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Chitinase 10 controls chitin amounts and organization in the wing cuticle of Drosophila

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Insect Science 2020年第6期27卷 1198-1207页

作者： Wei Dong Ying-Hao Gao Xu-Bo Zhang bernard Moussian Jian-Zhen Zhang Institute of Applied Biology Shanxi UniversityTaiyuanChina College of Life Science Shanxi UniversityTaiyuanChina Interfaculty Institute of Cell Biology University of TubingenTubingenGermany Universite Cote d'Azur CNRSInsermiBVParc ValroseNice CEDEX 2France

Wings are essential for insect fitness.A number of proteins and enzymes have been identified to be involved in wing terminal differentiation,which is characterized by the formation of the wing ***,we addressed the question whether chitinase 10(Cht10)may play an important role in chitin organization in the wings of the fruit fly Drosophila ***,we first found that Cht10 expression coincides with the expression of the chitin synthase coding gene *** suggests that the respective proteins may cooperate during wing *** tissue-specific RNA interference experiments,we demonstrate that suppression of Cht10 causes an excess in chitin amounts in the wing *** organization is severely disrupted in these *** on these data,we hypothesize that Cht10 restricts chitin amounts produced by Kkv in order to ensure normal chitin organization and wing cuticle *** addition,we found by scanning electron microscopy that Cht10 suppression also affects the cuticle *** turn,cuticle inward permeability is enhanced in Cht10 Aess ***,flies with reduced Cht 10 function are unable to *** conclusion,Cht10 is essential for wing terminal differentiation and function.

关键词： Cht10 chitin cuticle Drosophila melanogaster,Kkv wing

Synopsis of Leymus Hochst.(Triticeae:Poaceae)

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Journal of Systematics and Evolution 2009年第1期47卷 67-86页

作者： bernard R.BAUM Eastern Cereals and Oilseeds Research Centre Agriculture and Agri-Food CanadaCentral Experimental Farm

Leymus is a genus in the Triticeae tribe, Poaceae. The taxa of this genus are allopolyploid species which possess the Ns and Xm genomes. According to cytological, cytogenetic and molecular genetic analyses, some species of Hystrix and Elymus ought to be transferred to this genus. A world revision of the genus Leymus is needed. In this paper we summarize experimental results, provide a key to sections, species and varieties, and list all the taxa we recognize in Leymus with their synonyms. This synopsis is a new taxonomic system to be used for the revision of Leymus.

关键词： genome Leymus new taxonomic system section species varieties

Recent Applications and Future Development Trends in Electromagnetic Processing of Metals and Non-Metallic Materials

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Journal of Iron and Steel Research International 2012年第S1期19卷 50-54页

作者： NACKE bernard BAAKE Egbert Institute of Electrotechnology Leibniz Universitt HannoverWilhelm-Busch-Str.4Hannover D-30167Germany

A wide range of industrial metallurgical heating and melting processes are carried out using electrothermal and electromagnetic *** application of electromagnetic processing offers many advantages from technological, ecological and economical point of *** the technology level of the electromagnetic heating and melting installations and processes used in the industry today is very high,there are still potentials for improvement and *** this paper recent applications and future development trends for efficient use of electromagnetic processing technologies in metallurgical and non-metallic material processes are described along selected examples in the field of heating for melting,forging,joining and solidification.

关键词： induction melting induction heating electromagnetic stirring solidification electromagnetic processing

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EXPLANT AXENISATION FOR TISSUE CULTURE IN MARINE MACROALGAE

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Chinese Journal of Oceanology and Limnology 1992年第3期10卷 268-277页

作者：刘学武 bernard Kloareg Centre d'Etudes Oceanologiques et de Biologie Marine CNRS UPR 4601 et Universite Paris VI BP 74 F 29682 Roscoff Cedex France

Unialgal explants from Luminaria digitata, and from a variety of red algae were obtained by hand removing the visible epiphytes, and stirring the tissue in the presence of glass beads. Two antibiotic mixtures were found to be efficient in removing the contaminating fungi and bacteria from the algae. The procedure proved suitable as a primary step in the tissue culture of the investigated species.

关键词： unialgai. a.xenic. antibiotics disinfectants callus regeneration

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Introduction to management science / bernard W. Taylor III. 7th ed.

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Clonidine attenuates morphine withdrawal and subsequent drug sensitization in rhesus monkeys

2002年

作者： bernard W. Taylor III.

Includes index.

ISBN: (纸本)0130331902

Includes index.

关键词： Management science.

来源：畅想之星图书光盘版（南... 评论

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Acta Pharmacologica Sinica 2007年第4期28卷 473-483页

作者： bernard LE FOLL Behavioral Neuroscience Branch Intramural Research ProgramNational Institute on Drug AbuseNational Institutes ofHealthBaltimoreMaryland 21224USA

Aim:Clonidine is an α2adrenoceptor agonist that is frequently used to reducewithdrawal symptoms during opioid detoxification in *** long-termeffects of clonidine on withdrawal symptoms and its effects on subsequent drugexposure have not been thoroughly *** aim of the study was todetermine if clonidine administered during morphine withdrawal in rhesus mon-keys produces long-lasting effects on withdrawal symptoms and alters the effectsof subsequently taken drugs of ***:Adult male rhesus monkeyswere treated with increasing doses of morphine for 90 d to induce opiate (narcotic)*** immediate and long-lasting effects of 1 week’s administration ofclonidine were measured via the recording of morphine withdrawal signs and thesubsequent effects of challenge injections of morphine or ***:Monkeys chronically treated with morphine displayed withdrawal signs that lasted2 weeks after cessation of morphine administration and displayed sensitized re-sponses to subsequent morphine and cocaine *** significantlyreduced certain morphine withdrawal signs and overall withdrawal score,but theseeffects did not persist upon cessation of clonidine *** to theeffects of morphine and cocaine were significantly reduced in monkeys previ-ously treated with ***:Our results suggest that in addition toits short-term alleviating effect on morphine withdrawal signs,clonidine may re-duce subsequent effects of drugs of abuse after prolonged abstinence.

关键词： cocaine withdrawal drug challenge crosssensitization recurrence monkeys

Spatio-Temporal evolutive Data Infrastructure: a Spatial Data Infrastructure for managing data flows of Territorial Statistical Information

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International Journal of Digital Earth 2017年第3期10卷 257-283页

作者： Camille bernard Marlène Villanova-Oliver Jérôme Gensel Benoit Le Rubrus Univ.Grenoble Alpes CNRSLIGGrenobleFrance

The observation of demographical,economical or environmental indicators over time through maps is *** enables analysing territories and helps stakeholders to take ***,the understanding of Territorial Statistical Information(TSI)is compromised unless comprehensive description of both the statistical methodology used and the spatial and temporal references are ***,in this paper,we stress the importance of metadata descriptions and of their quality that helps assessing data ***,time-series of such TSI are *** enable analysing a territory over a long period of time and likewise judging the effectiveness of *** light of these observations,we present Spatio-Temporal evolutive Data Infrastructure(STeDI)an innovative Spatial Data Infrastructure(SDI)that enriches the description of a Digital Earth,providing a virtual representation of territories and of their evolution through statistics and *** aims at managing a whole dataflow of multi-dimensional,multi-scale and multi-temporal TSI,from their acquisition to their dissemination to scientists and *** content of this SDI evolves autonomously thanks to automated processes and to a Web platform that help improving the quality of datasets uploaded by ***,STeDI allows visualizing up-to-date time-series reflecting the human activities on a given *** helps policy-makers in their decision-making process.

关键词： Spatial Data Infrastructure Territorial Statistical Information metadata data quality INSPIRE

Template-free nanostructured particle growth via a one-pot continuous gradient nanoprecipitation

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Aggregate

Aggregate 2024年第1期5卷 409-418页

作者： Xie Cheng Shuai Wang Julien bernard François Ganachaud Xibo Yan School of Chemical Engineering and Technology Tianjin UniversityTianjinChina College of Food Science and Engineering Tianjin University of Science and TechnologyTianjinChina Universitéde Lyon CNRSUniversitéClaude Bernard Lyon 1INSA-LyonUniversitéJean MonnetUMR5223Ingénierie des Matériaux PolymèresVilleurbanne CedexFrance

Engineered nanoparticles have emerged as new types of materials for a wide range of applications from therapeutics to ***,fabricating nanomaterials presenting complex inner morphologies and shapes in a simple manner remains a great ***,we report the template-free one-pot continuous gradient nanoprecipitation of different types of non-compatible polymers to spontaneously form nanostructured *** continuous addition of antisolvent induces precipitation and(re)organization of polymer chains at the forming particle interface,ultimately and naturally developing complex inner morphologies and shapes while particle *** low-energy-cost bottom-up assembly approach applies to various functional polymers,possibly embedded with metal nanoparticles,for continuous growth into well-organized *** crosslinking of the particles and core removal allows both confirming the building process and leading to hollow or multivoid nanomaterials.

关键词： aggregation nanoprecipitation phase diagrams polymeric nanoparticles self-assembly