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Purpose – This study examines the association between social integration at work and health in three societies, urban China, Taiwan, and the United States.Methodology/approach – It analyzes nationally representative survey data collected simultaneously from those three societies. It measures five indicators of social integration at work (the percentage of work contacts among daily contacts, the number of daily work contacts, the percentage of daily work contacts within the company/organization among all daily work contacts, the number of daily work contacts within the company/organization, and the percentage of work discussants within the company/organization) and two health outcomes (psychological distress and self-reported health limitation).Findings – It finds stronger evidence for the positive health effect of social integration at work in urban China than in Taiwan and the United States.Research limitations/implications – The data set has two limitations: (1) it is cross-sectional; and (2) it was collected from national samples of adults aged 21–64, currently or previously employed, and does not have information on elderly employed adults. This study implies that social integration at work is more likely to protect health in urban China than in Taiwan and the United States.

Construction firms keep minimal resources to maintain productive working capital. Hence, resources are constrained and have to be shared among multiple projects in an organization. Optimal allocation of resources is a key challenge in such situations. Several approaches and heuristics have been proposed for this task. The purpose of this paper is to compare two approaches for multi-mode resource-constrained project scheduling in a multi-project environment. These are the single-project approach (portfolio optimization) and the multi-project approach (each project is optimized individually, and then heuristic rules are used to satisfy the portfolio constraint).

A direct search algorithm called Probabilistic Global Search Lausanne is used for schedule optimization. Multiple solutions are generated that achieve different trade-offs among the three criteria, namely, time, cost and quality. Good compromise solutions among these are identified using a multi-criteria decision making method, Relaxed Restricted Pareto Version 4. The solutions obtained using the single-project and multi-project approaches are compared in order to evaluate their advantages and disadvantages. Data from two sources are used for the evaluation: modified multi-mode resource-constrained project scheduling problem data sets from the project scheduling problem library (PSPLIB) and three real case study projects in India.

Computational results prove the superiority of the single-project approach over heuristic priority rules (multi-project approach). The single-project approach identifies better solutions compared to the multi-project approach. However, the multi-project approach involves fewer optimization variables and is faster in execution.

It is feasible to adopt the single-project approach in practice; realistic resource constraints can be incorporated in a multi-objective optimization formulation; and good compromise solutions that achieve acceptable trade-offs among the conflicting objectives can be identified.

An integer programming model was developed in this research to optimize the multiple objectives in a multi-project environment considering explicit resource constraints and maximum daily costs constraints. This model was used to compare the performance of the two multi-project environment approaches. Unlike existing work in this area, the model used to predict the quality of activity execution modes is based on data collected from real construction projects.

The purpose of this paper is to explore managers’ learning-oriented leadership, and what conditions managers face when working with the promotion of employees’ learning.

Data was collected through semi-structured interviews with managers in three manufacturing firms. Verbatim expressions of the interview participants were analysed using stepwise analytical procedures.

The managers used many kinds of activities to promote learning. Most common were activities related to learning opportunities that arose during daily work. The identified activities ranged from being planned to occurring more spontaneously. Depending on the situation or the learning activity, the managers used different behaviours to promote learning. They supported, educated and confronted employees, and they acted as role models. Factors constraining the implementation of learning-oriented leadership included limited resources, and a lack of commitment from top management, employees or the managers themselves.

Future research should study learning-oriented leadership from the employees’ perspective.

Managers’ notions about learning and development constitute an important condition for learning-oriented leadership. Therefore, managers need to be trained in how to promote their employees’ learning at work.

This study adds to the limited knowledge of how managers carry out a learning-oriented leadership in their daily work. The findings contribute knowledge regarding managerial practices of promoting employees’ workplace learning by identifying different activities and behaviours that managers could incorporate into their leadership.

As sociologists we all try to make a contribution to our field. Having completed our comprehensives and dissertations we have read in depth in several areas, have focused on an area that interests us, and have learned the research process whether it uses quantitative or qualitative methodology. We all make our contributions available to the field, but occasionally one among us makes a startling discovery, has an unusual idea or a way to approach a problem, starts examining a new problem at just the right moment, or has an insight into a specific conceptual problem with unusual alacrity. A few among us combine all that skill and happenstance and lead the way into new sociological insights, new areas of research and provide a notable foundation or advancement to an area of knowledge. Saad Nagi is one of those contributors with vision, insight, and skill to see ahead of his time. This paper attempts to bring together in one place his major contributions to the disability knowledge base in sociology.

The approach used in this paper is an in depth review of all of Nagi’s published works in the area of disability. The published literature is grouped into the five areas in which Nagi made major contributions, including major research of the Social Security Disability Insurance process; development of a framework for the disability process; epidemiological definitions and research; development of a coherent set of disability measures; and an examination of the social problem, policy, and program process as developed and practiced in this country.

Nagi made a large and significant contribution in all the areas listed above and much of the measurement, and process examination is still relevant and useful in current research. His framework is still the basis for the very newest models of disability which dominate disability research today.

Researchers need to go back to find Nagi books and articles written in the 60s, 70s, and 80s to ground their work in the originals rather than to take the interpretations of others on this material. The ICF and the Social Model did not originate in Europe alone, but much of the work began in the states in the early 60s with the work of Nagi, Haber, and others and should not be overlooked or ignored.

The spatial conflicts and congestion of construction resources are challenges that lead to the reduction in efficiency. The purpose of this paper is to enable users to detect and resolve workspace conflicts by implementing four resolution strategies in a five-dimensional (5D) CAD model. In addition to resolving conflicts, the model should be able to optimize time and cost of the projects. In other words, three variables of spatial conflicts, time and cost of project are considered simultaneously in the proposed model to find the optimum solution.

In the first step, a 5D simulation model is developed that includes time, cost and geometrical information of a project. Then, time-cost trade-off analysis was carried out to distinguish optimum schedule. The schedule was imported to the 5D CAD model to detect spatial conflicts. Finally, a novel algorithm was implemented to solve identified conflicts while imposing minimum project’s time and cost. Several iterations are performed to resolve all clashes using conflict resolution algorithm and visual simulation model.

The proposed methodology in this research was applied to a real case. Results showed that in comparison to the normal and initial schedule with 19 conflicts, the finalized schedule has no conflict, while time and cost of the project are both reduced.

Implementing the proposed methodology in construction projects requires proper technical basis in this field. In this regard, the executive user should have a proper understanding of the principles, concepts and tools of building information modeling and have project management knowledge. Also, the implementation conditions of the basic model requires the determination of the construction methods, estimated volumes of working items, scheduling and technical specification. The designed methodology also has two limitations regarding to its implementation. The first is the fact that strategies should be applied manually to the schedule. The other one pertains to the number of strategies used in the research. Four strategies have been used in the conflict resolution algorithm directly and the two others (spatial divisibility and activities breakdown strategies) have been used as default strategies in the visual simulation model. Since the unused strategies including the changing of construction method and the activity resources are subjective and depend upon the planner and project manager’s personal opinion, the authors have avoided using them in this research.

The method proposed in this research contributes the coordination of the working teams at the planning and execution phases of the project. In fact, the best location and work direction for each working team is presented as a schedule, so that the space conflict may not come about and the cost can be minimized. This visual simulation not only deepens the planners’ views about the executive barriers and the spatial conditions of the worksite, it also makes the construction engineers familiar on a daily basis with their executive scope. Therefore, it considerably improves the interactions and communication of the planning and construction teams. Another advantage and application of this methodology is the use of initial and available projects’ documents including the schedule and two-dimensional drawings. The integration of these basic documents in this methodology helps identify the spatial conflicts efficiently. To achieve this, the use of the existing and widely-used construction tools has facilitated the implementation of the methodology. Using this system, planners have applied the strategies in an order of priority and can observe the results of each strategy visually and numerically in terms of time, cost and conflicts. This methodology by providing the effective resolution strategies guides the practitioner to remove conflicts while optimum time and cost are imposed to project.

Contrary to the previous models that ignore cost, the proposed model is a 5D visual simulation model, which considers the variable of cost as a main factor for conflict identification and resolution. Moreover, a forward-pass approach is introduced to implement resolution strategies that are novel compared to other investigations.

Normal aging changes, acute and chronic illness, and the long stay in the hospital made the decline in elderly physical and mental abilities in non-instrumental and Instrumental Activities Daily Livings (IADL). This paper aims to determine the validity and reliability of Lawton IADL in the Iranian elderly community relevancy to physical, mental and cognitive measurements.

A cross-sectional study with 422 participants, age 60 years old and over selected by face-to-face interviewing from the geriatric clinic, Tehran medical university from January to June 2019.

Of 422 participants referring to outpatient clinics the majority were male (62.8%); with an average of 66.9 ± 5.95 years old. Reliability was significantly high (Cronbach’s alpha = 0.96, p < 0.001). There was a significant relationship between IADL with Short-Form Health Survey36-Mental Component Score (SF36-MCS), with p < 0.01. Reliability was significantly high (Cronbach’s alpha = 0.96, p < 0.001). In the factor analysis with eigenvalues more than one, two components were found; that the first factor named as observational daily activities, whereas the second factor named “advanced daily activities”.

The limitation of this study was the low number of similar studies to compare the results and the stronger discussion.

Determining IADL's dependency in the community elderly is important to maintain their self-care manages. More studies are needed to manifest the relationship between mental health and IADL's independence. Therefore, validation in different settings is important in planning for the geriatrics team.

The purpose of this study is to analyze the impact of the acceptance of national governments’ restrictions imposed due to the COVID-19 pandemic on the citizens’ safety perceptions of daily life and future plans. In particular, the aim is to examine the relationship among the citizens who belong to Generations Y and Z and who represent the future of tourism markets, as tourists and as host communities, in three important receiving countries, namely, Egypt, Portugal and Turkey.

This pilot project gathers data from three important receiving countries located on two continents involving 348 residents from Generations Y and Z. To identify the factors underlying the “acceptance of restrictions and measures” and the “Impacts of the COVID-19 threat on safety perceptions” a factor analysis was carried out. Notably, Pearson's correlation coefficient and a multiple linear regression analysis allowed to analyze the relationships between the two factors and a Kruskal–Wallis test was used to assess the influence of individuals’ country of residence.

The results reveal that in general, young generations accepted the measures and restrictions imposed by the respective governments. In addition, the present pandemic has a strong impact on their safety perception in daily lives and future plans to travel. Moreover, results prove that between the three countries there are dissimilarities showing that the countries' situation regarding COVID-19 influences those two dimensions.

This study adds to the development of studies on the impacts of health risks in tourism activity, specifically on the safety measures adopted and their impacts on local receiving communities. It shows that the current pandemic is severely affecting the daily lives and plans for the future of citizens and tourists, which is in accordance with previous studies.

The outcome of this study paves the way for policy-makers in the tourism industry because it presents experiences from Generations Y and Z members, future customers and tourist products consumers, but also from receiving communities.

The results of this study bring some light on how local communities, specifically, the younger generations, are facing this pandemic period and on the impact it has on the way they face daily life, future plans and on their level of acceptance of a sector as important as tourism.

To the knowledge, besides the relevant studies already conducted on the impact of the COVID-19 crisis on the tourism field, no study has yet been carried out to analyze how residents have reacted and accepted the restrictions and security measures imposed by their national governments and their impact on residents’ feelings and perceptions, daily lives and travel plans. Furthermore, the specific impacts of this crisis will have on the younger generations are yet to be analyzed.

Concepts of disability have evolved over the past few decades. The focus of attention has shifted from disability as a state, a consequence of disease, to disability being included as just one of many components of health. This has been realised in part through the implementation of the International Classification of Functioning, Disability and Health (ICF). Despite these developments and increased focus in recent years, reliable disability data, particularly from low-income countries, are lacking.We present an innovative approach to measuring disability in a population that is based on some conceptual elements of the ICF, namely activity limitations and participation restrictions. The results are derived from studies on the living conditions among people with disabilities in Namibia, Zimbabwe and Malawi conducted between 2001 and 2004. From the data analysis perspective, the research challenge lies in a shift in the dependent variable from a dichotomous outcome measure (disability as a state: disabled, not disabled) to a continuous measure of activity limitations and participation restrictions – mirroring the range of disability we see in society.These measures of activity limitations and participation restrictions must however not be interpreted in isolation, but as integral to the environment, society and culture from which they are derived. This will require an expanded view of disability data and effect substantially greater measurement challenges.

This study aims to learn about the experiences of inmates who experienced long periods of isolation due to a COVID-19 outbreak in the Brians 1 penitentiary centre. This approach is relevant, as it sought to understand the experiences from the perspective of the prisoners during periods of isolation. The aim was to gain in-depth knowledge, based on the idiosyncrasies of this population, of their emotions and coping strategies in the prison context. This information that may be useful to prison institutions and prison primary healthcare teams to guide the organisation in future health emergencies involving the isolation of prisoners.

A qualitative interpretative phenomenological study was conducted. Face-to-face semi-structured interviews were conducted with a sample of 30 people who had undergone a period of isolation due to a COVID-19 outbreak in one or two of the last two outbreaks at the Brians 1 (Barcelona) prison in 2022, in the days following periods of social isolation. The interviews were transcribed and analysed using the content analysis approach, and were coded using the NVivo 12 qualitative software. The credibility and validity of the data analysed were increased through triangulation at different levels. In this study, data was collected from a heterogeneous sample of prisoners, capturing different views among the prison population.

This research gave us the opportunity to collect prisoners’ accounts of isolation due to COVID-19, in which it became clear that it conditioned the management of time and space in daily prison life. The restrictions amplified negative emotions such as anxiety, stress and restlessness and led to disruptions in communication with the outside world, daily prison activities and judicial processes. Despite these changes, the prisoners understood the imperatives of isolation and the need to adapt to the new situation for a limited period of time. Faced with the detrimental effect on their well-being, the prisoners employed coping strategies focused on emotional management, social supports and occupational engagement.

This study is subject to several limitations related to the characteristics of the sample. No women participated in the study as the modules studied were exclusively for men. People with impaired cognitive abilities, were not included. With regard to the method, it is understood that conducting the interviews in the days after the isolation may have influenced the content and enthusiasm of the participants. Despite these limitations, we are confident that the data triangulation may have given us reliable insight that will further our knowledge of prisoners’ experiences in this type of situation.

The issue of the negative impact of restrictive measures in the prison environment has rarely been studied from the perspective of prisoners. To the best of the authors’ knowledge, this study is the first to provide qualitative data on the experiences of prisoners during periods of social isolation due to COVID-19 outbreaks in prisons in Catalonia (Spain). The narratives allowed the authors to determine what impact the restrictions had on the emotional well-being and daily life of the prison population, information that can help prison institutions and healthcare teams understand how prisoners experienced this type of situation. The authors were also able to carry out an in-depth study of the coping strategies used by the prisoners to deal with negative emotions during the COVID-19 outbreaks, which may serve to guide the organisation of material and human resources in future emergencies or regimented situations involving social isolation.

The traditional network scheduling methods such as the Critical Path Method (CPM), Programme Evaluation Review Technique (PERT), and bar charting are typically not effective for the planning of linear construction projects. Linear scheduling methods, on the other hand, model the progress of repetitive activities in sloping lines and are more effective for linear modelling and analysis. Nonetheless, their use in the construction industry has so far been very limited. Among other reasons for this is the unfamiliarity of construction personnel with these techniques, which plays a major role in hampering their application. This paper introduces a graphically based approach to assist in the linear programming (LP) modelling of linear scheduling analysis. The Planning & Optimization for Linear Operations (POLO) system provides a graphic LP modelling environment in which model formulation can be easily accomplished in a graphic and interactive fashion. Thus, the application of linear scheduling methods can be facilitated. The Isle of Palms Connector Bridge project in Mount Pleasant, South Carolina is used to demonstrate the use of the system.