For decades, scientists have been pushing toward the goal of creating artificial building blocks that can self-assemble in large numbers and reassemble to take on new tasks or to remedy defects. Researchers from the University of Southern Denmark have taken a step toward that.
"The potential of such new man-made systems is almost limitless, and many expect these novel materials to become the foundation of future technologies," says Dr. Maik Hadorn from Department of Chemistry and Applied Biosciences at ETH Zürich. "We used short DNA strands as smart glue to link preliminary stages of artificial cells (called artificial vesicles) to engineer novel tissue-like structures."
Do you prize your self on individual initiative or do you feel like the events in your life are outside your control and you just have to react? Do you think there needs to be more rules and regulations to manage things for you, or would you rather make it on your own?
An article in Health Psychology finds that how you view your life can affect your risk of mortality; people who believe they can achieve goals despite hardships are more likely to live longer and healthier lives, especially among those with less education.
If you want to get quality research, you want the best researchers, right?
Not necessarily. An advanced trend in science academia is social engineering, and that means building a team that isn't simply the best minds, but has a diverse mix of ethnicity and gender and culture that can also communicate well, are socially sensitive and emotionally engaged with each other.
Good luck quantifying how "emotionally engaged" you are at review time.
Population health has a lot of different factors - and infant mortality is one of them but it doesn't tell the entire story. Some in America laud Cuban health care, for example, but Cuba just had a cholera epidemic, something that doesn't happen in the United States.
And Cubans abort babies if there are signs of trouble, as do many industrialized nations, while America does not. Trying to save more babies is one reason why America ranks 27th among industrialized nations in infant mortality, and if you are in the business of criticizing American health care, you can stop thinking critically right there.
Estimates say there are over 3,000,000 registered freelancers worldwide, competing for everything from computer programming and web design to finance and engineering.
How can you make yourself more attractive to potential employers?
Does home field advantage matter? In baseball outfielders, the tricks and corners of a new baseball park might be meaningful but that effect should diminish over time. The Seattle Seahawks have a famously loud stadium and the team calls the audience "the twelfth man" but they didn't need it to rout the Denver Broncos in the Super Bowl.
There are no athletes in the Olympics who are from Sochi, yet psychologists believe that Russian athletes will have a psychological edge, even though Russia covers 6,600,000 million square miles, because they have a home field advantage.
While there is a glut of PhDs in academia, to an extent where some post-doc jobs don't even pay anything, the President's Council of Advisors on Science and Technology said in 2012 that America will need an additional 1,000,000 science, technology, engineering and mathematics (STEM) graduates in the United States over the next decade to meet corporate economic needs. In a speech last week he ridiculed art history majors. He loves scientists and wants more of them.
Organic farms support more biodiversity, supporting 34% more plant, insect and animal species than conventional farms, according to a new paper. For pollinators such as bees, the number of different species was 50% higher on organic farms, although the authors stress that the study only looked at 'species richness'.
A new survey finds that nearly half of HIV-infected teenagers and young adults don't seek treatment unless the disease advances, which can them at risk for dangerous infections and long-term complications. It is accepted that starting treatment as early as possible can go long way toward keeping the virus in check and prevent the cardiovascular, renal and neurological damage characteristic of poorly controlled HIV infection over time.
Those most likely to delay treatment until they had advanced infections were males, blacks and Hispanics, the paper in
At 78 percent among people aged 50 and over, South Africa has the highest rate of high blood pressure reported for any country in the world, at any time in history. And less than 10 percent of people are effectively controlling their condition with medication, according to an analysis of data from the Study on Global Ageing and Adult Health (SAGE) conducted by the World Health Organisation (WHO), which surveyed more than 35,000 people aged 50 and over in South Africa, China, Ghana, India, Mexico and Russia.
British people traveling abroad for medical treatment are often unaware of the potential health and financial consequences they could face - with sometimes catastrophic effects for individual patients.
More than 63,000 UK residents travel abroad for medical treatment each year but many are embarking on medical tourism without doing research about the risks involved. These include a lack of redress in many countries should things go wrong, and the costs of non-emergency care at home to rectify poor outcomes of treatments received overseas. Since the UK has government-controlled health care, individuals are personally liable for those costs.
Exposure to short wavelength, blue, light during the biological day directly and immediately improves alertness and performance.
In order to determine which wavelengths of light were most effective in warding off fatigue, the researchers teamed with George Brainard, PhD, a professor of neurology at Thomas Jefferson University, who developed the specialized light equipment used in the study. Researchers compared the effects of blue light with exposure to an equal amount of green light on alertness and performance in 16 study participants for 6.5 hours over a day. Participants then rated how sleepy they felt, had their reaction times measured and wore electrodes to assess changes in brain activity patterns during the light exposure.
Women who take nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, naproxen and diclofenac during pregnancy are not at increased risk of miscarriages.
NSAIDs are used by pregnant women in the first trimester to combat pain, fever and inflammation. Previous studies on whether they increase the risk of pregnancy loss have shown inconsistent results.
People with high blood pressure are familiar with ACE inhibitors, drugs that widen blood vessels by limiting activity of ACE, angiotensin-converting enzyme, a naturally occurring protein found in tissues throughout the body.
But high activity of ACE may sometimes be a good thing. A study conducted by Cedars-Sinai scientists found that genetically targeting certain immune blood cells to overproduce the enzyme broke down defective proteins in the brain associated with Alzheimer's disease and prevented cognitive decline in laboratory mice bred to model the disease.