Pathogenicity of bacterium, Xenorhabdus nematophila isolated from entomopathogenic nematode （Steinernema carpocapsae） and its secretion against Galleria mellonella larvae

INTRODUCTION Entomopathogenic nematodes of the generaSteinernema and Heterorhabditis have been used tocontrol a wide range of agriculturally important insectpests (Kaya and Gaugler, 1993). The mechanism bywhich these nematodes are able to infect and repro-duce in the insect host involves a mutual relationshipbetween the nematode and the symbiotic bacteria,Xenorhabdus spp. and Photorhabdus spp. (Akhurstand Dunphy, 1993; Forst and Nealson, 1996). Poinarand Thomas (1966) established tha…     

A matrix method for solving high-order linear difference equations with mixed argument using hybrid legendre and taylor polynomials

A numerical method for solving the higher order linear difference equations with variable coefficients and mixed argument under the mixed conditions is presented. The method is based on the hybrid Legendre and Taylor polynomials. The solution is obtained in terms of Legendre polynomials. IIIustrative examples are included to demonstrate the validity and applicability of the technique.     

Effects of technology-enhanced constructivist learning on science achievement of students with different cognitive styles

Education and Information Technologies - The purpose of this study is to examine the effect of technology-enhanced constructivist learning on science achievement of seventh-grade students with...     

Militarising school: militarism in the Turkish educational system (1926–1947)

With the advent of modern states, a mandatory relationship and interaction emerged between compulsory education, military service, and the practices of citizenship. Producing a loyal citizen required a disciplined, central, and compulsory education. In the nineteenth century when greatness was linked to armament, education was considered a vital aspect of social and military mobilisation. For this reason, rituals and practices in favour of military service were included in many education programmes. New applications were introduced and military themes integrated into courses such as physical education, gymnastics, history, and geography. Similar initiatives were seen in the Ottoman Empire in the second half of the nineteenth century. Thereafter, military education and paramilitary organisations which became popular during the First World War gained another dimension in the republican period that followed the collapse of the empire. Military service preparation was made a compulsory course at every educational level in Turkey in 1926, and included an annual 20-day camping exercise. The programme is a little-investigated topic of Turkish education history but is widely considered to have played a key role in shaping social attitudes in the country. This article reports the findings of an analysis of first-hand sources and archive documents relating to the Military Service Preparatory Programme in Turkey between 1926 and 1947 and its lasting effects.     

Utilization of biological variation data in the interpretation of laboratory test results – survey about clinicians’ opinion and knowledge

IntroductionTo interpret test results correctly, understanding of the variations that affect test results is essential. The aim of this study is: 1) to evaluate the clinicians’ knowledge and opinion concerning biological variation (BV), and 2) to investigate if clinicians use BV in the interpretation of test results.Materials and methodsThis study uses a questionnaire comprising open-ended and close-ended questions. Questions were selected from the real-life numerical examples of interpretation of test results, the knowledge about main sources of variations in laboratories and the opinion of clinicians on BV. A total of 399 clinicians were interviewed, and the answers were evaluated using a scoring system ranked from A (clinician has the highest level of knowledge and the ability of using BV data) to D (clinician has no knowledge about variations in laboratory). The results were presented as number (N) and percentage (%).ResultsAltogether, 60.4% of clinicians have knowledge of pre-analytical and analytical variations; but only 3.5% of them have knowledge related to BV. The number of clinicians using BV data or reference change value (RCV) to interpret measurements results was zero, while 79.4% of clinicians accepted that the difference between two measurements results located within the reference interval may be significant.ConclusionsClinicians do not use BV data or tools derived from BV such as RCV to interpret test results. It is recommended that BV should be included in the medical school curriculum, and clinicians should be encouraged to use BV data for safe and valid interpretation of test results.     

Pre-service teachers' use of reading strategies in their own readings and future classrooms

The main purpose of this study was to determine pre-service teachers' use of reading strategies in their own readings. In addition, pre-service teachers' use of these strategies in their future teaching practices was also investigated. The subjects for this study were 505 pre-service teachers enrolled in one of the major universities in Ankara. The results of the study revealed that pre-service teachers employed 28 out of 38 reading strategies most of the time, but interview results illustrated that they reported using very limited scope of reading strategies. An interesting finding in this study was that all subjects accepted the responsibility to teach and improve their future students' reading skills.