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Ulf Lundberg - One of the best experts on this subject based on the ideXlab platform.

  • a longitudinal analysis of Total Workload and women s health after childbirth
    Journal of Occupational and Environmental Medicine, 2011
    Co-Authors: Patricia M Mcgovern, Rada K Dagher, Heidi Roeber Rice, Dwenda K Gjerdingen, Bryan E Dowd, Laurie Ukestad, Ulf Lundberg
    Abstract:

    Objectives: To examine the association of women's postpartum health with Total Workload (TWL), work and personal factors in the year after childbirth. Methods: Employed women from Minneapolis and S ...

  • postpartum depressive symptoms and the combined load of paid and unpaid work a longitudinal analysis
    International Archives of Occupational and Environmental Health, 2011
    Co-Authors: Rada K Dagher, Patricia M Mcgovern, Bryan E Dowd, Ulf Lundberg
    Abstract:

    Purpose To investigate the effects of Total Workload and other work-related factors on postpartum depression in the first 6 months after childbirth, utilizing a hybrid model of health and workforce participation.

  • the science of occupational health stress psychobiology and the new world of work
    2010
    Co-Authors: Ulf Lundberg, Cary L Cooper
    Abstract:

    Preface Foreword Sir Michael Marmot, UCL Acknowledgements 1 Introduction: History of Work and Health General background and aim Work and health from an evolutionary perspective About this book 2 The New Workplace in a Rapidly Changing World Global economy and global competition Flexible organisations - flexible workers Health consequences of 'sickness presenteeism' Rationalisation Sources of stress at work 3 The New World of Work Lean manufacturing and just-in-time production Frequent restructuring Lifelong learning, work and family-life balance Long working hours and overtime The role of modern communication technology and telecommuting: work without boundaries, or endless work Diffuse distinction between work and other parts of life The challenge for health and well-being in organisations in the future A flexible workforce 4 Work as a Source of Stimulation and Health or a Cause of Distress and Illness Work-related stress models Justice Positive and negative work Job satisfaction Workaholism Type A behaviour Job strain and heart disorder Conclusion 5 Responses to Stress Mind-body interaction The neuroendocrine stress systems The cardiovascular system Coping with stress Acute stress Chronic stress Short-term versus long-term stress Importance of sleep Allostatic load Catabolic and anabolic processes 6 Stress-related Health Problems Chronic fatigue, depression, burnout Cardiovascular disorders Immune function Cognitive function Obesity, diabetes - the metabolic syndrome Musculoskeletal disorders Ulcers HIV, AIDS and cancer When should I be worried? How can any treatment be efficient? 7 Stress Hormones at Work 8 Socioeconomic Status and Health 9 Health Promotion Health intervention, stress reduction Managing stress in a changing workforce Individual interventions Healthy work Mental capital and well-being Interventions and policies Physically risky jobs Positive psychology Restorative environments and recreation Sleep Physical activity 10 Gender Differences Symptoms, health and life expectancy Work tasks Unpaid work and Total Workload Children, women and stress 11 Preventive Strategies Occupational hazards Health promotion Occupational conditions in Europe Healthy work SES and health Work-life balance What can we do to reduce stress? Comments on preventive strategies 12 The Future Workplace from a Stress-Health Perspective A changing world Work and health Stress, well-being and productivity Demographic changes in Europe and Japan Global issues References Index

  • Total Workload as related to psychological well being and symptoms in full time employed female and male white collar workers
    International Journal of Behavioral Medicine, 2006
    Co-Authors: Petra Lindfors, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Most research on the combined effects of paid and unpaid Workload has related these factors to stress, depression, and physical symptoms. Thus, comparative knowledge concerning positive aspects of human functioning, such as health and well-being and how they relate to Total Workload of employed women and men, is limited. Our aim in this study was to investigate how Total Workload including paid and unpaid work is related to psychological well-being and symptoms in full-time employed women and men. We obtained data on Workload, general symptoms, and the Ryff scales covering self-acceptance, environmental mastery, positive relations, personal growth, purpose in life, and autonomy from questionnaires mailed to a stratified sample of highly educated white-collar workers aged between 32 and 58 years. Data from women (n =430) and men (n = 400) living in partner relationships with at least one child showed that increasing hours of unpaid work was associated with decreasing levels of self-acceptance and environmental mastery in women, whereas paid work was associated with increasing levels of personal growth and decreasing levels of purpose in life. For men, paid work was associated with increasing levels of personal growth and more symptoms. We discuss factors underlying the gender-specific relationships between paid and unpaid work, psychological well-being, and symptoms.

  • Total Workload work stress and perceived symptoms in swedish male and female white collar employees
    European Journal of Public Health, 2005
    Co-Authors: Gunilla Krantz, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Background: The aim of this study was to analyse how paid work, unpaid household tasks, child care, work–child care interactions and perceived work stress are associated with reported symptoms in male and female white-collar employees. Methods: A questionnaire was mailed to 1300 men and 1300 women belonging to the white-collar sector, with at least 35 hours of regular employment a week and a participant age of between 32 and 58 years. It contained items relating to Total Workload (hours spent on paid work, unpaid household tasks and childcare), subjective indices for work stress and symptoms. The response rate was 65% (743 women; 595 men). Gender difference in symptom prevalence was tested by analyses of variance. Odds ratios were used to estimate the bivariate associations between work-related variables and symptom prevalence. A multivariate analysis estimated the effect of paid and unpaid work interaction, work–childcare interplay and possible synergy. Results: The frequency and severity of symptoms was higher in women than in men (P , 0.0001). Employed women’s health was determined by the interaction between conditions at work and household duties (OR 2.09; 1.06–4.14), whereas men responded more selectively to long working hours, i.e. .50 h/week (OR 1.61; 1.02–2.54). However, childcare (,21 h/week) appeared to have a buffer effect on the risk of a high level of symptoms in men working long hours. Conclusion: Working life and private circumstances and the interplay between them need to be taken into account to curb stress-related ill health in both men and women.

Armin Scholl - One of the best experts on this subject based on the ideXlab platform.

  • the assembly line balancing and scheduling problem with sequence dependent setup times problem extension model formulation and efficient heuristics
    OR Spectrum, 2013
    Co-Authors: Armin Scholl, Nils Boysen, Malte Fliedner
    Abstract:

    Assembly line balancing problems (ALBP) consist of distributing the Total Workload for manufacturing any unit of the products to be assembled among the work stations along a manufacturing line as used in the automotive or the electronics industries. Usually, theory assumes that, within each station, tasks can be executed in an arbitrary precedence-feasible sequence without changing station times. In practice, however, the task sequence may influence the station time considerably as sequence-dependent setups (e.g., walking distances, tool changes) have to be considered. Including this aspect leads to a joint balancing and scheduling problem, which we call SUALBSP (setup assembly line balancing and scheduling problem). In this paper, we modify the problem by modeling setups more realistically, give a new, more compact mathematical model formulation and develop effective heuristic solution procedures. Computational experiments based on existing and new data sets indicate that the new procedures outperform formerly proposed heuristics. They are able to solve problem instances of real-world size with small deviations from optimality in computation times short enough to be accepted in real-world decision support systems.

  • balancing assembly lines with variable parallel workplaces problem definition and effective solution procedure
    European Journal of Operational Research, 2009
    Co-Authors: Christian Becker, Armin Scholl
    Abstract:

    Assembly line balancing problems (ALBP) arise whenever an assembly line is configured, redesigned or adjusted. An ALBP consists of distributing the Total Workload for manufacturing any unit of the products to be assembled among the work stations along the line subject to a strict or average cycle time. Traditionally, stations are considered to be manned by one operator, respectively, or duplicated in form of identical parallel stations, each also manned by a single operator. In practice, this assumption is usually too restrictive. This is particularly true for large products like cars, trucks, busses and machines, which can be handled by several operators performing different tasks at the same time. Only restricted research has been done on such parallel workplaces within the same station though they have significant relevance in real-world assembly line settings. In this paper, we consider an extension of the basic ALBP to the case of flexible parallel workplaces (VWALBP) as they typically occur in the automobile and other industries assembling large products. The problem is defined and modelled as an integer linear program. As a solution approach a branch-and-bound procedure is proposed which also can be applied as a heuristic. Finally, computational experiments documenting the solution capabilities of the procedure are reported.

  • the assembly line balancing and scheduling problem with sequence dependent setup times problem extension model formulation and efficient heuristics
    2009
    Co-Authors: Armin Scholl, Nils Boysen, Malte Fliedner
    Abstract:

    Assembly line balancing problems (ALBP) consist of distributing the Total Workload for manufacturing any unit of the products to be assembled among the work stations along a manufacturing line as used in the automotive or the electronics industries. Usually, it is assumed in research papers that, within each station, tasks can be executed in an arbitrary precedence-feasible sequence without changing station times. In practice, however, the task sequence may influence the station time considerably as sequence-dependent setups (e.g., walking distances, tool changes, withdrawal of parts from material boxes) have to be considered. Including this aspect leads to a joint balancing and scheduling problem, which we call SUALBSP (setup assembly line balancing and scheduling problem). In this paper, we modify the problem by modeling setups more realistically, give a new, more compact mathematical model formulation and develop effective heuristic solution procedures. Computational experiments based on existing and new data sets indicate that the new procedures outperform formerly proposed heuristics and are able to solve problem instances of realworld size with small deviations from optimality in short time.

  • The sequence-dependent assembly line balancing problem
    OR Spectrum, 2006
    Co-Authors: Armin Scholl, Nils Boysen, Malte Fliedner
    Abstract:

    Assembly line balancing problems (ALBP) arise whenever an assembly line is configured, redesigned or adjusted. An ALBP consists of distributing the Total Workload for manufacturing any unit of the products to be assembled among the work stations along the line. The sequence-dependent assembly line balancing problem (SDALBP) is an extension of the standard simple assembly line balancing problem (SALBP) which has significant relevance in real-world assembly line settings. SDALBP extends the basic problem by considering sequence-dependent task times. In this paper, we define this new problem, formulate several versions of a mixed-integer program, adapt solution approaches for SALBP to SDALBP, generate test data and perform some preliminary computational experiments. As a main result, we find that applying SALBP-based search procedures is very effective, whereas modelling and solving the problem with MIP standard software is not recommendable.

  • a survey on problems and methods in generalized assembly line balancing
    European Journal of Operational Research, 2006
    Co-Authors: Christian Becker, Armin Scholl
    Abstract:

    Abstract Assembly lines are traditional and still attractive means of mass and large-scale series production. Since the early times of Henry Ford several developments took place which changed assembly lines from strictly paced and straight single-model lines to more flexible systems including, among others, lines with parallel work stations or tasks, customer-oriented mixed-model and multi-model lines, U-shaped lines as well as unpaced lines with intermediate buffers. In any case, an important decision problem, called assembly line balancing problem, arises and has to be solved when (re-) configuring an assembly line. It consists of distributing the Total Workload for manufacturing any unit of the product to be assembled among the work stations along the line. Assembly line balancing research has traditionally focused on the simple assembly line balancing problem (SALBP) which has some restricting assumptions. Recently, a lot of research work has been done in order to describe and solve more realistic generalized problems (GALBP). In this paper, we survey the developments in GALBP research.

Leeni Berntsson - One of the best experts on this subject based on the ideXlab platform.

  • Total Workload as related to psychological well being and symptoms in full time employed female and male white collar workers
    International Journal of Behavioral Medicine, 2006
    Co-Authors: Petra Lindfors, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Most research on the combined effects of paid and unpaid Workload has related these factors to stress, depression, and physical symptoms. Thus, comparative knowledge concerning positive aspects of human functioning, such as health and well-being and how they relate to Total Workload of employed women and men, is limited. Our aim in this study was to investigate how Total Workload including paid and unpaid work is related to psychological well-being and symptoms in full-time employed women and men. We obtained data on Workload, general symptoms, and the Ryff scales covering self-acceptance, environmental mastery, positive relations, personal growth, purpose in life, and autonomy from questionnaires mailed to a stratified sample of highly educated white-collar workers aged between 32 and 58 years. Data from women (n =430) and men (n = 400) living in partner relationships with at least one child showed that increasing hours of unpaid work was associated with decreasing levels of self-acceptance and environmental mastery in women, whereas paid work was associated with increasing levels of personal growth and decreasing levels of purpose in life. For men, paid work was associated with increasing levels of personal growth and more symptoms. We discuss factors underlying the gender-specific relationships between paid and unpaid work, psychological well-being, and symptoms.

  • Total Workload work stress and perceived symptoms in swedish male and female white collar employees
    European Journal of Public Health, 2005
    Co-Authors: Gunilla Krantz, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Background: The aim of this study was to analyse how paid work, unpaid household tasks, child care, work–child care interactions and perceived work stress are associated with reported symptoms in male and female white-collar employees. Methods: A questionnaire was mailed to 1300 men and 1300 women belonging to the white-collar sector, with at least 35 hours of regular employment a week and a participant age of between 32 and 58 years. It contained items relating to Total Workload (hours spent on paid work, unpaid household tasks and childcare), subjective indices for work stress and symptoms. The response rate was 65% (743 women; 595 men). Gender difference in symptom prevalence was tested by analyses of variance. Odds ratios were used to estimate the bivariate associations between work-related variables and symptom prevalence. A multivariate analysis estimated the effect of paid and unpaid work interaction, work–childcare interplay and possible synergy. Results: The frequency and severity of symptoms was higher in women than in men (P , 0.0001). Employed women’s health was determined by the interaction between conditions at work and household duties (OR 2.09; 1.06–4.14), whereas men responded more selectively to long working hours, i.e. .50 h/week (OR 1.61; 1.02–2.54). However, childcare (,21 h/week) appeared to have a buffer effect on the risk of a high level of symptoms in men working long hours. Conclusion: Working life and private circumstances and the interplay between them need to be taken into account to curb stress-related ill health in both men and women.

  • Total Workload work stress and perceived symptoms in swedish male and female white collar employees european journal of public health
    European Journal of Public Health, 2005
    Co-Authors: Gunilla Krantz, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Total Workload, work stress and perceived symptoms in Swedish male and female white-collar employees : European Journal of Public Health

  • Total Workload the distribution of paid and unpaid work as related to age occupational level and number of children among swedish male and female white collar workers workastress
    Work & Stress, 2005
    Co-Authors: Leeni Berntsson, Gunilla Krantz, Ulf Lundberg
    Abstract:

    Total Workload: the distribution of paid and unpaid work as related to age, occupational level and number of children among Swedish male and female white-collar workers : Work&Stress

Gunilla Krantz - One of the best experts on this subject based on the ideXlab platform.

  • Total Workload work stress and perceived symptoms in swedish male and female white collar employees
    European Journal of Public Health, 2005
    Co-Authors: Gunilla Krantz, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Background: The aim of this study was to analyse how paid work, unpaid household tasks, child care, work–child care interactions and perceived work stress are associated with reported symptoms in male and female white-collar employees. Methods: A questionnaire was mailed to 1300 men and 1300 women belonging to the white-collar sector, with at least 35 hours of regular employment a week and a participant age of between 32 and 58 years. It contained items relating to Total Workload (hours spent on paid work, unpaid household tasks and childcare), subjective indices for work stress and symptoms. The response rate was 65% (743 women; 595 men). Gender difference in symptom prevalence was tested by analyses of variance. Odds ratios were used to estimate the bivariate associations between work-related variables and symptom prevalence. A multivariate analysis estimated the effect of paid and unpaid work interaction, work–childcare interplay and possible synergy. Results: The frequency and severity of symptoms was higher in women than in men (P , 0.0001). Employed women’s health was determined by the interaction between conditions at work and household duties (OR 2.09; 1.06–4.14), whereas men responded more selectively to long working hours, i.e. .50 h/week (OR 1.61; 1.02–2.54). However, childcare (,21 h/week) appeared to have a buffer effect on the risk of a high level of symptoms in men working long hours. Conclusion: Working life and private circumstances and the interplay between them need to be taken into account to curb stress-related ill health in both men and women.

  • Total Workload work stress and perceived symptoms in swedish male and female white collar employees european journal of public health
    European Journal of Public Health, 2005
    Co-Authors: Gunilla Krantz, Leeni Berntsson, Ulf Lundberg
    Abstract:

    Total Workload, work stress and perceived symptoms in Swedish male and female white-collar employees : European Journal of Public Health

  • Total Workload the distribution of paid and unpaid work as related to age occupational level and number of children among swedish male and female white collar workers workastress
    Work & Stress, 2005
    Co-Authors: Leeni Berntsson, Gunilla Krantz, Ulf Lundberg
    Abstract:

    Total Workload: the distribution of paid and unpaid work as related to age, occupational level and number of children among Swedish male and female white-collar workers : Work&Stress

Christian Becker - One of the best experts on this subject based on the ideXlab platform.

  • balancing assembly lines with variable parallel workplaces problem definition and effective solution procedure
    European Journal of Operational Research, 2009
    Co-Authors: Christian Becker, Armin Scholl
    Abstract:

    Assembly line balancing problems (ALBP) arise whenever an assembly line is configured, redesigned or adjusted. An ALBP consists of distributing the Total Workload for manufacturing any unit of the products to be assembled among the work stations along the line subject to a strict or average cycle time. Traditionally, stations are considered to be manned by one operator, respectively, or duplicated in form of identical parallel stations, each also manned by a single operator. In practice, this assumption is usually too restrictive. This is particularly true for large products like cars, trucks, busses and machines, which can be handled by several operators performing different tasks at the same time. Only restricted research has been done on such parallel workplaces within the same station though they have significant relevance in real-world assembly line settings. In this paper, we consider an extension of the basic ALBP to the case of flexible parallel workplaces (VWALBP) as they typically occur in the automobile and other industries assembling large products. The problem is defined and modelled as an integer linear program. As a solution approach a branch-and-bound procedure is proposed which also can be applied as a heuristic. Finally, computational experiments documenting the solution capabilities of the procedure are reported.

  • a survey on problems and methods in generalized assembly line balancing
    European Journal of Operational Research, 2006
    Co-Authors: Christian Becker, Armin Scholl
    Abstract:

    Abstract Assembly lines are traditional and still attractive means of mass and large-scale series production. Since the early times of Henry Ford several developments took place which changed assembly lines from strictly paced and straight single-model lines to more flexible systems including, among others, lines with parallel work stations or tasks, customer-oriented mixed-model and multi-model lines, U-shaped lines as well as unpaced lines with intermediate buffers. In any case, an important decision problem, called assembly line balancing problem, arises and has to be solved when (re-) configuring an assembly line. It consists of distributing the Total Workload for manufacturing any unit of the product to be assembled among the work stations along the line. Assembly line balancing research has traditionally focused on the simple assembly line balancing problem (SALBP) which has some restricting assumptions. Recently, a lot of research work has been done in order to describe and solve more realistic generalized problems (GALBP). In this paper, we survey the developments in GALBP research.

  • state of the art exact and heuristic solution procedures for simple assembly line balancing
    European Journal of Operational Research, 2006
    Co-Authors: Armin Scholl, Christian Becker
    Abstract:

    Abstract The assembly line balancing problem arises and has to be solved when an assembly line has to be configured or redesigned. It consists of distributing the Total Workload for manufacturing any unit of the product to be assembled among the work stations along the line. The so-called simple assembly line balancing problem (SALBP), a basic version of the general problem, has attracted attention of researchers and practitioners of operations research for almost half a century. In this paper, we give an up-to-date and comprehensive survey of SALBP research with a special emphasis on recent outstanding and guiding contributions to the field.