Publications by authors named "Chenhao Yang"

This article investigates resilient source seeking problem of second-order multirobot systems (MRSs) under mixed cyberattacks, which consist of misbehaving and Denial-of-Service (DoS) attacks. The misbehaving attacks can cover several types of malicious attacks, such as false data injection, stubborn, and Byzantine, while the network connectivity may be compromised by DoS attacks, potentially resulting in a time-varying and disconnected digraph. To this end, a resilient source seeking algorithm is proposed by designing an auxiliary point for each agent such that the coordination problem is transformed into a point tracking one.

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The post-translational modification and stability regulation of RIG-I play critical roles in promoting IFN-I production and maintaining immune homeostasis. In this study, we found that ubiquitin-specific peptidase 1 (USP1) promotes RIG-I protein stability through deubiquitination, which in turn enhances antiviral immunity through the production of inflammatory cytokines, and inhibits the replication of influenza virus in MDCK cells. In contrast, USP1 knockdown inhibited the deubiquitination of RIG-I, decreased the RIG-I protein level, and significantly increased the influenza virus titer.

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Over a hundred years ago, mutants were detected in that led to a NOTCH in the wing tip. This original phenotype was reflected in the nomenclature of the gene family that was later cloned and characterized in the 1980s and found to be conserved across metazoans. NOTCH signaling relies on transmembrane ligands and receptors that require cellular contact for receptor activation, reflecting its role in multicellular organisms as an intercellular signaling strategy.

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Background: Coronavirus disease 2019 (COVID-19) has been coexisted with us, and corticosteroids are now recommended for patients with severe COVID-19 respiratory failure. Steroid treatments may increase intraocular pressure (IOP) and steroid-induced glaucoma (SIG). This study reported a rapid IOP elevation in a COVID-19 pneumonia child treated with systemic steroids within 3 days.

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Paraneoplastic cerebellar degeneration (PCD) is a heterogeneous group of neurologic syndromes associated with primary tumors. It is postulated that the immune system targets a tumor antigen that is also expressed endogenously in the nervous system. The majority of these patients are diagnosed with breast cancer or gynecological cancer, while it is exceedingly rare in lung squamous cell carcinoma (LUSC) patients.

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Background: Fatigue changes muscle activation patterns as an adaptation strategy in multi-joint movements. However, due to groups of muscles involved in running, the across-muscle neurological regulation before and after fatigue is unclear. The central nervous system may employ low-dimensional modular structures, known as muscle synergies, to describe the muscle coordination in a multi-joint movement such as running.

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Thermal-actuation and piezoresistive-detection effects have been employed to pump the effective quality factor of MEMS resonators, targeting simple self-oscillation and better sensing performance in the air. However, the ratio of the pumped effective quality factor to the inherent mechanical quality factor, crucial for characterizing the amplification, is hard to obtain. The main difficulty stems from hidden Lorentz peaks caused by feedthrough effects and the pump effect once the current is applied.

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Purpose: To evaluate the macular development in preterm infants with spontaneously regressed retinopathy of prematurity (ROP) utilizing handheld spectral domain optical coherence tomography (SD-OCT) during the early postnatal period.

Design: A cross-sectional observational study.

Methods: Using handheld SD-OCT, OCT images were acquired in non-sedated infants ages about 37 weeks(w) post-menstrual-age (PMA = gestational age in weeks + chronological age).

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Purpose: To explore the longitudinal changes in retinal and choroidal thickness and their relation with the onset of type 1 diabetes mellitus (T1DM) in children.

Methods: Thirty-eight children with T1DM and 71 healthy controls were included in this 3-year longitudinal study. Ophthalmic and systemic examinations were conducted on each participant.

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Background: The purpose of this study was to evaluate the repeatability and agreement of multispectral refraction topography (MRT) in measuring retinal refraction before and after cycloplegia in children. The results of this study will provide valuable insights into the accuracy and reliability of MRT as a tool for assessing retinal refraction in pediatric patients.

Methods: Children aged 7 to 18 years old were recruited for this prospective research.

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Aims: To investigate the fundus characteristics and macular optical coherence tomography angiography (OCTA) metrics in patients with myelinated retinal nerve fibers (MRNF) and to identify the associations among myopic parameters, fundus metrics, and OCTA metrics.

Methods: The single-center case-control study included 15 patients with monocular MRNF and 15 patients without MRNF, matched for age, affected eyes' spherical equivalent error (SER), and axial length (AL) between May 2021 and December 2021. Fundus features, including the entire MRNF area (Area1), the denser MRNF area (Area2), and the shortest distance from the fovea to the MRNF border (D), along with ocular parameters, including SER, AL, best corrected visual acuity (BCVA), and OCTA metrics at the fovea, including choroidal (ChT) and retinal (ReT) thicknesses at the fovea, the foveal avascular zone area (FAZ), foveal avascular zone perimeter (FAZP), FAZ-circularity index (FAZ-CI), and foveal vessel density in a 300-µm wide region (FD-300), were assessed.

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How to quickly and accurately identify the kinematic parameter errors is an important prerequisite for robot accuracy compensation. The laser tracker is used to measure and identify the kinematic parameters of the robot. The influence of laser tracker layout in robot pose measurement is analyzed, and the evaluation function of laser tracker layout is constructed to determine the optimal layout position.

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Background: Invasive deep brain stimulation (DBS) has been shown to be effective in treating patients with Parkinson's disease (PD), yet its clinical use is limited to patients at the advanced stage of the disease. Transcranial temporal interference stimulation (tTIS) may be a novel nonneurosurgical and safer alternative, yet its therapeutic potential remains unexplored.

Objective: This pilot study aims to examine the feasibility and safety of tTIS targeting the right globus pallidus internus (GPi) for motor symptoms in patients with PD.

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Article Synopsis
  • This study investigates the safety and complications of pediatric ophthalmic ambulatory surgery under general anesthesia, focusing on data from 4,616 patients over four years.
  • Common procedures included chalazion treatment and strabismus surgery, with an average operation time of 25 minutes and a brief hospital stay of about 8.5 hours.
  • Findings revealed minimal complications, such as some delayed discharges and infections, suggesting that this surgical approach is both feasible and generally safe for children.
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Aim: To identify the differential methylation sites (DMS) and their according genes associated with diabetic retinopathy (DR) development in type 1 diabetes (T1DM) children.

Methods: This study consists of two surveys. A total of 40 T1DM children was included in the first survey.

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Purpose: To evaluate longitudinal changes in optical coherence tomography angiography (OCTA) metrics in children and adolescents with type 1 diabetes (T1D).

Methods: This prospective observational cohort study included thirty-two eyes from thirty T1D children with no history of diabetic retinopathy (DR) who were followed up for 4 years. Participants underwent OCTA examinations at baseline and during follow-up.

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Introduction: This study aimed to investigate changes in retinal microvascular morphology and associated factors, and their relationship with diabetic retinopathy (DR) in children with type 1 diabetes mellitus (T1DM).

Methods: Thirty-eight children enrolled in this 3-year follow-up study underwent complete ophthalmic examinations including fundus photography. Retinal vascular parameters were measured automatically and compared between baseline and follow-up.

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Purpose: To determine the differences in myopia control efficiency and corneal reshaping between three different brands of orthokeratology (OK) lenses (Lucid, Euclid, and Alpha).

Method: We retrospectively reviewed subjects who started simultaneously using different brands of OK lenses. For each participant, every 6 months in the 19 months of following, the changes in axial length (AL), horizontal and vertical maximum distances of the treatment zone (HMDTZ and VMDTZ), width of the high convex zone (WHCZ), distance of decentration, and horizontal and vertical components of the decentration vector were measured.

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The utilization of compression garments (CGs) has demonstrated the potential to improve athletic performance; however, the specific mechanisms underlying this enhancement remain a subject of further investigation. This study aimed to examine the impact of CGs on running mechanics and muscle synergies from a neuromuscular control perspective. Twelve adult males ran on a treadmill at 12 km/h, while data pertaining to lower limb kinematics, kinetics, and electromyography were collected under two clothing conditions: whole leg compression garments and control.

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•Neurodegeneration precede microcirculatory deterioration in DR. Early signs can be seen in DM patients without visible DR symptoms, such as glial cell apoptosis and thinner retinal nerve fiber layer.•Peripapillary microvascular abnormalities in the peripapillary region may affect the normal metabolism of neurons and eventually aggravate the process of DR.

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Background: To investigate whether iris blood flow and iris thickness at the iris smooth muscle region affect the pupil diameter at rest and after drug-induced mydriasis in patients with type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM).

Methods: T1DM patients and healthy children were recruited from the SCADE cohort. T2DM patients and healthy adults were recruited from patients undergoing cataract surgery at Shanghai General Hospital.

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