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Healthcare Associated Infection in the Neonatal Intensive Care Unit of King Abdl Aziz specialist Hospital, Taif, KsA

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Advances in Infectious Diseases 2013年第4期3卷 300-305页

作者： A. K. Al-Zahrani E. M. eed A. A. Alsulaimani s. H. Abbadi Associate Prof. Medical College Consultant Pediatrician & Neonatologist Taif University Taif KSA Department of Medical Microbiology and Immunology Faculty of Medicine Menoufia University Egypt and College of Applied Medical Sciences Taif University Taif KSA Department of Medical Microbiology and Immunology Faculty of Medicine Suez Canal University Egypt and College of Medicine Taif University KSA Department Pediatrics College of Medicine Taif University Neonatal Intensive Care Unit King Abdulaziz Specialist Hospital Taif KSA

Healthcare-associated infection is a common problem of newborn in neonatal intensive care units. It results in high mortality rate and serious complications. The Aim: to assess the incidence, etiology and the mortality of healthcareassociated infections of patients in neonatal intensive care unit at King Abdl Aziz specialist Hospital (KAAsH), Taif, Kingdom of saudi Arabia. Material and Methods: This is a retrospective study including 8033 neonates admitted to neonatal intensive care unit during period between April, 2006 and December, 2012. The health-care associated infection rate, mortality rate, causative organism and risk factors were studied. Results: The prevalence of health-care associated infection was found to be 6.03%;the mortality rate was 27.1%. The highest prevalence was among children with the birth weight below 1000 g. The most frequent causative pathogen was klebseilla spp, followed by other gram negative bacilli. Conclusion: The rate of healthcare-associated infections in neonatal intensive care unit at KAAsH was relatively high. In addition, the mortality rate was observed to be high (27.1%) owing to the high virulence of the causative organisms.

关键词： Healthcare-Associated Infection Newborn Neonatal Intensive Care Unit

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Adaptive Learning Video streaming with QoE in Multi-Home Heterogeneous Networks

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Computer systems science & Engineering 2023年第9期46卷 2881-2897页

作者： s.Vijayashaarathi s.NithyaKalyani Department of Electronics and Communication Sona College of TechnologySalem636005Tamil NaduIndia Department of Information Technology K.S.R.College of EngineeringTiruchengode637215Tamil NaduIndia

In recent years,real-time video streaming has grown in *** growing popularity of the Internet of Things(IoT)and other wireless heterogeneous networks mandates that network resources be carefully apportioned among versatile users in order to achieve the best Quality of Experience(QoE)and performance *** researchers focused on Forward Error Correction(FEC)techniques when attempting to strike a balance between QoE and ***,as network capacity increases,the performance degrades,impacting the live visual ***,Deep Learning(DL)algorithms have been successfully integrated with FEC to stream videos across multiple heterogeneous *** these algorithms need to be changed to make the experience better without sacrificing packet loss and delay *** address the previous challenge,this paper proposes a novel intelligent algorithm that streams video in multi-home heterogeneous networks based on network-centric *** proposed framework contains modules such as Intelligent Content Extraction Module(ICEM),Channel status Monitor(CsM),and Adaptive FEC(AFEC).This framework adopts the Cognitive Learning-based scheduling(CLs)Module,which works on the deep Reinforced Gated Recurrent Networks(RGRN)principle and embeds them along with the FEC to achieve better *** complete framework was developed using the Objective Modular Network Testbed in C++(OMNET++),Internet networking(INET),and Python 3.10,with Keras as the front end and Tensorflow 2.10 as the back *** extensive experimentation,the proposed model outperforms the other existing intelligentmodels in terms of improving the QoE,minimizing the End-to-End Delay(eed),and maintaining the highest accuracy(98%)and a lower Root Mean square Error(RMsE)value of 0.001.

关键词： Real-time video streaming IoT multi-home heterogeneous networks forward error coding deep reinforced gated recurrent networks QoE prediction accuracy RMsE

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Optimized Resource Allocation for IoT-D2D Communication Using WsN

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Computer systems science & Engineering 2023年第5期45卷 1789-1804页

作者： s.Arun Mozhi selvi Roobaea Alroobaea s.eed Rubaiee Abdulkader s.Hanbazazah Department of Computer science and Engineering Holy Cross Engineering CollegeVagaikulam628851Tamil NaduIndia Department of Computer sceience College of Computers and Information TechnologyTaif UniversityP.O.Box 11099Taif 21974Saudi Arabia Department of Industrial and systems Engineering College of EngineeringUniversity of JeddahJeddah21959Saudi Arabia

The need for a strong system to access radio resources demands a change in operating frequency in wireless networks as a part of Radio Resource Management(RRM).In the fifth-generation(5G)wireless networks,the capacity of the system is expected to be enhanced by Device-to-Device(D2D)*** cooperation and Resources Allocation(RA)in the development of Internet of Things(IoT)enabled 5G wireless networks are investigated in this *** radio RA methods for D2D communication while not affecting any Mobile Users’(MU)communication is the main challenge of this *** performance goals such as practising equality in the rates of user data,increasing Network Throughput(NT),and reducing End-to-End Delay(eed)are achieved by *** study undertaken on optimising performance for various wireless networks is focused on in this research *** a polynomialtime Proportional Fair Resource Allocation Method(PFRAM),which considers the MU’s rate requirements,is the prime objective of this *** Resource Allocation Method(RAM)can be used by the proposed method for MU,and the time and differing location channel conditions are the factors to be adapted *** more than one resource block is allowed by our PFRAM to a D2D *** automatic maintenance of battery-less IoT wireless devices’energy level is done potentially using an Extensible Energy Management system(EEMs).Finally,the device’s Node Transmission Power(NTP)can be managed using an Energy-saving Algorithm(EsA)designed in this work for Node Uplink Data Transmission(NUDT).The trade-off between the Packet Loss Rate(PLR)and NTP is balanced by the *** cost of NUDT’s average Energy Consumption(EC)is reduced by locating the optical *** order to free much bandwidth for wireless information,NUDT conserves the harvested energy for minimising Radio Frequency(RF)Energy Transmission(ET).MATLAB simulations are used to assess the proposed *** IoT device’s NTP is managed using

关键词： IoT energy transmission WsN mobility resource allocation

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A novel reconfiguration of the solar array to enhance peak power and efficiency under partial shading conditions:experimental validation

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Clean Energy 2023年第4期7卷 824-842页

作者： Vijay Laxmi Mishra Yogesh K.Chauhan K.s.Verma eed KNIT SultanpurU.P.Pin-228118India

Non-homogeneous irradiation patterns and temperature levels immensely affect the performance of solar photovoltaic *** shading conditions on solar arrays reduce the peak power and *** paper provides a new remedy called a novel Ramanujan reconfiguration(NRR)to eliminate this physical shading problem in solar photovoltaic *** is a static-based reconfigured technique that is built using a three-diode model with the help of the MATLAB®/simulink®*** special feature of the proposed NRR technique is that when shade occurs on the solar modules,it gets realigned in a particular row,column,diagonal,corner,centre and middle peripheral *** helps over a wide range of shade dispersion on the solar *** novel topology is tested against the conventional total cross-tied(TCT)model and recently introduced advanced reconfigured models,namely odd–even topology(OET)and Kendoku topology(KDT).The results are tested under certain shading *** proposed NRR technique increases the peak power by 4.45,2.15 and 2.17 W under the first shading condition regarding TCT,OET and *** efficiency is improved by 0.51–2.18%under the third shading condition compared with other considered models in this *** addition,NRR leads to smooth output curves under the second,third and fourth shading conditions,effectively mitigating the local power *** experimental results show the proposed enhanced performance of the novel model against the other *** Abstract Remedy for physical problem correlated with solar photovoltaics Comparison with traditional and recent solar models Conclusion:NRR has effectively handled the problem related with solar *** has improved the efficiency up to 31.44%under ***,smooth output curves under s2-s4 shows its effectiveness in mitigating the local power *** power gain at 3.94%under s4 is achieved by novel ***-time verification proves the supremacy of novel proposed model over o

关键词： efficiency partial shading conditions peak power Ramanujan reconfiguration solar array total cross-tied three-diode model

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Photoluminescence of Ag-In-s/Zns quantum dots: Excitation energy dependence and low-energy electronic structure

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Nano Research 2019年第7期12卷 1595-1603页

作者： Irina V. Martynenko Anvar s. Baimuratov Florian Weigert Jose X. soares Lorena Dhamo Philip Nickl Ilona Doerfel Jutta Pauli Ivan D. Rukhlenko Alexander V. Baranov Ute Resch-Genger Federal Institute for Materials Research and Testing (BAM) Unter den Eichen 8712205 BerlinGermany ITMO University 49 Kronverksky Pr.St. Petersburg197101Russia University of Porto Rua de Jorge Viterbo Ferreira2284050-313 PortoPortugal Institute of Photonics and Optical sciences (IPOs) School of PhysicsThe University of SydneyCamperdown 2006NSWAustralia

Cd-free Ⅰ-Ⅲ-Ⅵ group semiconductor quantum dots (QDs) like Ag-ln-s and Cu-ln-s show unstructured absorption spectra with a pronounced Urbach tail,rendering the determination of their band gap energy (Eg) and the energy structure of the exciton ***,the origin of the broad photoluminescence (PL) band with lifetimes of several hundred nanoseconds is still *** encouraged us to study the excitation energy dependence (eed) of the PL maxima,PL spectral band widths,quantum yields (QYs),and decay kinetics of Als/Zns QDs of j different size,composition,and surface capping *** results were then correlated with the second derivatives of the corresponding absorption *** excellent match between the onset of changes in PL band position and spectral width with the minima found for the second derivatives of the absorption spectra underlines the potential of the eed approach for deriving Eg values of these ternary QDs from PL *** PL QY is,however,independent of excitation energy in the energy range *** the eed of the PL features of the Als/Zns QDs we could also derive a mechanism of the formation of the low-energy electronic *** was additionally confirmed by a comparison of the eed of PL data of as-synthesized and size-selected QD ensembles and the comparison of these PL data with PL spectra of single *** results indicate a strong contribution of intrinsic inhomogeneous PL broadening to the overall emission features of Als/Zns QDs originating from radiative transitions from a set of energy states of defects localized at different positions within the quantum dot volume,in addition to contributions from dimensional and chemical *** mechanism was confirmed by numerically modelling the absorption and PL energies with a simple mass approximation for spherical QDs and a modified donor-acceptor model,thereby utilizing the advantages of previously proposed PL mechanisms of ternary *** findings will

关键词： core/shell quantum dot silver indium sulfide defect photoluminescence photoluminescence quantum yield single-dot spectroscopy

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辅酶Q10预防偏头痛效果的随机对照试验

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世界核心医学期刊文摘（神经病学分册） 2005年第8期1卷 52-53页

作者： sndor P.s. Di Clemente L. Coppola G. 李一明 Headache and Pain Unit Neurology DepartmentUniversity Hospital Zurich Frauenklinikstrasse 26 8091Zurich Switzerland Dr.

Riboflavin, which improves energy metabolism similarly to coenzymeQ10(CoQ10), is effective in migraine prophylaxis. We compared CoQ10 (3×100 mg/day) and plac ebo in 42 migraine patients in a double-blind,randomized, placebo-controlled t ***10 was superior to placebo for attack-frequency, headache days and days -with-nausea in the third treatment month and well tolerated; 50%-responder -rate for attack frequency was 14.4%for placebo and 47.6%for CoQ10 (number-n eed- ed-to-treat: 3).CoQ10 is efficacious and well tolerated.

关键词：随机对照试验安慰剂对照随机双盲耐受程度反应率

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关于对子宫内膜癌患者行宫腔镜液体冲洗是否会导致肿瘤分期进展或预后恶化的随机对照研究

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世界核心医学期刊文摘（妇产科学分册） 2005年第1期1卷 22-23页

作者： sáinz De La Cuesta R. Angel Espinosa J. Crespo E. 薛艳 Depto. de Obstetricia Y Ginecol. Consulta 33 Fund. Jimenez Diaz Univ. Auto n. M.Madrid Spain

Objective: To determine whether fluid hysteroscopic directed biopsies , in pati ents with endometrial cancer upstages the tumor and worsens the prognosis. study design: Between January 1996 and september 2001, a total of 62 consecutive pati ents with endometrial cancer, treated at our institution, were randomized 3 ∶2 to have or not to have a fluid hysteroscopic biopsy just prior to surgery. A tot al of 38 patients underwent a hysteroscopy after the induction of anesthesia. Al l patients had pelvic washings performed, followed by a hysterectomy, bilateral salpingooforectomy and pelvic +/-para-aortic lymph node dissections. Only sta ges I and II endometrioid type tumors or stage IIIa, secondary to positive pelvi c washings, were included in the study. Eight patients in the hysteroscopy group and four patients in the control group were excluded for various reasons. Patie nts received post-operative radiation therapy depending on the surgical-pathol ogical risk factors. The median follow up was 34 months. Fishers Exact Test wa s performed to compare differences between the hysteroscopic (n=30) and the cont rol (n=20) groups. Results: We found three patients (10%) with positive washing s in the hysteroscopic group compared to one (5%) among the controls (P=0.64), with a statistical power of s would persist, we would n eed 588 patients in each arm to obtain a power of 80%, and reach definitive con clusions. The Odds Ratio (OR) of performing a hysteroscopy and upstaging the tum or in this study was: 2.1 95%CI (0.20-21.09). Prognostic variables were compar ed between both groups and no differences were observed. All patients but one (d ead due to intercurrent disease), were alive and with no evidence of disease at the completion of the study. Conclusions: Fluid hysteroscopy and directed biopsi es may have a small risk of upstaging early endometrial cancers, but does not se em to influence prognosis.

关键词：肿瘤分期宫腔镜检查淋巴结清扫术子宫切除术术后放疗无淋巴结转移腔镜组间发病麻醉诱导确切概率法

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基于PIC16C57单片机的智能低电阻测量仪

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现代电子技术 2002年第4期25卷 27-29页

作者：尹波邓奕湖南江南机器厂科技部湘潭411207 湖南工程学院机械工程系湘潭411101

介绍一种以 PIC16 C5 7单片机为核心的低电阻测量仪 ,与普通的低电阻测量仪不同的是 :该测量仪的测试电流仅为 0 .5 m A并加有多种保护电路 ,具有很高的安全性能。主要应用于军工、国防。

关键词：智能低电阻测量仪 PIC单片机火工品保护电路

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si(111)-(3^(1/2)×3^(1/2))R30°-Ga表面原子结构

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Journal of semiconductors 2001年第4期22卷 427-430页

作者：邓丙成徐耕陈文华何永健谢茂海唐叔贤华南建设学院西院基础部广州510405 中山大学物理系广州510275 香港大学物理系

利用自动张量低能电子衍射 (ATL eed)定量地研究 si(111) - (3× 3) R30°- Ga重构表面的原子结构 .证实了 Ga原子吸附在 T4位即第二层 si原子所对的空位上 ,同时给出了表面最顶层 7个原子层的详细坐标 .可靠性因子 RVHT=0 .143表明理... 详细信息

利用自动张量低能电子衍射 (ATL eed)定量地研究 si(111) - (3× 3) R30°- Ga重构表面的原子结构 .证实了 Ga原子吸附在 T4位即第二层 si原子所对的空位上 ,同时给出了表面最顶层 7个原子层的详细坐标 .可靠性因子 RVHT=0 .143表明理论计算和实验符合得非常好 .

关键词：表面原子结构硅电子衍射重构半导体

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