bluuebunny/crossref_metadata_2025_split huggingface dataset:
An examination of the temporal order of helping behaviours and emotional exhaustion
Authors: Jang Seulki , Allen Tammy D. , Kim Eunsook , Cho Seonghee 
Published: March 2020

AbstractAn emerging body of research has investigated the relationship between helping (as a type of organizational citizenship behaviour) and emotional exhaustion (as an aspect of employee health). Research has demonstrated a significant relationship between helping and emotional exhaustion, but the theoretical arguments for the causal direction vary across studies. Specifically, some researchers have conceptualized helping as an outcome of emotional exhaustion, while others have regarded helping as a predictor of emotional exhaustion. This lack of theoretical clarity in directionality hinders the field's ability to summarize existing empirical findings cohesively and elucidate theoretical mechanisms. Therefore, this study attempts to clarify the theoretical directionality between helping and emotional exhaustion using four waves of data collected at 6‐month intervals. Autoregressive cross‐lagged analyses with auto‐correlations revealed that more helping was associated with less future emotional exhaustion from Wave 1 to Wave 2, but from Wave 2 to Wave 3, the directionality reversed, as less emotional exhaustion significantly predicted more future helping, and from Wave 3 to Wave 4, both prediction directions were no longer significant. The findings suggest that helping and emotional exhaustion reciprocally affect each other, though the reciprocal pattern may disappear across time. The present study sheds light on the theoretical relationship between helping and emotional exhaustion, and provides theoretical and practical implications.
Application of security reference architecture to Big Data ecosystems in an industrial scenario
Authors: Moreno Julio , Gómez Javier , Serrano Manuel A. , B. Fernandez Eduardo , Fernández‐Medina Eduardo 
Published: March 2020

SummaryBig Data environments are typically very complex ecosystems; this means that implementing them is complicated. One possible technique with which to address this complexity is the use of abstraction. Reference architecture (RA) can be useful for an improved understanding of the main components of Big Data. Herein, we propose a security RA that includes the management of security concerns and provides the main elements of a Big Data ecosystem. Application of this architecture to real‐world scenarios facilitates its refinement and improves its usefulness. In this article, we present a case study of a real‐world Big Data ecosystem implemented in a banking environment. This ecosystem was developed by everis, an NTT company with which we collaborated for this study. To conduct this validation case study, a map was established between the elements of the Big Data ecosystem implemented and our proposal. Consequently, a series of valuable lessons that can improve both our architecture and the security of the Big Data environment were obtained. These include recommendations for a set of best practices such as the use of security patterns.
Effect of Crystalline and Double Helical Structures on the Resistant Fraction of Autoclaved Corn Starch with Different Amylose Content
Authors: Soler Adrian , Mendez‐Montealvo Guadalupe , Velazquez‐Castillo Rodrigo , Hernández‐Gama Regina , Osorio‐Diaz Perla , Velazquez Gonzalo 
Published: March 2020

AbstractThe aim of this work is to investigate the effect of the crystalline and the double helical structures on the resistant starch (RS) fraction of autoclaved corn starch with different amylose content. Normal (NS) and high amylose (HS) corn starches are modified by autoclaving at 105, 120, and 135 °C. Autoclaving causes structure disorganization in NS or structural rearrangements in HS. The RS increases from 2.1% to 5.5% in NS autoclaved at 135 °C and from 12.7% to 30.2% in HS autoclaved at 120 °C. The RS is correlated to Te in NS (r = 0.73) and HS (r = 0.79), indicating that the double helical crystallites with high thermal stability (Te = 176.8–193.6 °C) are responsible for the increase of RS. In autoclaved HS, the RS is correlated to the degree of order (DO) (r = 0.82) suggesting that the strengthened associations between double helices contribute to the RS formation. The results lead to the possibility of controlling the resistance by modifying the starch structure using autoclaving process. This research highlights that the organization of the double helical structure is more important than the crystalline order to form resistant corn starch.
The origin of allotetraploid Lepisorus inaequibasis (Polypodiaceae) and paternal bias in its morphology and abiotic niche
Authors: Zhao Cun‐Feng , Wei Ran , Xiang Qiao‐Ping , Zhang Xian‐Chun 
Published: March 2020

AbstractLepisorus inaequibasis is thought to be of hybrid origin due to its leaf shape and sporangia being intermediate between those of its putative progenitors. Subsequent molecular studies have supported its hybrid origin, but its progenitors have not been determined. Here, we performed molecular phylogenetic analysis, flow cytometry (FCM), morphological character observation, and ecological niche modelling (ENM) to elucidate the origin of L. inaequibasis. The phylogenetic trees inferred from single‐copy nuclear genes (pgiC and gapCp “short”) confirm the hybrid origin of L. inaequibasis from Lepisorus waltonii and Lepisorus jakonensis. Chloroplast DNA (cpDNA) phylogeny indicates that L. jakonensis is the maternal progenitor. All populations of L. inaequibasis share a single cpDNA haplotype identical to the lineage of L. jakonensis in the central Himalayas; thus, we hypothesize that L. inaequibasis originated in the central Himalaya region and dispersed to east Himalaya and Hengduan Mountain regions. Based on FCM, L. inaequibasis is tetraploid, while its progenitors are diploid. Principal component analysis of rhizome scales and observations of sporangial annuli indicated a high degree of morphological similarity between L. inaequibasis and its paternal progenitor species, L. waltonii. The ENM results showed that L. inaequibasis has a relatively high niche identity value with L. waltonii. Therefore, we conclude that L. inaequibasis is an allotetraploid that originated through hybridization between the diploid species L. waltonii and L. jakonensis. This allotetraploid species shows clear paternal bias in both its morphological characters and its ecological niche.
Impact of isolation and fiducial cuts on qT and N-jettiness subtractions
Authors: Ebert Markus A. , Tackmann Frank J. 
Published: March 2020

Abstract
Kinematic selection cuts and isolation requirements are a necessity in experimental measurements for identifying prompt leptons and photons that originate from the hard-interaction process of interest. We analyze how such cuts affect the application of the qT and N -jettiness subtraction methods for fixed-order calculations. We consider both fixed-cone and smooth-cone isolation methods. We find that kinematic selection and isolation cuts both induce parametrically enhanced power corrections with considerably slower convergence compared to the standard power corrections that are already present in inclusive cross sections without additional cuts. Using analytic arguments at next-to-leading order we derive their general scaling behavior as a function of the subtraction cutoff. We also study their numerical impact for the case of gluon-fusion Higgs production in the H → γγ decay mode and for pp → γγ direct diphoton production. We find that the relative enhancement of the additional cut-induced power corrections tends to be more severe for qT, where it can reach an order of magnitude or more, depending on the choice of parameters and subtraction cutoffs. We discuss how all such cuts can be incorporated without causing additional power corrections by implementing the subtractions differentially rather than through a global slicing method. We also highlight the close relation of this formulation of the subtractions to the projection-to-Born method.
Background field method for nonlinear sigma models in nonrelativistic string theory
Authors: Yan Ziqi , Yu Matthew 
Published: March 2020

Abstract
We continue the study of nonrelativistic string theory in background fields. Nonrelativistic string theory is described by a nonlinear sigma model that maps a relativistic worldsheet to a non-Lorentzian and non-Riemannian target space geometry, which is known to be string Newton-Cartan geometry. We develop the covariant background field method in this non-Riemannian geometry. We apply this background field method to compute the beta-functions of the nonlinear sigma model that describes nonrelativistic string theory on a string Newton-Cartan geometry background, in presence of a Kalb-Ramond two-form and dilaton field.
Higher-order Sudakov resummation in coupled gauge theories
Authors: Billis Georgios , Tackmann Frank J. , Talbert Jim 
Published: March 2020

Abstract
We consider the higher-order resummation of Sudakov double logarithms in the presence of multiple coupled gauge in. The associated evolution equations depend on the coupled β functions of two (or more) coupling constants αa and αb, as well as anomalous dimensions that have joint perturbative series in αa and αb. We discuss possible strategies for solving the system of evolution equations that arises. As an example, we obtain the complete three-loop (NNLL) QCD⊗QED Sudakov evolution factor. Our results also readily apply to the joint higher-order resummation of electroweak and QCD Sudakov logarithms.As part of our analysis we also revisit the case of a single gauge interaction (pure QCD), and study the numerical differences and reliability of various methods for evaluating the Sudakov evolution factor at higher orders. We find that the approximations involved in deriving commonly used analytic expressions for the evolution kernel can induce noticeable numerical differences of several percent or more at low scales, exceeding the perturbative precision at N3LL and in some cases even NNLL. Therefore, one should be cautious when using approximate analytic evolution kernels for high-precision analyses.
Two-element structures modulo primitive positive constructability
Authors: Bodirsky Manuel , Vucaj Albert 
Published: March 2020

AbstractPrimitive positive constructions have been introduced in recent work of Barto, Opršal, and Pinsker to study the computational complexity of constraint satisfaction problems. Let $${\mathfrak {P}}_{\mathrm {fin}}$$Pfin be the poset which arises from ordering all finite relational structures by pp-constructability. This poset is infinite, but we do not know whether it is uncountable. In this article, we give a complete description of the restriction $${\mathfrak {P}}_{\mathrm {Boole}}$$PBoole of $${\mathfrak {P}}_{\mathrm {fin}}$$Pfin to relational structures on a two-element set. We use $${\mathfrak {P}}_{\mathrm {Boole}}$$PBoole to present the various complexity regimes of Boolean constraint satisfaction problems that were described by Allender, Bauland, Immerman, Schnoor and Vollmer.
Double‐Tract Reconstruction Designed to Allow More Food Flow to the Remnant Stomach After Laparoscopic Proximal Gastrectomy
Authors: Fujimoto Daisuke , Taniguchi Keizo , Kobayashi Hirotoshi 
Published: March 2020

AbstractPurposeLaparoscopic proximal gastrectomy (LPG) is a function‐preserving surgery performed on patients with cancer of the upper third of the stomach. However, if much of the ingested food passes through the jejunum, LPG might function broadly like a total gastrectomy. We devised a jejunogastrostomy with double‐tract reconstruction (DTR) to ensure that most food flows easily to the remnant stomach.MethodsA side‐to‐side jejunogastrostomy was created between the remnant stomach's posterior wall and the jejunum 10 cm below the esophagojejunostomy, and the common stab incision was also closed with a linear stapler. The jejunogastrostomy was created as a delta‐shaped anastomosis by using only linear staplers. The 15 patients who underwent delta‐shaped anastomosis from 2017 to 2018 were retrospectively reviewed to collect and analyze their surgical and postoperative outcomes, including nutritive conditions, in comparison to the reconstruction that was performed before then.ResultsOperative times and postoperative complications were not significantly different compared to the previous reconstruction. We confirmed significant differences in operative bleeding and passage of food through the remnant stomach. The level of nutritional indicators at the end of postoperative year one did not tend to be lower, but total weight loss (TWL) and %TWL were significantly lower. As expected, there was a correlation between differences in jejunogastrostomy type and postoperative malnutrition.ConclusionsThis method devised for intracorporeal DTR provided patients with improved postoperative nutritional status by directing more food through the remnant stomach after LPG.
Homogenized Daily Relative Humidity Series in China during 1960–2017
Authors: Li Zhen , Yan Zhongwei , Zhu Yani , Freychet Nicolas , Tett Simon 
Published: March 2020

AbstractSurface relative humidity (RH) is a key element for weather and climate monitoring and research. However, RH is not as commonly applied in studying climate change, partly because the observation series of RH are prone to inhomogeneous biases due to non-climate changes in the observation system. A homogenized dataset of daily RH series from 746 stations in Chinese mainland for the period 1960–2017, ChinaRHv1.0, has been developed. Most (685 or 91.82% of the total) station time series were inhomogeneous with one or more break points. The major breakpoints occurred in the early 2000s for many stations, especially in the humid and semi-humid zones, due to the implementation of automated observation across the country. The inhomogeneous biases in the early manual records before this change are positive relative to the recent automatic records, for most of the biased station series. There are more break points detected by using the MASH (Multiple Analysis of Series for Homogenization) method, with biases mainly around −0.5% and 0.5%. These inhomogeneous biases are adjusted with reference to the most recent observations for each station. Based on the adjusted observations, the regional mean RH series of China shows little long-term trend during 1960–2017 [0.006% (10 yr)−1], contrasting with a false decreasing trend [−0.414% (10 yr)−1] in the raw data. It is notable that ERA5 reanalysis data match closely with the interannual variations of the raw RH series in China, including the jump in the early 2000s, raising a caveat for its application in studying climate change in the region.
The Role of Perceived Inter-Ethnic Classroom Climate in Adolescents’ Engagement in Ethnic Victimization: For Whom Does it Work?
Authors: Bayram Özdemir Sevgi , Özdemir Metin 
Published: March 2020

AbstractImmigrant and minority youth are at risk of experiencing victimization due to their ethnic, cultural, or religious background. Despite an increasing number of studies that aims at understanding the consequences of being the target of such negative experiences, little attention has been paid to the factors that might counteract the occurrence of ethnic victimization. The present study aimed to address this gap in knowledge by investigating the possible role of school context. Specifically, the present study examined the extent to which perceived positive contact norms in class and teachers’ reactions to ethnic victimization are linked to engagement in ethnic victimization. It also examined whether such links differ across adolescents with different levels of tolerance toward immigrants. The sample included 963 adolescents residing in Sweden (Mage = 13.11, SD = 0.41; 46% girls). The results showed that perceived positive contact norms in class were associated with a lower likelihood of engagement in ethnic victimization across youth with different levels of tolerance toward immigrants. When adolescents perceived their teachers as not tolerating ethnic victimization, those with high levels of tolerance were less likely to engage in it. However, teacher reactions did not affect the behaviors of adolescents with low and moderate levels of tolerance toward immigrants. The findings indicate the importance of classroom context and teachers in counteracting negative interactions among students of diverse backgrounds.
Tsunami evacuation simulation considering road blockage by collapsed buildings evaluated from predicted strong ground motion
Authors: Ito Eri , Kawase Hiroshi , Matsushima Shinichi , Hatayama Michinori 
Published: March 2020

AbstractTsunami evacuation simulations are often used to determine necessary countermeasures that will reduce human loss effectively after earthquakes and subsequent tsunamis. However, so far there has been no simulation for the estimated building damage using up-to-date knowledge of seismic engineering. In this study, in order to clarify the effect of building damage on a tsunami evacuation, we first predicted building damage based on the nonlinear response analysis for a realistic strong ground motion and then simulated a tsunami evacuation considering road blockage due to the collapsed buildings. We used one district in Tanabe City in Wakayama Prefecture in Japan where we expect to have a 12 m of tsunami height after an earthquake along the Nankai Trough plate boundary. We found that the prepared capacity of evacuation sites is not enough to let everyone evacuate and that the number of survivors increases by 3–4% if all of the buildings and houses are seismically reinforced. Considering this, plus 1% of expected casualties inside the collapsed houses, it appears to be not as efficient to reinforce buildings and houses to prevent human loss in comparison with increasing the capacity of tsunami evacuation sites in the target district. However, the damage to building and houses will cause a lot of side effects which are not considered here, but will prolong the evacuation time. Thus, we concluded that we need to reinforce the buildings and houses as well as consider the appropriate placement, number, and capacity of the evacuation sites.
Two-sided ultrasonic surface rolling process of aeroengine blades based on on-machine noncontact measurement
Authors: Yao Shulei , Cao Xian , Liu Shuang , Gong Congyang , Zhang Kaiming , Zhang Chengcheng , Zhang Xiancheng 
Published: March 2020

AbstractAs crucial parts of an aeroengine, blades are vulnerable to damage from long-term operation in harsh environments. The ultrasonic surface rolling process (USRP) is a novel surface treatment technique that can highly improve the mechanical behavior of blades. During secondary machining, the nominal blade model cannot be used for secondary machining path generation due to the deviation between the actual and nominal blades. The clamping error of the blade also affects the precision of secondary machining. This study presents a two-sided USRP (TS-USRP) machining for aeroengine blades on the basis of on-machine noncontact measurement. First, a TS-USRP machining system for blade is developed. Second, a 3D scanning system is used to obtain the point cloud of the blade, and a series of point cloud processing steps is performed. A local point cloud automatic extraction algorithm is introduced to extract the point cloud of the strengthened region of the blade. Then, the tool path is designed on the basis of the extracted point cloud. Finally, an experiment is conducted on an actual blade, with results showing that the proposed method is effective and efficient.
Gesundheits-Apps als Instrumente der Prävention? – Eine Interviewstudie zu Potenzialen für das hausärztliche Setting
Authors: Wangler Julian , Jansky Michael 
Published: March 2020

Zusammenfassung
Hintergrund
Angesichts massenhafter Verfügbarkeit und Nutzung von Gesundheits-Apps stellt sich die Frage, wie diese sich so ins Gesundheitswesen integrieren lassen, dass positive Effekte bei Prävention und Therapie erzielt werden können. Die Hausarztmedizin ist ein vielversprechendes Anwendungsgebiet.

Ziel der Arbeit
Die Studie geht der Frage nach, welche Sichtweisen Hausärzte in Bezug auf Gesundheits-Apps vertreten. Neben der Akzeptanz und wahrgenommenen Einsatzpotenzialen werden bisherige Erfahrungen mit Apps in der Patientenversorgung beleuchtet. Ebenso wird eruiert, welche Hindernisse bei der Nutzbarmachung von Apps bestehen.

Material und Methoden
Im Zuge qualitativer Interviews wurden zwischen Juli und Oktober 2019 insgesamt 35 Hausärzte in Hessen befragt.

Ergebnisse
Positiv eingestellte Ärzte heben Motivations- und Compliance-Vorteile aufgrund einer App-Nutzung hervor; skeptische Ärzte sind misstrauisch in Bezug auf Datensicherheit, das ordnungsgemäße Funktionieren von Apps und rechtliche Fragestellungen bei der Einbeziehung solcher Programme. Zudem besteht die Sorge vor einer Mehrbelastung. Gleichwohl nehmen die meisten Interviewten einen Nutzen von Gesundheits-Apps wahr, wenn es um präventions-, erinnerungs- und lebensstilunterstützende Funktionen geht. Eine Mehrheit wünscht sich verbindliche Datenschutz- und Qualitätsstandards, eine klare Rechtslage in Bezug auf die App-Anwendung und Tools, die einen Überblick verfügbarer Apps ermöglichen.

Diskussion
Hausärzte sind sich der positiven Beiträge, die Gesundheits-Apps im Bereich der Gesundheitsvorsorge haben können, bewusst. Allerdings bestehen Vorbehalte und Unsicherheiten hinsichtlich der Überschaubarkeit, Transparenz und Sicherheit von Apps. Diese Bedenken sollten adressiert werden, um Voraussetzungen für eine erfolgreiche Integration von Gesundheits-Apps in die allgemeinärztliche Versorgung zu schaffen.
Zu den Zusammenhängen zwischen paraphilen Störungen, Persönlichkeitsstörungen und Sexualdelinquenz
Authors: Hörburger Theres Anna , Habermeyer Elmar 
Published: March 2020

ZusammenfassungStudien zeigen einen robusten Zusammenhang zwischen psychischen Störungen und Sexualdelinquenz. Im Vergleich zur Allgemeinbevölkerung sind bei Sexualstraftätern sowohl paraphile Störungen als auch Persönlichkeitsstörungen überrepräsentiert. Auch zeigen persönlichkeits- und paraphil gestörte Sexualstraftäter gegenüber Sexualdelinquenten ohne solche Diagnosen neben anderen psychischen Störungen häufiger psychosoziale Auffälligkeiten, Schwierigkeiten im Bereich der Behandlung und ungünstigere Legalprognosen. Es lassen sich zudem deliktspezifische Unterschiede beobachten: Vergewaltiger und Sexualmörder weisen diagnostisch eher Persönlichkeitsstörungen aus dem Cluster B und einen sexuellen Sadismus auf, während Täter mit Kindern als Opfern vermehrt im Cluster C zu finden sind und mit einer Pädophilie diagnostiziert werden. Diskutiert werden unterschiedliche Hypothesen zu den Verbindungen zwischen Sexualdelinquenz und Persönlichkeits- sowie paraphilen Störungen. Diagnostisch relevante Normabweichungen in Sexualität und Persönlichkeit bieten zwar keine monokausale Erklärung für die Entstehung und Aufrechterhaltung von Sexualdelinquenz, sind jedoch oftmals elementar für ein umfassendes Deliktverständnis und bedürfen in der Planung und Umsetzung der Behandlung von Sexualstraftätern besonderer Aufmerksamkeit.