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Wednesday, March 3, 2010

Facts About Organic Chemistry


Pertaining to the study of carbon compounds which are covalent in their molecular bonding with another element, Organic chemistry is one of the most important subparts of chemistry, and is considered to be a part of high school education expecting most educated people to have knowledge in the subject. The purview of Organic chemistry involves the reaction and behavior between various covalent carbon compounds and how their presence in common substances affects the usage methods, techniques and scope. Another area of study is the structure of organic compounds at the molecular level and inventions, tests and discoveries based on the synthesis of various organic substances.
The study of Organic chemistry by school students may be found complicated, especially with the nomenclature and various reactions that converge to a certain, may be minor characteristic of the organic substances being studied. It is an important advice that you should never skip a chapter or lesson and proceed to another. Understanding Organic chemistry requires your base to be extra strong especially due to the busy involvement the nomenclature and uniquely different behavior of different organic substances.
While learning the lessons an important tip is to use notes. Set your goals and maintain the schedule. Avoiding this can lead to a laborious session of picking up where you had left the last time.

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The World of Polymer Chemistry


Many of you have heard or learned about Polymer in school. In layman's term, it is known to many as "Plastics", just like what my mother would call these group of substances.
Polymers are an important class of covalent molecular compounds in which the molecules are very big (macromolecules) and are made up of a large number of small repeating units or molecules linked together.
There may be several thousand repeating units in a polymer molecule. These small units from which polymers are made are called Monomers.
The properties of polymers, which depend largely on the size of their molecules, are quite different from the properties of their monomers.
However in recent years advances in science have enabled scientists to produce a wide range of man-made polymers.
Polymers can be man-made (synthetic) or natural.
Examples of Natural Polymers are:
1. Protein
2. Carbohydrates
3. Fats
Examples of Synthetic Polymers are:
1. Polyethene (PE)
2. Polychloroethene or generally known as Polyvinylchloride (PVC) - shown in the image (PVC water pipes)
3. Polypropene (PP)
4. Polytetrafluoroethene (PTFE)
5. Terylene (a polyester)
6. Nylon (a polyamide)
Polymers are getting more and more usage and applications in our everyday lives these days. It is seen to be used in common items used in homes as well as sophisticated items used in engineering industries, replacing Metals to a very large extent.
Polymers have the following desirable properties that make them so commonly used these days:
1. Light (Low Density as compared to Metals)
2. Does not corrode (Most metals corrode after sometime)
3. Equally strong (some engineering polymers as compared to metals)
4. Easy to mould and shape (their melting point is lower than metals)
5. More new polymer products can be made by blending different polymers together
6. Non-brittle (additives can be added to polymer so that they are not so brittle as compared to ceramics)
We shall see more polymer products that are once made by metals, ceramics and wood in our everyday lives.

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Banks Just Don't Get It

Recently, I railed about agents charging potential buyers for the costs of a "special" negotiation team in securing the debt forgiveness. This was over and above the traditional commission being earned and I felt very strongly that buyers were being gouged. Later this week, I will have another tirade on how banks are abusing the very people they need, in order to extricate themselves from a mess, largely of their own making.

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Meanwhile, I continue to be disappointed by the demands made of buyers by the banks themselves. Many have taken to requiring a potential buyer to qualify with a "preferred" lender. You don't have to use them, of course, but you are requested to at least pre-qualify. I saw one this week that required a buyer to fill out an attached form. Among the required information was not only your social security number, but also your mother's maiden name. All this to be faxed (how very secure) to "Joe's House-Painting, Pet-Sitting and Mortgaging Emporium". In the identity theft capital of the world, as Phoenix most certainly is, this is surely a recipe for disaster. This was not even a recognized bank, although that would hardly improve the situation, but a rinky dink mortgage broker that I had never ever heard of. I would add, that I have so far not allowed a client of mine to be blackmailed in such a fashion, and I have yet to lose a deal because of it. Essentially, today's buyer is not being treated with any respect, despite being an extremely valuable commodity and the only way out of this current quagmire.
Banks are sending a very clear message. Even though you have been through the trouble of getting yourself pre-approved, they do not care. They are telling you that they do not trust their "colleagues" in the lending industry. Yet, even while they are telegraphing their mistrust, they are insisting that you place all your trust, and financial information, in them. They are arrogant beyond belief and I suggest that we, as an industry, ride them as hard as possible until they learn better manners.
More to come, stay tuned!




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Organic Chemistry to Medical Schools


Often I am asked how much a medical school admissions officer will emphasize a student's grades in organic chemistry when assessing a candidate for admission. In 2006, almost 40,000 students applied to medical school, of which less than 45% were accepted. The average applying student had a GPA of almost 3.5 and MCAT score of 27.6, while the average matriculating student had a GPA of 3.64 and an MCAT score of 30.4. Thus, it is obviously a very competitive endeavor. First, it must be acknowledged that the grade itself that one receives in organic chemistry will be duly noted be the admissions official and that an "A" will impress the most. In addition, the student's organic chemistry laboratory grade will also weigh in the admissions process. These grades are not just a part of your GPA, but are also a larger part of the "science GPA", which is also closely scrutinized by med schools.

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Yet, organic chemistry could play a much greater role in medical acceptance than just a letter grade or part of a GPA. The oft-forgotten role that organic chemistry plays in medical school admissions is in the Medical College Admissions Test (MCAT). The MCAT is separated into four sections (Physical Science, Verbal Reasoning, Writing Sample, and Biological Science) and has a perfect score of 45. While organic chemistry falls under the physical science section, what is not definitive is the amount of organic chemistry that the will comprise the section. The actual composition of the physical science section varies from exam to exam and could possibly be concentrated in organic chemistry. Should a student encounter a section heavy in organic chemistry, that student's grade in the course is going to be far less important than the effect it will have on the MCAT score. Thus, knowledge of organic chemistry is more essential to medical school admissions than just obtaining a good grade.
Studies have conclusively shown that students who have a better grasp on organic chemistry going into the MCAT are more likely to score higher on the exam and get into to medical school. We have found that the most efficient way to obtain that grasp is through comprehensive review courses. One of those is offered by a company called AceOrganicChem, which can be found at Organic Chemistry.
In conclusion, it has been shown that while the actual letter grad in organic chemistry is important, it is more important to understand the subject so as to score well on the MCAT.
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Nursing Degree Requirements

First of all, there are several degrees that you can attempt to achieve in the field of nursing. Since I am going for a BSN, I will focus mainly on the degree requirements at my school. Most bachelor degrees require about four years of school work; however, this is mainly based upon the average work loads that students take. If you decide to take more classes per semester, and in the summer, then it would be possible to get there faster. The main requirements at my college are to have the core requirements complete before entering the nursing program. I will focus mainly upon the math and science courses rather than the electives.
The core math requirements were pre-algebra or math modeling and then statistics or calculus. It only took two math courses to complete that section of the list. If you plan on going back to college to earn your nursing degree, then you may not have to retake some of these classes. I had to take two chemistry classes - each with a lab - and then two anatomy classes - each with a lab - and then one microbiology class. Note that the anatomy and chemistry classes were the more complicated courses out of the bunch. I also had to take a pharmacology class and a pre-nursing seminar.
After I completed all of those core requirements, I was ready to take the TEAS. The TEAS stands for testing of essential academic skills. The TEAS was simply a score that they factored into the judgment process for the nursing program. The requirements for getting into the nursing school are judged with three different scores. The SAT, GPA, and TEAS are factored into the score at my school.
There is not base requirement for getting into my nursing cohort, but they simply take the highest fifty scores. Note that these are the requirements for my college and that other colleges may differ. There are also many other online nursing schools that offer degrees that you may want to consider if you do not have the time to go to the actual classes.

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