Tag: "smaller" at biology news
Biosphere Lessons Can Be Applied To Space, Former Crew Co-Captain Says
...ds are: How to increase crop production in smaller
spaces. Comparing use of artificial lighting to ambiant lighting to see what ismissing. Understanding atmospheric recycling because certain nutrients can gettied up more than others. Determining recreational needs of the c...
Very Fruitful Collaboration Between French And German Scientists Yields Unusual Insights Into The Structure Of Membrane Proteins
... and, at room temperature, they have significantly smaller
amplitudes of motion. Contrary to the bulk mean behavior, they appear to be shielded from solvent melting effects. These experimental results quantify the dynamical heterogeneity of bacteriorhodopsin, which meet...
Increasing Frequency Of El Nino Takes Toll On Northern Hemisphere's Only
... to become increasingly low, and we know that with smaller
populationsthey're just more vulnerable to extinction." The flightless birds are among the smallest penguins, typically standing 20 to24 inches high and weighing 4 to 5 pounds. They live primarily on two islands inthe Galapagos Archipelago off the co...
Cells Say The Darndest Things
...r amount of one chemical, a dimmer light meaning a smaller
quantity. In this way, Lillard and Chiu measure th...to extend the technique to look at the contents of smaller
vesicles, such as those released by neurons in the brain. Zare says, "I think we are showing the wa...
Protecting the Beat Of Life: Test Center Studies Interaction Between Pacemakers & Electronic Article Surveillance Systems
As electronic components become smaller
and smarter, they allowdevelopment of increasingly sophisticated pacemakers, implantabledefibrillators and other medical devices that have already improved lifefor more than a million people worldwide. At the same time, growingconcern about theft fr...
Researchers Discover Way To Grow New Kidneys In Rats
... the abdominal cavity of an adult rat, it became a smaller
versionof an adult kidney. "The organs look just like normal rat kidneys," says lead scientist MarcR. Hammerman, M.D., the Chromalloy Professor of Renal Diseases in Medicine anddirector of the Renal Division. Hammerman notes that their funct...
New Biomaterial Has 'Star' Power
... Most polymers are large molecules made up of smaller
molecules linked together in a chain, but a star p...tar molecule is less than 50 nanometers, 100 times smaller
than a red blood cell. An important new property of some of these gels is that they can recogni...
Ecological Consequences Of Jasmonate-Induced Responses For Plants In Native Populations
...each successive growing season after a fire are smaller
and attacked more frequently by herbivores than those of the preceding season. It can be the most abundant species during the first growing season after a fire but it rarely persists for more than three years after fires. Hence, by studyi...
Pool Of Latently Infected, "Resting" Cells Established Early In HIV Infection
...infected, resting CD4+ T cells," says Dr. Chun. "A smaller
pool of latently infected cells would be more likely to ultimately becontrolled by the immune defenses of the patient," adds Dr. Fauci. The NIAID investigators and others are pursuing studies to identify peoplerecently exposed to HIV and to treat t...
Mechanism Discovered For Determining Early Vertebrate Body Plan: New Zebrafish Mutants Afford Deeper Look Into Embryonic Patterning
...ent of the neural crest, whereas snailhouseplays a smaller
role. Previous work postulated that the neural crest was specified later indevelopment. The Mullins team found that this important event happens muchearlier, about five hours earlier in the development of zebrafish. Time-wise,this corresponds...
Study 'Gone With The Wind' Provides Stellar Ecological Example
...d, islands. Vegetation was affected, but to amuch smaller
degree. The group found proof of several ecological principles. One is that therecovery rate of different organisms increases strongly with their ability todisperse. For instance, spiders, which produce a silk string to which theycling and ...
Duke Studies Show That Environmental Effects Of Dams Extend To Insect Life
...es in order tosurvive, and the average size of the smaller
islands is much less." She bolstered this ...cies were underrepresented in the understoryof the smaller
islands, indicating that hyper-abundance could eventually affectthe tree species composition on smal...
Scientists Show How Defects Can Improve Technology In Science Magazine's Special Issue On Materials Science
...h a shorter wavelength (such as blue) could access smaller
crevices, sothat a CD could hold several times as much information. The author reports onprogress in creating LEDs that emit blue light. Demand is quickly increasing for powerful communications media that can transmitinformation very high rates, or "...
Ancient "Jumping DNA" May Have Evolved into Key Component of Human Immune System
.... To accomplish this feat, the immunesystem uses a smaller
number of gene segments that can be shuffled and joined toone another to produce many distinct combinations. Each recombinationessentially produces a new gene, and provides an almost infinite database ofgenetic information from which to generate anti...
Study Demonstrates High Conservation Potential Of Logged Rainforest
...s co-authors, decided to do detailedinventories of smaller
trees, between 20 and 30 centimeters in diameter, ...ore had 43percent fewer different species of these smaller
trees than did unlogged sites.But the picture was far different at sites that had been given eight y...
Combination Therapy For Brain Tumors Holds Promise For Longer Survival After
...n, which is even morepromising, will be the use of smaller
compounds called peptide mimetics,"says O'Rourke. "These compounds are less complicated and work directly onthe cell surface, eliminating the need to get to the cell's nucleus, as withgene therapy." The team is currently designing human clinical tria...
Computer Simulation To Predict Forest Fires
...could have been prevented if the policy of letting smaller
fires burn to completion had been in place before 1972. The smaller
fires would have eliminated the underbrush and dead wood earlier, thus reducing the likelihood of a ...
Out On A Limb: Young Burro Receives Artificial Leg At Colorado State
...rinarians, graduates ofColorado State - Primrose's smaller
stature may help, Trotter said. The 49-year-old Lee, a longtime trail runner and ultra runner, begantelling stories at Keystone Mountain resort a decade ago. He acquired so manyprops he bought an old donkey to help carry them and add color....
Hurricane Georges Puts On A Light Show
...Bonnie, Danielle, or Earl. Hurricane Georges is smaller
than Bonnie, the hurricane that NASA and its partners closely studied earlier this season, but is still quite deadly. From its first calibration flight on Aug. 8 through today, the CAMEX-3 team - which includes aircraft from the National Oceanic a...
Phase III Results Suggest Potent Antiviral Activity For Vertex And Glaxo Wellcomes Second-Generation HIV Protease Inhibitor Agenerase TM
...e University of Central Florida. "Data generatedin smaller
studies have supported the potential clinical util...e these data are consistent with those generatedin smaller
Phase II studies which have suggested that Agenerase is a potentinhibitor of HIV," said Lynn Smiley,...
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