Widespread amphibian deformities caused by parasite
...k. The existence and number of those parasites is dependent upon the presence of a group of snails that play an essential role in the life cycle of the parasite, the study said. And burgeoning populations of those snails, in turn, may be due to alterations of habitat, loss of natural wetlands, and high nutrie...Amphibians and crippling parasites
...hat the final stage of the parasites life cycle is dependent upon predation; in order to complete its final developmental stage, the parasite depends upon a bird or mammal to eat an infected amphibian or fish. The parasite then sexually matures and releases eggs via bird or mammal feces. When the eggs hatch ...Nature's own antidote to cocaine
...n gene have a significantly lower risk of becoming dependent upon or abusing cocaine than people with the low-output version. The p-value - a measure of statistical significance - for this study was .042 (values of .05 and lower are considered to be significant). "We were very lucky to have well-characterized...Built-in 'failsafe' device blocks abnormal growth of new blood vessels
...iogenesis-inhibiting activity of TSP1 and PEDF was dependent on the dual induction of Fas and FasL as well as on the resulting apoptosis. It has been known for some time that Fas/FasL interactions target immune cells for destruction in immune-privileged and diseased tissues when large populations of cells ...Fisheries forecasting in the Niger inner delta
... into flooded areas. Fishing activity is therefore dependent on the hydrological seasons. Two measurable hydrological parameters can express these: rainfall and river discharge. IRD scientists have sought to determine the extent to which these two variables can provide the basis for a model for predicting annu...Movement without senses coded into neurons, says University of Toronto researcher
...rawling and walking of insects - is intrinsic, not dependent on sensory stimulation, says a University of Toron...rgely intrinsic to central nervous systems and not dependent on sensory cues like touch or smell." Suster and University of Cambridge professor Michael Bate exam...International consortium to create sequence-ready map of the cattle genome
... be critical to states whose economies are heavily dependent on animal agriculture, he said....Physics tip sheet #3 March 6, 2002
...and dunes are known to move downwind at a velocity dependent on height. So why dont dunes of different heights bump into each other? A new model of sand dune dynamics accounts for the interaction between dunes in terms of inter-dune sand flow. The model examines the case of barchan (crescent-shaped) dunes and ...Lizards and salamanders may use lungs to hear, study says
...y frequency. To determine how dependent the animals were on their lungs for hearing, Hetherington filled the lungs of three red-spotted newts and three green anoles (an anole is a tropical lizard that can change color) with oxygen...A gateway for Ebola/Marburg viruses
...high as 80%. Effective therapies and vaccines are dependent upon a more complete understanding of the virus li...se, demonstrate that Ebola and Marburg viruses are dependent upon cell membrane lipid rafts for entry into the cell and ultimately for virus assembly and budding...Dartmouth researchers expose weakness of common parasite
...tivating "this enzyme made the parasite completely dependent on the added pyrimidine nucleobase uracil for its growth in the laboratory. These results suggest that pyrimidines are limited in the host cell, explaining why these parasites have retained the ability to synthesize these essential (genetic) precurso...Agri-tech innovations promise better food security
...to environmental degradation. "Cambodia is heavily dependent on agriculture," Koma said. "We need to find a good solution for small farmers which make up around 85 percent of the total population. The Rice Intensification Program can be a good solution for the highly populated areas in Cambodia and Asia, in wh...New solutions needed for extinction prevention and for sustainable management of marine resources
...th tremendous resistance among people economically dependent on fishing.Co-management of marine resources by governments, private fisheries and communities only recently has been recognized as an effective way for sustainable management programs to gain acceptance. The focus must be on understanding the connec...An animal study raises additional concerns about the use of dexamethasone on premature infants
...on is vital for learning memory acquisition and is dependent on optimal exposure to elevated glucocorticoid levels, the results of this present study should raise concern with regards to the neurodevelopmental repercussions a prolonged steroid course may have on the premature human infant. Therefore, this news...Satellites vs. mosquitoes: Tracking West Nile Virus in the U.S.
...here temperatures are higher, the insects are more dependent on the availability of moisture for survival. Lush vegetation provides a good indicator of areas with increased levels of moisture. Mosquitoes tend to thrive in warmer, wetter areas. Satellites let researchers see which areas have these conditions, ...New nutrition guidelines for diabetics promote emphasis on high-monounsaturated fat diet
...oved the heart health of patients with non-insulin dependent (type 2) diabetes, when compared to a diet high in carbohydrates. Gargs research led to a major revision in the ADAs dietary guidelines that same year. Research done in the Center for Human Nutrition at UT Southwestern has played a major role in guid...New theory of the evolution of bird flight linked to parental care
... mouths. They also began to produce fewer and more dependent offspring and smaller eggs, and began nesting in bushes and then small trees to better protect their offspring from predators. Gradually the forelimbs of these creatures became feathered and even more elongated, enabling them to better manipulate the...Counterintuitively, after extreme droughts, wading birds flourish
...ther wetland plants and animals that are similarly dependent on some aspect of drought-flood cycles. Flattening out these cycles would be a mistake, Frederick said....... and more advanced tumors, cancer cells can become dependent on survivin for their continued proliferation, apparently because this protein abolishes a normal cell-cycle checkpoint and prevents them from being driven toward apoptosis. Zaffaroni et al. now show that hammerhead ribozymes directed at the survivin...