Results 61 to 70 of about 953 (152)

Insights on Personality, Social Support, and Caregiver Burden in Dementia

Alzheimer's &Dementia, Volume 21, Issue S4, December 2025.
Abstract Background Previous studies have shown that certain personality traits in family caregivers of persons with dementia are at higher risk for stress, burden and reduced social support. However, the relationship between personality traits, social support, and caregiver burden is not fully understood.
Christina S Zonker, Aimee R Mooney, Heather Franklin, Allison Lindauer   +3 more
wiley   +1 more source

Symmetry and Duality in ZCS and ZVS Quasi-Resonant Buck, Boost, and Buck–Boost DC–DC Converters

Energies
Quasi-resonant (QR) DC–DC converters with PWM control achieve soft switching by shaping the commutation transient through a local resonant process. This paper proposes a symmetry-based unified perspective on classical QR converters by interpreting zero ...
Nikolay Hinov
doaj   +1 more source

Mapping Distressing Behaviors in Dementia to Non‐pharmacological Treatments

Alzheimer's &Dementia, Volume 21, Issue S4, December 2025.
Abstract Background Non‐pharmacological treatments (NPTs) for individuals with dementia and their caregivers have been shown to increase activity participation, maximize independence and reduce caregiver burden. The World Health Organization (WHO) has directed rehabilitation as a core component of dementia care.
Aimee R Mooney, Christina S Zonker, Heather Franklin, Emily Tupper, Allison Lindauer   +4 more
wiley   +1 more source

Search for Zc (3900))± → ωπ±

, 2015
The decay Zc(3900)±→ωπ± is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies s√=4.23 and 4.26 GeV. No significant signal for the Zc(3900)± is found, and upper limits at the 90% confidence level on the Born cross section for the process e+e−→Zc(3900)±π∓→ωπ+π− are determined
Ablikim, M., Ai, X. C., Chelkov, G. A., Achasov, M. N.   +3 more
openaire   +3 more sources

Layered Perovskite Materials for Photocatalytic Overall Water Splitting: Recent Advances, Enhanced Strategies, and Future Challenges

EcoEnergy, Volume 3, Issue 4, December 2025.
We introduce the basic principle of photocatalytic overall water splitting (OWS) before then discussing the advantages and challenges of employing layered perovskites as an OWS photocatalyst. Their relevant properties and modification strategies for enhancing photocatalytic OWS efficiency are highlighted.
Na Li, Chao Cheng, Yilin Wang, Alex W. Robertson, Zhenyu Sun   +4 more
wiley   +1 more source

Search for ϒ(1S,2S)→Zc+Zc(′)− and e+e−→Zc+Zc(′)− at s=10.52 , 10.58, and 10.867 GeV

Search for ϒ(1S,2S)→Zc+Zc(′)− and e+e−→Zc+Zc(′)− at s=10.52 , 10.58, and 10.867 GeV
The first search for double charged charmoniumlike state production in Ï?(1S) and Ï?(2S) decays and in e+e- annihilation at s=10.52, 10.58, and 10.867 GeV is conducted using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider.
openaire   +1 more source

Interleaved Active-Clamping Converter With ZVS/ZCS Features

IEEE Transactions on Power Electronics, 2010
In this paper, an interleaved soft-switching dc-to-dc converter configuration is proposed. It consists of two parts: the primary side is a constant-frequency asymmetrical converter with active-clamp feature and the secondary side is a series-resonant tank circuit.
Hsia, Tsun-Hsiao, Tsai, Hsien-Yi, Chen, Dan, Lee, Martin, Huang, Chun-Shih   +4 more
openaire   +2 more sources

Axialvector tetraquark candidates for Zc(3900), Zc(4020), Zc(4430), and Zc(4600) Supported by National Natural Science Foundation (11775079)

Chinese Physics, 2020
We construct the axialvector and tensor current operators to systematically investigate the ground and first radially excited tetraquark states with quantum numbers using the QCD sum rules. We observe one axialvector tetraquark candidate for and , two axialvector tetraquark candidates for the , and three axialvector tetraquark candidates for .
openaire  

Conversor Boost Quadrático SR-ZCS-ZVS-QRC PWM

Eletrônica de Potência, 2012
Este artigo apresenta um conversor Boost Quadrático associado a uma célula de auxílio à comutação auto-ressonante (SR) com comutação com tensão nula na entrada de condução (ZVS).
Leandro Sousa Vilefort, Fábio Vincenzi Romualdo da Silva, Ernane Antônio Alves Coelho, Luiz Carlos de Freitas, João Batista Vieira Jr   +4 more
doaj   +1 more source

Retificadores de alto fator de potência com comutação suave e baixas perdas de condução

Eletrônica de Potência, 1996
Este artigo apresenta um estudo sobre retificadores monofásicos de alto fator de potência com comutação suave e baixas perdas de condução. As baixas perdas de condução são obtidas através da utilização de um conversor único, ao invés da configuração ...
Alexandre Ferrari de Souza, Ivo Barbi
doaj   +1 more source