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Reliable Data collection Model and Transmission Framework in Large-Scale Wireless Medical Sensor Networks

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computer Modeling in Engineering & Sciences 2024年第7期140卷 1077-1102页

作者： Haosong Gou Gaoyi Zhang RenêRipardo calixto Senthil Kumar Jagatheesaperumal Victor hugo c.de Albuquerque china Mobile Group Sichuan co. Ltd.Chengdu640041China Department of Teleinformatics Engineering Federal University of CearáFortaleza60455-970Brazil Department of Electronics&communication Engineering Mepco Schlenk Engineering CollegeSivakasi626005India

Large-scale wireless sensor networks(WSNs)play a critical role in monitoring dangerous scenarios and responding to medical ***,the inherent instability and error-prone nature of wireless links present significant challenges,necessitating efficient data collection and reliable transmission *** paper addresses the limitations of existing data transmission and recovery protocols by proposing a systematic end-to-end design tailored for medical event-driven cluster-based large-scale *** primary goal is to enhance the reliability of data collection and transmission services,ensuring a comprehensive and practical *** approach focuses on refining the hop-count-based routing scheme to achieve fairness in forwarding ***,it emphasizes reliable data collection within clusters and establishes robust data transmission over multiple *** systematic improvements are designed to optimize the overall performance of the WSN in real-world *** results of the proposed protocol validate its exceptional performance compared to other prominent data transmission *** evaluation spans varying sensor densities,wireless channel conditions,and packet transmission rates,showcasing the protocol’s superiority in ensuring reliable and efficient data *** systematic end-to-end design successfully addresses the challenges posed by the instability of wireless links in *** prioritizing fairness,reliability,and efficiency,the proposed protocol demonstrates its efficacy in enhancing data collection and transmission services,thereby offering a valuable contribution to the field of medical event-drivenWSNs.

关键词： Wireless sensor networks reliable data transmission medical emergencies cluster data collection routing scheme

Exploring treatment options in cancer: Tumor treatment strategies

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Signal Transduction and Targeted Therapy 2024年第8期9卷 3337-3380页

作者： Beilei Liu Hongyu Zhou Licheng Tan Kin To hugo Siu Xin-Yuan Guan Department of clinical Oncology The University of Hong Kong-Shenzhen HospitalShenzhenChina Department of clinical Oncology The University of Hong KongHong KongChina state Key Laboratory for Liver Research The University of Hong KongHong KongChina Advanced Energy Science and Technology Guangdong Laboratory HuizhouChina MOE Key Laboratory of Tumor Molecular Biology Jinan UniversityGuangzhouChina

Traditional therapeutic approaches such as chemotherapy and radiation therapy have burdened cancer patients with onerous physical and psychological ***,the landscape of tumor treatment has undergone a comprehensive and remarkable *** as fervently pursued modalities are small molecule targeted agents,antibody-drug conjugates(ADcs),cell-based therapies,and gene *** cutting-edge treatment modalities not only afford personalized and precise tumor targeting,but also provide patients with enhanced therapeutic comfort and the potential to impede disease ***,it is acknowledged that these therapeutic strategies still harbour untapped potential for further *** a comprehensive understanding of the merits and limitations of these treatment modalities holds the promise of offering novel perspectives for clinical practice and foundational research *** this review,we discussed the different treatment modalities,including small molecule targeted drugs,peptide drugs,antibody drugs,cell therapy,and gene *** will provide a detailed explanation of each method,addressing their status of development,clinical challenges,and potential *** aim is to assist clinicians and researchers in gaining a deeper understanding of these diverse treatment options,enabling them to carry out effective treatment and advance their research more effciently.

关键词： drugs treatment holds

Freeze-thaw cycles and associated geomorphology in a post-glacial environment:current glacial,paraglacial,periglacial and proglacial scenarios at Pico de Orizaba volcano,Mexico

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Journal of Mountain Science 2024年第6期21卷 1954-1977页

作者： Víctor SOTO carlos M.WELSH R. Kenji YOSHIKAWA hugo DELGADO GRANADOS centro de ciencias de la Tierra Universidad VeracruzanaCircuito Gonzalo Aguirre BeltránS/NZona Universitaria91090XalapaMéxico Water and Environmental Research center University of Alaska FairbanksFairbanksAlaska 99775USA Instituto de Geofísica Universidad Nacional Autónoma de MéxicoCiudad de México 04150México Department of Earth and Environmental Sciences Ludwig Maximilians UniversitätMunich 80333Germany

The glacial history of Pico de Orizaba indicates that during the Last Glacial Maximum,its icecap covered up to~3000 m asl;due to the air temperature increasing,its main glacier has retreated to 5050 m *** retraction of the glacier has left behind an intense climatic instability that causes a high frequency of freeze-thaw cycles of great intensity;the resulting geomorphological processes are represented by the fragmentation of the bedrock that occupies the upper parts of the *** is a notable lack of studies regarding the fragmentation and erosion occurring in tropical high mountains,and the associated geomorphological risks;for this reason,as a first stage of future continuous research,this study analyzes the freezing and thawing cycles that occur above 4000 m asl,through continuous monitoring of surface ground *** results allow us to identify and characterize four zones:glacial,paraglacial,periglacial and *** was found that the paraglacial zone presents an intense drop of temperature,of up to~9℃ in only sixty *** rock fatigue and intense freeze-thaw cycles that occur in this area are responsible for the high rate of rock disintegration and represent the main factor of the constant slope dynamics that occur at the *** activity decreases,both in frequency and intensity,according to the distance to the glacier,which is where the temperature presents a certain degree of stability,until reaching the proglacial zone,where cycles are almost non-existent,and therefore there is no gelifraction *** geomorphological processes have resulted in significant alterations to the mountain slopes,which can have severe consequences in terms of risk and water.

关键词： Freeze-Thaw Gelifraction Mountain mechanical erosion Periglacial geomorphology Postglacial scenarios

charge qubits based on ultra-thin topological insulator films

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Frontiers of physics 2024年第3期19卷 71-81页

作者： Kexin Zhang hugo V.Lepage Ying Dong crispin H.W.Barnes Research center for Quantum Sensing Intelligent Perception Research InstituteZhejiang LabHangzhou 311121China cavendish Laboratory Department of PhysicsUniversity of CambridgeCambridge CB30HEUnited Kingdom

We study how to use the surface states in a Bi2Se3 topological insulator ultra-thin film that are affected by finite size effects for the purpose of quantum *** demonstrate that:(i)surface states under the finite size effect can effectively form a two-level system where their energy levels lie in between the bulk energy gap and a logic qubit can be constructed,(ii)the qubit can be initialized and manipulated using electric pulses of simple forms,(iii)two-qubit entanglement is achieved through a√SWAP operation when the two qubits are in a parallel setup,and(iv)alternatively,a Floquet state can be exploited to construct a qubit and two Floquet qubits can be entangled through a controlled-NOT *** Floquet qubit offers robustness to background noise since there is always an oscillating electric field applied,and the single qubit operations are controlled by amplitude modulation of the oscillating field,which is convenient experimentally.

关键词： topological insulator quantum computing nanodevices

Experimental evaluation of a“U”type earth-to-air heat exchanger planned for narrow installation space in warm climatic conditions

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Energy and Built Environment 2024年第5期5卷 772-786页

作者： Ricardo Molina-Rodea Jorge Alejandro Wong-Loya hugo Pocasangre-chávez Jennifer Reyna-Guillén Institute of Renewable Energies National Autonomous University of MexicoTemixcoMorelosMexico

The thermal performance of a“U”type earth-to-air heat exchanger is presented in this experimental *** device has a serial-connected vertical *** wells where tubes were installed have a depth of fewer than 3 m and are separated every 1.5 m,using an installation area of *** experimentation was carried out in March in Morelos,Mexico when the environmental temperature reaches 35℃ during the *** performance of the device was measured and compared to the requirements of an office for cooling purposes within a university campus to reproduce the space restrictions found in urbanized *** using a small land surface,it is feasible for urbanized *** air temperature inside the“U”type earth-to-air heat exchanger,the surrounding soil temperature,the airspeed,and the power consumed by the fan were *** air temperature and the fan’s power consumption data were obtained by modifying the airspeed in four constant values,from 1.3 m/s to 6.6 m/*** show that the device evaluated in this work has adequate thermal performance for cooling purposes compared to the requirements of an office.A decrease in air temperature was recorded in a range of 5.1℃ to 9.4℃.Over 70%of the total temperature difference was reached in the first well,where the average soil thermal disturbance at 5 cm was 2.8℃.The device achieved a maximum cOP of 12.8 and a maximum effectiveness of 88.4%.With these results,it is concluded that the system is suitable for cooling purposes in areas with space *** work is novel since the dimensions available for installation in urbanized areas are considered and compared with the thermal requirements of an *** addition to the fact that there are no published works with vertical heat exchangers connected in series.

关键词： Low temperature geothermal energy Thermal performance Vertical heat exchangers Space restrictions in urbanized areas Geothermal direct uses

Robust Machine Learning Technique to classify cOVID-19 Using Fusion of Texture and Vesselness of X-Ray Images

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computer Modeling in Engineering & Sciences 2024年第2期138卷 1981-2004页

作者： Shaik Mahaboob Basha Victor hugo cde Albuquerque Samia Allaoua chelloug Mohamed Abd Elaziz Shaik Hashmitha Mohisin Suhail Parvaze Pathan Department of Electronics and communication Engineering N.B.K.R.Institute of Science&TechnologyVidyanagarAndhra Pradesh524413India Department of Teleinformatics Engineering Federal University of CearáFortaleza60455-970Brazil Information Technology Department College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh84428Saudi Arabia Department of Mathematics Faculty of ScienceZagazig UniversityZagazig44519Egypt Faculty of computer Science and Engineering Galala UniversitySuez435611Egypt Artificial Intelligence Research center(AIRc) College of Engineering and Information TechnologyAjman UniversityAjmanUnited Arab Emirates Department of Electrical and computer Engineering Lebanese American UniversityByblos13-5053Lebanon Department of Avionics Indian Institute of Space Science and TechnologyThiruvananthapuramKerala695547India Department of Veterinary clinical Sciences University of MinnesotaSt.PaulMinnesota55108USA

Manual investigation of chest radiography(cXR)images by physicians is crucial for effective decision-making in cOVID-19 ***,the high demand during the pandemic necessitates auxiliary help through image analysis and machine learning *** study presents a multi-threshold-based segmentation technique to probe high pixel intensity regions in cXR images of various pathologies,including normal *** information is extracted using gray co-occurrence matrix(GLcM)-based features,while vessel-like features are obtained using Frangi,Sato,and Meijering *** learning models employing Decision Tree(DT)and RandomForest(RF)approaches are designed to categorize cXR images into common lung infections,lung opacity(LO),cOVID-19,and viral pneumonia(VP).The results demonstrate that the fusion of texture and vesselbased features provides an effective ML model for aiding *** ML model validation using performance measures,including an accuracy of approximately 91.8%with an RF-based classifier,supports the usefulness of the feature set and classifier model in categorizing the four different ***,the study investigates the importance of the devised features in identifying the underlying pathology and incorporates histogrambased *** analysis reveals varying natural pixel distributions in cXR images belonging to the normal,cOVID-19,LO,and VP groups,motivating the incorporation of additional features such as mean,standard deviation,skewness,and percentile based on the filtered ***,the study achieves a considerable improvement in categorizing cOVID-19 from LO,with a true positive rate of 97%,further substantiating the effectiveness of the methodology implemented.

关键词： chest radiography(cXR)image cOVID-19 classifier machine learning random forest texture analysis

Determination of critical state line(cSL)for silty-sandy iron ore tailings subjected to low-high confining pressures

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第5期16卷 1684-1695页

作者： Nilo cesar consoli João Vítor de Azambuja carvalho Alexia cindy Wagner hugo carlos Scheuermann Filho Inácio carvalho Pedro Pazzoto cacciari João Paulo de Sousa Silva civil Engineering Universidade Federal do Rio Grande do SulPorto AlegreRS90035-190Brazil Exploration and Mineral Projects-Mineral Development centre VALE S.A.Santa LuziaMG33040-900Brazil Department of civil Geological and Mining EngineeringPolytechnique MontrealQuebecH3C 3A7Canada

The disposal of filtered tailings in high dry stacks can induce particle breakage,changing the material's behaviour during the structure's *** grading changes influence material properties at the critical state,and this is not mature for intermediate artificial soils(tailings)in a broad range of confining *** this paper,it aims to describe the behaviour of iron ore tailings in a spectrum of confining pressures broader than the reported in previous studies.A series of consolidated drained(cD)triaxial tests was carried out with confining pressures ranging from 0.075 MPa to 120 *** results show that the amount of breakage plays an essential role in the response of iron ore *** existence of curved critical state line(cSL)in both specific volume(ν)-logarithm of mean effective stress(p′)and deviatoric stress(q)-mean effective stress(p′)planes,and different responses in the deviatoric stress-axial strain-volumetric strain curves were *** inverse S-shaped equation was proposed to represent the silty-sandy tailings'behaviour up to high pressures onν-lnp′*** proposed equation provides a basis for enhancing constitutive models and considers the evolution of the grading up to severe loading *** adjustment considered three regions with different responses associated with particle breakage at different pressure levels.

关键词： Tailings Iron ore tailings dry stacking Silty-sandy material critical state soil mechanics High confining pressures Particle breakage

Reducing strain on primary healthcare systems through innovative models of care:the impact of direct access physiotherapy for musculoskeletal conditions—an interrupted time series analysis

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Family Medicine and community Health 2024年第3期12卷 1-12页

作者： James Henry Zouch Bjørnar Berg Are hugo Pripp Kjersti Storheim claire E Ashton-James Manuela L Ferreira Margreth Grotle Paulo H Ferreira Sydney Musculoskeletal Health Faculty of Medicine and HealthThe University of SydneySydneyNew South WalesAustralia centre for Intelligent Musculoskeletal Health Oslo Metropolitan University Faculty of Health SciencesOsloNorway Oslo Metropolitan University Faculty of Health Sciences OsloNorway Oslo centre of Biostatistics and Epidemiology Oslo University HospitalOsloNorway Department of Rehabilitation Science and Health Technology Oslo Metropolitan University Faculty of Health SciencesOsloNorway Department of Research and Innovation Oslo University Hospital Division of Clinical NeuroscienceOsloNorway Sydney Medical School Kolling InstituteThe University of Sydney Faculty of Medicine and HealthSydneyNew South WalesAustralia The George Institute for Global Health SydneyNew South WalesAustralia Department of Research and Innovation Oslo University HospitalOsloNorway Department of Rehabilitation and Technology Oslo Metropolitan University Faculty of Health SciencesOsloNorway charles Perkins centre Sydney Musculoskeletal HealthThe University of Sydney Faculty of Medicine and HealthSydneyNew South WalesAustralia

Objectives To evaluate the longitudinal impact of introducing a national,direct access physiotherapy model of care on the rates of primary and secondary care consultations for musculoskeletal(MSK)*** Interrupted time series analysis using segmented linear *** Norway primary care Participants A cohort of 82072 participants was derived from 3 population-based health surveys conducted across separate geographical regions in *** participants surveyed were eligible for inclusion as a national representative sample of the Norwegian *** MSK consultations were linked to the Norwegian control and Payment of Health Reimbursement database and the Norwegian Patient Register using the International classification of Primary care diagnostic medical codes L-chapter for MSK conditions and spine related International classification of Diseases,10th Revision,*** Direct access to physiotherapy model of care introduced nationally in Norway in *** model allowed Norwegians to consult directly with qualified physiotherapists for MSK conditions(eg,back pain,knee osteoarthritis)without the need for a medical referral in order to claim a social security *** outcomes measured Rates of primary care consultations per 10000 population(general practitioner(GP)and physiotherapist consultations)and secondary care(specialist consultations and surgical procedures)measured from 2014 to *** The introduction of the direct access physiotherapy model was associated with an immediate stepped reduction of 391 general practice consultations per 10000 population,(95%cI:−564 to−216),without an associated change in physiotherapy *** analyses suggested there was an associated reduction in physiotherapy consultations for those in the lowest education group of 150 consultations per quarter(95%cI:−203 to−97),70 consultations per quarter in the intermediate education group(95%cI:−115 to−27)and a step

关键词： impact analysis strain

Resection of Intracranial Giant cavernous Malformation: case Report and Literature Review

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Surgical Science 2024年第2期15卷 28-35页

作者： Vinicios Rivelli Da Fonseca cleverson Martins Kill Mariana Alcantara hugo Fialho Leonnan De Sa Oliveira Lucidio Souza Filho Department of Neurosurgery Hospital Santa Rita Belo Horizonte Brazil

cerebral cavernous malformations are a rare and congenital vascular malformation that can present as a challenge in neurosurgical management. The term “giant cerebral cavernous malformations” still does not have a clear definition in the literature, with a wide variety of results. It is known, however, that there is an association between the size of the cavernoma and postoperative sequelae, especially in those with a size greater than 3 cm in its largest diameter. We present a case report of resection of a giant brain cavernoma measuring approximately 8 cm in its largest diameter, emphasizing on clinical presentation, diagnoses and postoperative evolution. Additionally, we performed a comprehensive review of the existing literature on the subject, addressing the epidemiology, pathophysiology, diagnostic methods, treatment options, and prognosis associated with this condition.

关键词： cavernous Malformation cerebral cavernous Malformation Giant cavernous Malformation cavernous Hemangioma cavernous Angioma cavernoma Giant cavernoma