Introduction. Nurses have a frontier caring role that brings them in close contact with patients' blood and body fluids. An understanding of their professional behavior is essential to assess and minimize the occupational exposure to HIV among them. Objectives. (1) To appraise the knowledge, attitudes, and preventive practices of nursing students pertaining to occupational exposure to HIV. (2) ...

In this paper we show that the probability that a program p of n bits halts at discrete time t (with t > 2n+1 − 2; we define the discrete time t as the integer number of steps done by an Universal Turing Machine during the execution of p, until the halt) tends to zero as the inverse law ∝ 1/t. This means that the greater is the time an n-bit program is running on an Universal Turing Machine (pr...

High throughput genomic technologies have revolutionized biomedical sciences, and progress in this area continues at an accelerated pace in response to the increasingly varied needs of biomedical research. Among emerging technologies, one of the most promising is the use of universal tag arrays (UTA) [4]. A universal tag array consists of a set of DNA strings called tags, designed such that eac...

In this article we address issues concerning construction of lexicon in the context of sentential knowledge representation in Universal Networking Language (UNL), an interlingua proposed in 1996 for machine translation. Lexical knowledge in UNL is in the form of Universal Words (UWs) which are concepts expressed by mostly English words disambiguated and stored in the universal words repository....

Universal Akers Arrays (UAA) allow to realize arbitrary Boolean function directly in cellular layout but are very area-ine cient. This paper presents an extension of UAAs, called \Lattice Diagrams" in which Shannon, Positive and Negative Davio expansions are used in nodes. An e cient method of mappig arbitrary multi-output incompletely speci ed functions to them is presented. We prove that with...

BACKGROUND AND AIM In India, approximately 65% of mothers deliver at home, and a community-based study evaluating the cost of vaccinating newborns with the first dose of hepatitis B vaccine within 48 hours has not been undertaken previously. This policy planning study was done to evaluate the costs of such immunization in India. METHODS All mothers delivering in the study area (population 65,...

OBJECTIVE To determine the pattern of use and re-use of orthodontic molar bands, and examine infection control measures in a sample of UK orthodontists. DESIGN Questionnaire survey. SUBJECTS AND METHODS Questionnaires were sent to 204 individuals selected at random from the UK Specialist Orthodontist list. Follow-up questionnaires were sent to those that had not replied within 8 weeks. An o...

A necdotal evidence suggests that health-care professionals in Nigeria may discriminate against and stigmatise people living with HIV/AIDS(PLWA). In a study in the August issue of PLoS Medicine, Reis and colleagues set out to characterise the nature and extent of discriminatory practices and attitudes in the health sector, and indicate possible contributing factors and intervention strategies [...