Posted on February 13th, 2010 — in Education Online, Science Stuff, University of Mathematics
What is Algebra?
It is an domain of mathematics that use letters in place of numbers to derive results for a given situation. It is this abstraction that often frightens many and thrills some. Algebra topics range from working with fractions to factoring binomials all the way to finding the inverse of a matrix. Most individuals start to learn Algebra by adding, subtracting, reducing and simplifying algebraic expressions. later on, they would move on to more advanced stages of solving algebraic equations using the greatest common factors and converting fractions in to decimals.
Exponents and Radicals and Graphing Oh My!
There are many advanced topics. To start off with there are powers. A power is the tiny number placed as superscript to a number or algebraic expression. In this example (x + y)3 where the 3 is the power and denotes the power to which that number is raised. The above algebraic expression is read, x plus y to the third power. In working with powers you can add, subtract, multiple or divide them. You can work with rational and negative exponents. If that isn’t enough to make your head spin, then you can move on to radicals. A radical, simply put, is the reversing of an power. Radical expressions are denoted by the symbol “V” and when placed next to number 4, it is read as square root of 4, which is equal to 2. The contrasting exponential equation is 2^2 which is read, 2 to the 2nd power, and equals 4. Equally with exponents, radical expressions can be added, subtracted, multiplied and divided. Radicals can be converted into powers and exponents back into roots. If you find that exponents and roots don’t really stir your interest, you could move on to graphing. Start with graphing straight lines and determining if the line is horizontal or vertical or something else. Does the line have an x-intercept or a y-intercept? Can you find the slope of the line? you master the mathematical art of graphing, you will come across a whole new world full of parabolas and hyperbolas.
Help is Available
If you are learning algebra and this all seems a little too much, don’t fret. There are many resources out there that can help you master radical inequalities, quadratic formulas and polynomials. Look for math tutors or software packages that will walk you through step-by-step process on how to solve any problem. You can also use algebra calculators or algebra solvers. any of these tools can help you become an algebra guru in very little time.
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Posted on February 11th, 2010 — in Best Health, Medical Tips + More, Science Stuff
JWH is an analgesic. It is a member of the amino alkyl indole class. JWH-018 can act as a cannabinoid agonist towards the CB1 and CB2 receptors. It has been found to produce effects similar to that of main psychoactive substance found in the cannabis plant with a longer continuance of action.
The abbreviation J.W.H. stands for John W. Huffman who is considered the inventor of JWH-018. It is a chemical first synthesized in 1995 in a university research laboratory in the US. John W Huffman earned his BS from Northwestern University and his AM and PhD from Harvard. He began his academic career at Georgia Institute of Technology (1957-60) and joined Clemson as assistant professor in 1960. He was an NSF Predoctoral Fellow at Harvard and received an NIH Career Development Award (1965-70). He was a visiting professor at Colorado State University (1982). The principal emphasis in Dr. Huffman’s research group is on the synthesis of analogues and metabolites of delta-9-tetrahydrocannabinol THC), the principal active component of marijuana. John W. Huffman has published dozen of articles about cannabinoids.
Although toxicity reports are not completed by an independant research laboratory, scientist state they are willing to trust that it is not toxic.
More info about JWH-018 toxicity reports can be found at Mindfully
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Posted on September 24th, 2009 — in Science Stuff
Today climate change is a reality that is acknowledge by even the most doubtful of skeptics. The warmer temperatures in areas where its supposed to be cool, scorching summers, and bone chilling winter have become a pattern that people cannot simply ignore. What The War About? Funny enough it seems that people are getting desperate and all are turning to bio-fuel like it’s the savior of all mankind. So what is bio-fuel? Bio-fuel is any gaseous, solid, or liquid material derived from biological materials. The argument ensues when people talk of the future. Bio-fuel’s raw materials are usually agricultural crops that are made to undergo fermentation and certain processes in order to produce bio-fuel. Energy is important. More people then ever produce their own energy and selling electricity back to the grid. The Problem Who is the world’s largest oil consumer? Those with the highest number of vehicles running their roads, countries like the US, England and generally most of the European nations. When you think about it bio-fuel is made from corn, sugarcane, palm oil, vegetable oil, and etc; where do these agricultural crops come from? Third World Countries. In Mexico they have this “tortilla crisis”. Corn which is the basic ingredient of tortilla is now sold five times the price it used to be marketed for. The reason for the inflated prices? The demand of bio-fuel in highly developed countries has severely altered the business people’s sense of profit. Why sell for a dollar when you can for 5 because the demand is now higher. Who Suffers? The first world countries will have to export goods from the third world countries to fuel their increasing demand for energy. The third world countries are usually tropical ones located near the equator, hence a higher crop growth of corn, and all those needed to manufacture bio-fuel; but for these countries corn is food, so is sugar cane. For the first world to survive the t poorer countries must either starve in hunger or break their back working to be able to afford the price hikes of the most basic of all commodities: food. A Compromise So what should we do? We need to address the problems of the environment and pollution, but it is also not right that to solve a problem we must create one. Think about it if the agricultural countries go into decline because its people can’t afford food then who will till the land to supply the giants with endless bio-fuel? Sustainable energy is geared to sustain life, not make it harder. Since the crops needed for the production of bio-fuel can only survive in tropical countries then the governments of the more well off countries will have to invest in the agricultural countries to supply their own demand. These crops must be independent from those for local consumers. Stringent rules governing pricing and distribution must be implemented to further protect the source of the energy. Sustainable power means the world working hand in hand to create a better way of life for the future.
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Posted on August 2nd, 2009 — in Education Online, Science Stuff, University of Mathematics
Algebra is a primary branch in Mathematics, which deals with equations, inequalities, fractions and expressions. Being one of the leading arms of mathematics, it forms an whole part of basic education. Concepts in combinatorial mathematics, variables, polynomials and factorization are the main areas which algebra deals with. As you move along advance algebraic equations, you will deal with symbols and set theories which allows you to compute unknown values based on predetermined facts.
Algebra and its Roots of Geometry
Geometry brings into play the complete use of algebra to graph a circle, a hyperbola, a parabola or even finding the focus of a hyperbola. From the very basic computations of computing the midpoint of a line or the radius of a circle to the more complex operations of determining if a parabola opens down or to compute its directrix, algebra makes its presence visible to a high level of purpose in the field of geometry.
Solving Exponents and Equations in Algebra
Equipped with knowledge on how to play around with algebra, solving equations involving linear, quadratic or radicals will be no issue. Using algebraic expressions one can solve inequalities and even graph systems of fractional equations and complex inequalities. If exponents have been messing up your head, a careful grasp of algebraic expressions will relieve the pain allowing you to work through it easily. Algebra works with the Laws of exponents by facilitating one to add, subtract, divide and multiply expressions with ease and self-confidence.
Simplify Fractions and Polynomials - Try Algebra Calculators
Whether you have problems in solving, comparing or converting fractions, algebra solvers can work their magic for you. The modern software that supports solving algebraic expressions are able to solve any math problem easily and in no time. Complex matrix problems like inverse matrix and other matrix operations could be solved using algebraic calculators. Thanks to the algebraic solvers, simplifying algebraic expressions, which may involve factoring binomials or involves determination of the LCM, has now been made a very easy task.
Professional Help at an Arm’s Reach
Students can get professional help from private instructors who will provide you with a step-by-step answer for your problems. Math tutors are at your disposition for those hard problems which can get you easily bugged. The math solver applications that is widely available in today’s market provide countless options to suit a student’s every need. From calculators that cater to a specific type of algebra to ones that scan the entire scope of the subject, you will find a complete answer.
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Posted on July 23rd, 2009 — in Best Health, Science Stuff
Doctors who specialize in cancer treatment choose what type of treatment to prescribe to a patient. There are many options. There exists no one size fits all treatment course for pleural mesothelioma cancer sufferers. This is due to the cancers high mortality rate, rareness, low treatment success rate, and small number of studies to provide meaningful statistics.
While prospects for patients with mesothelioma have been bleak, doctors have been making progress. Customary treatments for cancer are surgery (removing the tumor and the tissue that surrounds it), chemotherapy (poisoning cancerous cells) and radiation (killing cancer cells with radiation) All three methods have problems. Mesothelioma patients treated with traditional radiation therapy have not responded well to it. Researches, concerned about damage to healthy tissue, are looking for ways to aim radiation directly at tumors.
The mesothelial tissue around the tumor is removed by surgery. This surgery is extensive and it is not clear how much the patient benefits. Common chemotherapy drugs that work on other types of cancer usually do not work on mesothelioma, and different combinations of chemotherapy drugs have been tried without a lot of success. As with radiation, research is going toward controlling the physical location of the treatment with emphasis on the pleural cavity.
Many advanced techniques in cancer treatment are tried on mesothelioma patients because of its high fatality rate. These include biologic therapy such as the agent interleukin 2 and anti-angiogenesis drugs such as thalidomide. The new drug pemetrexed (brand name Alimta) has shown good results in extending life with mesotheliomas..
Before acting, oncologists review the stage of mesothelioma, position of the tumor, and age and health status of the patient. Theres also photodynamic therapy and gene therapy ” two far-out new ways of attacking cancer. Patients afflicted with mesothelioma are benefitting in these clinical trials.
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Posted on June 18th, 2009 — in Best Health, Science Stuff
Cancer of the mesothelium has a few primary symptoms. The primary symptom of pleural mesothelioma is having trouble breathing due to pleural effusion ” the increase of fluid in the membrane, or pleura, around the lung. Another common symptomis chest pain because the tumor is attacking the chest wall. Symptoms may also include fatigue, loss of weight and night sweats
The most common signof patients with abdomen mesothelioma, which begins in the abdomen, is fluid buildup (known as ascites) in the abdomen causing abdominal swelling, bowel obstruction, and stomach pain.
It is key to understand that these symptoms could be caused by a myriad of diseases or conditions. But if you have experienced any of these symptoms and have had asbestos exposure, you should see your doctor.
Peritoneal mesothelioma cancer is hard to identify, because less serious conditions also cause similar symptoms. Symptoms typical for mesothelioma:
- Difficulty breathing
- Chest or lower back pain associated with an excess of fluid in the pleura
- Burning up
- Upset stomach
- Breathy voice
- Having trouble swallowing
- Coughing blood
One should not self-diagnose themselves. Sufferers of the above symptoms should not panic, and should consult their doctor. Performing a biopsy is the standard way to confirm the condition. A pathologist takes a sample of tissue from the suspected region and examines the biopsy which results in a very precise diagnosis. Biopsies are typically pain-free.
CT scans (Computed Tomography) are an option to avoid a biopsy. This is an X-ray procedure where a scanner takes many cross-sectional images as it rotates around the body. Once in a while, a dye is ingested by the patient to help define the images. CT scans have an advantage over biopsies by being easier and non-invasive, and they are considered an effective way of diagnosing the disease. Opinion is divided as to whether the scan is more or less cost-effective than a biopsy. If there are abnormalities, a biopsy may also be ordered to determine if a tumor exists, and if so, if the tumor is benign or malignant. It is also possible to diagnose pleural mesothelioma by testing a sample of fluid from the pleura for cancer cells.
Mesothelioma can also be screened and then diagnosed by any of these methods. Patients who may think they are at risk but do not display any symptoms are typically screened, to ensure they are not at risk to get the cancer or to catch the cancer early. Patients who have in their past inhaled asbestos, should be screened for mesothelioma.
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Posted on May 14th, 2009 — in Education Online, Science Stuff, Tuition Resources
Mechanical engineering is assumed to be the most extensive of any of the varied engineering fields of study, and on graduation holding a degree, you have numerous mechanical engineering employment opportunities from which to choose. A tremendous range of industrial programs are available, some instances include energy production and heating systems, cooling system design, and even the planning and maintenance of air conditioning; car design, heavy plant engineering and maintenance; pressure vessels and piping. Roles may be as different as employment involving business development, administration and management, and agriculture and production manufacturing. How much can I anticipate making? A salary study carried out in 2003 reported that a position in mechanical engineering in the vast majority of instances covers a 40,000 dollars to $93000 earnings range, education and of course on-the-job experience being controlling elements. An additional factor affecting your salary is the engineering field you opt for. How can I best find a role in my selected subject area?
It is a necessity to put together a well-rounded and current CV. Once you are happy with your resume, you must roll up your sleeves and put yourself out there. So, where can you discover jobs?
Job fairs: Pertinent local employment fairs should be promoted somewhere in the engineering department of your university. These fairs can give you the chance to network with the individuals responsible for recruiting.
Internships: Your college can extend assistance with internship placements. Graduating scholars are on a regular basis employed by firms where they have been an intern, internships may also have an effect on the kind of earnings you can expect.
Join groups: Participating in groups and attending group meetings delivers a means to learn new information concerning engineering, but also provides networking opportunities.
Read the newspapers: Companies who employ engineers publish adverts in the papers just the same as any other business. Check every day; submit your resume and always to follow up. Perseverance is so important. Use internet resources: Post a comprehensive resume on some of the big recruitment sites on the internet. Build up a portfolio on LinkedIn and make new business contacts. Make use of the internet to speed up the quest for the perfect position.
Getting a job involves tenacity and lots of networking. Keep your CV and details out and circulating; follow through on every last prospect; build an online persona. All these actions can help you discover the position of your dreams.
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Posted on February 10th, 2009 — in Science Stuff, Travel, Safaris, And More
The OECD has anticipated that the European Alp’s biggest 660 snowboarding areas will be trimmed to 400 by 2047. Silvia Lo Duca stated that ski resorts will hurt earlier than that date, not from a want of snow just from a universal shrinkage in purchasing power associated with the rising price of crude oil. What about climate change? Experts have showed that a doubling up of carbon dioxide levels shall raise floor temps by 5 to 7 degrees Celsius. All the same there are still some open doubts. The speed of global warming and the aftermath on the mountains climate. Several degrees Celsius warming up in the last 100 yrs has not been recorded in the last one million years. During the conclusion of the glacial period 17000 yrs ago the increase of 5 Celsius was during a period of 6 to 8 thousand years. Earlier than that La Mongie and Alpe d Huez were beneath thick ice and Val Thorens was as cold as the Arctic.
Thus what what does the future bring for mid mountain skiing France towns? Electricity problems will commence to be felt by 2015 - 18. One half of the economic output relies on oil and the French purchases 85 %. The current bill amounts to five % of GDP. If the price of crude steps up as predicted that will represent 42 % of gross domestic product, you can imagine the recession. Europe will see the cost of agrarian commodities rising, plant species will adapt because of a modification in precipitation. Many people will depart the region thanks to the summertime warmth. The regions hydro power will be a worthwhile supply of power however it’s not clear that it will be an advantage given that there will be much less snowfall, more water in the wintertime and much less in the summer.
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