Search results for "BALANCE"

Body balance and postural control in patients with dizziness

2021

The ability to maintain body balance and postural control is regulated by a central integration process of afferent inputs received from peripheral sensory components such as the somatosensory, visual, and vestibular apparatus, which control the tonic postural system by modulating efferent information. It is widely recognized that stimuli from the visual and the vestibular systems provide information on the position of the head relative to the trunk and contribute to the orientation and the movement of the body in the environment. For these reasons, the vestibular system plays a key role in controlling body balance. Indeed, several studies have shown the presence of imbalance, postural inst…

Constitutional developments in Latin American abortion law.

2016

Abstract For most of the 20th Century, restrictive abortion laws were in place in continental Latin America. In recent years, reforms have caused a liberalizing shift, supported by constitutional decisions of the countries’ high courts. The present article offers an overview of the turn toward more liberal rules and the resolution of abortion disputes by reference to national constitutions. For such purpose, the main legal changes of abortion laws in the last decade are first surveyed. Landmark decisions of the high courts of Argentina, Bolivia, Colombia, and Mexico are then analyzed. It is shown that courts have accepted the need to balance interests and competing rights to ground less res…

El capitalismo, contra el planeta / 5

2007

Alternating model trees

2015

Model tree induction is a popular method for tackling regression problems requiring interpretable models. Model trees are decision trees with multiple linear regression models at the leaf nodes. In this paper, we propose a method for growing alternating model trees, a form of option tree for regression problems. The motivation is that alternating decision trees achieve high accuracy in classification problems because they represent an ensemble classifier as a single tree structure. As in alternating decision trees for classification, our alternating model trees for regression contain splitter and prediction nodes, but we use simple linear regression functions as opposed to constant predicto…

Rethinking Regional Competitiveness: Catalonia's International and Interregional Trade 1995-2006

2009

Studies of competitiveness tend to focus on a local economy's global interactions, particularly its international trade. But for countries that are at least mid-sized (such as Spain), interregional trade tends to be as large as or significantly larger than international trade. The case of Catalonia illustrates the importance of interregional flows in truly analyzing and devising strategies for a region's external competitiveness. Accounting for interregional trade changes and performing analyses of Catalonia's overall merchandise trade balance, which sectors generate external surpluses as opposed to deficits, and who Catalonia's key trading partners are, and the use of a gravity-model appro…

Corresponding-pair procedure: a new approach to simulation of dichromatic color perception.

2004

The dichromatic color appearance of a chromatic stimulus T can be described if a stimulus S is found that verifies that a normal observer experiences the same sensation viewing S as a dichromat viewing T. If dichromatic and normal versions of the same color vision model are available, S can be computed by applying the inverse of the normal model to the descriptors of T obtained with the dichromatic model. We give analytical form to this algorithm, which we call the corresponding-pair procedure. The analytical form highlights the requisites that a color vision model must verify for this procedure to be used. To show the capabilities of the method, we apply the algorithm to different color vi…

CFD simulation of ZnO nanoparticle precipitation in a supercritical water synthesis reactor

2012

International audience; Continuous hydrothermal flow synthesis process has shown great advantages concerning the control of particle size and morphology through the optimization of supercritical water processing parameters. In particular, micromixing is a key issue of the process for controlling the nucleation mechanism. A Computational Fluid Dynamics (CFD) model is suggested for nanoparticle size determination using a population balance approach. Models for reaction kinetics, thermodynamics, nucleation and growth are presented. The effects of base concentration and hydrodynamics are investigated. Results show that the CFD may be valuable simulation tool for controlling the size and the sha…

Mr-Proadm Elevation Upon Icu Admission Predicts the Outcome of Septic Patients and is Correlated with Upcoming Fluid Overload.

2017

IF 3.113; International audience; Background: Among septic patients admitted to the intensive care unit (ICU), early recognition of those with the highest risk of death is of paramount importance. We evaluated the prognostic value of Procalcitonin (PCT), mid regional-proadrenomedullin (MR-proADM), copeptine and CT-proendothelin 1 (CT-ProET 1) concentrations. Methods: This was a prospective cohort study, which included 173 septic patient admitted to one ICU. Blood samples for biomarker measure-ments were obtained upon admission and on day 5. The predictive value of each biomarker regarding the risk of death at day 28 was assessed. The fluid balance was evaluated from admission to day 5. Resu…

Calcium Metabolism in the Elderly

1998

Mineral homeostasis represents one of the multiple areas at risk in the elder population. This includes the ion calcium, which is the most abundant inorganic element in the human body and an essential key for many physiologic processes (1).

Energy compensation and adiposity in humans

2021

Publisher Copyright: © 2021 The Authors Understanding the impacts of activity on energy balance is crucial. Increasing levels of activity may bring diminishing returns in energy expenditure because of compensatory responses in non-activity energy expenditures.1–3 This suggestion has profound implications for both the evolution of metabolism and human health. It implies that a long-term increase in activity does not directly translate into an increase in total energy expenditure (TEE) because other components of TEE may decrease in response—energy compensation. We used the largest dataset compiled on adult TEE and basal energy expenditure (BEE) (n = 1,754) of people living normal lives to fi…