The association between suicide and a single nucleotide polymorphism (rs1386483) was examined in the recently identified tryptophan hydroxylase 2 (TPH2) gene. Blood samples of 143 suicide victims and 162 age- and sex-matched controls were examined. The frequency of the TT genotype in the TPH2 polymorphism was higher in suicide victims than in…

In analytical chemistry classes, the importance of gathering a proper sample for analysis of bulk materials is often addressed only briefly or not at all. Although a number of classroom and laboratory exercises have been developed to illustrate factors that impact error introduced by sampling, they generally do not demonstrate the main goal of…

A grounded theory was utilized to develop a model of stress and coping experienced by recent immigrants to the United States. Maximum variation sampling was used to gather data from 20 leaders within immigrant and refugee communities in a Midwest U.S. city. A theoretical model was developed by identifying causal conditions, contexts, intervening…

In this rejoinder, we criticize Lynn and Meisenberg's (this issue) methods to estimate the average IQ (in terms of British norms after correction of the Flynn Effect) of the Black population of sub-Saharan Africa. We argue that their review of the literature is unsystematic, as it involves the inconsistent use of rules to determine the…

A model-based framework, due originally to R. A. Fisher, and a design-based framework, due originally to J. Neyman, offer alternative mechanisms for inference from samples to populations. We show how these frameworks can utilize different types of samples (nonrandom or random vs. only random) and allow different kinds of inference (descriptive vs.…

Little research in the ESL context has examined the online teaching and learning activities in high schools. One main reason is the lack of appropriate theoretical framework rather than the learners or the environment. Using data from twelve high school students and two teachers from two Malaysian schools, the current study adapted Borup et al.'s…

Current research seeks to understand the relationship between teaching staff' age and their attitude toward ICT. Survey methodology is facilitated through the use of the questionnaires. The survey domain is a random sampling of teaching staff in Egyptian HEI. The population for this study was 500 full-time Faculty staff, and only 412 returned and…

This qualitative case study aimed to solicit Thai EFL university lecturers' opinions concerning postmethod pedagogy. It was motivated by an interest in how local teachers construe pedagogical innovations such as postmethod pedagogy vis-à-vis their own teaching conditions. More often than not, local teachers encounter many challenges in…

Prominence has been given to science and technology (S&T) education of women in recent years. This is because they constitute a critical mass of non-harnessed potentials in the country that if given the opportunity, would contribute to national development. Thus the objective of this work was to study the enrollment, graduation and staffing…

Students often enter biology programs deficient in the math and computational skills that would enhance their attainment of a deeper understanding of the discipline. To address some of these concerns, I developed a series of spreadsheet simulation exercises that focus on some of the mathematical foundations of scientific inquiry and the benefits…

Researchers who involve children in their research are faced with the challenge of choosing between differing theoretical approaches which can prioritise children's autonomy rights or their "vulnerability" and their need to be protected. Somewhat confusingly, ethical guidelines seem to reflect a combination of these approaches. Even when…

We propose "instructional chaining" as an analytic method for capturing and describing key instructional episodes enacted by expert writing teachers to foster the recontextualization over time of the social practices of argumentative writing through process-oriented instructional approaches. The article locates instructional chaining…

Current research seeks to understand the relationship between teaching staff' age and their attitude toward ICT. Survey methodology is facilitated through the use of the questionnaires. The survey domain is a random sampling of teaching staff in Egyptian HEI. The population for this study was 500 full-time Faculty staff, and only 412 returned and…

Purpose: In 2007, Nigeria commenced a nationwide behavioural change communication (BCC) intervention to increase uptake of tuberculosis (TB) care services. The purpose of this paper is to evaluate the effect of TB BCC intervention on knowledge and perception of TB in Enugu state, southeast Nigeria. Design/methodology/approach: This is a…

This article raises questions at the intersection of immigration, citizenship, and formal civics education. Drawing from positioning theory and critical discourse analysis, this article contrasts episodes in two twelfth-grade classrooms taught by the same teacher. In the general education government class, the teacher registered students to vote,…