bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of vitamin B12 concentrations and tissue distributions in larval and adult Pacific oysters and related bivalves
Authors: Vogeler Susanne , Wikfors Gary H. , Li Xiaoxu , Sauvage Justine , Joyce Alyssa
Published: October 2021

Vitamin B12 (B12) is an essential micronutrient for all animals, but is not present in plants and is produced de novo only by bacteria or archaea. Accordingly, humans must derive required B12 from eating animal products or vitamin supplements, as deficiencies can lead to severe health issues including neuropathy. An often overlooked source in the human diet of B12 is shellfish, in particular bivalves, which have significantly higher levels of B12 than other animal sources, including all vertebrate meats. Origins and key metabolic processes involving B12 in bivalves remain largely unknown, despite the exceptionally high levels. In this study, we examined in several Australian bivalve species, hypotheses concerning B12 utilisation and uptake through diet or microorganism symbiosis. Vitamin B12 is not distributed evenly across different tissues types of the Pacific oyster, the commercial scallop and Goolwa cockle (pipi), with higher accumulation in the oyster adductor muscle and gill, and mantle and syphons of the Goolwa cockle. Oyster larvae before first feeding already contained high amount of B12; however, a significant decrease in B12 concentration post metamorphosis indicates a higher utilisation of B12 during this life event. We demonstrated that microalgal feed can be supplemented with B12, resulting in an enriched feed, but this did not result in an increase in larval B12 concentrations when oyster larvae were fed with this diet relative to controls, thus supporting the theory that a B12 producing microbiome within bivalves was the potential source of B12 rather than feed. However, B12 concentrations in the digestive tract of adult oysters were low compared to other tissue types, which might challenge this theory, at least in adults. Our findings provide insight into B12 uptake and function in bivalve species, which will aid the promotion of bivalves as suitable B12 source for humans as well as provide crucial information to the aquaculture industry in relation to optimisation of vitamin supplementation in bivalve hatchery production.
Epigenetic Control of Temperature-Dependent Female Reproductive Life History Trade-Offs in Seed Beetles, Callosobruchus maculatus
Authors: McCaw Beth A , Leonard Aoife M , Stevenson Tyler J , Lancaster Lesley T
Published: October 2021

Many species are threatened by climate change and must rapidly respond to survive changing environments. Epigenetic modifications, such as DNA methylation, can facilitate plastic responses by regulating gene expression in response to environmental cues. Understanding epigenetic responses is therefore essential for predicting species’ ability to rapidly adapt in the context of global environmental change. Here, we investigated the functional significance of DNA methylation on temperature-dependent life history in seed beetles, Callosobruchus maculatus. We assessed changes in DNA methyltransferase (Dnmt1 and Dnmt2) expression levels under ambient conditions and thermal stress, and reproductive performance following artificially-induced epimutation via 3-aminobenzamide (3AB) and Zebularine (Zeb), at a range of ambient and warmer temperatures over two generations. We found that Dnmt1 and Dnmt2 were greatly expressed in females, throughout the body, and exhibited temperature-dependence; in contrast, Dnmt expression was minimal in males. Epimutation led to shifts in female reproductive life history trade-off allocation, and differentially altered thermal optima of fecundity and offspring viability. This study revealed the optimal allocation strategy among these fitness components is temperature-dependent, and trade-offs become increasingly difficult to resolve epigenetically under more extreme warming. Results suggest that epigenetic mechanisms are strongly implicated in, and perhaps limiting of, invertebrate life history responses to temperature change. Further investigation will reveal targeted DNA methylation patterns and specific loci associated with temperature-dependent life history trade-offs in seed beetles and other invertebrates.
Determining criteria interaction and criteria priorities in the freight village location selection process: the experts' perspective in Turkey
Authors: Pekkaya Mehmet , Keleş Nuh
Published: October 2021

Purpose

Considering the contribution of freight villages (FVs) to the economy and sector, transportation cost advantage, environmental externalities, labor costs, employment, etc. criteria evaluation is important in selecting FV location. Environmental sustainability and social dimensions are becoming important criteria for companies in logistics. The purpose of the study is to determine/model the criteria interaction and also determine the criteria priorities in the FV location selection process. Meanwhile, the study aims to evaluate these criteria and present information to researchers and decision makers.

Design/methodology/approach

Six main criteria and 29 sub-criteria are selected from related literature. Decision making trial and evaluation laboratory (DEMATEL) method is used for determining/modeling the criteria interaction and sketching interaction diagram, and the Analytical Hierarchy Process (AHP) method is used for determining the criteria priorities. One/two-way pairwise compared main/sub-criteria views are obtained from 48 experts for calculations.

Findings

“Trade potential”, “transportation networks” and “economic factors” have the highest priorities, respectively, out of six main criteria, and they have the most powerful interactions that put these criteria to the center of decision process. Sub-criteria of “foreign trade potential”, “proximity to the port”, “market opportunities” and “proximity to the railway” out of 29 have a total 36.42% priority, more than one-third of the importance.

Originality/value

Criteria are evaluated in FV location selection for FV sustainability using criteria interaction diagrams, affecting/being affected by the level of each criterion and their priorities. This study shows a hybrid derivation from DEMATEL-AHP usage methods together. High-volumed and qualified/experienced expert group judgments in Turkey are evaluated.
A comprehensive examination of consumers' intentions to use food delivery apps
Authors: Wen Han , Pookulangara Sanjukta , Josiam Bharath M.
Published: October 2021

Purpose

Guided by the theory of planned behavior and the technology acceptance model, the purpose of this study was to comprehensively examine the factors that affect consumers' intentions to continue to use food delivery apps by developing and testing a research model and examining the differences between consumers with different demographic characteristics or behavior changes during the coronavirus disease 2019 (COVID-19) pandemic.

Design/methodology/approach

An online survey instrument was developed, and 316 valid responses were collected. A measurement model was developed and tested by using the structural equation modeling partial least squares (SEM-PLS) method.

Findings

The four basic constructs in the theory of planned behavior model (attitude, subjective norms, perceived behavioral control and trust) positively predicted consumers' intentions to continue to use food delivery apps. Predictors (including perceived innovativeness, hedonic and utilitarian motivations, perceived usefulness, perceived ease of use, and food safety risk perception) of these four basic constructs were also identified and confirmed. Multigroup analyses were conducted, and differences were found between male and female consumers and those with different ordering frequencies during the COVID-19 pandemic.

Originality/value

This study expanded the application of the theory of planned behavior by examining consumers' intentions to continue using food delivery apps and improved the authors’ understanding of this theory. Further, the successful application of the technology acceptance model improved the authors’ understanding of consumers' attitudes and behavioral intentions related to food delivery app usage.
Interdependence with suppliers in the innovation ecosystem: the effects of supplier concentration on firm innovation
Authors: Dong Caiting , Li Xiang , Chang Xinzhi
Published: October 2021

Purpose

Based on the strategy and new institutional economic literature, this study aims to explore how different levels of supplier concentration (SC) will be characterized by differences in switching cost and coordinated adaptation in an ecosystem, thereby shaping its research and development (R&D) intensity, innovation performance and innovation efficiency.

Design/methodology/approach

This study adopted a set of panel data of Chinese listed firms in the Growth Enterprise Board and their top five suppliers from 2012 to 2016. A Tobit model is used to test the hypotheses.

Findings

The study finds that SC has an inverted U-shape effect on R&D intensity. This finding implies that firms are more likely to invest in R&D when SC is intermediate level. While it has a U-shape relationship between SC and innovation output, both lower SC and higher SC are more efficient in innovation because of their advantage in low switching cost and better coordinative adaptability, respectively.

Originality/value

The study complements the innovation ecosystem literature by using SC to represent the structure of the interdependence between firms and suppliers in an ecosystem, then examining the correlation between SC and firms’ innovation investment and output, respectively. Second, combining strategy and new institutional economic literature, the non-linear effects of SC on firms’ innovation are found.
A study on the writing method of the history of socialist political economy with Chinese characteristics
Authors: Zhang Lin
Published: October 2021

Purpose

Expanding the research on traditional history of economic ideology into the research on the history of economics composed of three elements – history of ideology, history of policies and events – is a new idea for researching the history of socialist political economy with Chinese characteristics. The start of the history of socialist political economy with Chinese characteristics is consistent with that of the Sinicization of Marxist political economy and can be dated from at least 1917.

Design/methodology/approach

The key point of the research on the history of ideologies of the socialist political economy with Chinese characteristics is to treat the relationship between theory and people properly, i.e. we should not neglect the effect brought out by the economists on theory construction while we attach importance to the theoretical contribution of the leaders and leading group of the Communist Party of China (CPC).

Findings

For the research on the history of economic policies of socialist political economy with Chinese characteristics, on the one hand, we should clarify the relationship among ideologies, strategies and policies; on the other hand, we should not evade the summarization of lessons from history.

Originality/value

Besides presenting the development route of socialist political economy with Chinese characteristics under competition, the research on the events in the history of socialist political economy with Chinese characteristics should also help develop the socialist political economy with Chinese characteristics.
Interoperability and standardization: lessons from the fruit-bowl
Authors: McAleavy Tony
Published: October 2021

Purpose

This study hypothesizes the limitations of standardization as an interoperability development tool within emergency management.

Design/methodology/approach

Pragmatism and Morgan's seminal organizational metaphors inform the conceptualization of the Interoperability Orange metaphor using symbolic logic and visual imagery.

Findings

The essence of standardization is homogeneity. Within emergency management, it is commonplace to develop legislation to standardize policies, procedures, training, equipment and terminology to engender interoperability among first responder and associated organizations. Standardization is achievable with similar or a small number of organizations. However, it is unlikely, if not impossible, in the context of disasters and catastrophes, given the broad range of organizations, groups and individuals typically involved. This diversity of cultures, subcultures, norms, values and indigenous and technical languages intimates that standardization is counterintuitive, particularly in disasters and catastrophes. The posited Interoperability Orange metaphor demonstrates that standardization as a policy, though desired, is theoretically unobtainable in enlarging multiorganizational environments. Thus, new perspectives, policies and solutions for interoperability are needed.

Originality/value

The posited theory builds on the growing body of metaphor-based emergency management research. The Interoperability Orange provides an accessible and easy-to-use communicative tool that aids theoretical cognition – notably within multicultural English as a Second Language environments – as it enables a deeper more critical and explicit understanding of the limits of standardization expressed via metaphor, symbolic logic and imagery.
Sustainable entrepreneurship education for circular economy: emerging perspectives in Europe
Authors: Del Vecchio Pasquale , Secundo Giustina , Mele Gioconda , Passiante Giuseppina
Published: October 2021

Purpose

The paper aims to contribute to the Circular Economy debate from the Entrepreneurship Education perspective. Despite scholars' growing interest in both these research streams, scarce consideration is given to the comprehension of their mutual implications and meaning.

Design/methodology/approach

The paper is based on a cross-case analysis. It compares 16 higher education programmes launched by Universities in Europe aimed to create competences and skills for Circular Economy in students with different profiles. The analysis provides a critical view of the emerging trends for the entrepreneurship education skills and competencies needed for the emerging circular entrepreneurship paradigm.

Findings

The paper discusses the main trends of Entrepreneurship Education focused on Circular Economy debate at the European level: rationale and learning objectives (why); contents (what), target students and stakeholders (who) and the learning processes (how). Four thematic areas are identified as common patterns: circular economy business model, green supply chain management, technology entrepreneurship and innovation and public policies and institutional frameworks.

Research limitations/implications

The paper sheds new light on a still under-researched area, suggesting several implications and avenues for future research in Circular Economy and Entrepreneurship Education. Limitations regard the need to analyse education programmes from a larger geographical area, to take into consideration interesting experiences in the rest of the world and to also collect quantitative data.

Practical implications

Practical implications arise for the development of learning initiatives for the Circular Economy: learning objectives and new thematic areas focused on circular, sustainable and innovative rethinking of the process for creating value in the incumbent companies; exploring meaning and benefits of collaborative approaches and participation in the circular economy innovation ecosystem and developing advanced models for soft-skills development in terms of leadership, motivational and creative skills.

Originality/value

The debate on CE can also be rooted in the paradigm of entrepreneurship as a core process to advance knowledge on valuable and sustainable innovation.
Socioemotional wealth and human resource policies: effects on family firm performance
Authors: Peláez-León Juan David , Sánchez-Marín Gregorio
Published: October 2021

Purpose

This study analyses whether human resource management (HRM), through the use of four sets of high-performance work policies (HPWPs) (i.e. selection, training, motivation and opportunity policies), mediates the relationship between socioemotional wealth (SEW)—defined as a unique set of nonfinancial family goals—and firm financial performance when family firms face a high-risk context.

Design/methodology/approach

Hypotheses were statistically tested using a structural equation modeling (SEM) methodology with a cross-sectional sample of 196 medium-sized and private family firms in a high-risk context in Spain.

Findings

The results indicate that the relationship between SEW and financial performance in family firms is fully mediated by the use of HPWPs, especially by training and motivation HR policies. The importance given to preserving SEW influences the use of four sets of HPWPs when family firms show clear evidence of being confronted by a financial decline (i.e. a high-risk context). However, to improve their financial results to avoid the firm's failure and thus the loss of their SEW, only those HR policies that focus on training and motivation made a significant and positive contribution to the firm financial performance.

Originality/value

This study contributes to the literature on family firms and HRM by adopting an alternative theoretical framework to understand how the importance of nonfinancial family goals may affect employee structures and management policies, thereby improving financial performance in family firms.
Accountingisation and the narrative (re)turn of business model information in corporate reporting
Authors: Di Tullio Patrizia , La Torre Matteo , Dumay John , Rea Michele Antonio
Published: October 2021

Purpose

The debate about whether corporate reports should focus on numbers or narrative is long-standing. The recent push for business model information to be included in corporate reports has revitalised the debate. Many scholars suggest this constitutes a move towards narrative-based reporting. This study aims to investigate the debate and draws a comparison with the juxtaposition of the narrative and rational paradigms. This study also investigates how accountingisation influences the way business model information is presented in corporate reports.

Design/methodology/approach

This study analyses data from the financial and non-financial reports from 86 globally listed companies. This study first uses content analysis to code the data. This study then uses a partial least squares-structural equation model to test how accountingisation influences how firms report their business model information.

Findings

This study finds that accountingisation and a rational paradigm shape how companies present information about their business model in their financial and non-financial reports. This suggests that the dominance of quantitative measures in accounting affects even the presentation of narrative-based information. Despite the much-touted shift towards qualitative reporting, this study argues that companies find it difficult to cast off the yoke of a traditional numbers-based mindset.

Research limitations/implications

This paper contributes to the debate on numbers- versus narrative-based corporate reporting and the workings of narrative and rational paradigms. In it, this study lays out theoretical and empirical findings of accountingisation. This study also makes a case for freeing corporate reports from the shackles of an accountingisation mindset.

Originality/value

This study provides new insights into how companies report information about their business models and the influence of narrative and rational paradigms on financial and non-financial reporting.
Ancient routes, new dream: the Silk Roads and China's Belt and Road Initiative
Authors: Qian Fengqi
Published: October 2021

Purpose

The paper aims to contribute to the current research on China's Belt and Road Initiative (BRI) from a historical point of view. The paper investigates why the history of the Silk Roads is important to the BRI, what is in the guiding thought underpinning China's Silk Roads narrative and how this narrative is presented transnationally, through an insightful analysis of the Communist Party of China's (CPC) view of the Silk Roads history, as well as its perception of the connections between the Silk Roads history and the BRI.

Design/methodology/approach

The paper sits in the interface between history, heritage and state power. The argument is framed in concepts of historical constructionism and soft power. It is based on the discourse analysis of China's official narrative of Silk Roads and a case study of the planning for the World Heritage nomination of the Maritime Silk Routes (MSR) (China section). The case study is conducted through a qualitative analysis of academic publications, media reports and programs, official speeches and documents that are available to the public in hardcopy or on the Internet.

Findings

The paper reveals the relationship between the state-endorsed Silk Roads narrative and the BRI. The paper argues that the state-backed Silk Roads narrative as well as the planning for the World Heritage nomination of the MSR (China section) is guided by the Chinese Communist Party's perception of the BRI. In this respect, the Silk Roads-associated history, heritage and memory are shaped and deployed to serve as a convenient platform for the promotion of the BRI. The Party leaders' perception of the BRI is in large part about the revival of China's past glory, its national rejuvenation and the demonstration of China's soft power.

Originality/value

The paper contributes to the existing literature on the BRI through its enquiries into how the CPC reconcile nationalist ambitions with notions of peace, harmony and cosmopolitanism and how CPC's view of the Silk Roads history shapes its vision of the BRI. The paper examines the role of the state in the construction and articulation of the Silk Roads-associated history, heritage and memory. It investigates how China's official interpretation of the Silk Road heritage serves China's BRI.
Does sticky inventory management improve productivity?
Authors: Wang Jingbin , Hou Kexin , Zhu Xuechang
Published: October 2021

Purpose

The purpose of this study is to demonstrate the nonlinear relationship between inventory stickiness and productivity, with investment efficiency being a mediator and environmental dynamism being a moderator.

Design/methodology/approach

Using a large panel data collected from 1,479 Chinese listed manufacturing enterprises over the period from 2010 to 2020, this research employs the instrumental variable method combined with two-stage least squares estimators to explore the inverted-U-shaped relationship between inventory stickiness and productivity. Furthermore, the mediating role of investment efficiency and the moderating role of environmental dynamism are demonstrated via two three-model systems.

Findings

As its core, productivity initially increases with inventory stickiness until a turning point at the end of the sample, beyond which the incremental effect of inventory stickiness on productivity become negative. That is, an inverted U-shaped relationship between inventory stickiness and productivity is found to exist. Moreover, further mediated moderation analysis highlights that investment efficiency is a key mediator of this relationship, whereas environmental dynamism is a key moderator.

Practical implications

Managers ought to gauge carefully against the tradeoffs between inventory stickiness and productivity. In general, over 90% of manufacturing enterprises have great potential to increase productivity by implementing sticky inventory management. In addition, managers are suggested to place emphasis on investment management and environmental strategy.

Originality/value

This paper contributes to the current understanding about productivity by illustrating and verifying the nonlinear effect of sticky inventory management. It may be the first study to empirically demonstrate the mediating effect of investment efficiency and the moderating effect of environmental dynamism on the relationship between inventory stickiness and productivity.
In search for the missing link: studying the interrelationship between organizational learning and organizational culture change
Authors: Wolf Patricia , Verma Surabhi , Kocher Pierre-Yves , Bernhart Maximilian Joseph , Meissner Jens O.
Published: October 2021

Purpose

The interrelationship between organizational learning (OL) and organizational culture (OC) is often assumed at an abstract theoretical level, but there is yet no systematization of scholarly knowledge allowing to conceptualize and understand its precise nature. In this article, we therefore ask “How can we, based on the insights from the dispersed research studying OC and OL, conceptualize the interrelationship between the two concepts?” Our purpose is to create an overview on the past development path and the current status of research interrelating OL and OC, to use it as basis for the conceptualization of this interrelationship and to identify avenues for future research.

Design/methodology/approach

This article utilized a systematic literature review methodology by combining bibliometric and content analysis using relevant articles identified from the Scopus database. A two-stage literature review research approach was employed: (1) Bibliometric analysis was used to identify 416 relevant contributions and to present a comprehensive contextual picture of the interrelations between OL and OC research by analyzing the 162 most relevant articles. (2) A subsequent qualitative content analysis of the 45 most relevant academic contributions detailed and solidified the insights.

Findings

We identify four weakly linked thematic clusters on the interrelationship of OC and OL. Based on that, our analysis confirms the theorized bidirectional relationship between OC and OL: OC acts as antecedent, driver and result of OL processes, and OL processes are constrained by and alter OC. We moreover develop three propositions that put knowledge at the center of scholarly attention for understanding this interrelationship in more depth and develop avenues for future research.

Practical implications

Our research has important implications for managers as it shows that mastering leadership challenges is central for the success of OL processes and OC change. We moreover specify the leadership challenges that relate to particular types of OL processes. Managers need to take this interrelationship into account when setting out for OL or OC change processes, and carefully reflect on whether or not the decided OL measures fit the given OC, and the other way round.

Originality/value

Our contribution to existing research is threefold: It first lies in analytically mapping out the research field, second in conceptualizing the interrelationship between OC and OL and third in identifying open research questions and topics.
Let's work together, especially in the pandemic: finding ways to encourage problem-focused voice behavior among passionate employees
Authors: De Clercq Dirk , Pereira Renato
Published: October 2021

Purpose

This study seeks to unravel the relationship between employees' passion for work and their engagement in problem-focused voice behavior by identifying a mediating role of their efforts to promote work-related goal congruence and a moderating role of their perceptions of pandemic threats to the organization.

Design/methodology/approach

The research hypotheses were tested with quantitative data collected through a survey instrument administered among 158 employees in a large Portuguese-based organization that operates in the food sector, in the midst of the coronavirus disease 2019 (COVID-19) pandemic. The Process macro was applied to assess the moderated mediation dynamic that underpins the proposed theoretical framework.

Findings

Employees' positive work-related energy enhances their propensity to speak up about organizational failures because they seek to find common ground with their colleagues with respect to the organization's goals and future. The mediating role of such congruence-promoting efforts is particularly prominent to the extent that employees dwell on the threats that a pandemic holds for their organization.

Practical implications

The study pinpoints how HR managers can leverage a negative situation—employees who cannot keep the harmful organizational impact of a life-threatening virus out of their minds—into productive outcomes, by channeling positive work energy, derived from their passion for work, toward activities that bring organizational problems into the open.

Originality/value

This study adds to HR management research by unveiling how employees' attempts to gather their coworkers around a shared work-related mindset can explain how their passion might spur reports of problem areas, as well as explicating how perceived pandemic-related threats activate this process.
Do high engagement Instagram images influence presidential candidate evaluation? The moderating effect of familiarity
Authors: Munoz Caroline Lego , Towner Terri
Published: October 2021

Purpose

This paper aims to examine how exposure to a presidential candidate's high engagement Instagram images influences a citizen's candidate evaluations.

Design/methodology/approach

Data were collected via Amazon MTurk. A 3 × 2 experimental design was employed to test the persuasive effect of exposure of the “most liked” and “most commented on” images of the top four 2016 US presidential primary candidates on a US citizen's candidate evaluation.

Findings

Results reveal that highly engaging Instagram images of unfamiliar presidential candidates positively influenced candidate evaluations. However, the same was not true for more well-known presidential candidates.

Research limitations/implications

This study was not conducted during a live campaign and only examined four of the top 2016 presidential primary candidates.

Practical implications

The research includes implications for marketers seeking to increase engagement and reach in Instagram marketing campaigns. This study shows that even brief exposure to a highly engaged post involving an unfamiliar person/product on social media can significantly alter evaluations of that person or product.

Originality/value

To the authors' knowledge, no experimental designs have addressed how Instagram posts influence users' political attitudes and behaviors within the political marketing and communications literature.
Evaluation of the trust values among human resources in the enterprise cloud using an optimization algorithm and fuzzy logic
Authors: Li Lantian , Pahlevanzadeh Bahareh
Published: October 2021

Purpose

Cloud eases information processing, but it holds numerous risks, including hacking and confidentiality problems. It puts businesses at risk in terms of data security and compliance. This paper aims to maximize the covered human resource (HR) vulnerabilities and minimize the security costs in the enterprise cloud using a fuzzy-based method and firefly optimization algorithm.

Design/methodology/approach

Cloud computing provides a platform to improve the quality and availability of IT resources. It changes the way people communicate and conduct their businesses. However, some security concerns continue to derail the expansion of cloud-based systems into all parts of human life. Enterprise cloud security is a vital component in ensuring the long-term stability of cloud technology by instilling trust. In this paper, a fuzzy-based method and firefly optimization algorithm are suggested for optimizing HR vulnerabilities while mitigating security expenses in organizational cloud environments. MATLAB is employed as a simulation tool to assess the efficiency of the suggested recommendation algorithm. The suggested approach is based on the firefly algorithm (FA) since it is swift and reduces randomization throughout the lookup for an optimal solution, resulting in improved performance.

Findings

The fuzzy-based method and FA unveil better performance than existing met heuristic algorithms. Using a simulation, all the results are verified. The study findings showed that this method could simulate complex and dynamic security problems in cloud services.

Practical implications

The findings may be utilized to assist the cloud provider or tenant of the cloud infrastructure system in taking appropriate risk mitigation steps.

Originality/value

Using a fuzzy-based method and FA to maximize the covered HR vulnerabilities and minimize the security costs in the enterprise cloud is the main novelty of this paper.
The board effectiveness index and stock price crash risk
Authors: Wattanatorn Woraphon , Padungsaksawasdi Chaiyuth
Published: October 2021

Purpose

The main purpose of this study is to use a new broad board effectiveness index, which has been created from several internal attributes of board of directors and to investigate the association of the overall index regarding stock price crash risk.

Design/methodology/approach

The authors create a new board effectiveness index from a comprehensive set of board attributes, including the number of board meetings, the number of board attendances, the expertise of the directors, the size of the board and the number of independent directors, in order to test with the stock price crash risk by using panel regression models with fixed effects. The two-stage least squared regression ensures endogeneity issues.

Findings

An increase in board effectiveness index lowers firm-specific crash risk. Moreover, female directors enhance the board effectiveness.

Originality/value

With a new broad board effectiveness index, this paper is unique from other studies as the authors focus on the overall index rather than on a single dimension of board attributes.
Hit and miss: a comparison of targeted and randomised roadside drug testing (RDT)
Authors: Anderson Levi , Love Steven , Freeman James , Davey Jeremy
Published: October 2021

Purpose

This study first aimed to investigate the differences in drug driver detection rates between a trial of randomised and targeted enforcement operations. The second aim was to identify which indicator categories are most commonly used by police to target drug drivers and to assess the effectiveness of targeted drug testing. Finally, this study aimed to quantify what specific indicators and cues (of the overarching categories) triggered their decision to drug test drivers and which indicators were most successful.

Design/methodology/approach

This research examined the detection rates in a trial comparison of randomised and targeted roadside drug testing (RDT) operations as well as the methods utilised by police in the targeted operations to identify potential drug driving offenders.

Findings

Visual appearance was by far the most commonly utilised indicator followed by age, police intelligence on prior charges, vehicle appearance and behavioural cues. However, the use of police intelligence was identified as the most successful indicator that correlated with positive oral fluid testing results. During the randomised RDT operations, 3.4% of all drivers who were tested yielded a positive roadside oral fluid result compared to 25.5% during targeted RDT operations.

Research limitations/implications

The targeted RDT approach, while determined to be an effective detection methodology, limits the overall deterrent effect of roadside testing in a more general driving population, and the need for a balanced approach to ensure detection and deterrence is required. This study highlights that by focussing on night times for randomised RDT operations and the identified effective indicators for targeted operations, an effective balance of deterrence and detection could be achieved.

Practical implications

While the presence of a single indicator is not indicative of a drug driver, this study highlights for police which indicators currently used are more effective at detecting a drug driver. As a result, police could adapt current RDT procedures to focus on the presence of these indicators to support drug driver detection.

Originality/value

This is a world-first study that examines both randomised and targeted roadside drug testing. This study controls for location and time of day while using the same police unit for roadside testing, thus is able to make direct comparisons between the two methodologies to determine the effectiveness of police targeting for roadside drug testing. Furthermore, this study highlights which indicators used by police results in the highest rate of positive roadside drug tests.
Great granny still ruling from the grave: Phenotypical response of plant performance and seed functional traits to salt stress affects multiple generations of a halophyte
Authors: Wang Zhaoren , Baskin Jerry M. , Baskin Carol C. , Yang Xuejun , Liu Guofang , Ye Xuehua , Huang Zhenying , Cornelissen Johannes H. C.
Published: October 2021

Environmental changes, for example, in rainfall and land use, lead to changes in the environment experienced by subsequent generations of plant species. Environmental conditions of maternal plants can influence the fitness and phenotypes of subsequent generations via non‐genetic mechanisms: transgenerational plasticity (TGP). However, relevant empirical evidence remains scarce and ambiguous. What are the adaptive consequences of TGP for plants in the face of environmental change? For how many generations does the TGP effect remain?

We tried to answer these questions by measuring life‐history traits and reproductive characteristics of progeny plants of the diaspore‐heteromorphic annual halophyte Atriplex centralasiatica in a 3‐year TGP experiment covering F0, F1 and F2 and partly F3. Plants from diaspore types A (low dispersal and high germination ability) and C (high dispersal and low germination ability) were grown in favourable versus stressful salinities over three generations in a fully factorial design.

Transgenerational plasticity of plants grown in favourable versus stressful salinities decreased from F2 → F1 → F0. Compared to the favourable condition, the stressful condition decreased the length of the vegetative period, increased the length of reproductive time, reproductive allocation and progeny diaspore size. Salinity tolerance and phenotypic plasticity were higher in plants from diaspore A than in those from diaspore C. In the stressful condition, plants produced less plant biomass, larger diaspores, a higher proportion of diaspore C, but lower proportion of diaspore A. Production of the proportion of diaspore C increased with increase in number of previous generations that experienced stress. The stress experience of the great‐great grandmother (F0) continued into the lower A:C ratio of the F3 diaspores.

Synthesis. Our findings provide evidence for the ‘escape strategy’ of A. centralasiatica: TGP could spread the risk of environmental adversity by delaying seed germination temporally and broadening seed dispersal spatially, thus allowing plants to cope with environmental heterogeneity. Specifically, the trade‐off in reproductive allocation between diaspores A and C enables plants to develop divergent strategies. New research should reveal the extent to which wide‐ranging taxa can benefit from TGP and whether even (great)‐great grandmother might be the starting point of TGP.
Disease influences host population growth rates in a natural wild plant–pathogen association over a 30‐year period
Authors: Zhan Jiasui , Ericson Lars , González‐Jiménez Jose , Burdon Jeremy J.
Published: October 2021

The epidemiological and demographic dynamics of plant–pathogen interactions in natural environments are strongly affected by spatial and temporal influences. Here we assess the interaction between Filipendula ulmaria and its rust pathogen Triphragmium ulmariae by analysing a 30‐year long dataset that has followed pathogen and plant population dynamics in a metapopulation of ~230 host patches growing on islands of the Skeppsvik archipelago in northern Sweden.

Over this period, the host metapopulation initially expanded in both number and size of individual patches before plateauing. In contrast, the pathogen metapopulation showed greater change. Disease incidence showed a convex pattern rising for the first decade before showing a marked decline in the last decade. At the same time, the prevalence of disease in infected populations showed a constant 30‐year long decline.

At the individual host population level, each population was annually classified into one of four inter‐year states: healthy, recolonization, extinction and diseased. Host populations that were healthy from 1 year to the next were significantly smaller than all other host population categories, while host populations in which disease was constantly present were significantly larger.

Host populations in which the pathogen underwent either an extinction or a recolonization event were of similar size and represented a measure of the host threshold size for long‐term pathogen survival.

Host population growth rates declined as disease levels increased. The growth rate of host populations in which disease was continuously present was 75% lower than in populations that were free disease.

The sensitivity of the association to climate change as demonstrated through a decline in disease incidence and prevalence and an increase in drought damage to plant populations as temperatures rise has only become apparent through analysis of an extensive long‐term dataset.

Synthesis. To date wild plant–pathogen studies have focused on the epidemiology of the pathogen and its effect on individual plant fitness. Here we have established a link to the impact of the pathogen on the long‐term dynamics of host populations. This has the potential to trigger a cascade of changes in the species composition and diversity of communities.
Microbial ecology of sulfur cycling near the sulfate–methane transition of deep‐sea cold seep sediments
Authors: Li Wen‐Li , Dong Xiyang , Lu Rui , Zhou Ying‐Li , Zheng Peng‐Fei , Feng Dong , Wang Yong
Published: October 2021

Microbial sulfate reduction is largely associated with anaerobic methane oxidation and alkane degradation in sulfate–methane transition zone (SMTZ) of deep‐sea cold seeps. How the sulfur cycling is mediated by microbes near SMTZ has not been fully understood. In this study, we detected a shallow SMTZ in three of eight sediment cores sampled from two cold seep areas in the South China Sea. One hundred ten genomes representing sulfur‐oxidizing bacteria (SOB) and sulfur‐reducing bacteria (SRB) strains were identified from three SMTZ‐bearing cores. In the layers above SMTZ, SOB were mostly constituted by Campylobacterota, Gammaproteobacteria and Alphaproteobacteria that probably depended on nitrogen oxides and/or oxygen for oxidation of sulfide and thiosulfate in near‐surface sediment layers. In the layers below the SMTZ, the deltaproteobacterial SRB genomes and metatranscriptomes revealed CO2 fixation by Wood–Ljungdahl pathway, sulfate reduction and nitrogen fixation for syntrophic or fermentative lifestyle. A total of 68% of the metagenome assembled genomes were not adjacent to known species in a phylogenomic tree, indicating a high diversity of bacteria involved in sulfur cycling. With the large number of genomes for SOB and SRB, our study uncovers the microbial populations that potentially mediate sulfur metabolism and associated carbon and nitrogen cycles, which sheds light on complex biogeochemical processes in deep‐sea environments.
Predicting adulteration of grated Parmigiano Reggiano cheese with Ricotta using electrophoresis, multivariate nonlinear regression and computational intelligence methods
Authors: Fagnani Rafael , Damião Bruno Cesar Michelette , Trentin Régia Patrícia Saviani , Vanot Rogério Luiz
Published: October 2021

Urea polyacrylamide gel electrophoresis combined with statistical methods was used to detect the addition of Ricotta to grated Parmigiano Reggiano cheese. The adulterated samples were prepared by adding grated Ricotta to grated Parmigiano Reggiano cheese in six different ratios. The logistic regression and rank correlation performed worse than the naïve Bayes classifier at identifying samples of grated Parmigiano Reggiano containing more than 20% Ricotta in terms of area under the receiver operating characteristic curve and classification accuracy. This work can be considered a pilot study to investigate the potential of machine‐learning methods to predict the authenticity of Parmigiano Reggiano cheese.
Forensic analysis of anti‐forensic file‐wiping tools on Windows
Authors: AlHarbi Rayed , AlZahrani Ali , Bhat Wasim Ahmad
Published: October 2021

This paper presents forensic analysis of anti‐forensic file‐wiping tools on the Windows platform. The goal is to identify and extract the evidence of the tools used to wipe files and the files wiped by them on the Windows operating system. To achieve this goal, we analyzed the changes made by these tools to metadata structures of Windows file systems during file wiping. We also analyzed Registry keys and .lnk files to collect the evidence. Our experiments used four file‐wiping tools (SecureDelete v1.0, Secure Eraser v5.2, PC Shredder v1.1, and Blank and Secure v5.88) to wipe files on three Windows file systems (FAT32, exFAT and NTFS). The results suggest that FAT32 and exFAT file system directory structures and $MFT entries of NTFS file system can confirm the use of wiping tools, identify these tools and provide the remnants of the wiped files. Also, $LogFile and $UsnJrnl files of NTFS file system, and Windows Registry keys provide detailed evidence of wiping tools used and the files wiped by them. We also found that the contents of resident and non‐resident alternate data streams, $LogFile and $UsnJrnl files, and Windows Registry keys are not wiped by these tools. Finally, this study makes many recommendations, highlights the limitations of the work and points out the future scope.
Pivoting after almost 50 years of SHRM research: toward a stakeholder view
Authors: Wright Patrick M , Steinbach Adam L
Published: October 2021

Early in the history of the Strategic Human Resource Management (SHRM) literature, writers frequently discussed stakeholders to the organization that were relevant to the Human Resources (HR) function. However, over the years the field narrowed its focus to be primarily, if not solely, on one stakeholder: the shareholders. While many authors have paid lip‐service to the fact that other stakeholders exist, little attention was devoted to what these stakeholders meant for the HR function. In this paper, we examine the current thinking around stakeholder theory in the strategic management literature, and then explore what a stakeholder view of SHRM guided by this theory might look like. We build our approach around five important HR categories – purpose, priorities, people, personal relationships, and practices – and hope that this approach can help the field pivot to a more values‐driven, stakeholder‐centered view of the HR function.