third of the mining is done inPatagonia, whichmakesup the southern third of the country. Scattered in theregion are large epithermal gold and silver deposits aswell as polymetallic lead-zinc deposits. The lastsettingis the magnificent Andes Mountains region, whichhas deposits of porphyry copper and[r]
Novel 2D self-assembled arrays of SiOxnanowire bundlesShi-biao Xianga,⁎, Xu XiangbaDepartment of Technical Physics, Zhengzhou Institute of Light Industry, No.5 Dongfeng Road, Zhengzhou 450002, PR ChinabState Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology,[r]
DIAMETRICALLY CONTRACTIVE MAPS AND FIXED POINTSMARCO BARONTI, EMANUELE CASINI, AND PIER LUIGI PAPINIReceived 13 January 2006; Revised 3 May 2006; Accepted 3 May 2006Contractive maps have nice properties concerning fixed points; a big amount of literaturehas been devoted to fixed p[r]
are trying to find out what happens if s>1. We show that it does not only become truebut obtains better estimates.The described result is stated and proved in Section 3. The method invoked is differentfrom that by Cazenave in [2]; it relies on some Littlewood-Paley theor y and Besov spaces’theo[r]
EXPONENTIAL STABILITY IN A SCALAR FUNCTIONALDIFFERENTIAL EQUATIONEDUARDO LIZ AND MIH´ALY PITUKReceived 21 March 2006; Revised 16 August 2006; Accepted 21 September 2006We establish a criterion for the global exponential stability of the zero solution ofthe scalar retarded functi[r]
EXISTENCE OF POSITIVE SOLUTION FORSECOND-ORDER IMPULSIVE BOUNDARY VALUEPROBLEMS ON INFINITY INTERVALSJIANLI LI AND JIANHUA SHENReceived 8 January 2006; Revised 2 September 2006; Accepted 4 September 2006We deal with the existence of positive solutions to impulsive second-order d[r]
xk, (1.1)if the spectrum Σ(Df(0)) is contained in the open unit circle of the complex plane. Sim-ilar results also hold for continuous dynamical systems (replace the open unit disc bythe negative half-plane) or nonautonomous equations (replace the assumption on thespectrum by uniform asymptotic sta[r]
, t ∈ N,2≤ t ≤ T,x(0)= x(T +2)= 0,Δ2x(0) = Δ2x(T) = 0(1.1)by using the method of upper and lower solutions, and then Sun [15] obtained the exis-tence of one positive solution for the following four th-order BVP:Δ4x(t − 2) = a(t) fx(t), t ∈ [2,T],x(0)= x(T +2)= 0,Δ2x(0) = Δ2x(T) = 0(1.2)Hindawi Pub[r]
cho sự nghiệp xây dựng và bảo vệ tổ quốc.Với những kinh nghiệm cơ bản trên chúng tơi tiến hành áp dụng đồng loạt ở các khối lớptrong nhà trường, kết quả mang lại có khả quan cả về chất lượng học lực và hạnh kiểm.Vềhạnh kiểm học kì I khơng có HS xếp loại hạnh kiểm yếu, HS xếp loại hạnh kiểm Tb rấthạn[r]
BỘ GIÁO DỤC VÀ ĐÀO TẠOĐỀ THI CHÍNH THỨCKÌ THI CHỌN HỌC SINH GIỎI QUỐC GIALỚP 12 THPT NĂM 2006Môn: LỊCH SỬThời gian: 180 phút (không kể thời gian giao đề)Ngày thi: 23/02/2006Câu 1 (2 đ)Trình bày vai trò của Nguyễn Ai Quốc tại Hội nghị thành lập Đảng Cộng sản Việt Nam đầu năm 1930.Câu 2[r]
Chuẩn mực kế toán Thuế thu nhập doanh nghiệp (VAS17) Thực thế, luôn luôn tồn tại sự khác biệt giữa các Chính sách Thuế với các quy định trong các Chuẩn mực và Chế độ kế toán trong bất kỳ nền kinh tế nào trên thế giới. Các doanh nghiệp hoạt động trong nền kinh tế phải hiểu và có cách ứng xử phù hợp đ[r]
EXISTENCE RESULTS FOR SEMILINEAR PERTURBEDFUNCTIONAL DIFFERENTIAL EQUATIONS WITHNONDENSELY DEFINED OPERATORSM. BELMEKKI, M. BENCHOHRA, AND S. K. NTOUYASReceived 24 January 2006; Revised 9 August 2006; Accepted 5 September 2006We will establish sufficient conditions for the existen[r]
d’Analyse Num´erique et de Th´eorie de l’Approximation 27 (1998), no. 2, 251–261.[3], Convolution-type integral operators in complex approximation, Computational Methodsand Function Theory 1 (2001), no. 2, 417–432.[4], On the Beatson convolution operators in the unit disk, Journal of Analysis 10 (20[r]
arachidonic acid-preferring acyl-CoA synthetase is aAA release in a specific compartment of the cells A. F. Castillo et al.5020 FEBS Journal 273 (2006) 5011–5021 ª 2006 The Authors Journal compilation ª 2006 FEBShormone-dependent and obligatory protein in the signaltransduction p[r]
ON THE ESTIMATION OF UPPER BOUND FOR SOLUTIONSOF PERTURBED DISCRETE LYAPUNOV EQUATIONSDONG-YAN CHEN AND DE-YU WANGReceived 20 February 2006; Revised 4 June 2006; Accepted 12 June 2006The estimation of the positive definite solutions to perturbed discrete Lyapunov equa-tions is di[r]
be a convex set. A function v : Y → R is quasiconcave if, for each λ ∈ (0,1),we have v(λy1+(1− λ)y2) ≥ min{v(y1),v(y2)},forall(y1, y2) ∈ Y × Y .Moreover,ifforeach pair (y1, y2) ∈ Y × Y such that y1= y2the inequality above is strict, independentlyof the value of λ∈ (0,1), we say that v is strictly q[r]
=R. See also related discussions on unforced delay equations byMatsunaga et al. [12] in the continuous case, and by Erbe et al. [6] or Zhang and Yan [14]Hindawi Publishing CorporationAdvances in Difference EquationsVolume 2006, Article ID 35063, Pages 1–19DOI 10.1155/ADE/2006/350632 For[r]
mappings, and defined resolvent operators associated with (A,η)-accretive mappings.Moreover, by using the resolvent operator technique, many authors constructed someHindawi Publishing CorporationJournal of Inequalities and ApplicationsVolume 2006, Article ID 59836, Pages 1–12DOI 10.1155/JIA/