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Science News for August 30, 2004


Professor calls for a new branch of learning

Professor Ken Donaldson proposes the creation of a new discipline, nanotoxicology, to study the potential harmful effects of nanoparticles. The importance of nanotechnology is debated, but its adverse impacts need to be studied to ensure sustainable development.

SourceUniversity of Edinburgh·JournalOccupational and Environmental Medicine·DateAug 30, 2004

New gene identified in breast cancer

Researchers at McGill University have identified a new gene, beta1-integrin, that plays a crucial role in the growth and development of breast cancer. Blocking this gene's function has been shown to halt tumour proliferation and prevent tumours from growing.

SourceMcGill University·JournalCell·DateAug 30, 2004

Study supports aggressive treatment of heart patients with cholesterol-lowering medication

A study published in The Journal of the American Medical Association found that treating patients with recent acute coronary syndromes with higher doses of statins soon after experiencing heart-attack symptoms leads to a reduction in subsequent death, congestive heart failure, and other cardiac events compared to delayed treatment with...

Tiny writing: researchers develop improved method to produce nanometer-scale patterns

Scientists have created a new technique to write nanometer-scale patterns onto surfaces, extending the capabilities of dip pen nanolithography. The thermal dip pen nanolithography (tDPN) method uses solid inks and special AFM probes with built-in heaters to control ink flow, allowing for precise patterning in vacuum environments.

SourceGeorgia Institute of Technology Research News·JournalApplied Physics Letters·DateAug 30, 2004

Study highlights long-term efficacy of angina drug

A new study highlights the long-term efficacy and safety of the angina drug nifedipine GITS, showing it can be used safely for the treatment of patients with coronary disease. The trial found similar mortality rates among those receiving the medication and a placebo, but lower incidence of heart failure and coronary interventions.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 30, 2004

Time isn't money

A study by University of Washington researchers found that people are less certain about the value of their time compared to money. Consumers tend to rationalize negative experiences when paying with time, but not when using hard-earned cash.

SourceUniversity of Washington·JournalJournal of Consumer Research·DateAug 30, 2004