Average life expectancy has nearly doubled since 1800, thanks to progress in medicine. Most of that was made by developing drugs and improving public health services. The medical revolution of the 21st century is going to ...
Hi Tech & Innovation
Apr 8, 2014
0
0
(Phys.org) —A team of researchers at the Max Planck Institute in Germany has found that a species of hornworm uses nicotine it gets from eating tobacco plants, as a means of defense. In their paper published in Proceedings ...
(Phys.org)—Native American hunter-gatherers living more than a thousand years ago in what is now northwestern California ate salmon, acorns and other foods, and now we know they also smoked tobacco—the earliest known ...
Archaeology
Mar 1, 2013
0
0
Cigarette butts are widely reviled as an urban nuisance but birds in Mexico City see them as a boon, apparently using them to deter parasites from their nests, scientists say.
Plants & Animals
Dec 5, 2012
17
0
The next time you take aspirin for a headache, thank a willow tree. Salicylic acid, a compound chemically similar to aspirin, is found in willow tree bark and is made by the plant as a chemical defense against pathogens. ...
Biotechnology
Nov 1, 2011
0
0
(PhysOrg.com) -- Purdue University researchers have developed a new type of pump for drug-delivery patches that might use arrays of "microneedles" to deliver a wider range of medications than now possible with conventional ...
Biochemistry
Sep 1, 2010
2
0
A test for one of the thousands of chemicals in cigarette smoke has the potential for more accurately estimating smokers' mouth level exposure and may have applications for developing custom-tailored quitting approaches for ...
Analytical Chemistry
Aug 25, 2010
0
0
(PhysOrg.com) -- Tuning out the noise of fellow passengers and the incessant hum of the turbojet engine, Lin Chen pored voraciously over the pages of James Watson's The Double Helix. The words and ideas flowed from the book's ...
Biochemistry
Jul 19, 2010
0
0
Toxins released by certain microalgae can contaminate fish and shellfish which then become toxic to humans. French researchers from CNRS and CEA have, for the first time, identified the mechanisms of action of two of these ...
Biochemistry
Mar 10, 2010
0
0
A study carried out at the University of Haifa has found that bees prefer nectar with a small concentration of caffeine and nicotine over nectar that does not comprise these substances at all. "This could be an evolutionary ...
Plants & Animals
Feb 10, 2010
5
0
