Culture
The common perception that pesticides reduce or eliminate target insect species may not always hold. Jennifer Weathered and Edd Hammill report that the impacts of agricultural pesticides on assemblages of aquatic insects varied resulting in distinct ecological winners and losers within aquatic communities. While pesticides reduced many species, the evolution of pesticide resistance allowed the mosquito Wyeomyia abebala to actually benefit from the application of the pesticide-Dimenthoate.
A San Diego State University study is among the first to describe trends in cancer mortality by specific Hispanic group for the 10 leading causes of cancer deaths nationwide.
There are subtle and sometimes significant differences in food habits, cultural mores, and lifestyles among Cubans, Mexicans, Puerto Ricans, and Central and South Americans in the U.S. This also extends to their risks of getting cancer and dying from it. Yet the subgroups tend to be bunched under the larger umbrella of Hispanic Americans, much like Asian Americans, despite the inherent diversity.
The Sun is why we're here. It's also why Martians or Venusians are not.
When the Sun was just a baby four billion years ago, it went through violent outbursts of intense radiation, spewing scorching, high-energy clouds and particles across the solar system. These growing pains helped seed life on early Earth by igniting chemical reactions that kept Earth warm and wet. Yet, these solar tantrums also may have prevented life from emerging on other worlds by stripping them of atmospheres and zapping nourishing chemicals.
Sleep patterns can predict the accumulation of Alzheimer’s pathology proteins later in life, according to a new study of older men and women published in JNeurosci. These findings could lead to new sleep-based early diagnosis and prevention measures in the treatment of Alzheimer’s disease.
High blood pressure may affect conditions such as Alzheimer's disease by interfering with the brain's waste management system, according to new research in rats published in JNeurosci. Maintaining blood vessel health could therefore help stave off cognitive decline.
Some dinoflagellate plankton species are bioluminescent, with a remarkable ability to produce light to make themselves and the water they swim in glow. Now, researchers reporting in Current Biology on June 17 have found that for one dinoflagellate species (Lingulodinium polyedra), this bioluminescence is also a defense mechanism that helps them ward off the copepod grazers that would like to eat them.
Most fishing communities from North Carolina to Maine are projected to face declining fishing options unless they adapt to climate change by catching different species or fishing in different areas, according to a study in the journal Nature Climate Change.
Some Maine fishing communities were at greatest risk of losing their current fishing options, according to the study by Rutgers and other scientists.
To understand our brains, scientists need to know their components. This theme underlies a growing effort in neuroscience to define the different building blocks of the brain -- its cells.
Bottom Line: Adults who had pediatric-onset of multiple sclerosis (MS) before they were 18 were more likely to have greater cognitive consequences than patients who developed MS as adults. This study used Swedish registry data and included 5,704 patients with MS (300 of whom had pediatric-onset of the disease), and it compared test scores reflective of information-processing efficiency. Researchers report scores were lower, and declined faster, among patients with pediatric-onset MS compared to patients with adult-onset MS.
PHILADELPHIA - The human immune system relies on a delicate balance of finely tuned cell types that keep germs and cancerous cells in check. In cancer and chronic infections this balance can be disrupted, resulting in immune system dysfunction or "exhaustion." An important protein called TOX, which varies in amount in different immune cell types, controls the identity of the cells that become exhausted, according to researchers in the Perelman School of Medicine at the University of Pennsylvania.
The myth that modern wheat varieties are more heavily reliant on pesticides and fertilisers is debunked by new research published in Nature Plants today.
Lead author on the paper, Dr Kai Voss-Fels, a research fellow at The University of Queensland, said modern wheat cropping varieties actually out-perform older varieties in both optimum and harsh growing conditions.
A chubby teen lolling on the sofa for hours on end, the game controller in one hand, a bag of crisps at his side and a bottle of coke on the coffee table. This is the mental picture many people have of the typical gamer. Along with this goes the widespread notion that frequent gaming contributes to obesity. Is this justified?
High-flying careers in the airline industry don't mean sky-high salaries for women, according to new research by Swansea University.
The gender pay gap within airlines is often attributed to the fact that men frequently carry out high technically skilled jobs such as pilots and mechanics, whereas women commonly work in customer service roles like cabin crew.
Aggressive behaviour in pet dogs is a serious problem for dog owners across the world, with bite injuries representing a serious risk to both people and other dogs. New research by the University of Bristol has explored the factors that in?uence how owners manage aggressive behaviour in their dogs. The study found that clinical animal behaviourists should focus on helping dog owners to feel confident in the effectiveness of the behaviour modification techniques that they recommend and, in their ability, to actually use them successfully.
BUFFALO, N.Y. -- For decades, Big Tobacco has sold African American smokers on menthol-flavored cigarettes through targeted marketing campaigns. That's among the reasons why, in the U.S., black smokers who prefer menthols are 12% less likely to quit smoking compared to non-menthol users, according to the results of a newly published study.