This review paper contains a brief discussion of the composition, preparation and use of the various types of insecticide formulations and is presented as an aid to persons presently engaged in mosquito control. A glossary of common formulation has also been added for the benefit of those persons not familiar ...

Osaka, a modern urban metropolis in Japan, experienced a tragic gas explosion in 1970 when the dispatch room of the City Fire Department was in the process of being moved to a new building. Many unforseen problems arose during this disaster: eg, there was an overall lack of leadership, confusion ...

This paper deals with the problem of the controlled closure of excess space in either one or both arches after labial segment alignment or overjet reduction has been achieved. The situations that give rise to the problem are listed. The importance of the need for controlled tooth movement, in order ...

Deposit control in the pulp and paper industry has traditionally been accomplished by the use of toxic biocides. A method has been found whereby biological deposits can be controlled by the use of an enzyme-based product. Numerous field studies have been conducted successfully and photographs prepared illustrating the process. The ...

A simple, inexpensive device which controls the insertion, positioning and withdrawal of cortical undercutting microkinives is described. The device aids the "rolling" insertion of an L-shaped microknife which produces a minimum amount of overlying tissue damage while it holds the knife steady during undercutting and allows the blade to be ...

Since the World Food Conference (1974) recommended a long term program of tsetse control, increasing attention of governments and international agencies has focused on the problem. This paper briefly outlines the strategies potentially available for tsetse control operations before assessing the likely consequences of any large scale tsetse control endeavor. ...

Emission systems and devices are required on automobile engines to reduce air pollution problems. Catalytic converters have been used on most 1975 and newer automobiles to reduce hydrocarbon and carbon monoxide (CO) emissions to a value that meets the Environmental Protection Agency requirements established for 1975 and 1976. The 1980-1981 ...

Four options for allocating a long-term, severe shortfall of petroleum imports are analyzed: oil price and allocation controls, coupon gasoline rationing, variable gasoline tax and rebate, and no oil price controls with partial rebates. Each of these options is evaluated in terms of four criteria: microeconomic effects, macroeconomic effects, equity, ...

Somatic cell counting combined with bacterial identification was successfully used as a method of reducing dairy-herd mastitis problems in Nata. Application of the recommended control measures resulted in an average increase in daily production of up to 2,8 l of milk per cow per day, improvement in quality and reduction ...

Interviews were conducted with 405 drivers of cars equipped with fingertip reach controls. A high percentage of finding problems was reported when the horn was mounted on a stalk and also when the turn signal was on a right stalk. Drivers of configurations with two left stalks had a large ...

The recognition, evaluation, and control of embryotoxins in the workplace are toxicologically and administratively complex and present challenging circumstances to the occupational health professional and to the workplace manager. Accommodating the expectations of society and complying with existing laws and regulations make this complex problem even more difficult. By carefully ...

In an epidemic of nosocomial infection, Pseudomonas cepacia emerged as a significant pathogen capable of causing severe infection. The epidemic was controlled by tracing and controlling the source of the infection, which proved to be "sterile" water and "in-use" dilution antiseptic. Problems of sterile water were controlled by regular maintenance ...

One hundred patients needing bath aids is leaving Leeds hospitals in 1978 were randomly allocated into control and treated groups. The former 50 patients received aids through the usual channels, the latter obtained bath aids immediately on discharge and were instructed in their use at home by the peripatetic occupational ...

A large variety of cervical orthoses is available, but these may be divided into four basic groups. Although the orthoses in each group provide similar controls, each appliance has certain discrete advantages and limitations. The effectiveness of seven different cervical appliances in restricting motion in flexion-extension, lateral bending and rotation ...

This controller addresses the problem of unwanted curved-path operation in electric wheelchairs. The problem results in the vehicle following a slightly curved path, caused by variations in wheel loading, motor power, or terrain. This simple control system senses the speeds of the wheels and applies corrections to keep them equal. ...

A field survey was undertaken between 1972-76 to reappraise the nature of the blowfly problem in New South Wales. For 2 years, 1972-1974, some 80,000 sheep were kept under observation and 12,481 strikes were reported, most due to Lucilia cuprina. Breech strike was still the basic problem but tail strike ...

Clinical studies that used the internal-external locus of control model developed by Rotter (1967) have shown a marked preference among clinicians for clients with an internal locus of control. In the belief that occupational roles can affect such preferences, this study examined clinicians' (sychiatrists, psychologists, social workers) prognoses for clients ...

Hypovitaminosis A is considered to be the most common cause of blindness in the developing countries but it is not possible to estimate the prevalence of keratomalacia directly attributable to it. Subclinical hypovitaminosis A is not measurable at present in human subjects, but studies in animals indicate that the possibility ...

A method is described of maintaining an apparent S. mansoni prevalence rate of 10% in an area estimated to have a natural rate of below 5% following two chemotherapy campaigns. To sustain interest and therefore accuracy among microscopists engaged on screening, known S. mansoni-positive stools were seeded, without their knowledge, ...

Triamcinolone acetonide was injected into the mucobuccal fold adjacent to the surgical site where a vestibuloplasty with mucosal grafting had been performed. Macroscopically, the mucobuccal folds of the experimental group were both softer than those of the control animals and exhibited less tendency toward regression in the depth of the ...

Growth in traffic through London Airport (Heathrow), shortening of aircraft turn-around times, and other factors were reflected in the Esso Company's refuelling service by additional stress on their controllers and by shift supervisors spending time backing-up the controller instead of on general supervision duties. After an initial review of the ...

The British system for anticoagulant control based on the use of a national reagent with a national system of reporting supported by national quality control using lyophilized plasma preparations appears to offer a model which many countries abroad seem interested in adopting to solve their own national problems. Good progress ...

The possibility of preventing or reducing the prevalence of human congenital malformations is discussed in the light of current knowledge about their aetiology. The original data presented are derived from an epidemiological study of all the infants (92,982) born in the three years 1964-6 to women resident in a defined ...

This is the first of two papers concerned with the application of ergonomics in marine systems. Ergonomics problems in ship control will be discussed in this paper, and a subsequent paper, by D.M. Anderson, will illustrate the contributions of ergonomics to bridge design by means of a case study. Ergonomics ...

These notes from the Department of Primary Industries and Fisheries, Queensland Government, Australia give a brief account of the cane toad, 'Bufo marinus', and link to a fact sheet which describes how in 1935 the toad, a native of Central and South America was introduced into Australia to control sugar ...

The control of C. parvum suspension presents special problems. The intended application of this preparation is in a therapeutic area where clinicians are accustomed to using defined chemical entities the biological activity of which are usually predictable according to weight of active principle administered, the route and number of doses. ...

GP fundholding was introduced in 1991 as a part of the NHS reforms of that time. GPs were allowed to control their own budget to see if this act as an incentive for control of a few problem areas, e.g. outpatient referrals and non-emergency treatments. This article considers the effects ...

The preparation of dielectric multilayer coatings of nonequal thicknesses poses a problem of close control. The procedures of optical control of the coating itself (measurement of R or T extremes of R or T zeros of dR/dlambda, usually reserved for lambda/4 stacks) may also be used here; a preliminary study ...

A general account is given of insecticidal control of black-flies in North and Central America, and the problems are contrasted with those arising in the control of Simulium damnosum Theo. in Nigeria. Some recent biological observations on Canadian black-flies are described, and it is emphasized that these have materially contributed ...

The information available about salmonellosis, a controllable disease with a wide distribution, is unsatisfactory for many reasons. Both because of the wide variations in the clinical picture of what is bacteriologically a homogeneous group, and because the methods of control vary considerably with the biochemical and serological type of organism, ...

Psychotherapy is a word to describe an age-old process. It would be better not to speak of psychotherapy, but of psychotherapies. Specialists are not the only ones who act as psychotherapists, since every human being fills this role at one time or another. Besides this, no two persons follow an ...