Başlık için Fen Edebiyat Fakültesi listeleme

Variation in size and shape: sexual dimorphism in the southern banded newt, Ommatotriton vittatus (Caudata: Salamandridae)

Altunışık, Abdullah (Springer, 2023)

One of the main factors creating intraspecific morphological variation, sexual dimorphism (SD) could be expressed as adult male and female animals having different body sizes or shapes. Female-biased sexual dimorphism has ...

Variation of K X-ray fluorescence cross-sections of Cu, Y and Ba in Y Ba2Cu3O7-δ superconductor

Baltaş, Hasan; Çevik, Uğur (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 ...

Variation of response patterns associated with an avirulent plant symbiont directed defense gene expressions in maize exposed to toxic elements

Pehlivan, Necla (Istanbul University Press, 2021)

Objective: Microbe-assisted plant heavy metal (HM) tolerance is gaining momentum over a conventional breeding or transgenic approach being used to generate tolerant varieties capable of completing their life cycle in the ...

Variations in age structure and growth in congeners Lacerta viridis and Lacerta media

Altunışık, Abdullah; Yıldız, Mehmet Zülfü; Akman, Bahadır; Iğcı, Naşit; Karış, Mert; Somer, Mehtap (Wiley, 2022)

Determining the age of any species allows it to be analyzed from the ontogenetic, demographic, and ecological perspectives. In the present study, we tested the hypothesis that the age structure of congener species (Lacerta ...

Versatile synthesis of rac- and meso-hydroxymethyl cyclohexenoids containing phenyl groups: alpha-/beta-glucosidase activities, inhibition kinetics and molecular docking studies

Sevmezler, Sedat; Çöl, Sümeyye; Emirik, Mustafa; Ceylan, Davut; Baran, Arif (Wiley, 2022)

The effective strategy has been developed to synthesize a series of monophenyl and diphenyl carbasugar analogues, from the cycloadduct reaction of furan and maleic anhydride, containing halogen groups based on the conduritol ...

The vibration and stability of non-homogeneous orthotropic conical shells with clamped edges subjected to uniform external pressures

Sofiyev, A.H.; Kuruoglu, N.; Halilov, H.M. (Elsevier, 2010)

In this paper an analytical procedure is given to study the free vibration and stability characteristics of homogeneous and non-homogeneous orthotropic truncated and complete conical shells with clamped edges under uniform ...

Viscous dissipation effects on entropy generation in heated vertical parallel-plate channels for mixed convection

Akbulut, Uğur; Ovalı, Rasim Volga; Küçük, Haydar (Inderscience Enterprises Ltd, 2017)

In this study, effect of viscous dissipation on entropy generation for fully developed incompressible laminar flow mixed convection in vertical parallel-plate channels with asymmetric and symmetric uniform heat fluxes was ...

The viscous flux-flow effect on the pinning induced magnetostriction of type-II superconductors

Düzgün, İbrahim; İnanır, Fedai; Altunbaş, Mustafa; Çelebi, Selahattin (2007)

We have investigated the magnetostriction of type II superconductors under the viscous flux-flow. The critical state approach was employed to obtain the magnetostriction loops versus applied field. The flux profile equations ...

Volatile and phenolic contents, antimicrobial and tyrosinase activities of two endemic species scorzonera pisidica and scorzonera sandrasica L. Grown in Turkey

Yaylı, Nurettin; Öksüz, Enes; Korkmaz, Büşra; Erik, İshak; Fandaklı, Seda; Faiz, Özlem (ACG Publications, 2022)

Phytochemical analysis of two endemic Scorzonera pisidica Hub.-Mor. and Scorzonera sandrasica Hartvig & Strid species have not been mentioned before. In this work, volatile organic compounds, phenolic contents, antimicrobial, ...

Volatile constituents and antimicrobial activities from flower and fruit of arbutus unedo L.

Kahriman, Nuran; Albay, Canan Güleç; Doğan, Neşe; Usta, Asu; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2010)

Essential oils isolated by hydrodistillation from flower and fruit of Arbutus unedo growing in Turkey were analyzed by GC and GC/MS. Forty-nine compounds, representing around 95% of the total oils were identified. ...

Volatile constituents and antimicrobial activity of the essential oils from Cladonia rangiformis Hoffm. and Cladonia furcata (Huds.) Schrad

Kahriman, Nuran; Tosun, Gonca; Yaylı, Büşra; Yazıcı, Kenan; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (2012)

This study was designed to examine the chemical compositions and antimicrobial activities of the essential oils from Cladonia rangiformis Hoffm. and Cladonia furcata (Huds.) Schrad. The essential oils were isolated by ...

Volatile constituents and antimicrobial activity of vinca major l. Subsp. hirsuta (boiss) stearn grown in turkey

Erik, İshak; Kılıç, Gözde; Korkmaz, Büşra; Fandaklı, Seda; Karaoğlu, Şengül Alpay; Yaylı, Nurettin (Marmara University, 2021)

In this study, volatile compounds (VCs) in the essential oil (EO), SPME and SPME of n-hexane extract of Vinca major subsp. hirsuta (Boiss.) Stearn were analyzed by GC-FID/MS instrument. A total of 32, 38, and 26 compounds ...

Volatiles and antimicrobial activity of the essential oils of the mosses pseudoscleropodium purum, eurhynchium striatum, and urhynchium angustirete grown in Turkey

Tosun, Gonca; Yaylı, Büşra; Özdemir, Turan; Batan, Nevzat; Bozdeveci, Arif; Yaylı, Nurettin (ACG Publications, 2015)

The chemical composition of the essential oils from all parts of Pseudoscleropodium purum, Eurhynchium striatum and Eurhynchium angustirete were analysed by GC-FID-MS. Sixty-five, thirty-four and seven compounds, accounting ...

Voltammetric sensor based on poly(3-methylthiophene) synthesized in dichloromethane for tyramine determination in moldy cheese

Küçük, Ali; Torul, Oktay (Elsevier Science Sa, 2018)

Black adherent P3MT film was potentiodynamically deposited on Pt electrode in dichloromethane solvent containing 0.5 M 3-methylthiophene and 0.1 M tetrabutylammonium perchlorate. P3MT-coated platinum electrode was used for ...