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Toplam kayıt 565, listelenen: 221-230
The isolation of secondary metabolites from Rheum ribes L. and the synthesis of new semi-synthetic anthraquinones: Isolation, synthesis and biological activity
(Elsevier Sci Ltd, 2021)
Rheum ribes L. (Rhubarb) is one of the most important edible medicinal plants in the Eastern Anatolia region and is called Iskin by local people. Resveratrol and 6-O-methylalaternin were isolated from the Rhubarb for the ...
The effect of basic robotic coding in-service training on teachers' acceptance of technology, self-development, and computational thinking skills in technology use
(Springer Heidelberg, 2021)
The purpose of this study was to investigate the technology acceptance, self-development, and computational thinking skills of teachers who participated in basic robotic coding in-service training from different branches ...
2-Hydroxyanthraquinone substituted cyclotriphosphazenes: Synthesis and cytotoxic activities in cancer cell lines
(Elsevier Science Sa, 2021)
Scientists continue to synthesize substances that have cytotoxic effects and examine their properties to overcome cancer for a long time. This study is aimed at preparing novel cyclotriphosphazene derivatives and examining ...
Best proximity point theorems for cyclic p-contractions with some consequences and applications
(Vilnius Univ, Inst Mathematics & Informatics, 2021)
In this paper, we introduce the concept of cyclic p-contraction pair for single-valued mappings. Then we present some best proximity point results for such mappings defined on proximally complete pair of subsets of a metric ...
Modeling mathematics achievement with deep learning methods
(Yildiz Technical Univ, 2021)
Deep learning methods are the subfield of the machine learning models that have spread rapidly in the field of engineering in the last decade. But, these methods are a fairly new in educational literature. The aim of this ...
Comparison of two pandemics: H1N1 and SARS-CoV-2
(Assoc Medica Brasileira, 2021)
OBJECTIVE: We aimed to compare the clinical, epidemiological, and prognostic features of the H1N1 pandemic in 2009 and the severe acute respiratory syndrome coronavirus 2 pandemic in 2020. METHODS: This retrospective study ...
A novel classification framework using multiple bandwidth method with optimized CNN for brain-computer interfaces with EEG-fNIRS signals
(Springer London Ltd, 2021)
The most effective way to communicate between the brain and electronic devices in the outside world is the brain-computer interface (BCI) systems. BCI systems use signals of being through neural activity in the brain to ...
Synthesis, crystal structure, antibacterial activity and theoretical studies on a novel Zn(II) complex based on 2,4,6-tris(2-pyridyl)-1,3,5-triazine ligand
(Elsevier, 2021)
It is known that 2,4,6-tri(2-pyridyl)-1,3,5-triazine (tptz) also belongs to noticeable building blocks in both organic and inorganic supramolecular chemistry. We have prepared new Zn(II) complex of 2,4,6-tri(2-pyridyl)-1 ...
NEW FRACTIONAL ORDER DISCRETE GRUSS TYPE INEQUALITY
(Walter De Gruyter Gmbh, 2021)
The aim of this study is to establish new discrete Gruss type inequality using fractional order h-sum and h-difference operators that generalize the fractional sum and difference operators.
Pressure effects on electronic, elastic, and vibration properties of metallic antiperovskite PbNCa3 by ab initio calculations
(Springer, 2021)
Ab initio computations are performed to study the structural, elastic, electronic, and vibrational characteristics of the cubic antiperovskite compound PbNCa3 under pressure up to 50 GPa. By using the generalized gradient ...