Potencial de Cleruchoides noackae para o controle biológico de Thaumastocoris peregrinus.

Resumo

Undecidable properties of self-affine sets and multi-tape automata

We study the decidability of the topological properties of some objects coming from fractal geometry. We prove that having empty interior is undecidable for the sets defined by two-dimensional graph-directed iterated function systems. These results are obtained by studying a particular class of self-affine sets associated with multi-tape automata. We first establish the undecidability of some language-theoretical properties of such automata, which then translate into undecidability results about their associated self-affine sets.Comment: 10 pages, v2 includes some corrections to match the published versio

Profile of porcine respiratory disease complex associated with Pasteurella multocida in Minas Gerais state, Brazil.

Projeto/Plano de Ação: 02.10.61600-01

Análise do polimorfismo da região ITS do rDNA de Cylindrocarpon spp., agente causal do pé-preto da videira utilizando endonucleases.

o pé-preto da videira é uma doença caracterizada pelo declfnio e morte de plantas, causada pelo fungo Cylindrocarpon spp. A análise morfológica e molecular (marcadores RAPO) de isolados coIetados em videiras com sintomas de pé-preto na Região Sul do Brasil revelou grande variabilidade genética e resultou na identificação da espécie C. desfrucfans como agente causal da doença. Estudos moleculares recentes da região ITS de isolados coletados de diversos pafses e identificados como C. destructans sugerem que estes isolados sejam um complexo de várias espécies.Resumo

Improvement in insulin sensitivity, but without changes in liver enzymes in obese women after 12 weeks of a walking exercise program with self-selected intensity

Background: Obesity is related to negative changes in insulin resistance and liver enzymes and is associated with the risk factor for the development of type II diabetes mellitus and nonalcoholic fatty liver disease. A number of studies have demonstrated that aerobic exercise shows promise for disease prevention and treatment in this population. Aim: The objective of the present study was to evaluate the effect of a walking exercise program with self-selected intensity on insulin resistance and liver enzymes in obese women. Methods: Forty-eight obese women (47.8 ± 8.4 years; 88.1 ± 12.0 kg; 158.0 ± 0.1 cm) were divided into two groups: control group (CG; n = 23) and self-selected walking group (SSWG; n = 25). Before and after the exercise program, all subjects underwent anthropometric measurements and blood samples were collected. The intervention consisted of a walking exercise program with self-selected intensity for 12 weeks (3 times/week, totalizing 36 sessions). Results: After the exercise program, fasting glucose, fasting insulin, and HOMA improved only in the SSWG (p 0.05). In addition, there were no differences in liver enzymes after the intervention in both groups (p > 0.05). Conclusions: The results support that a walking exercise program with self-selected intensity improved insulin resistance in obese women. Thus, exercise programs with self-selected intensity seem to be an interesting alternative for improving health and preventing diseases

Branched-chain amino acids do not improve muscle recovery from resistance exercise in untrained young adults.

The purpose of this study was to investigate the effects of BCAA supplementation on muscle recovery from resistance exercise (RE) in untrained young adults. Twenty-four young adults (24.0 ± 4.3 years old) were assigned to 1 of 2 groups (n = 12 per group): a placebo-supplement group or a BCAA-supplement group. The groups were supplemented for a period of 5 days. On day 1 and 3, both groups underwent a RE session involving two lower body exercises (hack squat and leg press) and then were evaluated for muscle recovery on the 3 subsequent moments after the RE session [30 min (day 3), 24 h (day 4), and 48 h (day 5)]. The following indicators of muscle recovery were assessed: number of repetitions, rating of perceived exertion in the last RE session, muscle soreness and countermovement jump (CMJ) during recovery period (30 min, 24 h, and 48 h after RE session). Number of repetitions remained unchanged over time (time, P > 0.05), while the rating of perceived exertion increased (time, P  0.05). Muscle soreness increased (time, P  0.05). The results indicate that BCAA supplementation does not improve muscle recovery from RE in untrained young adults

Análise genética de acessos do banco ativo de germoplasma de pêra com a utilização de marcadores moleculares SSR.

A pêra é a terceira fruta mais produzida no mundo depois da uva e da maçã. O Brasil consome quase dez vezes mais do que produz, por isso toma-se um mercado bastante dependente de importações. Os marcadores SSR são Importantes para o estudo de poürnorfísmo em espécies vegetais possuindo vantagens como co-dominância e multialelismo.Resumo

Taxa fotossintética em macieiras tratadas com metamitron.

Metamitron (MM) um herbicida que inibe a fotossíntese, foi, recentemente, relatado como efetivo para raleio de Pós floração em macieira, porém pouco se sabe sobre o seu período de interferência sobre a taxa fotossintética e possíveis interferências no desenvolvimento dos frutos após sua aplicação. O objetivo deste estudo foi avaliar a resposta da aplicação diferentes concentrações de MM, na taxa fotossintética, índice de clorofila, taxa de crescimento e redução da frutificação em macieiras ‘Fuji Suprema’ e ‘Maxi Gala’. O experimento foi conduzido em pomar experimental no município de Caçador, SC, na safra 2014/2015. O delineamento experimental foi em blocos casualisados com quatro tratamentos (0mg L-1 , 350mg L-1 , 700mg L-1 e 1050mg L-1 de MM) e cinco repetições de uma planta, aplicados na fase em que os frutos se encontravam com diâmetro entre 20mm e 25mm, em ambas as cultivares. As variáveis analisadas foram: taxa fotossintética, índice de clorofila, taxa de crescimento dos frutos e redução da frutificação. Independentemente da concentração de MM aplicada se observou redução da taxa fotossintética em ambas as cultivares de macieira avaliadas. A aplicação de MM não promoveu a queda de frutos, independentemente da concentração aplicada, devido a época de aplicação tardia, porém afetou o crescimento dos frutos na ‘Maxi-Gala’. Aplicações foliares de MM em macieiras ‘Maxi Gala’ e ‘Fuji Suprema’ reduzem a taxa de fotossíntese de forma proporcional a sua concentração. Palavras-chave: Malus domestica Borkh. Raleio químico. Fisiologia vegetal. Physiological changes in apple trees treated with Metamitron Metamitron (MM), a herbicide that inhibits photosynthesis, has recently been reported as effective for post flower blossom thinning, but little is known about its period of interference on the photosynthetic rate and possible interferences in fruit development after its application. The objective of this study was to evaluate the response of the application of different concentrations of MM, in the photosynthetic rate, chlorophyll index, growth rate and fruiting reduction in 'Fuji Suprema' and 'Maxi Gala' apple trees. The experiment was conducted in an experimental orchard in the municipality of Caçador, SC, in the 2014/2015 harvest. The experimental design was in randomized blocks with four treatments (0mg L-1 , 350mg L-1 , 700mg L-1 and 1050mg L-1 of MM) and five replications of a plant, applied in the phase where the fruits were with diameter between 20mm and 25mm, in both cultivars. The analyzed variables were: photosynthetic rate, chlorophyll index, fruit growth rate and fruiting reduction. Regardless of the concentration of MM applied, there was a reduction of the photosynthetic rate in both evaluated apple cultivars. The application of MM did not promote the fruit drop, independently of the concentration applied, due to the time of late application, but affected the fruit growth in 'Maxi-Gala'. Foliar applications of MM in 'Maxi Gala' and 'Fuji Suprema' apple trees reduce the rate of photosynthesis proportionally to their concentration. Keywords: Malus domestica Bork. Chemical thinning. Plant physiology

Effects of ultrasound on the performance improvement of wastewater microfiltration through a porous ceramic filter

Filtration under an ultrasonic field is a technique that is gaining importance in the wastewater treatment research field, not only due to its ability as a cleaning mechanism, but also as a filtration intensifier. The main objective of this research was the study of the influence of ultrasonic waves on the filtration of theoilfield wastewater (known as produced water) in order to increase the operation performance and filter medium regenerative effectiveness. A 0.016 m2 hollow cylindrical porous ceramic filter was submitted to the filtration of produced water by two mechanisms: conventional filtration under vacuum and filtration under theinfluence of ultrasonic waves. Experiments were carried out using synthetic produced water by analyzing the variables oil and grease content (O&G) and total suspended solids (TSS) for each filtration run. Backwashing of the filter medium with distilled water was also performed to evaluate the regeneration efficiency. During conventional filtration, permeate flux decreased gradually, becoming stable around 0.06 cm3.cm-2.s-1. Furthermore, in the filtration assisted by ultrasound, the permeate flux was around 0.15 cm3.cm-2.s-1. Therefore, ultrasonic waves provided an increase of about 150% in the permeate flux. Moreover, the sonication improved filter medium regeneration effectiveness, even under conditions of high TSS and O&G contents. Taking into consideration the very positive results associated with the application of ultrasonicwaves, this filtration technique is likely to become an important industrial process