There have been many reports in the media about the effects of global warming on the Greenland ice-sheet, but there is still great uncertainty as to why there is an ice-sheet there at all.
Reporting today (28 August) in the journal Nature, scientists at the University of Bristol and the University of Leeds show that only changes in atmospheric carbon dioxide are able to explain the transition from the mostly ice-free Greenland of three million years ago, to the ice-covered Greenland of today.
(Santa Barbara, Calif.) – Two UC Santa Barbara astronomers are part of a team that has made a stunning discovery using the Hubble Space Telescope and Chandra X-ray Observatory, it was announced today by the National Aeronautics and Space Administration.
The capture of a collision of galaxy clusters was made by a team led by Marusa Bradac, a postdoctoral researcher and Hubble fellow in UCSB's Department of Physics. The international team also included Tommaso Treu, assistant professor of physics at UCSB.
Athens, Ga. – Most college students understand how they can prevent the transmission of HIV but are less knowledgeable about HIV testing, according to a new University of Georgia study.
Su-I Hou, associate professor in the UGA College of Public Health, surveyed more than 500 students and found that they scored higher on general questions related to HIV and AIDS (82 percent correct) than items specifically related to HIV testing (72 percent correct).
Despite investments, community goodwill and some good ideas, a vexing question remains in the age of school reform: Why has so much hope and effort led to disappointment?
Beginning in the late 1980s, the Chicago Public Schools, like many urban schools systems, launched a series of initiatives to reorganize schools, improve teaching and encourage parental participation. The changes in Chicago not always have met the expectations of proponents, wrote Charles Payne in his new book, "So Much Reform, So Little Change: The Persistence of Failure in Urban Schools".
University Park, PA – August 27, 2008 – A study recently published in the Journal of Social Issues illustrates how certain disadvantages experienced in adolescence, such as early pregnancy, dropping out of high school, being arrested, or going to an underprivileged school, contribute to lower voter turnout in young adulthood. In addition, the types of disadvantage vary across racial groups.
Lawrence, KS – August 27, 2008 – In Spring 2006, when three White Duke University lacrosse players were charged with raping a Black female student from nearby North Carolina Central University, Duke University officials framed the crisis in terms of institutional reputation rather than the rape issue at hand.
In a new study published in the journal Communication, Culture & Critique, Barbara Barnett of Kansas University reports on her qualitative textual analysis of public relations materials published by Duke from March 24, 2006 through June 18, 2007.
OAK BROOK, Ill. – August 27, 2008 – Researchers from St. Louis University School of Medicine in Missouri report that EUS and EUS-FNA is 99.1 percent accurate in diagnosing pancreatic neoplasms (abnormal growths or tumors) in patients who were referred for endoscopic ultrasound (EUS) because of CT and/or MRI reports of two common, though somewhat ambiguous findings - enlargement of head of pancreas (HOP) or dilation of the pancreatic duct (PD).
A powerful collision of galaxy clusters has been captured with NASA's Chandra X-ray Observatory and Hubble Space Telescope. Like its famous cousin, the so-called Bullet Cluster, this clash of clusters provides striking evidence for dark matter and insight into its properties.
Like the Bullet Cluster, this newly studied cluster, officially known as MACSJ0025.4-1222, shows a clear separation between dark and ordinary matter. This helps answer a crucial question about whether dark matter interacts with itself in ways other than via gravitational forces.
A 75-million-year-old fossil of a pregnant turtle and a nest of fossilized eggs that were discovered in the badlands of southeastern Alberta by scientists and staff from the University of Calgary and the Royal TyrrellMuseum of Palaeontology are yielding new ideas on the evolution of egg-laying and reproduction in turtles and tortoises.
It is the first time the fossil of a pregnant turtle has been found and the description of this discovery was published today in the British journal Biology Letters.
A double murder investigation that has remained unsolved for almost a decade could be provided new impetus following a forensic breakthrough at the University of Leicester.
A leading detective from America is visiting forensic scientists at the University of Leicester and Northamptonshire Police in a bid to shed new light on the investigation.
Contrary to stereotypes about sexual performance and masculinity, men interviewed in a large international study reported that being seen as honorable, self-reliant and respected was more important to their idea of masculinity than being seen as attractive, sexually active or successful with women.
The study published in the Journal of Sexual Medicine included interviews with more than 27,000 randomly selected men from eight countries (Germany, U.S., U.K., Spain, Brazil, Mexico, Italy and France), with about 16 percent of the men reporting erectile problems.
The Ecological Society of America today criticized the Bush administration's Aug. 15 proposal to reinterpret the Endangered Species Act, which would impose regulatory changes eliminating the requirement for federal projects to undergo independent scientific review. The proposal would allow federal agencies to decide for themselves whether their projects would harm endangered animals and plants.
Small scale fisheries produce as much annual catch for human consumption and use less than one-eighth the fuel as their industrial counterparts, but they are dealt a double-whammy by well-intentioned eco-labelling initiatives and ill-conceived fuel subsidies, according to a University of British Columbia study.
Small-scale fisheries are characterized as fishers operating in boats 15 metres or shorter.
(Kingston, ON) – A "basic science" breakthrough by Queen's University researchers into regulating a single enzyme may lead to new drug therapies that will help prevent heart attacks and strokes.
Led by professor of Pharmacology and Toxicology Donald Maurice, the study focuses on the effects of Viagra – the popular erectile dysfunction drug, which is also used to treat pulmonary hypertension.
The team's findings will be published on-line this week in the international journal Proceedings of the National Academy of Sciences (PNAS).
Amsterdam, 26 August 2008 - European Urology (www.europeanurology.com), the official journal of the European Association of Urology will be featuring the article 'Effect of nightly versus on-demand vardenafil on recovery of erectile function in men following bilateral nerve-sparing radical prostatectomy' by F.