Delta in Biological News

Fate in fly sensory organ precursor cells could explain human immune disorder

... signaling. This occurs because the ligand delta a protein that activates the Notch pathway ... bubbles) containing the Notch activating protein delta travel to the top of the daughter cell to a ... called microvilli. Under normal circumstances delta containing vesicles traffic to the microvilli. In ...

River delta areas can provide clue to environmental changes, Texas A&M prof says

... University of Texas have examined sediments from delta areas around the world, most notably the ... of China. The knowledge learned from these delta areas tell about the history of the region from ... and we can learn critical information from its delta regions. In the U.S., hypoxic areas where ...

River delta areas can provide clue to environmental changes, Texas A&M prof says

... University of Texas have examined sediments from delta areas around the world, most notably the ... of China. The knowledge learned from these delta areas tell about the history of the region from ... and we can learn critical information from its delta regions. In the U.S., hypoxic areas where ...

September Geology and GSA Today media highlights

... Ups and downs of the Mississippi delta Michael Blum et al., Dept. of Geology and ... et al.'s recent research suggests the Mississippi delta has a complex history of vertical motion that ... Erosion of the lower Mississippi valley and delta region during the last ice age removed a large ...

Dolphins get a lift from delta wing technology

... their finding that some dolphins' fins generate lift in the same way as delta wing aircraft on 26 June 2009 in The Journal of Experimental Biology at ... the flippers and found that sweptback flippers generate lift like modern delta wing aircraft. Calculating the flippers' efficiencies, the team found that ...

New drug agent knocks out multiple enzymes in cancer pathway

... fighting cancer: They spur the proliferation of immune cells called gamma delta T-cells, which aid in killing tumor cells. "The new drugs are about 200 ... in recent clinical trials at killing tumor cells and in activating gamma delta T-cells to kill tumor cells," Oldfield said. "They also prevent tumor ...

USGS news: August science picks

... CO2 Imagine a new kind of farming in the Sacramento-San Joaquin River delta carbon-capture farming, which traps atmospheric carbon dioxide and ... Davis, to make it happen. Long-standing farming practices in the delta expose fragile peat soils to wind, rain and cultivation; emit carbon ...

How does the opioid system control pain, reward and addictive behavior?

... exert their pharmacological actions through three opioid receptors, mu, delta and kappa whose genes have been cloned (Oprm, Oprd1 and Oprk1, ... al. have knocked enhanced green fluorescent protein (EGFP) into the opioid delta receptor gene and produced mice expressing a functional DOR-EGFP ...

New paper examines dams' effects on California salmon

... conservation improvements such as increased seasonal river flows to aid delta Smelt, salmon and other species of fish that live in the delta area or swim upriver to spawn. After first establishing the ...

August 2009 Geology and GSA Today media highlights

... inputs to seawater. The findings will also aid future interpretations of ancient ocean iron cycling processes in the rock record. Predicting delta avulsions: Implications for coastal wetland restoration D.A. Edmonds et al., The Pennsylvania State University, Dept. of Geosciences, University ...

Smaller than expected, but severe, dead zone in Gulf of Mexico

... patterns that re-oxygenated the waters, among other factors. "The winds and waves were high in the area to the west of the Atchafalaya River delta and likely mixed oxygen into these shallower waters prior to the cruise, thus reducing the area of the zone in that region," said Rabalais. "The ...

Protein linked to change in tissue that surround and support breast tumors

... in tumor development. "AIB1 and its more active variant potentiate both estrogen and HER2/Neu at different stages of breast cancer. We knew that AIB1 delta 3 was more active than AIB1 but this study is evidence that we have of a major functional difference between the two proteins," says the study's ...

Beyond 'ooh-ooh, aah-aah'-- expert on monkey communication kicks off Darwin series, May 5

... and collaborator, who is on Penn's biology faculty, studied communication, social behavior and cognition in chacma baboons in Botswana's Okavango delta from 1992 to 2008. These baboons are among the largest of the world's five species and live in large groups of 100 where social rank is determined by ...

Stanford scientists find new solutions for the arsenic-poisoning crisis in Asia

... systems: the Mekong, Ganges-Brahmaputra, Irrawaddy and Red. Epidemiologists first identified arsenic poisoning in the 1980s in the Ganges-Brahmaputra delta in Bangladesh. The sudden occurrence of the disease was linked to the increased use of wells for drinking water. Scientists had long assumed that ...

BioScience tip sheet, January 2009

... Moyle, Glenn S. Merron, David R. Purkey, and Belda Mosepele. The Okavango Delta, Botswana, is a major wetland surrounded by the Kalahari Desert. The delta supports a diverse fish fauna that depends not only on seasonal flooding from inflowing rivers, but also on the actions of ecosystem engineers. ...

Earth scientists keep an eye on Texas

... Monday, 6 October 2008: 5:00 PM, Room 320ABC 227-T7 Session: The Mississippi River delta as a Natural Laboratory for Evaluating Coastal Response to Relative Sea-Level Rise and Innovations in Transgressive Coastal Management ...

Entomological Society of America names 2008 award winners

... New Specialist Award (1987), the Nebraska Cooperative Extension Team Awards for Backyard Farmer and Urban Pest Management (1995), the Gamma Sigma delta Extension Award of Merit (1995), the ESA Recognition Award in Urban Entomology (1998), and the Excellence in Extension Award presented by the ...

Wetlands restoration not a panacea for Louisiana coast

... the models are flying blind, Young said. Add to this the fact that land loss is happening at such a rate in the Gulf, due to subsidence of the delta and exacerbated by rising sea levels, that Young fears that the billion-dollar restoration programs planned for the region will do little to maintain ...

August 2008 Geology and GSA Today media highlights

... directed to GSA Sales and Service, gsaservice@geosociety.org . Predynastic human presence discovered by core drilling at the northern Nile delta coast, Egypt Jean-Daniel Stanley et al., Smithsonian Institution, Rm. E-205 NMNH, Paleobiology, 10th St. and Constitution Ave. NW, Washington, DC ...

Researchers confirm dead zone off Texas coast since 1985

... about every year for at least the last 23 years. Previous dead zones have been recorded off the Louisiana coast for years, near the Mississippi delta region, and a dead zone there has been measured at more than 7,900 square miles, or about the size of Delaware and Connecticut combined. DiMarco ...

Insecticide combo delivers knockout punch

... the Bt toxin have managed to check the insects to some extent but Luthe says insects may be winning the fight. "Researchers in the Mississippi delta have found resistance to Bt among some insect populations in the region," Luthe noted. "There is a chance that some time in the future Bt will not be ...

New radar satellite technique sheds light on ocean current dynamics

... segment upgrade is also allowing the scientists to examine the anticipated Doppler shift signal of the river outflow at the mouth of the Amazon delta to monitor river runoff and improve our understanding of hydrological processes. Chapron and Collard also presented their Near Real Time global ...

LSU and Ohio State battle on football field, collaborate in research field

... so that nutrient loads in the Mississippi that would increase the size of the dead zone will be dramatically reduced by the time they reach the delta region. John Day, professor emeritus at LSU, and Bill Mitsch at the Ohio State University, have really come a long way with this partnership, said ...

Highlights from the November 2007 Journal of the American Dietetic Association

... on the Undernourished Child: India Poverty and Food Intake in Rural America: Diet Quality Is Lower in Food Insecure Adults in the Mississippi delta Neighborhood Deprivation Is Associated with Lower Levels of Serum Carotenoids among U.S. Adults Participating in NHANES III Food Security ...

Soil, conservation experts to reflect on Hurricane Katrina disaster

... protecting the area, and the sociopolitical and scientific processes of land and resource management. Rapid degradation of the Mississippi River delta and climate change are placing the physical and socioeconomic sustainability of coastal Louisiana in doubt, says speaker William Jenkins of Louisiana ...

Species still have more viable offspring if they can choose their best mate

... Distinguished Professor of Genetics, and Yong-Kyu Kim, an assistant research scientist in Andersons lab, both at UGA; Cynthia K. Bluhm of the delta Waterfowl and Wetlands Research Station in Canada; Lee C. Drickamer of Northern Arizona University; and Allen J. Moore of Centre for Ecology and ...

Stem cells engage in dialogue with the cells that regulate their futures

... When this trigger is pulled by proteins, called delta and Serrate, from another cell, proteins are ... They found that either an increased production of delta protein in the stem cells, or the presence of ... hand, when stem cells don't produce functional delta protein, they cease to be stem cells and soon ...

Insulin receptor stops progression of Alzheimer's disease

... different regions of the brain, with PPAR delta producing the most striking effect in preserving ... in reducing amyloid gene expression. PPAR delta had the most benefit for reducing oxidative ... and that was the most improved with the PPAR delta agonist." Researchers were not able to stop ...

Young Blood Revives Aging Muscles, Stanford Researchers Find

... younger muscles begin producing a protein dubbed delta in response to muscle damage. Older muscles maintained the same pre-injury levels of delta even after muscle damage. However, in the current ... elderly mice joined to younger partners ramped up delta production to youthful levels after an injury. ...

'Exercise pill' switches on gene that tells cells to burn fat

... the master regulator of fat metabolism. By permanently turning on this delta switch in mice through genetic engineering, he was able to create a mouse ... but they do not show increased endurance. Dr. Evans says this suggests the delta switch can operate in different modes, and the laboratory is in the ...

Shutting down the HIV assembly line

... several known and novel interacting proteins and selected one, the delta subunit of AP-3, for further evaluation. AP-3 is an "adaptor protein ... Through a series of experiments, the group demonstrated that the AP-3 delta subunit interacts with Gag to direct it to the multivesicular body. ...

Scientists find hormone activity explains adolescent mood swings

... calm activity in the brain. As such, they are the targets for most sedative, tranquilizing drugs. One sub-type, GABA-A receptors containing the delta subunit, such as alpha4-beta2-delta, has the highest sensitivity to steroids. In order to study its role in puberty, the researchers used a mouse ...

Protein therapy may reduce infarct size in heart attack patients

... may reduce injury in damaged heart muscle cells, but this class of therapies had not previously been studied in heart attack patients. In the delta MI trial, the DCRI team evaluated KAI-9803 in 154 patients with anterior ST-elevation MI undergoing primary percutaneous coronary intervention with ...

Slow brain waves play key role in coordinating complex activity

... brain fire. Typically measured with electrodes on the scalp (electroencelphalograms, or EEGs), brain waves are classified from the very slowest delta waves (1-3 oscillations per second) seen in very deep sleep, through theta (4-7 oscillations per second), alpha (8-13 oscillations per second) and ...

Brain regions do not communicate efficiently in adults with autism

... in the left hemisphere, particularly in the temporal lobe of the persons with autism within two different frequencies of brain waves, the delta and theta bands. This part of the brain is associated with language, which is impaired in many people with autism. A global pattern of ...

New law for resolution allows unprecedented sharpness in fluorescence microscopy

... to the fact that light cannot be focused to a smaller spot due to diffraction. It seemed impossible to image details smaller than a distance where delta d is equal to 200nm using conventional lenses and visible light. For a long time, Abbe's law was regarded as being insurmountable. For higher ...

Lance Armstrong through a physiological lens: hard training boosts muscle power 8%

... in (muscle) efficiency when cycling, as well as the stimuli that provided this adaptation, are unclear. The observation that both gross and delta efficiency improved to the same extent and also with the same time course suggests an improved efficiency of ATP turnover within muscle fibers during ...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

... in the San Luis Drain, a concrete-lined canal originally intended to channel irrigation wastewater from Central Valley farms to the Sacramento River delta near Antioch. Selenium is considered an essential trace mineral for both humans and animals, but it becomes toxic at high doses. The dangers of ...

Gene therapy converts dead bone graft to new, living tissue

... Academy of Orthopedic Surgeons (AAOS). Next week the ORS will honor Schwarz with one of the most prestigious awards in orthopedics, the 2005 Kappa delta Young Investigator Award. The honor carries with it a grant for $20,000 to help expand his research. Schwarz is also founder and president of the ...