bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Recent Advances and Applications in Asymmetric Aza‐Michael Addition Chemistry
Authors: Krishna Palakodety Radha , Sreeshailam Aare , Srinivas Ravula 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 2‐Arylbenzoxazoles as Novel Cholesteryl Ester Transfer Protein Inhibitors: Optimization via Array Synthesis
Authors: Hunt Julianne A. 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Carbostannylation of Carbon—Carbon Unsaturated Bonds
Authors: Shirakawa Eiji 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Organotin Polymers and Related Materials
Authors: Sharma Hemant K. , Pannell Keith H. 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Physicochemical Properties of Organosuperbases
Authors: Margetic Davor 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: The Structures of Lipopolysaccharides from Plant‐Associated Gram‐Negative Bacteria
Authors: Molinaro Antonio , Newman Mari‐Anne , Lanzetta Rosa , Parrilli Michelangelo 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Stability Challenges in Drug Discovery.
Authors: Di Li , Kerns Edward H. 
Published: January 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Metallic Iron Filters for Universal Access to Safe Drinking Water
Authors: Noubactep Chicgoua , Schöner Angelika , Woafo Paul 
Published: January 2010

AbstractThe availability of sustainable safe drinking water is one of Millennium Development Goals (MDGs). The world is on schedule to meet the MDG to ‘halve by 2015 the proportion of people without sustainable access to safe drinking water in 2000’. However, present technologies may still leave more than 600 million people without access to safe water in 2015. The objective of the present article is to present a concept for universal water filters primarily made of metallic iron (Fe0) and sand. The concept of Fe0/sand filters is based on a combination of: (i) recent developments in slow sand filtration and (ii) recent progress in understanding the process of contaminant removal in Fe0/H2O systems. The filters should be made up of more than 60% sand and up to 40% Fe0. The actual Fe0 proportion will depend on its intrinsic reactivity. The most important question to be answered regards the selection of the material to be used. The design of the filter can be derived from existing filters. It appears that Fe0/H2O based filters could be a technology with worldwide applicability.
Infrared Spectrometric Purity Control of Organic Liquids and Water
Authors: Kondagula Fayaz , Molt Karl 
Published: January 2010

AbstractFor the purpose of purity control, spectral comparisons are performed by regressing the infrared spectrum of a potentially polluted sample on the reference spectrum of the pure compound. The resulting correlation coefficient, R, is a measure of the similarity between both spectra. It is shown that it is advantageous to transform R to Fisher's Z coefficient, especially in the case of relatively small impurities. Following this transformation, a critical value for Z can be determined by reproducibility measurements and if Z falls below this critical value for a certain sample, a contamination of the examined product will be diagnosed. As a first example, the manner in which a certain type of phthalate plasticizer containing small contaminations of another similar type can be analyzed, is described. The purity control of water is discussed as a second example. In this case, potassium hydrogen phthalate is the impurity that can be detected. All spectra are measured by multiple internal reflection using a Diamond Attenuated Total Reflectance (ATR) accessory. Impurities in the per mill range (ca. 0.1–10%) can be detected using this technique.
The Use of Polyphenolic Compounds from Black Tea for the Solid Phase Extraction and Determination of Trace Iron in Drinking Water
Authors: Farhadi Khalil , Maleki Ramin , Nikkhahi Yousef 
Published: January 2010

AbstractA simple and selective solid phase extraction procedure for the trace analysis of iron(III) in water samples has been developed. Sodium dodecyl sulfate coated alumina, modified with polyphenolic compounds (extracted from black tea) was used for the extraction and preconcentration of iron(III) from water samples before determination by flame atomic absorption spectrometry. Due to the complexation reaction between iron(III) and polyphenol compounds, iron(III) was quantitatively extracted on the proposed sorbent and then eluted by 2.0 mL of HCl (1.0 mol/L). The effects of extraction parameters, such as pH and volume of sample solution, amount of polyphenolic compounds, type of eluting agent and the effect of interfering ions on the extraction of iron(III), were investigated. It was found that the proposed method had a good linear range (15.0–100.0 μg/L) and a low detection limit (10.0 μg/L). The procedure was successfully applied for iron determination in drinking water samples.
Development of an Advanced Biological Treatment System Using Bioaugmentation Technology for the Treatment of Eutrophic Drinking Water Resources
Authors: Meng Zhi‐Qi , Zhao Yi , Lu Zhen‐Mei , Min Hang , Shen Jin‐Wen , Xu Xiang‐Yang 
Published: January 2010

AbstractDrinking water supplies around the world are increasingly at risk from eutrophication. However, many of the technologies developed in the laboratory to control water eutrophication have not been successfully applied in situ. To explore an in situ water treatment strategy for treating eutrophic drinking water resources, a laboratory system simulating a real river way was designed and used to treat raw eutrophic drinking water. The system included several removable modules and bioaugmentation technology to ensure the formation and maintenance of the biofilm, and enhance treatment efficiency. During operation of the system, the biofilm was successfully formed and maintained under a continuous hydraulic shock loading up to 14.4 m3 m–2 d–1, and the average removal rates of chlorophyll a, TN, and TP were 83.85, 53.44 and 70.78%, respectively. The biofilm had a high phosphorus storage capacity, even when phosphorus loading increased to 15–20 mg/L, the removal was constant at around 10 mg/L. Moreover, PCR‐DGGE analysis demonstrated that the bioaugmented bacteria, including Flavobacterium and Pseudomonas, successfully colonized the biofilm inside the system. Furthermore, the original community of microorganisms from the raw drinking water was maintained, which is an important aspect of the in situ treatment process. In conclusion, this strategy successfully treated raw eutrophic drinking water in the simulated river way. Its efficacy, low operation cost and application to water safety make this system a promising prospect for controlling eutrophication of drinking water resources.
Removal of Selenium by Adsorption onto Granular Activated Carbon (GAC) and Powdered Activated Carbon (PAC)
Authors: Wasewar Kailas L. , Prasad Basheshwar , Gulipalli Sekhararao 
Published: January 2010

AbstractThe present work involves the study of Se(IV) adsorption onto granular activated carbon (GAC) and powdered activated carbon (PAC). The adsorbents are coated with ferric chloride solution for the effective removal of selenium. The physico‐chemical characterization of the adsorbents is carried out using standard methods, e. g., proximate analysis, scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR), thermo‐gravimetric (TGA) and differential thermal analysis (DTA), etc. The FTIR spectra of the GAC and PAC indicate the presence of various types of functional groups, e. g., free and hydrogen bonded OH groups, silanol groups (Si‐OH), alkenes, and CO group stretching from aldehydes and ketones on the surface of adsorbents. Batch experiments are carried out to determine the effect of various factors such as adsorbent dose (w), initial pH, contact time (t), and temperature (T) on the adsorption process. The optimum GAC and PAC dosage is found to be 10 g/L and 8 g/L, respectively, for Se(IV) removal with C0 = 100 mg/L. The percent removal of Se(IV) increases with increasing adsorbent concentration, while removal per unit weight of adsorbent increases with decreasing adsorbent concentration. Se(IV) adsorption onto both the GAC and PAC adsorbents is high at low pH values, and decreases with increased initial pH. The results obtained are analyzed by various kinetic models. The parameters of pseudo‐first order, pseudo‐second order kinetics, and Weber‐Morris intra particle kinetics are determined. It is seen that the sorption kinetics of Se(IV) onto GAC and PAC can be best represented by the pseudo‐second order kinetic model.
Pyrrolidine Derivatives as Plasmepsin Inhibitors: Binding Mode Analysis Assisted by Molecular Dynamics Simulations of a Highly Flexible Protein
Authors: Luksch Torsten , Blum Andreas , Klee Nina , Diederich Wibke E. , Sotriffer Christoph A. , Klebe Gerhard 
Published: January 2010

AbstractPlasmepsins II (EC number: 3.4.23.39) and IV (EC number: 3.4.23.B14) are aspartic proteases present in the food vacuole of the malaria parasite Plasmodium falciparum and are involved in host hemoglobin degradation. A series of pyrrolidine derivatives, originally synthesized as HIV‐1 protease inhibitors, were tested for activity against plasmepsin (Plm). Inhibitors in the nanomolar range were discovered for the Plm II and IV isoforms. Detailed studies were carried out to identify putative binding modes that help to explain the underlying structure–activity relationships. Reasonable binding modes were generated for pyrrolidine‐3,4‐diester derivatives and a substituted 3,4‐diaminopyrrolidine inhibitor by using a crystal structure of inhibitor‐bound Plm II (PDB ID: 1LEE). Modeling studies indicated that the flap of available Plm crystal structures is not sufficiently opened to accommodate the 3,4‐bis(aminomethylene)pyrrolidines. Molecular dynamics simulations were performed to analyze the flexibility of the protein in greater detail, leading to a binding mode hypothesis for the 3,4‐bis(aminomethylene)pyrrolidines and providing further insight and general implications for the design of Plm II inhibitors.
High Energy Density Physics with Heavy Ion Beams and related Interaction Phenomena
Authors: Hoffmann D.H.H. , Tahir N.A. , Udrea S. , Rosmej O. , Meister C.V. , Varentsov D. , Roth M. , Schaumann G. , Frank A. , Blazevic A. , Ling J. , Hug A. , Menzel J. , Hessling Th. , Harres K. , Günther M. , El‐Moussati S. , Schumacher D. , Imran M. 
Published: January 2010

AbstractHigh intensity particle beams from accelerators induce high energy density states in bulk matter. Due to the specific nature of the ion‐matter interaction a volume of matter is heated uniformly with low gradients of temperature and pressure in the initial phase, depending on the pulse structure of the beam with respect to space and time. We present an overview on recent results and developments of beam plasma, and beam matter interaction experiments with heavy ion and laser beams (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Resonant Penetration of a Circularly Polarized Femtosecond Laser Pulse Through Ultra‐Thin Foils
Authors: Bordyukh N.V. , Krainov V.P. 
Published: January 2010

AbstractWe develop the theory of penetration of an intense femtosecond laser pulse through ultra‐thin metal foils. When the electron excursion length in laser field exceeds the foil thickness we cannot use the hydrodynamic approach, i.e. there is no dielectric constant of the foil, and well known macroscopic Fresnel formulas are inapplicable. We solve the Vlasov selfconsistent equations for the electromagnetic field inside the foil collisionless plasma. In the case of the linearly polarized laser field such a problem has been solved recently. Our current goal is the circularly polarized laser field since the electron velocities in this case are much greater than that for linearly polarized field. We found that the resonance peaks in the penetrations of radiation through the foil appear at definite foil thicknesses (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Stability of LiF Crystal in the Warm Dense Matter State
Authors: Stegailov V.V. 
Published: January 2010

AbstractThe finite temperature density functional theory approach is deployed for the description of the fcc LiF crystal in a two‐temperature warm dense matter state with hot electrons and cold lattice that is formed after ultrafast energy deposition. The lattice stability and the interatomic bonding at elevated electronic temperatures are studied (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Quantum Kinetic Approach to Time‐Resolved Photoionization of Atoms
Authors: Bonitz M. , Hochstuhl D. , Bauch S. , Balzer K. 
Published: January 2010

AbstractTheoretical approaches to the photoionization of few‐electron atoms are discussed. These include nonequilibrium Greens functions and wave function based approaches. In particular, the Multiconfiguration Time‐Dependent Hartree‐Fock method is discussed and applied to model a one‐dimensional atom with four electrons. We compute ground state energies and the time‐dependent photoionization by the field a strong laser pulse with two different frequencies in the ultraviolet (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Dynamic Properties of One‐Component Moderately Coupled Plasmas: The Mixed Löwner‐Nevanlinna‐Pick Approach
Authors: Arkhipov Yu.V. , Askaruly A. , Davletov A.E. , Tkachenko I.M. 
Published: January 2010

AbstractDynamic characteristics of strongly coupled one‐component plasmas are studied within the moment approach with local constraints, similar to that of Schur. The dynamic structure factor is modeled by the.rst three terms of its asymptotic decomposition at high frequencies and its values at a few interpolation points on the real axis. This makes the dynamic structure factor to be a non‐rational function whose extension onto the upper half‐plane of complex frequency is holomorphic with a nonnegative imaginary part and a continuous extension to the real axis. A free parameter of the non‐rational model function of the suggested Schur‐like algorithm is obtained from the Shannon entropy maximization procedure.The results automatically satisfy not only the sum rules and other exact relations but, also, interpolate between the interpolation frequencies. A quantitative agreement is obtained with simulation data on the plasma dynamic properties. The method permits to take into account the energy dissipation processes so that the results of alternative theoretical approaches are included into the moment scheme and are complemented. The algorithm tested herewith can also be used in a broader setting (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Equation of State of Shock Compressed Hydrogen
Authors: Gryaznov V. K. , Iosilevskiy I. L. , Fortov V. E. 
Published: January 2010

AbstractModel SAHA‐D based on chemical picture for equation of state of warm dense hydrogen is presented. Coulomb corrections are used via a modified pseudopotential model. Intense short‐range repulsion of neutral particles is described in simplified form (soft sphere model). The results of calculations of principal Hugoniots and double shock are compared with experiments and the first principle calculations. Asymptotic properties of the model at high temperature limit are considered (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Thermodynamic Functions of Dense Plasmas: Analytic Approximations for Astrophysical Applications
Authors: Potekhin A. Y. , Chabrier G. 
Published: January 2010

AbstractWe briefly review analytic approximations of thermodynamic functions of fully ionized nonideal electronion plasmas, applicable in a wide range of plasma parameters, including the domains of nondegenerate and degenerate, nonrelativistic and relativistic electrons, weakly and strongly coupled Coulomb liquids, classical and quantum Coulomb crystals. We present improvements to previously published approximations. Our code for calculation of thermodynamic functions based on the reviewed approximations is made publicly available (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Account of Atomic and Molecular Contributions in the Equation of‐State for a Weakly Non‐Ideal Hydrogen Plasmas
Authors: Starostin A. N. , Roerich V. C. 
Published: January 2010

AbstractConvergent partition function for atomic and molecular bound states is derived for weakly non‐ideal hydrogen plasmas. Corrections due to charged‐neutral particles interactions are also described. These contributions have been realized in the model equation of state of hydrogen plasmas and the HEOS code. The physical model EOS also includes the Coulomb and diffraction corrections, contributions of the scattering states, electron and ion interactions, and the radiation pressure. The calculated dependences of the heat capacity, the ionization degree, and partial pressures are presented (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Sec61α is required for dorsal closure during Drosophila embryogenesis through its regulation of Dpp signaling
Authors: Wang Xiaochen , Ward Robert E. 
Published: January 2010

AbstractDuring dorsal closure in Drosophila, signaling events in the dorsalmost row of epidermal cells (DME cells) direct the migration of lateral epidermal sheets towards the dorsal midline where they fuse to enclose the embryo. A Jun amino‐terminal kinase (JNK) cascade in the DME cells induces the expression of Decapentaplegic (Dpp). Dpp signaling then regulates the cytoskeleton in the DME cells and amnioserosa to affect the cell shape changes necessary to complete dorsal closure. We identified a mutation in Sec61α that specifically perturbs dorsal closure. Sec61α encodes the main subunit of the translocon complex for co‐translational import of proteins into the ER. JNK signaling is normal in Sec61α mutant embryos, but Dpp signaling is attenuated and the DME cells fail to maintain an actinomyosin cable as epithelial migration fails. Consistent with this model, dorsal closure is rescued in Sec61α mutant embryos by an activated form of the Dpp receptor Thick veins. Developmental Dynamics 239:784–797, 2010. © 2010 Wiley‐Liss, Inc.
A Theoretical Insight into the Mechanism of the Silver‐Catalysed Transsiliranation Reaction
Authors: Mayoral José Antonio , Rodríguez‐Rodríguez Sergio , Salvatella Luis 
Published: January 2010

AbstractDFT calculations on a silver‐catalysed transsiliranation reaction (silylene transfer from a silirane to an alkene) have shown the key role of a silylenesilver ion in the catalyticcycle. Although the corresponding triflate‐bound species has previously been detected by NMR and IR spectroscopy, no significant silylene‐transfer activity is predicted for such a nonionised structure. Several experimental results can be explained by this new reaction mechanism.
PCR‐product microarray based on polyacrylic acid‐modified surface for SNP genotyping
Authors: Shi Xiaolong , Tang Chao , Zhou Dequan , Sun Jinxia , Lu Zuhong 
Published: January 2010

AbstractPCR‐product microarray has great efficiency in SNP genotyping, mutation screening and epigenetic analyzing from a large number of samples. The current PCR‐product microarray technology is mostly based on the 3‐D gel microarray technologies due to its high loading capacity for PCR products, while there is little progress for PCR‐product microarray on planar glass, which gives low background and convenient fabrication. In this study, we improved the PCR‐product microarray on planar glass by employing a polyacrylic acid‐covered slide. The raw amino‐modified PCR products were simply precipitated with ethanol and directly spotted for DNA immobilization. Three detection methods of hybridization, solid‐single base extension and solid‐multiple bases elongation were carried out for single nucleotide variation identification on the PCR‐product microarray. The experimental results showed that the high immobilization yield for raw PCR product was achieved, and the high specificity and high ratio of S/N for genotyping on the microarray were obtained. SNP genotyping of cytochrome P450 2D6 gene in 30 individuals was successfully demonstrated. This study has significantly increased the performances of PCR‐product microarray, which could improve its applications in SNP genotyping and mutation screening in large number of individuals.
Immobilized pH gradients
Authors: Gianazza Elisabetta , Righetti Pier Giorgio 
Published: January 2010

AbstractIn this short review, we give an account of the steps through which the protocols for operation with IPGs were set up in the early '80s. One of the main achievements by our group was the development of a computer program, pH GRADIENT, for the calculation of pH, buffering power and ionic strength of a mixture of monoprotic buffers titrated within any pH span and for the linearization of the desired pH gradient. Using this program, in 1984 we could devise formulations for IPGs covering up to six pH units, which was the subject of a publication in Electrophoresis (volume 5, pages 88–97). This was the starting point for the use of IPGs for the resolution of protein samples of any composition and for their application as first dimension of 2‐DE separations. Currently IPGs are in common use in proteomics investigations, not only along classical protocols but also for sample prefractionation and in shotgun approaches. Much less frequently are they used for 1‐DE analytical applications, a field for which in recent years much attention has instead more often focused on capillary electrophoresis/IEF procedures.