Aspectos gerais das braquiárias e suas características na sub-região da Nhecolândia, Pantanal, MS.

A escolha da gramínea forrageira, para formação de uma pastagem, deve ser bastante criteriosa, visando a maior produtividade de matéria seca e conteúdo de proteína bruta, com equilíbrio estacional e aceitabilidade pelos animais. A produção de forragem é um dos principais fatores capazes de afetar a produtividade de um sistema de pastejo. A principal atividade econômica do Pantanal está centrada na pecuária de corte e existe uma busca por forrageiras exóticas para o incremento da produtividade animal. Das gramíneas exóticas introduzidas no Pantanal as que vêm apresentando um maior destaque são as braquiárias, notadamente Brachiaria decumbens e B. humidicola. Este trabalho aborda as características gerais das seguintes espécies de braquiárias: B. decumbens, brizantha e humidicola. Também são enfocados alguns resultados de pesquisas na sub-região da Nhecolândia, Pantanal, MS, tais como, identificação das fitofisionomias mais utilizadas na introdução das braquiárias, recomendações técnicas, produtividade de B.decumbens e B. humidicola , valor nutritivo e cobertura do solo.bitstream/item/37419/1/BP33.pd

On the origin of the extremely different solubilities of polyethers in water

The solubilities of polyethers are surprisingly counter-intuitive. The best-known example is the difference between polyethylene glycol ([–CH2–CH2–O–]n) which is infinitely soluble, and polyoxymethylene ([–CH2–O–]n) which is completely insoluble in water, exactly the opposite of what one expects from the C/O ratios of these molecules. Similar anomalies exist for oligomeric and cyclic polyethers. To solve this apparent mystery, we use femtosecond vibrational and GHz dielectric spectroscopy with complementary ab initio calculations and molecular dynamics simulations. We find that the dynamics of water molecules solvating polyethers is fundamentally different depending on their C/O composition. The ab initio calculations and simulations show that this is not because of steric effects (as is commonly believed), but because the partial charge on the O atoms depends on the number of C atoms by which they are separated. Our results thus show that inductive effects can have a major impact on aqueous solubilities

The Effects of Olympic Weightlifting Derivatives on Muay Thai Roundhouse Kicking Performance

The purpose of this study was to identify performance measures in roundhouse striking, by the implementation of Olympic Weightlifting Derivatives (OWLD) with Muay Thai fighters. Forty male subjects were recruited, with twenty male subjects placed in the experimental group (EG)and twenty male subjects in the control group (CG) and were randomly assigned to their groups. Mean 26 years 3 (± 3.2), weight and height 82.4 kg (± 12.2), and 180.7cm (± 3). Pre- and post-intervention and control group testing included roundhouse strike impact power, measured using the PowerKubeTM, a dynamometer that identifies the impact power used to produce striking potential. Countermovement jumps were recorded using a single PASCO force platform one axis PS2141. The EG subjects were prescribed an eight-week training programme that was carried out prior to their sparring with twenty minutes rest to recover. The control group were instructed to carry out traditional training that involved the same volume of sparring, cardiovascular fitness, and circuit training as the EG. Within-group post test results showed the EG and CG group demonstrated significantly different results in RHK performance (p ≤ 0.01); however, no significant differences were observed between groups. Results in the countermovement jump were, however, highly significant (p ≤ 0.01) in the EG (within group), but not significant in the CG (p ≥ 0.05); again, no significant differences were observed between groups. Meaningful differences were seen in the EG with a 7.41% increase in roundhouse kicking performance and 7.54% in countermovement jump height, compared to the CG that elicited negligible differences of only 1.56% in the roundhouse kicking performance and 0.33% in countermovement jumper, demonstrating OWLD would improve the performance of the Muay Thai fighter

On the use of the quality function deployment matrix for flexible and quantitative prioritization

The QFD methodology is totally directed to the client instead of the product, wherein the effort from all the involved departments allows the match between the client’s requirements and the offered product. Therefore, it is necessary to determine the engineering characteristics that aim at satisfying those customer attributes. These engineering characteristics must be measurable, in order to provide analysis and optimization opportunities. Afterwards, the prioritization of these engineering characteristics is carried out so that they are performed in the most efficient way. Throughout the paper, the authors propose the design of a new simple, flexible and quantitative methodology of activities prioritization. Strategic planning is introduced in the QFD methodology of organization and proposes the minimization of possible incompatibilities that may arise between its capabilities and customer requirements. Business variables are introduced at different stages of the design in order to calculate with greater precision the value resulting from the prioritization and to allow nullity or uniformity of the relative importance of customer attributes. The qualitative fulfillment of the correlations of the QFD methodology is replaced by a quantitative aspect that aims to minimize the filling of errors and interpretation when using the methodology. At the end of the paper, an example of planning the design of a smartphone using the new methodology is given.info:eu-repo/semantics/publishedVersio