Tag: "behave" at biology news

Gene-Altered Mouse May Provide New Insights To Parkinson's Disease, Substance Abuse And Schizophrenia

...hers have known for many years that schizophrenics behave as if theyhave too much dopamine in the brain's limbic system, which controls emotionand behavior. Conversely, not enough dopamine contributes to clinical depression.Although therapeutic drugs for schizophrenia block dopamine receptors, theyhave limi...

Children Become Gorillas In VR Zoo

...hework. The virtual gorillas also have to look and behave like realgorillas. Using videos, anthropomorphic data and behavioral data on movementand interaction, Georgia Tech doctoral student Don Allison createdvirtual gorillas that simulate real movement and generalized behavior. "Our job was, 'Can we do s...

New Discovery About Genes Has Implications For Genetic Therapy

...hat the introns are "parasites" on the genome, and behave similar to the way retroviruses inhabit an organism. He suggested that retroviruses might even have evolved originally from these kinds of introns. "Their (the introns') only function is to replicate themselves, but in that process, they fundamen...

Suicidal Tendencies

...,"Raff writes. "As long as the cells reproduce and behave according to localnorms, they are allowed to go on living." One foot out of step, and thecell is history. The interesting thing about Raff's research is that it suggests that suicideis the cell's default setting. The death machinery is alway...

Study Shows Songbirds Switch From Bugs To Berries To Fuel Fall Migration

...ave been overlooked. "Many of these migrant birds behave very differently during migrationcompared to the summer breeding season in our forests and backyards where theiractions and needs are more familiar to us," said Parrish. "Their diet andhabitat use during migration are two examples of how they become ...

Bigger Biology Tackled Through Keyboards

...nt for the fact that neighboring individuals might behave differentlytoward each other than distant individuals -- whether these are trees competingfor light or individuals spreading disease. For example, the evolution of altruism has long intrigued biologists. Whywould an organism intent on spreading its ...

Penn State Wetlands Project Seeks Scientific Evaluation Criteria

...d looks like a natural site, but it really doesn't behave like one," he says. Although Brooks says the wetlands assessment project has given resource professionals the tools with which to identify or describe wetland types, the next step to completing the portrait of the state's wetlands is understandin...

Biosensor Is A Model For Widespread Testing Of Chemicals, Molecules

...ve to keep engineering the protein so that it will behave itself,but it is quite doable."...

How Dry Is The Tropical Free Troposphere? Implications For Global Warming Theory

...so predict that the Earth'slower atmosphere should behave in lock-step with the surface, but with temperatureincreases that are even more pronounced. However, global temperature measurements obtained fromsatellites of the Earth's lower atmosphere reveal no definitive warmingtrend over the past two decade...

Husband-And-Wife Team Embarks On Search For Genes Linked To Schizophrenia

...select genetic markers and look at how the markers behave in well families compared to a family where the illness shows up several times," Pato said. "We'll look to see if illness and genetic markers exist together, and we'll analyze genetic patterns from ill person to ill person. We'll develop a descript...

STS-89 Will Carry Five Science Payloads From NASA/Marshall

...productsin a process conveyor belt - will suddenly behave as if they were a flowingliquid, not like a solid mass at all." One of the "surprising findings" from the experiment on STS-79is that even under destabilizing conditions, granular materials are as muchas 80 percent more stable than once expected. "...

Memorial Sloan-Kettering Investigators

.... The drug duo induces leukemiacells to mature and behave like normal, healthy blood cells. This finding, thefirst evidence supporting a new approach called "transcription therapy," mayhave broad implications for improving the treatment of other types of cancerthat arise as a result of faulty gene transcrip...

Environmental Technology Breakthroughs Forecast -- Year 2008

...olecular design--An understanding of how materials behave at the molecularlevel will help in the development of advanced materials and more efficientsolar cells. Molecular design of catalysts could make chemical reactions andprocessing so precise that little or no wastes are produced. And sensorsdesigned ...

Reports Mesh To Clarify Proteins' Importance For Cancer

... is missing completely in NBS patients. "NBS cells behave as if they are unable to recognize DNA damage. If you considerthat, along with our observation that one function of the repair complex is tofind damaged DNA, the two stories begin to mesh into one; namely, MR95 may beimportant for warning the cell th...

Fragmentation Of Tropical Forests Can Create "Genetic Bottleneck," According To New University Of Georgia Study

...ay that tropical trees in a certain situation will behave this wayor that. Quite simply, our study area looked healthy, but it wasn't." Written by Phil Williams. Editors/Writers: James Hamrick will be out of the country until Monday,July 6. He may be reached at the above phone number at that...

Birds Of A Feather: The Physics Of Flocks

...rray of atoms to line up enough oftheir magnets to behave as a permanent magnet. Carrying the ferromagnetic analogy to flocks, this would mean that misjudgmentsbetween birds flying in a flat, two-dimensional formation would never be able toorganize into a unified flock. Yet in real life, we see flocks of b...

Veterinary Researchers Identify Accomplice Of Calf-Killing Parasite

...ng upon how the various lifecycles of the organism behave within the host. "Biologically, it doesn't make sense for a parasite to destroy itshost," said Lindsay, a parasitologist who specializes in studying the molecularinteractions between parasites and hosts. "A parasite doesn't want to causedisea...

New Company Formed Through Licensing Of Cardiac-Hypertrophy Technology From Texas Institutions

...rgement eventually weakens theheart, causing it to behave like spent elastic. "These are the first really good genetic models that target cardiac enzymesand appear to constitute the master switch in the process of cardiachypertrophy," said Dr. Stephen Grant, director of UNT Health Science Center's card...

Adult Cells Undergo Identity Switch Reported In Science

...earchers will have to confirm thathuman stem cells behave the same way the mouse stem cells do. And they will haveto accomplish the daunting task of isolating and growing adult human stem cells. More directly, the evidence from Vescovi and his colleagues' study indicatesthat neural stem cells, or "NSCs," we...

Duke Geologist Decries Using Engineering Models To Predict Natural Phenomena

...emendous amount of damage." Beaches can behave chaotically, which -- according to the emergingguidelines of chaos theory -- "have a huge dependence upon initial conditions,"added Pilkey, who said his "favorite initial condition" is a layer of shellsthat can cover some beaches. "If you hav...

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