Search results for "PEO"
showing 10 items of 1745 documents
Associations Between Built Environment Characteristics and Walking in Older Adults in a High-Density City: A Study From a Chinese Megacity
2020
The built environment is an important factor affecting physical activity, especially walkability. Walkability is used to characterize the user friendliness of outdoor physical activity. However, studies on walkability and physical activity are mainly concentrated on low-density Western cities. Study on the walkability of high-density cities in Asia, especially with the elderly, is seriously lacking. And walkability is often used as a composite indicator. This study mainly re-examines the relationship between the common indicators of walkability (population density, street connectivity, land-use mix, and retail density), transport-related walking, and leisure-time walking with older adults i…
Between Solid America and Fragile Chinatown in Maxine Hong Kingston’s The Woman Warrior
2021
The article traces mixed affiliations of the narrator of Maxine Hong Kingston’s The Woman Warrior (1976), permanently split between the world of Chinatown and broader American society outside Chinatown, both places crucial for the narrator in the on-going process of subjectivity construction. While both of these worlds constantly interpellate her, each of them entails a fair measure of hindrance and empowerment. The article undermines the criticism leveled at Kingston’s The Woman Warrior by a section of the Chinese American community represented primarily by Frank Chin. Chin accused Kingston of pandering to white tastes and white readers’ expectations of Chinese American authors. That, acco…
Flavans and other chemical constituents of Crinum biflorum (Amaryllidaceae)
2019
Abstract The ethyl acetate extract from the whole plant of Crinum biflorum Rottb. Showed a moderate activity against Enterococcus faecalis. Its phytochemical investigation led to the isolation of a new flavan-3-ol derivative namely (2R,3R)-3-hydroxy-7-methoxy-3′,4′-methylenedioxyflavan, together with (2S)-7-hydroxy-3′,4′-methylenedioxyflavan, (2R,3R)-7-methoxy-flavan-3-ol, (2S)-7-hydroxy-3′,4′-dimethoxyflavan, 3′,7-dihydroxy-4′-methoxyflavan, 4′,7-dimethoxy-3′-hydroxyflavan, farrerol, β-sitosterol, β-sitosterol-3-O-β-D-glucopyranoside, oleanolic acid, kaempferol, pancratistatin, lupeol, aurantiamide acetate, Narciprimine and 2,3-dihydroxypropyl palmitate. Their structures were elucidated ma…
Fast Matrix Multiplication
2015
Until a few years ago, the fastest known matrix multiplication algorithm, due to Coppersmith and Winograd (1990), ran in time O(n2.3755). Recently, a surge of activity by Stothers, Vassilevska-Williams, and Le~Gall has led to an improved algorithm running in time O(n2.3729). These algorithms are obtained by analyzing higher and higher tensor powers of a certain identity of Coppersmith and Winograd. We show that this exact approach cannot result in an algorithm with running time O(n2.3725), and identify a wide class of variants of this approach which cannot result in an algorithm with running time $O(n^{2.3078}); in particular, this approach cannot prove the conjecture that for every e > 0, …
Intraoperative transfusion practices and perioperative outcome in the European elderly: A secondary analysis of the observational ETPOS study
2022
PLOS ONE 17(1), e0262110 (2022). doi:10.1371/journal.pone.0262110
Supporting bereaved people: a qualitative study on the experience of informal support providers, before and during the pandemic scenario
2023
The COVID-19 outbreak has further highlighted the need to strengthen support networks tosustain grieving people. However, we know very little about the experience of those who,because of their emotional connection with the bereaved person or of their social function,find themselves supporting people in grief. The current study aimed to analyze the experi-ence of grievers’informal support providers (relatives and friends, teachers, religious leaders,funeral providers, pharmacists, volunteers, and social service workers). 162 in-depth inter-views were collected (meanage¼42.3,SD¼14.9; women¼63.6%). Findings highlight twodifferent ways of talking about one’s experience and two different ways of…
Abundance and Distribution Patterns of Thunnus albacares in Isla del Coco National Park through Predictive Habitat Suitability Models
2016
Information on the distribution and habitat preferences of ecologically and commercially important species is essential for their management and protection. This is especially important as climate change, pollution, and overfishing change the structure and functioning of pelagic ecosystems. In this study, we used Bayesian hierarchical spatial-temporal models to map the Essential Fish Habitats of the Yellowfin tuna (Thunnus albacares) in the waters around Isla del Coco National Park, Pacific Costa Rica, based on independent underwater observations from 1993 to 2013. We assessed if observed changes in the distribution and abundance of this species are related with habitat characteristics, fis…
La pernada nacional
1999
La otra Europa
2002
Este texto tuvo otros títulos antes de ser publicado como "La otra Europa": "Por una Europa mejor" y "Salir de la ambigüedad".