Results 101 to 110 of about 205,172 (310)

Relating the spectrum of cardiac signals to the spatiotemporal dynamics of cardiac sources [PDF]

open access: yesarXiv, 2013
An increasing number of studies use the spectrum of cardiac signals for analyzing the spatiotemporal dynamics of complex cardiac arrhythmias. However, the relationship between the spectrum of cardiac signals and the spatiotemporal dynamics of the underlying cardiac sources remains to date unclear.
arxiv  

The architecture of co-culture spheroids regulates tumor invasion within a 3D extracellular matrix [PDF]

open access: yesarXiv, 2020
Tumor invasion, the process by which tumor cells break away from their primary tumor and gain access to vascular systems, is an important step in cancer metastasis. Most current 3D tumor invasion assays consisted of single tumor cells embedded within an extracellular matrix (ECM). These assays taught us much of what we know today on how key biophysical
arxiv  

Optimizing Angiopep‐2 Density on Polymeric Nanoparticles for Enhanced Blood–Brain Barrier Penetration and Glioblastoma Targeting: Insights From In Vitro and In Vivo Experiments

open access: yesAdvanced Functional Materials, EarlyView.
The Angiopep‐2 peptide density on polymeric nanoparticles significantly impacts blood–brain barrier (BBB) penetration. This study explores this nuanced relationship using various in vitro models and in vivo assays, revealing that dynamic models better predict BBB penetration.
Weisen Zhang   +9 more
wiley   +1 more source

Deep CT to MR Synthesis using Paired and Unpaired Data [PDF]

open access: yesarXiv, 2018
MR imaging will play a very important role in radiotherapy treatment planning for segmentation of tumor volumes and organs. However, the use of MR-based radiotherapy is limited because of the high cost and the increased use of metal implants such as cardiac pacemakers and artificial joints in aging society.
arxiv  

Comparison of Magnetic Resonance Imaging and Serum Biomarkers for Detection of Human Pluripotent Stem Cell-Derived Teratomas. [PDF]

open access: yes, 2016
The use of cells derived from pluripotent stem cells (PSCs) for regenerative therapies confers a considerable risk for neoplastic growth and teratoma formation.
Ameen, Mohamed   +13 more
core   +3 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

A giant right atrial myxoma with pulmonary arterial hypertension

open access: yesThe Pan African Medical Journal, 2015
Here we report a case of a right atrial mass that morphology mimicking myxoma, in a young patient with no past medical history. The mass was pathologically confirmed to be symptomatic and surgical removal was successfully done.
Zairi Ihsen   +7 more
doaj   +1 more source

Mechanically and Chemically Defined PEG Hydrogels Improve Reproducibility in Human Cardioid Development

open access: yesAdvanced Healthcare Materials, EarlyView.
Synthetic matrix metalloproteinase (MMP)‐degradable polyethylene glycol (PEG)‐based hydrogels are developed to investigate the influence of mechanical and biochemical cues on cardioid development. Matrix stiffness and cell adhesion motifs significantly regulate cardioid formation, chamber morphogenesis, contractile function, and cardioid transcriptome.
Yuanhui Song   +6 more
wiley   +1 more source

Focal Spot, Spring 1978 [PDF]

open access: yes, 1978
https://digitalcommons.wustl.edu/focal_spot_archives/1020/thumbnail ...

core   +1 more source

Motor‐Free Soft Robots for Cancer Detection, Surgery, and In Situ Bioprinting

open access: yesAdvanced Healthcare Materials, EarlyView.
Novel motor‐free soft robots for cancer detection, surgery, and in situ bioprinting–are presented. This master‐slave system is constructed from soft fibrous syringe architectures, removing the need for electrical motors and complex control mechanisms, while reducing the physical tremors.
Chi Cong Nguyen   +17 more
wiley   +1 more source

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