Territorial analysis of Aedes aegypti distribution in two Colombian cities: a chorematic and ecosystem approach

A territorial analysis of Aedes aegypti density was conducted in two Colombian cities using an ecosystem and chorematic approach. Entomological and behavioral data (by cluster) and information on the urban context were used to analyze the relationship between territorial structures and dynamics and vector density. The results were represented in graphic (chorematic) models. Arauca showed higher vector density than Armenia. Higher density was related to unplanned urbanization, flood-prone areas, low socioeconomic strata, household water tanks, higher temperature, and recall of control measures for adult mosquitos. Zones with low density indices coincided with diverse socioeconomic, ecological, and behavioral conditions. The study found a relationship between territorial structures and dynamics and vector density in both Arauca and Armenia, where the interaction between ecological and social systems shape areas with high and low A. aegypti density

Corporate Governance mechanisms as drivers that enhance the credibility and usefulness of CSR disclosure

The aim of this paper is to examine what kinds of CG mechanisms (institutional, firm or group level) are driving getting an Assurance or a GRI application level, like CSR disclosure decisions linked with credibility and usefulness of the information disclosed, in the particular context of energy companies. Previous evidence is scarce and does not jointly consider all levels of CG mechanisms. Our sample is composed by 176 energy companies worldwide which currently report about CSR through a sustainability report. On the basis of our findings, we could support the idea that the credibility of the CSR report of the utilities companies will be greater if the company listed in a Relation-Based country has an Assurance report. In addition, those companies that have a concentrated ownership and the fewer insiders sitting in the BoD present more probabilities of having an Assurance. Moreover, the usefulness of the CSR information provided by this kind of firms will be higher, the greater the efficiency of the BoD will be. The enhancement of the credibility and the usefulness of the information reported is essential for companies involved in this sector due to the frequent claim of window-dressing behaviours