Comparison between Craniospinal Irradiation and Limited-Field Radiation in Patients with Non-metastatic Bifocal Germinoma

Bo Li,Wenyi Lv,Chunde Li,Jiongxian Yang,Jiajia Chen,Jin Feng,Li Chen,Zhenyu Ma,Youqi Li,Jiayi Wang,Yanwei Liu,Yanong Li,Shuai Liu,Shiqi Luo,Xiaoguang Qiu 대한암학회 2020 Cancer Research and Treatment Vol.52 No.4

Purpose Whether craniospinal irradiation (CSI) could be replaced by limited-field radiation in non-metastatic bifocal germinoma remains controversial. We addressed the issue based on the data from our series and the literature. Materials and Methods Data from 49 patients diagnosed with non-metastatic bifocal germinoma at our hospital during the last 10 years were collected. The Pediatric Quality of Life Inventory 4.0 was used to evaluate health-related quality of life (HRQOL). Additionally, 81 patients identified from the literature were also analyzed independently. Results In our cohort, 34 patients had tumors in the sellar/suprasellar (S/SS) plus pineal gland (PG) regions and 15 in the S/SS plus basal ganglia/thalamus (BG/T) regions. The median follow-up period was 52 months (range, 10 to 134 months). Our survival analysis showed that patients treated with CSI (n=12) or whole-brain radiotherapy (WBRT; n=34) had comparable disease-free survival (DFS; p=0.540), but better DFS than those treated with focal radiotherapy (FR; n=3, p=0.016). All 81 patients from the literature had tumors in the S/SS+PG regions. Relapses were documented in 4/45 patients treated with FR, 2/17 treated with whole-ventricle irradiation, 0/4 treated with WBRT, and 1/15 treated with CSI. Survival analysis did not reveal DFS differences between the types of radiation field (p=0.785). HRQOL analysis (n=44) in our cohort found that, compared with S/SS+PG germinoma, patients with BG/T involvement had significantly lower scores in social and school domains. However, HRQOL difference between patients treated with CSI and those not treated with CSI was not significant. Conclusion In patients with non-metastatic bifocal germinoma, it is rational that CSI could be replaced by limited-field radiation. HRQOL in patients with BG/T involvement was poorer.

Prof. Park in the eye from Chinese friend

( Shiqi Li ) 한국수학교육학회 2015 뉴스레터 Vol.31 No.3

Anti-invasive and Anti-metastatic Effects of Arg-asp (Rd) on Human Salivary Adenoid Cystic Carcinoma

Li, Fenghe,Yu, Guangyan,Li, Shenglin,Peng, Shiqi,Fu, Jia,Wu, Dengcheng Korean Academy of Oral Biology and the UCLA Dental 2001 International Journal of Oral Biology Vol.26 No.3

The objective of the present study is to test the anti-invasive and anti-metastatic effect of Arg-Asp (RD), a newly developed peptide with the same effect as that of RGD, on SACC-LM (a highly pulmonary metastatic salivary adenoid cystic carcinoma cell line) cells. The ability of SACC-LM cells to invade in a modified Boyden chamber was inhibited by 56%, 64% and 65% when the final concentration of RD was 1, 5, and 25㎍/ml, respectively. The anti-metastatic effect of orally administered RD on experimental metastatic SACC-LM was observed by the survival rate and the number of pulmonary metastatic foci/mouse. When RD (7.5, 30, and 120mg/kg) was administered orally the survival rate increased in the treated mice 66.14(14.47), 64.75(8.43), 69.86(12.77) days, respectively, compared with 43.56 (4.95) days in the control mice (p<0.05). The number of pulmonary metastatic foci decreased significantly (6.5 Vs 20.29, p<0.05) for 120mg/kg RD, whereas the incidence of pulmonary metastasis was not significantly decreased at lower doses of RD. The results of this study suggest that RD has low toxicity and possesses an anti-invasive and anti-metastatic effect on SACC-LM and that RD may be administered orally.

The Realistic Path of China’s Civil “Case Selection” Retrial

SHIQI CHENG(청스치),LI TANG(탕리) 동아대학교 법학연구소 2024 國際去來와 法 Vol.- No.45

중국 최고인민법원은 2021년 10월 1일부터 2023년 9월 28일까지 2년간 ‘4급 법원의 심급 기능 개선 및 개혁 시범사업’을 실시하였다. 하지만, 동 시범사업을 통해 민사재심 신청에 관한 절차와 기준의 개혁은 4급 법원(기층인민법원-중급인민법원-고급인민법원-최고인민법원)의 ‘심급모순’이라는 문제와 이로 인한 일부 사건의 높은 항소율과 재심율이 발생하는 등 새로운 문제가 발생함으로써 근본적 해결방안이 되지 못함을 확인하였다. 이러한 문제가 발생하는 근본원인을 보면, (1) 1심 법원이 일부 특수사건에 대해 사건의 사실을 충분히 규명하지 못해 높은 상고율을 형성하였고, (2) 2심 법원은 최종심으로서 기능에 국한되어 자연히 사실심 기능을 잃었으며, (3) 높은 원심 유지율을 추구하는 최종심은 사실인정에 하자가 있는 사건을 그대로 유지함으로써 높은 재심율을 형성하게 된 것이다. 한편, 인민법원의 심급이 많거나 적게 되면, 법원의 자원 낭비는 물론, 안건 해결의 불균형이라는 문제가 발생하게 된다. 즉, 불명확한 사실 규명으로 인해 높은 상고율이 발생하거나 높은 재심율이 발생하는데, 이는 결국 인민법원이 사실문제나 법률문제를 모호하게 구분하는 데에서 비롯된다. 중국이 민사사건에 대하여 4급 법원 제도를 가지지만, 대부분 2심을 최종심으로 하고 있어 재심사건이 증가하고 있다. 이러한 재심절차는 귀중한 사법자원을 낭비할 뿐만 아니라, 사법의 질과 효력 및 권위를 심각하게 훼손하고 있다. 이에 중국은 국정에 맞는 심급 최종심제도를 구축하여 근본적으로 특수사건에 대하여는 심급 확대를 통해 문제를 해결할 필요가 있다. 또 과거 일부 상고율이 높았거나 재심율이 높은 사건을 전형판례화하여 특수사건으로 식별하고, 이에 대해 제한적인 제3심 최종심제도를 시행하여야 한다. The two-year pilot reform of the “Improvement of the Functional Positioning of the Four-Level Courts” conducted by the Supreme Peoples Court of The People’s Republic of China has conclusively demonstrated that modifications to the civil retrial application process and criteria do not fundamentally resolve the problem of “hierarchical contradiction” within the four-tier court system and the secondary problems of high rate of appeals and retrials in certain cases. The crux of the issue lies in the inability of first-instance courts to thoroughly ascertain facts in specific cases, leading to a high rate of appeals. Meanwhile, second-instance courts, constrained by their final-instance adjudicatory role and lacking a natural fact-finding function, often uphold flawed factual determinations to maintain a high rate of case affirmation, resulting in a high retrial rate. Both the surplus and deficit in adjudicative hierarchy supply can lead to a mismatch between the supply and the case-specific demands of the hierarchical system. Ultimately, the high rates of appeals and retrials caused by “factual issues” are due to the insufficient supply of adjudicative hierarchy in handling specific cases. The retrial procedures arising from the insufficient supply of trial levels not only waste precious judicial resources but also severely undermine judicial efficiency and authority. Therefore, China needs to establish a tiered final-instance adjudication system that is well-suited to its national conditions. This system should address the root cause of the contradictions arising from the inadequate supply of adjudication for specific cases. It is recommended to review and categorize past cases with high rates of appeals and retrials, identifying them as special cases. For these cases, a limited third-instance final adjudication system should be implemented, where the first and second instances focus on fact-finding and the third instance on legal adjudication. Once a case is adjudicated in the third instance, parties should not be allowed to apply for retrial.

Regional heterogeneity of agricultural carbon emission reduction potential in China

Shiqi Hou,Mingjie Chen,Sijie Tao,Peijia Li,Yanqiu He 대한환경공학회 2024 Environmental Engineering Research Vol.29 No.4

Agriculture, a critical industry highly susceptible to climate change, requires thorough analysis of its carbon reduction potential and priority exploration to advance towards green and sustainable development. Therefore, this study employs a variable coefficient panel model to examine the regional heterogeneity of influencing factors. It also uses a PSO-BP neural network model to simulate changes in Chinas agricultural carbon intensity and total emissions under three distinct scenarios. The findings revealed that (1) under the baseline scenario and aggressive scenario, most Chinese provinces and cities can achieve a 30% reduction in agricultural carbon intensity by 2030, and the advanced economic development in the eastern coastal regions positions them favorably for achieving peak carbon emissions. (2) Economic interventions are the main driving force for most Chinese provinces and cities to achieve their agricultural carbon intensity reduction targets, followed by technological interventions and agricultural population adjustment. (3) Eight provinces and cities can be used as emission reduction benchmarks, while Xinjiang, Inner Mongolia, and Henan are challenging points in attaining national emission reduction targets.

중국 신탁형 자산유동화에 대한 법적 연구

이선화 ( Li Xianhua ),도시기 ( Tao Shiqi ) 단국대학교 법학연구소 2021 법학논총 Vol.45 No.2

자산유동화는 효과적인 융자도구로서 중국의 신속한 경제발전 요구에 부응하였을 뿐만 아니라 중국 자본시장의 운영에 적극적인 역할을 일으켰다. 이론적으로 볼 때 자산유동화는 회사형, 계약형, 조합형의 형태로 나누어지나, 중국의 회사법과동업기업법의 규정상의 제한으로 중국에서 사실상 신탁형 자산유동화가 보편적으로 이용되고 있다. 현재까지 중국의 자산유동화에 대한 연구는 경제학적 측면에서 많이 다루어지고 법적인 연구는 상대적으로 부족하며, “실천이 우선이고 법적 대응이 지연되는 상황이라고 볼 수 있다.”본 고에서는 현재 중국의 자산유동화와 관련한 입법상황을 정리한 기초 상에서 중국 신탁형 자산유동화법제의 문제점과 개선방안에 대하여 살펴보고자 한다. 첫째, 중국 자산유동화의 법적 규정에서 특수목적기구인 적격수탁자의 범위를 지속적으로 확대할 필요가 있다. 신탁형자산유동화업무를 운영할 수 있는 기구에 관하여 중국 신탁법상으로는 비교적 느슨한 규정을 하고 있지만, 중국의 금융감독기구인 은행보험감독위원회 및 증권감독위원회의 규정에 따르면 자산유동화업무에 대하여 비교적 높은 진입조건과 엄격한 인가절차를 두고 있으므로 이러한 규정들을 개정할 필요가 있다고 본다. 둘째, 현재 중국의 신탁형 자산유동화는 통일적인 등기제도를 두고 있지 않다. 또한 신탁법에 따르면 신탁의 대하여 성립요건주의를 취하고 있는데, 이에 따라 자산유동화실무 중에서 많은 문제점이 제기되고 있다. 따라서 외국의 입법례를 참조하여 대항요건주의 등기제도를 마련하고 입법을 통하여 신탁 등기기관·등기사항에 관하여 명확히 규정하고 등기기준·등기절차 등을 구체화 할 필요가 있다. 셋째, 현재 중국은 금융분야 대하여 분업감독관리를 실시하고 있는데 통합적인 금융감독기관과 금융감독입법이 공포되기 전까지는 중국 국무원에서 자산유동화의 감독관리에 관한 행정법규를 공포하여 은행보험감독위원회, 증권감독위원회의 감독권한을 조율하여 자산유동화에 대한 감독관리규정의 일치성을 확보할 필요가 있다고 본다. As a new financing tool, asset securitization has largely solved the strong demand for capital in China’s sustained and rapid economic development and improved the operational efficiency of the capital market. Theoretically, there are company-type, trust-type and partnership-type asset securitization models. However, due to the limitations of China’s corporate legal system and partnership legal system, trust-type asset securitization models are mostly adopted in practice. At present, most of the researches on trust asset securitization focus on economics, research on financial market and economic development, the research on legal system is relatively weak, and the legislative level of legal basis for guiding and standardizing asset securitization is not high. As a result, some problems have also arisen in practice. Generally speaking, it is in a situation of “practice first, law lags”. On the premise of combing the existing legislative system, this paper discusses the problems existing in the legal system of trust asset securitization and suggestions for improvement as the entry point. First of all, for the problem that the scope of qualified trustees of special purpose trust trustees is narrow, the CBRC should simplify the conditions and procedures for trust and investment companies to apply for the qualification of trust trustees for specific purposes, and continue to expand the scope of qualified trustees through legislation to allow fund management companies, insurance asset management companies and other institutions to engage in trust asset management business. Secondly, regarding the trust registration system in trust asset securitization, trust registration antagonism should be gradually adopted through legislation, the organs and matters of trust registration should be clarified through legislation, and the procedural issues of registration, such as review standards and process specifications, should be stipulated through the formulation of supporting laws and regulations. Finally, regarding the problems existing in the separate supervision of asset securitization in China, before the establishment of a unified financial supervision institution or the promulgation of financial integration legislation, the State Council should formulate administrative regulations to clearly stipulate the responsibilities, authorities and scope of supervision of different supervision departments. Let the existing regulatory authorities, such as the central bank, the China Insurance Regulatory Commission and the Securities Regulatory Commission, be independent of each other, coordinate and cooperate with each other, and give full play to their regulatory functions.

Unconventional Flatband Line States in Photonic Lieb Lattices

Xia, Shiqi,Ramachandran, Ajith,Xia, Shiqiang,Li, Denghui,Liu, Xiuying,Tang, Liqin,Hu, Yi,Song, Daohong,Xu, Jingjun,Leykam, Daniel,Flach, Sergej,Chen, Zhigang American Physical Society 2018 Physical review letters Vol.121 No.26

Humidity and Temperature Response Characteristics of Optical Fiber Dislocation Fusion Sensor Coated with Graphene Quantum Dots

Dai Lin Li,Xiao Dan Yu,Ning Wang,Wenting Liu,Shiqi Liu,Liang Xu,Dong Fang,Huapeng Yu 한국광학회 2023 Current Optics and Photonics Vol.7 No.5

An optical fiber dislocation fusion humidity sensor coated with graphene quantum dots is investigated. A Mach-Zehnder interferometer is fabricated with three dislocated single-mode fibers with graphene quantum dots coating humidity-sensitive materials. Humidity response experiments showed a good linear response and high sensitivity with easy fabrication and low-cost materials. From 22% to 98% RH, the humidity response sensitivity of the sensor is 0.24 dB/% RH, with 0.9825 linearity. To investigate the cross-response of humidity and temperature, temperature response experiments are conducted. From30 ℃ to 70 ℃, the results showed 0.02 dB/℃ sensitivity and 0.9824 linearity. The humidity responseexperimental curve is compared with the temperature experimental curve. The big difference between humidity sensitivity and temperature sensitivity is very helpful to solve the cross-response of humidity and temperature. The influence of temperature fluctuations in humidity measurements is not obvious.

Understanding of Teaching Strategies on Quadratic Functions in Chinese Mathematics Classrooms

Huang Xingfeng,Li Shiqi,An Shuhua 한국수학교육학회 2012 수학교육연구 Vol.16 No.3

What strategies are used to help students understand quadratic functions in mathematics classroom? In specific, how does Chinese teacher highlight a connection between algebraic representation and graphic representation? From October to November 2009, an experienced teacher classroom was observed. It was found that when students started learning a new type of quadratic function in lessons, the teacher used two different teaching strategies for their learning: (1) Eliciting students to plot the graphs of quadratic functions with pointwise approaches, and then construct the function image in their minds with global approaches; and (2) presenting a specific mathematical problem, or introducing conception to elicit students to conjecture, and then encouraging them to verify it with appoint approaches.

Preparation and characterization of Cu2FeSnS4 thin films for solar cells via a co-electrodeposition method

Jicheng Zhou,Shiqi Yu,Xiaowei Guo,Liang Wu,Hongjiang Li 한국물리학회 2019 Current Applied Physics Vol.19 No.2

Quaternary stannite semiconductor Cu2FeSnS4 (CFTS), which is an ideal material for solar photovoltaic cells, has attracted widespread attention. CFTS crystals have been successfully synthesized by the co-electrochemical deposition method. The structure, morphology, and composition of as-synthesized samples were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), respectively. From the results, it was found that the properties of the sample can be improved by tuning the Cu2+ concentration in the electrolyte, and the best sample was obtained with the Cu2+ concentration of 0.01 M. For the best sample, the CFTS thin films have single phase and good crystallinity with even particle size. By the addition of ascorbic acid, an effective way has been found to enhance the Fe content in the sample, and the reason for the Fe-poor phenomenon has also been explored.