Advanced power structure for enhanced optical performance of AMOLED displays at low luminance levels.

To improve the image quality of active-matrix organic light-emitting diode (AMOLED) displays at low luminance levels, a novel power structure is proposed. Its effectiveness was validated by fabricating a 13-inch AMOLED panel with a tandem OLED and evaluating its optical performance. Compared to the conventional structure, the proposed structure reduced panel luminance deviation by 12% and color deviation by 41%, while also achieving a 41% reduction in hysteresis-induced color shift.

Resistant Hilar Stricture Following Transarterial Bleomycin-Lipiodol Embolization for a Large Hepatic Hemangioma.

Symptomatic hepatic hemangiomas are commonly treated by transcatheter arterial embolization as an alternative to surgical resection. Bile duct complications are rare. An 80-year-old woman had a progressive refractory stricture postbleomycin transcatheter arterial chemoembolization.

Identifying the impossible: piecemeal cold snare resection perforation.

Background And Aim: Piecemeal cold snare resection (CSR) is an increasingly adopted technique for large nonpedunculated colorectal polyps because of its favorable safety profile. Although adverse events are rare, perforation after CSR has been reported infrequently. We present a video case of intraprocedural perforation during piecemeal CSR.

Establishment of a screening method for genetically modified potatoes using multiplex PCR.

A wide variety of genetically modified (GM) potatoes have been developed and commercialized globally, necessitating regulations on the import of unauthorized GM potato. Korea has not authorized any GM potatoes, which mandates a strict zero-tolerance policy. Consequently, the GM potato-specific screening method was developed with high coverage using multiplex PCR.

Electrochemical deprotonation of halohydrins enables cascading reactions for CO capture and conversion into ethylene carbonate.

Electrochemical processes for CO mitigation can be broadly categorized into two approaches: CO capture via electrochemically generated bases and CO conversion through electrochemical reduction. Recent advancements have been concentrated to developing methods that efficiently capture and release CO or reduce base-CO adducts while regenerating bases for subsequent CO capture. In this study, we introduce an electrochemical strategy that integrates CO capture and conversion through a series of domino reactions initiated by the electrochemical generation of organic bases.

Biocompatible Lactulose-Based Resistive Random Access Memory for Implantable Electronics.

Bioimplantable memory devices for digital healthcare must satisfy various requirements, such as biocompatibility and biostability. In this study, a biocompatible and biostable resistive random-access memory (RRAM) based on lactulose was developed as a bioimplantable memory device. Lactulose is a nonabsorbable disaccharide that includes multiple hydroxyl groups (-OH).

Transparent, metal-free PEDOT:PSS neural interfaces for simultaneous recording of low-noise electrophysiology and artifact-free two-photon imaging.

Simultaneous two-photon imaging and electrophysiological recordings offer considerable potential for advancing neurological research and therapies. However, traditional metal-based neural interfaces suffer from photoelectric artifacts, while existing transparent implants rely on opaque interconnect lines to address conductivity limitations. Herein, we developed an optically transparent poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) neural electrode array with transparent electrodes and interconnect lines.

Effectiveness of a mobile application game (NDTx-01) in enhancing social communication skills in adolescents with autism spectrum disorder or social communication disorder: A randomized controlled pilot trial.

Aim: Adolescents diagnosed with autism spectrum disorder (ASD) or social communication disorder (SCD) experience social communication difficulties. Social skills training (SST) for this population has proven effective, although its use remains restricted due to limited accessibility. This multicenter, parallel, open-label, assessor-blinded, randomized controlled pilot trial evaluated the efficacy of NDTx-01, a mobile application game integrating SST, in patients aged 10 to 18 years diagnosed with ASD or SCD.

Improvement of flicker phenomenon at low frequencies in AMOLED displays by applying compensation scheme of variable reset voltage.

In this study, we propose a novel compensation scheme that utilizes variable reset voltage (VRV) to mitigate the flicker phenomenon observed in low temperature poly-Si and oxide (LTPO) active-matrix organic light emitting diode (AMOLED) displays at low frequencies. We have experimentally demonstrated that the flicker caused by luminance fluctuations at low frequencies is the result of interactions between the slow transient de-trapping of the oxide thin film transistor (TFT) and hysteresis of the driving TFT (D-TFT). Although slow transient de-trapping of the oxide TFT is difficult to be compensated, we have demonstrated that D-TFT hysteresis can be modulated by adjusting the gate in panel (GIP) timing and reset voltage.

Biocompatible Neuromorphic Device Array Based on Naturally Sourced Mucin for Implantable Bioelectronics.

Although the demand for intelligent implantable bioelectronics is steadily increasing, their progress is hindered by the limited availability of materials with sufficient biocompatibility for implantation. Herein, we propose a neuromorphic device with human brain-inspired biomimetic functionality utilizing naturally sourced mucin as the active layer material. The mucin-based neuromorphic memristor (MNM) array successfully mimics key synaptic behaviors uniformly, including a paired-pulse facilitation index of 122.

Practice patterns for eosinophilic esophagitis vary widely among Canadian gastroenterologists: a nationwide survey.

Introduction: Eosinophilic esophagitis (EoE) is a chronic allergic, type 2, immune-mediated condition of the oesophagus, resulting in dysmotility and oesophageal stricturing. This study aims to identify practice variation among Canadian gastroenterologists treating adults with EoE.

Methods: A cross-sectional, web-based survey was distributed to Canadian gastroenterologists through the Canadian Association of Gastroenterology and administrations of Canadian universities.

Chimeric Antigen Receptor T-Cell-Associated Cholangiopathy: First Reported Case of a Complication of Chimeric Antigen Receptor T-Cell Therapy.

Chimeric antigen receptor T-cell (CAR-T) therapy is a novel immunotherapy for the treatment of refractory malignancies. While various complications have been described previously, sclerosing cholangitis has not been reported. We report the first description of sclerosing cholangitis secondary to Tecartus CAR-T therapy in a 67-year-old man with refractory stage IV mantle cell lymphoma.

Endurable IGZO/SnS/IGZO Heterojunction Phototransistor Arrays for Image Sensors.

Optoelectronic devices require stable operation to detect repetitive visual information. In this study, endurable arrays based on heterojunction phototransistors composed of indium-gallium-zinc oxide (IGZO) with a low dark current and tin sulfide (SnS) capable of absorbing visible light are developed for image sensors. The tandem structure of IGZO/SnS/IGZO (ISI) enables stable operation under repetitive exposure to visible light by improving the transport ability of the photoexcited carriers through mitigated trap sites and their separation into each IGZO layer.

Visible-Light-Stimulated Optoelectronic Neuromorphic Transistor Based on Indium-Gallium-Zinc Oxide via BiTe Light Absorption Layer.

To emulate a visual perception system, a bismuth telluride (BiTe)/indium-gallium-zinc oxide (IGZO) heterostructure is introduced for optoelectronic neuromorphic transistors (ONTs). Amorphous IGZO is applied as a channel layer to exhibit low off-current, high mobility, and persistent photoconductivity, enabling light-stimulated neuromorphic characteristics. The atomic ratio of In/Ga/Zn was 9.

Pseudologic Optical Circuit Method for Advanced Color Sensing in IGZO Phototransistor Arrays with Chlorophyll Absorption Layers.

Recently, the elimination of color filters has become a key focus in photodetector research because of the potential to create more compact and cost-effective sensor systems. In this study, a novel concept of a filter-free color-discrimination photosensor using an indium gallium zinc oxide (IGZO, In/Ga/Zn = 3.1:2.

Spherical Shell Bioprinting to Produce Uniform Spheroids with Controlled Sizes.

Conventional cell spheroid production methods are largely manual, leading to variations in size and shape that compromise consistency and reliability for use in cell-based therapeutic applications. To enhance spheroid production, a spherical shell bioprinting system was implemented, enabling the high-throughput generation of uniform cell spheroids with precisely controlled sizes. The system encapsulates cells within thin alginate hydrogel shells formed through bioprinting and ion crosslinking reactions.

A transparent p-type semiconductor designed a polarizability-enhanced strongly correlated insulator oxide matrix.

Electron-transporting transparent conducting oxides (TCOs) are a commercial reality, however, hole-transporting counterparts are far more challenging because of limited material design. Here, we propose a strategy for enhancing the hole conductivity without deteriorating the band gap () and workfunction () by Cu incorporation in a strongly correlated NiWO insulator. The optimal Cu-doped NiWO (CuNiWO) exhibits a resistivity reduction of ∼10 times NiWO as well as band-like charge transport with the hole mobility approaching 7 cm V s at 200 K, a deep of 5.

Esophageal Tuberculosis as a Rare Cause of Dysphagia: Case Report.

Introduction: The esophagus and duodenum are rare sites of manifestation for extrapulmonary tuberculosis (TB). Its rarity makes the diagnosis challenging, especially when no other organ is involved, and the endoscopic findings may resemble malignancy.

Case Presentation: We report a unique case of a 37-year-old woman who presented with dysphagia secondary to esophageal TB with an endoscopic appearance of a submucosal mass resembling malignancy.

Mucin-Rich Brain Metastasis May Show the T2-FLAIR Mismatch Sign: A Case Report and Literature Review.

This study describes a unique case of single mucin-rich brain metastasis in a patient with breast cancer, mimicking the T2-fluid attenuation inversion recovery (FLAIR) mismatch sign and masquerading as an isocitrate dehydrogenase-mutant astrocytoma. This case highlights the importance of considering mucin-rich lesions in the differential diagnosis of intracranial tumors exhibiting T2-FLAIR mismatch. Clinicians must recognize the potential convergence in imaging characteristics between these metastases and gliomas to guarantee prompt and accurate patient care.