Pressure
hidePressure (symbol: p or P) is the force per unit area applied in a direction perpendicular to the surface of an object. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure.
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News tagged with pressure
Mechanism discovered by which body's cells encourage tuberculosis infection
Dec 10, 2009 |
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Scientists have discovered a signaling pathway that tuberculosis bacteria use to coerce disease-fighting cells to switch allegiance and work on their behalf. Epithelial cells line the airways and other surfaces ...
Study shows a key protein helps control blood pressure
Dec 23, 2009 |
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University of Iowa researchers have shown that a protein channel helps nerve sensors in blood vessels keep blood pressure in check. Without the protein channel, known as ASIC2, the sensors are unable to send the brain the ...
Sucking Up To Survive
Dec 10, 2009 |
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Shrink a human being down to the size of an insect, and you would no longer be able to sip lemonade from a straw. The forces that hold liquid together would simply be too great to overcome at that tiny scale.
High-blood-pressure treatment for the over-80s too aggressive, warns expert
Dec 23, 2009 |
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People over 80 years are being treated too aggressively for high blood pressure, warns an expert in an editorial in BMJ Clinical Evidence this week.
The number of 85-year-olds will increase by a third by 2020
Dec 23, 2009 |
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Health and social care provision needs to be put in place for a large increase (33%) in the 85 year old population in the UK by 2020, according to a study published today in the British Medical Journal.
Graphite oxide at high pressure opens a road to new amazing nano-materials
Nanotechnology / Nanomaterials
Dec 21, 2009 |
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(PhysOrg.com) -- New results by scientists at Umeľ University, Sweden, show that not only water but also alcohol solvents can be inserted to expand the structure of graphite oxide under high pressure conditions. The ...
COMPASS points to weight loss
21 hours ago |
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(PhysOrg.com) -- Obesity researchers at Washington University School of Medicine in St. Louis are recruiting families with overweight children for a study to help those kids, and their parents, lose weight. The two-year study, ...
Bacteria make the artificial blood vessels of the future
Dec 22, 2009 |
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The cellulose produced by bacteria could be used for artificial blood vessels in the future as it carries a lower risk of blood clots than the synthetic materials currently used for bypass operations, reveals ...
Are patients losing sleep over blood pressure monitors?
Dec 17, 2009 |
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A widely used test for measuring nighttime blood pressure may interfere with patients' sleep, thus affecting the results of the test, reports a study in an upcoming issue of Clinical Journal of the American Society of Ne ...
Septic shock: Nitric oxide beneficial after all
Dec 15, 2009 |
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Scientists at VIB and Ghent University in Flanders, Belgium have found an unexpected ally for the treatment of septic shock, the major cause of death in intensive care units. By inducing the release of nitric oxide (NO) gas ...
Smoking cessation results mixed among Ohio's Appalachian women
Dec 03, 2009 |
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In the Appalachian region of the country — where smoking rates are high, tobacco is often a cash crop and income and education levels are low — a smoking cessation effort led by non-medical professionals was successful in ...
Doctors Warn Against Holiday Heart Attack Spike
Dec 03, 2009 |
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(PhysOrg.com) -- Some studies indicate that death rates from heart attacks and stroke as well as non-heart-related causes spike during the holiday season.
Can heart disease treatments combat AMD?
Dec 01, 2009 |
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Can treatments that reduce risks for cardiovascular disease (CVD) also help combat age-related macular degeneration (AMD), an eye disease that affects millions of Americans? CVD and AMD share some risk factors-such as smoking, ...
Low-income women 4 times more likely to report fair or poor health
Nov 30, 2009 |
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Low-income women are four times more likely than higher-income women to report fair or poor health and nearly twice as likely to report a health condition that limits their basic physical activities, according to a new policy ...
