| 单词 | Hg |
| 例句 | The T-shirt inside had the word “Freddie” above the box from the periodic table that contains the atomic symbol Hg. Odd One Out 2018-08-09T00:00:00Z “Doug, of Ag, Au, and Hg, which one is the symbol for silver?” Okay for Now 2011-04-05T00:00:00Z Among 213 participants, systolic blood pressure was significantly lowered by 7 to 8 mm Hg when they ate the low-sodium diet compared with high-sodium diet, and by 6 mm Hg compared with their usual diet. Cut salt, cut blood pressure 2023-11-13T05:00:00Z For example, systolic blood pressure, or blood pressure during heartbeats, decreased more than 8 millimeters of mercury, or mm Hg, while diastolic blood pressure, or blood pressure between heartbeats, decreased nearly 5 mm Hg. Prescriptions . . . for fruits and vegetables? A new study says yes — here's why 2023-08-29T04:00:00Z Never mind the adjective, I was mercury: quicksilver, Hg, hydrargyrum, ore of cinnabar, resistant to herding, incapable of assuming a fixed form. How I found myself befriending a wild fox 2022-10-22T04:00:00Z If the pressure reading of your pitot tube is 15.0 mm Hg at a speed of 200 km/h, what will it be at 700 km/h at the same altitude? College Physics for AP Courses 2015-08-12T00:00:00Z A typical barometric pressure in Redding, California, is about 750 mm Hg. Chemistry 2019-02-14T00:00:00Z The blood returning to the lungs through the pulmonary arteries has a venous PO2 = 40 mm Hg and a PCO 2 = 45 mm Hg. Biology for AP Courses 2022-06-09T00:00:00Z Ultimately, the outward pull is slightly greater than the inward pull, creating the –4 mm Hg intrapleural pressure relative to the intra- alveolar pressure. Anatomy and Physiology 2013-06-19T00:00:00Z Millimeters of mercury, or mm Hg, is a measurement of pressure. Blood pressure rose in 2020, especially in women, study says — a sign of pandemic’s hidden toll 2021-12-07T05:00:00Z How tall must a water-filled manometer be to measure blood pressures as high as 300 mm Hg? College Physics for AP Courses 2015-08-12T00:00:00Z A typical barometric pressure in Denver, Colorado, is 615 mm Hg. Chemistry 2019-02-14T00:00:00Z This would have required a blood pressure of more than 600 mm Hg, which could only have been achieved by an enormous heart. Biology for AP Courses 2022-06-09T00:00:00Z The partial pressure of carbon dioxide in the blood of the capillary is about 45 mm Hg, whereas its partial pressure in the alveoli is about 40 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Normal blood pressure is said to be 120/80 mm Hg or less, although there is decadeslong dispute about the optimal levels. The pandemic has your blood pressure rising? You’re not alone 2021-12-06T05:00:00Z The gauge pressure of the blood in the patient's vein is 8.00 mm Hg. College Physics for AP Courses 2015-08-12T00:00:00Z Visma's biggest shareholder, European buyout firm Hg, is reinvesting in the business and will put up most of the new capital, it said in the statement. GE extends chief Larry Culp’s contract by two years 2020-08-21T04:00:00Z The pressure of the atmosphere at sea level is 760 mm Hg. Biology for AP Courses 2022-06-09T00:00:00Z The partial pressure of oxygen in tissues is low, about 40 mm Hg, because oxygen is continuously used for cellular respiration. Anatomy and Physiology 2013-06-19T00:00:00Z But after performing an eye pressure test, the doctor noticed the man’s pressure was 21 mm Hg, slightly above the normal range of 12 to 20 mm Hg. Rare syndrome causes man’s eye to 'glow' 2019-11-15T05:00:00Z Mercury barometers and manometers are so common that units of mm Hg are often quoted for atmospheric pressure and blood pressures. College Physics for AP Courses 2015-08-12T00:00:00Z And the American College of Physicians recommends blood pressure meds for people 60 and older only if their systolic pressure is 150 mm Hg or higher. You’re told you have a ‘pre-disease.’ Here’s what that means. 2019-10-18T04:00:00Z She is given a drug, after which her blood pressure measures 120/80 mm Hg. Statistical pitfalls of personalized medicine 2018-11-26T05:00:00Z One third of this is 10, and when you add this to the diastolic pressure of 80, you arrive at a calculated mean arterial pressure of 90 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Iridescent yellow letters spelled out “Hg”—the chemical symbol of mercury—and “VOC,” for “volatile organic compounds.” Do Proteins Hold the Key to the Past? 2018-11-19T05:00:00Z The left side of the heart creates a pressure of 120 mm Hg by exerting a force directly on the blood over an effective area of 15.0 cm2. College Physics for AP Courses 2015-08-12T00:00:00Z In 2017, the American College of Cardiology updated its guidelines suggesting that risky high blood pressure is 130/80 mm/Hg compared to the previous recommendation of 140/90 mm/Hg. Children born through IVF at increased risk of high blood pressure: Study 2018-09-04T04:00:00Z About half of the participants received standard therapy pegged to the 140 mm Hg limit; the other half were treated more intensively, with a goal of forcing their blood pressure below 120 mm Hg. Open-data contest unearths scientific gems — and controversy 2017-03-07T05:00:00Z When this method is applied, the amount of oxygen present is expressed in terms of partial pressure of oxygen or simply pO2 and is typically recorded in units of millimeters of mercury, mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Normal blood pressure is 120/80 mm Hg or lower, according to the U.S. Sound Waves: An Rx for High Blood Pressure, Migraine? 2016-09-16T04:00:00Z Table 11.5 lists some of the measured pressures in mm Hg, the units most commonly quoted. College Physics for AP Courses 2015-08-12T00:00:00Z Current guidelines recommend a systolic pressure -- the top number in a blood pressure reading -- of below 140 mm Hg. Tighter Blood Pressure Control Could Save 100,000 U.S. Lives: Study 2016-09-15T04:00:00Z When you are given your blood pressure results your systolic BP is the larger number, typically around 120 mm Hg. HIIT: Is there a shortcut to exercise? - BBC News 2016-09-01T04:00:00Z If the value falls below 60 mm Hg for an extended time, blood pressure will not be high enough to ensure circulation to and through the tissues, which results in ischemia, or insufficient blood flow. Anatomy and Physiology 2013-06-19T00:00:00Z An optimal systolic reading is 120 mm Hg or less. For Better Heart Care, Get a Pharmacist on Your Team 2016-06-15T04:00:00Z The net pressure can become as great as 85.0 mm Hg, an abnormally large pressure that can permanently damage the optic nerve. College Physics for AP Courses 2015-08-12T00:00:00Z They were randomly assigned to one of two groups: either an intensive systolic blood pressure target of 120 mm Hg or the standard target of 140 mm Hg. Elderly Benefit From Intensive Blood Pressure Treatment 2016-05-20T04:00:00Z Strokes were significantly higher among those patients with a morning home systolic blood pressure of 145 mm Hg or higher, compared to those patients whose systolic blood pressure was less than 125 mm Hg. Do-It-Yourself Blood Pressure Checks May Help Spot Heart, Stroke Risk 2016-03-28T04:00:00Z When blood leaving an arteriole first enters a capillary bed, the CHP is quite high—about 35 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Preliminary results comparing patients whose systolic blood pressure was lowered to below 120 mm Hg versus the standard target of under 140 mm Hg were announced in September, a month after the study was halted. Intensive Blood Pressure Lowering Cuts Heart Failure, Study Says 2015-11-10T05:00:00Z The gauge pressure in the liquid attaching the lungs to the inside of the chest wall is thus negative, ranging from −4 to −8 mm Hg during exhalation and inhalation, respectively. College Physics for AP Courses 2015-08-12T00:00:00Z "It is well established that systolic blood pressure above 120 mm Hg results in a greater risk of heart disease and stroke," he said. Confirm High Blood Pressure Outside Doctor's Office, U.S. Task Force Says 2015-10-12T04:00:00Z Lowering blood pressure to less than 140 mm Hg systolic and less than 90 mm Hg diastolic with medication and lifestyle changes is the long-standing treatment target, he said. Big Swings in Blood Pressure Could Spell Trouble 2015-07-27T04:00:00Z Gradually, this initial CHP declines as the blood moves through the capillary so that by the time the blood has reached the venous end, the CHP has dropped to approximately 18 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z The statement cautions, however, against lowering blood pressure too rapidly and against lowering diastolic blood pressure below 60 mm Hg, particularly in patients over the age of 60. Doctors Halt Squabbling And Agree How To Manage Hypertension In People With Blocked Arteries 2015-03-31T04:00:00Z Bladder pressure climbs steadily from zero to about 25 mm Hg as the bladder fills to its normal capacity of 500 cm3 . College Physics for AP Courses 2015-08-12T00:00:00Z Specifically, the guidelines reinforce a target blood pressure of less than 140/90 mm Hg for those at risk for heart attack and stroke. Heart Groups Issue Updated Blood Pressure Guidelines 2015-03-31T04:00:00Z Compared to those with systolic readings below 140 mm Hg, the risk of first stroke was 2.4 times greater in Hispanics with readings of 140 to 149. Lower Blood Pressure Reduces First Stroke Risk: Study 2015-02-11T05:00:00Z One atm is equal to 760 mm Hg, which is the atmospheric pressure at sea level. Anatomy and Physiology 2013-06-19T00:00:00Z For instance, each 10 mm Hg drop was associated with a 13% reduction in mortality and a 27% reduction in stroke. Another Study Raises Questions About Blood Pressure Guidelines 2015-02-10T05:00:00Z What is more, it also causes muscles around the bladder to contract, raising the pressure to over 100 mm Hg, accentuating the sensation. College Physics for AP Courses 2015-08-12T00:00:00Z The investigators first found that a systolic level of 150 mm Hg appears to be the trigger point for serious response by heart doctors. Newly Diagnosed With High Blood Pressure? 3 Factors Affect Prognosis 2015-02-05T05:00:00Z For blacks with readings of 140 to 149, the risk of a first stroke was two times higher than in those with readings under 140 mm Hg, the investigators found. Lower Blood Pressure Reduces First Stroke Risk: Study 2015-02-11T05:00:00Z If blood oxygen levels become quite low—about 60 mm Hg or less—then peripheral chemoreceptors stimulate an increase in respiratory activity. Anatomy and Physiology 2013-06-19T00:00:00Z The American Heart Association defines normal blood pressure as systolic pressure of less than 120 mm Hg and diastolic pressure of less than 80 mm Hg. Following Blood Pressure Guidelines Saves Lives, Dollars: Study 2015-01-28T05:00:00Z High blood pressure is defined as above 140/90 mm Hg. Do Pregnant Women Need High Blood Pressure Treatment? 2015-01-28T05:00:00Z "Those are three principles that would be good to operationalize," he said, referring to the 150 mm Hg threshold, the time frame for stepping up treatment, and the time frame for follow-up. Newly Diagnosed With High Blood Pressure? 3 Factors Affect Prognosis 2015-02-05T05:00:00Z In women with systolic blood pressure readings of 140 to 149, the risk of a first stroke was nearly twice as high compared to those with readings under 140 mm Hg. Lower Blood Pressure Reduces First Stroke Risk: Study 2015-02-11T05:00:00Z The partial pressure of oxygen in alveolar air is about 104 mm Hg, whereas the partial pressure of oxygenated blood in pulmonary veins is about 100 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Severe high blood pressure is 160 mm Hg or more over 100 mm Hg or more. Following Blood Pressure Guidelines Saves Lives, Dollars: Study 2015-01-28T05:00:00Z Normal blood pressure is less than 120 mm Hg over 80 mm Hg, the American Heart Association says. Watch Upper Number on Blood Pressure for Younger Adults: Study 2015-01-27T05:00:00Z The new recommendations also call for a less strict diastolic blood pressure goal of 90 mm Hg, up from 80 mm Hg for most people. Nearly All Diabetics Should Be on Cholesterol-Lowering Drugs: Experts 2014-12-23T05:00:00Z Among men, those with levels of 140 to 149 were 34 percent more likely to suffer a stroke than those with systolic levels below 140 mm Hg. Lower Blood Pressure Reduces First Stroke Risk: Study 2015-02-11T05:00:00Z In clinical practice, this pressure is measured in mm Hg and is usually obtained using the brachial artery of the arm. Anatomy and Physiology 2013-06-19T00:00:00Z Putting that in perspective, he said a 20 mm Hg increase in systolic blood pressure doubles the risk for heart disease. BPA in Canned Goods May Raise Your Blood Pressure: Study 2014-12-08T05:00:00Z The readings were off by more than 10 mm Hg -- a potentially significant difference in a blood pressure reading -- in about 8 percent of cases. Home Blood Pressure Monitors May Occasionally Miss the Mark 2014-10-28T04:00:00Z For those who put on weight, the reading rose by an average of 4 mm Hg from 114 to 118 mm Hg. Even a Little Excess Weight Can Boost Blood Pressure: Study 2014-09-10T04:00:00Z The heart association recommends emergency care if blood pressure measured at home tops 180/110 mm Hg. ER Visits Up for High Blood Pressure 2014-09-09T04:00:00Z For example, an individual with a systolic pressure of 120 mm Hg and a diastolic pressure of 80 mm Hg would have a pulse pressure of 40 mmHg. Anatomy and Physiology 2013-06-19T00:00:00Z The authors said their findings re-affirm the more stringent blood pressure target of 140 mm Hg in this population and these results should be used to inform the debate over the new guidelines. An Old Study Fuels Debate Over Blood Pressure Guidelines 2014-08-18T04:00:00Z Between 30 percent and 32 percent of the time, the blood pressure readings were off by 5mm Hg with the home devices. Home Blood Pressure Monitors May Occasionally Miss the Mark 2014-10-28T04:00:00Z For each additional 1 g/day increase in sodium systolic and diastolic blood pressure increased by 2.11 mm Hg and 0.78 mm Hg, respectively. New Studies Fuel The Debate Over Sodium 2014-08-13T04:00:00Z An expert panel last year recommended looser guidelines for most people age 60-plus, suggesting medication not be prescribed until readings reach 150/90 mm Hg. Blood Pressure History May Affect Brain Function in Old Age 2014-06-04T04:00:00Z A persistently high pulse pressure at or above 100 mm Hg may indicate excessive resistance in the arteries and can be caused by a variety of disorders. Anatomy and Physiology 2013-06-19T00:00:00Z In my viewpoint, this hardly qualifies as ‘robust’ evidence for a target of <150 mm Hg.” An Old Study Fuels Debate Over Blood Pressure Guidelines 2014-08-18T04:00:00Z Normal blood pressure is below 120/80 mm Hg, and prehypertension is anything in the middle. Yoga may help manage blood pressure, but more research needed 2014-05-12T15:31:55Z There was also no significant difference in the drop in 24-hour ambulatory systolic blood pressure, which declined 7 mm Hg with treatment and 5 mm Hg in the sham group. Renal denervation fails to lower blood pressure in critical test 2014-03-29T13:34:39Z Experts suggest treatment with medication when blood pressure reaches 140/90 mm Hg. Blood Pressure History May Affect Brain Function in Old Age 2014-06-04T04:00:00Z Normally, the MAP falls within the range of 70–110 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Note that Cs exhibits bio-uptake, but it does not exhibit significant bio-accumulation, and does not sufficiently increase in concentration going up the food chain to pose any risk, unlike Hg or Ra. Radioactive Fukushima Waters Arrive At West Coast Of America 2014-03-17T03:57:00Z The National Institutes of Health defines high blood pressure as 140/90 mm Hg and above. Yoga may help manage blood pressure, but more research needed 2014-05-12T15:31:55Z High blood pressure, or hypertension, is defined as a reading of 140/90 mm Hg or above. Slightly elevated blood pressure also tied to strokes 2014-03-12T20:44:09Z In the clinical trials the vegetarian diet was associated with a 4.8 mm Hg drop in the systolic blood pressure and a 2.2 mm Hg drop in the diastolic blood pressure. Lower Blood Pressure Found In Vegetarians 2014-02-24T21:00:00Z Near the venous end of the capillary, the CHP has dwindled to about 18 mm Hg due to loss of fluid. Anatomy and Physiology 2013-06-19T00:00:00Z Furthermore, the median blood pressure for the population not currently being treated is 152 mm Hg. Minority Report: Five Guideline Authors Reject Change In Blood Pressure Goal 2014-01-13T22:08:00Z For those younger than 60, the committee recommended medication at levels 140 mm Hg and higher. Borderline high blood pressure tied to deaths 2013-12-24T17:09:43Z For people with diabetes or kidney disease the target was even lower, >130 mm Hg. Long Lost High Blood Pressure Guideline Turns Up In JAMA 2013-12-18T18:48:00Z You may be familiar with the idea that hypertension should be treated when your blood pressure is higher than 140/90 mm Hg. Well: 3 Things to Know About the New Blood Pressure Guidelines 2013-12-18T17:51:32Z Another way of expressing this is to say that at the venous end of the capillary, there is an NFP of −7 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Currently 82% of people with hypertension are receiving treatment, and the median systolic blood pressure of people being treated is 136 mm Hg. Minority Report: Five Guideline Authors Reject Change In Blood Pressure Goal 2014-01-13T22:08:00Z An ideal, healthy blood pressure reading is 120/80 mm Hg or less, according to the U.S. Borderline high blood pressure tied to deaths 2013-12-24T17:09:43Z Most importantly, however, for people 60 and over the new guideline establishes a more conservative, easier-to-achieve target of 150 mm Hg or lower. Long Lost High Blood Pressure Guideline Turns Up In JAMA 2013-12-18T18:48:00Z High blood pressure is considered 140/90 mm Hg or above. Self-monitoring tied to lower blood pressure: review 2013-08-05T21:49:39Z It is defined as chronic and persistent blood pressure measurements of 140/90 mm Hg or above. Anatomy and Physiology 2013-06-19T00:00:00Z Healthy levels are considered below 120 mm Hg. Cardiac rehab may benefit oldest patients 2013-07-25T19:56:26Z The American Heart Association recommends that a person's systolic blood pressure should be less than 120 mm Hg, and their diastolic blood pressure should be less than 80 mm Hg. Music device doesn't drop diabetics' blood pressure 2013-06-12T19:19:42Z The share of atmospheric anthropogenic Hg emissions represented by fluorescent lightbulbs in the United States is 1–5 percent. Tiny Nuclear Reactions Inside Compact Fluorescent Bulbs? 2013-03-14T16:35:03Z The meditating group enjoyed an average drop of 4.9 mm Hg in systolic blood pressure compared to the control group and also reported less stress and less anger. Study: Meditation Can Lower Risk of Heart Attack and Stroke 2012-11-14T17:05:22Z Pressures between 120/80 and 140/90 mm Hg are defined as prehypertension. Anatomy and Physiology 2013-06-19T00:00:00Z It is difficult to attribute a nearly 50% reduction in hard CV outcomes to a <5 mm Hg difference in systolic BP. Mysterious Disappearing Paper Finally Reappears In Another Journal 2012-11-13T21:17:17Z The exception, though, was patients whose blood pressure was poorly controlled at the study's start, meaning it was above the standard high blood pressure cutoff of 140/90 mm Hg. Home blood pressure monitors show mixed results: study 2012-11-09T00:32:17Z Therefore, a method to detect and quantify Hg derived from fluorescents would be very useful.” Tiny Nuclear Reactions Inside Compact Fluorescent Bulbs? 2013-03-14T16:35:03Z The exception, though, was patients whose blood pressure was poorly controlled at the study's start - meaning it was above the standard high blood pressure cutoff of 140/90 mm Hg. Home blood pressure monitors show mixed results 2012-11-08T17:35:33Z Thus, the NFP of 10 mm Hg drives a net movement of fluid out of the capillary at the arterial end. Anatomy and Physiology 2013-06-19T00:00:00Z At the end of the studies, those who ate the flavanol-rich dark chocolate or cocoa product saw their systolic blood pressure fall by roughly 2.8 mm Hg while their diastolic fell by 2.2 mm Hg. Flavanol-rich cocoa may reduce blood pressure a bit 2012-08-14T23:03:49Z According to the Glaucoma Research Foundation, a non-profit research organization, eye pressure in the range of 12-22 mm Hg is considered normal. Growth hormone tied to higher eye pressure in kids 2012-07-06T04:06:40Z High blood pressure is considered to be 140/90 mm Hg or higher, according to the National Institutes of Health. Doctors sometimes over-treat blood pressure: study 2012-05-29T20:47:51Z Systolic blood pressure is the first number in a blood-pressure reading, and levels of 140 mm/Hg or above are considered high. Soy supplement shows no blood pressure benefit: study 2012-05-28T00:47:48Z This difference is about 64 mm Hg: The partial pressure of oxygen in the alveoli is about 104 mm Hg, whereas its partial pressure in the blood of the capillary is about 40 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Systolic blood pressure is the first number in a blood-pressure reading; levels of 140 mm/Hg or above are considered high. Soy supplement shows no blood pressure benefit 2012-05-24T18:16:29Z People whose systolic pressure varied by 15 mm Hg or more between their two arms were at greater risk for vascular disease than those whose blood pressure readings were similar between right and left arms. Measuring blood pressure in both arms can reveal potentially serious conditions 2012-02-06T19:38:54Z After the six months the tea drinkers' systolic blood pressure -- the top number -- fell 2 mm Hg, and their diastolic blood pressure also fell about 2 mm Hg. Drinking black tea may cut blood pressure 2012-01-25T21:42:03Z Normal blood pressure is defined as an average reading no higher than 120/80 mm Hg. Swimming lowers older adults' blood pressure 2012-01-24T17:31:22Z However, the partial pressure difference is less than that of oxygen, about 5 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z A rise of maximum pressure averaging 8 mm. of Hg occurs immediately on the ingestion of food. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Normal blood pressure is usually below 140 mm Hg systolic. Study backs Novartis hypertension drug combination 2011-01-13T00:09:55Z Blood pressure readings less than 120/80 mm Hg are considered normal. Drinking black tea may cut blood pressure 2012-01-25T21:42:03Z Stage 2 hypertension refers to blood pressure that is more than 5 mm/ Hg above the 99th percentile. Sports okay for most kids with high blood pressure 2010-06-01T15:22:00Z In contrast, the partial pressure of oxygen in the blood is about 100 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z The average minimum blood pressure for healthy young men in the neighborhood of 20 years of age is 85 mm. of Hg. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The pressure in the main condenser is thereby reduced from 1 inch Hg. to � inch Hg.; a reduction of one-half. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide However, the placebo group's systolic blood pressure went up about 1 mm Hg and their diastolic blood pressure also increased about 0.5 mm Hg. Drinking black tea may cut blood pressure 2012-01-25T21:42:03Z The whole of the antiseptic property resides in the ion Hg++. The Mechanism of Life Highly active tissues, such as muscle, rapidly use oxygen to produce ATP, lowering the partial pressure of oxygen in the tissue to about 20 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Thus we get an average pulse pressure of 35 mm. of Hg. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Heated in an ignition tube is volatilized, the vapors condensing in the upper end of tube to small metallic globules of Hg. The Elements of Blowpipe Analysis Arons has shown that this is also the case with Hg terminals, but no intermittence has been detected with terminals of C, Ag or Cu. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" Nevertheless, the proportion of Hg is the same in all the solutions, and if there were any difference one would naturally expect that the ion Cy- would be more toxic than Cl- or Br-. The Mechanism of Life The partial pressure of oxygen inside capillaries is about 100 mm Hg, so the difference between the two becomes quite high, about 80 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Upon taking the blood pressure it was found to be from 170-175 mm. of Hg. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The decomposition of mercuric oxide is an example: HgO = Hg + O. 3. An Elementary Study of Chemistry If Hg be present, it is sublimed and condenses in the tube in small drops. A System of Instruction in the Practical Use of the Blowpipe Being A Graduated Course Of Analysis For The Use Of Students And All Those Engaged In The Examination Of Metallic Combinations P, As, Hg, Zn, have exceptional atomic volumes. An Introduction to Chemical Science However, the partial pressure of oxygen is lower in the maternal blood in the placenta, at about 35 to 50 mm Hg, than it is in maternal arterial blood. Anatomy and Physiology 2013-06-19T00:00:00Z However, on examining the heart it was found that there was slight hypertrophy with an accentuated second aortic sound at the base, and the blood pressure was 180 mm. of Hg. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The equation HgO = Hg + O does not tell us that it is necessary to keep the mercuric oxide at a high temperature in order that the decomposition may go on. An Elementary Study of Chemistry Paracelsus, who gave to the world the use of Hg in therapeutics, relied in large part for his diagnosis and cures upon alchemy and astrology. The Foundations of Personality Hg has an atomic weight of 200, a vapor density of 100. An Introduction to Chemical Science The difference in partial pressures between maternal and fetal blood is not large, as the partial pressure of oxygen in fetal blood at the placenta is about 20 mm Hg. Anatomy and Physiology 2013-06-19T00:00:00Z Hg, diastolic 170 mm., his urine contained considerable albumin and many casts. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z The equation representing the decomposition of mercuric oxide is HgO = Hg + O. The relative weights of the mercury and oxygen atoms are respectively 200 and 16. An Elementary Study of Chemistry Articles of gold and silver should never be brought in contact with Hg. An Introduction to Chemical Science Amalgams.—An amalgam is an alloy of Hg and another metal. An Introduction to Chemical Science Only a 10 mm Hg pressure differential across the glomerulus is required for normal GFR, so very small changes in afferent arterial pressure significantly increase or decrease GFR. Anatomy and Physiology 2013-06-19T00:00:00Z Hg lower than the systolic pressure, and consequently these figures represent the pulse pressure in the brachial artery of man. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z If a thin amalgam cover the surface of a gold ring or coin, Hg can be removed with HNO3, as Au is not attacked by it. An Introduction to Chemical Science Heat will also quickly cause Hg to evaporate from Au. An Introduction to Chemical Science Tin-foil is spread on a smooth surface and covered with Hg, and the glass is pressed thereon. An Introduction to Chemical Science Hg is reduced from the ore by Fe, Hg being distilled over and collected in water. An Introduction to Chemical Science The average maximum blood pressure for healthy young men in the neighborhood of 20 years of age is 120 mm. of Hg. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Compare the vapor density and the atomic weight of Hg, and explain. An Introduction to Chemical Science Hg is either a monad or a dyad. An Introduction to Chemical Science Various amalgams are employed for filling teeth, a common one being composed of Hg, Ag, and Sn. An Introduction to Chemical Science All soluble compounds of Hg are virulent poisons, for which the antidote is the white of egg, albumen. An Introduction to Chemical Science Just what causes the increase in blood pressure sometimes to over 270 mm. of Hg, is not definitely known. Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. 2011-10-11T02:01:07.890Z Ag is separated from the other products by adding Hg, with which it forms an amalgam. An Introduction to Chemical Science By distilling this, Hg passes over and Ag remains. An Introduction to Chemical Science Au or Ag, with Hg, forms an amalgam used for plating. An Introduction to Chemical Science Gold is rarely found combined, and has small affinity for other elements, though forming alloys with Cu, Ag, and Hg. An Introduction to Chemical Science It may be collected over Hg like other gases that are very soluble in water. An Introduction to Chemical Science Description.—Bromine at usual temperatures is a liquid element; it is the only common one except Hg; it. quickly evaporates on exposure to air. An Introduction to Chemical Science Gold-bearing quartz is pulverized, and treated with Hg to dissolve the precious metal, which is then separated from the alloy by distillation. An Introduction to Chemical Science |
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