366 resultados para Longus Colli


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Text in Italian.

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Each volume has general half-title and special t-p.

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Pamphlets politiques. Opuscules inédits. Les pastorales de Longus. Hérodote. Lettres inédites.

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Mode of access: Internet.

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Mode of access: Internet.

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We conducted magnetic resonance imaging of the posterior tibial (PT) and flexor digitorum longus (FDL) muscle bellies in 12 patients undergoing surgical treatment for unilateral posterior tibial tendon (PTT) dysfunction. All patients had atrophy of the PT muscle compared to the normal leg (mean 10.7%, p=0.008). In those patients with a complete rupture of PTT there was replacement of the PT muscle by fatty infiltration. Conversely, the FDL muscle showed a compensatory hypertrophy (mean 17.2%, p

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An important functional and evolutionary constraint on the physical performance of vertebrates is believed to be the trade-off between speed and endurance capacity. However, despite the pervasiveness of physiological arguments, most studies have found no evidence of the trade-off when tested at the whole-animal level. We investigated the existence of this trade-off at the whole-muscle level, the presumed site of this physiological conflict, by examining inter-individual variation in both maximum power output and fatigue resistance for mouse extensor digitorum longus (EDL) muscle using the work-loop technique. We found negative correlations between several measures of in vitro maximum power output and force production with fatigue resistance for individual mouse EDL muscles, indicating functional trade-offs between these performance parameters. We suggest that this trade-off detected at the whole-muscle level has imposed an important constraint on the evolution of vertebrate physical performance.

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In this study, we examined patterns of leg muscle recruitment and co-activation, and the relationship between muscle recruitment and cadence, in highly trained cyclists. Electromyographic (EMG) activity of the tibialis anterior, tibialis posterior, peroneus longus, gastrocnemius lateralis and soleus was recorded using intramuscular electrodes, at individual preferred cadence, 57.5, 77.5 and 92.5 rev.min(-1). The influence of electrode type and location on recorded EMG was also investigated using surface and dual intramuscular recordings. Muscle recruitment patterns varied from those previously reported, but there was little variation in muscle recruitment between these highly trained cyclists. The tibialis posterior, peroneus longus and soleus were recruited in a single, short burst of activity during the downstroke. The tibialis anterior and gastrocnemius lateralis were recruited in a biphasic and alternating manner. Contrary to existing hypotheses, our results indicate little co-activation between the tibialis posterior and peroneus longus. Peak EMG amplitude increased linearly with cadence and did not decrease at individual preferred cadence. There was little variation in patterns of muscle recruitment or co-activation with changes in cadence. Intramuscular electrode location had little influence on recorded EMG. There were significant differences between surface and intramuscular recordings from the tibialis anterior and gastrocnemius lateralis, which may explain differences between our findings and those of previous studies.

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Signal grass pastures were oversown with four Leucaena spp. planted in hedgerows and evaluated for their agronomic productivity and ability to support steer liveweight gains. Each Leucaena sp. (L. leucocephala, L. pallida, L colli. nst. i., L. trichandra) was planted as seedlings into two I ha paddocks in rows 5 m apart, with I m spacing between trees. Cattle were rotationally grazed on the 2 replicates of each species, as well as on two I ha paddocks of a signal grass on y (Brachiaria decumbens) control, over a 243-day period at a stocking rate of 3 steers/ha. Mean presentation yield and herbage allowance of the Leucaena accessions over the grazing period were highest for L pallida (1100 kg/ha and 0.8 kg DM/kg LW, respectively), followed by L. leucocephala (700 kg/ha and 0.5 kg DM/kg LW), L. collinsii (700 kg/ha and 0.4 kg DM/kg LW) and L. trichandra (300 kg/ha and 0.2 kg DM/kg LW). Despite only moderate presentation yields and herbage allowances, steers grazing L. leucocephala and L. collinsii accessions produced the highest mean liveweight gains (LWG) of 0. and 0.56 kg/hd/d, respectively. While L. pallida produced the highest DM yields, it supported the lowest LWG of 0.36 kg/hd/d. The mean LWGs of steers grazing L. trichandra and the control (grass only) treatments were similar at 0.48 kg/ hd/d. The possible reasons for the differences in steer performance on the different Leucaena accessions are discussed.

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As dinâmicas proféticas no prólogo de Dêutero-Isaías que delineiam grande parte das linhas da mensagem apresentada em todo o bloco de Isaías 40-55 como uma introdução, é via desta pesquisa. Estas dinâmicas contêm conceitos teológicos renovados, pertinentes, e que fortaleceram o ânimo dos exilados. Para isto, o profeta usou como modelo antigas memórias fundamentais do povo hebreu. Em especial no prólogo, destacam-se o êxodo do Egito e a peregrinação no deserto, que têm seu propósito em chamar os exilados à resistência ao assédio e incorporação babilônica. Tendo em vista que, entre sucumbir aos encantos da religião e cultura babilônica, ou continuar a firmar a fé em Javé esperando a mudança da sorte, estava o drama vivido pelos exilados. O povo precisava de respostas pertinentes às suas dúvidas e é neste sentido que surge a profecia de Dêutero-Isaías combatendo a crise com esperança e movimentando à fé antes resignada. Neste sentido, a história da salvação serve como apoio e garantia para o futuro de libertação e restauração. Quando o presente não era capaz de suscitar esperança de mudanças no futuro, o profeta buscou no passado, memórias capazes de suscitarem aos exilados o desejo de servir a Javé ao invés de Marduque. Por trás desta necessidade surge o conceito de que a história do povo é o caminho pelo qual Javé escolheu para manifestar-se. No prólogo é possível perceber, como, e, o que, o profeta utilizou para levar os judaítas exilados a sentir-se verdadeiramente o povo de Deus. Foi importante fazer com que buscassem sua identidade em suas experiências de libertação do passado para que pudessem ter esperança.

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The effects of organophosphorus compounds which form a rapidly-ageing complex with acetylcholinesterase (AChE) (e.g. pinacolyl S-(2- trimethylaminoethyl)methylphosphonothioate (BOS)) and hence exert a persistent anticholinesterase (anti-ChE) action have been compared with other compounds with a shorter time course of inhibition (e.g. ecothiopate iodide (ECO)). Although the inhibition of AChE produced by BOS lasted longer than that seen with ECO, the time course of the myopathy appeared very similar. BOS also possessed a number of properties which have been seen with other anti-ChEs. BOS and ECO produced significant increases in neuromuscular "jitter" 5 days after injection, not only in the diaphragm but also in the soleus and extensor digitorum longus muscles. Increases in "jitter" produced by ECO could be prevented by pyridostigmine prophylaxis or rapid treatment with pyridine-2- aldoxime methiodide. Some protection from the BOS-induced increases in "jitter" could be gained by repeated treatment with pyridine-2-aldoxime methiodide, an effect which could not be accounted for simply by enzyme reactivation. From experiments performed in Rej 129 mice it was determined that increases in "jitter", although demonstrated in some dystrophic muscles, could not be used as an early diagnostic tool. Because sequalae of inhibition were present some time after intoxication, by which time AChE appeared biochemically normal, experiments were performed to investigate inactivation of physiologically important AChE. The time course of extracellular MEPPs was utilised as an indicator of physiologically important AChE and compared with the AChE activity measured by the technique of Ellman et al. (1961). It was concluded that the degree of persistence of anti-ChE action was unimportant for the induction of myopathy with a time course of 3-24 hours, but had some importance in events of longer duration.

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