Brain facts

Xem 1-19 trên 19 kết quả Brain facts
  • Stroke is the commonest neurological disease in adults. It frequently results in serious morbidity and high mortality. It also has a significant impact on those who survive it and on their families, especially on their emotional wellbeing, personal social relationships and their ability to engage in gainful employment and to pursue leisure activities

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  • How in the world will you memorize everything you need to know for your next geography test? Brian P. Cleary can help! He's made up acronyms, poems, riddles, songs, and more to help those tricky geography facts stick in your brain. And better yet, this book will give you ideas for how you can create your very own painless memory tricks.

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  • Rapid technical advances in medical imaging, including its growing application to drug/gene therapy and invasive/interventional procedures, have attracted significant interest in close integration of research in life sciences, medicine, physical sciences and engineering. This is motivated by the clinical and basic science research requirement of obtaining more detailed physiological and pathological information about the body for establishing localized genesis and progression of diseases.

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  • Chemistry comprises two related but distinct activities:(i)the quest for an understanding of matter and material change,(ii)the utilization of material change for human ends.Ideally, thefirst activity provides the necessary know-how for the pursuit of the second, but in practice, the help it can give is only partial, and the second activity has to fall back on trial and error techniques in order to achieve its ends. This means that a good chemist is one who not only has a mastery of chemical theory, but also a good knowledge of chemical facts.

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  • The major sources of carbon monoxide pollution are automotive exhaust and emissions from large industrial combustion sources such as electrical power plants. Because these sources produce many contaminants in addition to carbon monoxide -- such as fine particles and nitrogen oxides -- it is often difficult to isolate the health effects of ambient carbon monoxide from those of other pollutants. In addition to carbon monoxide generated outside, there are also important indoor sources of the pollutant.

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  • Recent developments/efforts to understand aspects of the brain function at the subneural level are discussed. MicroTubules (MTs), protein polymers constructing the cytoskeleton, participate in a wide variety of dynamical processes in the cell. Of special interest to us is the MTs participation in bioinformation processes such as learning and memory, by possessing a well-known binary error-correcting code [K1(13, 26, 5)] with 64 words. In fact, MTs and DNA/RNA are unique cell structures that possess a code system.

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  • Finally, mobile element based markers are expected to be co-dominant. However, despite the fact that they are extremely useful for population genetics, all mobile element based markers have the same drawback: difficultly of data interpretation and uncertainty about the true nature of the polymorphism. Specifically, the question may arise as to whether differences in banding patterns are due to the absence or presence of retrotransposons, or are caused by some other mechanism, e.g. indels or restriction site loss.

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  • And in fact, that neuroprotection is indeed possible is demonstrated beyond doubt by the neglected survivor of that host of neuroprotectant agents: hypothermia. Hypothermia was demonstrated to be effective in a score of animal experiments, and it has now become recommended intervention in out-of-hospital cardiac arrest. Hypothermia is not a drug, but it demonstrates that neuroprotection is a reality, not a myth. Besides, it obviously shows that animal experiments were right, humans treated with hypothermia fare better than untreated ones, just like animal studies had predicted.

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  • ncluding some of the newest advances in the field of neurophysiology, this book can be considered as one of the treasures that interested scientists would like to collect. It discusses many disciplines of clinical neurophysiology that are, currently, crucial in the practice as they explain methods and findings of techniques that help to improve diagnosis and to ensure better treatment. While trying to rely on evidence-based facts, this book presents some new ideas to be applied and tested in the clinical practice.

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  • Think of the most complicated aspect of our universe, and then multiply that by infinity! Even the most enthusiastic of mathematicians and physicists acknowledge that the brain is by far the most challenging entity to understand. By design, the human brain is made up of billions of cells called neurons, which use chemical neurotransmitters to communicate with each other through connections called synapses. Each brain cell has about 2,000 synapses.

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  • Jeff Goldsmith is a Biostatistics PhD graduate from Sherman, Texas. When Jeff first thought of graduate school, he had never heard of public health. He received a recruiter’s email encouraging students with an interest in math to consider biostatistics. In researching the field, he realized biostatistics was a way he could use something he was good at to solve real world problems. Jeff’s work at the Bloomberg School focused on neuroimaging. He examined brain scan data to determine disease progression in multiple sclerosis patients.

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  • The fact is your brain craves novelty. It's constantly searching, scanning, waiting for something unusual to happen. After all, that's the way it was built to help you stay alive. It takes all the routine, ordinary, dull stuff and filters it to the background so it won't interfere with your brain's real work--recording things that matter. How does your brain know what matters? It's like the creators of the Head First approach say, suppose you're out for a hike and a tiger jumps in front of you, what happens in your brain? Neurons fire. Emotions crank up. Chemicals surge. That's...

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  • Among all the clinical indications for which radiologists, nuclear medicine physicians, neurologists, neurosurgeons, psychiatrists (and others examining disorders of the brain) order and read brain PET scans, demand is greatest for those pertaining to dementia and related disorders. This demand is driven by the sheer prevalence of those conditions, coupled with the fact that the differential diagnosis for causes of cognitive impairment is wide and often difficult to distinguish clinically.

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  • Brain Masses Mass lesions of the brain most often present as headache with or without fever or neurologic abnormalities. Infections associated with mass lesions may be caused by bacteria (particularly Nocardia), fungi (particularly Cryptococcus or Aspergillus), or parasites (Toxoplasma). Epstein-Barr virus (EBV)–associated lymphoproliferative disease may also present as single or multiple mass lesions of the brain. A biopsy may be required for a definitive diagnosis. Pulmonary Infections Pneumonia (Chap.

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  • Multiple sclerosis (MS) is not a new disease. Its effects on the brain were described in the 1830s, and it was identified as a distinct clinical entity in the 1860s. In fact, writings from the Middle Ages appear to describe individuals with this condition. MS is the most common neurological disorder of young adults; there are approximately 350,000 people with MS in the United States and an estimated 2 million patients worldwide. Research on the disorder has been energetic over recent decades. In 1996, the U.S. National Institutes of Health (NIH) spent almost $83 million on MS research.

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  • We actually create nothing of our ourselves—we merely use the creative force that activates us. And when we draw we are not using the left brain to record facts, we have shifted gears and are now using the right brain to create a little one picture story. With, of course, the facts that the left brain collected and named and itemized in former study periods. This is not a study period; this is a show and tell period (time we are not studying). Do you feel that you are too limited in knowledge? Robert Henri, that great teacher of art said...

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  • A preface rather induces a man to speak of himself, which is deemed the worst subject upon which he can speak. In history we become acquainted with things, but in a preface with the author; and, for a man to treat of himself, may be the most difficult talk of the two: for in history, facts are produced ready to the hand of the historian, which give birth to thought, and it is easy to cloath that thought in words. But in a preface, an author is obliged to forge from the brain, where he is sometimes known to...

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  • The abuse of technology is evident in some of the examples cited above. Fingers-on-the-buttons has now replaced engagement-of-the-brain with in- creasing frequency. I should also call attention to the insistence in educa- tional documents that students in K-4 be allowed to have access at all times to the calculator ([MAF], pp.57-59; [N1], p.19; [N5], p.vi; [UN]).

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  • This second edition of our book was written 20 years after the first. There have been great technological advances made during this period, advances that now make possible the recording of additional physiological measures from brain and periphery under a variety of conditions not thought possible when we wrote the first edition.

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