BACKGROUND During the last decade Revista Médica de Chile increased its visibility, measured on citations and impact factor. AIM To perform a scientometric analysis to assess the performance of Revista Médica de Chile. MATERIAL AND METHODS Thomson's-ISI Web of Science and Journal Citation Reports QCR) were consulted for performance indicators of Revista Médica de Chile and Latin American jo...

BACKGROUND During the last decade, new Neogene fossil assemblages from South America have revealed important clues about the evolution of seabird faunas in one of the major upwelling systems of the world: the Humboldt Current. However, most of this record comes from arid Northern Chile and Southern Peru and, in consequence, our knowledge of the evolutionary history of seabirds in the temperate ...

I Chapman University, One University Drive, Orange, CA 92866, USA 'NASA Goddard Space Flight Center, Greenbelt, MD 20771 , USA ' Institute of Applied Geophysics, Roslokinskaya sIr., 9, Moscow, 129128, Russia 'Chiba University, Yayoi 1-33, Inage, Chiba, 263-8522, Japan ' LPC2E1CNRS Orleans, France, 6Institute of Space Science, National Central University, Chung-Li 320, Taiwan 'Dept Geosciences, ...

Establishing the ancestral ranges of distribution of a monophyletic clade, called the ancestral area, is one of the central objectives of historical biogeography. In this study, I used three common methodologies to establish the ancestral area of an important clade of Neotropical lizards, the family Liolaemidae. The methods used were: Fitch optimization, Weighted Ancestral Area Analysis and Dis...

Manufacturing plants are commonly organized in cells containing machines that process different parts of a given product. The Manufacturing Cell Design Problem (MCDP) aims at efficiently organizing the machines into cells in order to increase productivity by minimizing the inter-cell moves of parts. In this paper, we present a new approach based on Invasive Weed Optimization (IWO) for solving s...

Increasing water use and droughts, along with climate variability and land use change, have seriously altered vegetation growth patterns and ecosystem response in several regions alongside the Andes Mountains. Thirty years of the new generation biweekly normalized difference vegetation index (NDVI3g) time series data show significant land cover specific trends and variability in annual producti...

Araucnephia Wygodzinsky & Coscarón is a Neotropical black fly genus in which only one species from Central Chile is known. Another species has now been found in Corrientes province on the eastern side of the Iberá tropical swamps of Argentina, on the western border of the mountainous region of southern Brazil. This new species, A. iberaensis, is herein described and illustrated and information ...

Alstroemeria L. (Alstroemeriaceae) is an American genus of monocots with two principal distribution centers in Chile and Brazil. In Chile, it is represented by about 32 species, most of them in central Chile, an area known for its high level of endemism. The "complex" Alstroemeriahookeri is endemic to Chile, where it is distributed from the Coquimbo to the Bío-Bío Region. We analyzed the karyot...