bluuebunny/crossref_metadata_2025 huggingface dataset:
Inhaled Pollutants: The Molecular Scene behind Respiratory and Systemic Diseases Associated with Ultrafine Particulate Matter
Authors: Traboulsi Hussein , Guerrina Necola , Iu Matthew , Maysinger Dusica , Ariya Parisa , Baglole Carolyn
Published: January 2017

Air pollution of anthropogenic origin is largely from the combustion of biomass (e.g., wood), fossil fuels (e.g., cars and trucks), incinerators, landfills, agricultural activities and tobacco smoke. Air pollution is a complex mixture that varies in space and time, and contains hundreds of compounds including volatile organic compounds (e.g., benzene), metals, sulphur and nitrogen oxides, ozone and particulate matter (PM). PM0.1 (ultrafine particles (UFP)), those particles with a diameter less than 100 nm (includes nanoparticles (NP)) are considered especially dangerous to human health and may contribute significantly to the development of numerous respiratory and cardiovascular diseases such as chronic obstructive pulmonary disease (COPD) and atherosclerosis. Some of the pathogenic mechanisms through which PM0.1 may contribute to chronic disease is their ability to induce inflammation, oxidative stress and cell death by molecular mechanisms that include transcription factors such as nuclear factor κB (NF-κB) and nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Epigenetic mechanisms including non-coding RNA (ncRNA) may also contribute towards the development of chronic disease associated with exposure to PM0.1. This paper highlights emerging molecular concepts associated with inhalational exposure to PM0.1 and their ability to contribute to chronic respiratory and systemic disease.
Hydrothermal Treatment of Tannin: A Route to Porous Metal Oxides and Metal/Carbon Hybrid Materials
Authors: Braghiroli Flavia , Fierro Vanessa , Szczurek Andrzej , Gadonneix Philippe , Ghanbaja Jaafar , Parmentier Julien , Medjahdi Ghouti , Celzard Alain
Published: January 2017

In the present paper, porous materials were prepared from the hydrothermal treatment of aqueous solutions of tannin, a renewable phenolic resource extracted from tree barks, containing dissolved salts of transition metals: V, Cr, Ni and Fe. Hydrothermal treatment produced carbonaceous particles doped with the aforementioned metals, and such materials were treated according to two different routes: (i) calcination in air in order to burn the carbon and to recover porous oxides; (ii) pyrolysis in inert atmosphere so as to recover porous metal/carbon hybrid materials. The nature of the metal salt was found to have a dramatic impact on the structure of the materials recovered by the first route, leading either to nano-powders (V, Cr) or to hollow microspheres (Ni, Fe). The second route was only investigated with iron, leading to magnetic Fe-loaded micro/mesoporous carbons whose texture, pore volumes and surface areas gradually changed with the iron content.
Radial Distortion from Epipolar Constraint for Rectilinear Cameras
Authors: Lehtola Ville , Kurkela Matti , Rönnholm Petri
Published: January 2017

Lens distortion causes difficulties for 3D reconstruction, when uncalibrated image sets with weak geometry are used. We show that the largest part of lens distortion, known as the radial distortion, can be estimated along with the center of distortion from the epipolar constraint separately and before bundle adjustment without any calibration rig. The estimate converges as more image pairs are added. Descriptor matched scale-invariant feature (SIFT) point pairs that contain false matches can readily be given to our algorithm, EPOS (EpiPOlar-based Solver), as input. The processing is automated to the point where EPOS solves the distortion whether its type is barrel or pincushion or reports if there is no need for correction.
Compressive Properties of Open-Cell Al Hybrid Foams at Different Temperatures
Authors: Liu Jiaan , Si Fujian , Zhu Xianyong , Liu Yaohui , Zhang Jiawei , Liu Yan , Zhang Chengchun
Published: January 2017

Hybrid Ni/Al foams were fabricated by depositing electroless Ni–P (EN) coatings on open-cell Al foam substrate to obtain enhanced mechanical properties. The microstructure, chemical components and phases of the hybrid foams were observed and analyzed by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), respectively. The mechanical properties of the foams were studied by compressive tests at different temperatures. The experiment results show that the coating is mainly composed of Ni and P elements. There was neither defect at the interface nor crack in the coatings, indicating that the EN coatings had fine adhesion to the Al substrate. The compressive strengths and energy absorption capacities of the as-received foam and hybrid foams decrease with the increasing testing temperatures, but the hybrid foams exhibit a lower decrement rate than the as-received foam. This might be attributed to the different failure mechanisms at different testing temperatures, which is conformed by fractography observation.
Evolution of Helium Bubbles and Discs in Irradiated 6H-SiC during Post-Implantation Annealing
Authors: Shen Qiang , Zhou Wei , Ran Guang , Li Ruixiang , Feng Qijie , Li Ning
Published: January 2017

The single crystal 6H-SiC with [0001] crystal direction irradiated by 400 keV He+ ions with 1 × 1017 ions/cm2 fluence at 400 °C were annealed at 600, 900, 1200 and 1400 °C for different durations. The evolution of helium bubbles and discs was investigated by transmission electron microscopy. An irradiated layer distributed with fine helium bubbles was formed with a width of ~170 nm after helium ion irradiation. The size of gas bubbles increased with increasing annealing time and temperature and finally reached stable values at a given annealing temperature. According to the relationship between the bubble radii and annealing time, an empirical formula for calculating the bubble radii at the annealing temperature ranged from 600 to 1400 °C was given by fitting the experiment data. Planar bubble clusters (discs) were found to form on (0001) crystal plane at both sides of the bubble layer when the annealing temperature was at the range of 800–1200 °C. The mechanism of bubble growth during post-implantation annealing and the formation of bubble discs were also analyzed and discussed.
Announcing the 2017 Medicines Travel Award for PostDocs
Authors: Litscher Gerhard
Published: January 2017

For the Medicines Travel Award 2017, we received in total 72 applications from all over the world, most of which were of a very high quality.[...]
Microfluidic Cell Cycle Analysis of Spread Cells by DAPI Staining
Authors: Sun Jing , Zhang Jiayu , Yang Haibo , Wang Gongzhuo , Li Yanzhao , Zhang Xuxin , Chen Qidan , Lang Ming-Fei
Published: January 2017

Single-cell cell cycle analysis is an emerging technique that requires detailed exploration of the image analysis process. In this study, we established a microfluidic single-cell cell cycle analysis method that can analyze cells in small numbers and in situ on a microfluidic chip. In addition, factors that influenced the analysis were carefully investigated. U87 or HeLa cells were seeded and attached to microfluidic channels before measurement. Cell nucleic DNA was imaged by 4′-6-diamidino-2-phenylindole (DAPI) staining under a fluorescent microscope and subsequently fluorescent intensities of the cell nuclei DNA were converted to depict histograms for cell cycle phases. DAPI concentration, microscopic magnification, exposure time and cell number were examined for optimal cell cycle analysis conditions. The results showed that as few as a few hundred cells could be measured by DAPI staining in the range of 0.4–0.6 μg/mL to depict histograms with typical cell cycle phase distribution. Microscopic magnification during image acquisition, however, could distort the phase distribution. Exposure time did not significantly affect the cell cycle analysis. Furthermore, cell cycle inhibitor rapamycin treatment changed the cell cycle phase distribution as expected. In conclusion, a method for microfluidic single-cell cell cycle analysis of spread cells in situ was developed. Factors such as dye concentration and microscopic magnification had more influence on cell cycle phase distribution. Further studies will focus on detail differentiation of cell cycle phases and the application of such a method for biological meanings.
Comparison of Aquitaine and Rioja Red Wines: Characterization of Their Phenolic Composition and Evolution from 2000 to 2013
Authors: Quaglieri Cindy , Prieto-Perea Noelia , Berrueta Luis , Gallo Blanca , Rasines-Perea Zurine , Jourdes Michael , Teissedre Pierre-Louis
Published: January 2017

Wine chemical analysis was carried out on 194 commercial blended red wines produced by two major wine-growing areas—the Aquitaine (France) and Rioja (Spain) regions—in order to compare the wines of both regions. Anthocyanins and derived pigments, tannins and derivatives were identified and quantified by HPLC-DAD-ESI-MS/MS (high pressure liquid chromatography coupled to diode array detector and mass spectrometry using the electrospray ionization interface). Mean degree of polymerization (mDP) was determined. The influence of the wine-growing region and the predominance of the properties of some grape varieties used are confirmed by the significant differences observed between both regions. Rioja and Bordeaux “generic” (Bordeaux and Bordeaux-Supérieur appellations) red wines showed the highest anthocyanic content and the highest mDP, as these wines are in a majority made from Merlot (Bordeaux “generic”) and Tempranillo (Rioja). On the contrary, Bordeaux “specific” regions (Blayais, Médoc, Graves, and Libournais) showed the red wines with the highest total phenolic content and tannin concentration, as the predominant grape variety used is Cabernet Sauvignon. A principal component analysis (PCA) and a hierarchical ascendant classification (HAC) suggesting patterns between the chemical parameters and the distribution of the red wines in three groups were proposed. The comparison of the two wine-growing areas also reveals some similarities between the various grape varieties used. A general effect of a progressive decrease in anthocyanins, anthocyanin-derived pigment and tannins is observed for older wines.
One-Step Reduction and Surface Modification of Graphene Oxide by 3-Hydroxy-2-Naphthoic Acid Hydrazide and Its Polypropylene Nanocomposites
Authors: Xu Xiang-Nan , Guan Xiao-Na , Zhou Hui-Hua , Zhu Yue-Feng
Published: January 2017

3-Hydroxy-2-naphthoic acid hydrazide (HNH), a new reductant and modifier, was applied to reduce and modify graphene oxide (GO) in a one-step process. The obtained HNH reduced graphene oxide (HNH-rGO) was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Raman spectroscopy, X-ray photoelectron spectroscopic (XPS) and Fourier transform infrared spectra (FTIR). The results demonstrated that GO was successfully reduced to graphene and the surface of HNH-rGO was grafted with HNH. The interlayer space was increased from 0.751 nm to 1.921 nm, and its agglomeration was much more attenuated compared with GO. HNH-rGO/polypropylene and graphene/polypropylene composites were synthesized through melt-blending method. The viscosity was enhanced with increased addition of graphene and surface modified graphene demonstrated stronger rheological behavior improving effect than the untreated graphene.
An Efficient Location Verification Scheme for Static Wireless Sensor Networks
Authors: Kim In-hwan , Kim Bo-sung , Song JooSeok
Published: January 2017

In wireless sensor networks (WSNs), the accuracy of location information is vital to support many interesting applications. Unfortunately, sensors have difficulty in estimating their location when malicious sensors attack the location estimation process. Even though secure localization schemes have been proposed to protect location estimation process from attacks, they are not enough to eliminate the wrong location estimations in some situations. The location verification can be the solution to the situations or be the second-line defense. The problem of most of the location verifications is the explicit involvement of many sensors in the verification process and requirements, such as special hardware, a dedicated verifier and the trusted third party, which causes more communication and computation overhead. In this paper, we propose an efficient location verification scheme for static WSN called mutually-shared region-based location verification (MSRLV), which reduces those overheads by utilizing the implicit involvement of sensors and eliminating several requirements. In order to achieve this, we use the mutually-shared region between location claimant and verifier for the location verification. The analysis shows that MSRLV reduces communication overhead by 77% and computation overhead by 92% on average, when compared with the other location verification schemes, in a single sensor verification. In addition, simulation results for the verification of the whole network show that MSRLV can detect the malicious sensors by over 90% when sensors in the network have five or more neighbors.
Demand Forecasting for Heavy-Duty Diesel Engines Considering Emission Regulations
Authors: Kim Yoon , Han Eun , Sohn So
Published: January 2017

Makers of heavy-duty diesel engines (HDDEs) need to reduce their inventory of old-generation products in preparation for the demand for next-generation products that satisfy new emission regulations. In this paper, a new demand forecasting model is proposed to reflect special conditions raised by the technological generational shift owing to new emission regulation enforcement. In addition, sensitivity analyses are conducted to better accommodate uncertainty involved at the time of prediction. Our proposed model can help support manufacturers’ production and sales management for a series of products in response to new emission regulations.
Quark Deconfinement in Rotating Neutron Stars
Authors: Mellinger Richard , Weber Fridolin , Spinella William , Contrera Gustavo , Orsaria Milva
Published: January 2017

In this paper, we use a three flavor non-local Nambu–Jona-Lasinio (NJL) model, an improved effective model of Quantum Chromodynamics (QCD) at low energies, to investigate the existence of deconfined quarks in the cores of neutron stars. Particular emphasis is put on the possible existence of quark matter in the cores of rotating neutron stars (pulsars). In contrast to non-rotating neutron stars, whose particle compositions do not change with time (are frozen in), the type and structure of the matter in the cores of rotating neutron stars depends on the spin frequencies of these stars, which opens up a possible new window on the nature of matter deep in the cores of neutron stars. Our study shows that, depending on mass and rotational frequency, up to around 8% of the mass of a massive neutron star may be in the mixed quark-hadron phase, if the phase transition is treated as a Gibbs transition. We also find that the gravitational mass at which quark deconfinement occurs in rotating neutron stars varies quadratically with spin frequency, which can be fitted by a simple formula.
Action de la lumière sur la germination des akènes de céleri (Apium graveolens L.)
Authors: Jay Maurice
Published: January 2017

Après avoir vérifié que les semences de Céleri exigent la lumière pour germer à 19,5°C, nous avons montré que leur germination est fortement stimulée par la lumière rouge-clair dont l'effet peut être inhibé par les radiations rouge-sombre. Nous avons également observé un phénomène de photo-réversibilité répétée : dans le cas d'une alternance rouge-clair, rouge-sombre, le pourcentage de germination dépend de la nature de la dernière irradiation.
Architecture de la paroi sporique des Volvariacées (Basidiomycètes - Agaricales) en microscopie photonique et électronique
Authors: Capellano André , Kühner Robert
Published: January 2017

22 espèces de ces Agaricales rhodosporées ont été étudiées (2 Volvariella et 20 Pluteus). Le périsporium est très mince et facilement fugace ; le sclérosporium est épais ; l'endosporium, constamment présent dans la spore mûre, est formé de une à trois couches dont le comportement au niveau de l'apicule est précisé.
Dryobotodes carbonis Wagner, bona species, espèce nouvelle en Europe et en France (Lep. Noctuidae Cucullinae)
Authors: Dufay Claude
Published: January 2017

Dryobotodes carbonis Wagner (1931), décrit comme une sous-espèce anatolienne de D. cerris Bsd, est reconnue comme une bonne espèce, bien distincte de D. cerris, de Provence. Elle est restée confondue jusqu'à présent avec D. cerris dans le sud-est de l'Europe, puisque son aire de dispersion s'étend du Taurus oriental à l'est, jusqu'à la vallée du Var à l'ouest ; elle existe en France, en Corse et dans les Alpes-Maritimes.
Puces de mammifères dans les nids d'oiseaux pendant la mauvaise saison
Authors: Roman Émile , Pichot J.
Published: January 2017

Diverses puces, parasitant normalement des Rongeurs et des Insectivores, ont été assez souvent rencontrées dans des nids de divers Oiseaux ; elles ont dû le plus souvent y pénétrer pendant la belle saison. Elles peuvent, au cours de journées douces d'hiver, y sucer le sang de Mammifères venus y prendre du repos, ce qui est sûrement le cas d'Apodemus sylvaticus (s. lat.), et vraisemblablement aussi piquer, au printemps suivant, ceux qu'attirent les couvées établies dans certains de ces berceaux anciennement construits.
Une excursion entomologique à l'île de Quelpart (Cheju-do) et découverte d'une espèce nouvelle pour la Corée de Chrysolina Motschulky (Col. Chrysomelidae) . Réflexions sur la plantagophagie. (Suite et fin)
Authors: Jolivet Pierre
Published: January 2017

Chrysolina staphylea, new species for Korea, living in the alpine region of Mont Halla, Quelpart island, South Korea, has been found inside and around the crater of the mountain. The host-plant is still unknown but in low altitudes the Plantago are perfectly accepted. The species seem to belong to a boreo-alpine group which has migrated possibly early pleistocene when there was a bridge linking the peninsula and Quelpart and when the temperature was low due to glaciations.

It is possible that similar or same species exist in other alpine zones in South Korea, such as Mont Giri (Chiri), Kyongsang Namdo, but probably not in North Korea which has been rather well prospected by the Japanese entomologists. C. staphylea has a wide holarctic distribution, including eastern Canada but the C. angusticollis complex, other cold dwelling group, is localized theoretically only in oriental Siberia, Hokkaido and Mandchuria. Ecology, habits and parasites of Chrysolina staphylea, as well as feeding preferences of the genus, are discussed thoroughly.
Contribution à l'étude des Blattaria de la Faune malgache. III. Genre Heminauphoeta Saussure et description de trois espèces nouvelles de Brachynauphoeta gen. nov
Authors: Van Herrewege Christian
Published: January 2017

Brachynauphoeta, a new genus in the Oxyhaloidae familly (sensu Princis) was established for the brachypterous species which had been previously included in Heminauphoeta Saussure. Heminauphoeta includes two species (H. sakalava and H. picea). Brachynauphoeta includes the older species (hova, brunneriana and mayottensis ) in addition with three herewith described new ones : jeannineae, michelleae and foulpointeensis.

Lectotypes were selected for H. sakalava and B. hova (Saussure et Zehntner). The habitus of the different species was figured in the two genera so as the wing pattern of Brachynauphoeta, and the sub-genital plates, when known. The male genitalia were figured in five species in both genera. The shape and morphology of the R2 sclerite could have a phylogenetical interest whereas the tentatively introduction of the ratio between the lenght of L2vm and R2 shown an unexpected difference between the two genera. This is the first report in the Blattaria of the possible interest of the male genitalia at the generic rank.
Notes sur le genre Monoedus Horn (Coléoptères, Colydiidae) et description d'espèces nouvelles
Authors: Dajoz Roger
Published: January 2017

Etude morphologique du genre Monoedus Horn (= Adimerus Sharp) qui constitue une tribu de Colydiidae : tribu Monoedini nov. Cinq espèces nouvelles sont décrites : M. crowsoni, M. hirtus, M. cubanensis, M. grouvellei et M. boliviensis. Un tableau de détermination et le catalogue des 12 espèces connues sont donnés d'après l'étude des types. Les Monoedus sont localisés à la région néotropicale et au sud des Etats-Unis.
Un leptodactyle pentadactyle ectrodactyle (Amphibiens, Anoures)
Authors: Dubois Alain , Fischer Jean-Louis
Published: January 2017

Un mâle et une femelle de Leptodactyles, Leptodactylus pentadactylus labyrinthicus (Spix), provenant du Brésil et captifs depuis 1967, se sont accouplés et ont pondu à trois reprises de juin à septembre 1973. Parmi 121 jeunes Leptodactyles provenant de la première ponte, se trouvait un exemplaire atteint d'ectrodactylie postérieure bilatérale symétrique (4 orteils par patte). Après une revue sommaire des types de causes pouvant provoquer l'ectrodactylie chez les Amphibiens, quelques hypothèses sont proposées pour tenter de rendre compte de ce cas unique d'ectrodactylie, première anomalie signalée, à notre connaissance, chez un Leptodactylidé.
Les Drosophilidae (Diptera) de l'Ile de la Réunion et de l'Ile Maurice. I. Deux nouvelles espèces du genre Drosophila
Authors: David Jean , Tsacas Léonidas
Published: January 2017

Description of two new endemic species from La Réunion. D. (Sophophora) ercepeae is included in the ananassae subgroup. D. (Drosophila) ponera cannot be included into any species group.
Présence de Trientalis europaea L., dans la partie méridionale de la chaîne du Jura
Authors: Berthet Paul , Dutartre Gilles
Published: January 2017

Description d'une nouvelle localité, étendant vers le sud-ouest l'aire actuellement connue de cette plante arctico-alpine.
Ultrastructure de la paroi sporique de Coprinus congregatus Bull. ex Fr. et ses variations liées à la symétrie bilatérale de la spore
Authors: Hugueney R.
Published: January 2017

La paroi dorsale de la spore de Coprinus congregatus Bull, ex Fr. possède une ultrastructure différente de celle de la paroi ventrale. Des variations s'observent au niveau de la périspore (plus épaisse sur la face ventrale) et de l'épispore (différenciation d'un feuillet transparent aux électrons dans le sclérosporium). Discussion.
Onthophagus massai, nouvelle espèce paléarctique (Coleoptera Scaraboidea)
Authors: Baraud Jacques
Published: January 2017

Description de Onthophagus massai, nouvelle espèce qui paraît localisée aux régions montagneuses de la Sicile ; sa position systématique est discutée et les caractères taxonomiques qui permettent de la séparer des deux espèces voisines, O. similis Scriba et O. fracticornis Preyssler, sont précisés.
Un Braconide, Chrysopophthorus chrysopimaginis Goidanich (Hymenoptera , Braconidae ) parasite des imagos de Chrysopinae (Planipennia , Chrysopidae)
Authors: Séméria Yves
Published: January 2017

En Europe, peu de travaux, semble-t-il, ont été consacrés aux parasites des formes imaginales de Chrysopides. Les études les plus importantes restent celles de M. M. Principi. Assez curieusement, si les œufs, les larves et les nymphes se trouvent fréquemment parasités, l'adulte dans l'état actuel des observations, n'est l'hôte que du seul Chrysopophthorus chrysopimaginis Goid. Dans le substantiel chapitre qu'y consacre Principi (1), sont passés en revue ses différents états larvaires. Nous donnerons ici, une rapide description de l'adulte, puis nous rapporterons les cas de parasitose relevés dans diverses populations de Chrysopinae, du printemps à l'automne, et les conséquences sur leur état physiologique et leur mortalité. Enfin, nous conclurons par quelques considérations sur la structure du cocon et la nymphose du Braconide parasite.
Diagnoses de nouveaux genres et de plusieurs espèces inédites de Noctuidae Trifinae (Lépidoptères) d'Ethiopie (3e note)
Authors: Laporte Bernard
Published: January 2017

Lors de sa nouvelle mission dans les montagnes du S.E. éthiopien et dans le T.F.A.I., M. P.-C. Rougeot a capturé de nombreux Noctuides Trifides, en cours d'étude ; l'auteur fournit ci-dessous la description de 3 nouveaux genres et de 11 espèces inédites provenant du haut massif du Batu, dont les Types sont déposés au Laboratoire d'Entomologie du Muséum national d'Histoire naturelle.
Les Coléoptères Murmiidae et Euxestidae de la faune paléarctique. Morphologie, biologie, systématique
Authors: Dajoz Roger
Published: January 2017

L'auteur résume les principaux caractères morphologiques, imaginaux et larvaires, qui permettent de définir deux familles de Coléoptères : les Euxestidae et les Murmidiidae. La composition de ces deux familles est indiquée, ainsi que la systématique, la biologie et la répartition géographique des espèces de la faune paléarctique.
Nouvelles noctuelles de Madagascar [Lep. Noctuidae]
Authors: Viette Pierre
Published: January 2017

Douze espèces et une sous-espèce nouvelles sont décrites. Les types en sont conservés dans les collections du Muséum national d'Histoire naturelle, à Paris.
Les Chironidae (Col. Scarab.) de Madagascar
Authors: Paulian Renaud
Published: January 2017

L'étude des Chironidae malgaches permet de reconnaître une espèce nouvelle pour la Science. Clef des deux espèces malgaches.
Effet de l'hydratation et de l'obscurité prolongée sur les épidermes foliaires détachés. Variations du potentiel osmotique et de l'amidon dans les cellules stomatiques
Authors: Mouravieff Igor
Published: January 2017

On a examiné le comportement des épidermes foliaires détachés de quatre espèces, placées sur l'eau à l'obscurité pour une durée allant jusqu'au stade pre-mortem.

Les épidermes des deux espèces hydrophiles ont bien supporté le contact prolongé avec l'eau. Le potentiel osmotique et l'adhérence protoplasme-membrane n'ont pas sensiblement varié aux termes des essais et même se sont renforcés. Par contre, les espèces terrestres ont accusé une diminution de ces caractères plasmiques. La teneur en amidon diminue graduellement dans les stomates et peut même disparaître entièrement. Une nouvelle synthèse de l'amidon à partir de métabolites intermédiaires est fortement réduite après un séjour prolongé sur l'eau, ce qui reflète une altération des mécanismes responsables. L'auteur discute ces résultats à la lumière des idées récentes sur l'état de l'eau dans le protoplasme.
Variations journalières et hebdomadaires des champignons filamenteux et arthrospores dans les laissées d'un Grand Panda femelle
Authors: Saëz Henri
Published: January 2017

Les champignons filamenteux, les Geotrichum et les Trichosporon ont été recherchés journellement, puis hebdomadairement dans les laissées d'un Grand Panda femelle depuis son arrivée au Parc Zoologique de Paris. Les variations des Mucor, des Aspergillus et des Pénicillium, micromycètes le plus communément isolés, épousent celles de la flore alimentaire. Un Trichosporon cutaneum thermotolérant et produisant de multiples endospores s'est adapté au tube digestif vers la 7e semaine et a contribué à la flore fongique de l'hôte pendant au moins trois semaines.
Observations récentes sur quelques puces de nids d'oiseaux. Présence à Lyon de Ceratophyllus columbae (insectes Siphonaptères)
Authors: Roman Émile , Pichot J.
Published: January 2017

Sont rassemblés ici des observations sur certains comportements de Siphonaptères ; les plus intéressantes sont les suivantes.

Il a été constaté qu'un nid d'oiseau (sitelle), occupant une cavité de branche d'arbre à ouverture étroite, peut être envahi en mauvaise saison par Monopsyllus sciurorum.

A partir de larves provenant d'un nid de pigeon, trouvé à Lyon, il a pu être effectué un élevage de Ceratophyllus columbae à l'obscurité et en atmosphère, à certains moments, très humide.
Remarques systématiques et biogéographiques sur quelques Diptères Tabanidae de France et de localités suisses voisines
Authors: Roman Émile , Pichot J.
Published: January 2017

Ce mémoire comprend principalement une étude critique de Tabanidae, beaucoup déjà mentionnés antérieurement, appartenant à des groupes difficiles (Hybomitra et Haematopota surtout). Y sont inclus certains renseignements biogéographiques ; quelques autres de même ordre sont rapportés indépendamment. Ont été pour la première fois signalés des territoires ci-après nommés : Tabanus rectus de Corse, T. miki de l'Hérault, Haematopota scutellata des Alpes de Haute-Provence ; H. gallica (sensu Chvala) est, dans les mêmes conditions indiqué du Gard ainsi que des environs de Lyon, où, non encore cité, a été trouvé Hybomitra ciureai ; Nemorius vitripennis et Haematopota ocelligera y ont été recapturés.
Recherches physiologiques sur les champignons. V - Données nouvelles d'ordre analytique concernant les champignons lignivores
Authors: Armand-Fraysse D. , Lebreton Philippe
Published: January 2017

Elargissant les tests classiques des mycologues utilisant des phénols simples comme révélateurs des activités lignivores des Hyménomycètes, les auteurs proposent la rutine (rhamnoglucosyl-3 quercétine) comme substrat complémentaire ; l'ensemble des résultats est traité par analyse factorielle des correspondances.

Une corrélation positive apparaît, d'une part entre la notion de pourriture blanche et la présence de polyphénol-oxydases (dont celles responsables de la destruction de la rutine), d'autre part entre la notion de pourriture rouge et divers types de substitution osidique de la quercétine.
Notes sur les Eumolpides néotropicaux (Coléoptères Phytophaga)
Authors: Bechyně Jan , Springlova de Bechyné B.
Published: January 2017

Les auteurs donnent les références en Amérique du sud de 10 espèces d'Eumolpides néotropicaux, et décrivent cinq nouvelles espèces — 3 Antitypona ; un Ledesmodina et un Xanthopachys — du Brésil ou du Venezuela.
Cognitive Training through mHealth for Individuals with Substance Use Disorder
Authors: Oliveira Jorge , Lopes Paulo , Brito Rodrigo , Morais Diogo , Caçoete Cristina , Leandro André , Almeida Teresa , Oliveira Hugo , Gamito Pedro
Published: January 2017

Background: Heroin addiction has a negative impact on cognitive functions, and even recovering addicts suffer from cognitive impairment. Recent approaches to cognitive intervention have been taking advantage of what new technologies have to offer.

Objectives: We report a study testing the efficacy of a serious games approach using tablets to stimulate and rehabilitate cognitive functions in recovering addicts.

Methods: A small-scale cognitive training program with serious games was run with a sample of 14 male heroin addicts undergoing a rehabilitation program.

Results: We found consistent improvements in cognitive functioning between baseline and follow-up assessments for frontal lobe functions, verbal memory and sustained attention, as well as in some aspects of cognitive flexibility, decision-making and in depression levels. More than two thirds of patients in cognitive training had positive outcomes related to indicators of verbal memory cognitive flexibility, which contrasts to patients not in training, in which only one patient improved between baseline and follow-up.

Conclusions: The results are promising but still require randomized control trials to determine the efficiency of this approach to cognitive rehabilitation programs for the cognitive recovery of heroin addicts.
Long Noncoding RNA GAS5 Inhibits Tumorigenesis and Enhances Radiosensitivity by Suppressing miR-135b Expression in Non-Small Cell Lung Cancer
Authors: Xue Yingbo , Ni Tingting , Jiang Ying , Li Yong
Published: January 2017

Growth arrest-specific transcript 5 (GAS5) has been demonstrated to correlate with clinicopathological characteristics and serve as a tumor suppressor in non-small cell lung cancer (NSCLC). However, the underlying mechanism of the competing endogenous RNA (ceRNA) regulatory network
involving GAS5 in NSCLC remains to be elucidated. In this study, qRT-PCR results showed that GAS5 was downregulated and miR-135b was upregulated in NSCLC tissues and cells. The expressions of GAS5 and miR-135b changed inversely in response to irradiation. Gain-of-function experiments revealed
that GAS5 overexpression and miR-135b downregulation significantly suppressed tumorigenesis by repressing cell proliferation and invasion, and enhanced the radiosensitivity of NSCLC cells by reducing colony formation rates. Luciferase reporter assay confirmed that GAS5 could directly target
miR-135b and negatively regulate its expression. Moreover, rescue experiments demonstrated that miR-135b upregulation markedly abolished GAS5 overexpression-induced tumorigenesis inhibition and radiosensitivity improvement. Furthermore, xenograft model analysis validated that GAS5 overexpression
suppressed tumor growth and improved radiosensitivity of NSCLC cells in vivo. Taken together, GAS5 inhibits tumorigenesis and enhances radiosensitivity by suppressing miR-135b expression in NSCLC cells, deepening our understanding of the mechanism of miRNA‐lncRNA interaction and providing
a novel therapeutic strategy for NSCLC.
Assistance Network and Morbi-Mortality Pattern Of Hypertension in a Metropolitan area Of Northeast Brazil
Authors: Bezerra da Silva Junior Geraldo , De Sousa Araújo Santos Zélia Maria , Veras Morais Brilhante Aline , De Oliveira Branco July Grassiely , Magalhães da Silva Raimunda
Published: January 2017

The aim of this study is to know the assistance network and the morbimortality pattern of hypertension in a metropolitan area. A search was performed in the government platforms to determine the assistance network for patients with hypertension in the city of Fortaleza, Northeast Brazil. We have reviewed the database in the period from 2010 to 2014 to investigate the hospital admissions and deaths due to hypertension and its related diseases. 23,709 patients are registered with diagnosis of hypertension. Primary care is given in 92 health centers, and the specialized care is provided in 112 units. Tertiary attention is given in 4 reference hospitals. Hypertension was the main cause of death in 67 patients admitted in that period, and cardiovascular diseases were responsible for 7,955 deaths. The assistance network for hypertension is well structured in this city, but due to the increasing population there is need to expand this network
Nursing Students' First Placement: Peripherality and Marginality Within the Community of Practice
Authors: Molesworth Mark
Published: January 2017

Background:

A nursing student's first placement is a significant and influential experience that can be a factor in attrition from nursing education programs.

Method:

The first placement experiences of 17 nursing students at a Scottish university were collected through semistructured individual interviews or focus groups. The resultant transcripts were analyzed from the perspective of communities of practice using deductive content analysis.

Results:

Students' peripheral position within the communities of practice they encounter on placement can support learning. However, it can also leave them at risk of marginalization, which may have a detrimental effect on their emerging identity as nursing students. The central roles of mentors and liaison lecturers in supporting student participation within the community of practice are apparent.

Conclusion:

Student experiences of peripherality and marginality highlight opportunities for practice settings and universities to better prepare and support students during their first placement. [
J Nurs Educ.
2017;56(1):31–38.]
Música en Piedra: La familia Muntadas y la música, músicos y cantantes en los álbumes de firmas del Monasterio de Piedra entre 1861 y 1912
Authors: Bosqued Lacambra Pilar
Published: January 2017

En 1861 J. Federico Muntadas Jornet comenzó un álbum donde recogió las firmas de los amigos, familiares y personalidades que pasaron por el Monasterio de Piedra, donde falleció en 1912. En este artículo, se dan a conocer algunos autógrafos, fechas e impresiones, de compositores, músicos y cantantes que estuvieron en Piedra entre 1861 y 1912, acompañados por comentarios al respecto.
La música en la Bauhaus (1919-1933): Gertrud Grunow como profesora de armonía. La fusión del arte, el color y el sonido
Authors: Vadillo Rodríguez Marisa
Published: January 2017

En pocas ocasiones se ha impartido en una escuela de arte unas teorías tan originales y completas como las que impartió la música Gertrud Grunow (1870-1944) en su asignatura de Teoría de la Armonía para la célebre Bauhaus alemana, entre 1919 y 1923. Había estudiado con maestros como Hans Guido von Bülow (1830- 1894), Scharwenka (1850-1924) o Giovanni Battista Lamperti (1839-1910) y llegó a la escuela siendo una autora de un reconocido prestigio intelectual. El objetivo de su asignatura en la Bauhaus era la búsqueda de un equilibrio y el análisis por parte del alumnado de sus propias habilidades artísticas a través de la música. Basándose en fenómenos como la sinestesia, consideraba que a cada color le correspondía no sólo una nota musical sino que también estaba en relación con un sentimiento, movimiento, material y estado del alma humana.
A comparison of modified free‐space (MFS), GPR, and TDR techniques for permittivity characterisation of unbound granular pavement materials
Authors: Muller Wayne B. , Bhuyan Habibullah , Scheuermann Alexander
Published: January 2017

This paper reports on a laboratory experiment comparing permittivity measurements using a modified free‐space approach to results using common‐offset ground‐penetrating radar and time‐domain reflectometry on moist and compacted samples of unbound granular road pavement materials. In the first part of the experiment, unbound granular samples from the same source were prepared to varying moisture contents and a fixed target density. Separate samples were prepared for modified free‐space and time‐domain reflectometry testing, all of which were also measured using ground‐penetrating radar. In the second part of the experiment, samples were mixed to a consistent gravimetric moisture content and varying densities before undertaking the modified free‐space, time‐domain reflectometry, and ground‐penetrating radar measurements. Reasonably good agreement was found between modified free‐space and ground‐penetrating radar measurements, which also compared well with literature relations for crushed rock pavement materials. The time‐domain reflectometry results were relatively consistent with those literature relations, although they appeared to deviate from the ground‐penetrating radar and trend of modified free‐space results for lower density and drier samples.
Using machine learning algorithms to link volumetric water content to complex dielectric permittivity in a wide (33–2000 MHz) frequency band for hydraulic concretes
Authors: Ihamouten Amine , Le Bastard Cédric , Xavier Dérobert , Bosc Frederic , Villain Géraldine
Published: January 2017

This paper focuses on the development and validation of an innovative method for estimating volumetric water content in concrete mixtures. A supervised learning method (support vector machine) has been used to resolve the inverse problem, i.e., generate in‐laboratory calibration curves correlating the controlled water content in various concrete mixtures with the frequency‐dependent complex dielectric permittivity originating from the coaxial electromagnetic transition line. An extrapolation procedure using a frequency‐power‐law model has been developed and validated for estimating the complex permittivity over a broad frequency bandwidth. Implementation of this extrapolation method allows considering various physical phenomena (i.e., polarisation versus water content) that typically affect the dielectric behaviour of concrete as a function of frequency. The two‐step estimation procedure (involving extrapolation and support vector regression methods) proposed in this paper has been validated on a wide array of moisture‐controlled concrete specimens in the laboratory. The procedure helps building calibration curves that rely on both complex effective permittivity and volumetric water content, taking into consideration the frequency dependence.
An Analytical Framework for the Study of Solid Body Cooling
Authors: Kopal Ivan , Koštial Pavel , Jančíková Zora , Valíček Jan , Harničárová Marta
Published: January 2017

This paper aims to study the cooling of a solid body. An analytical analysis of a solid body cooling in different regimes is presented, such as a simple first order exponential model, a modified exponential model, a generalized exponential model and the so-called regular temperature regime. The analysis also includes the influence of the dynamically changing relaxation time and we also present the solution of the nonlinear heat equation.
Sliding Mode Control of a Water-Displacement Based Mechanism Applied to the Orientation of a Parabolic-Trough Solar Concentrator
Authors: Flores-Campos Juan Alejandro , Perrusquía Guzmán J.A. , Beltrán-Fernández Juan Alfonso , Hernández-Gómez Luis Héctor
Published: January 2017

In this paper the problem of guiding a parabolic trough solar concentrator through a system based on a water displacement mechanism is addressed. The actuator mechanism consists of a set of four on/off electrovalves in ”H-bridge” configuration, a small water pump, a sun sensor and two containers half-filled with water, installed on the side ends of the concentrator. To guide and balance the concentrator, a sliding mode controller (SMC) to enable / disable the opening and closing of the valves that control the direction and flow of water between the two containers is proposed. The validity of the implementation of the proposed law of control applied to the actuator mechanism is verified with stability analysis and simulation results.
Neutral Molten Salt-Bath Carburizing of Ti6Al4V Alloy with Nanocrystalline Surface Layer at Low Temperature Assisted by Surface Mechanical Attrition Treatment
Authors: Yao Quan Tong , Tong Wei Ping , Li Meng Yao , Zhang Guang Lan
Published: January 2017

Nanocrystalline surface layer about 10~15μm thick was fabricated on the surface of Ti6Al4V sheet by means of the surface mechanical attrition treatment (SMAT). The average grain size was about 10nm and the grain characteristic presented equiaxed morphology. The nanocrystalline surface layer could be perfectly maintained below 550°C in the following thermal stability analysis. Neutral salt mixture was about 21% NaCl, 31% BaCl2 and 48% CaCl2 and additionally 5% Na2CO3 of total was utilized. After carburizing process, a continuous charcoal grey carburized layer was composed of TiC and carbon supersaturated solid solution, the hardening layer was about 10~15μm thick. The hardness of the outermost surface reached 1000HV, which was much higher than its coarse-grained counterpart in the same carburizing condition. The experimental result indicated that the carburizing kinetics was obviously enhanced by nanocrystalline surface layer assistance. Furthermore, the neutral molten salt-bath carburizing was verified that it could be performed in a relatively low temperature of 650°C.
Preparation and Composition Optimization of Low-CO2-Emission Cement Containing Belite, Calcium Sulfoaluminate and Ferrite
Authors: Yao Wu , Ling Qiao , Wu Meng Xue
Published: January 2017

Cement clinker with low CO2 emission was prepared in laboratory, which mainly consist of belite (C2S), calcium sulfoaluminate (C4A3S), and ferrite (C4AF). The mineral composition of clinker was optimized for better compressive strength development. The chemical and physical properties of this prepared cement were characterized through X-ray diffraction (XRD), back scattered electron-scanning electron microscopy (BSE-SEM) and differential thermal analysis (DTA). The results reveal that C4A3S governs most of the compressive strength at early ages, while C2S contributes to the later strength development. C4AF is in liquid when fired to 1300°C, beneficial to the mass transfer but causing high crystallinity of C2S when excessive. Finally the results of experiments suggest that the optimal composition of clinker is 50wt. % C2S, 40wt. % C4A3S and 10wt. % C4AF.
Improved Mechanical Properties of AZ31 Alloy Fabricated by Multi-Directional Forging
Authors: Chen Cai , Wang Rui , Du Xing Hao , Wu Bao Lin
Published: January 2017

In this work, the tensile properties of AZ31 Mg alloy deformed by multi-directional forging (MDF) were investigated at room temperature. And the enhanced mechanical properties of yield strength of 93 MPa, ultimate tensile strength (UTS) of 253 MPa and elongation of 29% were achieved. It is discovered that the MDF deformation makes the crystallographic orientation of original as-cast microstructure randomization, providing the condition for the following twinning during tensile deformation. In addition, the original fine grains and continuously refined grains can enhance the strength by restricting the growth of grains and motion of dislocations.
Modeling the Hot Deformation Behavior of Ti-50.8%Ni Shape Memory Alloy
Authors: Yin Xiang Qian , Peng Li Jun , Feng Xue , Li Yan Feng , Xie Hao Feng , Mi Xu Jun , Yeom Jong Taek
Published: January 2017

The characteristics of isothermal deformation behavior of Ti-50.8%Ni shape memory alloys were investigated by thermal simulation tests, which were performed on Gleeble-3500 thermal simulation machine. The range of deformation temperatures was 800°C to 1050°C and that of strain rates was 0.01s-1 to 10s-1. The stress-true strain curves were corrected by considering deformation-heating and friction. The results show that the flow stress increases with the decrease of deformation temperatures or the increase of strain rates. The constitutive relationship of hot deformation was established on the basis of the Arrhenius equation and the average activation energy of 182 KJ/mol was obtained.
Simulation of the Effect of Second Phase Particles in Different Shapes on Grain Growth of Mg Alloy by Phase Field Methods
Authors: Wu Yan , Xia Si
Published: January 2017

The effect of second phase particles in different shapes on grain growth of AZ31 Mg alloy has been simulated by the phase field methods under realistic spatial-temporal scales. The long-range orientation field variables are chosen to express the temporal microstructure evolution and crystal orientation. The expression of the local free energy density equation was modified by adding the expression term of second phase particles, and the simulated results show that the grain boundary migration is pinned by the second phase particles during the grain growth, which is agree with the Zener pinning observation. When the shape of particles is different and the volume fraction is 10%, the effect of refining grain is different too, the oval particles are the strongest, followed by the rod particles, and the effect of spherical particles are weaker. The research will help to understand the mechanisms of grain growth containing the second phase particles strengthening.
Effect of Heat Treatment on the Microstructure of Cu-Cr-Zr Alloy
Authors: Peng Li Jun , Xie Hao Feng , Xu Gao Lei , Huang Guo Jie , Yang Zhen
Published: January 2017

Effect of Heat treatments on microstructure in a Cu-0.71Cr-0.12Zr alloy (in wt.%) have been investigated. The microstructures are analyzed by optical microscope, scanning electron microscope, transmission electron microscope and high-resolution transmission electron microscope after each step of heat treatments. The results show that the as-cast microstructure of Cu-Cr-Zr alloy is Cu matrix, Cr dendrite and eutectic structure which is composed of Cu and Cu5Zr phase with a fine lamellar structure. By increasing the homogenization temperature or prolonging the holding time, the eutectic structure is dissolved into the matrix gradually and the volume fraction of the Cr phases is obviously reduced. The precipitation of Cr phase prevents from Zr-rich phases dissolving in the matrix. And the proper homogenizing process is 900°C×12 h. When the alloy aged at 450°C for 24 h, the crystallography of Cr precipitates and the orientation relationship between Cr precipitates and Cu matrix is bcc structure and KS-OR, respectively. The disk-shaped precipitate is identified as Cu5Zr phase and their habit plane is parallel to {111}Cu plane.