Determining the Rates of α-Tocopherol Movement in DPPC Vesicles Using Small Angle Neutron Scattering.

α-Tocopherol (αtoc, vitamin E) is an essential nutrient sufficiently acquired through a balanced diet. This fat-soluble vitamin is most known for its antioxidative properties, however, its fundamental mechanism of action in cellular membranes remains unknown. To this end, we use time-resolved small angle neutron scattering (TR-SANS) and a contrast matching scheme to determine intervesicular exchange (k) and intrabilayer flip-flop (k) rates of αtoc in 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) vesicles.

Weight Loss and Regain After Bariatric Surgery: Importance of the Psychological Therapy in Postoperative Outcomes.

Background: Obesity is a chronic disease constituting a public health issue, and its prevalence is alarmingly on the rise worldwide. This disease represents a chronic and multifactorial condition, one of the factors being related to the psychological aspect of the patients. Bariatric is an effective tool for obesity control, with weight regain observed more frequently between the third and sixth postoperative years.

[Prevalence and evolution of left ventricular insufficiency in patients undergoing severe aortic insufficiency].

Introduction: Aortic insufficiency (AR) evolves during follow-up with dilation of the left chambers and eventually with deterioration of the ejection fraction (EF). Treatment as well as evolution of EF after the procedure remains uncertain. The objective of the following work was to establish the prevalence of ventricular dysfunction and evaluate the evolution of EF at 6 months in patients with aortic valve replacement (AVR) due to AR.

The Plasmodium circumsporozoite protein.

The circumsporozoite protein (CSP) is one of the most studied proteins of the malaria parasite. It is the target of the only licensed malaria vaccines and is essential for sporozoite formation and infectivity. Yet, the mechanisms by which CSP functions and its interactions with other proteins are only beginning to be understood.

Modern hardware accelerated point based holography.

This paper presents a novel method for accelerating the computationally intensive process of point-based holography using consumer grade hardware. By leveraging the parallel processing capabilities of graphics processing units (GPUs) and implementing optimization techniques, the proposed method significantly reduces the time required to generate complex holograms. A comprehensive analysis - including benchmarks and comparative studies - demonstrates the efficiency and effectiveness of this approach.