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NIR photothermal enhancement to achieve high-efficiency nitrogen reduction to ammonia by polyoxometalates@Fe-polydopamine

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Nano Research 2025年第1期18卷 118-128页

作者： Xiaofei chen Lixin Wu Feng Bai Key Laboratory for Special Functional Materials of Ministry of Education National&Local Joint Engineering Research Center for High-Efficiency Display and Lighting TechnologySchool of Nanoscience and Materials EngineeringHenan UniversityKaifeng 475004China State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China

The development of atmospheric pressure N_(2)reduction to NH_(3)is attracting much attention in green chemistry,yet it is still a challenge to obtain satisfactory activity under mild ***,an efficient near-infrared(NIR)photothermal catalysis reduction of N_(2)constitutes an occurrence is *** or without V-substitute polyoxometalates(POMs)loaded on the surface of Fechelated polydopamine(Fe-PDA)photothermal support through the electrostatic interactions,NIR photothermal catalysts POMs@Fe-PDA are *** induction of“FeV”cofactor facilitates electron transfer between V(V)/V(IV)&Fe(III)/Fe(II)and N_(2),thereby activating N_(2)*** synergy between the catalytic activity of V-POMs and the local NIR photothermal effect of Fe-PDA dramatically enhances N_(2)***,PMo_(10)V_(2)@Fe-PDA exhibits a significantly enhanced NH_(3)production rate of 181.1μmol·LN^(-1)with a turnover frequency of 1006.1 mmol·MN^(-1)·hN^(-1)under 808 nm NIR laser radiation,being the highest values reported at atmospheric *** expect that this work could provide an alternative approach for photothermal catalysis N_(2)reduction under mild conditions.

关键词： polyoxometalate near-infrared photothermal catalysis N_(2)reduction mild condition

我国基层医生社区康复服务能力现状与对策研究

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中国全科医学 2025年第4期28卷 450-456页

作者：练璐王敌陈家应刘武江苏省人民医院南京医科大学第一附属医院江苏省妇幼保健院运营管理处江苏省南京市210029 江苏省人民医院南京医科大学第一附属医院江苏省妇幼保健院组织人事处江苏省南京市210029 南京医科大学康达学院人文与管理学部江苏省连云港市222000 江苏省人民医院南京医科大学第一附属医院江苏省妇幼保健院纪委办公室江苏省南京市210029

背景“康复回社区”是形成合理就医格局的重点要求,也是实现人人享有康复服务的重要策略,但目前我国基层医生的社区康复服务能力与居民日益增长的康复需求仍有差距。目的了解我国基层医生社区康复服务能力的现状、特点与不足,为制定能... 详细信息

背景“康复回社区”是形成合理就医格局的重点要求,也是实现人人享有康复服务的重要策略,但目前我国基层医生的社区康复服务能力与居民日益增长的康复需求仍有差距。目的了解我国基层医生社区康复服务能力的现状、特点与不足,为制定能力提升对策提供科学依据。方法2020年8月采用多阶段分层抽样与典型抽样相结合的方法对中国江苏省、安徽省、河南省、重庆市、甘肃省五地基层医疗卫生机构的医生开展问卷调查,从康复功能评定、康复医疗服务、中医药保健指导、中医理疗四个方面调查基层医生社区康复服务能力现状。结果共回收8374份问卷,接受调查的基层医生中,分别有4697名(56.1%)、6396名(76.4%)、5833名(69.7%)、4834名(57.7%)具备康复功能评定、康复医疗服务、中医药保健指导、中医理疗能力,且农村地区基层医生各项社区康复能力及综合能力具备率均高于城市地区(P<0.05)。不同年龄、学历、执业资格、岗位基层医生的康复医疗服务指导、中医药保健指导、中医理疗能力具备率比较,差异有统计学意义(P<0.05);组内两两比较结果显示,在年龄方面,30岁以下及60岁以上基层医生康复功能评定能力的具备率高于30~<45岁、45~<60岁(P<0.016),45~<60岁医生具备率高于30~<45岁(P<0.016),45岁以下的康复医疗服务指导能力具备率低于45岁以上的基层医生(P<0.016);30岁以下基层医生中医药保健指导、中医理疗能力具备率低于30~<45岁、45~<60岁和60岁以上(P<0.016),30~<45岁医生能力具备率低于45~<60岁和60岁以上(P<0.016),45~<60岁医生具备率低于60岁以上(P<0.016)。在学历方面,高中/中专及以下学历基层医生能力具备率高于大专学历和本科学历(P<0.016),大专学历医生能力具备率高于本科学历(P<0.016)。在执业资格方面,全科医师具备率高于乡村医师和执业(助理)医师(P<0.016),乡村医师具备率高于执业(助理)医师(P<0.016)。在工作岗位方面,中医岗位基层医生中医药保健指导、中医理疗能力具备率高于临床岗位和其他岗位(P<0.016),临床岗位具备率高于其他岗位(P<0.016)。基层医生康复医疗综合能力具备率高于中医康复综合能力(P<0.05)。结论基层医生社区康复服务能力总体不足,中医康复能力较为薄弱。应完善分级康复服务体系建设,促进基层医生康复经验的积累和能力的提升,加强基层医生中医康复与西医现代康复技术联合培养,完善基层康复人才队伍建设,使其能承担起社区康复的责任。

关键词：初级卫生保健基层医生社区康复分层分析城乡地区

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Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi xueying chen Bowen Liu Xuliang Lin xueqing Qiu Yanlin Qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Double Batch for RLWE-Based Leveled Fully Homomorphic Encryption

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Chinese Journal of Electronics 2015年第3期24卷 661-666页

作者： chen Hu HU Yupu lian Zhizhu State Key Laboratory of Integrated Service Networks Xidian University

To further improve the efficiency of Fully homomorphic encryption(FHE), a leveled FHE scheme based on the Ring learning with errors(RLWE) problem is put forward by simultaneously applying both batch techniques available. Our scheme therefore allows double packing many plaintext values into each ciphertext to support single-instruction-multiple-data-type operations, which effectively reduces the ciphertext expansion ratio. An efficient evolutionary method for achieving arbitrary homomorphic permutation operations on a packed ciphertext is also provided by using several given key-switching ***, a few new operations are introduced, with which not only to describe the key switching process in our batch setting clearly, but also to analyze the noise growth conveniently.

关键词： Fully homomorphic encryption Ring learning with errors Batch technique Circular security

The emerging role of nitric oxide in the synaptic dysfunction of vascular dementia

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Neural Regeneration Research 2025年第2期20卷 402-415页

作者： Xiaorong Zhang Zhiying chen Yinyi Xiong Qin Zhou Ling-Qiang Zhu Dan Liu Department of Pathology Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi ProvinceChina Jiujiang Clinical Precision Medicine Research Center JiujiangJiangxi ProvinceChina Center for Cognitive Science and Transdisciplinary Studies Jiujiang UniversityJiangxi ProvinceChina Department of Neurology Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi ProvinceChina Department of Rehabilitation Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi ProvinceChina Department of Pathophysiology School of Basic MedicineTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

With an increase in global aging,the number of people affected by cerebrovascular diseases is also increasing,and the incidence of vascular dementia-closely related to cerebrovascular risk-is increasing at an epidemic ***,few therapeutic options exist that can markedly improve the cognitive impairment and prognosis of vascular dementia *** in Alzheimer’s disease and other neurological disorders,synaptic dysfunction is recognized as the main reason for cognitive *** oxide is one of the ubiquitous gaseous cellular messengers involved in multiple physiological and pathological processes of the central nervous ***,nitric oxide has been implicated in regulating synaptic plasticity and plays an important role in the pathogenesis of vascular *** review introduces in detail the emerging role of nitric oxide in physiological and pathological states of vascular dementia and summarizes the diverse effects of nitric oxide on different aspects of synaptic dysfunction,neuroinflammation,oxidative stress,and blood-brain barrier dysfunction that underlie the progress of vascular ***,we propose that targeting the nitric oxide-sGC-cGMP pathway using certain specific approaches may provide a novel therapeutic strategy for vascular dementia.

关键词： endoplasmic reticulum stress endothelial nitric oxide synthase gene therapy nitric oxide NO-sGC-cGMP pathway synaptic dysfunction vascular dementia

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Trend and causes of neonatal mortality in a level Ⅲ children's hospital in Shanghai: a 15-year retrospective study

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World Journal of Pediatrics 2018年第1期14卷 44-51页

作者： xue-lian Wang Jin Wang Lin Yuan Wen-Jing Shi Yun Cao Chao chen Department of Neonatology Children’s Hospital of FudanUniversity399Wanyuan StreetMinhang DistrictShanghaiChina Present Address:Department ofN eonatology GuangdongGeneral HospitalGuangzhouChina

Background To determine the trend and causes of neonatal mortality in a large level Ⅲ neonatal intensive care unit in Shanghai during a 15-year period. Methods This is a retrospective, single-centered study. All neonates who died during the period from January 1, 1999 to December 31, 2013 at Children's Hospital of Fudan University were included. We extracted relevant clinical information from their medical records, analyzed neonatal mortality rate and the characteristics of these patients, and compared neonatal deaths between different periods and populations. Results Among a total of 50,957 admissions during the study period, there were 929 neonatal deaths. The neonatal mortality rate was 1.82%. Trends in neonatal mortality rate showed an increase in the period from 1.0% in 2003 to 2.2% in 2013. The main causes of neonatal mortality were complications of preterm birth (33.6%), congenital anomalies (21.3%), infections (12.6%), and birth asphyxia (9.1%). The proportions of complications of preterm birth (P < 0.001) and congenital anomalies (P = 0.018) increased yearly, while the proportions of birth asphyxia (P < 0.001) and infections (P < 0.001) decreased. Proportions of deaths caused by birth asphyxia (P = 0.005) and infections (P < 0.001) were both higher in the migrating population than in the permanent residents. Conclusions Neonatal mortality rate increased from 2003 to 2013 in our study. The proportion of preterm infants in neonatal deaths also increased within the same period. Complications of preterm birth were the main cause of neonatal mortality and the percentage increased year by year. Neonates in the migrating population appeared to be at a higher risk of death during the neonatal period compared to those in the permanent residents, and efforts should be made towards improving perinatal care to prevent infections and birth asphyxia in this vulnerable population.

关键词： Birth asphyxia Cause of death Neonatal infection Neonatal mortality Preterm birth

Preparation of freestanding palladium nanosheets modified with gold nanoparticles at edges

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Nano Research 2018年第8期11卷 4142-4148页

作者： Xiangbo Zhang Chao lian Zheng chen chen chen Yadong Li Department of Chemistry Tsinghua University Beijing 100084 China Department of Chemistry School of Science Belling Jiaotong University Belling 100044 China Xiangbo Zhang and Chao lian contributed equally to this work.

Electronic adjustment is one of the most commonly used strategies to improve the catalytic performance of heterogeneous catalysts. We prepared hexagonal ultrathin Pd nanosheets with edges modified by gold nanoparticles （Au@Pd nanosheets） using galvanic replacement method. By virtue of the electronic interactions between the Pd nanosheets and Au nanoparticles, the Au@Pd nanosheets exhibited excellent catalytic performances in the carbonylation of iodobenzene by carbon monoxide. The novel nanocomposites could be applied as model catalysts to explore electronic effects in catalysis.

关键词： palladium gold nanocomposite model catalyst electronic effect

Interaction of western-Pacific tropical cyclones with El Nio diversity

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National Science Review 2018年第6期5卷 803-804页

作者： Dake chen Tao lian State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Lamont-Doherty Earth Observatory of Columbia University

Tropical cyclones (TCs) and El NioSouthern Oscillation (ENSO) are both high-impact phenomena, and their interaction is a subject of great scientific interest and practical importance. It is now widely accepted that ... 详细信息

关键词： El Interaction of western-Pacific tropical cyclones with El Ni o diversity

Rare earth and transitional metal colloidal supercapacitors

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Science China(Technological Sciences) 2015年第11期58卷 1768-1778页

作者： chen KunFeng xue DongFeng State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences

The search of electrode materials with high electrochemical activity is one of key solutions to actualize both high energy density and high power density in a supercapacitor. Recently, we have developed one novel kind of rare earth and transitional metal colloidal supercapacitors, which can deliver higher specific capacitance than electrical double-layer capacitors(EDLC) and traditional pseudocapacitors. The electrode materials in colloidal supercapacitors are in-situ formed electroactive colloids, which were transformed from commercial rare earth and transitional metal salts in alkaline electrolyte by chemical and electrochemical assisted coprecipitation. In these colloidal supercapacitors, multiple-electron Faradaic redox reactions can be utilized, which can deliver ultrahigh specific capacitance often larger than one-electron capacitance. Multiple-valence metal cations used in our designed colloidal supercapacitors mainly include Ce3+, Yb3+, Er3+, Fe3+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Sn2+ and Sn4+. The colloidal supercapacitors can be served as the promising next-generation high performance supercapacitors.

关键词： supercapacitor colloidal electrode electroactive cation rare earth cation transitional metal cation

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