Avoidance to wipe alcohol before venipuncture is not a source of spurious hemolysis

Background

It is still uncertain whether or not avoidance to let disinfectant alcohol dry at the site of venipuncture is a source of spurious hemolysis when drawing venous blood.

Methods:

In a consecutive series of 52 outpatients referred for routine laboratory testing, venous blood was drawn by direct venipuncture with (odd group) or without (pair group) wiping 70% isopropyl alcohol at the site of venipuncture. A 3.5 mL evacuated tube with clot activator and gel separator was drawn from a vein of the upper limb, serum was immediately separated with standard centrifugation and tested for potassium, lactate dehydrogenase (LD), aspartate aminotransferase (AST) and hemolysis index (HI) on Roche Cobas.

Results:

No specimen was discarded for unsatisfactory venipuncture. No differences for age and gender were observed between groups. As regards the four parameters investigated, no significant differences could be observed between patients in whom blood was drawn with or without letting the alcohol dry. It is also noteworthy that no sample in both groups exceeded the conventional sample rejection threshold of cell-free hemoglobin.

Conclusions:

The results of our prospective, randomized study attest that failure to wipe alcohol at the site of venipuncture should not be considered as a potential source of spurious hemolysis when drawing blood.     

Teachers’ attitudes toward integration of students with disabilities in Haïti and the United States

This investigation compared the attitudes of teachers toward integration of students with disabilities in Haïti and the United States. A sample of 152 high school teachers in Haïti and 216 high school teachers in the United States was asked to complete a background questionnaire and the Opinions Relative to the Integration of Students with Disabilities scale (Antonak & Larrivee, 1995 Antonak, R and Larrivee, B. (1995). Psychometric analysis and revision of the Opinions Relative to Mainstreaming Scale. Exceptional Children, 62(2): 139–142.  [Google Scholar]). Results showed that teachers in both countries had similar attitudes toward the integration of students with disabilities. Years of experience was individually correlated with attitudes, but it was not a significant predictor when other variables were included in a multiple regression. Three variables predicted attitudes toward integration of students with disabilities. Teachers’ attitudes explained the largest variance, followed by advanced degree, and range of effective accommodation of different categories of disabilities.     

Cumulative Risk,the Mother–Child Relationship,and Social-Emotional Competence in Latino Head Start Children

Research Findings: Supportive mother–child interactions promote the development of social-emotional competence. Poverty and other associated psychosocial risk factors have a negative impact on mother–child interaction. In spite of Latino children being disproportionately represented among children living in poverty, research on mother–child interactions among economically disadvantaged Latino families remains scarce and results are mixed. The current study used an ecological approach to examine the relationship between maternal cumulative risk, child developmental delay, observed and self-reported quality of the mother–child relationship, time spent in Head Start, and teachers’ and parents’ ratings of social-emotional competence among 106 Latino Head Start children and their mothers. Cumulative risk showed a negative association with observed maternal supportiveness and self-reported quality of the mother–child relationship. Cumulative risk had negative and positive indirect effects, respectively, on child social competence and problem behavior through perceived quality of the mother–child relationship. This association only occurred when parent ratings of child behavior were used. Time spent in Head Start moderated the association between observed maternal supportiveness and social competence. Practice or Policy: Implications for providers and researchers attempting to improve social-emotional competence in disadvantaged Latino children by enhancing positive and supportive parenting practice are discussed.     

Cross-over, thresholds, and interactions between science and technology: lessons for less-developed countries

Presently, science is an important precondition for the economic development of less-developed countries. This paper discusses the specific roles that science has at initial stages of development, pointing to its contributions for the countries’ absorptive capability. Furthermore, this paper specifies the role of science for initiating a positive interaction with technological development, since initial stages of development and during catching up processes. For less-developed countries, neither the linear model of technology nor an “inverted linear model” would take place: a more interactive approach is necessary for development. Using statistics of patents (USPTO) and scientific papers (ISI) for 120 countries (1974, 1982, 1990, and 1998), this paper analyses some evidences on thresholds levels of scientific production to originate an interactive relationship between science and technology. These data also document that the value of this threshold seems to double from one period to another. Although this paper presents tentative results, some policy implications are discussed: scientific institutional building must be seen as a component of modern industrial policies.     

The marketised university and the politics of motherhood

In this paper, we offer a critique of neoliberal power from the perspective of the gendered, sexualised, raced and classed politics of motherhood in English universities. By using dialogical auto-ethnographic methods to examine our own past experiences as full-time employed mother–academics, we demonstrate how feminist academic praxis can not only help make the gendered workings of neoliberal power more visible, but also enable us to nurture and sustain alternative ways of being and working in, against and outside the university. Far from desiring greater inclusion into a system which enshrines repressive logics of productivity and reproduces gendered subjectivities, inequalities, silences and exclusions, we aim to refuse and transgress it by bringing feminist critiques of knowledge, labour and neoliberalism to bear on how we understand our own experiences of motherhood in the academic world.     

Architectural Support for Context-Aware Mobile Learning Applications

Education and Information Technologies - Context-aware mobile learning applications provide learning materials to suit the needs of individual learners. Despite several applications developed,...     

Transformation of classroom spaces: traditional versus active learning classroom in colleges

Educational environment influences students’ learning attitudes, and the classroom conveys the educational philosophy. The traditional college classroom design is based on the educational space that first appeared in medieval universities. Since then classrooms have not changed except in their size. In an attempt to develop a different perspective of educational environment, a new design of classroom, the active learning classroom (ALC), was established at SoongSil University in Korea. Two questionnaire surveys were conducted for diagnosing the educational effects of students’ learning in the ALC and comparing the results with those obtained regarding the traditional classroom. The result proved the existence of a ‘golden zone’ and a ‘shadow zone’ in the traditional classroom, which discriminate students’ learning experiences depending on seating positions. On the contrary, the ALC did not produce such positional discrimination. Students perceived the ALC environment as more inspirational, especially in regards to active class participation. Students with more emphasis on academic achievement showed greater tendency to share information and to create new ideas in the ALC. However, in the traditional classroom setting, only students with high GPAs were more motivated to learn while the gap in learning attitudes was offset in the ALC setting. In-depth discussions about research findings were undertaken and four suggestions were provided in support of school administrators and relevant institutional personnel, faculty members, and researchers for future utilization of the ALC.     

Predicting writing skill development with word recognition and preschool readiness skills

In this longitudinal study, the writing skill development of154 Finnish-speaking children was followed from preschool to thethird grade. The focus was on predictive associations betweenpreschool writing readiness skills and later mechanics ofwriting, as well as between word recognition skill, mechanics ofwriting, and composition coherence. In addition, comparisons weremade between boys and girls to see to what extent writing skilldevelopment is gender-specific. Multi-group structural equationmodeling was used for statistical analysis. The results indicatedthat both mechanics of writing and composition coherence could bepredicted from performance on the same skill at an earlier pointin time. Preschool measures of phonological and visual-motorskills predicted later mechanics of writing. Word recognitionworked as a predictor of later mechanics of writing andcomposition coherence, but only starting from second grade, whenthe development of the word recognition skill had becomestabilized at a high enough level. Furthermore, first grademechanics of writing predicted second grade compositioncoherence, but only at this early stage of productive writingwhen there were still difficulties in the mechanics of writing.Girls were better at tasks measuring mechanics of writing andwrote more coherent stories than boys. The gender difference inthe mechanics of writing at the first grade level was explainedby the presented model. Educational implications were discussed.