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Biomedical subjects

R Stock

Publications and source records attributed to R Stock.

At least 37 records · Page 2Linked to original sources
PubMed1990

Patterns of change in the intermetropolitan location of population, jobs, and housing: 1950 to 1980.

"This paper presents a discussion and estimates of a simultaneous-equations model of intrametropolitan location of population, employment, and housing. What distinguishes this work from prior research on suburbanization is that population is distinguished by income class, employment is distinguished by type, and housing is distinguished by mode (i.e., owner versus rental). The model is estimated for three distinct decades, namely, the 1950s, 1960s, and 1970s. Moreover, rather than inferring the causal linkages between population, employment, and housing from estimates of urban density functions or from relative changes in central city and suburban population, this paper utilizes [U.S.] data on actual movers between central cities (suburbs) and suburbs (central cities), as well as on the location of metropolitan in-migrants in the central city versus the suburban ring."

Americas↗
PubMed1985

Health care for some: a Nigerian study of who gets what, where and why?

The persistent underdevelopment of health in the Third World belies the optimism of the "Health care for all by the year 2000" campaign. In order to understand the underdevelopment of health, it is essential to examine the historical evolution of specific health systems. These ideas are developed in a case study of health care in Kano State, Nigeria. The nature and contemporary development of the health care system, which includes state voluntary agency and private sector outlets for Western scientific medicine and a large and varied traditional medicine sector, are examined. Although the deepening health care crisis may potentially spur a reconsideration of priorities and strategies, past experience suggests that a stubborn retention of a pared-down and increasingly unjust version of the present system is more likely.

Health Resources↗
PubMed1983

Distance and the utilization of health facilities in rural Nigeria.

The distance patients must travel in order to obtain treatment has long been recognized as a primary determinant of the utilization of health care facilities. The distance factor is especially significant in rural Third World settings where the density of Western-type health facilities is often low, where the majority of patients are likely to make the journey for treatment as pedestrians and where there are viable and usually more accessible alternate sources of medicine. This study examines the impact of distance on the utilization of health care facilities in the Hadejia area of Kano State, Nigeria. Per capita utilization was found to decline exponentially with distance. The rate of distance decay in utilization levels varies according to the type of facility, socio-demographic variables and illness. Hausa perceptions about sickness and about specific illnesses are reflected in the varying incidence of health facility utilization in the treatment of particular illnesses and distance decay gradients of varying steepness. Although the per capita consumption of health care decreases exponentially for concentric distance bands, individual villages show great disparities in utilization rates which are only partly attributable to distance.

Adult↗
PubMed1983

Impact of weighing procedures and variation in protein degradation rate on measured performance of growing lambs and cattle.

A lamb growth trial was conducted to evaluate soybean meal and blood meal and to compare two experimental designs (a completely randomized design and a switchback design). A larger amount of variation was observed with the switchback than with the randomized design. A larger number of animals, longer treatment period or increased number of weighings may be needed to overcome end point weighing errors and decrease the variation in the switchback design. In both designs, there was a significantly greater conversion of protein to gain for blood meal (BM)-supplemented lambs than for soybean meal (SBM)-supplemented lambs. The relative value of BM compared with SBM was 251% (completely randomized design) or 296% (switchback design). Weighing steers 2 or 3 d at the beginning and end of the trial reduced variation and increased the probability of detecting differences in daily gain, gain/feed and protein efficiency when compared with a standard weighing method (once at the beginning and once at the end of the trial). Regressing 11 weekly weights on an average of one, two or three initial and final weights also reduced variation and increased the probability of detecting treatment differences. Regressions of weekly weights were more useful as the number of initial and final weights was decreased. Daily gain and gain/feed increased linearly (P less than .05) with protein level when BM or SBM was fed. A nonlinear model was used to predict protein requirement, maximum gain and relative protein values. There was a range in relative values for BM of 255 to 348% depending on the method of analysis used.

Analysis of Variance↗