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Thiacalix[4]arene 1,2,3-triazole-polyethylene glycol polymers:Synthesis and dye adsorption properties

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Chinese Chemical Letters 2015年第9期26卷 1091-1095页

作者： shu-yun zhu Hong-Yu Guo Fa-Fu Yang Zu-Sheng Wang College of Chemistry and Chemical Engineering Fujian Normal University Fujian Key Laboratory of Polymer Materials Fujian Normal University

By reacting alkynylthiacalix[4]arenes with polyethylene glycol azido compounds,a series of novel thiacalix[4]arene 1,2,3-triazole-polyethylene glycol netty polymers were conveniently prepared in good *** structures and morphologies were studied by ^1H NMR,*** elemental analysis and SEM *** average,approximately 28-31 thiacalixarene units exist in each polymeric *** novel polymers possess excellent adsorption ability for both cationic and anionic *** saturation adsorption capacity for Congo red reached 1.3-1.4 mmol/*** exhibit high and stable adsorption ability in the scope of pH 5-9,and maintain good properties in five cycles.

关键词： Thiacalixarene Synthesis Polymer Dye adsorption

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中国南方手工造纸的田野调查与行业生态构建

东南文化 2017年第4期 6-13页

作者：汤书昆朱赟中国科技大学人文与社会科学学院手工纸研究所安徽合肥230026 中国科学技术大学科学传播研究与发展中心安徽合肥230026

21世纪初,中国手工造纸虽然品类仍比较丰富,但分布密度和广泛度已大为萎缩。从已完成传统手工造纸状况田野调查的南方中国来看,许多地区的传统手工造纸生态圈已成为"孤岛",面临着传统技艺无法融入现代人生活和消费需求、造纸技术传承后... 详细信息

21世纪初,中国手工造纸虽然品类仍比较丰富,但分布密度和广泛度已大为萎缩。从已完成传统手工造纸状况田野调查的南方中国来看,许多地区的传统手工造纸生态圈已成为"孤岛",面临着传统技艺无法融入现代人生活和消费需求、造纸技术传承后续无人的困境。传统造纸行业的生态恢复需要融入新的科技力量,积极适应社会审美、消费新需求,并促使设计师人群深度进入传统工艺行业。目前来看,设计师与经典工坊和工匠长期深入的"事业型"合作,是促进传统造纸工艺生态恢复的较好模式。

关键词：传统技艺手工造纸南方中国生态调查生态恢复

归芎消异方对卵巢子宫内膜异位症患者术后复发及妊娠情况的影响

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复旦学报（医学版） 2017年第1期44卷 42-46页

作者：黄书慧闵淑云朱芝玲复旦大学附属妇产科医院中西医结合科上海200011 上海市普陀区妇婴保健院妇产科上海200062

目的观察归芎消异方对卵巢子宫内膜异位囊肿患者保守性手术后复发及妊娠情况的影响。方法采用前瞻性非随机对照研究方法,将116例卵巢子宫内膜异位囊肿术后患者分为治疗组(51例)和对照组(65例)。治疗组采用归芎消异方口服治疗,对照组采... 详细信息

目的观察归芎消异方对卵巢子宫内膜异位囊肿患者保守性手术后复发及妊娠情况的影响。方法采用前瞻性非随机对照研究方法,将116例卵巢子宫内膜异位囊肿术后患者分为治疗组(51例)和对照组(65例)。治疗组采用归芎消异方口服治疗,对照组采用达菲林肌肉注射治疗,疗程为3~6个月。采用电话及门诊随访的方式随访至术后2年。比较两组患者的术后复发及妊娠情况。结果随访过程中,治疗组和对照组的复发率分别为9.8%和10.8%,平均复发时间分别为(9.60±5.16)个月和(10.57±2.94)个月,两组的复发情况比较差异无统计学意义。治疗组和对照组中有妊娠意愿者的妊娠成功率分别为70.3%和45.7%,两组比较差异有统计学意义(P<0.05)。结论归芎消异方可能有防止卵巢子宫内膜异位囊肿患者术后的复发、提高患者的妊娠率的作用。

关键词：子宫内膜异位症归芎消异方妊娠率复发率

Catalytic atroposelective synthesis of indolyl quinazolinones bearing N-N/C-C diaxes

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Science China Chemistry 2025年

作者： Ning-Yi Wang shuo Gao zhu-Di shu Bei-Bei Cheng Chun Ma Yu-Chen Zhang Feng Shi Research Center of Chiral Functional Heterocycles School of Chemistry and Materials Science Jiangsu Normal University School of Petrochemical Engineering Changzhou University School of Chemistry and Chemical Engineering Henan Normal University

The first catalytic atroposelective synthesis of indole derivatives bearing N-N/C-C diaxes has been established by the strategy of de novo ring formation. By this strategy, various indolyl quinazolinones bearing vicinal N-N/C-C diaxes were synthesized in high yields with overall good diastereoselectivities and excellent enantioselectivities via chiral phosphoric acid-catalyzed onepot asymmetric formal (5+1) cycloaddition/oxidation reaction. Moreover, such indolyl quinazolinones bearing vicinal N-N/CC diaxes have good configurational stability and could be converted into new chiral ligands with applications in asymmetric catalysis. Therefore, this work not only offered a new member for the family of diaxial atropisomers, but also provided a powerful strategy for catalytic asymmetric synthesis of atropisomers bearing N-N/C-C diaxes.

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细胞色素CYP3A4~* 1G基因多态性与肾移植患者术后发生钙调神经蛋白抑制剂慢性肾毒性的相关性

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中国临床药理学杂志 2017年第5期33卷 401-403页

作者：保泽庆赵树进朱云松石磊肇庆医学高等专科学校药理教研室广东肇庆526020 解放军广州军区广州总医院药学部广州510010

目的研究细胞色素CYP3A4*1G基因多态性与钙调神经蛋白抑制剂(CNI)的慢性肾毒性的相关性。方法纳入200例肾移植后一直用钙调神经蛋白抑制剂进行抗排斥并出现慢性肾毒性的中国人种患者(试验组)和200例肾移植肾移植后一直使用钙调神经蛋白... 详细信息

目的研究细胞色素CYP3A4*1G基因多态性与钙调神经蛋白抑制剂(CNI)的慢性肾毒性的相关性。方法纳入200例肾移植后一直用钙调神经蛋白抑制剂进行抗排斥并出现慢性肾毒性的中国人种患者(试验组)和200例肾移植肾移植后一直使用钙调神经蛋白抑制剂进行抗排斥且至少12个月后未出现慢性肾毒性的中国人种患者(对照组)。用聚合酶链反应—限制性内切酶片段长度多态性技术分别检测2组患者的CYP3A4*1G的突变位点基因型。基因型及等位基因患慢性肾毒性的风险率以优势比(OR)与95%可信区间(95%CI)表示。结果在试验组中,CYP3A4基因型*1/*1+*1/*1G(慢代谢)和*1G/*1G(快代谢)分别占85.5%(171/200)和14.5%(29/200);在对照组中,CYP3A4基因型*1/*1+*1/*1G和*1G/*1G分别占94.5%(189/200)和5.5%(11/200)。通过Logistic回归分析显示,CYP3A4*1G/*1G是CNI引起慢性肾毒性的危险因素(P<0.05,OR=2.914,95%CI=1.41~6.01)。结论 CYP3A4*1G/*1G可能增加肾移植术后CNI致慢性肾毒性的发生率。

关键词：慢性肾毒性钙调神经蛋白抑制剂 CYP3A4*1G 基因多态性

Trinuclear gold-catalyzed site-selective alkylation of peptides

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Science China Chemistry 2025年第1期 249-256页

作者： Qing-yun Fang Chengyihan Gu Yinghan Chen Wencheng Yan Yong Liang Weipeng Li Chengjian zhu Jie Han Jin Xie State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials Chemistry and Biomedicine Innovation Center (Chem BIC) School of Chemistry and Chemical Engineering Nanjing University Green Catalysis Center College of Chemistry Zhengzhou University State Key Laboratory of Natural Medicines China Pharmaceutical University

Selective modification of peptides has always been a challenging issue. The selective alkylation of peptides can alter the biological activity and physical properties of molecules, and it has gained significant research interest. We herein disclose an intriguing gold-catalyzed alkylation of peptides using bench-stable unactivated alkyl bromides under photoredox catalysis. A wide range of structurally diverse primary, secondary and tertiary alkyl bromides serve as effective coupling partners to precisely connect with the α-C(sp3)–H in glycine residue of peptides. This protocol demonstrates an exceptionally broad scope for alkyl halides and excellent tolerance for a wide range of useful functional groups. A series of relay transformations to construct cyclic peptides, to proceed click reaction and to realize peptide fluorescence labeling further enhance its synthetic practicality. In addition, mechanistic studies and density functional theory(DFT) calculations reveal an inner-sphere and subsequent outersphere single electron transfer(SET) mechanism.

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Modification of Maxwell model for conductivity prediction of carbon nanotubes-filled polymer composites with tunneling effect

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 25-36页

作者： Jue zhu Longyuan LI Ningtao zhu Zhejiang Provincial Engineering Research Center for the Safety of Pressure Vessel and Pipeline Key Laboratory of Impact and Safety Engineering (Ningbo University) Ministry of Education School of Engineering Computing and Mathematics University of Plymouth Xi'an Zhanshi Testing & Engineering Co.Ltd.

Carbon nanotubes(CNTs) have garnered great attention in recent years due to their outstanding electrical, thermal, and mechanical properties. The incorporation of small amounts of CNTs in polymers can substantially improve the sensitivity of the polymer's electrical conductivity. This paper presents a modified Maxwell model to evaluate the electrical conductivity of CNTs-filled polymer composites by introducing a transition zone to account for the tunneling effect. In this modified Maxwell model, the CNTs-filled polymer composite is modeled as a three-phase composite, consisting of a matrix(polymer), inclusions(CNTs), and a transition zone(tunneling zone). The effective electrical conductivity(EEC) of the composite is calculated based on the volume fractions and electrical conductivities of the matrix, inclusions, and transition zone. The model's validity is confirmed through the use of available test data, which demonstrates its capability to accurately capture the nonlinear conductivity behavior observed in CNTs-polymer composites. This study offers valuable insights into the design of high-performance conductive polymer nanocomposites, and enhances the understanding of electrical conduction mechanisms in CNT-dispersed polymer composites.

关键词： carbon nanotube (CNT) polymer composite electrical conductivity tunneling Maxwell model O242.2 O441.1

Impacts of the annual cycle of background SST in the tropical Pacific on the phase and amplitude of ENSO

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 12-17页

作者： Song Jiang Congwen zhu Ning Jiang State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina

The dominant annual cycle of sea surface temperature(SST)in the tropical Pacific exhibits an antisymmetric mode,which explains 83.4%total variance,and serves as a background of El Niño-Southern Oscillation(ENSO).However,there is no consensus yet on its anomalous impacts on the phase and amplitude of *** on data during 1982-2022,results show that anomalies of the antisymmetric mode can affect the evolution of ENSO on the interannual scale via Bjerknes feedback,in which the positive(negative)phase of the antisymmetric mode can strengthen El Niño(La Niña)in boreal winter via an earlier(delayed)seasonal cycle transition and larger(smaller)annual *** magnitude of the SST anomalies in the equatorial eastern Pacific can reach more than±0.3◦C,regulated by the changes in the antisymmetric mode based on random sensitivity *** reveal the spatial pattern of the annual cycle associated with the seasonal phase-locking of ENSO evolution and provide new insight into the impact of the annual cycle of background SST on ENSO,which possibly carries important implications for forecasting ENSO.

关键词： Annual cycle SST anomaly Antisymmetric mode ENSO

Satellite remote sensing reveals overwhelming recovery of forest from disturbances in Asia

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 46-51页

作者： Yiying zhu Hesong Wang Anzhi Zhang School of Ecology and Nature Conservation Beijing Forestry UniversityBeijingChina Key Laboratory of Regional Climate and Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Forestry and Landscape Architecture Xinjiang Agricultural UniversityUrumqiChina

Forest ecosystems play key roles in mitigating human-induced climate change through enhanced carbon uptake;however,frequently occurring climate extremes and human activities have considerably threatened the stability of *** the same time,detailed accounts of disturbances and forest responses are not yet well quantified in *** study employed the Breaks For Additive Seasonal and Trend method-an abrupt-change detection method-to analyze the Enhanced Vegetation Index time series in East Asia,South Asia,and Southeast *** approach allowed us to detect forest disturbance and quantify the resilience after *** showed that 20%of forests experienced disturbance with an increasing trend from 2000 to 2022,and Southeast Asian countries were more severely affected by ***,95%of forests had robust resilience and could recover from disturbance within a few *** resilience of forests suffering from greater magnitude of disturbance tended to be stronger than forests with lower disturbance *** summary,this study investigated the resilience of forests across the low and middle latitudes of Asia over the past two *** authors found that most forests exhibited good resilience after disturbance and about two-thirds had recovered to a better state in *** findings of this study underscore the complex relationship between disturbance and resilience,contributing to comprehension of forest resilience through satellite remote sensing.

关键词： Forest ecosystem Enhanced vegetation index Breaks for additive seasonal and trend method Disturbance Resilience