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The purpose of this paper is to characterize a commutative ring R with identity which is not an integral domain such that ZT(R), the total zero-divisor graph of R is connected and to determine the diameter and radius of ZT(R) whenever ZT(R) is connected. Also, the purpose is to generalize some of the known results proved by Duric et al. on the total zero-divisor graph of R.

We use the methods from commutative ring theory on primary decomposition and strong primary decomposition of ideals in commutative rings. The structure of ideals, the primary ideals, the prime ideals, the set of zero-divisors of the finite direct product of commutative rings is used in this paper. The notion of maximal Nagata prime of the zero-ideal of a commutative ring is also used in our discussion.

For a commutative ring R with identity, ZT(R) is the intersection of the zero-divisor graph of R and the total graph of R induced by the set of all non-zero zero-divisors of R. The zero-divisor graph of R and the total graph of R induced by the set of all non-zero zero-divisors of R are well studied. Hence, we determine necessary and sufficient condition so that ZT(R) agrees with the zero-divisor graph of R (respectively, agrees with the total graph induced by the set of non-zero zero-divisors of R). If Z(R) is an ideal of R, then it is noted that ZT(R) agrees with the zero-divisor graph of R. Hence, we focus on rings R such that Z(R) is not an ideal of R. We are able to characterize R such that ZT(R) is connected under the assumptions that the zero ideal of R admits a strong primary decomposition and Z(R) is not an ideal of R. With the above assumptions, we are able to determine the domination number of ZT(R).

Duric et al. characterized Artinian rings R such that ZT(R) is connected. In this paper, we extend their result to rings R such that the zero ideal of R admits a strong primary decomposition and Z(R) is not an ideal of R. As an Artinian ring is isomorphic to the direct product of a finite number of Artinian local rings, we try to characterize R such that ZT(R) is connected under the assumption that R is ta finite direct product of rings R1, R2, … Rn with Z(Ri) is an ideal of Ri for each i between 1 to n. Their result on domination number of ZT(R) is also generalized in this paper. We provide several examples to illustrate our results proved.

The implication of this paper is that the existing result of Duric et al. is applicable to large class of commutative rings thereby yielding more examples. Moreover, the results proved in this paper make us to understand the structure of commutative rings better. It also helps us to learn the interplay between the ring-theoretic properties and the graph-theoretic properties of the graph associated with it.

The results proved in this paper are original and they provide more insight into the structure of total zero-divisor graph of a commutative ring. This paper provides several examples. Not much work done in the area of total zero-divisor graph of a commutative ring. This paper is a contribution to the area of graphs and rings and may inspire other researchers to study the total zero-divisor graph in further detail.

Drawing on prospect theory, terror management theory, and social influence theories, this study explores the phenomenon of panic buying amid the COVID-19 pandemic, namely its situational antecedents such as fear of COVID-19, increased media exposure to COVID-19-related news, and context-specific paranoia. It offers insight into the situational nature of panic buying, contrary to the purely dispositional/trait conceptualization of irrational spending, usually depicted through the phenomenon of compulsive buying.

This is a cross-sectional study. An online questionnaire was used for data collection from 621 Croatian citizens. The questionnaire features a series of validated instruments designed to measure compulsive buying, fear of COVID-19, and context-specific paranoia. The media exposure scale (MES) was also specifically developed and empirically tested for the purpose of this research.

The results suggest that individuals who exhibited greater fear of COVID-19 while also experiencing increased exposure to COVID-19-related news were more likely to engage in panic buying. This connection has remained significant even after controlling for compulsive buying tendencies, suggesting that panic buying witnessed during the coronavirus pandemic was a situational phenomenon, not strictly dispositional. This establishes the fear of COVID-19 and increased exposure to pandemic-related news content as situational antecedents to panic buying. After controlling for compulsive buying, this paper does not demonstrate a significant connection between context-specific paranoia and panic buying. Furthermore, context-specific paranoia does not mediate the relationship between media exposure to pandemic-related content and panic buying, whereas the fear of COVID-19 significantly mediates the same relationship.

This study recognizes people's panic behavior amid the COVID-19 pandemic as a byproduct of a situational, reactive process – not a psychopathological one. Furthermore, it recognizes media sensationalism and the audience's impaired capacity for rational spending as major risk factors preceding the event of panic buying.

This study proposes a novel conceptual framework of irrational spending amid crises such as COVID-19 pandemic, introducing the differentiation between the situational nature of the phenomenon (panic buying), thereby separating it from its previous dispositional operationalizations (hoarding, compulsive buying).

The study investigates how sustainability reporting constructs a narrative about an organization that provides its members with a reality they can accept, with the consequence of producing organizational stability.

The article reports a research engagement concerning the “backstage” of sustainability reporting in one Spanish savings bank, which the researchers engaged with for more than three years.

The article describes how sustainability reporting operates as a boundary object occupying the space between the organization’s loosely coupled systems and facilitating the cooperation of members with different interpretations of the organization. Different translations of discourses and actions ensure that the sustainability report conveys a ductile narrative that can be tailored to specific interpretations. At the same time, the editing inherent in sustainability reporting ensures that any narrative that may challenge the organization’s dominant perspective is ignored and marginalized. In this way, sustainability reporting produces a discourse that inscribes a narrative of the organization and eventually ensures organizational inertia.

The article highlights the relevance of investigating sustainability reports by exploring the backstage of their production rather than solely the final document.

In contrast to prior research that has been concerned with exploring the extent to which sustainability reporting is associated with organizational change, this study applies different lenses to show how and why sustainability reporting is implicated in the construction of the organization and the maintenance of its stability and inertia.

The purpose of this study is to assess how higher education anchor institutions (HEIs) voluntarily report their non-economic impacts. Its goals are to quantify the ease of public access to this information; strengthen the conceptual foundation for HEI impact reporting; and provide guidance for making HEI voluntary disclosures more accessible, comparable and systematic.

Using an exploratory mixed methods design and purposeful sampling, this study analyzed voluntary public disclosures of 41 anchor institution universities in the USA to assess how they communicate their public value creation to stakeholders. Data sources included impact reports, donor reports, annual reports and sustainability reports. The study also analyzed the accessibility of this information by timing how long it took to locate.

The sampled US anchor institutions communicate their non-economic impact to stakeholders in myriad ways using a variety of formats. Time required to find the reports ranged from 37 to 50 min, with an average of 42.30 min. Disparate reporting formats inhibit comparability.

Only 41 anchor institutions were examined. The small sample may not be representative of the broader landscape of higher education institutions.

Findings offer guidance for improving voluntary nonfinancial disclosures to increase public confidence in higher education institutions while advancing community and global resilience. To strengthen voluntary disclosure practices, the study recommends using a standardized reporting format, framing HEI impact through socio-ecological resilience indicators, integrating reports and obtaining some form of assurance. These changes would enhance the credibility and comparability of the disclosures.

This research provides some of the first empirical insight into how US higher education anchor institutions report their value creation to the public. Its application of socio-ecological systems theory outlines an actionable conceptual foundation for HEI reporting by linking organizational, community and global resilience.

Despite a growing awareness of the gap between professional expectations and competence, there has been no comprehensive appraisal of sustainable food systems (SFS) education within dietetics and nutrition programs to date. Dietitians and nutritionists play important roles in promoting sustainability yet many perceive themselves to be inadequately trained. The purpose of this study was to explore how, and to what degree, SFS education is incorporated into accredited nutrition and dietetics programs in the United Kingdom, Australia and Canada.

A content analysis of course descriptions from program websites was conducted between 2021 and 2022. Courses were reviewed, analyzed and evaluated using a novel sustainability metric.

SFS is integrated into the education environment of some, but not all, dietetics and nutrition programs to varying degrees (no, partial and full). Partial and full integration was present in a small percentage of courses, with a larger percentage in nutrition programs. SFS education was offered more often through a single unit than a dedicated course. Twelve best practice examples of courses dedicated to SFS were identified. In the UK, their focus was nutrition and diet, contrasting food and food systems in Australia and Canada.

These findings provide insight into SFS education for professional societies, instructors and program directors. Through intentional curricular design considerations supported by this study, program leads can take small conscious reorganizational steps to integrate SFS. This study offers a sound methodology to initiate and benchmark further assessment and a novel approach for other professions looking to equip their future workforce through SFS education.

This article summarizes practitioner observations on three research questions. First, the factors that lead to the emergence and persistence of such teams. Second, the repercussions of siloed teams. And third, practical suggestions and recommendations that practitioners can employ to prevent silo formation or address existing silos. This article thus complements recent academic work that has previously explored the formation of silos.

The authors used the input of current team leads from a focus group along with their consulting experience to explore these three research questions. The team lead input and consulting expertise are integrated with academic research on silos.

The emergence and persistence of silos was mostly attributed to company characteristics (size, growth and stakeholder management) as well as communication inefficiencies (lack of role clarity and ownership within teams), which in turn were impacted by situational variables (pandemic and turnover). The authors noted the effect of team composition effects, team competition and organizational changes (rapid growth and restructuring) as potential contributors to the formation and persistence of silos. The team lead experts and our consulting experiences were congruent with the literature focused on repercussions of silos, from poor information exchanges to inefficiencies, divisions and perceived isolation of teams from the organization. Solutions focused on project organization and documentation as well as the adoption of new decision-making tools and practices, and the creation of more exchange and learning opportunities. The authors added additional options to promote more visibility, appreciation, proactive monitoring within teams and organizational identification initiatives.

The current article adds a pragmatic perspective to silos and how organizations can address these when they become problematic and hinder performance and collaboration.

This study aims to reveal residents’ individual perceptions of nature-based destination development and preferences for infrastructure and tourism superstructure development among communities that rely heavily on wildlife tourism.

A discrete choice experiment (DCE) was used among the Maasai community based in the villages and towns near the Maasai Mara National Reserve in Kenya. The attributes included type of tourism accommodation, location of tourism accommodations, types of access roads (tarmac or marram), tourist numbers and desired land-use options (between tourism development, livestock grazing and agriculture). A DCE analysis with hierarchical Bayes estimation was performed.

It revealed that the introduction to land-use restrictions and the location of tourism accommodations were the most important attributes for the respondents, with average importance values of 30.36% and 24.02%, respectively. A significant less important attribute was the types of access roads with an average importance of just 8.38%. Cluster analysis revealed widespread heterogeneity in preferences.

The survey-based DCE was conducted in the Maasai Mara National Reserve, Kenya, and therefore may not be relevant in other contexts. The focus was also only on the residents’ preferences. The findings broaden the knowledge on tourism developments and residents’ support for development and management of protected areas.

For policymakers, conservation practitioners and tourism businesses, this study provides a source of reference for understanding the development preferences of the Maasai community. In general, the study contributes to a better understanding of local communities in relations to tourism development and residents’ support for developments and management of protected areas (PAs).

This study fills the gap in the literature on tourism development and residents’ support for developments in PAs by presenting some limits of acceptable and desirable use of PAs among a community that has a complex coexistence with a wildlife tourism destination. It provides an alternative perspective for future research by examining residents’ choice towards destination development and preferences for infrastructure and tourism superstructure development using an experimental approach.

Nowadays, in building structures, dampers are connected to the building structure to reduce the damages caused by seismicity in addition to enhancing structural stability, and to connect dampers with the structure, joints are used. In this paper, three different configurations of double-lap joints were designed, developed and tested.

This paper aims to analyze three different categories of double-lap single-bolted joints that are used in connecting dampers with concrete and steel frame structures. These joints were designed and tested using computational, numerical and experimental methods. The studies were conducted to examine the reactions of the joints during loading conditions and to select the best joints for the structures that allow easy maintenance of the dampers and also withstand structural deformation when the damper is active during seismicity. Also, a computational analysis was performed on the designed joints integrated with the M25 concrete beam column junction. In this investigation, experimental study was carried out in addition to numerical and computational methods during cyclic load.

It was observed from the result that during deformation the double-base multiplate lap joint was suitable for buildings because the deformations on the joint base was negligible when compared with other joints. From the computational analysis, it was revealed that the three double joints while integrated with the beam column junction of M25 grade concrete structure, the damages induced by the double-base multiplate joint was negligible when compared with other two joints used in this study.

To prevent the collapse of the building during seismicity, dampers are used and further connecting the damper with the building structures, joints are used. In this paper, three double-lap joints in different design configuration were studied using computational, numerical and experimental techniques.

In today’s interconnected world, social capital has emerged as a crucial business competence, drawing significant attention in recent literature. Using social network analysis, this study aims to investigate the impact of network centrality, established by a firm through its board members (i.e. boardroom networks), on corporate cash holdings.

This study uses extensive panel data comprising 36,963 firm-year observations of firms listed on the Australian Securities Exchange, spanning a 22-year period (2001–2022). The study uses firm fixed-effect regression along with several alternative specifications and an instrumental variable approach to ensure the robustness of the results. Boardroom network centrality is quantified by five measures that capture different perspectives on networks as viable conduits for resource exchange and information flow: degree, two-step reach, closeness, eigenvector and betweenness.

The authors find evidence for the benefits of board networks. Firms with well-connected boards (central firms) are more likely to have smaller cash holdings. The findings also reveal distinct effects stemming from local and global properties of centrality, with local network measures playing a more pronounced role in shaping cash-holding decisions. Overall, the evidence reflects the ability of connected directors to enhance governance by limiting managerial discretion over cash reserves, thus reducing agency conflicts associated with cash holdings.

This study offers important insights for regulators, investors and practitioners, highlighting the potential for connected directors to effectively curtail managerial autonomy in deploying corporate cash holdings.

This study contributes to the ongoing discussion about the advantages and drawbacks of board networks, which constitute a vibrant and burgeoning area of research in the finance literature. It also complements scanty network-based studies on firm cash holdings. Importantly, this study extends prior work by providing robust evidence and a comprehensive analysis of the nuanced roles that board networks play in affecting the level of cash reserves.

In this research work, the general form of reliability measures, which include availability, mean time to failure (MTTF), and sensitivity analysis, are investigated with their graphical representation, which would help designers and engineers improve the reliability of the system. Along with reliability assessment, a mathematical model is developed and solved to achieve the minimum cost of the system as well as maximum reliability.

In the proposed work, a general model of a solar seed sowing machine is considered for reliability evaluation using the Markov model process. The proposed system is a series-parallel arrangement of components where three components, namely the solar panel, batteries and direct current (DC) motor, are connected in series while all the operators are connected in parallel. The implemented Markov model approach assesses several parameters of reliability, which opens the scope for improvement in reliability and other measures like mean time to failure (MTTF) and sensitivity of the proposed system. So that the machine can deliver the desired output on the field. Also, the particle swarm optimization (PSO) algorithm is applied to optimize the cost of the system with the desired level of reliability.

Implementation of PSO provides the optimal cost for the proposed system with a predetermined level of reliability, which shows the relationship between reliability and cost of the system. Also, the Markov process approach provides the availability function, reliability function, reliability at different time values, MTTF and sensitivity of the proposed system.

This work evaluates the crucial characteristics of reliability for the proposed solar seed sowing machine using the Markov model which is a stochastic model. The assessment of reliability measures such as MTTF, availability and sensitivity plays a vital role in measuring and improving the performance of the machine in the actual environment. Examining the data obtained in this research is of great importance for the manufactures and system designers. Also, the powerful optimization technique PSO is implemented to solve a non-linear mixed-integer programming problem that provides the optimal cost for the system with desired reliability.