Ara
Toplam kayıt 1266, listelenen: 381-390
Studies on the Alydidae, Rhopalidae and Stenocephalidae (Heteroptera: Coreoidea) species of the Kelkit Valley of Turkey
(ENTOMOLOGICAL SOC TURKEY, EGE UNIV, 2009)
In this study, 677 adult specimens from Alydidae, Rhopalidae and Stenocephalidae (Heteroptera: Coreoidea), which are from 45 different localities in Kelkit Valley were collected between 2005-2007. By identifying of the ...
Antifungal and herbicidal properties of essential oils and n-hexane extracts of Achillea gypsicola Hub-Mor. and Achillea biebersteinii Afan. (Asteraceae)
(ELSEVIER SCIENCE BV, 2009)
The chemical composition of essential oils isolated by hydrodistillation from the aerial parts of Achillea gypsicola Hub-Mor., Achillea biebersteinii Afan. and n-hexane extracts obtained from the flowers of A. gypsicola ...
The role of RpoS, H-NS and AcP on the pH-dependent OmpC and OmpF porin expressions of Escherichia coli at different pH
(ACADEMIC JOURNALS, 2009)
It is generally accepted that OmpC and OmpF porin proteins have important roles to play in the survival of Escherichia coli under different environmental conditions. However, the influence of different environmental ...
Irregular Boundary Value Problems with Discontinuous Coefficients and the Eigenvalue Parameter
(SPRINGER BASEL AG, 2009)
In this study, a Birkhoff-irregular boundary value problem for linear ordinary differential equations of the second order with discontinuous coefficients and the spectral parameter has been considered. Therefore, at the ...
Analytical evaluation for two-center nuclear attraction integrals over slater type orbitals by using Fourier transform method
(SPRINGER, 2009)
In this study, we shall suggest analytical expressions for two-center nuclear attraction integrals over STO's with a one-center charge distribution by using Fourier transform method. The derivation is based on partial-fraction ...
The measurements of radon concentrations in drinking water and the Yesilirmak River water in the area of Amasya in Turkey
(OXFORD UNIV PRESS, 2009)
This paper presents the results of radon ((222)Rn) concentrations in drinking water and river water. In this respect, water samples were collected in the city of Amasya, inner parts of the Median Black sea region in Turkey ...
Active learning strategies in physics teaching
(SILA SCIENCE, 2009)
The purpose of this study was to determine physics teachers' opinions about student-centered activities applicable in physics teaching and learning in context. A case study approach was used in this research. First, ...
On Mannheim partner curves in E-3
(ACADEMIC JOURNALS, 2009)
The aim of this paper is to study the Mannheim partner curves in Euclidean space E-3. We obtain the relationships between the curvatures and the torsions of the Mannheim partner curves with respect to each other.
Effects of Preoperative Conventional and Hyperfractionated Radiotherapy on the Healing of Rat Colonic Anastomoses
(KARGER, 2009)
Background: One problem associated with end to end anastomoses after preoperative radiotherapy is leakage. The strength of the anastomoses is very important. Fractionation schedules are widely under investigation to achieve ...
Evaluation of the NDVI in plant community composition mapping: a case study of Tersakan Valley, Amasya County, Turkey
(TAYLOR & FRANCIS LTD, 2009)
Mapping the composition of plant community types requires reliable spatial data obtained from field surveys and satellite-derived indices. The normalized difference vegetation index (NDVI) is the simplest and most frequently ...