Results 81 to 90 of about 2,851,649 (388)
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
Gold‐Catalyzed Synthesis of Fluorenones via Intramolecular C–H Arylation
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]
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]
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
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
<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]
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.
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
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