bluuebunny/crossref_metadata_2025_split huggingface dataset:
Multi-Block Copolymers in Selective Solvent: A Brownian Dynamics Simulation
Authors: Liu Yongsheng , Nie Huifen , Bansil Rama , Zhang Zhenli , Glotzer Sharon 
Published: April 2011

ABSTRACTWe performed Brownian Dynamics simulations of multiblock copolymers of A and B polymers in a solvent selective for the A block at a volume fraction of 20%. Tri-, penta- and heptabocks were simulated. Fourier transformation reveals micellar clusters arranged in a BCC lattice, in agreement with scattering experiments. The clusters were analyzed using a percolation approach and we observed larger clusters when the outermost block was in the poor solvent condition. The ratio of number of loops to bridges decreases as the number of blocks in the copolymer increases, as does the polydispersity. Increased penalty of looping as the number of blocks increases leads to a larger number of smaller clusters with more bridges.
Association Between Chronic Periodontitis and Vasculogenic Erectile Dysfunction
Authors: Sharma Anuj , Pradeep A.R. , Raju P. Arjun 
Published: April 2011

Background: Erectile dysfunction (ED) and chronic periodontitis (CP) share common risk factors. There is only one report on the association between ED and CP. Thus, the aim of this study is to find the association between vasculogenic ED and CP.Methods: A total of 70 patients (mean age: 35.3 ± 3.64 years) clinically diagnosed with ED were included in the study. They were given the Sexual Health Inventory for Men Questionnaire and subjected to colored penile Doppler ultrasound. Periodontal parameters of probing depth and periodontal attachment level were recorded. Five patients with ED and CP were selected randomly for cardiac color Doppler to assess the integrity.Results: Among the selected vasculogenic patients with ED, mild‐to‐moderate vasculogenic ED showed the highest prevalence, whereas prevalence for CP among all vasculogenic patients with ED was highest among severe ED (81.8%). Association of CP and vasculogenic ED was found to be correlated positively, but it showed no statistical significance. Two of five patients were found to have vascular insufficiency.Conclusions: It can be hypothesized that an association exists between vasculogenic ED and CP in young males. However, a large‐scale study with confounder analysis and a longitudinal follow‐up is warranted.
Pollutant concentrations from deciduous wood fuelled heat station
Authors: Juszczak Marek 
Published: April 2011

Pollutant concentrations from deciduous wood fuelled heat station
CO, NO, NO2 and dust concentrations from combustion of deciduous wood (birch, beech, lime-tree) logs and pellets in two heating boilers (15 and 25 KW), situated in a heat station were investigated. Time dependences of pollutant concentrations as well as the impact of temperature in the combustion chamber and oxygen concentration on pollutant concentrations were presented. Pollutant emission indices have been estimated.
Epigallocatechin Gallate Inhibits the HIV Reverse Transcription Step
Authors: Li Shenwei , Hattori Toshio , Kodama Eiichi N 
Published: April 2011

Background: Epigallocatechin gallate (EGCG), the most abundant catechin in green tea, has been reported to inhibit HIV-1 replication prior to its integration into host DNA via various proposed mechanisms; however, the specific main target(s) of EGCG remain unclear. In this study, we investigated a number of these proposed detailed mechanism(s) using a cell-based model. Methods: Multinuclear activation of galactosidase indicator assays were used for all experiments, including examination of the time of addition and the synergisms with a nucleoside reverse transcriptase inhibitor, 3′-azido-3′-deoxythymidine (AZT). Results: The experiments revealed that EGCG suppressed both HIV-1IIIB and HIV-2EHO infection in HeLa-CD4-LTR-β-gal cells, with relatively low 50% effective concentrations of 1.6 and 2.0 μM, respectively. The inhibitory profile of EGCG generated using a time-of-addition assay was identical to that of a non-nucleoside reverse transcriptase inhibitor (NNRTI), MKC-442. Furthermore, synergistic inhibition was observed in EGCG with AZT. Conclusions: Based on our findings, EGCG appears to act mainly as an allosteric reverse transcriptase inhibitor with mechanisms different from those of currently approved NNRTIs that directly interact with the NNRTI binding pocket. Thus, EGCG is a good candidate for use as an additional or supportive anti-HIV agent derived from natural plants.
Des droits civils au carnaval : anthropologie de l'espace public à Belfast
Authors: Bryan Dominic 
Published: April 2011

Résumé Cet article traite de la maîtrise et de l’utilisation de l’espace public, un trait caractéristique de la politique et de l’identité en Irlande du Nord, en milieu urbain notamment. L’auteur montre que l’utilisation de l’espace public dans le centre de Belfast a changé et semble témoigner d’une évolution des identités. Il conclut par une double interrogation. Une nouvelle identité civique, englobant les clivages politiques et ethniques, se développe-t-elle et, si oui, surmontera-t-elle la ségrégation résidentielle qui progresse dans Belfast et sa zone urbaine ?
Le cas des Bretons de Paris
Authors: Madec Annick 
Published: April 2011

Résumé Depuis la fin du xix e siècle, les migrants bretons à Paris sont l’objet d’écrits dans la presse et les discours politiques. Les intérêts des uns se superposent souvent à ceux des autres car ceux qui sont communément désignés comme les Bretons de Paris sont convoqués par une presse généralement engagée. À la moitié du xx e siècle, les sciences sociales et la littérature nous donnent à voir des réalités plus complexes. Cet article se propose de montrer que l’ensemble de ces constructions de la catégorie « migrants bretons à Paris » témoigne de façon exemplaire du fait que l’ethnicisation des rapports sociaux aboutit à gommer la pluralité et l’hétérogénéité des processus migratoires.
On a Local Theory of Asymptotic Integration for Nonlinear Differential Equations
Authors: Agarwal Ravi P. , Mustafa Octavian G. 
Published: April 2011

AbstractWe improve several recent results in the asymptotic integration theory of nonlinear ordinary differential equations via a variant of the method devised by J. K. Hale and N. Onuchic The results are used for investigating the existence of positive solutions to certain reaction-diffusion equations.
Univalently Induced, Closed Range, Composition Operators on the Bloch-type Spaces
Authors: Zorboska Nina 
Published: April 2011

AbstractWhile there is a large variety of univalently induced closed range composition operators on the Bloch space, we show that the only univalently induced, closed range, composition operators on the Bloch-type spaces Bα with α ≠ 1 are the ones induced by a disc automorphism.
Odontogenic Myxoma: A Case Report and Retrospective Analysis of Five Cases
Authors: Kale Tejraj Pundalik , Kotrashetti SM , Janardhan Sruthi 
Published: April 2011

ABSTRACT
Odontogenic myxoma is a rare, locally aggressive, benign tumor of the jaws representing less than 0.5% of all bone tumors and only 3 to 6% of odontogenic tumors. This article reviews five cases of the same treated in the Department of Oral and Maxillofacial Surgery, KLE's VK Institute of Dental Sciences between 1993 and 2010. One case of left maxillary sinus odontogenic myxoma in a 30-year-old female patient was of aggressive nature and has been described in detail in this report.
An Anion‐Conjugated Polyelectrolyte Designed for the Selective and Sensitive Detection of Silver(I)
Authors: Hu Yuqin , Xiao Yi , Huang Hongmei , Yin Dulin , Xiao Xiaoming , Tan Weihong 
Published: April 2011

AbstractA novel conjugated polyelectrolyte P1, having a meta‐substituted monopyridyl in the backbone, is designed and synthesized for Ag+ detection in aqueous solution. As a chemosensor, P1 shows high sensitivity, low detection limit, and excellent selectivity for Ag+ over other metal ions. The sensing mechanism is based on the specific interaction between Ag+ and the pyridyl group of P1. The aggregated state of the polymer in water can amplify its quenching efficiency.
Option hedging by an influential informed investor
Authors: Eyraud‐Loisel Anne 
Published: April 2011

This work extends the study of hedging problems in markets with asymmetrical information: an agent is supposed to possess an additional information on market prices, unknown to the common investor.The financial hedging problem for the influential and informed trader is modeled by a forward–backward stochastic differential equation, to be solved under an initial enlargement of the Brownian filtration. An existence and uniqueness theorem is proved under standard assumptions. The financial interpretation is derived, in terms of investment strategy for the informed and influential agent, as well as the conclusions concerning the general influenced market, in terms of completeness of the market. An example of such influenced and informed model is provided. Copyright © 2011 John Wiley & Sons, Ltd.
Anion‐Templated Assembly of Half‐Sandwich Rhodium‐Based Multinuclear Metallamacrocycles
Authors: Wang Guo‐Liang , Lin Yue‐Jian , Jin Guo‐Xin 
Published: April 2011

AbstractA series of half‐sandwich rhodium‐based metallamacrocycles with tetra‐ and hexanuclearities have been synthesized. They are assembled by linking the deprotonated 2,4‐diacetyl‐5‐hydroxy‐5‐methyl‐3‐(3‐pyridinyl)cyclohexanone (HL) ligand in the presence of counteranions. When the counteranion was the tetrahedral BF4− ion, tetranuclear metallamacrocycle [(Cp*RhL)4][BF4]4 (1 d) was formed. However, the larger OTf−, PF6−, and SbF6− counterions favored the formation of hexanuclear metallamacrocycles [(Cp*RhL)6⊃2OTf][OTf]4 (1 a), [(Cp*RhL)6⊃2PF6][PF6]4 (1 b), and [(Cp*RhL)6⊃2SbF6][SbF6]4⋅6CH3CN (1 c) when the reactions were performed under the same conditions. Single‐crystal X‐ray analysis indicated that, in the solid state, two counteranions were encapsulated in each belt‐like host molecule of hexanuclear metallamacrocycles 1 a, b, and c. Based on the results of 1H NMR analysis in methanol, the nuclearities of 1 a–c and the two encapsulated anions in each molecular cavity were maintained in solution. In addition, tetranuclear metallamacrocycle 1 d was converted into the hexanuclear metallamacrocycles 1 a′, b, and c after addition of the appropriate anion as its [NBu4]+ salt. The compound 1 a′ was characterized by single‐crystal X‐ray diffraction to have the formula [(Cp*RhL)6⊃2OTf][BF4]4⋅2MeOH⋅2H2O. From the interconversion of the hexanuclear metallamacrocycles, we have concluded that the hexanuclear belt‐like host in 1 a–c has an clear selectivity for larger anions, in the sequence SbF6−≈PF6−>OTf−>BF4−>Cl−.
Assessment of clinical and analytical performance characteristics of an HPV genotyping test
Authors: Schutzbank Ted E. , Ginocchio Christine C. 
Published: April 2011

AbstractHuman papillomavirus (HPV), the known cause of cervical cancer, is found in essentially all cervical cancer specimens. Infection with high‐risk HPV genotypes carries the greatest risk of viral persistence and the potential to develop precancerous lesions or cervical cancer. Identifying women infected with HPV 16 and/or 18, the two genotypes most commonly found in cervical cancer, helps further stratify women for either immediate referral to colposcopy or repeat cytological and HPV DNA testing in 12 months. Genotyping additional, less carcinogenic HPV types may be of limited clinical utility. Detection of multiple individual genotypes may capture a greater percentage of those with the potential to develop cervical disease. However, the advantage of individual detection must be weighed against the potential error of multiple measurements. In order for genotyping tests to have clinical benefit in patient management, the Centers of Medicare and Medicaid Services Divisions of Laboratory Services have set forth a rigorous clinical validation procedure. This procedure addresses the quality process, characteristics and specifications of the assay, comparison of the test/device to existing tests/devices, technical aspects, and other assurances that guarantee the test/device will meet all performance requirements of the US Food and Drug Administration (FDA). Currently, only the Cervista® HPV 16/18 genotyping test is approved by the FDA and recommended for clinical use in published guidelines. This manuscript reviews the current best practices for the development and use of HPV genotyping tests. Diagn. Cytopathol. 2011; © 2011 Wiley‐Liss, Inc.
Metastatic chromophobe renal cell carcinoma in pleural fluid cytology: Review of literature and report of a case
Authors: Davion Simone , Rohan Stephen , Nayar Ritu , Kulesza Peter 
Published: April 2011

AbstractThe majority of chromophobe renal cell carcinomas (CHRCC) are not aggressive, however, a subset are. The potential for metastasis makes recognition of CHRCC cells in cytologic preparations important for patient surveillance, management, and treatment. We report the detection of an aggressive form of CHRCC in pleural fluid cytology with histopathologic confirmation on subsequent pleural biopsy. Sarcomatoid portions of the original CHRCC, and the pleural metastasis, demonstrated loss of diffuse membranous staining with C‐KIT. Diagn. Cytopathol. 2012. © 2011 Wiley Periodicals, Inc.
Simultaneous Detection of Trace Cadmium(II) and Lead(II) Using an Unmodified Edge Plane Pyrolytic Graphite Electrode
Authors: Lu Min , Toghill Kathryn E. , Compton Richard G. 
Published: April 2011

AbstractWe report the sensitive simultaneous detection of cadmium(II) and lead(II) using an unmodified edge plane pyrolytic graphite (EPPG) electrode via linear sweep anodic stripping voltammetry (LSASV). Simultaneous additions of the heavy metals gave two well separated stripping peaks observed over two linear ranges, 20 to 200 µg L−1and 2 to 20 µg L−1. These gave detection limits of 0.3 µg L−1and 0.2 µg L−1for cadmium(II) and lead(II), respectively. The use of unmodified EPPG electrodes shows comparable performance to bismuth and mercury modified electrodes, and offers a simple and effective alternative to modified systems.
Preparation of a Preplated Bismuth Film on Pt Electrode and its Application for Determination of Trace Aluminum(III) by Adsorptive Stripping Voltammetry
Authors: Wang Hongmei , Yu Zhanglong , Wang Zhiliang , Hao Haijun , Chen Yongmei , Wan Pingyu 
Published: April 2011

AbstractAdsorptive stripping voltammetry (AdSV) was successfully explored for the determination of aluminum(III) in sodium carbonate solution (1 M) on a preplated bismuth film electrode (BiFE). Microscopic investigation displays that the morphology of the preplated bismuth film on Pt electrode relates to the plating conditions. The resulted perfect dendritic polycrystalline BiFE demonstrates better performance than the flake single crystal BiFE in AdSV determination of Al(III) in the presence of Eriochrome blue black R (EBBR). Under the selected conditions, the limit of detection(3σ) for Al(III) on flake and dendrite BiFE are 1.02×10−8 M and 5.6×10−10 M, respectively, and the current variation ratio of the coexistent ions(CaII, VV, SiIV, MgII, FeII and FeIII) is less than ±0.700 % in all cases.
The essential oil of Abies sibirica (Pinaceae) reduces arousal levels after visual display terminal work
Authors: Matsubara Eri , Fukagawa Mio , Okamoto Tsuyoshi , Ohnuki Koichiro , Shimizu Kuniyoshi , Kondo Ryuichiro 
Published: April 2011

ABSTRACTVolatile constituents from natural plants have sometimes been used for the treatment of mental disorders, but the efficacy of many plants has not been determined. Here, we investigated the effects of the essential oil of the Siberian fir tree, Abies sibirica (Pinaceae), on individuals during and after performance of a sustained task on a visual display terminal (VDT). Participants who breathed air containing the essential oil showed prolonged heartbeat intervals and increased theta activity as measured by electroencephalography in the recovery period after the VDT task, but not during the task. The volatile constituents emitted from the essential oil of A. sibirica through the odorant delivery system for 40 min were α‐pinene (80.4 µg), santene (3.1 µg), tricyclene (2.4 µg), camphene (24.2 µg), β‐pinene (2.6 µg), myrcene (1.0 µg), δ‐3‐carene (14.4 µg), limonene (3.8 µg), and bornyl acetate (1.0 µg). These results show that the essential oil of A. sibirica reduced arousal levels after the VDT task, and might be useful for the prevention of VDT‐related mental health disturbance. Copyright © 2011 John Wiley & Sons, Ltd.
Add‐on mirtazapine improves depressive symptoms in schizophrenia: a double‐blind randomized placebo‐controlled study with an open‐label extension phase
Authors: Terevnikov Viacheslav , Stenberg Jan‐Henry , Tiihonen Jari , Joffe Marina , Burkin Mark , Tchoukhine Evgueni , Joffe Grigori 
Published: April 2011

Depression is common in schizophrenia and worsens its course. The role of antidepressants for schizophrenic depression remains unclear. In this study, the efficacy of add‐on mirtazapine on depression in schizophrenia was explored in a subsidiary arm of a recent randomized controlled trial.Patients (n = 41) with chronic but stable schizophrenia and inadequate response to stable doses of different first‐generation antipsychotics were treated with add‐on mirtazapine 30 mg or placebo during a 6‐week double‐blind phase and with open‐label add‐on mirtazapine during a 6‐week extension phase. Efficacy measures were the Calgary Depression Scale for Schizophrenia (CDSS) and the Positive and Negative Syndrome Scale depression item.During the double‐blind phase, both measures' scores decreased significantly in the mirtazapine group but not in the placebo group (for the CDSS, 52.0% vs 19.6%, respectively). During the open‐label phase, both groups demonstrated significant improvements. In between‐group comparison, a trend favoring mirtazapine did not reach statistical significance. The changes in the CDSS correlated positively with those in the Positive and Negative Syndrome Scale negative, positive and total (sub)scales for mirtazapine‐treated patients during the double‐blind phase.Depressed patients with schizophrenia may benefit from mirtazapine–first‐generation antipsychotics combination, with no increased risk for psychosis. However, more studies are needed. Copyright © 2011 John Wiley & Sons, Ltd.
Fibroblast growth factor 23 regulates renal 1,25-dihydroxyvitamin D and phosphate metabolism via the MAP kinase signaling pathway in Hyp mice
Authors: Ranch Daniel , Zhang Martin YH , Portale Anthony A , Perwad Farzana 
Published: April 2011

Abstract
In X-linked hypophosphatemia (XLH) and in its murine homologue, the Hyp mouse, increased circulating concentrations of fibroblast growth factor 23 (FGF-23) are critical to the pathogenesis of disordered metabolism of phosphate (Pi) and 1,25-dihydroxyvitamin D [1,25(OH)2D]. In this study, we hypothesized that in Hyp mice, FGF-23-mediated suppression of renal 1,25(OH)2D production and Pi reabsorption depends on activation of mitogen-activated protein kinase (MAPK) signaling. Wild-type and Hyp mice were administered either vehicle or the MEK inhibitor PD0325901 (12.5 mg/kg) orally daily for 4 days. At baseline, the renal abundance of early growth response 1 (egr1) mRNA was approximately 2-fold greater in Hyp mice than in wild-type mice. Treatment with PD0325901 greatly suppressed egr1 mRNA abundance in both wild-type and Hyp mice. In Hyp mice, PD0325901 induced an 8-fold increase in renal 1α-hydroxylase mRNA expression and a 4-fold increase in serum 1,25(OH)2D concentrations compared with vehicle-treated Hyp mice. Serum Pi levels in Hyp mice increased significantly after treatment with PD0325901, and the increase was associated with increased renal Npt2a mRNA abundance and brush-border membrane Npt2a protein expression. These findings provide evidence that in Hyp mice, MAPK signaling is constitutively activated in the kidney and support the hypothesis that the FGF-23-mediated suppression of renal 1,25(OH)2D production and Pi reabsorption depends on activation of MAPK signaling via MEK/ERK1/2. These findings demonstrate the physiologic importance of MAPK signaling in the actions of FGF-23 in regulating renal 1,25(OH)2D and Pi metabolism. © 2011 American Society for Bone and Mineral Research
Heisenberg — der Chemielehrer und Drogenkoch
Authors: Osterath Brigitte 
Published: April 2011

AbstractIn der US‐amerikanischen Fernsehserie “Breaking Bad” gründet ein Chemielehrer ein Start‐up der besonderen Art: Mit einem ehemaligen Schüler synthetisiert er N‐Methylamphetamin und verkauft die Aufputschdroge im großen Stil. Aber die Drogenszene hat andere Regeln als die Chemieindustrie.
Beilstein und Gmelin in Reaxys vereint
Authors: Vogt Jürgen 
Published: April 2011

AbstractDer Server Reaxys enthält in einer gemeinsamen Struktur die Beilstein‐ und Gmelin‐Nachschlagewerke sowie eine Chemie‐Patentdatenbank. Suchen lässt sich nach Reaktionen wie nach chemischen, physikalischen, spektroskopischen, pharmakologischen und ökotoxikologischen Eigenschaften.
Proteomic analysis of the coagulation reaction in plasma and whole blood using PROTOMAP
Authors: Niessen Sherry , Hoover Heather , Gale Andrew J. 
Published: April 2011

AbstractProteases are critical in many physiological processes and the human genome encodes for 566 predicted proteolytic enzymes. Therefore, there is great interest in identifying and characterizing physiologic protease–substrate relationships. The coagulation cascade is a well‐described network of serine proteases. However, new interactions of the coagulation cascade with other biological pathways have been discovered only recently. Therefore, we hypothesized that a non‐biased protease degradomics analysis of the physiologic coagulation reaction would identify new interactions between the coagulation cascade and other pathways. We used the recently described PROTOMAP technique to profile the complete coagulation degradome. This analysis detected virtually all of the proteins of the coagulation cascade and identified a majority of the expected proteolytic events, suggesting significant coverage of the coagulation degradome. Multiple potential new proteolytic cleavages were detected, including two of transmembrane proteins that may be shed from the surface of blood cells. In addition, this analysis was able to identify several new potentially secreted proteins. A significant majority of the newly identified events were of proteins involved in innate immunity (complement and inflammation). This highlights potential new areas of crosstalk between these linked systems. Future studies will elucidate the details and functional consequences of these proteolytic events during coagulation.