Amid growing academic and policy interest in the influence of think tanks in public policy processes, this article demonstrates the extent of tobacco industry partnerships with think tanks in the USA, and analyzes how collaborating with a network of think tanks facilitated tobacco industry influence in public health policy. Through analysis of documents from tobacco companies and think tanks, w...

We characterized the physical/chemical conditions and the algal and bacterial assemblages in ballast water from 62 ballast tanks aboard 28 ships operated by the U.S. Military Sealift Command and the Maritime Administration, sampled at 9 ports on the U.S. West Coast and 4 ports on the U.S. East Coast. The ballast tank waters had been held for 2–176 days, and 90% of the tanks had undergone ballas...

Mosquito breeding occurred in. both types of septic tanks, wz'th Type A septic tanks shounng heatner breeding, Seventy-two (55.4 percent) of the 130 Type A septic tanks inspected had Aedes albopictus breeding. Besides being a nuisance, mosquito breeding is a potential threat to public health, as Ae. albopictus is a vector of dengue fever. Prolific breeding by Ae. albopictus was encountered in. ...

Domestic rainwater tanks have become commonplace in Australia's urban landscape, and have become the physical embodiment of the changing relations between householders, water, and water authorities. The aim of our research was to understand these changing relations by examining how domestic rainwater tanks are inscribed with meanings and assumptions and thus mediate a relationship between house...

Up to now solar heat has been stored mostly in well insulated water tanks. The volume of these tanks is as large as 3 m3 for relatively high solar fractions and up to 70 m3 for full solar coverage for a single-family house. Storage tanks of this size are expensive and space consuming. In new buildings, provisions can be made to accommodate large storage volumes but this type of system is not li...

Evaluation
of
Aedes
aegypti
Presence
and
Abundance
in
Septic
Tanks
and
Their
 Impacts
on
Dengue
Transmission
 
 Ronald L. Burke, Doctor of Public Health, 2009 Thesis directed by: David M. Claborn Assistant Professor Department of Preventive Medicine and Biometrics Background: Aedes aegypti is the mosquito vector for dengue fever and has historically been considered to prefer ‘clean’ water for d...

In order to determine the extent of acaricide resistance in the eastern region of the Eastern Cape Province 1-, 2- and 3-host ticks were collected from cattle at 59 dip-tanks over a period of 2 years. These ticks were tested for resistance against 3 compounds, namely amitraz, cypermethrin and chlorfenvinphos. The Shaw Larval Immersion Test detected emerging resistance to amitraz in Rhipicephalu...

The flow in stormwater tanks has a major impact on their treatment efficiency. A measurement method and an evaluation method was developed to identify unfavourable flow conditions in existing sedimentation tanks. The data base is provided by mobile, event-controlled measurements of tracerbased hydrographs. The analysis is based on transfer functions known in system theory. The model parameters ...

In the course of the investigation into the bacteriology and epidemiology of cholera, which we are at present conducting in the Asansol Mining vSettlement, we found that during the hot dry months of the year (February to June)?which also constitute the epidemic season in that area? vibrios were extremely numerous in the smaller village ground tanks much used by the inhabitants for bathing; the ...