Results 51 to 60 of about 9,324,290 (200)

Warming modulates soil multifunctionality through assembly processes and co‐occurrence patterns of arbuscular mycorrhizal fungal communities in drylands

Functional Ecology, Volume 39, Issue 9, Page 2251-2267, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Climate warming poses a threat to the functionality of global dryland ecosystems, where arbuscular mycorrhizal fungal (AMF) communities play a critical role in maintaining ecosystem stability and functioning.
Ting Xie, Puchao Jia, Yuwei Lin, Xinrong Li   +3 more
wiley   +1 more source

Antibiotic Resistance, Biofilm Formation, and Molecular Epidemiology of Foodborne Staphylococcus aureus Isolated in Northwest Hubei Province, China

Food Science &Nutrition, Volume 13, Issue 8, August 2025.
This study reveals a high prevalence of foodborne S. aureus in northwest Hubei Province, with MRSA strains displaying significantly elevated antibiotic resistance and biofilm‐forming capacities compared to MSSA strains. The high carriage rates of enterotoxin genes across isolates underscore the potential of these strains to contribute to foodborne ...
Yitong Tang, Yanyan Li, Na Xiao, Lu Wang, Shichao Li, JiuMing Zou, Yanmin Yu, Jinhui Shao, Ming Jiang   +8 more
wiley   +1 more source

An SDRE Based Estimator Approach for HIV Feedback Control [PDF]

, 2004
We present and use techniques and ideas from control theory to design and synthesize nonlinear feedback control-based treatment regimes for HIV. We demonstrate through numerical simulations that by using a "target tracking" approach, suboptimal feedback-based treatment strategies can be designed to move the state of the system from an "unhealthy" state
H. T. Tran, J. A. Toivanen, Hee-Dae Kwon, H. T. Banks   +3 more
openaire   +1 more source

Disarming the Pathogenicity of Methicillin‐Resistant Staphylococcus aureus via Osmundacetone‐Mediated Inhibition of Sortase A

Microbial Biotechnology, Volume 18, Issue 5, May 2025.
OSC inhibits the activity of the surface protein SrtA in S. aureus. SrtA recognises and cleaves the threonine (T) and glycine (G) residues of the LPXTG motif, covalently anchoring surface proteins to the cell wall, which promotes the adhesion and invasion of host cells.
Rong Wang, Chunhui Zhao, Dongbin Guo, Yueying Wang, Luanbiao Sun, Xinyao Liu, Yun Sun, Da Liu, Jiyu Guan, Li Wang, Bingmei Wang   +10 more
wiley   +1 more source

Uncovering a new family of conserved virulence factors that promote the production of host‐damaging outer membrane vesicles in Gram‐negative bacteria

Journal of Extracellular Vesicles, Volume 14, Issue 1, January 2025.
Abstract CprA is a short‐chain dehydrogenase/reductase (SDR) that contributes to resistance against colistin and antimicrobial peptides. The cprA gene is conserved across Pseudomonas aeruginosa clades and its expression is directly regulated by the two‐component system PmrAB.
Audrey Goman, Bérengère Ize, Katy Jeannot, Camille Pin, Delphine Payros, Cécile Goursat, Léa Ravon‐Katossky, Kazunori Murase, Camille V. Chagneau, Hélène Revillet, Frédéric Taieb, Sophie Bleves, Laure David, Etienne Meunier, Priscilla Branchu, Eric Oswald   +15 more
wiley   +1 more source

Symbolic Regulator Sets for a Weakly Nonlinear Discrete Control System with a Small Step

Mathematics, 2022
For a class of discrete weakly nonlinear state-dependent coefficient (SDC) control systems, a suboptimal synthesis is constructed over a finite interval with a large number of steps.
Yulia Danik, Mikhail Dmitriev
doaj   +1 more source

An Approach to Evaluate the Region of Attraction of Satellites Controlled by SDRE

WSEAS TRANSACTIONS ON SYSTEMS, 2022
The control of a satellite can be designed with success by linear control theory if the satellite has slow angular motions. However, for fast maneuvers, the linearized models are not able to represent the effects of the nonlinear terms. One candidate technique for the design of the satellite’s control under fast maneuvers is the State- Dependent ...
Alessandro Gerlinger Romero, Luiz Carlos Gadelha De Souza   +1 more
openaire   +1 more source

SDRE Based Guidance and Flight Control of Aircraft Formations

, 2015
In this paper, a nonlinear guidance algorithm to control unmanned aircraft formationsis presented. This algorithm is based on State Dependent Riccati Equation (SDRE) ap-proach.
Tekinalp, Ozan, Sarper, Kubasar
core   +1 more source

Observer-Based Suboptimal Controller Design for Permanent Magnet Synchronous Motors: State-Dependent Riccati Equation Controller and Impulsive Observer Approaches

Computers
Permanent Magnet Synchronous Motors (PMSMs) with high energy efficiency, reliable performance, and a relatively simple structure are widely utilised in various applications.
Nasrin Kalamian, Masoud Soltani, Fariba Bouzari Liavoli, Mona Faraji Niri   +3 more
doaj   +1 more source

Maximum Dynamic Load Determination via a Novel Robust State‐Dependent Differential Riccati Equation

IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
ABSTRACT This paper presents a novel application of the differential form of the state‐dependent Riccati equation technique (SDRE) i.e., the state‐dependent differential Riccati equation (SDDRE) as an indirect solution to the robust tracking control (RTC) problem for determining maximum dynamic load.
Neda Nasiri, Ahmad Fakharian, Mohammad Bagher Menhaj   +2 more
wiley   +1 more source