Symptoms of illness less severe in hamsters during winter, study finds
... The researchers examined in particular the iron intake of the hamsters. Iron is a vital nutrient for the growth of bacteria, so animals normally avoid iron-rich foods when they are sick. In this study, the short-day hamsters avoided iron-...X-ray analysis of shipwreck may help conservators save waterlogged artifacts
...ur or pyrite, depending on the amount of available iron ions. The Swedish and Stanford researchers found ...roduct of sulfuric acid. In the air of the museum, iron species in the wood were catalyzing oxidation of the accumulated sulfur. Almost half of the sulfur h...Scientists use llama droppings to help combat water pollution
...phide. The sulphide then reacts with the dissolved iron and traps it, as iron sulphide, in the compost bed. This process also raises the pH in the water and generates alkalinity.......a metabolic disorder in which excessive amounts of iron are deposited in the liver, pancreas, and other or...e treated quite simply and effectively by removing iron from the body by frequently drawing blood, as in blood donations. About five out of every 1,000 Eur...UMass study uses microbes to turn mud into electricity
...n grow in environments lacking oxygen by using the iron naturally present in soil, in place of oxygen. This new research demonstrates that Geobacters can also substitute an unnatural substance, such as an electrode, for the iron, according to Lovley. A large number of a Geobacter species known as Desulfu...Ancient supernova may have triggered eco-catastrophe
...ected the presence of a highly unusual isotope of iron in samples of the Earths crust drilled from the deep ocean bottom. Knie had proposed that the iron isotope was debris from a recent supernova explosion that took place close to Earth. But astronomers...Magnetic tag lets scientists track stem cells in living rat
...hold onto the spheres, which contain a compound of iron and oxygen. The iron-laden cells create a magnetic...ic tags, Bulte says. And even though the amount of iron used to label the cells is tiny compared to the total amount of iron in the body, the labeled cells ...Iron supplements help African children learn to walk and talk
...ith the Ministry of Health of Zanzibar, found that iron supplementation improved motor and language develo...ment of preschool children, and the first study of iron and early child development in Africa. Iron deficiency anemia is associated with developmental delay...Ancient Chinese folk remedy may hold key to non-toxic cancer treatment
...ps control malaria because it reacts with the high iron concentrations found in the malaria parasite. Whe...work with cancer, too. Cancer cells need a lot of iron to replicate DNA when they divide, Lai explained. As a result, cancer cells have much higher iron c...Virginia Tech study may help develop more effective clean up of gasoline spills
...ia can use other TEAPs, such as nitrate reduction, iron reduction, sulfate reduction, and methanogenesis, ...unds. "Our study is looking at two specific TEAPs, iron reduction and methanogenesis," Spain said. "Were studying how the heterogeneities of Fe(III) concen...Researchers zero in on date of early hominids
...ectrically conducting fluid, composed primarily of iron and nickel alloy, with additions of other lighter elements. What triggers magnetic reversals isn't understood, Levi said, and reversals from one polarity to another may take thousands of years. Scientists have shown that during these transitions, the...Humboldt awarded for study of acid-mine drainage in Germany
...mination occurs when high solute concentrations of iron and other more toxic metals form during the weathering of pyrite and associated metal sulfides. These acidic effluent flows, from mine entrances and waste piles, mix with air and oxygenated surface water and precipitate metal oxides, oxyhydroxides, a...New research identifies why men and women may differ in food choices
...s, such as calcium (80 percent vs. 54 percent) and iron (65 percent vs. 41 percent), as well as fat (87 percent vs. 69 percent). Forty percent of women and 25 percent of men consider themselves to be extremely or very knowledgeable about nutrition. Maybe the survey is correct -- women probably eat more nu...Researchers uncover a piece of nature's secret nitrogen formula
...h century when chemist Fritz Haber discovered that iron can be used on a large scale to fix nitrogen, iron has been recognized as playing an important role as a catalyst. Bacteria also use iron, but Holland ...Scientists chart iron cycle in ocean
...d that sunlight plays an important role in cycling iron in the ocean and making it available to marine lif...h are at the bottom of the aquatic food chain. But iron is rare in surface seawater, and scientists believe it occurs almost entirely in complex molecules i......d donors with hemochromatosis, a disorder in which iron accumulates in organs and body tissues, do not pos...dic phlebotomies or blood letting to remove excess iron from their body. Because these patients benefit medically and financially by giving blood (they dont...NU scientist finds answers in Antarctic icefish
... cancer or kidney dialysis treatment, disorders of iron metabolism in red cells, and many leukemias. Currently, the lack of a rapid, unbiased, genome-wide scan for components of blood forming pathways hampers the gene identification approach for developing therapeutic agents targeted to these diseases an...Dust from Africa leads to large toxic algae blooms in Gulf of Mexico, study finds
...kin and respiratory problems in humans. Each year iron from Saharan dust clouds is deposited in the water...ida coast. Once there, plant-like bacteria use the iron to set the stage for red tides. When iron levels go up, this bacteria, called Trichodesmium, 'fixes'...Survival tactics in bacteria - environmental conditions fit for mankind
... that cyanobacteria can produce oxygen even in low iron conditions. This adaptation would have global envi...rvesting proteins such as PSI complexes which need iron for their synthesis and assembly. This stress response allows cyanobacteria to produce oxygen even i...John D. Gearhart's response to President Bushs stem cell decision
... it will take time to make the funds available and iron out the details. But even with the limitations he's put forth, it will likely affect stem cell research positively once the systems are in place for evaluating and awarding grants and overseeing the work. Federal funding is vital to efforts to brin...