Tag Archives: transmission

Stemming Russia’s HIV Epidemic

Clean Syringes Often Unavailable in St. Petersburg, YSPH Research Finds

Russia’s HIV epidemic is among the fastest growing in the world and injection drug users who often share needles and other supplies are hardest hit. This occurs even though pharmacies are a legal source for clean syringes and can sell them without restriction.

A recent study led by the Yale School of Public Health and St. Petersburg State University mapped the city’s 965 pharmacies and compared their locations and density to HIV prevalence at the district level. (more…)

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A New Tool to Attack the Mysteries of High-Temperature Superconductivity

Berkeley Lab researchers use an ultrafast laser to better understand high-temperature superconductors

Superconductivity, in which electric current flows without resistance, promises huge energy savings – from low-voltage electric grids with no transmission losses, superefficient motors and generators, and myriad other schemes. But such everyday applications still lie in the future, because conventional superconductivity in metals can’t do the job.

Although they play important roles in science, industry, and medicine, conventional superconductors must be maintained at temperatures a few degrees above absolute zero, which is tricky and expensive. Wider uses will depend on higher-temperature superconductors that can function well above absolute zero. Yet known high-temperature (high-Tc) superconductors are complex materials whose electronic structures, despite decades of work, are still far from clear. (more…)

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Biodiversity Loss: Detrimental to Your Health

*Infectious diseases on the rise as species disappear*

Plant and animal extinctions are detrimental to your health.

That’s the conclusion of a paper published in this week’s issue of the journal Nature by scientists who studied the link between biodiversity and infectious diseases. (more…)

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