bluuebunny/crossref_metadata_2025 huggingface dataset:
Modos de comunicação e aprendizagem de línguas no século XXI: desafios na internacionalização
Authors: Concário Marcelo , Nóbrega Maria Helena da , Ramos Joaquim Coelho
Published: November 2020

RESUMO As questões multiculturais e multilinguísticas são elementos essenciais na comunicação cotidiana em decorrência da crescente internacionalização. Dessa forma, ao mesmo tempo em que os espaços e as possibilidades para o uso autorizado das línguas maternas e estrangeiras tornam-se objetos de pesquisa e temas relevantes para cursos de formação de professores, as convenções de uso e a diversidade reafirmam sua importância nos processos comunicativos, e as competências linguístico-comunicativas consolidam-se como ferramentas inalienáveis na formação profissional. Este artigo avalia a complexidade desses novos contextos e como a aprendizagem de línguas dialoga com novas formas de saber, saber fazer, saber ser e saber aprender. Trata-se de um estudo exploratório, baseado nas experiências dos autores com ensino, pesquisa e gestão, e decorrente das reflexões suscitadas por nossas apresentações individuais no VII Simpósio Mundial de Estudos da Língua Portuguesa, realizado em agosto de 2019 em Porto de Galinhas, Pernambuco. O objetivo é problematizar a internacionalização em três âmbitos específicos, a saber: nos modos de comunicação destacados no Quadro Comum Europeu; no ensino de língua para fins específicos e nas políticas educacionais para o século XXI. Ao final da abordagem teórica, discute-se como a gestão de projetos pedagógicos relacionados à internacionalização - português para falantes de outras línguas ou outras línguas para falantes de português - pode contribuir para promover práticas responsivas às questões profissionais e educacionais do século XXI.
IMMIGRANT NARRATIVES AND HYBRID IDENTITIES: ANALYZING AUTOBIOGRAPHICAL NARRATIVES WRITTEN BY IMMIGRANT STUDENTS IN GREECE
Authors: Archakis Argiris
Published: November 2020

ABSTRACT As one of the primary means for identity construction (see DE FINA, 2015), narrative has recently been examined in relation to immigrant and refugee movements. Having at our disposal elicited, written autobiographical narratives of immigrant students living in Greece, we investigate the identities they construct therein. Our sample consists of 118 essays collected from 8 different lyceums situated in different parts of the Peloponnese, Greece. The students who wrote the essays were bilingual immigrants of various origins (mostly from Albania). The broader theoretical framework of our study is that of Critical Discourse Analysis. One of the most important research issues within Critical Discourse Analysis concerns the investigation of the relationship between the macro-level of dominant discourses and the micro-level of the individual (in the present case, narrative) positionings towards dominant discourses (see VAN DIJK, 2008). For the analysis of the narrative positionings of the immigrant students we employ the model of three dilemmas proposed by Bamberg (2011) in combination with the concept of face threat (BROWN and LEVINSON, 1987). The analysis shows that the decision of some immigrant students to reveal their victimization, due to racist behaviors by majority people, constitutes a threat against the collective face of majority people. We support the claim that these immigrant students position themselves in a complex manner towards the national, xenophobic and homogenizing discourse by projecting themselves as victims and victimizers simultaneously, and thus constructing hybrid resistance identities.
Influência do Posicionamento da Tocha de Soldagem sobre a Geometria e Sanidade do Cordão de Solda Produzido com o Processo GMAW Convencional em Elevadas Velocidades de Soldagem
Authors: Voigt Anna Louise , Cunha Tiago Vieira da , Bohórquez Carlos Enrique Niño
Published: November 2020

Resumo: Em processos de soldagem com adição de material, como é o caso do GMAW, a obtenção de menores tempos de soldagem implica na busca por maiores taxas de deposição, visto que assim é possível aumentar as velocidades de soldagem mantendo a área transversal do cordão de solda. Como alternativa, é comum, atualmente, se considerar o emprego de processos híbridos ou modernas técnicas de soldagem derivadas de processos tradicionais. Contudo, isto implica, naturalmente, em maior aporte de investimentos, o que frequentemente não é possível. Diante disso, o presente trabalho tem por objetivo investigar os efeitos produzidos pelo posicionamento da tocha de soldagem sobre a formação de descontinuidades e geometria dos cordões de solda produzidos pelo processo GMAW convencional em elevadas velocidades de soldagem. Para tanto, foram realizados ensaios de soldagem com o processo GMAW convencional robotizado em juntas sobrepostas na posição horizontal. Foram utilizadas chapas de espessura 2,8 e 2,2 mm, sendo estas referentes a posição superior e inferior respectivamente. Empregou-se velocidades de soldagem superiores a 1 m/min e foram avaliados os aspectos morfológicos dos cordões de solda obtidos. Como resultado, foi verificado que o posicionamento da tocha de soldagem possui influência significativa na geometria do cordão e que com ângulos de ataque e de trabalho adequados é possível conferir maior robustez ao processo sem, contudo, perder em produtividade
Transcriptional responses of Rosa rugosa to salt stress and salt shock
Authors: Reis Michele Valquíria dos , Rouhana Laura Vaughn , Paiva Patrícia Duarte de Oliveira , Silva Diogo Pedrosa Correia da , Paiva Renato , Korban Schuyler
Published: November 2020

ABSTRACT Rugosa rugosa has high tolerance to various stresses; however, the molecular mechanisms of this behavior under adverse conditions are unclear. The objective of this study is to investigate expression patterns of stress-related genes in response to salinity stress. Changes in transcript levels of R. rugose, grown under different salt stress conditions (0, 25, 50, and 100 mM NaCl) over a long exposure period (30 days), have been investigated. In addition, the effects of salt shock stress on seedlings exposed to a high level (200 mM) of NaCl for a relatively short duration (3 h) have also been investigated. Expression levels of selected differentially expressed genes have been determined using relative reverse transcription polymerase chain reaction (RT-PCR). It has been observed that seedlings exposed to salt stress for a long duration exhibited no signs of stress in both leaves and roots. In addition, expression of NHX1 in R. rugosa increased in the presence of NaCl. Furthermore, transcripts of EXP4, GPP, NHX1, NAC, and DREB genes also increased under high levels of NaCl. In contrast, expression levels of MYB and TIR decreased during this salt shock treatment. Of particular interest is the increase in levels of transcripts of NHX1 in leaves of seedlings grown under both salt stress and salt shock conditions, thus suggesting that this gene plays an important role in salt stress tolerance in R. rugosa. These findings will support efforts in enhancing salt tolerance in roses, and perhaps in other members of the Rosaceae family.
Maceration extraction conditions for determining the phenolic compounds and the antioxidant activity of Catharanthus roseus (L.) G. Don
Authors: Cacique Ane Patrícia , Barbosa Érica Soares , Pinho Gevany Paulino de , Silvério Flaviano Oliveira
Published: November 2020

ABSTRACT Catharanthus roseus(L.) G. Don is a medicinal plant known for its important constituent aromatic compounds. In the literature, no detailed studies elucidating the methods of extraction of phenolic compounds for this species are available. Therefore, the present study was aimed at evaluating the maceration parameters for determining the total phenols content in C. roseus. The parameters of plant mass, extraction phase composition, homogenization type, extraction time, and temperature were evaluated in terms of improving the extraction conditions. The plant extracts were subjected to specific spectrophotometric analysis designed for each parameter, and the total phenols content was determined. After establishing the optimal conditions, the extracts were prepared from C. roseus cultivars, followed by evaluation of antioxidant activity using spectrophotometry, phenolic acid content using GC-MS, and dissimilarity using Unweighted Pair Group Method in combination with the Arithmetic Mean method. The optimal extraction conditions obtained were: 30 mg of dry plant tissue in 0.72 mL of extraction phase ethanol:water, 50:50 (v/v) at 50 °C for 1 h. The average total phenols content was 30.3 mg g-1 of gallic acid equivalents (GAE) and 20.0 mg g-1 of flavonoid quercetin equivalents (QE). The antioxidant activities determined using the DPPH, ABTS, and FRAP methods were 19.4, 11.8, and 23.3 mg g-1 of Trolox equivalent antioxidant capacity (TEAC), respectively. There was a predominance of ferulic (42%-56%) and caffeic (21%-52%) acids in the leaf extracts of C. roseus. The extraction process increased the total phenol content by 55%, from 18 to 28 mg GAE.
Mean components for choosing maize populations to extract inbred lines
Authors: Resende Ewerton Lélys , Pinho Renzo Garcia Von , Silva Eric Vinicius Vieira , Massitela João Júlio , Souza Vander Fillipe de , Souza João Lucas Dias
Published: November 2020

ABSTRACT The choice of germplasm is one of the most important phases of a genetic improvement program to the fact that it is the initial development stage of superior hybrids. Hence, the objectives of this study were to obtain the estimates of m+a and d, and inbreeding depression for grain yield and plant height traits, for cultivars lacking this information, and thus to predict the potential of maize hybrids for the extraction of lines. The F1 and F2 generations of 12 maize hybrids were tested at two sites, during the crop years of 2017-18 and 2018-19, accounting for four environments. Both the generations were evaluated in contiguous experiments in randomized blocks design with three and two repetitions during the years 2017-18 and 2018-19, respectively. The data on plant height and grain yield were collected, per plot, from both the generations, utilizing which, the m+a and d mean components were estimated. The effects of dominance had greater importance for the character grain yield. The most promising hybrids for extraction of lines were AG1051, AG8025, BG7046, DKB455, and OMEGA due to their greater estimates of m+a. The hybrids AG8025 and BG7046 were associated with high values of m+a and grain yield. For the plant height trait, there was a greater contribution of additive effects. Therefore, greater inbreeding depression was observed for the grain yield trait when compared to the height of the plant.
ROLE OF NURSES FOR CONTINUITY OF CARE AFTER HOSPITAL DISCHARGE
Authors: Guzmán Magaly Del Carmen Gallardo , Ferreira Alexandra , Andrade Selma Regina de
Published: November 2020

ABSTRACT Objective: to recognize the role of nurses to maintain continuity of care for users after hospital discharge. Method: an exploratory, descriptive study with a qualitative approach. The study was applied at hospital discharge originating from the most complex health center in Magallanes, the Hospital Clinico Magallanes, Chile. Data were collected through interviews with nurses, carried out between May and August 2018. To analyze the material, the content analysis technique was used. Results: three categories emerged, which bring together what nurses mention in their discourse: How they see the implementation of hospital nursing services, which facilitate continuity of care in the healthcare network of discharged patients (known as care networks); Who they identify in the nursing service for continuity of care after discharge (care networks), which these nursing professionals make and suggestions for their performance; and How care networks affect users in continuity of care after discharge. Conclusion: the role of nurses is key in patient discharge from hospital. With autonomy and competencies for comprehensive care, professionals facilitate the healthcare transition; manage hospital discharge, convening the institutional nursing network and the emerging networks with primary health care; aspire to develop strategies for an inter-level care network, with systematic participation.
Physical activity and quality of life of children and adolescents with cystic fibrosis: a cross-sectional study
Authors: Feiten Taiane dos Santos , Flores Josani da Silva , Rovedder Paula Maria Eidt , Dalcin Paulo de Tarso Roth , Ziegler Bruna
Published: November 2020

Abstract Introduction: Regular physical activity (PA) is part of outpatient care offered to most people with cystic fibrosis (CF). Objective: To determine the frequency of the self-reported PA and, secondarily evaluate associations between PA with clinical variables and health-related quality of life (HRQoL) in pediatric and adolescent CF subjects. Method: In this cross-sectional study, subjects between 6 and 17 years of age with a confirmed diagnosis of CF were recruited in the outpatient clinic. The subjects answered questions about the practices of PA, HRQoL questionnaire and clinical variables were collected. Subjects were classified into two groups according to weekly PA practice: PA performed ≥ 3 times/week and performed PA ≤ 2 times/week. Results: 66 subjects completed the study, 72.7% (n=48) had PA ≥ 3 times/week and 27.2% (n=18) had PA ≤ 2 times/week. Only twelve children (18,2%) reached the recommendations of the World Health Organization (WHO) to practice moderate to vigorous physical activities daily. The mean age of the subjects evaluated was 12.3 ± 3.2 years, forced expiratory volume in one second 90 ± 24.1% and forced vital capacity 95 ± 20.4%. The group that performed PA ≥ 3 times/week had a better clinical score (p=0.033), a lower number of hospitalizations in the year (p=0.002), a lower number of days hospitalized in the last year (p=0.020) and better score for the physical (p=0.003) and emotion (p=0.048) domains in HRQoL questionnaire. Conclusion: This study concluded that most subjects did not reach the WHO recommendations for the practice of PA. However, individuals who practice PA at least 3 times/week have better HRQoL, clinical score and fewer hospitalizations.
Knowledge of physiotherapists working in adult ICU on contraindications to mobilization
Authors: Lima Amina Maria Soares de , Brandão Daniella Cunha , Barros Carlos Eduardo Santos Rego , Richtrmoc Maria Karoline de França , Andrade Armèle de Fátima Dornelas de , Campos Shirley Lima
Published: November 2020

Abstract Introduction: Mobilization is an effective therapy to combat the deleterious effects of immobility, but not all patients are in a condition to be moved; thus, knowledge about contraindication criteria is fundamental. Objective: To evaluate the knowledge of physiotherapists working in adult ICUs on contraindications to the mobilization of critical patients. Method: This was a cross-sectional study in which a survey was applied to physiotherapists working in an adult ICU in the city of Recife. Results: Out of the 36 criteria presented, only five were considered contraindication criteria. Clinical parameters were those that obtained higher frequency for not being considered criteria for contraindication, nor were there observed differences in the relation between the time of working in the ICU. Conclusion: Most physiotherapists did not consider the criteria presented as contraindications to mobilization, so that professional training in mobilization practices and the creation of protocols are necessary.
Conhecimento dos consumidores e eficiência dos métodos de lavagem e desinfecção de alface (Lactuca sativa) comercializada em supermercados em uma cidade do sul do Brasil
Authors: Rossi Eliandra Mirlei , Guzela Raquel Rech , Kochhann Marília , Menezes Larissa Kochhann , Honorato Jessica Fernanda Barreto
Published: November 2020

Resumo A alface é um vegetal mundialmente consumido. Porém, quando mal higienizada pode ser a causa de doenças transmitidas por alimentos. Esse trabalho teve como objetivo verificar o conhecimento dos manipuladores referente à lavagem e desinfecção de vegetais e avaliar a eficiência de diferentes processos de lavagem e desinfecção de alface (Lactuca sativa) comercializada em supermercados. Foi aplicado um questionário aos consumidores para conhecer as práticas de lavagem e desinfecção dos vegetais. Foram adquiridas 100 amostras de alfaces em diferentes supermercados. Para avaliar a qualidade microbiológica das alfaces, foram usados: alface sem tratamento (T0); lavagem com água tratada corrente (T1); imersão em água tratada por 30 minutos (T2); imersão em hipoclorito de sódio a 200 ppm por 15 minutos (T3); e 30 minutos (T4); imersão em solução de vinagre a 2% (T5); imersão em solução de vinagre a 20% (T6); imersão em hipoclorito de sódio a 50 ppm por 30 minutos (T7); e 15 minutos (T8). Após a realização dos tratamentos, foi realizada contagem total de bactérias heterotróficas e coliformes termotolerantes. A contagem média de bactérias heterotróficas encontradas antes da higienização (T0) foi de 5,54 log UFC/g. A maioria dos consumidores afirmou que faz a lavagem das alfaces apenas com água; somente 7,50% fazem a desinfecção; e 56,3% afirmam não ter conhecimento da maneira correta da higienização dos vegetais. Todos os métodos utilizados foram capazes de reduzir as contagens de bactérias heterotróficas, sendo que as melhores reduções foram apresentadas respectivamente pelos tratamentos T4 (2,27 log UFC/g) e T3 (2,09 log UFC/g). Nenhuma das amostras apresentou contaminação por coliformes antes e depois da higienização. Esses resultados permitem concluir que métodos de lavagem e desinfecção de alfaces são necessários para reduzir a contaminação microbiana nesse alimento antes do consumo e que se torna necessário orientar os consumidores da importância dessa prática.
Traffic accidents in childhood: prevention from the nurse's perspective
Authors: Camboin Franciele Foschiera , Toso Beatriz Rosana Gonçalves de Oliveira , Caldeira Sebastião , Silva Marta Angélica Iossi
Published: November 2020

ABSTRACT Objective: to analyze the perception of nurses in primary health care on the prevention of traffic accidents with children as a component of care. Method: study of a qualitative approach, with ten nurses from a municipality in Paraná. The data collected in 2017, through semi-structured interviews, analyzed according to the modality of the inductive theme. Results: two themes were identified: “prevention actions are secondary to cure”; “Indicating the way to prevent traffic accidents: nursing care”. the reports explained that care usually occurs only after the accident, showing that preventive interventions are still insufficient. Intersectoral actions were identified as the path to care, with the school being especially recommended. Conclusion: it was identified that the care in accident prevention is performed by the nurse, expanding the possibility of interaction and communication with the individual seeking the integrality and equity of health care.
Blended learning in permanent education of nursing professionals on smoking cessation
Authors: Boni Fernanda Guarilha , Silva Lyana Duarte Borba Da , Grigolo Jamila Ivanise , Boaz Solange Klockner , Cogo Ana Luísa Petersen , Echer Isabel Cristina
Published: November 2020

ABSTRACT Objective: To develop and validate the content of an educational intervention on smoking cessation for Nursing professionals using a Blended Learning approach. Method: A development and validation study by consensus of experts of the “Smoking Cessation” course for Nursing professionals on approaches to the smoking patient carried out in 2018. For refinement and validation of the final content, a convenience sample was made up of 12 professionals with expertise in the subject natter and an 80% consensus among the participants was considered. Results: The construction of the course involved the choice of subjects, production, and content validation. As a teaching strategy, Blended Learning was used, which has an interactive online stage and a face-to-face meeting to discuss concepts and exchange experiences. Conclusion: The course using a Blended Learning method proved to be innovative, low-cost, and with great capacity for disseminating knowledge, being an important ally to permanent education in health.
Trajectories of obstetric nurses in the care of planned home childbirth: oral history
Authors: Santos Luciana Makarevicz , Mata Júnia Aparecida Laia da , Vaccari Alessandra , Sanfelice Clara Fróes de Oliveira
Published: November 2020

ABSTRACT Objective: To describe the trajectory of the insertion of obstetric nurses in the care of planned home childbirth in Rio Grande do Sul. Method: An exploratory and qualitative study, with application of thematic oral history. Thirteen obstetric nurses who worked in planned home childbirth in the state participated in the study. Data was collected from December 2019 to March 2020 through interviews and analyzed based on a thematic content analysis. Results: Two categories emerged: 1) Personal, training and professional experiences that encouraged obstetric nurses to enter planned home childbirth; and 2) The search for autonomy, freedom, protagonism and respect in the care of delivery and birth as stimuli for the insertion of obstetric nurses in the planned home childbirth. Conclusion: Personal, training and professional experiences and dissatisfaction with hospital obstetric care in the state, considered interventionist and physician-centered, encouraged obstetric nurses to enter planned home childbirth.
COMBINING ABILITY OF GRAIN SORGHUM INBRED LINES GROWN DURING OFF-SEASON
Authors: GOMES LUDMILLA RIBEIRO DA ROCHA , MENEZES CÍCERO BESERRA DE , SIMON GUSTAVO ANDRÉ , SILVA ALESSANDRO GUERRA DA , BRAZ ANTONIO JOAQUIM BRAGA PEREIRA
Published: November 2020

ABSTRACT The expansion of sorghum as a succession crop, after soybean, has demanded the development of new inbred lines by the breeding programs. The first step in the selection process consists of evaluating the performance per se of the inbred lines or of their hybrid combination. The purpose of this study was to determine the combining ability of sorghum inbred lines under different environment conditions of the crop production areas. The trials were carried out in the second season of 2017, under no-tillage system, in four environments, Rio Verde, Sete Lagoas, Teresina and Sinop. Thirty hybrids, resulting from the crosses of six fertility restoration lines (R) with five male-sterile lines (A) were evaluated. A randomized complete block design with three replicates was used in all experiments. The characteristics evaluated were flowering, plant height and grain yield. The environment significantly influenced the estimates of general and specific combining ability, which suggests that both effects, additive and dominant, are important in the control of these characters. The restoring lines GI.1 and G1.2 contributed to increasing the grain yield of their hybrids by over 650 kg.ha-1. Among the male-sterile lines, the best for grain yield were GII. 1 and GII.4 with contribution above 450 kg.ha-1 in the hybrids in which they participate. The hybrid combinations GI.5xGII.3 and GI.1xGII.2 stood out with potential to obtain high grain yield, associating positive aspects of the other characteristics.
SEED RESERVE MOBILIZATION EVALUATION FOR SELECTION OF HIGH-VIGOR COMMON BEAN CULTIVARS
Authors: PADILHA MATHEUS SANTIN , COELHO CILEIDE MARIA MEDEIROS , ANDRADE GISIANE CAMARGO DE
Published: November 2020

ABSTRACT The efficiency of seed reserve mobilization (SRM) can be affected by genotype characteristics and seed initial physiological quality, which are determinant for the choice of cultivars that present plants with high physiological performances. The objective of this study was to evaluate the SRM in different common bean cultivars with different vigor and determine the differences in this process between seed lots and cultivars. Six common bean cultivars were grown in the 2017-2018 and 2018-2019 crop seasons in Lages, Santa Catarina, Brazil. The physiological quality of the cultivars was defined by germination test, accelerated aging test, seedling length, and vigor index, establishing two vigor groups (high vigor and low vigor). SRM was evaluated based on seed and seedling dry weights, use of seed reserves, use rate of seed reserves, SRM rate to the seedling, and use efficiency of seed reserves. The high-vigor cultivars presented higher use rates of seed reserves, SRM rate to the seedling, and use efficiency of seed reserves, favoring the development of vigorous seedlings. The evaluation of SRM is an alternative to improve control of internal seed quality and selection of high-vigor common bean cultivars.
GENETIC DISSIMILARITY FOR RESISTANCE TO FOLIAR DISEASES ASSOCIATED WITH THE AGRONOMIC POTENTIAL IN MAIZE
Authors: SOUSA ANTÔNIA MARIA DE CÁSSIA BATISTA DE , CHAVAGLIA ANDRÉ CAVALET , CIVARDI EDERSON ANTÔNIO , PINTO JEFFERSON FERNANDES NAVES , REIS EDÉSIO FIALHO DOS
Published: November 2020

ABSTRACT In the present study the objective was to evaluate the genetic diversity among families of maize siblings for resistance to foliar diseases associated with their agronomic potential, identifying groups of families that can be used as sources of resistance in maize crop. The experiments were conducted in the experimental area of the Federal University of Goiás at the Jataí Regional Unit, in Jataí, GO, Brazil, constituted by 182 half-sibling families of maize and two commercial hybrids as a control. The 182 half-sibling families were divided into three experiments with 60, 60 and 62 families, respectively. The experimental design used was randomized blocks, with three replicates. Eight quantitative characters and 4 foliar diseases were evaluated. The multivariate analysis technique was used to measure the genetic divergence for the four foliar diseases represented by the generalized Mahalanobis distance. Based on the genetic dissimilarity matrix, the dendrogram was constructed using the clustering method of the average distance between groups (Unweighted Pair Group Method with Arithmetic Mean - UPGMA). After defining the groups, univariate analysis of variance was performed in order to evaluate the effects of the groups on each character studied. Comparisons were made between the means of the groups, using the Tukey test (p <0.05). White spot (32.53%) was the disease that most contributed to the total divergence between families. Group 10 stood out among the others as a source of resistance to the disease complex associated with yield. The genetic variability of families for foliar disease complex reveals potential for future studies facing pyramiding genes.
VALUATION OF THE NUTRITIONAL MATRIX BY PHYTASE AND SOY GUM IN THE DIET FORMULATION FOR BROILER CHICKENS
Authors: ROSTICHELLI LUIZ GUSTAVO NASCIMENTO , LAURENTIZ ANTONIO CARLOS DE , FILARDI ROSEMEIRE DA SILVA , SOUZA ROSEMARY PEREIRA DE PEDRO , CARLIS MATHEUS SOUSA DE PAULA
Published: November 2020

ABSTRACT The study was carried out with the objective of evaluating whether the valorisation of the nutritional matrix by the addition of the enzyme phytase and soy gum, in isolation or in association in the formulation of broiler chicken diets compromises the performance in the phase of 7 to 42 days of age and can be economically viable. Seven hundred 7-day-old male Cobb 500 broiler chicks were distributed in a completely randomised design consisting of seven treatments and five replications of 20 birds. The treatments consisted of a standard diet and six other diets whose matrix values of phytase and gum were valued, either alone or in combination, in the formulation of the diets. The individual valuation of the nutritional matrix of the phytase and soy gum in the formulation of feed for broiler chickens did not compromise the zootechnical performance of the chickens; however, only the valuation with phytase proved economically viable, since the inclusion of the gum and its valuation did not contribute to a reduction in the production cost or gross margin compared to a standard diet.
PLOT SIZE, NUMBER OF TREATMENTS AND REPLICATES AND EXPERIMENTAL PRECISION IN BUCKWHEAT
Authors: FILHO ALBERTO CARGNELUTTI , NEU ISMAEL MARIO MÁRCIO , SOUZA JÉSSICA MARONEZ DE , PEZZINI RAFAEL VIEIRA , DUMKE GABRIEL ELIAS , SOMAVILLA FELIPE MANFIO
Published: November 2020

ABSTRACT The objective of this work was to determine the optimal plot size to evaluate the fresh weight in buckwheat (Fagopyrum esculentum Moench) of the IPR91-Baili and IPR92-Altar cultivars, in scenarios formed by combinations of numbers of treatments, numbers of replicates, and levels of experimental precision. Sixteen uniformity trials (blank experiments) were carried out, eight with cultivar IPR91-Baili and eight with cultivar IPR92-Altar. The trials were performed in eight sowing dates. The fresh weight was evaluated in 576 basic experimental units (BEU) of 1 m x 1 m (36 BEU per trial). The soil heterogeneity index of Smith (1938) was estimated. The plot size was determined by the method of Hatheway (1961) in scenarios formed by combinations of i treatments (i = 5, 10, 15, and 20), r replicates (r = 3, 4, 5, 6, 7, and 8), and d precision levels (d = 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, and 20%). To evaluate the fresh weight in buckwheat of the IPR91-Baili and IPR92-Altar cultivars, in experiments under completely randomized and randomized block designs, with 5 to 20 treatments and eight replicates, plots of 8 m3of useful area are sufficient to identify significant differences between treatments, at 5% probability level, of 15% of the overall mean of the experiment.
Flora of Reserva Ducke, Amazonas, Brazil: Linaceae
Authors: Dávila Nállarett , Amorim Bruno Sampaio , Fantin Cleiton , Cabral Fernanda Nunes
Published: November 2020

Abstract This study defines and characterizes the species of Linaceae occurring in Reserva Ducke. We analyzed material collected mainly during the Project Flora of Reserva Ducke. Two genera, each with one species, are recorded: Hebepetalum humiriifolium and Roucheria columbiana. We present species descriptions, taxonomic comments, illustrations, habitat information, geographic distribution and an identification key to species of Linaceae.
Uma nova ocorrência de Bulbophyllum (Orchidaceae, Epidendroideae) para o estado de Goiás, Brasil
Authors: Santos Igor Soares dos , Alonso Alexandre Antônio , Silva Marcos José da
Published: November 2020

Resumo Estudos sobre a família Orchidaceae no Parque Nacional da Chapada dos Veadeiros, revelou uma nova ocorrência para a flora do estado de Goiás. Bulbophyllum adiamantinum até então considerada endêmica do estado de Minas Gerais, é aqui descrita, ilustrada, comentada quanto a sua distribuição, relações morfológicas e épocas de floração e frutificação. Adicionalmente, são fornecidos um mapa com a distribuição da espécie, seu status de conservação, além de imagens e notas sobre a anatomia de seu sistema vegetativo e de B. insectiferum, com a qual pode ser confundida. Anatomicamente, ambas as espécies se diferenciam principalmente pela presença ou ausência de corpos silicosos no sistema vegetativo, de idioblastos traqueoidais no mesofilo, pelo arranjo das fibras e aspecto do lume nas células da exoderme, endoderme, periciclo e medula nas raízes. Os caracteres que mostraram-se variáveis foram o número de feixes vasculares, o formato das células da epiderme e a espessura da cutícula das espécies estudadas.
O gênero Zornia (Fabaceae - Papilionoideae) no estado da Paraíba, Brasil
Authors: Silva Raquel Pereira da , Queiroz Rubens Teixeira de , Fortuna-Perez Ana Paula
Published: November 2020

Resumo O gênero Zornia com ca. 80 espécies é constituído de dois subgêneros, Myriadena e Zornia, sendo o último com três seções (Zornia, Isophylla e Anisophylla) e apresenta distribuição pantropical. Morfologicamente é caracterizado principalmente pelas flores dispostas em inflorescências espiciformes com bractéolas peltadas aos pares, encobrindo o cálice, tanto na flor e muitas vezes no fruto. O presente estudo teve como objetivo estudar as espécies de Zornia que ocorrem no estado da Paraíba. Para tanto foram realizados estudos morfológicos com base em materiais coletados e principalmente em coleções depositadas nos herbários EAN, JPB, IPA e PEUFR. A identificação dos materiais foi realizada com o auxílio da bibliografia especializada, complementada pela análise de imagens digitais dos tipos. Para cada uma das espécies foi elaborada uma descrição, comentário taxonômico e morfológico, adicionalmente uma chave de identificação foi feita para todo o gênero. Neste estudo foram registradas sete espécies: Zornia brasiliensis, Z. latifolia, Z. leptophylla, Z. guanipensis, Z. myriadena, Z. reticulata e Z. sericea. As espécies Zornia guanipensis, Z. myriadena, e Z. sericea constituem novos registros de ocorrências para o estado. As espécies Zornia myriadena, Z. reticulata, Z. brasiliensis e Z. leptophylla têm distribuição exclusiva na Caatinga. Já Z. guanipensis ocorre na Mata Atlântica, em restinga, enquanto que Z. sericea e Z. latifolia possuem distribuição em ambos os domínios fitogeográficos.
The ghost of climatic change in the geographic distribution of Tillandsia aeranthos (Bromeliaceae)
Authors: Guerrero Elián Leandro
Published: November 2020

Abstract The geographic distribution of Tillandsia aeranthos is updated with new records. Its southern limit is extended 200 kilometers in a zone previously studied by many botanists and naturalists, but also in poorly explored areas. For this reason, the possibility that the change in distribution is recent is postulated and discussed. The coincidence of this change with the southward shift in the isohyets and the decrease of winter frost frequency are highlighted as a possible cause of the advance to the south. In addition, two petal color variants of this species are first mentioned for Argentina. The new findings display that it is necessary to further explore some dry forests of eastern Buenos Aires and study the possible consequences of the climatic change in the biota of South America.
Chave interativa de espécies arbóreas em florestas estacionais do sudoeste da Bahia
Authors: Plazas Inkamauta Valeda Cerda , Paula Alessandro de
Published: November 2020

Resumo As florestas estacionais são as fitofisionomias do bioma Mata Atlântica mais ameaçadas, principalmente, pela pressão do agronegócio e pelo processo de urbanização. Diante desse cenário, o conhecimento de sua estrutura e, principalmente, de sua composição florística, são fundamentais para os processos de conservação e preservação dos recursos naturais. No intuito de auxiliar o processo de identificação de espécies, este trabalho teve como objetivo confeccionar uma chave interativa de espécies arbóreas localizadas em florestas estacionais do sudoeste da Bahia. Na confecção da chave foram excluídas as espécies que apresentaram densidade menor ou igual a um indivíduo por hectare nos respectivos levantamentos. Para elaboração da chave dendrológica foi necessário um levantamento de caracteres morfológicos de folhas e ramos, levando em consideração suas variações, assim como sua presença ou ausência. Os dados obtidos foram lançados na plataforma “on line” do Xper3. A consistência da base de dados foi analisada por meio da ferramenta “checkbase”. Foram utilizadas 177 espécies, sendo 62 da família Leguminosae. A chave está disponível na plataforma do Xper3 com acesso livre, mostrando-se eficiente e de uso simples. A chave contempla espécies frequentes em diversos levantamentos realizados na Bahia e, ainda, pode ser utilizada para florestas estacionais em outros estados.
Flora do Brasil: Elaeocarpaceae
Authors: Sampaio Daniela
Published: November 2020

Resumo O presente trabalho teve por objetivo geral contribuir com a Flora do Brasil 2020, uma das metas estabelecidas pela Conferência das Partes dos Países Signatários da Convenção sobre a Diversidade Biológica. O projeto é coordenado pelo Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, sob os auspícios do Ministério do Meio Ambiente, envolvendo instituições nacionais e estrangeiras de pesquisa. Neste trabalho, foram levantadas as espécies de Elaeocarpaceae que ocorrem no Brasil e elaborada uma flora para a família, com chave de identificação e descrições para gêneros e espécies, comentários taxonômicos e distribuição geográfica de cada táxon. Os principais herbários nacionais foram visitados pessoalmente ou tiveram suas coleções da família solicitadas por empréstimo, e os tipos nomenclaturais depositados em herbários nacionais e estrangeiros foram analisados. Foram reconhecidos dois gêneros, Crinodendron e Sloanea, com uma e 43 espécies, respectivamente. Com isso, foram reconhecidos 44 nomes válidos, 57 sinônimos, sete lectótipos, 14 sinônimos novos e uma nova espécie.
Flora do Rio de Janeiro: Cactaceae
Authors: Freitas Maria de Fátima , Calvente Alice , Gonzaga Diego Rafael
Published: November 2020

Resumo Este trabalho apresenta as espécies da família Cactaceae ocorrentes no estado do Rio de Janeiro, distribuídas em ambientes de restingas e floresta atlântica. São descritos e ilustrados 13 gêneros, 50 espécies e 8 subespécies, sendo o gênero Rhipsalis o mais diverso em número de espécies e distribuído na maioria das regiões do estado. São apresentados chaves de identificação, descrições, ilustrações e dados sobre o habitat e distribuição geográfica das espécies distribuídas nos seguintes gêneros: Brasiliopuntia (1 sp.), Cereus (1 sp., 2 subsp.), Coleocephalocereus (1 sp.), Epiphyllum (1 sp.), Hatiora (2 sp.), Hylocereus (1 sp.), Lepismium (2 sp.), Melocactus (1 sp., 1 subsp.), Opuntia (1 sp.), Pereskia (2 sp.), Pilosocereus (2 sp., 1 subsp.), Rhipsalis (29 sp., 2 subsp.) e Schlumbergera (5 sp., 2 subsp.). Rhipsalis barthlotti é designado sinônimo de R. crispimarginata.
Convolvulaceae na Serra Negra, Minas Gerais, Brasil
Authors: Machado Marcelo de Souza , Moreira André Luiz da Costa , Menini Neto Luiz , Salimena Fátima Regina Gonçalves
Published: November 2020

Resumo O presente trabalho é parte dos estudos florísticos da Serra Negra, incluída no complexo da Mantiqueira, sul da Zona da Mata de Minas Gerais, Brasil. A Serra Negra é composta por um mosaico de vegetação, sendo o campo rupestre e as florestas de altitude as fisionomias dominantes. Convolvulaceae está representada na região por três gêneros e seis espécies: Distimake macrocalyx, Ipomoea aristolochiifolia, I. maurandioides, I. saopaulista, I. triloba e Jacquemontia blanchetii, espécies amplamente distribuídas no Brasil. São apresentadas chave de identificação, descrições, ilustrações, fotos e comentários morfológicos, de ocorrência, floração e distribuição geográfica para as espécies.
Flora da Reserva Ducke, Amazonas, Brasil: Metteniusaceae
Authors: Amorim Bruno Sampaio , Cardozo Nállarett Dávila , Fantin Cleiton , Albuquerque Patricia Melchionna , Cabral Fernanda Nunes
Published: November 2020

Resumo O presente trabalho tem como objetivo contribuir para o conhecimento das espécies de Metteniusaceae ocorrentes na Reserva Ducke. O estudo tem por base a análise morfológica de materiais depositados em herbários e revisão de literatura. Cinco espécies foram registradas: Dendrobangia boliviana, Emmotum acuminatum, E. amazonicum, Poraqueiba guianensis e P. sericea. Chave para identificação, descrições, ilustrações, dados sobre habitat, fenologia e distribuição geográfica das espécies são apresentados.
Campomanesia adamantium and Campomanesia pubesncens are distinct species? Use of palynology and molecular markers in taxonomy
Authors: Amaral Érica Virgínia Estêfane de Jesus , Sales Juliana de Fátima , Reis Edésio Fialho dos , Coelho Christiano Peres , Castro Evaristo Mauro de , Pinto Jefferson Fernando Naves
Published: November 2020

Abstract The species Campomanesia adamantium and C. pubescens present a great morphological variability, with the existence of morphotypes and the indication of a possible hybridization process occurring between them. Thus, the aim of this study was to characterize the Campomanesia adamantium species and morphotypes of species Campomanesia pubescens through palynological reviews and with the use of molecular markers to assist the taxonomic description of the species. The plant material was collected in the experimental field of Federal University of Jataí, in bloom of 2014, and analyzes were performed in the Morphology Laboratory of Plant Taxonomy and in the Laboratory of Genetics and Plant Breeding belonging to the same institution. Analysis of scanning electron microscopy was performed at the Federal University of Lavras. Important information was found that reinforce the possibility of cross between Campomanesia adamantium and Campomanesia pubescens, generating morphotypes intermediaries, indicating a possible hybridisation process. It can be concluded that Campomanesia adamantium is farthest from the morphotype 2 from Campomanesia pubescens, and morphotypes 1 and 3 are intermediate between them, possibly being hybrids.
Banco de sementes no solo e ecologia morfofuncional de plântulas em remanescente de Floresta Tropical conectado com matriz agrícola
Authors: Silva Joselane Príscila Gomes da , Marangon Luiz Carlos , Feliciano Ana Lícia Patriota , Ferreira Rinaldo Luiz Caraciolo
Published: November 2020

Resumo O banco de sementes no solo é um dos mecanismos de regeneração natural que contribui para o surgimento de espécies em áreas florestais ou degradadas, no entanto, a composição de espécies pode ser influenciada pelo histórico de uso da terra, pela matriz em que o fragmento está inserido, entre outros. O objetivo dessa pesquisa foi avaliar a composição florística, abundância e ecologia morfofuncional de plântulas de espécies arbóreas encontradas no banco de sementes no solo em fragmento de Floresta Tropical. Foram retiradas amostras de solos e levadas para o viveiro florestal e cobertas por tela sombrite 70%. As plântulas emergidas foram contadas, identificadas e classificadas quanto à síndrome de dispersão, grupo sucessional e ecologia morfofuncional dos cotilédones. Emergiram 3.441 plântulas, em 14 famílias e 28 morfoespécies. Predominaram Miconia prasina e Cecropia pachystachya com 22,20 e 17,78%, respectivamente; a síndrome zoocórica com 64%; houve predominância de espécies secundárias iniciais, seguida de pioneiras. 78% das plântulas são do tipo PEF (fanero-epígeo-foliáceo). Embora o remanescente esteja inserido em uma matriz agrícola possui uma média riqueza de espécies arbóreas no banco de sementes, sendo a maioria das espécies classificadas como fanero-epígeo-foliáceo, demonstrando a dinâmica e capacidade de autorregeneração da área estudada.
Chave dendrológica e caracterização da morfologia vegetativa da família Lauraceae em um remanescente de Floresta Ombrófila Mista, Curitiba, PR
Authors: Völtz Rafael Rosenstock , Blum Christopher Thomas
Published: November 2020

Resumo A família Lauraceae se destaca na composição florística das formações florestais paranaenses, sendo estimadas na Floresta Ombrófila Mista, 23 espécies. Entretanto, a identificação de amostras estéreis é prejudicada, visto que flores e frutos apresentam as melhores condições na determinação das espécies. Este trabalho tem por objetivo quantificar a riqueza florística da família em um fragmento de Floresta Ombrófila Mista e avaliar os caracteres macromorfológicos vegetativos das espécies, buscando padrões que permitam seu reconhecimento prático. Os indivíduos da família foram localizados em campo através de buscas periódicas. Amostras férteis foram coletadas para identificação das espécies através de comparações com materiais de referência e consulta à bibliografia específica. Na caracterização macromorfológica foram selecionados pelo menos dez indivíduos de porte e ambiente similares ou, quando em menor número, todos os indivíduos existentes. Foram identificadas nove espécies de Lauraceae. O trabalho apresenta uma chave dicotômica baseada em caracteres morfológicos vegetativos, descrições e fotografias das espécies encontradas. A diferenciação através de características de folhas mostrou-se mais efetiva para as espécies de Aiouea e Nectandra, enquanto caracteres de casca interna e ramos assumem função importante em Ocotea.
Evaluation of open-pollinated offspring in Cyclamen persicum using vegetative phenology models in a primitive breeding population
Authors: Masouleh Seyedeh Somayyeh Shafiei , Moghaddam Jalal Javadi
Published: November 2020

Abstract Cyclamen is commercially cultivated to produce the pot and garden flowering plants by sowing the seeds, and the number of leaves is an important trait for the beginning of the initiations of flower buds and flowering. The yield potential is affected by the life cycle of a plant and the plant breeders can have good decisions making with the prediction of plant phenology. In this study, a polynomial function was proposed for modeling behavior of cyclamen offspring during the vegetative growth. This modeling is based on information on environmental changes and plant morphology up to the flowering stage. For this purpose, 30 pots (individuals) from a 121-individual population, which were the same in the size, were considered for sampling of data. The data were recorded as time series that include temperature (°C), relative humidity (%), leaf width (mm) and number of leaves. The output of this model is the number of leaves and the recorded inputs are the time (growth cycle; days), temperature, relative humidity and leaf width. Using the Quantum-behaved Particle Swarm Optimization (QPSO) algorithm, the constant coefficients of the proposed function (linear model) was calculated to match the input and output values to each other. To illustrate the robustness and efficiency of model, the growth rates of all individuals were compared using this proposed model. The result of root mean square error (RMSE), mean absolute error (MAE), and coefficient of determination (R 2 ) between the estimated and observed values for each individual showed that 63% of the tested open-pollinated (OP) population is marketable. Therefore, phenology model could be a good estimation of the vigor of the OP population for commercial production. It should be noted that in obtaining the model, only five individuals were used randomly as training data, and the obtained model was fitted to the others as test dataset without changing the coefficients. Furthermore, a Gaussian model of the whole dataset showed that the OP seeds of cyclamen could be utilized to produce the potted flowering cyclamen without any worry about non-uniformity of harvest for the market if the optimum temperature would be adjusted.
Alleviative effects of chitosan or humic acid on Vitex trifolia ‘Purpurea’ grown under salinity stress
Authors: Ashour Hossam Ahmed , Esmail Sanaa Esmail Ahmed , Kotb Mohamed Salah
Published: November 2020

Abstract Pots experiment was conducted to investigate the effect of bio-stimulators chitosan (CHT) or humic acid (HA) on Vitex trifolia ‘Purpurea’ exposed to salinity stress. Salinity stress was imposed by irrigation with saline water at concentration of 1000, 2500 and 5000 ppm, in addition to control (280 ppm), plants exposed to salinity were sprayed every 4 weeks with either CHT at concentrations of 30, 60 and 90 ppm or HA at concentrations of 1000, 1500 and 2000 ppm, while control plants sprayed only with tap water. The results showed that, with increasing salinity stress all vegetative growth parameters were decreased and chemical constituents including total chlorophylls total carbohydrates, K+ %, Ca2+ % and K+/Na+ ratio were reduced. In contrast, elevating salinity stress increased contents of proline, total phenolic, Na+ %, Cl− %. On the other hand, foliar application of either CHT or HA had favorable impact on increasing vegetative traits and chemical compositions, meanwhile reducing accumulation of total phenolic, Na+ and Cl− % toxic ions in leaves, HA was generally more effective than CHT. Based on the results, it can be recommended that, CHT or HA at high concentration was the best effective treatments; however, HA was superior and economic treatment recommended for alleviating the adverse impact of salinity stress on Vitex trifolia ‘Purpurea’ plants irrigated with saline water at concentration up to 5000 ppm.