It is well-known that there is an efficient method for decrypt-ing/signing with RSA when the secret exponent d is small modulo p− 1and q − 1. We call such an exponent d a small CRT-exponent. It is one of the major open problems in attacking RSA whether there exists a polynomial time attack for small CRT-exponents, i.e. a result that can be considered as an equivalent to the Wiener and B...

Animal societies depend on effective defence of group resources. Defensive mechanisms can be costly and may constrain the evolution of social structure. We analysed how exocrine mechanisms of colony defence were affected by the evolution of social complexity and of nest architecture in paper wasps (Vespidae). Eusocial paper wasp species exhibit two discrete grades of eusociality, with new colon...

fabrication and electrochemical characterization of a sensor for the determination of epinephrine (ep), uric acid (ua) and folic acid (fa) is described. the sensor  was prepared using carbon paste electrode (cpe) modified with 3,4-dihydroxybenzaldehyde-2,4-dinitrophenylhydrazone (ddp) and carbon nanotubes (cnts), which makes the modified electrode highly sensitive for the electrochemical detect...

objective: cyclophosphamide (cp) is a chemotherapy drug which causes deleterious effects on testicular tissue and increases free radicals in the body. the aim of this study is to investigate the protective effects of ethyl pyruvate (ep) on testicular improvement in cp treated animals. materials and methods: in this experimental study, 15 male mice (6-8 weeks) were divided into 3 groups. the con...

To compare the signal transduction pathways used by erythropoietin (Ep) and interleukin-3 (IL-3), the cDNA for the murine erythropoietin receptor (EpR) was introduced into the IL-3-responsive cell lines Ba/F3 and DA-3 using retrovirally mediated gene transfer. After selection in G418 and IL-3, clones expressing comparable levels of cell surface EpR were identified using biotinylated Ep and flow...

PURPOSE This randomised trial was designed to investigate the activity and toxicity of continuous infusion etoposide phosphate (EP), targeting a plasma etoposide concentration of either 3 micrograms/ml for five days (5d) or 1 microgram/ml for 15 days (15d), in previously untreated SCLC patients with extensive disease. PATIENTS AND METHODS EP was used as a single agent. Plasma etoposide concen...

The accurate measurement of biologically active erythropoietin (Ep) in human serum and plasma using present in vivo and in vitro bioassays is difficult because of the presence of both inhibitors and non-Ep stimulators of erythropoiesis. We have developed a simple procedure to quantitatively purify Ep from serum and plasma for subsequent testing in the phenylhydrazine-treated mouse spleen cell a...