116 résultats pour "heart"
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Heart.
situation. A Cardiac Cycle Although the right and left halves of the heart are separate, they both contract in unison, producing a single heartbeat. The sequence of events from the beginning ofone heartbeat to the beginning of the next is called the cardiac cycle. The cardiac cycle has two phases: diastole, when the heart’s chambers are relaxed, and systole,when the chambers contract to move blood. During the systolic phase, the atria contract first, followed by contraction of the ventricles. T...
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Coronary Heart Disease.
when a patient is at rest may indicate that the blood supply of the heart is not normal, and the ECG can often detect damage from a previous heart attack. In anexercise stress test, an ECG is recorded while a patient is performing physical activity such as walking on a treadmill or riding a stationary bicycle. As the intensity ofexercise increases, the doctor looks for specific changes in the ECG that indicate the heart is not getting enough oxygen. In cardiac catheterization, a long, thin, flex...
- Human Heart
- Sergeant Pepper's Lonely Hearts Club Band [The Beatles] - analyse de l'oeuvre musicale.
- ANGEL HEART de ALAN PARKER
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The tell tale heart
The tell tale heart, Poe Edgard Allan Poe American (1st well known American novelist) famous for his Gothic tales He wrote mainly short stories and poems Gothic = movement after roamnticism « dark » romanticism emotions more important than rationality a pleasing sort of terror Poe believed that work of quality should be brief and should focus on a specific single effect → a study of madness 1) The main character and his contradiction a) his own claim to sanity The main character i...
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Heart of Darkness: symbolism in the book
leading us to the good and that we have to listen to our brain. It is reason against feelings.
- Apocalypse Now Apocalypse Now, motion picture about the Vietnam War (1959-1975) patterned after Joseph Conrad's novella Heart of Darkness (1902).
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Circulatory System.
C Additional Functions In addition to oxygen, the circulatory system also transports nutrients derived from digested food to the body. These nutrients enter the bloodstream by passingthrough the walls of the intestine. The nutrients are absorbed through a network of capillaries and veins that drain the intestines, called the hepatic portal circulation.The hepatic portal circulation carries the nutrients to the liver for further metabolic processing. The liver stores a variety of substances, suc...
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Exercise.
broad, and most studies suggest a positive relationship between physical fitness and mental achievement. The relationship between regular aerobic exercise and cardiovascular health and longevity is well established. Regular exercise leads to a reduction in the risk ofcoronary heart disease, in which fatty deposits (plaque) form in blood vessels supplying the muscular wall of the heart, compromising oxygen delivery to the heartmuscle. In addition, with regular exercise the efficiency of the heart...
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Stress (psychology).
blood flow is diverted from the internal organs and skin to the brain and muscles. Breathing speeds up, the pupils dilate, and perspiration increases. This reaction issometimes called the fight-or-flight response because it energizes the body to either confront or flee from a threat. Another part of the stress response involves the hypothalamus and the pituitary gland, parts of the brain that are important in regulating hormones and many otherbodily functions. In times of stress, the hypothal...
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From Bulfinch's Mythology: Ibycus - anthology.
The choristers, clad in black, bore in their fleshless hands torches blazing with a pitchy flame. Their cheeks were bloodless, and in place of hair writhing and swellingserpents curled around their brows. Forming a circle, these awful beings sang their hymns, rending the hearts of the guilty, and enchaining all their faculties. It roseand swelled, overpowering the sound of the instruments, stealing the judgment, palsying the heart, curdling the blood. 'Happy the man who keeps his heart pure...
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First Aid.
IV SEVERE BLEEDING The presence of blood over a considerable area of a person’s body does not always indicate severe bleeding. The blood may ooze from multiple small wounds or besmeared, giving the appearance of more blood than is actually present. The rate at which blood is lost from a wound depends on the size and kind of blood vesselruptured. Bright red, spurting blood indicates injury to an artery while welling or steadily flowing, dark red blood indicates injury to a vein. Welling or spur...
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Bird.
I
INTRODUCTION
Bird, animal with feathers and wings. Birds are the only
B Physical Adaptations for Flight The internal body parts of all birds, including flightless ones, reflect the evolution of birds as flying creatures. Birds have lightweight skeletons in which many of themajor bones are hollow. A unique feature of birds is the furculum, or wishbone, which is comparable to the collarbones of humans, although in birds the left and rightportions are fused together. The furculum absorbs the shock of wing motion and acts as a spring to help birds breathe while they...
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Bird - biology.
B Physical Adaptations for Flight The internal body parts of all birds, including flightless ones, reflect the evolution of birds as flying creatures. Birds have lightweight skeletons in which many of themajor bones are hollow. A unique feature of birds is the furculum, or wishbone, which is comparable to the collarbones of humans, although in birds the left and rightportions are fused together. The furculum absorbs the shock of wing motion and acts as a spring to help birds breathe while they...
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Human Nutrition.
is one of the most preventable types of cancer. Nutritionists caution that most Americans need to eat more complex carbohydrates. In the typical American diet, only 40 to 50 percent of total calories come fromcarbohydrates—a lower percentage than found in most of the world. To make matters worse, half of the carbohydrate calories consumed by the typical American comefrom processed foods filled with simple sugars. Experts recommend that these foods make up no more that 10 percent of our diet, bec...
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Vitamin.
Vitamin B 1, or thiamine, promotes the metabolism of carbohydrates, enabling these nutrients to release their energy. Thiamine also plays a role in the functioning of the nervous system, muscles, and heart. The body does not store thiamine and people who are malnourished may develop thiamine deficiency. Mild thiamine deficiency cancause fatigue, muscle weakness, and loss of appetite. Severe thiamine deficiency causes beriberi, a disease characterized by muscle weakness, swelling of the heart,and...
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Human Disease.
disease can be transmitted through food infected with mutated proteins. B Spread of Infectious Disease Some pathogens are spread from one person to another by direct contact. They leave the first person through body openings, mucous membranes, and skin wounds,and they enter the second person through similar channels. For example, the viruses that cause respiratory diseases such as influenza and the common cold are spreadin moisture droplets when an infected person coughs or sneezes. A hand that...
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Medical Ethics.
medical profession. In recent years, however, the field of medical ethics has struggled to keep pace with the many complex issues raised by new technologies for creating and sustaininglife. Artificial-respiration devices, kidney dialysis, and other machines can keep patients alive who previously would have succumbed to their illnesses or injuries.Advances in organ transplantation have brought new hope to those afflicted with diseased organs. New techniques have enabled prospective parents to con...
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Excerpt from Henry VI - anthology.
SON. Ill blows the wind that profits nobody.This man whom hand to hand I slew in fightMay be possessèd with some store of crowns;And I, that haply take them from him now,May yet ere night yield both my life and themTo some man else, as this dead man doth me.—Who's this? O God! It is my father's face,Whom in this conflict I, unwares, have killed.O, heavy times, begetting such events!From London by the King was I pressed forth;My father, being the Earl of Warwick's man,Came on the part of York, pr...
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Aging - biology.
Different theories have been proposed to explain how SF works. One theory is based on the assumption that aging, and diseases that occur more frequently withadvancing age, are caused by structural damage to cells. This damage accumulates in tiny amounts each time the cell divides, eventually preventing the cell fromcarrying out normal functions. One cause of this damage may be free radicals, which are chemical compounds found in the environment and also generated by normal chemical reactions in...
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Spider (arthropod) - biology.
The spider’s abdomen is soft and saclike. On the underside of the tip of the abdomen are three pairs of spinnerets. Each spinneret is studded with many fine, hairliketubes called spigots, which produce a variety of silk threads. The spigots lead to several large silk glands inside the abdomen. Silk is formed as a liquid inside theseabdominal glands. As the silk is drawn out through the spigots, protein molecules within the silk line up parallel to one another, causing the silk to harden and form...
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Insect - biology.
they almost always have six legs. In some insects, such as beetles, the legs are practically identical, but in other insects each pair is a slightly different shape. Still otherinsects have specialized leg structures. Examples are praying mantises, which have grasping and stabbing forelegs armed with lethal spines, and grasshoppers andfleas, which have large, muscular hind legs that catapult them into the air. Mole crickets’ front legs are modified for digging, and backswimmers have hind legs de...
- The tell-tale heart suite
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Respiratory System.
rapidly, or laughs while swallowing, the swallowing reflex may not work, and food or fluid can enter the larynx. Food, fluid, or other substances in the larynx initiate acough reflex as the body attempts to clear the larynx of the obstruction. If the cough reflex does not work, a person can choke, a life-threatening situation. TheHeimlich maneuver is a technique used to clear a blocked larynx ( see First Aid). A surgical procedure called a tracheotomy is used to bypass the larynx and get air to...
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Amphibian (animal) - biology.
strong enough to kill potential predators. C Hearing, Vision, and Vocalizations Amphibians rely on their senses to find food and evade predators. Amphibians lack external ears but have well-developed internal ears. Hearing is most acute in frogs,which typically have a middle ear cavity for transferring sound vibrations from the eardrum, or tympanum, to the inner ear. Frogs and toads also use their keen hearingin communicating with one another. Using a true voice box, or larynx, and a large, exp...
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Confucian philosophy, Korean
neglected by more traditional Confucianism. Read with new eyes, an entirely new level of meaning was uncovered in the ancient texts: they discovered a Confucian foundation for the meditative cultivation of consciousness that had been a particular strength of the Buddhists, and to frame it and provide an account of sagehood equal to Buddhist talk of enlightenment, they found a complete metaphysical system, a Confucian version of the kind of thinking that had been elaborated mainly under Daoist au...
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Attention-Deficit Hyperactivity Disorder.
Although the drugs are prescribed most often to treat ADHD among children, increasingly adults are taking the drugs for ADHD. From 2002 to 2005 the number ofprescriptions written for adults reportedly increased by 90 percent. In the United States about 2.5 million children and about 1.5 million adults take ADHD drugs. Amember of the FDA advisory panel noted that adults are more likely to have a higher risk of heart problems. Most of the 25 sudden deaths, however, were amongchildren. The prelimin...
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Obesity.
of a day, contributing to the development of obesity. V TREATMENTS FOR OBESITY Obesity can become a chronic lifelong condition caused by overeating, physical inactivity, and even genetic makeup. No matter what the cause, however, obesity can beprevented or managed with a combination of diet, exercise, behavior modification, and in severe cases, weight-loss medications and surgery. A Diets The most common and conservative treatment for obesity utilizes a nutritionally balanced, low calorie diet...
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Cloning - biology.
found that such embryo cells are totipotent (able to give rise to all the different cell types in the body). Exploiting this characteristic, scientists developed three techniques to clone embryo cells: blastomere separation, blastocyst division, and somatic cell nuclear transfer. A Blastomere Separation In blastomere separation, scientists fertilize an egg cell with a sperm cell in a laboratory dish. The resulting embryo is allowed to divide until it forms a mass of aboutfour cells. Scientist...
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North Dakota - geography.
Bismarck, the growing season averages 134 days, as the average date of the last killing frost is May 11 and that of the first killing frost is September 22. The length ofthe growing season drops to about 110 days in the northerly reaches of the state. The long periods of summer sunshine at this latitude, providing as much as 16 hoursof daylight in summer, help crops to mature quickly, thus compensating somewhat for the relatively short growing season. Temperatures in the north are, on the averag...
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North Dakota - USA History.
Bismarck, the growing season averages 134 days, as the average date of the last killing frost is May 11 and that of the first killing frost is September 22. The length ofthe growing season drops to about 110 days in the northerly reaches of the state. The long periods of summer sunshine at this latitude, providing as much as 16 hoursof daylight in summer, help crops to mature quickly, thus compensating somewhat for the relatively short growing season. Temperatures in the north are, on the averag...
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Excerpt from The Two Gentlemen of Verona - anthology.
JULIA. Is he among these? HOST. Ay; but, peace! Let’s hear 'em. SONG:Who is Silvia? What is she,That all our swains commend her?Holy, fair, and wise is she;The heaven such grace did lend her,That she might admirèd be. Is she kind as she is fair?For beauty lives with kindness.Love doth to her eyes repair,To help him of his blindness;And, being helped, inhabits there. Then to Silvia let us singThat Silvia is excelling;She excels each mortal thingUpon the dull earth dwelling.To her let us garlands...
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Excerpt from Troilus and Cressida - anthology.
Enter Pandarus and Cressida, veiled PANDARUS. Come, come, what need you blush? Shame's a baby. ( To Troilus ) Here she is now: swear the oaths now to her that you have sworn to me. ( To Cressida ) What, are you gone again? You must be watched ere you be made tame, must you? Come your ways, come your ways; an you draw backward, we'll put you i'th'fills. ( To Troilus ) Why do you not speak to her? ( To Cressida ) Come, draw this curtain, and let's see your picture. Alas the day, how loath you are...
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Aerospace Medicine - astronomy.
medically as aeroembolism and popularly as the bends, leads to confusion, paralysis, or neurocirculatory collapse. The most characteristic symptoms of the bends arepain in the large joints resulting from pressure of the gas on tendons and nerves, together with spasm of the blood vessels. Preflight inhalation of pure oxygen toeliminate nitrogen from the system has proved valuable as a preventive measure. Rapid decompression, resulting from accidental failure at high altitudes of thepressure withi...
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Excerpt from Much Ado About Nothing - anthology.
BEATRICE. Alas, he gets nothing by that. In our last conflict four of his five wits went halting off, and now is the whole man governed with one; so that if he havewit enough to keep himself warm, let him bear it for a difference between himself and his horse; for it is all the wealth that he hath left, to be known a reasonablecreature. Who is his companion now? He hath every month a new sworn brother. MESSENGER. Is't possible? BEATRICE. Very easily possible: he wears his faith but as the fashio...
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From Bulfinch's Mythology: Charlemagne - anthology.
The titles of some of Archbishop Turpin's chapters will show the nature of his history. They are these: 'Of the Walls of Pampeluna, that fell of themselves.' 'Of theWar of the holy Facundus, where the Spears grew.' (Certain of the Christians fixed their spears, in the evening, erect in the ground, before the castle; and found them,in the morning, covered with bark and branches.) 'How the Sun stood still for Three Days, and the Slaughter of Four Thousand Saracens.' Turpin's history has perhap...
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Endocrine System.
thermostat. When the heat in a house falls, the thermostat responds by switching the furnace on, and when the temperature is too warm, the thermostat switches thefurnace off. Usually, the change that a hormone produces also serves to regulate that hormone's secretion. For example, parathyroid hormone causes the body toincrease the level of calcium in the blood. As calcium levels rise, the secretion of parathyroid hormone then decreases. This feedback mechanism allows for tight controlover hormon...
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The tell tale heart
PART 3 The heart and I 1. Read the first paragraph and complete the conversation between the neighbor and the police officer. ''What is the reason for your call ?'' ''I'm calling because I heard a horrible SHRIEK / SCREAM / YELL / CRY in my neighbor's house. My neighbor is a bit STRANGE / WEIRD / ODD. He lives alone with an OLD MAN. I'm afraid the OLD MAN is in danger. I think there might be FOUL PLAY. 2. Read the rest of the text. Put the different stages of the narrator's behavior in...
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Diseases of Animals.
infected animal. It may also spread in milk or in garbage that contains contaminated meat. Typical symptoms include blisters that appear on the mouth and feet;animals may become lame when their hooves degenerate. Canine distemper is a highly contagious disease caused by the paramyxovirus, which is transmitted in discharges from the nose and eyes. Symptoms begin with fever,malaise, and nasal and ocular discharges and may progress to convulsions and other nervous system disorders. Parvoviruses aff...
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Charles Dickens.
The Old Curiosity Shop broke hearts across Britain and North America when it first appeared. Later readers, however, have found it excessively sentimental, especially the pathos surrounding the death of its child-heroine Little Nell. Dickens’s next two works proved less popular with the public. Barnaby Rudge, Dickens’s first historical novel, revolves around anti-Catholic riots that broke out in London in 1780. The events in Martin Chuzzlewit become a vehicle for the novel’s theme: selfishne...
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Shark - biology.
Sharks have two-chambered hearts that are relatively small compared to the rest of their bodies. Blood flows from the heart to the gills, where it collects oxygen fromwater and then distributes it to the other organs and tissues. The small heart produces weak blood pressure, and many sharks must swim continuously to create themuscular contractions needed to circulate blood throughout their bodies. Most sharks are cold-blooded—that is, they do not generate heat by digesting food. Instead, the bod...
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Surgery.
III SURGICAL PROCEDURES Surgical procedures are classified as optional, required, elective, urgent, and emergent based on the patient’s medical condition. Optional surgery consists of operationsthat are not required but which the patient chooses to undergo as with some types of cosmetic surgery. Required surgery is performed when only surgery will correct aproblem—such as cataracts—but the surgery can be delayed for a period of weeks or months. Elective surgical procedures usually involve cond...
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The Beatles - Musik.
1963 Please, Please Me Please, Please MeLove Me DoI Saw Her Standing ThereTwist and Shout 1963 With The Beatles It Won't Be LongAll My LovingPlease Mister PostmanRoll Over BeethovenI Wanna Be Your Man 1964 Meet The Beatles I Want To Hold Your HandThis Boy 1964 Something New Things We Said TodayAnd I Love Her 1964 A Hard Day's Night A Hard Day's NightCan't Buy Me LoveI Should Have Known Better 1964 Beatles for Sale I'm A LoserEight Days A WeekEverybody's Trying To Be MyBaby 1965 Help! Help!Youre...
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Charles Dickens
I
INTRODUCTION
Charles Dickens
English author Charles Dickens ranks as one of the most popular writers in the history of world literature.
Papers of the Pickwick Club (1836-1837; 1837); The Adventures of Oliver Twist (1837-1839; 1838); The Life and Adventures of Nicholas Nickleby (1838-1839; 1839); The Old Curiosity Shop (1840-1841; 1841); Barnaby Rudge (1841); The Life and Adventures of Martin Chuzzlewit (1843-1844; 1844); Dombey and Son (1846-1848; 1848); The Personal History of David Copperfield (1849-1850; 1850); Bleak House (1852-1853; 1853); Hard Times (1854); Little Dorrit (1855-1857; 1857); A Tale of Tw...
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Excerpt from Bleak House - anthology.
patience, courage, hope; so overthrows the brain and breaks the heart; that there is not an honourable man among its practitioners who would not give—who does notoften give—the warning, 'Suffer any wrong that can be done you, rather than come here!' Who happen to be in the Lord Chancellor's court this murky afternoon besides the Lord Chancellor, the counsel in the cause, two or three counsel who are never inany cause, and the well of solicitors before mentioned? There is the registrar below...
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Influenza.
days and disappear in seven to ten days. However, coughing and fatigue may persist for two or more weeks. Death from influenza itself is rare. But influenza can aggravate underlying medical conditions, such as heart or lung disease. Invading influenza viruses produceinflammation in the lining of the respiratory tract, damage that increases the risk that secondary infections will develop. Common complications include bronchitis,sinusitis, and bacterial pneumonia, occurring most frequently in olde...
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Heredity - biology.
allele from the mother and a mutated allele from the father. In both of these cases, the child will be a carrier. The child develops the disease only if he or she receives amutated allele from each parent. When both parents are carriers, there is a 25 percent chance that a child will be disease-free, a 25 percent chance that it will have thedisease, and a 50 percent chance that it will be a carrier. Examples of genetic diseases that follow the dominant-recessive pattern include sickle-cell anemi...
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Whale - biology.
III BEHAVIOR OF WHALES Studies of whales in captivity have taught scientists much about the complex social behavior of whales. Since the late 1980s, advances in the use of satellite trackingsystems have also broadened opportunities for scientists to observe how whales behave in the wild. A Swimming and Diving Whales swim by making powerful up-and-down movements of the tail flukes, which provide thrust. The power comes from body muscles that flex the lower spine upand down in a wavelike motion...
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Excerpt from The Merchant of Venice - anthology.
A weight of carrion flesh than to receiveThree thousand ducats. I'll not answer that,But say it is my humour. Is it answered?What if my house be troubled with a rat,And I be pleased to give ten thousand ducatsTo have it baned? What, are you answered yet?Some men there are love not a gaping pig,Some that are mad if they behold a cat,And others, when the bagpipe sings i'th'nose,Cannot contain their urine; for affection,Master of passion, sways it to the moodOf what it likes or loathes. Now for you...