bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence of HIV-1 infection among foreign applicant to residency in Shanghai, China, 2005-2016
Authors: Qin Jia , Zhou Ru , Xia Jing , Wang Weixin , Pan Jun , Pan Jiahong , Zhou Xuan , Zhang Qi 
Published: February 2019

AbstractBackgroundShanghai is one of the biggest cities which have the highest number of entry travelers from all over the world. The HIV(human immunodeficiency virus) infection status of this population can reflect global trends of HIV prevalence to a certain extent.MethodsA retrospective cohort study was conducted to reveal the prevalence and characteristics of HIV-1 infection among entry travelers who applied to residency in Shanghai. The HIV-1 infection rate was estimated based on the detection of HIV-1 antibody.ResultsAmong 50830 entry travelers who applied to residency in Shanghai(2005-2016), 245 were determined HIV-1 positive with an infection rate of 0.48%. The detection rate of HIV was significantly higher in male (P<0.0001). Those aged 18-30 years, 31-40 years and >40years accounted for 34.3%,39.6% and 26.1% respectively of the infected population. Although there was no trend of increase in HIV-1 prevalence rates (Cochran-Armitage Z =2.543, P =0.111),proportions of individuals infected through homosexual transmission increased over the study period (Cochran-Armitage Z =5.41, P<0.001), while the proportions infected through heterosexual(Cochran-Armitage Z=3.38, P=0.001).ConclusionThe rate and characteristics of HIV-1 infection among foreign applicant to residency in Shanghai were revealed in the study. The results could provide the necessary epidemiological data for monitoring the HIV-1 epidemic among entry international travelers and to further contribute to the establishment of relevant policies and regulations for HIV control and prevention.
Contrasting perspectives – practitioner’s viewpoint on personalised marketing communication
Authors: Strycharz Joanna , van Noort Guda , Helberger Natali , Smit Edith 
Published: February 2019

Purpose The purpose of this paper is to provide insights into personalisation from a practitioner’s perspective to bridge the practitioner-academia gap and steer the research agenda. A wide scope of research has investigated personalisation from a consumer perspective. The current study aims at bridging the consumer and practitioner perspective by entering into a dialogue about the practical application of personalisation. It takes the personalisation process model by Vesanen and Raulas (2006) as the starting point. Design/methodology/approach Lead by the exploratory character of the study, semi-structured expert interviews were conducted with marketers, market researchers and online privacy specialists. Findings The results showcase how practitioners view the issues present in consumer research. First, they are overly positive about personalisation. Second, they are aware of constraining factors; findings showcase best practices to mitigate them. Finally, practitioners are aware of controversies surrounding personalisation and thus engage in ethical discussions on personalisation. Research limitations/implications This study shows that practitioners have somewhat different believes about the utility and appreciation of personalised marketing practices than consumers. It also shows awareness of some of the key concerns of consumers, and that such awareness translates into organisational and technological solutions that can even go beyond what is currently mandated by law. Six insights into personalised marketing as well as expectations for the future of the phenomenon are discussed to steer the research agenda. Practical implications Insights into the practice of personalisation contribute to a shared understanding of this phenomenon between involved actors, such as marketers, advertisers, and consumer representatives. In addition, implications for lawmakers are discussed, suggesting that the implementation of privacy laws needs more clarity and that actions aiming at improving consumer knowledge are needed. Originality/value The paper contributes to the literature first, by drafting a descriptive map of personalisation from a practitioners’ perspective and contrasting it with the perspective stemming from consumer research and, second, by offering insights into the current developments and direct implications for practice and future research.
Learning whilst working
Authors: D’Annunzio-Green Norma , Barron Paul 
Published: February 2019

Purpose
The purpose of this paper is to examine student learner perceptions of benefits, barriers and enablers in learning whilst working, specifically focussing, on learning transfer from a university MSc in human resource management to students’ professional roles as human resource practitioners.

Design/methodology/approach
The study used in-depth semi-structured interviews with alumni of the programme who had graduated between one to three years previously.

Findings
The study found benefits (increased self-confidence, credibility and networking skills) as well as unanticipated challenges relating to individual learner characteristics, organisational culture and work-related support that hindered learning transfer.

Research limitations/implications
The study contributes to understanding the mechanisms required to support part-time learners on continuing vocational education programmes from a variety of stakeholders including students, their managers, their university and work colleagues, and academic staff. It highlights the benefits of activities designed to help students relate theory to practice and facilitate the transfer of knowledge between academic and practitioner environments.

Practical implications
The study highlights learner perspectives that are focussed on how organisational culture and line managers might play a more central role in influencing how people learn at work and facilitate the transfer of learning from formal educational interventions.

Originality/value
The study is valuable to academics and practitioners interested in improving learning transfer from formal educational to professional settings.
Becoming a professional
Authors: Reddy Peter , Shaw Rachel 
Published: February 2019

Purpose
Research into the experience of BSc Psychology students and graduates in the graduate transition was carried out to enquire if ontology is central to educational transformation; if professional work experience is important in the process of becoming; and how graduates experience the transition from student to professional. The paper aims to discuss these issues.

Design/methodology/approach
In this qualitative longitudinal in-depth interview investigation four one-year work placement students were interviewed twice and five graduates were interviewed at graduation and again two years later. Student transcriptions were analysed thematically and graduate transcriptions received interpretative phenomenological analysis.

Findings
Placement students became legitimate participants in professional life. Graduates thought that BSc Psychology should enable a career and were dissatisfied when it did not. Professional psychology dominated career aspiration. Relationships and participation in work communities of practice were highly significant for learning, personal and professional identity and growth.

Practical implications
Ontology may be central to educational transformation in BSc Psychology and is facilitated by integrated work experience. A more vocational focus is also advocated.

Originality/value
The UK Bachelor’s degree in psychology is increasingly concerned with employability however becoming a professional requires acting and being as well as knowledge and skills and Barnett and others have called for higher education to embrace an ontological turn. This is explored in the context of BSc Psychology student experience and reflection on work placements, graduation and early career development.
The impact of envy on brand preference: brand storytelling and psychological distance as moderators
Authors: Kao Danny Tengti 
Published: February 2019

PurposeWhile envy has been widely explored in psychology literature, theoretical understanding of the effects of envy on consumers’ emotional responses to brands is promising but under explored. Therefore, this study aims to apply cases of envy and psychological distance to consumers to examine whether the style of brand storytelling can moderate brand preference.Design/methodology/approachThree experimental studies were conducted to test the hypotheses. Experiment 1 investigated the effect of envy on consumer evaluations of an advocated brand, through viewing a series of advertisements that varied in brand storytelling styles. A total of 104 working students were randomly assigned to a 2 (brand storytelling: underdog vs top dog) single factorial design. Experiment 2 investigates the effect of envy on consumer evaluations of the advocated brand through viewing advertisements that varied in psychological distance. A total of 108 working students were randomly assigned to a 2 (psychological distance: proximal vs distant) single factorial design. Experiment 3 investigated the effect of envy on evaluations of the brand through viewing advertisements that varied in brand storytelling style and psychological distance. A total of 208 working students were randomly assigned to a 2 (underdog vs top dog) × 2 (proximal vs distant psychological distance) between-subject factorial design.FindingsResults demonstrate that for consumers experiencing benign and malicious envy, advertisements characterized by brand storytelling (underdog vs top dog) and psychological distance (proximal vs distant) will elicit differential brand preferences.Originality/valueThis research takes up the call to address the limited attention given to envy in the context of brand advertising. Specifically, this research aims to explore how consumer envy influences brand preference and the role of moderating effects such as brand storytelling and psychological distance in this context.
Performance improvement of CSS over imperfect reporting using diversity reception in cognitive radio networks
Authors: Sharma Girraj , Sharma Ritu 
Published: February 2019

Purpose
This paper aims to discuss over imperfect reporting channel the performance of cooperative spectrum sensing (CSS). It is investigated that imperfect reporting channel introduces some lower bound in false alarm probability (Pf). The lower bound of probability of false alarm linearly increases with the probability of reporting error.

Design/methodology/approach
To solve this problem, a transmit diversity-based CSS method is proposed, and to improve the detection performance, square law selection (SLS) diversity is used.

Findings
It is observed that detection probability increases up to 11.55 per cent when SLS diversity is applied, and lower bound Qf decreases up to 80 per cent when transmit diversity is applied.

Originality/value
No literature is available to the best of the authors’ knowledge that measures the performance of CSS with respect to parameters as reported in this paper.
Intervals and (non-)negative numbers
Authors: Markov Svetoslav Marinov 
Published: February 2019

Intervals have a double nature: they can be considered as compact sets ofВ real numbers (set-intervals) or as approximate numbers. A set-interval isВ presented as an ordered pair of two real numbers (interval end-points), whereasВ an approximate number is an ordered pairВ consisting of a real ``exact'' number and a nonnegative error bound.В Thus, differently to the case withВ set-intervals, where both endpoints are real numbers, when operating with approximate numbers,В one should know the algebraic properties of the arithmetic operationsВ over error bounds, that is over nonnegative numbers. ThisВ work is devoted to the algebraic study ofВ the arithmetic operations addition and multiplication by scalars for approximate numbers, resp. forВ errors bounds. Such a setting leads to so-called quasilinear spaces. We formulate andВ prove several new properties of such spaces, which areВ important from computational aspect. In particular, we focus our study on theВ operation ``distance between two nonnegative numbers''.В We show that this operation plays an important role in the study of theВ concept of linear independence of interval vectors, the latter being correctly defined.
Aspirin and heparin for the prevention of pre-eclampsia: protocol for a systematic review and network meta-analysis
Authors: Huang Jinzhu , Chen Xiaohong , Xing Haiyan , Chen Lin , Xie Zhaolu , He Shuangshuang , Wang Xiaofang , Li Yong , Cui Huanhuan , Chen Jianhong 
Published: February 2019

IntroductionPre-eclampsia is an important cause of death and complication for pregnant women and perinatal infant. Low-dose aspirin has been most commonly used to prevent pre-eclampsia in high-risk pregnant women. Recently, heparins have also been used alone or in combination with aspirin to prevent pre-eclampsia. However, the optimal doses and combination therapy of aspirin and heparins are not well established. Therefore, we aim to compare aspirin, heparins and their combination to prevent pre-eclampsia in a network meta-analysis.Methods and analysisWe will search the following electronic databases from the date of database establishment to 8 January 2019: PubMed, Embase, Cochrane Library, Web of Science and ProQuest. We will also search additional studies manually. There will be no restriction on the language of publications. Only randomised clinical trials will be eligible in our network meta-analysis. We will include pregnant women who have been recommended for aspirin according to the standard of the American Congress of Obstetricians and Gynecologists, or were designated as high risk in some recent studies. We will include studies comparing the effects of any single or combination of aspirin and heparins with placebo or observation or another intervention in pregnancy. We will include studies that reported one of the following outcomes: pre-eclampsia, severe pre-eclampsia, preterm delivery, perinatal death and full-term pre-eclampsia with delivery at ≥37 weeks. Traditional pairwise meta-analysis will be performed initially, and then network meta-analysis will be performed using frequency analysis method. Subgroup analyses and sensitivity analyses will be conducted to assess the robustness of the findings.Ethics and disseminationThis network meta-analysis does not require ethical certification. An overview and information on the prevention of pre-eclampsia in high-risk pregnant women will be provided by this network meta-analysis.PROSPERO registration numberCRD42018084248.
Environmental asbestos exposure in childhood and risk of mesothelioma later in life: a long-term follow-up register-based cohort study
Authors: Dalsgaard Sofie Bünemann , Würtz Else Toft , Hansen Johnni , Røe Oluf Dimitri , Omland Øyvind 
Published: February 2019

ObjectiveTo examine the risk of malignant mesothelioma (MM) in former pupils who attended primary school near an asbestos cement plant.MethodsA cohort of 12 111 former pupils, born 1940–1970, was established from individual historical records from four primary schools located at a distance of 100–750 m in the prevailing wind direction from an asbestos cement plant operating from 1928 to 1984 in Aalborg, Denmark. The school cohort and a comparison cohort consisting of 108 987 gender and 5-year frequency-matched subjects were followed up (2015) for MM in the Danish Cancer Registry. Using Cox regression, HRs were estimated for the incidence of MM. Adjustments for occupational and familial asbestos exposure were made with a job exposure matrix. An SIR analysis including latency periods testing the cancer incidence rate was performed with the comparison cohort as the reference rate.ResultsThe median person-years of follow-up were 62.5 years in the school cohort and 62.2 years in the comparison cohort. There were 32 males and 6 females of the former pupils who developed MM during the follow-up: HRmale7.01 (95% CI 4.24 to 11.57), HRfemale7.43 (95% CI 2.50 to 22.13). Those who attended school 250 m north of the plant had the highest HR for MM, 10.65 (95% Cl 5.82 to 19.48). No significant trend between school distance and risk of MM was established (p=0.35).ConclusionOur results suggest that boys and girls who attended schools and lived in the neighbourhood of an asbestos cement plant later in life have a significantly increased risk of MM.
Validity of Alvarado Score in predicting disease severity and postoperative complication in pediatric acute appendicitis
Authors: Chung Patrick H Y , Dai Kanglin , Yang Zhen , Wong Kenneth K Y 
Published: February 2019

BackgroundThis study evaluates the validity of Alvarado Score in predicting disease severity and the development of postoperative complications in pediatric appendicitis.MethodsThis is a retrospective, bicentered study on pediatric patients with emergency appendicectomy performed from 2006 to 2016. The relationship of Alvarado Score (low: 1–4, medium: 5–6, high: 7–10) and operative findings/complications was analyzed.ResultsA total of 316 patients were included and the median age on admission was 10.8 years. The overall median score was 8.0. 13.3%, 20.2%, and 66.5% of patients had low, medium, and high risk scores, respectively. 36.1% of patients had complicated appendicitis and the median score was comparable with that of the uncomplicated cases (7.0 vs 7.4, p=0.21). More complicated cases were found in the medium-risk group (high vs medium vs low=29.7% vs 61.4% vs 31.0%, p=0.01). Rebound tenderness had the highest positive predictive value (65%) for complicated appendicitis. Postoperative complications were found in 16.5% of patients with a higher median score (7.87 vs 5.8, p=0.01).ConclusionAlvarado Score does not predict disease severity but postoperative complication. Patients with medium risk score should also be treated promptly for the risk of having complicated disease. Rebound tenderness may be a signal for complicated appendicitis and should be properly examined.
Dorsal vertical island flap urethroplasty in children with hypospadias: a single center’s experience 75 patients
Authors: Chalapathi Gontumukkala , Sitha Ramaiah Kadiri , Veeraswamy Javvadi 
Published: February 2019

ObjectiveTo assess the results and complications of dorsal vertical island flap (DVIF) urethroplasty.MethodsA total of 175 children were operated on for hypospadias. Out of these, 41 with proximal hypospadias with severe chordee required two-stage urethroplasty. In 18 babies with glanular hypospadias, a meatal advancement and glanuloplasty procedure was done. In 25 babies with mid-penile and distal penile hypospadias, tubularized incised urethral plate (TIP) urethroplasty was the option. 16 babies with unhealthy urethral plate and chordee were chosen for dorsal vertical tube urethroplasty after excision of the urethral plate. The rest of the 75 babies with proximal, mid-penile or distal penile hypospadias with no or minimal chordee after degloving and poor urethral plate were chosen for DVIF urethroplasty. These 75 babies with DVIF were followed up from 3 months to 5 years to assess complications such as urethrocutaneous fistula, meatal stenosis, glans dehiscence, megalourethra or urethral diverticulum, stricture, and penile torsion/rotation.ResultsA total of 75 patients with proximal, mid-penile, or distal penile hypospadias in whom DVIF was used during the study period were included. The mean age was 3.7 years, ranging from 8 months to 14 years. Fourteen patients developed complications (18.6%). The most common complication was urethrocutaneous fistula, which was seen in seven (9.3%) patients. Glans dehiscence was seen in five patients (6.6%), and one had meatal stenosis with diverticulum formation. Skin necrosis was observed in one patient. In 61 patients, stream was good, with no torsion, and good cosmetic appearance was observed.ConclusionsDVIF is a good alternative to TIP in mid-penile and distal penile hypospadias. Our early experience with DVIF urethroplasty showed an acceptable rate of complications and good cosmetic results.
Effect of 8-h time-restricted feeding on sleep quality and duration in adults with obesity
Authors: Gabel Kelsey , Hoddy Kristin K. , Burgess Helen J. , Varady Krista A. 
Published: February 2019

This study examined the effects of time-restricted feeding (TRF; 8-h feeding window/16-h fasting window daily) on sleep. Obese adults (n = 23) followed 8-h TRF for 12 weeks. Pittsburgh Sleep Quality Index (PSQI) total score was below 5 at week 1 (4.7 ± 0.5) and week 12 (4.8 ± 0.7), indicating good sleep quality throughout the trial. Subjective measures of wake time, bedtime, and sleep duration remained unchanged. Findings from this secondary analysis indicate that TRF does not alter sleep quality or duration in subjects with obesity. Novelty This study is the first to show that TRF (8-h feeding window/16-h fasting window daily) does not alter sleep quality or duration in subjects with obesity.
The structure, elastic and thermodynamic properties of Ti2GaC from first-principles calculation
Authors: Pu Xiao-Xia , Long Xiao-Jiang , Zhang Lin , Zhu Jun 
Published: February 2019

In this work, the structure, elastic and thermodynamic properties of Ti2GaC at high pressure (P) and high-temperature (T) are studied based on the density functional first-principles. The lattice parameters and elastic constants are well consistent with some theoretical data and experimental results. The elastic constant of Ti2GaC increase monotonously with the increase of pressure (P), which demonstrates the mechanical stability of Ti2GaC at the pressure (P) from 0 to 200 GPa. Mechanical properties including Poisson’s ratio ([Formula: see text]), Young’s modulus (E), shear modulus (G) and bulk modulus (B), which are obtained from elastic constants C[Formula: see text]. The ratio B/G value shows that Ti2GaC is a brittle material, but its enhancing ductility significantly with the elevate of pressure (P). The Grüneisen parameters ([Formula: see text]), thermal expansion coefficient ([Formula: see text]), heat capacity (C[Formula: see text]), elastic constant (C[Formula: see text]), bulk modulus (B), energy (E) and volume (V) with the change of temperature (T) or pressure (P) are calculated within the quasi-harmonic Debye model for pressure (P) and temperatures (T) range in 1600 K and 100 GPa. Besides, densities of states and energy band are also obtained and analyzed in comparison with available theoretical data.
Modification in structural, functional, thermal, dielectric, impedance and nonlinear optical properties of ammonium pentaborate crystal by addition of di-sodium sulphide nanoparticles
Authors: Kochuparampil A. P. , Joshi J. H. , Jethva H. O. , Joshi M. J. 
Published: February 2019

Ammonium penataborate (APB) crystals are well known for their nonlinear optical (NLO) properties. Attempt is made to study the changes produced by addition of chalcogenide compound sodium sulphide in APB crystals. Di-sodium sulphide (Na2S) is soluble in water and its solubility is further increased for Na2S nanoparticles. The Na2S nanoparticles are synthesized by using co-precipitation method followed by microwave irradiation. The slow solvent evaporation method is used to grow pure and Na2S added APB crystals. Pure and Na2S added APB crystals possess orthorhombic crystal structure with the mixed phase nature for the Na2S added APB. The presence of sodium in APB is confirmed by AAS study. In FTIR spectra the absorption peak of S–H asymmetric stretching is observed for Na2S added APB indicating the presence of sulphur. The thermal stability of APB crystal is enhanced on doping the Na2S in it. The dielectric study is also carried out within this frequency range. The Jonscher’s power law is applied to AC conductivity data. The impedance spectroscopy study is carried out at room temperature within 100 Hz to 1 MHz frequency range. The complex impedance and modulus plots are drawn. The complex impedance plots indicate only the grain contribution. The Kurtz and Perry powder study indicates that all the crystals are exhibiting NLO properties with varying SHG efficiency.