Cables E.,University of Holguin |
Garcia-Cascales M.S.,University of Granada |
Lamata M.T.,Technical University of Cartagena
Expert Systems with Applications | Year: 2012
This paper develops an evaluation approach based on the Technique for Order Performance by Similarity to Ideal Solution (TOPSIS). When the input for a decision process is linguistic, it can be understood that the output should also be linguistic. For that reason, in this paper we propose a modification of the TOPSIS algorithm which develops the above idea and which can also be used as a linguistic classifier. In this new development, modifications to the classic algorithm have been considered which enable linguistic outputs and which can be checked through the inclusion of an applied example to demonstrate the goodness of the new model proposed. © 2011 Elsevier Ltd. All rights reserved.
Lamata M.T.,University of Granada |
Perez E.C.,University of Holguin
International Journal of Intelligent Systems | Year: 2012
The ordered weighted averaging operator has been widely studied for its practical use in decision problems. This operator has an associated weights vector with specific properties. Different variants have been developed to obtain it. Among these are those which use the order relationship between the criteria. This paper presents a method to obtain a weights vector, which has as inputs the weights vector obtained by the Borda-Kendall law and the quantified preference relation between the criteria given by the decision maker. Then, through a set of operations, the new weights vector is obtained; this vector is between the weights obtained by the Borda-Kendall law and the weighted average vector. In addition, the paper shows the properties that verify the vectors obtained by this method and its use is illustrated through an example. © 2012 Wiley Periodicals, Inc.
Rosales Ricardo Y.,University of Holguin
Nutricion Hospitalaria | Year: 2012
Objective: To update existing knowledge of anthropometry used in the diagnosis of obesity in Cuba and the world. Material and methods: Literature and document review during March 2010 and January 2012. The databases searched were Medline and Cochrane through PubMed. We used the following key words: anthropometry, obesity, adults. Results and discussion: The evidence shows that existing anthropometric indicators are not entirely effective in diagnosing obesity in primary health care, some of their applicability and other hard not to respect the latter concept of obesity issued by the World Health Organization inaccuracy or evaluative. Conclusions: Despite the wide variety of existing anthropometric indicators to diagnose obesity in adults all have their difficulties in application and generalization. Besides that most of these are not adapted and validated for specific populations.
Dhalla N.S.,University of Manitoba |
Takeda N.,Jikei University School of Medicine |
Rodriguez-Leyva D.,University of Holguin |
Elimban V.,University of Manitoba
Heart Failure Reviews | Year: 2014
Diabetic cardiomyopathy is not only associated with heart failure but there also occurs a loss of the positive inotropic effect of different agents. It is now becoming clear that cardiac dysfunction in chronic diabetes is intimately involved with Ca2+-handling abnormalities, metabolic defects and impaired sensitivity of myofibrils to Ca2+ in cardiomyocytes. On the other hand, loss of the inotropic effect in diabetic myocardium is elicited by changes in signal transduction mechanisms involving hormone receptors and depressions in phosphorylation of various membrane proteins. Ca 2+-handling abnormalities in the diabetic heart occur mainly due to defects in sarcolemmal Na+-K+ATPase, Na +-Ca2+ exchange, Na+-H+ exchange, Ca2+- channels and Ca2+-pump activities as well as changes in sarcoplasmic reticular Ca2+-uptake and Ca2+-release processes; these alterations may lead to the occurrence of intracellular Ca 2+ overload. Metabolic defects due to insulin deficiency or ineffectiveness as well as hormone imbalance in diabetes are primarily associated with a shift in substrate utilization and changes in the oxidation of fatty acids in cardiomyocytes. Mitochondria initially seem to play an adaptive role in serving as a Ca2+ sink, but the excessive utilization of long-chain fatty acids for a prolonged period results in the generation of oxidative stress and impairment of their function in the diabetic heart. In view of the activation of sympathetic nervous system and renin-angiotensin system as well as platelet aggregation, endothelial dysfunction and generation of oxidative stress in diabetes and blockade of their effects have been shown to attenuate subcellular remodeling, metabolic derangements and signal transduction abnormalities in the diabetic heart. On the basis of these observations, it is suggested that oxidative stress and subcellular remodeling due to hormonal imbalance and metabolic defects play a critical role in the genesis of heart failure during the development of diabetic cardiomyopathy. © Springer Science+Business Media 2013.
Canedo Andalia R.,University of Holguin
Revista Cubana de Informacion en Ciencias de la Salud | Year: 2014
Scopus citation indexes for contributions by Cuban authors in the field of health sciences were identified and compared with those of selected Latin American countries to determine and explain their behavior based on the distribution of certain variables of interest. Use was made of SCImago Journal & Country Rank. Cuban scientific production in health sciences in Scopus practically doubles other knowledge areas. 69, 27 % of such production corresponds to medicine, 62, 87 % was published in national journals and 66, 44 % in Spanish. The citation index for Cuban scientific production in health sciences is considerably lower than for countries considered as great and moderate producers of medical literature in Latin America. From 2009 to 2011 Cuban medical journals published 1 815 citable papers. However, only 80 citations were received in 2012, for an average of 0, 044 per published paper. The volume of Cuban medical literature published in national journals and processed by Scopus, together with their poor citation indexes, substantially lowers the citation indexes of Cuba as a country. It is thus urgent to increase the quality of the contributions published by these journals with a view to reducing their total volume and raising citation levels.