Understanding the multi-sign communication system: A study on Peking Opera stage translation

Peking Opera is an artist-centered art rather than a director-centered one, and its true significance lies in its stage performance. However, the realization of the meaning of the “Performance Text” is the result of the joint action of different sign systems. Therefore, translators engaged in the stage translation of Peking Opera must understand the meaning and operation mechanism of this multi-sign system. From the perspective of semiotics of theater and drama, this paper deconstructs the Peking Opera sign system and divides them into several subsystems, describes in detail the characteristics of each secondary system, especially their semiotization process, their manners of meaning transmission, the rules of interaction among them, and finally presents the meaning generation and communication mechanism of this “Performance Text”. On this basis, the paper clarifies that the main tasks and challenges faced by translators engaged in Peking Opera stage translation which are they should not only translate the language but also need to find time and space to realize the transformation of the meaning of the non-verbal sign system

Methylprednisolone as Adjunct to Endovascular Thrombectomy for Large-Vessel Occlusion Stroke

Importance It is uncertain whether intravenous methylprednisolone improves outcomes for patients with acute ischemic stroke due to large-vessel occlusion (LVO) undergoing endovascular thrombectomy. Objective To assess the efficacy and adverse events of adjunctive intravenous low-dose methylprednisolone to endovascular thrombectomy for acute ischemic stroke secondary to LVO. Design, Setting, and Participants This investigator-initiated, randomized, double-blind, placebo-controlled trial was implemented at 82 hospitals in China, enrolling 1680 patients with stroke and proximal intracranial LVO presenting within 24 hours of time last known to be well. Recruitment took place between February 9, 2022, and June 30, 2023, with a final follow-up on September 30, 2023.InterventionsEligible patients were randomly assigned to intravenous methylprednisolone (n = 839) at 2 mg/kg/d or placebo (n = 841) for 3 days adjunctive to endovascular thrombectomy. Main Outcomes and Measures The primary efficacy outcome was disability level at 90 days as measured by the overall distribution of the modified Rankin Scale scores (range, 0 [no symptoms] to 6 [death]). The primary safety outcomes included mortality at 90 days and the incidence of symptomatic intracranial hemorrhage within 48 hours. Results Among 1680 patients randomized (median age, 69 years; 727 female [43.3%]), 1673 (99.6%) completed the trial. The median 90-day modified Rankin Scale score was 3 (IQR, 1-5) in the methylprednisolone group vs 3 (IQR, 1-6) in the placebo group (adjusted generalized odds ratio for a lower level of disability, 1.10 [95% CI, 0.96-1.25]; P = .17). In the methylprednisolone group, there was a lower mortality rate (23.2% vs 28.5%; adjusted risk ratio, 0.84 [95% CI, 0.71-0.98]; P = .03) and a lower rate of symptomatic intracranial hemorrhage (8.6% vs 11.7%; adjusted risk ratio, 0.74 [95% CI, 0.55-0.99]; P = .04) compared with placebo. Conclusions and Relevance Among patients with acute ischemic stroke due to LVO undergoing endovascular thrombectomy, adjunctive methylprednisolone added to endovascular thrombectomy did not significantly improve the degree of overall disability.Trial RegistrationChiCTR.org.cn Identifier: ChiCTR210005172

Parallel translation process in consecutive interpreting: Differences between beginning and advanced interpreting students

This study examines the parallel translation process of 30 beginning and 30 advanced consecutive interpreting students (BISs and AISs). It investigates the characteristics and efficiency of parallel translation processing employed during the comprehension phase across proficiency levels. Quantitative and qualitative analyses reveal AISs demonstrated superior information reformulation capabilities, particularly for high-density content, along with more efficient note-taking and utilization compared to BISs. A key finding is that AISs interpreted more propositions than they recorded in their notes, reflecting stronger encoding and memory retention. In contrast, BISs relied heavily on external notation instead of internal memory retrieval, only interpreting a portion of their notes while failing to decipher the rest. These findings uncover complex yet differentiated parallel processing approaches across skill levels, with more successful comprehension-to-production strategies utilized by AISs. Enhancing students’ metacognitive awareness regarding parallel processing techniques may improve information processing efficiency during source language comprehension, ultimately enhancing target language reformulation accuracy and completeness

Ultra-short baseline positioning delay estimation based on signal preprocessing and fourth-order cumulant

To address the problem that the traditional generalized cross correlation (GCC) method in ultra-short baseline (USBL) positioning systems has a poor delay estimation accuracy in a low signal-to-noise ratio environment or complex noise background, a generalized quadratic cross correlation (GQCC) time delay estimation algorithm based on signal preprocessing and fourth-order cumulants is proposed. The noisy signal was first preprocessed using singular value decomposition and wavelet denoising. Then, the delay was calculated using an algorithm that combined the GQCC and the fourth-order cumulant. The results of the simulation and sea trial demonstrate that the proposed method is superior to the GCC method and the GQCC method and may significantly increase the positioning accuracy of the USBL system. This technique can offer a fresh technological perspective for weak signal detection and passive positioning of small targets in ocean detection

An Installation Angle Error Calibration Method in an Ultra-Short Baseline System Based on a Dual Transponder

The installation error of an acoustic transceiver array is one of the important error sources in an ultra-short baseline (USBL) system. In a USBL system with a positioning accuracy of 0.5%, an installation error angle of 1° will lead to a positioning error of 1.7% times the slant distance. In this paper, a dual transponder-based installation angle error calibration method for USBL is proposed. First, the positioning errors induced by various installation angles are deduced and analysed using the linear measurement of seafloor targets. Then, an iterative algorithm is proposed that estimates the rolling alignment error, pitching alignment error, and heading alignment error, in that order. The simulation and experienced results show that, after three iterations, the estimates of the three alignment errors can converge quickly, all of the estimates converge to within 0.001° and the estimated values are very close to the true values. The horizontal positioning error caused by the installation error angle can be reduced by nearly 75%. The method has good effectiveness and robustness, and can greatly improve the positioning accuracy of the USBL system