RESUMO
The number of reports of tick parasitism in amphibians and reptiles has increased over the past few years, including new host and location records for Amblyomma rotundatum and Amblyomma dissimile. However, knowledge of the geographical distribution remains incomplete, and in many regions of Brazil, the presence of these vectors has not been investigated. Several candidate models were built using a correlative maximum entropy approach, and best-fitting models were selected based on statistical significance, predictive ability, and complexity based on current climatic trends and future projected climate changes. Final models showed a good ability to discriminate A. rotundatum and A. dissimile current and future potential distributions. The entire country had higher predicted suitability for A. rotundatum while A. dissimile was mainly restricted to the Amazon and Pantanal biomes. A. rotundatum is a species with enormous potential for dissemination in the next decades, potentially through the legal and illegal transport of reptiles and amphibians. The proposed model is useful for targeting surveillance efforts increasing the efficiency and accuracy of future ecological research and tick management efforts.
RESUMO
El rápido aumento en la cantidad de adaptaciones de lentes de hidrogel de silicona, sus características físico-químicas y las complicaciones que estos pueden presentar en cuanto a confort y tolerancia, requieren del conocimiento de los diferentes factores que puedan ocasionarlas. El objeto de este artículo es revisar los aspectos referidos a los depósitos en este tipo de lentes, que no solo afectan la vida útil de estos, sino su comportamiento clínico. Los diferentes materiales, esto es, los polímeros que los constituyen, contenido acuoso, hidrofobicidad/hidrofilicidad de la superficie, y tratamientos de superficie, son algunos de los factores relativos a los lentes de contacto. El peso molecular, cargas eléctricas, polaridad e hidrofobicidad/hidrofilicidad, son características específicas de cada uno de los componentes del film lagrimal. De las interacciones entre estos y los lentes de contacto depende la adherencia y características de los depósitos, con las consecuentes implicaciones clínicas.
The fast increase in the amount of silicone hydrogel contact lens adaptations, as well as their physical-chemical characteristics and possible complications in terms of comfort and tolerance, require the knowledge of the different factors that may cause them. The purpose of this articleis to review the aspects regarding the deposits in this type of lenses that affect not only their life utility but also their clinical behavior. The different materials, that is, the polymers that they are made of, as well as the water content, hydrophobicity/hydrophilicity of the surface and surface treatments are some of the factors related to contact lenses. Molecular weight, electric charges,polarity and hydrophobicity/hydrophilicity are specific characteristics of each tear film component.Their interactions with contact lenses influence the adherence and characteristics of the deposits,with the subsequent clinical implications.
