Results 61 to 70 of about 1,797 (181)
MicrobiologyOpen, Volume 14, Issue 6, December 2025.CodY is a global regulator whose phosphorylation at serine 215 by PrkC/YbdM alters its DNA binding, thereby modulating gene expression and impacting motility, biofilm formation, cytotoxicity, and pathogenicity in Bacillus cereus, suggesting a conserved regulatory mechanism in Firmicutes ABSTRACT CodY acts as a key regulatory protein involved in ...
Mounia Kortebi +7 more
wiley +1 more source
The FEBS Journal, Volume 292, Issue 21, Page 5659-5675, November 2025.Human tissue kallikrein 14 (KLK14), a skin protease, may mediate paracrine signaling in wound healing. KLK14 released by epithelial cells activates fibroblasts via PAR‐1 activation, inducing IL‐6, IL‐8, and CXCL1 expression. These cytokines in turn promote keratinocyte proliferation and migration, resulting in wound closure.
Laura Sasiadek +16 more
wiley +1 more source
Research on PAPR reduction algorithm based on CWGAN-SLM for multi-wavelet OFDM system
Tongxin xuebao, 2023 In order to meet the demand for low peak to average ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) technology in the future 6G satellite-ground integrated system, an algorithm combining selective mapping (SLM) algorithm and multi ...
Guang YANG +4 more
doaj +2 more sources
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 38, Issue 5, September/October 2025.ABSTRACT In this article, we provide a novel, expanded, and adapted pruning approach for the Simplified Volterra Series (SVS) model that makes it applicable to a wider range of Power Amplifiers (PAs). The proposed Modified SVS (MSVS) model is then applied in a Digital Predistortion (DPD) architecture to linearize a 25 W Gallium Nitride (GaN) RF PA.
Haithem Rezgui +3 more
wiley +1 more source
Journal of Advanced Nursing, Volume 81, Issue 9, Page 6011-6021, September 2025.ABSTRACT Aim The aim of this qualitative exploratory study aimed was to explore how nurses experienced and responded to the COVID‐19 pandemic crisis in clinical settings to develop a response model. Design Focus group interviews. Methods Thirteen focus group interviews (n = 50) with nurses and nurse leaders practicing in diverse clinical settings were ...
Dahae Rim +7 more
wiley +1 more source
Performance Analysis of MIMO Links With Non‐Isolated Active Antenna Arrays
Microwave and Optical Technology Letters, Volume 67, Issue 8, August 2025.ABSTRACT In this paper, we analyze the performance of non‐isolated active arrays in a multiple‐input multiple‐output (MIMO) system. When ferromagnetic‐type isolators are removed in the transmitter (Tx) chains, the antenna mutual coupling will dynamically change the load impedance seen by the power amplifiers (PAs) at their outputs, which subsequently ...
Jiayu Hou +3 more
wiley +1 more source
PAPR Reduction Solutions for 5G and Beyond.
, 2023 The latest fifth generation (5G) wireless technology provides improved communication quality compared to earlier generations. The 5G New Radio (NR), specified by the 3rd Generation Partnership Project (3GPP), addresses the modern requirements of the wireless networks and targets improved communication quality in terms of for example peak data rates ...
openaire +2 more sources
A new PAPR reduction in OFDM systems using PTS combined with APPR for TWTA nonlinear HPA [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2008 In this paper, we propose a new Peak-to-Average Power Ratio (PAPR) reduction technique using a partial transmit sequence (PTS) combined with adaptive peak power reduction (APPR) methods.
Chusit Pradabpet, Kobchai Dejhan
doaj
A New Approach to Iterative Clipping and Filtering PAPR Reduction Scheme for OFDM Systems
IEEE Access, 2018 While achieving reduced/good peak-to-average power (PAPR) in orthogonal frequency division multiplexing (OFDM) systems is attractive, this must not be performed at the expense of the transmitted signal with over-reduced signal power, as it leads to ...
Kelvin Anoh +3 more
doaj +1 more source
A Novel PAPR in OTFS Systems Through ISSA-PTS and ISPR Techniques
IEEE AccessIn modern communication systems, managing the Peak-to-Average Power Ratio (PAPR) remains a critical challenge, particularly in Orthogonal Time-Frequency Space (OTFS) systems.
Gerges Mansour Salama +3 more
doaj +1 more source