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Large dinosaur egg accumulations and their significance for understanding nesting behaviour

Geoscience Frontiers 2024年第5期15卷 467-488页

作者： L.Ezquerro R.coimbra B.Bauluz c.Núñez-Lahuerta T.Román-Berdiel M.Moreno-Azanza Departamento de Geodinámica Estratigrafía y PaleontologíaFacultad de Ciencias GeológicasUniversidad Complutense de MadridC/JoséAntonio Novais1228040MadridSpain Aragosaurus-IUcA:Recursos Geológicos y Paleoambientales.Departamento de ciencias de la Tierra.Facultad de ciencias Universidad de ZaragozaC/Pedro Cerbuna 1250009 ZaragozaSpain Museu da Lourinha LourinhaPortugal GeoBioTec Department of Earth SciencesNOVA School of Science and TechnologyUniversidade Nova de LisboaCaparicaPortugal GeoBioTec Departamento de GeocienciasUniversidade de AveiroAveiroPortugal Insitut catalàde Paleoecologia Humana i EvolucióSocial(IPHES-cERcA) Zona Educacional 4Campus Sescelades URV(Edifici W3)43007 TarragonaSpain Departament d´Història i Història de l´Art Universitat Rovira i VirgiliAv.Catalunya 3543002 TarragonaSpain Geotransfer IUcA Departamento de Ciencias de La TierraFacultad de CienciasUniversidad de ZaragozaZaragozaSpain

The accurate identification of dinosaur egg accumulations as nests or clutches is crucial for understanding the reproductive behaviour of these extinct ***,existing methods often rely on the presence of complete eggs and embryo remains,and sedimentological criteria that are only applicable to well-structured *** this study,we introduce an innovative approach to characterize egg accumulations in structureless sediments,where traditional nest structures may not be *** methodology employs a unique combination of sedimentological,taphonomic,geochemical,and geophysical proxies for the study of egg *** applied this approach to the egg accumulation from Paimogo(Jurassic,Portugal),traditionally interpreted as a *** findings reveal that the Paimogo egg assemblage is a secondary deposit,resulting from a flooding event in a fluvial plain that dismantled several allosauroid and crocodylomorph *** eggshell vapor conductance results,coupled with sedimentological evidence,suggest that allosauroid dinosaurs buried their eggs in the dry terrain of overbank areas close to a main channel during the breeding season,likely during the dry season to prevent the embryos from *** research underscores the necessity of multidisciplinary approaches in interpreting egg accumulations and offers a novel methodology for studying these accumulations in structureless *** findings provide new insights into the breeding behaviour and nesting preferences of these extinct organisms,contributing to our understanding of dinosaur ecology.

关键词： Breeding behaviour Theropod Taphonomy Stable isotopes Magnetic susceptibility Jurassic

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Summing Boolean Algebras

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Acta Mathematica Sinica,English Series 2004年第5期20卷 949-960页

作者： antonio AIZPURU antonio GUTI■RREZ-D■VILA Departamento de Matemáticas Universidad de CádizApdo4011510-Puerto Real(Cádiz)Spain

In this paper we will study some families and subalgebras■of■(N)that let us character- ize the unconditional convergence of series through the weak convergence of subseries ∑_(i∈A)x_i,A∈(?). As a consequence,we obtain a new version of the Orlicz Pettis theorem,for Banach *** also study some relationships between algebraic properties of Boolean algebras and topological properties of the corresponding Stone spaces.

关键词： Unconditionally convergent series (weak)Summation Orlicz Pettis theorem Boolean Algebras

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cryptic diversity within three South American whip spider species(Arachnida, Amblypygi)

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Zoological Research 2020年第5期41卷 595-598页

作者： Florian Reveillion Remi Wattier Sophie Montuire Leonardo Sousa carvalho Loic Bollache Universite de Bourgogne Franche comte Dijon 21000France Laboratoire chrono-Environnement UMR CNRS 6249Universite de Bourgogne Franche-ComteBesangon Cedex 25030France Laboratoire Biogeosciences UMR CNRS 6282Universite de Bourgogne Franche-ComteDijon 21000France EPHE PSL UniversityParis 75014France Universidade Federal do Piaui Campus Amilcar Ferreira SobralFlorianoPiaui 64800-606Brazil

DEAR EDITOR,cryptic diversity(cD),the presence of highly divergent phylogenetic lineages within closed morphological species,has been documented for many *** arachnid orders such as Araneae or Scorpiones are well studied and many cases of cD have been described therein;to date,however,related research on smaller arachnid orders,such as whip spiders(Amblypygi),remains lacking.

关键词： cry whip Great

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changes in cinnamic Acid Derivatives Associated with the Habituation of Maize cells to Dichlobenil

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Molecular Plant 2011年第5期4卷 869-878页

作者： Hugo Melida Jesus Alvarez Jose Luis Acebes antonio Encina Stephen c. Fry Area de Fisiologia Vegetal Facultad de CC Biologicas y Ambientales Universidad de Leon E-24071 Leon Spain Edinburgh cell Wall Group Institute of Molecular Plant Sciences School of Biological Sciences University of Edinburgh Daniel Rutherford Building The King＇s Buildings Edinburgh EH9 3JH UK

The habituation of cell cultures to cellulose biosynthesis inhibitors such as dichlobenil （DcB） represents a valu- able tool to improve our knowledge of the mechanisms involved in plant cell wall structural plasticity. Maize cell lines habituated to lethal concentrations of DcB were able to grow through the acquisition of a modified cell wall in which cellulose was partially replaced by a more extensive network of arabinoxylans. The aim of this work was to investigate the phenolic metabolism of non-habituated and DcB-habituated maize cell cultures. Maize cell cultures were fed [14c]cinnamate and the fate of the radioactivity in different intra-protoplasmic and wall-localized fractions throughout the culture cycle was analyzed by autoradiography and scintillation counting. Non-habituated and habituated cultures did not markedly differ in their ability to uptake exogenous [14c]cinnamic acid. However, interesting differences were found in the radiolabeling of low- and high-Mr metabolites. Habituated cultures displayed a higher number and amount of radiola-beled low-Mr compounds, which could act as reserves later used for polysaccharide feruloylation. DcB-habituated cultures were highly enriched in esterified [14c]dehydrodiferulates and larger coupling products. In conclusion, an extensive and early cross-linking of hydroxycinnamates was observed in DcB-habituated cultures, probably strengthening their cellulose-deficient walls.

关键词： cell wall Zea mays maize dichlobenil DcB dehydrodiferulate ferulate cinnamic acid.

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An updated checklist of macrofungi of Vivara island(gulf of Naples-Italy)

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Studies in Fungi 2019年第1期4卷 205-215页

作者： Lubrano Lavadera A Mazzella V D’antonio c Via Liberta’22 80079 Procida(NA) Stazione Zoologica Anton Dohrn Villa comunale 80121 Napoli LIPU Via M.chiaiolella 5880079 Procida

Islands are special environments for studying *** the Vivara island,an integral natural reserve,several taxonomic studies have been performed in the last decades but the taxonomic composition of the mycoflora is still not *** this reason,here we present an updated checklist of the mycoflora present on the island,part of a more complex work that allowed the mapping of all the living species present in this precious natural park,over the past decade.

关键词： Ascomycota Basidiomycota Fungi Natural reserve Taxonomy

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A Boundary Meshless Method for Solving Heat Transfer Problems Using the Fourier Transform

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Advances in Applied Mathematics and Mechanics 2011年第5期3卷 572-585页

作者： A.Tadeu c.S.chen J.antonio Nuno Simoes Department of civil Engineering Faculty of Sciences and TechnologyUniversity of CoimbraPolo II-Pinhal de Marrocos3030-290 CoimbraPortugal Department of Mathematics University of Southern MississippiHattiesburgMS 39406USA

Fourier transform is applied to remove the time-dependent variable in the diffusion *** non-harmonic initial conditions this gives rise to a non-homogeneous Helmholtz equation,which is solved by the method of fundamental solutions and the method of particular *** particular solution of Helmholtz equation is available as shown in[4,15].The approximate solution in frequency domain is then inverted numerically using the inverse Fourier transform *** frequencies are used in order to avoid aliasing phenomena and to allow the computation of the static *** numerical examples are given to illustrate the effectiveness of the proposed approach for solving 2-D diffusion equations.

关键词： Transient heat transfer meshless methods method of particular solutions method of fundamental solutions frequency domain Fourier transform

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Involvement of toll-like receptor 5 in mouse model of colonic hypersensitivity induced by neonatal maternal separation

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World Journal of Gastroenterology 2022年第29期28卷 3903-3916页

作者： Geoffroy Mallaret Amandine Lashermes Mathieu Meleine Ludivine Boudieu Julie Barbier Youssef Aissouni Agathe Gelot Benoit chassaing Andrew T Gewirtz Denis Ardid Frederic antonio carvalho Department of Pharmacology UMR 1107 NeuroDolUniversity of Clermont AuvergneClermont-Ferrand 63000France Department of Microbiology UniversitéParis-SaclayNational Research Institute for AgricultureFood and the EnvironmentAgroParisTechMicalis InstituteJouy-en-Josas 78350France Team“Mucosal Microbiota in chronic Inflammatory Diseases” INSERM U1016CNRS UMR 8104UniversitéParis CitéParis 75014France center for Inflammation Institute for Biomedical SciencesGeorgia State UniversityAtlantaGA30033United States Department of Pharmacology INSERM 1107 NeuroDOL/University of Clermont AuvergneClermont-Ferrand 63000France

BAcKGROUND chronic abdominal pain is the most common cause for gastroenterology consultation and is frequently associated with functional gastrointestinal disorders including irritable bowel syndrome and inflammatory bowel disease. These disorders present similar brain/gut/microbiota trialogue alterations, associated with abnormal intestinal permeability, intestinal dysbiosis and colonic hypersensitivity(cHS). Intestinal dysbiosis can alter colon homeostasis leading to abnormal activation of the innate immunity that promotes cHS, perhaps involving the toll-like receptors(TLRs), which play a central role in innate *** To understand the mechanisms between early life event paradigm on intestinal permeability, fecal microbiota composition and cHS development in mice with TLRs expression in *** Maternal separation model(NMS) cHS model, which mimics deleterious events in childhood that can induce a wide range of chronic disorders during adulthood were used. colonic sensitivity of NMS mice was evaluated by colorectal distension(cRD) coupled with intracolonic pressure variation(IPV) measurement. Fecal microbiota composition was analyzed by 16S rRNA sequencing from weaning to cRD periods. TLR mRNA expression was evaluated in ***, the effect of acute intrarectal instillation of the TLR5 agonist flagellin(Flic) on cHS in adult naive wildtype mice was *** Around 50% of NMS mice exhibited increased intestinal permeability and cHS associated with intestinal dysbiosis, characterized by a significant decrease of species richness, an alteration of the core fecal microbiota and a specific increased relative abundance of flagellated bacteria. Only TLR5mRNA expression was increased in colonocytes of NMS mice with cHS. Acute intrarectal instillation of Flic induced transient increase of IPV, reflecting transient cHS *** Altogether, these data suggest a pathophysiological continuum between intestinal dysbiosis a

关键词： chronic abdominal pain colonic hypersensitivity Toll-like receptors Intestinal microbiota Early life events

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Degradation of duloxetine: Identification of transformation products by UHPLc-ESI(+)-HRMS/MS,in silico toxicity and wastewater analysis

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Journal of Environmental Sciences 2019年第8期31卷 113-123页

作者： Rodrigo A.Osawa Ana P.carvalho Olinda c.Monteiro M.conceicao Oliveira M.Helena Florêncio centro de Química e Bioquímica Faculdade de Ciências Universidade de Lisboa Laboratório de FTIcR e Espectrometria de Massa Estrutural Faculdade de Ciências Universidade de Lisboa centro de Química Estrutural Instituto Superior Técnico Universidade de Lisboa

Duloxetine(DUL), an antidepressant drug, has been detected in surface water and wastewater effluents, however, there is little information on the formation of its transformation products(TPs). In this work, hydrolysis, photodegradation(UV irradiation) and chlorination experiments were performed on spiked distillated water, under controlled experimental conditions to simulate abiotic processes that can occur in the environment and wastewater treatment plants(WWTPs). Eleven TPs, nine from reaction with UV light and two from chlorine contact, were formed and detected by ultra-high performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry, and nine of them had their chemical structures elucidated upon analyses of their fragmentation patterns in MS/MS spectra. The formation and degradation of the TPs were observed. The parent compound was completely degraded after30 min in photodegradation and after 24 hr in chlorination. Almost all TPs were completely degraded in the experiments. The ecotoxicity and mutagenicity of the TPs were predicted based on several in silico models and it was found that a few of these products presented more ecotoxicity than DUL itself and six TPs showed positive mutagenicity. Finally, wastewater samples were analyzed and DUL and one TP, possibly formed by chlorination process, were detected in the effluent, which showed that WWTP not only did not remove DUL, but also formed a TP.

关键词： High resolution mass spectrometry Duloxetine Degradation processes Transformation products Wastewater analysis In silico toxicity

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chitosan Nanoparticles as Biostimulant in Lettuce (Lactuca sativa L.) Plants

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Phyton-International Journal of Experimental Botany 2024年第4期93卷 777-787页

作者： Silvia c.Ramírez-Rodríguez Pablo Preciado-Rangel Marcelino cabrera-De La Fuente Susana González-Morales Hortensia Ortega-Ortiz Tecnológico Nacional de México Instituto Tecnológico de TorreónEjido AnaTorreónCoahuila27170México Departamento de Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México Departamento de Materiales Avanzados Centro de Investigación en Química AplicadaSaltilloCoahuila25294México

Biodegradable nanoparticles such as chitosan nanoparticles (cSNPs) are used in sustainable agriculture since theyavoid damage to the environment;cSNPs have positive effects such as the accumulation of bioactive compoundsand increased productivity in plants. This study aimed to investigate the impact of applying cSNPs on lettuce,specifically focusing on enzymatic activity, bioactive compounds, and yield. The trial was conducted using a completelyrandomized design, incorporating cSNPs: 0, 0.05, 0.1, 0.2, 0.4, and 0.8 mg mL−1. The doses of 0.4 mg mL−1improve yields up to 24.6% increases and 0.1 mg mL−1 of cSNPs increases total phenols by 31.2% and antioxidantcapacity by 34.6%. In addition, when low concentrations of cSNPs (0.05 and 0.1 mg L−1) were applied, anincrease in catalase was determined. The cSNPs represent a good alternative to be used as a biostimulant in sustainableagriculture because they improve the yield and quality of lettuce by increasing the bioactive compounds.

关键词： Biostimulant bioactive compounds enzymatic activity

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Selective silencing of 2cys and type-ⅡB Peroxiredoxins discloses their roles in cell redox state and stress signaling

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Journal of Integrative Plant Biology 2015年第6期57卷 591-601页

作者： Patrícia Vidigal Ana Montserrat Martin-Hernandez cèlia Guiu-Aragonés Sara Amncio Luísa carvalho Departamento de Recursos Naturais Ambiente e Território (DRAT)/Centro de Botanica Aplicada à Agricultura (CBAA)Institute of AgronomyUniversity of Lisbon Institut de Recercai Tecnologia Agroalimentàries (IRTA) Centre for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB) Campus Universitat Autonoma de Barcelona (UAB)Edificio Center for Research in Agricultural Genomics (CRAG)

Peroxiredoxins （Prx） catalyse the reduction of hydrogen peroxide （H2O2） and, in association with catalases and other peroxidases, may participate in signal transduction by regulating intercel ular H2O2 concentration that in turn can control gene transcription and cel signaling. Using virus-induced-gene-silencing （VIGS）, 2-cys Peroxiredoxin （2cysPrx） family and type-II Peroxiredoxin B （PrxI B） gene were silenced in Nicotiana benthamiana, to study the impact that the loss of function of each Prx would have in the antioxidant system under control （22℃） and severe heat stress conditions （48 ℃）. The results showed that both Prxs, although in different organel es, influence the regeneration of ascorbate to a significant extent, but with different purposes. 2cysPrx affects abscisic acid （ABA） biosynthesis through ascorbate, while PrxIIB does it probably;through the xanthophyl cycle. Moreover, 2cysPrx is key in H2O2 scavenging and in consequence in the regulation of ABA signal-ing downstream of reactive oxygen species and PrxIIB provides an important assistance for H2O2 peroxisome scavenges.

关键词： 2-cys Peroxiredoxin abscisic acid ascorbate heat stress hydrogen peroxide peroxisome type-Ⅱ Peroxiredoxin B

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