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Cabeza Monroy G.M.,University Catolica Argentina
Vertex (Buenos Aires, Argentina) | Year: 2010

This study examines Axis I comorbidity in patients with borderline personality disorder as compared with patients with other personality disorders and to patients without personality disorders. A total of 235 clinical histories were evaluated. These were divided into three groups: 92 pertaining to patients with borderline personality disorder, 69 to ones having other personality disorders and 74 to patients without personality disorders. For purposes of statistical analysis, ANOVA and chi-square were employed. There were 89 (96.7%) patients with borderline personality disorder who had at least one Axis I diagnosis, and 13 (16.3%) who had three or more diagnoses, significantly higher in comparison to other groups (p = 0.0001). The comorbidity of Axis I diagnoses and borderline personality disorder was found to be high. Borderline personality disorder was significantly associated with mood, anxiety and substance use disorders. A prospective investigation is suggested.

Redelico F.O.,University Catolica Argentina | Redelico F.O.,University of Buenos Aires | Piacquadio M.N.,University of Buenos Aires
Journal of Physics: Conference Series | Year: 2010

The search for laws governing the occurrence of financial crashes is one of the most important activities in the field of econophysics. In this contribution the daily fluctuation of the price at the close time series before the April 2000 crash NASDAQ100 is analyzed using fractal geometry, two multifractal spectra are derived and a new instability index is presented in order to enlighten the results obtained within these spectra. Using these methods, empirical evidence of the usefullness of the discrete Chakrabarti-Stinchcombre model for earthquakes to describing the rising part of a speculative buble leading a crash is found. © 2010 IOP Publishing Ltd.

Samaniego V.C.,University of Buenos Aires | Vazquez N.,CONICET | Bonzo C.,University Catolica Argentina | de Behrends M.R.,University Catolica Argentina | Garcia A.,University Catolica Argentina
Revista Argentina de Clinica Psicologica | Year: 2013

One of the main factors that affects population trend of smoking is the consumption level among health professionals. That consumption has been studied mainly among physicians. This study aims to determine the prevalence of tobacco use and other psychosocial variables among psychologists through an observational cross-sectional study. Features inquired were: tobacco consumption; stages of change, temptation, degree of addiction, social acceptability. The final sample was 1204 psychologists. The study yielded a prevalence of smoking of 34,1%. The percentage of psychologists in the precontemplation stage was 57,5%. The prevalence of smoking in psychologists is higher than in the general population and there is a high quitting resistance in this population. © 2013 Fundación Aiglé.

Redelico F.O.,University Catolica Argentina | Redelico F.O.,University of Buenos Aires | Proto A.N.,University Catolica Argentina | Proto A.N.,National University of Central Buenos Aires | And 2 more authors.
Journal of Physics: Conference Series | Year: 2010

This work describes a method for searching for globalization evidence within Latin American countries using correlation networks methods. Two correlation measures are used, one based on the usual Pearsons Correlation Coefficient and the other based on Mutual Information. First, it is pointed out there is a core of globalization, where no trade blocs appear, within Latin American countries and second, a hierarchy, from a globalization point of view, is found within these countries. There is no intention to enter into a political consideration here, though any politically prone reader may guess that some further consideration is in order. © 2010 IOP Publishing Ltd.

Huarte H.R.,University Catolica Argentina | Luna V.,National University of Rio Cuarto | Pagano E.A.,Catedra de Bioquimica | Zavala J.A.,INBA Catedra de Bioquimica | Benech-Arnold R.L.,University of Buenos Aires
Seed Science Research | Year: 2014

Fluctuating temperatures terminate seed dormancy in many species, including Cynara cardunculus (L.) var. sylvestris. Termination of physiological dormancy requires low ratios of abscisic acid (ABA)/gibberellins (GA). In a previous paper we have shown that physiological responses to fluctuating temperatures comprise a reduction of abscisic acid (ABA) content and sensitivity. However, a possible stimulation of GA synthesis was also suggested as part of the mechanism. That possible stimulation, as well as the identification of potential regulatory sites for ABA and GA metabolism and signalling involved in the termination of dormancy by fluctuating temperatures, are yet to be determined. In this study, we measured GA content and sensitivity in seeds incubated under constant and fluctuating temperatures. We also assessed the expression of several genes involved in ABA and GA metabolism and signalling. Our results show that fluctuating temperatures reduce ABA/GA ratios through a reduction in ABA accumulation during incubation but without altering GA synthesis as compared to that observed under constant temperatures. On the other hand, fluctuating temperatures did not increase sensitivity to GA. Fluctuating temperatures reduced the expression of CycaNCED and CycaABI5 (ABA synthesis and signalling genes) with a temporal pattern that coincides with the interruption of ABA accumulation that precedes germination of seeds incubated under fluctuating temperatures. However, fluctuating temperatures did not modify the expression of CycaCYP707A2 (ABA inactivation) as compared to that observed under constant temperatures. Consistent with our determinations of GA content and sensitivity, fluctuating temperatures did not modify the expression of GA synthesis (CycaGA3ox) and signalling genes (CycaRGL2 and CycaGAI) in relation to that observed at constant temperatures. These results show that fluctuating temperatures terminate dormancy in Cynara cardunculus seeds through an interruption in ABA accumulation and a reduction in ABA signalling exerted at the level of CycaNCED and CycaABI5 expression. © 2014 Cambridge University Press.

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