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Continuous flow pyrolysis of virgin and waste polyolefins:a comparative study,process optimization and product characterization

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Frontiers of Chemical Science and Engineering 2024年第6期18卷 133-149页

作者： Ecrin Ekici Güray yildiz Magdalena Joka yildiz Monika Kalinowska ErolŞeker Jiawei Wang Karlsruhe Institute of Technology Institute of Catalysis Research and TechnologyEggenstein-Leopoldshafen 76344Germany Izmir Institute of Technology Faculty of EngineeringDepartment of Energy Systems EngineeringIzmir 35430Türkiye Department of Materials Engineering and Production Faculty of Mechanical EngineeringBialystok University of TechnologyBialystok 15-351Poland Department of Agricultural and Food Engineering and Environmental Development Institute of Civil Engineering and EnergeticsFaculty of Civil Engineering and Environmental SciencesBialystok University of Technology15-351 BialystokPoland Department of Chemistry Biology and BiotechnologyInstitute of Civil Engineering and EnergeticsFaculty of Civil Engineering and Environmental SciencesBialystok University of TechnologyBialystok 15-351Poland Izmir Institute of Technology Faculty of EngineeringDepartment of Chemical EngineeringIzmir 35430Türkiye Energy and Bioproducts Research Institute(EBRI) Aston UniversityBirmingham B47ETUnited Kingdom

Under optimal process conditions,pyrolysis of polyolefins can yield ca.90 wt%of liquid product,i.e.,combination of light oil fraction and heavier *** this work,the experimental findings reported in a selected group of publications concerning the non-catalytic pyrolysis of polyolefins were collected,reviewed,and compared with the ones obtained in a continuously operated bench-scale pyrolysis *** process parameters were used for the pyrolysis of waste and virgin counterparts of high-density polyethylene,low-density polyethylene,polypropylene and a defined mixture of those(i.e.,25:25:50 wt%,respectively).To mitigate temperature drops and enhance heat transfer,an increased feed intake is employed to create a hot melt plastic *** 1.5 g·min^(-1) feed intake,1.1 L·min^(-1) nitrogen flow rate,and a moderate pyrolysis temperature of 450℃,the formation of light hydrocarbons was favored,while wax formation was limited for polypropylene-rich *** of virgin plastics yielded more liquid(maximum 73.3 wt%)than that of waste plastics(maximum 66 wt%).Blending polyethylenes with polypropylene favored the production of liquids and increased the formation of gasoline-range *** products were mainly composed of C3 hydrocarbons,and no hydrogen production was detected due to moderate pyrolysis temperature.

关键词： waste plastics polyolefins chemical recycling pyrolysis alternative fuels waste-to-energy

Metabolic-associated Fatty Liver Disease(MAFLD):A Multi-systemic Disease Beyond the Liver

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Journal of Clinical and Translational Hepatology 2022年第2期10卷 329-338页

作者： eda Kaya Yusuf Yilmaz Department of Internal Medicine Ruhr University BochumUniversity Hospital Knappschaftskrankenhaus BochumBochumGermany Department of Gastroenterology School of MedicineMarmara UniversityIstanbulTurkey Liver Research Unit Institute of GastroenterologyMarmara UniversityIstanbulTurkey

Nonalcoholic fatty liver disease(NAFLD)is a multisystemic clinical condition that presents with a wide spectrum of extrahepatic manifestations,such as obesity,type 2 diabetes mellitus,metabolic syndrome,cardiovascular diseases,chronic kidney disease,extrahepatic malignancies,cogni-tive disorders,and polycystic ovarian *** NAFLD patients,the most common mortality etiology is cardiovascular disorders,followed by extrahepatic malignancies,diabetes mellitus,and liver-related ***,the severity of extrahepatic diseases is parallel to the severity of *** clinical practice,awareness of the associations of concomitant diseases is of major importance for initiating prompt and timely screening and multidisciplinary management of the disease *** 2020,a consensus from 22 countries redefined the disease as metabolic(dysfunction)-associated fatty liver disease(MAFLD),which resulted in the redefinition of the corre-sponding *** the patients diagnosed with MAFLD and NAFLD mostly overlap,the MAFLD and NAFLD populations are not *** this review,we compared the associations of key extrahepatic diseases between NAFLD and MAFLD.

关键词： Metabolic diseases Fatty liver Liver fibrosis Diabetes mellitus,type 2 Cardiometabolic risk factors

Hepatitis C virus associated glomerulopathies

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World Journal of Gastroenterology 2014年第24期20卷 7544-7554页

作者： Abdullah Ozkok Alaattin yildiz Division of Nephrology Department of Internal MedicineFaculty of MedicineIstanbul Medeniyet UniversityIstanbul 34730Turkey Division of Nephrology Department of Internal MedicineIstanbul School of MedicineIstanbul UniversityIstanbul 34093Turkey

Hepatitis C virus (HCV) infection is a systemic disorder which is often associated with a number of extrahepatic manifestations including glomerulopathies. Patients with HCV infection were found to have a higher risk of end-stage renal disease. HCV positivity has also been linked to lower graft and patient survivals after kidney transplantation. Various histological types of renal diseases are reported in association with HCV infection including membranoproliferative glomerulonephritis (MPGN), membranous nephropathy, focal segmental glomerulosclerosis, fibrillary glomerulonephritis, immunotactoid glomerulopathy, IgA nephropathy, renal thrombotic microangiopathy, vasculitic renal involvement and interstitial nephritis. The most common type of HCV associated glomerulopathy is type I MPGN associated with type II mixed cryoglobulinemia. Clinically, typical renal manifestations in HCV-infected patients include proteinuria, microscopic hematuria, hypertension, acute nephritis and nephrotic syndrome. Three approaches may be suggested for the treatment of HCV-associated glomerulopathies and cryoglobulinemic renal disease: (1) antiviral therapy to prevent the further direct damage of HCV on kidneys and synthesis of immune-complexes; (2) B-cell depletion therapy to prevent formation of immune-complexes and cryoglobulins; and (3) nonspecific immunosuppressive therapy targeting inflammatory cells to prevent the synthesis of immune-complexes and to treat cryoglobulin associated vasculitis. In patients with moderate proteinuria and stable renal functions, anti-HCV therapy is advised to be started as pegylated interferon-α plus ribavirin. However in patients with nephrotic-range proteinuria and/or progressive kidney injury and other serious extra-renal manifestations, immunosuppressive therapy with cyclophosphamide, rituximab, steroid pulses and plasmapheresis should be administrated.

关键词： Hepatitis C virus infection Glomerulopathy Membranoproliferative glomerulonephritis Cryoglobulinemia Kidney transplantation Membranous nephropathy Diabetic nephropathy IgA nephropathy Focal segmental glomerulonephritis

Substitutional doping in 2D transition metal dichalcogenides

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Nano Research 2021年第6期14卷 1668-1681页

作者： Leyi Loh Zhepeng Zhang Michel Bosman Goki eda Department of Physics National University of Singapore2 Science Drive 3Singapore117551Singapore Department of Materials Science and Engineering National University of Singapore9 Engineering Drive 1Singapore117575Singapore Department of Chemistry National University of Singapore3 Science Drive 3Singapore117543Singapore Centre for Advanced 2D Materials National University of Singapore2 Science Drive 2Singapore117542Singapore

Two-dimensional(2D)van der Waals transition metal dichalcogenides(TMDs)are a new class of electronic materials offering tremendous opportunities for advanced technologies and fundamental *** to conventional semiconductors,substitutional doping is key to tailoring their electronic properties and enabling their device ***,we review recent progress in doping methods and understanding of doping effects in group 6 TMDs(MX2,M=Mo,W;X=S,Se,Te),which are the most widely studied model 2D semiconductor *** and theoretical studies have shown that a number of different elements can substitute either M or X atoms in these materials and act as n-or p-type *** review will survey the impact of substitutional doping on the electrical and optical properties of these materials,discuss open questions,and provide an outlook for further studies.

关键词： substitutional doping transition metal dichalcogenide two-dimensional semiconductor acceptor donor

The effects of elevated-CO_2 on physiological performance of Bryopsis plumosa

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Acta Oceanologica Sinica 2015年第4期34卷 125-129页

作者： yildiz Gamze DERE Sükran Biology Department Science and Arts Faculty Uludag University

An increase in the level of atmospheric carbon dioxide （CO2） and the resultant rise in CO2 in seawater alter the inorganic carbon concentrations of seawater. This change, known as ocean acidification, causes lower pH in seawater and may affect the physiology of seaweed species. Accordingly, the main goal of the current study was to determine the physiological responses of Bryopsis plumosa to elevated-CO2. The results indicated that photosynthesis of B. plumosa was insignificantly affected to elevated-CO2, but photosynthetic pigment contents and phenolics were significantly decreased. The results obtained from the research reveal that B. plumosa may become physiologically advanced when exposed to CO2-induced ocean acidification. In particular, B. plumosa may be more able to compete with calcifying algae when it will become future predicted CO2 scenario.

关键词： Bryopsis plumosa chlorophyll fluorescence ocean acidification photosynthesis

Immune plexins and semaphorins: old proteins, new immune functions

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Protein & Cell 2013年第1期4卷 17-26页

作者： Kelly Roney eda Holl Jenny Ting University of Chapel Hill Department of Microbiology and Immunology22-004 Lineberger Comprehensive Cancer CenterCB7295Chapel HillNC 27599USA Duke University Department of SurgeryDurhamNC 27710USA

Plexins and semaphorins are a large family of proteins that are involved in cell movement and *** importance of plexins and semaphorins has been emphasized by their discovery in many organ systems including the nervous(Nkyimbeng-Takwi and Chapoval,2011;McCormick and Leipzig,2012;Yaron and Sprinzak,2012),epithelial(Miao et al.,1999;Fujii et al.,2002),and immune systems(Takamatsu and Kumanogoh,2012)as well as diverse cell processes including angiogenesis(Serini et al.,2009;Sakurai et al.,2012),embryogenesis(Perala et al.,2012),and cancer(Potiron et al.,2009;Micucci et al.,2010).Plexins and semaphorins are transmembrane proteins that share a conserved extracellular semaphorin do-main(Hota and Buck,2012).The plexins and sema-phorins are divided into four and eight subfamilies respectively based on their structural *** are relatively small proteins containing the extracellular semaphorin domain and short intra-cellular *** contain the semaphorin domain and long intracellular tails(Hota and Buck,2012).The majority of plexin and semaphorin research has fo-cused on the nervous system,particularly the devel-oping nervous system,where these proteins are found to mediate many common neuronal cell processes including cell movement,cytoskeletal rearrangement,and signal transduction(Choi et al.,2008;Takamatsu et al.,2010).Their roles in the immune system are the focus of this review.

关键词： plexin semaphorin immune system den-dritic cell B cell T cell

Species and Plant Community Reorganization in the Trans-Mexican Volcanic Belt under Climate Change Conditions

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Journal of Mountain Science 2013年第6期10卷 923-931页

作者： VILLERS-RUIZ Lourdes CASTAeda-AGUADO Diana Center of Atmospheric Sciences National Autonomous University of Mexico (UNAM) School of Science Biology Department National Autonomous University of Mexico (UNAM)

This study analyzes six vegetation communities in relation to current climatic parameters and eight climate change scenarios along an elevation gradient extending from 2,710 m to 4,210 m in the Trans-Mexican Volcanic Belt. The projected movements of 25 plant species with the current restricted or wide altitudinal distributions were also modeled. To relate climatic parameters to the species and communities, a Precipitation/Temperature （P/T） index was used both for the current and the different climate-change scenarios. The temperatures are expected to increase by 1.1℃ to 1.7℃ by 2020 and by 2℃ to 3℃ by 2o5o. A decrease of 4% to 13% in the annual precipitation is expected for the 2020 horizon, and a reduction between 3% and 20% is expected for 2050. The reductions in water availability were projected for all altitude levels and plant communities. The most marked reduction was under the HADLEY- A2 scenario, in which the lower limit of the altitudinal range increased from 2,71o to 3,31o m （2050 horizon） with reductions in the P/T index between 36% and 39% compared to the current climate. Most plant species tended to shift their distribution from 20o to 300 m upward in the 2020 temporal horizon scenarios. The Pinus hartwegii, Alnus jorullensis and Pinus montezumae communities would have a shorter altitudinal range as they move upward and merge with the remaining species at the higher altitudinal range. For the 2o5o temporal horizon, 3o% of the species, primarily those from the higher altitudinal range, would disappear because their P/Tindex values would be above the limit of plant survival （〉4,210 m）.

关键词： Forest communities Climate change Upward movement Natural protected areas

Common telomerase reverse transcriptase promoter mutations in hepatocellular carcinomas from different geographical locations

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World Journal of Gastroenterology 2015年第1期21卷 311-317页

作者： Dilek Cevik Gokhan yildiz Mehmet Ozturk BilG en Genetics and Biotechnology Center Department of Molecular Biology and GeneticsBilkent UniversityAnkara 06800Turkey Centre de Recherche Inserm-Université Joseph Fourrier U823 La Tronche 38706France Advanced Biomedical Research Center Dokuz Eylul UniversityIzmir 35340Turke

AIM: To determine the mutation status of human telomerase reverse transcriptase gene(TERT) promoter region in hepatocellular carcinoma(HCC) from different geographical ***: We analyzed the genomic DNA sequences of 59 HCC samples comprising 15 cell lines and 44 primary tumors,collected from patients living in Asia,Europe and *** amplified a 474 bp DNA fragment of the promoter region of TERT gene including the 1295228 and 1295250 sequence of chromosome 5 by using *** were then sequenced by Sanger technique and the sequence data were analyzed with by using DNADynamo software in comparison with wild type TERT gene sequence as a ***: The TERT mutations were found highly frequent in *** of the fifteen tested cell lines displayed C228 T mutation,and one had C250 T mutation with a mutation frequency up to 60%.All of the mutations were heterozygous and mutually *** out of forty-four tumors displayed C228 T mutation,and additional five tumors had C250 T mutation providing evidence for mutation frequency of 34% in primary *** the geographic origins of HCC tumors tested,TERT promoter mutation frequencies were higher in African(53%),when compared to non-African(24%) tumors(P = 0.056).There was also a weak inverse correlation between TERT promoter mutations and murine double minute 2 single nucleotide polymorphism 309 TG polymorphism(P = 0.058).Mutation frequency was nearly two times higher in established HCC celllines(60%) compared to the primary tumors(34%).CONCLUSION: TERT promoter is one of most frequent mutational targets in liver cancer,and hepatocellular carcinogenesis is highly associated with the loss of telomere-dependent cellular senescence control.

关键词： Hepatocellular carcinoma Liver cancer Telomerase r

Advancing hepatocellular carcinoma treatment with hepatic arterial infusion chemotherapy

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World Journal of Gastrointestinal Oncology 2024年第12期16卷 4757-4761页

作者： eda Caliskan Yildirim Yakup Ergun Department of Medical Oncology Sincan Training and Research HospitalAnkara 06100Türkiye Department of Medical Oncology Bower HospitalDiyarbakır 21100Türkiye

Hepatocellular carcinoma(HCC)remains a major challenge in oncology,being a leading cause of cancer-related mortality ***-stage HCC is typically treated with surgical resection,transplantation,or ablation,while advanced-stage HCC relies on systemic therapies like sorafenib and newer combinations such as *** these advancements,there is still a need for effective treatments for unresectable HCC,especially in cases with macroscopic vascular *** arterial infusion chemotherapy(HAIC)has demonstrated promising outcomes in Asia for the treatment of unresectable HCC,yet its application in Western countries has been relatively *** letter reviews the recent meta-analysis by Zhou et al published in the World Journal of Gastrointestinal Oncology,which demonstrates the efficacy and safety of HAIC vs *** analysis includes 9 randomized controlled trials and 35 cohort studies,highlighting significant improvements in overall survival,progressionfree survival,and objective response rates with HAIC and its *** editorial explores the reasons behind the limited use of HAIC in Western *** underscores the potential of HAIC to enhance treatment outcomes for advanced HCC and calls for more research and broader adoption of HAIC in clinical practice globally.

关键词： Hepatocellular carcinoma Hepatic arterial infusion chemotherapy Tyrosine kinase inhibitors Immunotherapy Survival