Başlık için Fen Fakültesi listeleme
Toplam kayıt 1146, listelenen: 805-824
-
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 ... -
Operational Matrix by Hermite Polynomials for Solving Nonlinear Riccati Differential Equations
(LEBANESE UNIV, 2021)This paper studies the potential to ensure a numerical solution of nonlinear Riccati differential equations with an effective method, namely operational matrix which is derived by Hermite polynomials with the sense of ... -
Optical properties of selenium sulfide thin film produced via chemical dropping method
(Springer, 2018)This paper describes the production of selenium sulfide (SeS2) crystalline thin film on commercial glass substrates, via chemical bath deposition. Transmittance, absorption, dielectric constant and refractive index of the ... -
Optical refracting properties, birefringence and order parameter in mixtures of liquid crystals: Direct smectic A - Isotropic and reverse isotropic - Smectic A phase transitions
(Elsevier, 2022)Due to the physical anisotropic and self-assembling nature, liquid crystalline materials holdvery important place in theoretical, experimental and applied physics. Besides, liquid crystals are important materials as working ... -
Optimum shrinkage parameter selection for ridge type estimator of Tobit model
(Taylor and Francis Ltd., 2020)This paper presents different ridge type estimators based on maximum likelihood ((Formula presented.)) for parameters of a Tobit model. In this context, an algorithm is introduced to get the estimators based on (Formula ... -
Organotin (IV) complexes derived from Schiff base 1,3-bis[(1E)-1-(2-hydroxyphenyl)ethylidene] thiourea: synthesis, spectral investigation and biological study to molecular docking
(Springer, 2021)A novel Schiff base-derived organotin (IV) complexes have been synthesized by reacting 1, 3-bis [(1E)-1-(2-hydroxyphenyl) ethylidene]thiourea (which in turn obtained by condensing thiourea with ortho-hydroxyacetophenone) ... -
Origins of Reverse Bias Currents in a Typical BPW34 Photodiode
(Scientific Technical Research Council Turkey-Tubitak, 2005)Measurements of the dark reverse current in a typical BPW34 silicon photodiode have been made in the temperature range 100-300 K at various reverse bias voltages ranging from 0 to 60 V. Various transport models have been ... -
Oxidase mimicking Co/2Fe MOF included biosensor for sialic acid detection
(Elsevier B.V., 2022)A facile amperometric biosensor that included oxidase mimicking Co/2Fe metal-organic framework (MOF) for sialic acid (SA) detection was prepared. Amperometric SA biosensor was constructed on a gold screen-printed electrode ...
