RESUMEN
Nanocelluloses have gained significant attention in recent years due to their singular properties (good biocompatibility, high optical transparency and mechanical strength, large specific surface area, and good film-forming ability) and wide-ranging applications (paper, food packaging, textiles, electronics, and biomedical). This article is a comprehensive review of the applications of nanocelluloses (cellulose nanocrystals, cellulose nanofibrils, and bacterial nanocellulose) in the conservation and restoration of historical paper documents, including their preparation methods and main properties. The novelty lies in the information collected about nanocelluloses as renewable, environmentally friendly, and sustainable materials in the field of cultural heritage preservation as an alternative to conventional methods. Several studies have demonstrated that nanocelluloses, with or without other particles, may impart to the paper documents excellent optical and mechanical properties, very good stability against temperature and humidity aging, higher antibacterial and antifungal activity, high protection from UV light, and may be applied without requiring additional adhesive.
RESUMEN
The populational fluctuation of flies of the genera Willistoniella Mik and Ropalomera Wiedemann (Diptera: Ropalomeridae) was studied using McPhail traps, with molasses (10%) as attractive bait, in two places in a mixed orchard of the families Myrtaceae, Sapotaceae, Anacardiaceae, Apocinaceaeand Gutiferae, during 13 months (december of 1996 to december of 1997) in the Central Amazonia, Brazil.The total of 1,148 Willistoniella flies and 99 Ropalomera flies were captured. The abundance observed in the genera was larger during the dry months, however there was no correlation between flies caught in the traps and the rainfall in the two places.
A flutuação populacional de moscas dos gêneros Willistoniella Mik e RopalomeraWiedemann (Diptera: Ropalomeridae) foi estudada utilizando-se armadilhas McPhail, com melaço de cana (10%) como isca, em dois lugares com pomar misto, com frutíferas das famílias Myrtaceae, Sapotaceae, Anacardiaceae, Apocinaceae e Gutiferae, durante 13 meses (dezembro de 1996 a dezembrode 1997) na Amazônia Central. Foram capturadas 1.148 moscas do gênero Willistoniella e 99 moscas de Ropalomera. A abundância observada nos gêneros foi maior durante os meses secos, entretanto não houve correlação entre o número de moscas capturadas nas armadilhas com a precipitação nos dois locais amostrados.
