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Science News Archive 2009 - Page 40


Page 40 of 277

Paleoecologists offer new insight into how climate change will affect organisms

A team of ecologists highlights the importance of combining environmental conditions with climate models to predict species distribution. Paleoecological studies show that past climate variability has affected tree species distributions, and future changes in climate variability need to be considered when predicting species responses.

SourceLehigh University·JournalProceedings of the National Academy of Sciences·DateNov 4, 2009

Breeding better broccoli

Research reveals that broccoli contains abundant levels of the carotenoid lutein, an antioxidant linked to improved eye health and reduced risk of cancer. Lutein levels are influenced by genetics, not environment, making it a promising target for breeding programs aimed at producing higher-lutein broccoli varieties.

New scientific study indicates that eating quickly is associated with overeating

A recent study published in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that eating quickly can lead to overeating by curbing the release of hormones that signal fullness. Researchers discovered that subjects who took their time consuming a meal had higher concentrations of appetite-regulating hormones,...

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateNov 4, 2009

Survival of the healthiest

A new therapeutic approach targets proliferation of cancer cells without affecting normal cells, showing promise for selective eradication of human cancers. Researchers developed a phenanthridine derived polyADP-ribose polymerase (PARP) inhibitor that efficiently kills breast cancer cells while leaving healthy cells untouched.

SourceBMC (BioMed Central)·JournalBreast Cancer Research·DateNov 4, 2009

Orphan army ants join nearby colonies

A team of researchers from Harvard University discovered that army ant colonies can be cooperative instead of combative when they lose their queen. The lost workers are absorbed by neighboring colonies and integrate quickly, often losing their distinct colony odor within days.

Does race, income predict prostate cancer outcome?

A new study by Henry Ford Hospital found that a patient's socioeconomic status has no effect on their outcome following curative radiation therapy for prostate cancer. The study analyzed data from 788 patients and found that all patients, regardless of race or income, had similar survival rates and biochemical control rates.

'Genome 10K' proposal aims to sequence 10,000 vertebrates

A new initiative aims to sequence the genomes of 10,000 vertebrates, including whales, dolphins, and porpoises, to gain better understanding of species diversity, evolution, and conservation. The project, called Genome 10K, has the potential to revolutionize our knowledge of cetaceans and inform effective conservation strategies.

SourceOregon State University·JournalJournal of Heredity·DateNov 4, 2009

Digital divide: Psychologists suggest ways to include the aging population in the tech revolution

Aging population faces limitations with technology due to age-related changes such as vision and hearing difficulties, motor control issues, and cognitive decline. Psychologists propose web design improvements like larger fonts, navigation aids, and instructional support to alleviate stress and improve usability.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateNov 4, 2009