Tag: "slightly" at biology news

Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible

...rimentalcorrelation between separate labs was only slightly lower thancorrelation of duplicated experiments within the same labs. “Thisstudy is a key first step in moving gene expression data fromsmall-scale bench science into large-scale clinical evaluation,?saidJames Jacobson, Ph.D., chief of NCI’s Diagnos...

Falling ants glide back to trunk to avoid dangers of forest floor

...ion so quickly is still a mystery. They have long, slightly flattened hind legs which, when combined with abdominal movements, might allow the ants to reorient in midair. They also have an unusual flattened head with flanges that could act as a rudder, Dudley said. "My guess is that, by gliding backwards and...

How the environment could be damaging men's reproductive health

...chemical, but the prevalence of cryptorchidism was slightly higher. It rose from 5.1% in non-smoking mothers to 7.8% in smoking mothers, and from 4.9% to 7.13% for mothers working in a potentially harmful environment. "Although this increased risk was not statistically significant, it suggests that environme...

Harmful chemicals may reprogram gene response to estrogen

...tumors rises to almost 100 percent. By comparison, slightly more than half of the unexposed animals, those having only the genetic defect, developed the uterine tumors. DES is a drug that was prescribed for women from 1938 to 1971 to prevent miscarriages and premature deliveries. Daughters of women who used ...

Revolutionary nanotechnology illuminates brain cells at work

...th two fluorescent dyes that have overlapping, but slightly different colors–in this case cyan and yellow versions of GFP. The cyan is excited and, if the distance between the colored proteins changes, more or less energy is transferred to the yellow protein. In this study, the cyan and yellow proteins behave...

Super predators and mass extinctions

...efficiency" predators whose numbers fluctuate only slightly as the prey population waxes and wanes. Inevitably, their stable community is disrupted when mutations lead to a super predator that quickly decimates the prey population, which in turn leads to its own demise. The few creatures that survive the pred...

Brain Scans Reveal How Gene May Boost Schizophrenia Risk

Clues about how a suspect version of a gene may slightly increase risk for schizophrenia* are emerging from...o copies of the more common val version leads to a slightly higher risk for schizophrenia and a signature pattern of midbrain dopamine activity.** To see how t...

Shift of weather patterns necessitates rethinking of reforestation methods

...rvival rate. The containerized seedlings were only slightly larger than the bare root plantings after two years. "And we did everything right planting the bare root seedlings," Taylor said. "Doing everything right" meant meticulous attention to care of the bare root seedlings, soil moisture at planting time...

Scientists journey to southern Africa to unravel the secret world of elephant communication

...acinian corpuscles that respond to vibrations with slightly higher frequencies. Little is known about how these nerve endings are distributed in the elephant's skin. To solve part of the puzzle, veterinarian Donna Bouley, an associate professor of comparative medicine at Stanford, and undergraduate Christina...

Study reveals dramatic difference between breast cancers in US and Africa

... cells. -- Third, cancers from African women were slightly less likely to express the cell-surface marker HER...en are likely to fall somewhere in between, with a slightly lower lifetime incidence of breast cancer than Caucasians but earlier onset and worse prognosis. Afr...

Road salt affects mitigation wetlands

...he designated runoff wetland and one other that is slightly affected by splashover from salt spreading and sno...et known. There was no decrease in midges from the slightly salty wetland. In general, freshwater organisms are not very salt tolerant. The Penn State researche...

Bevacizumab Combined With Chemotherapy Improves Progression-Free Survival for Patients With Advanced Breast Cancer

... the combination of paclitaxel and bevacizumab had slightly more neuropathy, or problem in peripheral nerve function (any part of the nervous system except the brain and spinal cord); abnormally high blood pressure; and proteinuria, a condition in which urine contains an abnormal amount of protein, than patie...

Man-made wetland's effectiveness similar to natural marsh

...wnward toward the river ?the second basin was at a slightly lower elevation than the first, the third basin was slightly lower than the second, and so on. Surface water would come into the first basin and slowly seep towa...

Chimp genome reveals a retroviral invasion

...ater than between gorilla and chimp -- even though slightly more evolutionary time separates gorilla and chimp than macaque and baboon. When a retrovirus reproduces, identical copies of LTR sequences are created on either side of the retroviral element; the divergence of LTR sequences within a species can be...

Research shows smoking adds a decade to reproductive age of IVF patients

...with over 18% for normal weight and nearly 21% for slightly overweight women. Professor Didi Braat, one of the co-authors, said: "What our research clearly shows is that both smoking and being overweight unfavourably affect the live birth rate after IVF. Smoking has a devastating impact. It is comparable to ...

A probe, not an echo

...multi-band images. Different kinds of tissue allow slightly more, or slightly less of the pulse through -- the loss is called "attenuation," and varies according to the type of t...

Major new UNC-based drinking water study suggests pregnancy fears may be overstated

...e opposite -- that higher-exposure populations had slightly lower risks. There was some indication, however, that reduced fetal growth might be associated with higher exposure levels." Particularly helpful to the study were the women who participated and the participating water work utilities, he said. "We ...

Team Invents Device For Weighing Individual Molecules

...of the now slightly-more-massive nanodevice become slightly lower in frequency--just as thicker, heavier strings on an instrument sound notes that are lower than lighter ones. Because frequency can be measured so precisely in physics labs, the researchers are then able to evaluate extremely subtle changes in...

Studies reveal how plague disables immune system, and how to exploit the process to make a vaccine

...e manage to outsmart the immune system and how, by slightly altering one of the microbe's tools, the researche...ly one-third of the population. It returned with a slightly reduced death count about once a generation for centuries. Although far less common now, the plague...

Male Combat Veterans Rank High In Heart Disease Risk

...ely to be obese than non-combat veterans, and were slightly (1.1 times) more likely to be obese than non-veterans. The Life Course Socio-Economic Status (LCSES) study is investigating the association between exposure to combat stress and behavioral and physical risk factors in aging men who fought in these e...

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