检索结果-南通市图书馆

New cheaper human papilloma virus mass screening strategy reduces cervical cancer incidence in Changsha city:A clinical trial

引用

World Journal of Clinical Oncology 2024年第12期15卷 1491-1500页

作者： yue-e zu Si-Feng Wang Xing-Xing Peng Yong-Chun Wen Xue-Xiang Shen Xiao-Lan Wang Wen-Bo Liao Ding Jia Ji-Yang Liu Xiang-Wen Peng Hunan Provincial Key Laboratory of Regional Hereditary Birth Defects Prevention and Control Changsha Hospital for Maternal&Child Health CareHunan Normal UniversityChangsha 410001Hunan ProvinceChina Changsha Hospital for Maternal&Child Health Care Affiliated Hunan Normal UniversityChangsha 410001Hunan ProvinceChina Department of Administrative Office Hunan Provincial Health CommissionChangsha 410001Hunan ProvinceChina

BACKGROUND Cervical cancer is the second leading cause of death in women worldwide,second only to breast *** 80%of women have been infected with human papillomavirus(HPV)in their *** screening and treatment are effective means of preventing cervical cancer,but due to economic reasons,many parts of the world do not have free screening programs to protect women’s *** To increase HPV cervical cancer screening in Changsha and reduce the incidence of cervical *** Cervical cancer screening included gynecological examination,vaginal secretion examination and HPV high-risk typing *** cytology examination(ThinPrep cytology test)was performed for individuals who test positive for HPV types other than 16 and *** colposcopy examination was performed for HPV16 and 18 positive individuals,as well as for those who were positive for ThinPrep cytology *** the results of vaginal colposcopy examination were abnormal,histopathological examination was *** conducted a cost-benefit analysis after 4 *** From 2019 to 2022,523437 women aged 35-64 years in Changsha city were screened and 73313 were positive,with a 14%positive *** detection rate of precancerous lesions of cervical cancer was 0.6%and the detection rate of cervical cancer was 0.037%.Among 311212 patients who underwent two cancers examinations,the incidence rate was reduced by more than half in the second *** average screening cost per woman was 120 *** average cost of detecting early cases was 10619 RMB,with an early detection cost coefficient of *** Our screening strategy was effective and cost-effective,making it valuable for early diagnosis and treatment of cervical *** is worth promoting in economically limited areas.

关键词： Cervical cancer screening Human papillomavirus ThinPrep cytology test Cost-effective New cheaper screening strategy

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

An efficient Boron Source Activation Strategy for the Low‑Temperature Synthesis of Boron Nitride Nanotubes

引用

Nano-Micro Letters 2025年第1期17卷 548-558页

作者： Ying Wang Kai Zhang Liping Ding Liyun Wu Songfeng e Qian He Nanyang Wang Hui zuo Zhengyang Zhou Feng Ding yue Hu Jin Zhang Yagang Yao National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional Materialsand Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093People’s Republic of China School of electronic Information and Artificial Intelligence Shaanxi University of Science&TechnologyXian 710000People’s Republic of China College of Bioresources Chemical and Materials engineering Shaanxi University of Science&TechnologyXian 710000People’s Republic of China Key Laboratory of Carbon Materials of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325000People’s Republic of China Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhen 518000People’s Republic of China College of Chemical and Molecular engineering Peking UniversityBeijing 100871People’s Republic of China

Lowering the synthesis temperature of boron nitride nanotubes(BNNTs)is crucial for their *** primary reason for adopting a high temperature is to enable the effective activation of highmelting-point solid *** this study,we developed a novel approach for efficiently activating boron by introducing alkali metal compounds into the conventional MgO–B *** approach can be adopted to form various low-melting-point AM–Mg–B–O growth *** growth systems have improved catalytic capability and reactivity even under low-temperature conditions,facilitating the synthesis of BNNTs at temperatures as low as 850℃.In addition,molecular dynamics simulations based on density functional theory theoretically demonstrate that the systems maintain a liquid state at low temperatures and interact with N atoms to form BN *** findings offer novel insights into the design of boron activation and are expected to facilitate research on the low-temperature synthesis of BNNTs.

关键词： Boron nitride nanotubes Low-temperature Boron activation Density functional theory

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

The shifts of precipitation phases and their impacts

引用

Science China earth Sciences 2025年

作者： Xuemei LI Tao CHe Yuanlong TANG Huan'e DUAN Guigang WANG Xu ZHANG Chuanming YANG Jun WU yue ZHANG Lanhai LI Faculty of Geomatics Lanzhou Jiaotong University National-Local Joint engineering Research Center of Technologies and Applications for National Geographic State Monitoring Key Laboratory of Science and Technology in Surveying & Mapping Gansu Province Key Laboratory of Cryospheric Science and Frozen Soil engineering Heihe Remote Sensing Experimental Research StationNorthwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Xinjiang Key Laboratory of Water Cycle and Utilization in Arid Zone Xinjiang Institute of Ecology and Geography Chinese academy of Sciences Tianshan Snow Cover and Avalanche Observation and Research Station of Xinjiang

Precipitation comes in various phases, including rainfall, snowfall, sleet, and hail. Shifts of precipitation phases, as well as changes in precipitation amount, intensity, and frequency, have significant impacts on regional climate, hydrology,ecology, and the energy balance of the land-atmosphere system. Over the past century, certain progress has been achieved in aspects such as the observation, discrimination, transformation, and impact of precipitation phases. Mainly including:since the1980s, studies on the observation, formation mechanism, and prediction of precipitation phases have gradually received greater attention and reached a certain scale. The estimation of different precipitation phases using new detection theories and methods has become a research focus. Avariety of discrimination methods or schemes, such as the potential thickness threshold method of the air layer, the temperature threshold method of the characteristic layer, and the near-surface air temperature threshold method,have emerged one after another. Meanwhile, comparative studies on the discrimination accuracy and applicability assessment of multiple methods or schemes have also been carried out simultaneously. In recent years, the shift of precipitation from solid to liquid (SPSL) in the mid-to-high latitudes of the Northern Hemisphere has become more pronounced due to global warming and human activities. It leads to an increase in rain-on-snow (ROS) events and avalanche disasters, affecting the speed, intensity, and duration of spring snow-melting, accelerating sea ice and glacier melting, releasing carbon from permafrost, altering soil moisture, productivity, and phenological characteristics of ecosystems, and thereby affecting their structures, processes, qualities, and service functions. Although some progress has been made in the study of precipitation phases, there remains considerable research potential in terms of completeness of basic data, reliability of discrimination schemes,

关键词：

来源：

同方期刊数据库评论

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 mesoscale gravity waves on sporadic e simulated by a one-dimensional dynamic model

引用

earth and Planetary Physics 2025年第1期9卷 1-9页

作者： Xu Zhou ZeZhong Li XinAn yue LiBo Liu Key Laboratory of earth and Planetary Physics/Heilongjiang Mohe National Geophysical Observatory/Beijing National Observatory of Space environment Institute of Geology and GeophysicsChinese Academy of Sciences(CAS)Beijing 100029China College of earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China CAS Center for excellence in Comparative Planetology/CAS Key Laboratory of Geospace environment/Mengcheng National Geophysical Observatory University of Science and Technology of ChinaHefei 230026China

In addition to being driven by tidal winds,the sporadic e(es)layers are modulated by gravity waves(GWs),although the effects are not yet comprehensively *** this article,we discuss the effects of mesoscale GWs on the es layers determined by using a newly developed model,MISe-1D(one-dimensional Model of Ionospheric Sporadic e),with low numerical dissipation and high *** by the wind fields resolved by the high-resolution version of the Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension(WACCM-X),the MISe-1D simulation revealed that GWs significantly influence the evolution of the es layer above 100 km but have a very limited effect at lower *** effects of GWs are diverse and complex,generally including the generation of fluctuating wavelike structures on the es layer with frequencies similar to those of the *** mesoscale GWs can also cause increases in the density of es layers,or they can disperse or diffuse the es layers and increase their *** addition,the presence of GWs is a key factor in sustaining the es layers in some cases.

关键词： sporadic e ion tidal layer gravity waves numerical simulation

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

经阴道彩色超声检查联合血清学指标对异位妊娠保守治疗结局的预测

引用

生殖与避孕 2009年第9期29卷 593-597页

作者：蒋学风李瑞满罗新王晓玉祖月娥王文慧杨斌健暨南大学附属第一医院广州510630 湖南长沙市妇幼保健院长沙410007

目的:了解阴道彩色超声波检查(TVCDS)联合血清学指标对异位妊娠保守治疗结局的预测价值。方法:根据TVCDS血流信号联合血清学β-hCG、孕酮(P)建立异位妊娠保守治疗评分表,并以elito评分表为对照,对122例拟行保守治疗的异位妊娠进行评分,... 详细信息

目的:了解阴道彩色超声波检查(TVCDS)联合血清学指标对异位妊娠保守治疗结局的预测价值。方法:根据TVCDS血流信号联合血清学β-hCG、孕酮(P)建立异位妊娠保守治疗评分表,并以elito评分表为对照,对122例拟行保守治疗的异位妊娠进行评分,采用氨甲蝶呤联合米非司酮进行保守治疗并追踪治疗结局。结果:阴道彩超联合血清学3项指标评分法曲线下面积显著高于elito法曲线下面积(0.936vs0.890,P<0.05)。本法评分值≤6分是预测保守治疗成功的最佳临界值,准确度为92.6%,阳性预测值达95.9%。血清β-hCG<5000U/L、P<47.55nmol/L、阴道彩超血流信号<半环的保守治疗成功率显著升高(P<0.001)。结论:经TVCDS联合血清学指标评分法;评分≤6可有效预测异位妊娠保守治疗的成功。

关键词：异位妊娠(eP) 保守治疗经阴道彩超(TVCDS) 预测

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

Projectively Flat Singular Square Metrics with Constant Flag Curvature

引用

Acta Mathematica Sinica,english Series 2020年第6期36卷 638-650页

作者： Guang zu CHeN Xin yue CHeNG School of Science East China Jiao Tong UniversityNanchang 330013P.R.China School of Mathematical Sciences Chongqing Normal UniversityChongqing 401331P.R.China

In this paper,we study and characterize locally projectively flat singular square metrics with constant flag ***,we obtain the sufficient and necessary conditions that singular square metrics are locally pro jectively... 详细信息

关键词： Singular square metric projectively flat metric flag curvature

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

Upcycling of polyethylene terephthalate to1,4-cyclohexanedimethanol in water

引用

Science China Chemistry 2025年

作者： Shuhui Fang Zhiwen Gao Xinrui Shi Min Zhang Wei Zhang yue Liu State Key Laboratory of Petroleum Molecular & Process engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University engineering Center for Sustainable Carbon Science and Technology East China Normal University Institute of eco-Chongming

The recycling of waste polyethylene terephthalate（PeT）, an extensively used polymer as plastic and fiber materials, has become an urgent topic due to the rapid generation and accumulation of plastic waste into the environment. Current chemical recycling approaches to depolymerize and convert PeT into 1,4-cyclohexanedimethanol（CHDM）, an important chemical in the production of advanced polyesters, predominantly use organic solvents, such as alcohols or dioxane. Herein, we developed an environmentally friendly and economically viable pathway for converting PeT to CHDM using water as the solvent. In this process, PeT is sequentially hydrolyzed in water, hydrogenated to 1,4-cyclohexane dicarboxylic acid（CHDA）, and then reduced to CHDM. The PeT conversion rate is self-enhanced in aqueous medium via acid-catalyzed hydrolysis by the generated CHDA intermediate. A Pd-based catalyst（e.g., Pd/C） selectively hydrogenates the arene ring of the PeT monomer, terephthalic acid intermediate, and a Ru-Sn/C bimetallic catalyst reduces its COOH to CH2OH group. At optimized reaction conditions, a complete conversion of PeT and 80.1% yield of CHDM are obtained. Alternatively, this approach can also efficiently produce CHDA from PeT, with a yield up to 86.4%.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

The compound(e)-2-(3,4-dihydroxystyryl)-3-hydroxy-4H-pyran-4-one alleviates neuroinflammation and cognitive impairment in a mouse model of Alzheimer's disease

引用

Neural Regeneration Research 2025年第11期20卷 3330-3344页

作者： Xueyan Liu Wei Wu Xuejuan Li Chengyan Wang Ke Chai Fanru Yuan Huijuan Zheng Yuxing Yao Chenlu Li zu-Cheng Ye Daijun Zha Department of Medicinal Chemistry School of PharmacyFujian Medical UniversityFuzhouFujian ProvinceChina Fujian Provincial Key Laboratory of Brain Aging and Neurodegenerative Diseases School of Basic Medical SciencesFujian Medical UniversityFuzhouFujian ProvinceChina Institute of Laboratory Animal Center Fujian Medical UniversityFuzhouFujian ProvinceChina Department of Neurosurgery Neurosurgery Research InstituteThe First Affiliated HospitalFujian Medical UniversityFuzhouFujian ProvinceChina Department of Hyperbaric Oxygen National Regional Medical CenterBinhai Campus of the First Affiliated HospitalFujian Medical UniversityFuzhouFujian ProvinceChina

Previous studies have shown that the compound(e)-2-(3,4-dihydroxystyryl)-3-hydroxy-4H-pyran-4-one(D30),a pyromeconic acid derivative,possesses antioxidant and anti-inflammatory properties,inhibits amyloid-β aggregation,and alleviates scopolamine-induced cognitive impairment,similar to the phase Ⅲ clinical drug *** this study,we established a mouse model of Alzheimer's disease via intracerebroventricular injection of fibrillar amyloid-β to investigate the effect of D30 on fibrillar amyloid-β-induced *** results showed that D30 alleviated fibrillar amyloid-β-induced cognitive impairment,promoted fibrillar amyloid-β clearance from the hippocampus and cortex,suppressed oxidative stress,and inhibited activation of microglia and astrocytes.D30 also reversed the fibrillar amyloid-β-induced loss of dendritic spines and synaptic protein ***,we demonstrated that exogenous fibrillar amyloid-βintroduced by intracerebroventricular injection greatly increased galectin-3 expression levels in the brain,and this increase was blocked by *** the role of D30 in clearing amyloid-β,inhibiting neuroinflammation,protecting synapses,and improving cognition,this study highlights the potential of galectin-3 as a promising treatment target for patients with Alzheimer's disease.

关键词： Alzheimer's disease amyloid-β astrocyte cognitive impairment D30 dendritic spines galectin-3 microglia neuroinflammation neuron

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

Synthesis and characterization of porous 4VP-based adsorbent for Re adsorption as analogue to 99Tc

引用

Nuclear Science and Techniques 2017年第3期28卷 23-29页

作者： Pu-Yin Wang Jian-Hua zu yue-Zhou Wei School of Nuclear Science and engineering Shanghai Jiao Tong University Shanghai 200240 China

Technetium(^(99)Tc), a major fission product in nuclear reactors, of high yield, long-half-life and high mobility in the environment must be removed in nuclear fuel reprocessing. Considering rhenium(Re) and Tc are both VIIB elements, Re is a good chemical analogue to ^(99)Tc. Herein, we use Re as a substitution of ^(99)Tc to study adsorption and desorption behavior. Porous 4-vinylpyridine–divinylbenzene-based(4VP–DVB) adsorbent containing tertiary amine groups is synthesized by suspension polymerization and characterized by BeT, TGA, SeM and laser particle size analyzer. The adsorbent has high adsorption efficiency toward Re(VII) in 0.1 mol/L nitric acid solution, and the adsorption equilibrium can be achieved in 30 min. The adsorption kinetics of Re(VII)follows pseudo-second-order rate equation, the adsorption isotherm matches well with the Langmuir isotherm, and the adsorption capacity of Re(VII) on 4VP–DVB adsorbent is 352.1 mg/g at 298 K. Thermodynamic study reveals that the adsorption process is exothermic. This adsorbent is of separation convenience when a fixed-bed column is used,compared to the batch adsorption treatment.

关键词： Rhenium Technetium Porous adsorbent Adsorption

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

NASTCNN: a spatio-temporal convolutional neural network with non-local attention mechanism for image-induced brain activity pattern recognition

引用

Optoelectronics Letters 2025年

作者： TAN Xiangxin SHAO Mingxiong ZeNG Ke GU yue School of Computer Science and engineering， Tianjin University of Technology engineering Research Center of Learning-Based Intelligent System (Ministry of education)， Tianjin University of Technology Krembil Research Institute， University Health Network

Deciphering the brain’s visual processing mechanisms has always been a hot topic. Using neural signal patterns to predict the corresponding external visual stimuli is crucial in understanding the interaction of real visual scenes. There are some challenges in the study of image-induced brain activity pattern recognition based on electroencephalogram (eeG)， e.g. how to fully utilize the effective features of eeG signals to improve the classification， and how the frequency and the length of eeG effect the model performance. We design an experimental paradigm that minimizes the interaction between visual stimuli， and propose a spatio-temporal convolutional neural network with non-local attention mechanism (NASTCNN) for image-induced brain activity pattern recognition. The framework utilizes non-local feature extraction operations to realize global information interaction between eeG signals over long distances and enhance the feature expression of some important information. Our model achieves the best performance on both MNIST-eeG and ImageNet-eeG datasets. The classification results are 24.00% and 50.10% respectively， higher than the random probability. We also analyze the effects of different eeG frequency bands and time subsequences of different lengths on the classification performance and which brain regions are activated over time. The results show that when full frequency band and entire length sequence are selected， the classification result is optimal. The occipital region is essential for processing visual tasks， and the temporal region and some frontal regions also play important role in the later stage of visual decoding. This research can help us better understand the visual processing mechanism of the brain.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：