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BACKGROUND Leishmania is transmitted by Phlebotominae insects that maintain the enzootic cycle by circulating between sylvatic and domestic mammals; humans enter the cycles as accidental hosts due to the vector's search for blood source. In Colombia, leishmaniasis is an endemic disease and 95% of all cases are cutaneous (CL), these cases have been reported(More)
Despite an incredible amount of progress toward understanding respiratory rhythm generation through the use of reduced mathematical models, controversy exists concerning the role of various ionic conductances in generating bursting behavior. Moreover, the dynamical behavior of these model neurons has not been examined. Here, we have used two well described(More)
Rhodnius prolixus, a blood-sucking triatomine with domiciliary anthropophilic habits, is the main vector of Chagas disease. The current paradigm of Trypanosoma cruzi transmission in Columbia includes a sylvatic and domiciliary cycle co-existing with domestic and sylvatic populations of reservoirs. The aim of this study is to evaluate the population(More)
A physically based scalable model for MOS Varactors is presented. The model includes a PSP-based analytical surface potential charge formulation, MOS varactor specific gate current models, and physical geometry and process parameter based parasitic modeling. Key device performances of capacitance and quality factor Q are validated over voltage, frequency,(More)
Chagas disease is the most important vector-borne disease in Latin America and Rhodnius prolixus is the main vector in Colombia. Control strategies in this region have shown poor outcomes due to the insect’s ability to disperse between the sylvatic and the domestic habitat. Because insect migration to houses is responsible to sustain contact rates between(More)
Trypanosoma cruzi, the agent responsible for Chagas disease, is widely distributed in the Americas in association to insect vectors and animal reservoirs. Triatomines are common vectors of Chagas disease and they vary in their distribution and affinity to human or sylvatic environments. Thus, control programs that include house spraying have been successful(More)
The effect of transport infrastructure on walking is of interest to researchers because it provides an opportunity, from the public policy point of view, to increase physical activity (PA). We use an agent based model (ABM) to examine the effect of transport infrastructure on walking. Particular relevance is given to assess the effect of the growth of the(More)
Transport systems can play an important role in increasing physical activity (PA). Bogotá has been recognized for its bus rapid transit (BRT) system, TransMilenio (TM). To date, BRTs have been implemented in over 160 cities worldwide. The aim of this study was to assess the association between PA and the use of TM among adults in Bogotá. The study consists(More)
An epidemiological network contains all the organisms involved (types) in the transmission of a parasite. The nodes of the network represent reservoirs, hosts, and vectors, while the links between the nodes represent the strength and direction of parasite movement. Networks that contain humans are of special interest because they are of concern to public(More)
Later rather than sooner , one of the versions would function, and be selected for production. As these products are plugged into larger scale integrated chips, the high development cost and cycles associated with these technologies make it difficult to survive using this shotgun approach. When microwave circuits enter the mixed-signal world, they must(More)