Download A Planet of Viruses by Carl Zimmer PDF

By Carl Zimmer

ISBN-10: 0226983358

ISBN-13: 9780226983356

Viruses are the smallest dwelling issues identified to technology, and but they carry the complete planet of their sway. We’re such a lot accustomed to the viruses that provide us colds or the flu, yet viruses additionally reason an unlimited diversity of different illnesses, together with one illness that makes humans sprout branch-like growths as though they have been timber. Viruses were part of our lives for thus lengthy, actually, that we are literally half virus: the human genome includes extra DNA from viruses than our personal genes. in the meantime, scientists are gaining knowledge of viruses far and wide they appear: within the soil, within the ocean, even in deep caves miles underground.

This attention-grabbing booklet explores the hidden global of viruses—a international that every folks inhabit. right here Carl Zimmer, renowned technology author and writer of Discover magazine’s award-winning weblog The Loom, provides the most recent examine on how viruses carry sway over our lives and our biosphere, how viruses helped provide upward push to the 1st life-forms, how viruses are generating new illnesses, how we will be able to harness viruses for our personal ends, and the way viruses will proceed to regulate our destiny for years yet to come. during this eye-opening travel during the frontiers of biology, the place scientists are increasing our knowing of existence as we all know it, we study that a few remedies for the typical chilly do extra damage to us than strong; that the world’s oceans are domestic to an remarkable 1,000,000,000,000,­000,000,000,000,000,000 viruses; and that the evolution of HIV is now in overdrive, spawning extra mutated lines than we care to visualize.

The ny occasions ebook Review calls Carl Zimmer “as high-quality a technological know-how essayist as we have.” A Planet of Viruses is bound to thrill his many fanatics and additional increase his popularity as one among America’s most dear and popular technology journalists.

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I'. I . ,::,:1', +-H-++- V6 ,: ;~! ;: : ,'" I I II I I : •. , t .. i ::1. g :;:. ":0 0 . During exercise ........ -. ::"":' ~,. : h:: j:'!. ii'j i::; ;~ .. ~:: ;;i:;;;; \\;i:i;; ;~\ ;~:~~l:. After exercise Exercise e c. g, showing ischaemic $- T depression during exercise • arteriography-coronary arteriography is the definitive test in diagnosing coronary artery disease • thallium studies- radionuclide studies with radioactive thallium are also of value in showing ischaemic areas developing in the myocardium after exercise ('cold spots') diagnosis ofmyocardial infarction history • pain- the site, character and radiation of the pain are identical with those of angina pectoris - the distinguishing features are 34 ISCHAEMIC HEART DISEASE pain much more severe more prolonged - over halfan hour and often several hours often occurs at rest, especially in bed no relief with glyceryl trinitrate • associated symptoms breathlessness often due to left ventricular failure sweating and nausea/vomiting are almost invariable dizziness due to lowered cardiac output syncope more likely than in angina "'----1f----- Pale, cold, sweating Blood pressure - may be high initially often low Basal crepitations -+LVF Pericardial friction (24-48 h) Heart sounds muffled Gallop rhythm -+ LVF Systolic murmur-+ LVF ruptured chordae septal rupture Tachycardia -anxiety LVF arrhythmia Bradycardia -+ post.

Hypertension? smoking? hypercholesterolaemia? • issue- medical treatment is largely a 'band-aid' exercise in managing effectsof IHD acute attacks: 'keep alive' home or hospital? wardorCCU? long term care: medication other measures diet ISCHAEMIC HEART DISEASE 27 lifestyle exercise • issue- surgery is largely a 'plumbing' exercise to bypass obstructed coronary arteries and increase the blood supply to ischaemic myocardium who are candidates? when should surgery be considered? what are the benefits?

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A Planet of Viruses by Carl Zimmer

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