Search results for "Secondary"
showing 10 items of 1765 documents
Exploring grade 9 students' assumption making when mathematizing
2015
International audience; Making assumptions is a key activity in modelling. The present study aims to explore the variety of assumptions that lower secondary students make in this process. As theoretical basis for the data analysis, we used the modelling cycle by Blum and Leiss (2007) and framed a definition of assumptions. The study was carried out with grade 9 students. The results show three categories of assumptions: (1) parameter assumptions, (2) assumptions for the choice of the mathematical model, and (3) assumptions about task expectations. Assumptions from the first two categories assist students to use extra-mathematical knowledge to construct a mathematical model, while the third …
Impact of physical effort on von Willebrand factor’s activity and concentration in blood
2020
Background and Study Aim: Physical exercise causes a wide range of physiological changes including the production and release of haemostasis regulating factors. One of these factors is von Willebrand factor (vWf)- a glycoprotein responsible for both platelet adhesion and coagulation cascade. Material and Methods: The impact of physical effort on von Willebrand’s factor’s concentration (vWf:Ag) and activity (vWf:CBA) underwent analysis in the group of 42 people (22 men and 20 women) aged 19-22 (mean 20, SD 8 months). Physical effort was induced by 35 minutes of swimming in indoor swimming pool. Results: Physical exercise in form of swimming causes an increase of Willebrand’s factor’s concent…
Motivational strategies used by principals in the management of schools : the case of some selected secondary schools in the Fako Division of the Sou…
2015
ABSTRACT The study examined the Motivational Strategies of Principals in the Management of selected secondary Schools in Fako Division of the Southwest Region of Cameroon. The study was guided by three research objectives and three research questions. The descriptive survey design was used to collect data from a representative sample of the population using questionnaires for teachers and principals. The data was analyzed using means and standard deviation and presented on tables and histograms. The findings revealed that: motivational strategies of principals include those related to Empathetic, Supportive, caring and just on academic and disciplinary matters; positive leadership Character…
Effect of self-determined motivation in physical education on objectively measured habit physical activity : a trans-contextual model
2019
Grounded in the trans-contextual model, the purpose of the present study was to examine the role of self-determined motivation in Physical Education (PE) on self-determined motivation in Physical Activity (PA), PA intention, and accelerometer-measured habitual PA behavior among high-school aged adolescents. A sample of 394 Spanish high-school students (211 males and 183 females; aged 12-16 years) participated in the present study. The outcome measure of PA was established using accelerometry, whereas motiva- tion toward PA and PE as well as PA intention were measured using validated questionnaires. Path analyses supported in part the central propositions of the trans-contextual model. Self-…
The Comparison of Self-Perception of the Use of Learning Strategies in Spanish and Lithuanian Secondary Students When Learning Science
2021
Improving students‘ learning strategies is important for them in order to learn successfully. This article compares the self-perception of the use of learning strategies in Spanish and Lithuanian secondary schools students when learning science and analyse the students understanding of these strategies to determine the sociocultural environment influence on this perception. Results emphasize the need to include support actions to improve the management of strategies in secondary school.
Wpływ czynników biotycznych i abiotycznych na wzrost i rozwój Dionaea muscipula oraz warunki prowadzenia hodowli
2018
W pracy przedstawiono sposób namnażania rośliny owadożernej z rodziny Droseraceae –Dionaea muscipula (Muchołówka amerykańska), występującej w środowisku naturalnym jedynie na terenach Karoliny Północnej oraz Karoliny Południowej oraz sposoby jej uprawy wpływające na jakość hodowli. Podstawowymi czynnikami są prawidłowe nasłonecznienie, nawodnienie, zapewnienie roślinie odpowiedniego podłoża, systematyczna pielęgnacja i prawidłowa temperatura otoczenia. Rośliny te nie wymagają nawożenia m.in. ze względu na umiejętność pozyskiwania składników ze schwytanych owadów. Pomimo faktu, że Dionaea muscipula jest gatunkiem monotypowym, powstało wiele różnorodnych kultywarów występujących w hodowlach n…
Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam
2020
Electron antineutrino appearance is measured by the T2K experiment in an accelerator-produced antineutrino beam, using additional neutrino beam operation to constrain parameters of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix. T2K observes 15 candidate electron antineutrino events with a background expectation of 9.3 events. Including information from the kinematic distribution of observed events, the hypothesis of no electron antineutrino appearance is disfavored with a significance of 2.40 σ and no discrepancy between data and PMNS predictions is found. A complementary analysis that introduces an additional free parameter which allows non-PMNS values of electron neutrino and a…
Association of low 25-hydroxyvitamin D concentrations with elevated parathyroid hormone concentrations and low cortical bone density in early puberta…
2003
Background: Very few studies have evaluated both parathyroid hormone (PTH) and 25-hydroxyvitamin D [25(OH)D] and their effects on bone mass in children. Objective: We studied the associations of serum 25(OH)D and intact PTH (iPTH) with bone mineral content (BMC) and bone mineral density (BMD) at different bone sites and the relation between serum 25(OH)D and iPTH in early pubertal and prepubertal Finnish girls. Design: The subjects were 10‐12-y-old girls (n = 193) at Tanner stage 1 or 2, who reported a mean (± SD) dietary calcium intake of 733 ± 288 mg/d. 25(OH)D, iPTH, tartrate-resistant acid phosphatase 5b (TRAP 5b), urinary calcium excretion, BMC, areal BMD, and volumetric BMD were asses…
Verification and Validation of the Musical Self-Concept Inquiry (MUSCI) to Measure ’Musical Self-Concept’ of German Students at Secondary Education S…
2016
Musical development can be very differently during adolescence and the mechanisms and reasons, which lead to these differences, are often objects of music educational research. To measure the aspects of musical development of German students, the psychometric construct ‘musical self-concept’ can be used. So the first aim of this study was to verify the factor structure of the initial MUSCI-questionnaire to measure ‘musical self-concept’ of German students. The second aim was to re-specify the underlying factor model as well as to validate the renewed sub-facets of the questionnaire with musicspecific background variables (e. g. interest in ‘music’) as well as the construct ‘musical sophisti…