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Science News Archive 2006 - Page 21


Page 21 of 178

Children's sleep difficulties: Reports differ from children to parents

A new study published in Child Development found that children report more frequent sleep problems than their parents acknowledge. The researchers suggest that genetic and environmental influences play a role in most sleep problems. Parents may be unaware of night waking or delayed sleeping patterns, leading to overestimation by children.

SourceSociety for Research in Child Development·JournalChild Development·DateNov 14, 2006

UCLA study reports conflict of interest policies and practices of major journals

A new study published in the Journal of General Internal Medicine found that many major biomedical journals have inadequate conflict of interest policies and practices. The study revealed that less than half of these journals require policies for editors or peer-reviewers and that many do not disclose potential conflicts to readers.

SourceUniversity of California - Los Angeles·JournalJournal of General Internal Medicine·DateNov 14, 2006

Styles of conflict between parents have different implications for children and families

A new study examines how different conflict styles between parents affect children's mental health and adjustment. Different types of conflict may have distinct implications for mothers' and fathers' parenting duties, with fathers' emotional unavailability having a greater impact on children's psychological problems.

SourceSociety for Research in Child Development·JournalChild Development·DateNov 14, 2006

A medical micropump

University of Utah engineers invented a tiny, inexpensive micropump that can move chemicals, blood or other samples through a card-sized medical laboratory. The pump could aid development of lab-on-a-chip technology, which aims to reduce the price and time for lab tests.

SourceUniversity of Utah·JournalJournal of Micromechanics and Microengineering·DateNov 14, 2006

No benefit to mechanically opening arteries days after a heart attack

A new study published in the New England Journal of Medicine found that patients who undergo angioplasty to open their totally blocked coronary arteries days after a heart attack do not reduce their risk of having another heart attack, going into heart failure, or dying. The study, which involved over 2,166 patients on five continents,...

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalNew England Journal of Medicine·DateNov 14, 2006

Taking 'chips' to the next level of gene hunting

Researchers at Johns Hopkins Medicine have invented two new gene 'chip' technologies to identify disease-causing mutations in the human genome. The TIP-chip can locate transposable elements that disrupt normal gene function, while a second chip contains twice as much genetic information, enabling faster and cheaper experiments.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateNov 14, 2006

Global strategy for investigating Earth's geodynamics emerges from international collaboration

A global strategy for investigating Earth's geodynamics has been developed through international collaboration, aiming to advance understanding of continental rifting and break-up. The proposal includes sampling young, active rifting zones and ancient continental margins to investigate magma-forming processes associated with rifting.

Chocolate 'offenders' teach science a sweet lesson

A study found that eating small amounts of dark chocolate daily can decrease the tendency of platelets to clot in narrow blood vessels, reducing heart attack risk. Researchers analyzed blood samples from 139 'chocolate offenders' who were excluded from a larger aspirin study and found them to be less reactive than those who abstained.

The Milky Way shaped life on Earth

Research reveals a link between cosmic rays and fluctuations in Earth's biosphere productivity, with star formation rates influencing cloud cover and climate. Cosmic radiation affected biological productivity through its influence on cloud formation, leading to higher productivity during cold periods.

SourceDanish National Space Center·JournalAstronomische Nachrichten·DateNov 14, 2006

Saving space

A recent study found that climate change impacts mussels beyond their northern and southern range limits, with temperature variations affecting thermal stress in the rocky intertidal zone. The research suggests conserving areas based on traditional methods may not be enough to protect mussel populations.

SourceEcological Society of America·JournalEcological Monographs·DateNov 14, 2006