Search | SciELO

ABSTRACT This study investigated the effectiveness of using the X-ray technique to assess the viability of papaya seeds. The X-ray images were performed in eight replicates of 25 seeds, placed on transparent acrylic plates on double-sided adhesive tape, previously identified, and then submitted to radiation in X-ray equipment "HP Faxitron". After exposure to X-ray radiation, the seeds were submitted to the germination test in rolls of germitest paper and kept in a germination chamber at 20-30 °C for 30 days. Seedlings were photographed and evaluated as normal seedlings, abnormal and non-germinated seeds. Afterward, the X-ray images and the seedlings from the same seeds were visually compared, and the X-ray images clearly showed seeds with and without internal filling. All abnormal seedlings were full seeds; therefore, X-ray images were not able to separate normal and abnormal. A 100% accuracy was verified by comparing the X-ray images and their respective seedlings, full seeds originated normal or abnormal seedlings, and empty seeds corresponded to non-germinated seeds. Therefore, using X-ray images is a promising technique to identify the viability of papaya seeds. The automated analysis of X-ray images is a simple, fast, and efficient technique to provide information on seed viability and generate parameters related to their germination capacity.

https://doi.org/10.5935/1806-6690.20240021

Reduction of antimicrobial treatment time in intensive care units in Fortaleza, Brazil
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Almeida-Bastos, Angelina

; Figueiredo-Chaves, Elana

; Almeida-Bastos, Maria Luiza

; Suellen-Pereira, Bruna

; de Souza-Cavalcante, Márcio

; Lopes-Campos-e Reis, Henry Pablo

; Martins-de Alcântara Neto, José

; Cavalcante-de Andrade, Cinthya

Ars Pharmaceutica (Internet)

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2023, Volume 64 N. 3 Pages 243 - 255

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract Objective: To evaluate the application of the Antimicrobial (ATM) treatment time reduction strategy in Intensive Care Units (ICU) in an Antimicrobial Stewardship Program (ASP). Method: This is a descriptive and cross-sectional study, carried out in two ICU of a university hospital in Fortaleza, Brazil, from January/2017 to January/2019. Adult patients were included, accompanied by a pharmacist, and using ATM, in which the treatment time reduction strategy was applied. The evaluation of the strategy was made through the difference between the predicted time established at the beginning of the treatment and the effective days of use of each ATM. Results: Of the 100 patients included, 51.0 % were male and 64.0 % were elderly. The respiratory system was the most frequently affected by the infections (37.4 %) and the most prevalent classes of ATM were carbapenems (23.0 %) and glycopeptides (20.1 %). There was a decrease from 831 unnecessary days of antimicrobial therapy and from an average of 13.7 to 8.9 days of treatment. The greatest reductions in days were observed for meropenem, with 202 days reduced. The study also allowed the identification of associations between the reduction > 8 days of treatment and the variables length of stay > 22 days and patients in exclusive palliative care, and associations between hospital discharge and reductions of up to 7 days of therapy. Conclusions: The data obtained suggest that the presence of an ASP influences the practices of ATM use and its treatment time and emphasize the role of pharmaceutical professionals in these programs.

Resumen Objetivo: Evaluar la aplicación de la estrategia reducción del tiempo de tratamiento Antimicrobiano (ATM) en Unidades de Cuidados Intensivos (UCI) en un Programa Stewardship de Antimicrobiano (ASP). Método: Este es un estudio descriptivo y transversal, realizado en dos UCI de un hospital universitario de Fortaleza, Brasil, de enero/2017 a enero/2019. Se incluyeron pacientes adultos, acompañados por un farmacéutico y utilizando ATM, en los que se aplicó la estrategia de reducción del tiempo de tratamiento. La evaluación de la estrategia se realizó a través de la diferencia entre el tiempo previsto establecido al inicio del tratamiento y los días efectivos de uso de cada ATM. Resultados: De los 100 pacientes incluidos, 51,0 % eran del sexo masculino y 64,0 % ancianos. El sistema respiratorio fue el más frecuentemente afectado (37,4 %) y las clases de ATM más prevalentes fueron los carbapenémicos (23,0 %) y los glicopéptidos (20,1 %). Hubo una disminución de 831 días innecesarios de terapia antimicrobiana y de un promedio de 13,7 a 8,9 días de tratamiento. Las mayores reducciones en días se observaron para meropenem, con 202 días reducidos. El estudio también permitió identificar asociaciones entre la reducción > 8 días de tratamiento y las variables estancia > 22 días y pacientes en cuidados paliativos exclusivos; y asociaciones entre alta hospitalaria y reducciones de hasta 7 días de terapia. Conclusiones: Los datos obtenidos sugieren que la presencia de un ASP influye en las prácticas de uso de ATM y su tiempo de tratamiento y enfatizan el papel de los profesionales farmacéuticos en estos programas.

https://doi.org/10.30827/ars.v64i3.27830

Morpho-physiological characterization of germination in Senna siamea
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Francisco Eudes da

; Pereira, Márcio Dias

; Nicolau, Josefa Patrícia Balduíno

; Felix, Francival Cardoso

; Santos, Gean Carlos da Silva

; Araújo, Jayane Karine Pereira de

; Almeida, Robevania da Silva Alves

; Bruno, Riselane de Lucena Alcântara

Revista Ciência Agronômica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 54 elocation e20228425

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Estabelecer os procedimentos adequados para condução do teste de germinação em espécies florestais é importante para viabilizar a comercialização de lotes de sementes, sobretudo para espécies que ainda não constam nas Instruções Normativas. Objetivou-se com este estudo determinar as condições ideais de temperatura e substrato para a realização do teste de germinação de sementes de Senna siamea, bem como: (i) caracterizar a morfo-fisiologia do estabelecimento da plântula, (ii) o período para a avaliação das plântulas, e (iii) validar a eficiência da metodologia em 10 lotes de sementes. O delineamento utilizado foi inteiramente ao acaso em arranjo fatorial 2 x 2 (temperaturas x substratos) com 12 repetições de 50 sementes para cada tratamento. Para a avaliação dos diferentes lotes, os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Scott-Knott ao nível de 5% de probabilidade. Avaliou-se o percentual e a velocidade de germinação, primeira contagem, comprimento de plântulas, germinação acumulada, e morfologia de plântulas. Sementes de S. siamea possuem maior potencial germinativo em substrato rolo de papel sob temperaturas de 25 e 30 °C (86% e 87%). A primeira contagem de germinação e avaliação final de plântulas deve ser feita aos 15 e 21 dias após a semeadura, respectivamente. A espécie possui germinação do tipo epígea e suas plântulas são fanerocotiledonares. Observou-se que as condições de execução e avaliação do teste de germinação recomendadas neste estudo são adequadas na avaliação de lotes de sementes de S. siamea.

ABSTRACT Establishing the appropriate procedures for conducting germination tests in forest species is important for marketing the seeds, especially species that are not yet included in the relevant Normative Instructions. The aim of this study was to determine the ideal conditions of temperature and substrate to carry out the germination test on seeds of Senna siamea, as well as: (i) to characterise the morpho-physiology of seedling establishment, (ii) the period for seedling evaluation, and (iii) validate the efficiency of the methodology in 10 batches of seeds. The experimental design was completely randomised in a 2 x 2 factorial scheme (temperatures x substrates), with 12 replications of 50 seeds in each treatment. To evaluate the different batches, the data were submitted to analysis of variance, and the mean values compared by the Scott-Knott test at 5% probability. The percentage and speed of germination, first count, seedling length, accumulated germination, and seedling morphology were evaluated. The germination potential of S. siamea seeds is greater on paper-roll substrate at temperatures of 25 °C and 30 °C (86% and 87%). The first germination count and final seedling evaluation should be carried out 15 and 21 days after sowing, respectively. The species has epigeal germination and the seedlings are phanerocotyledonous. It was found that the method for carrying out and evaluating the germination test recommended in this study is suitable for evaluating batches of S. siamea seeds.

https://doi.org/10.5935/1806-6690.20230007

Impact of maternal protein supplementation during mid or late gestation on skeletal muscle energy metabolism of beef calves
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Sanglard, Letícia Maria Pereira

; Marquez, David Esteban Contreras

; Silva, Walmir

; Santos, Marta Maria dos

; Costa, Thaís Correia

; Valente Junior, Dante Teixeira

; Gionbelli, Mateus Pies

; Serão, Nick Vergara Lopes

; Sampaio, Claudia Batista

; Duarte, Marcio de Souza

Ciência Rural

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 53 N. 7 elocation e20210917

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: O objetivo deste estudo foi avaliar o efeito da suplementação proteica materna sobre o metabolismo energético do músculo esquelético de bezerros de corte. Dezesseis matrizes gestantes foram divididas em três grupos: CONTROLE (não suplementado); MÉDIO (suplementados entre 30 e 180 dias de gestação); e FINAL (suplementado entre 181 e 281 dias de gestação). O suplemento continha 30% de proteína bruta e foi fornecido em quantidades totais iguais aos tratamentos. Trinta dias após o nascimento, amostras de sangue e músculo dos bezerros foram coletadas para análises de expressão gênica, abundância de proteínas e metabólitos. Não foram observadas diferenças (P ≥ 0,15) no peso ao nascimento ou parâmetros de desempenho ao desmame, bem como na expressão dos genes avaliados (P ≥ 0,21). Os bezerros nascidos de matrizes do tratamento CONTROLE apresentaram menor proporção (P = 0,03) de proteína p-AMPK/AMPK no músculo esquelético. Os bezerros nascidos de matrizes do tratamento MÉDIO apresentaram concentração de glicose menor (P = 0,04) do que aqueles nascidos de matrizes do tratamento FINAL. Os resultados observados indicam que a ausência de suplementação proteica em matrizes gestantes pode alterar o metabolismo energético da progênie e refletir em uma inflexibilidade metabólica, a qual pode ocasionar limitações quanto à eficiência energética do tecido muscular esquelético e consequentemente, limitar o desempenho da progênie ao longo da fase pós-natal.

ABSTRACT: This study evaluated the effect of maternal protein supplementation during mid or late gestation on energy metabolism of the skeletal muscle of beef calves. Sixteen pregnant cows were divided into 3 groups: CTRL (not supplemented); MID (supplemented from 30 to 180 days of gestation); and LATE (supplemented from 181 to 281 days of gestation). The supplement contained 30% crude protein. Thirty days after birth, blood and muscle samples of the calves were collected for analyses of gene expression, proteins, and metabolites. No differences (P ≥ 0.15) in birth weight, performance at weaning, or muscle expression of the genes evaluated (P ≥ 0.21) were observed. Calves born to CTRL cows had a lower ratio (P = 0.03) of p-AMPK/AMPK protein in the skeletal muscle. Calves born to MID cows had lower (P = 0.04) glucose concentration than those born to LATE cows. Changes in p-AMPK/AMPK protein, indicated a possible metabolic inflexibility in the skeletal muscle of calves born to CTRL cows. These results indicated that lack of protein supplementation in pregnant cows alter the energy metabolism of their calves and reflect in a metabolic inflexibility.

https://doi.org/10.1590/0103-8478cr20210917

PARTIAL HEPATECTOMY USING LINEAR CUTTER STAPLER: ARE THERE ADVANTAGES?
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

CHEDID, Marcio Fernandes

; BRUM, Pietro Waltrick

; GREZZANA-FILHO, Tomaz de Jesus Maria

; SILVA, Rafaela Kathrine da

; PEREIRA, Pedro Funari

; CHEDID, Aljamir Duarte

; KRUEL, Cleber Rosito Pinto

ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 36 elocation e1775

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT BACKGROUND: Morbidity of liver resections is related to intraoperative bleeding and postoperative biliary fistulas. The Endo-GIA stapler (EG) in liver resections is well established, but its cost is high, limiting its use. The linear cutting stapler (LCS) is a lower cost device. AIMS: To report open liver resections, using LCS for transection of the liver parenchyma and en bloc stapling of vessels and bile ducts. METHODS: Ten patients were included in the study. Four patients with severe abdominal pain had benign liver tumors (three adenomas and one focal nodular hyperplasia). Among the remaining six patients, four underwent liver resection for the treatment of colorectal liver metastases, three of which had undergone preoperative chemotherapy. The other two cases were one patient with metastasis from a testicular teratoma and the other with metastasis from a gastrointestinal neuroectodermal tumor. RESULTS: The average length of stay was five days (range 4–7 days). Of the seven patients who underwent resections of segments II/III, two presented postoperative complications: one developed a seroma and the other a collection of abdominal fluid who underwent percutaneous drainage, antibiotic therapy, and blood transfusion. Furthermore, the three patients who underwent major resections had postoperative complications: two developed anemia and received blood transfusions and one had biloma and underwent percutaneous drainage and antibiotic therapy. CONCLUSIONS: The use of the linear stapler in hepatectomies was efficient and at lower costs, making it suitable for use whenever EG is not available. The size of the LCS stapler shaft is more suitable for en bloc transection of the left lateral segment of the liver, which is thinner than the right one. Further studies are needed to evaluate the safety of LCS for large liver resections and resections of tumors located in the right hepatic lobe.

RESUMO RACIONAL: A morbidade das ressecções hepáticas está relacionada a sangramento intraoperatório e fístulas biliares pós-operatórias. O grampeador Endo-GIA (EG) em ressecções hepáticas está bem estabelecido, mas o seu custo é elevado, limitando seu uso. O grampeador de corte linear (LCS) é um dispositivo com menor custo. OBJETIVOS: Relatar ressecções hepáticas abertas, empregando o LCS para transecção do parênquima hepático e grampeamento em bloco de vasos e ductos biliares. MÉTODOS: Dez pacientes foram incluídos no estudo. Quatro pacientes com dor abdominal importante apresentavam tumores hepáticos benignos (três adenomas e um hiperplasia nodular focal). Dentre os demais seis pacientes, quatro foram submetidos à ressecção hepática para o tratamento de metástases hepáticas colorretais, sendo que três deles haviam sido submetidos à quimioterapia pré-operatória. Os dois outros casos foram um paciente com metástase de teratoma testicular e o outro com metástase de tumor neuroectodérmico gastrointestinal. RESULTADOS: O tempo médio de internação foi de 5 dias (variação=4-7 dias). Dos sete pacientes submetidos a ressecções dos segmentos II/III, dois apresentaram complicações pós-operatórias: um paciente desenvolveu seroma e o outro uma coleção de fluido abdominal submetido a drenagem percutânea, antibioticoterapia e transfusão de sangue. Além disso, os três pacientes submetidos a ressecções maiores tiveram complicações pós-operatórias: dois pacientes desenvolveram anemia e receberam transfusões de sangue e um paciente apresentou biloma e foi submetido a drenagem percutânea e antibioticoterapia. CONCLUSÕES: O emprego do grampeador linear nas hepatectomias foi eficiente e a custos mais baixos, tornando-o adequado para uso sempre que EG não estiver disponível O tamanho da haste do grampeador LCS é mais adequado para a transecção em bloco do segmento lateral esquerdo do fígado, que é mais fino que o direito. Novos estudos são necessários para avaliar a segurança do LCS para grandes ressecções hepáticas e ressecções de tumores localizados no lobo hepático direito.

https://doi.org/10.1590/0102-672020230057e1775

Morphophysiological and biochemical changes in Enterolobium contortisiliquum seedlings under abiotic stresses
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ferreira, Adriana dos Santos

; Leal, Caio César Pereira

; Leite, Moadir de Sousa

; Benedito, Clarisse Pereira

; Dutra, Alek Sandro

; Alves, Charline Zaratin

; Morais, Elis Regina Costa de

; Pereira, Márcio Dias

; Porceddu, Marco

; Bacchetta, Gianluigi

; Torres, Salvador Barros

Revista Ciência Agronômica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 54 elocation e20218621

Abstract: En | Text: En | PDF: En

ABSTRACT Among the main problems that compromise the development of forest species are water and salt stresses, especially in the early stages of development, when seedlings are more sensitive. Thus, the objective of this study was to evaluate the morphophysiological and biochemical changes in Enterolobium contortisiliquum seedlings subjected to abiotic stresses. The experimental design was randomized complete blocks (RCB), composed of five treatments, with four replicates, and the experimental plot consisted of twenty plants. From the 31st day after sowing, when the seedlings reached approximately 15 cm in height, they began to receive the treatments, which consisted of different levels of electrical conductivity of irrigation water (0.3; 2; 4; 6; 8 dS m-1) for salt stress and periods of water restriction (0; 4; 8; 12 and 16 days without irrigation) for water stress. The traits evaluated were: plant height, root length, stem diameter, number of leaves, leaf area, total dry matter, Dickson quality index, height/shoot dry matter ratio, total soluble sugars, starch, total amino acids and proline. An increase in the electrical conductivity of irrigation water and days without irrigation compromised the development of E. contortisiliquum seedlings, which was intensified from 2 dS m-1 and four days without irrigation for salt and water stresses, respectively. The mechanism of survival of E. contortisiliquum to abiotic stresses involves reduction in the growth and quality of seedlings, with activation of biochemical defense mechanisms of the species.

https://doi.org/10.5935/1806-6690.20230037

Primary root emission as a vigor test in soybean seeds
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Rego, Carlos Henrique Queiroz

; Brito, Douglas Leite de

; Torres, Salvador Barros

; Morais, Elis Regina Costa de

; Pereira, Marcio Dias

; Dutra, Alek Sandro

; Bacchetta, Gianluigi

; Alves, Charline Zaratin

Revista Ciência Agronômica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 54 elocation e20238714

Abstract: En | Text: En | PDF: En

ABSTRACT The objective was to verify if the primary root emission can be recommended as a vigor test for soybean seeds. For this, five lots of varieties ANTA 82, NA7337 and BRS1074IPRO were evaluated by first count, germination, emergence, emergence speed index and tetrazolium tests. In the root protrusion test at 20, 25 and 30 ºC, two evaluation criteria were adopted: primary root emission precocity index (PREPI) and percentage of seeds that emitted the primary root (PRE). The seeds counted were those with a primary root equal to or greater than 2 mm, every 12 h from the installation of the test until 120 h. The design was completely randomized and means were compared, within each evaluation time, using the Scott-Knott test at 5% probability. Pearson’s linear correlation was performed for PREPI and PRE with emergence. PREPI was not considered efficient. For the PRE, at 20 ºC, there was a correlation at 72 h, for the three varieties. At 25 ºC there was a correlation for a period of 36 h for ANTA 82 and NA7337 and 60 h for BRS1074IPRO. At 30 ºC there was a correlation in the time of 36 h for the three cultivars. Considering that speed in obtaining results is important in vigor tests, it is concluded that primary root emission for 36 h after installing the test at 30 ºC is recommended as a vigor test in the quality control of soybean seeds.

https://doi.org/10.5935/1806-6690.20230051

VEGETATIVE RESCUE AND PROPAGATION OF NATIVE Ilex paraguariensis POPULATIONS IN SANTA CATARINA STATE, BRAZIL
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Nascimento, Bruno

; Sá, Alexandra Cristina Schatz

; Corrêa, Bruno Jan Schramm

; Schilisting, Thalia

; Pereira, Mariane de Oliveira

; Navroski, Marcio Carlos

; Mantovani, Adelar

Revista Árvore

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 47 elocation e4710

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT When producing Ilex paraguariensis seedlings through vegetative propagation, selecting the correct populations and genotypes, and obtaining juvenile material, may be fundamental for its success. Therefore, this search aimed to test its vegetative propagation through cutting and rescue using detached branches of different populations in Santa Catarina state, Brazil. Thus, two experiments were installed in September 2019 in order to test: I) the cuttings of four populations belonging to the municipalities of Catanduvas (CT), Painel (PL), Três Barras (TB), and Urupema (UR), using ten randomly chosen genotypes from each, and; II) the epicormic sprouting of detached branches from these same populations. Both experiments were carried out in Lages, Santa Catarina. In February 2020, the cutting was evaluated according to the percentages of survival, callus, rooting, new sprouts, and original leaves permanence. The branches were evaluated every 30 days after storing, observing the percentages of sprouting branches, number of sprouts, and length of sprouts in centimeters. As for cutting, there was a low survival percentage in all populations (<15%), but some genotypes presented greater vigor, such as TB1 (46%), TB7, and TB3 (both 28%). Most live cuttings presented calluses (>70%), characteristic of material of high maturity. Rooting was low for populations (<1.5%) and genotypes (<10%). Branches presented sprouts up to 60 days, with TB presenting the highest total number of sprouts (approximately 300) and the greatest average length (2.8 cm). In general, survival and rooting of cuttings were affected by both populations and genotypes, highlighting TB. A similar response was observed for the branches’ sprouting. New studies with more populations, further analyses of the branches’ characteristics, and better storage conditions are recommended.

RESUMO Quando produzidas mudas de Ilex paraguariensis através da propagação vegetativa, a seleção correta das populações, genótipos, e ser capaz de obter material juvenil, são fundamentais para seu sucesso. Assim, o objetivo desta pesquisa foi testar sua propagação vegetativa por estaquia e resgate utilizando galhos destacados de diferentes populações do estado de Santa Catarina, Brasil. Desta forma, dois experimentos foram instalados em setembro de 2019 para testar: I) a estaquia de quatro populações, pertencentes aos municípios de Catanduvas (CT), Painel (PL), Três Barras (TB) e Urupema (UR), utilizando dez genótipos escolhidos aleatoriamente de cada, e; II) a brotação epicórmica de galhos destacados destas mesmas populações. Ambos os experimentos foram conduzidos em Lages, Santa Catarina. Em fevereiro de 2020, a estaquia foi avaliada de acordo com as porcentagens de: sobrevivência, calos, enraizamento, novas brotações e permanência das folhas originais. Os galhos foram avaliados a cada 30 dias após seu acondicionamento observando as porcentagens de galhos com brotações, número de brotações e comprimento em centímetros. Para a estaquia, houve baixa sobrevivência em todas as populações (<15%), mas com maior vigor em alguns genótipos, tais como TB1 (46%), TB7 e TB3 (ambos 28%). A maior parte das estacas vivas apresentou calo, característico de material de elevada maturidade. O enraizamento foi baixo nos níveis de população (<1,5%) e genótipo (<10%). Os galhos apresentaram brotações até 60 dias, com TB apresentando o maior número total de brotações (aproximadamente 300) e de maior comprimento médio (2,8 cm). Em termos gerais, a sobrevivência e o enraizamento de estacas foram afetados por ambos população e genótipo, destacando-se TB. Uma resposta similar foi observada para a brotação de galhos. Novos estudos contendo mais populações, análises mais aprofundadas das características dos galhos e melhores condições de acondicionamento são recomendadas..

https://doi.org/10.1590/1806-908820230000010

A condição climática de origem das árvores afeta a incidência de fungos e a qualidade de sementes de Pityrocarpa moniliformis?
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Felix, Francival Cardoso

; Demartelaere, Andréa Celina Ferreira

; Medeiros, Josenilda Aprígio Dantas de

; Pacheco, Mauro Vasconcelos

; Pereira, Márcio Dias

Ciência Florestal

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 33 N. 2 elocation e71378

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The fungi presence during seed maturation and dispersion is related to biotic and abiotic factors. These microorganisms can cause loss seeds physiological quality in unfavorable climatic conditions. We hypothesize that sanitary quality of seeds produced is affected by tree and origin climatic condition. The aim was evaluated fungi incidence and seeds quality of Pityrocarpa moniliformis from different trees and two climatic conditions (Aw: rainy tropical; and BSh: warm semiarid). We collected seeds from 28 parent trees, evaluating separately the physiological and sanitary quality of the seeds produced in each tree. Different trees originated seeds with differences in physiological quality and fungi incidence. The climatic condition of the trees' origin affected the amount and fungi species present in the seeds produced, with a predominant incidence of the genera Alternaria spp., Aspergillus spp., Botrytis spp., Fusarium spp., Penicillium spp. and Rhyzopus sp. The Alternaria spp. incidence is correlated with seeds of low physiological quality. Therefore, we conclude that Pityrocarpa moniliformis trees under a tropical rainy climate produce seeds with superior physiological and sanitary quality compared to those located in a warm semiarid climate.

RESUMO A presença de fungos potencialmente prejudiciais durante a maturação e dispersão das sementes tem relação com fatores bióticos e abióticos. Esses microrganismos podem causar perda da qualidade fisiológica de sementes em condições climáticas desfavoráveis. Nesta pesquisa, levantou-se a hipótese de que a qualidade sanitária das sementes produzidas é afetada pela árvore e condição climática de origem. Assim, objetivou-se avaliar a incidência de fungos e a qualidade de sementes de Pityrocarpa moniliformis provenientes de diferentes árvores e duas condições climáticas (Aw: tropical chuvoso; e BSh: semiárido quente). Coletaram-se sementes de 28 árvores, avaliando-se separadamente a qualidade fisiológica e sanitária das sementes produzidas em cada árvore. Diferentes árvores originaram sementes com diferenças na qualidade fisiológica e incidência de fungos. A condição climática de origem das árvores afetou a quantidade e a espécie fúngica presente nas sementes produzidas, com incidência predominante dos gêneros Alternaria spp., Aspergillus spp., Botrytis spp., Fusarium spp., Penicillium spp. e Rhyzopus sp, sendo a incidência de Alternaria spp. correlacionada com sementes de baixa qualidade fisiológica. Portanto, conclui-se que árvores de Pityrocarpa moniliformis sob clima tropical chuvoso produzem sementes de qualidade fisiológica e sanitária superior em relação àquelas localizadas em clima semiárido quente.

https://doi.org/10.5902/1980509871378

10.

Atualização da Recomendação para Avaliação da Doença das Artérias Carótidas e Vertebrais pela Ultrassonografia Vascular: DIC, CBR, SBACV – 2023
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Albricker, Ana Cristina Lopes

; Freire, Claudia Maria Vilas

; Santos, Simone Nascimento dos

; Alcantara, Monica Luiza de

; Cantisano, Armando Luis

; Porto, Carmen Lucia Lascasas

; Amaral, Salomon Israel do

; Veloso, Orlando Carlos Glória

; Morais Filho, Domingos de

; Teodoro, José Aldo Ribeiro

; Petisco, Ana Cláudia Gomes Pereira

; Saleh, Mohamed Hassan

; Barros, Marcio Vinícius Lins de

; Barros, Fanilda Souto

; Engelhorn, Ana Luiza Dias Valiente

; Engelhorn, Carlos Alberto

; Nardino, Érica Patrício

; Silva, Melissa Andreia de Moares

; Biagioni, Luisa Ciucci

; Souza, Adriano José de

; Sarpe, Anna Karina Paiva

; Oliveira, Arthur Curtarelli de

; Moraes, Marcelo Rodrigo de Souza

; Francisco Neto, Miguel José

; Françolin, Peter Célio

; Rochitte, Carlos Eduardo

; Iquizli, Rogerio

; Santos, Alair Augusto Sarmet Moreira Damas dos

; Muglia, Valdair Francisco

; Naves, Bruno de Lima

Arquivos Brasileiros de Cardiologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 120 N. 10 elocation e20230695

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

https://doi.org/10.36660/abc.20230695

11.

Análisis de la DG en una red eléctrica en Angola basado en el sistema IEEE 14-bus
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Dias Pereira, Priscila

; Zamboti Fortes, Marcio

; Ary Francisco, Delcio

; Gomes Jr., Sergio

Ingeniería Energética

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2022, Volume 43 N. 2 Pages 79 - 89

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Distributed Generation (DG) has become the main investment of power systems worldwide. This work analyzes the impact of DG on a power system in Angola based on the IEEE 14-bus test, using Matlab/Simulink software. As a result, it was noticed that, despite the increase in the generation capacity, DG causes changes in the voltage of the cutting system due to the change in the active and reactive flows. The critical situation is detected when there is maximum generation in scattering with minimum load, and unbalanced changes may occur in the shear levels of the bars, as well as influencing the recovery of the system when subject to a contingency situation. This work aims to provide initial studies on the impact caused by the introduction of DG in Angola, to show the need to prepare the system to receive this new technology in collaboration with the development of the country.

RESUMEN La Generación Distribuida (DG) se convirtió en la principal inversión de los sistemas energéticos en todo el mundo. Los estudios que se aplican en DG a los países subdesarrollados han demostrado la importancia de aportar soluciones y fomentar el uso de energías renovables a pequeña escala, minimizando las pérdidas en la red energética además de aumentar la seguridad energética a través de la diversificación de las fuentes de generación. Por lo tanto, este trabajo analiza el impacto de DG en un sistema energético real en Angola basado en la prueba IEEE 14-bus, utilizando el software Matlab / Simulink, realizando el análisis del sistema con el apalancamiento de DG, principalmente en situaciones de contingencia. Como resultado se observó que, a pesar de proporcionar un aumento en la capacidad de generación, el inserto DG en la red de distribución provoca cambios en el voltaje del sistema de corte debido al cambio en los flujos activos y reactivos. La situación crítica se detecta cuando hay máxima generación en propagación con carga mínima, pueden producirse modificaciones desequilibradas en los niveles de bus de corte, así como influir en una recuperación del sistema cuando se encuentra en una situación de contingencia. Este documento tiene el objetivo de proporcionar estudios iniciales sobre el impacto causado por la introducción de DG en un sistema energético en Angola, para mostrar las necesidades de preparar el sistema para recibir esta nueva tecnología en colaboración con el desarrollo del país.

12.

Diretriz Conjunta sobre Tromboembolismo Venoso – 2022
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Albricker, Ana Cristina Lopes

; Freire, Cláudia Maria Vilas

; Santos, Simone Nascimento dos

; Alcantara, Monica Luiza de

; Saleh, Mohamed Hassan

; Cantisano, Armando Luis

; Teodoro, José Aldo Ribeiro

; Porto, Carmen Lucia Lascasas

; Amaral, Salomon Israel do

; Veloso, Orlando Carlos Gloria

; Petisco, Ana Cláudia Gomes Pereira

; Barros, Fanilda Souto

; Barros, Márcio Vinícius Lins de

; Souza, Adriano José de

; Sobreira, Marcone Lima

; Miranda, Robson Barbosa de

; Moraes, Domingos de

; Verrastro, Carlos Gustavo Yuji

; Mançano, Alexandre Dias

; Lima, Ronaldo de Souza Leão

; Muglia, Valdair Francisco

; Matushita, Cristina Sebastião

; Lopes, Rafael Willain

; Coutinho, Artur Martins Novaes

; Pianta, Diego Bromfman

; Santos, Alair Augusto Sarmet Moreira Damas dos

; Naves, Bruno de Lima

; Vieira, Marcelo Luiz Campos

; Rochitte, Carlos Eduardo

Arquivos Brasileiros de Cardiologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2022, Volume 118 N. 4 Pages 797 - 857

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.36660/abc.20220213

13.

Nutrient reference values for ‘Prata-Anã’ banana in improved chemical fertility soils
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Márcio Adriano

; Donato, Sérgio Luiz Rodrigues

; Neves, Júlio César Lima

; Marques, Pedro Ricardo Rocha

; Pereira, Marlon Cristian Toledo

; Rodrigues, Maria Geralda Vilela

Revista Brasileira de Fruticultura

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 44 N. 6 elocation e-570

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O objetivo desste trabalho foi estabelecer, por meio de diferentes métodos diagnósticos, valores de referência nutricional para bananeira ‘Prata-Anã’ em solo de fertilidade construída. O estudo contemplou um banco de dados de um experimento no delineamento em blocos casualizados, arranjado no esquema fatorial 5 × 6 (cinco doses de K2O - 0; 200; 400; 600 e 800 kg ha-1, supridas com esterco bovino e farinha de rocha × seis avaliações da nutrição foliar e produtividade - 210; 390; 570; 750; 930 e 1.110 dias após plantio), com três repetições, totalizando 90 amostras. Os valores de referência foram determinados pelos métodos da Faixa de suficiência, do Nível crítico pela distribuição normal reduzida, da Linha de fronteira, e pela Chance Matemática. Parcelas de alta produtividade, = 36,42 t ha-1 ciclo-1, formaram a população de referência e = 45,79 t ha-1 subpopulação de referência. Os métodos foram eficientes na determinação dos valores de referência nutricional da bananeira ‘Prata-Anã’. Os valores estabelecidos de forma geral são mais altos comparados à literatura, justificados pela maior fertilidade química do solo. Dentre os métodos diagnósticos, a Chance Matemática apresentou-se como o mais preciso para a interpretação dos teores de nutrientes nas folhas da bananeira ‘Prata-Anã’ em condições de fertilidade de solo construída.

Abstract The objective of this work was to establish, through different diagnostic methods, nutrient reference values for ‘Prata-Anã’ banana in improved fertility soil. The study included a database from an experiment conducted in randomized block design, arranged in a 5 × 6 factorial scheme (five doses of K2O - 0; 200; 400; 600 and 800 kg ha-1, supplied by cattle manure and rock powder × six evaluations of leaf nutrition and yield – 210; 390; 570; 750; 930 and 1,110 days after planting), with three replicates, totaling 90 samples. The reference values were determined by the Sufficiency Range, Critical Level by the Reduced Normal Distribution, Boundary Line and Mathematical Chance methods. Plots with high yield, = 36.42 t ha-1 cycle-1, formed the reference population and plots with yield = 45.79 t ha-1 formed the reference subpopulation. The methods were efficient in determining the nutrient reference values of ‘Prata-Anã’ banana. In general, the values established are higher than those reported in the literature, justified by the greater chemical fertility of the soil. Among the diagnostic methods, the Mathematical Chance presented itself as the most accurate for interpreting the nutrient contents in the leaves of ‘Prata-Anã’ banana under improved soil fertility conditions.

https://doi.org/10.1590/0100-29452022570

14.

Atmospheric plasma overcomes dormancy of Pityrocarpa moniliformis (Benth.) Luckow & R. W. Jobson seeds
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Nicolau, Josefa Patricia Balduino

; Pereira, Márcio Dias

; Silva, Francisco Eudes da

; Souza, Dinnara Layza da Silva

; Medeiros, André Dantas de

; Alves, Charline Zaratin

Journal of Seed Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 44 elocation e202244040

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo: A tecnologia de aplicação do plasma atmosférico consiste em um método rápido e prático, que apresenta potencial de modificação da superfície tegumentar de sementes com dureza tegumentar. O objetivo desta pesquisa foi avaliar o efeito da aplicação do plasma frio atmosférico em sementes de Pityrocarpa moniliformis, verificando suas implicações sobre a impermeabilidade do tegumento, germinação e vigor. As sementes foram submetidas ao plasma por 1,5; 2,0; 3,0; 4,0 e 5,0 minutos, utilizando-se como controle, sementes sem nenhum tratamento. Após a aplicação, determinou-se a molhabilidade do tegumento, curva de embebição e condutividade elétrica da solução de embebição. As sementes também foram submetidas ao teste de germinação, tendo-se, a partir dos seus resultados determinado a viabilidade, mediana, uniformidade e assimetria da germinação. As sementes submetidas ao plasma por 4,0 e 5,0 minutos apresentaram os menores ângulos de contato aparente, 64 e 61°, respectivamente, caracterizando maior molhabilidade do tegumento, entre os tratamentos testados. Maior germinação foi observada nos tratamentos com aplicação do plasma quando comparado com o controle. A tecnologia de aplicação do plasma atmosférico tem potencial para ser utilizada como acelerador da germinação de sementes de P. moniliformis.

Abstract: Atmospheric plasma application technology consists of a fast and practical method, which has the potential to modify the surface of seeds with integumentary hardness. The aim of this research was to evaluate the effect of applying atmospheric cold plasma on Pityrocarpa moniliformis seeds, assessing its implications on the seed coat impermeability, germination and vigor. Cells were subjected to plasma for 1.5, 2.0, 3.0, 4.0 and 5.0 minutes, using seeds without any treatment as a control. After application, the seed coat wettability, imbibition curve and electrical conductivity of the soaking solution were determined. Seeds were also subjected to the germination test, and its results were used to determine viability, median, uniformity and asymmetry of germination. Seeds subjected to plasma for 5.0 and 4.0 minutes showed the lowest apparent contact angles, 64 and 61°, respectively, characterizing greater wettability of the seed coat among the treatments tested. Higher germination was observed in the treatments with plasma application when compared to the control. Atmospheric plasma application technology has the potential to be used as an accelerator of P. moniliformis seed germination.

https://doi.org/10.1590/2317-1545v44261872

15.

SARS software for analysis of radiographic images of Urochloa decumbens (Stapf) RD Webster seeds
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ramos, Amanda Karoliny Fernandes

; Medeiros, André Dantas de

; Pereira, Márcio Dias

; Araújo, Yuri Felipe

; Silva, Laércio Junio da

; Alves, Charline Zaratin

Journal of Seed Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 44 elocation e202244045

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo: Recentemente está crescendo a necessidade de tecnologias não invasivas, rápidas e precisas que possam estimar a qualidade das sementes. Entre essas tecnologias, destaca-se a análise de imagens de raios X para avaliação da morfologia interna das sementes. Assim, o objetivo deste estudo foi avaliar a eficiência do software SARS na análise de radiografias digitais de sementes de braquiária, denominado SARS (Sistema de Análise de Radiografias de Sementes) na avaliação da qualidade física das sementes. Cinco lotes comerciais de sementes de Urochloa decumbens cv. Basilisk foram utilizados. As sementes foram produzidas na safra de 2018/2019. As imagens radiográficas das sementes foram analisadas por meio do SARS, por meio das quais foram obtidas características físicas. As sementes foram submetidas ao teste de germinação, no qual foram mensuradas variáveis relacionadas à qualidade fisiológica. Foi possível observar que as sementes com maior potencial de germinação e vigor apresentaram correlações fortes e significativas com algumas das variáveis físicas obtidas pelo SARS. Assim, a alta correlação do comprimento de plântulas e a densidade relativa das sementes é importante para validar o método de análise de imagens radiográficas de sementes. O SARS mostrou-se uma ferramenta eficiente para análise de radiografias digitais de sementes de braquiária, gerando descritores que dão suporte a análise morfométrica e interna das sementes, que podem ser associados à sua qualidade fisiológica. Os parâmetros físicos obtidos pela técnica têm estreita relação com a germinação e o vigor das sementes.

Abstract: Recently is growing the need for non-invasive, fast, and accurate technologies that can predict seed quality. Between these technologies, X-ray image analysis stand out for evaluation of the internal morphology of the seeds. Thus, the aim of the present study was to evaluate the efficiency of a specialized software for analyzing digital radiographs of Urochloa decumbens seeds called SARS (Sistema de Análise de Radiografias de Sementes - Seed Radiograph Analysis System). Five comercial seed lots of U. decumbens cv. Basilisk were used. The seed lots were produced in the 2018/2019 crop season. Radiographic images of the seeds were analyzed in SARS, through which physical characteristics were obtained. The seeds were then subjected to germination test, in which variables related to the physiological quality were evaluated. It was possible to observe that the seeds with greater germination and vigor showed strong and significant correlations with some of the physical variables obtained using SARS. Thus, high correlation of seedling length and relative seed density is important for validating the seed radiographic image analysis method. SARS proved to be an efficient tool for analyzing digital radiographs of U. decumbens seeds. It can generate descriptors which support morphometric and internal analysis of the seeds. Physical parameters obtained by using the technique have close relationship with the germination and vigor of the seeds.

https://doi.org/10.1590/2317-1545v44264545

Showing

itens per page

Page of 8 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »