检索结果-南通市图书馆

维普期刊数据库

Stochastic seismic inversion and Bayesian facies classification applied to porosity modeling and igneous rock identification

在线全文

学校读者我要写书评

暂无评论

Petroleum Science 2024年第2期21卷 918-935页

作者： Fábio j.nior Damasceno Fernandes Leonardo Teixeira antonio Fernando Menezes Freire Wagner Moreira Lupinacci Exploratory Interpretation and Reservoir Characterization Group(GIECAR) Department of Geology and GeophysicsFederal Fluminense UniversityNiter oiRJ24210-346Brazil Petrobras Rio de JaneiroRJ20231-030Brazil National Institute of Science and Technology of Petroleum Geophysics(INCT-GP/CNPQ) Niter oiRJ24210-346Brazil

We apply stochastic seismic inversion and Bayesian facies classification for porosity modeling and igneous rock identification in the presalt interval of the Santos Basin. This integration of seismic and well-derived information enhances reservoir characterization. Stochastic inversion and Bayesian classification are powerful tools because they permit addressing the uncertainties in the model. We used the ES-MDA algorithm to achieve the realizations equivalent to the percentiles P10, P50, and P90 of acoustic impedance, a novel method for acoustic inversion in presalt. The facies were divided into five: reservoir 1,reservoir 2, tight carbonates, clayey rocks, and igneous rocks. To deal with the overlaps in acoustic impedance values of facies, we included geological information using a priori probability, indicating that structural highs are reservoir-dominated. To illustrate our approach, we conducted porosity modeling using facies-related rock-physics models for rock-physics inversion in an area with a well drilled in a coquina bank and evaluated the thickness and extension of an igneous intrusion near the carbonate-salt interface. The modeled porosity and the classified seismic facies are in good agreement with the ones observed in the wells. Notably, the coquinas bank presents an improvement in the porosity towards the top. The a priori probability model was crucial for limiting the clayey rocks to the structural lows. In Well B, the hit rate of the igneous rock in the three scenarios is higher than 60%, showing an excellent thickness-prediction capability.

关键词： Stochastic inversion Bayesian classification Porosity modeling Carbonate reservoirs Igneous rocks

维普期刊数据库

Robust hybrid bismuth perovskites as potential photocatalysts for overall water splitting

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第5期17卷 4593-4601页

作者： antonio j.Chacón-García Herme G.Baldovi Artem A.Babaryk antonio Rodríguez-Diéguez Sergio Navalón Yolanda Pérez Hermenegildo García Patricia Horcaj.da Advanced Porous Materials Unit IMDEA Energy InstituteAvda.Ramón y Cajal 328935 MóstolesMadridSpain Departamento de Química Universitat Politècnica de València46022 ValènciaSpain Departamento Química Inorgánica Universidad de Granada1807GranadaSpain Departamento de Biología y Geología Física y Química Inorgánica.ESCET.Universidad Rey Juan Carlos28933 MóstolesMadridSpain Instituto de tecnología química CSIC-UPV Universitat Politècnica de València(UPV)46022Spain

Organic-inorganic hybrid perovskites have gained great attention as promising photocatalysts for hydrogen ***,due to their poor stability in water,the use of aqueous hydrohalic acid solutions is specifically required for an efficient hydrogen ***,three novel photoactive lead-free hybrid perovskites based on bismuth and triazolium cations(denoted as IEF-15,IEF-16,and IEF-17(IEF stands for IMDEA energy frameworks))were synthesized and fully characterized(structural,compositional,optical,etc.).Further,these solids were proposed as photocatalysts for the challenging gas phase overall water splitting(OWS)***,IEF-16 thin films exhibited a remarkable photocatalytic activity in both H_(2) and O_(2) evolution,as a consequence of its appropriate bandgap and energy-band alignment,achieving hydrogen evolution rates ofμmol·g_(H_(2))^(-)1846 and 360 after 24 h under ultraviolet-visible(UV-vis)irradiation or simulated solar irradiation,*** study additionally highlights the remarkable structural and photochemical stability of IEF-16 under different operational conditions(*** volume,irradiation and temperature),paving the way for green hydrogen production from OWS using perovskite-based photocatalysts.

关键词： bismuth-based hybrid perovskites thin films photocatalysis overall water splitting green hydrogen

Effects of a school-based karate intervention on academic achievement,psychosocial functioning,and physical fitness:A multi-country cluster randomized controlled trial

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

j.urnal of Sport and Health Science 2024年第1期13卷 90-98页

作者： Tania Pinto-Escalona Erica Gobbi Pedro L.Valenzuela Simon j.Bennett Pierluigi Aschieri Manuel Martin-Loeches antonio Paoli Oscar Martinez-de-Quel Faculty of Education Complutense University of MadridMadrid 28040Spain Department of Biomolecular Sciences University of Urbino“Carlo Bo”Urbino 61029Italy Department of Systems Biology University of AlcaláMadrid 28805Spain Research Institute for Sport and Exercise Sciences Faculty of ScienceLiverpool John Moores UniversityLiverpoolL33AFUK Italian j.do WrestlingKarate and Martial Arts FederationRome 00122Italy Psychobiology&Methods for the Behavioural Sciences Department Complutense University of MadridMadrid 28040Spain Department of Biomedical Sciences University of PaduaPadua 35122Italy

Purpose:To examine the effects of a school-based karate intervention on academic achievement,psychosocial functioning,and physical fitness in children aged 7-8 ***:Twenty schools in 5 different European countries(2 second-grade classrooms per school)participated in a cluster randomized controlled trial(Sport at School trial).Participants were assigned to either a control group,which continued with their habitual physical education lessons,or to an intervention group,which replaced these lessons with a 1-year karate intervention(Karate Mind and Movement program).A total of 721 children(344 girls and 377 boys,7.4±0.5 years old,mean±SD)completed the study,of which 333 and 388 were assigned to the control group and intervention group,*** included academic performance(average grade),psychosocial functioning(Strengths and Difficulties Questionnaire for parents),and different markers of physical fitness(cardiorespiratory fitness,balance,and flexibility).Results:The intervention provided small but significant benefits compared to the control group for academic achievement(d=0.16;p=0.003),conduct problems(d=-0.28;p=0.003),cardiorespiratory fitness(d=0.36;p0.05).Conclusion:A 1-year school-based karate intervention was effective in improving academic achievement,conduct problems,and physical fitness in primary school *** results support the inclusion of karate during physical education lessons.

关键词： Academic performance Cardiorespiratory fitness Conduct problems Karate Physical fitness

维普期刊数据库

Multipartite oil-flower/oil-bee mutualisms involving male-bee-pollinated orchids in tropical Asia

在线全文

学校读者我要写书评

暂无评论

National Science Review 2024年第5期11卷 105-107页

作者： Meng Zhang Li-Bing j.a Susanne S.Renner Zhi-Xi Tian Xiao-An Wang j.ang-Yun Gao Yi-Bo Luo antonio j.C.Aguiar Huan-Li Xu Shuang-Quan Huang Institute of Evolution and Ecology School of Life Sciences Central China Normal University Department of Biology Washington University State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan Yunnan University State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Department of Zoology University of Brasília Department of Entomology College of Plant Protection China Agricultural University

Most animal-pollinated flowers offer nectar or pollen as a reward to their pollinators. A small fraction, however, have switched to other rewards, such as fatty oils offered in glandular hairs or j.st below the epidermis. This type of reward has evolved in some 150 genera in at least 11 families, including South American and African Orchidaceae [1,2]. Oiloffering flowers are exploited by a few hundred species of oil-collecting bees in temperate and tropical biomes on all continents except Antarctica [1,2]. Oil bees depend obligatorily on floral oil for cell lining and as larval food [3,4], which is why oil collecting usually is confined to female bees.

关键词： CTENOPLECTRINI HYMENOPTERA DENDROBIUM APIDAE

Preparation of Environmentally Friendly Urea-Hexanediamine-Glyoxal(HUG)Resin Wood Adhesive

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

j.urnal of Renewable Materials 2024年第2期12卷 235-244页

作者： Qianyu Zhang Shi Chen Long Cao Hong Lei antonio Pizzi Xuedong Xi Guanben Du Yunnan Key Laboratory of Wood Adhesives and Glue Products College of Material Science and EngineeringSouthwest Forestry UniversityKunming650224China International j.int Research Center for Biomass Materials Southwest Forestry UniversityKunming650224China College of Chemical and Materials Engineering Zhejiang A&F UniversityHangzhou311300China LERMAB University of LorraineEpinal88000France

Using non-toxic,low-volatile glyoxal to completely replace formaldehyde for preparing urea-glyoxal(UG)resin adhesive is a hot research topic that could be of great interest for the wood ***,urea-glyoxal(UG)resins prepared by j.st using glyoxal instead of formaldehyde usually yields a lower degree of *** results in a poorer bonding performance and water resistance of UG resins.A good solution is to pre-react urea to preform polyurea molecules presenting already a certain degree of polymerization,and then to condense these with glyoxal to obtain a novel UG ***,in this present work,the urea was reacted with hexamethylene diamine to form a polyurea named HU,and then this was used to react it with different amounts of glyoxal to synthesize hexamethylenediamine-urea-glyoxal(HUG)polycondensation resins,and to use this for bonding *** results show that the glyoxal can well react with HU polyuria via addition and schiff base reaction,and also the HUG resin exhibits excellent bonding strength and water *** shear strength of the plywood bonded with this HUG at 160°C hot press temperature as high as 1.93 MPa,2.16 MPa and 1.61 MPa,respectively,which meets the requirement of the China national standard GB/T 9846-2015(≥0.7 MPa),and can be a good choice as a wood adhesive for industrial application.

关键词： Urea-glyoxal resin hexamethylene diamine wood adhesives water resistance

Plant cell wall-mediated disease resistance:Current understanding and future perspectives

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2024年第5期17卷 699-724页

作者： antonio Molina Lucıa j.rda Miguel Angel Torres Marina Martın-Dacal Diego j.se Berlanga Patricia Fernandez-Calvo Elena Gomez-Rubio Sonsoles Martın-Santamarıa Centro de Biotecnología y Genómica de Plantas Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA/CSIC)Campus de Montegancedo UPMPozuelo de Alarcon(Madrid)Spain Departamento de Biotecnologıa-Biología Vegetal Escuela Técnica Superior de Ingenierıa AgronomicaAlimentarıa y de BiosistemasUPMMadridSpain Centro de Investigaciones Biologicas Margarita Salas Consejo Superior de Investigaciones Científicas(CSIC)Ramiro de Maeztu 928040 MadridSpain Misión Biológica de Galicia Consejo Superior de Investigaciones Científicas(CSIC)Campus de Montegancedo UPMPozuelo de Alarcón(Madrid)Spain

Beyond their function as structural barriers,plant cell walls are essential elements for the adaptation of plants to environmental *** walls are dynamic structures whose composition and integrity can be altered in response to environmental challenges and developmental *** wall changes are perceived by plant sensors/receptors to trigger adaptative responses during development and upon stress *** cell wall damage caused by pathogen infection,wounding,or other stresses leads to the release of wall molecules,such as carbohydrates(glycans),that function as damage-associated molecular patterns(DAMPs).DAMPs are perceived by the extracellular ectodomains(ECDs)of pattern recognition receptors(PRRs)to activate pattern-triggered immunity(PTI)and disease ***,glycans released from the walls and extracellular layers of microorganisms interacting with plants are recognized as microbe-associated molecular patterns(MAMPs)by specific ECD-PRRs triggering PTI *** number of oligosaccharides DAMPs/MAMPs identified that are perceived by plants has increased in recent ***,the structural mechanisms underlying glycan recognition by plant PRRs remain ***,this knowledge is mainly focused on receptors of the LysM-PRR family,which are involved in the perception of various molecules,such as chitooligosaccharides from fungi and lipo-chitooligosaccharides(i.e.,Nod/MYC factors from bacteria and mycorrhiza,respectively)that trigger differential physiological ***,additional families of plant PRRs have recently been implicated in oligosaccharide/polysaccharide *** include receptor kinases(RKs)with leucine-rich repeat and Malectin domains in their ECDs(LRR-MAL RKs),Catharanthus roseus RECEPTOR-LIKE KINASE 1-LIKE group(CrRLK1L)with Malectin-like domains in their ECDs,as well as wall-associated kinases,lectin-RKs,and *** characterization of structural basis of glycans recogniti

关键词： Arabidopsis thaliana cell wall damage-associated molecular patterns DAMPs disease resistance glycans oligosaccharides pattern-triggered immunity PTl pattern recognition receptor PRRs

三位使用计算机代数系统数学家的不幸——我们能信任这些系统吗？

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

数学译林 2016年第4期35卷 360-364页

作者： antonio j. duran Mario Perez j.an L. Varona 张伟(译) 郭磊磊(译) 王世坤(校) 铁梦玲(校) 西班牙Universidad de Sevilla 西班牙Universidad de Zaragoza 西班牙Universidad de La Rioj.

1．引言如今，数学家经常使用计算机代数系统辅助他们的数学研究；他们做思考，然后把冗长的计算留给计算机．每个人都“知道”计算机比人们能更好地执行这些工作．但是，当然，我们必须相信这些强大的计算机代数系统的计算结果．首先... 详细信息

1．引言如今，数学家经常使用计算机代数系统辅助他们的数学研究；他们做思考，然后把冗长的计算留给计算机．每个人都“知道”计算机比人们能更好地执行这些工作．但是，当然，我们必须相信这些强大的计算机代数系统的计算结果．首先，让我们澄清这篇论文不是以任何方式去比较不同的计算机代数系统，而是作为一个例子，看看当数学家使用这类软件时，他们所期望水平的当前状态．尽管我们的例子是一个特定的软件系统，我们确信类似的情况可能在其它的程序也会发生．

关键词：计算机代数系统数学家信任三位软件系统数学研究计算结果期望

Intestinal anti-inflammatory effect of a plant sterol food supplement in experimental murine colitis and cell co-culture models

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年

作者： Mussa Makran antonio Cilla Rosa María Giner María Carmen Recio Luisa Tesoriere Alessandro Attanzio Guadalupe Garcia-Llatas Nutrition and Food Science Area， Faculty of Pharmacy and Food Sciences， University of Valencia.Av.Vicente Andrés Estellés s/n Department of Pharmacology， Faculty of Pharmacy and Food Sciences， University of Valencia.Av.Vicente Andrés Estellés s/n Department of Biological， Chemical and Pharmaceutical Sciences and Technologies， University of Palermo

The potential of a plant sterol food supplement （PS-FS） in addressing intestinal inflammation in vivo and in vitro was evaluated. As in vivo model， C57BL/6j.mice were exposed to 1.5% dextran sulfate sodium in three 5-day periods， with 10-day rest intervals in between， daily reciving PS-FS （35 mg PS/kg）. The in vitro approach involved a bi-cameral system with 8-day-differentiated Caco-2 （apical） and RAW264.7 cells （basolateral）. The bioaccessible fraction of PS-FS， obtained after INFOGEST 2.0 simulated gastrointestinal digestion， was added to the apical part （90 min）， followed by stimulation with lipopolysaccharide （1 μg/mL， 24 h）. PS-FS alleviated rectal bleeding and rebalanced pro- (tumor necrosis factor α， interleukin （IL）-6， and IL-8) and anti-inflammatory cytokines （IL-10）. Additionally， PS-FS ameliorated histopathological damage and enhancing occludin expression. A reduction in oxidative stress was evidenced by decreased myeloperoxidase activity and reactive oxygen species production. The anti-inflammatory mechanism included suppressing cyclooxygenase 2 expression， reducing prostaglandin E2production， and inhibiting the phosphorylation and nuclear translocation of the nuclear factor κB p65 subunit. This study reveals the potential of PS-FS as a therapeutic intervention for colitis. The alignment between in vivo and in vitro outcomes substantiates the appropriateness of the co-culture model to evaluate the anti-inflammatory activity of foods.

关键词：

Preclinical and clinical evidence of the association of colibactinproducing Escherichia coli with anxiety and depression in colon cancer

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World j.urnal of Gastroenterology 2024年第21期30卷 2817-2826页

作者： Fabien Rondepierre Maëva Meynier j.han Gagniere Vincent Deneuvy Anissa Deneuvy Gwenaelle Roche Elodie Baudu Bruno Pereira Richard Bonnet Nicolas Barnich Frédéric antonio Carvalho Denis Pezet Mathilde Bonnet Isabelle j.lenques Service de Psychiatrie de l’Adulte A et Psychologie Médicale CHU Clermont-FerrandClermont-Ferrand 63000France M2iSH UMR 1071INSERMUniversity of Clermont AuvergneINRAE USC 1382Clermont-Ferrand 63001France NeuroDol UMR 1107INSERMUniversity of Clermont AuvergneClermont-Ferrand 63001France Department of Digestive Surgery CHU de Clermont-FerrandClermont-Ferrand 63001France Biostatistics Unit Department of Clinical Research and InnovationCHU Clermont-FerrandClermont-Ferrand 63000France Department of Bacteriology CHU de Clermont-FerrandClermont-Ferrand 63001France UniversitéClermont Auvergne INPCNRSClermont Auvergne Institut PascalClermont-Ferrand 63000France

BACKGROUND The association between the intestinal microbiota and psychiatric disorders is becoming increasingly *** gut microbiota contributes to colorectal carcinogenesis(CRC),as demonstrated with colibactin-producing Escherichia coli(CoPEC).AIM To evaluate the association between CoPEC prevalence and anxiety-and depressive-like behaviors with both preclinical and clinical *** Patients followed after a CRC surgery and for whom the prevalence of CoPEC has been investigated underwent a psychiatric *** were compared according to the CoPEC *** parallel C57BL6/j.wild type mice and mice with a CRC susceptibility were chronically infected with a CoPEC *** behavior was assessed using the Elevated Plus Maze test,the Forced Swimming Test and the Behavior recognition system PhenoTyper®.RESULTS In a limited cohort,all patients with CoPEC colonization presented with psychiatric disorders several years before cancer diagnosis,whereas only one patient(17%)without CoPEC *** result was confirmed in C57BL6/j.wildtype mice and in a CRC susceptibility mouse model(adenomatous polyposis colimultiple intestinal neoplasia/+).Mice exhibited a significant increase in anxiety-and depressive-like behaviors after chronic infection with a CoPEC *** This finding provides the first evidence that CoPEC infection can induce microbiota-gut-brain axis disturbances in addition to its procarcinogenic properties.

关键词： Colorectal cancer Colibactin Escherichia coli Colibactin-producing Escherichia coli Inflammation Anxiety Depression Behavior