bluuebunny/crossref_metadata_2025_split huggingface dataset:
Teacher profiles in higher education: the move to online education during the COVID-19 crisis
Authors: Stevens T. M. , den Brok P. J. , Noroozi O. , Biemans H. J. A. 
Published: March 2023

AbstractDuring the COVID-19 pandemic, teachers were forced to move their teaching completely online. While some seized the opportunity to learn and innovate, others experienced difficulties. This study provides insights into the differences between university teachers during the COVID-19 crisis. A survey among university teachers (N = 283) was conducted to investigate their attitudes towards online teaching, beliefs about students’ learning, level of stress experienced, self-efficacy and beliefs about their own professional development. Employing a hierarchical cluster analysis, four distinct teacher profiles were found. Profile 1 was critical but eager; Profile 2 was positive but stressed; Profile 3 was critical and reluctant; Profile 4 was optimistic and easy-going. The profiles differed significantly in their use and perception of support. We suggest that teacher education research should carefully consider sampling procedures or take a person-centred research approach and that universities should develop targeted forms of teacher communication, support and policy.
National customer orientation: an empirical test across 112 countries
Authors: Mintz Ofer , Currim Imran S. , Deshpandé Rohit 
Published: March 2023

AbstractCustomer orientation is a central tenet of marketing. However, less is known about how customer orientation varies across countries and time. Mintz, Currim, and Deshpandé (Eur. J. Mark., 56: 1014–1041, 2022) propose a country-level construct, national customer orientation, and develop theoretical propositions on how a country’s wealth and average customer price sensitivity affect national customer orientation during and after global economic shocks without providing an empirical test. This paper tests drivers of national customer orientation by employing World Economic Forum and World Bank annual panel data from 112 countries between 2007 and 2017. The results show that customer orientation is a greater luxury of richer nations and price sensitivity is a partial mediator of that relationship; however, both relationships only transpire in non-recessionary times. The empirical test furthers scholarly research on national customer orientation and provides managers with country-level customer orientation benchmarks across countries and time.
Interstitial photodynamic therapy for newly diagnosed glioblastoma
Authors: Quach Stefanie , Schwartz Christoph , Aumiller Maximilian , Foglar Marco , Schmutzer Michael , Katzendobler Sophie , El Fahim Mohamed , Forbrig Robert , Bochmann Katja , Egensperger Rupert , Sroka Ronald , Stepp Herbert , Rühm Adrian , Thon Niklas 
Published: March 2023

Abstract
Purpose
Innovative, efficient treatments are desperately needed for people with glioblastoma (GBM).

Methods
Sixteen patients (median age 65.8 years) with newly diagnosed, small-sized, not safely resectable supratentorial GBM underwent interstitial photodynamic therapy (iPDT) as upfront eradicating local therapy followed by standard chemoradiation. 5-aminolevulinic acid (5-ALA) induced protoporphyrin IX was used as the photosensitizer. The tumors were irradiated with light at 635 nm wavelength via stereotactically implanted cylindrical diffuser fibers. Outcome after iPDT was retrospectively compared with a positively-selected in-house patient cohort (n = 110) who underwent complete tumor resection followed by chemoradiation.

Results
Median progression-free survival (PFS) was 16.4 months, and median overall survival (OS) was 28.0 months. Seven patients (43.8%) experienced long-term PFS > 24 months. Median follow-up was 113.9 months for the survivors. Univariate regression revealed MGMT-promoter methylation but not age as a prognostic factor for both OS (p = 0.04 and p = 0.07) and PFS (p = 0.04 and p = 0.67). Permanent iPDT-associated morbidity was seen in one iPDT patient (6.3%). Patients treated with iPDT experienced superior PFS and OS compared to patients who underwent complete tumor removal (p < 0.01 and p = 0.01, respectively). The rate of long-term PFS was higher in iPDT-treated patients (43.8% vs. 8.9%, p < 0.01).

Conclusion
iPDT is a feasible treatment concept and might be associated with long-term PFS in a subgroup of GBM patients, potentially via induction of so far unknown immunological tumor-controlling processes.
Multiple timing and spatial scaling for bifurcations
Authors: Verhulst Ferdinand 
Published: March 2023

AbstractScaling time and spatial domains often seem natural in ODEs, but unfortunately, its useful explicit form does not always agree with intuition. After reviewing the well-known methods, multiple timing and averaging, we will show that algebraic timelike variables may play a part in bifurcations. Part of this discussion is tied in with the problem of structural stability in the analysis of matrices, and another part is determined by bifurcation theory of nonlinear systems. Secondly, the theory of resonance manifolds for higher dimensional problems involving at least 2 angles will show the presence of unexpected small spatial domains that may emerge involving long timescales and containing interesting phenomena. A number of examples from mechanics are presented to demonstrate the theory.
Teacher exhaustion: The effects of disruptive student behaviors, victimization by workplace bullying, and social support from colleagues
Authors: Kollerová Lenka , Květon Petr , Zábrodská Kateřina , Janošová Pavlína 
Published: March 2023

AbstractExhaustion, as a key facet of burnout, is one of the most common risks that compromises teacher well-being and contributes to a shortage of teachers. While the school social environment has been identified as an influential context for teacher exhaustion, the relative importance of its different facets remains unclear. This study focused on the most proximal social environment in school and examined the role of teachers’ social experiences with students, fellow teachers, and leadership. The sample comprised teachers (N = 740; 77% women and 23% men) of adolescent students. In an online survey, participants reported their exhaustion and perceptions of student disruptive behaviors, victimization by workplace bullying, and social support from colleagues. A sequential linear regression controlling for gender, school type, and length of teaching experience indicated that exhaustion was positively associated with disruptive student behaviors and victimization by workplace bullying and negatively associated with social support from leadership. Regarding the individual control variables, exhaustion was higher in female teachers and in less experienced teachers. The type of school (elementary vs. secondary) did not play a role in exhaustion. The main findings suggest that to help prevent teacher exhaustion, teacher education should aim to better prepare teachers to handle disruptive student behaviors, and schools should maximize their efforts to reduce workplace bullying and foster leadership support for teachers.
Wide-Band Antenna on Flexible and Thin Substrate for Wireless Systems
Authors: Ibrahim Ahmed A. , Hassan Walaa M. , Dhasarathan Vigneswaran 
Published: March 2023

AbstractThis paper presents the design of a flexible monopole antenna for wideband applications. The proposed antenna is printed on flexible substrate material having a dielectric constant of 3 for the design and fabrication of the proposed antenna. The antenna dimensions are 3.8 cm × 4.1 cm × 0.025 cm. The antenna characteristics are investigated not only in flat conditions but also under bending configuration. Both flat and bending configurations are operated at frequency bands from 2.4 GHz up to 10 GHz with S- parameters lower than − 10 dB. The antenna parameters such as gain, efficiency, and radiation patterns are studied for both configurations. A deep study for time-domain response is discussed to validate the performance of the proposed antenna to operate at a wide band with a highly correlated response.
Symptom networks in glioma patients: understanding the multidimensionality of symptoms and quality of life
Authors: Röttgering J. G. , Varkevisser T. M. C. K. , Gorter M. , Belgers V. , De Witt Hamer P. C. , Reijneveld J. C. , Klein M. , Blanken T. F. , Douw L. 
Published: March 2023

Abstract
Purpose
To comprehend the complex relationship between symptoms and health-related quality of life (HRQoL) in patients with diffuse glioma, we applied symptom network analysis to identify patterns of associations between depression, cognition, brain tumor-related symptoms, and HRQoL. Additionally, we aimed to compare global strength between symptom networks to understand if symptoms are more tightly connected in different subgroups of patients.

Methods
We included 256 patients and stratified the sample based on disease status (preoperative vs. postoperative), tumor grade (grade II vs. III/IV), and fatigue status (non-fatigued vs. fatigued). For each subgroup of patients, we constructed a symptom network. In these six networks, each node represented a validated subscale of a questionnaire and an edge represented a partial correlation between two nodes. We statistically compared global strength between networks.

Results
Across the six networks, nodes were highly correlated: fatigue severity, depression, and social functioning in particular. We found no differences in GS between the networks based on disease characteristics. However, global strength was lower in the non-fatigued network compared to the fatigued network (5.51 vs. 7.49, p < 0.001).

Conclusions
Symptoms and HRQoL are highly interrelated in patients with glioma. Interestingly, nodes in the network of fatigued patients were more tightly connected compared to non-fatigued patients.

Implications for Cancer Survivors
We introduce symptom networks as a method to understand the multidimensionality of symptoms in glioma. We find a clear association between multiple symptoms and HRQoL, which underlines the need for integrative symptom management targeting fatigue in particular.
A systemic framework of energy efficiency in schools: experiences from six European countries
Authors: Brychkov Dmitry , Goggins Gary , Doherty Edelle , Romero Natalia , Roudil Nadine , Di Trani Antonella , Singh Abhigyan , Smit Sander , McLoughlin Eilish , de Castro Rodrigues Lima Raquel , Günbay Suzan Marie , Delmonte Branca Arthur , Hill Achim , Domegan Christine , Clifford Eoghan 
Published: March 2023

Abstract
Schools are complex physical and social institutions within national education systems. They account for significant energy consumption and like other buildings can demonstrate inefficient patterns of energy use. Poor energy performance of educational facilities is an intricate issue driven by complex causality of interconnected and dynamic factors. Addressing this issue requires a systemic approach, which is heretofore lacking. The aim of this research is to present and describe a systemic framework to facilitate energy reduction in schools across different European contexts. This transdisciplinary approach to sustainable energy use has been piloted in 13 post-primary schools located in six countries in northwest Europe. The research implements a series of planned activities and interventions, which help to unveil a systemic approach to improving energy efficiency in schools. The findings demonstrate how this approach, together with its ensuing methodologies and strategies, can contribute to reducing carbon emissions and improve knowledge and awareness around sustainable energy.
Isotope data in Migration Period archaeology: critical review and future directions
Authors: Depaermentier Margaux L. C. 
Published: March 2023

AbstractEarly Mediaeval Archaeology was long influenced by traditional narratives related to so-calledVölkerwanderungen. Based on the interpretation of ancient written sources, the “Migration Period” was traditionally perceived as a time of catastrophic changes triggered by the collapse of the Western Roman Empire and massive migration waves of “barbarian” groups across Europe. In the last decades, isotope analyses have been increasingly used to test these traditional narratives by exploring past mobility patterns, shifts in dietary habits, and changes in subsistence strategies or in socio-economic structures among early medieval societies. To evaluate the achievements of isotope studies in understanding the complexity of the so-called Migration Period, this paper presents a review of 50 recent publications. Instead of re-analysing the data per se, this review first explores the potentials and limitations of the various approaches introduced in the last decades. In a second step, an analysis of the interpretations presented in the reviewed studies questions to what extend traditional expectations are supported by isotope data from the Migration Period. Beside revising the concept of massive migrations, isotope data reveal so-far underestimated mobility patterns and open new perspectives in the investigation of early medieval world.
Acute Myocarditis Caused by Francisella tularensis: a Case Report
Authors: Bäck Anne Tuiskunen , Flygare Carolina , Eriksson Anders , Johansson Anders 
Published: March 2023

Abstract
Myocarditis is an inflammatory disease of the myocardium with either focal or diffuse involvement and usually gives rise to chest pain, dyspnea, palpitations, and fatigue. In severe cases, arrythmias, syncope, and cardiogenic shock may occur. Acute myocarditis is most commonly caused by a variety of viruses with cardiotropic properties. Rare causes of myocarditis include bacterial infections. We, herein, describe a case of acute myocarditis caused by the intracellular bacterium Francisella tularensis. A young and previously healthy male in Northern Sweden was referred to the emergency department due to intense upper-chest pain and dyspnea. ECG exhibited minimal ST-segment elevations and laboratory parameters revealed pathological levels of high-sensitivity cardiac troponin and C-reactive protein. Radiological imaging showed increased metabolism in enlarged lymph nodes in the chest and signs that could be compatible with increased metabolism in the left ventricular of the heart. The combination of acute myocarditis and enlarged lymph nodes was believed to be caused by the intracellular bacterium Francisella tularensis, endemic in the Northern Sweden, and was verified with positive serology. The patient showed full recovery after antimicrobial treatment. As this is the fifth published case of myocarditis associated with Francisella tularensis, we suggest considering tularemia in acute myocarditis in tularemia-endemic area.
Experimental monitoring of nonlinear wave interactions in crab orchard sandstone under uniaxial load
Authors: Malcolm Alison E. , Coates Lauren , Moravej Kamal , Melnikov Andrey , Butt Steve , Poduska Kristin M. 
Published: March 2023

Abstract
When two waves interact within a rock sample, the interaction strength depends strongly on the sample’s microstructural properties, including the orientation of the sample layering. The study that established this dependence on layering speculated that the differences were caused by cracks aligned with the layers in the sample. To test this, we applied a uniaxial load to similar samples of Crab Orchard Sandstone and measured the nonlinear interaction as a function of the applied load and layer orientation. We show that the dependence of the nonlinear signal changes on applied load is exponential, with a characteristic load of 11.4–12.5 MPa that is independent of sample orientation and probe wavetype (P or S); this value agrees with results from the literature, but does not support the cracks hypothesis.
Placed: Respect for Existing Value in Decolonizing Philosophy
Authors: Switzer M. Véronique 
Published: March 2023

AbstractIn “Rescuing Conservatism: A Defense of Existing Value,” G. A. Cohen offers an anticapitalist philosophy of valuing that takes as given the existence itself of particular valuable and valued things, and commitment through time to cherishing relationships to them. In this article, I argue that “being placed,” in precolonial senses, and decolonial “being in” and “seeking place,” are the givens of being valuing, living creatures among valuing, living creatures. Valuing as placed and valuing being placed are intrinsic to decolonial feminist resistance to the gendered, racialized, and denatured ideological warfare on the terms of life. Place is not one among other values; place and placed temporality must be accepted as given. In place, the past is living in the present. Placed decolonial valuing is the only resistance to solipsistic destruction of all that has value, to a coloniality that would fragment the past to destroy the life force of the capacity to value present existing and living. Thus I bring Cohen's rescuing valuable things, and the capacity to value them, to intergenerational, interspecies, temporally located placedness shared across diverse peoples prior to fifteenth- and sixteenth-century conquests and nineteenth-century imperialism, and in perpetual resistance to contemporary settler societies and coloniality.
All-cause mortality risk with different metabolic abdominal obesity phenotypes: the Rural Chinese Cohort Study
Authors: Wu Xiaoyan , Zhao Yang , Zhou Qionggui , Han Minghui , Qie Ranran , Qin Pei , Zhang Yanyan , Huang Zelin , Liu Jiong , Hu Fulan , Luo Xinping , Zhang Ming , Liu Yu , Sun Xizhuo , Hu Dongsheng 
Published: March 2023

AbstractWe aimed to investigate the association of metabolic obesity phenotypes with all-cause mortality risk in a rural Chinese population. This prospective cohort study enrolled 15 704 Chinese adults (38·86 % men) with a median age of 51·00 (interquartile range: 41·00–60·00) at baseline (2007–2008) and followed up during 2013–2014. Obesity was defined by waist circumference (WC: ≥ 90 cm for men and ≥ 80 cm for women) or waist-to-height ratio (WHtR: ≥ 0·5). The hazard ratio (HR) and 95 % CI for the risk of all-cause mortality related to metabolic obesity phenotypes were calculated using the Cox hazards regression model. During a median follow-up of 6·01 years, 864 deaths were identified. When obesity was defined by WC, the prevalence of participants with metabolically healthy non-obesity (MHNO), metabolically healthy obesity (MHO), metabolically unhealthy non-obesity (MUNO) and metabolically unhealthy obesity (MUO) at baseline was 12·12 %, 2·80 %, 41·93 % and 43·15 %, respectively. After adjusting for age, sex, alcohol drinking, smoking, physical activity and education, the risk of all-cause mortality was higher with both MUNO (HR = 1·20, 95 % CI 1·14, 1·26) and MUO (HR = 1·20, 95 % CI 1·13, 1·27) v. MHNO, but the risk was not statistically significant with MHO (HR = 0·99, 95 % CI 0·89, 1·10). This result remained consistent when stratified by sex. Defining obesity by WHtR gave similar results. MHO does not suggest a greater risk of all-cause mortality compared to MHNO, but participants with metabolic abnormality, with or without obesity, have a higher risk of all-cause mortality. These results should be cautiously interpreted as the representation of MHO is small.
The wrath of God or national hero? Nader Shah in European and Iranian historiography
Authors: Matthee Rudi 
Published: March 2023

AbstractThis article examines the way in which Iran's eighteenth-century ruler Nader Shah was portrayed in contemporary Europe as well as in Iran, and how the resulting image—half national hero, half ruthless warlord—has resonated until today. In an age short on ‘great’ leaders, Nader spoke to the imagination like no other contemporary ruler, Western or Asian. Nader's subsequent record can be read as a palimpsest, a layered series of images of multiple world conquerors, from Alexander to Napoleon. The latter, who shared Nader's humble background and evoked a similar ambivalence, represented the closest analogue, turning him into the European Nader Shah. In the modern West, Nader no longer speaks to the imagination. Modern Iranians, by contrast, have come to see him as the Iranian Napoleon. While still ambivalent about him, they admire him as the ruler who regenerated the nation and ended foreign occupation, yet his undeniable cruelty and imperialism make him an awkward national hero.
Income taxation and job creation
Authors: Röhrs Johanna 
Published: March 2023

AbstractThis paper augments the DMP model with large firms and intrafirm wage bargaining by an endogenous decision to become an entrepreneur that is based on heterogeneous entrepreneurial abilities. If workers’ wage bargaining power is not too large and the match efficiency is not too low, the decentralized market equilibrium features an inefficiently high number of entrepreneurs, because they appropriate large parts of the surplus from matches. A realistic calibration with empirically plausible parameters shows this case to be the relevant one. Consequently, introducing a tax on the profits of entrepreneurs restores the constrained first-best allocation by affecting occupational choices. It drives rather unproductive entrepreneurs out of the market since the marginal entrepreneur is affected and not the average one. Thus, the negative effects on job creation are small.
Secondary Cratering From Rheasilvia as the Possible Origin of Vesta's Equatorial Troughs
Authors: Hirata Naoyuki 
Published: March 2023

AbstractAsteroid 4 Vesta has a set of parallel troughs aligned with its equator. Although previous evaluations suggest that it is of shock fracturing tectonic origin, we propose that the equatorial troughs can be created by secondary cratering from the largest impact basin, Rheasilvia. We calculated the trajectories of ejecta particles from Rheasilvia by considering Vesta's rapid rotation. As a result, we found that secondary craters should be parallel to the latitude. In particular, if we assume that ejecta particles are launched at an initial launch velocity of approximately 350–380 m/s and a launch angle of 25°, the parallel equatorial troughs, the Divalia Fossae, can be suitably explained by secondary cratering. This model works well on objects, such as Haumea, Salacia, and Chariklo, but not on Mercury, the Moon, and regular satellites.
Genome-wide meta-analysis identifies novel loci conferring risk of acne vulgaris
Authors: Teder-Laving Maris , Kals Mart , Reigo Anu , Ehin Riin , Objärtel Telver , Vaht Mariliis , Nikopensius Tiit , Metspalu Andres , Kingo Külli 
Published: March 2023

AbstractAcne vulgaris is a common chronic skin disorder presenting with comedones, cystic structures forming within the distal hair follicle, and in most cases additionally with inflammatory skin lesions on the face and upper torso. We performed a genome-wide association study and meta-analysis of data from 34,422 individuals with acne and 364,991 controls from three independent European-ancestry cohorts. We replicated 19 previously implicated genome-wide significant risk loci and identified four novel loci [11q12.2 (FADS2), 12q21.1 (LGR5), 17q25.3 (FASN), and 22q12.1 (ZNRF3-KREMEN1)], bringing the total number of reported acne risk loci to 50. Our meta-analysis results explain 9.4% of the phenotypic variance of acne. A polygenic model of acne risk variants showed that individuals in the top 5% of the risk percentiles had a 1.62-fold (95% CI 1.47–1.78) increased acne risk relative to individuals with average risk (20–80% on the polygenic risk score distribution). Our findings highlight the Wnt and MAPK pathways as key factors in the genetic predisposition to acne vulgaris, together with the effects of genetic variation on the structure and maintenance of the hair follicle and pilosebaceous unit. Two novel loci, 11q12.2 and 17q25.3, contain genes encoding key enzymes involved in lipid biosynthesis pathways.