bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness of lipid-lowering therapy in outpatients with coronary artery disease living in a large industrial center of Eastern Siberia
Authors: Gogolashvili N. G. , Yaskevich R. A.
Published: January 2022

Aim. To study the prescription rate of lipid-lowering therapy and achieving the target low-density lipoprotein cholesterol (LDL-C) values in outpatients with coronary artery disease (CAD) living in Krasnoyarsk.

Material and methods. The study included all patients with CAD hospitalized in the cardiology department of the clinic of the Research Institute of Medical Problems of the North (Krasnoyarsk) in 2018-2019. The analysis included data from 1671 patients (men, 770; women, 901). During hospitalization, an in-depth survey of patients was carried out on the subject of prescribing and taking lipid-lowering drugs. On admission, lipid profile was assessed in all patients.

Results. At the time of admission, only 51,4% of patients received lipidlowering therapy. The majority received statin monotherapy (99,2%). Only 0,8% of patients received combination therapy (statin+ezetimibe). The most frequently prescribed statin in the study was atorvastatin — 74,6%. Rosuvastatin was received by 17,1% of patients. In most cases, the doses of atorvastatin and rosuvastatin corresponded to the moderate-intensity statin therapy regimen. The frequently prescribed dose of atorvastatin was 20 mg/day — 54,4%, rosuvastatin — 10 mg/day — 68,7%. The target level of LDL-C <1,8 mmol/L was reached by 16,3%, <1,5 mmol/L — by 9,0%, <1,4 mmol/L — only 6,5% of patients. Most often, the target LDL-C levels were achieved by patients receiving high-intensity statin (HIS) therapy. The target level of LDL-C <1,8 mmol/L was reached by 37,5%, <1,5 mmol/L — 23,9%, LDL cholesterol <1,4 mmol/L — 20,7% of patients, receiving HIS.

Conclusion. In patients with CAD living in Krasnoyarsk, the most commonly prescribed statins were atorvastatin and rosuvastatin, but only 32% of patients received HIS. Combination lipid-lowering therapy has been used extremely rarely. Among the surveyed patients, the current target level of LDL-C for patients with CAD (<1,4 mmol/L) was achieved only in 6,5% of patients. In the group of patients receiving high-intensity statin therapy, this target level was achieved in 20,7% of patients, which indicates the need for strict adherence to current clinical guidelines.
Adolescents, poverty areas, violence, and public health: an intersectional perspective
Authors: Oliveira Elda de , Luiz Olinda do Carmo , Couto Márcia Thereza
Published: January 2022

ABSTRACT Objectives: to discuss the influence of urban poverty on the context of violence among adolescents from an intersectional perspective. Methods: the original research, of the action research type, analyzed data from 13 workshops. The participants were adolescents from both sexes, from 15 to 17 years old, from a public school in a peripheral neighborhood of São Paulo, SP. The methodological proposition of intersectional analysis guided the interpretation of the empirical material. Results: the intersection of class and gender may increase the (re)production of violence in some men. The intersection of race/color, social class, and territory contributes to the construction of narratives that naturalize inequality and, thus, justify discrimination. Final Considerations: there is necessity of new public policies that consider the social contexts and experiences of the subjects that stem from the articulation of social markers.
Hospital structure elements demarcating (in)visibilities of institutional violence against children
Authors: Santos Ana Carla Petersen de Oliveira , Camargo Climene Laura de , Vargas Mara Ambrosina de Oliveira
Published: January 2022

ABSTRACT Objectives: to analyze the hospital structure elements that demarcate (in)visibilities of institutional violence in hospitalized children. Methods: this is a descriptive-exploratory qualitative study that used approaches with Foucault’s thinking. Ten companions and 39 healthcare professionals from a university hospital in Salvador, Bahia participated. Data collection took place from November 2018 to June 2019 through semi-structured interviews. The discourse analysis method was used. The study was approved by the Institutional Review Board. Results: institutional violence was understood in the violations and invisibilities of the structure of health services through the problems: in infrastructure (physical structure, lack of human and material resources, scrapping of equipment); administrative and management; pilgrimage. Final Considerations: it is necessary to realize the invisibilities of the infrastructure to act in confronting institutional violence to hospitalized children.
Knowledge, attitudes and practices related to sexually transmitted infections of men in prison
Authors: Oliveira Josias Alves de , Sousa Anderson Reis de , Almeida Lílian Conceição Guimarães de , Araújo Isabella Félix Meira , Santos Ailton da Silva , Bispo Tania Christiane Ferreira , Pereira Álvaro
Published: January 2022

ABSTRACT Objectives: to analyze the knowledge, attitudes, and practices related to sexually transmitted infections of men in prison. Methods: qualitative study, based on the methodology Knowledge, Attitude and Practice, conducted with 30 men in prison. The study applied individual interviews submitted to the analyze of the discourse. Results: the incipient knowledge of men was associated with: self-illness and the others’, diagnosis, and perception of risk behavior, pervaded by distrust or lack of understanding of the rapid test for detection. The attitudes involved culpability of partnerships, non-adherence to prevention inputs, and resistance to look for health services. The practices are linked to health care after the identification of the disease, use of penile condoms, and attention to the partnership. Conclusions: the reduced knowledge about Sexually Transmitted Infections makes attitudes stereotyped, stigmatized, compromised by the level of education. The level of health care and the limits of deprivation of liberty weaken the practices.
Inter-sectorial network for assisting women in situations of violence: handicraft work built by the people
Authors: Cortes Laura Ferreira , Padoin Stela Maris de Mello , Arboit Jaqueline
Published: January 2022

ABSTRACT Objectives: to discuss the meanings attributed by professionals to the construction of the service network for women in situations of violence. Methods: Convergent Care Research developed with the application of a convergence group with 32 participants from the health, social assistance, or public security sectors, in Santa Maria, Rio Grande do Sul. The data was produced during ten meetings, based on the problematization methodology, and submitted to analysis of thematic content and interpreted with the referential of networks. Results: the construction of the network is an artisanal work carried out by people continuously, permeated by bonds, communication and partnerships between services and knowledge of work processes. Lashings require permanent movement. Final Considerations: building a network implies defining intertwining lines; form nodes that create cross-sector connections. There is a need to institutionalize processes through care continuity protocols, associated with an efficient communication system between sectors.
ENDOSCOPIC CHARACTERISTICS OF PATIENTS WITH COMPLETE PATHOLOGICAL RESPONSE AFTER NEOADJUVANT CHEMOTHERAPY FOR GASTRIC AND ESOPHAGOGASTRIC JUNCTION ADENOCARCINOMAS
Authors: CASTRO Juliana Silveira Lima de , PELOSOF Adriane Graicer , ANDRADE-CABRAL João Guilherme Guerra de , SERAPHIM Alvaro Moura , TAGLIERI Eloy , COIMBRA Felipe Jose Fernandez , ZITRON Claudia
Published: January 2022

ABSTRACT Background: Gastric and esophagogastric junction adenocarcinoma are responsible for approximately 13.5% of cancer-related deaths. Given the fact that these tumors are not typically detected until they are already in the advanced stages, neoadjuvancy plays a fundamental role in improving long-term survival. Identification of those with complete pathological response (pCR) after neoadjuvant chemotherapy (NAC) is a major challenge, with effects on organ preservation, extent of resection, and additional surgery. There is little or no information in the literature about which endoscopic signs should be evaluated after NAC, or even when such re-evaluation should occur. Aim: To describe the endoscopic aspects of patients with gastric and esophagogastric junction adenocarcinomas who underwent NAC and achieved pCR, and to determine the accuracy of esophagogastroduodenoscopy (EGD) in predicting the pCR. Methods: A survey was conducted of the medical records of patients with these tumors who were submitted to gastrectomy after NAC, with anatomopathological result of pCR. Results: Twenty-nine patients were identified who achieved pCR after NAC within the study period. Endoscopic responses were used to classify patients into two groups: G1-endoscopic findings consistent with pCR and G2-endoscopic findings not consistent with pCR. Endoscopic evaluation in G1 was present in an equal percentage (47.4%; p=0.28) in Borrmann classification II and III. In this group, the predominance was in the gastric body (57.9%; p=0.14), intestinal subtype with 42.1% (p=0.75), undifferentiated degree, 62.5% (p=0.78), Herb+ in 73.3% (p=0.68). The most significant finding, however, was that the time interval between NAC and EGD was longer for G1 than G2 (24.4 vs. 10.2 days, p=0.008). Conclusion: EGD after NAC seems to be a useful tool for predicting pCR, and it may be possible to use it to create a reliable response classification. In addition, the time interval between NAC and EGD appears to significantly influence the predictive power of endoscopy for pCR.
HELICAL COMPUTERIZED TOMOGRAPHY CAN MEASURE SUBCUTANEOUS, VISCERAL AND TOTAL FAT AREAS?
Authors: WENDLER Guilherme , NASSIF Paulo Afonso Nunes , MALAFAIA Osvaldo , WENDLER Eduardo , WENDLER Ilana Barrichello Torres , CIRPIANI Luiza Marcelli
Published: January 2022

ABSTRACT Background: Abdominal obesity or android obesity, that is, the increase in adipose tissue in the abdominal region, is considered a risk factor for several morbidities. Different ways of quantifying it have been proposed, one method is the measurement of the abdominal fat area by computed tomography. Aim: To establish correspondence between the groups defined by degree of obesity in relation to the total, subcutaneous and visceral fat area. Methods: Cross-sectional observational study carried out through the analysis of tomographic examinations. Horos v3.3.5 medical image visualization software was used, with abdominal tomography in a single cut including the L4 vertebral body and the umbilical scar, to obtain the areas of total, visceral and subcutaneous fat. Results: Of the 40 patients, 10 had grade II obesity, 23 grade III and 7 superobese. The amount of total fat showed an increase in relation to the degree of obesity. Visceral fat did not show significant differences between the degrees of obesity, but the data showed a lower average in the group of obesity grade II. The area of subcutaneous fat, as well as total fat, showed an increase in its measurements, according to the progression of the patients’ BMI, but there was no statistical significance in this difference between the groups of grade II and super-obese individuals. Conclusion: The area of total and subcutaneous fat showed an increase in its measurements according to the progression of the BMI groups, which did not happen with visceral fat.
ARE THERE BENEFITS IN PERFORMING GASTRO-OMENTOPEXY IN LAPAROSCOPIC VERTICAL GASTRECTOMY?
Authors: SOUZA Maíra Danielle Gomes de , SILVA Lyz Bezerra , FERRAZ Álvaro A. B. , CAMPOS Josemberg Marins
Published: January 2022

ABSTRACT Background: Gastro-omentopexy promotes the reconnection of the stomach to the gastroesplenic and gastrocolic ligaments and constitutes an alternative for the prevention of complications in laparoscopic vertical gastrectomy. Aim: To demonstrate the benefits of the gastro-omentopexy technique in patients undergoing sleeve gastrectomy, with possible reduction in postoperative complications. Methods: Prospective, non-randomized, case series type study, consisting of a clinical population of 179 patients who underwent the technique in 2018, with follow-up between 6-12 months in the postoperative period. Results: From the participants 71.5% were women, aged between 30-40 years (36.3%). As for the prevalence of complications in the postoperative period, the low prevalence was evident, with emphasis on readmission (1.1%); reoperation (1.1%); wound infection (1.1%); bleeding hemorrhage (0.5%); and stricture (1.1%). However, temporary symptoms were present such as nausea/vomiting, food intolerance, epigastric pain and feeling of fullness, right after surgery. Conclusion: The technique promoted a significant improvement in quality of life and control of comorbidities. In addition, it was associated with a low prevalence of stenosis, and with no fistula, making the method safer.
IS THE WAIST/HEIGHT RATIO A BETTER PARAMETER THAN BMI IN DETERMINING THE CARDIOMETABOLIC RISK PROFILE OF OBESE PEOPLE?
Authors: MALAFAIA Andressa Bressan , NASSIF Paulo Afonso Nunes , LUCAS Ricardo Wallace das Chagas , GARCIA Rodrigo Ferreira , RIBEIRO José Guilherme Agner , PROENÇA Laura Brandão DE , MATTOS Maria Eduarda , ARIEDE Bruno Luiz
Published: January 2022

ABSTRACT Background: The increased prevalence of obesity has led to a significant increase in the occurrence of metabolic syndrome, a recognized risk factor for increased morbidity and mortality from cardiovascular diseases. Hyperglycemia or type 2 diabetes mellitus, dyslipidemia and arterial hypertension are its main components. Since 2015, international guidelines have recognized the benefits of bariatric surgery in each isolated factor of this syndrome. Aim: To evaluate the impact of Roux-en-Y gastric bypass in this syndrome comparing pre- and postoperative periods with laboratory analysis and to compare waist/height ratio and BMI in relation to the determination of the cardiometabolic risk profile. Methods: A retrospective study was carried out, selecting 80 patients undergoing Roux-en-Y gastric bypass. Total cholesterol, HDL, LDL, triglycerides, fasting glucose, glycated hemoglobin, insulin, body mass index (BMI), vitamin D, vitamin B12, waist circumference and waist/height ratio in three periods were analyzed: the preoperative period from 1 to 6 months, postoperative from 1 to 6 months and postoperative from 1 to 2 years. Results: There was an improvement in all parameters of the clinical analyses. The preoperative BMI had a mean value of 39.8, in the preoperative period from 1 to 6 months, the values dropped to 33.2 and in the postoperative period of 1 year, the mean was 26. The perimeter mean values of 118.5 preoperatively, 105.2 postoperatively from 1 to 6 months and 90.3 postoperatively from 1 to 2 years. Waist/height ratio was 0.73, 0.65 and 0.56 in pre, post 1 to 6 months and 1 to 2 years respectively. Conclusion: Roux-en-Y gastric bypass improves metabolic syndrome and waist-to-height ratio is superior to BMI in the assessment of the cardiometabolic risk profile.
Ferenczi e a constituição das formas de expressão
Authors: Câmara Leonardo , Herzog Regina
Published: January 2022

Resumo Subsiste, ao longo de toda a obra de Sándor Ferenczi, uma preocupação com a dimensão do corpo na experiência psicanalítica, concebendo-o predominantemente sob o viés da expressão. Este artigo visa apresentar uma leitura, com base em sua teoria, sobre a constituição dos múltiplos modos de expressão. Para isso, são propostas seis ideias que se organizam em duas séries paralelas e complementares. A primeira envolve as noções de onipotência, catástrofe e regressão; a segunda agrupa as ideias de condição, adaptação e complexificação.
A mixagem como leitura/escuta de narrativas do território
Authors: Silva João Pedro Goulart da , Medeiros Roberto Henrique Amorim de
Published: January 2022

Resumo O artigo é fruto de um recorte de investigação autoral dentro de uma pesquisa que tem por objetivo reconhecer territórios a partir de suas narrativas. O método da clínica de território, baseado na deriva, na escuta e na escrita, com vistas ao mapeamento, foi experimentado pelo autor principal sob orientação do coautor. Frases e expressões escritas em muros e paredes, chamadas neste trabalho de “grapixos”, foram escutadas como narrativas do território a partir da construção de um procedimento chamado de “mixagem de textos”. O objetivo deste trabalho é apresentar a proposta da mixagem como forma de ler/escutar narrativas de espaços territoriais e analisar seus problemas, suas potencialidades e seus resultados. Como resultado principal, comprovou-se que a mixagem dos textos dos grapixos com as “escrevivências” do pesquisador é um método pertinente para revelar outras camadas discursivas do território não em evidência ou silenciadas.
Brincando com a Matemática: apropriações e circulação do método de Froebel no Brasil nas primeiras décadas da República
Authors: Silva Maria Celia Leme da , Camara Alexsandra
Published: January 2022

Resumo: O presente artigo tem por objetivo analisar as apropriações do método de Froebel no que diz respeito ao ensino de matemática e a sua circulação nos estados do Rio de Janeiro, São Paulo e Paraná. Como fonte de pesquisa, examina-se o método de Froebel, presente no Manual de Menezes Vieira e na Revista do Jardim de Infância, ambas publicadas no século 19 e sua circulação e apropriação. Identifica-se a proximidade do Brasil com estudos sobre o método froebeliano advindos da Europa e dos Estados Unidos por meio de apropriações desenvolvidas em Jardins de Infância. As análises indicam que os dons de Froebel podem ser considerados objetos manipuláveis com intencionalidade educativa. Conclui-se que a história da educação matemática no Brasil precisa revisitar a Educação Infantil, possibilitando novas discussões e práticas relacionadas ao processo de ensino e aprendizagem das crianças pequenas.
Natureza da Ciência no ensino: entre a pesquisa acadêmica e as orientações oficiais para a educação básica
Authors: Pinto José Antonio Ferreira , Silva Cibelle Celestino
Published: January 2022

Resumo: A partir da constatação trazida pela pesquisa acadêmica sobre a importância da implementação de aspectos de natureza da ciência (NdC) em currículos de ciências, neste trabalho analisamos se há presença de elementos de NdC nos documentos oficiais que regem a educação básica. Foram analisados os Parâmetros Curriculares Nacionais do Ensino Médio, as Novas Diretrizes Curriculares Nacionais da Educação Básica e a Base Nacional Comum Curricular. Isso foi feito a partir da análise de conteúdo e da construção de parâmetros de localidade e inclusão baseados na noção de ciência integral. Apesar de ser uma temática importante em eventos de pesquisa na área e com um número expressivo de publicações, os documentos oficiais não se referem explicitamente à natureza da ciência, fazendo menções superficiais a discussões sobre as ciências e suas características.
Birds of Parque Estadual Ilha do Cardoso: ecology, conservation and natural history
Authors: Chupil Henrique , Monteiro-Filho Emygdio Leite de Araujo
Published: January 2022

Abstract: The Parque Estadual Ilha do Cardoso (PEIC), located on extreme South of São Paulo’s cost, in Brazil, holds an important Atlantic Forest remnant which still in a good state of conservation, but lack a deepen study about the avian community that habits the island. This study aimed to elaborate a census of avian species that occur in the park approaching richness, occurrence frequency, occurrence status and the structure of trophic guilds. A total of 25 field expedictions occurred between September 2015 and September 2017 during five days each, the field work included different ecosystems as mangrove, restinga, forest, sandbank, beach and marine. The census was made combine three different techniques used in ornithological studies: visual identification, auditory identification and catch by mist-nets (with five fixed sites in mangrove, restinga and forest). Were recorded 335 avian species, with 28 of them endemic from Brazil and 33 being threatened with extinction. Seventy-three species were recorded in all sampled months (FO 100%), while 46 were recorded in just one month (FO = 4%). About occurrence status, 55% of species are residents, 20% occasional visitors, 13% unusual residents, 6% migratory and 6% visitors. According the recorded species were recognized 25 trophic guilds based on food items, corporal size and strata that commonly forage, which of most representative in the community, the guild of “of insectivorous of medium-strata” (N = 55), “canopy omnivorous” (N = 33), “aquatic invertebrates consummers” and “piscivorous” (N = 31). Finally, with the current study, we aimed through a significative field effort bring a better knowledge about avifauna of PEIC, which could be a good base when is necessary take actions that aim to park management and the Conservation Unities around it.
Alternativas de Crescimento: a Alternativa de Fusões e Aquisições
Authors: ZILBER MOISES ARI , FISCHMANN ADALBERTO AMÉRICO , PIKIENY EUGEN ERICH
Published: January 2022

RESUMO O objetivo desse trabalho foi identificar os resultados da utilização da estratégia de F&A pela indústria de autopeças, com a finalidade de crescimento da empresa. Foram explorados os conceitos pertinentes à estratégia de F&A, considerando suas finalidades e avaliados os parâmetros de desempenho empresarial para a mensuração da sua eficácia como estratégia de crescimento. A investigação foi realizada por meio de um estudo exploratório, com base em pesquisa qualitativa, com a aplicação de entrevistas em profundidade em dez empresas de autopeças. Os dados obtidos foram codificados e categorizados, possibilitando a análise das relações entre a estratégia de F&A e os resultados produzidos no crescimento da empresa pesquisada. Os resultados da pesquisa de uma forma geral realçam o fato de que a ampliação do portfolio de produtos foi a maior preocupação das autopeças. Além disso, percebeu-se ainda um grande equilíbrio na corrida para conquistar market share ou lucratividade. As decisões de F&A das empresas passaram pela sua cultura. Aquelas que planejavam resultados de médio e longo prazos compraram empresas que lhes trouxeram market share e as que planejavam resultados de curto prazo, anuais, tiveram mais entusiasmo nas negociações que traziam a lucratividade imediata. Porém, segundo os entrevistados, a estratégia de aumentar o market share não seria produtiva, pois as montadoras de automóveis não aceitam a dependência de um fornecedor. É imperativo, segundo os executivos entrevistados, ser líder de mercado e ao mesmo tempo ser muito melhor que o concorrente.
Growth and gas exchange of soursop under salt stress and hydrogen peroxide application
Authors: Veloso Luana L. de S. A. , Silva André A. R. da , Lima Geovani S. de , Azevedo Carlos A. V. de , Gheyi Hans R. , Moreira Rômulo C. L.
Published: January 2022

ABSTRACT The cultivation of irrigated soursop in semiarid Northeastern Brazil highlights the need for information regarding its responses to the salinity of irrigation water and the use of techniques that allow its exploration, such as the use of hydrogen peroxide. Thus, the study aimed to evaluate the effect of soaking of seeds and foliar application of hydrogen peroxide on soursop plant growth and physiology under conditions of salt stress. The study was conducted in lysimeters in a greenhouse, and the treatments were distributed in a randomized block design and 4 × 4 factorial scheme, with four values of electrical conductivity of the irrigation water - ECw (0.7, 1.7, 2.7, and 3.7 dS m-1) and four concentrations of H2O2 (0, 25, 50, and 75 μM), with three replicates and one plant per plot. H2O2 concentrations were applied via seed imbibition and foliar spray. Irrigation with water from 0.7 dS m-1 impairs gas exchange and absolute growth rates of plant height and stem diameter and relative growth rate in height of soursop plants. Concentrations of 35, 33 and 23 µM of hydrogen peroxide favored the relative and absolute growth rates of plant height and transpiration, respectively. Compared to the aerial part, the root of soursop plants is more affected when irrigated with water from 1.6 dS m-1.
Estimation of percentage of impurities in coffee using a computer vision system
Authors: Costa Anderson G. , Silva Eudócio R. O. da , Barros Murilo M. de , Fagundes Jonatthan A.
Published: January 2022

ABSTRACT The quality and price of coffee drinks can be affected by contamination with impurities during roasting and grinding. Methods that enable quality control of marketed products are important to meet the standards required by consumers and the industry. The purpose of this study was to estimate the percentage of impurities contained in coffee using textural and colorimetric descriptors obtained from digital images. Arabica coffee beans (Coffea arabica L.) at 100% purity were subjected to roasting and grinding processes, and the initially pure ground coffee was gradually contaminated with impurities. Digital images were collected from coffee samples with 0, 10, 30, 50, and 70% impurities. From the images, textural descriptors of the histograms (mean, standard deviation, entropy, uniformity, and third moment) and colorimetric descriptors (RGB color space and HSI color space) were obtained. The principal component regression (PCR) method was applied to the data group of textural and colorimetric descriptors for the development of linear models to estimate coffee impurities. The selected models for the textural descriptors data group and the colorimetric descriptors data group were composed of two and three principal components, respectively. The model from the colorimetric descriptors showed a greater capacity to estimate the percentage of impurities in coffee when compared to the model from the textural descriptors.
Automation of the measurement of time record in determining the hydraulic conductivity of saturated soil
Authors: Cagna Camila P. , Guedes Filho Osvaldo , Silva Alexandre R. C. , Tormena Cássio A.
Published: January 2022

ABSTRACT The objective of this study was to automate the acquisition of water travel time, as well as the computation of hydraulic conductivity of saturated soil by the falling head method, using water sensors and the Arduino platform. To automate the measurement of travel time, the Arduino Uno board was used, and two water sensors were installed at the initial (h0) and final (h1) heights of the water inside the core. When the water flows across the soil and the water level passes the bottom part of the initial sensor (h0), the time recording starts; it ends when the water is absent from the final height of the second sensor (h1). The equation for calculating the hydraulic conductivity was inserted into the algorithm so the calculation was automatic. Undisturbed soil samples were taken in a long-term no-tillage area. There were no significant differences for the time and hydraulic conductivity means between the permeameters. The coefficient of the residual mass index showed an overestimation of the time variable; thus, the automated permeameter improves the precision of time recording and saturated hydraulic conductivity estimated by the falling head method.
Litterfall decomposition of coffee shaded with Tectona grandis or in full sun
Authors: Henrique Nirvani S. , Maltoni Katia L. , Faria Glaucia A.
Published: January 2022

ABSTRACT Litterfall is an important source of soil nutrients, but its decomposition can be affected by the crop system used. The objective of this study was to evaluate litterfall decomposition and macronutrient stocks in coffee crop systems in shaded (SHCS) environments and those in full sun (FSCS). The experiment was conducted on a rural property in Cacoal, state of Rondônia, Brazil, in a 2 × 6 factorial scheme with two crop systems (SHCS and FSCS), and six litterfall decomposition evaluation times (0, 30, 60, 180, 300, and 360 days after the litterfall was returned to the soil (DAL)), with seven replicates. The constant of decomposition (k), half-life time (t1/2) at 360 DAL, and phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), and nitrogen (N) concentrations of the remaining litterfall were determined at each evaluation time. The litterfall in the SHCS had a greater weight loss and constant of decomposition and a lower half-life time at the last evaluation, and the weight loss increased as a function of decomposition time. The litterfall stocks of macronutrients N, P, K, Ca, and Mg showed a linear decrease throughout the decomposition time, and increases in sulfur stock were found at the last evaluation.
Co-inoculation of Anabaena cylindrica and Azospirillum brasilense during initial growth and chloroplast pigments of corn
Authors: Matsuo Osvaldo , Zucareli Claudemir , Horácio Eduardo H. , Alves Luiz A. R. , Saab Otavio J. G. A.
Published: January 2022

ABSTRACT Although the isolated effects of the cyanobacteria Anabaena cylindrica and the bacteria Azospirillum brasilense are well-known, the co-inoculation of both can promote other benefits to corn plants’ biological nitrogen fixation and growth. The aim was to evaluate the initial growth and chloroplast pigment levels of corn hybrids co-inoculated with A. brasilense and A. cylindrica. The experiment was conducted in greenhouse conditions using the completely randomized design in a factorial scheme 2 × 4 with two hybrids, Balu 184 and Balu 280 Pro, and four inoculation treatments: no inoculation, inoculation of A. cylindrica, inoculation of A. brasilense, and the co-inoculation of A. cylindrica + A. brasilense. Co-inoculation resulted in higher root growth and dry mass of the aerial part in both hybrids; however, the hybrid Balu 280 Pro presented higher responsivity. The co-inoculation of A. brasilense and A. cylindrica increased initial corn growth without altering the photosynthetic pigment levels.
Weed interference in Marandu palisade grass pastures under renewal or maintenance conditions
Authors: Marchi Sidnei R. de , Marques Ricardo F. , Araújo Prissila P. dos S. , Silva Ilgner T. D. , Martins Dagoberto
Published: January 2022

ABSTRACT The presence of weeds as a consequence of pasture degradation is one of the main problems facing livestock worldwide. Thus, knowing the interference aspects and the appropriate time for weed management is essential for applying a particular control measure. This research aimed to study the weed interference on the morphostructural and nutritional quality of the Marandu palisade grass in conditions of renewal or maintenance of pasture. The experiments were conducted in a randomized block design, with four replicates and treatments consisted of eight growth periods of coexistence between Marandu palisade grass and weeds (0, 15, 30, 45, 60, 75, 90, and 120 days). Forage grass was characterized at the end of the experimental period, corresponding to 120 days of coexistence, and the main morphostructural and nutritional components were determined. Under the renewal or maintenance process, the weeds interfere in the morphostructural and nutritional quality of pasture areas with Marandu palisade grass. In vitro organic matter digestibility of Marandu palisade grass is negatively influenced by weeds, suggesting that control measures for renewal or maintenance areas should be adopted within 24 and 18 days of coexistence, respectively.
Green and sweet corn grown under different cover crops and phases of the no-tillage system
Authors: Nunes Diemisson O. , Favaro João H. de S. , Charlo Hamilton C. de O. , Loss Arcângelo , Barreto Antônio C. , Torres José Luiz R.
Published: January 2022

ABSTRACT Special corn is cultivated all year conventionally round; however, its productivity increases when grown under a no-tillage system (NTS). This study aimed to evaluate the agronomic performance of sweet and green corn cultivated under residues of different cover crops and the NTS implantation stages. Two experiments were carried out in the randomized block design, with four replications, in each of the three areas. The experiments consisted of evaluating the sweet and green corn, simultaneously, in three areas at different stages of development of NTS: initial (1 year), transition (7 years), and consolidation (19 years) with six types of cover crops: Signal grass (SG), Pearl millet (PM), Sunn hemp (SH), a mixture of SG + SH, SG + PM, and PM + SH. The dry matter (DM) production of the cover crops, the productivity of husked and unhusked ears, straw, and grain yield were evaluated. The SH had the highest dry mass production among the studied cover crops in all phases of the NTS. The phase of the NTS did not influence the productivity of ears with or without husk in green corn. The cultivation of sweet corn in transition and consolidation areas of the NTS showed better yields when compared to the initial phase of the system.
Elemental sulfur recommendation for pH reduction in soils from Southern Brazil
Authors: Dall’Orsoletta Daniel J. , Mumbach Gilmar L. , Brignoli Fernando M. , Gatiboni Luciano C.
Published: January 2022

ABSTRACT The elemental sulfur (S0) application may reduce soil pH, benefiting plants adapted to acid conditions and lessening problems of overliming. Nevertheless, there is no official recommendation for its application. The objective of the study was to quantify the S0 doses required to reduce the pH of soils from Southern Brazil. The experiment was carried out in the laboratory in a factorial scheme (5 × 5), with a completely randomized design and three replicates. The treatments consisted of five soils, and five doses of S0, corresponding to 0, 50, 100, 150, and 200% of the estimated dose need to reach pH 4.0. The applied doses of S0 resulted in reduction of pH and base saturation (V%) and increase of potential acidity (H + Al). These effects, however, were reduced due to the low rate of oxidation of the S0 applied (0.76-3.36%). The soil variables correlated with S0 oxidation were Mg2+ (0.86***), Al3+ (-0.82***), H + Al (-0.89***), V% (0.68***) and aluminum saturation (m%) (-0.87***). In the evaluated soils the oxidation of 50 kg ha-1 of S0 was required to reduce one unit of pH in H2O.
Evapotranspiration, crop coefficient and water use efficiency of onion cultivated under different irrigation depths
Authors: Matsunaga Wendy K. , Silva Vicente de P. R. da , Amorim Victória P. , Sales Eliton S. G. , Dantas Sílvia M. , Oliveira André B.
Published: January 2022

ABSTRACT This study aimed to determine crop evapotranspiration through the soil water balance, the crop coefficient and water use efficiency of the onion (Allium cepa L.) in a system with four irrigation regimes, cultivated in the semiarid region of northeastern Brazil. Two field experiments were carried out during the rainy and dry periods of the region in 2018, using the treatments of 100% (T1), 75% (T2), 50% (T3) and 25% (T4) of the reference evapotranspiration for daily water replacement and five replicates for each treatment. It was verified that crop evapotranspiration varies according to the water availability in the soil; however, the highest water use efficiency occurred for the T3 treatment. The T1 treatment obtained the highest estimated yield, 43.86 tons ha-1, while T4 obtained 13.47 tons ha-1, the lowest estimated yield among the treatments, and this difference was statistically significant (p ≤ 0.05) by F test. The crop coefficients obtained were 0.68, 0.89, 0.99 and 0.73 for the initial, vegetative, bulbing and maturation stages, respectively.
Automation of monitoring of drying parameters in hybrid solar-electric dryer for agricultural products
Authors: Paes Juliana L. , Ramos Vinícius de A. , Oliveira Marcus V. M. de , Pinto Marinaldo F. , Lovisi Thais A. de P. , Souza Wagner D. de
Published: January 2022

ABSTRACT Increasing the efficiency of solar dryers with ensuring that the system remains accessible to all users can be achieved with their automation through low-cost and easy-to-use technique sensors. The objective was to develop, implement and evaluate an automatic system for monitoring drying parameters in a hybrid solar-electric dryer (HSED). Initially, an automated data acquisition system for collecting the parameters of sample mass, air temperature, and relative air humidity was developed and installed. The automatic mass data acquisition system was calibrated in the hybrid solar-electric dryer. The automated system was validated by comparing it with conventional devices for measuring the parameters under study. The data obtained were subjected to analysis of variance, Tukey test and linear regression at p ≤ 0.05. The system to turn on/off the exhaust worked efficiently, helping to reduce the errors related to the mass measurement. The GERAR Mobile App showed easy to be used since it has intuitive icons and compatibility with the most used operating systems for mobile devices. The responses in communication via Bluetooth were fast. The use of Arduino, a low-cost microcontroller, to automate the monitoring activity allowed estimating the mass of the product and collecting the drying air temperature and relative air humidity data through the DHT22. This sensor showed a good correlation of mass and air temperature readings between the automatic and conventional system, but low correlation for relative air humidity. In general, the automatic data acquisition system monitored in real time the parameters for drying agricultural products in the HSED.
Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions
Authors: Silva Sheila D. P. da , Souza Gracielle P. de , Chaves Agnaldo R. de M. , Silva Marcelle A. da , Souza Rafaela R. de , Beckmann-Cavalcante Márkilla Z.
Published: January 2022

ABSTRACT Knowledge of how climatic conditions affect plant morphophysiology is essential for understanding how to manage the growth cycles of different crops. The aim of this study was to evaluate the effects of the growing seasons in a semi-arid area on the morphophysiological variables of ornamental sunflower plants. The experiment was carried out in a randomized block design in a split-plot arrangement with four replicates. Six cultivars (‘Bonito de Outono Sortido’, ‘Sol Noturno’, ‘Sol Vermelho’, ‘Jardim Amarelo Alto’, ‘Girassol F1 Sunbright Supreme’ and ‘Girassol F1 Vincents Choice’) were evaluated in the main plots and two different growing seasons (GS) in the subplots (GS1 - warm climate and GS2 - mild climate). Evaluations of gas exchange, chlorophyll indices, and leaf surface area were carried out at the reproductive stage (R5.5). The cultivation of ornamental sunflowers in semi-arid regions was significantly affected by the growing season. Changes in gas exchange variables and the morphophysiology of ornamental sunflower plants in the two growing seasons reflected the high phenotypic plasticity characteristic of this species. The cultivation of ornamental sunflowers under semi-arid conditions in the growing season, when air temperature and solar radiation are high, could be limited due to elevated transpiration rates. Therefore, it is recommended that they are grown mainly during the moderate climatic season in semi-arid regions.
Organomineral fertilizer as an alternative for increasing potato yield and quality
Authors: Ferreira Darlaine M. , Rebouças Tiyoko N. H. , Ferraz-Almeida Risely , Porto John S. , Oliveira Roberta C. , Luz José M. Q.
Published: January 2022

ABSTRACT Organomineral fertilizer has great potential to replace synthetic fertilizers. The goal of this study was to determine an optimal substitution rate of organomineral fertilizer for mineral fertilizer to increase potato yield and quality. The experimental design was a randomized complete block with four replicates and six treatments, namely four substitution rates of organomineral fertilizer application (25, 50, 75, and 100% of mineral fertilizer demand), one rate of mineral fertilizer application (100% of mineral fertilizer demand), and the control (no fertilizer application). The organomineral application rates were tested as an alternative to substitute 25 to 100% of mineral fertilizer. The potato yield (total and in-class) and quality and plant and soil nutrient contents were monitored. The pH and total soluble solid contents had positive correlations with yield. Potatoes accumulated higher contents of K > N > P in the leaves, stems, and tubers. The organomineral fertilizer application rate of 3.7 t ha-1 (equivalent to 100% of mineral fertilizer demand) was the optimal rate to increase potato yield and quality. Organomineral fertilizer is a viable alternative to increase potato quality and yield and to increase plant and soil nutrient contents.
Water salinity and air temperature on quail production and organ characteristics
Authors: Furtado Dermeval A. , Rodrigues Ladyanne R. , Rodrigues Valéria P. , Ribeiro Neila L. , Silva Rafael C. , Farias Soahd A. R.
Published: January 2022

ABSTRACT The supply of salt water in the semiarid region is a recurrent practice, as there is a severe shortage of water for use in animal consumption. Thus, most of the times the water offered to the birds can contain salts above the recommended amount. The present study aimed to evaluate the production performance and morphometry of the organs of Japanese quails as they were supplied with drinking water with different concentrations of sodium chloride, while being maintained in comfort and under thermal stress. The birds received water with increasing electrical conductivity (1.5, 3.0, 4.5 and 6.0 dS m-1) and were kept in a climate chamber at thermoneutral air temperature (24 °C) and under thermal stress (32 °C), being distributed in a completely randomized design and 2 × 4 factorial scheme. Water electrical conductivities did not affect the performance of the birds, except for the weight of the gizzard, which showed an increasing linear effect as the electrical conductivities increased. At the stress temperature, there was reduction in feed intake, egg weight and mass, and in feed conversion per dozen eggs, but with no effect on the weights of the heart, liver and gizzard. Japanese quails in the production phase can consume water with electrical conductivity of up to 6.0 dS m-1, showing good production performance and without compromising organ morphometry.
UTILIZAÇÃO DE UMA TÉCNICA RÁPIDA PARA O DIAGNÓSTICO DE MYCOBACTERIUM BOVIS EM AMOSTRAS DE LEITE EXPERIMENTALMENTE INOCULADAS
Authors: Dib C.C. , Morais Z.M. , Souza G.O. de , Amaku M. , Benites N.R. , Pinheiro S.R.
Published: January 2022

RESUMO O meio de Middlebrook 7H11 modificado foi comparado ao meio de Stonebrink, a fim de se avaliar a sensibilidade e o tempo de detecção de micobactérias em amostras de leite, experimentalmente inoculadas com Mycobacterium bovis (estirpe AN5), em uma diluição 10-2, e submetidas a duas diferentes técnicas de processamento: gordura (técnica 1) e sedimento (técnica 2), descontaminadas pelo método de Petroff modificado (adicionado de Tween 80), confrontadas com a técnica do leite total submetida ao método de Petroff tradicional. Os resultados destas técnicas (1 e 2) foram comparados entre si pelos testes não paramétricos de Wilcoxon e de MannWhitney e demonstraram que as técnicas 1 e 2 forneceram maior recuperação de micobactérias e proporção de cultivos positivos nos meios de Stonebrink e Middlebrook 7H11; o meio de Middlebrook 7H11 permitiu a visualização precoce das micobactérias, podendo ser utilizado como uma técnica de diagnóstico rápida da tuberculose bovina, em amostras de leite, para fins de vigilância epidemiológica.
QUALIDADE MICROBIOLÓGICA DA ÁGUA DO RIO SÃO LOURENÇO, SÃO LOURENÇO DO SUL, RIO GRANDE DO SUL
Authors: Vasconcellos F.C. da S. , Iganci J.R.V. , Ribeiro G.A.
Published: January 2022

RESUMO O Rio São Lourenço nasce no interior da cidade de São Lourenço do Sul, centro-sul do Rio Grande do Sul e desemboca na Laguna dos Patos, recebendo ao longo de seu percurso resíduos agrícolas e efluentes domésticos sem tratamento prévio. Com o objetivo de analisar a qualidade microbiológica da água desse rio, foram coletadas amostras de três pontos pré-estabelecidos, entre maio de 2004 a abril de 2005. Para a análise microbiológica, os meios de cultura utilizados foram o caldo lactosado (CL) para o teste presuntivo, caldo lactose bile verde brilhante (CLBVB) para o teste confirmativo de coliformes totais (CT) e o caldo EC para o teste confirmativo de coliformes termotolerantes. Com os resultados obtidos constatou-se que todos os pontos estavam impróprios para balneabilidade devido à alta contaminação por coliformes totais e termotolerantes, em 93% das amostras analisadas.
FOTOSSENSIBILIZAÇÃO EM ANIMAIS DE PRODUÇÃO NA REGIÃO SEMI-ÁRIDA DO RIO GRANDE DO NORTE
Authors: Macedo M.F. , Bezerra M.B. , Soto Blanco B.
Published: January 2022

RESUMO O presente trabalho objetivou estudar a ocorrência de surtos naturais de fotossensibilização que vêm ocorrendo em diversas espécies animais na região semi-árida do Estado do Rio Grande do Norte. Foram visitadas 17 propriedades nas quais estavam ocorrendo casos naturais desta patologia. Foram realizadas entrevistas com os tratadores, exames clínicos e provas séricas bioquímicas de função hepática nos animais afetados. Também foram realizadas avaliações das pastagens para busca de plantas suspeitas de causarem a doença. Essasa mostras foram testadas para detecção preliminar de saponinas. Foi verificado que a fotossensibilização é do tipo secundária (hepatógena) e as espécies mais acometidas são a eqüina e a bovina, mas também ocorre em ovinos, caprinos e asininos. Além disto, parece não haver variação na susceptibilidade entre as diferentes faixas etárias, mas há uma sazonalidade na ocorrência da fotossensibilização, ocorrendo no período final da estação das chuvas. A possível etiologia é a planta conhecida popularmente como ervanço (Floehlichia humboldtiana), a única com alta prevalência em todos os locais afetados e contêm saponinas.
ARTRÓPODES ASSOCIADOS A MUDAS DE PEQUIZEIRO
Authors: Leite G.L.D. , Veloso R.V.S. , Redoan A.C. , Lopes P.S.N. , Machado M.M.L.
Published: January 2022

RESUMO O objetivo deste trabalho foi avaliar os insetos fitófagos e os inimigos naturais presentes em mudas de pequizeiro Caryocar brasiliense Cambess.(Caryocaraceae). Detectou-se na face abaxial das folhas apicais maior número de pulgões Aphis gossypii Glover, 1877 (Hemiptera: Aphididae) e de formigas Crematogaster sp. (Hymenoptera: Formicidae), enquanto na face adaxial desta predominaram galhas de Eurytoma sp. (Hymenoptera: Eurytomidae). Observaram-se também que os pulgões foram afetados positivamente por Crematogaster sp., umidade relativa e temperatura e negativamente por chuva. Já Eurytoma sp. possui interação positiva com altura de planta, Crematogaster sp. e umidade relativa.
MIGDOLUS FRYANUS (WESTWOOD, 1863) (COLEOPTERA: VESPERIDAE): PRAGA DA CULTURA DE CANA-DE-AÇÚCAR
Authors: Machado L.A. , Habib M.
Published: January 2022

RESUMO Migdolus fryanus (Westwood, 1863) (Coleoptera: Vesperidae) é um besouro que ataca as raízes e o rizoma da cana-de-açúcar, ocasionando sérios prejuízos aos canaviais, principalmente, no Estado de São Paulo. As larvas são difíceis de serem controladas em função do comportamento subterrâneo e da profundidade que podem atingir em determinadas épocas do ano. É um inseto de ciclo longo e que apresenta revoada dos adultos para o acasalamento, após as chuvas do mês de outubro. Atualmente, para o controle desse inseto, alguns produtores de cana realizam um monitoramento por meio de armadilhas contendo feromônio sexual para localizar as áreas infestadas e, posteriormente, aplicar inseticidas no sulco, na época do plantio (cana planta), ou nos lados da linha após a colheita da cana (cana soca). Esta revisão enfoca estudos sobre os aspectos biológicos e comportamentais de M. fryanus.