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Search Results: 1 - 10 of 540230 matches for " Domingo; Urzúa V "
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CERVICO HISTEROPEXIA SACRA CON REPARACIóN PARAVAGINAL
Laíz R,Domingo; Urzúa V,Fernando;
Revista chilena de obstetricia y ginecología , 2006, DOI: 10.4067/S0717-75262006000100006
Abstract: it is showed the case of a patient with complete genital prolapse with a heavy uterine component; besides, the woman shows a secondary sexual dysfunction but she wants to preserve the uterus because of the incomplete parity. a cervicosacropexia is carried out with a prolene mesh. because of repairing a paravaginal imperfection a good uterine suspension is achieved. six months after the operation, the patient does not have prolapse. she does not show any sign of her previous dysfunction. the woman is in good sexual condition and plans a future pregnancy
CERVICO HISTEROPEXIA SACRA CON REPARACIóN PARAVAGINAL
Domingo Laíz R,Fernando Urzúa V
Revista Chilena de Obstetricia y Ginecología , 2006,
Abstract: Se presenta el caso de una paciente con diagnóstico de prolapso genital completo con marcado componente uterino y disfunción sexual secundaria, quien desea conservación de este órgano por paridad incompleta. Se realiza cervicosacropexia con malla de prolene y reparación de defecto paravaginal logrando buena suspensión uterina. La paciente a los seis meses de operada se encuentra sin prolapso. Se mantiene asintomática con buena función sexual y en planificación de un próximo embarazo It is showed the case of a patient with complete genital prolapse with a heavy uterine component; besides, the woman shows a secondary sexual dysfunction but she wants to preserve the uterus because of the incomplete parity. A cervicosacropexia is carried out with a prolene mesh. Because of repairing a paravaginal imperfection a good uterine suspension is achieved. Six months after the operation, the patient does not have prolapse. She does not show any sign of her previous dysfunction. The woman is in good sexual condition and plans a future pregnancy
Evaluation of organophosphorus and synthetic pyrethroid insecticides against six vector mosquitoe species
Montada Dorta,Domingo; Vasuki,V.; Rajavel,A.;
Revista de Saúde Pública , 1993, DOI: 10.1590/S0034-89101993000600001
Abstract: three organophosphorus compounds- malathion, folithion and temephos- and two synthetic pyrethroids- alphamethrin and deltamethrin- were used for monitoring the susceptibility status of larvae and adults of six vector mosquitoe species: culex quinquefasciatus (filariasis) and aedes albopictus (dengue) (both laboratory and field strains); laboratory strains of aedes aegypti (dengue), anopheles slephensi and anopheles culicifacies (malaria), and culex tritaeniorhynchus (japanese encephalitis) in india. from the lc50 values obtained for these insecticides, it was found that all mosquito species including the field strains of cx. quinquefasciatus and ae. albopictus were highly susceptible except for cx. quinquefasciatus (field strain) against malathion, 100% mortality was observed at the discriminating dosages recommended by world health organization. the residual effect of alphamethrin, deltamethrin, malathion and folithion at 25 mg (ai)/m2 on different surfaces against six species of vector mosquitoes showed that alphamethrin was the most effective on all four treated surfaces (mud, plywood, cement and thatch). nevertheless, residual efficacy lasted longer on thatch than on the other surfaces. therefore, synthetic pyrethroids such as alphamethrin can be effectively employed in integrated vector control operations.
Evaluation of organophosphorus and synthetic pyrethroid insecticides against six vector mosquitoe species
Montada Dorta Domingo,Vasuki V.,Rajavel A.
Revista de Saúde Pública , 1993,
Abstract: Three organophosphorus compounds- malathion, folithion and temephos- and two synthetic pyrethroids- alphamethrin and deltamethrin- were used for monitoring the susceptibility status of larvae and adults of six vector mosquitoe species: Culex quinquefasciatus (Filariasis) and Aedes albopictus (Dengue) (both laboratory and field strains); laboratory strains of Aedes aegypti (Dengue), Anopheles slephensi and Anopheles culicifacies (Malaria), and Culex tritaeniorhynchus (Japanese encephalitis) in India. From the LC50 values obtained for these insecticides, it was found that all mosquito species including the field strains of Cx. quinquefasciatus and Ae. albopictus were highly susceptible Except for Cx. quinquefasciatus (field strain) against malathion, 100% mortality was observed at the discriminating dosages recommended by World Health Organization. The residual effect of alphamethrin, deltamethrin, malathion and folithion at 25 mg (ai)/m2 on different surfaces against six species of vector mosquitoes showed that alphamethrin was the most effective on all four treated surfaces (mud, plywood, cement and thatch). Nevertheless, residual efficacy lasted longer on thatch than on the other surfaces. Therefore, synthetic pyrethroids such as alphamethrin can be effectively employed in integrated vector control operations.
A Structure-Activity Study of Antibacterial Diterpenoids
Alejandro Urzúa,Marcos C. Rezende,Carolina Mascayano,Loretta Vásquez
Molecules , 2008, DOI: 10.3390/molecules13040822
Abstract: An analysis of the antibacterial activities of 15 terpenoids, eleven of which werepreviously described by us and four were extracted from the literature, suggested twostructural requirements for activity of these and related compounds: a hydrophobic moiety,consisting of a substituted decalin skeleton, and a hydrophilic region possessing onehydrogen-bond-donor group. These structural requirements are responsible for an optimalinsertion of these and related compounds into cell membranes, as suggested by the resultsof docking some of these compounds into a model phospholipid bilayer.
Sífilis ocular: Presentación de diez casos y revisión de la literatura Ocular syphilis: Ten new cases and review of the literature
Pablo Romero C,Cristhían Urzúa S,Patricia Gallardo V,Juan Verdaguer T
Revista chilena de infectología , 2010,
Abstract: Introducción: Las manifestaciones oculares de los pacientes con sífilis pueden comprometer cualquiera de las estructuras del ojo. Objetivos: Describir diez nuevos casos de sífilis con compromiso ocular y realizar una breve discusión de su manejo y tratamiento. Pacientes y Métodos: Se estudiaron, de forma retrospectiva, diez casos en un período de 13 a os. Se evaluaron factores demográficos, exámenes oftalmológico y de laboratorio. Resultados: De los diez casos, 7 eran hombres y 3 mujeres. El promedio de edad fue de 39,7 a os. Las presentaciones fueron: panuveítis (n: 6), neuritis óptica (n: 3), vasculitis retinal (n: 1) y pupila de Argyll-Robertson (n: 1). Se obtuvo VDRL (+) en líquido cefalorraquídeo en 6 pacientes y serología para VIH (+) en 3 pacientes. Conclusiones: La sífilis puede producir variadas manifestaciones oftalmológicas. No en todos los casos el VDRL resultó positivo en el LCR. El tratamiento anti-treponémico produce una rápida y efectiva respuesta en los pacientes afectados. Introduction: Ocular manifestations in patients with syphilis may involve almost any of the structures of the eye. Objectives: To describe ten new cases of syphilis with eye involvement and to briefly discuss the management and therapy of such condition. Material and Methods: Ten cases were retrospectively studied over 13 years. Demographic factors, ophthalmologic examination, and laboratory tests were assessed. Results: Seven of the 10 cases were male and 3 were female. The mean age of patients was 39,7 years. Disease presentation included: panuveitis (6 patients), optic neuritis (3), retinal vasculitis (1) and Argyll-Robertson pupil (1). Cerebrospinal fluid VDRL test was positive in 6 patients and 3 patients were HIV (+). Conclusions: Syphilis is able to display diverse ophthalmologic manifestations. Not in all the cases the CSF-VDRL test was positive. Antitreponemal therapy generates a fast and effective response in the affected patients.
ABSCESO EPIDURAL LUMBAR POST HERNIA DISCAL TRAUMáTICA: CASO CLíNICO
Sajama l,Carlos; Munjin L,Milán; Marré P,Bartolomé; Arriagada V,Víctor; Urzúa B,Alejandro;
Revista chilena de radiología , 2009, DOI: 10.4067/S0717-93082009000100007
Abstract: we report the case of a 42-year-old male patient presenting with trauma history and lumbar spine axial compression which caused a herniated nucleus pulposus at lumbar level, revealed through mri. after a four-day evolution period, fever and laboratory alterations indicative otan infectious process appear without signs of neurologic involvement. hemoculture was positive for staphylococcus aureus and mri showed the presence of a lumbar spinal abscess secondary to infected epidural hematoma. the patient was treated with antibiotics, being given ceftriaxone, metronidazol, and gentamicin as an initial theraphy switched subsecuently to cloxaciline and cefazoline, he showed a favourable evolution, completing a six-week period of endovenous treatment plus fourweeks receiving oral therapy the patient was discharged in good condition with no neurologic deficit.
FACTORES DE SUELO Y PLANTA PARA DETERMINAR LA FERTILIZACIóN NITROGENADA EN MAíZ DULCE EN LA ZONA CENTRAL DE CHILE
Opazo A,José Domingo; Luchsinger L,Alfredo; Neira V,Orlando;
Idesia (Arica) , 2008, DOI: 10.4067/S0718-34292008000200007
Abstract: it is very important developing adequate methodologies for achieving optimum fertilizer use, involving optimal but not excessive rates so as to have a maximum production without risk of polluting the agricultural systems. one of them is based on the stanford (1973) procedure, subsequently developed in chile as the demand-supply model. the objective of this was to study the parameters for application of the model, based on: n concentration in different plant tissues, estimation of internal nitrogen requirements (inr) in two cultivars of sweet corn (zea mays l. var. saccharata k?rn) and nitrogen demand. the value of inr were 1.69 and 1.65% and n demands considering ears with husks were 223 kg n ha-1 and 165 kg n ha-1 in cv. jubilee and cv. rodeo, respectively. for treatments: 0 and 240 kg n ha-1, the efficiency of n fertilizers (55%) and n supply of the soil were calculated (80 kg n ha-1). rate 240 kg n ha-1 was the optimal for sweet corn production under these experimental conditions.
FACTORES DE SUELO Y PLANTA PARA DETERMINAR LA FERTILIZACIóN NITROGENADA EN MAíZ DULCE EN LA ZONA CENTRAL DE CHILE SOIL AND PLANT FACTORS FOR DETERMINE THE NITROGEN FERTILIZATION ON SWEET CORN IN THE CENTRAL ZONE OF CHILE
José Domingo Opazo A,Alfredo Luchsinger L,Orlando Neira V
IDESIA , 2008,
Abstract: Es muy importante desarrollar metodologías adecuadas que permitan realizar un uso óptimo de los fertilizantes, lo cual significa aplicar dosis óptimas, pero no excesivas, para tener una máxima producción, sin riesgo de contaminación. Una de éstas se fundamenta en el procedimiento de Stanford (1973), desarrollado posteriormente en Chile como modelo demanda-suministro. Los objetivos de este estudio fueron determinar los parámetros para la aplicación del modelo, estos son concentración del N en los diferentes tejidos de la planta, calcular los requerimientos internos de nitrógeno (RIN) en dos cultivares de maíz dulce (Zea mays L. var. saccharata K rn.) y se calcularon las demandas de N para los rendimientos máximos. Los valores de RIN fueron de 1,69 y 1,94% y las demandas de N considerando mazorcas con chalas fueron 223 y 165 kg N ha-1 para los cv. Jubilee y cv. Rodeo, respectivamente. A partir de los tratamientos: dosis 0 y 240 kg N ha-1 se estimó la eficiencia del N fertilizante (55%) y el suministro del suelo (80 kg de N ha-1). La dosis de 240 kg N ha-1 para estas condiciones experimentales fue la óptima para la producción de maíz dulce. It is very important developing adequate methodologies for achieving optimum fertilizer use, involving optimal but not excessive rates so as to have a maximum production without risk of polluting the agricultural systems. One of them is based on the Stanford (1973) procedure, subsequently developed in Chile as the demand-supply model. The objective of this was to study the parameters for application of the model, based on: N concentration in different plant tissues, estimation of internal nitrogen requirements (INR) in two cultivars of sweet corn (Zea mays L. var. saccharata K rn) and nitrogen demand. The value of INR were 1.69 and 1.65% and N demands considering ears with husks were 223 kg N ha-1 and 165 kg N ha-1 in cv. Jubilee and cv. Rodeo, respectively. For treatments: 0 and 240 kg N ha-1, the efficiency of N fertilizers (55%) and N supply of the soil were calculated (80 kg N ha-1). Rate 240 kg N ha-1 was the optimal for sweet corn production under these experimental conditions.
Prevalencia de caries en escolares de 6 a 15 a os, Isla de Pascua Caries prevalence in 6 to 15 year-old school children, from Easter Island
V Gómez González,R Cabello Ibacache,G Rodríguez Martínez,I Urzúa Araya
Revista Clínica de Periodoncia, Implantología y Rehabilitación Oral , 2012,
Abstract: Objetivo: El objetivo de este estudio fue determinar la prevalencia y severidad de caries de piezas permanentes y algunos factores de riesgo relacionados en un grupo de escolares de Isla de Pascua. Materiales y Métodos: 116 ni os de 6 a 15 a os de edad fueron seleccionados al azar. Se efectuó examen clínico individualizado y se registraron los índices COP-D, significante de caries (SIC), de Higiene Oral de Greene y Vermillon (G-V) y se realizó una encuesta de dieta. Para conocer la frecuencia y recuento de Streptococcus mutans y Streptococcus sobrinus, se tomaron muestras de saliva estimulada a 23 ni os Rapa Nui elegidos al azar. Finalmente, se analizaron muestras de agua potable en 3 sitios distintos de la isla para medir la cantidad de flúor disponible. Resultados: La prevalencia de caries en piezas permanentes fue 38%. El COP-D fue 1.19. El valor promedio del G-V fue 1.63. Se aisló e identificó S. mutans y S. sobrinus en el 56.2% y 13.2% respectivamente. El recuento promedio para S. mutans fue de 3.3x105 UFC/ml saliva y para S. sobrinus fue de 7.2x104 UFC/ml. Se observó un promedio de 0.223 ppm/Fluoruro en el agua. Desviación Estándar 0.025 ppm. Según la encuesta de dieta el 30% de los ni os presenta bajo riesgo de caries, el 47% presenta mediano riesgo y el 23% presenta alto riesgo. Conclusión: El 38% presenta historia de caries en piezas permanentes. El COP-D promedio es 1.19. En ni os Rapa Nui 0.9 y en No Rapa Nui 1.77. Aim: The aim of this study was to determine the prevalence and severity of caries and some related risk factors in a group of school children from Easter Island. Materials and Methods: 116 children aged 6 to 15 years were randomly selected. Individual clinical examination was performed and index COP-D, significant caries index (SIC), Greene and Vermillon Oral Hygiene index (GV) were recorded. A diet survey was performed. To determine the frequency and count of Streptococcus mutans and Streptococcus sobrinus, stimulated saliva samples were collected from 23 Rapa Nui children randomly selected. Finally, samples of drinking water in 3 different places of the island were analyzed to measure the amount of fluoride available. Results: Caries prevalence was 38%. COP-D index was 1.19. The mean value of G-V was 1.63. S. mutans and S. sobrinus were isolated and identified in 56.2% and 13.2% of the samples, respectively. The average count for S. mutans was 3.3 x105 CFU/ml saliva and for S. sobrinus was 7.2 x104 CFU/ml. A mean of 0.223 Standard Deviation 0.025 ppm/Fluoride was observed in drinking water. According to the diet survey, 30% of ch
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