Brightening dark excitons in transition metal dichalcogenide monolayers (MLs) can provide large-area ultrathin devices for applications in quantum information science and optoelectronics. For practical applications of dark excitons, a robust and bright emission over a wide area at room temperature is desirable; however, no reliable approach has been demonstrated thus far. In this study, an efficient approach is presented for brightening dark excitons at room temperature over a large area of a WSe ML via coupling between plasmons and dark excitons.
View Article and Find Full Text PDFBackground: Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) using a fully covered metal stent (FCMS) or partially covered metal stent (PCMS) is performed to manage unresectable malignant biliary obstruction (MBO) following unsuccessful endoscopic retrograde cholangiopancreatography. This study aimed to compare FCMS and PCMS for EUS-HGS in patients with MBO.
Methods: We reviewed the EUS database to analyze consecutive patients with MBO who underwent EUS-HGS between November 2017 and March 2023.
Background: We externally validated the proposed 9th edition of the TNM staging classification with our institution's prospectively collected data and compared it to the 8th edition for overall survival (OS) and freedom from recurrence (FFR).
Methods: A retrospective analysis was conducted of 4029 cases of stage I-III non-small cell lung cancer that underwent surgical treatment from January 2004 to December 2020. Survival was compared using Kaplan-Meier curves and multivariable Cox regression analysis.
Endocrinol Metab (Seoul)
November 2024
Background: Sarcopenia, a multifactorial disorder involving metabolic disturbance, suggests potential for metabolite biomarkers. Carnitine (CN), essential for skeletal muscle energy metabolism, may be a candidate biomarker. We investigated whether CN metabolites are biomarkers for sarcopenia.
View Article and Find Full Text PDFRetained medullary cord (RMC) is a recently defined term denoting closed spinal dysraphism arising from the failure of regression in secondary neurulation. Despite the acknowledgment of this condition, there needs to be more literature elucidating the radiologic manifestations of RMC. This study aimed to describe the MR imaging findings of RMC.
View Article and Find Full Text PDFAge-related macular degeneration (AMD) is a major cause of vision loss in older adults. AMD is caused by degeneration in the macula of the retina. The retina is the highest oxygen consuming tissue in our body and is prone to oxidative damage.
View Article and Find Full Text PDFAims: To assess the relationships in nursing teamwork, psychological detachment from work during nonwork time, and burnout, and the mediating effect of psychological detachment on the relationship between nursing teamwork and burnout.
Background: Nurse burnout has serious implications for nurses' health and performance and the overall functioning of their organizations. Evidence on the relationships between nursing teamwork, psychological detachment, and nurse burnout is limited.
Background: People with HIV have a higher risk of developing non-AIDS-defining cancers in older age, leading to a significant population living with two conditions, HIV and cancer. There is an increasing interest in cannabis use for symptom management in people with chronic conditions; in 2023, the American Nurses Association officially recognised cannabis nursing as a specialty nursing practice focusing on the care of individuals seeking education/guidance in the therapeutic use of cannabis, supporting the urgency of its research. However, the scientific literature lacks a synthesised review in the focused populations.
View Article and Find Full Text PDFMany drugs have been discontinued during phase II/III breast cancer clinical trials due to lack of clinical efficacy, indicating shortcomings in predictive value of preclinical data. Nutrient availability in the tumour cell microenvironment and the dimensionality of in vitro tumour cells likely impact on drug responsiveness. Global proteomics experiments were conducted to assess the impact of nutrient availability and dimensionality of culture.
View Article and Find Full Text PDFBleomycin (BLM) is a natural product with established anticancer activity, attributed to its ability to cleave intracellular DNA. BLM complexes with iron (BLM-Fe) exhibit peroxidase-like activity, generate reactive oxygen species (ROS), and cause DNA cleavage. Inspired by the mechanism of BLM, we synthesized a novel conjugate of manganese tetraphenylporphyrin (MnTPP) with a biomimetic peptoid (i.
View Article and Find Full Text PDFBackground: Thoracic epidural analgesia (TEA), once the standard for pain management in major abdominal operations, is associated with postoperative complications, making preperitoneal continuous wound infiltration (CWI) a promising alternative. This study aimed to compare the effectiveness of CWI and TEA in managing postoperative pain after open pancreatoduodenectomy.
Methods: In a single-centre, randomized, open-label non-inferiority trial, adult patients undergoing elective open pancreatoduodenectomy were assigned to either CWI or TEA for pain management.
Importance: Individuals with mild traumatic brain injury (TBI) often report vision problems despite having normal visual acuity and fundus examinations. Diagnostics are needed for these patients.
Objective: To determine if a battery of assessments or machine-learning approaches can aid in diagnosing visual dysfunction in patients with mild TBI.
Trap-assisted charge recombination is one of the primary limitations of restricting the performance of organic solar cells. However, effectively reducing the presence of traps in the photoactive layer remains challenging. Herein, wide bandgap polymer donor PTzBI-dF is demonstrated as an effective modulator for enhancing the crystallinity of the bulk heterojunction active layers composed of D18 derivatives blended with Y6, leading to dense and ordered molecular packings, and thus, improves photoluminescence quenching properties.
View Article and Find Full Text PDFBackground: Gallbladder cancer is a rare disease with poor prognosis, for which surgical resection is considered the only curative treatment. The widespread adoption of laparoscopic cholecystectomy for benign biliary diseases has led to an increased incidence of postoperatively diagnosed gallbladder cancer. Several studies have proposed that tumors exceeding stage T2 require additional resection.
View Article and Find Full Text PDFTwo contradictory theories, Clar's sextet and resonance theory, explain the stability of conjugated macrocycles using localized and delocalized models, respectively. To reconcile these theories and gain better insights, PAH-containing porphyrinoids were chosen as a representative class of conjugated macrocycles. Two types of Clar's sextets were identified and proposed for the first time based on their interaction with global conjugated pathways: (i) shared sextets that integrate with and perturb the global resonance pathway, and (ii) independent sextets that are separate from the pathway and potentially stabilize or do not perturb it.
View Article and Find Full Text PDFBackground And Objectives: Evidence remains limited on the real-world prescription of very low-dose oral anticoagulation among frail patients with atrial fibrillation (AF). We described the practice patterns, effectiveness, and safety of very low-dose edoxaban (15 mg once daily).
Methods: Patients with AF prescribed edoxaban 15 mg once daily in 2 tertiary hospitals between 2016 and September 2022 were included.
Background: Ca release-activated Ca channel regulator 2A (CRACR2A) has been linked to immunodeficiency attributable to T-cell dysfunction in humans. We discovered that neutrophil CRACR2A promotes neutrophil adhesive and migratory functions by facilitating Ca mobilization and β2 integrin activation.
Methods: Myeloid-specific cracr2a conditional knockout mice and intravital microscopy were used to investigate the physiologic role of neutrophil cracr2a in neutrophil recruitment in vascular inflammation.
Chikungunya virus (CHIKV), responsible for a mosquito-borne viral illness, has rapidly spread worldwide, posing a significant global health threat. In this study, we explored the immunogenic variability of CHIKV envelope 2 (E2), a pivotal component in the anti-CHIKV immune response, using an in silico approach. After extracting the representative sequence types of the CHIKV E2 antigen, we predicted the structure-based B-cell epitopes and MHC I and II binding T-cell epitopes.
View Article and Find Full Text PDFThe objective of this study was to evaluate the diversity and prevalence of tick-borne protists in the Republic of Korea via DNA barcoding using 18S rRNA gene fragments and PCR. Between 2021 and 2022, questing ticks were collected using the flagging method, with a total of 13,375 ticks collected and pooled into 1003 samples. Of these, 50 tick pools were selected for DNA barcoding targeting the V4 and V9 regions of 18S rRNA using the MiSeq platform.
View Article and Find Full Text PDF, commonly known as the bonnet bellflower or deodeok, is primarily found in Eastern Asia. Its roots have been used traditionally across Asia to treat various ailments such as bronchitis, coughs, asthma, and inflammation. In our ongoing efforts to discover bioactive natural products, a phytochemical investigation of the -BuOH fraction of root extracts led to the isolation and identification of a new indole alkaloid -glycoside, deodeokaloid (D-indole-3-lactic acid -β-D-glucopyranoside) (), alongside known compounds tangshenoside I (), tangshenoside IV (), and chlorogenic acid () through HPLC purification.
View Article and Find Full Text PDFWith the increasing volume of synthetic fiber waste, interest in plastic reuse technologies has grown. To address this issue, physical and chemical recycling techniques for polyamide, a major component of textile waste, have been developed. This study investigates the remelting and reforming properties of four types of pristine and recycled polyamide 6, focusing on how the microstructural arrangement of recycled polyamides affects polymer fiber formation.
View Article and Find Full Text PDFFogging in automotive headlamps is a significant issue that affects both aesthetics and functionality. This study investigates the use of graphene-based nanocomposites to mitigate fogging by enhancing the hygroscopic properties of polybutylene terephthalate/acrylonitrile styrene acrylate (PBT/ASA) composites commonly used in headlamps. The incorporation of functionalized graphene improved the tensile and flexural strength of the nanocomposites, though it led to a reduction in elongation and melt flow.
View Article and Find Full Text PDFThe combination of software-defined networking (SDN) and satellite-ground integrated networks (SGINs) is gaining attention as a key infrastructure for meeting the granular quality-of-service (QoS) demands of next-generation mobile communications. However, due to the unpredictable nature of end-user requests and the limited resource capacity of low Earth orbit (LEO) satellites, improper Virtual Network Function (VNF) deployment can lead to significant increases in end-to-end (E2E) delay. To address this challenge, we propose an online algorithm that jointly deploys VNFs and forms routing paths in an event-driven manner in response to end-user requests.
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