Makale 2010-2019 yılları

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https://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/270

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Browsing Makale 2010-2019 yılları by All Authors "0000-0001-6744-7841"

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    Development of human resources through awareness education and training activities on occupational radiation protection for industrial radiography in Turkey
    (NT Council Materials Education, 2016) Zeyrek, C. Tuğrul; Akbıyık, Hayri; 0000-0001-6744-7841; TAEK-ANAEM
    Industrial radiography that uses both X-ray and gamma radiation are common widespread techniques of inspecting materials for hidden flaws. No matter what regulatory infrastructure is used, individual industrial radiographers are the most likely group of exposed workers to receive doses up to approaching relevant acceptable dose limits. In Turkey, the usage of ionizing radiation in industry is growing day by day in parallel with the technical developments in Turkey. This paper summarizes the Turkish experience in radiation protection (RP) education and training (E&T) in industrial radiography, regulatory requirements and the feedback obtained from various RP actions. The aim of this study is to provide a structural description of the course modules that are addressed to qualified experts, industrial radiographers and radiation protection officers (RPOs). The modules are mainly dedicated to radiation protection applications in industrial radiography. Assessment of this course also points out the benefits and inconveniences of pedagogical approaches in the Radiation Protection domain.
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    Education and training activities on personal dosimetry service in Turkey
    (Oxford Univ. Press, 2013) Zeyrek, C. Tuğrul; Akbıyık, Hayri; 0000-0001-6744-7841; TAEK-ANAEM
    A personal dosimetry service that evaluates the occupational doses for external and internal radiation of the radiation workers is one of the main components of radiation protection programme. The education and training (E&T) activities in this field are basic aspect of the optimization of all exposures to radiation. The E&T activities in the field of occupational radiation protection at the national and international level are mainly interested and implemented by Ankara Nuclear Research and Training Center (ANRTC) in Turkey. This study describes the Turkish experience in education and training of the staff of dosimetry services, postgraduate students and medical physics experts. The first individual monitoring training course realized in 2012 in Turkey. The aim of this study is to provide a structured description of postgraduate courses that addressed to qualified experts and medical physics experts, and the modules mainly dedicated to individual monitoring.
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    İyonize radyasyon uygulamaları için güvenlik ve korunmaya yönelik genel kavramlar
    (Süleyman Demirel Üniversitesi, 2013-01) Zeyrek, C. Tuğrul; 0000-0001-6744-7841; TAEK-ANAEM
    Bu çalışmada iyonlaştırıcı radyasyonla ilgili bilimsel yapıda ve uluslararası geçerliliği olan iyonlaştırıcı radyasyon uygulamaları için güvenlik ve korunmaya yönelik genel kavramlar sunularak, ülkemizdeki uygulamalarına yönelik bilgiler verilmiştir. Radyasyondan korunma sistemin ana hedefi, radyasyon görevlilerinin, halkın ve çevrenin radyasyonun zararlı etkilerine karşı korunmasıdır. Amacı ise radyasyonun deterministik etkilerini (cilt yanıkları, katarakt, ölüm gibi) önlemek ve stokastik (kanser, genetik etkiler) etkilerin meydana gelme olasılığını en aza indirebilmektir. Radyasyon ışınlamalarına yönelik olarak insan aktiviteleri ve uygulamaları için üç temel gereksinimi esas alan bir korunma sistemi tavsiye edilir. Bu gereksinimler ülke bazında sosyal ve ekonomik faktörleri de içerir. Uygulamanın Doğrulanması (justifikasyon-net fayda), Korunmanın Optimizasyonu (en az doz ile en iyi sonuç) ve Doz Sınırlarının uygulanması, radyasyondan korunma sisteminde yer alan üç temel prensiptir. Bu prensiplere göre radyasyonun zararlı etkilerini telafi edecek şekilde yeterli fayda sağlamayan radyasyona maruz kalmayı gerektiren hiçbir uygulamaya izin verilmemesi, bu kapsamda olacak olan uygulamalarda ise en az doz ile en iyi sonuca ulaşılması ve tıbbi tanı/tedavi haricinde bireylerin ışınlandığı tüm uygulamaların sonucunda alacakları dozların sınırlandırılması gerekmektedir.
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    Letter to the Editor
    (Oxford Univ. Press, 2012) Zeyrek, C. Tuğrul; Akbıyık, Hayri; 0000-0001-6744-7841; TAEK-ANAEM
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    Synthesis, characterization, and evaluation of (E)-methyl 2-((2-oxonaphthalen-1(2H)-ylidene)methylamino)acetate as a biological agent and an anion sensor
    (Elsevier, 2016) Zeyrek, C. Tuğrul; Boyacıoğlu, Bahadır; Yıldız, Mustafa; Ünver, Hüseyin; Yolal, Devrim; Demir, Neslihan; Elmalı, Ayhan; Aslan, Kadir; 0000-0001-6744-7841; TAEK-ANAEM
    An amino acid derived and bidentate Schiff base, (E)-methyl 2-((2-oxonaphthalen-1(2H)-ylidene)methylamino)acetate (ligand), was synthesized from the reaction of glycine-methyl ester hydrochloride with 2-hydroxy-1-naphthaldehyde. Characterization of the ligand was carried out using theoretical quantum-mechanical calculations and experimental spectroscopic methods. The molecular structure of the compound was confirmed using X-ray single-crystal data, NMR, FTIR and UV-Visible spectroscopy, which were in good agreement with the structure predicted by the theoretical calculations using density functional theory (DFT). Antimicrobial activity of the ligand was investigated for its minimum inhibitory concentration (MIC) to several bacteria and yeast cultures. UV-visible spectroscopy studies also shown that the ligand can bind calf thymus DNA (CT-DNA) electrostatic binding. In addition, DNA cleavage study showed that the ligand cleaved DNA without the need for external agents. Energetically most favorable docked structures were obtained from the rigid molecular docking of the compound with DNA. The compound binds at the active site of the DNA proteins by weak non-covalent interactions. The colorimetric response of the ligand in DMSO to the addition of equivalent amount of anions (F-, Br-, I-, CN-, SCN-, ClO4-, HSO4-, AcO-, H2PO4-, N3- and OH-) was investigated and the ligand was shown to be sensitive to CN- anion.
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    Synthesis, structure, spectroscopic (FT-IR) and density functional modelling studies of 1-[(4-etohxyphenylimino)methyl]napthalen-2-ol
    (Taylor & Francis, 2014) Zeyrek, C. Tuğrul; Dilek, Nefise; Yıldız, Mustafa; Ünver, Hüseyin; 0000-0001-6744-7841; TAEK-ANAEM
    Synthesis, crystallographic characterization, spectroscopic (FT-IR) and density functional modelling studies of the Schiff base 1-[(4-etohxyphenylimino)methyl]napthalen-2-ol (C19H17NO2) have been reported. The molecular structure obtained from X-ray single-crystal analysis of the investigated compound in the ground state has been compared using Hartree-Fock (HF) and density functional theory (DFT) with the 6-311++G(d,p) basis set. In addition to the optimized geometrical structures, atomic charges, molecular electrostatic potential (MEP), natural bond orbital (NBO), nonlinear optical (NLO) effects and thermodynamic properties of the compound have been investigated by using DFT. The experimental (FT-IR) and calculated vibrational frequencies (using DFT) of the title compound have been compared. The solvent effect was also investigated for obtained molecular energies and the atomic charge distributions of the compound. There exists a good correlation between experimental and theoretical data for enol-imine form of the compound. The predicted NLO properties of the compound which calculated by B3LYP method with 6-31G(d), 6-31+G(d,p), 6-31++G(d,p), 6-311+G(d) and 6-311++G(d,p) basis sets are greater than ones urea. The standard thermodynamic functions were obtained for the title compound with the temperature ranging from 200 to 450 K. Keywords: