bluuebunny/crossref_metadata_2025_split huggingface dataset:
The loom for general fishnet CFTs
Authors: Kazakov Vladimir , Olivucci Enrico 
Published: June 2023

Abstract
We propose a broad class of d-dimensional conformal field theories of SU(N) adjoint scalar fields generalising the 4d Fishnet CFT (FCFT) discovered by Ö. Gürdogan and one of the authors as a special limit of γ-deformed $$ \mathcal{N} $$
N
= 4 SYM theory. In the planar N → ∞ limit the FCFTs are dominated by the “fishnet” planar Feynman graphs. These graphs are explicitly integrable, as was shown long ago by A. Zamolodchikov. The Zamolodchikov’s construction, based on the dual Baxter lattice (straight lines on the plane intersecting at arbitrary slopes) and the star-triangle identities, can serve as a “loom” for “weaving” the Feynman graphs of these FCFTs, with certain types of propagators, at any d. The Baxter lattice with M different slopes and any number of lines parallel to those, generates an FCFT consisting of M (M – 1) fields and a certain number of chiral vertices of different valences with distinguished couplings. These non-unitary, logarithmic CFTs enjoy certain reality properties for their spectrum due to a symmetry similar to the PT-invariance of non-hermitian hamiltonians proposed by C. Bender and S. Boettcher. We discuss in more detail the theories generated by a loom with M = 2, 3, 4, and the generalisation of the loom FCFTs for spinning fields in 4d.
Update Telenotfallmedizin
Authors: Schröder Hanna , Beckers Stefan K. , Borgs Christina , Rossaint Rolf , Felzen Marc 
Published: June 2023

Zusammenfassung
Aktueller Stand der Notfallmedizin in Deutschland
In den letzten Jahren kommt es bei steigendem Einsatzaufkommen zu zunehmendem Mangel von nichtärztlichem, aber auch ärztlichem Personal im Rettungsdienst, sodass eine optimierte Nutzung der vorhandenen Ressourcen erforderlich ist. Eine Möglichkeit stellt die Einführung des Telenotarztes (TNA) dar, welcher in Aachen bereits seit 2014 in den Regelrettungsdienst eingebunden ist.

Einführung von Telenotfallmedizin
Neben Pilotprojekten führen Beschlüsse der politischen Entscheidungsträger zur Einführung von Telenotfallmedizin. Der Ausbau schreitet aktuell in unterschiedlichen Bundesländern voran; für Nordrhein-Westfalen und Bayern ist eine flächendeckende Einführung beschlossen. Essenziell für die indikationsgerechte Einbindung von Telenotfallmedizin ist die Anpassung des Notarztindikationskatalogs.

Status quo von Telenotfallmedizin
Der Telenotarzt bietet das Potenzial, (not‑)ärztliche Expertise langfristig und flächendeckend standortunabhängig im Rettungsdienst zu verankern und damit ärztlichen Ressourcenmangel teilweise zu kompensieren. Weiterhin kann er die Leitstelle beratend unterstützen sowie beispielsweise Sekundärtransporte abklären. Ein einheitliches Qualifikationscurriculum für Telenotärzte wurde von den Ärztekammern Nordrhein und Westfalen-Lippe eingeführt.

Ausblick
Neben der Konsultation aus Primär- und Sekundäreinsätzen kann Telenotfallmedizin in weiteren Bereichen eingesetzt werden, beispielsweise zur Supervision von ärztlichem Personal oder Teilen der Rezertifizierung von Rettungsdienstpersonal. Eine Kompensation eines Mangels an Rettungswagen könnte durch den Gemeindenotfallsanitäter erfolgen, welcher ebenfalls an den Telenotarzt angeschlossen werden kann.
Spectral Analysis of the Quantum Random Energy Model
Authors: Manai Chokri , Warzel Simone 
Published: June 2023

AbstractThe quantum random energy model (QREM) is a random matrix of Anderson-type which describes effects of a transversal magnetic field on Derrida’s spin glass. The model exhibits a glass phase as well as a classical and a quantum paramagnetic phase. We analyze in detail the low-energy spectrum and establish a localization-delocalization transition for the corresponding eigenvectors of the QREM. Based on a combination of random matrix and operator techniques as well as insights in the random geometry, we derive next-to-leading order asymptotics for the ground-state energy and eigenvectors in all regimes of the parameter space. Based on this, we also deduce the next-to-leading order of the free energy, which turns out to be deterministic and on order one in the system size in all phases of the QREM. As a result, we determine the nature of the fluctuations of the free energy in the spin glass regime.
Tool-use training in augmented reality: plasticity of forearm body schema does not predict sense of ownership or agency in older adults
Authors: Jahanian Najafabadi Amir , Küster Dennis , Putze Felix , Godde Ben 
Published: June 2023

AbstractIn young adults (YA) who practised controlling a virtual tool in augmented reality (AR), the emergence of a sense of body ownership over the tool was associated with the integration of the virtual tool into the body schema (BS). Agency emerged independent of BS plasticity. Here we aimed to replicate these findings in older adults (OA). Although they are still able to learn new motor tasks, brain plasticity and learning capacity are reduced in OA. We predicted that OA would be able to gain control over the virtual tool indicated by the emergence of agency but would show less BS plasticity as compared to YA. Still, an association between BS plasticity and body ownership was expected. OA were trained in AR to control a virtual gripper to enclose and touch a virtual object. In the visuo-tactile (VT) but not the vision-only (V) condition, vibro-tactile feedback was applied through a CyberTouch II glove when the tool touched the object. BS plasticity was assessed with a tactile distance judgement task where participants judged distances between two tactile stimuli applied to their right forearm. Participants further rated their perceived ownership and agency after training. As expected, agency emerged during the use of the tool. However, results did not indicate any changes in the BS of the forearm after virtual tool-use training. Also, an association between BS plasticity and the emergence of body ownership could not be confirmed for OA. Similar to YA, the practice effect was stronger in the visuo-tactile feedback condition compared with the vision-only condition. We conclude that a sense of agency may strongly relate to improvement in tool-use in OA independent of alterations in the BS, while ownership did not emerge due to a lack of BS plasticity.
A lower bound for the dimension of tetrahedral splines in large degree
Authors: DiPasquale Michael , Villamizar Nelly 
Published: June 2023

AbstractSplines are piecewise polynomial functions which are continuously differentiable to some order r. For a fixed integer d the space of splines of degree at most d is a finite dimensional vector space, and a largely open problem in numerical analysis is to determine its dimension. While considerable attention has been given to this problem in the bivariate setting, the literature on trivariate splines is less conclusive. In particular, the dimension of generic trivariate splines is not known even in large degree when $$r>1$$

r
>
1

. In this paper we use a bound we previously derived for splines on vertex stars to compute a new lower bound on the dimension of trivariate splines in large enough degree. We illustrate in several examples that our formula gives the exact dimension of the spline space in large enough degree if vertex positions are generic. In contrast, for splines continuously differentiable of order $$r>1$$

r
>
1

, every lower bound in the literature diverges (often significantly) in large degree from the dimension of the spline space in these examples. We derive the bound using commutative and homological algebra.
Epistemic discourses concerning the competence developed in a norwegian master’s degree program in health science
Authors: Kristoffersen Margareth , Oftedal Bjørg Frøysland 
Published: June 2023

AbstractIt has been claimed that various discourses related to competence influence higher education, but there is limited understanding of the discourses underlying competence development. The specific aim of this study was to explore epistemic discourses concerning the development of competence of health professionals with a master’s degree in health science. Accordingly, the study was qualitative and adopted discourse analysis. Twelve participants, all of whom were Norwegian health professionals aged between 29 and 49 years, participated in this study. Four participants were in the final stage of study for their master’s degree with three months left before completion, four had completed their degree two weeks before their participation, and four had been working for one year after the completion of their degree. Data were collected in three group interviews. Three epistemic discourses were revealed: (1) a critical thinking competencies discourse, (2) a scientific thinking competencies discourse, and (3) a competence-in-use discourse. The former two discourses were considered the dominant discourses and indicated that a knowing “that” discourse connected the specialized competence of different health professionals with a wider field of competence. This wider field transcended the boundaries of various health disciplines and represented a novel competence developed through a synergizing process between critical and scientific thinking competencies, which seems to drive continued competence development. A competence-in-use discourse was formed in the process. This discourse can be viewed as a unique outcome that contributes to health professionals’ specialized competence and suggests that a knowing “how” discourse was also an underlying background discourse.
An analytic derivation of the efficient frontier in biobjective cash management and its implications for policies
Authors: Salas-Molina Francisco , Pla-Santamaria David , Rodriguez-Aguilar Juan A. 
Published: June 2023

AbstractCash managers who optimize returns and risk rely on biobjective optimization models to select the best policies according to their risk preferences. In the related portfolio selection problem, Merton (J Financ Quant Anal 7(4):1851–1872, 1972) provided the first analytical derivation of the efficient frontier with all non-dominated return and risk combinations. This first proposal was later extended to account for three or more criteria by other authors. However, the cash management literature needs an analytical derivation of the efficient frontier to help cash managers evaluate the implications of selecting policies and risk measures. In this paper, we provide three analytic derivations of the efficient frontier determining a closed-form solution for the expected returns and risk relationship using three different risk measures. We study its main properties and its theoretical implications for policies. Using the variance of returns as a risk measure imposes limitations due to invertibility reasons.
Corporate Responses to Intimate Partner Violence
Authors: Branicki Layla , Kalfa Senia , Pullen Alison , Brammer Stephen 
Published: June 2023

AbstractIntimate partner violence (IPV) is among society’s most pernicious and impactful social issues, causing substantial harm to health and wellbeing, and impacting women’s employability, work performance, and career opportunity. Organizations play a vital role in addressing IPV, yet, in contrast to other employee- and gender-related social issues, very little is known regarding corporate responses to IPV. IPV responsiveness is a specific demonstration of corporate social responsibility and is central to advancing gender equity in organizations. In this paper, we draw upon unique data on the IPV policies and practices of 191 Australian listed corporations between 2016 and 2019, that collectively employ around 1.5 M employees. Providing the first large-scale empirical analysis of corporate IPV policies and practices, we theorise that listed corporations’ IPV responsiveness reflects institutional and stakeholder pressures which are multifaceted and central to corporate social responsibility. Our findings identify greater IPV responsiveness among larger corporations, as well as those corporations with higher proportions of women middle managers, greater financial resources, and more advanced employee consultation on gender issues. This paper concludes that there is a need for further research on corporate IPV responsiveness, to further illuminate corporate motivations, organizational support processes, and employee experiences.
The sustainable development goals: governing by goals, targets and indicators
Authors: Long Graham , Censoro Jecel , Rietig Katharina 
Published: June 2023

AbstractHow do the goals, targets and indicators of the Sustainable Development Goals (SDGs) serve as governance instruments in efforts to achieve the SDGs by 2030? This perspective addresses this question in three sections. First, it develops an account of how we should understand governance for the SDGs that highlights the role of targets and indicators, but also institutions and norms, in this model of ‘soft’ governance. Second, it then offers a brief assessment of how the SDGs have worked as governance innovation since 2015, highlighting changes in the infrastructure of the SDGs and some national contexts, but also limitations. This section also considers the place of national ownership as a principle, integral to the SDGs, which constrains the transformative potential of the goals and targets. A final section considers how elements and mechanisms of SDG governance might be developed further. It points toward the importance of scaling up pockets of innovation and goal achievement across jurisdictions and levels of governance, while raising questions about expectations for SDG achievement beyond 2030.
Grain boundary configurational entropy: a challenge
Authors: Lejček Pavel , Školáková Andrea 
Published: June 2023

AbstractWhile the bulk of the high-entropy alloys is widely studied and characterized by their configurational entropy, there is a lack of general information regarding the configurational entropy of the grain boundaries. Here, we derived for the first time the basic relationships of this thermodynamic quantity related to the solute segregation at grain boundaries. Some examples of the appearance of the grain boundary configurational entropy are shown, and its effect on intergranular properties is discussed. It is stated that the role of grain boundary configurational entropy in interfacial properties is not completely clear and represents a challenge for future research.
Positive and Negative Leadership in Late Childhood: Similarities in Individual but Differences in Interpersonal Characteristics
Authors: Dong Zhe , Huitsing Gijs , Veenstra René 
Published: June 2023

AbstractPrevious research has shown that leadership is associated not only with positive but also with negative characteristics and behaviors; knowledge of the similarities and differences between positive and negative leaders remains insufficient. This study aimed to examine (1) the existence of different subtypes of leaders and (2) to what extent these leaders differed on individual and interpersonal characteristics. The sample contained 9213 students in grades 3–6 (Dutch grades 5–8), from 392 classrooms in 98 schools (50.3% girls, Mage = 10.13 ± 1.23 years). Latent profile analysis identified three leader profiles and four non-leader profiles based on peer nominations received for leadership, popularity, and positive (defending) and negative (bullying) behavior: (1) positive leaders, (2) negative leaders, (3) non-popular leaders, (4) popular children, (5) bullies, (6) extreme bullies, and (7) modal children. Multinomial logistic regression showed similarities and differences between positive and negative leaders, as well as between each of these and the other five profiles. Positive leaders were more accepted and less rejected and had more friendships than negative leaders, but the differences in individual characteristics (self-esteem, self-control, and social goals) were less clear. This study demonstrated that 10–15% of the children were perceived as leaders, and that positive leadership became more prevalent in the higher grades. Nevertheless, negative leadership occurred also in the higher grades. Interventions aimed at turning negative leaders into positive leaders may work, because positive and negative leaders do not differ greatly in individual characteristics. Such interventions may improve the relationships of negative leaders with their classmates, which may be good for their likeability (but not at the expense of their popularity) as well as for the social atmosphere in the class as a whole.
A moment-matching metric for latent variable generative models
Authors: Beaulac Cédric 
Published: June 2023

AbstractIt is difficult to assess the quality of a fitted model in unsupervised learning problems. Latent variable models, such as variational autoencoders and Gaussian mixture models, are often trained with likelihood-based approaches. In the scope of Goodhart’s law, when a metric becomes a target it ceases to be a good metric and therefore we should not use likelihood to assess the quality of the fit of these models. The solution we propose is a new metric for model comparison or regularization that relies on moments. The key idea is to study the difference between the data moments and the model moments using a matrix norm, such as the Frobenius norm. We first show how to use this new metric for model comparison and then for regularization. We show that our proposed metric is faster to compute and has a smaller variance than the commonly used procedure of drawing samples from the fitted distribution. We conclude this article with a demonstration of both applications and we discuss our findings and future work.
On the psychology of the relation between optimism and risk taking
Authors: Dohmen Thomas , Quercia Simone , Willrodt Jana 
Published: June 2023

AbstractIn this paper, we provide an explanation for why risk taking is related to optimism. Using a laboratory experiment, we show that the degree of optimism predicts whether people tend to focus on the positive or negative outcomes of risky decisions. While optimists tend to focus on the good outcomes, pessimists focus on the bad outcomes of risk. The tendency to focus on good or bad outcomes of risk in turn affects both the self-reported willingness to take risk and actual risk taking behavior. This suggests that dispositional optimism may affect risk taking mainly by shifting attention to specific outcomes rather than causing misperception of probabilities. In a second study we find evidence that dispositional optimism is related to elicited parameters of rank dependent utility theory suggesting that focusing may be among the psychological determinants of decision weights. Finally, we corroborate our findings with process data related to focusing showing that optimists tend to remember more and attend more to good outcomes and this in turn affects their risk taking.
Institutionalizing Experimental Places for Inclusive Social Innovation: From Utopias to Heterotopias
Authors: Sancino Alessandro , Scognamiglio Fulvio , Corvo Luigi , Imperiale Francesca , Pasi Giulio 
Published: June 2023

AbstractThis essay embraces a notion of critical scholarship concerned with proposing normative and actionable alternatives that can create more inclusive societies and focuses on the role of institutionalizing experimental places for inclusive social innovation as a bottom-up strategic response to welfare state reforms. By mobilizing the notions of utopias and heterotopias in Foucault, the paper sheds light on the opportunity to move from policy utopias to democratic heterotopias, discussing the politics embedded in this cognitive shift and the democratic nature of social innovation changing social and governance relations by interacting with politico-administrative systems. Some obstacles to institutionalizing social innovation are highlighted, as well as some key governance mechanisms that can be activated either by public and/or social purpose organizations to try to overcome those obstacles. Finally, we discuss the importance of linking inclusive social innovation with democratic, rather than market logics.
New Insights in Strain Mechanics (LA, RA, and RV)
Authors: Wong Joshua , Marwick Thomas H. 
Published: June 2023

Abstract
Purpose of Review
The purpose of this paper is to review the current status and literature surrounding left atrial, right atrial, and right ventricular strain.

Recent Findings
Advancements in chamber-specific strain software and taskforce consensus statements have helped overcome the previous limitations of reproducibility and inter-vendor variability. Strain has increasing utility due to its superior diagnostic sensitivity and independent prognostic value over traditional imaging assessments in a range of clinical conditions.

Summary
The use of strain as a reliable and reproducible marker of cardiac function is most widely accepted in the assessment of left ventricular global longitudinal strain (GLS). However, strain can also be assessed in other cardiac chambers (left atrium (LA), right ventricle (RV), and right atrium (RA)). Consolidation and refinement of strain assessments in these other chambers have been achieved by chamber-specific software and uniform approaches to measurements. Strain accounts for the complex anatomy and physiology of these chambers and therefore holds sensitive diagnostic capacity. Current clinical applications are mainly in prognostication however utility is expanding specifically in LA strain, to identify and manage occult atrial fibrillation and in estimation of LV filling pressures. Further research is required to determine a universal approach in RV strain measurements and to improve technical capabilities in RA strain assessment.
Identification of Piezo1 as a potential target for therapy of colon cancer stem-like cells
Authors: Li Rong , Wang Dongmei , Li Huijuan , Lei Xianhua , Liao Weilian , Liu Xiao-Yu 
Published: June 2023

AbstractColon cancer is a common malignancy of the digestive tract. Colon cancer stem-like cells (CCSCs) are theoretically one of the key drivers of the initiation, relapse, metastasis, and chemo-resistance of colon tumors. Piezo1 is a mechanosensitive cationic channel protein involved in cancer progression. However, little is known regarding the possible role of Piezo1 in maintaining the stemness of CCSCs. In this study, we found that Piezo1 was highly expressed in CD133+/CD44+ colon cancer tissues, and the Piezo1high/CD133+CD44+ population was associated with the clinical stage. Furthermore, CCSCs isolated from colon cell lines expressed higher Piezo1 levels compared to the non-CCSCs, and Piezo1 knockdown inhibited their tumorigenicity and self-renewal capacity. Mechanistically, Piezo1 maintained the stemness of CCSCs through Ca2+/NFAT1 signaling, and knocking down Piezo1 promoted degradation of NFAT1. Taken together, Piezo1 is involved in the stage of colon cancer and is a promising therapeutic target.