Lab 2: The Chemistry of Life

Lab 2: The Chemistry of Life.

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UMUC Biology 102/103

Lab 2: The Chemistry of Life

INSTRUCTIONS:

 

· On your own and without assistance, complete this Lab 2 Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus).

· To conduct your laboratory exercises, use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering the questions.

· Save your Lab 2 Answer Sheet in the following format: LastName_Lab2 (e.g., Smith_Lab2).

· You should submit your document as a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility.

 

 

Pre-Lab Questions

 

1. Nitrogen fixation is a natural process by which inert or unreactive forms of nitrogen are transformed into usable nitrogen. Why is this process important to life?

 

 

2. Given what you have learned about the hydrogen bonding shared between nucleic acids in DNA, which pair is more stable under increasing heat: adenine and thymine, or cytosine and guanine? Explain why.

 

 

3. Which of the following is not an organic molecule; Methane (CH4), Fructose (C6H12O6), Rosane (C20H36), or Ammonia (NH3)? How do you know?

 

 

 

 

Experiment 1: Testing for Proteins

Data Tables and Post-Lab Assessment

Table 1: A Priori Predictions

Sample Initial Color Final Color Is Protein Present?
1. Albumin Solution      
2. Gelatin Solution      
3. Glucose      
4. Water      
5. Unknown      

 

Sample Initial Color Final Color Is Protein Present?
1. Albumin Solution      
2. Gelatin Solution      
3. Glucose      
4. Water      
5. Unknown      

 

Table 2: Testing for Proteins Results

 

 

Take a picture of your results. Include a note with your name and date on an index card in the picture. Insert picture here:

 

Post-Lab Questions

1. Write a statement to explain the molecular composition of the unknown solution based on the results obtained during testing with each reagent.

 

 

 

2. How did your a priori predictions from Table 1 compare to your actual results in Table 2? If there were any inconsistencies, explain why this occurred.

 

 

 

3. Identify the positive and negative controls used in this experiment. Explain how each of these controls are used, and why they are necessary to validate the experimental results.

 

 

 

4. Identify two regions which proteins are vital components in the human body. Why are they important to these regions?

 

 

 

5. Diet and nutrition are closely linked to the study of biomolecules. Describe one method by which you could monitor your food intake to ensure the cells in your body have the materials necessary to function.

 

Experiment 2: Testing for Reducing Sugars

Data Tables and Post-Lab Assessment

Table 3: Testing for Reducing Sugars Results

 

Sample Initial Color Final Color  

Reducing Sugar Present

1 – Potato      
2 – Onion      
3 – Glucose Solution      
4 – Water      
5 – Unknown      

 

 

Take a picture of your results. Include a note with your name and date on an index card in the picture. Insert picture here:

 

Post-Lab Questions

1. What can you conclude about the molecular make-up of potatoes and onions based on the two tests you performed? Why might these foods contain these substance(s)?

 

 

 

2. What results would you expect if you tested ribose, a monosaccharide, with Benedict’s solution? Biuret solution?

 

 

 

 

Experiment 3: What Household Substances are Acidic or Basic?

Data Tables and Post-Lab Assessment

Table 4: pH Values of Common Household Substances

 

 

Substance

 

pH Prediction

 

Test Strip Color and pH

Acetic Acid (Vinegar)    
Sodium Bicarbonate Solution (Baking Soda)    
     
     
     

   

 

Take a picture of your results. Include a note with your name and date on an index card in the picture. Insert picture here:

 

 

Post-Lab Questions

1. What is the purpose of determining the pH of the acetic acid and the sodium bicarbonate solution before testing the other household substances?

 

 

 

2. Compare and contrast acids and bases in terms of their H+ ion and OH- ion concentrations.

 

 

 

3. Name two acids and two bases you often use.

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Lab 2: The Chemistry of Life

 
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Lab: BLab: Building Proteins From RNA Assignment: Lab Reportuilding Proteins From RNA Assignment: Lab Report

Lab: BLab: Building Proteins From RNA Assignment: Lab Reportuilding Proteins From RNA Assignment: Lab Report.

Lab Report Guide

Directions Write a lab report for this lesson’s lab. Be sure that your report:

 includes all major elements of a lab report.

 meets your teacher’s content and format expectations.

 is clearly organized and formatted.

 demonstrates strong scientific reasoning and writing.

While writing, you can revisit previous parts of the lesson by returning to the course map. Be sure to refer to the lab’s student guide, which you can find on the first page of the lab experiment activity. You may also find it helpful to refer to the remaining pages of this guide, which provide general guidelines for writing lab reports.

You can upload your completed report with the upload tool in formats such as OpenOffice.org, Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or to use a web-based writing tool.

Lab Report Checklist Introduction

 Did you title your lab report?

 Did you state the purpose of the experiment?

 Did you state the question you posed before the experiment?

 Did you restate the hypothesis (or prediction) you formulated before the experiment?

 Did you list all variables and label the independent and dependent variables? Did you indicate any controlled variables?

Materials and Procedure

 Did you make a list of materials? Did you include quantities and SI units?

 Did you present the steps of the procedure as a numbered list? Did you note any changes to the original procedure?

 Did you identify your experimental and control groups?

Data Collection and Organization

 Did you organize all data in a clearly labeled table and/or graph?

 Did you check that your data is accurate and complete?

 Did you title any tables and graphs? Did you label rows, columns, axes, etc., and include units?

Analysis and Conclusion

 Did you interpret your data and graphs in the analysis rather than just restate your findings?

 Did you determine whether your data supported or refuted the hypothesis?

 Did you describe possible sources of errors?

 Did you suggest ways to improve or further your lab investigation?

Overall

 Did you make sure that your writing is precise, unbiased, and concise?

 Did you meet your teacher’s content and format expectations?

 

 

 

Lab Report Guide

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Overview The Purpose of Lab Reports

When scientists make discoveries, they write reports to share their discoveries with the world. Likewise, after you complete an experiment, you can write a report to share what you discovered.

Writing a lab report is an important skill because it helps you demonstrate what you learned in a science experiment. It also helps you practice writing accurately and clearly about technical things—a skill that is valuable in the real world.

This guide describes the format and style of lab reports. It has many tips that will help you write stronger lab reports. Use it as a reference throughout your science studies.

Lab Report Format

Although the format of lab reports varies somewhat, it typically includes all of the following components in the order shown.

Section Category Page #

Part 1 Introduction (Title, purpose, question, hypothesis, variables)

3-4

Part 2 Materials and Procedure 4

Part 3 Data Collection and Organization

5

Part 4 Analysis and Conclusion 6

Later pages in this guide provide additional detail.

Science Writing Style

Science writing is different from other styles of writing you may be familiar with, such as persuasive writing and narrative writing. As with all types of writing, science writing has its own style; it is both precise and objective.

Science writing is precise. Be concise, but use descriptive language and specific details to help readers “see” what you observed. For example, a student who observes the presence of bubbles in a liquid during an experiment may write “The liquid had bubbles.” This sentence is concise, but it doesn’t tell the reader what kind of bubbles the student saw. Two precise alternatives follow:

 “The liquid had small bubbles—the size usually seen in soda.”

 “The liquid produced bubbles the size of grapes or marbles.”

Science writing is objective. Avoid bias and subjective descriptions such as “The liquid had huge bubbles.” Also, use the third-person voice and avoid personal pronouns such as I, we, you, he, she, and they. This will allow readers to focus on the scientific topic without being distracted by thinking about the person who did the work.

Writing this way takes practice for most students. At first, your writing may sound formal or stiff to you. But in time, your writing will become clear and precise.

 

 

 

 

Lab Report Guide

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Part 1: Introduction Title

Title your lab report with a few words that summarize the lab investigation.

Purpose

The lab report should begin with one or two sentences that state the purpose of the investigation—what you want to see, practice, learn about, or test. The purpose statement answers the question “What am I trying to find out by doing this experiment?”

The three most common types of labs are:

 inquiry labs, in which you measure how changing one variable affects another variable.

 discovery labs, in which you observe a scientific phenomenon, perhaps for the first time.

 forensic labs, in which you gather and analyze data as evidence to build an argument in response to a question, as in a court case.

All three types of labs give you an opportunity to learn important scientific skills and concepts.

Question

At its core, science is about inquiry, or the act of asking questions and seeking answers. Most labs begin as the result of a question, which is why the introduction of your lab report should include a question. For example, suppose you notice that you seem to play basketball better at the court in one park than in another. After conducting research, you realize that one of the surfaces of the court at the park is different from that of your driveway. As a result, you might formulate the scientific question “What effect does the court surface have on the height that the basketball bounces?” To answer this question scientifically, you could perform several experiments and gather data.

Hypothesis (or Prediction)

A hypothesis is an initial answer to a question, a possible explanation or expectation based on prior knowledge or research. Before starting most labs, you will formulate a hypothesis. It should be listed in the introduction of your lab report.

A good scientific hypothesis states conditions, expected results, and possible reasons for those results. For example, you could respond to the basketball question with a hypothesis like “If the court surface is smooth concrete, as the park’s court is, then the basketball will bounce higher, because smooth surfaces have better contact with the ball.” Like this hypothesis, hypotheses are often structured using the format “If . . . then . . . because . . .,” which is described below.

 The “if” portion of the hypothesis describes something that you will change in the experiment.

 The “then” portion of the hypothesis describes what you think will happen as a result of that change.

 The “because” portion of the hypothesis describes the reason why you think that change will occur.

In other laboratory activities you will be asked to make a prediction. You will conduct background research, then predict the outcome of a known scientific process.

Special Note about Inquiry Labs For inquiry labs, questions are generally written in the form of “What is the effect of X on Y?” Hypotheses will generally be in the form “If X [describe how you will change X during the experiment], then Y will [predict how Y will change in response], because [give your reason].” In many inquiry labs the variables lend themselves to a scatterplot (X-Y plot).

 

 

Lab Report Guide

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Variables

The last part of the pre-lab information section of your lab report should be a description of the variables. There can be up to three types of variables, each of which is described below.

 Independent variable (IV): This is the factor that is directly manipulated in the experiment. It is sometimes called the manipulated variable. In the traditional format for a hypothesis, “If X . . . then Y,” the independent variable is X.

 

 Dependent variable (DV): This is the observable factor that varies due to changes to the independent variable. It is sometimes called the responding variable. In the traditional format for a hypothesis, “If X . . . then Y,” the dependent variable is Y.

 Controlled variables: These are variables that could affect the dependent variable, but which you prevent from changing during the experiment. By holding other variables constant, you can focus an experiment on the relationship between the independent variable and the dependent variable.

 

Part 2: Materials and Procedures Materials

List all of the supplies you will need to conduct the experiment. Include the names of the materials, quantities, SI units, and even brand names if the brand may have affected your results.

Procedure

Create a numbered list summarizing the steps you carried out in completing the lab. If you made any changes to the original instructions in the student guide (either on the advice of your teacher or on your own), be sure to identify them. Describe each step using accurate, concise language so that someone who has never performed the experiment could repeat it. Be sure to include details about any apparatuses and materials that you used, especially if you made substitutions to the apparatuses and materials described in the student guide for the lab.

Groups

Laboratory procedures sometimes are based around the following two kinds of groups:

 Experimental group: This is the group in which one condition (variable) is changed. Its response is compared with the response of the control group.

 Control group: This is the group that is identical to the experimental group but in which the independent variable is not changed. It provides a baseline for comparison.

Trials: For some labs, you will repeat the experiment to collect additional sets of data. By performing additional trials, you can refine how you execute the lab procedure, increase accuracy, and avoid one-time results. Instead of performing additional trials, you may be able to combine your data with other students’ data if you are all performing the same experiment.

 

 

 

 

Lab Report Guide

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Part 3: Data Collection and Organization While doing the lab procedure, you collected data on a data sheet or in your lab notebook. Your lab report should display that data in formal tables or graphs. Use the descriptions below to choose the display that makes your data clear to the reader and reveals what is important about the data.

Tables: Be sure to label each column and row in the headers. Quantitative data should include all measurements and calculations, including correct SI units of measurement. Make sure that units are consistent and that you use an appropriate number of significant figures. Qualitative data should include descriptions of what you saw, heard, felt, or smelled during the experiment. (See the sections titled “Science Writing Style” and “Variables” for more guidance.) Bar graphs: Use these graphs to compare two or more sets of conditions or categories. Histograms: Use these bar graphs to show the frequency of ranges of values.

Line graphs: Use these graphs to show the change in one variable as a second variable is changed. Typically, the individual data points are

plotted, and then lines are added to show trends. A line segment that connects two points on the graph provides a slope, which can be interpreted as a rate that measures how one variable changes relative to another. This slope has a mathematical formula. These graphs can be very helpful when you want to look at changes over time. Pie graphs: Use these graphs to show percentages or parts of a whole.

Scatterplots: Use these graphs to show each pair (x, y) as a point in the coordinate plane. They differ from line graphs in that individual points are not sequentially connected with one line. Instead, the points express a trend. This trend can be calculated mathematically as a regression equation and a correlation value that measures how closely the data follow the general trend.

In an inquiry lab, if the data is numerical, the X (independent) and Y (dependent) variables appear in their usual places on the horizontal and vertical axes, respectively.

 

 

 

 

Lab Report Guide

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Part 4: Analysis and Conclusion Analysis

The analysis portion of your lab report should describe the data and results in words. You should:

 analyze and state the relationship between the independent and dependent variables by describing how the dependent variable reacted to the change in the independent variable. If you used a control, you should compare the data to the control.

 explain all trends in the data, as well as any significant observations that you made during the lab.

 describe specific data points that help explain the outcome of the experiment.

 present and interpret statistics, such as the range, variance, standard deviation, trend equation, or correlation.

 interpret graphs with descriptions. Background Research

Before you conduct an experiment, you usually have prior knowledge about the topic that you gained from reliable sources, such as your teacher, books, online resources, or past experiments. You may conduct research before performing an experiment, and sometimes you may do additional research after you complete the experiment but before you write the conclusion of your lab report. Your teacher may provide guidance about the topic you should research, the type and number of sources you should use, when you should do the research, and how that research should appear in your lab report. Your teacher may also ask you to relate the experiment to another topic or discuss it in another context. Be sure to consider all of these things as you write your analysis and conclusion.

Conclusion

The conclusion of your lab report should explain the understandings you’ve gained as a result of the lab experiment. It should also address the question that led to the experiment. Below is a list of steps you should take when writing your conclusion.

Determine whether the hypothesis was supported. First, restate your hypothesis. A hypothesis is not an answer, so it cannot be described as “correct” or “incorrect.” Avoid this common error. Instead, state whether the hypothesis was “supported” or “not supported” by your results. Be sure to explain how and why you came to that conclusion. Identify possible sources of error. Scientific errors are factors that could have contributed to the uncertainty in the outcome of your experiment. Could measurements have been more accurate? Could you have performed more trials? Could environmental factors, such as the lab’s lighting or temperature, have had an effect? State these possible sources of error and analyze or estimate how much they may have affected your results. Suggest improvements and further investigation. Even if your hypothesis is not supported by the results of the lab, you can still produce an excellent lab report as long as you show a thorough understanding of the scientific concepts. This is often where your results are linked to your background research. You can now suggest revisions for future experiments based on what you’ve learned. In this section, you should explain applications of the experiment—how could your findings or those of similar experiments be used in the real world? Lastly, include any related questions you may want to explore in the future.

In an inquiry lab, the analysis and conclusion will focus on the relationship between X and Y.

 

 

 

 

Lab Report Guide

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Tips for Using Your Student Guide and the Lab Lesson  The title of your lab report should match the title

of the lab in the student guide and in the online lesson.

 Your purpose statement may be inspired by the purpose statement that appears at the top of the first page of the student guide.

 Your lab question and hypothesis should be formulated during the lab lesson warm-up. If you forgot what you wrote, you can revisit the warm- up to copy, paste, and proofread your question and hypothesis.

 The variables are generally listed in the header of the student guide.

 The student guide usually provides tables for you to use for collecting data. The data table in your lab report can often replicate this format.

 The instruction phase of the lesson usually includes tips from your on-screen teacher for learning how to fill in and interpret the data.

 The student guide may also provide you specific questions to consider as you analyze your results. Be sure to address them in the analysis and conclusion of your lab report.

If you are struggling with the lab report, your teacher has access to additional activities that will help you reflect on your lab experience.

Lab: BLab: Building Proteins From RNA Assignment: Lab Reportuilding Proteins From RNA Assignment: Lab Report

 
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Bioethics

Bioethics. PART I: GENERAL ISSUES

1. Introduction: What Is Bioethics? ……………………………………….3

2. Technology, Nature, and Responsibility …………………………..13

3. Ethical Issues and Theories ……………………………………………..28

4. Common Terms Used in Bioethics ………………………………….39

PART II: ISSUES EARLY IN LIFE

5. Abortion ………………………………………………………………………..67

6. Reproductive Technologies ……………………………………………..89

7. Early Diagnosis of Genetic Anomalies …………………………… 107

PART III: ISSUES AT THE END OF LIFE

8. Definitions of Death ……………………………………………………. 129

9. Forgoing and Withdrawing Treatment ………………………….. 144

10. Euthanasia …………………………………………………………………..168

11. Physician-Assisted Suicide ……………………………………………. 184

PART IV: ISSUES IN BIOTECHNOLOGY

12. Genetic Engineering: Nonhuman Organisms …………………201

13. Genetic Engineering: Human Beings ……………………………..231

14. Cell-Based Biotechnologies …………………………………………..250

PART V. OTHER SPECIFIC PROBLEMS

15. Organ and Tissue Transplantation ………………………………..273

16. Research on Human Subjects ………………………………………..290

17. A Whole Earth Ethic …………………………………………………….302

WHAT IS BIOETHICS?

Today the word bioethics is commonplace. Several newsmagazines, television shows, and Web sites have devoted special editions to topics such as stem cell technology, cloning, organ transplantation, in vitro fertilization, and gene therapy. Almost daily, media attention focuses on some particular problem, application, or breakthrough in science that inevitably raises as many problems as it solves.

We have become so used to these discussions and events that we forget that it was only forty years ago that the institute of Society, Ethics and the Life Sciences-as the Hastings Center was known then- was founded.’ In 1965, few knew of the institute, and fewer still understood what its members were talking about. But the role and value of this institute, and others that were to follow in its footsteps, were soon discovered as the major questions of abortion, population control, the allocation of resources, genetic engineering, behavior modification, and all the problems associated with dying began to press in upon us. Discoveries and applications began to outpace our ability to reflect on them, and everyone was reeling from the biological revolution.

We have seen several presidential commissions and advisory boards, an encyclopedia and its revised editions/ numerous journals3 and books,’ several societies, associations, and centers,’ and innumerable conferences all devoted to various problems in bioethics. Courses have spread throughout undergraduate and graduate schools; even graduate programs in bioethics now exist. Bioethicists have appeared as experts in court trials, and journalists frequently cite them in media reports about various dilemmas in health care and the life sciences. Institutional review boards, which examine the ethical dimensions of human research, are present almost everywhere.’ Many hospitals now have in-house ethicists and/or ethics committees to help evaluate a variety of ethical dilemmas that occur in the routine provision of health care.’

Few would have thought that such events could have happened when the first few tentative steps in the ethical examination of issues in health care were being taken in the 1960s. From these early days, commentators generated a wealth of scholarship; and although many problems seem as intractable as they did when first considered, the field has advanced considerably, and we are the beneficiaries of such scholarship.

A number of names have come into use to describe different areas of study in this field. One is

medical ethics. This looks primarily to the study of ethics within the discipline of medicine and the medical profession. Another term is health care ethics, which examines all the various issues in health care, including medical and nursing ethics, as well as public policy and institutional issues. The term organizational ethics sometimes designates ethical discourse concerning institutional issues. When considering the ethics of caring for patients at the bedside, the terms clinical ethics or clinical bioethics are used. We will use the term bioethics, which is a more inclusive term.

Since bioethics examines the ethical issues at both the heart and the cutting edge of technology in health care and the life sciences, the area covered is necessarily broad. This is what makes bioethics as a field of study complex but also exciting. There is a need for many specialties and disciplines because no one field can claim the territory of life. In addition to the potential benefits and harms, we have learned that medical technologies have economic consequences, which raise questions of allocation. Reality-which is itself interdisciplinary-has taught us to be interdisciplinary in our thinking. Similarly, bioethics is teaching us the necessity of genuine interdisciplinary thinking and working. Traditional disciplines that participated in one way or another in the field of bioethics include, for example, theology, philosophy, medicine, law, and biology. One might say that bioethics is a multidisciplinary field carried out through interdisciplinary discourse.

BIOETHICS

When we focus on the first part of the word bioethics- are thrust into the exciting, complex, and often troublesome world of medicine and the life sciences, which includes neuroscience, genetics, and molecular biology. The prefix biocomes from the Greek word for life (bios). Several questions emerge when one thinks about applications of both biotechnology and nanotechnology. This aspect of our topic requires that we study these fields to understand the biological revolution that is occurring around us. While we need be neither experts nor even competent amateurs, we do need to be informed citizens if for no other reason than the developments in these fields have a profound impact on our lives and our society. Thus paying attention to developments in these fields is a critical first step in examining ethical dilemmas in bioethics.

BIOETHICS

The other part of the word-“ethics”-is equally important, for the developments we discuss raise serious and profound dilemmas that challenge our value system as well as the culture supporting those values. The root ethics comes from the Greek word ethike meaning the science of morals or the study of habits.

Ethics, of course, has a problematic reputation. Many regard ethics as the great naysayer and dismiss it out of hand. Others reduce ethical arguments to opinion or taste and refuse to face arguments and conflicts. Still others use carefully developed principles and/or methodologies to consider various values and to tease out hidden conflicts and complex relationships.

Let us present an overview of two methods of ethical decision making that are frequently used in bioethics. The first is a kind of ethics known as deontological ethics. The Greek word deon means duty, obligation, or principle. Deontological ethics is a method of decision making that begins by asking, “What are my duties?” or “What are my obligations?” The correct ethical course is to follow

one’s duties-regardless of where they lead one. One may refer to this as the “Damn the torpedoes, full steam ahead” school of ethics. For once duties or obligations are established, the appropriate actions are clear and must be undertaken regardless of circumstances or outcomes.

A very common example of deontological ethics is the Ten Commandments of the Judeo-Christian religious tradition. The Ten Commandments are basically a set of moral duties that tell what to do or not to do. Biblical writers present them as clear and certain moral guides that mean what they say and say what they mean. They are, after all, the Ten Commandments, not the Ten Suggestions.

The second is a kind of ethics known as teleological ethics. The Greek word telos means end or goal. Thus, in teleological ethics, one’s moral obligations are established, not by an evaluation of obligations, but by an examination of consequences or outcomes of various actions. Thus one name for this kind of ethical theory is consequentialism. This method attempts to predict what will happen if one acts in various ways and to compare these various outcomes against one another. This outcomes-based evaluative process determines what is moral or the right act.

Situation ethics is probably one of the better known of the many variants of consequentialism. Popularized in the mid1960s by Joseph Fletcher, situation ethics requires that we attend seriously to the implications of actualizing our ethical beliefs. Thus situation ethics would argue that it is not enough to do good; one must also know which of the many possible goods is better. Therefore, the basis for right action is found in the particular characteristics of the situation.

Although each of these has the strengths of the ideas on which the methods are based, they both suffer from a limitation: they each have tunnel vision when evaluating means or ends. Deontological ethics typically neglects the outcome of an act and is inattentive to substantive differences in the outcome of our actions or the way an unnuanced act can affect individuals or society. Additionally, deontological ethics typically does not take into account the situation or circumstances in which individuals find themselves. Similarly, in its zeal to attend to the outcomes of our actions, consequentialism neglects to develop a way to evaluate the various outcomes or to compare them against one another. That is, situation ethics says to do that act which produces the best or better outcome. But it has no built-in standard by which to judge or to discriminate between outcomes. Perhaps a viable ethical strategy would be to use the two theories as a dialectical way of evaluating both means and ends. In this way, the theories can be mutually corrective rather than mutually exclusive by being attentive both to our obligations and to various outcomes.

We will explore ethical theories in more detail in chapter 3.

THE ISSUES

One can find the topics we will discuss in this book in the table of contents. As an introduction, the book will present an overview of the issues in the major problem areas of bioethics: abortion, reproductive technology, early (genetic) diagnoses, death and dying, forgoing or withdrawing treatment, euthanasia, physician-assisted suicide, genetic engineering-of plants, animals, and human beings-cell-based biotechnologies (e.g., stem cell technology, cloning, and chimera research), organ transplantation, research on human subjects, and environmental issues.

As you proceed into the book, you will notice that certain questions continue to reappear, certain terms continue to make their significance felt. Certain questions and solutions to problems will raise broader social policy questions. Specific practices call into question fundamental relationships and values. This introduction to bioethics will not examine all these topics or subjects but will frame various questions so that you will have a way of orienting yourself to these broader questions of social policy. For an in-depth examination of these and other topics, we suggest books at the end of each chapter that are relevant for that particular topic.

You will also find any number of Web sites on the Internet relating to bioethics. In November 2007, we ran a Google Web search on “bioethics,” which returned about 4,610,000 hits. Of course, not all of these hits may be trustworthy, good, or reliable. There are several research tools available on the Internet and through libraries. The National Reference Center for Bioethics Literature (NRCBL) at Georgetown University offers a bibliographic search service. Users submit information about the particular topic and project on which they are working, and the NRCBL will return a bibliography of bioethics resources (articles, books, etc.) fulfilling the search criteria. The Web portal for this service is: http://bioethics.georgetown.edu. As the Internet evolves, scholars, students, and others in the field of bioethics will begin to appreciate and distinguish the good resources on the Web from the problematic ones.

To return to our first question-What is bioethics?-let us consider a few definitions. One may define bioethics generally as follows: the systematic exercise, study, and methodology of responsible agents and actions in the life sciences (e.g., biology) and healing arts (e.g., medicine). The Oxford English Dictionary defines bioethics as, “The discipline dealing with ethical questions that arise as a result of advances in medicine and biology.”‘ A biologist by the name of Van Rensselaer Potter first used the term to refer “to a new field devoted to human survival and an improved quality of life, not necessarily or particularly medical in character.”‘ In 1977, the philosopher Samuel Gorovitz defined bioethics as the “critical examination of the moral dimensions of decision-making in health-related contexts and in contexts involving the biological sciences.”” This definition is still a good one for it highlights the interdisciplinary and social dimensions of bioethics. It points us in the right direction as we enter the fascinating, but complex world of bioethics.

DISCUSSION QUESTIONS

1. Why is it necessary to have basic knowledge of both scientific and ethical issues in considering the problems encountered in bioethics?

2. What major bioethical problems have been in the media recently? What are some of their implications?

3. Why must one also consider the social or policy implications of problems in bioethics?

NOTES

1. Albert R. Jonsen, The Birth of Bioethics (New York: Oxford University Press, 1998), 20-22.

2. The Encyclopedia of Bioethics is in its third edition. See Stephen G. Post, ed., Encyclopedia of

Bioethics, vols. 1-5, 3rd ed. (New York: Macmillan Reference USA, 2004).

3. Several key bioethics journals include, but are not limited to, the American Journal of Bioethics, Journal of Clinical Ethics, Hastings Center Report, Bioethics, the Kennedy Institute of Ethics journal, and the National Catholic Bioethics Quarterly.

4. See Jonsen, Birth of Bioethics, and Jennifer K. Walter and Eran P. Klein, eds., The Story of Bioethics: From Seminal Works to Contemporary Explorations (Washington, DC: Georgetown University Press, 2003).

5. For example, the American Society for Bioethics and Humanities, the American Society of Law, Medicine, and Ethics, the Kennedy Institute of Ethics, and the Hastings Center.

6. See the compliance rules of the Department of Health and Human Services, Protection of Human Subjects, 45 CFR 46 (2005), §46.112.

7. See JACHO standards for accreditation: Joint Commission on Accreditation of Healthcare Organizations, Comprehensive Accreditation Manual for Hospitals (Oakbrook Terrace, IL: Joint Commission on Accreditation of Healthcare Organizations, 1999).

8. Though many dispute whether bioethics should be understood as a discipline in the narrow sense. See Jonsen, Birth of Bioethics, 325-51. See also Daniel Callahan, “Bioethics,” in Encyclopedia of Bioethics, 1:278-87; and idem, “Bioethics as a Discipline,” The Hastings Center Studies 1, no. 1 (1973): 66-73.

9. Callahan, “Bioethics,” 280. See also Warren T. Reich, “How Bioethics Got Its Name,” Hastings Center Report 23, no. 6 (November 1993): S6.

10. Samuel Gorovitz, “Bioethics and Social Responsibility,” The Monist 60 (January 1977): 3.

BIBLIOGRAPHY

Ashley, Benedict M., Kevin O’Rourke, and Jean K. deBlois. Health Care Ethics: A Catholic Theological Analysis. 5th ed. Washington, DC: Georgetown University Press, 2006.

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Beauchamp, Tom L., LeRoy Walters, Jeffrey P. Kahn, and Anna C. Mastroianni, eds. Contemporary Issues in Bioethics. 7th ed. Belmont, CA: Wadsworth, 2007.

Cahill, Lisa Sowle. Theological Bioethics: Participation, Justice, and Change. Washington, DC: Georgetown University Press, 2005.

Crigger, Bette-Jane, ed. Cases in Bioethics: Selections from the Hastings Center Report. 3rd ed. New York: St. Martin’s Press, 1998.

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Fletcher, Joseph F., and James F. Childress. Situation Ethics: The New Morality. Louisville, KY: Westminster John Knox Press, 1997.

Gorovitz, Samuel, et al., eds. Moral Problems in Medicine. 2nd ed. Englewood Cliffs, NJ: Prentice- Hall, 1983.

Harron, Frank, John Burnside, and Tom Beauchamp. Health and Human Values: A Guide to Making Your Own Decisions. New Haven, CT: Yale University Press, 1983.

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Jokobovits, Immanuel. Jewish Medical Ethics: A Comparative and Historical Study of the Jewish Religious Attitude of Medicine and Practice. New York: Bloch Publishing Company, 1997.

Jonsen, Albert R. The Birth of Bioethics. New York: Oxford University Press, 2003.

Jonsen, Albert R., Mark Siegler, and William J. Winslade. Clinical Ethics: A Practical Approach to Ethical Decisions in Clinical Medicine. 6th ed. New York: McGraw-Hill, 2006.

Jonsen, Albert R., Robert M. Veatch, and LeRoy Walters, eds. Sourcebook in Bioethics. Washington, DC: Georgetown University Press, 1998.

Kelly, David F. Contemporary Catholic Health Care Ethics. Washington, DC: Georgetown University Press, 2004.

Critical Care Ethics: Treatment Decisions in American Hospitals. Eugene, OR: Wipf and Stock, 2002.

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Kuczewski, Mark G., and Rosa Lynn B. Pinkus. An Ethics Casebook for Hospitals: Practical Approaches to Everyday Cases. Washington, DC: Georgetown University Press, 1999.

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INTRODUCTION

Humans have always seemed to find ways of intervening in nature. The ability to make a fire and the invention of the wheel had profound impacts on the development of human society. The domestication of plants and animals allowed humans to live in ways unthought of before. The rise of modern science and the Industrial Revolution stand as markers of yet another major change in our way of life.

Our current technological revolution presents further opportunities for intervening in life on both the micro and macro levels. The technologies surrounding conception and birth, such as in vitro fertilization and amniocentesis, help determine when we will be born and what some of our qualities may (or may not) be. Developments in genetics led to the production of new grains that produce more bushels per acre.’ An oil-eating bacterium has been manufactured to help clean up oil spills.’ Although a totally implantable artificial heart is not yet a reality, various assist devices are available to serve as a transition to technology; in fact, some researchers are developing technology that makes threedimensional tissues using inkjet technology.’ In terms of regenerative medicine, the hope for these scientists is to one day use the technology to create fully functional replacement organs or tissues. The sequencing of the human genome by the Human Genome Project and Celera Genomics has given us the map and sequence of our genetic structure. Current research is aimed at deciphering the functions of our genes for new approaches to treating genetic diseases and preventing others.

Technology touches virtually every part of our lives; but the moral record of technology is certainly a mixed one. Clearly technology has brought benefits. Computers have given us incredible capacities for calculating and information processing. The vast amounts of information about individuals collected and stored through technology raise serious issues of privacy and confidentiality. Medical technologies provide improved diagnostic capacities, but frequently we can do little or nothing about the disease diagnosed. Other technologies have fairly negative consequences. Nuclear weapons brought us to the brink of annihilation. To protect national interests, governments continue to develop more sophisticated instruments of “interrogation.” The impact of yet other technologies is mixed. Nuclear power stations provide necessary energy but problems of waste disposal have yet to be fully resolved. Birth technologies provide children but do not cure infertility. In addition, many wonder whether such technologies reduce children to commodities. Developments in biotechnology promise new cures or the end of global hunger, yet they carry threats to social justice, biodiversity, and ecological harmony.

Whatever one’s judgment about a particular technology, technology is here to stay and will continue to have far-reaching effects on our lives.

CHARACTERISTICS OF TECHNOLOGY

While specific technologies vary, technology itself has several common themes. Let us indicate some of these by following ideas proposed by Norman Faramelli in his book Technethics.4 Here, we will introduce six characteristic themes of technology.

The Empirical or Pragmatic Spirit

This is certainly close to the American spirit. We want to get the job done and get it done quickly. The issue is results, preferably results that we can measure.

Functionalism

Functionalism follows from the pragmatic bent of our culture. The issue is design and performance. We are frequently more concerned about how something will work than why we should do it.

Preoccupation with Means, Not Ends

We know that it is often easier to figure out how to solve a particular problem than to agree on which problem ought to be solved. The question of ends requires explicit value judgments for solutions. We often hope that we can finesse that difficult debate by focusing on the means-and by pretending that the means debate involves no value or ethical judgments.

Preference for Quantity over Quality

An old song says that if you can’t be with the one you love, then love the one you’re with. This attitude reflects-among other things-a preference for that which is at hand, for what is available, rather than that which is better. Of course, quantitative measurements are easier to do and the phrase the bottom line has a nice objective, realistic ring to it. Yet for all the material goods available to us, we seem too unsatisfied, unfulfilled. Plus, knowledge of the bottom line may not give us the important information we want and need for critical decision making.

Efficiency and Profit

The concept of standardization led to the development of interchangeable parts, which led to mass production, which led to fewer skilled laborers being needed, which led to lower wages, which led to higher profits. Now robots, which are directed by computers, perform much of this process-hence, the emergence of automation in manufacturing. Pragmatism, functionalism, and preoccupation with means and quantity all join here to promote efficiency in the service of higher profits.

Manipulation

Concern for efficiency and quantity leads to a desire to exercise greater rational control over all phases of life. For only in this way can one increase productivity at a cost-effective level.

Manipulation to achieve rational control is one thread in the manufacturing process-though the final word on the use of robots is yet to be heard. But such manipulation may be quite another thing if we begin more intensive selection of characteristics of our offspring through advanced diagnostic technologies and genetic interventions.

WHAT IS TECHNOLOGY?

Having seen some of the characteristics of technology, let’s now look to defining it. An obvious approach to technology is through hardware-the machines, the instruments, the robots. This is certainly an important part of technology, for this dimension of it clearly has a major impact on our lives.

Others, however, like French theologian Jacques Ellul see technology more as technique.’ Technique is a complex of standardized means for achieving a predetermined result. Someone using technology obtains results through a deliberate and rationalized process, using many of the characteristics of technology described above. Technique is the rational organization of behavior, not hardware or output; in other words, technique is like software.

This orientation is more helpful because it allows us to see technology as a cultural phenomenon, a method of organization, an angle of vision. While the products of the technological revolution impact our lives, technology as an organizational method for both thought and social interaction profoundly affects our social reality.

Daniel Bell has also analyzed technology and has defined five essential dimensions: function, energy, fabrication, communication and control, and regulated decision making.’

Function

Function is the primary element in design and relates to nature only insofar as nature is an efficient guide. As noted before, the issue is what something does and how something performs, not why we should do this.

Energy

The technological revolution gradually demanded new power sources, and we fulfilled that need by shifting from natural sources such as wind, water, and personal strength to manufactured sources such as steam and electricity. Now that we are depleting the natural resources required for their generation, we are turning to nuclear power. Our need for power is outstripping both our resources and our capacity to generate it, and this is creating a crisis, nationally and internationally.

Fabrication

Bell uses this word to describe the process of standardization of both parts and actions. This permits the replacement of one part or person with another so that one can achieve greater efficiency. One can use this process in manufacturing, in organizing a corporation, or in education.

Communication and Control

Technological systems feed off information and require increasing amounts of it to keep the system going. Thus, whoever controls the communication system controls the power. Information is useless unless someone communicates it, and technology, through increasing utilization of computer networks, provides an increasingly effective and efficient method of communication and control. Of course, this has vast implications for social power because not everyone will have access to these technologies or know how to use them.

Decision-Making Rules

Since function, fabrication, and communication are critical parts of the technological culture, we need to be assured that there will be coherence in their use and application. Rules of communication and decision making cannot be random or spontaneous, or the vital flow of information may be interrupted. Thus there is a need for speed and accuracy in the decision-making process, which calls for greater standardization, which leads to further decisions about what one will or will not include in decision making. This, of course, leads to a greater centralization of power and reinforces communication and control systems.

Whether understood as hardware or software, technology has profound effects on our everyday lives. Because of this, people see the need to examine technology to predict its effects and to evaluate them. Such assessments will, we hope, help us avoid many undesirable aspects or consequences of a particular technology.

One such method of evaluation is called technological assessment. This is a systematic study of the effects on society that may occur when a technology is introduced, expanded, or modified, with special emphasis on the impacts that are unintended, indirect, and delayed. This method attempts to evaluate a broad range of effects, including-but not limited to- environmental, social, economic, and political dimensions. Thus, a technological assessment seeks to examine as thoroughly as possible the short- and long-term consequences of a technology, its risks and benefits, its social and environmental impacts, and the cultural implications. Only by attending to all of these dimensions can one obtain a full sense of the significance of a technology.

Henk ten Have, a professor of medical ethics in the Netherlands, has argued that we must also recognize that technologies may “recast the initial problem into a new phraseology that may create new concepts; they also relocate problems and may shift responsibility for finding acceptable solutions.”‘ From this perspective an assessment of technology should not only examine the implications of introducing a new technology as noted above, but also examine the impact of technical rationality on ourselves, our personal and professional relations, and our society. This technical rationality has led to a preference for compartmentalization, a diminishment or even distrust of subjectivity, and a preference for instruments and objectivity. This orientation to technological assessment follows from understanding technology as a way of thinking. The important part of a technology assessment, then, is to think of how the introduction of a technology helps us reconceptualize or reimagine who we are as well as our relation to society.

TYPES OF TECHNOLOGY

In his study of technology, Daniel Callahan identified five types of technology.” The purpose of developing this classification schema was to help us see the potential of various technologies as well as understand the impact various technologies have on our lives. They are preservation technologies, improvement technologies, implementation technologies, destructive technologies, and compensatory technologies.

Preservation Technologies

These technologies help us adapt to nature or to survive various environments so we can fit into our environment, or help us investigate our environment. Some examples of these technologies are our homes, furnaces, irrigation systems, eyeglasses, and telescopes.

Improvement Technologies

Technologies such as these enable people to meet their felt needs or to go beyond the limits of their particular natural capabilities. As such, improvement technologies can enhance our physical dimensions or can help decorate or embellish our bodies. Examples of these are genetic engineering, prosthetics, and cosmetic surgery.

Implementation Technologies

These technologies are difficult to describe because their purpose is to assist in the implementation of other technologies. One can best think of these technologies as facilitators or enhancers. Thus, the computer allows us access to other information technologies, and the telephone allows us access to information. Planned obsolescence or the changing fashion allows people to have work.

Destructive Technologies

Technologies such as these are designed with one primary purpose: destruction. They may help us achieve other ends, but the purpose of these technologies is clear from their design. Such technologies may achieve their end through manipulation and control or simply by the capacity for obliteration. Examples are behavior modification technologies, weapon systems, and vacuum aspirators.

Compensatory Technologies

Having developed and implemented all manner of technologies, we now need other technologies to help us deal with the effects of these technologies on our lives. Thus, we have machines to help us exercise, we have noise-canceling headphones to help drown the sounds of other technologies, and we have sensitivity training to enable us to experience the world of nature that we have removed through technology.

UNDERSTANDINGS OF NATURE

Individuals or groups always use or apply technologies within a context. One critical context affected by our view of technology is that of nature. Here, we present three views of nature, developed by Daniel Callahan, to help understand both the arena in which technologies are often applied and some of the presuppositions we bring to them.

Nature as Plastic

In this perspective, one sees nature as alien and removed from human beings. It is outside of us and we are separate from it. It is plastic in that humans can shape and use it in any way human beings see fit. The model assumes that the only limit to nature is the limit human beings put on it. Thus, nature is totally at the disposal of human beings.

Nature as Sacred

This tradition finds a home in both Eastern and Western religious traditions. Taoism suggests conformity to nature so that an individual may become part of the cosmic whole of which nature is a manifestation. The medieval theologian Bonaventure, following the lead of Francis of Assisi, saw nature as the footprints of God. The natural was a reflection of the glory of God. These perspectives create an attitude of stewardship or conservation of nature. While one may intervene, such acts should be discrete, infrequent, and reverent.

Nature as Teleological

This understanding of nature suggests that there is a purpose and logic in nature. There is an inner dynamism that leads nature to certain ends. There is a limit that prevents the violation of nature. Thus, the extent of interventions into nature is set by the dynamism of nature itself.

What we think we can do determines, in part, what we do. If, for example, we think that nature is only an object existing apart from us, we may be willing to consider more interventions than if we thought of it as being part of an organic whole that is sensitive to interventions.

Ironically, the Judeo-Christian tradition is partly responsible for the desacralization of nature. In its clear and firm rejection of idolatry and its affirmation of God’s being a God of nature rather than a God in nature, that tradition helped validate the objectification of nature. While many in that tradition would not want to intervene to the same extent that others have, nonetheless the balance is a difficult one to maintain.

RESPONSIBILITIES OF SCIENTISTS

In addition to thinking about the various meanings of technology and nature, we also need to think of the responsibilities of the scientists, for these are the individuals most directly involved in interventions into nature. James Gustafson proposed four models we can use to think about professional responsibility in this area and to evaluate the consequences of a particular position.’

Total Intervention

In this position, scientists would have the right to do whatever is possible; some call this the technological imperative. The justification for this position is the inherent value of knowledge itself. This is complemented by the valuing of intellectual curiosity and the seemingly inherent human drive to solve problems. In this model the only limit is the lack of technical capacity.

No Intervention

This blanket prohibition is based on either a view of nature as sacred and therefore inviolable or a conviction that the proposed research violates a limit imposed by nature. This model is reminiscent of the position of some Native Americans who refused to practice agriculture because to do so was to rip up the breast of their mother, the earth. Total consistency in this position would lead to the reduction of the human community to huntingand-gathering societies. Thus, many individuals would not use this principle absolutely but would rather understand it as a strong check on the previous understanding of intervention.

Limited Interventions

This perspective argues that scientists have no right to change the most distinctive human characteristics. This model, related to an understanding of nature as teleological, sees interventions checked by a particular limit: human nature. Thus, one can intervene in nature (as opposed to the second model) but human nature is the boundary, not lack of technical capacity (as in the first model).

Directed Interventions

This model says that scientists have the right to foster the growth of valued human characteristics and to remove those that are harmful. This model suggests a high level of intervention both to control and to direct human development. The goal is quality of life, and it is served by directing human growth and removing obstacles to its fulfillment.

Clearly, nobody practices these models in a pure form, but we do find traces of them in most of us. The issue is to use these perspectives to understand better why we are intervening in nature and to ask if there are any restraints on this. In other words, one can use these models as a way to evaluate a scientist’s responsibility in the development and use of technology.

SOCIETY, SCIENCE, AND TECHNOLOGY

For those who are not bench scientists, a helpful way to think about being responsible with technology is to consider the relationships between society, science, and technology. Ian Barbour illustrates three ways to understand technology: technology as threat, technology as liberator, and technology as an instrument of power.’° Barbour argues that technology should be seen as an instrument of power, formed by dynamic interactions between society, science, and technology itself. Because institutions yield these instruments and exercise their powers, technology serves institutional interests, which include human values (e.g., goods necessary for human beings to flourish), expansion of human knowledge (a value itself), profit, and so on. These interests interact and help shape the research, development, marketing, and use of technology across a wide array of human situations. It is within these situations that individuals and groups face the profound bioethical questions in the responsible use of these technologies.

SUMMARY

If we look around us, it is clear that technology is here to stay. Our culture is utterly dependent on

various aspects of it. We could not get through our day without technology. From clocks to microwaves to transportation systems to digital video recorders and high-definition TV, our lives, work, and entertainment are inherently tied up with technology.

Our quality of life has greatly increased because of technology. We live in greater comfort in various climates. We have abundant food and water supplies, we can communicate and travel much more efficiently, and our health has improved.

After two world wars and attacks such as the one on September 11, 2001, we have become acutely aware of how some can use technology to cause terror and suffering throughout the world. We stand in daily dread of the release of weapons that could destroy us-whether they are designed for destruction (e.g., nuclear weapons) or not (e.g., commercial aircraft). We have more information accessible to us but we know less of what it means or what to do with it. Pollution, a byproduct of our technical culture, is threatening to destroy our ecosystem. Many resources needed for daily living are in short supply or in danger of being depleted.

Thus many benefits and problems are given to us by technology. Each requires much study and examination. But it is to one

DISCUSSION QUESTIONS

1. What are the costs and benefits, the strengths and weaknesses, of the vast technological society that has developed in America?

2. What are some examples of unintended and delayed side effects of technology? Do you think these could have been avoided?

3. Develop lists of examples of the various types of technologies. What needs are these technologies meant to satisfy? What values are these technologies based on?

4. How has technology benefited your life? How has it complicated your life?

5. Which is more helpful for you: to think of technology as hardware or as a system? Why?

NOTES

1. David Zilberman, Holly Ameden, and Matin Qaim, “The Impact of Agricultural Biotechnology on Yields, Risks, and Biodiversity in Low-Income Countries,” Journal of Developmental Studies 43 (2007): 63-78.

2. Victor de Lorenzo, “Blueprint of an Oil-Eating Bacterium,” Nature Biotechnology 24 (2006): 952-53.

3. Tao Xu, Joyce Jin, Cassie Gregory, James J. Hickman, and Thomas Boland, “Inkjet Printing of Viable Mammalian Cells,” Biomaterials 26 (2005): 93-99.

4. Norman J. Faramelli, Technethics (New York: Friendship Press, 1971), 31 ff.

5. Jacques Ellul, The Technological Society (New York: Vintage Books, 1964), 13ff.

6. Daniel Bell, faculty seminar presentation (Worchester Polytechnic Institute, 1976); see also idem, The Coming of the PostIndustrial Society: A Venture in Social Forecasting (New York: Basic Books, 1973).

7. Henk A. M. J. ten Have, “Medical Technology Assessment and Ethics: Ambivalent Relations,” Hastings Center Report 25 (September-October 1995): 18.

8. Daniel Callahan, The Tyranny of Survival (New York: Macmillan, 1973), 55ff.

9. James Gustafson, “Basic Issues in the Biomedical Fields,” Soundings 53 (Summer 1970): 151ff.

10. Ian G. Barbour, Ethics in an Age of Technology: The Gifford Lectures 1989-1991, vol. 2 (New York: HarperCollins Publishers, 1993), 3-25.

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Faramelli, Norman J. Technethics. New York: Friendship Press, 1971.

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Shinn, Roger. Forced Options: Social Decisions for the 21st Century. San Francisco: Harper and Row, 1982.

Shinn, Roger, and Paul Abrecht, eds. Faith and Science in an Unjust World: Report of the World Council of Churches’ Conference on Faith, Science, and the Future. 2 vols. Geneva: World Council of Churches, 1981.

Xu, Tao, Joyce Jin, Cassie Gregory, James J. Hickman, and Thomas Boland. “Inkjet Printing of Viable Mammalian Cells.” Biomaterials 26 (2005): 93-99.

Zilberman, David, Holly Ameden, and Matin Qaim. “The Impact of Agricultural Biotechnology on Yields, Risks, and Biodiversity in Low-Income Countries.” Journal of Developmental Studies 43 (2007): 63-78.

INTRODUCTION

In the last chapter, we saw the importance of responsibility in the research, development, and use of technology, including biomedical technology. In this chapter, we will explore ways we can judge which uses of technology, or our moral choices, are the most responsible. This examination of the criteria upon which one bases such decisions is called ethical analysis. Our principal goal is to prepare you for some of the discussions that will emerge in the various topics we will cover and to suggest basic frameworks for ethical analysis.

ETHICAL ISSUES

What are ethical issues? One can think of ethical issues as the variables one considers in making a judgment or decision about which option is the best or more morally viable. Ethical issues can constitute a range of areas in the moral life-from the macro-level issues in public policy to the micro- level issues of end-of-life treatment decisions at a patient’s bedside. We cannot, however, address ethical issues in a vacuum; we need an overarching framework or structure to analyze them properly. Thus, to answer the question, How do we make ethical judgments or responsible decisions? we apply ethical theories, which are informed by the various ethical issues at stake.

ETHICAL THEORIES

In general, an ethical theory is the process by which we justify a particular decision or answer a specific normative question; a theory provides an overarching framework in which one addresses and evaluates ethical issues. Ethical theories organize complex information and competing values and interests, and help us formulate answers to questions such as What should I do? What kind of person should I be? or What is the right course of action? The main purpose of a theory is to provide consistency and coherence in our decision making. That is, an ethical theory gives us a common approach to various problems. If we have a theory, we do not have to figure out where to begin each time we meet a new problem. A theory also allows us to develop some degree of consistency in our decision making; we aim at reliable patterns of practical reason, not whimsical emotional or uncritical reactions. We will begin to see how different values relate to one another. If we are consistent and coherent in our decision making, we will have a greater degree of internal unity and integrity in our decision making. Given the complexity of problems in bioethics, these qualities are extremely worthwhile.

One can organize different kinds of ethical theories in two categories: action-based theories and character-based theories. There are two very basic sets of moral questions one can ask.’ The first

kind of questions has to do with human behavior in action: an ethics of doing. The second kind of questions has to do with being human itself: an ethics of being. Generally speaking, all ethical theories address aspects of the moral life: what it is, how to live it, and so on. Action-based ethical theories are basically oriented to answering ethical questions of the first kind-ethics of doing. They attempt to figure out what is the right or good thing to do. We already discussed two kinds of action- based theories (deontology and teleology) in chapter 1. Character-based ethical theories, in the broadest sense of the term, are basically oriented to answering ethical questions of the second kind- ethics of being. They attempt to figure out who a good person is and what such a person ought to do.

Our goal in this section is to introduce the basic structures of various ethical theories and briefly sketch some advantages and disadvantages of each. Unfortunately, we cannot provide a thorough examination of ethical theories that many moral philosophers have proffered. Instead, we have provided a list of works in the bibliography regarding moral philosophy and theology of ethical theory. Thus, this section is not exhaustive of (a) the variety of ethical theories or (b) the analyses of them.

Action-Based Ethical Theories

Action-based ethical theories address moral questions pertaining to human behavior in action. In this regard, an ethics of doing can move in two directions: an evaluation of the means (the act, process, or way a human behaves) or an evaluation of the ends (the ends, outcomes, or consequences of the particular human behavior). On the one hand, we saw in chapter 1 that teleological ethical theories, like consequentialism, assess the values, goods, benefits, or utility in relation to the disvalues, evils, harms, or burdens in the results of a human action. Deontological ethical theories, on the other hand, assess the action itself by reference to particular rules, duties, or norms, which ask primarily whether the means constitute or violate such duties.

Teleological Ethics. An action-based ethical theory, like consequentialism, answers the question, What should I do? by considering the consequences of various options in a decision. That is, what is ethical is the option that brings about consequences that have the greatest number of advantages over disadvantages or that generate the greatest good for the greatest number of people. Basically, in this theory, one determines what is moral by looking to outcomes, to consequences, and to the situation.

The ethical theories of situation ethics and utilitarianism are common types of action-based, consequentialist ethical theories. We discussed situation ethics in but another common consequentialist theory is utilitarianism, which Jeremy Bentham and John Stuart Mill developed.’ Utilitarianism states that what is moral maximizes “utility” in the consequences of an act-for example, the greatest good for the greatest number of people. A principle of utility specifies what constitutes “utility” or what is “useful.” A consequence (or set of consequences) may have utility if (on balance) it evokes happiness, including, pleasure, health, knowledge, and so forth.

The major benefit of this kind of theory is that it looks to the actual impact of a particular decision and asks how such a decision will affect people. Consequentialism is attuned to the nuances of life and seeks to be responsive to them. The major problem of this theory is that the theory itself provides no standard by which one could measure one outcome against another. That is, while being sensitive to the circumstances, consequentialism has no basis for evaluating the relative merits or problems of

one outcome against another.

Deontological Ethics. Deontological ethics looks to one’s obligations to determine what is moral. This theory answers the question What should I do? by specifying one’s obligations or moral duties. That is, the moral act is one in which one meets his or her obligations, his or her responsibilities, or fulfills his or her duties. For a deontologist, obligations and rules are primary, for only by attending to these dimensions of morality can one be sure that self-interest does not override moral obligations. The Ten Commandments, Kant’s Categorical Imperative,’ and certain forms of rights ethics are probably the most common examples of deontological ethics.

Rights ethics is a theory that resolves moral dilemmas by first determining what rights or moral claims are involved. Then one settles dilemmas in terms of a hierarchy of rights. Paramount for a person of this orientation is that the moral claims of individualstheir rights-are taken seriously. Rights may include duties, privileges, or entitlements. The duties relative to certain rights may be the duty of the subject (e.g., the right to vote implies a duty and a privilege to vote) or a duty on others (e.g., the right to privacy suggests a duty not to invade another’s privacy). The ethical theory of rights is a popular one in our American culture. Consider, for example, the central role this theory plays in abortion and health care access debates.

On the one hand, the main advantage of a rights theory is that it highlights the moral centrality of the person and his or her moral claims in a situation of ethical conflict. On the other hand, this theory does not tell us how to resolve conflicts of rights between individuals. The theory makes the claims of the individual central without telling us how to resolve potential conflicts of rights.

The major benefit of deontological ethics is the clarity and certainty of its starting point. Once the rules are known, the duties determined, or the rights identified, then what is ethical is evident. The major problem is the potential insensitivity to circumstances and consequences. By looking only at duty or rights, one may miss important aspects of a problem.

Character-Based Ethical Theories

Character-based ethical theories address moral questions dealing with who good persons are and how they ought to relate to one another. In these ways, an ethics of being deals with character traits (e.g., virtues and vices) as well as human relationships. Many philosophers have critiqued character- based ethics for being too subjective or relative to individuals or their particular communities. With feminism and the work of scholars such as Edmund Pellegrino and David Thomasma, Alasdair Maclntyre, Carol Gilligan, and others, however, ethics of being has seen a revival in recent years. We will consider briefly three kinds of character-based ethics here.

Virtue Ethics. Virtue ethics comes from a long line of philosophers and theologians dating at least all the way back to Ancient Greece. For example, Aristotle developed a virtue-based theory of ethics,’ and Thomas Aquinas built upon Aristotle’s work for Christianity. More recently, Alasdair Maclntyre revitalizes this approach to ethics; Edmund Pellegrino and David Thomasma apply it to the practice of medicine.’ James Keenan asks what virtue ethics can bring to discussions of the new genetics.` In its basic form, virtue ethics is about making a habit of good behavior; that is, making good behavior a part of who we are. A virtue, or a vice, is a character trait that describes one’s

orientation to certain goods and the behaviors that seek those goods. Like all characterbased theories, virtue ethics sees an intimate relationship between what we do and who we are. Thus, the virtue- related questions include, What would a virtuous physician do when faced with physician-assisted suicide? What (or who) is a virtuous physician? What does it mean to be a virtuous parent? By wanting to become a virtuous parent, should I use assisted reproductive technology or adopt?

Bioethics

 
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BIOL134 Experiment Design Plan

BIOL134 Experiment Design Plan. Experimental Design Plan

For your course project you are tasked with designing and carrying out a research project on plant transpiration of your own design using the Vernier instruments (see Transpiration Lab Student Guide for directions). Transpiration is the process by which moisture moves through a plant.  The process is broken down and explained in chapter 30, section 30.5 of the text book. The purpose of this assignment is to help you plan and design an experiment investigating the factors that impact plant transpiration. After this assignment is complete you will be able to conduct your experiment, collect data and prepare for the experiment analysis. During week 15 you will submit an experiment report using information from your design plan and experiment results. Please note that experiments that do not use the Vernier sensors will receive a grade of 0 so make sure you have your sensors ordered and available by week 15 when you must turn in your experiment report.

The Experimental Design Plan assignment is Due Week 6. Submit the attached experiment design sheet with answers as an attachment.

Instructions:

Look through the directions in the transpiration lab student guides. Before performing an experiment or lab, you must design and plan what is going to be tested and how you are going to test it. You must be organized and be able to communicate your results effectively.  This assignment is designed to help you organize your experiment design. Use what you have learned about the scientific method from your lab assignments to help you design an experiment on plant transpiration. You will need to conduct some background research on plant transpiration to help you design your experiment. The research will be used to help you write the introduction portion of your experiment paper.

An experiment is a research method in which you manipulate a variable or variables under very controlled conditions and examines whether any changes occur in response to the manipulation of the variable.

It is a cause and effect relationship

1. Experiment introduction & background research with references in APA format (50 pts)

Before you can design an experiment, you need to have a good understanding of the current research. You need to summarize what research is currently known about your experiment question in the introduction of your report. This part of the assignment allows you to get a jump start on that task while building valuable knowledge that will help you in your experiment design.

1) Visit the APUS library and internet to research information on plant transpiration. The program guide for natural sciences is a good starting place to begin your APUS library research: https://apus.libguides.com/natural_sciences 

2) Look through these examples of how to share background research in an introduction: https://unilearning.uow.edu.au/report/2biii1.html

Collect background information for your research experiment and use references and in text citations to back up you research. Explain any ideas or techniques that are necessary for someone to understand your experiment. At the minimum you should cover what transpiration is, what role/influence your independent variable has on enzymes, why this is important, your testable question and hypothesis. The introduction is generally 1 page long. You need to use APA formatted in text citations and references and this should be written in the 3rd person. You need to use at least 4 different academic references for your background research.

The grading in this section of the assignment is broken down as follows:

Coverage of topic including scientific question and hypothesis: 30 points

4 academic references and APA reference and citation technique: 15 points

Grammar/spelling/voice:5 points

Need tips on APA in text citations? They can be found here: https://owl.english.purdue.edu/owl/resource/560/02/

Need tips on APA reference formatting? They can be found here: https://owl.english.purdue.edu/owl/resource/560/05/

Want a handy tool that formats your references in APA for you? Visit this website: http://www.calvin.edu/library/knightcite/index.php

 

2. Identify the Independent Variable, Dependent Variable and Constants (10pts)

· Independent Variable is the variable that is manipulated. It is the variable that you change on purpose. (The CAUSE) There are many variables that can change transpiration. You will choose only 1 independent variable to test. You can choose from temperature, light, humidity, plant species, or air flow.

· Dependent Variable is the variable that we measure in response to the manipulation of the independent variable. It is a measurable change. State what are we measuring to gauge transpiration in our experiment here(The EFFECT)

· Constants are all the other variables in the experiment that must remain the same so we can see what effect the independent variable has on the dependent variable.

· The Control is used as a standard of comparison. The control is a level of the independent variable that has been changed the least or not at all.

 

 

 

3. Write a Title (5pts)

· Use the following pattern when writing a title…

The Effect of the (Independent Variable) on the (Dependent Variable)

 

4. Write a Testable Question (5pts)

Not all questions are testable!!

A testable question asks. . .

“What is the effect of the Independent Variable on the Dependent Variable?”

5. Write a Hypothesis (5pts)

A hypothesis is a prediction of the outcome of the lab. Your prediction is based on your understanding of the scientific concept.

It answers your testable question. Use the following pattern:

 

IF the (IV- how it is changing), then the DV- how you think it will change), BECAUSE (why do you think this is happening.

Example- If the IV increases, then the DV will decrease because….

6. Write your Procedures (20pts)

Procedures are a list of materials used in the experiment and the steps in performing the experimental part. Procedures are the recipe you follow in order to perform the experiment. Write these in order, in paragraph form, and using your own words. Do not simply copy and paste from the student lab guide.

7. Create your Data Table (5pts)

Data is recorded during the procedures. You need to create your data collection table for your experiment. Below is an example Data collection table. Create your own collection table using labels with the names of your variables and the correct units you are measuring. Do not collect data yet! You are just setting up the table so you are ready to collect data when it is time to run your experiment. Wait until you get feedback from this assignment to begin any data collection

·

{Insert name of Independent Variable} (insert units) {Insert name of Dependent Variable} (insert units)

 

Average { Insert name of Dependent Variable }(insert units)
  Trial 1 * Trial 2 * Trial 3*  
Control        
{Insert Treatment 1 Name}        
{Insert Treatment 2 Name}        
{Insert Treatment 3 Name}        

 

*Repeated Trials——Why repeat the experiment more than once?

Mistakes happen no matter how careful you are so if you repeat the experiment you will get more reliable data. The more repeated trials the more likely you will reduce the effect of chance errors and the more reliable your data becomes and the more confidence you can place in your data. Generally, a minimum of 3 trials is acceptable for experiments with more being better.

This is a great video that walks you through the setup steps involved in conducting the experiment:

https://www.youtube.com/watch?v=-hrMTHwiTPI

Read through the attached documents to understand how you will customize the experiment and make it your own.

~Adapted from the Hudsonville Area School District Experiment Design Cheat Sheet

BIOL134 Experiment Design Plan

 
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