bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ethnic Culture as Related to Sexual and Reproductive Behavior in the Republic of Suriname: The Pervasiveness of Culture
Authors: Buunk Abraham P. , Van Brummen-Girigori Odette J. , Leckie Glenn L. 
Published: August 2021

AbstractWe examined the effects of culture and ethnicity on life history strategies in terms of sexual and reproductive behaviors. The sample included 500 adults, aged 25–50 years, from the five major ethnic groups in Suriname, i.e., the Maroons, Creoles, Hindustani, Javanese, and Mixed. First, there were strong gender differences: men reported to have had more sex partners and to have had their first sexual experience earlier than women, whereas women had their first child earlier and had more children than men. Second, in general, ethnicity affected life history substantially. The Maroons stood out by a relatively fast life history: they reported to have had more sexual partners, to have had their first sex and first child at an earlier age, and to have more children than all other groups. The Creoles were in general similar to the Maroons, whereas the Hindustani and the Javanese were characterized by a relatively slow life history: they reported to have had the lowest number of sexual partners, to have had their first sex and first child at the latest age, and to have had the lowest number of children. The differences between the ethnic groups were upheld when controlling for income, educational level, and father absence during childhood. A lower education was associated with reporting to have had one’s first sex as well as one’s first child at a younger age and children who grew up without a father reported to have had their first sex at a younger age.
Feeling Better: Experiences and Needs of Adolescents and Professionals Regarding Their Mentoring Relationship in Residential Youth Care
Authors: Harder Annemiek T. , Eenshuistra Annika , Knorth Erik J. 
Published: August 2021

Abstract
Background
In residential youth care, group care workers and teachers often serve as a mentor for individual adolescents. Although favorable mentoring relationships are associated with positive adolescent outcomes, few studies examined the role of mentoring in residential youth care.

Objective
The present study aims to assess adolescents’, care workers’ and teachers’ mentoring relationship needs in terms of their one-on-one conversations during residential care.

Methods
We conducted structured interviews with eleven adolescents, ten group care workers and two teachers and content analysis to assess the data

Results
All respondents are rather satisfied with their conversations, which are often concerned with how the adolescent is doing. Adolescents mostly consider their family and home-situation as difficult topics, while care workers mostly consider sexuality as a difficult topic to talk about. Although ‘improvement’ with the youth is often the aim, most adolescents report that they do not (know if they) show changes because of these conversations. Moreover, only one of the twelve professionals thinks that it is his core task to achieve behavior change with the adolescents. According to the professionals, conversations often aim at building a good relationship, coaching, determining treatment goals, and gaining insight into the adolescent. Adolescents prefer a mentor who is calm, has respect, listens, and is reluctant in giving advice. Most professionals do not use a specific method and doubt whether they want to have conversations according to a manual or support tool.

Conclusions
Despite being rather satisfied, adolescents and professionals indicate several points for improvement of one-on-one conversations.
Generating mathematical knowledge in the classroom through proof, refutation, and abductive reasoning
Authors: Komatsu Kotaro , Jones Keith 
Published: August 2021

AbstractProving and refuting are fundamental aspects of mathematical practice that are intertwined in mathematical activity in which conjectures and proofs are often produced and improved through the back-and-forth transition between attempts to prove and disprove. One aspect underexplored in the education literature is the connection between this activity and the construction by students of knowledge, such as mathematical concepts and theorems, that is new to them. This issue is significant to seeking a better integration of mathematical practice and content, emphasised in curricula in several countries. In this paper, we address this issue by exploring how students generate mathematical knowledge through discovering and handling refutations. We first explicate a model depicting the generation of mathematical knowledge throughheuristic refutation(revising conjectures/proofs through discovering and addressing counterexamples) and draw on a model representing different types of abductive reasoning. We employed both models, together with the literature on the teachers’ role in orchestrating whole-class discussion, to analyse a series of classroom lessons involving secondary school students (aged 14–15 years, Grade 9). Our analysis uncovers the process by which the students discovered a counterexample invalidating their proof and then worked via creative abduction where a certain theorem was produced to cope with the counterexample. The paper highlights the roles played by the teacher in supporting the students’ work and the importance of careful task design. One implication is better insight into the form of activity in which students learn mathematical content while engaging in mathematical practice.
Stokes drift through corals
Authors: Webber Joseph J. , Huppert Herbert E. 
Published: August 2021

AbstractMotivated by shallow ocean waves propagating over coral reefs, we investigate the drift velocities due to surface wave motion in an effectively inviscid fluid that overlies a saturated porous bed of finite depth. Previous work in this area either neglects the large-scale flow between layers (Phillips in Flow and reactions in permeable rocks, Cambridge University Press, Cambridge, 1991) or only considers the drift above the porous layer (Monismith in Ann Rev Fluid Mech 39:37–55, 2007). Overcoming these limitations, we propose a model where flow is described by a velocity potential above the porous layer and by Darcy’s law in the porous bed, with derived matching conditions at the interface between the two layers. Both a horizontal and a novel vertical drift effect arise from the damping of the porous bed, which requires the use of a complex wavenumber k. This is in contrast to the purely horizontal second-order drift first derived by Stokes (Trans Camb Philos Soc 8:441–455, 1847) when working with solely a pure fluid layer. Our work provides a physical model for coral reefs in shallow seas, where fluid drift both above and within the reef is vitally important for maintaining a healthy reef ecosystem (Koehl et al. In: Proceedings of the 8th International Coral Reef Symposium, vol 2, pp 1087–1092, 1997; Monismith in Ann Rev Fluid Mech 39:37–55, 2007). We compare our model with field measurements by Koehl and Hadfield (J Mar Syst 49:75–88, 2004) and also explain the vertical drift effects as documented by Koehl et al. (Mar Ecol Prog Ser 335:1–18, 2007), who measured the exchange between a coral reef layer and the (relatively shallow) sea above.
Index-Aware Model-Order Reduction for a Special Class of Nonlinear Differential-Algebraic Equations
Authors: Banagaaya Nicodemus , Alì Giuseppe , Grundel Sara , Benner Peter 
Published: August 2021

AbstractWe extend the index-aware model-order reduction method to systems of nonlinear differential-algebraic equations with a special nonlinear term $$\mathbf{f}(\mathbf{E}\mathbf{x}),$$

f
(
E
x
)
,

where $$\mathbf{E}$$
E
is a singular matrix. Such nonlinear differential-algebraic equations arise, for example, in the spatial discretization of the gas flow in pipeline networks. In practice, mathematical models of real-life processes pose challenges when used in numerical simulations, due to complexity and system size. Model-order reduction aims to eliminate this problem by generating reduced-order models that have lower computational cost to simulate, yet accurately represent the original large-scale system behavior. However, direct reduction and simulation of nonlinear differential-algebraic equations is difficult due to hidden constraints which affect the choice of numerical integration methods and model-order reduction techniques. We propose an extension of index-aware model-order reduction methods to a special class of nonlinear differential-algebraic equations without any kind of linearization. The proposed model-order reduction approach involves automatic decoupling of nonlinear differential-algebraic equations into nonlinear ordinary differential equations and algebraic equations, based on the decoupling of the linear differential equations obtained by ignoring the nonlinear term, thanks to an additional structural condition. This allows applying standard model-order reduction techniques to both parts without worrying about the index. The same procedure can also be used to simulate nonlinear differential-algebraic equations by standard integration schemes.
The changing position of housing estate neighbourhoods in the Helsinki metropolitan area
Authors: Lilius Johanna , Hirvonen Jukka 
Published: August 2021

AbstractThis paper addresses the under-researched phenomena of investments in the private rental markets in disadvantaged suburbs in Finland. Despite the application of a social-mixing policy in the Helsinki Metropolitan Area and the Nordic welfare model, suburban housing estate neighbourhoods built in the 1960s and 1970s have experienced a socioeconomic decline since the 1990s. According to several recent large surveys, housing estate neighbourhoods represent the least popular housing environments among Finns. Nevertheless, as the Helsinki Metropolitan Area is currently facing rapid population growth, these neighbourhoods have now become the target for heavy infill development, and ambitious city-led regeneration plans. Simultaneously, housing investment has become an opportunity in Finland for both national and, increasingly, also international real-estate investment companies, as well as for private households. We explore the resurge to invest in housing estate neighbourhoods through two case studies in the Helsinki Metropolitan Area. Using statistics and interviews with policymakers and institutional real-estate investors, as well as a review of policy documents as our data, we show the variegated ways in which the marketization and financialization of housing and urban renewal policies change the social geography of housing estates in the Helsinki Metropolitan Area.
NBAS deficiency due to biallelic c.2809C > G variant presenting with recurrent acute liver failure with severe hyperammonemia, acquired microcephaly and progressive brain atrophy
Authors: Lipiński Patryk , Greczan Milena , Piekutowska-Abramczuk Dorota , Jurkiewicz Elżbieta , Bakuła Agnieszka , Socha Piotr , Jankowska Irena , Rokicki Dariusz , Tylki-Szymańska Anna 
Published: August 2021

AbstractBiallelic pathogenic variants in the neuroblastoma amplified sequence (NBAS) gene were firstly (2015) identified as a cause of fever-triggered recurrent acute liver failure (RALF). Since then, some patients with NBAS deficiency presenting with neurologic features, including a motor delay, intellectual disability, muscular hypotonia and a mild brain atrophy, have been reported. Here, we describe a case of pediatric patient diagnosed with NBAS deficiency due to a homozygous c.2809C > G, p.(Pro937Ala) variant presenting with RALF with severe hyperammonemia, acquired microcephaly and progressive brain atrophy. Not reported in the literature findings include severe hyperammonemia during ALF episode, and neurologic features in the form of acquired progressive microcephaly with brain atrophy. The latter raises the hypothesis about a primary neurologic phenotype in NBAS deficiency.
User generated content for enhanced professional productions: a mobile application for content contributors and a study on the factors influencing their satisfaction and loyalty
Authors: Ntoa Stavroula , Margetis George , Rivera Fiona , Evans Michael , Adami Ilia , Mathioudakis Georgios , Weerakkody Rajitha , Metaxakis George , Markopoulos Ioannis , Mrak Marta , Stephanidis Constantine 
Published: August 2021

AbstractMotivated by a combination of social media, technological evolution, as well as new habits and preferences of TV content consumers, there is an increasing demand for enhancement of professional productions with user generated content. Studies have explored the potential and feasibility of this approach, indicating that footage from non-professionals can be effectively used to enrich the viewing experience. However, an important concern is whether such efforts are appealing to potential contributors, and what can actually impact their satisfaction and loyalty. Aiming to investigate these factors, this paper presents a mobile application for content contributors and a study involving 38 attendees of live events, using the application in the field. The events were hosted in two different countries, and transmitted by two well-known broadcasters. The results suggest that age, gender, technological expertise, and overall sharing attitude do not affect the satisfaction and loyalty of contributors. The differentiating factors, however, are the filming confidence and expertise of contributors, as well as the Wi-Fi/4G connectivity on-site. Implications of these findings are discussed and recommendations for similar endeavors are provided.
Numbers and their contexts: how quantified actors narrate numbers and decontextualization
Authors: Piattoeva Nelli 
Published: August 2021

AbstractThe proliferation of standardized testing and administrative statistics in compulsory education is embedded in the rise to prominence of quantified accountability as a mechanism of education governance. Numbers work by stripping away the contexts of their production and the granular and ambiguous detail of the phenomena they claim to represent. The article re-examines qualitative interviews collected during a completed international project that studied policies and practices of accountability reforms and quality evaluation in Russian school education to understand how actors involved in quantified accountability—from producers to users of large-scale assessments of learning outcomes and administrative statistical data—articulate measuring or being measured in a decontextualized manner. The article offers two theoretical contributions on the enactment of accountability policies. First, it shows the importance of analytical attention to the materiality of accountability policies, that is, their specifically numerical nature. Second, it proposes that the study of accountability enactment should address the question of how actors deal with the decontextualizing propensities of quantified accountability. I conclude that enactment of accountability is fuelled by quantified decontextualization and the diverse ways in which actors experience, make sense of and act upon it.
Human and rat microsomal metabolites of N-tert-butoxycarbonylmethamphetamine and its urinary metabolites in rat
Authors: Kakehashi Hidenao , Doi Takahiro , Wada Misato , Kamata Tooru , Shima Noriaki , Miyake Akari , Nitta Atsushi , Asai Ryutaro , Fujii Shihoko , Matsuta Shuntaro , Sasaki Keiko , Kamata Hiroe , Nishioka Hiroshi , Miki Akihiro , Hasegawa Hiroshi , Katagi Munehiro 
Published: August 2021

Abstract
Purpose
N-tert-Butoxycarbonylmethamphetamine (BocMA), a masked derivative of methamphetamine (MA), converts into MA under acidic condition and potentially acts as a precursor to MA following ingestion. To investigate the metabolism and excretion of BocMA, metabolism tests were conducted using human liver microsomes (HLM), rat liver microsomes (RLM) and rat.

Methods
BocMA metabolites were analyzed after 1000-ng/mL BocMA incubation with microsomes for 3, 8, 13, 20, 30, and 60 min. Rats were administered intraperitoneal injections (20 mg/kg) of BocMA and their urine was collected in intervals for 72 h. Metabolites were detected by liquid chromatography–tandem mass spectrometry with five authentic standards.

Results
Several metabolites including 4-hydroxy-BocMA, N-tert-butoxycarbonylephedrine and N-tert-butoxycarbonyl-cathinone were detected for HLM and RLM. In the administration test, three glucuronides of hydroxylated metabolites were detected. The total recovery values of BocMA and the metabolites during the first 72 h accounted for only 0.3% of the administered dose. Throughout the microsomal and administration experiments, MAs were not detected.

Conclusion
Hydroxylation, carbonylation and N-demethylation were proposed as metabolic pathways. However, BocMA and phase I metabolites were hardly detected in urine. This study provides useful information to interpret the possibility of BocMA intake as the cause of MA detection in biological sample.
Localised strain in fissured clays: the combined effect of fissure orientation and confining pressure
Authors: Tudisco Erika , Vitone Claudia , Mondello Cristina , Viggiani Gioacchino , Athanasopoulos Stefanos , Hall Stephen A. , Cotecchia Federica 
Published: August 2021

AbstractThis paper reports the main results of an experimental study on the mechanics of intensely fissured natural clays, extending our previous studies on scaly clay from Santa Croce di Magliano. While previous work focused on the influence of the orientation of fissures with respect to the loading direction, the present investigation specifically explores an additional, important variable: the stress level. The combined effect of fissure orientation and confining pressure was studied by setting up a large campaign of plane strain compression experiments, in which different combinations of these two variables were tested. Conventional global stress–strain measurements were complemented by measuring displacement and strain fields through two-dimensional digital image correlation. Such rich information provided a clear and consistent picture of the interplay between fissure orientation and stress level and revealed complex deformation patterns, which cannot be ignored for a proper interpretation of the material response.
Das Spießerverdikt. Invektive Umordnungen des Sozialen seit der Romantik
Authors: Engel Sonja , Schrage Dominik 
Published: August 2021

Zusammenfassung„Spießern“ wird im Deutschen in herabsetzender Absicht Engstirnigkeit und eine konformistische Lebensweise unterstellt. Der Aufsatz fasst das Spießerverdikt als ein kommunikatives Muster, das in Auseinandersetzungen um die Deutung der sozialen Ordnung eingesetzt wird, indem es die Angehörigen der Mitte als Repräsentanten der bestehenden Ordnung attackiert. Varianten des Spießerverdikts zirkulieren im deutschen Sprachraum seit dem frühen 19. Jahrhundert. Sie entwerfen gegenhegemoniale Sinnhorizonte der gesellschaftlichen Verortung und Legitimation. Um ihre Funktion bei der Erzeugung und In-Geltung-Setzung von Vorstellungen sozialer Ordnung sichtbar zu machen, wird die Herausbildung des kommunikativen Musters anhand dreier Varianten im deutschsprachigen Raum nachgezeichnet: der Philistersatire in der Romantik, der Kleinbürgerkritik in der durch Marx und Engels geprägten Klassentheorie und der antibürgerlichen Selbstinszenierung der Bohemiens. Damit wird eine kultursoziologische Perspektive auf sozialen Wandel eingenommen, die die diskursive Praxis der Herabsetzung als Faktor von Konflikten in Zeiten gesellschaftlicher Umbrüche fokussiert.
Computerlinguistische Verfahren zur Vermessung wissenschaftsdisziplinärer Kommunikation. Eine exemplarische Studie über die Berufs- und Wirtschaftspädagogik
Authors: Jahn Robert W. , Goldenstein Jan , Götzl Mathias 
Published: August 2021

ZusammenfassungWissenschaftliche Disziplinen als Kommunikations- und Diskursgemeinschaften spezieller Fachleute befassen sich nicht allein mit ihren Gegenständen sowie der eigenen Methodologie und Methodik, sondern auch mit sich selbst und der Entwicklung ihrer paradigmatischen Grundlagen. Dies hat auch in den Erziehungswissenschaften eine breite Tradition. Zur Analyse paradigmatischer Entwicklungen der Ideen- und Sozialgestalt einer Disziplin eignet sich insbesondere die Untersuchung der disziplinären Kommunikation. Interessant ist in diesem Zusammenhang vor allem die formelle (schriftliche) Kommunikation, die in disziplinären Fachzeitschriften erfolgt.Qualitative Analysen sind jedoch sehr aufwändig, insb. wenn größere Datenmengen und Zeiträume analysiert werden sollen. Zudem besteht das Problem, dass eine deduktive, thematische Analyse disziplinäre Kartierungsansätze braucht, die relativ trennscharf die disziplinären Gegenstände operationalisieren. Demgegenüber erlauben quantitativ orientierte computerlinguistische Analysen einen induktiven Zugriff auf die in Zeitschriften publizierten Themen sowie die Verarbeitung großer Datenmengen. In diesem Beitrag wird ein computerlinguistisches topic-modeling-Verfahren vorgestellt und angewandt, dass die Themen einer gesamten Zeitschrift induktiv extrahiert und jeden ihrer einzelnen Beiträge quantitativ thematisch gewichtet.Dies erfolgt am Beispiel der Berufs- und Wirtschaftspädagogik als eine erziehungswissenschaftliche Teildisziplin und der „Berufs- und Wirtschaftspädagogik – online“ als einer ihrer zentralen Fachzeitschriften. Diese hat zwei wesentliche Vorteile als Anwendungsbeispiel. Erstens liegt sie bereits in digitalisierter Form vor. Zweitens eignet sie sich zur Validierung des Verfahrens und der identifizierten Themen, da ihre einzelnen Ausgaben bereits themenbezogen sind.Es kann gezeigt werden, dass die untersuchte Zeitschrift zentrale Forschungsgegenstände der Disziplin abbildet. Das Verfahren eignet sich zudem auch, um methodische und methodologische Topics in den Beiträgen zu identifizieren. Es lässt darüber hinaus eine Verbindung zwischen der kognitiv-inhaltlichen und sozialen Dimension paradigmatischer Entwicklungen zu, da Ähnlichkeiten und Unterschiede in der thematischen Kommunikation zwischen Personen und Organisationen ermittelt werden können. So können z. B. sechs Gruppen von Universitätsstandorten identifiziert werden, die inhaltlich an ähnlichen Themen arbeiten.
Gerechtigkeitsbeurteilungen zu SchülerInnen-Lehrkraft-Interaktionen in der inklusiven Schule – Eine experimentelle Studie unter Berücksichtigung sonderpädagogischer Förderbedarfe
Authors: Kobs Scarlett , Knigge Michel , Kliegl Reinhold 
Published: August 2021

ZusammenfassungGerechtigkeitserleben spielt eine zentrale Rolle für produktives Wohlbefinden in der Schule und trägt zum Zugehörigkeitsgefühl bei. Die vorliegende Studie untersucht in einem experimentellen Design, wie die Berücksichtigung sonderpädagogischer Förderbedarfe im Sinne des Bedarfsprinzips Gerechtigkeitsbeurteilungen von SchülerInnen-Lehrkraft-Interaktionen beeinflusst. Eine Stichprobe von 275 Lehramtsstudierenden gab an, wie gerecht sie die in Textvignetten beschriebenen Unterrichtssituationen beurteilte. Es zeigte sich ein bedeutsamer Einfluss des Vorhandenseins sonderpädagogischer Förderbedarfe im „Förderschwerpunkt emotionale-soziale Entwicklung“ sowie ein signifikanter Einfluss aus der Kombination von Förderbedarfen im Bereich „Lernen“ und des gerechtigkeitstheoretischen Fokus’ der Vignetten (Verteilungsfragen oder zwischenmenschliche Gerechtigkeitsfragen). Eine Nichtbeachtung des Bedarfsprinzips in inklusiven Unterrichtssituationen führte tendenziell zu einer weniger gerechten Unterrichtswahrnehmung. Eine zusätzliche Information über eine explizite Diagnose beeinflusste die Gerechtigkeitsurteile der Befragten nicht. Die Ergebnisse weisen darauf hin, dass das Bedarfsprinzip in der Beurteilung schulischer Interaktionen bereits bei Lehramtsstudierenden eine Rolle spielt.