314 research outputs found

    Forms and Functions of Conversational Repair in Mandarin Corpus from the Perspective of Interactional Linguistics

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    Repair frequently appears in our daily conversations as a vital mechanism sustaining effective communication. The purpose of this study is twofold: one is to investigate the specific forms and functions of self-initiated repair and other-initiated repair in Mandarin corpus; the other is to examine, from the perspective of interactional linguistics, how various forms of repair can affect the ongoing dialogue between the speaker and the recipient in Mandarin conversation. Through a thorough examination of repair instances extracted from the speech corpora of naturally occurring, face-to-face Mandarin interaction, findings suggest that self-initiated repair takes the form of word searches and complement, cut-off and correction, as well as recycling and replacement, while other-initiated repair takes the form of interjection, yes-no question, and specific interrogation. Moreover, repair in Mandarin dialogue has the functions of turn maintenance, ambiguity elimination, speculation verification, information confirmation, problem location, and inquiry implementation. This study can not only help readers better understand the forms and functions of repair mechanisms in Mandarin corpus but also contribute to contemporary academic research, offering valuable insights into the dynamics of linguistic interaction

    QIENet: Quantitative irradiance estimation network using recurrent neural network based on satellite remote sensing data

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    Global horizontal irradiance (GHI) plays a vital role in estimating solar energy resources, which are used to generate sustainable green energy. In order to estimate GHI with high spatial resolution, a quantitative irradiance estimation network, named QIENet, is proposed. Specifically, the temporal and spatial characteristics of remote sensing data of the satellite Himawari-8 are extracted and fused by recurrent neural network (RNN) and convolution operation, respectively. Not only remote sensing data, but also GHI-related time information (hour, day, and month) and geographical information (altitude, longitude, and latitude), are used as the inputs of QIENet. The satellite spectral channels B07 and B11 - B15 and time are recommended as model inputs for QIENet according to the spatial distributions of annual solar energy. Meanwhile, QIENet is able to capture the impact of various clouds on hourly GHI estimates. More importantly, QIENet does not overestimate ground observations and can also reduce RMSE by 27.51%/18.00%, increase R2 by 20.17%/9.42%, and increase r by 8.69%/3.54% compared with ERA5/NSRDB. Furthermore, QIENet is capable of providing a high-fidelity hourly GHI database with spatial resolution 0.02{\deg} * 0.02{\deg}(approximately 2km * 2km) for many applied energy fields

    Clinical study on high-risk factors for contralateral lymph node metastasis in unilateral papillary thyroid carcinoma

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    Background and purpose: The occurrence of lymph node metastasis in papillary thyroid cancer (PTC) can have adverse effects on the prognosis of patients. This study aimed to investigate risk factors related to the occurrence of contralateral central lymph node metastases (CLNM) and contralateral lateral lymph node metastases (LLNM) when imaging suspected ipsilateral LLNM in unilateral PTC. Methods: We retrospectively analyzed the clinical data of 526 patients who received surgical treatment in the same treatment group of Jiangsu Cancer Hospital Head and Neck Surgery Department from January 2011 to December 2021. They were initially treated with total thyroidectomy and bilateral central lymph node dissection (CLND) ± lateral lymph node dissection, and their postoperative pathology was uni-PTC. This study analyzed the relevant high-risk factors of contralateral lymph node metastasis. Results: Among the 526 patients, 295 had CLNM, including 272 ipsilateral CLNM, 129 contralateral CLNM and 106 of both sides CLNM; 165 patients had LLNM including 129 ipsilateral LLNM, 18 contralateral LLNM, and 18 of both ipsilateral and contralateral LLNM. Contralateral CLNM occurred in 65 (17.8%) of 365 patients who underwent preventive CLND, and contralateral CLNM was found in 68 (42.2%) of 161 patients with therapeutic CLND. Univariate and multivariate regression analyses showed that contralateral CLNM was associated with maximum diameter of tumor ≥2 cm, multiple foci, no Hashimoto's thyroiditis, tumor invasion, number of CLNM≥6 and age <55 years (P<0.05). Maximum diameter of tumor ≥2 cm was related to contralateral LLNM (P<0.05), while lymph extracapsular extension and lymph node metastasis at tumor side were independent risk factors for contralateral CLNM and contralateral LLNM (P<0.05). Follow-up showed that 5-year overall survival (OS) rate was 97.9% and 5-year disease-free survival (DFS) rate was 97.5%. Conclusion: Contralateral CLNM is more likely to occur in patients with maximum diameter of tumor ≥2 cm, multiple foci, no Hashimoto's thyroiditis, number of CLNM ≥6, age <55 years, tumor and lymph extracapsular extension and lymph node metastasis at the cancer side. In clinical practice, bilateral CLND should be considered for patients with high-risk factors to reduce the residual recurrence of the tumor. Since metastatic rate of contralateral LLNM is relatively low, preventive contralateral lateral lymph node dissection should not be performed routinely when there are no high-risk factors mentioned above

    Effect of Exercise Intervention on Social Ability of ADHD Children

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    The incidence rate of attention deficit hyperactivity disorder (ADHD) is 7.25% in China. The main symptoms are attention deficit laxation, behavior impulsivity, social disorder and so on. Children aged 3-6 are in the golden age of social ability development. Therefore, if ADHD children at this age do not get correct and effective interventions, it will have a far-reaching impact on their social ability. In order to explore new intervention measures for ADHD children and improve their social ability, this study will intervene ADHD children through sports intervention, so as to provide theoretical and experimental basis for improving their social ability. A total of 12 hyperactivity prone children aged 3-6 years were recruited in this study. The subjects were intervened through engaging in KDL sports game, parent-child homework and parent-child carnival for four months. We used Achenbach children\u27s behavior scale (CBCL) to evaluate children\u27s social ability from activity ability, social ability and learning. In order to reduce the experimental error, before using the CBCL scale, the researchers have been trained in learning and understanding the specific rules and scoring methods of the CBCL scale to ensure that evaluated data have good reliability and validity. After data collection, SPSS 23.0 was used to conduct statistical analysis on the data. The results showed that after the intervention, the ADHD children significantly improved their social ability from the baseline to the post-test (Tsocial = -1.39, psocial = 0.01 \u3c 0.05). However, the results showed that there was no significant difference in children\u27s activity ability and learning over time (Tactivity = 0.42, pactivity = 0.533 \u3e 0.05; Tlearning = -0.12, plearning = 0.756 \u3e 0.05). Exercise intervention can effectively improve the social ability of ADHD children, which is more harmonious with their peers and more able to communicate with their families. We suggest to carry out exercise intervention for more children with ADHD and to integrate behavioral therapy with multi-directional intervention

    Dual-Polarized On-Chip Antenna for 300 GHz Full-Duplex Communication System

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    This paper presents a novel design of compact orthogonally polarized on-chip antenna to realize 300 GHz full-duplex communication system with high isolation. It consists of a dipole antenna for horizontal polarization and a disk-loaded monopole antenna for vertical polarization. They are in good cross-polarization state with more than 90 dB of self-interference suppression and then can be used to achieve good isolation between transmitting and receiving antennas. In addition, two dual-polarized antennas have been adopted in two separated transceivers to study their isolation performance. Furthermore, this compact antenna only occupies an active area of 390 μm × 300 μm × 78 μm and can be used for multiple-input multiple-output application as well

    Identification of key genes and pathways in human clear cell renal cell carcinoma (ccRCC) by co-expression analysis

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    Human clear cell renal cell carcinoma (ccRCC) is the most common solid lesion within kidney, and its prognostic is influenced by the progression covering a complex network of gene interactions. In our study, we screened differential expressed genes, and constructed protein-protein interaction (PPI) network and a weighted gene co-expression network to identify key genes and pathways associated with the progression of ccRCC (n = 56). Functional and pathway enrichment analysis demonstrated that upregulated differentially expressed genes (DEGs) were significantly enriched in response to wounding, positive regulation of immune system process, leukocyte activation, immune response and cell activation. Downregulated DEGs were significantly enriched in oxidation reduction, monovalent inorganic cation transport, ion transport, excretion and anion transport. In the PPI network, top 10 hub genes were identified (TOP2A, MYC, ALB, CDK1, VEGFA, MMP9, PTPRC, CASR, EGFR and PTGS2). In co-expression network, 6 ccRCC-related modules were identified. They were associated with immune response, metabolic process, cell cycle regulation, angiogenesis and ion transport. In conclusion, our study illustrated the hub genes and pathways involved in the progress of ccRCC, and further molecular biological experiments are needed to confirm the function of the candidate biomarkers in human ccRCC
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