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Biomedical subjects

B Gilbert

Publications and source records attributed to B Gilbert.

At least 109 records · Page 6Linked to original sources
PubMed1977

A survey of local public health departments and their directors.

In 1974 a questionnaire was mailed to the nation's local health officers. Responses were received from 1,345, at least 68 per cent of all local health departments. The present paper presents selected summary data from respondents concerning the health departments, their jurisdictions, organization, finance, functions, staffing, and about the training, salaries, and other characteristics of local health officers. Health departments are extensively involved in rendering health services, including direct personal services (25 per cent of all departments). For many services the health department is the sole provider of essential services in the area of jurisdiction. These services include ambulatory care (8 per cent), maternal and child health (48.5 per cent), home care (44.8 per cent), and family planning (38 per cent). The major constraints to improvement and expansion of programs are perceived as limited financial support, insufficient staff, and inadequate facilities.

Administrative Personnel↗
PubMed1977

Statutory authorizations for the work of local health departments.

A study of public health statutes of the 50 states identifies 44 specific services or functions that are assigned to local health departments by all or some of the states. Authorizations are most commonly assigned conjointly both to local and state health departments; exceptions are identified. Data suggest striking inconsistencies between what local health departments are authorized to perform and the services they actually render with regard to a selected group of programs that involve personal health services. The full scope of authorizations for local health departments is not revealed by examination of public health statutes. For this reason, among others, development of up-to-date health codes for all states would be beneficial.

Humans↗
PubMed1976

Snail control in urban sites in Brazil with slow-release hexabutyldistannoxane and pentachlorophenol.

Slow release formulations of hexabutyldistannoxane (TBTO) and pentachlorophenol (PCP) were tested for the control of Biomphalaria tenagophila in 52 urban sites in Rio de Janeiro. TBTO acted faster and lasted longer than PCP and at 15 g/m(2) it eliminated snails from 76% of the treated sites for 1 year. Water pollution and rate of flow had no significant influence on the molluscicidal properties of either compound, but alkalinity lowered the activity of TBTO. Failure to control snail populations was due mainly to human interference and to the non-treatment of adjacent breeding sites that were temporarily dry and therefore overlooked.

Animals↗
PubMed1973

Molluscicidal activity of trifenmorph in field trials.

Trifenmorph granules provided 100% control of Biomphalaria glabrata and B. tenagophila when applied at 2 kg of active ingredient per hectare, except at one site with a pH of 5.6 where the snail population was reduced by only 50%. Granulation was found to facilitate application by either hand or mistblower, and reduces the risk of infection to the spray team. Applied to canal margins the granules had a residual toxic effect.

Animals↗
PubMed1973

Field tests of hexabutyldistannoxane (TBTO) in slow-release formulations against Biomphalaria spp.

Hexabutyldistannoxane (TBTO) in an asphalt base was found to retain molluscicidal activity for more than a year in the field. It was not deactivated by immersion in mud or by drying and exposure to the sun. Complete elimination of planorbid snails was achieved and maintained when repopulation pressure was sporadic, but control of a continuously entering population was not practicable. Fixing the product at the site is important, and a formulation in fragments of rubber that floated failed after 1-2 months. TBTO apparently acts cumulatively in snails, but is only initially toxic to aquatic insects and fish, which return to repopulate treated areas that remain snail-free.

Asbestos↗