bluuebunny/crossref_metadata_2025_split huggingface dataset:
Talent management practices: perceptions of academics in Egyptian public business schools
Authors: Mousa Mohamed , Ayoubi Rami M. 
Published: September 2019

Purpose
The purpose of this paper is to focus on 3 out of 24 business schools in Egypt in order to investigate their talent management practices of academics.

Design/methodology/approach
A total of 350 academics were contacted and 245 of them were interviewed in 49 face-to-face focus groups. The interview length for each focus group is about 45 min and is conducted in Arabic, the mother tongue of all respondents. Upon conducting the interviews, the authors used thematic analysis to determine the main ideas in the transcripts.

Findings
The authors did not detect any systematic approach for the management of academic talent in the chosen public business schools. Instead, there were irresponsible unorderly procedures undertaken by these business schools in staffing, empowering, motivating, evaluating and retaining those talents. Furthermore, the authors realized an absence of many cultural and technical dimensions like adaptability, consistency and knowledge sharing which may hurdle academic staff desires to do their best effort in teaching and conducting research. Moreover, these addressed academic members narrow perception of the concept “talent” that includes only musical and sports figures – the matter that reflects their lack of understanding for one of the hottest concepts in HR academic and practical arenas nowadays.

Research limitations/ implications
The focus is only on a single perspective (academics) and a single area (Upper Egypt) – a matter that neglects a variety of views (e.g. minister of Egyptian higher education and schools’ deans). Additionally, the results/findings of this study cannot be generalized to academic settings in other countries because the data are collected only from public business schools in Upper Egypt.

Originality/value
This paper contributes by filling a gap in HR management, in which empirical studies on the practices of managing talents have been limited so far.
Predicting the wear rate of AA6082 aluminum surface composites produced by friction stir processing via artificial neural network
Authors: Dinaharan Isaac , Palanivel Ramaswamy , Murugan Natarajan , Laubscher Rudolf Frans 
Published: September 2019

Purpose
Friction stir processing (FSP) as a solid-state process has the potential for the production of effective aluminum matrix composites (AMCs). In this investigation, various ceramic particles including B4C, TiC, SiC, Al2O3 and WC were incorporated as the dispersed phase within AA6082 aluminum alloy by FSP. The wear rate of the composite is then investigated experimentally by making use of a design of experiments technique where wear rate is evaluated as the output parameter. The input parameters considered include tool rotational speed, traverse speed, groove width and ceramic particle type. An artificial neural network (ANN) simulation was then used to describe the wear rate of the surface composites. The weights of the network were adjusted to minimize the mean squared error using a feed forward back propagation technique. The effect of the individual input parameters on wear rate was then inferred from the ANN models. Trends are presented and related to the associated microstructures observed. The TiC infused AMC displayed the lowest wear rate whereas the Al2O3 infused AMC displayed the highest, within the scope of the current investigation. The paper aims to discuss these issues.

Design/methodology/approach
The paper used ANN for the research study.

Findings
The finding of this paper is that the wear rate of AA6063 aluminum surface composites is influenced remarkably by FSP parameters.

Originality/value
Original work of authors.
The compliant environment
Authors: Andrews Penny 
Published: September 2019

Purpose
The purpose of this paper is to present the concept of institutions as compliant environments, using data to monitor and enforce compliance with a range of external policies and initiatives, using the particular example of UK higher education (HE) institutions. The paper differs from previous studies by bringing together a range of policies and uses of data covering different areas of HE and demonstrating how they contribute to the common goal of compliance.

Design/methodology/approach
The compliant environment is defined in this context and the author has applied the preliminary model to a range of policies and cases that use and reuse data from staff and students in HE.

Findings
The findings show that the focus on compliance with these policies and initiatives has resulted in a high level of surveillance of staff and students and a lack of resistance towards policies that work against the goals of education and academia.

Research limitations/implications
This is the first study to bring together the range of areas in which policy compliance and data processing are entwined in HE. The study contributes to the academic literature on data and surveillance and on academic institutions as organisations.

Practical implications
The paper offers suggestions for resistance to compliance and data processing initiatives in HE.

Originality/value
This is the first study to bring together the range of areas in which policy compliance and data processing are entwined in HE. The study contributes to the academic literature on data and surveillance and on academic institutions as organisations.
Automatic identification and autonomous sorting of cylindrical parts in cluttered scene based on monocular vision 3D reconstruction
Authors: Wei Kun , Dai Yong , Ren Bingyin 
Published: September 2019

Purpose
This paper aims to propose an identification method based on monocular vision for cylindrical parts in cluttered scene, which solves the issue that iterative closest point (ICP) algorithm fails to obtain global optimal solution, as the deviation from scene point cloud to target CAD model is huge in nature.

Design/methodology/approach
The images of the parts are captured at three locations by a camera amounted on a robotic end effector to reconstruct initial scene point cloud. Color signatures of histogram of orientations (C-SHOT) local feature descriptors are extracted from the model and scene point cloud. Random sample consensus (RANSAC) algorithm is used to perform the first initial matching of point sets. Then, the second initial matching is conducted by proposed remote closest point (RCP) algorithm to make the model get close to the scene point cloud. Levenberg Marquardt (LM)-ICP is used to complete fine registration to obtain accurate pose estimation.

Findings
The experimental results in bolt-cluttered scene demonstrate that the accuracy of pose estimation obtained by the proposed method is higher than that obtained by two other methods. The position error is less than 0.92 mm and the orientation error is less than 0.86°. The average recognition rate is 96.67 per cent and the identification time of the single bolt does not exceed 3.5 s.

Practical implications
The presented approach can be applied or integrated into automatic sorting production lines in the factories.

Originality/value
The proposed method improves the efficiency and accuracy of the identification and classification of cylindrical parts using a robotic arm.
Obligate intracellular bacteria diversity in unfed Leptotrombidium scutellare larvae highlights novel bacterial endosymbionts of mites
Authors: Ogawa Motohiko , Takahashi Mamoru , Matsutani Minenosuke , Takada Nobuhiro , Noda Shinichi , Saijo Masayuki 
Published: September 2019

AbstractIt is well known that the mite Leptotrombidium scutellare carries the pathogen of scrub typhus, Orientia tsutsugamushi. However, our understanding of other bacterial endosymbionts of mites is limited. This study investigated the diversity of the obligate intracellular bacteria carried by L. scutellare using 16S rRNA gene amplicon analysis with next‐generation sequencing. The results showed that the detected bacteria were classified into the genera Rickettsia, Wolbachia, and Rickettsiella and an unknown genus of the order Rickettsiales. For further classification of the detected bacteria, a representative read that was most closely related to the assigned taxonomic classification was subjected to homology search and phylogenic analysis. The results showed that some bacteria of the genus Rickettsia were identical or very close to the human pathogens Rickettsia akari, Rickettsia aeschlimannii, Rickettsia felis, and Rickettsia australis. The genetic distance between the genus Wolbachia bacteria in the present study and in previous reports is highly indicative that the bacteria in the present study can be classified as a new taxon of Wolbachia. This study detected obligate intracellular bacteria from unfed mites; thus, the mites did not acquire bacteria from infected animals or any other infectious sources. Finally, the present study demonstrated that various and novel bacterial endosymbionts of mites, in addition to O. tsutsugamushi, might uniquely evolve with the host mites throughout overlapping generations of the mite life cycle. The roles of the bacteria in mites and their pathogenicity should be further examined in studies based on bacterial isolation.
Political Conflict over Time
Authors: Howell William , Krasa Stefan , Polborn Mattias 
Published: September 2019

AbstractWe study a model of electoral competition in which politicians must decide whether to initiate the provision of some public good and, afterward, how much of the public good to supply. The model illuminates how a project's implementation affects elections and, conversely, how electoral considerations influence decisions about implementation. Under well‐defined conditions, politicians will either implement projects that they do not like or delay projects that, absent electoral concerns, they would support. The model further reveals how the perceived benefits of holding office can impede the production of public goods about which there is broad consensus. And depending on facts about the program's structure and the electoral landscape, a policy's implementation can either mitigate or exacerbate political conflict.
When Preventing Absenteeism Fuels Long‐Sickness Leave: The Case of a Leading Operator for Local Transport Services
Authors: Askenazy Philippe , Cartron Damien 
Published: September 2019

AbstractWe examine the strategy to reduce sickness absences of transit drivers in one of the leading Multinational Operators for Local Transport Services in France. Absenteeism dramatically rose as a result of this strategy. Using observations and interviews at the corporate and field levels, and company data, we disentangle the mechanisms that led to this failure. In a context of strong constraints especially from local communities, the strategy based on underlining the costs of absences pushed local units to change their management practices. They focused on chasing short absences, promoted presenteeism and intensified pressure on workers rather than boosting prevention. Eventually, long‐duration sickness leaves massively expanded.
Can image‐enhanced endoscopy improve the diagnosis of Kyoto classification of gastritis in the clinical setting?
Authors: Dohi Osamu , Majima Atsushi , Naito Yuji , Yoshida Takuma , Ishida Tsugitaka , Azuma Yuka , Kitae Hiroaki , Matsumura Shinya , Mizuno Naoki , Yoshida Naohisa , Kamada Kazuhiro , Itoh Yoshito 
Published: September 2019

Endoscopic diagnosis of Helicobacter pylori (H. pylori) infection, the most common cause of gastric cancer, is very important to clarify high‐risk patients of gastric cancer for reducing morbidity and mortality of gastric cancer. Recently, the Kyoto classification of gastritis was developed based on the endoscopic characteristics of H. pylori infection‐associated gastritis for clarifying H. pylori infection status and evaluating risk factors of gastric cancer. Recently, magnifying endoscopy with narrow‐band imaging (NBI) has reported benefits of the accuracy and reproducibility of endoscopic diagnosis for H. pylori‐related premalignant lesions. In addition to NBI, various types of image‐enhanced endoscopies (IEEs) are available including autofluorescence imaging, blue laser imaging, and linked color imaging. This review focuses on understanding the clinical applications and the corresponding evidences shown to improve the diagnosis of gastritis based on Kyoto classification using currently available advanced technologies of IEEs.
The circular economy of agro and post‐consumer residues as raw materials for sustainable ceramics
Authors: Andreola Fernanda , Lancellotti Isabella , Manfredini Tiziano , Barbieri Luisa 
Published: September 2019

AbstractThe circular economy in the area of waste management implies their re‐use as a raw material in different production cycles. Both the qualitative and quantitative characteristics of the residues from the agro sector and those of the products of the ceramics sector make possible to think of a feasible application. This review will illustrate some examples of recycling of residues deriving from animal and vegetable sectors (and two post consume products, spent coffee grounds, and packaging glass cullet), studied by the authors, falling within the concept of urban and agricultural sustainable development. Not only the most traditional products such as glass‐ceramics, glazes, bricks, but also the most innovative lightweight aggregates for plant structures or in and out soil cultivation, as well as additives such as deflocculants for ceramic suspensions, which will be illustrated from the design/production, characterization, and comparison with commercial products.
Properties of hyoid muscle contraction during tongue lift measurement
Authors: Koshi Naomi , Magara Jin , Sakai Shogo , Tsujimura Takanori , Ono Kazuhiro , Inoue Makoto 
Published: September 2019

AbstractBackgroundTongue lift movement (TLM) task is considered a treatment strategy in dysphagic patients. However, there is no evidence of effect of sustained tongue movements on the related muscle contraction.ObjectivesThe present study aimed to characterise the properties and time‐dependent changes of the electromyographic (EMG) features of suprahyoid muscles during TLM.MethodsTwenty young healthy volunteers were instructed to perform TLM at maximum effort in either the anterior or the posterior position, during measurement of tongue pressure for 7 s. Supra‐ (S‐hyo) and infra‐hyoid (I‐hyo) EMGs were recorded. The area and power frequency of EMG burst and the area under the curve of tongue pressure were compared among the conditions: trials (1st, 2nd vs 3rd trials); anterior vs posterior TLM; and early vs late 3 s of each trial.ResultsThere was no difference in the tongue pressure among trials or between the early and late 3 s. Anterior tongue pressure was significantly higher than posterior tongue pressure (P < .001). The area of I‐hyo EMG burst was significantly larger (P = .044), and the power frequency of I‐hyo EMG burst was significantly smaller (P = .042) during posterior TLM than anterior TLM. A significant difference in the power frequency of both EMG bursts was observed between early and late stages during both anterior (P < .05) and posterior (P < .01) TLM.ConclusionHyoid muscles may compensate for rapid fatigue of the tongue muscle to maintain tongue pressure by changing their activity pattern during tongue pressure generation.
Differential introgression across newt hybrid zones: Evidence from replicated transects
Authors: Zieliński Piotr , Dudek Katarzyna , Arntzen Jan W. , Palomar Gemma , Niedzicka Marta , Fijarczyk Anna , Liana Marcin , Cogǎlniceanu Dan , Babik Wiesław 
Published: September 2019

AbstractGenomic heterogeneity of divergence between hybridizing species may reflect heterogeneity of introgression, but also processes unrelated to hybridization. Heterogeneous introgression and its repeatability can be directly tested in natural hybrid zones by examining multiple transects. Here, we studied hybrid zones between the European newtsLissotriton montandoniand two lineages ofLissotriton vulgaris, with replicate transects within each zone. Over 1,000 nuclear genes located on a linkage map and mitochondrial DNA were investigated using geographical and genomic clines. Overall, the five transects were all similar, showing hallmarks of strong reproductive isolation: bimodal distribution of genotypes in central populations and narrow allele frequency clines. However, the extent of introgression differed between the zones, possibly as a consequence of their different ages, as suggested by the analysis of heterozygosity runs in diagnostic markers. In three transects genomic signatures of small‐scale (~2 km) zone movements were detected. We found limited overlap of cline outliers between transects, and only weak evidence of stronger differentiation of introgression between zones than between transects within zones. Introgression was heterogeneous across linkage groups, with patterns of heterogeneity similar between transects and zones. Predefined candidates for increased or reduced introgression exhibited only a subtle tendency in the expected direction, suggesting that interspecific differentiation is not a reliable indicator for the strength of introgression. These hierarchically sampled hybrid zones of apparently different ages show how introgression unfolds with time and offer an excellent opportunity to dissect the dynamics of hybridization and architecture of reproductive isolation at advanced stages of speciation.
Stacks 2: Analytical methods for paired‐end sequencing improve RADseq‐based population genomics
Authors: Rochette Nicolas C. , Rivera‐Colón Angel G. , Catchen Julian M. 
Published: September 2019

AbstractFor half a century population genetics studies have put type II restriction endonucleases to work. Now, coupled with massively‐parallel, short‐read sequencing, the family of RAD protocols that wields these enzymes has generated vast genetic knowledge from the natural world. Here, we describe the first software natively capable of using paired‐end sequencing to derive short contigs from de novo RAD data. Stacks version 2 employs a de Bruijn graph assembler to build and connect contigs from forward and reverse reads for each de novo RAD locus, which it then uses as a reference for read alignments. The new architecture allows all the individuals in a metapopulation to be considered at the same time as each RAD locus is processed. This enables a Bayesian genotype caller to provide precise SNPs, and a robust algorithm to phase those SNPs into long haplotypes, generating RAD loci that are 400–800 bp in length. To prove its recall and precision, we tested the software with simulated data and compared reference‐aligned and de novo analyses of three empirical data sets. Our study shows that the latest version of Stacks is highly accurate and outperforms other software in assembling and genotyping paired‐end de novo data sets.
MUR1‐mediated cell‐wall fucosylation is required for freezing tolerance in Arabidopsis thaliana
Authors: Panter Paige E. , Kent Olivia , Dale Maeve , Smith Sarah J. , Skipsey Mark , Thorlby Glenn , Cummins Ian , Ramsay Nathan , Begum Rifat A. , Sanhueza Dayan , Fry Stephen C. , Knight Marc R. , Knight Heather 
Published: September 2019

Summary

Forward genetic screens play a key role in the identification of genes contributing to plant stress tolerance. Using a screen for freezing sensitivity, we have identified a novel freezing tolerance gene, SENSITIVE‐TO‐FREEZING8, in Arabidopsis thaliana.

We identified SFR8 using recombination‐based mapping and whole‐genome sequencing. As SFR8 was predicted to have an effect on cell wall composition, we used GC‐MS and polyacrylamide gel electrophoresis to measure cell‐wall fucose and boron (B)‐dependent dimerization of the cell‐wall pectic domain rhamnogalacturonan II (RGII) in planta. After treatments to promote borate‐bridging of RGII, we assessed freeze‐induced damage in wild‐type and sfr8 plants by measuring electrolyte leakage from freeze‐thawed leaf discs.

We mapped the sfr8 mutation to MUR1, a gene encoding the fucose biosynthetic enzyme GDP‐d‐mannose‐4,6‐dehydratase. sfr8 cell walls exhibited low cell‐wall fucose levels and reduced RGII bridging. Freezing sensitivity of sfr8 mutants was ameliorated by B supplementation, which can restore RGII dimerization. B transport mutants with reduced RGII dimerization were also freezing‐sensitive.

Our research identifies a role for the structure and composition of the plant primary cell wall in determining basal plant freezing tolerance and highlights the specific importance of fucosylation, most likely through its effect on the ability of RGII pectin to dimerize.
Modeling and Quantification of Acoustic Damping Induced by Vortex Shedding in Noncompact Thermoacoustic Systems
Authors: Hofmeister Thomas , Hummel Tobias , Schuermans Bruno , Sattelmayer Thomas 
Published: September 2019

Abstract
This paper presents a methodology to compute acoustic damping rates of transversal, high-frequency modes induced by vortex-shedding. The acoustic damping rate presents one key quantity for the assessment of the linear thermoacoustic stability of gas turbine combustors. State-of-the-art network models—as employed to calculate damping rates in low-frequency, longitudinal systems—cannot fulfill this task due to the acoustic noncompactness encountered in the high-frequency regime. Furthermore, it is yet unclear, whether direct eigensolutions of the linearized Euler equations (LEE), which capture the mechanism of vortex shedding, yield correct damping rate results constituted by the implicit presence of acoustic as well as hydrodynamic contributions in these solutions. The methodology's applicability to technically relevant systems is demonstrated by a validation test case using a lab-scale, swirl-stabilized combustion system.
A Numerical Study on Erosion Model Selection and Effect of Pump Type and Sand Characters in Electrical Submersible Pumps by Sandy Flow
Authors: Zhu Haiwen , Zhu Jianjun , Rutter Risa , Zhang Hong-Quan 
Published: September 2019

AbstractThe electrical submersible pump (ESP) is one of the most widely used artificial lift methods in the petroleum industry. Although not recommended to be used in sand production well, ESP is still applicable in high producing well with a minimal percentage of solid concentration. Besides, the temporarily produced fracture sand from the proppant backflow can also severely reduce ESP boosting ability in weeks or months. Therefore, it is crucial to study the wear in ESP stages under sandy flow condition. Various erosion equations and models were developed for different materials and affecting factors. However, the predictions of these erosion models in ESPs need to be evaluated to make a proper selection. Comparisons of wear patterns and erosion rates were conducted using the computational fluid dynamics (CFD) software ANSYS. In order to validate the simulation results, an experimental facility was designed and constructed to study the sand erosion process in an ESP. Stages were painted to obtain erosion patterns, and the weight loss was measured. Six erosion models were implemented in the simulations to select the most accurate one in predicting ESP erosion rates. Then, three ESPs, including two mixed-type pumps and one radial-type pump, were modeled to study the effect of pump types with the selected erosion model. Finally, the steady-state discrete phase model (DPM) erosion simulations were carried out to investigate particle density and size effects.