633 research outputs found
Eroticism in the Spanish Lyric theater Scene in the Early Twentieth Century
Early in the twentieth centurysome frivolous types of works in its staging began to appear in the Spanish lyric theaters showing curves and calves of the treble singers Couplets and other musical numbers conferred a racy and risqu tone that was all the rage especially among the male audience Authorities and the church attacked this kind of theater Morality in the theater had change
El papel de la AtenciĂłn Primaria de Salud en los trastornos por uso de sustancias y otros trastornos adictivos
Tratamiento conservador en los hematomas intracerebrales supratentoriales espontáneos
Se realiza un estudio prospectivo de 50 pacientes diagnosticados por medio de tomografĂa computarizada craneal (TC) y angiografĂa carotĂdea de hematomas intracerebrales espontáneos (HIS) tratados de forma conservadora. Se analizan caracterĂsticas clĂnicas y radiolĂłgicas de la fase aguda y la evoluciĂłn de los pacientes durante el tiempo de ingreso hospitalario. La mortalidad global fue del 32%. Los factores que influyeron significativamente en el pronĂłstico fueron: el mayor grado de dĂ©ficit motor al ingreso, el empeoramiento neural post-ingreso, el mayor volumen del hematoma y la presencia de efecto de masa en los estudios de TC y de angiografĂa carotĂdea. Todos los pacientes fueron evaluados clĂnicamente atendiendo a la escala de Glasgow para el Coma (EGC), con Ăndice de mal pronĂłstico en todos aquellos que tenĂan una puntuaciĂłn igual o inferior a ocho puntos. Se concluye que, de todos los factores evaluados en nuestro estudio, el volumen del hematoma con valor crĂtico de 50 ml y una puntuaciĂłn menor de ocho puntos en la EGC son las principales causas en la mala evoluciĂłn de estos enfermos
Dissecting the hindered rotation of ethane
The existence of a rotational barrier of ca. 3 kcal mol À1 around the CÀC single bond in ethane has been known The steric repulsion still remains the most popular explanation of the hindered rotation of ethane. This effect is often understood as the increase in energy that accompanies the antisymmetrization of a wave function originally formed by strictly localized descriptions of two methyl groups brought up to the final ethane geometry where they overlap. This so-called Pauli repulsion is considered to be more important for the eclipsed conformation, The hyperconjugation [21] The electron delocalization effect can easily be assessed in valence bond (VB) theory calculations Previous energy decomposition analyses relied, in one way or another, on the definition of two methyl fragments. However, in the last years there have been a growing interest in other kinds of energy partitioning schemes, The diatomic terms naturally reflect the attractive or repulsive interactions between the atoms in the molecule. The onecenter terms correspond to the effective energy of each atom in the molecule; its value relative to that of the corresponding free atom accounts for the promotion that occurs upon bond formation. In this sense, it is important to recall that the oneand two-center contributions are static parameters. [26] They measure to which extent the energy of a given atom or atomic pair contributes to the total molecular energy at that geometry and with the wave function used at that point. Thus, the diatomic values cannot be put into direct correspondence with the dissociation energies, as dissociation involves changes in both geometry and wave function. The main advantage of this methodology for the present case is that one can decompose all energetic interactions within the molecule on the basis of a single ab initio calculation, without recurring to an arbitrar
EvaluaciĂłn del control de los pacientes hipertensos dispensarizados de la policlĂnica "Omar Ranedo Pubillones" de Guantánamo
Se realizĂł un estudio con los pacientes hipertensos dispensarizados de la PoliclĂnica "Omar Ranedo Pubillones" de Guantánamo, del 1 de abril de 1997 al 30 de abril de 1998. De la totalidad de dichos pacientes en el área se obtuvo una muestra sistemática representativa, con el propĂłsito de evaluar el control de la enfermedad en dicha área de salud. Se encontrĂł que el 58,2% de ellos estaban controlados. La edad y el sexo no influyeron en el grado de control de la presiĂłn arterial. La patologĂa asociada que se presentĂł con mayor frecuencia fue la cardiopatĂa isquĂ©mica. El mejor resultado en el control de la enfermedad se obtuvo con el tratamiento combinado farmacolĂłgico y no farmacolĂłgico. Se concluye que hay un bajo grado de control de la presiĂłn arterial en la muestra estudiada
ComparaciĂłn de la actividad econĂłmica de entre ciudades de MĂ©xico mediante la matriz insumo-producto
The purpose of this study is to compare the economic activity of Mexican tourist destinations through the input-output matrix, in order to estimate the economic investment multipliers for these destinations. It was carried out based on input-output techniques with data on tourist arrivals for the year 2010, as well as the Gross Domestic Product per capita for each destination, the data was taken from the Municipal Human Development Index. The results obtained indicate that Mexico City is the best positioned and investment in tourism in that place has a greater influence on the rest of the destinations studied. This study allows to quantify the real contribution of the tourist demand in the economy in the tourist destinations.
El proposito de este estudio es comparar la actividad econĂłnomica de destinos turisticos mexicanos mediante la matriz insumo-producto, con la finalidad de estimar los multiplicadores econĂłmicos de inversiĂłn para dichos destinos. Se realizo a partir de tĂ©cnicas de insumo-producto con datos de llegadas de turistas del año 2010, asĂ como el Producto Interno Bruto per cápita por cada destino, los datos se tomaron del ĂŤndice de Desarrollo Humano Municipal. Los resultados obtenidos indican la Ciudad de MĂ©xico es la mejor posicionada y la inversiĂłn en turismo en dicho lugar influye en mayor proporciĂłn sobre el resto de los destinos estudiados. Este estudio permite cuantificar la aportaciĂłn real de la demanda turĂstica en la economĂa en los destinos turĂsticos
Mortalidad por enfermedad cerebrovascular en el Hospital General Docente “Dr. Agostinho Neto”. Estudio del quinquenio 1993-1997
 Se realizó un estudio tipo caso control con el objetivo de caracterizar aspectos de interĂ©s relacionados con la mortalidad por  enfermedad cerebrovascular (ECV) en el hospital  "Dr. Agostinho Neto" durante el quinquenio 1993 - 1997. El grupo estudio (fallecidos; n=300) y un grupo control (vivos; n=600), ambos con diagnĂłstico de ECV, fueron seleccionados aleatoriamente y apareados con una relaciĂłn 2:1. Los resultados más sobresalientes fueron los siguientes: la tasa de incidencia mostró una tendencia ascendente, la ECV oclusiva tuvo una incidencia mayor que la de la ECV hemorrágica. El análisis demostrĂł que hay una asociaciĂłn estadĂsticamente significativa entre la ECV y la hipertensiĂłn arterial (OR = 830), la edad (OR = 5.78) y con el antecedente de ECV previa (OR = 4.33). La bronconeumonĂa fue la complicaciĂłn más frecuente y la causa directa de muerte en el 45.7 % de los fallecidos
Nuclear DNA content variation in life history phases of the Bonnemaisoniaceae (Rhodophyta)
Nuclear DNA content in gametophytes and sporophytes or the prostrate phases of the following species of Bonnemaisoniaceae (Asparagopsis armata, Asparagopsis taxiformis, Bonnemaisonia asparagoides, Bonnemaisonia clavata and Bonnemaisonia hamifera) were estimated by image analysis and static microspectrophotometry using the DNA-localizing fluorochrome DAPI (4′, 6-diamidino-2-phenylindole, dilactate) and the chicken erythrocytes standard. These estimates expand on the Kew database of DNA nuclear content. DNA content values for 1C nuclei in the gametophytes (spermatia and vegetative cells) range from 0.5 pg to 0.8 pg, and for 2C nuclei in the sporophytes or the prostrate phases range from 1.15-1.7 pg. Although only the 2C and 4C values were observed in the sporophyte or the prostrate phase, in the vegetative cells of the gametophyte the values oscillated from 1C to 4C, showing the possible start of endopolyploidy. The results confirm the alternation of nuclear phases in these Bonnemaisoniaceae species, in those that have tetrasporogenesis, as well as those that have somatic meiosis. The availability of a consensus phylogenetic tree for Bonnemaisoniaceae has opened the way to determine evolutionary trends in DNA contents. Both the estimated genome sizes and the published chromosome numbers for Bonnemaisoniaceae suggest a narrow range of values consistent with the conservation of an ancestral genome
Emergent complex neural dynamics
A large repertoire of spatiotemporal activity patterns in the brain is the
basis for adaptive behaviour. Understanding the mechanism by which the brain's
hundred billion neurons and hundred trillion synapses manage to produce such a
range of cortical configurations in a flexible manner remains a fundamental
problem in neuroscience. One plausible solution is the involvement of universal
mechanisms of emergent complex phenomena evident in dynamical systems poised
near a critical point of a second-order phase transition. We review recent
theoretical and empirical results supporting the notion that the brain is
naturally poised near criticality, as well as its implications for better
understanding of the brain
Optimization of sentinel lymph node biopsy in breast cancer using an operative gamma camera
<p>Abstract</p> <p>Background</p> <p>Sentinel lymph node (SLN) procedure is now a widely accepted method of LN staging in selected invasive breast cancers (unifocal, size ≤ 2 cm, clinically N0, without previous treatment). Complete axillary clearance is no longer needed if the SLN is negative. However, the oncological safety of this procedure remains to be addressed in randomized clinical trials. One main pitfall is the failure to visualize SLN, resulting in incorrect tumor staging, leading to suboptimal treatment or axillary recurrence. Operative gamma cameras have therefore been developed to optimize the SLN visualization and the quality control of surgery.</p> <p>Case presentation</p> <p>A 44-year-old female patient with a 14-mm infiltrative ductal carcinoma underwent the SLN procedure. An operative gamma camera was used during and after the surgery. The conventional lymphoscintigraphy showed only one SLN, which was also detected by the operative gamma camera, then removed and measured (9.6 kBq). It was analyzed by frozen sections, showing no cancer cells. During this analysis, the exploration of the axillary area with the operative gamma camera enabled the identification of a second SLN with low activity (0.5 kBq) that conventional lymphoscintigraphy, surgical probe and blue staining had failed to visualize. Histological examination revealed a macrometastasis. Axillary clearance was then performed, followed by a postoperative image proving that no SLN remained. Therefore, the use of the operative gamma camera prevented an under-estimation of staging which would have resulted in a suboptimal treatment for this patient.</p> <p>Conclusion</p> <p>This case report illustrates that an efficient operative gamma camera may be able to decrease the risk of false negative rate of the SLN procedure, and could be an additional tool to control the quality of the surgery.</p> <p>Trial Registration</p> <p>ClinicalTrials.gov Identifier: NCT00357487</p
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