Pinocembrin, acacetin, galanguin, izalpin, kaempferide, prenyletin and diarytheptane were isolated from propolis from Central Chile.

Marcela Hernández1,2, Rolando Vernal1, Timo Sorsa3,4, Taina Tervahartiala3,4, Päivi Mäntylä4 and Jorge Gamonal1 1Laboratory of Periodontal Biology, Faculty of Dentistry, University of Chile 2Department of Pathology, Faculty of Dentistry, University of Chile 3Department of Oral and Maxillofacial Diseases, Helsinki University Central Hospital 4Institute of Dentistry, University of Helsinki, Helsi...

Chagas disease is one of the most important vector-borne diseases in Latin America. The disease, caused by the flagellate protozoan Trypanosoma cruzi, is commonly transmitted to humans by Triatoma infestans in South America. Using mitochondrial DNA sequences, we assessed alternative biogeographic scenarios of dispersal of T. infestans using coalescence simulations. We also assessed phylogeograp...

Propolis is commercialized in Chile as an antimicrobial agent. It is obtained mainly from central and southern Chile, but is used for the same purposes regardless of its origin. To compare the antimicrobial effect, the total phenolic (TP), the total flavonoid (TF) content and the phenolic composition, 19 samples were collected in the main production centers in the Región del Maule, Chile. Sampl...

Current Account and External Financing, edited by Kevin Cowan, Sebastián Edwards, and Rodrigo O. Valdés, Santiago, Chile. © 2008 Central Bank of Chile. We thank Juan Echavarría, Nicolás Eyzaguirre, and Miguel Fuentes for useful comments; Kevin Cowan, Sebastián Edwards, and Rodrigo O. Valdés for proposing improvements in the current version; and Pamela Jervis for research assistance. The paper w...

The availability of water in Chile has shown signs decline recent decades. This is problematic because Chile’s economy depends on mining, forestry, and agricultural activities, all limited by the resources. In this study, daily, monthly annual flows 31 basins located arid–semiarid zones (29°12′ S–33°58′ S) humid–subhumid (34°43′ S–38°30′ were evaluated using Mann–Kendall trend test quantile–Ken...

The dryland areas of Central Chile are associated to Mediterranean climate. Under these conditions, water availability during crop growth is a crucial factor for crop productivity. Conservation tillage systems play an important role in this area, increasing soil water availability; however, crop yield responses can be variable. Soil management should be aimed at reducing water loss and promotin...

background: in chile, a new law introduced in march 2012 lowered the blood alcohol concentration (bac) limit for impaired drivers from 0.1% to 0.08% and the bac limit for driving under the influence of alcohol from 0.05% to 0.03%, but its effectiveness remains uncertain. the goal of this investigation was to evaluate the effects of this enactment on road traffic injuries and fatalities in chile...

G. Alvarado Barrios,1, ∗ J. C. Retamal,1, 2 E. Solano,3, 4, 5 and M. Sanz3, † 1Departamento de Fı́sica, Universidad de Santiago de Chile (USACH), Avenida Ecuador 3493, 9170124, Santiago, Chile 2Center for the Development of Nanoscience and Nanotechnology 9170124, Estación Central, Santiago, Chile 3Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bil...

F. Albarrán-Arriagada,1, ∗ J. C. Retamal,1, 2 E. Solano,3, 4, 5 and L. Lamata3 1Departamento de Fı́sica, Universidad de Santiago de Chile (USACH), Avenida Ecuador 3493, 9170124, Santiago, Chile 2Center for the Development of Nanoscience and Nanotechnology 9170124, Estación Central, Santiago, Chile 3Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bi...