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مقروئية كتاب الرياضيات للصف الخامس الأساسي في الأردن
(
Qatar University
, 2004 , Article)
هدفت هذه الدراسة إلى البحث في مقروئية كتاب الرياضيات للصف الخامس الأساسي في الأردن وذلك بسبب أهمية مستوى صعوبة اللغة في الكتب الدراسية. وقد استخدم الباحثان اختبار الكلوز بمستويات ثلاثة كمقياس لتحديد مستوى المقروئية، حيث ...
العمليات العقلية في التفكير البصري لدى طلبة المرحلة الأساسية العليا
(
Qatar University
, 2004 , Article)
هدفت هذه الدراسة إلى تعرف أداء طلبة الصفوف من السابع إلى التاسع في العمليات العقلية المتضمنة في التفكير البصري، وإلى تعرف تأثير كل من عوامل الجنس ومستوى الصف على أدائهم في كل عملية من هذه العمليات. كما هدفت إلى تعرف الفروق ...
On the Classical Multicolor Ramsey Number R(3,3,3)
(
Qatar University
, 2004 , Article)
In this paper, we are interested in the problem of evaluation of the classical multicolor Ramsey number i?(3,3,3). We first convert it successfully into a system of clauses of 3-literals each, i.e., a 3-SAT instance. We ...
Performance Analysis of a Fileserver in an ATM Network
(
Qatar University
, 2004 , Article)
ATM continues to gain acceptance as a unifying communications technology for traffic of both digital and analog origins. The main characteristic of an ATM network is its discrete time (slotted) operation and fixed-length ...
Lumping Processes of Periodic ARMA Processes
(
Qatar University
, 2004 , Article)
In this article various lumping processes are defined for periodic ARMA (PARMA) processes, namely, the forward, the backward and the cyclic lumping processes. The inter-relations between the parameters of these lumping ...
Strain Broadening of E.P.R. Linewidths in Fe/Mgo Single Crystals and Powders
(
Qatar University
, 2004 , Article)
The E.P.R. linewidth of the M= + 1/2 <-» -1/2 transition of Fe3+ spectrum of Fe/MgO single crystals and powders have been measured at 9 GHz before and after annealing. The nominal iron concentrations ranged from 310 to ...
The Optical properties of Cadmium Stannate (Cd2SnO4) Thin Films Prepared by Chemical Spry Pyrolysis Technique
(
Qatar University
, 2004 , Article)
Thin films of cadmium stannate were prepared using thermal chemical spray pyrols: Cadmium stannate' solution (0.2M) was prepared by dissolution of CdCl25H2O in C2H5OH tion of SnCl23H2O in CH3COOH at molar 2:1, respectively. ...
Some Inferential Problems in Finite Population Sampling
(
Qatar University
, 2004 , Article)
We review some results in problems of estimating a finite population total (mean) through a sample sur¬vey. Section 2 considers inference under a fixed population model and Section 3 addresses the same prob¬lem when the ...
On Symboloic Reasoning and Direct Inference Principle
(
Qatar University
, 2004 , Article)
This paper discusses an approach using the M-valued symbolic logic with syllogistic reasoning and direct inference principle (reasoning from statistical information to conclusions about individuals), to manipu¬late statistical ...
Z1, center orientations and adsorption of atomic halogens at the (001) surfaces of Alkaili Chloride Crystals: DFT Calculations.
(
Qatar University
, 2004 , Article)
An attempt has been made to examine the relative stabilities of Z, center orientations at the surfaces of
Be2+, Mg2+ and Ca2+ doped LiCl, NaCl and KC1 ionic crystals as well as the effects of Z, center on the
adsorption ...