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Tag: "problem" at biology news

MIT device draws cells close -- but not too close -- together

... and Brigham and Women's Hospital, have solved the problem with a novel device. The work promises to allow re...ts about how to solve this cellular space and time problem involved another children's game: plastic puzzles with squares that slide around on a grid. They won...

Molecular motors and brakes work together in cells

...The molecular motor is the train's engine, but the problem is that the cargo -- the molecular brakes -- gets longer, slowing down the daughter train. But when the train gets to the end of the track it remains attached to the end of mother microtubule. At the tail end, it stops moving and that defines the reg...

Researchers to study why dead zone returned to Lake Erie

...ulating the environmental movement. We thought the problem was solved, and the surprise is in the last few years the dead zone is back." Researchers from U-M, the Cooperative Institute for Limnology and Ecosystems Research, NOAA, and several other universities will study the possible causes of the dead zon...

ASU researchers test antibacterial effects of healing clays

...nella typhimurium, Pseudomonas aeruginosa (often a problem as an opportunistic infection in burn wards) and Mycobacterium marinum (related to Mycobacterium ulcerans, which causes Buruli ulcer disease). The clay was also found to partially inhibit the growth of pathogenic Staphylococcus aureus, including a mu...

Global map shows new patterns of extinction risk

...s means that even if a mountainous area has a real problem with endangered amphibians in its creeks and rivers, mammal and bird species in the same area might be flourishing. It's really important not to assume that there are simply a number of hotspots across the globe where everything living there is endan...

By 2048 all current fish, seafood species projected to collapse

...able data." Researchers also determined that the problem is much greater than losing a key source of food. Damage to the oceans impact not only fisheries, but the ocean ecosystem's overall productivity and stability. Specific services that have declined involve the maintenance of water quality by biologica...

Plant studies reveal how, where seeds store iron

...plants. Their research helps address the worldwide problem of iron deficiency and malnutrition in humans. The team found that iron is stored in the developing vascular system of the seed of Arabidopsis, a model plant used in research. In particular, iron is stored in the vacuole, a plant cell's central stor...

Fake pesticides threaten food safety

...tle or no resemblance to the original. And it is a problem that is getting worse every year, according to the European Crop Protection Association 'Clearly there are risks when products that have not been properly studied or evaluated are being brought onto the market,' said Roger Doig, President of the ECPA...

Molecular atlas provides new tool for understanding estrogen-fueled breast cancer

...t likely to be effective for them and overcome the problem of resistance to current hormone therapies, the study authors say. The estrogen receptor (ER) is an intricate protein net in the nucleus of breast cancer cells. When the receptor snares an estrogen molecule, it sets in motion a cascade of activity ...

Math model predicts cancer behavior

...ing the tools of mathematics to tackle the complex problem of cancer behavior. "We have mathematics driving experimentation," Quaranta said. The team will tailor its biological experiments to test and validate the model. If the experimental data don't fit the predictions from the model, either the experim...

Plant studies reveal how, where seeds store iron

...plants. Their research helps address the worldwide problem of iron deficiency and malnutrition in humans. The team found that iron is stored in the developing vascular system of the seed of Arabidopsis, a model plant used in research. In particular, iron is stored in the vacuole, a plant cell's central stor...

Male contraception: One door opens, another closes

...sting it in men and getting it to market." This problem of moving leads from the lab to human studies affects all types of contraceptive research. Michael Free, vice president and senior advisor for technologies at Seattle-based nonprofit PATH, points to the female condom as an example. "We got fundin...

Smashing the time it takes to repair our bones

...rly and with an aging population this is a growing problem for orthopaedic surgeons to accommodate and one that is not easily solved with current methodologies," he said. "In the future we might be able to make a device utilising these combined stimulants that could be attached to the body and help heal t...

'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines

...ting virus', although drug-resistance is a serious problem with many microbes. 'Protecting virus' also prot...hould protect a chicken for weeks. Flu is a major problem in the horse racing industry and in domestic horses. It also has very recently become a problem in ...

Recycling technology

...research aimed at averting a growing environmental problem caused by discarded liquid crystal displays (LCDs). LCDs are a fixture of modern life, appearing in everything from pocket calculators and mobile telephones to wide-screen televisions. But the liquid crystals they contain are potentially hazardo...

New technique boosts size of proteins that can be analyzed

...n you isolate a protein from a mixture, your first problem is to know which one it is," said Fred McLafferty, Cornell's Peter J.W. Debye Professor Emeritus of Chemistry and Chemical Biology and senior author of the paper published in the Oct. 6 issue of the journal Science. "Mass spectrometry characterizes a...

Train your brain to hear your friends at a party

...r sound. But, if you have some form of hearing problem in at least one ear, this ability is disrupted and... which is being blocked. It's compensating for the problem in a really clever way." Irving is trying to locate the place in the brain which is channeling th...

Progress made in HIV vaccine development

...une response. DNA is simple and does not have the problem of anti-vector immunity. However, DNA may be less potent than vector-based gene delivery strategies. Replication-defective rAd5 has the advantage of targeted, efficient gene delivery and high potency, but may be susceptible to anti-vector immunity,...

Fast-freeze snapshot yields new picture of nerve-muscle junction

...ventional gluteraldhyde fixation technique was the problem with the earlier view of vesicle positioning in nerve synapses, and she predicted that future use of the new technique will open up new discoveries of the roles various proteins play in nerve synapses. "It's going to revolutionize the way we do this...

Controlling antibiotics and antibiotic resistance in hospitals

...Doebbeling. "Antibiotic resistance is a growing problem for healthcare. Showing that recommended measures seem to prevent it in this nationally representative sample of hospitals is really encouraging," he said. ...

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