bluuebunny/crossref_metadata_2025_split huggingface dataset:
Under pressure: Family financial support and the ambidextrous use of causation and effectuation
Authors: Braun Ilija , Sieger Philipp 
Published: November 2020

AbstractResearch SummaryUsing causal and effectual decision‐making logics ambidextrously leads to positive firm‐level outcomes, such as enhanced new venture performance. However, what makes an entrepreneur more or less likely to apply this ambidextrous use? We address this unanswered question by introducing family financial support as a corresponding antecedent. Taking a family embeddedness perspective, we further theorize that our proposed relationships are weaker when the entrepreneur exhibits a strong internal locus of control. Analyzing a sample of 1,460 student entrepreneurs from 19 countries confirms our general reasoning and offers valuable contributions to different streams of literature.Managerial SummaryUsing both causal and effectual decision‐making logics simultaneously in the founding process has been shown to enhance new venture performance. It is unknown, however, what makes an entrepreneur more likely to apply this “ambidextrous” use of causation and effectuation. In the present paper, we suggest that the more entrepreneurs rely on family financial support for creating their new venture, the more likely is their engagement in the ambidextrous use. Moreover, we believe that this relationship depends on whether entrepreneurs have a strong internal locus of control or not. We generally confirm our expectations by analyzing a global sample of student entrepreneurs. Thus, we encourage entrepreneurs to be aware of the important underlying dynamics that arise when creating a business with “family money.”
1,3,5‐Triaza‐7‐phosphaadamantane (PTA) Derived Caged Phosphines for Palladium‐Catalyzed Selective Functionalization of Nucleosides and Heteroarenes
Authors: Murthy Bandaru Siva Sankar , Bhilare Shatrughn , Schulzke Carola , Kapdi Anant R. 
Published: November 2020

AbstractPhosphines have, in combination with transition metals, played a pivotal role in the rapid development of efficient catalytic processes. Caged phosphines constitute a class of three‐dimensional scaffolds providing unique control over steric and electronic properties. The versatility of the caged phosphine ligands has been demonstrated elegantly by the groups of Verkade, Gonzalvi as well as Stradiotto. Our research group has also been working extensively for the past several years in the development of 1,3,5‐triaza‐7‐phosphaadamantane‐based caged ligands and in this personal note we have summarized these applications pertaining to the modification of biologically useful nucleosides and heteroarenes.
Ginsenoside Rb1 protects porcine oocytes against methylglyoxal damage thus it improves the quality of parthenogenetic activation and in vitro fertilization embryos
Authors: Luo Zhao‐Bo , Xuan Mei‐Fu , Han Sheng‐Zhong , Li Zhou‐Yan , Khan Nasar , Quan Biao‐Hu , Yin Xi‐Jun , Kang Jin‐Dan 
Published: November 2020

AbstractPanax ginseng, a functional food, has been widely used as an edible nourishment and medicinal supplement. Ginsenoside Rb1 is a major bioactive ingredient of ginseng, which shows very specific anti‐apoptosis and anti‐oxidant activities. Methylglyoxal (MGO) is one of intermediate products of glucose metabolism, which is absorbed easily from high sugar foods or carbonated beverages. It may involve in a variety of detrimental processes in vivo. However, it has not been fully explored the effects of ginsenoside Rb1 on MGO‐induced oocytes damage. This study found that MGO‐induced DNA damage and mitochondrial dysfunction result in the failure of porcine oocytes maturation and low in vitro development capacity of parthenogenetic activation (PA) and in vitro fertilization (IVF) embryos. Conversely, Rb1 supplementation recovered the rate of maturation, and improved in vitro development capacity of PA and IVF embryos. Rb1 also provided porcine oocytes a lower level of reactive oxygen species production, higher level of ATP content and mitochondrial membrane potential, and stimulated pluripotency gene expression in blastocysts. The findings of this study reveal ginsenoside Rb1 protects porcine oocyte from the cytotoxicity effects of methylglyoxal and provides novel perspectives for the protection of reproduction system by functional food of ginseng.
Green supply chain management in Latin America: Systematic literature review and future directions
Authors: Teixeira Adriano Alves , Moraes Tiago Estrela da Cunha , Stefanelli Nelson Oliveira , de Oliveira Jorge Henrique Caldeira , Teixeira Talita Borges , de Souza Freitas Wesley Ricardo 
Published: November 2020

AbstractThe implementation and scope of green supply chain management (GSCM) practices vary among organizations. In emerging economies, new production chain models are required, but little is known about GSCM in these countries, especially in Latin America. Thus, this paper aims to highlight the state‐of‐the‐art of GSCM in Latin America, through a systematic review of the literature (using Scopus and Web of Science databases) and suggests a research agenda with nine recommendations. Results show underexplored themes, such as GSCM benefits, GSCM and key performance indicators, and GSCM and competitive advantage. This study is the only systematic review of GSCM in Latin America, providing a useful research agenda for academics, managers, and policymakers. For instance, this paper contributes to the advancement of the UN Sustainable Development Goals (SDG) in Latin America by suggesting that scholars, practitioners, and governments shed lights on sustainable production and consumption standards (SDG 12), measures to combat climate change and its impact (SDG 13), and the best means of implementation and global partnerships for sustainable development (SDG 17).
Rademacher expansions and the spectrum of 2d CFT
Authors: Alday Luis F. , Bae Jin-Beom 
Published: November 2020

Abstract
A classical result from analytic number theory by Rademacher gives an exact formula for the Fourier coefficients of modular forms of non-positive weight. We apply similar techniques to study the spectrum of two-dimensional unitary conformal field theories, with no extended chiral algebra and c > 1. By exploiting the full modular constraints of the partition function we propose an expression for the spectral density in terms of the light spectrum of the theory. The expression is given in terms of a Rademacher expansion, which converges for spin j ≠ 0. For a finite number of light operators the expression agrees with a variant of the Poincare construction developed by Maloney, Witten and Keller. With this framework we study the presence of negative density of states in the partition function dual to pure gravity, and propose a scenario to cure this negativity.
Technik und Biomechanik der Bohr-Draht(Kirschner-Draht)-Osteosynthese bei Kindern
Authors: Slongo Theddy 
Published: November 2020

ZusammenfassungOperationszielSichere und stabile Fixierung metaphysärer sowie epiphysärer Frakturen (Salter-Harris I–IV) mittels korrekter Bohrdraht(Kirschner[K]-Draht)-Osteosynthese, in der Folge als K‑Draht-Osteosynthese (OS) bezeichnet.IndikationenGemäß der AO(Arbeitsgemeinschaft für Osteosynthesefragen)-Kinderklassifikation der langen Röhrenknochen (AO Pediatric Comprehensive Classification of Long-Bone Fractures [PCCF]) alle Salter-Harris- und metaphysären Frakturen sowie Frakturen des Fuß- und Handskelettes, unabhängig von der Repositionsart, geschlossen oder offen, sofern eine Adaptationsosteosynthese eine hinreichende Stabilität zulässt. Eine K‑Draht-OS erfordert immer eine zusätzliche Fixierung/Ruhigstellung in einem Gipsverband.KontraindikationenAlle diaphysären Frakturen, sofern ein K‑Draht nicht im Sinne der Markraumschienung verwendet wird. Nicht korrekt reponierte respektive nicht reponierbare Frakturen.OperationstechnikNach geschlossener oder offener, möglichst anatomischer Reposition werden unter Durchleuchtungskontrolle 1, 2, gelegentlich 3 K-Drähte pro Fragment eingebracht. Wichtig ist dabei, dass die K‑Drähte das zu fixierende Fragment sowie das Hauptfragment (Metaphyse) optimal fassen. Es muss daher möglich sein, mit dem Durchleuchtungsgerät eine streng seitliche sowie korrekte anteroposteriore Aufnahme machen zu können. Dabei ist darauf zu achten, dass man das Gerät in die entsprechende Ebene schwenken kann. Ein Drehen der Extremität sollte auf ein Minimum beschränkt werden. Durch eine zusätzliche Manipulation zwecks Durchleuchtung könnten die zuvor optimal reponierten Fragmente erneut dislozieren. Dies wiederum kann zu einer schlechten K‑Draht-Fixierung führen. Je nach Morphologie der Fraktur, Größe der Fragmente und Lokalisation der Fraktur (Humerus, Unterarm, Femur oder Tibia, Hand oder Fuß) muss die K‑Draht-Technik angepasst werden. Diese kann sein: monolateral gekreuzt, monolateral divergierend auf- oder absteigend oder die häufigste angewendete aufsteigend gekreuzte Technik. Die K‑Drähte werden in der Regel über Hautniveau belassen und umgebogen. Somit können sie ohne erneute Narkose in der Ambulanz entfernt werden. Man muss sich bewusst sein, dass der K‑Draht weder eine Kompressions- noch eine Neutralisations-OS ist, sondern immer nur eine Adaptation. Daher braucht eine K‑Draht-OS immer eine zusätzliche Ruhigstellung mittels Gips oder konfektionierter Schiene.WeiterbehandlungRuhigstellung im Gipsverband für 4 bis 5 Wochen abhängig vom Alter.ErgebnisseBei technisch optimal durchgeführter Fixation und korrekter Indikation für eine K‑Draht-OS sowie adäquater Nachbehandlung sind die Ergebnisse sehr gut bis gut.
Simulation of vibrationally resolved absorption spectra of neutral and cationic polyaromatic hydrocarbons
Authors: Chadwick Rebecca J. , Wickham Katherine , Besley Nicholas A. 
Published: November 2020

AbstractThe identification of the carriers of the absorption features associated with the diffuse interstellar bands (DIBs) is a long-standing problem in astronomical spectroscopy. Computational simulations can contribute to the assignment of the carriers of DIBs since variations in molecular structure and charge state can be studied more readily than through experimental measurements. Polyaromatic hydrocarbons have been proposed as potential carriers of these bands, and it is shown that simulations based upon density functional theory and time-dependent density functional theory calculations can describe the vibrational structure observed in experiment for neutral and cationic naphthalene and pyrene. The vibrational structure arises from a small number of vibrational modes involving in-plane atomic motions, and the Franck–Condon–Herzberg–Teller approximation improves the predicted spectra in comparison with the Franck–Condon approximation. The study also highlights the challenges for the calculations to enable the assignment in the absence of experimental data, namely prediction of the energy separation between the different electronic states to a sufficient level of accuracy and performing vibrational analysis for higher-lying electronic states.
Proof of the $$K(\pi , 1)$$ conjecture for affine Artin groups
Authors: Paolini Giovanni , Salvetti Mario 
Published: November 2020

AbstractWe prove the $$K(\pi ,1)$$

K
(
π
,
1
)

conjecture for affine Artin groups: the complexified complement of an affine reflection arrangement is a classifying space. This is a long-standing problem, due to Arnol’d, Pham, and Thom. Our proof is based on recent advancements in the theory of dual Coxeter and Artin groups, as well as on several new results and constructions. In particular: we show that all affine noncrossing partition posets are EL-shellable; we use these posets to construct finite classifying spaces for dual affine Artin groups; we introduce new CW models for the orbit configuration spaces associated with arbitrary Coxeter groups; we construct finite classifying spaces for the braided crystallographic groups introduced by McCammond and Sulway.
Beyond physiotherapy and pharmacological treatment for fibromyalgia syndrome: tailored tACS as a new therapeutic tool
Authors: Bernardi Laura , Bertuccelli Margherita , Formaggio Emanuela , Rubega Maria , Bosco Gerardo , Tenconi Elena , Cattelan Manuela , Masiero Stefano , Del Felice Alessandra 
Published: November 2020

AbstractFibromyalgia syndrome (FMS) is a complex pain disorder, characterized by diffuse pain and cognitive disturbances. Abnormal cortical oscillatory activity may be a promising biomarker, encouraging non-invasive neurostimulation techniques as a treatment. We aimed to modulate abnormal slow cortical oscillations by delivering transcranial alternating current stimulation (tACS) and physiotherapy to reduce pain and cognitive symptoms. This was a double-blinded, randomized, crossover trial conducted between February and September 2018 at the Rehabilitation Unit of a teaching Hospital (NCT03221413). Participants were randomly assigned to tACS or random noise stimulation (RNS), 5 days/week for 2 weeks followed by ad hoc physiotherapy. Clinical and cognitive assessments were performed at T0 (baseline), T1 (after stimulation), T2 (1 month after stimulation). Electroencephalogram (EEG) spectral topographies recorded from 15 participants confirmed slow-rhythm prevalence and provided tACS tailored stimulation parameters and electrode sites. Following tACS, EEG alpha1 ([8–10] Hz) activity increased at T1 (p = 0.024) compared to RNS, pain symptoms assessed by Visual Analog Scale decreased at T1 (T1 vs T0p = 0.010), self-reported cognitive skills and neuropsychological scores improved both at T1 and T2 (Patient-Reported Outcomes in Cognitive Impairment, T0–T2, p = 0.024; Everyday memory questionnaire, T1 compared to RNS, p = 0.012; Montréal Cognitive Assessment, T0 vs T1, p = 0.048 and T0 vs T2, p = 0.009; Trail Making Test B T0–T2, p = 0.034). Psychopathological scales and other neuropsychological scores (Trail Making Test-A; Total Phonemic Fluency; Hopkins Verbal Learning Test-Revised; Rey–Osterrieth Complex Figure) improved both after tACS and RNS but earlier improvements (T1) were registered only after tACS. These results support tACS coupled with physiotherapy in treating FMS cognitive symptoms, pain and subclinical psychopathology.
Navigating through the jungle of information. Informational self-efficacy predicts climate change-related media exposure, knowledge, and behaviour
Authors: Loy Laura S. , Hamann Karen R. S. , Reese Gerhard 
Published: November 2020

AbstractClimate change is a complex issue and understanding it is not an easy endeavour. An abundance of information is available through media and a lot of research has dealt with the question of how to best communicate this issue to the public. However, uncertainty and scepticism remain. In this paper, we argue that the subjective capability of informing oneself satisfactorily about climate change (i.e. informational self-efficacy) to reach goals like forming an opinion, evaluating political decisions regarding climate change, or behaving in a climate protective manner might be a crucial determinant of people’s engagement with the issue. In an online survey with a quota sample of German residents (N = 498), informational self-efficacy positively predicted people’s exposure to climate change communication in the media, their knowledge about the climate system and climate protective behaviours, and the extent to which they actually engaged in climate protective actions. Moreover, informational self-efficacy positively predicted climate protective behaviour and climate system knowledge indirectly through media exposure—but not behavioural knowledge. Hence, next to optimising the provided climate change communication, we suggest to strengthen people’s confidence in dealing with it through media literacy trainings and examine the causal effect of these trainings on informational self-efficacy and climate change engagement. Furthermore, the impact of different behaviours on climate change should be more often and more concretely discussed in media coverage.
Police Implementation of the Partial Sex Purchase Ban in England and Wales
Authors: Matolcsi Andrea 
Published: November 2020

AbstractA main point of contention in the policy areas of prostitution and sex trafficking is whether the purchase of sex should be criminalised, whether fully (in all circumstances) or partly (only under specific circumstances). Particularly, Europe has seen several countries either fully criminalise buying sex or insofar as the person in prostitution is subject to exploitation or coercion. An example of the latter, since 2010, it is an offence in England and Wales (UK) to buy sex with a person in prostitution who has been coerced or exploited by a third party. While the offence was heavily debated before it was adopted, there has been little empirical research on its implementation, particularly by police who are on the front line of implementation. While police statistics on the offence are of questionable reliability, indications are that there has been little application of the offence. This paper explores several potential reasons for this in the context of interviews with 10 police representatives in four areas of England. Factors such as police’s knowledge and awareness of the offence, difficulties with its application, and to what extent and in what way policing of prostitution and trafficking for sexual exploitation are taking place, may all be playing a role, but do not explain lack of use in all of the areas examined in this research. The notions that there are not enough victims for the law to be applied or that police may be resisting applying the offence because they find the strict liability element of the offence unfair were not supported by these interviews. This research is unique in finding that there may be an issue with police misunderstanding fundamental elements of the offence and what seems to be a lack of awareness of the offence. These findings have implications for the assessment of the enforceability of this and similar offences and policy discussions around such offences.
An optimised chromatin immunoprecipitation (ChIP) method for starchy leaves of Nicotiana benthamiana to study histone modifications of an allotetraploid plant
Authors: Ranawaka Buddhini , Tanurdzic Milos , Waterhouse Peter , Naim Fatima 
Published: November 2020

AbstractAll flowering plants have evolved through multiple rounds of polyploidy throughout the evolutionary process. Intergenomic interactions between subgenomes in polyploid plants are predicted to induce chromatin modifications such as histone modifications to regulate expression of gene homoeologs.Nicotiana benthamianais an ancient allotetraploid plant with ecotypes collected from climatically diverse regions of Australia. Studying the chromatin landscape of this unique collection will likely shed light on the importance of chromatin modifications in gene regulation in polyploids as well its implications in adaptation of plants in environmentally diverse conditions. Generally, chromatin immunoprecipitation and high throughput DNA sequencing (ChIP-seq) is used to study chromatin modifications. However, due to the starchy nature of matureN. benthamianaleaves, previously published protocols were unsuitable. The higher amounts of starch in leaves that co-precipitated with nuclei hindered downstream processing of DNA. Here we present an optimised ChIP protocol forN. benthamianaleaves to facilitate comparison of chromatin modifications in two closely related ecotypes. Several steps of ChIP were optimised including tissue harvesting, nuclei isolation, nuclei storage, DNA shearing and DNA recovery. Commonly available antibodies targeting histone 3 lysine 4 trimethylation (H3K4me3) and histone 3 lysine 9 dimethylation (H3K9me2) histone modifications were used and success of ChIP was confirmed by PCR and next generation sequencing. Collectively, our optimised method is the first comprehensive ChIP method for mature starchy leaves ofN. benthamianato enable studies of chromatin landscape at the genome-wide scale.
Co-production as an Emerging Methodology for Developing School-Based Health Interventions with Students Aged 11–16: Systematic Review of Intervention Types, Theories and Processes and Thematic Synthesis of Stakeholders’ Experiences
Authors: Reed Hayley , Couturiaux Danielle , Davis Marianne , Edwards Amy , Janes Edward , Kim Hyun Sue , Melendez-Torres G. J. , Murphy Simon , Rotevatn Torill Alise , Smith Jesse , Evans Rhiannon 
Published: November 2020

AbstractCo-production affords an intervention’s target population the opportunity to participate in intervention theory decision-making during the development process. This addresses the over-reliance on developing interventions through academic theories which can be devoid of contextual understanding and result in challenges to implementing school-based health programmes. There is an emergent empirical literature on co-producing school-based health interventions, but an understanding of appropriate theoretical types and processes and stakeholders’ experiences is lacking. Through the conduct of a systematic review, this study seeks to understand the types and underlying theories and processes for co-production in school-based health interventions with students aged 11–16. A thematic synthesis explored stakeholders’ experiences of the different types of co-production. A systematic search of five electronic bibliographic databases, citation tracking of included studies, and consultation with an expert international panel were employed. Of 27,433 unique papers, 30 papers representing 22 studies were retained to describe types, and 23 papers of 18 studies used to synthesise stakeholders’ experiences. Three types were identified: external, individual-level, and system-level capacity-building. Whilst this review showed variability in co-production types, stakeholders involved and processes, shared functions were identified. Students’, school staff, facilitators’ and researchers’ experiences in terms of acceptability, feasibility and undertaking decision-making are discussed. Recommendations for conceptualising and reporting co-production and process evaluations of co-produced school-based health interventions are highlighted.
Ungleichheit in globalen Wertschöpfungsketten: eine intersektionale Perspektive auf soziale Reproduktion
Authors: Sproll Martina 
Published: November 2020

ZusammenfassungDer Artikel fragt nach der Bedeutung von sozialer Ungleichheit für die Dynamik globaler Produktion. Trotz einer breiten feministischen Debatte zur Rolle von Geschlechterverhältnissen in globalen Wertschöpfungsketten seit den 1970er-Jahren wurde diese Dimension systematisch aus dem Mainstream der weiteren Theorieentwicklung ausgeblendet. Der vorliegende Beitrag schärft den Blick für soziale Ungleichheit in transnationalen Produktionsnetzen, indem zum einen die Verflechtung von bezahlter und unbezahlter sowie formeller und informeller Arbeit beleuchtet wird, die immer auch geschlechtlich strukturiert ist. Zum anderen wird die Bedeutung privater Haushalte für die Aneignung von Mehrwert durch (transnationale) Unternehmen thematisiert, die den Zusammenhang von produktiver und reproduktiver Sphäre sichtbar macht. Akkumulation in globalen Wertschöpfungsketten basiert auf der gezielten Ausnutzung von Ungleichheit und Diskriminierung, die auf der Verflechtung unterschiedlicher Ungleichheitsdimensionen wie Geschlecht, Ethnizität/Race, Klassen- bzw. Kastenzugehörigkeit, Alter oder Region beruhen. Eine intersektionale Perspektive auf Ungleichheit ist deshalb unabdingbar, um die komplexen Macht- und Herrschaftsverhältnisse zu verstehen und entsprechende Gegenmaßnahmen entwickeln zu können.