15 research outputs found
Determinação da frequência de haplótipos da B-globina ovina e comparação com características fenotípicas em ovinos das raças Santa Inês, Texel e White Dorper submetidos à infecção natural por Haemonchus contortus.
No full textA seleção de raças ovinas naturalmente resistentes aos nematódeos gastrintestinais pode ser uma ferramenta de controle das infecções por Haemonchus contortus
Source code for GUGPS dataset
No full textThis is the source code for developing the GUGPS (Global urban growth projection using SLEUTH urban growth model) published at Scientific Data. Please read the README.docx file inside carefully prior to use. The code consists of two R programming language scripts (version R 3.4.3; https://www.r-project.org/), which prepare simulation inputs and integrate outputs. The script is internally documented to assist understanding and customisation for further use.We have also shared the modified SLEUTH model, as well as the scenario.jinja file in the Python package sleuth-automation (version 1.0.2; https://pypi.org/project/sleuth-automation/).</div
The influence of financial literacy on the financial behavior of auto-rickshaw drivers in Island Garden city of Samal
No full textThis study Financial Literacy and financial Behavior of Auto-rickshaw Drivers in Island Garden City of Samal was conducted to determine the level of financial literacy and financial behavior of auto-rickshaw drivers in Island Garden City of Samal. Through the study, the researchers were able to analyze, evaluate, organize and gather the data accordingly. The study was a quantitative descriptive correlational research design. The statistical tools employed were mean, standard deviation and Pearson-r. The data was gathered through the use of a survey questionnaire distributed to 250 auto-rickshaw drivers in the Island Garden City of Samal. Results showed that determinants generated moderate mean scores and showed that the said behavior was sometimes manifested; also, financial literacy generated a high mean score and showed that the auto-rickshaw drivers are well literate. It revealed that the two indicators, saving and investing, correlate with financial literacy. Moreover, the overall result shows a no significant relationship between financial literacy and financial behavior. Therefore, the result of the study suggests exploring more factors that may influence financial behavior
Seascape shadows: Life in the ruins of the edible bird's nest harvest in northern Palawan, the Philippines
No full textThe intensifying extraction, privatization, and conservation of maritime spaces are transforming seascapes globally. Amidst rapid coastal change and the ambiguous reconfiguration of oceans as frontiers are coastal dwellers who occupy the shadows of these seascapes. In contrast to the capture of high-profile marine species, the harvest of the edible nests of balinsasayaw (swiftlet, Aerodramus fuciphagus) remains largely concealed at the interstitial spaces between land, coast, and sea. In the Philippines, harvesters known as busyador negotiate social relations, political networks, and karst systems to extract these lucrative nests. Despite the nest industry growing in value in Southeast Asia, we show how the busyador struggle in precarious social relations and spaces peripheral to coastal governance in northern Palawan Island. Building on the concept of ‘seascape assemblages’, we emphasize the importance of the less visible human-nonhuman relations that shape the nest harvest and trade. We trace the marginal social histories of the balinsasayaw by highlighting the precarious nature of the harvest, revealing how the busyador are subject to unfair working conditions, dispossession, and violence. We argue that as state actors and local elites reconfigure oceans as frontiers for development and conservation, struggles over labour and tenure rights, livelihood opportunities, and justice at sea are disregarded
Employed but not included: the case of consumer-worers in mental health care services
No full textThis article explores how employees with mental illness perceive HRM and its impact, drawing on consumer-centred perspectives. Using the case of consumer-workers employed for their lived experience of mental illness in mental health care services, we investigate the degree to which they feel included or marginalised by HR systems, processes and practices. Through a mixed method study designed along co-production principles, we found consumer-workers faced different but interrelated problems stemming from their status: a general lack of understanding of the role and its purpose; inequity in pay rates, workplace conditions, and training and development; as well as employment precarity and difficulties around disclosure, stigmatisation and discrimination. Overall, organisational support for these unique roles seemed to be lacking despite the clear business need for these positions. We make several contributions: firstly, we show how employees in a unique role that requires experience of mental illness are impacted by the interaction between HR systems, processes and practices; secondly, we illustrate why HR scholars need to engage with varied paradigms of knowledge about mental illness beyond the dominant medical/psychiatric one; and thirdly, we demonstrate a methodology that not only explores employee perspectives, but includes employees in the research design and process
Síntese de 1,3-diinos via acoplamento de acetilenos terminais catalisada por CuI sob irradiação de micro-ondas
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.No presente trabalho, desenvolveu-se uma nova metodologia sintética eficiente, simples e ambientalmente adequada para a síntese de compostos 1,3-diinos simétricos e não-simétricos. O esqueleto 1,3-diino ocorre em diversos produtos naturais com potenciais atividades biológicas e/ou farmacológicas. Além disso, os diacetilenos conjugados são blocos construtores importantes numa série de reações orgânicas.A metodologia envolve homoacoplamento e acoplamento cruzado de alcinos terminais, na presença de 1,5 eq de TMEDA e CuI em quantidade catalítica. As reações foram conduzidas a 100 ºC sob irradiação de micro-ondas em tempos de 10 minutos na ausência de solvente. A estratégia sintética adotada permitiu a obtenção de diferentes compostos 1,3-diinos simétricos e não-simétricos em rendimentos variando de 21 a 98%.Como principais vantagens do método desenvolvido, podem-se citar a economia energética, uma vez que a irradiação de micro-ondas proporcionou a diminuição dos tempos reacionais, a não utilização de bases e/ou solventes, a simplicidade operacional e a minimização na geração de resíduos.Abstract : In the present work, we developed a simple, efficient and environmentally friendly synthetic methodology for the synthesis of symmetric and asymmetric 1,3-diynes compounds. The 1,3-diyne skeleton occurs in several natural products with potential biological and/or pharmacological activities. Besides, conjugated diynes are important building blocks in several organic reactions.The methodology involves homocoupling and cross-coupling of terminal alkynes in the presence of 1.5 eq. of TMEDA and catalytic amount of CuI. The reactions were carried out at 100 °C for 10 minutes under microwave irradiation in the absence of solvent. The synthetic strategy adopted afforded different compounds 1,3- diynes symmetrical and ansymmetrical in 21-98 % yield.The main advantage of the developed method, may be mentioned saving of energy, since microwave irradiation gave the decrease in reaction times, no use of bases and / or solvents, operational simplicity and minimizing the generation of waste
Proposta de compartimentação da Lagoa da Conceição, Florianópolis/SC, através de parâmetros físico-químicos
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Ambiental, Florianópolis, 2007Este estudo apresenta uma nova proposta de compartimentação da Lagoa da Conceição, Florianópolis, SC, bem como a avaliação do seu grau de eutrofização através de parâmetros físico-químicos, variação sazonal e espacial das características químicas dos sedimentos de fundo, avaliação do impacto ambiental causado pela presença de metais pesados nos sedimentos de fundo e avaliação das concentrações de metais pesados em bioindicadores. Para tal foram analisadas amostras da água e sedimentos, coletadas em 10 (dez) pontos distintos, assim distribuídas: coluna d'água (superfície, meio, fundo) e sedimento, além de coleta e análise de organismos do compartimento biótico. O nitrogênio um dos elementos mais importantes no metabolismo de ecossistemas aquáticos atua como fator limitante da produção primária, não tendo a luminosidade como limitação. Foi observada durante o período estudado uma visível estratificação das concentrações de oxigênio dissolvido, obtendo-se um perfil clinogrado. Verificou-se uma relação direta com maiores teores de carbono orgânico e metais pesados, para os sedimentos de textura mais fina e menores correlações com os de textura mais grossa com o sedimento arenoso. A Lagoa da Conceição deve ser classificada como pouco a moderadamente poluída. Porém, deve-se salientar que apesar do enquadramento como pouco a moderadamente poluída, os valores apresentados representam um enriquecimento de até dez vezes em metais como cobre, chumbo, manganês, zinco e níquel, excetuando-se cádmio que não apresentou valores significativos nos sedimentos em comparação a trabalhos anteriores. Foram encontradas concentrações médias acima das estabelecidas por BOWEN (1966), do metal cobre nos organismos Calinnectes danae (Siri azul) e Mugil curema (Tainha), chumbo foi detectado em Calinnectes danae (Siri azul), Anomalocardia brasiliana (Berbigão) e Brachidontes darwininus (Marisco), concentrações de manganês foi detectada em Anomalocardia brasiliana (Berbigão) e Brachidontes darwininus (Marisco). Os demais organismos Penaeus paulensis e Penaeu brasiliensis (Camarão rosa), Diapterus rhombeus (Carapeba) e Micropogonias furnieri (Corvina) não apresentaram valores médios acima das concentrações estabelecidas pela literatura. Através da análise de componentes principais propõem-se uma nova compartimentação da Lagoa da Conceição dividindo-a em quatro subsistemas, de acordo com suas características comuns. Conclusivamente, a Lagoa da Conceição vem sofrendo um acelerado processo de eutrofização antropogênica, ocasionada pela ocupação inadequada de seus entornos e mal uso de seus recursos, tal fato está sendo minimizado pelo seu grande volume d'água e hidrodinâmica do seu corpo lagunar. Mas, podemos afirmar que o ingresso de nutrientes está sendo maior que a ciclagem de água do corpo lagunar e que medidas preventivas devem ser tomadas.The present study introduce a new proposal for the compartmentalization of the Conceição Lagoon, Florianópolis, SC, as well as the evaluation of its eutrofication level by means of physicho-chemical parameters, seasonal and spatial fluctuation of the benthic sediments chemical characters, evaluation of the environmental impact of the benthic sediments heavy metals and of their occurrence in bioindicators. To accomplish that goal water samples were taken for analysis from ten distinct points distributed through the water column (surface, half-deep and deep water). Sediment samples were also collected and analyzed as well as organisms from the local biota. Nitrogen as one of the most important elements of the aquatic ecosystems metabolism worked as a limiting factor on the primary production, as long as luminosity didn't. During this study it was observed a marked stratification of the dissolved oxygen levels, building up a clinograd profile. It was noted a direct relation of greater organic carbon and heavy metal content with finer textured sediments and lower correlations with the coarser ones and also the sandy sediments. The Conceição Lagoon should be assigned as low to moderately polluted. Nevertheless it is work to note that besides this the present work showed up enrichment factors up to ten times of the concentration of copper, lead, manganese, zinc and nickel, with a exception to cadmium that didn't showed appreciable values when compared to previous researches. It was found mean concentration values above those mentioned by BOWEN (1966) concerning copper in the organisms Calinnectes danae ("Siri azul") and Mugil curema ("Tainha"). Lead was detected in Calinnectes danae ("Siri azul"), Anomalocardia brasiliana ("Berbigão") and Brachidontes darwininus ("Marisco"). Manganese concentrations were found in Anomalocardia brasiliana ("Berbigão") and Brachidontes darwininus ("Marisco"). The other investigated organisms Penaeus paulensis and Penaeus brasiliensis ("Camarão rosa"), Diapterus rhombeus ("Carapeba") and Micropogonias furnieri ("Corvina") didn't showed mean concentration values above those mentioned in the literature. By means of the analysis of the main components it is proposed a new compartmentalization of the Conceição Lagoon in four subsystems, according to their common features. It is concluded that Conceição Lagoon has been suffering an accelerated eutrofication process of anthropogenic origin due to inadequate occupation of its surroundings and bad use of their resources. This fact is being minimized by its large water volume and the hydrodynamics of the lagoon body. However it could be said that the nutrient intake is larger than the water cycling of the lagoon and preventive measures should be assumed
Prehospital transdermal glyceryl trinitrate in patients with ultra-acute presumed stroke (RIGHT-2): an ambulance-based, randomised, sham-controlled, blinded, phase 3 trial
No full text© 2019 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license Background: High blood pressure is common in acute stroke and is a predictor of poor outcome; however, large trials of lowering blood pressure have given variable results, and the management of high blood pressure in ultra-acute stroke remains unclear. We investigated whether transdermal glyceryl trinitrate (GTN; also known as nitroglycerin), a nitric oxide donor, might improve outcome when administered very early after stroke onset. Methods: We did a multicentre, paramedic-delivered, ambulance-based, prospective, randomised, sham-controlled, blinded-endpoint, phase 3 trial in adults with presumed stroke within 4 h of onset, face-arm-speech-time score of 2 or 3, and systolic blood pressure 120 mm Hg or higher. Participants were randomly assigned (1:1) to receive transdermal GTN (5 mg once daily for 4 days; the GTN group) or a similar sham dressing (the sham group) in UK-based ambulances by paramedics, with treatment continued in hospital. Paramedics were unmasked to treatment, whereas participants were masked. The primary outcome was the 7-level modified Rankin Scale (mRS; a measure of functional outcome) at 90 days, assessed by central telephone follow-up with masking to treatment. Analysis was hierarchical, first in participants with a confirmed stroke or transient ischaemic attack (cohort 1), and then in all participants who were randomly assigned (intention to treat, cohort 2) according to the statistical analysis plan. This trial is registered with ISRCTN, number ISRCTN26986053. Findings: Between Oct 22, 2015, and May 23, 2018, 516 paramedics from eight UK ambulance services recruited 1149 participants (n=568 in the GTN group, n=581 in the sham group). The median time to randomisation was 71 min (IQR 45–116). 597 (52%) patients had ischaemic stroke, 145 (13%) had intracerebral haemorrhage, 109 (9%) had transient ischaemic attack, and 297 (26%) had a non-stroke mimic at the final diagnosis of the index event. In the GTN group, participants' systolic blood pressure was lowered by 5·8 mm Hg compared with the sham group (
Cartografía de alta resolución de la cubierta del suelo y clasificación de los cultivos en la cuenca del Loukkos (norte de Marruecos): Un enfoque que utiliza las series temporales de SAR Sentinel-1
No full text[EN] Remote sensing has become more and more a reliable tool for mapping land cover and monitoring cropland. Much of the work done in this field uses optical remote sensing data. In Morocco, active remote sensing data remain under-exploited despite their importance in monitoring spatial and temporal dynamics of land cover and crops even during cloudy weather. This study aims to explore the potential of C-band Sentinel-1 data in the production of a high-resolution land cover mapping and crop classification within the irrigated Loukkos watershed agricultural landscape in northern Morocco. The work was achieved by using 33 dual-polarized images in vertical-vertical (VV) and vertical-horizontal (VH) polarizations. The images were acquired in ascending orbits between April 16 and October 25, 2020, with the purpose to track the backscattering behavior of the main crops and other land cover classes in the study area. The results showed that the backscatter increased with the phenological development of the monitored crops (rice, watermelon, peanuts, and winter crops), strongly for the VH and VV bands, and slightly for the VH/VV ratio. The other classes (water, built-up, forest, fruit trees, permanent vegetation, greenhouses, and bare lands) did not show significant variation during this period. Based on the backscattering analysis and the field data, a supervised classification was carried out, using the Random Forest Classifier (RF) algorithm. Results showed that radiometric characteristics and 6 days time resolution covered by Sentinel-1 constellation gave a high classification accuracy by dual-polarization with Radar Ratio (VH/VV) or Radar Vegetation Index and textural features (between 74.07% and 75.19%). Accordingly, this study proves that the Sentinel-1 data provide useful information and a high potential for multi-temporal analyses of crop monitoring, and reliable land cover mapping which could be a practical source of information for various purposes in order to undertake food security issues.[ES] La teledetección se ha convertido en una herramienta cada vez más fiable para cartografiar la cubierta vegetal y controlar las tierras de cultivo. Gran parte de los trabajos realizados en este campo utilizan datos ópticos de teledetección. Además, en Marruecos, los datos de teledetección activa siguen estando infrautilizados, a pesar de su importancia para el seguimiento de la dinámica espacial y temporal de la cubierta vegetal y de los cultivos, incluso con tiempo nublado. Este estudio tiene como objetivo explorar el potencial de los datos de la banda C de Sentinel-1 en la producción de una cartografía de alta resolución de la cubierta del suelo y la clasificación de los cultivos dentro del paisaje agrícola de la cuenca del Loukkos de regadío en el norte de Marruecos. Este trabajo se ha realizado utilizando 33 imágenes de doble polarización vertical-vertical (VV) y vertical-horizontal (VH). Las imágenes fueron adquiridas en órbitas ascendentes entre el 16 de abril y el 25 de octubre de 2020, con el propósito de rastrear el comportamiento de retrodispersión de los principales cultivos y otras clases de cobertura del suelo en el área de estudio. Los gráficos obtenidos muestran que la retrodispersión aumenta con el desarrollo fenológico de los tres cultivos monitorizados (arroz, sandía, cacahuetes, cultivos de invierno), fuertemente para las bandas VH y VV, y ligeramente para el ratio VH/VV. Las otras clases (agua, edificado, bosque, árboles frutales, vegetación permanente, invernaderos y tierras desnudas) no muestran una variación significativa durante este periodo. A partir del análisis de retrodispersión y de los datos de campo, se llevó a cabo una clasificación supervisada, utilizando el algoritmo Random Forest Classifier (RF). Los resultados muestran que las características radiométricas y la resolución temporal para los 6 días cubiertos por la constelación Sentinel-1 dan una alta precisión de clasificación por polarización dual con Ratio de Radar (VH/VV) o Índice de Vegetación de Radar y características de la textura (entre 74,07% y 75,17%). En consecuencia, este estudio demuestra que los datos de Sentinel-1 proporcionan información útil y un alto potencial para los análisis multitemporales de seguimiento de los cultivos, así como una cartografía fiable de la cubierta terrestre que debería ser una fuente de información práctica para para varios propósitos a fin de acometer cuestiones de seguridad alimentaria.Nizar, EM.; Wahbi, M.; Ait Kazzi, M.; Yazidi Alaoui, O.; Boulaassal, H.; Maatouk, M.; Zaghloul, MN.... (2022). High Resolution Land Cover Mapping and Crop Classification in the Loukkos Watershed (Northern Morocco): An Approach Using SAR Sentinel-1 Time Series. Revista de Teledetección. (60):47-69. https://doi.org/10.4995/raet.2022.17426OJS476960Abdikan, S., Sanli, F.B., Ustuner, M., Calò, F., 2016. LAND COVER MAPPING USING SENTINEL-1 SAR DATA. ISPRS - Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci. 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Feasibility of reporting results of large randomised controlled trials to participants:experience from the Fluoxetine or Control under supervision (FOCUS) trial
No full textObjectives: Informing research participants of the results of studies in which they took part is viewed as an ethical imperative. However, there is little guidance in the literature about how to do this. The Fluoxetine or Control Under Supervision Trial (FOCUS) randomised 3127 patients with a recent acute stroke to six months of fluoxetine or placebo and was published in Lancet on 5th December 2018. The trial team decided to inform the participants of the results at exactly the same time as the Lancet publication, and also whether they had been allocated fluoxetine or placebo. In this report, we describe how we informed participants of the results. Design. In the 6 month and 12 month follow-up questionnaires, we invited participants to provide an email address if they wished to be informed of the results of the trial. We re-opened our trial telephone helpline between 5th December 2018 and 31st March 2019. Setting: UK Stroke servicesParticipants: 3127 participants were randomised. 2847 returned 6 month follow-up forms and 2703 returned 12 month follow-up forms; the remaining participants had died (380), withdrawn consent or did not respond.ResultsOf those returning follow-up questionnaires, a total of 1845 email addresses were provided and a further 50 people requested results to be sent by post. Results were sent to all email and postal addresses provided; 309 emails were returned unrecognised. Seventeen people replied, of whom three called the helpline and the rest responded by email. ConclusionIt is feasible to disseminate results of large trials to research participants, though only around 60% of those randomised wanted to receive the results. The system we developed was efficient and required very little resource-and could be replicated by trialists in the future. <br/
