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This paper aims to investigate the effect of L-citrulline supplementation on blood pressure (BP) in middle-aged and elderly populations.

Three electronic databases, namely, Google Scholar, PubMed and Scopus, were searched from 1990 to November 2020. Random effects model analysis was applied for quantitative data synthesis, and 6 trials with 150 participants were identified and included in the analysis.

Results showed an overall non-significant effect of L-citrulline supplementation on both systolic BP (SBP) and diastolic BP (DBP) in middle-aged and elderly participants. However, stratified analysis indicated a significant reduction in SBP (SMD: −0.41, 95% CI: −0.84, 0.02; p = 0.06, heterogeneity p = 0.41; I2 = 10%) but not in DBP (SMD:−0.15, 95% CI: −0.57, 0.28; p = 0.51, heterogeneity p = 0.60; I2 = 0%), following longer-term (= 8 weeks) supplementation of L-citrulline. Additionally, higher doses of L-citrulline (= 6 grams) showed a marginally significant reduction in DBP (SMD: −0.38, 95% CI: −0.78, 0.02; p = 0.06, heterogeneity p = 0.50; I2 = 0%).

In conclusion, a higher dosage and longer duration of supplementation with L-citrulline may have potential BP lowering effects in populations at an increased risk of hypertension

While the literature has focused on the benefits granted by Deferred Action for Childhood Arrivals to undocumented youths in the USA, the purpose of this paper is to focus on the challenges encountered during the application process.

This paper is based on 60 semi-structured interviews with Latino undocumented youths living in the New York City and northern New Jersey metropolitan area.

The policy was intended to improve the inclusion of some undocumented youths in the USA by temporarily shielding them from deportation and providing them with a social security number. Analyses indicate great variation in youths’ experiences while applying for DACA, including program knowledge, financial impact, and application assistance – some of which was alleviated by respondents’ political engagement. This paper shows that participants suffered from anxiety due to the manner of implementation of the program.

This research is based on the self-disclosure of participants as undocumented youths. Fieldwork also took place in the New York/New Jersey metropolitan area, which is traditionally considered as more “immigrant-friendly” context than other areas of the USA.

This paper provides much needed information on the ways in which undocumented youths navigate the federal immigration system and the anxiety associated with it. This paper demonstrates the possibility that a federal policy whose goal is inclusionary could be implemented at the local level in such a way as to promote anxiety and alienation. It also highlights the role of political engagement in shaping immigrant youth’s experiences in the USA.

This article aims to provide a theoretical unifying framework for flexible organizational forms, such as so-called adhocracies and network organizations.

In this article, organization practices that are typical of the software industry are analyzed and re-interpreted by means of foundational concepts of organization science. It is shown that one and the same logic is at work in all flexible organizations.

Coordination modes can be fruitfully employed to characterize flexible organizations. In particular, standardization is key in order to obtain flexibility, provided that a novel sort of coordination by standardization is added to those that have been conceptualized hitherto.

This article highlights one necessary condition for organizations to be flexible. Further aspects, only cursorily mentioned in this paper, need to be addressed in order to obtain a complete picture.

A theory of organizational flexibility constitutes a guide for organizational design. This article suggests the non-obvious prescription that the boundary conditions of individual behavior must be standardized in order to achieve operational flexibility.

This theoretical framework can be profitably employed in management classes.

Currently, flexible organizations are only understood in terms of lists of instances. This article shows that apparently heterogeneous case-studies share common features in fact.

The purpose of this paper is to empirically examine the relationship between psychological diversity climate (PDC) and organizational identification (OID) when influenced by racial dissimilarity between the subordinate and supervisor.

Ordinary least squares hierarchical regression analysis was run for hypotheses testing.

Three of the four hypothesized relationships were supported. Support was found for the direct relationship between PDC and OID. The moderator race was significant thus also supported. The moderator of dissimilarity was not supported. Finally the three-way interaction with race and dissimilarity was supported.

OID is an important variable for overall organizational success. OID influences a wealth of organizationally relevant outcomes including turnover intentions. Considering higher turnover exists for minority employees, understanding how diversity climate perceptions vary by employee race and therefore impact OID differently, helps managers when making decisions about various initiatives.

This study is the first the authors know of to investigate the impact of dissimilarity on the PDC-OID relationship.

The purpose of this paper is to understand several key issues regarding technology strategies for the lodging industry, including the use and impact of technology, technology adoption and implementation, the role of organization technology environment in technology use, channel management strategies, as well as future trends of technology development.

Qualitative interviews are conducted with hotel practitioners to gain knowledge in order to help explore issues and generate hypotheses for future research regarding information and communications technology (ICT) applications in the lodging industry.

The research finds that technology will continue to impact guest service and customer relationship management in the lodging industry, and that companies vary in their implementation and use of the technology applications.

Using qualitative research limited the number of hotels that could be interviewed; as a result, the findings cannot be generalized to every hotel.

Hotel owners and managers can look at the various trends and determine which can help their guest service, focusing on providing added value to guests.

The paper provides insight from the viewpoints of practitioners rather than just from technology experts.

Community belongingness (CB) has been found to be positively associated with subjective well-being (SWB). Scholars have verified this connection with different social groups. In the present study, the authors are interested in the group of unemployed people and compare their situation to employed people. Specifically, the purpose of this paper is to examine whether a sense of community belonging prevents negative impacts of unemployment on SWB.

The study is based on a survey conducted in 2016. The data consists of 830 respondents from which 723 had the labor market status (LMS) of employed people and 107 had the LMS of unemployed people.

The results of this study show that there are both positive and negative factors which support or weaken CB. Interpersonal trust supports the sense of community belonging of individuals, but loneliness weakens their CB. However, unemployed people have a lower rate of CB and SWB comparing to employed people. Furthermore, CB is positively associated with SWB, but this connection is conditional in order that a high rate of CB buffers the negative impacts of unemployment.

The study emphasizes the significance of CB as a basis of SWB. On the other hand, the negative impacts of unemployment can be mitigated by supporting integration of unemployed people into social communities. From a sociopolitical view, the results underline the fact that governmental measurements promote the social inclusion of unemployed people.

The purpose of this paper is to revisit the special issue of Accounting, Auditing & Accountability Journal published in 1996 on the theme “Accounting history into the twenty‐first century”, in order to identify and assess the impact of the special issue in shaping developments in the accounting history literature, and to consider issues for future historical research in accounting.

A retrospective and prospective essay focusing on developments in the historical accounting literature.

The special issue's advocacy of critical and interpretive histories of accounting's past has influenced subsequent research, particularly within the various research themes identified in the issue. The most significant aspect of this influence has been the engagement of increasing numbers of accounting historians with theoretical perspectives and analytical frameworks.

The present study examines the content and impact of a single journal issue. It explores future research possibilities, which inevitably involves speculation.

In addressing recent developments in the literature through the lens of the special issue, the paper emphasises the unifying power of history and offers ideas, insights and reflections that may assist in stimulating originality in future studies of accounting's past.

This article provides an introduction and assessment of the English and Spanish literatures on gender relations in disaster contexts. We analyze regional patterns of differences and similarities in women’s disaster experiences and the differing research questions raised by these patterns in the scholarly and practice‐based literature. The analysis supports the claim that how gender is theorized makes a difference in public policy and practical approaches to disaster risk management. We propose new directions in the field of disaster social science and contribute a current bibliography in the emerging gender and disaster field.

The purpose of this paper is to develop a framework for reconceptualising research on school autonomy to redress the limitations of traditional research, strengthen the conceptual links between school autonomy and learning outcomes and offer a range of new strategies for studying the interplay of school autonomy, leadership and learning.

Based on a review of international studies and the findings of the Programme for International Student Assessment (PISA) and the Teaching and Learning International Study (TALIS), the conceptual limitations of and gaps in traditional research on school autonomy in relation to leadership and learning are discussed, and their implications for the development of a new framework are outlined.

The conceptual limitations of traditional research on school autonomy are as follows: internal school autonomy is insufficiently differentiated; too little attention is paid to cultural autonomy and internal structural autonomy at individual and group levels; autonomy is measured only as perceived by principals, with no attention to the perspectives of other key stakeholders; and conceptual links between school autonomy and learning outcomes are missing, leading to inconsistent findings on the effects of school autonomy on student learning. To redress these limitations, a new framework for research is developed. School autonomy is reconceptualised as a combination of functional autonomy, structural autonomy and cultural autonomy. Leadership is also reconceptualised by categorising three types of leadership activity: leadership for functional initiatives, leadership for structural initiatives and leadership for cultural initiatives. This categorisation may help to strengthen conceptions of the relevance of leadership to autonomy and performance in future research.

A typology of research strategies is developed to broaden the possibilities for implementing the reconceptualisation framework. A single-component strategy, a two-component strategy, an interaction strategy and a holistic case-study strategy are presented. Depending on the research purposes and the available resources, one or a combination of these strategies can be used to conceptualise the study of school autonomy, leadership and performance.

The new ideas and perspectives associated with the reconceptualisation framework will contribute to future research in this area on an international scale. Future PISA, TALIS and similar studies will also benefit from this reconceptualisation.

The purpose of this paper is to provide a historical account of organizational citizenship behavior (OCB) based on the existing literature.

The paper performs keywords search of published articles from 1930 to 2017 in widely used research databases.

The historical review shows that the OCB, as a field of study, was slow to develop. Although it has been introduced in the late 1970s and officially defined in the 1980s, its origins can be traced back to the 1930s. Despite this, OCB is generally regarded as a relatively new construct and has become one of the biggest subjects studied in the literature. OCB has reached far and wide into the business and management domains, supporting the fact that the well-being employees and their behaviors can greatly affect organizations’ effectiveness and performance. Having been the topic of a significant number of studies, there have been inconsistent research findings regarding the concepts. Furthermore, some concepts have been noted to overlap, with several scholars using different terms for essentially similar concepts.

The advent of technology and globalization has greatly affected organizations today which resulted in increased competition in the global business. Firms have started to look into the behavior exhibited by employees as a means of achieving competitive advantage, such as OCB. Voluminous works have been conducted regarding the study of OCB; however, none have been recorded to make an in-depth exploration of when and how it first surfaced. Since its official introduction, explorations regarding OCB have dramatically increased, most especially in the twenty-first century. Unfortunately, this has resulted in an increasing difficulty to keep up with the theoretical and empirical developments in the literature. As interest in OCB continues to grow, coherent integration of the concept becomes progressively more complex and necessary. This paper looks into the chronological evolution of the OCB, giving precise details of its development from the time it was first conceptualized up until the present wherein OCB has been used to indicate organizational effectiveness and performance.