Covariate Adjusted Correlation Analysis via Varying Coefficient Models

Abstract.  We propose covariate adjusted correlation (Cadcor) analysis to target the correlation between two hidden variables that are observed after being multiplied by an unknown function of a common observable confounding variable. The distorting effects of this confounding may alter the correlation relation between the hidden variables. Covariate adjusted correlation analysis enables consistent estimation of this correlation, by targeting the definition of correlation through the slopes of the regressions of the hidden variables on each other and by establishing a connection to varying-coefficient regression. The asymptotic distribution of the resulting adjusted correlation estimate is established. These distribution results, when combined with proposed consistent estimates of the asymptotic variance, lead to the construction of approximate confidence intervals and inference for adjusted correlations. We illustrate our approach through an application to the Boston house price data. Finite sample properties of the proposed procedures are investigated through a simulation study.     

Reporting quality data on your hospital website: what? why? how?

Explore the challenges in making performance improvement data publicly available on hospital websites, and consider some practical tips and suggestions for aligning organizational goals with community and consumer needs.     

Computer integrated manufacturing applications in an automotive factory

Abstract

System integration is critical to development and implementation of CIM (computer integrated manufacture). This paper outlines the elements of the CIM system implementation strategy and deals with the representation of CIM implementation stages in TO FAS; which is a car manufacturing factory. In TOFA?, a pilot CIM project has been completed with success and other projects are in the development phase.     

Postmodernism: A Dead End in Social Work Epistemology

Postmodernism continues to have a detrimental influence on social work, questioning the Enlightenment, criticizing established research methods, and challenging scientific authority. The promotion of postmodernism by editors of Social Work and the Journal of Social Work Education has elevated postmodernism, placing it on a par with theoretically guided and empirically based research. The inclusion of postmodernism in the 2008 Educational Policy and Accreditation Standards of the Council on Social Work Education and its 2015 sequel further erode the knowledge-building capacity of social work educators. In relation to other disciplines that have exploited empirical methods, social work’s stature will continue to ebb until postmodernism is rejected in favor of scientific methods for generating knowledge.     

Increased wealth and income as correlates of self-assessed retirement

This study examined whether retirement implies complete withdrawal from the labor force and the role that increased wealth and income play in regard to the nature of retirement. Data came from the Health & Retirement Study, Waves 1-5. Findings indicated that most study sample pre-retirees remained in the labor force as they moved into what are considered the normal retirement years. As they moved on average from 50+ years of age to 60+ years of age, increasing percentages of study sample pre-retirees reported themselves as completely retired. Those who viewed themselves as completely retired were far less likely to work than those who did not view themselves as completely retired. Of particular importance was the finding that increased income in 2000 decreased the likelihood of self-reported complete retirement. Equally important was the finding that increased assets had no effect on retirement status with the exception of survey year 1998 when increased assets decreased the likelihood of viewing oneself as completely retired. Findings suggested that pro-work retirement policies aimed at increasing labor force participation among pre-retirees and increasing the normal retirement age can be effective. Five pro-work policies were discussed.     

Case study of grassroots community development: sustainable, flexible and cost-effective responses to local needs

This paper presents the results of a case study of a grassrootscommunity development initiative in St. John, New Brunswick.It was part of a larger study designed to investigate the sustainabilityof community-based crime prevention activities. This case studyhighlights a unique strategy for addressing local communityneeds. The lessons learned in St. John address many of the commonchallenges related to community development such as communitymobilization, capacity building, planning, partnerships andsustainability. Some attention is also directed at the roleof government and non-governmental agencies in community-basedinitiatives since this represents an ongoing concern for thoseinvolved in community development.     

Adult Daughters as Parental Caregivers: Rational Actors Versus Rational Agents

Using logistic regression analyses on a sub-sample (n = 611) of the National Longitudinal Survey, Young Women's Cohort, the study found that inheritance-related factors added no explanatory power to other factors influencing the likelihood of adult daughters providing personal care or doing household chores for their aging parents, suggesting the motivational primacy of adherence to social norms. The study also found that inheritance-related factors increased the likelihood of providing financial assistance beyond that of other factors, suggesting the primacy of self-interest when money transactions are concerned. This is an important study because it offers insights into developing and implementing public and private incentives and policies to ensure an adequate supply of informal caregivers as baby boomers enter their twilight years.     

Oxygen consumption, heart rate, rating of perceived exertion, and systolic blood pressure with water treadmill walking

The purpose of this study was to examine the cardiovascular responses to water treadmill walking at 2.0 mph (3.2 km/hr), 2.5 mph (4.0 km/hr), and 3.0 mph (4.8 km/hr) in older adults. Responses to water treadmill walking in 92 degrees F (33 degrees C) water were compared with responses to land treadmill walking at 70 degrees F (21 degrees C) ambient temperature. After an accommodation period, participants performed 5-min bouts of walking at each speed on 2 occasions. Oxygen consumption (VO2), heart rate (HR), systolic blood pressure (SBP), and rating of perceived exertion (RPE) were significantly higher during therapeutic water treadmill walking than during land treadmill walking. Furthermore, VO2, HR, and RPE measures significantly increased with each speed increase during both land and water treadmill walking. SBP significantly increased with each speed during water treadmill walking but not land treadmill walking. Thus, it is imperative to monitor HR and blood pressure for safety during this mode of activity for older adults.     

A multiple buyer – supplier relationship in the context of SMEs’ digital supply chain management*

Abstract

By underlining the relevance of the use of ICTs, knowledge sharing and electronic markets for SMEs, it emerges the need for stimulating a debate on digitisation process of supply chain management (SCM). Electronic infrastructure in the service sector are reducing each kind of cost and improving multiply buyer–supplier relationships, facilitating negotiations and transactions. However, since the coordination costs are still high, the use of ICTs is limited. This phenomenon thus attracts the interests of scholars and practitioners. Although it still needs to further investigate. Especially, the optimal use of ICTs within SMEs’ SCM have not been studied yet. Therefore, by leveraging on four proxies: ICTs specialised human resources, knowledge sharing activities, buyer–supplier relationships, adoption of electronic markets this optimal was analysed via structural equation modelling based on a sample of 1254 SMEs operating in the service sector in Italy.