Philadelphia, PA, September 24, 2012 – PSA screening has resulted in improved prostate cancer survival, but the high rate of diagnosis and treatment side effects raise concerns about overtreatment. In the quest to prevent overtreatment, "active surveillance" has emerged as a plausible option, encouraged for men whose tumors may not need immediate treatment and may never progress to more serious illness. Appropriate criteria for selecting patients for active surveillance are continuously debated.
Tech
Think of the poor hamster on the treadmill. Steadily picking up speed and caught up by the momentum, unable to stop until it is overwhelmed and sent tumbling, crashing out of control inside the spinning wheel.
That's the analogy John Yackel, head of the Department of Geography, makes when he considers the annual summer ice melt in the Arctic, which he's been closely monitoring for the past 15 years, documenting the ice cover as it has steadily shrunk in the wake of Arctic and global warming.
This press release is available in Spanish.
Getting a head start on stopping soil copper buildup will now be a bit easier, thanks to studies by U.S. Department of Agriculture (USDA) scientists. This research could help Pacific Northwest farmers develop long-term irrigation management strategies to protect crops from potentially dangerous soil copper levels.
Going forward, the researchers would like to increase the field of view of the device so that they can image the full lesion along with its border to healthy tissue. They are also working on speeding up the post-processing of the optical signal to enable live vasculature display, and improving the portability of the system, which currently occupies an area about half the size of an office desk. "We believe that in the future our method will help to simplify non-invasive dermatological in vivo diagnostics and allow for in-depth treatment monitoring," says Blatter.
WASHINGTON--Refueling U.S. Navy vessels, at sea and underway, is a costly endeavor in terms of logistics, time, fiscal constraints and threats to national security and sailors at sea.
In Fiscal Year 2011, the U.S. Navy Military Sea Lift Command, the primary supplier of fuel and oil to the U.S. Navy fleet, delivered nearly 600 million gallons of fuel to Navy vessels underway, operating 15 fleet replenishment oilers around the globe.
From Seawater to CO2
Alexandria, VA – Diesel-soaked clothing, 90-hour work weeks, and the constant groaning of a multimillion-dollar oil rig towering overhead: Welcome to life in Williston, N.D., home of the United States' latest oil boom. In this month's issue of EARTH Magazine, R. Tyler Powers, a young geologist thrust into the middle of the new boomtown, offers his perspective on what life is like today in the new Wild West.
Europe accounted for two thirds of the world-wide newly installed photovoltaic (PV) capacity in 2011, with 18.5 GW. Its overall PV capacity totalled 52 GW. The yearly electricity produced by PV could power a country with the electricity demand of Austria, which corresponds to 2% of the EU's electricity needs. These are some of the highlights of the 2012 Photovoltaics Status Report published today by the European Commission's Joint Research Centre.
The study summarises and evaluates the current activities regarding manufacturing, policies and market implementation world-wide.
Susannah Briskin, MD, a pediatric sports medicine specialist with University Hospitals Rainbow Babies & Children's Hospital, is the co-author of an updated report from the American Academy of Pediatrics (AAP) strongly cautioning against home trampolines. The report provides updated data on the number of and types of injuries caused by trampolines.
The new report's key recommendation against recreational trampoline use remains consistent with AAP's previous policy statement from 1999 and reaffirmed in 2006.
Susannah Briskin, MD, a pediatric sports medicine specialist with University Hospitals Rainbow Babies & Children's Hospital, is the co-author of an updated report from the American Academy of Pediatrics (AAP) strongly cautioning against home trampolines. The report provides updated data on the number of and types of injuries caused by trampolines.
The new report's key recommendation against recreational trampoline use remains consistent with AAP's previous policy statement from 1999 and reaffirmed in 2006.
Scientists at CRANN, the Science Foundation Ireland-funded nanoscience institute based at Trinity College Dublin, have partnered with world-leading brewing company SABMiller on a project to increase the shelf life of bottled beer in plastic bottles. The new deal will see SABMiller invest in the project over a two year period.
Volcanic activity on and around La Réunion is driven by a localized upwelling of hot buoyant magma. Unlike most magma sources, this is not located on the boundary between two tectonic plates, and rises from much greater depths. It is a so-called hotspot, and has left behind on the overlying mobile crust a track of volcanic activity that stretches 5500 km northwards to the Deccan Plateau in India. Some 65 million years ago, in a process that had a massive impact on world climate, the Deccan area was covered with enormous amounts of lava as the Indian Plate passed over the hotspot.
Fabricating precise biomolecular structures at extremely small scales is critical to the progress of nanotechnology and related fields.
Global climate change means that recently discovered ancient forests in Canada's extreme north could one day return, according to Alexandre Guertin-Pasquier of the University of Montreal's Department of Geography, who is presenting his findings at the Canadian Paleontology Conference in Toronto today. "According to the data model, climate conditions on Bylot Island will be able to support the kinds of trees we find in the fossilized forest that currently exist there, such as willow, pine and spruce.
This release is available in Spanish.
Tried-and-true techniques could help optimize oilseed yield for biodiesel production, according to studies conducted by U.S. Department of Agriculture (USDA) scientists.
If two birds meet deep in the forest, does anybody hear? Until now, nobody did, unless an intrepid biologist was hiding underneath a bush and watching their behavior, or the birds happened to meet near a research monitoring station. But an electronic tag designed at the University of Washington can for the first time see when birds meet in the wild.