ALTHOUGH the University of Southampton has had an independent existence for ten years it has roots going back almost a century in the Hartley Institute. An early pioneer in…
Abstract
ALTHOUGH the University of Southampton has had an independent existence for ten years it has roots going back almost a century in the Hartley Institute. An early pioneer in aeronautics, F. W. Lanchester received his technical training in Southampton and the first of the new engineering buildings at the university has been called after him.
Barbara M. Altman, a Sociologist with a Ph.D. from the University of Maryland, is currently a Special Assistant on Disability Statistics at the National Center for Health…
Abstract
Barbara M. Altman, a Sociologist with a Ph.D. from the University of Maryland, is currently a Special Assistant on Disability Statistics at the National Center for Health Statistics and an Adjunct Associate Professor at the University of Maryland, College Park. Her previous position was Senior Research Fellow with the Agency for Healthcare Research and Quality. She is a past president of the Society for Disability Studies and served on the founding Board of Directors of that organization. Her disability research interests focus in three areas: operationalization of disability definitions/measures in survey data; access to, financing and utilization of health care services by persons with disabilities, particularly working age persons and women with disabilities; and disability among minority groups. She is the author of a number of articles and book chapters on disability topics, and has served as editor of special issues of Disability Studies Quarterly and Journal of Disability Policy Studies. She is co-editor of this series Research in Social Science and Disability.Deborah J. Anderson, Ph.D., has conducted policy research in the area of Aging and Developmental Disabilities at the University of Minnesota since 1985. Her studies have included analyses of the health status, health conditions and health-related limitations and needs of older adults with mental retardation living in a variety of residential settings as well as in their own homes. These studies have included a longitudinal study of a 10% sample of older adults living in residential facilities licensed by developmental disabilities agencies, the National Nursing Home Survey of 1985, the National Medical Expenditure Survey of 1987, and the National Health Interview Disability Supplement (NHIS-D) of 1994–1995. She has also studied careproviders of older adults with mental retardation, innovative programs serving aging adults with developmental disabilities/mental retardation, and state agencies’ preparation for serving adults with mental retardation as they aged. Most of this research has been conducted as part of the NIDRR-funded RRTC on Aging and Developmental Disabilities. Dr. Anderson is also an Associate Professor in the Department of Psychology at St. Olaf College in Northfield, MN.Lynda L. Anderson, M.A., M.P.H., is a Resource Manager at No Place like Home in Robbinsdale, Minnesota. Ms. Anderson earned a Master of Arts degree in Human Service Administration and a Master of Public Health degree in Community Health. Ms. Anderson is a doctoral candidate in Work, Community and Family Education at the University of Minnesota. She has more than eighteen years of experience working with people with disabilities as a Direct Support Professional, Program Director, and Researcher. She has participated in NHIS-D analysis activities for the last five years.Sharon N. Barnartt, Ph.D., is Professor of Sociology at Gallaudet University. She has co-authored two books: Deaf President Now: The 1988 Revolution at Gallaudet University (1995) and Contentious Politics in the Disability and Deaf Communities (2001). She has also presented papers and published widely in the areas of socio-economic status and disability/deafness, legal and disability policy issues, and social movements in the deaf and disability communities. She is a former president of the Society for Disability Studies, co-editor of Research in Social Science and Disability and on the editorial board of Journal of Disability Policy Studies.Phillip W. Beatty, M.A., is a Senior Research Associate at the National Rehabilitation Hospital Center for Health & Disability Research in Washington, DC. His recent research focuses on predictors of access to health services among adults with disabilities. Mr. Beatty is also conducting research to determine the ways in which functional outcomes information is being used by stakeholders in the medical rehabilitation industry.Edward Brann, M.D., M.P.H., is Acting Director of the Division of Human Development and Disability, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention. The division conducts a number of research and program activities for people with disabilities.Hong Chen, M.S., is an Economist in RTI International’s Division of Health Economics Research. His work focuses primarily on the analysis of large claims and survey databases, with an emphasis on diabetes prevention, substance abuse, and competitive bidding for durable medical equipment.Lisa J. Colpe, Ph.D., M.P.H., is a Clinical Epidemiologist Specializing in Survey Design and Research. At the time the work on this chapter was done, she was an Epidemiology Training Program Fellow in the Division of Health Interview Statistics, National Center for Health Statistics.Roger B. Davis, Sc.D., is Associate Professor of Medicine at Harvard Medical School and Associate Professor of Biostatistics at the Harvard School of Public Health. Dr. Davis has overseen the statistical design of numerous clinical trials, especially involving cancer and AIDS therapies. An expert in survival analysis, he also participates in health services research and clinical epidemiology studies with colleagues at Beth Israel Deaconess Medical Center, where he serves as Biostatistician in the Division of General Medicine and Primary Care.John Drabek, is an Economist in Office of Disability, Aging, and Long-Term Care Policy in the U.S. Department of Health and Human Services. He received his B.A. in Economics from Northwestern University, and his Ph.D. in Economics from the University of California, Santa Barbara. Prior to joining the federal government, he performed research at the University of Southern California, and at the University of California, Los Angeles.Laura J. Dunlap, M.A., is a Health Economist in RTI International’s Center for Interdisciplinary Substance Abuse Research. Since joining RTI in 1994, she has worked on studies analyzing the costs and benefits of substance abuse treatment, the effect of treatment services on post-treatment outcomes, and the costs and cost-effectiveness of public health and treatment interventions aimed at special populations such as drug users and low-income women.Holly J. Fedeyko is a former employee of the Disability and Health Branch, CDC in Atlanta, Georgia. While at the CDC she focused her efforts on Research in disability issues as related to questions from the National Health Interview Survey. She received her M.P.H. in Epidemiology and Environmental Health from Emory and her B.S. in Biology from McGill. She is currently employed as an analytical consultant for a private company and now resides in the San Francisco Bay area.Frances K. Goldscheider, University Professor and Professor of Sociology, began her Brown career in 1974. Since obtaining her Ph.D. in Demography from the University of Pennsylvania in 1971, Goldscheider has focused her research on census and survey data to address questions related to family structure and coresidential relationships, examining causes and consequences of change. Goldscheider pioneered research on the single-person household, and on home leaving and return to the nest of young adults, and has examined issues of labor force and family decisions of 20th century American women. She is an expert on family structure and relationships, fertility, parenthood, household economy, and marriage. Her intergenerational focus (on the living arrangements of young adults and the elderly) has expanded to include gender issues, particularly marriage and divorce, with a strong concern with the consequences of family structure for investments in childhood and young adulthood. Recent research interests include men’s roles in parenting and in the family.Scott D. Grosse, Ph.D., is a Health Economist at the National Center for Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention. He conducts applied research on the costs associated with various childhood conditions and economic evaluations of screening programs and interventions intended to improve health and developmental outcomes in children.Gerry E. Hendershot, Ph.D., is a Consultant on Disability and Health Statistics. From 1985 to 2001, he held various positions on the staff of the National Health Interview Survey, including Assistant to the Director for Data Analysis and Dissemination. He had a lead role in promoting, designing, and analyzing the National Health Interview Survey on Disability. He is the author of many published statistical reports on disability and other health-related topics.Dennis P. Hogan, Professor of Sociology, joined the Population Studies and Training Center at Brown University in 1995. He received a Ph.D. in Sociology from the University of Wisconsin-Madison in 1976. He has taught at both the University of Chicago, where he acted as associate director of the Population Research Center, and Pennsylvania State University, where he served as director of the Population Research Institute. In 1997, Hogan was named to an endowed professorship as the Robert E. Turner Distinguished Professor of Population Studies. Some of his research interests include the interrelationships of the family lives of individuals and their social environments, the measurement of disability, family consequences of disability, and the transition to adulthood. Hogan’s current research focuses on child disability. He is the principal investigator on grants supporting this program from the National Institute for Child Health and Human Development, the National Center for Medical Rehabilitation Research, the Assistant Secretary for Planning and Evaluation, the Federal Interagency Forum on Child and Family Statistics Subcommittee on Disability and the Spencer Foundation.Ghada al Homsi, M.S., is an Economist in RTI International’s Center for Interdisciplinary Substance Abuse Research. Her work focuses on the analysis of large surveys and the design and maintenance of databases of program costs.Amanda A. Honeycutt, Ph.D., is an Economist in RTI International’s Division of Health Economics Research. Since joining RTI in 1998, she has led a number of studies on the cost-of-illness, the cost of intervention programs, and the cost-effectiveness of prevention and treatment interventions that focus primarily on diabetes, HIV/AIDS prevention, and children’s health, disability, and development.Peter C. Hunt, M.P.H., was an Association of Schools of Public Health Fellow in the Division of Health Interview Statistics, National Center for Health Statistics, at the time work on this chapter was done. He subsequently served as a Special Assistant to the Director of the National Institute of Disability and Rehabilitation Research. He is currently a Research Associate at the University of Pittsburgh Model Center on Spinal Cord Injury.Lisa I. Iezzoni, M.D., M.Sc., is Professor of Medicine at Harvard Medical School and Co-Director of Research in the Division of General Medicine and Primary Care, Department of Medicine, at Beth Israel Deaconess Medical Center in Boston. Her primary research interest is risk adjustment for assessing health care quality and improving the fairness of payments. A 1996 recipient of The Robert Wood Johnson Foundation Investigator Award in Health Policy Research, she also studies health policy issues relating to mobility impairments. Dr. Iezzoni is a member of the Institute of Medicine.Gwyn C. Jones, Ph.D., M.S.W., M.Ed., is a Senior Research Associate at the National Rehabilitation Hospital Center for Health & Disability Research in Washington, DC. She is a former ATPM/CDC Fellow and current grantee. Her research and publications have focused on health risks, chronic conditions, and use of preventive services among working-age adults with disabilities, prescription drug use among non-elderly adults with disabilities, and rural Medicaid managed care for adults with disabilities.Judith D. Kasper, Ph.D., is a Professor in the Department of Health Policy and Management, and a Senior Research Associate in the Center for Health Services Research, at The Johns Hopkins Bloomberg School of Public Health. Her research interests include health policy in long-term care, aging and disability, access to health care for vulnerable populations, and the development and application of data sources for health policy and health services research. Dr. Kasper holds a Ph.D. in sociology from the University of Chicago.K. Charlie Lakin, Ph.D., is the Director of the Research and Training Center on Community Living at the University of Minnesota. Mr. Lakin has had extensive experience in gathering, analyzing, and using statistics from many primary and secondary data sources with the products of this work included in more than 200 publications in developmental disabilities and related services. Mr. Lakin was a member of the six-person external technical advisory panel on the instrumentation for the Disability Supplement. Mr. Lakin serves as Associate Editor of Mental Retardation, and consulting editor of The Journal of the Association for Persons with Severe Handicaps (JASH), the Journal on Intellectual and Developmental Disability and Social Science and Disability.Sheryl A. Larson, Ph.D., is a Research Associate at the Research and Training Center on Community Living at the University of Minnesota. She earned her Ph.D. in Educational Psychology from the University of Minnesota. She has 20 years of experience in services to persons with DD as a residential counselor, behavior analyst, social worker, and program evaluator and has worked for the RTC for the last 14 years. Ms. Larson was the Co-Principal Investigator for a two-year NIDRR Field Initiated Project which used the National Health Interview Survey Disability Supplement to examine the characteristics and service needs of persons with intellectual or developmental disabilities. She directed a supplement to the Research and Training Center on Community Living’s core grant that funded an international user’s conference in June 2000 for researchers analyzing NHIS-D topics. She has co-authored several papers using NHIS-D data. Dr. Larson has also co-authored several books, book chapters, journal articles and technical reports on workforce development issues, residential services, and community integration for persons with developmental disabilities and is a consulting editor of Mental Retardation.Donald J. Lollar, Ed.D., Senior Research Scientist, Division for Human Development and Disability, National Center on Birth Defects and Developmental Disabilities at the Centers for Disease Control and Prevention in Atlanta. His advanced degrees are from Indiana University, and his most recent writings include co-editing an Archives of Physical Medicine and Rehabilitation supplement on the Science of Disability Outcomes, and articles for the 2003 Annual Review of Public Health and 2002 Public Health Reports outlining public health strategies to improve the health and well-being of people with disabilities. He has spent the past seven years developing public health science and programs to improve the health of people with disabilities, prevent secondary conditions, and increase participation in society. He currently serves as the co-lead of the Healthy People 2010 workgroup on Disability and Secondary Conditions (Chap. 6 of HP 2010). Dr. Lollar began involvement with the WHO classification ICIDH in 1994 while still in private practice, assessing potential utility of ICIDH-2 for clinical records. He is currently a part of the team to adapt the ICF to improve its utility for children and youth.Pamela Loprest is a Labor Economist and Senior Research Associate at the Urban Institute. Her research focuses on low-wage labor markets and how government policies can help to reduce and remove barriers to work among disadvantaged populations. Dr. Loprest has a Ph.D. in Economics from the Massachusetts Institute of Technology and has been at the Urban Institute since 1991.Elaine Maag is a Research Associate in the Urban Institute’s Income and Benefits Policy Center. Her research focuses on policies affecting youth with disabilities and employment opportunities for adults. She also conducts research on how tax policy affects low-income families. Ms. Maag holds an M.S. in Public Policy from the University of Rochester.Jennifer M. Park is a Post-Doctoral Fellow at the Harvard Graduate School of Education. Her current research is funded by a grant she holds from the American Education Research Association to examine cognitive development among first grade youth with and without emotional impairment. Her dissertation explored cognitive growth among kindergarteners with and without perceptual impairment. Dr. Park holds a Ph.D. in Sociology from Brown University, where her research examined the diverse effects of child disability on family outcomes.Elizabeth K. Rasch, M.S., P.T., is an Associate Service Fellow at the National Center for Health Statistics, CDC, working in the area of disability statistics. She is a Ph.D. candidate at the University of Maryland, Department of Physical Therapy and Rehabilitation Science, with a concentration in Epidemiology. Her research interests include the health of persons with disabilities, factors that contribute to disability, as well as the use of and access to healthcare services by persons with disabilities. She has been actively involved in research since 1985 and has published articles and book chapters on topics related to disability and rehabilitation.Anne W. Riley, is an Associate Professor in the Department of Health Policy and Management, in the division of Health Services Research, at the Johns Hopkins Bloomberg School of Public Health. Dr. Riley has expertise in the assessment of mental health and health, especially of children and adolescents, methods development, and evaluation systems for monitoring the outcomes of care for youth.Diana E. Schendel, Ph.D., is a Lead Health Scientist at the National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention. She directs both intramural and extramural epidemiologic studies of reproductive and developmental outcomes, with a primary focus on cerebral palsy, autism, and other neurodevelopmental problems.Hilary Siebens, M.D., is Lecturer in the Department of Physical Medicine and Rehabilitation (PMR) at Harvard Medical School and Associate Director, PMR Service, at the Massachusetts General Hospital. She received clinical training in internal medicine, geriatrics, and PMR. Her publications address exercise among older adults, models of rehabilitation, and quality improvement initiatives.Lois M. Verbrugge, Ph.D., M.P.H., is Distinguished Senior Research Scientist in the Institute of Gerontology at the University of Michigan. She has contributed to disability theory and has conducted analyses of arthritis disability, gender differences in morbidity and mortality, and co-morbidity, using large-scale data sets. Her recent publications have emphasized the relative benefits of equipment and personal assistance for disability, the interleaving of aging and disability, and global indicators of disability. She was awarded the American Psychological Association Distinguished Contribution to Women’s Health Award in 1994.Whitney P. Witt, Ph.D., M.P.H., is an Assistant Professor of Medicine in the Division of General Internal Medicine and Center for Healthcare Studies at the Northwestern University, Feinberg School of Medicine. Dr. Witt’s prior work focuses predominately on people living with HIV/AIDS, including children and their families. Over the last five years, she has applied her experience in advocacy, policy, and research on vulnerable and high-cost, chronically ill populations to the field of maternal and child health services research. Dr. Witt’s research emphasizes the importance of family adaptation in ensuring the mental health of children with disabilities and for helping these children obtain access to mental health services. Most recently, her work has focused on the impact of maternal depression on familial health and mental health, preventive care practices, and use of health and mental healthcare services. She holds a Ph.D. in health services research and a M.P.H. from the Johns Hopkins Bloomberg School of Public Health and a B.A. in women’s studies and law from Hampshire College.Li-shou Yang, Ph.D., is Research Investigator in the Institute for Social Research at the University of Michigan. Trained in social demography, her research focuses on the family, the life course, and social change.
Eiichi Taniguchi, Russell G Thompson, Tadashi Yamada and Ron Van Duin
Ling Wang, Fujun Wang, Bryan William Karney, Ahmad Malekpour and Zhengwei Wang
The velocity head is usually neglected in the energy equation for a pipeline junction when one-dimensional (1D) hydraulic transient flow is solved by method of characteristics…
Abstract
Purpose
The velocity head is usually neglected in the energy equation for a pipeline junction when one-dimensional (1D) hydraulic transient flow is solved by method of characteristics. The purpose of this paper is to investigate the effect of velocity head on filling transients in a branched pipeline by an energy equation considering velocity head.
Design/methodology/approach
An interface tracking method is used to locate the air–water interface during pipeline filling. The pressured pipe flow is solved by a method of characteristics. A discrete gas cavity model is included to permit the occurrence of column separation. A universal energy equation is built by considering the velocity head. The numerical method is provisionally verified in a series pipeline and the numerical results and experimental data accord well with each other.
Findings
The numerical results show that some differences in filling velocity and piezometric head occur in the branched pipeline. These differences arise because the velocity head in the energy equation can become an important contributor to the hydraulic response of the system. It is also confirmed that a local high point in the profile is apt to experience column separation during rapid filling. Significantly, the magnitude of overpressure and cavity volume induced by filling transients at the local high point is predicted to increase with the velocity in the pipes.
Originality/value
The velocity head in the energy equation for a pipeline junction could play an important role in the prediction of filling velocity, piezometric head and column separation phenomenon, which should be given more attention in 1D hydraulic transient analysis.
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John Edmund Mello, Ila Manuj and Daniel John Flint
The purpose of this article is to identify and explain most frequently misunderstood steps in the use of grounded theory (GT) as a methodology and provide guidance on proper…
Abstract
Purpose
The purpose of this article is to identify and explain most frequently misunderstood steps in the use of grounded theory (GT) as a methodology and provide guidance on proper execution of these elements.
Design/methodology/approach
This research provides meaningful guidance to both reviewers and authors interested in applying GT. This research is expected to advance the pursuit of formal theory development.
Findings
There are four most frequently misunderstood steps in the use of GT as a methodology. These are related to the use of literature, theoretical sampling, core category and formal theory development. Proper execution of these elements is important for convincing reviewers and readers that the findings of the research are meaningful and trustworthy.
Originality/value
This paper should be of significant value to researchers who are interested in GT as a methodology. It adds to the few journal articles that address the proper ways to conduct GT.
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D. Di Maio and C.P. Hunt
The purpose of this paper is to investigate the various factors that influence the dissolution of copper in molten solder, paying particular attention to important parameters…
Abstract
Purpose
The purpose of this paper is to investigate the various factors that influence the dissolution of copper in molten solder, paying particular attention to important parameters: temperature, solder composition and flow rate.
Design/methodology/approach
To determine the dissolution rate of copper in lead‐free solders, a simple and automated technique is developed. This methodology provides repeatable measurements that allow the various experimental parameters to be isolated. Factors that greatly affect the dissolution rate of copper, such as soldering temperature, flow rate and solder composition, are taken into account. Particular attention is paid to the flow rate of the molten solder. In fact, different alloys at the same temperature can have considerably different flow rates, owing to their different viscosities at that temperature. The dissolution rates of copper in seven lead‐free alloys and the Sn‐Pb alloy are compared at 255, 275 and 300°C.
Findings
It is observed that generally the samples with a thicker intermetallic layer are those that exhibit a longer dissolution time.
Originality/value
The transition from tin‐lead to lead‐free increases the tendency for copper dissolution in molten solders, clearly representing a serious risk to circuit reliability. This paper presents the many advantages of a method for comparing the dissolution rate of copper with different solder alloys.
Abstract
The efficiency of cleaning of flux residues after various periods of ageing was assessed by measuring the ionic contamination removed in an Ionograph 500 SMD. The flux residues were removed from bare boards, and boards with through hole and surface mount components. The effect of different ageing temperature was also investigated. The work has shown that there is a maximum time interval following assembly during which cleaning should be carried out. The ionic contamination of aged assemblies with through hole and surface mount components were cleaned with varying efficiencies. The surface mount components were more difficult to clean. The use of brushing and scrubbing proved particularly beneficial for the through hole components. A proprietary cleaner proved more effective than the generic alternatives considered.
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Attila Géczy, Bíborka Kvanduk, Balazs Illes and Gábor Harsányi
The paper aims to present a comparative study of various thermocouple (TC) attaching methods for the proper measurement of soldering temperature profiling during vapour phase…
Abstract
Purpose
The paper aims to present a comparative study of various thermocouple (TC) attaching methods for the proper measurement of soldering temperature profiling during vapour phase soldering (VPS). The heat transfer process during VPS is different from common methods, while the required heat for reflow is provided by the condensation. The condensate is a flowing layer on the board, where the dynamic behaviour also affects the local conditions on the surfaces. Temperature measurements based on TCs are also affected this way; it is important to investigate the process for deeper understanding.
Design/methodology/approach
Bare printed circuit boards (PCBs) were prepared for standard K-Type TCs attachment with industry standard materials: kapton polyimide tape, aluminium tape, SMD adhesive and high-temperature solder (HTS). Heating experiments were performed in a batch-type VPS oven with Galden LS240 fluid and fixed oven parameters.
Findings
According to the specific attachment requirements, HTS and Alu-tape are the suggested methods for better profiling reliability and repeatability. Alu-tape is the preferred all-around method, for fast, exchangeable, cheap, reliable and repeatable profiling in a VPS oven. It was presented that the heating factor (Q?) gives more reliable comparison overview; the time period-based comparisons may be affected by the thermal inertia, while heating factor also includes temperature conditions at the given time points.
Originality/value
The paper presents the reliability of the presented methods for VPS and present suggestions for the use of different TC ends and attaching materials during condensation heating of the PCBs. Also a new approach on profiling data evaluation based on the heating factor is presented and suggested for wider use.
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Seyed Hossein Hosseini, Hamed Shakouri G., Aliyeh Kazemi, Rahman Zareayan and Milad Mousavian H.
Project portfolio management (PPM) is a commonly used technique to align projects with strategy and to ensure adequate resourcing for projects. In this paper, to gain a better…
Abstract
Purpose
Project portfolio management (PPM) is a commonly used technique to align projects with strategy and to ensure adequate resourcing for projects. In this paper, to gain a better understanding of PPM dynamics, a system dynamics (SD) model was developed. To do so, an Iranian independent power producer was used as a case study in the energy sector; moreover, policy options were derived and generalized for such a developer company.
Design/methodology/approach
To cope with the complexity of business processes in a power producer company and to formulate an optimum policy, causal relations and loops were derived first and then state-flow diagrams were designed to simulate the problem in the system, as it is usual in the SD methodology.
Findings
The proposed model was applied to a real-world case study to rectify managers’ viewpoint about their business dynamics and to formulate new project portfolio strategies to improve the viability of the company. The model proved how a static portfolio analysis can misguide managers in planning their project portfolio strategies, and how effective feedback can improve PPM in developing companies in the energy sector.
Originality/value
Systems approach, especially SD methodology, has been rarely used to analyze PPM problems in the energy sector. This study highlights the implications of feedback and dynamics in PPM and tries to derive optimal value of portfolios.