Haluk Ay, Anthony Luscher and Carolyn Sommerich
The purpose of this study is to design and develop a testing device to simulate interaction between human hand–arm dynamics, right-angle (RA) computer-controlled power torque…
Abstract
Purpose
The purpose of this study is to design and develop a testing device to simulate interaction between human hand–arm dynamics, right-angle (RA) computer-controlled power torque tools and joint-tightening task-related variables.
Design/methodology/approach
The testing rig can simulate a variety of tools, tasks and operator conditions. The device includes custom data-acquisition electronics and graphical user interface-based software. The simulation of the human hand–arm dynamics is based on the rig’s four-bar mechanism-based design and mechanical components that provide adjustable stiffness (via pneumatic cylinder) and mass (via plates) and non-adjustable damping. The stiffness and mass values used are based on an experimentally validated hand–arm model that includes a database of model parameters. This database is with respect to gender and working posture, corresponding to experienced tool operators from a prior study.
Findings
The rig measures tool handle force and displacement responses simultaneously. Peak force and displacement coefficients of determination (R2) between rig estimations and human testing measurements were 0.98 and 0.85, respectively, for the same set of tools, tasks and operator conditions. The rig also provides predicted tool operator acceptability ratings, using a data set from a prior study of discomfort in experienced operators during torque tool use.
Research limitations/implications
Deviations from linearity may influence handle force and displacement measurements. Stiction (Coulomb friction) in the overall rig, as well as in the air cylinder piston, is neglected. The rig’s mechanical damping is not adjustable, despite the fact that human hand–arm damping varies with respect to gender and working posture. Deviations from these assumptions may affect the correlation of the handle force and displacement measurements with those of human testing for the same tool, task and operator conditions.
Practical implications
This test rig will allow the rapid assessment of the ergonomic performance of DC torque tools, saving considerable time in lineside applications and reducing the risk of worker injury. DC torque tools are an extremely effective way of increasing production rate and improving torque accuracy. Being a complex dynamic system, however, the performance of DC torque tools varies in each application. Changes in worker mass, damping and stiffness, as well as joint stiffness and tool program, make each application unique. This test rig models all of these factors and allows quick assessment.
Social implications
The use of this tool test rig will help to identify and understand risk factors that contribute to musculoskeletal disorders (MSDs) associated with the use of torque tools. Tool operators are subjected to large impulsive handle reaction forces, as joint torque builds up while tightening a fastener. Repeated exposure to such forces is associated with muscle soreness, fatigue and physical stress which are also risk factors for upper extremity injuries (MSDs; e.g. tendinosis, myofascial pain). Eccentric exercise exertions are known to cause damage to muscle tissue in untrained individuals and affect subsequent performance.
Originality/value
The rig provides a novel means for quantitative, repeatable dynamic evaluation of RA powered torque tools and objective selection of tightening programs. Compared to current static tool assessment methods, dynamic testing provides a more realistic tool assessment relative to the tool operator’s experience. This may lead to improvements in tool or controller design and reduction in associated musculoskeletal discomfort in operators.
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Phyllis Moen and Francille M. Firebaugh
Titmus defines “policy” as “the principles that govern action directed towards given ends”. Höhn and Lüscher define family policy as “public activities, measures, and…
Abstract
Titmus defines “policy” as “the principles that govern action directed towards given ends”. Höhn and Lüscher define family policy as “public activities, measures, and organizations that attempt to recognize, support, complement, and thus influence or even enforce specifically or generally defined achievements of the family”. Thus family policy can include a wide range of activities of governments and organizations, including private associations, that seek to transform families and increase family well‐being.
Aaron Clark-Ginsberg, Lena C. Easton-Calabria, Sonny S. Patel, Jay Balagna and Leslie A. Payne
Disaster management agencies are mandated to reduce risk for the populations that they serve. Yet, inequities in how they function may result in their activities creating disaster…
Abstract
Purpose
Disaster management agencies are mandated to reduce risk for the populations that they serve. Yet, inequities in how they function may result in their activities creating disaster risk, particularly for already vulnerable and marginalized populations. In this article, how disaster management agencies create disaster risk for vulnerable and marginalized groups is examined, seeking to show the ways existing policies affect communities, and provide recommendations on policy and future research.
Design/methodology/approach
The authors undertook a systematic review of the US disaster management agency, Federal Emergency Management Agency (FEMA), examining its programs through a lens of equity to understand how they shape disaster risk.
Findings
Despite a growing commitment to equity within FEMA, procedural, distributive, and contextual inequities result in interventions that perpetuate and amplify disaster risk for vulnerable and marginalized populations. Some of these inequities could be remediated by shifting toward a more bottom-up approach to disaster management, such as community-based disaster risk reduction approaches.
Practical implications
Disaster management agencies and other organizations can use the results of this study to better understand how to devise interventions in ways that limit risk creation for vulnerable populations, including through community-based approaches.
Originality/value
This study is the first to examine disaster risk creation from an organizational perspective, and the first to focus explicitly on how disaster management agencies can shape risk creation. This helps understand the linkages between disaster risk creation, equity and organizations.
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Man Mohan Siddh, Gunjan Soni, Rakesh Jain and Milind Kumar Sharma
The purpose of this paper is to examine the concept of perishable food supply chain quality (PFSCQ) and to suggest a structural model that counts the influence of PFSCQ practices…
Abstract
Purpose
The purpose of this paper is to examine the concept of perishable food supply chain quality (PFSCQ) and to suggest a structural model that counts the influence of PFSCQ practices on organizational sustainable performance.
Design/methodology/approach
On the basis of comprehensive literature review, PFSCQ highly significant practices were examined and designated. These practices were classified into four dimensions: upstream quality (supplier quality), downstream quality (customer focus), internal quality (process and logistics quality) and support practices (top management leadership and commitment to quality, quality of human resource, quality of information and supply chain integration). The measurement instrument of organizational sustainable performance was also build on, containing three aspects: economic, environmental and social performance.
Findings
An inventive conceptual model that specifies a comprehensive image cover up core dimensions of PFSCQ and various aspects of organizational sustainable performance was suggested. This conceptual model can be used as “a directive” for theory developing and measurement instrument development of PFSCQ practices and organizational sustainable performance. More prominently, on the road to achieving additional insight, an extensive structural model that makes out direct and indirect relationships between PFSCQ practices and organizational sustainable performance was also developed. Practitioners can apply this model as “a path plan” for implementing PFSCQ practices to improve organizational sustainable performance.
Originality/value
The integration of quality and supply chain even now remains inadequate in the literature. Consequently, it is required to have a more focused approach in assessing quality issues inside the upstream, internal and downstream of the supply chain. This study concentrates on the practices which make better quality aspects of the supply chain, known as PFSCQ practices. Suggested research models in this paper contribute to conceptual frameworks for theory building in PFSCQ and sustainable organizational performance. It is also expected that this research can suggest a useful direction for determining and implementing PFSCQ practices as well as make possible further studies in this arena.
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G.C. Holt, M. Henchion, C. Reynolds, B. Baviera, J. Calabrese, L. Contini, C. Cowan, T. Dowgielwicz, C. Luscher, A. Maraglino, R. Prugger and R. Tononi
This paper sets out to provide a consensus position on the potential for the inclusion of small businesses in electronic platforms in the food industry.
Abstract
Purpose
This paper sets out to provide a consensus position on the potential for the inclusion of small businesses in electronic platforms in the food industry.
Design/methodology/approach
The consensus was derived through a Delphi‐type series of questions in an open forum of academics and industrialists across Europe.
Findings
The consensus reached was of the proven benefits of electronic platforms for small businesses and the need for further research to assess how small businesses can incorporate electronic traceability and supply chain management systems into their existing operations.
Practical implications
Electronic platforms are spreading rapidly in the food industry. However, there is some concern that small businesses are not aware of the potential for electronic supply chains such as the potential that electronic traceability offers smaller networks to supply highly demanded food quality attributes such as organic production and regional foods.
Originality/value
The paper addresses the highly topical issue of food origin with a new approach to the supply technologies behind the product.
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Man Mohan Siddh, Gunjan Soni, Rakesh Jain, Milind Kumar Sharma and Vinod Yadav
The purpose of this paper is to deliver a structured literature review of existing literature on agri-fresh food supply chain quality (AFSCQ) over a period of 23 years (1994 to…
Abstract
Purpose
The purpose of this paper is to deliver a structured literature review of existing literature on agri-fresh food supply chain quality (AFSCQ) over a period of 23 years (1994 to mid-2016) and provide a platform for practitioners and researchers trying to identify the existing state of work, gaps in current research, and future directions in the field of AFSCQ.
Design/methodology/approach
The existing literature is classified on the basis of several classes like number of publications per year, journal-wise publications, studies across various countries, growth of empirical research, data analysis methods or tool used, issues related to supply chain quality as well as performance measurement (with respect to entity of analysis, level of analysis and element of exchange).
Findings
Most of the research publications discuss issues in developed countries, while relatively lesser publications are available on issues in developing countries. Hence, larger opportunities in the field of AFSCQ are available in developing countries. Empirical research is also growing in the field of AFSCQ. Largely research publications make use of “case study” research approach and “statistical analysis” as a quantitative tool of research. The literature is also categorized under the various issues of supply chain quality such as sustainability management, information management, logistic management, collaboration and coordination management, strategic management, demand management, inventory management, food safety, performance management, supply chain integration, supplier management, quality management, etc. It was found that in the majority of articles, information management, sustainability management, and logistics management are very critical issues as far as AFSCQ is concerned. Performance measurement of agri-fresh food supply chain is also on a growing stage. It is also an integral part of AFSCQ.
Originality/value
Most of the prior reviews are concentrated on a particular issue as production and distribution planning for agri-foods, temperature monitoring, corporate and consumer social responsibility, traceability system and ignore the wider perception. There exists a necessity of having a detailed review to cover up all the issues in AFSCQ. This review fills this gap in the extant AFSCQ literature.
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Haining Yin, Hui Zhang and Zhumei Xi
Phenolic compounds play a critical role in grape quality, and their content is strongly influenced by bunch zone temperature during the ripening period. The mechanism of…
Abstract
Purpose
Phenolic compounds play a critical role in grape quality, and their content is strongly influenced by bunch zone temperature during the ripening period. The mechanism of responding to temperature was found to highly depend on cultivars. The present study aimed to evaluate the effects of row orientation and canopy side on phenolic content in grape berries.
Design/methodology/approach
The authors analyzed the accumulation of phenolic compounds in mature berries of Cabernet Sauvignon and Cabernet Gernischt. They were harvested from various canopy sides of north-south and east-west row orientations, which were NS–E and NS–W, EW–S and EW–N.
Findings
During the ripening period, mean temperatures of the bunch zones, NS–W and EW–N were respectively higher than NS–E and EW–S. At harvest, the total phenolic, total anthocyanin, tannin and reducing sugar contents were higher in NS–E and EW–S, than in NS–W and EW–N, respectively, indicating a negative relationship with temperature. For both varieties, EW–S had the highest proportion of malvidins anthocyanins. Peonidins, delphinidins, and cyanidins anthocyanins of EW–N showed a higher ratio in Cabernet Sauvignon, while NS–E showed a higher ratio in Cabernet Gernischt.
Originality/value
To improve grape monomeric anthocyanin content, the results indicate that Cabernet Sauvignon of NS–W and Cabernet Gernischt of NS–E can be utilized for an effective strategy. Moreover, the optimal combination planting choices with cultivars would improve wine quality by increasing pigment concentrations linked to the color and antioxidant potential.
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Understood as the simultaneous experience of necessarily conflicting attitudes, wishes, feelings, or intentions, the concept of ambivalence has a complex history in psychological…
Abstract
Understood as the simultaneous experience of necessarily conflicting attitudes, wishes, feelings, or intentions, the concept of ambivalence has a complex history in psychological and social analysis. Lüscher (2000) reviewed the history of this concept, initially used in the study of abnormal states, and then generalized to the realm of the usual and expectable in social life. It should be noted at the outset that the term “ambivalence” presents two problems for social analysis: adoption of a term initially intended to portray abnormal states for the expectable course of adult life, and the extension of a concept founded on the study of personal states to social analysis. Consistent with Bleuler’s (Riklin, 1910/1911) initial discussion of the term ambivalence,1 Freud (1909, 1912, 1912–1913, 1914) attempted to resolve the first problem by showing that ambivalence – as the experience of mixed and conflicting sentiments regarding those who are particularly important in one’s own life – inevitably emerges out of the child’s effort to resolve the tension between social reality and his or her own desire focused on the parents of early childhood. At the same time, Freud compounded the second problem by regarding the realm of the social as the personal writ large.
Sarah R. Taylor and Barbara Demmig‐Adams
The purpose of this review is to provide a comprehensive summary of current research on the health risks and benefits associated with coffee drinking.
Abstract
Purpose
The purpose of this review is to provide a comprehensive summary of current research on the health risks and benefits associated with coffee drinking.
Design/methodology/approach
This review includes up‐to‐date information from the original literature on coffee drinking and health and presents findings in a manner accessible to both experts and non‐experts.
Findings
Coffee contains caffeine, antioxidants, and other phytochemicals, all of which affect disease risks. There is evidence that coffee drinking may not be suitable for certain individuals. Overall, however, coffee drinking seems to be a non‐harmful habit for those who drink it regularly and in moderation, and recent studies indeed suggest that it may even be beneficial for most people. The most currently available evidence suggests that coffee drinking can help reduce the risk of several diseases, most notably type 2 diabetes, Alzheimer's disease, and Parkinson's disease, although the underlying mechanisms for this effect are still being investigated.
Practical implications
Current studies suggest that coffee drinkers can help protect themselves from neurodegenerative and other diseases by drinking an average of two cups of regular, filtered coffee per day.
Originality/value
This article provides accessible and comprehensive information to researchers, nutritionists, and consumers who are interested in the potential health risks and benefits of regular and moderate coffee drinking.
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Karl Pillemer and Kurt Lüscher
Every book has its unique history. Our own interest in intergenerational ambivalence developed in discussions during Karl Pillemer’s sabbatical in 1996 at the University of…
Abstract
Every book has its unique history. Our own interest in intergenerational ambivalence developed in discussions during Karl Pillemer’s sabbatical in 1996 at the University of Konstanz Research Center on Society and the Family. Despite using different methods, samples, and research frameworks, both of us had come up with findings about intergenerational relations that could not be interpreted easily within existing theoretical frameworks. Kurt Lüscher’s study of family reorganization after older parents’ divorce pointed toward complex tensions between interpersonal closeness and distance, and between a desire to preserve traditional family forms and to strike out in new directions (Lüscher & Pajung-Bilger, 1998). Similarly, Lüscher’s work on family rhetoric (Lüscher, 2000) and on contemporary families (Lüscher, 1998) suggested the limitations of existing frameworks in these areas. Karl Pillemer’s research on elder mistreatment had revealed the paradoxical circumstance that extreme conflict and a high degree of solidarity coexist in abusive families (Pillemer & Suitor, 1992; Pillemer & Wolf, 1998; Wolf & Pillemer, 1997) and his studies of parent-child relationships had pointed to the prevalence of interpersonal conflict and unmet expectations (Pillemer & Suitor, 1998; Suitor & Pillemer, 1988, 1996) as well as their negative impact on parental well-being (Pillemer & Suitor, 1991).