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Science Letter articles from September 2008

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<a href="http://www.highbeam.com/Science+Letter/publications.aspx?date=200809" title="Articles and back issues from Science Letter">Science Letter articles</a>

Science Letter back issues from September 2008:

'AFRICAN GIRL': New Novel Follows Trials and Tribulations of Young Girl and Her Famous Friends.

Sep 02, 2008 ... What happens when Nelson Mandela, Abraham Lincoln and the Pope meet? Find out in "AFRICAN GIRL" (published by AuthorHouse - http://www.authorhouse.com/), the debut novel by teenage author R.R. Pravin (see also AuthorHouse). Teenager Lea and her mother, Mia, have been living a ...

New Book Explores Life, Love from Perspective of Black American.

Sep 02, 2008 ... "They say that if you write about events in your life that are beyond your control ... it helps to make them bearable," Malik Aziz writes in the foreword to his new book. "Well, I wrote this brief piece about the one thing I could not control ... my love for Naderge." In "From ...

Office of the Comptroller of the Currency Sides With Banks Against Consumers on Credit Card Reform Proposal.

Sep 02, 2008 ... The Office of Comptroller of the Currency (OCC) is urging the Federal Reserve Board and other federal regulators to water down a proposed set of rules that would prohibit banks from engaging in certain unfair and deceptive credit card lending practices, according to Consumers Union, ...

Fitch: U.S. Muni Surveillance: Commerce, TX Aff'd at 'A'; Outlook Stable.

Sep 02, 2008 ... In the course of routine surveillance, Fitch affirms the 'A' rating on Commerce, Texas's approximately $7.9 million in outstanding general obligation (GO) bonds and $1.9 million in outstanding certificates of obligation (CO) bonds. The Rating Outlook is Stable (see also Fitch Ratings). ...

GeneLink Responds to Lawsuit.(Report)

Sep 02, 2008 ... On August 18, 2008, GeneLink, Inc. (OTCBB:GNLK.OB), a leading consumer genomics biotech company, filed its Quarterly Report on Form 10-Q for the Period Ended June 30, 2008 (the "Report"). The Report was delayed to allow the Company to review the complaint filed in the Philadelphia Court of ...

MESA International Announces New SOA Track at Plant-To-Enterprise Conference and SOA in Manufacturing Guidebook.(Conference news)

Sep 02, 2008 ... The Manufacturing Enterprise Solutions Association, MESA International, announced that it has added a new track on industrial Service Oriented Architecture (SOA) to its Annual Plant-To-Enterprise Conference: Delivering on Strategies, which will take place September 21-23, 2008 at Rosen ...

Military Spouse of the Year Award Now Accepting Nominations.

Sep 02, 2008 ... Military Spouse magazine (MSM) announced that it is now accepting nominations for its 2009 Military Spouse of the Year (MSOY) award, sponsored by USAA. The MSOY honoree represents the millions of military spouses who are unsung heroes maintaining the homefront, giving back selflessly to ...

Sociedad de Inversiones Pampa Calichera S.A. Reports Earnings for the First Six Months of 2008.(Financial report)

Sep 02, 2008 ... Sociedad de Inversiones Pampa Calichera S.A. ("Calichera") (Santiago Stock Exchange: CALICHERAA, CALICHARAB) reported earnings for the first six months of 2008, which reached US$59.17 million (US$ 0.040 per share), 258.4% higher than the US$ 16.51 million (US$ 0.014 per share) recorded ...

Channel Insider and Amazon Consulting Form Strategic Partnership.

Sep 02, 2008 ... Channel Insider, a multimedia suite of IT reseller news and market intelligence published by Ziff Davis Enterprise, and Amazon Consulting, the leading channel consulting and professional services company, have entered into an exclusive strategic partnership to help IT vendors, original ...

New african studies data have been reported by scientists at University of Manitoba.

Sep 02, 2008 ... "This paper revisits the issue of aid effectiveness in Africa by examining the effect of aid on growth. Historically, Africa's development context appears to be an aid-dependent one, and with the New Partnership for Africa's Development (NEPAD) calling for additional capital flows to ...

Research on african studies detailed by A. Geda and co-authors.(Report)

Sep 02, 2008 ... According to a study from Addis Ababa, Ethiopia, "In this paper, we address two major questions. First, the question of whether China and India are displacing the African manufacturing export from the third market." "Second, whether there is an evidence of shifting comparative ...

Scientists at University of Antwerp describe research in african studies.

Sep 02, 2008 ... According to recent research from Antwerp, Belgium, "During the 1990s, the Zambian economy underwent major structural adjustments. This paper presents an application of a recently proposed poverty decomposition that attributes changes in poverty to income growth, changes in inequality and ...

Research from Campinas State University, Medical Department provides new data about analytical cytology.

Sep 02, 2008 ... "To investigate whether preprocessing of digitized images can improve the image analysis of chromatin of cytologic preparations using Fast Fourier Transformation (FFT). In a preprocessing step the nuclear borders of the segmented nuclei were smoothed, thus avoiding the Airy ring artifact," ...

New antioxidants and redox signaling study findings have been reported by researchers at University of Zurich.

Sep 02, 2008 ... According to recent research from Zurich, Switzerland, "Hemoglobin (Hb) released into the circulation during hemolysis and chemically modified Hb proposed for use as oxygen therapeutics exert toxic effects that are partially attributable to heme's oxidant activity. Native extracellular Hb ...

Research on antioxidants and redox signaling detailed by scientists at Johann Wolfgang Goethe University.

Sep 02, 2008 ... According to recent research from Mainz, Germany, "Chronic nitroglycerin treatment results in development of nitrate tolerance associated with endothelial dysfunction (ED). We sought to clarify how mitochondria-and NADPH oxidase (Nox)-derived reactive oxygen species (ROS) contribute to ...

Data from University of Wisconsin, Department of Agriculture advance knowledge in applied genetics.

Sep 02, 2008 ... According to recent research published in the journal Theoretical and Applied Genetics, "The three genomes of cucumber show different modes of transmission, nuclear DNA bi-parentally, plastid DNA maternally, and mitochondrial DNA paternally. The mosaic (MSC) phenotype of cucumber is ...

Findings from I. Oumar et al in applied genetics reported.(Report)

Sep 02, 2008 ... According to a study from Montpellier, France, "During the last 12,000 years, different cultures around the world have domesticated cereal crops. Several studies investigated the evolutionary history and domestication of cereals such as wheat in the Middle East, rice in Asia or maize in ...

Findings in applied genetics reported from S. Vezzulli and co-researchers.

Sep 02, 2008 ... "We have developed an integrated map from five elite cultivars of Vitis vinifera L.; Syrah, Pinot Noir, Grenache, Cabernet Sauvignon and Riesling which are parents of three segregating populations. A new source of markers, SNPs, identified in ESTs and unique BAC-end sequences was added to ...

New applied genetics findings from P. Somta and co-authors described.

Sep 02, 2008 ... "Azuki bean breeders have long been interested in producing azuki bean [Vigna angularis (Willd.) Ohwi & Ohashi] varieties with bruchid resistance. A new bruchid (Callosobruchus spp.) resistance source was found in V. nepalensis Tateishi & Maxted, a species that is cross compatible with ...

Reports by H.X. Xu and co-researchers describe recent advances in applied genetics.

Sep 02, 2008 ... "Triticum monococcum accession TA2026 showed resistance to wheat powdery mildew. To identify the resistance gene and transfer it to common wheat, genetic analysis and molecular mapping were conducted using an F-2 population and derived F-3 families from the cross of TA2026 x M389," ...

Research from J.L. Cuthbert and co-researchers in the area of applied genetics described.

Sep 02, 2008 ... "An F-1 derived doubled haploid (DH) population of 402 lines from the adapted spring wheat cross Superb (high yielding)/BW278 (low yielding) was developed to identify quantitative trait loci (QTL) associated with yield and yield components. A subset of the population (186 lines) was ...

Research from X.Y. Zhang et al has provided new information about applied genetics.

Sep 02, 2008 ... "Common beans were introduced from the Americas to China over 400 years ago and presently constitute an important export crop in many areas of the country. Evaluation of the genetic diversity present in Chinese accessions of common beans is essential for conservation, management and ...

Research on applied genetics described by J.B. Pierre and colleagues.(Report)

Sep 02, 2008 ... "Adaptation to the environment and reproduction are dependent on the date of flowering in the season. The objectives of this paper were to evaluate the effect of photoperiod on flowering date of the model species for legume crops, Medicago truncatula and to describe genetic architecture of ...

Research reports on applied genetics from A. Garcia and colleagues provide new insights.

Sep 02, 2008 ... According to recent research from Brazil, "Soybean production in South and North America has recently been threatened by the widespread dissemination of soybean rust (SBR) caused by the fungus Phakopsora pachyrhizi. Currently, chemical spray containing fungicides is the only effective ...

Scientists at University of Massachusetts target applied genetics.

Sep 02, 2008 ... According to a study from the United States, "Ryegrass (Lolium spp.) is among the most important forage crops in Europe and Australia and is also a popular turfgrass in North America. Previous genetic analysis based on a three-generation interspecific (L. perenne x L. multiflorum) ryegrass ...

Studies from Department of Agriculture further understanding of applied genetics.

Sep 02, 2008 ... "The Rc locus regulates pigmentation of the rice bran layer, and selection for the rc allele (white pericarp) occurred during domestication of the crop. White bran is now ubiquitous among cultivated varieties throughout rice growing regions of the world," researchers in the United States ...

Studies from P. Barret et al have provided new data on applied genetics.(Report)

Sep 02, 2008 ... "In flowering plants, double fertilization occurs when the egg cell and the central cell are each fertilized by one sperm cell. In maize, some lines produce pollen capable of inducing in situ gynogenesis thereby leading to maternal haploids that originate exclusively from the female ...

Studies from University of Hohenheim update current data on applied genetics.

Sep 02, 2008 ... According to recent research from Stuttgart, Germany, "Genetic diversity of elite breeding material can be increased by introgression of exotic germplasm to ensure long-term selection response. The objective of our study was to develop and characterize the first two rye introgression ...

Studies from University of Nairobi add new findings in the area of applied genetics.(Report)

Sep 02, 2008 ... According to recent research from Nairobi, Kenya, "Early-maturing cultivars of soybean [Glycine max (L.) Merr.] native to the shores of the Sea of Okhotsk (Sakhalin and Kuril Islands) and eastern Hokkaido (northern Japan) have a strong tendency to produce cleistogamous flowers throughout ...

Study results from Department of Agriculture provide new insights into applied genetics.

Sep 02, 2008 ... According to a study from the United States, "Brachypodium distachyon is being developed as a model system to study temperate cereals and forage grasses. We have begun to investigate its utility to understand seed development and grain filling by identifying the major seed storage proteins ...

Research data from L.L. Hunter and colleagues update understanding of audiology.

Sep 02, 2008 ... According to a study from the United States, "Wideband middle ear power (WMEP) measurement is a method of middle ear analysis that may provide improved diagnostic capability over single-frequency tympanometry. However, normative data, information about test-retest reliability, and results ...

Research from E.G. Piker et al has provided new information about audiology.

Sep 02, 2008 ... "Factors such as anxiety, depression, somatic awareness, autonomic symptoms, and differences in coping strategies are known to affect dizziness handicap. We studied these factors in 63 consecutive ''dizzy'' patients," scientists in the United States report (see also Audiology). ...

Scientists at Arizona State University publish new data on audiology.

Sep 02, 2008 ... "Changes in hearing thresholds over a 10-year period in a large population of older adults (2130) ranging in age from 48 to 92 years were documented. Pure-tone thresholds at frequencies from 0.5 to 8 kHz were evaluated at a baseline examination and 2.5, 5, and 10 years later," scientists ...

Study data from K.C. Wagener et al provide new insights into audiology.

Sep 02, 2008 ... According to recent research from Oldenburg, Germany, "This article investigates the different acoustic signals that hearing aid users are exposed to in their everyday environment. Binaural microphone signals from recording positions close to the microphone locations of behind-the-ear ...

Recent findings from University of Melbourne highlight research in biochemistry.

Sep 02, 2008 ... According to a study from Melbourne, Australia, "To begin biochemical and molecular studies on the biosynthesis of the type II arabinogalactan chains on arabinogalactan-proteins (AGPs), we adopted a bioinformatic approach to identify and systematically characterise the putative ...

Studies from N. Ioannidis et al add new findings in the area of biochemistry.

Sep 02, 2008 ... "The O-2-evolving complex of photosystem II, Mn4Ca, cycles through five oxidation states, S-0, ..., S-4, during its catalytic function, which involves the gradual abstraction of four electrons and four protons from two bound water molecules. The direct oxidant of the complex is the tyrosine ...

Data on biophysics described by researchers at Technical University of Munich.

Sep 02, 2008 ... "The dynamics of proteins are often studied by means of quasielastic neutron scattering (QENS), for example by time-of-flight methods. The spatial dimensions (10-20 nm) present in protein solutions are accessible by neutron scattering," scientists writing in the European Biophysics Journal ...

Findings from G. Schiro and co-authors provide new insights into biophysics.

Sep 02, 2008 ... "In this work we study the effect of hydration on the dynamics of a protein in confined geometry, i.e. encapsulated in a porous silica matrix. Using elastic neutron scattering we investigate the temperature dependence of the mean square displacements of non-exchangeable hydrogen atoms of ...

Investigators at University of British Columbia target biophysics.(Report)

Sep 02, 2008 ... According to recent research published in the European Biophysics Journal with Biophysics Letters, "Interactions between plasma membrane-associated proteins on interacting cells are critical for many important biological processes. Few experimental techniques, however, can accurately ...

New biophysics research from J. Pencer and co-researchers described.(Report)

Sep 02, 2008 ... "An interdependence between local curvature and domain formation has been observed in both cell and model membranes. An implication of this observation is that domain formation in model membranes may be modulated by membrane curvature," scientists in Chalk River, Canada report (see also ...

Research results from University of Berlin update understanding of biophysics.

Sep 02, 2008 ... According to a study from Berlin, Germany, "The effect of hydration on protein dynamics in photosystem II (PS II) membrane fragments from spinach has been investigated by using the method of quasielastic neutron scattering (QENS) at room temperature." "The QENS data obtained ...

Studies from S. Combet et al further understanding of biophysics.

Sep 02, 2008 ... "Excitation energy transfer (EET) in light-harvesting antennae is a highly efficient key event in photosynthesis, where light-induced dynamics of the antenna pigment-protein complexes may play a functional role. So far, however, the relationship between EET and protein dynamics remains ...

Study data from R.A. Russell et al provide new insights into biophysics.

Sep 02, 2008 ... "The cultivation of microorganisms on deuterated substrates has allowed us to control deuterium incorporation into biopolymer systems which is important for characterisation using neutron scattering techniques," scientists writing in the European Biophysics Journal with Biophysics Letters ...

Investigators at University of Freiburg publish new data on cell biology.

Sep 02, 2008 ... "Axis formation is one of the earliest patterning events in plant and animal embryogenesis. In Arabidopsis, the main axis of the embryo is evident at the asymmetric division of the zygote into a small, embryonic apical cell and a large extraembryonic basal cell," scientists in Freiburg, ...

New cell biology study findings have been reported from Stanford University, Medical Department.

Sep 02, 2008 ... According to recent research from the United States, "Acquisition of planar cell polarity (PCP) in epithelia involves intercellular communication, during which cells align their polarity with that of their neighbors. The transmembrane proteins Frizzled (Fz) and Van Gogh (Vang) are ...

Research from B.D. Gregory et al has provided new information about cell biology.

Sep 02, 2008 ... "MicroRNAs (miRNAs) and small interfering RNAs (siRNAs) are abundant endogenous small RNAs (smRNAs) that control transcript expression through posttranscriptional gene silencing. Here, we show that concomitant loss of XRN4/EIN5, a 5-3'exoribonuclease, and ABH1/CBP80, a subunit of the mRNA ...

Research from McGill University reveals new findings on cell biology.

Sep 02, 2008 ... According to recent research from Montreal, Canada, "BAP31 is an endoplasmic reticulum protein-sorting factor that associates with newly synthesized integral membrane proteins and controls their fate (i.e., egress, retention, survival, or degradation). BAP31 is itself an integral membrane ...

Research from R. Basto and co-authors yields new data on cell biology.(Report)

Sep 02, 2008 ... According to recent research from Paris, France, "Centrosome amplification is a common feature of many cancer cells, and it has been previously proposed that centrosome amplification can drive genetic instability and so tumorigenesis. To test this hypothesis, we generated Drosophila lines ...

Research from X. Chen and co-researchers in the area of cell biology described.

Sep 02, 2008 ... "Transcription factors (TFs) and their specific interactions with targets are crucial for specifying gene-expression programs. To gain insights into the transcriptional regulatory networks in embryonic stem (ES) cells, we use chromatin immunoprecipitation coupled with ultra-high-throughput ...

Research reports from University of London, Imperial College provide new insights into cell biology.

Sep 02, 2008 ... According to recent research from London, the United Kingdom, "Cells enter senescence, a state of stable proliferative arrest, in response to a variety of cellular stresses, including telomere erosion, DNA damage, and oncogenic signaling, which acts as a barrier against malignant ...

Researchers at National Institutes of Health target cell biology.

Sep 02, 2008 ... According to recent research from the United States, "The prevailing view of intra-Golgi transport is cisternal progression, which has a key prediction-that newly arrived cargo exhibits a lag or transit time before exiting the Golgi. Instead, we find that cargo molecules exit at an ...

Studies by S. Polier and co-authors describe new findings in cell biology.

Sep 02, 2008 ... According to recent research from Martinsried, Germany, "Protein folding by Hsp70 is tightly controlled by cochaperones, including J-domain proteins that trigger ATP hydrolysis and nucleotide exchange factors (NEFs) that remove ADP from Hsp70. Here we present the crystal structure of the ...

Findings from R. Buchireddy and co-researchers advance knowledge in chromatography.

Sep 02, 2008 ... According to recent research from Hyderabad, India, "A simple, economic, and time-efficient stability-indicating, reversed-phase high-performance liquid chromatographic method has been developed for analysis of rabeprazole in the presence both of impurities and of degradation products ...

Investigators at Florida State University release new data on chromatography.

Sep 02, 2008 ... "An analyte that is introduced onto a column as a finite band broadens as it moves along the column. This band-broadening is generally attributed to three independent processes, including flow path inequalities, molecular diffusion, and resistance to mass transfer," scientists in the ...

New chromatography findings from S. Simon and co-authors described.

Sep 02, 2008 ... "A method is described which allows to determine the content of the so-called C-80 tetra-acid molecules (TA) in calcium naphthenate deposits. The method consists of four steps," scientists in Trondheim, Norway report (see also Chromatography). "Molecules present in the deposit ...

New chromatography findings from Sichuan University described.(Report)

Sep 02, 2008 ... According to recent research from Chengdu, People's Republic of China, "In this paper, high-speed counter-current chromatography (HSCCC) instruments with different gravitational forces were applied for the separation of bioactive compounds from Triperygium wilfordii Hook.f. The critical ...

New chromatography study findings have been reported from S. Biedermannbrem et al.

Sep 02, 2008 ... According to a study from Zurich, Switzerland, "In 1999, the EU banned the use of certain phthalates as plasticizers for toys and childcare products. To check the plasticizers actually used, in the first half of 2007 toys and childcare articles consisting of plasticized PVC were collected ...

New findings from Central South University in the area of chromatography described.

Sep 02, 2008 ... "A method for rapid preparative isolation and screening of antioxidants has been developed by combining preparative HSCCC with on-line radical scavenging detection by use of DPPH center dot (1,1-diphenyl-2-picrylhydrazyl) as model radical. The HSCCC effluent was split into two parts," ...

New findings from University of Virginia in the area of chromatography described.

Sep 02, 2008 ... According to a study from the United States, "A microchip-based solid-phase extraction method for biological fluid small molecule analysis has been developed. Using a commercially available copolymer packed into a microchip channel, extraction and preconcentration of 2,3-dihydroxybenzoic ...

Reports outline chromatography research from Hebei Medical University.

Sep 02, 2008 ... "A reversed-phase high-performance liquid chromatographic method was developed for the first time to simultaneously determine six major sesquiterpene lactones in Inula britannica L, that is, britannilactone, 1-O-acetylbritannilactone, hydroxylantolactone, 8-epi-ivangustin, ...

Research from N. Amirshahi and co-researchers provides new data on chromatography.

Sep 02, 2008 ... According to recent research from Russia, "To purify the mammalian cell membrane porphyrin binding proteins (PBP), an original affinity chromatographic technique is proposed." "The method is based on the application of an agarose attached fullerene-porphyrin ligand connected to ...

Research from Y.P. Zhang and co-researchers yields new findings on chromatography.

Sep 02, 2008 ... "An LC-MS-MS method was revised and validated for simultaneous determination of icariin and its active metabolite icariside II in human plasma. The analytes and daidzein ( IS) were extracted by liquid-liquid extraction and analyzed by LC-MS-MS," scientists writing in the journal ...

Research on chromatography detailed by scientists at Beijing University of Chemical Technology.

Sep 02, 2008 ... "Punicalagins are the main ingredients of phenolic compounds in pomegranate (Punica granatum L.) husk. A simple and accurate method for punicalagin analysis based on ethanol extraction and RP-LC using linear gradient of methanol in 0.1% TFA solution was established," investigators in ...

Scientists at China Pharmaceutical University publish new data on chromatography.

Sep 02, 2008 ... According to a study from Nanjing, People's Republic of China, "For the first time, a validated high-performance liquid chromatographic method with diode-array detection has been developed for discrimination and quality assessment of three species of Baishouwu. LC with gradient elution was ...

Scientists at Shanghai Jiao Tong University describe research in chromatography.(Report)

Sep 02, 2008 ... "Daidzein (4',7-dihydroxylisoflavone), a water-insoluble isoflavone, is mainly present in leguminous plants. This study was aimed at investigating the absorption characteristics of daidzein across the intestinal membranes," scientists writing in the journal Chromatographia report (see also ...