检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

英国城市化进程的阶段性借鉴

城市发展研究 2013年第8期20卷 24-28页

作者：李亚丽国际关系学院英文系

人类已进入城市化的新阶段,全球70亿人口中超过半数生活在城市里。英国作为世界上率先实现城市化的国家,拥有250余年的城市化实践。英国城市走过了集群化、郊区化、逆城市化、城乡一体化的道路,英国城市化经历了自发蔓延、先放任后治理... 详细信息

人类已进入城市化的新阶段,全球70亿人口中超过半数生活在城市里。英国作为世界上率先实现城市化的国家,拥有250余年的城市化实践。英国城市走过了集群化、郊区化、逆城市化、城乡一体化的道路,英国城市化经历了自发蔓延、先放任后治理、法制管理、规划先行、城乡一体的进程,为包括中国在内的城市化高速发展的新兴国家,提供了研究城市化发展进程及其内在规律的启示。通过文献搜集、比较研究、案例分析等研究方法,总结英国城市化各阶段特征,详列英国应对"城市病"的具体举措,尤其是英国目前通过城市化缩小城乡差别,普及公共服务的经验,以资借鉴。

关键词：英国城市化郊区化逆城市化城乡一体化

Simultaneous microwave characterization of wafer-level optoelectronic transceiver chips based on photonic sampling and mapping

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2024年第2期67卷 337-338页

作者： Yutong HE Xinhai ZOU Ying XU Zhihui li Naidi CUI Junbo FENG yali ZHANG Zhiyao ZHANG Shangjian ZHANG Yong liU Ninghua ZHU Research Center for Microwave Photonics State Key Laboratory of Electronic Thin Films and Integrated DevicesSchool of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China Chongqing United Microelectronics Center (CUMEC) Xiongan Institute of Innovation Chinese Academy of Sciences

Photonic integrated circuits(PICs) promise future parallelism growths of high-performance communication, computation, and offer unprecedented bandwidth scalability with reduced power consumption as a viable replacement for an electrical wire with an optoelectronic transceiver consisting of a transmitter and a receiver integrated on the same wafer.

关键词：

Effects of probiotic Bacillus as a substitute for antibiotics on antioxidant capacity and intestinal autophagy of piglets

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Effects of probiotic Bacillus as a substitute for antibiotic...

Rosa roxburghii tratt juice ameliorated lung fibrosis by inhibiting inflammatory infiltration and epithelial-mesenchymal transition

中国畜牧兽医学会动物微生态学分会第五届第十三次全国学术研讨会

作者： Yang Wang Yanping Wu Baikui Wang Xuefang Cao Aikun Fu yali li Weifen li Key Laboratory of Molecular Animal Nutrition and Feed Sciences College of Animal ScienceZhejiang University

Introduction China is the largest antibiotics producer and consumer in the world and large amount of antibiotics were applied in livestock ***,the use of antibiotics in feed is poorly *** are live microorganisms that,when administrated in adequate amounts,confer a health benefit on the *** studies showed that probiotics have positive effects on pig health,including

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Rosa roxburghii tratt juice ameliorated lung fibrosis by inh...

Association between Exposure of Rare Earth Elements and Outcomes of In Vitro Fertilization-Embryo Transfer in Beijing

健康中国·烹饪营养·产业创新——2019健康中国与食品营养产业发展论坛暨四川省营养学会、四川省食品科学技术学会学术年会

作者： liqun Wang Sha li yali li Qianyu Zhang li Tian Yuanle Deng Wenya Yin Tinghong Ye West China School of Public Health and Healthy Food Evaluation Research Center and West China Fourth Hospital Sichuan University State Key Laboratory of Biotherapy Sichuan University

Background:Pulmonary fibrosis (PF) is a clinical manifestation of chronic lung injury to the end *** to the deterioration of the environment and the accelerated of aging population,pulmonary

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第8期37卷 876-886页

作者： Yutong Wang Jing li Shirong Xu Shengli lin Zhenchen Hou linlin Wang yali Huang Yue Sun Wei Guo Lailai Yan Ying Wang Chan Tian State Key Laboratory of Female Fertility Promotion Center for Reproductive MedicineDepartment of Obstetrics and Gynecology Peking University Third HospitalBeijing 100191China Department of Medical Genetics Peking UniversityBeijing 100191China National Clinical Research Center for Obstetrics and Gynecology Peking University Third HospitalBeijing 100191China Key Laboratory of Assisted Reproduction(Peking University) Ministry of EducationBeijing 100191China Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology Beijing 100191China Central Laboratory of School of Public Health Peking UniversityBeijing 100191China School of Basic Medical Sciences Peking UniversityBeijing 100191China

Objective The study aimed to investigate the impact of rare earth elements(REEs)exposure on pregnancy outcomes of in vitro fertilization-embryo transfer(IVF-ET)by analyzing samples from *** A total of 141 couples were *** and follicular fluid from the wives and semen plasma from the husbands,were analyzed for REEs using inductively coupled plasma mass spectrometry(ICP-MS).Spearman's correlation coefficients and the Mann–Whitney U test were used to assess correlations and compare REE concentrations among three types of samples,*** models were utilized to estimate the individual REE effect on IVF-ET outcomes,while BKMR and WQS models explored the mixture of REE interaction effects on IVF-ET *** Higher La concentration in semen(median 0.089 ng/mL,P=0.03)was associated with a lower fertilization ***,this effect was not observed after artificial selection intervention through intracytoplasmic sperm injection(ICSI)(P=0.27).In semen,the REEs mixture did not exhibit any significant association with clinical *** Our study revealed a potential association between high La exposure in semen and a decline in fertilization rate,but not clinical pregnancy *** is the first to report REEs concentrations in follicular fluid with La,Ce,Pr,and Nd found at significantly lower concentrations than in serum,suggesting that these four REEs may not accumulate in the female reproductive ***,at the current exposure levels,mixed REEs exposure did not exhibit reproductive toxicity.

关键词： Rare earth elements In vitro fertilization Pregnancy outcomes Mixture exposure analysis

The Epidemiological Characteristics of Mpox Cases-China,2023

在线全文

学校读者我要写书评

暂无评论

China CDC weekly 2024年第26期6卷 619-623页

作者： Ruiqi Ren Chao li Wenqing Bai yali Wang Dan li Fan Ding Niu Yan Qi Wang Nijuan Xiang lianmei Jin Lei Zhou Wenling Wang Fan Lyu Peilong li Dapeng Zhang Yan li Quanyi Wang Qun li Guoqing Shi National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases Chinese Center for Disease Control and PreventionBeijingChina Chinese Center for Disease Control and Prevention BeijingChina National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina National Center for AIDS/STD Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina Guangdong Provincial Center for Disease Control and Prevention Guangzhou CityGuangdong ProvinceChina Beijing Municipal Center for Disease Prevention and Control BeijingChina

Summary What is already known about this topic?Since May 2022,a global outbreak of mpox has emerged in more than 100 non-endemic *** of December 2023,over 90,000 cases had been *** outbreak has predominantly affected men who have sex with men(MSM),with sexual contact identified as the principal mode of *** is added by this report?Since June 2023,China has faced an occurrence of mpox,predominantly affecting the MSM *** 90%of those affected reported engaging in homosexual behavior within 21 days prior to symptom onset,a trend that aligns with the global outbreak *** prompt identification of cases,diligent tracing of close contacts,and the implementation of appropriate management strategies have successfully mitigated the spread of mpox virus in *** are the implications for public health practice?We propose that mpox is transmitted locally within *** from our experiences in controlling the virus spread,it is crucial to investigate and formulate effective surveillance and educational ***,we must encourage high-risk populations to promptly seek medical care upon the onset of symptoms.

关键词： prompt Drawing spread

SOliTON SOLUTIONS TO AN EQUATION IN 2+1 DIMENSIONS

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Annals of Differential Equations 2012年第2期28卷 220-225页

作者： yali Shen, Xiaoxia li (Dept. of Math., Yuncheng University, Yuncheng 044000, Shanxi)

This paper considers a 2+1 dimensional equation. A bilinear form for the equation and its 3-soliton solutions are obtained by the Hirota method. The N-soliton solution is given in the form of pfaffian. At the same tim... 详细信息

关键词： soliton solutions Hirota bilinear method pfaffian

资产证券化风险管控——基于次贷危机案例研究

在线全文

学校读者我要写书评

暂无评论

西南金融 2019年第5期 12-20页

作者：李雅丽郑州航空工业管理学院河南郑州450015

本文以2007年前美国次级抵押贷款证券化业务为研究对象,以风险因素——风险事件——损失为主要内容进行研究,认为资产证券化的最大风险因素在于信息不透明,这不仅缘起于该业务本身的复杂性,也在于评级机构未曾提供更多的正确信息;同时... 详细信息

本文以2007年前美国次级抵押贷款证券化业务为研究对象,以风险因素——风险事件——损失为主要内容进行研究,认为资产证券化的最大风险因素在于信息不透明,这不仅缘起于该业务本身的复杂性,也在于评级机构未曾提供更多的正确信息;同时证券化各环节激励机制的缺失以及监管套利机会的存在,加大了信息不透明造成的逆向选择和道德风险。在信息高度不透明的环境下,与证券化业务相关的金融市场信心非常脆弱,任何风吹草动都有可能造成市场恐慌,进而出现交易流动性枯竭和融资流动性枯竭,这分别是金融危机前雷曼兄弟和北岩银行遭遇到的风险事件,这些事件最终导致了全球金融市场的巨大损失。本文还对我国当前证券化市场存在的风险因素进行了分析,最后就如何管控我国资产证券化业务风险给出了相应的政策建议。

关键词：资产证券化次贷危机风险管控监管套利流动性风险系统性风险信息不对称信息披露信用评级宏观审慎监管微观审慎监管货币政策

Thermal conductivity enhancement of polyethylene glycol/expanded vermiculite shape-stabilized composite phase change materials with silver nanowire for thermal energy storage

在线全文

学校读者我要写书评

暂无评论

Thermal conductivity enhancement of polyethylene glycol/expa...