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Search Results: 1 - 10 of 212943 matches for " JJ Martín Lozano "
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Catástrofes. Repercusión en Salud Mental.
JJ Martín Lozano,J Santo-Domingo Carrasco
Revista de la Asociación Espa?ola de Neuropsiquiatría , 1994,
Abstract: Sin resumen.
Diagnóstico y tratamiento de la uretritis crónica en la sanidad militar con el cambio de siglo (XIX-XX)
Martín-Laborda y Bergasa,Fernando; Lozano Lozano,Doroteo;
Archivos Espa?oles de Urología (Ed. impresa) , 2007, DOI: 10.4321/S0004-06142007000800018
Abstract: objectives: we can say that in military hospitals, pioneer institutions in health-care in our country, approximately 25% of the pathology over the second half of the 19th century would correspond to sexually transmitted diseases (std,) with hospital wards dedicated to these diseases , initially associated with genitourinary diseases. the "military drip" or blennorrhagic urethritis was a venereal disease with great incidence and prevalence in the pre-antibiotic era. this article reviews the diagnostic and therapeutic methods employed by spanish military doctors during such period. methods: in the introduction we state the relationship between the knowledge of the time and the environment in which military doctors developed their professional activity. we make reference to military health-care journals, vehicle for their worries and demonstration of the level of theoretical and practical knowledge they were distinguished for. based on their service records and publications we refer the urologists from the military health-care system that showed a greater interest in the field of urethral diseases, talking about the methodology they used for diagnosis and treatment of blennorrhagic urethritis. results and conclusions: military health-care at the end of 18th century and the beginning of the 19th century joined a group of professionals who demonstrated talent and perseverance in the treatment of "military drip". to know the concepts for the diagnosis and treatment of urethritis improves our perspective in the knowledge of these pathologies, and confirms us in the evaluation of the advances available for us today, thanks to the addition of efforts of our predecessors.
Funciones termodinámicas relativas a la transferencia del ketoprófen desde el agua hasta algunos sistemas orgánicos
Lozano, Hernán R.;Martínez, Fleming;
Química Nova , 2006, DOI: 10.1590/S0100-40422006000400015
Abstract: the thermodynamics of molal partitioning of ketoprofen (ktp) was studied in cyclohexane/buffer (ch/w), octanol/buffer (roh/w), and dimyristoyl phosphatidylcholine (dmpc), dipalmitoyl phosphatidylcholine (dppc), and egg lecithin (egg/w) liposome systems. in all cases the partition coefficients (kmo/w)were greater than unity; therefore the standard free energies of transfer were negative indicating affinity of ktp for organic media. the kmo/w values were approximately seventy-fold higher in the roh/w system compared with the ch/w system. on the other hand, the kmo/w values were approximately ten or fifty-fold higher in the liposomes compared with the roh/w system. in all cases, the standard enthalpies and entropies of transfer of ktp were positive indicating some degree of participation of the hydrophobic hydration on partitioning processes.
Thermodynamics of partitioning and solvation of ketoprofen in some organic solvent: buffer and liposome systems
Lozano, Hernán Ricardo;Martínez, Fleming;
Revista Brasileira de Ciências Farmacêuticas , 2006, DOI: 10.1590/S1516-93322006000400016
Abstract: the ketoprofen (ktp) partitioning thermodynamics was studied in different solvent/buffer systems such as cyclohexane (ch/w), octanol (roh/w), isopropyl myristate (ipm/w), chloroform (clf/w); as well as in dimyristoyl phosphatidylcholine (dmpc) and dipalmitoyl phosphatidylcholine (dppc) liposome systems. in all cases, the rational partition coefficients (kxo/w) were greater than unit; therefore standard transfer free energies were negative in sign indicating a high affinity of ktp for organic media. kxo/w values were approximately eightyfive-fold higher in the roh/w system regarding the ch/w system, thus indicating a high degree of hydrogen bonding contribution to partitioning. while in the case of ipm/w and clf/w systems, kxo/w values were approximately only three or four-fold lower than those observed in roh/w. on the other hand, kxo/w values were approximately seventy-five or one hundred fifty-fold higher in the liposomes compared to roh/w system indicating a high degree of bilayers immobilization and/or an electrostatic contribution to partitioning. in all cases, standard transfer enthalpies and entropies of ktp from water to organic media were positive in sign indicating some degree of participation of the hydrophobic hydration on the partitioning processes. finally, by using the reported data for solvation of ktp in water, the associated thermodynamic functions for ktp solvation in all tested organic phases were also calculated.
Critical analysis of the definition of severe dengue, based on the Ecuador outbreak in 2012  [PDF]
Natalia Romero Sandoval, Pablo Lozano, Jacqueline Cevallos, Virginia Ruiz, Miguel Martín
Open Journal of Epidemiology (OJEpi) , 2014, DOI: 10.4236/ojepi.2014.41007
Abstract: Of the 238 cases reported to the Ecuador Health Authorities in 2012 as severe dengue, only 53.3% met diagnostic criteria. The definition of severe dengue should be based on more precise criteria. Information about compliance with criteria should be fed back to local levels.
Embolia aérea pulmonar como complicación de punción venosa central Pulmonary air embolism as a complication of central venous catheter
J. Bayón,M. Martín,I. Lozano
Medicina Intensiva , 2010,
Abstract:
Aspectos termodinámicos de la miscibilidad parcial entre el n-octanol y el agua
Mora, Carolina P.;Lozano, Hernán R.;Martínez, Fleming;
Revista Brasileira de Ciências Farmacêuticas , 2005, DOI: 10.1590/S1516-93322005000100003
Abstract: in the present work the thermodynamic analysis for those data presented by dallos and liszi on mole fraction n-octanol-water liquid-liquid equilibria was made. the values were analyzed using the van't hoff method (ln s as a function of t-1) and those presented by grant et al. (ln s as a function of t-1 and ln t). a non-lineal behavior was found in all cases studied by the van't hoff method, which lead us to apply a parabolic regression model derived in order to calculate the enthalpic changes. endothermic processes were obtained for all temperatures studied. in both systems the free energy changes were positive, whereas the entropic changes were negative indicating some kind of organization in the saturated solutions. in the case of n-octanol-saturated water this result would be explained as the hydrophobic hydration around the aliphatic groups and on the other hand, in the case of water-saturated n-octanol, it could be due to organization of n-octanol molecules around water molecules by hydrogen bonds as it has been presented in literature. the thermodynamic values calculated were compared with those presented by other authors, which were obtained by calorimetry and also by means of equilibrium constants as a function of temperature.
La Importancia del Intangible en la Empresa de Internet: Una Propuesta de Medición Contable
Ma Carmen Lozano Gutiérrez,Federico Fuentes Martín
Economic Analysis Working Papers , 2005,
Abstract: En el presente documento de trabajo se analiza la importancia de intangible en el valor de la empresa de Internet y por tanto en la obtención de financiación para la misma, la problemática de su contabilización, así como un estudio empírico en el que se propone la aplicación de una metodología basada en las técnicas operativas proporcionadas por la teoría de los subconjuntos difusos, a la identificación, y posterior tratamiento de los intangibles generadores de ventaja competitiva y su inclusión en un "balance invisible.
La Inteligencia Artificial aplicada a la toma de decisiones en la Empresa de Internet
Ma Carmen Lozano Gutiérrez,Federico Fuentes Martín
Economic Analysis Working Papers , 2004,
Abstract: En el presente documento de trabajo se presenta una aplicación de una metodología basada en distintas técnicas de Inteligencia Artificial (redes neuronales, lógica difusa, así como técnicas bio-inspiradas basadas en el comportamiento de las hormigas) al proceso de toma de decisiones de la empresa en red, para la consecución de un objetivo concreto como es el de lograr la maximización de los enlaces recorridos así como el logro de una óptima usabilidad del sitio.
La Percepción Emocional del Dinero como Determinante de un Comportamiento de Ahorro o Endeudamiento
Ma Carmen Lozano Gutierrez,Federico Fuentes Martín
Economic Analysis Working Papers , 2007,
Abstract: En el presente artículo se realiza un análisis de afinidades en la percepción del dinero para las personas que ahorran o se endeudan, con la finalidad de establecer las consecuencias que en el comportamiento económico propio de cada grupo tienen las valoraciones subjetivas en relación al dinero. Las conclusiones a las que llegamos podrían servir para el desarrollo de estrategias de promoción del ahorro y contención del endeudamiento.
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