A nonlocal boundary value problem for the fractional version of Rayleigh–Stokes equation, well-known in fluid dynamics, is studied. Namely, condition u(x,T)=βu(x,0)+φ(x), where β an arbitrary real number, proposed instead initial condition. If β=0, then we have inverse time, called backward problem. It that ill-posed sense Hadamard. β=1, corresponding non-local becomes well-posed Hadamard, and ...

In our continued efforts to explore the antidiabetic potential of pregnanes from Apocynaceae, especially Asclepiadoideae subfamily, sixteen derivatives 1-16 previously isolated various Cynanchum species, have been evaluated for their ability increase glucagon-like peptide-1 (GLP-1) release in a cell assay. As result, otophylloside A (2), wilfoside C1N (13), and C3N (16) were found stimulate sig...

We outline a relation between the densities for β-ensembles with respect to Jacobi weight (1 − x)a(1 + x)b supported on interval (−1, 1) and Cauchy (1−ix)η(1+ix)η̄ by appropriate analytic continuation. This has consequence of implying that latter density satisfies linear differential equation degree three β = 2 five 1 4, analogs which are already known xa(1 (0, 1). concentrate case b [Jacobi 1)]...

the chemical composition of the essential oils of flower at the pre-flowering, full-flowering and post-flowering stage of a. annua was analyzed by gc and gc/ms and sixty-two components were identified. the main compounds in the pre-flowering oil were β-myrcene (37.71%), 1, 8-cineole (16.11%) and camphor (14.97%). the full-flowering oil contained predominantly caryophyllene (19.4%), germacrene d...

Phytochemical study on the methanolic extract of aerial parts this plant led to isolation 7 phenolic compounds (1-7), including 3 new ones (1-3). Their chemical structures were determined be (7,8- threo)-1 -O-β-D-[6′ -O-syringoylglucopyranosyl]-2-methoxy-7,8,9-trihydroxyphenylpropane (1), threo)-8 -O-(2′′-methoxyacetophenone-1′′-yl)-1 -O-β-D-glucopyranosyl-2-methoxy-7,9-dihydroxyphenylpropane (...

Background The aggregation of tau hyperphosphorylation (p-tau) into neurofibrillary tangles (NFT) is a hallmark in the histopathology Alzheimer’s disease (AD). Our previous experiments found that β-asarone could prevent injury PC12 cells induced by A 1–42 , but it fight cell damage p-tau okadaic acid (OA) poorly understood. Objectives emphasis this study lies β-asarone’s therapeutical effect on...