Mute swan population helps explain longstanding evolutionary question
In an important new study forthcoming from The American Naturalist, biologists from the University of Oxford tracked a colony of mute swans for more than two decades to explore a longstanding evolutionary question: whether the number of eggs laid by a female bird ?known as "clutch size" ?changes in accordance with natural selection. "Extensive debate in the literature…was first focused on...Uniform tungsten trimers stand and deliver
Like tiny nano-soldiers on parade, the cyclic tungsten trioxide clusters line up molecule-by-molecule on the titanium dioxide platform. One tungsten atom from each cluster is raised slightly, holding forth the potential to execute catalytic reactions. The nanostructures constitute a new model system, a simplified version of a catalyst that would be used in an application. Such models reve...Glutathione-S-Transferase (GST) Colorimetric Assay Kit from Sigma-Aldrich
Description:Biochem/physiol Actions: Glutathione-S-transferases (GSTs) are a group of enzymes important in the detoxification of many xenobiotics in mammals. The enzymes protect cells against toxicants by conjugating the thiol group of the glutathione to electrophilic xenobiotics, and thereby defend cells against the mutagenic, carcinogenic, and toxic effects of the compounds. GST activity is presen...pET GST Fusion System 42 plus Competent Cells from Novagen
Description:Schistosomal glutathione-S-transferase (GST) is commonly used as a fusion partner when expressing proteins in E. coli (1). The GSTTag sequence has been reported to enhance the production and in some cases the solubility of its fusion partners. When expressed in a soluble, properly folded form, GSTTag fusion proteins can be purified with immobilized glutathione. Gentle elution is achieved with buf...pET GST Fusion System 42 from Novagen
Description:Schistosomal glutathione-S-transferase (GST) is commonly used as a fusion partner when expressing proteins in E. coli (1). The GSTTag sequence has been reported to enhance the production and in some cases the solubility of its fusion partners. When expressed in a soluble, properly folded form, GSTTag fusion proteins can be purified with immobilized glutathione. Gentle elution is achieved with buf...pET GST Fusion System 41 plus Competent Cells from Novagen
Description:Schistosomal glutathione-S-transferase (GST) is commonly used as a fusion partner when expressing proteins in E. coli (1). The GSTTag sequence has been reported to enhance the production and in some cases the solubility of its fusion partners. When expressed in a soluble, properly folded form, GSTTag fusion proteins can be purified with immobilized glutathione. Gentle elution is achieved with...A New C-Terminal GST Vector for Protein Production in S. pombe
Stratagene Stratagene has constructed and tested the new pESP-3 vector, which can beused for C-terminal fusion with glutathione-S-transferase (GST) and for protein production in Schizosaccharomyces pombe....Calcium-rich Diet Good For Youngsters
Youngsters who forego calcium-rich foods because they think they're fattening are mistaken, say researchers based on findings of a recent study .// Researchers say 9-year-old girls who consumed diets high in calcium were no more likely to put on additional pounds than kids the same age who ate typical diets. Instead, girls with diets high in calcium significantly improved their intake...Suicide Rate Amongst Male Prisoners Of UK Is Quite High
In a research letter published in the latest edition of The Lancet, researchers had pointed out that the rate of suicide amongst male prisoners of prisons in UK is much higher than the suicide rates in the general population // of the country, bringing to notice the existing conditions of the prisons in UK. There are around 70 000 men imprisoned in England and Wales, one of the highest...Youngsters Not Aware Of Sexually Transmitted Diseases
In a study conducted by Researchers at Carnegie Mellon University, majority of sexually active adolescent girls have negligible knowledge about sexually transmitted diseases//, until they are bitten. Julie downs, lead author of the study and a member of the Department of Social and Decision Sciences at Carnegie Mellon is of the opinion that in most cases Kids know about Sexually Trans...Movies Influence Youngsters To Drink
Young adolescents are increasingly taking their example from movies, and starting to experiment with alcohol at a very early age. A research// study has measured the influence of alcohol use in movies and, using data from more than 600 films and 5,000 students, found that movies play a significant role in an adolescent's decision to drink at a young age. The regional study was publi...Youngsters Take Their Example From Older Siblings
The University of Washington and the University of Queensland’s researchers have revealed that the sisters and brothers of a child are stronger role models than parents or friends // as far as habits like smoking and drinking are concerned. The younger children in a family tend to follow the example of their older siblings in such matters. Dr Abby Fagan of the University of Washingto...Lorenz LT2 Wire Twister - Tungsten Carbide
Description:Tungsten Carbide wire twister....Allis Grasping Forceps, Tungsten-Carbide
Description:Many special order products are offered as 1-piece or modular, in regular or extra long lengths. The modular instruments may be customized with handles of choice and other options such as ratchets, insulation and flush ports. Many standard patterns are available from Mediflex stock. Customer specifications may affect delivery times. Individual instrument components, su...