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Search Results: 1 - 10 of 481047 matches for " María Cristina; Moscoloni "
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Visualización de clases construidas para el análisis de registros continuos de parámetros clínicos
Tarrés,María Cristina; Moscoloni,Nora; Montenegro,Silvana; Damiani,Silvio;
Interciencia , 2009,
Abstract: systolic and diastolic arterial blood pressure and heart frequency performed all along the day under basal conditions and at 6, 26 and 52 weeks of treatment were processed. multidimensional data techniques were applied with the french school approach (multiple correspondence analysis followed by construction of clusters on factorial coordinates), achieving partition in three classes. thereafter, each class was considered as a symbolic object and multivariant star graphs were drawn to show the different class profiles, making possible a satisfactory graphic visualization.
Síndrome de desgaste profesional en médicos pediatras: Análisis bivariado y multivariado
Pistelli,Yanina; Perochena,Jorge; Moscoloni,Nora; Tarrés,María Cristina;
Archivos argentinos de pediatr?-a , 2011,
Abstract: background. as burnout syndrome has been barely analyzed in pediatricians, it was considered relevant to explore labor satisfaction and tiredness in these professionals and to evaluate possible associated factors. population and methods. the maslach burnout inventory questionnaire was voluntarily and anonymously applied to pediatricians. personal and professional variables were included. bivariate and multivariate statistical techniques were employed for analyzing registered data. results. answer rate reached 89%. mean values related with emotional exhaustion, depersonalization and personal achievement were 30.60 ± 10.98, 0.51 ± 5.95 and 35.76 ± 7.32, respectively. it was established that as time of pediatric performance went on, personal achievement increased and depersonalization diminished. depersonalization also decreased in physicians carrying out managerial jobs. the clusters obtained through multivariate analysis showed a higher to lower severity ordination, going from pediatricians with lower personal achievement and higher values of depersonalization and emotional exhaustion (classes 1 and 2) to pediatricians with lower emotional exhaustion, medium depersonalization and higher personal achievement (classes 4 and 5). conclusions. the polled pediatricians evidenced higher values of emotional exhaustion and depersonalization and a medium personal achievement. this dimension became higher as they revealed more years of professional performance. depersonalization was lower in physicians carrying out managerial jobs. multivariate analysis was useful to group individuals in accordance with their affinities on the studied variables.
Tuberculosis pediátrica en un hospital de referencia durante el período 2004-2008 Pediatric tuberculosis at a reference hospital during the 2004-2008 period
Mónica G. Rodríguez,Claudia P. Patallo,Viviana A. Rizzotti,María A. Moscoloni
Revista argentina de microbiolog?-a , 2011,
Abstract: Se realizó un estudio retrospectivo y descriptivo de las muestras de pacientes pediátricos remitidas al laboratorio del Hospital Pi ero durante el período 2004-2008 para el cultivo de micobacterias por sospecha de tuberculosis. Durante dicho período ingresaron un total de 8409 muestras, de las cuales 1542 (18%) fueron pediátricas; de ellas 1407 (91%) pulmonares y 135 extrapulmonares (9%). El procesamiento de las muestras incluyó baciloscopía, cultivo, identificación y prueba de sensibilidad. La nacionalidad de los pacientes pediátricos se distribuyó del siguiente modo: argentinos, 1218 (79%); extranjeros, 247 (16%), representados estos últimos por paraguayos, peruanos y sobre todo bolivianos. Para un 5% de los pacientes no fue informada la nacionalidad. La distribución por sexo fue: femenino, 787 pacientes (51%); masculino, 755 pacientes (49%). De acuerdo con la edad de los pacientes se obtuvo la siguiente distribución: 0 a 4 a os, 674 ni os (grupo A, 45%), 5 a 9 a os, 354 ni os (grupo B, 24%); y 10 a 15 a os, 464 pacientes (grupo C, 31%). Las principales asociaciones mórbidas fueron desnutrición e infección por el virus de la inmunodeficiencia humana. La baciloscopía fue positiva en 41 muestras (2,6%), en tanto que la recuperación mediante cultivo alcanzó las 84 muestras (5,4%), 78 de ellas pulmonares y 6 extrapulmonares. Todas las cepas fueron identificadas como complejo Mycobacterium tuberculosis. Los aislamientos fueron sensibles a estreptomicina, isoniazida, rifampicina y etambutol, excepto una cepa resistente a etambutol y estreptomicina y otra resistente a isoniazida. La confirmación bacteriológica de la tuberculosis pediátrica es difícil de alcanzar debido a la presentación paucibacilar de las muestras, pero juega un papel fundamental en el diagnóstico de certeza, ya que permite la identificación y la realización de las pruebas de sensibilidad del aislamiento. Samples of pediatric patients suspected of tuberculosis and cared for at Hospital Pi ero during the 2004-2008 period were analyzed according to epidemiological and clinical criteria. The bacteriological contribution was evaluated to confirm the disease diagnosis. A descriptive retrospective analysis of the cases was done. A total of 8409 samples were received for mycobacterial culture: 1542 (18%) of which were pediatric and distributed as follows: 1407 (91%), pulmonary and 135 (9%), extra-pulmonary. The sample examination included staining for acid-fast bacilli, culture, identification and drug susceptibility testing. The following are the results of analized demographic variables: National
Tuberculosis pediátrica en un hospital de referencia durante el período 2004-2008
Rodríguez,Mónica G.; Patallo,Claudia P.; Rizzotti,Viviana A.; Moscoloni,María A.; Ballester,Daniela S.;
Revista argentina de microbiolog?-a , 2011,
Abstract: samples of pediatric patients suspected of tuberculosis and cared for at hospital pi?ero during the 2004-2008 period were analyzed according to epidemiological and clinical criteria. the bacteriological contribution was evaluated to confirm the disease diagnosis. a descriptive retrospective analysis of the cases was done. a total of 8409 samples were received for mycobacterial culture: 1542 (18%) of which were pediatric and distributed as follows: 1407 (91%), pulmonary and 135 (9%), extra-pulmonary. the sample examination included staining for acid-fast bacilli, culture, identification and drug susceptibility testing. the following are the results of analized demographic variables: nationality: 1218 argentinean (79%), 247 foreigners (16%) and 77, not disclosed (5%); gender: 787 female (51%) and 755 male (49%). patients were grouped according to age into: group a, 0 to 4 years 674 (45%); group b, 5-9 years 354 (24%) and group c, 10-15 years 464 (31%). morbidity causes associated with the disease were mainly malnutrition and infection by human immunodeficiency virus. staining for acid-fast bacilli was positive in 41 samples (2.6%) and 84 cultures resulted positive (5.4%), 78 (93%) of which were pulmonary and 6 (7%) extra-pulmonary samples. all the strains were identified as mycobacterium tuberculosis. isolates were susceptible to streptomycin, isoniazid, rifampicin, and ethambutol, except for one strain that was resistant both to ethambutol and streptomycin, and another one which was resistant to isoniazid. bacteriological confirmation of pediatric tuberculosisis is rarely achieved due to the predominantly paucibacillary nature of the disease in children (5% in our study), but plays a fundamental role in diagnosis accuracy, allowing the identification and susceptibility testing of the strain.
Las políticas de ciencia y tecnología en Venezuela y su impacto en el sistema universitario en el estado Zulia
Parra,María Cristina;
Interciencia , 2007,
Abstract: the policies of science and technology developed by the venezuelan state have been tacitly oriented to surpass the traditional model of production of the knowledge. the unexpected effects of those policies indicate that this model has been strengthened: individualism, isolation, low pertinence and specialization inhibit new models of research. traditionally, the scientific production has had its privileged space in the universities and in them the professors have the key paper in the knowledge production. in the article it is analyzed the possible effect that the policies implemented by the state have had in the reinforcement of a model of production of the knowledge that does not go beyond the academic realm, nor implies the companies, the nongovernmental organizations and communities of direct way. data obtained from a sample of professors of four universities of the zulia region is analyzed: two public institutions and two private ones. the analysis inquires the policies of science and technology of the venezuelan state and challenges to the university institutions and to the own state to evaluate which is the true social impact that the policies have had and to what extent they have meant the democratization of the knowledge.
Desarrollos del analisis factorial para el estudio de item dicotomicos y ordinales
Richaud,María Cristina;
Interdisciplinaria , 2005,
Abstract: factor analysis has been used in formulating conceptual models in personality and personality assessment, as well as in the process of construction of personality scales. factor analysis assumes continuously measured interval level data. however, applications of the factor analysis model in the personality literature frequently are conducted using dichotomous or ordinal data obtained at the item level. it has been proposed several solutions for studying dichotomous or ordinal data. christoffersson (1978) introduced a method for factor analyzing dichotomous data using tetra-choric correlations. muthén (1984) extended this method to provide a less computationally heavy approach. standard factor analysis implies two different levels of variables: unobserved factors, and observed indicators for those factors (items). the generalized least squares method to the factor analysis of dichotomous data requires one additional intermediate level between the observed data and the latent variable. thus two levels of abstraction are involved in the analysis: observed dichotomous or ordered categorical items are linked to unobserved latent response variables via tetra-choric or polychoric correlations. these unobserved latent response variables then serve as the indicators for the factors. in this model the factors summarize the relations among latent variables rather than directly among observed variables. another method for the factor analysis of dichotomous or ordered categorical items is that of maximum likelihood. as in the case of the generalized least squares method, the maximum likelihood approach use tetrachoric correlations among items, but approximates a numerical integration of a distribution of observations, assumed to be normal, using weighted sums. there exist also parallel analysis programs (buja, & eyuboglu, 1992; horn, 1965) that produce data sets based in aleatory numbers normally distributed, generated by the computer (o'connor, 2000). another manner of analysis
Contornos y confines del universo iconográfico precalchaquí del valle de Santa María
Scattolin,María Cristina;
Estudios atacame?os , 2006, DOI: 10.4067/S0718-10432006000200009
Abstract: this article offers a characterisation of pre-santamariana ceramics from santa maría valley, catamarca, argentina. more than 300 ceramic vessels from old collections are examined. during the first millennium ad, the attributes "dorsal-ventral symmetry", "effigy vessel", "oblique neck", and several others, were currently used and reflect a common trend, a habit, in shaping fine vessels. the analysis seeks to contribute and to adjust cultural chronological and symbolic legitimation models for the central area of northwest argentina. the results confirm that the material remains attributed to aguada style are barely represented in santa maría valley, and integrative effects originated from ambato or hualfín valley do not occur. on the contrary, the populations of santa maría valley consumed vessels whose making techniques and design ways were shared with the southern selvas occidentales, tafí valley, tapia-trancas basin, cajón valley, and southern calchaquí valley.
Sobre la completitud de los sistemas jurídicos
Redondo,María Cristina;
An??lisis filos?3fico , 2006,
Abstract: this paper analyses five different ways of understanding completeness as an ideal of legal systems. in doing so it essentially relies on the thesis discussed by carlos alchourrón regarding this subject. the paper stresses the need to distinguish (1) the criteria for the identification of the legally relevant texts, (2) the methods or rules that justify the passage from a content c to another content c1 and, (3) the criteria for the identification of valid norms belonging to the system. according to the dominant conception in legal theory, the rules of logic justify the passage from a content to another; such rules, however, are not accepted as membership criteria. this means that the notion of system that legal theorists use to organize the law is not the notion of a deductive system. in this conception the ideal of absolute completeness is a logically possible ideal. the conclusion reached in the article is that there are only two ways of understanding the ideal of "plenitude" or absolute completeness of a legal system: in a formalist view, through the introduction of residual rules of closure, or, in a moralistic view, by accepting critical morality as a criterium for legal validity.
Microscopic structure of the egg capsule of Atlantoraja cyclophora (Elasmobranchii: Rajidae: Arhynchobatinae)
Oddone, María Cristina;
Biota Neotropica , 2005, DOI: 10.1590/S1676-06032005000300020
Abstract: the microscopic structure of the egg capsules of atlantoraja cyclophora, a species endemic to the atlantic region of south america, is presented in this paper. in a transverse section, the dorsal face of the egg case is 70m in width, and is subdivided into four layers. ventrally, the egg capsule wall is 60 m wide and composed of three layers. both faces are covered by prickles which render the egg capsule surface striated to the naked eye.
CATEGOREMAS INDíGENAS Y DESIGNACIONES ARQUEOLóGICAS EN EL NOROESTE ARGENTINO PREHISPáNICO
Scattolin,María Cristina;
Chungará (Arica) , 2006, DOI: 10.4067/S0717-73562006000200003
Abstract: in a similar way to indigenous ethnocategories, categories used in archaeological classifications are an object of mental representations by researchers. hence, they can be scrutinized also, just as anthropology has studied native conceptual schemes. a methodical review of archaeological classifications would reduce subjective valuations that persist in scientific research. this idea is applied to the analysis of the first millennium a.d. in the santa maría valley, northwest argentina. the results show that archaeological categories are imposed by the uncontrolled incorporation of indigenous cognitive schemes and become emancipated from our control by routine repetition more than by scientific validation. this work confirms that "what is certain of the savage thought, is certain of all learned thought" and it ratifies the appropriateness of regularly subjecting archaeological categories to review
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