999 resultados para Primera Plana


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La lapa majorera (Patella candei) es un gasterópodo marino, endémico de laMacaronesia, con poblaciones restringidas a las islas Salvajes y Fuerteventura. Es precisamente su reducida área de distribución, el bajo número de efectivos poblacionales y la existencia de factores de riesgo y amenaza sobre la especie, lo que llevó a la Comunidad Autónoma de Canarias a proponer su inclusión en el Catálogo Nacional de Especies Amenazadas y, posteriormente en el Catálogo de Especies Amenazadas de Canarias, en la categoría denominada en peligro de extinción.

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[EN]Effects of first feeding on survival and growth of Atlantic seahorse juveniles, Hippocampus hippocampus, (Linnaeus, 1758). In this study, two experimental protocols were tested: a first treatment (RA), in which larvae were fed exclusively on rotifers until day 5, and then on Artemia, and a second treatment (A) where larvae were only fed on Artemia. We attempted to improve survival and growth by comparing different diets in the first days of life. The results showed excellent survival (60% average) and growth in juveniles exclusively fed with Artemia, with better values than those obtained by other authors for this species. In comparison, high mortality and poor growth were observed on the first days in larvae fed rotifers.

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[ES] Se estudia aquí la ontología personal de Laín Entralgo en su primera etapa. Laín aborda la relación médico-enformo desde una perspectiva personal. La reflexión antropológica la extiende al problema de España.

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[ES] En este trabajo se analiza la creación y funcionamiento de la Comisaría General de Excavaciones Arqueológicas de España desde sus inicios en 1939 hsta su sustitución por el Servicio Nacional de Excavaciones Arqueológicas en 1955 en el contexto político de la dictadura franquista. Nos centraremos en el estudio de su organigrama, el sistema de reclutamiento de los colaboradores y los problemas que surgieron en algunos casos y explicaremos el marco legal en el que la Comisaría desarrolló su labor.

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To observe the excursions of short-term intraocular pressure (IOP) after 20-G pars-plana vitrectomy (ppV).

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PURPOSE: To report on the outcome of combined pars plana phacofragmentation, vitrectomy, and Artisan lens implantation in the management of subluxated cataracts. METHODS: This prospective, interventional, nonrandomized case series included nine eyes of seven consecutive adult patients with traumatic lens subluxation. Pre- and postoperative data (complete manifest refraction, best spectacle-corrected visual acuity, slit-lamp examination findings, intraocular pressure, fundus status, numerical density of endothelial cells, corneal thickness, and complications) were collected prospectively for all patients. RESULTS: After a median postoperative follow-up of 12 months (range, 8-18 months), a mean spherical equivalent of -0.50 +/- 0.87 diopter (range, +1 to -1.50 diopter) was achieved. The mean logarithm of the minimum angle of resolution visual acuity improved from 1 (preoperatively) to 0.1 (postoperatively) (P = 0.007, Wilcoxon test). Median endothelial cell losses of 15 +/- 8% (P = 0.008) and 14 +/- 16% (P = 0.011) were registered at follow-ups of 1 month and 12 months, respectively. Postoperative complications included chronic intraocular inflammation and superior corectopia. CONCLUSIONS: Our procedure appears to be a safe, accurate, stable, and efficacious option for the management of traumatic subluxated cataracts in adults. However, longer-term data are needed to evaluate the corneal endothelium.