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Perioperative mortality and morbidity of hip fractures among COVID-19 infected and non-infected patients: A systematic review and meta-analysis

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Chinese Journal of Traumatology 2023年第3期26卷 162-173页

作者： Sujit Kumar Tripathy Paulson Varghese Sibasish Panigrahi Bijnya Birajita Panda anand srinivasan Ramesh Kumar Sen Department of Orthopedics All India Institute of Medical SciencesBhubaneswar751019India Department of Ophthalmology Srirama Chandra Bhanja Medical College and HospitalCuttack753007India Department of Pharmacology All India Institute of Medical SciencesBhubaneswar751019India Department of Orthopaedics Max HospitalMohali160055India

Purpose:Hip fractures among elderly patients are surgical *** COVID-19 pandemic time,many such patients could not be operated at early time because of the limitation of the medical resources,the risk of infection and redirection of medical attention to a severe infective health ***:A search of electronic databases(PubMed,Medline,CINAHL,EMBASE and the Cochrane Central Register of Controlled Trials)with the keywords"COVID","COVID-19","SARS-COV-2","Corona","pandemic","hip fracture","trochanteric fracture"and"neck femur fracture"revealed 64 studies evaluating treatment of hip fracture in elderly patients during COVID-19 pandemic *** 30-day mortality rate,inpatient mortality rate,critical care/special care need,readmission rate and complications rate in both groups were *** were analyzed using Review Manager(RevMan)***:After screening,7 studies were identified that described the mortality and morbidity in hip fractures in both COVID-19 infected(COVID-19+)and non-infected(COVID-19-)*** were significantly increased risks of 30-day mortality(32.23%COVID-19+deathvs.8.85%COVID-19-death)and inpatient mortality(29.33%vs.2.62%)among COVID-19+patients with odds ratio(OR)of 4.84(95%CI:3.13-7.47,p<0.001)and 15.12(95%CI:6.12-37.37,p<0.001),*** COVID-19+patients needed more critical care admission(OR=5.08,95%CI:1.49-17.30,p<0.009)and they remain admitted for a longer time in hospital(mean difference=3.6,95% CI:1.74-5.45,p<0.001);but there was no difference in readmission rate between these 2 *** risks of overall complications(OR=17.22),development of pneumonia(OR=22.25),and acute respiratory distress syndrome/acute respiratory failure(OR=32.96)were significantly high among COVID-19+patients compared to ***:There are increased risks of the 30-day mortality,inpatient mortality and critical care admission among hip fracture patients who are COVID-19+.The chances of developing pn

关键词： Hip fracture Femur neck fracture Mortality COVID-19 Pandemic

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A subtree-based approach to failure detection and protection for multicast in SDN

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Frontiers of Information Technology & Electronic Engineering 2016年第7期17卷 682-700页

作者： Vignesh RENGANATHAN RAJA Chung-Horng LUNG Abhishek PANDEY Guo-ming WEI anand srinivasan Department of Systems and Computer Engineering Carleton UniversityOttawaOntario KIS 5B6Canada School of Computer Science Carleton UniversityOttawaOntario KIS 5B6Canada Eion Inc. OttawaOntario K2K 2E3Canada

Software-defined networking(SDN) has received tremendous attention from both industry and *** centralized control plane in SDN has a global view of the network and can be used to provide more effective solutions for complex problems,such as traffic *** study is motivated by recent advancement in SDN and increasing popularity of multicasting *** propose a technique to increase the resiliency of multicasting in SDN based on the subtree protection *** is a group communication technology,which uses the network infrastructure efficiently by sending the data only once from one or multiple sources to a group of receivers that share a common *** applications,e.g.,live video streaming and video conferencing,become popular,but they are delay-sensitive *** in an ongoing multicast session can cause packet losses and delay,which can significantly affect quality of service(Qo S).In this study,we adapt a subtree-based technique to protect a multicast tree constructed for Open Flow switches in *** proposed algorithm can detect link or node failures from a multicast tree and then determines which part of the multicast tree requires changes in the flow table to recover from the *** a centralized controller in SDN,the backup paths can be created much more effectively in comparison to the signaling approach used in traditional multiprotocol label switching(MPLS) networks for backup paths,which makes the subtree-based protection mechanism *** also implement a prototype of the algorithm in the POX controller and measure its performance by emulating failures in different tree topologies in Mininet.

关键词： Software-defined networks(SDNs) Open Flow Multicast tree Protection POX controller Mininet Multiprotocol label switching(MPLS)

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Treat to target in Crohn’s disease:A practical guide for clinicians

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World Journal of Gastroenterology 2024年第1期30卷 50-69页

作者： Ashish R srinivasan Department of Gastroenterology Austin HealthVictoriaMelbourne 3083Australia Department of Gastroenterology Eastern HealthVictoriaMelbourne 3128Australia Department of Medicine University of MelbourneVictoriaMelbourne 3052Australia

A treat-to-target(T2T)approach applies the principles of early intervention and tight disease control to optimise long-term outcomes in Crohn's *** Selecting Therapeutic Targets in Inflammatory Bowel Disease(STRIDE)-II guidelines specify short,intermediate,and long-term treatment goals,documenting specific treatment targets to be achieved at each of these *** appraisal of Crohn’s disease activity against pre-defined treatment targets at these timepoints remains central to determining whether current therapy should be continued or *** treatment targets in Crohn’s disease comprise combination clinical and patient-reported outcome remission,in conjunction with biomarker normalisation and endoscopic *** the STRIDE-II guidelines endorse the pursuit of endoscopic healing,clinicians must consider that this may not always be appropriate,acceptable,or achievable in all *** underscores the need to engage patients at the outset in an effort to personalise care and individualise treatment *** use of non-invasive biomarkers such as faecal calprotectin in conjunction with cross-sectional imaging techniques,particularly intestinal ultrasound,holds great promise;as do emerging treatment targets such as transmural *** randomised clinical trials,namely,CALM and STARDUST,have evaluated the efficacy of a T2T approach in achieving endoscopic endpoints in patients with Crohn’s *** from these studies reflect that patient subgroups and Crohn’s disease characteristics likely to benefit most from a T2T approach,remain to be ***,outside of clinical trials,data pertaining to the real-world effectiveness of a T2T approach remains scare,highlighting the need for pragmatic real-world *** the obvious promise of a T2T approach,a lack of guidance to support its integration into real-world clinical practice has the potential to limit its *** highlights the need to describe st

关键词： Treat to target Inflammatory bowel disease Crohn’s disease Treatment targets Endoscopic remission Transmural healing Time to response Intestinal ultrasound

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Association of vitamin D and knee osteoarthritis in younger individuals

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World Journal of Orthopedics 2020年第10期11卷 418-425页

作者： Sujit Kumar Tripathy Amrit Gantaguru Saurav Narayan Nanda Sandeep Velagada anand srinivasan Manaswini Mangaraj Department of Orthopaedics All India Institute of Medical SciencesBhubaneswarBhubaneswar 751019OdishaIndia Department of Pharmacology AIIMS BhubaneswarBhubaneswar 751019OdishaIndia Department of Biochemistry AIIMS BhubaneswarBhubaneswar 751019OdishaIndia

BACKGROUND The incidence of primary osteoarthritis knee is gradually increasing among young *** increasing prevalence of obesity,sedentary lifestyle,sporting activity,and vitamin D deficiency(VDD)has been hypothesized for this shifting disease *** study was designed to look for the association of serum vitamin D among these young arthritic *** To look for the association of serum vitamin D in younger knee osteoarthritis(KOA)*** In a 2-year observational study,146 non-obese KOA patients of 35-60 years were evaluated clinically(Knee injury and Osteoarthritis Outcome Score,KOOS)and radiologically(Kellegren-Lawrence stage,KL).The serum 25(OH)D level of these patients and 146 normal healthy individuals of same age group were *** Both the groups were comparable in terms of age and *** average serum 25(OH)D level in healthy individuals and KOA patients was 45.83 ng/mL and 34.58 ng/mL,respectively(P<0.001).Inadequate serum 25(OH)D level(<30 ng/mL)was found in 46.57%of KOA patients and 24%of normal healthy participants indicating a significant positive association(odds ratio 2.77,95%CI:1.67-4.54,P<0.001).The 25(OH)D level in KL grade I,II,III and IV was 43.40,30.59,31.56 and 33.93 ng/mL respectively(no difference,P=0.47).Similarly,the KOOS score in sufficient,insufficient and deficient groups were 65.31,60.36 and 65.31,respectively(no difference,P=0.051).CONCLUSION The serum 25(OH)D level is significantly low in younger KOA ***,the clinical and radiological severities have no association with serum vitamin D level.

关键词： Degenerative disease Early-onset arthritis Cholecalciferol Sunlight Knee joint Arthroplasty Knee replacement

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Multimedia Streaming for Ad Hoc Wireless Mesh Networks Using Network Coding

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International Journal of Communications, Network and System Sciences 2013年第5期6卷 204-220页

作者： Basil Saeed Chung-Horng Lung Thomas Kunz anand srinivasan Department of Systems and Computer Engineering Carleton University Ottawa Canada

Over the past years, we have witnessed an explosive growth in the use of multimedia applications such as audio and video streaming with mobile and static devices. Multimedia streaming applications need new approaches to multimedia transmissions to meet the growing volume demand and quality expectations of multimedia traffic. This paper studies network coding which is a promising paradigm that has the potential to improve the performance of networks for multimedia streaming applications in terms of packet delivery ratio (PDR), latency and jitter. This paper examines several network coding protocols for ad hoc wireless mesh networks and compares their performance on multimedia streaming applications with optimized broadcast protocols, e.g., BCast, Simplified Multicast Forwarding (SMF), and Partial Dominant Pruning (PDP). The results show that the performance increases significantly with the Random Linear Network Coding (RLNC) scheme.

关键词： Wireless Broadcast Multimedia Streaming Audio Streaming Video Streaming Network Coding Random Linear Network Coding PDP SMF BCast

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Direct recycling of Li-ion batteries from cell to pack level:Challenges and prospects on technology,scalability,sustainability,and economics

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Carbon Energy 2024年第6期6卷 1-39页

作者： Joseph Jegan Roy Do Minh Phuong Vivek Verma Richa Chaudhary Michael Carboni Daniel Meyer Bin Cao Madhavi srinivasan Energy Research Institute@NTU(ERI@N) SCARCE LaboratoryNanyang Technological UniversitySingaporeSingapore School of Materials Science and Engineering Nanyang Technological UniversitySingaporeSingapore CEA CNRSENSCMUniversity of MontpellierUMR 5257(ICSM)Bagnols-sur-Cèze CedexFrance School of Civil and Environmental Engineering Nanyang Technological UniversitySingaporeSingapore

Direct recycling is a novel approach to overcoming the drawbacks of conventional lithium-ion battery(LIB)recycling processes and has gained considerable attention from the academic and industrial sectors in recent *** primary objective of directly recycling LIBs is to efficiently recover and restore the active electrode materials and other components in the solid phase while retaining electrochemical *** technology's advantages over traditional pyrometallurgy and hydrometallurgy are costeffectiveness,energy efficiency,and sustainability,and it preserves the material structure and morphology and can shorten the overall recycling *** review extensively discusses the advancements in the direct recycling of LIBs,including battery sorting,pretreatment processes,separation of cathode and anode materials,and regeneration and quality enhancement of electrode *** encompasses various approaches to successfully regenerate high-value electrode materials and streamlining the recovery process without compromising their electrochemical ***,we highlight key challenges in direct recycling when scaled from lab to industries in four perspectives:(1)battery design,(2)disassembling,(3)electrode delamination,and(4)commercialization and *** on these challenges and changing market trends,a few strategies are discussed to aid direct recycling efforts,such as binders,electrolyte selection,and alternative battery designs;and recent transitions and technological advancements in the battery industry are presented.

关键词： battery design cathode regeneration direct recycling graphite recycling lithium-ion battery,scaling-up

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Network Coding and Quality of Service for Mobile <i>Ad Hoc</i>Networks

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International Journal of Communications, Network and System Sciences 2014年第10期7卷 409-422页

作者： Michael Hay Basil Saeed Chung-Horng Lung Thomas Kunz anand srinivasan Systems and Computer Engineering Carleton University Ottawa Canada EION Inc Ottawa Canada

Network Coding is a relatively new forwarding paradigm where intermediate nodes perform a store, code, and forward operation on incoming packets. Traditional forwarding approaches, which employed a store and forward operation, have not been able to approach the limit of the max-flow min-cut throughput wherein sources transmitting information over bottleneck links have to compete for access to these links. With Network Coding, multiple sources are now able to transmit packets over bottleneck links simultaneously, achieving the max-flow min-cut through-put and increasing network capacity. While the majority of the contemporary literature has focused on the performance of Network Coding from a capacity perspective, the aim of this research has taken a new direction focusing on two Quality of Service metrics, e.g., Packet Delivery Ratio (PDR) and Latency, in conjunction with Network Coding protocols in Mobile Ad Hoc Networks (MANETs). Simulations are performed on static and mobile environments to determine a Quality of Service baseline comparison between Network Coding protocols and traditional ad hoc routing protocols. The results show that the Random Linear Network Coding protocol has the lowest Latency and Dynamic Source Routing protocol has the highest PDR in the static scenarios, and show that the Random Linear Network Coding protocol has the best cumulative performance for both PDR and Latency in the mobile scenarios.

关键词： Network Coding Mobility Quality of Service Mobile Ad Hoc Networks Performance Evaluation

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MXene-Based Elastomer Mimetic StretchableSensors: Design, Properties, and Applications

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Nano-Micro Letters 2024年第7期16卷 295-342页

作者： Poushali Das Parham Khoshbakht Marvi Sayan Ganguly Xiaowu(Shirley)Tang Bo Wang Seshasai srinivasan Amin Reza Rajabzadeh Andreas Rosenkranz School of Biomedical Engineering McMaster University1280 Main Street WestHamiltonON L8S 4L8Canada Department of Chemistry and Waterloo Institute for Nanotechnology(WIN) University of Waterloo200 University Ave WestWaterlooONCanada Centre for Eye and Vision Research(CEVR) 17W Hong Kong Science ParkShatinHong KongPeople’s Republic of China Chair of Functional Materials Department of Materials Science and EngineeringSaarland UniversitySaarbruckenGermany W Booth School of Engineering Practice and Technology McMaster University1280 Main Street WestHamiltonON L8S 4L7Canada Department for Chemical Engineering Biotechnology and MaterialsUniversity of ChileSantiagoChile

Flexible sensors based on MXene-polymer composites are highly prospective for next-generation wearable electronics used in human-machine *** of the motivating factors behind the progress of flexible sensors is the steady arrival of new conductive ***,a new family of 2D nanomaterials,have been draw-ing attention since the last decade due to their high electronic conduc-tivity,processability,mechanical robustness and chemical *** this review,we encompass the fabrication of MXene-based polymeric nanocomposites,their structure-property relationship,and applications in the flexible sensor ***,our discussion is not only lim-ited to sensor design,their mechanism,and various modes of sensing platform,but also their future perspective and market throughout the *** our article,we intend to fortify the bond between flexible matrices and MXenes thus promoting the swift advancement of flexible MXene-sensors for wearable technologies.

关键词： Flexible sensor 2D nanomaterials MXene Wearable and conductive Applications

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近海三角张力腿平台钢筋束假定失效研究

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哈尔滨工程大学学报（英文版） 2024年第1期23卷 182-200页

作者： srinivasan Chandrasekaran Ganta Shanmukha Rao Department of Ocean Engineering Indian Institute of TechnologyMadras 600036India

Offshore triceratops is one of the successful manifestations of the form-dominant design approaches deployable in ultra-deepwater oil and gas *** deck’s geometric shape and partial isolation from the legs counteract lateral *** are position-restrained to the sea bed by taut-moored tendons,while ball joints partially isolate the deck from the buoyant ***,compliance in the horizontal plane imposes large displacements,intuiting the necessity to examine tendon *** analysis of triceratops under wave and wind combined action is carried out under the postulated conditions of a tendon failure.10-yr,100-yr,and 1000-yr post-Katrina hurricane conditions are assumed as loading to the *** confirm a marginal increase in the natural periods of stiff degrees of freedom even under postulated failure conditions,ensuring good adaptability to ultra-deep *** postulated failure,the tension of adjacent tendons varies significantly,causing a shift to the mean position of the *** life is significantly reduced under the postulated failure of tendons,making the platform free-floating without affecting its *** also show that the pitch response of the deck is a clear manifestation of the postulated failure,which is otherwise absent due to the presence of ball *** attempted study deliberates on the fatigue life of tendons,assessing the platform’s suitability to ultra-deep waters and identifying the vulnerable legs for the chosen load combinations.

关键词： Ball joints Tendons Buoyant legs Fatigue life Irregular waves Postulated failure

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Intelligent Energy Utilization Analysis Using IUA-SMD Model Based Optimization Technique for Smart Metering Data

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Journal of Harbin Institute of Technology(New Series) 2024年第1期31卷 90-98页

作者： K.Rama Devi V.srinivasan G.Clara Barathi Priyadharshini J.Gokulapriya Department of Information Technology Panimalar Engineering CollegeChennaiTamil Nadu 600029India Department of Computer Applications Dayananda Sagar College of EngineeringBengaluru 560078KarnatakaIndia Department of Computer Appliations Karpagam Academy of Higher EducationCoimbatoreTamil Nadu 641021India Department of Computer Science Rathinam College of Arts and ScienceCoimbatoreTamil Nadu 641021India

Smart metering has gained considerable attention as a research focus due to its reliability and energy-efficient nature compared to traditional electromechanical metering systems. Existing methods primarily focus on data management,rather than emphasizing efficiency. Accurate prediction of electricity consumption is crucial for enabling intelligent grid operations,including resource planning and demandsupply balancing. Smart metering solutions offer users the benefits of effectively interpreting their energy utilization and optimizing costs. Motivated by this,this paper presents an Intelligent Energy Utilization Analysis using Smart Metering Data(IUA-SMD)model to determine energy consumption patterns. The proposed IUA-SMD model comprises three major processes:data Pre-processing,feature extraction,and classification,with parameter optimization. We employ the extreme learning machine(ELM)based classification approach within the IUA-SMD model to derive optimal energy utilization labels. Additionally,we apply the shell game optimization(SGO)algorithm to enhance the classification efficiency of the ELM by optimizing its parameters. The effectiveness of the IUA-SMD model is evaluated using an extensive dataset of smart metering data,and the results are analyzed in terms of accuracy and mean square error(MSE). The proposed model demonstrates superior performance,achieving a maximum accuracy of65.917% and a minimum MSE of0.096. These results highlight the potential of the IUA-SMD model for enabling efficient energy utilization through intelligent analysis of smart metering data.

关键词： electricity consumption predictive model data analytics smart metering machine learning

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