Search results for "Sound"
showing 10 items of 1845 documents
Angļu valodas mācīšanas stratēģijas un paņēmieni
2015
Šajā pētījumā tiek aplūkots angļu valodas apgūšanas un pasniegšanas aktivitātāšu un stratēģiju pielietojuma nozīmīgums bērniem, kuri apgūst angļu valodu kā svešvalodu. Pētījuma mērķis ir analizēt angļu valodas skaņu uztveri, pēc Tabor (1997) stratēģiju un aktivitāšu pielietošanas struktūras, bērniem, vecumā no trīs līdz sešiem gadiem, angļu valodas nodarbības laikā. Pētījuma teorētiskā daļa tiek balstīta uz Ames un Haber (1976), kā arī, Hutchcroft, (1981), Crystal, D. (2005), Hoff un Shatz (2007), Zsiga (2013), Kalnbērziņa (2012), Rowland (2014) un Giegerich (1992), Tabor (1997) un citiem autoriem. Praktiskās daļas mijiedarbības analīze ir balstīta uz Rowland (2014) un Crystal (2005) izstrā…
Física por un tubo. Mide la velocidad del sonido en el aire y diviértete con los tubos sonoros
2011
En este trabajo damos las claves para disenar un conjunto de tubos sonoros de PVC que permiten realizar una ejecucion musical en grupo con la participacion de un gran numero de personas sin cultura musical previa. Proponemos ademas la utilizacion de los tubos para el estudio cuantitativo de los fenomenos fisicos involucrados en la generacion del sonido con instrumentos de viento. Se describe la utilizacion de los tubos sonoros, en combinacion con un ordenador y un programa de analisis de sonido, para el analisis de ondas estacionarias y la determinacion de la velocidad de propagacion del sonido en el aire mediante distintos procedimientos.Palabras clave: Acustica; Ondas estacionarias; Veloc…
Focus on pediatric and adolescent varicocele: a single institution experience
2012
The aim of this study was to report our long-term diagnostic and surgical outcome during the last 18 years, in paediatric and adolescent management of varicocoele. The present retrospective study enrols 374 patients observed at our institution between 1994 and 2011. Patients were divided into three groups: Group A includes 142 youngsters and adolescents treated with open surgery for left varicocoele, in which a pre-operative CDUS was not performed; Group B includes 65 patients treated with open surgery in which a pre-operative CDUS evaluation was carried out, to assess varicocoele haemodynamic pattern and testicular volume. Group C includes 167 patients treated by laparoscopy and with pre-o…
Ultrasound assisted method to increase soluble chemical oxygen demand (SCOD) of sewage sludge for digestion
2004
The aim of this study was to clarify the possibilities to increase the amount of soluble chemical oxygen demand (SCOD) and methane production of sludge using ultrasound technologies with and without oxidising agents. The study was done using multivariate data analyses. The most important factors affected were discovered. Ultrasonically assisted disintegration increased clearly the amount of SCOD of sludge. Also more methane was produced from treated sludge in anaerobic batch assays compared to the sludge with no ultrasonic treatment. Multivariate data analysis showed that ultrasonic power, dry solid content of sludge (DS), sludge temperature and ultrasonic treatment time have the most signi…
HPTLC fingerprinting—rapid method for the differentiation of honeys of different botanical origin based on the composition of the lipophilic fractions
2018
Bee honey possess various nutritional and medicinal functions, which are the result of its diverse chemical composition. The numerous bioactive compounds in honey come from flower nectar
Stress Echocardiography and Strain in Aortic Regurgitation (SESAR protocol): Left ventricular contractile reserve and myocardial work in asymptomatic…
2020
Objectives: To analyze left ventricular (LV) myocardial deformation and contractile reserve (CR) in asymptomatic patients with severe aortic regurgitation (AR) at rest and during exercise, and their correlation with functional capacity. Background: The natural history of chronic AR is characterized by a prolonged silent phase before onset of symptoms and overt LV dysfunction. Assessment of LV systolic function and contractile reserve has an important role in the decision-making of AR asymptomatic patients. Methods: Standard echo, lung ultrasound, and LV 2D speckle tracking strain were performed at rest and during exercise in asymptomatic patients with severe AR and in age- and sex-comparabl…
Accuracy of ultrasonography in the diagnosis of acute appendicitis in adult patients: review of the literature
2013
Background Ultrasound is a widely used technique in the diagnosis of acute appendicitis; nevertheless, its utilization still remains controversial. Methods The accuracy of the Ultrasound technique in the diagnosis of acute appendicitis in the adult patient, as shown in the literature, was searched for. Results The gold standard for the diagnosis of appendicitis still remains pathologic confirmation after appendectomy. In the published literature, graded-compression Ultrasound has shown an extremely variable diagnostic accuracy in the diagnosis of acute appendicitis (sensitivity range from 44% to 100%; specificity range from 47% to 99% ). This is due to many reasons, including lack of operat…
Autenttisuus ja sen representaatiot Rumban, Rytmin ja Soundin levyarvosteluissa
2004
Componiendo con Soundpainting en el aula de música. Un estudio de casos colectivo sobre creación sonora colaborativa
2021
Soundpainting (SP) es el lenguaje de signos creado por Walter Thompson para la creación sonora en tiempo real. Se basa en la comunicación y la interacción, mediante la producción de gestos, entre un compositor (soundpainter) y un grupo de intérpretes (performers). Este diálogo genera un material sonoro y visual para poder crear de manera colaborativa composiciones de arte multidisciplinar. Esta investigación ha analizado el desempeño creativo de diferentes grupos de alumnos de educación primaria y secundaria al usar el lenguaje SP como recurso para la creación sonora en tiempo real, describiendo sus experiencias de colaboración creativa. Desde un enfoque cualitativo, se ha optado por elegir…