bluuebunny/crossref_metadata_2025_split huggingface dataset:
Location matters: Valuing firm‐specific nonmarket risk in the global mining industry
Authors: Oh Chang Hoon , Shapiro Daniel , Ho Shuna Shu Ham , Shin Jiyoung 
Published: March 2020

AbstractResearch summaryUsing collective action and social movement theory, we investigate the potential incentives and ability of stakeholders to engage in collective action that can increase firm‐specific nonmarket risk of mining companies. We argue that proximity to the nearest environmentally sensitive water source increases the probability that local stakeholders will take collective actions that impose material costs on the focal mine. We hypothesize that stock markets recognize this nonmarket risk and apply a discount on announcements related to mines located near such areas, and that these risks are moderated by the type of mineral, the nature of the water source, and the strength of host country institutions. Using a unique data set and an event study method, we find support for most of our arguments.Managerial summaryWe argue that mines located near environmentally sensitive water sources are subject to nonmarket risks arising from the potential collective actions of local stakeholders and their allies. Stakeholder mobilization can impose material costs on a mine in the form of delays, regulatory hurdles, and closure. We find that stock markets recognize these nonmarket risks and apply a discount on announcements by mining companies whose mines are located near environmentally sensitive water sources, particularly rivers. However, we also find that investor reaction is stronger in countries with strong institutions that support collective action. Thus, nonmarket risk management is important even in countries that are typically characterized by low political and institutional risks. We discuss the degree to which these results can be generalized beyond mining.
Searching for knowledge in response to proximate and remote problem sources: Evidence from the U.S. renewable electricity industry
Authors: Dutt Nilanjana , Mitchell Will 
Published: March 2020

AbstractResearch SummaryWe consider how different problem sources—proximate versus remote—relate to heterogeneity in search breadth. While studies of search have established the importance of search breadth, and argued that problems trigger search, they have focused on a single problem source instigating search. We extend prior research by considering how search breadth differs in the presence of proximate and remote problem sources. Because of differences in familiarity with each type of problem, and in expectations of their ability to influence the problem source, problems triggered by remote sources associate with greater breadth. Firms' technological capabilities, meanwhile, temper these findings; capable firms exhibit broader search when facing problems raised by proximate sources. Using data describing the U.S. renewable electricity sector, we generate theoretical and empirical implications.Managerial SummaryWhen facing new problems, firms tend to seek knowledge from various sources to better understand the problem and identify relevant solutions. The source of the problem may be an important trigger to the breadth of search activities, particularly whether the source is proximate or remote. To test this notion, we compare U.S. utility firms' search breadth when facing regulations emphasizing increased renewable generation, from both the federal and the state government. We find that firms tend to search for knowledge about renewable technologies more broadly following federal regulatory actions. However, firms that have previously generated renewable electricity search more broadly following state regulatory actions. By exploring firms' choices in the U.S. renewable electricity sector, our research generates important managerial and public policy implications.
Pattern‐based software process modeling for dependability
Authors: Zhang Xuan , Wang Xu , Yun Wei , Gao Chen , Han Mengting , Liu Hui 
Published: March 2020

AbstractTraditional process modeling focuses on modeling activities for functional requirements. For dependability requirements, a knowledge‐based aspect‐oriented software process modeling approach is proposed. First, we extend the pattern and context to the knowledge graph triplet structure to describe dependability‐oriented knowledge patterns. By applying the patterns, dependability requirements can be organized into dependability‐related activities that are integrated into the software process. Then, aspect‐oriented modeling patterns based on Petri nets are introduced to support the integration of these dependability‐related activities and model dependability‐oriented software processes. Finally, the modeling performance and the subjective usability of the patterns are evaluated by 110 students with different degrees. The results indicate that these two indexes are on the positive track. Hence, the patterns may be the backbone of dependability‐oriented software process modeling.
Advancing provitamin A biofortification in sorghum: Genome‐wide association studies of grain carotenoids in global germplasm
Authors: Cruet‐Burgos Clara , Cox Sarah , Ioerger Brian P. , Perumal Ramasamy , Hu Zhenbin , Herald Thomas J. , Bean Scott R. , Rhodes Davina H. 
Published: March 2020

AbstractVitamin A deficiency is one of the most prevalent nutritional deficiencies worldwide. Sorghum [Sorghum bicolor L. (Moench)] is a major cereal crop consumed by millions of people in regions with high vitamin A deficiency. We quantified carotenoid concentrations in a diverse sorghum panel using high‐performance liquid chromatography and conducted a genome‐wide association study (GWAS) of grain carotenoids to identify genes underlying carotenoid variation. There was moderate variation for β‐carotene (00.8 μg g−1), lutein (0.3–9.4 μg g−1), and zeaxanthin (0.2–9.1 μg g−1), but β‐cryptoxanthin and α‐carotene were nearly undetectable. Genotype had the largest effect size, at 81% for zeaxanthin, 62% for β‐carotene, and 53% for lutein. Using multiple models, GWAS identified several significant associations between carotenoids and single nucleotide polymorphisms (SNPs), some of which colocalized with known carotenoid genes that have not been previously implicated in carotenoid variation. Several of the candidate genes identified have also been identified in maize (Zea mays L.) and Arabidopsis (Arabidopsis thaliana) carotenoid GWAS studies. Notably, an SNP inside the putative ortholog of maize zeaxanthin epoxidase (ZEP) had the most significant association with zeaxanthin and with the ratio between lutein and zeaxanthin, suggesting that ZEP is a major gene controlling sorghum carotenoid variation. Overall findings suggest there is oligogenic inheritance for sorghum carotenoids and suitable variation for marker‐assisted selection. The high carotenoid germplasm and significant associations identified in this study can be used in biofortification efforts to improve the nutritional quality of sorghum.
Radiative neutrino mass model from a mass dimension-11 ∆L = 2 effective operator
Authors: Gargalionis John , Popa-Mateiu Iulia , Volkas Raymond R. 
Published: March 2020

Abstract
We present the first detailed phenomenological analysis of a radiative Majorana neutrino mass model constructed from opening up a ∆L = 2 mass-dimension-11 effective operator constructed out of standard model fields. While three such operators are generated, only one dominates neutrino mass generation, namely $$ {O}_{47}=\overline{L^C}L\overline{Q^C}L\overline{Q}{Q}^C HH, $$

O
47

=

L
C

¯

L

Q
C

¯

L

Q
¯

Q
C

HH
,
where L denotes lepton doublet, Q quark doublet and H Higgs doublet. The under- lying renormalisable theory contains the scalars $$ {S}_1\sim \left(\overline{3},1,1/3\right) $$

S
1

∼

3
¯

1

1
/
3

coupling as a diquark, $$ {S}_3\sim \left(\overline{3},3,1/3\right) $$

S
3

∼

3
¯

3

1
/
3

coupling as a leptoquark, and Φ3 ∼ (3, 3, 2/3), which has no Yukawa couplings but does couple to S1 and S3 in addition to the gauge fields. Neutrino masses and mixings are generated at two-loop order. A feature of this model that is different from many other radiative models is the lack of proportionality to any quark and charged- lepton masses of the neutrino mass matrix. One consequence is that the scale of new physics can be as high as 107 TeV, despite the operator having a high mass dimension. This raises the prospect that ∆L = 2 effective operators at even higher mass dimensions may, when opened up, produce phenomenologically-viable radiative neutrino mass models. The parameter space of the model is explored through benchmark slices that are subject to experimental constraints from charged lepton flavour-violating decays, rare meson de- cays and neutral-meson mixing. The acceptable parameter space can accommodate the anomalies in RK (∗) and the anomalous magnetic moment of the muon.
F-theory models with U(1) × ℤ2, ℤ4 and transitions in discrete gauge groups
Authors: Kimura Yusuke 
Published: March 2020

Abstract
We examine the proposal in the previous paper to resolve the puzzle in transitions in discrete gauge groups. We focus on a four-section geometry to test the proposal. We observed that a discrete ℤ2 gauge group enlarges and U(1) also forms in F-theory along any bisection geometries locus in the four-section geometry built as the complete intersections of two quadrics in ℙ3 fibered over any base. Furthermore, we demonstrate that giving vacuum expectation values to hypermultiplets breaks the enlarged U(1) × ℤ2 gauge group down to a discrete ℤ4 gauge group via Higgsing. We thus confirmed that the proposal in the previous paper is consistent when a four-section splits into a pair of bisections in the four-section geometry. This analysis may be useful for understanding the Higgsing processes occurring in the transitions in discrete gauge groups in six-dimensional F-theory models. We also discuss the construction of a family of six-dimensional F-theory models in which U(1) × ℤ4 forms.
Triple Higgs production at hadron colliders at NNLO in QCD
Authors: de Florian Daniel , Fabre Ignacio , Mazzitelli Javier 
Published: March 2020

Abstract
In this work we analyse the triple Higgs boson production cross section at hadron colliders via gluon fusion, and present for the first time the full set of QCD NNLO corrections in the heavy top limit. In order to account for finite top mass effects we perform two different reweighting procedures, and study the dependence of the result on the choice of the approximation. Combining the most accurate predictions available to date, we present the following result for the total NNLO cross section for triple Higgs boson production at a 100 TeV collider: $$ {\sigma}_{\mathrm{NNLO}}={5.56}_{-6\%}^{+5\%} $$

σ
NNLO

=

5.56

−
6
%

+
5
%

± 20% fb, where the first uncertainty is an estimate for higher order effects from scale variations, while the last one is an estimate for the missing finite top mass effects.
Geological development of the Limpopo Shelf (southern Mozambique) during the last sealevel cycle
Authors: Wenau Stefan , Preu Benedict , Spiess Volkhard 
Published: March 2020

AbstractPaleo-shorelines on continental shelves give insights into the complex development of coastlines during sealevel cycles. This study investigates the geologic development of the Limpopo Shelf during the last sealevel cycle using multichannel seismic and acoustic datasets acquired on the shelf in front of the Limpopo River mouth. A detailed investigation of seismic facies, shelf bathymetry, and a correlation to sea level revealed the presence of numerous submerged shorelines on the shelf. These shorelines are characterized by distinct topographic ridges and are interpreted as coastal dune ridges that formed in periods of intermittent sealevel still-/slowstand during transgression. The shorelines are preserved due to periods of rapid sealevel rise (melt water pulses) that led to the overstepping of the dune ridges as well as due to early cementation of accumulated sediments that increased the erosive resistance of the ridges. The high along-shelf variability of the submerged dune ridges is interpreted as a result of pre-existing topography affecting shoreline positions during transgression. The pre-existing topography is controlled by the underlying sedimentary deposits that are linked to varying fluvial sediment input at different points on the shelf. The numerous prominent submerged dune ridges form barriers for the modern fluvial sediment from the Limpopo River and dam sediment on the inner shelf. They may also facilitate along-shelf current-induced sediment transport.
The effect of coronal splits on the structural stability of bi-condylar tibial plateau fractures: a biomechanical investigation
Authors: Samsami Shabnam , Pätzold Robert , Winkler Martin , Herrmann Sven , Augat Peter 
Published: March 2020

AbstractIntroductionSurgical treatment of bi-condylar tibial plateau fractures is still challenging due to the complexity of the fracture and the difficult surgical approach. Coronal fracture lines are associated with a high risk of fixation failure. However, previous biomechanical studies and fracture classifications have disregarded coronal fracture lines.Materials and methodsThis study aimed to develop a clinically relevant fracture model (Fracture C) and compare its mechanical behavior with the traditional Horwitz model (Fracture H). Twelve samples of fourth-generation tibia Sawbones were utilized to realize two fracture models with (Fracture C) or without (Fracture H) a coronal fracture line and both fixed with lateral locking plates. Loading of the tibial plateau was introduced through artificial femur condyles to cyclically load the fracture constructs until failure. Stiffness, fracture gap movements, failure loads as well as relative displacements and rotations of fracture fragments were measured.ResultsThe presence of a coronal fracture line reduced fracture construct stiffness by 43% (p = 0.013) and decreased the failure load by 38% from 593 ± 159 to 368 ± 63 N (p = 0.016). Largest displacements were observed at the medial aspect between the tibial plateau and the tibial shaft in the longitudinal direction. Again, the presence of the coronal fracture line reduced the stability of the fragments and created increased joint incongruities.ConclusionsCoronal articular fracture lines substantially affect the mechanical response of tibia implant structures specifically on the medial side. With this in mind, utilizing a clinically relevant fracture model for biomechanical evaluations regarding bi-condylar tibial plateau fractures is strongly recommended.
A Family of New Borel Subalgebras of Quantum Groups
Authors: Lentner Simon , Vocke Karolina 
Published: March 2020

AbstractWe construct a family of right coideal subalgebras of quantum groups, which have the property that all irreducible representations are one-dimensional, and which are maximal with this property. The obvious examples for this are the standard Borel subalgebras expected from Lie theory, but in a quantum group there are many more. Constructing and classifying them is interesting for structural reasons, and because they lead to unfamiliar induced (Verma-)modules for the quantum group. The explicit family we construct in this article consists of quantum Weyl algebras combined with parts of a standard Borel subalgebra, and they have a triangular decomposition. Our main result is proving their Borel subalgebra property. Conversely we prove under some restrictions a classification result, which characterizes our family. Moreover we list forUq(4) all possible triangular Borel subalgebras, using our underlying results and additional by-hand arguments. This gives a good working example and puts our results into context.
International mobility and education inequality among Brazilian undergraduate students
Authors: Dias Lopes Alice 
Published: March 2020

AbstractThis paper aims to understand the effect of international mobility in higher education on Brazilian education inequality by examining the Science Without Borders programme for undergraduate students. The SWB aimed to award 101,000 scholarships for Brazilian undergraduate students to conduct part of their studies in a foreign university between 2011 and 2015. This paper draws on research on education inequalities and international mobility to investigate the patterns of inequality among undergraduate students participating in the SWB, considering the period of higher education expansion in Brazil. Using the ENEM datasets, inequality of access and inequality within the programme were analysed. The results show that students with parents with higher levels of education and higher income were more likely to participate in the SWB programme. Moreover, students with higher parental education and family income tended to study at a prestigious university during the programme.
Methodology to analyze gene expression patterns of early mammary development in pig models
Authors: Moss Matthew A. , Williams Breanne , Ferdous Farzana , Scott Tom , Dunn Heather W. 
Published: March 2020

AbstractIn mammary gland development, normal stem cell activity occurs in the embryonic stage and postnatally. Research supports that certain breast cancers contain a small sub-population of cells that mimic stem-like activity. It is believed stem cell activation in the mutated mature human mammary tissue is what drives quiescent epithelial cells to convert to mesenchymal states initiating migration, invasion, and metastasis in breast cancer. The goal of the work reported herein was to investigate early mammary development gene expression in the postnatal pig using fine needle biopsy methods in order to establish a reliable model for human breast cancer detection. Tissue samples were collected from pig mammary glands beginning at Day 11 of age through Day 39 in order to capture early postnatal-growth gene expression. Based on the initial clustering analysis, two distinct clusters of gene expression profiles occurred before and after Day 25 of mammary development. Gene set enrichment analysis (GSEA) ontology indicated the cellular processes that changed after Day 25, and many of these processes were implicated in epithelial–mesenchymal transition (EMT) signaling events. Gene expression in the postnatal pig was compared with the Epithelial–Mesenchymal Transition gene database (dbEMT) confirming the presence of EMT activity in this early developmental program. Information from this study will provide insight into early postnatal mammary gland development. In addition, mechanisms exploited by mutated mammary epithelial cells leading to cancer initiation and growth may be detected considering that mutated mammary epithelial cells can reactivate early developmental signals.
Empirically Based Classification of Peer Violence in a Nationally Representative Sample of Adolescents: a Latent Class Analysis
Authors: Várnai Dóra E. , Horváth Zsolt , Jármi Éva , Urbán Róbert , Demetrovics Zsolt , Németh Ágnes , Kökönyei Gyöngyi 
Published: March 2020

AbstractThe aim of the study was to investigate the pattern of traditional- and cyberbullying, and fighting involvement and identify its most important correlates in a nationally representative sample. We analyzed the data of Hungarian 11–18-year-old adolescents in the framework of the Health Behaviour in School-aged Children Study. A latent class analysis was performed first and afterwards a multinomial logistic regression analysis to examine factors explaining class membership. Four latent classes were identified: “high probability involvement in all forms of violence”; “low involvement in any forms of violence”; “predominantly involved in traditional bullying and fighting”; “high engagement in online victimization”. As no clear victim or perpetrator group was identified, a high overlap between these violence involvement statuses is reinforced.
The Dangers of Fiscal Decentralization and Public Service Delivery: a Review of Arguments
Authors: Arends Helge 
Published: March 2020

AbstractThe prevailing belief is that local governments, which are closer to their citizens, can deliver public goods much more efficiently than a central government can. Yet skeptics argue that fiscal decentralization can be dangerous. The underlying motivation of this article is to review the basic rationale behind decentralizing public services from the perspective of three main controversies emerging from the literature on decentralization: (in)efficient, (un)equal, and (un)accountable service provision at the local level. For illustrative purposes, this review focuses on two complex and socially important sectors, health and education. The overall conclusion is that the dangers of decentralization are highly relevant to local public service provision, although there is evidence supporting both the decentralization-enthusiastic and the decentralization-skeptical views. When decentralizing public services, reformers should know the specificities of the public service, the local context, and the effects of the design of fiscal relations like the backs of their hands. If things go wrong, recentralization should be an option.
Outcome of Fetuses with Cavum Velum Interpositi Cyst—Experience of a Tertiary Centre
Authors: Desai Purvi , Chauhan Keshvi , Deshpande Shalmali , Chauhan Binodini , Jhawar Manisha 
Published: March 2020

AbstractCavum velum interpositi is the space between the layers of the tela choroidea of the third ventricle. This space occasionally appears as an anechoic lesion in routine mid-trimester targeted scans because of the presence of fluid inside. This is then called a cavum velum interpositi (CVI) cyst. CVI cyst is a rare finding with varied outcomes. Councellings management are consequently confusing. This study was aimed at assessing the outcome of CVI cysts to guide the treating clinician and address apprehensions of the expecting couple. Genetic evaluation and MRI to prove the inncocuous nature of CVI cysts is expensive and needs to be offered in an appropriate perspective. A fetal Neurosonogram was conducted in all the targeted scans and the brain was visualized in coronal, axial, sagittal and oblique saggital planes. The fetuses with a CVI cyst were followed antenatally and up to 6 months post delivery. The study concluded that CVI cysts appear to be an innocuous finding as neurological outcome of all four cases who continued pregnancy was normal. One patient terminated the pregnancy for an extra Central Nervous System anomaly.
Extension of B-spline Material Point Method for unstructured triangular grids using Powell–Sabin splines
Authors: de Koster Pascal , Tielen Roel , Wobbes Elizaveta , Möller Matthias 
Published: March 2020

AbstractThe Material Point Method (MPM) is a numerical technique that combines a fixed Eulerian background grid and Lagrangian point masses to simulate materials which undergo large deformations. Within the original MPM, discontinuous gradients of the piecewise-linear basis functions lead to the so-called grid-crossing errors when particles cross element boundaries. Previous research has shown that B-spline MPM (BSMPM) is a viable alternative not only to MPM, but also to more advanced versions of the method that are designed to reduce the grid-crossing errors. In contrast to many other MPM-related methods, BSMPM has been used exclusively on structured rectangular domains, considerably limiting its range of applicability. In this paper, we present an extension of BSMPM to unstructured triangulations. The proposed approach combines MPM with $$C^1$$

C
1

-continuous high-order Powell–Sabin spline basis functions. Numerical results demonstrate the potential of these basis functions within MPM in terms of grid-crossing-error elimination and higher-order convergence.