Culture
The variety of finch species on the remote Galapagos Islands is the most prominent example for Charles Darwin's and Alfred R. Wallace's theory of evolution through natural selection. Galapagos finch species have developed distinct beak sizes and shapes and thereby have adapted to different food sources. This exemplifies how even closely related species can effectively make use of available resources, avoid competition and thus co-occur in the same habitat.
A bloom with great effect
WASHINGTON--Eating a big breakfast rather than a large dinner may prevent obesity and high blood sugar, according to new research published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.
Our body expends energy when we digest food for the absorption, digestion, transport and storage of nutrients. This process, known as diet-induced thermogenesis (DIT), is a measure of how well our metabolism is working, and can differ depending on mealtime.
Researchers from The University of Texas at Austin and the National Institutes of Health have made a critical breakthrough toward developing a vaccine for the 2019 novel coronavirus by creating the first 3D atomic scale map of the part of the virus that attaches to and infects human cells.
Mapping this part, called the spike protein, is an essential step so researchers around the world can develop vaccines and antiviral drugs to combat the virus. The paper is publishing Wednesday, Feb. 19 in the journal Science.
The neighborhood environment may positively or negatively influence one's ability to maintain cognitive function with age. Since older adults spend less time outside, the neighborhood environment increases in importance with age. Studies suggest physical aspects of the neighborhood such as the availability of sidewalks and parks, and more social and walking destinations, may be associated with better cognitive functioning. Beneficial neighborhood environments can provide spaces for exercise, mental stimulation, socializing and reducing stress.
Data and the economy stemming from them are the engine for the fourth industrial revolution. However, and according to Nikolaos Laoutaris, there is a very important leading player who currently receives absolutely nothing of the huge profits generated by the activity: the people who provide these data. Only in a very few cases do the humans producing data receive a measly compensation in kind for it: free online services.
Symbolic behaviour - such as language, account keeping, music, art, and narrative - constitutes a milestone in human cognitive evolution. But how, where and when did these complex practices evolve? This question is very challenging to address; human cognitive processes do not fossilize, making it very difficult to study the mental life of our Stone Age ancestors.
UCLA researchers who previously found that intravenous administration of fish oil can treat a rare but potentially deadly form of liver disease in children have now monitored levels of a small molecule at the center of the disorder to track treatment results. In a new study, they also have identified the way specific genes change after fish oil treatment is started.
Changes in DNA methylation patterns during a coral's lifetime can be passed down to their progeny. KAUST researchers believe they have found the first evidence of this change, and they suggest that the finding could help develop new strategies for coral conservation.
DNA methylation is the reversible attachment of a methyl group to a cytosine, one of the four nitrogenous bases that form the building blocks of our genomes. It is an epigenetic change that modifies how a gene is used.
HOUSTON - (Feb. 18, 2020) - Rice University engineers have one-upped their own technique to increase security for the "internet of things."
In truth, their upping is far greater than one.
Kaiyuan Yang, an assistant professor of electrical and computer engineering at Rice's Brown School of Engineering, and graduate student Yan He have introduced a technique to make security more than 14,000 times better than current state-of-the-art defenses while using far less energy.
Snakes live in diverse environments ranging from unbearably hot deserts to lush tropical forests, where they slither up trees, rocks and shrubbery every day. By studying how these serpents move, Johns Hopkins engineers have created a snake robot that can nimbly and stably climb large steps.
The team's new findings, published in Journal of Experimental Biology and Royal Society Open Science, advance the creation of search and rescue robots that can successfully navigate treacherous terrain.
A landmark Commission report convened by WHO, UNICEF and The Lancet has found the health and future of every child and adolescent worldwide is under immediate threat from ecological degradation, climate change and exploitative marketing practices that push fast food, sugary drinks, alcohol and tobacco at children.
Despite the benefits of well-child care visits (WCV), up to half of WCVs are missed. A team of researchers and pediatricians at Virginia Commonwealth University, University of Washington, and the University of Vermont sought to understand the challenges that prevent families from attending their child's scheduled appointment. They interviewed caregivers of children who had missed WCVs as well as family and pediatric physicians from a large safety-net health system in Richmond, Virginia.
Leading educators and clinical experts on transgender health care from Harvard, Fenway Health, and The Fenway Institute address access issues for transgender patients seeking care by providing a plan to integrate gender-affirming hormone therapy, surgical referrals, or wrap-around services into primary care. Such programs provide a much-needed service for this underserved but increasingly visible population that experiences significant health inequities. Authors provide a concise and practical guide to developing transgender health programs within existing primary care practices.
A new study from the University of Missouri concluded that a physician's decision not to intensify hypertension treatment is often a contextually appropriate choice. In two-thirds of cases where physicians did not change treatment for patients with hypertension, patients' blood pressure returned to normal in follow-up readings taken at home.