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Tag: "sense" at biology news

St. Jude finds clues to hearing loss from chemotherapy

...t certain nerves or sections of the inner ear that sense sound; that stimulation is then turned into electrical impulses that go to the hearing center of the brain. Understanding how a specific mutation disrupts that cascade might lead to ways to repair the damage, Zuo said. For example, one type of damag...

Five new technologies that promise to transform medicine

...ys Professor Combs. For instance, devices that can sense and transmit heart and breathing rates already exist and implantable lenses are well-known. Other emerging technologies include wave technology to isolate cancer cells, fabrication technology to manufacture customised body parts, and the use of mi...

Detecting explosives with honeybees

...s to harness the honey bee's exceptional olfactory sense where the bees' natural reaction to nectar, a prob...s have long marveled at the honey bee's phenomenal sense of smell, which rivals that of dogs,?said Haarmann. “But previous attempts to harness and understand...

A reason why video games are hard to give up

...to other players. Those benefits trumped a shallow sense of fun, which doesn't keep players as interested. ...rged "as an important satisfaction that promotes a sense of presence, game enjoyment, and an intention for future play," the researchers found. Though d...

Scientists find a key to immune system's ability to remember

...are found everywhere in the body, enabling them to sense and react more quickly when an infectious agent is reencountered. "Now we know one of the reasons we get such a quick response and clearance (of the pathogen) with reinfection," Suresh explains. "If you increase the size of your army, you can cle...

Stormy days ahead for coral reefs

.... "Coral reef experts have long had a general sense of which coral shapes are more vulnerable during storms than others," says the study's lead author, Dr. Madin, who now works at the National Centre for Ecological Analysis and Synthesis (NCEAS) in California, USA. "However, to really predict how thes...

Better sludge through metagenomics

...mmunities. "We found functions that didn't make sense for the current lifestyle of the organism," said Phil Hugenholtz, head of the JGI's Microbial Ecology Program. "Accumulibacter has all the genes necessary to fix carbon and nitrogen, which it would be compelled to do in a nutrient-poor environment li...

Trotting with emus to walk with dinosaurs

One way to make sense of 165-million-year-old dino tracks may be to hang out with emus, say paleontologists studying thousands of dinosaur footprints at the Red Gulch Dinosaur Tracksite in northern Wyoming. Because they are about the same size, walk on two legs and have s...

Beauty and the brain

...e. But whereas that explanation makes intuitive sense when it comes to human faces, Winkielman said, it strains credulity when applied to inanimate objects or animals of a different species, which we are presumably not assessing for reproductive purposes. So Winkielman, with colleagues from the Unive...

Parasitic plants sniff out hosts

...not haphazardly flail about looking for a host but sense volatile chemicals produced by other plants and id...to determine exactly how the parasites are able to sense and respond to host volatiles. They hope to identify the specific chemical receptors involved. The...

Major cancer study aims to identify protein markers for early-stage disease

...n as bioinformatics -- will be critical for making sense of the information, says Fisher. Part of the challenge will be the need to piece together data on fragments of individual proteins, rather than whole molecules, a result of a limitation of mass spectrometry: The instrumentation is not able to weigh ...

Hair samples show babies can be exposed to 'crystal meth' while in the womb

...s. Crystal meth boosts alertness and promotes a sense of wellbeing, euphoria, and exhilaration. It also curbs appetite and enhances sexual arousal. But long term abuse damages nerves in the brain and can lead to psychotic behaviour and aggression. The drug is very easy to manufacture in home labor...

Electric fish in Africa could be example of evolution in action

... fields from a batterylike organ in their tails to sense their surroundings and communicate with other fish. Each species of mormyrid gives off a single characteristic electric impulse resulting in the flash of signals, indicating, for example, aggression, courtship and fear. While the fish may be able to ...

Researchers discover how bacteria sense their environments

... cell, and it must use many different receptors to sense and interpret everything around it. Bacteria can sense in their environments changes in molecular concentrations as small as 0.1 percent, the equivalent of...

'Cellular antennae' on algae give clues to how human cells receive signals

...n cells, such as those in the nose involved in the sense of smell and those in the developing nervous system that sculpt our brains. Uncovering this series of reactions will make it possible to test, for instance, drugs that can affect cilia, in the hope of finding substances that would also be effective ...

Important gene controlling tree growth and development found

... It has been known for a long time that the trees sense that fall is coming by measuring the length of the day. When the days get shorter the trees "know" that it is time to stop growing and set buds, even if it is a very warm fall. The trees are known to display a "critical daylength". If the days get sh...

Do angry men get noticed?

...Current Biology. In evolutionary terms, it makes sense that our attention is attracted by threat in the environment. It has long been hypothesized that facial expressions that signal potential threat, such as anger, may capture attention and therefore "stand out" in a crowd. In fact, there are specific b...

A rice future for Asia

...ng. "We hope they will then return home with a new sense of excitement about rice and its potential both in..."The challenge is to try and translate this into a sense of excitement and interest amongst young people in Thailand and all over Asia." ...

Nanotubes used for first time to send signals to nerve cells

..."Where we want to get to is a device that can both sense and deliver stimuli to cells for things like prosthetic control," Pappas said. "I think it's definitely doable, and we're pursuing that with Jim Tour and his group. It's great to be able to work with a guy who's on the cutting edge of nanoelectronics...

Copying nature could save us energy, study shows

...lop a new kind of dehumidifier technology), insect sense organs (for structural health monitoring) and the egg-laying organ of a wood-wasp (for a new type of steerable endoscope). "Evolution has sculpted animals, insects and plants to produce incredibly efficient machines that carry out a range of impress...

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