603 research outputs found
Emissões de óxido nitroso do solo em sistemas integrados de produção com lavoura-pecuária-floresta.
Fluxo de CO2, CH4 e N2O do solo em sistemas integrados (lavoura, pecuária e floresta) nos Campos Gerais do Paraná.
Magnetotransport properties in the magnetic phase of BaFeTAs (T = Co,Ni): A magnetic excitations approach
Because of their complex Fermi surfaces, the identification of the physical
phenomena contributing to electronic scattering in the Fe-based superconductors
is a difficult task. Here, we report on the electrical resistivity,
magnetoresistance, and Hall effect in two series of BaFeTAs (T
= Co, Ni) crystals with different values of . The T contents were chosen so
that the majority of the investigated samples present an intermediate
magnetically ordered state and a superconducting ground state. We interpret the
obtained results in terms of scattering of charge carriers by magnetic
excitations instead of describing them as resulting uniquely from effects
related to multiple-band conduction. Our samples are single crystals from the
structural point of view and their overall magnetotransport properties are
dominated by a single magnetic state
Detection and localization of double compression in MP3 audio tracks
In this work, by exploiting the traces left by double compression in the statistics of quantized modified discrete cosine transform coefficients, a single measure has been derived that allows to decide whether an MP3 file is singly or doubly compressed and, in the last case, to devise also the bit-rate of the first compression. Moreover, the proposed method as well as two state-of-the-art methods have been applied to analyze short temporal windows of the track, allowing the localization of possible tampered portions in the MP3 file under analysis. Experiments confirm the good performance of the proposed scheme and demonstrate that current detection methods are useful for tampering localization, thus offering a new tool for the forensic analysis of MP3 audio tracks
Levantamento fitossociológico de plantas daninhas em canola semeada em diferentes espaçamentos.
Características agronômicas da canola em diferentes espaçamentos entre linhas e densidades de plantas.
Current management strategies for patellofemoral pain: an online survey of 99 practising UK physiotherapists
Background: Patellofemoral pain (PFP) is considered one of the commonest forms of knee pain. This study aimed to identify how physiotherapists in the United Kingdom (UK) currently manage patellofemoral pain (PFP), particularly in relation to exercise prescription, and response to pain.
Methods: An anonymous survey was designed with reference to previous surveys and recent systematic reviews. Practising UK physiotherapists who treat patients with PFP were invited to take part via an invitation email sent through professional networks, the ‘interactive Chartered Society of Physiotherapy (iCSP)’ message board, and social media (Twitter). Descriptive statistics were used to analyse the data.
Results: A total of 99 surveys were completed. Responders reported a wide range of management strategies, including a broad selection of type and dose of exercise prescription. The five most common management strategies chosen were: closed chain strengthening exercises (98%); education and advice (96%); open chain strengthening exercises (76%); taping (70%) and stretches (65%). Physiotherapists with a special interest in treating PFP were statistically more likely to manage patients with orthotics (P=0.02) and bracing (P=0.01) compared to physiotherapists without a special interest. Approximately 55% would not prescribe an exercise if it was painful. Thirty-one percent of physiotherapists would advise patients not to continue with leisure and/or sporting activity if they experienced any pain.
Conclusion: Current UK practice in the management strategies of PFP is variable. Further high quality research on which to inform physiotherapy practice is warranted for this troublesome musculoskeletal condition
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