bluuebunny/crossref_metadata_2025_split huggingface dataset:
A monocular visual measurement system for UAV probe-and-drogue autonomous aerial refueling
Authors: Xin Long , Luo Delin , Li Han 
Published: April 2018

PurposeThe purpose of this paper is to develop a monocular visual measurement system for autonomous aerial refueling (AAR) for unmanned aerial vehicle, which can process images from an infrared camera to estimate the pose of the drogue in the tanker with high accuracy and real-time performance.Design/methodology/approachMethods and techniques for marker detection, feature matching and pose estimation have been designed and implemented in the visual measurement system.FindingsThe simple blob detection (SBD) method is adopted, which outperforms the Laplacian of Gaussian method. And a novel noise-elimination algorithm is proposed for excluding the noise points. Besides, a novel feature matching algorithm based on perspective transformation is proposed. Comparative experimental results indicated the rapidity and effectiveness of the proposed methods.Practical implicationsThe visual measurement system developed in this paper can be applied to estimate the pose of the drogue with a fast speed and high accuracy and it is a feasible measurement strategy which will considerably increase the autonomy and reliability for AAR.Originality/valueThe SBD method is used to detect the features and a novel noise-elimination algorithm is proposed. Besides, a novel feature matching algorithm based on perspective transformation is proposed which is robust and accurate.
Two-layer supply chain model for Cauchy-type stochastic demand under fuzzy environment
Authors: De Sujit Kumar , Sana Shib Sankar 
Published: April 2018

Purpose
The purpose of this paper is to deal with profit maximization problem of two-layer supply chain (SC) under fuzzy stochastic demand having finite mean and unknown variance. Buyback policy is employed from the retailer to supplier. The profit of the supplier solely depends on the order size of the retailers. However, the loss of shortage items is related to loss of profit and goodwill dependent. The authors develop the profit function separately for both the retailer and supplier, first, for a decentralized system and, second, joining them, the authors get a centralized system (CS) of decision making, in which one is giving more profit to both of them. The problem is solved analytically first, then the authors fuzzify the model and solve by fuzzy Hausdorff distance method.

Design/methodology/approach
The analytical models are formed for both centralized and decentralized systems under non-cooperative and cooperative environment with suitable constraints. A significant assumption on density function, namely Cauchy-type density function, is introduced for demand rate because of its wider range of the retailers’ satisfactions. Fuzzy Hausdorff metric is incorporated within the fuzzy components of the fuzzy sets itself. Using this method, the authors find out closure values of both centralized and decentralized policies, which is an essential part of any cooperative and non-cooperative two-layer SC models. Moreover, the authors take care of the profit values with corresponding ambiguities for both the systems explicitly.

Findings
It is found that the centralize policy of SC could only be able to maximize the profit of both the retailers and suppliers. All analytical results are illustrated numerically along with sensitivity analysis and side by side comparative studies between Hausdorff and Euclidean distance measure are done exclusively.

Research limitations/implications
The main focus of attention of the proposed model is given to usefulness of Hausdorff distance. Unlike other distances, Hausdorff distance can take special care on the similarity measures of different fuzzy sets. Researchers have been engaged to use Hausdorff distance on the different fuzzy sets but, in this study, the authors have used it within the components of a same fuzzy set to gain more closure values than other methods.

Originality/value
The use of this Hausdorff distance approach is totally new as per literature survey suggested yet. However, the Cauchy-type density function has not been introduced anywhere in SC management problems by modern researchers still now. In crisp model, the sensitivity on goodwill measures really provides a special attention also.
Determinants of client satisfaction in web development projects from freelance marketplaces
Authors: Haq Naveed Ul , Raja Ammar Aftab , Nosheen Safia , Sajjad Muhammad Faisal 
Published: April 2018

Purpose
The purpose of this paper is to identify the major factors of client satisfaction (CS) that are critical for web development projects in freelance marketplaces. This quantitative study is done from the point of view of the web development services clients. Five major dimensions were proposed as determinants of CS from the literature review: ease of use, user interface, information, security and privacy.

Design/methodology/approach
A web-based survey methodology is used as the main data collection instrument. Statistical techniques such as confirmatory factor analysis and multiple linear regressions are used to analyze 162 responses of questionnaires.

Findings
The findings suggest that all factors do influence CS. In terms of strength, security had the highest level of impact on CS, so it is the strongest determinant among all factors. After security, ease of use and information are considered as strong determinants. So, this study concludes that the five major determinates do affect CS in web development projects from freelance marketplaces.

Research limitations/implications
This research is limited only to the top freelance marketplaces, such as Upwork, Freelancer, Fiverr, Guru, Envato Studio, etc. The sample size is relatively small and this study is focused on web development projects only. Moreover, this research is focused only on the characteristics or attributes of the projects final outcome, i.e. website.

Practical implications
This study attempts to identify the important factors that have a relation with CS, thus giving freelancers an indication of what to look for when working on any web development project posted by any client in a freelance marketplace. Understanding the determinants of CS will also help Pakistani information technology freelancers involved in web development projects and services to increase their project performance, improve their CS rate and increment client following.

Originality/value
This presents the first study on the determinants of CS in web development projects from freelance marketplaces.
Social Media Recruitment 3.0
Authors: Aggerholm Helle Kryger , Andersen Sophie Esmann 
Published: April 2018

Purpose
Drawing on a unique case of a Web 3.0 recruitment campaign, the purpose of this paper is to explore how a Web 3.0 social media recruitment communication strategy influence, add value to and challenge conventional recruitment communication management.

Design/methodology/approach
The study draws on a reflexive dialogical research approach, which means that it is methodologically designed as a critical dialogue between on the one hand an empirical case and on the other hand theories on social media and strategic communication.

Findings
The study points toward a fundamental new approach to recruitment communication. The application of a Web 3.0 strategy entails what we term an open source recruitment strategy and a redirection of employee focus from work life to private life. These insights point toward ontologically challenging the basic assumptions of employees, work life and the employing organization.

Research limitations/implications
The paper presents a single-case study, which prepares the ground for larger, longitudinal studies. Such studies may apply a more long-term focus on the implications of applying Web 3.0 recruitment strategies and how they may be integrated into – or how they challenge – overall corporate communication strategies.

Practical implications
A turn toward Web 3.0 in recruitment communication affects the degree of interactional complexity and the level of managerial control. Furthermore, the authors argue that the utilization of a Web 3.0 strategy in recruitment communication put forth precarious dilemmas and challenges of controllability, controversy, ownership and power relations, demanding organizations to cautiously entering the social media 3.0 employment market.

Originality/value
This study indicates how the value and potentials of social media as facilitating participatory processes and community conversations can be strategically used in and fundamentally alter recruitment communication, and hence offers new insights into a paradigmatically new way of understanding what strategic social media recruitment is, can and do.
Leader-member exchange and employee creativity
Authors: Liao Shu-Hsien , Chen Chih-Chiang 
Published: April 2018

PurposeThe purpose of this paper is to test the mediating role of LMX in the relationship between knowledge sharing and employee creativity and the extent to which this mediating role is moderated by transactional psychological contract.Design/methodology/approachA total of 286 employees working at the theme park in Taiwan and then analyzed using a structuring equation model with SPSS 12.0, LISREL 8.8 and SPSS PROCESS.FindingsResults suggested that LMX mediated the relationship between knowledge sharing and employee creativity. Also, results suggested that transactional psychological contract moderated this mediating pathway: low transactional psychological contract increases the mediating role of LMX. Furthermore, the study showed that LMX can buffer the negative effects of transactional psychological contract on employee creative performance.Originality/valueThe originality of this study is to explore whether there is a moderated mediation model relationship among research variables and contributed to the LMX literature because there are few studies to discuss how knowledge sharing might stimulate creative outcome through LMX.
Elucidating social networking apps decisions
Authors: Chua Pei Ying , Rezaei Sajad , Gu Man-Li , Oh YokeMoi , Jambulingam Manimekalai 
Published: April 2018

PurposeThe purpose of this paper is to investigate the determinants of behavioural intention and use behaviour towards social networking apps. Exogenous latent constructs, namely, performance expectancy, effort expectancy and social influence are the key antecedents proposed based on the unified theory of acceptance and use of technology to predict the usage intention and behaviour of social networking apps (i.e. endogenous latent constructs). Experience as a moderator is the extended construct to explain social networking apps user’s behavioural intention.Design/methodology/approachTo target young generation (Millennial), a cross-sectional data collection approach was conducted to collect data from the social networking apps users (i.e. Facebook, WhatsApp, WeChat, Twitter, Instagram, YouTube, Snapchat and others) whereby a total of 384 valid questionnaires were obtained from six universities in Malaysia. Statistical analysis using partial least squares path modelling approach and a variance-based structural equation modelling (VB-SEM) techniques is performed to analyse the measurement and structural relationship.FindingsThe findings indicate that performance expectancy, effort expectancy and social influence determine behavioural intention, and behavioural intention impacts social networking apps use behaviour. Moreover, the moderation analysis reveals that the relationship between effort expectancy and behavioural intention is moderated by experience, whereas the relationship between social influence and behavioural intention is not moderated by experience.Originality/valueWhile the surge of social networking apps has gained tremendous popularity among Millennial as an attractive market segment, previous studies mainly have focussed on intention and behaviour of online users in general. Despite apps and related technologies which have opened a new era of effective communications in marketing, social networking apps usage intention and behaviour focussing on Millennial is not well understood in the current literature. This study contributes and sheds lights on the current issue of social networking apps usage intention and behaviour and looks into a key rising market segment, the Millennial users.
Back to traditional stadium names
Authors: Huth Christopher 
Published: April 2018

Purpose
Despite the growing number of corporate-sponsored sport facilities, public resistance to naming rights sometimes arises. In line with other supporter-based financial instruments such as fan bonds or shares, the possibility arises that a sport club’s supporters could invest in the stadium naming rights to secure a traditional name, possibly by initiating a crowdfunding project. The purpose of this paper is to evaluate the factors separating potential capital providers from non-participants and to determine which factors influence the investment decision.

Design/methodology/approach
The authors used an online questionnaire to evaluate respondents’ willingness to participate in a crowdfunding project. The data were analyzed by logit and probit regressions. The link was posted to selected online fan forums as well as to clubs’ fan group caretakers in Germany. In total, 708 respondents fully completed the questionnaires. Additionally, the authors provided the initial results of a proposal for a hypothetical reward-based crowdfunding project that was also part of the questionnaire.

Findings
The findings indicate that the most involved participants who support traditional values in sports are the most willing to participate in a crowdfunding project. Thus, crowdfunding can actually be seen as a supporter-based instrument that is an alternative to existing sport facility naming rights models. However, the analysis also indicates that the sums that can be generated through crowdfunding are limited.

Originality/value
Insight into a relatively new financial instrument is provided, and an alternative approach to sport facility naming rights management is offered. Ultimately, a combination of a crowdfunding project with financing by a certain number of sponsors supporting a traditional name is proposed, which may be a possible future solution that sport facility naming rights management groups can pursue.
Comparing Categorical and Probabilistic Fingerprint Evidence
Authors: Garrett Brandon , Mitchell Gregory , Scurich Nicholas 
Published: April 2018

AbstractFingerprint examiners traditionally express conclusions in categorical terms, opining that impressions do or do not originate from the same source. Recently, probabilistic conclusions have been proposed, with examiners estimating the probability of a match between recovered and known prints. This study presented a nationally representative sample of jury‐eligible adults with a hypothetical robbery case in which an examiner opined on the likelihood that a defendant's fingerprints matched latent fingerprints in categorical or probabilistic terms. We studied model language developed by the U.S. Defense Forensic Science Center to summarize results of statistical analysis of the similarity between prints. Participant ratings of the likelihood the defendant left prints at the crime scene and committed the crime were similar when exposed to categorical and strong probabilistic match evidence. Participants reduced these likelihoods when exposed to the weaker probabilistic evidence, but did not otherwise discriminate among the prints assigned different match probabilities.
The Swedish School Attack in Trollhättan
Authors: Erlandsson Åsa , Reid Meloy J. 
Published: April 2018

AbstractThis is a case report of the offender and offense characteristics of a targeted attack on a Swedish school using a sword, with a particular focus upon the offender's history, the relationship between mental disorder and ideology, and whether or not it was an act of terrorism. Findings indicate that the offender had no drug or psychiatric treatment history, but postoffense analysis suggests autism spectrum disorder, depression, and both suicidal ideation and intent. The offender planned and prepared for his attack, and the triggering event appeared to be the loss of a temporary job. He expressed chronic anger concerning immigrants to Sweden and blamed them for his failures. Comparison of the fact pattern to other cases of lone actor terrorism with the Terrorist Radicalization Assessment Protocol (TRAP‐18) empirically demonstrates excellent criterion validity with other lone actor terrorists in Europe and North America—including right wing extremists—and contributes to further understanding of ideologically motivated mass murder.
How supervisory support for career development relates to subordinate work engagement and career outcomes: The moderating role of task proficiency
Authors: Yang Fu , Liu Jun , Huang Xiaoyu , Qian Jing , Wang Ting , Wang Zhen , Yu Huiping 
Published: April 2018

AbstractDrawing on conservation of resources theory, this research investigates how and when supervisory support for career development relates to subordinate career outcomes. Using data collected from 228 supervisor–subordinate dyads across 3 phases, we proposed and examined a mediated moderation model in which the interaction between supervisory support for career development and task proficiency was mediated by work engagement in predicting career outcomes in terms of career satisfaction and promotability. Results showed that supervisory support for career development was positively related to career satisfaction and promotability. Results also supported the mediated moderation model. We outlined the theoretical contributions for future research and discussed the practical implications.
Detection of individual responses to clopidogrel: Validation of a novel, rapid analysis using thrombelastography 6s
Authors: Olechowski Bartosz , Dalton Richard T. , Khanna Vikram , Ashby Alexander , Vavyla Maria , Mariathas Mark , Harris Scott , Nicholas Zoe , Mahmoudi Michael , Curzen Nick 
Published: April 2018

SummaryIntroductionThere is potential value in testing individual response to P2Y12 inhibitors to predict ischemic and bleeding risk in patients undergoing percutaneous coronary intervention. The aims of this study were: (1) to validate the ability of a novel point of care (POC) assay, thrombelastography (TEG) 6s, to detect changes in adenosine diphosphate (ADP)‐induced whole blood clotting in volunteers and patients given clopidogrel using TEG 5000 as a reference and (2) to compare a novel, rapid parameter, area under the curve at 15 minutes (AUC15), with the traditional maximum clot amplitude (MA) in TEG 6s.MethodsA total of 25 participants were included in whom ADP‐induced clotting was measured at 4 time points: (1) 12 healthy volunteers given 600 mg of clopidogrel; (2) 12 patients with ACS given 600 mg of clopidogrel; (3) 1 healthy volunteer given 600 mg of clopidogrel on 5 separate occasions. All samples were tested using conventional TEG 5000 and the new POC TEG 6S, and a new parameter called AUC15 was compared with MA in TEG 6s.Results(1) TEG 5000 and TEG 6s both detected changes in ADP‐induced platelet activation. Bland‐Altman analysis demonstrated a good level of agreement between them. (2) For TEG 6S, correlation between MA and the novel AUC15 was strong for both thrombin and ADP channels (R2 = 0.867, R = .936, P < .001), and the AUC15 result was available on average 13.3 minutes earlier.ConclusionsThrombelastography 6s is a rapid, easy to use and accurate test of ADP‐induced clotting using TEG 5000 as a reference. A novel parameter, AUC15, is a viable, time‐saving option for this test and has potential value in personalized P2Y12 inhibitor therapy.
Molecular description of α‐keto‐based inhibitors of cruzain with activity against Chagas disease combining 3D‐QSAR studies and molecular dynamics
Authors: Saraiva Ádria P. B. , Miranda Ricardo M. , Valente Renan P. P. , Araújo Jéssica O. , Souza Rutelene N. B. , Costa Clauber H. S. , Oliveira Amanda R. S. , Almeida Michell O. , Figueiredo Antonio F. , Ferreira João E. V. , Alves Cláudio Nahum , Honorio Kathia M. 
Published: April 2018

In this work, a group of α–keto‐based inhibitors of the cruzain enzyme with anti‐chagas activity was selected for a three‐dimensional quantitative structure–activity relationship study (3D‐QSAR) combined with molecular dynamics (MD). Firstly, statistical models based on Partial Least Square (PLS) regression were developed employing comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) descriptors. Validation parameters (q2 and r2)for the models were, respectively, 0.910 and 0.997 (CoMFA) and 0.913 and 0.992 (CoMSIA). In addition, external validation for the models using a test group revealed r2pred = 0.728 (CoMFA) and 0.971 (CoMSIA). The most relevant aspect in this study was the generation of molecular fields in both favorable and unfavorable regions based on the models developed. These fields are important to interpret modifications necessary to enhance the biological activities of the inhibitors. This analysis was restricted considering the inhibitors in a fixed conformation, not interacting with their target, the cruzain enzyme. Then, MD was employed taking into account important variables such as time and temperature. MD helped describe the behavior of the inhibitors and their properties showed similar results as those generated by QSAR‐3D study.
Salbutamol‐induced electrophysiological changes show no correlation with electrophysiological changes during hyperinsulinaemic–hypoglycaemic clamp in young people with Type 1 diabetes
Authors: Novodvorsky P. , Bernjak A. , Robinson E. J. , Iqbal A. , Macdonald I. A. , Jacques R. M. , Marques J. L. B. , Sheridan P. J. , Heller S. R. 
Published: April 2018

AbstractAimsHypoglycaemia causes QT‐interval prolongation and appears pro‐arrhythmogenic. Salbutamol, a β2‐adrenoreceptor agonist also causes QT‐interval prolongation. We hypothesized that the magnitude of electrophysiological changes induced by salbutamol and hypoglycaemia might relate to each other and that salbutamol could be used as a non‐invasive screening tool for predicting an individual's electrophysiological response to hypoglycaemia.MethodsEighteen individuals with Type 1 diabetes were administered 2.5 mg of nebulized salbutamol. Participants then underwent a hyperinsulinaemic–hypoglycaemic clamp (2.5 mmol/l for 1 h). During both experiments, heart rate and serum potassium (and catecholamines during the clamp) were measured and a high‐resolution electrocardiogram (ECG) was recorded at pre‐set time points. Cardiac repolarization was measured by QT‐interval duration adjusted for heart rate (QTc), T‐wave amplitude (Tamp), T‐peak to T‐end interval duration (TpTend) and T‐wave area symmetry (Tsym). The maximum changes vs. baseline in both experiments were assessed for their linear dependence.ResultsSalbutamol administration caused QTc and TpTend prolongation and a decrease in Tamp and Tsym. Hypoglycaemia caused increased plasma catecholamines, hypokalaemia, QTc and TpTend prolongation, and a decrease in Tamp and Tsym. No significant correlations were found between maximum changes in QTc [r = 0.15, 95% confidence interval (95% CI) −0.341 to 0.576; P = 0.553), TpTend (r = 0.075, 95% CI −0.406 to 0.524; P = 0.767), Tsym (r = 0.355, 95% CI −0.132 to 0.706; P = 0.149) or Tamp (r = 0.148, 95% CI −0.347 to 0.572; P = 0.558) in either experiment.ConclusionsBoth hypoglycaemia and salbutamol caused pro‐arrhythmogenic electrophysiological changes in people with Type 1 diabetes but were not related in any given individual. Salbutamol does not appear useful in assessing an individual's electrophysiological response to hypoglycaemia.