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The interest in the extracellular vesicles (EVs) is rapidly growing as they became reliable biomarkers for many diseases. For this reason, fast and accurate techniques of EVs size characterization are the matter of utmost importance. One…

生物物理 · 物理学 2018-03-26 M. Majka , M. Durak-Kozica , A. Kamińska , A. Opalińska , M. Szczęch , E. Stępień

Clinical SPECT-MPI images of 345 patients acquired from a dedicated cardiac SPECT in list-mode format were retrospectively employed to predict normal-dose images from low-dose data at the half, quarter, and one-eighth-dose levels. A…

Generating diverse, all-atom conformational ensembles of dynamic proteins such as G-protein-coupled receptors (GPCRs) is critical for understanding their function, yet most generative models simplify atomic detail or ignore conformational…

生物大分子 · 定量生物学 2025-08-19 Aditya Sengar , Ali Hariri , Daniel Probst , Patrick Barth , Pierre Vandergheynst

Zinc sulphide (ZnS) is a non-toxic, wide-bandgap II-VI semiconductor with well-established optoelectronic properties. This work presents a systematic, concentration-dependent comparison of PEG and PVP across two scalable aqueous routes,…

材料科学 · 物理学 2026-03-02 Rao Uzair Ahmad , Nasir Javed , Falak Sher

A procedure is presented to estimate the diffusion coefficient of a uniform patch of argon gas in a uniform background of helium gas. Molecular Dynamics (MD) simulations of the two gases interacting through the Lennard-Jones potential are…

数值分析 · 数学 2026-05-12 Isaac Viviano

We present a comprehensive investigation of polymer diffusion in the semidilute regime by fluorescence correlation spectroscopy (FCS) and dynamic light scattering (DLS). Using single-labeled polystyrene chains, FCS leads to the…

The collective motion of membrane lipids over hundred of nanometers and nanoseconds is essential for the formation of submicron complexes of lipids and proteins in the cell membrane. These dynamics are difficult to access experimentally and…

生物物理 · 物理学 2018-08-01 Sergio Panzuela , Rafael Delgado-Buscalioni

This paper presents DiffFuSR, a modular pipeline for super-resolving all 12 spectral bands of Sentinel-2 Level-2A imagery to a unified ground sampling distance (GSD) of 2.5 meters. The pipeline comprises two stages: (i) a diffusion-based…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Muhammad Sarmad , Arnt-Børre Salberg , Michael Kampffmeyer

A new method for investigating the particle size distribution (PSD) is suggested using the nuclear forward scattering (NFS) of synchrotron radiation. The distribution of Weibull-Gnedenko is used to illustrate the relationship between the…

材料科学 · 物理学 2010-04-23 A. I. Rykov

We evaluate a new approach for achieving diffusion MRI data with high spatial resolution, large volume coverage, and fast acquisition speed. A recent method called gSlider-SMS enables whole-brain sub-millimeter diffusion MRI with high…

图像与视频处理 · 电气工程与系统科学 2019-08-19 Justin P. Haldar , Qiuyun Fan , Kawin Setsompop

Saddle point search schemes are widely used to identify the transition state of different processes, like chemical reactions, surface and bulk diffusion, surface adsorption, and many more. In solid-state materials with relatively large…

材料科学 · 物理学 2024-02-22 Seyyedfaridoddin Fattahpour , Sara Kadkhodaei

Low-dose Positron Emission Tomography (PET) reduces radiation exposure but suffers from severe noise and quantitative degradation. Diffusion-based denoising models achieve strong final reconstructions, yet their reverse trajectories are…

Polydimethylsiloxane (PDMS) is a glassy polymer widely used in biomedical engineering, namely in microfluidics applications. However, PDMS is known to interact with hydrophobic chemicals. This interaction is exacerbated at the scale of…

软凝聚态物质 · 物理学 2025-06-18 Nathaniel G. Hermann , Dmitry A. Markov , M. Shane Hutson

We use multi-wavelength (0.12 - 500 micron) photometry from Herschel-ATLAS, WISE, UKIDSS, SDSS and GALEX, to study 23 nearby spheroidal galaxies with prominent dust lanes (DLSGs). DLSGs are considered to be remnants of recent minor mergers,…

宇宙学与河外天体物理 · 物理学 2015-06-16 S. Kaviraj , K. Rowlands , M. Alpaslan , L. Dunne , Y. -S. Ting , M. Bureau , S. Shabala , C. J. Lintott , D. J. B. Smith , the H-ATLAS collaboration

The thermal mean square displacement (MSD) of hydrogen in proteins and its associated hydration water is measured by neutron scattering experiments and used an indicator of protein function. The observed MSD as currently determined depends…

生物物理 · 物理学 2015-06-04 Derya Vural , Henry R. Glyde

We introduce a technique for extracting microstructural geometry from NMR lineshape analysis in porous materials at angstrom-scale resolution with the use of weak magnetic field gradients. Diverging from the generally held view of FID…

材料科学 · 物理学 2024-10-15 Mohamad Niknam , Louis-S. Bouchard

An efficient method is reported for rapid identification of bacterial or mycobacterial infection in a suspected clinical/biological sample. The method is based on the fact that the ring methylene protons of cyclic fatty acids (constituting…

生物物理 · 物理学 2014-12-30 Anupam Guleria , Nitin K Bajpai , Atul Rawat , C L Khetrapal , Narayan Prasad , Dinesh Kumar

Objective: Positron Emission Tomography (PET) has been a commonly used imaging modality in broad clinical applications. One of the most important tradeoffs in PET imaging is between image quality and radiation dose: high image quality comes…

图像与视频处理 · 电气工程与系统科学 2024-04-18 Shaoyan Pan , Elham Abouei , Junbo Peng , Joshua Qian , Jacob F Wynne , Tonghe Wang , Chih-Wei Chang , Justin Roper , Jonathon A Nye , Hui Mao , Xiaofeng Yang

Plastic scintillation detectors represent an efficient, cost-effective, customizable solution for assessment of gamma radiation fields in the context of nuclear security, environmental radiation survey, radiological and nuclear incidents…

仪器与探测器 · 物理学 2021-12-08 Paolo Tancioni , Ulisse Gendotti

The thermodynamic behavior of mixed systems containing the anionic surfactant sodium dodecyl sulfate (SDS) and the nonionic surfactant polyethylene glycol dodecyl ether (Brij L4) in aqueous solutions was investigated. Electrical…