61 research outputs found

    Approximation Properties of Schurer-Stancu Type Polynomials

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    MSC 2010: 41A25, 41A3

    The Dilemma of Old, Urban Neighborhoods

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    In his recounting of the suburban migration from America\u27s cities, journalist and broadcaster Ray Suarez laments the loss of the old neighborhood . He extols its virtues while explaining its decline. Suarez\u27s nostalgic examples recall the virtues of the extended family kinship, neighborliness, and other features of the urban village. These are often associated with those urban neighborhoods populated by recent immigratns. These urban villages were thought to have peaked in the decades between the American Civil War and the onset of the First World War, when many U.S. cities industrialized and grew very rapidly. However, a continuing movement of migrants from the southern United States, Puerto RIco, and during the past few decades from around the globe has meant the survival of the urban village in many cities. Like their earlier predecessors, these neighborhoods are often characterized by high rates of poverty and substandard social conditions. In contrast to the old urban neighborhoods populated by the new immigratns, many neighborhoods in the economically and socially distressed areas of U.S. cities have been largely depopulated and have abnormally high rates of abandonment and social problems. These neighborhoods are often highly segregated by race and ethnicity and have high concentrations of poverty. Old urban neighborhoods have been a focus of social policy for the past fifty years. The passage of the Housing Act of 1949 heralded a federal commitment, at least on a limited basis, to provide the public housing for the poor and decent neighborhoods for those living in the slums through urban redevelopment, later renamed urban renewal. In the ensuing five decades, various federal policies and programs have been inaugerated, some later to be either reformed or dismantled, to address the problems presented by these older, urban neighborhoods and their residents. The dilemna confronting policymakers has been that neglect promises even worse problems, the worst of which have been urban riots triggered by festering social ills. On the other hand, no past active approach has yet solved these problems. After briefly reviewing major federal initiatives, I will focus on the emergence, evolution, and experience of community deveopment coroporations (CDCs) based in these neighborhoods

    The Correlation of Clinicopathological Findings and Neutrophil-to-Lymphocyte and Platelet-to-Lymphocyte Ratios in Papillary Thyroid Carcinoma

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    WOS: 000461741100003PubMed ID: 30942057Objectives: Inflammatory markers such as neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) have been recently introduced as potential biomarkers for tumor pathogenesis, development and prognosis in solid tumors. Our aim was to assess the correlation of clinicopathological features and NLR and PLR in patients with papillary thyroid carcinoma (PTC). Methods: A total of 201 papillary thyroid carcinoma patients were divided into groups with a cut-off preoperative median NLR and PLR value of 1,92 and 123.9, respectively. The correlation of NLR and PLR and clinicopathological features including age, tumor size, extra-thyroidal extension, thyroid capsule invasion, surgical margin positivity, multifocality, bilaterality of the patients were analyzed. Results: The mean NLR and PLR were 2.11 +/- 0.94, 129.69 +/- 42.81, respectively. Larger tumor size and higher positivity of extra-thyroidal spread were correlated with higher NLR values. No significant relationship was found between NLR and age, presence of thyroid capsule invasion, surgical margin positivity, multifocality, bilaterality, and lymph node metastasis. Also no significant association was observed between the clinicopathological features and PLR. Conclusion: High NLR was found to correlate with tumor size and extra-thyroidal extension. NLR may be used as a marker to determine the clinical behavior of disease in patients with papillary thyroid carcinoma (PTC)

    A rare case of granulomatous prostatitis caused by Mycobacterium tuberculosis

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    WOS: 000243573700012PubMed ID: 17024674We report a rare case of infective granulomatous prostatitis caused by Mycobacterium tuberculosis that may be mistaken for prostatic carcinoma, both on clinical examination and transrectal sonography (TRUS). A large hypoechoic mass was detected in the prostate of a 46-year-old man during TRUS and histopathologic examination after TRUS-guided biopsies reported the diagnosis of tuberculous prostatitis. We herein describe the clinical and TRUS findings of this case. (c) 2006 Wiley Periodicals, Inc

    Laparoscopic adrenalectomy in children: A 25-case series and review of the literature

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    WOS: 000442653100029PubMed ID: 29254846Background: Laparoscopic adrenalectomy (LA) is the gold standard and is widely performed in adults, but its use in children is relatively new. We aim to present our experience in twenty-five children with diverse adrenal pathologies and to discuss an extensive review of pediatric LA in English literature. Methods: Medical records of children with adrenal tumors admitted to a tertiary center and treated with LA were reviewed. Characteristics and outcome of patients were compared with results of a systematic Pubmed/Medline literature review. Results: Transperitoneal LAs were performed for 12 malignant and 14 benign adrenal masses (size range: 2-8 cm) in 25 children (median age: 63 months). Fourteen lesions were on the right side, and there was one bilateral case. There were no conversion and no complication within 36 months of follow-up. A literature review revealed 437 pediatric LAs with left side predomination (51.4%). The indication was a malignant lesion in 60.2% of the cases (sizes range: 1-10 cm). The transperitoneal route was preferred in 94.2% of the procedures. Conversion and complication rates were 7.5% and 3.1%, respectively. Conclusion: LA should be preferred in selected children with adrenal pathologies. The transperitoneal route seems to be the standard approach for pediatric surgeons. Preoperative planning and surgical expertise are the keys to success. (C) 2017 Elsevier Inc. All rights reserved

    Investigation of the Presence of Arachnoid Granulation in Fetuses and Early Infancy

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    The aim of our study is to investigate the importance of arachnoid granulation in cerebrospinal fluid physiology in fetuses and early infancy. Using the random sampling method, postmortem fetuses more than 26 weeks of gestation age and the children under the age of 1 year were chosen from the autopsy materials. Two male and two female intrauterine dead fetus; three male and three female, totally six children under the age of 1 year and one 3-year-old male were included in this study. In cases of intrauterine fetuses more than 26 weeks of gestation and children under the age of 1 year, complete invagination of arachnoid villi into the superior sagittal sinus was examined histologically. In the intrauterine period and in the first 6 months of life, arachnoid villi structures were not found in histologic preparations although in preparations taken after the 6 months of life samples showed similarities to arachnoid granulations. These structures were considered as arachnoid villi drafts after immunohistochemical analysis. In the control case who were 3 years old, maturation of arachnoid villi was complete and the arachnoid villi were invaginated into the superior sagittal sinus as fingerlike extensions. In our study, we think that the failure after E3V intervention in the treatment of hydrocephalus in cases under the age of 1 years may be related to the completion of arachnoid granulation development after the 18th month of life and the immature resorption capacity in this period

    Development of applications with Myo

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    El accidente cerebrovascular es la principal causa de discapacidad a largo plazo en los adultos mayores en el Perú y el mundo. Una de las principales consecuencias que estas personas sufren es el debilitamiento y pérdida de la funcionalidad de manera parcial o total de las extremidades superiores; lo que puede hacer difícil la vida independiente. Sin embargo, la mayoría de pacientes podrían recuperarse ejecutando, de manera independiente, los ejercicios de repeticiones diarias de movimientos en las extremidades afectadas. Lamentablemente, los pacientes no realizan los ejercicios recomendados por el terapeuta debido a que los consideran monótonos y aburridos. Por ello, en este trabajo se implementó un sistema de telerehabilitación basado en juegos que pretenden motivar a los pacientes para que realicen los movimientos o ejercicios necesarios para recuperarse; así como también lograr la adherencia a su régimen prescrito por el terapeuta, lo que aumenta las posibilidades de una recuperación significativa. En síntesis, el presente proyecto representa una gran oportunidad y desafío para comprobar que la propuesta logra más adherencia que la rehabilitación tradicional. A continuación, en el primer capítulo se expondrá el proyecto y sus objetivos a mayor detalle. Luego, el segundo capítulo, documentará los Student Outcomes cumplidos en este proyecto. En el tercer capítulo se analizará la situación actual de la herramienta Myo Armband la cual permitirá desarrollar aplicaciones orientadas a la rehabilitación, debido a la presencia de electromiógrafos en su composición. Después, en el cuarto capítulo se detallarán los conceptos necesarios para el propio entendimiento del proyecto y el problema identificado. A continuación, en el quinto capítulo se presentará el desarrollo y aporte final del proyecto. En el sexto capítulo se describirá como se llevó a cabo la gestión del proyecto. Finalmente, se listarán las conclusiones propuestas para el proyecto.Strokes are the main cause of long-term disability in elderly adults in Peru and in the world. One of the major consequences these people undergo is weakening and partial or full upper limbs functionality loss, which can hinder independent living. Nonetheless, most patients could recover by doing self-consciously daily repetition movement exercises in the weakened limbs. Pitifully, patients do not do the exercises by themselves as their therapist suggested due to the fact that they consider the exercises to be monotonous and dull. Therefore, in this work, a telerehabilitation system based on games was implemented that aims to motivate patients to perform exercises or necessary movements to convalesce themselves; as well as achieving adherence to their regime prescribed by the therapist, increasing the changes of an astonishing recovery. In summary, the present project represents a great opportunity and challenge to verify that the proposal achieves more adherence than traditional rehabilitation. Chapter one explores the project and its objectives in greater detail. Chapter two documents the Student Outcomes fulfilled in this project. Chapter three analyzes the current situation of of the Myo Armband tool which will allow the development of applications oriented to rehabilitation, due to the presence of electromyographs in its composition. Chapter four details the concepts needed to identify and understand the problem space. Chapter five presents the project's development and our contributions. Chapter six describes how project management was carried out. Finally, conclusions generated from this project are listed.Tesi

    Composite pheochromocytoma with spindle cell sarcoma - a rare tumor of the adrenal gland: case report

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    Composite pheochromocytomas with a non-pheochromocytoma component stemming from an embryological origin other than the neural crest comprise a unique entity. We present a patient diagnosed with a composite pheochromocytoma with spindle cell sarcoma, which is, to our knowledge, the first case reported in the current literature. A 45-year-old female patient with elevated blood pressure had undergone adrenalectomy for clinically and radiologically diagnosed pheochromocytoma. Macroscopic examination of the specimen showed an encapsulated mass containing two nodules. One tumor was composed of large polygonal neoplastic cells with round vesicular nuclei and granular cytoplasm forming the characteristic Zellballen pattern consistent with pheochromocytoma, while the other was composed of spindle cells with hyperchromatic nuclei and prominent nucleoli, thus resembling a sarcoma. The patient was discharged on the fourth post-operative day without any complications. Even though for both tumors surgical resection is the main treatment modality, our case report aims to shed light on and discuss the etiology and management of a rarely presented composite pheochromocytoma and spindle cell sarcoma

    Benign fibroblastic polyp of the colon: A case report

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    WOS: 000283606000010PubMed ID: 20084575There are a fair number of polyps in the gastrointestinal tract, which cannot be classified under a certain category. We report herein a 50-year-old man with a 6-mm sigmoidal polyp; he had been operated previously for rectal carcinoma. The polyp was characterized by benign-appearing spindle cells in the lamina propria leading to a wide separation and disorganization of the colonic crypts, accompanied by focal erosion and restricted areas suspicious for inflammatory fibroid polyp. The histologic features were found consistent with the disease spectrum of "benign fibroblastic polyp of the colon" defined by Eslanzi-Varzaneh et al. The case is presented with a review of the literature and differential diagnostic considerations
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