In the study of functions of two variables f(x, y) defined over a region in the plane, the double integral has two interpretations: the signed volume between the graph of z = f(x, y) and the xy-plane or the total mass of a lamina with density determined by the function f(x, y). In the case of a function of three variables f(x, y, z), the graph w = f(x, y, z) is a subset of four-dimensional spac...

Objective To develop a multiplex PCR protocol for routine screening of microdeletions on the Y chromosome Methods Five multiplex sets were established and Y chromosome microdeletions screening were carried out in 26 azoospermic men who undertook ICSI and 30 azoospermic men who undertook testicular biopsy. Results In 56 azoospermic men, 5 patients were found with AZFc/DAZ microdeletions, 2 patie...

Interferon gamma (IFN y) has been advocated in open studies as a beneficial remission inducing drug for the treatment of rheumatoid arthritis (RA). The work reported here was designed to assess the therapeutic potential of IFN y in the treatment of RA in a double blind placebo controlied study. It was found that patients treated with IFN y improved significantly with respect to morning stiffnes...

The location of the hole and acid proton in neutral nonprotonated and protonated mixed (phthalocyaninato)(porphyrinato) yttrium double-decker complexes, respectively, is studied on the basis of density functional theory (DFT) calculations on the molecular structures, molecular orbitals, atomic charges, and electronic absorption and infrared spectra of the neutral, reduced, and two possible prot...

Rough relation algebras were introduced by S. Comer as a generalisation of algebras of Pawlak's rough sets and Tarski's relation algebras. In this paper, some algebraic and arithmetical properties of rough relation algebras are studied and the representable rough relation algebras are characterised. 1. Definitions and preliminary results We assume that the reader is familiar with the basic fact...

The efects of trading institutions on market eficiency and trading volume are examined. The trading institutions are computerized versions of continuous double auction and "clearinghouse" markets. Traders are experienced, profit-motivated undergraduates. The traded good is afinancial asset whose moneta y value is stateand trader type-contingent. Traders possess asymmetric private information on...

and Applied Analysis 3 However, Wang and Yu 7 showed that Theorem A is not correct when 0 < α < 1. In fact, they proved the following. Theorem C. Suppose 0 < α < 1, x ∈ 0, π and f are 2π-periodic functions of bounded variation on −π,π . Then for n ≥ 2, one has Rn ( f, x ) ≤ 100 α2nα n ∑ k 1 kα−1Vπ/k 0 ( φx ) , 1.10 and there exists a 2π-periodic function f∗ of bounded variation on −π,π and a po...

CD4 and CD8 have been useful surface markers for a/R T cell maturation . In an a/(3 T cell receptor (TCR) transgenic SCID mice system, it has been shown that a/0 TCR alone is sufficient to induce CD4 and CD8 surface expression on thymic T cells. Although the late embryonic thymic y/b T cells are predominately single and double positive, it has not been clear if y/b TCR has a similar capacity. I...