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Tag: "designed" at biology news

UTSA researchers examine effects of global warming on Antarctic

...ndation (NSF) funded the 6,000 mile trip which was designed to allow scientists to collect data aboard the Swedish icebreaker Oden during transit from Punta Arenas, Chile to the United States' McMurdo Research Station on the Antarctic continent, south of New Zealand. The Oden was chartered by NSF to break t...

A genetic 'gang of 4' drives spread of breast cancer

... in breast cancer, so such trials would have to be designed very carefully to understand how and whether the new drug combination would be of additional benefit." In the article published in the Proceedings of the National Academy of Sciences, Massagué and his colleagues explored how the entire group of 18 ge...

Fitness has fallen since the days of Ancient Greece

... the triremes had to reach great speeds -- so were designed with more than three times more rowers than earlier warships. By placing the rowers on three tiers, the ship could remain a manoeuvrable length and weight. The trireme used in Dr Rossiter's research, Olympias, was built in the 1980s and was used t...

Robotic therapy helps restore hand use after stroke

...wo-hour therapy sessions, spread over three weeks, designed to improve their ability to grasp and release objects. All worked with HOWARD for the 15 sessions. For seven patients, HOWARD shaped and helped complete movements across all sessions, while six had complete support from HOWARD for only the second hal...

Secret of worm's poison pill box protein could produce new natural insecticide

...a protein from a bacterium acts like a cunningly designed poison pill box that could now be used as a basis of a new range of natural insecticides. It had been known that nematode worms can infect and kill insect pests with the help of a bacterium which they harbour inside their intestine. The bacterium ...

Technology reveals 'lock and key' proteins behind diseases

...ow U of T and Johns Hopkins University researchers designed a device to test for proteins that play an important role in human health and disease. The technology, iMYTH (or integrated membrane yeast-two hybrid system), scans cells to detect proteins that interact with key proteins called ATP-binding cassette ...

Research on grey mould offers possible breakthrough in tomato cultivation

...pes to earn his doctorate on 3 April 2007. Finkers designed highly efficient methods whereby tomato varieties can be resistant to grey mould. The leading company De Ruiter Seeds is already applying these methods in its breeding programme. Finkers started off with wild tomato accessions that were resistant to...

Manipulating nature: Scientists query wildlife birth-control method

...(catalysts that modify the action of other agents) designed to boost the effectiveness of immuno-contraceptives. "The most commonly used adjuvant, Freund's adjuvant, also induces a range of undesirable side-effects and its use is being challenged on animal-welfare grounds." ...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...fficacy. To date, these vaccines have rarely been designed to directly stimulate one of the body's most critical immune responders, the helper T cells. Though helper T cells contain receptors on their cell surfaces that are capable of recognizing and binding to tumor-related antigens, scientists have been st...

Yale biologists 'trick' viruses into extinction

...cleus to reproduce. Current anti-HIV therapies are designed to maintain high T-cell counts in the human body, so that the immune system can properly function. But, these drugs therapies are very expensive. Turner suggests, "A cheaper option is the possibility of engineering trap cells that have CD4 molecu...

Scientists find method to pick noncompetitive animals, improve production

...rom Purdue University, the Netherlands and England designed mathematical equations based on traits to choose animals that are more congenial in groups, said William Muir, a Purdue Department of Animal Sciences geneticist. The new method is a tool that may contribute both to animal well-being and to securing t...

New cell type identified in cancer development

...nusual cells might be precancerous stems cells and designed several tests and experiments to find out more about them. They selected three pCSC lines and injected them subcutaneously, intraperitoneally or intravenously into three groups of mice. The mice represented different levels of immune function: One...

Homing pigeons get their bearings from their beaks

...nsional pattern with different spatial orientation designed to analyze the three components of the magnetic field vector separately. They react to the Earth’s external magnetic field in a very sensitive and specific manner, thus acting as a three-axis magnetometer. The study suggests that the birds sense ...

Is there a pilot in the insect?

...r of a thousandth of a millimeter) and a specially designed microscope. They then produced an electronic microcircuit based on this principle. The most recent version weighs only 0.2 grams. This is the neuron that does most of the work on board the microhelicopter. The optic flow regulator helps explain how...

UCSF brain tumor vaccine trial shows promising results

...rvival rates, although this phase 1/2 study is not designed to primarily evaluate efficacy. The patients in th...gerprint?of the patient’s particular cancer and is designed to reprogram the body’s immune system to target only cancer cells bearing this fingerprint. The vacc...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

As the first FDA-approved cancer vaccine, designed to protect against human papillomavirus, has moved...ade by GlaxoSmithKline, which funded the study, is designed to protect against two strains of HPV, types 16 and 18, which together are thought to cause nearly 7...

Researchers from the UGR use a bacterium to obtain biopreservatives from food

...tion that AS-48 exerts on bacterial membranes. "We designed a strategy to carry out site-directed mutagenesis on the as-48A gene, the one which generates enterocin AS-48", the researcher from Granada pointed out, "and we have studied the role of seven amino acids that could be involved in biological activity ...

DNA ends: Common tool, different job

...n strands of DNA that a cell's repair machinery is designed to fix. This has been a long-standing puzzle, because mending chromosome ends as though they were double-strand breaks would result in either unregulated degradation or end-to-end fusions. Such repair events are lethal for the genome, and in certain ...

Global 'sunscreen' has likely thinned, report NASA scientists

...osol signal from satellite measurements originally designed to observe clouds and weather systems that date back to 1978. The resulting data show large, short-lived spikes in global aerosols caused by major volcanic eruptions in 1982 and 1991, but a gradual decline since about 1990. By 2005, global aerosols h...

HIV protein enlisted to help kill cancer cells

...that selectively bind to cancer cells. "Dr. Mach designed tracers to visualize cancer in PET (positron emission tomography) scans," Hawkins says. "By binding our molecules to the tracers, we can deliver them to cancer cells. We've seen phenomenal results in the lab." Next Hawkins plans to combine pro-apop...

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