bluuebunny/crossref_metadata_2025 huggingface dataset:
Ordem Visiocêntrica do Discurso: uma proposta de reflexão teórica sobre os letramentos de pessoas com deficiência visual
Authors: Lima Beatriz Furtado Alencar , Magalhães Izabel
Published: December 2018

RESUMO Apresenta-se uma reflexão teórica sobre os letramentos de pessoas com deficiência visual a partir da Ordem Visiocêntrica do Discurso. Discute-se essa ordem e sua implicação nas representações discursivas de uma pessoa com deficiência visual nas práticas de letramento em que se encontra situada. Para isso, adota-se o aporte teórico-metodológico da Análise de Discurso Crítica com a Linguística Sistêmico-Funcional. Detendo-se no estudo do Significado Representacional (Fairclough 2003), analisar-se-á a metafunção ideacional. As análises sugerem que a posição discursiva da participante pesquisada oscila entre uma reivindicação explícita a uma Ordem Visiocêntrica do Discurso e um ajustamento conformativo a ela. Com este estudo, almeja-se apresentar subsídios para que o discurso reivindicativo de uma pessoa com deficiência visual possa gerar desestabilizações em uma sociedade inacessível.
A licenciatura como ato performativo: reflexões sobre a formação universitária do professor de Língua Portuguesa
Authors: Santos Marcos Bispo dos
Published: December 2018

RESUMO Na política educacional brasileira, o diploma de licenciatura constitui uma titulação acadêmica de nível superior que não apenas significa a conclusão de um ciclo formal de estudos, mas, sobretudo, um ato performativo que transforma, automaticamente, o graduado em um profissional habilitado para atuar como professor de determinada disciplina na educação básica. Neste artigo, problematizou-se se a concessão do diploma de licenciado em Letras significa que todas as condições básicas necessárias para a formação profissionalizante inicial do professor de língua portuguesa foram atendidas. O quadro teórico conceitual que fundamentou a análise e discussão das práticas de formação foi apresentado através da exposição crítica das principais perspectivas de formação docente que influenciam o debate no âmbito acadêmico. A avaliação do caráter performativo da licenciatura se deu por meio da triangulação de três diferentes eixos: a legislação educacional, os objetivos do ensino na educação básica e a formação universitária do professor. Concluiu-se que a performatividade da licenciatura em Letras não é acompanhada de uma profissionalização efetiva.
Endo-β-mannanase enzyme activity in the structures of Coffea arabica L. seeds under different types of processing and drying
Authors: Ferreira Valquíria Fátima , Ricaldoni Marcela Andreotti , Rosa Sttela Dellyzete Veiga Franco da , Figueiredo Madeleine Alves de , Coelho Stefânia Vilas Boas , Fantazzini Tatiana Botelho
Published: December 2018

ABSTRACT: Enzymes play a fundamental role in degradation of molecules during seed germination, development, and deterioration. Endo-β-mannanase is one of the main enzymes responsible for hydrolysis of mannans in the endosperm during germination of coffee seeds through its action in hydrolytic degradation of cell walls and in weakening the structures of the endosperm that surround the embryo, allowing radicle emergence. The aim of this study was to determine the activity of the endo-β-mannanase enzyme in the structures of coffee seeds for the purpose of assessing the relationship between this activity and the physiological quality of the seeds under different processing and drying methods. Coffea arabica L. fruit in the cherry maturity stage was subjected to three different types of processing: natural (seeds maintained in the fruit itself), fully washed (fruit pulped mechanically and the seeds demucilaged by fermentation in water), and semi-washed or demucilaged (both fruit pulp and mucilage removed mechanically); and two methods of drying: slow drying (suspended screen) in the shade, and rapid drying in mechanical dryer at 35°C to a moisture content of 11±1%. After processing and drying, the physiological quality of the seeds was evaluated through the germination test, and endo-β-mannanase enzyme activity was quantified. Coffee seeds submitted to natural processing have lower physiological performance, as well as greater deterioration and greater activity of the endo-ß-mannanase enzyme. Removal of mucilage during fully washed and semi-washed processing of coffee seeds reduces the activity of the endo-ß-mannanase enzyme and lowers deterioration, especially after faster drying. The enzyme endo-ß-mannanase is efficient in studying of the effects of processing and drying on coffee seeds, and can be evaluated in whole seeds, endosperms or embryos.
Physicochemical and sensory characterization of gluten-free fresh pasta with addition of passion fruit peel flour
Authors: Ribeiro Taís Helena Santos , Bolanho Beatriz Cervejeira , Montanuci Flávia Daiana , Ruiz Suelen Pereira
Published: December 2018

ABSTRACT: The aim of this study was to develop a gluten-free fresh pasta formulation with addition of yellow passion fruit peel flour (PPF). A control formulation containing a mixture of rice flour and corn flour and formulations with 10 and 20% of PPF addition were produced. Sensory analysis, physicochemical characterization and technological properties were assessed. The PPF addition to gluten-free pasta increased cooking time, soluble solids loss and water absorption; it also modified the color of the formulations. The control formulation and the formulation containing 10% PPF had the best sensory parameters, leading to an acceptability index over 70%. The 10% PPF addition increased fiber (3.25%) and ashes (2.15%) content and also lowered percentage of carbohydrates (41.19%) and energy value (223.26 kcal/80g); content of proteins and lipids were similar between the formulations. Principal component analysis showed that the control formulation stands out due to its sensory properties while the formulation containing 10% PPF improved nutritional properties. Therefore, the increase in nutritional value of gluten-free fresh pasta due to the PPF addition can be considered an alternative to meet market demands for healthier food choices.
Productivity of soybean in management zones with application of different sowing densities
Authors: Camicia Rafaela Greici da Motta , Maggi Marcio Furlan , Souza Eduardo Godoy de , Bazzi Claudio Leones , Konopatzki Evandro André , Michelon Gabriela Karoline , Pinheiro José Bruno Santos
Published: December 2018

ABSTRACT: The present study aimed to assess the efficiency of sowing at variable rates for soybean cultivation in two management zones (MZs) which were defined based on stable attributes and correlated with productivity using the Fuzzy C-means clustering algorithm and the kriging interpolation.Seeding was carried out in the 2015/2016 and 2017/2018 crops with a variation of 20% of seeds and crop row spacing of 0.70m. In each MZ, 8 plots with higher and lower seed density were established. Productivity was measured using a harvest monitor connected to a harvester. Data were filtered and submitted to descriptive analysis. Productivity maps were generated using the inverse square distance interpolation for each seeding density. In the MZ with the highest productive potential (MZ 1), the productivity was 3.39 and 3.18t ha-1, and in the MZ with the lowest productive potential (MZ 2) the productivity was 3.30 and 3.11t ha-1 for the years 2016 and 2018, respectively. Interpolation estimated higher productivity with the application of 15 plants m-1. Based on the economic analysis, it is suggested in this study the application of 214,000 plants ha-1 in both MZs.
SELEÇÃO E INGRESSO DE ESTUDANTES REFUGIADOS NO ENSINO SUPERIOR BRASILEIRO: A INSERÇÃO LINGUÍSTICA COMO CONDIÇÃO DE HOSPITALIDADE
Authors: Rosa Marluza da
Published: December 2018

RESUMO Este estudo problematiza as relações de saber-poder em que se inscrevem as políticas de hospitalidade direcionadas ao acesso de estudantes refugiados às universidades públicas brasileiras nos últimos anos. A análise dedica-se à abordagem da materialidade linguística de documentos institucionais que regulamentam esse ingresso, buscando compreender, pelo diálogo entre os estudos da psicanálise, da desconstrução e do discurso, os efeitos de sentido decorrentes do discurso institucional. Os recortes discutidos apontam para o caráter normativo e prescritivo desse discurso e permitem a reflexão sobre o papel exercido pela língua portuguesa como principal condicionante que, ao mesmo tempo, possibilita e impossibilita o acesso de pessoas em situação de refúgio à universidade brasileira.
A closer look at Batillipes dicrocercus and new records of Batillipes potiguarensis (Tardigrada: Arthrotardigrada) from the Brazilian coast with comments on intra- and interspecific variability
Authors: Santos Érika , Gomes Jr Edivaldo , Rocha Clélia M. C. da , Bartels Paul J. , Fontoura Paulo
Published: December 2018

ABSTRACT Batillipes specimens collected in the Southwestern Atlantic Ocean, on the Brazilian Coast (Campos Basin and Potiguar Basin) with a bifurcated caudal appendage similar to B. dicrocercus Pollock, 1970 were assigned to B. potiguarensis Santos, da Rocha, Gomes Jr & Fontoura, 2017. This species was described as having a roundish caudal protrusion but, as shown in this study, it exhibits intraspecific variability of the morphology of the caudal apparatus. The examination of specimens of B. dicrocercus from the type locality (Massachussetts, U.S.A.) and the analysis of the original description and two subsequent emended descriptions, one from the Gulf of Mexico (U.S.A.) and another from the Mediterranean Sea, used for comparison, revealed important differences among them concerning important taxonomic characters, suggesting that what was considered a single species should now be split into three different species. Therefore, an emended diagnosis of B. potiguarensis and comments on the geographic distribution of B. dicrocercus are provided, clarifying the taxonomic status of the two species.
Diversidade de presas e predadores (Insecta) em mesohabitats de córregos de Cerrado
Authors: Giehl Nubia F. S. , Resende Bethânia O. , Roges Paulo F. S. S. , Dias-Silva Karina , Nogueira Denis S. , Cabette Helena S. R.
Published: December 2018

ABSTRACT Tropical streams feature high variety of habitats and environmental gradients, which reflect on the greater richness of aquatic insects. In this way, we evaluate if the diversity of aquatic insects of prey and predator categories is influenced by the type of substrates or by longitudinal portions in Cerrado streams. Our hypothesis is that prey and predator diversity will be determined by the type of substrate, assuming that the substrate serves as a source for foraging and / or refuge. In addition, the folhiço substrate will present greater abundance and richness due to the availability of shelter and food provided by this type of substrate. There will be differences in prey and predator composition among substrates, since some species have associations with the substrate type. The portions of the stream will have no effect on the diversity of prey and predator, since in streams of up to third order does not present considerable changes in physical characteristics. The study was carried out in nascent (1st order), intermediate (2nd) and estuary (3rd), in two streams, during dry and rainy periods. Five subsamples of sand, gravel, rocks or boulders were collected, backwaters, rapids and roots (substrate). The substrate influenced all prey and predator responses (abundance, richness and composition), but the environment (longitudinal portions) did not influence the abundance and predator composition. The influence of substrates on the diversity of prey and predators evidences the importance of riparian vegetation as a source of allochthonous material in bedside streams.
IDENTIFYING AS A DRAG QUEEN AND THE MEANING OF WORK
Authors: OLIVEIRA THAÍS Z. G. DE , GUIMARÃES LUDMILA DE V. M. , CAEIRO MARIANA DE L. , GOMES JÚNIOR ADMARDO B.
Published: December 2018

ABSTRACT Purpose: This study examines the identification processes that marked the life of a subject and their possible relations with the meaning of work as a drag queen. Originality/value: This study stands out in its use of a theoretical psychoanalytic framework to analyze the life history of a professional drag queen, aiming to shed light on the senses of work from singular aspects of the worker. Research on this subject in the field of administration is usually conducted within a functionalist paradigm. Design/methodology/approach: We examined the life story of a drag queen from Belo Horizonte, Minas Gerais. The choice to use “life story” as a data collection and analysis strategy allowed us to illuminate how the subject lives and articulates his story and the choice of work that allows an expression of his desire. Findings: Some points combine the subject’s identity traits with his work as a drag artist; the look and clothes are elements that sustain a fantasy that has found a place in society. One of the elements that gives meaning to the work is the link of some singular identity traits with the social dimension of work and the affections that sustain a form of social recognition.
Growth and reproduction in captivity unveils remarkable life-history plasticity in the smallnose fanskate, Sympterygia bonapartii (Chondrichthyes: Rajiformes)
Authors: Jañez Julieta A. , Meijide Fernando J. , Lucifora Luis O. , Abraham Carolina , Argemi Federico
Published: December 2018

ABSTRACT We analyzed growth and reproduction of captive-born smallnose fanskates Sympterygia bonapartii. Egg cases were obtained from oviposition of two females caught in the wild and held at Temaikèn Aquarium. Following hatching, growth was analyzed in 13 females and 21 males until sexual maturity. Pattern of oviposition activity and reproductive performance were evaluated in six of the captive-reared females. Four models were fitted to growth data, among which the logistic function was the one attaining the best fit. The highest growth rate for both sexes was recorded during the first year of life, whereas growth was significantly higher in females than in males during the second year. Size at first oviposition was 61.7 ± 3.5 cm TL, similar to wild specimens. However, captive-reared females reached maturity before two years of age, i.e. much earlier than wild skates, implying a significant phenotypic plasticity in this species. The similarity in size at maturity and the difference in age at maturity between captive and wild specimens indicate that there is a decoupling of both parameters mediated through growth rates. Captive-born skates reproduced successfully and yielded viable offspring, indicating that the environment at Temaikèn Aquarium is suitable for S. bonapartii to attain its full life cycle.
A new species of Copionodon representing a relictual occurrence of the Copionodontinae (Siluriformes: Trichomycteridae), with a CT-scan imaging survey of key subfamilial features
Authors: Pinna Mario de , Abrahão Vitor , Reis Vinicius , Zanata Angela
Published: December 2018

ABSTRACT A new species of the Copionodontinae genus Copionodon is described from the riacho do Mosquito, tributary to rio Santo Antônio, rio Paraguaçu basin in the Diamantina Plateau, Bahia State, northeastern Brazil. This species represents the northernmost occurrence of the subfamily yet known and is a relictual population, apparently restricted to an underground sector of the stream and its immediate downstream exit. The new species can be readily recognized by the combination of the presence of opercular odontodes, the mostly uniform coloration of the body, and the lack of a free orbital rim. Despite several troglomorphic traits shared between the new species and Glaphyropoma spinosum, the two species are not closest relatives and all such similarities are convergent adaptations to the subterranean habitat. A CT-Scan study of the holotype of the new species is presented and allows a view into the details of copionodontine anatomy with unprecedented clarity.
Plasticity in the shape and growth pattern of asteriscus otolith of black prochilodus Prochilodus nigricans (Teleostei: Characiformes: Prochilodontidae) freshwater Neotropical migratory fish
Authors: Costa Rosa Maria Rodrigues da , Fabré Nidia Noemí , Amadio Sidinéia Aparecida , Tuset Víctor Manuel
Published: December 2018

ABSTRACT Using morphometric measurements and wavelets functions, the asterisci otoliths of curimatã, Prochilodus nigricans were analysed to identify the variation in shape and growth increment of individuals from Solimões, Japurá and Negro rivers of the Amazon basin, Brazil. The morphometric and morphological analyses did not reveal evidences of population segregation among rivers, but variations were found in the estimation of otolith growth increment. Also, the otolith shape showed a high variability between individuals, identifying four morphotypes. Morphotype 1 shows a more oval shape with a posterior zone clearly rounded; Morphotype 2 shows the posterior zone rounded, but the anterior end is more elongated; Morphotype 3 shows a completely different shape, elliptic-pentagonal and Morphotype 4 shows the posterior zone rounded, but the anterior end is more elongated and it is the pattern with antirostrum and rostrum more pointed and a deep notch. Therefore, the otolith shape exhibited a phenotypic plasticity that it was not associated with the metabolism of otolith growth. Whereas the otolith shape indicated a homogeneity in the sound perception through Amazon basin, the growth rates revealed an adaptive mechanism to environmental conditions or migratory process of this species.
Do different sampling designs produce differences in the metrics of curimba, Prochilodus lineatus (Characiformes: Prochilodontidae)?
Authors: Kurchevski Gregório , Godinho Alexandre Lima
Published: December 2018

ABSTRACT Probabilistic sampling, a classical recommendation for unbiased data, has been often overlooked. Fish sampling in reservoirs, unlike most rivers, can be accomplished by a variety of probabilistic sampling designs due to few restrictions in the choice of sampling sites (SSs). We evaluated whether population metrics of Prochilodus lineatus differ between fixed SSs (do not change with each sampling trip) and variable SSs (change with each sampling trip) in the Volta Grande (VGR) and Jaguara (JR) reservoirs of the Grande River, Paraná River basin, Brazil. We used gillnets to sample fish at nine probabilistic fixed SSs and nine probabilistic variable SSs per sampling trip. We conducted 25 sampling trips in VGR and 22 in JR during 2011 to 2015, and performed 35 analyses of 8 metrics for each reservoir. We found sampling design influenced only 7% of the analyses involving three metrics, apparently caused by biased data of fixed SSs. We attribute the small percentage of analyses influenced by sampling design to the low spatial heterogeneity of the reservoirs. The choice of the most appropriate sampling design seems to depend on the type of variation (temporal or spatial) that one wishes to detect, and the availability of time and financial resources.
Fish metacommunity structure in Caño Maraca, an important nursery habitat in the Western Llanos of Venezuela
Authors: Winemiller Kirk O. , Taphorn Donald C. , Kelso-Winemiller Leslie C. , López-Delgado Edwin O. , Keppeler Friedrich W. , Montaña Carmen G.
Published: December 2018

ABSTRACT We investigated spatial and seasonal variation of fish assemblages of Caño Maraca, a creek in Venezuela’s Western Llanos, a region with strong wet-dry seasonality. Fishes were surveyed over a 19-year period at three sites along the longitudinal gradient: a headwater site with a narrow channel, a middle site with shallow channels traversing a seasonal wetland, and a lower site where the channel has higher banks. Assemblage composition and presence of species with juveniles and various life history strategies were compared during wet and dry seasons. Overall, fish species richness was lowest at the headwater site and highest at the downstream site. During the wet season, however, species richness is greatest at the middle site, a pattern associated with migration into the site for reproduction and use of the wetland as a nursery. During the dry season, species richness is greater at the downstream site where habitat quality is sufficient to provide suitable habitat for many species. Fish movements and population dynamics in Caño Maraca respond to seasonal environmental changes, and the fish metacommunity appears influenced by species sorting (habitat selection), mass effects (source-sink dynamics), patch dynamics (interspecific differences in colonization and species interaction) as well as random factors (dry-season strandings).
A new mouth brooder species of Gymnogeophagus with hypertrophied lips (Cichliformes: Cichlidae)
Authors: Turcati Andréia , Serra-Alanis Wilson Sebastián , Malabarba Luiz R.
Published: December 2018

ABSTRACT A new mouth breeder species of Gymnogeophagus is described from a tributary of the río Uruguay. It is distinguished from most species of the genus by the presence of hypertrophied lips, and from G. labiatus and G. pseudolabiatus by the color pattern. The presence of successive allopatric species of the Gymnogeophagus gymnogenys clade inhabiting the tributaries of the río Uruguay is discussed.
PHYSIOLOGICAL INDICES AND GROWTH OF ‘PALUMA’ GUAVA UNDER SALINE WATER IRRIGATION AND NITROGEN FERTIGATION
Authors: Bezerra Idelfonso Leandro , Nobre Reginaldo Gomes , Gheyi Hans Raj , Lima Geovani Soares De , Barbosa Joicy Lima
Published: December 2018

ABSTRACT The cultivation of irrigated guava in semi-arid areas highlights the need for information regarding its responses to irrigation water quality and the fertilization management that enables its exploitation. Thus, this study aimed to evaluate the effect of water salinity and nitrogen (N) doses on the growth and physiology of the guava cv. ‘Paluma’. The experiments was conducted in drainage lysimeters under field conditions in an experimental area at the Center of Sciences and Agri-Food Technology of the Federal University of Campina Grande (CCTA/UFCG), Campus II, in Pombal, PB, Brazil. The experiment had a randomized block design, and treatments consisted of a 5 x 4 factorial arrangement corresponding to five levels of irrigation water electrical conductivity, ECw (0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1), and four N doses (70, 100, 130, and 160% of the recommended N dose). The 100% dose corresponded to 541.1 mg of N dm-3 of soil. Increments in irrigation water salinity from 0.3 dS m-1 led to a reduction in stomatal conductance, internal CO2 concentration, CO2 assimilation rate, transpiration, instantaneous water use efficiency, the number of leaves and branches, stem diameter, and absolute and relative growth rates. Nitrogen doses ranging from 378.7 to 865.7 mg of N dm-3 of soil did not affect gas exchange and plant growth. Although ‘Paluma’ guava growth was affected by increases in water salinity, these plants can be irrigated using water of up to 1.42 dS m-1 with an acceptable reduction of 10% in growth variables. The interaction between irrigation water salinity and N fertilization had no significant effect on any of the variables studied.
CHLORIMURON-ETHYL IN CONVENTIONAL AND TRANSGENIC SOYBEAN CULTIVARS UNDER WATER DEFICIT STRESS
Authors: Gonçalves Clebson Gomes , Silva Junior Antonio Carlos da , Scarano Maynumi , Pereira Maria Renata Rocha , Martins Dagoberto
Published: December 2018

ABSTRACT Water deficit is a limiting factor for the soybean yield; it triggers different physiological and anatomical adaptations that have deleterious effects on the plants and can affect the selectivity of herbicides, causing production losses. In this context, the objective of this work was to evaluate the action of the chlorimuron-ethyl herbicide when applied at different stages of soybean plants, using conventional and transgenic cultivars, and different soil water potentials. A rate of 20 g ha-1 of the chlorimuron-ethyl herbicide was applied to two soybean cultivars (MG/BR46-Conquista - conventional, and BRS-Valiosa-RR - transgenic) at two phenological stages (V2 - first fully expanded trifoliate leaves, and V4 - third fully expanded trifoliate leaves), using three soil water potentials (-0.03 MPa, -0.07 MPa, and -0.5 MPa). Phytotoxicity, and plant height were evaluated at 3, 7, 14, and 21 days after the herbicide application. The shoot dry weight, root dry weight, and root system nodulation were evaluated. The soybean plants had lower phytotoxicity when subjected to application of chlorimuron-ethyl under water deficit conditions. The use of chlorimuron-ethyl reduced the growth and biomass of soybean plants and affected the plants' root system nodulation. The transgenic cultivar (BRS-Valiosa-RR) presented better performance when subjected to a moderate water deficit (-0.07 MPa), which contributes to biological nitrogen fixation.
PHOTOSYNTHETIC PARAMETERS AS PHYSIOLOGICAL INDICATORS OF TOLERANCE TO CADMIUM STRESS IN SUNFLOWER GENOTYPES
Authors: Sacramento Bárbara Lima do , Azevedo Neto André Dias de , Alves Andréia Teixeira , Moura Silvany Cardim , Ribas Rogério Ferreira
Published: December 2018

ABSTRACT The objective of the present study was to evaluate the tolerance to cadmium (Cd) of sunflower genotypes grown in greenhouse conditions, and the effectiveness of using photosynthetic parameters as physiological indicators of this tolerance. Seeds of two sunflower genotypes previously identified as tolerant (H358) and Cd-sensitive (AG960) to Cd were used. The seeds were germinated in plastic cups containing plant substrate; after 9 days, the seedlings were transplanted to plastic basins containing a nutrient solution with 0 or 10 µM of Cd, where they remained for 16 days. Samples of the plants were harvested every 5 days. The experiment was carried out in a randomized complete design, using a 4×2×2 factorial arrangement (4 days of grown in a nutrient solution with Cd, 2 sunflower genotypes, and 2 Cd levels) with four replications. Cd stress decreased CO2 net assimilation, stomatal conductance, carboxylation efficiency, photosynthetic pigment contents, potential quantum yield (Fv/Fm), and effective quantum yield of plants of the two evaluated genotypes. The decrease in photosynthetic rates of these plants was caused by both stomatal and non-stomatal limitations. Plants of the AG960 genotype showed more pronounced deleterious effects due to Cd stress than those of the H358 genotype. Thus, CO2 net assimilation rate, stomatal conductance, and chloroplast pigment content are good physiological indicators of sunflower tolerance to Cd and can at least in part, explain the greater tolerance of the H358 genotype to Cd stress when compared to the AG960 genotype.
EVALUATION OF CARNAUBA PROGENIES AND ESTIMATES OF GENETIC PARAMETERS IN THE JUVENILE PHASE
Authors: SILVA LUNARA GRAZIELLY COSTA DA , MOREIRA JEFFERSON FRANCISCO LIMA , HOLANDA HERICLES BRUNO BEZERRA , ROCHA EMANUEL LUCAS BEZERRA , DIAS POLIANA COQUEIRO
Published: December 2018

ABSTRACT Carnauba (Copernicia prunifera) is a forest species with multiple uses, and is of great economic and social importance for several communities involved in extractive agriculture in northeastern Brazil. However, there are few studies on genetic variability in this species. Thus, this work aimed to produce information about the genetic characterization of C. prunifera seeds and seedlings, using provenance and progeny evaluations. A progeny test was performed in a plant nursery, using seeds of 36 matrices sampled in the municipalities of Mossoró and Apodi (Rio Grande do Norte State), and Russas and Icapuí (Ceará State). Three groups were derived according to the spatial distance between the collected matrices. Biometric analyses of the seeds were performed, adopting a completely randomized experimental design, with four replicates of 25 seeds in each analysis. A randomized block design (five replicates and five plants per plot) was used at the seedling production phase. The data evaluated included the emergence speed index, emergence percentage, leaf size, leaf base diameter, and survival (at 30, 60, and 90 days after sowing). The restricted maximum likelihood method was used in the statistical analysis, with the aid of SELEGEN software. In order to evaluate genetic variability in the C. prunifera population samples, it was verified that the juvenile characters presented a moderate genetic control. The three groups of spatially delimited matrices presented no significant genetic differences. This information may assist in the development of forestry practice for this species.
HYDRAULIC PERFORMANCE OF DRIPPERS APPLYING SANITARY LANDFILL LEACHATE DILUTED IN WATER
Authors: Vale Hudson Salatiel Marques , Costa Danniely de Oliveira , Batista Rafael Oliveira , Coelho Daniela da Costa Leite , Feitosa Alex Pinheiro
Published: December 2018

ABSTRACT Drip irrigation with diluted sanitary landfill leachate favors the development of grasses on the landfill surface, however, the clogging of emitters of the irrigation systems is the major obstacle for this practice. The objective of this study was to select empirical models of the Christiansen's uniformity coefficient, distribution uniformity coefficient, and statistical uniformity coefficient of drip irrigation sets applying sanitary landfill leachate diluted in water as a function of time of operation, and quality of the effluent. An experiment was conducted in a completely randomized experimental design with three replicates, using a split-split plot arrangement, with operating pressures (70, 140, 210, and 280 kPa) in the plots, types of drippers (G1, 1.65 L h-1; G2, 2.0 L h-1; and G3, 4.0 L h-1) in the subplots, and operating time of the drip irrigation sets (0, 20, 40, 60, 80, 100, 120, 140, and 160 hours) in the sub-subplots. Data regarding hydraulic performance and effluent quality were acquired every 20 hours during 160 hours of operation and subjected to simple and multiple regression analyses. The G3 dripper operating at pressures of 70 and 140 kPa were the combinations that best attenuated biofilm clogging. The linear regression and square root were the models that best represented the reduction in the uniformity of the effluent application as a function of the operating time of the drip irrigation sets. The linear correlations denoted that calcium contents and total coliform population rates were the characteristics of the sanitary landfill leachate that most affected the drip clogging process.
OPTICAL MICROSCOPY AND SEM FOR IDENTIFYING CLOGGING MATERIAL IN A DRIP IRRIGATION SYSTEM
Authors: Ribeiro Maycon Diego , Azevedo Carlos Alberto de , Santos Delfran Batista dos , Szekut Flavio Daniel , Klein Márcio Roberto , Reis Claudia Facini
Published: December 2018

ABSTRACT The aim of this study was to apply optical microscopy and scanning electron microscopy (SEM) techniques to identify and assess dripper clogging of an irrigation system. Three dripper models (Taldrip, Streamline, and Tiran) underwent 1200 hours of irrigation with three types of effluents: treated domestic wastewater, water with a high calcium content, and urban water supply. Samples of the material adhered to the inside of drippers were analyzed by means of the smear method aiming at their biological identification. Other samples were taken to obtain SEM images. The presence of algae, bacteria, and biological components of biofilm was observed in drippers operating with wastewater and water with calcium, this latter in a low number. The formation of biofilm and chemical precipitates of calcium were observed in SEM images, leading to emitter clogging. Optical microscopy and SEM analyses allowed identifying the degree of fouling by biofilm and chemical precipitates in dripper clogging.
GENESIS AND CHARACTERISTICS OF SOILS OF THE SANTANAMOUNTAIN RANGE IN THE SERIDÓ REGION, RIO GRANDE DO NORTE, BRAZIL
Authors: Farias Phâmella Kalliny Pereira , Souza Carolina Malala Martins , Portela Jeane Cruz , Moura Isadora Nayara Bandeira Medeiros de , Silva Ana Carla Rodrigues da
Published: December 2018

ABSTRACT Rio Grande do Norte has mountain formations with edaphoclimatic conditions different from those predominating in the state, presenting deeper,acid soils, and milder climate. Among these formations, is the Santana mountain range, which is part of the Serra do Martins Formation. The objective of this work was to interpret the pedogenesis of the representative soils of the Santana mountain range through morphological, physical, and chemical characterizations of soil profiles and evaluate the effect of these attributes on the distribution of pedological forms along the landscape using multivariate analysis. Morphological, physical, and chemical analyses of seven soil profiles of the Santana mountain range were performed. The soils were classified according to the Brazilian Soil Classification System and the data subjected to multivariate analysis. The representative soil classes found were: LATOSSOLO AMARELO Distrófico argissólico; LATOSSOLO AMARELO Eutrófico argissólico; NEOSSOLO QUARTZARÊNICO Órtico típico; NEOSSOLO LITÓLICO Eutrófico fragmentário; NEOSSOLO REGOLÍTICO Eutrófico típico and CAMBISSOLO HÁPLICO Tb Eutrófico léptico. According to the analysis of the morphological attributes, the parent material had great influence on the formation of the different soil classes found in the Santana mountain range. The soil textural classes varied from sand to sandy clay loam. According to the analysis of the chemical attributes, the soil profiles presented acid reaction, great variation of base saturation, and low electrical conductivity. The multivariate analysis established groups of representative soil profiles of the Santana mountain range through the distinction of their physical and chemical attributes, mainly of subsurface diagnostic horizons.
Integrating remote sensing and phytosociology of the Atlantic Forest to map a small continental island in southeastern Brazil: subsidies to protect the habitat of critically endangered species
Authors: Kurtz Bruno Coutinho , Magalhães Adriana Melo , Seabra Vinícius da Silva , Richter Monika , Caris Elisa Araujo Penna
Published: December 2018

Abstract Queimada Grande (QGI) is a small, legally protected island off the southeastern coast of Brazil that harbors two endemic and critically endangered herpetofauna species: the Golden Lancehead viper (Bothrops insularis) and a hylid frog (Scinax peixotoi); its vegetation, however, has been little studied. We integrated remote sensing and phytosociology of the Atlantic Forest on QGI to characterize the habitat of those two species and support their in situ conservation. QGI retains a mosaic of Atlantic Forest, rock outcrop and anthropogenic vegetation, including invasive alien species, and bare rock surfaces. Mature Atlantic Forest, the preferential habitat of B. insularis and S. peixotoi, currently covers ~28 ha (~50%) of QGI and shows very low tree richness and an oligarchic structure. The most important species are Guapira opposita, Rudgea minor and Aspidosperma australe. Anthropogenic formations cover ~9% of the island and do not seem to have expanded in recent years. Based on local conditions, we recommend permanent monitoring of QGI and the use of local tree species in projects to restore the habitat of those two endangered species.
Resistant and refractory hypertension: two sides of the same disease?
Authors: Muxfeldt Elizabeth Silaid , Chedier Bernardo , Rodrigues Cibele Isaac Saad
Published: December 2018

Abstract Refractory hypertension (RfH) is an extreme phenotype of resistant hypertension (RH), being considered an uncontrolled blood pressure besides the use of 5 or more antihypertensive medications, including a long-acting thiazide diuretic and a mineralocorticoid antagonist. RH is common, with 10-20% of the general hypertensives, and its associated with renin angiotensin aldosterone system hyperactivity and excess fluid retention. RfH comprises 5-8% of the RH and seems to be influenced by increased sympathetic activity. RH patients are older and more obese than general hypertensives. It is strongly associated with diabetes, obstructive sleep apnea, and hyperaldosteronism status. RfH is more frequent in women, younger patients and Afro-americans compared to RFs. Both are associated with increased albuminuria, left ventricular hypertrophy, chronic kidney diseases, stroke, and cardiovascular diseases. The magnitude of the white-coat effect seems to be higher among RH patients. Intensification of diuretic therapy is indicated in RH, while in RfH, therapy failure imposes new treatment alternatives such as the use of sympatholytic therapies. In conclusion, both RH and RfH constitute challenges in clinical practice and should be addressed as distinct clinical entities by trained professionals who are capable to identify comorbidities and provide specific, diversified, and individualized treatment.
Autoria institucional no jornal escolar O Colegial - órgão dos alunos do Colégio Catarinense (1945-50)
Authors: Ruiz Tânia Maria Barroso
Published: December 2018

RESUMO Discutimos, neste trabalho, a constituição de autoria no jornal escolar O Colegial - órgão dos alunos do Colégio Catarinense. Os fundamentos da análise dialógica do discurso do Círculo de Bakhtin respaldam a discussão proposta na Linguística Aplicada. Os dados são compostos pelas seis edições anuais desse jornal, publicadas pelo Colégio Catarinense no período de 1945-50, em Florianópolis - SC, e pelo gênero discursivo expediente. A metodologia parte da análise da dimensão histórica da publicação, seguida da análise das edições de O Colegial e do respectivo gênero. A análise revelou que O Colegial não era um dos meios de expressão da voz dos estudantes, como enunciado no seu título, pois a autoria foi concebida como institucional. A posição axiológica dessa publicação visava persuadir seus interlocutores sobre a qualidade da formação educacional do Colégio Catarinense e silenciava a voz dos estudantes que fossem contrários aos valores dessa instituição educacional.
Justiçamento em rede: direitos humanos e efeito midiático
Authors: Resende Viviane de Melo , Acosta María del Pilar Tobar
Published: December 2018

RESUMO Neste artigo, discutimos uma cadeia de eventos discursivos constituída em torno de um caso de justiçamento, ocorrido na cidade do Rio de Janeiro, de que foi vítima um adolescente de 15 anos. O caso espraiou-se nas redes sociais e em veículos de mídia tradicional, chegando a ensejar outros casos semelhantes. Analisando matrizes discursivas em oposição, mapeamos cadeias dialógicas que se desdobram nas categorias de intertextualidade, intergenericidade, interdiscursividade. Retomamos a ontologia social do discurso teorizada em análise de discurso crítica, buscando focalizar a centralidade das cadeias dialógicas nesse campo, para analisar postagens no Facebook em sua relação com uma coluna de opinião no jornal televisivo do SBT. O caso de justiçamento discutido por meio dessas ações discursivas, que ensejam oposições interdiscursivas na interpretação do binômio pobreza-violência, é ilustrativo para compreender a relação entre o que é construído e repercutido nas mídias e o que ocorre na realidade das ruas.
A ironia como zona de confronto entre diferentes vozes/dizeres em comentários do Facebook
Authors: Santos André Cordeiro dos , Marques Girllaynne Gleyca Bezerra dos Santos , Rodrigues Siane Gois Cavalcanti
Published: December 2018

RESUMO Neste artigo, partindo de discussões da ironia como estratégia discursiva, propomo-nos a analisar se, e como, a ironia serve de zona de diálogo e de tensão entre diferentes vozes/dizeres, evidenciando-se como um discurso de resistência da mulher. Para tanto, partimos do entendimento de linguagem do chamado Círculo de Bakhtin e das discussões sobre ironia como estratégia discursiva, além de considerações sobre a chamada cultura do estupro e os mitos a ela relacionados. Tomamos como corpus comentários de mulheres nos quais a ironia se faz presente, surgidos a partir de postagem anônima no Facebook, em páginas do tipo spotted1. A partir da análise dos dados, foi possível perceber que, por meio da apropriação dos discursos-mitos relacionados à cultura do estupro, as mulheres instauraram em seus enunciados zonas de tensão entre dizeres, caracterizando a ironia como discurso de resistência da mulher contra discursos machistas.
A metrópole para além da nação: globalização e crise urbana
Authors: Botelho Maurilio Lima
Published: December 2018

Resumo O objetivo deste artigo, mais precisamente um ensaio, é refletir sobre o papel das grandes cidades e metrópoles numa economia global, enfatizando a contradição entre a concentração de riquezas e o desemprego crescente nessas aglomerações urbanas. Enfocamos o significado da emergência das cidades globais, cujo nível de integração social e econômica transfronteiriça, que supera as escalas tradicionais, significa uma implosão da economia nacional. Destacamos que as características das metrópoles atuais precisam ser refletidas como parte de uma crise urbana global.
Governança colaborativa e regimes urbanos: convergências inesperadas em tempos difíceis
Authors: Silva Alexsandro Ferreira Cardoso da , Clementino Maria do Livramento Miranda , Almeida Lindijane de Souza Bento
Published: December 2018

Resumo O presente artigo busca estabelecer uma linha teórica-metodológica que, ao mesmo tempo, separe e articule os elementos constituintes da chamada teoria dos regimes urbanos e do conceito de governança colaborativa. Partimos do pressuposto de que as transformações contemporâneas vivenciadas pelas cidades (maior concorrência por investimentos privados, ênfase no planejamento estratégico, mercantilização dos espaços públicos, entre outros) podem ser melhor compreendidas a partir da análise dos processos decisórios sobre as políticas urbanas, com maior presença dos negócios urbanos na política pública. Tal tarefa exige abrir um debate com a comunidade acadêmica no sentido de superar os problemas de “nacionalização” dos modelos conceituais. Para tanto, apresentamos breves considerações sobre os regimes urbanos, a governança colaborativa e as implicações teóricas envolvendo democracia e mercado.
Da “cidade integrada” à “favela como oportunidade”: empreendedorismo, política e “pacificação” no Rio de Janeiro
Authors: Rocha Lia de Mattos , Carvalho Monique Batista de
Published: December 2018

Resumo A intervenção federal na área da segurança pública no estado do Rio de Janeiro, iniciada em fevereiro de 2018, e o anúncio da extinção de parte do Programa de Polícia Pacificadora levantaram a questão sobre o que muda e o que permanece no cenário das favelas cariocas após dez anos de “pacificação”. Este artigo procura responder a tal indagação, jogando luz sobre uma dimensão desse processo: a produção de uma nova sociabilidade nesses territórios, onde o empreendedorismo se apresentou como elemento fundamental. A partir de etnografia realizada em favelas com UPP e do acompanhamento de projetos públicos e privados executados à época, analisamos o impacto dessa produção sobre o tecido associativo dessas localidades.
Growth and yield of teak stands at different spacing
Authors: Medeiros Reginaldo Antonio , Paiva Haroldo Nogueira de , D’Ávila Flávio Siqueira , Leite Helio Garcia
Published: December 2018

Abstract: The objective of this work was to evaluate the growth and yield of teak (Tectona grandis) stands at different spacing and in different soil classes. Twelve spacing were evaluated in an Inceptisol and Oxisol, in plots with an area of 1,505 or 1,548 m2, arranged in a completely randomized design with nine replicates. The teak trees were measured at 26, 42, 50, and 78 months of age. Total tree height was less affected by spacing. Mean square diameter was greater in wider spacing, whereas basal area and total volume with bark were greater in closer spacing. An increase in volume with bark per tree was observed with the increase of useful area per plant. For teak trees, growth stagnation happens earlier, the growth rate is higher in closer spacing, and the plants grow more in the Inceptisol than in the Oxisol.
Potencialidades do ensino de Biologia por Investigação
Authors: SCARPA DANIELA LOPES , CAMPOS NATÁLIA FERREIRA
Published: December 2018

RESUMO A Biologia pode ser uma das disciplinas escolares mais interessantes ou mais enfadonhas para os estudantes, dependendo do modo como ela for abordada. Articulando aspectos do consenso construtivista com os eixos da Alfabetização Científica, este artigo pretende mostrar as potencialidades do ensino por investigação para o ensino de Biologia, de forma a torná-lo mais significativo aos estudantes. Sequências didáticas baseadas no ensino por investigação podem ampliar os objetivos do ensino de Biologia na perspectiva da Alfabetização Científica, permitindo situar os estudantes no centro do processo de ensino e aprendizagem de modo que desenvolvam compreensões sobre conceitos e teorias, sobre o processo de produção de conhecimento e sobre as relações entre ciência, tecnologia, sociedade e ambiente.
Uma análise crítica do ensino de Física
Authors: MOREIRA MARCO ANTONIO
Published: December 2018

RESUMO A área de ensino de Física no Brasil tem longa tradição. A pesquisa e a pós-graduação em ensino de Física existem há décadas, assim como eventos nacionais da área. Muitos recursos instrucionais e projetos em ensino de Física já foram desenvolvidos. Revistas e publicações nessa área confirmam sua existência e consolidação. Paradoxalmente, no entanto, nos dias de hoje, o ensino de Física no Brasil está em crise, desatualizado, minimizado, desvalorizado. Este texto analisa criticamente vários aspectos desse ensino que levaram a essa crítica e apresenta alguns desafios a serem enfrentados para reverter tal situação e recuperar o ensino de Física no país. Sempre a partir da visão pessoal do autor e de sua larga experiência na área.
Ensino Médio - etapa conclusiva de uma educação em crise
Authors: MENEZES LUÍS CARLOS DE
Published: December 2018

RESUMO Associa-se o desempenho do Ensino Médio, estagnado há mais de década, ao conjunto de insuficiências da Educação de Base. Cogita-se a necessidade de se rever recente lei que altera a LDB, assim como de se reelaborar em seu conjunto a Base Nacional Comum Curricular, para poder ser sintética e efetiva referência educacional. Sugere-se melhor distribuição dos recursos fiscais e apoio logístico aos municípios para que possam de fato responder pelo início da escolarização. Propõe-se uma carreira em que professores possam progredir sem deixar de lecionar, tornando-se tutores na formação prática de futuros colegas.