Tag: "permanent" at biology news

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

... perceivedby cocaine or amphetamine addicts or the permanent and severe delusionsexperienced by schizophrenics. On the other hand, the lack of dopamine inthe brain's motor areas produces the symptoms of Parkinson's disease. "Virtually every addicting substance appears to modify the dopaminesystem, implying it...

Researchers Identify A New Cellular Structure: The "Dumposome"

...Tetrahymena has two nuclei. One of these acts as a permanent geneticlibrary; its DNA is left intact and is passed along to offspring. The second nucleus carries the DNA used by theorganism during its own lifetime. The dumposomes break down 15 to 20 percent of this DNA during reproduction. The idea of sele...

Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms

...loating Ross Ice Shelf, and hence to the sea. How permanent is this ice sheet, which is actually anchored below sea level? As part of a major, multi-year initiative, the West Antarctic Ice Sheet program, scientists led by Kendrick Taylor of the Desert Research Institute will begin drilling a 1000-meter core ...

Pinpoint Gene Control Holds Promise For Nervous System Studies

...to produce NGF.The team believes this is the first permanent geneticmodification in the central nervous system of an adult mammal. The work gives scientists the ability to study genes in a waythey've never been able to before. Many genetic studies are basedon mice where a particular gene has been knocked ...

New Nonviral Gene Therapy System Could Help Fight Cancer

...nth. "For treatment of genetic birth defects, permanent genetherapy might be the method of choice," Wagner said. "But torepair or destroy diseased cells, it's not necessary to change thebody's genetic makeup permanently. The T7 system is a means todeliver a gene product or drug into a patient without that...

Epic Of Evolution Conference Brings Science And Religion Together November 12-14

...most important projects is "LivingTogether," a new permanent exhibit opening Nov. 8 with educational programsscheduled throughout the year. The on-site registration for the three-day conference is $80 per individual; $40for students and K-12 teachers. For more information, contact Bob Bobala atAAAS: (202) 326...

Extra Choline During Pregnancy Enhances Memory In Offspring

...that a common food nutrienthas been shown to cause permanent brain changes in regions responsible forlearning and memory. The findings could have important implications --especially for pregnant women and their children -- if choline proves to havethe same memory-enhancing effect in humans, a theory for which...

High-Pressure Chambers Could Prevent Paralysis After Spinal Cord Injury

...ssion sickness could play a key role in preventing permanent spinalcord damage and paralysis to many of the thousands of Americans who sufferspinal cord injuries every year, a doctor from Scotland reported today. Dr. Philip James of the University of Dundee reported at a conferencehere that putting pat...

Carnegie Mellon Researchers Develop Nation's First Robotic Tour Guide For The Dinosaur Hall At Pittsburgh's Carnegie Museum Of Natural History

...oor of aU.S. museum to interact with visitors as a permanent part of an exhibit. The new tour experience is the result of the work of people at themuseum, the university and RedZone Robotics, Inc. The robot is based onnavigation technology developed at Carnegie Mellon. The museum and RedZone haveworke...

Scientists Use Gene Therapy To Correct Deafness In Mice

...c technology. The U-M study represents the first permanent correction of a deafness-relatedgenetic mutation and the fifth time that identification of a deafness gene inmice helped scientists find a similar gene in humans---according to Sally A.Camper, associate professor of human genetics in the U-M Medical ...

Duke Researchers Call Gene Therapy A Promising Strategy For Sickle Cell Anemia

...ssibly this unique source of blood stem cells as a permanent treatment forsickle cell disease. "If we c...ibozyme into the blood stem cells, that would be a permanent sourceof good, working copies of the globin gene that could at a minimum lessen thesymptoms of the d...

Montana And Other Scientists Report On Life In The Ice

... their way down to liquid water, which lay under a permanent ice layerabout 15 feet deep, they invariably struck a layer of sediment. "At first I cursed the sediment layer because it dulled the drill bits,"recalled Priscu, a biologist at Montana State University-Bozeman who has doneresearch in Antarcti...

Groundwater Injection Process Filters Out Contaminants

...inch groundwater well and does not requirebuilding permanent structures. It also is conducted below the surface,therefore decreasing risk of exposure to workers. Additional benefits includeits one-time installation -- an improvement over methods such as pump and treatthat are conducted over long periods of t...

USGS Measures Coral Reef Recovery In Culebra, Puerto Rico

... observations made by USGS scientists whorevisited permanent monitoring sites established on the reefs in 1991. The teamphotographed coral reefs at three sites to gain an understanding of how thecorals have recuperated since Hurricane Hugo. Coral reefs are sources of carbonate sand production, buffers to stor...

United States And Ukrainian Governments Establish Permanent Chernobyl Laboratory

...thegovernment of Ukraine was signed establishing a permanent internationalradioecology laboratory in the city o...the continued success of the work now underway. "A permanent labhas been a dream of mine since 1993 when the idea was first raised," he said."Our work there has ...

Severity Of Classic Heat Stroke Recognized

...from the hospital. Many of the survivors suffered permanent loss of independent function; one-thirdhad severe functional impairment at discharge and none of them had improvedafter one year. The findings are reported in the August 1 issue of the Annals of InternalMedicine. "Unlike previous descriptions of cl...

Duke Studies Show U.S. Central Plains Vulnerable To Global Warming

...er regions. The colder regions featuremore or less permanent permafrost, while the warmer ones show considerablescarring. Camill discovered that the local dynamics of peat collapse andreformation dominate over the north-to-south temperature gradient, said Clark. "This finding means that, even t...

ESA Corporate Award Goes To Precious Woods Ltd.

...ximately 25,000 ha (30 percent) of their forest in permanent reserveto provide refugia for wildlife, sources fo...Atany one time, 91 percent of the rainforest is in permanent or temporary reserve. Species distributions of 40 tree species are mapped with a GeographicalInforma...

New Research On Environmental Pollutants

... period when the brain is rapidly developing, show permanent disturbancesin behaviour, memory and learning. These findings are particularly interestingconsidering the increase of PBDE in human breast milk. Earlier, similar effectshave been shown after exposure to various PCBs. Developmental Neurotoxicity Of B...

Persistent Organic Pollutants, The Danger Is Not Over

...xposed to a few micrograms of DDT will suffer permanent damage to the central nervous system. There are no external changes, but for the rest of their life they will endure reduced learning capacity and hyperactive behaviour, showing irreparable brain damage. Other toxic pollutants, such as...

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