Instrumentos de cuerda

El objetivo del siguiente trabajo consiste en analizar el nvique como expresión material de la cultura entre los grupos qom a partir de un taller de construcción del instrumento musical. Al atender una problemática planteada por distintos referentes músicos qom en torno a la vigencia de su "legado cultural y musical" y analizar categorizaciones que refieren a la "pérdida de la cultura en las nuevas generaciones" es que se inicia un proyecto colaborativo y de intervención musical en una escuela bilingüe de la provincia del Chaco. El fin último del taller intentó poner en valor aspectos culturales de los grupos qom.  En un principio se presentará el nvique haciendo referencia a los usos en el pasado, las memorias y toques antiguos. Luego, se profundizará en la metodología de taller y el proceso de armado de manera conjunta y participativa con miembros de las comunidades, atendiendo a la problemática planteada por los agentes sociales. Y por último, se analizará el proceso de reapropiación del nvique como instrumento musical perteneciente al "patrimonio cultural qom" por parte de niños y niñas pero también maestro/as de la escuela.

En un mundo donde la ciencia y la tecnología denotan un acelerado avance, la enseñanza de la música se convierte en un desafío para los docentes instrumentistas que, en su ejercicio profesional, buscan lograr la armonía entre lo cognitivo, lo afectivo, lo técnico, lo histórico, la teoría, lo tecnológico y la didáctica del instrumento musical, a lo que se une la observación de las particularidades de los diversos instrumentos, en este caso, del violín y la viola.

"Quizás distinguir acordes posibles e irrealizables en el violín, la viola o el cello, sea el problema más difícil para compositores y directores que no sean también, instrumentistas de cuerda. El presente trabajo tiene como objetivos principales: analizar aquellos factores que determinan la factibilidad de un acorde o bloque de sonidos en un instrumento de cuerda y acercar a los lectores dos herramientas teóricas básicas para su análisis. Evaluaremos distintos ejemplos a través de la esquematización de la tastiera y escribiremos en detalle un método propuesto por Ertugrul Sevsay.

Possible and unworkable chords distinction in violin, viola or cello, perhaps is the most difficult problem for directors and composers who are not also string players. This work has as main objectives: to analyze the factors that determine the feasibility of a chord on a stringed instrument and bring readers two basic theoretical tools for analysis. Several examples will be evaluated through fingerboard schematization. A new method proposed by Ertugrul Sevsay, will be described in detail."

Resumen: Este artículo contiene referencias a fenómenos de brujería y magia en la provincia de Guadalajara. Se parte de una breve introducción que intenta situar al lector en unas coordenadas que faciliten el acercamiento a estos temas y la comprensión de ciertos usos, prácticas y creencias, frecuentemente ajenos al mundo racional. Para la documentación de los mismos se cita documentación bibliográfica y noticias obtenidas de la tradición oral. Summary: This article contains references to witchcraft and magic phenomena in the province of Guadalajara. It starts with a brief introduction to try to bring the reader into coordinates that facilitate the approach to these issues and understanding of certain customs, practices and beliefs, often alien to the rational world. For documentation of these bibliographic documents and news derived from the oral tradition is quoted.

Durante los reinados de Carlos III y sobre todo de su hijo Carlos IV se produjo un auge de la actividad musical en la Corte española coincidiendo con la creación de la Real Cámara, y así ha quedado reflejado en la contabilidad del Palacio Real, a través de la cual se pueden reconstruir diversos aspectos de la vida musical española, así como conocer la composición de la colección de instrumentos y su proceso de formación a lo largo de la vida de Carlos IV. A pesar de la escasa importancia que se le ha dado a este hecho a lo largo de los siglos, la figura del luthier es indispensable para la conservación de los mismos, ya que es necesario que los instrumentos se revisen periódicamente con el fin de que prevalezca su estado y sonoridad. El haber hallado un gran número de personas al servicio de la Real Cámara como reparadores de los mismos denota que estos instrumentos tuvieron una vida musical activa, hecho que nos lleva a preguntarnos cuáles fueron las reparaciones necesarias para que cada uno de ellos mantuviera las características sonoras más favorables y si estos arreglos fueron desarrollados de manera adecuada.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. . Since then about 100 other cases have been reported ], very few of which were shown to be located in parts of the brain other than in the ventricular system . Only four cases have been described in the cervical cord . In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

Director del Simposio Internacional “De la guitarra a la bandola: cordófonos pulsados en el mundo hispano-americano desde 1492 hasta hoy”, Roquetas de Mar (Almería), Escuela Municipal de Música, 13-14 de julio de 2013. En el marco del III Festival de Música Antigua y Danza Antiguas “Mare Musicum”. El objetivo de este Simposio es presentar algunas de las últimas investigaciones sobre los cordófonos en el mundo hispano-americano en todas sus vertientes, prestando especial atención a los procesos de intercambio musical España-América y a las constantes interacciones entre las tradiciones cultas y populares (tanto históricas como presentes).

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. . Since then about 100 other cases have been reported ], very few of which were shown to be located in parts of the brain other than in the ventricular system . Only four cases have been described in the cervical cord . In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. . Since then about 100 other cases have been reported ], very few of which were shown to be located in parts of the brain other than in the ventricular system . Only four cases have been described in the cervical cord . In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. [8]. Since then about 100 other cases have been reported [2, 5, 7, 9, 11-13, 20], very few of which were shown to be located in parts of the brain other than in the ventricular system [7, 12]. Only four cases have been described in the cervical cord [14, 15]. In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. [8]. Since then about 100 other cases have been reported [2, 5, 7, 9, 11-13, 20], very few of which were shown to be located in parts of the brain other than in the ventricular system [7, 12]. Only four cases have been described in the cervical cord [14, 15]. In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. . Since then about 100 other cases have been reported ], very few of which were shown to be located in parts of the brain other than in the ventricular system . Only four cases have been described in the cervical cord . In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. . Since then about 100 other cases have been reported ], very few of which were shown to be located in parts of the brain other than in the ventricular system . Only four cases have been described in the cervical cord . In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. [8]. Since then about 100 other cases have been reported [2, 5, 7, 9, 11-13, 20], very few of which were shown to be located in parts of the brain other than in the ventricular system [7, 12]. Only four cases have been described in the cervical cord [14, 15]. In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. [8]. Since then about 100 other cases have been reported [2, 5, 7, 9, 11-13, 20], very few of which were shown to be located in parts of the brain other than in the ventricular system [7, 12]. Only four cases have been described in the cervical cord [14, 15]. In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. [8]. Since then about 100 other cases have been reported [2, 5, 7, 9, 11-13, 20], very few of which were shown to be located in parts of the brain other than in the ventricular system [7, 12]. Only four cases have been described in the cervical cord [14, 15]. In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.

We report a case of spinal cord neurocytoma in a 67-year-old man who had experienced a progressive numbness of the left foot during the previous 4 years. Magnetic resonance imaging showed a well-defined intramedullary tumor located at the T10-Tll level. The pathological examination revealed histological characteristics described in neurocytomas. The tumor cells showed a uniform small nucleus and clear or slightly eosinophilic cytoplasm with frequent perinuclear halos, resembling the picture of oligodendroglioma. Some tumor cells exhibited mature ganglion cell appearance. Electron microscopy showed cells with microtubules and dense-core vesicles in their cytoplasm and cytoplasmic process. Immunohistochemically, the majority of tumor cells expressed synaptophysin and neuronspecific enolase. We conclude that this tumor is an exceptional case of neurocytoma located in the spinal cord, and consider that the term neurocytoma can be applied to tumors with neuronal differentiation intermediate between neuroblastoma and ganglioneuroma, even if arising in CNS outside of the intracranial ventricular system. Key words Neurocytoma 9 Spinal cord differentiation. It was first described by Hassoun et al. [8]. Since then about 100 other cases have been reported [2, 5, 7, 9, 11-13, 20], very few of which were shown to be located in parts of the brain other than in the ventricular system [7, 12]. Only four cases have been described in the cervical cord [14, 15]. In this report we present a spinal cord tumor in a 67-year-old man, with the histological, immunohistochemical and ultrastructural characteristics of a central neurocytoma.