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Tag: "problem" at biology news

Nanotechnology shows promise as next wrinkle fighter

...g and wrinkling. It's a new solution to a critical problem as thin films become more important in new technology such as electronic monitors. The cosmetic arsenal to fight human wrinkles embraces technologies that seems crossed with science fiction ?from microdermabrasians to lasers to Botox injections ?...

Scientists perform 'tricky' operation

...ntries where it has the most impact. "This is a problem as infection with T. vaginalis increases the transmission and acquisition of many other serious STIs, including HIV. "Furthermore, prolonged infection with T. vaginalis associates with pre-term birth, low infant birth weight and some cervical canc...

Termites get the vibe on what tastes good

...r feeding habits, and address the very significant problem of termite damage in buildings and other structures," Mr Inta says. ...

New research may overturn conventional wisdom on drug-resistant tuberculosis

... year. Drug-resistant TB is a growing problem worldwide. Most resistance is believed to derive from inefficient treatment, leading to mutations. This study found that 33 of 38 patients had a different strain of TB during treatment than before treatment. Improved method...

Bird sex is something else

.... elegans) and humans each work around this dosage problem using different molecular pathways. By contrast, for birds it appears that most genes on the Z chromosome are not fully dosage-compensated, at least at the transcriptional level. The study challenges current thinking about the role and mechanisms ...

Can engineered immune cells stop AIDS?

...ayloads to specific cells. As challenging as the problem has been, researchers in the USC Viterbi School of...them to generate "designer immune cells." Another problem seems to be making sure lentiviral vectors target only hematopoietic stem cells, and not other types...

Ultrasound upgrade produces images that work like 3-D movies

...gle, flat image. Stereoscopic images solve that problem by taking two "snapshots" of the same object from slightly different angles, mimicking the normal difference between left and right eye views. Special glasses or goggles can then be used to fuse the two images into one, gaining a 3-D effect. This ...

Scientists produce neurons from human skin

..."Producing neurons from skin cells could solve the problem of human neural cell availability for research," explains Berthod. "Since neurons do not multiply, researchers now have to rely on laboratory animal neurons to perform their experiments." In the longer term, the ability to produce neurons from ski...

Magnetic system could be key to surgery without scars

.... He said the technology may solve the fundamental problem of guiding instruments through the abdomen for natural orifice surgery, which now inserts the instruments through the throat, colon or vagina. “The current state of the art for laparoscopic surgery requires four or five holes. The question behind ...

Ocean's 'twilight zone' may be a key to understanding climate change

...n experimental device that overcame a longstanding problem of how to collect marine snow falling into the twilight zone. ...

How fish conquered the ocean

...radox that fishes that live in water should have a problem acquiring it. Yet it was this paradox that provided the trail of clues for us to follow". "The physiological problems of reverting from a fresh water environment to the saline seawater is demanding for the water balance of fishes", says professor ...

Magic Beans -- Anti-obesity soya could help prevent diabetes

... black soya in the treatment of diabetes. ‘The key problem in type II diabetes is impairment of insulin action, mainly as a result of excess abdominal adipose tissue - so loss of weight often improves glycaemic control,?says Dr Bender. Lynne Garton, a registered dietician and nutritionist and consultant t...

Genes and genius: Researchers confirm association between gene and intelligence

...uential reasoning, spatial perception and abstract problem solving skills. When people had more than one positive variation in the gene, the improvements in performance IQ were cumulative. The study's findings are available online in Behavioral Genetics and will appear in an upcoming print issue of that jour...

Researcher examines polymers created with poultry feathers

... industry and help solve the growing environmental problem of plastic waste. According to the U.S. Environmental Protection Agency, more than 29 million tons of non-biodegradable plastic waste ends up in landfills each year. Justin Barone, associate professor of biological systems engineering at Virginia Te...

Cholera pathogen reveals how bacteria generate energy to live

...with respect to the two sides of the membrane. The problem is that the enzyme is not amenable to standard methods of determining structure. Since an ion pump needs to carry ions from one side of the bacterial membrane to the other, the enzyme has to reach all the way from the water-like medium inside the cel...

Chromosomal microarray analysis proves accurate

...d the technique does not help with identifying the problem in all children, but there is a five to 12 percent...se. The array technique identified the chromosomal problem (too much or too little genetic material in a particular spot) in 8.5 percent of the total group of ...

New approach could lower antibiotic requirements by 50 times

...t disrupt the friendly bacteria in the gut - a big problem with conventional antibiotic treatments. 'The prospect of using such treatments to prolong the life of existing agents and delay the onset of widespread resistance is to be welcomed,' said Jim Spencer a lecturer in microbial pathogenesis at the Uni...

Protein averts cell suicide but might contribute to cancer

...A damage that exists." DNA damage is a routine problem for cells, Suo says. For example, every cell loses more than 10,000 DNA bases daily. Dedicated repair enzymes fix 80 percent or more of this damage, but the rest remains. Cells use Y-family enzymes to bypass that remaining damage when making new ...

HIV dementia alarmingly high in Africa

...hese will shed additional light on the devastating problem of HIV in resource-limited countries like Uganda and encourage more programs that bring much-needed medication to these poor regions of the world," Sacktor says. Sacktor says there’s little accurate data about HIV dementia patients in other parts...

Unique tomatoes tops in disease-fighting antioxidants

...d's population. Its deficiency is a serious health problem in many developing countries. "Our study showed that a tomato can also increase beta carotene levels in the blood," Schwartz said. While these special tomatoes were grown just for this study, the researchers have pre-commercial lines of both varie...

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