bluuebunny/crossref_metadata_2025_split huggingface dataset:
Scaling scrum with a customized nexus framework: A report from a joint industry‐academia research project
Authors: Joskowski Andrzej , Przybyłek Adam , Marcinkowski Bartosz 
Published: March 2023

AbstractDespite a wide range of scaling frameworks available, large‐scale agile transformations are not straightforward undertakings. Few organizations have structures in place that fit the predefined workflows – while once one applies an off‐the‐shelf framework outside of its prescribed process, guidance quickly runs out. In this paper, we demonstrate how to instantiate a method configuration process using a lightweight experimental approach embedded in Action Research cycles. The proposed approach was developed to assist practitioners working on a multiple‐team project at Intel Technology Poland to find the right practices to continue their Nexus‐based transformation and integrate their in‐house method into the already established company structures, processes, and routines. In particular, it enabled identifying a series of challenges with scaled practices and coping with those. The challenges ranged from logistical problems, through poor availability of the Product Owner, to lackluster knowledge transfer and a wide array of communication/coordination issues at meetings. The study broadens the current body of knowledge within technology management and the scaled agile method‐tailoring domain. It indicates potential corrective actions that may be taken advantage of by entities that are not inclined, due to organizational constraints, to directly implement an off‐the‐shelf framework. Furthermore, our study demonstrates that a gradual transition to large‐scale agile at the project level (1) is possible with the preservation of traditional command‐and‐control management practices; (2) requires neither middle management involvement nor upfront investment; and (3) does not need to disrupt the continuous delivery of the product.
Investigation of the strut‐and‐tie model of a single‐plane cable‐stayed bridge tower under vertical component of the cable force
Authors: Li Shengyu , Hong Yu , Chen Liangjun , Pu Qianhui 
Published: March 2023

AbstractThe design of reinforcement of concrete pylons in cable‐stayed bridges is a challenging task. Usually, only the influence of the strong horizontal component of the cable force is considered during the reinforcement design of the concrete tower, while the bursting forces caused by the vertical components of the cable forces are ignored. However, the latter is also an important factor for concrete cracking in bridge towers. In this paper, the concrete tower of a single cable plane cable‐stayed bridge is considered. The strut‐and‐tie model (STM) of the pylon wall subject to the vertical components of one single cable force was derived. Based on the minimum strain energy principle, an equation for predicting the bursting force was given. Then, the STMs of a concrete pylon with two cable forces with different vertical distances between cables were proposed. A series of equations for predicting the bursting force in different STMs were presented. The STMs of a concrete pylon with multiple cables were subsequently obtained from the STM for two cable forces. The analysis results show that the vertical distance between cables has a great influence on the STM configuration of the tower. When the cable distance is less than 0.7 times the width of the tower wall, the bursting force is larger than that when the cable distance is larger than 0.7 times the width of the tower wall. This study was expected to provide a reference in the design and applications of pylons of concrete cable‐stayed bridges.
Meta‐QTL s and haplotypes for efficient zinc biofortification of rice
Authors: Joshi Gaurav , Soe Yan Paing , Palanog Alvin , Hore Tapas Kumer , Nha Chau Thanh , Calayugan Mark Ian , Inabangan‐Asilo Mary Ann , Amparado Amery , Pandey Indra Deo , Cruz Pompe C. Sta , Hernandez Jose E. , Swamy B. P. Mallikarjuna 
Published: March 2023

AbstractBiofortification of rice with improved grain zinc (Zn) content is the most sustainable and cost‐effective approach to address Zn malnutrition in Asia. Genomics‐assisted breeding using precise and consistent Zn quantitative trait loci (QTLs), genes, and haplotypes can fast‐track the development of Zn biofortified rice varieties. We conducted the meta‐analysis of 155 Zn QTLs reported from 26 different studies. Results revealed 57 meta‐QTLs with a significant reduction of 63.2% and 80% in the number and confidence interval of the Zn QTLs, respectively. Meta‐quantitative trait loci (MQTLs) regions were found to be enriched with diverse metal homeostasis genes; at least 11 MQTLs were colocated with 20 known major genes involved in the production of root exudates, metal uptake, transport, partitioning, and loading into grains in rice. These genes were differentially expressed in vegetative and reproductive tissues, and a complex web of interactions were observed among them. We identified superior haplotypes and their combinations for nine candidate genes (CGs), and the frequency and allelic effects of superior haplotypes varied in different subgroups. The precise MQTLs with high phenotypic variance, CGs, and superior haplotypes identified in our study are useful for an efficient Zn biofortification of rice and to ensure Zn as an essential component of all the future rice varieties through mainstreaming of Zn breeding.
Experimental approaches to study evolutionary cell biology using yeasts
Authors: Natalino Mariana , Fumasoni Marco 
Published: March 2023

AbstractThe past century has witnessed tremendous advances in understanding how cells function. Nevertheless, how cellular processes have evolved is still poorly understood. Many studies have highlighted surprising molecular diversity in how cells from diverse species execute the same processes, and advances in comparative genomics are likely to reveal much more molecular diversity than was believed possible until recently. Extant cells remain therefore the product of an evolutionary history that we vastly ignore. Evolutionary cell biology has emerged as a discipline aiming to address this knowledge gap by combining evolutionary, molecular, and cellular biology thinking. Recent studies have shown how even essential molecular processes, such as DNA replication, can undergo fast adaptive evolution under certain laboratory conditions. These developments open new lines of research where the evolution of cellular processes can be investigated experimentally. Yeasts naturally find themselves at the forefront of this research line. Not only do they allow the observation of fast evolutionary adaptation, but they also provide numerous genomic, synthetic, and cellular biology tools already developed by a large community. Here we propose that yeasts can serve as an “evolutionary cell lab” to test hypotheses, principles, and ideas in evolutionary cell biology. We discuss various experimental approaches available for this purpose, and how biology at large can benefit from them.
Impact of Ligands on the Properties of Lanthanide Metal‐Organic Frameworks
Authors: Li Yu , Zhou Xiaojing , Gao Dameng , Cheng Peng , Ma Jian‐Gong , Song Datong 
Published: March 2023

AbstractA series of lanthanide metal‐organic frameworks (MOFs) have been assembled with a series of functionalized [1,1′:4′,1′′‐terphenyl]‐4,4′′‐dicarboxylic acid ligands. The relationship between the ligand properties and the corresponding MOF properties has been studied. The structures of the MOFs depend on the solvent‐ligand and ligand‐ligand interactions, as well as the size of the non‐coordinating functional groups of the ligands. The differences in thermal stability among the ligands are inherited and amplified by corresponding lanthanide MOFs. The ligands bearing methyl, ether, and aldehyde functional groups are capable of sensitizing the emission from the lanthanide centers, whereas the ligand with α,β‐unsaturated ketone functional groups are non‐emissive due to the mismatch of the ligand and metal energy levels.
MAP Inference in Probabilistic Answer Set Programs
Authors: Azzolini Damiano , Bellodi Elena , Riguzzi Fabrizio 
Published: March 2023

AbstractReasoning with uncertain data is a central task in artificial intelligence. In some cases, the goal is to find the most likely assignment to a subset of random variables, named query variables, while some other variables are observed. This task is called Maximum a Posteriori (MAP). When the set of query variables is the complement of the observed variables, the task goes under the name of Most Probable Explanation (MPE). In this paper, we introduce the definitions of cautious and brave MAP and MPE tasks in the context of Probabilistic Answer Set Programming under the credal semantics and provide an algorithm to solve them. Empirical results show that the brave version of both tasks is usually faster to compute. On the brave MPE task, the adoption of a state-of-the-art ASP solver makes the computation much faster than a naive approach based on the enumeration of all the worlds.
Brane brick models for the Sasaki-Einstein 7-manifolds Yp,k(ℂℙ1 × ℂℙ1) and Yp,k(ℂℙ2)
Authors: Franco Sebastián , Ghim Dongwook , Seong Rak-Kyeong 
Published: March 2023

Abstract
The 2d (0, 2) supersymmetric gauge theories corresponding to the classes of Yp,k(ℂℙ1× ℂℙ1) and Yp,k(ℂℙ2) manifolds are identified. The complex cones over these Sasaki-Einstein 7-manifolds are non-compact toric Calabi-Yau 4-folds. These infinite families of geometries are the largest ones for Sasaki-Einstein 7-manifolds whose metrics, toric diagrams, and volume functions are known explicitly. This work therefore presents the largest list of 2d (0, 2) supersymmetric gauge theories corresponding to Calabi-Yau 4-folds with known metrics.
An analytic approach to quasinormal modes for coupled linear systems
Authors: Hui Lam , Podo Alessandro , Santoni Luca , Trincherini Enrico 
Published: March 2023

Abstract
Quasinormal modes describe the ringdown of compact objects deformed by small perturbations. In generic theories of gravity that extend General Relativity, the linearized dynamics of these perturbations is described by a system of coupled linear differential equations of second order. We first show, under general assumptions, that such a system can be brought to a Schrödinger-like form. We then devise an analytic approximation scheme to compute the spectrum of quasinormal modes. We validate our approach using a toy model with a controllable mixing parameter ε and showing that the analytic approximation for the fundamental mode agrees with the numerical computation when the approximation is justified. The accuracy of the analytic approximation is at the (sub-) percent level for the real part and at the level of a few percent for the imaginary part, even when ε is of order one. Our approximation scheme can be seen as an extension of the approach of Schutz and Will [1] to the case of coupled systems of equations, although our approach is not phrased in terms of a WKB analysis, and offers a new viewpoint even in the case of a single equation.
From Moyal deformations to chiral higher-spin theories and to celestial algebras
Authors: Monteiro Ricardo 
Published: March 2023

Abstract
We study the connection of Moyal deformations of self-dual gravity and self-dual Yang-Mills theory to chiral higher-spin theories, and also to deformations of operator algebras in celestial holography. The relation to Moyal deformations illuminates various aspects of the structure of chiral higher-spin theories. For instance, the appearance of the self-dual kinematic algebra in all the theories considered here leads via the double copy to vanishing tree-level scattering amplitudes. Regarding celestial holography, the Moyal deformation of self-dual gravity was recently shown to lead to the loop algebra of W∧, and we obtain here the analogous deformation of a Kac-Moody algebra corresponding to Moyal-deformed self-dual Yang-Mills theory. We also introduce the celestial algebras for various chiral higher-spin theories.
Drell-Yan tails beyond the Standard Model
Authors: Allwicher L. , Faroughy D. A. , Jaffredo F. , Sumensari O. , Wilsch F. 
Published: March 2023

Abstract
We investigate the high-pT tails of the pp → ℓν and pp → ℓℓ Drell-Yan processes as probes of New Physics in semileptonic interactions with an arbitrary flavor structure. For this purpose, we provide a general decomposition of the 2 → 2 scattering amplitudes in terms of form-factors that we match to specific scenarios, such as the Standard Model Effective Field Theory (SMEFT), including all relevant operators up to dimension-8, as well as ultraviolet scenarios giving rise to tree-level exchange of new bosonic mediators with masses at the TeV scale. By using the latest LHC run-II data in the monolepton (eν, μν, τν) and dilepton (ee, μμ, ττ, eμ, eτ, μτ) production channels, we derive constraints on the SMEFT Wilson coefficients for semileptonic four-fermion and dipole operators with the most general flavor structure, as well as on all possible leptoquark models. For the SMEFT, we discuss the range of validity of the EFT description, the relevance of $$ \mathcal{O} $$
O
(1/Λ2) and $$ \mathcal{O} $$
O
(1/Λ4) truncations, the impact of d = 8 operators and the effects of different quark-flavor alignments. Finally, as a highlight, we extract for several New Physics scenarios the combined limits from high-pT processes, electroweak pole measurements and low-energy flavor data for the b → cτν transition, showing the complementarity between these different observables. Our results are compiled in HighPT (https://highpt.github.io), a package in Mathematica which provides a simple way for users to extract the Drell-Yan tails likelihoods for semileptonic effective operators and for leptoquark models.
Precision test of gauge/gravity duality in D0-brane matrix model at low temperature
Authors:   The Monte Carlo String/M-theory (MCSMC) collaboration, Pateloudis Stratos , Bergner Georg , Hanada Masanori , Rinaldi Enrico , Schäfer Andreas , Vranas Pavlos , Watanabe Hiromasa , Bodendorfer Norbert 
Published: March 2023

Abstract
We test the gauge/gravity duality between the matrix model and type IIA string theory at low temperatures with unprecedented accuracy. To this end, we perform lattice Monte Carlo simulations of the Berenstein-Maldacena-Nastase (BMN) matrix model, which is the one-parameter deformation of the Banks-Fischler-Shenker-Susskind (BFSS) matrix model, taking both the large N and continuum limits. We leverage the fact that sufficiently small flux parameters in the BMN matrix model have a negligible impact on the energy of the system while stabilizing the flat directions so that simulations at smaller N than in the BFSS matrix model are possible. Hence, we can perform a precision measurement of the large N continuum energy at the lowest temperatures to date. The energy is in perfect agreement with supergravity predictions including estimations of α′-corrections from previous simulations. At the lowest temperature where we can simulate efficiently (T = 0.25λ1/3, where λ is the ’t Hooft coupling), the difference in energy to the pure supergravity prediction is less than 10%. Furthermore, we can extract the coefficient of the 1/N4 corrections at a fixed temperature with good accuracy, which was previously unknown.
Perspektive Prävention: Psychische Gesundheit von Schülerinnen und Schülern in Deutschland
Authors: Reiß Franziska , Napp Ann-Kathrin , Erhart Michael , Devine Janine , Dadaczynski Kevin , Kaman Anne , Ravens-Sieberer Ulrike 
Published: March 2023

Zusammenfassung
Hintergrund
Die COVID-19-Pandemie hat das Lernen und die Gesundheit von Kindern und Jugendlichen beeinflusst. Ziel des Beitrags ist, psychische Auffälligkeiten von SchülerInnen im Pandemieverlauf, familiäre Belastungen sowie Unterstützungsbedarf in Abhängigkeit von der Schulform zu untersuchen. Ansätze schulischer Prävention und Gesundheitsförderung werden diskutiert.

Methodik
Datengrundlage sind die bevölkerungsbezogene COPSY(COrona und PSYche)-Studie (T1: 05/2020 – T4: 02/2022) und die BELLA-Studie (T0, präpandemischer Vergleich). Je Messzeitpunkt (T) wurden etwa 1600 Familien mit Schulkindern im Alter von 7 bis 19 Jahren befragt. Psychische Auffälligkeiten wurden mittels SDQ erfasst, familiäre Belastungen und Unterstützungsbedarfe mittels Einzelitems im Elternbericht.

Ergebnisse
Psychische Auffälligkeiten haben bei SchülerInnen aller Schulformen zugenommen und stabilisieren sich seither auf hohem Niveau. Besonders betroffen sind GrundschülerInnen (Anstieg von 16,9 % präpandemisch auf 40,0 % zu T2), v. a. bei Verhaltensauffälligkeiten (11,7 % auf 24,6 %) und Hyperaktivität (13,9 % auf 34,0 %). SchülerInnen der Haupt‑/Real‑/Gesamtschule zeigen ebenfalls verstärkte psychische Auffälligkeiten (21,4 % auf 30,4 %). Pandemiebedingte Belastungen sind durchgehend hoch, ebenso der Unterstützungsbedarf von Familien, der sich v. a. an Schule/Lehrende sowie ExpertInnen richtet.

Diskussion
Es besteht ein hoher Bedarf an Maßnahmen der psychischen Gesundheitsförderung und Prävention im Setting Schule. Diese sollten ab dem Grundschulalter im Sinne eines Whole School Approach auf verschiedenen Ebenen ansetzen und außerschulische Akteure einbeziehen. Es bedarf verbindlicher gesetzlicher Vorgaben in allen Bundesländern, um Rahmbedingungen und Strukturen der schulischen Gesundheitsförderung und Prävention, einschließlich der dafür benötigten Ressourcen, zu schaffen.
Inanspruchnahme von Palliativversorgung am Lebensende in Deutschland: zeitlicher Verlauf (2016–2019) und regionale Variabilität
Authors: Ditscheid Bianka , Meissner Franziska , Gebel Cordula , Hennig Beata , Marschall Ursula , Meißner Winfried , Wedding Ulrich , Freytag Antje 
Published: March 2023

Zusammenfassung
Hintergrund
In Deutschland findet Palliativversorgung (PV) ambulant, stationär, allgemein und spezialisiert statt. Da bisher wenig bekannt ist über die zeitliche Entwicklung und regionale Unterschiede in den Versorgungsformen, war es Ziel der vorliegenden Studie, dies zu untersuchen.

Methoden
Retrospektive Routinedatenstudie mit 417.405 in den Jahren 2016–2019 verstorbenen BARMER-Versicherten. Anhand mindestens einmalig abgerechneter Leistung im letzten Lebensjahr ermittelten wir die Inanspruchnahmeraten allgemeiner ambulanter Palliativversorgung (AAPV), besonders qualifizierter und koordinierter palliativmedizinischer Versorgung (BQKPmV), spezialisierter ambulanter Palliativversorgung (SAPV), stationärer Palliativ- und Hospizversorgung. Wir berechneten Zeittrends, regionale Unterschiede und kontrollierten für versorgungsbedarfsbezogene Patientenmerkmale und zugangsbezogene Wohnkreismerkmale.

Ergebnisse
Von 2016 bis 2019 stieg die Inanspruchnahme von PV insgesamt von 33,8 % auf 36,2 %, SAPV von 13,3 % auf 16,0 % (max.: Rheinland-Pfalz), stationärer PV von 8,9 % auf 9,9 % (max.: Thüringen); AAPV sank von 25,8 % auf 23,9 % (max.: Brandenburg); BQKPmV kam 2019 auf 4,4 % (max.: Saarland); Hospiz blieb konstant bei 3,4 %. Die regionale Variabilität der Inanspruchnahmeraten nahm bei AAPV und stationärer PV von 2016 auf 2019 zu, bei SAPV und Hospiz ab, blieb insgesamt jedoch hoch. Die regionalen Unterschiede zeigten sich auch nach Adjustierung.

Diskussion
Zunehmend mehr SAPV, weniger AAPV und hohe, nicht durch bedarfs‑/​zugangsbezogene Merkmale erklärbare regionale Variabilität sprechen dafür, dass sich der Einsatz palliativer Versorgungsformen weniger am Bedarf als an regional verfügbaren Versorgungskapazitäten orientiert. Angesichts demografiebedingt wachsenden PV-Bedarfs und abnehmender personeller Ressourcen ist diese Entwicklung kritisch zu sehen.
Genome-wide association studies reveal novel loci for resistance to groundnut rosette disease in the African core groundnut collection
Authors: Achola Esther , Wasswa Peter , Fonceka Daniel , Clevenger Josh Paul , Bajaj Prasad , Ozias-Akins Peggy , Rami Jean-François , Deom Carl Michael , Hoisington David A. , Edema Richard , Odeny Damaris Achieng , Okello David Kalule 
Published: March 2023

AbstractKey messageWe identified markers associated with GRD resistance after screening an Africa-wide core collection across three seasons in UgandaAbstractGroundnut is cultivated in several African countries where it is a major source of food, feed and income. One of the major constraints to groundnut production in Africa is groundnut rosette disease (GRD), which is caused by a complex of three agents: groundnut rosette assistor luteovirus, groundnut rosette umbravirus and its satellite RNA. Despite several years of breeding for GRD resistance, the genetics of the disease is not fully understood. The objective of the current study was to use the African core collection to establish the level of genetic variation in their response to GRD, and to map genomic regions responsible for the observed resistance. The African groundnut core genotypes were screened across two GRD hotspot locations in Uganda (Nakabango and Serere) for 3 seasons. The Area Under Disease Progress Curve combined with 7523 high quality SNPs were analyzed to establish marker-trait associations (MTAs). Genome-Wide Association Studies based on Enriched Compressed Mixed Linear Model detected 32 MTAs at Nakabango: 21 on chromosome A04, 10 on B04 and 1 on B08. Two of the significant markers were localised on the exons of a putative TIR-NBS-LRR disease resistance gene on chromosome A04. Our results suggest the likely involvement of major genes in the resistance to GRD but will need to be further validated with more comprehensive phenotypic and genotypic datasets. The markers identified in the current study will be developed into routine assays and validated for future genomics-assisted selection for GRD resistance in groundnut.
Selection of materials in metal additive manufacturing via three-way decision-making
Authors: Qin Yuchu , Qi Qunfen , Shi Peizhi , Scott Paul J. , Jiang Xiangqian 
Published: March 2023

AbstractIn this paper, an approach for selection of materials in metal additive manufacturing based on three-way decision-making is proposed. The process of this approach is divided into three stages. First, a decision matrix for a material selection problem in metal additive manufacturing is established based on the basic components of the problem and normalised via a ratio model and a unified rule. Second, the summary loss function, conditional probability, and expected losses of each alternative material are calculated according to the weighted averaging operator, grey relational analysis, and the three-way decision theory, respectively. Third, the three-way decision-making results for the problem are generated according to the developed generation rules and the best material for the problem is selected based on the generated results. The application of the approach is illustrated via a material selection example in metal additive manufacturing. The effectiveness of the approach is demonstrated via a quantitative comparison with several existing approaches. The demonstration results suggest that the proposed approach is as effective as the existing approaches and is more flexible and advantageous in solving a material selection problem in metal additive manufacturing.