bluuebunny/crossref_metadata_2025_split huggingface dataset:
Abusive supervision and knowledge hiding: the mediating role of psychological contract violation and supervisor directed aggression
Authors: Pradhan Sajeet , Srivastava Aman , Mishra Dharmesh K. 
Published: December 2019

PurposeThe purpose of this study is to test the relationship between abusive supervision and employee’s knowledge hiding behaviour among Indian information technology (IT) employees. The paper also strives to theoretically discuss and then seek empirical evidence to the two mediational paths (namely, psychological contract violation and supervisor directed aggression) that explain the focal relationship between abusive supervision and knowledge hiding.Design/methodology/approachTo test the proposed hypotheses, the study draws cross-sectional data from Indian IT employees working in various IT firms in India. Data were collected at two time points (T1 and T2) separated by one month to counter the priming effect and neutralize any threat of common method bias. The final sample of 270 valid and complete responses was analysed using SmartPLS 3 to test the hypotheses.FindingsResults showed that abusive supervision is positively related to employee’s knowledge hiding behaviours. Also, both psychological contract violation and supervisor directed aggression partially mediates the abusive supervision-knowledge hiding behaviour linkage.Originality/valueFirst, the current study has tested the positive relationship between abusive supervision and knowledge hiding behaviours unlike most of the previous investigations that have focussed on knowledge sharing behaviour (the two are different constructs having different antecedents). Second, the study also empirically investigated the two parallel mediational routes, namely, psychological contract violation and supervisor directed aggression that explains the blame attributed by the beleaguered employee that led to covert retaliatory behaviour, such as knowledge hiding.
From LBDQXII to LBDQ50: preferred leader behavior measurement across cultures
Authors: Warner-Soderholm Gillian , Minelgaite Inga , Littrell Romie Frederick 
Published: December 2019

Purpose
The purpose of this paper is to refine and validate the most widely used leader behavior measurement instrument, LBDQXII, into a more parsimonious instrument for assessing cognitive templates of preferred leader behavior across cultures.

Design/methodology/approach
The 100-item LBDQXII survey was administered to 6,451 participants from 14 countries; these data were used to refine the survey.

Findings
The shorter survey instrument is a valid and reliable tool for assessing preferred leader behavior. Four periods in the LBDQXII “evolution” are identified: emergence, expansion, stagnation and revival.

Research limitations/implications
The new LBDQ50 can be used to collect data across cultures, contributing to both global management development and scholarly studies.

Practical implications
This project corresponds to calls to shorten the well-established leader behavior instrument into a measurement tool that is reliable and valid across cultures and languages. This can be administered by both private and public organizations, contributing to greater effectiveness. Furthermore, it retains its scholarly scope encompassing follower-centric studies of leadership.

Social implications
Leadership processes are found in all aspects of life and can be better understood and improved within and across cultures using the shorter version.

Originality/value
An efficient instrument to measure preferred leadership behavior across and within cultures. The availability of the LBDQ50 will allow practitioners and researchers to advance understanding of preferred leadership behavior as a predictor of organizational effectiveness. Most such instruments are overly-long, which hinders data collection opportunities. This newly developed instrument can lead to better response rates and easier applicability in organizational settings.
Local tourist accommodation and institutional strengthening in the interior of the Algarve, Portugal
Authors: Machado Virgílio , Contreiras Joaquim , Duarte Ana Patrícia 
Published: December 2019

PurposeThis study aims to understand how legislation and technology can enhance socio-economic development in low-density population territories, focusing specifically on the dynamics of local tourist accommodation over the past decade.Design/methodology/approachA case study was conducted for five municipalities in one of the most significant tourism regions of Portugal – the Algarve – based on a systematic investigation of relevant laws, regulations and electronic platforms. Official statistics were compiled and analyzed for the five territories’ registered local accommodation services, population, overnight stays and additional local services.FindingsThe results reveal that public entities’ regulations favor micro-entrepreneurship initiatives in local accommodation and that digital tools supported by online platforms have quite visible effects on low-density territories. The findings also reveal that the local tourist accommodation supply has experienced an especially dynamic, sustained growth over the past decade. This expansion has been accompanied by an increased supply of other services, suggesting that accommodation can positively influence the existing and/or future socio-economic development of low-density territories.Research limitations/implicationsFurther studies focusing on other areas with low-density populations are needed to determine more clearly how local accommodation influences socio-economic development.Practical implicationsPublic regulations supported by digital platforms that favor micro-entrepreneurship initiatives in local accommodation can strengthen local development.Originality/valueTo the best of the authors’ knowledge, this study is the first to analyze how local tourist accommodation can foster socio-economic development in low-density territories.
Assessment of mechanical and fire resistance for hybrid nano-clay and steel fibres concrete at different curing ages
Authors: Shalby Ola Bakr , Elkady Hala Mohamed , Nasr Elsayed Abdel Raouf , Kohail Mohamed 
Published: December 2019

Purpose
Nano-Clay (NC) is reported as a candidate partial replacement for cement, due to its abundance and relatively low cost - beside reported promotion of different concrete properties. On the other hand, Steel Fibres (SF) has proven to have a positive effect on post fire exposure residual strength of concrete. This paper aims to present the outcomes of a comprehensive research program assessing a hybrid mix between NC and SF in concrete mixtures (NCSF-CRETE).

Design/methodology/approach
Physical chemical and physical characterization of NC is performed using different tools as XRF spectrometer, and TEM micrograph. Fresh concrete properties of NSCF-CRETE as slump and air content are investigated. Enhancement in permeability using NSCF is verified by comparing its resistance to the penetration of chlorides resistance with regular concrete mix. Besides, the proposed NCSF-CRETE compressive strength is evaluated compared to mixes with NC and SF each used separately at different curing ages. Besides, NSCF and compared mixes are exposed to an indirect fire testing program – two hours exposure – for: 300, 450 and 600°C. Degradation in compressive strength was investigated after exposure to different temperatures and percentage of residual strength is reported.

Findings
Results indicated an improved performance of NCSF -CRETE of about 40% compared to regular concrete in compressive strength at normal conditions. This improvement extended to its behavior when subjected to indirect fire exposure NSCF also maintained 40% more strength than the residual in regular concrete mix – which suffered severe damage – after 2 h exposure to 600°C.

Originality/value
Using NCSF-Crete allows retrofitting the structure after exposure to such drastic conditions.
How trainee hospital doctors lead work-based projects
Authors: Snelling Iain , Benson Lawrence Adrian , Chambers Naomi 
Published: December 2019

PurposeThe purpose of this study is to explore how trainee hospital doctors led work-based projects undertaken on an accredited development programme in England.Design/methodology/approachThis is a case study of a leadership programme for hospital-based specialty trainees. The programme included participants leading work-based projects which were submitted for academic accreditation. Accounts of 35 work-based projects were thematically analysed to explore how participants led their projects.FindingsLeadership was often informal and based on a series of individual face-to-face conversations. The establishment of project teams and the use of existing communication processes were often avoided. The reasons for this approach included lack of opportunities to arrange meetings, fear of conflict in meetings and the personal preferences of the participants. The authors discuss these findings with reference to theory and evidence about conversations and informal leadership, highlighting the relevance of complexity theory.Research limitations/implicationsThe data are limited and drawn from the best accounts written for a specific educational context. There is therefore limited transferability to the leadership work of hospital-based specialty trainees in general. Future research into medical leadership might explore the micro practices of leadership and change, particularly in informal settings.Practical implicationsLeadership development programmes for trainee hospital doctors might concentrate on developing skills of conversation, particularly where there are or may be perceived power imbalances. Exploring conversations within the theory of complex responsive processes should be considered for inclusion in programmes.Originality/valueThis paper adds some detail to the general understanding of learning leadership in practice.
An algorithmic approach to the multiple impact of a disk in a corner
Authors: Fassino Claudia , Pasquero Stefano 
Published: December 2019

Purpose
The purpose of this paper is to present and analyze the iterative rules determining the impulsive behavior of a rigid disk having a single or possibly multiple frictionless impact with two walls forming a corner.

Design/methodology/approach
In the first part, two theoretical iterative rules are presented for the cases of ideal impact and Newtonian frictionless impact with global dissipation index. In the second part, a numerical version of both the theoretical algorithms is presented.

Findings
The termination analysis of the algorithms differentiates the two cases: in the ideal case, it is shown that the algorithm always terminates and the disk exits from the corner after a finite number of steps independently of the initial impact velocity of the disk and the angle formed by the walls; in the non-idealcase, although is not proved that the disk exits from the corner in a finite number of steps, it is shown that its velocity decreases to zero, so that the termination of the algorithm can be fixed through an “almost at rest” condition. It is shown that the stable version of the algorithm is more robust than the theoretical ones with respect to noisy initial data and floating point arithmetic computation. The outputs of the stable and theoretical versions of the algorithms are compared, showing that they are similar, even if not coincident, outputs. Moreover, the outputs of the stable version of the algorithm in some meaningful cases are graphically presented and discussed.

Originality/value
The paper clarifies the applicability of theoretical methods presented in Pasquero (2018) by analyzing the paradigmatic case of the disk in the corner.
Optimization of lupine (Lupinus albus L.) composition, feed moisture content and barrel temperatures for best quality maize based extruded snack food
Authors: Adem Muhammed , J.A. Sadik , Worku Admasu , Neela Satheesh 
Published: December 2019

PurposeThis paper aims to optimize feed moisture contents, barrel temperatures, blending ratios of maize and lupine for processing of protein-rich best quality extruded product using a twin-screw extruder.Design/methodology/approachA three-factor three-level response surface methodology by Box-Behnken Design was applied to evaluate the effect of selected processing conditions of blending ratios of lupine (10-20 per cent), barrel temperatures (120°C-150°C) and feed moisture content (14-18 per cent) on functional, nutritional and sensory characteristics of produced snack food.FindingsThe results of functional properties such as radial expansion ratio, bulk density, water absorption index, water solubility index observed as 0.71-1.2, 0.33-0.92 g/cc, 4.4-6.4 per cent and 10.2-15.1 per cent, respectively. The snack food showed the moisture 5.6-7.2 per cent, protein 8.1-18.1 per cent, fiber 1.6-2.7 per cent, ash 1.6-2.2 per cent and carbohydrate 64.8-81.4 per cent. The independent variables (lupine blending ratio, barrel temperature and feed moisture content) posed significant effects on expansion ration (p= 0.0030), bulk density (p= 0.0026), water absorption index (p= 0.0075) and water-solubility index (p= 0.0116). Higher blending ratio of lupine was increase in the bulk density and water solubility index, but decrease in expansion ratio and water absorption index of snack food. Higher feed moisture content was led to a reduction in expansion ratio and water-soluble index of snack food. Whereas, higher feed moisture contents was lead to rise in bulk density and water absorption index. Fiber (p= 0.0145), ash (p= 0.0343) and carbohydrate (p= 0.0001) contents were significantly depended on blending ratio. Blending of lupine 15.06 per cent, barrel temperature of 150 °C and feed moisture content of 14.0 per cent produced the snack food with desirability value of 72.8 per cent.Originality/valueProtein malnutrition is one of the major problems in child development in under developed countries including Ethiopia. Maize is a top producer in the country but least appreciated for cost. Lupine is one of the undervalued produce consumed in Ethiopia after boiling. Still data on the utilization of maize and lupine in the extruded snack preparation was very limited. Optimization of moisture and barrel temperatures for this snack was not reported clearly yet.
Removal of acetaminophen (ACT) from aqueous solution by using nanosilica adsorbent: experimental study, kinetic and isotherm modeling
Authors: Eslami Akbar , Goodarzvand Chegini Zahra , Khashij Maryam , Mehralian Mohammad , Hashemi Marjan 
Published: December 2019

Purpose
A nanosilica adsorbent was prepared and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and BET.

Design/methodology/approach
The optimum conditions for the highest adsorption performance were determined by kinetic modeling. The adsorbent was used for the adsorption of acetaminophen (ACT), and the parameters affecting the adsorption were discussed like pH, initial concentration, contact time and adsorbent dosage. The adsorbent have been characterized by SEM, XRD and BET analysis. The kinetic models including pseudo-first-order and pseudo-second-order with Langmuir and Freundlich isotherm models were applied to investigate the kinetic and isotherms parameters.

Findings
The adsorption of ACT increased to around 95% with the increase of nanosilica concentration to 30 g/L. Moreover, the adsorption process of ACT follows the pseudo-second-order kinetics and the Langmuir isotherm with the maximum adsorption capacity of 609 mg/g.

Practical implications
This study provided a simple and effective way to prepare of nanoadsorbents. This way was conductive to protect environmental and subsequent application for removal of emerging pollutants from aqueous solutions.

Originality/value
The novelty of the study is synthesizing the morphological and structural properties of nanosilica-based adsorbent (specific surface area, pore volume and size, shape and capability) and improving its removal rate through optimizing the synthesis method; and studying the capability of synthesis of nanosilica-based adsorbent for removal of ACT as a main emerging pharmaceutical water contaminant.
Are universities left‐wing bastions? The political orientation of professors, professionals, and managers in Europe
Authors: van de Werfhorst Herman G. 
Published: December 2019

AbstractUniversities are accused of being left‐wing bastions, unwelcoming to conservative and right‐wing professors. However, we know little about the political orientation of professors in comparison to other professionals, which would be the right comparison group if we want to know whether universities are potentially hostile environments to conservatives. Examining culturally and economically oriented political orientations in Europe, it is demonstrated that professors are more liberal and left‐leaning than other professionals. However, there is no greater homogeneity of political orientations among the professoriate relative to other specific professions, suggesting that there is a diversity of opinions which is similar to what professionals would find in other occupations. One exception concerns attitudes towards immigration, on which professors have more liberal orientations and comparatively low residual variance around that more liberal mean. Importantly, the difference between professors and other professionals is not so clear within graduates from the social sciences, but emerges more clearly among graduates with a medical, STEM, economics or law degree. An important political cleavage exists between professionals and managers, a group of similar social standing.
A Pilot Study on the Diagnosis of Fatal Electrocution by the Detection of Myocardial Microhemorrhages
Authors: Gentile Guendalina , Andreola Salvatore , Bailo Paolo , Boracchi Michele , Fociani Paolo , Piccinini Andrea , Zoja Riccardo 
Published: December 2019

AbstractIn electrocutions, death may be caused by alterations in the heart conduction system provoking ventricular fibrillation. This study aims to identify histological cardiac markers of high‐ and low‐voltage electrocution. Two groups of decedents were evaluated: group A included 14 fatalities caused by high‐ or low‐voltage electrocution and group B (control) included 14 fatalities due to other traumatic or disease causes. Myocardial sampling with microscopic examination was performed on all the hearts using the hematoxylin and eosin and Masson's trichrome stains to investigate morphological characteristics that could indicate the damage caused by high‐ and low‐voltage electrocutions. Interstitial myocardial hemorrhagic infiltration was the only differentiating finding, which was shown only in high‐voltage electrocution. This pathological finding has not been previously reported, and it may be specific to high‐voltage electrocution deaths. Further studies are warranted.
Genome of an iconic Australian bird: High‐quality assembly and linkage map of the superb fairy‐wren (Malurus cyaneus)
Authors: Peñalba Joshua V. , Deng Yuan , Fang Qi , Joseph Leo , Moritz Craig , Cockburn Andrew 
Published: December 2019

AbstractThe superb fairy‐wren, Malurus cyaneus, is one of the most iconic Australian passerine species. This species belongs to an endemic Australasian clade, Meliphagides, which diversified early in the evolution of the oscine passerines. Today, the oscine passerines comprise almost half of all avian species diversity. Despite the rapid increase of available bird genome assemblies, this part of the avian tree has not yet been represented by a high‐quality reference. To rectify that, we present the first high‐quality genome assembly of a Meliphagides representative: the superb fairy‐wren. We combined Illumina shotgun and mate‐pair sequences, PacBio long‐reads, and a genetic linkage map from an intensively sampled pedigree of a wild population to generate this genome assembly. Of the final assembled 1.07‐Gb genome, 975 Mb (90.4%) was anchored onto 25 pseudochromosomes resulting in a final superscaffold N50 of 68.11 Mb. This high‐quality bird genome assembly is one of only a handful which is also accompanied by a genetic map and recombination landscape. In comparison to other pedigree‐based bird genetic maps, we find that the fairy‐wren genetic map more closely resembles those of Taeniopygia guttata and Parus major maps, unlike the Ficedula albicollis map which more closely resembles that of Gallus gallus. Lastly, we also provide a predictive gene and repeat annotation of the genome assembly. This new high‐quality, annotated genome assembly will be an invaluable resource not only regarding the superb fairy‐wren species and relatives but also broadly across the avian tree by providing a novel reference point for comparative genomic analyses.
Integrated analysis identifies DUSP5 as a novel prognostic indicator for thyroid follicular carcinoma
Authors: Zhang Qian , Xing Yiqian , Jiang Shan , Xu Chunmei , Zhou Xiaojun , Zhang Rui , Xie Tianyue , Zou Zhiwei , Gong Piyun , Zhu Huangao , Zhang Dongmei , Ma Huimei , Liao Lin , Dong Jianjun 
Published: December 2019

BackgroundDifferentiated thyroid cancer involves thyroid follicular carcinoma (FTC) and papillary thyroid carcinoma (PTC). Patients with FTC have a worse prognosis than those with PTC for early metastasis through blood of FTC. However, the mechanism of poor prognosis of FTC is still unclear. Here, we aim to evaluate the role of DUSP5 in the prognostic evaluation of FTC.MethodWe searched the Gene Expression Omnibus (GEO) database for the differentially expressed genes (DEGs) between FTC and PTC, and then combined with survival analysis of cBioPortal database to locate the gene significantly related to prognosis. Tissue microarrays and clinical tissues were used to examine DUSP5 expression by immunohistochemical (IHC) staining between FTC and PTC tissues. In vitro experiment, proliferation, migration and invasion of FTC were observed after regulation of DUSP5 by transfection of siRNA and plasmids, respectively.ResultsAfter searching the GEO database, 26 DEGs were found. DUSP5 was significantly associated with prognosis of FTC in combination with survival analysis. Data of IHC staining showed lower expression of DUSP5 in FTC compared to PTC tissues. Furthermore, overexpression of DUSP5 inhibited the proliferation, migration and invasion accompanied with low level of MMP9 and Vimentin and high level of E‐cadherin. Nevertheless, inhibition of DUSP5 ameliorated above damaging effect on the proliferation, migration and invasion.ConclusionDUSP5 was differentially expressed in FTC and PTC tissues. Low level of DUSP5 in FTC participates in the high frequency of metastasis, and further contributes to poor prognosis of FTC. DUSP5 could be served as a novel therapeutic target for FTC.
Does social trust restrain firm financing violations? Evidence from China
Authors: Qiu Baoyin , Yu Junli , Chan Kam C. 
Published: December 2019

AbstractWe use a sample of Chinese firms to examine the impact of social trust, as an informal institution, on firm financing violations. Our findings suggest that when a firm is located in a region with high social trust, it commits fewer financing violations than those committed by firms in a region of low social trust. The results are robust for alternative measures of financing violations (fraudulent activities when issuing new shares, changing the use of new funds to uses other than the stipulated purposes, or illegally using third‐party loan guarantees), social trust, and after using instrumental variables estimation to account for endogeneity. Additional analysis suggests that the impact of social trust on restraining financing violations is more pronounced for firms having lower interest costs, facing low industry competition, located in high marketisation regions, and having good internal control. The findings show that the impact of social trust on financing violations is moderated by the economic reality of the firm (interest costs and competition), the formal institutional environment (level of marketisation), and the internal governance of a firm (internal control).