bluuebunny/crossref_metadata_2025 huggingface dataset:
Determining safe retirement withdrawal rates using forward-looking distributions
Authors: Van Appel Vaughan , Maré Eben
Published: March 2022

An important topic for retirees is determining how much they can safely withdraw from their retirement savings: draw too much from their retirement fund and risk outliving their retirement savings, or draw too little and live below their means. For retirees to decide on the appropriate withdrawal rate, retirees need to have the tools available to decide on their spending rates. There are many factors that influence withdrawal rates, such as initial wealth, asset allocations, age, life expectancy, and risk tolerances. The topic of safe withdrawal rates aims to optimise spending rates while minimising the risk of running out of retirement savings. The focus of this study was on using forward-looking moments of the risk-neutral and real-world asset distributions in determining safe withdrawal rates for South African retirees. The use of forward-looking information, typically derived from traded derivative securities (rather than historical data), is essential in optimising safe withdrawal rates for retirees. In particular, we extracted the forwardlooking risk-neutral and real-world distributions from option prices on the South African Top 40 index, and used the moments of the distributions as a signal in a simple tactical asset allocation framework. That is, when we expect the growth asset to decrease in value, we hold cash (or short the asset) and, alternatively, when we expect the growth asset to increase in value, we hold the growth asset for the period. Using this approach, we found that we can sustain withdrawal rates of up to 7% compared to the commonly quoted 4% safe withdrawal rate obtained by historical simulations.
Significance:

Through this paper, we aim to create further awareness on safe retirement spending rates. It is important that retirees are guided through this process with the correct knowledge of the risk and return of asset classes.
Using forward-looking information allows for a more realistic modelling of portfolio returns, which allows for the possibility of better modelling of safe withdrawal rates.
We show that using the moments of the forward-looking distributions in a simple tactical asset allocation framework yielded superior portfolio returns to a fixed asset allocation structure.
Impact of land-use changes on ant communities and the retention of ecosystem services in Rashad District, Southern Kordofan, Sudan
Authors: Eisawi Khalid A.E. , Subedi Indra P. , Shaheen Tayyab , He Hong
Published: March 2022

The ecological consequences of biodiversity loss are usually the reduction of ecosystem functions. These responses, however, differ depending on the type of land-use change and the ecological setting. We investigated the impact of land-use type and ecosystem functions on the ant assemblage of Rashad District, Sudan. We analysed the effects of three different land uses (soy monoculture, pasture and organic production of vegetables) on the ant community by assessing ant composition in 176 different locations. The collection sites were conventional soy monoculture, pastures, organic agriculture, and native vegetation such as Campo, Kubos, and forests. We recorded 264 ant species on the soil surface of the Rashad District, where 342 to 354 species were thought to exist. Pastures and organic agriculture areas have 61% and 56% of the native myrmecofauna, respectively, while conventional soy monoculture areas are home to only 17% of native ant species. Forest areas present a unique community, and soy monoculture areas have the strongest pattern of biotic homogenisation. We also detected that rare species (of low frequency) were the chief promoters of richness in the Rashad District, and the most threatened with local extinction, due to their low density and low occurrence in agrosystems. Overall, we found that agricultural expansion reduces ant diversity, particularly in soybean crops, and can affect ecosystem functions. To mitigate the reduction in the ant assemblage, we recommend the conservation of multiple natural habitats.
Significance:

Agricultural land conversion and climate change play a major role in shaping tropical landscapes, but the direct and indirect links to biodiversity and species community composition remain poorly understood.
Ant richness is correlated with biomass, demonstrating that the effects on ecosystem function are dependent on the particularities of each assessed function (such as resource type), the types of land uses, and the abundance of ants in the region.
Land-use effects on ant diversity were strongly scale dependent.
The highest ant diversity occurred in soy monoculture areas.
Effects of browse legume species addition on nutritional composition, fermentation characteristics and aerobic stability of Opuntia cladodes silage
Authors: Matlabe Gopolang , Mokoboki Hilda K. , Sebola Amenda N. , Lebopa Cornelia K. , Ravhuhali Khuliso E. , Hawu Onke
Published: March 2022

Forage legumes are commonly used as an absorbent additive in high-moisture silages. Thus this study was carried out to assess the nutritive value, fermentation characteristics and aerobic stability of Opuntia–legume browse mixed silages. Five browse legume species (Leucaena leucocephala, Acacia mellifera, Searsia lancea, Prosopis velutina, and Grewia flava) were mixed with Opuntia cladodes. The silage mixture was formulated at a ratio of 60 Opuntia cladodes: 40 leguminous browse species and ensiled in polythene bags and kept in a laboratory for 42 days to determine chemical composition and fermentation characteristics. Silage samples were also subjected to an aerobic stability test. One-way analysis of variance in a completely randomised design was used to analyse the data. The pH values for silages made from Opuntia cladodes with L. leucocephala, A. mellifera and G. flava were lower than 4.8, which is considered an indicator of good-quality silage. The water-soluble carbohydrates content of silages made with Opuntia cladodes and S. lancea and G. flava was within the range of 8–12 g/kg dry matter, which is sufficient for good fermentation. The highest CO2 production, which signifies poor aerobic stability, was recorded for the control silage (Opuntia) compared to all Opuntia–legume mixed silage treatments. The addition of legume browse leaf-meal to Opuntia cladodes improved nutritive value, fermentation characteristics, and silage quality. Therefore, despite some limitations, Opuntia–legume browse silages, particularly Opuntia–G. flava and Opuntia–L. leucocephala, proved to be beneficial for livestock, as they meet the nutritional requirement of a ruminant.
Significance:This study underlines the importance of co-ensiling Opuntia cladodes and high protein legume browse hay to offer an alternative feeding strategy for ruminant livestock and ensure sustainable provision of high-quality feed during dry periods.
[RETRACTED] Keto Now Canada Reviews (Pros Or Cons) Serious Scam Pills Dangers or Is It Legit? v1
Authors: not provided acvsuperslimtry
Published: March 2022

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[RETRACTED] Natures Only CBD Gummies [Shark Tank Alert]: Price & Ingredients Update 2022 v1
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Published: March 2022

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Authors: not provided ketolihtplusreviews
Published: March 2022

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Authors: not provided jamiestultzs
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Yeast Transformation Protocol v1
Authors: Nayak Sudhir
Published: March 2022

This protocol is based on Gietz, R.D. and R.A. Woods. (2002) TRANSFORMATION OF YEAST BY THE Liac/SS CARRIER DNA/PEG METHOD. Methods in Enzymology 350: 87-96. Some steps of this protocol are based on information obtained from: http://www.umanitoba.ca/faculties/medicine/biochem/gietz/ This protocol is generalized and not to be considered optimal for all strains, conditions, and applications. Some aspects of this protocol may have to be modified significantly to suit your particular needs. It works for simple transformation, targeting in yeast, GAP repair, and multi-plasmid transformations for two-hybrid.
What Do I Do in a World of Artificial Intelligence? Investigating the Impact of Substitutive Decision-Making AI Systems on Employees' Professional Role Identity
Authors: Strich Franz ,   University of Bayreuth, Germany, Mayer Anne-Sophie ,   University of Passau, Germany, Fiedler Marina ,   University of Passau, Germany
Published: March 2022

Artificial intelligence (AI) systems in the workplace increasingly substitute for employees’ tasks, responsibilities, and decision-making. Consequently, employees must relinquish core activities of their work processes without the ability to interact with the AI system (e.g., to influence decision-making processes or adapt or overrule decision-making outcomes). To deepen our understanding of how substitutive decision-making AI systems affect employees’ professional role identity and how employees adapt their identity in response to the system, we conducted an in-depth case study of a company in the area of loan consulting. We qualitatively analyzed more than 60 interviews with employees and managers. Our research contributes to the literature on IS and identity by disclosing mechanisms through which employees strengthen and protect their professional role identity despite being unable to directly interact with the AI system. Further, we highlight the boundary conditions for introducing an AI system and contribute to the body of empirical research on the potential downsides of AI.
Knowledge Management System Use as a Key Driver of Professional and Organizational Cognitive Engagement
Authors: Iyengar Kishen ,   OM & IS Department, College of Business, Northern Illinois University, USA, Montealegre Ramiro ,   Leeds School of Business, University of Colorado at Boulder, USA
Published: March 2022

This study aims to contribute to the literature on knowledge management systems (KMS) through investigating the role of engagement as an important intermediary in the relationship between KMS use and outcomes. Building on prior literature, we propose a theoretical model that conceptualizes KMS use as a valuable resource and distinguish between two types of cognitive engagement: professional cognitive engagement and organizational cognitive engagement. These, in turn, mediate the KMS use-job performance and KMS use-organizational commitment relationships. We tested the model on a sample of 3354 real estate agents using an extensive dataset comprised of primary and secondary data. The findings show that KMS use has an impact on individuals’ professional and organizational cognitive engagement, which then impacts their job performance and organizational commitment. However, our findings indicate that professional cognitive engagement only partially mediates the relationship between KMS use and job performance. We conclude the paper with a discussion of theoretical contributions and practical implications.
Special Issue Editorial: Information Systems Research in the Age of Smart Services
Authors: Yang Yu-chen ,   National Sun Yat-sen University, Taiwan, Ying Hao ,   The Chinese University of Hong Kong, Hong Kong, Jin Yong ,   The Hong Kong Polytechnic University, Hong Kong, Cheng Hsing Kenneth ,   University of Florida, USA, Liang Ting-Peng ,   National Sun Yat-sen University, Taiwan
Published: March 2022

The rapid expansion of innovative smart technologies is creating exciting new opportunities and causing disruptions in many different sectors, including manufacturing, finance, insurance, and healthcare. Given its broad impacts across a variety of areas, smart technologies currently represent one of the hottest topics in both academia and industry. This special issue seeks to identify the latest trends and research directions on this topic by presenting research on the development, evaluation, management, and organization of smart technologies in the age of smart services. We identify three trending categories of smart services: (1) the Internet of Things and wearable technologies, (2) the sharing economy and platforms, and (3) intelligent agents. These innovative technologies and their corresponding production possibilities are of great interest to both researchers and practitioners, particularly in terms of their impacts under different application scenarios. This special issue offers a comprehensive review of IT-enabled smart services and we hope that it motivates further IS research on the theoretical and practical implications of this topic.
Disaggregating the Differential Impact of Healthcare IT in Complex Care Delivery: Insights from Field Research in Chronic Care
Authors: Aron Ravi ,   University of Houston, USA, Pathak Praveen ,   University of Florida, USA
Published: March 2022

This study focuses on the impact of digitizing medical information on the efficiency and perceived quality of chronic care delivery at the individual physician level. This study extends the theory of task technology fit to activity systems consisting of highly interdependent tasks. We find that the outcomes of efficiency and quality gains are driven by the structure of interdependencies between tasks that physicians perform. While structured information plays a key role in enabling both decision-making and task execution, we find that physician-created semistructured information is also an important predictor of both efficiency and quality gains. We show that the structure of activity systems (task interdependencies) has a strong moderating influence on the factors that drive efficiency and quality gains. We find that digitization enables physicians to preprocess patients’ records prior to their visit which in turn drives gains in both the efficiency and the perceived quality of care delivered.
The Effect of Risk Representation Using Colors and Symbols in Business Process Models on Operational Risk Management Performance
Authors: Kummer Tyge-F. ,   QUT Business School, Queensland University of Technology, Australia, Mendling Jan ,   Vienna University of Economics and Business, Austria
Published: March 2022

The operational management of risk and internal controls (RIC) makes increasing use of visual representations to support tasks such as risk assessment and control activity definition. The strengths and weaknesses of different representations are typically assessed by cognitive theories that assume an analytical and an intuitive mode of information processing. Previous research has focused mainly on the analytical risk assessment while intuitive information processing has largely been neglected. We develop a theoretical argument based on dual-process theory, which explains why RIC representational alternatives influence different levels of information processing. We test our hypotheses with the help of an online experiment using accountants and operation managers recruited via MTurk (N = 166). Our results suggest that highlighting risk and controls in business process modeling and notation (BPMN) by using color improves risk understanding, control understanding, and the identification of control improvements, which help reduce the risk in a given process. Furthermore, we do not find evidence that the inclusion of color leads to perception biases. This has implications for information systems research, which has primarily addressed the analytical processing of conceptual models. Our findings extend cognitive research on such models by adding an intuitive processing path that can improve the user’s risk management performance. For practitioners, our findings are particularly relevant because colors can be easily added as a secondary notation element without disguising the factual risk situation in processes.
How Foreign and Domestic Firms Differ in Leveraging IT-Enabled Supply Chain Information Integration in BOP Markets: The Role of Supplier and Client Business Collaboration
Authors: Khuntia Jiban ,   Business School, University of Colorado Denver, USA, Kathuria Abhishek ,   Indian School of Business, India, Andrade-Rojas Mariana Giovanna ,   Nanyang Business School, Nanyang Technological University, Singapore / Terry College of Business, University of Georgia, USA, Saldanha Terence J. V. ,   Terry College of Business, University of Georgia, USA, Celly Nikhil ,   Bauer College of Business, University of Houston, USA
Published: March 2022

Although attractive to foreign and domestic firms, bottom-of-pyramid (BOP) markets pose unique challenges. Research suggests that IT-enabled supply chain information integration (IT-SCII) helps firms collaborate with suppliers and clients in broad business activities, operate in a unique context, and overcome salient challenges in BOP markets. Anecdotal evidence and research suggest that foreign and domestic firms have differing advantages: While foreign firms have considerable global experience, domestic firms have substantial local market knowledge. We draw on the ownership-location-internalization (OLI) framework to theorize that domestic and foreign firms leverage IT-SCII differently because of their differing ownership-based advantages in BOP markets. We hypothesize that the influence of IT-SCII on client business collaboration and the influence of client business collaboration on firm performance are stronger for domestic firms than for foreign firms. Conversely, we hypothesize that the influence of IT-SCII on supplier business collaboration and the influence of supplier business collaboration on firm performance are stronger for foreign firms than for domestic firms. We test our hypotheses in the automotive parts manufacturing BOP market comprising foreign and domestic firms in India. Partial least squares and econometric analyses of 172 firms reveal broad support for our hypotheses. By incorporating the OLI framework into IT-enabled supply chain literature, our study contributes to theory and practice by highlighting that IT-SCII has differing implications for foreign and domestic firms in BOP markets.
Understanding Information Security Policy Violation from a Situational Action Perspective
Authors: Li Han ,   Anderson School of Management, The University of New Mexico, USA, Luo Xin (Robert) ,   Corresponding author, Anderson School of Management, The University of New Mexico, USA, Chen Yan ,   College of Business, Florida International University, USA
Published: March 2022

Insiders’ negligence or abuse is regarded as a leading cause of information security breaches in organizations. As most of the extant studies have largely examined insider threats at a high level of abstraction, the role of situational moral reasoning for information security policy (ISP) violations in specific situations has received little attention. To advance this line of research, this paper opens up a potentially fruitful path for IS researchers by applying situational action theory (SAT) to contextually examine why employees violate ISPs in particular situations. We consider the violations of password security policy, internet use policy, and confidential data security policy, and examine specific violation intents ranging from altruistic to malicious. The results support most of the assertions derived from SAT. We found situational moral beliefs to be the predominant driver for ISP violations across three situations in an organizational setting. However, the moderation effect of moral beliefs was only significant in situations involving sharing passwords and selling confidential data. Sanction certainty and sanction severity were also found to have different effects across situations. We conclude by presenting implications for IS security practitioners and suggestions for future research.
Mitigating Information Asymmetry to Achieve Crowdfunding Success: Signaling and Online Communication
Authors: Wang Nianxin ,   School of Economics and Management, Jiangsu University of Science and Technology, China, Liang Huigang ,   Department of Business Information and Technology, University of Memphis, USA, Xue Yajiong ,   Department of Management Information Systems, East Carolina University, USA, Ge Shilun ,   School of Economics and Management, Jiangsu University of Science and Technology, China
Published: March 2022

This paper examines how signals and the herding factor originating from multiple sources complement or substitute for each other’s effects in the crowdfunding context. Drawing on the elaboration likelihood model, we propose that signals from campaigns (videos) and creators (experience) can mitigate information asymmetry concerns about project quality and creator credibility and that creator-originating signals offset the effect of campaign-originating signals on crowdfunding success. Further, we posit that online communication between creators and backers (backer comments and creator replies) complements or substitutes for the effects of signals originating from the campaign or creator. We collected and analyzed objective data on 9,884 crowdfunding projects from a major reward-based crowdfunding platform in China and were able to confirm most of our hypotheses.
Managing Information Security Outsourcing in a Dynamic Cooperation Environment
Authors: Wu Yong ,   Glorious Sun School of Business & Management, Donghua University, China, Tayi Giri Kumar ,   School of Business, State University of New York at Albany, USA, Feng Genzhong ,   Corresponding author, School of Management, Xi’an Jiaotong University, China, Fung Richard Y. K. ,   School of Management, Xi’an Jiaotong University, China
Published: March 2022

To efficiently manage information security, firms typically outsource part of their security functions to a managed security service provider (MSSP) under a variety of contractual arrangements. Based on this practice, we study a business setting in which the management of security outsourcing depends on the security efforts of both the MSSP and its clients, taking into account that their allocation of efforts can change during the contract horizon. Since their efforts are private to each other, a double moral hazard (DMH) problem can arise with the use of bilateral refund contracts, which have been widely adopted in the MSSP industry. Moreover, both the high probability of undirected attacks and system interdependency can exacerbate the DMH problem. We propose two new types of contracts to solve this problem. One is a monitoring contract, in which a cyberinsurance firm monitors the security efforts of the MSSP and its clients. The other is a liability contract, in which both parties take full liability for breaches through rewarding clients who are well protected and penalizing clients who end up being breached by hackers. Our findings show that monitoring contracts can only solve the DMH problem when variable monitoring costs are negligible. Liability contracts can also solve the DMH problem and are worth implementing when an MSSP encounters (1) a high probability of undirected attack, (2) high system interdependency, (3) a long contract horizon, or (4) when both parties have nearly equal responsibility over the course of the contract horizon. We also compare the proposed contracts in two additional settings: when the MSSP has a spillover effect and when the MSSP serves three or more clients.
Research Perspectives: Improving Action Research by Integrating Methods
Authors: Davison Robert M. ,   Dept. of Information Systems, City University of Hong Kong, Hong Kong, Martinsons Maris G. ,   Dept. of Management, City University of Hong Kong, Hong Kong, Malaurent Julien ,   ESSEC Business School, France
Published: March 2022

Action research (AR) has developed extensively since the 1970s. We reviewed the AR literature within the information systems (IS) discipline and found 16 different methods, which constitutes a problematic situation for researchers. We describe and critique those methods before integrating their strengths to improve the AR method that is most frequently practiced in IS: canonical action research (CAR). The existing set of principles and criteria for CAR is modified and elaborated to enhance the foundation for undertaking AR consistently. We discuss the general implications of this improved form of the method, which we name integrated action research (IAR). We specifically suggest how IAR can be used to investigate the application of disruptive technologies, including those that embody artificial intelligence and enable more flexible and socially distanced work.
A Thought-Gear Model of Theorizing from Literature
Authors: Leidner Dorothy E. ,   Baylor University, USA, Tona Olgerta ,   University of Gothenburg, Sweden
Published: March 2022

The aim of this editorial is to provide a worm’s-eye view of the theorizing process, by which we mean a detailed explanation of the activities and phases involved in theory development based on literature. We develop and explain by example a model of theorizing for developing new theories. The model comprises theory genesis, four thought-gears—namely Informing Thoughts, Generating Thoughts, Materializing Thoughts, and Building Theory Elements from Thoughts—culminating in theory composition. While the theorizing model was developed based on our experience creating grand theory, we believe it can be applied to the development of other forms of theory.
Taking Time into Account: Understanding Microworkers’ Continued Participation in Microtasks
Authors: Jiang Ling ,   York University, Canada, Wagner Christian ,   City University of Hong Kong, Hong Kong, Chen Xingyu ,   Shenzhen University, China
Published: March 2022

Microtask crowdsourcing platforms foster digital assembly lines where microtasks are performed by on-demand microworkers. The sustainability of microtask crowdsourcing platforms and the timely completion of microtask batches hinge on microworkers’ continued participation, but our understanding of microworkers’ continuance remains unclear. Drawing on the theory of the allocation of time and the research on work motivational orientations, we hypothesize that three motivational orientations (i.e., compensation, enjoyment, and microtime structure) are positively associated with microworkers’ perceived relative advantage of microworking, which in turn enhances microworkers’ intent to continue microworking. The relationships between the three motivational orientations and relative advantage are moderated by microworkers’ perceived situational boredom and microwork status (i.e., ad hoc, part-time, and full-time). An online survey on Amazon’s Mechanical Turk provides empirical evidence for the predictive powers, which are contingent on situational boredom, of the three motivational orientations on relative advantage, suggesting that fine-grained microtasks cater to the inherent desire to structure time at a microlevel. We further found that the relationships between motivational orientations and relative advantage differ across ad hoc, part-time, and full-time microworkers. Our study sheds light on theorizing users’ participation by incorporating the time lens and distinguishing heterogeneous effects across temporal contexts and user types. Our findings also provide important practical implications for the design and organization of microwork as well as the governance of the crowdsourcing platform.
Texting with Humanlike Conversational Agents: Designing for Anthropomorphism
Authors: Seeger Anna-Maria ,   University of Mannheim, Germany, Pfeiffer Jella ,   Justus Liebig University Giessen, Germany, Heinzl Armin ,   University of Mannheim, Germany
Published: March 2022

Conversational agents (CAs) are natural language user interfaces that emulate human-to-human communication. Because of this emulation, research on CAs is inseparably linked to questions about anthropomorphism—the attribution of human qualities, including consciousness, intentions, and emotions, to nonhuman agents. Past research has demonstrated that anthropomorphism affects human perception and behavior in human-computer interactions by, for example, increasing trust and connectedness or stimulating social response behaviors. Based on the psychological theory of anthropomorphism and related research on computer interface design, we develop a theoretical framework for designing anthropomorphic CAs. We identify three groups of factors that stimulate anthropomorphism: technology design-related factors, task-related factors, and individual factors. Our findings from an online experiment support the derived framework but also reveal novel yet counterintuitive insights. In particular, we demonstrate that not all combinations of anthropomorphic technology design cues increase perceived anthropomorphism. For example, we find that using only nonverbal cues harms anthropomorphism; however, this effect becomes positive when nonverbal cues are complemented with verbal or human identity cues. We also find that CAs’ disposition to complete computerlike versus humanlike tasks and individuals’ disposition to anthropomorphize greatly affect perceived anthropomorphism. This work advances our understanding of anthropomorphism and contextualizes the theory of anthropomorphism within the IS discipline. We advise on the directions that research and practice should take to find the sweet spot for anthropomorphic CA design.
An Activity Theory Approach to Leak Detection and Mitigation in Patient Health Information (PHI)
Authors: Valecha Rohit ,   University of Texas at San Antonio, USA, Upadhyaya Shambhu ,   State University of New York at Buffalo, USA, Rao H. Raghav ,   University of Texas at San Antonio, USA
Published: March 2022

The migration to electronic health records (EHR) in the healthcare industry has raised issues with respect to security and privacy. One issue that has become a concern for healthcare providers, insurance companies, and pharmacies is patient health information (PHI) leaks because PHI leaks can lead to violation of privacy laws, which protect the privacy of individuals’ identifiable health information, potentially resulting in a healthcare crisis. This study explores the issue of PHI leaks from an access control viewpoint. We utilize access control policies and PHI leak scenarios derived from semi structured interviews with four healthcare practitioners and use the lens of activity theory to articulate the design of an access control model for detecting and mitigating PHI leaks. Subsequently, we follow up with a prototype as a proof of concept.
Social Networking Site Use Resumption: A Model of Return Migration
Authors: Maier Christian ,   University of Bamberg, Germany, Laumer Sven ,   Friedrich-Alexander Universität Erlangen-Nürnberg, Germany, Thatcher Jason Bennett ,   Temple University, USA, Sun Heshan ,   Price College of Business, University of Oklahoma, USA, Weinert Christoph ,   University of Bamberg, Germany, Weitzel Tim ,   University of Bamberg, Germany
Published: March 2022

This research explains why individuals resume using social networking sites (SNSs) after terminating their use. Drawing on return migration theory, we developed a theory-driven model of SNS resumption that includes two novel antecedents of SNS resumption behavior: nonuse-related dissatisfaction and use-related satisfaction. We also hypothesize that dispositional resistance to change moderates the impact of nonuse-related dissatisfaction and use-related satisfaction on resumption. We used a mixed methods approach to refine and evaluate the research model. Study 1 used the critical incident method to identify SNS-specific antecedents of nonuse-related satisfaction and use-related satisfaction, allowing us to refine the research model. Study 2 used structural equation modeling to evaluate our research model using two three-wave surveys: one with recent ex-users who recently decided to stop using and delete their profiles on Facebook and one with long-standing ex-users who stopped using and deleted their profiles on Facebook a long time ago. We found support for most relationships in our model: nonuse-related dissatisfaction and use-related satisfaction drive resumption intentions, and dispositional resistance moderates these relationships. Furthermore, we found that the time elapsed since users discontinued Facebook moderated these relationships such that the effect of nonuse-related dissatisfaction on resumption intention is stronger for recent ex-users and the effect of use-related satisfaction is stronger for long-standing ex-users. Our findings advance the understanding of resumption, an understudied behavior of the IT lifecycle and IT use and acceptance research.
When IT Evolves Beyond Community Needs: Coevolution of Bottom-Up IT Innovation and Communities
Authors: Zorina Aljona ,   Leeds University Business School, Leeds, UK, Karanasios Stan ,   University of Queensland Business School, Brisbane, Australia
Published: March 2022

This paper examines how innovative uses of IT artifacts and their repurposing to fulfill emerging or unsatisfied user needs (bottom-up innovation, BUI) develop in community settings. Based on a longitudinal analysis of “HomeNets,” communities that developed residential internet access in Belarus over a 20-year period, we illustrate that the development of community BUI is driven not only by the needs of the innovating members but also by the interplay between the innovating members’ community context and technology and the interplay between the BUI technology and context. We demonstrate how these dynamics trigger community BUI development that goes beyond the needs and expectations of the innovating actors and impacts community evolution and long-term survival. Based on our findings, we develop a model of community BUI development. We discuss the theoretical implications of our findings, highlighting the role of technology and context in community BUI and its processual unfolding beyond the needs and intentions of the innovating members.
Impact of Social Media on the Firm’s Knowledge Exploration and Knowledge Exploitation: The Role of Business Analytics Talent
Authors: Castillo Ana ,   University of Granada, Spain, Benitez Jose ,   EDHEC Business School, France, Liorens Javier ,   University of Granada, Spain, Braojos Jessica ,   Ramon Llull University / University of Granada, Spain
Published: March 2022

Social media is one of the most disruptive technologies in executing a firm’s digital business transformation strategies. Does the firm’s ability to use social media affect its proficiency in exploring and exploiting knowledge? What should be the role of business analytics talent in this equation? We study theoretically and empirically these cutting-edge research questions. Our proposed research model argues that social media capability enables the development of knowledge exploration and knowledge exploitation, and business analytics talent exerts a positive reinforcing role in the impact of social media on knowledge exploration. We empirically tested the proposed research model with a secondary dataset from a sample of US firms using PLS path modeling. After running a robustness test by estimating eight alternatives/competing models, the empirical analysis revealed that social media capability is positively related to knowledge exploration and knowledge exploitation, but with a stronger effect on knowledge exploration. Moreover, business analytics talent plays a positive moderator role in the relationship between social media capability and knowledge exploration. This study contributes to the IS research by (1) introducing, developing, and operationalizing the concepts of social media capability and business analytics talent; and (2) theoretically arguing and empirically showing the pivotal role of social media capability in exploring new knowledge and the complementary role of business analytics talent. Our study also provides several critical lessons learned for top executives and proposes promising future IS research avenues.
Research Perspectives: The Quest for Innovation in Information Systems Research: Recognizing, Stimulating, and Promoting Nkovel and Useful Knowledge
Authors: Grover Varun ,   Walton College of Business, University of Arkansas, USA, Niederman Fred ,   Chaifetz School of Business, St. Louis University, USA
Published: March 2022

Research in information systems (IS) is often challenged during the review process with “what’s new” and the “so what” questions. While we believe that there is innovation in IS research, constituents in the field do not have a good or at least consistent understanding of what this entails. This creates a problem for editors, authors, and reviewers in assessing how innovative a study is or what aspects of the work are indeed innovative. This paper is a response to this concern that takes on the challenging task of recognizing innovation in IS research. At the most basic level, we offer a structure that examines a variety of ways that innovation may be manifested in our research output. We describe, illustrate, and discuss the challenges of using our categories of innovative research. We hope that such identification can stimulate and expand our capacity to generate innovative research and to recognize (and promote) it when it is forthcoming.
A Representation Theory Perspective on the Repurposing of Personal Technologies for Work-Related Tasks
Authors: Burleson James ,   California Polytechnic State University, USA, Grover Varun ,   University of Arkansas, USA, Thatcher Jason Bennett ,   Temple University, USA, Sun Heshan ,   University of Oklahoma, USA
Published: March 2022

Individuals often blur the line between technologies used for personal means and those used to complete work-related tasks. The increasing level of capabilities offered by personal technologies presents opportunities to repurpose them for work. With guidance from representation theory, we describe how cross-context representational fidelity predicts repurposing intentions across domains of use (e.g., personal to work-related). An empirical study of 311 full-time employees demonstrates that congruence between prior technology use and potential work use increases an individual’s belief that a technology can be useful for work purposes. Furthermore, we show that, in repurposing situations, usefulness is also influenced by an individual’s confidence in using the technology on a work device(s). These findings, among others, shed new light on our understanding of the influence of experience on repurposing technologies for use in the professional domain.
Research Perspectives: From Other Worlds: Speculative Engagement Through Digital Geographies
Authors: Hovorka Dirk S. ,   University of Sydney, Australia, Peter Sandra ,   University of Sydney, Australia
Published: March 2022

Our ability to predict, explain, or control sociotechnical realities is being increasingly called into question by unprecedented phenomena in surveillance, in markets, and in other social and political domains. The apparatus of research - our current categories, instruments, arguments, and epistemic choices - rely on what is empirically accessible, i.e., on the past. Our research orientation toward the future assumes continuity and the extension of past patterns into a predictable and thus manageable future. In this research, we propose speculative engagement through digital geographies to make visible the processes of technological and cultural reconfiguration that result in unprecedented change. After describing the conception of “the future” in widely used research methods, we describe speculative engagement as a research orientation to disclose new categories, relationships, and values and a commitment to the performative relationships of our current research practices with potential future(s). Digital geographies are internally consistent and coherent worlds that are cognitively plausible but estranging. They are carriers of meaning and culture that underpin a broad class of methods to provide richly experienced “other worlds.” We posit principles for effective digital geographies and provide an illustrative example of a digital human artifact that estranges us from current assumptions. Finally, we argue that our approach enables researchers to engage with the future on its own terms. In this way, researchers, designers, and policy makers can open current practices to new categories, relationships, logics, and values and make visible the unprecedented reconfigurations in which our research is implicated.
The Design of a System for Online Psychosocial Care: Balancing Privacy and Accountability in Sensitive Online Healthcare Environments
Authors: Sjöström Jonas ,   Department of Informatics and Media, Uppsala University, Sweden, Ågerfalk Pär ,   Department of Informatics and Media, Uppsala University, Sweden, Hevner Alan R. ,   Muma College of Business, University of South Florida, USA
Published: March 2022

The design of sensitive online healthcare systems must balance the requirements of privacy and accountability for the good of individuals, organizations, and society. Via a design science research approach, we build and evaluate a sophisticated software system for the online provision of psychosocial healthcare to distributed and vulnerable populations. Multidisciplinary research capabilities are embedded within the system to investigate the effectiveness of online treatment protocols. Throughout the development cycles of the system, we build an emergent design theory of scrutiny that applies a multi-layer protocol to support governance of privacy and accountability in sensitive online applications. The design goal is to balance stakeholder privacy protections with the need to provide for accountable interventions in critical and well-defined care situations. The research implications for the development and governance of online applications in numerous privacy-sensitive application areas are explored
Modern methods of remote monitoring and rehabilitation of patients with cardiovascular diseases
Authors: Lyapina I. N. , Zvereva T. N. , Pomeshkina S. A.
Published: March 2022

Highlights. The review summarizes the latest achievements in the field of remote patient monitoring, highlights the main advantages and limitations of modern methods of remote monitoring and rehabilitation of patients with cardiovascular diseases.

Abstract. Devices for remote health monitoring and rehabilitation that use modern telemedicine technologies are becoming more and more widespread in cardiovascular disease management. Modern technologies are affordable and reliable assistants for healthcare professionals, they assist in monitoring patients “at home”, early detection of adverse events, and timely notification of the need for medical help. The review summarizes the latest achievements in the field of remote patient monitoring for ambulatory management, diagnostics, dynamic monitoring, and cardiac rehabilitation of patients with cardiovascular diseases. The main advantages and limitations of remote patient monitoring technologies are presented, and methods for the implementation of these technologies are discussed.
Controversial issues of type 2 myocardial infarction patients management
Authors: Kinash V. I. , Vorobev A. S. , Urvantseva I. A. , Kovalenko L. V. , Kashtalap V. V.
Published: March 2022

Highlights. The article presents relevant literary data on the epidemiology, main causes, approaches to the diagnostics and treatment of type 2 myocardial infarction patients. The authors emphasize an unfavorable prognosis in these patients due to comorbidity that leads to development of myocardial infarction. They highlight the need to improve and unify approaches to identifying this phenomenon, as well as the necessity to conduct observational and randomized studies to evaluate approaches to the treatment of type 2 myocardial infarction patients.

Abstract. The article summarizes the available data from clinical trials and current guidelines, approaches to the definition and type 2 myocardial infarction (MI) differential diagnosis in clinical practice. The attention is focused on the fundamental difference between type 1 and type 2 MI and the need to consider the comorbidities for the identification of etiological factors type 2 MI development. The lack of evidencebased medical data regarding the prognosis and effective treatment of patients with type 2 MI is emphasized. Nevertheless, such patients are characterized with high rates of overall and cardiovascular mortality in hospital and long-term disease course, as well as a high rate of readmission. Thus, there is the need for multicenter observational studies of type 2 MI patients and the development of algorithms for treatment and rehabilitation of this category of patients.
Obstructive sleep apnea and atrial fibrillation: a bidirectional relationship
Authors: Evlampieva L. G. , Kharats V. E. , Yaroslavskaya E. I.
Published: March 2022

Highlights. The data regarding the relationship between obstructive sleep apnea syndrome and atrial fibrillation were analyzed.

Abstract. The review article presents current data on the relationship between obstructive sleep apnea syndrome and atrial fibrillation. The spread of these pathological processes increases with age and is associated with a significant risk of cardiovascular complications. In this regard, this review seems to be quite relevant. Possible pathophysiological mechanisms influencing the relationship between obstructive sleep apnea syndrome and atrial fibrillation are discussed. The role of CPAP therapy - Continuous Positive Airway Pressure in the prevention and treatment of atrial fibrillation is highlighted.
Surgical treatment of vascular ring resulting in the formation of left aortic arch
Authors: Sinelnikov Yu. S. , Shekhmametyev R. M. , Vronsky A. S. , Lazarkov P. V.
Published: March 2022

Highlights. The described clinical case of surgical treatment of congenital anomaly of the aortic arch is of high interest to specialists due to the relatively late manifestation of symptoms, low incidence of the anomaly, prior surgical treatment of congenital heart disease in medical history, and characteristics of surgical intervention.

Background. The described clinical case reports successful treatment of vascular ring formed by right aortic arch with aberrant left subclavian artery. The described clinical case of surgical treatment of congenital anomaly of the aortic arch is of high interest to specialists due to the relatively late manifestation of symptoms, low incidence of the anomaly in the population, prior surgical treatment of congenital heart disease in medical history, and the outcome of surgical treatment - newly formed left aortic arch.
PENGARUH PENGGUNAAN BIOSOLAR DAN PERTAMINA DEX TERHADAP DAYA MESIN DAN EMISI GAS BUANG PADA MESIN DIESEL 4N15 COMMONRAIL
Authors: S.A. Aulia Rizky , Paryono Paryono , Nauri Imam Muda
Published: March 2022

Penelitian ini bertujuan mengetahui perbedaan daya mesin dan emisi gas buang pada mesin Diesel 4N15 commonrail pada bahan bakar Biosolar dan Pertamina dex. Penelitian ini menggunakan metode kuantitatif dengan model eksperimental quasi single subject. Metode analisis data yang digunakan adalah Uji-t berpasangan pada program SPSS 21. Hasil penelitian menunjukan kenaikan daya mesin mulai Rpm 2250 sampai 3500 selanjutnya menurun, daya maksimum dicapai pada 3500 rpm. Rata-rata emisi gas buang yang dihasilkan pada penggunaan biosolar adalah 4,05%, sedangkan Pertamina dex 1,74%. Sehingga, disimpulkan terdapat perbedaan daya mesin dan emisi gas buang yang signifikan pada penggunaan bahan bakar biosolar dan pertamina dex.