Bu çalışmanın amacı fen bilimleri öğretmenlerinin TIMSS sınavı farkındalığını ve 2019 performansını nasıl değerlendirdiklerini belirlemektir. Çalışma grubu 2021-2022 eğitim öğretim yılında Gaziantep ili Nizip ilçesinde görev yapan 23 öğretmeninden oluşmuştur. Yarı yapılandırılmış görüşme formu ile veriler toplanmıştır. temel nitel bir araştırma olup, içerik analizi analiz edilmiştir. Çalışmada ...

Immunomagnetic beads (IMBs) for cell sorting are universally used in medical and biological fields. At present, the IMBs on market ferrite coated with a silicon shell. Based new type of magnetic material, graphene iron nitride particle (G@FeN-MP), which we previously reported, prepared novel IMB, oxide immune bead (GO@FeN-IMBs), explored its feasibility sorting. First, surface G@FeN-MP was oxid...

The structure of the title compound, [Fe(2)(C(17)H(16)N(2)O(2))(2)(OH)(2)]·2C(3)H(7)N, consists of centrosymmetric dimeric units in which crystallographically equivalent Fe(III) ions are doubly bridged by hydroxide groups. Each Fe(III) center in the complex has a six-coordinated distorted cis-FeN(2)O(4) octa-hedral geometry.

Hsiu-Fen Jao, M.S., Tze-Kiong Er, Ph.D., Jen-Kuei Hsiao, M.S., and Chein-Hua Chiang, M.S. Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung; Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung,...

Cheng-Fu CAO, Feng ZHANG, Hong Chen, Jun-Xian SONG, Chuan-Fen LIU, Su-Fang LI, Chong-You LEE Department of Cardiology, Peking University People’s Hospital, Beijing, China Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Peking University People’s Hospital, Beijing, China Center for Cardiovascular Translational Research, Peking University People’s Hospi...

To better understand the climate, vegetation and fire history of southern South America since the last deglaciation, sediment characteristics, diatoms, pollen, microscopic and macroscopic charcoal and magnetic susceptibility were analyzed in a 14-m long sediment core from a closed basin fen at Lago Pollux, Aisén Province, southern Chile (45°41′30′′ S lat, 71°50′30′′ W long, 640 m elev.). Sedime...

Wetlands are sources of denitrification-derived nitrous oxide (N2O). Thus, the denitrifier community of an N2O-emitting fen (pH 4.7 to 5.2) was investigated. N2O was produced and consumed to subatmospheric concentrations in unsupplemented anoxic soil microcosms. Total cell counts and most probable numbers of denitrifiers approximated 10(11) cells x g(DW)(-1) (where DW is dry weight) and 10(8) c...