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Life-threatening constrictive pericarditis accompanied by synthetic cannabinoid use:A case report and literature review

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Journal of Acute Disease 2024年第3期13卷 116-120页

作者： Mahsa Behnemoon Razieh Omidvar Zeinab Sadat Fattah Jahromi Alireza Salmanipour erfan kohansal Department of Cardiology School of MedicineUrmia University of Medical SciencesUrmiaIran Rajaie Cardiovascular Medical and Research Institute Iran University of Medical SciencesTehranIran

Rationale:Synthetic cannabinoids are increasingly used as recreational drugs and have been associated with adverse cardiovascular ***,reports of synthetic cannabinoids accompanied by constrictive pericarditis are ***’s concern:A 28-year-old male with a history of synthetic cannabinoid(Bonzai)abuse presented with chest discomfort,dyspnea,and lower extremity *** revealed reduced left ventricular ejection fraction,elevated inflammatory markers,low electrocardiogram voltages,and atrial ***:Chest spiral computerized tomography scan and chest X-ray demonstrated pericardial *** magnetic resonance imaging and right heart catheterization were done to confirm the possibility of constrictive *** on the patient’s addiction history and exclusion of rheumatologic and infectious causes,it was supposed that constrictive pericarditis and cardiomyopathy may be accompanied by synthetic cannabinoid ***:The patient received standard medical therapy,including loop diuretics for cardiomyopathy and constrictive *** ablation was recommended for his rhythm control,and he was planned for close monitoring of clinical and echocardiographic response and evaluation of the need for surgical pericardiectomy in the ***:After 6 months follow-up,echocardiographic exam revealed no significant improvement in ventricular ***,due to the high surgical risk,the patient’s poor compliance,and the continuation of drug abuse,he was not a good candidate for surgery according to our heart team’s ***:Synthetic cannabinoids can trigger constrictive pericarditis,and clinicians should consider them when evaluating patients with compatible symptoms and exposure *** research on the cardiovascular effects of synthetic cannabinoids is needed and public education on potential harms is warranted.

关键词： Bonzai Constrictive pericarditis Synthetic cannabinoids Cardiomyopathy Myocarditis

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Wettability modification effects on relative permeability end-points:Comparative analysis of surfactant agents for enhanced oil recovery

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Petroleum Research 2024年第2期9卷 206-218页

作者： erfan Hosseini Negar Hosseini Mohammad Sarmadivaleh Exploration Directorate National Iranian Oil Company(NIOC)TehranIran Department of Petroleum Engineering Islamic Azad University(IAU)IlamIran WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWestern AustraliaAustralia

This research examines the impact of wettability alteration on the end points of relative permeability,a crucial property of fluids and porous media that influences the displacement processes of immiscible fluids through such *** estimation of the mobility ratio for oil recovery relies on these end points,which are influenced by connate water saturation and residual oil *** investigate this relationship,carbonate rock is generally subjected to wettability alteration using surfactant agents,and core flooding is employed to determine the relative permeability before and after the *** wettability of the rock is commonly assessed through contact angle *** surfactants,TritonX-100(Tx-100)and Cedar,were tested in reducing the wettability of the porous media for *** contact angle measurements revealed that Tx-100 was more effective for this purpose than ***,the relative permeability tests indicated that both surfactants decreased residual oil saturation,but Tx-100 also improved system *** contrast,Cedar reduced residual oil saturation but increased system pressure,possibly because of its high *** results also demonstrate that injecting Tx-100 leads to a 14%increase in ultimate oil recovery compared with water injection,while Cedar injection increased the recovery factor by 5%.This difference may be attributed to the incomplete coverage of the pore wall by Cedar or its weaker chemical structure than ***,in carbonate cores,neither non-ionic surfactant enhanced oil recovery.

关键词： Wettability alteration Relative permeability Core flooding Tx-100 Cedar Contact angle

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Fabrication of La,Ce co-doped ZnO nanorods for improving photodegradation of methylene blue

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Journal of Rare Earths 2024年第1期42卷 76-83,I0003页

作者： erfan Hakim Azmal Zaid Jin-Chung Sin Sze-Mun Lam Abdul Rahman Mohamed School of Chemical Engineering Universiti Sains Malaysia(USM)14300Nibong TebalPenangMalaysia College of Environmental Science and Engineering Guilin University of TechnologyGuilin541004China Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control Guilin University of TechnologyGuilin541004China Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of TechnologyGuilin541004China Faculty of Engineering and Green Technology Universiti Tunku Abdul RahmanJalan UniversitiBandar Barat31900KamparPerakMalaysia

La,Ce co-doped ZnO nanorods(ZnLC)were synthesized through a one-step solvothermal *** photocatalysts were characterized by X-ray diffraction,Raman spectroscopy,field-emission scanning electron microscopy,energy dispersive X-ray,transmission electron microscopy,UV-vis diffuse reflectance spectroscopy and photo luminescence *** La and Ce doping enhanced the visible light absorption ability of ZnLC and a red shift was detected for *** simulated solar light irradiation,the ZnO doped with 3 at%La and 1 at%Ce(ZnLC1)degrades methylene blue(MB)more effectively than those of pure ZnO,La-doped ZnO(ZnL)and commercially available *** improved photocatalytic performance of ZnLC1 can be attributed to the high charge separation efficiency as demonstrated by the photoluminescence ***,the photocatalytic experiments reveal that several parameters have their own impact on the MB *** a variety of radical scavengers,it is discovered that superoxide anion radical plays a crucial role in the degradation of *** ZnLC1 is also reused several times without noticeable decrease of photoactivity,indicating that it has a substantial potential for environmental remediation applications.

关键词： ZnO Lanthanum Cerium Co-doping Photodegradation Rare earths

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Evaluating the characteristics of geological structures in karst groundwater inflow, Nowsud Tunnel

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Journal of Mountain Science 2024年第10期21卷 3434-3452页

作者： BAYAT Narges SADEGHI erfan NASSERY Hamid Reza Department of Minerals and Groundwater Resources Faculty of Earth SciencesShahid Beheshti UniversityEvin AveTehran ***Iran Ministry of Energy Kordestan ExpyTehran ***Iran

Highly permeable geological structures such as dissolution channels, open fractures, and faults create environmental challenges regard to hydrological and hydrogeological aspects of underground construction, often causing significant groundwater inflow during drilling due to the limitations of empirical and analytical methods. This study aims to identify the geological factors influencing water flow into the tunnel. High-flow zones' geological features have been identified and examined for this purpose. According to the geological complexity of the Nowsud tunnel, presence of different formations with different permeability and karstification have led to a high volume of underground inflow water (up to 4700 L/s) to the tunnel. The Nowsud tunnel faces significant geological and hydrogeological challenges due to its passage through the Ilam formation's LI2 unit, characterized by dissolution channels, faults, and fractures. The highest inflow rate (4700 L/s) occurred in the Hz-9 zone within the Zimkan anticline. The relationship between geological features and groundwater inflow indicates that anticlines are more susceptible to inflow than synclines. Additionally, different types of faults exhibit varying hydraulic effects, with strike-slip faults having the most significant impact on groundwater inflow, thrust faults conducting less water into the tunnel, and inflow through normal faults being negligible compared to the other two types of faults. The novelty of this paper lies in its detailed analysis of geological features influencing groundwater inflow into the Nowsud tunnel, providing empirical data on high-flow zones and differentiating the hydraulic effects of various fault types, which enhances the understanding and prediction of groundwater inflow in underground constructions.

关键词： Geological structures Groundwater inflow Hydrogeology Nowsud tunnel Karst

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Developing a phenomenological model to simulate single and mixed scale formation during flow in porous media:Coupling a salt precipitation model with an ion transport equation under dynamic conditions

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Petroleum Research 2024年第1期9卷 17-36页

作者： erfan Hosseini Dana Mohammad Nazar Negar Hosseini Mohammad Sarmadivaleh Exploration Directorate National Iranian Oil Company(NIOC)TehranIran Institute of Physical Chemistry and Polymer Physics Leibniz Institute of Polymer Research DresdenDresdenGermany Department of Petroleum Engineering Islamic Azad University(IAU)IlamIran WA School of Mines:Minerals Energy and Chemical EngineeringCurtin UniversityPerthWestern AustraliaAustralia

Water flooding and pressure maintenance are recommended to improve oil recovery practices after low recovery of petroleum reservoirs occurs during primary *** crystal formation is a frequent occurrence when using these *** experimental,numerical,and theoretical studies have been done on the mechanisms underlying scaling and permeability reduction in porous media;however,there has not been a satisfactory model *** study developed a phenomenological model to predict formation damage caused by salt *** with existing models,which provide a scaling tendency,the proposed model predicts the profile of scale *** salt precipitation model simulates reactive fluid flow through porous media.A thermodynamic,kinetic,and flow hydrodynamic model was developed and coupled with the ion transport equation to describe the movement of ***,a set of carefully designed dynamic experiments were conducted and the data were compared with the model *** forecasts and experimental data were observed to have an average absolute error(AAE)ranging from 0.68%to 5.94%,which indicates the model's suitability.

关键词： Improved oil recovery Water flooding Formation damage Scaling tendency Salt precipitation

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Horizontal borehole azimuth optimization for enhanced stability and coal seam gas production

Rock Mechanics Bulletin

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Rock Mechanics Bulletin 2024年第1期3卷 115-126页

作者： erfan Saber Qingdong Qu Saiied MAminossadati Yiran Zhu Zhongwei Chen School of Mechanical and Mining Engineering The University of QueenslandQueensland4072Australia Commonwealth Scientific and Industrial Research Organization(CSIRO) Mineral ResourcesQCATQueensland4069Australia

Horizontal boreholes have been widely used to extract natural gas from coal ***,these boreholes can encounter severe instability issues leading to production *** drilling azimuth is a potential solution for enhancing borehole stability while considering gas *** this work,we improved and implemented a dual-porosity,fully coupled geomechanical-hydraulic numerical model into COMSOL Multiphysics to investigate into this *** sophisticated numerical model incorporates various critical factors,including desorption-induced matrix shrinkage,stress-dependent anisotropic fracture permeability,and the interactions of gas flow and reservoir deformation in matrices and fractures.A suite of simulation scenarios(e.g.,varying coal strength)was carried out to quantify the impact of drilling azimuth on coal permeability evolution,cumulative gas production,and the borehole break-out width for Goonyella Middle Seam of Bowen Basin,*** model was calibrated against both theoretical permeability values and field gas production *** to the lack of directly measured matrix permeability data,the actual gas production was used to back calculate the best-matched matrix permeability,which is 0.65μD for this particular ***,based on the breakout shape and induced volumetric strains around the borehole,drilling along the maximum horizontal stress does not necessarily lead to the best stability of the borehole,as generally believed.A drilling azimuth between 0and 60results in similar breakout width,whereas a drilling azimuth between 60and 90achieves the most efficient gas *** considering both gas production efficiency and borehole stability,for this particular reservoir condition,the optimum drilling azimuth is determined to be between 45and 60.This study presents a practical approach for determining the optimum drilling azimuth in coal seam gas extraction through in seam boreholes.

关键词： Coal seam gas Borehole stability Gas desorption Directional fracture permeability Borehole break-out

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Predicting liver function after hemihepatectomy in patients with hepatocellular carcinoma using different modalities

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World Journal of Clinical Oncology 2024年第6期15卷 783-785页

作者： erfan Taherifard Anwaar Saeed Department of Medicine University of Pittsburgh Medical CenterPittsburghPA 15232United States UPMC Hillman Cancer Center University of Pittsburgh Medical CenterPittsburghPA 15232United States

In response to *** et al's study on prognostic factors for post-hemihep-atectomy outcomes in hepatocellular carcinoma(HCC)patients,this critical review identifies methodological limitations and proposes enhancements for future *** the study identifies liver stiffness measure and standard residual liver volume as potential predictors,concerns regarding small sample size,reliance on biochemical markers for safety assessment,and inadequate ad-justment for confounding variables are *** for rigorous methodology,including robust statistical analysis,consideration of confounding factors,and selection of outcome measures with clinical components,are proposed to strengthen prognostic ***,validation of novel evaluation models is crucial for enhancing clinical applicability and advancing understanding of postoperative outcomes in patients with HCC undergoing hem-ihepatectomy.

关键词： Hepatocellular carcinoma Liver cirrhosis Hepatectomy Liver failure Standard residual liver volume Liver stiffness

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原位测量斑马鱼胚胎发育过程中三维牵引力和硬度的方法

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医用生物力学 2024年第S1期 229-229页

作者：罗君雨 erfan Mohagheghian 韦富香汪宁上海交通大学医学院附属瑞金医院 Department of Mechanical Science and Engineering University of Illinois at Urbana Champaign 华中科技大学生命科学与技术学院 College of Engineering Northeastern University

目的在胚胎发育过程中,细胞与细胞及周围基质之间存在复杂多变的多模态作用力,但目前没有可以测量活体胚胎内三维生物力的方法及原位测量细胞牵引力和硬度的手段,这限制了对胚胎发育过程中生物力变化的研究及对胚胎发育过程的全面认识...

目的在胚胎发育过程中,细胞与细胞及周围基质之间存在复杂多变的多模态作用力,但目前没有可以测量活体胚胎内三维生物力的方法及原位测量细胞牵引力和硬度的手段,这限制了对胚胎发育过程中生物力变化的研究及对胚胎发育过程的全面认识。方法本研究利用新开发的定量测量细胞多模态牵引力的弹性微球和原位测量细胞牵引力和硬度的硬度可变型探针,测定斑马鱼胚胎中细胞间牵引力和硬度。结果将弹性微球注射在斑马鱼受精卵中,测定胚胎发育过程中生物力时空变化,发现不同位置的弹性微球在不同时间所受的法向牵引力和剪切牵引力大小和方向都不同。对斑马鱼胚胎4.5 hpf至12 hpf内弹性微球所受的牵引力量化,发现不同时间细胞产生不同振幅的法向牵引力振荡。将硬度可变型探针注射进斑马鱼胚胎,先施加2500高斯的强磁场将探针磁化后,再施加15高斯、0.1 Hz的正弦磁场使其旋转测定斑马鱼胚胎硬度,随后用紫外线短时间照射使该探针软化,探针在细胞的挤压下发生形变,测量同一位置斑马鱼胚胎细胞产生的牵引力。结论利用弹性微球测定斑马鱼胚胎发育过程中三维牵引力存时空变化和不同发育时间细胞法向牵引力振荡;利用硬度可变形探针测定斑马鱼胚胎细胞同一位置的硬度和牵引力。

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小鼠胚胎发育过程中三维生物力的定量研究

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医用生物力学 2024年第S1期 410-410页

目的小鼠的早期胚胎外早期胚胎在体内迁向子宫的途中,胚胎细胞不断进行分裂和迁移,在此过程中囊胚不断进行膨胀和收缩,会对透明带进行挤压并产生力的作用。胚胎进入子宫后,必须从透明带上的小孔挤压出“壳”才能着床。但是胚胎细胞与...

目的小鼠的早期胚胎外早期胚胎在体内迁向子宫的途中,胚胎细胞不断进行分裂和迁移,在此过程中囊胚不断进行膨胀和收缩,会对透明带进行挤压并产生力的作用。胚胎进入子宫后,必须从透明带上的小孔挤压出“壳”才能着床。但是胚胎细胞与透明带之间的相互作用力,目前还知之甚少。方法本课题组开发出一种定量测量细胞多模态牵引力的弹性微球,注射进的小鼠16细胞的桑椹胚期胚胎(E3.0)内测定小鼠活体胚胎对透明带的三维生物力的变化。结果应用弹性微球测定小鼠囊胚与透明带之间动态生物力,发现小鼠胚胎从囊胚期至胚胎从透明带孵出过程中,小鼠胚胎对透明带施加的法向牵引力和剪切牵引力呈振荡变化规律。同一个小鼠胚胎不同位置弹性微球在同一时刻所受的牵引力大小和方向不同。发现同一个发育时期多个小鼠囊胚腔内弹性微球上的牵引力分布是不对称的,同时存在拉伸牵引力和压缩牵引力。结论本研究利用弹性微球测定小鼠早期胚胎发育过程中产生的牵引力,发现胚胎发育过程中牵引力的变化存在显著的时空差异,小鼠囊胚腔内细胞产生的牵引力分布不均匀,对全面认识细胞力学属性对胚胎发育的影响具有重要意义。

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The influence of surface effects on Frederiks transition in nematic liquid crystal doped with ferroelectric nanoparticles

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Chinese Physics B 2018年第4期27卷 357-362页

作者： erfan Kadivar Mojtaba Farrokhbin Department of Physics Shiraz University of Technology Department of Physics Faculty of SciencesYazd University

Motivated by our recent work,in this work,we present the numerical study of the anchoring effect on the Frederiks threshold field in a nematic liquid crystal doped with ferroelectric colloidal *** weak anchoring conditions,we employ the relaxation method and Maxwell construction to numerically solve the Euler–Lagrangian differential equation for the total free energy together the Rapini–Papoular surface energy to take into account anchoring of nematic liquid crystal molecules at the *** this study,we focus our attention on obtaining the phase diagrams of Frederiks transition for different values of anchoring strength which have been not computed in our previous *** this way,the effect of nanoparticle radius,nanoparticle volume fraction,nanoparticle polarization,and cell thickness on the Frederiks transition for different values of anchoring conditions are summarized in the phase *** numerical results show that by increasing the nanoparticles size and nanoparticle volume fraction in the ferronematic system,the Frederiks threshold field is strongly reduced.

关键词： anchoring surface effect ferronematics Frederiks transition Maxwell construction

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