نتایج جستجو برای: c b r

تعداد نتایج: 2027278  

2004
Artur Korniłowicz Yasunari Shidama

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). (...

Journal: :archives of pediatric infectious diseases 0
soroor erfanimanesh department of microbiology, school of medicine, tehran university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) ali hashemi department of microbiology, school of medicine, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, school of medicine, shahid beheshti university of medical sciences, koodakyar st., tabnak blv., yaman av.,chamran highway p. o. box: 19857-17443, tehran, ir iran. tel: +98-2123872556سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

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.

Journal: :Turkish Journal of Mathematics 2023

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(...

Journal: :مجله بین المللی زیست و زیست پزشکی 0
ramezan behzadi north research center-pasture institute of iran, amol, iran sadegh fattahi north research center-pasture institute of iran, amol, iran mohammad reza momtaz north research center-pasture institute of iran, amol, iran saeid kavoosian north research center-pasture institute of iran, amol, iran mohsen asouri north research center-pasture institute of iran, amol, iran haleh akhavan-niaki department of anatomy, babol university of medical sciences, babol, iran

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...

2016
ADRIANO FERNANDES

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+ ...

2003
C C Costas Busch Mukkai S. Krishnamoorthy Malik Magdon-Ismail

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...

Journal: :acta medica iranica 0
giti shams department of psychiatry, roozbeh hospital, tehran university of medical sciences, tehran, iran. yaghoob esmaili department of psychology, islamic azad university rodhen branch, rodhen, iran. narges karamghadiri department of psychiatry, roozbeh hospital, tehran university of medical sciences, tehran, iran. narges ebrahimhkani department of psychiatry, roozbeh hospital, tehran university of medical sciences, tehran, iran. youness yousefi department of psychiatry, roozbeh hospital, tehran university of medical sciences, tehran, iran.. dean mckay department of psychology, fordham university, usa.

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...

2002
J. A. Schmidt

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....

2007
David Mahalel Joseph Prashker Carlo Giacomo Prato

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

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید