319 research outputs found
BIANCA (Brain Intensity AbNormality Classification Algorithm): a new tool for automated segmentation of white matter hyperintensities
Get PDFReliable quantification of white matter hyperintensities of presumed vascular origin (WMHs) is increasingly needed, given the presence of these MRI findings in patients with several neurological and vascular disorders, as well as in elderly healthy subjects. We present BIANCA (Brain Intensity AbNormality Classification Algorithm), a fully automated, supervised method for WMH detection, based on the k-nearest neighbour (k-NN) algorithm. Relative to previous k-NN based segmentation methods, BIANCA offers different options for weighting the spatial information, local spatial intensity averaging, and different options for the choice of the number and location of the training points. BIANCA is multimodal and highly flexible so that the user can adapt the tool to their protocol and specific needs. We optimised and validated BIANCA on two datasets with different MRI protocols and patient populations (a “predominantly neurodegenerative” and a “predominantly vascular” cohort). BIANCA was first optimised on a subset of images for each dataset in terms of overlap and volumetric agreement with a manually segmented WMH mask. The correlation between the volumes extracted with BIANCA (using the optimised set of options), the volumes extracted from the manual masks and visual ratings showed that BIANCA is a valid alternative to manual segmentation. The optimised set of options was then applied to the whole cohorts and the resulting WMH volume estimates showed good correlations with visual ratings and with age. Finally, we performed a reproducibility test, to evaluate the robustness of BIANCA, and compared BIANCA performance against existing methods. Our findings suggest that BIANCA, which will be freely available as part of the FSL package, is a reliable method for automated WMH segmentation in large cross-sectional cohort studies. © 2016 The Author
Proposta de iluminação para o projeto de sinalização de uma instituição de ensino, sob a ótica do Desenho Universal
No full text
Amanda de Morais Alves Figueira, Universidade de Pernambuco ([email protected])
Bianca M. Vasconcelos, Universidade de Pernambuco ([email protected])
A presente pesquisa está vinculada no programa de extensão ‘Programa de acessibilidade integral: inclusão da PcD (Pessoa com Deficiência) à comunidade acadêmica e seu entorno’, aprovado no edital PIAEXT/UPE 2018. Acredita-se que a devida iluminação em elementos de sinalização possa proporcionar melhoria na percepção e orientação espacial, além de minimizar o risco de acidentes de PcD. O objetivo desta pesquisa é propor a iluminação do projeto de sinalização de uma instituição de ensino, como parte integrante do projeto de acessibilidade integral. De forma geral, visa contribuir na percepção e orientação espacial da pessoa com deficiência visual (baixa visão), de modo a incluir as PcD nas atividades cotidianas de uma instituição de ensino. A metodologia da pesquisa fez uso das técnicas de check-list e de Passeio Acompanhado (DISCHINGER, 2012). O check-list foi elaborado de acordo com a NBR 90/50. No passeio acompanhado, tem o propósito de apontar as dificuldades que serão encontradas durante o trajeto, consequentemente atribuindo a NR 17 para a segurança e o bem-estar para todos. Posteriormente, haverá medições dos níveis de iluminância dos ambientes da instituição, com o uso do equipamento de medição de iluminação em lux (lx) luxímetro digital. Por fim, mediante os dados coletados e analisados, será elaborado um relatório de diagnóstico e elaborada a proposta de iluminação para o projeto de sinalização. Espera-se a acessibilidade das pessoas com baixa visão na instituição de ensino estudada, desprovida de barreiras físicas, perceptivas e cognitivas, de modo a assegurar ao usuário, sua plena autonomia e melhoria na qualidade de vida
Forecast horizon of 5th – 6th – 7th long wave and short-period of contraction in economic cycles
Get PDFThe purpose of this essay is to determine the forecast horizon of the fifth, sixth and seventh long wave. As the period of each long wave can change according to the data, it has been used a deterministic approach, based on historical chronologies of USA and UK economies worked out by several scholars, to determine average timing, period and forecast error of future long waves. In addition, the analysis shows that long waves have average upwave period longer than average downwave one. This result is also confirmed by US Business Cycles that have average contractions shorter than expansions phase over time.Forecast Horizon, Long Waves, Kondratieff Waves, Business Cycles, Asymmetric Path
Metrics for driving political economy of energy and growth
Get PDFEnergy metrics is the development of a whole new theoretical framework for the conception and measurement of energy and economic performances, energy efficiency and productivity improvements with important political economy implications consistent with the best use of all natural and economic resources. The purpose of this research is to present some vital energy indicators based on magnitude and scale of energy weakness, GDP per barrel that is an indicator of energy productivity and barrels per capita that is an indicator of energy efficiency. Energy metrics can support policy maker to monitor energy system of countries in order to design effective strategy and political economy focused to increase the competitive advantage of countries in modern economies.Energy metrics, Energy productivity, Energy efficiency, Energy systems
Predicting strategic change of public research institutions under unstable negative growth
Get PDFThe purpose of this paper is to forecast and analyse, by a demographic perspective, the organizational behaviour of public research labs. The research focuses on the biggest Italian public research body. Demographic models of growth, based on different human resource policies, show the uncertain and retrogressive evolutionary change of Italian public research bodies that would halve their research personnel over the forecast horizon. These results provide vital information to the public management about the weaknesses and environmental threats in order to support decisions for improving the strategic change and survival of public research institutions over time.Organizational Studies, Forecasting, Public Research Institutions, Internal Demography
Possible technological determinants and primary energy resources of future long waves
Get PDFThe purpose of this paper is to conjecture the possible underlying technological determinants of future long waves, based on prominent studies of scholars and leading forecasting companies; in particular, this research assumes the converging of nano-bio-info-cogno technologies to be the foundation of 5th and 6th economic cycles, whereas the future technological revolution that may underpin the 7th long wave is assumed to be Faster-Than-Light technologies. The positive effects of these future technological revolutions on worldwide economic system are a high increase of productivity, employment rate, consumption and economic growth that lead to longer, happier, and healthier living as well as general well-being.Long Waves, Technological Revolution, Forecasting, Foresight
History, Changes and Continuities in the Handmade Textiles made by the Ñätho Women of San Felipe de los Alzati, Michoacán
No full textLos bordados otomíes de San Felipe de los Alzati, Michoacán, que forman parte de la vestimenta tradicional, están en proceso de desplazamiento tras el paso de las telas e hilazas comerciales y la ropa del mercado global. El presente artículo da un panorama sobre ya khoti o labores bordadas por mujeres de la comunidad que son hablantes de la lengua hñätho. La historia de los textiles es el hilo que entreteje la memoria y la vida plasmada en lenguaje de los bordados. También se da cuenta aquí de las trasformaciones en la producción de los textiles con relación a la cultura y la lengua hñätho.The Otomi embroidery of San Felipe de los Alzati, which is part of the traditional clothing, are in the gradual displacement after the arrival of the commercial fabrics and thread and the clothing of the global market. This text gives an overview of Ya khoti or embroidered cloths by the women who are speakers of Hñätho Language. The history of textiles is the thread that interweaves memory and life embodied in the embroidery language. We will present the transformations in textiles productions in relation to the culture and Hñätho language.Ávila de, Alejandro (2015). “In octacatl, in machiyotl: dechados de virtud y entereza”. Catálogo de exposición (marzo-agosto de 2015). México: Museo Textil de Oaxaca / Fundación Harp Helú.
Baltazar R. (2015). “La lucha por la tierra entre los otomíes de Michoacán”. En Estudios Agrarios, 21(60), pp. 85-115.
Embriz, A. y Zamora O. (2012). México. Lenguas indígenas en riesgo de desaparición. México: Inali.
Gómez, Arturo (2014a). “La producción textil indígena entre los nahuas de Hueyapan, Puebla”. En Alejandro González V. (coord.), Cambio y continuidad en las organizaciones indígenas textiles femeninas (pp. 15-36). México: Conaculta / INAH / Dirección General de Culturas Populares.
________(2014b). “El textil indígena, ni arte ni artesanía… es ciencia”. En Divulgación Uama. Recuperado de: https://ciseiweb.wordpress.com/2015/12/22/el-textil-indigena-ni-arte-ni-artesaniaes-ciencia/
Halbwachs, Maurice (1995). “Memoria colectiva y memoria histórica” (traducción de un fragmento del capítulo II de La mémoire collective, París, 1968). En Reis, 69, pp. 209-219. Recuperado de: http://www.reis.cis.es/REISWeb/PDF/REIS_069_12.PDF
Hekking, Ewald y Dik Bakker (2010). “Tipología de los préstamos léxicos en el otomí de Querétaro: una contribución para el estudio sistemático y comparativo de diversas lenguas representativas del mundo desde un enfoque interlingüístico”. En Ciencia@UAQ, 3(1), pp. 27-47.
Hernández, Luis y Moisés Victoria Torquemada (2010). Diccionario del hñähñu (otomí) del Valle del Mezquital, Estado de Hidalgo. México: Instituto Lingüístico de Verano.
Hobsbawn, Eric (2002) [1983]. La invención de la tradición. Barcelona: Crítica.
Ibarra, C. (2013). “La memoria colectiva como un medio para la historia oral. Experiencia de construcción de la memoria de un barrio obrero en Viña del Mar”. En XIV Jornadas Interescuelas (2 al 5 de octubre del 2013). Mendoza: Departamento de Historia-Facultad de Filosofía y Letras-Universidad Nacional de Cuyo (ponencia).
INEGI (2010). Principales resultados del Censo de Población y Vivienda. Recuperado de: http://www.inegi.org.mx
Inali (2008). “Catálogo de lenguas indígenas nacionales variantes lingüísticas de México con sus autodenominaciones y referencias geoestadísticas”. Diario Oficial de la Federación. México.
________ (2014). Njaua nt'ot'i ra hñähñu: norma de escritura de la lengua hñähñu (otomí) de los estados de Guanajuato, Hidalgo, Estado de México, Puebla, Querétaro, Tlaxcala, Michoacán y Veracruz. México: Inali.
Islas, Bianca Paola (2017). “Vitalidad lingüística del ñathó (lengua otomí) de San Felipe los Alzati, municipio de Zitácuaro, Michoacán”. En Primer Encuentro de Estudios de las Culturas Indígenas ENES-UNAM (3 al 5 de mayo del 2017) (ponencia).
________ (2018a). “Diagnóstico de las condiciones de vitalidad lingüística del hñätho (otomí) de Michoacán, México”. En Congreso Internacional Contacto, Documentación y Revitalización de Lenguas en Desplazamiento en Hispanoamérica: Desafíos en la Diversidad II (26 de febrero al 2 de marzo del 2018). San José: Universidad de Costa Rica (ponencia).
________ (2018b). “Actitudes lingüísticas sobre la lengua hñätho (otomí) de San Felipe de los Alzati, Zitácuaro, Michoacán”. En XII Coloquio de Lingüística en la ENAH (25 al 27 de abril del 2018) (ponencia).
_________ (2018c). “La investigación lingüística y sociolingüística del hñätho u otomí de San Felipe de los Alzati, Michoacán”. En Ciclo de conferencias “El quehacer lingüístico en el INAH, 1968-2018 (50 aniversario de la Dirección de Lingüística del INAH, 17 y 18 de agosto del 2018) (conferencia).
Lastra, Yolanda (2001). San Felipe los Alzati, Zitácuaro, Michoacán. En Yolanda Lastra (coord.), Unidad y diversidad de la lengua: relatos otomíes (pp. 245-276). México: UNAM.
________ (2006). Los otomíes. Su lengua y su historia. México: UNAM.
Mendoza, Jorge (2015). Sobre la memoria colectiva. Marcos sociales, artefactos e historia. México: Universidad Pedagógica Nacional.
Meyer, Jean (1983). “Documento. La fiebre aftosa y la Unión Nacional Sinarquista (1947)”. En Relaciones. Estudios de Historia y Sociedad, 16, pp. 93-112.
Oliveros, Rodolfo (2012). El carnaval otomí, las versiones de la memoria. En C. Paredes y J. Amos M. (coords.). Alzaban banderas de papel. Los pueblos originarios del oriente y la Tierra Caliente de Michoacán (pp. 390-407). México: CDI / Secretaría de Pueblos Indígenas de Michoacán.
Oliveros, Rodolfo e Islas, Bianca (2017). “Entrada de cruz: tierra, lengua y ritualidad hñätho”. La Jornada del Campo. Suplemento informativo de La Jornada, 123, p. 11.
Oliveros, Rodolfo, Bianca Islas, Juan Gallardo, David Figueroa y Daniel Gutiérrez (en revisión). “Diversidad cultural, desigualdad social y discriminación: paradojas y tensiones en pueblos indígenas de Michoacán”.
Pérez-Bustos, Tania (2016). “El tejido como conocimiento, el conocimiento como tejido: reflexiones feministas en torno a la agencia de las materialidades”. Revista Colombiana de Sociología, 39(2), pp. 163-182.
Rivera, Mariana (2017). “Tejer y resistir. Etnografías audiovisuales y narrativas textiles”. En Universitas. Revista de Ciencias Sociales y Humanas, núm. 27. Recuperado de: https://doi.org/10.17163/uni.n27.2017.06
Sánchez, Y., Pamela Pineda y Bianca Islas (2018). “Ya khoti Ñatho. Los bordados otomíes de San Felipe de los Alzati, Michoacán”. En II Jornada de las Culturas Otomí, Mazahua y Pirinda-matlatzinca de Michoacán (12 y 13 de octubre de 2018). ENES-UNAM / INAH Michoacán / Radio Indigenista XHTUMI (ponencia)
Correction to: Ultra-late response (> 24 weeks) to anti-CGRP monoclonal antibodies in migraine: a multicenter, prospective, observational study (Journal of Neurology, (2024), 271, 5, (2434-2443), 10.1007/s00415-023-12103-4)
No full textIn the original version of this article, degree “ERT” of author Bonassi Stefano was incorrectly written as author in author group. Author group which previously read: Piero Barbanti1,2 · Cinzia Aurilia1 · Gabriella Egeo1 · Stefania Proietti3 · Florindo D’Onofrio4 · Paola Torelli5 · Marco Aguggia6 · Davide Bertuzzo6 · Cinzia Finocchi7 · Michele Trimboli8 · Sabina Cevoli9 · Giulia Fiorentini1 · Bianca Orlando1 · Maurizio Zucco10 · Laura Di Clemente10 · Ilaria Cetta11 · Bruno Colombo11 · Monica Laura Bandettini di Poggio12 · Valentina Favoni9 · Licia Grazzi13 · Antonio Salerno14 · Antonio Carnevale15 · Micaela Robotti16 · Fabio Frediani16 · Claudia Altamura17 · Massimo Filippi11 · Fabrizio Vernieri17 · Stefano Bonassi2,4 · ERT; for the Italian Migraine Registry study group. Should have read: Piero Barbanti1,2 · Cinzia Aurilia1 · Gabriella Egeo1 · Stefania Proietti3 · Florindo D’Onofrio4 · Paola Torelli5 · Marco Aguggia6 · Davide Bertuzzo6 · Cinzia Finocchi7 · Michele Trimboli8 · Sabina Cevoli9 · Giulia Fiorentini1 · Bianca Orlando1 · Maurizio Zucco10 · Laura Di Clemente10 · Ilaria Cetta11 · Bruno Colombo11 · Monica Laura Bandettini di Poggio12 · Valentina Favoni9 · Licia Grazzi13 · Antonio Salerno14 · Antonio Carnevale15 · Micaela Robotti16 · Fabio Frediani16 · Claudia Altamura17 · Massimo Filippi11 · Fabrizio Vernieri17 · Stefano Bonassi2,3 · for the Italian Migraine Registry study group. And affiliation details for author Stefano Bonassi were incorrectly given as 2San Raffaele University, Rome, Italy 4Headache Center Neurology Unit, San Giuseppe Moscati Hospital, Avellino, Italy 2San Raffaele University, Rome, Italy 4Headache Center Neurology Unit, San Giuseppe Moscati Hospital, Avellino, Italy but should have been: 2San Raffaele University, Rome, Italy 3Clinical and Molecular Epidemiology, IRCCS San Raffaele (not 2 and 4) 2San Raffaele University, Rome, Italy 3Clinical and Molecular Epidemiology, IRCCS San Raffaele (not 2 and 4
Tracer Tests for Characterizing Malm Geothermal Reservoirs Within the German BMWi Project TRENDS: A Feasibility Study
No full textAbstractThe research project TRENDS (“Tracer-assisted evaluation of reservoir behavior under expansive deployment schemes for Malm geothermal resources in the Munich area”) aims at quantifying the hydrogeology of Malm geothermal resources with a focus on fluid transport parameters, and identifying possible restrictions to reservoir exploitation resulting from either hydraulic or geothermal heat supply ‘competition’ effects between ‘adjacent’ reservoirs. While it is beyond doubt that these aims cannot be achieved without the use of some fluid-based tracking procedure for quantifying fluid transport (viz.: tracer tests), the use of artificial tracers is challenged by the very large size of Malm geothermal reservoirs, implying very long residence times (RT) of circulating fluids and strong dilution of tracers therein. A series of M. Sc. thesis projects conducted at the University of Göttingen addresses tracer test design, evaluation and interpretation problems specifically associated with the ‘very long RT’ issue. Preliminary findings from these projects, and some recommendations for future tracer test design are presented
Avaliação de benchmarking da produção brasileira de leite, Santa Catarina e o município de Vitor Meireles
Get PDFDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.Introdução: Desenvolver-se-á o processo de Benchmarking da produção de leite no sistema de produção intensivo a pasto pelos estabelecimentos rurais da agricultura familiar do município de Vitor Meireles
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