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A novel predictor of unsustained return of spontaneous circulation in cardiac arrest patients through a combination of capnography and pulse oximetry: a multicenter observational study

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World Journal of Emergency Medicine 2024年第1期15卷 16-22页

作者： Jing yang Hanqi Tang Shihuan Shao Feng Xu yangyang Fu Shengyong Xu Chen li Yan li yang liu Joseph harold Walline Huadong Zhu Yuguo Chen Xuezhong Yu Jun Xu Emergency Department State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Emergency Department Peking University People’s HospitalBeijing 100044China Department of Emergency and Chest Pain Center Shandong Provincial Clinical Research Center for Emergency and Critical Care MedicineKey Laboratory of Emergency and Critical Care Medicine of Shandong ProvinceQilu Hospital of Shandong UniversityJinan 250012China Emergency Department Beijing Jishuitan HospitalBeijing 100035China Emergency Department Tianjin Medical University General HospitalTianjin 300052China Department of Emergency Medicine Penn State Health Milton S.Hershey Medical Center and Penn State College of MedicineHershey 17033USA

BACKGrOUND:Unsustained return of spontaneous circulation(rOSC)is a critical barrier to survival in cardiac arrest *** study examined whether end-tidal carbon dioxide(ETCO_(2))and pulse oximetry photoplethysmogram(POP)parameters can be used to identify unsustained ***:We conducted a multicenter observational prospective cohort study of consecutive patients with cardiac arrest from 2013 to ***’general information,ETCO_(2),and POP parameters were collected and statistically ***:The included 105 rOSC episodes(from 80 cardiac arrest patients)comprised 51 sustained rOSC episodes and 54 unsustained rOSC *** 24-hour survival rate was significantly higher in the sustained rOSC group than in the unsustained rOSC group(29.2%vs.9.4%,Plogistic regression analysis showed that the difference between after and before rOSC in ETCO_(2)(ΔETCO_(2))and the difference between after and before rOCS in area under the curve of POP(ΔAUCp)were independently associated with sustained rOSC(odds ratio[Or]=0.931,95%confi dence interval[95%CI]0.881-0.984,P=0.011 and Or=0.998,95%CI 0.997-0.999,Prea under the receiver operating characteristic curve ofΔETCO_(2),ΔAUCp,and the combination of both to predict unsustained rOSC were 0.752(95%CI 0.660-0.844),0.883(95%CI 0.818-0.948),and 0.902(95%CI 0.842-0.962),***:Patients with unsustained rOSC have a poor *** combination ofΔETCO_(2) andΔAUCp showed signifi cant predictive value for unsustained rOSC.

关键词： return of spontaneous circulation Pulse oximetry photoplethysmogram End-tidal carbon dioxide Cardiac arrest Cardiopulmonary resuscitation

H_(2)mediated mixed culture microbial electrosynthesis for high titer acetate production from CO_(2)

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Environmental Science and Ecotechnology 2024年第3期19卷 125-131页

作者： Yanhong Bian Aaron leininger harold D.May Zhiyong Jason ren Department of Civil and Environmental Engineering Princeton University86 Olden StPrincetonNJ08544United States Andlinger Center for Energy and the Environment Princeton University86 Olden St.PrincetonNJ08544United States

Microbial electrosynthesis(MES)converts CO_(2)into value-added products such as volatile fatty acids(VFAs)with minimal energy use,but low production titer has limited scale-up and *** electron transfer via H_(2)on the MES cathode has shown a higher conversion rate than the direct biofilm-based approach,as it is tunable via cathode potential control and accelerates electrosynthesis from CO_(2).Here we report high acetate titers can be achieved via improved in situ H_(2)supply by nickel foam decorated carbon felt cathode in mixed community MES *** concentration of 12.5 g l^(-1)was observed in 14 days with nickel-carbon cathode at a poised potential of-0.89 V(*** hydrogen electrode,SHE),which was much higher than cathodes using stainless steel(5.2 g l^(-1))or carbon felt alone(1.7 g l^(-1))with the same projected surface area.A higher acetate concentration of 16.0 g l^(-1)in the cathode was achieved over long-term operation for 32 days,but crossover was observed in batch operation,as additional acetate(5.8 g l^(-1))was also found in the abiotic anode *** observed the low Faradaic efficiencies in acetate production,attributed to partial H_(2)utilization for *** selective acetate production with high titer demonstrated in this study shows the H_(2)-mediated electron transfer with common cathode materials carries good promise in MES development.

关键词： Microbial electrosynthesis Indirect electron transfer CO_(2)electrolysis VFAs production

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隐世私邸长沙柏悦酒店

室内设计与装修 2024年第11期 44-50页

作者： [英国]Conran and Partners harold de Puymorin(摄影) Conran and Partners

长沙柏悦酒店坐落于长沙国金中心(IFS)T2塔楼的顶部,这里是长沙最富活力的高端商业综合体。艺术与设计酒店由英国的建筑与室内设计公司Conran and Partners设计,其设计理念源起于一座品位卓然的女性环球旅行家所拥有的时尚府邸。

关键词：商业综合体建筑与室内设计环球旅行酒店艺术与设计设计理念塔楼

Numerical Analysis of Nozzle Clearance's Effect on Turbine Performance

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Chinese Journal of Mechanical Engineering 2011年第4期24卷 618-625页

作者： HU liangjun yang Ce SUN harold ZHANG Jizhong lAI Mingchia School of Mechanical Engineering Beijing Institute of Technology Beijing 100081 China FordMotor Company Michigan 48124 USA National Key laboratory of Diesel Engine Turbocharging Technology Datong 037036 China Wayne State University Michigan 48122 USA

Variable nozzle turbine （VNT） has become a popular variable geometry turbine （VGT） technology for the diesel engine application. Nozzle clearance, which can＇t be avoided on the hub and shroud side of the VNT turbine due to the pivoting stators, can lead to turbine performance deterioration. However, its mechanism is still not clear. In this paper, numerical investigation, which is validated by experiment, is carried out to study the mechanism of the nozzle clearance＇s effect on the turbine performance. Firstly, performance of the mixed flow turbine with fixed nozzle clearances tested on flow bench. Performance of the tested turbine with the same nozzle clearance is numerically simulated. The numerical result agrees well with the test data, which proves correct of the numerical method. Then the turbine performance with different nozzle clearances is numerically analyzed. The research showed that with nozzle clearance, flow loss in the nozzle increases at first and it reaches the maximum value when the clearance ratio is 5%. Flow at the exit of the nozzle becomes less uniform with nozzle clearance. The negative incidence angle of the rotor also increases with nozzle clearance and leads to more incidence angle loss in the rotor. The low energy fluid formed in the nozzle due to the nozzle clearance migrates from hub to shroud side in the rotor, which is another main reason for the rotor＇s performance degradation. The present research exposed the mechanism of the dramatically decrease of the turbine performance with nozzle clearance：（a） The loss associated with the nozzle leakage increases with the nozzle clearance; （b） The flow loss grows up quickly in the rotor due to the incidence angle loss and migration of the low energy fluid from hub to shroud side.

关键词： nozzle clearance variable nozzle turbine (VNT) mixed flow turbine

Treatment of hyperkalemic emergencies

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World Journal of Emergency Medicine 2022年第3期13卷 232-236页

作者： Yao Wu yang-yang Fu Hua-dong Zhu Jun Xu Joseph harold Walline Emergency Department State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Centre for the Humanities and Medicine the University of Hong KongHong KongChina

Hyperkalemic emergency(HE)refers to life-threatening hyperkalemia consisting of a high serum potassium level with severe complications(e.g.,dysrhythmias,cardiac arrest,or myopathy).^([1])Hyperkalemic emergencies(HEs)a... 详细信息

关键词： cardiac potassium arrest

role of seed size, phenology, oogenesis and host distribution in the specificity and genetic structure of seed weevils (Curculio spp.) in mixed forests

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Integrative Zoology 2018年第3期13卷 267-279页

作者： harold ArIAS-lEClAIrE raúl BONAl Daniel GArCÍA-lÓPEZ Josep Maria ESPElTA CrEAF Centre for Ecological Research and Forestry ApplicationsCerdanyola del Vallès08193Spain Exact and Natural Sciences School State Distance University of Costa RicaUNEDMercedes de Montes de OcaSan JoséCosta Rica Forest research Group INDEHESAUniversity of ExtremaduraPlasenciaSpain DITEG research Group University of Castilla-La ManchaToledoSpain Zoology Department Autonomous University of BarcelonaCerdanyola del VallèsSpain

Synchrony between seed growth and oogenesis is suggested to largely shape trophic breadth of seed-feeding insects and ultimately to contribute to their co-existence by means of resource partitioning or in the time when infestation *** we investigated:(i)the role of seed phenology and sexual maturation of females in the host specificity of seed-feeding weevils(Curculio spp.)predating in hazel and oak mixed forests;and(ii)the consequences that trophic breadth and host distribution have in the genetic structure of the weevil *** analyses were used to establish unequivocally host specificity and to determine the population genetic *** identified 4 species with different specificity,namely Curculio nucum females matured earlier and infested a unique host(hazelnuts,Corylus avellana)while 3 species(Curculio venosus,Curculio glandium and Curculio elephas)predated upon the acorns of the 2 oaks(Quercus ilex and Quercus pubescens).The high specificity of *** coupled with a more discontinuous distribution of hazel trees resulted in a significant genetic structure among *** addition,the presence of an excess of local rare haplotypes indicated that *** populations went through genetic expansion after recent ***,these effects were not observed in the more generalist Curculio glandium predating upon ***,co-existence of weevil species in this multi-host-parasite system is influenced by both resource and time *** what extent the restriction in gene flow among *** populations may have negative consequences for their persistence in a time of increasing disturbances(*** in Mediterranean areas)deserves further research.

关键词： Corylus avellana Curculio spp. genetic structure Quercus spp. trophic breadth

Blockchain-Based System for Secure and Efficient Cross-Border remittances: A Potential Alternative to SWIFT

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Journal of Software Engineering and Applications 2024年第8期17卷 664-712页

作者： Omoshola S. Owolabi Emmanuel Hinneh Prince C. Uche Nathaniel T. Adeniken Jennifer A. Ohaegbulem Samuel Attakorah Oluwabukola G. Emi-Johnson Chinaza S. Belolisa harold Nwariaku Department of Data Science Carolina University Winston Salem NC USA Patterson School of Business Carolina University Winston Salem NC USA Department of Statistical Sciences Wake Forest University Winston Salem NC USA Department of Computer Science Fisk University Nashville TN USA harold & Co Procurement and Supply Chain Consulting Lagos Nigeria

This paper proposes a blockchain-based system as a secure, efficient, and cost-effective alternative to SWIFT for cross-border remittances. The current SWIFT system faces challenges, including slow settlement times, high transaction costs, and vulnerability to fraud. leveraging blockchain technology’s decentralized, transparent, and immutable nature, the proposed system aims to address these limitations. Key features include modular architecture, implementation of microservices, and advanced cryptographic protocols. The system incorporates Proof of Stake consensus with BlS signatures, smart contract execution with dynamic pricing, and a decentralized oracle network for currency conversion. A sophisticated risk-based authentication system utilizes Bayesian networks and machine learning for enhanced security. Mathematical models are presented for critical components, including transaction validation, currency conversion, and regulatory compliance. Simulations demonstrate potential improvements in transaction speed and costs. However, challenges such as regulatory hurdles, user adoption, scalability, and integration with legacy systems must be addressed. The paper provides a comparative analysis between the proposed blockchain system and SWIFT, highlighting advantages in transaction speed, costs, and security. Mitigation strategies are proposed for key challenges. recommendations are made for further research into scaling solutions, regulatory frameworks, and user-centric designs. The adoption of blockchain-based remittances could significantly impact the financial sector, potentially disrupting traditional models and promoting financial inclusion in underserved markets. However, successful implementation will require collaboration between blockchain innovators, financial institutions, and regulators to create an enabling environment for this transformative system.

关键词： Interoperability Tokens AMl/KYC Compliance Peer-to-Peer Transfers Financial Inclusion

revision of failed transoral incisionless fundoplication by subsequent laparoscopic Nissen fundoplication

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World Journal of Gastroenterology 2014年第45期20卷 17115-17119页

作者： Awais Ashfaq Hyun K (Daniel) rhee Kristi l harold Department of Surgery Mayo Clinic Phoenix AZ 85054 United States

AIM: To evaluate the feasibility and outcomes of laparoscopic Nissen fundoplication after failed transoral incisionless fundoplication (TIF).

关键词： Transoral incisionless fundoplication laparascopic Nissen fundoplication laparoscopy Gastroesophageal reflux disease Surgical complications

First‐mode of negative streamers:Inception at liquid/solid interfaces

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High Voltage 2021年第6期6卷 1069-1078页

作者： David Ariza Abderrahmane Beroual ralf Methling Sergey Gortschakow harold r.Chamorro School of Electrical Engineering KTH Royal Institute of TechnologyStockholmSweden Ecole Centrale de‐lyon Ampère CNRS UMR 5005EcullyFrance leibniz Institute for Plasma Science and Technology INP GreifswaldGermany

An experimental study of the inception of the first‐mode negative streamer at liquid/solid interfaces is presented in this *** study is performed with a point‐plane configuration under square high voltage *** electrode configuration is immersed in mineral oil and the liquid/solid interface is assembled in contact with the point electrode or in its *** polymers and two impregnated papers have been tested as solids of the liquid/solid ***,it is possible to compare the influence of different parameter of the solid and the interface on the streamer *** example:Permittivity,solid surface roughness,chemical composition,*** has been observed that streamer inception voltages at interfaces with solids of higher permittivity to that of the mineral oil are statistically ***,streamer inception voltages of streamer initiated free in the oil(no liquid/solid interface)are similar to that of the inception voltage of cases with solids with high *** contrast,the inception voltage of streamers initiated at permittivity matched interfaces are shown to be highest of the *** streamer inception voltage is also studied for different distances be-tween the liquid/solid interface and the point electrode with a permittivity matched *** results show a dependency of the inception voltage and the distance be-tween the point electrode and the ***,an analysis of the observation is performed to show that the Townsend‐Meek criterion cannot predict the obtained results.

关键词： solid liquid electrode