Few Brain Teasers in ECE/TCE/IN Department 1. 2. 1 -t2 1.The integral (-t) t 2 e dt evaluates to (a) -4/3 (b) 0 (c) 4/3 (d) – 2/3 Point charges = 1 nc and = 2 nc are at a distance apart. Which of the following statements are incorrect (a) force on is repulsive (b) The force on is the same in magnitude as that on Q1 (c) As the Distance between them decreases‚ the force on Q1 increases linearly. (d) The force on is along the line joining them (e) A point charge = -3 nc located at midpoint between
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Brain Enhancement Is Wrong‚ Right? BENEDICT CAREY So far no one is demanding that asterisks be attached to Nobels‚ Pulitzers or Lasker awards. Government agents have not been raiding anthropology departments‚ riffling book bags‚ testing professors’ urine. And if there are illicit trainers on campuses‚ shady tutors with wraparound sunglasses and ties to basement labs in Italy‚ no one has exposed them. Yet an era of doping may be looming in academia‚ and it has ignited a debate about policy and
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inThe so-called ‘brain drain’ from poor to rich countries is now robbing poorer countries of essential personnel like doctors‚ nurses‚ engineers‚ and the trend is set to continue‚ if not to get worse. Some people say this movement of people around the world is not a new phenomenon. Migrant workers have always been attracted by the wider choice of employment and greater opportunity in major cities in their own countries and abroad. Recently‚ as the technological age has advanced and as richer countries
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What is Brain Chemistry? Brain chemistry or neurochemistry is the complex system which allows the brain to function with the use of chemicals known as neurotransmitters which move information around in the brain. Every person’s brain chemistry is slightly different‚ and a number of things can play a role in the levels of various neurotransmitters in the brain‚ and how those chemicals affect the brain’s function. It is believed that difference in brain chemistry may explain a variety of behavioral
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half of the brain tends to function by processing information in an analytical‚ rational‚ logical‚ sequential way. The right half of the brain tends to function by recognizing relationships‚ integrating and synthesizing information‚ and arriving at intuitive insights. In other words‚ the left side of your brain deals with a problem or situation by collecting data‚ making analyses‚ and using a rational thinking process to reach a logical conclusion. The right side of your brain approaches the
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HDFS August 21‚ 2013 The Brain Brain changes well into adulthood. Neurons are electrochemical Albert Einstein had more glia cells Brain fed by blood vessels Cell body of each neuron length 600 miles Dendrites are nerve cells ears Length of neuron is the axon. Conducts electrical impulse down to the terminal buttons Terminal Buttons go to Dendrites Neurotransmitter travels across the gap between terminal buttons and dendrites. One type of glia cell make up the myelin sheath When myelin
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There are three major brain divisions. They are the cerebrum‚ the brainstem‚ and the cerebellum. The cerebrum contains 40% of the weight of the brain and is founded in the superior part of the brain. This portion of the brain has many functions and lobes which perform certain functions. The frontal lobe is involved with “activating and controlling both fine and complex motor activities.” This involves speech. It is also involved with the executive functions‚ such as reasoning and rationalizing‚ among
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1 Critical Review No. 2: His Brain‚ Her Brain Abstract As Larry Cahill ’s article “His Brain‚ Her Brain”‚ points out there has been data showing a vast “...array of structural‚ chemical and functional variations” between the sexes; but does size matter? Lawrence Summers‚ former President of Harvard‚ thought so. Men ’s brains are 13% larger than women ’s brains‚ but does that really make them more advanced in math‚ physics and science? There are other anatomical variations and some of these
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The Brain and Cognitive Functions Centuries of philosophy and science have been dedicated to unraveling the mystery behind how cognition occurs‚ how it maps to areas of the brain‚ and to what degree cognition is dependant upon these various areas in which cognitive activities are located. Modern neuroscience has helped tremendously to provide some answers as have tests on brain trama patients such as Phineas Gage which revealed startling changes in individual behavior that can be linked to damage
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Biology 315. Anatomy and Physiology I. Chapter 14. The Brain and Cranial Nerves. Tortora and Grabowski‚ 13th edition. 2012. I. Brain Organization‚ Protection‚ and Nourishment. A. Major Parts of the Brain: brain stem‚ cerebellum‚ diencephalon‚ and cerebrum B. Blood Flow Through the Brain.: substantial; 20% cardiac output at rest; Lack of blood flow > a couple of minutes = permanent damage. Glucose supply must be constant (Sx of hyper/hypoglycemia) 1. Arterial supply
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