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Science News for July 27, 2008


Dementia in developing nations may have been substantially underestimated

A new study published in The Lancet suggests that dementia prevalence in less developed countries may be significantly higher than initially estimated. The study used a unique diagnostic method to assess dementia cases in 15 sites across 11 countries, revealing higher prevalence rates compared to conventional criteria.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJul 27, 2008

Pre-eclampsia may be autoimmune disease

Biochemists at the University of Texas Medical School have found evidence that pre-eclampsia may be an autoimmune disease, with autoantibodies activating an angiotensin receptor that causes artery constriction. This could lead to novel diagnostic and therapeutic possibilities for the condition.

SourceUniversity of Texas Health Science Center at Houston·JournalNature Medicine·DateJul 27, 2008

Scientists demonstrate highly directional semiconductor lasers

Researchers at Harvard University developed a plasmonic collimator that reduces beam divergence by 25 times, enabling applications in photonics and communications. The innovation opens doors to edge-emitting and surface-emitting semiconductor lasers operating at various wavelengths.

SourceHarvard University·JournalNature Photonics·DateJul 27, 2008
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Defining DNA differences to track and tackle typhoid

A new study uses next-generation DNA sequencing to uncover genetic signatures of typhoid fever, allowing for improved diagnosis, tracking of disease spread, and potential design of new vaccines. The technology also enables researchers to identify individual organisms causing outbreaks and target vaccination campaigns more effectively.

SourceWellcome Trust Sanger Institute·JournalNature Genetics·DateJul 27, 2008
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Francisella tularensis: Stopping a biological weapon

A vaccine for tularemia, caused by Francisella tularensis, is being developed as the disease's potential as a bioterrorism agent has increased. Researchers have made progress in understanding the bacterium's pathogenesis and identifying potential targets for a vaccine.

SourceMicrobiology Society·JournalJournal of Medical Microbiology·DateJul 27, 2008