bluuebunny/crossref_metadata_2025_split huggingface dataset:
Positive group affective tone and team creativity: Negative group affective tone and team trust as boundary conditions
Authors: Tsai Wei‐Chi , Chi Nai‐Wen , Grandey Alicia A. , Fung Sy‐Chi 
Published: August 2011

SummaryDrawing on multiple group‐level theories, we explored boundary conditions of the relationship between positive group affective tone (PGAT) and team creativity. We collected data from members and leaders of 68 research and development teams and performed hierarchical linear modeling analyses to test our hypotheses. Consistent with the “group‐centrism” perspective, we found that PGAT was beneficial for team creativity only when team trust was low; when trust was high, PGAT had a negative relationship with team creativity. In accord with the “dual‐tuning” perspective, the positive effect of PGAT on creativity was present only when team trust was low but negative group affective tone was high. We discussed the theoretical and practical implications. Copyright © 2011 John Wiley & Sons, Ltd.
Violence‐prevention climate, exposure to violence and aggression, and prevention behavior: A mediation model
Authors: Chang Chu‐Hsiang , Eatough Erin M. , Spector Paul E. , Kessler Stacey R. 
Published: August 2011

SummaryThis study explored mechanisms underlying employees' behaviors targeted at preventing workplace physical violence and verbal aggression. Poor psychological violence‐prevention climate perceptions and previous exposure to violence and aggression represent stressors that were associated with increased strains and reduced motivation. Strains and motivation, in turn, were related to prevention behaviors. We collected data from employee and coworker dyads, and structural equation modeling results supported that clear organizational policies, prompt management responses to assaults, and putting safety as a priority contributed positively to prevention behaviors through reduced strains and increased motivation. On the other hand, prior experiences of being attacked were related to more strains and lower motivation, which were related to lower prevention compliance. Our results inform future interventions for violence prevention. Copyright © 2011 John Wiley & Sons, Ltd.
Landfalling tropical cyclones activities in the south China: intensifying or weakening?
Authors: Zhang Qiang , Zhang Wei , Lu Xiaoqin , Chen Yongqin David 
Published: August 2011

AbstractLong‐term tropical cyclone (TC) data are analysed to investigate variations of the landfalling TCs in the southern China by taking Guangdong province as a case study. Changing characteristics of the sea surface temperature (SST) for the entire Pacific and the Niño3.4 index are also analysed with aim to show possible impacts of SST on the behaviours of TCs making landfall at the Guangdong province (TMLGP). On the basis of a change‐point analysis for the frequency of TMLGP, the time period 1965–2007 is subdivided into 1965–1996 and 1997–2007. The results indicate that (1) the frequency of TMLGP is influenced on inter‐annual time scales by SST variations in the South China Sea and the western North Pacific (WNP) for the period 1965–1996. The frequency of TMLGP after 1996 has a nearly opposite trend compared to the period preceding 1996. Therefore, the frequency of TMLGP for the period 1965–2007 as a whole is in an insignificant relation with SST in these two periods; (2) The frequency of TC landfall could be attributed to the WNP TC activities which are represented by a relatively good agreement of the frequency of TMLGP with the total number of TCs; (3) Generally, El Niño/La Niña‐southern oscillation (ENSO, here depicted by Niño3.4 index) exerts a considerable impact on the frequency of TMLGP; (4) The various SST measures only have a weak influence on TMLGP intensities. Despite the long‐term warming trend in SST in the WNP, no long‐term trend is observed in either the frequency or intensities of TMLGP. Copyright © 2011 Royal Meteorological Society
Assessment of climate change impact on floods using weather generator and continuous rainfall‐runoff model
Authors: Khazaei Mohammad Reza , Zahabiyoun Bagher , Saghafian Bahram 
Published: August 2011

AbstractOne of the potential impacts of climate change (CC) is the change on flood frequency and magnitude. Assessment of impact on floods involves many uncertainties. Difficulty in preparing reliable continuous time series of climate variables with fine time step and capturing extreme rainfalls for future climate scenarios has led to limited studies aimed at investigation of the change of flood regime due to CC. Weather Generators (WGs) have the potential for downscaling of GCMs (General Climate Models) outputs. However, WGs inabilities in relation to producing extreme rainfalls and low‐frequency variabilities have caused WGs to receive limited attention in flood studies. In this study, a new WG model, that removes the aforementioned WGs' inabilities, is coupled with a continuous daily rainfall‐runoff model to assess the CC impacts on floods of a basin in Iran. Changes in different characteristics of climate variables are applied in the downscaling procedure. Results indicated that, aside from the large uncertainty of emission scenarios, the climate change will lead to considerable increase in flood magnitude in the study basin. Copyright © 2011 Royal Meteorological Society
Strengthening American manufacturing with CPR®: The Hartfiel Automation process for building customer profitability
Authors: Moser Myron J. 
Published: August 2011

AbstractFor Hartfiel Automation, boosting customers' profitability has been the key to gaining and retaining business. Building on its strong sales team, the company taps the talents of several resources, including fellow manufacturers and distributors and in‐house technical experts, to provide customers with the resources they need to improve their operations. Over time, Hartfiel Automation formalized this process, Customer Profit Reinforcement (CPR®), into three phases, detailed here. To date, this strategy has strengthened the American manufacturing sector and has led to more than $50 million in savings for its client firms and more than $16 million in business saved or gained for Hartfiel Automation. © 2011 Wiley Periodicals, Inc.
Synthesis and Characterization of a Multi‐Sensitive Crosslinked Injectable Hydrogel Based on Pluronic
Authors: Nam Jeong A , Al‐Nahain Abdullah‐ , Hong Seonki , Lee Kang Dae , Lee Haeshin , Park Sung Young 
Published: August 2011

AbstractThis paper reports the construction of a novel multi‐sensitive chemically crosslinked injectable hydrogel with strong mechanical strength by modifying Pluronic F127 responsive against temperature, pH and redox potential. Crosslinked polymer between benzaldehyde grafted Pluronic (P‐A) and amine end capped Pluronic having disulfide linkage (P‐B) have been synthesized and characterized with 1H NMR spectroscopy and GPC. The hydrogel under physiological conditions significantly altered sol‐gel transition behaviors with much lower critical gelation concentrations and temperatures, compared to Pluronic hydrogels. The rheological characterization demonstrated that the moduli of the hydrogels were able to be tuned depending on molecular weight as well as pH, redox and temperature conditions.magnified image
Age‐related instability in spermatogenic cell nuclear and mitochondrial DNA obtained from Apex1 heterozygous mice
Authors: Vogel Kristine S. , Perez Marissa , Momand Jamila R. , Acevedo‐Torres Karina , Hildreth Kim , Garcia Rebecca A. , Torres‐Ramos Carlos A. , Ayala‐Torres Sylvette , Prihoda Thomas J. , McMahan C. Alex , Walter Christi A. 
Published: August 2011

AbstractThe prevalence of spontaneous mutations increases with age in the male germline; consequently, older men have an increased risk of siring children with genetic disease due to de novo mutations. The lacI transgenic mouse can be used to study paternal age effects, and in this system, the prevalence of de novo mutations increases in the male germline at old ages. Mutagenesis is linked with DNA repair capacity, and base excision repair (BER), which can ameliorate spontaneous DNA damage, decreases in nuclear extracts of spermatogenic cells from old mice. Mice heterozygous for a null allele of the Apex1 gene, which encodes apurinic/apyrimidinic endonuclease I (APEN), an essential BER enzyme, display an accelerated increase in spontaneous germline mutagenesis early in life. Here, the consequences of lifelong reduction of APEN on genetic instability in the male germline were examined, for the first time, at middle and old ages. Mutant frequency increased earlier in spermatogenic cells from Apex1+/− mice (by 6 months of age). Nuclear DNA damage increased with age in the spermatogenic lineage for both wild‐type and Apex1+/− mice. By old age, mutant frequencies were similar for wild‐type and APEN‐deficient mice. Mitochondrial genome repair also depends on APEN, and novel analysis of mitochondrial DNA (mtDNA) damage revealed an increase in the Apex1+/− spermatogenic cells by middle age. Thus, Apex1 heterozygosity results in accelerated damage to mtDNA and spontaneous mutagenesis, consistent with an essential role for APEN in maintaining nuclear and mtDNA integrity in spermatogenic cells throughout life. Mol. Reprod. Dev. 78:906–919, 2011. Published 2011. This article is a U.S. Government work and is in the public domain in the USA.
Fenretinide cytotoxicity is independent of both constitutive and pharmacologically modulated glutathione levels in pediatric acute lymphoblastic leukemia cells cultured at hypoxia
Authors: Cooper Jason P. , Bang Sookhee , Singh Hardeep , Williams Simon C. , Kang Min H. 
Published: August 2011

AbstractFenretinide (4‐HPR) cytotoxicity relative to glutathione levels in pediatric acute lymphoblastic leukemia cell lines cultured at bone marrow level hypoxia (5% O2) is evaluated. 4‐HPR cytotoxicity correlated with reactive oxygen species generation (P < 0.001), but not with levels of intracellular glutathione, γ‐glutamylcysteine synthase, or glutathione peroxidase. Buthionine sulfoximine (BSO) reduced glutathione levels in 10 cell lines (P < 0.001), but 4‐HPR + BSO was markedly synergistic in only 1 of 10 lines. Pretreatment with N‐acetylcysteine increased glutathione (P < 0.02) but did not alter 4‐HPR cytotoxicity. Our data suggest that 4‐HPR cytotoxicity is independent of glutathione under physiologic oxygen tension. Pediatr Blood Cancer 2012; 58: 994–997. © 2011 Wiley Periodicals, Inc.
Free standing modulation doped core–shell GaAs/AlGaAs hetero‐nanowires
Authors: Spirkoska Dance , Fontcuberta i Morral Anna , Dufouleur Joseph , Xie Qiushi , Abstreiter Gerhard 
Published: August 2011

AbstractModulation doped AlGaAs/GaAs core–shell nanowire structures were grown by molecular beam epitaxy. A Si delta‐doping was introduced in the AlGaAs shell around the {110} facets of the GaAs core. The wires are typically highly resistive at low temperatures. However, they show a pronounced persistent photoconductivity effect indicating activation of free carriers from the delta‐doped shell to the GaAs core. The n‐type character of the channel is demonstrated by applying a back‐gate voltage. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ECOHYDRAULIC ANALYSIS OF FISH FATIGUE DATA
Authors: Katopodis C. , Gervais R. 
Published: August 2011

ABSTRACTSwimming speeds and endurance vary with species and body morphology, fish length, water temperature and other variables. Data on fish swimming performance are collected from various swim tests conducted in the laboratory or the field. Tests include stamina tunnels where fish are constrained, long pipes with pressure flow, open channels where fish are either constrained or free to volitionally swim and field studies with culverts or other hydraulic structures where fish passage is assessed. Studies on swimming performance and data availability on various species, mostly from stamina tunnels, have been increasing since the 1960s, with more emphasis on volitional channels since the 1990s. An extensive database on fish swimming performance was generated from the literature. Fish tested represent a broad range of species and individuals within many species. There are insufficient data for many species, and significant regressions for speed versus endurance are not available for these species. Fatigue curves of groups of species using an ecohydraulic approach with dimensionless quantities improved regressions when compared with body lengths per second versus time. Furthermore, it was found that the square root of body length is a better scale for fish speed. Although variability in swimming performance exists between species and individuals within a species, data analyses indicate broad similarities in relative performance for groups of species of similar morphology or swimming mode. The ecohydraulic approach allowed the use of limited data sets in analyses for groups of species. Significant speed–time regressions were developed for three groups, the Eel group, the Trout group and the Sturgeon group. Estimates of fish fatigue time with different confidence levels may be useful when considering physiological aspects in practical applications. Copyright © 2011 John Wiley & Sons, Ltd.
Querkraftbeanspruchte Verbindungen von Sandwichelementen
Authors: Käpplein Saskia , Ummenhofer Thomas 
Published: August 2011

AbstractSandwichelemente werden üblicherweise als raumabschließende Bauteile eingesetzt. Sie werden auf eine Unterkonstruktion montiert und leiten Lasten direkt an diese weiter. Aufgrund der großen Schubsteifigkeit in der Elementebene können sie auch zur Aussteifung und Stabilisierung von Bauteilen und Gebäuden sowie zum Lastabtrag in der Elementebene herangezogen werden. Die Verbindungen der Elemente weisen jedoch eine wesentlich geringere Steifigkeit als die Elemente selbst auf. Daher werden bei der Ermittlung der Steifigkeit von Schubfeldern aus Sandwichelementen nicht die Elemente, sondern ihre Verbindungen maßgebend. Für die Bemessung der Schubfelder ist es daher unerlässlich die Steifigkeit der Verbindungen zu kennen. Hierzu liegen bisher jedoch keine allgemeingültigen Angaben oder Berechnungsansätze vor. Es wird ein mechanisches Modell zur Ermittlung von Steifigkeit und Tragfähigkeit der Verbindung zwischen Element und Unterkonstruktion vorgestellt. Zusätzlich werden Angaben zur Steifigkeit der Verbindungen an Längsstößen von Dachelementen gemacht.Shear loaded fastenings of sandwich panels. Sandwich panels are mostly used as components for enclosures. They are installed on a substructure and transfer forces to it. Because of the high in‐plane shear resistance of the panels they can also be used for stabilizing single components and buildings as well as for transferring loads. The stiffness of the fastenings is smaller than the stiffness of the panels. Therefore for the stiffness of diaphragms made of sandwich panels not the stiffness of the panel, but the stiffness of the fastenings is decisive. So for design of shear diaphragms knowledge of the stiffness of the fastenings is mandatory. But up to now no general information or calculation procedures are available. A mechanical model for determination of stiffness and load bearing capacity of fastenings of sandwich panels is presented. Additional information on the stiffness of fastenings at longitudinal joints of roof panels is given.
Abpumpverhalten von Roots‐ und Schraubenvakuumpumpen
Authors: Janicki Magnus , Schiller Dirk 
Published: August 2011

AbstractKombinationen von Rootspumpen‐ und Schraubenvakuumpumpen ermöglichen in industriellen Vakuumanwendungen ein hohes Saugvermögen bei gleichzeitig kompakten Abmessungen und effizientem Energieeinsatz. Beim Einsatz dieser Pumpkombination zur Behälterevakuierung hat die Art der Lastregelung der Rootspumpe einen großen Einfluss auf die Evakuierungszeit und die erzielte Energieeffizienz. Die Einsatzgrenzen von Rootsgebläsen in der Vakuumtechnik werden erläutert und Maßnahmen vorgestellt, die eine Überlastung der Maschine verhindern.
Two Lanthanide‐Organic Frameworks Derived from 1H‐Benzimidazole‐5‐Carboxylic Acid and Oxalate Mixed Ligands: Synthesis, Structure and Luminescence Property
Authors: Ma Li , Peng Guo , Cai Jin‐Biao , Deng Hong 
Published: August 2011

AbstractTwo novel lanthanide metal coordination frameworks were synthesized by reaction of 1H‐benzimidazole‐5‐carboxylic acid (H2bic) in the presence of the coligand oxalate with lanthanide ions under hydrothermal conditions, namely, [Eu(H2bic)(C2O4)1.5]·H2O (1) and [La(H2bic)(C2O4)1.5]·H2O (2). The two compounds 1 and 2 are isomorphous and have a 2D layer architecture built up by oxalate ligands interconnecting Eu2O2 clusters, which are further linked by hydrogen bonding to form a 3D supramolecular framework. The luminescence emission spectrum of compound 1 is also discussed. Both compounds were further investigated by infrared spectroscopy (IR), thermogravimetric analysis (TGA), elemental analyses (EA), and powder X‐ray diffraction (PXRD).
Killer whale (Orcinus orca) predation in a multi‐prey system
Authors: Ferguson Steven H. , Kingsley Michael C. S. , Higdon Jeff W. 
Published: August 2011

AbstractPredation can regulate prey numbers but predator behaviour in multiple‐prey systems can complicate understanding of control mechanisms. We investigate killer whale (Orcinus orca) predation in an ocean system where multiple marine mammal prey coexist. Using stochastic models with Monte‐Carlo simulations, we test the most likely outcome of predator selection and compare scenarios where killer whales: (1) focus predation on larger prey which presumably offer more energy per effort, (2) generalize by feeding on prey as encountered during searches, or (3) follow a mixed foraging strategy based on a combination of encounter rate and prey size selection. We test alternative relationships within the Hudson Bay geographic region, where evidence suggests killer whales seasonally concentrate feeding activities on the large‐bodied bowhead whale (Balaena mysticetus). However, model results indicate that killer whales do not show strong prey specialization and instead alternatively feed on narwhal (Monodon monoceros) and beluga (Delphinapterus leucas) whales early and late in the ice‐free season. Evidence does support the conjecture that during the peak of the open water season, killer whale predation can differ regionally and feeding techniques can focus on bowhead whale prey. The mixed foraging strategy used by killer whales includes seasonal predator specialization and has management and conservation significance since killer whale predation may not be constrained by a regulatory functional response.
Recognizing and learning models of social exchange strategies for the regulation of social interactions in open agent societies
Authors: Dimuro Graçaliz Pereira , da Rocha Costa Antônio Carlos , Gonçalves Luciano Vargas , Pereira Diego Rodrigues 
Published: August 2011

Abstract
Regulation of social exchanges refers to controlling social exchanges between agents so that the balance of exchange values involved in the exchanges are continuously kept—as far as possible—near to equilibrium. Previous work modeled the social exchange regulation problem as a POMDP (Partially Observable Markov Decision Process), and defined the policyToBDIplans algorithm to extract BDI (Beliefs, Desires, Intentions) plans from POMDP models, so that the derived BDI plans can be applied to keep in equilibrium social exchanges performed by BDI agents. The aim of the present paper is to extend that BDI-POMDP agent model for self-regulation of social exchanges with a module, based on HMM (Hidden Markov Model), for recognizing and learning partner agents’ social exchange strategies, thus extending its applicability to open societies, where new partner agents can freely appear at any time. For the recognition problem, patterns of refusals of exchange proposals are analyzed, as such refusals are produced by the partner agents. For the learning problem, HMMs are used to capture probabilistic state transition and observation functions that model the social exchange strategy of the partner agent, in order to translate them into POMDP’s action-based state transition and observation functions. The paper formally addresses the problem of translating HMMs into POMDP models and vice versa, introducing the translation algorithms and some examples. A discussion on the results of simulations of strategy-based social exchanges is presented, together with an analysis about related work on social exchanges in multiagent systems.
Radiographic Findings in Cats with Mycobacterial Infections
Authors: Bennett Alexander D , Lalor Stephanie , Schwarz Tobias , Gunn-Moore Daniélle A 
Published: August 2011

This study describes radiographic changes associated with mycobacterial infection in 33 domestic cats confirmed by culture or interferon-gamma testing. Infection was seen most frequently in adult (average age 5.7 years; range 1.5–12 years), non-pedigree (87%; 27/31), neutered male cats (69%; 22/32). The most common infections were Mycobacterium microti (60%; 18/30) and Mycobacterium bovis (37%; 11/30); Mycobacterium avium and Mycobacterium malmoense were infrequently cultured (3% of each; 1/30). Radiographs were available for the thorax (24 cats), abdomen (eight), appendicular skeleton (11) and head (three). Radiographic changes affected the thorax most commonly, consisting of bronchial (46%; 11/24), alveolar (38%; 9/24), nodular unstructured interstitial (38%; 9/24) or unstructured interstitial (25%; 6/24) lung patterns, which were often mixed. Perihilar or sternal lymphadenopathy were common (42%; 10/24), particularly perihilar lymphadenopathy (25%; 6/24). Skeletal changes were found in the distal antebrachium (three), pes (two), maxilla, scapula, spine, manus, femur, and tarsus (one each). Changes were typically osteolytic (73%; 8/11), often permeative osteolytic (64%; 7/11). Osteoproliferative changes were seen in three cats and soft tissue swelling in five cats, which were adjacent to the bony abnormality in four cats. Other changes included submandibular soft tissue swelling, marked aortic, aortic root and brachiocephalic trunk calcification, and soft tissue swelling with calcification in the distal antebranchium which was not involving bone. Abdominal changes were uncommon (seen in 2/8 cats) and consisted of hepatomegaly and hepatosplenomegaly. In summary, radiographic changes were varied, no lesion was pathognomic for mycobacterial infection, and pathology was seen most commonly in the thorax.