Results 21 to 30 of about 2,760,050 (388)
Bianchi Cosmologies: New Variables and a Hidden Supersymmetry [PDF]
, 1993 We find a supersymmetrization of the Bianchi IX cosmology in terms of Ashtekar's new variables. This provides a framework for connecting the recent results of Graham and those of Ryan and Moncrief for quantum states of this model.
Apartado Postal E +4 more
core +4 more sources
Análisis bioeconómico diario en una pesquerÃa artesanal multiespecÃfica de Yucatán, México.
Aquatic Living Resources, 2001 We describe daily allocation patterns of fishing effort (hookah diving) of the artisanal fleet in San Felipe, Yucatan (Mexico), using catch, fishing effort, catch per unit of effort, variable costs, quasi rent and distance from port to four fishing grounds as performance variables.
José Luis Cabrera, Omar Defeo
openaire +2 more sources
Origins of the 2009 H1N1 influenza pandemic in swine in Mexico
eLife, 2016 Asia is considered an important source of influenza A virus (IAV) pandemics, owing to large, diverse viral reservoirs in poultry and swine. However, the zoonotic origins of the 2009 A/H1N1 influenza pandemic virus (pdmH1N1) remain unclear, due to ...
I. Mena +13 more
semanticscholar +1 more source
Early Cretaceous absolute geomagnetic paleointensities from Córdoba province (Argentina) [PDF]
, 2006 We present here new paleointensity and geochronology results from Early Cretaceous volcanic rocks of Sierra Chica de Cordoba (Argentina). The new K-Ar isotopic ages of 5 samples range from 136 to 122 Ma.
Alva-Valdivia, Luis M. +5 more
core +1 more source
Scientific Data, 2015 A data set of observed daily precipitation, maximum and minimum temperature, gridded to a 1/16° (~6 km) resolution, is described that spans the entire country of Mexico, the conterminous U.S.
B. Livneh +7 more
semanticscholar +1 more source
XVIII Congreso Mexicano de Botánica, Certamen de Tesis de temas botánicos
Botanical Sciences, 2011 -
Sociedad Botánica de México
doaj +1 more source
European Scientific Journal, ESJ, 2021 El objetivo de esta investigación fue identificar las estrategias de mercadotecnia utilizadas por las MIPYMEs durante la pandemia Covid-19 en Ciudad Juárez, Chihuahua. Para ello, se utilizó una metodologÃa cuantitativa, de diseño no experimental transeccional descriptivo.
Martín Joel Durán Ortiz +2 more
openaire +2 more sources
JMIR Public Health and Surveillance, 2019 Background HIV disproportionally affects key populations including men who have sex with men (MSM). HIV prevalence among MSM varies from 17% in Brazil and Mexico to 13% in Peru, whereas it is below 0.5% for the general population in each country.
T. Torres +15 more
semanticscholar +1 more source
Solvability of the G_2 Integrable System
, 1998 It is shown that the 3-body trigonometric G_2 integrable system is exactly-solvable. If the configuration space is parametrized by certain symmetric functions of the coordinates then, for arbitrary values of the coupling constants, the Hamiltonian can be
Antonio Capella +3 more
core +2 more sources