Eksperimentasi Model Pembelajaran Kooperatif Stad Dengan Autograph Ditinjau Dari Sikap Percaya Diri Dan Kreativitas Siswa Kelas VIII SMP Di Kabupaten Magetan Tahun Ajaran 2013/2014

The aim of this study was to determine and compare cooperative learning model of STAD by AutoGraph and STAD viewed of self-confidence and creativity. This study was a quasi experimental research with 2x2x2 factorial design. The population of this study was all students of junior high school in Magetan Regency in academic year 2012/2013. Sampling was done by stratified cluster random technique. The total of sample was 172 students, with details of 86 students for first experiment class and 86 students for second experiment class. The instruments used to collect data were test of prior knowledge in mathematics, self-confidence questionnaire, creativity questionnaire and mathematics achievement test. The balance test of students prior knowledge in mathematics data used t-test and concluded that two of experimental classes have balance prior knowledge in mathematics. The testing of hypothesis used three-way analysis of variance with unballanced cell. The testing of hypothesis concluded as follows. (1) The students who taught by cooperative learning model of STAD by AutoGraph type have same mathematics achievement than students who taught by cooperative learning model of STAD type. (2) The students who have high self-confidence have better mathematics achievement than students who have low self-confidence. (3) Students who have high creativity have better mathematics achievement than students who have low creativity. (4) There was an interaction between learning model and self-confidence toward mathematics achievement. The students taught by cooperative learning model of STAD by AutoGraph type and who have high self-confidence have better mathematics achievement than the students who have low self-confidence. (5) There was no an interaction between learning model and creativity toward mathematics achievement. (6) There was no an interaction between self-confidence and creativity toward mathematics achievement. (7) There was an interaction between learning model, self-confidence and creativity toward mathematics achievement. The students taught by cooperative learning model of STAD type and who have low self-confidence and high creativity have better mathematics achievement than the students who have low creativity

A Delayed Black and Scholes Formula I

In this article we develop an explicit formula for pricing European options when the underlying stock price follows a non-linear stochastic differential delay equation (sdde). We believe that the proposed model is sufficiently flexible to fit real market data, and is yet simple enough to allow for a closed-form representation of the option price. Furthermore, the model maintains the no-arbitrage property and the completeness of the market. The derivation of the option-pricing formula is based on an equivalent martingale measure

Precise 3D track reconstruction algorithm for the ICARUS T600 liquid argon time projection chamber detector

Liquid Argon Time Projection Chamber (LAr TPC) detectors offer charged particle imaging capability with remarkable spatial resolution. Precise event reconstruction procedures are critical in order to fully exploit the potential of this technology. In this paper we present a new, general approach of three-dimensional reconstruction for the LAr TPC with a practical application to track reconstruction. The efficiency of the method is evaluated on a sample of simulated tracks. We present also the application of the method to the analysis of real data tracks collected during the ICARUS T600 detector operation with the CNGS neutrino beam.Comment: Submitted to Advances in High Energy Physic

Search for anomalies in the {\nu}e appearance from a {\nu}{\mu} beam

We report an updated result from the ICARUS experiment on the search for {\nu}{\mu} ->{\nu}e anomalies with the CNGS beam, produced at CERN with an average energy of 20 GeV and travelling 730 km to the Gran Sasso Laboratory. The present analysis is based on a total sample of 1995 events of CNGS neutrino interactions, which corresponds to an almost doubled sample with respect to the previously published result. Four clear {\nu}e events have been visually identified over the full sample, compared with an expectation of 6.4 +- 0.9 events from conventional sources. The result is compatible with the absence of additional anomalous contributions. At 90% and 99% confidence levels the limits to possible oscillated events are 3.7 and 8.3 respectively. The corresponding limit to oscillation probability becomes consequently 3.4 x 10-3 and 7.6 x 10-3 respectively. The present result confirms, with an improved sensitivity, the early result already published by the ICARUS collaboration