Results 141 to 150 of about 29,508,989 (334)

NMR imaging as a tool for studying the diffusion and co-diffusion of gases in zeolite catalysts [PDF]

, 2005
1H NMR imaging is a powerful technique for studying the diffusion of pure hydrocarbons (for example benzene and n-hexane) during their adsorption in or desorption from a fixed bed of zeolite crystallites.
Fraissard, Jacques
core   +1 more source

Hybrid intravoxel incoherent motion–diffusion kurtosis imaging in brain MRI: A scoping review of applications, insights, and emerging directions

Journal of Magnetic Resonance Open
Intravoxel incoherent motion (IVIM) and diffusion kurtosis imaging (DKI) are advanced diffusion MRI techniques that respectively characterize microvascular perfusion and non-Gaussian diffusion.
Abhijith S, Saikiran Pendem, Rajagopal Kadavigere, Priyanka, Priya P․ S․, Dharmesh Singh   +5 more
doaj   +1 more source

Three-dimensional tumor growth in time-varying chemical fields: a modeling framework and theoretical study

BMC Bioinformatics, 2019
Background Contemporary biological observations have revealed a large variety of mechanisms acting during the expansion of a tumor. However, there are still many qualitative and quantitative aspects of the phenomenon that remain largely unknown.
Markos Antonopoulos, Dimitra Dionysiou, Georgios Stamatakos, Nikolaos Uzunoglu   +3 more
doaj   +1 more source

Spatial biology in cancer epigenetics

Molecular Oncology, EarlyView.
Spatial epigenomics combines molecular profiling with tissue architecture to reveal how gene regulation is organized within intact tissues. In cancer, these technologies uncover the mechanisms driving tumor heterogeneity and microenvironmental interactions, opening new opportunities for biomarker discovery and precision medicine.
Eva Crespo‐García, Manel Esteller
wiley   +1 more source

Dreaming of electrical waves: Generative modeling of cardiac excitation waves using diffusion models

APL Machine Learning
Electrical waves in the heart form rotating spiral or scroll waves during life-threatening arrhythmias, such as atrial or ventricular fibrillation. The wave dynamics are typically modeled using coupled partial differential equations, which describe ...
Tanish Baranwal, Jan Lebert, Jan Christoph   +2 more
doaj   +1 more source

Paclitaxel induces NM2‐dependent cellular contraction through GEF‐H1 dissociation from microtubules and RhoA/ROCK activation in cancer cells

Molecular Oncology, EarlyView.
Taxanes are widely used chemotherapeutics whose effects on cellular mechanics remain poorly understood. We show that paclitaxel induces rapid cellular contraction by promoting GEF‐H1 dissociation from microtubules and non‐muscle myosin II activation through RhoA/ROCK.
Gloria Asensio‐Juárez, Rafael Pérez‐Díaz, Hugo Ramos‐Solano, Marina Garrido‐Casado, Vanessa C. Talayero, Miguel Vicente‐Manzanares   +5 more
wiley   +1 more source

Effects of Heat Treatment, Zn3BO6 Addition, and their Combination on the Mechanical Properties and Water Absorption Behavior of Beech Wood/Polypropylene Composites

BioResources
Individual and combined effects of thermal treatment and zinc borate (ZB) addition were studied relative to the mechanical properties and water resistance of oriental beech (Fagus orientalis Lipsky) wood-plastic composites (WPCs).
Seyyed Khalil HosseiniHashemi, Farhad Arwinfar, Nadir Ayrilmis   +2 more
doaj  

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

FEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz, Bart Geverts, Johan A. Slotman, Andrea Sacchetti, Stefan Prekovic, Martin E. van Royen, Adriaan B. Houtsmuller   +6 more
wiley   +1 more source

Spiking Diffusion Models

IEEE Transactions on Artificial Intelligence
Recent years have witnessed Spiking Neural Networks (SNNs) gaining attention for their ultra-low energy consumption and high biological plausibility compared with traditional Artificial Neural Networks (ANNs). Despite their distinguished properties, the application of SNNs in the computationally intensive field of image generation is still under ...
Jiahang Cao, Hanzhong Guo, Ziqing Wang, Deming Zhou, Hao Cheng 0015, Qiang Zhang 0029, Renjing Xu   +6 more
openaire   +3 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source