Tag: "fluids" at biology news

New study demonstrates bone protein can reverse kidney failure

...the body's blood supply healthy by removing excess fluids and wastes, as well as by producing hormones. Whe...rmful wastes accumulate in the bloodstream, excess fluids build up in the body, and red blood cell production is impeded. Once chronic kidney disease develops...

Hot proteins may sharpen DNA tests; help bioprocessing

... cataracts by keeping the proteins in the eye lens fluids from deteriorating. The polymerase chain reaction, or PCR, which is commonly used in clinical medicine, forensic science, evolutionary biology and archeology, and genetic disease diagnostics, relies on a heat stable DNA polymerase. Robb explains r...

QuikClot (TM) will be made available to public

...changes neither in size nor consistency when wound fluids are fully absorbed, rendering it easily irrigated and/or aspirated. It only took seven months for ONR to learn of QuikClot (through the Marine Corps), test it, and get it deployed to U.S. troops. It only took the FDA two weeks to approve it after th...

A tiny pump promises big time performance

...wire sends an electrical voltage to two immiscible fluids in a tiny column, perhaps as small as the diameter...site charges to each side of the column causes the fluids to oscillate, thereby simulating the action of a pump. In some ways, the tiny system works like a th...

Deadly listeriosis often occurs in clusters, research finds

...h had been obtained from the blood or other bodily fluids of victims of the disease and collected by the state agency. The researchers used two DNA typing methods to define the L. monocytogenes strains. Analysis of the DNA typing by statistical methods provided evidence for regional and time-consistent c...

DFG to establish 14 new priority programmes

...Dr. Ulrich Sommer, University of Kiel) When using fluids in micro and nanoengineering, changes in the flow patterns appear at the boundary between the macroscopic and molecular properties which have not yet been understood. The Priority Programme "Nano and Microfluidics: From Molecular Movement to Continua...

Scientists returning to field of eerie thermal spires

...r sites by at least 100 feet but also because the fluids forming these vents are heated by seawater reactin...t and chemicals until there is enough heat for the fluids to vent back into the ocean doesn't appear connected to volcanic activity and magma chambers. This ...

Highlights of American Chemical Society's national meeting in New Orleans

... properties. Other possible uses include hydraulic fluids and lubricants. ( AGRO 14 , Monday, March 24, 10:30 a.m., Hampton Inn-Convention Center, Riverside I) Food allergens Allergies to peanuts, milk and soy are among the items that will be discussed during a three-day symposium that will explore vario...

Fabricated microvascular networks could create compact fluidic factories

...imensional channels," White said. "By forcing the fluids to make right-angle turns as they wind their way u...ction, in addition to normal diffusion, causes the fluids to become well-mixed in a short linear distance." In addition to serving as highly efficient and spa...

Rockefeller scientists identify 'natural' proteins that push stem cells to produce hair, not skin

...he body's barrier to keep harmful microbes out and fluids in. The cells that reach the skin surface are dead, and sloughed off, continually replaced by inner layer cells moving outward. "Every two weeks, the epidermis is nearly brand new," she says. Adult stem cells taken from both humans and mice can be ma...

15-foot hypodermic needles provide evidence for vast oceanic crustal biosphere

...gram in 1997 that has been gushing copious crustal fluids since then. There is a chance that drill hole, sampled for work reported in both the Science and Eos articles, was contaminated during drilling or that microbes being collected for these studies were growing in the artificial environment of the steel...

New potential therapy for sickle cell disease

...ours. All patients received routine treatment with fluids and morphine. Respiratory therapists gave treatments; neither Weiner nor the patient knew which treatment was being given. Patients scored their degree of pain on a validated visual scale going from 0 to 10 centimeters. All patients were carefully m...

Discovery of iron-acquisition pathway suggests new treatments for drug-resistant Staph. infections

...in order to survive, grow and cause disease. Body fluids from humans and other mammals contain very little free iron, one of the most important defenses against infections. So bacteria have evolved specialized mechanisms to obtain iron from a host's body. Hemoglobin is the most abundent source of iron in ...

Research finds life 1000 feet beneath ocean floor

...oor, for testing and characterization, the crustal fluids from far below. "People have wondered for a long time what types of organisms might live within Earth's crust," Giovannoni said. "This has given us one of the best looks we've ever had at that environment." The researchers found organisms growing w...

Without water, the body will shut down its need to ingest food

...nce of drinking water. To examine whether drinking fluids is necessary for normal food intake, the team deprived rats of drinking water overnight while slowly infusing the water these rats normally drank into the stomach. Methodology In freely feeding Long-Evans rats, meals were separated by intervals of ...

Fluid flow technology takes a cue from fast-swimming sharks

... be used to speed the flow of fluids such as water and air. NASA, for instance, has been developing riblet technology for airplanes, sea vessels, and even swimsuits since the 1980s. Koeltzsch said it is now well understood ...

INEEL geoscientist to present NAPL contaminant modeling advance at AGU Meeting

...tiple fluids, it is very important to know how the fluids are distributed throughout the pore spaces. The sizes of the pores containing the fluids will affect how rapidly these fluids can move downward to groundwater. If the fluids contain compoun...

November GEOLOGY and GSA TODAY media highlights

...ca continental crust and infiltrated by subduction fluids with a predominant C-O-H composition. During ongoing subduction, reduction of the infiltrating fluids occurred, resulting in precipitation of carbonates and/or free carbon. When the subducted peridotite...

Nutritional supplements may combat muscle loss

...other NSBRI researchers who use the subjects' body fluids to study changes in bone, immune function and cell damage induced by bed rest. Findings from this research on nutritional supplements could benefit patients on Earth. "Muscle atrophy is common in many populations: the elderly, kids with burns, patien...

NIST chemists define and refine properties of plastic microsystems

...ese plastic microfluidics. One study looked at how fluids flowed in plastic microchannels by tracking fluorescent dye in the fluids. NIST researchers also developed an easy technique for accurately measuring fluid temperatures--an important parameter for chemical reactions. A third project spawned a method...

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