Abstract：
:The authors describe some experiments carried out to determine the effect of moisture, temperature, and pressure on the suspensibility of DDT water-dispersible powders.It was found that the removal of moisture brought about a slight increase in suspensibility; that heating for one hour at temperatures below 70 degrees C resulted in an increase in suspensibility, due probably to the drying effect of the heat, whereas heating for the same period at temperatures above 70 degrees C resulted in a decrease; that on prolonged heating at 70 degrees C and 75 degrees C the suspensibility decreased sharply in the first four hours but thereafter showed little change up to 20 hours; and, finally, that low pressures-for example, 25 g per cm(2)-had little effect on the suspensibility, but that at pressures of 100 pounds per square inch (7 atm.) and over, it varied in inverse proportion to the logarithm of the pressure.
journal_name
Bull World Health Organjournal_title
Bulletin of the World Health Organizationauthors
MILES JW,GOETTE MB,GRIMM L,PEARCE GWsubject
Has Abstractpub_date
1959-01-01 00:00:00pages
937-45eissn
0042-9686issn
1564-0604journal_volume
20pub_type
杂志文章abstract：:Toxorhynchites brevipalpis, a predator on larvae of Aedes aegypti and other mosquitos, was successfully colonized in the laboratory. At 25 degrees C, embryonic development was completed within 50 hours of oviposition, while larval and pupal development together took a further 27-41 days. The adult mosquitos mated in c...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1973-05-01 00:00:00
abstract：:The source (species of origin), type, and subgroup (where applicable) of the immunoglobulin chain are indicated prior to the numbers of the first and last amino acid residues comprising the synthesized sequence (stated in parentheses), e.g., human gamma 1 (289-298) or rat epsilon (143-147). Square brackets indicate th...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:This paper describes the organization of an epidemiological survey, carried out by the Lipid Centre of the Institute of Experimental Medicine in Leningrad, particularly the ways in which subjects were recruited. The different methods of recruitment resulted in a total population response of 78.14%. A time index is int...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:This Memorandum summarizes current knowledge on the epidemiology of cholera and diarrhoea due to enterotoxigenic Escherichia coli (ETEC) and outlines the results of recent research to develop an effective oral vaccine against cholera. The meeting reviewed current research on the protective antigens of ETEC and made a ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:It remains unclear why there is such marked variation in the severity of the human immunodeficiency virus (HIV) epidemic between African countries. The prevalence of HIV infection has reached high levels in many parts of southern Africa but in most countries of West Africa the levels are much lower. Although there is ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章,评审
doi：
更新日期：2001-01-01 00:00:00
abstract：:Using a sexually transmitted diseases simulation model (STDSIM), we made projections of HIV spread for four profiles of sexual behaviour reflecting patterns encountered across the developing world: 1) much commercial sex, no short relationships; 2) commercial sex, concurrent short relationships; 3) concurrent relation...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:This report presents the results of a six-month survey of the nature and extent of venereal diseases in Turkey which was undertaken by the author, on behalf of WHO, at the request of the Turkish Government. The first part of the report outlines the present venereal-disease-control system and includes descriptions of t...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1954-01-01 00:00:00
abstract：:The frequent experience in the tropics of poor results of BCG vaccination is sometimes explained by a hypothetical interaction with "non-specific" tuberculin sensitivity. However, samples of data from five tropical countries, reported in this paper, demonstrate a slight, positive correlation between the individual tub...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1966-01-01 00:00:00
abstract：:In 39 randomly selected villages and towns in Tumkur District, South India, approximately 2000 persons, tuberculosis cases and matched controls, were interviewed in order to determine how many had symptoms suggestive of tuberculosis. Approximately 70% of the bacteriologically confirmed cases and over half the radiolog...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1963-01-01 00:00:00
abstract：OBJECTIVE:To determine the direct medical costs of type 1 diabetes mellitus (T1DM) to the National Brazilian Health-Care System (NBHCS) and quantify the contribution of each individual component to the total cost. METHODS:A retrospective, cross-sectional, nationwide multicentre study was conducted between 2008 and 201...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章,多中心研究
doi：10.2471/BLT.12.110387
更新日期：2013-06-01 00:00:00
abstract：:The author reviews the agricultural use of night-soil, sewage, and sewage sludge from two points of view: the purely agricultural and the sanitary.Knowledge of the chemistry and bacteriology of human faecal matter is still rather scant, and much further work has to be done to find practical ways of digesting night-soi...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1954-01-01 00:00:00
abstract：:Lymphocytic choriomeningitis (LCM) has been rarely reported in the American literature since 1960. It is interesting that each of the 3 epidemics reported since then has been associated with exposure to hamsters. In 1973, 48 cases of LCM spanning the years 1971-1973 occurred at the University of Rochester Medical Scho...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:Presented is an assessment of the cost-effectiveness of cataract surgery using cost and services data from the Lumbini Zonal Eye Care Programme in Nepal. The analysis suggests that cataract surgery may be even more cost-effective than previously reported. Under a "best estimate" scenario, cataract surgery had a cost o...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Technological advances in big data (large amounts of highly varied data from many different sources that may be processed rapidly), data sciences and artificial intelligence can improve health-system functions and promote personalized care and public good. However, these technologies will not replace the fundamental c...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.19.234732
更新日期：2020-04-01 00:00:00
abstract：:The author sees the task of industrial psychiatry as one of preventing emotional maladjustment and the more serious mental disorders in the industrial population, and of treating early cases of emotional disorders. He classifies the preventive functions as: giving "emotional" first-aid, holding psychiatric consultatio...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1955-01-01 00:00:00
abstract：OBJECTIVE:Delivery by a skilled birth attendant (SBA) serves as an indicator of progress towards reducing maternal mortality worldwide -- the fifth Millennium Development Goal. Though WHO tracks the proportion of women delivered by SBAs, we know little about their competence to manage common life-threatening obstetric ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/blt.06.038455
更新日期：2007-10-01 00:00:00
abstract：:The gene for dieldrin resistance has been artificially male-linked so that females can be selectively killed with dieldrin. By intercrossing different sibling species of the Anopheles gambiae complex, batches consisting of sterile males only can be reared. This seems to have potential for use in genetic control operat...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:The eradication of poliomyelitis in Cuba, for which effective vaccines had to be acquired, is reviewed in this article. The strategy for eradication was based on mass immunization campaigns for the annual delivery of two doses of trivalent Sabin oral poliovirus vaccine (OPV). Except during the first campaign in 1962, ...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Until about 10 years ago heparin was prepared from ox lungs and was regarded as a homogeneous polymer (of a sulfated mucopolysaccharide) with a relatively constant biological activity of about 100 IU/mg. The mucus and mucosa of the intestine of hog, sheep and ox have now become the main industrial source of bulk start...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1970-01-01 00:00:00
abstract：:Catalina Devandas Aguilar talks to Stephanie Cheng about the impact of the 2008 Convention on the Rights of Persons with Disabilities, the importance of listening to people living with disabilities and what United Nations agencies can do to support their further empowerment. ...
journal_title：Bulletin of the World Health Organization
pub_type： 面试,新闻
doi：10.2471/BLT.19.030119
更新日期：2019-01-01 00:00:00
abstract：:A case-control study was conducted in Yaoundé, United Republic of Cameroon, to evaluate the hypothesis that intramuscular inoculations predisposed young children to paralysis if they were later exposed to poliomyelitis virus. Thirty-three cases with lower motor neuron disease and 66 neighbourhood controls were studied...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：:The addition of Tween 80 to tuberculin dilutions as a stabilizer is known to increase the size of moderate and strong reactions but to reduce that of weak reactions. In order to find out whether this effect on reaction size is connected with the stabilizing action, a study was carried out to compare the reactions to t...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1965-01-01 00:00:00
abstract：:As culture filtrates of Mycobacterium tuberculosis have been shown by numerous workers to be antigenically heterogeneous, a series of experiments has been started to identify some of the different antigens likely to be useful in laboratory tests for measuring the antibodies in human blood. The work involves the fracti...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1955-01-01 00:00:00
abstract：:The presence of non-specific inhibitors in immune influenza sera may falsify the antibody pattern as shown by the haemagglutination-inhibition test, and it is consequently often necessary to pre-treat sera in order to inactivate these inhibitors. A number of different methods are in use for this purpose. It was theref...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1960-01-01 00:00:00
abstract：:Several methods have been advanced for refinement of the conventional infant-mortality rate by relating the deaths to the corresponding annual birth cohorts. The author has tested the accuracy of such methods by assuming various "true" infant mortality rates and applying them to quarterly birth statistics as documente...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1957-01-01 00:00:00
abstract：:Each of 87 strains of brucellae examined for its utilization of amino acid and carbohydrate substrates displayed a metabolic pattern that characterized it as to its species identity, irrespective of its serological and biochemical characters. Strains that displayed the metabolic pattern of Br. abortus were lysed by Br...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1962-01-01 00:00:00
abstract：:One of the hazards involved in the use of antibiotics in animal feeds is that it may lead to the development of bacterial drug-resistance. An analysis of the phenomenon shows that this possibility largely depends on the size of the bacterial populations involved and on the possibility of selective multiplication of th...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章,评审
doi：
更新日期：1963-01-01 00:00:00
abstract：:The duration of immunity conferred by yellow fever vaccine is as yet undetermined. In this study the neutralizing and haemagglutination-inhibiting antibodies to yellow fever were investigated in 108 persons living in Pouso Alegre, Brazil, where yellow fever has never been reported. These persons had been vaccinated wi...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1962-01-01 00:00:00
abstract：:An influenzavirus of swine origin (swine/Taiwan/7310/70) antigenically closely related to the human A/Hong Kong/68 virus readily infected human volunteers. Those infected developed antihaemagglutinin and antineuraminidase antibodies to the human A/Hong Kong/68 virus as well as to the swine/Taiwan virus. The clinical r...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：
更新日期：1972-01-01 00:00:00
abstract：OBJECTIVE:To evaluate the implementation of a programme to provide primary care physicians for remote and deprived populations in Brazil. METHODS:The Mais Médicos (More Doctors) programme was launched in July 2013 with public calls to recruit physicians for priority areas. Other strategies were to increase primary car...
journal_title：Bulletin of the World Health Organization
pub_type： 杂志文章
doi：10.2471/BLT.16.178236
更新日期：2017-02-01 00:00:00
