OBJECTIVES This article reports the prevalence of two types of interpersonal violence (IPV) (sexual and physical) and one type of aggression (psychological) in three low-to-middle-income Caribbean countries. It examines IPV among adolescents and young adults as both victims and perpetrators. METHOD This population-based study compares the experiences of 15-30 year olds in countries at differe...

In this study, the authors examined the scientific quality of health research reported in the three daily newspapers in Trinidad and Tobago. All medical research articles published for the period January 1 to December 31, 2003, were extracted using a standardized data collection form. The scientific quality of the articles was analyzed by taking into consideration various aspects of study desig...

Bacteria make up about half of the living organisms inside of the rumen. However, they do more than half of the work in the rumen. The bacteria work together. Some breakdown certain carbohydrates and proteins which are then used by others. Some require certain growth factors, such as B-vitamins, which are made by others. Some bacteria help to clean up the rumen of others’ end products, such as ...

Bacteria make up about half of the living organisms inside of the rumen. However, they do more than half of the work in the rumen. The bacteria work together. Some breakdown certain carbohydrates and proteins which are then used by others. Some require certain growth factors, such as B-vitamins, which are made by others. Some bacteria help to clean up the rumen of others’ end products, such as ...

1 Departamento de Biologia Celular, Universidade de Brası́lia (UnB), Brası́lia, Brazil, 2 Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Brazil, 3 Centro de Microbiologı́a y Biologı́a Celular, Instituto Venezolano de Investigaciones Cientı́ficas (IVIC), Caracas, Venezuela, 4 Departamento de Microbiologia e Imunologia, Universidade Estadual Pau...

IMPORTANT POINTS The following key points are discussed: • Quality control microbiology tests require controlled levels of inocula and require fresh preparations of cells for those inocula • The concentration of cells in a suspension can be estimated by optical density, but this must be confirmed by plate count • The optical density readings against cell mass are specific to the microorganism s...

There are significant challenges associated with qualitative and quantitative nucleic acid tests performed in diagnostic laboratories. The development of internationally available certified reference materials which can be traced to reference measurements will contribute to a better understanding of the performance characteristics of nucleic acid tests and enhance reliability and comparability ...