in this paper, an approximate method is proposed for determining sway of multistory rc buildings subjected to various types of lateral loads. the calculation of both fundamental period and stability index in rc building requires the sway term at each story level. using approximate method design engineers can estimate sway terms at each story level. the developed analytical expressions are inser...

Metallothioneins (MTs) are a group of low molecular mass, cysteine-rich proteins with a variety of functions including involvement in metal homeostasis, free radical scavenging, protection against heavy metal damage, and metabolic regulation via Zn donation. The overexpression of MTs in proliferating cells is turning the attention to the study of MTs as novel promising marker of tumor diseases....

In these methods, the response of the test organism to graded concentrations of the substance being assayed is determined, after a suitable incubation period, by measurement of the amount of growth in terms of dry cell weight. Under the conditions of assay, this weight is proportional to the concentration of the limiting factor. By comparing the response of the test organism to the sample being...

The last few decades have shown that analytical chemistry and environmental chemistry are “conjoined twins”. Neither can move significantly forward without the contribution and support of the other discipline. But in their conjoined development both disciplines have contributed much to our knowledge of environmental pollution, to the understanding of environmental processes, and to the developm...

A Concise Background on Fuel Oxygenates Fuel oxygenates are oxygencontaining compounds (e.g., ethers and alcohols) that are added to gasoline either to boost the octane rating, to make the fuel burn cleaner by increasing the oxygen content, or to achieve a combination of both. The most commonly used oxygenates are methyl tertiary-butyl ether (MTBE) and ethanol. Other oxygenates include tertiary...

The Nobel Prize in Chemistry for 2002 is being shared between scientists in two important fields: mass spectrometry (MS) and nuclear magnetic resonance (NMR). The Laureates, John B. Fenn and Koichi Tanaka (for MS) and Kurt Wüthrich (for NMR), have contributed in different ways to the further development of these methods to embrace biological macromolecules. This has meant a revolutionary breakt...

Introduction Conclusions References