Results 81 to 90 of about 87,022 (244)

Explaining the Origin of Negative Poisson's Ratio in Amorphous Networks With Machine Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review summarizes how machine learning (ML) breaks the “vicious cycle” in designing auxetic amorphous networks. By transitioning from traditional “black‐box” optimization to an interpretable “AI‐Physics” closed‐loop paradigm, ML is shown to not only discover highly optimized structures—such as all‐convex polygon networks—but also unveil hidden ...
Shengyu Lu, Xiangying Shen
wiley   +1 more source

Domino Polymerization for the Synthesis of Reductively Degradable Poly(disulfide)s With Arbitrary Side‐Chain Structures

open access: yesAngewandte Chemie, EarlyView.
We developed a novel domino polymerization to synthesize reductively degradable poly(disulfide)s with tunable side chains. A novel monomer bearing thiolactone and pyridyl disulfide groups reacts with various amines, enabling continuous ring‐opening and disulfide exchange.
Yukiya Kitayama   +2 more
wiley   +2 more sources

La movilidad residencial de los hogares con bajos ingresos y jefatura femenina en el área metropolitana de Bogotá

open access: yesTerritorios, 2013
En este artículo se analizan algunos aspectos de la movilidad residencial de los hogares con bajos ingresos y jefatura femenina en el área metropolitana de Bogotá.
Hernando Sáenz Acosta
doaj  

Migraciones intrametropolitanas de los extranjeros:: Diferencias y semejanzas en las metrópolis de Barcelona y Madrid. [PDF]

open access: yes, 2013
Este artículo analiza las pautas de movilidad interna de la población extranjera en las dos mayores regiones metropolitanas españolas, la de Barcelona y la de Madrid, cuya comparación nos permite remarcar las semejanzas y las diferencias en las pautas de
Bayona i Carrasco, Jordi   +2 more
core  

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Densidades divergentes y segregación socio-espacial en la Bogotá de hoy: un análisis a partir de un índice de calidad de la densidad [PDF]

open access: yes, 2016
La densidad poblacional de Bogotá es bastante diversa al decir de la amplitud de su rango, siendo el mínimo una persona por hectárea y el máximo de 622/ha.
Alfonso R, Óscar A
core   +1 more source

The intersection of health inequalities and COVID‐19: Evidence from National Health Insurance Big Data in South Korea

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract Health inequalities persist along lines of income and wealth, shaped by unequal access to healthcare, differences in health behaviors, and pre‐existing chronic conditions. The COVID‐19 pandemic further put families in Korea under health strain and worsened their health outcomes.
Jaehyun Nam   +3 more
wiley   +1 more source

La región metropolitana boliviana de la Paz-El Alto

open access: yesCuaderno Urbano, 2012
El artículo describe, a juicio del autor, las características principales de las ciudades de La Paz y El Alto, ubicadas al este de Bolivia, que junto con Cochabamba y Santa Cruz constituyen las tres metrópolis del país.
Alfonso David Barrientos Zapata
doaj  

Desafíos de las metrópolis: Efectos ambientales y sociales. Tendencias geográficas II [PDF]

open access: yes, 2016
El libro está conformado de estudios realizados por profesores-investigadores de la Universidad Autónoma del Estado de México, de la Universidad de Varsovia, así como de la Universidad Pedagógica Comisión de Educación Nacional de Cracovia.
Adame Martínez, Salvador   +49 more
core  

Epidemiology of Cancer‐Associated Venous Thromboembolism Across the United States

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Prior epidemiological studies on cancer‐associated venous thromboembolism (VTE) were limited by homogenous patient populations. We leverage Cosmos, a collaborative dataset of Epic electronic health record systems, to conduct an updated evaluation of cancer‐associated VTE in the United States (US).
Barbara D. Lam   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy