were isolated from the roots of Verbascum lasianthum Boiss. ex Bentham. In addition, 2 phenylethanoid glycosides, verbascoside {=acteoside, [β-(3,4-dihydroxyphenyl)-ethyl]-(3′-O-α-L-rhamnopyranosyl)-(4′ O-caffeoyl)-β-D-glucopyranoside} (4) and poliumoside {= [β-(3,4-dihydroxyphenyl)-ethyl]-(3′,6′-O-αL-dirhamnopyranosyl)-(4′ -O-caffeoyl)-β-D-glucopyranoside} (5), were also isolated. The structur...

Let X be a smooth complex projective variety and A an abelian group. Degree i unramified cohomology H i nr(X,A) of X with coefficients in A can be defined as the direct limit of the sets of data αk ∈ H i B(Uk, A), αk|Uk∩Ul = αl|Uk∩Ul , where the Uk’s are sufficiently small Zariski open sets covering X. Here the notation H i B stands for Betti cohomology of the underlying complex analytic space....

Let L be a finite-dimensional, semisimple Lie algebra over an algebraically closed field k of characteristic 0. Let H be a fixed Cartan subalgebra of L, and Φ be the root system. Fix a base ∆ = {α1, · · · , αl} of Φ. Let Λ denote the set of dominant, integral linear functions on H. Theorem 0.1. There is a one-to-one correspondence Λ ∼ −→ {isomorphism classes of finite-dimensional irreducible L-...

Two flavonol glycosides: 5,7,3-trimethoxyquercetin -3-O-β-D-fructofuranoside (1), 7,4′-O-dimethylluteolin 5-O-[αL-arabinofuranosyl-(1→6)-β-D-glucopyranoside] (2) and one fatty acid ester (Z)-3-hydroxypentan-2-yl-10aminooctacos-9-enoate (3) were isolated from the leaves of Aconitum carmichaeli Debx growing in Ha Giang province, Vietnam. Their structures were elucidated by spectroscopic methods, ...

The main approach to handle endogeneity in econometrics has been instrumental variable estimator (IVE). An instrument m requires E(mu) = 0 where u is an error term, and if E(mu) 6= 0 is likely, then m gets discarded. But when E(mu) 6= 0, fairly often one has a good idea on the sign of E(mu), and it will be a waste to toss out the sign information. This paper shows how to make use of the informa...

We consider the equation ut = uxx + b(x)u(1 − u), x ∈ R, where b(x) is a nonnegative measure on R that is periodic in x. In the case where b(x) is a smooth periodic function, it is known that there exists a travelling wave (more precisely a “pulsating travelling wave”) with average speed c if and only if c ≥ c∗(b), where c∗(b) is a certain positive number depending on b. This constant c∗(b) is ...

The leptonic QED radiative corrections are calculated in the next-to-leading log approximation O [ α2 ln(Q/me) ] for unpolarized deeply inelastic ep–scattering in the case of mixed variables. The corrections are determined using mass factorization in the OMS– scheme for the double–differential scattering cross sections.

We consider the problem of estimating an unknown regression function when the design is random with values in k . Our estimation procedure is based on model selection and does not rely on any prior information on the target function. We start with a collection of linear functional spaces and build, on a data selected space among this collection, the least-squares estimator. We study the perform...

the effect of chronic inflammation induced by complete freund's adjuvant (cfa) on anterior blood vessels of knee joint and its diameter was studied. blood flow changes in response to phenylephrine (αl-adrenoceptor agonist) in cfa-treated and contralateral knee joints were observed over a 40-day period, using laser doppler flowmetery (ldf) technique. unilateral injection of cfa (0.2 ml) inc...