Overview

This module we will look at both the Challenger crash that happened in 1986 and the Columbia crash that happened 17 years later. What you will do in this module is pick one of these crashes and analyze it using a Fault tree analysis. Watch both videos first, then decide which crash you want to focus on. Then read the rest of the information for the crash you want to use to accomplish your case study. Be advised, the discussion topic this week will discuss some issues from both of these crashes so you will need to be familiar with some of the issues that occurred in both.

 Videos

First, view the following videos:

Challenger:

• Challenger Disaster Live on CNN (2:23 – YouTube) (Links to an external site.)
• Challenger Accident Investigation (1986) (44:45 – YouTube) (Links to an external site.)
  • This NASA video is almost 45 minutes, but the analysis starts at 15:00 minutes if you want to fast forward to that point. Click the picture to link to YouTube for video.

Columbia:

• Seconds from Disaster, Season 2, Episode 1, Columbia’s Last Flight (50:10 – Alexander Street via the Hunt Library) (Links to an external site.) 
  • This excellent video analysis of the crash of the Space Shuttle Columbia is about 50 minutes long. However, the analysis portion starts at 23:54 if you want to fast forward to that point.

 Readings

Second, read the following sources:

Challenger:

Chapters 4 and 6 of the Presidential Commission Report, also known as the Rogers Report, on the Challenger accident (NASA).

• Chapter IV: The Cause of the Accident (Links to an external site.)
• Chapter VI: An Accident Rooted in History (Links to an external site.)

Columbia:

Read the parts of the Columbia accident investigation that are applicable to your project. Chapter 2 is the flight sequence. Chapter 3 is the accident analysis. Chapters 5 – 7 discuss the issues at NASA and compare some of the issues between the Columbia crash and the Challenger crash.

Columbia Accident Investigation Board: Report, Vol. 1 (Links to an external site.) (Alexander Street via the Hunt Library)

Assignment Instructions

If you chose the Challenger crash accomplish the following:

Based upon the things you have read and watched on the causes of the Challenger explosion and your own thoughts on what may have contributed it, put yourself in the shoes of the engineering team developing the O-rings for the SRBs. Construct a fault tree analysis of the O-ring construction, keeping in mind the possibilities of temperature changes and other weather considerations.

If you chose the Columbia Crash:

Based on the things you have read and watched on the causes of the Columbia reentry explosion and your own thoughts on what may have contributed to it, put yourself in the shoes of the engineering team developing the foam construction on the main fuel tank of the launcher. Construct a fault tree of the fuel tank foam construction, keeping in mind the possibility of foam coming off during the launch and any other considerations you may deem important such as temperature, weather, or vibration.

From your fault tree, draw conclusions in the form of a one to two page summary about the risks you found, their criticality based upon the risk assessment matrix, and probable ways to mitigate the risks that your fault tree showed. Your summary should include an actual fault tree, showing correct transition gates, and a short narrative of the analysis. If you are unable to get a computer program that will draw the gates correctly, it is OK to hand draw the fault tree out legibly and scan it in for submission. Sometimes it is more important to get the information to the boss quickly as opposed to spending the time finding a computer to build it on. As always, if you need to do more research to accomplish this task, feel free. Just be sure to cite your sources accordingly.

This assignment has two requirements that must be completed. The first is a fault tree presenting the data you selected to analyze (an example is found in the Ericson text). The second is a short narrative to the boss telling them why the items you show in your chart are important and need to be addressed. Both of these must be turned in for this case study.

  

Corporate governance has become a hot issue in the U.S. over the past two decades.  From your analysis of the case study, determine two possible corporate governance challenges that might be faced by Best Buy as a result of its rapid growth and why they could become corporate governance issues.

  

Make recommendations for how Best Buy can overcome these challenges. Provide specific examples to support your response.

For the final reflection paper, we want you to review the Discussions and Reflection Papers you’ve created throughout the semester.  Pretend that you have a friend who is interested in taking HUM 1020 online.  Compose an email where you explain your experience with the course and what you learned throughout the semester.  What connections did you make that seemed interesting?  What readings really made good points that you found helpful.  What did you struggle with?  What might you tell your friend to be sure and spend extra time on?  Why?

Your email should be no more than two double spaced pages.  Be sure to give specific examples from the course and from your own writing this semester.

No plagiarizing

Down below are my reflections through out the course

    UTERINE FIBROIDS

Preparing the assignment 

Follow these guidelines when completing this assignment. Speak with your faculty member if you have questions. 

1. 1)  Select a disease process that interests you.
    
2. 2)  Obtain approval of the selected disease process from the course faculty.
    

a. Faculty will share how to submit your topic choice for approval. 

1. 3)  Write a 2‐3 page paper (excluding title and reference pages).
    
2. 4)  Include the following sections about the selected disease process (detailed criteria listed below and in the Grading
   Rubric).
    
   1. Introduction of disease ‐ 20 points/20%
       
      • One paragraph (approximately 200 words)
         
      • Includes disease description
         
      • Includes epidemiology of disease
         
   2. Etiology and risk factors ‐ 20 points/20%
       
      • Common causes of the disease or condition
         
      • Risk factors for the disease or condition
         
      • Impact of age
         
      • Prevalence based on gender,
         
      • Influence of environment
         
      • Genetic basis of disease
         
      • Lifestyle influences
         
      • All information supported by current literature
         
   3. Pathophysiological processes ‐ 20 points/20%
       
      • Describes changes occurring at the cellular, tissue, and/or organ level that contribute to the disease
        process.
         
      • Describes adaptation of the cells and body in response to the disease.
         
      • Relates disease processes to manifested signs and symptoms.
         
   4. Clinical manifestations and complications ‐ 20 points/20%
       
      • Describes the physical signs and symptoms that are important in considering the presence of the disease.
         
      • Identifies signs that contribute to diagnosis of the condition
         
      • Identifies symptoms that contribute to diagnosis of the condition.
         
      • Identifies complications of the disease.
         
      • Discusses the implications to the patient when complications are left untreated.
         
   5. Diagnostics ‐ 10 points/10%
       

• Includes list of common laboratory and diagnostic tests used to determine the presence of the disease.

RUA: Pathophysiological Processes Guidelines 

• Discusses the significance of test findings in relation to the disease process. f. APA Style and Organization ‐ 10 points/10% 

• References are submitted with assignment.
   
• Uses appropriate APA format (6th ed.) and is free of errors.
   
• Grammar and mechanics are free of errors.
   
• Paper is 2‐3 pages, excluding title and reference pages
   
• At least two (2) scholarly, primary sources from the last 5 years, excluding the textbook, are provided
  For writing assistance (APA, formatting, or grammar) visit the Citation and Writing Assistance: Writing Papers at CU page in the online library.
   

Grading Rubric 

 

(20 points/20%) 

 

Required criteria 

Includes no fewer than 3 requirements for section. 

Includes no fewer than 2 requirements for section. 

Includes no less than 1 requirement for section. 

Present, yet includes no required criteria. 

No requirements for this section presented. 

 

1. One (approximately 200 words) paragraph
    
2. Includes disease description
    
3. Includes epidemiology of disease
    

 

Etiology and Risk Factors 

20 points 

18 points 

16 points 

7 points 

0 points 

 

(20 points/20%) 

 

Criteria are met when the student’s application of knowledge within the paper demonstrates achievement of the outcomes for this assignment. 

 

Assignment Section and
Required Criteria
(Points possible/% of total points available) 

Highest Level of Performance 

High Level of Performance 

Satisfactory Level of Performance 

Unsatisfactory Level of Performance 

Section not present in paper 

 

Introduction of Disease 

20 points 

18 points 

16 points 

7 points 

0 points 

 

Required criteria 

Includes no fewer than 8 requirements for section. 

Includes no fewer than 7 requirements for section. 

Includes no fewer than 6 requirements for section. 

Includes 5 or fewer requirements for section. 

No requirements for this section presented. 

 

1. Common causes of the disease or condition
    
2. Risk factors for the disease or condition
    
3. Impact of age
    
4. Prevalence based on gender
    

 

1. Influence of environment
    
2. Genetic basis of disease
    
3. Lifestyle influences
    
4. All information supported by current literature
    

 

Pathophysiological Processes 

20 points 

18 points 

16 points 

7 points 

0 points 

 

(20 points/20%) 

 

Required criteria 

Includes no fewer than 3 requirements for section. 

Includes no fewer than 2 requirements for section. 

Includes no less than 1 requirements for section. 

Section present, yet includes no required criteria. 

No requirements for this section presented. 

 

1. Describes changes occurring at the cellular, tissue, and/or organ level that contribute to the disease process. 

 

2. Describes adaptation of the cells and body in response to the disease. 

 

3. Relates disease processes to manifested signs and symptoms. 

 

   

Clinical Manifestations & Complications 

20 points 

18 points 

16 points 

7 points 

0 points 

 

(20 points/20%) 

 

Required criteria 

Includes no fewer than 4 requirements for section. 

Includes no fewer than 3 requirements for section. 

Includes no fewer than 2 requirements for section. 

Includes 1 or fewer requirements for section. 

No requirements for this section presented. 

 

Describes the physical signs and symptoms that are important in considering the presence of the disease. 

 

1. Identifies signs that contribute to diagnosis of the condition 

 

2. Identifies symptoms that contribute to diagnosis of the condition. 

 

1. Identifies complications of the disease.
    
2. Discusses the implications to the patient when
    

 

complications are left untreated. 

 

Diagnostics 

10 points 

4 points 

0 points 

 

(10 points/10%) 

 

Required criteria 

Includes no fewer than 2 requirements for section. 

Includes 1 or less requirement for section. 

No requirements for this section presented. 

 

1. Includes list of common laboratory and diagnostic tests used to determine the presence of the disease. 

 

2. Discusses the significance of test findings in relation to the disease process. 

 

APA Style and Organization 

10 points 

9 points 

8 points 

4 points 

0 points 

 

(10 points/10%) 

 

Required criteria 

Includes no fewer than 5 requirements for section. 

Includes no fewer than 4 requirements for section. 

Includes no fewer than 3 requirements for section. 

Includes 1‐2 requirements for section. 

No requirements for this section presented. 

 

1. References are submitted with assignment.
    
2. Uses appropriate APA format (6th ed.) and i