Mathematical modelling – tool to diagnosis of human apparatus

There is presented a model of human gait based on power developed by muscle joints in this paper. The mathematical model was presented for healthy subjects, patients with gonarthrosis and patients with Anterior Cruciate Ligaments (ACL). The regression function and the stochastic approximation function were used to the modeling. The differences between the values of model’s coefficients of people with these two pathologies have been compared to the model’s coefficients of healthy subjects. Proposed model is very accurate. The modeling could help to define the level of gait pathology and treatment in a large number of patient

Different techniques for EMG signal processing

Electromyography signal can be used for biomedical applications. It is complicated in interpretation, so it acquires advanced methods for detection, decomposition, processing, and classification. The techniques of EMG signal analysis such as: filtering, wavelet transform, and modeling will be presented in this paper to provide efficient and effective ways of understanding the signal. A comparison study is also given to show performance of various EMG signal analysis methods. This paper provides researchers a good understanding of EMG signal and its analysis procedures. This knowledge will help to develop more flexible and efficient application

The suboptimal set of parameters describing human gait

The influence of choosing a set of parameters describing human gait for automatic gait analysis and assessment has been presented in this paper. The investigations were based on three sets of parameters and two different classificators. The conclusion is that the best set of parameters is set of coefficients which have been obtained by modelling of human gait by means of identification using the regression functio

Light-by-light scattering sum rules constraining meson transition form factors

Relating the forward light-by-light scattering to energy weighted integrals of the \gamma* \gamma -fusion cross sections, with one real photon (\gamma) and one virtual photon (\gamma*), we find two new exact super-convergence relations. They complement the known super-convergence relation based on the extension of the GDH sum rule to the light-light system. We also find a set of sum rules for the low-energy photon-photon interaction. All of the new relations are verified here exactly at leading order in scalar and spinor QED. The super-convergence relations, applied to the \gamma* \gamma -production of mesons, lead to intricate relations between the \gamma \gamma -decay widths or the \gamma* \gamma -transition form factors for (pseudo-) scalar, axial-vector and tensor mesons. We discuss the phenomenological implications of these results for mesons in both the light-quark sector and the charm-quark sector.Comment: 32 pages, 7 figure

Mathematical modelling – tool to diagnosis of human apparatus

There is presented a model of human gait based on power developed by muscle joints in this paper. The mathematical model was presented for healthy subjects, patients with gonarthrosis and patients with Anterior Cruciate Ligaments (ACL). The regression function and the stochastic approximation function were used to the modeling. The differences between the values of model’s coefficients of people with these two pathologies have been compared to the model’s coefficients of healthy subjects. Proposed model is very accurate. The modeling could help to define the level of gait pathology and treatment in a large number of patient

Analyticity constraints for hadron amplitudes : going high to heal low energy issues

Analyticity constitutes a rigid constraint on hadron scattering amplitudes. This property is used to relate models in different energy regimes. Using meson photoproduction as a benchmark, we show how to test contemporary low-energy models directly against high-energy data. This method pinpoints deficiencies of the models and treads a path to further improvement. The implementation of this technique enables one to produce more stable and reliable partial waves for future use in hadron spectroscopy and new physics searches

Determination of the pole position of the lightest hybrid meson candidate

Mapping states with explicit gluonic degrees of freedom in the light sector is a challenge, and has led to controversies in the past. In particular, the experiments have reported two different hybrid candidates with spin-exotic signature, pi1(1400) and pi1(1600), which couple separately to eta pi and eta' pi. This picture is not compatible with recent Lattice QCD estimates for hybrid states, nor with most phenomenological models. We consider the recent partial wave analysis of the eta(') pi system by the COMPASS collaboration. We fit the extracted intensities and phases with a coupled-channel amplitude that enforces the unitarity and analyticity of the S-matrix. We provide a robust extraction of a single exotic pi1 resonant pole, with mass and width 1564 +- 24 +- 86 MeV and 492 +- 54 +- 102 MeV, which couples to both eta(') pi channels. We find no evidence for a second exotic state. We also provide the resonance parameters of the a2(1320) and a2'(1700).Comment: 6 pages + 3 pages of supplemental material. Version to appear on Phys.Rev.Let

Correction of planovalgus deformity through rotational reinsertion of the lateral layers of the achilles tendons in ambulatory children with cerebral palsy

Achilles tendon, cerebral palsy, foot pressure, planovalgus, surger

Towards breeding less allergenic spelt-wheat with low fodmap content — A review

Consumption of “gluten-containing” diet causes disease for a significant minority of people who consume foods derived from wheat, rye, barley, and possibly oat. The fact is, however, that in several types of diseases related to the consumption of “gluten-containing” cereals, the trigger compounds are not components of gluten. The current view of medical experts is that, excluding people suffering from celiac disease, the majority of individuals who are feeling better on the “wheat-free” or “gluten-free” diet could select a food containing much healthier, low level of fermentable oligosaccharides (often called as FODMAP). To satisfy the specific health related demands of certain consumer groups, the challenge is in front of cereal breeding to develop new, “healthier” germplasms, suitable to produce such products by the food industry. This report aims to give an overview of some aspects of recent developments in this booming area, (i) summarizing the up-to-date knowledge on cereals-related health disorders; (ii) reporting on the status of developing celiac-safe cereals, and finally (iii) highlighting the potential of developing “healthier” spelt-based cereal products through the progress in an ongoing spelt breeding program