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Search Results: 1 - 10 of 202929 matches for " ángela P; "
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Cicada (Magicicada) Tree Damage Detection Based on UAV Spectral and 3D Data  [PDF]
ngela Maria Klein Hentz, Michael P. Strager
Natural Science (NS) , 2018, DOI: 10.4236/ns.2018.101003
Abstract:
The periodical cicadas appear in regions of the United States in intervals of 13 or 17 years. During these intervals, deciduous trees are often impacted by the small cuts and eggs they lay in the outer branches which soon die off. Because this is such an infrequent occurrence and it is?so difficult to assess the damage across large forested areas, there is little information about the extent of this impact. The use of remote sensing techniques has been proven to be useful in forest health management to monitor large areas. In addition, the use of Unmanned Aerial Vehicles (UAVs) has become a valuable tool for analysis. In this study,?we evaluated the impact of the periodical cicada occurrence on a mixed hardwood forest using UAV imagery.?The goal was to evaluate the potential of this technology as a tool for forest health monitoring. We classified the cicada impact using two Maximum Likelihood classifications, one using only the high resolution spectral derived from leaf-on imagery (MLC 1), and in the second we included the Canopy Height Model (CHM)—derived from?leaf-on Digital Surface Model (DSM) and leaf-off Digital Terrain Model (DTM)—information in the classification process (MLC 2). We evaluated the damage percentage in relation to the total forest area in 15 circular plots and observed a range from 1.03%?-22.23% for MLC 1, and 0.02%?-?10.99% for MLC 2. The accuracy of the classification was 0.35 and 0.86, for MLC 1 and MLC 2, based on the kappa index. The results allow us to highlight the importance of combining spectral and 3D information to evaluate forest health features. We believe this approach can be applied in many forest monitoring objectives in order to?detect disease or pest impacts.
O sistema de saúde do escravo no Brasil do século XIX: doen?as, institui??es e práticas terapêuticas
P?rto,ngela;
História, Ciências, Saúde-Manguinhos , 2006, DOI: 10.1590/S0104-59702006000400013
Abstract: although the nineteenth century saw numerous attempts to deter the slave trade, it was also the period when brazil imported the greatest number of slaves in its history. the conditions under which slaves were transported, worked, and lived were largely responsible for their state of health. yet this topic barely makes an appearance in the field of history, and many disputed points remain to be settled. my research cross-references sources and topics in order to gather data on the hygienic lives of nineteenth-century slaves. by analyzing archival documents from hospitals, notary public offices, and church bodies, iconographic sources, and the medical literature, i have retrieved information that can be used towards writing a history of the healthcare system available to slaves.
A vida inteira que podia ter sido e que n?o foi: trajetória de um poeta tísico
P?rto,ngela;
História, Ciências, Saúde-Manguinhos , 2000, DOI: 10.1590/S0104-59702000000400003
Abstract: in a sketch of the life history of poet manuel bandeira (1886-1968) from the moment his tuberculosis was diagnosed, the article analyzes the various phases bandeira went through in his experience with the illness. knowing that one is afflicted with a serious disease impels efforts to preserve one?s identity, to adjust to living with the disease, and to mobilize resources to fight it. living with the progression of a disease in fact prompts the afflicted individual to undertake a systematic reconstruction of his or her identity. as the article shows, poetry was the instrument bandeira used to reshape his own self-image.
Representa??es sociais da tuberculose: estigma e preconceito
P?rto,ngela;
Revista de Saúde Pública , 2007, DOI: 10.1590/S0034-89102007000800007
Abstract: social representations of tuberculosis are analyzed at the turn of the 20th century, focusing on aspects associated to feelings and contradictory manifestations awakened by the disease. the romanticized pattern of experience of this disease was replaced by a more naturalistic vision, though the stigmas and prejudices are reinforced. to this day it is possible to detect some aspects about the way of perceiving tuberculosis, which marked its presence in the past. the persistence of the stigmatization of tuberculosis and of the people who suffer from it consists in a serious obstacle to the disease's control nowadays.
Fontes e debates em torno da saúde do escravo no Brasil do século XIX
P?rto,ngela;
Revista Latinoamericana de Psicopatologia Fundamental , 2008, DOI: 10.1590/S1415-47142008000500002
Abstract: this paper presents a sampling of recent academic production on the health of slaves in brazil and discusses current trends and debates on this topic. it focuses on both the current work in the area of history as well as the main sources gathered until now by the survey, coordinated by this author at casa de oswaldo cruz / fiocruz. the project has brought together these sources and organized them into a database, soon to be made available to the public.
A vida inteira que podia ter sido e que n o foi: trajetória de um poeta tísico
P?rto ?ngela
História, Ciências, Saúde-Manguinhos , 2000,
Abstract: O objetivo desse trabalho é tra ar a história de vida do poeta Manuel Bandeira (1886-1968), desde que se descobre tuberculoso, analisando as diversas fases que caracterizaram sua experiência com a doen a. Essa experiência, de se saber acometido de uma grave moléstia, envolve o esfor o de preserva o da própria identidade, a ado o de formas de ajustamento no convívio com a enfermidade e a mobiliza o de recursos no sentido de combatê-la. A vivência progressiva da doen a conduz o doente a um trabalho sistemático de reconstru o da identidade e a poesia, como poderemos observar, será o recurso adotado por Bandeira na reelabora o da imagem de si.
Sutilezas de la producción cartográfica en el mapa del Orinoco de Humboldt Subtleties of cartographic production in Humboldt’s Orinoco Map
ángela Pérez Mejía
Terra Brasilis : Revista da Rede Brasileira de História da Geografia e Geografia Histórica , 2007,
Abstract: Cuando en 1804 Alexander Von Humboldt y Aimé Bonpland salieron del territorio de la Nueva Granada para continuar con su recorrido por la América equinoccial, habían dejado en manos del Virrey Pedro Mendinueta y Muzquiz el primer mapa del río Magdalena (nunca antes dibujado en su totalidad), mapas que corregían la ruta del Orinoco y el plano de Cartagena y de Santa fé. Eran ocho pliegos de cartografía, que dadas las circunstancias políticas, representaban un objeto de porte imperial. El regalo era apenas una formalidad hacia quien les había permitido viajar sin restricciones por los territorios de Venezuela y Colombia. El verdadero legado que dejaba Humboldt quedaba en manos de sus amigos independentistas: un vasto conocimiento geográfico que ayudaría a alimentar la causa patriótica. La producción geográfica de la expedición de Humboldt y Bonpland tuvo repercusiones concretas en la formación de las nuevas repúblicas. No obstante, el proceso de producción de ese conocimiento geográfico, a menudo ignorado en nuestro afán por alabar al geógrafo, fue también el producto de una interesante red de relaciones personales, científicas y políticas cuya interpretación contribuye a nuestro conocimiento geográfico del momento. El presente artículo es una versión corregida del capítulo sobre la producción geográfica de Humboldt de mi libro La geografía de los tiempos difíciles (Pérez Mejía, 2002) y plantea una interpretación de la producción geográfica de Humboldt, concretamente de su mapa “Itinerario del Orinoco”, en busca de las claves sobre la multiplicidad de ese proceso de producción cartográfica y sus repercusiones locales. When Alexander Von Humboldt and Aimé Bonpland left the New Granade’s territory in 1804 to continue their trip across intertropical America, they left the first map of the Magdalena river in the hands of the Viceroy Pedro Mendinueta and Muzquiz (never before fully drawn), along with maps that corrected the Orinoco’s route and the Cartagena and Santa Fé chart. Under the political circumstances of the moment these eight comprised cartographic charts represented an imperial object but were a mere formality to thank those who had allowed them to travel with no restrictions through the territories of Venezuela and Colombia. The true heritage that Humboldt left was in the hands of his collaborators and friends, all supporters of the Independence movement, who would use this knowledge for the patriotic cause. The geographical production derived from Humboldt and Bonpland’s expedition had specific repercussions in the formation of the new republics. N
Vacinas e campanhas: as imagens de uma história a ser contada
P?rto,ngela;Ponte, Carlos Fidelis;
História, Ciências, Saúde-Manguinhos , 2003, DOI: 10.1590/S0104-59702003000500013
Abstract: the iconography on vaccines and vaccination campaigns is of great value to those interested in the subject. especially noteworthy are the representations depicting vaccines and the diseases they are meant to fight, the surroundings where vaccination takes place, the media and strategies used to convince the public, and what used to be known about these diseases and the vaccines employed to combat them. this issue of our journal offers readers a glimpse into two collections that have much to contribute towards an understanding of the history of immunization policy in brazil: material from the exhibit a revolta da vacina: da varíola às campanhas de imuniza??o (the vaccine rebellion: from smallpox to immunization campaigns), inaugurated in 1994, and material on the eradication of polio in brazil, based on the 1995 exhibit um mundo sem pólio (a world without polio). the article includes an analysis of changes in ad campaigns that encourage the public to vaccinate children.
Alimentación del paciente de cáncer en fase avanzada y terminal: consideraciones éticas y recomendaciones prácticas
Suárez Pérez,ángela J;
Humanidades M??dicas , 2006,
Abstract: the main objective of the treatment to the cancer patient in advanced and terminal phases is to reach to the possible best quality of life. for this an integral attention is required, which scientific, philosophical and ethics base preserves, in the end of life, the human dimension. the efficiency and effectiveness of attention depends on how much attention is adapted to each patient's peculiarities and concrete conditions. among the symptoms that more frequently impact in this patients is the anorexia, that not only carries physical consequences, but rather it anorexia are exposed, some ethical considerations around the feeding of these patients and practical recommendations are offered, guided to achieve an appropriate handling of the feeding that contributes to maintain an acceptable quality of life in this stage
Ajuste de un modelo no lineal a la variable precipitación en una estación hidro-meteorológica de Colombia
BRI?EZ,áNGELA P; NIETO,FABIO H;
Revista Colombiana de Estadística , 2005,
Abstract: in the literature on time series analysis it has been established in recent years that the hydrological/meteorological time series are well described by nonlinear models, in particular by the setar (self- exciting threshold autoregressive) models. in this paper, a nonlinear setar model is fitted to the precipitation variable that is observed in a certain colombian hydrological/ meteorological station. in the fitting process, two alternative methodologies, which have been proposed in the literature about nonlinear time series models, are combined.
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