Tips from the journals of the American Society for Microbiology
... Clinical Microbiology. Helicobacter pylori is a gram negative bacterium known for causing chronic gastric distress in individuals worldwide and can lead to the development of peptic ulcers and early onset of gastric cancer. Current methods for detecting H. pylori infection do provide highly sensitive ...Human albumin from tobacco plants
..., reaching an average of 0.9 milligrams of HSA per gram of fresh leaf weight. The key is the place where the gene in question is deposited. With the nuclear transformation method, it integrates into the DNA of the cell nucleus of the leaf and, thus, can only manage a small number of copies of the gene. W...New study suggests schools should add nondairy beverages to the lunch menu
...d more than 4 percent, and calcium consumption per gram of saturated fat consumed from calcium-rich beverages rose from 194 milligrams to 237 milligrams. The findings suggest that schools across the country should add soymilk to the lunch menu. "Soymilk has major health advantages over cow's milk," said J...Microbes hitchhike across Atlantic on desert dust
...ies of dust across oceans and continents. Since a gram of desert soil may contain as many as 1 billion bacterial cells, the presence of airborne dust should correspond with increased concentrations of airborne microorganisms," says Griffin Viable bacterial and fungal populations were collected on 24 of 4...Mushrooms as good an antioxidant source as more colorful veggies
... value of 9.7 micromoles of trolox equivalents per gram and criminis had an ORAC value of 9.5. Data available from other researchers shows carrots and green beans have an ORAC value of 5; red pepper 10; and broccoli 12. The ORAC assay, the most well known test of antioxidant capacity, focuses on the perox...Figuring out function from bacteria's bewildering forms
...ganic phosphate enters C. crescentus cells. As a gram negative bacterium, C. crescentus has two membranes -- an outer membrane and an inner membrane, with a space called the "periplasm" in between. Experiments demonstrated initial entry of organic phosphate across the entire cell surface, including th...Highlights from the August 2006 Journal of the American Dietetic Association
...nse diet defined as relatively fewer calories per gram of food consume more food by weight but fewer overall calories than people who follow a high-energy-dense diet, according to researchers from Pennsylvania State University. The study adds to a growing body of evidence indicating beneficial effects o...ASU researchers test antibacterial effects of healing clays
...e area is huge (greater than 100 square meters per gram of clay bigger than a football field). As a result, surface chemical reactions from these sites have an enormous impact on the geochemistry of the local environment. Williams is passionate about her subject: "Clays are as individual in character a...Beetle feet stick to their promises
...e artificial adhesive fibers on the soles of a 120 gram robot helped it to climb a vertical glass wall (Daltorio et al. 2005). In their current research, the scientists are trying to improve the adhesion by refining the structures even further. "However, there's still a lot of work to be done by the Wor...Mixing exploitation and conservation: A recipe for disaster
... and prey quality was low (0.15 grams of flesh per gram of shell), only 47% of arriving birds would avoid ...urvive if their gizzard could expand by at least 1 gram (70% for 1 gram, 88% for 2 grams). These degraded food conditions, the authors conclude, explains ...Botulism study could lead to new vaccines and treatments to counter bioterrorist attacks
...lysis of the limbs and respiratory muscles. Just 1 gram of botulinum neurotoxin, evenly dispersed and inhaled, could kill more than a million people, according to a 2001 study in the Journal of the American Medical Association. Botulinum also holds the distinction of being the only high-risk biological we...Dinosaurs -- stones did not help with digestion
...s also spans four orders of magnitude, from the 17 gram robin to the ostrich,' says Oliver Wings, who moved from Bonn University to Tbingen only recently. Yet what else were the dinosaurs' gastric stones used for? The researchers presume that they were accidentally eaten with their food or could have be...Study finds mercury prevalent in many western fish
...criterion" is set at 0.3 micrograms of mercury per gram of fish tissue. In the survey, only 2.3 percent of...te mercury." Mercury levels of 0.1 micrograms per gram of tissue are considered a threshold of concern for fish-eating mammals, though little research has ...ACS News Service weekly PressPac -- Feb. 7, 2007
...d particle weighing one trillionth of a gram, (one gram is one-twenty-eighth of an ounce), is present on an individual's clothing or baggage. "SPAMS is a sensitive, specific, reliable option for airport and baggage screening," the report states. "The ability of the SPAMS system to determine the identity o...Cellulosic ethanol: Fuel of the future?
...Miscanthus so special? ''It uses less water per gram of biomass produced than other plants,'' he said. ''For example, to make a pound of alfalfa or spinach requires about 600 pounds of water, while to grow a pound of Miscanthus requires only about 200 pounds of water.'' According to Somerville, Misca...100 percent of pregnant women have at least one kind of pesticide in their placenta
...ith an average concentration of 4.15 nanograms per gram of placenta (156.73 ng/g lipid). Surprisingly, the UGR researcher discovered that some patients placentas contained 15 of the 17 pesticides analyzed. A total of 668 samples from pregnant women were used in this study, which was approved by the Ethi...Iowa State scientists demonstrate first use of nanotechnology to enter plant cells
... can be filled with chemicals or molecules. "One gram of this kind of material can have a total surface area of a football field, making it possible to carry a large payload," Trewyn said. Lins nanoparticle has a unique "capping" strategy that seals the chemical goods inside. In previous studies, his ...New aerogels could clean contaminated water, purify hydrogen for fuel cells
...S). The researchers then submerged a fraction of a gram of the aerogel in a solution of mercury-contaminated water and found that the gel removed more than 99.99 percent of the heavy metal. The researchers believe that these gels can be used not only for this kind of environmental cleanup but also to remo...