diffusion models

SWoMo: Neuro-Symbolic World Model for Cataract Surgery Simulation

Anatomy-Guided Residual Motion Diffusion for Controllable 4D Cardiac MRI Synthesis

A Phenomenological Mathematical Model on I–V Curve of p-n Junctions in Semiconductor Diodes

A phenomenological mathematical (PM) model is proposed to describe the current–voltage (<inline-formula> <tex-math notation="LaTeX">$I$ </tex-math></inline-formula>–<inline-formula> <tex-math notation="LaTeX">$V$ </tex-math></inline-formula>) characteristics of silicon (Si) p-n junction diodes, based on a self-feedback...

NUQTAVIY NUQSONLAR KONSENTRATSIYASINI HISOBLASHDA REACTION–DIFFUSION TENGLAMALARIDAN FOYDALANISH

Ion implantatsiyalangan materiallarda hosil bo‘ladigan nuqtaviy nuqsonlar (vakansiya va interstitial atomlar) konsentratsiyasining fazoviy-vaqt taqsimotini hisoblash uchun reaction–diffusion tenglamalar tizimidan foydalanish masalasi ko‘rib chiqilgan. Diffuziya jarayoni bilan bir qatorda vakansiya-interstitial rekombin...

Diagnostic value of a multiparametric magnetic resonance imaging-based nomogram incorporating apparent diffusion coefficient in preoperative differentiation of phyllodes tumors from breast cancer: a retrospective study

Background: Preoperative differentiation between phyllodes tumors (PTs) and breast cancers (BCs) remains a clinical challenge due to their overlapping imaging characteristics. The aim of this study was to evaluate the diagnostic performance of multiparametric magnetic resonance imaging (MRI), incorporating morphologica...

From interoception to anxiety and social cognition: the mediating roles of intolerance of uncertainty and alexithymia

Daily life requires navigating uncertainty arising from external events and internal bodily sensations. Although uncertainty often elicits anxiety, individuals differ markedly in their sensitivity to it, a trait termed Intolerance of Uncertainty (IU). Across two studies, we examined how IU and alexithymia (difficulties...

Explainability in Multimodal Deep Transformation Models for Stroke Outcome Prediction

Higher-order stable compact ADI schemes for multi-term time-fractional diffusion-wave equation in two dimensions

This article focuses on developing the compact alternating direction implicit (ADI) numerical scheme based on H3N3-2 σ approximation for the two-dimensional multi-term time-fractional diffusion wave equation (TFDWE). The time-dependent multi-term Caputo derivative of order α r ∈ ( 1 , 2 ) in the equation is discretized...

Hysteresis Transformation and Memristor Design Framework for Two-Dimensional Materials for Neuromorphic Computing:Physics-Based Charge-Diffusion Modelling and Machine Learning

Abstract Hysteresis is the defining electrical signature of memristive dynamics and underpins the history-dependent conductance required for artificial synapses and neuromorphic computing. However, unlike conventional passive electronic components, memristive devices lack a universally accepted framework for quantitati...

Medial temporal default mode network selectively encodes autobiographical visual imagery

The human brain’s capacity to imagine visual scenes from memory is thought to rely on the medial temporal subsystem of the default mode network (MT-DMN), yet the neural codes supporting this ability remain poorly understood. We combined functional magnetic resonance imaging (fMRI) with vision and language artificial in...

Optimal Decay Rate for a Degenerate Hyperbolic-Parabolic Coupled System

Abstract. We investigate the long-time asymptotic behavior of a one-dimensional degenerate hyperbolic-parabolic coupled PDE system modeling diffusion-wave interactions with degeneracy at the interface. The system consists of a degenerate heat-wave equation on a finite interval, where the degeneracy strengths of the dif...

Multi-b-value diffusion-weighted imaging-based habitat imaging for preoperative prediction of histological grade and prognosis in soft tissue sarcoma: focusing on intratumoral heterogeneity

Background: Marked intratumoral heterogeneity (ITH) is a critical biological characteristic of soft tissue sarcoma (STS). This study aimed to develop a novel multi-b-value diffusion-weighted imaging (DWI)-based habitat imaging approach to quantify and visualize ITH for the preoperative prediction of the histological gr...