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An integrated approach to the key parameters in methanol‐to‐olefins reaction catalyzed by MFI/MEL zeolite materials

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Chinese Journal of Catalysis 2022年第7期43卷 1879-1893页

作者： Chuncheng Liu Evgeny A.Uslamin sophie h.van vreeswijk Irina Yarulina Swapna Ganapathy Bert M.Weckhuysen Freek Kapteijn Evgeny A.Pidko Inorganic Systems Engineering Department of Chemical EngineeringDelft University of TechnologyVan der Maasweg 92629 HZ Delftthe Netherlands BASF SE Process Research and Chemical EngineeringLudwigshafen 67056Germany Inorganic Chemistry and Catalysis Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993854 CG Utrechtthe Netherlands Catalysis Engineering Department of Chemical EngineeringDelft University of TechnologyVan der Maasweg 92629 HZ Delftthe Netherlands

Identification of the catalyst characteristics correlating with the key performance parameters including selectivity and stability is key to the rational catalyst design. herein we focused on the identification of property-performance relationships in the methanol-to-olefin(MTO) process by studying in detail the catalytic behaviour of MFI, MEL and their respective intergrowth zeolites. The detailed material characterization reveals that both the high production of propylene and butylenes and the large Me Oh conversion capacity correlate with the enrichment of lattice Al sites in the channels of the pentasil structure as identified by 27 Al MAS NMR and 3-methylpentane cracking results. The lack of correlation between MTO performance and other catalyst characteristics, such as crystal size, presence of external Brønsted acid sites and Al pairing suggests their less pronounced role in defining the propylene selectivity. Our analysis reveals that catalyst deactivation is rather complex and is strongly affected by the enrichment of lattice Al in the intersections, the overall Al-content, and crystal size. The intergrowth of MFI and MEL phases accelerates the catalyst deactivation rate.

关键词： Structure‐performance relationship Zeolite catalysis Methanol‐to‐olefin conversion Al‐distribution Acidity Intergrowth MFI/MEL Pentasil

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Fluorescence polarization modulation super-resolution imaging provides refined dynamics orientation processes in biological samples sophie Brasselet

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Light(Science & Applications) 2022年第11期11卷 2564-2566页

作者： sophie Brasselet Aix Marseille Univ CNRSCentrale MarseilleInstitut FresnelF-13013 MarseilleFrance

Combining polarization modulation Fourier analysis and spatial information in a joint reconstruction algorithm for polarization-resolved fluorescence imaging provides not only a gain in spatial resolution but also a s... 详细信息

关键词： polarization resolution Fluorescence

Earwig mothers consume the feces of their juveniles during family life

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Insect Science 2022年第2期29卷 595-602页

作者： sophie van Meyel Séverine Devers Joël Meunier Institut de Recherche sur la Biologie de l'Insecte UMR 7261CNRSUniversity of ToursToursFrance

Many animals consume the feces of their *** allo-coprophagy can have benefits,such as access to nutrients and symbionts,but also risks for consumers,mainly due to direct contact with pathogens that develop on *** the European earwig Forficula auricularia,mothers and juveniles live in nests lined with their *** surprising habit allows juveniles to consume the feces of their siblings during family life and provides them with nutritional benefits when mothers provide low ***,it was unclear whether earwig mothers also practice allo-coprophagy,and whether this behavior is motivated by their nutritional ***,we set up four types of experimental families in which we manipulated the nutritional needs of mothers and/or juveniles and measured the effects on the production of feces by the juveniles,and the consumption of these feces by the *** results first show that fed juveniles produced more feces pellet in presence of fed compared to food-deprived *** also found that,overall,about 50%of the mothers consumed juveniles *** consumption was both more likely and larger when the feces were produced by fed compared to food-deprived juveniles,while the proportion of feces pellets eaten was larger in food-deprived compared to fed ***,our results reveal that allo-coprophagy involves every family member and suggest that it can have both nutritional and non-nutritional benefits for earwig ***-coprophagy could thus favor the maintenance of mothers in the nest and,more generally,promote the early evolution of family life.

关键词： cooperation coprophagy dermaptera family life parental care

Production performance and plasma metabolite concentrations of broiler chickens fed low crude protein diets differing in Thr and Gly

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Animal Nutrition 2021年第2期7卷 472-480页

作者： Laura Star sophie Tesseraud Marije van Tol Ilaria Minussi Etienne Corrent William Lambert Schothorst Feed Research Meerkoetenweg 268218 NA Lelystadthe Netherlands INRAE BOAUniversitéde Tours37380 NouzillyFrance Orffa Additives B.V. Vierlinghstraat 514251 LC Werkendamthe Netherlands Ajinomoto Animal Nutrition Europe 32 rue Guersant75017 ParisFrance

The aim of the study was to test the interaction between Thr and Gly in low crude protein(CP)diets in 7 to 28 d broilers on production performance and plasma metabolites.A total of 2,040 broilers were allocated to 17 treatments.A positive control(PC)diet(20.5%CP)was formulated to be adequate in dietary Thr and Gly.A negative control(NC)diet(18.5%CP,deficient in Thr and Gly)was supplemented with crystalline L-Thr and Gly to obtain a 4 Thr×4 Gly *** Thr was tested at an apparent faecal digestibility(AFD)Thr-to-Lys ratio,which was 55%,58%,61%or 64%,and dietary Gly was tested at an AFD(Gly+Ser)-to-Lys ratio,which was 135%,142%,149%or 156%.Plasma samples were collected at 28 *** low CP diet,formulated at 64%Thr and 156%Gly,resulted in a higher body weight gain(BWG)(Phe high CP treatment(PC).FCR was improved(Phr *** response to dietary Thr was significant for feed intake(FI),BWG and FCR(Phr×Gly was observed for FI and BWG(Plinear=0.091 and P=0.074,respectively).Gly did not affect production *** interaction between Thr×Gly on plasma free AA level was observed(Ph increase in AFD Thr-to-Lys ratio,and increased with increase in AFD(Gly+Ser)-to-Lys *** uric acid concentration was higher in PC than in all of the other diets,and plasma triglyceride concentration was decreased by L-Thr supplementation,but not by *** conclusion,Gly was not limiting for growth at low dietary CP level unless Thr was deficient,showing that adequate amounts of Thr in broiler diets can overcome marginal supply of Gly and Ser and allow reduction of dietary CP from 20.5%to 18.5%for broilers from 7 to 28 d of age.

关键词： Broiler Threonine Glycine Low protein Performance Plasma metabolite

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New insights into the cell-and tissue-specificity of glucocorticoid actions

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Cellular & Molecular Immunology 2021年第2期18卷 269-278页

作者： Linda Quatrini sophie Ugolini Department of Immunology IRCCS Bambino GesùChildren’s HospitalRomeItaly Aix Marseille Univ CNRSINSERMCentre d’Immunologie de Marseille-LuminyMarseilleFrance

Glucocorticoids(GCs)are endogenous hormones that are crucial for the homeostasis of the organism and adaptation to the external *** of their anti-inflammatory effects,synthetic GCs are also extensively used in clinical ***,almost all cells in the body are sensitive to GC *** a result,these mediators have pleiotropic effects,which may be undesirable or detrimental to human ***,we summarize the recent findings that contribute to deciphering the molecular mechanisms downstream of glucocorticoid receptor *** also discuss the complex role of GCs in infectious diseases such as sepsis and COVID-19,in which the balance between pathogen elimination and protection against excessive inflammation and immunopathology needs to be tightly *** understanding of the cell type-and context-specific actions of GCs from the molecular to the organismal level would help to optimize their therapeutic use.

关键词： Glucocorticoids inflammation immune response

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Actads

Science China Mathematics 2022年第9期65卷 1909-1952页

作者： sophie Kriz Department of Mathematics College of LiteratureScienceand the ArtsUniversity of MichiganAnn ArborMI 48109USA

In this paper,I introduce a new generalization of the concept of an operad,further generalizing the concept of an opetope introduced by Baez and Dolan(1998),who used this for the definition of their version of non-strict *** arise from iterating a certain construction on operads called the+-construction,starting with *** first step gives rise to plain operads,i.e.,operads without *** permutation axiom in a symmetric operad,however,is an additional structure resulting from permutations of variables,independent of the structure of a *** though we can apply the+-construction to symmetric operads,there is the possibility of introducing a completely different kind of permutations on the higher levels by again permuting variables without regard to the structures on the previous *** and investigating these structures is the main purpose of this *** structures obtained in this way are what I call *** n-actads with n>1,the permutations on the different levels give rise to a certain special kind of n-fold category.I also explore the concept of iterated algebras over an n-actad(generalizing an algebra and a module over an operad),and various types of iterated units.I give some examples of algebras over 2-actads,and show how they can be used to construct certain new interesting homotopy types of operads.I also discuss a connection between actads and ordinal notation.

关键词： operads actads infinite loop spaces universal algebra ordinals

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Dietary enrichment of edible insects with omega 3 fatty acids

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Insect Science 2020年第3期27卷 500-509页

作者： Dennis G.A.B.Oonincx sophie Laurent Margot E.Veenenbos Joop J.A.van Loon Department of Animal Sciences Animal Nutrition GroupWageningen UniversityWageningenthe Netherlands Laboratory of Entomology Department of Plant SciencesWageningen UniversityWageningenthe Netherlands sophie Laurent ON IRISFood Process EngineeringUMR CNRS 6144 GEPEANantes Cedex 3France

Edible insects are advocated as sustainable and healthy food and ***,commercially produced insects are often low in n‐3 fatty acids and have suboptimal n‐6/n‐3 ratios.A certain amount and proportion of these FAs is required to optimize human *** oil consists primarily(57%)out of alpha‐linolenic *** experiment was conducted to quantify the effect of flaxseed oil provision on fatty acid composition and to determine the quantity needed to attain a beneficial n‐6/n‐3 *** species were used in the experiment:house crickets(Acheta domesticus[L.]),lesser mealworms(Alphitobius diaperinus[Pfanzer])and black soldier flies(hermetia illucens[L.]).These were provided with either a control diet or a diet enriched with 1%,2%,or 4%flaxseed oil during their larval/nymphal *** acid profiles of diets and insects were determined via GC‐*** three species had distinct fatty acid profiles on all four diets,but responded similarly to flaxseed oil *** each percent added to the diet,the alpha‐linolenic acid content of the insects increased by 2.3%–2.7%.Four percent addition increased the n‐3 fatty acid content 10–20 fold in the three species and thereby strongly decreased n‐6/n‐3 ratios from 18–36 to 0.8–2.4.A ratio below 5 is considered optimal for human health and was achieved by 2%flaxseed oil inclusion for house crickets and lesser mealworms,and at 1%inclusion for black soldier *** a source of n‐3 fatty acids to insect diets can thus improve the nutritional quality of insects.

关键词： Acheta domesticus Alphitobius diaperinus diet fatty acids hermetia illucens

hOW TO PROVE ThE DISCRETE RELIABILITY FOR NONCONFORMING FINITE ELEMENT METhODS

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Journal of Computational Mathematics 2020年第1期38卷 142-175页

作者： Carsten Carstensen sophie Puttkammer Department of Mathematics Humboldt-Universitat zu BerlinUnter den Linden 610099 BerlinGermany

Optimal convergence rates of adaptive finite element methods are well understood in terms of the axioms of *** key ingredient is the discrete reliability of a residualbased a posteriori error estimator,which controls the error of two discrete finite element solutions based on two nested *** the error analysis of nonconforming finite element methods,like the Crouzeix-Raviart or Morley finite element schemes,the difference of the piecewise derivatives of discontinuous approximations to the distributional gradients of global Sobolev functions plays a dominant role and is the object of this *** nonconforming interpolation operator,which comes natural with the definition of the aforementioned nonconforming finite element in the sense of Ciarlet,allows for stability and approximation properties that enable direct proofs of the reliability for the residual that monitors the equilibrium *** novel approach of this paper is the suggestion of a right-inverse of this interpolation operator in conforming piecewise polynomials to design a nonconforming approximation of a given coarse-grid approximation on a refined *** results of this paper allow for simple proofs of the discrete reliability in any space dimension and multiply connected domains on general shape-regular triangulations beyond newest-vertex bisection of *** attention is on optimal constants in some standard discrete estimates listed in the appendices.

关键词： Discrete reliability Nonconforming finite element method Conforming companion Morley Crouzeix-Raviart Explicit constants Axioms of adaptivity

Prophylactic fixation of the unaffected contralateral side in children with slipped capital femoral epiphysis seems favorable:A systematic review

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World Journal of Orthopedics 2022年第5期13卷 515-527页

作者： Steven J C Vink Renée A van Stralen sophie Moerman Christiaan J A van Bergen Department of Orthopedic Surgery Erasmus Medical CenterRotterdam 3015GDNetherlands Department of Orthopedic Surgery University Medical Center GroningenGroningen 9713GZNetherlands Department of Orthopedic Surgery Amphia HospitalBreda 4818CKNetherlands

BACKGROUND Slipped capital femoral epiphysis(SCFE)occurs in adolescents and has an incidence of around 10 per 100000 *** presenting with a unilateral SCFE are 2335 times more likely to develop a contralateral SCFE than the general *** factors that have been suggested to increase the risk of contralateral slip include a younger patient,an underlying endocrine disorder,growth hormone use and a higher radiographic posterior sloping ***,there is still much debate on the advantages and disadvantages of prophylactic fixation of the unaffected side in an otherwise healthy *** To investigate the risk rate of contralateral SCFE and assess the(dis)advantages of prophylactic fixation of the contralateral *** A systematic literature search was performed in the Embase,Medline,Web of Science Core Collection and Cochrane *** terms included‘slipped capital femoral epiphysis,’‘fixation,’‘contralateral,’and *** eligibility of the acquired articles was independently assessed by the authors and additional relevant articles were included through *** were considered eligible for inclusion if they presented data about otherwise healthy children with primarily unilateral SCFE and the outcomes of prophylactically pinning their unaffected side,or about the rates of contralateral slips and complications *** study quality of the included articles was assessed independently by the authors by means of the methodological index for non-randomized studies *** Of 293 identified unique publications,we included 26 studies with a total of 12897 patients.1762 patients(14%)developed a subsequent symptomatic contralateral *** addition,38%of patients developed a subsequent slip on the contralateral side without experiencing clinical *** most outspoken advantage of prophylactic fixation of the contralateral hip in the literature is prevention of an(asymptomatic)slip

关键词： Slipped capital femoral epiphysis Primary prevention Postoperative complications Risk factors Radiography