Zobrazeno 1 - 10
of 25
pro vyhledávání: '"S. A. Barra"'
The Javelin sand Boa Eryx jaculus is a snake little known from an eco-ethological point of view. Here, some aspects of its phenology are described for the first time. 229 observations were collected in Sicily, with the aim of describing the annual ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f8f3b021acf8d460ab8f3ff12672d47
https://hdl.handle.net/10447/595758
https://hdl.handle.net/10447/595758
Autor:
O. S. Vallejos-Barra, R. M. Pizarro-Tapia, M. A. Vásquez Sandoval, F. J. Balocchi-Contreras, C. M. Morales-Calderón, L. León-Gutiérrez, L. P. Vega-Torres
Publikováno v:
Revista Chapingo: Serie Ciencias Forestales y del Ambiente, Vol 16, Iss 2, Pp 207-214 (2010)
En este estudio se comparó el comportamiento de un bosque secundario de Roble-Hualo, donde las especies predominantes son Nothofagus obliqua y Nothofagus glauca y una plantación de Pinus radiata D. Don de 12 años de edad, en el proceso precipitaci
Externí odkaz:
https://doaj.org/article/b611d1f3e8e14e68a7a45a7c7f615757
Publikováno v:
Revista Chapingo: Serie Ciencias Forestales y del Ambiente, Vol 15, Iss 2, Pp 101-108 (2009)
Se generó un conjunto de procedimientos de cálculo que permitieran estimar los tres parámetros de la función de densidad de probabilidad Weibull 3P. Además, se estimaron y evaluaron los parámetros óptimos de esta función mediante los procedim
Externí odkaz:
https://doaj.org/article/e10c8b4a28904730a1cf9eaa7205b2ae
Autor:
O. S. Vallejos-Barra
Publikováno v:
Revista Chapingo: Serie Ciencias Forestales y del Ambiente, Vol 13, Iss 1, Pp 29-32 (2007)
La variable diámetro a la altura del pecho, medido a 1.3 m desde el suelo (DAP) es lognormal si log(DAP-θ) se distribuye normalmente. Para simplificar el ajuste de esta función de densidad de probabilidad (fdp) se supone que el parámetro de loca
Externí odkaz:
https://doaj.org/article/133a758f9e364c48a6315935bb410558
Autor:
Carolina Morales-Calderón, M. A. Vásquez Sandoval, Roberto Pizarro-Tapia, L. León-Gutiérrez, O. S. Vallejos-Barra, L. P. Vega-Torres, F. J. Balocchi-Contreras
Publikováno v:
Revista Chapingo: Serie Ciencias Forestales y del Ambiente, Vol 16, Iss 2, Pp 207-214 (2010)
En este estudio se comparó el comportamiento de un bosque secundario de Roble-Hualo, donde las especies predominantes son Nothofagus obliqua y Nothofagus glauca y una plantación de Pinus radiata D. Don de 12 años de edad, en el proceso precipitaci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e47d8fa6c9928b26cd1e1c455234b47e
http://www.redalyc.org/articulo.oa?id=62915867010
http://www.redalyc.org/articulo.oa?id=62915867010
Autor:
Michel Vervloet, S. Martrenchard-Barra, D. Solgadi, C. Dedonder-Lardeux, Gilles Grégoire, Christophe Jouvet, I. Dimicoli
Publikováno v:
Chemical Physics Letters. 310:173-179
The proton-transfer reaction in the ground state of phenol–ammonia clusters [PhOH(NH 3 ) n ] has been investigated by single-photon ionization spectroscopy using synchrotron radiation and a photoelectron photoion coincidence detection technique. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::893e07e74b9f0826c159cef37219baac
https://doi.org/10.1016/s0009-2614(99)00764-2
https://doi.org/10.1016/s0009-2614(99)00764-2
Autor:
Ko-ichi Sugawara, C. Dedonder-Lardeux, Christophe Jouvet, S. Martrenchard-Barra, H Takeo, D. Solgadi, J Miyawaki
Publikováno v:
Chemical Physics Letters. 302:354-358
The electronic spectrum of the silver–ammonia 1:1 complex AgNH3 has been observed for the first time. The complex was formed using laser ablation and cooled in a free jet expansion, and its spectrum was observed through resonantly enhanced multipho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::157d573c84dbef615a180b1f3c7a3006
https://doi.org/10.1016/s0009-2614(99)00088-3
https://doi.org/10.1016/s0009-2614(99)00088-3
Autor:
D. Solgadi, J. M. Mestdagh, Christophe Jouvet, Claude Dedonder-Lardeux, M. Berdah, J. P. Visticot, S. Martrenchard-Barra, N. Auby
Publikováno v:
The European Physical Journal D - Atomic, Molecular and Optical Physics. 4:291-302
The photodissociation of a chlorine molecule in the environment of a xenon cluster has been studied experimentally using the real time pump and probe technique through the formation of an XeCl reaction product. The photodissociating system is probed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf52ef36da1cd772614d43602e5e17cc
https://doi.org/10.1007/s100530050212
https://doi.org/10.1007/s100530050212
Publikováno v:
Chemical Physics Letters. 264:596-604
Nucleophilic substitution reactions have been studied in halobenzene cations with ammonia. In ionic 1-1 complexes, three behaviours can be observed, depending on the nature of the halogen atom X (F, Cl, Br or I): (i) no reactivity, (ii) X elimination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0497760f0320819e493f99a1a5ce4352
https://doi.org/10.1016/s0009-2614(96)01381-4
https://doi.org/10.1016/s0009-2614(96)01381-4
Autor:
D. Solgadi, Claude Dedonder-Lardeux, F. Talbot, S. Martrenchard-Barra, Michel Vervloet, I. Dimicoli, Christophe Jouvet, M. Richard-Viard
Publikováno v:
Chemical Physics. 212:371-380
The ionization of allyl bromide-ammonia clusters produced in a supersonic expansion leads to an intracluster nucleophilic substitution reaction: C3H5Br+ − NH3 → C3H5NH3+ + Br. Larger clusters also react leading to ammonia solvated C3H5NH3+ cluste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2c487183e8cc21a25f87ba891c7490d
https://doi.org/10.1016/s0301-0104(96)00199-1
https://doi.org/10.1016/s0301-0104(96)00199-1