Environmental stability

Xem 1-20 trên 49 kết quả Environmental stability
  • Written by a multidisciplinary group of scientists from around the globe Environmental Restoration of Metals-Contaminated Soils provides a summary of the current environmental remediation technology.

    pdf291p 951628473 04-05-2012 59 22   Download

  • Significant advances in subsurface containment technology occurred in the 1990s, both with the improvement of the technology and the broader acceptance and applications as a measure for environmental remediation. Since 1995, the U.S. Department of Energy (USDOE), U.S. Environmental Protection Agency (USEPA), and DuPont have collaborated on a series of organized efforts to advance this technology. In that year, these collaborators sponsored an international expert workshop that led to the publication of the first major book on containment technology.

    pdf374p crazy_sms 10-05-2012 34 13   Download

  • To investigate the role of protein–protein and protein–nucleic acid interac-tions in virus assembly, we compared the stabilities of native bacteriophage MS2, virus-like particles (VLPs) containing nonviral RNAs, and an assem-bly-defective coat protein mutant (dlFG) and its single-chain variant (sc-dlFG).

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  • TheHfq (Host factor 1) polypeptide is anucleic acidbinding protein involved in the synthesis of many polypeptides. Hfq particularly affects the translation and the stability of several RNAs. In an earlier study, the use of fold recog-nition methods allowed us to detect a relationship between Escherichia coliHfq and the Sm topology. This topology was further validated by a series of biophysical studies and theHfqstructurewasmodelledonanSmprotein.Hfq forms ab-sheet ring-shaped hexamer.

    pdf8p dell39 03-04-2013 10 2   Download

  • The aim of this study was to increase the stability of the thermolabile (ba)8-barrel enzyme indoleglycerol phosphate synthase from Escherichia coli by the introduction of disulfide bridges. For the design of such variants, we selected two out of 12 candidates, in which newly introduced cysteines potentially form optimal disulfide bonds. These variants avoid short-range connections, substitutions near catalytic residues, and crosslinks between the new and the three parental cysteines.

    pdf9p research12 01-06-2013 8 2   Download

  • We report the effects of stabilizing osmolytes (low molecular mass organic compounds that raise the midpoint of thermal denaturation) on the stabil-ity and function of RNase-A under physiological conditions (pH 6.0 and 25C). Measurements of Gibbs free energy change at 25C(DGD) and kinetic parameters, Michaelis constant (Km) and catalytic constant (kcat )of the enzyme mediated hydrolysis of cytidine monophosphate

    pdf9p viettel02 20-02-2013 19 1   Download

  • Located at the interface of the geosphere, biosphere, hydrosphere and atmosphere, land is important for an understanding of both the natural environment process and those affected by human activities.

    pdf394p wikikhtn 02-04-2012 111 50   Download

  • The failure of the UN climate change summit in Copenhagen in December 2009 to effectively reach a global agreement on emission reduction targets, led many within the developing world to view this as a reversal of the Kyoto Protocol and an attempt by the developed nations to shirk out of their responsibility for climate change.

    pdf320p cucdai_1 15-10-2012 37 10   Download

  • In recent years a number of OECD countries experienced a rapid increase in housing market activity, which coincided with a period of low real and nominal interest rates. The link between the two is intuitive: low interest rates make credit cheaper and increase the demand for housing. Some scholars argue that expansionary monetary policy has been signicantly responsible for this low level of interest rates and the subsequent house price boom (Hume and Sentance (2009) and Taylor (2009)).

    pdf200p taisaovanchuavo 23-01-2013 20 9   Download

  • Dynamical systems theory in mathematical biology and environmental science has attracted much attention from many scientific fields as well as mathematics. For example, “chaos” is one of its typical topics. Recently the preservation of endangered species has become one of the most important issues in biology and environmental science, because of the recent rapid loss of biodiversity in the world. In this respect, permanence or persistence, new concepts in dynamical systems theory, seem important.

    pdf189p chuyenphimbuon 21-07-2012 26 8   Download

  • Tham khảo sách 'planet earth 2011 – global warming challenges and opportunities for policy and practice_2', khoa học tự nhiên, công nghệ môi trường phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf336p cucdai_1 15-10-2012 33 8   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí hóa học quốc tế đề tài : Reflections on changeability versus stability of health-related quality of life: distinguishing between its environmental and genetic components

    pdf7p panasonic07 04-01-2012 27 5   Download

  • Rapid response to emergencies includes the immediate shipment of supplies and equipment to help meet the minimum requirements in a crisis, such as enabling pregnant women to deliver in a clean environment. When the situation stabilizes, UNFPA provides support for the full range of reproductive health services. These services address the life-and-death complications of pregnancy and delivery, the transmission of sexually transmitted infections including HIV/AIDS, adolescent health, violence against women, and access to condoms and other contraceptives.

    pdf63p thankinhphanliet 21-12-2012 25 5   Download

  • The role of monetary analysis in the ECB’s monetary policy strategy is founded on the robust positive relationship between longer-term movements in broad money growth and inflation, whereby money growth leads inflationary developments. This relationship is found to hold true across countries and monetary policy regimes.

    pdf10p machuavo 19-01-2013 17 5   Download

  • Economic reforms implemented since the formation of the GPA have borne positive results for the economy. Real GDP grew by about 6% in 2009 and is estimated to have risen strongly to about 9.0% in 2010, reflecting strong performances in mining (47% growth) due to rising mineral and metal prices and higher agricultural output arising from higher output of tobacco, sugar, maize and cotton. Increases in agricultural output (34% growth) have historically supported manufacturing sector production (Box 1).

    pdf24p lenh_hoi_xung 01-03-2013 19 5   Download

  • In the Basel II framework, external ratings are used for the purpose of enhancing the risk sensitivity of the framework, for example, by being incorporated into assessments of the credit quality of an exposure or creditworthiness of a counterparty – and thus the imposition of capital requirements. External ratings are primarily used under the standardised approach for credit risk, 10 but also to risk-weight securitisations exposures.

    pdf45p enterroi 01-02-2013 17 3   Download

  • Dynamical systems theory in mathematical biology and environmental science has attracted much attention from many scientific fields as well as mathematics. For example, “chaos” is one of its typical topics. Recently the preservation of endangered species has become one of the most important issues in biology and environmental science, because of the recent rapid loss of biodiversity in the world. In this respect, permanence or persistence, new concepts in dynamical systems theory, seem important.

    pdf188p phoebe75 01-02-2013 17 3   Download

  • Enrichment of diet and culture media with the polyunsaturated fatty acid docosahexaenoic acid has been found to reduce the amyloid burden in mice and lower amyloid-b(Ab) levels in both mice and cultured cells. However, the direct interaction of polyunsaturated fatty acids, such as docosahexaenoic acid, with Ab, and their effect on Abaggregation has not been explored in detail.

    pdf11p galaxyss3 21-03-2013 7 3   Download

  • The long-term good health of populations depends on the continued stability and functioning of the biosphere’s ecological and physical systems, often referred to as life-support systems. We ignore this long-established historical truth at our peril: yet it is all too easy to overlook this dependency, particularly at a time when the human species is becoming increasingly urbanized and distanced from these natural systems.

    pdf906p quygia123 01-11-2012 20 2   Download

  • Gaucher disease is caused by mutations in the gene that encodes the lyso-somal enzyme acid b-glucosidase (GCase). We have shown previously that the small molecule pharmacological chaperone isofagomine (IFG) binds and stabilizes N370S GCase, resulting in increased lysosomal trafficking and cellular activity.

    pdf21p mobifone23 18-01-2013 7 2   Download

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