نتایج جستجو برای: cr equivalent

تعداد نتایج: 183492  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده ادبیات و علوم انسانی 1393

the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...

2006
Dmitri Zaitsev DMITRI ZAITSEV

We show that various notions of local homogeneity for CR-manifolds are equivalent. In particular, if germs at any two points of a CR-manifold are CR-equivalent, there exists a transitive local Lie group action by CR-automorphisms near every point.

Journal: :Annales de l'Institut Fourier 2022

We study a CR analogue of the Ahlfors derivative for conformal immersions Stowe that generalizes Schwarzian studied earlier by second-named author. This notion possesses several important properties similar to those counterpart and provides new invariant spherically equivalent maps from strictly pseudoconvex manifolds into sphere. The is computable distinguishes many well-known sphere maps. In ...

Journal: :iranian journal of science and technology (sciences) 2014
k. k. hammud

the reaction of an equivalent of 2- mercaptoethyl ammonium chloride with an equivalent of 2,6-diformyl -4- methyl phenol produced monoamine which was reacted with half equivalent of 1,2-diamine ethane to produce ethylene-bis-6-(2-mercapto-ethyl-imine)-methyl -4- methyl phenol [h4l]. the ligand was reacted with metal ions[cr(iii), mn(ii), fe(ii), co(ii), ni(ii), cu(ii), zn(ii), cd(ii), and hg(ii...

2004
Grzegorz Bancerek

The articles [12], [8], [13], [11], [14], [5], [4], [9], [16], [1], [2], [7], and [6] provide the notation and terminology for this paper. Let X be a set and let Y be a subset of 2X . Then ⋃ Y is a subset of X . In this article we present several logical schemes. The scheme DenestFraenkel deals with a non empty set A , a non empty set B, a unary functor F yielding a set, a unary functor G yield...

Journal: :Mutation research 2002
Diane M Stearns Stacey M Silveira Kristina K Wolf April M Luke

Chromium trispicolinate (CrPic) is a popular dietary supplement that is not regulated by the Food and Drug Administration. We are using this compound as a bio-available model to explore the role of Cr(III) in Cr(VI)-induced cancers. The ability of CrPic to cause mutations at the hypoxanthine (guanine) phosphoribosyltransferase (hprt) locus of CHO AA8 cells has been measured after a 48 h exposur...

2008
Stuart Armstrong

This paper demostrates a method for analysing almost CR geometries (H, J), by uniquely defining a partially integrable structure (H,K) from the same data. Thus two almost CR geometries (H,J) and (H ′, J ′) are equivalent if and and only if they generate isomorphic induced partially integrable CR geometries (H,K) and (H ′, K′), and the set of CR morphisms between these spaces contains an element...

2015
Yu Ohkura Kazunari Sasaki Masamichi Matsuda Masaji Hashimoto Goro Watanabe

BACKGROUND We investigated the patterns and predictors of recurrence and survival in cryptogenic non-B, non-C, non-alcoholic hepatocellular carcinoma (CR-HCC). We compared the findings with those hepatitis virus B (B) and hepatitis virus C (C)-HCC. CR-HCC does not include HCC developed on NASH. METHODS From 1990 to 2011, of 676 patients who underwent primary curative liver resection as initia...

Journal: :International Journal Of Radiation Applications And Instrumentation. Part D, Nuclear Tracks And Radiation Measurements 1992
V E Dudkin E E Kovalev Y V Potapov E V Benton A L Frank E R Benton J W Watts T A Parnell E Schopper B Baican

Results of the experiments on board Cosmos-2044 (Biosatellite 9) are presented. Various nuclear track detectors (NTD) (dielectric, AgCl-based, nuclear emulsions) were used to obtain the LET spectra inside and outside the satellite. The spectra from the different NTDs have proved to be in general agreement. The results of LET spectra calculations using two different models are also presented....

2008
Yifei Pan YIFEI PAN

In this paper, we give a characterization of the finite multiplicity of a CR mapping between real analytic hypersurfaces. The finite multiplicity of a CR mapping was defined algebraically by Baouendi and Rothschild in [BR1] (see the definition below). We will prove that under certain conditions on hypersurfaces the finite multiplicity of a CR mapping is equivalent to that the preimage of the ma...

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