bluuebunny/crossref_metadata_2025_split huggingface dataset:
Understanding social media users’ unfollow intentions: take WeChat subscriptions as an example
Authors: Zhang Ge , Ma Liang , Zhang Xin , Ding Xiao Yan , Yang Yi Ping 
Published: November 2019

Purpose
An increasing number of users join and become immersed in WeChat official accounts, but many users quit using these services as well. Nevertheless, most of the previous studies mainly focussed on the usage behavior. The purpose of this paper is to fill the gap by examining factors affecting users’ unfollow intentions for WeChat subscriptions in a Chinese context.

Design/methodology/approach
Structural equation modeling is used in our study. A field survey with 260 WeChat users is conducted to test the research model and hypotheses.

Findings
The results show the following interesting key findings: first, the effect of actual cost on users’ unfollow intentions is larger than the effect of opportunity cost; second, users’ unfollow intentions will decrease with the increase of users’ perceptions of information usefulness; third, the results of the control variables showed that only landing frequency has a negative effect on users’ unfollow intentions; and fourth, users’ demographic differences are also examined in regard to how they may affect users’ unfollow intentions.

Originality/value
First, this paper studies factors influencing users’ unfollow intentions for WeChat subscriptions from a social exchange theory perspective; the authors considered both extraneous factors and users’ internal perception factors potentially affecting users’ unfollow intentions, which has rarely been researched. Furthermore, the authors examined significant differences among users’ demographic characteristics in affecting users’ unfollow intentions. The results of the study provide a more comprehensive understanding of the influencing factors of users’ unfollow intentions.
Fostering sustainability and competitiveness in European tourism
Authors: Santander Eduardo 
Published: November 2019

Purpose
This paper aims to explore sustainable tourism in Europe in economic, socio-cultural and environmental dimensions as well as discuss key challenges and necessary steps to be taken by the national tourism organisations.

Design/methodology/approach
The author takes a look at the evolution and importance of sustainable development for the travel and tourism industry today.

Findings
Last year Europe reached another record of international tourist arrivals, resulting in a 6 per cent increase on the previous year’s performance. Factors that contributed to this development include the recovery of major source markets, marketing efforts in promoting travel offseason as well as themed promotional activities in third markets. However, the European tourism industry is facing increasing challenges, in particular, those related to the quest between sustainable practices and the need for increasing competitiveness as a global destination.

Originality/value
This paper provides a current view of how sustainable tourism in Europe became a key global challenge.
Sustainability communication in hospitality in peripheral tourist destinations
Authors: Santos Margarida Custódio , Veiga Célia , Águas Paulo , Santos José António C. 
Published: November 2019

Purpose
The purpose of this study posited that tourism companies and more especially hotels located in tourist destinations dependent on air transportation, need to commit more strongly to sustainability because of their greater distance from the main outbound markets. The research focused on determining whether hotels’ star rating, location, age and size influence their sustainability communication and on identifying the characteristics of the messages used in hotels’ sustainability communication.

Design/methodology/approach
To accomplish these objectives, a sequential mixed methods design with three interconnected phases was used, including quantitative data and content analysis.

Findings
Less than 10% of hotels located in a tourist destination strongly dependent on air transportation and peripheral to the main outbound markets actually communicate about sustainable practices on their websites. Communication practices are dependent on hotels’ star rating, location, size and age.

Research limitations/implications
The study limitations are that it was conducted in only one destination and that the hotel websites’ layouts are heterogeneous, which means that the analysis and comparison of the relevant information is extremely challenging. In addition, the research only considered hotels or similar lodgings, leaving out other types of accommodation.

Practical implications
Hotels in tourist destinations dependent on air transportation need to adjust their sustainability communication in response to the trend among tourists toward greater consciousness about the environmental impacts of their individual tourism-related choices. Hotels also need to provide more accurate and detailed information on sustainable practices, with both affective and rational appeals that focus on tourists’ experiences.

Originality/value
The study was conducted in a destination dependent on air transportation and peripheral to the primary outbound markets.
How much do rare and crop‐pollinating bees overlap in identity and flower preferences?
Authors: MacLeod Molly , Reilly James , Cariveau Daniel P. , Genung Mark A. , Roswell Michael , Gibbs Jason , Winfree Rachael 
Published: November 2019

Abstract

The biodiversity‐centred approach to conservation prioritizes rare species, whereas the ecosystem services approach prioritizes species that provide services to people. The two approaches align when rare species provide ecosystem services, or when both groups of species benefit from the same management action. We use data on bee pollinators and the plant species they forage on to determine if there are rare species among the most important crop pollinators, and the extent to which plant species selected to support crop pollinators would support rare species as well.

We used pre‐existing, regional‐scale datasets to determine which bee species are regionally rare, and which are regionally important crop pollinators. To assess the plant preferences of these two groups of bee species, we collected two datasets on plant–pollinator interactions, one experimental and one observational. The experiment consisted of monospecific plots of 17 plant species from which we collected bees over 3 years. The observational data consisted of bees collected from 66 species of plants growing in semi‐natural meadows, also over 3 years.

Nineteen percent of the dominant crop‐pollinating species were regionally rare. Both rare species and crop‐pollinating species had strong preferences for certain plants, and the preferences of rare and crop‐pollinating bees were significantly but not strongly (r ≤ .54) correlated. Ten plant species were significantly preferred by both rare and crop‐pollinating bees.

Synthesis and applications. We found several dominant crop pollinators that are rare at a regional scale, supporting the idea that rare species can be important providers of ecosystem services. The flower preferences of rare and crop‐pollinating bees are significantly positively associated, suggesting that plants chosen to support crop pollinators will benefit rare species as well. We identify plant species that are preferred by regionally rare bees and by crop pollinators, including 10 plant species preferred by both types of bees, and recommend these for use in pollinator habitat plantings.
Contribution of small isolated habitats in creating refuges from biological invasions along a geomorphological gradient of floodplain waterbodies
Authors: Ishiyama Nobuo , Miura Kazuki , Yamanaka Satoshi , Negishi Junjiro N. , Nakamura Futoshi 
Published: November 2019

Abstract

Habitat fragmentation, which involves habitat size reduction and isolation, is a major cause of biodiversity decline. However, interest in small isolated habitats has increased among ecosystem managers because these fragments can serve as remnant refuges for unique and/or endangered species in human‐altered landscapes.

In a fragmented floodplain of northern Japan, we demonstrate how habitat fragmentation and habitat quality shape the refuges for a unique endangered minnow Rhynchocypris percnurus sachalinensis from biological invasions. We focused on two invasive minnows, topmouth gudgeon Pseudorasbora parva and rosy bitterling Rhodeus ocellatus ocellatus, which are the dominant invasive species. By using a graph theoretical approach and structural equation modelling, we elucidated the relationships among habitat fragmentation, habitat quality and the abundance of invasive minnows with the endangered swamp minnow.

We found that the invasion of topmouth gudgeon, which has a high mobility and environmental tolerance, negatively affected swamp minnow populations. The invasive species may outcompete the native species in their overlapping trophic niche.

Analyses indicated that habitat fragmentation (decreasing habitat size and connectivity) indirectly and positively affected the population abundance of swamp minnow by reducing the potential for invasion by topmouth gudgeon. We further found an interaction between the indirect effects of habitat fragmentation and local habitat quality: the indirect effects became more apparent in the relatively deeper habitats that were of better quality for natives. This result was likely attributed to the strong control effect of the abiotic stressor. Interspecific competition between the two minnows would be masked in shallow ponds because the native populations are primarily restricted by the abiotic factor, and its abundance is inherently limited regardless of pressure by invaders.

Synthesis and applications. In fragmented landscapes, evenly conserving all small fragments within a limited budget is difficult. The change in importance of small isolated ponds across a pond‐depth gradient suggests that conservation priorities for small fragments should be established by considering local habitat quality. Our findings do not justify habitat fragmentation but suggest that both landscape‐scale and local‐scale perspectives synergistically aid in the management of biological invasions in modified habitat networks.
Host selection of hematophagous leeches (Haemadipsa japonica): Implications for iDNA studies
Authors: Hanya Goro , Morishima Kaori , Koide Tomoya , Otani Yosuke , Hongo Shun , Honda Takeaki , Okamura Hiroki , Higo Yuma , Hattori Masamichi , Kondo Yuki , Kurihara Yosuke , Jin Sakura , Otake Aji , Shiroisihi Izumi , Takakuwa Tomomi , Yamamoto Hiroki , Suzuki Hanami , Kajimura Hisashi , Hayakawa Takashi , Suzuki‐Hashido Nami , Nakano Takafumi 
Published: November 2019

AbstractThe development of an efficient and cost‐effective method for monitoring animal populations or biodiversity is urgently needed, and invertebrate‐derived DNA (iDNA) may offer a promising tool for assessing the diversity and other ecological information of vertebrates. We studied the host species of a hematophagous leech (Haemadipsa japonica) in Yakushima by genetic barcoding and compared the results with those for mammal composition revealed by camera trapping. We analyzed 119 samples using two sets of primers by Sanger sequencing and one set of primer by next generation sequencing. The proportion of the samples that were successfully sequenced and identified to at least one species was 11.8–24.3%, depending on the three different methods. In all of these three methods, most of the samples were identified as sika deer (18/20, 6/15 and 16/29) or human (2/20, 7/15 and 21/29). The nonhuman mammal host species composition was significantly different from that estimated by camera trapping. Sika deer was the main host, which may be related with their high abundance, large body size and terrestriality. Ten samples included DNA derived from multiple species of vertebrates. This may be due to the contamination of human DNA, but we also found DNA from deer, Japanese macaque and a frog in the same samples, suggesting the mixture of the two meals in the gut of the leech. Using H. japonica‐derived iDNA would not be suitable to make an inventory of species, but it may be useful to collect genetic information on the targeted species, due to their high host selectivity.
Migrant Age Profiles and Long‐Run Living Standards in Australia
Authors: Parr Nick , Guest Ross 
Published: November 2019

AbstractThe age profile of immigration to Australia can be altered by public policies. This article applies a method of valuing long term population paths in order to evaluate alternative immigrant age profiles based on a proxy indicator of living standards over time for Australia. Results show that the variation in value of the population path follows an inverted U‐shape by immigrant's age. The strength of preference between immigrants aged 20–29 years and older working age immigrants reduces as the social discount rate increases. Higher life expectancy and lower fertility accentuate preference for younger working age immigrants.
Cost of chronic inflammatory disease: The impact of eosinophilic esophagitis in Nevada
Authors: Anderson Julia , Moonie Sheniz , Hogan Mary Beth , Scherr Rebecca , Labus Brian , Word Jessica 
Published: November 2019

ObjectivesThe cost of treating the rare eosinophilic esophagitis (EoE) disease and its impact on patients’ quality of life have not been well documented in the literature. This study seeks to fill this gap by comparing the cost of EoE with other well‐known inflammatory diseases, including Crohn's disease (CD) and celiac disease (CeD).MethodsA Mann‐Whitney U test and multiple logistic regression were used to examine the cost of EoE in the state of Nevada across all hospital settings and its impact on quality of life compared with CD and CeD.ResultsSeveral factors were associated with the overall cost of EoE in Nevada, including patients’ age, sex and region (P < 0.001). EoE was significantly more expensive to treat in the pediatric group ($4001 EoE; $985 CD; $856 CeD), among men ($2532 EoE; $1500 CD; $1724 CeD), among those residing in the southern region of Nevada ($4501 EoE; $2538 CD; $1888 CeD), and among patients seeking medical care from outpatient clinics ($3298 EoE; $741 CD; $1686 CeD) (P < 0.001). Age, sex, region and hospital setting were all associated with having a positive EoE record compared with CeD or CD (P < 0.001).ConclusionsData from this study indicate that the EoE burden is significantly higher in cost for certain demographics and regions compared with CD and CeD in the state of Nevada, specifically among pediatric and male patients. These differences suggest that clinicians may encounter similar issues when treating EoE.
Prevalence of endoscopic improvement and remission according to patient‐reported outcomes in ulcerative colitis
Authors: Dulai Parambir S. , Singh Siddharth , Jairath Vipul , Ma Christopher , Narula Neeraj , Vande Casteele Niels , Peyrin‐Biroulet Laurent , Vermeire Severine , D’Haens Geert , Feagan Brian G. , Sandborn William J. 
Published: November 2019

SummaryBackgroundTreatment targets for ulcerative colitis are evolving towards achievement of endoscopic improvement and remission in addition to symptom resolution. It remains to be accurately quantified what proportion of patients with symptom resolution have residual endoscopic activity that might warrant treatment modification.AimTo quantify the prevalence of endoscopic improvement and remission amongst ulcerative colitis patients with various permutations of patient‐reported outcomes.MethodsIndividual participant data from active intervention and placebo arms of clinical trials of infliximab, golimumab, vedolizumab and tofacitinib were pooled to estimate the prevalence of endoscopic improvement (Mayo endoscopic sub‐score [MES] 0 or 1) and remission (MES 0) scores with various permutations of the rectal bleeding sub‐score (RBS) and stool frequency sub‐score (SFS) of the Mayo score, following induction (6‐8 weeks) and maintenance (30‐54 weeks) therapy. Subgroup analyses were performed by year of publication and centrally read endoscopy scoring.ResultsData from 2586 trial participants were analysed. Using locally scored endoscopy, the prevalence of endoscopic improvement and remission was highest among participants with a RBS 0 + SFS 0 post‐induction (MES 0/1:81%, [95% CI 78‐84]; MES 0:29% [26‐33]) and during maintenance (MES 0/1:91% [87‐93]; MES 0:57% [52‐62]). Prevalence estimates were lower for more recently performed trials (P < .01). In comparison to locally scored endoscopy, when using central endoscopy scoring, the prevalence of endoscopic improvement and remission was lower post‐induction (MES 0/1 57% [50‐64], P < .001; MES 0 15% [11‐21], P = .09) and during maintenance (MES 0/1 74% [67‐81], P = .001; MES 0 31% [24‐38], P = .001) for participants achieving a RBS 0 + SFS 0.ConclusionsApproximately 8 of 10 patients with normalisation of rectal bleeding and stool frequency have improvement in endoscopic disease activity, whereas approximately only half of these patients have endoscopic remission.
Forms, interactions, and responses to social support: A qualitative study of support and adherence to photoprotection amongst patients with Xeroderma Pigmentosum
Authors: Walburn Jessica , Anderson Rebecca , Morgan Myfanwy 
Published: November 2019

ObjectivesSocial support influences adherence to treatment in chronic illness, but there is uncertainty about its facilitators and constraints. This study explored the forms, processes, and responses associated with mobilization of informal support across three life contexts amongst patients with Xeroderma Pigmentosum (XP), a condition requiring rigorous photoprotection to reduce cancer risks.DesignQualitative interview study.MethodsA total of 25 adults with XP participated in semi‐structured interviews conducted face to face. An inductive thematic analysis was applied using a framework approach.ResultsPractical support, involving both assistance with recommended photoprotection and adjusting daily activities to reduce exposure, was the key form of support provided by family and friends. However, responses to this support differed with two groups identified based on the relative priority given to photoprotection in daily life and processes of disclosure. For ‘positive responders’, support aligned with their own priorities to photoprotect, conveyed feelings of being cared‐for and was facilitated by talking openly. In contrast, for ‘negative responders’ support conflicted with their priority of living ‘normally’ and their limited disclosure hindered receipt of helpful support in personal, clinic, and work interactions. Fears of workplace stigma also reduced disclosure amongst participants open in other contexts.ConclusionsPractical support conveyed psychosocial support with positive effects on adherence. This suggests the traditional separation into practical and emotional support is overly simplistic, with measures potentially missing important aspects. Interactional processes contribute to the effects of support, which can be addressed by targeting disclosure, stigma, and other barriers at individual and organizational levels.
Statement of contribution

What is already known on this subject?

Social support can be both a facilitator and a hindrance to treatment adherence.

Practical support is identified as the most important form of support in the context of adherence.

The processes of support underpinning its relationship to adherence are unclear.

What does this study add?

Variations in the provision and impacts of support are influenced by participants’ disclosure and attitudes to photoprotection, with two key groups comprising ‘positive responders’ and ‘negative responders’.

The influence of emotional support on adherence may be underestimated through neglect of the ways in which practical support often conveys feelings of being valued and cared‐for.

Barriers to mobilizing effective adherence support extends across life spheres, with fears of stigma and discrimination in work settings highlighting the need to intervene at individual and organizational levels.
A national study of artificial urinary sphincter and male sling implantation after radical prostatectomy in England
Authors: Dosanjh Amandeep , Baldwin Simon , Mytton Jemma , King Dominic , Trudgill Nigel , Belal Mohammed , Patel Prashant 
Published: November 2019

ObjectivesTo consider the provision of post‐radical prostatectomy (RP) continence surgery in England.Materials and MethodsPatients with an Office of Population Census and Surveys Classification of Interventions and Procedures, version 4 code for an artificial urinary sphincter (AUS) or male sling between 1 January 2010 and 31 March 2018 were searched for within the Hospital Episode Statistics (HES) dataset. Those without previous RP were excluded. Multivariable logistic regressions for repeat AUS and sling procedures were built in stata. Further descriptive analysis of provision of procedures was performed.ResultsA total of 1414 patients had received index AUS, 10.3% of whom had undergone prior radiotherapy; their median follow‐up was 3.55 years. The sling cohort contained 816 patients; 6.7% of these had received prior radiotherapy and the median follow‐up was 3.23 years. Whilst the number of AUS devices implanted had increased each year, male slings peaked in 2014/2015. AUS redo/removal was performed in 11.2% of patients. Patients in low‐volume centres were more likely to require redo/removal (odds ratio [OR] 2.23 95% confidence interval [CI] 1.02–4.86; P = 0.045). A total of 12.0% patients with a sling progressed to AUS implantation and 1.3% had a second sling. Patients with previous radiotherapy were more likely to require a second operation (OR 2.03 95% CI 1.01–4.06; P = 0.046). Emergency re‐admissions within 30 days of index operation were 3.9% and 3.6% fewer in high‐volume centres, for AUS and slings respectively. The median time to initial continence surgery from RP was 2.8 years. Increased time from RP conferred no reduced risk of redo surgery for either procedure.ConclusionThere is a volume effect for outcomes of AUS procedures, suggesting that they should only be performed in high‐volume centres. Given the known impact of incontinence on quality of life, patients should be referred sooner for post‐prostatectomy continence surgery.
The state must compete: Optimal pricing of legal cannabis
Authors: Childs Jason , Stevens Jason 
Published: November 2019

AbstractWe examine the socially optimal pricing strategy for the legal cannabis industry that faces significant competition from an illicit market. We explore the impact of different preferences for legal and illicit cannabis using a constant elasticity of substitution utility function. We find that under a range of policy objectives and other circumstances, the socially optimal pricing strategy is for the legal market price to be dramatically lower than the illicit market price. This contradicts the approach taken across Canada in the year since legalization. These findings suggest that governments should adopt policies to reduce the price of legal cannabis.