Results 21 to 30 of about 264,184 (301)

RAPID, SENSITIVE COLORIMETRIC ASSAY FOR ISOPRENALINE [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 1980
A simple, rapid, selective and highly sensitive colorimetric method for the determination of isoprenaline (isoproterenol) is described. The method depends on the interaction of dimethoxydiquinone, with isoprenaline sulphate under specified conditions ...
S. Ibrahim, Salwa El-Shabouri
doaj   +1 more source

Products of ideals of linear forms in quadric hypersurfaces [PDF]

open access: yes, 2019
Conca and Herzog proved that any product of ideals of linear forms in a polynomial ring has a linear resolution. The goal of this paper is to establish the same result for any quadric hypersurface.
Vu, Thanh, Nguyen, Hop D., Conca, Aldo
core   +1 more source

Is the Linear Modeling Technique Good Enough for Optimal Form Design? A Comparison of Quantitative Analysis Models

open access: yesThe Scientific World Journal, 2012
How to design highly reputable and hot-selling products is an essential issue in product design. Whether consumers choose a product depends largely on their perception of the product image.
Yang-Cheng Lin   +3 more
doaj   +1 more source

Killing Forms, W-Invariants, and the Tensor Product Map [PDF]

open access: yes, 2017
Associated to a split, semisimple linear algebraic group G is a group of invariant quadratic forms, which we denote Q(G). Namely, Q(G) is the group of quadratic forms in characters of a maximal torus which are fixed with respect to the action of the ...
Ruether, Cameron
core   +1 more source

Parameter Estimation for the Log-Logistic Distribution Based on Order Statistics

open access: yesRevstat Statistical Journal, 2018
In this paper, we discuss the moments and product moments of the order statistics in a sample of size n drawn from the log-logistic distribution. We provide more compact forms for the mean, variance and covariance of order statistics.
Mohammad Ahsanullah , Ayman Alzaatreh
doaj   +1 more source

Isolation Theorem for Products of Linear Forms [PDF]

open access: yesProceedings of the American Mathematical Society, 1987
A theorem of Cassels and Swinnerton-Dyer about products of three linear forms with real coefficients is generalized to products of any number of linear forms.
openaire   +1 more source

Product forms as a solution base for queueing systems [PDF]

open access: yes, 1992
A class of queueing networks has a product-form solution. It is interesting to investigate which queueing systems have solutions in the form of linear combinations of product forms.
Ivo J. B. F. Adan   +6 more
core   +1 more source

Linear forms in elliptic logarithms [PDF]

open access: yes, 1985
New lower bounds for linear forms in n (≥ 2) elliptic logarithms in the CM case are established. The estimate is better than all previous estimates with respect to some of the parameters that appear.
Yu, Kunrui
core   +1 more source

Polynomial Approximation on Unbounded Subsets, Markov Moment Problem and Other Applications

open access: yesMathematics, 2020
This paper starts by recalling the author’s results on polynomial approximation over a Cartesian product A of closed unbounded intervals and its applications to solving Markov moment problems.
Octav Olteanu
doaj   +1 more source

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