For 25 years the NASA/GSFC Software Engineering Laboratory (SEL) has been a major resource in software process improvement activities. But due to a changing climate at NASA, agency reorganization, and budget cuts, the SEL has lost much of its impact. In this paper we describe the history of the SEL and give some lessons learned on what we did right, what we did wrong, and what others can learn ...

Selenium (Se) belongs to nutrients that are essential for human health. Biological activity of this compound, however, mainly depends on its dose, with a potential of Se to induce detrimental effects at high doses. Although mechanisms lying behind detrimental effects of Se are poorly understood yet, they involve DNA damage induction. Consequently, DNA damage response and repair pathways may pla...

This study aims to reveal the effect of gamified response system, Kahoot!, on attitude towards EFL course, motivation and exam anxiety. For this purpose, an embedded mixed design, in which quantitative qualitative methods used together, was preferred. The group consist 88 ninth grade vocational high school students. Before experiment, attitude, anxiety scales were applied experimental control g...

Computer anxiety as a kind of state anxiety that refer to “the negative emotional and cognitive reactions in some people that occur during work with the computer” and maybe considered as a challenge to their capabilities. In the present study, computer anxiety and positive and negative attitudes to it were examinated among undergraduate students of Kangavar Payam-e-Noor University. This descrip...

A large field study of children in first and second grade explored how parents' anxiety about math relates to their children's math achievement. The goal of the study was to better understand why some students perform worse in math than others. We tested whether parents' math anxiety predicts their children's math achievement across the school year. We found that when parents are more math anxi...

Currently, the teaching of retake GCSE mathematics in further education is predominantly teacher-centred and transmission-oriented. This paper argues that this approach is ineffective for students’ learning and for their attitudes towards learning and that a student-centred, collaborative approach to learning, where discussion and reflection are central, can prove more effective in developing s...

This study investigated how automatically activated racial attitudes are affected by relatively long-term interracial relationships. A natural field experiment was conducted in a college dormitory system. Participants were White freshmen who had been randomly assigned to either a White or an African American roommate. Students participated in two sessions during the first 2 and last 2 weeks of ...

The article is a longitudinal review of experimental research of high didactic systems effects in history teaching over the last 30 years. The aims of research are to evaluate: 1. position of adolescent, especially neurotic pupils in the teaching process; 2. possibilities to enhance the level of restructured matter (historical anthropology) in programmed and problem-solving teaching; 3. influen...

BACKGROUND AND OBJECTIVES Intolerance of uncertainty (IU) is a trans-diagnostic construct involved in anxiety and related disorders. Research focused on cross-sectional reporting, manipulating attitudes toward objective and impersonal events or on treatments designed to reduce IU in clinical populations. The current paper presents an experimental procedure for laboratory manipulations of IU and...