bluuebunny/crossref_metadata_2025 huggingface dataset:
ORGANIZING RETURN MIGRANT WORKERS FROM INDONESIA FOR SUSTAINABLE GOVERNANCE
Authors: Meiliyana Meiliyana
Published: January 2020

Artikel ini akan menyajikan pemahaman tentang bagaiamana purna buruh migrant dapat memberikan dampak bagi keluarga dan masyarakat di sekelilingnya dalam hal peningkatan kualitas hidup dan kesejahteraan. Latar belakang utama dari artikel ini adalah semakin mudah dan banyaknya orang yang memutuskan menjadi pekerja migran di luar negaranya sebagai dampak dari globalisasi. Selanjutnya artikel ini akan focus pada purnaburuhmigran dan akan mencoba memberikan penjelasan pentingnya penelitian lebih lanjut tentang bagaimana para purna buruh migrant tersebut dapat berkontribusi untuk pembangunan yang berkelanjutan. Dalam artikel ini disajikan beberapa hasil penelitian tentang hubungan remitan, pembangunan dan buruh migran di dua negara Asia Tenggara yang merupakan negara pengirim buruh migrant terbesar di asiaTenggara. This article presents an understanding of how returnees of overseas workers have an impact on family and community in term of prosperity and wellbeing. The main background of thisarticle is the growing trend of migration as one impact of globalization. Furthermore this article focuses on overseas workers and will seek to address the lack attention of current research on demonstrating how returnees overseas workers could contribute to sustainable development. At the end of the article it suggests to do further research in order to find answers about the impacts of having experiences as overseas workers for family and community prosperity and well being. In this article is discussed two regions in Southeast Asia namely Indonesia and Philippine where in these two countries playing significant role as sending countries for overseas workers.
Functionalization of nZVI nanoparticles with dipicolinic acid by one-pot synthesis ­and testing of PDCA-nZVI material properties in cadmium removal from water
Authors: Roncevic Sanda , Nemet Ivan , Zagorec Viktor , Selmani Atiđa
Published: January 2020

The low-cost method of functionalization of zero-valent iron nanoparticles (nZVI) by dipicolinic acid (PDCA) by one-pot synthesis was studied in this work. The chemical reduction of iron salt with concurrent addition of ligand was performed using different molar ratio of starting reagents. Functionalization of nZVI was confirmed by FT-IR spectroscopy. The formation of oxide layers on the core of iron particles that consists of magnetite and feroxyhyte was confirmed by the XRD method. Morphology of obtained material was examined by SEM study and it revealed the formation of short-chains of spherical particles by use of equimolar ratio of reactants. The appearance of ellipsoidal aggregates was observed by use of reagents molar ratio of 1/2. The performance characteristics of obtained materials were tested in cadmium removal from water solutions. Concentrations of cadmium in solutions were determined by ICP-OES measurements. The efficiency of removal of cadmium was tested on bare nZVI particles, one-pot synthetized PDCA-nZVI particles, and particles obtained by subsequent incubation of PDCA onto nZVI. The results of the measured hydrodynamic diameter and zeta-potential in solutions were correlated with adsorption characteristics of prepared functionalized materials. The most efficient adsorption of cadmium was observed by exploiting PDCA-nZVI nanomaterial that was obtained from one-pot synthesis.
Singular which, mention-some, and variable scope uniqueness
Authors: Hirsch Aron , Schwarz Bernhard
Published: January 2020

Singular wh-questions carry a uniqueness presupposition. Dayal (1996) proposed that uniqueness is triggered by an answer operator (ANS), which occurs highest in the question LF, outside the question nucleus. We observe data which we take to show that uniqueness may be triggered at a low scope site, beneath operators which themselves are within the question nucleus. In response to these “low uniqueness” cases, we remove the uniqueness presupposition from ANS, and suggest re-localizing it to the wh itself, which can reconstruct into the question nucleus to take narrow scope. This paves the way for a weakening of ANS previously suggested in Fox (2013) to accommodate mention-some questions.
NEIGHBORHOOD SELECTION FOR A NEWCOMER VIA A NOVEL BWM-BASED REVISED MAIRCA INTEGRATED MODEL: A CASE FROM THE COQUIMBO-LA SERENA CONURBATION, CHILE
Authors: Hashemkhani Zolfani Sarfaraz , Ecer Fatih , Pamučar Dragan , Raslanas Saulius
Published: January 2020

Nowadays, cities are developing differently according to their needs, limitations and certain strategic plans. Moreover, conurbation areas will be more common in so many countries like Chile when there are two or more cities developing one next to another, leaning on each other. In this atmosphere, typical residents live in a region or a neighborhood based on certain criteria, so they know how and where they are going to live. From another point of view, a newcomer is usually faced with a city full of contrasts which make things completely and surprisingly complicated. In order to illustrate this, a real case was selected based on the research field, qualitative and quantitative (real) data. The Coquimbo-La Serena conurbation and it’s regions as “Comuna (in Chile)” is a really suitable case to show the complexity of the study. In order to face the challenge, a new hybrid Multiple-Attribute Decision-Making (MADM) method is introduced based on the Best-Worst Method (BWM) and Multi-Attributive Ideal-Real Comparative Analysis (MAIRCA). The five best different neighborhoods as Comunas of the conurbation were analyzed based on the two main scenarios: having a private car or using only public transportation. To obtain more reliable results, a sensitivity analysis was made so as to determine the behavior of the proposed model against weight changes. Besides, the final results were compared with the other MADM methods, for example: Multi-Attributive Border Approximation Area Comparison (MABAC), VIsekriterijumsko KOmpromisno Rangiranje (VIKOR) and COmbinative Distance-based ASsessment (CODAS).
XO-7 b: A Transiting Hot Jupiter with a Massive Companion on a Wide Orbit
Authors: Crouzet Nicolas , Healy Brian F. , Hébrard Guillaume , McCullough P. R. , Long Doug , Montañés-Rodríguez Pilar , Ribas Ignasi , Vilardell Francesc , Herrero Enrique , Garcia-Melendo Enrique , Conjat Matthieu , Foote Jerry , Garlitz Joe , Vo Phillip , Santos Nuno C. , Bruijne Jos de , Osborn Hugh P. , Dalal Shweta , Nielsen Louise D.
Published: January 2020

Transiting planets orbiting bright stars are the most favorable targets for follow-up and characterization. We report the discovery of the transiting hot Jupiter XO-7 b and of a second, massive companion on a wide orbit around a circumpolar, bright, and metal-rich G0 dwarf (V = 10.52,

,

). We conducted photometric and radial velocity follow-up with a team of amateur and professional astronomers. XO-7 b has a period of

days, a mass of

, a radius of

, a density of

, and an equilibrium temperature of

. Its large atmospheric scale height and the brightness of the host star make it well suited to atmospheric characterization. The wide-orbit companion is detected as a linear trend in radial velocities with an amplitude of

over two years, yielding a minimum mass of 4

; it could be a planet, a brown dwarf, or a low-mass star. The hot Jupiter orbital parameters and the presence of the wide-orbit companion point toward a high-eccentricity migration for the hot Jupiter. Overall, this system will be valuable to understand the atmospheric properties and migration mechanisms of hot Jupiters and will help constrain the formation and evolution models of gas giant exoplanets.
Uranus in Northern Midspring: Persistent Atmospheric Temperatures and Circulations Inferred from Thermal Imaging
Authors: Roman Michael T. , Fletcher Leigh N. , Orton Glenn S. , Rowe-Gurney Naomi , Irwin Patrick G. J.
Published: January 2020

We present results from mid-infrared imaging of Uranus at wavelengths of 13.0 and 18.7 μm, sensing emission from the stratosphere and upper troposphere, acquired using the VISIR instrument at the Very Large Telescope, 2018 September 4–October 20. Using a combination of inverse and forward modeling, we analyze these northern midspring (L

s
 ∼ 46°) images and compare them to archival data to assess seasonal changes since the 1986 southern solstice and subsequent equinox. We find the data are consistent with little change (<0.3 K) in the upper tropospheric temperature structure, extending the previous conclusions of Orton et al. well past equinox, with only a subtle increase in temperature at the emerging north pole. Additionally, spatial-temporal variations in 13 μm stratospheric emission are investigated for the first time, revealing meridional variation and a hemispheric asymmetry not predicted by models. Finally, we investigate the nature of the stratospheric emission and demonstrate that the observed distribution appears related and potentially coupled to the underlying tropospheric emission six scale heights below. The observations are consistent with either midlatitude heating or an enhanced abundance of acetylene. Considering potential mechanisms and additional observations, we favor a model of acetylene enrichment at midlatitudes resulting from an extension of the upper tropospheric circulation, which appears capable of transporting methane from the troposphere, through the cold trap, and into the stratosphere for subsequent photolysis to acetylene.
Elemental Abundances in M31: The Kinematics and Chemical Evolution of Dwarf Spheroidal Satellite Galaxies*
Authors: Kirby Evan N. , Gilbert Karoline M. , Escala Ivanna , Wojno Jennifer , Guhathakurta Puragra , Majewski Steven R. , Beaton Rachael L.
Published: January 2020

We present deep spectroscopy from Keck/DEIMOS of Andromeda I, III, V, VII, and X, all of which are dwarf spheroidal satellites of M31. The sample includes 256 spectroscopic members across all five dSphs. We confirm previous measurements of the velocity dispersions and dynamical masses, and we provide upper limits on bulk rotation. Our measurements confirm that M31 satellites obey the same relation between stellar mass and stellar metallicity as Milky Way (MW) satellites and other dwarf galaxies in the Local Group. The metallicity distributions show trends with stellar mass that are similar to those of MW satellites, including evidence in massive satellites for external influence, like pre-enrichment or gas accretion. We present the first measurements of individual element ratios, like [Si/Fe], in the M31 system, as well as measurements of the average [α/Fe] ratio. The trends of [α/Fe] with [Fe/H] also follow the same galaxy mass–dependent patterns as MW satellites. Less massive galaxies have more steeply declining slopes of [α/Fe] that begin at lower [Fe/H]. Finally, we compare the chemical evolution of M31 satellites to M31's Giant Stellar Stream and smooth halo. The properties of the M31 system support the theoretical prediction that the inner halo is composed primarily of massive galaxies that were accreted early. As a result, the inner halo exhibits higher [Fe/H] and [α/Fe] than surviving satellite galaxies.
Properties of Local Oscillations in the Lower Sunspot Atmosphere
Authors: Sych Robert , Zhugzhda Yuzef , Yan Xiaoli
Published: January 2020

We present a study of wave processes in the sunspot region NOAA 12670 on 2017 August 10 observed by the Goode Solar Telescope in the TiO 7057 Å and Hα 6563 Å spectral lines. To study the distribution of power oscillations and their dynamics, we applied the pixelized wavelet filtering technique. For the first time, we obtained the spatial structure of oscillation sources as the footpoints of fine magnetic tubes, anchored in the sunspot umbra. We found that at the chromosphere level, the variation of emission is a combination of numerous independent oscillations located in the sources with small angular size. Their spatial shape varies from dots and cells in the umbra to filaments in the penumbra. Each narrow spectral harmonic corresponds to its source, without global correlation among themselves. There is a weak background as low-frequency oscillations distributed over the whole umbra. At the photosphere level we found regions with co-phased broadband oscillations of the whole umbra. Their spectrum includes the ∼3 minutes harmonic, whose maximal value is localized in umbral dots, and the low-frequency part near a period of ∼5 minutes. It is shown that the oscillation sources are displaced at different heights with increasing angular size. We assume that the observed spatial distribution of wave sources indicates the existence of a slow subphotospheric resonator with a vertical magnetic field in the umbra and a wave cutoff frequency due to inclination of the magnetic field line in the penumbra.
Photometric Redshift Estimation with Galaxy Morphology Using Self-organizing Maps
Authors: Wilson Derek , Nayyeri Hooshang , Cooray Asantha , Häußler Boris
Published: January 2020

We use multiband optical and near-infrared photometric observations of galaxies in the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey to predict photometric redshifts using artificial neural networks. The multiband observations span from 0.39 to 8.0 μm for a sample of ∼1000 galaxies in the GOODS-S field for which robust size measurements are available from Hubble Space Telescope Wide Field Camera 3 observations. We use self-organizing maps (SOMs) to map the multidimensional photometric and galaxy size observations while taking advantage of existing spectroscopic redshifts at 0 < z < 2 for independent training and testing sets. We show that use of photometric and morphological data led to redshift estimates comparable to redshift measurements from modeling of spectral energy distributions and from SOMs without morphological measurements.
HST/COS Spectra of the Wind Lines of VFTS 102 and 285
Authors: Shepard Katherine , Gies Douglas R. , Lester Kathryn V. , Wang Luqian , Guo Zhao , Kaper Lex , De Koter Alex , Sana Hugues
Published: January 2020

Rapid rotation in massive stars imposes a latitudinal variation in the mass loss from radiatively driven winds that can lead to enhanced mass loss at the poles (with little angular momentum loss) and/or equator (with maximal angular momentum loss). Here we present an examination of the stellar wind lines of the two O-type stars with the fastest known equatorial velocities, VFTS 102 (

km s−1; O9: Vnnne+) and VFTS 285 (

km s−1; O7.5 Vnnn) in the Large Magellanic Cloud. Ultraviolet spectra of both stars were obtained with the Hubble Space Telescope Cosmic Origins Spectrograph. The spectrum of VFTS 285 displays a fast outflow in N v and a much slower wind in Si iv, and we argue that there is a two-wind regime in which mass loss is strong at the poles (fast and tenuous wind) but dominant at the equator (slow and dense winds). These ions and wind lines are not present in the spectrum of the cooler star VFTS 102, but the double-peaked Hα emission in its spectrum implies equatorial mass loss into a circumstellar disk. The results suggest that in the fastest rotating O-stars, most mass is lost as an equatorial outflow, promoting angular momentum loss that contributes to a spin-down over time.
A Catalog of AGN Host Galaxies Observed with HST/ACS: Correlations between Star Formation and AGN Activity
Authors: Stemo Aaron , Comerford Julia M. , Barrows R. Scott , Stern Daniel , Assef Roberto J. , Griffith Roger L.
Published: January 2020

We present the Advanced Camera for Surveys Active Galactic Nuclei (ACS-AGN) Catalog, a catalog of 2585 active galactic nucleus (AGN) host galaxies that are at redshifts 0.2 < z < 2.5 and that were imaged with the Hubble Space Telescope’s Advanced Camera for Surveys (ACS). Using the ACS General Catalog (ACS-GC) as our initial sample, we select an AGN subsample using Spitzer and Chandra data along with their respective established AGN selection criteria. We then gather further multiwavelength photometric data in order to construct spectral energy distributions (SEDs). Using these SEDs, we are able to derive multiple AGN and host galaxy properties, such as star formation rate (SFR), AGN luminosity, stellar mass, and nuclear column density. From these data, we show that AGN host galaxies tend to lie below the star-forming main sequence, with X-ray-selected AGN host galaxies being more offset than IR-selected AGN host galaxies. This suggests that there is some process, possibly negative feedback, in AGN host galaxies causing decreased star formation. We also demonstrate that there is a positive trend between the SFR and AGN luminosity in AGN host galaxies, in individual redshift bins, and across all redshift bins, and that both are correlated with the stellar mass of their galaxies. This points toward an underlying link between the stellar mass, stellar growth, and supermassive black hole growth in a galaxy.
The Colors and Sizes of Recently Quenched Galaxies: A Result of Compact Starburst before Quenching
Authors: Wu 吳 Po-Feng 柏鋒 , Wel Arjen van der , Bezanson Rachel , Gallazzi Anna , Pacifici Camilla , Straatman Caroline M. S. , Barišić Ivana , Bell Eric F. , Chauke Priscilla , D’Eugenio Francesco , Franx Marijn , Muzzin Adam , Sobral David , Houdt Josha van
Published: January 2020

We analyze the colors and sizes of 32 quiescent (UVJ-selected) galaxies with strong Balmer absorption (EW(Hδ) ≥ 4 Å) at z ∼ 0.8 drawn from DR2 of the LEGA-C survey to test the hypothesis that these galaxies experienced compact, central starbursts before quenching. These recently quenched galaxies, usually referred to as post-starburst galaxies, span a wide range of colors, and we find a clear correlation between color and half-light radius, such that bluer galaxies are smaller. We build simple toy models to explain this correlation: a normal star-forming disk plus a central, compact starburst component. Bursts with exponential decay timescale of ∼100 Myr that produce ∼10% to more than 100% of the preexisting masses can reproduce the observed correlation. More significant bursts also produce bluer and smaller descendants. Our findings imply that when galaxies shut down star formation rapidly, they generally had experienced compact, starburst events and that the large, observed spread in sizes and colors mostly reflects a variety of burst strengths. Recently quenched galaxies should have younger stellar ages in the centers; multiwavelength data with high spatial resolution are required to reveal the age gradient. Highly dissipative processes should be responsible for this type of formation history. While determining the mechanisms for individual galaxies is challenging, some recently quenched galaxies show signs of gravitational interactions, suggesting that mergers are likely an important mechanism in triggering the rapid shutdown of star formation activities at z ∼ 0.8.
Cytogenetic and pollen identification of genus Gagnepainia (Zingiberaceae) in Thailand
Authors: Moonkaew Paramet , Nopporncharoenkul Nattapon , Jenjittikul Thaya , Umpunjun Puangpaka
Published: January 2020

Gagnepainia godefroyi K. Schumann, 1904 and G. harmandii K. Schumann, 1904 belong to the genus Gagnepainia K. Schumann, 1904 of the Ginger family. They have the potential to be developed as medicinal and attractive ornamental plants. To date, the knowledge on the cytological and reproductive aspects of Gagnepainia have not been publicly available. Therefore, the aims of this research are to investigate the cytogenetic and pollen characters of Gagnepainia species using light, fluorescence, and scanning electron microscopes. The regular meiotic figures of 15 bivalents are found in both species and presented for the first time. These evidences indicate that Gagnepainia is diploid and contains 2n = 2x = 30 with basic number of x = 15. The mean nuclear DNA contents range from 1.986 pg in Gagnepainia sp., 2.090 pg in G. godefroyi to 2.195 pg in G. harmandii. Pollens of all species are monad, inaperturate, prolate with bilateral symmetry, and thick wall with fossulate exine sculpturing. The pollen size of G. harmandii (74.506 ± 5.075 μm, 56.082 ± 6.459 μm) is significantly larger than that of G. godefroyi (59.968 ± 3.484 μm, 45.439 ± 2.870 μm). Both 2C DNA content and pollen size are the effective characteristics for species discrimination. The reproductive evidence of high meiotic stability and normal pollen production indicate that both Gagnepainia species have high fertility and seed productivity, which are in accordance with the broad distribution. The present study provides good cytogenetic and pollen characters not only for plant identification, but also plant fertility assessment through plant genetic resource management and improvement of Gagnepainia.
Triploidy in Chinese parthenogenetic Helophorus orientalis Motschulsky, 1860, further data on parthenogenetic H. brevipalpis Bedel, 1881 and a brief discussion of parthenogenesis in Hydrophiloidea (Coleoptera)
Authors: Angus Robert B. , Jia Fenglong
Published: January 2020

The chromosomes of triploid parthenogeneticHelophorus orientalisMotschulsky, 1860 are described from material from two localities in Heilongjiang, China. 3n = 33. All the chromosomes have clear centromeric C-bands, and in the longest chromosome one replicate appears to be consistently longer than the other two. The chromosomes of additional triploid parthenogeneticH. brevipalpisBedel, 1881, from Spain and Italy, are described. In one Italian population one of the autosomes is represented by only two replicates and another appears more evenly metacentric than in material from Spain and the other Italian locality. Parthenogenetic and bisexual specimens ofH. orientalisare illustrated, along with Pleistocene fossil material. ParthenogeneticH. brevipalpisis also illustrated. Parthenogenesis in Hydrophiloidea is discussed. It appears to be rare and, in all cases has been detected by chromosomal analysis of populations in which males are unexpectedly scarce. Parthenogenesis is suspected inHelophorus aquilaAngus et al., 2014, from northern Qinghai (China), which should be verified in further studies.
Mopla guttata (Acrididae: Catantopinae) rediscovered in the Western Ghats, Kerala, India
Authors: Bhaskar Dhaneesh , Easa P.S. , Rowell C.H.F.
Published: January 2020

The endemic Catantopinae genus Mopla was described by Henry in 1940 from the Malabar region of South India. Henry described two species under this genus, M. guttata and M. rubra. The female type specimens of Mopla are deposited in the Natural History Museum, London, UK. There have been no further records of these two species since their description. Seventy-six years later, the first male specimen of the genus Mopla was discovered in the Western Ghats, Kerala, India, in 2016. This paper describes the specimen, thought to be of Mopla guttata, and reconsiders its systematic placement.
An annotated checklist of Myanmar orchid flora
Authors: Aung Ye Lwin , Mu Aye Thin , Aung Mung Htoi , Liu Qiang , Jin Xiao-Hua
Published: January 2020

Myanmar is situated in Southeast Asia, where species richness and diversity are very high. Myanmar orchid flora is very rich, but still poorly known because botanical explorations have sharply decreased in Myanmar since 1950. The present study provides a checklist of Myanmar orchid flora which includes 1040 species and 151 genera currently known from Myanmar, based on the herbarium specimens, literature and online databases. The number of species is increased by approximately 200 species more than that given in the checklist of Kress et al. (2003), mainly due to recent discoveries of new species to science and new records for Myanmar. There are 76 endemic species of Orchidaceae in Myanmar. It is estimated that ca. 150–300 species still remain as unidentified and are expected to be discovered in further studies on Myanmar orchid flora.
An updated checklist of Begonia (Begoniaceae) in Laos, with two new species and five new records
Authors: Ding Hong-Bo , Maw Mya Bhone , Yang Bin , Bouamanivong Somsanith , Tan Yun-Hong
Published: January 2020

Two new species of Begonia L. (Begoniaceae), B. laotica (sect. Parvibegonia) and B. hypoleuca (sect. Reichenheimia), from north Laos are described and illustrated. Begonia augustinei, B. dryadis, B. lancangensis, B. sizemoreae and B. sillentensis subsp. mengyangensis were newly recorded taxa in Laos. Furthermore, an updated checklist of Begonia of Laos is also compiled.
Droit à la ville au Sud et construction des légitimités ordinaires
Authors: Didier Sophie , Philifert Pascale
Published: January 2020

Si la notion de droit à la ville est fortement mobilisée dans les débats sociétaux et les travaux scientifiques contemporains sur la ville, elle résonne de façon particulière et très diverse dans les villes du sud que ce soit pour maintenir un droit à être et demeurer en ville ou encore pour l’accès à la ville et à ses ressources. Dans le sillage de ces réflexions et de ces analyses, ce numéro thématique entend questionner le droit à la ville dans les villes des Suds sous un angle particulier en insistant sur les processus de construction de légitimités qui informent et traduisent en acte et de manière souple la notion de droit à la ville. Pour ce faire, l’accent est porté sur les pratiques ordinaires et les expériences quotidiennes des citadins qui mobilisent diverses tactiques et pratiques spatialisées, dans les temps et les espaces plus banals du quotidien urbain. Dès lors, pour l’ensemble des contributions proposées, il s’agit moins de se focaliser sur les luttes et conflits urbains que d’interroger la pluralité des façons de prendre place en ville et les différentes façons d’élaborer des stratégies de légitimation fondées sur l’usage des lieux, sur la réappropriation urbaine, ou les arts de faire.
De l’injonction au droit à la ville au Sud, comment construire une citadinité légitime dans une ville ex nihilo en Inde
Authors: Leclerc Éric
Published: January 2020

La question du droit à la ville au Sud se pose avec beaucoup d’acuité pour les pays en voie d’urbanisation rapide comme la Chine ou l’Inde. Ces nouveaux espaces urbains sont le résultat de méga-projets qui remodèlent et étendent les villes traditionnelles remettant en cause le droit à la ville des citadins présents, provoquant le déplacement des plus précaires. Il existe pourtant des situations où le droit à la ville est octroyé comme à Amaravati, la nouvelle capitale de l’Andhra Pradesh en Inde du Sud. Sur l’ensemble de l’espace du projet (200 km²), les villageois ont basculé en 2015 dans le monde urbain décrété par le gouvernement d’Andhra Pradesh. Pour autant, ont-ils acquis un droit à la ville, plein et entier, comme défini par H. Lefebvre ? Une première réponse vient du modèle urbain et de sa mise en œuvre, celui de la ville inclusive choisi par les autorités. Quelle est l’étendue du droit accordé et qui est en capacité de s’en emparer ? Grâce à des travaux de terrain nous avons pu constater que le gouvernement d’Andhra Pradesh accorde inégalement des droits dans la ville, il ne permet pas un « droit à la ville » entier. Seuls les propriétaires fonciers peuvent tirer parti du modèle spéculatif voulu à Amaravati. Cette situation de production d’une ville à neuf démontre que le droit à la ville demeure une conquête collective soumise aux ambitions de groupes sociaux concurrents.
Simone de Beauvoir, Judith Butler : des parallèles qui divergent
Authors: Prokhoris Sabine
Published: January 2020

Par la « lecture » qu’elle fait du  Deuxième sexe , l’auteure de  Trouble dans le genre , tout en se réclamant du célèbre énoncé beauvoirien : « On ne naît pas femme, on le devient », prétend dépasser le féminisme universaliste de Simone de Beauvoir. On montrera que la « déconstruction » butlérienne de Beauvoir, outre qu’elle repose sur toute une série de glissements et de contresens, aboutit à une version du féminisme qui fait bon marché de l’émancipation réelle des femmes.
Radicale-ment, Nature-elle-ment
Authors: Deudon Catherine
Published: January 2020

En 1970 aux « Petites Marguerites » Catherine entend une petite phrase homophobe. Elle écrit à Monique Wittig pour savoir si oui ou non l’homosexualité sera admise au Mouvement de libération des femmes. Elle fut la première à interpeller sur cette question permettant l’émergence d’une parole censurée et auto-censurée. Quelques années plus tard elle écrit « Radicale-ment, Nature-elle-ment » dans la Revue d’en face pour contrer le radicalisme lesbien qui se prétend plus politique que le féminisme et essentialise l’hétérosexualité (toutes « collabos » comme en 40 ?) et consacre les « lesbiennes » comme avant garde révolutionnaire par essence.
Comment organiser un tiers-lieu éphémère pour favoriser l’émergence d’innovations institutionnelles ? Le cas d’un pôle d’opérateurs de services à domicile
Authors: Grenier Corinne , Ibrahim Rym , Duprat Lola
Published: January 2020

Nous analysons comment des acteurs variés, formant un tiers-lieu éphémère, mais peu habitués à travailler ensemble, ont pu aller au-delà de tensions institutionnelles pour élaborer une innovation sociale (un habitat collectif et connecté pour seniors) et démontrer leur légitimité à agir. L’analyse d’un cas inédit nous permet d’observer, à travers l’élaboration d’une grille d’analyse (environnement social, vie communautaire, et organisation partielle), l’organisation de ce tiers-lieu éphémère. Nos observations empiriques nous ont conduits à mobiliser le concept d’organisationalité pour comprendre les leviers ayant permis au tiers-lieu éphémère de permettre l’innovation malgré sa faiblesse structurelle : la force du design thinking comme méthode alternative de co-construction de connaissances, la construction d’une cause commune, la reconnaissance d’une légitimité à agir, la gestion des frontières sociales et temporelles du lieu. L’identification de ces leviers offre alors un enrichissement du concept d’organisationalité. Codes JEL : O310
L’Histoire contre l’Histoire : penser un canon littéraire pour échapper aux temps de guerre
Authors: Fournel Jean-Louis
Published: January 2020

Quels codes donner à une langue que l’on considère comme jeune et dénuée de toute forme de régulation autre que l’usage ? C’est à cette question que tente de répondre Pietro Bembo par une solution aussi radicale que « canonique ». Pour le patricien vénitien, écrire en langue vulgaire commune implique désormais de suivre strictement deux modèles uniques, et des modèles strictement « auctoriaux » : Pétrarque pour la poésie et Boccace pour la prose. Cette contribution tente de montrer quelles sont les implications de ce choix bien connu sur l’histoire de la littérature italienne, mais aussi et surtout sur la conception de l’Histoire tout court. Ce faisant, elle met en évidence comment s’élabore une histoire pacifiée alternative à l’histoire belliqueuse du temps présent qui bouleverse l’Italie du début du xvi e  siècle.
La place des auteures médiévales dans le canon littéraire (Marie de France et Christine de Pizan)
Authors: Paupert Anne
Published: January 2020

On s’intéresse ici à la place accordée dans l’histoire littéraire à différentes époques aux deux auteures les plus connues de la littérature médiévale française, Marie de France ( xii e  siècle) et Christine de Pizan (début du xv e  siècle). Célèbres en leur temps, elles sont ensuite tombées dans l’oubli avant d’être redécouvertes au xix e  siècle, mais leur image a considérablement évolué jusqu’à nos jours. On étudie cette évolution à travers les différentes institutions qui contribuent à la formation du canon littéraire en France, en établissant ceux que l’on appelle les « grands auteurs » ou les « classiques » : les manuels d’histoire littéraire, la spécificité française que constitue le concours de l’agrégation de Lettres, l’enseignement universitaire, les manuels scolaires. On s’interroge en conclusion sur les moyens qui peuvent être mis en œuvre pour réviser le canon.
« L’os et l’or et le texte mêlés ». Pierre Michon ou la réinvention des reliques
Authors: Séguy Mireille
Published: January 2020

Cet article s’intéresse à la manière dont Pierre Michon réinvente le genre médiéval de l’hagiographie dans Mythologies d’hiver . Il tente de montrer en quoi ce geste de réactualisation permet à l’auteur d’interroger ce qui fonde la pertinence et la permanence du canon littéraire, mais aussi de trouver, pour lui-même, les voies d’une nouvelle pratique de l’auctorialité.
La qualification de la vente a tempérament en droit belge
Authors: Bodart F , Hella-Dufey M , Poullet P , Poullet Y
Published: January 2020

Une décision judiciaire est toujours le résultat d’une étrange construction. Les faits s’interpellent l’un l’autre, se conjuguent, se valorisent et finalement éclosent en droit. C’est ce jeu du fait et du droit, cette mise à nu du raisonnement judiciaire que nous avons voulu pratiquer à propos de la jurisprudence relative à la qualification de la vente à tempérament. Mais l’analyse ne s’arrête pas là et renvoie le lecteur à des questions essentielles : Et si le jeu avait des règles, … ? S’il était possible de systématiser ces règles, … ? Mieux., l’outil informatique ne pourrait-il à la limite révéler des moments de nécessité dans le droit et dès lors “prédire” le droit ?
Ocular Sequelae in Premature Infants
Authors: Nelson Leonard B.
Published: January 2020

EXCERPT

A minority of premature infants develop threshold retinopathy of prematurity; when it is present, however, its effect on vision and its treatment are of utmost concern. Myopia and high myopia are common in infants with high-risk prethreshold and threshold retinopathy of prematurity. In this issue of the Journal of Pediatric Ophthalmology & Strabismus, Holmström and associates found that the presence of anisometropia at 6 months was a risk factor for strabismus at 10 years of age.
Efficiency in the Public University
Authors: Boutchich Driss El Kadiri
Published: January 2020

Usual efficiency evaluation methods, such as Data Envelopment Analysis and Stochastic Frontier Estimation tend to calculate efficiency scores which are valid only at a given moment and for the units where in the sample. At most, Malmquist index determines efficiency scores for period t+1. Those drawbacks can be avoided by translating efficiency scores in terms of probabilities trough the Discriminant Analysis which enables also, to provide appropriate weightings activities of research laboratories, object of this study. In addition to Discriminant Analysis, Hierarchical Cluster Analysis is used to classify those activities into homogeneous groups, while Data Envelopment Analysis is employed to categorize laboratories in efficient and inefficient structures. This method is applied on a public university in east of Morocco. This study shows that indexed publications as well as the supported doctoral thesis or in state of supervision have the greatest impact on efficiency of the research laboratories.
Lane Detection Algorithm Based on Road Structure and Extended Kalman Filter
Authors: Xiao Jinsheng , Xiong Wenxin , Yao Yuan , Li Liang , Klette Reinhard
Published: January 2020

Lane detection still demonstrates low accuracy and missing robustness when recorded markings are interrupted by strong light or shadows or missing marking. This article proposes a new algorithm using a model of road structure and an extended Kalman filter. The region of interest is set according to the vanishing point. First, an edge-detection operator is used to scan horizontal pixels and calculate edge-strength values. The corresponding straight line is detected by line parameters voted by edge points. From the edge points and lane mark candidates extracted above, and other constraints, these points are treated as the potential lane boundary. Finally, the lane parameters are estimated using the coordinates of the lane boundary points. They are updated by an extended Kalman filter to ensure the stability and robustness. Results indicate that the proposed algorithm is robust for challenging road scenes with low computational complexity.
A Machining Program Employing a Slip Line Field Modelling Technique Over Other Constitutive Models
Authors: Kalita Hridayjit , Kumar Kaushik
Published: January 2020

Machining involves complex plastic material flow at the chip separation site which makes it difficult to predict forces and other machining outputs to higher accuracy. Modelling is a common technique which facilitates incorporation of analytical and experimentally derived equations to visualize the process and analyses the mechanism. It saves time and machining factors can be optimized without any trial and error method. In this paper, the significance of slip line field model over other constitutive laws in defining the complex regions in machining are thoroughly reviewed and a slip line field model is chosen which incorporates build up edge (BUE) of a larger size than the other previously defined slip line models for machining. The modified model also incorporate a region of shear zone instead of a shear line, takes into account the chip curl effect and conform to the velocity discontinuity and stress equilibrium. The slip line fields are generated using MATLAB and employing Dewhurst-Collin's matrix technique.
Symbiotic Organisms Search Optimization for Multilevel Image Thresholding
Authors: Chakraborty Falguni , Roy Provas Kumar , Nandi Debashis
Published: January 2020

Determination of optimum thresholds is the prime concern of any multilevel image thresholding technique. The traditional methods for multilevel thresholding are computationally expensive, time-consuming, and also suffer from lack of accuracy and stability. To address this issue, the authors propose a new methodology for multilevel image thresholding based on a recently developed meta-heuristic algorithm, Symbiotic Organisms Search (SOS). The SOS algorithm has been inspired by the symbiotic relationship among the organism in nature. This article has utilized the concept of the symbiotic relationship among the organisms to optimize three objective functions: Otsu's between class variance and Kapur's and Tsallis entropy for image segmentation. The performance of the SOS based image segmentation algorithm has been evaluated using a set of benchmark images and has been compared with four recent meta-heuristic algorithms. The algorithms are compared in terms of effectiveness and consistency. The quality of the algorithms has been estimated by some well-defined quality metrics such as peak signal-to-noise ratio (PSNR), structure similarity index (SSIM), and, feature similarity index (FSIM). The experimental results of the algorithms reveal that the balance of intensification and diversification of the SOS algorithm to achieve the global optima is better than others.
Retornos do primeiro dia de IPO, preferência por assimetria e sentimento do investidor
Authors: Costa Yngrid Cabral Lima da , Machado Marcio André Veras , Miranda Kléber Formiga
Published: January 2020

O presente estudo teve por objetivo investigar a relação entre a preferência por assimetria, o sentimento dos investidores e os retornos do primeiro dia das empresas brasileiras que realizaram IPO no período de 2005 a 2017. A amostra contou com 105empresas, dentre as 150 que realizaram IPO nesse intervalo de 13 anos. O método econométrico utilizado foi análise de regressão. Como principais resultados, observou-se que tanto a preferência dos investidores por assimetria quanto o sentimento do investidor, mensurado pelo índice com variáveis de mercado e pelo volume, afetaram positivamente os retornos do primeiro dia de IPO, não se podendo rejeitar as hipóteses de pesquisa. Os resultados não foram robustos a outras proxies de sentimento do investidor (Momento, ICC - Índice de Confiança do Consumidor e ICI - Índice de Confiança da Indústria), porém o efeito da assimetria e do índice de sentimento permaneceram evidentes em todas estimativas utilizadas, com exceção da estimação com amostra de empresas com idade superior a 11 anos no momento do IPO. A contribuição teórica da pesquisa envolve, além da discussão sobre a assimetria idiossincrática no mercado brasileiro quando da ocorrência de IPOs, a verificação do papel da idade da empresa para verificação do efeito da assimetria e do sentimento do investidor no retorno do primeiro dia do IPO. Conclui-se, portanto, que os investidores reagem positivamente a momentos de otimismo no mercado (sentimento do investidor), demonstrando sua preferência por assimetria em relação aos retornos do primeiro dia do IPO.
Influência do comitê de auditoria e suas características na assimetria da informação em empresas brasileiras
Authors: Schlup Daiani , Soschinski Caroline Keidann , Cunha Paulo Roberto da , Silva Alini da
Published: January 2020

O estudo objetivou analisar a influência do comitê de auditoria e de suas características de independência e expertise na assimetria da informação em empresas brasileiras. Para tanto, utilizouse de pesquisa descritiva, documental e quantitativa. A população de pesquisa correspondeu as 100 empresas listadas no índice IBRx100 da B3 (Brasil, Bolsa e Balcão), durante o período de 2012 a 2016. Os resultados relacionados a influência do comitê de auditoria na assimetria informacional não foram estatisticamente significantes, o que sugere que a existência de um comitê de auditoria por si só não se mostrou capaz de minimizar a assimetria informacional. Porém, quanto as empresas que possuíam comitê de auditoria e apresentaram características como independência e expertise, constatou-se que a expertise se mostrou estatisticamente significante e negativamente relacionada à assimetria informacional, o que gera indícios deque a existência de pelo menos um membro com expertise financeira no comitê, é capaz de minimizar a assimetria informacional entre gestores e investidores. Mediante os resultados evidenciados, contribui-se em cenário brasileiro como forma de nortear as empresas a estruturarem de maneira adequada seu comitê de auditoria, buscando membros com expertise financeira, para assim, melhorar a qualidade do comitê no cumprimento de suas funções e na redução da assimetria informacional.
Study Optical and Structure Properties of Nano ZnO/Cu2O Mixture Prepared by Pulsed Laser Deposition for Application
Authors: Mohammad Ayad Z.
Published: January 2020

Nd:YAG laser was used at different number of shots (300, 500, and 700 pulse) to prepare ZnO:Cu2O nanoparticles at mixing ratios of (0.5, 0.7 and 0.9). The optical, structural, morphological and electrical properties of the prepared films were investigated. The energy band gap was found to be (2.5, 3.2 and 3.53 e.v). The crystalline structure showed no impurity peaks indicating that the final product was free from surface impurities. Also, the materials peaks and intensity is present and well identified as the mixing ratio varies. The AFM results for all ratios indicate that as the number of pulses increase, the higher the resulted grain size. The average grain size was between (58.82 nm) to (95.75nm). The J-V characteristics were measured for the prepared solar cells and it was found that the efficiency varied with the mixing ratio and film thickness from 0.29% to 2.38%. F.F varied from 0.28 to 0.25.
Analytical Study of the Effect of NaCl Solution on Fatigue Resistance of Rotating Shafts
Authors: Obaid Sabah Hatam , Ahmed Adnan Noori , Ibrahim Hadi Raheem
Published: January 2020

Dynamic shafts subjecting to salty rain water, especially in places with no rain water drainage networks, is undesirable because this media causes corrosion of the parts of shaft that increases as increasing of shaft immersion in a salty media (NaCl) also, increasing of concentration which in turns reducing number of operation runs. Increasing salt concentration from 3% to 6% NaCl results in decreasing of operation runs from 25600 to 17100 runs. Also, increasing salt concentration leads to raise the effect of alternating stress that makes strain hardening factor drop to 0.45 and ratio of dynamic shear stress to static one raise to 2.44 that affects shaft metal performance to resist fatigue. Samples were also, treated by oxy acetylene surface hardening and were cooled by immersion in oil then immersion in 6% NaCl salty solution, the results showed that number of operation runs before failure had increased up to 71022, the effect of alternating stress had decreased down to 6100 N/m2, surface strain hardening factor had increased up to , also ratio of dynamic shear stress to static one had decreased down to 0.839. This is a good indicator of the effectiveness of surface hardening process of shaft parts that subject to salty rain water during maintenance operations.
Modeling and Evaluation of Smart Economic Transfemral Prosthetic
Authors: Kadhim Fahad Mohanad , Takhakh Ayad Murad , Chiad Jumaa Salman
Published: January 2020

This study deals with evaluation of smart economic transfemral Prosthetic consist of a new design and manufacturing of knee joint and design and manufacture of a simple electronic circuit that is programmed to control the muscle pressure on the sensor during movement and transfer the voltage of force sensor after processing in microcontroller to the electric motor to flexion and extend the knee joint. A number of tests were carried out to evaluate the smart prosthetic. Gait cycle and EMG tests were performed on a patient with amputation above the knee in two cases, the first is when the patient is wearing the traditional limb and the second is when the patient is wearing the smart prosthetic. The results showed that the gait cycle during the wearing of the smart prosthetic is more acceptable, stable and balanced than the case of the traditional prosthetic wear. The results of EMG test showed that muscles need less effort during movement when wearing a smart limb and this indicates that the energy spent is less and thus provide comfort to the patient. The results of the finite element analysis (ANSYS 14.5) of the knee joint confirmed the strength of the joint and its ability to carry high weights for patients.
Smart Cement Modified by Adding Multi Nano Powder for Oil Well Applications
Authors: Abdullah Doaa M. , Abdul-Hamead Alaa A. , Othman Farhad M.
Published: January 2020

In this Research, a ball mill procedure was used to prepare a nanopowder from a cement dust material supplied by Cement Factory for reinforcing the oil well cement through using it as a partial replacement of oil well cement class G by a weight percentage of (0.25 to 1%) and nanorod ZnO with the same percentages. The mix with a water to cement ratio was kept at 0.44. Characterizations of the structured prepared samples were done, density and compressive strength and free water. Experimental outcomes display that the generated nanopowder have a particle size of (100 nm) and that the structural properties improved significantly with the development phase of calcium silicate hydration C-S-H. Density and compressive strength significantly improved with lower free water. That makes it proper as smart cement for the oil well applications.
Mechanical Characteristics of Asphalt Mixture Modified by Polypropylene Waste
Authors: Ayash Ahmed A. , Raouf Raouf Mahmood , Eweed Khalid Mershed
Published: January 2020

Plastics are durable and inexpensive, making the levels of their production high in relation to other materials. Further, the plastics have a slow degradation process under normal conditions, and as a result they have a long life-time. These two factors have led to increasing the plastic waste, affecting, adversely, inhabitants and environment. Re-using plastic waste as additives can be viewed as one of the promising approaches to tackle this issue and, equally, can be considered a cheap way of improving many engineering materials. In the current paper, the effect of adding polypropylene (PP) waste to asphalt mixture (asphalt and aggregate) was explored. The exploration was made first by determining the best asphalt content (without polypropylene) and then investigating the effect of different percentages of PP waste on the performance of this optimal mix. The results showed that 5.5% (by mass) gives a good balance among the properties (flow value, stability and bulk density). Further, the results indicated that the PP waste has improved most asphalt mixture characteristics where bulk density and flow values tests pointed that 9% of PP is the best concentration.