Exact Quantization of Topological Order Parameter in SU(N) Spin Models, N-ality Transformation and Ingappabilities.

We show that the ground-state expectation value of twisting operator is a topological order parameter for U(1)- and Z_{N}-symmetric symmetry-protected topological (SPT) phases in one-dimensional "spin" systems-it is quantized in the thermodynamic limit and can be used to identify different SPT phases and to diagnose phase transitions among them. We prove that this (nonlocal) order parameter must take values in Nth roots of unity, and its value can be changed by a generalized lattice translation acting as an N-ality transformation connecting distinct phases. This result also implies the Lieb-Schultz-Mattis (LSM) ingappability for SU(N) spins if we further impose a general translation symmetry.

Estimating in vivo power deposition density in thermotherapies based on ultrasound thermal strain imaging.

In thermal therapies, accurate estimation of in-tissue power deposition density (PDD) is essential for predicting temperature distributions over time or regularizing temperature imaging. Based on our previous work on ultrasound thermometry, namely, multi-thread thermal strain imaging (MT-TSI), this work develops an in vivo PDD estimation method. Specifically, by combining the TSI model infinitesimal echo strain filter with the bio-heat transfer theory (the Pennes equation), a finite-difference time-domain model is established to allow online extraction of the PDD.

Endovascular Coiling Combined With Tissue Glue Embolism to Treat 20 Cases of Iliac Arteriovenous Fistula Secondary to Deep Vein Thrombosis.

Objective: The objective of this study is to assess the feasibility of endovascular coiling combined with tissue glue embolism for the treatment of iliac arteriovenous fistula (AVF) secondary to deep vein thrombosis (DVT) of the lower extremities. In addition, we aim to summarize the treatment methods and enhance understanding of the disease.

Methods: This research analyzes the clinical data and medical imaging materials of 20 cases with iliac AVF secondary to lower extremity DVT, ranging from December 2014 to December 2020, at our hospital.

c-JUN: a chromatin repressor that limits mesoderm differentiation in human pluripotent stem cells.

Cell fate determination at the chromatin level is not fully comprehended. Here, we report that c-JUN acts on chromatin loci to limit mesoderm cell fate specification as cells exit pluripotency. Although c-JUN is widely expressed across various cell types in early embryogenesis, it is not essential for maintaining pluripotency.

Terahertz programmable metasurface based on solid-state plasma.

Terahertz modulation technology based on programmable metasurfaces can respond in real time to external signals or environmental changes, enabling flexible and adaptive control of terahertz waves. This technology demonstrates significant potential and importance across various fields, including communication, imaging, scientific research, security monitoring, and industrial applications. This paper proposes a terahertz programmable metasurface based on solid-state plasma, utilizing solid-state plasma devices to achieve dynamic control of properties such as the amplitude and phase of terahertz waves.