Results 81 to 90 of about 616,798 (355)

Transducer Materials Mediated Deep Brain Stimulation in Neurological Disorders

Advanced Functional Materials, EarlyView.
This review discusses advanced transducer materials for improving deep brain stimulation (DBS) in neurological disorders. These materials respond to light, ultrasound, or magnetic fields, enabling precise, less invasive neuromodulation. Their stimulus‐responsive properties enhance neural control and adaptive therapy, paving the way for next‐generation ...
Di Zhao, Zhengyang Cao, Guangjun Zhong, Limin Shi, Junxia Xie, Jianhua Hao   +5 more
wiley   +1 more source

Feasibility of quantification of the distribution of blood flow in the normal human fetal circulation using CMR: a cross-sectional study

Journal of Cardiovascular Magnetic Resonance, 2012
Background We present the first phase contrast (PC) cardiovascular magnetic resonance (CMR) measurements of the distribution of blood flow in twelve late gestation human fetuses.
Seed Mike, F P van Amerom Joshua, Yoo Shi-Joon, Al Nafisi Bahiyah, Grosse-Wortmann Lars, Jaeggi Edgar, Jansz Michael S, Macgowan Christopher K   +7 more
doaj   +1 more source

Effects Of Aging On Endothelium-Dependent Vasodilation In Cerebral Arteries [PDF]

, 2011
Regional cerebral blood flow (CBF) decreases with aging. This reduction may be due to a diminished endothelium-dependent vasodilation in large cerebral arteries with aging in the absence of disease.
Boyd, Elisa, de Jong, Amanda, Evans, Landon, Spier, Scott A.   +3 more
core   +1 more source

Transplantation of progenitor cells and regeneration enhancement in acute myocardial infarction - (TOPCARE-AMI) [PDF]

, 2002
Background - Experimental studies suggest that transplantation of blood-derived or bone marrow–derived progenitor cells beneficially affects postinfarction remodeling.
Aicher, A, Assmus, B, Britten, M, Dimmeler, S, Döbert, N, Grünwald, F, Hoelzer, D, Lehmann, R, Martin, H, Schächinger, V, Teupe, C, Urbich, C, Zeiher, AM   +12 more
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

Advanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva, Giulio Fatti, Emanuel Carlos, Guilherme Ferreira, Sumita Goswami, Suman Nandy, Luiz H. C. Mattoso, Elvira Fortunato, Caio G. Otoni, Rodrigo Martins   +9 more
wiley   +1 more source

Microphysiological Systems for Comorbidity Studies: Chronic Kidney Disease and Osteoarthritis

Advanced Healthcare Materials, EarlyView.
This review highlights the potential of organ‐on‐a‐chip systems for studying comorbidities, using chronic kidney disease (CKD) and osteoarthritis (OA) as examples. It summarizes recent advances in kidney‐on‐a‐chip and joint‐on‐a‐chip models and discusses their current and potential application in investigating CKD, OA, and CKD‐OA comorbidity, aiming to
Mingying Han, Weiping Lin, Yuanxiong Cao, Patricia Murray, Bettina Wilm, Stephen J McWilliam, Jude Curran, Ruoxiao Xie   +7 more
wiley   +1 more source

Dynamic alteration of regional cerebral blood flow during carotid compression and proof of reversibility

Acta Radiologica Open, 2012
Background It is difficult to non-invasively visualize changes in regional cerebral blood flow caused by manual compression of the carotid artery. Purpose To visualize dynamic changes in regional cerebral blood flow during and after manual compression of
Kouichi Asahi, M Hori, N Hamasaki, S Sato, H Nakanishi, R Kuwatsuru, K Sasai, S Aoki   +7 more
doaj   +1 more source

The direct effect of leg position on calf blood flow measured by venous occlusion plethysmography☆

Artery Research, 2007
Background: Venous occlusion plethysmography is commonly used to assess changes in calf blood flow (CBF). Although the leg is often positioned above the level of the heart to aid venous emptying during periods of cuff deflation, its direct effect on ...
Julie H. Corrigan, Joanna Burns, Robert J. Huggett, Alan F. Mackintosh, David A.S.G. Mary   +4 more
doaj   +1 more source

In silico modeling of oxygen-enhanced MRI of specific ventilation. [PDF]

, 2018
Specific ventilation imaging (SVI) proposes that using oxygen-enhanced 1H MRI to capture signal change as subjects alternatively breathe room air and 100% O2 provides an estimate of specific ventilation distribution in the lung.
Burrowes, Kelly S, Clark, Alys R, Geier, Eric T, Kang, Wendy, Prisk, G Kim, Sá, Rui C, Tawhai, Merryn H   +6 more
core   +1 more source

A Patient‐Specific 3D Printed Carotid Artery Model Integrating Vascular Structure, Flow, and Endothelium Responses

Advanced Healthcare Materials, EarlyView.
This study introduces the first miniaturized, patient‐specific carotid artery model created via 3D printing using GelMA with embedded vascular cells. Combining CFD, PIV, and flow perfusion, the model replicates anatomically dependent hemodynamics and cellular responses.
Jorge A. Catano, Louis Jun Ye Ong, Mingyang Yuan, Yunkun Qu, Jessica Benitez, Prasad KDV Yarlagadda, Yi‐Chin Toh, Zhiyong Li   +7 more
wiley   +1 more source