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Tag: "quality" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...a for other factors already linked with poor sleep quality in children, including a mothers level of post natal anxiety or depression, her smoking habit, or her social class. This problematic sleep is notable; it may be part of the reason why mood-disturbed pregnancies are linked to childrens behavioral...

Blood test may help signal tumor's remission, return in throat cancer patients

...use this treatment can severely impair a patient’s quality of life by damaging voice, speech, and swallowing, in many cases physicians and their patients are now opting for a combination of chemotherapy and radiation as a first line of treatment. However, there is no way to predict which patients will respon...

Releasing fish for the future

...anding nets without knotted mesh Maintain water quality in on-boat holding tanks, and Use the right rig for the fish species being targeting. Dr Broadhurst said some of these actions were found to massively boost fish survival. “Simply cutting the line rather than attempting to remove hooks swa...

How sneaky HIV escapes cells

...t cells may have initially developed exosomes as a quality control mechanism to get rid of clumped proteins, which are generally broken and useless. However, just as retroviruses exploit other cell processes for their own ends, it now appears they rely on exosomes to get out of infected cells and infect fre...

Bigger horns equal better genes

... size of the horns reliably advertises the genetic quality of the ibex—and the bigger, the better," said Dr. ...ulate over time. Therefore, differences in genetic quality become more apparent as an organism ages. Coltman noted that his study, which incorporated genet...

Pesticides choke pathway for nature to produce nitrogen for crops

...r. Other reasons, Fox said, have been poor soil quality due to overuse, which strips nutrients such as nitrogen and phosphorous from the soil, and to tillage, which interrupts root structures and disturbs the nitrogen-fixing bacteria when soil is turned. "Our research provides another explanation for d...

Dual-imaging technique useful before -- and during -- brain surgery

...ive speech, movement and memory, and also optimize quality of life for those with brain tumors and other neurological conditions. Leach will present this preliminary research in a special scientific exhibit at the American Society of Neuroradiology’s annual meeting, June 9–13 in Chicago. To combine b...

Study investigates 'divorce' among Galapagos seabirds

... another. A male’s capacity to raise offspring, a quality that can vary with time, may carry more weight with a mate than stellar genes or past breeding success, Maness said. She used 14 years of data on about 950 males and 700 females in the study. During that time, the majority of the females in this g...

College students who pull 'all-nighters' and get no sleep more likely to have a lower GPA

...adequate, irregular and of poor quality. As sleep quality and quantity decrease, academic performance worsens. The data collected in this study indicate that the use of a single night of total sleep deprivation is not an effective practice for achieving academic goals," said Pamela Thacher, PhD, of St. Law...

Ants show us how to make super-highways

...viour, shows that these living ‘plugs’ improve the quality of the surface. This increases the overall speed of the traffic and results in an increase in the amount of prey delivered to the nest each day. Professor Franks said: "I think every road user who has ever inwardly cursed as their vehicle bounced ...

Focused ultrasound relieves fibroid symptoms in women

...mized protocol reported greater symptom relief and quality of life improvement than those treated with the original protocol. No serious adverse effects were reported. "We have shown that treating fibroids with an optimized, less restrictive protocol allows for treatment of a greater fibroid volume, which...

Novel system developed to turn data into real-time, interactive 3-D images

...improve upon current technology, in terms of image quality and cost-effectiveness. It is compatible with all imaging devices, will translate and display data immediately and in its entirety, and allows for user-friendly manipulation of the data for evaluation and analysis. Gregory Wilson, associate vice p...

New knowledge improves rice quality

...dge is allowing rice researchers to develop better quality rice varieties that could fetch a higher price fro...s around the world develop varieties with improved quality traits such as better taste, aroma, and cooking characteristics as well as higher levels of nutritio...

New bacteria test could improve quality of fruit and vegetable juice

...juice products adhere to federal and international quality standards. Collaborating with scientists in the United States and from around the world, Mengshi Lin, assistant professor of food science in the College of Agriculture, Food and Natural Resources, has successfully used a new approach combining DNA s...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...rphing, which can now be done with very good sound quality using modern signal processing techniques. As an ...n and guitar instruments truly improve their sound quality and playability over time" Examining this "played in" theory, Andrew Piacsek of Central Washington ...

Scientists seek useful traits in wild cottons

...ally spectacular change. Aside from limiting fiber quality and yield potential, narrow genetics makes them more susceptible to insects and disease." Gannaway and other scientists believe future progress in cotton breeding can only be achieved if sufficient genetic variability remains in global breed...

Sleep quantity affects morning testosterone levels in older men

...f healthy men decline as they get older. As sleep quality and quantity typically decrease with age, objectively measured differences in the amount of sleep a healthy older man gets can affect his level of testosterone in the morning, according to a study published in the April 1st issue of the journal SLEEP...

Revealing the machinery underlying the 'plastic' juvenile brain

...to so adeptly wire itself to adapt to experience—a quality known as plasticity. The extraordinary plasticity of the young brain occurs only during a narrow window of time known as the critical period. For example, children deprived of normal visual stimulation during an early critical period of the first few...

In young mice, gregariousness seems to reside in the genes

...pitched calls in mice and positive experience. The quality and quantity of the call are tightly associated with the nature of the interaction itself." As the mice neared sexual maturity, the genetic influence on social behavior ebbed and the animals became much more responsive to social cues such as gende...

Cure for cancer one step closer

...Institute, said the current absence of large, high quality cancer tissue and blood collections with clinical ... a commitment to patient care, ethical conduct and quality research that aims to improve quality of life through better diagnosis and treatment. ...

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