Tag: "kind" at biology news
DDT-resistant insects have additional genetic advantage that helps resistance spread
...ibiotic resistance may potentially confer the same kind
of genetic advantage to 'superbug' bacteria, and measures such as preventing certain antibiotics from being prescribed may not halt the spread of antibiotic resistance in bacteria. "We found that DDT resistance in fruit flies not only carries no cos...
Immune system has evolved to prevent autoimmune disease
...o the question becomes, 'Why didn't we evolve that kind
of adaptive response?'" Deem said. Deem's analysis falls within a branch of physics called statistical mechanics, which uses a system's physical behavior at the molecular or atomic scale to build up a picture of the behavior at a larger level. In th...
Discarded placentas deliver researchers promising cells similar to embryonic stem cells
...ls their unique capability for developing into any kind
of specialized cell, the researchers report. And according to the results of their studies, these so-called amniotic epithelial cells could in fact be directed to form liver, pancreas, heart and nerve cells under the right laboratory conditions. "If...
New technology shows our ancestors ate…everything!
...searchers interested in our lineage to obtain this kind
of information," continued Teaford. "And the computer software is phenomenal, the heart and soul of this project. We now have a reliable technology to quickly and accurately measure such surfaces." Teaford said future applications of the computer sof...
Scientists get first glimpse at how plants, most animals repair UV-damaged DNA
...se with UV-damaged DNA, and hit the mixture with a kind
of blue strobe light to simulate the energy that i...e bond is called a photo-lesion, and can lead to a kind
of molecular injury called a dimer. Dimers prevent DNA from replicating properly, and cause genetic ...
Researchers discover key to human embryonic stem-cell potential
...uripotent state indefinitely, preserving them as a kind
of cellular blank slate. The therapeutic goal then is to take these blank slates and coax them into, say, liver or brain tissue. But in order to guide them out of pluripotency with efficiency, we need to know what keeps them there to begin with. Re...
Color perception is not in the eye of the beholder: It's in the brain
...r visual system," says Hofer. "That points to some kind
of normalization or auto-calibration mechanism--some kind
of circuit in the brain that balances the colors for you no matter what the hardware is." In a rela...
'License to kill' enables powerful immune attack cells in mice
...s I on the surface of other cells. MHC serves as a kind
of molecular I.D. badge, helping the natural kille...see if the human version also participates in some kind
of licensing process." The group's research was made possible by a unique mouse line created by Ted...
Scientists and engineers apply nature's design to human problems
...en said. "Georgia Tech is a great place to do this kind
of research. It provides engineers who want to apply their expertise with biologists a new way to design solutions to problems." After this experience, the idea for the center developed further with the help of a biological metaphor ?that of an "inv...
Research casts doubt on circulating stem cells
...t was the idea that the body had at its disposal a kind
of "mobile task force" of repair cells, constantly moving through the body and replacing damaged tissue. Even severe diseases like Duchenne muscular dystrophy (DMD), which destroys all the body's muscles, appeared to be potentially treatable ?indeed,...
Scientists unpick genetics of first 15 minutes of life
...ns. "All sexually reproducing animals do the same kind
of DNA 'dance' when the DNA from the mother's egg cell and the father's sperm cell meet for the first time," said Dr Tim Karr from the University of Bath (UK) who worked closely with Drs Benjamin Loppin and Pierre Couble from Centre de G�n�tique Mol�...
UF study first to quantify validity of DNA I.D. tool using marine snails
...experts, he said. "This new technology is seen as kind
of a fancy, cool tool that will revitalize museums...ry Star Treky if you can imagine McCoy having this kind
of hand-held device, something like his tricorder," he said. "Is that really a cod fillet you're buy...
Scientists develop nanotech-laser treatment that kills cancer cells without harming healthy tissue
...tibody to a carbon nanotube to target a particular kind
of cancer cell." One example is lymphoma, or cancer of the lymphatic system. Like many cancers, lymphoma cells have well-defined surface receptors that recognize unique antibodies. When attached to a carbon nanotube, the antibody would play the role...
Tropical dry forests receive international recognition
...mmediately come to mind. But they are not the only kind
under threat--the tropical dry forest is in as much danger as its popular cousin yet its grave situation continues to be ignored. Dr. Arturo Sanchez-Azofeifa is hoping to change that. Sanchez-Azofeifa is the director of the newly formed TROPI-DRY,...
Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see
...rks to pass on just the right amount and the right kind
of sensory information. Their study, published on... other to shape responses to stimuli. This "go-no" kind
of interaction is necessary, Callaway says, or a positive feedback of chemical signals across neuron...
UT Southwestern researchers unravel control of growing blood vessels
... in turn, increases or decreases depending on what kind
of signals the smooth muscle receives. This complexity suggests many pathways for future treatments. For instance, a treatment might directly control the level of Foxo4, or it may involve one of the signals that control Foxo4. "Now that we understa...
Retinal scans eyed for New Mexico show cattle
... hours of an initial diagnosis. In a first-of-its kind
project for New Mexico, scientists tested 35 market steers from 18 Quay County farm families, using a combination of eye-scanning and radio frequency identification (RFID) ear tags for animal ID evaluation. Most of the cattle were high-value 4-H and ...
Sudden change in social status triggers genetic response in male fish, study finds
... may be altered. Those reactions have to have some kind
of cellular underpinnings." The study also c...ence of another individual, so he has to have some kind
of understanding of what their relationship was in the past and what it is now. This implies a cogni...
Restoring silenced suppressor gene kills lung-cancer cells
... tumors, Fabbri says, "but we do believe that this kind
of gene therapy might be useful when used in combination with chemotherapy and other therapies." ...
K-State researchers study insects' immune system
...ases, Kanost said. "Insects are the most abundant kind
of animal," he said. "They're very successful animals. If you want to understand biology, understanding insects is important. "We're at a point now where we understand at least some of what the immune responses are but how they are regulated is a bi...
1 2 3 4 5 6 7 8 9 10