bluuebunny/crossref_metadata_2025_split huggingface dataset:
A multi-attribute model to optimize the price and composition of prepaid mobile Internet plans
Authors: Sohrabi Arya , Pishvaee Mir Saman , Hafezalkotob Ashkan , Bamdad Shahrooz 
Published: July 2020

PurposePrepaid mobile Internet is one of the most profitable services that are composed of multiple attributes. The overall utility of Internet service can be broken down into the sum of the utility of individual attribute levels. Based on the multi-attribute theory, rational consumers choose the service that yields the highest utility from a number of possible alternatives. Determining the optimal attribute levels that satisfy consumers' preferences and maximize the total revenue of the firm is a challenging multi-attribute decision problem for any mobile operator. When designing mobile Internet services, adopting a robust composition of services against different realizations of competitors' strategies can bring advantages for network operators. The purpose of this study is to determine the optimal attribute levels of prepaid mobile Internet packages with the aim of maximizing the total revenue of the firm by considering the paradigms of multi-attribute utility theory about consumer choices and the issue of uncertainty in counterpart services offered by the competitors.Design/methodology/approachThis paper formulates the problem of multi-attribute pricing and design of mobile Internet plans in a competitive environment by developing deterministic and robust scenario-based mathematical models and considering the paradigms of multi-attribute utility theory about consumer choices. The proposed robust scenario-based models are based on three different paradigms, including maximizing expected revenue, minimizing the negative deviation from expected revenue and minimizing the maximum regret. A comprehensive numerical analysis is conducted to evaluate and compare the efficiency of the proposed models.FindingsThe evaluations reveal that deploying recourse policy can result in higher revenue for the firm when facing uncertainty. By doing sensitivity analysis, this paper shows that consumer preferences for brand attribute and consumers' purchase frequency can influence the revenue of network operators.Originality/valueThis paper develops a novel deterministic multi-attribute product line design (PLD) model to address the problem of determining the price and composition of prepaid mobile Internet plans. Furthermore, the issue of uncertainty in counterpart services offered by the competitors is studied for the first time in the PLD literature.
Condition-based maintenance for major airport baggage systems
Authors: Koenig Frank , Found Pauline Anne , Kumar Maneesh , Rich Nicholas 
Published: July 2020

PurposeThe aim of this paper is to develop a contribution to knowledge that adds to the empirical evidence of predictive condition-based maintenance by demonstrating how the availability and reliability of current assets can be improved without costly capital investment, resulting in overall system performance improvementsDesign/methodology/approachThe empirical, experimental approach, technical action research (TAR), was designed to study a major Middle Eastern airport baggage handling operation. A predictive condition-based maintenance prototype station was installed to monitor the condition of a highly complex system of static and moving assets.FindingsThe research provides evidence that the performance frontier for airport baggage handling systems can be improved using automated dynamic monitoring of the vibration and digital image data on baggage trays as they pass a service station. The introduction of low-end innovation, which combines advanced technology and low-cost hardware, reduced asset failures in this complex, high-speed operating environment.Originality/valueThe originality derives from the application of existing hardware with the combination of edge and cloud computing software through architectural innovation, resulting in adaptations to an existing baggage handling system within the context of a time-critical logistics system.
Adapting research methodology during COVID-19: lessons for transformative service research
Authors: Dodds Sarah , Hess Alexandra Claudia 
Published: July 2020

PurposeCoronavirus disease 2019 (COVID-19) has created a challenging, yet opportunistic, environment in which to conduct transformative service research (TSR) and assess research methodology. The purpose of this paper is to evaluate and gain important new insights of a group interviewing method with vulnerable people and their support group, adapted and transferred online during COVID-19.Design/methodology/approachThis research examines the experiences of 35 participants (nine family groups composed of parents and young people), involved in a research project that explores a sensitive topic, youth alcohol consumption and family communication, that was moved online during lockdown. Researcher reflections on running group interviews face-to-face prior to COVID- 19 and online during lockdown are included in the data.FindingsThematic analysis of participant interviews and researcher reflections reveals four key benefits and three limitations of online group interviews with vulnerable people and their support group. The benefits include being comfortable, non-intrusive and safe; engaging and convenient; online communication ease and easy set-up. The limitations relate to lack of non-verbal communication, poor set-up, and privacy and access issues.Practical implicationsThe global environment is uncertain and being able to implement effective qualitative research online is essential for TSR and service research in the future. This paper provides a step by step procedure for an innovative online group interviewing technique that can be used by TSR and qualitative service researchers.Originality/valueConducting research during a pandemic has provided unprecedented insights into qualitative research approaches and methodology. This paper contributes to literature on service and TSR methodology by providing a framework for researchers to investigate vulnerable groups online in an effective, safe and non-intrusive way. The framework also has the potential to be applied to other service contexts.
Inclusive leadership and work engagement: the mediating role of procedural justice
Authors: Cenkci Ada Tuna , Bircan Tuba , Zimmerman Jeff 
Published: July 2020

PurposeThis paper aims to explore the relationship between inclusive leadership (IL) and employee work engagement (WE), as well as the mediating effect of procedural justice (PJ) on this relationship.Design/methodology/approachAn online, self-administered questionnaire was used to collect data. A total of 201 information technology (IT) professionals in Turkey participated in the study. The authors used structural equation modeling to analyze the collected data. The authors then used a series of nested model comparisons to test the hypothesized mediating relationship.FindingsThe outcomes suggest that IL is positively related to PJ while PJ is positively associated with WE. In addition, PJ mediates the relationship between IL and WE.Practical implicationsThe outcomes underline the importance of IL to effectively lead IT professionals. Organizational leaders can cultivate IL by demonstrating openness, availability and accessibility toward their employees and create work environments in which employees’ ideas are valued. Additionally, for employee PJ perceptions, organizations need to ensure that their procedures and policies are transparent and fair in terms of how decisions are made. Moreover, organizations can offer training to their IT managers on IL and PJ topics.Originality/valueThis study adds to the very scarce literature on IL. In addition, to the researchers’ knowledge, this is the first study to test the IL and PJ relationship. Furthermore, this is the first study to explore the concept of IL in the Turkish context. Moreover, the findings of this research can be beneficial for future theory development on IL in cross-cultural contexts.
Electronic participation via Facebook: the potential from Brazilian municipalities
Authors: Rodrigues Josevana de Lucena , Gomes Sérgio Castro , Borges Fabrício Quadros 
Published: July 2020

Purpose
This paper aims to measure the potential for electronic participation of Brazilian citizens via Facebook as social media, identifying latent factors that provide a favorable environment for such participation by Brazilian municipalities with more than 100,000 inhabitants. Based on these factors, the Potential Index for Electronic Participation (PIEP) of municipalities is calculated.

Design/methodology/approach
The theoretical discussion is based on the literature on electronic government and citizen participation. In the methodology, exploratory factor analysis and cluster analysis have been used to identify latent factors and to classify PIEP according to the clusters.

Findings
The results of the research point to serious regional discrepancies regarding the level of participation in social media, highlighting an urgent need for national e-government policies to be rethought from a regionalized point of view.

Originality/value
The research enhances understanding of the relation between sociodemographic indicators such as income, education, employment and those concerning the access to and effective use of social media technologies by citizens and local governments.
What comes to mind when you think of sustainability? Qualitative research with ZMET
Authors: Mauri Chiara 
Published: July 2020

Purpose
This paper aims to shed light on the demand side of sustainability, that is, on its perceived meaning. The goal is to understand how people think of sustainability, the concepts they evoke when they talk of sustainability and the images and symbols they use to explain these concepts.

Design/methodology/approach
This study uses a mixed method. First, ten individuals are interviewed using the Zaltman metaphor elicitation technique (ZMET), a protocol developed by Gerald Zaltman in the early 1990s. The concepts and categories emerging from the ZMET have been analyzed, integrated and classified to identify key dimensions.

Findings
Ten concepts related to sustainability are the most recurring in the ZMET: problems and solutions, individual behavior, environment and ecosystem, technologies and innovations, social fairness, food and nutrition, mobility, education and mindfulness, sustainable development and utopia/ideal world.

Research limitations/implications
Ten interviews is a small number to provide a comprehensive analysis of all the meanings of sustainability. To obtain a more complete picture, the number of interviews may need to be increased to 15–20.

Practical implications
The fact that the two concepts appearing with the highest frequency in the ZMETs are “problems and solutions” and “individual behavior” signals that though people understand that there are many problems to be solved in the world as it is now, even the single individual can contribute with his/her behavior.

Social implications
Sustainability is an issue that involves society as a whole; hence, its improvement requires concerted political action coordinated at the national and local levels. The key point of this action is education of people, to make them aware of what sustainability really is.

Originality/value
Although the literature on sustainability is rather abundant, extant literature has mainly focused on the supply/managerial side such as sustainable and responsible companies, corporate social responsibility and also sustainable tourism. This paper sheds some light on the more neglected side of the demand perspective.
Pathogenic implication of epidermal scratch injury in psoriasis and atopic dermatitis
Authors: Furue Kazuhisa , Ulzii Dugarmaa , Tanaka Yuka , Ito Takamichi , Tsuji Gaku , Kido‐Nakahara Makiko , Nakahara Takeshi , Furue Masutaka 
Published: July 2020

AbstractMechanical scratching, a common external stress affecting the skin, is induced by various causes, such as pruritus. Scratch injury to epidermal keratinocytes upregulates the production and release of chemokine (C‐C motif) ligand 20 (CCL20) in vitro, which selectively chemoattracts interleukin (IL)‐17A‐producing immune cells that express chemokine (C‐C motif) receptor 6 (CCR6). In IL‐17A‐dominant psoriasis, scratch‐induced CCL20 upregulation and subsequent accumulation of IL‐17A‐producing immune cells and CCR6+ mature dendritic cells may trigger the development of psoriatic lesions, a process known as the Koebner phenomenon. In IL‐4/IL‐13‐dominant atopic dermatitis, pruritus and subsequent scratching are the primary symptoms. Scratch‐induced CCL20 production from keratinocytes may explain why IL‐17A levels are also elevated in atopic dermatitis. In contrast, mechanical scratching is likely to negatively regulate IL‐13 signaling by upregulating the expression of IL‐13 receptor α2, which serves as a decoy receptor for IL‐13 in keratinocytes. In this review, we summarize current reports on topics related to the pathogenic role of epidermal scratch injury in psoriasis and atopic dermatitis.
Flowering phenology of a widespread perennial herb shows contrasting responses to global warming between humid and non‐humid regions
Authors: Song Zhuqiu , Fu Yongshuo H. , Du Yanjun , Li Lin , Ouyang Xuejun , Ye Wanhui , Huang Zhongliang 
Published: July 2020

Abstract

Plant phenology was assessed as one of the most key Essential Biodiversity Variables on species functional traits, which underpins a variety of aspects of ecosystem function and is a vital determinant of species distribution. Flowering phenology is one of the most sensitive indicators of the effects of recent climatic change. Understanding of intraspecific variation in phenological responses to climate change can contribute to the accurate prediction of phenology and the assessment of potential impacts of climate change on organisms. However, this intraspecific variation in phenological sensitivity in natural systems is still unclear, especially at large spatial scales.

Using the widespread perennial herb Spiranthes sinensis, we quantified intraspecific variation in phenological responses to warming among groups located along climatic gradients. Phenological data were derived from 1,681 collections of herbarium specimens and photographs across eastern Asia and southeastern Australia over the period 1902–2017 and spans eight humid and eight non‐humid regions.

We found that peak flowering dates of Spiranthe sinensis (FLss) showed substantial intraspecific variation in temperature sensitivity, ranging from −5.16 ± 1.13 to 4.16 ± 0.90 days/°C. Across all 16 regions, FLss exhibited the strongest delayed response to warming in southeastern Australia. Temperature sensitivity of the FLss was significantly correlated with annual precipitation and aridity index of a region, suggesting a possible role of declined water availability in reducing temperature sensitivity. Notably, contrasting phenological responses to warming were found between collections with different humidity regimes: humid regions generally flowered earlier (M: −3.57 days/°C) and non‐humid regions exhibited slightly delayed flowering (M: 1.25 days/°C).

These findings provide empirical evidence of substantial intraspecific variation in phenological sensitivity across large spatial scales, and highlights that soil water availability may play a key role in a warming planet, especially in non‐humid regions.
Cesarean birth and maternal morbidity among Black women and White women after implementation of a blended payment policy
Authors: Snowden Jonathan M. , Osmundson Sarah S. , Kaufman Menolly , Blauer Peterson Cori , Kozhimannil Katy Backes 
Published: July 2020

AbstractObjectiveTo test whether Minnesota's blended payment policy had differential effects on cesarean use and maternal morbidity among black women and white women in Minnesota, as compared to six control states.Data sources/study settingClaims data from births to Medicaid fee‐for‐service beneficiaries, 2006‐2012, in Minnesota (policy state) and six control states (Wisconsin, Iowa, Illinois, Oregon, Idaho, and Montana).Study designThe key study intervention was Minnesota's blended payment policy, which established one single payment rate for uncomplicated vaginal and cesarean births in 2009. The primary outcome was cesarean birth, and secondary outcomes were maternal morbidity (composite), postpartum hemorrhage, and chorioamnionitis. Policy effects were assessed using race‐stratified comparative interrupted time series analysis.Principal findingsFollowing policy implementation, cesarean use decreased among both black and white women in Minnesota compared to control states; this decline was larger among black women (−2.88 percent 3‐year cumulative decline, from a prepolicy cesarean rate of 22.2 percent) than among white women (−1.32 percent, P = .0013). Postpartum hemorrhage increased, with larger increases among black women (1.20 percent 3‐year cumulative increase), compared with white women (0.48 percent, P < .001) in Minnesota compared with control states.ConclusionsPolicy‐related declines in cesarean use after Minnesota's blended payment policy were larger in black women. Increases in postpartum hemorrhage signal potential unintended consequences of policy‐related cesarean reduction.
COVID‐19 in pregnancy: Placental and neonatal involvement
Authors: Prochaska Erica , Jang Minyoung , Burd Irina 
Published: July 2020

AbstractSince December 2019, severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) has caused over 12 million infections and more than 550 000 deaths.1 Morbidity and mortality appear partly due to host inflammatory response.2 Despite rapid, global research, the effect of SARS‐CoV‐2 on the developing fetus remains unclear. Case reports indicate that vertical transmission is uncommon; however, there is evidence that placental and fetal infection can occur.3‐7 Placentas from infected patients show inflammatory, thrombotic, and vascular changes that have been found in other inflammatory conditions.8,9 This suggests that the inflammatory nature of SARS‐CoV‐2 infection during pregnancy could cause adverse obstetric and neonatal events. Exposure to intrauterine inflammation and placental changes could also potentially result in long‐term, multisystemic defects in exposed infants. This review will summarize the known literature on the placenta in SARS‐CoV‐2 infection, evidence of vertical transmission, and possible outcomes of prenatal exposure to the virus.
Role of bone marrow‐derived mesenchymal stem cell defects in CD8+CD28– suppressor T‐lymphocyte induction in patients with immune thrombocytopenia and associated mechanisms
Authors: Li Huiyuan , Guan Yue , Sun Boyang , Dou Xueqing , Liu Xiaofan , Xue Feng , Fu Rongfeng , Zhang Lei , Yang Renchi 
Published: July 2020

AbstractMany immune dysfunctions participate in immune thrombocytopenia (ITP) pathogenesis, including numeric and functional defects in suppressor T (Ts) cells and immune‐regulation abnormalities in mesenchymal stem cells (MSCs). Recent studies showed that MSCs can promote Ts cell differentiation. Thus, we compared the Ts cell induction ability of bone marrow‐derived MSCs (BM‐MSCs) between patients with ITP and normal controls (NCs), and examined the mechanism of this difference. Co‐culture of CD8+ T cells with BM‐MSCs revealed that BM‐MSCs elevated Ts cell percentage and function, but the efficiency was lower in patients with ITP than in NCs. Blockade experiments showed that blockade of interleukin 6 (IL‐6) partially reversed Ts cell induction by BM‐MSCs. Addition of exogenous IL‐6 down‐regulated Ts cell apoptosis. Moreover, BM‐MSCs enhanced IL‐10 secretion and inhibition ability of Ts cells. IL‐6 secretion, regulatory abilities of IL‐10 expression in Ts cells, and the enhanced efficiency of Ts cells inhibition function by BM‐MSCs were all decreased in patients with ITP. All‐trans retinoic acid preconditioning promoted BM‐MSC induction of Ts cell percentages and umbilical cord‐derived (UC) MSCs efficiently improved ITP Ts cell numbers and dysfunction. In conclusion, defects of BM‐MSCs in Ts cell induction are involved in ITP pathogenesis, and exogenous UC‐MSCs may be useful for ITP therapy.
Comparing story reading and video watching as two distinct forms of vicarious contact: An experimental intervention among elementary school children
Authors: Cocco Veronica Margherita , Bisagno Elisa , Di Bernardo Gian Antonio , Cadamuro Alessia , Riboldi Sara Debora , Crapolicchio Eleonora , Trifiletti Elena , Stathi Sofia , Vezzali Loris 
Published: July 2020

Research has shown that vicarious contact, that is observing an interaction between ingroup and outgroup members, can improve intergroup relations. Although vicarious contact has been operationalized in different ways, mainly via story reading or video watching, an experimental comparison of these different strategies is still missing. We conducted a school intervention with the aim of comparing the two most used forms of vicarious contact, namely story reading and video watching. Elementary schoolchildren without disabilities (N = 292) were assigned to one of three different conditions: reading a story; watching a video; control. In the two vicarious contact conditions, participants read or watched the story of a child with disability becoming friends with children without disabilities; in the control condition, participants only completed the dependent measures. Results revealed that, in general, both vicarious contact conditions were equally effective in improving outgroup attitudes and behavioural intentions. In addition, they operated with the same strength through the same underlying processes (IOS, ingroup norms). We discuss theoretical and practical implications in the context of vicarious contact as a prejudice‐reduction intervention.
Repeated social defeat stress induces neutrophil mobilization in mice: maintenance after cessation of stress and strain‐dependent difference in response
Authors: Ishikawa Yuka , Kitaoka Shiho , Kawano Yuko , Ishii Shinichi , Suzuki Tomohide , Wakahashi Kanako , Kato Taro , Katayama Yoshio , Furuyashiki Tomoyuki 
Published: July 2020

Background and PurposeInflammation has been associated with stress‐related mental disturbances. Rodent studies have reported that blood‐borne cytokines are crucial for stress‐induced changes in emotional behaviours. However, the roles and regulation of leukocytes in chronic stress remain unclear.Experimental ApproachAdult male C57BL/6N mice were subjected to repeated social defeat stress (R‐SDS) with two protocols which differed in stress durations, stress cycles, and housing conditions, followed by the social interaction test. The numbers of leukocyte subsets in the bone marrow, spleen, and blood were determined by flow cytometry shortly after or several days after R‐SDS. These leukocyte changes were studied in two strains of mice with different stress susceptibility, C57BL/6N and BALB/c mice.Key ResultsR‐SDS with both protocols similarly induced social avoidance in C57BL/6N mice. In the bone marrow, neutrophils and monocytes were increased, and T cells, B cells, NK cells, and dendritic cells were decreased with both protocols. In the blood, neutrophils and monocytes were increased with both protocols, whereas T cells, B cells, NK cells, and dendritic cells were decreased with one of these. Neutrophils and monocytes were also increased in the spleen. Changes in the bone marrow and increased levels of circulating neutrophils were maintained for 6 days after R‐SDS. BALB/c mice showed greater social avoidance and increase in circulating neutrophils than C57BL/6N mice.Conclusion and ImplicationsIn two strains of mice, chronic stress induced neutrophil mobilization and its maintenance. These effects were strain‐related and may contribute to the pathology of mental illness.LINKED ARTICLESThis article is part of a themed issue on Neurochemistry in Japan. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.4/issuetoc