BACKGROUND Tuberculosis, being an infectious disease, carries a risk of infection to contacts attending tuberculous patients. This study was conducted to evaluate the risk for household contacts of tuberculous patients as compared to non-contacts. The study was conducted at PGMI, Gulab Devi Hospital and Defence Housing Authority Lahore. The study included 120 household contacts and 80 non-conta...

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In this text we discuss problems arising from a naive implementation of the so called Cundall-Strack tangential spring as a scheme for static friction in simulations of granular materials. We show how to use it safely and present extensions in the form of a static coeecient of friction and a damping of the spring. An important property of granular materials is the frictional coupling between it...

The study assessed farmers’ perception of effectiveness of agricultural extension agents in Anambra State, Nigeria. The population of the study comprised all contact farmers and extension agents in Anambra State. Multi-stage, purposive and simple random sampling techniques were used to select 200 respondents comprising 160 farmers and 40 extension agents. Data for the study were collected throu...

Compartmentalised extension prohibits the uptake of new technology thereby inhibiting agricultural growth. Extension services aimed at increased agricultural growth should have a market-led and evidence-based pluralistic advisory system that is coordinated by the government’s Agricultural and Technical Services division in response to the needs of farmers. This study sought to assess extension ...

Cortical areas participating in the preparation of voluntary movements have been studied extensively. There is emerging evidence that subcortical structures, particularly the basal ganglia, also contribute to movement preparation. The thalamus is connected to both the basal ganglia and the cerebellar pathways, but its role in movement preparation has not been studied extensively in humans. We s...

An endeavour was made to examine the female contacts of all new male N.G.U. patients attending three special treatment centres. 63-6 per cent. of the women were referred by their husbands and the remainder by other sex contacts (Table I). The 250 cases dealt with in this series were unselected except that the contacts of men who developed N.G.U. while under surveillance for gonorrhoea were excl...