With the season newly underway, Formula 1’s struggles are already clear to see. The exorbitant costs of competing, combined with uneven profits is especially hurting the chances of survival for smaller teams. In fact, with only ten teams on the grid – down from 20 in 1989 – 2015 risks being remembered as one of the least contented F1 championships of history.-->
In the production of organic vegetables, nitrogen is important, yet can be quite costly to manage. Nitrogen management is even more challenging when production practices call for the use of polyethylene mulch combined with fertigation. The authors of a new study published in HortScience have found that hydrolyzed fish fertilizer holds promise as an "economically feasible" nitrogen source for growing organic vegetables.
Before a male damselfly hot-headedly enters into a duel of aerial sparring, it first works out its strategy. It gives its opponent's wings a once-over to assess its strength, knowing that more transparent wings and larger red spots generally show a stronger rival. Those who then decide to engage in long fights either try to wear their opponent down, or dazzle them with brilliant aerial moves that are too hard to follow. These damselfly war game strategies are set out in a study published in Springer's journal The Science of Nature - Naturwissenschaften. Two research groups united forces to arrive at these findings, one based in Brazil, led by Rhainer Guillermo-Ferreira, and the other in Germany, led by Stanislav Gorb.
The American Gastroenterological Association (AGA) has released new guidelines on the management of asymptomatic neoplastic pancreatic cysts found incidentally during computed tomography (CT) or magnetic resonance imaging (MRI).
The author of a commentary being published in Annals of Internal Medicine explains how the AGA's bold new recommendations will affect the way physicians consider diagnostic testing. The new guidelines back away from previous recommendations that were more aggressive.
Rather than promote invasive work-up, surveillance, or surgery for typical patients, the AGA guidelines restrict aggressive follow up to patients with more high-risk features.
An analysis conducted by researchers at the Johns Hopkins Center for a Livable Future (CLF) found that the risks of drinking raw (unpasteurized) cow's milk are significant. Consumers are nearly 100 times more likely to get foodborne illness from drinking raw milk than they are from drinking pasteurized milk. In fact, the researchers determined that raw milk was associated with over half of all milk-related foodborne illness, even though only an estimated 3.5% of the U.S. population consumes raw milk.
One of the dominant hypotheses of evolution is that our genus, Homo, evolved from small-bodied early humans to become the taller, heavier and longer legged Homo erectus that was able to migrate beyond Africa and colonize Eurasia.
Not so, according to a new anthropology paper.
The Australian federal government again failed in its attempt to allow universities to set their own prices for student fees. The key concern with the package was that student fees would rise sharply. However, this is not a necessary outcome of a deregulated university system.
Prices could be pressured to stay low if there were more competition.
You're out shopping for basic goods you have bought many times. Is choosing these products a complicated decision or a simple one?
It could be complex: Factors like price, quality, and brand loyalty may run through your mind. Indeed, some scholars have developed complicated models of consumer decision-making, in which people accumulate substantial product knowledge, then weigh that knowledge against the opportunity to explore less-known products.
Banning sodas from school vending machines, building walking paths and playgrounds, adding supermarkets to food deserts and requiring nutritional labels on restaurant menus: Such changes to the environments where people live and work are among the growing number of solutions that have been proposed and attempted in efforts to stem the rising obesity epidemic with viable, population-based solutions. But which of these changes actually make an impact?
An extensive study of global habitat fragmentation - the division of habitats into smaller and more isolated patches - points to major trouble for a number of the world's ecosystems and the plants and animals living in them.
The study shows that 70 percent of existing forest lands are within a half-mile of the forest edge, where encroaching urban, suburban or agricultural influences can cause any number of harmful effects - like the losses of plants and animals.
The study also tracks seven major experiments on five continents that examine habitat fragmentation and finds that fragmented habitats reduce the diversity of plants and animals by 13 to 75 percent, with the largest negative effects found in the smallest and most isolated fragments of habitat.
Clear and realistic expectations are key to successfully hiring heads of departments, say Professor Pierre-Alain Clavien, University of Zurich, and Joseph Deiss, former President of the Swiss Confederation, in a commentary in Nature magazine.
Selecting a chair for a position in clinical academic medicine is often problematic, with the diverse demands placed on the position proving a constant source of debate. Today's heads of departments are not only expected to be outstanding physicians, researchers, and teachers, but also adroit and cost-conscious managers. Finding people with such an extraordinary skill set is a formidable task.
A controversial decision in 2011 to blow up Mississippi River levees reduced the risk of flooding in a city upstream, lowering the height of the rain-swollen river just before it reached its peak, according to a newly published computer modeling analysis led by UC Irvine scientists.
The work focused on a Missouri agricultural area called the New Madrid Floodway that was inundated when the levees were detonated. The researchers found that the region would have flooded anyway if the river had been allowed to overtop the levee banks. And separate modeling showed that the resulting damage to crops and buildings would have been similar either way, though the detonations did shift the damage zone toward Missouri and away from Illinois and Kentucky.