Results 81 to 90 of about 2,851,649 (388)

Advanced Water Production via Point of Use Super‐Ultralow‐Pressure Reverse Osmosis and Cellulose‐Polyamide Thin‐Film Nanocomposite Membranes

open access: yesAdvanced Materials Interfaces, EarlyView.
Revolutionizing water filtration: a cellulose‐based membrane delivers twice as much clean water as commercial systems at super‐ultralow pressure (0.2 MPa). The expanded interfacial polymerization enhances the “leaf‐like” PA/CM‐CNF skeleton structure and fully covers the polysulfone (PS) layer, improving diffusion and water production.
Juan Luis Fajardo‐Diaz   +13 more
wiley   +1 more source

Índice por materias

open access: yesSalud Pública de México, 2015
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Salud Pública de México
doaj  

Gold‐Catalyzed Synthesis of Fluorenones via Intramolecular C–H Arylation

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Starting from 2‐diazobenzophenones, a straightforward synthesis of valuable fluorenones via a gold‐catalyzed one‐pot oxidation, C–H activation, and cyclization is described. The addition of ascorbic acid, the correct selection of the counteranion of the 2‐diazobenzophenones, and the use of terpyridine as an auxiliary ligand are crucial for the reaction
Osvaldo Felipe López‐Saladino   +5 more
wiley   +1 more source

El México de Manuel Puig [PDF]

open access: yes, 2020
Fil: Goldchluk, Graciela. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.
openaire  

An annotated list of the centipedes (Chilopoda) in the National Collection of Arachnids, Instituto de Biología, Universidad Nacional Autónoma de México : Addendum: Scutigeromorpha and Scolopendromorpha [PDF]

open access: yes, 2013
This addendum to “An annotated list of the centipedes (Chilopoda) in The National Collection of Arachnids (Colección Nacional de Arácnidos, CNAN), Instituto de Biología, Universidad Nacional Autónoma de México” (México City), is based on new samples ...
Cupul-Magaña, Fabio Germán
core  

Thermal and Dimensional Stability of Photocatalytic Material ZnPS3 Under Extreme Environmental Conditions

open access: yesAdvanced Electronic Materials, EarlyView.
This work shows that ZnPS3 exhibits remarkable stability under extreme conditions. It undergoes a reversible pressure‐induced phase transition with the onset at 12.5 GPa, followed by a semiconductor‐to‐semimetal transition at 100 GPa. PL, Raman, and X‐ray spectroscopies as well as first‐principles modeling reveal defect‐assisted emission, a large ...
Abhishek Mukherjee   +12 more
wiley   +1 more source

ESTRUCTURA DE RODALES DE Pinus hartwegii AFECTADOS POR INCENDIOS UTILIZANDO PARÁMETROS DE VECINDAD EN LA SIERRA MADRE ORIENTAL, MÉXICO

open access: yesTropical and Subtropical Agroecosystems, 2012
<p>The objective of this research was to characterize the pattern of spatial structure of a <em>Pinus hartwegii</em> forest in the Sierra Madre Oriental, affected by a fire in 1998. Sampling was stratified by fire severity. Three fire severity classes were defined based on the degree of crown consumption (low, medium and high).
Diana Yemilet Avila Flores   +5 more
openaire   +1 more source

Five new species of the genera Heerz Marsh, Lissopsius Marsh and Ondigus Braet, Barbalho and van Achterberg (Braconidae, Doryctinae) from the Chamela-Cuixmala biosphere reserve in Jalisco, Mexico [PDF]

open access: yes, 2012
Five new species belonging to the poorly known Neotropical doryctine parasitoid wasps genera Heerz Marsh (H. ecmahla sp. n. and H. macrophthalma sp. n.), Lissopsius Marsh (L. pacificus sp. n. and L. jalisciensis sp.
Ceccarelli, Fadia Sara   +3 more
core   +4 more sources

Progression of aging in Mexico: the Mexican Health and Aging Study (MHAS) 2012.

open access: yesSalud Pública de México, 2015
OBJECTIVE To describe the third wave of the Mexican Health and Aging Study (MHAS), completed in 2012, and present preliminary results. MATERIALS AND METHODS Descriptive analyses by gender and age group of demographic and socioeconomic characteristics ...
R. Wong   +7 more
semanticscholar   +1 more source

Understanding Structural and Compositional Evolution during NMC Cathode Direct Recycling via Solid‐State NMR

open access: yesAdvanced Energy Materials, EarlyView.
Direct recycling end‐of‐life lithium‐ion batteries (LIB) to recover high‐value cathode materials such as LiNixMnyCozO2 (NMC) requires method development and detailed characterization. In this work, the unique capabilities of solid‐state NMR in characterizing changes in local ordering within NMC cathode materials during recycling and upcycling as well ...
Evelyna Wang   +10 more
wiley   +1 more source

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