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submitted by Vaibhav (0 m) on 16 Jul 2012 12:55:31 IST
Drawing atomic structure requires only a simple understanding of the components of atomic structure. If you understand how protons and electrons relate to one another, as well as how neutrons aid in comprising atomic mass, the rest is cake.1. Draw a circle on the page. For the purposes of this article, we'll use carbon as an example. The process is the same for whatever you're drawing, however. Write a letter "C" in the middle of the circle as an annotation that you're dealing with carbon.2. Determine how many protons and electrons you'll need to draw. The amount of electrons in an atom is tied to the amount of protons. However many protons
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submitted by anu (0 m) on 16 Jul 2012 12:43:25 IST
The Four Different Types of Metals and Their Contribution to MetallurgyBy Maria Veronica BuenaventuraThe earth is indeed an amazing and perfect place to live. It has the things that are necessary for us to survive. It provides with the enough resources for our needs. There is no place like earth. Humans are the highest level of organism living on this planet. We are even termed as the stewards of this place. Although plants and animals are also considered as living organisms, humans are given the chance and the will to utilize the natural resources that can be found on earth.These natural resources include plants, wood and minerals. Metal is one of the oldest minera
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submitted by Sumit (0 m) on 16 Jul 2012 12:31:31 IST
Electrochemistry, the branch of chemistry concerned with the relationship between electricity and chemical changes. It deals both with chemical reactions that produce electricity and with the application of electricity to produce chemical reactions. The production of chemical changes in a substance by passing an electric current through it is called electrolysis.An electric battery is able to produce an electric current because of the electrochemical reactions that take place within it. Electrolysis is used in a variety of industrial processes, including electroplating, the extraction of metals from ores, the refining of metals, and the production of such elements a
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submitted by Sumit (0 m) on 16 Jul 2012 12:26:08 IST
Equilibrium questions relate to a process-specific equilibrium constant (Keq). At any point, a reaction has a reaction quotient that compares the ratio of products to reactants to what that ratio is at equilibrium. Set up an "ICE" table with proper variable placement. Use the table to provide expressions applicable to equilibrium constant calculations. Given or measured data can then be used to solve for the unknown variable.1. Define reaction quotient (Q) for a given process. At equilibrium, Keq = Q. Reactions proceed towards more products if Q < Keq, or "back" toward more reactants if Q > Keq. The general chemical process aW + bX <--&g
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submitted by anu (0 m) on 16 Jul 2012 10:41:30 IST
Electromagnetism - Electrifying the World of NeuropsychologyBy Charlotte StarrWith the ever increasing development in science and technology, scientists are now looking into electromagnetism to treat several brain disorders such as depression, schizophrenia, migraines, and even obesity. This can prove to be very delicate as it affects the central part of the human body that is the brain.Used both diagnostically and therapeutically, this scientific breakthrough is called the transcranial magnetic stimulation or TMS. This method uses an electromagnetic current that enters the brain tissues thus triggering the brain's activities. Another alternative method called t
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submitted by Sanjay (0 m) on 16 Jul 2012 10:26:00 IST
Chemistry - Alkenes to AlkanesBy Karel KosmanSimple Organic Compounds Containing Carbon, Hydrocarbons With Functional GroupsCarbon (C) is present in most compounds, both inorganic and organic. Carbon is fairly unreactive, but at high temperatures is forms compounds with hydrogen, oxygen and various metals. Carbon is the only element with the ability to form chains and cyclical compounds of carbon atoms that line up next to each other in various lengths. This makes carbon the basis of organic chemistry. Thanks to carbon, more than 10 million known organisms survive, even thrive, on this Earth. In addition, there are around 200,000 known inorganic compounds which cont
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submitted by anu (0 m) on 16 Jul 2012 10:05:54 IST
Bioinformatics, Its Usage and AdvantagesAuthor: Akhill Mehra’sBioinformatics is one of the major and important fields of biological sciences. Although it is a new discipline; however, it is developing at much faster rate. There are so many experts that are associated with this field. They have sought their career in this subject, and now earning handsome amount of money. Besides gaining lucrative income, they are gaining experience and knowledge as well.Bioinformatics is expending many folds faster than the field of microbiology, thought it is directly related to the micro-organisms. The faster growth rate of bioinformatics is mainly due to research that has b
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submitted by anu (0 m) on 16 Jul 2012 09:35:23 IST
Animal Tissue - Quality of Medical Products Correlate With Source MaterialsBy John H HigginsAnimal tissue is widely used in various medical procedures with collagen proving to be a particularly valuable and accepted material for such purposes. Being one of the first biomedical materials used its properties of possessing high tensile strength and compatibility with human tissue, makes it a highly valued raw material utilised by medical practitioners and surgeons worldwide.Being the most abundant protein in the human body and the main component of skin, tendons and ligaments, collagen has received global regulatory approvals for cosmetic, mobility and life saving proc
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There comes a time in every There comes a time in every student's life when those things that you dread begin to loom on the horizon. Depending upon how confident you are about them, your horizon will either be measured in months, or maybe days. What am I talking about? Of course I mean examinations. You may be about to go into mid term mock examinations or you could be facing your final tests. Whatever your situation and whenever you are going to be sat in an examination room it is never too early to start getting ready for those tests. Thorough preparation will provide you with a strong foundation and will give you the confidence and beli
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6. Relate new information to things you already know.When you are studying unfamiliar material, take the time to think about how this information relates to things that you already know. By establishing relationships between new ideas and previously existing memories, you can dramatically increase the likelihood of recalling the recently learned information.7. Visualize concepts to improve memory and recall.Many people benefit greatly from visualizing the information they study. Pay attention to the photographs, charts and other graphics in your textbooks. If you do not have visual cues to help, try creating your own. Draw charts or figures in the margins of y
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Do you find yourself forgetting where you left your keys or blanking out information on important tests? Fortunately, there are things that you can do to help improve your memory. Before your next big exam, be sure to check out some of these tried and tested techniques for improving memory. These strategies have been established within cognitive psychology literature to improve memory, enhance recall and increase retention of information.1. Focus your attention on the materials you are studying.Attention is one of the major components of memory. In order for information to move from short-term memory into long-term memory, you need to actively attend to t
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submitted by Bharati (65 m) on 12 Jul 2012 17:58:16 IST
All India Pre-medical and Pre- Dental Exam (AIPMT) conducted by CBSE lets you compete for 15% seats in all medical colleges in the country except Andra Pradesh.So in effect you complete for just over 2100 seats in about 120 colleges. But anyone getting ranks within 3000 could have a fair chance of gaining admission, since toppers in AIPMT also would top in other medical colleges. Examination structurePrevious year, half the paper focused on Biology (25 questions from Botany. 35 from Zoology). And physics and Chemistry made up the remaining 60 questions.Remember, Biology plays a crucial role in the AIPMT exam, not only because it accounts for a bulk of the questions,
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submitted by anu (0 m) on 12 Jul 2012 17:48:52 IST
Are you preparing for medical entrance exam and board exams simultaneously? Do you find it very difficult for you to make balance your study between board exams and entrance exams like PMT. AIPMT, NEET or such others? Well, you shouldn't worry about all these and learn how to strike a balance between the entrance exams and studies for board.Here are some essential tips to strike a balance between board and entrance exams:First of all never miss out on classes whether it is your school, college or coaching classes;don't miss out on a single one. Even the last class before exam can give you a new information for tough subjects/topics.Set your goal clearl
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submitted by Sanjay (0 m) on 12 Jul 2012 17:03:27 IST
Every year, lakhs of students appear for competitive exams such as the PMT, AIEEE, BITSAT and IIT-JEE. And the competition is getting tougher, every year! But few of them sail through the exam with high score. Here I am giving some valuable tips that will help you to crack medical entrance exam with good rank. Suggested Books for Medical Entrance ExamsAlways give first preference to NCERT books. Objective-type questions, particularly for AIPMT and DPMT (Delhi Pre-Medical Test), are picked directly from NCERT books.Once you clear your basics from NCERT books, you can lay your hands on other reference books like AC Dutta for Botany (Oxford Publication), HC Verma for P
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submitted by Anisha (0 m) on 11 Jul 2012 18:12:11 IST
Facts About Organic ChemistryBy Pauline GoPertaining 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
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submitted by Sanjay (0 m) on 11 Jul 2012 17:57:39 IST
Some science classes will require students to memorize the periodic table of elements. However, even if this is not a requirement, having the table memorized may still come in handy, especially in more advanced courses. At first glance, the periodic table is intimidating, full of unfamiliar symbols and numbers. Fortunately, however, there are several tricks and aids to help you memorize the table. But regardless of which method you use, you'll still have to put in a lot of time and effort.1. Memorize the mnemonic alphabet. This is a tool used by memory experts to help them relate words and letters to numbers. Each number, zero through nine, is assigned to a spec
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To cheers and standing ovations, scientists at the world's biggest atom smasher claimed the discovery of a new subatomic particle on Wednesday, calling it "consistent" with the long-sought Higgs boson — popularly known as the " God particle" — that helps explain what gives all matter in the universesize and shape. "We have now found the missing cornerstone of particle physics," Rolf Heuer, director of theEuropean Center for Nuclear Research(CERN), told scientists. He said the newly discovered subatomic particle is a boson, but he stopped just shy of claiming outright that it is the Hig
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In India, IITs are way too much hyped. I especially don’t like the society’s point of view of IITs – “Secure future wala Husband provider”.Most of the people who are sending their children into coachings have one thing in mind “Bas beta set ho jaye ji, aur kya chahiye !”. It is considered to be a 4 year training to get fat cheques. Well, it might appeal to the most but what I think of this place is completely different. To me this has been the place you meet Believers. Yes that’s it.I just want to make one thing clear, I am not at any point saying that these are the traits only found in IITs, and I do not inten
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submitted by Bharati (65 m) on 7 Jul 2012 17:01:08 IST
The British IslesAuthor: ForestThe British Isles are a group of islands that are found in the northwest coast of Europe. The British Isles are compromised of the islands of Britain and Ireland and also some over 6,000 smaller islands. The United Kingdom and Ireland are the only two sovereign states that are located in the island. The Isle of Man and the Channel islands are two dependencies of the United Kingdom though the Channel Islands are not physically part of this group of islands.Geographic OverviewGreat Britain and Ireland are the largest of the group of the 136 permanently inhabited islands. Great Britain is found to the east with an approximate area of 83,6
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The Polar RegionsAuthor: Dr Simon HardingThe differences in the physical ocean and the ocean circulation between the Arctic and the Antarctic.Let us take the differences in the physical oceans first. The Arctic Ocean is surrounded by land with few openings to the wider ocean. The Antarctic is open to the major oceans of the world. The Arctic is one of the oldest ocean basins in the world. The Antarctic was formed with the breakup of Gondwanaland. The Arctic is one of the smallest oceans whilst the Antarctic is over 35 million km square. The Arctic Ocean has an average depth of 1000m with some shallow areas such as the Chakchi Sea and broad continental shelves.The An
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