Knee Injury - Fall

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Hand Injury in a Motorcycle Rider

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Etnomatemáticas en artesanías de trenzado: un modelo metodológico para investigación

El área temática del Proyecto de Investigación, parte del cual exponemos en este artículo, es Etnomatemáticas. El propósito de investigación es la caracterización y valoración del conocimiento socio-cultural, implícito en la práctica diaria. En el contexto geográfico de Argentina, investigamos la matemática implícita en artesanías de trenzados, elaborando para esto un método propio de análisis etnomatemático. El instrumento metodológico MOMET que se crea para este estudio interpretativo formal de artesanías de trenzado tiene en cuenta dos aspectos: el producto final de la labor artesanal analizado en su complejidad global y el proceso que se lleva a cabo para realizarlo. La herramienta metodológica elaborada está constituida por dos componentes: un Método de análisis etnográfico (MET) y un Modelo de análisis matemático (MOM). El conjunto de los dos nos proporciona el instrumento metodológico MOMET, que permite la Modelización Etnomatemática de las artesanías de trenzado

I Stopped Boxing, and Now My Wrist Hurts

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I Stopped Boxing, and Now My Wrist Hurts

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Impact of PET/CT on initial staging, restaging and treatment management of anal cancer: a clinical case with literature review

Distant extrapelvic metastases appear in approximately in 10% of the patients with squamous cell anal cancer (SCAC) and survival depends on the treatment strategy. Exact staging leads to optimal planning of multimodality therapy and the adequate evaluation of treatment response can improve the prognosis of the disease. Diagnosis and staging of SCAC are commonly performed using contrast-enhanced computerized tomography(CT) and interpretation of the findings for tumor biological behavior. F18-fluoro-2 deoxy-D glucose positron emission tomography((18)F-FDG PET) reveals aspects of tumor function and allows metabolic measurements. Combined PET/CT scans permit exact localization with anatomical criteria of the hypermetabolic (18)F-FDG avid malignant lesions. We present a patient with SCAC in whom, according to PET/CT findings, the initial stage was changed from II (T2N0M0) to III A (T2N2M0). Radiation therapy (RT) and chemotherapy achieved a good therapeutic response but early follow up revealed new paraaortic lymph node (LN) metastases, as well as an uncommon left supraclavicular LN metastasis from the same primary carcinoma. The disease was restaged as stage IV (T2N2M1) and radiation therapy was substituted by chemotherapy