The renal arteries branch quickly into very small capillaries that make up the glomerulus of the nephron. The blood pressure within the capillaries squeezes liquid into the Bowman's capsule. This process is known as ultra-filtration. Full article >>>
MRA is often used to evaluate the arteries of the neck and brain, the thoracic and abdominal aorta, the renal arteries, and the legs (called a "run-off"). Full article >>>
(Date:8/6/2008)...,, The traffic light ahead of you is turning y... intersection, trusting that others will wait for ...n? , That depends more on experience than person...versity. Arnon Lotem, a behavioral ecologist from ...reports in the prestigious journal Nature that peo...
(Date:8/6/2008)... Scientists at the University of York have helped ...o human tissues. , The study could help in the ...nditions such as infective endocarditis. , The ... surface of the bacteria Staphylococcus aureus bin...scovery is an important step in understanding how ...
(Date:8/6/2008)... CHAMPAIGN, Ill. According to new research, old i...s on Earth, water also has been found in comets, o...ce. Now, scientists say this common fluid is not a...now it, does not exist within our bodies," said Ma...sor of Chemistry at the University of Illinois. "W...
(Date:8/6/2008)... The ability to work together and capture larger p... of nature and reach enormous colony sizes, UBC zo...n this week,s edition of the Proceedings of the N...social spiders thrive in tropical areas but dwindl... size of organisms tends to be constrained by a sc...
...can be swallowed like a pill, injected through a c...to screen for, detect, and potentially treat, canc...gle-cell size in early development stages. They w...r. , Engineering researchers at McMaster Universit...o- and nanotechnology-based bio-sensors and imagin...
...he herbicide Agent Orange affects male reproductiv...and and lowering testosterone levels, researchers ...cohort study of more than 2,000 Air Force veterans...published in the November issue of the journal En...xposure to TCDD, the most toxic dioxin contained i...
...during cell division, first described in the late ...m movies shown in biology classes, has long fascin... a key component of cell division, the "chromosome...heritance of genetic information as cells divide, ...rsity of California, San Diego (UCSD) School of Me...
...ent infection with high levels of the virus associ... by as much as 27 times, according to a study publ...ology, Biomarkers & Prevention. , Anthony Gun... and colleagues at the Karolinska Institutet in St...on-invasive cervical cancer in situ (the most comm...