bluuebunny/crossref_metadata_2025_split huggingface dataset:
Understanding and motivating academic library employees: theoretical implications
Authors: Alajmi Bibi , Alasousi Hessah 
Published: August 2018

Purpose
The purpose of this paper is to examine the levels of motivation and needs satisfaction of academic library employees, adopting Maslow’s hierarchy of needs to examine individuals’ motivation.

Design/methodology/approach
The study collects and analyzes quantitative survey data. The research population comprises 108 employees working across eight college libraries at Kuwait University.

Findings
While participants generally agreed that their needs were being satisfied at each of the five levels of Maslow’s hierarchy, they reported higher levels of satisfaction of their self-actualization and social needs. Self-actualization is the summit of Maslow’s motivation theory representing the quest for reaching one’s full potential as a person.

Research limitations/implications
One limitation is the relatively small sample size due to Kuwait having only one public university. Future research could overcome this limitation by investigating both private and public universities.

Practical implications
This research contributes significantly and in various ways to understanding motivation in a library setting. It elucidates many aspects of Maslow’s hierarchy of needs theory criticized in previous literature. Overall, the study’s results should be useful to scholars in the library field interested in motivation, to academic librarians and to managers in academia.

Originality/value
Though many prior studies have focused on motivation in a library setting, Maslow’s theory has been little considered in the context of academic libraries. This study uses a theoretical framework based on Maslow’s hierarchy of needs to understand and explain the levels of motivation and needs satisfaction of academic library employees.
Competitive intensity and inefficiency in European container ports
Authors: Merkel Axel 
Published: August 2018

Purpose
The purpose of this paper is to empirically examine the relationship between intensity of competition and technical efficiency of large European container ports, accounting for regional diversities and spatial aspects of inter-port competition.

Design/methodology/approach
The analysis consists of applying a stochastic production frontier approach to a dataset of 77 large European container ports over the period 2002-2012, with inefficiency terms simultaneously modeled as a function of (among other factors) a constructed index of competitive intensity at different spatial levels.

Findings
The results indicate that there is no significant negative effect of competitive intensity on efficiency. In fact, for competing European ports within a proximity of 300 km, a higher level of competition is found to be associated with a higher level of technical efficiency.

Originality/value
The originality of the paper stems from its particular focus on European port regions and its novel findings in this context, which have implications for the discussions regarding pro-competitive port policy and regulation in the European Union.
Modification of poly (styrene-co-divinyl benzene) porous materials for peptides enrichment and separation
Authors: Liu Yi , Wang Hao , Liu Yongfeng , Shi Meng , Di Duolong 
Published: August 2018

Purpose
The purpose of this paper is to focus on the selection of the optimum porous material modified with poly-dopamine coating for peptides enrichment. The adsorption behaviors for peptides and the antioxidant capacity of peptides fraction purified by the porous materials were investigated.

Design/methodology/approach
The optimum porous material with the highest adsorption capacity for peptides was selected for surface modification. The surface modified porous material was characterized by SEM, nitrogen adsorption-desorption isotherm and color change.

Findings
The results showed that the porous material was successfully modified with poly-dopamine coating. Adsorption capacity for peptides of the modified porous material was enhanced compared to the original porous material. Antioxidant capacity of peptides fraction enriched by the modified porous material was much higher than that enriched by the original porous material, indicating that the introduction of poly-dopamine coating was inclined to enrich peptides with certain amino acid residues.

Research limitations/implications
The structures of peptides are a bit not clear, which is the subject of future investigation.

Practical implications
This contribution provides a method to design and prepare porous materials with poly-dopamine coating to separate and enrich peptides or peptides fraction with high antioxidant capacity.

Originality/value
It showed that polarity, surface area, pore diameter and interactions were contributed to high adsorption capacity. The peptides fraction purified by the modified porous material showed excellent antioxidant capacity through results of reduction of DPPH radical, because of the enrichment of the peptides with certain amino acids residues which were considered to enhance radical scavenging capacity. This paper provides new insights into designing and preparing porous materials with poly-dopamine coating to enrich peptides fraction with high antioxidant capacity.
Analysts’ forecasts and uncertainty about firm value
Authors: Andrews Angela , Sen Pradyot , Stephan Jens 
Published: August 2018

Purpose
The purpose of this study is to use implied volatilities from exchange traded options to examine the interaction between analysts’ forecast revisions and the market’s perception of uncertainty about firm value.

Design/methodology/approach
The authors examine how characteristics of individual forecast revisions, e.g. news and changes in dispersion of forecasts, affect changes in implied volatilities, whether analysts use the observable changes in implied volatilities to inform their forecast revisions and whether changes in dispersion of forecasts are correlated with changes in implied volatilities.

Findings
The authors find that good (bad) news forecast revisions reduce (increase) investors’ perception of uncertainty about firm value, analysts do not appear to use changes in implied volatilities to shade their forecast revisions to good/bad news and dispersion of forecasts are a reasonable proxy for uncertainty about firm value as indicated by their correlation with implied volatilities.

Originality/value
Recent research on analysts’ forecast revisions and management forecasts has focused on risk perception rather than value. This paper extends this work with a risk metric based on market transactions in both a short and long window analysis, as well as univariate and multivariate analysis.
Mechanical and microstructural properties of carbon nanotubes reinforced chromium oxide coated boiler steel
Authors: Goyal Khushdeep , Singh Hazoor , Bhatia Rakesh 
Published: August 2018

Purpose
The purpose of this study was to fabricate carbon nanotubes (CNT)-reinforced chromium oxide coatings and investigate mechanical and microstructural properties of these newly developed coatings on the boiler tube steel.

Design/methodology/approach
1 and 4 Wt.% CNT-reinforced Cr2O3 composite coatings were prepared and successfully deposited on ASTM-SA213-T22 (T22) boiler tube steel substrates using high-velocity oxy fuel (HVOF) thermal spraying method. Microhardness, porosity, metallography, X-ray diffraction (XRD), scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy, cross-sectional elemental analysis and X-ray mapping analysis have been used to examine the coated specimens.

Findings
The porosity of the CNT-Cr2O3 composite coatings was found to be decreasing with the increases in CNT content, and hardness has been found to be increasing with increase in percentage of CNT in the composite coatings. The CNT were able to increase hardness by approximately 17 per cent. It was found that the CNT were uniformly distributed throughout Cr2O3 matrix. The CNT were found to be chemically inert during the spraying process.

Originality/value
It must be mentioned here that studies related to fabrication of HVOF sprayed CNT reinforced Cr2O3 composite coatings on T22 boiler tube steel are not available in the literature. Hence, present investigation can provide valuable information related to fabrication and properties of CNT reinforced coatings on boiler steel.
Similarity solution and Runge Kutta method to a thermal boundary layer model at the entrance region of a circular tube
Authors: Belhocine Ali , Wan Omar Wan Zaidi 
Published: August 2018

Purpose
The purpose of this paper is to re-examine the assumptions implicit in Leveque’s approximation, and the variation of the temperature and the thickness of the boundary layer were illustrated using the developed solution. The analytical solutions are then checked against numerical solution programming by FORTRAN code obtained via using Runge–Kutta fourth-order (RK4) method. Finally, other important thermal results obtained from this analysis, such as approximate Nusselt number in the thermal entrance region, was discussed in detail. After that, the analytical results of the present paper are validated with certain previous investigations which were found in the specialized literature.

Design/methodology/approach
By defining a similarity variable, the governing equations are reduced to a dimensionless equation with an analytic solution in the entrance region. This paper gives justification for the similarity variable via scaling analysis, details the process of converting to a similarity form and presents a similarity solution. The calculation methodology for numerical resolution is based on the RK4 technique.

Findings
The profiles of the solutions are provided from which the authors infer that the numerical and exact solutions agreed very well. Another result that the authors obtained from this paper is the number of Nusselt in the thermal entrance region for which a parametric study was carried out and discussed well for the impact of scientific contribution.

Originality/value
The novelty of this paper is the application of the RK4 with a step size control, as a sequential numerical method of a ODEs system compared with the exact similarity solution of the thermal boundary layer problem.
Harmonic reduction using a novel multipulse AC-DC converter
Authors: Abdollahi Rohollah 
Published: August 2018

Purpose
For direct torque controlled induction motor drives, an effective solution to eliminate harmonics is the use of multipulse alternating current (AC)-direct current (DC) converters. Many researchers have used different configurations based on 24- and 30-pulse rectifications for improved power quality. However, the total harmonic distortion (THD) of AC mains current with these topology is more than 4 per cent when operating at a light load. For mitigating the THD problems observed in the input currents, Abdollahi propose 40-, 72- and 88-pulse AC-DC converters, while the power quality enhancement was the main concern. It is known that by increasing the number of pulses further results in reduction in current harmonics, but this is accompanied by an increase in cost and complexity. In this context, the purpose of this paper is to design a new delta/hexagon transformer based 36-pulse AC-DC converter for harmonic reduction without increasing the cost and complexity.

Design/methodology/approach
The proposed converter consists of two paralleled 18-pulse AC-DC converters involving a nine-phase shifted uncontrolled diode bridges with an interphase transformer circuit.

Findings
In this paper, the proposed scheme is simulated by matrix laboratory (MATLAB)/SIMULINK considering different loading scenarios. The simulation results show that the proposed scheme improves the power quality indices and satisfies the The Institute of Electrical and Electronics Engineers (IEEE)-519 requirements at the point of common coupling. Also, a laboratory prototype is implemented using the proposed design, and the experimental results confirm the simulation results under different loading conditions.

Originality/value
The proposed solution is a tradeoff among the pulse number, the transformer platform, the complexity of the scheme and the cost. The proposed scheme has an optimized configuration in this regard.
Trigeminal nerve injuries
Authors: Renton Tara 
Published: August 2018

AbstractTrigeminal nerve injury is the most problematic consequence of dental surgical procedures with major medico‐legal implications. In trigeminal nerve injuries related to dentistry, 70% are reported to have chronic neuropathic post‐traumatic pain. Neuropathic pain states require different therapeutic approaches such as anticonvulsants, which are not effective in nociceptive pain. Major causes of nerve injuries in the orofacial region are endodontics and administration of local anaesthetics. Endodontic treatment of premolar and mandibular teeth has the potential to damage the inferior alveolar nerve via direct trauma, pressure or neurotoxicity. Persistent pain after endodontics has been reported to occur in 3–13% of patients, whilst surgical endodontics resulted in chronic neuropathic pain in 5% of patients. Most sensory nerve injuries related to dentistry are permanent; only local anaesthetic nerve injuries have a 75% likelihood of recovery. Nerve injury from local anaesthetics shows an incidence of 1 in 14 000 with 25% permanent injury from general dental restorative procedures and 1 in 3300 with 29% permanence from oral surgery.
Typicality and Graded Membership in Dimensional Adjectives
Authors: Verheyen Steven , Égré Paul 
Published: August 2018

AbstractThis paper concerns an investigation of the manner in which typicality constrains graded membership in antonymous dimensional adjectives such as short/tall and cheap/expensive using the conceptual spaces framework. In this framework, items are organized in a space comprised of one or more dimensions along which they can be compared. The items’ graded membership is established by their relative proximity in this space to the prototypical instances of contrasting concepts. Because dimensional adjectives can be applied to an indefinite variety of things and grammatically have no upper bound to serve as cognitive reference point, they have been argued to lack prototypes. We present the results of an empirical study showing that the conceptual spaces framework can nevertheless be extended successfully to dimensional adjectives by complementing them with a comparison class argument (such as short/tall for an adult man and cheap/expensive for a smartphone), allowing participants to retrieve meaningful prototypical instances, which can be used to establish membership degree. Since dimensional adjectives are subjective, we investigate how the framework can accommodate interindividual variability in membership degree judgments. We find that the predictions of the framework significantly improve if prototypical instances themselves are assumed to come with a gradient instead of being considered equally typical, thereby providing a more fine‐grained account of typicality and furthering the development of the conceptual spaces framework.
Inequality Indices as Tests of Fairness
Authors: Kanbur Ravi , Snell Andy 
Published: August 2018

AbstractInequality indices are traditionally interpreted as measures of deviations from equality. This article interprets them instead as statistical tests for a null of fairness within well-defined income generating processes. We find that the likelihood ratio (LR) test for fairness versus unfairness within two such processes are proportional to Theil’s first and second inequality indices respectively. The LR values may be used either as a test statistic or to approximate a Bayes factor that measures the posterior probabilities of the fair version of the processes over that of the unfair. We also apply this perspective to measurement of inequality of opportunity.
Liver stiffness measured by transient elastography as predictor of prognoses following portosystemic shunt occlusion
Authors: Ishikawa Tsuyoshi , Sasaki Ryo , Nishimura Tatsuro , Matsuda Takashi , Maeda Masaki , Iwamoto Takuya , Saeki Issei , Hidaka Isao , Takami Taro , Sakaida Isao 
Published: August 2018

AbstractBackground and AimThis study aimed to identify predictors of model for end‐stage liver disease sodium score reductions and improvements in vital prognoses following portosystemic shunt occlusion in portal hypertension patients.MethodsSeventy cirrhotic patients with major portosystemic shunts and a mean model for end‐stage liver disease sodium score of 10.5 underwent balloon‐occluded retrograde transvenous obliteration between February 2008 and March 2017. We calculated the scores before and 1 month after shunt occlusion. The long‐term outcomes were monitored, and vital prognoses were analyzed.ResultsThe model for end‐stage liver disease sodium score did not change significantly 1 month post‐balloon‐occluded retrograde transvenous obliteration, and the score decreased postoperatively in 31 (44.3%) patients. Univariate analyses showed that decline in the score after portosystemic shunt occlusion was strongly associated with hepatic encephalopathy as a procedural indication, lower liver volumes, and lower liver stiffness levels measured by transient elastography before treatment (P < 0.05). Multivariate logistic regression analysis identified preoperative liver stiffness level as an independent predictor of model for end‐stage liver disease sodium score amelioration following balloon‐occluded retrograde transvenous obliteration (P < 0.05), and receiver operating characteristic curve analysis determined a liver stiffness cutoff value of 21.6 kPa, with a sensitivity of 76.0% and specificity of 69.6%. The Kaplan–Meier method determined that overall survival rates after treatment in patients with liver stiffness < 21.6 kPa were significantly higher than in patients with liver stiffness ≥ 21.6 kPa (P < 0.05).ConclusionsLiver stiffness measured by transient elastography may predict improvements in model for end‐stage liver disease sodium scores and in survival rates after portosystemic shunt occlusion in portal hypertension patients.
In vivo mechanical characterization of human facial skin combining curved surface imaging and indentation techniques
Authors: Dai Anna , Wang Shibin , Zhou Lei , Wei Huixin , Wang Zhiyong , He Wei 
Published: August 2018

AbstractBackgroundThe mechanical properties of human facial skin are of considerable importance for clinical research and cosmetic industry. As a result of their susceptibility to the individual difference and complex surroundings of human beings, the in vivo mechanical characterization by objective and quantitative devices is challenging.MethodsIn this study, an experimental setup was custom‐designed for the mechanical characterization combining curved surface optical imaging and indentation techniques. By means of an independently developed transparent indenter, the contact area and topography of facial skin can be in vivo and in situ captured in real time. Especially, the perpendicularity between indenter and facial skin can be adjusted and guaranteed by imaging analyses.ResultsA modified formula for the contact area calculation of silica gel, one of the most common materials used to simulate human facial skin, has been proposed. The highly improved agreement with the indentation tests shows its reliability and better applicability compared to the classical Hertz theory. Furthermore, we perform the in vivo indentation tests on human facial skin to evaluate the Young's modulus, which shows a potential for better understanding of their mechanical properties.ConclusionThe device presented could give convincing results. The in vivo mechanical properties of human facial skin obtained by our modified formula agree well with open literature, and a better reliability than classical Hertz theory is evidenced.
Tratamiento de distonía con estimulación cerebral profunda
Authors: Acevedo González Juan Carlos , Salazar Lina Marcela 
Published: August 2018

El objetivo de este artículo es revisar la importancia de la estimulación cerebralprofunda (ECP) en el tratamiento de la distonía. Se tiene en cuenta la población que debe ser llevada a cirugía, la estructura cerebral que debe estimularse, los resultados esperados en la mejoría de la sintomatología, así como los riesgos a los cuales se expone el paciente. Para lo anterior se realizó una búsqueda no sistematizada en las bases de datos Pubmed y Medline. La distonía es un problema médico importante, aunque con poca prevalencia en la población general. Es una enfermedad que puede tener un origen primario o secundario, afecta la movilidad del paciente y produce deterioro significativo de la calidad de vida. El objetivo de esta revisión es evaluar la efectividad de la estimulación cerebral en el tratamiento de la distonía.
Complete Genome Sequences of Three Campylobacter jejuni Phage-Propagating Strains
Authors: Sacher J. C. , Yee E. , Szymanski C. M. , Miller W. G. 
Published: August 2018

ABSTRACT

Bacteriophage therapy can potentially reduce
Campylobacter jejuni
numbers in livestock, but it requires a detailed understanding of phage-host interactions.
C. jejuni
strains readily infected by certain phages are designated as phage-propagating strains. Here, we report the complete genome sequences of three such strains, NCTC 12660, NCTC 12661, and NCTC 12664.
Genome Sequence of a Canadian Vibrio parahaemolyticus Isolate with Unique Mobilizing Capacity
Authors: Bioteau Audrey , Huguet Kévin , Burrus Vincent , Banerjee Swapan 
Published: August 2018

ABSTRACT

Vibrio parahaemolyticus
is a clinically significant marine bacterium implicated in gastroenteritis among consumers of raw or undercooked seafood. This report presents the whole-genome sequence of a unique strain of
V. parahaemolyticus
isolated from oysters harvested in Canada.
Reovirus σNS and μNS Proteins Remodel the Endoplasmic Reticulum to Build Replication Neo-Organelles
Authors: Tenorio Raquel , Fernández de Castro Isabel , Knowlton Jonathan J. , Zamora Paula F. , Lee Christopher H. , Mainou Bernardo A. , Dermody Terence S. , Risco Cristina 
Published: August 2018

ABSTRACT
Like most viruses that replicate in the cytoplasm, mammalian reoviruses assemble membranous neo-organelles called inclusions that serve as sites of viral genome replication and particle morphogenesis. Viral inclusion formation is essential for viral infection, but how these organelles form is not well understood. We investigated the biogenesis of reovirus inclusions. Correlative light and electron microscopy showed that endoplasmic reticulum (ER) membranes are in contact with nascent inclusions, which form by collections of membranous tubules and vesicles as revealed by electron tomography. ER markers and newly synthesized viral RNA are detected in inclusion internal membranes. Live-cell imaging showed that early in infection, the ER is transformed into thin cisternae that fragment into small tubules and vesicles. We discovered that ER tubulation and vesiculation are mediated by the reovirus σNS and μNS proteins, respectively. Our results enhance an understanding of how viruses remodel cellular compartments to build functional replication organelles.

IMPORTANCE
Viruses modify cellular structures to build replication organelles. These organelles serve as sites of viral genome replication and particle morphogenesis and are essential for viral infection. However, how these organelles are constructed is not well understood. We found that the replication organelles of mammalian reoviruses are formed by collections of membranous tubules and vesicles derived from extensive remodeling of the peripheral endoplasmic reticulum (ER). We also observed that ER tubulation and vesiculation are triggered by the reovirus σNS and μNS proteins, respectively. Our results enhance an understanding of how viruses remodel cellular compartments to build functional replication organelles and provide functions for two enigmatic reovirus replication proteins. Most importantly, this research uncovers a new mechanism by which viruses form factories for particle assembly.