bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of plasma separation techniques and sperm selection on sperm recovery and viability of cooled pony stallion semen for 48h at 5°C
Authors: Pessoa G.A. , Martini A.P. , Trentin J.M. , Minela T. , Rubin M.I.B.
Published: November 2020

ABSTRACT Separation techniques of seminal plasma [centrifugation (SC) and Sperm Filter® (SF)] and sperm selection [Androcoll-E (SCA) and filtration glass wool (GW)] were used in 24 ejaculates from 6 stallions. In experiment 1, the ejaculates were allocated into control (no spin), centrifugation at 600 g x 10min, SF and GW. In experiment 2, semen was submitted to SC, SGA and filtered through GW. Following the treatments in both experiments, samples were kept chilled at 5°C to 50 x 106 sperm/ml for 48h. The variables measured on fresh and cooling semen were pH, motility, membrane viability function by 6-carboxyfluorescein diacetate and propidium iodide (CFDA / PI), viability or vitality (eosin / nigrosine) and mitochondrial activity. In experiment 1, centrifugation to remove seminal plasma resulted in greater damage to sperm than separation by sperm filter, and selection by glass wool was more efficient in separating viable cells and maintaining viability during cooling. In experiment 2 Androcoll-E and glass wool treatments resulted in higher (P <0.0001) motility, membrane function, mitochondrial activity, and viability than centrifuged semen. Both selection by Androcoll- E and glass wool improved the quality of semen pony stallions for preservation for up to 48h to 5ºC.
Reference values for biochemical analytes in feral sheep from Socorro Island, Revillagigedo Archipelago, Mexico
Authors: Arias I.E. , Prado R.O.F. , García M.L.J. , Zepeda B.J.L. , García C.A.C.
Published: November 2020

ABSTRACT To establish reference values for biochemical analytes related to freshwater shortage adaptation, a total of 376 blood samples were collected from feral sheep at Socorro Island, Revillagigedo Archipelago. Year-round variation was assessed by sampling at the beginning of each season defined by the March equinox, June solstice, September equinox, and December solstice. The resulting data set was analyzed using Gaussian distribution and descriptive statistics. Confidence intervals of 95% were established. Analysis of variance was used to compare the mean values of each season. Total cholesterol, triglycerides, urea, albumin, total protein, sodium ion, anion gap, creatine kinase, arginine vasopressin, and aldosterone showed concentrations above the reference range for domestic sheep. Triglycerides, urea, albumin, sodium ion, and aldosterone showed concentrations within the reference range for domestic goats. Most biochemical analytes showed differences (P<0.05) between seasons, with the highest values occurring during winter, and the lowest during spring. Results could help improve the accuracy of metabolic profiles used as a tool for evaluating dehydration indicators, and to describe the physiological mechanisms employed by feral sheep to cope with seasonal availability of freshwater.
Probiotic and synbiotic in broiler diet: performance and Enterobacteriaceae
Authors: Leite P.R.S.C. , Oliveira H.B. , Souza V.B.L. , Rocha F.O. , Oliveira T.H.
Published: November 2020

ABSTRACT The objective of this study was to evaluate the effects of probiotics and synbiotics on the performance and Enterobacteriaceae count of broiler chickens. A total of 640 one-day-old male broiler chicks were distributed in a completely randomized design with four treatments and eight replicates with 20 birds each. The treatments were: ration with performance enhancer (zinc bacitracin; positive control); ration without performance enhancer and probiotic/synbiotic (negative control); ration with probiotics; and ration with synbiotics. At 35 days, five birds from each treatment were euthanized and intestinal contents were harvested for determining the Enterobacteriaceae count. The performance data and average colony-forming units (CFUs) transformed as log CFU/g were subjected to analysis of variance and Tukey’s test. The effects of probiotics and synbiotics were observed in the initial phase, with supplemented birds exhibiting comparable weight gain to those supplemented with bacitracin. No effect of the treatment on broiler performance was observed after 42 days. The enterobacterial count was comparable among all experimental treatments. Supplementation with probiotics and synbiotics did not compromise the performance of broilers and did not alter the Enterobacteriaceae count.
Iliofemoral technique modification using an anchor screw as treatment of canine traumatic hip luxation - case report
Authors: Rocha A.G. , Costa R.C. , Morato G.O. , Chung D.G. , Padilha-Filho J.G. , Minto B.W. , Dias L.G.G.G.
Published: November 2020

ABSTRACT Twelve dogs with traumatic hip luxation were selected for surgical intervention with a modified iliofemoral suture technique using an anchor screw to substitute the passage of suture material through a perforated tunnel in the ilium. Six procedures were performed with non-absorbable suture and other six with absorbable suture materials. These cases were evaluated at 15, 30, 60, and 90 days after surgery by performing an ambulation analysis and palpation of the joint. In all cases, there was a return of partial and total limb support in an average of 3 and 19 postoperative, respectively. The fixation strategy of the suture material in the ilium using an anchor screw proved to be efficient with a smaller surgical approach and lesser surgical difficulty, maintaining joint congruence in acute as chronic luxation cases. The use of absorbable and non-absorbable sutures had excellent clinical results, but there was a subjective superiority of the first ones, once 4 dogs of the non-absorbable group presented some discomfort during the postoperative palpation of the joint, 90 days after surgery.
Evaluation of thermal energy consumption in broiler farms and saving strategies
Authors: Jahedi A. , Zarei A.
Published: November 2020

ABSTRACT The aim of this study was to evaluate thermal energy consumption in broiler farms and provide solutions to reduce it. This study was performed with a completely randomized design under 4 climatic conditions, including Ardabil (cold climate representative), Khuzestan (warm climate representative), Isfahan (dry climate representative) and Guilan (temperate climate representative) in 4 replicates (4 broiler farms in each climate) and with 5 repetitions (5 periods of breeding per unit) and a capacity of 492,700, Ross 308 broiler in each breeding period. According to the results, in all climates, the proposed solutions to save thermal energy were able to create a significant difference (P<0.05). The experimental results also showed that the difference in thermal energy consumption in cold and dry climates wasmuch higher than in temperate and warm climates (P<0.05). Overall, the results of the present study show that, by optimizing andmodernizing construction equipment in broiler farms, thermal energy losses can be reduced in all climatic conditions.
Association between Neospora caninum seropositivity and reproductive disorders in girolando cows
Authors: Gaia V.G. , Grillo G.F. , Mello M.R.B. , Palhano H.B. , Silva A.F.
Published: November 2020

ABSTRACT The aim of this study was to investigate the presence of anti-Neospora caninum antibodies in Girolando cows, in order to evaluate the association between seropositivity and reproductive disorders. Blood samples were collected from 40 dairy cows in their reproductive phase from the cranial superficial epigastric vein. The blood samples were tested using the Indirect Fluorescence Antibody Test (IFAT) to detect anti-N.caninum antibodies. The serological results were used to verify whether there was any association with the manifestation of reproductive disorders based on data from the records of reproductive history from 2017 to 2018 as well as the clinical observations of the herd throughout this study. The Fisher exact test was used to verify the existence of an association between the serology and reproductive disorders, adopting a 95% confidence level. The serological results showed a 27.5% seroprevalence in the herd for N. caninum, however, after statistical analysis, no association between seropositivity and reproductive disorders was found in the evaluated herd. Although the studied population is infected with Neospora caninum, we can infer that anti-Neospora caninum antibodies present in Girolando dairy cows at the UFRRJ Dairy Cattle Facility are not associated with the occurrence of reproductive disorders.
Aberrant right subclavian artery in a dog ˗ case report
Authors: Tavares T.G. , Lima C.V.B. , Romão L.P. , Marin J.F.V. , Silveira D.S. , Nunes L.C. , Boeloni J.N.
Published: November 2020

ABSTRACT The brachiocephalic trunk and the left subclavian artery originate from the aortic arch, and both supply blood to the head, neck, and thoracic limbs. Anatomical variations, such as an aberrant right subclavian artery, are congenital conditions rarely observed in dogs, Thus, the objective of the present report was to describe a case of aberrant right subclavian artery in a 9-year-old Dalmatian. However, this anomaly was a finding in which the patient was asymptomatic during its 9 years of life and only at this age did he exhibit signs including sialorrhea, vomiting, hyporexia, and noisy deglutition. Blood count, biochemical profile, and thoracic radiography led to a diagnosis of megaesophagus and aspiration pneumonia. Despite the recommended treatment, the patient did not respond well; as such, the owner elected to euthanize the animal. On necropsy, the right subclavian artery originated directly from the aortic arch, followed a route from left to right dorsally to the esophagus, and then formed an impression of the vascular path over the muscular wall of the esophagus. The esophagus, in turn, exhibited a flaccid wall and dilation in the caudal portion to the vascular path made by the ectopic position of the right subclavian artery.
Productivity of steers of different genotypes: forecast based on interior indicators
Authors: Slozhenkina M.I. , Gorlov I.F. , Shakhbazova O.P. , Radjabov R.G. , Ivanova N.V. , Mosolova D.A. , Knyazhechenko O.A. , Poorghasemi M.R. , Seidavi A.R.
Published: November 2020

ABSTRACT Meat productivity and quality of beef are determined by a number of factors, including pedigree traits of animals. Meat productivity is closely related to the biological patterns of their growth and development. Considering the patterns that affect meat productivity enables effective growing and fattening of livestock and obtaining commercially viable beef. To predict economically useful traits in beef cattle breeding, interior indicators can be used, as they reflect the metabolic picture of the animal’s body. The research studies in physiology and biochemistry of livestock aimed at revealing the persistent mechanisms of a growing animal organism make them relevant. The article identifies a correlation between the interior indicators and the fattening indicators of three experimental groups of steers. The main forecasting factors of meat productivity indicators have been substantiated. Regression coefficients have been found and show how much the live weight varies depending on the determining factors. Meat productivity predicting procedures have been modeled with respect to the protein content in blood serum.
The association between maternal features and nutritional problems in children with autism spectrum disorder
Authors: ATEŞ-ŞAHİNKAYA Nur , ACAR-TEK Nilüfer , DIGÜZEL Emre
Published: November 2020

ABSTRACT Objective In the literature, there is almost no data on the relationship between autistic children’s nutritional problems and their mothers’ demographic and nutritional characteristics. Therefore, this study aimed to evaluate whether there was a relationship between maternal features and nutritional problems in autistic children. Methods This study was conducted with the participation of 58 autistic children (6-19 years) and their mothers. Descriptive data were obtained with a general questionnaire. For the evaluation of children’s nutritional status, anthropometric measurements and 24-hour dietary recall were used. Also, the Brief Autism Mealtime Behavior Inventory and ORTO-15 questionnaires were used to evaluate the meal behavior of children and orthorexia tendency of mothers, respectively. Results No significant correlation was found between the Brief Autism Mealtime Behavior Inventory scores in children of mothers with high and low orthorexia tendency. There were also no statistically significant differences between the children of mothers with high and low educational level in terms of Brief Autism Mealtime Behavior Inventory scores. Only the dietary vitamin B6 intake was significantly higher in the children of mothers with high educational level. Maternal age was associated with the dietary energy and protein intake, unlike, maternal orthorexia tendency was not associated with the nutritional status and meal behavior of children. The abdominal pain experience in the last one month was found to be significantly higher in the children of employed mothers than children of unemployed mothers. Conclusion It is thought that the maternal characteristics are not effective on meal behavior in children and also maternal age and educational status have a very limited effect on the nutritional status of children.
Study on the relationship between the IVol-BR and the future returns of the Brazilian stock market,
Authors: Cainelli Paloma Vanni , Pinto Antonio Carlos Figueiredo , Klötzle Marcelo Cabús
Published: November 2020

ABSTRACT In 2015, the Financial Economics Research Center (NEFIN) of the University of São Paulo proposed an implicit volatility index for the Brazilian stock market based on the daily prices of options for the Bovespa index (Ibovespa) and that measures the expected volatility of the Ibovespa in the next two months. The aim of this study is to determine whether this implicit volatility index can be considered an antecedent indicator of future returns of the Brazilian stock market, given that it represents the expected volatility of the Ibovespa two months into the future. This study contributes to the literature on the implicit volatility index for the Brazilian stock market, which has been scarce until now. This happens due to the recent establishment of the index and due to the fact that there is not an official one published by the B3 S.A. - Brasil, Bolsa, Balcão (B3). Given the relationship found between the Brazilian implicit volatility index and the future returns of the Ibovespa, investors could anticipate instabilities in the Brazilian market by putting together strategies to protect their investment portfolios, as well as identifying opportunities to enter and exit the market. This research corroborates in disclosing the Brazilian implicit volatility index in order for it to become more widely used in academia and in the Brazilian financial market. The increase in studies on this index may also incentivize the launch of an official implicit volatility index by the B3. The relationship between the Brazilian implicit volatility index and the future returns of the Ibovespa is examined using least squares and quantile regressions. The implicit volatility index for the Brazilian stock market could help in predicting the future returns of the Ibovespa, especially for 20-, 60-, 120-, and 250-day future returns.
Acute toxicity of a deltamethrin based pesticide (DBP) to the Neotropical electric fish Microsternarchus cf. bilineatus (Gymnotiformes)
Authors: CHAVES Valesca de Souza , MARCON Jaydione Luiz , DUNCAN Wallice Paxiúba , ALVES-GOMES José Antônio
Published: November 2020

ABSTRACT Deltamethrin is a pyrethroid insecticide widely used in pest control in Brazilian agriculture. The intensive and disordered use of this pesticide in the Amazon region can drive it into aquatic ecosystems in several ways, but mainly by runoff and leaching. The present study was conceived to determine the acute toxicity (LC50) of a deltamethrin based pesticide (DBP) and to characterize its effects on two biochemical biomarkers, glutathione-S-transferase (GST) and acetylcholinesterase (AChE), in tissues of the electric fish Microsternarchus cf. bilineatus. Fishes were exposed to concentrations of 1, 2, 3, 4 and 5 μg L-1 of DBP for up to 96 hours. For each treatment, the absolute activity of the enzymes GST (muscle and liver) and AChE (muscle and nervous tissue) were analyzed. The LC50-96 h for Microsternarchus cf. bilineatus was 2.15 μg L-1, the lowest concentration registered for an Amazonian fish species so far. None of the concentrations tested of this insecticide affected AChE activity for the exposure period tested. A significant increase in muscle GST activity was detected only for concentrations of 2 and 3 μg L-1.
Variation in environmental characteristics of waters among Amazon coast oyster culture units
Authors: SAMPAIO Dioniso de Souza , SANTOS Maria de Lourdes Souza , TAGLIARO Claudia Helena , BEASLEY Colin Robert
Published: November 2020

ABSTRACT Oyster culture has benefited traditional coastal communities along the Amazon macrotidal mangrove coast of Pará state in Brazil since 2006. Currently, seven oyster culture units in five municipalities are expanding production, but with no environmental monitoring, which is important for the control of the impacts of oyster culture on waters as well as for oyster management and conservation. Seasonal variation in environmental characteristics of the water was evaluated at all oyster culture units in Pará, from September to November 2013 (dry season) and February to April 2014 (wet season), to generate baseline data to evaluate future impacts and aid strategic planning, such as diversifying seed production. Salinity, dissolved oxygen, pH, oxidation-reduction potential, depth, temperature, and chlorophyll-a concentration were measured during flooding and ebbing tides, and compared between seasons and among culture units using uni- and multivariate statistics. All variables were significantly higher in the dry season, except depth, which was significantly greater in the wet season. Mean salinity, which varied from 2.4 to 46, explained most of the variation among culture units in relation to season, sampling date within each season and tidal state. However, dissolved oxygen, pH and depth were also important. Oyster culture units in Pará may be suitable for sustainable harvesting of seed/spat from the wild (lower salinity and pH), or for on-growing (higher salinity, higher pH, and greater depth). Seasonal variation is sufficient to allow both activities at most units at appropriate times of the year, which would help increase oyster production in Pará.
Evidence of mutagenic and lethal effects of herbicides on Amazonian frogs
Authors: FERRANTE Lucas , FEARNSIDE Philip M.
Published: November 2020

ABSTRACT Amphibians are excellent bioindicators because they are sensitive to chemical pollution and can indicate ecosystem changes due to the presence of or exposure to chemical compounds. Here we report evidence of the impact of herbicides, including glyphosate, on amphibians in a locality in the central Brazilian Amazon and compare it with data from other biomes in Brazil. We observed malformations in three species of Leptodactylus and local extinctions of Scinax ruber and Rhinella marina from reproductive sites close to an area where herbicides had been applied. The observations in the Amazon are similar to reports from Brazil’s Atlantic forest on morphological anomalies and mortality in amphibians exposed to herbicides. We warn of the threat of expanding crops for the production of biofuels in the Amazon due to their cultivation being associated with agrochemicals, including glyphosate, posing a threat to the biodiversity of the Amazon biome.
Second capture of Promops centralis (Chiroptera) in French Guiana after 28 years of mist-netting and description of its echolocation and distress calls
Authors: FROIDEVAUX Jérémy S.P. , ROEMER Charlotte , LEMARCHAND Clément , MARTÍ-CARRERAS Joan , MAES Piet , RUFRAY Vincent , URIOT Quentin , URIOT Sylvain , LÓPEZ-BAUCELLS Adrià
Published: November 2020

ABSTRACT The Amazonian basin harbours some of the most bat-diverse ecosystems worldwide. Yet, information on elusive, high-flying bat species such as Molossidae is scarce or virtually missing in the literature, which hampers conservation efforts both locally and globally. The recent advent of new technologies specifically designed to survey bats, such as passive ultrasound detectors and acoustic lures, has significantly increased understanding of bat ecology and distribution, and has allowed researchers to gather new and valuable information which was impossible to collect in the past. We undertook a rapid bat diversity assessment in French Guiana using acoustic lures to aid in capturing high-flying insectivorous bat species. Here we report the second and third capture record of Promops centralis (Chiroptera, Molossidae) for French Guiana, captured after 28 years since the first and only captures so far in the county. One individual was a post-lactating female and represents the first record of breeding P. centralis in French Guiana. We provide (i) morphometric and acoustic data (including the species’ distress calls) as well as detail photography to aid in species identification; and (ii) COI and CytB sequences of the two individuals (first mitochondrial sequences for French Guiana).
Description of the female and larval stage of Denopelopia amicitia Dantas, Hamada & Mendes (Diptera: Chironomidae)
Authors: DANTAS Galileu P.S. , HAMADA Neusa
Published: November 2020

ABSTRACT Denopelopia amicitia Dantas, Hamada & Mendes was described based on the male and pupae collected in the Brazilian Amazon. Here we describe and illustrate the female and larva of this species. At both stages, D. amicitia is similar to Denopelopia atria Roback & Rutter, which is the only species in the genus with all life stages known until now.
PRACTICES FOR THE PREVENTION OF SEXUALLY TRANSMITTED INFECTIONS AMONG UNIVERSITY STUDENTS
Authors: Ramos Raquel Conceição de Almeida , Spindola Thelma , Oliveira Claudia Silvia Rocha , Martins Elizabeth Rose Costa , Lima Giselle da Silva Figueiredo , Araujo Agatha Soares de Barros de
Published: November 2020

ABSTRACT Objective: to analyze the sexual practices adopted by university students for the prevention of Sexually Transmitted Infections Method: a quantitative, descriptive and cross-sectional study, conducted in 2016, at a private university in the municipality of Rio de Janeiro, Brazil. A convenience sample was selected, stratified by gender, of 768 students who answered a self-administered questionnaire, structured with variables of sociodemographic characterization and related to knowledge about sexually transmitted infections, sexual practices, prevention practices and care with sexual health. In the analysis, descriptive statistics, chi-square tests and analysis of variance were used, with a significance level of 5%. Results: most of the university students ‒ 654 (85.16%) ‒ had an active sex life and 480 (62.54%) did not use condoms in all their sexual encounters. Among the participants, 509 (84.83%) said they had sexual intercourse with a steady partner, of which 224 (44.01%) used a condom. In the investigated group, 313 (47.86%) had relationships with casual partners, with 199 (63.58%) reporting having used a condom. Among the participants, 174 (26.61%) had their sexual practices classified as adequate/satisfactory. Conclusion: the findings show that the university students investigated present a risk behavior for Sexually Transmitted Infections due to inadequate/unsatisfactory sexual practices. Health education actions should consider cultural and individual aspects of the group in order to encourage reflection on practices for the prevention of sexually transmitted diseases.
A restauração arquitetônica na década de 1980 no Brasil a partir dos exemplos da Revista do Patrimônio Histórico e Artístico Nacional
Authors: KÜHL BEATRIZ MUGAYAR
Published: November 2020

RESUMO Este artigo trata de questões relacionadas ao restauro arquitetônico nos anos 1980 no Brasil a partir dos exemplos que aparecem nos números da Revista do Patrimônio Histórico e Artístico Nacional daquela década. O intuito é evidenciar formas como questões de restauro ali aparecem e problematizar o discurso em torno dos exemplos publicados. Ainda faltam no Brasil estudos que tratem de forma sistemática o conjunto das restaurações feitas no país naquele período, apesar de existirem análises sobre obras específicas de grande interesse. O objetivo deste texto não é fazer apresentação metódica do quadro de intervenções daquele momento, mas problematizar alguns temas a partir daquilo que a então Secretaria do Patrimônio Histórico e Artístico Nacional (Sphan) (atual Instituto do Patrimônio Histórico e Artístico Nacional - Iphan) valorizou em sua revista, especialmente dois casos ali publicados - a proposta de ação prevalentemente conservativa nas Ruínas de São Miguel das Missões e a intervenção no Paço Imperial do Rio de Janeiro -, contrabalançados por outros textos do periódico. Para tanto, será inicialmente explicitada a forma de circunscrição do tema e de sua abordagem para, a seguir, apresentar algumas características da Revista do Patrimônio nos anos 1980. Depois, serão enfrentados os artigos sobre as Ruínas de São Miguel e sobre o Paço Imperial que, na sequência, serão contrabalançados com outros discursos em torno deles e com outros textos que aparecem naqueles mesmos números, os quais tratam de diversas questões de preservação e lançam luzes mais matizadas sobre o que se discutia sobre restauração naquela década.
A estética do jardim na literatura: Delille, Goethe e Poe
Authors: Arraes Esdras Araujo
Published: November 2020

RESUMO O artigo reflete sobre os discursos literários e visuais do jardim e da natureza que há em determinadas obras dos poetas e escritores Jacques Delille, Johann Wolfgang von Goethe e Edgar Allan Poe. Inicialmente apresenta-se uma bibliografia atual dedicada a interpretar as imbricações entre a literatura e a jardinagem para, em seguida, abordar a representação dos jardins no poema “Os jardins” (1782) de Delille, no romance As afinidades eletivas (1809) de Goethe e em dois contos de Poe - O domínio de Arnheim ou o jardim-paisagem (1842) e A cottage de Landor. Um caminhante no domínio de Arnheim (1846). A narrativa do texto considera as duas formas de jardins do século XVIII - a de “gosto francês” e o “jardim-paisagem” - como alegorias de diferentes cosmovisões, as quais dizem respeito, sobretudo, à maneira como o ser humano se relaciona com seus pares e com a natureza. A metodologia emprega uma abordagem interdisciplinar com foco na estética, na literatura, na história da arte e na arquitetura.
Programa Superendividados: “Uma Luz no Fim do Túnel para quem está Perdido”
Authors: Pérez-Nebra Amalia Raquel , Siqueira Andreia Oliveira de , Couto Cleno , Oliveira Letícia Figueiredo
Published: November 2020

Resumo O objetivo deste trabalho foi descrever a experiência de um projeto de extensão realizado em um Tribunal de Justiça com consumidores superendividados no período de 2015-2017. Acompanhou-se nesse período o surgimento do Programa de Prevenção e Tratamento de Consumidores Superendividados e do Centro Judiciário de Soluções de Conflito e de Cidadania Superendividados, que atenderam um total de 1.142 participantes em ações de tratamento e 1.296 pessoas em ações de prevenção (apuração em 05/07/2017), dos quais 163 foram atendidos especificamente pelas ações da extensão. Houve resultados em três vertentes: alunos, cidadãos e tecnologia social. Para os alunos, o impacto ocorreu no desenvolvimento de habilidades de atendimento psicossocial, na pesquisa com dados qualitativos e quantitativos, no treinamento e apresentação em grupo e no aprendizado de conteúdos relacionados tanto à psicologia econômica - área negligenciada no Brasil - quanto a diferentes técnicas de intervenção. O impacto para o cidadão superendividado esteve em receber atendimento em diferentes temáticas, como prevenção de recaída e tratamento do problema. Ressalta-se que o cidadão que busca atendimento no Poder Judiciário usualmente não recebe apoio psicossocial. Finalmente, o impacto em termos de tecnologia social esteve no desenvolvimento de planejamentos de intervenções replicáveis para o tratamento do superendividamento com viabilidade de implementação e baixo custo de execução. Operacionalmente, criou-se o planejamento e testes em diferentes níveis (reação e comportamento) de grupos temáticos ligados às estratégias de enfrentamento, inquérito apreciativo e autorreferentes. Todos os grupos foram criados a partir das demandas advindas das orientações psicossociais individuais. Portanto, acredita-se que o projeto de extensão cumpriu o seu objetivo.
Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
Authors: Cazal-Martínez Cinthia Carolina , Reyes-Caballero Yessica Magaliz , Pérez-Estigarribia Pastor Enmanuel , Arrúa-Alvarenga Andrea Alejandra , Mendes Juliana Moura , Kohli Man Mohan
Published: November 2020

ABSTRACT Fusarium head blight (FHB), or scab, caused by a Fusarium spp. complex, is an important wheat disease in Paraguay. Among the strategies used to control it, the genetic resistance is considered highly efficient and cost effective. This study aimed to evaluate and compare the effects of F. graminearum on six wheat genotypes, including two comparison varieties, in two seeding dates. The genotypes were artificially inoculated in the spike, at the flowering stage, by injecting a pool of four pathogenic F. graminearum isolates. The FHB development was evaluated by scoring the disease incidence and severity, percentage of diseased spikelets and damaged kernels, as well as using the area under the disease progress curve. Besides the kernel infection, its impact on the development of mycotoxins (deoxynivalenol) and interactions with the genotypes were also evaluated. The results identified an advanced breeding line (Lin 84) with a resistance level to FHB comparable to that of the universally known resistance sources (Sumai 3 and Frontana). The other three genotypes (Caninde 11, Caninde 12 and Caninde 21), in spite of presenting a higher grain yield potential, were evaluated as moderately susceptible to susceptible. These results suggest that, although it is possible to transfer the FHB resistance to a higher agronomic type, combining such resistance with a higher grain yield potential remains an ongoing challenge.
Potassium availability in Brazilian semiarid soils cultivated with melon
Authors: Paiva Kariolania Fortunato de , Severo Pedro Jorge da Silva , Oliveira Flávio Sarmento de , Soares Lauriane Almeida dos Anjos , Araujo Josinaldo Lopes
Published: November 2020

ABSTRACT Haplic Vertisols and Typic Quartzipsamments are among the main classes of soils used for melon production in the Brazilian semiarid region. Potassium (K) is the nutrient most extracted by yellow melon fruits and, for this reason, high doses of potassium fertilizers are often applied to these soils. This study aimed to evaluate potassium fractions in soils of the Brazilian semiarid region, during the cultivation cycle of fertigated yellow melon. Two experiments were carried out with two types of soil (Haplic Vertisol and Typic Quartzipsamment). For the Vertisol, a 7 x 2 [seven evaluation periods and two soil layers (0-20 cm and 20-40 cm)] factorial arrangement was established, with four replications, totaling 56 experimental units. For the Quartzipsamment, a 9 x 2 [nine collection times and two soil layers (0-20 cm and 20-40 cm)] factorial arrangement was used, with four replications, totaling 72 experimental units. The non-exchangeable K fraction was dominant in both soils, mainly in the 0-20 cm layer, and represents an important reserve of this nutrient for melon cultivation, especially in Haplic Vertisols. The decrease in the concentrations of the soluble and exchangeable forms and the increase in the non-exchangeable form indicated an increase in the fixation of this nutrient, by fixation in the Vertisol and leaching in the Quartzipsamment, at the end of the melon cycle, when the amount of K accumulated by the plant was lower.
Amor, masculinidades e resistência: uma leitura queer
Authors: Mattia Bianca Rosina
Published: November 2020

Resumo O estranhamento, o anormal, as diversas expressões de gênero e o abjeto que caracterizam o queer, na medida em que possibilitam novos olhares, sobretudo pela pluralidade de identidades que revelam, desafiam a heteronormatividade, colocam em crise a suposta identidade viril masculina e fazem com que se desconfie das normatividades, das ordens e do que a elas corresponda. Com aporte na teoria queer, a par dessas possibilidades de pensamento, a proposta deste trabalho é apresentar algumas reflexões acerca da experiência amorosa vivida entre os adolescentes Camilo e Cosme, narrada no romance O amor dos homens avulsos, do escritor Victor Heringer, publicado em 2016. A experiência amorosa vivida entre as personagens, quando lida sob a perspectiva do estranhamento queer, mostra-se libertária, ainda que enfrente brutalidades decorrentes dos preconceitos construídos e perpetrados pela lógica heteronormativa. O amor presente na narrativa é tomado como prática de resistência à hegemonia heterossexual, especialmente em um contexto político opressor, e como combate à masculinidade tóxica, fonte de desumanização.
A autoadvocacia como prática de empoderamento de adolescentes com deficiência auditiva: um estudo-piloto
Authors: Silva Rebeca Liaschi Floro , Carneiro Larissa de Almeida , Nery Daniele Batista , Duarte Luciana Alves , Moret Adriane Lima Mortari , Salimon Amanda , Angelo Thais Corina Said de , Medina Camila , Albano Danielle Mecheseregian , Abramides Dagma Venturini Marques , Lopes Natália Barreto Frederigue , Jacob Regina Tangerino de Souza
Published: November 2020

RESUMO Objetivo verificar a efetividade da intervenção com atividades lúdicas grupais que visam desenvolver a autoadvocacia e a autocidadania como prática de empoderamento de adolescentes com deficiência auditiva. Métodos trata-se de um estudo experimental pré e pós-intervenção, de abordagem quantitativa e qualitativa. Participaram quatro adolescentes com idades entre 12 e 17 anos, usuários de aparelho de amplificação sonora individual e/ou implante coclear, oralizados. Foram realizados cinco encontros presenciais, nos quais foram abordados temas relacionados à autoadvocacia, por meio de atividades lúdicas. Os instrumentos Checklist de Autoadvocacia “Eu consigo” e o Questionário de participação em sala de aula foram aplicados na pré e pós- intervenção. Foram aplicados o Inventário de Habilidades Sociais para Aadolescentes (IHS-Adolescente) e a Escala Wechsler Abreviada de Inteligência. Os dados foram analisados de forma qualitativa e quantitativa. Resultados No Inventário de Habilidades Sociais para Adolescentes, para frequência, todos os participantes foram classificados como abaixo da média ou média inferior. No teste de Escala Wechsler Abreviada de Inteligência, observando o dado de quociente de inteligência de execução, todos ficaram na média. Houve diferenças na comparação dos resultados pré e pós-intervenção do Checklist de Autoadvocacia “Eu consigo”, principalmente no domínio compreensão da audição e da perda auditiva e uso dos dispositivos auditivos. No Questionário de participação em sala de aula, foi observada piora em alguns domínios, como compreensão dos professores e aspectos negativos. Conclusão O programa de intervenção com a estruturação proposta neste estudo foi eficiente para desenvolver as habilidades de autoadvocacia e autocidadania para o empoderamento de adolescentes com deficiência auditiva.
Tendência temporal e fatores associados à gravidez na adolescência
Authors: Lopes Mislaine Casagrande de Lima , Oliveira Rosana Rosseto de , Silva Marcela de Andrade Pereira da , Padovani Camila , Oliveira Nelson Luiz Batista de , Higarashi Ieda Harumi
Published: November 2020

RESUMO Objetivo Analisar a tendência e os fatores associados à gravidez na adolescência em um município do Paraná. Método Estudo ecológico, realizado com os registros de nascimentos de bebês de mães adolescentes, nos anos de 2000 a 2015, constantes no Sistema de Informação sobre Nascimento. As proporções foram calculadas ano a ano para a análise de tendência da gravidez na adolescência. Para a análise dos fatores associados utilizando a razão de chances, foram escolhidos dois triênios. Resultados Associaram-se à gravidez na adolescência as variáveis: estar sem companheiro; escolaridade menor que oito anos; primiparidade; idade gestacional menor que 37 semanas; cesárea; número de consultas menor que sete; e Apgar menor que sete no primeiro minuto. Observou-se tendência decrescente entre grávidas com companheiro; crescente de grávidas adolescentes com escolaridade maior que oito anos e para o parto prematuro; decrescente/crescente do parto normal; crescente para número de consultas de pré-natal; decrescente ao valor do Apgar no primeiro e quinto minuto; crescente de anomalias congênitas. Conclusão A análise possibilitou o levantamento de informações que podem ser utilizadas para propor estratégias de prevenção da gravidez e assistência à mãe adolescente.
Biological strategy to improve decomposition of organic matter in tilapia pond
Authors: Lopes Gustavo Ruschel , Oliveira Hugo Mendes de , Jesus Gabriel Fernandes Alves de , Martins Maurício Laterça , Miranda Gomes Carlos Henrique Araújo de , Soligo Thiago , Mouriño José Luiz Pedreira
Published: November 2020

Abstract: Aim The increment of decomposition of organic matter in sediment samples from Nile tilapia farms was evaluated with the introduction of Bacillus subtilis and B. licheniformis bacteria. Methods Sediment samples placed in 18L plastic boxes received single dose inoculum with the following concentrations: 1.21 x 106 CFU g-1 (equivalent to 75 g ha-1), 2.41 x 106 CFU g-1 (equivalent to 150 g ha-1), 4.82 x 106 CFU g-1 (equivalent to 300 g ha-1) and 1.61 x 107 CFU g-1 (equivalent to 1000 g ha-1), in addition to a control treatment with saline solution only. Organic matter content, total organic carbon (TOC) and oxidizable (OOC), total nitrogen (TN), ratios (TOC: N and OOC: N), clay content, pH in water, Shoemaker, McLean, Pratt index (SMP Index), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) contents, potential acidity (H + Al), cation exchange capacity (CEC) at pH 7.0, base saturation (V) and sum of bases (S). Results The values of OM showed significant difference, between the lowest values (treatments 75, 150 and 300 g ha-1) and the highest value, (control treatment). TOC, OOC, NT and their relationships (TOC: N and OOC: N) showed significant differences between the mean values of the control treatment and the other treatments. Conclusions The addition of Bacillus subtilis and B. licheniformis bacteria increased the decomposition rate of organic matter in sediments samples from Nile tilapia farms.
Alteridad, subjetividad y narrativas. Reflexiones interdisciplinarias en Humanidades
Authors:   Universidad EAFIT
Published: November 2020

Alteridad, subjetividad y narrativas. Reflexiones interdisciplinarias en Humanidades es el título que hemos elegido para acompañar los textos aquí agrupados. Con él queremos denotar al menos tres asuntos. En primer lugar, la unidad múltiple que emerge del conjunto de ellos, en el sentido de que pretenden responder a inquietudes que ponen en discusión campos de problemas donde se favorece el trabajo hermenéutico y narrativo. En segundo lugar, los artículos que conforman este volumen recuperan el componente interdisciplinario de los estudios contemporáneos de las humanidades. Esto se manifiesta no solo en la elección temática, teórica y metodológica de los autores aquí congregados, sino también en la procedencia de los artículos. Los doce textos reunidos en el séptimo volumen de la colección Dos Tintas recogen algunas de las inquietudes de los estudiantes y egresados de la maestría en Estudios Humanísticos, la maestría en Hermenéutica Literaria y el doctorado en Humanidades de la Universidad EAFIT.
De la interjección a la adivinanza. La producción científica de Ramón Almela Pérez
Authors: Manso Flores Ana Alicia
Published: November 2020

En el presente artículo se propone un resumen de la investigación hecha por el profesor Ramón Almela Pérez. Sus más de cuarenta años al servicio de la ciencia han contribuido al avance de algunos campos dentro de la Filología Española; prueba de ello es el trabajo dedicado a la interjección, hoy incluido en manuales de referencia. Con motivo de la publicación en 2017 del volumen sobre la teoría e historia de las adivinanzas, se ha considerado oportuno realizar un recorrido bibliográfico sobre sus aportaciones a la disciplina. Para lograr este objetivo, se han concentrado en un epígrafe los temas, conceptos y contenidos tratados por el autor. También se presenta más detalladamente su último libro y se establecen las relaciones de este con su trayectoria científica. Al mismo tiempo, son expuestos los rasgos característicos de toda su obra: coherencia, cohesión, innovación y didactismo.
https://doi.org/10.17398/2660-7301.41.203
Stationary solutions, critical mass, Tadpole orbits in the circular restricted three-body problem with the more massive primary as an oblate spheroid
Authors: Jency A Arantza
Published: November 2020

Background: The location and stability of the equilibrium points are studied for the Planar Circular Restricted Three-Body Problem where the more massive primary is an oblate spheroid. Methods: The mean motion of the equations of motion is formulated from the secular perturbations as derived by(1) and used in(2–4). The singularities of the equations of motion are found for locating the equilibrium points. Their stability is analysed using the linearized variational equations of motion at the equilibrium points. Findings: As the effect of oblateness in the mean motion expression increases, the location and stability of the equilibrium points are affected by the oblateness of the more massive primary. It is interesting to note that all the three collinear points move towards the more massive primary with oblateness. It is a new result. Among the shifts in the locations of the five equilibrium points, the y–location of the triangular equilibrium points relocate the most. It is very interesting to note that the eccentricities (e) of the orbits around L1 and L3 increase, while it decreases around L2 with the addition of oblateness with the new mean motion. The decrease in e is significant in Saturn-Mimas system from 0.95036 to 0.87558. Similarly, the value of the critical mass ratio mc, which sets the limit for the linear stability of the triangular points, further reduces significantly from 0:285: : :A1 to 0:365: : :A1 with the new mean motion. The mean motion sz in the z-direction increases significantly with the new mean motion from 9A1/4 to 9A1/2.
Performance and evaluation of location energy aware trusted distance source routing protocol for secure routing in WSNs
Authors: Rajasekaran M
Published: November 2020

Objectives: To propose a suitable algorithm for improving the network lifetime of Wireless Sensor Networks (WSNs). Methods/Findings: We proposed a suitable Location and Energy Aware Trusted Distance Source Routing (LEATDSR) algorithm. Here, the energy consumption, location and the data quality are equalized by the Quality of Service (QoS) based routing algorithms. In addition to this algorithm, an existing clustering algorithm is also incorporates for grouping the sensor nodes based on the trust, location, energy and distance. In this LEATDSR is capable of deciding the evaluation metrics which express the QoS. Moreover, a new trust mechanism is also introduced in this model that incorporates multi-attributes of various sensor nodes in terms of communication, data, energy, and recommendation. This new trust mechanism relies on an enhanced sliding window time by considering the occurrences of attack frequency for facilitating the discovery of anomalous behaviours of attackers. The enhanced energy utilization is established within the sensor nodes for performing the active data transmission. The performance of the proposed model is evaluated by conducting various experiments in a simulation environment which creates by using NS2. From the experiments conducted in this work, the average packet transfer rate is increased drastically when compared to existing models available in the literature.
Enhancer for ovarian cyst segmentation using adaptive thresholding technique
Authors: Sheela S
Published: November 2020

Objective: To achieve the accurate segmentation of ovarian cyst from the ultrasound images. Method: Ovarian cyst ultrasound images are taken from ultrasound images.com and sonoworld.com. The cysts are segmented using adaptive thresholding technique. The segmented image (binary image) is divided into sub blocks and then number of binary transition in each block is calculated. Based on the number of transition, the pixel values are replaced by 0 or the same pixel value is maintained. In order to measure the performance of the proposed enhancer various measures like Accuracy (ACC), Dice Coefficient (DC), Jaccard Similarity Index (JSI), Matthews correlation coefficient (MCC), Sensitivity, Specificity and Precision are measured. Findings: In order to analyse the performance of the enhancer with adaptive thresholding technique, 100 ultrasound ovarian cyst images are taken. The enhancer produced better result than the existing adaptive thresholding technique. Novelty/Application: The proposed enhancer enriches the quality of the ovarian cyst segmentation.
Determinants of information and communication technology (ICT) adoption in developing countries
Authors: Farooqi Zaheer uddin
Published: November 2020

Background/Objective: The adoption of Information and communication technology (ICT) in developing countries is increasing during last two decades. This study explores the determinants of ICT adoption in 67 selected developing countries. Methods/Statistical analysis: Panel data was collected from World Bank and International telecommunication websites for the period of 2000 to 2018. This study explores the impact of access to electricity, ICT good imports, financial development index, GDP per capita, urban population, control of corruption and government effectiveness on ICT adoption. Selected developing countries are divided into four panels such as low income, lower middle, upper middle and high income countries. Pesaran CSD, Friedman CSD and Frees CSD tests are used to check the presence of cross-sectional dependency in the panel data. The results confirmed the presence of crosssectional dependency in the variables and hence CIPS second generation unit root test is used for stationarity. Kao test is used to check the long run cointegration among the variables. FMOLS is used for regression analysis. Findings: The regression results show the mixed findings in different panels. The results indicate that access to electricity is an important determinant of ICT adoption in low and lower middle income developing countries. ICT imports and Government effectiveness are among the significant determinants of ICT adoption in low, upper middle and high income developing countries. GDP per capita is an important variable for each panel. Urban population is found to enhance ICT adoption in lower middle and high income developing countries. It is recommended that Government should focus on these important determinants to increase the ICT adoption in selected developing countries. Novelty/Application: ICT development index is used as a dependent variable instead of components of ICT such as internet, mobile phone and computer penetration. New econometrics techniques and variables are used in analysis.