17,225 results match your criteria: "Institut universitaire.[Affiliation]"

Attention is key to perception and human behavior, and evidence shows that it periodically samples sensory information (<20Hz). However, this view has been recently challenged due to methodological concerns and gaps in our understanding of the function and mechanism of rhythmic attention. Here we used an intensive ∼22-hour psychophysical protocol combined with reverse correlation analyses to infer the neural representation underlying these rhythms.

View Article and Find Full Text PDF

Magnetic resonance imaging (MRI) is one of the most commonly used tools in neuroscience. However, it implies exposure to high noise levels. Exposure to noise can lead to temporary or permanent hearing loss, especially when the exposure is long and/or repeated.

View Article and Find Full Text PDF

Vortex beams are currently drawing a great deal of interest, from fundamental research to several promising applications. While their generation in bulky optical devices limits their use in integrated complex systems, metasurfaces have recently proven successful in creating optical vortices, especially in the linear regime. In the nonlinear domain, of strategic importance for the future of classical and quantum information, to date orbital angular momentum has only been created in qualitative ways, without discussing discrepancies between design and experimental results.

View Article and Find Full Text PDF

The worldwide prevalence of obesity is a key factor involved in the epidemic proportions reached by chronic societal diseases. A revolution in the study of obesity has been the development of imaging techniques for the measurement of its regional distribution. These imaging studies have consistently reported that individuals with an excess of visceral adipose tissue (VAT) were those characterized by the highest cardiometabolic risk.

View Article and Find Full Text PDF

Background: Antiplatelet drugs represent potential candidates for protecting the penumbral microcirculation during cerebral ischemia and improving the benefits of arterial recanalization in ischemic stroke. Yet while the efficacy of such adjuvant strategies has been shown to be highly time dependent, antiplatelet therapy at the acute phase of ischemic stroke cannot be envisioned until the diagnosis of stroke and its ischemic nature have been confirmed because of the presumed risk of worsening bleeding in case of intracranial hemorrhage (ICH). Here, we investigated this risk for 2 antiplatelet drugs currently being tested in clinical trials for ischemic stroke, glenzocimab and eptifibatide, in 2 mouse models of ICH.

View Article and Find Full Text PDF

This consensus on primary hyperparathyroidism, drawn up under the aegises of the French Society of Endocrinology (SFE), French Association of Endocrine Surgery (AFCE) and French Society of Nuclear Medicine (SFMN), provides an update on positive, etiological and differential diagnosis and treatment in primary hyperparathyroidism. These recommendations take account of recent increase in the prevalence of primary hyperparathyroidism, due to 1. more systematic routine measurement of blood calcium and improved quality of parathyroid hormone assays, 2.

View Article and Find Full Text PDF

Chapter 10: What parathyroid imaging is required for hyprepratahyroidism?

Ann Endocrinol (Paris)

January 2025

Federation d'endocrinologie, hopital Louis Pradel, hospices civils de Lyon, université Lyon 1, 28, avenue Doyen-Lépine, 69500 Bron, France. Electronic address:

In over 80% of cases, primary hyperparathyroidism results from hypersecretion of PTH by a single parathyroid adenoma. Multi-glandular involvement, combining adenoma and/or hyperplasia in varying proportions, is also possible, although less frequent. When the diagnosis of hyperparathyroidism is certain and surgery is envisaged, imaging is useful for locating the hyperfunctioning gland or glands.

View Article and Find Full Text PDF

Intensive interdisciplinary specialized rehabilitation or regular physiotherapy for multiple sclerosis? A randomised controlled trial with economic evaluation.

Ann Phys Rehabil Med

January 2025

Physical and Rehabilitation medicine Department, Raymond Poincaré Hospital, GHU Paris Saclay, APHP, 104 Bld Raymond Poincaré, Garches, France; End: icap laboratory, Inserm Unit 1179, UVSQ, 2 Av. de la Source de la Bièvre, Montigny-le-Bretonneux, France.

Background: The benefits of Interdisciplinary Rehabilitation in an Outpatient Specialised Unit (IROSU) have not been determined.

Objectives: To compare the effects of IROSU and physiotherapy in the community on impairment, function and Quality Of Life (QoL) in people with Multiple Sclerosis (pwMS) and to determine the medico-economic impact.

Methods: Pragmatic, multicentre, parallel, randomized (centralised computer-generated randomisation) controlled trial.

View Article and Find Full Text PDF

Background: Since the onset of the COVID-19 pandemic, the scientific community has been concerned about the high rates of psychological distress among adolescents. The pandemic not only tested adolescents' adaptation, but also disrupted key areas of their development. This demonstrates the need to study their psychological adjustment over time during this critical period to better guide services.

View Article and Find Full Text PDF

Photochromic Sodalites: From Natural Minerals to Advanced Applied Materials.

Acc Chem Res

January 2025

Mineralogical Society of Antwerp, Boterlaarbaan 225, 2100 Deurne, Belgium.

ConspectusWhile photochromic natural sodalites, an aluminosilicate mineral, were originally considered as curiosities, articles published in the past ten years have radically changed this perspective. It has been proven that their artificial synthesis was easy and allowed compositional tuning. Combined with simulations, it has been shown that a wide range of photochromic properties were achievable for synthetic sodalites (color, activation energy, reversibility, etc.

View Article and Find Full Text PDF

Genome-wide association studies (GWAS) have identified genetic variants robustly associated with asthma. A potential near-term clinical application is to calculate polygenic risk score (PRS) to improve disease risk prediction. The value of PRS, as part of numerous multi-source variables used to define asthma, remains unclear.

View Article and Find Full Text PDF

Cells display a range of mechanical activities generated by motor proteins powered through catalysis. This raises the fundamental question of how the acceleration of a chemical reaction can enable the energy released from that reaction to be transduced (and, consequently, work to be done) by a molecular catalyst. Here we demonstrate the molecular-level transduction of chemical energy to mechanical force in the form of the powered contraction and powered re-expansion of a cross-linked polymer gel driven by the directional rotation of artificial catalysis-driven molecular motors.

View Article and Find Full Text PDF

It is under debate whether intersubjectivity-the capacity to experience a sense of togetherness around an action-is unique to humans. In humans, heavy tickling-a repeated body probing play that causes an automatic response including uncontrollable laughter (gargalesis)-has been linked to the emergence of intersubjectivity as it is aimed at making others laugh (self-generated responses are inhibited), it is often asymmetrical (older to younger subjects), and it elicits agent-dependent responses (pleasant/unpleasant depending on social bond). Intraspecific tickling and the related gargalesis response have been reported in humans, chimpanzees, and anecdotally in other great apes, potentially setting the line between hominids and other anthropoids.

View Article and Find Full Text PDF

Cytoplasmic male sterility (CMS) originates from a mito-nuclear conflict where mitochondrial genes induce male sterility and nuclear genes restore male fertility in hermaphrodites. The first observation of CMS in animals was reported recently in the freshwater snail where it is associated with two extremes divergent mitotypes D and K. The D individuals are male-steriles while male fertility is restored by nuclear genes in K and are found mixed with the most common male-fertile N mitotype in natural populations (i.

View Article and Find Full Text PDF

PURPOSE OF REVIEW: Narrative review of the author's main contributions to the field of cardiovascular health spanning four decades, with a focus on findings related to 1- the pathophysiology of obesity, insulin resistance, type 2 diabetes and cardiovascular disease, and 2- the management/prevention of these conditions. Particular attention is given to the importance of regular physical activity. RECENT FINDINGS: Because behaviors and their physiological consequences are still not measured in clinical practice, it is proposed to systematically assess and target "lifestyle vital signs" (waist circumference, cardiorespiratory fitness, food-based diet quality and level of leisure-time physical activity) in primary care.

View Article and Find Full Text PDF

Dysfunctional eating attitudes and behaviors among athletes: The role and potential of virtual reality.

Encephale

January 2025

Unité de recherche Loricorps, centre de recherche de l'institut universitaire en santé mentale de Montréal (CR-IUSMM), 7331, rue Hochelaga, QC H1N 3V2 Montréal, Canada; Département des Sciences de l'éducation, université du Québec à Trois-Rivières, 3351, boulevard des Forges, QC G8Z 4M3 Trois-Rivières, Canada. Electronic address:

This brief article discusses the current state of knowledge on the use of virtual reality in assessing and/or treating body image and body image disturbances among athletes with dysfunctional eating attitudes and behaviors ( i.e., eating disorders and disordered eating).

View Article and Find Full Text PDF

The stoichiometry of the α4β2 neuronal nicotinic acetylcholine receptors determines the pharmacological properties of the neonicotinoids, and recently introduced butenolide and sulfoximine.

Neurotoxicology

January 2025

Laboratoire Physiologie, Ecologie et Environnement (P2E), Université d'Orléans, UR 1207, USC-INRAE 1328, 1 rue de Chartres, Orléans 45067, France; Institut Universitaire de France (IUF), 1 rue Descartes, Paris 75005, France. Electronic address:

Although neonicotinoids were considered safe for mammals for many decades, recent research has proven that these insecticides can alter cholinergic functions by interacting with neuronal nicotinic acetylcholine (ACh) receptors (nAChRs). One such receptor is the heteromeric α4β2 nAChR, which exists under two different stoichiometries: high sensitivity and low sensitivity α4β2 nAChRs. To replace these insecticides, new classes of insecticides have been developed, such as, sulfoximine, sulfoxaflor, and the butenolide, flupyradifurone.

View Article and Find Full Text PDF

Background: The COVID-19 pandemic necessitated the rapid availability of evidence to respond in a timely manner to the needs of practice settings and decision-makers in health and social services. Now that the pandemic is over, it is time to put in place actions to improve the capacity of systems to meet knowledge needs in a situation of crisis. The main objective of this project was thus to develop an action plan for the rapid syntheses of evidence in times of health crisis in Quebec (Canada).

View Article and Find Full Text PDF

Profiles of physician follow-up care, correlates and outcomes among patients affected by an incident mental disorder.

BMC Prim Care

January 2025

Département de psychiatrie, Centre de recherche de l'Institut universitaire en santé mentale de Montréal, Université de Montréal, Montreal, QC, Canada.

Objectives: This study identified profiles of outpatient physician follow-up care and other practice features, mostly after detection of incident mental disorders (MD), and associated these profiles with patient characteristics and subsequent adverse outcomes.

Methods: A cohort of 170,957 patients age 12 + with a new or recurrent MD detected in 2019-20 was investigated based on data from the Quebec Integrated Chronic Disease Surveillance System. Latent class analysis was performed to identify follow-up care profiles, mostly within one year of MD detection.

View Article and Find Full Text PDF
Article Synopsis
  • Deep learning methods show strong potential for predicting lung cancer risk from CT scans, but there's a need for more comprehensive comparisons and validations of these models in real-world settings.
  • The study reviews 21 state-of-the-art deep learning models, analyzing their performance using CT scans from a subset of the National Lung Screening Trial, with a focus on malignant versus benign classification.
  • Results reveal that 3D deep learning models generally outperformed 2D models, with the best 3D model achieving an AUROC of 0.86 compared to 0.79 for the best 2D model, emphasizing the need to choose appropriate pretrained datasets and model types for effective lung cancer risk prediction.
View Article and Find Full Text PDF

Hypertensive response to exercise (HRE) is an established risk factor for cardiovascular events. HRE is prevalent among people with excess adiposity. Both obesity and HRE have been individually associated with adverse cardiac remodeling.

View Article and Find Full Text PDF

Number and space are inherently related. Previous research has provided evidence that numbers are aligned to a so-called "mental number line", which is malleable and affected by cultural factors mostly linked to literacy-related habits. However, preverbal humans and non-human animals also map numerosities into space, in a consistent left-to-right direction.

View Article and Find Full Text PDF