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Long COVID in children and adolescents

World Journal of Pediatrics 2021年第5期17卷 495-499页

作者： Ali A.Asadi-Pooya Hamid Nemati Mina Shahisavandi Ali Akbari Amir Emami Mehrzad Lotfi Mahtab Rostamihosseinkhani Zohreh Barzegar Maryam Kabiri Zahra Zeraatpisheh Mohsen Farjoud-Kouhanjani anahita jafari Fateme Sasannia Shayan Ashrafi Masoume Nazeri Sara Nasiri Epilepsy Research Center Shiraz University of Medical SciencesShirazIran Department of Ncurology Jefferson Comprehensive Epilepsy CenterThomas Jefferson UniversityPhiladelphiaPAUSA Department of Anesthesiology School of Medicine.Shiraz University of Medical SciencesShirazIran Burn&Wound Healing Research Center Shiraz University of Medical SciencesShirazIran Medical Imaging Research Center Shiraz University of Medical SciencesShirazIran

Background To identify the prevalence and also the full spectrum of symptoms/complaints of children and adolescents who are suffering from long ***,we investigated the risk factors of long COVID in children and *** All consecutive children and adolescents who were referred to the hospitals anywhere in Fars province,Iran,from 19 February 2020 until 20 November 2020 were *** patients had a confirmed diagnosis of *** *** call to patients/parents,at least 3 months after their discharge from the hospital,we obtained their current status and information if their parents agreed to *** In total,58 children and adolescents fulillel the inclusion ***-six(448%)children/adolescents reported symptoms/complaints of long *** symptoms included fatigue in 12(21%),shortness of breath in 7(12%),exer-cise intolerance in 7(12%),weakness in 6(10%),and walking intolerance in 5(9%)*** age,muscle pain on admission,and intensive care unit admission were significantly associated with long *** Long COVID is a frequent condition in children and *** scientific community should inves-tigate and explore the pathophysiology of long COVID to ensure that these patients receive appropriate treatments for their condition.

关键词： Adolescents Children COVID-19 Coronavirus Chronic Pediatrics

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Seismic control of multi-degrees-of-freedom structures by vertical mass isolation method using MR dampers

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 503-510页

作者： Mohamad Shahrokh Abdi Masoud Nekooei Mohammad-Ali jafari Department of Civil Engineering Marivan BranchIslamic Azad UniversityMarivan ***Iran Department of Civil Engineering Science and Research BranchIslamic Azad UniversityTehran ***Iran Structural Department of Transmission and Distribution Research Center Niroo Research Institute(NRI)Tehran ***Iran

Vertical mass isolation(VMI)is one of the novel methods for the seismic control of *** this method,the entire structure is assumed to consist of two mass and stiffness subsystems,and an isolated layer is located among *** this study,the magnetorheological damper in three modes:passive-off,passive-on,and semi-active mode with variable voltage between zero and 9 volts was used as an isolated layer between two ***-degrees-of-freedom structures with 5,10,and 15 floors in two dimensions were examined under 11 pairs of near field *** each level,the displacement of MR dampers was taken into *** responses of maximum displacement,maximum inter-story drift,and maximum base shear in controlled and uncontrolled buildings were compared to assess the suggested approach for seismic control of the *** to the results,the semi-active control method can reduce the response by more than 12%compared to the uncontrolled mode in terms of maximum displacement of the mass subsystem of the *** method can reduce more than 16%and 20%of the responses compared to the uncontrolled mode in terms of maximum inter-story drift and base shear of the structure,respectively.

关键词： seismic control vertical mass isolation base shear magnetorheological damper semi-active control

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The Effect of Spironolactone Loading on the Properties of 3D-Printed Polycaprolactone/Gold Nanoparticles Composite Scaffolds for Myocardial Tissue Engineering

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Journal of Bionic Engineering 2024年第2期21卷 924-937页

作者： Sharareh Ghaziof Shahrokh Shojaei Mehdi Mehdikhani Mohammad Khodaei Milad jafari Nodoushan Department of Biomedical Engineering Central Tehran BranchIslamic Azad UniversityTehran***Iran Stem Cells Research Center Tissue Engineering and Regenerative Medicine InstituteCentral Tehran BranchIslamic Azad UniversityTehran***Iran Department of Biomedical Engineering Faculty of EngineeringUniversity of IsfahanIsfahan***Iran Materials Engineering Group Golpayegan College of EngineeringIsfahan University of TechnologyGolpayegan87717-67498Iran Hard Tissue Engineering Research Center Tissue Engineering and Regenerative Medicine InstituteCentral Tehran BranchIslamic Azad UniversityTehran***Iran

Engineered cardiac constructs(ECC)aid in the progression of regenerative medicine,disease modeling and targeted drug delivery to adjust and aim the release of remedial combination as well as decrease the side effects of *** this research,polycaprolactone/gold nanoparticles(PCL/GNPs)three-dimensional(3D)composite scaffolds were manufactured by 3D printing using the fused deposition modeling(FDM)method and then coated with gelatin/spironolactone(GEL/SPL).Scanning electron microscopy(SEM)and Fourier transform-infrared spectroscopy(FTIR–ATR)were applied to characterize the ***,drug release,biodegradation,behavior of the myoblasts(H9C2)cell line,and cytotoxicity of the 3D scaffolds were *** microstructural observation of the scaffolds reported interconnected pores with 150–300µm in *** 3D scaffolds were degraded significantly after 28 days of immersion in stimulated body fluid(SBF),with the maximum rate of GEL-coated 3D *** release from cross-linked GEL coating demonstrated the excess of drug release over time,and according to the control release systems,the drug delivery systems(DDS)went into balance after the 14th *** addition,cell culture study showed that with the addition of GNPs,the proliferation of(H9C2)was enhanced,and with GEL/SPL coating the cell attachment and viability were improved *** findings suggested that PCL/GNPs 3D scaffolds coated with GEL/SPL can be an appropriate choice for myocardial tissue engineering.

关键词： Polycaprolactone Gold nanoparticles Drug delivery systems Spironolactone Cell behavior Myoblasts

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Breeding maize of ideal plant architecture for high-density planting tolerance through modulating shade avoidance response and beyond

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Journal of Integrative Plant Biology 2024年第5期66卷 849-864页

作者： Fereshteh jafari Baobao Wang Haiyang Wang Junjie Zou Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China Graduate School of Chinese Academy of Agricultural Sciences Beijing 100081China National Nanfan Research Institute CAASSanya 572025China State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of Life SciencesSouth China AgriculturalUniversityGuangzhou 510642China

Maize is a major staple crop widely used as food,animal feed,and raw materials in industrial ***-density planting is a major factor contributing to the continuous increase of maize ***,high planting density usually triggers a shade avoidance response and causes increased plant height and ear height,resulting in lodging and yield *** plant height and ear height,more erect leaf angle,reduced tassel branch number,earlier flowering,and strong root system architecture are five key morphological traits required for maize adaption to high-density *** this review,we summarize recent advances in deciphering the genetic and molecular mechanisms of maize involved in response to high-density *** also discuss some strategies for breeding advanced maize cultivars with superior performance under high-density planting conditions.

关键词： flowering time high-density planting leaf angle maize plant architecture plant height/ear height root architecture tasselbranch

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Theoretical framework of the Isfahani style: Inspiring sustainable aspects of a vernacular urban development

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Frontiers of Architectural Research 2024年第2期13卷 349-369页

作者： Hatef jafari Sharami Seyed Jamalaldin Hosseini Department of Architecture and Urbanism University of EyvanekeyEyvanekey 99888-35918Iran Faculty of Civil and Architecture University of EyvanekeyEyvanekey 99888-35918Iran

The Isfahani style represents a method of traditional Iranian architecture and urban development that existed in the early 20th century and is regarded as a leading model in most traditional Iranian cities. It exhibits several vigorous features contributing to its recognition as a traditional approach to sustainable architecture and urban development. This research endeavors to reveal a theoretical framework beneath these inspiring aspects using the typology of sustainable modern forms, including the hierarchy, passive design strategies, compactness, density, diversity, mixed land use, pluralism, balance, good composition, and integration over time. To this end, the study employs qualitative research methods, drawing from traditional samples, to identify innovative, energy and socially efficient, and low-impact strategies implemented in this vernacular architecture of Iran's semi-arid and hot climates. The findings revealed that the neighborhood concept as a local and plural community (Mahalla) was a vital phenomenon in Iran's urban development. Apparently, the demise of this paradigm effectively played an important role in the numerous challenges regarding the social, energy, and economic viability of modern Iranian cities. Hence, this study presented theoretical frameworks—aligned with sustainable concepts—from the Isfahani style through its analysis, classification, and interpretation, which can contribute to modern urban development.

关键词： Isfahani style Vernacular urban development Sustainable urban development Iranian cities Vernacular architecture

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Nurses'attitude toward patients'safety climate during COVID-19 pandemic:a cross-sectional study

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Frontiers of Nursing 2024年第1期11卷 39-46页

作者： Asra Nassehi Kobra Ghorbanzadeh Somaye Moayedi Javad jafari Parvin Mahmoodi Mojtaba jafari Department of Nursing Bam University of Medical SciencesBamIran Department of Nursing Khalkhal University of Medical SciencesKhalkhalIran Community Nursing Research Center Department of NursingZahedan University of Medical SciencesZahedanIran Clinical Care Research Center Department of NursingNursing and Midwifery SchoolKurdistan University of Medical SciencesSanandajIran

Objective:Patient safety is a fundamental factor in improving the quality of care provided in ***,it is considered a significant parameter by all healthcare organizations around the *** present study was conducted to investigate the attitude of nurses toward the patient safety climate during the Coronavirus Disease 2019(COVID-19)pandemic in the southeast of ***:This is a cross-sectional descriptive *** all the nurses working in one of the hospitals in the southeast of Iran,171 nurses participated in the study through convenience sampling *** survey was conducted between June 1 and July 30,2020.A 2-part questionnaire including demographic information and an assessment of nurses'attitudes toward patients'safety climate was used for data collection in *** content validity of the scale is(0.77)and reliability was re-calculated and confirmed by the present study with Cronbach's alpha(α=0.9).Data were analyzed by SPSS 20(IBM Corporation,Armonk,New York,United States)using descriptive and analytical statistical ***:The mean score of safety climates was 3.2±5.20(out of 5 scores).The results showed that among all dimensions of the safety climate,only the education dimension was statistically significant between males and females(P<0.001).Also,there was a significant relationship between the overall average of the safety climate and its dimensions according to the people's position only in the dimension of supervisors'attitude(P<0.01)and burnout(P<0.01).Additionally,a significant correlation between the education level and the overall score of safety climate(P<0.01),as well as the supervisor's attitude dimension(P<0.01),was ***:The results showed that the safety climate was at a relatively favorable *** the impact of nurses'attitudes on the safety climate of patients,its improvement seems *** is recommended to design training courses and educate nurses in order to promote a p

关键词： COVID-19 Iran nurses patient safety climate

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Optimization Algorithms of PERT/CPM Network Diagrams in Linear Diophantine Fuzzy Environment

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 1095-1118页

作者： Mani Parimala Karthikeyan Prakash Ashraf Al-Quran Muhammad Riaz Saeid jafari Department of Mathematics Bannari Amman Institute of TechnologySathyamangalamTamil Nadu638401India Basic Sciences Department Preparatory Year DeanshipKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Mathematics University of the PunjabLahorePakistan College of Vestsjaelland South Herrestraede 11Slagelse4200Denmark

The idea of linear Diophantine fuzzy set(LDFS)theory with its control parameters is a strong model for machine learning and optimization under *** activity times in the critical path method(CPM)representation procedures approach are initially static,but in the Project Evaluation and Review Technique(PERT)approach,they are *** study proposes a novel way of project review and assessment methodology for a project network in a linear Diophantine fuzzy(LDF)*** LDF expected task time,LDF variance,LDF critical path,and LDF total expected time for determining the project network are all computed using LDF numbers as the time of each activity in the project *** primary premise of the LDF-PERT approach is to address ambiguities in project network activity timesmore simply than other approaches such as conventional PERT,Fuzzy PERT,and so *** LDF-PERT is an efficient approach to analyzing symmetries in fuzzy control systems to seek an optimal *** also present a new approach for locating LDF-CPM in a project network with uncertain and erroneous activity *** the available resources and activity times are imprecise and unpredictable,this strategy can help decision-makers make better judgments in a project.A comparison analysis of the proposed technique with the existing techniques has also been *** suggested techniques are demonstrated with two suitable numerical examples.

关键词： Linear Diophantine fuzzy graphs project management PERT CPM linear Diophantine fuzzy numbers score function accuracy function

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The Relationship between Extreme Precipitation Events in East Africa during the Short Rainy Season and Indian Ocean Sea Surface Temperature

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Journal of Geoscience and Environment Protection 2024年第9期12卷 1-16页

作者： jafari Swalehe Chobo Liwei Huo School of Atmospheric Sciences Key Laboratory of Meteorological Disaster of Ministry of Education Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and Technology Nanjing China Tanzania Meteorological Authority (TMA) Research and Applied Meteorology Climatology and Climate Change Section Tanzania Meteorological Authority Dar es Salaam Tanzania

The East African short rainy season (October-November-December) is one of the major flood seasons in the East African region. The amount of rainfall during the short rainy season is closely related to the lives of the people and the socio-economic development of the area. By using precipitation data and sea surface temperature data, this study reveals the spatial and temporal variation patterns of extreme precipitation during the East African short rainy season. Key findings include significant rainfall variability, with Tanzania experiencing the highest amounts in December due to the southward shift of the Intertropical Convergence Zone (ITCZ), while other regions receive less than 100 mm. Extreme rainfall events (90th percentiles) are evenly distributed, averaging 2 to 10 days annually. Historical data shows maximum seasonal rainfall often peaks at 15 mm, with frequent occurrences of daily rainfall exceeding 10 mm during OND. Additionally, a positive correlation (0.48) between OND precipitation extremes and Indian Ocean Dipole (IOD) anomalies is statistically significant. These findings highlight the climatic variability and potential trends in extreme rainfall events in East Africa, providing valuable insights for regional climate adaptation strategies.

关键词： East Africa Sea Surface Temperature (SST) Extreme Rainfall Short Rains Season Indian Ocean Dipole (IOD)

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Respiratory complications of propofol,sevoflurane,and dexmedetomidine anesthesia for fiberoptic bronchoscopy in children aged 1 month to 3 years:a randomized trial

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南方医科大学学报 2024年第9期44卷 1631-1636页

作者： Amir Shafa Mohammad Montasery Sedighe Shahhosseini Majid Keivanfar Asieh Maghami Mehr Mahtab Ebrahim Babaei Mohammad jafari Department of Anesthesiology Anesthesiology and Critical Care Research Center Department of Pediatrics Isfahan University of Medical SciencesIsfahanIran Department of Statistics Yazd UniversityYazdIran Departments of Obstetrics and Gynecology Shahrekord University of Medical SciencesShahrekordIran

Objective To evaluate the effect of propofol,sevoflurane,and dexmedetomidine on respiratory complications inchildren undergoing fiberoptic bronchoscopy(FOB).Methods This double-blind randomized clinical trial was conductedamong 120 children aged 1 month to 3 years undergoing *** patients were randomized into 3 groups(n=40)foranesthesia induction with sevoflurane inhalation,1 mg/kg propofol,or 1μg/kg dexmedetomidine before bronchoscopy,andthe changes in hemodynamic parameters,sedation level,and respiratory complications during and after the procedure *** The patients'heart rate during bronchoscopy was significantly lower and the mean arterial blood pressuresignificantly higher in dexmedetomidine group than in sevoflurane and propofol groups(P<0.05).Cough duringbronchoscopy did not occur in any of the cases in propofol group,while the highest frequency of cough was recorded indexmedetomidine *** incidence of laryngospasm in the propofol group(12.5%)was significantly lower than those insevoflurane and dexmedetomidine groups(30%and 32.5%,respectively)(P<0.05).Conclusion Sevoflurane and propofol aresafe and suitable for anesthesia induction in children below 3 years of age undergoing diagnostic FOB and can achieve bettersedative effect and lower the incidences of cough and respiratory complications as compared with dexmedetomidine.

关键词： fiberoptic bronchoscopy propofol sevoflurane dexmedetomidine children

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Late infection after peri-orbital autologous micro-fat graft:a case presentation and literature review

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 603-606页

作者： Farzad Pakdel Hassan Asadigandomani Melika Arab Bafrani Zohreh Nozarian Zohre Abedinifar Niloofar Pirmarzdashti Behzad jafari Zaynab Siami Department of Oculofacial Plastic Surgery Farabi HospitalSchool of MedicineTehran University of Medical SciencesTehran ***Iran Craniomaxillofacial Research Center Tehran University of Medical SciencesTehran ***Iran Department of Ophthalmology School of MedicineTehran University of Medical SciencesTehran ***Iran Department of Pathology Farabi HospitalSchool of MedicineTehran University of Medical SciencesTehran ***Iran Department of Microbiology Farabi HospitalSchool of MedicineTehran University of Medical SciencesTehran ***Iran Pediatric Cell and Gene Therapy Research Center Children’s Medical CenterSchool of MedicineTehran University of Medical SciencesTehran ***Iran

Citation:Pakdel F,Asadigandomani H,Arab Bafrani M,Nozarian Z,Abedinifar Z,Pirmarzdashti N,jafari B,Siami *** infection after peri-orbital autologous micro-fat graft:a case presentation and literature *** J Ophthalmol ... 详细信息

关键词： graft orbital after

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