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Toplam kayıt 89, listelenen: 21-30
The microwave-assisted synthesis and structural characterization of novel, dithia-bridged polymeric phthalocyanines containing a substituted thiophenylamine Schiff base
(0-Belirlenecek, 2009)
Novel polymeric metal-free and metallo(Cu(II), Co(II), Ni(II), Zn(II) and Pb(II))-phthalocyanine complexes were synthesized using microwave irradiation and the products were purified by several (crystallization and preparative ...
Synthesis and antimicrobial and antitumor activity of some new [1,2,4] triazole-5-one derivatives
(0-Belirlenecek, 2009)
4-[Arylidene-amino]-3-thiophen-2-ylmethyl-4,5-dihydro[1,2,4]triazole-5-one compounds (3a-g) with Schiff base character were obtained from the reaction of 4-amino-3-thiophen-2-ylmethyl-4,5-dihydro-1H-[1,2,4]triazole-5-one ...
The genus Halothamnus Jaub. & Spach (Chenopodiaceae) in Turkey [Türkiye'de Halothamnus Jaub. & Spach (Chenopodiaceae) cinsi]
(0-Belirlenecek, 2009)
The semidesert taxon Halothamnus (Chenopodiaceae), which is confirmed to supersede the later Aellenia, is represented in Turkey by H. glaucus subsp. glaucus and H. hierochunticus. The former was known to occur in Kars and ...
Geography education against nowadays world problems [Günümüz dünya sorunlari karşisinda coğrafya eği?timi]
(0-Belirlenecek, 2009)
Nowadays, the occurrences continuously change and development of the social life depend on natural and human factors have revived importance of qualitative thought in the geography education. This study is a compilation ...
Trace element content in marine algae species from the Black Sea, Turkey
(Springer, 2009)
Trace element content of marine algae species collected from the Black Sea coasts were determined by atomic absorption spectroscopy after microwave digestion. Trace element content in marine algae species were 1.70-17.1 ...
Variation of K X-ray fluorescence cross-sections of Cu, Y and Ba in Y Ba2Cu3O7-δ superconductor
(Elsevier, 2009)
K X-ray fluorescence cross-sections of Cu, Y and Ba elements were measured in CuO, Y 2O3, BaCO3 compounds and Y Ba2Cu3O7-? superconductor samples (nonreacted agent, calcined and sintered states). A superconductor sample ...
The Benthic exotic species of the Black Sea: Blood cockle (Anadara inaequivalvis, Bruguiere, 1789: Bivalve) and Rapa whelk (Rapana thomasiana, Crosse, 1861: Mollusc)
(2009)
The Black Sea is in transition from a freshwater to a marine environment and has a very low biodiversity. Therefore, it appears to be particularly vulnerable and easy target for many exotic species. Anthropogenic introductions ...
Phylogeny of neurergus crocatus and neurergus strauchii in Turkey based on morphological and molecular data
(2009)
We described the phylogeny of the salamandrid genus Neurergus in Turkey using statistical analyses on morphometric characters and a molecular analysis based on 12S and 16S rRNA genes. Two different species, Neurergus ...
Dynamic phase diagrams of a mixed spin-1 and spin-5/2 Ising system in an oscillating magnetic field
(2009)
We study the nonequilibrium aspects of the kinetics of a mixed spin-1 and spin-5/2 Ising system, including the biquadratic nearest-neighbor pair interaction (K) and the crystal-field interaction (D), under the presence of ...
Synthesis of some new 1,2,4-triazoles, their Mannich and Schiff bases and evaluation of their antimicrobial activities
(Elsevier, 2009)
4-Phenyl-5-pyridin-4-yl-4H-1,2,4-triazole-3-thiol (3) was obtained in basic media via the formation of 2-isonicotinoyl-N-phenylhydrazinecarbothioamide (2), and converted to some alkylated derivatives (4a,b) and Mannich ...