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In this article, we introduce a new way of generating copulas with the directional dependence property based on the logistic regression. The studied class of copulas leads to nonsymmetrical copula structures, therefore allowing for the development of various directional dependence…

Residual types in time series has not been investigated throughly in literature. This study aims to provide practical applications of residual types. In this study, firstly, basic information about different types of residuals was given and some features of the…

In this paper a general fixed point theorem for mappings satisfying an phi - implicit relation is proved, which generalize the results from [3] and [13].  

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In this study the acute toxicity of zinc chloride (ZnCl2) to Daphnia magna Straus was investigated in a static bioassay. After 24, 48, 72 and 96 h the mobility of daphnids were examined and immobile ones were counted. The 24,…

As a result of lichenological study in Turkey, in the provinces of Afyonkarahisar and Kırıkkale, we report 120 taxa of lichen. 78 taxa are new to the province of Afyonkarahisar and 22 taxa are new to the provinces of Kırıkkale. Key…

In this study, chlorpyrifos, catechin, quercetin and catechin- or quercetin+chlorpyrifos were given to Wistar rats for 4 weeks. Chlorpyrifos increased the levels of malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT); decreased glutathione peroxidase (GPx) and glutathione–S-transferase (GST) activities in…

 In this study, the ultrastructure and histology of digestive tract of Sphex flavipennis was examined by light and electron microscopy. The digestive tract divided into foregut, midgut and hindgut. There are longitudinal and circular muscle in the haemocoel side and…

The synthesis, spectroscopic and biological activity studies of Ni(II), Cu(II) and Co(II) complexes of Schiff base ligands derived from 5-aminouracil, 2-hydroxy-1-naphtaldehyde, 2,4-dihydroxybenzaldehyde and salicylaldehyde are reported. In all cases, the complexes appear to be monomeric. The ligands coordinate in bidentate…