Results 91 to 100 of about 941,423 (318)

Decoding the dynamic extracellular matrix in cancer—3D models and bioscaffolds rewire the rules of tumor progression

FEBS Letters, EarlyView.
Cancer progression is regulated by the dynamic matrix code of the tumor microenvironment, which influences cellular behavior and disease development. Importantly, matrix remodeling in three‐dimensional cancer models more accurately reflects in vivo conditions compared to conventional two‐dimensional systems.
Sylvia Mangani, Konstantinos Spanopoulos, Zoi Piperigkou, Nikos K. Karamanos   +3 more
wiley   +1 more source

Half-wave cycloconverter-based photovoltaic microinverter topology with phase-shift power modulation

, 2013
A grid-connected microinverter with a reduced number of power conversion stages and fewer passive components is proposed. A high-frequency transformer and a series-resonant tank are used to interface the full-bridge inverter to the half-wave ...
Vilathgamuwa, D. Mahinda, Nayanasiri, D.R., Maskell, D.L.   +2 more
core   +1 more source

High-Efficiency Stacked Half-Bridge Sigma Topology for Wide Input Range and High Step-Down Application

IEEE Open Journal of Power Electronics
In wide input range and high step-down application, conventional Sigma converter suffers from the problem of small duty cycle and low efficiency of the internal Buck converter.
Zhoulong Wang, Li Zhang
doaj   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Shift work: An occupational health and safety hazard

, 2003
Shift work is a major feature of modern work practices. It involves individuals working at times considered unconventional for most workers, such as at night.
Buxton, Sandra
core  

Prediction of the optimal phase shift between control signals in dual-input power amplifiers

, 2020
This paper evaluates the effect of the phase shift between the two control signals in a dual-input load modulated balanced amplifier (LMBA). While the drain efficiency of the LMBA is not significantly affected by the phase shift between the control ...
Wantao Li, Gilabert Pinal, Pere Lluís, Guillena Berenguer, Estefanía, Li, Wantao, Pere L. Gilabert, Montoro López, Gabriel, Gabriel Montoro, Estefania Guillena   +7 more
core   +1 more source

Triple-Phase-Shift Control Strategy for Full-Bridge Three-Level (FBTL) DC/DC Converter [PDF]

, 2018
This paper proposes a triple-phase-shift (TPS) control strategy for the full-bridge three-level (FBTL) DC/DC converter to reduce the voltage stress and harmonics on the transformer. The proposed control strategy is composed of three phase-shift delays to
Wang, Yanbo, Chen, Zhe; id_orcid, Deng, Fujin; id_orcid, Liu, Dong; id_orcid   +3 more
core   +1 more source

New technique for digital phase-shift control

Electronics Letters, 1969
A scheme for digital phase-shift control of a locked oscillator is proposed. If the required operating frequency is f and the locking frequency is nf, a reversal in phase of the locking frequency will shift the phase of the locked oscillator by π/n, under suitable conditions.
openaire   +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

Phase-Shift Control for Enhancing Misalignment Tolerance in UCA-Based OAM-MIMO Systems

IEEE Access
This paper presents a novel approach for achieving high-capacity transmission utilizing sub-terahertz (THz) radio orbital angular momentum (OAM) multiplexing, specifically in scenarios where the radio link is susceptible to antenna misalignment. We focus
Norifumi Kamiya, Masahiro Kawai, Eisaku Sasaki   +2 more
doaj   +1 more source