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Performance of a Markovian neural network versus dynamic programming on a fishing control problem

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Probability, Uncertainty and Quantitative Risk 2023年第1期8卷 121-140页

作者： Mathieu Laurière gilles pagès Olivier Pironneau NYU shanghai Shanghai200122China LPMA Sorbonne Université75006ParisFrance LJLL Sorbonne Université75006ParisFrance

Fishing quotas are unpleasant but efficient to control the productivity of a fishing site.A popular model has a stochastic differential equation for the biomass on which a stochastic dynamic programming or a Hamilton-Jacobi-Bellman algorithm can be used to find the stochastic control–the fishing *** compare the solutions obtained by dynamic programming against those obtained with a neural network which preserves the Markov property of the *** method is extended to a multi species model and shows that the Neural Network is usable in high dimensions.

关键词： stochastic optimal control Partial differential equations Neural networks Population dynamics

Regulation of the m RNA half-life in breast cancer

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World Journal of Clinical Oncology 2014年第3期5卷 323-334页

作者： Paola Griseri gilles pagès United Orthopedic Corporation Genetica MedicaInstitute Giannina Gaslini University of Nice sophia Antipolis Institute for Research on Cancer and Aging of Nice (IRCAN) UMR CNRS/7284 U INSERM 108106189 NiceFrance

The control of the half-life of m RNA plays a central role in normal development and in disease progression. several pathological conditions, such as breast cancer, correlate with deregulation of the half-life of m RNA encoding growth factors, oncogenes, cell cycle regulators and inflammatory cytokines that participate in cancer. substantial stability means that a m RNA will be available for translation for a longer time, resulting in high levels of protein gene products, which may lead to prolonged responses that subsequently result in over-production of cellular mediators that participate in cancer. The stability of these m RNA is regulated at the 3'UTR level by different mechanisms involving m RNA binding proteins, micro-RNA, long non-coding RNA and alternative polyadenylation. All these events are tightly interconnected to each other and lead to steady state levels of target m RNAs. Compelling evidence also suggests that both m RNA binding proteins and regulatory RNAswhich participate to m RNA half-life regulation may be useful prognostic markers in breast cancers, pointing to a potential therapeutic approach to treatment of patients with these tumors. In this review, we summarize the main mechanisms involved in the regulation of m RNA decay and discuss the possibility of its implication in breast cancer aggressiveness and the efficacy of targeted therapy.

关键词： mRNA stability Breast cancer RNA binding proteins MicroRNA Alternative polyadenylation

A survey on automatic dashboard recommendation systems

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Visual Informatics 2024年第1期8卷 67-79页

作者： Praveen soni Cyril de Runz Fatma Bouali gilles Venturini LIFAT University of Tours64 avenue Jean PortalisTours37200France IUT C University of Lille53 Rue de l’AlmaRoubaix59100France

This paper presents a survey on automatic or semi-automatic recommendation systems that help users create *** starts by showing the important role that dashboards play in data science,and gives an informal definition of dashboards,i.e.,a set of visualizations possibly with linkage,a screen layout and user *** are mainly interested in systems that use a fully or partially automatic mechanism to recommend dashboards to *** automation includes the suggestion of data and visualizations,the optimization of the layout and the use of user *** position our work with respect to existing *** from a set of over 1000 papers,we have selected and analyzed 19 papers/systems along several *** main dimensions were the set of considered visualizations,the suggestion method,the utility/objective functions,the layout,and the user *** conclude by highlighting the main achievements in this domain and by proposing perspectives.

关键词： Automatic visualization Dashboard recommendation Multiple view interfaces

Petrology of spinel-Lherzolite Xenoliths from Mazéléand Others Northen Xenoliths Localities of Cameroon Volcanic Line: Exchange Reactions and Equilibrium state

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Open Journal of Geology 2024年第5期14卷 629-653页

作者： Nguihdama Dagwai Kamgang Pierre Mbowou Gbambié Isaac Bertrand Chazot gilles Ngounouno Ismaïla Department of Life and Earth sciences Higher Teachers&#8217 Training College University of Maroua Maroua Cameroon Department of Earth sciences Faculty of Science University of Yaound&#233 1 Yaound&#233 Cameroon Department of Mineral Prospecting and Exploration Technologies School of Geology and Mining Engineering University of Ngaoundere Meiganga Cameroon Ocean Geosciences Laboratory European University Institute of the Sea (IUEM) Brest France

The alkaline volcanism of the Cameroon Volcanic Line in its northern domain has raised many fresh enclaves of peridotites. The samples selected come from five (05) different localities (Liri, in the plateau of Kapsiki, Mazélé in the NE of Ngaoundéré, Tello and Ganguiré in the sE of Ngaoundéré and Likok, locality located in the west of Ngaoundé). The peridotite enclaves of the above localities show restricted mineralogical variation. Most are four-phase spinel-lherzolites, indicating that this is the main lithology that forms the lithospheric mantle below the shallow zone. No traces of garnet or primary plagioclase were detected, which strongly limits the depth range from which the rock fragments were sampled. The textures and the wide equilibrium temperatures (884˚C - 1115˚C) indicate also entrainment of lherzolite xenoliths from shallow depths within the lithosphere and the presence of mantle diapirism. The exchange reactions and equilibrium state established in this work make it possible to characterize the chemical composition of the upper mantle of each region and test the equilibrium state of the phases between them. Variations of major oxides and incompatible elemental concentrations in clinopyroxene indicate a primary control by partial melting. The absence of typical “metasomatic” minerals, low equilibration temperatures and enriched LREE patterns indicate that the upper mantle below septentrional crust of Cameroun underwent an event of cryptic metasomatic enrichment prior to partial melting. The distinctive chemical features, LREE enrichment, strong U, Ce and Pr, depletion relative to Ba, Nb, La, Pb, and T, fractionation of Zr and Hf and therefore ligh high Zr/Hf ratio, low La/Yb, Nb/La and Ti/Eu are all results of interaction of refractory peridotite residues with carbonatite melts.

关键词： Xenoliths Upper Mantle Northern Region Adamawa Cameroon Volcanic Line Exchange Reaction

Implementation of the Acclimatization Process for Ginger Plantlets (Zingiber officinale Roscoe)

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Open Journal of Applied sciences 2024年第8期14卷 2236-2248页

作者： Florentin Danton Kango gilles Habib Todjro Cacaï serge sètondji Houédjissin Jerome Anani Hounguè Jaures Riwan Uriel Kouke David Dègbé Allotchémè Corneille Ahanhanzo Central Laboratory of Plant Biotechnology and Plant Breeding Department of Genetic and Biotechnology Faculty of Science and Technology University of Abomey-Calavi Cotonou Benin

Ginger (Zingiber officinale Roscoe) is an important culinary and medicinal spice but is rarely cultivated due to the unavailability of seeds. Given the difficulties in adapting to plantlets produced in natural environments, it is important to analyze the survival conditions of ginger plantlets. For this reason, we varied the incubation temperature and humidity as well as the substrate during the weaning phase. Then, we varied the nutrients contained in the watering solution during the hardening phase. The statistical analysis showed that physical factors and substrates significantly influenced (p survival. Nutrient solutions significantly influenced the phylogenesis, rhizogenesis, and height growth of the plantlets. The suitable physical factors for good development of plantlets are a temperature of 26.54˚C and a humidity of 96.16%. The 1C2T2TC substrate (1 Compost + 2 soil + 2 Coconut Peat) had a significant survival rate of approximately 92.5%. During hardening, the Plantzym solution promoted good growth in terms of plantlet height (0.6 cm) and good development of roots (30 roots) and leaves (03 leaves). This work will make it possible to develop a technical seed production sheet for better development of ginger cultivation in Benin.

关键词： Acclimatization Zingiber officinale Weaning Nutrient solutions substrates

从国家文化安全的视角剖析海外华人的安全形势——基于欧洲华人社群的经验数据

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长沙理工大学学报（社会科学版） 2024年第4期39卷 120-130页

作者：李武智 gilles Guiheux 巴黎西岱大学亚非美社会科学研究中心法国巴黎75013

文章参考西方学术界关于东方主义和种族主义的相关理论,结合不同职业、不同年龄的欧洲华人社群的经验数据,剖析这一群体所处的文化安全处境,探索文化安全对其经济安全、人身安全和身份认同安全的影响。研究发现,西方社会对包括中国在内... 详细信息

文章参考西方学术界关于东方主义和种族主义的相关理论,结合不同职业、不同年龄的欧洲华人社群的经验数据,剖析这一群体所处的文化安全处境,探索文化安全对其经济安全、人身安全和身份认同安全的影响。研究发现,西方社会对包括中国在内的东方主义印象与对移民群体的种族主义偏见有着紧密联系,这使得欧洲华人群体的文化安全形势复杂且脆弱。保护海外华人个体的文化安全与保卫我国整体的文化安全密不可分,海外华人所处的文化安全形势对理解我国面临的整体文化安全挑战至关重要。

关键词：文化安全东方主义文化帝国主义种族主义移民海外华人

Application of near-infrared spectroscopy for fast germplasm analysis and classification in multi-environment using intact-seed peanut(Arachis hypogaea L.)

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Oil Crop science 2024年第2期9卷 132-141页

作者： Fentanesh Chekole Kassie gilles Chaix Hermine Bille Ngalle Maguette seye Coura Fall Hodo-Abalo Tossim Aissatou sambou Olivier Gibert Fabrice Davrieux Joseph Martin Bell Jean-Francois Rami Daniel Fonceka Joel Romaric Nguepjop Department of Plant Biology and Physiology Faculty of SciencesUniversity of Yaounde IYaoundeP.O.Box 337Cameroon Department of Plant science College of AgricultureWolaita Sodo UniversitySodoP.O.Box 138Ethiopia CIRAD UMR AGAP InstitutMontpellierFrance AGAP Institut Univ MontpellierCIRADINRAEInstitut AgroMontpellierFrance ChemHouse Research Group MontpellierFrance Centre D’Etudes Regional Pour L’Amelioration de L’Adaptation a La secheresse(CERAAs/IsRA) Route de KhomboleThiesBP 3320Senegal Dispositif de Recherche et de Formation en Partenariat Innovation et Amelioration Varietale en Afrique de L’Ouest(IAVAO)CERAASRoute de KhomboleThiesBP 3320Senegal CIRAD UMR QUALISUDSaint PierreFrance

Peanut is a worldwide oilseed crop and the need to assess germplasm in a non-destructive manner is important for seed nutritional *** this study,Near Infrared spectroscopy(NIRs)was applied to rapidly assess germplasm variability from whole seed of 699 samples,field-collected and assembled in four genetic and environmentbased sets:one set of 300 varieties of a core-collection and three sets of 133 genotypes of an interspecific population,evaluated in three environments in a large spatial scale of two countries,Mbalmayo and Bafia in Cameroon and Nioro in senegal,under rainfed *** elemental spectra were gathered on six subsets of seeds of each sample,after three rotation scans,with a spectral resolution of 16 cm-1over the spectral range of867 nm to 2530 *** were then processed by principal component analysis(PCA)coupled with Partial least squares-discriminant analysis(PLs-DA).As results,a huge variability was found between varieties and genotypes for all NIR wavelength within and between *** magnitude of genetic variation was particularly observed at 11 relevant wavelengths such as 1723 nm,usually related to oil content and fatty acid *** yielded the most chemical attributes in three significant PCs(i.e.,eigenvalues>10),which together captured 93%of the total variation,revealing genetic and environment structure of varieties and genotypes into four clusters,corresponding to the four samples *** pattern of genetic variability of the interspecific population covers,remarkably half of spectrum of the core-collection,turning out to be the ***,a PLs-DA model was developed and a strong accuracy of 99.6%was achieved for the four sets,aiming to classify each seed sample according to environment *** confusion matrix achieved for the two sets of Bafia and Nioro showed 100%of instances classified correctly with 100%at both sensitivity and specificity,confirming that their seed quality was different f

关键词： Groundnut Oilseed Near infrared spectroscopy Germplasm analysis Environment Nutritional Breeding

Photothermal phase change material microcapsules via cellulose nanocrystal and graphene oxide co-stabilized Pickering emulsion for solar and thermal energy storage

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science China Materials 2024年第10期67卷 3225-3235页

作者： Wang sun Zhe Zhang Zhen Zhang Nisha He Qiang Wei Liu Feng Zhenghao Wang Jie Wu Can Liu shiyu Fu Yelin Hou gilles sebe Guofu Zhou sCNU-TUE Joint Lab of Device Integrated Responsive Materials(DIRM) Institute of Electronic Paper DisplaysSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China state Key Laboratory of Biocatalysis and Enzyme Engineering School of Life SciencesHubei UniversityWuhan 430062China Key Laboratory of National Forestry and Grassland Administration on Highly Efficient Utilization of Forestry Biomass Resources in southwest China Southwest Forestry UniversityKunming 650224China Laboratoire de Chimie des Polymeres Organiques(LCPO) UMR 5629University of BordeauxCNRSBordeaux INPPessac F-33600France state Key Laboratory of Pulp and Paper Engineering South China University of TechnologyGuangzhou 510640China

Phase change materials(PCMs)have attracted significant attention in thermal management due to their ability to store and release large amounts of heat during phase ***,their widespread application is restricted by leakage *** PCMs within polymeric microcapsules is a promising strategy to prevent leakage and increase heat transfer area with ***,photothermal PCM microcapsules are particularly desirable for solar energy ***,we fabricated photothermal PCM microcapsules with melamine-formaldehyde resin(MF)as shell using cellulose nanocrystal(CNC)and graphene oxide(GO)co-stabilized Pickering emulsion droplets as *** displays outstanding Pickering emulsifying ability and can facilitate the fixation of GO at the oil-water interface,resulting in a stable CNC/GO co-stabilized PCM Pickering emulsion.A polydopamine(PDA)layer was coated in-situ on the emulsion droplets via oxidization self-polymerization of ***,GO was reduced to reduced GO(rGO)due to the reducing ability of *** outmost MF shell of the PCM microcapsules was formed in-situ through the polymerization and crosslinking of MF *** resulted PCM@CNC/rGO/PDA/MF microcapsules exhibit uniform sizes in the micrometer range,excellent leakage-proof performance,high phase change enthalpy(175.4 J g^(−1))and PCM encapsulation content(84.2%).Moreover,the presence of rGO and PDA endows PCM@CNC/rGO/PDA/MF microcapsules with outstanding photothermal conversion *** temperature of PCM@CNC/rGO/PDA/MF microcapsule slurries(15wt.%)can reach 73°C after light irradiation at 1 W cm^(−2).Therefore,photothermal PCM@CNC/rGO/PDA/MF microcapsules are promising for solar energy harvesting,thermal energy storage,and release in various applications,such as energy-efficient buildings and smart textiles.

关键词： graphene oxide cellulose nanocrystal Pickering emulsion phase change material microcapsule photothermal

从Grothendieck到Naor:漫步Banach空间的度量分析学

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数学译林 2024年第2期43卷 105-118页

作者： gilles Godefroy 赵振江(译) 唐境(校) 不详

1954年7月,Alexandre Grothendieck(格罗滕迪克)给他的“关于拓扑向量空间理论的相对完整的课程,或者更确切地说,它是一个理论的部分,这个理论可以被认为是***(巴拿赫)的想法的直接延伸和结果”写了导言,该书以《拓扑向量空间(Espaces v... 详细信息

1954年7月,Alexandre Grothendieck(格罗滕迪克)给他的“关于拓扑向量空间理论的相对完整的课程,或者更确切地说,它是一个理论的部分,这个理论可以被认为是***(巴拿赫)的想法的直接延伸和结果”写了导言,该书以《拓扑向量空间(Espaces vectoriels topologiques)》为名在圣保罗出版.

关键词：拓扑向量空间 Banach空间巴拿赫度量分析圣保罗