bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ruth Beutler: the woman behind Karl von Frisch
Authors: Zupanc Günther K. H. 
Published: May 2023

AbstractThe Journal of Comparative Physiology A was founded in 1924 as the Zeitschrift für vergleichende Physiologie by Karl von Frisch and Alfred Kühn. Given the marginalization of women in science at that time, it is remarkable that the first article in the Journal was authored by a female scientist, Ruth Beutler. Throughout her scientific career, she was affiliated with the Zoological Institute of the University of Munich, which, under the leadership of von Frisch, evolved into a world-class academic institution. Despite chronic health problems, Beutler was one of the first women who succeeded in obtaining the Habilitation as qualification for appointment to a professorial position. She was also one of the first scientists who applied methods from physiological chemistry to the study of zoological phenomena. Yet, for many years she was employed as a technician only, and she was never appointed to an Ordinarius (tenured full professorship) position. Her most important contributions to comparative physiology outside her own area of research were her support for, and protection of, Karl von Frisch, particularly during the Nazi era when he, as a ‘quarter-Jew,’ faced imminent threat of forced retirement; and after World War II, when her efforts as interim Ordinarius were instrumental in re-building the bombed-out Zoological Institute to persuade Karl von Frisch to return to Munich. It was also one of her observations that prompted him to revisit, and revise, his earlier (incorrect) model of how honeybees communicate, through their dances, the direction and distances of food sources from the hive.
Lagrangian particle-based simulation of waves: a comparison of SPH and PFEM approaches
Authors: Salis Nicolò , Franci Alessandro , Idelsohn Sergio , Reali Alessandro , Manenti Sauro 
Published: May 2023

AbstractLagrangian numerical methods are particularly suitable to reproduce flows involving large and rapid deformation of the domain, fluid splitting and coalescence, jets and sprays. The absence of the convective terms in the governing equations avoids numerical diffusion. This paper provides a comparative study between two Lagrangian particle models based on the Smoothed Particle Hydrodynamics (SPH) and the Particle Finite Element Method (PFEM). The description of the methods is provided; features and drawbacks of each method are compared and discussed. The introduced models, which represent widely used advanced analysis tools, are compared and validated in the simulation of five test cases: Two solitary waves, two regular wave trains and a non-linear wave-structure impact. Results from each model are similar and quite close to reference data. Therefore, both models have been validated against new test cases never simulated before, showing that these models can be effectively used for the analysis of regular and non-linear wave with structure impact.
The Relationship between Model Biases in East Asian Summer Monsoon Rainfall and Land Evaporation
Authors: Geen Ruth , Pietschnig Marianne , Agrawal Shubhi , Dey Dipanjan , Lambert F. Hugo , Vallis Geoffrey K. 
Published: May 2023

AbstractThe East Asian Summer Monsoon (EASM) provides the majority of annual rainfall to countries in East Asia. Although state-of-the-art models broadly project increased EASM rainfall, the spread of projections is large and simulations of present-day rainfall show significant climatological biases. Systematic evapotranspiration biases occur locally over East Asia, and globally over land, in simulations both with and without a coupled ocean. This study explores the relationship between evapotranspiration and EASM precipitation biases. First, idealized model simulations are presented in which the parameterization of land evaporation is modified, while sea surface temperature is fixed. The results suggest a feedback whereby excessive evapotranspiration over East Asia results in cooling of land, a weakened monsoon low, and a shift of rainfall from the Philippine Sea to China, further fueling evapotranspiration. Cross-model regressions against evapotranspiration over China indicate a similar pattern of behavior in Atmospheric Model Intercomparison Project (AMIP) simulations. Possible causes of this pattern are investigated. The feedback is not explained by an overly intense global hydrological cycle or by differences in radiative processes. Analysis of land-only simulations indicates that evapotranspiration biases are present even when models are forced with prescribed rainfall. These are strengthened when coupled to the atmosphere, suggesting a role for land-model errors in driving atmospheric biases. Coupled atmosphere-ocean models are shown to have similar evapotranspiration biases to those in AMIP over China, but different precipitation biases, including a northward shift in the ITCZ over the Pacific and Atlantic Oceans.
The Wallis Products for Fermat Curves
Authors: Gambini Alessandro , Nicoletti Giorgio , Ritelli Daniele 
Published: May 2023

AbstractAfter revisiting the properties of generalized trigonometric functions, i.e., the trigonometric function linked to the planar (Fermat) curve $$x^p+y^p=1$$

x
p

+

y
p

=
1

, using the tool of Keplerian trigonometry, introduced in (Gambini et al.: Monatsh. Math. 195, 55–72, 2021), we present the extension to this class of functions of the Wallis product, discovering connections with the representations of ordinary trigonometric functions by means of infinite products.
Information and communication technology use by students with disabilities in higher education during the COVID-19 pandemic
Authors: Kishira Hayato , Sasaki Ginga 
Published: May 2023

AbstractRecently, due to the spread of COVID-19, the implementation of remote learning has been increasing worldwide. This study aims to analyze the difficulties and convenience of using information and communication technology (ICT) for students with disabilities and changes in their perceptions of ICT use after the completion of courses for each form of remote learning. The survey included 122 students with disabilities and 314 students without disabilities via a web-based questionnaire. The questionnaire consisted of four situations, categorized according to the type of remote classes. We conducted an analysis of variance using a two-factor mixed design with disability (non-paired: two levels) × situations (paired: four levels) regarding perceptions of resistance toward ICT and self-rated comprehension as the dependent variables. Results show that students with disabilities were more positive about using ICT than students without disabilities in many items. However, before the courses that required the use of relatively new application software, such as web conferencing systems, students with disabilities showed significantly higher levels of resistance and lower levels of self-assessed comprehension. Further, a comparison of the amount of change in perceptions before and after the course reveals that students with disabilities showed significantly more improvement in negative items before the course. These results suggest the importance of providing opportunities for students with disability to learn how to use ICT and understand its convenience in an environment similar to an actual classroom, given the rapid changes occurring in ICT.
Novel observation of play behaviour between a harem holder and a bachelor group of Przewalski’s horses in the wild
Authors: Bernátková Anna , Ceacero Francisco , Oyunsaikhan Ganbaatar , Sukhbaatar Dalaitseren , Šimek Jaroslav , Komárková Martina 
Published: May 2023

Abstract
Przewalski’s horses live in stable nonterritorial families (harem) of one or more harem stallions, several mares, and their offspring. The harem stallion typically behaves aggressively towards any male intruder approaching the harem. Play behaviour is frequently observed among the group members in horses. For stallions, the most common, well-known cases of play behaviour are found between members of bachelor groups (groups of young stallions) and between the harem stallion and his offspring. The play between the harem stallion and members of the bachelor groups is, on the other hand, seemingly much rarer as a description of such events in the literature is anecdotal. In this note, we present our observation conducted in the Great Gobi B Strictly Protected Area (Mongolia) and describe the play behaviour between a Przewalski’s horse harem stallion and members of a bachelor group. The observation was done as a part of broader research during which selected Przewalski’s horses’ groups were located by binoculars in daily monitoring routines and filmed from a close distance (from 150 to 800 m). Behavioural Observation Research Interactive Software (BORIS) was used to extract data from the video recordings. The observation described in this note lasted for ∼ 180 min, during which the horses engaged in three separate bouts of play and repeated inter-group association. During the whole study (241.5 h of video recordings), this was the only observation including inter-group interactions. We observed two other events during which two harems approached each other (but never merged). Our observation is the first video recording of such an event and raises the question of how prevalent this behaviour is in the Przewalski’s horses’ restored natural populations. We conclude that this behaviour is unusual or has not been sufficiently studied in wild or feral harems. Further technological advances may help reveal more information on this topic.
Mechanical properties of animal ligaments: a review and comparative study for the identification of the most suitable human ligament surrogates
Authors: Burgio V. , Casari S. , Milizia M. , Sanna F. , Spezia G. , Civera M. , Rodriguez Reinoso M. , Bertuglia A. , Surace C. 
Published: May 2023

AbstractThe interest in the properties of animal soft tissues is often related to the desire to find an animal model to replace human counterparts due to the unsteady availability of human tissues for experimental purposes. Once the most appropriate animal model is identified, it is possible to carry out ex-vivo and in-vivo studies for the repair of ligamentous tissues and performance testing of replacement and support healing devices. This work aims to present a systematic review of the mechanical properties of ligaments reported in the scientific literature by considering different anatomical regions in humans and several animal species. This study was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method. Moreover, considering the lack of a standard protocol for preconditioning of tissues, this aspect is also addressed. Ninety-six studies were selected for the systematic review and analysed. The mechanical properties of different animal species are reported and summarised in tables. Only results from studies reporting the strain rate parameter were considered for comparison with human ligaments, as they were deemed more reliable. Elastic modulus, ultimate tensile stress, and ultimate strain properties are graphically reported identifying the range of values for each animal species and to facilitate comparison between values reported in the scientific literature in animal and human ligaments. Useful similarities between the mechanical properties of swine, cow, and rat and human ligaments have been found.
Shedding light on long-term trends in Mediterranean carnivore populations: five species, one scenario, different responses
Authors: Sereno-Cadierno Jorge , Soriguer Ramón C. , Carro Francisco 
Published: May 2023

AbstractLong-term studies of community composition and relative abundance are key tools in wildlife management and biodiversity conservation. However, few studies of this kind are available for Mediterranean carnivores, especially in the Iberian Peninsula, a hotspot of mammal biodiversity in Europe. We used 15 years of carnivore monitoring data from the Doñana National Park, one of the most representative areas for carnivores in Iberia, to obtain population trends for the main Mediterranean carnivore species. They were positive for red fox, stable for badger and Egyptian mongoose, and negative for common genet and Iberian lynx. The importance of long-term datasets and the implications of the results for the studied species at global level are discussed, above all for species whose population trends are less well known. This is the case of the Egyptian mongoose, for which we present novel information on its long-term population trend in Europe, and of the Iberian lynx, an endangered species with a clear negative trend in this well-protected area.
Low-rank tensor structure preservation in fractional operators by means of exponential sums
Authors: Casulli Angelo , Robol Leonardo 
Published: May 2023

AbstractThe use of fractional differential equations is a key tool in modeling non-local phenomena. Often, an efficient scheme for solving a linear system involving the discretization of a fractional operator is computing inverse fractional powers of the standard discretized Laplace operator. In this work, an exponential sum approximation for such fractional powers is derived. It is accurate over all positive real numbers larger than one, and allows to efficiently approximate the action of such operators on tensors stored in a variety of low-rank formats (CP, TT, Tucker). The results are relevant from a practical and theoretical perspective, as they predict the low-rank approximability of the solutions of these linear systems in low-rank tensor formats.
The More the Merrier: How Psychological Standing and Work Group Size Explain Managers’ Willingness to Communicate About Unethical Conduct in Their Work Group
Authors: Oc Burak , Kouchaki Maryam 
Published: May 2023

AbstractBusiness ethics research has long examined the dichotomy between remaining silent or reporting ethical misconduct to a third party. Little is known, however, about ethical conversations within a work group after observing misconduct. Specifically, we do not know how many members of their work group individuals choose to communicate with. These conversations could have important implications for creating an ethical workplace. We propose that psychological standing is an important driver of individuals’ decisions not to remain silent and to instead raise moral concerns with a greater number of others in their work group. In addition, integrating existing work on structural power, psychological standing, and the bystander effect, we develop a moderated mediation model with both structural power position and work group size as contextual drivers of psychological standing. Our model is supported across four studies using different designs and methodological approaches. Our results contribute to the understanding of when and why individuals raise moral concerns, and they provide insights into how an ethical context is created in organizations.
Braided Hopf Algebras and Gauge Transformations II: $$*$$-Structures and Examples
Authors: Aschieri Paolo , Landi Giovanni , Pagani Chiara 
Published: May 2023

AbstractWe consider noncommutative principal bundles which are equivariant under a triangular Hopf algebra. We present explicit examples of infinite dimensional braided Lie and Hopf algebras of infinitesimal gauge transformations of bundles on noncommutative spheres. The braiding of these algebras is implemented by the triangular structure of the symmetry Hopf algebra. We present a systematic analysis of compatible $$*$$

∗

-structures, encompassing the quasitriangular case.
Pharmacist-driven antimicrobial stewardship interventions in patients with COVID-19: a scoping review
Authors: Nasr Z. G. , Elamin W. , Basil M. , Eljaaly K. 
Published: May 2023

Abstract
Background
Coronavirus Disease 2019 (COVID-19) is a highly infectious disease that can be treated with antivirals in addition to other antimicrobials in cases of secondary or concomitant infections. This creates potential for antimicrobials misuse, which increases antimicrobial resistance (AMR). Pharmacists are known to undertake prominent roles in combatting AMR.

Aim
The aim of this review was to characterize pharmacist-driven interventions that have been performed in patients with COVID-19 globally and describe their impact on antimicrobial use.

Method
We followed the Joanna Briggs Institutes manual framework for scoping reviews in our study. Studies that reported antimicrobial stewardship (AMS) interventions performed by pharmacists in COVID-19 patients were included. Articles that did not report outcomes or did not mention pharmacists in the intervention were excluded. Restrictions included English-only articles from inception date until June 2022. Articles were searched from four databases.

Results
Eleven publications were included in the review. The most common AMS intervention was pharmacist-driven interventions reported in 63.2% of all studies, followed by guideline development and application (26.3%), and medication supply coordination (10.5%), respectively. The outcomes of the interventions were difficult to compare but showed a reduction in antimicrobial use and prevention of adverse drug reactions with a relatively high acceptance rate from physicians.

Conclusion
Pharmacists played an important role in performing AMS-related interventions in COVID-19 patients and helped in the fight against the worsening of AMR during the pandemic. The impact of pharmacist-driven AMS interventions in patients with COVID-19 seemed to be positive and improved outcomes related to antimicrobial use.
A Twofold Subjective Measure of Income Inequality
Authors: Gáspár Attila , Cervone Carmen , Durante Federica , Maass Anne , Suitner Caterina , Valtorta Roberta Rosa , Vezzoli Michela 
Published: May 2023

AbstractSocial scientists have been aiming to calculate a “subjective income Gini coefficient”of survey respondents that would describe their beliefs about income inequality in their country. Niehues (Subjective perceptions of inequality and redistributive preferences: an international comparison, Cologne Institute for Economic Research, IWTRENDS Discussion Paper, 2014) derives this estimate from respondents’ beliefs about the relative sizes of different social classes (answers to “shape of society” questions), while Kuhn (The individual perception of wage inequality: a measurement framework and some empirical evidence, Technical report, Institute of Labor Economics (IZA), 2015) estimates it using beliefs about the pay structure. We combine their efforts to calculate what we call a twofold subjective Gini coefficient, which incorporates both pieces of information independently from one another. We present the country-level distribution of perceived and desired twofold subjective Gini coefficients using the ISSP Social Inequality V survey (ISSP Research Group in International social survey programme: social inequality
v—issp 2019, 2019. https://doi.org/10.4225/13/511C71F8612C3). Accounting for both subjective class structure and pay structure yields much lower perceived and desired levels of inequality. At the country level the averages of the twofold subjective Gini coefficients are closer to actual income Gini coefficients than the previous measures. At the individual level the twofold subjective Gini coefficients are better predictors of the individual’s verbal assessment of inequality and their preferences towards redistribution.
Time series outlier removal and imputing methods based on Colombian weather stations data
Authors: Parra-Plazas Jaime , Gaona-Garcia Paulo , Plazas-Nossa Leonardo 
Published: May 2023

AbstractThe time data series of weather stations are a source of information for floods. The study of the previous wintertime series allows knowing the behavior of the variables and the result that will be applied to analysis and simulation models that feed variables such as flow and level of a study area. One of the most common problems is the acquisition and transmission of data from weather stations due to atypical values and lost data; this generates difficulties in the simulation process. Consequently, it is necessary to propose a numerical strategy to solve this problem. The data source for this study is a real database where these problems are presented with different variables of weather. This study is based on comparing three methods of time series analysis to evaluate a multivariable process offline. For the development of the study, we applied a method based on the discrete Fourier transform (DFT), and we contrasted it with methods such as the average and linear regression without uncertainty parameters to complete missing data. The proposed methodology entails statistical values, outlier detection, and the application of the DFT. The application of DFT allows the time series completion, based on its ability to manage various gap sizes and replace missing values. In sum, DFT led to low error percentages for all the time series (1% average). This percentage reflects what would have likely been the shape or pattern of the time series behavior in the absence of misleading outliers and missing data.
Missed opportunities in mixed methods EdTech research? Visual joint display development as an analytical strategy for achieving integration in mixed methods studies
Authors: Peters Mitchell , Fàbregues Sergi 
Published: May 2023

AbstractMixed methods research is becoming more prevalent in educational technology due to its potential for addressing complex educational problems by integrating qualitative and quantitative data and findings. At the same time, a growing chorus of researchers laments the quality and rigor of research in this field. Mixed methods studies which demonstrate explicit integration in educational technology research are scarce, and even fewer apply integration strategies recommended in the literature, such as visual joint displays. Failure to address the challenge of comprehensive integration may result in missed opportunities for deeper insights. To address this methodological problem, the purpose of this paper is to shed light on the procedures, opportunities, and practical challenges associated with mixed methods integration through the use of visual joint displays as an analytical tool for data interpretation and reporting in these types of designs. Using an exploratory sequential mixed methods multiple case study design as an illustrative example, we will (1) provide step-by-step guidance on how to develop a visual joint display to conduct an integrated analysis in a complex mixed methods design; (2) demonstrate how to use a display of this type to integrate meta-inferences previously generated through a series of interconnected joint displays; and (3) illustrate the benefits of integrating at the literature review, theoretical, analysis, interpretation, and reporting levels in mixed methods studies. This methodological article aims to advance knowledge in educational technology research by addressing the integration challenge in mixed methods studies and assisting researchers in this field in achieving comprehensive integration at multiple levels.