News tagged with flow

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Stroke and heart disease trigger revealed in new research

Stroke and heart disease trigger revealed in new research

Medicine & Health / Research

created Nov 30, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Scientists have identified the trigger that leads to the arteries becoming damaged in the disease atherosclerosis, which causes heart attacks and strokes, in research published today in the ...


New tool for helping pediatric heart surgery

Physics / General Physics

created Nov 24, 2009 | popularity 5 / 5 (1) | comments 0

A team of researchers at the University of California, San Diego and Stanford University has developed a way to simulate blood flow on the computer to optimize surgical designs. It is the basis of a new tool that may help ...


A mechanical model of vocalization

Physics / General Physics

created Nov 23, 2009 | popularity not rated yet | comments 1

When people speak, sing, or shout, they produce sound by pushing air over their vocal folds -- bits of muscle and tissue that manipulate the air flow and vibrate within it. When someone has polyps or some other problem with ...


Measuring and modeling blood flow in malaria

Biology / Cell & Microbiology

created Nov 23, 2009 | popularity not rated yet | comments 0

When people have malaria, they are infected with Plasmodium parasites, which enter the body from the saliva of a mosquito, infect cells in the liver, and then spread to red blood cells. Inside the blood cells, the parasites ...


Twins joined at head successfully separated (AP)

Twins joined at head successfully separated (Update 2)

Medicine & Health / Other

created Nov 17, 2009 | popularity not rated yet | comments 0

(AP) -- A team of 16 surgeons and nurses successfully concluded 25 hours of delicate surgery Tuesday to separate twin Bangladeshi girls who had been joined at their heads, sharing blood vessels and brain ...


Over 1,000 fish species 'threatened with extinction'

Biology / Ecology

created Nov 03, 2009 | popularity not rated yet | comments 0

More than 1,000 freshwater fish species are threatened with extinction, reflecting the strain on global water resources, an updated global "Red List" of endangered species showed Tuesday.


Mending meniscals in children, improving diagnosis and recovery

Medicine & Health / Other

created Nov 02, 2009 | popularity not rated yet | comments 0

The meniscus is a rubber-like, crescent moon-shaped cartilage cushion that sits between the leg and thigh bone. Each knee has two menisci: one on the inside of the knee joint and one on the outside. In recent years, more ...


'Teapot effect' solved

Solving Teapot Effect

Physics / General Physics

created Nov 02, 2009 | popularity 4.9 / 5 (12) | comments 10

(PhysOrg.com) -- A team of scientists from France have worked out why teapots dribble at low flow rates, and how to stop them. The effect is called the "teapot effect", and solving it could finally put an ...


Heart patients running the red light on traffic restrictions

Medicine & Health / Health

created Oct 27, 2009 | popularity not rated yet | comments 0

More than half of patients with acute coronary syndrome (ACS) don't get any counselling on their ability to drive after angioplasty - and this could be putting lives in danger, Dr. Ravi Bajaj told the 2009 Canadian Cardiovascular ...


Slipper-shaped blood cells

Slipper-shaped blood cells

Physics / General Physics

created Oct 26, 2009 | popularity 3.7 / 5 (3) | comments 0

Red blood cells, which make up 45 percent of blood, normally take the shape of circular cushions with a dimple on either side. But they can sometimes deform into an asymmetrical slipper shape. A team of physicists ...


Doppler Ultrasound Helps Scientists Understand Fescue Toxicosis

Doppler Ultrasound Helps Scientists Understand Fescue Toxicosis

Biology / Other

created Oct 21, 2009 | popularity 3 / 5 (1) | comments 0

(PhysOrg.com) -- Doppler technology -- the very same technology used by meteorologists to track thunderstorms -- is being used by Agricultural Research Service (ARS) scientists to better understand the rate ...


NASA technology key component of new diagnostic aid from DynaDx

Medicine & Health / Research

created Oct 20, 2009 | popularity 5 / 5 (1) | comments 0

NASA technology will now be available to the medical community to help in the diagnosis and prediction of syndromes that affect the brain, such as stroke, dementia, and traumatic brain injury.


Study: Added oxygen during stroke reduces brain tissue damage

Medicine & Health / Neuroscience

created Oct 19, 2009 | popularity not rated yet | comments 0

Scientists have countered findings of previous clinical trials by showing that giving supplemental oxygen to animals during a stroke can reduce damage to brain tissue surrounding the clot.


Study predicts seabed response to climate change

Study predicts Australian seabed response to climate change

Space & Earth / Earth Sciences

created Oct 15, 2009 | popularity 1 / 5 (3) | comments 0

(PhysOrg.com) -- CSIRO scientists have produced the first preliminary predictions of the potential impact of climate change on the Australian seabed.


Some Canadian rivers at risk of drying up

Some Canadian rivers at risk of drying up

Space & Earth / Environment

created Oct 15, 2009 | popularity 3 / 5 (8) | comments 3

(PhysOrg.com) -- Some Canadian rivers are at risk of drying up as impacts of climate change intersect with growing water demand from the country's cities, industries and agriculture, a new WWF report has found.