Results 71 to 80 of about 35,280,093 (311)

Exercise Modifies the Gut Microbiota with Positive Health Effects

Oxidative Medicine and Cellular Longevity, 2017
The human gastrointestinal tract (GIT) is inhabited by a wide cluster of microorganisms that play protective, structural, and metabolic functions for the intestinal mucosa. Gut microbiota is involved in the barrier functions and in the maintenance of its
V. Monda, I. Villano, A. Messina, A. Valenzano, T. Esposito, Fiorenzo Moscatelli, A. Viggiano, G. Cibelli, S. Chieffi, M. Monda, G. Messina   +10 more
semanticscholar   +1 more source

Optimizing positively dominated systems [PDF]

2012 IEEE 51st IEEE Conference on Decision and Control (CDC), 2012
It has recently been shown that several classical open problems in linear system theory, such as optimization of decentralized output feedback controllers, can be readily solved for positive systems using linear programming. In particular, optimal solutions can be verified for large-scale systems using computations that scale linearly with the number ...
openaire   +2 more sources

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Commentary: New View on Treatment of Drug Dependence

Basic and Clinical Neuroscience, 2014
In the 1960s, discovery of pleasure system (defined as reward system) in the brain that may underlie drug reward and addiction encouraged many scientists to investigate the mechanisms by which drug abuse affects central nervous system function.
Mina Ranjbaran, Hedayat Sahraei
doaj  

Development of a Positive Lubrication System for Space Application

Tribology Online, 2010
The success of a spacecraft mission depends to a great extent on the performance of the moving mechanical systems. The most common mode of failure in these systems is tribological.
Krishnan Sathyan, Konchady Gopinath, Hung-Yao Hsu, Sang Heon Lee   +3 more
doaj   +1 more source

Distributed control of positive systems [PDF]

IEEE Conference on Decision and Control and European Control Conference, 2011
A system is called positive if the set of non-negative states is left invariant by the dynamics. Stability analysis and controller optimization are greatly simplified for such systems. For example, linear Lyapunov functions and storage functions can be used instead of quadratic ones.
openaire   +3 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Simulation of Positive Problems in Three Dimensional ECT System

Journal of Harbin University of Science and Technology, 2019
Electrical capacitance tomography (ECT) has many advantages, such as noninvasion, antiinterference, and security In the past, the ECT system can only obtain twodimensional images of fluid, and the threedimensional images formed by the accumulation ...
LI Yan, LI Xiang-yu, YU Dao-yang
doaj   +1 more source