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Impact of cancer on mortality rates in patients with sepsis:A metaanalysis and meta-regression of current studies

World Journal of Clinical Cases 2022年第21期10卷 7386-7396页

作者： Mei-jiao xiang Guo-Liang Chen Department of Comprehensive Intensive Care Unit Jinhua People’s HospitalJinhua 321000Zhejiang ProvinceChina Department of Hepatobiliary Pancreatic Gastrointestinal Surgery Jinhua People's HospitalJinhua 321000Zhejiang ProvinceChina

BACKGROUND Research suggests that approximately 6%of adult patients admitted to hospitals in the United States present with sepsis and there has been a minimal change in the incidence of this condition in the last ***,patients with cancer generally have a higher incidence of sepsis due to immunosuppression caused by cancer or its *** To assess if cancer increases the mortality rates in sepsis patients by pooling evidence from contemporary *** PubMed,Embase,and Google Scholar databases were searched from January 1,2001 to December 15,2021 for studies comparing outcomes of sepsis patients based on the presence of active *** data were pooled using a random-effects model,with the odds ratio(OR)and 95%confidence interval(CI)***-regression was conducted to assess the influence of confounders on mortality *** Nine studies were *** meta-analysis demonstrated a non-significant tendency towards increased risk of early mortality(OR=2.77,95%CI:0.88-8.66,I^(2)=99%)and a statistically significantly increased risk of late mortality amongst sepsis patients with cancer as compared to non-cancer sepsis patients(OR=2.46,95%CI:1.42-4.25,I^(2)=99%).Overall,cancer was found to significantly increase the risk of mortality in sepsis patients(OR=2.7,95%CI:1.07-6.84,I^(2)=99%).Metaanalysis indicated a statistically significantly increased risk of mortality in patients with solid tumors as well as hematological ***-regression indicated that an increase in the prevalence of comorbid pulmonary and renal diseases increased the risk of mortality in cancer patients with *** rates increased with an increase in the percentage of patients with urinary tract infections while an inverse relationship was seen for infections of cutaneous *** Contemporary evidence indicates that the presence of any cancer in sepsis patients significantly increases the risk of *** data sugg

关键词： Sepsis Septic shock Malignancy Immunocompromised Mortality

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从二元社会结构视角看地方农业产业转型升级——以陕西省猕猴桃产业为例

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三峡大学学报（人文社会科学版） 2025年第1期47卷 47-56页

作者：张继焦薛晓宏中国社会科学院大学社会与民族学院北京102488 中国社会科学院民族学与人类学研究所北京100081 中国社会科学院大学马克思主义学院北京102488

近年来,乡村产业振兴备受重视,许多地方都在致力于推动当地特色农业产业转型与升级,希望从区域走向全国乃至世界。但是现实中却发现很多地区特色农业产业的转型与升级面临着许多制约因素,那如何才能推动区域特色农业产业实现转型与升级... 详细信息

近年来,乡村产业振兴备受重视,许多地方都在致力于推动当地特色农业产业转型与升级,希望从区域走向全国乃至世界。但是现实中却发现很多地区特色农业产业的转型与升级面临着许多制约因素,那如何才能推动区域特色农业产业实现转型与升级,将区域特色农业产业推向全国呢?从二元社会结构视角,采用“伞式社会”和“蜂窝式社会”这一对概念,对陕西省猕猴桃产业发展历程进行阶段上的划分,详细分析了不同阶段官方“伞式社会”和民间“蜂窝式社会”力量的作用。通过不同阶段两种力量结构和功能的动态演变过程的分析,可以看到在每一阶段,找到官方“伞式社会”和民间“蜂窝式社会”二者发挥作用的结合点非常重要,双方都是可以发挥强大作用的主体,但是任何一方的单打独斗都无法在如今完成本区域农业产业的转型和升级,只有二者“高程度、高默契”的协同才能完成一个区域农业产业从传统向现代的转变,实现产业的转型与升级,从而实现从“区域到全国性”的跨越。

关键词：二元社会结构 “伞式社会” “蜂窝式社会” 陕西省猕猴桃产业

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Solid FeS lubricant: a possible alternative to MoS2 for Cu–Fe-based friction materials

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International Journal of Minerals,Metallurgy and Materials 2017年第11期24卷 1278-1283页

作者： Tao Peng Qing-zhi Yan xiao-lu Zhang xiao-jiao Shi Laboratory of Special Ceramics and Powder Metallurgy University of Science and Technology Beijing Beijing 100083 China

Molybdenum disulfide(MoS_2) is one of the most commonly used solid lubricants for Cu–Fe-based friction materials. Nevertheless, MoS_2 reacts with metal matrices to produce metal sulfides(e.g., FeS) and Mo during sintering, and the lubricity of the composite may be related to the generation of FeS. Herein, the use of FeS as an alternative to MoS_2 for producing Cu–Fe-based friction materials was investigated. According to the reaction principle of thermodynamics, two composites—one with MoS_2(Fe–Cu–MoS_2 sample) and the other with FeS(FeS–Cu_2S–Cu–Fe–Mo sample), were prepared and their friction behaviors and mechanical properties were compared. The results showed that MoS_2 reacted with the Cu–Fe matrix to produce FeS, metallic ternary sulfides, and Mo when sintered at 1050°C. The MoS_2–Cu–Fe and FeS–Cu_2S–Cu–Fe–Mo samples thereby exhibited similar characteristics with respect to phase composition, density, hardness, and tribological behaviors. Micrographs of the worn surfaces revealed that the stable friction regime for both composites stemmed from the iron sulfides friction layers rather than from the molybdenum sulfides layers.

关键词： friction materials solid lubricants iron sulfides molybdenum sulfides

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Design and application of a multichannel"cross"hot tearing tendency device:A study on hot tearing tendency of Al alloys

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China Foundry 2022年第4期19卷 327-334页

作者： Ming Su Wen-tao Zheng Deng-ke Fu Hong-jun Huang xiao-jiao Zuo Chun-yu Yue Yu-xiang Wang xiao-guang Yuan School of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China

Hot tearing is one of the most serious defects during the casting solidification *** this study,a new type of multichannel"cross"hot tearing device was *** hot cracks initiation and propagation were predicted by the relationship between temperature,shrinkage force and solidification time during the casting solidification *** reliability and practicability of the multichannel"cross"hot tearing device were verified by casting experiments and numerical *** theoretical calculation based on Clyne-Davies model and numerical simulation results show that the hot tearing tendency decreases in the order:2024 Al alloy>Al-Cu alloy>Al-Si alloy at a pouring temperature of 670°C and a mold temperature of 25°*** of liquid films at the end of solidification plays an important role in the propagation process of hot *** decrease of hot tearing tendency is attributed to the feeding of liquid film and intergranular bridging.

关键词： hot tearing testing device hot cracking tendency solidification process formation mechanism numerical simulation

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Influence of original microstructure on the transformation behavior and mechanical properties of ultra-high-strength TRIP-aided steel

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International Journal of Minerals,Metallurgy and Materials 2015年第3期22卷 262-271页

作者： Hong-xiang Yin Ai-min Zhao Zheng-zhi Zhao xiao Li Shuang-jiao Li Han-jiang Hu Wei-guang Xia Metallurgical Engineering Research Institute University of Science and Technology Beijing Beijing Laboratory of Metallic Materials and Processing for Modern Transportation Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of Mechanics Chinese Academy of Sciences

The transformation behavior and tensile properties of an ultra-high-strength transformation-induced plasticity （TRIP） steel （***） were investigated by different heat treatments for automobile applications. The results show that F-TRIP steel, a tradi- tional TRIP steel containing as-cold-rolled ferfite and pearlite as the original microstructure, consists of equiaxed grains of intercritical ferrite surrounded by discrete particles of M/RA and B. In contrast, M-TRIP steel, a modified TRiP-aided steel with martensite as the original mi- crostlucture, containing full martensite as the original microstructure is comprised of lath-shaped grains of ferrite separated by lath-shaped martensite/retained austenite and bainite. Most of the austenite in F-TRIP steel is granular, while the austenite in M-TRIP steel is lath-shaped. The volume fraction of the retained austenite as well as its carbon content is lower in F-TRIP steel than in M-TRIP steel, and austenite grains in M-TRIP steel are much finer than those in F-TRIP steel. Therefore, M-TRIP steel was concluded to have a higher austenite stability, re- sulting in a lower transformation rate and consequently contributing to a higher elongation compared to F-TRIP steel. Work hardening be- havior is also discussed for both types of steel.

关键词： high strength steels transformation-induced plasticity phase transformations mechanical properties original microstructure work hardening

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牙哈凝析气田测试地层压力异常的校正

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天然气地球科学 2006年第2期17卷 227-229页

作者：王洪峰周理志唐明龙张芬娥肖香姣乔霞中国石油塔里木油田公司勘探开发研究院新疆库尔勒841000

压力直接影响到气藏的开发效果及动态分析,因此运用测试不准确的地层压力将会大大影响开发效果评价及动态分析。牙哈凝析气田采用循环注气部分保压方式开发,历年的压力监测资料表明压力解释结果异常,其采气井压力恢复测试的地层压力普... 详细信息

压力直接影响到气藏的开发效果及动态分析,因此运用测试不准确的地层压力将会大大影响开发效果评价及动态分析。牙哈凝析气田采用循环注气部分保压方式开发,历年的压力监测资料表明压力解释结果异常,其采气井压力恢复测试的地层压力普遍高于注气井压降试井的地层压力,给动态分析带来了很大的困难。为了解决这个难题,通过现场测试资料的分析,运用试井基础理论,得出地层压力异常的原因是测试期间的井间干扰引起的;利用井间干扰理论,对其进行校正,得出较为可靠的地层压力,解决了该气田测试地层压力异常的疑惑,解决了地层压力异常的难题。

关键词：凝析气田压力恢复试井压力降落试井井间干扰循环注气

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Stereoselective Synthesis of (±) Neocnidilide

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Chinese Chemical Letters 2003年第2期14卷 127-129页

作者： xiao Zhen jiao Ping XIE 等 InstituteofMateriaMedica ChineseAcademyofMedicalSciences&PckingUnivonMedicalCollegeBeijing100050 InstituteofMateriaMedica ChineseAcademyofMedicalSciences&PckingUnivonMedical

The racemic neocnidilide has been synthesized by stereoselective reaction of hemiacetal 5 with n-BuMgBr.

关键词： Neocnidilide stereoselective synthesis.

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Prochlorococcus viruses—From biodiversity to biogeochemical cycles

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Science China Earth Sciences 2018年第12期61卷 1728-1736页

作者： Xilin xiao Qinglu ZENG Rui ZHANG Nianzhi jiao State Key Laboratory of Marine Environmental Science College of Ocean & Earth Sciences Institute of Marine Microbes and EcospheresXiamen University Department of Ocean Science and Division of Life Science Hong Kong University of Science and Technology

As the dominant primary producer in oligotrophic oceans, the unicellular picocyanobacterium Prochlorococcus is the smallest and most abundant photosynthetic phytoplankton in the world and plays an important role in marine carbon *** that infect Prochlorococcus influence the growth, carbon fixation, diversity, evolution, and environmental adaptation of their hosts. Here, we review studies on the isolation, genomics, and phylogenetic diversity of Prochlorococcus viruses and their interactions with Prochlorococcus. We also review the potential effects of Prochlorococcus viruses on biogeochemical cycling in the ocean.

关键词： Prochlorococcus viruses Diversity Genomics Biogeochemical significance

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Novel serpentine structure design method considering confidence level and estimation precision

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第3期14卷 222-234页

作者： Li-sheng CHEN xiao-hua LUO jiao-jiao ZHU Fan-chao JIE xiao-lang YAN Institute of VLSI Design Zhejiang University

Due to the importance of metal layers in the product yield,serpentine test structures are usually fabricated on test chips to extract parameters for yield *** this paper,the confidence level and estimation precision of the average defect density on metal layers are investigated to minimize the randomness of experimental results and make the measured parameters more *** the basis of the Poisson yield model,the method to determine the total area of all serpentine test structures is obtained using the law of large numbers and the Lindeberg-Levy ***,the method to determine an adequate area of each serpentine test structure is proposed under a specific requirement of confidence level and estimation *** results of Monte Carlo simulation show that the proposed method is consistent with theoretical *** is also revealed by wafer experimental results that the method of designing serpentine test structure proposed in this paper has better performance.

关键词： Poisson yield model Serpentine test structure Critical area Average defect density Confidence level Estimation precision

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A Reverse Auction Framework for Hybrid Access in Femtocell Network

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Journal of Computer Science & Technology 2017年第6期32卷 1250-1264页

作者： Yan-jiao Chen xiao-Yan Yin Jin Zhang State Key Laboratory of Software Engineering School of Computer Wuhan University Wuhan 430072 China School of Information Science and Technology Northwest University Xi'an 710127 China Department of Computer Science and Engineering Southern University of Science and Technology Shenzhen 518055 China

In the two-tier macro-femto heterogeneous network, hybrid access is regarded as the most ideal access con- trol approach to mitigating macro-femto cross-tier interference and enhancing overall network performance. However, the implementation of hybrid access is hindered by a lack of incentive market mechanism to motivate private femtocell owners to offer access permissions to macro users. In this paper, we propose a reverse auction framework for access permission transaction between a macrocell operator and multiple femtocell owners to promote hybrid access. Our goal is to maximize social welfare while guaranteeing the truthfulness of the auction. Since the coverage of multiple femtocells may overlap, we partition each cell to adjust the granularity of access permission availability. We first propose a Vickery-Clarke-Grove （VCG）-based mechanism, which costs the least among all auction mechanisms that produce maximum social welfare. As the VCG mechanism is too time-consuming, we propose two alternative truthful mechanisms, namely, generalized second- price and suboptimal mechanism. We further extend the auction framework to the scenario where femtocell owners have heterogeneous valuations for access permissions in different locations.

关键词： femtocell hybrid access reverse auction

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