Category: Natural science

How different pollutants contaminate our water resources?

Make a claim to answer the question:  How different pollutants contaminate our water resources?
Information presented in the video and the rest of the chapter will provide EVIDENCE to support your claim or you may find evidence that make you change your claim. Which you can!!  As long as the evidence supports the new claim.
When all of the evidence has been collected, you will explain the reasoning for your claim using the evidence as support
https://youtu.be/GNGKsubYJ9U

Fukushima radiation

(a) Read the posted NYT article on “Fukushima: When Radiation isn’t the Real Risk”. (b) Do a brief calculation to show how they arrive at the quoted number of expected cancers due to radiation. (c) Write a brief summary of the key argument the article is making which should influence decision makers in emergency situations. (1 page max for (b)+(c) combined.

Organisational Context

Describe in your own words what is meant by the term organizational context. Then, perform research in  Google Scholar, or a professional or peer-reviewed source and select an example of an organization with which you are familiar, or an organization that you would like to know more about. You can use a business organization, a government division or agency, a non-governmental organization, or a non-profit business as your example.

NOTE: I highly recommend you use a small to medium sized entity that has already been certified to the 14001 standard in your analysis, or you could use the organization that employs you. You will have the option of performing more detailed analyses of this organization as the class progresses. Many states have environmental leadership programs which recognize companies with certified environmental management systems. For some examples, Colorado’s Environmental Leadership Program can be found at https://www.colorado.gov/pacific/cdphe/environmental-leadership-program.

Utilizing your chosen example, describe each of the following items, as appropriate:

The external environmental conditions that can either affect the organizations purpose, or be affected by its operations;
The external cultural, social, political, legal, regulatory, financial, technological, economic, and competitive circumstances in which the organization operates;
The internal characteristics or conditions of the organization, such as its activities, products and services, strategic direction, culture, and capabilities;
Names and titles of interested parties who are affected by either the organizations decisions or its activities related to its environmental performance; and
The scope of any environmental management system the organization has implemented. If the organization has not implemented an environmental management system, define what you consider would be an appropriate scope for such a system.

Any topic (writer’s choice)

Chose from one of these two articles. OConnell, Mark. Why Would Anyone Want to Visit Chernobyl? New York Times Magazine, March 29, 2020. https://www.nytimes.com/interactive/2020/03/24/magazine/chernobyl-tourism.html.
Popkin, Gabriel. Can Genetic Engineering Bring Back the American Chestnut? The New York Times, April 30, 2020, sec. Magazine. https://www.nytimes.com/2020/04/30/magazine/american-chestnut.html.
Read the article and write an essay analyzing it from the point of view of what we have learned in this class. At the minimum, you should address the following questions: Do events described support the concept of Anthropocene? How are they related to the idea of wilderness? How do they relate to the ideas of “traditional” or “new” conservation? What issues of environmental justice are raised? Which arguments we encountered in readings for this class, are best supported by this article? (That is, think about all the readings we have done in this course, which one(s) would be most likely to cite the article you just read in support of the arguments being made by the author of the course reading?)

Feel free to use as many words as you need for your analysis, however around 1000-1500 should be enough to address the question in sufficient detail

The Pros and Cons of Using AL

M7.3 Discussion The Pros and Cons of Using AI
5 5 unread replies. 5 5 replies.

Evaluate

Complete all required readings and viewings in this week’s Study Plan before beginning this assignment.
Initial Post

We have examined a lot of the current and future applications of AI. There are several areas that are particularly prone to concerns about the ethical implications for AI, these include warfare, robotics, criminal justice, health care, and the workforce. These are areas where AI is going to be causing major disruptions to our lives. For this discussion, you will be choosing one of these topic areas to explore for both the positive and negative potentials. 

First: Select one of these topics:

    Warfare
    Robotics
    Criminal justice
    Health care
    Workforce 

Next: Go to the EC Library Resource Guide for NS110 and this module. https://libguides.excelsior.edu/NS110 (Links to an external site.) 

There you will find a collection of resources that you can use to begin researching the pros and cons of your topic. You can also use the resources provided in the module, both required and optional readings. You are encouraged to also do your own research using the EC Library or Google Scholar to locate reliable, objective sources.

Post: Your initial post should fully address each of these points about your chosen topic:

    Clearly articulate how AI is being used now and in the future for your chosen topic.
    Discuss what are the positive aspects of applying AI to your topic.
    Discuss the negative aspects to be considered when applying AI to this topic.
    Summarize your views on how our society should address the concerns raised by the application of AI in your topic, and what you think the future holds for the use of AI in our society. 

Your initial post responding to this assignment should be a podcast of no less than 2 minutes and no longer than 3 minutes. The podcast should provide a professional level of audio that covers the 4 points listed above. 

For your audio presentation, keep in mind the following:

    The audio presentation should be less than two minutes long. If youd prefer to create a video presentation, this is acceptable as well.
    Along with the audio, you need to includea written transcriptof your presentation. This can be copy/pasted into the body of your discussion board post.
    You should also include a list of any references used in your post and audio presentation, using APA format.
    If you are unable to create the audio please contact your instructor for alternative arrangements.

For tips on creating an audio presentation and uploading it to the Canvas discussion board, use these resources: recording and adding mediaPreview the document to a Canvas discussion board and reducing echo for an audio filePreview the document.

Be sure to read the feedback on your own major postings and reply to it throughout the module.
Response to Others

Once you have posted your podcast,you are required to comment on the podcasts of at least two of your classmates. You are asked to select a student whos podcast presents on a different topic than the one you presented to respond to.

Include in your reply:

    The new information you learned and at least one question you have for the author. 
    Critique of the audio quality
    Critique the presentation language 
    Critique the organization of the presentation

Your initial post is due by Thursday at 11:59 PMEST. Your responses are due by Sunday at 11:59 PM EST.
Discussion Guidelines

Always be sure that your posts are respectful, polite, and considerate. Please see the Excelsior policy Guidelines forOnlineInteraction” (Links to an external site.) if you have any questions or concerns.

Remember, when you use a quotation or paraphrase from a source, you must include the correct citation and reference. Using APA style references and in-text citations is VERY important for this course and all your college courses. TheExcelsior Library Citation Tip Sheets and Resources (Links to an external site.)will be a helpful guide.You may also wish to use a citation generator you just insert the information, and it creates the citation in the format you indicate (MLAor APA, for example). Here are 3 citation generators to choose from:

    Citation Machine (Links to an external site.)
    Bibme (Links to an external site.)
    EasyBib (Links to an external site.)

Consult the Discussion Posting Guidefor information about writing your discussion posts. It is recommended that you write your post in a document first. Check your work and correct any spelling or grammatical errors. When you are ready to make your initial post, click on “Reply.” Then copy/paste the text into the message field, and click Post Reply.

This is a post first discussion forum. You must submit your initial post before you can view other students posts. To respond to a peer, click Reply beneath her or his post and continue as with an initial post.
Evaluation

This discussion will be graded using the discussion board rubric. Please review this rubric prior to beginning your work to ensure your participation meets the criteria in place for this discussion. All discussions combined are worth 30 % of your final course grade.

References
   

Questions?

Do you have questions on the topics, content or activities? Click “Reply” to post in the discussion forum below. Please keep in mind that this is an area to which all learners in the course have access. If you have a more personal question (for example, grades or grading), please contact your instructor.

Any topic (writer’s choice)

Antibodies have been used in drug development in targeting specific tissues and part of the normal humoral immune response. Recently, new anti-cancer antibodies have been developed as a new type of chemotherapy agent.

-Identify a disease and describe how you could design a drug based on an antibody.
-Describe how this drug could enhance the immune response.
-Explain why this could be an effective treatment for that disease.
-Identify both, advantages and disadvantages, to this strategy.

Please be sure to validate your opinions and ideas with citations and references in APA format.

Any topic (writer’s choice)

Your goal is to present how you are going to synthesize 15 mmol that ester using Fischer esterification method. Narration audio of PPT no more than 15 min in length.

Slide 1-Reaction mechanism   
  Write out the full mechanism (with arrows) for the formation of the ester that was assigned (must be handwritten).

      Comment on the quantities of alcohol/acid/catalyst used in the experiment in terms of reaction kinetics and/or thermodynamic reasoning. Discuss the yield of the reaction in the above terms.

(ask yourself: how would the equilibrium of the esterification reaction change with the addition or removal of H2O/catalyst?)

Slide 2-5-Yield calculations & Procedure- step by step detailed procedure
-Show your handwritten yield calculations (picture from lab notebook is fine)
-Detailed, step-by-step procedures must include

Setting up reaction:

      Follow table from page 105 format include volumes and masses necessary to obtain 15 mmol of your assigned ester. The carboxylic acid is used in a twofold excess, compared to alcohol.

      What is the role of calcium chloride drying tube?

Product isolation:

      For the extraction prepare the scheme/flow chart representing the whole process and identifying in which layer the product is at all steps.

      Explain the role of sodium bicarbonate using reaction to support your answer.

      Comment on the role of anhydrous sodium sulfate.

Product purification:

      Explain how distillation will help you to purify your product.

Physicochemical properties of the ester & Interesting fact about your product
-Report appearance, density, scent, b.p. (can google)
-Report esters particular feature, application

(Provide literature reference for this feature. No websites, Wikipedia, etc. Only original papers!)

Where to get the data?

Chemical databases!  You will find all links here: Chemical Databases

Where do I find the literature?

Best place is SciFinder (link in Chemical Databases)

Technology and the Contemporary Environment

Hello, the research report includes a discussion of 1 of the following topics focusing on discussing the type of technology and its impact on the surrounding environment: 1. Environmental Issues 2. Water Consumptions & Treatment Objectives 3. Wastewater Treatment & Reuse 4. Air Pollution (Acid Rain, Ozone Loss) 5. Pollution & Contamination 
Attached below is the assignment guideline.

Technology and the Contemporary Environment

The assigned research paper involves a discussion of one of the following topics, specifying the type of technology and its impact on the environment;
1) Climate Change
2) Pollution and Contamination
3) Water Resources (Surace Water, Ground Water)
4) Water Consumptions and Treatment Objectives
5) Eutrophication
6) Solid Waste Management
7) Air Pollution (Acid Rain, Ozone Loss)

Fischer esterification: Narrated Powerpoint

Your goal is to present how you are going to synthesize 15 mmol that ester using Fischer esterification method. Narration audio of PPT no more than 15 min in length.

Slide 1-Reaction mechanism   
  Write out the full mechanism (with arrows) for the formation of the ester that was assigned (must be handwritten).

      Comment on the quantities of alcohol/acid/catalyst used in the experiment in terms of reaction kinetics and/or thermodynamic reasoning. Discuss the yield of the reaction in the above terms.

(ask yourself: how would the equilibrium of the esterification reaction change with the addition or removal of H2O/catalyst?)

Slide 2-5-Yield calculations & Procedure- step by step detailed procedure
-Show your handwritten yield calculations (picture from lab notebook is fine)
-Detailed, step-by-step procedures must include

Setting up reaction:

      Follow table from page 105 format include volumes and masses necessary to obtain 15 mmol of your assigned ester. The carboxylic acid is used in a twofold excess, compared to alcohol.

      What is the role of calcium chloride drying tube?

Product isolation:

      For the extraction prepare the scheme/flow chart representing the whole process and identifying in which layer the product is at all steps.

      Explain the role of sodium bicarbonate using reaction to support your answer.

      Comment on the role of anhydrous sodium sulfate.

Product purification:

      Explain how distillation will help you to purify your product.

Slide 6-Physicochemical properties of the ester & Interesting fact about your product
-Report appearance, density, scent, b.p. (can google)
-Report esters particular feature, application

(Provide literature reference for this feature. No websites, Wikipedia, etc. Only original papers!)

Where to get the data?

Chemical databases!  You will find all links here: Chemical Databases

Where do I find the literature?

Best place is SciFinder (link in Chemical Databases)