bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of the science teaching anxiety scale for preservice elementary teachers: A Rasch analysis
Authors: Novak Elena , Soyturk Ilker , Navy Shannon L. 
Published: February 2022

AbstractScience teaching anxiety is negative emotion that inhibits a teacher's ability to start, proceed, or finish a science teaching task. Despite its detrimental effects on teachers' science teaching quality and practices, there is limited research on science teaching anxiety. To advance research in this area, there is a need for a psychometrically sound instrument assessing teachers' science teaching anxiety. This study presents the development and psychometric properties of the Science Teaching Anxiety Scale (STAS) in preservice elementary teachers (N = 191) using a Rasch analysis. In addition, it examines the relationships among science teaching anxiety, science interest, and science teaching efficacy (self‐efficacy and outcome expectancy). Results indicated that the STAS has promising validity and reliability for use in future research. Moreover, science teaching anxiety and science interest were significant predictors of teaching self‐efficacy in preservice elementary teachers. Implications for researchers, teacher educators, and individuals who work with new teachers are discussed.
The Multicomponent Synergistic Effect of Sandwich Structure Hierarchical Nanofibers for Enhanced Sodium Storage
Authors: Chen Junjie , Wang Ting , Zhang Fangrong , Tian Nan , Zhang Qiuyu , Zhang Baoliang 
Published: February 2022

AbstractConstructing hierarchical micro/nanostructures as anodes for sodium ion batteries is an important approach for exploiting efficient energy storage devices. Herein, sandwich structure hierarchical nanofibers composed of hollow carbon fibers as the substrate, and MoS2 as the interlayer with Co and/or ZnS nanoparticles anchoring in carbon skeletons as the outer shell (carbon nanofiber/MoS2/Co‐ZnS⊂NC) are prepared via a multistep reaction strategy. Profiting from the unique hierarchical structure, abundant migration channels of Na+, and multicomponent synergistic effects, the rapid diffusion kinetics are ensured and the utilization of active materials is maximized. The coaxial structure can evenly disperse volumetric strain, making structural stability guaranteed. Hierarchical nanofibers deliver a high reversible capacity of 352.3 mAh g−1 at 5.0 A g−1 over 3000 cycles. A discharge capacity of 182.5 mAh g−1 is retained even after 10 000 cycles at 10.0 A g−1 as well as a high rate capacity of 202.0 mAh g−1 up to 30 A g−1. The optimal atomic ratio of Co element is further verified by the kinetic analysis. The full‐cells assembled with Na3V2(PO4)3 cathode provide a high capacity of 179.2 mAh g−1 at 1.0 A g−1 for 500 cycles. Combining in situ and ex situ characterizations and theoretical calculations, possible sodium storage mechanisms and the origin of superior electrochemical properties are revealed.
Controllable Synthesis of Web‐Footed PdCu Nanosheets and Their Electrocatalytic Applications
Authors: Zeng Tiantian , Meng Xiaomin , Huang Haowei , Zheng Linwei , Chen Haibo , Zhang Yun , Yuan Weiyong , Zhang Lian Ying 
Published: February 2022

AbstractMorphological control of noble‐metal‐based nanocrystals has attracted enormous attention because their catalytic behaviors can be optimized well by adjusting the size and shape. Herein, the controllable synthesis of web‐footed PdCu nanosheets via a facile surfactant‐free method is reported. It is discovered that the Cu(II) precursor in this synthetic system displays a critical role in growing branches along the lateral of nanosheets. This work demonstrates a Pd‐based alloy nanoarchitecture for efficient and stable electrocatalysis of both ethanal and formic acid oxidation reactions.
Polyoxometalate Ionic Sponge Enabled Dendrite‑Free and Highly Stable Lithium Metal Anode
Authors: Zhong Yuan , Su Yaqing , Huang Peng , Jiang Qiu , Lin Yue , Wu Haiyang , Hensen Emiel J. M. , Abdelkader Amr. M. , Xi Kai , Lai Chao , Chou Shulei 
Published: February 2022

AbstractMetallic lithium batteries are holding great promises for revolutionizing the current energy storage technologies. However, the formation of dendrite‐like morphology of lithium deposition caused by uneven distribution of Li+ might cause severe safety concerns of batteries. In this study, a polyoxometalate (POM) cluster, H5PMo10V2O40 (PMo10V2), is added to the conventional electrolyte that can construct a lithium‐rich layer and inhibit the growth of Li dendrites effectively. The Li‐rich layer can fill any lack of lithium ions on the surface of the metal anode, making the electric field strength consistent across the anode surface, thereby inhibiting the formation of lithium dendrites. Consequently, a significantly prolonged cyclic lifespan is obtained for both Li/Li symmetric cells and Li/LiCoO2 (Li/LCO) full cells. The cells with LCO positive maintains a high reversible specific capacity of 108.5 mAh g−1 after 300 cycles when electrolyte with PMo10V2 additive is used, compared to 31.5 mAh g−1 for the untreated electrolyte. The findings indicate that POMs endowed as “ionic sponge” can be widely deployed in lithium metal batteries.
An exploratory study on the presence of Helicobacter heilmannii and Helicobacter billis in the feces of companion dogs
Authors: Fatemi Khader Mahdi , Pourmahdi Borujeni Mahdi , Moori Bakhtiari Naghmeh , Avizeh Reza 
Published: February 2022

AbstractBackgroundCompanion animals like dogs play an important role in the lives of many people and are often considered to be members of families, but definitely, any contact with them poses an inherent risk of transmitting zoonotic pathogens. One of these pathogens is the genus Helicobacter which is linked to many disorders in human and animal.ObjectivesThe aim of this study was to investigate the presence of some zoonotic species of genus Helicobacter in companion dogs.ResultsThrough culturing in a special medium, nine samples (9%) were detected as infected (two pure and seven mixed culture). Based on multiplex‐PCR, 13 samples (13%) were infected by Helicobacter spp. although none of them were infected by H. pylori. Species‐specific PCR indicated that 38.5% or 5/13 of the samples were infected with H. heilmannii, while 15.45% or 2/13 of the samples were infected by H. billis. Multivariate logistic regression analysis showed that the age factor had a significant effect on Helicobacter spp. infection (odds ratio [OR] = 2.42, p = 0.01).ConclusionThis study revealed the negligible faecal transmission of H. pylori. Moreover, due to the detection of H. Heilmannii and H. billis in feces and their association with human gastric diseases, dog owners should be educated about the risks and transmission modes of zoonotic bacterial infections of dogs.
Introduction
Authors: Sjölander-Lindqvist Annelie 
Published: February 2022

AbstractAnthropology’s focus on the holistic dimensions of the human condition, its interest in understanding humankind’s cultural variation wherever it occurs, and its sensitivity to both similarities and differences, while never losing sight of the powers of politics, ideologies, economies, and ecologies, provide a solid foundation for the exploration and understanding of environmental communication. This book tries to make sense of how an anthropological perspective can further our understanding of the diversity of environmental communication and the different ways people—verbally and non-verbally—communicate about and with their surrounding environments. An important aspect lies in the discussion of the communicative prospects for sustainability, seeking to bring anthropology into more theoretically and empirically productive engagement with the study of environmental communication.
Arsenic Fields: Community Understandings of Risk, Place, and Landscape
Authors: Sjölander-Lindqvist Annelie 
Published: February 2022

AbstractThis is a study of the communication of environmental risk associated with the planned removal of arsenic from the copper mining fields in Riddarhyttan, central Sweden. The study was implemented using in-depth interviews with community residents and representatives from the local, regional, and national governments, as well as walk-and-talk sessions near contaminated grounds to learn about the value of these places to local people and their reflections on risk. The study identified how local residents had to navigate between messages from authorities that touching stones could be life threatening at the same time as they were told that risk was non-existent. This resulted in mixed and affective feelings regarding place, community, and the role the copper industry had played in the past. The case is an illuminating example of how perception and communication is embedded in the social and cultural reality of local communities.
Cemented long versus standard femoral stem in proximal femoral metastasis: a noninferiority single-blinded quasi-randomized clinical trial
Authors: Abdelmonem Ibrahim Mahmoud , Azmy Sherif Ishak , EL Masry Ayman Mohammad , el ghazawy Ahmed k , kotb Ahmed sayed , Bassiony Ayman Abdelaziz 
Published: February 2022

Abstract
Background and purpose
Proximal femur is a common site for metastasis, it has a significant impact on patient’s quality of life, and traditional treatment aims at protecting as much as possible from the femur. However, recent studies have demonstrated increased rate of complications and questioned the need for long stem in this high-risk group. Our purpose is to determine whether standard-length femoral stem is noninferior to long femoral stem in the treatment of proximal femoral metastasis.

Patients and methods
Between 2019 and 2021, we prospectively included 24 patients with proximal femoral metastasis leading either to impending or pathological fractures (5 and 19 cases, respectively). We included patients with lesions due to metastasis, lymphoma, or multiple myeloma. Patients were quasi-randomized based on their order of presentation into two groups based on the femoral stem length, cemented standard (group 1) and long (group 2) femoral stem. Oncological complications, survival, stem complications, and functional outcomes were recorded and analyzed using SPSS 25.

Results
24 patients were included in the final analysis, 13 case in group 1 and 11 in group 2, and mean age 57.6 years. Mean follow-up duration was 10 months, and 11 patients died of the whole-study population with mean survival of (10.85 ± 2.23, 8.82 ± 3.6) months in group 1, 2, respectively. The complication rate was higher in the standard group; however, this difference did not reach statistical significance. No difference was found between study groups regarding functional outcomes, except for VAS at 6 months which was higher in standard group.

Conclusion
We believe that the ubiquitous use of long stem in the management of proximal femoral metastasis should be questioned considering the expected patient survival and low rate of complications associated with the use of standard stem.

Clinicaltrials.gov registration number
NCT04660591.
Drilling of recycled carbon fibre–reinforced polymer (rCFRP) composites: analysis of burrs and microstructure
Authors: Geier Norbert , Poór Dániel István , Pereszlai Csongor , Tamás-Bényei Péter 
Published: February 2022

AbstractSince governments encourage sustainability, industries are making great efforts to reuse or recycle carbon fibre–reinforced polymer (CFRP) composites. Despite the promising early results concerning the material properties of recycled CFRP, there is no published knowledge available about their machinability. In this study, drilling-induced micro and macro-sized geometrical defects were analysed and compared in virgin and recycled CFRP. A total of 180 drilling experiments were carried out using uncoated solid carbide cutting tools. Six different CFRP composites were tested at different feeds. The burr characteristics and microstructure were analysed by optical and scanning electron microscopy. The analysis of variance (ANOVA) results suggest that the formation of drilling-induced burrs in CFRP reinforced by recycled chopped and nonwoven mats is less pronounced than in virgin CFRP. Micro- and macro-sized geometrical defects in both recycled and virgin milled CFRP were negligible. This study found no relevant objection to using recycled CFRP from the point of view of drilling-induced burrs and microstructure damage.
Effektives Lehren und Lernen in der Informatik, Wirtschaftsinformatik und verwandten Fachgebieten
Authors: Ellmann Mathias 
Published: February 2022

ZusammenfassungIn diesem Artikel behandeln wir unser Lehrbaummodell mit den Lehr- und Lernmethoden, welches zum effektiven Lehren und Lernen in der Informatik, Wirtschaftsinformatik und verwandten Fachgebieten hinführt. Das Lehrbaummodell hat in seinen Stamm Planung und Motivation als wichtigste Lehrmethodiken auf dem effektives Lehren und Lernen basiert. Die Blätter des Lehrbaummodells wie Kommunikation, Material, Gedächtnis, Aufmerksamkeit, Lernstörung und Aktivierung im Unterricht stellen notwendige Teile des effektiven Lehren und Lernens dar und schließlich folgt der Gipfel: die Überprüfung auf Effektivität des Unterrichts und der Lehrmethoden. Wir zeigen Wege auf, wie der Wandel von traditionellen Lehrmethoden wie des Haltens eines Vortrags oder einer Vorlesung mit wenig Interaktion zu moderneren, effektiveren Methoden durch die Verwendung des Lehrbaummodells stattfinden kann. Der Artikel zeigt auf, wie Frustration im Lehren und Lernen in der Informatik, Wirtschaftsinformatik und verwandten Fachgebieten vermieden und effektiver gelehrt und gelernt werden kann. Wir versuchen, mit diesen Artikel einen Wandel von traditionellen Lehrmethoden zu psychologisch moderneren Lehrmethoden zu ermöglichen.
Burnout among German oncologists: a cross-sectional study in cooperation with the Arbeitsgemeinschaft Internistische Onkologie Quality of Life Working Group
Authors: Helaß Madeleine , Haag Georg Martin , Bankstahl Ulli Simone , Gencer Deniz , Maatouk Imad 
Published: February 2022

Abstract
Purpose
Oncologists are at an increased risk of developing burnout, leading to negative consequences in patient care and in professional satisfaction and quality of life. This study was designed to investigate exhaustion and disengagement among German oncologists and assess the prevalence of burnout among oncologists within different professional settings. Furthermore, we wanted to examine possible relations between sociodemographic factors, the oncological setting, professional experience and different aspects of burnout.

Methods
In a cross-sectional study design, an Internet-based survey was conducted with 121 oncologists between April and July 2020 using the Oldenburg Burnout Inventory, which contains items on exhaustion, disengagement, and burnout. Furthermore, sociodemographic data of the participants were assessed. The participants were members of the Working Group Medical Oncology (Arbeitsgemeinschaft Internistische Onkologie) within the German Cancer Society.

Results
The survey showed a burnout prevalence of 43.8%, which correlated with age and professional experience; that is, the prevalence is particularly high among younger oncologists. Exhaustion is closely related to employment status; that is, it was significantly higher among employed oncologists. There were remarkably low levels of disengagement among oncologists, highlighting the own demand to fulfil job requirements despite imminent or actual overburdening in daily work.

Conclusion
More support is necessary to mitigate the professional stressors in the healthcare system. To ensure quality medical care, employees should be offered preventive mental health services early in their careers.
Fully automated quantification of cardiac chamber and function assessment in 2-D echocardiography: clinical feasibility of deep learning-based algorithms
Authors: Kim Sekeun , Park Hyung-Bok , Jeon Jaeik , Arsanjani Reza , Heo Ran , Lee Sang-Eun , Moon Inki , Yoo Sun Kook , Chang Hyuk-Jae 
Published: February 2022

AbstractWe aimed to compare the segmentation performance of the current prominent deep learning (DL) algorithms with ground-truth segmentations and to validate the reproducibility of the manually created 2D echocardiographic four cardiac chamber ground-truth annotation. Recently emerged DL based fully-automated chamber segmentation and function assessment methods have shown great potential for future application in aiding image acquisition, quantification, and suggestion for diagnosis. However, the performance of current DL algorithms have not previously been compared with each other. In addition, the reproducibility of ground-truth annotations which are the basis of these algorithms have not yet been fully validated. We retrospectively enrolled 500 consecutive patients who underwent transthoracic echocardiogram (TTE) from December 2019 to December 2020. Simple U-net, Res-U-net, and Dense-U-net algorithms were compared for the segmentation performances and clinical indices such as left atrial volume (LAV), left ventricular end diastolic volume (LVEDV), left ventricular end systolic volume (LVESV), LV mass, and ejection fraction (EF) were evaluated. The inter- and intra-observer variability analysis was performed by two expert sonographers for a randomly selected echocardiographic view in 100 patients (apical 2-chamber, apical 4-chamber, and parasternal short axis views). The overall performance of all DL methods was excellent [average dice similarity coefficient (DSC) 0.91 to 0.95 and average Intersection over union (IOU) 0.83 to 0.90], with the exception of LV wall area on PSAX view (average DSC of 0.83, IOU 0.72). In addition, there were no significant difference in clinical indices between ground truth and automated DL measurements. For inter- and intra-observer variability analysis, the overall intra observer reproducibility was excellent: LAV (ICC = 0.995), LVEDV (ICC = 0.996), LVESV (ICC = 0.997), LV mass (ICC = 0.991) and EF (ICC = 0.984). The inter-observer reproducibility was slightly lower as compared to intraobserver agreement: LAV (ICC = 0.976), LVEDV (ICC = 0.982), LVESV (ICC = 0.970), LV mass (ICC = 0.971), and EF (ICC = 0.899). The three current prominent DL-based fully automated methods are able to reliably perform four-chamber segmentation and quantification of clinical indices. Furthermore, we were able to validate the four cardiac chamber ground-truth annotation and demonstrate an overall excellent reproducibility, but still with some degree of inter-observer variability.
The Explanatory Power of Deflationary Truth
Authors: Bradley Darren 
Published: February 2022

AbstractIt is widely believed that deflationary truth has no explanatory power. I will argue that it does. Specifically, I will consider some objections to deflationary truth having explanatory power, and argue that they fail. The position which will emerge is that the deflationary concept of truth is analogous to the concept of an average. Scientists take averages to be explanatory, and I will argue that the concept of deflationary truth is explanatory in the same way. I then argue that this deflationary concept of truth motivates a theory of the property of truth which is metaphysically disunified, but that this is no obstacle to explanation. This leads to a way of understanding the deflationary/substantive distinction in terms of grounding.
Using Quotas as a Remedy for Structural Injustice
Authors: Barabás György , Szigeti András 
Published: February 2022

AbstractWe analyze a frequent but undertheorized form of structural injustice, one that arises due to the difficulty of reaching numerically equitable representation of underrepresented subgroups within a larger group. This form of structural injustice is significant because it could occur even if it were possible to completely eliminate bias and overt discrimination from hiring and recruitment practices. The conceptual toolkit we develop can be used to analyze such situations and propose remedies. Specifically, based on a simple mathematical model, we offer a new argument in favour of quotas, explore implications for policy-making, and consider the wider philosophical significance of the problem. We show that in order to reach more equitable representations, quota-based recruitment may often be practically unavoidable. Assuming that members of groups in statistical minority are more likely to quit due to their marginalization, their proportions can stabilize at a low level, preventing a shift towards more equal representation and conserving the minority status of the subgroup. We show that this argument has important implications for addressing, preventing, and remediating the structural injustice of unfair representation.
Curlicues generated by circle homeomorphisms
Authors: Signerska-Rynkowska Justyna 
Published: February 2022

AbstractWe investigate the curves in the complex plane which are generated by sequences of real numbers being the lifts of the points on the orbit of an orientation preserving circle homeomorphism. Geometrical properties of these curves such as boundedness, superficiality, local discrete radius of curvature are linked with dynamical properties of the circle homeomorphism which generates them: rotation number and its continued fraction expansion, existence of a continuous solution of the corresponding cohomological equation and displacement sequence along the orbit.
Rethinking Husserl’s lifeworld: The many faces of the world in Heidegger’s early Freiburg lecture courses
Authors: Galanti Grollo Sebastiano 
Published: February 2022

AbstractThis paper examines the concept of the world elaborated by Heidegger in the early Freiburg lecture courses of the years 1919 to 1923, in which he proposes a renewed conception of phenomenology through a comparison with Husserlian phenomenology. First, I show that although the theme of the lifeworld became central only in late Husserlian works, especially inThe Crisis of European Sciences, Husserl began to deal with this concept before 1920, anticipating some fundamental issues of theCrisis, as it results from the lectures of 1919 onNatur und Geist. Husserl had addressed the concept of the world already in the lectures of 1910/11,The Basic Problems of Phenomenology, and, subsequently, in the second book ofIdeas, which was published posthumously, but which was known to the young Heidegger. Then, I discuss the way in which Heidegger revisited the issue of the world in the early Freiburg lecture courses by means of a critique of Husserl’s analysis, focusing on perceptual experience as “environmental experience” and on the “world-character” of life. Particular emphasis is placed on the distinction between “environing-world,” “with-world,” and “self-world,” which Heidegger introduces in the lectures of 1919–1920. Finally, I point out that the Heideggerian rethinking of the concept of lifeworld is closely connected to the recognition of the immanent historicity of life, while Husserl only later takes into account the historicity of the lifeworld.