bluuebunny/crossref_metadata_2025_split huggingface dataset:
Smartphone applications for physical activity promotion from physical education
Authors: Gil-Espinosa Francisco Javier , Nielsen-Rodríguez Adriana , Romance Ramón , Burgueño Rafael 
Published: May 2022

AbstractSmartphone applications (apps) are thought to be an adequate instructional strategy not only to improve the quality of the teaching in physical education (PE), but also to effectively promote leisure-time physical activity (PA) of adolescent students in this context. Although the use of smartphone apps has been generalized in PE, little is known about the curricular approach of smartphone apps to be implemented by teacher to teach specific curricular contents in PE lessons. Therefore, the aim of this research was threefold: a) to conduct a systematic search for smartphone apps focused on PA and sport; b) to assess the features, content and quality of every included smartphone app; and c) to analyze the relationships between every selected app and the secondary PE curriculum. Systematic searches were completed on Google Play Store from January 2021 to March 2021. Apps were included when they met: main goal focused on PA and sport; permitted use by underage; they are free; user scores of at least 4. The app selection process was carried out by several reviewers and concordance measures were estimated. Additionally, an app quality assessment was independently conducted by three reviewers. A total of 18 apps focused on PA were included. Particularly, eight apps were suitable for fitness, health and quality of life curricular content; two for sports content; four for body expression content; and four apps for outdoor PA content. The mean quality score was 4.00. Apps could be helpful for teachers to implement the secondary PE curriculum and effectively promote PA among adolescent students.
On Coase and COVID-19
Authors: Allen Darcy W. E. , Berg Chris , Davidson Sinclair , Potts Jason 
Published: May 2022

AbstractFrom an epidemiological perspective, the COVID-19 pandemic is a public health crisis. From an economic perspective, it is an externality and a social cost. Strikingly, almost all economic policy to address the infection externality has been formulated within a Pigovian analysis of implicit taxes and subsidies directed by a social planner drawing on social cost-benefit analysis. In this paper we examine the alternative economic methodology of the externality. We seek to understand how an exchange-focused and institutional analysis provides a better understanding of how to minimise social cost. Our Coasean framework allows us to further develop a comparative institutional analysis of the pandemic response.
Can you do all in one professional label? Complementarity, substitution, and independence effects in academic life
Authors: Carli Giacomo , Rita Tagliaventi Maria 
Published: May 2022

AbstractThe diffusion of evaluation systems based on research excellence has been confronting scholars with the dilemma of how to combine the different activities and roles characterizing the academic profession. Besides research, other types of knowledge transfer and academic citizenship, i.e., the service activities and roles carried out on behalf of the university within and outside organizational boundaries, are in fact cornerstones of universities’ functioning that allow for their thriving and need to be valued. This study investigates the complementarity, substitution, and independence effects between the various types of knowledge transfer and academic citizenship in a sample of 752 Italian academics working in business schools. We collected data combining different sources including CVs, publication records, and national datasets. Multivariate path analysis was employed to measure covariances between knowledge transfer and academic citizenship. We contribute to the debate on academic citizenship by showing that public and discipline-based service are complementary to knowledge transfer activities, while institutional service is independent from knowledge transfer. Remarkably, journal papers are research outcomes complementary to most academic activities, and the same holds true for dissemination at workshops and conferences. Running counter dominant rhetoric, this study testifies to the likelihood of faculty being “all-round” professionals. We disclose that activities and roles are influenced by academics’ previous pathways and research grants and discuss the need to value academic citizenship in performance measurement systems.
Primary prevention implantable cardioverter-defibrillator use in non-ischemic dilated cardiomyopathy based on arrhythmic risk stratification and left ventricular reverse remodeling prediction﻿
Authors: Muhammed Ahmed , Abdelazeem Mohamed , Elewa Mohamed Gamaleldin , Sharief Mohamed , Ammar Ahmed 
Published: May 2022

AbstractSudden cardiac death (SCD) and significant ventricular arrhythmias in patients with dilated cardiomyopathy (DCM) have been markedly reduced over the last couple of decades as a result of the advances in pharmacological and non-pharmacological treatment. Primary prevention implantable cardioverter-defibrillator (ICD) plays an important role in the treatment of patients at risk of SCD caused by ventricular arrhythmias. However, the arrhythmic risk stratification in patients with DCM remains extremely challenging, and the decision for primary prevention ICD implantation based on left ventricular ejection fraction (LVEF) solely appears to be insufficient. This review provides an update on current evidence for primary prevention ICD implantation, arrhythmic risk stratification, and left ventricular reverse remodeling (LVRR) prediction in patients with DCM in addition to most recent guideline recommendations for primary prevention ICD implantation in DCM patients and a proposed multiparametric algorithm based on arrhythmic risk stratification and left ventricular reverse remodeling (LVRR) prediction to better identify patients who are likely to benefit from primary prevention ICD.
Human factors in cobot era: a review of modern production systems features
Authors: Faccio Maurizio , Granata Irene , Menini Alberto , Milanese Mattia , Rossato Chiara , Bottin Matteo , Minto Riccardo , Pluchino Patrik , Gamberini Luciano , Boschetti Giovanni , Rosati Giulio 
Published: May 2022

AbstractCollaborative robots are increasingly common in modern production systems, since they allow to merge the productivity of automated systems with the flexibility and dexterity of manual ones. The direct interaction between the human and the robot can be the greatest advantage and the greatest limit of collaborative systems at the same time, depending on how it affects human factors like ergonomics and mental stress. This work presents an overview of collaborative robotics considering three main dimensions: robot features, modern production systems characteristics and human factors. A literature review on how such dimensions interact is addressed and a discussion on the current state of the art is presented, showing the topics that have been already widely explored and the research gaps that should be fulfilled in the future.
Distinct CD8 T Cell Populations with Differential Exhaustion Profiles Associate with Secondary Complications in Common Variable Immunodeficiency
Authors: Klocperk Adam , Friedmann David , Schlaak Alexandra Emilia , Unger Susanne , Parackova Zuzana , Goldacker Sigune , Sediva Anna , Bengsch Bertram , Warnatz Klaus 
Published: May 2022

Abstract

Purpose
Common variable immunodeficiency (CVID) is the most frequent symptomatic primary immunodeficiency, with heterogeneous clinical presentation. Our goal was to analyze CD8 T cell homeostasis in patients with infection only CVID, compared to those additionally affected by dysregulatory and autoimmune phenomena.

Methods
We used flow and mass cytometry evaluation of peripheral blood of 40 patients with CVID and 17 healthy donors.

Results
CD8 T cells are skewed in patients with CVID, with loss of naïve and increase of effector memory stages, expansion of cell clusters with high functional exhaustion scores, and a highly activated population of cells with immunoregulatory features, producing IL-10. These findings correlate to clinically widely used B cell-based EURO classification. Features of exhaustion, including loss of CD127 and CD28, and expression of TIGIT and PD-1 in CD8 T cells are strongly associated with interstitial lung disease and autoimmune cytopenias, whereas CD8 T cell activation with elevated HLA-DR and CD38 expression predict non-infectious diarrhea.

Conclusion
We demonstrate features of advanced differentiation, exhaustion, activation, and immunoregulatory capabilities within CD8 T cells of CVID patients. Assessment of CD8 T cell phenotype may allow risk assessment of CVID patients and provide new insights into CVID pathogenesis, including a better understanding of mechanisms underlying T cell exhaustion and regulation.
A probabilistic framework for particle-based reaction–diffusion dynamics using classical Fock space representations
Authors: del Razo Mauricio J. , Frömberg Daniela , Straube Arthur V. , Schütte Christof , Höfling Felix , Winkelmann Stefanie 
Published: May 2022

AbstractThe modeling and simulation of stochastic reaction–diffusion processes is a topic of steady interest that is approached with a wide range of methods. At the level of particle-resolved descriptions, where chemical reactions are coupled to the spatial diffusion of individual particles, there exist comprehensive numerical simulation schemes, while the corresponding mathematical formalization is relatively underdeveloped. The aim of this paper is to provide a framework to systematically formulate the probabilistic evolution equation, termed chemical diffusion master equation (CDME), that governs particle-based stochastic reaction–diffusion processes. To account for the non-conserved and unbounded particle number of this type of open systems, we employ a classical analogue of the quantum mechanical Fock space that contains the symmetrized probability densities of the many-particle configurations in space. Following field-theoretical ideas of second quantization, we introduce creation and annihilation operators that act on single-particle densities and provide natural representations of symmetrized probability densities as well as of reaction and diffusion operators. These operators allow us to consistently and systematically formulate the CDME for arbitrary reaction schemes. The resulting form of the CDME further serves as the foundation to derive more coarse-grained descriptions of reaction–diffusion dynamics. In this regard, we show that a discretization of the evolution equation by projection onto a Fock subspace generated by a finite set of single-particle densities leads to a generalized form of the well-known reaction–diffusion master equation, which supports non-local reactions between grid cells and which converges properly in the continuum limit.
Policy’s role in democratic conflict management
Authors: Hinterleitner Markus , Sager Fritz 
Published: May 2022

AbstractThis article proposes rethinking democratic conflict management by acknowledging the increasingly important role policy plays in it. As the debate on the health of democracy intensifies, research on how democracies manage and absorb political and societal conflicts becomes broadly relevant. Existing theories and perspectives view conflict management through the lens of elections and other institutional mechanisms, or they examine the social and economic preconditions for successful conflict management while inadequately understanding how policies contribute to conflict management. The article develops a theoretical framework that allows for the analysis of how policies’ material and interpretive effects influence societal conflicts and thereby strengthen (or weaken) democracy. While the article focuses on hypothesis-generation rather than hypothesis-testing, it draws on a large variety of policy and case examples to corroborate and illustrate the theoretical expectations embodied in the framework. Insights into policy’s role in democratic conflict management expand our understanding of the challenges to democracy in the twenty-first century and create new possibilities for comparative, policy-focused research into what makes democracy work.
Strategies to acquire and use phosphorus in phosphorus-impoverished and fire-prone environments
Authors: Lambers Hans , de Britto Costa Patrícia , Cawthray Gregory R. , Denton Matthew D. , Finnegan Patrick M. , Hayes Patrick E. , Oliveira Rafael S. , Power Simon C. , Ranathunge Kosala , Shen Qi , Wang Xiao , Zhong Hongtao 
Published: May 2022

Abstract
Background
Unveiling the diversity of plant strategies to acquire and use phosphorus (P) is crucial to understand factors promoting their coexistence in hyperdiverse P-impoverished communities within fire-prone landscapes such as in cerrado (South America), fynbos (South Africa) and kwongan (Australia).

Scope
We explore the diversity of P-acquisition strategies, highlighting one that has received little attention: acquisition of P following fires that temporarily enrich soil with P. This strategy is expressed by fire ephemerals as well as fast-resprouting perennial shrubs. A plant’s leaf manganese concentration ([Mn]) provides significant clues on P-acquisition strategies. High leaf [Mn] indicates carboxylate-releasing P-acquisition strategies, but other exudates may play the same role as carboxylates in P acquisition. Intermediate leaf [Mn] suggests facilitation of P acquisition by P-mobilising neighbours, through release of carboxylates or functionally similar compounds. Very low leaf [Mn] indicates that carboxylates play no immediate role in P acquisition. Release of phosphatases also represents a P-mining strategy, mobilising organic P. Some species may express multiple strategies, depending on time since germination or since fire, or on position in the landscape. In severely P-impoverished landscapes, photosynthetic P-use efficiency converges among species. Efficient species exhibit rapid rates of photosynthesis at low leaf P concentrations. A high P-remobilisation efficiency from senescing organs is another way to use P efficiently, as is extended longevity of plant organs.

Conclusions
Many P-acquisition strategies coexist in P-impoverished landscapes, but P-use strategies tend to converge. Common strategies of which we know little are those expressed by ephemeral or perennial species that are the first to respond after a fire. We surmise that carboxylate-releasing P-mobilising strategies are far more widespread than envisaged so far, and likely expressed by species that accumulate metals, exemplified by Mn, metalloids, such as selenium, fluorine, in the form of fluoroacetate, or silicon. Some carboxylate-releasing strategies are likely important to consider when restoring sites in biodiverse regions as well as in cropping systems on P-impoverished or strongly P-sorbing soils, because some species may only be able to establish themselves next to neighbours that mobilise P.
Can truth relativism account for the indeterminacy of future contingents?
Authors: Besson Corine , Hattiangadi Anandi 
Published: May 2022

AbstractJohn MacFarlane has recently argued that his brand of truth relativism provides the best solution to the puzzle of future contingents: assertions about the future that express propositions that are metaphysically neither necessary nor impossible. In this paper, we show that even if we grant all of the metaphysical, semantic and pragmatic assumptions in terms of which MacFarlane sets and aims to solve the puzzle, his truth relativism is not apt to solve the problem of future contingents. We argue that the theory fails to vindicate the intuition that future contingent propositions are neither true nor false, leaving the theory open to a charge of Reductio. We show that these problems cannot be answered while preserving the core tenets of truth relativism.
On the Long and Short-Range Adhesive Interactions in Viscoelastic Contacts
Authors: Violano G. , Afferrante L. 
Published: May 2022

AbstractRecently, tribologists have shown increasing interest in rate-dependent phenomena occurring in viscoelastic fractures. However, in some cases, conflicting results are obtained despite the use of similar theoretical models. For this reason, we try to shed light on the effects that long and short-range adhesion has on the pull-off force in the contact of viscoelastic media by exploiting a recently developed numerical model. We find that, in the limit of long-range adhesion, the unloading velocity has little effect on the pull-off force, which is close to the value predicted by Bradley for rigid bodies. In such case, the detachment process is characterized by a uniform bond-breaking of the contact area, and viscous dissipation involves the bulk material. For medium(short)-range adhesion, the pull-off force is instead a monotonic increasing function of the pulling velocity and, at high speeds, reaches a plateau that is a function of the adiabatic surface energy. In this case, the detachment process is similar to the opening of a circular crack, and viscous dissipation is localized at the contact edge.
Deterministic annealing with Potts neurons for multi-robot routing
Authors: David Jennifer , Rögnvaldsson Thorsteinn , Söderberg Bo , Ohlsson Mattias 
Published: May 2022

AbstractA deterministic annealing (DA) method is presented for solving the multi-robot routing problem with min–max objective. This is an NP-hard problem belonging to the multi-robot task allocation set of problems where robots are assigned to a group of sequentially ordered tasks such that the cost of the slowest robot is minimized. The problem is first formulated in a matrix form where the optimal solution of the problem is the minimum-cost permutation matrix without any loops. The solution matrix is then found using the DA method is based on mean field theory applied to a Potts spin model which has been proven to yield near-optimal results for NP-hard problems. Our method is bench-marked against simulated annealing and a heuristic search method. The results show that the proposed method is promising for small-medium sized problems in terms of computation time and solution quality compared to the other two methods.
3D localization of vena contracta using Doppler ICE imaging in tricuspid valve interventions
Authors: Nisar Hareem , Fakim Djalal , Bainbridge Daniel , Chen Elvis C. S. , Peters Terry 
Published: May 2022

Abstract
Purpose
Tricuspid valve (TV) interventions face the challenge of imaging the anatomy and tools because of the ‘TEE-unfriendly’ nature of the TV. In edge-to-edge TV repair, a core step is to position the clip perpendicular to the coaptation gap. In this study, we provide a semi-automated method to localize the VC from Doppler intracardiac echo (ICE) imaging in a tracked 3D space, thus providing a pre-mapped location of the coaptation gap to assist device positioning.

Methods
A magnetically tracked ICE probe with Doppler imaging capabilities is employed in this study for imaging three patient-specific TVs placed in a pulsatile heart phantom. For each of the valves, the ICE probe is positioned to image the maximum regurgitant flow for five cardiac cycles. An algorithm then extracts the regurgitation imaging and computes the exact location of the vena contracta on the image.

Results
Across the three pathological, patient-specific valves, the average distance error between the detected VC and the ground truth model is $$({1.22 \pm 2.00})$$

(

1.22
±
2.00

)

mm. For each of the valves, one case represented the outlier where the algorithm misidentified the vena contracta to be near the annulus. In such cases, it is recommended to retake the five-second imaging data.

Conclusion
This study presented a method for ultrasound-based localization of vena contracta in 3D space. Mapping such anatomical landmarks has the potential to assist with device positioning and to simplify tricuspid valve interventions by providing more contextual information to the interventionalists, thus enhancing their spatial awareness. Additionally, ICE can be used to provide live US and Doppler imaging of the complex TV anatomy throughout the procedure.
Stability of plane shear flows in a layer with rigid and stress-free boundary conditions
Authors: Falsaperla Paolo , Mulone Giuseppe , Perrone Carla 
Published: May 2022

AbstractWe study the stability of shear flows of an incompressible fluid contained in a horizontal layer. We consider rigid–rigid, rigid—stress-free and stress-free—stress-free boundary conditions. We study (and recall some known results) linear stability/instability of the basic Couette, Poiseuille and a laminar parabolic flow with the spectral analysis by using the Chebyshev collocation method. We then use an $$L_2$$

L
2

-energy with Lyapunov second method to obtain nonlinear critical Reynolds numbers, by solving a maximum problem arising from the Reynolds energy equation. We obtain this maximum (which gives the minimum Reynolds number) for streamwise perturbations $$\mathrm{Re}_c={\text {Re}}^y$$

Re
c

=

Re

y

. However, this contradicts a theorem which proves that streamwise perturbations are always stabilizing, $${\text {Re}}^y=+\infty $$

Re

y

=
+
∞

. We solve this contradiction with a conjecture and prove that the critical nonlinear Reynolds numbers are obtained for two-dimensional perturbations, the spanwise perturbations, $$\mathrm{Re}_c={\text {Re}}^x$$

Re
c

=

Re

x

, as Orr had supposed in the classic case of Couette flow between rigid planes.
Discussing students’ thinking and perspectives for improving teaching: An analysis of teachers’ reflection in post-lesson discussions in lesson study cycles
Authors: Shimizu Yoshinori , Kang Hyomin 
Published: May 2022

AbstractLesson study is a Japanese concept to improve teaching and learning mathematics through a particular form of activity in which a group of teachers works collaboratively to plan, implement, observe, and reflect on the proposed research lessons. Although lesson study is internationally acknowledged as providing key learning opportunities for teachers, there is limited information on post-lesson discussion and its contribution toward teachers’ professional growth. This study has the aim of describing the key features of post-lesson discussions. An entire group of teachers at a public elementary school in Japan participated in three lesson study cycles. During the post-lesson discussion in each cycle, the teachers were invited to write down what they believed was significant in the planned lesson and their comments regarding the lessons, for the discussion. The writings and comments were collected and analyzed. This method helped capture teachers’ ‘voices’ better compared to recordings of oral discussion. The results of the analyses of teachers’ writings and comments revealed that a major part of post-lesson discussions involved issues related to pedagogies, and teachers’ reflections tended to focus more on students’ thinking and mathematical topics over time as the cycles of lesson study proceeded. The results suggested that teachers’ professional growth can be related to their recognition of the importance of understanding students’ thinking and their perspectives on mathematics, in order to improve teaching.