Alpha Magnetic Spectrometer (AMS02) experiment on the International Space Station (ISS)

The Alpha Magnetic Spectrometer experiment is realized in two phases. A precursor flight (STS-91) with a reduced experimental configuration (AMS01) has successfully flown on space shuttle Discovery in June 1998. The final version (AMS02) will be installed on the International Space Station (ISS) as an independent module in early 2006 for an operational period of three years. The main scientific objectives of AMS02 include the searches for the antimatter and dark matter in cosmic rays. In this work we will discuss the experimental details as well as the improved physics capabilities of AMS02 on ISS.Comment: 13 pages, 26 figures, Invited talk given at Shanghai Institute of Nuclear Researc

ORTAÖĞRETİM ÖĞRENCİLERİNİN KÜRESEL ISINMA HAKKINDAKİ BİLGİLERİ ÜZERİNE BİR ARAŞTIRMA

In this research, an achievement test about global warming was administered to 193 selected students attending various high schools in Turkey. Their knowledge about global warming on theoretical, contemporary effects, and necessary precautions were measured. Using a self disclosure form, some characteristics of the students such as academic backgrounds of their parents, type of high school, and their economic status and whether the students had been involved in an activity on the subject before the examination were obtained. The data was analyzed by the statistical programs: Statistical Package for the Social Sciences (SPSS), Finesse, and then t test, Analysis of Variance (ANOVA), and correlation results were determined. The reliability (Cronbach's a) of the test was found to be 0.734. Considering the findings of the research, of three groups of question, the students were most knowledgeable about the effects of global warming

Fashion as a Marketing Tool and Its Communication Aspect in Developing Markets

In this article the idenfication of a fashion product, its variability and the analyses of fashion as an industrial design will be discussed within the framework of fashion product marketing. The process of product creation is closely related to the economic, sociological and psychological factors considered, hence, sociologists and trend setters are working together because the concept of fashion product should be viewed as a determiner of status and power of a certain community. Each group within the community should be defined within a certain status and therefore each status corresponds to a relevant fashion concept. The survival of the fashion designers within the industrial sector could only be plausable if fashion is firstly analyzed conceptually and then applied separately to each group of the community

Effect of Project Based Learning on Academic Achievement of Chemistry Teacher Candidates in the Application of Spectroscopic Analysis Method

Bu çalışmada, Analitik Kimya laboratuvar dersi “Işık-madde etkileşimine dayanan UV/Görünür bölge spektroskopik analiz yöntemi uygulamaları” konusunda, proje tabanlı öğrenme yaklaşımının öğrencilerin akademik başarılarına etkisi incelenmiştir. Araştırmada, ön ve son test kontrol gruplu yarı deneysel desen kullanılmıştır. Konu, deney grubunda proje tabanlı öğrenme yaklaşımı ile kontrol grubunda ise öğretim programına uygun şekilde yürütülmüştür. Son test akademik başarı puanlarının Mann-Whitney U Testi analizi sonuçlarına göre; öğrencilerin akademik başarılarında proje tabanlı öğrenme yaklaşımının kullanıldığı deney grubu lehine anlamlı bir fark olduğu gözlenmiştir (p<.05). Wilcoxon işaretli sıralar testi sonuçları; deney ve kontrol gruplarının her ikisinde de grup içi akademik başarı puanlarında artış olduğunu göstermiştir. Cohen’s d değerine göre, deney grubunda uygulanan öğrenme yaklaşımının büyük etki değerine sahip olduğu söylenebilir (d=0,88). Yarı yapılandırılmış görüşmelerin içerik analizinden elde edilen sonuçlar, deney grubu öğrencilerinin konunun uygulanan öğrenme yaklaşımı ile işlenmesini daha akılda kalıcı bulduklarını göstermiştir.In this work, the effect of project based learning approach on students’ academic achievement on the topic of “Application of UV/Visible spectroscopic analysis method based on light-matter interaction” in Analytical Chemistry Laboratory lesson. Pre- and post-test quasi experimental design with control group was applied in this research. In the experimental group, the subject was carried out with the project based learning approach and in the control group in accordance with the teaching program. It was observed that there was a significant difference in the students’ academic achievement in favour of the experimental group in which the project based learning approach was used according to the Mann-Whitney U test analysis results of the post-test academic achievement scores (p<.05). Wilcoxon signed rank test results showed that the increase of students’ academic achievement of within both groups. It can be also stated that project based learning approach has a great effect size considering to Cohen’s d value (d=0.88). Content analysis of semistructured interview results demonstrated that the experimental group students find it more memorable to process the subject with an applied approach

The Investigation of Electrochemical Behaviour of NADH with TBO at a Glassy Carbon Electrode

Electrochemical oxidation studies of NADH with different mediators have been made recently. It was shown that the reduction of NAD+ is more difficult than the oxidation of NADH. On the other hand, regenaration of some mediator systems which are immobilised on the same electrode surface takes a long time2. Therefore, the study of electrochemical behaviour of different mediator and NADH at a bare glassy carbon electrode will become a base for other relevant studies. In this study, electrochemical behaviour of TBO with NADH is investigated by differential puls and cyclic voltammetry and the influence of the temperature, different buffer systems, pH range and electrolyte type was optimised

Türkiye’de et tüketimi ve sürdürülebilirlik

This study was carried out to determine the amount of meat consumption by adult individuals and its affecting factors in Turkey and to evaluate them within the framework of sustainable nutrition and climate change. The study was completed with 613 adult individuals between 1-31 March 2021. It was determined that the average red meat consumption was per capita 49.34 +/- 53.73 g/day Those with an income of more than 15000 Turkish lira consumed 45.95 g more red meat than those with an income of less than 3000 Turkish lira. "Taste" was the most commonly cited reason for consuming red meat. While 60.8% of the participants reported that they would reduce their red meat consumption for environmental health, 76.7% of them stated that they would not consume artificially produced red meat. In this study, it was determined that women consumed less meat group foods than men and participants with lower incomes consumed less than those with higher incomes. The amount of red meat consumption was found to be about half of the global average. More studies are required to evaluate the effect of nutrition style on climate change in Turkey.Bu çalışma, Türkiye’de yetişkin bireylerin et tüketim miktarını ve etkileyen faktörleri belirlemek ve sonuçları sürdürülebilir beslenme ve iklim değişikliği çerçevesinde değerlendirmek amacıyla yapılmıştır. Çalışma verileri 1-31 Mart 2021 tarihlerinde 613 yetişkin bireyden toplanmıştır. Çalışmada kırmızı et tüketiminin ortalama kişi başı 49,34±53,73 g/gün olduğu belirlenmiştir. Geliri 15000 TL üstü olanların, geliri 3000 TL altı olanlara göre 45.95 g daha fazla kırmızı et tükettiği belirlenmiştir. Kırmızı et tüketme nedeni olarak “lezzet” en çok belirtilendir. Katılımcıların %60,8’i çevre sağlığı için kırmızı et tüketimini azaltabileceğini bildirirken, %76,7’si yapay olarak üretilmiş kırmızı eti tüketmeyeceğini belirtmişlerdir. Bu çalışmada kadınların erkeklerden, düşük gelirlilerin de yüksek gelirlilerden daha az miktarda et grubu besinleri tükettiği belirlenmiştir. Kırmızı et tüketim miktarı küresel ortalamanın yaklaşık yarısı kadar bulunmuştur. Türkiye’de beslenme tarzının iklim değişikliğine etkisini değerlendirecek daha fazla çalışmaya ihtiyaç vardır

A STUDY ON THE EFFECT OF CASE BASED LEARNING FOR PRE-SERVICE SCIENCE TEACHERS' ATTITUDES TOWARDS AN ANALYTICAL CHEMISTRY LABORATORY EXPERIMENT

It is aimed to analyze the change of the pre-service science teachers‘ attitudes towards chemistry laboratories using case-based learning, an active learning method, in this research. This research is an semi-experimental study with a control group. The sample of this research was originated by the second-year students (N=61) of the department of science education in Dokuz Eylul University, Faculty of Buca Education. In the first stage of the research, a case about the experiment of determining the ionization constant of weak acid (Ka) was created and the case was discussed among the student groups in the experimental group as a workshop. In the second stage, the experiment was performed in the laboratory. And in the control group, the experiment was performed using conventional teaching methods. In conclusion, the effectiveness of case-based learning method in the attitudes of students towards chemistry laboratories was analyzed

Total and Partial Fragmentation Cross-Section of 500 MeV/nucleon Carbon Ions on Different Target Materials

By using an experimental setup based on thin and thick double-sided microstrip silicon detectors, it has been possible to identify the fragmentation products due to the interaction of very high energy primary ions on different targets. Here we report total and partial cross-sections measured at GSI (Gesellschaft fur Schwerionenforschung), Darmstadt, for 500 MeV/n energy $^{12}C$ beam incident on water (in flasks), polyethylene, lucite, silicon carbide, graphite, aluminium, copper, iron, tin, tantalum and lead targets. The results are compared to the predictions of GEANT4 (v4.9.4) and FLUKA (v11.2) Monte Carlo simulation programs.Comment: 10pages, 13figures, 4table