Başlık için Fen Fakültesi listeleme
Toplam kayıt 1146, listelenen: 798-817
-
Observation of negative photoconductivity in (ZnO)(x)(CdO)(1-x) films
(Pergamon-Elsevier Science Ltd, 2009)In this study, (ZnO)(x)(CdO)(1-x) films were prepared by ultrasonic spray pyrolysis (USP) technique at a substrate temperature of 400 degrees C. X-ray diffraction patterns of the films indicate that the (ZnO)(x)(CdO)(1-x) ... -
Occurrence of Microplastics in Most Consumed Fruits and Vegetables from Turkey and Public Risk Assessment for Consumers
(MDPI, 2023)Microplastics are transferred to humans through the food chain by consuming food con- taminated with microplastics. However, the knowledge about the risks of dietary exposure for humans to these particles is very limited. ... -
Occurrence of resistance to antibiotics, metals, and plasmids in clinical strains of Staphylococcus spp
(Elsevier Science Inc, 2003)Background. Presence of staphylococci resistant to antibiotics is of concern, as is the possible spread of resistance determinants among Staphylococcus species. During the past several years, a series of staphylococcal ... -
On a LOD and Crank-Nicolson methods for the two dimensional diffusion equation
(2002)Bu çalışmada bir boyutlu diffuzyon denklemi için Açık yöntem ve Crank Nicolson yöntemini temel alan sonlu fark teknikleri, iki boyutlu zamana bağımlı diffuzyon denklemini çözmek için kullanıldı, yerel bir boyut(LOD) yöntemi ... -
ON ALMOST CONTRA e*theta-CONTINUOUS FUNCTIONS
(Yarmouk Univ, Deanship Research & Graduate Studies, 2018)The aim of this paper is to introduce and investigate some of fundamental properties of almost contra e*theta-continuous functions via e*theta-closed sets which are de fined by Farhan and Yang [15]. Also, we obtain several ... -
On C-m-Supermagicness of Book-Snake Graphs
(UNIV PUNJAB, DEPT MATHEMATICS, 2021)Graph labelling or valuation is a function that maps graph elements (vertices or edges) to numbers, usually positive integers [7]. In this work, we analyze the supermagicness of book-snake graphs. At first, we show that ... -
ON CONTRA we∗-CONTINUOUS FUNCTIONS
(Poincare Publishers, 2021)The main goal of this paper is to introduce and study a new type of contra continuity called contra we∗-continuity via we∗-open sets defined by us. We obtain several characterizations and some fundamental properties of ... -
On Generalized omega e*-closed Sets
(NEW YORK BUSINESS GLOBAL LLC, 2022)The aim of this paper is to introduce and study a new type of generalized closed sets, called generalized omega e*-closed (briefly, g omega e*-closed) sets, via omega e*-closure operator. We examine the fundamental properties ... -
On Rings whose Quasi Projective Modules Are Projective or Semisimple
(RGN PUBL, 2021)For two modules M and N, P-M(N) stands for the largest submodule of N relative to which M is projective. For any module M, P-M(N) defines a left exact preradical. It is given some properties of P-M(N). We express P-M(N) ... -
ON THE ADAPTIVE NADARAYA-WATSON KERNEL REGRESSION ESTIMATORS
(Hacettepe Univ, Fac Sci, 2010)Nonparametric kernel estimators are widely used in many research areas of statistics. An important nonparametric kernel estimator of a regression function is the Nadaraya-Watson kernel regression estimator which is often ... -
On the anti-automorphism of mod-p Steenrod algebra in the language of the structure of combs
(2004)Parçalanmış ve demetlenmiş taraklar metodu mod-2 Steenrod cebiri için J.H.Silverman tarafından verilmiştir [1]. Bu metod, verilen bir P(T) Milnor elemanının diğer P(r) ve P(s) gibi iki Milnor elemanının anti-otomorfizmalarının ... -
On the exact and numerical solutions to a nonlinear model arising in mathematical biology
(E D P Sciences, 2018)This study acquires the exact and numerical approximations of a reaction-convection-diffusion equation arising in mathematical biology namely: Murry equation through its analytical solutions obtained by using a mathematical ... -
ON THE PERFORMANCE OF THE SEMIPARAMETRIC BINARY RESPONSE MODEL WHEN THE TRUE MODEL IS PARAMETRIC LOGISTIC
(Hacettepe Univ, Fac Sci, 2010)In this article, a simulation study is performed to reveal the deviations of the semiparametric binary response model from its parametric counterpart, based on various scenarios including different sample sizes, different ... -
On the relations between fuzzy topologies and $alpha$ cut topologies
(2004)Bu çalışmada fuzzy kümeler ve bunların $alpha$-kesitleri arasında bazı bağıntılar üretilmiş ve bu bağıntıları kullanarak, fuzzy topolojik uzaylar ve ?-kesit topolojileri arasında bazı ilişkiler ortaya koyulmuştur. -
On the Turkish Clerodendrum L. (Verbenaceae)
(2009)Clerodendrum, Verbenaceae familyasına ait büyük bir cinstir. Bu cins, Asya’ nın ve Orta Amerika’ nın tropik ve subtropik bölgelerinde geniş yayılış gösterir. Yaklaşık 400 kadar türe sahiptir. Kültüvarlarla birlikte bu sayı ... -
ON Ψδ-SETS AND Ψδ-FUNCTIONS DEFINED BY IDEALS
(Poincare Publishers, 2021)In this paper, we introduce two operator associate with Ψ and δ-int operators in ideal topological spaces and investigate their properties. We will use the composite of these operators to offer a finer topology on X than ... -
One-pot synthesis of a new 2-substituted 1,2,3-triazole 1-oxide derivative from dipyridyl ketone and isonitrosoacetophenone hydrazone: Nickel(II) complex, DNA binding and cleavage properties
(Academic Press Inc Elsevier Science, 2017)An efficient and simple one-pot synthesis of a new 1,2,3-triazole-1-oxide via reaction between isonitrosoacetophenone hydrazone and dipyridyl ketone in the EtOH/AcOH at room temperature has been developed smoothly in high ... -
Onnia tomentosa (Fr.) P. Karst, a new genus record for Turkey
(2009)Konifer kök özlerinde önemli bir parazit olan ve beyaz çürüklüğe neden olan Onnia tomentosa (Fr.) P. Karst. Türkiye’den ilk kez cins seviyesinde kayıt edilmiştir. Bu mantarın tipik özelliği merkezi bir sap, subulat ve düz ... -
Onosma ambigens: Phytochemical composition, antioxidant and enzyme inhibitory activity
(Elsevier, 2020)Due to their medical importance, the number of studies on the enlightenment of the biological activities of Onosma species has been increasing over the years. In this study, besides the phytochemical composition of Onosma ... -
Onosma pulchra: Phytochemical composition, antioxidant, skin-whitening and anti-diabetic activity
(Elsevier, 2020)Researchers have discovered in recent years that some Onosma species have interesting biological/pharmacological activities. This study was conducted to investigate the antioxidant, tyrosinase and alpha-amylase inhibitor ...
