Results 71 to 80 of about 46,717 (195)

Spatial variation in coevolutionary dynamics [PDF]

Evolutionary Ecology, 1991
Computer simulations of coevolutionary dynamics between two hosts and two parasites show that extensive spatial variation in polymorphism can be maintained among environmentally identical patches. Spatial variation can be maintained under frequent migration when the dynamics within patches are locally unstable, and the cycles in host and parasite ...
openaire   +1 more source

Spectral Diagnostics of Active Prominences

, 2007
Active prominences exhibit plasma motions, resulting in difficulties with the interpretation of spectroscopic observations. These solar features being strongly influenced by the radiation coming from the solar disk, Doppler dimming or brightening effects
Gouttebroze, Pierre, Labrosse, Nicolas, Vial, Jean-Claude   +2 more
core  

New firm performance and territorial driving forces [PDF]

The article analyses recent approaches on entry and post-entry performance by new firms, with particular focus on its applicability to small manufacturing firms recently borned in Argentina. The analysis is based on a sample of small firms created in the
Andrea Castellano, Gustavo Burachik, Raul Dichiara, Silvia Gorenstein, Valentina Viego   +4 more
core   +3 more sources

The universal red-giant oscillation pattern; an automated determination with CoRoT data

, 2010
The CoRoT and Kepler satellites have provided thousands of red-giant oscillation spectra. The analysis of these spectra requires efficient methods for identifying all eigenmode parameters.
Auvergne, M., Baglin, A., Barban, C., Baudin, F., Belkacem, K., Catala, C., DeRidder, J., Elsworth, Y., Goupil, M. J., Hekker, S., Kallinger, T., Michel, E., Mosser, B., Pinheiro, F. J. G., Samadi, R.   +14 more
core   +3 more sources

FIRBACK Source Counts and Cosmological Implications [PDF]

, 2000
FIRBACK is a one of the deepest surveys performed at 170 microns with ISOPHOT onboard ISO, and is aimed at the study of cosmic far infrared background sources. About 300 galaxies are detected in an area of four square degrees, and source counts present a
Dole, Herve, Gispert, Richard, Lagache, Guilaine, Puget, Jean-Loup, Aussel, H., Bouchet, F. R., Ciliegi, P., Clements, D. L., Cesarsky, C. J., Desert, F. X., Elbaz, D., Franceschini, A., Guiderdoni, B., Harwit, M., Laureijs, R., Lemke, D., McMahon, R., Moorwood, A. F. M., Oliver, S., Reach, W. T., Rowan-Robinson, M., Stickel, M.   +21 more
core   +5 more sources

Evaluating the Temporal and the Spatial Heterogeneity of the European Convergence Process, 1980-1999 [PDF]

In this paper, we suggest a general framework that allows testing simultaneously for temporal heterogeneity, spatial heterogeneity and spatial autocorrelation in b-convergence models.
Julie LE GALLO (IERSO, IFReDE-GRES), Sandy DALL’ERBA (REAL, University of Illinois at Urbana-Champaign)   +1 more
core  

Coupling Between the Thermosphere and the Stratosphere: the Role of Nitric Oxide [PDF]

, 1984
In order to understand the lower ionosphere and its probable control by dynamical processes, the behavior of nitric oxide below 100 km was investigated. A two dimensional model with coupled chemical and dynamical processes was constructed.
Brasseur, G.
core   +1 more source

The INTEGRAL/SPI response and the Crab observations [PDF]

, 2004
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii) in-flight calibration of the instrumental response and ...
Attie, D., Bouchet, L., Connell, P., Cordier, B., Dubath, P., Roques, J. -P., Schanne, S., Shrader, C. R., Sizun, P., Skinner, G. K., Sturner, S. J.   +10 more
core   +3 more sources

The Spatial Dimension of Segregation: A Case Study in Four French Urban Areas, 1990-1999 [PDF]

The aim of this paper is to analyze the intra-urban spatial segregation in terms of socio-professional categories in four French urban areas: Paris, Lyon, Bordeaux and Dijon. Two questions are investigated. First, how does spatial segregation vary across
Frédéric GASCHET (IERSO, IFReDE-GRES), Julie LE GALLO (IERSO, IFReDE-GRES)   +1 more
core  

Rainfall Variability along the Southern Flank of the Bambouto Mountain(West-Cameroon) [PDF]

, 2009
This paper presents the rainfall variability along the southern flank of the Bambouto mountain. Data were collected from rain gauges, while spatial variability was estimated through daily recorded data. Monthly and annual data were used to draw isohyetes
Kengni, Lucas, Lucas, Yves, Pamo Tedonkeng, Etienne, Probst, Jean-Luc, Tankou, Christopher Mubeteneh, Tekoudjou, Hernes, Tematio, Paul   +6 more
core   +1 more source