bluuebunny/crossref_metadata_2025 huggingface dataset:
AUTISM SPECTRUM DISORDER AND POSTNATAL FACTORS: A CASE-CONTROL STUDY IN BRAZIL
Authors: Maia Fernanda Alves , Oliveira Liliane Marta Mendes , Almeida Maria Tereza Carvalho , Alves Maria Rachel , Saeger Vanessa Souza de Araújo , Silva Victor Bruno da , Oliveira Victória Spínola Duarte de , Martelli Junior Hercílio , Brito Maria Fernanda Santos Figueiredo , Silveira Marise Fagundes da
Published: July 2019

ABSTRACT Objective: To estimate the magnitude of the association between Autism Spectrum Disorder (ASD) and postnatal factors in a Brazilian population. Methods: A case-control study was performed with 253 individuals diagnosed with ASD and 886 individuals without signs of the disorder. A semi-structured questionnaire and the multiple logistic regression model were adopted in the data analysis. To estimate the magnitude of associations, the crude and adjusted Odds Ratio (OR) was used. Results: An association with the following factors was found: having been born with congenital malformation (OR 4.24; confidence interval of 95% - 95%CI 1.92-9.34), neonatal jaundice (OR 1.43; 95%CI 1.01-2.02), absence of crying at birth and seizure episode in childhood (OR 5.75; 95%CI 3.37-9.81). The magnitude of the association was higher in the children/adolescents who had two or more postnatal complications (OR 6.39; 95%CI 4.10-10.00). Conclusions: The findings of the present study suggest that malformation, neonatal jaundice, absence of crying at birth and seizure episodes in childhood are important factors to be considered when studying the etiology of ASD.
The impact of cinacalcet in the mineral metabolism markers of patients on dialysis with severe secondary hyperparathyroidism
Authors: Bucharles Sérgio Gardano Elias , Barreto Fellype Carvalho , Riella Miguel Carlos
Published: July 2019

Abstract Introduction: Treating secondary hyperparathyroidism (SHPT), a common condition associated with death in patients with chronic kidney disease, is a challenge for nephrologists. Calcimimetics have allowed the introduction of drug therapies no longer based on phosphate binders and active vitamin D. This study aimed to assess the safety and effectiveness of cinacalcet in managing chronic dialysis patients with severe SHPT. Methods: This retrospective study included 26 patients [age: 52 ± 12 years; 55% females; time on dialysis: 54 (4-236) months] on hemodialysis (N = 18) or peritoneal dialysis (N = 8) with severe SHPT (intact parathyroid hormone (iPTH) level > 600 pg/mL) and hyperphosphatemia and/or persistent hypercalcemia treated with cinacalcet. The patients were followed for 12 months. Their serum calcium (Ca), phosphorus (P), alkaline phosphatase (ALP), and iPTH levels were measured at baseline and on days 30, 60, 90, 180, and 365. Results: Patients with hyperphosphatemia (57.7%), hypercalcemia (23%), or both (19.3%) with iPTH > 600 pg/mL were prescribed cinacalcet. At the end of the study, decreases were observed in iPTH (1348 ± 422 vs. 440 ± 210 pg/mL; p < 0.001), Ca (9.5 ± 1.0 vs. 9.1 ± 0.6 mg/dl; p = 0.004), P (6.0 ± 1.3 vs. 4.9 ± 1.1 mg/dl; p < 0.001), and ALP (202 ± 135 vs. 155 ± 109 IU/L; p = 0.006) levels. Adverse events included hypocalcemia (26%) and digestive problems (23%). At the end of the study, 73% of the patients were on active vitamin D and cinacalcet. Three (11.5%) patients on peritoneal dialysis did not respond to therapy with cinacalcet, and their iPTH levels were never below 800 pg/mL. Conclusion: Cinacalcet combined with traditional therapy proved safe and effective and helped manage the mineral metabolism of patients with severe SHPT.
Caring for institutionalized elderly: representations of managers and professionals
Authors: Damaceno Daniela Garcia , Lazarini Carlos Alberto , Chirelli Mara Quaglio
Published: July 2019

ABSTRACT Objective: Analyze the social representations of professionals and managers of long-term care institution for the elderly about the care and the influence of this conception in the practice of caring. Method: This is a qualitative research carried out with twenty-nine professionals and four managers of a long-term institution for the elderly in a city in the interior of São Paulo. The data, collected in two phases through individual interviews and workshops, were analyzed through the techniques of the Collective Subject Discourse and Content Analysis in the thematic modality. Results: About their representations about care, three main ideas were identified for managers: "giving affection"; "Supply basic needs"; and "look broadened." For the professionals, the main ideas were "to help and to give affection"; "Supply needs"; and "extended care". It also identified that the representations of the elderly influence the care practice. Final considerations and implications for the practice: The maintenance of the caregiving vision of the care process and the charitable model of producing health in these institutions are reflections of the representations of the elderly. Thus, it is necessary to review the social roles of the elderly, recognizing them as protagonists of their care process aiming at a better quality of care for this population.
Development of Brazilian prototypes for child psychodynamic psychotherapy and cognitive-behavioral therapy
Authors: Fiorini Guilherme Pacheco , Ramires Vera Regina Röhnelt
Published: July 2019

Abstract Introduction This study developed Brazilian psychodynamic psychotherapy (PDT) and cognitive-behavioral therapy (CBT) prototypes for children with internalizing disorders (ID) and externalizing disorders (ED). Method Eighteen Brazilian experts in PDT (n = 9) and CBT (n = 9) rated the 100 items of the Child Psychotherapy Q-Set (CPQ) describing a hypothetical typical session based on their respective theoretical backgrounds for children with ID. They then rated the same items describing a hypothetical typical session for children with ED. A Q-type factor analysis with varimax rotation was performed. Results Expert correlations were high within each theoretical approach and each diagnostic category. The factor analysis identified three independent factors. CBT ratings concentrated on one factor, while PDT ratings loaded onto one factor describing treatment of children with ID and another factor describing treatment of children with ED. Conclusion The sole CBT prototype reflected a general conceptualization of this approach and was undifferentiated regarding treatment of children with ID and ED. The PDT prototype for children with ID provided evidence of a process focused on interpretation, while the PDT prototype for children with ED characterized a supportive process with attention to the therapeutic relationship. This infers greater variation in the PDT setting for children with different conditions.
Reflective function and identity in adolescents with clinical and nonclinical symptoms
Authors: Both Luciane Maria , Benetti Sílvia Pereira da Cruz , Goodman Geoff
Published: July 2019

Abstract Introduction Reflective function is developed in the context of secure attachment and corresponds to the ability to understand one’s mental states and those of others. Thus, identity develops, which relates to the experience of self as unique, continuous and coherent. Objective To identify reflective function and identity features in adolescents with clinical and nonclinical symptoms of mental health problems. Method Participants were 188 Brazilian high school students aged 14-17 years: 30.3% with clinical symptoms and 69.9% with nonclinical symptoms. Results Adolescents with clinical symptoms showed lower levels of reflective function and greater disintegration of identity. Conclusion Adolescence is a vulnerable time for mental health problems associated with reflective function and identity. Early identification of symptoms is a matter that needs attention to prevent future consequences.
Autopercepção das condições alimentares de idosos usuários de prótese dentária
Authors: Petry Jaqueline , Lopes Andrea Cintra , Cassol Karlla
Published: July 2019

RESUMO Objetivo Avaliar a autopercepção das condições alimentares de idosos usuários de prótese dentária, verificando sua interferência na alimentação. Método Participaram 60 idosos com idade entre 60 e 88 anos, usuários de prótese dentária total ou parcial, que frequentam assiduamente o Centro de Convivência Nair Ventorin Gurgacz – FAG em Cascavel, Paraná. Todos os indivíduos responderam a um questionário de identificação e ao protocolo Índice de Determinação da Saúde Bucal Geriátrica (GOHAI). Resultados Os idosos do estudo, maioria mulheres e usuários de prótese removível bimaxilar com mais de 30 anos, classificam sua alimentação como “boa” e não possuem preferência por consistência alimentar, embora frequentemente sintam dor ao mastigar os alimentos. A média pontuada no protocolo GOHAI foi classificada como “ruim” e o maior prejuízo dos idosos ocorreu no domínio físico, que engloba questões relacionadas à mastigação, deglutição e fala. Não foram constatadas relações entre o tempo de utilização da prótese dentária com a idade e os escores do GOHAI. Conclusão Embora os idosos raramente tenham queixa sobre o modo de se alimentar, referindo desconforto ou constrangimento, apresentam uma média abaixo do esperado no protocolo, indicando que, ainda que não relatem, muitas modificações podem estar acontecendo, gradativamente, e que soam como naturais, gerando prejuízos à qualidade de vida em alimentação do idoso.
A ponderação de regras e alguns problemas da teoria dos princípios de Robert Alexy
Authors: Sacramento Bruno
Published: July 2019

Resumo Este artigo versa sobre a distinção entre regras e princípios e analisa alguns aspectos da difundida tese da distinção qualitativa sustentada por Ronald Dworkin e Robert Alexy. A partir de um exemplo que envolve duas normas da Constituição brasileira que tratam da substituição do presidente da República, e por meio de uma abordagem analítica, adere-se a uma crítica que envolve um dos principais elementos da teoria dos princípios: a de que a ponderação é a forma de aplicação dos princípios. Defende-se que a ponderação é uma técnica de resolução de conflitos normativos que, excepcionalmente, pode ser usada também para aplicação de regras, do que decorre diversas consequências. São abordados, assim, alguns tópicos essenciais nesse contexto, como derrotabilidade normativa, caráter prima facie, subsunção e ponderação, dimensão de peso e mandamentos de otimização. No final, tendo em conta as críticas referidas, expõe-se um possível critério de distinção com base nas diferenças comportamentais e estruturais existentes entre as espécies normativas.
Effects of small hydropower plants in cascade arrangement on the discharge cyclic patterns
Authors: Paes Rafael Pedrollo de , Costa Veber Afonso Figueiredo , Fernandes Wilson dos Santos
Published: July 2019

ABSTRACT Because it is assumed that the impacts in the natural streamflow regime promoted by Small Hydropower Plants (SHP) are negligible, environmental licensing for such facilities is usually easier. Nonetheless, recent studies have shown that the operation of SHPs may disturb the natural flow conditions, mainly when the plants are placed in a cascade arrangement. In this context, the main objective of this study is investigating the alterations in flows periodic behavior in a system of six hydropower plants, being five of them SHPs. Daily discharge time series were extracted from eight streamflow gauging stations located in the Jauru River catchment, Brazil, whose period-of-record spans from May/2016 to Aug/2017. By using the wavelet transform, dominant cycles along the time series were identified and their coherence in nearby stations was compared. Among the results, one may observe that, from upstream to downstream, the high frequency cycles became more important whereas the low frequency ones have weakened. Additional analyses indicate that such alterations are not directly related to meteorological factors or to the gradual increasing in the catchment’s drainage area in the downstream direction, which suggests that the operation of SHPs may affect the streamflow natural cycles.
Scenarios from the Eta Model on quality and hydrological quantity in the Atlantic Forest, Southern Brazil
Authors: Pinheiro Adilson , Kaufmann Vander , Piazza Gustavo Antonio , Campo Claudia Guimarães Camargo
Published: July 2019

ABSTRACT This work evaluated the response of two scenarios (4.5 and 8.5) of the Eta Model on the quality (sediment - TSS, nitrate - NO3- and phosphate - PO43-) and quantity (flow - Q) of the Concordia Catchment in the Atlantic forest biome. The importance of the work lies in the comparison of both scenarios until 2099, using current agricultural practices (2016). The SWAT model normally used for hydrological purposes has been applied to evaluate water quality from the monitoring programme database (2010-2014). Q showed a non-accentuated, upward trend. Modifications in Q were transmitted to TSS and PO43-. There was no significant difference between the tested scenarios.
Using White Star (Nymphoides humboldtiana) for lake landscaping
Authors: Tedesco Carla D , Petry Claudia , Bortoluzzi Edson C , Castamann Alfredo
Published: July 2019

ABSTRACT White Star (Nymphoides humboldtiana), an aquatic-environmental native species of Brazilian flora, was selected in order to be used as ornamental plant in lakes. White Star plants were submitted to two water levels (high water level, up to 30 cm water depth and, low water level until substrate saturation) and two light intensities (full sun and 50% shading) to evaluate vegetative and flowering development. The experimental design was completely randomized, in a subplot scheme, being the water level the main plot and luminosity the subplot. Seven replicates were performed, and the sample unit consisted of one plant. Data related to number of leaves and flowers, length and diameter of petioles and leaf area were submitted to analyze of variance and regression. We observed an increase in number of leaves and flowers in the treatment of high water level in full sun, and an increase of petiole length in high water level with shading. No difference between leaf area of plants grown under full sun and with shading (p<0.05) was observed. At low water level, plants presented lower vegetative development than those grown at high water level, besides the flowering inhibition in shaded condition. These results demonstrated that White Star can be used in ornamental lakes with a water depth of at least 20 cm above the rhizome and exposed to full sun.
Search for sources of resistance to Meloidogyne enterolobii in commercial and wild tomatoes
Authors: Silva Alysson J da , Oliveira Gustavo HF de , Pastoriza Rhuan JG , Maranhão Eduardo HA , Pedrosa Elvira MR , Maranhão Sandra RVL , Boiteux Leonardo S , Pinheiro Jadir B , Carvalho Filho José Luiz S de
Published: July 2019

ABSTRACT Meloidogyne enterolobii (=M. mayaguensis) is an emerging plant pathogen capable of inducing root galls and yield reduction in a wide range of host species. This pathogen has also been reported as a global threat for tomato (Solanum lycopersicum) crop production mainly due to its ability to overcome the resistance meditated by the Mi-1 gene. Despite the potential importance of this nematode, sources of resistance to M. enterolobii are not yet available for breeding purposes. The main objective of the present work was to evaluate a large Solanum (section Lycopersicum) germplasm (comprising nine species and one botanic variety) aiming to identify useful sources of resistance to M. enterolobii. In the first screening assay, 101 accessions and the susceptible standard S. lycopersicum ‘Santa Cruz’ were inoculated and evaluated under controlled conditions. The phenotypic criteria used for evaluation were the number of root galls, gall index, number of eggs, and the reproduction factor. Plants of the 20 selected accessions were cultivated in 0.4 L pots filled with sterile soil. Inoculation procedures were identical to the first assay, but with higher inoculum pressure (3,300 eggs per plant). Three accessions with superior tolerance levels to M. enterolobii were identified viz. S. lycopersicum ‘Yoshimatsu’, S. lycopersicum ‘CNPH 1246’ and S. pimpinelifolium CGO 7650 (= CNPH 1195). These accessions were re-evaluated against a distinct M. enterolobii population as well as against two other root-knot nematode species (M. javanica and one M. incognita race 1). Under higher inoculum pressure, ‘Yoshimatsu’ was found to be resistant to M. javanica and M. incognita race 1, but susceptible to M. enterolobii from guava. The other two sources displayed susceptibility to all three nematodes. Additional germplasm screening is needed since no source of stable genetic resistance to M. enterolobii was found so far.
Growth, yield, nutrient accumulation and export and thermal sum of Italian zucchini
Authors: Purquerio Luis Felipe V , Mattar Gabriel S , Duart Adriana M , Moraes Carolina C de , Araújo Humberto S , Santos Fabrício Franco dos
Published: July 2019

ABSTRACT Studies on plant nutrition are essential for a correct fertilizer management, improving yield and quality of the product, and it also may contribute for an updating recommendation. The aim of this study was to evaluate growth, nutrient accumulation and export, thermal sum and yield of zucchini cultivar Corona F1. The experiment was carried out from August 8 to October 25, 2013, in Santo Antônio de Posse, São Paulo State. At the end of the research, 84 days after transplanting (DAT), we observed 95 cm average height with 36 leaves and 45.8 t ha-1 maximum yield. The nutrient accumulation, in g plant-1, was: N (14.2) > K (9.3) > Ca (8.0) > Mg (2.5) > S (1.2) > P (0.9) and in mg plant-1, Mn (49.3) > Fe (34.9) > Zn (19.6) > B (16.4) > Cu (2.1) and export, in kg ha-1, was N (94.9) > K (44.1) > Ca (43.0) > Mg (12.6) > S (6.3 ) > P (5.3), in g ha-1, Mn (271.0) > Fe (159.2) > Zn (105.6) > B (82.8) > Cu (11.9). The highest nutrient demand occurred between 40 and 50 DAT. Cultivar Corona F1 cycle was completed within 1.538 degree-days.
Artificially cooling of onion bulbs stored in brickwork-patterned vertical silos
Authors: Rêgo Elizanilda R , Ferreira Ana Paula S , Pereira Danilo Manoel , Pereira Ariana M , Pereira Olinto L , Finger Fernando Luiz
Published: July 2019

ABSTRACT Onion is the third most consumed vegetable worldwide, such as potatoes and tomatoes. Its conservation is influenced by temperature and humidity, and greatest losses occur at postharvest due to lack of storage infrastructure. Thus, the aim of this study was to evaluate the effect of partial cooling in vertical silo on postharvest conservation of cured onion bulbs cultivar Bola Precoce. The experimental design was completely randomized, with six replicates, arranged in split plot scheme. Plots consisted of two storage conditions: onion bulbs stored in silo 1 at room temperature (T1) and bulbs stored in silo 2 with artificial cooling (T2). Subplots were two periods of bulb removal from storage (0 and 14 days). We evaluated peel color, using chroma (C*) and internal and external luminosity (L*); relative water content (TRA) of peel and pulp of bulbs and fresh mass loss (PMF) when the experiment was installed and after 14 days for both experiments and at 21 days for T2. The average temperatures obtained in both silos were 30.4 and 16.4°C, respectively. Bulbs of T1 had 14 days shelf life whereas, bulbs of T2 had a shelf life of 21 days. Bulbs of T1 showed lighter peel on day zero. The 14-day storage made the bulbs lighter in T2. In relation to pulp color, storage period made pulp lighter in both treatments. On day 14, bulbs of T1 showed lighter pulp color comparing to bulbs of T2. Both treatments showed similar behavior on day zero for internal chroma. After 14 days storage, internal and external chroma was higher in bulbs of T2. Storage period reduced internal hue only in bulbs of T2 which showed lower internal hue in both evaluation periods. TRA was higher in T1 in both evaluation periods. PMF was higher according to storage period; however loss did not differ between treatments. Storage of onion bulbs in cooled silos increased their viability in 7 days, in relation to storage without refrigeration.
Um novo olhar sobre a vida acadêmica: estudo de caso sobre as concepções de docentes
Authors: Aguiar Joana G. , Correia Paulo Rogério Miranda
Published: July 2019

Resumo As universidades têm investido tempo e dinheiro para melhoria da qualidade do ensino de graduação. Mesmo assim, os resultados obtidos ficam aquém das expectativas. Além disso, os docentes universitários estão inseridos em um ambiente profissional complexo em que o potencial de estresse é alto. Essas preocupações, de caráter global, levaram um docente britânico a propor o modelo da fragilidade pedagógica (MFP) como forma de integrar elementos-chave que descrevem as atividades docentes e os principais motivos que levam muitos docentes (incluindo os mais experientes) a adotar uma abordagem de ensino conservadora, tradicional, segura e, possivelmente, desatualizada. O objetivo deste artigo é apresentar uma breve revisão teórica sobre o MFP e explorar sua aplicação prática no cenário educacional brasileiro. Ao utilizar a metodologia de entrevistas baseadas na coconstrução de mapas conceituais, um estudo de caso foi conduzido com sete docentes universitários. As concepções e visões de ensino dos docentes foram analisadas e comparadas entre si considerando as dimensões do MFP. Os resultados mostraram que essas são individualizadas e sensíveis aos cursos e disciplinas que lecionam, às suas formações acadêmicas, ao tempo na carreira e aos valores do instituto, departamento ou escola a que pertencem. O MFP aliado ao mapeamento conceitual permitiu um diálogo aberto, franco e focado no indivíduo. As evidências sugerem uma potencialidade de aplicação do MFP para o desenvolvimento pedagógico docente no Brasil. Algumas contribuições, limitações e desafios à disseminação do modelo também são apresentados.
Slabs strengthened for punching shear with post-installed steel and CFRP connectors
Authors: PEREIRA FILHO M. J. M. , FREITAS M. V. P. , SANTOS D. F. A. , NASCIMENTO A. J. C. , FERREIRA M. P.
Published: July 2019

Abstract Structural accidents due to punching shear failures have been reported in flat slab buildings. Design recommendations presented by codes can lead to entirely different punching shear resistance estimates for similar situations. Furthermore, design codes do not present guidelines for the design of punching shear strengthening of existing slabs. This paper uses a database with 118 experimental results to discuss the performance of theoretical estimates of punching shear resistance using ACI 318, Eurocode 2 and ABNT NBR 6118 in the case of slabs without shear reinforcement. Another database with results of 62 tests on slabs strengthened with post-installed steel and CFRP dowels is used to evaluate the performance of these strengthening techniques and to propose adaptations in codes to allow their use in punching shear strengthening situations of existing slab-column connections.
Discussion about progressive collapse of masonry buildings
Authors: FELIPE T. R. C. , HAACH V. G.
Published: July 2019

Abstract Most standards indicate the need of the evaluation of abnormal loads in the structural design, but in general, they do not provide many details about these actions and how to consider them in the design. The consequence of not considering these actions may be to the progressive collapse of the structure. This type of failure can be avoided by design of elements with sufficient robustness to control possible localized damage, ensuring adequate time for emergency measures to be taken. This work aims to discuss the progressive collapse and the behavior of masonry buildings subject to abnormal loads. An extensive literature review is carried out, highlighting the main procedures and strategies to mitigate this issue and the guidelines available in the standards. It is concluded that there is still an absence of works that deal with this kind of action in masonry buildings.
Thermo-mechanical analysis of mass concrete elements made of rubberized concrete
Authors: ALBUQUERQUE A. C. , SANTOS S. B. dos , CALMON J. L. , SILVA FILHO L. C. P. da
Published: July 2019

Abstract In this study, mass concrete samples with tire rubber chips (rubberized concrete) were evaluated in order to determine if the addition of rubber particles would enhance cracking strength due to volumetric variations of thermal origin, compared to a reference concrete, without rubber. Samples of the concretes studied were initially tested to characterize their thermal and mechanical properties. The test results were used as parameters for the analysis of the thermo-mechanic behavior of the rubberized concrete by means of a software that determined the thermal and stress response on a bi-dimensional dominion of a structural element of hypothetical geometry, typical of dam construction, applying FEM (finite element method) analysis. The results obtained indicated that, although the maximum temperatures expected are similar for both concretes (reference and rubberized), those containing tire rubber chips are subjected to lower tensile stresses, about half the stress generated in the control concrete. This behavior indicates that the addition of tire rubber chips in concrete is an efficient strategy to minimize the risk of cracking due to thermal stresses.
Thermal simulation of prisms with concrete blocks in a fire situation
Authors: RODOVALHO F. S. , CORRÊA M. R. S.
Published: July 2019

Abstract The purpose of the current study is to verify the thermal insulation capacity of concrete block masonry in a fire situation through the thermal simulation of prisms. Initially, a prism with mortar coating on the face exposed to fire was numerically simulated and compared to experimental results provided by a company in order to validate the block thermal properties. To represent air in the block cavities, fluid-structure interaction was used in ABAQUS software. The uncoated and mortar-coated prisms on both sides were analyzed in a fire situation. The thermal insulation of the uncoated prism was maintained for more than 60 minutes and with the application of coating on both faces there was an increase of 59% of this time. The thermal fields were generated, thus leading to future thermomechanical analysis.
Shear strength analysis of slabs without transverse reinforcement under concentrated loads according to ABNT NBR 6118:2014
Authors: SOUSA A. M. D. , DEBS M. K. EL
Published: July 2019

Abstract Concentrated loads in slabs without transverse reinforcement, usual in highway bridges, result in the horizontal spreading of the shear force towards the supports, situation in which not all the slab width contributes in the shear strength. Based on this, the analytical models of shear strength and punching capacity in slabs may not be suitable to deal with this loading. Since this topic is not widely discussed in the national technical literature, the paper aims to present contributions to these analyses with a focus on the accuracy level of the shear strength analytical models recommended by ABNT NBR 6118:2014. Therefore, the models available in the Brazilian code were applied to an experimental database with 118 test results and the results obtained by the Brazilian and European codes were compared. The results demonstrated that, as presented in the Brazilian code, shear strength model in one-way slabs can lead to unsafe resistance predictions while the punching capacity model can lead to very conservative predictions. From the analysis, it is concluded that considering the reduction of the shear force, in the case of loads distributed in small areas close to the support in slabs, and the use of more suitable procedures to define the effective width, it is possible to improve the level of accuracy of relations between experimental and theoretical values, but this still leads to high percentages of unsafe predictions of resistance (> 40%).
Shrinkage and porosity in concretes produced with recycled concrete aggregate and rice husk ash
Authors: CECCONELLO V. , C.SARTORI B. R. , .KULAKOWSKI M. P , KAZMIERCZAK C. S. , MANCIO M.
Published: July 2019

Abstract The admixture of recycled concrete aggregates (RCA) in new concretes is an interesting alternative in the efforts to mitigate environmental impacts. RCA may increase porosity and change properties of concretes. Rice husk ash (RHA) is employed as supplementary cementitious material may improve concrete properties. The present study investigated the shrinkage of concrete prepared with RCA and RHA, proposing a mathematical model to explain the phenomenon. Concretes were produced with 25% and 50% of coarse recycled aggregate as replacement of natural aggregate, 0%, 10%, and 20% of RHA as replacement of cement, and a water-to-binder ratio of 0.64. Water absorption and capillary and total porosities were analyzed on day 28. Shrinkage tests were conducted on days 1, 4, 7, 14, 28, 63, 91, and 112. The results point to a significant interaction between RHA and RCA.
Amblyomma scalpturatum Neumann, 1906 (Acari: Ixodidae): confirmation in Acre State, Brazil, and description of parasitism in a human
Authors: Aguirre André de Abreu Rangel , Rodrigues Vinícius da Silva , Costa Ivaneide Nunes da , Garcia Marcos Valério , Csordas Bárbara Guimarães , Andreotti Renato , Medeiros Jansen Fernandes
Published: July 2019

Abstract Amblyomma scalpturatum is a tick species that is unique to South America. It is commonly associated with the Amazon biome and has been reported in some Brazilian states. This tick species exhibits host specificity: it parasitizes tapirs and suidae. Its role in transmitting pathogens to humans is still unknown. Amblyomma scalpturatum is known to be a human-biting tick; however, there is only one report showing that humans make suitable hosts for this species. The knowledge of tick fauna is lacking in the Acre State. This study collected free-living ticks with the aim of finding new records in Acre State. Collections were carried out in Amazon forest fragments in Rio Branco municipality. An A. scalpturatum specimen was identified and submitted sequencing of the ITS-2 gene. This study presents the first molecular confirmation of A. scalpturatum collected in situ in Acre State, North Region, Brazil. This study also presents the first record of a successfully completed feeding by an A. scalpturatum nymph on a human host in the North region of Brazil. Further investigation is needed to ascertain the complete life cycle of this tick species, its seasonality in the environment, and its relationship to pathogens and competence to transmit them.
Decir (en) el exilio en el siglo XX: cuestiones terminológicas, literarias y editoriales. Aproximaciones con vistas al exilio de la Guerra Civil española
Authors: Gerhardt Federico
Published: July 2019

Resumen: El artículo aborda el exilio como fenómeno en el siglo XX, prestando atención especialmente al exilio que fue consecuencia de la Guerra Civil española y del franquismo. Con este objetivo, el trabajo hace foco específicamente en tres aspectos relacionados entre sí. En principio, reflexiona sobre la terminología utilizada para referirse al exilio y a otros fenómenos similares. Luego, vincula esa terminología con las migraciones desencadenadas por sucesos traumáticos en la primera mitad del siglo XX, y explora las características distintivas de la figura del “exiliado”. A continuación, expone un panorama de las diversas relaciones establecidas entre la literatura y el exilio, por parte de escritores, críticos e historiadores de la literatura. Para ello, el exilio es considerado como tema literario y como contexto de escritura. Finalmente, la consideración del exilio como contexto de escritura remite a la relación entre exilio e historia de la edición.
O exílio africano de Paulo Farias (África Ocidental, 1964-1969)
Authors: Reis Luiza Nascimento dos
Published: July 2019

Resumo: Paulo Fernando de Moraes Farias é historiador brasileiro com renomado trabalho desenvolvido no Centre of West African Studies, da Universidade de Birmingham. Sua longa trajetória de residência e pesquisa no Reino Unido se deu após anos decisivos, em que viveu em diferentes países da África Ocidental. Perseguido politicamente pela ditadura civil-militar brasileira instaurada em 1964, Farias deixou o Centro de Estudos Afro-orientais (Ceao) da Universidade Federal da Bahia (UFBA) e vinculou-se sucessivamente a diferentes instituições acadêmicas em Gana, no Senegal e na Nigéria para desenvolver pesquisa no emergente campo da história africana. Neste texto, amparado em três entrevistas concedidas por Farias e em diversas correspondências depositadas em acervos do Ceao e da Fundação Pierre Verger (FPV), discutimos os dilemas, as descobertas e os diálogos do jovem historiador em seu exílio africano entre 1964 e 1969.
“Reaparecer en el exilio”: experiencias de militantes argentinos sobrevivientes de desaparición forzada en Venezuela (1979-1984)
Authors: Ayala Mario
Published: July 2019

Resumen: Este artículo analiza las experiencias de exilio de un grupo de sobrevivientes del centro clandestino de detención que funcionó en la Escuela Superior de Mecánica de la Armada argentina que fueron expulsados y exiliados hacia Venezuela entre enero y julio de 1979. Se apoya en bibliografía especializada, documentos escritos y testimonios orales. Se demuestra que estos sobrevivientes políticos exiliados realizaron trayectorias grupales e individuales marcadas por la reconstrucción personal pos-traumática, la revinculación con su organización política, los problemas de la inserción en otro país, el miedo a las represalias directas e indirectas de los militares, las relaciones con otros actores del exilio y la necesidad de testimoniar sobre la experiencia.
História digital do tráfico transatlântico de escravos: uma entrevista com David Eltis
Authors: Marques Leonardo
Published: July 2019

Resumo: Entrevista realizada com o historiador David Eltis, em 14 de junho de 2018, na cidade de Niterói.
Vencidas a distância e floresta!: A Transbrasiliana e a Amazônia desenvolvimentista
Authors: Andrade Rômulo de Paula
Published: July 2019

Resumo: A construção da estrada Belém-Brasília foi a principal intervenção estatal na região amazônica durante o interregno democrático (1946-1964). Era entendida por setores da imprensa como a possibilidade de integração da região amazônica ao restante do País e à nova capital que estava sendo construída, Brasília. A estrada tiraria a Amazônia de um isolamento histórico, além de representar a vitória definitiva do homem contra a natureza, considerada uma das principais vilãs do progresso e do desenvolvimento da região. A análise da construção da Transbrasiliana também possibilita a reflexão sobre o impacto dos grandes projetos em regiões consideradas periféricas.
Long-term dynamic stability of improved loess subgrade for high-speed railways
Authors: Ma Xuening , Zhang Zheng , Zhang Peiyun , Wang Xu
Published: July 2019

Loess material requires improvement before being used as a filler for the bottom layer of the subgrade bed and substructure of a high-speed railway. Currently, cement and lime are often used to improve loess in engineering. However, whether improved loess material and the solution of key problems of the different types of improved loess can meet the long-term dynamic stability requirements of the bottom layer of a high-speed railway subgrade needs further study. Dynamic triaxial tests on cement-improved (CI) and lime-improved (LI) loess specimens were conducted to study the cyclic shear strain threshold and critical dynamic stress and to evaluate the long-term dynamic stability of CI and LI loess as fillers for the bottom layer of a subgrade bed. The results showed that the two improved loess materials can meet the long-term dynamic stability requirements when used as the bottom layer of a high-speed railway subgrade. After comprehensive consideration, 5% cement or 6% lime is recommended, with the CI soil prioritised. Compared with the critical dynamic stress method, the dynamic shear strain evaluation method is a more systematic and comprehensive method for evaluating the long-term dynamic stability of roadbeds. The research results can provide a technical reference for subgrade filler selection and subgrade design in a loess area.
Expectations-Driven Liquidity Traps: Implications for Monetary and Fiscal Policy
Authors: Nakata Taisuke , Schmidt Sebastian
Published: July 2019

We study optimal monetary and fiscal policy in a New Keynesian model where occasional declines in agents' confidence give rise to persistent liquidity trap episodes. There is no straightforward recipe for enhancing welfare in this economy. Raising the inflation target or appointing an inflation-conservative central banker mitigates the inflation shortfall away from the lower bound but exacerbates deflationary pressures at the lower bound. Using government spending as an additional policy instrument worsens allocations at and away from the lower bound. However, appointing a policymaker who is sufficiently less concerned with government spending stabilization than society eliminates expectations-driven liquidity traps.
Assessing the value of improved variable renewable energy forecasting accuracy in the South African power system
Authors: Wright J. , Landwehr G. , Chartan E.
Published: July 2019

The value associated with an improved variable renewable energy (VRE) forecast has been quantified in this research. The value of improved VRE forecasts can increase with increasing VRE penetration levels as well as the range of this value becoming wider. This value also saturates with high levels of improved VRE forecasts as there is relatively lower impact of improving VRE forecasts further. This paper discusses how the improvement of VRE forecasting could impact the South African power system and representative United States power system jurisdictions.
Wind capacity factor calculator
Authors: Kekana H. , Landwehr G.
Published: July 2019

The wind capacity factor calculator is developed to perform two main tasks: to estimate the annual energy production from the wind resource at any location in South Africa, and to compare the two datasets used in its operation with standard error analysis to determine whether both datasets are suitable for use. This paper focuses on how the software was developed and on error analysis between the CSIR PV/ wind aggregation study data and the latest Wind Atlas for South Africa data. The results will indicate the way forward after determining whether the error found between the two datasets is significant enough to replace the former with latter, going forward.
Entendiendo al consumidor japonés y coreano. Tendencias de exigentes mercados en Asia
Authors: Puerta Hernández David , Serna Montoya Natalia
Published: July 2019

Con economías que crecen y se desarrollan rápidamente, el Este de Asia atrae la mirada de países industrializados y en vía de desarrollo, así como de grandes conglomerados empresariales y de ambiciosos empresarios dispuestos a aventurarse en sus mercados con el deseo de encontrar oportunidades y ganancias para sus corporaciones. Son muchos los atractivos que ofrece la región, entre ellos economías con alto poder adquisitivo -en especial Corea del Sur y Japón-, la concentración de un gran porcentaje de la población mundial, tasas estables de crecimiento y un consumidor cada vez más especializado y occidentalizado. Independientemente del grado de desarrollo que han alcanzado, no se pueden dejar a un lado los innumerables errores que cometen las empresas al llegar a la región, por lo cual entender muy bien el desempeño de las economías, las políticas, las dinámicas y la manera como se comportan sus consumidores es vital si se desea tener éxito en estos exigentes, cambiantes y globalizados mercados. En este documento se presenta un análisis económico reciente sobre Corea del Sur y Japón, posteriormente se contextualizan algunos elementos de las tendencias y comportamientos de consumo de sus habitantes.
Knowledge-Based economy - Rising challenges of the global schoolhouse project in Singapore
Authors: Attila Csizmazia Roland
Published: July 2019

This article analyses the development of the education hub in Singapore. The world-wide migration of professionals and talented students had started many centuries ago and was further bolstered by globalization. Singapore intends to take a leading role in creating a knowledge-based economy. Consequently, the government has great ambitions to build not only research centers but also a world-class university environment, an education hub. The first part of the article seeks to describe the factors that facilitated the establishment of the education hub and the Global Schoolhouse project in Singapore. The second part identifies the challenges and problems of this project, while the third part proposes solutions to these problems. Although some of the solutions may refer to policies implemented in other countries, the article maintains a focus on the unique problems of Singapore.
Los usos del Derecho Comparado en la reforma penal. Reflexiones a propósito del Anteproyecto de Código Penal Argentino elaborado por la Comisión designada por Decreto 103/2017
Authors: Cesano José Daniel
Published: July 2019

This article aims to analyze one of the functions of Comparative Law. More specifically, its main purpose is to investigate how Comparative Law can be an auxiliary element to carry out the formulation of the legislative policy of a State. In this case from some institutions regulated by the preliminary draft reform of the Criminal Code prepared by the Commission designated by Decree103/2017.
Editorial
Authors: Nomdedeu Rull Antoni
Published: July 2019

The eleventh volume of the International Journal of Foreign Languages (RILE) presents four studies focused on different areas of teaching and learning languages, works in which, as summarized below, different types of issues are analyzed: Listening Comprehension in English as a Foreign Language. From Metacognition to the Communicative Competence; An Approach to the Professional Profile of Online Teachers of Spanish as a Foreign Language; Scientific Studies on Writing in Second Language Learning (2005-2017).
Calibrating 10-AU fluorometer to quantify extracted chl-a v1
Authors: Whitehead Shelby , R Coy Samantha , W Wilhelm Steven
Published: July 2019

This method is for use for calibrating the 10-AU flurometer using chl-a extracts. The method also provides guidelines for extracting chl-a and calculating absorbance using a spectrophotometer, making dilutions of extracts that can be used to create differetn chl-a concentrations
The correlation between transthoracic lung ultrasound score and HRCT features in patients with interstitial lung diseases v1
Authors: Adina Man Milena , Dantes Elena , Domokos Hancu Bianca , Ioana Bondor Cosmina , Ruscovan Alina , Parau Adriana , Stefania Motoc Nicoleta , Marc Monica
Published: July 2019

Chest high-resolution computed tomography (HRCT) is considered the "gold" standard radiological method in interstitial lung disease (ILD) patients. The objectives of our study were to evaluate the correlation between the transthoracic lung ultrasound (LUS) score (total LUS score and positive chest areas score) and the changes in HRCT simplified scores, in different interstitial disorders, between LUS and symptoms, LUS and pulmonary function impairment. We have evaluated 58 consecutively patients diagnosed with ILD. TotalLUS score was correlated with HRCT score(r=0.784,p<0.001) and positive chest areas (intercostal spaces with ≥3B-lines) were correlated with HRCT score (r=0.805,p<0.005). We demonstrated a very good correlation between total LUS score (number of B-lines in ten predefined scanning sites) and HRCT simplified score and also a very good correlation between the positive chest areas (like second LUS score) and HRCT score. The results sustained the diagnosis value of LUSfor the assessment of ILD compared with HRCT. The use of LUS in ILD patients can be a useful, cheap, accessible and free radiation exposure investigation and can play a complementary role in the diagnosis and monitoring of these patients.
Protocol for derivatization and determination of structural monosaccharides in crude fungal exopolysaccharide v1
Authors: Fooladi Tayebeh , Reza Soudi Mohammad , M. Heravi Majid , Karimian Sanaz
Published: July 2019

Polysaccharides are, composed of monomeric simple sugars exhibiting substantial diversity for functional groups, found being suitable for vast biological activities in different living organisms. Difficulties in isolation, purification by professional methods and using costly equipment are the multiple challenges of characterizing the nature and properties of these important components of living cells. Several methods have been applied for the qualitative analysis of the carbohydrates. However, GC and GC-MS are the most appropriate techniques ever used to analyze complex structures of polysaccharide. Notably, so far, no commercial kit has been developed and offered, particularly for derivatization of polysaccharides. This study aims to confer a modified protocol for suitable derivatization of structurally unknown polysaccharides. The fungal exopolysaccharide from Neopestalotiopsis sp. has been used as the sample in this study. The study has established the multiple manual steps of the alditol acetate derivatization. The modifications have been highlighted as follows: Trifluoroacetic acid (TFA) has been used instead of conventional trichloroacetic acid for hydrolyzing the crude exopolysaccharide. The standard sugars were treated separately, but not in the complex mixture. The simplicity of the method, using ordinary instruments and short time accomplishment of procedures, collectively makes this technique as the most applicable in a common research laboratory where no more sophisticated equipment is available.
Luis Díaz Viana, Miedos de hoy. Leyendas urbanas y otras pesadillas de la sobremodernidad, Salamanca, Editorial Amarante, 2017, 241 pp.
Authors: Asensio Llamas Susana
Published: July 2019

Reseña del libro
El agua en la región de la Chinantla, México. Estudio comparativo de una cosmovisión chinanteca a partir de su tradición oral.
Authors: Núñez Núñez Marcos
Published: July 2019

En el presente artículo se citan y comparan ocho relatos de la tradición oral chinanteca. La mitad de ellos corresponden a una compilación del antropólogo Robert J. Weitlaner, hecha a mediados del siglo XX y la otra mitad fue obtenida entre los años 2015 y 2016 en los municipios de Santa María Jacatepec y San José Chiltepec, ubicados en la misma región conocida como la Chinantla. El único requisito para hacer el estudio fue que el tópico del agua estuviera presente en los textos. Dicho ejercicio permitió observar la importancia de los recursos hídricos en la cosmovisión chinanteca, su recurrencia y persistencia en la tradición a pesar de los cambios ocasionados por las políticas de desarrollo social impulsadas por el gobierno mexicano, las cuales impactaron sobre los recursos naturales. No obstante, la comparación permitirá demostrar que desde las similitudes surgen las probables diferencias entre ambos corpus, relacionadas con el contexto histórico en que fueron compilados los relatos.
En torno a los procesos de tradicionalización en los romances de ciego. La doncella muerta por su amante / El baile
Authors: Pimentel García Miriam
Published: July 2019

En el presente artículo analiza 49 muestras orales de un romance de ciego conocido como La doncella muerta por su amante o El baile. El principal objetivo de este trabajo es reconocer los mecanismos de tradicionalización que intervienen en el proceso de difusión de un romance de cordel. Para ello, se analizamos el plano del discurso y de la intriga, así como los engarces y contaminaciones que se producen con otros romances de la tradición oral.