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Search Results: 1 - 10 of 18499 matches for " Castro Navarro "
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Modelo de dorothea orem aplicado a un grupo comunitario a través del proceso de enfermería
Navarro Pe?a,Y.; Castro Salas,M.;
Enfermería Global , 2010, DOI: 10.4321/S1695-61412010000200004
Abstract: nursing has a tradition in the development of models and theories that dates to the nineteenth century. through the years, a number of experiences applying this history has also emerged. this helps to link theory and practice as well as to solidify the knowledge gained from research. along with this, a growing body of research has set out to prove what has been posited by theory, as well as providing a profile of nursing as a science of discipline and profession. the aim of this article is to shed light on the experience of applying the orem model in a community group of hypertensive patients, through the nursing process. for this, the three theories that make up the model have been used: "self-care theory" for assessment period, "self-care deficit theory" for the diagnostic period, and finally "systems theory" for the planning, implementation and evaluation of nursing intervention periods interventions. in this way, the theory provides theoretical guidance to nursing care delivery and the nursing process is the tool that allows them to deliver care through systematic and rational planning.
Spontaneous closure of stage IV idiopathic full-thickness macular hole and late reopening as a lamellar macular hole: a case report
Miriam García Fernández, Joaquín Castro Navarro
Journal of Medical Case Reports , 2012, DOI: 10.1186/1752-1947-6-169
Abstract: A 67-year-old Spanish man was referred to our hospital with a complaint of decreased vision in his right eye and metamorphopsia for approximately 11?months. He did not report any trauma. Diagnosis was based on fundoscopic and optical coherence tomography. They revealed a stage IV full-thickness idiopathic macular hole and a small epiretinal membrane. Three months later the hole spontaneously closed, and two years later we appreciated its reopening as a lamellar macular hole.The contraction of the epiretinal membrane could have contributed to cystic spaces and their fusion, subsequently, to the formation of a lamellar macular hole. To the best of our knowledge this is the first report in the literature of a spontaneously closed full-thickness idiopathic macular hole with reopening as a partial thickness macular defect.
Cirugía del agujero macular con y sin liberación de la membrana limitante interna
Castro Navarro,J; González Casta?o,C;
Archivos de la Sociedad Espa?ola de Oftalmología , 2003, DOI: 10.4321/S0365-66912003000300007
Abstract: purpose: to determine if internal limiting membrane (ilm) peeling in idiopathic macular hole surgery improves anatomic and functional results. methods: comparative retrospective, nonrandomized study, of 50 eyes from 48 patients with macular hole, stage iii an iv of the gass classification. all of them were operated with the same technique. in 25 eyes the ilm was peeled (group 1). in the other 25 eyes the ilm was not peeled (group 2). we compare the anatomic and functional outcome as well as the complications in both groups. results: the overall anatomic success rate in the 50 eyes was 92% (46 eyes). in group 1 the anatomic success rate was 100% and 84% in group 2 (p=0.018). the visual acuity improved, one or more snellen lines, in 34 of the 50 operated eyes (68%). in group 1 the visual acuity improved in 20 of the 25 eyes (80%) and in group 2 in 14 of the 25 eyes (56%) (p=0.034). the most relevant complications included retinal detachment, two cases in group 1 and one case in group 2, cataract and retinal pigment epithelium changes. conclusions: in our experience, internal limiting membrane peeling in macular hole surgery improves the anatomic and functional success, but not the final visual acuity.
Proceso tradicional de aderezo de aceitunas verdes de mesa. Racionalización del cocido
Jaramillo Carmona, S.,de Castro, A.,Rejano Navarro, L.
Grasas y Aceites , 2011, DOI: 10.3989/gya.114610
Abstract: In order for olives of the Manzanilla variety to be produced as Spanish-style, they require a previous storage period before their alkaline treatment with NaOH. This holding time prevents the breakage and shedding of the fruit epidermis, but at the same time, causes an increase in the number of olives with surface blemishes and, consequently, loss in product quality. The objectives of this work were to investigate, at industrial scale, different alternatives to the holding period; specifically, the use of low-concentration alkaline solutions before the real alkaline treatment, and the use of alkaline solutions at low temperatures for this alkaline treatment. Basic parameters of the fermentative processes carried out in every treatment were monitored, and commercial quality of the final product was ascertained. The results indicate that both modifications are alternatives to the traditional treatment, and the products obtained applying these modifications have the same or higher quality than those obtained by the traditional process. Las aceitunas Manzanillas, para su elaboración estilo espa ol, precisan de un periodo previo de reposo de los frutos antes del cocido o tratamiento alcalino con NaOH. Este periodo de reposo evita la rotura y desprendimiento de epidermis de los frutos pero, al mismo tiempo, provoca un aumento en el número de aceitunas con manchas superficiales y, consecuentemente, pérdida de calidad del producto. Los objetivos del presente trabajo fueron investigar, a escala industrial, alternativas al reposo previo; concretamente, la utilización de soluciones alcalinas de baja concentración antes del cocido y realizar este último con soluciones a temperatura reducida. Se analizaron los parámetros fundamentales de los procesos fermentativos obtenidos en cada caso y se determinó la calidad comercial de los productos finales. Los resultados obtenidos indican que ambas modificaciones constituyen alternativas al tratamiento tradicional con las que se obtienen productos de igual o superior calidad.
Cirugía del agujero macular con y sin liberación de la membrana limitante interna Macular hole surgery with and without internal limiting membrane peeling
J Castro Navarro,C González Casta?o
Archivos de la Sociedad Espa?ola de Oftalmología , 2003,
Abstract: Objetivo: Analizar si la liberación de la membrana limitante interna (MLI) en la cirugía del agujero macular idiopático mejora los resultados anatómicos y funcionales de la cirugía. Métodos: Estudio comparativo retrospectivo, no randomizado, sobre 50 ojos de 48 pacientes con agujero macular estadio III y IV de Gass, operados todos ellos con la misma técnica. En 25 ojos se realizó liberación de la MLI (grupo 1) y en los otros 25 no se liberó la ML1 (grupo 2). Se comparan la recuperación anatómica y funcional, así como las complicaciones en ambos grupos. Resultados: De los 50 ojos operados se consigue la recuperación anatómica (cierre del agujero) en el 92% (46 ojos). En el grupo 1 la recuperación anatómica fue del 100% de los casos, y del 84% en el grupo 2 (p=0,018). De todos los ojos operados mejoraron la agudeza visual en una o más líneas de Snellen, 34 ojos (68%). Se observó mejoría de la agudeza visual en 20 de los 25 ojos del grupo 1 (80%), y en el 14 de los 25 ojos del grupo 2 (56%) (p=0,034). Las complicaciones más importantes fueron el desprendimiento de retina en dos casos del grupo 1 y un caso del grupo 2, la catarata y los cambios a nivel del epitelio pigmentario de retina. Conclusiones: En nuestra experiencia la liberación de la MLI en la cirugía del agujero macular mejora los resultados anatómicos y funcionales, pero no la agudeza visual final. Purpose: To determine if internal limiting membrane (ILM) peeling in idiopathic macular hole surgery improves anatomic and functional results. Methods: Comparative retrospective, nonrandomized study, of 50 eyes from 48 patients with macular hole, Stage III an IV of the Gass Classification. All of them were operated with the same technique. In 25 eyes the ILM was peeled (group 1). In the other 25 eyes the ILM was not peeled (group 2). We compare the anatomic and functional outcome as well as the complications in both groups. Results: The overall anatomic success rate in the 50 eyes was 92% (46 eyes). In group 1 the anatomic success rate was 100% and 84% in group 2 (p=0.018). The visual acuity improved, one or more Snellen lines, in 34 of the 50 operated eyes (68%). In group 1 the visual acuity improved in 20 of the 25 eyes (80%) and in group 2 in 14 of the 25 eyes (56%) (p=0.034). The most relevant complications included retinal detachment, two cases in group 1 and one case in group 2, cataract and retinal pigment epithelium changes. Conclusions: In our experience, internal limiting membrane peeling in macular hole surgery improves the anatomic and functional success, but not the final visual acuity.
ANáLISIS PALEOPARASITOLóGICO DE LA MUSCULATURA ESQUELéTICA DE LA MOMIA DEL CERRO EL PLOMO, CHILE: TRICHINELLA SP
Rodríguez,Héctor; Noemí,Isabel; Cerva,José Luis; Espinoza-Navarro,Omar; Castro,María Eugenia; Castro,Mario;
Chungará (Arica) , 2011, DOI: 10.4067/S0717-73562011000300013
Abstract: the cerro el plomo mummy is an inca (1,500 ad) child of about 8 to 9 years old. the boy was found near the top of cerro el plomo, santiago, in the year 1954 and is now under the care of the museo nacional de historia natural, chile. in september 2003, as part of a larger study, we examined muscle tissue samples of this mummy. samples were fixed in formol (ph 7.2) and processed by routine histological techniques, obtaining 5 μm thick-sections that were stained with hematoxylin-eosin and processed for immunohistochemical analysis. the histological examination revealed the presence of cystic structures with capsules. through indirect immunofluorescence (ifi) with human hyperimmune serum to trichinella sp. the presence of trichinosis was demonstrated. this conclusion was later confirmed by parasitologists with extensive experience in pediatric parasitology. finally, although it is difficult to explain the presence of this parasite in our continent in pre-columbian times, this finding is a real milestone in world paleoparasitology.
A human ribonuclease induces apoptosis associated with p21WAF1/CIP1 induction and JNK inactivation
Jessica Castro, Marc Ribó, Susanna Navarro, Maria Nogués, Maria Vilanova, Antoni Benito
BMC Cancer , 2011, DOI: 10.1186/1471-2407-11-9
Abstract: Cytotoxicity was measured by the MTT method and by the tripan blue exclusion assay. Apoptosis was assessed by flow cytometry, caspase enzymatic detection and confocal microscopy. Cell cycle phase analysis was performed by flow cytometry. The expression of different proteins was analyzed by western blot.We show that the cytotoxicity of PE5 is produced through apoptosis, that it does not require the proapoptotic activity of p53 and is not prevented by the multiple drug resistance phenotype. We also show that PE5 and onconase induce cell death at the same extent although the latter is also able to arrest the cell growth. We have compared the cytotoxic effects of both ribonucleases in the NCI/ADR-RES cell line by measuring their effects on the cell cycle, on the activation of different caspases and on the expression of different apoptosis- and cell cycle-related proteins. PE5 increases the number of cells in S and G2/M cell cycle phases, which is accompanied by the increased expression of cyclin E and p21WAF1/CIP1 together with the underphosphorylation of p46 forms of JNK. Citotoxicity of onconase in this cell line does not alter the cell cycle phase distribution and it is accompanied by a decreased expression of XIAPWe conclude that PE5 kills the cells through apoptosis associated with the p21WAF1/CIP1 induction and the inactivation of JNK. This mechanism is significantly different from that found for onconase.Members of the pancreatic ribonuclease (RNase) superfamily display an array of biological activities ranging from cytotoxicity to angiogenesis. Among them, cytotoxicity is one of the most attractive since such enzymes could be used, alone or conjugated to ligands or antibodies, as non-mutagenic therapeutic agents for cancer treatment (for a review, see [1]). Among the different natural or engineered RNases described to be cytotoxic, the case of onconase, a monomeric RNase isolated from Rana pipiens (northern leopard frog), is paradigmatic. This drug manifests cyt
Adaptación socioemocional en escolares: evaluación de un instrumento nuevo en la provincia de Concepción
Mathiesen,M. Elena; Merino,José; Castro,Ginette; Mora,Olga; Navarro,Gracia;
Estudios pedagógicos (Valdivia) , 2011, DOI: 10.4067/S0718-07052011000200003
Abstract: this study illustrates psychometrical findings from a 2007 instrument applied to measure socio-emotional adaptation in children over 10 years old. an item-evaluation of the socio-emotional adaptation of these students is also included. this scalar instrument was developed in prior qualitative research performed by the udec talent program team of psychologists. it was applied to a sample of 1010 students pre-selected by their teachers as gifted student, grades 5-11, in four cohorts from 2007 to 2010. factorial analysis indicated three factors slightly different from the original three subscales; four out of 27 items had to be eliminated, reducing to 23 the final number of items in the questionnaire. since scale reliability was high and the validity indicators were adequate, the instrument has been shown to satisfactorily measure children's socio-emotional adaptation to the chilean social reality. the socio-emotional adaptation observed was moderately high.
Estudio comparativo de la utilización biologica de ?-caroteno sintético y de fuentes naturales en ratas
Baracaldo Barrera,Cesar Mauricio; Rozo,Camilo; Castro de Navarro,Lucía;
Archivos Latinoamericanos de Nutrición , 2002,
Abstract: comparative study of the biological utilization of ?-carotene from synthetic and natural sources in rats. the purpose of this study was to evaluate the change in concentration of retinol and ?-carotene (bc) in blood serum and liver tissue of rats, after supplementation with synthetic bc and commonly consumed carotenoid-rich vegetables (carrot and spinach). weanling male wistar rats were randomly assigned in four groups of 16 rats each. the four groups of rats were supplemented according to the following feeding treatments: 1) control group (0g), 0.2 ml corn oil; 2) pure bc group (bcg), 60 μg re in 0.2 ml corn oil; 3) carrot group (cg), 60 μg re in 0.2 ml corn oil; 4) spinach group (sg), 60 μg re in 0.2 ml corn oil. analysis of retinol and bc contents in serum and liver was performed by hplc procedures. the variance analysis showed no significant differences ((=0.05) in the increase of weight of the animals and in the increase of retinol and bc levels in serum and in liver of the four treatments during the four weeks of supplementation. the correlation analysis between levels of retinol and bc in serum and in liver showed no relation between these two parameters. a regression analysis of liver bc levels in the four treatments showed the following slopes of the regression lines: bcg, 0.909; cg, 0.451; sg, 0.444, and 0g, 0.203. these results indicate that the highest bc absorption was in the bcg treatment, whereas the bc absorption in the cg and sg treatments was approximately one half.
Lente fácica de camara posterior para corre??o da miopia
Guimar?es, Ricardo Queiroz;Castro, Raul D.;Navarro, Marcelo P.;Guimar?es, Márcia Reis;
Arquivos Brasileiros de Oftalmologia , 2001, DOI: 10.1590/S0004-27492001000100005
Abstract: purpose: to examine the efficacy, predictability and safety of posterior chamber phakic intraocular lens implantation in patients with moderate and high myopia. methods: we analyzed the results of 93 eyes of 54 patients who were submitted to the implantation of a posterior chamber phakic lens for the correction of their myopia. the target postoperative spherical equivalent refraction was emmetropia. mean follow-up was 9 months (ranging from 1 to 38 months) results: the mean preoperative spherical equivalent refraction was -13.56 d (ranging from -5.75 to-20.38 d) and the mean postoperative spherical equivalent at the last visit was -0.92 d (ranging from -3.38 to +1.00 d) with 39 eyes (41.9%) within ± 0.50 d, 64 eyes (68.8%) within ±1.00 d of emmetropia and 88 eyes (94.6%) within ± 2.00 d. a gain of more than two lines of visual acuity was seen in 45.17% (42 eyes) at last examination. complications occurred in 15 eyes (16.1%): loss of endothelial cells in 2 eyes (2.2%), pupillary block in 2 eyes (2.2%) and loss of crystalline lens transparency in 11 eyes (11.8%) which caused visual symptoms in 6 eyes (6.5%) only. conclusion: posterior chamber phakic lens is an effective, predictable and safe method for reducing or correcting moderate and high myopia. gains in visual acuity were significant. longer follow-up in a larger number of eyes will help to better address long-term stability of the results.
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