Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 8 de 8
Filter
1.
Braz. arch. biol. technol ; 63(spe): e20190063, 2020. tab, graf
Article in English | LILACS | ID: biblio-1142506

ABSTRACT

Abstract System fertilization is characterized by partial or total fertilizer application at the predecessor crop; and it can be a viable practice to soybean crop. This study aimed to determine the fertilizer management and fertilizer levels for black oat-soybean cropping system, in high fertility soils and no-tillage system. The field trial was conducted in a bifactorial scheme, consisting of six environments, by combination of locations (Bom Sucesso do Sul - Paraná, Itapejara d'Oeste - Paraná) and fertilization management (all fertilization in black oat; splitting with 50% in black oat and 50% in soybean, all fertilization in soybean), and four fertilizer levels (0, 100, 200 and 300%) defined according to soil analysis and production expected. The evaluated traits were dry mass production, N, P and K nutrient accumulation of straw, dry mass remaining of black oat crop; and plant height, number of pods per plant, thousand grain weight, grain yield for soybean crop. Higher black oat dry mass production was observed at higher fertilization level. The fertilizer anticipation in black oat crop had better performance. Phosphorus and potassium accumulation increased linearly with fertilizer level increase. For N, the highest accumulated value occurred at the 200%, decreasing at the 300% of fertilizer level. The soybean crop had no influence in grain yield considering fertilization management, anticipation or splitting, and fertilizer levels. Thus, the system fertilization can be a viable practice, and favor black oat dry mass production and soybean development.


Subject(s)
Humans , Soybeans/growth & development , Soil Analysis , Avena/growth & development , Fertilizers , Phosphorus/analysis , Potassium/analysis , Crop Production/methods , Nitrogen/analysis
3.
Rev. Fac. Odontol. Porto Alegre ; 52(1/3): 5-9, jan.-dez. 2011. ilus, tab
Article in Portuguese | LILACS, BBO | ID: lil-719546

ABSTRACT

Objetivo: O objetivo deste estudo foi avaliar através da análise de sua ação bacteriostática e bactericida, a eficácia de uma solução de glutaraldeído 2% após receber sucessivas imersões de impressões de alginato, contaminadas.Materiais e métodos: Foram coletadas sete amostras do desinfetante em uso. A avaliação da ação bacteriostática, dasamostras se deu pela presença de bactérias viáveis através do método de Contagem Padrão em Ágar. Para a avaliação da ação bactericida, placas foram inoculadas com Escherichia. coli,Pseudomonas aeruginosa, e Staphylococcus aureus. Poços com0,9 cm de diâmetro, realizados no meio de cultura das placas, receberamalíquotas de 100μL de glutaraldeído, de cada amostra. As placas foram mantidas entre 8-10ºC, por 16 horas para difusão do composto. Após as placas foram para estufa a 37ºC, por 24 horas. A atividadeantibacteriana foi avaliada pela presença de zonas de inibição decrescimento bacteriano em torno dos poços onde o glutaraldeído foi colocado.Resultados: Os resultados mostram que não houve crescimento bacteriano em nenhuma amostra e que todas as placas inoculadas mostraram zona de inibição pela ação do glutaraldeído. Conclusão: O delineamento deste estudo permite concluir que pelo menos, 70 impressões de alginato podem ser desinfetadas em 3L de glutaraldeído 2%, durante 28 dias.


Aim: The objective of this work is to evaluate the efficacy of 2% glutaraldehyde solution after successive immersions of contaminated alginate impressions by analyzing its bacteriostatic and bactericidal activity.Materials and methods: Seven samples of the disinfectant were collected. Evaluation of bacteriostatic activity of the samples was performed by observing the presence of viable bacteria through Standard Methods Agar(Plate Count Agar). Plates were inoculated with Escherichia. coli, Pseudomonas aeruginosa, e Staphylococcus aureus in order to evaluate bactericidal activity. Wells with a 0.9 cm diameter at the centre of the plate received aliquots of 100μL of glutaraldehyde in each sample. Then, the plates were maintained at 8-10ºC for 16 hours to allow diffusion of the compound. Later, the plates were stored at 37ºC in a stove for 24 hours. Antibacterial activity was evaluated by the presence of zone of inhibition in bacterial growth around the wells where the glutaraldehyde was placed.Results: Results show no bacterial growth in any sample, and allinoculated plates showed zone of inhibition in bacterial growth.Conclusion: With this study design, it is possible to conclude that at least 70 alginate impressions may be disinfected in 3L of 2% glutaraldehyde solution during 28 days.


Subject(s)
Alginates , Bacterial Load , Disinfection , Glutaral
4.
Rev. Fac. Odontol. Porto Alegre ; 52(1/3): 11-14, jan.-dez. 2011. tab
Article in Portuguese | LILACS, BBO | ID: lil-719547

ABSTRACT

Objetivo: O objetivo deste estudo foi avaliar a eficácia do ácido peracético e do glutaraldeído na desinfecção do alginato contaminado com Staphylococcus aureus em função do tempo de imersão (10 e 5min).Materiais e métodos: Os corpos de prova foram previamente contaminados com S. aureus e em seguida divididos em seis grupos de acordo com a substância desinfetante e o tempo de imersão. As amostras foram incubadas em 20 mL de caldo BHI estéril em estufa a 35± 2 ºC, sob agitação de 100 rpm, por 16 horas. Posteriormente asamostras do caldo de todos os tubos de ensaio foram semeadas para determinar a presença ou ausência de células viáveis. Resultados: Os resultados mostraram que os grupos controle e olavado em água estéril apresentaram crescimento bacteriano. Conclusão:O ácido peracético foi igualmente eficaz ao glutaraldeído para desinfecção, doalginato contaminado com S. aureus,por imersão tanto no tempo de 10 quanto 5 minutos .


Objective: The aim of this study was to evaluate the effectiveness of peracetic acid and glutaraldehyde for the disinfection of alginate contaminated with Staphylococcus aureus as a functionof immersion time (10 and 05 min).Materials and methods: The specimenswere previously contaminated withS. aureus and then divided into sixgroups based on the disinfectantsubstance and immersion time. The samples were incubated in 20 ml ofsterile BHI broth in an oven at 35 ±2 °C and shakd at 100 rpm for16 hours.Subsequently the samples of the brothfrom all the test tubes were platedto dete rmine the presence or absenceof viable cells. Results: The results showed that the control groups andthat just washed in sterile water showedbacterial growth. Conclusion: Theperacetic acid and glutaraldehyde was also effective for disinfection of alginate infected with S. aureus, both byimmersion time of 10 and 5 minute.


Subject(s)
Alginates , Bacterial Load , Disinfection , Glutaral , Peracetic Acid , Staphylococcus aureus
5.
Rev. Fac. Odontol. Porto Alegre ; 50(3): 5-9, dez. 2009. graf
Article in Portuguese | LILACS, BBO | ID: biblio-874439

ABSTRACT

Actually, many dental cements are available to cement fixed prosthesis at dental clinical practice. The aim of this study was to evaluate the cements used to fixed prosthesis by specialists who work at city of Porto Alegre with a questionnaire. A questionnaire with 22 questions was elaborated and applied to professionals registered at Regional Dentistry Council (CRO). From the 225 electable subjects, 39 were excluded. The sample of 186 specialists, 72 weren´t interviewed. The 114 interviewed subjects represented a 61.29% of response rate. The graduate year of 52% of subjects was between 1981 and 2000, and 63% finished the post graduate course after 1991. To final cementation of fixed metal ceramic prosthesis, 65% used zinc phosphate cement. However, to cements metal free fixed prosthesis, 57% used resinous cement. With technological advances at rehabilitation materials, new materials and techniques were developed. However, the zinc phosphate cement is still the first choice to cement metal ceramic prosthesis to Porto Alegre specialists.


Atualmente, diversos cimentos são utilizados para cimentação de próteses fixas na prática clínica odontológica. Sendo assim, o objetivo do presente estudo foi avaliar o uso de cimentos para prótese fixa por especialistas em prótese dentária que atuam no município de Porto Alegre. Para isso, um questionário com 22 perguntas foi elaborado e aplicado a tais profissionais registrados no Conselho Regional de Odontologia. Dentre os 225 indivíduos elegíveis, 39 foram excluídos. Da amostra de 186 especialistas, 72 não foram entrevistados. Os 114 indivíduos entrevistados representaram uma taxa de resposta de 61,29%. O ano de graduação de 52% dos respondentes foi entre 1981 e 2000 e 63% concluíram o curso de pós-graduação após 1991. Para cimentação final de próteses fixas métalo-cerâmicas, 65% dos dentistas usavam cimento de fosfato de zinco. Entretanto, para prótese fixas livres de metal, 57% utilizavam cimento resinoso. Com o avanço da tecnologia em materiais reabilitadores, novos materiais e técnicas foram criados, no entanto, o cimento de fosfato de zinco segue como primeira escolha entre os especialistas para cimentação final de próteses métalo-cerâmicas.


Subject(s)
Humans , Male , Female , Dental Cements , Denture, Partial, Fixed , Zinc Phosphate Cement , Surveys and Questionnaires
6.
Rev. bras. cir. cardiovasc ; 20(1): 91-93, Jan.-Mar. 2005. ilus
Article in Portuguese | LILACS | ID: lil-413215

ABSTRACT

Paciente do sexo masculino, 29 anos, apresentando ferimento por arma de fogo, com projétil alojado no coração e que chegou ao hospital hemodinamicamente estável. O diagnóstico, evidenciando a localização da bala, foi feito pelo ecocardiograma transesofágico(ET). Após 18 dias, foi submetido a cirurgia eletiva, sem circulação extracorpórea(CEC), para retirada do projétil encravado em parede anterior do ventrículo direito(VD) e septo interventricular(SIV), com sucesso. Os autores discutem a conduta terapêutica para os projéteis retidos no coração, com base na literatura consultada, concluindo que a cirurgia para remoção dos mesmos pode ser indicada em pacientes assintomáticos individualizados


Subject(s)
Humans , Male , Adult , Foreign Bodies/surgery , Wounds, Gunshot/surgery , Heart Septum/surgery , Heart Septum/injuries , Heart Injuries/surgery , Heart Injuries/physiopathology , Heart Ventricles/surgery , Heart Ventricles/injuries
7.
Rev. bras. cir. cardiovasc ; 15(3): 259-262, jul.-set. 2000. ilus
Article in Portuguese | LILACS | ID: lil-280489

ABSTRACT

Homem de 65 anos apresentando emagrecimento, dispnÚia e derrame pleural (DP) recorrente. A avaliaçäo cardiológica evidenciou ruflar diastólico (3/6) no foco mitral e hiperfonese da 1ª bulha. O ecocardiograma e o estudo hemodinâmico mostraram uma grande massa tumoral no átrio esquerdo (AE), sugerindo mixoma e hipertensäo pulmonar. A biópsia pleural revelou pleurite crônica inespecífica. O paciente foi submetido à operaçäo com circulaçäo extracorpórea para exérese do tumor de AE e o estudo histopatológico confirmou o diagnóstico de mixoma. O DP tem sido manifestaçäo muito rara do mixoma cardíaco (MC), que às vezes apresenta somente sinais e sintomas inespecíficos de doença inflamatória crônica


Subject(s)
Humans , Male , Aged , Myxoma/complications , Heart Neoplasms/complications , Pleural Effusion/etiology , Echocardiography , Electrocardiography , Heart Atria , Myxoma/diagnosis , Myxoma/surgery , Heart Neoplasms/surgery , Heart Neoplasms/diagnosis , Pleural Effusion/diagnosis , Pleural Effusion/surgery
8.
Arq. bras. cardiol ; 74(5): 419-30, May 2000. tab
Article in Portuguese, English | LILACS | ID: lil-265616

ABSTRACT

OBJECTIVE: Assessment of incidence and behavior of mediastinitis after cardiac transplantation. METHODS: From 1985 to 1999, 214 cardiac transplantations were performed, 12 (5.6 per cent) of the transplanted patients developed confirmed mediastinitis. Patient's ages ranged from 42 to 66 years (mean of 52.3 + or - 10.0 years) and 10 (83.3 per cent) patients were males. Seven (58.3 per cent) patients showed sternal stability on palpation, 4 (33.3 per cent) patients had pleural empyema, and 2 (16.7 per cent) patients did not show purulent secretion draining through the wound. RESULTS: Staphylococcus aureus was the infectious agent identified in the wound secretion or in the mediastinum, or both, in 8 (66.7 per cent) patients. Staphylococcus epidermidis was identified in 2 (16.7 per cent) patients, Enterococcus faecalis in 1 (8.3 per cent) patient, and the cause of mediastinitis could not be determined in 1 (8.3 per cent) patient. Surgical treatment was performed on an emergency basis, and the extension of the débridement varied with local conditions. In 2 (16.7 per cent) patients, we chose to leave the surgical wound open and performed daily dressings with granulated sugar. Total sternal resection was performed in only 1 (8.3 per cent) patient. Out of this series, 5 (41.7 per cent) patients died, and the causes of death were related to the infection. Autopsy revealed persistence of mediastinitis in 1 (8.3 per ent) patient. CONCLUSION: Promptness in diagnosing mediastinitis and precocious surgical drainage have changed the natural evolution of this disease. Nevertheless, observance of the basic precepts of prophylaxis of infection is still the best way to treat mediastinitis.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Heart Transplantation/adverse effects , Mediastinitis/microbiology , Postoperative Complications/microbiology , Incidence , Mediastinitis/epidemiology , Mediastinitis/surgery , Postoperative Complications/epidemiology , Postoperative Complications/surgery , Retrospective Studies
SELECTION OF CITATIONS
SEARCH DETAIL