98 research outputs found

    Estudo do conhecimento dos fisioterapeutas e alunos de fisioterapia acerca da aplicação de crioterapia no tratamento das entorses de tornozelo

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    Projeto de Graduação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Licenciada em FisioterapiaIntrodução: A compreensão dos mecanismos fisiológicos da cicatrização e dos efeitos do frio evita efeitos deletérios sobre o tecido. Objetivo: O objetivo deste estudo é avaliar o conhecimento de fisioterapeutas e alunos de fisioterapia sobre a aplicação da crioterapia no tratamento de lesões traumáticas no tornozelo . Metodologia: 195 participantes de ambos os sexos foram incluídos, com 127 fisioterapeutas e 68 alunos de fisioterapia. A idade média dos participantes é de 29,75±7,65 ano. Foi seguido o método Delphy para a construção do questionário, utilizando a melhor evidência disponível acerca da temática para formular as 20 perguntas. O conhecimento foi medido por uma escala de avaliação portuguesa de 0 a 20. Resultados: Os participantes obtiveram uma média de 14,17±2,34 no score ao questionário. As médias das notas segundo a situação profissional (p=0,381), o ano escolar (p=0,839) e a experiência profissional (p=0,816) não apresentam diferenças, sendo que os participantes com ausência de formação profissional têm uma média mais baixa (p=0,008). Na análise do score por questão nota-se diferenças significativas quanto à situação profissional nas questões 14, 16 e 19. Conclusão: Os participantes têm a menção “Bom com distinção” sobre conhecimento do uso da crioterapia.Introduction : Understanding the physiological mechanisms of healing and the effects of cold avoids harmful effects. Objective : The aim of this study is to evaluate the knowledge of physiotherapists and physiotherapy students on the application of cryotherapy in the treatment of traumatic ankle injuries. Methodology: 195 participants of both sexes were included, with 127 physical therapists and 68 students from several years of physiotherapy course. The average age of the participants is 29.75±7.65 years. We followed the Delphy method to build the questionnaire and used articles to formulate the 20 questions. Knowledge was measured by a Portuguese rating scale from 0 to 20. Results: The participants had an average of 14.17±2.34. Average grades according to professional status (p=0,381), school year (p=0,839) and professional experience (p=0,839) do not differ and participants with no professional training have a lower average (p=0,008). In the individual analysis of the score per question, it is noted significant differences regarding the professional situation in questions 14, 16 and 19. Conclusion : Participants have the mention “Bom com distinção” about knowledge of the use of cryotherapy.N/

    A biomechanical model of the face including muscles for the prediction of deformations during speech production

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    A 3D biomechanical finite element model of the face is presented. Muscles are represented by piece-wise uniaxial tension cable elements linking the insertion points. Such insertion points are specific entities differing from nodes of the finite element mesh, which makes possible to change either the mesh or the muscle implementation totally independently of each other. Lip/teeth and upper lip/lower lip contacts are also modeled. Simulations of smiling and of an Orbicularis Oris activation are presented and interpreted. The importance of a proper account of contacts and of an accurate anatomical description is show

    Water driven Palestinian agricultural frontiers: the global ramifications of transforming local irrigation

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    In agricultural transformations, small scale farmer driven processes interact with globally driven processes. Donor-led or foreign investor-led irrigation development systematically interacts with local, farmer-led irrigation development. This article harnesses Kopytoff's concept of 'interstitial frontier' to study such interactions. It discusses the shape an agricultural frontier may have and its interactions with local forms of water and land tenure. It discusses the manner in which changing access to water may spur the development of agricultural pioneer fronts. It distinguishes surface water driven, groundwater driven and wastewater driven agricultural frontiers. It then explores the manner such frontiers are transforming water tenure in the West Bank. This is an important aspect of the globalization of Palestinian society. The method this article develops is applicable elsewhere.  Within interstitial frontiers, investors, whether local farmers or outsiders, enroll a globally maintained scientific discourse of efficient water use to secure donor funding. Meanwhile, they try developing clientelist ties with the authorities to secure their new access to water. The impacts on neighbouring, peasant-run irrigated systems, food security, housing security and many other mechanisms that sustain a society, are important and too often neglected

    DArT whole genome profiling provides insights on the evolution and taxonomy of edible Banana (Musa spp.)

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    Background and Aims: Dessert and cooking bananas are vegetatively propagated crops of great importance for both the subsistence and the livelihood of people in developing countries. A wide diversity of diploid and triploid cultivars including AA, AB, AS, AT, AAA, AAB, ABB, AAS and AAT genomic constitutions exists. Within each of this genome groups, cultivars are classified into subgroups that are reported to correspond to varieties clonally derived from each other after a single sexual event. The number of those founding events at the basis of the diversity of bananas is a matter of debate. Methods: We analysed a large panel of 575 accessions, 94 wild relatives and 481 cultivated accessions belonging to the section Musa with a set of 498 DArT markers previously developed. Key Results: DArT appeared successful and accurate to describe Musa diversity and help in the resolution of cultivated banana genome constitution and taxonomy, and highlighted discrepancies in the acknowledged classification of some accessions. This study also argues for at least two centres of domestication corresponding to South-East Asia and New Guinea, respectively. Banana domestication in New Guinea probably followed different schemes that those previously reported where hybridization underpins the emergence of edible banana. In addition, our results suggest that not all wild ancestors of bananas are known, especially in M. acuminata subspecies. We also estimate the extent of the two consecutive bottlenecks in edible bananas by evaluating the number of sexual founding events underlying our sets of edible diploids and triploids, respectively. Conclusions: The attribution of clone identity to each sample of the sets allowed the detection of subgroups represented by several sets of clones. Although morphological characterization of some of the accessions is needed to correct potentially erroneous classifications, some of the subgroups seem polyclonal

    Hybridization, missing wild ancestors and the domestication of cultivated diploid bananas

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    Hybridization and introgressions are important evolutionary forces in plants. They contribute to the domestication of many species, including understudied clonal crops. Here, we examine their role in the domestication of a clonal crop of outmost importance, banana (Musa ssp.). We used genome-wide SNPs generated for 154 diploid banana cultivars and 68 samples of the wild M. acuminata to estimate and geo-localize the contribution of the different subspecies of M. acuminata to cultivated banana. We further investigated the wild to domesticate transition in New Guinea, an important domestication center. We found high levels of admixture in many cultivars and confirmed the existence of unknown wild ancestors with unequal contributions to cultivated diploid. In New Guinea, cultivated accessions exhibited higher diversity than their direct wild ancestor, the latter recovering from a bottleneck. Introgressions, balancing selection and positive selection were identified as important mechanisms for banana domestication. Our results shed new lights on the radiation of M. acuminata subspecies and on how they shaped banana domestication. They point candidate regions of origin for two unknown ancestors and suggest another contributor in New Guinea. This work feed research on the evolution of clonal crops and has direct implications for conservation, collection, and breeding

    Somaclonal variation in clonal crops: containing the bad, exploring the good

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    Somaclonal variation describes random cellular changes in plants regenerated through tissue culture. It occurs in certain crops that undergo micropropagation and has been recorded in different explant sources, from leaves and shoots to meristems and embryos. In banana (Musa spp.), a clonal crop conserved in vitro, somaclonal variation has been observed after prolonged periods in tissue culture, resulting from an increase in subcultures performed on a given clone. According to scientific literature, variants, or off-types, often show characteristics such as abnormal growth and flower or fruit defects in frequencies ranging from 1% to 32%. This variation poses a problem for gene bank managers, whose mandate is to maintain the genetic integrity of their collections for research and breeding. In the case of the Bioversity International Musa Germplasm Transit Centre (ITC), stress during the in vitro process is minimized by various techniques and plants are regenerated after 10 years, making it a long and costly process. Identifying somaclonal variation at an early stage would be an ideal solution; however, this requires suitable molecular markers. Recent studies revealed that techniques such as direct DNA sequencing and single nucleotide olymorphisms (SNPs) are able to detect the underlying factors of somaclonal variation and are becoming more accessible. On the other hand, somaclonal variation can be beneficial as it allows the natural development of new varieties and supplies genetic stocks used for future genetic studies. Harnessing the diversity of somaclones is easier, faster and cheaper compared with other methods of crop improvement, al though it is also less predictable. So far, variants of crops such as apple, strawberry, potato and banana have been successfully adopted into global markets. In this chapter, we will discuss how to minimize the adverse effects of somaclonal variation while maximizing its benefits for greater crop diversity, with a particular focus on banana

    Sequencing of diverse mandarin, pummelo and orange genomes reveals complex history of admixture during citrus domestication

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    Cultivated citrus are selections from, or hybrids of, wild progenitor species whose identities and contributions to citrus domestication remain controversial. Here we sequence and compare citrus genomes-a high-quality reference haploid clementine genome and mandarin, pummelo, sweet-orange and sour-orange genomes-and show that cultivated types derive from two progenitor species. Although cultivated pummelos represent selections from one progenitor species, Citrus maxima, cultivated mandarins are introgressions of C. maxima into the ancestral mandarin species Citrus reticulata. The most widely cultivated citrus, sweet orange, is the offspring of previously admixed individuals, but sour orange is an F1 hybrid of pure C. maxima and C. reticulata parents, thus implying that wild mandarins were part of the early breeding germplasm. A Chinese wild 'mandarin' diverges substantially from C. reticulata, thus suggesting the possibility of other unrecognized wild citrus species. Understanding citrus phylogeny through genome analysis clarifies taxonomic relationships and facilitates sequence-directed genetic improvement
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