Results 51 to 60 of about 339,663 (292)
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
The Journal of EngineeringPower amplifier design is an important topic in communication systems. Improving the efficiency of a power amplifier has long been a key interest to RF designers.
Mohammad Soruri, Patrizia Livreri
doaj +1 more source
Design of a 0.1–16GHz Reconfigurable Ultra-Wideband MMIC Power Amplifier
IEEE AccessThis paper proposes a reconfigurable ultra-wideband power amplifier based on reconfigurable technology. The power amplifier consists of a gain module and reconfigurable bias circuits.
Heyang Sun +3 more
doaj +1 more source
5 Watt GaN HEMT Power Amplifier for LTE [PDF]
, 2014 This work presents the design and implementation of a stand-alone linear power amplifier at 2.4 GHz with high output power. A GaN HEMT transistor is selected for the design and implementation of the power amplifier.
Collado, A. +3 more
core
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Dianzi Jishu Yingyong, 2018 The circuit techniques that suppress pop-click noise and reduce saturation distortion are presented for class D amplifier in mobile application. Pop-click noise level is effectively suppressed by detecting power voltage, controlling preamplifier and ...
Zheng Hao +4 more
doaj +1 more source
Design of GaN-based input harmonic control RF power amplifier
Dianzi Jishu Yingyong, 2021 The influence of input harmonic control theory on the performance of power amplifier efficiency is qualitatively analyzed. At the same time, the 0.25 ?滋m GaN HEMT device from Nanjing Institute of Electronic Devices was selected, and the load pull test ...
Shao Yuwei, Tao Hongqi
doaj +1 more source
Molecular Oncology, EarlyView.Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee +8 more
wiley +1 more source
A filter synthesis technique applied to the design of multistage broad-band microwave amplifiers [PDF]
, 2002 A method for designing multistage broad-band amplifiers based upon well-known filter synthesis techniques is presented. Common all-pole low-pass approximations are used to synthesize prototype amplifier circuits that may be scaled in frequency and ...
Hunter, I. +3 more
core +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source