Results 61 to 70 of about 52,157 (206)

UNA NOTA SOBRE EL ESPACIO NULA

Universitas Scientiarum, 2003
El número nula fue definido por L. Lareo y O. Acevedo para representar la información que las cadenas de nucleótidos contienen. Se desea determinar algunas propiedades algebraicas sobre el conjunto nula,dotando a éste con una operación y estudiando las ...
M. Alvarado, F. Novoa, L. Rodríguez3
doaj  

Path Integral Description of a Semiclassical Su-Schrieffer-Heeger Model

, 2003
The electron motion along a chain is described by a continuum version of the Su-Schrieffer-Heeger Hamiltonian in which phonon fields and electronic coordinates are mapped onto the time scale.
A.J. Heeger, C.K. Chiang, D.K. Campbell, G.A. Farias, H. De Raedt, H. De Raedt, H. Takayama, H. Zheng, H.J. Schulz, J.E. Hirsch, J.E. Hirsch, K. Michielsen, M. Cococcioni, M. Zoli, M. Zoli, M. Zoli, Marco Zoli, N. Miyasaka, P.W. Anderson, R.C. Zeller, R.P. Feynman, S. Kivelson, S. Stafström, S. Tang, W.P. Su, Y. Ono   +25 more
core   +1 more source

Diversity and dominance in bird assemblages across habitats in the Ñeembucú wetlands complex

Biotropica, Volume 56, Issue 5, September 2024.
We analyzed how the composition of neotropical bird assemblages vary among habitats (riparian forests, natural grasslands, savannas, and anthropized sites) in the Ñeembucú Wetlands Complex, the largest wetland system in Paraguay. We found a high bird richness (209 species) that contrasted with a pattern of dominance by a small set of 16 species that ...
Fátima Ortiz, Patricia Salinas, Medes Mendoza, Griselda Zárate, Fátima Piris da Motta, Alberto Esquivel, Karina Núñez, Fernando Silla   +7 more
wiley   +1 more source

Paisaje: Imagen, entorno, ensamble [PDF]

Orbis Tertius, 2007
Centro de Estudios de Teoría y Crítica ...
openaire   +3 more sources

Intron retention in PI‐PLC γ1 mRNA as a key mechanism affecting MMP expression in human primary fibroblast‐like synovial cells

Cell Biochemistry and Function, Volume 42, Issue 5, July 2024.
Abstract The intron retention (IR) is a phenomenon utilized by cells to allow diverse fates at the same mRNA, leading to a different pattern of synthesis of the same protein. In this study, we analyzed the modulation of phosphoinositide‐specific phospholipase C (PI‐PLC) enzymes by Harpagophytum procumbens extract (HPE) in synoviocytes from joins of ...
Alessia Mariano, Sergio Ammendola, Arianna Migliorini, Martina Leopizzi, Domenico Raimondo, Anna Scotto d'Abusco   +5 more
wiley   +1 more source

Thermodynamics and Statistical Mechanics of dense granular media

, 2006
By detailed Molecular Dynamics and Monte Carlo simulations %of a realistic model we show that granular materials at rest can be described as thermodynamics systems.
Ciamarra, Massimo Pica, Coniglio, Antonio, Nicodemi, Mario   +2 more
core   +1 more source

On the Inner‐Core Differential‐Rotation (Un)Resolvability From Earthquake Doublets: The Traps of Data Selection

Geophysical Research Letters, Volume 51, Issue 6, 28 March 2024.
Abstract The phenomenon of differential rotation of the Earth's inner core relative to the mantle is a subject of interest in geodynamo modeling that has been validated by seismological observations, mainly via the earthquake‐doublets method. Although recent studies converge on the time‐varying differential rotation of the inner core relative to the ...
Hrvoje Tkalčić
wiley   +1 more source

Estructura y organización de los ensambles de roedores de un bosque de la Sierra Madre Occidental, Durango, México Structure and organization of rodent assembles of a forest of the Sierra Madre Occidental, Durango, Mexico

Revista Chilena de Historia Natural, 2009
La diversidad biológica de los bosques templados en la región de montaña denominada "Sierra Madre Occidental», México, es rica. Esta zona se encuentra en la Zona de Transición, un área biogeográficamente importante de Norteamérica caracterizada por una ...
ELIZABETH E ARAGÓN, ALFREDO GARZA, FERNANDO A CERVANTES   +2 more
doaj  

Morfología y funcionamiento del ensamble en construcción ligera

Informes de la Construccion, 1985
Se pretende en este artículo llamar la atención sobre la falta de normalización existente relativa a la representación y manejo del ensamble en la construcción ligera (morfología y funcionamiento) y sus consecuencias. También se propone una clasificación
J. Miguel Reyes González
doaj   +1 more source

Optimisation of laser welding of deep drawing steel for automotive applications by Machine Learning: A comparison of different techniques

Quality and Reliability Engineering International, Volume 40, Issue 1, Page 202-219, February 2024.
Abstract Laser welding is particularly relevant in the industry thanks to its simplicity, flexibility and final quality. The industry 4.0 and sustainable manufacturing framework gives massive attention to in situ and non‐destructive inspection methods to predict laser weld final quality.
Giacomo Maculotti, Gianfranco Genta, Maurizio Galetto   +2 more
wiley   +1 more source