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Infectious causes of fever of unknown origin in developing countries: An international id-IRI study

Journal of Intensive Medicine 2024年第1期4卷 94-100页

作者： Hakan Erdem Jaffar AAl-Tawfiq Maha Abid Wissal ben Yahia George Akafity Manar Ezzelarab Ramadan Fatma Amer Amani El-Kholy Atousa Hakamifard Bilal Ahmad Rahimi Farouq Dayyab Hulya Caskurlu Reham Khedr Muhammad Tahir Lysien Zambrano Mumtaz ali Khan Aun Raza Nagwa Mostafa El-Sayed Magdalena Baymakova Aysun Yalci Yasemin Cag Umran Elbahr Aamer Ikram Department of Infectious Diseases&Clinical Microbiology Gulhane School of MedicineTurkish Health Sciences UniversityAnkaraTurkey Specialty Internal Medicine and Quality and Patient Safety Department Johns Hopkins Aramco HealthcareDhahranSaudi Arabia Division of Infectious Diseases Indiana University School of MedicineIndianapolisINUSA Department of Infectious Diseases Farhat Hached University HospitalIbn El Jazzar Medical SchoolUniversity of SousseSousseTunisia Internal Medicine Department Farhat Hached University HospitalIbn El Jazzar Medical SchoolUniversity of SousseSousseTunisia Cape Coast Teaching Hospital Cape CoastGhana Medical Parasitology Faculty of MedicineSuez UniversitySuezEgypt Department of Medical Microbiology and Immunology Faculty of MedicineZagazig UniversityZagazigEgypt Department of Clinical Pathology Faculty of MedicineCairo UniversityGizaEgypt Department of Infectious Diseases School of MedicineIsfahan University of Medical SciencesIsfahanIran Department of Infectious Diseases Kandahar University Medical FacultyTeaching HospitalKandaharAfghanistan Department of Infectious Diseases Mohammed Bn Khalifa Bn Salman Alkhalifa Specialist Cardiac CenterAwaliBahrain Department of Infectious Diseases and Clinical Microbiology Faculty of MedicineIstanbul Medeniyet UniversityIstanbulTurkey Department of Pediatric Oncology National Cancer Institute–Cairo UniversityChildren Cancer Hospital EgyptCairoEgypt Department of Medicine Federal General HospitalIslamabadPakistan Institute for Research in Medical Sciences and Right to Health(ICIMEDES) Scientific Research Unit(UIC)Faculty of Medical Sciences(FCM)National Autonomous University of Honduras(UNAH)TegucigalpaHonduras National Institute of Health IslamabadPakistan Shaukat Khanum Memorial Cancer Hospital and Research Center LahorePakistan Medical Parasitology Department Research Institute of OphthalmologyGizaEgypt Department of Infectious Diseases Military Medical AcademySofiaBulgaria Department of Infecti

Background:Fever of unknown origin(FUO)in developing countries is an important dilemma and further research is needed to elucidate the infectious causes of ***:A multi-center study for infectious causes of FUO in lower middle-income countries(LMIC)and lowincome countries(LIC)was conducted between January 1,2018 and January 1,*** total,15 participating centers from seven different countries provided the data,which were collected through the Infectious DiseasesInternational Research Initiative *** adult patients with confirmed infection as the cause of FUO were included in the *** severity parameters were quick Sequential Organ Failure Assessment(qSOFA)≥2,intensive care unit(ICU)admission,vasopressor use,and invasive mechanical ventilation(IMV).Results:A total of 160 patients with infectious FUO were included in the ***,148(92.5%)patients had community-acquired infections and 12(7.5%)had hospital-acquired *** most common infectious syndromes were tuberculosis(TB)(n=27,16.9%),infective endocarditis(n=25,15.6%),malaria(n=21,13.1%),brucellosis(n=15,9.4%),and typhoid fever(n=9,5.6%).Plasmodium falciparum,Mycobacterium tuberculosis,Brucellae,Staphylococcus aureus,Salmonella typhi,and Rickettsiae were the leading infectious agents in this study.A total of 56(35.0%)cases had invasive procedures for *** mean qSOFA score was 0.76±0.94{median(interquartile range[IQR]):0(0–1)}.ICU admission(n=26,16.2%),vasopressor use(n=14,8.8%),and IMV(n=10,6.3%)were not ***,38(23.8%)patients had at least one of the severity *** mortality rate was 15(9.4%),and the mortality was attributable to the infection causing FUO in 12(7.5%)***:In LMIC and LIC,tuberculosis and cardiac infections were the most severe and the leading infections causing FUO.

关键词： Developing countries Fever of unknown origin Infection

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吹扫-捕集气相色谱检测地表水有机化合物的方法

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合成纤维 2024年第1期53卷 61-65页

作者：李本凯鲁西科安特种设备检测有限公司山东聊城252000

随着水污染事件频发,地表水中的有机化合物含量激增,现行的检测方法无法满足多种化合物的检测需求。因此,提出基于吹扫-捕集气相色谱的地表水中有机化合物的检测方法。通过多轮有机化合物检测,确定此方法的应用条件,并得到良好的应用效... 详细信息

随着水污染事件频发,地表水中的有机化合物含量激增,现行的检测方法无法满足多种化合物的检测需求。因此,提出基于吹扫-捕集气相色谱的地表水中有机化合物的检测方法。通过多轮有机化合物检测,确定此方法的应用条件,并得到良好的应用效果。试验结果得出最佳检测条件为:吹扫速度25 mL/min;吹扫时间10 min,如有机物沸点较高可放宽至14 min;解析温度200℃;解析时间2.5 min,如有机物沸点较高可放宽至4 min。此方法检出限、准确度与精密度均较高,且操作简单,经济性强。

关键词：吹扫-捕集气相色谱有机化合物检测

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The differential benefit of laparoscopic over open minor liver resection for lesions situated in the anterolateral or posterosuperior segments

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Hepatobiliary Surgery and Nutrition 2024年第4期13卷 604-615,I0015-I0021页

作者： Jasper P.Sijberden Guido Fiorentini Jacopo Lanari Davit Aghayan Daniel Osei-Bordom Nadia Russolillo Arjun Takhar Andrea benedetti Cacciaguerra Santi Lopez-ben Mathieu D’Hondt Felice Giuliante David Fuks Fernando Rotellar Andrea Ruzzenente Adnan Alseidi Mikhail Efanov Burak Görgec Giuseppe Zimmitti Enrico Gringeri Federica Cipriani Åsmund Avdem Fretland Ravi Marudanayagam Marco Vivarelli John N.Primrose Alessandro Ferrero Robert P.Sutcliffe Bjørn Edwin Umberto Cillo Marc G.Besselink Mohammad Abu Hilal Luca A.Aldrighetti Department of Surgery Fondazione Poliambulanza Istituto OspedalieroBresciaItaly Amsterdam UMC location University of Amsterdam Department of SurgeryAmsterdamthe Netherlands Cancer Center Amsterdam Amsterdamthe Netherlands Hepatobiliary Surgery Division IRCCS San Raffaele HospitalMilanItaly Department of Surgical Oncological and Gastroenterological SciencesGeneral Surgery 2Hepatobiliary Surgery and Liver TransplantationPadua University HospitalPaduaItaly The Intervention Centre and Department of HPB Surgery Oslo University Hospital and Institute of Clinical MedicineUniversity of OsloOsloNorway Department of Surgery Ringerike HospitalVestre Viken Hospital TrustDrammenNorway Liver Unit Queen Elizabeth HospitalBirminghamUK Department of General and Oncological Surgery Umberto I Mauriziano HospitalLargo TuratiTurinItaly Department of Surgery University Hospital Southampton NHS Foundation TrustSouthamptonUK Hepatobiliary and Abdominal Transplantation Surgery Department of Experimental and Clinical MedicineRiuniti HospitalPolytechnic University of MarcheAnconaItaly Servei de Cirurgia General i Digestiva Hospital Doctor Josep Trueta de GironaGironaCataloniaSpain Department of Digestive and Hepatobiliary/Pancreatic Surgery Groeninge HospitalKortrijkBelgium Chirurgia Epatobiliare UniversitàCattolica del Sacro Cuore-IRCCSRomeItaly Department of Digestive Oncologic and Metabolic SurgeryInstitut Mutualiste MontsourisUniversitéParis DescartesParisFrance HPB and Liver Transplantation Unit Department of SurgeryUniversity ClinicUniversidad de NavarraNavarraSpain Institute of Health Research of Navarra(idisNA) PamplonaSpain Department of Surgery University of VeronaVeronaItaly Department of Surgery Virginia Mason Medical CenterSeattleWAUSA Department of Surgery University of California San FranciscoSan FranciscoCAUSA Department of Hepato-Pancreato-Biliary Surgery Moscow Clinical Research CentreMoscowRussia

Background:It is well known that laparoscopic liver surgery can offer advantages over open liver surgery in selected ***,what type of procedures can benefit most from a laparoscopic approach has been investigated poorly thus *** aim of this study is thus to define the extent of advantages of laparoscopic over open liver surgery for lesions in the anterolateral(AL)and posterosuperior(PS)***:In this international multicentre retrospective cohort study,laparoscopic and open minor liver resections for lesions in the AL and PS segments were compared after propensity score *** differential benefit of laparoscopy over open liver surgery,calculated using bootstrap sampling,was compared between AL and PS resections and expressed as a Delta of the ***:After matching,3,040 AL and 2,336 PS resections were compared,encompassing open and laparoscopic procedures in a 1:1 *** and PS laparoscopic liver resections were more advantageous in comparison to open in terms of blood loss,transfusion rate,complications,and length of ***,AL resections benefitted more from laparoscopy than PS in terms of overall and severe complications(D-difference were 4.8%,P=0.046 and 3%,P=0.046)and blood loss(D-difference was 195 mL,Pbenefit between AL and PS ***:The advantage of laparoscopic over open liver surgery is greater in the AL segments than in the PS segments.

关键词： Liver neoplasms hepatectomy laparoscopic liver resection open liver resection

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双向视ICP-OES法同时测定褐煤中锗和一些主要成灰元素

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光谱学与光谱分析 2005年第9期25卷 1496-1499页

作者：邹本东敖登高娃尚洪山其鲁内蒙古大学化学化工学院内蒙古呼和浩特010021 北京大学化学与分子工程学院北京100871

描述了ICPOES(高频电感耦合等离子体光学发射光谱)同时测定褐煤中Ge和一些主要成灰元素Fe,Al,Ca,Mg,K,Na,Ti的方法。所使用的仪器是一台安装有双向视等离子体炬管和一个同时检测器的ICP光谱仪,这种技术允许分别在侧视和端视方式下同时... 详细信息

描述了ICPOES(高频电感耦合等离子体光学发射光谱)同时测定褐煤中Ge和一些主要成灰元素Fe,Al,Ca,Mg,K,Na,Ti的方法。所使用的仪器是一台安装有双向视等离子体炬管和一个同时检测器的ICP光谱仪,这种技术允许分别在侧视和端视方式下同时测定主成分和微量元素。作者选取了适宜的仪器工作条件、选择了无干扰的分析谱线和合理地扣除了光谱背景,样品灰化后用HNO3/HF/HClO4混合酸消解,测定结果与国标方法吻合。仪器的检出限为0.00039～0.10μg·mL-1,方法的精密度RSD为0.79%～2.84%,样品平均回收率为92.38%。建立的方法可简便、快速、准确地对褐煤中锗及其他多种元素同时进行测定。

关键词： ICP-OES 褐煤锗成灰元素

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氧调节原生负极-固态电解质界面层助力高稳定性固态钠金属电池

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Science Bulletin 2024年第1期69卷 49-58页

作者：曹克爽夏宇凡李皓盛黄慧琴 Sikandar Iqbal Muhammad Yousaf 徐斌孙文平严密潘洪革姜银珠 School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China Mechanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle upon Tyne NE18STUK Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021China State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030China

Solid-state sodium metal batteries utilizing inorganic solid electrolytes(SEs)hold immense potentials such as intrinsical safety,high energy density,and environmental ***,the interfacial inhomogeneity/instability at the anode-SE interface usually triggers the penetration of sodium dendrites into the electrolyte,leading to short circuit and battery ***,confronting with the original nonuniform and high-resistance solid electrolyte interphase(SEI)at the Na-Na_(3)Zr_(2)Si_(2)PO_(12)interface,an oxygen-regulated SEI innovative approach is proposed to enhance the cycling stability of anode-SEs interface,through a spontaneous reaction between the metallic sodium(containing trace amounts of oxygen)and the Na_(3)Zr_(2)Si_(2)POi_(2)*** oxygen-regulated spontaneous SEI is thin,uniform,and kinetically stable to facilitate homogenous interfacial Na^+transportation,benefitting from the optimized SEI,the assembled symmetric cell exhibits an ultra-stable sodium plating/stripping cycle for over 6600 h under a practical capacity of 3 mAh cm^(-2).Qua si-sol id-state batteries with Na_(3)V_(2)(PO_(4))_(3)cathode deliver excellent cyclability over 500 cycles at a rate of 0.5 C(1 C=117 mA cm^(-2))with a high capacity retention of95.4%.This oxygen-regulated SEI strategy may offer a potential avenue for the future development of high-energy-density solid-state metal batteries.

关键词： Na metal anode Solid-state batteries NaSICON Anode interface Solid electrolyte interphase

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A combination of climate,tree diversity and local human disturbance determine the stability of dry Afromontane forests

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Forest Ecosystems 2021年第2期8卷 207-222页

作者： Hadgu Hishe Louis Oosterlynck Kidane Giday wanda De Keersmaecker ben Somers Bart Muys KU Leuven Department of Earth and Environmental SciencesDivision ForestNature and LandscapeCelestijnenlaan 200EP.O.Box 24113001 LeuvenBelgium Department of Land Resource Management and Environmental Protection Mekelle UniversityCollege of Dryland Agriculture and Natural ResourcesP.O.Box 231MekelleTigrayEthiopia Laboratory of Geo-Information Science and Remote Sensing Wageningen University6708 PB WageningenThe Netherlands

Background:Anthropogenic disturbances are increasingly affecting the vitality of tropical dry *** future condition of this important biome will depend on its capability to resist and recover from these *** far,the temporal stability of dryland forests is rarely studied,even though identifying the important factors associated with the stability of the dryland forests could serve as a basis for forest management and ***:In a degraded dry Afromontane forest in northern Ethiopia,we explored remote sensing derived indicators of forest stability,using MODIS satellite derived NDVI time series from 2001 to *** and resistance were measured using the anomalies(remainders)after time series decomposition into seasonality,trend and remainder *** stability was calculated using the integral of the undecomposed NDVI *** NDVI derived stability indicators were then related to environmental factors of climate,topography,soil,tree species diversity,and local human disturbance,obtained from a systematic grid of field inventory plots,using boosted regression trees in ***:Resilience and resistance were adequately predicted by these factors with an R^(2) of 0.67 and 0.48,respectively,but the model for growth stability was *** of the wettest month,distance from settlements and slope were the most important factors associated with resilience,explaining 51%of the ***,temperature seasonality and humus accumulation were the significant factors associated with the resistance of the forest,explaining 61%of the overall effect.A positive effect of tree diversity on resilience was also important,except that the impact of species evenness declined above a threshold value of 0.70,indicating that perfect evenness reduced the resilience of the *** of the wettest month was the most important factor explaining 43.52%of the growth stability ***:A combination of clima

关键词： Climate Dryland Disturbance Restoration Tigray Growth stability Biodiversity function

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自组装制备铁质文物保护用纳米缓蚀颗粒

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功能材料 2012年第12期43卷 1637-1639,1642页

作者：何本桥李亭亭张桐阳沈大娲天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地天津300160 中国文化遗产研究院北京100029

长效缓蚀材料对于铁质文物的长期保护有着至关重要的作用。通过层层自组装的方法,在带负电荷的SiO2胶粒表面交替组装上了带正电荷的聚乙烯亚胺(PEI)层,带负电荷的聚苯乙烯磺酸钠(PSS)层,以及带正电荷的缓蚀活性成分苯并三氮唑(BTA)层。... 详细信息

长效缓蚀材料对于铁质文物的长期保护有着至关重要的作用。通过层层自组装的方法,在带负电荷的SiO2胶粒表面交替组装上了带正电荷的聚乙烯亚胺(PEI)层,带负电荷的聚苯乙烯磺酸钠(PSS)层,以及带正电荷的缓蚀活性成分苯并三氮唑(BTA)层。利用透射电子显微镜、zeta电位仪、X射线光电子能谱仪(XPS)等对纳米缓蚀颗粒进行了表征。结果表明,随着组装过程的进行,胶体粒子尺寸依次增大,颗粒表面zeta电位出现负正交替变化,表面元素化学环境也随之改变,氮原子的结合能随静电作用的增强向高位移动。缓蚀剂的负载量可通过多层组装方式提高,BTA单层负载量可达到35.4mg/g SiO2。

关键词：纳米缓蚀颗粒苯并三氮唑金属保护静电自组装

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基于改进CStrack关联策略的多目标跟踪算法

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无线电工程 2024年第3期54卷 597-606页

作者：苏佳冯康康孟俊彤梁奔张明河北科技大学信息科学与工程学院河北石家庄050018

针对复杂场景下目标外观变化明显、运动不规律易导致轨迹中断和身份切换频繁等问题,从重识别(Re-identification,Re-id)特征、数据关联和插值等方面对跟踪器进行改进,提出基于改进CStrack关联策略的多目标跟踪算法。使用外观特征更新模... 详细信息

针对复杂场景下目标外观变化明显、运动不规律易导致轨迹中断和身份切换频繁等问题,从重识别(Re-identification,Re-id)特征、数据关联和插值等方面对跟踪器进行改进,提出基于改进CStrack关联策略的多目标跟踪算法。使用外观特征更新模块,减小因视角改变、目标移动导致特征剧烈变化而产生的影响,增强特征间的关联。提出二次关联方法,根据高低置信度检测结果的特点,使用不同的度量方式进行二次关联:第一次关联使用IoU距离融合外观特征作为关联的代价矩阵,第二次使用扩展IoU关联,缓解运动估计偏差、外观不可区分导致度量失效的问题;采用高斯回归算法,考虑运动信息,通过插值补偿漏检。在MOT17、MOT20数据集上进行测试,跟踪精度分别达到73.9%、64.2%。实验结果表明,该方法在跟踪精度上有明显优势,能够较好地适应复杂场景。

关键词：多目标跟踪 CStrack 重识别数据关联

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Shift Endpoint Trace Selection Algorithm and wavelet Analysis to Detect the Endpoint Using Optical Emission Spectroscopy

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Photonic Sensors 2016年第2期6卷 158-168页

作者： Sihem ben ZAKOUR Hassen TALEB Higher Institute of Management Tunis University of Tunis Tunisia Higher institute of Business and Accounting Bizerte University of Carthage Tunisia

Endpoint detection （EPD） is very important undertaking on the side of getting a good understanding and figuring out if a plasma etching process is done on the right way. It is truly a crucial part of supplying repeatable effects in every single wafer. When the film to be etched has been completely erased, the endpoint is reached. In order to ensure the desired device performance on the produced integrated circuit, many sensors are used to detect the endpoint, such as the optical, electrical, acoustical/vibrational, thermal, and frictional. But, except the optical sensor, the other ones show their weaknesses due to the environmental conditions which affect the exactness of reaching endpoint. Unfortunately, some exposed area to the film to be etched is very low （〈0.5%）, reflecting low signal and showing the incapacity of the traditional endpoint detection method to determine the wind-up of the etch process. This work has provided a means to improve the endpoint detection sensitivity by collecting a huge numbers of full spectral data containing 1201 spectra for each run, then a new unsophisticated algorithm is proposed to select the important endpoint traces named shift endpoint trace selection （SETS）. Then, a sensitivity analysis of linear methods named principal component analysis （PCA） and factor analysis （FA）, and the nonlinear method called wavelet analysis （wa） for both approximation and details will be studied to compare performances of the methods mentioned above. The signal to noise ratio （SNR） is not only computed based on the main etch （ME） period but also the over etch （OE） period. Moreover, a new unused statistic for EPD, coefficient of variation （CV）, is proposed to reach the endpoint in plasma etches process.

关键词： Dimension reduction OES plasma etching process wavelet analysis CV SNR

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Chromite-induced magnesium isotope fractionation during mafic magma differentiation

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Science Bulletin 2017年第22期62卷 1538-1546页

作者： ben-Xun Su Yan Hu Fang-Zhen Teng Ke-Zhang Qin Yang Bai Patrick Asamoah Sakyi Dong-Mei Tang Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of SdencesBeijing 100029China Department of Earth and Space Sciences University of WashingtonSeattleWA 98195USA University of Chinese Academy of Sciences Beijing 100049China Department of Earth Science University of GhanaLegonAccra LG SGhana

To better understand the mechanism of Mg isotopic variation in magma systems, here we report high precision Mg isotopic data of 17 bulk rock samples including dunite, clinopyroxenite, hornblendite and gabbro and 10 pairs of dunite-hosted olivine and chromite separates from the well-characterized Alaskan-type Xiadong intrusion in NW China, which formed by continuous and high degree of lithological differentiation from mafic magmas. Chromite separates have highly variable δ^(26)Mg values from -0.10‰ to 0.40‰, and are consistently heavier than coexisting olivine separates(-0.39‰ to -0.15 T‰). Both mineral δ^(26)Mg values and the degrees of inter-mineral fractionation are well correlated with geochemical indicators of magma differentiation, indicating that these inter-sample and inter-mineral Mg isotope fractionations are caused by magma evolution. The δ^(26)Mg values range from -0.20‰ to -0.02‰ in the dunite,-043‰ in the clinopyroxenite,-043‰ to -0.28‰ in the hornblendite, 0.18 T‰ in the chromite-bearing hornblendite, and -0.56 T‰ to -0.16‰ in the gabbro. The Mg isotopic variations in different types of rocks are closely related to fractional crystallization and accumulation of different proportions of oxides vs. silicates. Chromite crystallization and accumulation is the most important factor in controlling Mg isotope fractionation during the formation of the Xiadong intrusion. Compared to basaltic and granitic magmas, differentiation of the Alaskan-type intrusions occurs at a relatively high oxygen fugacity, which favors chromite crystallization and consequently significant Mg isotope fractionations at both mineral and whole-rock scales. Therefore, Mg isotope systematics can be used to trace the degree of magma differentiation and related-mineralization.

关键词： Mg isotopes Alaskan-type intrusion Arc magmatism Magma differentiation Chromite

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