Famed for its historic sites, its double-decker buses and its West End shows, London now has a more dubious distinction: Britain's public health agency says it has become the tuberculosis capital of Western Europe. In response, health officials are taking to the streets in an effort to stop the spread of the infectious lung disease.
Doctors now have convincing evidence that they put HIV into remission, hopefully for good, in a Mississippi baby born with the AIDS virus—a medical first that is prompting a new look at how hard and fast such cases should be treated. The case was reported earlier this year but some doctors were skeptical that the baby was really infected rather than testing positive because of exposure to virus in the mom's blood.
The latest space tourism venture depends more on hot air than rocket science. World View Enterprises announced plans Tuesday to send people up in a capsule, lifted 19 miles by a high-altitude balloon. While it's not quite space, the plan requires approval from the Federal Aviation Administration, which oversees commercial space.
Researchers have recently provided the first evidence ever that it is possible to generate a magnetic field by using heat instead of electricity. The phenomenon is referred to as the Magnetic Seebeck effect or “thermomagnetism”.
Two researchers from the Institute for Technology in Architecture in Switzerland have created an immersive space from artificial sandstone with a 3D printer. The design, which cannot be drawn by hand or generated by software such as CAD, resembles a gothic cathedral’s façade and is currently on display in Orléans, France.
Everyone grows older, but scientists don't really understand why. Now a Univ. of California, Los Angeles study has uncovered a biological clock embedded in our genomes that may shed light on why our bodies age and how we can slow the process.
In a biological quirk that promises to provide researchers with a new approach for studying and potentially treating Fragile X syndrome, scientists at UMass Medical School have shown that knocking out a gene important for messenger RNA translation in neurons restores memory deficits and reduces behavioral symptoms in a mouse model of a prevalent human neurological disease.
A British scientist says he may have solved the mystery of the Abominable Snowman, the elusive ape-like creature of the Himalayas. DNA analysis conducted by Oxford Univ. genetics professor Bryan Sykes suggests the creature, also known as the Yeti, is the descendant of an ancient polar bear.
In two parallel projects, researchers at the Wyss Institute for Biologically Inspired Engineering have created new genomes inside the bacterium E. coli in ways that could open new possibilities for increasing flexibility, productivity and safety in biotechnology. In the first project, researchers created a novel genome, the first-ever entirely genomically recoded organism. They then greatly expanded genetic changes in the second project.
Around 3% of all plants use an advanced form of photosynthesis, which allows them to capture more carbon dioxide, use less water, and grow more rapidly. This phenomenon had been a mystery, but researchers have used a mathematical analysis to uncover a number of tiny changes in the plants' physiology that allow them to grow more quickly, using a third as much water as other plants and capturing around 13 times more carbon dioxide.
Spraying a plant hormone on broccoli—already one of the planet’s most nutritious foods—boosts its cancer-fighting potential, and researchers say they have new insights on how that works. They published their findings, which could help scientists build an even better, more healthful broccoli.
During open surgery, doctors rely on their sense of touch to identify anatomical structures: a procedure they call palpation. But this practice is not possible in minimally invasive surgery where surgeons work with small, specialized tools and miniature cameras. A small, wireless capsule has been developed that can restore the sense of touch that surgeons are losing as they shift increasingly from open to minimally invasive surgery.
Researchers have developed software that allows them to map unknown environments based on the movement of a swarm of insect cyborgs, or “biobots.” The software would also allow public safety officials to determine the location of radioactive or chemical threats, if the biobots have been equipped with the relevant sensors.
People often customize the size and shape of materials like textiles and wood without turning to specialists like tailors or carpenters. In the future this should be possible with electronics, according to computer scientists who have developed a printable multi-touch sensor whose shape and size can be altered by anybody.
About a dozen years ago, scientists discovered that a hormone called ghrelin enhances appetite. Dubbed the “hunger hormone,” ghrelin was quickly targeted by drug companies seeking treatments for obesity—none of which have yet panned out. Neuroscientists have now discovered that ghrelin’s role goes far beyond controlling hunger.
Rubber can be extracted from the juice of the dandelion, but transitioning this technology to the industrial setting has been a challenge. The Fraunhofer Institute in Germany has joined with Continental tire company to build the first-ever pilot system to extract vast quantities of dandelion rubber for making tires
Renewable sources like sun and wind aren’t always productive. But waves in the ocean are never still, prompting Georgia Institute of Technology scientists to find a way to produce energy by making use of contact electrification between a patterned plastic nanoarray and water. They have introduced an inexpensive and simple prototype of a triboelectric nanogenerator that could be used to produce energy and as a chemical or temperature sensor.
A group of physicists from Canada have been growing their own icicles in a laboratory in the hope of solving a mystery that has, up until now, continued to puzzle scientists. The presence of characteristic ripples along the surface of icicles, which remarkably have the same wavelength no matter how big the icicle or where in the world it grows, have led to several studies examining exactly how the ripples form.
You might not think to look to a urine test to diagnose an eye disease. But a new Duke Univ. study says it can link what is in a patient's urine to gene mutations that cause retinitis pigmentosa, or RP, an inherited, degenerative disease that results in severe vision impairment and often blindness.
It was a result so unexpected that Massachusetts Institute of Technology researchers initially thought it must be a mistake: Under certain conditions, putting a cracked piece of metal under tension has the reverse effect, causing the crack to close and its edges to fuse together. The surprising finding could lead to self-healing materials that repair incipient damage before it has a chance to spread.
Blowing bubbles in the backyard is one thing and quite another when searching for oil. That distinction is at the root of new research by Rice Univ. scientists who describe in greater detail than ever precisely how those bubbles form, evolve and act. The research describes two previously unknown ways that bubbles form in foam.
A Binghamton Univ. scientist and his international colleagues report on the successful synthesis of the first superconductor designed entirely on the computer. The synthesized material, a novel iron tetraboride compound, is made out of two common elements, has a brand-new crystal structure and exhibits an unexpected type of superconductivity for a material that contains iron, just as predicted in the original computational study.
Non-coding RNAs constitute the “dark matter of the genome”, as they are abundant but their function is largely unknown. Researchers in Canada have discovered how these RNA direct telomerase, a molecule essential for cancer development, toward structures on our genome called telomeres in order to maintain its integrity and in turn, the integrity of the genome.
Previous studies had established an association between the activity of certain types of neurons and the phase of sleep known as rapid eye movement (REM). Scientists have now found the source of this causal relationship and have used optogenetics techniques to induce and modulate REM sleep in mice.
Hold your nose and don't spit out your coffee: Doctors have found a way to put healthy people's poop into pills that can cure serious gut infections—a less yucky way to do "fecal transplants." Canadian researchers tried this on 27 patients and cured them all after strong antibiotics failed to help.