bluuebunny/crossref_metadata_2025 huggingface dataset:
Impacts on Various Management Practices on Crops Yield and Soil Biology in Maize-Wheat Cropping System
Authors: Kumar Alesh , Bandyopadhyay K. K. , Prasad Shiv , Kumar S. Naresh , Singh Renu , Kaur Ravinder , Shrivastava Manoj
Published: May 2024

Aims: Integrated approaches that consider the synergies and trade-offs among tillage, residue, and nitrogen management are essential for optimizing agricultural sustainability to highlight the complex interplay between agronomic, environmental, and biological factors. We intended to evaluate the impact of tillage, residue, and nitrogen management on crop growth and soil biological properties under a maize-wheat cropping system in an inceptisol.
Study Design: Split-split plot design.
Place and Duration of Study: ICAR-IARI research farm, New Delhi, since 2014.
Methodology: We collected soil samples at the anthesis stage of wheat crop and silking stage of maize crop at 0-5, 5-15, and 15-30 cm soil depth. Soil properties, namely soil organic carbon, dehydrogenase, acid, and alkaline phosphatase, soil microbial biomass carbon, soil microbial biomass phosphorus, and glomalin content by using standard procedures.
Results: We observed that the soil organic carbon, enzyme activities, microbial biomass carbon and phosphorus, and glomalin content were significantly (P<0.05) higher under no-tillage and residue treatment at 0-5 and 5-15 cm soil depth. Enzyme activity and microbial biomass carbon (MBC) were significantly higher by application of 100 and 150% RDN, respectively, at 0-5 and 5-15 cm soil depth. The effect of nitrogen treatment on biomass yield was significant (P<0.05) and found to be higher at 150% Recommended dose of Nitrogen (RDN). The biomass yield of maize was 15.3% and 44.5%, and wheat was 7.8% and 20.4%, significantly increased by applying 150% RDN over the 100% and 50% RDN respectively.
Conclusion: Farmers can successfully adopt NT with 5 t ha-1 crop residue mulch with 150% RDN to attain better soil health and higher biomass yield under the maize-wheat cropping system.
Dietary Diversity Score among Beneficiaries and Non-beneficiaries of Public Distribution System in Rural and Urban Telangana
Authors: Raj Boniga Mohan Uday , Suhasini Korabandi , Lavanya Thatigutla , Reddy Desireddy Srinivasa , Supriya Kallakuri
Published: May 2024

The present study assessed the dietary diversity score and the factors influencing dietary diversity of Pubic Distribution System (PDS) beneficiary and non-beneficiary households in rural and urban areas of Telangana state. Multistage purposive random sampling was used for the selection of three districts, six mandals and 12 each village and urban areas for conducting the study with a total sample of 480 households. The primary data collected through pre-tested interview schedules were analysed using Simpson Index Dietary Diversity (SIDD) score and later multiple linear regression was used to regress socio-economic and demographic variables to assess the influence of these variables on SIDD score. The results revealed that the overall dietary diversity score for rural and urban PDS beneficiaries was 0.86 whereas for rural and urban PDS non-beneficiary households’ SIDD score was 0.82 and 0.83 respectively. The results clearly showed that PDS beneficiary households had higher dietary diversity than non-beneficiaries’ households. Age, household size, education, farmland and livestock possession enhanced dietary diversity, thereby improving the nutritional status of households. Thus, the PDS can play a crucial role in guaranteeing food security. Furthermore, its effectiveness depends on including a variety of food items for distribution, and recommended promoting nutritional education, encouraging the consumption of locally sourced foods through health and nutrition awareness campaigns. In addition, implementing mechanisms for assessment, minimizing leakages and inclusion of eligible households through regular survey can help the vulnerable sections of population to achieve food and nutritional security.
Comparative Evaluation of Different Biocontrol Agents against Anthracnose of Nendran Banana Caused by Colletotrichum musae
Authors: A.T. Arun. , R Pramod. , N.V Radhakrishnan , Thara Susha S. , O. P Reji Rani , T. Anuradha.
Published: May 2024

India is the largest producer of banana in the world. Nendran, a French plantain, is the most important banana cultivar in Kerala. It is mainly affected by many diseases both in the field and after harvest. Being a freshly consumed fruit crop there are a lot of limitations in using chemicals for its disease control. Keeping this view, a study was conducted at the Department of Plant Pathology, College of Agriculture, Vellayani, to control anthracnose, a serious post harvest disease under tropical conditions. In this study comparative evaluation of three fungal biocontrol agents namely [Trichoderma sp. (KAU), Trichoderma sp. (TRPN-3), Trichoderma sp. (TRKR-2)] and bacterial biocontrol agents [Pseudomonas fluorescens (PN026), Bacillus sp. (B15), Bacillus sp. (B17)] were tested against Colletotrichum musae. Among the fungal biocontrol agents maximum mycelial growth inhibition was recorded with Trichoderma sp. (KAU) (77.44%) followed by Trichoderma sp. (TRKR-2) (77.11%). Minimum mycelial growth inhibition was recorded in P.fluorescens (PN026) (55.33%). Based on the results reveals that Trichoderma sp. (KAU) is a highly promising biocontrol agent for managing anthracnose of banana.
Evaluation of Candidal Species in Oral Submucous Fibrosis and Oral Lichen Planus: A Microbiological Study
Authors: Vikey Ashok , Pusame Astha
Published: May 2024

Background: Candida is opportunistic microorganisms in oral cavity, causes oral candidiasis. The presence of candida and subspecies in oral premalignant lesions may intensify the infection and transform pre malignant lesions into cancer.
Objective: To isolate various types of candida species, among Oral submucous fibrosis (OSMF) and Oral lichen Planus (OLP) patients.
Methodology: Total 60 individuals included and grouped as; OSMF (n=20) group A, Lichen Planus (n=10); group B and Controls (n=30) group C.
Results: The higher candida carriage revealed in OSMF+ OLP groups (23.3%) as compared to controls (10%). The species level findings showed 13.3% of candida albicans in  OSMF+ OLP and  6.7% in controls, candida krusei 6.7% in OSMF+ OLP and 3.3% in controls and  non candida albicans were 10% in OSMF+ OLP and 6.7% in control group respectively.
Conclusion: This basic understanding of candida species and their association with potentially malignant disorders will help in better interventions, so as to restrict the lesion before it transform in to malignancy.
Pattern Formation of Silver Nanoparticles in 1‐, 2‐, and 3D Microstructures Fabricated by a Photo‐ and Thermal Reduction Method
Authors: Park Jong‐Jin , Bulliard Xavier , Lee Ji Min , Hur Jaehyun , Im Kyuhyun , Kim Jong‐Min , Prabhakaran Prem , Cho Namchul , Lee Kwang‐Sup , Min Sung‐Yong , Lee Tae‐Woo , Yong Son , Yang Dong‐Yol
Published: June 2010

One‐, two‐, and three‐dimensional microstructures with dispersed silver nanoparticles are fabricated by a combination of photopatterning and thermal treatment from a silver salt containing photosensitive epoxy resin. Ultraviolet photo‐irradiation and subsequent thermal treatment are combined to control the rate of silver salt reduction, the size and the arrangement of nanoparticles, as well as the reticulation of the epoxy resin. This approach allows the creation of high resolution 1‐, 2‐, and 3D patterns containing silver nanoparticles, with a homogeneous distribution of nanoparticles regardless of the irradiated area.
Crossing an Interface: Ferroelectric Control of Tunnel Currents in Magnetic Complex Oxide Heterostructures
Authors: Hambe Michael , Petraru Adrian , Pertsev Nikolay A. , Munroe Paul , Nagarajan Valanoor , Kohlstedt Hermann
Published: June 2010

Experimental results on entirely complex oxide ferromagnetic/ferroelectric/ferromagnetic tunnel junctions are presented in which the tunneling magnetoresistance is modified by applying low electric field pulses to the junctions. The experiments indicate that ionic displacements associated with the polarization reversal in the ferroelectric barrier affect the complex band structure at ferromagnetic–ferroelectric interfaces. The results are discussed in the framework of the theoretically predicted magnetoelectric interface effect and may lead to novel multistate memory devices.
Nonuniform channels in adsorbent monoliths
Authors: Crittenden B. D. , Camus O. , Perera S. P. , Mays T. J. , Sánchez‐Liarte F. , Tennison S. R. , Crezee E.
Published: June 2010

A model is introduced to account for nonuniform channel geometries in monolithic adsorbents. Based on nonisothermal operation, fully developed parabolic flow and the full three‐dimensional convection‐diffusion equation, the model is applied to the adsorption of dichloromethane from an air stream flowing through a binder‐less activated carbon monolith. The equilibrium parameters and the effective diffusion coefficient for adsorption are obtained independently from gravimetric adsorption experiments. The nonuniform channel model is capable of predicting breakthrough curves as a function of feed gas flow rates up to dimensionless breakthrough concentrations of about 0.4–0.6, depending on the feed flow rate. Even though the variation of effective diffusion coefficient with both concentration and temperature has been tested, successful prediction over the whole range of concentration may require the incorporation of further aspects relating to the anisotropic nature of the carbon. © 2010 American Institute of Chemical Engineers AIChE J, 2011
Concepts and semantic relations in information science
Authors: Stock Wolfgang G.
Published: June 2010

Concept‐based information retrieval and knowledge representation are in need of a theory of concepts and semantic relations. Guidelines for the construction and maintenance of knowledge organization systems (KOS) (such as ANSI/NISO Z39.19‐2005 in the U.S.A. or DIN 2331:1980 in Germany) do not consider results of concept theory and theory of relations to the full extent. They are not able to unify the currently different worlds of traditional controlled vocabularies, of the social web (tagging and folksonomies) and of the semantic web (ontologies). Concept definitions as well as semantic relations are based on epistemological theories (empiricism, rationalism, hermeneutics, pragmatism, and critical theory). A concept is determined via its intension and extension as well as by definition. We will meet the problem of vagueness by introducing prototypes. Some important definitions are concept explanations (after Aristotle) and the definition of family resemblances (in the sense of Wittgenstein). We will model concepts as frames (according to Barsalou). The most important paradigmatic relation in KOS is hierarchy, which must be arranged into different classes: Hyponymy consists of taxonomy and simple hyponymy, meronymy consists of many different part‐whole‐relations. For practical application purposes, the transitivity of the given relation is very important. Unspecific associative relations are of little help to our focused applications and should be replaced by generalizable and domain‐specific relations. We will discuss the reflexivity, symmetry, and transitivity of paradigmatic relations as well as the appearance of specific semantic relations in the different kinds of KOS (folksonomies, nomenclatures, classification systems, thesauri, and ontologies). Finally, we will pick out KOS as a central theme of the Semantic Web.
Efficiency of scientific communication: A survey of world science
Authors: Lercher Aaron
Published: June 2010

The aim of this study was to measure the efficiency of the system by which scientists worldwide communicate results to each other, providing one measure of the degree to which the system, including all media, functions well. A randomly selected and representative sample of 246 active research scientists worldwide was surveyed. The main measure was the reported rate of “late finds”: scientific literature that would have been useful to scientists' projects if it had been found at the beginning of these projects. The main result was that 46% of the sample reported late finds (±6.25%, p0.05). Among respondents from European Union countries or other countries classified as “high income” by the World Bank, 42% reported late finds. Among respondents from low‐ and middle‐income countries, 56% reported late finds. The 42% rate in high‐income countries in 2009 can be compared with results of earlier surveys by Martyn (1964a, b, 1987). These earlier surveys found a rate of 22% late finds in 1963–1964 and a rate of 27% in 1985–1986. Respondents were also queried about search habits, but this study failed to support any explanations for this increase in the rate of late finds. This study also permits a crude estimate of the cost in time and money of the increase in late finds.
Center to limb variation of penumbral Stokes V profiles
Authors: Franz M. , Schlichenmaier R.
Published: June 2010

We investigated the horizontal and the vertical component of the Evershed flow (EF). To this end, we computed average Stokes V profiles for various velocity classes in penumbrae at different heliocentric angles. Our results show that for blueshifted profiles an additional lobe with the same polarity as the spot is present in the blue side of the average Stokes V profile. The amplitude of the additional lobe grows with increasing blueshift and with increasing heliocentric angle. For small redshifts, the profiles show an additional lobe with the opposite polarity as the spot on the red side of the average Stokes V profile. Even at disk center, the original polarity of the average Stokes V profile is reversed for strong redshifts. The transition between the different types of Stokes V profiles is continuous and indicates that not only the vertical, but also the horizontal EF is a magnetized stream of plasma in a magnetic background field (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Probability distribution functions for the Sun's magnetic field
Authors: Stenflo J.O.
Published: June 2010

Magnetoconvection structures the Sun's magnetic field cover a vast range of scales, down to the magnetic diffusion scale that is orders of magnitude smaller than the resolution of current telescopes. The statistical properties of this structuring are governed by probability density functions (PDFs) for the flux densities and by the angular distribution functions for the orientations of the field vectors. The magnetic structuring on sub‐pixel scales greatly affects the field properties averaged over the resolution element due to the non‐linear relation between polarization and magnetic field. Here we use a Hinode SOT/SP data set for the quiet Sun disk center to explore the complex behavior of the 6301–6302 Å Stokes line profile system and identify the observables that allow us to determine the distribution functions in the most robust and least model dependent way. The angular distribution is found to be strongly peaked around the vertical direction for large flux densities but widens with decreasing flux density to become isotropic in the limit of zero flux density. The noise‐corrected PDFs for the vertical, horizontal, and total flux densities all have a narrowly peaked maximum at zero flux density that can be fitted with a stretched exponential, while the extended wings decline quadratically (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Considerations for the next generation of solar telescopes: A systems approach to solar physics
Authors: Title A.
Published: June 2010

The exciting new high resolution images from the one meter Sunrise balloon telescope and the first images from the 1.6 meter Big Bear telescope together with the continuing data from the 1 meter Swedish Solar Observatory demonstrate the promise of the new generation of multimeter solar telescopes. While the promise of the new generation of telescopes is great the technical challenges to build them will require the efforts of a significant fraction of the solar community. In this talk I will emphasize the need for an integrated systems approach to the development of the telescope, its instruments, its software, and its operations and management structures. The experience of several decades of space mission has taught us a great deal about the value of planning mission development from the definition of the primary scientific objectives to the delivery of the data to the science community. Much of these lessons learned, often painfully, should provide guidance to those in developing the new telescope systems (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Advanced Technology Solar Telescope: A status report
Authors: Keil S.L. , Rimmele T.R. , Wagner J. , the ATST team
Published: June 2010

Magnetic fields control the inconstant Sun. The key to understanding solar variability and its direct impact on the Earth rests with understanding all aspects of these magnetic fields. The Advanced Technology Solar Telescope (ATST) has been design specifically for magnetic remote sensing. Its collecting area, spatial resolution, scattered light, polarization properties, and wavelength performance all insure ATST will be able to observe magnetic fields at all heights in the solar atmosphere from photosphere to corona. After several years of design efforts, ATST has been approved by the U.S. National Science Foundation to begin construction with a not to exceed cost cap of approximately $298M. Work packages for major telescope components will be released for bid over the next several months. An application for a building permit has been submitted (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Digital knowledge searching depth and individual creativity
Authors: Fei Yu‐Ming , Lin Chiuhsiang Joe
Published: June 2010

The research studies the relation of the learner's knowledge searching depth to his/her creativity when learner comes into contact with constructed knowledge. The digitized constructed knowledge environment has changed the way that knowledge has been presented through the books. By using information technology, learners now obtain knowledge rapidly in a computer‐learning environment. When a learner facing a project, the way he/she searches information to build up his/her knowledge becomes a subject which is well worthy a discussion. This research first recorded each student viewing the mission‐related instructional materials on computer pages in limited time. Followed by analyzing the route of subject's cognitive processes to study the relation of students who with different creativity performances to their knowledge searching depth. The participants are vocational high school students from the innovated project design class and their projects in this experiment are creative poster design. Researchers recorded and analyzed participants' viewing routes among supplied poster‐design instructional materials. Researchers expect to find out the relation by discussing the knowledge searching process between different creativity performers. © 2010 Wiley Periodicals, Inc. Comput Appl Eng Educ 21: 230–236, 2013
Cultural and ecological contexts of violent punishment and restraint of Negev Bedouin children: from understandings to interventions
Authors: Garb Yaakov , Goren Tsofit
Published: June 2010

Over recent decades we have become increasingly sensitised to the importance of considering the cultural and ecological contexts of child abuse. This paper illustrates the necessity for but also the complexity of doing so in practice, through reflection on some of the dilemmas faced by social work professionals encountering physical punishment and restraint of children among the Negev Bedouin. We describe several cases and reflect on two central challenges. First, we point to a significant grey area remaining between consensually unacceptable and consensually acceptable practices, and show how the evaluation of worrying incidents of this kind requires careful reading of the complex interplay of a variety of cultural and contextual factors which are sometimes not easily resolved. Second, we highlight the need for cultural competence not just in understanding but in intervening since cultural differences continue to be important—sometimes critically so—in the ways in which social work interventions are understood by and affect clients and communities. We offer a schema for intervention, distilled from decades of experience working in the Bedouin setting, which describes the kind of decision‐making processes a social worker might follow in this context. This is intended to guide practitioners, but also to be used more interactively and further evolved in discussion with parents and members of the Bedouin community on the one hand, and those shaping state child care policies and procedures on the other. Thus, our schema is a kind of boundary object—a shared instrument for assessment and dialogue in which both Bedouin and professional cultures can negotiate and renegotiate their caring for children at the interface between their different but intersecting worlds. Copyright © 2010 John Wiley & Sons, Ltd.
Origin, Microbiology, Nutrition, and Pharmacology of D‐Amino Acids
Authors: Friedman Mendel
Published: June 2010

Exposure of food proteins to certain processing conditions induces two major chemical changes: racemization of all L‐amino acids (LAAs) to D‐amino acids (DAAs) and concurrent formation of cross‐linked amino acids such as lysinoalanine (LAL). The diet contains both processing‐induced and naturally‐formed DAA. The latter include those found in microorganisms, plants, and marine invertebrates. Racemization impairs digestibility and nutritional quality. Racemization of LAA residues to their D‐isomers in food and other proteins is pH‐, time‐, and temperature‐dependent. Although racemization rates of LAA residues in a protein vary, relative rates in different proteins are similar. The nutritional utilization of different DAAs varies widely in animals and humans. Some DAAs may exert both adverse and beneficial biological effects. Thus, although D‐Phe is utilized as a nutritional source of L‐Phe, high concentrations of D‐Tyr in such diets inhibit the growth of mice. Both D‐Ser and LAL induce histological changes in the rat kidney. The wide variation in the utilization of DAAs is illustrated by the fact that, whereas D‐Meth is largely utilized as a nutritional source of the L‐isomer, D‐Lys is not. Similarly, although L‐CysSH has a sparing effect on L‐Meth when fed to mice, D‐CysSH does not. Since DAAs are consumed as part of their normal diet, a need exists to develop a better understanding of their roles in foods, microbiology, nutrition, and medicine. To contribute to this effort, this overview surveys our present knowledge of the chemistry, nutrition, safety, microbiology, and pharmacology of DAAs. Also covered are the origin and distribution of DAAs in food and possible roles of DAAs in human physiology, aging, and the etiology and therapy of human diseases.
Identification and Biochemical Characterization of Membranous Short‐Chain Polyglutamate from Bacillus subtilis
Authors: Kamei Tohru , Yamashiro Daisuke , Horiuchii Terumi , Minouchi Yutaka , Ashiuchi Makoto
Published: June 2010

It is generally thought that natural strains of Bacillus subtilis produce poly‐γ‐glutamate (PGA) as a large exopolymer (over 1,000 kDa) with high water solubility. However, extracellular PGA (ePGA) of B. subtilis is actually diverse in molecular size and configuration. In this study, we identified membranous PGA (mPGA) from both natural and domestic strains of B. subtilis. In contrast to ePGA, mPGA was relatively small and consistently l‐glutamate‐rich. Genetic analysis revealed that the pgs operon of B. subtilis is responsible for mPGA production as well as ePGA production. Biochemical analyses using the membranous fractions from B. subtilis ssp. chungkookjang indicated that the presence of zinc ions (Zn2+) affected both the membrane association of mPGA and in vitro synthesis (elongation) of PGA. Our observations highlighted three important factors that will affect the structural diversity of B. subtilis PGA, namely the occurrence of mPGA, the effects of Zn2+, and the configuration of glutamate substrate.
Natural Occurrence and Industrial Applications of d‐Amino Acids: An Overview
Authors: Martínez‐Rodríguez Sergio , Martínez‐Gómez Ana Isabel , Rodríguez‐Vico Felipe , Clemente‐Jiménez Josefa María , Las Heras‐Vázquez Francisco Javier
Published: June 2010

Interest in d‐amino acids has increased in recent decades with the development of new analytical methods highlighting their presence in all kingdoms of life. Their involvement in physiological functions, and the presence of metabolic routes for their synthesis and degradation have been shown. Furthermore, d‐amino acids are gaining considerable importance in the pharmaceutical industry. The immense amount of information scattered throughout the literature makes it difficult to achieve a general overview of their applications. This review summarizes the state‐of‐the‐art on d‐amino acid applications and occurrence, providing both established and neophyte researchers with a comprehensive introduction to this topic.
Configurational Assignment of D‐ and L‐Isovalines in Intact, Natural, and Synthetic Peptides by 2D‐NMR Spectroscopy
Authors: De Zotti Marta , Schievano Elisabetta , Mammi Stefano , Kaptein Bernard , Broxterman Quirinus B. , Singh Sheo B. , Brückner Hans , Toniolo Claudio
Published: June 2010

We investigated, by means of 2D‐NMR, the naturally occurring and chemically synthesized 16‐mer integramides A and B, which belong to a group of bioactive, fungal peptides (peptaibiotics), that are characterized by an abundance of Aib as well as D‐ and L‐Iva residues. The chemical shifts of the Cα‐alkyl groups in the Iva enantiomers depend on the α‐C‐atom configuration and on the helical screw sense of the peptides, the latter determined by CD. In the full‐length, right‐handed helical integramides, as well as in the partial sequences exploited for their total chemical syntheses, the γ‐Me H‐atoms of the Et side chain of the D‐Iva residues located near the C‐terminus are significantly more shielded (δ<0.90 ppm) than those of the L‐Iva residues (δ>0.95 ppm). The opposite behavior is observed for the left‐handed, synthetic, intermediate Z‐Aib‐L‐Hyp‐L‐Iva14‐D‐Iva15‐OtBu. Here, the γ‐Me H‐atoms of L‐Iva14 are more shielded (0.838 ppm) than those of D‐Iva15 (0.905 ppm). The chemical‐shift difference between the diastereotopic β‐CH2 H‐atoms of the Iva side chains in the right‐handed helical peptides is much larger for D‐Iva than for L‐Iva. For D‐Iva14/15, the values range from 0.38 to 0.63 ppm, whereas, for D‐Iva1, the value is in the range of 0.26–0.31 ppm. In each case, the difference is always larger for the d‐Iva than for the l‐Iva residues (which is always ≤0.19 ppm). Again, an opposite behavior is seen for the left‐handed tetrapeptide. Overall, our method enables the nondestructive assignment of the configuration of each Iva residue in peptides of known helical screw sense.
Computational Modeling of the Enolization in a Direct Mechanism of Racemization of the Aspartic Acid Residue
Authors: Takahashi Ohgi , Kobayashi Kana , Oda Akifumi
Published: June 2010

The rapid racemization of aspartic acid (Asp) residues in peptides and proteins is due mainly to the succinimide intermediate. However, there should be another mechanism for Asp racemization without intermediacy of the succinimide. The direct H‐atom abstraction from the C(α)‐atom that leads to the enol form of the Asp residue is one possibility. In another study, we have computationally predicted that the corresponding enolization in the succinimide intermediate occurs by assistance of two H2O molecules. In the present study, we, therefore, investigated the similar two‐H2O‐assisted enolization for an Asp‐containing model compound by the same computational method as before (B3LYP/6‐31+G**). Rather surprisingly, the activation barrier for the two‐H2O‐assisted enolization of the Asp residue (protonated form) was calculated to be almost equal to that for the corresponding succinimide. Therefore, an Asp residue is expected to be prone to enolization to almost the same degree as the corresponding succinimide form, and the ‘direct’ (i.e., non‐succinimide‐mediated) mechanism of Asp racemization may compete with the succinimide‐mediated mechanism.
Mammalian Peptide Isomerase: Platypus‐Type Activity Is Present in Mouse Heart
Authors: Koh Jennifer M. S. , Chow Stephanie J. P. , Crossett Ben , Kuchel Philip W.
Published: June 2010

Male platypus (Ornithorhynchus anatinus) venom has a peptidyl aminoacyl L/D‐isomerase (hereafter called peptide isomerase) that converts the second amino acid residue in from the N‐terminus from the L‐ to the D‐form, and vice versa. A reversed‐phase high‐performance liquid chromatography (RP‐HPLC) assay has been developed to monitor the interconversion using synthetic hexapeptides derived from defensin‐like peptide‐2 (DLP‐2) and DLP‐4 as substrates. It was hypothesised that animals other than the platypus would have peptide isomerase with the same substrate specificity. Accordingly, eight mouse tissues were tested and heart was shown to have the activity. This is notable for being the first evidence of a peptide isomerase being present in a higher mammal and heralds finding the activity in man.
Photolysis of rac‐Leucine with Circularly Polarized Synchrotron Radiation
Authors: Meierhenrich Uwe J. , Filippi Jean‐Jacques , Meinert Cornelia , Hoffmann Søren V. , Bredehöft Jan Hendrik , Nahon Laurent
Published: June 2010

Amino acids that pass the RNA machinery in living organisms occur in L‐configuration. The question on the evolutionary origin of this biomolecular asymmetry remains unanswered to this day. Amino acids were detected in artificially produced interstellar ices, and L‐enantiomer‐enriched amino acids were identified in CM‐type meteorites. This hints at a possible interstellar/circumstellar origin of the amino acids themselves as well as their stereochemical asymmetry. Based upon the current knowledge about the occurrence of circularly‐polarized electromagnetic radiation in interstellar environments, we subjected rac‐leucine to far‐UV circularly‐polarized synchrotron radiation. Asymmetric photolysis was followed by an analysis in an enantioselective GC/MS system. Here, we report on an advanced photolysis rate of more than 99% for leucine. The results indicate that high photolysis rates can occur under the chosen conditions, favoring enantioselective photolysis. In 2014, the obtained results will be reexamined by cometary mission Rosetta.
Amino Acid Ligand Chirality for Enantioselective Syntheses
Authors: Micskei Károly , Patonay Tamás , Caglioti Luciano , Pályi Gyula
Published: June 2010

Amino acids are attractive sources of chirality in stoichiometric or catalytic transition metal/organic chemistry. In spite of easy availability and other advantages, the application of these ligands is hindered by several problems. Now, at the dawn of emerging d‐amino acid biochemistry, efforts in this direction are becoming increasingly important. The results of research on application of amino acid ligands for transition‐metal reagents in organic syntheses are reviewed in the present work.
Structural Consideration of Mammalian D‐Aspartyl Endopeptidase
Authors: Kinouchi Tadatoshi , Fujii Noriko
Published: June 2010

D‐Aspartyl endopeptidase (DAEP) is a specific protease for D‐aspartic acid (D‐Asp)‐containing protein, which has been implicated in the pathogenesis of age‐related and misfolding diseases such as Alzheimer's disease. Therefore, DAEP would serve as a defensive system against the noxious D‐Asp‐containing protein. However, it is unclear how DAEP exerts its unique enzymatic function, since its higher‐order structure remains quite unsolved. In this study, we analyzed the conformation of purified DAEP from the mitochondrial membrane of mouse by atomic force microscopy the advantage of which is its ability to study biological macromolecules and even living organisms in an ambient air environment. DAEP formed a ring‐like structure with a diameter of ca. 40 nm. Our data suggest that DAEP topologically belongs to the AAA+ protease family such as proteasome, Lon, and mitochondrial membrane‐bound i‐/m‐AAA protease.
ChemInform Abstract: Relationships Among Ionic Lattice Energies, Molecular (Formula Unit) Volumes, and Thermochemical Radii
Authors: Jenkins H. Donald B. , Roobottom Helen K. , Passmore Jack , Glasser Leslie
Published: June 2010

ChemInform 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: Synthesis and High Temperature X‐Ray Diffraction Studies on the Perovskite SrLaMnRuO6.
Authors: Horikubi Takayoshi , Mori Takanori , Nonobe Hisao , Kamegashira Naoki
Published: June 2010

ChemInform 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: NMR and X‐Ray Absorption Study of Lithium Intercalation in Micro‐ and Nanocrystalline Anatase.
Authors: Luca Vittorio , Hanley Tracey L. , Roberts Nicholas K. , Howe Russell F.
Published: June 2010

ChemInform 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: Electrodeposition and Characterization of CdSexTe1‐x Semiconducting Thin Films.
Authors: Benamar E. , Rami M. , Fahoume M. , Chraibi F. , Ennaoui A.
Published: June 2010

ChemInform 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: Crystal and Exchange Fields in SmCo5 Studied by Inelastic Neutron Scattering.
Authors: Tils P. , Loewenhaupt M. , Buschow K. H. J. , Eccleston R. S.
Published: June 2010

ChemInform 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: Identification of an Unconventional Zinc Coordination Site in Anhydrous ZnxV2O5 Aerogels from X‐Ray Absorption Spectroscopy.
Authors: Giorgetti Marco , Passerini Stefano , Smyrl William H. , Berrettoni Mario
Published: June 2010

ChemInform 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: Perovskite Solid Solutions in the BaO—CuO—Y2O3—Nb2O5 System.
Authors: Bremer M. , Langbein H.
Published: June 2010

ChemInform 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: Cuprates with an Anion‐Deficient Perovskite Structure in the La2O3—SrO—CuO—CoO System: Synthesis and Study.
Authors: Bazuev G. V. , Chupakhina T. I. , Krasil'nikov V. N. , Kirsanov N. A.
Published: June 2010

ChemInform 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: Chiral C2‐Symmetric 2,4‐Disubstituted Azetidines as Chiral Ligands in the Addition of Diethylzinc to Aldehydes.
Authors: Shi Min , Jiang Jian‐Kang
Published: June 2010

ChemInform 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: Highly Diastereoselective Nucleophilic Addition of Organometallic Reagents to 2‐Pyrrolidinyl Nitrones: A Semiempirical Approach.
Authors: Merino Pedro , Franco Santiago , Gascon Jose M. , Merchan Francisco L. , Tejero Tomas
Published: June 2010

ChemInform 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: Reaction of E‐2‐Arylidene‐1‐indanones, Z‐Aurones, Z‐1‐Thioaurones and Z‐2‐Arylidene‐2,3‐dihydro‐1H‐indole‐3‐ones with Diazomethane.
Authors: Levai Albert , Patonay Tamas
Published: June 2010

ChemInform 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: Ring Transformations of Heterocyclic Compounds. Part 17. 2‐(2,4,6‐Triarylphenyl) Substituted Dihydro‐1H‐imidazolium, Dihydrothiazolium and Thiazolium Salts from 2‐Methyl Derivatives by Pyrylium and Thiopyrylium Ring Transformations.
Authors: Zimmermann Thomas
Published: June 2010

ChemInform 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: Synthesis of Some Thiazolidinones and 5‐Oxo‐imidazolines as Biologically Potent Agents.
Authors: Bhatt Akhil H. , Parikh Khyati A. , Parikh A. R.
Published: June 2010

ChemInform 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: Electrophile Induced Rearrangement of 1‐Alkynylaluminum Ate Complexes.
Authors: Debuigne Antoine , Gerard Julien , Hevesi Laszlo
Published: June 2010

ChemInform 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: Photoreaction of 1‐(o‐Acetoxyphenyl)‐2‐pentamethyldisilanyl Ethyne.
Authors: Shim Sang Chul , Park Seung Ki
Published: June 2010

ChemInform 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: Benzyltriphenylphosphonium Dichromate as a Mild Reagent for the Oxidation of Organic Compounds.
Authors: Hajipour Abdol Reza , Mohammadpoor‐Baltork Iraj , Niknam Kurosh
Published: June 2010

ChemInform 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: Efficient Photooxygenation of Olefins by a C60 Derivative Bearing an Organofluorine Tail.
Authors: Nagashima Hideo , Hosoda Koji , Abe Tomoaki , Iwamatsu Shoichi , Sonoda Takaaki
Published: June 2010

ChemInform 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: An Improved and Practical Sharpless Oxidation of Primary Alcohols to the Carboxylic Acids.
Authors: Prashad Mahavir , Lu Yansong , Kim Hong‐Yong , Hu Bin , Repic Iljan , Blacklock Thomas J.
Published: June 2010

ChemInform 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: Cerium(III) Chloride Mediated Regioselective Synthesis of Cyclic α‐Chloro‐α,β‐enones and α‐Chloro‐β‐hydroxy Ketones.
Authors: Garrido Montalban Antonio , Wittenberg Lars‐Oliver , McKillop Alexander
Published: June 2010

ChemInform 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: Synthesis of Organofluorine Compounds Using Ene Type Reaction of N‐(p‐Toluenesulfonyl)trifluoroacetaldehyde Imine.
Authors: Kumadaki Itsumaro , Jonoshita Shuichi , Harada Atsuhiro , Omote Masaaki , Ando Akira
Published: June 2010

ChemInform 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: An Easily Prepared, Air and Moisture Stable, Resin‐Bound Palladium Catalyst for Suzuki Cross‐Coupling Reactions.
Authors: Zhang Tony Y. , Allen Matthew J.
Published: June 2010

ChemInform 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: Remarkable Catalytic Activity of Me3Ga in the Alkylation of Hetero‐Substituted Epoxides with Alkynyllithiums.
Authors: Ooi Takashi , Morikawa Junko , Ichikawa Hayato , Maruoka Keiji
Published: June 2010

ChemInform 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: Lithiated (E)‐5‐Tosyl‐4‐pentenoic Acid: A New δ‐Acyldienyl Anion Equivalent.
Authors: Caturla Francisco , Najera Carmen , Varea Montserrat
Published: June 2010

ChemInform 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: A New Radical Vinylation Reaction of Iodides and Dithiocarbonates.
Authors: Bertrand Frederique , Quiclet‐Sire Beatrice , Zard Samir Z.
Published: June 2010

ChemInform 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: Regioselective Buta‐1,3‐dienylation of Aldehydes via Transmetallation of 2‐Tributylstannylbuta‐1,3‐diene.
Authors: Luo Meiming , Iwabuchi Yoshiharu , Hatakeyama Susumi
Published: June 2010

ChemInform 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: A New Two‐Step Synthesis of 2‐Alkylated 1,4‐Diketones and α‐Alkylated γ‐Keto Esters.
Authors: Ballini Roberto , Bosica Giovanna , Petrelli Lara , Petrini Marino
Published: June 2010

ChemInform 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: Enzyme‐Catalyzed Reactions. Part 35. Stereoselective Substitution of (R)‐2‐(Sulfonyloxy)nitriles with Sulfur Nucleophiles.
Authors: Effenberger Franz , Gaupp Sebastian
Published: June 2010

ChemInform 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: Ru(II)‐Catalyzed Asymmetric Cyclopropanation Using Chiral Diphenylphosphino(oxazolinyl)quinoline Ligands.
Authors: Park Sang‐Wook , Son Jeong‐Ho , Kim Sung‐Gon , Ahn Kyo Han
Published: June 2010

ChemInform 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: A Simple Synthesis of 1‐Methylcyclobutene.
Authors: Person Abigail L. , Thamattoor Dasan M.
Published: June 2010

ChemInform 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: Novel and Efficient Isomerization of Allylic Alcohols Promoted by a Tetrapropylammonium Perruthenate Catalyst.
Authors: Marko Istvan E. , Gautier Arnaud , Tsukazaki Masao , Llobet Antoni , Plantalech‐Mir Elena , Urch Christopher J. , Brown Stephen M.
Published: June 2010

ChemInform 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.