bluuebunny/crossref_metadata_2025_split huggingface dataset:
Teachers’ perceived time pressure, emotional exhaustion and the role of social support from the school principal
Authors: Maas Jasper , Schoch Simone , Scholz Urte , Rackow Pamela , Schüler Julia , Wegner Mirko , Keller Roger 
Published: March 2021

AbstractMany teachers experience high levels of work-related strain due to time pressure, which over time can lead to various health problems, such as emotional exhaustion. However, there is growing evidence that this could be a reciprocal effect. Moreover, it is known that perceived social support can buffer the negative effects of stress, such as time pressure, on health outcomes. Less is known about buffering effects of received social support. Based on longitudinal data of n = 1071 Swiss primary and secondary school teachers over the course of one school year, the present study examined the reciprocal relationship between teachers’ perceived time pressure and emotional exhaustion and whether received social support from the school principal buffers this relationship. Results of a random intercept cross-lagged panel model show a strong relationship between teachers’ perceived time pressure and emotional exhaustion at the between-person level, but no effects at the within-person level. Further, received social support was directly related to less perceived time pressure and less emotional exhaustion. The results showed neither evidence for reciprocal effects between perceived time pressure and emotional exhaustion nor for a buffering effect of received social support from the school principal. Concluding, present findings indicate that the receipt of social support from the school principal is a central job resource that beneficially relates to teachers’ experience of time pressure and emotional exhaustion.
Associations of social and emotional competencies, academic efficacy beliefs, and emotional distress among students in lower secondary school
Authors: Vestad Lene , Bru Edvin , Virtanen Tuomo E. , Stallard Paul N. 
Published: March 2021

AbstractThis cross-sectional study aimed to investigate how perceived social-emotional competencies (SECs), relationship skills, emotional regulation, and the ability to structure schoolwork at school and at home were associated with academic efficacy belief (AEB) and emotional distress among 1142 Norwegian eighth-grade students. The students answered an Internet-based questionnaire during school hours. Structural equation modeling was used to assess the paths of associations. In the structural model, AEB was treated as an intermediate variable predicted by the other SECs and as a predictor of emotional distress. Perceived relationship skills, emotional regulation, and the ability to structure schoolwork showed moderate to strong associations with AEB. AEB showed a strong association with emotional distress, whereas relationship skills and emotional regulation showed a moderately strong association with emotional distress. The results suggest that all SECs play a role in AEB, whereas high AEB, good perceived ability for emotional regulation, and relationship skills are linked to less emotional distress. Good perceived relationship skills, emotional regulation, and structuring of schoolwork were more strongly related to less emotional distress among females. Moreover, emotional regulation and structuring of schoolwork were more strongly associated with AEB for females. These findings may indicate that these SECs may be more essential to emotional well-being among female adolescent students.
Einsam(er) seit der Coronapandemie: Wer ist besonders betroffen? – psychologische Befunde aus Deutschland
Authors: Lippke Sonia , Keller Franziska , Derksen Christina , Kötting Lukas , Ratz Tiara , Fleig Lena 
Published: March 2021

Zusammenfassung
Hintergrund
Soziale Isolation ist ein Risikofaktor für Einsamkeit und damit für gesundheitliche Beeinträchtigungen. Veränderungen im Zusammenhang mit der Coronapandemie in Deutschland gilt es besser zu verstehen.

Fragestellung
Ziel der Studie war es, Einsamkeit und assoziierte Faktoren vor und während der Coronapandemie in Deutschland systematisch zu untersuchen. Die Fragestellungen waren: 1. Wie einsam fühlen sich Menschen vor und während der Coronapandemie? 2. Wie viele Menschen fühlen sich seit Beginn der Coronapandemie einsamer? 3. Wie viele Menschen berichten über gesundheitliche Belastungen während der Coronapandemie?

Material und Methoden
Im Jahr 2019 (vor der Coronapandemie) wurden 1003 und im Jahr 2020 (während der Coronapandemie) 1050 Erwachsene online befragt (51 % Frauen; 18–90 Jahre).

Ergebnisse
Es fühlten sich 10,8 % vs. 26,6 % der Befragten vor bzw. seit der Coronapandemie mehrfach pro Woche oder täglich einsam. Alleinlebende, Frauen und Jüngere fühlten sich häufiger einsam. Seit der Coronapandemie fühlten sich 30,8 % einsamer, v. a. Jüngere. Von starken gesundheitlichen Belastungen berichteten 18,9 %, dies hing mit jüngerem Alter, verschiedenen Sorgen/Ängsten und Einsamkeit zusammen.

Diskussion
Die höhere Ausprägung der Einsamkeit und Sorgen während der Coronapandemie sollte bei verhaltensbezogenen Maßnahmen zur Prävention der psychischen und körperlichen Beeinträchtigungen sowie behördlichen Maßnahmen berücksichtigt werden. Jüngere Menschen und Alleinlebende könnten profitieren, indem sie zu gezielten Bewältigungsstrategien (z. B. angemessener Nutzung digitaler Medien) ermutigt werden.
Can a dam type of an alpine lake be derived from lake geometry? A negative result
Authors: Emmer Adam , Cuřín Vojtěch 
Published: March 2021

AbstractGlacial lake outburst floods (GLOFs) represent one of the most serious hazard and risk in deglaciating high mountain regions worldwide and the need for GLOF hazard and risk assessment is apparent. As a consequence, numerous region- and nation-wide GLOF assessment studies have been published recently. These studies cover large areas and consider hundreds to thousands of lakes, prioritizing the hazard posed by them. Clearly, certain simplification is required for executing such studies, often resulting in neglecting qualitative characteristics which would need manual assignment. Different lake dam types (e.g., bedrock-dammed, moraine-dammed) are often not distinguished, despite they control GLOF mechanism (dam overtopping/dam breach) and thus GLOF magnitude. In this study, we explore the potential of easily measurable quantitative characteristics and four ratios to approximate the lake dam type. Our dataset of 851 lakes of the Cordillera Blanca suggests that while variances and means of these characteristics of individual lake types differ significantly (F-test, t-test), value distribution of different geometrical properties can’t be used for the originally proposed purpose along the spectra. The only promising results are obtained for extreme values (selected bins) of the ratios. For instance, the low width to length ratio indicates likely moraine-dammed lake while the high value of ratio indicating round-shape of the lake indicates increased likelihood of bedrock-dammed lake. Overall, we report a negative result of our experiment since there are negligible differences of relative frequencies in most of the bins along the spectra.
The Influence of 3d and 4d Transition Metals on the Glass Forming Ability of Ternary FeCo-Based Alloys
Authors: Śniadecki Z. 
Published: March 2021

Abstract
Thermodynamic modeling was used to determine enthalpies of formation and other thermodynamic parameters describing glass forming ability of Fe-Co-TM (TM = V, Nb, Cr, Mo) alloys. FeCo-based alloys are considered as candidates for applications as high magnetic flux density materials due to their high magnetic saturation and low magnetic anisotropy. Nevertheless, mechanical properties, especially the lack of ductility, are their main weakness. Therefore, further optimization by vitrification, further heat treatment and alloying should be considered. As the most crucial step is the synthesis of amorphous precursors, discussion is concentrated on the effect of transition metal substitution on the glass forming ability. The highest glass forming ability was reported for Fe-Co-Nb alloys. It can be also noted that the driving force for vitrification can be improved by substitution of Fe by other transition elements, as glass forming ability parameter ∆P

HS
reaches the lowest values for Fe-less compositions.
Particulate matter 10 (PM10): persistence and trends in eight European capitals
Authors: Caporale Guglielmo Maria , Gil-Alana Luis A. , Carmona-González Nieves 
Published: March 2021

AbstractThis paper examines the statistical properties of daily PM10in eight European capitals (Amsterdam, Berlin, Brussels, Helsinki, London, Luxembourg, Madrid and Paris) over the period 2014–2020 by applying a fractional integration framework; this is more general than the standard approach based on the classical dichotomy between I(0) stationary and I(1) non-stationary series used in most other studies on air pollutants. All series are found to be characterised by long memory and fractional integration, with orders of integration in the range (0, 1), which implies that mean reversion occurs and shocks do not have permanent effects. Persistence is the highest in the case of Brussels, Amsterdam and London. The presence of negative trends in Brussels, Paris and Berlin indicates some degree of success in reducing pollution in these capitals.
Friend or foe?—comparing party reactions to Fridays for Future in a party system polarised between AfD and Green Party
Authors: Berker Lars E. , Pollex Jan 
Published: March 2021

AbstractFridays for Future has risen as a new environmental movement pushing politicians to take action against climate change. However, its interaction with other political actors, most importantly political parties, has hardly been addressed systematically by scientific research. In this article, we take stock of party reactions to the movement on the national and subnational level in Germany. Furthermore, we investigate possible explanations for variances in these reactions in a comparison of subnational party organisations and thereby, focus on dynamics of party competition, especially on the impact of the Green Party as established contender and of the populist radical right AfD and its new role in environmental politics. We show that party reactions to the movement vary widely reflecting a clear divide on the left-right-spectrum. While centre-left parties, particularly the Green Party, support the movement, centre-right parties are utmost cautious and the populist radical right AfD stands out with a blatantly hostile attitude. Though indications for the impact of party competition dynamics were minor, we observed a strong polarisation on the climate issue that may take effect in the near future.
Development of Groundwater Irrigation in Telangana State: Challenges, Management and Way Forward
Authors: Madhnure Pandith , B. Lavanya 
Published: March 2021

Abstract
Groundwater based irrigation, which was started in India as early as “Indus Civilizations” got impetus during 3rd five-year plan. In India, at present 78 m ha of irrigation potential is created and 80 percent is utilized. One of the World’s highest user of groundwater is India with 63 percent of its dynamic groundwater resources. Similarly, Telangana State is also utilizing the dynamic groundwater resources up to 65 percent. Groundwater a reliable source of irrigation with high yields and brings equity among its users as ~99 % of structures are owned by individuals. In the state, well irrigation increased from ~0.46 lakh ha from 1875 to 23.35 lakh ha during 2017-18 and well density increased to ~13 wells/ km2 leading to decrease in irrigation potential under each well to &lt; 1 ha. As a result of it many challenges like water logging & salinity in canal command areas, over-exploitation leading to de-saturation of shallow aquifers, underutilization in north eastern part, groundwater pollution (both geogenic and anthropogenic) and sustainability, etc have cropped up. The management steps taken up in water sector like water transfer through KLIP, providing protected water supply through Mission Bhagiratha, de-siltation through Mission Kakatiya, forest rejuvenation through Haritha Haram, construction of various ARS, modernization of canals, conjunctive use of surface and groundwater, user centred aquifer level groundwater management, tank management, IEC activities etc brought positive changes in water availability in the state more particularly surface water. In order to sustain these efforts, formation of WUA at watershed/village level for agricultural planning, change in cropping pattern from highly intensive paddy to ID crops more particularly from non-command areas, conjunctive use of water, warabandhi (on/off) method of releasing irrigation water, developing intercepting drains, soil treatment, declaring crop holidays, separate electric grids for agriculture and domestic supply, legally separating water and land rights and strict implementation of regulatory measures. The other measures suggested are policy interventions that involve regulatory mechanisms and linking village-based institutions to government departments that manage groundwater etc.
VSI LC filter optimized by a genetic algorithm from connected to island microgrid operation
Authors: Lopez Juan R. , Cruz Pedro Ponce , Gutierrez Arturo Molina 
Published: March 2021

AbstractIn microgrids (MG) with a high penetration of renewable energy sources (RES) power converters are used to regulate the produced energy to a single voltage and frequency reference value across the MG. Adequate incorporation of an LC filter at the output of power electronic devices allows the attenuation of harmful harmonics that can be introduced to the MGs energy bus. By traditional methods, LC filter values can be calculated by means of the power rating, switching frequency, cutoff frequency, and using the bode frequency domain. Nonetheless, in the transition from a connected to an autonomous MG operation, the calculated LC filter can lead to high harmonic injection. As a result, a tuning methodology capable of obtaining the right set of parameters for the LC filter for a transition event can improve the performance of the MG. This work optimizes the LC output parameters with respect to the size of the filter components, the IEEE Std 519-2014, and bandwidth of the filter, within a bounded region of values subjected to performance conditions such as voltage output, and the produced total harmonic distortion (THD) measurements during the transition from a connected to an autonomous operation. In a case study, genetic algorithm optimization is used to obtain the LC filter parameters and compared to a conventional arithmetic methodology to obtain the values of the filter. The optimization results in a set of values that lead to a higher harmonic attenuation after the transition rather than a conventional method using the switching frequency as the main design factor.
Clinical genetics in transition—a comparison of genetic services in Estonia, Finland, and the Netherlands
Authors: Vrijenhoek T. , Tonisson N. , Kääriäinen H. , Leitsalu L. , Rigter T. 
Published: March 2021

AbstractGenetics has traditionally enabled the reliable diagnosis of patients with rare genetic disorders, thus empowering the key role of today’s clinical geneticists in providing healthcare. With the many novel technologies that have expanded the genetic toolkit, genetics is increasingly evolving beyond rare disease diagnostics. When placed in a transition context—like we do here—clinical genetics is likely to become a fully integral part of future healthcare and clinical genetic expertise will be required increasingly outside traditional clinical genetic settings. We explore transition effects on the thinking (culture), organizing (structure), and performing (practice) in clinical genetics, taking genetic healthcare in Estonia, Finland, and the Netherlands as examples. Despite clearly distinct healthcare histories, all three countries have initially implemented genetic healthcare in a rather similar fashion: as a diagnostic tool for predominantly rare congenital diseases, with clinical geneticists as the main providers. Dynamics at different levels, such as emerging technologies, biobanks and data infrastructure, and legislative frameworks, may require development of a new system attuned with the demands and (historic) context of specific countries. Here, we provide an overview of genetic service provisions in Estonia, Finland, and the Netherlands to consider the impact of historic and recent events on prospective developments in genetic healthcare.
Failure mode analysis on compression of lattice structures with internal cooling channels produced by laser powder bed fusion
Authors: Virgillito E. , Aversa A. , Calignano F. , Lombardi M. , Manfredi D. , Ugues D. , Fino P. 
Published: March 2021

AbstractConformal cooling coils have been developed during the last decades through the use of additive manufacturing (AM) technologies. The main goal of this study was to analyze how the presence of an internal channel that could act as a conformal cooling coil could affect compressive strength and quasi-elastic gradient of AlSi10Mg lattice structures produced by laser powder bed fusion (LPBF). Three different configurations of samples were tested in compression at 25 °C and 200 °C. The reference structures were body centered cubic (BBC) in the core of the samples with vertical struts alongZ(BCCZ) lattices in the outer perimeter, labelled as NC samples. The main novelty consisted in inserting a straight elliptical channel and a 45° elliptical channel inside the BCCZ lattice structures, labelled as SC and 45C samples respectively. All the samples were then tested in as-built (AB) condition, and after two post process heat treatments, commonly used for AlSi10Mg LPBF industrial components, a stress relieving (SR) and a T6 treatment. NC lattice structures AB exhibited an overall fragile fracture and therefore the SC and 45C configuration samples were tested only after thermal treatments. The test at 25 °C showed that all types of samples were characterized by negligible variations in their quasi-elastic gradients and yield strength. On the contrary, the general trend of stress-strain curves was influenced by the presence of the channel and its position. The test at 200 °C showed that NC, SC and 45C samples after SR and T6 treatments exhibited a metal-foam like deformation.
Exploring associations between personality trait facets and emotional, psychological and social well-being in eating disorder patients
Authors: de Vos Jan Alexander , Radstaak Mirjam , Bohlmeijer Ernst T. , Westerhof Gerben J. 
Published: March 2021

Abstract
Purpose
Personality functioning is strongly linked to well-being in the general population. Yet, there is a lack of scientific knowledge about the pathways between personality trait facets and emotional, psychological and social well-being in ED patients. The general aim was to examine potential associations between maladaptive personality trait facets and the three main dimensions of well-being.

Methods
Participants were 1187 female eating disorder patients who were referred for specialized treatment. Patients were diagnosed with anorexia nervosa (31.7%), bulimia nervosa (21.7%), binge eating disorder (11%) and other specified eating disorders (35.5%). The Personality Inventory for the DSM 5 (PID-5) was used to measure 25 trait facets, and well-being was measured with the Mental Health Continuum Short Form (MHC-SF). Multiple hierarchical regression analyses were applied to examine potential associations between personality and well-being while controlling for background and illness characteristics.

Results
Personality trait facets led to a statistically significant increase of the explained variance in emotional (38%), psychological (39%), and social well-being (26%) in addition to the background and illness characteristics. The personality trait facets anhedonia and depression were strongly associated with all three well-being dimensions.

Conclusion
Personality traits may play an essential role in the experience of well-being among patients with EDs. To promote overall mental health, it may be critical for clinicians to address relevant personality trait facets, such as anhedonia and depression, associated with well-being in treatment.

Level of evidence
Level V, cross-sectional descriptive study.
Perspectives and limits of cancer treatment in an oldest old population
Authors: Di Capua Beatrice , Bellieni Andrea , Fusco Domenico , Gambacorta Maria Antonietta , Tagliaferri Luca , Villani Emanuele Rocco , Bernabei Roberto , Valentini Vincenzo , Colloca Giuseppe Ferdinando 
Published: March 2021

Abstract
Background
Population of oldest old will grow dramatically in the next future and cancer, physiologically related to aging, will be very prevalent among them. Lack of evidence is a huge problem to manage cancer in oldest old and will be more and more in the next years.

Aims
Our purpose was to investigate the characteristics of a population of oldest old patients with cancer treated in the Radiation Oncology Unit of Fondazione Policlinico A. Gemelli IRCCS.

Methods
We conducted a retrospective study. The primary outcome was to evaluate which characteristics of the population could influence the choice of oncological treatment (with radical or non-radical intent).

Results
We identified a total of 348 patients: 140 were on follow-up; 177 were under treatment; 31 were considered not eligible for treatments. Patients under treatment had a high comorbidity index (mean Charlson Comorbidity Index 5.4), and a high prevalence of polypharmacy (mean number of drugs 5.6). More than half (53.1%) was treated with radical intent. Patients treated with radical intent were 1 year younger (87.1 years old vs 88.1 years old), more performant (ECOG 0.7 vs 1.3), and had less prevalence of metastatic neoplasia (6.4% vs 34.9%); comorbidities and drugs did not show differences in the two groups.

Conclusion
Oldest old, usually not considered in international guidelines, are treated for oncological disease, often with radical intent. The treatment seems not to be tailored considering comorbidities but on performance status.
Will–skill–tool (WST) model of technology integration in teaching science and mathematics in the Philippines
Authors: Sasota Randolf S. , Cristobal Ruby R. , Sario Imelda S. , Biyo Josette T. , Magadia Joselito C. 
Published: March 2021

AbstractThe proliferation of information and communication technologies (ICT) in the twenty-first century has challenged the status quo of educational setting and led to a paradigm shift in teaching and learning processes. ICT use and integration in teaching then, becomes an essential component of pedagogical processes to have an effective teacher–student interaction and to optimize learning. While past studies have already established evidence that attitude toward ICT (will), ICT skills (skill), and availability of ICT resources (tool) elements are indeed important contributors to the integration of ICT in teaching, little attention has been paid yet to differences in these elements and in this model of ICT integration between subject areas of science and mathematics. Thus, this study aims to examine the significant differences in these factors between science and mathematics (S&M) teaching guided by the Will–Skill–Tool (WST) model developed by Christensen and Knezek (2001, 2008). Using independent samples t test and multiple linear regression, results show that science teachers had higher scores in will, skill, tool, and ICT integration indices compared to mathematics teachers. Findings also revealed that WST model of ICT integration differs between science and mathematics areas, particularly in terms of which among the factors had the strongest influence on ICT integration. The study recommends distinct approaches in providing capacity training development on ICT integration for teachers considering the context of subject specific area.