bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Synthesis and anti‐HIV Activity of New Fused Chromene Derivatives Derived from 2‐Amino‐4‐(1‐naphthyl)‐5‐oxo‐4H,5H‐pyrano [3,2‐c]chromene‐3‐carbonitrile.
Authors: Al‐Masoudi Najim A. , Mohammed Hamid H. , Hamdy Aws M. , Akrawi Omer A. , Eleya Nadi , Spannenberg Anke , Pannecouque Christophe , Langer Peter 
Published: July 2013

AbstractNew chromene derivatives (III), (IV), and (X) inhibit HIV‐1 and HIV‐2 replication in cell cultures, with compound (III) being the most active one.
ChemInform Abstract: Iron‐Catalyzed Cross‐Coupling of Electron‐Deficient Heterocycles and Quinone with Organoboron Species via Innate C—H Functionalization: Application in Total Synthesis of Pyrazine Alkaloid Botryllazine A.
Authors: Singh Parvinder Pal , Aithagani Sravan Kumar , Yadav Mahipal , Singh Varun Pratap , Vishwakarma Ram A. 
Published: July 2013

AbstractThis reaction works under open flask conditions.
ChemInform Abstract: Visible Light Photooxidative Cyclization of Amino Alcohols to 1,3‐Oxazines.
Authors: Mathis Cheryl L. , Gist Brandi M. , Frederickson Conerd K. , Midkiff Katie M. , Marvin Christopher C. 
Published: July 2013

AbstractThe process proceeds through formation of iminium ions which are trapped by the internal OH group.
ChemInform Abstract: Copper‐Catalyzed Tandem C—C/C—O Bond‐Forming Reactions of ortho‐Halo‐β‐chlorostyrenes with Ketones: Synthesis of 4‐Trifluoromethylbenzoxepines.
Authors: Sun Lei‐Lei , Hu Bo‐Lun , Tang Ri‐Yuan , Deng Chen‐Liang , Zhang Xing‐Guo 
Published: July 2013

AbstractThe annulation reaction involves the direct α‐alkenylation of ketones (II) and a subsequent intramolecular O‐arylation process affording title compounds (III) in moderate to good yields.
ChemInform Abstract: P‐Directed Borylation of Phenols.
Authors: Cazorla Clement , De Vries Timothy S. , Vedejs Edwin 
Published: July 2013

AbstractInternal borylation occurs upon activation of aryl di‐isopropylphosphinite boranes with HNTf2 giving heterocyclic intermediates leading either to (II) or phenolic potassium salts (VI).
ChemInform Abstract: Lower and Upper Rim Modified Derivatives of 1,3,5‐Triaza‐7‐phosphaadamantane: Coordination Chemistry and Applications in Catalytic Reactions in Water
Authors: Gonsalvi Luca , Guerriero Antonella , Hapiot Frederic , Krogstad Donald A. , Monflier Eric , Reginato Gianna , Peruzzini Maurizio 
Published: July 2013

AbstractReview: 30 refs.
Secure similarity coefficients computation for binary data and its extensions
Authors: Zhang Bo , Zhang Fangguo 
Published: July 2013

SUMMARYSimilarity measures play an important role in classification problems, cluster analysis, and identification issues. This paper studies the secure similarity coefficients computation in the two‐party setting. Recently, a privacy‐preserving similarity coefficients protocol for binary data was proposed by Wong and Kim (Computers and Mathematics with Application 2012). We point out that their protocol is not secure, even in the semi‐honest model. In their protocol, the client can retrieve the inputs of the server without deviating from the protocol. Next, we propose a secure similarity coefficients computation protocol in the presence of malicious adversaries, which solves the same similarity coefficients functionality as that proposed by Wong and Kim. Meanwhile, we prove the protocol secure against the malicious adversaries by using the standard simulation‐based security definitions for secure two‐party computation. Also several extensions of our protocol for settling other specific problems are discussed. At last, we present a protocol computing the similarity coefficients with better privacy by using the secure integer division on ciphertexts. Copyright © 2013 John Wiley & Sons, Ltd.
Differences in Cucurbit[7]uril: Surfactant Complexation Promoted by the Cationic Head Group
Authors: Pessêgo Márcia , Da Silva José P. , Moreira José A. , García‐Río Luis 
Published: July 2013

AbstractThe formation of host/guest complexes between cucurbit[7]uril (CB7) and tetradecyltrialkylammonium bromide surfactants with trimethyl (C14TMA+), triethyl (C14TEA+), and tripropyl (C14TPA+) head groups was studied. Complexation was studied by ESI‐MS, isothermal titration calorimetry (ITC), and NMR spectroscopy. The structure of the complexes is strongly dependent on the surfactant head group. Both 1:1 and 2:1 complexes are formed with all cationic surfactants. The magnitude of the K1:1 binding constants decreases with the alkyl length of the head group, whereas that of the K2:1 binding constants is independent of the nature of the surfactant head group. Distinct structures were found for the 1:1 and 2:1 complexes. C14TMA+ and C14TPA+ surfactants form 1:1 inclusion complexes that comprise the head group close to the CB7 portal and 2:1 external complexes with both host molecules near the head group. The 1:1 complexes between C14TEA+ and CB7 showed that the head group was centered inside the CB7 cavity, whereas in the 2:1 complex the second molecule of CB7 was located at the end of the main alkyl chain.
How Customer Support for Corporate Social Responsibility Influences the Image of Companies: Evidence from the Banking Industry
Authors: Pérez Andrea , del Bosque Ignacio Rodríguez 
Published: July 2013

ABSTRACTThe authors of this paper carry out two studies to determine whether customer support for corporate social responsibility (CSR support) influences the way customers form their perceptions of CSR practices in the banking industry. Study 1 consists of a cluster analysis which provides information about four customer groups classified according to their support for CSR practices. These groups are labelled as the ‘low support’, ‘social orientation’, ‘individual benefit’, and ‘high support’ clusters. In Study 2, the authors test whether differences exists in the way the four clusters process their CSR perceptions. The results confirm the relevance of motivational attribution when socially oriented and highly involved customers evaluate CSR. Based on this information, the authors provide several recommendations for managers to effectively design and communicate their CSR strategies. Copyright © 2013 John Wiley & Sons, Ltd and ERP Environment
Studies of Reversible Conjugate Additions
Authors: Zhong Ye , Xu Yufang , Anslyn Eric V. 
Published: July 2013

AbstractBenzalcyanoacetamides were designed and synthesized as reversible thiol conjugate addition acceptors. These thia‐conjugate additions can rapidly and reversibly achieve equilibrium under aqueous conditions at neutral pH. Kinetic studies show that electron‐withdrawing groups at the 4‐position of the phenyl ring of the benzalcyanoacetamides promote the conjugate addition at equilibrium. Dynamic thiol exchange of these conjugate acceptors is faster than singly activated α,β‐unsaturated carbonyl compounds. These thia‐conjugate additions can be assembled as potentially useful components in dynamic combinatorial chemistry.
Unstructured finite element method for the solution of the Boussinesq problem in three dimensions
Authors: Smethurst C.A. , Silvester D.J. , Mihajlović M.D. 
Published: July 2013

SUMMARYWe present a numerical method for the monolithic discretisation of the Boussinesq system in three spatial dimensions. The key ingredients of the proposed methodology are the finite element discretisation of the spatial part of the problem using unstructured tetrahedral meshes, an implicit time integrator, based on adaptive predictor–corrector scheme (the explicit second‐order Adams–Bashforth method with the implicit stabilised trapezoid rule), and a new preconditioned Krylov subspace solver for the resulting linearised discrete problem. We test the proposed methodology on a number of physically relevant cases, including laterally heated cavities and the Rayleigh–Bénard convection. Copyright © 2013 John Wiley & Sons, Ltd.
Strategies to reduce long‐term postchemoradiation dysphagia in patients with head and neck cancer: An evidence‐based review
Authors: Paleri Vinidh , Roe Justin W. G. , Strojan Primož , Corry June , Grégoire Vincent , Hamoir Marc , Eisbruch Avraham , Mendenhall William M. , Silver Carl E. , Rinaldo Alessandra , Takes Robert P. , Ferlito Alfio 
Published: July 2013

BackgroundSwallowing dysfunction following chemoradiation for head and neck cancer is a major cause of morbidity and reduced quality of life. This review discusses 3 strategies that may improve posttreatment swallowing function.MethodsThe literature was assessed by a multiauthor team that produced evidence‐based recommendations.Results(1) Prospective and randomized studies with small cohorts show a trend toward benefits for a preventative exercise program addressing oral and pharyngeal structures. (2) Prospective and retrospective data indicate that better swallowing outcomes are likely when nasogastric tubes are used in preference to gastrostomy tubes to supplement enteral nutrition during chemoradiation. (3) Emerging prospective data with mature results on small cohorts support the hypothesis that radiation dose restriction to swallowing structures using intensity‐modulated radiation therapy techniques leads to better swallow outcomes.ConclusionsThis study discusses 3 strategies for improving swallow‐related outcomes in patients undergoing chemoradiation for head and neck cancer and identifies areas for future research. © 2013 Wiley Periodicals, Inc. Head Neck 36: 431–443, 2014
Axis I Psychopathology and the Perpetration of Intimate Partner Violence
Authors: Crane Cory A. , Hawes Samuel W. , Devine Susan , Easton Caroline J. 
Published: July 2013

ObjectivesInitial evidence suggests that individuals with specific psychiatric conditions may perpetrate intimate partner violence (IPV) at greater frequency than nondiagnosed comparison samples. The present investigation examined the relationship between IPV and specific clinical diagnoses.MethodThe current investigation utilized data provided by 190 (34% female) adult offenders during court‐mandated substance use evaluations to investigate the incidence of past‐year IPV among samples of dually diagnosed (bipolar, posttraumatic stress disorder [PTSD], and attention deficit‐hyperactivity disorder [ADHD]) clients relative to 3 comparison samples matched on substance use and sociodemographic variables.ResultsBipolar and PTSD diagnosed participants were more likely to perpetrate IPV than matched comparison and ADHD participants. Bipolar and PTSD diagnosed participants were equally likely to perpetrate IPV, as were ADHD and matched comparison samples.ConclusionsThe frequency of IPV perpetration among bipolar and PTSD diagnosed clients may complicate interpersonal and relationship functioning. The development of integrated treatments for IPV and underlying psychopathology is recommended.
Modeling the microwave single‐scattering properties of aggregate snowflakes
Authors: Nowell Holly , Liu Guosheng , Honeyager Ryan 
Published: July 2013

AbstractA new snowflake aggregation model is developed to study single‐scattering properties of aggregate snowflakes. Snowflakes are generated by random aggregation of six‐bullet rosettes constrained by size‐density relationships derived from previous field observations. Due to random generation, aggregates may have the same size or mass, yet different morphology allowing for a study into how shape influences their scattering. Single‐scattering properties of the aggregates were investigated using discrete dipole approximation (DDA) at 10 frequencies. Results were compared to those of Mie theory for solid and soft spheres (density 10% that of solid ice) and to T‐matrix results for solid and soft spheroidal cases with aspect ratios of 0.8. Above size parameter 0.75, neither the solid nor the soft sphere and spheroidal approximations accurately represented the DDA results for aggregates. Asymmetry and the normalized scattering and backscattering cross sections of the aggregates fell between the soft and solid spherical and spheroidal approximations. This implies that evaluating snow scattering properties using realistic shapes, such as the aggregates created in this study, is of paramount importance. Concerning the morphology of the aggregate snowflakes created in this study, the dependence of their single‐scattering properties on each aggregate's detailed structure seemed of secondary importance. Using normalized standard deviation as a measure of relative uncertainty, it is found that the relative uncertainty in backscattering arising from the different morphologies caused by random aggregation is typically ~15% for individual particles and ~18% when integrated over size distributions. Relative uncertainties for other single‐scattering parameters are less.
The dramatic climate warming in the Qaidam Basin, northeastern Tibetan Plateau, during 1961–2010
Authors: Wang Xuejia , Yang Meixue , Liang Xiaowen , Pang Guojin , Wan Guoning , Chen Xiaolei , Luo Xiaoqing 
Published: July 2013

ABSTRACTOn the basis of meteorological station records during 1961–2010, we investigate the variations of temperature and precipitation in the Qaidam Basin. Results show that climate warming is significant in the region of Qaidam Basin over the past 50 years, with an average warming rate of 0.53 °C 10a−1. The largest and smallest warming rate happened at Mangya station (0.89 °C 10a−1) and Lenghu station (0.24 °C 10a−1), respectively. Seasonal warming was greatest in winter at eight meteorological stations, ranging from 0.43 °C 10a−1 (Lenghu station) to 1.01 °C 10a−1 (Delingha station). Since 1961, the annual precipitation has increased with a rate of 7.38 mm 10a−1. Seasonal precipitation mainly increased in summer (4.02 mm 10a−1). The maximum precipitation increase occurred at Delingha station (25.09 mm 10a−1) and the minimum at Lenghu station (0.10 mm 10a−1). The elevation dependency of warming trends is unremarkable because most of the stations are located at lower altitudes. It is suggested that sunshine duration is related to the tendencies of temperature increase at different stations. Pollution emissions from industrial processes (i.e. brown clouds) and urbanization are the main factors contributing to the warming climate. Furthermore, the predominant weakening of zonal wind speed over the Tibetan Plateau resulted from the global warming also contributes to the climate warming in the Qaidam Basin. Consequently, the warming rate in the Qaidam Basin is much higher than in other regions over the Tibetan Plateau. The Qaidam Basin is thus considered to be the most susceptible region with the most significant warming in the Tibetan Plateau.
Polymerization Mechanism of MMA in the Presence of 1,1‐Diphenylethylene
Authors: Zhao Minjian , Chen Dong , Shi Yan , Yang Wantai , Fu Zhifeng 
Published: July 2013

AbstractA suitable controlled polymerization mechanism of methyl methacrylate (MMA) in the presence of 1,1‐diphenylethylene (DPE) is presented. The PMMAs with different molecular weight are prepared and the structures of the polymers are characterized by NMR spectroscopy and ESI‐Q‐TOF‐MS. The good agreements between the theoretical and the experimental m/z values of PMMA samples acquired by ESI‐Q‐TOF‐MS provide positive evidence to confirm that only one DPE unit is incorporated into the PMMA macromolecule chains. TEMPO is used as a radical scavenger to capture the active free radicals generated by the scission of the DPE‐containing PMMA polymer. The molecular weight of the DPE‐containing PMMA decreases dramatically after the reaction with TEMPO; meanwhile, the DPE molecule is split from the DPE‐containing PMMA.
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Social Stressors at Work, Sleep Quality and Psychosomatic Health Complaints—A Longitudinal Ambulatory Field Study
Authors: Pereira Diana , Elfering Achim 
Published: July 2013

AbstractThere is increasing evidence that occupational stress increases psychosomatic health complaints in the long run. However, the underlying mechanisms are still unclear. The present longitudinal actigraphy field study investigated the role of sleep quality—objectively assessed sleep‐onset latency, sleep efficiency and sleep fragmentation, and subjectively assessed sleep quality—as a mediator in the relationship between stressful work conditions at time 1 and psychosomatic health complaints at time 2. A longitudinal hierarchical regression analysis revealed that social stressors at work were positively related to objectively assessed sleep fragmentation and to psychosomatic health complaints. Moreover, objectively assessed sleep fragmentation mediated the effect of social stressors at work on psychosomatic health complaints. Contrary to our expectations, social stressors at work were not related to other sleep quality parameters (i.e. sleep‐onset latency, sleep efficiency and subjectively assessed sleep quality) during follow‐up. Sleep fragmentation is discussed as an important consequence of social stressors at work that increase the risk of psychosomatic health complaints in the long run. Copyright © 2013 John Wiley & Sons, Ltd.
Synthesis, Characterization, and Chemical Vapor Transport of Solid Solutions in the MgMoO4‐NiMoO4 System
Authors: Steiner Udo , Drieschner Tobias , Feller Jörg 
Published: July 2013

AbstractTwo solid solution series exist in the system MgMoO4‐NiMoO4. The α‐Ni1–yMgyMoO4 solution series, isostructural to α‐NiMoO4, is thermodynamically stable at ambient conditions for compositions between 0 % and about 75 % magnesium content. The solution series β‐Mg1–xNixMoO4, isostructural to MgMoO4 and the high temperature β modification of NiMoO4, is thermodynamically stable at ambient conditions for compositions with < 25 % nickel content. A complete solid solution series β‐Mg1–xNixMoO4 exists at higher temperatures (> 823 K). The transition temperature for the α → β transition decreases with increasing magnesium content. The coexistence of both polymorphs at room temperature in samples with a wide range of composition is a result of the kinetic inhibition of the phase transition β → α. The chemical vapor transport of β‐Mg1–xNixMoO4 solid solutions with chlorine was investigated. Crystals with a nickel content up to 25 % were synthesized in temperature gradients 1273 K → 1223 K or 1273 K → 1173 K. Deposited nickel richer crystals are destroyed during cooling down to room temperature due to the phase transition. The observed distinctive nickel enrichment during the transport process is in good agreement with predictions by thermodynamic modeling.
Infinite Linear Zinc Chains in AAu4Zn2 (A = Ca, Ce, Pr, Nd) with YbAl4Mo2 Type Structure
Authors: Gerke Birgit , Niehaus Oliver , Hoffmann Rolf‐Dieter , Pöttgen Rainer 
Published: July 2013

AbstractThe intermetallic zinc compounds AAu4Zn2 (A = Ca, Ce, Pr, Nd) were obtained by induction melting of the elements in sealed tantalum tubes. The samples were studied by X‐ray diffraction on powders. The structures of the calcium and the cerium compound were refined from single crystal diffraction data: YbAl4Mo2 type, I4/mmm, a = 692.8(1), c = 527.6(1) pm, wR2 = 0.0304, 244 F2 values and 11 variables for CaAu4.08Zn1.92 and a = 699.6(1), c = 531.2(1) pm, wR2 = 0.1152, 186 F2 values and 10 variables for CeAu4Zn2. The 4d site of the calcium compound shows small mixed Zn/Au occupancy. The AAu4Zn2 structures consist of three‐dimensional gold networks (272–286 pm Au–Au in CeAu4Zn2), which are penetrated by linear infinite zinc chains (266 pm Zn–Zn in CeAu4Zn2) that extend along the c axis. The calcium or rare earth atoms fill Au12 cavities within the networks. Temperature dependent magnetic susceptibility measurements reveal Pauli paramagnetism for CaAu4Zn2 and Curie‐Weiss paramagnetism for the cerium, praseodymium, and neodymium compound, respectively. No magnetic ordering was evident down to 2.5 K. The static intermediate‐valent compound Ce2RuZn4 crystallizes with a superstructure of CeAu4Zn2 (klassengleiche subgroup P4/nmm) with a different but fully ordered substitution on the transition metal sites. This structural relationship is discussed on the basis of a group‐subgroup scheme.
Klinik und Genetik der spastischen Spinalparalysen
Authors: Schöls L. , Schlipf N. , Söhn A. S. , Bauer P. 
Published: July 2013

Zusammenfassung
Auch wenn die Liste der Paraplegiegenorte schon vor der Ära des Next-Generation-Sequencing (NGS) umfangreich war, ist die Zahl der unlängst entdeckten neuen Paraplegiegene kaum noch zu übersehen. Derzeit sind 52 Genorte für die hereditären spastischen Spinalparalysen (HSP) vergeben und dabei 35 HSP-Gene identifiziert worden. Aufgrund der großen phänotypischen Überschneidung zwischen vielen HSP-Formen ist eine klinisch geführte Diagnostik oft nicht zielführend. Mit Abstand die häufigste Form der HSP ist die spastische Paraplegie 4 (SPG4) mit SPAST-Mutationen, die sowohl bei dominanten als auch bei scheinbar sporadischen HSP-Formen nachgewiesen werden. Hier reicht eine Gensequenzierung zur Diagnostik nicht aus, da in 10–20 % der SPG4-Fälle eine Deletion ganzer Exons vorliegt. Eine Bestimmung seltenerer HSP-Formen gelingt am effizientesten durch NGS-basierte Paneldiagnostik oder „whole exome sequencing“ (WES).
Genetik des essenziellen Tremors
Authors: Kuhlenbäumer G. 
Published: July 2013

Zusammenfassung
Der essenzielle Tremor (ET) ist mit einer Lebenszeitprävalenz von ungefähr 1 % eine der häufigsten Bewegungsstörungen. ET-Patienten leiden v. a. unter einem Halte- und Aktionstremor der Arme, der die Feinmotorik stark behindern kann. Die Frage, ob bei einem Teil der ET-Patienten weitere Symptome, wie z. B. leichte kognitive Defizite und eine Depression zum Krankheitsbild gehören, wird kontrovers diskutiert. Mehr als 50 % aller ET-Patienten haben eine positive Familienanamnese. In vielen Familien ist die Segregation der Krankheit mit einem autosomal-dominanten Erbgang vereinbar. Kürzlich konnten Mutationen im Fused-in-sarcoma(FUS)-Gen als eine mögliche Ursache des monogenen ET identifiziert werden. In den meisten Fällen ist der ET genetisch komplex. Zwillingsstudien deuten auf eine sehr hohe Erblichkeit des ET hin. In 2 relativ kleinen genomweiten Assoziationsstudien (GWAS) wurden Risikovarianten im Leucine-rich-repeat-and-immunoglobulin-domain-containing-1(LINGO1)-Gen identifiziert, welches eine Rolle bei der Neuroregeneration spielt. Risikovarianten wurden auch im Solute-carrier-family-1-member-2(SLC1A2)-Gen, welches für den wichtigsten Glutamat-reuptake-Transporter im Gehirn kodiert, gefunden.
Patients with 47, XXX karyotype who experienced premature ovarian failure (POF): two case reports
Authors: Sugawara Nobuo , Maeda Machiko , Manome Tomomi , Nagai Rie , Araki Yasuhisa 
Published: July 2013

AbstractPurposePubertal onset and sexual development are usually normal in 47, XXX individuals; however, we report two cases of premature ovarian failure (POF) in infertile women with trisomy X.MethodsChromosome analysis was conducted with G‐banding and fluorescence in situ hybridization using X‐ and Y‐bearing probe. Hormonal administration was primarily Kaufmann's treatment or long‐term estradiol treatment, followed by withdrawal bleeding from estrogen and progesterone.ResultsTwo patients with trisomy X, aged 31 (patient 1) and 27 years (patient 2), were diagnosed with POF due to hypergonadotropic hypogonadism. Their ovaries were small. Patient 1 had a FSH level of 44.6 mIU/ml and patient 2 had a FSH level of 74.6 mIU/ml. In patient 1, with Kaufmann's treatment, the FSH decreased to 13.5 mIU/ml; however, follicle growth did not occur following HMG stimulation. In patient 2, FSH did not decrease despite Kaufmann's treatment; therefore, she was given a GnRH agonist and her FSH level decreased to 7.1 mIU/ml. However, her ovaries never responded to HMG stimulation.ConclusionWe report on two patients with a 47, XXX karyotype who became infertile due to POF. We recommend that when a patient is diagnosed with trisomy X, the possibility of POF must be strongly considered.