bluuebunny/crossref_metadata_2025_split huggingface dataset:
Antecedents and consequence associated with esports gameplay
Authors: Jang Wooyoung (William) , Byon Kevin K. 
Published: October 2019

Purpose
Grounded in the Unified Theory of Acceptance and Use of Technology 2 (UTAUT2) (Venkatesh et al., 2012), the purpose of this paper is to examine the antecedents and consequence associated with esports gameplay by proposing the Esports Consumption (ESC) model, including six determinants of esports gameplay intention (hedonic motivation, habit, price value, perceived effort expectancy, social influence and flow) and behavioral consequence (media consumption intention of esports events) that were linked to esports gameplay.

Design/methodology/approach
The proposed model was tested using the data (n=348) that were collected from esports consumers at two points in time. Per the technology adoption theories (i.e. TAM, UTAUT2), the authors incorporated a temporal separation when measuring the relationship between playing intention and playing behavior. For the purpose of data analysis, CFA and SEM were used to examine the hypothesized model.

Findings
As a result, four determinants (i.e. hedonic motivation, price value, effort expectancy and flow) were identified as the critical factors influencing esports consumers’ esports gameplay intention. Furthermore, the bootstrap method procedure verified that a sequential relationship among esports gameplay intention, esports gameplay and media consumption of esports events.

Originality/value
Theoretically, it has developed a research model that explains various triggers resulting from esports gameplay intention, which is causally linked to esports gameplay and media consumption behavior. Practically, the primary implication has to do with providing information regarding esports consumers’ playing behavior with esports game publishers, which organize esports events and leagues.
Airbnb in the Byron Shire, Australia – bane or blessing?
Authors: von der Heidt Tania , Muschter Sabine , Caldicott Rod , Che Deborah 
Published: October 2019

Purpose
Scholarly research into community members’ views on the positive and negative impacts of Airbnb on the local community is sparse, especially in regional Australia. The purpose of this paper is to explore the views of key informants in the Byron Shire of Australia about the impacts of Airbnb on the local community, as well as possible solutions to the problems.

Design/methodology/approach
A qualitative approach of in-depth interviewing using a semi-structured interview guide was used to capture the views regarding the impacts of Airbnb held by 22 key informants in the Byron Shire community. The interview data were analysed using thematic analysis.

Findings
The 22 interviewees identified five main positive impacts of Airbnb on the Byron Shire community and eight main negative impacts of Airbnb. All participants said they wanted more regulation of Airbnb properties to help address the negative impacts of Airbnb in the community. Eight specific recommendations were offered by the interviewees.

Research limitations/implications
The negative impacts of Airbnb felt by local community are more extensive and deleterious than have been accounted for in the literature. Research into community stakeholder perspectives is important, in order to gain a fuller view of the costs and benefits of sharing economy, especially with regard to short-term letting or holiday letting in tourism centres, as well as potential for more sustainable solutions to the issues.

Practical implications
The findings are being used to inform policy makers’ decisions in managing Airbnb in the Shire.

Social implications
The involvement of key informant community members in this study highlights that there is much common ground between different stakeholders. This type of research may help to provide a sense of enfranchisement and empowerment. This is important in fostering a more balanced public debate, as well as more sustainable approaches to managing the issues.

Originality/value
This paper is the first to explore the views of a range of different key informants in the regional tourist area of Byron Shire in Australia with regard to the positive and negative impacts of Airbnb on the local community, as well as possible solutions to the issues raised by Airbnb.
Doing and being: future graduates, careers and Industry 4.0
Authors: Starr-Glass David 
Published: October 2019

Purpose
The purpose of this conceptual study is to reflect on “career” and consider the ways in which its meaning and structure have changed and will continue to change during the era of Industry 4.0. It contends that career advice to students and soon-to-be graduates is an integral part of the educational process and that an understanding of the challenges and opportunities presented by career should be initiated within academia.

Design/methodology/approach
The study is a critical reflection on the literature and the present author’s experience and practice in student career advisement, particularly in the management and business sectors. The methodology used is essentially phenomenological, and the central approach is to make sense of the changing construct of career and the ways in which those changes impact relevant stakeholders. The work is not empirically based and may well have limited generalizability. Nevertheless, it is hoped that it will be of particular interest, value and relevancy to students, graduates and those engaged in career-related issues.

Findings
This study contends that the ongoing evolution of career is best understood as a shift from a progressive sequences of “doing” towards a more expansive and meaningful narrative of “being” and becoming. Recognition of this shift, especially for those studying business-centered subjects, will provide graduates with a better map and direction as they embark on their career trajectories.

Originality/value
Graduation success is critically important for individuals, educational institutions and society at large. A fundamental aspect of perceived success, particularly for business school graduates, is the ability to develop a rewarding career trajectory. This study offers original perspectives on career and presents suggestions that may be of value to those who are about to graduate, to their educational institutions and to those who will deal with them in their work and professional futures.
Improving political science degree programmes in the twenty-first century
Authors: Ahmad Tashfeen 
Published: October 2019

Purpose
This paper aims to examine the actions lecturers, universities and their administrators can take in improving and making political science undergraduate degrees more relevant in the twenty-first century. This paper will reflect on specific measures undertaken by institutions globally to equip students with unique skills to enhance the value and relevance of their programmes in the context of an increased technologically driven environment.

Design/methodology/approach
This paper uses a qualitative approach to the review of the literature with implications for practice in examining how universities globally are applying strategies in raising students’ skill levels to enhance future workplace value. A review of select institutions obtained from the Times Higher Ranked (2019) universities was used in identifying best practices to prepare a political science student for better employability.

Findings
Contrary to prevailing opinions, a huge skills gap exists for filling the demand for twenty-first century political science-related careers in the public and private sector. The attainment of twenty-first century skill sets and the deployment of technology-driven teaching and learning methods are vital elements in unlocking the value of political science education and providing students with opportunities to advance their professional and career objectives.

Originality/value
Higher education institutions need to reconsider their strategies in the delivery of political science degrees, bearing in mind the increased use of technology and innovative teaching practices. This paper offers insight into how to tailor an exciting and relevant political science programme for the future of work.
Determining the impact of entrepreneurial orientation and organizational culture on job satisfaction, organizational commitment, and employee’s performance
Authors: Soomro Bahadur Ali , Shah Naimatullah 
Published: October 2019

PurposeThe purpose of this paper is to investigate the impact of entrepreneurial orientation and organizational culture on job satisfaction, organizational commitment and employee’s performance.Design/methodology/approachThis is a quantitative approach, which is based on cross-sectional data. In total, 326 usable cases are processed to infer the results through the structural equation model.FindingsThe results revealed a positive and significant impact of organizational commitment, job satisfaction and organizational culture on employee’s performance. An entrepreneurial orientation has a positive and significant impact on organizational commitment. Job satisfaction is impacted by organizational commitment, while organizational culture is influenced by job satisfaction. On the other hand, entrepreneurial orientation has a non-significant impact on employee’s performance.Practical implicationsEmployers may shape the organizational culture and boost the general level of job satisfaction of their employees. Further, the study enriches the organizational behavior literature by recognizing and empirically validating the impact of entrepreneurial orientation and organizational culture on job satisfaction, organizational commitment, and employee’s performance in the small and medium enterprises sector of Pakistan.Originality/valueThe findings of the current study may help in creating a better understanding of job satisfaction and delineating its association with organizational culture.
Efficient production of isomelezitose by a glucosyltransferase activity in Metschnikowia reukaufii cell extracts
Authors: Garcia‐Gonzalez Martin , Plou Francisco J. , Cervantes Fadia V. , Remacha Miguel , Poveda Ana , Jiménez‐Barbero Jesús , Fernandez‐Lobato Maria 
Published: October 2019

SummaryMetschnikowia reukaufii is a widespread yeast able to grow in the plants’ floral nectaries, an environment of extreme conditions with sucrose concentrations exceeding 400 g l−1, which led us into the search for enzymatic activities involved in this sugar use/transformation. New oligosaccharides were produced by transglucosylation processes employing M. reukaufii cell extracts in overload‐sucrose reactions. These products were purified and structurally characterized by MS‐ESI and NMR techniques. The reaction mixture included new sugars showing a great variety of glycosidic bonds including α‐(1→1), α‐(1→3) and α‐(1→6) linkages. The main product synthesized was the trisaccharide isomelezitose, whose maximum concentration reached 81 g l−1, the highest amount reported for any unmodified enzyme or microbial extract. In addition, 51 g l−1 of the disaccharide trehalulose was also produced. Both sugars show potential nutraceutical and prebiotic properties. Interestingly, the sugar mixture obtained in the biosynthetic reactions also contained oligosaccharides such as esculose, a rare trisaccharide with no previous NMR structure elucidation, as well as erlose, melezitose and theanderose. All the sugars produced are naturally found in honey. These compounds are of biotechnological interest due to their potential food, cosmeceutical and pharmaceutical applications.
Estimating body mass of free‐living whales using aerial photogrammetry and 3D volumetrics
Authors: Christiansen Fredrik , Sironi Mariano , Moore Michael J. , Di Martino Matías , Ricciardi Marcos , Warick Hunter A. , Irschick Duncan J. , Gutierrez Robert , Uhart Marcela M. 
Published: October 2019

Abstract

Body mass is a key life‐history trait in animals. Despite being the largest animals on the planet, no method currently exists to estimate body mass of free‐living whales.

We combined aerial photographs and historical catch records to estimate the body mass of free‐living right whales (Eubalaena sp.). First, aerial photogrammetry from unmanned aerial vehicles was used to measure the body length, width (lateral distance) and height (dorso‐ventral distance) of free‐living southern right whales (Eubalaena australis; 48 calves, seven juveniles and 31 lactating females). From these data, body volume was estimated by modelling the whales as a series of infinitely small ellipses. The body girth of the whales was next calculated at three measurement sites (across the pectoral fin, the umbilicus and the anus) and a linear model was developed to predict body volume from the body girth and length data. To obtain a volume‐to‐mass conversion factor, this model was then used to estimate the body volume of eight lethally caught North Pacific right whales (Eubalaena japonica), for which body mass was measured. This conversion factor was consequently used to predict the body mass of the free‐living whales.

The cross‐sectional body shape (height–width ratio) of the whales was slightly flattened dorso‐ventrally at the anterior end of the body, almost circular in the mid region, and significantly flattened in the lateral plane across the posterior half of the body. Compared to a circular cross‐sectional model, our body mass model incorporating body length, width and height improved mass estimates by up to 23.6% (mean = 6.1%, SD = 5.27). Our model had a mean error of only 1.6% (SD = 0.012), compared to 9.5% (SD = 7.68) for a simpler body length‐to‐mass model. The volume‐to‐mass conversion factor was estimated at 754.63 kg/m3 (SD = 50.03). Predicted body mass estimates were within a close range of existing body mass measurements.

We provide a non‐invasive method to accurately estimate body mass of free‐living whales while accounting for both their structural size (body length) and relative body condition (body width). Our approach can be directly applied to other marine mammals by adjusting the model parameters (body mass model script provided).
Development of toolkits for detecting dental caries and caries experience among children using self‐report and parent report
Authors: Marcus Marvin , Xiong Di , Wang Yan , Maida Carl A. , Hays Ron D. , Coulter Ian D. , Spolsky Vladimir W. , Lee Steve Y. , Shen Jie , Crall James J. , Liu Honghu 
Published: October 2019

AbstractObjectivesTo develop child‐ and parent‐reported toolkits for active caries and caries experience in children and adolescents, ages 8‐17.MethodsA sample of 398 child/parent dyads recruited from 12 dental practices in Los Angeles County completed a computer‐assisted survey that assessed oral health perceptions. In addition, children received a dental examination that identified the presence or absence of active caries and caries experience. A Multiple Adaptive Regression Splines model was used to identify a subset of survey items associated with active caries and caries experience. The splines and coefficients were refined by generalized cross‐validation. Sensitivity and specificity for both dependent variables were evaluated.ResultsEleven child self‐reported items were identified that had sensitivity of 0.82 and specificity of 0.45 relative to active caries. Twelve parent‐reported items had a sensitivity of 0.86 and specificity of 0.50. Seven child self‐reported items had a sensitivity of 0.86 and specificity of 0.34, and 11 parent‐reported items had a sensitivity of 0.86 and specificity of 0.47 for caries experience.ConclusionsThe survey items identified here are useful in distinguishing children with and without active caries and with and without caries experience. This research presents a path towards using children's and their parents’ reports about oral health to screen for clinically determined caries and caries exposure. The items identified in this study can be useful when clinical information is unavailable.
Biological mobilization of potassium from soil by thirteen Suillus species and ectomycorrhizal Pinus massoniana Lamb. seedlings
Authors: Peng Liyuan , Huang Jianguo , Yuan Ling 
Published: October 2019

AbstractMany forest soils are potassium (K) deficient, and Suillus species are common fungi in boreal pine forests that form ectomycorrhizal associations with trees. To select the ideal ectomycorrhizal fungi for improving the growth and K nutrition of trees in natural and artificial forests, the growth, oxalate efflux, K absorption and soil K depletion by 13 Suillus isolates were compared in pure liquid culture using soil as the sole K source. The growth of mycorrhizal Pinus massoniana Lamb. seedlings and the K extraction through extramatrical mycelia extending from the root surfaces were studied. The results showed that the tested Suillus species varied in growth rate and in the extraction of unavailable K from the soil. Their oxalate efflux may lead to the decomposition of K‐bearing minerals and K release. The plants grown with added mycorrhizal fungi had higher biomass and extracted more K, particularly mineral structural K (HF‐HClO4 digestible K), from the soil through the extramatrical mycelia than the seedlings grown without added mycorrhizal fungi. There was a positive correlation in K uptake between fungi grown in vitro and plants grown with mycorrhizae (R
2 = 0.717, n = 8, p < .01). Therefore, in vivo tests on ectomycorrhizal fungal isolates can be used as a proxy to study the patterns and mechanisms of K extraction from the soil by extramatrical mycelia. Fungal K uptake in vitro could be one of the important indexes in the selection of Suillus for improving the growth and K nutrition of P. massoniana trees.Highlights

Suillus isolates varied in their ability to extract unavailable K from soil.
Oxalate was vital to the degradation of K minerals in soil by Suillus isolates.
Pine seedlings with added mycorrhizal fungi from genus Suillus had larger biomass and K uptake than their non‐mycorrhizal counterparts.

Suillus isolates showed similar patterns in K uptake in vitro and when forming mycorrhiza.
The cost of aggression in an animal without weapons
Authors: Guo Xiaomeng , Dukas Reuven 
Published: October 2019

AbstractTo understand the prevalence and conditional use of aggression among animals, one has to know its costs and benefits. The obvious cost of aggression in animals that possess teeth, claws or other specialized weaponry is injury. Many species, however, do not have such body parts and thus cannot readily injure others. The cost of aggression in these animals is not well studied. We tested whether aggression has a fitness cost in fruit flies, which can serve as a model species for animals without weapons that engage in aggression. In three experiments employing distinct protocols, we allowed focal flies to fight for control of an attractive food patch over 4 days and then compared their survivorship to that of flies not engaged in conflict. In all three experiments, fly survivorship was lower in the aggression than no‐aggression treatments. Microscopic examination revealed no differences in wing damage between flies of the aggression and no‐aggression treatments. The two most likely, non‐mutually exclusive explanations for lower survivorship post‐fighting are physiological changes due to stress, and metabolic alterations associated with a life‐history strategy optimized for high‐conflict settings.
Foraging activity of leaf‐cutter ants is affected by barometric pressure
Authors: Sujimoto Fernando R. , Costa Camila M. , Zitelli Caio H. L. , Bento José Maurício S. 
Published: October 2019

AbstractAmong all activities displayed by ant colonies, searching for food is essential for all individuals survival. However, many external activities are hazardous or restrictive for the entire society. Even though leaf‐cutter ants are highly successful insects, they are subject to extreme aspects of foraging, as raindrops and wind. Although recruitment and food exploitation are known to change with temperature and humidity, barometric pressure changes and how they affect ant behavior remain unknown. We aimed to determine how an increase or decrease in barometric pressure might modify foraging strategies of the leaf‐cutter ant Atta sexdens compared to steady pressure. The first modification observed in the workers behavior was the scouts greater promptness in leaving the nest when the barometric pressure decreased. Regard to the foragers, there was no difference in the number of individuals recruited for collecting leaves. However, it was cut and brought into the nest 1.5 and 2 times more leaves during the pressure drop, respectively. The reason for this foraging efficiency as a whole was ultimately the sum of the efficiency of each forager. The shifts in behavior, therefore, could be related to the indirect consequences of a pressure decrease, such as rainfall and strong winds, both strong constraints on ants on a trail. This is the first report of barometric pressure affecting the behavior of a social insect under controlled conditions.
Does local political support influence financial markets? A study on the impact of job approval ratings of political representatives on local stock returns
Authors: Joo Sunghoon , Kim Dong H. , Park Jung Chul 
Published: October 2019

AbstractUsing data on job approval ratings of governors, U.S. senators, and the president, we find that firms located in states with high approval ratings outperform firms located in states with low approval ratings by .64% per month. Furthermore, this relationship is stronger when investors are actively involved in politics, when local politicians are closer to the center of political power, for small firms that have a larger proportion of local investors, and for financially strong areas where investors are ready to execute investments in local stocks. Overall, our study shows that investors’ political sentiment is important in determining stock returns.
Disease‐related distress among adults with haemophilia: A qualitative study
Authors: Mattis Shanna , Barry Vaughn , Taylor Natalie , Lynch Mary Ellen , Tatum Katharine , Whitten Stephanie , Kempton Christine L. 
Published: October 2019

AbstractIntroductionDistress related to disease burden has been defined and described among people with chronic diseases including diabetes and cancer. In these populations, disease‐specific distress is associated with health outcomes. Haemophilia‐related distress is less understood.AimTo identify qualitative features of haemophilia‐related distress among affected adults to ultimately inform the creation of a measurement tool.MethodsAdults with haemophilia A or B associated with a large haemophilia treatment centre in the south‐eastern U.S. were recruited to participate in this qualitative study. Fifteen participants completed semi‐structured telephone interviews. Interviews lasted 1‐2 hours and explored experiences of distress related to various aspects of haemophilia. Interviews were audio taped, transcribed and coded using NVIVO, software for organizing, managing and analysing qualitative data. Coding was deductive and inductive, and the analysis was thematic.ResultsHaemophilia‐related distress was broadly related to feelings of isolation and vulnerability which incorporated health system factors, physical functioning, caretaker roles and psychological considerations. Specific features associated with haemophilia‐related distress included lack of trust in the knowledge of haemophilia and care provided by staff in community healthcare settings, concerns about the future such as health insurance access and ageing/disability, long‐standing feelings of being different from others and feeling like an outsider, treatment burdens and fear of acute bleeds. Protective factors included supportive relationships with family, friends and haemophilia care teams through which participants received practical and emotional support.ConclusionFeatures of haemophilia‐related distress were identified. Results will facilitate distress measurement and intervention efforts to reduce distress in adults with haemophilia.