The Role of networked robotic systems to survey coastal phenomena: the Douro river plume case study

Propagation of river plumes along the coast strongly depends on several physical processes, which determine the plume fate over the shelf. The Douro is one of the largest rivers of the Iberian Peninsula, representing the most important freshwater input into the Atlantic Ocean on the northwestern Portuguese coast. Traditional methods of in situ measurements are often complicated and expensive due to the high spatial and temporal variability of its dominant drivers. By now, the general dispersion patterns of the Douro River Plume was mostly studied by numerical models and remote sensing imagery, considering the main drivers involved: river discharge, wind, and tide. From those results, the Douro River plume is classified as large-scale and surface-advected, presenting characteristics of a prototypical plume. The wind was found to play an essential role in the plume dispersion and fate. For example, southerly winds increase the velocity of the northward current, frequently merging the Douro plume with the northerly generated Minho plume. Both riverine water masses can propagate to the Rias Baixas (Spain), dramatically changing their normal circulation. By these reasons, the development of accurate and reliable plume monitoring systems is an important and challenging task. This work reports the recent use of robotic systems (AUVs and UAVs) to detect, track and survey the Douro Plume front autonomously. These systems can survey this highly dynamic environment and characterize the frontal regions of the plume regarding salinity, water temperature, turbidity, and chlorophyll concentrations under summer conditions when the plume area is small and mainly tidally driven. Results from several frontal crossings, coincident with satellite imagery acquisitions (some of which were obtained in near real-time by the new Sentinel-2 mission), demonstrated the AUVs capability to fairly detect the front structure. Cross-frontal exchanges observed in the water column by AUVs along the front emphasize the importance of new technologies use on the monitoring and detection of high spatial and temporal dynamical phenomena such as river plumes.Peer Reviewe

The interview: methodological framework in the study of "Tourism and economics: the Faro airport (1946-73)"

This methodological paper defines how to interview people regarding the decision-making process, construction and operation of Faro Airport and its role in the Portuguese tourism policy for the Algarve between 1946 and 1973. The interviewee’s age makes these interviews urgent and unique. We will hear retired workers and people who held head positions at the airport or in other relevant public or private organizations. The interviews will allow the access to data otherwise not attainable or not sufficiently evident in other sources, such as documents. The interview consists of hearing the stories of the people, as a narrative, being the interview a semi-structured, guided and unstructured mix. The use of photographs during the interview will help respondents recall events that occurred decades ago. The interviewee will be selected by snowball sampling technique. Content analysis is the method to obtain data from the transcripts of the interviews, in order to construct a coherent narrative and with the contribution of all the interviews and interviewee. As field instruments, we will use an informed consent form, photographs and the confidentiality form after the interview, which responds to the ethical requirement for confidentiality, consequences of the interview and the role of the researcher.FCT – Foundation for Science and Technology partially fund this paper, as R. N. Pereira and J. A. Silva are members of the CIEO – Research Centre for Spatial and Organizational Dynamics (Centro de Investigação sobre o Espaço e as Organizações)

APRESENTAÇÃO

É com muita satisfação que apresentamos a primeira revista eletrônica do Colegiado de Pedagogia da UFT, Campus de Arraias, a RELPE – Revista Leituras em Pedagogia e Educação. Uma Revista que manterá o registro de contribuições à formação e atuação de professores no sudeste tocantinense e no nordeste goiano. Tivemos o contratempo da greve dos técnicos e dos docentes federais, mas ainda em tempo de lançar no Portal de Periódicos da UFT, dentro do prazo da edição, julho a dezembro de 2015, a proposta de nossa RELPE, a primeira revista do curso de Pedagogia do Campus de Arraias

RELPE: RUMO À QUALIDADE DE PRODUÇÃO ENTRE OS PERIÓDICOS CIENTÍFICOS NACIONAIS E INDICADORES DE IMPACTO INTERNACIONAIS

A produção científica em periódicos no Brasil durante a primeira década dos anos 2000 cresceu em quantidade. Saltamos do 17º lugar mundial para o 13º (Folha de São Paulo, 2013)1. Mas o volume perdeu em qualidade: ficamos no 40º lugar (Só para se ter uma ideia, os EUA de 3º em 2001, caiu para 13º em 2011, segundo o mesmo jornal. O que tudo isto nos indica? A necessidade do equilíbrio entre produção quantitativa e produção de qualidade em periódicos científicos. Soma-se a isto a necessidade de maior impacto das revistas brasileiras em indexadores nacionais e internacionais

EDITORIAL

Chegamos à terceira edição da RELPE e vamos, desta forma, cumprindo o compromisso assumido deste colegiado, em Pedagogia, em apresentar leituras em pedagogia e educação que apresentem não só as produções de docentes e discentes do curso, mas também de convidados externos, como se faz desta vez, chamando colegas da Universidade Federal do Acre (UFAC), na pessoa da Prof.ª Msc. Flávia Rocha, coordenadora do curso UNIAFRO, nesta universidade

EDITORIAL

As psicólogas Thaís Miani e Dr.ª Juliene Leiva abrem o volume 3 da RELPE trazendo um texto muito pertinente ao campo da pedagogia e ao público da educação especial. Certamente, a contribuição clínica ao ambiente escolar, mereceriam, ao ver dos editores e avaliadores, mais atenção nas pesquisas e no aspecto formativo dos professores e professoras da educação infantil e anos iniciais

Recent advances on materials for lithium-ion batteries

Environmental issues related to energy consumption are mainly associated with the strong dependence on fossil fuels. To solve these issues, renewable energy sources systems have been developed as well as advanced energy storage systems. Batteries are the main storage system related to mobility, and they are applied in devices such as laptops, cell phones, and electric vehicles. Lithium-ion batteries (LIBs) are the most used battery system based on their high specific capacity, long cycle life, and no memory effects. This rapidly evolving field urges for a systematic comparative compilation of the most recent developments on battery technology in order to keep up with the growing number of materials, strategies, and battery performance data, allowing the design of future developments in the field. Thus, this review focuses on the different materials recently developed for the different battery components—anode, cathode, and separator/electrolyte—in order to further improve LIB systems. Moreover, solid polymer electrolytes (SPE) for LIBs are also highlighted. Together with the study of new advanced materials, materials modification by doping or synthesis, the combination of different materials, fillers addition, size manipulation, or the use of high ionic conductor materials are also presented as effective methods to enhance the electrochemical properties of LIBs. Finally, it is also shown that the development of advanced materials is not only focused on improving efficiency but also on the application of more environmentally friendly materials.Funding grants UID/FIS/04650/2020, UID/EEA/04436/2020 and UID/QUI/0686/2020; and project PTDC/FIS-MAC/28157/2017. Financial support grants SFRH/BD/140842/2018 (J.C.B.) and Investigator FCT Contracts CEECIND/00833/2017 (R.G.) and 2020.04028.CEECIND (C.M.C.) Financial support ELKARTEK and PIBA (PIBA-2018-06) programs

Meniscus subluxation retensioning: “autotransplant”

Knee osteoarthritis (OA) is a common condition in the older population and is characterized by several articular dysfunctions with consequent anatomic abnormalities including osteochondral degenerative changes and meniscal extrusion. Meniscal damage with extrusion is one of the strongest identified risk factors for the development and progression of knee OA and represents an important factor in the long-term health of the joint. Meniscal extrusion can alter normal knee biomechanics and dramatically inhibit meniscal function. We present a surgical technique for the treatment of early knee OA in association with an extruded meniscus to restore the meniscal anatomic position and preserve its native physiological function related to cartilage preservation. Meniscal retensioning, or a "meniscal autotransplant," can increase meniscal coverage in the compromised compartment, prevent cartilage degeneration, decrease subchondral bone exposure, and restore the compartmental space and, consequently, can relieve patients' symptoms related to early OA.The experimental work (arthroscopy laboratory) and surgical equipment were financially supported by Arthrex. Video 1 was edited by Arthrex. J.E-M. received support for travel-related expenses and laboratory equipment from Arthrex for this study. R.B. received support for travel-related expenses and laboratory equipment from Arthrex for this study. Full ICMJE author disclosure forms are available for this article online, as supplementary material

Central and peripheral oxytocin profiles during milking in ewes

Foi investigada a possível relação entre as concentrações de ocitocina no líquido céfalo-raquidiano e no soro em diferentes formas de ordenha em ovinos. Foram utilizadas dez ovelhas multíparas divididas em quatro grupos de acordo com o estímulo para ejeção do leite: ordenha exclusivamente mecânica (EM), ordenha mista mecânica e mamada com os carneiros separados das mães durante a noite e reunidos a elas pela manhã para amamentação (MMS); ordenha mista com ordenha manual (MMS); apenas amamentação natural (ES). Foram coletadas amostras de fluido cerebroespinhal e de sangue simultaneamente durante as ordenhas. A média, coeficiente de variação e valores máximos e mínimos de ocitocina do plasma foram respectivamente 257,88 ± 265,90 pg/ml, 103,11%, e 11,70 e 1000,00 pg/ml. Não foram encontradas correlações entre as concentrações centrais e plasmáticas de ocitocina (EM: -0,26; ES: -0,19; MMM: 0,05; MMS: 0,04).  Não foi evidenciada influência do tipo de estímulo para ejeção do leite nas concentrações centrais de ocitocina.  Entretanto, as concentrações plasmáticas de ocitocina foram maiores nos grupos MMM (679,80 ± 25,63) e MMS (591,82 ± 30,56) quando comparadas as dos grupos EM e ES. Alem disso, as concentrações plasmáticas de ocitocina foram maiores no grupo de OME (381,04 ± 22,09) em relação ao grupo AE (218,82 ± 27,04). Os resultados obtidos sugerem que as concentrações plasmáticas de ocitocina são mais sensíveis ao tipo de ordenha que as concentrações centrais desse hormônio. The present work investigated the possible relationship between central and peripheral oxytocin (OT) release during milking in experimental ewes. Ten multiparous ewes were divided into four groups according to milk ejection stimuli: exclusive machine milking (EM), mixed-management milking and suckling, lambs separated during the night and reunited with their mother after morning milking (MMS); mixed-management with manual milking (MMM), and exclusive suckling (ES) lambs also separated during the night. Simultaneous sampling of cerebrospinal fluid (CSF) and blood was performed during milking. The means, standard deviations, variation coefficients, and minimum and maximum CSF and plasma OT concentrations were the following, respectively: 257.88 ± 265.90 pg/ml, 103.11%, and 11.70 and 1000.00 pg/ml. No statistically significant correlations were found between OT concentrations in the CSF and plasma samples (EM: -0.26; ES: -0.19; MMM: 0.05; MMS: 0.04). The OT concentration in CSF was not influenced by milk ejection stimuli, although plasma OT was higher in the MMM (679.80 ± 25.63) and MMS (591.82 ± 30.56) groups compared with the EM and ES groups. Additionally, plasma OT concentrations were higher in the OME group (381.04 ± 22.09) compared with the AE group (218.82 ± 27.04). In conclusion, no positive correlations were found between central and peripheral OT concentrations during milking and suckling. Plasma OT concentrations differed as a function of milking management and had consequences for both milk ejection and production. Plasma but not CSF oxytocin concentrations were influenced by different milk ejection stimuli