Results 11 to 20 of about 54,574 (273)

First E region observations of mesoscale neutral wind interaction with auroral arcs [PDF]

, 2010
We report the first observations of E region neutral wind fields and their interaction with auroral arcs at mesoscale spatial resolution during geomagnetically quiet conditions at Mawson, Antarctica.
Aikio, Anderson, Armstrong, Arnoldy, Aruliah, Aruliah, Aruliah, Aruliah, B. A. Carter, Brekke, Burch, C. Anderson, Chisham, Cierpka, Codrescu, Conde, Conde, Conde, Crickmore, Currie, Davies, del Pozo, Deng, Doe, Doe, Egeland, Friis-Christensen, Fuller-Rowell, Galperin, Greenwald, Heelis, Hernandez, Holmes, Iijima, Iijima, Kamide, Killeen, Killeen, Killeen, Kirkwood, Knudsen, Kosch, Kosch, Kosch, Kosch, Kosch, Kosch, Kosch, Kosch, Larsen, Lewis, M. Conde, M. J. Kosch, Makarevich, McCormac, Millward, Nozawa, Opgenoorth, P. L. Dyson, Price, Price, R. A. D. Fiori, R. A. Makarevich, Rees, Rees, Rees, Ruohoniemi, Schlegel, Schunk, Senior, Senior, Senior, Störmer, T. Davies, Thayer, Tsunoda, Vickrey, Wang, Weimer, Wescott, Zmuda   +80 more
core   +1 more source

Spatial distribution structure and volume of Colombian black oak forest (Colombobalanus excelsa (Lozano, Hern. Cam. & Henao, J.E.) Nixon & Crepet) National Natural Park Cueva de los Guácharos

Colombia Forestal, 2012
The spatial distribution of Colombobalanus excelsa forests in the Cueva de los Guácharos Natural National Park and its buffer zone was determined.
David Eduardo Dávila, José Franco Alvis, Roman Ospina   +2 more
doaj   +1 more source

A plasma vortex revisited: The importance of including ionospheric conductivity measurements [PDF]

, 2004
In an earlier paper [Kosch et al., 1998], simultaneous all-sky TV imager and Scandinavian Twin Auroral Radar Experiment (STARE) observations of an ionospheric plasma vortex located poleward of an auroral arc were presented.
Amm, O., Kosch, Mike J., Scourfield, M.W.J.   +2 more
core   +1 more source

La articulación del territorio de una ciudad romana situada en la Meseta Sur de la Península Ibérica. "Ager Consaburensis et finis Carpetaniae" (Consuegra, Toledo)

Cuadernos de Arqueología de la Universidad de Navarra, 2018
Pocas civilizaciones como la romana tuvieron mayor determinación y capacidad a la hora de transformar el paisaje rural. En el caso de la cada vez más estudiada Meseta Sur de la Península Ibérica, en la antigua región prerromana de la Carpetania, la ...
Juan Francisco Palencia García
doaj   +1 more source

High time resolution measurements of the thermosphere from Fabry-Perot Interferometer measurements of atomic oxygen [PDF]

, 2007
Recent advances in the performance of CCD detectors have enabled a high time resolution study of the high latitude upper thermosphere with Fabry-Perot Interferometers(FPIs) to be performed.
E. A. K. Ford, E. A. K. Ford, A. L. Aruliah, E. M. Griffin, I. McWhirter   +4 more
core   +3 more sources

Estimación de biomasa y carbono almacenado en bosques comunitarios de la región Frailesca de Chiapas, México

Revista Mexicana de Ciencias Forestales, 2017
Con el objetivo de estimar la biomasa y el carbono acumulado en bosques de pino (Pinus maximinoii), encino (Quercus rugosa), roble (Quercus robur) y ocote (Pinus patula), en 1 ejidos de la región Frailesca de Chiapa, se seleccionaron 22 parcelas de 500 ...
Luis Alfredo Rodríguez-Larramendi, Francisco Guevara-Hernández, Luis Reyes-Muro, Jesús Ovando-Cruz, José Nahed-Toral, Miguel Prado-López, Rady Alejandra Campos Saldaña   +6 more
doaj   +1 more source

Latitudinal variation of foF2 hysteresis of solar cycles 20, 21 and 22 and its application to the analysis of long-term trends [PDF]

, 2008
F2 monthly median values for equinoctial months of solar cycles 20, 21 and 22, were analyzed for 37 worldwide stations. For each solar cycle and for a given , the difference between F2 in the falling branch of the cycle and the corresponding value of the
Elias, Ana Georgina, Ortiz de Adler, Nieves del Carmen   +1 more
core   +1 more source

ESTUDIO TÉCNICO DE DOS ESPECIES DE ROBLE (QUERCUS SP.) CRECIENDO EN COSTA RICA

Ingeniería, 2011
De la madera de roble (género Quercus), se conoce su fortaleza desde el punto de vista mecánico y su bonita apariencia; sin embargo, se le atribuyen serios problemas de secado que limitan en alto grado su comercialización.
Flor de María Muñoz Umaña, Berny Valverde C.   +1 more
doaj   +1 more source

Clustering of Mycobacterium tuberculosis Cases in Acapulco: Spoligotyping and Risk Factors

Clinical and Developmental Immunology, 2011
Recurrence and reinfection of tuberculosis have quite different implications for prevention. We identified 267 spoligotypes of Mycobacterium tuberculosis from consecutive tuberculosis patients in Acapulco, Mexico, to assess the level of clustering and ...
Elizabeth Nava-Aguilera, Yolanda López-Vidal, Eva Harris, Arcadio Morales-Pérez, Steven Mitchell, Miguel Flores-Moreno, Ascencio Villegas-Arrizón, José Legorreta-Soberanis, Robert Ledogar, Neil Andersson   +9 more
doaj   +1 more source

DEGRADACIÓN DE LA MADERA DE ROBLE (QUERCUS SPP.) IN VIVO E IN VITRO IN VIVO AND IN VITRO WOOD DECAY OF OAK (QUERCUS SPP.)

Polibotánica, 2019
La descomposición de los restos de madera en los bosques ocasiona un flujo considerable de carbono.  Las tasas de descomposición varían en zonas templadas y tropicales y de acuerdo al tipo de madera y los hongos que están involucrados en este proceso ...
Julieta Carranza Velazquez, Jose Francisco DiStefano, Walter Marin, Milagro Mata   +3 more
doaj   +1 more source