It looks like a Slinky suspended in motion. Yet this photonics advancement– called a metamaterial hyperlens– doesn’t climb down stairs. Instead, it improves our ability to see tiny objects. The hyperlens may someday help detect some of the most lethal forms of cancer.
Bacteria resistant to antibiotics are on the rise. There are different explanations for how...
About 90 percent of advanced prostate cancers have particular genetic mutations that can provide...
Play a flute in Carnegie Hall, and the tone will resonate and fill the space. Play in in the Grand Canyon, and the sound will crash against the rock walls. The disparity is clear— to the modern listener, the instrument belongs in an auditorium. But, in the past, people sought echoes. The response of audiences and performers to acoustic characteristics is a function of their worldview, and it is as fluid as the environment they inhabit.
Researchers have shown that they can use a microfluidic cell-squeezing device to introduce specific antigens inside the immune system’s B cells, providing a new approach to developing and implementing antigen-presenting cell vaccines.
Sir Arthur Conan Doyle, born May 22, 1859, was the Scottish writer behind Sherlock Holmes. He was also a doctor who received his medical degree from the University of Edinburgh.
Although eating high-protein, afternoon snacks can aid appetite control in adults, little information exists to guide parents on what types of snacks might benefit their adolescent children. Now, researchers have found that afternoon snacking, particularly on high-protein soy foods, reduces afternoon appetite, delays subsequent eating and reduces unhealthy evening snacking in teenagers.
New research shows that infections can impair your cognitive ability measured on an IQ scale. The study is the largest of its kind to date, and it shows a clear correlation between infection levels and impaired cognition.
Contrary to public perception and horrific cases that make headlines, serious mental problems are declining among the nation's youth, and there has been a big rise in how many are getting help, a new study finds. The study is mostly good news: more children and teens are taking mental health medicines than ever before, but more also are getting therapy, not just pills.
Chamomile is one of the oldest, most-widely used and well-documented medicinal plants in the world and has been recommended for a variety of healing applications. Now, research has found that drinking chamomile tea was associated with a decreased risk of death from all causes in Mexican-American women over 65.
An Oregon doctor is researching a non-surgical, permanent contraceptive method for women in developing countries, with some funding from the Gates Foundation. The work is being done with an eye toward curbing overpopulation, and to improve quality of life in impoverished countries, they said.
Typically, when someone chooses to donate their body to science, it’s as a cadaver. While cadavers are great learning tools, there’s something to be said for having access to living, breathing humans. Now, a group of scientists has discovered a way to circumvent the “you must be dead first” rule.
Robert A. Good, an American doctor born May 21, 1922, was the first person to successfully transplant bone marrow between people who weren’t identical twins. He is considered to be the founder of immunology in its present form.
Laboratory Equipment’s scientist of the week is Juan Carlos Izpisua Belmonte from the Salk Institute for Biological Studies. He and a team studying a rare premature aging disease, Werner syndrome, have found what they believe to be one of the underlying causes of normal human aging.
A new study in animals suggests that skipping meals sets off a series of metabolic miscues that can result in abdominal weight gain. In the study, mice that ate all of their food as a single meal and fasted the rest of the day developed insulin resistance in their livers. When the liver doesn’t respond to insulin signals telling it to stop producing glucose, that extra sugar in the blood is stored as fat.
A new medical device that will improve the way infants with jaundice are treated is one step closer to market. The startup, TheraB Medical Products Inc., was developed by university students with the help of $150,000 in funding from Quantum Medical Concepts. TheraB has created the SnugLit Portable Phototherapy Blanket, a wearable swaddle that treats newborn jaundice.
One of the great tussles of science– whether our health is governed by nature or nurture– has been settled, and it is effectively a draw. A review studied almost every twin study across the world from the past 50 years, involving more than 14.5 million twin pairs. The study revealed, on average, the variation for human traits and diseases is 49 percent genetic, and 51 percent because of environmental factors and/or measurement errors.
As social creatures, we tend to mimic each other’s posture, laughter and other behaviors, including how we speak. Now, a new study shows that people with similar views tend to more closely mirror, or align, each other’s speech patterns. In addition, people who are better at compromising align more closely.
Stuttering may be more than a speech problem. For the first time, researchers have found that children who stutter have difficulty perceiving a beat in music-like rhythms, which could account for their halting speech patterns.
With the help of a computer program called "Rosetta," researchers have "redesigned" an antibody that has increased potency and can neutralize more strains of the AIDS-causing human immunodeficiency virus (HIV) than can any known natural antibody. The find suggests that computer-redesigned antibodies may speed the search for an effective therapy or vaccine for a virus that so far has eluded all attempts to eradicate it.
A class of FDA-approved cancer drugs may be able to prevent problems with brain cell development associated with disorders including Down syndrome and Fragile X syndrome, researchers have found. They showed that giving the leukemia drugs nilotinib or bafetinib to fly larvae with the equivalent of Fragile X prevented the wild overgrowth of neuron endings associated with the disorder.
Even though much of the population in developing countries is involved in agriculture, food security is virtually out of reach. Often the only resort is to purchase a cow, buffalo or sheep to provide a steady supply of fresh milk, a nutritious staple of a daily diet. But how to preserve it safely? Research has found that short pulsed electric fields can be used to kill milk-contaminating bacteria.
Four sham cancer charities were charged with bilking more than $187 million from consumers by telling donors the funds would help cancer patients, including children– but then pocketed the money, federal authorities announced.
In the 14th century, Europe was devastated by the Black Death, a scourge spread by rodent populations. Now, a group of 21st century researchers are trying to forecast where rats and mice and other critters are most likely to spread viruses, bacteria, fungi and other illnesses communicable to humans.
Biologists have long puzzled about how evolutionary selection, known for its ruthless requirement for efficiency, allows the existence of males— when in so many species their only contribution to reproduction are spermatozoa. Now, research has found, when males compete and females choose over reproduction, it improves population health and protects against extinction, even in the face of genetic stress from high levels of inbreeding.
The combination of global warming and shifting population means that by mid-century, there will be a huge increase in the number of Americans sweating through days that are extremely hot. People are migrating into areas— especially in the South— where the heat is likely to increase more, according to a study that highlighted the places where the double whammy looks to be the biggest.
Researchers have successfully recreated a critical juvenile period in the brains of adult mice. They reactivated brain plasticity– the rapid and robust changes in neural pathways and synapses as a result of learning and experience.
Nanoengineers have developed a gel filled with toxin-absorbing nanosponges that could lead to an effective treatment for skin and wound infections caused by MRSA, an antibiotic-resistant bacteria. This "nanosponge-hydrogel" minimized the growth of skin lesions on mice infected with MRSA— without the use of antibiotics.
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