0000000000433019

AUTHOR

Manuel Herrera

Optimal placement of quality sensors in water distribution systems

Water supply infrastructures are crucial for the sustainable existence and development of modern cities [1,2]. Water distribution systems (WDSs) are complex structures formed by many elements designed and erected to transport water of sufficient quality from water sources to consumers. The amount of the above elements, which can reach up to tens of thousands of links and junctions, their frequently wide spatial dispersion and the WDS characteristic of being very dynamic structures make the management of real WDSs a complex problem [3-5]. Moreover, although the main objective is to supply water in the quantity and quality required, other requirements are essential, namely maintaining conditi…

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Clinical behavior of children with infantile cerebral palsy after ozone therapy

Objective.
 The aim of this study was to determine the usefulness of ozone therapy in the treatment of Infantile Cerebral Palsy (ICP). 
 
 Patients and methods.
 A non-controlled clinical assay was made in the Ozone Research Center (CIO), Havana, Cuba from January 2013 to January 2014. The sample was constituted by patients remitted to pediatrics consultation of CIO, to whom inclusion and exclusion criteria were applied. The study group involved 45 patients, from 1 month of birth to 8 years, with cerebral palsy of hypoxic-ischemic cause. The evaluation criteria were: evolution of the motor disorder according to the Gross Motor Function Classification System (GMFCS) scale…

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Updating the OSPF routing protocol for communication networks by optimal decision-making over the k-shortest path algorithm

Internet routing protocols such as Routing Information Protocol (RIP) pre-compute all the shortest paths by Dijkstra's algorithm (shortest path first, SPF) based on the number of hops between one node and another. Every time any communication is intended, RIP looks-up for the optimal choice in a routing table. This is a high speed method in the decision-making process but not necessary fast for data traffic as it does not take into account any real-time measure of route congestion. Open Shortest Path First (OSPF) presents a dynamic version of this problem by computing the shortest paths taking into account network features such as bandwidth, delay and load. OSPF thereby maintains link-state…

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