Let $X\subset \PP^r$ be an integral projective variety. We study the dimensions of joins several copies osculating varieties $J(X,m)$ $X$. Our methods are general, but we give a full description in all cases only if $X$ is linearly normal embedding $\PP^1\times \PP^1$. For these embeddings \PP^1$ examples and then one copy arbitrary number

dry land salinity is one of the major problems affecting agricultural products. the main consequences of plant exposure to salt stress are water deficit and ion excess, which lead to several morphological and physiological changes. in order to evaluate the effect of salinity on some physiological characteristics of 8 spring rapeseed cultivars, an experiment was conducted in the greenhouse at ya...

nowadays, polymer blends usages increase more and more in order to produce materials with better properties. according to many research works, the blends of polyolefins have shown industrial importance. the purpose of this project was to carry out some investigations on fibers melt spun from the polypropylene and low density polyethylene blends. pp and ldpe are immiscible. pp/ldpe blend filamen...

NIPP-1 is a subunit of the major nuclear protein phosphatase-1 (PP-1) in mammalian cells and potently inhibits PP-1 activity in vitro. Using yeast two-hybrid and co-sedimentation assays, we mapped a PP-1-binding site and the inhibition function to the central one-third domain of NIPP-1. Full-length NIPP-1 (351 residues) and the central domain, NIPP-1(143-217), were equally potent PP-1 inhibitor...

PURPOSE Reversible protein phosphorylation is a fundamental regulatory mechanism in all biologic processes. Protein serine/threonine phosphatases-1 (PP-1) and 2A (PP-2A) account for 90% of serine/threonine phosphatase activity in eukaryote cells and play distinct roles in regulating multiple cellular processes and activities. Our previous studies have established the expression patterns of the ...

1 Abbreviations used: HLM, human liver microsomes; HO-1-PP, 5-hydroxy-1-(2-pyrimidinyl)-piperazine; LC/MS, liquid chromatography/mass spectrometry; NADPH, β-nicotinamide adenine dinucleotide phosphate sodium (reduced form); 1-PP, 1-(2-pyrimidinyl)-piperazine ABSTRACT 1-(2-Pyrimidinyl)-piperazine (1-PP) is an active metabolite of several psychoactive drugs including buspirone. 1-PP is also the m...