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Tag: "sense" at biology news

Fighting malaria by manipulating mosquitoes' sense of smell

... spread of malaria by manipulating the mosquitoes' sense of smell is the object of an ambitious research pr...t interfere with the malaria mosquitoes' exquisite sense of smell. The effectiveness of such an olfactory strategy has been demonstrated by a program with th...

Key To Stem Cell Transplant Success Is Tricking Immune System

...both as a storage depot for fuel and as cells that sense hormonal and energy status and in response, secrete hormones that maintain whole-body energy balance," said study author Alan Saltiel. "However, you don't want too many, big fat cells. It's a careful balance, and many diseases are associated with eit...

Short-term Bio Sensors Monitor From Afar

...both as a storage depot for fuel and as cells that sense hormonal and energy status and in response, secrete hormones that maintain whole-body energy balance," said study author Alan Saltiel. "However, you don't want too many, big fat cells. It's a careful balance, and many diseases are associated with eit...

System Drastically Cuts Down Botulism Detection Time

...both as a storage depot for fuel and as cells that sense hormonal and energy status and in response, secrete hormones that maintain whole-body energy balance," said study author Alan Saltiel. "However, you don't want too many, big fat cells. It's a careful balance, and many diseases are associated with eit...

The making of a fat cell

...both as a storage depot for fuel and as cells that sense hormonal and energy status and in response, secrete hormones that maintain whole-body energy balance," said study author Alan Saltiel. "However, you don't want too many, big fat cells. It's a careful balance, and many diseases are associated with eit...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

... "At this point in time, I think it is just common sense to continue drinking only bottled water unless authorities have tested the water now being piped into some facilities and have declared it safe to drink," says Berkelman. "To also prevent risk of infection, people should practice basic hygiene, freq...

Drugs from the deep blue

...products engage your intellectual curiosity with a sense of wonder that comes from standing at the shores of new worlds." ...

Long-sought flower-inducing molecule found

...ne could also show that plants use their leaves to sense the length of the day. By grafting leaves from plants that had been induced to flower on non-induced plants one could show that the induced leaves produce a substance that is transported to the shoot tips where it induces the formation of flowers. In...

Nanotubes inspire new technique for healing broken bones

...ne. "This research is particularly notable in the sense that it points the way to a possible new direction for carbon nanotube applications, in the medical treatment of broken bones," says Leonard Interrante, Ph.D., editor of Chemistry of Materials and a professor in the department of chemistry and chemic...

Scientists create digital bacteria to forge advances in biomedical research

...he behavior of entire populations of cells as they sense their environment, respond to stimuli and move in a three-dimensional world," said Thierry Emonet, a Research Scientist in Philippe Cluzel's laboratory at the University of Chicago's Institute for Biophysical Dynamics. Emonet and his colleagues have...

Clearing jams in copy machinery

...lled. "One possibility is that the beta clamp may sense when Pol III stalls, triggering a change in beta that pulls the polymerase from the primed site, allowing Pol IV to take over synthesis," O'Donnell says. Or, Pol III, upon stalling, may loosen its grip on the template and allow Pol IV to bind the pr...

Monkeys understand numbers across senses

... nonhuman animals or human infants was tied to the sense used to perceive the number. To resolve the question, said Brannon, the researchers decided to design an experiment that used socially relevant stimuli. "Our approach really derives from thinking about why a monkey would need to represent numbers ac...

'Underground' tunnels discovered as means for communication between immune system cells

.... In order to understand how dendritic cells first sense the presence of an antigen and why the reaction is cell-specific, the authors decided to look at calcium flux, a well-recognized early measure of stimulation in numerous cell types. The use of a fluorescent dye, which allows direct measurement of cal...

Helping in a selfish world

...on. Help to relatives (who share your genes) makes sense if it means your relative will have more children who will carry your genes into the next generation. Therefore, relatives are expected to help more. However, in a study published today in the Proceedings of the Royal Society, McMaster University res...

Hormones and growth: The control of body size and developmental growth rate in fruit flies

...and Lynn M. Riddiford address how developing flies sense that they have reached the proper size to initiate a new phase of development. Their new findings show that the prothoracic gland'the organ that releases ecdysone'itself acts as a size-sensing tissue. The researchers found that by manipulating the gr...

Discovery of T-cell 'traffic control' boosts new drug promise

...s for microbes and other infectious agents -- they sense S1P in the outflowing blood and so migrate into the blood and onto tissues where they are needed to fight infection. In a key experiment, Goetzl's and Rosen's labs showed that by chemically displacing S1P, its natural braking effect is released, sti...

Bacteria recognize antimicrobials, respond with counter-defenses

...have evolved antimicrobial detectors. The bacteria sense the presence of antimicrobial peptides as a warning signal. This alarm sets off a reaction inside the bacteria to avoid destruction. University of Washington (UW) and McGill University researchers have revealed a molecular mechanism whereby bacteria...

Nose odors and mouth odors: The brain distinguishes

...flavor perception. Releasing the nose restores the sense of flavor in the mouth. "The fact that the olfactory referral illusion is maintained even though the subject is now aware that the experience is related to an event in the nose demonstrates that olfactory referral is robust and cognitively impenetra...

Temperature regulates circadian clock in zebrafish

...hile it's well known that circadian clock elements sense and respond to light cycles, much less is known about how daily temperature cycles affect the clock's timing mechanism in vertebrates. In the open-access journal PLoS Biology , Kajori Lahiri, Nicholas Foulkes, and their colleagues study temperature...

Discovering an ecosystem beneath a collapsed Antarctic ice shelf

...derwater environment. He added that there may be a sense of urgency to investigate the unusual seafloor ecology below the Larsen shelf because of the likelihood of increased sediment deposition. In addition, he suggests that the newfound system may provide incentive to launch studies to other remote under...

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