Sign language usage of deaf or hard of hearing Sri Lankans.

In Sri Lanka, about 300,000 Sinhala speaking people are either deaf or hard of hearing (DHH) and would benefit from a common Sinhala sign language, technological resources such as captioning, and educational and social support. There is no fully developed common sign language for members of the Sinhalese community, a severe shortage of sign language interpreters, and few resources for teachers. This exploratory study was undertaken in all nine provinces of Sri Lanka into the use of sign language, access to education for people with disabilities, and the availability of trained or qualified educators to work with the DHH people.

Primary school teachers' readiness in identifying children with dyslexia: A national survey in Sri Lanka.

Primary school teachers should be able to identify struggling learners who may have dyslexia type learning difficulties, in order to facilitate early intervention. Considering this importance, a nationwide survey was conducted in Sri Lanka with 705 primary school teachers among randomly selected schools in order to investigate teacher readiness to identify learners with dyslexia. Teacher readiness was measured based on three variables (a) teachers' self-reported basic knowledge of dyslexia, (b) their self-reported awareness of local tools and processes used to identify dyslexia and (c) their self-reported attitudes towards engaging in identifying dyslexia.

Nicotine, Carcinogen, and Toxin Exposure in Long-Term E-Cigarette and Nicotine Replacement Therapy Users: A Cross-sectional Study.

Background: Given the rapid increase in the popularity of e-cigarettes and the paucity of associated longitudinal health-related data, the need to assess the potential risks of long-term use is essential.

Objective: To compare exposure to nicotine, tobacco-related carcinogens, and toxins among smokers of combustible cigarettes only, former smokers with long-term e-cigarette use only, former smokers with long-term nicotine replacement therapy (NRT) use only, long-term dual users of both combustible cigarettes and e-cigarettes, and long-term users of both combustible cigarettes and NRT.

Design: Cross-sectional study.

Measuring urinary N-acetyl-S-(4-hydroxy-2-methyl-2-buten-1-yl)-L-cysteine (IPMA3) as a potential biomarker of isoprene exposure.

Isoprene, the 2-methyl analog of 1,3-butadiene, is identified as a possible human carcinogen by the International Agency for Research on Cancer (IARC). Isoprene is ubiquitous in the environment with numerous natural and anthropogenic sources. Tobacco smoke is the main exogenous source of isoprene exposure in indoor environments.

Assessment of Exposure to VOCs among Pregnant Women in the National Children's Study.

Epidemiologic studies can measure exposure to volatile organic compounds (VOCs) using environmental samples, biomarkers, questionnaires, or observations. These different exposure assessment approaches each have advantages and disadvantages; thus, evaluating relationships is an important consideration. In the National Children's Vanguard Study from 2009 to 2010, participants completed questionnaires and data collectors observed VOC exposure sources and collected urine samples from 488 third trimester pregnant women at in-person study visits.