Dermatophyte Morphology: A Scanning Electron Microscopy Study

The Dermatophytes are a broad group of fungi belonging to the class Fungii imperfecti that are the causative agents of dermophytosis (ringworm infections). The present work offers an overview of the morphology of these fungi found in cultures according to the scanning electron microscope. The fungi were obtained from cultures left to develop over variable periods of time that would be sufficient for growth. The morphological features of some dermatophytes obtained in artificial cultures are detailed: M. canis, M. gypseum, M. audouini, M. cookei, T. mentagrophytes, T. schoulemu, T. verrucosuin, T. ajelloi, T. prohferans, and E. floccosum. In all cases an analysis of the morphology of the reproductive mycelium developed in the culture was made: hyphae, macroconidia, microconidia, and chlamydospores; details that serve to distinguish one fungus from another. In the perfect forms, the morphology of the peridial hyphae and of the ascocarps (cleistotethia) are described

Perineal care and outcomes in a birth center

Objective: to analyse the perineal outcomes in childbirth and post-partum perineal care in a freestanding birth centre. Method: a cross-sectional study, with data collection performed in the women’s birth records forms from Casa Angela, a freestanding birth centre, São Paulo, Brazil, in 2016-2017 (n=415). The following data was analysed: occurrence and perineal tear degree; maternal, neonatal and birth care-related variables; perineal suture prevalence; complications in wound healing and natural methods on perineal care. Data were subjected to descriptive, inferential and multiple analyses. Results: in 11.8% of women, the perineum was kept intact, 61.9% had spontaneous first-degree tear and 26.3% had second-degree tear. The variables related to the occurrence and higher spontaneous degree tears were maternal age and second period of childbirth >2 hours. The protective factors against the occurrence and higher degree tears were number of previous vaginal childbirths and maternal position different from vertical during childbirth. Perineal suture was performed in 16.0% and 70.6% of women with spontaneous first- and second-degree tears, respectively. The main perineal complications after birth were edema (53.6%) and pain (29.4%); and the perineal suture increased the chance for these complications (OR=2.5; 95%CI 1.5-4.3). Perineum icepack compress was used in 53.8% of women during post-partum period. Conclusion: maternal and health-care related factors were associated to the prevalence and degree of spontaneous perineal tear. First-degree spontaneous perineal tears were prevalent and sutured in a low number of women. There were more complications in the wound healing process when the perineal suture was performed, regardless the tear degree. The number of natural methods in post-partum perineal care was higher than the use of medicines

El "poema escénico": un género híbrido

"El Matador" de R. Alberti, subtitulado "Poemas Escénicos", apunta a una realidad compleja al ser un discurso a medio camino entre la lírica y el drama. En el presente estudio se ofrece un análisis de sus componentes lírico-dramáticos y de algunos aspectos de la enunciación y de la ficción del discurso lírico. "El Matador" by R. Alberti, subtitled "Poemas Escénicos", points to a complex reality, for it is a text between a lyric style and a dramatic one. This paper analyses its lyric and dramatic components and some aspects of the enunciation and of the fiction of the lyric discourse

Efecto del fuego controlado sobre la dispersión y el banco de semillas del pasto puna (Stipa brachychaeta Godr.)

El fuego controlado y altas cargas instantáneas de ganado es una táctica de manejo para mejorar el sistema del caldenal. Sin embargo, se observa que con esta técnica el cardenal presenta un notable incremento de superficie cubierta por Stipa bractiychaeta, que tiende a volverse dominante en el pastizal mientras que antes se comportaba como acompañante. El objetivo fue evaluar el efecto que tendrían las quemas controladas y el pastoreo instantáneo sobre el banco de semillas de Stipa brachychaeta. En un área con dominancia de Stipa brachychaeta, se seleccionaron al azar 36 superficies circulares de 0,70 m de diámetro conteniendo una planta adulta de la citada especie. De estas, 12 fueron quemadas simulando una quema controlada, 12 fueron cortadas a 8 cm y 12 constituyeron el testigo. A su vez, de cada tratamiento en 6 se simuló el paso de animales y 40 días después de la quema, se extrajeron 4 muestras de suelo con un cilindro de 6 cm de diámetro y a una profundidad de 6cm. Las muestras fueron lavadas, tamizadas, secadas y se identificó con lupa los granos cleistógenos de Stipa brachychaeta. Se detectó la mayor densidad de granos cleistógenos (p<0,05) en el tratamiento quema x pisoteo. Estos resultados sugieren que esta técnica podría favorecer la dispersión de los granos cleistógenos.Directores: Morici, Ernesto y Daniel Estelrich.

Técnicas de creación y manipulación de imágenes de estructuras orgánicas tridimensionales. Nuevos entornos de aplicación didáctica

The development of computer-generated images opens new perspectives in the field of teaching. These techniques permit geometric modelling of three-dimensional structures, allowing the production and manipulation of real images and the numerical and graphic characterization of two-three-dimensional contours. The procedure proposed is based on the manipulation, by geometric (turns, traslations) and algebraic (addition, intersection) operations, of an initially finite set of surfaces (elipsoids, paraboloids, cylinders and planes), defined by their parameters, for teaching purposes

Unusual Tachycardia Association In A patient Without Structural Heart Disease

We report an unusual association of persistent atrial flutter and bundle branch re-entrant ventricular tachycardia in a young patient without structural heart disease. Atrial flutter masked the infra-Hisian conduction disease, was fundamentally dependent on a long PR interval, and could be a possible trigger of ventricular tachycardia