Ara
Toplam kayıt 41, listelenen: 21-30
Convenient synthesis of disubstituted tacrine derivatives via electrophilic and copper induced reactions
(Pergamon-Elsevier Science Ltd, 2016)
The bromination of 2-aminobenzonitrile (2) with molecular bromine (2 equiv) furnished 2-amino-3,5-dibromobenzonitrile (7) in 98% yield. One-pot syntheses are described for dibromotacrine derivatives (6,14-18) utilizing ...
Effect of heat treatment on the microstructures and mechanical properties of Al-5.5Zn-2.5Mg alloy
(Elsevier Science Sa, 2016)
The Al-5.5 Zn-2.5 Mg (wt%) ternary alloy was prepared using a vacuum melting furnace and a casting furnace. Microstructural and mechanical properties of the alloy were investigated as-cast and under heat-treated conditions. ...
An Examination of Cross Sectional Change in Student's Metaphorical Perceptions towards Heat, Temperature and Energy Concepts
(Necmettin Erbakan Univ, 2016)
In science teaching, metaphors are important tools for understanding meaningful learning and conceptual formation by the help of daily life language. This study aims to evaluate how the concepts of heat, temperature and ...
Augmented reality in science laboratories: The effects of augmented reality on university students' laboratory skills and attitudes toward science laboratories
(Pergamon-Elsevier Science Ltd, 2016)
This study investigated the effects of the use of augmented reality (AR) technologies in science laboratories on university students' laboratory skills and attitudes towards laboratories. A quasi-experimental pre-test/post-test ...
The adaptation of the pedagogical knowledge and skills survey into Turkish: Validity and reliability study
(Mehmet Tekerek, 2019)
This research aims to adapt the Pedagogical Knowledge and Skills in Teaching (PKST) survey developed by Wong, Chong, Choy and Lim (2012) to Turkish. The participants of the study are 830 4th year students of education ...
The investigation of the healing effect of active ingredients in traditional medicinal plants on lung cancer
(HUMANA PRESS INC, 2020)
The healing effect of herbal active compounds on lung cancer has been recently investigated. Lung cancer is one of the leading types of cancer. The causes and prevention of lung cancer diagnosis have an important role as ...
Novel piperazine and morpholine substituted quinolines: Selective synthesis through activation of 3,6,8-tribromoquinoline, characterization and their some metabolic enzymes inhibition potentials
(ELSEVIER, 2020)
Regioselective routes are described for convenient preparation of novel piperazine/morpholine substituted quinoline derivatives at C-3, C-6 and C-8 starting with 3,6,8-tribromoquinoline (6) by nucleophilic substitution via ...
The Effect of REACT and Computer-Assisted Instruction Model in 5E on Student Achievement of the Subject of Acids, Bases and Salts
(SPRINGER, 2020)
This research was carried out to investigate the effect of the 5E learning method and 5E method enriched with REACT strategy on student achievement in science education. The research was carried out with 64 first-year ...
Structural Characterization of 6-Bromo-5-nitroquinoline-1-oxide: A Quantum Chemical Study and XRD Investigations
(2018)
The chemical properties of recently synthesized 6-bromo-5-nitroquinoline-1-oxide under a mild reaction condition by regioselective nitration of 6-bromoquinoline-1-oxide at C5 on going our research were investigated as ...
The effect of interactive whiteboard supported inquiry- based learning on achievement and motivation in physics and views of prospective teachers toward the instruction
(2013)
Bu çalışmada, sorgulamaya dayalı öğrenme yaklaşımına uygun etkileşimli tahta destekli modern fizik öğretiminin akademik başarı ve motivasyona etkisi incelenmiş ve öğretmen adaylarının etkileşimli tahta destekli öğretime ...