Analyzing Sun Coast Data

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Analyzing Sun Coast Data

(Analyzing Sun Coast Data)

Correlation And Regression Analysis Using Sun Coast Data Set

Sun Coast Remediation Course Project Guidance

Background

To help make a connection between business research and its use in the real world, this course will use an iterative course project. Throughout the term, you will serve as the health and safety director for Sun Coast Remediation (Sun Coast).

Sun Coast provides remediation services to business and governmental organizations. Most of their contracts involve working within contamination sites where they remove toxic substances from soil and water. In addition to the toxicity of the air, water, and soil their employees come into contact with, the work environment is physically demanding and potentially contributory to injuries involving musculoskeletal systems, vision, and hearing. Sun Coast genuinely cares about the health, safety, and well-being of their 5,500 employees, but they are also concerned about worker compensation costs and potential long-term litigation from injuries and illness related to employment.

Health and Safety Director Task(Analyzing Sun Coast Data)

Sun Coast hired you last month to replace the previous health and safety director, who left to pursue other opportunities. This is a critical position within the company because there are many health and safety-related issues due to the nature of the work. The former health and safety director was in the midst of analyzing these issues through the implementation of a research project when she left the organization.

Throughout the term, you will use your knowledge of research methods to bring the research project to fruition. You will conduct a literature review, develop research questions and hypotheses, create the research design, test data, interpret data, and present the findings. Each unit will accomplish one of these tasks. It has already been decided that the business problems will be best addressed using a quantitative research methodology. You will not collect any data for this project. The former health and safety director had already collected the data, which is provided for you in an Excel spreadsheet.

Statistical Tools

You will conduct the data analysis using Microsoft Excel Toolpak. View these links for information: https://support.office.com/en-us/article/load-the-analysis-toolpak-in-excel-6a63e598-cd6d-42e3-9317-6b40ba1a66b4 and https://www.excel-easy.com/data-analysis/analysis-toolpak.html

Sun Coast Remediation Course Project Sections

Since this is a quantitative research study, there are specific steps that should be followed. The following is a template that will help you develop your project. (It is also provided as a template in Unit VII.) Use this information to guide your completion of the course project.

Table of Contents

Include the table of contents here. There is a tool for creating a table of contents in the References tab of the Microsoft Word tool bar at the top of the screen. Remember to delete this text and the instructions from the previous page before you begin.

Executive Summary

The executive summary will go here. The paragraphs are not indented, and it should be formatted like an abstract. The executive summary should be composed after the project is complete. It will be the final step in the project. Delete this text before you begin.

Sun Coast Remediation Course Project

Introduction(Analyzing Sun Coast Data)

Note: The following introduction should remain in the research project unchanged. Delete this note before you begin.

Senior leadership at Sun Coast has identified several areas for concern that they believe could be solved using business research methods. The previous director was tasked with conducting research to help provide information to make decisions about these issues. Although data were collected, the project was never completed. Senior leadership is interested in seeing the project through to fruition. The following is the completion of that project and includes the statement of the problems, literature review, research objectives, research questions and hypotheses, research methodology, design, and methods, data analysis, findings, and recommendations.

Statement of the Problems

Note: The following statement of the problems should remain in the research project unchanged. Delete this note before you begin.

Six business problems were identified:

Particulate Matter (PM)

There is a concern that job-site particle pollution is adversely impacting employee health. Although respirators are required in certain environments, PM varies in size depending on the project and job site. PM that is between 10 and 2.5 microns can float in the air for minutes to hours (e.g., asbestos, mold spores, pollen, cement dust, fly ash), while PM that is less than 2.5 microns can float in the air for hours to weeks (e.g. bacteria, viruses, oil smoke, smog, soot). Due to the smaller size of PM that is less than 2.5 microns, it is potentially more harmful than PM that is between 10 and 2.5 since the conditions are more suitable for inhalation. PM that is less than 2.5 is also able to be inhaled into the deeper regions of the lungs, potentially causing more deleterious health effects. It would be helpful to understand if there is a relationship between PM size and employee health. PM air quality data have been collected from 103 job sites, which is recorded in microns. Data are also available for average annual sick days per employee per job-site.

Safety Training Effectiveness(Analyzing Sun Coast Data)

Health and safety training is conducted for each new contract that is awarded to Sun Coast. Data for training expenditures and lost-time hours were collected from 223 contracts. It would be valuable to know if training has been successful in reducing lost-time hours and, if so, how to predict lost-time hours from training expenditures.

Sound-Level Exposure

Sun Coast’s contracts generally involve work in noisy environments due to a variety of heavy equipment being used for both remediation and the clients’ ongoing operations on the job sites. Standard ear-plugs are adequate to protect employee hearing if the decibel levels are less than 120 decibels (dB). For environments with noise levels exceeding 120 dB, more advanced and expensive hearing protection is required, such as earmuffs. Historical data have been collected from 1,503 contracts for several variables that are believed to contribute to excessive dB levels. It would be important if these data could be used to predict the dB levels of work environments before placing employees on-site for future contracts. This would help the safety department plan for procurement of appropriate ear protection for employees.

New Employee Training

All new Sun Coast employees participate in general health and safety training. The training program was revamped and implemented six months ago. Upon completion of the training programs, the employees are tested on their knowledge. Test data are available for two groups: Group A employees who participated in the prior training program and Group B employees who participated in the revised training program. It is necessary to know if the revised training program is more effective than the prior training program.

Lead Exposure

Employees working on job sites to remediate lead must be monitored. Lead levels in blood are measured as micrograms of lead per deciliter of blood (μg/dL). A baseline blood test is taken pre-exposure and postexposure at the conclusion of the remediation. Data are available for 49 employees who recently concluded a 2-year lead remediation project. It is necessary to determine if blood lead levels have increased.

Return on Investment

Sun Coast offers four lines of service to their customers, including air monitoring, soil remediation, water reclamation, and health and safety training. Sun Coast would like to know if each line of service offers the same return on investment. Return on investment data are available for air monitoring, soil remediation, water reclamation, and health and safety training projects. If return on investment is not the same for all lines of service, it would be helpful to know where differences exist.

Literature Review

After providing a brief introduction to this section, students should include the literature review information here. Important Note: Students should refer to the information presented in the Unit I Study Guide and the Unit I Syllabus instructions to complete this section of the project. Delete this before you begin.

Research Objectives

After providing a brief introduction to this section, students should include research objectives here. Students should compose short, direct statements about the objectives of the study. Research objectives should relate to the problems that have been identified above, and there should be one objective for each problem as shown in the example below. Important Note: Students should refer to the information presented in the Unit II Syllabus instructions to complete this section of the project. Delete this before you begin.

Example:

RO1: Determine if a person’s height is related to weight.

RO2:

RO3:

RO4:

RO5:

RO6:

Research Questions and Hypotheses(Analyzing Sun Coast Data)

After providing a brief introduction to this section, students should state the research questions and hypotheses. Each research objective should have a corresponding research question and a null and alternative hypothesis as shown in the example below. In total, there should be six research questions and twelve hypotheses. Important Note: Students should refer to the information presented in the Unit II Study Guide and the Unit II Syllabus instructions to complete this section of the project. Delete this before you begin.

Example:

RQ1: Is there a relationship between height and weight?

H01: There is no statistically significant relationship between height and weight.

HA1: There is a statistically significant relationship between height and weight.

Research Methodology, Design, and Methods

After providing a brief introduction to this section, students should detail the research design they have selected and why it is an appropriate research approach for addressing the business problems. Use the following subheadings to include all required information. Important Note: Students should refer to the information presented in the Unit III Study Guide and the Unit III Syllabus instructions to complete this section of the project. Delete this before you begin.

Research Methodology

Explain the research methodology chosen for this research project and provide rationale for why it is appropriate given the problems.

Research Design

Students should explain whether the research design is exploratory, causal, or descriptive. Provide rationale for the choice.

Research Methods

Students should describe the research methods used for this research study based on the research methodology, research design, and research questions, and provide a rationale as to why they were chosen. They might include a combination of experimentation, descriptive statistics, correlation, and causal-comparative methods.

Data Collection Methods

Students should specify how the data were most likely collected to test the hypotheses. Data collection methods include, but are not limited to, survey, observation, and records analysis.

Sampling Design

Students should briefly describe the type of sampling design that was most likely used for the data that were collected. Choices include, but are not limited to, random sample, convenience sample, etc. Explain your rationale for your sampling design selection(s).

Data Analysis Procedures

Students should specify the statistical procedures used to test each set of hypotheses from among correlation, regression, t test, and ANOVA. They should explain why each procedure was the most appropriate choice.

Example:

Correlation is the preferred procedure to use to test the RQ1 hypotheses since the interest is whether a relationship exists between an independent variable (IV) and dependent variable (DV). Correlation will indicate if there is a relationship between height (IV) and weight (DV), the strength of the relationship, and the direction of the relationship.

Data Analysis: Descriptive Statistics and Assumption Testing(Analyzing Sun Coast Data)

After providing a brief introduction to this section, students should provide the Excel Toolpak results of their descriptive analyses. Frequency tables, histograms, and descriptive statistics tables should be cut and pasted from Excel directly into the final project document. Important Note: Students should refer to the information presented in the Unit IV Study Guide and the Unit IV Syllabus instructions to complete this section of the project. Delete this before you begin.

Correlation: Descriptive Statistics and Assumption Testing

Students should include this information here. Include frequency table, histogram, and descriptive statistics table. Evaluate and discuss the descriptive statistics and make an explicit statement about whether the assumptions for parametric statistical testing were met or not met. Delete these statements before you begin.

Simple Regression: Descriptive Statistics and Assumption Testing

Students should include this information here. Include frequency table, histogram, and descriptive statistics table. Evaluate and discuss the descriptive statistics, and make an explicit statement about whether the assumptions for parametric statistical testing were met or not met. Delete these statements before you begin.

Multiple Regression: Descriptive Statistics and Assumption Testing

Students should include this information here. Include frequency table, histogram, and descriptive statistics table. Evaluate and discuss the descriptive statistics and make an explicit statement about whether the assumptions for parametric statistical testing were met or not met. Delete these statements before you begin.

Independent Samples t Test: Descriptive Statistics and Assumption Testing

Students should include this information here. Include frequency table, histogram, and descriptive statistics table. Evaluate and discuss the descriptive statistics, and make an explicit statement about whether the assumptions for parametric statistical testing were met or not met. Delete these statements before you begin.

Dependent Samples (Paired-Samples) t Test: Descriptive Statistics and Assumption Testing

Students should include this information here. Include frequency table, histogram, and descriptive statistics table. Evaluate and discuss the descriptive statistics, and make an explicit statement about whether the assumptions for parametric statistical testing were met or not met. Delete these statements before you begin.

ANOVA: Descriptive Statistics and Assumption Testing

Students should include this information here. Include frequency table, histogram, and descriptive statistics table. Evaluate and discuss the descriptive statistics, and make an explicit statement about whether the assumptions for parametric statistical testing were met or not met. Delete these statements before you begin

Data Analysis: Hypothesis Testing(Analyzing Sun Coast Data)

After providing a brief introduction to this section, students should provide the Excel Toolpak results of their hypothesis testing. The statistical output tables should be cut and pasted from Excel directly into the final project document. For the regression hypotheses, the students should display and discuss the predictive regression equations. Important Note: Students should refer to the information presented in the Units V and VI Study Guides and the Units V and VI Syllabus instructions to complete this section of the project. Delete this before you begin.

Correlation: Hypothesis Testing

Students should include this information here. Restate the null and alternative hypotheses, cut and paste the statistical output from Excel Toolpak, discuss the p-value in relation to alpha and explicitly accept or reject the null and alternative hypotheses. Delete these statements before you begin.

Simple Regression: Hypothesis Testing

Students should include this information here. Restate the null and alternative hypotheses, cut and paste the statistical output from Excel Toolpak, and interpret and explain the simple regression analysis results below the Excel output. Your explanation should include: multiple R, R square, alpha level, ANOVA F value, accept or reject the null and alternative hypotheses for the model, statistical significance of the x variable coefficient, and the regression model as an equation with explanation. Delete these statements before you begin.

Multiple Regression: Hypothesis Testing

Students should include this information here. Restate the null and alternative hypotheses, cut and paste the statistical output from Excel Toolpak, and interpret and explain the simple regression analysis results below the Excel output. Your explanation should include: multiple R, R square, alpha level, ANOVA F value, accept or reject the null and alternative hypotheses for the model, statistical significance of the x variable coefficients, and the regression model as an equation with explanation.

Independent Samples t Test: Hypothesis Testing

Students should include this information here. Restate the null and alternative hypotheses, cut and paste the statistical output from Excel Toolpak, discuss the p-value in relation to alpha and explicitly accept or reject the null and alternative hypotheses. Delete these statements before you begin.

Dependent Samples (Paired Samples) t Test: Hypothesis Testing

Students should include this information here. Restate the null and alternative hypotheses, cut and paste the statistical output from Excel Toolpak, discuss the p-value in relation to alpha and explicitly accept or reject the null and alternative hypotheses. Delete these statements before you begin.

ANOVA: Hypothesis Testing

Students should include this information here. Restate the null and alternative hypotheses, cut and paste the statistical output from Excel Toolpak, discuss the p-value in relation to alpha and explicitly accept or reject the null and alternative hypotheses. Delete these statements before you begin.

Findings(Analyzing Sun Coast Data)

After providing a brief introduction to this section, students should discuss the findings in the context of Sun Coast’s problems and the associated research objectives and research questions. Important Note: Students should refer to the information presented in the Unit VII Study Guide and the Unit VII Syllabus instructions to complete this section of the project. Restate each research objective, and discuss them in the context of your hypothesis testing results. The following are some things to consider. What answers did the analysis provide to your research questions? What do those answers tell you? What are the implications of those answers? Delete these statements before you begin.

Example:

RO1: Determine if a person’s height is related to weight.

The results of the statistical testing showed that a person’s height is related to their weight. It is a relatively strong and positive relationship between height and weight. We would, therefore, expect to see in our population taller people having a greater weight relative to those of shorter people. This determination suggests restrictions on industrial equipment should be stated in maximum pounds allowed rather than maximum number of people allowed.

RO2:

RO3:

RO4:

RO5:

RO6:

Recommendations(Analyzing Sun Coast Data)

After providing a brief introduction to this section, students should include recommendations here in paragraph form. This section should be your professional thoughts based upon the results of the hypothesis testing. You are the researcher, and Sun Coast’s leadership team is relying on you to make evidence-based recommendations. Delete these statements before you begin.

References

Include references here using hanging indentations, and delete these statements and example reference.

Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (5th ed.). Thousand Oaks, CA: Sage.

 
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Strategic Consensus Organizing Principles

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Strategic Consensus Organizing Principles

(Strategic Consensus Organizing Principles)

The Strategic Principles of Consensus Organizing

Can you teach people how to be strategic? It’s a question that trainers and teachers often ask as they approach a new training program or a classroom full of eager faces. Thinking strategically and pragmatically is the hallmark of a good consensus organizer. Consensus organizing is based on several key strategic principles that are the fundamental beliefs and values that guide the implementation of the model and its activities. These principles also express the philosophy and the attitude behind the consensus organizing approach. As consensus organizers begin to enter a community, these principles are at the forefront of their minds as their organizing strategy takes shape. This chapter explains these principles and why they are important to consensus organizing.

Table 3.1 summarizes the five core strategic principles of consensus organizing (Consensus Organizing Institute, n.d.).

Table 3.1 Strategic Principles of Consensus Organizing

Strategic Principle Key Strategies Example
Solutions to local problems should come from affected communities.
  • Strategies and objectives are set by the community.
  • Incorporate community’s existing social networks.
  • Analyze and identify individual self-interests and mutual community interests and build relationships based on those interests.
 Residents bring recent crime problems to the attention of the local police and ask for assistance in developing a crime watch program. The local police work with residents to develop a neighborhood watch. Relationships are built between residents and the police.
Pragmatic leadership is present in communities, though not always recognized.
  • Identify trusted, respected, behind-the-scenes leaders.
  • Position leaders to take responsibility for effort.
  • Build leaders’ skills and confidence to succeed.
 An older woman to whom young mothers turn for parenting help.
A teacher who stays after school hours to help his students with their studies.
Self-interest can be harnessed as a motivation for improving the welfare of communities.
  • Analyze and identify the interests of members of external power structure (e.g., government, philanthropy, corporate, social service).
  • Position them to make genuine contributions aligned with their and the community’s interests.
 A local foundation director who has $1 million to improve housing in local distressed neighborhoods, but who does not have relationships with community-based organizations located in those neighborhoods.
If a project achieves its short-term goals without positioning the participants to make even greater gains in the future, then an opportunity has been missed.
  • Position community leaders to take the lead on projects.
  • Use short-term projects to build community’s skills and relationships with power structure to lay the foundation for more comprehensive efforts.
 A neighborhood cleanup that builds relationships among residents and between residents and the city can lead to new opportunities, such as improved code enforcement and the rehab of dilapidated housing in cleanup area.
Building relationships and strategically positioning leaders to make a program work requires time, care, and finesse.
  • Understand and gain trust of leaders of the community and power structure.
  • Break down stereotypes and misperceptions that community and power structure have of one another.
  • Invest the time up front to position leaders of the community and power structure to develop genuine strategic partnerships.

 

 Going to churches, agencies, and community organization meetings, and meeting residents one-on-one in their homes. Attending local housing symposiums, city council meetings, and chamber of commerce meetings, as well as meeting one-on-one with members of the e
 
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Transforming Hospital Organizational Effectiveness

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Transforming Hospital Organizational Effectiveness

(Transforming Hospital Organizational Effectiveness)

Case Study Essay

Read the below case and then write a paper.

you must have a minimum of 3 scholarly sources (peer-reviewed journal articles). Please ensure that you follow standard APA formatting. Your paper must have a title page and a reference page. You must have a minimum of five (5) in-text citations.

During the paper, answer these questions. DO NOT put this in a question and answer format. Make sure there is an introduction and conclusion, and some parts of the questions as headings and subheadings and follow the recommended outline to ensure that all questions are answered.

Respond to the following questions in an essay (3 page minimum).

1. Assemble the diagnostic data into a framework and prepare feedback to the senior administrators of the hospitals. What’s your sense of the organization’s current structure and employee involvement issues?

2. What changes would you recommend? Is a total quality management intervention appropriate here? What alternatives would you propose?

3. Design an implementation plan for your preferred intervention.

Be sure that you describe the most common organization structures used today as well as their strengths and weaknesses.  Describe the employee involvement and how it relates to performance. Consider whether there should be a sociotechnical systems work design.

Selected Cases THE SULLIVAN HOSPITAL SYSTEM

PART I(Transforming Hospital Organizational Effectiveness)

At the Sullivan Hospital System (SHS), CEO Ken Bonnet expressed concern over market share losses to other local hospitals over the past six to nine months and declines in patient satisfaction measures. To him and his senior administrators, the need to revise the SHS organization was clear. It was also clear that such a change would require the enthusiastic participation of all organizational members, including nurses, physicians, and managers.

At SHS, the senior team consisted of the top administrative teams from the two hospitals in the system. Bonnet, CEO of the system and president of the larger of the two hospitals, was joined by Sue Strasburg, president of the smaller hospital. Their two styles were considerably different. Whereas Bonnet was calm, confident, and mild-mannered, Strasburg was assertive, enthusiastic, and energetic. Despite these differences, both administrators demonstrated a willingness to lead the change effort. In addition, each of their direct reports was clearly excited about initiating a change process and was clearly taking whatever initiative Bonnet and Strasburg would allow or empower them to do.

You were contacted by Bonnet to conduct a three-day retreat with the combined management teams and kick off the change process. Based on conversations with administrators from other hospitals and industry conferences, the team believed that the system needed a major overhaul of its Total Quality Management (TQM) process for two primary reasons. First, they believed that an improved patient care process would give physicians a good reason to use the hospital, thus improving market share. Second, although the Joint Commission on Accreditation of Healthcare Organizations (JCAHO) had enacted policies some time ago encouraging hospitals to adopt continuous improvement principles, SHS’s system was sorely behind the times. The team readily agreed that they lacked the adequate skills and knowledge associated with implementing a more sophisticated TQM process. This first meeting was to gather together to hear about how TQM, engagement, and other strategic change processes had advanced and the issues that would need to be addressed if more sophisticated processes were to be implemented. During the meeting, you guided them through several exercises to get the team to examine methods of decision making, how team-based problem solving had advanced, and explored their understanding of the hospital’s current mission, goals, and strategies.

Although you were concerned about starting the process with a workshop that explored a solution rather than understanding the problem, you remembered Roger Harrison’s consulting rule, “Start where your client is at,” and agreed to conduct the workshop. You were assured by Bonnet that the hospital system was committed to making substantive changes and that this was only the first step. In addition, and in support of this commitment, Bonnet told you that he had already agreed in principle to begin a work redesign process in a few of the nursing units at each hospital and had begun to finalize a contract with a large consulting firm to do the work. The workshop was highly praised and you convinced the team to hold off on the work design implementation long enough to conduct a diagnosis of the system.

Following the retreat, your diagnosis of the SHS organization employed a variety of data collection activities including interviews with senior managers from both hospitals as well as a sampling of middle managers and staff (for example, nurses, ancillary professionals, and environmental services providers). Questions about the hospital’s mission garnered the most consensus and passion. There was almost unanimous commitment to the breadth of services provided and the values that played a prominent role in the delivery of those services by a Catholic-sponsored health care organization, such as SHS. A mission and values statement was clearly posted throughout the hospital and many of the items in that statement were repeated almost verbatim in the interviews.

From there, however, answers about the organization’s purpose and objectives became more diverse. With respect to goals and objectives, different stakeholder groups saw them differently. Senior administrators were fairly clear about the goals listed in the strategic plan. These goals included increasing measurements of patient satisfaction, decreasing the amount of overtime, and increasing market share. However, among middle managers and supervisors, there was little awareness of hospital goals or how people influenced their accomplishment. A question about the hospital’s overall direction or how the goals were being achieved yielded a clear split in people’s perceptions. Some believed the hospital achieved its objectives through its designation as the area’s primary trauma center. They noted that if someone’s life were in danger, the best chance of survival was to go to SHS. The problem, respondents joked, was that “after we save their life, we tend to forget about them.” Many, however, held beliefs that could be labeled “low cost.” That is, objectives were achieved by squeezing out every penny of cost no matter how that impacted patient care.

Opinions about the policies governing the hospital’s operation supported a general belief that the organization was too centralized. People felt little empowerment to make decisions. There also were a number of financial policies that were seen as dictated from the corporate office, where “shared services” existed, including finance, marketing, information systems, and purchasing. Further, several policies limited a manager’s ability to spend money, especially if it wasn’t allocated in budgets.

In addition to the managerial sample, a variety of individual contributors and supervisors were interviewed either individually or in small groups to determine the status and characteristics of different organization design factors. The organization’s policy and procedure manuals, annual reports, organization charts, and other archival information were also reviewed. This data collection effort revealed the following organization design features:

(Transforming Hospital Organizational Effectiveness)

· • The hospitals’ structures were more bureaucratic than organic. Each hospital had a functional structure with a chief executive officer and from two to five direct reports. Both hospitals had directors of nursing services and professional services. The larger hospital had additional directors in special projects, pastoral care, and other staff functions that worked with both hospitals. Traditional staff functions, such as finance, procurement, human resources, and information services, were centralized at the corporate office. There were a number of formal policies regarding spending, patient care, and so on.

· • The basic work design of the hospitals could be characterized as traditional. Tasks were narrowly defined (janitor, CCU nurse, admissions clerk, and so on). Further, despite the high levels of required interdependency and complexity involved in patient care, most jobs were individually based. That is, job descriptions detailed the skills, knowledge, and activities required of a particular position. Whenever any two departments needed to coordinate their activities, the work was controlled by standard operating procedures, formal paperwork, and tradition.

· • Information and control systems were old and inflexible. From the staff’s perspective, and to some extent even middle management’s, little, if any, operational information (that is, about costs, productivity, or levels of patient satisfaction) was shared. Cost information in terms of budgeted versus actual spending was available to middle managers and their annual performance reviews were keyed to meeting budgeted targets. Unfortunately, managers knew the information in the system was grossly inaccurate. They felt helpless in affecting change, since the system was centralized in the corporate office. As a result, they devised elaborate methods for getting the “right” numbers from the system or duplicated the system by keeping their own records.

· • Human resource systems, also centralized in the corporate office, were relatively generic. Internal job postings were updated weekly (there was a shortage of nurses at the time). There was little in the way of formal training opportunities beyond the required, technical educational requirements to maintain currency and certification. Reward systems consisted mainly of a merit-based pay system that awarded raises according to annual performance appraisal results. Raises over the previous few years, however, had barely kept pace with the cost of living. There also were various informal recognition systems administered by individual managers.

PART II(Transforming Hospital Organizational Effectiveness)

This diagnostic data was discussed and debated among the senior team. A steering committee composed of physicians, managers, nurses, and other leaders from both hospitals was convened, and creating a vision for the system and the change effort became one of their first tasks.

The steering committee spent hours poring over vision statements from other organizations, discussing words and phrases that described what they thought would be an exciting outcome from interacting with the hospital, and trying to satisfy their own needs for something unique and creative. When the first draft of a statement emerged, they spent several months sharing and discussing it with a variety of stakeholders. To their dismay, the initial version was roundly rejected by almost everyone as boring, unimaginative, or unreal. The group discussed the input gathered during these discussions and set about the task of revising the vision. After several additional iterations and a lot of wordsmithing, a new and more powerful vision statement began to emerge. The centerpiece of the vision was the belief that the organization should work in such a way that the patient felt like they were the “center of attention.” Such an orientation to the vision became a powerful rallying point since many of the hospitals’ management teams readily understood that there was an existing perception of poor service that needed to be turned around.

The three months spent working and adapting the vision statement was well worth it. As it was presented to people in small meetings and workshops, each word and phrase took on special meaning to organizational members and generated commitment to change.

 
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Leadership Theories 3

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Leadership Theories 3

Leadership Theories 3

(Leadership Theories 3) NO PLAGIARISM

PLEASE READ ALL DIRECTIONS AND FOLLOW ACCORDINGLY

Resources: The Art and Science of Leadership, Ch. 3 and Leadership Theories Matrix

As a leader, you often need to display or clarify a concept.  A matrix is a grid that contains information and offers a visual model of ideas.  For this assignment, you will create a matrix that explains leadership theories.

Research the following five leadership theories and include these in your matrix (use the matrix template provided):

  • Trait theories of leadership
  • Behavioral theories of leadership
  • Contingency models of leadership
  • Skills approaches to leadership
  • Situational methods of leadership

Develop the definition and characteristics of various leadership theories and approaches to leadership (trait leadership, behavioral leadership, contingency leadership, skills leadership and situational leadership). 

Trait Leadership

Trait leadership focuses on inherent qualities. Effective leaders possess traits such as confidence, intelligence, and integrity.

Characteristics include innate abilities. These leaders naturally exhibit charisma, decisiveness, and strong communication skills.

Behavioral Leadership

Behavioral leadership emphasizes actions over traits. Leaders can develop effective behaviors through learning and practice.

Key characteristics involve task-oriented and people-oriented behaviors. Effective leaders balance these behaviors to achieve goals.

Contingency Leadership

Contingency leadership suggests the best leadership style depends on the situation. There is no one-size-fits-all approach.

Characteristics include adaptability. Leaders must assess situational variables and modify their style to be effective.

Skills Leadership

Skills leadership highlights the importance of learned abilities. Effective leaders develop specific skills through training and experience.

Characteristics involve technical, human, and conceptual skills. These skills enable leaders to manage tasks, people, and ideas effectively.

Situational Leadership

Situational leadership adapts based on followers’ needs. Leaders adjust their approach according to the development level of their team.

Key characteristics include flexibility and responsiveness. Leaders diagnose the situation and apply the appropriate leadership style.

Provide one or more examples to support the definition or characteristics of each form of leadership. 

Write out your explanations in each section using about 150 to 200 words for each section. First person writing may be used for this assignment.

Format your Leadership Theory Matrix with the template and consistent with APA guidelines.

Spell check and proofread the matrix carefully.

References

https://www.researchgate.net/publication/293885908_Leadership_Theories_and_Styles_A_Literature_Review#:~:text=Main%20theories%20that%20emerged%20during,and%20Laissez%20Faire%20leadership%20theory.&text=Content%20may%20be%20subject%20to%20copyright.

 
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Health Insurance Case Scenarios

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Health Insurance Case Scenarios

(Health Insurance Case Scenarios)

Health Insurance Basic Questions

1. Mrs. Washington was involved in a traffic accident. She saw Dr. Grace because of pain in her right knee. She explained that this pain was the result of her knee hitting the dashboard on impact. Mrs. Washington has a history of arthritis in both of her knees. Dr. Grace listed her diagnosis from this visit as bilateral degenerative joint disease. What are the consequences of this diagnosis on Mrs. Washington’s case?

2. Anthony is 17 years of age and attending college in Maine. One day while skiing, he broke his leg and was taken to the emergency room of the local hospital. When filling out the necessary paperwork, whom should Anthony name as the party responsible for the charges incurred?

3. Mrs. Cassidy called her physician’s office complaining that her insurance company was billed twice for her office visit on November 19. Carole pulled Mrs. Cassidy’s file and verified that this was true. She apologized for the error and assured Mrs. Cassidy that she would correct this error. What steps should be taken to avoid duplicate billing

4. Mrs. Ellison called her doctor’s office and spoke with Lorraine about a bill from her recent visit. Mrs. Ellison has been Dr. Johnson’s patient for many years, although prior to her recent visit it had been some time since she saw Dr. Johnson. Mrs. Ellison was sure that there was a billing error because she was billed for a new patient visit. How should Lorraine handle this patient’s inquiry

5. Allison was working at the reception desk during a department staff meeting. She normally worked in medical records and therefore had an understanding of the importance of patient confidentiality. When a caseworker from a workers’ compensation case arrived and asked to discuss a patient’s case with the physician, Allison explained that she would need a signed release form from the patient before that was possible. Did Allison handle this situation correctly?

6. Jamie is reviewing Mr. Murphy’s medical file to process his insurance claim. She has difficulty reading the doctor’s notes, but rather than flag the file to check with the doctor, Jamie makes an educated guess and completes the insurance form. What are some possible consequences of Jamie’s actions?

 
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Navigating Ethics in Healthcare

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Navigating Ethics in Healthcare

(Navigating Ethics in Healthcare)

HEALTHCARE ETHICS

ASSIGNMENT 2

HA570-1: Critique the need for and role of ethics in the American healthcare environment.

Instructions:

As you have learned, differences exist between morality, ethics, and the law. Morality refers to an individual‘s moral compass or belief system based on their individual perspective. Ethics refers to the standard of action that should be performed, irregardless of an individual‘s perspective, opinion, or ideology. Law simply refers to any legal requirements involved.

In an ethical dilemma, varying perspectives exist. Oftentimes, these perspectives include the patient, provider, caregiver, family member, or staff member. Every person has a unique perspective and it is these unique experiences that form our belief system. As a future leader in healthcare administration, it is important to identify and understand how these varying perspectives act as a foundation for individual morality and influence our decisions. Likewise, it is also important to understand that despite personal morality, providers are required to abide by the ethical standards present in the field.

In this unit, you will explore the differences between morality and ethics by examining a scenario and its implications from varying perspectives. By the end of this unit, you will be able to proficiently discuss the need for and role of ethics in the American healthcare environment.

To begin, select one (1) of the following stories from your textbook from which to address the assignment requirements:

· The Story of the Harvey Family and the Interprofessional Care Team (p. 3)

· The Story of Pat Jackson, the Interprofessional Care Team, and Mr. Sanchez (p. 29)

· The Story of Bill Boyd and Kate Lindy (p. 53)

· The Story of Elizabeth Kim, Max Diaz, Melinda Diaz, and Michael Meary (p. 73)

· The Story of Michael Halloran and Amrou Croteau (p. 106)

In a 5-7 page paper (excluding title page and reference list), address the following:

· Summarize the story briefly providing the ethical dilemma and parties involved.

· Discuss the varying perspectives from the parties involved. Be sure to discuss potential reasoning for the varied perspectives. Please note that you may need to include fictitious information to complete this.

· Discuss ethical standards relevant to the unique scenario.

· Identify possible personal moral convictions which may influence the direction of the story.

· Foreshadow potential events in the story of what could happen if ethical standards did not exist.

Report your findings noting the following standards:

· Current APA formatting (e.g. title page, citations, conclusion, reference page, etc.) should be used.

· Proper grammar, spelling, and punctuation are expected.

· Plagiarism, self-plagiarism, unoriginal work, and unattributed content is not permitted and will result in action pursuant to the University’s Plagiarism Policy and Procedures.

Navigating Ethics in Healthcare

HA570-2: Assess national regulations regarding confidentiality and ethical considerations of confidentiality laws.

Instructions:

As you have learned, regulations and laws exist to protect patient privacy and uphold confidentiality. Especially in a technological advanced setting, such as healthcare, maintaining these standards can prove challenging as a result of new, ethical issues not previously experienced. As a future leader in healthcare administration, it is important to understand national regulations relative to confidentiality, privacy, and informed consent.

In this unit, you will compare ethical issues of confidentiality by examining a scenario and its implications of various regulations and laws. By the end of this unit, you will be able to assess national regulations regarding confidentiality and ethical considerations of confidentiality laws.

To begin, select one (1) of the following stories from your textbook from which to address the assignment requirements:

· The Story of Twyla Roberts and Mary Louis (p. 203)

· The Story of Beth Tottle, Mrs. Uwilla, and the Uwilla Family (p. 229)

· The Story of Jack Burns and Cecelia Langer (p. 250)

· The Story of Meg Perkins and Helen Williams (p. 279)

In a 5-7 page paper (excluding title page and reference list), address the following:

· Summarize the story briefly providing the ethical dilemma and parties involved.

· Discuss the varying perspectives from the parties involved. Be sure to discuss potential reasoning for the varied perspectives. Please note that you may need to include fictitious information to complete this.

· Discuss ethical standards relevant to the unique scenario.

· Identify national regulations and laws pertinent to the story.

· Using the six-step process, explain a practical, ethical solution to your story.

Report your findings noting the following standards:

· Current APA formatting (e.g. title page, citations, conclusion, reference page, etc.) should be used.

· Proper grammar, spelling, and punctuation are expected.

· Plagiarism, self-plagiarism, unoriginal work, and unattributed content is not permitted and will result in action pursuant to the University’s Plagiarism Policy and Procedures.

Navigating Ethics in Healthcare

3: Evaluate other healthcare industry regulations that protect patients and providers and best practices for assuring that they are followed.

Instructions:

As you have learned, the role of the ethical professional in the healthcare field requires conscious decision-making and consideration for all parties involved. As a future leader in healthcare administration, it is important to understand various industry regulations that protect patients and providers in an effort to make an appropriate decision with a caring response.

In this unit, you will use the six-step process to work through an ethical issue in healthcare to make an appropriate, caring response. By the end of this unit, you will be able to identify various healthcare industry regulations that protect patients and providers. Likewise, as a result, you will be able to discuss the proper moral limits of intervention.

To begin, select one (1) of the following stories from your textbook from which to address the assignment requirements:

· The Story of Mitch Rice, Gail Campis, the Belangers, and the Botched Home Visit (p. 123)

· The Story of Maureen Gudonis and Isaias Echevarria (p. 153)

· The Story of Simon Kapinsky and the Interprofessional Ethics Subcommittee to Implement a Green Health Plan (p. 179)

In a 5-7 page paper (excluding title page and reference list), address the following:

· Summarize the story briefly providing the ethical dilemma and parties involved.

· Discuss three healthcare rules, regulations, or laws relevant to the story (in additional to national laws, you will need to research industry-specific regulations based on your story selection).

· Thoroughly discuss each phase of the six-step process relative to your story selection.

· Recommend an appropriate, caring response that aligns with industry-specific regulations and ethical standards.

Report your findings noting the following standards:

· Current APA formatting (e.g. title page, citations, conclusion, reference page, etc.) should be used.

· Proper grammar, spelling, and punctuation are expected.

· Plagiarism, self-plagiarism, unoriginal work, and unattributed content is not permitted and will result in action pursuant to the University’s Plagiarism Policy and Procedures.

Navigating Ethics in Healthcare

4: Analyze the effect ethics has on day-to-day operations as well as long-term policy and procedure in a healthcare environment.

Instructions:

As you have learned, the population segment aged 65 and older is rapidly aging in the United States. As a result, new ethical challenges are emerging in the field, specifically in long-term care (i.e. skilled nursing facilities including those with post-surgical short-term rehabilitation services).

One area of concern is the challenge of providing adequate healthcare services to a growing (and aging) population with limited resources. This dilemma is expected to increase as the population continues to increase. As a result, the demand for medical services increases; however, with finite healthcare resources, providing services to everyone who requires care is not possible.

This will present a unique challenge for nursing home administrators because they are responsible to ensure that resident needs (including receiving healthcare services) are being met. Determining who should receive the necessary care that is available will be an interdisciplinary challenge indeed.

Scholars have posited a variety of allocation methods; however, these principles have not been without controversy. One of the most recent principles introduced is the Complete Lives System. This method is unique, because unlike its predecessors that relied on a unilateral perspective, the Complete Lives Systems takes a multi-allocation system approach.

In this unit, you will combine your previous knowledge obtained throughout the course and apply clinical reasoning to evaluate moral action and its relevance to ethical-decision making in long-term care. Using ethical decision-making, you will determine the best method of allocating limited medical resources to a growing and aging population. By the end of this unit, you will be able to analyze the effect ethics has on day-to-day operations as well as long-term policy and procedure in a healthcare environment.

Navigating Ethics in Healthcare

Read the following articles from our library:

· Krütli, P., Rosemann, T., Törnblom, K. Y., & Smieszek, T. (2016). How to fairly allocate scarce medical resources: Ethical argumentation under scrutiny by health professionals and lay people. Plos ONE, 11(7), 1-18. doi:10.1371/journal.pone.0159086

· Persad, G., Wertheimer, A., & Emanuel, E. J. (2009). Department of Ethics: Principles for allocation of scarce medical interventions. The Lancet, 373, 423-431. doi:10.1016/S0140-6736(09)60137-9

Please review the following resources and using specific information from these resources, your course materials, and additional research, address the tasks posed below.

Three individuals in town require a hip surgery, followed by extensive rehabilitative therapy. Physical and occupational therapy will be provided at the skilled nursing facility where the individual will reside until able to return home. Below are details of each individual.

· Donna Mueller is a 58-year old disabled widow with no children. She spent her career as a homemaker and taking care of her husband. Donna requires surgery after falling at home while washing windows. Prior to the accident, Donna was relatively independent, although a stroke a few years prior left her partially paralyzed. She lives alone and has minimal company over.

· Steve McDonald is 40-year old unemployed musician. He has a teenage son who lives with the son’s mother in a neighboring town. At the age of 19, Steve left college to pursue a career as a drummer. For the past two decades, Steve has worked odd jobs while pursuing his dream. Although his perseverance has not landed him national attention, he has performed with a few, known bands in the area. Recently, while exiting stage left from a nightclub performance, Steve tripped over the dark stairs and fractured his hip, ultimately leaving him unemployed as he is currently unable to perform.

· Chris Snider is a 73-year old entrepreneur and business owner. Never married, Chris spent his career in the fast-pace, produce or perish industry of nanotechnology where he employs over 5,000 workers ranging from maintenance technicians to senior research engineers. Chris requires surgery after being innocently hit with a runaway golf cart on the back 9 with his visiting, foreign affiliates. Chris was completely independent prior to the accident. He lives alone; however, his business requires travel.

In a 6-8 page paper (excluding title page and reference list), address the following:

· Considering the aging population and existing challenges, discuss the potential role of allocation principles in the American healthcare system.

· Discuss the potential implications these principles have on the aging population (consider potential violations of federal antidiscrimination laws and ethical principles about fair treatment).

· Based on the Complete Lives System, discuss which individual would most likely receive the surgery.

· Based on your moral compass, ethical standards, and healthcare laws, discuss which individual you would recommend for surgery.

· Recommend the one allocation principle you would prefer as the primary medical intervention for a growing (and aging) population.

Report your findings noting the following standards:

· Current APA formatting (e.g. title page, citations, conclusion, reference page, etc.) should be used.

· Proper grammar, spelling, and punctuation are expected.

· Plagiarism, self-plagiarism, unoriginal work, and unattributed content is not permitted and will result in action pursuant to the University’s Plagiarism Policy and Procedures. 

 
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Stepping Forward In Stakeholder Satisfaction

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Stepping Forward In Stakeholder Satisfaction

 

Stepping Forward In Stakeholder Satisfaction

(Stepping Forward In Stakeholder Satisfaction)

Write (4-6) page paper in which you:

  • Analyze the manner in which Zappos’ leadership has fostered a culture of ethicalness in the company. Suggest two (2) actions that other companies can take in order to mimic this culture.

Zappos’ Leadership and Ethical Culture

Zappos’ leadership prioritizes transparency. They openly share information and encourage honest communication within the organization.

Moreover, they emphasize employee empowerment. Leaders trust employees to make decisions, fostering a sense of responsibility and ethical behavior.

Suggestions for Other Companies

Firstly, promote transparency. Share important information regularly and encourage open dialogue among all levels of employees.

Secondly, empower employees. Trust them with decision-making responsibilities, fostering accountability and ethical conduct within the company.

 

  • Determine the major impacts that Zappos’ leadership and ethical practices philosophy have had on its stakeholders.

(Stepping Forward In Stakeholder Satisfaction)

  • Examine three (3) of the ethical challenges that Zappos faces. Recommend three (3) actions that Zappos’ leadership should take in order to address these ethical challenges. (Stepping Forward In Stakeholder Satisfaction)

 

  • Evaluate the effectiveness of the core values in relation to developing a culture of ethicalness.  Determine the manner in which the core values support the stakeholder’s perspective.

 

  • Analyze the major ethical challenges that Zappos has faced. Determine whether or not you would have resolved these challenges differently than Zappos’ management. Provide a rationale for your response. (Stepping Forward In Stakeholder Satisfaction)

 

  • I will provide three (3) quality academic resources for you to use in this assignment. Note: Wikipedia and other similar Websites do not qualify as academic resources.

Your assignment must follow these formatting requirements:

  • Be typed, double-spaced, using Times New Roman font (size 12), with one-inch margins on all sides; citations and references must follow APA or school-specific format. Include a cover page containing the title of the assignment, the student’s name, the professor’s name, the course title, and the date. The cover page and the reference page are not included in the required assignment page length. (Stepping Forward In Stakeholder Satisfaction)

I WILL PROVIDE ATTACHMENT IN A DAY OR TWO TO THE WINNING BID

NO PLAGIARISM

WILL BE CHECKED BY TURNITIN AND SAFEASSIGN

References

https://www.redalyc.org/journal/1230/123056168002/html/

 
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Clinical Procedure Coding Practice

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Clinical Procedure Coding Practice

(Clinical Procedure Coding Practice)

ICD-PCS Coding

M132 Module 02 Coding Assignment

Find the correct code and explain your rationale for each case study below.

1. Case Study:

PREOPERATIVE DIAGNOSIS:

1. Gangrene right foot.

POSTOPERATIVE DIAGNOSIS:

1. Gangrene right foot.

OPERATION:

1. Right below the knee amputation.

ANESTHESIA: General LMA.

PROCEDURE: The patient was brought to the operative suite where a general LMA anesthesia was induced.

A Foley catheter was inserted. The right foot was s secluded in an isolation bag and the right lower extremity circumferentially prepped and draped in its entirety. Beginning on the right side the skin was marked with a marking pen 4 fingerbreadths below the tibial tuberosity anteriorly with a long posterior flap. The skin was incised circumferentially and the anterior musculature sharply divided exposing the tibia The tibia was cleaned with a periosteal elevator and then transected with the Stryker saw. The fibula was exposed and transected with the bone cutter and the amputation completed by sharply incising the posterior musculature. Bleeding vessels were ligated with 2-0 silk Ligature. There appeared to be adequate bleeding at this level for primary healing. The tibia was then cleaned with a bone rasp and the fibula with a rongeur. The wound was irrigated and ultimately closed without significant tension utilizing interrupted 2-0 vicryl sutures for reapproximation of the fascia and skin staples for reapproximation of the skin.

The right side was dressed with sterile gauze fluff dressings and a Kerlix roll. Estimated blood loss throughout the procedure was approximately 150 mL. The patient received one unit intraoperatively of packed cells because of preoperative anemia. She was transported in stable condition to the recovery room.

2. Case Study:(Clinical Procedure Coding Practice)

PROCEDURE: Open reduction and internal fixation of bilateral tibial plateau fractures.

INDICATIONS: This 23-year old was involved in a serious accident and sustained bilateral tibial plateau fractures

DESCRIPTION OF OPERATION: The patient was brought to the operating room and placed on the operating room table in the supine position. General anesthesia was induced, and after this both lower extremities were prepped and draped in the usual sterile fashion. Attention was first directed towards the left tibial plateau. A standard lateral procedure to reduce the lateral tibial plateau fracture was performed. After a submeniscal arthrotomy was performed, the joint was visualized via the lateral approach. The posterolateral fragments were reduced and the lateral tibial plateau was elevated, restoring the articular surface. K-wires were placed to provisionally hold this reduction. C-arm fluoroscopy was used to confirm good reduction of the joint surface. Next, a 6-hole lateral plateau locking plate from the Stryker sets was selected. This locking plate was advanced down the tibial shaft. Screws were placed to secre the plate to the bone. Four screws were placed in the distal shaft fragments and 4 locking screws in the proximal fragment. A kickstand screw was also placed in the locking mode. After all screws were placed, x-rays exhibited good reduction of the fracture, as well as good placement of all hardware. Next, the wound was thoroughly irrigated with normal saline. The meniscal arthrotomy was closed with the 0 PDS suture, including the capsule. Next, the IT band was closed with 0 Vicryl suture, followed by 2-0 Vicryl sutures for the skin and staples. Attention was then directed toward the right tibial plateau. A similar procedure was performed on the right side. Then, the lateral approach to the lateral tibial plateau was performed, exposing the fracture. The incision was approximately 4 cm on the right side. A 6-hole LISS plate was advanced down the tibial shaft. Four screws were placed in the distal fragments followed by four screws in the locking mode and proximal metaphyseal fragment. Excellent fixation was obtained. The C-arm fluoroscopy was used to confirm excellent reduction of the fracture on both the AP and lateral fluoroscopic images. Next, the wound was thoroughly irrigated and closed in layers. Sterile dressings were applied All wounds were dressed with sterile dressing and the patient was placed into knee immobilizers. The patient was then awakened from anesthesia, and transferred to recovery. The patient will be nonweightbearing for approximately three months on bilateral lower extremities. The patient will receive DVT prophylaxis during this time.

3. Case Study:(Clinical Procedure Coding Practice)

PREOPERATIVE DIAGNOSES:

1. Pelvic pain.

2. History of previous pelvic surgery and ovarian cyst.

POSTOPERATIVE DIAGNOSES:

1. Pelvic pain.

2. History of previous pelvic surgery and ovarian cyst.

OPERATION PERFORMED: Laparoscopic adhesiolysis.

SURGEON: Susan Smith, MD

ANESTHESIA: General endotracheal.

ESTIMATED BLOOD LOSS: Less than 10 mL.

URINE OUTPUT: 70 mL.

IV FLUIDS: 750 mL.

DESCRIPTION OF OPERATION: After informed consent was obtained, the patient was taken to the operating room. She was placed in the dorsal supine position and general anesthesia was induced and prepped and draped in the usual sterile fashion. A Foley catheter was placed to gravity and speculum was placed in the posterior and anterior vagina and the cervix was grasped with a single-toothed tenaculum. A Hulka clamp was then inserted through the cervix into the uterus for uterine manipulations and the tenaculum was removed and attention was then turned to the abdomen.

A supraumbilical incision was made with a scalpel and elevated up with towel clamps. A long Veress needle was then placed and CO2 gas was used to insufflate the abdomen and pelvis. A 10-12 trocar and sleeve were then placed and confirmed via the laparoscope. The dense greater omental adhesions to the anterior abdominal wall were noted immediately. At this time, we were not able to see into the pelvic region. A second 5 mm trocar and sleeve were placed in the left mid quadrant under direct visualization. The ligature device was then placed developing a plane between the omentum and the anterior abdominal wall.

The adhesiolysis took place and it took approximately 25 minutes to release all of the omental adhesions from the anterior abdominal wall. We were then able to visualize the pelvis and a blunt probe was placed through the port. The ovary was visualized and photos were taken with no evidence of any ovarian cyst or ovarian pathology or of pelvic endometriosis. The uterus also appeared normal and the left tube and ovary were surgically absent. The appendix was easily visualized and noted to be noninflamed, normal in appearance, and there were no adhesions in the right lower quadrant. The upper abdominal exam was unremarkable. The procedure was terminated at this time. The ports were removed. CO2 gas was allowed to escape. The incisions were closed with 4-0 Vicryl suture. The Hulka clamp was removed. The vagina was noted to be hemostatic. The patient’s anesthesia was awakened from anesthesia, the Foley catheter was removed, and she was taken in stable condition to the recovery room.

 
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Part A: STANDING WAVES ON A STRING Using PhET simulation

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Part A: STANDING WAVES ON A STRING Using PhET simulation

(Part A: STANDING WAVES ON A STRING Using PhET simulation) 12/27/2019

OBJECTIVE

To study standing waves on a string and see the effects of changing the tension in the string,

EQUIPMENT

PhET Simulation Wave on a String: https://phet.colorado.edu/en/simulation/wave-on-a-string

You can also reach this simulation by going to PhET, and looking for Wave on a String.

 

Theory: Standing Waves in Strings

For any wave with wavelength λ and frequency f, the speed, v, is

v = λf (1)

The speed of a wave on a string is also related to the tension in the string, T, and the linear density (=mass/length), μ, by

v2 = T/μ = λ2f2 (2)

L is the length of the string and n is the number of segments, antinodes, or harmonics. Since a segment is 1/2 wavelength then

λ = 2L/n where n = 1, 2, 3, … (3)

Solving Equation 2 for the tension yields:

T = μλ2f2 (4)

Which can also be written as:

(5)

PROCEDURE

Constant Tension

1. Open the software. Select: Oscillate, Amplitude = 0.10 cm, Damping = 0, Tension = Lowest, Fixed End.

2. Turn on the oscillator by pressing the large blue button with the arrow. You will see the wave going from left to right, hit the fixed end and reflect. The reflected waves will interfere with the waves going to the right.

3. Now adjust the frequency in the Signal Generator until you get a standing wave in one segment (i.e. the first harmonic). Note this frequency, and measure the wavelength by using the ruler tool. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

4. Increase the frequency gradually until you obtain a standing wave in the 2nd, 3rd, 4th, and 5th harmonic. Record each frequency and wavelength.

5. Calculate the wavelength by using equation (3).

6. Calculate the velocity of the waves by using equation (1)

7. Change the oscillator to Pulse. Keep the pulse width small. Measure the time taken by the pulse to travel from the left to the right ends, and hence calculate the velocity of the pulse in the string. Repeat three times and take the average. Use this value as a second value of the speed of the wave.

8. Calculate the percent difference between the two speeds.

Number of Harmonic

 

 

 

( n )

 Number of nodes Wavelength

λ = 2L/n

 

 

 

( m )

 Frequency

f

 

 

 

( Hz )

 Speed of wave

V = λ*f

 

 

( m/s )
1
2
3
4
5

9. Repeat for the other two available tensions of the string. Case A: Lowest Tension

DATA TABLE

Length of the string: _________

Speed of the wave

Trial number Time for pulse to reach other end Speed of the wave
Average speed of the wave

Length of the string: ____________

Case B: Medium Tension

Number of Harmonic

 

 

 

( n )

 Number of nodes Wavelength

λ = 2L/n

 

 

 

( m )

 Frequency

f

 

 

 

( Hz )

 Speed of wave

V = λ*f

 

 

( m/s )
1
2
3
4
5

 

Speed of the wave

Trial number Time for pulse to reach other end Speed of the wave
Average speed of the wave

 

Length of the string: ____________

Case C: Highest Tension

Number of Harmonic

 

 

 

( n )

 Number of nodes Wavelength

λ = 2L/n

 

 

 

( m )

 Frequency

f

 

 

 

( Hz )

 Speed of wave

V = λ*f

 

 

( m/s )
1
2
3
4
5

 

Speed of the wave

Trial number Time for pulse to reach other end Speed of the wave
Average speed of the wave

Part B E-39-0 Electric Charges and Electric Fields ONLINE

6-21-2020 Adapted from manual from Dr. Kam Chu

 

Objective

To study the electric field and electric potential around different charges.

 

Equipment

PhET Simulation:

https://phet.colorado.edu/sims/html/charges-and-fields/latest/charges-and-fields_en.html

 

Theory

There is an electric field surrounding a charge, in which another charge would experience an electric force. The strength of the electric field at a distance from a point charge is given by:

(1)

Where is the Coulomb Constant, q is the charge, and r is the distance from the charge. The unit vector points away from a positive charge, and towards a negative charge. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

 

The electric potential due to a point charge is given by the equation:

(2)

Where is the electric potential (in volts), and is a scalar quantity.

 

In this Lab, we will use a PhET simulation to study the electric field and electric potential surrounding single and multiple point charges.

 

Procedure

Play with the simulation (Charges and Fields) and get oriented with all the different options. This should help you understand the lab better. Note that you have positive and negative point charges, an electric field sensor (yellow circle), a tape measure and a voltmeter, that also makes the equipotential lines. For each case, take a screenshot and attach with your report. You may alsoturn on ‘gridlines’ if desired. Each small square of the grid is 10 cm wide and high. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

 

Activity 1: Electric Field Lines and Equipotential Lines

1: Have one positive and one negative charge placed symmetrically in the field. Get the Electric field lines. Use the voltmeter to draw about ten equipotential lines (Figure 1 shows a related situation with a few equipotential lines)

2: Repeat with both charges being negative.

3: Repeat with both charges being positive.

4. Repeat with 4 positive charges (on top of each other, to create 4q) and one negative charge.

5. Parallel Plates: Put a large number of positive charges in a straight row (to look like a solid line). Make a negative line in the same way (parallel to the first). As an example, see figure 2. Get the electric field lines and Equipotential Lines between and surrounding the parallel plates.

6. Attach screenshot of the simulations in your report. Figure – 1

Figure-1: Parallel “plates”. 

 

 

 

 

 

 

ACTIVITY 2

1) Turn on ‘gridlines’.

2) Select positive point charge of any magnitude (you do this by placing the point charges on top of each other). Place the charge at the intersection of two thick gridlines, somewhere in the left half of the screen.

3) Use the tape measure and Voltmeter to find the voltage at different locations along the horizontal line on which the charge is placed. Enter values in Table 1.

4) Plot a graph in Excel between the voltage (y-axis) and the distance (x-axis).

5) Use Excel to determine the value of the Coulomb Constant (see eqn. (2). Find the percent error between the calculated and accepted values.

6) Use the tape measure and the yellow Electric Field sensor to measure the electric field at different distances in the horizontal direction from the charge. Enter the data in Table 2.

7) Plot a graph in Excel between the Electric Field (on y-axis) and distance (on x-axis)

8) Use Excel to determine the value of the Coulomb Constant (see eqn. (1)). Find the percent error between the calculated and accepted values.

9) Attach the screenshots, graphs and calculations to your report. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

DATA

 

Table 1

Charge = _________

 

1 2 3 4 5 6 7
distance
voltage

 

 

Value of k found from the graph: ___________

Percent error in k: ________________

 

Table 2

Charge = __________

1 2 3 4 5 6 7
distance
Electric Field

 

 

Value of k found from the graph: ___________

 

Percent error in k: ________________

 

Part C E-35-O CAPACITORS IN CIRCUITS ONLINE LAB

7/1/2020

OBJECTIVES

The purpose of this lab will be to determine how capacitors behave in R-C circuits by measuring the time for charging and discharging. The manner in which capacitors combine will also be studied.

 

EQUIPMENT

PhET interactive simulation tool [Circuit Construction Kit: (AC+DC) – Virtual Lab]

https://phet.colorado.edu/en/simulation/legacy/circuit-construction-kit-ac-virtual-lab

 

PROCEDURE

1. Open the simulation by ctrl+click the link, or copy paste the link to the browser. The simulation should look like that shown in Fig.6

2. Since this simulation is in java (and not web based as some of the others), you may have to download the simulation. If you cannot run the simulation, you may need to follow the following PhET help guidelines: https://phet.colorado.edu/en/help-center/running-sims

Then click “Why can Irun some of the simulations but not all?”

3. Run the simulation, and you will see a page like that shown in Fig.7.

4. You would not set up the circuit. For assistance in setting up the circuit, see the manual: 00PhET Simulation Tool Instructions for Electric Circuits Labs.

5. This experiment requires you to measure the voltage as a function of time. The timer can be easily controlled by using the Pause/Play button (►) and/or the step button (|►) (these are at the bottom of the page).

 

 

 

 

 

 

 

 

Figure 6. Figure 7.

Case-A: charging the capacitor.

1. Set up the circuit as shown in figure 8. Once set up, it should look something like that shown in figure 9.

2. Set the resistance to 100 Ω, capacitance to 0.05 F, and Battery to 10.0 V.

3. Before charging the capacitor, make sure that it has no charge (the voltmeter reads zero). Otherwise you need to discharge the capacitor first until the voltage across the capacitor becomes zero. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

4. Put switch S1 in the ON state and switch S2 to the OFF state.

5. Set the Pause/Play button (►) to pause and the timer to zero. Before 5 seconds, use the step button (|►) to increase time by 0.5 second intervals and record the voltage values in Table I. After 5 seconds, use the Pause/Play button (►/||) to record the voltage at around 7.00, 10.0, 15.0, 20.0, and 25.0 seconds.

6. Using equation (5), obtain the charge at each time, and enter in Table 1.

7. Draw a graph between charge on y-axis and time on x-axis. It should look like Fig. 3.

8. Use the known values of resistance and capacitance to calculate the time constant and the maximum charge by using eqn. (2) and eqn. (3), and enter in Table 2.

9. Calculate the charges equal to one time constant, two time constants, and five time constants and enter in Table 2. Compare these with the experimental values using % error. Put your calculation in the table II.

C

 

 

Figure 8

 

 

 

Volt-meter

 

 

 

 

 

 

 

 

 

 

Figure 9.

 

Case-B: Discharging capacitor

1. Set up the circuit as shown in figure 8.

2. Set the resistance to 100 Ω, capacitance to 0.05 F, and Battery to 10.0 V.

3. Before discharging the capacitor, make sure the capacitor has been fully charged (the voltmeter reading is very close to 10.0 V).

4. Set switch to off and switch to on.

5. Set the Pause/Play button (►) to pause, and the stopwatch to zero. For time less than 5 seconds, use the step button (|►) to increase time by 0.5 second intervals. Record the voltage values in Table 3. After 5 seconds, use the Pause/Play button (►/||) to record the voltage at about 10.0, 15.0, 20.0, and 25.0 seconds.

6. Using equation (5), obtain the charge at each time, and enter in Table 3.

7. Draw a graph between charge on y-axis and time on x-axis. It should look like Fig. 5.

8. Use the known values of resistance and capacitance to calculate the time constant and the maximum charge by using eqn. (2) and eqn. (3), and enter in Table 4.

9. Calculate the charges equal to one time constant, two time constants, and five time constants and enter in Table 4. Compare these with the experimental values using % error. Put your calculation in the table II.

Case-C: Capacitors in Series.

1. Set up the circuit as shown in figure 10.

2. Set the resistance to 100 Ω, each capacitance to 0.05 F, and Battery to 10.0 V.

3. Before charging the capacitor, make sure that it has no charge (the voltmeter reads zero). Otherwise you need to discharge the capacitor first until the voltage across the capacitor becomes zero.

4. Put switch S1 in the ON state and switch S2 to the OFF state.

5. Now calculate the value of the time constant by using the equation for sum of capacitors in series.

6. Start charging the capacitors and note the voltage difference across both capacitors. Note the time it takes for the voltage to reach 63.2 % of Vmax. This is the measured value of time constant. Note this in Table 5.

7. Now charge the capacitors to full charge, and by using proper switching, measure the time for the voltage across them to fall BY 63.2% of Vmax. This is the measured time constant for discharging the capacitors.

8. Compare the measured and calculated values of the time constant for capacitors in series. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

 

 

 

 

Figure 11

 

 

Volt-meter

 

 

 

 

C1

C2

Volt-meter

 

 

C2

C1

 

 

 

 

 

 

 

Figure 10

 

 

Case-D: Capacitors in parallel.

1. Set up the circuit as shown in figure 11.

2. Set the resistance to 100 Ω, each capacitance to 0.05 F, and Battery to 10.0 V.

3. Repeat the steps needed to measure the time constant while charging and while discharging, and compare with the calculated value for capacitors in parallel.

4. Enter the results in Table 5.

 

DATA

Case-A: Data for charging a single capacitor

 

Table-1

Resistance R = _________ Capacitance C = ________

 

Time

(s)

 Measured Voltage (VC) Charge on Capacitor

q(t)

(eqn. (5)

 Time (s) Measured Voltage (VC) Charge on Capacitor q(t)

(eqn. (5)

 Time (s) Measured Voltage (VC) Charge on Capacitor q(t)

(eqn. (5)
0.50 3.00 7.00
1.00 3.50 10.0
1.50 4.00 15.0
2.00 4.50 20.0
2.50 5.00 25.0

 

 

Make a graph between q(t) and time.

 

Table 2

 

Maximum Charge from eqn (2) = Q = ___________

RC time constant from eqn (3) = τ = ___________

 

Calculated value

eqn (1)

 Experimental value

eqn (5)

 % error
Charge at t = 1 τ
Charge at t = 2 τ
Charge at t = 3 τ

 

 

 

Case-B: Data for Discharging a single capacitor

 

Table-3

Resistance R = _________ Capacitance C = ________

 

Time

(s)

 Measured Voltage (VC) Charge on Capacitor

q(t)

(eqn. (5)

 Time (s) Measured Voltage (VC) Charge on Capacitor q(t)

(eqn. (5)

 Time (s) Measured Voltage (VC) Charge on Capacitor q(t)

(eqn. (5)
0.50 3.00 7.00
1.00 3.50 10.0
1.50 4.00 15.0
2.00 4.50 20.0
2.50 5.00 25.0

 

 

Make a graph between q(t) and time.

 

 

Table 4

 

Maximum Charge from eqn (2) = Q = ___________

RC time constant from eqn (3) = τ = ___________

 

Calculated value

eqn (4)

 Experimental value

eqn (5)

 % error
Charge at t = 1 τ
Charge at t = 2 τ
Charge at t = 3 τ

 

 

 

Case C and D: Data for Two Capacitors in Series and Parallel:

 

Table 5:

Resistance: ____________ Capacitance 1: _____________ Capacitance 2: _____________

 

Type of Circuit

Capacitors in:

 Calculated values of

τC and τD

 Measured Charging time τC Measured Discharging time τD Percent error in time of charging Percent error in time of discharging
Series
Parallel

 

 

τC : Time constant for charging

τD : Time constant for discharging

 

Part D Lab 2 Ohm’s Law

 

Objective

Learn to build a simple circuit with one resistor and one DC source.

Use PhET interactive simulation tool (Circuit Construction Kit AC Prototype) to build circuits and verify Ohm’s Law.

Theory

Ohm’s Law states that the electric current passing through a resistor with resistance is proportional to the voltage (electric potential difference) across the resistor and inversely proportional to the resistance

 

Equipment

Ⓐ

 

 

 

Figure-1

PhET interactive simulation tool (Circuit Construction Kit: DC – Virtual Lab)

https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc-virtual-lab

For guidance on how to use the simulation, tool, see PhET Simulation Tool Instructions for Electric Circuits Labs.

 

Procedures

1. Build the circuit as shown in Figure 1 using the PhET Simulation Tool.

2. Set the DC Power Source to 12.0 V.

3. Create three resistors 10.0 Ω, 20.0 Ω, and 30.0 Ω. Putting each resistor into the circuit one at a time, measure voltage using the voltmeter and record the values on Table 1. Note that the volt-meter should be parallel with the resistor.

4. With the power source still set at 12.0 V, measure the current of each resistor and record the values on Table 1. The ammeter should be in series with the resistor. You must first cut the circuit and open it with two disconnected ends and then plug in the ammeter. Please refer to “PhET Simulation Tool Instructions for Electric Circuits Labs” for how to measure current.

5. Avoid the common mistake of connecting the ammeter directly to the power supply’s two terminals.

6. Compare the calculated and measured currents in Table 1 and find the percentage difference.

7. Put the 10.0 Ω resistor in the circuit and increase the voltage of the power supply from to using increments. Using the method outlined in step 4, measure the current at each step. Record the voltage and current values in Table 2.

8. Plot the voltage-current curve and find the slope of the line. The slope of the line will be the resistance.

9. Compare the measured with the known values of the resistance values and find the percentage error.

 

In you report, include screenshots of the circuits that you make for doing this Lab. (Part A: STANDING WAVES ON A STRING Using PhET simulation)

Data Table 1

DC Power Source: 12.0 V

 

Resistance Measured Voltage Calculated Current (Equation 1) Measured Current % difference in the current
10.0 Ω
20.0 Ω
30.0 Ω

 

 

Data Table 2

Resistance: 10.0 Ω

 

Voltage

(volt)

 Measured Current

(ampere)

 Slope (equals resistance)

(ohm)

 % error in resistance
1.00 V
2.00 V
3.00 V
4.00 V
5.00 V

 

 

Part E Series and Parallel Circuit

(Using PhET Simulation Tool)

Objective

1. Learn to build up series circuit and a parallel circuit with three resisters.

2. Use PhET interactive simulation tool (Circuit Construction Kit AC Prototype) to build the circuits and Verify Ohm’s Law

Theory

The relations for two resisters in series and parallel circuits are the following:

Series Circuit Parallel Circuit

 

 

 

 
 

 

 

  

 

 
 

 

 

 

 

 

 

 

 

 

 

 

Figure 1 Two resister in series

  

 

 

 

 

 

 

 

 

Figure 2 Two resister in parallel

 

Equipment

PhET interactive simulation tool (Circuit Construction Kit: DC – Virtual Lab)

https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc-virtual-lab

 

Procedures

 

Build the circuit as shown in Figure 1 by using PhET Simulation Tool

 

1. Click the above http link, you will see

 

2. Click ▲, you will see

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Now you build your circuit by using “wire”, “Battery” and “Resistor”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. You can tap the circuit elements to change it value by adjust

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. You can also toggle between the battery and the battery symbol as shown above.

6. Use the circuit board, build the series circuit by using three resisters as shown in the following figure 3: set up , , ,

 

 

 

 

 

Figure 3

 

 

 

7. Measure the voltage across each resister, the voltage across over the two and (resister) and the voltage across over all the resisters (). Record the values on the table 1.

 

How to use the circuit board tool Voltmeter to measure the voltage

 

Simple drag the Voltmeter to the necessary location as shown in the following figure.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8. Using Ohm’s law calculate the currents for each resister and put the values on table 1.

9. Using circuit board tool Ammeters measure the current passing through each resister and record the values on the table 1. Note that the Ammeters should be in series with the resister. (The figure below show you how to cut a circuit open and then put the Ammeters)

 

 

 

 

 

 

 

 

 

 

 

 

10. Compare the current in table 1, and find the percentage difference.

11. Use the circuit board, build the parallel circuit by using three resisters as shown in the following figure 4.

 

 

 

 

 

 

 

 

 

 

Figure 4

 

 

 

 

12. Repeat procedures from 7 to 10, record the data in table 1, and find the percentage difference.

 

Data Table 1

Resistance: :___________ :____________ :____________

 

Series Parallel
Measured Voltage  

(Ohm law)

 Measured Current % difference Measured Voltage  

(Ohm law)

 Measured Current % difference

 

 

Your Lab Report Should Include the Following

 

1. Lab theory

2. Your build circuit photo

3. Procedures

4. Your circuit setup photo which shows voltage [across the two and (resister)] measurement; and circuit setup photo which shows current [pass through the two resistor and (resister)] measurement.

5. Data Table 1

6. Conclusion

Part F Combination of Series and Parallel Circuit

(Using PhET Simulation Tool)

Objective

3. Learn to build up a combination of series and parallel circuit with three resisters.

4. Use PhET interactive simulation tool (Circuit Construction Kit AC Prototype) to build the circuits and Verify Ohm’s Law

 

Theory

Combination of Series and Parallel Circuit
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 1 Two resister in series

  

 

 
 

 

 

 

 

Equipment

PhET interactive simulation tool (Circuit Construction Kit: DC – Virtual Lab)

https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc-virtual-lab

 

Procedures

 

Build the circuit as shown in Figure 1 by using PhET Simulation Tool

 

13. Click the above http link, you will see

 

14. Click ▲, you will see

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15. Now you can build your circuit by using “wire”, “Battery” and “Resistor”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16. You can tap the circuit elements to change it value by adjust

 

 

 

 

 

 

 

 

 

 

 

 

17. You can also toggle between the battery and the battery symbol as shown above.

18. Use the circuit board, build a combination of series and parallel circuit by using three resisters as shown in the following figure 2: set up , , ,

 

 

 

 

 

 

Figure 2

 

 

 

19. Measure the voltage across each resister, and the voltage across over the two and (resister) Record the values on the table 1.

 

How to use the circuit board tool Voltmeter to measure the voltage

 

Simple drag the Voltmeter to the necessary location as shown in the following figure.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20. Using Ohm’s law calculate the currents for each resister and put the values on table 1.

21. Using circuit board tool Ammeters measure the current passing through each resister, and the current going through the two and (resister). Record the values on the table 1. Note that the Ammeters should be in series with the resister. (The figure below show you how to cut a circuit open and then put the Ammeters)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22. Compare measured current in column 3 and calculated current in column 4 in the table 1, and find the percentage error.

 

Data Table 1

 

Resistance: :___________ :____________ :____________

 

 

1 2 3 4 5
Measured Voltage Calculated Current

(Using Ohm’s Law)

 Measured Current Calculated Current

(Using Equation 1-6)

 % error (compare column 3 and 4)

 

 

Your Lab Report Should Include the Following

 

7. Lab theory

8. Your build circuit photo

9. Procedures

10. Your circuit setup photo which shows voltage [across the two and (resister)] measurement; and circuit setup photo which shows current [pass through the two resistor and (resister) measurement.

11. Data Table 1

12. Calculation details in column 4

13. Conclusion

 

Part G E-34-O KIRCHHOFF’S RULES ONLINE LAB

7/01/2020

 

OBJECTIVE

The purpose of this lab will be to experimentally demonstrate Kirchhoff’s Rules for electrical circuits.

 

EQUIPMENT

PhET interactive simulation tool (Circuit Construction Kit: DC – Virtual Lab):

https://phet.colorado.edu/en/simulation/circuit-construction-kit-dc-virtual-lab

For an introduction on using the PhET Circuit Construction simulation, see: 00-PhET Simulation Tool instructions for Electric Circuits Labs.

 

THEORY (Part A: STANDING WAVES ON A STRING Using PhET simulation)

Electronic circuits that cannot be reduced to simple series of parallel circuits can be analyzed by different methods. As an example, consider the circuit of figure 1. The currents and voltage drops across the resistances cannot be found by a simple application of Ohm’s Law. In this circuit, points A and D are called Junctions, since more than two wires connect there. A closed loop is any path that starts at some point in the circuit, passes through the elements of the circuit, and arrives back at the same point, without passing through any element more than once. There are three such closed loops in the circuit of Figure 1. These are Loop 1: A-B-C-D-A, Loop 2: A-D-E-F-G-A, and Loop 3: B-C-D-E-F-G-A-B. The junctions and loops are used in two Kirchhoff’s rules to analyze the circuit.

KCR- Kirchhoff’s Current Rule: The sum of the currents entering a junction = sum of currents leaving a junction. Or equivalently: the net current entering a junction is zero.

KVR-Kirchhoff’s Voltage Rule: The algebraic sum of the voltage changes around any closed loop is zero.

We would usually know the values of the battery voltages and resistances. As a first step, we label and assign directions (arbitrarily) to the currents in each section of the circuit (i.e. between each junction). We then write the junction equation (assuming a current entering the junction is positive, and leaving the junction is negative) at node D as:

i1 + i3 – i2 = 0 (1)

We now traverse the closed loops in any direction (clockwise or counter-clockwise, the resulting equations are equivalent) and add up all the changes in the voltages and set them to zero, i.e.

ΣΔV = 0 (2)

The voltage change across a resistor is found by Ohm’s Law as

ΔV = I R (3)

The sign of ΔV is positive if we are crossing the resistance in a direction that is against the direction of the current in that resistor, and it is negative if we go across the resistor in the same direction as the current. The ΔV across the battery is positive if we cross it from its negative to its positive side. With these, the equations for the three loops become:

Loop 1 (starting at the point A and going clockwise):

V1 – i1*R1 – i1*R2 + i3*R3 = 0.0 (4)

 

Loop 2 (starting at A and going clockwise):

-i3*R3 – i2*R4 + V2 – i2*R5 = 0.0 (5)

Loop 3 (starting at A, and going clockwise):

+V1 – i1*R1 – i1*R2 – i2*R4 + V2 – i2*R5 = 0.0 (6)

Note that equation (6) is simply the sum of equations (4) and (5), and is therefore not an independent equation. The same would apply to the junction rule applied at node A. So the useful (or independent) number of Junction equations that we can use are one less than the number of junctions, and the Loop equations are one less than the number of loops.

We then simultaneously solve equation (1) and any two out of equations (4), (5) and (6) to obtain the values of the currents i1, i2 and i3. In case any of the currents comes out to be negative, it simply means that we had choses then wrong direction for that current.

 

 

 

 

 

 

 

 

 

 

PROCEDURE (Part A: STANDING WAVES ON A STRING Using PhET simulation)

1 Select five resistors and measure and note their resistances. Label them as R1, R2, … , R5. Select resistors that are in the range of 10.0 Ω to 100.0 Ω.

2 Connect the resistors on the PhET simulation to make the circuit as shown in Figure 1. Attach the two batteries to appropriate points on the circuit. Set their voltages between 6.0 to 10.0 volts each. (The two voltages may or may not be the same). Note the positions of the resistors R1, R2, … R5. Measure the voltages across the batteries and note these as V1 and V2 in the Data Sheet.

3 Using the values of the resistances and battery voltages, calculate the currents i1, i2 and i3 by using the two Kirchhoff’s Rules. Use the same notation and directions of the currents as used in Figure 1. Use the calculated currents to calculate the potential difference across each resistor by using Ohm’s Law.

4 Once the calculations are done, you have an idea of what values to expect. First measure the voltages across each of the resistors and note it.

5 Now measure the currents i1, i2 and i3. For this you would need to break the circuit and insert the ammeter in series with the wires to complete the loop.

6 Calculate the percent errors in the calculated and measured values of the currents and voltages. Check to see if the Kirchhoff’s Junction rule and Loop Rules are verified.

 

DATASHEET: KIRCHHOFF’S RULES

 

 

V1 =
V2 =

 

 

 

RESISTANCE CURRENT VOLTAGE
CALCULATED MEASURED % ERROR CALCULATED MEASURED % ERROR
R1 =
R2 =
R3 =
R4 =
R5 =

 

 

 

Part H: Geometrical Optics Using PhET SIMULATIONS (Part A: STANDING WAVES ON A STRING Using PhET simulation)

Rev 3-14-2020

 

OBJECTIVE

To study the reflection of light on flat and curved surfaces, and refraction of light though different shapes, and to find the focal length of a convex lens.

 

EQUIPMENT

PhET simulation Bending Light: https://phet.colorado.edu/en/simulation/bending-light

 

PhET simulation Geometric Optics: https://phet.colorado.edu/en/simulation/legacy/geometric-optics

 

You can also get to the simulations by entering in your browser: Phet, then select Physics. Then select Bending Light, and Geometric Optics simulations.

 

PROCEDURE (Part A: STANDING WAVES ON A STRING Using PhET simulation)

The procedure for all experiments will be to track a laser beam as it reflects or refracts. In the simulations that we will use, we have a laser that can be turned on or off by clicking the red button on it. It can also be moved and rotated. The laser will give a narrow ray of light which we will follow as it reflects or refracts. This can be done for several points in the beam’s path.

 

In most cases, you would need to measure the angle, which is done from the normal to the surface. You can turn on the normal by selecting it in one of the menu boxes on the page. You can measure the angle by using the protractor tool. Complete the Results section at the end.

 

CASE A: Reflection from a Plane Mirror (see figure 1)

1. After opening the simulation, select “INTRO”.

2. Select the material where the laser is as “AIR”, and that on the lower side as “WATER”.

3. Set the laser to any arbitrary angle. Turn on the laser.

4. Use the Protractor to measure the angle of the incident ray and angle of the reflected ray (this is dimmer than the incident ray). (ignore the ray going into the water). Repeat for different angles.

5. Repeat for AIR and GLASS as the materials.

6. Enter the results in Table A, and verify that the angle of incidence = angle of reflection.

CASE B: Refraction (see figure 2)

1. After opening the simulation, select “INTRO”.

2. Select the material where the laser is as “AIR”, and that on the lower side as “WATER”.

3. Set the laser to any arbitrary angle. Turn on the laser.

4. Use the Protractor to measure the angle of the incident ray and angle of the refracted ray (i.e. the one entering the water). (ignore the reflected ray). Repeat for different angles.

5. Repeat for AIR and GLASS as the materials.

6. Repeat with AIR and MYSTERY A as the two materials.

7. Enter the results in Table B, and calculate the refractive indices of water, glass and Mystery A by using equation 1.

 

CASE C: Refraction Again (see figure 7)

1. After opening the simulation, select “PRISM”.

2. From the bottom panel, select the Square. Set Reflections Off. Turn on Normal.

3. Select the Environment as AIR. Select Objects as GLASS.

4. Set the laser to any arbitrary angle, pointing to the square. Turn on the laser.

5. Use the Protractor to measure the angle of the incident ray and angle of the refracted ray (i.e. the one entering and inside the square). Make sure that the ray inside the square does not reflect form the side surface.

6. Use these angles to calculate the refractive index of the material by using equation 1. Repeat with different angles.

7. Repeat for MYSTERY B as the material of the square.

8. Enter the results in Table C.

CASE D: Total Internal Reflection (Part A: STANDING WAVES ON A STRING Using PhET simulation)

1. After opening the simulation, select “INTRO”.

2. Select the material where the laser is as “WATER”, and that on the lower side as “AIR” (i.e. the laser beam is going from water into air)

3. Set the laser to a small angle (i.e. close to the normal). Turn on the laser.

4. Increase the angle slowly and observe the refracted ray. At some angle, the refracted ray will become parallel to the water-air surface. Beyond this point, when the angle is further increased, there is no refracted ray, only a reflected ray. This is Total Internal Reflection. The angle that the incident ray makes at the point at which the refracted ray becomes parallel to the glass surface (i.e. angle of refraction = 90), is called the Critical Angle. Use the Protractor to measure the angle of incidence at this point. Use equation 3 to compare the calculated and measured values of the Critical Angle.

5. Repeat to find the critical angle for the GLASS – AIR interface.

6. Enter the results in Table D.

 

CASE E: Total Internal Reflection Again (see figure 6)

1. After opening the simulation, select “PRISM”.

2. Select the semi-circular object, and bring it to the middle of the screen. Its straight side should be vertical.

3. Select the Environment as Air, and semi-circular object as Glass. Turn on Normal. Turn off Reflections.

4. Turn on the laser. Set the laser to an angle about 40° with the horizontal.

5. Now place the cursor in the object, with left click hold the object and move it (it should not rotate) to a position so that the laser beam entering it is at zero degrees to the surface. This is when the beam is directly over (i.e. parallel to) the normal. It will now be exiting the object from center of the flat side, which is also the center of the circle forming the curved side. Now rotate the Object by holding it from the little thing at its bottom. The object must not move, only rotate. This will rotate it about its center so that the beam is always exiting from the center of the flat side.

6. Keep rotating the object slowly, until the exiting beam is parallel to the flat surface. If you turn it a bit more, the beam will have Total Internal Reflection. Use the protractor to measure the angle on incidence inside the object at the flat surface at the point of Total Internal Reflection. The angle of refraction should be 90°. Use equation 3 to compare the calculated and measured values of the Critical Angle.

7. Repeat for Mystery A. Use the refractive Index found in Case B for calculating the percent error.

8. Enter the results in Table E.

 

CASE F: Refraction Light Ray Shift (see figure 7)

1. After opening the simulation, select “PRISM”.

2. From the bottom panel, select the Square. Set Reflections Off. Turn on Normal.

3. Select the Environment as Air. Select Objects as Glass.

4. Set the laser to any arbitrary angle, pointing to the square. Turn on the laser. The laser beam should come out from the back side.

5. Note (figure out how), the position of the refracted ray coming out of the glass on the other side.

6. Change the material of the Object to “Air”. This will cause the ray to go straight (since refractive indices of environment and square are the same). Note the position of this ray.

7. Measure the distance that the ray shifts when the Object is Air and when it is Glass (figure out how to do this). Enter the results in Table 6.

8. Measure the thickness of the square. Enter all data in Table F.

9. Use equation 6 to calculate the shift, and compare with your measured value.

h

d

 

(6)

 

CASE G: Deviation of light by a prism (see figure 3)

1. After opening the simulation, select “PRISM”.

2. From the bottom panel, select the Triangle (prism). Set Reflections Off. Turn on Normal.

3. Select the Environment as Air. Select Objects as Glass.

4. Set the laser to any arbitrary angle, pointing to the prism. Turn on the laser. The laser beam should come out from the other side.

5. Use the protractor to measure the angle of incidence θi , angle of refraction θr, angle of the prism A , and angle of Deviation δ, and record them in Table G.

6. Calculate the angle of deviation by using equation (4), and compare with measured value. Use the refractive index of glass found in Case C.

 

CASE H: Focal Length of a Convex Lens (see figure 4) (Part A: STANDING WAVES ON A STRING Using PhET simulation)

1. Open the simulation: Geometric Optics.

2. Select Principal Rays and Screen. Select some values of Curvature, Refractive Index and Diameter of the lens.

3. Place the lamp al some position on the principal Axis (the horizontal line passing through the center of the lens).

4. Move the screen until the image becomes a small dot. The image of the object is now in focus on the screen.

5. Select the Ruler, and measure the distance from the center of the lens to the light source. (Measure to the point where the rays join together). This is the Object distance ‘p’. Now measure the image distance ‘q’ from the lens to the screen (to the point where the rays join). You may have to select a pencil or an arrow as the object to do this.

6. Note the data in Table H, and calculate the focal length, ‘f’, of the lens.

7. Repeat for several different positions of the object. Have at least one position where you get a virtual image (i.e. when object is between lens and the focal length).

8. Measure the focal length (this is the distance from lens to the ‘X’ on the Principal Axis.

RESULTS

All values are measured values unless mentioned. Attach at least one image of each case with your report.

 

TABLE A: LAW OF REFLECTION

Trial number Angle of Incidence Angle of Reflection Percent Difference

 

TABLE B: LAW OF REFRACTION (Part A: STANDING WAVES ON A STRING Using PhET simulation)

Material Trial number Angle of Incidence Angle of Refraction Refractive Index (equation 1) Average of three values Percent Error in refractive index
Water
Water
Water
Glass
Glass
Glass
Mystery A
Mystery A
Mystery A

TABLE C: LAW OF REFRACTION AGAIN

Material Trial number Angle of Incidence Angle of Refraction Refractive Index (equation 1) Average of three values Percent Error in refractive index
Glass
Glass
Glass
Mystery B
Mystery B
Mystery B

TABLE D: TOTAL INTERNAL REFLECTION

 

Material Trial number Angle of Incidence Angle of Refraction Critical Angle

Calculated

 Percent Error in Critical Angle
Water-Air
Glass-Air

 

 

 

TABLE E: TOTAL INTERNAL REFLECTION AGAIN

 

Material Trial number Angle of Incidence Angle of Refraction Critical Angle

Calculated

 Percent Error in Critical Angle
Water-Air
Mystery-Air

 

 

TABLE F: REFRACTION LIGHT RAY SHIFT

Trial Number Angle of Incidence Angle of Refraction Thickness ‘h’ of the square Measured Value of Shift in the Ray Calculated Value of the Shift Percent error in shift

 

TABLE G: DEVIATION OF LIGTH FROM A PRISM

Trial Number Angle of Incidence Angle of Refraction Angle of Prism Angle of Deviation Calculated Angle of Deviation Percent error in angle of Deviation
No Distance from Lens to Object

p

 Distance from Lens to Image

q

 Calculated Focal Length by equation 1

f
Average value of Focal Length
Percent error

TABLE H: FOCAL LENGTH OF A CONVEX LENS (Part A: STANDING WAVES ON A STRING Using PhET simulation)

 
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Ethical Conduct

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Ethical Conduct

(Ethical Conduct) Discuss nursing ethics based on the case study.

Ethical Conduct

Nursing Ethics in the Context of a Case Study

Nursing ethics is crucial in ensuring that patient care aligns with moral principles. A recent case study highlights the importance of ethical considerations in nursing. In this case, a nurse faced a dilemma when a terminally ill patient requested assistance in ending their life. This situation presents various ethical challenges, requiring a thorough understanding of nursing ethics to navigate effectively.

Respect for Autonomy

Firstly, respect for autonomy is a fundamental ethical principle in nursing. Autonomy refers to the patient’s right to make decisions about their own health care. In the case study, the patient expressed a clear desire to end their suffering through euthanasia. Therefore, the nurse must respect this wish while considering legal and professional boundaries. To support the patient’s autonomy, the nurse should ensure the patient fully understands their options and the potential consequences of their decision. (Ethical Conduct)

Beneficence and Non-Maleficence

Beneficence and non-maleficence are also critical in nursing ethics. Beneficence involves promoting the patient’s well-being, while non-maleficence means avoiding harm. In the case study, the nurse faces a conflict between these principles. Assisting the patient in ending their life may be seen as promoting well-being by alleviating suffering. However, it also involves causing harm. The nurse must carefully weigh these principles to determine the best course of action.

Legal and Professional Considerations

Legal and professional considerations also play a significant role in nursing ethics. The nurse must adhere to the laws and regulations governing their practice. In many jurisdictions, euthanasia is illegal, and assisting a patient in ending their life could result in severe legal consequences. Moreover, professional codes of ethics, such as the American Nurses Association’s Code of Ethics, provide guidelines for nurses. These codes often emphasize the importance of preserving life and prohibit actions that intentionally cause death. Thus, the nurse must balance ethical principles with legal and professional obligations. (Ethical Conduct)

Communication and Compassion

Effective communication and compassion are essential in addressing ethical dilemmas. The nurse should engage in open, honest conversations with the patient and their family. This approach helps to understand their perspectives and provide emotional support. By listening to the patient’s concerns and explaining the ethical and legal constraints, the nurse can build trust and provide compassionate care. Additionally, involving other healthcare professionals, such as physicians and ethicists, can offer valuable insights and support in decision-making.

Ethical Decision-Making Frameworks

Applying ethical decision-making frameworks can guide nurses in resolving complex ethical dilemmas. One such framework is the Four-Box Method, which considers medical indications, patient preferences, quality of life, and contextual features. By systematically evaluating these factors, the nurse can make a well-informed decision. In the case study, this approach could help balance the patient’s desire for euthanasia with the ethical, legal, and professional considerations involved.

Conclusion

Nursing ethics require a careful balance of respecting patient autonomy, promoting well-being, avoiding harm, and adhering to legal and professional standards. In the presented case study, the nurse faces a challenging ethical dilemma when a terminally ill patient requests assistance in ending their life. By applying ethical principles, effective communication, and decision-making frameworks, the nurse can navigate this complex situation. This approach ensures that patient care remains compassionate, ethical, and legally compliant.

References

https://www.nursingworld.org/practice-policy/nursing-excellence/ethics/code-of-ethics-for-nurses/

 
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