24 research outputs found

    Iron oxides and organic matter on soil phosphorus availability

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    Taphonomic analysis of an assemblage of Lama guanicoe (Artiodactyla, Camelidae) from late Holocene (Pampean Region, Argentina)

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    The present work analyzes the taphonomic characteristics of an assemblage of Lama guanicoe recovered from the fluvial deposits of Chacra La Blanqueada Formation, at García del Río locality. This locality is situated in the middle valley of the Napostá Grande Creek (south of the Pampean Region, Buenos Aires Province, Argentina). A radiocarbon date of 2342 ± 47 years BP allows the assignment of this assemblage to the late Holocene. The MNI (Minimum Number of Individuals) and the population structure suggest the presence of a family group or part of a mixed group. The available evidence indicates that, throughout their taphonomic history, the remains were affected by processes related to a floodplain sub-environment. Also, the marks of anthropic activity suggest that the death of the animals was circumstantially used as a low-cost and low-risk resource, highlighting the relevant role of this species in the regional hunter-gatherer communities.Fil: Tomassini, Rodrigo Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto Geológico del Sur; ArgentinaFil: Frontini, Romina. Universidad Nacional del Sur. Departamento de Humanidades; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bayon, Cristina. Universidad Nacional del Sur. Departamento de Humanidades; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

    Mammary-type myofibroblastoma of the larynx: A rare tumor of the head and neck

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    Background: Mammary type-myofibroblastoma is a rare, benign tumor that is morphologically identical to myofibroblastoma of the breast. We describe, for the first time, a case of mammary-type myofibroblastoma arising in the larynx. Methods and results: A 70 year-old man presented with dysphagia and dysphonia and was found to have a right vocal cord cystic-appearing lesion, which was surgically excised. Histologic examination showed short fascicles of spindle cells with eosinophilic cytoplasm, oval nuclei with fine chromatin and inconspicuous nucleoli, thick bundles of collagen, and peripherally located focal scattered adipocytes. Immunohistochemical staining was positive for CD34 and negative for MDM2, CDK4, ER, and PR. Conclusion: We report the first rare case of a patient with a mammary-type myofibroblastoma of the larynx. While rare, it is important to consider this in the differential diagnosis when a spindle-cell tumor arises in the head and neck and to review the histopathological findings. Keywords: Myofibroblastoma, Vocal cord tumor, Microdirect laryngoscopy, Histology, Laryn

    Presentation and Outcomes of Otolaryngologic Surgeries in Patients With Mental Illness History

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    BACKGROUND: Describe the epidemiology and characteristics of patients with a history of mental illness undergoing otolaryngologic procedures. METHODS: A retrospective cross-sectional analysis utilizing the Nationwide Readmissions Database, 2010 to 2015. The study sample included adult (≥18 years) patients undergoing otolaryngologic procedures. RESULTS: A total of 146 182 patients were included, 18.3% with mental illness history. The prevalence of patients who required otolaryngologic surgeries with history of mental illness increased significantly from 14.9% in 2010 to 25.0% in 2015 (P \u3c .001). Mental illness diagnoses included: depression (6.9%), anxiety (5.8%), alcohol dependence (4.2%), substance dependence (2.9%), bipolar disorder (1.4%), memory disorders (1.2%), delusional disorders (0.6%), self-harm (0.1%). Patients with a history of mental illness were more likely to be \u3c65 years, female, and have multiple comorbidities (P \u3c .05 each). Patients with history of mental illness had a higher risk of complications [OR:1.59, 95% CI:1.50,1.69, P \u3c .001]. CONCLUSIONS: Patients with a history of mental illness are increasingly encountered in otolaryngology service. This study provides an epidemiological perspective that warrants increasing clinical investigation of this subpopulation

    Concept design of a new portable medical device for lymphedema monitoring: A EIT Health ClinMed Summer School project

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    Lymphedema is a chronic and progressive condition derived from impaired lymphatic system function. Lymphedema is incurable, progressive, disfiguring, disabling and has adverse psychosocial effects. Upper extremity lymphedema is mainly the consequence of breast cancer surgery. Several methods to diagnose lymphedema exist; however, these diagnoses are performed once the disease is already close to an advanced, irreversible stage. There is a need to monitor patients at risk with an efficient device. To solve this unmet need, we propose a portable home-monitoring device for early diagnosis of lymphedema. This paper explores all the aspects of the development of a new medical device, such as the assessment of the clinical need and the state of the art, the specifications for the solution, the definition of the broad outlines of the development plan and some considerations about the usability, the risk analysis, the market and the competitors.The authors would like to thank all the organizers of the EIT Health ClinMed 2018 summer school. Without them this project would have never born. Special thanks for all the mentors who helped us to improve and better define this work. The authors would also like to thank the Rehabilitation service at the Hospital Santa Maria (Lisbon, Portugal) and the Pediatric Cardiology department at the Hospital Santa Marta (Lisbon, Portugal) for hosting and enables us to have a broader view of the different healthcare providers which allows us to implement all this knowledge to design a better solution. This research was supported by a Marie Curie ITN fellowship within the 7th European Community Framework Programme (Grant Number: 676338).Not peer reviewe

    Concept design of a new portable medical device for lymphedema monitoring: A EIT Health ClinMed Summer School project

    No full text
    Lymphedema is a chronic and progressive condition derived from impaired lymphatic system function. Lymphedema is incurable, progressive, disfiguring, disabling and has adverse psychosocial effects. Upper extremity lymphedema is mainly the consequence of breast cancer surgery. Several methods to diagnose lymphedema exist; however, these diagnoses are performed once the disease is already close to an advanced, irreversible stage. There is a need to monitor patients at risk with an efficient device. To solve this unmet need, we propose a portable home-monitoring device for early diagnosis of lymphedema. This paper explores all the aspects of the development of a new medical device, such as the assessment of the clinical need and the state of the art, the specifications for the solution, the definition of the broad outlines of the development plan and some considerations about the usability, the risk analysis, the market and the competitors.The authors would like to thank all the organizers of the EIT Health ClinMed 2018 summer school. Without them this project would have never born. Special thanks for all the mentors who helped us to improve and better define this work. The authors would also like to thank the Rehabilitation service at the Hospital Santa Maria (Lisbon, Portugal) and the Pediatric Cardiology department at the Hospital Santa Marta (Lisbon, Portugal) for hosting and enables us to have a broader view of the different healthcare providers which allows us to implement all this knowledge to design a better solution. This research was supported by a Marie Curie ITN fellowship within the 7th European Community Framework Programme (Grant Number: 676338).Not peer reviewe

    Concept design of a new portable medical device for lymphedema monitoring: A EIT Health ClinMed Summer School project

    Get PDF
    Lymphedema is a chronic and progressive condition derived from impaired lymphatic system function. Lymphedema is incurable, progressive, disfiguring, disabling and has adverse psychosocial effects. Upper extremity lymphedema is mainly the consequence of breast cancer surgery. Several methods to diagnose lymphedema exist; however, these diagnoses are performed once the disease is already close to an advanced, irreversible stage. There is a need to monitor patients at risk with an efficient device. To solve this unmet need, we propose a portable home-monitoring device for early diagnosis of lymphedema. This paper explores all the aspects of the development of a new medical device, such as the assessment of the clinical need and the state of the art, the specifications for the solution, the definition of the broad outlines of the development plan and some considerations about the usability, the risk analysis, the market and the competitors.The authors would like to thank all the organizers of the EIT Health ClinMed 2018 summer school. Without them this project would have never born. Special thanks for all the mentors who helped us to improve and better define this work. The authors would also like to thank the Rehabilitation service at the Hospital Santa Maria (Lisbon, Portugal) and the Pediatric Cardiology department at the Hospital Santa Marta (Lisbon, Portugal) for hosting and enables us to have a broader view of the different healthcare providers which allows us to implement all this knowledge to design a better solution. This research was supported by a Marie Curie ITN fellowship within the 7th European Community Framework Programme (Grant Number: 676338).Not peer reviewe

    GEM Colombia 2014

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    El Global Entrepreneurship Monitor (GEM) es el proyecto de investigación de mayor cobertura y alcance en el mundo, cuyos objetivos son analizar la propensión de la población adulta de un país hacia la actividad empresarial e identificar las condiciones que facilitan o impiden estas iniciativas empresariales. Este proyecto fue concebido en 1997 por Babson College y London Business School e inició en 1999 con 10 países (Dinamarca, Finlandia, Israel, Canadá, Francia, Alemania, Italia, Japón, Reino Unido y Estados Unidos). En 2004 estas 2 instituciones transfirieron el capital intelectual de GEM a la Global Entrepreneurship Research Association (GERA), organización sin ánimo de lucro dirigida por los representantes de los equipos nacionales, de las dos instituciones fundadoras y de las instituciones patrocinadoras

    Concept design of a new portable medical device for lymphedema monitoring: A EIT Health ClinMed Summer School Project

    No full text
    Lymphedema is a chronic and progressive condition derived from impaired lymphatic system function. Lymphedema is incurable, progressive, disfiguring, disabling and has adverse psychosocial effects. Upper extremity lymphedema is mainly the consequence of breast cancer surgery. Several methods to diagnose lymphedema exist; however, these diagnoses are performed once the disease is already close to an advanced, irreversible stage. There is a need to monitor patients at risk with an efficient device. To solve this unmet need, we propose a portable home-monitoring device for early diagnosis of lymphedema. This paper explores all the aspects of the development of a new medical device, such as the assessment of the clinical need and the state of the art, the specifications for the solution, the definition of the broad outlines of the development plan and some considerations about the usability, the risk analysis, the market and the competitors.</p
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