But first study of indoor air before and after a smoking ban finds carcinogens eliminated by smoke-free laws
The level of cancer-causing particles is much higher in the air of smoke-filled bars and casinos than on truck-choked highways and city streets, according to the first published comparison of indoor air quality before and after smoke-free workplace legislation. The study, conducted in a casino, six bars and a pool hall in Wilmington, Delaware, is published in the September 2004 Journal of Occupational & Environmental Medicine.
"This research clearly shows that it is far worse for your health to be a bartender or casino dealer in a smoking-permitted establishment than it is to be a turnpike toll collector," says James L. Repace, MSc., the study’s author. "These workers breathe an average of 90% cleaner air after a smoke-free workplace law." Repace, a health physicist, is visiting assistant clinical professor at Boston’s Tufts University School of Medicine and a secondhand smoke consultant based in Bowie, Md. In 2002, Repace received a Robert Wood Johnson Foundation Innovators Combating Substance Abuse award for his ground-breaking work on the effects of secondhand smoke. Funds from the award helped make this study possible.
Nanoparticles as a Solution against Antibiotic Resistance?
15.12.2017 | Friedrich-Schiller-Universität Jena
Plasmonic biosensors enable development of new easy-to-use health tests
14.12.2017 | Aalto University
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
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