A Modeling Method of Sea Surface Radio Channels based on EM Simulation

Proceedings of the 2021 International Workshop on Modern Science and Technology; September 29, 2021conference pape

Neurofeedback training for executive function in ADHD children:a systematic review and meta-analysis

Executive function deficits are commonly observed in children diagnosed with attention deficit hyperactivity disorder (ADHD). This research investigates the effectiveness of neurofeedback training (NFT) in improving executive functions among this group. Studies were meticulously selected following stringent inclusion and exclusion criteria. The quality of these studies was assessed using the PEDro scale. Seventeen RCT studies were identified, totaling 939 participants. We observed significant improvements in global executive function (p < 0.055), inhibitory control (p < 0.0001) and working memory (p < 0.05) following NFT. Notably, NFT exceeding 1,260 min was more effective in enhancing inhibitory control (p < 0.01) and working memory (p < 0.01). Additionally, the effects of NFT on inhibitory control (p = 0.05) and working memory (p < 0.01) were found to be enduring. NFT is an effective intervention for improving inhibitory control and working memory in children with ADHD. Working memory exhibits a more significant enhancement when the duration exceeds 1260 min, while inhibitory control follows closely behind. Moreover, it has a more sustained effect on working memory, alongside a notable albeit secondary effect on inhibitory control

A Comparative Study of Right Ventricular Apical Pacing and Right Ventricular Septal Pacing

Objective: Assessment of cardiac function by the assessment of ventricular pacing and right ventricular apex pacing. Method: Analysis of 30 patients with VVI pacemaker (pacing RVA, right ventricular apical pacing RVS 15 cases) was analyzed, and the differences of cardiac function and pacing parameters were analyzed in one year. Results: There was no significant difference in the impedance, voltage threshold and R wave height between the 1 year after the effective pacing and the years after the pacing electrode. 1 year after the two groups of patients with significant differences in EF. Conclusion: Right ventricular septal pacing and right ventricular apical pacing are equally safe and effective, right ventricular apical pacing can lead to left ventricular systolic dysfunction and decreased left ventricular function

Identification of Potential Biomarkers and Metabolic Profiling of Serum in Ovarian Cancer Patients Using UPLC/Q-TOF MS

Background/Aims: Ovarian cancer (OC) is a malignant neoplasm of the female reproductive system with a high mortality rate. Identifying useful biomarkers and clarifying the molecular pathogenesis of OC are critical for early diagnosis and treatment. The aim of the study was to identify candidate biomarkers and explore metabolic changes of OC. Methods: A two-stage design was used in our study, with a discovery cohort of OC cases (n = 30) and controls (n = 30) and an independent cohort of cases (n = 17) and controls (n = 18) for validation. The serum metabolic profiling was investigated by ultra-performance liquid chromatography and quadrupole time-of-fight mass spectrometry with positive electrospray ionization. Results: A total of 18 metabolites closely related to OC were identified in the discovery stage, of which 12 were confirmed in the validation cohort. Metabolic pathways in OC related to these biomarkers included fatty acid β-oxidation, phospholipid metabolism, and bile acid metabolism, which are closely related to the proliferation, invasion, and metastasis of cancer cells. Multiple logistic regression analysis of these metabolites showed that 2-piperidinone and 1-heptadecanoylglycerophosphoethanolamine were potential biomarkers of OC, with high sensitivity (96.7%), specificity (66.7%), and area under the receiver operating characteristic curve value (0.894). Conclusion: These findings provide insight into the pathogenesis pathogenesis of OC and may be useful for clinical diagnosis and treatment