نتایج جستجو برای: c b r
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In this paper r, s are real numbers. We now state several propositions: (1) 0 ¬ r + |r|. (2) 0 ¬ −r + |r|. (3) If |r| = |s|, then r = s or r = −s. (4) For all natural numbers i, j such that i < j and i 6= 0 holds i j is not integer. (5) {2 · k; k ranges over natural numbers: k > 1} is infinite. (6) For every function f and for all sets a, b, c such that a 6= c holds (f+·(a7−→ . b))(c) = f(c). (...
antimicrobial resistance is one of the most severe threats to human health. the first report of plasmid-mediated colistin resistance in escherichia coli from animals, food, and humans was in 2015 from china. the current increasing trend of resistance is extremely troubling because polymyxins are the last-resort antibiotics for treating infections with carbapenem-resistant enterobacteriaceae.
Global bifurcation of positive solutions for a class of superlinear first-order differential systems
We are concerned with the first-order differential system of form $$\left\{ \begin{array}{ll} u'(t)+a(t)u(t)=\lambda b(t) f(v(t-\tau(t))), &t\in\mathbb{R},\\ v'(t)+a(t)v(t)=\lambda b(t)g(u(t-\tau(t))), \end{array} \right. $$ where $\lambda\in\mathbb{R}$~is a parameter. $a,b\in C(\mathbb{R},[0,+\infty))$ two $\omega$-periodic functions such that $\int_0^\omega a(t)\text{d}t>0$,~$\int_0^\omega b(...
the ability to maintain and study human tissues in in-vivo environment has proved to be a valuable tool in breast cancer research for several decades. the most widely tissues have been xenografts established human breast cancer cell lines into athymic nude mice. the aim of this study was to provide a new accurate and affordable method for the establishment of breast cancer xenograftin nude mice...
Definition 1.1 (Rings). The algebraic structure “ring” R is a set with two binary operations + and ·, respectively named addition and multiplication, satisfying • (R,+) is an abelian group (i.e. a group with commutative addition), • is associative (i.e. 8a, b, c 2 R, (a · b) · c = a · (b · c)) , • and the distributive law holds (i.e. 8a, b, c 2 R, (a+ b) · c = a · c+ b · c, a · (b+ c) = a · b+ ...
Fair cake-cutting is the division of a cake or resource among N users so that each user is content. Users may value a given piece of cake differently, and information about how a user values different parts of the cake can only be obtained by requesting users to “cut” pieces of the cake into specified ratios. Many distributed computing problems which involve resource sharing can be expressed as...
the obsessive beliefs questionnaire-44 (obq-44), a self-report measure, was developed by the obsessive compulsive cognitions working group (occwg) to assess beliefs considered relevant in the etiology and maintenance of obsessions and compulsions. the purpose of this study was to evaluate the psychometric properties of the persian language version of the obsessive beliefs questionnaire (pobq-44...
J. A. Schmidt," K. I. Thomassen, b R. J. Goldston, a G. H. Neilson, c W. M. Nevins, b J. C. Sinnis," P. Anderson," W. Bair, r W. L. Barr, b D. B. Batchelor, c C. Baxi," G. Berg, ~ S. Bernabei, a J. M. Bialek," P. T. Bonoli, h A. Boozer, i D. Bowers, v G. Bronner,`" J. N. Brooks, d T. G. Brown,q R. Bulmer, b D. Butner, b R. Campbell, e T. Casper, b E. Chaniotakis, h M. Chaplin, b S. J. Chen," E....
o r r a a t t o o r r y y r r e e s s e e a a r r c c h h b b y y m m e e a a n n s s o o f f d d a a t t a a b b e e t t w w e e e e n n t t h h e e i i n n f f r r a a s s t t r r u u c c t t u u r r e e , , t t h h e e d d r r i i v v e e r r s s a a n n d d t t h h e e c c h h a a r r a a c c t t e
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