123 research outputs found

    Managing Stored Data For Mobile Apps: Survey Of Apps And Case Study

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    Stored data is a critical component of any application. The stored data component of mobile applications (apps) presents special considerations. This paper examines the management of stored data for mobile apps. It identifies three types of mobile apps and describes the stored data characteristics of each type. It presents decision factors for selecting a data storage approach for a mobile app and the impact of the factors on the usability of the app. The paper surveys over 70 apps in a specific domain (that of walking the Camino de Santiago in Spain) to examine their data storage characteristics. Finally the paper presents a case study of the development of one app in this domain (eCamino). The paper concludes that in the domain examined the data storage approach selected for a mobile app depends on the characteristics of the situation in which the app will be used

    O Sistema de gestão de responsabilidade social no Instituto Politécnico de Portalegre: metodologia, programas e resultados

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    O Instituto Politécnico de Portalegre (IPP) elegeu como eixo estratégico o desenvolvimento sustentável, em que um dos pilares foi a implementação do Sistema de Gestão de Responsabilidade Social (SGRS), culminando em 2011 com a certificação pela norma de referência NP 4469-1:2008, sendo a primeira instituição de ensino superior portuguesa a consegui-lo. O método utilizado baseia-se na estrutura implementada, no desenvolvimento do SGRS e nos resultados obtidos através dos programas de responsabilidade social (RS). O Sistema assenta nas preocupações sociais definidas, nos princípios, valores, objetivos e na política da qualidade e RS do IPP, suportado por um grupo de melhoria contínua transversal a todo o instituto, com diversas áreas de atuação e responsáveis de cada um dos programas de RS. Existe uma monitorização regular, auditorias internas e externas e uma reflexão crítica anual ao SGRS. Dos resultados do SGRS, no contexto deste estudo de caso, destacam-se um incremento da satisfação das partes interessadas, o reforço do contributo dos colaboradores, uma melhoria dos níveis de integração dos estudantes, um aumento dos níveis de confiança e notoriedade. Concluindo, o IPP tem, atualmente, maior capacidade de resposta interna e externa, corresponde ao princípio de subsidiariedade e reforçou a sustentabilidade e a afirmação regional. Palavras-chave: Gestão de instituições de ensino superior; Responsabilidade Social; Certificação; Gestão da performance.info:eu-repo/semantics/acceptedVersio

    Climate change impact on flood hazard in a central Portugal alluvial plain

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    Paper Abstract This paper presents the flood hazard projections under climate change scenarios, for a period between 2021 and 2050, in the Lis river alluvial plain located at the Centre of Portugal. Furthermore, the paper also aim at understanding the hydrological processes in the study area by coupling a hydrological (HEC – HMS) and hydrodynamic model (HEC – RAS). The Lis river basin is becoming more favourable to the production of high water flows, due to the increase of impervious areas and deforestation which have reduced the time concentration on the river basin, empowering flood events with high flood peaks and water flood levels with serious consequences for the facilities (pumping stations, centre pivots) and infrastructures (irrigation networks and roads) in the alluvial plain. The methodology was developed using the daily outputs of the ALADIN and HIRHAM from the EURO-CORDEX project with a 12.5 km horizontal resolution for the RCP4.5 scenario and coupled calibrated hydrological– hydrodynamic models. The results indicated that the annual rainfall would vary for the ALADIN model between a decrease of -24% and an increase of 22% and for the HIRHAM model between a decrease of -85% and an increase of 24%. The results also projected increases in higher runoffs and water level under future climate change scenarios. The HIRHAM model was considered unsuitable for flood impact assessment

    Development of Cobrançosa "functional olive oils" by co-processing techniques

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    The aim of this work was to develop "functional olive oils" by co-processing techniques of ‘Cobrançosa’ olives with the addition of Thymus citriodorus (TL, lemon thyme) and T. mastichina L. (TM) from organic agriculture. The “functional olive oils” were prepared by: (i) thyme addition to the olives during the unit operations of crushing or malaxation, and (ii) implementation of ultrasound before the malaxation of the olive paste.This work was funded by national funds through FCT – Fundação para a Ciência e a Tecnologia, I.P., under the project UIDB/04129/2020 of LEAF-Linking Landscape, Environment, Agriculture and Food, Research Unit. (OLIVETHY exploratory project)info:eu-repo/semantics/publishedVersio

    Size at maturity and length-weight relationships of the blurred lantern shark Etmopterus bigelowi (Squaliformes: Etmopteridae) caught off southeastern Brazil

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    The blurred lantern shark Etmopterus bigelowi, a deep-water squaloid shark, is globally widespread in temperate and tropical waters, but there is little available information about its biology owing to its relative rarity of capture and taxonomic confusion with its sibling species Etmopterus pusillus. Specimens used in this study were collected from July to December 2004 as by-catch in the commercial deep-water trawl fishery targeting red shrimp Aristaeomorpha foliacea in the southwestern Atlantic. We examined 55 specimens (22 males and 33 females) ranging in total length (TL) from 31.5 to 73 cm and in total weight from 103 to 1600 g. Length-weight relationships were explored for each sex and significant differences were found in the slope coefficients of the male and female regressions. The size at maturity for each sex was evaluated fitting a logistic regression. Females matured at larger sizes than males, with estimated sizes at first maturity of 56.0 cm TL for females and 45.1 cm TL for males. The present study provides important preliminary information about E. bigelowi that can be incorporated in risk assessment and stock assessment models, essential for efficient management practices aimed at avoiding overexploitation of these vulnerable deep-sea sharks.National Council for Scientific and Technological Development (CNPq, Brazil)info:eu-repo/semantics/publishedVersio

    Talla de madurez y relación peso-talla del tiburón de profundidad Etmopterus bigelowi (Squaliformes: Etmopteridae) capturado en el sudeste de Brasil

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    The blurred lantern shark Etmopterus bigelowi, a deep-water squaloid shark, is globally widespread in temperate and tropical waters, but there is little available information about its biology owing to its relative rarity of capture and taxonomic confusion with its sibling species Etmopterus pusillus. Specimens used in this study were collected from July to December 2004 as by-catch in the commercial deepwater trawl fishery targeting red shrimp Aristaeomorpha foliacea in the southwestern Atlantic. We examined 55 specimens (22 males and 33 females) ranging in total length (TL) from 31.5 to 73 cm and in total weight from 103 to 1600 g. Length-weight relationships were explored for each sex and significant differences were found in the slope coefficients of the male and female regressions. The size at maturity for each sex was evaluated fitting a logistic regression. Females matured at larger sizes than males, with estimated sizes at first maturity of 56.0 cm TL for females and 45.1 cm TL for males. The present study provides important preliminary information about E. bigelowi that can be incorporated in risk assessment and stock assessment models, essential for efficient management practices aimed at avoiding overexploitation of these vulnerable deep-sea sharks.El tiburón de profundidad Etmopterus bigelowi se distribuye globalmente en aguas templadas y tropicales; sin embargo, hay poca información disponible sobre su biología ya que raramente se captura y existe confusión taxonómica con su especie hermana Etmopterus pusillus. Los ejemplares utilizados en este trabajo se obtuvieron de julio a diciembre de 2004 como captura incidental de la pesca comercial de arrastre de aguas profundas dirigida al camarón rojo Aristaeomorpha foliacea en el Atlántico sudoccidental. Se examinaron 55 ejemplares (22 machos y 33 hembras) de 31.5 a 73 cm de longitud total (LT) y de 103 a 1600 g de peso total. Se analizó la relación peso-talla para ambos sexos, observándose diferencias significativas en las pendientes de las regresiones, tanto de hembras como de machos. La talla de madurez para cada sexo se evaluó ajustando una regresión logística. La talla de primera madurez de las hembras (56.0 cm LT) fue mayor que la de los machos (45.1 cm LT). El presente trabajo aporta información preliminar esencial sobre E. bigelowi que puede ser incorporada en modelos de evaluación de riesgo y evaluación de la población, cruciales para prácticas de gestión dirigidas a evitar la sobreexplotación de estos vulnerables tiburones de aguas profundas.info:eu-repo/semantics/publishedVersio

    Short-term movements and habitat preferences of sailfish, Istiophorus platypterus (Istiophoridae), along the southeast coast of Brazil

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    Pop-up satellite archival tags (PSATs) were deployed on four sailfish, Istiophorus platypterus, in the coastal waters of Rio de Janeiro State in southeast Brazil during January and February of 2009 (sailfish I and II) and between November 2010 and January 2011 (sailfish III and IV). The total number of days monitored (i.e., time that the tags remained attached) were 12 (sailfish I), 51 (sailfish II), 16 (sailfish III) and 43 days (sailfish IV). The results indicate a clear pattern of vertical habitat utilization with the majority of the time spent concentrated near the uniform sea surface layer occupying a relatively narrow temperature range. Despite the clear preference for epipelagic surface waters, sailfish regularly undertook vertical excursions into deeper waters (>50 m) within three to six hour intervals. Most Probable Tracks (estimated from raw geolocations using the state-space Kalman filter model) and linear displacements suggested that tagged sailfish did not move significant distances from the tagging site. In brief, our report provides information regarding the biology of sailfish in the southwestern Atlantic and how vertical distributions during the day and night are influenced by water temperature and how this information can improve sailfish stock assessments in southwestern Atlantic Ocean.Quatro exemplares de agulhão-vela foram marcados com marcas eletrônicas monitoradas por satélite ('Pop-up satellite archival tags - PSATs') nas águas costeiras do Rio de Janeiro, sudeste do Brasil, durante janeiro e fevereiro de 2009 (agulhão-vela I e II) e entre novembro de 2010 e janeiro de 2011 (agulhão-vela III e IV). O número total de dias monitorados (ou seja, o tempo que as marcas permaneceram implantadas nos peixes) foram 12 (agulhão-vela I), 51 (agulhão-vela II), 16 (agulhão-vela III) e 43 dias (agulhão-vela IV). Os resultados demonstram um padrão claro de utilização do hábitat com a maior parte do tempo despendido predominantemente próximo à superfície do mar ocupando águas com uma faixa de temperatura restrita. Apesar da preferência por águas superficiais, os agulhões frequentemente realizaram mergulhos para águas mais profundas (ca. > 50 m) em intervalos de três a seis horas. A rota mais provável estimada a partir dos dados brutos de geolocalização e o modelo 'State-Space Kalman Filter' sugerem que os agulhões marcados não realizaram migrações significativas a partir do local de marcação. Em resumo, nossos resultados apresentam informações sobre a biologia da espécie no Atlântico Sudoeste e como as migrações verticais durante o dia e a noite são influenciadas pela temperatura da água e como essa informação pode auxiliar as avaliações de estoques de agulhão-vela no sudoeste do Atlântico.Universidade Federal de São Paulo (UNIFESP) Departamento de Ciências do MarUniversity of Florida School of Forest Resources and ConservationPelagic Research GroupInstituto de PescaUniversidade Federal Rural de Pernambuco Departamento de Pesca e AquiculturaUNIFESP, Depto. de Ciências do MarSciEL

    Catalytic performance of bulk and colloidal Co/Al layered double hydroxide with Au nanoparticles in aerobic olefin oxidation

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    A Co/Al layered double hydroxide material was synthesized in both bulk and exfoliated (colloidal) forms. Anion exchange with methionine allowed immobilization of Au nanoparticles previously prepared by a biomimetic method using an anti-oxidant tea aqueous extract to reduce the Au salt solution. The catalytic performance of bulk and exfoliated clays Au-hybrid materials was assessed in aerobic olefin epoxidation. Both catalysts were very active towards the epoxide products and with very interesting substrate conversion levels after 80 h reaction time. The Au-exfoliated material, where the nanosheets work as large ligands, yielded higher product stereoselectivity in the case of limonene epoxidation. This arises from a confined environment around the Au nanoparticles wrapped by the clay nanosheets modulating access to the catalytic active centres by reagents. Mechanistic assessment was also accomplished for styrene oxidation by DFT methodspublishe

    The composition of the lipid, protein and mineral fractions of quail breast meat obtained from wild and farmed specimens of Common quail (Coturnix coturnix) and farmed Japanese quail (Coturnix japonica domestica)

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    Research Areas: Agriculture ; Dairy & Animal ScienceThe present study was intended to answer 2 scientific hypotheses: 1) the quail species has a significant influence in quail breast meat composition; 2) the wild quail's meat presents healthier composition than their farmed counterparts. An analysis of the pectoral muscles of wild and captive common quails (Coturnix coturnix) and domestic quails (Coturnix japonica domestica) was performed. The content of fatty acids (FA), amino acids, total cholesterol, and vitamin E, some basic macro- and microminerals in the pectoral muscles of the 2 species of the genus Coturnix were analyzed. Regarding the quail species influence on meat composition, Japanese Quail (JQ) revealed better lipid composition, characterized by lower saturated FA (SFA; less 3.17 g/100 g of total fatty acids), higher polyunsaturated FA contents (PUFA; more 5.5 g/100 g of total fatty acids) and healthier polyunsaturated FA/saturated FA (P/S) and n-6/n-3 ratios and TI value (1.08, 9.54 and 0.60 vs. 0.76, 12.58, and 0.75, correspondingly). The absence of differences observed on amino acids partial sums and ratios reveals equality between species on protein nutritional quality. On the other hand, Common Quail (CQ) proved to be a better source of copper (0.181 mg/100 g of meat), iron (2.757 mg/100 g of meat), manganese (0.020 mg/100 g of meat), and zinc (0.093 mg/100 g of meat) than JQ. The comparison of farmed and wild specimens within CQ, showed that wild birds presented lower total cholesterol (less 8.32 mg/g of fresh meat) and total PUFA (less 4.26 g/100 g of total fatty acids), and higher n-3 PUFA contents (more 1.53 g/100 g of total fatty acids), which contributed to healthier P/S and n-6/n-3 ratios, but worst PI (1.60, 8.08, and 113.1 vs. 0.76, 12.58, and 100.8, respectively). The wild species revealed higher alpha-tocopherol content (2.40 vs. 1.49 mu g/g of fresh meat. Differences observed on their mineral composition counterbalance each other. Under intensive production system and similar feeding and management conditions, the CQ develops better nutritional qualities than JQ. The comparison of wild and farmed species within CQ reveals more similarities than differences. Quails meat presents good nutritional quality and introduces variability to human's diet, which is much valued by consumers.info:eu-repo/semantics/publishedVersio

    Spatio-temporal distribution and target species in a longline fishery off the southeastern coast of Brazil

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    No presente estudo, uma análise de agrupamento foi utilizada para classificar 6.486 lances feitos pela frota espinheleira sediada no Estado de São Paulo, Brasil, de 1998 até 2006, em relação à composição das espécies presentes nas capturas. Baseado nas proporções de doze espécies e três grupos de espécies, três agrupamentos foram identificados: C1: outros peixes; C2: tubarão-azul; C3: espadarte. Os resultados indicaram que ao longo do período estudado, a frota direcionou suas capturas principalmente para o tubarão-azul e para o espadarte, além de terem evidenciado que a importância do tubarão-azul nessa pescaria tem crescido progressivamente ao longo dos anos. Áreas mais afastadas da costa foram exploradas principalmente no primeiro e quarto trimestres (em especial a partir de 2001), enquanto que um esforço de pesca mais concentrado perto da quebra da plataforma continental foi observado durante o segundo e terceiro trimestres (para todo o período estudado). A frota espinheleira sediada em São Paulo mudou a estratégia de pesca para diferentes espécies-alvo, o que produziu importantes mudanças nas principais espécies capturadas por esforço de pesca (CPUE). A análise de agrupamento parece ter identificado apropriadamente essas alterações ao longo do tempo, em relação às quais não há, em geral, qualquer informação nos mapas de bordo.In the present study, a cluster analysis, in relation to the species composition of the catches, was used to classify 6,486 fishing sets by a longline fleet based in São Paulo State, Brazil, from 1998 to 2006. Based on the proportions of 12 species and three broader species groups, three clusters were identified: C1: other fishes; C2: blue shark; C3: swordfish. Results indicated that the fleet targeted mainly blue shark and swordfish and also showed that the blue shark importance in this fishery has been growing progressively trough the years. Offshore areas were exploited mainly in the first and fourth quarters (from 2001 mainly), while the fishing effort was more concentrated near the continental shelf break, during the second and third quarters (for the whole period). The longline fishery based in Sao Paulo State changed fishing strategy to target different species which produced important changes in catch-per-unit-effort (CPUE) of the main species caught. Cluster analysis seems to have appropriately identified these changes over time, which is an important information, often missing in logbooks
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