bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integration and validation of an SMS-based bidding procedure of eliciting consumers’ willingness-to-pay for food
Authors: Mogendi Joseph Birundu , De Steur Hans , Makokha Anselimo , Gellynck Xavier 
Published: August 2016

Purpose
Despite the large body of research on consumers’ willingness-to-pay for new food, few studies have tried to integrate new technology-based systems and improve their validity. The purpose of this paper is to analyse the integration of short messaging service (SMS) in experimental auctions.

Design/methodology/approach
Based on a case study on iodine biofortified food with 180 household decision makers in Africa, a standard Becker-Degroot-Marschak procedure was compared with the novel SMS-based procedure through five information/auction rounds. Thereby, a standard protocol commonly employed in validation of medical diagnostic tests was adopted, assessing the sensitivity, specificity, precision, negative predictive values, likelihood ratios and post-test probability.

Findings
The SMS-based elicitation exhibited high levels of sensitivity (89-95 per cent), specificity (63-73 per cent), precision (40-60 per cent), NPV (92-98 per cent), LR+(2.6-3.3) and LR−(0.08-0.2) for all the auction rounds. The post-test plot indicates that the novel procedure is particularly consistent in ascertaining positive and negative valuations for a new food product.

Originality/value
Even though SMS-based bidding is shown to be an accurate, but also convenient and attractive bidding procedure, which is in line with novel ways of purchasing food, further validation is inevitable to determine its reliability in different contexts and its most effective use.
Effects of quality claims on willingness to pay for organic food
Authors: Cagalj Marin , Haas Rainer , Morawetz Ulrich B. 
Published: August 2016

Purpose
Claims about environmental impact, health effects and taste of food products are restricted in the EU. The purpose of this paper is to quantify how much such claims would change the willingness to pay (WTP) for organic products in Croatia.

Design/methodology/approach
For estimating the WTP under different claims the authors used an experimental auction. Participants (258) bid for real food products (organic and conventional tomatoes and apples) and are endowed with cash at a location where they usually go shopping.

Findings
For the sample the authors find that consumers are willing to pay on average a premium of 42 percent for organic apples and 59 percent for organic tomatoes. On top of that, WTP increases between 16-20 percent for environmental claims and 12 percent for health claims. Taste-related claims are not significant.

Practical implications
Sellers and producers of organic food can benefit from adding claims to organic labels. To protect consumers from manipulation, regulators are well advised to be cautions when allowing claims about credence attributes of food.

Originality/value
The authors quantify the influence of claims about organic products on the WTP by using experimental auctions which are particularly suitable to investigate effects which cannot be observed on the market.
A global exploration of Big Data in the supply chain
Authors: Richey Robert Glenn , Morgan Tyler R. , Lindsey-Hall Kristina , Adams Frank G. 
Published: August 2016

Purpose
Journals in business logistics, operations management, supply chain management, and business strategy have initiated ongoing calls for Big Data research and its impact on research and practice. Currently, no extant research has defined the concept fully. The purpose of this paper is to develop an industry grounded definition of Big Data by canvassing supply chain managers across six nations. The supply chain setting defines Big Data as inclusive of four dimensions: volume, velocity, variety, and veracity. The study further extracts multiple concepts that are important to the future of supply chain relationship strategy and performance. These outcomes provide a starting point and extend a call for theoretically grounded and paradigm-breaking research on managing business-to-business relationships in the age of Big Data.

Design/methodology/approach
A native categories qualitative method commonly employed in sociology allows each executive respondent to provide rich, specific data. This approach reduces interviewer bias while examining 27 companies across six industrialized and industrializing nations. This is the first study in supply chain management and logistics (SCMLs) to use the native category approach.

Findings
This study defines Big Data by developing four supporting dimensions that inform and ground future SCMLs research; details ten key success factors/issues; and discusses extensive opportunities for future research.

Research limitations/implications
This study provides a central grounding of the term, dimensions, and issues related to Big Data in supply chain research.

Practical implications
Supply chain managers are provided with a peer-specific definition and unified dimensions of Big Data. The authors detail key success factors for strategic consideration. Finally, this study notes differences in relational priorities concerning these success factors across different markets, and points to future complexity in managing supply chain and logistics relationships.

Originality/value
There is currently no central grounding of the term, dimensions, and issues related to Big Data in supply chain research. For the first time, the authors address subjects related to how supply chain partners employ Big Data across the supply chain, uncover Big Data’s potential to influence supply chain performance, and detail the obstacles to developing Big Data’s potential. In addition, the study introduces the native category qualitative interview approach to SCMLs researchers.
3G post adoption users experience with telecommunications services
Authors: Rezaei Sajad , Amin Muslim , Moghaddam Minoo , Mohamed Norshidah 
Published: August 2016

Purpose
The purpose of this study is to examine the impact of service quality, perceived usefulness and users’ cognitive satisfaction to determine the third-generation (3G) mobile phone users’ behavioural retention in using 3G telecommunications services.

Design/methodology/approach
A total of 243 valid questionnaires were collected from 3G users in the Klang Valley, Malaysia. The combination of partial least squares (PLS) path modelling approach and structural equation modelling (SEM; PLS-SEM) technique was used to analyze the measurement and structural model.

Findings
Our empirical assessment supports the proposed research hypotheses and further suggests that service quality is a second-order reflective construct comprising navigation and visual design, management and customer service and system reliability and connection quality.

Originality/value
Prior studies have examined the impact of service quality, perceived usefulness, overall users’ satisfaction and behavioural intention on an information system in general. This study is among the few studies that have attempted to gain insights into 3G users’ post-adoption experience with telecommunications services.
Customer mistreatment behavior and hotel employee organizational citizenship behavior
Authors: Wen Ji , Li Yina , Hou Pingping 
Published: August 2016

PurposeThis study mainly aims to examine the mediating effect of perceived organizational support (POS) and the moderating effect oflocusof control and job autonomy on the relationship between customer mistreatment behavior and organizational citizenship behavior.Design/methodology/approachThrough a questionnaire survey of 231 employees and their direct supervisors of five hotels in Guangzhou. This paper analyzed five variables (customer mistreatment, POS,locusof control, job autonomy and organizational citizenship behavior) relationships through a variety of data analysis.FindingsResults indicate that customer mistreatment behavior has a negative effect on employees’ organizational citizenship behavior. The relationship between customer mistreatment behavior and employees’ organizational citizenship behavior is partially mediated by employees’ POS. Staffs’locusof control and job autonomy can modulate the relationship between customers’ mistreatment behavior and POS. Furthermore, the indirect mediating effect of POS on customer mistreatment behavior is revealed. The organizational citizenship behavior linkage is significant only to staff who perceived they have a high level of job autonomy and a highlocusof control.Practical implicationsHotels are advised to provide organizational support and the management of customer mistreatment behavior so as to reflect their employees’ value, seek service innovation and promote production efficiency in practice. Furthermore, it maintains and promotes operational efficiency for service organizations and means the organization pays more attention to meet the social, emotional and psychological needs of its employees.Originality/valueThis article reveals the mechanism relationship between customer mistreatment behavior and employee organizational citizenship behavior. First, it defines the concept of customer mistreatment in the hotel industry and enriches the related research. Second, the study, from the perspective of customer mistreatment, has opened up a new view of organizational citizenship behavior research. Third, we built a research model and it is helpful to grasp the inner mechanism between customer mistreatment and employees’ organizational citizenship behavior. Fourth, this research benefits service organizations so as to maintain and improve their operation efficiency. Furthermore, it can have theoretical guidance for service-oriented organizations to develop a harmonious consumption culture and organizational culture.
A grounded theory study on leader authority formation process in China
Authors: Zhang Xiao-feng , Zhang Xiao-juan , Li Lei , Li Gui-quan , Xi You-min 
Published: August 2016

PurposeThis study aims to focus on the authority formation process of Chinese enterprise leaders, with the purpose of finding out how an ordinary newly established firm leader develops into a real top leader and achieves the status of legitimacy in a well-known enterprise.Design/methodology/approachBased on constructivist grounded theory, this paper investigates the formation mechanism of entrepreneurial authority in China by using the rich data of Liu Chuan-zhi’s leader activities.FindingsIn the “evolution” path of authority formation, leaders continually consolidate and improve their authority through two classes of exceptional management activities: “emergency rescue” and “promotion activities”. The successful realization of exceptional management activities benefits from a leader’s management experience accumulation and relationship maintenance with the government. In the “design” path of authority formation, leaders consolidate and improve their authority by exercising their position of power. Leaders’ legitimacy is reflected by making strategic decision and demonstrating discretion of position power. Additionally, passing on an inspiring leader’s thoughts and ideas to an organization’s members is accomplished through the construction of organization culture, institutionalization and convention.Research limitations/implicationsFirst, the findings are based on only Liu Chuan-zhi’s case. The authors still need more cases to compare and develop the findings and seek theoretical saturation in a broader sense. Second, the qualitative analysis is based on secondary data and future research could consider the introduction of interviews, video and other types of research data.Originality/valueUnder the parallel paths which are “evolution” and “design”, the dynamic leader authority formation model in China is founded.
meteR: an r package for testing the maximum entropy theory of ecology
Authors: Rominger Andrew J. , Merow Cory 
Published: August 2016

Summary

Macroecological patterns appear to follow consistent forms across a range of natural systems; however, the origin of their regularity remains obscured. The maximum entropy theory of ecology (METE) predicts macroecological patterns of abundance, metabolic rates and their distribution within communities and across space using an information theoretic approach. METE's success in predicting empirical patterns demands that we further press the theory's predictions to determine how (or whether) predictability depends on attributes of the system and the temporal, spatial and biological scales at which we study it.

Maximum entropy theory of ecology predicts multiple macroecological metrics using statistical idealizations from information theory; thus, confronting METE with data represents a strong test of the underlying biological mechanisms that could drive real communities away from statistical idealizations. METE has remained somewhat inaccessible due to its highly mathematical nature and a lack of software for model construction/evaluation. To remedy this, we have developed an r package implementation of METE.

Our open‐source (GNU General Public License v2) r package, meteR (version 1.2; https://cran.r-project.org/package=meteR), (i) directly calculates all of METE's predictions from a variety of data formats; (ii) automatically handles approximations and other technical details; and (iii) provides high‐level plotting and model comparison functions to explore and interrogate models.

With these tools in hand, ecologists can more readily test the predictions of METE for their data sets. By facilitating tests of METE, we expect that a better understanding of its strengths and limitations will emerge. A better understanding of the strengths and limitations of METE will offer insight into how biological mechanisms and statistical constraints combine to drive macroecological patterns.
Dietary studies in birds: testing a non‐invasive method using digital photography in seabirds
Authors: Gaglio Davide , Cook Timothée R. , Connan Maëlle , Ryan Peter G. , Sherley Richard B. 
Published: August 2016

Summary

Dietary studies give vital insights into foraging behaviour, with implications for understanding changing environmental conditions and the anthropogenic impacts on natural resources. Traditional diet sampling methods may be invasive or subject to biases, so developing non‐invasive and unbiased methods applicable to a diversity of species is essential.

We used digital photography to investigate the diet fed to chicks of a prey‐carrying seabird and compared our approach (photo‐sampling) to a traditional method (regurgitations) for the greater crested tern Thalasseus bergii.

Over three breeding seasons, we identified >24 000 prey items of at least 48 different species, more than doubling the known diversity of prey taken by this population of terns. We present a method to estimate the length of the main prey species (anchovy Engraulis encrasicolus) from photographs, with an accuracy <1 mm and precision ~ 0·5 mm. Compared to regurgitations at two colonies, photo‐sampling produced similar estimates of prey composition and size, at a faster species accumulation rate. The prey compositions collected by two researchers photo‐sampling concurrently were also similar.

Photo‐sampling offers a non‐invasive tool to accurately and efficiently investigate the diet composition and prey size of prey‐carrying birds. It reduces biases associated with observer‐based studies and is simple to use. This methodology provides a novel tool to aid conservation and management decision‐making in the light of the growing need to assess environmental and anthropogenic change in natural ecosystems.
Carotid‐Femoral Pulse Wave Velocity in Healthy Spanish Children: Reference Percentile Curves
Authors: Mora‐Urda Ana I. , Molina María del Carmen B. , Mill José G. , Montero‐López Pilar 
Published: August 2016

Carotid‐femoral pulse wave velocity (cfPWV) measurement is an appropriate method for determining arterial stiffness and is a useful tool for early detection of cardiovascular disease. However, the lack of reference values due to the difficulty in accessing healthy child populations, among other causes, has limited its use in clinical practice. The aim of this study was to create reference cfPWV percentile curves for healthy children. The initial sample consisted of 350 girls and boys aged 8 to 11 years. The cfPWV per age and sex were generated using the lambda‐mu‐sigma (LMS) technique. The effects of sex, age, arterial pressure, and body mass index were taken into account. The main result of this study is the age‐ and height‐specific cfPWV reference percentile curves for girls and boys. Curves were obtained for both sexes, since sexual differences were observed in growth and development rates that may affect cfPWV.
Phenotypic differentiation is associated with divergent sexual selection among closely related barn swallow populations
Authors: Wilkins M. R. , Karaardıç H. , Vortman Y. , Parchman T. L. , Albrecht T. , Petrželková A. , Özkan L. , Pap P. L. , Hubbard J. K. , Hund A. K. , Safran R. J. 
Published: August 2016

AbstractSexual selection plays a key role in the diversification of numerous animal clades and may accelerate trait divergence during speciation. However, much of our understanding of this process comes from phylogenetic comparative studies, which rely on surrogate measures such as dimorphism that may not represent selection in wild populations. In this study, we assess sexual selection pressures for multiple male visual signals across four barn swallow (Hirundo rustica) populations. Our sample encompassed 2400 linear km and two described subspecies: EuropeanH. r. rustica(in the Czech Republic and Romania) and eastern MediterraneanH. r. transitiva(in Israel), as well as a potential area of contact (in Turkey). We demonstrate significant phenotypic differentiation in four sexual signalling axes, despite very low‐level genomic divergence and no comparable divergence in an ecological trait. Moreover, the direction of phenotypic divergence is consistent with differences in sexual selection pressures among subspecies. Thus,H. r. transitiva, which have the darkest ventral plumage of any population, experience directional selection for darker plumage. Similarly,H. r. rustica, which have the longest tail feathers of any population, experience directional selection for elongated tail feathers and disruptive selection for ventral plumage saturation. These results suggest that sexual selection is the primary driver of phenotypic differentiation in this species. Our findings add to growing evidence of phenotypic divergence with gene flow. However, to our knowledge, this is the first study to relate direct measures of the strength and targets of sexual selection to phenotypic divergence among closely related wild populations.
Research‐active clinical nurses: against all odds
Authors: Siedlecki Sandra L , Albert Nancy M 
Published: August 2016

Aims and objectivesTo develop a theoretical understanding of factors that impact decisions of clinical nurses to conduct a research study.BackgroundOnly a small percentage of all nurses are research‐active and even fewer clinical nurses are research‐active. Several researchers have explored barriers to research activity by clinical nurses, but few have examined why, in spite of all odds, some clinical nurses are research‐active.DesignAs the purpose of this study was to develop a theoretical understanding of the research‐active nurse, a grounded theory approach was used.MethodsThe sample interviewed for this study consisted of registered nurses (n = 26) who worked in a hospital or ambulatory setting, had daily direct patient contact and had participated as principal investigator on at least one completed clinical nursing research study that was not in fulfilment of an educational requirement. The interviews were digitally recorded and analysed by two researchers using the constant comparative method.ResultsThe findings from this study suggest that the conduct of research by clinical nurses was the direct result of a clinical trigger, characteristics and beliefs of the nurse about research and their role in generating knowledge, and the presence of support conditions, such as a research mentor.ConclusionsClinical nurses can and do conduct research, in spite of constraints due to a lack of time, money and/or knowledge, if they have access to research mentors and are practising in a research‐supportive environment.Relevance to clinical practiceNurses at the bedside are in a unique position to identify problems most in need of solutions. Findings from this study provide a foundation upon which to develop and test various programmes that seek to increase the number of clinical nurses who are research‐active.
Epistemicism, Distribution, and the Argument from Vagueness
Authors: Magidor Ofra 
Published: August 2016

AbstractThis paper consists of two parts. The first concerns the logic of vagueness. The second concerns a prominent debate in metaphysics. One of the most widely accepted principles governing the ‘definitely’ operator is the principle of Distribution: if ‘p’ and ‘if p then q’ are both definite, then so is ‘q’. I argue however, that epistemicists about vagueness (at least those who take a broadly Williamsonian line) should reject this principle. The discussion also helps to shed light on the elusive question of what, on this framework, it takes for a sentence to be borderline or definite. In the second part of the paper, I apply this result to a prominent debate in metaphysics. One of the most influential arguments in favour of Universalism about composition is the Lewis‐Sider argument from vagueness. An interesting question, however, is whether epistemicists have any particular reasons to resist the argument. I show that there is no obvious reason why epistemicists should resist the argument but there is a non‐obvious one: the rejection of Distribution argued for in the first part of the paper provides epistemicists with a unique way of resisting the argument from vagueness.
A Purely Recombinatorial Puzzle
Authors: Fritz Peter 
Published: August 2016

AbstractA new puzzle of modal recombination is presented which relies purely on resources of first‐order modal logic. It shows that naive recombinatorial reasoning, which has previously been shown to be inconsistent with various assumptions concerning propositions, sets and classes, leads to inconsistency by itself. The context sensitivity of modal expressions is suggested as the source of the puzzle, and it is argued that it gives us reason to reconsider the assumption that the notion of metaphysical necessity is in good standing.
Platelet function testing in cardiac surgery
Authors: Agarwal S. 
Published: August 2016

SUMMARYBleeding in cardiac surgery is known to cause increased morbidity and mortality. The rise in the use of anti‐platelet medication has led to an increase in the number of patients presenting for cardiac surgery with platelet dysfunction, who are at a heightened risk of bleeding. However, the extent of platelet inhibition is well known to differ among individuals. In the past few years, a number of point‐of‐care platelet function testing devices, which may be able to assess platelet reactivity, have entered the market. This review will examine the devices most commonly studied and the evidence surrounding their use in cardiac surgery and their effect on blood loss.