检索结果-南通市图书馆

骨性Ⅰ类和骨性Ⅲ类错[牙合]畸形患者的髁突-关节窝形态特征对比

在线全文

学校读者我要写书评

暂无评论

口腔医学 2023年第6期43卷 524-528,545页

作者：张程程周浠范力文马兰潘永初南京医科大学口腔疾病研究江苏省重点实验室南京医科大学附属口腔医院正畸科江苏南京210029

目的研究骨性Ⅰ类错[牙合]畸形、骨性Ⅲ类错[牙合]伴上颌骨发育不足和骨性Ⅲ类错[牙合]伴下颌骨发育过度患者之间的髁突-关节窝的形态差异。方法收集2021年3月至2022年12月于南京医科大学附属口腔医院正畸科就诊患者,其中包括骨性Ⅰ类错... 详细信息

目的研究骨性Ⅰ类错[牙合]畸形、骨性Ⅲ类错[牙合]伴上颌骨发育不足和骨性Ⅲ类错[牙合]伴下颌骨发育过度患者之间的髁突-关节窝的形态差异。方法收集2021年3月至2022年12月于南京医科大学附属口腔医院正畸科就诊患者,其中包括骨性Ⅰ类错[牙合]畸形、骨性Ⅲ类错[牙合]伴上颌骨发育不足和骨性Ⅲ类错[牙合]伴下颌骨发育过度患者共58例,行锥形束CT扫描,利用Mimics 20.0软件和Dolphin 11.9软件对髁突和关节窝的相关角度及线性指标进行测量评估,采用SPSS 26.0软件进行统计学分析。结果骨性Ⅰ类错[牙合]畸形、骨性Ⅲ类错[牙合]伴上颌骨发育不足和骨性Ⅲ类错[牙合]伴下颌骨发育过度患者,每组患者的左侧和右侧的髁突和关节窝形态一致,差异无统计学意义(P>0.05);骨性Ⅲ类错[牙合]伴上颌骨发育不足和骨性Ⅲ类错[牙合]伴下颌骨发育过度患者均较骨性Ⅰ类错[牙合]畸形患者的髁突上部高度增加(P0.05)。结论三组双侧颞下颌关节基本对称,差异无统计学意义;骨性Ⅰ类错[牙合]畸形与骨性Ⅲ类错[牙合]畸形在髁突上部高度、关节结节后斜面倾斜度和关节窝高度存在显著差异;但在骨性Ⅲ类错[牙合]畸形中,上颌骨发育不足患者和下颌骨发育过度患者的颞下颌关节的髁突-关节窝形态特征虽有差异,但不具有统计学意义。

关键词：髁突关节窝骨性Ⅲ类错[牙合]畸形上颌骨发育不足下颌骨发育过度

非小细胞肺癌患者术中发现胸膜播散的预后分析

在线全文

学校读者我要写书评

暂无评论

中华胸部外科电子杂志 2020年第1期7卷 1-11页

作者：范力文杨海堂韩轲姚烽赵洋高文赵珩上海交通大学附属胸科医院胸外科 200030

目的评估手术切除肿瘤对非小细胞肺癌(NSCLC)伴恶性胸膜播散患者预后的影响。方法收集2011年1月至2015年12月上海市胸科医院NSCLC手术患者的临床资料,将术中意外发现胸膜播散的患者纳入研究。结果通过术中或术后病理学检查,共有160例NS... 详细信息

目的评估手术切除肿瘤对非小细胞肺癌(NSCLC)伴恶性胸膜播散患者预后的影响。方法收集2011年1月至2015年12月上海市胸科医院NSCLC手术患者的临床资料,将术中意外发现胸膜播散的患者纳入研究。结果通过术中或术后病理学检查,共有160例NSCLC患者被诊断为胸膜播散。71例(44.4%)仅行胸膜结节活检(活检组),89例(55.6%)行原发肿瘤切除术(切除组)。中位无进展生存期(PFS)和总生存期OS)分别为13个月和41个月,3、5年的无进展生存率分别为13.1%和5.7%,总生存率分别为56.0%和28.7%。切除组患者的PFS和OS均明显优于活检组(19个月vs 10个月,P=0.000;48个月vs 33个月,P=0.000)。切除组的3、5年无进展生存率和总生存率均高于活检组(20.8%vs 3.2%,10.8%vs 0;67.8%vs 41.0%,37.7%vs 18.2%)。接受亚肺叶切除术与肺叶切除术患者的生存差异无统计学意义(P=0.34)。单因素和多因素分析结果显示辅助靶向治疗、无恶性胸腔积液、T1/T2期和N0期是独立的预后因素。结论术中诊断为NSCLC伴胸膜播散的患者可通过手术切除原发肿瘤和包括靶向治疗在内的多学科治疗获益。辅助靶向治疗、无恶性胸腔积液、低T分期、低N分期患者的预后较好。在可行的情况下,楔形切除术可能是一个合适的选择,虽然不同手术方式亚组的预后差异无统计学意义,但其创伤更小。

关键词：胸膜播散非小细胞肺癌手术治疗预后

Massive data clustering by multi-scale psychological observations

在线全文

学校读者我要写书评

暂无评论

National Science Review 2022年第2期9卷 43-51页

作者： Shusen Yang liwen Zhang Chen Xu Hanqiao Yu Jianqing fan Zongben Xu National Engineering Laboratory of Big Data Analytics Xi'an Jiaotong University Department of Mathematics and Statistics University of Ottawa Center for Statistics and Machine Learning Princeton University Industrial Artificial Intelligent Center Pazhou Laboratory

Clustering is the discovery of latent group structure in data and is a fundamental problem in artificial intelligence,and a vital procedure in data-driven scientific research over all ***,existing methods have various limitations,especially we ak cognitive interpretability and poor computational scalability,when it comes to clustering massive datasets that are increasingly available in all ***,by simulating the multi-scale cognitive observation process of humans,we design a scalable algorithm to detect clusters hierarchically hidden in massive *** observation scale changes,following the Weber-Fechner law to capture the gradually emerging meaningful grouping *** validated our approach in real datasets with up to a billion records and 2000 dimensions,including taxi trajectories,single-cell gene expressions,face images,computer logs and *** approach outperformed popular methods in usability,efficiency,effectiveness and robustness across different domains.

关键词： massive data clustering psychological observation Weber–Fechner law cognitive interpretability computational scalability

Mining candidate genes of grape berry cracking based on high density genetic map

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2023年第4期9卷 743-753页

作者： Chuan Zhang liwen Cui Chonghuai Liu Xiucai fan Jinggui fang Institute of Grape Science and Engineering College of HorticultureQingdao Agricultural UniversityQingdaoShandong 266109China Zhengzhou Fruit Research Institute Chinese Academy of Agricultural SciencesZhengzhouHenan 450009China College of Agro-grassland Science Nanjing Agricultural UniversityNanjingJiangsu 210095China

Fruit cracking is a phenomenon in which the peel cracks during grape berry development,which seriously affects the yield and quality of the ***,there are few studies on the mining of candidate genes related to berry *** order to better understand the genetic basis of berry cracking,we used the results of previous quantitative trait locus(QTL)mapping,combined with field surveys of berry-cracking types and the berry-cracking rate,to mine candidate berry-cracking *** results showed that three identical QTL loci were detected in two years(2019 and 2020);and three candidate genes were annotated in the QTL *** mature berries,the expressions of the candidate genes were more abundant in the cracking-susceptible parent(‘Crimson Seedless’)than in the cracking-resistant parent(‘Muscat Hamburg’).Grape berry cracking is a complex trait controlled by multiple genes,mainly including genes encoding cellulose synthase–like protein H1,glucan endo-1,3-beta-glucosidase 12,and brassinosteroid insensitive 1-associated receptor kinase *** high expression of the candidate berry-cracking genes may promote the occurrence of berry *** study helps elucidate the genetic mechanism of grape berry cracking.

关键词： Grape berry Berry-cracking rate Berry-cracking type Candidate gene Quantitative trait loci

在线全文

学校读者我要写书评

暂无评论

传染病医院给排水系统设计要点探析

中国医院建筑与装备 2023年第6期24卷 60-63页

作者：孙宏伟李慧张坡解云飞杨逸辉范力文中建中原建筑设计院有限公司郑州450000 常州市嘉泽园林绿化工程有限公司常州213000 河南省人民医院郑州450000

介绍了三门峡市传染病医院给排水系统设计特点,总结了传染病医院给排水系统设计应注意的要点,提出了生活给水系统应做好不同区域之间的防回流污染措施,生活排水系统应做好水封、密封措施,以保证整个污水管网系统的安全性。

关键词：传染病医院给排水给水系统排水系统倒流防止器污水处理

High-pressure Sintering of Boron Carbide-Titanium Diboride Composites and Its Densification Mechanism

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2020年第2期35卷 356-362页

作者： GAO Jiancheng WANG Dangqiang LEI liwen ZHANG fan ZHANG Jinyong FU Zhengyi State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

A high-pressure hot-pressing process was applied to densify a commercial boron carbide-titanium diboride (B4C-TiB2) powder *** fully dense (98.6%) materials were obtained at 1700℃ under a pressure of *** to the sintering temperature required to achieve similar results when a pressure of only 30MPa was applied,the sintering temperature was found to decrease by about 200℃ under pressure of 100 *** of the thermodynamics and microstructure showed that the plastic deformation of the B4C grains induced by high pressure dominated the densification mechanism when high pressure was ***,higher pressure resulted in remarkably improved mechanical properties of the composites,which could be traced back to the generation of stacking faults in the B4C grains and aggregation of TiB2.

关键词： hot-pressing high-pressure sintering densification TiB2-B4C

Securing Patient-Centric Personal Health Records Sharing System in Cloud Computing

在线全文

学校读者我要写书评

暂无评论

China Communications 2014年第A01期11卷 121-127页

作者： CHEN Danwei CHEN Linling fan Xiaowei HE liwen PAN Su Hu Ruoxiang NanjingUniversityofPostsandTelecommunications Nanjing210003JiangsuProvinceER.China InformationSecurityCenter BeijingUniversityofPostsandTelecommunicationsBeijing100876China NationalEngineeringLaboratoryforDisasterBackupandRecovery Beijing100876China

Personal health record （PHR） enables patients to manage their own electronic medical records （EMR） in a centralized way, and it is oRen outsourced to be stored in a third-party server. In this paper we propose a novel secure and scalable system for sharing PHRs. We focus on the multiple data owner scenario, and divide the users in the system into multiple security domains that greatly reduce the key management complexity for owners and users. A high degree of patient privacy is guaranteed by exploiting hierarchical and multi- authority attribute-sets based encryption （HM- ASBE）. Our system not only supports compound attributes due to flexible attribute sets combinations, but also achieves fine-grained access control. Our scheme supports efficient on-demand user/attribute revocation and break-glass access under emergency scenarios.

关键词： personal health records attribute- based encryption data privacy fine-grained access control

Mapping the topography and cone morphology of the Dalinor volcanic swarm in Inner Mongolia with remote sensing and DEM Data

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

Frontiers of Earth Science 2016年第3期10卷 578-594页

作者： liwen GONG Ni LI Qicheng fan Yongwei ZHAO Liuyi ZHANG Chuanjie ZHANG State Key Laboratory of Earthquake Dynamics Institute of Geology China Earthquake Administration Beijing 100029 China Chongqing Earthquake Administration Chongqing 401147 China Key Laboratory of Active Tectonics and Volcano Institute of Geology China Earthquake Administration Beijing 100029 China

The Dalinor volcanic swarm, located south of Xilinhot, Inner Mongolia of China, was a result of multistage eruptions that occurred since the Neogene period. This swarm is mainly composed of volcanic cones and lava tablelands. The objective of this study is to map the topography and morphology of this volcanic swarm. It is based on a variety of data collected from various sources, such as the digital elevation model （DEM）, Landsat images, and a 1：50,000 topographic map, in addition to various software platforms, including ArcGIS, Envi4.8, Global Mapper, and Google Earth for data processing and interpretation. The results show that the overall topography of the volcanic swarm is a platform with a central swell having great undulation, sizable gradient variations, a rough surface, and small terrain relief. According to the undulating characteristics of the line profile, the volcanic swarm can be divided into four stairs with heights of 1,280 m, 1,360 m, 1,440 m, and 1,500 m. The analysis of the swath profile characterizes the two clusters of volcanoes with different height ranges and evolution. The lava tablelands and volcanic cones are distributed in nearly EW-trending belts, where tableland coverage was delineated with superposed layers of gradients and degrees of relief. According to the morphology, the volcanic cones were classified into four types： conical, composite, dome, and shield. The formation causes and classification basis for each type of volcanic cone were analyzed and their parameters were extracted. The HID ratios of all types of volcanic cones were then statistically determined and projected to create a map of volcanic density distribution. Based on the relationship between distribution and time sequence of the formation of different volcanic cones, itcan be inferred that the volcanic eruptions migrated from the margins to the center of the lava plateau. The central area was formed through superposition of multi-stage eruptive materials. In addition,

关键词： Dalinor volcanic swarm volcanic geomor-phology cone morphology cone formation and evolution,fault

High ecostoichiometric stability and accumulating SiO2 and NO3- as main physiological adaptive mechanisms for reed to adverse environments

在线全文

学校读者我要写书评

暂无评论

Research in Cold and Arid Regions 2024年第5期16卷 250-258页

作者： JianJun Kang fan Yang DongMei Zhang liwen Zhao Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands Linze Inland River Basin Research Station Chinese Ecosystem Research NetworkNorthwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Minqin National Studies Station for Desert Steppe Ecosystem Gansu Desert Control Research Institute

Previous studies have shown that nutrients accumulation played important roles in resisting to stress resistance of *** study examined the ecostoichiometric internal stability （EIS） of nutrients accumulation and,concomitantly identified the main resistant regulating substances and their contributions to stress resistance of reed （Gramineae） in arid desert *** （digging method） and soil samples （quartering method）) obtained from sand dune （SD）,desert steppe （DP）,interdune lowland （IL）,saline meadow （SM） and wetland （W） habitats were brought back to the lab for nutrients *** indicated that soil nutrients differed obviously,while reed maintained relatively stable ratios of SiO2:N,N:K,and P:K when the eco-environments changed in different ***,reed exhibits common adaptive characteristics by mainly accumulating large amounts of SiO2（122.6–174.0 g/kg） and NO3-（166.1–216.6 g/kg）,as well as moderate levels of soluble sugar （SS:24.0–55.0 g/kg）,which are mainly stored in leaves for stress *** contribution of ions to stress resistance was 80.03%–91.15%（with SiO2and NO3-accounting for 54.91%–63.10%）,whereas the contribution of solutes was only 8.85%–19.97%（with SS contributing to 5.14%–10.91%） in different *** findings suggest that maintaining relatively high EIS,while still accumulating SiO2and NO3-as main physiological regulators might be an effective strategy for reed to positively respond to adverse habitats,which provide a strong theoretical basis and technical reference for searching useful methods for restoration and reconstruction of the degraded ecosystems in desert oasis regions.

关键词： Adaptive strategy Desert oasis Gramineae Nutrients Stoichiometric characteristics