90,587 research outputs found
« Politique industrielle et liberté du chef d'entreprise »
No full textPerrin-Pelletier F. « Politique industrielle et liberté du chef d'entreprise ». In: Revue d'économie industrielle, vol. 31, 1er trimestre 1985. Les restructurations de l'industrie française. pp. 252-260
[Catalogue des pastels par P. Pelletier] / [expert] F. Cuérel
No full text[Vente. Art. 1903-02-20. Paris][Collection. Art. Pelletier, P.. 1903]Référence bibliographique : Lugt, 60849Appartient à l’ensemble documentaire : VenteEST2Avec mode text
M. F. Durand, J. Lévy, Denis Retaillé, Le monde : espaces et systèmes
No full textPelletier Philippe. M. F. Durand, J. Lévy, Denis Retaillé, Le monde : espaces et systèmes. In: Revue de géographie de Lyon, vol. 69, n°3, 1994. Représentations spatiales et pratiques pédagogiques de la géographie. p. 260
Les raisons et les déraisons d'un abécedaire Reclus
No full textCet Abécédaire est né de rencontres... Outre le contact avec les contributeurs de la constellation Reclus, que ce soit par un filament ou par un autre, c’est l’entretien avec Xavier Douroux, responsable des Presses du Réel, qui a été son étincelle en 2014. Entre temps, Xavier nous a quitté, de nombreux contributeurs pressentis aussi, le Covid-19 est passé par là, des chemins ont bifurqué, de nouveaux liens se sont tissés... Bref, le temps a passé, mais pas la volonté de mener à bien ce projet qui nous semble plus que jamais d’actualité.
La pensée d’Élisée Reclus est inscrite dans des histoires et dans l’Histoire. Elle peut, parfois, paraître anachronique. Certains de ses propos sont datés, des faits sont obsolètes. Mais nous sommes convaincus qu’elle possède une force et une puissance qui peut nous permettre de sortir de certaines impasses dans lesquelles se trouvent nos sociétés.
Elle est d’autant plus actuelle qu’elle nous permet de déconstruire les rapports de pouvoir et de domination en nous engageant à être dans la relation, dans l’attention, non seulement dans l’espoir d’un lendemain meilleur, mais bien dans la construction d’un ici et maintenant qui tisse des liens et contribue à embellir, nous-mêmes tout d’abord et par là-même le « monde »
FIGURE 1 in Review of sexual dimorphism in brachypyline oribatid mites
No full textFIGURE 1: A, B, Autogneta schusteri Behan-Pelletier - adult male, differential interference contrast micrographs, A – habitus, B – detail of posterior of notogaster; C-H, Scanning electron micrographs, C, D, Symbioribates aokii Karasawa and Behan-Pelletier - adult male, C – habitus, D – detail of posterior of notogaster; E – Oribatella oregonensis Behan-Pelletier and Walter - adult male, notogaster; F-H, Zachvatkinibates schatzi Behan-Pelletier and Eamer - adult male, F – habitus, G – lateral of hysterosoma, H – detail of posterior of notogaster.Published as part of Behan-Pelletier, V.M., 2015, Review of sexual dimorphism in brachypyline oribatid mites, pp. 127-146 in Acarologia 55 (2) on page 135, DOI: 10.1051/acarologia/20152163, http://zenodo.org/record/540388
FIGURE 1 in Review of sexual dimorphism in brachypyline oribatid mites
No full textFIGURE 1: A, B, Autogneta schusteri Behan-Pelletier - adult male, differential interference contrast micrographs, A – habitus, B – detail of posterior of notogaster; C-H, Scanning electron micrographs, C, D, Symbioribates aokii Karasawa and Behan-Pelletier - adult male, C – habitus, D – detail of posterior of notogaster; E – Oribatella oregonensis Behan-Pelletier and Walter - adult male, notogaster; F-H, Zachvatkinibates schatzi Behan-Pelletier and Eamer - adult male, F – habitus, G – lateral of hysterosoma, H – detail of posterior of notogaster.Published as part of Behan-Pelletier, V.M., 2015, Review of sexual dimorphism in brachypyline oribatid mites, pp. 127-146 in Acarologia 55 (2) on page 135, DOI: 10.1051/acarologia/20152163, http://zenodo.org/record/540388
Sciences impériales et discours hétérodoxes: la géographie d’Élisée Reclus et le colonialisme français
No full textLes ouvrages géographiques d’Élisée Reclus, parmi les plus lus en Europe dans la deuxième moitié du XIXe siècle, constituent à cette époque l’une des sources principales, pour les spécialistes comme pour le public cultivé, où trouver des renseignements sur l’Ailleurs extra européen. Comme Reclus n’a pas été seulement un célèbre géographe, mais aussi l’un des protagonistes de la naissance du mouvement socialiste et anarchiste international, son œuvre scientifique nous aide à connaître les orientations de l’opinion publique progressiste, européenne et française, à l’époque coloniale. Nous interrogeons ici son œuvre et ses archives à la lumière des débats qui concernent le rôle de la France dans la colonisation et la position de ce géographe hétérodoxe, sur son approche du colonialisme français, en nous focalisant sur le cas emblématique de l’occupation de l’Algérie
Synergistic effects between analogs of DNA and RNA improve the potency of siRNA-mediated gene silencing
No full textWe report that combining a DNA analog (2?F-ANA) with rigid RNA analogs [2?F-RNA and/or locked nucleic acid (LNA)] in siRNA duplexes can produce gene silencing agents with enhanced potency. The favored conformations of these two analogs are different, and combining them in a 1–1 pattern led to reduced affinity, whereas alternating short continuous regions of individual modifications increased affinity relative to an RNA:RNA duplex. Thus, the binding affinity at key regions of the siRNA duplex could be tuned by changing the pattern of incorporation of DNA-like and RNA-like nucleotides. These heavily or fully modified duplexes are active against a range of mRNA targets. Effective patterns of modification were chosen based on screens using two sequences targeting firefly luciferase. We then applied the most effective duplex designs to the knockdown of the eIF4E binding proteins 4E-BP1 and 4E-BP2. We identified modified duplexes with potency comparable to native siRNA. Modified duplexes showed dramatically enhanced stability to serum nucleases, and were characterized by circular dichroism and thermal denaturation studies. Chemical modification significantly reduced the immunostimulatory properties of these siRNAs in human peripheral blood mononuclear cells. <br/
Revision of Fenestrobates (Acari, Oribatellidae) with description of F. marauni sp. nov., from South America, and new diagnosis for Oribatellidae
No full textErmilov, Sergey G., Behan-Pelletier, Valerie M. (2014): Revision of Fenestrobates (Acari, Oribatellidae) with description of F. marauni sp. nov., from South America, and new diagnosis for Oribatellidae. Zootaxa 3827 (2): 258-272, DOI: http://dx.doi.org/10.11646/zootaxa.3827.2.
Protectoribates Behan-Pelletier 2017, gen. nov.
No full textProtectoribates gen. nov. Figs. 1–7 Type species: Protectoribates occidentalis sp. nov. Diagnosis. Adult. With character states of Tegoribatidae (Grandjean (1953, 1954), Woolley (1965) Fredes & Martínez (2016), and see below). Species comprising this genus are unique among poronotic Brachypylina (Grandjean 1954) by having the following combination of character states. Rostrum with medial keel extending posteriorly; rostrum rounded anteriorly, without medial incision. Lamella long, fused, with V-shaped indentation anteriorly, covering all of prodorsum in dorsal aspect, without longitudinal line medially. Tutorium narrow lamelliform, cusp triangular. Genal tooth well-developed, pointed distally, with ridge along length. Bothridium with lateral and medial scales. Porose areas Ad and Am present, Al absent, Ah expressed as deep, round saccule. Dorsophragmata medially separated. Octotaxic system as 4 pairs of porose areas. Notogaster with non-overlapping posterior tectum. Pteromorph well-developed, without hinge; lenticulus absent; hexagonal pattern absent anteriorly on notogaster. Notogaster with 10 pairs of setae; setae not apobasic. Epimere I without necklace of tubercles. Epimeral setation 3-1-3-3. Custodium broadly rounded distally, or not. Sejugal apodeme and apodeme 3 welldeveloped. Genital setation 6 pairs, with 3 setae along anterior margin of each plate. Band of darkened integument posterior to genital plates. Postanal porose area absent. Subcapitulum diarthric, without tectum on mentum. Axillary saccule present. Legs monodactylous. Tibia II with large, dentate carina anterodorsally. Tibia IV with solenidion. Femur I without bend at level of seta d. Juvenile instars Apheredermous; line of dehiscense incomplete; integument plicate, without hysterosomal macrosclerites or excentrosclerites, cerotegument as tightly packed platelets, 1 in diameter, covering all of body and leg segments. Prodorsal porose region present. Gastronotal setation unideficient; nymphs with 15 pairs of setae (f 1 absent). Gastronotal setae of c, d, l and p series monomorphic, short, without barbs, acuminate (Fig. 6). Rostral, lamellar, and interlamellar setae subequal to gastronotal setae. Description. Adult. Integument. Cerotegument present laterally on podosoma, finely and densely granulate (Fig. 5E). Integument microtuberculate throughout; U-shaped depression extending from coxisternal region to posterior of anal plates (Fig. 5B). Prodorsum. Rostrum with smooth margin, without medial incision (Fig. 5C); broadly rounded keel extending from margin posteriorly to underneath lamella (Figs. 5C, D). Rostral seta heavily barbed laterally, directed anteromedially (Fig. 3). Lamella long, pair fused, covering all of prodorsum in dorsal aspect (Figs. 1, 5A), without longitudinal line medially; nerve canal for seta le evident (Fig. 7A). Seta le arising anterodorsally on lamella. Fused lamella with short, V-shaped indentation anteriorly; concave posterolaterally, accommodating bothridium (Figs. 1, 7A, and insert). Translamella absent. Exobothridial seta present (alveolus only indicated on Fig. 3). Bothridial wall expanded medially and laterally, with scales, without lateral indentation (Fig. 7A, insert). Porose area Ad present. Dorsophragmata separate (Fig. 1). Notogaster. Longer than wide; with immovable pteromorphs having smooth margins, without dens anteroventrally (Fig. 5B). Anterior margin straight, transverse, without ridges in region lateral to bothridium (Figs 1, 5A). Without subsurface anteromedial hexagonal pattern. Octotaxic system expressed as 4 pairs of porose areas (Fig. 1); without sexual dimorphism. With 10 pairs of short setae; distance h 1 -h 1 wider than distance p 1 -p 1. Lateral Region of Podosoma. Genal tooth, pointed triangular, with longitudinal ridge (Figs. 3, 5E). Tutorium narrow, lamelliform, lying parallel to dorsal contour of prodorsum in lateral aspect, seta ro inserted at base of tutorial cusp (Figs. 3, 5D). Pedotectum I convex dorsally, without ventral depression (Fig. 3). Pedotectum II present, without tubercle close to body wall. Custodium present, with long, free distal region, broadly rounded or not (Figs. 3, 7B). Discidium strongly curved lamina (Figs. 3, 7B). Porose area Al absent. Humerosejugal porose organs Am and Ah present, Am porose area, Ah saccule (Figs. 7C, D). Ventral. Epimere I without anterior necklace of small tubercles. Epimeral setal formula 3-1-3-3. Genital plates with 6 setae, 3 on anterior margin; 1 pair aggenital setae; 3 pairs adanal setae and 2 pairs anal setae (Fig. 2). Lyrifissure iad at anterolateral edge of anal plate. Postanal porose area absent. Band of darker integument extending transversely between genital and anal plates (Fig. 2). Gnathosoma. Chelicera chelate-dentate. Mentum without tectum, without recurved ridge distally (Fig. 5E). Palp setal formula 0-2-1-3-9(1); eupathidium acm shorter than solenidion, forming double horn with solenidion along length, but partially separated basally (as in Tectoribates Behan-Pelletier & Walter 2013, their Fig. 7E). Legs. Monodactylous (Figs. 4A–C). Leg setal formula I–IV, solenidia in parentheses: I: 1-5-3(1)-4(2)-20(2); II: 1-5-3(1)-4(1)-15(2); III: 2-2-1(1)-3(1)- 15; IV: 1-2-2-3(1)-12. Genua I and II without tooth ventrally (Figs. 4A, B). Porose areas on femora I to IV and trochanters III and IV. Femur I without bend medially at level of seta d. Tibia II with anterodorsal dentate carina (Figs. 4B, 5D, 7E). Seta s on tarsus I eupathidial, positioned distal to setae (a). Solenidia on tarsus II shorter than setae on segment (Fig. 7E); ω1 not most proximal setiform structure on segment. Femur III with seta l’ absent (2 setae); seta v' of genua I and II present. On genua and tibiae I and II setae l” subequal in shape to l’, setiform (Figs. 4A, B). Seta pv” on tarsus II, comb-like (Fig. 7E). Anterodorsal knobs or spines absent from tibia I. Etymology. The derivation of Protectoribates is from the Latin ‘protector’, meaning "protector", and ‘oribates’ from Greek, a common ending for generic names in Tegoribatidae. It refers to a possible function of the dentate carina on tibia II. Remarks. Adults of Protectoribates are distinguished from those of all other genera by having the combination of: dentate carina on tibia II, gnathosoma without tectum on mentum, pteromorphs without hinge, Ah developed as saccule; band of darkened integument posterior to genital plates, postanal porose area absent (Table 4). Among these traits, the dentate carina on tibia II and the form of humerosejugal organ Ah are considered apomorphic. Immatures of Protectoribates are similar to those of Tectoribates (T. alcicampestris Behan-Pelletier & Walter, 2013 and T. borealis Behan-Pelletier & Walter, 2013) in being plicate, apheredermous with monomorphic hysterosomal setae of series c, d, l, and h. Hysterosomal setae of immature Hypozetes laysanensis Aoki, 1964 are also monomorphic, but larval seta dp are twice the length of other hysterosomal setae and are borne on distinct tubercles (Behan-Pelletier 2001). Similarly, in larva and nymphs of Plakoribates multicuspidus Popp, 1960 hysterosomal setae are monomorphic in shape, but seta dp are twice the length of other hysterosomal setae and are also borne on distinct tubercles (Shereef 1977). In contrast, known immatures of Tegoribates are plicate and eupheredermous, integridorsal (retain centrodorsal setae) and hysterosomal setae are dimorphic (see below).Published as part of Behan-Pelletier, Valerie M., 2017, Tegoribatidae of North America, with proposal of Protectoribates gen. nov., and new species (Acari, Oribatida, Tegoribatidae) in Zootaxa 4337 (2) on pages 153-155, DOI: 10.11646/zootaxa.4337.2.1, http://zenodo.org/record/101863
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