bluuebunny/crossref_metadata_2025_split huggingface dataset:
Webrooming and showrooming: a multi-stage consumer decision process
Authors: Mukherjee Srabanti , Chatterjee Swagato 
Published: February 2021

PurposeThe purpose of this research is to propose and validate a theoretical framework explaining web-rooming and showrooming as a multi-stage decision-making process. The authors have used consumer purchase decision-making theories to propose a model that identifies showrooming and webrooming as a combination of two decisions, channel choice during information search and channel choice during actual purchase. Further, the authors explored how various antecedents of showrooming and webrooming have differential effects on various stages of a purchase decision-making process and how product type moderates the relationships.Design/methodology/approachThe authors have conducted empirical research, whereby 243 responses were obtained from a cross-sectional survey. The authors have used structural equation modeling and multiple regression analysis to validate our theoretical model.FindingsWebrooming or showrooming is a multi-stage decision-making process for the consumers. First, consumers decide whether to search online or offline and then whether to buy online and offline. Different individual, purchase context-related and channel related factors impact these decisions. Product type governs which variables will be more important than others.Originality/valueThe research looks to enhance the understanding of the consumer's decision-making process during showrooming and webrooming while also helping retailers design and implement appropriate strategies that could affect consumers during information search and actual purchase.
Market-oriented business model for SMEs' disruptive innovations internationalization
Authors: Sundström Agneta , Hyder Akmal S. , Chowdhury Ehsanul Huda 
Published: February 2021

PurposeThe aim of this study is to develop and evaluate a market-oriented business model (MOBM) and analyze how it contributes to internationalization of SMEs' disruptive innovation.Design/methodology/approachBased on market orientation literature, an MOBM is developed and assessed through collaboration among companies, researchers and networking partners. For the evaluation of the model, qualitative data was collected through workshops, interviews and participatory observations at four case SMEs. Methodologically, the implementation of the MOBM consists of a systematic knowledge development process by following four work packages to support the companies' market-oriented internationalization.FindingsThe results show that SMEs face internal barriers to developing innovativeness that hinder them from creating effective disruptive innovation for the international buyer chain. The study finds that SMEs need to work with an MOBM for developing market intelligence within the organization and seek external support for entering the international market.Practical implicationsThe methodological strength allows application, evaluation and modification of the MOBM in close collaboration with the SMEs that directly benefit from its implementation. Modifying the principles of market orientation by practical application, SMEs can apply the MOBM to analyze their internationalization capacity for high-tech disruptive innovations.Originality/valueThis article contributes to new thinking by introducing market orientation to SMEs' internationalization of disruptive innovation. The study highlights the less researched field of disruptive innovation by developing the MOBM to deal with SMEs' internationalization.
Deformations and stresses prediction of cantilever structures fabricated by selective laser melting process
Authors: Li Lan , Pan Tan , Zhang Xinchang , Chen Yitao , Cui Wenyuan , Yan Lei , Liou Frank 
Published: February 2021

PurposeDuring the powder bed fusion process, thermal distortion is one big problem owing to the thermal stress caused by the high cooling rate and temperature gradient. For the purpose of avoiding distortion caused by internal residual stresses, support structures are used in most selective laser melting (SLM) process especially for cantilever beams because they can assist the heat dissipation. Support structures can also help to hold the work piece in its place and reduce volume of the printing materials. The mitigation of high thermal gradients during the manufacturing process helps to reduce thermal distortion and thus alleviate cracking, curling, delamination and shrinkage. Therefore, this paper aims to study the displacement and residual stress evolution of SLMed parts.Design/methodology/approachThe objective of this study was to examine and compare the distortion and residual stress properties of two cantilever structures, using both numerical and experimental methods. The part-scale finite element analysis modeling technique was applied to numerically analyze the overhang distortions, using the layer-by-layer model for predicting a part scale model. The validation experiments of these two samples were built in a SLM platform. Then average displacement of the four tip corners and residual stress on top surface of cantilever beams were tested to validate the model.FindingsThe validation experiments results of average displacement of the four tip corners and residual stress on top surface of cantilever beams were tested to validate the model. It was found that they matched well with each other. From displacement and residual stress standpoint, by introducing two different support structure, two samples with the same cantilever beam can be successfully printed. In terms of reducing wasted support materials, print time and high surface quality, sample with less support will need less post-processing and waste energy.Originality/valueNumerical modeling in this work can be a very useful tool to parametrically study the feasibility of support structures of SLM parts in terms of residual stresses and deformations. It has the capability for fast prediction in the SLMed parts.
Exploring firm-community level trust in rural Africa through the lens of oil companies’ corporate social responsibilities
Authors: Meribe Nnaemeka Chidiebere , Ayentimi Desmond Tutu , Oke Benson Reuben , Adonteng-Kissi Obed 
Published: February 2021

Purpose
This paper aims to explore firm-community level trust in rural Africa through the lens of oil companies’ corporate social responsibilities (CSR).

Design/methodology/approach
This paper is grounded on a case study of local communities and other stakeholders in a Nigerian community exploring the underlying triggers of distrust and trust between oil companies and rural communities through the lens of CSR.

Findings
This exploratory study found the presence of high-level firm-community expectation differentials, pointing to considerable mistrust between local communities and oil companies’ CSR initiatives.

Practical implications
The local communities tend to feel oil companies attempt to secure social licence to operate by engaging in CSR initiatives but not to genuinely improve their welfare. There is, therefore, a superficial effort or incentive for oil companies to engage in CSR initiatives in rural Africa.

Originality/value
The paper highlights the notion that building a community-driven CSR requires a partnership in which local communities share legitimacy with government agencies and oil companies in influencing CSR initiatives. This represents the most effective way of enhancing firm-community level trust and social legitimacy in rural Africa.
Enhancing postgraduate researcher wellbeing through support groups
Authors: Panayidou Fryni , Priest Benjamin 
Published: February 2021

Purpose
This paper aims to examine the effectiveness of PhD support groups as an intervention that improves mental well-being and increases confidence in timely PhD completion.

Design/methodology/approach
Participants of six PhD support groups, which we co-facilitated, completed a survey at the start of the intervention and at the end of the eight weeks of attendance. The survey measured subjective well-being and confidence in completion using the Warwick-Edinburgh Mental Well-being Scale and statements from the Postgraduate Research Experience Survey (2017 and 2019). The final survey also included open-ended questions to identify the helpful factors of the intervention.

Findings
Participants’ subjective well-being scores increased considerably over the eight weeks of group attendance and improved from initial score ranges associated with risk of depression or psychological distress. As a result of feeling understood and supported by other group members, participants felt less isolated and anxious, were more satisfied with their life and work-life balance, and felt more confident about completing their PhD within the institutional time frame. The results confirm previous findings on the positive effects of social support and the relationship between poor well-being and attrition.

Practical implications
Support groups could form an integral part of university support as they increase well-being and could improve retention.

Originality/value
Existing literature mainly highlights factors that affect postgraduate researchers’ well-being, with limited research on innovative interventions. This paper investigates the impact of social support in a facilitated peer group that focuses on the emotional and psychological aspects of the PhD experience, rather than peer group learning or support with specific research tasks.
Bacterial dynamics of sugarcane silage in the tropics
Authors: Muraro Gisele Bonato , de Almeida Carvalho‐Estrada Paula , de Oliveira Pasetti Maximiliano Henrique , Santos Mateus Castilho , Nussio Luiz Gustavo 
Published: February 2021

SummaryThe objective of this study was to evaluate changes in the bacterial community in sugarcane silage, in distinct soil types along the storage period. We depicted the bacterial community associated with sugarcane, before and after ensiling, through a massive sequencing of the gene 16S rRNA using MiSeq platform. The ensilage process shifted the composition of the bacterial community from the heterofermentative lactic acid bacteriaLeuconostocto bacteria belonging to the generaAcinetobacter,RalstoniaandNovosphingobium. However, this shift did not convey statically significant differences in alfa diversity metrics. In addition, similarity percentage analysis showed that the bacterial Operational Taxonomic Units that were primarily responsible for the observed differences wereLeuconostoc,Pseudomonas,Acinetobacter,Ralstonia,Fructobacillus,Novosphingobium,Lactobacillus,BurkholderiaandClostridium sensu stricto 1. The storage period was the most important factor responsible for changes in the bacterial community of silages. Results confirmed that the type of soil did not influence the dissimilarity found among samples.
Colonization dynamics of Pantoea agglomerans in the wheat root habitat
Authors: Soluch Ryszard , Hülter Nils F. , Romero Picazo Devani , Özkurt Ezgi , Stukenbrock Eva H. , Dagan Tal 
Published: February 2021

SummaryPlants are colonized by microbial communities that have diverse implications for plant development and health. The establishment of a stable plant–bacteria interaction depends on a continuous coexistence over generations. Transmission via the seed is considered as the main route for vertical inheritance of plant‐associated bacteria. Nonetheless, the ecological principles that govern the plant colonization by seed endophytes remain understudied. Here we quantify the contribution of arrival time and colonization history to bacterial colonization of the wheat root. Establishing a common seed endophyte, Pantoea agglomerans, and wheat as a model system enabled us to document bacterial colonization of the plant roots during the early stages of germination. Using our system, we estimate the carrying capacity of the wheat roots as 108 cells g−1, which is robust among individual plants and over time. Competitions in planta reveal a significant advantage of early incoming colonizers over late‐incoming colonizers. Priming for the wheat environment had little effect on the colonizer success. Our experiments thus provide empirical data on the root colonization dynamics of a seed endophyte. The persistence of seed endophyte bacteria with the plant population over generations may contribute to the stable transmission that is one route for the evolution of a stable host‐associated lifestyle.
Impact of manipulation of glycerol/diol dehydratase activity on intestinal microbiota ecology and metabolism
Authors: Ramirez Garcia Alejandro , Zhang Jianbo , Greppi Anna , Constancias Florentin , Wortmann Esther , Wandres Muriel , Hurley Katherine , Pascual‐García Alberto , Ruscheweyh Hans‐Joachim , Sturla Shana J. , Lacroix Christophe , Schwab Clarissa 
Published: February 2021

SummaryGlycerol/diol dehydratases (GDH) are enzymes that catalyse the production of propionate from 1,2‐propanediol, and acrolein from glycerol. Acrolein reacts with dietary carcinogenic heterocyclic amines (HCA), reducing HCA mutagenicity, but is itself also an antimicrobial agent and toxicant. Gut microbial GDH activity has been suggested as an endogenous acrolein source; however, there is limited information on the potential of the intestinal microbiota to have GDH activity, and what impact it can have on the intestinal ecosystem and host health. We hypothesized that GDH activity of gut microbiota is determined by the abundance and distribution of GDH‐active taxa and can be enhanced by supplementation of the GDH active Anaerobutyricum hallii, and tested this hypothesis combining quantitative profiling of gdh, model batch fermentations, microbiota manipulation, and kinetic modelling of acrolein formation. Our results suggest that GDH activity is a common trait of intestinal microbiota shared by a few taxa, which was dependent on overall gdh abundance. Anaerobutyricum hallii was identified as a key taxon in GDH metabolism, and its supplementation increased the rate of GDH activity and acrolein release, which enhanced the transformation of HCA and reduced fermentation activity. The findings of this first systematic study on acrolein release by intestinal microbiota indicate that dietary and microbial modulation might impact GDH activity, which may influence host health.
Comprehensive transcriptome profiling reveals abundant long non‐coding RNAs associated with development of the rice false smut fungus, Ustilaginoidea virens
Authors: Tang Jintian , Chen Xiaoyang , Yan Yaqin , Huang Junbin , Luo Chaoxi , Tom Hsiang , Zheng Lu 
Published: February 2021

SummaryLong non‐coding RNAs (lncRNAs) play an important role in biological processes but regulation and function of lncRNAs remain largely unelucidated, especially in fungi. Ustilaginoidea virens is an economically important fungus causing a devastating disease of rice. By combining microscopic and RNA‐seq analyses, we comprehensively characterized lncRNAs of this fungus in infection and developmental processes and defined four serial typical stages. RNA‐seq analyses revealed 1724 lncRNAs in U. virens, including 1084 long intergenic non‐coding RNAs (lincRNAs), 51 intronic RNAs (incRNAs), 566 natural antisense transcripts (lncNATs) and 23 sense transcripts. Gene Ontology enrichment of differentially expressed lincRNAs and lncNATs demonstrated that these were mainly involved in transport‐related regulation. Functional studies of transport‐related lncRNAs revealed that UvlncNAT‐MFS, a cytoplasm localized lncNAT of a putative MFS transporter gene, UvMFS, could form an RNA duplex with UvMFS and was required for regulation of growth, conidiation and various stress responses. Our results were the first to elucidate the lncRNA profiles during infection and development of this important phytopathogen U. virens. The functional discovery of the novel lncRNA, UvlncNAT‐MFS, revealed the potential of lncRNAs in regulation of life processes in fungi.
Balance between geographic, soil, and host tree parameters to shape soil microbiomes associated to clonal oak varies across soil zones along a European North–South transect
Authors: Habiyaremye Jean de Dieu , Herrmann Sylvie , Reitz Thomas , Buscot François , Goldmann Kezia 
Published: February 2021

SummaryTree root‐associated microbiomes are shaped by geographic, soil physico‐chemical, and host tree parameters. However, their respective impacts on microbiome variations in soils across larger spatial scales remain weakly studied. We out‐planted saplings of oak clone DF159 (Quercus robur L.) as phytometer in four grassland field sites along a European North–South transect. After four years, we first compared the soil microbiomes of the tree root zone (RZ) and the tree root‐free zone (RFZ). Then, we separately considered the total microbiomes of both zones, besides the microbiome with significant affinity to the RZ and compared their variability along the transect. Variations within the microbiome of the tree RFZ were shaped by geographic and soil physico‐chemical changes, whereby bacteria responded more than fungi. Variations within both microbiomes of the tree RZ depended on the host tree and abiotic parameters. Based on perMANOVA and Mantel correlation tests, impacts of site specificities and geographic distance strongly decreased for the tree RZ affine microbiome. This pattern was more pronounced for fungi than bacteria. Shaping the microbiome of the soil zones in root proximity might be a mechanism mediating the acclimation of oaks to a wide range of environmental conditions across geographic regions.
Nematode biphasic ‘boom and bust’ dynamics are dependent on host bacterial load while linking dauer and mouth‐form polyphenisms
Authors: Renahan Tess , Lo Wen‐Sui , Werner Michael S. , Rochat Jacques , Herrmann Matthias , Sommer Ralf J. 
Published: February 2021

AbstractCross‐kingdom interactions involve dynamic processes that shape terrestrial ecosystems and represent striking examples of co‐evolution. The multifaceted relationships of entomopathogenic nematodes with their insect hosts and symbiotic bacteria are well‐studied cases of co‐evolution and pathogenicity. In contrast, microbial interactions in soil after the natural death of insects and other invertebrates are minimally understood. In particular, the turnover and succession of nematodes and bacteria during insect decay have not been well documented ‐ although it represents a rich ecological niche with multiple species interactions. Here, we utilize developmentally plastic nematodePristionchus pacificusand its associated scarab beetles as models. On La Réunion Island, we collected rhinoceros beetleOryctes borbonicus, induced death, and placed carcasses in cages both on the island and in a mock‐natural environment in the laboratory controlling for high spatial and temporal resolution. Investigating nematode population density and dispersal dynamics, we were able to connect two imperative plasticities, dauer and mouth form. We observed a biphasic ‘boom and bust’ dispersal dynamic of dauer larvae that corresponds to bacterial load on carcasses but not bacterial type. Strikingly, all post‐dauer adults have the predatory mouth form, demonstrating novel intricate interactions on decaying insect hosts. Thus, ecologically relevant survival strategies incorporate critical plastic traits.
Trends in US Alcohol Consumption Frequency During the First Wave of the SARS‐CoV‐2 Pandemic
Authors: McKetta Sarah , Morrison Christopher N. , Keyes Katherine M. 
Published: February 2021

BackgroundThe SARS‐CoV‐2 pandemic created disruptions and stressors which may have influenced alcohol consumption frequency trends. Varying COVID‐19 health burden and alcohol policies may have contributed to different consumption trends between states. The aim of this study is to assess trends in alcohol consumption and moderation by state of residence.MethodsWe examined trends in adult drinking days, during the first wave of the pandemic (March 10 to June 8) using longitudinal data from the Understanding America Study (N = 6,172 unique participants; N = 28,059 observations). Because state mandates were responsive to disease burden, we modeled the interaction of time by COVID‐19 burden, defined as whether the state had the median (or higher) daily incidence of COVID‐19 cases on the survey date, and state random effects. We controlled for individual sociodemographics, perceived personal/familial COVID‐19 burden, mental health symptomology, and risk avoidance.ResultsDrinking days increased throughout the duration (incidence risk ratio [IRR] for drinking per increase in one calendar day = 1.003, 95% CI 1.001, 1.004); trends were heterogeneous by disease burden, with individuals living in states with lower COVID‐19 burden increasing (IRR = 1.005, 95% CI 1.003, 1.007) faster than those living in states with higher COVID‐19 burden (IRR = 1.000, 95% CI 0.998, 1.002). Trends were heterogeneous between states, but there was no evidence of systematic geographic clustering of state trends.ConclusionsDrinking days increased during the first months of the COVID‐19 pandemic, particularly among residents of states with lower disease burden.
MPEP Lowers Binge Drinking in Male and Female C57BL/6 Mice: Relationship with mGlu5/Homer2/Erk2 Signaling
Authors: Huang Gan , Thompson Summer L. , Taylor Jane R. 
Published: February 2021

BackgroundMetabotropic glutamate receptor 5 (mGlu5) plays an important role in excessive alcohol use and the mGlu5/Homer2/Erk2 signaling pathway has been implicated in binge drinking. The mGlu5 negative allosteric modulator (NAM) 2‐methyl‐6‐(phenylethynyl)pyridine hydrochloride (MPEP) has been shown to reduce binge drinking in male mice, but less is known about its effect on female mice. Here, we sought to determine whether sex differences exists in the effects of MPEP on binge drinking and whether they relate to changes in the MPEP mGlu5/Homer2/Erk2 signaling.MethodsWe measured the dose–response effect of MPEP on alcohol consumption in male and female mice using the Drinking in the Dark (DID) paradigm to assess potential sex differences. To rule out possible confounds of MPEP on locomotion, we measured the effects of MPEP on locomotor activity and drinking simultaneously during DID. Lastly, to test whether MPEP‐induced changes in alcohol consumption were related to changes in Homer2 or Erk2 expression, we performed qPCR using brain tissue acquired from mice that had undergone 7 days of DID.Results30 mg/kg MPEP reduced binge alcohol consumption across female and male mice, with no sex differences in the dose–response relationship. Locomotor activity did not mediate the effects of MPEP on alcohol intake, but activity correlated with alcohol intake independent of MPEP. MPEP did not change the expression of Homer2 and Erk2 mRNA in the bed nucleus of the stria terminalis (BNST) or nucleus accumbens in mice whose drinking was reduced by MPEP, relative to saline. There was a positive relationship between alcohol intake and Homer2 expression in the BNST.ConclusionsMPEP reduced alcohol consumption during DID in male and female C57BL/6 mice but did not change Homer2/Erk2 expression. Locomotor activity did not mediate the effects of MPEP on alcohol intake, though it correlated with alcohol intake. Alcohol intake during DID predicted BNST Homer2 expression. These data provide support for the regulation of alcohol consumption by mGlu5 across sexes.