Natural science | Refined Essay

Earth Evolution/Discussion

February 5, 2020 1 Comment MLA, Natural science

You will be doing a bit of research to examine the evidence for and against the modern earth being in the middle of the sixth mass extinction. Tying in to this is the idea of human-induced climate change.

Remember, a mass extinction event occurs when there is a widespread and relatively rapid loss of species, or higher-level organisms, on the earth. Approximately 98% of all species that have ever existed on the earth are now extinct, so a loss of a handful is not anything new. However, when the rate of extinction is much higher than the rate of speciation, or creation of new species, then we enter into a mass extinction event.

Using only reliable national and international news sources, along with scientific journal articles, research the current rate of extinction on the earth. Many websites will post sensationalist headlines, such as Earth to Die in Current Biodiversity Crisis, to get your attention. Be aware that many of these websites are trying to draw traffic to earn money, and they are not basing their evidence on actual facts, so be wary as you search, and always back up any opinions you have with facts you have learned in your research.

Questions that need to be answered as a discussion

In your opinion, are we currently in the middle of the sixth mass extinction? List at least three pieces of evidence to back up your claim.

How do you think our current biodiversity crisis will affect humans?

Should we worry about climate change? Why or why not? What worries you the most and what should we do to mitigate?

You will sometimes hear the argument that extra CO2 is good for plants, crops, and trees because it will increase photosynthesis. Using evidence from your research, choose a side to this argument and briefly give an explanation.

Much Community Scenario

February 4, 2020 6 Comments APA, Natural science

***ALL instructions and some references needed are below. Zero plagiarism and reputable sources only***

-Develop a lead poisoning education and prevention program for a mock community with a richly diverse population and a variety of potential sources of lead exposure. Details of this mock community are bulleted below.

Characteristics of Interest for Mock Community:

Older city
Population of 200,000
Population demographics. (55% white, 35% African American, 5% Hispanic, 5% Other)
Socioeconomic levels are variable.
Community and neighborhood factor large in residents sense of identity, which is true across socioeconomic levels
Public housing community with apartments built in the 1950s
Older historic section of the city undergoing renovation-gentrification
Ongoing urban renewal efforts spearheaded by city and community leaders to re-purpose abandoned spaces, including creating play grounds, parks, and community gardens.
Instructions:

Based on the above characteristics:

Identify 3 community groups or populations potentially at risk for lead exposure. For each of the three groups, Identify 2 potential sources for lead exposure and for each of these identify cultural values and practice in a community that would be relevant to the design of a lead poisoning and education prevention programs. As youre working through the assignment, there could be overlap between groups and sources of exposure and this is fine; just be sure to explain the relevance of the associations for each. The goals here is to demonstrate your understanding and awareness of how cultural values and practices in a community are relevant to the design of a public health program.

Discuss briefly (a few sentences or a short paragraph each would be sufficient) how each cultural value and practices in a community are relevant to program design. Present your information in a bulleted essay or in a table format. Additionally, please cite source material as appropriate- using APA style.

Remember: Youre not actually designing a lead poisoning education and prevention program for submission; youre only identifying cultural values and practices in a community that would have relevance to the design and implementation of your program.

CDC https://www.cdc.gov/nceh/lead/default.htm

Lead Safe Virginia http://www.vdh.virginia.gov/leadsafe/

World Health Organization: https://www.who.int/news-room/fact-sheets/detail/lead-poisoning-and-health

Any topic (writer’s choice)

February 4, 2020 3 Comments APA, Natural science

air pollution control (“APC”) equipment.

what factors should be involved in deciding how great an effort a company should make to control the air pollutants it releases to the local and regional environment? Should cost be taken into account? For example, if the cost is above a certain threshold, then the facility does not have to spend that much for controls, likely raising the level of toxic compounds in the air surrounding the facility. Or should protection of public health be the dominant concern and the facility should install the most effective APC to reduce emissions to totally protect public health, even if it is very expensive? Even at the risk of the company getting up and moving elsewhere? What might the secondary effects be of having flexible cost requirements or of having inflexible ones?

Let’s use a make-believe facility (call it the NYMC Widget Company) with its VOC and PM emissions from last week’s example. Does the size or status of the parent company matter? Should we give NYMC Widget a break in requiring APC equipment if it is a small or struggling company? Should the quantity of emissions be the main factor in determining the need to reduce emissions or their potential health impact? How important might location issues be, such as how close the facility is to critical “receptors” of emissions , such as schools, hospitals, or nursing homes? What if NYMC Widget says it can’t afford the required APC equipment and threatens to shut down and leave the area, leaving many workers unemployed? Should local or state government be receptive or be obligated to helping?

Next-generation Polymer Fibers

February 1, 2020 5 Comments MLA, Natural science

I need term paper + presentation for my assignment. The topic is Next-generation polymer fibers. pleas follow this structure 1- you are required to identify/select 10key articles through a comprehensive literature search. 2- Pleas nots that title of term paper and half page Abstract and list of 10 references should be included. The number of papers between 12 to 15 including figures, tables and TEN references. The cited references should be in American chemical society (ACS) style format. In the end of this report, you must provide with five exercise problems (three from the presentation plus two) along with their answers Pleas intelligent question.
For the presentation format Side-1: concise title of the topic. Side-2-9: important concepts on the topic. Side-10: 3 very interesting / information questions on the topic and their answers. The presentation should be within 14 to 16 minutes. Here are some aspects/tips that I want in my presentation 1- select the most important concepts on the topic and emphasize them clearly. 2- do not but too much info on each slide. 3- one theme per slide. 4- pictures of hand drawing / writing to illustrate your ideas ere welcome, but must be clear and professional.

Questions

February 1, 2020 5 Comments APA, Natural science

1. Why is the publics perception of air quality, smoke, and pollution important? Why can individual perceptions and attitudes vary so greatly through a population? Give a few examples of different perceptions you have encountered regarding air quality/smoke/pollution, and if known, why that person had that perception. You may include your own.

2. Do you think that peoples past experience with fires and smoke will have an impact on their current perception of them? Why? Can the same past experiences result in different perceptions per person?

3. What are different ways that the public can receive advanced warning of smoke in the area due to wildfire or prescribed fire? Why is this important?