检索结果-南通市图书馆

维普期刊数据库博看期刊

急性低氧性呼吸衰竭患者清醒俯卧位通气依从性现状分析

在线全文

学校读者我要写书评

暂无评论

中国护理管理 2024年第6期24卷 862-867页

作者：侯进潘文彦刘霄梅静骅唐颖嘉李菁菁王灿李改乐蔡诗凝复旦大学附属中山医院护理部上海市200032

目的:调查急性低氧性呼吸衰竭患者对清醒俯卧位通气的依从性现状并分析其影响因素,为制定相应的改善策略提供参考。方法:采用便利抽样法,于2022年12月至2023年2月应用一般信息调查表、自制清醒俯卧位通气依从性阻碍因素问卷、Barthel指... 详细信息

目的:调查急性低氧性呼吸衰竭患者对清醒俯卧位通气的依从性现状并分析其影响因素,为制定相应的改善策略提供参考。方法:采用便利抽样法,于2022年12月至2023年2月应用一般信息调查表、自制清醒俯卧位通气依从性阻碍因素问卷、Barthel指数量表和数字疼痛评定量表对上海市某医院的急性低氧性呼吸衰竭患者进行调查。结果:85例患者参与调查,患者每日清醒俯卧位时间为4(2,6)小时,其中依从性好的患者30例(35.3%)。清醒俯卧位通气最常见的阻碍因素分别为:没有及时更换体位以缓解俯卧位的不适(63.5%)、对于俯卧位通气治疗意义的认识不足(42.4%)、对于疾病恢复缺乏信心(27.1%)。Logistic回归分析结果显示,疼痛程度是患者清醒俯卧位通气依从性的影响因素(P<0.05)。结论:急性低氧性呼吸衰竭患者对清醒俯卧位通气依从性不佳,疼痛程度较高的患者俯卧位实施情况较差。医疗团队应重视急性低氧性呼吸衰竭患者对清醒俯卧位通气的依从性现状,制定相应改善策略,以提高患者的耐受性,改善清醒俯卧位治疗依从性,进而提高患者的治疗效果。

关键词：清醒俯卧位急性低氧性呼吸衰竭依从性影响因素

发育不良和歪头病对变态末期棘胸蛙皮肤菌群的影响

在线全文

学校读者我要写书评

暂无评论

水生生物学报 2024年第5期48卷 839-848页

作者：徐杨江昀侯金亮李娟冯兴浪刘新华李德亮向建国李军华湖南农业大学水产学院长沙410128

实验基于高通量测序技术,以健康(CTL组)、发育不良(DD组)和患歪头病(TD组)的棘胸蛙(Quasipaa spinosa)为研究对象,系统地探索宿主健康状态与皮肤微生物菌群组成、多样性及功能之间的潜在关系。所有样本经测序、质控及聚类获得2997条扩... 详细信息

实验基于高通量测序技术,以健康(CTL组)、发育不良(DD组)和患歪头病(TD组)的棘胸蛙(Quasipaa spinosa)为研究对象,系统地探索宿主健康状态与皮肤微生物菌群组成、多样性及功能之间的潜在关系。所有样本经测序、质控及聚类获得2997条扩增子序列变体(ASVs),注释32个门,76个纲,167个目,259个科和402个属,其中变形菌门(Proteobacteria)、厚壁菌门(Firmicutes)和拟杆菌门(Bacteroidota)为棘胸蛙皮肤主要优势菌门(>1%),但丰度受宿主健康状态的影响。在属水平上筛选获得50个菌群标志物,其中23个(如乳杆菌(Lactobacillus)、德沃斯氏(Devosia)、希瓦氏菌(Shewanella)和Luteolibacter)在CTL组中相对丰度较高,提示棘胸蛙的健康状态;19个(如短稳杆菌(Empedobacter)、芽孢杆菌(Bacillus)和短螺旋体(Brevinema))在DD组中相对丰度较高,提示棘胸蛙发育不良的病症;8个(如伊丽莎白菌(Elizabethkingia)、柠檬酸杆菌(Citrobacter)和不动杆菌(Acinetobacter))在TD组中相对丰度较高,提示棘胸蛙歪头病的病症。多样性分析表明,TD组的多样性和均一度与CTL组和DD组相比显著降低,微生物菌群组成也表现出明显分离。功能预测表明,CTL组和TD组皮肤微生物菌群之间功能差异主要富集在新陈代谢相关通路。总之,该项研究揭示不同健康状态下棘胸蛙皮肤微生物菌群的组成和变化,突出共生微生物菌群在两栖动物健康养殖和疾病预防中的潜在应用。

关键词：变态末期发育不良歪头病皮肤微生物菌群棘胸蛙

同方期刊数据库

撑开器辅助复位克氏针内固定治疗桡骨远端骨折

在线全文

学校读者我要写书评

暂无评论

临床骨科杂志 2024年第3期27卷 382-385页

作者：谭新欢侯金永毕宏政高祥杨凯山东省文登整骨医院骨、手显微外科二病区山东威海264400

目的探讨撑开器辅助复位克氏针内固定治疗桡骨远端C2型骨折的临床疗效。方法采用撑开器辅助复位克氏针内固定治疗320例桡骨远端C2型骨折患者。记录掌倾角、尺偏角、桡骨高度、骨折愈合及并发症发生情况,根据Gartland-Werley腕关节功能... 详细信息

目的探讨撑开器辅助复位克氏针内固定治疗桡骨远端C2型骨折的临床疗效。方法采用撑开器辅助复位克氏针内固定治疗320例桡骨远端C2型骨折患者。记录掌倾角、尺偏角、桡骨高度、骨折愈合及并发症发生情况,根据Gartland-Werley腕关节功能评分标准评价疗效。结果患者均获得随访,时间12~16个月。骨折临床愈合时间6~8(7.2±1.1)周,骨性愈合时间8~12(9.5±1.6)周。术后4例出现桡神经浅支损伤表现,8例出现针孔周围渗出伴红肿,均未出现骨髓炎、感染、骨折延期愈合或不愈合等并发症。末次随访时,掌倾角、尺偏角及桡骨高度均恢复正常或接近正常,与术后第2天比较差异均无统计学意义(P>0.05)。术后12个月根据Gartland-Werley腕关节评分标准进行疗效评定:优98例,良177例,可34例,差11例,优良率为85.9%。结论撑开器辅助复位克氏针内固定治疗桡骨远端C2型骨折具有操作简便、复位满意、固定牢靠、损伤小、并发症少的优点,腕关节功能恢复满意。

关键词：桡骨远端骨折克氏针内固定

Additive Maps Between Standard Operator Algebras Compressing Certain Spectral Functions

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2008年第12期24卷 2041-2048页

作者： jin Chuan hou Department of Mathematics Shanxi University Taiyuan 030000 P R. China Department of Mathematics Taiyuan University of Technology Taiyuan 030024 P. R. China Department of Mathematics Shanxi University Taiyuan 030000 P. R. China Department of Mathematics Shanxi Normal University Linfen 041004 P. R. China

We characterize the surjective additive maps compressing the spectral function Δ（·） between standard operator algebras acting on complex Banach spaces, where Δ（·） stands for any one of nine spectral functions σ（·）, σl（·）, σr（·）,σl（·） ∩ σr（·）, δσ（·）, ησ（·）, σap（·）, σs（·）, and σap（·） ∩ σs（·）.

关键词： additive maps standard operator algebras spectral functions isomorphisms

Characteristics of the HIV/AIDS Epidemic among People Aged≥50 Years in China during 2018–2021

在线全文

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第4期37卷 399-405页

作者： hou Yu Shan jin Yi Chen CAI Chang TANG hou Lin QIN Qian Qian LYU Fan National Center for AIDS/STD Control and Prevention Chinese Center for Disease Control and PreventionBeijing 102206China

Objective This study aimed to determine the current epidemiological status of PLWHA aged≥50 years in China from 2018 to *** also aimed to recommend targeted interventions for the prevention and treatment of HIV/AIDS in elderly *** Data on newly reported cases of PLWHA,aged≥50 years in China from 2018 to 2021,were collected using the *** tests and spatial analyses were also *** Between 2018 and 2021,237,724 HIV/AIDS cases were reported among patients aged≥50 years in *** main transmission route was heterosexual transmission(91.24%).Commercial heterosexual transmission(CHC)was the primary mode of transmission among males,while non-marital non-CHC([NMNCHC];60.59%)was the prevalent route in *** proportion of patients with CHC decreased over time(Z=67.716,P<0.01),while that of patients with NMNCHC increased(Z=153.05,P<0.01).The sex ratio varied among the different modes of infection,and it peaked at 17.65 for *** spatial analysis indicated spatial clustering,and the high-high clustering areas were mainly distributed in the southwestern and central-southern *** In China,PLWHA,aged≥50 years,were predominantly infected through heterosexual *** primary modes of infection were CHC and *** were variations in the sex ratio among different age groups,infected through various sexual ***/AIDS cases exhibited spatial *** on these results,the expansion of HIV testing,treatment,and integrated behavioral interventions in high-risk populations is recommended to enhance disease detection in key regions.

关键词： HIV/AIDS Aged≥50 years China

在线全文

学校读者我要写书评

暂无评论

化工管道低温法兰密封技术研究进展

山东化工 2024年第13期53卷 94-96,100页

作者：侯进朱清江姜小鑫马慧临李晓波中国船舶集团有限公司第七一一研究所上海201108

利用更加低温的氮氦气可以将LNG船上产生的BOG再次冷却成LNG,低温流动气体的密封一直以来是较大的问题。依托于再液化项目,本文主要分析了影响管道中法兰密封效果的因素,对低温情况下法兰垫片的选用、密封办法的改进进行调试与探讨,发... 详细信息

利用更加低温的氮氦气可以将LNG船上产生的BOG再次冷却成LNG,低温流动气体的密封一直以来是较大的问题。依托于再液化项目,本文主要分析了影响管道中法兰密封效果的因素,对低温情况下法兰垫片的选用、密封办法的改进进行调试与探讨,发现在增加低温补偿碟簧的基础上,优化螺栓预紧力后,低温法兰泄漏率大大降低,旨在为船舶上低温流体密封提供一定的指导作用。

关键词：低温密封法兰泄露改进方法船舶环保

Re-delocalization of localized d-electrons in VO_(2)(R)-VS_(4)hetero-structure enables high performance of rechargeable Mg-ion batteries

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2024年第5期12卷 1830-1840页

作者： Lijiao Zhou Chao Shen Xueyang hou Zhao Fang Ting jin Keyu Xie School of Materials Science and Engineering Northwestern Polytechnical UniversityXi’an 710072China School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China

Rechargeable Mg-ion batteries(MIBs)have attracted much more attentions by virtue of the high capacity from the two electrons ***,the reversible Mg^(2+)diffusion in cathode materials is restricted by the strong interactions between the high-polarized bivalent Mg^(2+)ions and anionic ***,we design and propose a hetero-structural VO_(2)(R)-VS_(4)cathode,in which the re-delocalized d-electrons can effectively shield the polarity of Mg^(2+)***,the electrons should spontaneously transfer from VS_(4)to VO_(2)(R)through the interfaces of hetero-structure due to the lower work function value of VS_(4).Furthermore,the internal electrons transfer lead to the electronic injection into VO_(2)(R)from VS_(4)and the partially broken V-V dimers,indicating the presence of lone pair electrons and charge *** from the shield effect of re-delocalized electrons,and the weakened attraction between cations and O/S anions enables more S^(2-)-S_(2)^(2-)redox groups to participate the electrochemical reactions and compensate the double charge of Mg^(2+)***,VO_(2)(R)-VS_(4)hetero-structure exhibits a high specific capacity of 554 mA h g^(-1)at 50 mA g^(-1).It is believed that the charge re-delocalization of cathode extremely boost the Mg^(2+)ions migration for the high-capacity of MIBs.

关键词： Mg-ion batteries Cathode Charge delocalization Electronic structure Heterostructure

Rapid synthesis of oxygen-defected molybdenum oxides quantum dots as efficient nanozymes for healing diabetic ulcers

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第7期17卷 6376-6385页

作者： Fangjun Cao Hui Feng Jiaxin Yao Xiang hou Tiezhi jin Junfeng Hui Shaanxi Key Laboratory of Qinling Ecological Security Shaanxi Institute of ZoologyXi’an 710072China Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing Ministry of EducationSchool of Chemical EngineeringNorthwest UniversityXi'an 710069China Shaanxi Key Laboratory of Degradable Biomedical Materials and Shaanxi R&D Center of Biomaterials and Fermentation Engineering School of Chemical EngineeringNorthwest UniversityXi'an 710069China

The continuous inflammatory response in diabetic skin wounds leads to excessive production of reactive oxygen species,which cause a vicious circle of long-term *** the therapeutic research of metal nanoenzymes for healing diabetic ulcers,it still faces the challenges in poor nanoenzymes activity and low-efficient therapeutic ***,ultrasmall oxygen-deficient MoO_(3−X)quantum dots were fabricated and employed as nanoenzymes for healing fiabetic *** PEGylation,PEGylated MoO_(3−X)quantum dots(MoO_(3−X)/PEG)with oxygen vacancies exhibits excellent photothermal,peroxidase/catalase-like *** addition,these MoO_(3−X)/PEG showed superior properties in scavenging H_(2)O_(2)and effectively inhibiting the scavenging of reactive oxygen *** importantly,such an oxygen-defected MoO_(3−X)/PEG had obvious antibacterial and skin repairing effects on alleviating hypoxia and excessive oxidative stress even in a mouse model of diabetic ulcers,inhibiting proinflammatory cytokines and significantly accelerating the healing of infected wounds,which shows great application potential for promoting wound *** work highlights that the developed oxygen defected molybdenum oxide compounds capable of peroxidaselike and catalase-like activities show great application potential for healing diabetes wound.

关键词： oxygen-defected molybdenum-based nanoenzymes antioxidant anti-inflammatory diabetes ulcer wounds

Separability for Positive Operators on Tensor Product of Hilbert Spaces

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

Acta Mathematica Sinica,English Series 2021年第6期37卷 893-910页

作者： jin Chuan hou jin Fei CHAI College of Mathematics Taiyuan University of TechnologyTaiyuan 030024P.R.China

The separability and the entanglement(that is,inseparability)of the composite quantum states play important roles in quantum information ***,a quantum state is a trace-class positive operator with trace one acting on a complex separable Hilbert *** this paper,in more general frame,the notion of separability for quantum states is generalized to bounded positive operators acting on tensor product of Hilbert ***,not like the quantum state case,there are different kinds of separability for positive operators with different operator *** types of such separability are discussed;several criteria such as the finite rank entanglement witness criterion,the positive elementary operator criterion and PPT criterion to detect the separability of the positive operators are established;some methods to construct separable positive operators by operator matrices are *** may also make us to understand the separability and entanglement of quantum states better,and may be applied to find new separable quantum states.

关键词： Hilbert spaces tensor products positive operators separability entanglement