Memory impairment is the most common symptom in patients with Alzheimer's disease (AD). Angelica keiskei (AK) has traditionally been used as a diuretic, laxative, analeptic and galactagogue. However, the anti-amnesic effects of AK and its molecular mechanisms have yet to be clearly elucidated. The aim of the present study is to evaluate the effects of AK on scopolamine-induced memory impairment...

Linkers and/or Multiple Building Units and the Minimal Transitivity Principle Mian Li,† Dan Li,† Michael O’Keeffe,*,‡,§ and Omar M. Yaghi †Department of Chemistry, Shantou University, Guangdong 515063, P. R. China ‡Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States Graduate School of EEWS (WCU), KAIST, 373-1, Guseng Dong, Yuseong Gu, Daejeon ...

Social and environmental effects of ecotourism in the Osa Peninsula of Costa Rica: the Lapa Rios case Angelica M. Almeyda Zambrano abc; Eben N. Broadbent bcd; William H. Durham ac a Department of Anthropology, Stanford University, Stanford, CA, USA b Carnegie Institution for Science, Department of Global Ecology, Stanford University, Stanford, CA, USA c Center for Responsible Travel, Stanford U...

The first phytochemical investigation of the fruits of Angelica lucida has led to the isolation and characterization of five known coumarins (imperatorin, isoimperatorin, heraclenol, oxypeucedanin hydrate and heraclenin). All isolated compounds were identified by means of spectral and literature data. The extracts and the isolated constituents from A. lucida have been also evaluated for their a...

A new natural coumarin, angepubebisin (1), and a new furan, angepubefurin (2), together with the five known compounds, umbelliferone, angelol B (3), ulopterol (4), peucedanol (5), and scopoletin, were isolated from the roots of Angelica pubescens Maxim. f. biserrata Shan et Yuan. The structures of angepubebisin (1) and known compounds were determined by spectroscopic methods, including IR, UV, ...

illustrated shahnama of shah tahmasp, manuscript of1538ad and one ofsafvidperiodemasterpiece in persian painting,composed of 258 paintings. illustrators for stories painting, sometimes have chosen several time and place of a story to illustrate and have created a namber of works. fereydoun, zahak, siavash, zal, anoushiravan and kaykhosro stories are like this. some of these paintings have image...

In this paper we consider a family of dynamical systems (“arabesques”) defined as closed chains of 2-element negative circuits. An n-dimensional arabesque system has n 2-element circuits, but in addition, it displays by construction, two n-element circuits which are both positive vs one positive, one negative, depending on the parity (even vs odd) of the dimensionality n. In view of the absence...