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Impact of COVID-19 pandemic on radiology education,training,and practice:A narrative review

World Journal of Radiology 2021年第11期13卷 354-370页

作者： Md Anwarul Azim Majumder Uma Gaur Keerti Singh Latha Kandamaran Subir Gupta Mainul Haque sayeeda rahman Bidyadhar Sa Mizanur rahman Fidel Rampersad Faculty of Medical Sciences The University of the West IndiesCave Hill CampusCave Hill BB23034Barbados Unit of Pharmacology Faculty of Medicine and Defence HealthUniversiti Pertahanan Nasional Malaysia(National Defence University of Malaysia)Kem Perdana Sugai BesiKuala Lumpur 57000Malaysia School of Medicine American University of Integrative Sciences(AUIS)Bridgetown BB11318Barbados Faculty of Medical Sciences The University of the West IndiesSt Augustine CampusSt Augustine 33178Trinidad and Tobago Principal's Office International Medical CollegeDhaka 1207Bangladesh

Radiology education and training is of paramount clinical importance given the prominence of medical imaging utilization in effective clinical *** incorporation of basic radiology in the medical curriculum has continued to evolve,focusing on teaching image interpretation skills,the appropriate ordering of radiological investigations,judicious use of ionizing radiation,and providing exposure to interventional *** in radiology have been driven by the digital revolution,which has,in turn,had a positive impact on radiology education and *** the advent of the corona virus disease 2019(COVID-19)pandemic,many training institutions and hospitals adhered to directives which advised rescheduling of non-urgent outpatient *** inevitably impacted the workflow of the radiology department,which resulted in the reduction of clinical in-person case reviews and consultations,as well as in-person teaching *** medical schools and research centers completely suspended face-to-face academic *** led to challenges for medical teachers to complete the radiology syllabus while ensuring that teaching activities continued safely and *** a result,online teaching platforms have virtually replaced didactic face-to-face *** educators also sought other strategies to incorporate interactive teaching sessions while adopting the e-learning approach,as they were cognizant of the limitations that this may have on students’clinical *** to online methods to review live cases,journal clubs,simulation-based training,clinical interaction,and radiology examination protocolling are a few examples of successfully addressing the limitations in reduced clinical *** this review paper,we discuss(1)The impact of the COVID-19 pandemic on radiology education,training,and practice;(2)Challenges and strategies involved in delivering online radiology education for undergraduates and postgraduates d

关键词： Radiology Education Training Practice COVID-19 pandemic Impact

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A Synergistic Multi-Attribute Decision-Making Method for Educational Institutions Evaluation Using Similarity Measures of Possibility Pythagorean Fuzzy Hypersoft Sets

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 501-530页

作者： Khuram Ali Khan Saba Mubeen Ishfaq Atiqe Ur rahman Salwa El-Morsy Department of Mathematics University of SargodhaSargodha40100Pakistan Department of Mathematics University of Management and TechnologyLahore54000Pakistan Department of Mathematics College of ScienceQassim UniversityBuraydah51452Saudi Arabia

Due to the numerous variables to take into account as well as the inherent ambiguity and uncertainty,evaluating educational institutions can be *** concept of a possibility Pythagorean fuzzy hypersoft set(pPyFHSS)is more flexible in this regard than other theoretical fuzzy set-like models,even though some attempts have been made in the literature to address such *** study investigates the elementary notions of pPyFHSS including its set-theoretic operations union,intersection,complement,OR-and *** results related to these operations are also modified for ***,the similarity measures between pPyFHSSs are formulated with the assistance of numerical examples and ***,an intelligent decision-assisted mechanism is developed with the proposal of a robust algorithm based on similarity measures for solving multi-attribute decision-making(MADM)problems.A case study that helps the decision-makers assess the best educational institution is discussed to validate the suggested *** algorithmic results are compared with the most pertinent model to evaluate the adaptability of pPyFHSS,as it generalizes the classical possibility fuzzy set-like theoretical ***,while considering significant evaluating factors,the flexibility of pPyFHSS is observed through structural comparison.

关键词： Hypersoft set Pythagorean fuzzy hypersoft set computational complexity multi-attribute decision-making optimization similarity measures uncertainty

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Solid Waste Management:A MADM Approach Using Fuzzy Parameterized Possibility Single-Valued Neutrosophic Hypersoft Expert Settings

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 531-553页

作者： Tmader Alballa Muhammad Ihsan Atiqe Ur rahman Noorah Ayed Alsorayea Hamiden Abd El-Wahed Khalifa Department of Mathematics College of SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia 2 Department of Mathematics University of Management and TechnologyLahore54000Pakistan Department of Mathematics College of ScienceQassim UniversityBuraydah51452Saudi Arabia

The dramatic rise in the number of people living in cities has made many environmental and social problems *** search for a productive method for disposing of solid waste is the most notable of these *** scholars have referred to it as a fuzzy multi-attribute or multi-criteria decision-making problem using various fuzzy set-like approaches because of the inclusion of criteria and anticipated *** goal of the current study is to use an innovative methodology to address the expected uncertainties in the problem of solid waste site *** characteristics(or sub-attributes)that decision-makers select and the degree of approximation they accept for various options can both be indicators of these *** tackle these problems,a novel mathematical structure known as the fuzzy parameterized possibility single valued neutrosophic hypersoft expert set(ρˆ-set),which is initially described,is integrated with a modified version of Sanchez’s *** this,an intelligent algorithm is *** steps of the suggested algorithm are explained with an example that explains *** compatibility of solid waste management sites and systems is discussed,and rankings are established along with detailed justifications for their *** study’s strengths lie in its application of fuzzy parameterization and possibility grading to effectively handle the uncertainties embodied in the parameters’nature and alternative approximations,*** uses specific mathematical formulations to compute the fuzzy parameterized degrees and possibility grades that are missing from the prior *** is simpler for the decisionmakers to look at each option separately because the decision is *** the computed results,it is discovered that they are consistent and dependable because of their preferred properties.

关键词： Hypersoft expert set Sanchez’s method decision making optimization solid waste management possibility grade fuzzy parameterization

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A Comprehensive Survey on Federated Learning Applications in Computational Mental Healthcare

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 49-90页

作者： Vajratiya Vajrobol Geetika Jain Saxena Amit Pundir Sanjeev Singh Akshat Gaurav Savi Bansal Razaz Waheeb Attar Mosiur rahman Brij B.Gupta Institute of Informatics and Communication University of DelhiDelhi110021India Maharaja Agrasen College University of DelhiDelhi110096India Computer Engineering Ronin InstituteMontclairNJ 07043USA Department of Research and Innovation Insights2TechinfoJaipur302001India University Centre for Research and Development(UCRD) Chandigarh UniversityChandigarh140413India Management Department College of Business AdministrationPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia CCRI&Department of Computer Science and Information Engineering Asia UniversityTaichung413Taiwan Symbiosis Centre for Information Technology(SCIT) Symbiosis International UniversityPune411057India Center for Interdisciplinary Research University of Petroleum and Energy Studies(UPES)Dehradun248007India

Mental health is a significant issue worldwide,and the utilization of technology to assist mental health has seen a growing *** aims to alleviate the workload on healthcare professionals and aid *** applications have been developed to support the challenges in intelligent healthcare ***,because mental health data is sensitive,privacy concerns have *** learning has gotten some *** research reviews the studies on federated learning and mental health related to solving the issue of intelligent healthcare *** explores various dimensions of federated learning in mental health,such as datasets(their types and sources),applications categorized based on mental health symptoms,federated mental health frameworks,federated machine learning,federated deep learning,and the benefits of federated learning in mental health *** research conducts surveys to evaluate the current state of mental health applications,mainly focusing on the role of Federated Learning(FL)and related privacy and data security *** survey provides valuable insights into how these applications are emerging and evolving,specifically emphasizing FL’s impact.

关键词： Depression emotional recognition intelligent healthcare systems mental health federated learning stress detection sleep behaviour

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Malignant Sacrococcygeal Teratoma with Yolk Sac Differentiation in a Child—A Case Presentation

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Open Journal of Pathology 2018年第2期8卷 60-67页

作者： sayeeda Nasreen Mohammad Zillur rahman Shahe Systa Mosarrat Tasnuva Sharmin Mizanur rahman Department of Pathology Chittagong Medical College Chittagong Bangladesh Department of Biochemistry Rangamati Medical College Rangamati Bangladesh

Sacrococcygeal teratoma (SCT) is a common congenital neoplasm, contains derivatives of more than one of the three embryonic germ cell layers. However, malignant Sacrococcygeal Yolk Sac tumor (YST) is an extremely rare extra-gonadal germ cell tumor. This case describes a two and half years old female child presenting with history of swelling at sacrococcygeal region for nine months. Case was evaluated clinically. Patient’s serum alpha fetoprotein (AFP) level was elevated abnormally. FNAC of the swelling was done which shows suspicious cell for immature teratoma. Swelling excised and histopathological examination was carried out, the report of which shows malignant sacrococcygeal teratoma with yolk sac tumor.

关键词： Sacrococcygeal Teratoma Yolk Sac Tumor AFP FNAC

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Capturing transition and non-transition flows with a new shear stress transport model

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Chinese Journal of Aeronautics 2023年第3期36卷 121-136页

作者： Md Mizanur rahman School of Mechanical Engineering Hangzhou Dianzi UniversityHangzhou 310018China

A new Shear Stress Transport(SST)k-ω model is devised to integrate salient features of both the non-transitional SST k-ω model and correlation-based γ-Re_(θ) transition *** exceptionally simplified approach is applied to extend the New SST(NSST)model capabilities toward transition/non-transition ***’s stress-intensity factor R_(b)=|-uv|/k can be parameterized with the wall-distance dependent Reynolds number Re_(y)=√ky/v;however,as the Re_(y)is replaced by a“flow-structure-adaptive”parameter R_(μ)=v_(T)/v,the resulting R_(b)is capable of capturing various transition phenomena *** prospective stress-intensity parameter R_(b)=R_(b)(Re_(y),R_(μ))is incorporated in the constitutive relations for eddy-viscosity v_(T) and production term P_(k).The proposed formulation is intrinsically plausible,having a dramatic impact on the prediction of bypass,separation-induced and natural transitions together with non-transitional *** extra viscous-production term P_(k)^(lim) is added with the k-equation to ensure proper generation of k at the viscous sublayer when computing separation-induced transition over a Low-Reynolds Number(LRN)*** demonstrate that the NSST k-ω model maintains an excellent consistency with both SST k-ω and γ-Re_(θ) models.

关键词： γ-Re_(θ)model Non-transition Stress-intensity parameter SST model Transition

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Fluvial reservoir characterization through channel belt dimension and petrophysical analysis

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Petroleum Science 2023年第2期20卷 787-802页

作者： Shakhawat Hossain Tahmidur rahman Junayed Naymur rahman Department of Geology University of DhakaDhaka1000Bangladesh

The dimensions and connectivity of fluvial reservoirs vary greatly, making it challenging to characterize them using conventional approaches. In this study integrated channel belt dimension analysis from seismic geomorphology and empirical equations, well log facies, and petrophysical analysis were performed to characterize the fluvial reservoirs. The study interval consists of fluvial deposits and is divided into three reservoir zones, which are defined by four key regional markers (B, D, K, O). In these intervals, six (6) fluvial facies have been identified. Based on the log facies proportions and their stacking relationships, it is interpreted that the reservoirs in zone 1 (B to D) were deposited in a proximal reach of a meandering system, zone 2 (D to K) in a marginal marine setting, and zone 3 (K) in a distal reach of a meandering system. The dimensions of fluvial channels and channel belts were determined using empirical equations. The results were compared with the observed dimensions of fluvial channels and channel belts from the seismic horizon and stratal slices of the same intervals. Zones 1 and 3 are characterized by broad meander belts (1000–4000 m) compared to zone 2 (600–1300 m). Petrophysical analysis showed zones 1 and 3 have the better petrophysical properties compared to zone 2. Though zone 3 has the most well-developed sand bodies, the best reservoir interval is zone 1 because of its higher porosity. Although channel belt dimensions have a significant influence on reservoir connectivity, they do not seem to have control on reservoir properties. The channel belt dimensions obtained from the empirical equations and interpreted from the seismic geomorphology analysis were found to be strikingly similar. Since three-dimensional seismic data is not available everywhere and seismic imaging quality decreases with depth, empirical equations can be used to analyze fluvial reservoir parameters and their connectivity at greater depths.

关键词： Log motif Fluvial Channel belt dimension Seismic geomorphology Petrophysics Moragot field

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Real-time ventilation control based on a Bayesian estimation of occupancy

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Building Simulation 2021年第5期14卷 1487-1497页

作者： Haolia rahman Hwataik Han Politeknik Negeri Jakarta Jl.Prof.DR.G.A.SiwabessyDepok 16425Jawa BaratIndonesia Kookmin University 77 Jeongneung-roSeongbuk-guSeoul.02707R.O.Korea

Demand-controlled ventilation(DCV)is commonly implemented to provide variable amounts of outdoor air according to an internal ventilation *** objective of the present study is to investigate the applicability and the performance of occupancy-based DCV schemes in comparison with time-based and CO_(2)-based DCV *** do this,we apply the occupancy estimation method by the Bayes theorem to control the ventilation rate of an office building in *** investigated six cases in total(two cases for each control scheme).Experiments were conducted in a small office room with controllable ventilation equipment and relevant *** observed results indicated that the occupancy-based schemes relying on Bayes theorem could be applied successfully to perform continuous control of ventilation rates without causing recursive ***,we discussed the time delays associated with the control procedure,including dispersion time,sensor-response time,and data processing ***,we compared the performance of the proposed approach in six DCV cases in terms of a resultant indoor CO_(2) level and the total ventilation-air *** concluded that DCV control based on both occupancy and floor area provided the best conformity to the ASHRAE standard among the analyzed schemes.

关键词： occupancy estimation Bayesian MCMC carbon dioxide ventilation control

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Evaluation of the 8th AJCC staging system for pathologically versus clinically staged pancreatic adenocarcinoma: A time to revisit a dogma?

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Hepatobiliary & Pancreatic Diseases International 2018年第1期17卷 64-69页

作者： Omar Abdel-rahman Clinical Oncology Department Faculty of Medicine Ain Shams University

Background: The 8 th edition of the American Joint Committee on Cancer(AJCC) staging system for pancreatic exocrine adenocarcinoma has been released. The current study seeks to assess the 7 th and 8 th editions among patients registered within the surveillance, epidemiology and end results(SEER) ***: SEER database(2010–2013) has been accessed through SEER*Stat program and AJCC 8 th edition stages were reconstructed utilizing the collaborative stage descriptions. Kaplan–Meier analysis of overall survival and pancreatic cancer-specific survival analyses(according to both 7 th and 8 th editions and according to whether pathological or clinical staging were conducted) has been performed. Multivariate analysis of factors affecting pancreatic cancer-specific survival was also conducted through a Cox proportional hazard ***: A total of 18 948 patients with pancreatic adenocarcinoma were identified in the period from 2010–2013. Pancreatic cancer-specific survival among pathologically staged patients and according to the 8 th edition showed significant differences for all pair wise comparisons among different stages(P < 0.0001) except for the comparison between stage IA and stage IB(P = 0.307) and the comparison between stage IB and stage IIA(P = 0.116). Moreover, P value for stage IA vs IIA was 0.014; while pancreatic cancer-specific survival according to the 7 th edition among pathologically staged patients showed significant differences for all pair wise comparisons among different stages(P < 0.0001) except for the comparison between IA and IB(P = 0.072), the comparison between stage IIA and stage IIB(P = 0.065), the comparison between stage IIA and stage Ⅲ(P = 0.059) and the comparison between IIB and Ⅲ(P = 0.595).Among clinically staged patients(i.e. those who did not undergo initial radical surgery), the prognostic performance of both 7 th and 8 th stages for both overall survival and pancreatic cancer-specific survival was ***: Th

关键词： Pancreatic cancer AJCC SEER Prognosis

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Sensitivity analysis of the DehumReq model to evaluate the impact of predominant factors on dehumidification requirement of greenhouses in cold regions

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Information Processing in Agriculture 2023年第2期10卷 216-228页

作者： Md Sazan rahman Huiqing Guo Department of Mechanical Engineering University of Saskatchewan57 Campus driveSaskatoonSK S7N 5A9Canada Department of Bioresource Engineering McGill UniversityMacdonald Stewart Building21111 Lakeshore RoadSainte-Anne-de-BellevueQC H9X 3V9Canada

In this study,the sensitivity of a novel dehumidification requirement model(DehumReq)is analyzed to evaluate the effect of the predominant factors on the dehumidification needs of the *** hourly dehumidification demand and sensitivity coefficient(SC)are estimated for three different seasons:warm(July),mild(May),and cold(November),by using the local sensitivity analysis *** on SC values,the solar radiation,air exchange,leaf area index(LAI),and indoor setpoints(temperature,relative humidity(RH),and water vapor partial pressure(WVPP))have significant impact on the dehumidifi-cation needs,and the impact varies from season to *** parameters have a higher SC in summer,whereas solar radiation and LAI have a higher SC in mild *** dehumidification load increases 4 times of its base value with increasing solar radiation by 200 W/m^(2),and the highest LAI(10)caused 5 times increment of the *** changing of WVPP from its base value(1.5 kPa)to maximum(2.9 kPa)reduces the load 70%in *** exchange was found to be the most crucial parameter because it is the main dehumidification approach that has a large range and is easily adjustable for any *** air exchange by ventilation or infiltration will reduce the dehumidification load to zero in May and November and minimizes it to only nighttime load in *** the other parameters,higher ambient air RH and indoor air speed will result in higher the dehumidification load;whereas higher inner surface condensation will result in lower dehumidifi-cation *** result of this study will assist in the selection of the most efficient moisture control strategies and techniques for greenhouse humidity control.

关键词： Greenhouse Dehumidification DehumReq model Sensitivity analysis Solar radiation Air exchange

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