bluuebunny/crossref_metadata_2025_split huggingface dataset:
Witten anomaly in 4d heterotic compactificaitons with $$ \mathcal{N} $$ = 2 supersymmetry
Authors: Enoki Yuichi , Sato Yotaro , Watari Taizan 
Published: July 2020

Abstract
We showed that there is no SU(2) Witten anomaly in a large class of 4d $$ \mathcal{N} $$
N
= 2 supersymmetric Heterotic string compactifications. The consistency conditions we consider are the modularity of the new supersymmetric index, the integrality of BPS indices, and the discrete Peccei-Quinn shift symmetries. We also found an example where these conditions are not sufficient to show that the theory is anomaly free. This suggests that there are more conditions in the worldsheet SCFT essential for consistent string compactifications.
Fourier Analysis of Periodic Radon Transforms
Authors: Railo Jesse 
Published: July 2020

AbstractWe study reconstruction of an unknown function from its d-plane Radon transform on the flat torus $${\mathbb {T}}^n = {\mathbb {R}}^n /{\mathbb {Z}}^n$$

T

n

=

R

n

/

Z

n

when $$1 \le d \le n-1$$

1
≤
d
≤
n
-
1

. We prove new reconstruction formulas and stability results with respect to weighted Bessel potential norms. We solve the associated Tikhonov minimization problem on $$H^s$$

H
s

Sobolev spaces using the properties of the adjoint and normal operators. One of the inversion formulas implies that a compactly supported distribution on the plane with zero average is a weighted sum of its X-ray data.
Trends in sample preparation and separation methods for the analysis of very polar and ionic compounds in environmental water and biota samples
Authors: Knoll Sarah , Rösch Tobias , Huhn Carolin 
Published: July 2020

AbstractRecent years showed a boost in knowledge about the presence and fate of micropollutants in the environment. Instrumental and methodological developments mainly in liquid chromatography coupled to mass spectrometry hold a large share in this success story. These techniques soon complemented gas chromatography and enabled the analysis of more polar compounds including pesticides but also household chemicals, food additives, and pharmaceuticals often present as traces in surface waters. In parallel, sample preparation techniques evolved to extract and enrich these compounds from biota and water samples. This review article looks at very polar and ionic compounds using the criterion logP ≤ 1. Considering about 240 compounds, we show that (simulated) log D values are often even lower than the corresponding logPvalues due to ionization of the compounds at our reference pH of 7.4. High polarity and charge are still challenging characteristics in the analysis of micropollutants and these compounds are hardly covered in current monitoring strategies of water samples. The situation is even more challenging in biota analysis given the large number of matrix constituents with similar properties. Currently, a large number of sample preparation and separation approaches are developed to meet the challenges of the analysis of very polar and ionic compounds. In addition to reviewing them, we discuss some trends: for sample preparation, preconcentration and purification efforts by SPE will continue, possibly using upcoming mixed-mode stationary phases and mixed beds in order to increase comprehensiveness in monitoring applications. For biota analysis, miniaturization and parallelization are aspects of future research. For ionic or ionizable compounds, we see electromembrane extraction as a method of choice with a high potential to increase throughput by automation. For separation, predominantly coupled to mass spectrometry, hydrophilic interaction liquid chromatography applications will increase as the polarity range ideally complements reversed phase liquid chromatography, and instrumentation and expertise are available in most laboratories. Two-dimensional applications have not yet reached maturity in liquid-phase separations to be applied in higher throughput. Possibly, the development and commercial availability of mixed-mode stationary phases make 2D applications obsolete in semi-targeted applications. An interesting alternative will enter routine analysis soon: supercritical fluid chromatography demonstrated an impressive analyte coverage but also the possibility to tailor selectivity for targeted approaches. For ionic and ionizable micropollutants, ion chromatography and capillary electrophoresis are amenable but may be used only for specialized applications such as the analysis of halogenated acids when aspects like desalting and preconcentration are solved and the key advantages are fully elaborated by further research.
Discovering dependencies with reliable mutual information
Authors: Mandros Panagiotis , Boley Mario , Vreeken Jilles 
Published: July 2020

AbstractWe consider the task of discovering functional dependencies in data for target attributes of interest. To solve it, we have to answer two questions: How do we quantify the dependency in a model-agnostic and interpretable way as well as reliably against sample size and dimensionality biases? How can we efficiently discover the exact or$$\alpha $$α-approximate top-kdependencies? We address the first question by adopting information-theoretic notions. Specifically, we consider the mutual information score, for which we propose a reliable estimator that enables robust optimization in high-dimensional data. To address the second question, we then systematically explore the algorithmic implications of using this measure for optimization. We show the problem is NP-hard and justify worst-case exponential-time as well as heuristic search methods. We propose two bounding functions for the estimator, which we use as pruning criteria in branch-and-bound search to efficiently mine dependencies with approximation guarantees. Empirical evaluation shows that the derived estimator has desirable statistical properties, the bounding functions lead to effective exact and greedy search algorithms, and when combined, qualitative experiments show the framework indeed discovers highly informative dependencies.
Loss of progesterone receptor is associated with distinct tyrosine kinase profiles in breast cancer
Authors: Tahiri Andliena , Tekpli Xavier , Satheesh Somisetty V. , DeWijn Rik , Lüders Torben , Bukholm Ida R. , Hurtado Antoni , Geisler Jürgen , Kristensen Vessela N. 
Published: July 2020

Abstract
Purpose
The aim of this study was to assess protein tyrosine kinase profiles in primary breast cancer samples in correlation with the distinct hormone and growth receptor profiles ER, PR, and HER2.

Experimental design
Pamchip® microarrays were used to measure the phosphorylation of 144 tyrosine kinase substrates in 29 ER+ breast cancer samples and cell lines MCF7, BT474 and ZR75-1. mRNA expression data from the METABRIC cohort and publicly available PR chip-sequencing data were used for validation purposes, together with RT-PCR.

Results
In ER+ breast tumors and cell lines, we observed that the loss of PR expression correlated to higher kinase activity in samples and cell lines that were HER2−. A number of kinases, representing mostly proteins within the PI3K/AKT pathway, were identified as responsible for the differential phosphorylation between PR− and PR+ in ER+/HER2− tumors. We used the METABRIC cohort to analyze mRNA expression from 977 ER+/HER2− breast cancers. Twenty four kinase-encoding genes were identified as differentially expressed between PR+ and PR−, dividing ER+/HER2− samples in two distinct clusters with significant differences in survival (p < 0.05). Four kinase genes, LCK, FRK, FGFR4, and MST1R, were identified as potential direct targets of PR.

Conclusions
Our results suggest that the PR status has a profound effect on tyrosine kinases, especially for FGFR4 and LCK genes, in ER+/HER2− breast cancer patients. The influence of these genes on the PI3K/AKT signaling pathway may potentially lead to novel drug targets for ER+/PR− breast cancer patients.
Constituency Norms Facilitate Unethical Negotiation Behavior Through Moral Disengagement
Authors: Aaldering Hillie , Zerres Alfred , Steinel Wolfgang 
Published: July 2020

AbstractWhile organizations strive for ethical conduct, the activity of negotiating offers strong temptations to employ unethical tactics and secure benefits for one’s own party. In four experiments, we examined the role of constituency communication in terms of their attitudes towards (un)ethical and competitive conduct on negotiators’ willingness and actual use of unethical tactics. We find that the mere presence of a constituency already increased representatives’ willingness to engage in unethical behavior (Experiment 1). More specifically, a constituency communicating liberal (vs. strict) attitudes toward unethical conduct helps negotiators to justify transgressions and morally disengage from their behavior, resulting in an increased use of unethical negotiation tactics (Experiment 2–3). Moreover, constituents’ endorsement of competitive strategies sufficed to increase moral disengagement and unethical behavior of representative negotiators in a similar fashion (Experiment 4ab). Our results caution organizational practice against advocating explicit unethical and even competitive tactics by constituents: it eases negotiators’ moral dilemma towards unethical conduct.
Robust design optimization of a nonlinear monostable energy harvester with uncertainties
Authors: Li Yi , Zhou Shengxi , Litak Grzegorz 
Published: July 2020

AbstractBased on the improved interval extension, a robust optimization method for nonlinear monostable energy harvesters with uncertainties is developed. In this method, the 2nd order terms in the interval extension formula of the objective function (output voltage) are kept so this approach is suitable for a nonlinear energy harvesting system. To illustrate this method, uncertain mass, uncertain capacitance and uncertain electromechanical coupling coefficient are optimized to maximize the central point of output voltage whose deviation of which is simultaneously minimized. Then, an optimal design with different robustness is obtained. The results also show that the robustness of the optimal design of nonlinear monostable energy harvesters is increased, but the cost of performance has to be paid for. Overall, the framework provides the optimal design for nonlinear energy harvesters (monostable, bistable, tristable, multistable harvesters).
NDNetGaming - development of a no-reference deep CNN for gaming video quality prediction
Authors: Utke Markus , Zadtootaghaj Saman , Schmidt Steven , Bosse Sebastian , Möller Sebastian 
Published: July 2020

AbstractGaming video streaming services are growing rapidly due to new services such as passive video streaming of gaming content, e.g. Twitch.tv, as well as cloud gaming, e.g. Nvidia GeForce NOW and Google Stadia. In contrast to traditional video content, gaming content has special characteristics such as extremely high and special motion patterns, synthetic content and repetitive content, which poses new opportunities for the design of machine learning-based models to outperform the state-of-the-art video and image quality approaches for this special computer generated content. In this paper, we train a Convolutional Neural Network (CNN) based on an objective quality model, VMAF, as ground truth and fine-tuned it based on subjective image quality ratings. In addition, we propose a new temporal pooling method to predict gaming video quality based on frame-level predictions. Finally, the paper also describes how an appropriate CNN architecture can be chosen and how well the model performs on different contents. Our result shows that among four popular network architectures that we investigated, DenseNet performs best for image quality assessment based on the training dataset. By training the last 57 convolutional layers of DenseNet based on VMAF values, we obtained a high performance model to predict VMAF of distorted frames of video games with a Spearman’s Rank correlation (SRCC) of 0.945 and Root Mean Score Error (RMSE) of 7.07 on the image level, while achieving a higher performance on the video level leading to a SRCC of 0.967 and RMSE of 5.47 for the KUGVD dataset. Furthermore, we fine-tuned the model based on subjective quality ratings of images from gaming content which resulted in a SRCC of 0.93 and RMSE of 0.46 using one-hold-out cross validation. Finally, on the video level, using the proposed pooling method, the model achieves a very good performance indicated by a SRCC of 0.968 and RMSE of 0.30 for the used gaming video dataset.
The hurdles of academic publishing from the perspective of journal editors: a case study
Authors: Mrowinski Maciej J. , Fronczak Agata , Fronczak Piotr , Nedic Olgica , Dekanski Aleksandar 
Published: July 2020

AbstractIn this paper, we provide insight into the editorial process as seen from the perspective of journal editors. We study a dataset obtained from the Journal of the Serbian Chemical Society, which contains information about submitted and rejected manuscripts, in order to find differences between local (Serbian) and external (non-Serbian) submissions. We show that external submissions (mainly from India, Iran and China) constitute the majority of all submissions, while local submissions are in the minority. Most of submissions are rejected for technical reasons (e.g. wrong manuscript formatting or problems with images) and many users resubmit the same paper without making necessary corrections. Manuscripts with just one author are less likely to pass the technical check, which can be attributed to missing metadata. Articles from local authors are better prepared and require fewer resubmissions on average before they are accepted for peer review. The peer review process for local submissions takes less time than for external papers and local submissions are more likely to be accepted for publication. Also, while there are more men than women among external users, this trend is reversed for local users. In the combined group of local and external users, articles submitted by women are more likely to be published than articles submitted by men.
Destructive leadership in organizational research: a bibliometric approach
Authors: Scheffler Maximilian , Brunzel Johannes 
Published: July 2020

AbstractThe dark side leadership literature remains a highly relevant yet fragmented and ambiguous literature stream. Therefore, we conduct a bibliometric analysis using co-citation and pathfinder analysis to describe and visualize the intellectual origins of the field by combining predefined word lists with expert validation. Our results suggest that there are key authors as well as other distinctive characteristics of research that also guides future research. Thematic clusters of the dark side literature suggest heightened emphasis on single dark traits such as narcissism while other constructs such as psychopathy receive little attention. Articles by Tepper can be linked to a central position in the network. Implications for theory and practice are discussed.
How agriculture, manufacture, and urbanization induced carbon emission? The case of Indonesia
Authors: Prastiyo Slamet Eko , Irham  , Hardyastuti Suhatmini , Jamhari  
Published: July 2020

AbstractThe agriculture and manufacturing sectors are the backbones of the Indonesian economy; for this reason, research on the effects of these sectors on carbon emissions is an important subject. This work adds urbanization to enrich research on the Environmental Kuznets Curve (EKC) in Indonesia. The results of this study indicate that the EKC hypothesis was confirmed in Indonesia with a turning point of 2057.89 USD/capita. The research results show that all variables affect the escalation of greenhouse gas emissions in Indonesia. Furthermore, there is a bidirectional causality relationship between emissions with economic growth, emissions with agricultural sector, emissions with manufacturing sector, economic growth with agricultural sector, and economic growth with manufacturing. The unidirectional causality is found in emissions by urbanization and economic growth by urbanization. To reduce the impact of environmental damage caused by the activities of agriculture, manufacturing, and urbanization sectors, it is recommended that the government conduct water-efficient rice cultivation and increase the use of renewable energy.
Hip-Sparing Equalization Procedures for Leg-Length Discrepancy after Total Hip Arthroplasty: A Retrospective Case Series
Authors: Makhdom Asim M. , Fragomen Austin T. , Rozbruch S. Robert 
Published: July 2020

Background Leg-length discrepancy (LLD) after primary THA is not uncommon. Little is known, however, about the role of hip-sparing procedures for equalization of LLD after THA. Questions/Purposes The aim of this study is to report our experiences with these techniques in patients presenting at one institution over a 10-year period. Methods We retrospectively reviewed records at one institution to find patients who had sought surgical treatment for LLD after THA between January 2007 and August 2017. Patients who had LLD related to conditions other than the THA, such as bone loss or traumatic defects, were excluded. We recorded the time after THA, laterality, and LLD. Assessment of LLD was performed using clinical and radiographic examinations. Patient demographics and true LLD were recorded, as were prior conservative treatment, equalization procedure performed, final leg length after equalization surgery, time to healing, and complications. Results After exclusion of patients with LLD related to other causes, eight patients in whom conservative treatment had failed and who had undergone hip-sparing leg-length equalization surgery were included in the study. The average age was 44.6 years (range, 18 to 66 years). Seven of the patients were female. The pre-operative mean LLD was 3.1 cm (range 1.5 to 7 cm). In those who were long after THA, ipsilateral (THA-side) shortening of femur with a retrograde intramedullary nail (IMN; n = 1) or with a plate ( n = 1) was performed. In those who were short after THA, ipsilateral femur lengthening with retrograde Precice nails ( n = 2), ipsilateral tibial lengthening with Precice nails ( n = 2), or contralateral femur shortening with a retrograde IMN ( n = 2) was performed. The average time to full consolidation or union was 6.6 months (range, 2 to 19 months). Two patients had delayed union. All patients but one were satisfied with final results. Conclusion We believe that hip-sparing equalization procedures can be part of the treatment algorithm of LLD after THA. These advancements in the field are promising and might expand the indications of lengthening and equalization procedures to include LLD after THA.
Gleichheit durch Gleichstellungsmaßnahmen?
Authors: Peters Eileen , Drobe Jil , Abendroth Anja 
Published: July 2020

ZusammenfassungDieser Beitrag untersucht, inwiefern Mentoringprogramme und betriebliche Frauenquoten als zwei zentrale Gleichstellungsmaßnahmen mit geringeren geschlechtsspezifischen Einkommensungleichheiten in deutschen Großbetrieben einhergehen. Zusätzlich wird der Frage nachgegangen, inwiefern die Bedeutung dieser Gleichstellungsmaßnahmen zwischen Beschäftigtengruppen mit unterschiedlichem Qualifikationsniveau variiert und ob traditionelle Geschlechterideologien innerhalb der Belegschaft die Effektivität von Gleichstellungsmaßnahmen konterkarieren. Auf Grundlage von Linked-Employer-Employee-Daten, die sowohl administrative als auch Befragungsdaten für 5072 Beschäftigte in 93 Betrieben beinhalten, wurden Regressionsanalysen mit betriebsbezogenen Fixed Effects berechnet. Die Ergebnisse zeigen, dass Einkommensbenachteiligungen von Frauen innerhalb von Betrieben nicht mit dem Angebot von Mentoringprogrammen variieren. Demgegenüber zeigen sich geringere Einkommensungleichheiten zwischen den Geschlechtern in Betrieben mit Frauenquote. Dies gilt allerdings nur für Beschäftigte mit hohem Qualifikationsniveau und in Betrieben, in denen gleichzeitig eher egalitäre Geschlechterideologien in der Belegschaft vorherrschen. In traditionellen Betriebskontexten bestehen trotz Frauenquote geschlechtsspezifische Einkommensungleichheiten zwischen Beschäftigten mit höherem Qualifikationsniveau.
Detection of the intimal tear in aortic dissection and ulcer-like projection in intramural hematoma: usefulness of full-phase retrospective ECG-gated CT angiography
Authors: Yanagaki Satoru , Ueda Takuya , Masuda Atsuro , Ota Hideki , Onaka Yuta , Kojima Masatoshi , Hattori Takashi , Mihara Wahei , Takase Kei 
Published: July 2020

AbstractPurposeTo compare the accuracy of non-electrocardiogram (ECG)-gated CT angiography (CTA), single-diastolic-phase ECG-gated CTA, and full-phase ECG-gated CTA in detecting the intimal tear (IT) in aortic dissection (AD) and ulcer-like projection (ULP) in intramural hematoma (IMH).Materials and methodsA total of 81 consecutive patients with AD and IMH of the thoracic aorta were included in this single-center retrospective study. Non-ECG-gated CTA, single-diastolic-phase ECG-gated CTA, and full-phase ECG-gated CTA were used to detect the presence of the IT and ULP in thoracic aortic regions including the ascending aorta, aortic arch, and proximal and distal descending aorta.ResultsThe accuracy of detecting the IT and ULP was significantly greater using full-phase ECG-gated CTA (88% [95% CI: 100%, 75%]) than non-ECG-gated CTA (72% [95% CI: 90%, 54%],P = 0.001) and single-diastolic-phase ECG-gated CTA (76% [95% CI: 93%, 60%],P = 0.008).ConclusionFull-phase ECG-gated CTA is more accurate in detecting the IT in AD and ULP in IMH, than non-ECG-gated CTA and single-diastolic-phase ECG-gated CTA.
Positive downstream indirect reciprocity scale (PoDIRS–6): Construction and psychometric characteristics
Authors: Szcześniak Małgorzata , Świątek Agata H. , Świątek Maria A. , Rodzeń Wojciech 
Published: July 2020

AbstractDownstream indirect reciprocity (DIR) is a behavior taking the form of a reaction to an individual’s kindness or reluctance towards a third party. The literature shows that the concept of DIR may be understood in many different systems of assessing an individual’s social exchange, retributive justice, religious belief systems, rudimentary moral systems, and general philosophical treatment, as well as from a natural selection and evolutionary approach. Given the importance of an empirically based examination of DIR, the aim of the current research carried out through Studies 1–5 was fourfold: (a) develop a reliable and psychometrically sound Downstream Indirect Reciprocity Scale (DIRS); (b) establish and examine the factor structure of the DIRS and its statistical properties, using exploratory factor analysis (EFA) (Study 1); (c) assess the relationship between the observed measures and latency factor of DIR through confirmatory factor analysis (CFA) (Studies 2–5); (d) measure the internal consistency and nomological validity (Studies 2–5). Although the first assumption consisted in constructing a questionnaire that would measure both positive and negative aspects of downstream reciprocity, the outcomes of the EFA and CFA confirmed the final version of the scale that assesses only the positive dimension of DIR (Positive Downstream Indirect Reciprocity Scale; PoDIRS-6). In fact, the EFA showed the one factor structure of the new measure, and the findings of the CFAs indicated that it meets the criteria for good fit. All of the analyses conducted defined a preliminary nomological network of convergent constructs (gratitude, life satisfaction, religiosity, and moral concerns). The PoDIRS-6 is the first scale designed to assess a set of ideas that are expressed in the belief that an individual who has done something good might get help from other people in the future. It is encouraged that a questionnaire be developed which will measure the belief that human actions can be punished or reproved when they are negative and morally bad (Negative Downstream Indirect Reciprocity Scale; NeDIRS).