Tag: "zone" at biology news

Farmers don't need a new superstar toxin to fight bugs

...ngineered protectants used in plants in the buffer zone around the main crops can play a major role in insect control, and they should be easier to identify than highly effective protectants. "You don't find a superstar very often, but it may not be difficult to find good players, or worthwhile insect-...

Stimulating nerve cells with laser precision

...entional electrical method is that we have a large zone around our target neuron that also is affected simply because of the way electricity travels throughout the tissue. Using light to stimulate neurons, we can pick off a single neuron without affecting the other neurons around it." In a matter o...

New study links low fish supply to increased bushmeat hunting

...ame time, Ghana's enforcement of its own exclusion zone is weak, making it difficult to assess the level of illegal fishing by foreign fleets. Many conservation experts say that the fish licensing agreements Ghana and many other African countries have with the European Union and other industrialized natio...

No getting around RET

... impaired migration of neural precursors through a zone called the rostral migratory stream and swell with cells that have failed to reach their normal destination; this phenotype is seen in mice only weakly lacking GFR1 (which is thought by some to regulate NCAM-mediated cell adhesion), but not in mice l...

A puzzle posed by black-headed ducks yields to persistent biologists

...o way for gradual evolution to bring them into the zone of egg mimicry," Lyon said. With different hosts, the black-headed duck's kinder, gentler version of brood parasitism might have been a highly successful evolutionary strategy. Instead, the species finds itself evolutionarily stranded, caught in the ...

NU researcher finds missing atmospheric carbon dioxide

...ed the soil below white oak trees in the temperate zone over four growing seasons and found that the soil below trees exposed to elevated levels of CO2 had an average of 14% more carbon. "Researchers have long been puzzled by observations that show that carbon dioxide levels in the atmosphere are inc...

Revisiting the vertebrate invasion of the land

...ection pressures imposed by life in the intertidal zone are insufficient to have resulted in the requisite aerial respiratory capacity or the degree of separation from water required for the vertebrate land transition. An examination of the effects of hypoxia and exercise on the partitioning of aquatic ...

Researchers discover direct link between agricultural runoff and massive algal blooms in the sea

...ey multiply. The result is an oxygen-depleted dead zone at the bottom of the sea where few creatures can survive. A massive dead zone appears every summer in the Gulf of Mexico off the coast of Louisiana and Texas. Scientists believe ...

Ocean colour satellites guide research ship through South Pacific's watery desert

...n these blue desert waters is the chlorophyll-rich zone around the Marquises Archipelago, the precise reas...when the ship sailed within the complex and patchy zone off Chile." The expedition used daily ocean colour composites of ESA's Mediu...

Sinking coastlines may precede large subduction zone quakes

... If coastal subsidence is common before subduction zone quakes, areas such as those ringing the Pacific Ri...subducting plate, causing a slight dip nearest the zone and a slight bulge farther away. Eventually, the stuck edge lets go in a massive quake, after which ...

Plants become green Mr. Clean to combat toxic messes

...lant roots, encompassing the bacteria, fungi, "the zone around a plant root that is biologically humming and pulsing with many complex levels of biological interaction," Rugh said. The trick to make a common laboratory plant like tobacco into a janitor is genetic engineering. Rugh said genes from bacte...

Coastal dead zones may lead to ecosystem-based fisheries management

...re pointing to various ways that living along dead zone edges may lower growth rates of some Gulf fish and... one has been able to make a link between the dead zone and the production of valuable fisheries," Crowder said. "People say, 'so what?' What impact does i...

Oceans more vulnerable to agricultural runoff than previously thought, study finds

...ey multiply. The result is an oxygen-depleted dead zone at the bottom of the sea where few creatures can survive. A massive dead zone appears every summer in the Gulf of Mexico off the coast of Louisiana and Texas. Scientists believe ...

Essential mangrove forest threatened by cryptic ecological degradation

...time such practices drastically affect the coastal zone by introducing an excess of fresh water. The consequences range from adverse shifts in the composition of mangrove tree species to disrupted ethnobiological relationships, lagoon fisheries, and many additional functions provided by mangroves. The aut...

'Free-for-all' illegal logging of mahogany in Peruvian parks, says Duke-based monitoring group

...e learned that Peru was reclassifying the reserved zone as a national park. "This process would have required several years and involved many different organizations, so it wasn't a direct result of our investigation," said Fagan, a Nicholas School graduate. "But I think we provided a really strong case f...

In asthma, it's not the drugs but the inflammation that increases cardiovascular risk, damage

...f more highly activated neutrophils to the infarct zone during an acute MI, leading to significantly more cardiac tissue damage," she added. Evidence for a role of inflammation in the development and progression of cardiovascular diseases has been growing rapidly. Studies demonstrate that blood levels of ...

The petroleum umbrella

...ken. Furthermore, the North Sea is not the easiest zone for this study given the fact that the high seas make the work of the scientists difficult....

For sardine and anchovy, El Nio events do not always have the same effects

...ases in these conditions. In parallel, the frontal zone between the colder coastal waters and the warmer oceanic waters, highly suitable for sardine to develop, is pushed back towards the open waters. In the process, conditions become unfavourable for sardine again, especially so in that their larvae are ...

Now scientists think you'd be 'roasted' in a black hole

...nward faster than light, before finally entering a zone of normal space at the core. It's this core of normal space which Professor Hamilton has been working on. A so-called singularity sits at the centre of the core, swallowing up matter. But according to Professor Hamilton, the strange laws of general r...

Hawaiian soils reveal clues to cultural history

...nd adapted their agricultural system to an optimal zone for sweet potato cropping within a landscape that was on the marginal limits for tropical root production," wrote the authors. "As subsistence increases, society can produce surplus and afford to have different classes including warriors, priests a...

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(Date:12/17/2014)... 2014  Automation is fundamentally transforming the travel ... at international borders. Over the past decade, ePassports, ... veteran travelers to self process through border control ... at an increasing number of airports, seaports, and ... According to Maxine Most , Principal at ...
(Date:12/11/2014)... WINSTON SALEM, N.C. , Dec. 10, 2014  That ... known for quite a while. Hypertension – the medical term ... disease in the early 1800s, and the inflatable cuff that,s ... That doesn,t, however, mean there,s nothing new about hypertension, ... punctured some long-held beliefs about the condition and the best ...
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Wake Forest Baptist ... education building for its School of Medicine. Funding for ... larger capital campaign that will be publicly launched next ... be located in the former 60 series R.J. Reynolds ... Innovation Quarter. Construction will begin immediately with plans to ...
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