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Tag: "experience" at biology news

Mice lacking social memory molecule take bullying in stride

...by which social learning is shaped by psychosocial experience and how antidepressants act in this particular brain circuit. They also suggest new strategies for treating mood disorders such as depression, social phobia and post-traumatic stress disorder, in which social withdrawal is a prominent symptom. Drs. O...

Losing sleep undoes the rejuvenating effects new learning has on the brain

...prived rats to more closely mimic the common human experience of inadequate sleep during the work week, said lea...dy know ?and most of us can confirm from firsthand experience -- that lack of sleep impairs cognitive function. Sleep-restricted individuals have a shorter attent...

Viral 'fitness' explains different resistance patterns to aids drugs

...s taking unboosted protease inhibitors (PI) do not experience the peak risk of PI-resistant HIV developing unless they are taking most of their PIs but fall just short of full viral suppression." The researchers found that NNRTI-resistant virus has an advantage over sensitive virus even at very low levels of ...

BioMed Central launches Biology Direct

...d a member of the Editorial Board, comments on his experience of the journal's peer-review process: "This experience of 'open refereeing' has been a very interesting and constructive process for me. As a result of thi...

Faults in newly discovered breast stem cells may lead to tumours

...en apparently eliminated by chemotherapy sometimes experience a recurrence of their cancer. A cancerous stem cell could provide one possible explanation for such a recurrence. Chemotherapy works by targeting cells that are dividing rapidly, which is typical behaviour of cancer cells. But an errant stem-like c...

Efficiency, not more doctors, is the prescription for aging population

... Using the Medicare claims database to examine the experience of chronically-ill people who received most of their medical care at academic medical centers, the researchers calculated the physician workforce inputs per patient during their last 6 months of life. Their analysis found that the full-time equival...

Gene variation increases SIDS risk in African Americans

...events, siblings of SIDS victims, and couples that experience infertility or fetal demise." ...

All placebos not created alike

...ients about side effects directly influences their experience of them. Prior to participating in the study, doctors provided informed consent forms alerting the patients as to the side effects they might experience: temporary soreness for acupuncture and fatigue and dry-mouth for the pills. Of those receiving p...

Man's best friend: Study shows lonely seniors prefer playtime with pooch over human interaction

...rsing home residents something to talk about or an experience to share, Banks said. "There is no need for a dog to be a social lubricant or icebreaker in a nursing home. Residents live with each other, eat breakfast, lunch and dinner with each other, play bingo with each other," Banks says. "The study also fou...

More evidence mammals, fruit flies share make-up on function of biological clocks

...iments (in which light is manipulated to mimic the experience of traveling over multiple time zones) in the lab. In mammals, however, Cry assists in the 24-hour rhythmic expression of clock genes and has nothing to do with re-setting the clock. The researchers sought to determine additional roles for Cry in f...

HIV decline in Zimbabwe linked to behavioural change

...men aged 15 to 17, the percentage reporting sexual experience dropped from 21 percent to 9 percent. At the same time, the proportions of men and women reporting a recent casual sexual partner fell by 49 and 22 percent respectively. ...

US woman gives birth to baby from world's first frozen donor egg bank

...ed as an embryo to the waiting woman who wishes to experience the pregnancy and birth of her baby. "We're very ...ounders of CEI have both professional and personal experience with infertility. Diana Thomas, CEO, had her own three children with donor eggs, and based on that e...

Is the brain wired for faces?

...or schizophrenia. People with autism, for example, experience difficulty with recognizing faces, which might be ... in upright faces, but not in inverted faces. That experience makes faces unique, but there's nothing scientifically special about faces," Riesenhuber says. The ...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...2 methylation test were three times more likely to experience cancer recurrence than those who tested negative, according to the study's lead author, Susan Cottrell, Ph.D., senior scientist at Epigenomics, Inc., in Seattle. Furthermore, the test predicted recurrence in all patient subgroups, including patients ...

AIDS-related cognitive impairment exists in two separate forms

...2 methylation test were three times more likely to experience cancer recurrence than those who tested negative, according to the study's lead author, Susan Cottrell, Ph.D., senior scientist at Epigenomics, Inc., in Seattle. Furthermore, the test predicted recurrence in all patient subgroups, including patients ...

Anti-inflammatory drug's potentially deadly side effect found to be rare

...logical targets in mind," Clifford says. "But this experience also reminds us that there are a lot of hidden icebergs in the ocean we're navigating, and we're going to bump up against those icebergs and have to work out ways to navigate around them." ...

Obese people are more sensitive to pain, suggests study

...begins an exercise program, he may not cognitively experience pain when in fact it is hurting the body on some level," Emery said. "That could lead to severe pain down the road." Emery and his colleagues presented their findings on March 4 in Denver at the annual meeting of the American Psychosomatic Society. ...

Northern birds are fatter!

...the north) or changes in physiology that the birds experience as they move further north", says Williams. "We know there are major differences in gut structure and digestive enzymes between non-migrating and migrating birds, so there might also be similar alterations in migrating bird's physiology further north...

Even fish don't swim well when they're young!

...ry states that when the larvae are very small they experience the water in a different way; it appears thicker, like syrup and harder to swim in. "Momentum can explain some of the poor swimming in larvae, but not all, and the difference in coasting ability cannot be explained by differences in body length eithe...

Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent

...ease are associated with both the anticipation and experience of mirthful laughter," 12:30 p.m.- 3 p.m. Sunday A...lammatory immune responses to the anticipation and experience of the positive mood state changes associated with mirthful laughter." Future research in this area...

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