IEEE Trans Neural Syst Rehabil Eng
September 2024
The inherent redundancy of the musculoskeletal systems is traditionally solved by optimizing a cost function. This approach may not be correct to model non-adult or pathological populations likely to adopt a "non-optimal" motor control strategy. Over the years, various methods have been developed to address this limitation, such as the stochastic approach.
View Article and Find Full Text PDFThis review paper provides an overview of the approaches to model neuromuscular control, focusing on methods to identify nonoptimal control strategies typical of populations with neuromuscular disorders or children. Where possible, the authors tightened the description of the methods to the mechanisms behind the underlying biomechanical and physiological rationale. They start by describing the first and most simplified approach, the reductionist approach, which splits the role of the nervous and musculoskeletal systems.
View Article and Find Full Text PDFHealth care for patients with serious illnesses usually implies the need to make a large number of decisions, ranging from how information is shared to which diagnostic or therapeutic procedures will be adopted. The method of such decision-making has important implications from an individual and collective point of view and may contribute to either relieving or aggravating suffering. In this consensus document, the Bioethics Committee of the Brazilian National Academy of Palliative Care (ANCP) and the Permanent Committee on Palliative Care of the Brazilian Geriatrics and Gerontology Society (SBGG) adopt the principles of compassionate listening proposed by Saunders, of the nature of suffering proposed by Cassel, of dignity-preserving care proposed by Chochinov, and of cultural humility as a starting point for the construction of an official position of ANCP and SBGG on shared decision-making in palliative care.
View Article and Find Full Text PDFEur Phys J C Part Fields
July 2022
DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6 6 6 m liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019-2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light.
View Article and Find Full Text PDFObjective: Peripherally inserted central catheters (PICC) guarantee a stable and safe vascular access to administer irritants or vesicants therapies. However, they may occasionally be affected by relevant thrombotic complications especially in patients with hypercoagulability such as oncological patients. Among the identification of independent risk factors, the role of body mass index (BMI) ≥25 kg/m is now emerging in literature with conflicting results.
View Article and Find Full Text PDFStem cell therapy is a promising treatment for the regeneration of myocardial tissue injured by an ischemic event. Mathematical modeling of myocardial regeneration via stem cell therapy is a challenging task, since the mechanisms underlying the processes involved in the treatment are not yet fully understood. Many aspects must be accounted for, such as the spread of stem cells and nutrients, chemoattraction, cell proliferation, stages of cell maturation, differentiation, angiogenesis, stochastic effects, just to name a few.
View Article and Find Full Text PDFBackground: The co-occurrence of chronic pain and sleep disturbance contribute to a significant functional and social impact in older adults. However, there are no validated instruments to measure sleep disturbance and pain in this population that could be used to screen or diagnose individuals or monitor treatment effectiveness.
Objective: Our aim was to develop and validate a brief, practical, and comprehensive tool to assess the impact of co-occurring pain and sleep disturbance in older adults.
Background: Proper specimen collection is central to improving patient care by ensuring optimal yield of diagnostic tests, guiding appropriate management, and targeting treatment. The purpose of this article is to describe the development and implementation of a training-of-trainers educational program designed to improve clinical culture specimen collection among healthcare personnel (HCP) in Ethiopia.
Methods: A Clinical Specimen Collection training package was created consisting of a Trainer's Manual, Reference Manual, Assessment Tools, Step-by-Step Instruction Guides (i.
The study and imitation of the biological and mechanical systems present in nature and living beings always have been sources of inspiration for improving existent technologies and establishing new ones. Pursuing this line of thought, we consider an artificial graft typical in the bone reconstruction surgery with the same microstructure of the bone living tissue and examine the interaction between these two phases, namely bone and the graft material. Specifically, a visco-poroelastic second gradient model is adopted for the bone-graft composite system to describe it at a macroscopic level of observation.
View Article and Find Full Text PDFThe CUORE experiment, a ton-scale cryogenic bolometer array, recently began operation at the Laboratori Nazionali del Gran Sasso in Italy. The array represents a significant advancement in this technology, and in this work we apply it for the first time to a high-sensitivity search for a lepton-number-violating process: ^{130}Te neutrinoless double-beta decay. Examining a total TeO_{2} exposure of 86.
View Article and Find Full Text PDFWe apply to Michaelis-Menten kinetics an alternative approach to the study of Singularly Perturbed Differential Equations, that is based on the Renormalization Group (SPDERG). To this aim, we first rebuild the perturbation expansion for Michaelis-Menten kinetics, beyond the standard Quasi-Steady-State Approximation (sQSSA), determining the 2nd order contributions to the inner solutions, that are presented here for the first time to our knowledge. Our main result is that the SPDERG 2nd order uniform approximations reproduce the numerical solutions of the original problem in a better way than the known results of the perturbation expansion, even in the critical matching region.
View Article and Find Full Text PDFWe report the results of a search for neutrinoless double-beta decay in a 9.8 kg yr exposure of (130)Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are 5.
View Article and Find Full Text PDFThe Briggs-Haldane standard quasi-steady state approximation and the resulting rate expressions for enzyme driven biochemical reactions provide crucial theoretical insight compared to the full set of equations describing the reactions, mainly because it reduces the number of variables and equations. When the enzyme is in excess of the substrate, a significant amount of substrate can be bound in intermediate complexes, so-called substrate sequestration. The standard quasi-steady state approximation is known to fail under such conditions, a main reason being that it neglects these intermediate complexes.
View Article and Find Full Text PDFRecently the application of the quasi-steady-state approximation (QSSA) to the stochastic simulation algorithm (SSA) was suggested for the purpose of speeding up stochastic simulations of chemical systems that involve both relatively fast and slow chemical reactions [Rao and Arkin, J. Chem. Phys.
View Article and Find Full Text PDFThe validity of the Michaelis-Menten-Briggs-Haldane approximation for single enzyme reactions has recently been improved by the formalism of the total quasi-steady-state approximation. This approach is here extended to fully competitive systems, and a criterion for its validity is provided. We show that it extends the Michaelis-Menten-Briggs-Haldane approximation for such systems for a wide range of parameters very convincingly, and investigate special cases.
View Article and Find Full Text PDFOphthalmic Plast Reconstr Surg
May 2004
Purpose: To demonstrate that injection of botulinum toxin type A is less painful when mixed with preserved saline compared with the suggested preservative-free saline reconstitution.
Methods: Two different injections were compared on 20 patients who had prior botulinum toxin type A treatments. Each side was injected with toxin reconstituted with either preserved or nonpreserved (0.
The differential cross section, dsigma/dt, for omega meson exclusive photoproduction on the proton above the resonance region (2.6
Minerva Cardioangiol
December 1963
Rass Med Ind Ig Lav
November 1998