Culture | Page 2854 | Science Codex

A million people suffer from tinnitus -- in province of Quebec alone

Université de Montréal Professor Sylvie Hébert is conducting a study exploring the root causes of tinnitus, a condition that creates the perception of sound in the absence of external stimulation. Tinnitus affects 20 percent of Quebecers 55 and older in Quebec, which represents one million people.

"The auditory sensations sound like buzzing or whistling in one or both ears," says Professor Hébert of the Université de Montréal's Faculty of Medicine School of Speech Therapy and Audiology and researcher at both the Institut universitaire de gériatrie de Montréal and the BRAMS.

Fire out of Africa: A key to the migration of prehistoric man

Jerusalem, October 26, 2008 – The ability to make fire millennia ago was likely a key factor in the migration of prehistoric hominids from Africa into Eurasia, a researcher at the Hebrew University of Jerusalem's Institute of Archaeology believes on the basis of findings at the Gesher Benot Ya'aqov archaeological site in Israel.

ORNL scientists develop high-performance steel for possible use in ITER fusion project

OAK RIDGE, Tenn., Oct. 24, 2008 – Researchers at Oak Ridge National Laboratory and the U.S. ITER Project Office, which is housed at ORNL, have developed a new cast stainless steel that is 70 percent stronger than comparable steels and is being evaluated for use in the huge shield modules required by the ITER fusion device.

Study examines repeated exposure to HIV in treatment-suppressed HIV patients

A new study looking at unprotected intercourse within gay couples when each partner has established HIV-infection found a correlation between anti-HIV immune response and sexual activity.

Study results showed that individuals who had regular unprotected receptive anal intercourse with partners with significant levels of HIV in their blood showed a stronger anti-HIV immune response. In addition, the magnitude of anti-HIV specific immune response correlated with their exposure to HIV through sex.

Potent greenhouse gas more prevalent in atmosphere than previously assumed

A powerful greenhouse gas is at least four times more prevalent in the atmosphere than previously estimated, according to a team of researchers at Scripps Institution of Oceanography at UC San Diego.

Using new analytical techniques, a team led by Scripps geochemistry professor Ray Weiss made the first atmospheric measurements of nitrogen trifluoride (NF3), which is thousands of times more effective at warming the atmosphere than an equal mass of carbon dioxide.

Spirituality protects against depression better than church attendance

Those who worship a higher power often do so in different ways. Whether they are active in their religious community, or prefer to simply pray or meditate, new research out of Temple University suggests that a person's religiousness – also called religiosity – can offer insight into their risk for depression.

Nearly half of US states fail on emergency plan communication, new study shows

FAIRFAX, Va., October 23, 2008—Seven years after Sept. 11, and in the wake of many major natural disasters such as forest fires, hurricanes and flooding, nearly half of U.S. states either have no state-level emergency plan or do not provide it readily to the public, reveals a new study by George Mason University Communication Professor Carl Botan.

The sociological 'contexts' of politics in 2008

The high drama of the 2008 presidential election has provided ample fodder for sociological analysis in the fall issue of the American Sociological Association's Contexts magazine, which features politically themed feature articles from leading sociologists who are available to comment on election-related topics.

Contact ASA Media Relations Officer Jackie Cooper (jcooper@asanet.org, 202-247-9871) for pre-release copies of the Contexts articles summarized below, or reach the authors directly for interviews.

Global science community affirms its responsibilities in science and its role in society

Maputo, Mozambique—in the light of recent high profile cases of scientific misconduct, the General Assembly of the International Council for Science (ICSU) today reaffirmed the universal values that should guide the conduct of science. The Assembly also explicitly recognised the key social responsibilities of the scientific community as laid out in a new booklet, which will be made widely available to scientists across the world.

Leeds engineers' crucial role in land speed record attempt

Engineers from University of Leeds spinout company Instrumentel Ltd have played a crucial role in the next attempt to break the land speed record, announced today [23 October].

The Bloodhound project, launched in London by science minister Lord Drayson, is fronted by Richard Noble OBE and Andy Green, the former and current land speed record holders.

Reducing CEOs' option-based compensation decreases risky investments

COLUMBIA, Mo. – Since the recent bailout on Wall Street, the public has started to heavily scrutinize firms' large executive pay packages. This week, John White, director of the Securities and Exchange Commission's Division of Corporation Finance, urged all U.S. companies to consider limiting compensation packages that reward excessive risk-taking by executives.

Greenhouse gas auction revenues can help cut Md. electric use significantly, says study

COLLEGE PARK, Md. – Maryland officials can reduce electricity use in the state significantly by investing revenues from the Regional Greenhouse Gas Initiative (RGGI) cap-and-trade auctions in energy efficiency programs, says a new study from a University of Maryland-led research team. It adds that neighboring states might benefit as well.

Scientists unwrap the elements of life

Researchers at Newcastle University have taken a step forward in our understanding of how the fundamental building blocks of life are put together.

In a paper published today in Nature, the team led by Professor Nigel Robinson have revealed a mechanism that ensures the right metal goes to the right protein. Proteins are essential and involved in just about every process in living cells.

Biologists discover gene behind 'plant sex mystery'

An enigma – unique to flowering plants – has been solved by researchers from the University of Leicester (UK) and POSTECH, South Korea.

The discovery is reported in the journal Nature on 23 October 2008.

Scientists already knew that flowering plants, unlike animals require not one, but two sperm cells for successful fertilisation.

Yale journal finds nanomaterials may have large environmental footprint

New Haven, Conn.—Environmental gains derived from the use of nanomaterials may be offset in part by the process used to manufacture them, according to research published in a special issue of the Journal of Industrial Ecology.