Steroid discoveries could add bulk to crop harvests
...traviolet light. Experiments done in the Chory lab demonstrated that this synthetic steroid interacted directly with BRI1 and allowed her team to define a small region of BRI1 that is outside of the cell as the part of the molecule responsible for steroid binding. "These experiments enabled us to show definitivel......researchers at Duke University Medical Center have demonstrated for the first time that monkeys, like humans, value information according to its social content. People readily pay to see powerful or sexually attractive individuals, and, according to this new study, monkeys will also "pay" to view these kinds of i...VCU research shows erectile dysfunction drug reduces death of heart cells in heart attack model
...ike conditions are simulated in a Petri dish, they demonstrated that NO produced from sildenafil inhibits cell death by stabilizing mitochondria, increasing the level of the anti-death protein, Bcl-2, and inhibiting caspase 3, the protein considered to be the ultimate weapon in cell suicide. "This research has es......ation is chaotic mixing and noise. The researchers demonstrated how a non-linear system can be controlled to become synchronized even when its stimulus is below the threshold by the addition of noise to the system. The results based on their model study imply that oscillatory behaviour in many natural systems, ra...Experimental radar provides 3-D forest view
...rent polarisations; just as visible light does as demonstrated by the high amount of glare screened out with polarized sunglasses. Envisat's Advanced Synthetic Aperture Radar (ASAR) is a dual-polarisation instrument, meaning that it can transmit and receive in either Horizontal (H) or Vertical (V) polarisations...Increased risk of osteoporosis associated with gene that one in five people have
...hington University School of Medicine in St. Louis demonstrated that in women the variant gene speeds up the breakdown of estrogen and is associated with low density in the bones of the hip. The study will be reported in the February issue of the Journal of Bone and Mineral Research and is available online. The ...PET/MRI scans may help unravel mechanisms of prenatal drug damage
RESTON, Va.--Scientists have demonstrated a new way to assess the potentially damaging effects of prenatal drug exposure--a technique that could also be used to monitor a fetus's response to therapeutic drugs--using sophisticated, noninvasive medical imaging tools. Scientists at the U.S. Dep...Scientists discuss improved biopesticides for locust control in West Africa
... ultraviolet radiation." Research at Virginia Tech demonstrated UV resistance 15 times greater for coated spores as compared to non-coated spores. "This technology is applicable to many other biopesticides and should make them more effective as well,." Agblevor said Local officials are calling the infestation in ...Fourth Stowers researcher awarded Basil O'Connor Award
...esearch to the intestinal stem cell population and demonstrated that a mutation in a single gene (Bmpr) causes expansion of the intestinal stem cell population and leads to intestinal polyposis. The award will allow Dr. Li to investigate the downstream pathways of BMP signaling in regulation of intestinal stem c...In the migratory marathon, parasitized monarchs drop out early
...me heavily parasitized. More generally, this study demonstrated that seemingly small effects of parasites on their hosts could have a much larger impact when combined with the stresses of long-distance migration....New system can measure productivity of oceans
...ever, in studies already done, the scientists have demonstrated that carbon-based values are considerably higher in tropical oceans, show greater seasonality at middle and high latitudes, and illustrate important differences in the formation and demise of regional algal blooms. Researchers anticipate a fundamenta...Progress toward a new remedy for chronic urinary tract infections?
... crystallography and affinity determinations, they demonstrated that the bacteria bind very strongly to the structure of the Heptyl--D-mannoside sugar. This binding is strong enough to prevent the bacteria from attaching themselves to the urinary tract wall. Therefore, administration of Heptyl--D-mannoside could ...Promising anti-TB compound finally can be synthesized with ease
...ine compounds called diterpenes was discovered and demonstrated to have anti-TB activity in 2000, but as with most natural products, so little could be extracted from the marine organism that full biological evaluation was not possible. To circumvent the problem, chemists have concentrated their efforts o...Lychnis moth (Hadena bicruris) lays more eggs in isolated areas
...ies, which kill the caterpillars. However, Elzinga demonstrated that this hypothesis is not correct. Upon hatching, Lychnis caterpillars eat the seeds of the white campion on a massive scale. Half of these caterpillars die prematurely due to attacks by ichneumon flies. The increasing fragmentation of the country...New drug may be formidable adversary for hard to treat leukemia
...inical trials validate the effectiveness of AMN107 demonstrated in the preclinical studies reported here, it may be possible to either use AMN107 in selected patients with imatinib resistance, or to use both agents together, simultaneously or sequentially," says Dr. Griffin. The researchers are hopeful that comb...... Munich and Max Planck Institute of Quantum Optics demonstrated the first source of laser-like X-rays at a wavelength of 1 nanometer with a compact laboratory apparatus [Nature 433, 596 (2005)] in an experiment in Vienna, funded by the Austrian Science Fund. The colour of light is determined by the length of one ...Critical role in programmed cell death identified
...als with a cell death defect die. The researchers demonstrated that when they cause worm mitochondria to fragment without instructing cells to die, the cells still die and when they block fragmentation, the cells survive; in other words, blocking fragmentation prevents cell death, inducing fragmentation provokes...Could schizophrenia arise from a single defect?
...en Center for Molecular Life Sciences (NCMLS) have demonstrated that such seemingly diverse combinations of symptoms can arise from a subtle imbalance in the activity of a single gene whose protein plays a key role in neural development. The researchers studied the genetic differences between rats bred to be eith...Mechanical tension helps shape lung development
...r researcher in the Vascular Biology Program, have demonstrated that the process of budding and branching in the developing lung is driven by mechanical forces generated within individual cells. They have also identified a possible biochemical target for intervention. These insights could lead to new ways to prev...Scientists discover how climate change causes the simultaneous boom or bust of multiple populations
...on," Hudson explains.Hudson's earlier research had demonstrated that infection by the gastrointestinal nematode, Trichostrongylus tenuis, reduces the reproductive success of the Red Grouse by causing the hen to lay fewer eggs and by reducing the likelihood that those eggs will hatch. His earlier research also ha...