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Evolution of the indoor biome
(CIENCIAS, 2015)
Few biologists have studied the evolutionary processes at work in indoor environments. Yet indoor environments comprise approximately 0.5% of ice-free land area – an area as large as the subtropical coniferous forest biome. ...
Can an LED-laser hybrid light help to decrease hydrogen peroxide concentration while maintaining effectiveness in teeth bleaching?
(CIENCIAS, 2015)
The aim of this study was to compare the bleaching efficacy of 35% hydrogen peroxide and 15% hydrogen peroxide with nitrogen-doped titanium dioxide catalysed by an LED-laser hybrid light. We studied 70 patients randomized ...
Un caso de queratitis micótica por Fusarium solani en Valdivia, Chile
(CIENCIAS, 2015)
Antecedentes: La queratitis micótica es una de las principales infecciones oculares. Se necesita un tratamiento específico que depende de la naturaleza del microorganismo infectante. Su pronóstico suele ser grave y depende ...
Seal, replacement or monitoring amalgam restorations with occlusal marginal defects? Results of a 10-year clinical trial
(CIENCIAS, 2015)
The aim of this prospective and blind clinical trial was to assess the effectiveness of sealing localized marginal defects of amalgam restoration that were initially scheduled to be replaced. A cohort of twenty six patients ...
Salivary Urease and ADS Enzymatic Activity as Endogenous Protection against Dental Caries in Children
(CIENCIAS, 2015)
The aim of this cross sectional study was to evaluate the ureolytic and arginolytic activities of saliva in children and associate them with their caries status. Study design: 65, 8 year old children, were randomly selected. ...
Longitudinal Results of a 10-year Clinical Trial of Repair of Amalgam Restorations
(CIENCIAS, 2015)
The aim of this prospective, blind, and randomized clinical trial was to assess the effectiveness of repair of localized clinical defects in amalgam restorations that were initially scheduled for replacement. A cohort of ...
Explosive style, magma degassing and evolution in the Chaimilla eruption, Villarrica volcano, Southern Andes
(CIENCIAS, 2015)
Villarrica (Chile) is a basaltic stratovolcano, currently in an open-conduit condition. It now has relatively frequent Strombolian and effusive eruptions, but it had large explosive eruptions in prehistoric times. Among ...
Infection and exposure to vector-borne pathogens in rural dogs and their ticks, Uganda
(CIENCIAS, 2015)
Background: In rural parts of Africa, dogs live in close association with humans and livestock, roam freely, and usually do not receive prophylactic measures. Thus, they are a source of infectious disease for humans and ...
Recent changes in total ice volume on Volcan Villarrica, Southern Chile
(CIENCIAS, 2015)
Results obtained by the first intensive airborne surveys carried out at Volcan Villarrica (39 degrees S) in Southern Chile, are presented. These campaigns included the use of a scanner laser system, for detecting the glacier ...
Characterization of bacterial, archaeal and eukaryote symbionts from antarctic sponges reveals a high diversity at a three-domain level and a particular signature for this ecosystem
(CIENCIAS, 2015)
Sponge-associated microbial communities include members from the three domains of life. In the case of bacteria, they are diverse, host specific and different from the surrounding seawater. However, little is known about ...