The first study to compare the performance of different types of green roofs has been completed by The Lady Bird Johnson Wildflower Center at The University of Texas at Austin and suggests that buyers shouldn't assume these roofs are created equal.
Culture
In the waters surrounding Woods Hole, Massachusetts, the warty comb jelly, Mnemiopsis ledyi, lives out its days, bumping against eel grass and collecting small crustaceans with its sticky tentacles. The delicate creature, which resembles a small jellyfish without the stinger, is just another member of the food web here on the Western Atlantic coast.
CLEVELAND--Spouses of husbands and wives with dementia pay an emotional toll as they care for their ailing spouse. This has prompted a call for new interventions and strategies to assist caregivers in coping with the demands of this difficult time, according to a study from Case Western Reserve University's Mandel School of Applied Social Sciences.
AIDS experts at Johns Hopkins say they have compelling evidence that some people with HIV who for years and even decades show extremely low levels of the virus in their blood never progress to full-blown AIDS and remain symptom free even without treatment, probably do so because of the strength of their immune systems, not any defects in the strain of HIV that infected them in the first place.
As the grouse shooting season gets under way, two scientists involved in high-profile studies of hen harriers and red grouse at Langholm Moor in Scotland have called for field trials of a "ceiling" on harrier numbers in an attempt to end the long running conflict between conservationists and grouse managers.
If you're a fan of habañero salsa or like to order Thai food spiced to five stars, you owe a lot to bugs, both the crawling kind and ones you can see only with a microscope. New research shows they are the ones responsible for the heat in chili peppers.
The spiciness is a defense mechanism that some peppers develop to suppress a microbial fungus that invades through punctures made in the outer skin by insects. The fungus, from a large genus called Fusarium, destroys the plant's seeds before they can be eaten by birds and widely distributed.
CHAPEL HILL – A new report on severe sporting injuries among high school and college athletes shows cheerleading appears to account for a larger proportion of all such injuries than previously thought.
The latest annual report from the University of North Carolina at Chapel Hill-based National Center for Catastrophic Sports Injury Research shows high school cheerleading accounted for 65.1 percent of all catastrophic sports injuries among high school females over the past 25 years.
From the 10 to 15 August, the casino on the Westend Campus will become the worldwide centre for diamond researchers from industry and academia. During this time, the mineralogists from the GeoZentrum of the Goethe University will host the 9th International Kimberlite Conference, which is the most important meeting related to this unique gemstone. Kimberlite Conferences have been held in a 4‐5 year cycle for more than 30 years, usually in a diamond‐producing country.
A new simulation method has made it possible to predict in record time when and where heavily stressed engine components are likely to fail. Car manufacturers can thereby significantly reduce the time for developing new engine components.
If wind energy converters are located anywhere near a residential area, they must never become too noisy even in high winds. Most such power units try to go easy on their neighbors' ears, but even the most careful design cannot prevent noise from arising at times: One source is the motion of the rotor blades, another is the cogwheels that produce vibrations in the gearbox. These are relayed to the tower of the wind turbine, where they are emitted across a wide area – and what the residents hear is a humming noise.
Students from OSU's Radiation Physics Laboratory built and successfully launched a cosmic radiation detector this summer that reached the edge of outer space. Carried by a helium-filled balloon 12 inches in diameter, the detector flew for more than two hours and reached 104,000 feet in altitude. The device recorded radiation levels at the varying altitudes – information that will be used by NASA to develop instrumentation for space flight.
Ruins of a Roman temple from the second century CE have recently been unearthed in the Zippori National Park in Israel. Above the temple are foundations of a church from the Byzantine period. The excavations, which were undertaken by the Noam Shudofsky Zippori Expedition led by of Prof. Zeev Weiss of the Institute of Archaeology at the Hebrew University of Jerusalem, shed light on the multi-cultural society of ancient Zippori.
The Carbon Disclosure Project (CDP) and ICLEI-Local Governments forSustainability are joining forces with some of the United States' largestcities to help them voluntarily report their greenhouse gas emissions andother climate change-relevant data.
Hundreds of insect species live mainly underwater, but how do they breathe? University of Alberta researcher Morris Flynn did a study to find out how these species are able to remain underwater without drowning.
Trying to appear moderate is not always the best strategy for capturing votes during an election, reveals a new study. Extreme positions can build trust among an electorate, who value ideological commitment in times of uncertainty.
"The current political advantage of the Republican Party stems from the ability of its candidates to develop 'signature ideas.' This strategy is rewarded even when the electorate has ideological reservations," says University of Southern California economist Juan Carrillo, adding that this poses a challenge for the Democrats.