Empresas: a cuidar el ambiente

En Colombia no existe un mecanismo de control para la responsabilidad empresarial ambiental, según explicó Sergio Tobón, director de Desarrollo Social de Proantioquia. Por ejemplo, el Área Metropolitana del Valle de Aburrá (AMVA), en articulación con la incubadora de empresas Creame hace consultorías ambientales en 1.941 empresas inscritas hasta ahora en el programa Emprendimiento Sostenible Metropolitano, que busca ir más allá del cumplimiento de la normativa ambiental básica. Ya se evidencian resultados dentro de empresas como el Grupo Familia, donde se implementó el día sin carro para cada empleado una vez a la semana. Según Susan Irwin, directora de Sostenibilidad de esa compañía, la medida ya ha logrado reducir 20 por ciento el flujo vehi­cular diario de la empresa. Mención de Argos, Bancolombia y Universidad de Medellín

ADN: An Information-Centric Networking Architecture for the Internet of Things

Forwarding data by name has been assumed to be a necessary aspect of an information-centric redesign of the current Internet architecture that makes content access, dissemination, and storage more efficient. The Named Data Networking (NDN) and Content-Centric Networking (CCNx) architectures are the leading examples of such an approach. However, forwarding data by name incurs storage and communication complexities that are orders of magnitude larger than solutions based on forwarding data using addresses. Furthermore, the specific algorithms used in NDN and CCNx have been shown to have a number of limitations. The Addressable Data Networking (ADN) architecture is introduced as an alternative to NDN and CCNx. ADN is particularly attractive for large-scale deployments of the Internet of Things (IoT), because it requires far less storage and processing in relaying nodes than NDN. ADN allows things and data to be denoted by names, just like NDN and CCNx do. However, instead of replacing the waist of the Internet with named-data forwarding, ADN uses an address-based forwarding plane and introduces an information plane that seamlessly maps names to addresses without the involvement of end-user applications. Simulation results illustrate the order of magnitude savings in complexity that can be attained with ADN compared to NDN.Comment: 10 page