17 research outputs found
Physiotherapy treatment of patient with chronic lumbar intervertebral disk herniation with radiculopathy
Thesis title: Physiotherapy treatment of a patient with diagnosis of lumbar intervertebral disk herniation with radiculopathy. Název práce: Fyzioterapie pacienta s diagnózou herniace bederní meziobratlové ploténky s radikulopatií. Work placement: Ustředni Vojenská Nemocnice , Prague, 1200/1, 16200, Praha 6. Summary: The objective of this thesis is to illustrate a case study of a conservative treated patient with intervertebral disc herniation of the L5 segment, in chronic stage. In my thesis I attempt to reveal the nature of this pathology, analyze the medical interventions and demonstrate the physiotherapeutic approaches, rehabilitation plan and all the conducted procedures. This thesis is divided in two parts. The first comprises the theoretical part which includes the anatomy, kinesiology, physiology and biomechanics of the lumbar spine as well the diagnostic and therapeutic procedures and approaches. The second contains a health chart which depicts the medical history of my patient and a detailed report that clarifies the clinical practices applied. Key words: Disk herniation, intervertebral disk, chronic state, physiotherapy, rehabilitation, lumbar spine conservative treatment, deep core, functional trainFyzioterapieFakulta tělesné výchovy a sportuFaculty of Physical Education and Spor
Domain of Influence analysis: implications for Data Assimilation in space weather forecasting
Solar activity, ranging from the background solar wind to energetic coronal
mass ejections (CMEs), is the main driver of the conditions in the
interplanetary space and in the terrestrial space environment, known as space
weather. A better understanding of the Sun-Earth connection carries enormous
potential to mitigate negative space weather effects with economic and social
benefits. Effective space weather forecasting relies on data and models. In
this paper, we discuss some of the most used space weather models, and propose
suitable locations for data gathering with space weather purposes. We report on
the application of \textit{Representer analysis (RA)} and \textit{Domain of
Influence (DOI) analysis} to three models simulating different stages of the
Sun-Earth connection: the OpenGGCM and Tsyganenko models, focusing on solar
wind - magnetosphere interaction, and the PLUTO model, used to simulate CME
propagation in interplanetary space. Our analysis is promising for space
weather purposes for several reasons. First, we obtain quantitative information
about the most useful locations of observation points, such as solar wind
monitors. For example, we find that the absolute values of the DOI are
extremely low in the magnetospheric plasma sheet. Since knowledge of that
particular sub-system is crucial for space weather, enhanced monitoring of the
region would be most beneficial. Second, we are able to better characterize the
models. Although the current analysis focuses on spatial rather than temporal
correlations, we find that time-independent models are less useful for Data
Assimilation activities than time-dependent models. Third, we take the first
steps towards the ambitious goal of identifying the most relevant heliospheric
parameters for modelling CME propagation in the heliosphere, their arrival
time, and their geoeffectiveness at Earth.Comment: Accepted for publication at Frontiers in Astronomy and Space Science
EUropean Heliospheric FORecasting Information Asset 2.0
Aims: This paper presents a H2020 project aimed at developing an advanced space weather forecasting tool, combining the MagnetoHydroDynamic (MHD) solar wind and coronal mass ejection (CME) evolution modelling with solar energetic particle (SEP) transport and acceleration model(s). The EUHFORIA 2.0 project will address the geoeffectiveness of impacts and mitigation to avoid (part of the) damage, including that of extreme events, related to solar eruptions, solar wind streams, and SEPs, with particular emphasis on its application to forecast geomagnetically induced currents (GICs) and radiation on geospace. Methods: We will apply innovative methods and state-of-the-art numerical techniques to extend the recent heliospheric solar wind and CME propagation model EUHFORIA with two integrated key facilities that are crucial for improving its predictive power and reliability, namely (1) data-driven flux-rope CME models, and (2) physics-based, self-consistent SEP models for the acceleration and transport of particles along and across the magnetic field lines. This involves the novel coupling of advanced space weather models. In addition, after validating the upgraded EUHFORIA/SEP model, it will be coupled to existing models for GICs and atmospheric radiation transport models. This will result in a reliable prediction tool for radiation hazards from SEP events, affecting astronauts, passengers and crew in high-flying aircraft, and the impact of space weather events on power grid infrastructure, telecommunication, and navigation satellites. Finally, this innovative tool will be integrated into both the Virtual Space Weather Modeling Centre (VSWMC, ESA) and the space weather forecasting procedures at the ESA SSCC in Ukkel (Belgium), so that it will be available to the space weather community and effectively used for improved predictions and forecasts of the evolution of CME magnetic structures and their impact on Earth. Results: The results of the first six months of the EU H2020 project are presented here. These concern alternative coronal models, the application of adaptive mesh refinement techniques in the heliospheric part of EUHFORIA, alternative flux-rope CME models, evaluation of data-assimilation based on Karman filtering for the solar wind modelling, and a feasibility study of the integration of SEP models
EUropean Heliospheric FORecasting Information Asset 2.0
Aims: This paper presents a H2020 project aimed at developing an advanced space weather forecasting tool, combining the MagnetoHydroDynamic (MHD) solar wind and coronal mass ejection (CME) evolution modelling with solar energetic particle (SEP) transport and acceleration model(s). The EUHFORIA 2.0 project will address the geoeffectiveness of impacts and mitigation to avoid (part of the) damage, including that of extreme events, related to solar eruptions, solar wind streams, and SEPs, with particular emphasis on its application to forecast geomagnetically induced currents (GICs) and radiation on geospace. Methods: We will apply innovative methods and state-of-the-art numerical techniques to extend the recent heliospheric solar wind and CME propagation model EUHFORIA with two integrated key facilities that are crucial for improving its predictive power and reliability, namely (1) data-driven flux-rope CME models, and (2) physics-based, self-consistent SEP models for the acceleration and transport of particles along and across the magnetic field lines. This involves the novel coupling of advanced space weather models. In addition, after validating the upgraded EUHFORIA/SEP model, it will be coupled to existing models for GICs and atmospheric radiation transport models. This will result in a reliable prediction tool for radiation hazards from SEP events, affecting astronauts, passengers and crew in high-flying aircraft, and the impact of space weather events on power grid infrastructure, telecommunication, and navigation satellites. Finally, this innovative tool will be integrated into both the Virtual Space Weather Modeling Centre (VSWMC, ESA) and the space weather forecasting procedures at the ESA SSCC in Ukkel (Belgium), so that it will be available to the space weather community and effectively used for improved predictions and forecasts of the evolution of CME magnetic structures and their impact on Earth. Results: The results of the first six months of the EU H2020 project are presented here. These concern alternative coronal models, the application of adaptive mesh refinement techniques in the heliospheric part of EUHFORIA, alternative flux-rope CME models, evaluation of data-assimilation based on Karman filtering for the solar wind modelling, and a feasibility study of the integration of SEP models.</p
Ankle sprain - conservative versus operational treatment: A literary review
1 Abstract Title Ankle sprain, conservative versus operational treatment: A literature review Aim The main purpose of this thesis is to assess and review the efficacy of main types of conservative and surgical interventions applied on ankle sprain injuries, as also the factors that influence the clinical outcomes in patients undergoing the selected treatment procedures. Method This thesis is a literary research, reviewing articles from relevant journals and books. Information and data sources were retrieved from English, released between 1980 and 2016, using electronic databases and reference lists of articles. The following databases were searched for the highest possible amount of relevant articles, with an attempt to reduce publication and/or selection bias: PubMed, EMBASE, CINAHL, The Cochrane Library (Cochrane Database of Systematic Reviews), Web of science and Medline. Preliminary searches began at the inception of the project, and the full search was concluded in October 10th , 2016. A restriction for the type of publication (meta-analysis, systematic review, clinical trials, comparative trials, practice guidelines and case studies) was applied when allowed by the databases research tools. Results The analysis of the reviewed studies resulted that conservative treatment approaches is the main..
Physiotherapy treatment of patient with chronic lumbar intervertebral disk herniation with radiculopathy
Thesis title: Physiotherapy treatment of a patient with diagnosis of lumbar intervertebral disk herniation with radiculopathy. Název práce: Fyzioterapie pacienta s diagnózou herniace bederní meziobratlové ploténky s radikulopatií. Work placement: Ustředni Vojenská Nemocnice , Prague, 1200/1, 16200, Praha 6. Summary: The objective of this thesis is to illustrate a case study of a conservative treated patient with intervertebral disc herniation of the L5 segment, in chronic stage. In my thesis I attempt to reveal the nature of this pathology, analyze the medical interventions and demonstrate the physiotherapeutic approaches, rehabilitation plan and all the conducted procedures. This thesis is divided in two parts. The first comprises the theoretical part which includes the anatomy, kinesiology, physiology and biomechanics of the lumbar spine as well the diagnostic and therapeutic procedures and approaches. The second contains a health chart which depicts the medical history of my patient and a detailed report that clarifies the clinical practices applied. Key words: Disk herniation, intervertebral disk, chronic state, physiotherapy, rehabilitation, lumbar spine conservative treatment, deep core, functional trai
Synchrotron Radiation Maps from Relativistic MHD Jet Simulations
Relativistic jets from active galactic nuclei (AGN) often display a non-uniform structure and are, under certain conditions, susceptible to a number of instabilities. An interesting example is the development of non-axisymmetric, Rayleigh-Taylor type instabilities in the case of differentially rotating two-component jets, with the toroidal component of the magnetic field playing a key role in the development or suppression of these instabilities. We have shown that higher magnetization leads to stability against these non-axisymmetric instabilities. Using ray-casting on data from relativistic MHD simulations of two-component jets, we now investigate the effect of these instabilities on the synchrotron emission pattern from the jets. We recover many well known trends from actual observations, e.g., regarding the polarization fraction and the distribution of the position angle of the electric field, in addition to a different emitting region, depending on the stability of the jet
Synchrotron radiation maps from relativistic MHD jet simulations
© 2017 by the authors. Relativistic jets from active galactic nuclei (AGN) often display a non-uniform structure and are, under certain conditions, susceptible to a number of instabilities. An interesting example is the development of non-axisymmetric, Rayleigh-Taylor type instabilities in the case of differentially rotating two-component jets, with the toroidal component of the magnetic field playing a key role in the development or suppression of these instabilities. We have shown that higher magnetization leads to stability against these non-axisymmetric instabilities. Using ray-casting on data from relativisticMHDsimulations of two-component jets, we now investigate the effect of these instabilities on the synchrotron emission pattern from the jets. We recover many well known trends from actual observations, e.g., regarding the polarization fraction and the distribution of the position angle of the electric field, in addition to a different emitting region, depending on the stability of the jet.status: publishe
Rotation and toroidal magnetic field effects on the stability of two-component jets
© 2017 The Authors. Several observations of astrophysical jets show evidence of a structure in the direction perpendicular to the jet axis, leading to the development of 'spine and sheath' models of jets. Most studies focus on a two-component jet consisting of a highly relativistic inner jet and a slower - but still relativistic - outer jet surrounded by an unmagnetized environment. These jets are believed to be susceptible to a relativistic Rayleigh-Taylor-type instability, depending on the effective inertia ratio of the two components. We extend previous studies by taking into account the presence of a non-zero toroidal magnetic field. Different values of magnetization are examined to detect possible differences in the evolution and stability of the jet. We find that the toroidal field, above a certain level of magnetization σ, roughly equal to 0.01, can stabilize the jet against the previously mentioned instabilities and that there is a clear trend in the behaviour of the average Lorentz factor and the effective radius of the jet when we continuously increase the magnetization. The simulations are performed using the relativistic MHD module from the open source, parallel, grid adaptive, MPI-AMRVAC code.status: publishe