نتایج جستجو برای: reversal

تعداد نتایج: 34761  

Journal: :Discrete Mathematics & Theoretical Computer Science 2016
Josefran de Oliveira Bastos Leonardo Nagami Coregliano

In this paper, we present two new results of layered permutation densities. The first one generalizes theorems from Hästö (2003) and Warren (2004) to compute the permutation packing of permutations whose layer sequence is (1, l1, l2, . . . , lk) with 2−a−1 ≥ k (and similar permutations). As a second result, we prove that the minimum density of monotone sequences of length k + 1 in an arbitraril...

Journal: :Symmetry 2014
Ted Janssen

An overview is given of the use of symmetry considerations for aperiodic crystals. Superspace groups were introduced in the seventies for the description of incommensurate modulated phases with one modulation vector. Later, these groups were also used for quasi-periodic crystals of arbitrary rank. Further extensions use time reversal and time translation operations on magnetic and electrodynami...

1989
Lincoln Wolfenstein

Three possibilities for the origin of CP violation are discussed: (1) the Standard Model in which all CP violation is due to one parameter in the CKM matrix, (2) the superweak model in which all CP violation is due to new physics and (3) the Standard Model plus new physics. A major goal of B physics is to distinguish these possibilities. CP violation implies time reversal violation (TRV) but di...

Journal: :caspian journal of environmental sciences 2006
b. b. kaliwal m. d. parimala

mancozeb, a fungicide of a manganese-zinc ethylenebisdithio-carbamate (ebdc), was administered by gavage at doses of 200, 400, 600 and 800 mg/kg/day to female virgin mice for 30 days. the mice were autopsied on 31st day. mice were also treated with similar doses for a period of 30 days and the treatment was withdrawn for a further period of 30 days for reversible study. the mice were autopsied ...

Journal: :Geophysical Journal International 1967

Background:Body packers occasionally refer to the Emergency Department (ED), after leakage of package contents within intestinal lumen, resulting in life-threatening toxicities, depending upon the nature of the chemical product. Case Presentation: We present a case report of a patient presented with sudden onset of drowsiness while he was on board a flight. He was brought in by the airport secu...

In this paper, we de ne the concepts of general fuzzy recognizer, language recognized by a general fuzzy recognizer, the accessible and the coac- cessible parts of a general fuzzy recognizer and the reversal of a general fuzzy recognizer. Then we obtain the relationships between them and construct a topology and some hypergroups on a general fuzzy recognizer.

Journal: :journal of reproduction and infertility 0

introduction: the prevalence of somatic chromosomal abnormalities in infertile male individuals has been reported to vary in different literatures. the aim of this study was to investigate the frequency of chromosomal aberrations among infertile men referred to the cytogenetic laboratory of iran blood transfusion organization research centre (ibto). materials and methods: chromosomal analysis w...

Journal: :iranian journal of child neurology 0
zia islami md,fellowship of neonatology, associate professor, department of pediatrics, shahid sadoughi university of medical sciences, yazd, iran hosein ataii nakhaei resident, department of pediatrics, shahid sadoughi university of medical sciences, yazd, iran razieh fallah assistant professor of pediatric neurology, department of pediatrics, shahid sadoughi university of medical sciences, yazd, iran

camptomelic dysplasia (cmd) is a rare autosomal dominant congenital dwarfism characterized by shortness and bowing of long bones (camptomelia) and other severe skeletal and extra skeletal malformations. cmd is generally considered to be lethal and the majority of cases die in the neonatal period due to respiratory insufficiency. we hereunder report a term male neonate with characteristic clinic...

Journal: :Journal of Clinical Pathology 2004

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