Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 9 de 9
Filtrar
Mais filtros










Intervalo de ano de publicação
1.
Environ Monit Assess ; 195(1): 137, 2022 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-36417002

RESUMO

Studies on water surface temperature (WST) from thermal infrared remote sensing are still incipient in Brazil, and for many water resources, they do not exist. Many algorithms have been developed to estimate surface temperature in satellite images. There are also many difficulties in implementing these algorithms due to their complexity, especially in free software, which restricts the satisfactory processing of these data by users of the technique. Thus, this work aimed to validate an algorithm used to estimate land surface temperature (LST) when applied to the surface of inland water bodies. Water surface temperature estimates (WSTe) were generated from Itaipu State of Paraná (PR) reservoir, Brazil, calculated from Landsat 8 - TIRS satellite images (WSTs) and water surface temperature data from 37 in situ stations (WSTi). A linear regression model of the WSTe was generated in 60% of the samples and its validation with the remaining 40%, subject to prior evaluation of some statistical indicators. The model was considered significant since the coefficient of determination (r2) was 0.90 (95% of confidence), root mean square deviation (RMSD) 0.8 °C, Willmott Index (d) = 0.97, and Nash-Sutcliffe efficiency coefficient (NSE) = 0.89. The methodology used to extract WSTs from the Python QGIS plugin was relatively quick to apply, easy to understand, and had a better performance of the estimates than those presented in the literature review.


Assuntos
Monitoramento Ambiental , Água , Temperatura , Brasil , Monitoramento Ambiental/métodos , Modelos Lineares
2.
Pharmaceuticals (Basel) ; 15(9)2022 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-36145364

RESUMO

Propolis has been used since ancient times for the treatment of skin diseases and, currently, its pharmacological potential for healing and repairing various types of wounds is widely cited in the literature. The healing properties of propolis are mainly attributed to its composition which is rich in phenolic compounds, and propolis has aroused the interest of the pharmaceutical industry as a low-cost product as compared with other treatments and medications; however, most of the published data refer to its effects in vitro and in vivo and, so far, few clinical studies have been carried out proving its therapeutic efficacy. In this article, we aimed to review clinical trail data published in Portuguese, Spanish, and English, in Scielo, PubMed, Google Scholar, Medline, and Lilacs between 1990 and 2021 on the clinical use of propolis for skin ulcers. The potential of propolis as an alternative healing treatment for skin wounds such as diabetic, venous, and surgical wounds, as well as wounds caused by burns, etc., is mainly due to its evidenced properties such as antimicrobial, anti-inflammatory, analgesic, and angiogenesis promoter effects. However, there is a need to standardize the type of administration and the concentration of propolis for each type of wound. Furthermore, further clinical studies are essential to add information about propolis safety and for obtaining the best possible therapeutic benefits from its use.

3.
Environ Monit Assess ; 193(2): 74, 2021 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-33469714

RESUMO

Sea ice is one of the main components of the cryosphere that modifies the exchange of heat and moisture between the ocean and atmosphere, regulating the global climate. In this sense, it is important to identify the concentration of sea ice in different regions of Antarctica in order to measure the impact of environmental changes on the region's ecosystem. The objective of this study was to evaluate the performance of the multiple linear regression and Box-Jenkins methods for predicting the concentration of sea ice along the northwest coast of the Antarctic Peninsula. Sea ice concentration data from May to November for the period 1979-2018 were extracted from passive remote sensors including a scanning multichannel microwave radiometer, special sensor microwave imager, and special sensor microwave imager/sounder. Meteorological variables from the atmospheric reanalysis model ERA5 of the European Center for Medium-Range Weather Forecasts were used as predictor variables, and the leave-one-out cross-validation technique was used to calibrate and validate the models. It was found that both statistical models have similar performance when analyzing residual analysis results, root mean square error of cross-validation, and final accuracy and residual standard deviation, these responses being related to the regionalization of the study area and to the Box-Jenkins presents strong, homogeneous, and stable correlations in the time series modeled for each pixel.


Assuntos
Ecossistema , Camada de Gelo , Regiões Antárticas , Monitoramento Ambiental , Modelos Estatísticos
4.
Environ Monit Assess ; 192(9): 559, 2020 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-32747987

RESUMO

This article aims to analyze the dynamics of freezing and thawing of Antarctic lakes located in ice-free areas on Nelson Island and Fildes Peninsula, where response to changes in air temperature and precipitation rates occur rapidly, during the period from July 2016 to December 2018. In these places, which are difficult to access, remote sensing is an important alternative, especially considering the use of active remote sensors such as the Synthetic Aperture Radar (SAR), which has less restriction regarding the presence of clouds over the study area. Three backscatter thresholds were defined (σ) for the identification of the physical state of the water of the lakes of the study region, applied in Sentinel 1A SAR (S1A) images under Horizontal Horizontal (HH) polarization and Interferometric Wide (IW) imaging mode. These images, along with the air temperature data obtained by the Interim Re-Analysis (ERA-Interim) atmospheric reanalysis model, provided the evidence for the interpretation of the freezing and thawing periods of the lakes. The thresholds applied for the definition of the physical state of the lake water were greater than - 14 dB for frozen water, between - 14 and - 17 dB for the surface, with up to 60% of their frozen area, and less than - 17 dB for open water. The temporal analysis revealed that the lakes start to thaw in October, become completely thawed in February, and freeze again in March. Nevertheless, it can be said that the S1A satellite allows a satisfactory identification of the liquid and solid phases of the water in the lakes of the study region.


Assuntos
Lagos , Radar , Regiões Antárticas , Monitoramento Ambiental , Congelamento , Ilhas
5.
Rev. psicol ; 5(2): 21-38, jul.-dez. 2014.
Artigo em Português | Index Psicologia - Periódicos | ID: psi-64854

RESUMO

O objetivo deste trabalho é pontuar as diversas formas de controle usadas ao longo da história da sociedade ocidental, assim como verificar as estratégias de controle usadas em sociedades nas quais o povo não é atingido integralmente pelas instituições formais de controle (escola, hospital, fábrica). Para elucidar esse caso trazemos como referência o Brasil em que os habitantes das favelas e periferias vêm sendo alvo de um conjunto de dispositivos de segurança e participação promovidos por um capitalismo mais flexível da atual sociedade de controle que inclui para governar e ser governado, onde as formas de vida são colocadas no epicentro da gestão política para além dos muros das instituições clássicas comportando uma racionalidade cínica como recurso útil para as estratégias de construção social de uma realidade para o controle de certas populações ou grupos. Para exemplificar essa questão, trazemos nesse artigo uma análise crítica do Programa Nacional de Segurança Pública com Cidadania (PRONASCI) o qual acompanhamos sua aplicação no bairro Guajuviras, periferia da cidade de Canoas-RS(AU)


Assuntos
Humanos , Áreas de Pobreza , Poder Psicológico , Controle Social Formal
6.
Rev. psicol. (Fortaleza, Online) ; 5(2): 21-38, jul.-dez. 2014.
Artigo em Português | LILACS, Index Psicologia - Periódicos | ID: biblio-877471

RESUMO

O objetivo deste trabalho é pontuar as diversas formas de controle usadas ao longo da história da sociedade ocidental, assim como verificar as estratégias de controle usadas em sociedades nas quais o povo não é atingido integralmente pelas instituições formais de controle (escola, hospital, fábrica). Para elucidar esse caso trazemos como referência o Brasil em que os habitantes das favelas e periferias vêm sendo alvo de um conjunto de dispositivos de segurança e participação promovidos por um capitalismo mais flexível da atual sociedade de controle que inclui para governar e ser governado, onde as formas de vida são colocadas no epicentro da gestão política para além dos muros das instituições clássicas comportando uma racionalidade cínica como recurso útil para as estratégias de construção social de uma realidade para o controle de certas populações ou grupos. Para exemplificar essa questão, trazemos nesse artigo uma análise crítica do Programa Nacional de Segurança Pública com Cidadania (PRONASCI) o qual acompanhamos sua aplicação no bairro Guajuviras, periferia da cidade de Canoas-RS.


The aim of this work is to punctuate several forms of control used along the history of the western society, as well as it will verify the strategies of control used in societies in which the people are not reached integrally by the formal institutions of control (school, hospital, factory). To elucidate this case we bring like reference Brazil in which the inhabitants of the "favelas" and suburbs are a target of a set of security operations and participation promoted by a capitalism more flexible of the current society of control that it includes to govern and to be governed, where the forms of life are put in the epicenter of the political management besides the walls of the classic institutions when populations or groups are holding a cynical rationality as useful resource for the strategies of social construction of a reality for the control of some population or groups. To exemplify this question, we bring in this article a critical analysis of the National Program of Public Security with Citizenship (PRONASCI) in which we follow closely his application in the district Guajuviras, suburb of the city of Canoas-RS.


Assuntos
Sistemas Políticos , Pobreza , Áreas de Pobreza , Segurança , Políticas de Controle Social , Controle Social Formal , Capitalismo , Política Pública , Poder Público , Fatores Socioeconômicos , Fatores Sociológicos , Estado
7.
Rev. iberoam. micol ; 27(2): 98-100, abr.-jun. 2010. ilus
Artigo em Inglês | IBECS | ID: ibc-79938

RESUMO

AntecedentesEl pseudomicetoma dermatofítico es una infección fúngica subcutánea causada por Microsporum canis.ObjetivosEste trabajo describe un caso de pseudomicetoma dermatofítico presentado por un gato persa.Paciente y métodoUna gata de raza Persa, de 3 años de edad, con signos de alopecia, eritema y nódulos ulcerados, los dos primeros distribuidos en todo el cuerpo, presentó exudado granuloso de color amarillento en los nódulos ulcerados de la región dorsal, próxima a la cola. Fueron realizados exámenes micológicos e histopatológicos.ResultadosEl diagnóstico de pseudomicetoma dermatofítico fue confirmado a través del cultivo y examen histopatológico de las muestras extraídas. El tratamiento se basó en el suministro de griseofulvina y extirpación quirúrgica, obteniéndose una respuesta eficaz durante los primeros meses con reducción en el número de nódulos observados. Con el transcurso del tiempo, y aún bajo tratamiento, fue constatada la reincidencia de las lesiones que finalmente llevaron a la muerte del animal.ConclusionesLa evolución clínica evidenció el carácter progresivo y recurrente del pseudomicetoma dermatofítico(AU)


BackgroundDermatophytic pseudomycetoma is a subcutaneous fungal infection by Microsporum canis.AimsThis work describes a case of dermatophytic pseudomycetoma in a Persian cat.Patient and methodsA 3-year old female Persian cat showing alopecia, scaling and ulcerated nodules throughout the body, with presence of ulcerated nodules with yellow granular discharges on the dorsum, close to the tail. Mycological and histopathological examinations were realized.ResultsDiagnosis of dermatophytic pseudomycetoma was established. The cat was treated with griseofulvin, and surgical excision was carried out. Response to therapy was effective during the first months, during which a reduction in nodule frequency was observed. However, despite maintaining the therapy levels, the lesions relapsed and progressed to the point of causing the animal's death.ConclusionThe clinic evolution showed the progressive and recurrent character of dermatophytic pseudomycetoma(AU)


Assuntos
Animais , Gatos , Micetoma/diagnóstico , Microsporum/isolamento & purificação , Griseofulvina/uso terapêutico , Gatos , Dermatomicoses/diagnóstico , Arthrodermataceae/isolamento & purificação
8.
Rev Iberoam Micol ; 27(2): 98-100, 2010 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-20346294

RESUMO

BACKGROUND: Dermatophytic pseudomycetoma is a subcutaneous fungal infection by Microsporum canis. AIMS: This work describes a case of dermatophytic pseudomycetoma in a Persian cat. PATIENT AND METHODS: A 3-year old female Persian cat showing alopecia, scaling and ulcerated nodules throughout the body, with presence of ulcerated nodules with yellow granular discharges on the dorsum, close to the tail. Mycological and histopathological examinations were realized. RESULTS: Diagnosis of dermatophytic pseudomycetoma was established. The cat was treated with griseofulvin, and surgical excision was carried out. Response to therapy was effective during the first months, during which a reduction in nodule frequency was observed. However, despite maintaining the therapy levels, the lesions relapsed and progressed to the point of causing the animal's death. CONCLUSION: The clinic evolution showed the progressive and recurrent character of dermatophytic pseudomycetoma.


Assuntos
Doenças do Gato/microbiologia , Dermatomicoses/veterinária , Microsporum/fisiologia , Animais , Antifúngicos/uso terapêutico , Doenças do Gato/diagnóstico , Doenças do Gato/tratamento farmacológico , Doenças do Gato/patologia , Doenças do Gato/cirurgia , Gatos , Terapia Combinada , Dermatomicoses/diagnóstico , Dermatomicoses/tratamento farmacológico , Dermatomicoses/microbiologia , Dermatomicoses/patologia , Dermatomicoses/cirurgia , Diagnóstico Diferencial , Progressão da Doença , Feminino , Griseofulvina/uso terapêutico , Micetoma/diagnóstico , Recidiva
9.
Epidemiol. serv. saúde ; 19(2): 143-154, 2010. tab
Artigo em Português | LILACS | ID: lil-557596

RESUMO

Foi realizado um estudo transversal, de base populacional, com 1.951 indivíduos de 14 anos e mais, com o objetivo deinvestigar a associação entre cuidados alimentares e variáveis demográficas, socioeconômicas e outros hábitos relacionados à saúde em Canoas-RS. Desses, 45 por cento referiram consumo de gorduras sem restrições, 61 por cento de doces, 64 por cento de carnes e 81 por cento de farinhas/massas. Ao consumo de carnes sem restrições, associaram-se: sexo masculino; escolaridade entre cinco e oitoanos; idade ≤59 anos; consumo de gorduras e farinhas/massas sem restrições; e não uso de homeopatia. Ao consumo de gorduras sem restrições, associaram-se: sexo masculino; escolaridade ≤8 anos; idade ≤59 anos; auto-percepção de vida não-saudável; tabagismo; uso de álcool, não uso de chás e medicamentos; consumo de carnes, doces e farinhas/massas semrestrições; não realização de exames preventivos. Ao consumo de doces sem restrições, associaram-se: idade ≤59 anos; autopercepção de vida não-saudável; consumo de gorduras e farinhas/massas sem restrições. Ao consumo de farinhas/massassem restrições, associaram-se: sexo masculino, idade ≤59 anos; consumo de carnes, gorduras e doces sem restrições. As associações evidenciadas entre ausência de cuidados alimentares e outros hábitos relacionados ao uso de álcool e tabaco, fatores de risco para doenças crônico-degenerativas, apontam para a necessidade da implementação de políticas intersetoriaisde promoção da saúde.


A cross-sectional population-based study was conducted with 1,951 individuals aged >14 years old to investigate the association between concerns about eating habits and eating habits and demographic, socio-economic, and other health-related habits in residents of Canoas, Rio Grande do Sul. Individuals reported unrestricted consumption of fats (45 percent), meat (64 percent), sweets (61 percent), and flours/pastas (81 percent). The variables associated with unrestricted consumption of meat were: male sex; five to eight years of schooling; people with unrestricted consumption of fats and flours/pastas; and no homeopathic treatment. The variables associated with unrestricted consumption of fats were: male sex; individuals with 8 years of schooling or less; self-perception of their unhealthy lifestyle; smoking; alcohol consumption, no tea drinking and nonuse of medication; unrestricted consumption of meats, sweets and flours/pastas, and absence of preventive exams. The factors associated with unrestricted consumption of sweets were self-perception of their unhealthy lifestyle; and unrestricted consumption of fats and flours/pastas. The variables associated with unrestricted consumption of flours/pastas were: male sex; and unrestricted intake of fats, meats and sweets. Regarding the age group, unrestricted consumption for all variables was associated mainly with people aged less than 59 years old. Theassociations between eating habits and other risk factors for chronic diseases, like those related to alcohol and tobacco,point out the need for the plementation of health promotion inter-organizational policies.


Assuntos
Humanos , Masculino , Feminino , Adulto , Promoção da Saúde , Comportamento Alimentar , Estilo de Vida , Brasil , Estudos Transversais , Prevalência , Saúde Pública
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...