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Conversion of CO_(2)to added value products via rWGS using Fe-promoted catalysts:Carbide,metallic Fe or a mixture?

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Journal of Energy Chemistry 2022年第3期31卷 635-646,I0017页

作者： Q iZhang laura Pastor-Pérez Qiang Wang Tomas Ramirez Reina Department of Chemical and Process Engineering University of SurreyGuildford GU27XHUnited Kingdom College of Environmental Science and Engineering Beijing Forestry UniversityBeijing 100083China

Fe-based catalysts are efficient systems for CO_(2)conversion via reverse water-gas shift(rWGS)***,the nature of the active phase,namely metallic iron,iron oxide or iron carbide remains a subject of debate which our paper is meant to ***0 is a much better catalyst for the rWGS than Fe_(3)*** activity of Fe0 can be promoted by the addition of Cs and Cu whose presence hinders iron carburisation while favouring both higher conversion and enhanced *** the samples are aged in the rWGS reaction mixture during stability test a new phase appear:Fe_(5)C_(2),resulting in a more active but less selective catalysts than Fe0 for the rWGS *** our results indicate that we could potentially achieve an optimal activity/selective balance upon finely tuning the proportion Fe/Fe_(5)C_(2).Beyond the fundamental information concerning active phase we have observed the presence of advanced Fischer-Tropsch-like products at ambient pressure opening new opportunities for the design of hybrid rWGS/Fischer-Tropsch systems.

关键词： CO_(2)conversion rWGS Fe carbide Fe catalysts Hybrid catalysts

Comparison of Apigenin,Quercetin and Kaempferol Accumulation and Total Flavonoid Content in Leaves,Embryogenic Cultures and Cell Suspension Cultures of Parsley(Petroselinum crispum)

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国际实验植物学杂志(英文) 2023年第10期92卷 2807-2823页

作者： laura Isabel Arias-Rodríguez martha Alicia Rodríguez-Mendiola Carlos Arias-Castro Federico Antonio Gutiérrez Miceli Diana Reséndez Pérez maría Celina Luján Hidalgo Juan JoséVillalobos Maldonado Norma Alejandra Mancilla margalli Analytical Laboratory National Technological Institute of MexicoTuxtla Gutierrez CampusTuxtla GutierrezMexico Plant Biotechnology Laboratory Instrumental Analysis LaboratoryPlant Biochemistry LaboratoryNational Technological Institute of MexicoTlajomulco de ZunigaMexico Department of Cellular Biology and Genetics Faculty of Biological SciencesAutonomous University of Nuevo LeonSan Nicolas delos GarzaMexico

In recent years,there has been a growing interest in exploring alternative treatments for bone *** tissue engineering has turned its attention to plant extracts containing osteogenic flavonoids as potential promoters of bone *** our study,we specifically investigated the extract of Petroselinum crispum,a plant known for its abundance of osteogenic flavonoids such as apigenin,quercetin,and *** objective was to compare the total flavonoid content(TFC)and their accumulation in different *** obtained hydrolyzed aqueous extracts from the leaves of parsley plants(grown for 12 weeks in the field),weekly embryogenic cultures,and suspension cell *** TFC,measured in mg quercetin equivalent per gram of dry weight(QE mg/g dw),was found to be 53.81±0.97 for 52 g dw of leaves(1 kg plant fw),31.10±1.52 for 420 g dw of embryogenic cultures,and 11.80±0.76 for 210 g dw of cell ***,only the leaves and embryogenic cultures showed significant accumulation of osteogenic flavonoids,with apigenin levels of 1.8±0.3 and 0.32±0.02 mg/g dw,and kaempferol levels of 1.0±0.18 and 0.2±0.01 mg/g dw,*** findings indicate that embryogenic cultures have the potential to produce up to 40%more apigenin in 12 weeks compared to 1 kg of parsley plant,thanks to their superior biomass reproductive *** results present a promising biotechnological approach for generating extracts enriched with bioactive compounds,which can be further utilized in in vitro osteogenic testing.

关键词： Parsley(Petroselinum crispum)cultures osteogenic flavonoids bone regeneration aqueous extracts

Building geometry data from online maps for accurate thermal simulations of districts

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建筑模拟(英文) 2023年第9期16卷 1659-1674页

作者： laura Romero Rodríguez JoséSánchez Ramos ServandoÁlvarez Domínguez Grupo Termotecnia.Departamento de Máquinas y Motores Térmicos University of CádizPuerto RealCádizSpain Grupo Termotecnia.Departamento de Ingenieria Energética University of SevilleSevilleSpain

Current approaches for simulating the energy performance of buildings on a large scale are limited by numerous assumptions and simplifications,which can lead to inaccurate *** new tools and procedures are emerging to improve accuracy,there remains a need for more user-friendly *** study proposes a new tool based on online maps to create the geometry of districts in a simple *** tool also enables an automatic evaluation of all buildings through dynamic hourly simulations,using a building simulation software and allowing to consider different weather *** illustrate the procedure,a district at risk of energy poverty in Seville(Spain)is modeled,where hourly temperature data for a whole year are available to demonstrate the need for building *** tool is used to evaluate the energy demands of the district under several retrofitting alternatives,and free-floating simulations are also performed to evaluate the improvement of thermal comfort without air-conditioning *** aim is not to discuss the actual values for this particular case,but rather to identify the correct direction for large-scale studies,so as to make them more easily ***,it may be concluded that the results provided by comprehensive tools,such as the one proposed in this study,enable easy yet accurate evaluations of buildings on a large scale with significant time savings,as well as the identification of locations where retrofitting interventions would have the greatest impact.

关键词： buildings districts energy demand efficiency GIS urban scale

New insights for the catalytic oxidation of cyclohexane to K-A oil

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Journal of Energy Chemistry 2022年第7期31卷 45-51,I0002页

作者： Alessandro Vomeri marta Stucchi Alberto Villa Claudio Evangelisti rea Beck laura Prati Dipartimento di Chimica Universitàdegli Studi di MilanoVia Golgi 1920133MilanoItaly CNR-ICCOM-Istituto di Chimica dei Composti Organo Metallici Via G.Moruzzi 1I-56124 PisaItaly Centre for Energy Research Surface Chemistry and Catalysis DepartmentP.O.Box 49H-1525 BudapestHungary

Au-based catalysts have been reported to be active in the cyclohexane oxidation to K-A oil, but they showed some limitiations in terms of productivity, selectivity and required reaction conditions. The possibility to overcome some of these limits has been explored coupling Au with Cu, which can be suitable for undergoing the electron-switch in the initial step of the cyclohexane oxidation. Hence, a bimetallic 2 wt% Au Cu/Al_(2)O_(3) catalyst was tested in the oxidation of cyclohexane, working at mild conditions of 120 ℃ and 4 bar of O_(2). The combination of the catalyst with a very small amount of benzaldehyde used as cheaper and non-toxic radical initiator allowed to obtain a very high productivity of cyclohexanol and cyclohexanone(45 mmol*m L/mgmet*h) with a selectivity of 94%. Moreover, comparing the catalysed reaction with the non-catalysed one, the role of the catalyst has been disclosed.

关键词： K-A oil Cyclohexane oxidation Benzaldehyde Radical initiator Heterogeneous catalysis Radical mechanism AuCu bimetallic catalyst

Lilly Reich:The architecture and critique of an invisibilized woman

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Frontiers of Architectural Research 2023年第1期12卷 15-27页

作者： laura Lizondo-Sevilla Debora Domingo-Calabuig Department of Architectural Projects Universitat Politecnica de ValenciaValencia 46022Spain

The architectural modernity that prevailed in Germany during the first half of the twentieth century cannot be understood without an appreciation of the work of Lilly Reich,a brilliant designer of interiors,furniture,and ephemeral architecture who exerted significant influence from her active position as a member of the Deutscher *** the critical recognition she acquired in the media of the time during her solo career,her association with the architect Mies van der Rohe,far from positioning her in the field of contributions,relegated her to the role of a mere *** this reason,this article aims to shed light on the extensive legacy of Lilly Reich,a woman whose figure is being acknowledged as a result of recent research but who was nevertheless omitted from the leading books on the history of *** methodology employed in the research analyses comparatively“what she did”and“what was said about her”,highlighting the convergences and divergences between“work”and“criticism”.The study and its results yield interesting conclusions regarding both the recognition that Lilly Reich received during her lifetime and the criticism she received after her death and up to the present day.

关键词： Lilly Reich Architecture Design Critique Invisibilization Woman

Maize response to nitrogen and phosphorus starter fertilisation in mineral-fertilised or manured systems

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The Crop Journal 2023年第3期11卷 922-932页

作者： Michela Battisti Barbara Moretti Massimo Blandino Carlo Grignani laura Zavattaro Department of Agricultural Forest and Food SciencesUniversity of TurinLargo Braccini 2Grugliasco 10095TOItaly Department of Veterinary Sciences University of TurinLargo Braccini 2Grugliasco 10095TOItaly

Phosphorus(P)is an essential nutrient for maize production,but in temperate areas the P uptake during early growing stages can be limited due to low soil temperature,even though the soil was tested high in *** objective of this study was to assess the effects of nitrogen and phosphorous(NP)starter fertilisation during early growth stages and its carryover until maize harvest,in mineral-fertilised or manured systems.A field experiment was carried out in north-west Italy during the 2019 and 2020 growing *** trial compared sub-surface placement of NP(diammonium phosphate)or N alone(ammonium nitrate)in bands close to the maize seed furrows,in differing long-term(LT)fertilisation managements:two doses of urea(Min-L and Min-H),two doses of bovine slurry(Slu-L and Slu-H)or two doses of farmyard manure(Fym-L and Fym-H).The two rates,low(L)and high(H),corresponded to 170 and250 kg N ha^(-1)year^(-1) *** to N fertilisation,NP starter fertilisation improved early maize growth assessed by leaf area index(LAI)and shoot dry weight(SDW)in all *** effects differed between the two years(2019:LAI+63%,SDW+67%;2020:LAI+36%,SDW+38%),as 2019was cool during the first *** LAI and SDW values were confirmed at crop flowering in the mineral-fertilised systems *** shoot growth was enhanced by NP starter fertilisation,anthesis occurred 1 day earlier in all ***,a response to NP starter fertilisation at harvest was recorded in mineral-fertilised systems only(+1.3 and+3.2 t ha^(-1) in Min-L and Min-H,respectively).The uptake of P,used as a true indicator of soil nutrient availability,increased with increasing soil Olsen P until 39 mg kg^(-1).These results suggest that soil test thresholds should be revised for points above which P fertilisation should be suspended.

关键词： Long-term fertilisation Farmyard manure Bovine slurry Urea Diammonium phosphate

An overview of Fintech applications to solve the puzzle of health care funding:state-of-the-art in medical crowdfunding

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Financial Innovation 2022年第1期8卷 2262-2288页

作者： laura Grassi Simone Fantaccini School of Management Politecnico di MilanoMilanItaly

Crowdfunding is emerging as an alternative form of funding for medical purposes,with capital being raised directly from a broader and more diverse audience of *** this paper,we have systematically researched and reviewed the literature on medical crowdfunding to determine how crowdfunding connects with the health care *** health care industry has been struggling to develop sustainable research and business models for economic systems and investors alike,especially in *** research results have revealed a wealth of evidence concerning the way crowdfunding is applied in real *** and caregivers utilize web platform–based campaigns all over the world to fund their medical expenses,generally on a spot basis,using donation-based or even reward-based schemes,regardless of the health care system archetype(public,private insurance-based or hybrid).Academics have also focused on funding campaigns and the predictors of success(which range from social behaviour and environment to the basic demographics of the campaigners and their diseases)and on social and regulatory concerns,including heightened social inequality and *** equity crowdfunding is disrupting the way many ventures/businesses seek capital in the market,our research indicates that there are no relevant or consistent data on the practice of medical equity crowdfunding in health care,apart from a few anecdotal cases.

关键词： Crowdfunding Health crowdfunding Pharma Healthtech R&D funding Fintech Medtech

Machine learning algorithm using publicly available echo database for simplified“visual estimation”of left ventricular ejection fraction

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World Journal of Experimental Medicine 2022年第2期12卷 16-25页

作者： Michael Blaivas laura Blaivas Department of Medicine University of South Carolina School of MedicineRoswellGA 30076United States Department of Environmental Science Michigan State UniversityRoswellGeorgia 30076United States

BACKGROUND Left ventricular ejection fraction calculation automation typically requires complex algorithms and is dependent of optimal visualization and tracing of endocardial *** significantly limits usability in bedside clinical applications,where ultrasound automation is needed *** To create a simple deep learning(DL)regression-type algorithm to visually estimate left ventricular(LV)ejection fraction(EF)from a public database of actual patient echo examinations and compare results to echocardiography laboratory EF *** A simple DL architecture previously proven to perform well on ultrasound image analysis,VGG16,was utilized as a base architecture running within a long short term memory algorithm for sequential image(video)*** obtaining permission to use the Stanford EchoNet-Dynamic database,researchers randomly removed approximately 15%of the approximately 10036 echo apical 4-chamber videos for later performance *** database echo examinations were read as part of comprehensive echocardiography study performance and were coupled with EF,end systolic and diastolic volumes,key frames and coordinates for LV endocardial tracing in csv *** better reflect point-of-care ultrasound(POCUS)clinical settings and time pressure,the algorithm was trained on echo video correlated with calculated ejection fraction without incorporating additional volume,measurement and coordinate *** percent of the original data was used for algorithm training and 15%for validation during *** previously randomly separated 15%(1263 echo videos)was used for algorithm performance testing after training *** the inherent variability of echo EF measurement and field standards for evaluating algorithm accuracy,mean absolute error(MAE)and root mean square error(RMSE)calculations were made on algorithm EF results compared to Echo Lab calculated ***-Atlman calculation was also *** for skilled echocardiographe

关键词： Deep learning Artificial intelligence Point-of-care-ultrasound Ejection fraction Cardiac Echocardiography

3′-UTR of the SARS-CoV-2 genome as a possible source of piRNAs

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Genes & Diseases 2023年第3期10卷 668-670页

作者： maría Teresa Hernández-Huerta laura Pérez-Campos Mayoral Carlos Alberto Matias-Cervantes Carlos Romero Díaz Eli Cruz Parada Eduardo Pérez-Campos Mayoral Rafael Baltiérrez-Hoyos margarito martínez Cruz Gabriel Mayoral Andrade Eduardo Pérez-Campos CONACyT Faculty of Medicine and SurgeryAutonomous University“Benito Juárez”of Oaxaca(UABJO)Oaxaca 68020Mexico Research Center Faculty of Medicine UNAM-UABJOAutonomous University“Benito Juárez”of Oaxaca(UABJO)Oaxaca 8020Mexico National Technology of Mexico/IT Oaxaca Oaxaca de JuárezOaxaca 68030Mexico

SARS-CoV-2 is the causal agent of the COVID-19 pandemic. This is a single-stranded RNA beta-coronavirus that is comprised of a 5′ and 3′-untranslated region (UTR) in its non-coding RNA (ncRNA) region. The P-element-induced wimpy testis (PIWI)-interacting RNAs (piRNAs) are ncRNA sequences that bind to transposons and interfere with the translation of new genes. Here, we search for short sequences in the non-coding regions, corresponding to 28 nucleotides (nt). These start from a uracil and have a conserved region of at least 10 nt of homology with the previously reported piRNAs. The aim of this work was to identify piRNA-like sequences in the 3′-UTR of SARS-CoV-2 from the reported Wuhan Patient's genome sequence (GenBank: MN908947.3).

关键词： piRNA sequences piRNAs