bluuebunny/crossref_metadata_2025_split huggingface dataset:
Differential implications of team member promotive and prohibitive voice on innovation performance in research and development project teams: A dialectic perspective
Authors: Liang Jian , Shu Rui , Farh Crystal I.C. 
Published: October 2018

SummaryHow and when does team member voice facilitate team innovation? Integrating research on member voice and a dialectic perspective of innovation, we advance a model in which team member promotive voice enhances team innovation through team knowledge utilization, whereas team member prohibitive voice enhances team innovation through team reflexivity in a nonlinear fashion. We further propose that the differential effects of team member promotive and prohibitive voice will be stronger at different stages (idea generation vs. idea implementation) of the innovation cycle. Survey data from 78 research and development project teams showed a positive indirect effect between team member promotive voice and team innovation through team knowledge utilization, although this relationship was also mediated through team reflexivity. Moreover, the indirect effect of team member promotive voice on team innovation via team knowledge utilization was stronger for teams in the idea generation stage of team innovation. Results also confirmed a nonlinear indirect relationship between team member prohibitive voice and team innovation via team reflexivity such that the positive effects of team member prohibitive voice tapered off at high levels. Contrary to our expectations, the effects of prohibitive voice held regardless of stage. Theoretical and practical implications are discussed.
The potential aroma and flavor compounds in Vitis sp. cv. Koshu and V. vinifera L. cv. Chardonnay under different environmental conditions
Authors: Bahena‐Garrido Sharon Marie , Ohama Tomoko , Suehiro Yuka , Hata Yuko , Isogai Atsuko , Iwashita Kazuhiro , Goto‐Yamamoto Nami , Koyama Kazuya 
Published: October 2018

AbstractBACKGROUNDKoshu, a hybrid of Vitis vinifera L. and V. davidii Foex, is the most popular indigenous cultivar for wine production in Japan. However, little is known about the potential aroma compounds it contains and how environmental factors affect these. In this study, we obtained comprehensive profiles of the volatile (both glycosidically bound and free) and phenolic compounds that occur in koshu berries, and compared these with similar profiles for V. vinifera cv. chardonnay. We then compared the response of these two cultivars to bunch shading and the ripening‐related phytohormone abscisic acid (ABA).RESULTSKoshu berries contained significantly higher concentrations of phenolic compounds, such as hydroxycinnamic acid derivatives, and some volatile phenols, such as 4‐vinyl guaiacol and eugenol, than chardonnay berries, which are thought to contribute to the characteristics of koshu wine. In addition, koshu berries had a distinctly different terpenoid composition from chardonnay berries. Shading reduced the concentration of norisoprenoid in both cultivars, as well as several phenolic compounds, particularly their volatile derivatives in koshu berries. The exogenous application of ABA induced ripening and increased the concentrations of lipid derivatives, such as hexanol, octanol, 1‐nonanol, and 1‐octen‐3‐ol. Multivariate and discriminant analyses showed that the potential aroma and flavor compounds in the berries could be discriminated clearly based on cultivar and environmental cues, such as light exposure.CONCLUSIONThe unique secondary metabolite profiles of koshu and their different responses to environmental factors could be valuable for developing various types of koshu wines and new cultivars with improved quality and cultural characteristics. © 2018 Society of Chemical Industry
A circular echo planar sequence for fast volumetric fMRI
Authors: Rettenmeier Christoph , Maziero Danilo , Qian Yongxian , Stenger V. Andrew 
Published: October 2018

PurposeTo demonstrate a circular EPI (CEPI) sequence as well as a generalized EPI reconstruction for fast fMRI with parallel imaging acceleration.MethodsThe CEPI acquisition was constructed using variable readout lengths and maximum ramp sampling as well as blipped‐CAIPI z‐gradient encoding for simultaneous multislice (SMS) and 3D volumetric imaging. A signal equation model with constant and linear phase terms was used to iteratively reconstruct images with low ghosting. Simulation, phantom, and human imaging experiments including audio/visual fMRI were performed at 3T using a 52‐channel coil.ResultsApplication of CEPI gradients with duration of 27 ms covering a 22‐cm FOV at a 64 × 64 pixel resolution in SMS and 3D acquisitions resulted in images with comparable quality to those of standard Cartesian EPI. With parallel imaging techniques robust detection of BOLD fMRI activation with temporal sampling down to 275 ms was possible. The high temporal resolution enabled higher activation statistics at a penalty in increased noise and residual aliasing. The un‐accelerated 3D acquisition showed large temporal instability compared with a standard 2D acquisition.ConclusionNonuniform sampling and generalized image reconstructions can be applied to EPI acquisitions including those with blipped‐CAIPI z gradients. The same gradients can be used for either SMS or 3D acquisitions providing identical coverage.
Ferritinbasierte makroporöse Gelnanoreaktoren
Authors: Häring Marleen , Díaz Díaz David 
Published: October 2018

AbstractMehrere Ferritine, also Proteinkomplexe, lassen sich zu einem stabilen makroporösen Hydrogel verbinden. Ferritin enthält normalerweise Eisenoxid, das sich wegen der großen Poren aber einfach gegen andere katalytisch aktive monodisperse Metallnanopartikel austauschen lässt. Zudem erleichtern die Poren den Reaktandentransport, was die Verbindung zu einem vielseitigen heterogenen Katalysator macht.
Pro Glyphosat: Die Diskussion um Glyphosat ist nicht sachlich
Authors: Küchler Thoralf 
Published: October 2018

AbstractJede Methode, Unkraut zu bekämpfen, greift in die Natur ein. Herbizide sind eine Option dafür, die den Boden schont, und Glyphosat ist der am besten untersuchte Wirkstoff, meint Thoralf Küchler.
Quanteneffekte – ganz natürlich
Authors: Groß Michael 
Published: October 2018

AbstractKuriose Effekte der Quantenmechanik sind nicht nur im Subatomaren wichtig, sondern auch bei Photosynthese oder Geruchswahrnehmung. Kürzlich wurden 100 000 Versuchspersonen rund um die Welt Teil eines quantenmechanischen Experiments zum Nachweis, dass die Kuriositäten nicht mit klassischer Physik zu erklären sind.
Isrium 2018 – eine Konferenz für ungewöhnliche Moleküle
Authors: Kretschmer Robert 
Published: October 2018

AbstractEtwa hundert Wissenschaftler aus der ganzen Welt trafen sich Mitte Juli zum International Symposium on Reactive Intermediates and Unusual Molecules (Isrium) in Ascona (Schweiz). Mit dem Monte Verità hätten die Organisatoren Thomas Bally (Universität Freiburg) und Peter Chen (ETH Zürich) keinen besseren Ort für diese Konferenz finden können. 33 Vorträge und 30 Poster über reaktive Intermediate, Katalysemechanismen, physikalisch‐organische Chemie, mechanistische Aspekte der biologisch‐organischen Chemie sowie zu Fragen und Problemen der angewandten theoretischen Chemie ließen Raum für Diskussionen.
Informationstechnik: Vernetzungsrisiken vermeiden
Authors: Zenner Jos , Crocoll Nora 
Published: October 2018

AbstractIndustrie 4.0 vernetzt Prozesse und Fabriken. Öffentliche Einrichtungen müssen sich dabei nach bestimmten Normen zertifizieren lassen. Diese Standards könnten auch in der chemischen Industrie verhindern, dass jemand unbefugt auf Geräte und Daten zugreift.
Synthesis of new fluorinated aromatic poly (ether ketone amide)s containing cardo structures by a heterogeneous palladium‐catalyzed carbonylative polycondensation
Authors: Liu Limin , Zou Feihua , Zhang Rongli , Cai Mingzhong 
Published: October 2018

New fluorinated aromatic poly (ether ketone amide)s containing cardo structures were prepared by a heterogeneous palladium‐catalyzed polycondensation of fluorinated aromatic diiodides with ether ketone units, aromatic diamines containing cardo groups, and CO. Polymerizations were conducted in N,N‐dimethylacetamide at 120°C using 6 mol% of magnetic nanoparticles‐supported bidentate phosphine palladium (II) complex [Fe3O4@SiO2‐2P‐PdCl2] as catalyst and 1,8‐diazabicyclo[5,4,0]‐7‐undecene as base and resulted in fluorinated cardo poly (ether ketone amide)s with inherent viscosities up to 0.75 dL/g. All the polymers were readily soluble in many organic solvents and could afford transparent, flexible, and strong films by solution casting. These polymers showed good thermal stability with the glass transition temperature of 237°C–258°C, the temperature at 5% weight loss of 462°C–477°C in nitrogen. These polymer films also exhibited good mechanical properties, excellent electrical and dielectric performance, and high optical transparency. The incorporation of bulky fluorinated groups and cardo structures into polymer backbone has played an important role in the improvement of solubility, dielectric performance, and optical properties. Importantly, the heterogeneous palladium catalyst can easily be recovered from the reaction mixture by simply applying an external magnet and recycled up to 7 times without significant loss of catalytic activity.
Radical processes initiated by ionizing radiation in PEEK and their macroscopic consequences
Authors: Kornacka Ewa Maria , Przybytniak Grażyna , Nowicki Andrzej 
Published: October 2018

Poly (ether ether ketone) was irradiated with gamma rays or electron beam to investigate the radical process. The generated paramagnetic species were observed by electron spin resonance spectroscopy at ambient temperature and in liquid nitrogen. The effect of microwave power on saturation of the particular spectra and thermal annealing effects were determined. The following radicals were identified: radical anion, phenoxyl radical, and phenylperoxy radical. Despite the fact that the intermediates were formed as a result of backbone cleavage causing degradation, the macroscopic features were almost unaffected by irradiation up to dose of 1500 kGy.
Role of antithyroid autoimmunity as a predictive biomarker of chronic immune thrombocytopenia
Authors: Giordano Paola , Urbano Flavia , Lassandro Giuseppe , Bianchi Francesco Paolo , Tolva Alessandra , Saracco Paola , Russo Giovanna , Notarangelo Lucia Dora , Gabelli Maria , Cesaro Simone , Wasniewska Malgorzata , Faienza Maria Felicia 
Published: October 2018

AbstractBackgroundImmune thrombocytopenia (ITP) is an acquired immune‐mediated disorder characterized by isolated thrombocytopenia. Pediatric ITP patients are prone to develop autoantibodies such as antithyroglobulin (TG) and antithyroperoxidase (TPO), even in the absence of clinical signs of autoimmune disease. The aim of this multicenter retrospective study was to evaluate (1) the prevalence of positivity of antithyroid antibodies (TPO and TG) in a large cohort of pediatric patients with chronic ITP; (2) the role of autoimmune thyroiditis as a prognostic factor for chronicity of ITP.ProcedureFor this retrospective study, we collected data from patients diagnosed as affected by chronic ITP between 2011 and 2014 in six centers belonging to the Italian Association of Pediatric Haematology and Oncology (AIEOP).ResultsFrom the analysis of data, we found a significantly higher prevalence of antithyroid antibodies in children with chronic ITP (11.6%) than in the pediatric population (1.2%–1.3%).No correlation has been found between the platelet count and the prevalence of positive antithyroid antibodies at any detection time of the study.ConclusionsThe results of our study demonstrated that (1) the prevalence of positivity for antithyroid antibodies (anti‐TPO and anti‐TG) in pediatric patients with chronic ITP results is significantly higher than in the pediatric population; (2) autoimmune thyroiditis does not seem to play a role as a prognostic factor for chronicity of ITP in pediatric patients.
Refinements on eigenvalue elasticity analysis: interpretation of parameter elasticities
Authors: Naumov Sergey , Oliva Rogelio 
Published: October 2018

AbstractThe purpose of this article is to report on improvements on the interpretation and insights emerging from dynamic decomposition weight analysis (DDWA). These improvements emerged from efforts to further automate and expand the eigenvalue elasticity analysis methods and resolve inconsistencies in assumptions made in published reports of DDWA usage. In addition to making available to the broad system dynamics community an improved toolset to perform eigenvalue elasticity analysis, in this paper we clarify the set of assumptions needed to obtain reliable results and develop a new framework to assess the impact of model parameters on the projections of behavior modes on stock behavior. We illustrate the use of these developments by updating a previously published model analysis. The paper concludes by summarizing our findings and their implications for the further development of structural dominance analysis.© 2018 System Dynamics Society
Zur Verwendung von Keilsicherungsscheiben für geschraubte Verbindungen im bauaufsichtlich geregelten Bereich
Authors: Denkert Christian , Ulbrich Detlef , Glienke Ralf 
Published: October 2018

AbstractDer Problematik des selbsttätigen Losdrehens wird offensichtlich auch im Stahl‐ und Metallbau eine solche technische und wirtschaftliche Relevanz beigemessen, dass Keilsicherungsscheiben auch für die Verwendung im bauaufsichtlich geregelten Bereich vorgesehen sind. Die Sicherungswirkung stellt hierbei ein Gebrauchstauglichkeitskriterium dar, welches auf der Ausnutzung einer Vorspannkraft beruht. In diesem Beitrag wird die Verwendung der Keilsicherungsscheiben in Schraubenverbindungen vor dem Hintergrund der derzeitigen Normungslage des bauaufsichtlich geregelten Bereiches diskutiert. Aus den Erfahrungen umfangreicher experimenteller Untersuchungen wird in diesem Beitrag eine Methodik vorgestellt, mit deren Hilfe der Verwendbarkeitsnachweis für Keilsicherungsscheiben experimentell und rechnerisch abgebildet werden kann.
Landmarke Duhamel – das Saarpolygon
Authors: Pfeiffer Katja , Sachse Oliver , Lehmann Dirk 
Published: October 2018

AbstractDas Saarpolygon ist ein Symbol des tiefgreifenden Wandels der saarländischen Industrielandschaft nach dem Ende der Bergbauära. Es erinnert an die über 250‐jährige Tradition des Kohlebergbaus und verweist zugleich auf den Strukturwandel und die zukünftige Entwicklung der Region. Die formal abstrakte, begehbare Großskulptur aus Stahl von fast 30 m Höhe auf der Bergehalde Duhamel ist aus mehreren Kilometern Distanz sichtbar. Als Aussichtsturm mit Panoramablick auf das umgebende Saartal ist es zugleich ein Ausflugsziel auf dem 150 m hohen Haldenplateau (Bild 1).Das Projekt entstand aus einem internationalen Wettbewerb, aus dem der Entwurf von Katja Pfeiffer und Oliver Sachse als Gewinner hervorging. Mit der Realisierung der Landmarke auf der Halde Duhamel wurden vom Förderverein BergbauErbeSaar e.V. als Bauherr die Gewinner des Wettbewerbs pfeiffer sachse architekten (Berlin) und die Claus Queck GmbH (Düren) als Generalunternehmer beauftragt.
Zur Mechanik des äquivalenten T‐Stummels
Authors: Steinmann Ralf 
Published: October 2018

AbstractDas Modell des „äquivalenten T‐Stummels” ist ein anerkanntes Verfahren zur Beurteilung der Tragfähigkeit geschraubter Plattenverbindungen. In DIN EN 1993‐1‐8 wird diese Methode als Standard vorgegeben. Die dort angegebenen Formeln für die Berechnung der effektiven Länge beruhen auf der Auswertung umfangreicher Versuchsergebnisse und ergänzender FE‐Berechnungen. Ein schlüssiges mechanisches Modell fehlt bis heute. Im Folgenden wird nun ein solches mechanisches Modell vorgestellt, welches es erlaubt, auf der Basis der Fließlinientheorie die effektive Länge von Fließlinien für unterschiedliche Versagensmuster auf einfache Weise zu berechnen.
Epigenetic Control of Mesenchymal Stem Cell Fate Decision via Histone Methyltransferase Ash1l
Authors: Yin Bei , Yu Fanyuan , Wang Chenglin , Li Boer , Liu Mengyu , Ye Ling 
Published: October 2018

Abstract
Previous research indicates that knocking out absent, small, or homeotic-like (Ash1l) in mice, a histone 3 lysine 4 (H3K4) trimethyltransferase, can result in arthritis with more severe cartilage and bone destruction. Research has documented the essential role of Ash1l in stem cell fate decision such as hematopoietic stem cells and the progenitors of keratinocytes. Following up on those insights, our research seeks to document the function of Ash1l in skeletal formation, specifically whether it controls the fate decision of mesenchymal progenitor cells. Our findings indicate that in osteoporotic bones, Ash1l was significantly decreased, indicating a positive correlation between bone mass and the expression of Ash1l. Silencing of Ash1l that had been markedly upregulated in differentiated C3H10T1/2 (C3) cells hampered osteogenesis and chondrogenesis but promoted adipogenesis. Consistently, overexpression of an Ash1l SET domain-containing fragment 3 rather than Ash1lΔN promoted osteogenic and chondrogenic differentiation of C3 cells and simultaneously inhibited adipogenic differentiation. This indicates that the role of Ash1l in regulating the differentiation of C3 cells is linked to its histone methyltransferase activity. Subcutaneous ex vivo transplantation experiments confirmed the role of Ash1l in the promotion of osteogenesis. Further experiments proved that Ash1l can epigenetically affect the expression of essential osteogenic and chondrogenic transcription factors. It exerts this impact via modifications in the enrichment of H3K4me3 on their promoter regions. Considering the promotional action of Ash1l on bone, it could potentially prompt new therapeutic strategy to promote osteogenesis. Stem Cells 2019;37:115–127
Institutional Guidelines Can Decrease the Amount of Opioids Prescribed after Total Joint Replacement
Authors: Kahlenberg Cynthia A. , Stepan Jeffrey G. , Premkumar Ajay , Lovecchio Francis D. , Cross Michael B. 
Published: October 2018

Background In the midst of the nationwide opioid epidemic, our institution began an effort to improve the education of opioid prescribers and disseminate procedure-specific guidelines for the number of opioid pills to prescribe post-operatively for total joint arthroplasty. The number of opioid pills suggested for total hip or knee replacement was 70 tablets. Questions/Purposes We sought to evaluate the impact of the new institutional guideline on opioid prescribing practices, hypothesizing that it would lead to a decrease in the number of pills prescribed but an increase in patient call volume after discharge. Methods After the new guidelines were implemented in February 2018, we retrospectively reviewed all opioid prescriptions written for patients on the joint-replacement service from March 2016 to March 2018. In addition, we tabulated post-operative telephone calls made to the nurse practitioner service before and after guideline implementation. The majority of calls to the nurse practitioner service are for opioid renewals. Results We included 9514 patients in the analysis. Prior to guideline implementation, the mean number of pills prescribed after primary total joint arthroplasty was 91 ± 26.6 pills and after it was 65 ± 16.3 pills. The monthly number of unique patient telephone interactions was statistically significantly lower after the implementation of the new guidelines. Conclusion An institutional guideline for opioid prescribing after total joint arthroplasty significantly reduced the number of pills prescribed to patients without causing a significant increase in the number of phone calls to the service.
Internalizing symptoms and dating violence perpetration in adolescence
Authors: Yu Rongqin , Pepler Debra J. , van de Bongardt Daphne , Josephson Wendy L. , Connolly Jennifer 
Published: October 2018

ABSTRACTBackgroundIncreasing evidence suggests an association between internalizing symptoms and violence against others. It remains unknown whether this link exists in the context of romantic relationships. In the current study, we tested whether anxiety and depression were associated over time with adolescent dating violence perpetration.MethodsThe sample included 238 Canadian adolescents (42% boys). Using a longitudinal design, their anxiety, depressive symptoms, and dating violence perpetration were annually assessed from age 14 to 15 years.ResultsCross‐lagged analyses revealed effects from anxiety and depressive symptoms to dating violence one year later (β = 0.27, p < .001; and β = 0.14, p = .04, respectively). No reversed cross‐lagged paths were found from dating violence to subsequent anxiety or depression.ConclusionsOur findings underscore the predictive value of internalizing symptoms on dating violence perpetration. Reducing internalizing symptoms and improving coping strategies are important targets for the prevention of dating violence.
Striking a balance: resolving conflicts between the duty of confidentiality and duties to third parties in genetics
Authors: Hawkins Naomi , Hughes-Davies Timon 
Published: October 2018

AbstractGenetic information is relevant not only to the patient, but also to their family. Where a patient refuses to share that information with family members, then their legal rights may conflict. This paper focuses on that conflict between the rights of individuals and the rights of third parties. We first examine the nature of the duty of confidence as it applies in these circumstances, and the extent to which it can appropriately accommodate the familial nature of genetic information. We then consider the situations in which a healthcare practitioner might owe a third-party family member a tortious duty of care. We conclude that in most cases, there will be no duty owed to third parties, but that in certain limited circumstances, a duty of care should arise.
Divine Text, National Language, and Their Publics: Arguing an Indonesian Qur'an
Authors: Keane Webb 
Published: October 2018

AbstractThe entry of a universal revelation into the mundane world of language threatens to be paradoxical: it must take a specific and local form. As such, it becomes implicated in nationalist, ethnic, linguistic, and other sources of community. This article centers on a small melodrama in late twentieth-century Indonesia, home to the largest number of Muslims of any country. After undergoing a mid-life spiritual awakening, H. B. Jassin, a modernist literary critic, editor, and ardent defender of freedom of expression, undertook two projects intended to convey the aesthetic power of the Qur'an to a non-Arabic speaking public. But if Qur'anic Arabic summons a transnational community of the faithful, standardized Indonesian was developed to address a nation of citizens. If scripture speaks in a divine, uncreated idiom, the national language is shaped by human efforts. Jassin's career had served a vision of literature and its public whose values and semiotic ideologies were dramatically at odds with Qur'anic traditions. Although this may appear at first glance to be a familiar story of progress and its opponents, this article asks whether Jassin's critics grasped something about signs and communities that his defenders did not. Examining the furor that resulted from his Qur'ans, it explores an array of conflicting assumptions about language, freedom, truth, and people's lives together in the late twentieth century.