bluuebunny/crossref_metadata_2025_split huggingface dataset:
Understanding User Feedback in Software Ecosystems: A Study on Challenges and Mitigation Strategies
Authors: Ghimire Bachan , Li Ze Shi , Damian Daniela 
Published: February 2024

AbstractOnline user feedback has become an essential mechanism for software organizations to gain insight into user concerns and to recognize areas for improvement. In software platform ecosystems, staying abreast of user feedback is particularly challenging due to the multitude of feedback channels and the complex interplay with third party applications. In this paper we report from a mixed-method study of user feedback from over 40,000 relevant reviews from 139 SECO platforms out of 2.4 million online user reviews scraped from 283 retrieved SECO platforms. Through thematic analysis and machine learning classifiers with high accuracy, we identified and analyzed six categories of user challenges in the areas of Integration, Customer Support, Design & Complexity, Privacy & Security, Cost & Pricing, and Performance & Compatibility. Our analysis also shows a significant growth of SECO user feedback in the past five years, highlighting the importance of understanding such user feedback as well as research methodologies to automatically study online user concerns in software ecosystems. To further understand mitigation strategies for challenges reported by end users, we interviewed four executives from large ecosystems and describe strategies in addressing those identified challenges. This research is a first large scale study of user feedback in software ecosystems; the categories of user concerns are hopefully useful in guiding platforms in designing and fostering better software ecosystems. Our methodology for automatically classifying the user feedback that is SECO-related can also serve as guidance for future studies that can further advance our understanding of user feedback and how to integrate it into improved software ecosystems.
Corporate Startups: A Systematic Literature Review on Governance and Autonomy
Authors: Garidis Konstantin , Rossmann Alexander , Murray Alan 
Published: February 2024

AbstractMany incumbents observe the startup world in jealousy of their agility and innovational performance. An increasing number of initiatives aim to mimic startup-like procedures in order to increase the incumbents’ innovational output. Structural models like accelerators, spinoffs, incubators, or corporate venture capitals aim to achieve that goal by implementing different governance setups. However, the success of such initiatives often remains unclear. While there is broad research on such topics, a clear empirical view on governance mechanisms for entrepreneurial structures in incumbents is missing. This paper outlines how to build a governance model based on empirically validated mechanisms and their relationship to corporate startup autonomy. This is achieved by following the systematic literature review approach by Webster and Watson combined with qualitative data analysis techniques. The results describe relevant gaps in current research and identify promising pathways for future research.
Exploring the Finnish Impact Investing Ecosystem: Perspectives on Challenges from Technology Startups
Authors: Okker Timo , Mohanani Rahul , Auvinen Tommi , Abrahamsson Pekka 
Published: February 2024

AbstractThe increasing significance of social and environmental impact within the technology startup business sector has garnered attention. Previous research has explored impact investing and related themes in the startup context. However, despite the growing interest in this area, a noticeable gap exists in research addressing impact investing ecosystems (IIE) and ecosystem-related challenges and advantages specifically within the technology field. This study endeavors to fill this gap by examining organizations within the Finnish IIE, bridging the divide between current industry practices and academic research. This study employed an interview-based approach, featuring thirteen interviewees representing eleven participating organizations. These interviews followed a semi-structured format, with all interviewees holding roles closely linked to the technology startup context within the Finnish IIE. Utilizing the thematic synthesis approach, this research aims to elucidate the perceived challenges faced by technology startups operating within the IIE. The findings of this study underscore the diversity and multiplicity of challenges confronting startups within the IIE, spanning various functions and operations, as well as the existing financial structures. Furthermore, this study puts forth recommendations for mitigating these perceived challenges and suggests potential avenues for future research within this domain.
Feeling the Elephant: Insiders’ Perspectives on the Metaverse
Authors: de Oliveira Fabrício , Wang Xiaofeng , Zaina Luciana 
Published: February 2024

AbstractThe metaverse has been considered in various literature reviews as a multifaceted and complex concept that can not be defined from a single set of terms. These literature reviews have attempted the Metaverse definition based on the research most published before the heated attention on the Metaverse in 2021; therefore, they may not provide an up-to-date understanding of the phenomenon that incorporates the perspectives from the industry. This paper aims to disentangle the complexity of the Metaverse concept considering the perspectives of insiders - practitioners who play essential roles in the recent Metaverse wave. To achieve our goal, we analyzed one specific type of gray literature - a podcast series from Bloomberg entitled “Into the Metaverse” which featured different professionals active in the Metaverse landscape. Three themes were identified that represent the essential characteristics of the Metaverse which include technology capabilities, infrastructure characteristics, and social and economic aspects. Our study contributes to a more contemporary industrial understanding of the Metaverse concept. The understanding can assist researchers in future investigations into the evolving Metaverse paradigm.
BPS fivebrane stars. Part II. Fluctuations
Authors: Martinec Emil J. , Zigdon Yoav 
Published: February 2024

Abstract
We investigate quantum fluctuations of metric components in coherent 1/2-BPS bound states of n1 fundamental strings and n5 NS5-branes. The leading order contribution in an expansion in 1/(n1n5) is calculated via a combination of analytical and numerical methods. We find that the fluctuations are small away from a tiny distance from the source, comparable to the 6d Planck scale. Comparing this result with an analysis in the literature of fluctuations in the maximally mixed state, we conclude that the large fluctuations previously found for the latter are statistical rather than quantum in nature, and that perturbative string theory provides an accurate description of these backgrounds.
Chiral Soliton Lattice turns into 3D crystal
Authors: Evans Geraint W. , Schmitt Andreas 
Published: February 2024

Abstract
Chiral perturbation theory predicts the chiral anomaly to induce a so-called Chiral Soliton Lattice at sufficiently large magnetic fields and baryon chemical potentials. This state breaks translational invariance in the direction of the magnetic field and was shown to be unstable with respect to charged pion condensation. Improving on previous work by considering a realistic pion mass, we employ methods from type-II superconductivity and construct a three-dimensional pion (and baryon) crystal perturbatively, close to the instability curve of the Chiral Soliton Lattice. We find an analogue of the usual type-I/type-II transition in superconductivity: along the instability curve for magnetic fields eB > 0.12 GeV2 and chemical potentials μ < 910 MeV, this crystal can continuously supersede the Chiral Soliton Lattice. For smaller magnetic fields the instability curve must be preceded by a discontinuous transition.
On reconstructing finite gauge group from fusion rules
Authors: Radhakrishnan Rajath 
Published: February 2024

Abstract
Gauging a finite group 0-form symmetry G of a quantum field theory (QFT) results in a QFT with a Rep(G) symmetry implemented by Wilson lines. The group G determines the fusion of Wilson lines. However, in general, the fusion rules of Wilson lines do not determine G. In this paper, we study the properties of G that can be determined from the fusion rules of Wilson lines and surface operators obtained from higher-gauging Wilson lines. This is in the spirit of Richard Brauer who asked what information in addition to the character table of a finite group needs to be known to determine the group. We show that fusion rules of surface operators obtained from higher-gauging Wilson lines can be used to distinguish infinite pairs of groups which cannot be distinguished using the fusion of Wilson lines. We derive necessary conditions for two non-isomorphic groups to have the same surface operator fusion and find a pair of such groups.
Vector-like symmetries and parity conservation in gauge theories with Yukawa couplings
Authors: Valenti Alessandro , Vecchi Luca 
Published: February 2024

Abstract
Non-perturbative results in QCD-like theories can be derived employing positivity of the Euclidean path integral measure, as pioneered by Weingarten, Vafa, and Witten. We show that positivity of the measure can be generalized to parity-invariant theories with Yukawa couplings to fundamental scalars, provided the fermions are Dirac and carry a real representation of the gauge group. This result allows us to demonstrate the conservation of parity and vector-like flavor symmetries in such theories, as well as to derive exact inequalities among hadrons’ masses.
Cardiac proteostasis in obesity and cardiovascular disease
Authors: Guerra Joel , Matta Leonardo , Bartelt Alexander 
Published: February 2024

AbstractCardiovascular diseases (CVD) are closely linked to protein homeostasis (proteostasis) and its failure. Beside genetic mutations that impair cardiac protein quality control, obesity is a strong risk factor for heart disease. In obesity, adipose tissue becomes dysfunctional and impacts heart function and CVD progression by releasing cytokines that contribute to systemic insulin resistance and cardiovascular dysfunction. In addition, chronic inflammation and lipotoxicity compromise endoplasmic reticulum (ER) function, eliciting stress responses that overwhelm protein quality control beyond its capacity. Impairment of proteostasis—including dysfunction of the ubiquitin–proteasome system (UPS), autophagy, and the depletion of chaperones—is intricately linked to cardiomyocyte dysfunction. Interventions targeting UPS and autophagy pathways are new potential strategies for re-establishing protein homeostasis and improving heart function. Additionally, lifestyle modifications such as dietary interventions and exercise have been shown to promote cardiac proteostasis and overall metabolic health. The pursuit of future research dedicated to proteostasis and protein quality control represents a pioneering approach for enhancing cardiac health and addressing the complexities of obesity-related cardiac dysfunction.
Powder bed fusion of high-Mn-N Ni-free austenitic stainless steel: achieving low porosity and high mechanical strength through process parameter selection
Authors: Tochiro Leandro Akira , Gabriel André Henrique Guimarães , Terada Maysa , de Castro Renato Spacini , Lopes Éder Sócrates Najar , Avila Julian Arnaldo , Masoumi Mohammad 
Published: February 2024

AbstractThe emergence of innovative high-performance stainless steels is essential at the forefront of material science. This research highlights the meticulous development of a novel high-Mn-N Ni-free austenitic stainless steel via the powder bed fusion laser–based (PBF-LB) technique. We strategically optimized the laser parameters, achieving ultralow porosity and a refined microstructure with defects under 2%. Comprehensive analysis revealed superior dendritic cellular formations at melt pool boundaries, underlining our method’s precision. Unveiling the strength of this novel steel, sample S11 (scanning speed of 800 mm/s and laser power of 147 W) showed a remarkable tensile strength of 1190 ± 20 MPa and an impressive elongation to fracture of 35 ± 3%. Interestingly, twin formations became evident under external loads, enhancing mechanical resistance while preserving ductility. Advanced quantification methods were employed to ensure accuracy, especially for low atomic number elements, overcoming previous measurement constraints. This pioneering study introduces a game-changing austenitic Ni-free stainless steel enriched by Mn and N. It sets a new benchmark in material development and application, synergizing exceptional mechanical attributes with robust ductility.
Martingale Solutions in Stochastic Fluid–Structure Interaction
Authors: Breit Dominic , Mensah Prince Romeo , Moyo Thamsanqa Castern 
Published: February 2024

AbstractWe consider a viscous incompressible fluid interacting with a linearly elastic shell of Koiter type which is located at some part of the boundary. Recently models with stochastic perturbation in the shell equation have been proposed in the literature but only analysed in simplified cases. We investigate the full model with transport noise, where (a part of) the boundary of the fluid domain is randomly moving in time. We prove the existence of a weak martingale solution to the underlying system.
Characterization of Sonic Hedgehog transcripts in the adult mouse brain: co-expression with neuronal and oligodendroglial markers
Authors: Russo Mariagiovanna , Pellegrino Giuliana , Faure Hélène , Tirou Linda , Sharif Ariane , Ruat Martial 
Published: February 2024

AbstractIn the adult mammalian brain, astrocytes are proposed to be the major Sonic Hedgehog (Shh)-responsive cells. However, the sources of the Shh molecule mediating activation of the pathway are still poorly characterized. The present work investigates the distribution and phenotype of cells expressing Shh mRNA in the adult mouse brain. Using single-molecule fluorescent in situ hybridization (smfISH), we report much broader expression of Shh transcripts in almost all brain regions than originally reported. We identify Shh mRNA in HuC/D+ neuronal populations, including GABAergic (glutamic acid decarboxylase 67, Gad67), cholinergic (choline acetyltransferase, ChAT), dopaminergic (tyrosine hydroxylase, TH), nitrergic (neuronal nitric oxide synthase, nNOS), and in a small population of oligodendroglial cells expressing Sox10 and Olig2 mRNA transcription factors. Further analysis of Shh mRNA in cerebral cortical and hypothalamic neurons suggests that Shh is also expressed by glutamatergic neurons. Interestingly, we did not observe substantial Desert Hedgehog and Indian Hedgehog mRNA signals, nor Shh signals in S100β+ astrocytes and Iba1+ microglial cells. Collectively, the present work provides the most robust central map of Shh-expressing cells to date and underscores the importance of nitrergic neurons in regulating Shh availability to brain cells. Thus, our study provides a framework for future experiments aimed at better understanding of the functions of Shh signaling in the brain in normal and pathological states, and the characterization of novel regulatory mechanisms of the signaling pathway.
Pharyngeal Residue Scoring in Fiberoptic Endoscopic Evaluation of Swallowing: Reliability Comparison and Applicability Among Different Scales
Authors: Messina Federica , Rocca Sara , Manca Beatrice , Scarponi Letizia , Ninfa Aurora , Schindler Antonio , Pizzorni Nicole 
Published: February 2024

AbstractSeveral scales to assess pharyngeal residue in Fiberoptic Endoscopic Evaluation of Swallowing (FEES) are currently available. The study aimed to compare the reliability and the applicability in real clinical practice among four rating scales: the Pooling Score (P-SCORE), the Boston Residue and Clearance Scale (BRACS), the Yale Pharyngeal Residue Severity Rating Scale (YPRSRS), and the Residue Ordinal Rating Scale (RORS). Twenty-five FEES videos were evaluated four times, once for each scale, by four speech and language pathologists. To test intra-rater reliability, the same raters re-assessed the videos two weeks apart. To test the applicability, raters recorded the time required to complete each assessment and the perceived difficulty/ease on a visual-analog scale (VAS). The intra-rater and the inter-rater reliability were calculated with Cohen’s weighted Kappa and the Fleiss weighted Kappa, respectively. Time and perceived difficulty/ease scores were compared. The intra-rater reliability analysis showed almost perfect agreement for YPRSRS (k = 0.91) and RORS (k = 0.83) and substantial agreement for P-SCORE (k = 0.76) and BRACS (k = 0.74). Pairwise comparison showed no significant differences among the scales. The inter-rater reliability for the YPRSRS (k = 0.78) was significantly higher than P-SCORE (k = 0.52, p < 0.001), BRACS (k = 0.56, p < 0.001), and RORS (k = 0.65, p = 0.005). The BRACS required the longest time (p < 0.001) and was perceived as the most difficult scale (p < 0.001). The RORS was perceived as the easiest scale (p < 0.05). In conclusion, the YPRSRS showed the highest reliability, while raters perceived the RORS as the easiest to score. These results will allow clinicians to consciously choose which scale to use in clinical practice.
Addressing manufacturing defects in architected materials via anisotropy: minimal viable case
Authors: Joedicke Indre , Ghavidelnia Naeim , Felsch Gerrit , Slesarenko Viacheslav 
Published: February 2024

AbstractThe emergence of additive manufacturing has enabled the fabrication of architected materials with intricate micro- and nanoscale features. However, each fabrication method has a specific minimum feature size that can be practically achieved. As engineers pursue lightweight and high-performance materials, the elements of these architected materials often approach this minimum feature size, which poses a risk to their structural integrity. The failure of individual struts can result in the complete breaking of the lattice metamaterial’s connectivity or, depending on the internal architecture, only a marginal reduction in its load-bearing capacity. In this short letter, we use a minimal viable unit cell to demonstrate how an anisotropic lattice, constructed with beams of varying thicknesses, can surpass a lattice consisting solely of uniform thickness beams in terms of damage tolerance. Our focus is primarily on the manufacturing limitations rather than defects that may arise during the loading of architected materials. We propose an approach where the probability of each individual strut failure depends on its thickness, and we illustrate the implications using a simple step-like function. This approach can be extended to more complex metamaterials or to explore intricate relationships between failure probability and beam thickness.
Randomized controlled trial of individualized arousal-biofeedback for children and adolescents with disruptive behavior disorders (DBD)
Authors: Aggensteiner Pascal-M. , Böttinger Boris , Baumeister Sarah , Hohmann Sarah , Heintz Stefan , Kaiser Anna , Häge Alexander , Werhahn Julia , Hofstetter Christoph , Walitza Susanne , Franke Barbara , Buitelaar Jan , Banaschewski Tobias , Brandeis Daniel , Holz Nathalie E. 
Published: February 2024

AbstractDisruptive behavior disorders [including conduct disorder (CD) and oppositional defiant disorder (ODD)] are common childhood and adolescent psychiatric conditions often linked to altered arousal. The recommended first-line treatment is multi-modal therapy and includes psychosocial and behavioral interventions. Their modest effect sizes along with clinically and biologically heterogeneous phenotypes emphasize the need for innovative personalized treatment targeting impaired functions such as arousal dysregulation. A total of 37 children aged 8–14 years diagnosed with ODD/CD were randomized to 20 sessions of individualized arousal biofeedback using skin conductance levels (SCL-BF) or active treatment as usual (TAU) including psychoeducation and cognitive–behavioral elements. The primary outcome was the change in parents´ ratings of aggressive behavior measured by the Modified Overt Aggression Scale. Secondary outcome measures were subscales from the Child Behavior Checklist, the Inventory of Callous-Unemotional traits, and the Reactive-Proactive Aggression Questionnaire. The SCL-BF treatment was neither superior nor inferior to the active TAU. Both groups showed reduced aggression after treatment with small effects for the primary outcome and large effects for some secondary outcomes. Importantly, successful learning of SCL self-regulation was related to reduced aggression at post-assessment. Individualized SCL-BF was not inferior to active TAU for any treatment outcome with improvements in aggression. Further, participants were on average able to self-regulate their SCL, and those who best learned self-regulation showed the highest clinical improvement, pointing to specificity of SCL-BF regulation for improving aggression. Further studies with larger samples and improved methods, for example by developing BF for mobile use in ecologically more valid settings are warranted.
Benefits of farmer managed natural regeneration to food security in semi-arid Ghana
Authors: Opoku Mensah Seth , Ibrahim Suglo-Konbo , Jacobs Brent , Cunningham Rebecca , Owusu-Ansah Derrick , Adjei Evans 
Published: February 2024

AbstractPromoting Farmer Managed Natural Regeneration (FMNR) aims to increase the productive capacities of farmer households. Under FMNR, farmers select and manage natural regeneration on farmlands and keep them under production. While FMNR contributes to the wealth of farming communities, its contribution to household food security has rarely been researched. We, therefore, used a mixed-methods approach to address the research gap by measuring FMNR’s contribution to food security among farmer households in the Talensi district of Ghana. We adopted the Household Dietary Diversity Score (HDDS) and Food Consumption Score (FCS) to estimate food security status among 243 FMNR farmer households and 243 non-FMNR farmer households. Also, we performed a Chi-square test of independence to compare the frequency of each food group (present vs not present) between FMNR adopters and non-FMNR adopters to establish the relationship between adopting FMNR and consuming the FCS and HDDS food groups. Our results reveal that FMNR farmer households are more food secure than non-FMNR farmer households. The HHDS of the FMNR farmer households was 9.6, which is higher than the target value of 9.1. Conversely, the HHDS of the non-FMNR farmer households was 4.3, which is lower than the target value of 9.1. Up to 86% and 37% of the FMNR farmer households and non-FMNR farmer households fell within acceptable FCS; 15% and 17% of FMNR farmer households and non-FMNR farmer households fell within borderline FCS. While none of the FMNR farmer households fell within poor FCS, 46% of non-FMNR farmer households fell within poor FCS. Adopting FMNR is significantly related to consuming all food groups promoted and benefiting from FMNR practices. The paper recommends enabling farmers in semi-arid environments to practice and invest in FMNR for long-term returns to food security.