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1.
Sensors (Basel) ; 18(9)2018 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-30235844

RESUMO

We integrate, for the first time in the literature, the following ingredients to deal with emerging dynamic spectrum management (DSM) problem in heterogeneous wireless sensors and actuators networks (WSANs), Internet of things (IoT) and Wi-Fi: (i) named-based routing to provide provenance and location-independent access to control plane; (ii) temporary storage of control data for efficient and cohesive control dissemination, as well as asynchronous communication between software-controllers and devices; (iii) contract-based control to improve trust-ability of actions; (iv) service-defined configuration of wireless devices, approximating their configurations to real services needs. The work is implemented using NovaGenesis architecture and a proof-of-concept is evaluated in a real scenario, demonstrating our approach to automate radio frequency channel optimization in Wi-Fi and IEEE 802.15.4 networks in the 2.4 GHz bands. An integrated cognitive radio system provides the dual-mode best channel indications for novel DSM services in NovaGenesis. By reconfiguring Wi-Fi/IoT devices to best channels, the proposed solution more than doubles the network throughput, when compared to the case of mutual interference. Therefore, environments equipped with the proposal provide enhanced performance to their users.

2.
Artigo em Espanhol | LILACS | ID: lil-261695

RESUMO

En este estudio se analizan 496 biopsias de endometrio realizadas en el Hospital Dr. Miguel Pérez Carreño entre el 1 de Enero y el 31 de Diciembre de 1994, procesadas por el servicio de Anatomía Patológica de ese mismo centro. Se encontró que la edad promedio de las pacientes fue 44.6 años, no estando reportada en el 13 por ciento de la solicitudes; el diagnóstico clínico más frecuente fue leiomiomatosis uterina en el 43 por ciento de los casos. Un total del 25 por ciento de los especímenes era inapropiado o insuficiente para diagnóstico histológico y un 13 por ciento fue tomado en los primeros 19 días del ciclo. EL diagnóstico histológico más común fue endométrio secretor acorde al ciclo mestrual


Assuntos
Humanos , Feminino , Biópsia , Endométrio/anatomia & histologia , Endométrio/patologia , Útero/patologia
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