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Elite capture,the“follow-up checks”policy,and the targeted poverty alleviation program:Evidence from rural western China

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Journal of Integrative Agriculture 2021年第4期20卷 880-890页

作者： cheng xiao-yu WANG Jian-ying Kevin Z.CHEN Institute of Agricultural Economics and Development Chinese Academy of Agricultural SciencesBeijing 100081P.R.China School of Economics Zhejiang University of Finance&EconomicsHangzhou 310018P.R.China China Academy for Rural Development Zhejiang UniversityHangzhou 310058P.R.China International Food Policy Research Institute WashingtonD.C.20005USA

Decentralized methods for targeting poverty are widely adopted in developing countries to improve the performance of various poverty alleviation programs.A common challenge for implementing successful decentralized targeting is the existence of elite *** has recently implemented a nationwide decentralized poverty targeting program,the targeted poverty alleviation(TPA)policy,to achieve the national goal of eliminating absolute poverty by the end of *** the largest decentralized poverty targeting program in the world,TPA's successful implementation was believed to be threatened by elite capture in some earlier *** 2015,a targeting correction mechanism,called"follow-up checks"policy,has been *** the"follow-up checks"policy,the elites and other ineligible households who receive benefits under TPA were removed from the *** paper investigates the elite capture phenomenon in TPA using village census data from a poverty-stricken county in 2017-two years after implementing the"follow-up checks"*** find no evidence of elite capture in *** elites are unlikely to become beneficiaries or receive more benefits than *** results contradict earlier findings that reported elite capture in *** argue that the reason is the accountability emphasized by the central government in the"follow-up checks"*** findings imply that having proper accountability is critical for improving targeting performance by global antipoverty initiatives.

关键词： elite capture decentralized poverty targeting targeted poverty alleviation the"follow-up checks"policy accountability

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Hypersingular parameterized Marcinkiewicz integrals with variable kernels on Sobolev and Hardy-Sobolev spaces

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Applied Mathematics(A Journal of Chinese Universities) 2008年第4期23卷 420-430页

作者： CHEN Jie-cheng yu xiao ZHANG Yan-dan WANG Hui Department of Mathematics Zhejiang University Hangzhou 310027 China

Let α≥ 0 and 0 〈 ρ ≤ n/2, the boundedness of hypersingular parameterized Marcinkiewicz integrals μΩ,α^ρ with variable kernels on Sobolev spaces Lα^ρ and HardySobolev spaces Hα^ρ is established.

关键词： parameterized Marcinkiewicz integral variable kernel Hardy-Sobolev space L^α-Dini condition

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程晓昱治疗冠心病稳定型心绞痛临证经验

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江西中医药大学学报 2018年第5期30卷 26-28页

作者：周小芳程晓昱安徽中医药大学合肥230038 安徽中医药大学第一附属医院合肥230038

冠心病稳定型心绞痛是21世纪严重威胁人们身心健康的疾病之一。程晓昱根据中医学整体观念中的五脏一体观的特点,认为肝失疏泄是导致冠状动脉发生病变的原因。冠心病稳定型心绞痛的病机为本虚标实之证,本虚多为气虚、阳虚,标实多责之病... 详细信息

冠心病稳定型心绞痛是21世纪严重威胁人们身心健康的疾病之一。程晓昱根据中医学整体观念中的五脏一体观的特点,认为肝失疏泄是导致冠状动脉发生病变的原因。冠心病稳定型心绞痛的病机为本虚标实之证,本虚多为气虚、阳虚,标实多责之病久入络,气、痰、瘀交阻。程晓昱在临床上主要用理气药、活血化瘀药、安神药治疗心绞痛,认为本病的治疗应将病因病机、脏腑与舌诊、脉诊相结合,运用中医学辨证论治的特点随证化裁,方能疗效突出。

关键词：冠心病稳定型心绞痛气滞血瘀经验程晓昱

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TPX2 promotes migration and invasion of human breast cancer cells

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Asian Pacific Journal of Tropical Medicine 2015年第12期8卷 1033-1037页

作者： Yong Yang Da-Peng Li Na Shen xiao-cheng yu Jie-Bao Li Qi Song Jia-Heng Zhang Department of Breast and Thyroid Surgery Wuhan No.1 Hospital Department of Head and Neck Surgery Thyroid and Neck OncologyTianjin Medical University Cancer Institute and Hospital Department of Breast and Thyroid Surgery Union Hospital Affiliated To Huazhong University of Science and Technology

Objective:To investigate the expression of targeting protein for Xenopus kinesin-like protein 2(TPX2) in breast cancer tissue and to explore its role in proliferation,migration and invasion of breast cancer ***:The mRNA and protein expressions of TPX2 in breast cancer tissue and cell lines were assessed by quantitative RT-PCR and Western *** effect of TPX2 with RNA interference on proliferation,invasion and migration of breast cancer cells was observed by MTT and Transwell ***:Both mRNA and protein expressions of TPX2 were upregulated in breast cancer tissues compared to tumor-adjacent ***2 expression was also upregulated in breast cancer cell lines,and the TPX2 interfered by small interfering RNA could inhibit the proliferation,invasion and migration of breast cancer cells by inhibiting matrix metalloproteinase-2 and matrix ***:Significantly upregulated TPX2 expression is observed in breast cancer tissue and cells,and contributes to promote the proliferation,migration and invasion of breast cancer cells.

关键词： Breast cancer TPX2 Proliferation Migration Invasio

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室温下表面极化效应对量子点带隙和吸收峰波长的影响

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物理学报 2017年第13期66卷 232-239页

作者：程成王国栋程潇羽浙江工业大学应用物理系杭州310023 Department of Chemistry Temple University

对于离散在本底介质中的纳米晶体量子点,考虑表面极化效应,通过像电荷法建立极化势能项,应用微扰法求解激子的薛定谔方程,得到了与本底介电系数直接相关的量子点带隙解析表达式.对不同本底中尺寸依赖的量子点带隙、第一吸收峰波长、第... 详细信息

对于离散在本底介质中的纳米晶体量子点,考虑表面极化效应,通过像电荷法建立极化势能项,应用微扰法求解激子的薛定谔方程,得到了与本底介电系数直接相关的量子点带隙解析表达式.对不同本底中尺寸依赖的量子点带隙、第一吸收峰波长、第一吸收峰波长移动进行的计算表明,表面极化效应对量子点的带隙和第一吸收峰波长有明显的影响.随着本底介电系数的增大,量子点的带隙减小,第一吸收峰波长红移.量子点在不同本底中的第一吸收峰波长移动会在某个固定粒径达到最大值,最大值对应的粒径取决于量子点种类.

关键词：量子点表面极化效应带隙吸收峰波长

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Synchronous left atrial myxoma and adenosquamous lung carcinoma

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Chinese Medical Journal 2013年第15期126卷 2992-2993页

作者： LIU Hong-cheng CHEN xiao-feng yu yu-ming JIANG Ge-ning Tongji Univ Dept Thorac Surg Shanghai Pulm Hosp Sch Med Shanghai 200433 Peoples R China

Atrial myxomas account for 40%-50% of primary cardiac tumors and as such are the most common primary heart tumors. Because prolapsing myxomas cause the intermittent obstruction of the valvular outflow tract during diastole, the signs and symptoms of left atrial myxoma resemble mitral stenosis. Myxoma may lead to systemic thromboembolic events from tumor fragmentation. In addition, lung carcinoma is a common tumor with highly heterogeneous malignancies.

关键词： left atrial myxoma lung carcinoma synchronous occurrence simultaneous resection

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AM50镁合金压铸件致密性与压铸工艺研究

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铸造 2008年第7期57卷 661-664页

作者：程晓宇熊守美先进成形制造教育部重点试验室清华大学机械工程系北京100084 陕西国防工业职业技术学院陕西西安710302

压铸件的致密性是评价其质量的重要指标,通常用密度来衡量。以AM50压铸镁合金为研究对象,采用多因素分析法设计了阶梯块试样和压铸工艺参数。通过压铸试验和压铸件的密度测定,分析了压铸工艺参数对铸件密度的影响规律,获得致密度高的压... 详细信息

压铸件的致密性是评价其质量的重要指标,通常用密度来衡量。以AM50压铸镁合金为研究对象,采用多因素分析法设计了阶梯块试样和压铸工艺参数。通过压铸试验和压铸件的密度测定,分析了压铸工艺参数对铸件密度的影响规律,获得致密度高的压铸件工艺参数为:浇注温度650℃、模具温度180℃、铸造压力44MPa、低速速度0.25m/s、高速速度3m/s、高速位置230mm、增压位置280mm、增压时间20ms、料饼厚度30mm。研究还表明,不同厚度阶梯块理想的压铸工艺参数不同。

关键词：镁合金压铸 AM50合金致密性密度

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慢压射过程与AM50压铸件卷气的研究

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铸造 2008年第11期57卷 1151-1154页

作者：程晓宇熊守美清华大学机械工程系北京100084 陕西国防工业职业技术学院陕西西安710302

设定了慢压射工艺参数和临界速度优化方案,测定了不同慢压射条件下AM50压铸件的密度和力学性能,研究了不同匀速慢压射条件和优化方案情况下铸件的卷气,讨论了慢压射工艺与铸件强度的关系。结果表明,慢压射速度对铸件卷气有较大影响,并... 详细信息

设定了慢压射工艺参数和临界速度优化方案,测定了不同慢压射条件下AM50压铸件的密度和力学性能,研究了不同匀速慢压射条件和优化方案情况下铸件的卷气,讨论了慢压射工艺与铸件强度的关系。结果表明,慢压射速度对铸件卷气有较大影响,并存在临界慢压射速度使压室卷气减少;在优化低速工艺方案条件下,选择合理的减速位置是关键因素,可以进一步减少卷气,使压铸件具有更高的密度和强度。

关键词： AM50 临界速度密度慢压射过程

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Resistance of Cement-based Grouting Materials with Nano- SiO_(2) Emulsion to Chloride Ion Penetration

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 114-119页

作者： LI Shuiping cheng Jian WEI Chao yuAN Bin yu chengxiao College of Architectural Science and Engineering Yangzhou UniversityYangzhou 225127China

The chloride penetration resistance of cement-based grout materials was improved by nano-silica *** of mixtures containing different nano-silica particles or emulsions were exposed in sodium chloride solutions of specific concentrations with different test *** properties of the mixes were assessed in terms of weight loss and compressive strength.X-ray diffraction(XRD)and scanning electron microscopy(SEM)of mixes were performed to analysis the phase evolution and *** results demonstrated that the introduction of nano-SiO_(2) emulsion significantly decreased the compressive strength loss and calcium hydroxide(CH)crystal content of hydration production,and then enhanced the resistance of cement-based grouting materials to chloride ion *** improvement derives from the filling and pozzolanic effects of nano-SiO_(2) particles,which were incorporated via an emulsion and attributed to a well dispersion in grouting matrix.

关键词： grouting materials nano-SiO_(2)emulsion chloride ion penetration,weight loss strength loss

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Ideal Bi‑Based Hybrid Anode Material for Ultrafast Charging of Sodium‑Ion Batteries at Extremely Low Temperatures

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Nano-Micro Letters 2025年第3期17卷 152-167页

作者： Jie Bai Jian Hui Jia yu Wang Chun cheng Yang Qing Jiang Key Laboratory of Automobile Materials(Jilin University) Ministry of EducationSchool of Materials Science and EngineeringJilin UniversityChangchun 130022People’s Republic of China

Sodium-ion batteries have emerged as competitive substitutes for low-temperature applications due to severe capacity loss and safety concerns of lithium-ion batteries at−20°C or ***,the key capability of ultrafast charging at ultralow temperature for SIBs is rarely ***,a hybrid of Bi nanoparticles embedded in carbon nanorods is demonstrated as an ideal material to address this issue,which is synthesized via a high temperature shock *** a hybrid shows an unprecedented rate performance(237.9 mAh g^(−1)at 2 A g^(−1))at−60℃,outperforming all reported SIB anode *** with a Na_(3)V_(2)(PO_(4))_(3)cathode,the energy density of the full cell can reach to 181.9 Wh kg^(−1)at−40°*** on this work,a novel strategy of high-rate activation is proposed to enhance performances of Bi-based materials in cryogenic conditions by creating new active sites for interfacial reaction under large current.

关键词： Bi nanoparticles High temperature shock High-rate activation Ultrafast charging Low-temperature sodium-ion batteries

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