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Science News Archive September 2011 - Page 18


Page 18 of 29

It's all about autonomy: Consumers react negatively when prompted to think about money

A new study found that money reminders lead consumers to react against people who influence their decisions, boosting the importance of autonomy. Participants in three studies reacted oppositely when reminded of money compared to those not reminded, with money-reminded consumers responding more strongly to social influences

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateSep 14, 2011

Downwardly mobile: When consumer decisions are influenced by people with lower socioeconomic status

A new study reveals that consumers are influenced by people with lower socioeconomic status, particularly when they aspire to a desirable trait. The 'low status user effect' suggests that observing a person from a lower status group using a product can lead to interest and emulation among higher-status individuals.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateSep 14, 2011

This beetle uses eggs as shields against wasps

Researchers discovered that desert seed beetles use a strategy of stacking their eggs as shields against parasitic wasps. The beetles lay their eggs on seed pods, then stack multiple layers to protect them from the wasp species. This behavior prevents the wasp larvae from developing and allows the beetle offspring to survive.

Using lasers to vaporize tissue at multiple points simultaneously

Using a single UV laser pulse, researchers can now zap away biological tissue at multiple points simultaneously. This technique allows scientists to isolate specific cells and observe their shape dictated solely by internal forces. The method has potential applications in developmental biology and bioengineering.

SourceOptica·JournalBiomedical Optics Express·DateSep 13, 2011

Plant compound reduces breast cancer mortality

Researchers at Helmholtz Association find that phytoestrogens, particularly lignans and their metabolite enterolactone, may help reduce breast cancer mortality. Enterolactone levels are linked to clinical disease progression and mortality risk, with higher levels associated with lower risk.

SourceHelmholtz Association·JournalJournal of Clinical Oncology·DateSep 13, 2011

Does race dictate quality of care?

A study published in Clinical Orthopaedics and Related Research found that African American patients are less likely to be admitted to high-volume hospitals for total knee replacement surgery, receiving instead lower-quality care. This racial disparity affects access to high-quality arthroplasty care.

SourceSpringer·JournalClinical Orthopaedics and Related Research·DateSep 13, 2011

Science finding is music to the ears

A study of 74 musicians and 89 non-musicians found that being a musician can delay age-related decline in central auditory processing, allowing older musicians to understand speech in noisy environments as well as younger non-musicians. This advantage was particularly pronounced for older musicians.

SourceBaycrest Centre for Geriatric Care·JournalPsychology and Aging·DateSep 13, 2011

NASA awards $100,000 for space exploration power systems

NASA has awarded a $100,000 grant to Penn State researcher Michael V. Paul for developing non-radioisotope power systems. The project aims to explore sunless solar system missions using metal-combustion engines, which could enable low-cost planetary exploration without relying on radioisotope power sources.

Bats adjust their 'field-of-view'

Egyptian fruit bats exhibit sophisticated spatial orientation using echolocation, adjusting their 'field-of-view' by altering sonar beam width and intensity in response to environmental complexity. This adaptability enables them to track targets and avoid collisions in dense environments.

SourcePLOS·JournalPLOS Biology·DateSep 13, 2011