BACKGROUND To stop a possible outbreak of Legionnaires' disease (LD) at an early stage an outbreak detection programme was installed in The Netherlands. METHODS The programme consisted of sampling and controlling of potential sources to which LD patients had been exposed during their incubation period. Potential sources were considered to be true sources of infection if two or more LD patient...

BACKGROUND In order to begin to address the burden of non-communicable diseases (NCDs) in sub-Saharan Africa, high quality community-based epidemiological studies from the region are urgently needed. Cluster-designed sampling methods may be most efficient, but designing such studies requires assumptions about the clustering of the outcomes of interest. Currently, few studies from Sub-Saharan Af...

Travis Hirschi's social bonding theory has mostly been tested in the West. In this study, the theory is tested on juvenile delinquency in a developing country, Turkey. Data were gathered from 1,710 high school students in Ankara by using two-stage stratified cluster sampling. Factor analysis was employed to determine the dimensions of juvenile delinquency (assault, school delinquency, and publi...

currently, the land amalgamation has important role in agricultural and under pressure irrigation development. agricultural land amalgamation programs were introduced to farmers of kabutarahangh county since 1990; however, the adoption process has not been successful. for instance, after a decade, only 30 percent of the irrigated lands has been adopted. accordingly, the aim of the study was to ...

Thc SEC developcd this statcment 1)1' revicwing kCI' educllional and historical documcl1ls of AOTA. A draft of this papel' was distributcd bmadly for review ancl commel1l to kel' constitucl1l groups ancl leadcrs of the Associarion, Two cycles of review were completed before the statement Ivas submitted to the Representarive Assembly in 1993. The intent of the statement is nor to delineate all p...

background: lack of nutritional knowledge is one of the most important reasons of nutritional problems and consequently im­proper practice, which can lead to several complications. this study has been designed in order to compare knowledge, at­ti­tude and practices of the urban and rural households regarding iron deficiency anemia (ida) in boushehr, golestan and sis­tan & balouchestan provinces...

introduction: this investigation is seeking for the impact of family form on psychedelic abusing in youth aged 19-35 in tehran city. method: it has been a cross sectional study and the population has been all of youth aged 19-35 living in tehran. using a cluster sampling, 6281 people were selected. the instrument of investigation has been a demographic questionnaire and beck depression inventor...