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Intensive care unit readmission in adult Egyptian patients undergoing living donor liver transplant:A single-centre retrospective cohort study

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World Journal of Hepatology 2022年第6期14卷 1150-1161页

作者： Manar Salah iman fawzy Montasser Hanaa A el Gendy Alaa A Korraa Gamal M elewa Hany Dabbous Hossam R Mahfouz Mostafa Abdelrahman Mohammed Hisham Goda Mohamed Mohamed Bahaa el-Din Mahmoud el-Meteini Heba A Labib Department of Tropical Medicine Ain Shams Center for Organ TransplantationAin Shams UniversityCairo 11566Egypt Department of Anaesthesia and Critical Care Ain Shams Centre for Organ TransplantationAin Shams UniversityCairo 11566Egypt Department of General Surgery and Liver Transplantation Ain Shams Centre for Organ TransplantationAin Shams UniversityCairo 11566Egypt

BACKGROUND Patients who undergo living donor liver transplantation(LDLT)may suffer complications that require intensive care unit(ICU)*** To identify the incidence,causes,and outcomes of ICU readmission after *** A retrospective cohort study was conducted on patients who underwent *** collected data included patient demographics,preoperative characteristics,intraoperative details;postoperative stay,complications,causes of ICU readmission,and *** were divided into two groups according to ICU readmission after hospital *** factors for ICU readmission were identified in univariate and multivariate *** The present study included 299 ***-one(10.4%)patients were readmitted to the ICU after *** who were readmitted to the ICU were older in age(53.0±5.1 vs 49.4±8.8,P=0.001)and had a significantly higher percentage of women(29%vs 13.4%,P=0.032),diabetics(41.9%vs 24.6%,P=0.039),hypertensives(22.6%vs 6.3%,P=0.006),and renal(6.5%vs 0%,P=0.010)patients as well as a significantly longer initial ICU stay(6 vs 4 d,respectively,Pficant independent risk factors for ICU readmission included recipient age(OR=1.048,95%CI=1.005-1.094,P=0.030)and length of initial hospital stay(OR=0.836,95%CI=0.789-0.885,Pfication of high-risk patients(older age and shorter initial hospital stay)before ICU discharge may help provide optimal care and tailor follow-up to reduce the rate of ICU readmission.

关键词： Intensive care units Liver transplantation Patient readmission Risk factors

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Charge transport properties and variable photo-switching of three-terminal Cs_(2)AgBiBr_(6) device

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Journal of Semiconductors 2024年第11期45卷 89-98页

作者： iman Biswas Arka Dey Jean Michel Nunzi Nilanjan Halder Aniruddha Mondal Department of Physics National Institute of Technology DurgapurDurgapur 713209India Department of Chemistry Queen’s UniversityKingstonOntario K7L3N6Canada Department of Physics Manipal University JaipurJaipurRajasthan 303007India

In this study,we present an in-depth exploration of charge transport phenomena and variable photo-switching characteristics in a novel double-perovskite-based three-terminal *** Cs_(2)AgBiBr_(6) thin film(Tf)was synthesized through a three-step thermal evaporation process followed by precise open-air annealing,ensuring superior film quality as confirmed by structural and morphological *** spectroscopy revealed distinct emissions at 2.28 and 2.07 eV,indicative of both direct and indirect electronic *** device exhibited space-charge limited current(SCLC)behaviour beyond 0.35 V,aligning with the relationship Current(I)∝Voltage(V)^(m),where the exponent m transitioned from≤1 to>*** analysis of Schottky parameters within the trap-filled limit(TfL)regime was conducted,accounting for variations in temperature and optical ***,the self-powered photodetector demonstrated outstanding performance under *** sensitivity of the device was finely tunable via the applied bias voltages at the third ***,an optimal bias voltage of±100μV yielded maximum responsivity(R)of 0.48 A/W and an impressive detectivity(D*)of 1.07×10^(9) Jones,highlighting the potential of this double-perovskite-based device for advanced optoelectronic applications.

关键词： double-perovskite charge-transport mechanism space-charge limited current(SCLC) three-terminal device voltage-dependent photo-switching

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Antioxidant activity and total phenolic and flavonoid content of the extract and chemical composition of the essential oil of Eremostachys laciniata collected from Zagros

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Asian Pacific Journal of Tropical Biomedicine 2017年第2期7卷 144-146页

作者： iman Bajalan Masoumeh Zand Masoud Goodarzi Mahin Darabi Young Researchers and elite Club Borujerd BranchIslamic Azad UniversityBorujerdIran Department of Agriculture College of AgricultureBorujerd BranchIslamic Azad UniversityBorujerdIran Department of Biology Borujerd BranchIslamic Azad UniversityBorujerdIran Department of Chemistry Faculty of Basic ScienceBorujerd BranchIslamic Azad UniversityBorujerdIran

Objective: To examine the chemical component of the essential oil of Eremostachys laciniata and evaluate antioxidant activity of the ***: The hydrodistillated essential oil was analyzed by gas chromatography-flame ionization detector and gas chromatography–mass spectrometry. Also, antioxidant activity, total phenolic and flavonoid content were determined by 2,2-diphenyl-1-picrylhydrazyl, folin-Ciocalteu and colorimetric method, ***: The major components of the essential oil were p-cymene(21.64%), linalool(17.93%), and a-pinene(11.42%). Also, the extract obtained by methanol showed a good antioxidant activity. The same extract also exhibited high phenolic and flavonoid ***: These results indicate that Eremostachys laciniata can be used in dietary applications with a potential to reduce oxidative stress.

关键词： Eremostachys laciniata GC–MS/fID DPPH p-Cymene

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Improvement of Surface Mechanical and Tribological Characteristics of L-PBf Processed Commercially Pure Titanium through Ultrasonic Impact Treatment

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Acta Metallurgica Sinica(English Letters) 2024年第6期37卷 1034-1046页

作者： iman Ansarian Reza Taghiabadi Saeid Amini Mohammad Hossein Mosallanejad Luca Iuliano Abdollah Saboori Department of Materials Science and Metallurgy Imam Khomeini International University(IKIU)QazvinIran Department of Mechanical Engineering University of KashanKashanIran Integrated Additive Manufacturing Center Department of Management and Production EngineeringPolitecnico di TorinoCorso Duca Degli Abruzzi 2410129TurinItaly

Multi-pass ultrasonic impact treatment(UIT)was applied to modify the microstructure and improve the mechanical and tribological characteristics at the near-surface region of commercially pure Ti(CP-Ti)specimens produced by the laser powder bed fusion(L-PBf)*** considerably refined the L-PBf process-related acicular martensites(α′-M)and produced a well-homogenized and dense surface microstructure,where the porosity content of 1-,3-,and 5-pass UITed samples was reduced by 43,60,and 67%,*** UITed samples showed an enhancement in their near-surface mechanical properties up to a depth of.about 300μ*** nanoindentation results for the 3-pass UITed sample revealed an increase of.about 53,45,and 220%in its nanohardness,H/E_(r),and H_(3)/E_(r)^(2)indices,*** stylus profilometry results showed that performing the UIT removed the L-PBf-related features/defects and offered a smooth *** roughness average(R_(a))and the skewness(R_(sk))of the 3-pass UITed sample were found to be lower than those of the L-PBfed sample by 95 and 223%,*** the UIT also enhanced the material ratio,where the maximum load-bearing capacity(~100%)in as-L-PBfed(as-built)and 3-pass UITed samples was obtained at 60-and 10-µm depths,*** tribological investigations showed that applying the UIT resulted in a significant reduction of wear rate and average coefficient of friction(COf)of *** instance,under the normal pressures of 0.05 and 0.2 MPa,the wear rate and COf of the 3-pass UITed sample were lower than those of the L-PBfed sample by 65 and 58%,and 20 and 17%,respectively.

关键词： Laser powder bed fusion Ultrasonic impact treatment Commercially pure Ti(CP-Ti) Surface mechanical properties Tribological properties

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Investigation on a mitigation scheme to resist the progressive collapse of reinforced concrete buildings

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frontiers of Structural and Civil Engineering 2012年第4期6卷 421-430页

作者： iman TABAEYE IZADI Abdolrasoul RANJBARAN Department of Civil Engineering Faculty of EngineeringUniversity of ShirazShirazIran

This study presents the investigation of the approach which was presented by Thaer *** Alrudaini to provide the alternate load path to redistribute residual loads and preventing from the potential progressive collapse of RC *** was proposed to transfer the residual loads upwards above the failed column of RC buildings by vertical cables hanged at the top to a hat steel braced frame seated on top of the building which in turn redistributes the residual loads to the adjacent *** this study a ten-storey regular structural building has been considered to investigate progressive collapse *** design is based on ACI 318-08 concrete building code for special RC frames and the nonlinear dynamic analysis is carried out using SAP2000 software,following UfC4-023-03 *** independent failure scenarios are adopted in the investigation,including six external removal cases in different floors and three removal cases in the first floor.A new detail is proposed by using barrel and wedge to improve residual forces transfer to the cables after removal of the *** results show that progressive collapse of building that resulted from potential failure of columns located in floors can be efficiently resisted by using this method.

关键词： prevent progressive collapse alternate load path reinforced concrete buildings nonlinear dynamic retrofitting cable steel hat braced frame barrel and wedge

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One-pot glycerol conversion to acrylic acid catalyzed by Cu modified HY zeolite synthesized from natural resources and pro-analytical precursor

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Carbon Resources Conversion 2024年第1期7卷 61-70页

作者： Monika Lumongga Putri Tambunan iman Abdullah Yuni Krisyuningsih Krisnandi Department of Chemistry Faculty of Mathematics and Natural SciencesUniversitas IndonesiaDepok 16424Indonesia Solid Inorganic framework Laboratory Department of ChemistryFaculty of Mathematics and Natural SciencesUniversitas IndonesiaDepok 16424Indonesia

The conversion of glycerol to acrylic acid was carried out by the one-pot process *** catalyst used in this conversion is Cu-modified HY zeolite synthesized using pro-analytical precursors and alternative precursors from natural resources i.e.,Indonesian natural zeolite and *** crystal structure and physicochemical properties of catalysts were determined by various characterization techniques such as XRD,fTIR,SEM-EDX,TEM,SAA,and TPD-NH_(3).Based on XRD analysis,it shows that HY and CuHY,both from synthetic and alternative precursors,are confirmed to have typical peaks of Y *** mapping images show a uniform distribution of Cu on the HY *** addition,the TEM analysis also shows uniform particle size *** results of catalytic glycerol conversion show that Cu-modified HY catalysts give a higher acrylic acid yield than *** results also show that the highest yield of acrylic acid was obtained in 27.5%and 25.8%at a dehydration time of 3 h using pro-analytical and natural resources CuHY catalyst,*** Cu-modified HY catalysts having weak acid sites show the best catalytic activity in the conversion of glycerol to acrylic acid.

关键词： Glycerol Acrylic acid HY zeolite Copper Dehydration and oxidation

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Thermoelectric properties of Indium doped skutterudite thick film synthesized by a facile technique of electrochemical deposition

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Journal of Materiomics 2023年第5期9卷 899-909页

作者： Nuur Syahidah Sabran iman Aris fadzallah Mohd faizul Mohd Sabri Takahito Ono Department of Mechanical Engineering Faculty of EngineeringUniversiti Malaya50603Kuala LumpurMalaysia Centre for Energy Sciences Universiti Malaya50603Kuala LumpurMalaysia Department of Mechanical System Engineering Graduate School of EngineeringTohoku UniversitySendai980-8579Japan

Doped/filled skutterudites are much studied materials due to their excellent thermoelectric ***,their synthesis and preparation is *** work synthesized indium(In)doped cobalt triantimonide(CoSb_(3))skutterudite thick films using a facile electrochemical deposition technique through chronoamperometric steps for 2 *** nominal composition of In element is found in the range of 0.55e0.23 for a stoichiometric condition of In doped CoSb_(3)thick *** early crystal growth of In doped films shows instantaneous nucleation and is controlled by the charge transfer process with diffusion coefficient,D of 10^(-5)cm^(2)/*** incorporation of In into the interstitial sites of CoSb_(3)cages is evident from the lattice constant(a)expansion as observed in *** optimum Seeback coefficient(S)of the 0.5 mmol In doped CoSb_(3)thick film is89.84 mV/K at 282 K,due to an increase in the carrier concentration(n~10^(20)cm^(-3)).The negative S is due to the electron donor behaviour of the ***,high electrical conductivity,s value(14.26 kS/m)contributes to a power factor(S2s)increment of 115.11 mW/(m$K2).The result shows a promising thermoelectric property of doped skutterudite synthesized by electrochemical deposition technique.

关键词： Indium electrochemical deposition Thermoelectric Thick film Skutterudites

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electrochemical Impedance of Ethanol Oxidation in Alkaline Media

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Chemical Research in Chinese Universities 2012年第1期28卷 19-25页

作者： DANAEE iman JAfARIAN Majid GOBAL fereydoon SHARAfI Mahboobeh MAHJANI Mohammad-ghasem Abadan faculty of Petroleum Engineering Petroleum University of Technology Abadan 63165-619 Iran Department of Chemistry K. N. Toosi University of Technology Tehran 15875-4416 Iran Department of Chemistry Sharif University of Technology Tehran 11365-9516 Iran

Nickel modified NiOOH electrodes were used for the electrocatalytic oxidation of ethanol in alkaline so lutions. The electro-oxidation of ethanol in a 1 mol/L NaOH solution at different concentrations of ethanol was stu died by ac impedance spectroscopy. electrooxidation of ethanol on Ni shows negative resistance on impedance plots. The impedance shows different patterns at different applied anodic potential. The influence of the electrode potential on impedance was studied and a quantitative explanation for the impedance of ethanol oxidation was given by means of a proposed mathematical model. At potentials higher than 0.52 V（vs. Ag/AgCl）, a pseudoinductive behavior was observed, but at those higher than 0.57 V, impedance patterns were reversed to the second and third quadrants. The conditions required for the reversing of impedance pattern were delineated with the impedance model.

关键词： Impedance Equivalent circuit Ethanol electrocatalytic Nickel

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Genetics of congenital and infantile nephrotic syndrome

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World Journal of Pediatrics 2019年第2期15卷 198-203页

作者： Sara Nawfal Sharief Nada Abdullatif Hefni Walaa Ali Alzahrani iman Ibrahim Nazer Marwa Abdullah Bayazeed Khalid A.Alhasan Osama Y.Safdar Sherif M.el-Desoky Jameela Abdulaziz Kari King Abdulaziz University JeddahKingdom of Saudi Arabia College of Medicine Pediatric DepartmentKing Saud UniversityRiyadhKingdom of Saudi Arabia Department of Pediatrics Faculty of MedicinePediatric Nephrology Center of ExcellenceKing Abdulaziz UniversityPO Box 80215Jeddah 21589Kingdom of Saudi Arabia

Background Congenital and infantile nephrotic syndrome (CNS and INS) are rare inherited defects in glomerular filtration involving a variety of gene *** study aimed to analyze all genetic mutations associated with congenital and infantile nephrotic syndrome treated at our *** also discussed our different approach secondary to culture and *** A retrospective single-center study of all children diagnosed as NS before the age of l year over a duration of over one *** Twenty-nine children (12 boys) were included in the *** median age (range) was 2.4 (0.1-12) months (20 CNS and 9 INS).Consanguinity was present in 90% of *** genetic analysis' results were only available for 20 *** underlying causative homozygous mutation was detected in 18 children (90%):NPHS1 (9),NPHS2(2),LAMB2(3),PLCE1(1),WT1(1),and ITSN1 novel mutation (2).One child had heterozygous mutation of NPHS2 and another child had heterozygous mutation of NPHS1 which could not explain the *** CNS cases were all managed with intermittent intravenous albumin infusion,ACEi,diuretics,and *** of the children were managed by nephrectomy followed by peritoneal dialysis (PD) because of limited *** one child achieved partial remission,while 15 children died at a median (range) age of 5.8 (1.25-29) *** remaining 14 children were followed up for an average of 36 (3.9-120) *** children progressed to end-stage kidney disease and PD was performed in only two *** NPHS1 is the main underlying cause of CNS and INS in our study *** and INS were associated with high morbidity and mortality.

关键词： Congenital nephrotic Infantile nephrotic Genetics Outcome

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ADAM12 is a costimulatory molecule that determines Th1 cell fate and mediates tissue inflammation

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Cellular & Molecular Immunology 2021年第8期18卷 1904-1919页

作者： Yawei Liu Robert Bockermann Mahdieh Hadi iman Safari Belinda Carrion Marie Kveiborg Shohreh Issazadeh-Navikas Neuroinflammation Unit Biotech Research&Innovation Centre(BRIC)Faculty of Health and Medical SciencesUniversity of CopenhagenOle Maaløes Vej 5DK-2200Copenhagen NDenmark BRIC Faculty of Health and Medical SciencesUniversity of CopenhagenOle Maaløes Vej 5DK-2200Copenhagen NDenmark

A disintegrin and metalloproteinase(ADAM)12 was previously found to be expressed in T cells in the inflamed ***,the function of ADAM12 in T-cell responses in general and in tissue inflammation has not been ***,we studied the role of ADAM12 in T-cell responses,fate determination on activation,and its functions in T cells to mediate tissue *** identified ADAM12 as a costimulatory molecule that is expressed on naive T cells and downregulated on ***12 mimics CD28 costimulatory signaling to activate and induce the proliferation of T-helper 1(Th1)*** ADAM12 fab antibodies trigger T-cell activation by amplifying TCR signaling to stimulate T-bet-mediated IfNγ*** of genomic ADAM12 and its knockdown in T cells diminished T-bet and IfNγproduction in Th1 cells,whereas other T cells,including Th17 cells,were ***12 had similar functions in vivo on myelin antigen(MOG_(35-55))-induced T-cell *** found that genetic loss of ADAM12 profoundly alleviated Th1-mediated neuroinflammation and thus disease severity in experimental autoimmune encephalomyelitis,a model of multiple *** profiling of MOG_(35-55)-specific ADAM12^(−/−)T cells revealed differentially expressed genes that are important for T-cell activation,proliferation,and costimulatory signaling and Th1 pathogenicity,consistent with their inability to cause T-cell-mediated skin inflammation in a model of adoptive delayed-type *** conclude that ADAM12 is a T-cell costimulatory molecule that contributes to the pathogenesis of tissue inflammation and a potential target for the treatment of Th1-mediated diseases.

关键词： T cells T-bet Th17 EAE DTH GM-CSf

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