检索结果-南通市图书馆

Near-infrared brain functional characteristics of mild cognitive impairment with sleep disorders

World Journal of Psychiatry 2025年第1期15卷 106-116页

作者： Heng Liao Sha Liao Yu-Jiao Gao Xi Wang Li-Hong Guo Su Zheng Wu Yang Yi-nan dai Sleep Psychosomatic Medicine Center Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Integrated Chinese and Western Medicine Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Orthopaedics Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Rehabilitation Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina

BACKGROUND Mild cognitive impairment(MCI)has a high risk of progression to Alzheimer’s *** disease is often accompanied by sleep disorders,and whether sleep disorders have an effect on brain function in patients with MCI is *** To explore the near-infrared brain function characteristics of MCI with sleep *** A total of 120 patients with MCI(MCI group)and 50 healthy subjects(control group)were *** subjects underwent the functional near-infrared spec-troscopy *** baseline data,Mini-Mental State Examination,Montreal Cognitive Assessment scale,fatigue severity scale(FSS)score,sleep parameter,and oxyhemoglobin(Oxy-Hb)concentration and peak time of functional near-infrared spectroscopy test during the task *** relationship between Oxy-RESULTS Compared with the control group,the FSS score of the MCI group was higher(t=11.310),and the scores of Pittsburgh sleep quality index,sleep time,sleep efficiency,nocturnal sleep disturbance,and daytime dysfunction were higher(Z=-10.518,-10.368,-9.035,-10.661,-10.088).Subjective sleep quality and total sleep time scores were lower(Z=-11.592,-9.924).The sleep efficiency of the MCI group was lower,and the awakening frequency,rem sleep latency period,total sleep time,and oxygen desaturation index were higher(t=5.969,5.829,2.887,3.003,5.937).The Oxy-Hb concentration at T0,T1,and T2 in the MCI group was lower(t=14.940,11.280,5.721),and the peak time was higher(t=18.800,13.350,9.827).In MCI patients,the concentration of Oxy-Hb during T0 was negatively correlated with the scores of Pittsburgh sleep quality index,sleep time,total sleep time,and sleep efficiency(r=-0.611,-0.388,-0.563,-0.356).It was positively correlated with sleep efficiency and total sleep time(r=0.754,0.650),and negatively correlated with oxygen desaturation index(r=-0.561)and FSS score(r=-0.526).All comparisons were P<*** Patients with MCI and sleep disorders have lower near-infrared brain function than norm

关键词： Mild Cognitive impairment Sleep disorders Near-infrared Brain functional Characteristics

来源：

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

空间信息引导的双分支实时语义分割算法

引用

北京航空航天大学学报 2025年第1期51卷 19-29页

作者：侯志强戴楠程敏捷李富成马素刚范九伦西安邮电大学计算机学院西安710121 陕西省网络数据分析与智能处理重点实验室西安710121 西安邮电大学通信与信息工程学院西安710121

针对实时语义分割模型大量缩减参数造成特征空间信息损失,以及特征缺少上下文信息导致分割类别预测不准确的问题,提出一种基于空间信息引导的双分支实时语义分割算法。该算法采用双分支结构分别获取特征的空间信息和语义信息,为更好地... 详细信息

针对实时语义分割模型大量缩减参数造成特征空间信息损失,以及特征缺少上下文信息导致分割类别预测不准确的问题,提出一种基于空间信息引导的双分支实时语义分割算法。该算法采用双分支结构分别获取特征的空间信息和语义信息,为更好地保留空间信息,设计了一种空间引导模块(SGM),同时捕获特征的局部信息和周围上下文信息,并通过通道加权给予重要信息更高的权重,有效弥补了图像高分辨率特征在降采样过程中的信息损失;为进一步强化特征的上下文信息表征能力,设计了池化特征增强模块(PFEM),采用不同尺寸的池化核捕获多尺度特征信息,并采用条状池化核对特征之间的长距离依赖关系进行建模,更好地确定分割区域的类别。在Cityscapes和CamVid数据集上对所提算法进行验证,平均交并比分别达到77.4%和74.0%,检测速度分别达到49.1帧/s和124.5帧/s,在保证实时分割的情况下有效提升了精度,获得了良好的语义分割性能。

关键词：图像处理实时语义分割卷积神经网络空洞卷积上下文信息

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A high-performance adsorbent of 2D Laponite in-situ coated on 3D diatomite for advanced adsorption of cationic dye

引用

Science China(Technological Sciences) 2022年第10期65卷 2304-2316页

作者： dai nan FENG Li ZHAO Li SONG Dan dai XingJian LIU XiaoYing ZHANG YuXin College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Academy of Eco-Environmental Sciences Chongqing 401147China Engineering Research Center for Waste Oil Recovery Technology and Equipment Chongqing Key Lab Catalysis&New Environment MaterialsMinistry of EducationSchool of Environment and ResourcesChongqing Technology and Business UniversityChongqing 400067China

A one-step hydrothermal method was used to synthesize two-dimensional layered Laponite nanosheets(Laponite@diatomite)in situ on the three-dimensional biological template *** cationic dye removal ability of Laponite@diatomite with different diatomite content was studied.X-ray diffraction(XRD),scanning electron microscope(SEM),transmission electron microscope(TEM),Fourier transformed-infrared(FT-IR)spectroscopy,X-ray photoelectron spectroscopy(XPS),and N_(2) adsorption-desorption technology were used to characterize synthetic *** effects of pH,initial concentration,dynamics,and thermodynamics behavior on the adsorption performance were further ***@D-0.1 had the highest adsorption efficiency,and the adsorption rate of methylene blue(MB)solution(450 mg L^(−1))reached 76.7%in the initial 5 *** the time of adsorption equilibrium(1 h),methylene blue adsorption rate reached 86.4%.The adsorption behavior of La@D-0.1 on MB was characterized by Langumuir isotherm and with better fitting to the quasi-second-order kinetic model *** calculating the adsorption process’s thermodynamic parameters,we were able to illustrate that the adsorption process was *** work provides a novel idea for the synthesis of an economical and ideal,cationic dye nano-adsorbent and provides a potential application for the purification of actual dye wastewater.

关键词： Laponite@diatomite composites methylene blue adsorption isotherm thermodynamics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Oligo(p-phenylenevinylene)-rhodium complex as intracellular catalyst for enhancing biosynthesis of polyhydroxybutyrate biomaterials

引用

Science China Chemistry 2021年第1期64卷 143-150页

作者： nan dai Hao Zhao Wen Yu Fengting Lv Libing Liu Shu Wang Bejing National Laboratory for Molecular Sciences Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China College of Chemistry University of Chinese Academy of Sciences.Beijing 100049China

Microbial synthesis utilizes sustainable resources to produce valuable chemicals,as a potential alternative to petroleum-based chemical *** metabolic engineering is an efficient method to enhance the biosynthesis efficacy of microorganisms,it requires complicated biological ***,we report a facile intracellular catalysis system for augmenting the production of bio-based material in *** linking of oligo(p-phenylenevinylene)(OPV)and cyclopentadienyl rhodium(Ⅲ)bipyridine offers intracellular metal catalyst(OPV-Rh).The OPV-Rh complex displayed certain resistance to toxic biomolecules,which guaranteed its catalytic activity in complicated biological *** uptake by Gramnegative bacterium Ralstonia eutropha H16(*** H16),the OPV-Rh complex promotes the transformation of intracellular NADP+to NADPH,which further enhances the biosynthesis of polyhydroxybutyrate(PHB)by this *** work demonstrates that synthetic metal catalyst can be employed for regulating microbial biosynthesis intracellularly.

关键词： microbial synthesis rhodium complex NADPH PHB

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Comparison of efficacy of conbercept,aflibercept,and ranibizumab ophthalmic injection in the treatment of macular edema caused by retinal vein occlusion:a Meta-analysis

引用

International Journal of Ophthalmology(English edition) 2023年第7期16卷 1145-1154页

作者： Qiu Xing Ya-nan dai Xiao-Bo Huang Li Peng Department of Ophthalmology Central South University Xiangya School of Medicine Affiliated Haikou HospitalHaikou 570000Hainan ProvinceChina Department of Ophthalmology the Second Xiangya Hospital of Central South UniversityChangsha 410000Hunan ProvinceChina Department of Ophthalmology the Changsha Central Affiliated HospitalHengyang Medical SchoolUniversity of South ChinaChangsha 410004Hunan ProvinceChina

AIM:To evaluate and compare the anatomical and functional outcomes and negative effects of the three anti-vascular endothelial growth factor(VEGF)drugs in the treatment of macular edema(ME)due to retinal vein occlusion(RVO)based on the evidence pooled from current clinical trials and observational ***:A systematic literature search was conducted on nine online databases from inception until April 30,*** main endpoints were best corrected visual acuity(BCVA),central macular thickness(CMT),and adverse events(AEs).Cumulative Meta-analysis was conducted to synthesize the outcomes of the *** retrieved data were analyzed using Stata software(version 12.0).RESULTS:A total of 20 studies comprising 1674 eyes met the inclusion criteria to the *** was observed that conbercept and aflibercept had better visual acuity effects compared with ranibizumab at 1mo[weight mean difference(WMD)=-0.03,P=0.001;WMD=-0.05,P=0.019],but the effects were not different from that of ranibizumab at ***,there was not statistically significant dif ference in the propor tion of patients gaining≥15 letters at 12-24mo between aflibercept and ranibizumab[odds ratio(OR)=1.16,P=0.427].Conbercept had higher mean CMT change effects at 1mo(WMD=-14.43,P=0.014)and 6mo(WMD=-35.63,P≤0.001)compared with ***,the mean CMT change effects at 1mo(WMD=-10.14,P=0.170),6mo(WMD=-26.98,P=0.140)and 12-24mo(WMD=-12.34,P=0.071)were comparable among the ***,AEs were not significantly different among the treatments(OR=0.75,P=0.305;OR=1.04,P=0.89).The stability of effect size of mean BCVA and CMT improved with the increase in sample *** and conbercept required fewer injections compared with ***:This is the first study to evaluate the efficacy and AEs of intravitreal administration of conbercept,ranibizumab,and aflibercept in the treatment of *** aflibercept or conbercept results in better mean change in visi

关键词： anti-vascular endothelial growth factor conbercept aflibercept ranibizumab macular edema retinal vein occlusion

来源：

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

Controllable synthesis and photocatalytic activities of rod-shaped mesoporous titanosilicate composites with varied aspect ratios

引用

Chinese Chemical Letters 2014年第6期25卷 962-966页

作者： Feng-Jiao Chen Chang-Wang Shao Min-nan Zhao Zhao-Sheng Bu Yan Zhang Xiao-nan dai Guo-Wei Zhou Key Laboratory of Fine Chemicals in Universities of Shandong School of Chemistry and Pharmaceutical EngineeringQilu University of Technology School of Chemical Engineering and Environment Weifang University of Science and Technology

Rod-shaped mesoporous titanosilicate composites （RMTSs） with controllable aspect ratios （ARs） were fabricated using cetyltrimethylammonium bromide （CTAB） and ammonium hydroxide （NH4OH） at a continuous stirring rate, resulting in ARs ranging from 1 to 5. Slowing the stirring rate or increasing the concentration of CTAB mainly impacted the length growth, whereas NH4OH affected the width growth. Photocatalytic activity studies revealed that the length of RMTSs played a more significant role than the width at lower ARs in their photocatalytic activity.

关键词： Titanosilicate Aspect ratio Growth direction Photocatalytic activity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Stable Magnetic Field on the Phase Transformation of Sr3 Steel

引用

材料热处理学报 2004年第5期25卷 638-640页

作者： WANGYa-nan LIAOdai-qiang WUZhan-jun AnshanUniversityofScienceandTechnology Anshan114044China

The experimental equipment designed by the author was used to carry out quenching treatments on Sr3 steel, with and without magnet it field in different quenching mediums. The effect of steady magnetic field on the phase transformation of Sr3 steel was studied by metallographic microscope and scanning electron microscope. The result shows: the application of magnetic field can obviously increase the volume fraction of ferrite during the austenite to ferrite transformation of Sr3 steel, promote the ferrite grains refining and homogenization, and get the pearlite beam much homogeneously and much compact, when Sr3 steel is quenched in the water.

关键词：稳定磁场 Sr3钢相变淬火

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Preintercalation of Layered γ-Zirconium Phosphate for Preparation of Immobilized Hemoglobin

引用

Chinese Chemical Letters 2002年第8期13卷 801-804页

作者： Li Na GENG Na LI Xiao Fan WEN nan dai Feng Lin ZHAO Ke An LI College of Chemistry and Molecular Engineering Peking UniversityBeijing 100871

Layeredγ-Zirconium phosphate (γ-ZrP) preintercalated with butylamine, tetra (n-butylammonium)hydroxide, dimethylamine respectively, or only ultrasonificated, for preparation of immobilized hemoglobin were investigat... 详细信息

关键词： Zirconium phosphate preintercalation exfoliation hemoglobin immobilization.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Expression of the SET protein in testes of mice at different developmental stages

引用

Asian Journal of Andrology 2014年第5期16卷 689-693,I0006,I0007页

作者： Xiao-nan dai Shan Liu Li Shao Chao Gao Li Gao Jia-Yin Liu Yu-Gui Cui State Key Laboratory of Reproductive Medicine Clinical Center of Reproductive Medicine First Affiliated Hospital Nanjing Medical University Nanjing China

SET is a multifunctional protein involved in regulating many biological processes of the cell cycle. It is also a regulator of steroidogenesis in the ovary. However, the expression of SET protein in testis, and its function, still remains ambiguous. In this study, we observed the expression of SET in the testes of mice at different developmental stages, and have discussed its potential function in regulating spermatogenesis and androgen production. Forty-eight male mice at different developmental stages （1 week old as the infancy group; 4 weeks old as the prepubertal group; 12 weeks old as the adult group; over 12 months old as the ageing group） were used. Cellular location of SET protein in the testes was observed by immuno-histochemistry. Expression levels of Set mRNA and SET protein were analyzed by quantitative polymerase chain reaction and Western blotting. SET protein was expressed in spermatogonial cells and spermatocytes; the highest level was mainly in haploid and tetraploid cells of the prepubertal and adult groups, and Leydig cells of the adult and ageing groups. There was a low expression in Sertoli cells. Expression of Set mRNA in the prepubertal group was significantly higher than that in the adult group （P 〈 0.05）, while expression of SET protein was at the highest level in the adult group （P 〈 0.05）. SET protein is mainly expressed in spermatogonial cells and spermatocytes, and poorly expressed in Sertoli cells, suggesting that it is involved in spermatogenesis. Expression of SET protein in Leydig cells suggests a possible role in steroidogenesis.

关键词： androgen production Leydig cell Sertoli cell SET spermatogenesis

来源：

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

Explore human parsing modality for action recognition

引用

CAAI Transactions on Intelligence Technology 2024年第6期9卷 1623-1633页

作者： Jinfu Liu Runwei Ding Yuhang Wen nan dai Fanyang Meng Fang-Lue Zhang Shen Zhao Mengyuan Liu School of Intelligent Systems Engineering Sun Yat-sen UniversityShenzhenChina Peng Cheng Laboratory ShenzhenChina State Key Laboratory of General Artificial Intelligence Peking UniversityShenzhen Graduate SchoolShenzhenChina Changchun University of Science and Technology ChangchunChina Victoria University of Wellington WellingtonNew Zealand

Multimodal-based action recognition methods have achieved high success using pose and RGB ***,skeletons sequences lack appearance depiction and RGB images suffer irrelevant noise due to modality *** address this,the authors introduce human parsing feature map as a novel modality,since it can selectively retain effective semantic features of the body parts while filtering out most irrelevant *** authors propose a new dual-branch framework called ensemble human parsing and pose network(EPP-Net),which is the first to leverage both skeletons and human parsing modalities for action *** first human pose branch feeds robust skeletons in the graph convolutional network to model pose features,while the second human parsing branch also leverages depictive parsing feature maps to model parsing features via convolutional *** two high-level features will be effectively combined through a late fusion strategy for better action *** experiments on NTU RGB t D and NTU RGB t D 120 benchmarks consistently verify the effectiveness of our proposed EPP-Net,which outperforms the existing action recognition *** code is available at https://***/liujf69/EPP-Net-Action.

关键词： action recognition human parsing human skeletons

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：