Predicting Chern numbers in photonic crystals using generative adversarial network-based data augmentation.

The Chern number is the core of topological photonics, which is used to describe the topological properties of photonic crystals and other optical systems to realize the functional transmission and the control of photons within materials. However, the calculation process of Chern numbers is complex and time-consuming. To address this issue, we use the deep learning accompanied with Maxwell's equations to predict the Chern number of a two-dimensional photonic crystal with a square lattice in this paper.

Anemia, hematinic deficiencies, hyperhomocysteinemia, and serum gastric parietal cell antibody positivity in 588 patients with oral lichen planus.

Background/purpose: Our previous study found that 21.9 %, 13.6 %, 7.

Assessment of hemodynamic disturbances and impaired ventricular filling in asymptomatic fontan patients: A 4D flow CMR study.

Background: The Fontan procedure is a surgical intervention designed for patients with single ventricle physiology, wherein the systemic venous return is redirected into the pulmonary circulation, thereby facilitating passive pulmonary blood flow without the assistance of ventricular propulsion. Consequently, long-term follow-up of individuals who have undergone the asymptomatic Fontan procedure is essential.

Objectives: The aims of this investigation were to: 1) examine the impact of flow components and kinetic energy (KE) parameters on hemodynamic disturbances in asymptomatic Fontan patients and control group; 2) Assess left ventricular diastolic dysfunction through the analysis of 4D flow parameters across different Fontan sub-groups; 3) Compare intracardiac flow parameters among Fontan sub-groups based on morphological features of the left ventricle (LV) and right ventricle (RV).

Efficacy analysis of intratympanic injection of dexamethasone at different concentrations for the treatment of unilateral idiopathic sudden sensorineural hearing loss.

Objective: Our study tried to evaluate and compare the therapeutic efficacy of intratympanic injection of dexamethasone (DEX) at different concentrations for the treatment of idiopathic sudden sensorineural hearing loss (ISSNHL).

Methods: A prospective randomized controlled study was conducted on 203 patients with unilateral ISSNHL. Patients were divided into four groups: the control group (n = 47, systemic treatment only), the high-concentration group (n = 51, intratympanic injection of DEX 20 mg/ml), the medium-concentration group (n = 55, 10 mg/ml), and the low-concentration group (n = 50, 5 mg/ml).

Estimation of Diagnostic Test Accuracy Without Gold Standards.

The ideal evaluation of diagnostic test performance requires a reference test that is free of errors. However, for many diseases, obtaining such a "gold standard" reference is either impossible or prohibitively expensive. Estimating test accuracy in the absence of a gold standard is therefore a significant challenge.