bluuebunny/crossref_metadata_2025_split huggingface dataset:
From behaviour to complex communities: Resilience to anthropogenic noise in a fish-induced trophic cascade
Authors: Rojas Emilie , Gouret Mélanie , Agostini Simon , Fiorini Sarah , Fonseca Paulo , Lacroix Gérard , Médoc Vincent 
Published: July 2022

SUMMARYSound emissions from human activities represent a pervasive environmental stressor. Individual responses in terms of behaviour, physiology or anatomy are well documented but whether they propagate through nested ecological interactions to alter complex communities needs to be better understood. This is even more relevant for freshwater ecosystems that harbour a disproportionate fraction of biodiversity but receive less attention than marine and terrestrial systems. We conducted a mesocosm investigation to study the effect of chronic exposure to motorboat noise on the dynamics of a freshwater community including phytoplankton, zooplankton, and roach as a planktivorous fish. As expected under the trophic cascade hypothesis, roach predation induced structural changes in the planktonic communities. Surprisingly, although roach changed their feeding behaviour in response to noise, the dynamics of the roach-dominated planktonic communities did not differ between noisy and noiseless mesocosms. This suggests that the top-down structuring influence of roach on planktonic communities might be resilient to noise and reveals the difficulties on extrapolating impacts form individual responses to complex communities.
Public procurement of engineering services: the influence of task characteristics on organisational control
Authors: Granheimer Klara , Karrbom Gustavsson Tina , Eriksson Per Erik 
Published: July 2022

PurposePrior research has emphasised the importance of the early phases of construction projects, as well as the difficulties of procuring engineering services – especially due to the uncertainties. Despite that, studies on the public procurement of engineering services are scarce. Although scholars have shown that uncertainty may affect the choice of control modes, the level of uncertainty that characterises services is not addressed by the two task characteristics: knowledge of the transformation process and output measurability. The purpose is to investigate organisational control in public procurement of engineering services.Design/methodology/approachThe existing control model was adjusted in this study by conceptually adding uncertainty as a third aspect to the two task characteristics. A single case study of the Swedish Transport Administration was used. The empirical data, comprising 14 interviews with managers from the client and engineering consulting companies, were analysed using flexible pattern matching and visual mapping approaches and then illustrated using the model.FindingsThe public client did not base its choice of control modes on uncertainty, but rather on the other two task characteristics. Consequently, the service providers argued that the chosen control modes reduced their creativity, increased their financial risks and caused unclear responsibilities. This study therefore shows that uncertainty is an important factor to consider in the choice of control modes, both from a theoretical perspective and from the service providers' point of view. The developed model may therefore be useful for researchers as well as practitioners.Originality/valueThis study is the first attempt to add uncertainty as a task characteristic when choosing control modes. The results contribute to the scarce control literature regarding the procurement of engineering services for construction projects and the procurement of other services with high uncertainty.
Factors determining housing prices: empirical evidence from a developing country’s Pakistan
Authors: Azam Khan Muhammad , Ali Niaz , Khan Himayatullah , Yien Lim Chia 
Published: July 2022

PurposeThis study aims to explore empirically the impact of various factors/determinants on housing prices at the country level as well as in Lahore, the most populous metropolitan city of the most populous province Punjab, Pakistan.Design/methodology/approachThis study uses monthly data ranging from 2013M1 to 2020M1 on variables used in the study. Based on the stationarity results, the method of robust least square is used as an estimation technique. The validity of initial results is also authenticated by canonical cointegration regression.FindingsThe empirical result reveals that all included variables significantly affect housing prices both at country level as well as in Lahore. This study found negative impact of regressor age, real exchange rate and urbanization on housing prices, whereas the positive impact of gross domestic product (GDP) per capita, foreign remittances, broad money and real interest rate on housing prices in the case of Pakistan was found. On the other hand, results unveiled the negative impact of regressor age (proportion of population aged between 15 and 64), real exchange rate and urbanization on housing prices, whereas the positive impact of GDP per capita, foreign remittances, broad money and real interest rate on housing prices in Lahore metropolitan city was unveiled.Originality/valueBased on the extant literature survey, this is a more holistic study of its kind that uncovers the macroeconomic determinants by considering the demand side, supply side and demographic factors of escalated housing prices in Pakistan, so that proper policies can be adopted to keep the housing sector stable. Empirical findings are helpful to acquire an enhanced understanding of how the housing price is determined and form a base for government to tackle the housing affordability problem.
Framing digital competence in media work – The case of Finland
Authors: Parkatti Anne , Saari Tiina , Tammelin Mia , Villi Mikko 
Published: July 2022

PurposeThis article aims to study digital competence (DC) in media work.Design/methodology/approachThe authors utilize frame analysis to investigate how DC is framed in media work using 30 semi-structured interviews as data with journalists in Finland.FindingsThe authors identify three main frames of DC in the context of media work. The individual attitude frame emphasizes employees' attitudes toward DC, the team-level support frame underlines the need for support in the work community and the organizational-level practice frame highlights enablers of and organizations' requirements for digital competence.Practical implicationsFirst, media workers' DC is necessary to enhance work efficiency and accomplish tasks and may be supported with supportive management practices. Second, the findings suggest that DC should be understood and analyzed as a multi-level issue. Third, the findings suggest that appropriate continuing education and study opportunities were needed. Besides formal arrangements for learning, informal contexts of learning are important.Originality/valueThe article contributes to media studies and studies on the digitalization of work by taking account of the organizational, team and individual levels in discussing digital competence in the news media sector.
Exploring digital natives' mobile addiction syndrome in Taiwan: psychological issues and beyond
Authors: Chen Wenshin 
Published: July 2022

PurposeThis study seeks to explore digital natives' mobile usage behaviors and, in turn, develop an analytic framework that helps articulate the underlying components of mobile addiction syndrome (MAS), its severity levels and mobile usage purposes.Design/methodology/approachThe investigation adopts a survey method and a case study. The results of the former are based on 411 random classroom observations and 205 questionnaire responses, and the insights of the latter are derived from 24 interviews and daily observations.FindingsThe findings validate five distinctive signs that constitute MAS and their significant correlations with each of the Big Five personality traits. Classroom observations confirm the prevalence of addiction tendency among digital natives in the research context. Seven levels of MAS and six different mobile usage purposes further manifest themselves from case analysis. There appears to be a sharp contrast between the addicted and non-addicted groups in their mobile purposes and behavioral patterns. Additionally, family relationships seem influential in shaping non-addictive mobile usage behaviors.Research limitations/implicationsPsychological perspectives on MAS may be important but insufficient. Empirical investigation on a global scale, especially with distinctive cross-cultural comparisons, will be highly encouraged. How MAS evolves over time should also serve as future research interests.Practical implicationsTeaching pedagogy of college education might need certain adjustments to intrigue digital natives' learning interests. Future managers might also need to adopt better performance measurements for digital natives who barely separate work from personal matters in their mobile devices.Social implicationsParents and healthcare institutions may need to develop response mechanism to tackle this global issue at home and in society. The long-term effects of the COVID-19 pandemic on MAS might also deserve global attention.Originality/valueThe analytic framework developed provides an original mechanism that can be valuable in identifying MAS severity and associated behavioral patterns.
What property attributes are important to UK university students in their online accommodation search?
Authors: Oladiran Olayiwola , Sunmoni Adesola , Ajayi Saheed , Guo Jiarong , Abbas Muhammad Azeem 
Published: July 2022

PurposeThis paper examines the categories of property attributes that are important to UK university students in their online accommodation search. It also analyses the volume of information displayed regarding the property attributes and explores the influence of some of the information provided on the attractiveness and by extension, the booking potential of the property.Design/methodology/approachThe authors use data from an online student accommodation listing platform – student.com – which contain tangible and non-tangible property attributes, and the data are analysed using a hedonic regression model.FindingsThe results show that purpose-built student accommodation's (PBSA) tangible and intangible attributes are important to students in their online accommodation search, although, these attributes vary in impact. The study also reveals that failure to display key information of a PBSA may reduce the attractiveness of the property.Originality/valueThe empirical evidence on student accommodation ex ante preferences and choices is limited, particularly as it relates to online accommodation search in a UK context. The authors' approach to identify the application of the search theory to the student accommodation search process is particularly unique.
Family businesses navigating the COVID-19 pandemic through a gender perspective: the role of external and internal factors in stimulating dynamic capability development
Authors: Kariv Dafna , Cisneros Luis , Guiliani Florence , Chouchane Rahma 
Published: July 2022

PurposeThe paper aims to decipher, through intertwined external and internal perspectives, how female and male owners of family businesses (FB) that have been affected by the pandemic develop new capabilities to respond to the market's crisis-related needs. Specifically, this study seeks to decipher the role of external support, mediated by the owner's psychological capital (i.e. internal perspective) and moderated by gender, on the development of capabilities related to the market's changing needs, drawing on the dynamic capabilities conceptualization.Design/methodology/approachA sample of responses from 261 Canadian FB owners was generated during the pandemic, and online questionnaires were distributed.FindingsRegression analyses and Hayes' PROCESS tool revealed that while external support directly invigorates capability development, external support is also mediated by psychological capital and moderated by gender, so that female owners were found less likely to use external support for capability development than men. These findings are explained by women's traditional responsibility in FB of protecting the family from external circumstances. Nevertheless, both women and men orchestrated external support, due to the higher psychological capital of FB, to develop capabilities that respond to pandemic-related market needs.Originality/valueThis study explores and demonstrates the unique navigation of FB owners during crises, and the role of the owner's gender in pursuing capability development. The study's value is in interconnecting external and internal perspectives while probing FB during crises. Implications for the ecosystem's conduct toward FB are discussed.
Clinical characteristics of peristomal pyoderma gangrenosum: A Single Center Retrospective Observational Study
Authors: Honma Masaru , Sugawara Motoshi , Ueno Naomi , Honma Miho , Hinooka Ranko , Tani Chikayoshi 
Published: July 2022

AbstractPeristomal pyoderma gangrenosum (PPG), a variant of pyoderma gangrenosum, occurs adjacent to intestinal or urinary stomas and are typically seen in patients with active inflammatory bowel diseases (IBD). The present study evaluated 14 cases of PPG among 537 patients that had undergone ostomy surgery at Asahikawa Medical University Hospital from January 2017 to December 2021. The incidence of PPG among ostomy cases was calculated as 1.01 per 100‐person‐years. The median period from ostomy surgery to PPG onset was 192.5 days (36–1224 days). Significant differences in gender and ostomy subtype were observed in patients with PPG compared to all patients that had undergone ostomy surgery. IBD prevalence was comparable between groups. Topical corticosteroids or tacrolimus were sufficient for controlling PPG lesions in all cases other than one case controlled with oral prednisolone administered for a separate condition. Clinicians should be aware of recent developments in IBD therapies that may modify the risk of developing PPG. The present study results add to current knowledge of the pathogenesis of PPG.
Light condition experienced by parent plants influences the response of offspring to light via both parental effects and soil legacy effects
Authors: Xue Wei , Huang Lin , Yu Fei‐Hai , Bezemer T. Martijn 
Published: July 2022

Abstract

Environmental conditions experienced by parent plants can influence offspring performance through parental effects induced by DNA methylation. The offspring can also be influenced by environmental conditions experienced by their parents via soil legacy effects due to plant‐mediated changes in the composition of soil microbes. These two effects are likely to act simultaneously, but empirical evidence for combined effects is limited.

We conducted a two‐phase experiment with five genotypes of a clonal plant Hydrocotyle vulgaris. In the first phase, we grew parent plants of each genotype under two light conditions (ambient vs. shade) and two DNA demethylation treatments [treated with water vs. 5‐azacytidine (5‐azaC)]. We then collected soils and clonal offspring for each genotype from each of these four treatments and measured soil (a)biotic properties. In the second phase, we grew the offspring from each of the four treatments in the four different soils, under the two light conditions.

When grown under ambient light condition and in soil from ambient parents, offspring produced by ambient parents grew larger than offspring produced by shaded parents when the parents were treated with water. This difference was smaller when the parents were treated with 5‐azaC, and disappeared when the offspring were grown in soil from shaded parents. The growth difference was also observed when the offspring were grown under shaded condition and in soil from shaded parents. However, this difference was greater when the parents were treated with 5‐azaC, and disappeared when the offspring were grown in soil from ambient parents. Moreover, offspring growth was associated with fungal composition and total phosphorus of the soil in which the parents had grown.

Our results show, for the first time, that light condition experienced by parents can influence offspring responses to light through both parental effects and soil legacies. The parental effects were mediated by changes in DNA methylation and the soil legacies were due to plant‐mediated changes in a combination of soil biotic and abiotic properties. These impacts may eventually influence the ecological and evolutionary trajectories of clonal plant populations.

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Liana litter decomposes faster than tree litter in a multispecies and multisite experiment
Authors: Roeder Mareike , Dossa Gbadamassi G. O. , Cornelissen J. Hans C. , Yang Xiaodong , Nakamura Akihiro , Tomlinson Kyle W. 
Published: July 2022

AbstractLianas account for a small fraction of forest biomass, but their contribution to leaf or litter biomass and thus to food webs can be substantial. Globally liana exhibit fast life‐history traits. Thus, liana litter may decompose faster than tree litter, and could enhance the decomposition of tree litter (complementarity effect). The differences in decomposition may also vary with mesofauna access or across forest communities. The contribution of these factors to nutrient biogeochemical cycling is poorly understood.We examined the decomposition of litter of 20 liana and 20 tree species of three different tropical forest communities in southern China, over 1 year. (i) We incubated the litter in bags with coarse and fine mesh to distinguish mesofaunal and microfaunal effects. (ii) We used single‐species litter bags to compare decomposition rates of lianas and trees, to test which functional traits best explained decomposition, and whether those traits differed between lianas and trees, and among forest types. (iv) We used mixed‐species litter bags to test whether liana litter enhances decomposition in litter mixtures. (v) We evaluated how leaf litter nutrients decayed in relation to litter mass.Litter decayed faster in coarse‐mesh than fine‐mesh bags, but there was no interaction effect with forest type or growth form. Liana litter decayed faster than tree litter in single‐species bags with mesofauna access and in mixed bags (liana‐only mix, tree‐only mix) without mesofauna. Lianas had higher nitrogen content and specific leaf area and lower leaf dry matter content (LDMC) and toughness than trees. Decomposition rate was significantly negatively related to LDMC. Litter of evergreen broadleaved forest decomposed slower than that of other forest types. Liana litter did not enhance the decomposition of tree litter in mixtures. Liana litter released calcium slightly faster than trees.Synthesis: Leaf litter decomposes faster for lianas than trees, despite high variability of traits and decomposition rates within each growth form and overlap between growth forms, and we found no evidence for the complementarity hypothesis. Our study sheds light on the potential role of lianas within brown food webs and their importance on terrestrial biogeochemistry.
The Costs of Waiving Audit Adjustments
Authors: CHOUDHARY PREETI , MERKLEY KENNETH , SCHIPPER KATHERINE 
Published: July 2022

ABSTRACTWe analyze the disposition of auditor‐proposed adjustments to financial statements. Our analyses address concerns, expressed by regulators and others, that auditors and their clients fixate on quantitative thresholds and overlook qualitative factors in assessing the materiality of discovered misstatements. Using a large sample of Public Company Accounting Oversight Board (PCAOB)‐inspected audits, we examine the frequency with which management records versus waives auditor‐proposed adjustments and whether waiving‐proposed adjustments ha consequences for reporting reliability and the audit process. We find waived adjustments are linked to lower financial reporting quality measured by material misstatements, to incentives to meet/beat earnings targets, and to the audit process, as measured by higher next‐period audit effort and fees and higher next‐period proposed adjustments. These effects on the audit process are consistent with auditors responding to the increased risk associated with waived adjustments. In an exploratory analysis, we find that controlling for the amount of proposed adjustments, auditor resignations are negatively associated with waived adjustments.
Effect of soy protein hydrolysates incorporation on dough rheology, protein characteristic, noodle quality, and their correlations
Authors: Guo Xingfeng , Sun Xiaohong , Zhang Yingying , Zhu Tingwei 
Published: July 2022

AbstractSoy protein hydrolysates (SPHs) have bioactive and nutritional functions that can be used as fortifier of noodles. The objective of this study is to explore the effect of SPHs on dough rheology and noodle quality. Two kinds of SPHs, with a hydrolysis degree of 4.43% (SPH4) and 7.47% (SPH7), were added to wheat flour at a ratio of 5:95 to make dough and noodles. The addition of SPHs decreased the gluten yield, gluten index, peak viscosity, final viscosity, and setback of flour paste. Dough stability decreased, but the extensibility increased because of the addition of SPHs. SPHs decreased the high molecular weight glutenin subunits and SDS‐unextractable polymeric protein proportion, and the results of scanning electron microscopy and atomic force microscopy also showed that the gluten network in SPH7 dough was more discontinuous than that in SPH4, suggesting a stronger negative effect of SPH7 on the formation of the gluten network compared to that of SPH4. The incorporation of SPHs decreased the hardness and springiness of cooked noodles but increased their cooking loss, protein loss, and water absorption. The correlation analysis showed that high molecular weight subunits and SDS‐unextractable polymeric protein in SPH‐fortified dough were positively correlated with the hardness, adhesiveness, springiness, cohesiveness, chewiness, resilience, force, and distance at break of noodles, and these texture properties of noodles were positively correlated with pasting, gluten, and farinographical properties of SPH‐fortified flour. These results suggested that SPHs could improve some qualities of noodles, such as smoothness and cooking yield, and resist pasted starch aging.Practical ApplicationSoy protein hydrolysates have many bioactive functions. This study demonstrated the feasibility of incorporating soy protein hydrolysates into wheat flour to prepare noodles. The addition of soy protein hydrolysates gives noodles smoother mouthfeel and increases the cooking yield. The addition of soy protein hydrolysates decreases the setback value of flour paste, suggesting that soy protein hydrolysates may help to resist starch aging, which is favorable for starch‐containing foods such as precooked noodles. Thus, soy protein hydrolysates possess potential applications in noodle products.