Results 121 to 130 of about 7,221,304 (242)

A Dual‐Modal Wearable PPG Smartwatch with AI‐Enhanced Correction for High‐Accuracy and Continuous AF Burden Assessment

Advanced Science, EarlyView.
ABSTRACT Atrial fibrillation (AF) increases the risk of stroke and heart failure, yet accurate quantification of AF burden in daily life remains difficult. Although smartwatch photoplethysmography (PPG) supports continuous monitoring, complex rhythms and signal noise can impair burden estimation.
Song Zuo, Jinglei Wang, Xin Wang, Han Feng, Yize Zhao, Fadong Li, Shaobin Wei, Le Zhou, Zixu Zhao, Songjie Chen, Xiangyi Kong, Jue Wang, Liu He, Shijun Xia, Xin Li, Junmeng Zhang, Xiaoxia Liu, Xueyuan Guo, Ning Zhou, Songnan Li, Chenxi Jiang, Ribo Tang, Caihua Sang, Deyong Long, Xin Du, Jianzeng Dong, Wenwu Zhu, Changsheng Ma   +27 more
wiley   +1 more source

Data from: Diastolic pressure ratio: new approach and validation vs. the instantaneous wave-free ratio

, 2019
Aims The instantaneous wave-free ratio (iFR) and whole-cycle Pd/Pa investigate coronary physiology during non-hyperaemic conditions. To test for unique physiologic properties of the wave-free period when making resting coronary pressure ...
Nils P Johnson (3314277), Johnson, Nils P   +1 more
core   +1 more source

A Molten Salt Extraction Method for Palladium Recovery via the CaPd2 Intermetallic Compound

Advanced Science, EarlyView.
A designed Ca → CaPd2 → Pd pathway enables acid–free palladium recovery in molten salt. Calcium alloying forms anionic CaPd2, which is selectively oxidized by iodine from CaI2 to yield high–purity metallic Pd. ABSTRACT To address palladium scarcity and the low efficiency of conventional recovery processes, this work presents a molten–salt extraction ...
Jiapeng Zhang, Dengjie Yan, Muwen Chen, Baoqiang Xu, Bin Yang, Bingyi Song, Lingxin Kong   +6 more
wiley   +1 more source

Generation and Enhancement of Persistent Nanoscale Magnetization in All‐Dielectric Metasurfaces by Optically Injected and Localized Free Carriers

Advanced Science, EarlyView.
Infrared metasurface‐guided waves (IR‐MGW) scattered by a time interface (TI) induced by rapid, localized free‐carrier generation can be efficiently rectified to generate strong, persistent magnetic fields. We develop a rigorous, theoretical model to study a time‐varying, dispersive medium and uncover the redistribution of the initial energy of the IR ...
Shivaksh Rawat, Samyobrata Mukherjee, Gennady Shvets   +2 more
wiley   +1 more source

Instantaneous Wave-Free Ratio-Guided Interventions in Side Branches Improve Results in Bifurcation Lesions Compared to Conventional Techniques

Journal of Interventional Cardiology
Conclusions: iFR-guided side-branch intervention involving drug-eluting balloon inflation in bifurcation lesions was significantly better when compared to conventional interventions in terms of clinical and functional outcomes in patients with coronary ...
null Zia-ul-Sabah, Adel Masswary, Mohammed Alahmari, Abdullah Asiri, Javed Iqbal Wani, Humayoun Durrani, Shahid Aziz, Hafed Ahmad Alaskary, Ali Alqarni, Ayyub Ali Patel   +9 more
doaj   +1 more source

Long-term Safety of Revascularization Deferral Based on Instantaneous Wave-Free Ratio or Fractional Flow Reserve. [PDF]

J Soc Cardiovasc Angiogr Interv, 2023
Yndigegn T, Koul S, Rylance R, Berntorp K, Mohammad MA, Omerovic E, Sarno G, Linder R, Fröbert O, Jensen J, Schiopu A, Erlinge D, Götberg M.   +12 more
europepmc   +1 more source

Regulating Droplet Dynamics via Wormlike Micelle Networks: From Splash Suppression to Precise Confined Spreading

Advanced Science, EarlyView.
As displayed in Graphical Abstract image.tif, a molecular‐design strategy precisely tailors high‐speed droplet dynamics through programmed surfactant co‐assembly. The structural transition into an entangled wormlike micelle network completely suppresses stochastic splashing on fibrous substrates.
Shuling Liu, Beibei Xie, Xingyue Lou, Yu Deng, Lei Wang, Jiawei Li, Dongming Qi   +6 more
wiley   +1 more source

Instantaneous Wave-Free Ratio

Journal of the American College of Cardiology, 2013
Sen, Sayan, Nijjer, Sukhjinder, Petraco, Ricardo, Malik, Iqbal S., Francis, Darrel P., Davies, Justin   +5 more
openaire   +1 more source

Instantaneous wave-free ratio to guide coronary revascularisation:Physiological framework, validation and differences from fractional flow reserve

EuroIntervention, 2017
Determining the optimal treatment strategy for revascularisation of coronary artery stenosis involves the use of fractional flow reserve (FFR). To improve the low clinical uptake of physiological lesion assessment to guide revascularisation, the instantaneous wave-free period (iFR) was proposed as a simpler alternative to FFR that does not require ...
De Waard, Guus A., Di Mario, Carlo, Lerman, Amir, Serruys, Patrick W., Van Royen, Niels   +4 more
openaire   +2 more sources

Volatile ZrO2 Antiferroelectric Tunnel Junctions for Rapid, Energy‐Efficient Physical Reservoir Computing

Advanced Science, EarlyView.
An antiferroelectric tunnel junction serves as a reservoir computing node, where field‐induced phase transitions and spontaneous ZrO2 relaxation deliver nonlinear fading memory. An In‐Ga‐Zn oxide interlayer enlarges the memory margin and multibit state richness.
Taegyu Kwon, Moonseek Jeong, Su In Hwang, Geun Hyeong Park, Joonyong Kim, Hyojun Choi, Hyeong Seok Choi, Da Hyun Kim, Dong Hee Han, Ju Yong Park, Seungho Baek, Jung Ho Yoon, Dong Hyun Lee, Min Hyuk Park   +13 more
wiley   +1 more source