Grape expectations for healthier wine
...ress in plant cells, it could be that the ozone is perceived as a biochemical insult. Andrew Waterhouse, Chair of the Department of Viticulture at University of California, Davis, said that because wine growers don't store grapes for prolonged periods, they are unlikely to use ozone in any preservation proce...Is there a pilot in the insect?
...tics models to test biological principles that are perceived only vaguely at the outset. These hidden forces underlying animal behavior can then be understood more exactly by permanently shuttling between biology and robotics. These principles have been tried and tested for millions of years, and today they ......lieved to be unique to humans. Other animals were perceived to be incapable of dissociating themselves from the present and any current motivation. Sometimes animals may appear to recognise future needs, but they are only exhibiting behaviours that are either instinctual (e.g. nest building) or prompted by i...National panel led by LSU Chancellor releases report on Corps of Engineers
... River Gulf Outlet canal in New Orleans, which was perceived as a great idea on paper and was done for the right economic reasons at the time, but it eventually resulted in saltwater intrusion that damaged the adjacent wetlands." "Here in Louisiana, we appreciate how water resource planning requires national...Johns Hopkins researchers examine why people eat the foods they do
... in the association between socio-economic status, perceived barrier of food price, perceived benefit of diet quality and dietary intake. Income constraints on individuals and families can lead......icity for Egyptian fruit bats, the bats themselves perceived both fructose and sucrose as being beneficial. We think that this observation may be due to a matter of taste or flavour, explains researcher Francisco Sanchez, The perception of sweetness versus bitterness may vary according the type of sugar and th...New findings in smell and taste
...ay provide a mechanism for the slow changes in the perceived qualities of odors. GABA, A Neurotransmitter Found in Taste Buds - Glutamate decarboxylase (GAD), an enzyme that produces gamma-amino butyric acid (GABA), is found in taste buds. The enzyme functions to produce GABA which may interact w...Scientists unlock secret of what makes plants flower
...th. Earlier research had shown that plants' leaves perceived seasonal changes in day length, which triggers a long-distance signal to travel through the plant's vascular system from the leaf to the shoot apex, where flowering is induced. However, the identity of the long-distance signal remained unclear. T...Halos and horns: Fixing the 'taste' of diet soda
...erence, and that's why diet lemon-lime drinks were perceived as tasting more like their non-diet counterpart than cola-flavored drinks," Lee said. "It's probably also the reason the new lime diet colas are so popular. The sour taste of the lime works with the carbonation to keep the mouth busy so the consume...Scientists report new take on sexual signaling
...that increases her own survival increases with her perceived risk of predation. That a females choice of a mate is based on sexual signals that benefit her directly is a fundamentally new and perhaps widely applicable idea," said Tae Won Kim, who did this work as a student at Seoul National University and is ...Research suggests men's sexual behavior adapts to perceived threats
...of intercourse, as well as behavior in response to perceived infidelity that all serve to increase the success of fertilization. "The studies have shown that when partners are separated for periods of time, males are more likely to arouse easily, produce more sperm, and even rape their partners," says Shackelf...Mule deer moms rescue other fawns
...layed, twisting and turning as they confronted the perceived attackers. Whitetail mothers that came close to the speaker tended to withdraw right away and then stayed safely outside that distance. The behaviour of mule deer defies traditional explanations that parental care, kin selection or reciprocity play...Duetting birds with rhythm present a greater threat
...of those timing differences on the level of threat perceived by members of the birds listening audiences remained uncertain. Hall and study collaborator Robert Magrath of Australian National University, Canberra, tested the function of duet precision by broadcasting coordinated and uncoordinated songs on twe...American Chemical Society's Weekly PressPac -- May 30, 2007
...s Chemical & Engineering News When considering perceived obstacles to coveted achievements the four minute mark when running a mile or the speed of sound in aviation a biological barrier that frustrates efforts to develop critically-needed new drugs for brain diseases makes many others pale in comparison...Risk-taking in infertility treatment correlates with women's negative moods
... twin or triplet versus a singleton pregnancy; the perceived likelihood or a twin or singleton pregnancy; and the desirability of SET. Risk taking behaviour was measured by asking women to make a graded endorsement of a lower risk versus a higher risk option SET versus two embryo transfer (2ET), and...Color is in the eye of the beholder
... a variety of colors). Two phenomena explain the perceived shift in color of pumpkin seed oil from red to green: Firstly, the distinctive change in color shade of the oil is due to a change in oil layer thickness. As the oil layer thickens, the oil changes its appearance from bright green to bright red. ...Investigating antibiotic use in acute care patients
...be killed. "Antibiotic use in hospitals is often perceived to be solely directed against only bad bacteria. "In reality, antibiotics also act against entire microbial communities, including the good bacteria which can protect patients from pathogenic bacteria. "Antibiotics do not just eliminate bad bacte...Reading a face is tricky business
...e faces. Our results show that an unconsciously perceived signal of threat, such as a brief facial expression of fear, can still bubble up and unwittingly influence social judgments and how we act, said Li. Those with a more anxious personality exhibited more biased negative evaluations of fear-primed su...Human knowledge is based upon directed connectivity between brain areas
...stronger degree of connectivity occurs, whenever a perceived object is familiar, that is whenever specific knowledge is available and can be used for processing. The contribution of our study is that by using a new method of signal analysis we succeeded in measuring the directionality of neuronal interactions....