Composed of diverse elements, mostly of plastic, with little metal used, improvised explosive devices are very difficult to detect. In cooperation with two colombian universities, scientists at EPFL’s Electromagnetic Compatibility Laboratory have fo…
One of the most important genes in the human genome is called p53 and its function is to suppress tumours, according to Roger Leng, a researcher in the Faculty of Medicine & Dentistry. Leng has discovered the mechanism by which p53 is inactivated in…
Drug- and explosives-sniffing dog/handler teams’ performance is affected by human handlers’ beliefs, possibly in response to subtle, unintentional handler cues, a study by researchers at UC Davis has found.
The study, published in the January issu…
If you think histamines are your nemesis during allergy season, here’s something that might change your perspective. New research published in the Journal of Leukocyte Biology (http://www.jleukbio.org) shows that histamine could be an important mole…
People in a jetliner act and feel one way when crammed together like sardines in a can. But they have quite a different mindset when the middle seat is empty and they have more personal space. Scientists are pursuing a remarkable parallel that exist…
Two new studies have determined that everolimus-eluting stent (EES) implantation reduced the incidence of restenosis and repeat revascularization in patients with calcified culprit lesions, and had fewer clinical events. Results show the rate of maj…
Researchers at Johns Hopkins have shown that using specific drugs can protect nerve cells in mice from the lethal effects of Parkinson’s disease. The researchers’ findings are published in the August 22 issue of Nature Medicine.
The newly discov…
Researchers say they have discovered a new target on the HIV molecule that could potentially lead to a new class of anti-viral drugs to fight the virus that causes AIDS. “The greatest challenge in treating HIV today is drug resistance brought on when the virus mutates and renders existing drugs ineffective at stopping viral replication,” said a lead researcher. “Our research has led to the identification of a new class of compounds that inhibit a novel target in HIV. These compounds disrupt the assembly of the HIV-1 capsid protein, which is a vital step in changing immature, non-infectious HIV into its mature, infectious form.”
A better understanding of the new “smelling” capabilities of human sperm cells may lead to advances in contraception and fertility treatments. A new study identifies a novel odorant receptor on human sperm and shows how activating this receptor causes the sperm to make a beeline for a target. In a study appearing in the 28 March issue of the journal, Science, German and U.S. researchers report that the binding of certain compounds to the new odorant receptor (hOR17-4) found on the surface of sperm cells, triggers a series of physiological events that may result in the directed movement of human sperm. In this chemosensory response, the sperm cells travel toward elevated concentrations of a sperm-attracting substance called “bourgeonal.”
Cruise missiles have proven themselves in combat many times since the Gulf War, but the Navy would like to drive their cost down–the ones currently in service cost hundreds of thousands of dollars. The Office of Naval Research (ONR) has a program to use commercially-based equipment to build a “cruise-like” missile with good performance at a price ten times less than the norm. The new missile is called, appropriately, the Affordable Weapon.
Scientists at Emory University School of Medicine have identified a signaling pathway that is turned on when benign moles turn into early-stage malignant melanoma. The pathway could provide a new target for the diagnosis, prevention and treatment of the most lethal form of skin cancer. The research was reported in the December issue of the journal Clinical Cancer Research.