Results 61 to 70 of about 134,176 (195)

Borospherene in the Nanohoop: Complexation and Aromaticity of Neutral and Dioxidized Cycloparaphenylene Supramolecules with B40 and C60 Fullerenes

open access: yesChemistry – A European Journal, Volume 30, Issue 49, September 2, 2024.
[9]‐ and [10]‐Cycloparaphenylenes encapsulate borospherene B40 forming host‐guest complexes with comparable complexation energy to carbon fullerenes, exhibiting double host‐guest aromaticity at the dioxidized state. Abstract Supramolecular complexes of carbon nanohoops with fullerenes play a key role for the design of novel nanomaterials with ...
Rafael Lingas   +2 more
wiley   +1 more source

Arquitectura y emergencia: Sistema de evacuación vertical para Iquique, Chile

open access: yesARQUITECTURAS DEL SUR, 2018
Chile posee una larga historia de terremotos y tsunamis, y como resultado, el país ha implementado un estricto sistema normativo que ha permitido dar una respuesta adecuada a casos de terremotos recientes. Ahora bien, en caso de tsunami, tales respuestas se encuentran aún en una etapa de desarrollo, particularmente después de los sucesos del año 2010 ...
Sebastián Laclabere Arenas   +1 more
openaire   +2 more sources

Electrocatalytic upcycling of plastic waste: Progress, challenges, and future

open access: yesElectron, Volume 2, Issue 3, August 2024.
Plastic waste poses significant environmental challenges. Electrocatalytic upcycling of plastic waste represents a novel catalytic technology characterized by its mild operational conditions, high transformation efficiency, and product selectivity. This review examines the progress, challenges, and future of electrocatalytic upcycling of plastic waste.
Jinzhou Li   +5 more
wiley   +1 more source

NEW SMARANDACHE SEQUENCES: THE FAMILY OF METALLIC MEANS [PDF]

open access: yes, 2003
The family of Metallic Means comprises every quadratic irrational number that is the positive solution of algebraic equations, where n is a natural number.
W. de Spinade, Vera
core   +1 more source

Rent–wage inequality in Mexico City, 1770–1930

open access: yesThe Economic History Review, Volume 77, Issue 3, Page 1035-1056, August 2024.
Abstract This article traces trends of income inequality in Mexico City from 1770 to 1930 by measuring the gaps between urban real estate rents and unskilled wages. The article presents the first long‐term series of real estate values and rental income for Mexico.
Amílcar E. Challú   +2 more
wiley   +1 more source

Earthen construction: structural vulnerabilities and retrofit solutions for seismic actions [PDF]

open access: yes, 2012
Earthen structures present very appealing characteristics regarding a more sustainable practice with the preservation of our natural resources. However, when subjected to earthquake ground motions, this type of construction may present a deficient ...
Oliveira, C. F., Vargas, J., Varum, H.
core   +1 more source

Living with voracious roommates: Factors that explain isotopic niche variation in a mixed colony of insectivorous bats

open access: yesEcology and Evolution, Volume 14, Issue 3, March 2024.
This study analyzed the isotope signal in feces collected from a mixed colony of Tadarida brasiliensis and Myotis chiloensis to explore feeding overlap and the factors that determine prey selection. The results showed that age‐dependent specialization exists in Myotis chiloensis, with a significant role in moonlight intensity and sex.
Isaac Peña‐Villalobos   +4 more
wiley   +1 more source

Amereida revisited. The role of religion in speeches and architectures of the Ciudad Abierta of Valparaiso (Chile) [PDF]

open access: yes, 2013
La Corporación Cultural de Amereida ubicada en los terrenos de la Ciudad Abierta de Valparaíso (Chile) cuenta con una serie de construcciones de uso religioso, sin embargo, la práctica de la religión también se hace arquitectura mediante otros procesos ...
Aguilar Alejandre, María
core  

Masa crítica: El nuevo paisaje de la arquitectura en Chile

open access: yesANALES DE ARQUITECTURA UC, 2020
No presenta resumen. 
openaire   +1 more source

Elementos para una historia arquitectónica del Mercado Central de Concepción [PDF]

open access: yes, 2018
El siguiente artículo presenta el caso del Mercado Central de Concepción y de su erróneamente atribuida autoría al arquitecto húngaro y ex alumno de la escuela Bauhaus, Tibor Weiner. En ese sentido, se busca articular una nueva narrativa historiográ
Salazar, Camila
core   +1 more source

Home - About - Disclaimer - Privacy