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缅甸2011年以来的对华策略:对冲还是平衡?

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南亚研究 2024年第3期 125-154,159,160页

作者：刘务宋丹丹云南财经大学印度洋地区研究中心云南财经大学马克思主义学院

2011年以来,缅甸充分利用其重要的地缘政治小国身份在新的地缘政治格局中不断调整与大国和邻国的关系.本文在就平衡与对冲策略进行概念界定和比较的基础上,从策略目标、策略表现、形态倾向及对冲强度四个维度就2011年以来缅甸对华策略... 详细信息

2011年以来,缅甸充分利用其重要的地缘政治小国身份在新的地缘政治格局中不断调整与大国和邻国的关系.本文在就平衡与对冲策略进行概念界定和比较的基础上,从策略目标、策略表现、形态倾向及对冲强度四个维度就2011年以来缅甸对华策略选择进行分析并发现,只用对冲或平衡策略来解释该时期缅甸的对华政策并不全面.同时,在大国竞争、地缘政治、国家内部脆弱性及中立主义外交传统等因素的共同作用下,2011年以来缅甸历届政府的对华政策均有所调整,呈现对冲与平衡双重策略周期性摇摆的特征.吴登盛政府和民盟执政时期的缅甸对华政策波动较大,策略选择分别表现为对冲主导下的平衡和平衡主导下的对冲.2021年军方接管国家权力后,缅甸国家管理委员会面临着对外关系严重恶化的局面,策略选择主要表现为对冲与平衡有限兼顾的双重策略.

关键词：缅甸外交对冲平衡外交中缅关系

俯卧位联合抚触对鼻塞持续气道正压通气早产儿喂养不耐受的影响

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中华现代护理杂志 2015年第15期21卷 1776-1780页

作者：曹雪宏汪盈余海英项旦丹温州医科大学附属第二医院新生儿科 325000

目的：探讨俯卧位联合抚触对鼻塞持续气道正压通气（ NCPAP）的早产儿喂养不耐受的影响。方法选择2013年1—12月温州医科大学附属第二医院新生儿重症监护室（ NICU）收治的早产儿134例，按单盲随机化分组对照原则，采用随机数字法分为4... 详细信息

目的：探讨俯卧位联合抚触对鼻塞持续气道正压通气（ NCPAP）的早产儿喂养不耐受的影响。方法选择2013年1—12月温州医科大学附属第二医院新生儿重症监护室（ NICU）收治的早产儿134例，按单盲随机化分组对照原则，采用随机数字法分为4组进行观察：仰卧位组（33例）、俯卧位组（34例）、仰卧位联合抚触组（32例）、俯卧位联合抚触组（35例）。4组患儿均予NCPAP以及相关护理，比较4组喂养效果。结果对4组喂养不耐受程度进行比较，俯卧位联合抚触组呕吐、腹胀、胃潴留发生率较其他组少，差异有统计学意义（P〈0.05）。4组患儿的NCPAP时间、住院天数、鼻胃管留置时间、恢复出生体质量时间、达全肠道营养时间均存在差异，其中俯卧位联合抚触时间最短，差异有统计学意义（P〈0.05）。结论俯卧位联合抚触能增强早产儿胃肠道功能，改善喂养不耐受，减少患儿的机械通气时间和住院时间。

关键词：早产儿喂养不耐受俯卧位抚触鼻塞持续气道正压通气

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大学生校园就餐存在的问题及破解之策

科教导刊 2019年第22期 165-167页

作者：张明娟向丹丹汪琛玉朱碧凡湖北师范大学计算机与信息工程学院

在当今校园里,外卖已经成为部分大学生不可或缺的一部分,使得学校食堂的竞争力受到很大的冲击。为此,我们通过对黄石某高校的学生发放调查问卷的方式进行调查,对比分析外卖与食堂存在的优缺点,得出影响学生就餐方式的因素,并为高校食堂... 详细信息

在当今校园里,外卖已经成为部分大学生不可或缺的一部分,使得学校食堂的竞争力受到很大的冲击。为此,我们通过对黄石某高校的学生发放调查问卷的方式进行调查,对比分析外卖与食堂存在的优缺点,得出影响学生就餐方式的因素,并为高校食堂管理模式的改善提出建议,从而实现建设平安校园,满足大学生个性化需求的双赢。

关键词：校园外卖学生食堂大学生

中国式现代化对国际政治传播基石的撬动和框架的旋转

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青海社会科学 2024年第1期 11-19页

作者：荆学民洪丹丹中国传媒大学政治传播研究所中国传媒大学政府与公共事务学院

中国式现代化具有深厚的政治底蕴,是新中国之中国道路、中国旗帜、中国力量的政治总结和政治表达。国际政治传播是以国家为政治共同体即传播主体的国家间的政治信息的流通过程。资本主义登上历史舞台以来,以美国为首的西方资本主义国家... 详细信息

中国式现代化具有深厚的政治底蕴,是新中国之中国道路、中国旗帜、中国力量的政治总结和政治表达。国际政治传播是以国家为政治共同体即传播主体的国家间的政治信息的流通过程。资本主义登上历史舞台以来,以美国为首的西方资本主义国家最大限度地使用先进的传播技术,通过国际政治传播把世界搞得乌烟瘴气。“发达”“中心”“帝国”“霸权”与“落后”“边缘”“殖民”二者所构成的“中心—边缘”关系、“强—弱”关系、“主—从”关系、“传—受”关系、“说—听”关系横亘和盘桓在国际政治传播领域。现在,这种框架的不合理性愈加凸显。中国式现代化,因其厚重而根本的政治底蕴和展示出来的强大政治底气,对国际政治传播发生深刻影响:对国际政治传播领域中的霸凌行径说“不”,撬动国际政治传播的不平等的“基石”,旋转其“中心—边缘”“居高—临下”倾斜的框架。当然,中国式现代化是“以中国看世界”与“以世界看中国”的统一,它既不把中国看扁成世界的“边缘”,也不把世界缩小成中国的“天下”,而是立足人类,胸怀天下。

关键词：中国式现代化政治底蕴国际政治传播 “中心—边缘”

Study on Detection of Antibiotic Contents in Water around Landfill Sites

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Agricultural Biotechnology 2024年第2期13卷 33-37页

作者： Sha FENG dandan LIU Juan LUO Qing LI Tao MO Zheng LIU Xiaonan ZOU Guangzhou GRG Metrology&Test(Hunan)Co. Ltd.Changsha 410007China Anhua Administration for Market Regulation Yiyang 413500China Guizhou Engineering Vocational College Tongren 565200China

[Objectives] An ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was established for simultaneous determination of 26 antibiotics in the water around landfills. [Methods] After an HLB solid-phase extraction column was activated, and a water sample, which was adjusted with phosphoric acid to a pH of (2±0.5) and added with 500 mg of disodium EDTA, was loaded, and 5 ml of water and 20% methanol water was added for washing. Next, 10 ml of elution solution was added for elution, and the collected eluate was evaporated under reduced pressure at 40 ℃ to near dryness, and 1 ml of reconstitution solution was added to a constant volume. An ACQUITY UPLC BEH C18 (100 mm×2.1 mm, 2.6 μm) chromatographic column was adopted for LC separation by gradient elution with 0.1% formic acid aqueous solution-acetonitrile as the mobile phase. For MS detection, the MRM mode was adopted for collection, and the positive and negative ion modes were switched for simultaneous determination, and the internal standard method was used for quantification. [Results] The correlation coefficient R2 was greater than 0.99 in the linear range of each target substance. The limits of detection ranged from 0.15 to 3.00 ng/L, and the limits of quantitation were between 0.80 and 10.00 ng/L, and the recoveries ranged from 77.9% to 104.85%. [Conclusions] The method has high sensitivity, good accuracy and strong practical value.

关键词： Landfill Antibiotics Ultra high performance liquid chromatography-tandem mass spectrometry

Comprehensive Overview of Populus simonii Research in the Recent Years

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Open Journal of Ecology 2024年第5期14卷 419-434页

作者： dandan Zhang Faujiah Nurhasanah Ritonga Tuya Siqin Runxian Song Zicheng Zhang Mingwei Tang Peilin Sun Wa Gao Heilongjiang Institute of Atomic Energy Harbin China Graduate School Padjadjaran University Bandung Indonesia Key Laboratory of Molecular Epigenetics of the Ministry of Education Northeast Normal University Changchun China

As an important ecological tree species in northern China, Populus simonii plays a crucial role in maintaining ecological balance and promoting environmental sustainability. The academic community has conducted a series of in-depth studies on this species, covering key areas such as genomics, survival mechanisms, and genetic breeding. Through the analysis of the genomic structure and function of P. simonii, we have not only revealed the molecular basis for its adaptation to harsh environments but also identified key genes that promote its growth and resistance to pests and diseases. Furthermore, exploring the survival mechanisms of P. simonii has deepened our understanding of its stress resistance traits, including how it effectively copes with abiotic stresses such as drought, salinization, and heavy metal pollution. In genetic breeding, significant progress has been made through the application of modern biotechnology, improving the growth rate and wood quality of P. simonii and enhancing its environmental adaptability and disease resistance. These research findings have not only enriched our knowledge of the biological characteristics of P. simonii but also provided a solid scientific foundation for its application in ecological restoration, forestry production, and environmental management.

关键词： Breeding Ecological Restoration Genomics Populus simonii Resistance Mechanisms

Design and optimization of purification process of sinomenine hydrochloride

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Chinese Journal of Chemical Engineering 2023年第3期55卷 63-72页

作者： dandan Ren Shanshan xiang Yuwen Yan Ruiying Kong Xingchu Gong Pharmaceutical Informatics Institute College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China Innovation Centerin Zhejiang University State Key Laboratory of Component-Based Chinese MedicineHangzhou 310058China Jinhua Institute of Zhejiang University Jinhua 321016China

Sinomenine hydrochloride is generally produced from Caulis Sinomenii. At present, the purification process in industrial production suffers from large amount of solid waste, high solvent toxicity, and low sinomenine hydrochloride yield. In this study, a new purification process for sinomenine hydrochloride was proposed by using the extract obtained from acid extraction of Caulis Sinomenii as the starting *** process included the following steps: alkalization, extraction, water washing, acid–water stripping,drying, and crystallization. 1-Heptanol was used as the extractant. The distribution coefficients of sinomenine and sinomenine hydrochloride in 1-heptanol–water system were 27.4 and 0.0167, *** dissociation constants of sinomenine hydrochloride were 8.27 and 11.24, respectively. Process parameters of the new purification process were optimized with experimental design. The extractant1-heptanol and sinomenine hydrochloride in the crystallization mother solution can be recycled in the new process. The purity of the obtained sinomenine hydrochloride crystals exceeded 85%, and the yield was about 70%. Compared with current industrial processes, safer extractant, less solid waste, and higher sinomenine hydrochloride yield can be achieved using the new purification process of sinomenine hydrochloride provided in this study.

关键词： Sinomenine hydrochloride Process optimization Extraction Crystallization 1-Heptanol

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计及煤耗率的尖峰电价优化模型及灵敏度分析

系统工程理论与实践 2024年第7期44卷 2260-2272页

作者：喻小宝董真余郑丹丹邓思维上海电力大学经济与管理学院上海200090 中国电建集团贵阳勘测设计研究院有限公司规划研究院贵阳550081

尖峰电价(critical peak pricing, CPP)是通过需求侧管理实现发电侧节能减排的重要手段.现有主流电价优化模型忽略了CPP对发电供给侧的影响,对尖峰日与非尖峰日时终端用电行为的差异性分析也存在不足.本文通过研究CPP对供电侧机组运行... 详细信息

尖峰电价(critical peak pricing, CPP)是通过需求侧管理实现发电侧节能减排的重要手段.现有主流电价优化模型忽略了CPP对发电供给侧的影响,对尖峰日与非尖峰日时终端用电行为的差异性分析也存在不足.本文通过研究CPP对供电侧机组运行的影响机制,挖掘终端用电行为的差异性,设计了针对不同时期的用电需求响应模型,综合考虑发电侧供电煤耗和终端用户满意度,构建CPP多目标优化模型,采用NSGA-Ⅱ遗传算法进行求解.基于3类场景分析用户需求响应模型参数的取值、终端满意度约束、电价费率限制三类指标对CPP定价、负荷改善情况以及机组煤耗减少量的灵敏性,验证了模型的有效性.结果显示:所提电价优化模型效果较好,并且用户响应斜率、终端满意度、电价费率限制对CPP定价、负荷改善情况以及机组煤耗减少量的影响较大.

关键词：尖峰电价供电煤耗电价费率灵敏度分析

Celastrol promotes apoptosis of breast cancer MDA-MB-231 cells by targeting HSDL2

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Acupuncture and Herbal Medicine 2024年第1期4卷 92-101页

作者： Li Liu Yanqing Liu Shujie Zhang Junzhe Zhang Yuqing Meng dandan Liu Liwei Gu Ying Zhang Liting Xu Ziyue Zhang Minghong Zhao Yinkwan Wong Qixin Wang Yongping Zhu Jigang Wang College of Pharmacy Gannan Medical UniversityGanzhouChina State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina Department of Pharmacological Sciences Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore

Objective:Celastrol is a pentacyclic triterpenoid extracted from the traditional Chinese medicinal herb,Tripterygium *** study aims to provide a scientific basis for the rational development and use of celastrol in breast ***:A quantitative chemical biology approach was used to investigate the protein targets and molecular mechanisms of celastrol in breast cancer ***:Low-concentration celastrol exerted an anti-tumor effect by directly binding to hydroxysteroid dehydrogenase-like 2(HSDL2)and inhibiting its ***,the expression of the pro-apoptotic protein,Bcl-2-associated X(BaX),increased,the level of the anti-apoptotic protein,B-cell lymphoma-2(Bcl-2),decreased,and the rate of apoptosis *** the transfection of cells with si-HSDL2,the apoptosis rate was similar to that observed after the administration of ***,apoptosis was reversed by the overexpression of ***,our mass spectrometry(MS)data indicated a relationship between HSDL2 and the mitogen-activated protein kinase(MAPK)signaling *** also found that the expression of HSDL2 was directly related to the degree of extracellular signal-regulated kinase(ERK)***:Celastrol may promote apoptosis by suppressing the HSDL2/MAPK/ERK signaling pathway.

关键词： Activity-based protein profiling Apoptosis Celastrol HSDL2