BACKGROUND This study investigated the effect of remifentanil pretreatment on Cos-7 cells exposed to oxidative stress, and the influence of remifentanil on intracellular autophagy and apoptotic cell death. METHODS Cells were divided into 4 groups: (1) Control: non-pretreated cells were incubated in normoxia (5% CO2, 21% O2, and 74% N2). (2) H2O2: non-pretreated cells were exposed to H2O2 for ...

A new family of very fast stream ciphers called COS (for “crossing over system”) has been proposed by Filiol and Fontaine, and seems to have been adopted for at least one commercial standard. In this note we show that the COS ciphers are very weak indeed — it requires negligible effort to reconstruct the state of the keystream generator from a very small amount of known keystream.

In this paper we present the design and implementation of a system that exploits well-known design patterns to facilitate construction of an extensible system for comparison and visualization of ordering methodologies for class-based testing of C++ applications. Using our implementation, we present a comparative study and evaluation of two advanced ordering methodologies: the edge based approac...

in this study, in order to facilitate and accelerate the production of eukaryotic protein alpha 1-antitrypsin (aat) with correct post-translational modifications, a protein production system based on the transduction of cho and cos-7 cells using lentiviral vectors was developed. human aat cdna was cloned into a replication-defective lentiviral vector. the transgene aat-jred chimer was transferr...

An increasing body of scientific research on the nature, correlates, and effects compassion has accrued over recent years. Expert agreement not yet been reached conceptualisation for others, existing self-report measures others have often lacked psychometric quality content validity. Recent publications longer represent significant strides towards ameliorating these issues. However, there is a ...

Aflatoxin B1 (AFB1) –induced liver damage may be treated with chitosan oligosaccharide (COS), a small-molecular–weight excellent bioactivity and antioxidant potential. Hepatotoxicity induced by AFB1 single acute exposure (ASAE) has been theoretically established but the mechanism of toxicity in aquatic models less studied. In this paper, model injury Japanese medaka (Oryzias latipes) after ASAE...

OBJECTIVE The additional arch length required for leveling (AALL) the curve of Spee (COS) can be estimated by subtracting the two-dimensional (2D) arch circumference, which is the projection of the three-dimensional (3D) arch circumference onto the occlusal plane, from the 3D arch circumference, which represents the arch length after leveling the COS. The purpose of this study was to determine ...

Exercice 1. Factorisation de X − 1 Factoriser X − 1 sur C. 1) En déduire ∏n−1 k=1 sin( kπ n ). 2) Calculer également ∏n−1 k=0 sin( kπ n + θ). 3) On note ω = e2iπ/n. Calculer ∏ k 6=`, k,`∈[0,n−1](ω − ω). Exercice 2. Mines MP 1999 Montrer que ∏n−1 k=0(ω − 2ω cos θ + 1) = 2(1− cos(nθ)) pour ω = e2iπ/n. Exercice 3. Racines de j et j2 Montrer que si p 6 n, alors X2p +X2 + 1 divise X2n +X2 + 1. Exerc...