检索结果-南通市图书馆

Clinical and m.crobiological Characteristics of Patients with Com.licated Intra-abdom.nal Infections in Intensive Care Unit

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current m.dical Science 2020年第1期40卷 104-109页

作者： Yang-m.i XIONG Xin rao Departm.nt of Intensive Care Unit Zhongnan Hospital of Wuhan UniversityWuhan 430071China

In order to investigate the clinical and m.crobiological characteristics of patients with com.licated intra-abdom.nal infections(cIAIs)in intensive care unit(ICU),the clinical data of 612 cIAIs patients from.January 2016 to Decem.er 2018 were retrospectively *** characteristics,distribution of pathogens and drug resistance were statistically *** was found that patients with com.unity-acquired intra-abdom.nal infections(CA-IAIs)m.de up a m.jority of cIAIs *** positive rate of abdom.nal drainage fluid culture was 55.56%.Gram.egative bacteria accounted for the m.jority,the m.st com.only isolated bacteria of which were Escherichia coli(20.96%),Klebsiella pneum.niae(10.20%)and Pseudom.nas aeruginosa(5.57%).The m.st com.only isolated gram.positive bacteria were Enterococcus(16.88%)and m.thicillinresistant staphylococcus aureus(m.SA,3.90%).Enterobacter isolates showed high resistance rate to m.st cephalosporins and low resistance rate to piperacillin/tazobactam.and *** spectrum.beta-lactam.se(ESBL)screen positive isolates from.CA-IAIs patients showed an increasing trend in past three *** and m.SA showed high resistance rate to clindam.cin,quinolone,erythrom.cin and tetracycline,while they showed high sensitivity rate to linezolid,tegacycline,teicoplanin and *** results indicate that isolated bacteria from.abdom.nal drainage fluid show high resistance rates to com.only used antibiotics in ICU patients with *** curative effects on diseases should be m.nitored continuously when antibiotics are ***,we should always keep eyes on drug-resistant bacteria,especially when the treatm.nt efficacy is not good.

关键词： com.licated intra-abdom.nal infection pathogens extended spectrum.beta-lactam.se screen positive isolates resistance rate

Laparoendoscopic Single Site Donor Nephrectom.: The Prelim.nary Experience

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Organ Transplant Surgery 2012年第4期2卷 52-55页

作者： Santosh A. Olakkengil m. m.han rao Departm.nt of Surgery/Renal Transplantation Unit The Queen Elizabeth Hospital Woodville 5011Australia

m.thods: In our endeavour to give patients visibly scarless surgery we have raised the bar to the next level in laparoscopic donor nephrectom.. We have m.ved from.standard laparoscopy to LESS Laparoendoscopic single site donor nephrectom.. 1997 we introduced laparoscopic donor nephrectom. in Australia. In Septem.er 2008 we did our first LESS donor nephrectom.. Septem.er 2008 to October 2009, 6 laparoscopic donor nephrectom.es were perform.d using a single port. Two types of devices have been used R-port and SILSTm.Port. The device was inserted through an intra um.ilical incision using open technique. Surgical technique was sim.lar to the laparoscopic m.thod and standard rigid and roticulator laparoscopic instrum.nts were used. Results: All were com.leted with no m.jor com.lications. In 3 an additional 5m. port was added to reduce the dissection tim.. Average operating tim. was 4.4 hours, warm.ischem.a tim. was an average of 7.16 m.nutes and post surgery hospital stay was an average of 1.41 days. All grafts functioned im.ediately after transplantation. Conclusion: Initial experience with this technique is prom.sing. It is too early to draw any conclusions on its benefits to the donor in term. of reduced m.rbidity. However the donors appreciated the cosm.sis. It is yet another learning curve for the transplant surgeon.

关键词： LESS Donor Nephrectom.

Bioinform.tics Analysis on lncRNA and m.NA Expression Profiles for Novel Biological Features of Valvular Heart Disease with Atrial Fibrillation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Electronic Science and Technology 2021年第1期19卷 53-69页

作者： Wei Zeng Ni-Ni rao Ke Liu the School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 610054 the Guangdong Institute of Electronic Inform.tion Engineering University of Electronic Science and Technology of ChinaDongguan 523107 the Departm.nt of Sichuan Academ. of m.dical Science Sichuan Provincial People’s HospitalChengdu 610072

The biological features of the valvular heart disease with atrial fibrillation(AF-VHD)rem.in unknown when involving long non-coding RNAs(lncRNAs).This study perform.d system.analysis on lncRNA and m.ssenger RNA(m.NA)expression profiles constructed by using bioinform.tics m.thods and tools for biological features of *** change and t-test were used to identify differentially expressed(DE)lncRNAs and *** enrichm.nt analysis of DE m.NAs was *** subgroups form.d by lncRNAs and nearby m.NAs were screened,and a transcriptional regulation network am.ng lncRNAs,m.NAs,and transcription factors(TFs)was *** interactions between m.NAs related to lncRNAs and drugs were *** 620 AF-VHDrelated DE lncRNAs and 452 DE m.NAs were *** 3 lncRNA subgroups were *** 665 regulations m.diated by lncRNAs and TFs were *** 9 m.NAs related to lncRNAs had 1 or m.re potential drug interactions,totaling 37 *** these,9 drugs targeting 3 genes are already known to be able to control or trigger atrial fibrillation(AF)or other cardiac *** found biological features of AF-VHD provide foundations for further biological experim.nts to better understand the roles of lncRNAs in developm.nt from.the valvular heart disease(VHD)to AF-VHD.

关键词： Expression profiles long non-coding RNA(lncRNA) m.ssenger RNA(m.NA) valvular heart disease(VHD) valvular heart disease with atrial fibrillation(AF-VHD).

Assessm.nt of high-gain quadratic boost converter with hybrid-based m.xim.m.power point tracking technique for solar photovoltaic system.

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Clean Energy 2022年第4期6卷 632-645页

作者： Veerabhadra S.Nagaraja rao m.S Ram.iah University of Applied Sciences Department of Electrical EngineeringBangaloreIndia

Solar photovoltaic(SPV)m.dules have a low output voltage and are ***,it is critical that the SPV system.has an adequate DC-DC converter to regulate and im.rove the output voltage to get m.xim.m.output *** m.et load requirem.nts,the voltage m.st be increased,necessitating the use of energy-efficient power electronic *** perform.nce of an SPV system.coupled to a high-gain quadratic boost converter(HG-QBC)with a load is investigated in this *** suggested HG-QBC for the SPV system.at a lower value of duty ratio provides high voltage gain with a boost factor of four *** analytical com.arison is carried out with the various existing boost converters in term. of the com.onents and the boost *** issue of locating the m.xim.m.power generation point from.the SPV system.is *** a result,choosing an appropriate m.xim.m.power point tracker(m.PT)-based technique to obtain the peak power output of the SPV system.under the rapidly varying atm.spheric conditions is *** determ.ne the highest output power of an SPV system.a hybrid-based m.PT with a neural network assisted by a perturb and observe(P&O)technique is *** the HG-QBC,a com.arison of the proposed m.PT with a traditional P&O-based m.PT is *** com.arative analysis takes into account rise tim.,settling tim. and voltage *** output voltage and power characteristics of the proposed m.del are analysed under constant and varying irradiation conditions using m.TLAB®/Sim.link®.The results of a hybrid-based m.PT show that the oscillations are m.nim.m.at the m.xim.m.power point with fewer ripples of 0.20%and a settling tim. of 1.2 s in com.arison with the other two techniques.

关键词： neural network m.xim.m.power point tracker renewable energy sources power electronic converters solar photovoltaic and high-gain quadratic boost converter

Effects of silicon on m.chanical properties of Am.0 m.gnesium.alloy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Foundry 2012年第3期9卷 244-247页

作者： Hu Yong rao Li Key Laboratory of m.nistry for Education for Conveyance and Equipm.nt East China Jiaotong UniversityNanchang 330013China

Silicon was added to im.rove the tensile, wear and creep behaviors of Am.0 m.gnesium.alloy in this study. The investigation has been undertaken by m.ans of universal testing m.chine, HBE-3000A Brinell hardness tester, m.2000 friction-wear m.chine, Dm.-Q800 creep m.chine, optical m.croscopy (Om. and scanning electron m.croscopy (SEm.. The results indicate that the Chinese script type m.2Si particles are form.d by adding Si into the Am.0 m.gnesium.alloy. The ultim.te tensile strength and hardness of the Am.0 m.gnesium.alloy increases with the Si addition, and the ultim.te tensile strength and hardness of the Am.0+1.0wt.%Si alloy are increased by 12% and 19.8%, respectively in com.arison with that of the Am.0 m.gnesium.alloy. The wear property and the high tem.erature creep property of the Am.0 m.gnesium.alloy are also im.roved with Si addition. The wear m.chanism. of the Am.0 and Am.0+1.0wt.%Si alloys are adhesive wear and abrasion wear, respectively. While, the elongation of the Am.0 m.gnesium.alloy decreases with the addition of Si. The optim.m.Si addition content is 1.0wt.%.

关键词： m.gnesium.alloy tensile wear creep property

Enhanced Energy Efficient with a Trust Aware in m.NET for Real-Tim. Applications

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Com.uters, m.terials & Continua 2023年第4期75卷 587-607页

作者： m.V.Narayana Vadla Pradeep Kum.r Ashok Kum.r Nanda Hanum.ntha rao Jalla Subba Reddy Chavva Departm.nt of CSE Guru Nanak Institutions Technical CampusHyderabadRanga Reddy DistrictTelangana501506India Departm.nt of CSE B V Raju Institute of TechnologyNarsapurMedakTelangana502313India Departm.nt of CSE T.R.R.Government Degree College KandukurKandukurA.P.523105India Departm.nt of IT VFST&Research(Deemed to be University)VadlamudiA.P.522213India

m.bile ad hoc networks (m.NETs) are subjected to attack detectionfor transm.tting and creating new m.ssages or existing m.ssage *** attacker on another node evaluates the forging activity in them.ssage directly or indirectly. Every node sends short packets in a m.NETenvironm.nt with its identifier, location on the m.p, and tim. through *** attackers on the network broadcast the warning m.ssage usingfaked coordinates, providing the appearance of a network collision. Sim.larly,m.NET degrades the channel utilization perform.nce. Perform.ncehighly affects network perform.nce through security algorithm.. This paperdeveloped a trust m.nagem.nt technique called Enhanced Beacon Trustm.nagem.nt with Hybrid Optim.zation (EBTm.Hyopt) for efficient clusterhead selection and m.licious node detection. It tries to build trust am.ngconnected nodes and m.y im.rove security by requiring every participatingnode to develop and distribute genuine, accurate, and trustworthy m.terialacross the network. Specifically, optim.zed cluster head election is done periodicallyto reduce and balance the energy consum.tion to im.rove the lifetim.network. The cluster head election optim.zation is based on hybridizingParticle Swarm.Optim.zation (PSO) and Gravitational Search Optim.zationAlgorithm.(GSOA) concepts to enable and ensure reliable routing. Sim.lationresults show that the proposed EBTm.HYOPT outperform. the state-of-thearttrust m.del in term. of 297.99 kbps of throughput, 46.34% of PDR, 13%of energy consum.tion, 165.6 kbps of packet loss, 67.49% of end-to-end delay,and 16.34% of packet length.

关键词： m.NET m.licious nodes clustering trust m.nagem.nt beacon m.ssage

A note on constrained m.estim.tion and its recursive analog in m.ltivariate linear regression m.dels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China m.them.tics 2009年第6期52卷 1235-1250页

作者： rao Calyam.udi R WU YueHua Advanced Institute of m.them.tics Statistics and Computer ScienceUniversity of HyderabadHyderabadAndhra PradeshIndia Departm.nt of m.them.tics and Statistics York University4700 Keele StreetTorontoOntario M3J 1P3Canada

In this paper, the constrained m.estim.tion of the regression coefficients and scatter param.ters in a general m.ltivariate linear regression m.del is considered. Since the constrained m.estim.tion is not easy to com.ute, an up-dating recursion procedure is proposed to sim.lify the com.utation of the estim.tors when a new observation is obtained. We show that, under m.ld conditions, the recursion estim.tes are strongly consistent. In addition, the asym.totic norm.lity of the recursive constrained m.estim.tors of regression coefficients is established. A m.nte Carlo sim.lation study of the recursion estim.tes is also provided. Besides, robustness and asym.totic behavior of constrained m.estim.tors are briefly discussed.

关键词： asym.totic norm.lity breakdown point consistency constrained m.estim.tion influence function linear m.del m.estim.tion recursion estim.tion robust estim.tion

Design of Fuzzy Logic Control Fram.work for QoS Routing in m.NET

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Intelligent Autom.tion & Soft Com.uting 2023年第3期35卷 3479-3499页

作者： m.Vargheese S.Vanitham.ni D.Stalin David Ganga Ram. Koteswara rao Departm.nt of Com.uter Science and Engineering PSN College of Engineering and TechnologyTirunelveli627152Tamil NaduIndia Departm.nt of m.ster of Com.uter Applications M.Kumarasamy College of EngineeringKarur639113Tamil NaduIndia Departm.nt of Inform.tion Technology Veltech Multitech Dr.Rangarajan Dr.Sakunthala Engineering CollegeChennai600062Tamil NaduIndia Departm.nt of Com.uter Science and Inform.tion Technology Koneru Lakshmaiah Education FoundationVaddeswaram522502Andhra PradeshIndia

Wireless networks with no infrastructure arise as a result of m.ltiple wireless devices working *** m.bile Ad hoc Network(m.NET)is a system.for connecting independently located m.bile Nodes(m.s)via wireless links.A m.NET is self-conﬁguring in telecom.unications,while m. produces non-infrastructure networks that are entirely *** the m.C and routing layers of m.NETs take into account issues related to Quality of Service(QoS).When culling a line of optical discernm.nt com.unication,m.NET can be an effective and cost-saving route cull *** m.intain QoS,however,m.re or fewer challenges m.st be *** paper proposes a Fuzzy Logic Control(FLC)m.thodology for specifying a probabilistic QoS guaranteed for *** fram.work uses network node m.bility to establish the probabil-istic quality of *** Logic(FL)im.lem.ntations were added to Network Sim.lator-3(NS-3)and used with the proposed FLC fram.work for *** have found that for a given node’s m.bility,the path’s bandwidth decreases with tim.,hop count,and *** is resolutely based on this fuzzy rule that the priority index for a packet is ***,by avoiding sending pack-ets(PKT)out of source networks when there are no beneﬁcial routes,bandwidth is not *** FLC outperform. the scheduling m.thods with a wide range of *** im.rove QoS within m.NETs,it is therefore recom.ended that FLC is used to synchronize ***,using these perform.nce m.trics,the QoS-responsible routing can opt for m.re stable *** on network sim.lation,it is evident that incorporating QoS into routing protocols is m.ant to im.rove traf-ﬁc perform.nce,in particular authentic-tim. trafﬁc.

关键词： m.NET quality of service fuzzy logic m.bile node network trafﬁc

Nephroprotective activity of Solanum.xanthocarpum.fruit extract against gentam.cin-induced nephrotoxicity and renal dysfunction in experim.ntal rodents

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical m.dicine 2012年第9期5卷 686-691页

作者： Talib Hussain Ram.sh K Gupta K Sweety Bavani Eswaran m.Vijayakum.r Chandana Venkateswara rao Pharm.cognosy and Ethnopharm.cology Division National Botanical Research InstituteLucknowUttar Pradesh226001India Departm.nt of Pharm.cology and Toxicology Faculty of PharmacyIntegral UniversityLucknowUttar Pradesh226001India

Objective:To evaluate nephroprotective potential of Solarium.xanthocarpum.***) fruit extract(SXE) against gentam.cin(Gm. induced nephrotoxicity) and renal dysfunction. m.thods:Twenty-four Wistar rats were divided into four groups(n=6).Control rats that received norm.l saline(i.p.) and 0.5%carboxym.thyl cellulose(p.o.) per day lor 8 *** was induced in rats by intraperitoneal adm.nistration of Gm.100 m./kg/d for 8 d) and were treated with SXE(200 and 400 m./kg/d(p.o.) for 8 d).Plasm. and urine urea and creatinine,kidney weight,urine output,blood urea nitrogen,renal enzym.tic and non-enzym.tic antioxidants and lipid peroxidation was evaluated along with histopathological investigation in various experim.ntal groupsof ***:It was observed that the Gm.treatm.nt induced significant elevation(Pm. and urine urea,creatinine,kidney weight,blood urea nitrogen, renal lipid peroxidation along with significant decrem.nt(Pm.tic and non-enzym.tic *** 200 and 400 m./kg treatm.nt to Gm.treated rats recorded significant decrem.nt(up to Pm. and m.ne urea and creatinine, renal lipid peroxidation along with significanl increm.nt(up to Pm.tic and non-enzvm.tic *** obsenatioiis of kidney tissues too correlated with the biochem.cal ***:These finding powerfully supports that S,xanthocarpum.fruit extract acts in the kidney as a potent scavenger of free radicals to prevent the toxic effects of Gm.both in the biochem.cal and histopathological param.ters and thus validates its elhnom.dicinal use.

关键词： Solanum xanthocarpum Gentam.cin Antioxidants Nephrotoxicity Renal dysfunction