The elderly's access to health care services: The crude and subtle impacts of Medicare changes

Medicare, the federal government's health insurance program for the aged and disabled, has been subjected to a number of legislative and regulatory changes since 1981 aimed at reducing the costs of the program. About a third of the cutbacks have been in activities that directly increase patient cost sharing. Other changes, while aimed at improving efficiency, may also shift costs onto program beneficiaries. This paper estimates the differential impacts of such program changes by age and income of elderly Medicare enrollees and discusses the likely resulting impact on their access to care. Surprisingly, such equity concerns have been largely overlooked in the policy debate concerning cost containment under Medicare.     

Education and identity: Thoughts on the social origins of anorexia

Anorexia nervosa is often said to be a condition which afflicts mainly middle-class girls. This paper suggests that it is not social class but a high level of educational attainment which is associated with the onset of anorexia.The effect of education is analysed in terms of it's influence on the identity -formation of the young woman. Anorexia can be seen as an attempt to rescue a spoilt identity.     

Cannabinoid concentrations in hair from documented cannabis users

Fifty-three head hair specimens were collected from 38 males with a history of cannabis use documented by questionnaire, urinalysis and controlled, double blind administration of delta9-tetrahydrocannabinol (THC) in an institutional review board approved protocol. The subjects completed a questionnaire indicating daily cannabis use (N=18) or non-daily use, i.e. one to five cannabis cigarettes per week (N=20). Drug use was also documented by a positive cannabinoid urinalysis, a hair specimen was collected from each subject and they were admitted to a closed research unit. Additional hair specimens were collected following smoking of two 2.7% THC cigarettes (N=13) or multiple oral doses totaling 116 mg THC (N=2). Cannabinoid concentrations in all hair specimens were determined by ELISA and GCMSMS. Pre- and post-dose detection rates did not differ statistically, therefore, all 53 specimens were considered as one group for further comparisons. Nineteen specimens (36%) had no detectable THC or 11-nor-9-carboxy-THC (THCCOOH) at the GCMSMS limits of quantification (LOQ) of 1.0 and 0.1 pg/mg hair, respectively. Two specimens (3.8%) had measurable THC only, 14 (26%) THCCOOH only, and 18 (34%) both cannabinoids. Detection rates were significantly different (p<0.05, Fishers' exact test) between daily cannabis users (85%) and non-daily users (52%). There was no difference in detection rates between African-American and Caucasian subjects (p>0.3, Fisher's exact test). For specimens with detectable cannabinoids, concentrations ranged from 3.4 to >100 pg THC/mg and 0.10 to 7.3 pg THCCOOH/mg hair. THC and THCCOOH concentrations were positively correlated (r=0.38, p<0.01, Pearson's product moment correlation). Using an immunoassay cutoff concentration of 5 pg THC equiv./mg hair, 83% of specimens that screened positive were confirmed by GCMSMS at a cutoff concentration of 0.1 pg THCCOOH/mg hair.     

Arrested development? Sub-Saharan Africa in the stratified world economy 1965–2015

ABSTRACT

The central concern of this paper is with Sub-Saharan Africa's (SSA) standing in the stratified world economy. Country standings are determined for the period 1965 through 2015, based on the Arrighi and Drangel method of calculating world-system position. We find that the region as a whole remained in the bottom of the global economic hierarchy and was particularly sensitive to macroeconomic-historical changes and pressures. Of note too is the clear link between the SSA countries that are performing well in the semiperiphery of the global economic hierarchy and those with a concentration of natural resources.