This paper deals with the weak subdifferentials. The properties of the weak subdifferentials are examined. It is showed that the weak subdifferential of a function having a global minimum is not empty.Key Words: Subdifferential, Weak subgradient, Weak subdifferential. 

An efficient synthesis of 3-aryl-2-cyclohexylamino-6,7-dihydro-1H-indole-4(5H)-ones using ferric perchlorate as the catalyst via four-component reaction between cyclohexylisocyanide, an aldehyde, a cyclic 1,3-dicarbonyl compound and ammonium acetate in acetonitrile is described.Key Words: cyclohexylisocyanide, cyclic 1,3-dicarbonyl compound, multi-component reaction;1H-Indole-4(5H)-ones. 

Influence functions give a measure of robustness of the statistics estimated from a sample against the sample data. In this study, first, the concept of influence functions is  xamined, and then the influence functions for mean and variance are given.…

The new mild chromium (VI) oxidizing agent, quinoxalinium bromochromate (QxBC), was prepared and characterized. This new compound is effective in the oxidation of alcohols and in the bromination of aromatic compounds.  Keywords: Quinoxalinium Bromochromate, Oxidation, Alcohols, Bromination

Let A be a Banach algebra with a bounded approximate identity. Let  and be respectively, the topological centers of the algebras A** and (AA*)* with respect to the second Arens multiplication. In this paper, we show that is isometrically isomorphic…

In the field of mineral processing, it is important to determine the size of a particle. A method of defining an average diameter for a collection of particles is presented. The theoretical basis developed for the purpose is verified by…

In this study, morphology, breeding, feeding and hibernation behaviours and some ecological features of eight Erinaceus concolor specimens collected from the KÜtahya and Konya provinces were recorded during field and laboratory studies between 2000 and 2004. Food preferances of hedgehogs…

The characteristics of glycoconjugates in the mucous cells of the sea bass (Dicentrarchus labrax L. 1758) gill were investigated by histochemical staining procedures. Histochemical results showed that mucous cells in the primary filament (primary lamellae) epithelium contain acidic, neutral and…

Phenols were nitrated regioselectivity with NH4NO3 in the presence of KHSO4 as a catalyst in high yields. Key Words: Nitration, Phenols, NH4NO3, KHSO4.

The chorology of Turkish moss species of Andreaeaceae, Archidiaceae, Aulacomniaceae, Amblystegiaceae and Anomodontaceae families is given in dotted squares according to Henderson’s [1] system in the map of Turkey.   Key words: Flora, Musci, Turkey.