bluuebunny/crossref_metadata_2025_split huggingface dataset:
Meta‐analysis of the impact of positive psychological capital on employee attitudes, behaviors, and performance
Authors: Avey James B. , Reichard Rebecca J. , Luthans Fred , Mhatre Ketan H. 
Published: June 2011

AbstractThe positive core construct of psychological capital (or simply PsyCap), consisting of the psychological resources of hope, efficacy, resilience, and optimism, has recently been demonstrated to be open to human resource development (HRD) and performance management. The research stream on PsyCap has now grown to the point that a quantitative summary analysis of its impact on employee attitudes, behaviors, and especially performance is needed. The present meta‐analysis included 51 independent samples (representing a total of N = 12,567 employees) that met the inclusion criteria. The results indicated the expected significant positive relationships between PsyCap and desirable employee attitudes (job satisfaction, organizational commitment, psychological well‐being), desirable employee behaviors (citizenship), and multiple measures of performance (self, supervisor evaluations, and objective). There was also a significant negative relationship between PsyCap and undesirable employee attitudes (cynicism, turnover intentions, job stress, and anxiety) and undesirable employee behaviors (deviance). A sub‐analysis found no major differences between the types of performance measures used (i.e., between self, subjective, and objective). Finally, the analysis of moderators revealed the relationship between PsyCap and employee outcomes were strongest in studies conducted in the United States and in the service sector. These results provide a strong evidence‐based recommendation for the use of PsyCap in HRD and performance programs. Theoretical contributions, future research directions, and practical guidelines for HRD conclude the article. Gallup Polls in recent years suggest that Americans are pessimistic about incremental
Globalization and the inward flow of immigrants: Issues associated with the inpatriation of global managers
Authors: Harvey Michael , Kiessling Tim , Moeller Miriam 
Published: June 2011

AbstractAssembling a diverse global workforce is becoming a critical dimension in gaining successful global performance. In the past, staffing has focused on control of the multinational organization as the primary goal when staffing overseas positions. As organizations globalize their operations, the goal of staffing is shifting from control to diversity, which in turn will provide the global organization with a means to gain/maintain competitive advantage. This diversity will be accomplished by integrating foreigners into the home country organization (i.e., inpatriation) through a permanent assignment. This article examines the inward flow of inpatriate managers by using social learning theory as a lens to better understand the means to integrate foreign managers into the domestic organization culture. The stages that inpatriate managers will go through (i.e., survival, integration, acculturation, and pluralistic integration) are explored to ascertain how to effectively utilize these global managers.
Determination of lumiracoxib by a validated stability‐indicating MEKC method and identification of its degradation products by LC‐ESI‐MS studies
Authors: Sangoi Maximiliano S. , Wrasse‐Sangoi Micheli , Oliveira Paulo R. , Bernardi Larissa S. 
Published: June 2011

AbstractA stability‐indicating MEKC method was developed and validated for the analysis of lumiracoxib (LMC) in pharmaceutical formulations using nimesulide as the internal standard (IS). Optimal conditions for the separation of LMC and degradation products were investigated. The method employed 50 mM borate buffer and 50 mM anionic detergent SDS solution at pH 9.0. MEKC method was performed on a fused‐silica capillary (50 μm id; effective length, 40 cm) maintained at 30°C. The applied voltage was 20 kV and photodiode array (PDA) detector was set at 208 nm. The method was validated in accordance with the International Conference on Harmonisation requirements. The stability‐indicating capability of the method was established by enforced degradation studies combined with peak purity assessment using PDA detection. The degradation products formed under stressed conditions were investigated by LC‐ESI‐MS and the two degraded products were identified. MEKC method was linear over the concentration range of 5–150 μg/mL (r2=0.9999) of LMC. The method was precise, accurate, with LOD and LOQ of 1.34 and 4.48 μg/mL, respectively. The robustness was proved by a fractional factorial design evaluation. The proposed MEKC method was successfully applied for the quantitative analysis of LMC in tablets to support the quality control.
Thermal, Optical, and Static/Dynamic Mechanical Properties of Linear‐core Crosslinked Star Polymer Blends
Authors: Spoljaric Steven , Goh Tor Kit , Blencowe Anton , Qiao Greg G. , Shanks Robert A. 
Published: June 2011

AbstractCore crosslinked star (CCS) polymers ae synthesized and blended with linear polymers. Constrained mobility is revealed by an increase in modulus and strength with CCS polymer concentration, while creep deformation decreases and permanent strain increases. Storage modulus, loss modulus, and glass transition temperature increase with CCS polymer concentration due to miscibility and linear‐CCS polymer “arm” interactions. Master curves shift to lower frequencies with blends that experience segmental relaxation across a broader time scale due to a range of molecular environments from linear to maximum constraints in the vicinity of the crosslinked cores. Fragility and apparent activation energy increase with CCS polymer content, while fractional free volume and volume expansion decrease. magnified image
Consumer loyalty in sport spectatorship services: The relationships with consumer satisfaction and team identification
Authors: Bodet Guillaume , Bernache‐Assollant Iouri 
Published: June 2011

AbstractThis research aimed to investigate the possible relationships between the concepts of consumer loyalty (attitudinal and behavioral), satisfaction, and team identification in the context of sport spectatorship. Specifically, several models were tested to investigate (1) the direct influence of team identification, consumer behavioral loyalty, and consumer satisfaction on consumer attitudinal loyalty, and (2) the mediating or moderating role of team identification in the relationship between consumer satisfaction, behavioral loyalty, and attitudinal loyalty. Results from a sample of 395 spectators of French ice hockey first division clubs revealed that consumer transaction–specific satisfaction was found to be the stronger predictor for consumer attitudinal loyalty alongside team identification and the average number of home games attended per year. A second indirect route is possible because team identification was also found to play a mediating role between consumer transaction–specific satisfaction, home and away games attended per year, and some dimensions of consumer attitudinal loyalty. Finally, team identification was also found to moderate the impact of consumer satisfaction and the number of away games attended on different facets of attitudinal loyalty. Marketing and theoretical implications are discussed. © 2011 Wiley Periodicals, Inc.
Matching a cause with self‐schema: The moderating effect on brand preferences
Authors: Chowdhury Tilottama G. , Khare Adwait 
Published: June 2011

AbstractThe moderating roles of consumer brand involvement type and product type on the effect of a match between consumers' self‐schema and the cause a brand supports on consumers' preference for the cause‐supporting brand is investigated. The authors show that a schema–cause match enhances consumer preference for a brand engaging in cause‐related marketing when (1) consumers' involvement with the brand is of the impression‐relevant type (vs. outcome‐relevant type) and (2) when the branded product is functional (vs. hedonic). © 2011 Wiley Periodicals, Inc.
Synthesis of Poly(anilineboronic acid) Nanofibers for Electrochemical Detection of Glucose
Authors: Li Guicun , Li Yingmei , Peng Hongrui , Chen Kezheng 
Published: June 2011

AbstractPoly(anilineboronic acid) (PABA) nanofibers with U‐shaped and ring‐shaped morphologies have been synthesized successfully by chemical polymerization of 3‐aminophenylboronic acid (APBA) in the presence of cetyltrimethylammonium bromide (CTAB) and NaF. The morphologies and sizes of PABA nanofibers can be controlled by adjusting the synthetic parameters, such as the concentrations of CTAB and APBA. The U‐shaped PABA nanofibers exhibit excellent electrochemical redox activity and high sensitive detection of D‐glucose in phosphate‐buffered saline stock solution (pH 7.4) because of their high effective surface area as well as the high density of boronic acid groups. magnified image
Pre‐operative evaluations for DBS in dystonia
Authors: Thobois Stéphane , Taira Takaomi , Comella Cynthia , Moro Elena , Bressman Susan , Albanese and Alberto 
Published: June 2011

AbstractBackground: The preoperative evaluation in dystonia aims at characterizing the severity and topography of motor symptoms in patients, who have previously been selected for deep brain stimulation (DBS). Methods: The literature search was performed using PubMed, CINAHL, and the Cochrane Collaborative databases. Results: Commonly used scales for clinical assessment are the Burke‐Fahn‐Marsden dystonia rating scale for generalized dystonia and the Toronto Western Spasmodic Torticollis Scale for cervical dystonia. Motor assessment is completed by quality of life and functional scales, such as the Short‐Form Health Survey (SF‐36) or the Parkinson's Disease Questionnaire 39. Validated rating scales for cranial or upper limb dystonia are lacking. Discussion: In common clinical practice, these outcome measures can be administered in an open‐label fashion because double blind assessment is only required for ascertaining new treatment indications or research purposes. The same measures are to be used postoperatively to revaluate outcome after DBS. Brain MRI is required to confirm diagnosis and assess structural abnormalities. Other imaging techniques, particularly functional imaging, are used for research purposes. © 2011 Movement Disorder Society
Identification of blood‐protein carriers of the CA 19‐9 antigen and characterization of prevalence in pancreatic diseases
Authors: Yue Tingting , Partyka Katie , Maupin Kevin A. , Hurley Mary , Andrews Philip , Kaul Karen , Moser A. James , Zeh Herbert , Brand Randall E. , Haab Brian B. 
Published: June 2011

AbstractThe current best serum marker for pancreatic cancer, CA 19‐9, detects a carbohydrate antigen on multiple protein carriers. Better knowledge of the protein carriers of the CA 19‐9 antigen in various disease states may lead to improved diagnostic tests. To identify proteins that carry the CA 19‐9 antigen, we immunoprecipitated the CA 19‐9 antigen from pooled sera and identified the associated proteins using MS. Among the high‐confidence identifications, we confirmed the presence of the CA 19‐9 antigen on Apolipoprotein B‐100 by antibody arrays and Western blot and on kininogen, ARVCF, and Apolipoprotein E by antibody arrays. We characterized the frequency and levels of the CA 19‐9 antigen on the four proteins across various patient groups (pancreatic cancer, pancreatitis, and healthy controls) using antibody arrays. Nearly, 10–25% of the subjects showed elevations of the antigen on each protein, but the elevations were not associated with disease state or total CA 19‐9 levels. These results contribute to our knowledge of the carrier proteins of an important functional glycan and the rate at which the glycan is displayed. This work also demonstrates a strategy for using the complementary methods of MS and antibody microarrays to identify protein carriers of glycans and assess the diagnostic value of measuring glycans on individual proteins.
Convenient grafting through approach for the preparation of stealth polymeric blood pool magnetic resonance imaging contrast agents
Authors: Grogna Mathurin , Cloots Rudi , Luxen André , Jérôme Christine , Passirani Catherine , Lautram Nolwenn , Desreux Jean‐F. , Detrembleur Christophe 
Published: June 2011

AbstractNew hydrosoluble magnetic resonance imaging (MRI) macrocontrast agents are synthesized by reversible addition fragmentation chain transfer (RAFT) copolymerization of poly(ethylene oxide) methyl ether acrylate (PEOMA) with an acrylamide bearing a ligand for gadolinium, followed by the complexation of Gd3+. This convenient and simple grafting through approach leads to macrocontrast agents with a high relaxivity at high frequency that is imparted by the restricted tumbling of the Gd3+ complex caused by its attachment to the polymer backbone. Importantly a very low protein adsorption is also evidenced by the hemolytic CH50 test. It is the result of the poly(ethylene oxide) (PEO) brush that efficiently hides the gadolinium complex and renders it stealth to the proteins of the immune system. Improved contrast and long blood circulating properties are thus expected for these macrocontrast agents. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011
Controlling crosslinking in thermosets via chain transfer with monoterpenes
Authors: Delancey Justin M. , Cavazza Matthew D. , Rendos Matthew G. , Ulisse Cory J. , Palumbo Susan G. , Mathers Robert T. 
Published: June 2011

AbstractRenewable resources have been utilized to control the degree of crosslinking during ring‐opening metathesis polymerizations (ROMP). In this regard, the addition of monoterpenes to thermosets created a sustainable method for adjusting the physical properties and thermal stability. A number of monoterpenes with alkenes were examined as monofunctional reactants. The presence of these monoterpenes, such as β‐pinene, during the ROMP of dicyclopentadiene altered the degree of crosslinking and plasticized the thermoset. The resulting physical properties were tailored to obtain desired modulus and glass transition (Tg) temperatures. The influence of time, temperature, weight percent β‐pinene, and different metathesis catalysts was examined by dynamic mechanical analysis, thermogravimetric analysis, and FTIR spectroscopy. A comparison of β‐pinene with other monoterpenes, such as carvone, limonene oxide, myrcene, and d‐limonene, resulted in a reactivity profile for this general method. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011
Combining renewable gum rosin and lignin: Towards hydrophobic polymer composites by controlled polymerization
Authors: Wang Jifu , Yao Kejian , Korich Andrew L. , Li Shigeng , Ma Shuguo , Ploehn Harry J. , Iovine Peter M. , Wang Chunpeng , Chu Fuxiang , Tang Chuanbing 
Published: June 2011

AbstractRosin polymer–grafted lignin composites were prepared via “grafting from” atom transfer radical polymerization (ATRP) with the aid of 2‐bromoisobutyryl ester‐modified lignin as macroinitiators. Three different monomers derived from dehydroabietic acid (DA) were used for execution of grafting from ATRP, while DA was separately attached onto lignin by a simple esterification reaction. Kinetic studies indicated controlled and “living” characteristics of all monomer polymerizations. Thermal studies indicated that rosin polymer–grafted lignin composites exhibited glass transition temperatures in a broad temperature range from ∼20 to 100°C. The grafting of both DA and rosin polymers significantly enhanced hydrophobicity of lignin. Static contact angle measurement of water droplets showed ∼90° for all these rosin modified lignin composites. X‐ray photoelectron spectroscopy demonstrated that the surface of rosin–lignin composites was dominated with chemical compositions originating from the hydrocarbon rich rosin moiety. The impartation of hydrophobicity of rosin into lignin provided excellent water resistance of this class of renewable polymers, as all rosin‐modified lignin composites showed water uptake below 1.0 wt %. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011
Effect of H‐dilution and hydrogen bonding configuration on optical and electronic properties of a‐Si:H/a‐Ge:H multilayers
Authors: Abo‐Ghazala M. S. 
Published: June 2011

AbstractThe a‐Si:H/a‐Ge: H multilayers were prepared at 200 °C by alternating deposition from SiH4 and GeH4plasmas in a computer‐controlled four chamber glow‐discharge deposition system with capacitively coupled diode reactors (Abo Ghazala, Physica B 293, 132 (2000) [1]). The individual thickness dSi of a‐Si:H layers was varied by changing deposition rate, while the layer thickness dGe of a‐Ge:H was controlled by changing hydrogen dilution ratio as well as by changing the deposition time. The optical absorption and the electrical conductivity have been investigated as a function of a‐Ge:H well width (dGe) and the barrier width (dSi) as well as the total hydrogen content (NH). The hydrogen bonding configuration was discussed using the IR absorption measurements. A real quantum confinement was recorded for the optical gap measurements. The results reveal that the electrical and optical properties of a‐Si:H/a‐Ge:H multilayers are improved compared to a bulk a‐SiGe:H alloys. For a‐Si:H(8 nm)/a‐Ge:H(1.2 nm) of the optical gap 1.47 eV, the photoconductivity reaches to 2.69 x 10‐5 S/cm. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Nanopendeo coalescence overgrowth of GaN on etched nanorod array
Authors: Shields Philip , Liu Chaowang , Šatka Alexander , Trampert Achim , Zúñiga‐Pérez Jesus , Alloing Blandine , Haško Daniel , Uherek Frantisek , Wang Wang , Causa Federica , Allsopp Duncan 
Published: June 2011

AbstractThis paper reports the characteristics of gallium nitride layers that have been grown on top of an etched array of nanorods. Nanoimprint lithography has been used to create nanorods on a wafer‐scale that are subsequently passivated to allow selective regrowth from their tips by MOVPE. The first epitaxial growth step favoured lateral growth and the second resulted in a planar coalesced layer of gallium nitride. It was found that smooth planarised overgrowth required careful timing of the growth transition between the two steps and that the crystallographic quality of the overgrown layer was very sensitive to the nanorod template properties, in particular the amount of unpassivated nanorod surface. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Selective epitaxial growth of nanomesh InGaN MQWs on nanopore arrays of GaN substrate
Authors: Zang Keyan , Chua Soo Jin 
Published: June 2011

AbstractNanomesh InGaN/GaN multi‐quantum‐well (MQWs) were grown on nanopore arrays of GaN by metal organic vapour phase epitaxy (MOCVD). The hexagonal nanopore arrays in GaN with average diameter ∼200 nm and wall thickness ∼100 nm was fabricated by inductively couple plasma (ICP) etching using anodic alumina (AAO) template as a mask. Nanoepitaxial GaN is found to deposit on the top surface of nanoporous GaN to form a nanomesh structure, with inverted pyramid at the initial stage and followed by the nano‐pyramid structure. The existence of the inverted pyramid demonstrates the 3D strain relaxation in the GaN layer, which is confirmed by the peak shift in photoluminescence, and diffraction patterns. Better light emission is demonstrated on nanomesh InGaN MQWs, attributed to the improvement of the internal quantum efficiency by the reduction of threading dislocations and the improvement of light extraction efficiency by random scattering at the nanopores in GaN. In addition, more indium incorporation has been demonstrated compared to the control InGaN MQWs, benefiting from the strain relaxation in nanoepitaxial GaN. The nanomesh InGaN/GaN MQWs are beneficial for high efficiency LEDs and future design of emission spectrum of nitride semiconductors for solar cells applications. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
High‐performance GaN/InGaN double heterojunction bipolar transistors with power density >240 kW/cm2
Authors: Zhang Yun , Lee Yi‐Che , Lochner Zachary , Kim Hee Jin , Choi Suk , Ryou Jae‐Hyun , Dupuis Russell D. , Shen Shyh‐Chiang 
Published: June 2011

AbstractWe report GaN/In0.03Ga0.97N npn double heterojunction bipolar transistors (DHBTs) grown on sapphire substrates for high power applications. High current gain and high power density are obtained using a simple single‐growth mesa etching process. A device with an emitter area (AE) of 20×20 µm2 achieves a peak d.c. current gain (β) of 84, a maximum collector current density (JC) of 7.2 kA/cm2 and a maximum power density > 240 kW/cm2. A large‐area (AE = 12163 μm2) multi‐finger device also shows a peak β = 30, maximum collector current (Ic) = 200 mA and maximum d.c. power = 3.76 W. These values are among the best for the reported III‐N HBTs to date (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
N‐arylamides and N‐arylcarbamates NCO internal rotation barrier study by molecular modeling
Authors: Grasel Fábio Dos Santos , De Oliveira Tiago Charão , Fontoura Luiz Antonio Mazzini , Da Cruz Rigotti Italo José , Netz Paulo Augusto 
Published: June 2011

AbstractAmides and carbamates present an energetic barrier associated to NC(O) bond rotation, which determines two different equilibrium geometries. In this work, the conformational equilibrium of formanilide, acetanilide, methyl and t‐butyl phenylcarbamates, and their N‐methylderivatives was studied by AM1 and B3LYP/6‐31G(d,p) calculations. The effect of aryl p‐substituents (MeO, Me, Cl, Br, CN, and NO2) was also studied. Amide barriers were found by DFT calculation between 12 and 21 kcal/mol. Carbamates, on the other hand, showed barriers between 11 and 15 kcal/mol. AM1 underestimates the energetic barriers and provides values around half those obtained by B3LYP/6‐31G(d,p) calculations. Electron withdrawing substituents on aryl group decrease the barrier. © 2011 Wiley Periodicals, Inc. Int J Quantum Chem, 2012
An Intervention to Help Community‐Based Organizations Implement an Evidence‐Based HIV Prevention Intervention: The Mpowerment Project Technology Exchange System
Authors: Kegeles Susan M. , Rebchook Gregory , Pollack Lance , Huebner David , Tebbetts Scott , Hamiga John , Sweeney David , Zovod Benjamin 
Published: June 2011

AbstractConsiderable resources have been spent developing and rigorously testing HIV prevention intervention models, but such models do not impact the AIDS pandemic unless they are implemented effectively by community‐based organizations (CBOs) and health departments. The Mpowerment Project (MP) is being implemented by CBOs around the US. It is a multilevel, evidence‐based HIV prevention program for young gay/bisexual men that targets individual, interpersonal, social, and structural issues by using empowerment and community mobilization methods. This paper discusses the development of an intervention to help CBOs implement the MP called the Mpowerment Project Technology Exchange System (MPTES); CBOs’ uptake, utilization and perceptions of the MPTES components; and issues that arose during technical assistance. The seven‐component MPTES was provided to 49 CBOs implementing the MP that were followed longitudinally for up to two years. Except for the widely used program manual, other program materials were used early in implementing the MP and then their use declined. In contrast, once technical assistance was proactively provided, its usage remained constant over time, as did requests for technical assistance. CBOs expressed substantial positive feedback about the MPTES, but felt that it needs more focus on diversity issues, describing real world implementation approaches, and providing guidance on how to adapt the MP to diverse populations.