oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 73 )

2018 ( 484 )

2017 ( 510 )

2016 ( 758 )

Custom range...

Search Results: 1 - 10 of 326950 matches for " Flavia; Carrasco S "
All listed articles are free for downloading (OA Articles)
Page 1 /326950
Display every page Item
Efecto de Cuatro Niveles de Sombreamiento sobre la Calidad de Vara y Bulbo de Dos Cultivares de Lilium (Lilium spp.)
Schiappacasse C,Flavia; Carrasco S,Gilda; Carrasco C,Fabiola;
Agricultura Técnica , 2006, DOI: 10.4067/S0365-28072006000400003
Abstract: lilium spp. hybrids are important export products among the chilean cut flower exports. field plantations are often shaded to reduce temperature; however, the best shading percentage to attain a good quality cut flower and also a good quality bulb is unknown. this study assessed the cut flower quality of two lilium spp. hybrid cultivars, cv. dreamland belonging to the asiatic group and cv. alhambra of the oriental group, cultivated in the vii region (35°17? s lat, 71°13? w long) under shading nets of 35, 50, 65, and 80% shading, and a control treatment without shade. the perimeter and weight of the bulbs were recorded at one, four and eight weeks after flower harvest. in both cultivars the plants grown under 65 and 80% shade were significantly taller, with no differences in both stem diameter and number of florets per stem among all the treatments. bulb weight in both cultivars was higher in the control and 35% shade treatments. the bulb perimeter of cv. dreamland was higher in the control and 35% shade treatments, and showed higher values at each subsequent evaluation. in cv. alhambra, the perimeter of the bulbs of the different treatments was similar in all treatments in the last evaluation performed eight weeks after flower harvest. in double purpose crops, attaining good quality in both cut flowers and bulbs are contradictory; in this case it is proposed the use of 50% shade.
Efecto de Cuatro Niveles de Sombreamiento Sobre la Calidad de VAra Floral y Cormo de Liatris (Liatris spicata)
Schiappacasse C,Flavia; Carrasco S,Gilda; Carrasco C,Fabiola;
Agricultura Técnica , 2007, DOI: 10.4067/S0365-28072007000100013
Abstract: liatris spicata (l.) willd. was introduced to chile as a cut flower crop more than a decade ago. it is commonly field-planted in consecutive plantings during spring and summer. the propagation structure is a corm that is reused in subsequent plantings. other field crops are shaded to reduce the temperature, but in liatris, the effect of shading under our conditions on both cut flowers and corms is unknown. the present study assessed the cut flower quality of l. spicata cultivated in the vii region (35°33? s lat, 71°13? w long), chile, utilizing nets providing 35, 50, 65 and 80% shade, plus a control treatment without shade. as well, the weight of the corms was recorded one, four and eight weeks after flower harvest. the effect of shade on flower quality was evident at harvest time; the plants that grew at full sun had longer spikes and greater stem diameters. the weight of corms at the third evaluation was greatest in the control treatment, and at the first evaluation these values were lower than in the last evaluation. as the shade negatively affected both flower quality and corm weight, it was concluded that shading nets should not be recommended under the experimental conditions.
Efecto de Cuatro Niveles de Sombreamiento sobre la Calidad de Vara y Bulbo de Dos Cultivares de Lilium (Lilium spp.) Effect of Four Shading Levels on Flower Stem and Bulb Quality of Two Lilies (Lilium spp.) Cultivars
Flavia Schiappacasse C,Gilda Carrasco S,Fabiola Carrasco C
Agricultura Técnica , 2006,
Abstract: Los híbridos de Lilium spp. son importantes productos de exportación de la floricultura chilena. En cultivos al aire libre se suele sombrear para reducir la temperatura, sin embargo se desconoce el grado de sombreamiento adecuado para lograr buena calidad de varas florales y de bulbos. El presente estudio evaluó la calidad de las varas florales de dos cultivares híbridos de Lilium spp., el cv. Dreamland de tipo asiático y el cv. Alhambra de tipo oriental, cultivados en la VII Región (35°17’ lat. Sur, 71°17’ long. Oeste) bajo diferentes niveles de sombreamiento, utilizando mallas de 35; 50; 65; y 80% de sombra y un testigo sin malla. Además se midió el perímetro y peso de los bulbos al cabo de una, cuatro y ocho semanas después de la cosecha de flores. En ambos cultivares las plantas cultivadas bajo mallas de 65 y 80% de sombra fueron significativamente más altas, sin diferencias significativas en diámetro y cantidad de botones por vara entre los tratamientos. El peso de bulbos en ambos cultivares fue superior en los tratamientos control y 35% de sombra. El perímetro de los bulbos del cv. Dreamland presentó valores superiores en el tratamiento testigo y bajo malla de 35% de sombra. En el cv. Alhambra el perímetro de los bulbos de los distintos tratamientos fue similar en la evaluación realizada a las ocho semanas después de la cosecha de las flores. En cultivos de doble propósito, el objetivo calidad de la flor se contrapone con perímetro del bulbo, en este caso se propone utilizar mallas de 50% de sombra. Lilium spp. hybrids are important export products among the Chilean cut flower exports. Field plantations are often shaded to reduce temperature; however, the best shading percentage to attain a good quality cut flower and also a good quality bulb is unknown. This study assessed the cut flower quality of two Lilium spp. hybrid cultivars, cv. Dreamland belonging to the Asiatic group and cv. Alhambra of the Oriental group, cultivated in the VII Region (35°17’ S lat, 71°13’ W long) under shading nets of 35, 50, 65, and 80% shading, and a control treatment without shade. The perimeter and weight of the bulbs were recorded at one, four and eight weeks after flower harvest. In both cultivars the plants grown under 65 and 80% shade were significantly taller, with no differences in both stem diameter and number of florets per stem among all the treatments. Bulb weight in both cultivars was higher in the control and 35% shade treatments. The bulb perimeter of cv. Dreamland was higher in the control and 35% shade treatments, and showed higher values at each subs
Efecto de Cuatro Niveles de Sombreamiento Sobre la Calidad de VAra Floral y Cormo de Liatris (Liatris spicata) Effect of Four Shading Levels on Flower Stem and Corm Quality of Liatris (Liatris spicata)
Flavia Schiappacasse C,Gilda Carrasco S,Fabiola Carrasco C
Agricultura Técnica , 2007,
Abstract: El cultivo de Liatris spicata (L.) Willd. para flor cortada fue introducido en Chile hace más de una década. Se suele plantar en forma escalonada al aire libre en primavera y verano. Su estructura de propagación corresponde a un cormo, el cual se reutiliza en la siguiente plantación. Otros cultivos al aire libre se sombrean para reducir la temperatura, pero en liatris se desconoce el efecto del sombreamiento en nuestras condiciones, tanto para la vara floral como para el cormo. El presente estudio evaluó la calidad de las varas florales de L. spicata, cultivadas en la VII Región (35°33’ lat. Sur, 71°13’ long. Oeste) bajo diferentes niveles de sombra, utilizando mallas de 35; 50; 65 y 80% de sombra y un testigo sin sombra. Además se midió el peso de los cormos al cabo de una, cuatro y ocho semanas después de la cosecha de flores. El efecto de la sombra sobre la calidad de las varas se manifestó al momento de cosecha, encontrándose una mayor longitud de espiga y diámetro de varas en las plantas que crecieron a pleno sol. El peso de cormos en la tercera evaluación fue superior en el tratamiento testigo, y en la primera evaluación los valores fueron inferiores a los de la última evaluación. La sombra afectó negativamente la calidad de flores y el peso del cormo, por lo que se concluye que en las condiciones del presente experimento no se recomienda el uso de mallas sombreadoras para su cultivo. Liatris spicata (L.) Willd. was introduced to Chile as a cut flower crop more than a decade ago. It is commonly field-planted in consecutive plantings during spring and summer. The propagation structure is a corm that is reused in subsequent plantings. Other field crops are shaded to reduce the temperature, but in liatris, the effect of shading under our conditions on both cut flowers and corms is unknown. The present study assessed the cut flower quality of L. spicata cultivated in the VII Region (35°33’ S lat, 71°13’ W long), Chile, utilizing nets providing 35, 50, 65 and 80% shade, plus a control treatment without shade. As well, the weight of the corms was recorded one, four and eight weeks after flower harvest. The effect of shade on flower quality was evident at harvest time; the plants that grew at full sun had longer spikes and greater stem diameters. The weight of corms at the third evaluation was greatest in the control treatment, and at the first evaluation these values were lower than in the last evaluation. As the shade negatively affected both flower quality and corm weight, it was concluded that shading nets should not be recommended under the experime
Planeamiento neuroquirúrgico informático: resultados con su utilización
Sánchez González,Federico; Domitrovic,Luis; Funes,Tomás; Clar,Flavia; Carrasco,Edgar; Di Masi,Gilda;
Revista argentina de neurocirug?-a , 2009,
Abstract: objective: to describe the results obtained with the method of computerized neurosurgical planning in a group of patients with intracranial pathology. method: 10 patients (7 men and 3 women, median age 60,2 years) presenting intracranial lesions (1 abscess, 5 intra-axial and 4 extra-axial tumors) were operated on. images of ct and/ or mri in dicom format were obtained before each surgery. they were processed with a software (mricro v1.40) generating three-dimensional reconstructions of the head of the patients. intracranial regions of interest were defined, projecting them towards the surface. a photograph of the patient and the 3d reconstruction were then merged, allowing us to plan the most indicated site for the incision and craniotomy. in the cases without cortical expression, the planning was made with this technique combined with stereotaxis. results: in all the cases, the incisions and craniotomies were adequate to reach the surgical targets. when comparing this method with the stereotactic, coincidence was observed in the planning of the approach. all the patients evolved without new or added postoperative neurological deficit. conclusion: the computerized neurosurgical planning allowed an adequate location of the intracranial lesions in a simple way, and with a low cost.
Malformación de Chiari y siringomielia: experiencia 2000-2008
Luis Domitrovic,Bladimir Gandarillas,Flavia Clar,Edgar Carrasco
Revista Argentina de Neurocirugía , 2009,
Abstract: Objetive. To describe the postoperative outcome of patients with Chiari malformation (CM) and/or syringomyelia (SM). Methods. The clinical records of patients with CM and SM, treated from 2000 to 2008, were retrospectively reviewed. Data about sex, age, previous history, admission symptoms, magnetic resonance imaging (MRI), treatment modalities, outcome (Odom′s scale) and postoperative complications were collected. Results. We treated 17 patients (1 varón, 16 mujeres); mean age: 39 years old (10-66). The admission symptoms were: pain in 11 cases, cerebellum/brain stem in 4 cases and spinal cord in 14 cases. Diagnosis was made by MRI: CM type I with SM 9 cases, CM I without SM 6 cases, CM type II with SM 1 case and idiopathic SM 1 case. MC II had myelomeningocele and ventricular shunting surgery at 3 months old. In 15 cases we performed a suboccipital craniectomy with duraplasty and C1 posterior arch resection (n:12) or C1-C2 posterior arch resection (n:3). One case had surgery at another institution and 1 case was not operated because symptoms did not progressed. SM persisted in 4 of the operated cases; in 3 of them a syringopleural shunting (SPS) was performed. In the idiopathic SM a SPS was also performed, but it became obstructed 3 months later. Complications were: meningitis 1 case, CSF fistula 1 case and meningitis + CSF fistula 1case. In CM outcome after 1 year was: excellent-good in 13 cases, fair in 1 case and poor in 2 cases. Conclusion. In patients with CM and/or SM, postoperative clinical outcome was excellent-good in 13/16 cases.
UNA HERRAMIENTA DE DIAGNóSTICO PARA ENLACES DE SUSCRIPCIóN DIGITAL ASIMéTRICA (ADSL)
Medina Carrasco,Mario; Carrasco Sternsdorff,Andrés;
Ingeniare. Revista chilena de ingeniería , 2009, DOI: 10.4067/S0718-33052009000100013
Abstract: we present the culineanalyzersoftware, a diagnostic tool for adsl links that leverages the dmt subchannel signal-to-noise ratio (snr) measurements made by the atus themselves. these measurements are read via remote access and are logged into a central server, from which they can be displayed under operator control, so the pertinent diagnosis can be performed. an important strength of this tool is that it can store measurements performed at different times for long periods, so as to detect sporadic conditions, spurious errors and line condition trends. this tool has been used successfully to monitor a bank of alcatel speedtouch adsl modems. the tool's modular design and parametric operation makes it easy to adapt it to new adsl modem and dslam models.
UNA HERRAMIENTA DE DIAGNóSTICO PARA ENLACES DE SUSCRIPCIóN DIGITAL ASIMéTRICA (ADSL) A DIAGNOSTIC TOOL FOR ASYMMETRIC DIGITAL SUBSCRIBER LINE LINKS
Mario Medina Carrasco,Andrés Carrasco Sternsdorff
Ingeniare : Revista Chilena de Ingeniería , 2009,
Abstract: Se presenta el software CuLineAnalyzer, una herramienta de diagnóstico para enlaces ADSL que aprovecha las mediciones de las razones se al-ruido (SNR) de los subcanales de la técnica de transmisión DMT realizadas por las propias unidades de terminación ADSL (ATU). Estos datos son adquiridos remotamente y se almacenan en una estación central, desde donde pueden ser desplegados a solicitud del operador, el cual los utiliza para realizar los diagnósticos pertinentes. Una fortaleza importante de esta herramienta es la capacidad de almacenar mediciones realizadas a diferentes horas del día durante largos períodos para detectar así condiciones esporádicas, errores espurios y tendencias en la condición de la línea. Esta herramienta ha sido usada con éxito para monitorear un banco de módems ADSL Alcatel SpeedTouch. El dise o modular y operación paramétrica de la herramienta permite adaptarla fácilmente a nuevos modelos de módems ADSL y DSLAMs. We present the CuLineAnalyzer software, a diagnostic tool for ADSL links that leverages the DMT subchannel signal-to-noise ratio (SNR) measurements made by the ATUs themselves. These measurements are read via remote access and are logged into a central server, from which they can be displayed under operator control, so the pertinent diagnosis can be performed. An important strength of this tool is that it can store measurements performed at different times for long periods, so as to detect sporadic conditions, spurious errors and line condition trends. This tool has been used successfully to monitor a bank of Alcatel SpeedTouch ADSL modems. The tool's modular design and parametric operation makes it easy to adapt it to new ADSL modem and DSLAM models.
Instruments for monitoring intensive care unit sedation
Genís Carrasco
Critical Care , 2000, DOI: 10.1186/cc697
Abstract: Anxiety and agitation are experienced by more than 70% of ICU patients. Their prevalence is even greater in critically ill patients undergoing mechanical ventilation. Consequently, the routine assessment of sedation should be a part of total care for critically ill patients, in a manner similar to that in which cardiorespiratory parameters are monitored. The difficulty in monitoring sedation, however, is that there is no gold standard tool for this purpose [1].Current techniques have been proposed, but they are often not supported by conclusive clinical evidence. A critical review of the available studies reveals three methodological problems. The first is the fact that these instruments have commonly been tested in postoperative patients, who do not suffer the multiple organ disorders experienced by critically ill patients [2]. Second, much of the available medical literature is based on the opinions of experts, rather than on results of controlled clinical trials. Finally, the third problem is the weak design of most of the published studies, which are often poorly controlled and nonrandomized. So far there have only been two reported trials that have employed a double-blind protocol [3]. It is therefore not surprising that routine sedation is often an empirical clinical exercise, without adequate assessment according to scientific evidence.The clinical utility of each available tool must be evaluated rigorously before deciding on whether they have applications in routine practice, because assessment of sedation is a primary objective in intensive care management.From both practical and evidence-based points of view, the present review assesses the available instruments for monitoring and controlling sedation in ICU patients who are undergoing mechanical ventilation. It is structured in two parts. The first part introduces some methodological concepts to facilitate a critical review of each instrument. The second part provides practical recommendations, on the bas
El glifosato: es parte de un modelo eugenésico?
Andrés Eduardo Carrasco
Salud Colectiva , 2011,
Abstract:
Page 1 /326950
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.