Tasarım Temelli Fen Eğitimine Yönelik Öğrenci ve Öğretmen Değerlendirmeleri

Bu araştırmada “Tasarım Temelli Fen Eğitimi” (TTFE) esas alınarak hazırlanan “Isı Yalıtımı Ülke Kazanımı” etkinliğine yönelik öğrenci değerlendirmelerinin ve uygulamayı yapan fen bilimleri öğretmeninin uygulama deneyimine yönelik görüşlerinin tespit edilmesi amaçlanmıştır. Araştırmanın modeli bütüncül tek durum çalışmasıdır. Araştırmanın çalışma grubunu altıncı sınıfta öğrenim gören 32 öğrenci ve 1 öğretmen oluşturmaktadır. Araştırmanın, öğrenci değerlendirmelerine yönelik verileri anket (TTFE Öğrenci Değerlendirmeleri Anketi) ve odak grup görüşme ile toplanmış, betimsel analiz (anket) ve içerik analizi (odak grup görüşme) ile çözümlenmiştir. Öğretmen görüşleri ile ilgili veriler ise yapılandırılmamış görüşme ile toplanmış, betimsel analiz ile çözümlenmiştir. Öğrenciler TTFE sürecini fen içeriğini öğrenmeyi sağlayıcı, günlük yaşam ile ilişkili, ilgi çekici ve motive edici olarak değerlendirmiştir. Uygulama öğretmeni de TTFE sürecini gerçek yaşama hazırlayıcı, mühendislik tasarım sürecini fark etmelerini destekleyici ve öğrenmeye motive edici yönüyle olumlu olarak değerlendirmiştir. TTFE esas alınarak hazırlanan “Isı Yalıtımı Ülke Kazanımı” etkinliği fen derslerinde STEM eğitimini gerçekleştirmek isteyen öğretmenler için alternatif öneri olabilir

A Proposal of the STEM Education for Teacher Training: Design Based Science Education

Bu araştırmada FeTeMM eğitim yaklaşımını fen sınıflarına yansıtabilmek amacıyla önerilen Tasarım Temelli Fen Eğitimi ile planlanan bir sürecin hizmet öncesi fen öğretmenlerinin eğitiminde uygulanması ve öğretmen adaylarının sürece yönelik değerlendirmelerinin tespit edilmesi amaçlanmaktadır. Durum çalışması desenindeki araştırmanın çalışma grubunu amaçlı örneklem seçme yöntemi ile belirlenen 6 fen bilimleri öğretmen adayı oluşturmaktadır. Tasarım temelli fen eğitimi uygulamalarının ortasında ve sonunda olmak üzere iki kez gerçekleştirilen yarı yapılandırılmış görüşmeler ile toplanan veriler, içerik analizi, betimsel analiz ve sürekli karşılaştırmalı analiz teknikleri bir arada kullanılarak analiz edilmiştir. Araştırmada öğretmen adaylarının mühendislik tasarım sürecinin en güçlü yönlerini yaparak öğrenmeyi sağlaması, büyük tasarım görevi hedefinin motive edici olması, kalıcı öğrenmeyi sağlaması ve sorgulamaya dayalı olması gibi özellikleriyle değerlendirdikleri tespit edilmiştir.This study primarily aims to investigate the pre-service science teachers' assessment on Design Based Science Education process. Thus, in order to reflect the Approach of the STEM education in science class Design Based Science Education implementation is conducted for pre-service science teachers. The "single embedded case study design" which is one of the case study patterns, used in this research. The study group is determined according to the intentional sample selection method which constitutes of 6 pre-service science teachers. The research data which were collected in the middle and at the end of the design based learning process, were carried out twice with the semi-structured interviews. Content analysis, descriptive analysis and, constant comparative analysis were performed together for data analysis. In the research, it is found that pre-service science teachers assess the most powerful dimensions of this process as; it enhances the learning by doing , the goal of major design task is motivating, it leads permanent learning, and it is based on questioning

Socio-Scientific Issues as a Context for STEM Education: A Case Study Research with Pre-Service Science Teachers

This study was designed as a case study. Participants were 12 senior pre-service science teachers (PSTs), who took theoretical and practical courses about STEM education and socio-scientific issues (SSIs) during their education at a state university. For the study, in the first 4 weeks, theoretical courses on SSIs and STEM education were carried out. Afterwards, PSTs were asked to choose a SSI and configure this issue as a problem statement to perform a STEM activity. Participants were given a total of 3 weeks to determine the issue and prepare the STEM activity, and the researchers of the study gave systematic feedback during this period. Then, starting from the fifth week of the study, groups started to implement their STEM activities in the class, where their peers were assigned as their students. The activity plans they prepare, the field notes taken by the researchers during the implementation of the activities and the semi-structured interviews about the opinions of the PSTs on the use of SSI in STEM education were the data sources of the study. Findings revealed that PSTs found establishing STEM problem situations over SSIs suitable since they provide features such as conformity to real life, having multiple criteria and providing compatibility with other disciplines. Moreover, after their practices, they pointed out that the activities enabled both the teaching of the SSI and the integrated teaching to be carried out. As a conclusion, it is recommended to use socio-scientific problem situations to perform STEM education

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

Search for stop and higgsino production using diphoton Higgs boson decays

Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass

Severe early onset preeclampsia: short and long term clinical, psychosocial and biochemical aspects

Preeclampsia is a pregnancy specific disorder commonly defined as de novo hypertension and proteinuria after 20 weeks gestational age. It occurs in approximately 3-5% of pregnancies and it is still a major cause of both foetal and maternal morbidity and mortality worldwide1. As extensive research has not yet elucidated the aetiology of preeclampsia, there are no rational preventive or therapeutic interventions available. The only rational treatment is delivery, which benefits the mother but is not in the interest of the foetus, if remote from term. Early onset preeclampsia (<32 weeks’ gestational age) occurs in less than 1% of pregnancies. It is, however often associated with maternal morbidity as the risk of progression to severe maternal disease is inversely related with gestational age at onset2. Resulting prematurity is therefore the main cause of neonatal mortality and morbidity in patients with severe preeclampsia3. Although the discussion is ongoing, perinatal survival is suggested to be increased in patients with preterm preeclampsia by expectant, non-interventional management. This temporising treatment option to lengthen pregnancy includes the use of antihypertensive medication to control hypertension, magnesium sulphate to prevent eclampsia and corticosteroids to enhance foetal lung maturity4. With optimal maternal haemodynamic status and reassuring foetal condition this results on average in an extension of 2 weeks. Prolongation of these pregnancies is a great challenge for clinicians to balance between potential maternal risks on one the eve hand and possible foetal benefits on the other. Clinical controversies regarding prolongation of preterm preeclamptic pregnancies still exist – also taking into account that preeclampsia is the leading cause of maternal mortality in the Netherlands5 - a debate which is even more pronounced in very preterm pregnancies with questionable foetal viability6-9. Do maternal risks of prolongation of these very early pregnancies outweigh the chances of neonatal survival? Counselling of women with very early onset preeclampsia not only comprises of knowledge of the outcome of those particular pregnancies, but also knowledge of outcomes of future pregnancies of these women is of major clinical importance. This thesis opens with a review of the literature on identifiable risk factors of preeclampsia

Search for anomalous production of events with three or more leptons in pp collisions at √s = 8TeV

Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published articles title, journal citation, and DOI.A search for physics beyond the standard model in events with at least three leptons is presented. The data sample, corresponding to an integrated luminosity of 19.5fb-1 of proton-proton collisions with center-of-mass energy s=8TeV, was collected by the CMS experiment at the LHC during 2012. The data are divided into exclusive categories based on the number of leptons and their flavor, the presence or absence of an opposite-sign, same-flavor lepton pair (OSSF), the invariant mass of the OSSF pair, the presence or absence of a tagged bottom-quark jet, the number of identified hadronically decaying τ leptons, and the magnitude of the missing transverse energy and of the scalar sum of jet transverse momenta. The numbers of observed events are found to be consistent with the expected numbers from standard model processes, and limits are placed on new-physics scenarios that yield multilepton final states. In particular, scenarios that predict Higgs boson production in the context of supersymmetric decay chains are examined. We also place a 95% confidence level upper limit of 1.3% on the branching fraction for the decay of a top quark to a charm quark and a Higgs boson (t→cH), which translates to a bound on the left- and right-handed top-charm flavor-violating Higgs Yukawa couplings, λtcH and λctH, respectively, of |λtcH|2+|λctH|2<0.21