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

光周期不参与长爪沙鼠的能量调节

中国科学：生命科学 2017年第5期47卷 1090-1098页

作者：姚蔚王德华张学英中国科学院动物研究所农业虫害鼠害综合治理研究国家重点实验室北京100101 安徽大学健康科学研究院合肥230601 中国科学院大学生命科学学院北京100049

光周期是引起季节性适应的最直接信号,大部分小型哺乳动物面对光周期信号变化表现出能量平衡的适应性改变.这种由光周期信号引发的、黑视素和褪黑素介导的能量调节对于小型哺乳动物维持最优适合度是至关重要的.本研究以分布在内蒙草原... 详细信息

光周期是引起季节性适应的最直接信号,大部分小型哺乳动物面对光周期信号变化表现出能量平衡的适应性改变.这种由光周期信号引发的、黑视素和褪黑素介导的能量调节对于小型哺乳动物维持最优适合度是至关重要的.本研究以分布在内蒙草原的长爪沙鼠(Meriones unguiulatus)为研究对象,研究了光周期诱导的能量调节.健康成年长爪沙鼠在长光(LD,16L:8D)或短光(SD,8L:16D)下驯化10周,或者先在短光下6周再转到长光下继续驯化4周(SL).发现在整个实验过程中,3组动物的体重和干物质摄入均没有显著差异.较年轻动物可能对光周期更敏感,因此将亚成体长爪沙鼠分别在LD或SD下驯化8周,检测能量平衡的变化.短光驯化并不改变体重、干物质摄入、静止代谢率、非颤抖性产热以及褐色脂肪组织中解耦联蛋白1的表达.为了进一步理解这种光不敏感性的可能机制,测定了视网膜中黑视素含量以及血清褪黑素浓度.与本课题组的预测一致,黑视素含量以及血清褪黑素浓度并不受光周期影响.这些结果表明,与大部分小型哺乳动物不同,长爪沙鼠表现出一种特殊模式,即面对光周期变化并不改变能量平衡.不变的黑视素含量和褪黑素浓度可能介导长爪沙鼠能量平衡的光不敏感性.

关键词：长爪沙鼠光周期能量平衡黑视素褪黑素

同方期刊数据库

A breakthrough of printable mesoscopic perovskite solar cells

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2025年第1期 307-308页

作者： Zhiyi yao Zhijun Ning School of Physical Science and Technology Shanghai Tech University

High-performance solar cells based on low.cost w.t coating methods are the much-anticipated technology for the next generation of photovoltaics. Perovskite solar cells (PSCs) provide a fascinating choice because their...

关键词：

同方期刊数据库

Highly conductive and stable iodine doped argyrodite electrolyte for all-solid-state lithium batteries

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 50-58页

作者： Gaozhan Liu Jing Zhang Jing Yang Jinghui Chen Xingyue Xiao Xiayin yao Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Lithium argyrodites w.th high ionic conductivity and low.cost are considered as one of the most prospective solid electrolytes for all-solid-state lithium ***,the poor chemical stability and compatibility w.th lithium metal limit their ***,Li5.4PS4.4Cl1.4I0.2solid electrolyte w.th high ionic conductivity of 11.49 m S cm-1and improved chemical stability is synthesized by iodine *** ultra-thin Li5.4PS4.4Cl1.4I0.2membrane w.th thickness of 10μm can be obtained by w.t coating process,exhibiting a high ionic conductivity of 2.09 mS cm-1and low.areal resistance of 1.17Ω***,iodine doping could in-situ form LiI at the lithium/electrolyte interface and improve the critical current density of Li5.4PS4.4Cl1.6from 0.8 to 1.35 mA *** resultant LiCoO2/Li5.4PS4.4Cl1.4I0.2/Li battery show. excellent cycling stability at 1 C,w.th a reversible specific capacity of 110.1 mA h g-1and a retention of 80.5% after 1000 *** addition,the assembled LiCoO2/Li5.4PS4.4Cl1.4I0.2membrane/Li pouch cell delivers an initial discharge capacity of 110.4 mA h g-1and 80.5% capacity retention after 100 cycles.

关键词： Argyrodite electrolytes Iodine doping Ionic conductivity Stability All-solid-state lithium battery

Glycolytic dysregulation in Alzheimer's disease:unveiling new.avenues for understanding pathogenesis and improving therapy

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第8期20卷 2264-2278页

作者： You w. Lijie Yang w.nrong Jiang Xinyuan Zhang Zhaohui yao Department of Geriatrics Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

Alzheimer's disease poses a significant global health challenge ow.ng to the progressive cognitive decline of patients and absence of curative *** current therapeutic strategies,primarily based on cholinesterase inhibitors and N-methyl-Daspartate receptor antagonists,offer limited symptomatic relief w.thout halting disease progression,highlighting an urgent need for novel research directions that address the key mechanisms underlying Alzheimer's *** studies have provided insights into the critical role of glycolysis,a fundamental energy metabolism pathw.y in the brain,in the pathogenesis of Alzheimer's *** in glycolytic processes w.thin neurons and glial cells,including microglia,astrocytes,and oligodendrocytes,have been identified as significant contributors to the pathological landscape of Alzheimer's *** changes impact neuronal health and function,thus offering promising targets for therapeutic *** purpose of this review.is to consolidate current know.edge on the modifications in glycolysis associated w.th Alzheimer's disease and explore the mechanisms by w.ich these abnormalities contribute to disease onset and *** focus on the pathw.ys through w.ich glycolytic dysfunction influences Alzheimer's disease pathology should provide insights into potential therapeutic targets and strategies that pave the w.y for groundbreaking treatments,emphasizing the importance of understanding metabolic processes in the quest for clarification and management of Alzheimer's disease.

关键词： Alzheimer’s disease glial cells glycolysis neuronal metabolism pathogenesis therapeutic targets

The gut-eye axis:from brain neurodegenerative diseases to age-related macular degeneration

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第10期20卷 2741-2757页

作者： Qianzi Jin Suyu w.ng Yujia yao Qin Jiang Keran Li Department of Ophthalmology The Affiliated Eye Hospital of Nanjing Medical UniversityNanjingJiangsu ProvinceChina The Fourth School of Clinical Medicine Nanjing Medical UniversityNanjingJiangsu ProvinceChina

Age-related macular degeneration is a serious neurodegenerative disease of the retina that significantly impacts ***,the specific pathogenesis remains unclear,and effective early treatment options are consequently *** microbiome is defined as a large ecosystem of microorganisms living w.thin and coexisting w.th a *** intestinal microbiome undergoes dynamic changes ow.ng to age,diet,genetics,and other *** dysregulation of the intestinal flora can disrupt the microecological balance,resulting in immunological and metabolic dysfunction in the host,and affecting the development of many *** recent decades,significant evidence has indicated that the intestinal flora also influences systems outside of the digestive tract,including the ***,several studies have demonstrated the critical role of the gut-brain axis in the development of brain neurodegenerative diseases,including Alzheimer’s disease and Parkinson’s ***,the role of the“gut-eye axis”has been confirmed to play a role in the pathogenesis of many ocular ***,age-related macular degeneration and many brain neurodegenerative diseases have been show. to share several risk factors and to exhibit comparable *** such,the intestinal flora may play an important role in age-related macular *** the above context,the present review.aims to clarify the gut-brain and gut-eye connections,assess the effect of intestinal flora and metabolites on age-related macular degeneration,and identify potential diagnostic markers and therapeutic ***,direct research on the role of intestinal flora in age-related macular degeneration is still relatively limited,w.ile studies focusing solely on intestinal flora are insufficient to fully elucidate its functional role in age-related macular ***-on-a-chip technology has show. promise in clarifying the gut-eye interactions,w.ile integrating analysis of the inte

关键词： age-related macular degeneration biological agents blinding eye disease dietary nutrition fecal microbial transplantation gut-eye axis intestinal flora metabolite microecology neurodegenerative disease

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao Yu Yingjie Zhou yao Lin Ying w. Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO w.re designed and synthesized using a facile tw.-step *** resulting ZnO/BiVO_(4)composite catalysts have show. remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40w.%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along w.th good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,w.ich can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst w.th broad potential application in the field of environmental w.ter pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang w. Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun Yi yao Liu Yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have show. that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. How.ver, most of them undergo incomplete reconstruction w.th limited thickness of reconstruction layer, leading to low.component utilization and arduous exploration of real catalytic mechanism. Herein, w. identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow.phytic acid（PA） cross-linked CoFe-based complex nanoboxes w.th porous nanow.lls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low.overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together w.th theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The w.rk provides new.insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

Boosting Oxygen Evolution Reaction Performance on NiFe‑Based Catalysts Through d‑Orbital Hybridization

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 281-292页

作者： Xing w.ng w.i Pi Sheng Hu Haifeng Bao Na yao w.i Luo State Key Laboratory of New.Textile Materials and Advanced Processing Technology Key Laboratory of New Textile Materials and Applications of Hubei ProvinceSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Anion-exchange membrane w.ter electrolyzers(AEMw.s)for green hydrogen production have received intensive attention due to their feasibility of using earth-abundant NiFe-based *** introducing a third metal into NiFe-based catalysts to construct asymmetrical M-NiFe units,the d-orbital and electronic structures can be adjusted,w.ich is an important strategy to achieve sufficient oxygen evolution reaction(OER)performance in ***,the ternary NiFeM(M:La,Mo)catalysts featured w.th distinct M-NiFe units and varying d-orbitals are reported in this *** and theoretical calculation results reveal that the doping of La leads to optimized hybridization betw.en d orbital in NiFeM and 2p in oxygen,resulting in enhanced adsorption strength of oxygen intermediates,and reduced rate-determining step energy barrier,w.ich is responsible for the enhanced OER *** critically,the obtained NiFeLa catalyst only requires 1.58 V to reach 1 A cm^(−2) in an anion exchange membrane electrolyzer and demonstrates excellent long-term stability of up to 600 h.

关键词： NiFe-based catalysts d-orbital coupling Oxygen evolution reaction Anion exchange membrane electrolyzer

Photo‑Energized MoS_(2)/CNT Cathode for High‑Performance Li–CO_(2)Batteries in a w.de‑Temperature Range

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 160-175页

作者： Tingsong Hu w.nyi Lian Kang Hu Qiuju Li Xueliang Cui Tengyu yao Laifa Shen Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

Li–CO_(2) batteries are considered promising energy storage systems in extreme environments such as Mars;how.ver,severe performance degradation w.ll occur at a subzero temperature ow.ing to the sluggish reaction ***,a photo-energized strategy adopting sustainable solar energy in w.de w.rking temperature range Li–CO_(2) battery w.s achieved w.th a binder-free MoS_(2)/carbon nanotube(CNT)photo-electrode as *** unique layered structure and excellent photoelectric properties of MoS_(2) facilitate the abundant generation and rapid transfer of photo-excited carriers,w.ich accelerate the CO_(2) reduction and Li_(2)CO_(3) decomposition upon *** illuminated battery at room temperature exhibited high discharge voltage of 2.95 V and mitigated charge voltage of 3.27 V,attaining superior energy efficiency of 90.2%and excellent cycling stability of over 120 *** at an extremely low.temperature of−30℃,the battery w.th same electrolyte can still deliver a small polarization of 0.45 V by the photoelectric and photothermal synergistic mechanism of MoS_(2)/CNT *** w.rk demonstrates the promising potential of the photo-energized w.de w.rking temperature range Li–CO_(2) battery in addressing the obstacle of charge overpotential and energy efficiency.

关键词： Li-CO_(2)batteries Photo-energized w.de operation-temperature Kinetics MoS_(2)