Arctic spring comes weeks earlier than a decade ago
...ehensive studies have reported advancements of 2.5 days per decade for European plants and 5.1 days per decade across animals and plants globally.s Using the most comprehensive data set available fo...How 'memory' T cells curb the spread of viruses throughout the body
...cyte multiplication and migration may take several days while viruses multiply and spread quicker. Sigals work shows the CD8 T cells can protect from viral disease without the need to migrate from the lymph nodes to the site of viral entry. It was very difficult to imagine how the memory T cells could ...Changes in chromosomal constitution of preimplantation embryos suggest caution in genetic screening
...in IVF are normally transferred at between 3 and 5 days old, says Ms Frumkin. We found that embryos which were abnormal on day 3 demonstrated a high rate of mosaicism However, on day 5 some of them had undergone self-correction into normal embryos. Others kept the same abnormalities, while some had acq...University of Colorado invention may allow thirsty crops to signal farmers
... could conceivably decrease the number of watering days for certain crops by up to a day or two each week." Economists estimate that agricultural activity accounts for about 40 percent of the total freshwater use in the United States. About 60 percent of all crops in the United States are irrigated us...Staphylococcus aureus hides out in cells
...though most of the bacteria had died by about four days as a result of antibiotic treatment, the team still found viable bacteria in their model system two weeks after infection. The findings may help in understanding persistent infections, and in designing new antibacterial drugs. S. aureus has not tr...Study investigates 'divorce' among Galapagos seabirds
...gg for 43 days. Then, it takes another 100 to 120 days of parental care until the baby bird can fly. The parents will usually continue to provide some meals to the fledgling. So, if, when mating season rolls around again, a male looks a little ragged from taking care of junior, his mate is likely to ...High cholesterol diets modify gene expression in atherosclerosis
... arteries before the formation of the plaques. Ten days after the start of the high cholesterol diet when atheromatous plaques are not still visible using an electron microscopic aortic SMCs are extracted and in-vitro cultured. Experts cultured SMC-Cs (obtained from animals without a cholesterol dietary...Breakthrough developments in rheumatoid arthritis reported
... shared bands of genetic material would take two days today. And that speed is what excites Dr. Gregersen. We have the tools to get at these genes rather quickly now, he said. The more patients and controls that we have, the more power we will have to pull out new genes and make associations. In an...Hormone that signals fullness also curbs fast food consumption and tendency to binge eat
... reported for brief visits to the research unit on days 17 and 31. They returned for a final three days as inpatients, ending the experiment at day 44. Participants maintained their typical exercise hab...It's safe for obese moms-to-be to lose weight during pregnancy, new SLU research finds
...aged to maintain an exercise routine the other six days of the week. Half of the women in the group that exercised said they worked out for at least 30 minutes a day, five times a week, which is the recommended exercise guideline for the non-pregnant population. Significantly more women who exercised an...News tips from the Journal of Neuroscience
...andall S. Johnson, and Juan C. Chavez For several days after a stroke, damage continues to evolve in the penumbra surrounding the ischemic core. The extent of the damage depends on many factors, including the balance of expression of destructive and protective molecules. This week, Baranova et al. examin...Enzyme delivered in smaller package protects cells from radiation damage
...wth medium and incubated at body temperature for 7 days at which time colonies of greater than 50 cells were counted. The MnSOD transfected cells were significantly more resistant to ionizing radiation than the non-tranfected cells. However, there was no significant difference in survival between MnSOD...Research identifies protein that signals flowering in squash plants
...der to flower. These are plants that flower as the days grow shorter, such as in the fall in temperate reg...(LD) plants will flower when nights are short (and days are long), and typically flower in late spring or early summer. SD crops include rice and maize, and...Eavesdropping comes naturally to young song sparrows
...or a two-part experiment. When they were about 15 days old, the birds were exposed to four adult sparrows... begun to sing, were exposed to the tutor for four days and then rotated to the other room where they heard the songs of the other two tutors for four days....News tips from the Journal of Neuroscience
...press NGF in the dorsal spinal cord of rats. Three days later, they used more ventral injections to express the repellant guidance molecule semaphoring 3A (Sema3A). NGF-guided axons made it over the barrier of the dorsal root entry zone, but they grew throughout the six dorsal laminae. However, the combin...Common treatment for methamphetamine overdose may damage brain cells
...etamine-treated rats as in saline-treated ones two days after injections. Yamamoto and his colleagues were able to link this rise in glutamate to the death of GABA-containing cells in one part of the substantia nigra. This may predispose some people who have been treated for a methamphetamine overdose to ...ACS News Service Weekly PressPac -- May 23, 2007
...hanges in the remaining CL, occurred as early as 5 days after rats became diabetic through administration of a compound that impairs insulin-producing cells in the pancreas. Researchers observed the changes in two models of diabetes commonly used to study the two types of human diabetes. The changes hap...Avian influenza survivors' antibodies effective at neutralising H5N1 strain
...to their local healthcare facilities until several days after the onset of illness." The antibodies were discovered in the laboratory of Professor Antonio Lanzavecchia at the Institute for Research in Biomedicine in Switzerland. The researchers used a new technique that allows them to rapidly reproduce ...A first -- Hebrew University scientist observes brain cell development in 'real time'
...ea was assessed by time-lapse imaging over several days at different stages of development. Mizrahi revealed that dendritic formation is highly dynamic. Moreover, once incorporated into the network, adult-born neurons in the study also remained dynamic and capable of continuous change. This method prov...Canadian paper innovation holds promise for improved global health safety
...hogens," explains Pelton. "Right now, it can take days or weeks to get samples to a lab, diagnose the problem and get the remedy into the field." The prevalence of food-, air- and water-borne illness is well documented. For example, there is an estimated: 76-million food-borne illnesses annually in...