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1
Culbertson, Margaret. "MAIL-ORDER HOUSE AND PLAN CATALOGUES IN THE UNITED STATES, 1876–1930". Art Documentation: Journal of the Art Libraries Society of North America 11, n.º 1 (abril de 1992): 17–20. http://dx.doi.org/10.1086/adx.11.1.27948411.
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Clumpner, Krista Ellis, Robert Schweitzer y Michael W. R. Davis. "America's Favorite Homes: Mail-Order Catalogues as a Guide to Popular Early 20th Century Houses". Michigan Historical Review 16, n.º 2 (1990): 107. http://dx.doi.org/10.2307/20173243.
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Brewer, Rosemary y Alan Cocker. "The ‘New Way’ of Shopping: Farmers Trading Company Catalogues 1909 – 1938." Back Story Journal of New Zealand Art, Media & Design History, n.º 3 (1 de diciembre de 2017): 87–101. http://dx.doi.org/10.24135/backstory.vi3.30.
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In August this year Australasian retailers were informed of an approaching “Death Star”1. The American online retail giant Amazon announced plans to open its first major Australian warehouse, what it called a ‘fulfillment centre’, in suburban Melbourne. In New Zealand retailers were reported as being “spooked by the ‘Amazon Effect’” according to researchers at Massey University2 who found that business confidence had fallen since 2016 and the global online retailer was being cited as the main reason for uncertainty. With the opening of the Australian warehouse it was estimated that Amazon could build a business with annual sales of $915 million in this country in just five years.3 Over a century ago the New Zealand retail industry was shaken by another 'retail revolution', the mail order catalogue.
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Möckel, Benjamin. "Consuming Anti-Consumerism: The German Fairtrade Movement and the Ambivalent Legacy of ‘1968’". Contemporary European History 28, n.º 4 (31 de octubre de 2019): 550–65. http://dx.doi.org/10.1017/s0960777319000262.
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AbstractThe article explores the influence of ‘1968’ on the West German fair trade movement. It argues that 1968 constituted an ambivalent legacy for the perception of mass consumerism: while the 1960s student movement radically criticised modern consumer society, it also put new emphasis on consumer products as markers of individual identity. The article analyses this relationship by focusing on the design, representation and advertising of fair trade products by the German fair trade organation GEPA. The first two case studies examine the politicisation of fair trade products in its early campaigns in the 1970s and the subsequent attempts to use everyday products like coffee, tea and honey to educate consumers about their individual lifestyles. The third case study looks at the GEPA's first mail-order catalogues and asks how the GEPA tried to transform an icon of modern mass consumerism into a tool to communicate its fair trade approach.
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Nalepa, C. A., K. A. Kidd y D. I. Hopkins. "The Multicolored Asian Lady Beetle (Coleoptera: Coccinellidae): Orientation to Aggregation Sites". Journal of Entomological Science 35, n.º 2 (1 de abril de 2000): 150–57. http://dx.doi.org/10.18474/0749-8004-35.2.150.
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Several studies were conducted to determine the cues used by the lady beetle Harmonia axyridis (Pallas) when orienting to aggregation sites in autumn: (1) artificial shelters modeled after those commercially available in mail order catalogues were baited with live adults and hung on the outside of buildings known from past years to be aggregation sites, (2) differential arrival of the two sexes at overwintering sites was examined by collecting and sexing the beetles alighting on buildings at two points in time during the aggregation period, and (3) the distribution of overwintering H. axyridis among beehives was determined in ten apiaries. Results indicate no preference for the artificial shelters and no orientation to the conspecifics within them. Sex ratios of beetles arriving at aggregation sites were consistent over time in two of the three sites examined. During winter, adult H. axyridis were non-randomly distributed among physically similar beehives. We conclude that there is little evidence for volatile aggregation pheromones and suggest that the chemical cues that mediate the final stages of aggregation behavior in H. axyridis may be based on contact chemoreception with conspecifics or the feces and residues that persist in aggregation sites from previous years.
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Olsen, J. L. "Chestnut Production in the Northwestern United States". HortTechnology 10, n.º 2 (enero de 2000): 296–97. http://dx.doi.org/10.21273/horttech.10.2.296.
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The chestnut (Castanea Mill.) industry in the northwestern United States is in its relative infancy, with most orchards being less than 10 years of age. Currently there are an estimated 300 acres (121 ha) in Oregon and Washington. California has about 500 acres (202 ha) in chestnuts. Current worldwide production is over 500,000 tons (435,600 t). China is the leading producer with 40%, followed by Korea at 15%. Italy, Turkey and Japan grow 10% each, while France, Greece and Spain grow 4% each. The United States, Chile, Argentina, New Zealand and Australia each grow less than 1%. The value of chestnuts imported into the United States is estimated to be $10 to 15 million annually. Domestic producers hope to displace some of the imported chestnuts in the marketplace. The leading variety being grown in the western United States is `Colossal,' a hybrid between european chestnut (C. sativa Mill.) and japanese chestnut (C. crenata Gillet). `Dunstan' hybrids are chestnut blight (Cryphonectria parasitica Murr.) resistant, and were bred in Florida using chinese chestnut (C. mollisima Blume) and american chestnut (C. dentata Marsh. Borkh.) parentage. Prices received by chestnut producers in the northwestern United States have ranged from $1.20 to $7.00/lb ($2.64 to $15.40/kg). The marketing of chestnuts has been through brokers into wholesale markets, farmers markets, mail order and direct sales through catalogues and World Wide Web sites.
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Taff, L. G., V. V. Tel’nyuk-Adamchuk y O. A. Molotaj. "NPC, A New Combined Position Catalogue of Stars in the Northern Pole Region". International Astronomical Union Colloquium 165 (1997): 499–504. http://dx.doi.org/10.1017/s0252921100047011.
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AbstractThe main task of this work was to construct a new catalogue of positions and proper motions of stars in the north polar cap, and using the results obtained to study the systematic features of the source catalogues as well as the reference system in the polar region. To achieve the goal, thirteen source catalogues, both meridian and photographic, covering an epoch span near one and a half century, were collected. Most of them were not involved in the process of both the PPM and the ACRS constructions. The new combined catalogue of positions and proper motions, named North Polar Catalogue (NPC), lists 4272 stars on the FK5 system, J2000.0. The catalogue was constructed using the method of infinitely overlapping circles. It represents the second use of this procedure to construct a star catalogue. External rms accuracy of positions for the epoch of 2000 is equal to 015 and 025 for the centennial proper motions, respectively. The internal rms errors of positions at the mean catalogue epoch, near 1940, are equal to 018 and 015 for right ascension and declination correspondingly, while external rms position errors for that epoch are of the order of 005. Comparisons were made between the NPC and three modern catalogues, the FK5, PPM, and ACRS. The systematic differences between the new catalogue and PPM one for the epoch of 2000 are valuable, especially in the case of errors depending on right ascension. The authors consider as an essential part of the systematic differences that, which is caused by some shortcomings of the PPM in the polar zone. For the mean epoch of the new catalogue positions the systematic differences are smaller.
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Chambers, M. L. y R. W. Eglese. "Forecasting demand for mail order catalogue lines during the season". European Journal of Operational Research 34, n.º 2 (marzo de 1988): 131–38. http://dx.doi.org/10.1016/0377-2217(88)90347-5.
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Green, D. A. "The Galactic distribution of SNRs". Proceedings of the International Astronomical Union 9, S296 (enero de 2013): 188–96. http://dx.doi.org/10.1017/s1743921313009459.
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AbstractIt is not straightforward to determine the distribution of supernova remnants (SNRs) in the Galaxy. The two main difficulties are that there are observational selection effects that mean that catalogues of SNRs are incomplete, and distances are not available for most remnants. Here I discuss the selection effects that apply to the latest catalogue of Galactic SNRs. I then compare the observed distribution of ‘bright’ SNRs in Galactic longitude with that expected from models in order to constrain the Galactic distribution of SNRs.
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Pailoplee, Santi. "Earthquake Catalogue of the Thailand Meteorological Department — A Commentary". Journal of Earthquake and Tsunami 08, n.º 05 (diciembre de 2014): 1471001. http://dx.doi.org/10.1142/s1793431114710018.
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In this study, I investigated qualitatively the earthquake catalogue of the Thai Meteorological Department (TMD), Thailand, with respect to the seismicity patterns of Thailand. The readymade relationships between the different magnitude scales were derived to allow their convenient interconversion. Earthquake declustering was performed in order to screen the main shocks from the foreshocks and aftershocks, reducing the 1998–2009 records from ~48,900 to 2,620 main events. Man-made changes in the seismicity rate were carefully checked for, but only some minor changes were found and these were not related to any network improvements. In order to assess the limit of the earthquake detection in the catalogue the criterion of the magnitude of completeness (Mc) was employed, revealing a high efficiency of earthquake detection at a low Mc (3.0–3.5 Mw), especially for the inland active fault zone that dominates in Southeast Asia. Thus, the TMD's catalogue is one of the alternative catalogues for seismicity investigation of inland earthquakes. Meanwhile for the area surrounding the Sumatra Island and Northern Myanmar, the TMD's network is sufficient only for earthquakes with a Mw > 5.4–6.0 Mw. Thus, some additional seismic recording stations are needed in the Southern and Northern parts of Thailand.
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Terblanché, N. S., C. Boshoff y E. V. D. M. Smit. "Consumers' reasons for purchasing low involvement goods by mail catalogue: Preliminary measurement guidelines". South African Journal of Business Management 30, n.º 3 (30 de septiembre de 1999): 93–99. http://dx.doi.org/10.4102/sajbm.v30i3.760.
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New forms and applications of technology have enabled business organisations to increasingly utilise multiple channels for the distribution of retail products. One example, mail-order catalogue buying, has now become an acceptable shopping format for larger numbers of consumers. Earlier research clearly indicated that non-shop shopping, such as buying by mail-order catalogue, is not only very different from shop shopping, but consumers also undertake non-shop shopping for distinct reasons. The primary objective of the research reported here was to identify the reasons underlying the purchasing of low involvement products by mail-order catalogue and to develop a reliable and valid instrument that could identify and measure such reasons.
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Gómez, M. E. "Handling of Microfiche". International Astronomical Union Colloquium 110 (1989): 122. http://dx.doi.org/10.1017/s0252921100003146.
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The microficher received at the Library E.S.O. - La Silla, come from different sources: old journals out of print, articles in current journals which often include microfiche for long tables, catalogs and figures not suitable for normal printing, and larger catalogues of data (IUE, IRAS, etc.). These microfiche, coming either in journals or being a publication themselves, are ordered in the same way: -Every microfiche is assigned a running number.-Three cards are typed: the main one being by author, the second one by title of the article, and the third one by title of the journal. In addition, the running number that identifies the microfiche is typed on the upper right corner of each card. The total amount of microfiche that make up the article or publication is given at the lower center of each card.-The cards are kept in a special catalogue cabinet labeled Microfiche., in strict alphabetical order, where the cards by author, title, and publication are mixed together.-The microfiche themselves are kept in a plastic tray with fiche separators and index dividers with insertable label holders. These label holders are placed at an interval of every five fiche separators. The holders display the running numbers of the microfiche.-In addition, every fiche separator carries on its front side an adhesive label which contains the same information as that found on the main card.
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Samus, N. N. "Hipparcos Stars in The GCVS". Highlights of Astronomy 11, n.º 1 (1998): 550. http://dx.doi.org/10.1017/s1539299600022048.
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Prof. M. Grenon asked the team of the General Catalogue of Variable Stars to attribute GCVS names to new Hipparcos variables in order to present, in the Hipparcos Catalogue, the information on these stars already with final designations. We received lists of 5665 variables. Of them, 3157 qualified to the standard GCVS criteria and will appear in the 74th Namelist of variable stars.The main problems in compiling the Namelist were the following:1.Cases of spurious variability for double and multiple stars and for misidentified stars (wrong colour indices used in reductions). Some wrong identifications come from the SIMBAD data base.2.Lacking identifications with catalogues of spectroscopic binaries. Some stars attributed to slowly pulsating B variables are in fact ellipsoidal variables. HIP 98954 = V1472 Aql was classified as a semiregular star, but it is a rather unusual, probably eclipsing, star (Samus, 1997), a known spectroscopic-binary M giant with a 200d period (Lucke and Mayor, 1982).
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Polenghi, Simonetta. "Italian academic pedagogical magazines in the history of education in the XX century". Pedagógiatörténeti Szemle 1, n.º 4 (11 de abril de 2017): 1. http://dx.doi.org/10.22309/ptszemle.2015.4.1.
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Keywords: Italian academic pedagogical magazines, extensive historical works, educational publishing housesThis paper aims to reconstruct the main strands of Italian educational thought using academic pedagogical magazines as a mirror for scientific and political developments through the years. I shall follow a chronological order, indicating the main changes which have occurred in Italy since its unification, concentrating on cultural turns and academic shifts. Pedagogical and school magazines have been the object of quite a number of extensive historical works, followed by other studies on school and educational publishing houses. Giorgio Chiosso has been the leading figure in this research for many years, having directed national projects in pedagogical journals and publishing houses, which have provided important historical tools, such as the catalogues of Italian school and educational magazines 1820-1945 (Chiosso, 1989, 1992, 1993, 1997) and the catalogues of Italian pedagogical publishing houses in the XIX and XX centuries (Chiosso, 2003a, 2008). Whilst the pedagogical magazines before and after unification have been carefully catalogued, the educational journals of Republican Italy have yet to be researched. An updated short biography and bibliography of the quoted educationalists can be found in the recent biographical dictionary directed by Chiosso and Sani (2013).
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Terblanche, N. S., C. Boshoff y E. V. D. M. Smit. "Risk relievers in mail-order catalogue retailing: The case of the high-frequency purchaser of low-involvement products". South African Journal of Economic and Management Sciences 2, n.º 3 (30 de septiembre de 1999): 358–73. http://dx.doi.org/10.4102/sajems.v2i3.2585.
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This article reports on the identification of how various risk relievers, available to consumers and mail-order catalogue organisations, influence general risk perception. Consumers who have purchased low-involvement products on a number of occasions by mail-order constitute the sample. The findings are that two of the major risk relievers significantly reduce, whilst another one increases, the general risk perceptions of mail-order customers when buying low-involvement goods. These findings are important to mail-order catalogue managers because they confirm that a variety of risk relievers need to be offered to ensure that perceived risks are properly addressed.
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Hass, Mary E. "Learning from an Old Mail-Order Catalogue: A Resource Unit on Change in America". Middle School Journal 19, n.º 2 (febrero de 1988): 22–24. http://dx.doi.org/10.1080/00940771.1988.11494961.
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Vioque, M., R. D. Oudmaijer, M. Schreiner, I. Mendigutía, D. Baines, N. Mowlavi y R. Pérez-Martínez. "Catalogue of new Herbig Ae/Be and classical Be stars". Astronomy & Astrophysics 638 (junio de 2020): A21. http://dx.doi.org/10.1051/0004-6361/202037731.
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Context. The intermediate-mass pre-main sequence Herbig Ae/Be stars are key to understanding the differences in formation mechanisms between low- and high-mass stars. The study of the general properties of these objects is hampered by the lack of a well-defined, homogeneous sample, and because few and mostly serendipitously discovered sources are known. Aims. Our goal is to identify new Herbig Ae/Be candidates to create a homogeneous and well defined catalogue of these objects. Methods. We have applied machine learning techniques to 4 150 983 sources with data from Gaia DR2, 2MASS, WISE, and IPHAS or VPHAS+. Several observables were chosen to identify new Herbig Ae/Be candidates based on our current knowledge of this class, which is characterised by infrared excesses, photometric variabilities, and Hα emission lines. Classical techniques are not efficient for identifying new Herbig Ae/Be stars mainly because of their similarity with classical Be stars, with which they share many characteristics. By focusing on disentangling these two types of objects, our algorithm has also identified new classical Be stars. Results. We have obtained a large catalogue of 8470 new pre-main sequence candidates and another catalogue of 693 new classical Be candidates with a completeness of 78.8 ± 1.4% and 85.5 ± 1.2%, respectively. Of the catalogue of pre-main sequence candidates, at least 1361 sources are potentially new Herbig Ae/Be candidates according to their position in the Hertzsprung-Russell diagram. In this study we present the methodology used, evaluate the quality of the catalogues, and perform an analysis of their flaws and biases. For this assessment, we make use of observables that have not been accounted for by the algorithm and hence are selection-independent, such as coordinates and parallax based distances. The catalogue of new Herbig Ae/Be stars that we present here increases the number of known objects of the class by an order of magnitude.
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Dagoneau, N., S. Schanne, J. Rodriguez, J. L. Atteia y B. Cordier. "Onboard catalogue of known X-ray sources for SVOM/ECLAIRs". Astronomy & Astrophysics 645 (21 de diciembre de 2020): A18. http://dx.doi.org/10.1051/0004-6361/202038995.
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The SVOM mission currently under development will carry various instruments, and in particular the coded-mask telescope ECLAIRs, with a large field of view of about 2 sr, operating in the 4–150 keV energy band. The main goal of ECLAIRs is to detect high-energy transients such as gamma-ray bursts. Its onboard trigger software will search for new hard X-ray sources appearing in the sky, as well as peculiar behaviour (e.g. strong outbursts) from known sources, in order to repoint the satellite to perform follow-up observations with its onboard narrow-field-of-view instruments. The presence of known X-ray sources must be disentangled from the appearance of new sources. This is done with the help of an onboard source catalogue, which we present in this paper. As an input we use catalogues of X-ray sources detected by Swift/BAT and MAXI/GSC and we study the influence of the sources on ECLAIRs’ background level and on the quality of the sky-image reconstruction process. We show that the influence of the sources depends on the pointing direction on the sky, on the energy band, and on the exposure time. In the Galactic centre, the contribution from known sources largely dominates the cosmic X-ray background, which is, on the contrary, the main background in sky regions lacking strong sources. We also demonstrate the need to clean the contributions of these sources in order to maintain a low noise level in the sky images and to maintain a low threshold for the detection of new sources without introducing false triggers. We briefly describe one of our cleaning methods and its challenges. Finally, we present the overall structure of the onboard catalogue and the way it will be used to perform the source cleaning and disentangle detections of new sources from outbursts of known sources.
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Quist, Carl F. y Lennart Lindegren. "Binarity of Hipparcos Main Sequence Survey Stars". Symposium - International Astronomical Union 200 (2001): 64–68. http://dx.doi.org/10.1017/s0074180900225060.
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Hipparcos observations of double stars, mainly A and F primaries, are modelled in order to check the statistics of double-star solutions in the Hipparcos Catalogue and to set quantitative limits on binary distributions. The number of companions per primary is estimated to 0.25 ± 0.05 for semi-major axes from 1 to 10 AU, and to 0.43 ± 0.20 for the range 10–100 AU. The total multiplicity found is between 0.9 and 1.2.
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Yang, C., F. Rottensteiner y C. Heipke. "CNN-BASED MULTI-SCALE HIERARCHICAL LAND USE CLASSIFICATION FOR THE VERIFICATION OF GEOSPATIAL DATABASES". International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B2-2021 (28 de junio de 2021): 495–502. http://dx.doi.org/10.5194/isprs-archives-xliii-b2-2021-495-2021.
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Abstract. Land use is an important piece of information with many applications. Commonly, land use is stored in geospatial databases in the form of polygons with corresponding land use labels and attributes according to an object catalogue. The object catalogues often have a hierarchical structure, with the level of detail of the semantic information depending on the hierarchy level. In this paper, we extend our prior work for the CNN (Convolutional Neural Network)-based prediction of land use for database objects at multiple semantic levels corresponding to different levels of a hierarchical class catalogue. The main goal is the improvement of the classification accuracy for small database objects, which we observed to be one of the largest problems of the existing method. In order to classify large objects using a CNN of a fixed input size, they are split into tiles that are classified independently before fusing the results to a joint prediction for the object. In this procedure, small objects will only be represented by a single patch, which might even be dominated by the background. To overcome this problem, a multi-scale approach for the classification of small objects is proposed in this paper. Using this approach, such objects are represented by multiple patches at different scales that are presented to the CNN for classification, and the classification results are combined. The new strategy is applied in combination with the earlier tiling-based approach. This method based on an ensemble of the two approaches is tested in two sites located in Germany and improves the classification performance up to +1.8% in overall accuracy and +3.2% in terms of mean F1 score.
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Knežević, Z. y A. Milani. "Higher Order and Iterative Theories to Compute Asteroid Mean Elements". International Astronomical Union Colloquium 172 (1999): 359–60. http://dx.doi.org/10.1017/s0252921100072717.
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Mean orbital elements are obtained from their instantaneous, osculating counterparts by removal of the short periodic perturbations. They can be computed by means of different theories, analytical or numerical, depending on the problem and accuracy required. The most advanced contemporary analytical theory (Knežević 1988) accounts only for the perturbing effects due to Jupiter and Saturn, to the first order in their masses and to degree four in eccentricity and inclination. Nevertheless, the mean elements obtained by means of this theory are of satisfactory accuracy for majority of the asteroids in the main belt (Knežević et al. 1988), for the purpose of producing large catalogues of mean and proper elements, to identify asteroid families, to assess their age, to study the dynamical structure of the asteroid belt and chaotic phenomena of diffusion over very long time spans. In the vicinity of the main mean motion resonances, however, especially 2:1 mean motion resonance with Jupiter, these mean elements are of somewhat degraded accuracy.
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Rossetti, A., F. Mantovani, C. Fanti y R. Fanti. "Search for CSS and GPS Candidates from the Peacock and Wall Catalogue". Publications of the Astronomical Society of Australia 20, n.º 1 (2003): 35–37. http://dx.doi.org/10.1071/as02036.
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AbstractSamples of CSS/GPS sources suitable for statistical studies have been selected from the 3CR catalogue and from the Peacock & Wall catalogue. The selection criterion used for the Peacock & Wall catalogue CSS/GPS sources selects sources which peak below about 2 GHz and are therefore larger than ˜200 pc. Our main aim is to find among the flat spectrum sources in the Peacock & Wall catalogue smaller size CSS/GPS sources by means of systematic high resolution observations. The discovery of a few more would be important in order to finally have a complete flux limited sample of this class of objects. We discuss the results obtained so far for three of the observed sources.
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Ion, Constanţa–Mihaela. "A Catalogue of the Geophilomorpha Species (Myriapoda: Chilopoda) of Romania". Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa” 58, n.º 1-2 (1 de abril de 2016): 17–32. http://dx.doi.org/10.1515/travmu-2016-0001.
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AbstractA commented list of 42 centipede species from order Geophilomorpha present in Romania, is given. This comes to complete the annotated catalogue compiled by Negrea (2006) for the other orders of the class Chilopoda: Scutigeromorpha, Lithobiomorpha and Scolopendromorpha. Since 1972, when Matic published the first monograph on epimorphic centipeds from Romania in the series “Fauna României” as the results of his collaboration with his student Cornelia Dărăbanţu, the taxonomical status of many species has been debated and sometimes clarified. Some of the accepted modifications were included by Ilie (2007) in a checklist of centipedes, lacking comments on synonymies. The main goal of this work is, therefore, to update the list of known geophilomorph species from taxonomic and systematic point of view, and to include also records of new species.
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Pastori, L. y G. Malaspina. "An Improvement in the Visual Surface Brightness Scale for B5-F5 Main Sequence Stars". Symposium - International Astronomical Union 111 (1985): 523–24. http://dx.doi.org/10.1017/s0074180900079377.
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Angular diameters of 593 B5-F5 main sequence stars listed in the “Catalogue of apparent diameters and absolute radii of stars” (CADARS; Fracassini et al. 1981) have been analysed in order to improve the precision of the visual surface brightness Sv. The new relations between this quantity and the color index (B-V)o turn out to be in good agreement with those found with the interferometric method (Barnes et al. 1978). Moreover, the results suggest that surface gravity effects may bias the Sv-(B-V)o relations.
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Haigh, Susan. "Library Catalogue Users Are Influenced by Trends in Web Searching". Evidence Based Library and Information Practice 1, n.º 3 (14 de septiembre de 2006): 77. http://dx.doi.org/10.18438/b8ks33.
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A review of:
Novotny, Eric. “I Don’t Think I Click: A Protocol Analysis Study of Use of a Library Online Catalog in the Internet Age.” College & Research Libraries, 65.6 (Nov. 2004): 525-37.
Objective – To explore how Web-savvy users think about and search an online catalogue.
Design – Protocol analysis study.
Setting – Academic library (Pennsylvania State University Libraries).
Subjects – Eighteen users (17 students, 1 faculty member) of an online public access catalog, divided into two groups of nine first-time and nine experienced users.
Method – The study team developed five tasks that represented a range of activities commonly performed by library users, such as searching for a specific item, identifying a library location, and requesting a copy. Seventeen students and one faculty member, divided evenly between novice and experienced searchers, were recruited to “think aloud” through the performance of the tasks. Data were gathered through audio recordings, screen capture software, and investigator notes. The time taken for each task was recorded, and investigators rated task completion as “successful,” “partially successful,” “fail,” or “search aborted.” After the searching session, participants were interviewed to clarify their actions and provide further commentary on the catalogue search.
Main results – Participants in both test groups were relatively unsophisticated subject searchers. They made minimal use of Boolean operators, and tended not to repair failed searches by rethinking the search vocabulary and using synonyms. Participants did not have a strong understanding of library catalogue contents or structure and showed little curiosity in developing an understanding of how to utilize the catalogue.
Novice users were impatient both in choosing search options and in evaluating their search results. They assumed search results were sorted by relevance, and thus would not typically browse past the initial screen. They quickly followed links, fearlessly tried different searches and options, and rapidly abandoned false trails.
Experienced users were more effective and efficient searchers than novice users. They used more specific keyword terms and were more persistent to review their search options and results. Through their prior experience, they knew how to interpret call numbers, branch library location codes, and library terminology such as ‘periodicals’.
Participants expected the catalogue to rank results based on relevancy like an Internet search engine. While most were observed to understand intuitively the concept of broadening or narrowing a search, a ‘significant minority’ added a term to an already too-narrow search to improve their search results.
When interviewed, participants suggested several ways to improve the catalog search query, such as adding summaries and contents, ranking results by relevance and degree of exact match to search terms, including an Amazon-like “find more like this” feature, and providing context-sensitive and interactive online help, especially at the point when a search has produced too many or too few hits.
Conclusions – The study concluded that library catalogue users are heavily influenced by trends in Web searching. No matter what type of search a task called for, the participants tended to expect a simple keyword search to lead to optimal results presented in relevancy-ranked order.
Because users do not generally know or care about the structure of a bibliographic record, and many have little concept of what a library catalogue is for or what it contains, Novotny suggests that user instruction needs to address these basics. He also suggests that library professionals and library system vendors must work together to address the clear evidence that library catalogues are failing their users.
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Marton, G., P. Ábrahám, E. Szegedi-Elek, J. Varga, M. Kun, Á. Kóspál, E. Varga-Verebélyi et al. "Identification of Young Stellar Object candidates in the Gaia DR2 x AllWISE catalogue with machine learning methods". Monthly Notices of the Royal Astronomical Society 487, n.º 2 (14 de mayo de 2019): 2522–37. http://dx.doi.org/10.1093/mnras/stz1301.
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ABSTRACT The second Gaia Data Release (DR2) contains astrometric and photometric data for more than 1.6 billion objects with mean Gaia G magnitude <20.7, including many Young Stellar Objects (YSOs) in different evolutionary stages. In order to explore the YSO population of the Milky Way, we combined the Gaia DR2 data base with Wide-field Infrared Survey Explorer (WISE) and Planck measurements and made an all-sky probabilistic catalogue of YSOs using machine learning techniques, such as Support Vector Machines, Random Forests, or Neural Networks. Our input catalogue contains 103 million objects from the DR2xAllWISE cross-match table. We classified each object into four main classes: YSOs, extragalactic objects, main-sequence stars, and evolved stars. At a 90 per cent probability threshold, we identified 1 129 295 YSO candidates. To demonstrate the quality and potential of our YSO catalogue, here we present two applications of it. (1) We explore the 3D structure of the Orion A star-forming complex and show that the spatial distribution of the YSOs classified by our procedure is in agreement with recent results from the literature. (2) We use our catalogue to classify published Gaia Science Alerts. As Gaia measures the sources at multiple epochs, it can efficiently discover transient events, including sudden brightness changes of YSOs caused by dynamic processes of their circumstellar disc. However, in many cases the physical nature of the published alert sources are not known. A cross-check with our new catalogue shows that about 30 per cent more of the published Gaia alerts can most likely be attributed to YSO activity. The catalogue can be also useful to identify YSOs among future Gaia alerts.
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Kattelman, Beth A. "Magicians' Trade Catalogs". Theatre Survey 55, n.º 2 (11 de abril de 2014): 233–48. http://dx.doi.org/10.1017/s0040557414000088.
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In her essay in the most recent Re: Sources column, Sharon Marcus argues for the importance of theatrical scrapbooks as historical resources and notes that, to date, they have been largely neglected. I offer the current essay as a companion piece to Marcus's in that I would like to argue for the importance of another largely neglected resource for theatre researchers: trade catalogs. Specifically, I will focus on the mail-order trade catalogs of magic supply houses that were prevalent throughout the twentieth century until Web sites took over as the primary marketing tools for these establishments. I also draw upon Christopher B. Balme's idea that historiographic rewards can be earned by paying close attention to the information contained in theatrical playbills. Balme posits that one reason playbills have been neglected is because they are considered to be further removed from a theatrical performance than visual evidence such as photographs, designs, or videos:In comparison to theatre iconography—which in superficial readings would seem to offer the promise of access to the theatrical event, a performance on the stage (which of course it seldom does)—the playbill is foreplay but not the act itself. Like most foreplay, the playbill is clearly designed to excite, to stimulate; but for the scholar in search of the real thing, the transcendent experience and enchantment that is the “performance,” playbills represent a kind of archival ludus interruptus.
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Cara, Michel, Yves Cansi, Antoine Schlupp, Pierre Arroucau, Nicole Béthoux, Eric Beucler, Stéphane Bruno et al. "SI-Hex: a new catalogue of instrumental seismicity for metropolitan France". Bulletin de la Société Géologique de France 186, n.º 1 (1 de enero de 2015): 3–19. http://dx.doi.org/10.2113/gssgfbull.186.1.3.
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Abstract The aim of the SI-Hex project (acronym for « Sismicité Instrumentale de l’Hexagone ») is to provide a catalogue of seismicity for metropolitan France and the French marine economic zone for the period 1962–2009 by taking into account the contributions of the various seismological networks and observatories from France and its neighbouring countries. The project has been launched jointly by the Bureau Central Sismologique Français (CNRS-University/BCSF) and the Laboratoire de Détection et de Géophysique (CEA-DAM/LDG). One of the main motivations of the project is to provide the end user with the best possible information on location and magnitude of each earthquake. So far, due to the various procedures in use in the observatories, the different locations and magnitudes of earthquakes located in the SI-Hex zone were presenting large discrepancies. In the 2014 version of the catalogue, 1D localizations of hypocentres performed with a unique computational scheme and covering the whole 1962–2009 period constitute the backbone of the catalogue (SI-Hex solutions). When available, they are replaced by more precise localizations made at LDG or, for recent times, by the regional observatories within: 1) the French Alps, 2) the southernmost Alps and the Mediterranean domain including Corsica, 3) the Pyrenees, and 4) the Armorican massif. Moment magnitudes Mw are systematically reported in the SI-Hex catalogue. They are computed from coda-wave analysis of the LDG records for most Mw>3.4 events, and are converted from local magnitudes ML for smaller magnitude events. Finally, special attention is paid to the question of discrimination between natural and artificial seismic events in order to produce a catalogue for direct use in seismic hazard analysis and seismotectonic investigations. The SI-Hex catalogue is accessible on the web site www.franceseisme.fr and contains 38,027 earthquake hypocentres, together with their seismic moment magnitudes Mw.
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Muona, J. "Zoological Catalogue of Australia, Volume 4 Coleoptera: Archostemata, Myxophaga and Adephaga (Part 1). 1987. ISBN 0 644 04896 4. Price AUS$ 34.95 (hc). - Available from Australian Government Bookshops and by mail order from AGPS Mail Order Sales, GPO Box 84, Canberra A.C.T. 2601, Australia". Insect Systematics & Evolution 19, n.º 1 (1988): 108. http://dx.doi.org/10.1163/187631289x00087.
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Trondal, Jarle y Michael W. Bauer. "Conceptualizing the European multilevel administrative order: capturing variation in the European administrative system". European Political Science Review 9, n.º 1 (2 de septiembre de 2015): 73–94. http://dx.doi.org/10.1017/s1755773915000223.
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Acknowledging that both analysts and practitioners face problems of meaningful categorization of social order in general, and the European political-administrative system in particular, this article suggests a conceptual frame through which European administrative order may be understood. Providing such a frame is important, because the catalogue of categories of the European Union (EU) polity developed so far fails to acknowledge its administrative dimension. Given that the ongoing political transformation in the EU implies ever more administrative interaction between political levels in order to coordinate, manage and implement policies, this administrative dimension becomes ever more important. This article thus sets out a threefold agenda: First, it offers a supplementary conceptual frame that takes the ‘administrative dimension’ seriously. It is suggested that the European politico-administrative organism should be conceived as a European multilevel administrative system (MLA) consisting of three dimensions: Institutional independence, integration and cooptation. Second, the article suggests how the MLA approach differs from one of its main conceptual rivals – the multilevel governance approach (MLG). Finally, the article offers some empirical illustrations of the value of the developed MLA approach for our understanding of the contemporary European administrative system.
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Stumpff, P. "Relativistic and perspective effects in proper motions and radial velocities of stars". Symposium - International Astronomical Union 114 (1986): 193–98. http://dx.doi.org/10.1017/s0074180900148181.
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The heliocentric motion of stars is investigated by taking into account all effects due to the geometry and due to the finite speed of light. It is shown that the proper motions as given in star catalogues contain the main light retardation term; an additional term of this type modifies Schlesinger's (1917) term but is less significant than a 3rd order perspective term neglected in conventional astrometry. Kapteyn's star serves as a numerical example. The ambiguous relativistic relation between Doppler shifts and radial velocities is discussed and demonstrated in a diagram. The ambiguity is solved with rigorous equations which allow to compute the inertial motion of a star from its proper motion, classical radial velocity, and distance. -
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Koseska-Toszewa, Violetta y Antoni Mazurkiewicz. "Constructing catalogue of temporal situations". Cognitive Studies | Études cognitives, n.º 10 (24 de noviembre de 2015): 71–109. http://dx.doi.org/10.11649/cs.2010.004.
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Constructing catalogue of temporal situationsThe paper is aiming to create a common basis for description, comparing, and analysis natural languages. As a subject of comparison we have chosen temporal structures of some languages. For such a choice there exists a perfect tool, describing basic temporal phenomena, namely an ordering of states and events in time, certainty and uncertainty, independency of histories of separate objects, necessity and possibility. This tool is supported by the Petri nets formalism, which seems to be well suited for expressing the above mentioned phenomena. Petri nets are built form three primitive notions: of states, of events that begin or end the states, and so-called flow relation indicating succession of states and events. This simple constituents give rise to many possibilities of representing temporal phenomena; it turns out that such representations are sufficient for many (clearly, not necessarily all) temporal situations appearing in natural languages.In description formalisms used till now there is no possibility of expressing such reality phenomena as temporal dependencies in compound statement, or combination of temporality and modality. Moreover, using these formalisms one cannot distinguish between two different sources of uncertainty of the speaker while describing the reality: one, due to the lack of knowledge of the speaker what is going on in outside world, the second, due to objective impossibility of foreseen ways in which some conflict situations will be (or already have been) resolved. Petri net formalism seems to be perfectly suited for such differentiations.There are two main description principles that encompassed this paper. First, that assigns meaning to names of grammatical structures in different languages may lead to misunderstanding. Two grammatical structures with apparently close names may describe different reality. Additionally, some grammatical terms used in one language may be absent and not understandable in the other. It leads to assign meanings to situations, rather than to linguistic forms used for their expression. The second principle is limit the discussed issues to such a piece of reality that can be possible for precise description. The third is to avoid introducing such information to the described reality that is not explicitly mentioned by linguistic means. The authors try to following these principles in the present paper.The paper is organized as follows. First, some samples of situations related to present tense are given together with examples of their expressions in four languages: English, (as a reference language) and three Slavic languages, representing South slavonic languages (Bulgarian), West slavonic languages (Polish), and East slavonic languages (Russian). Within the same framework the next parts of the paper are constructed, supplying samples of using Past tenses and, finally, future tenses and modalities.The formal tools for description purposes are introduced stepwise, according to needs caused be the described reality. There are mainly Petri nets, equipped additionally with inscriptions or labeling in order to keep proper assignations of description units to described objects.
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Merafina, Marco y Daniele Vitantoni. "Data Analysis of Globular Cluster Harris Catalogue in View of the King Models and Their Dynamical Evolution. II. Observational Evidences". Acta Polytechnica CTU Proceedings 1, n.º 1 (4 de diciembre de 2014): 235–39. http://dx.doi.org/10.14311/app.2014.01.0235.
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We summarize some observational comparison concerning the features of globular clusters (GCs) population in connection to the evolution of King models. We also make a comparison with some extragalactic GCs systems, in order to underline the effects of the main body on the dynamical evolution.
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Reddy, Y. Chandramohan, Prof K. Srujan Raju y K. Neeraja. "E-Library using the Mobile OPAC". INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 10, n.º 5 (20 de agosto de 2013): 1682–86. http://dx.doi.org/10.24297/ijct.v10i5.4146.
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In the todays Communication world, mobile and its applications are the most emerging trends. Mobile applications are the exact replacements of web based applications. Based on this statistics we are planning to migrate web based application of college library to mobile application. In most of the college website we see applications like latest news, Attendance, Login and Registrations, EBooks, Forums, Results, Chat application, Web Mail, etc.. Based on the same we would to do the same thing in a mobile application. The reason behind the work is that the mobile applications do not need any third party browsers, or they don't need any domain registration. So in order to take the advantages of all this limitations we are planning to develop the mobile applications. Now the main important modules that I want to implement on my mobile application is OPAC (Online Public Access Catalogue) for a library account. Using OPAC mechanism in mobile one can just access the library account of his/her from anywhere using his mobile device, So that they can check the availability of books in the library instead of going to library. They can even check the number of books that are taken in there account and its submission date, fine to be paid in case.
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Rex, Richard y C. D. C. Armstrong. "Henry VIII's ecclesiastical and collegiate foundations". Historical Research 75, n.º 190 (1 de noviembre de 2002): 390–407. http://dx.doi.org/10.1111/1468-2281.t01-1-00157.
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Abstract This article investigates Henry VIII's ecclesiastical foundations in order to assess their significance and to see what they can tell us about the king's personal religious convictions—a relatively under–explored area. After sketching the medieval background, the article catalogues Henry's foundations, and then explores their perceived and stated purposes, and their implications for the general course of the Reformation under Henry VIII. The main original sources are the patent rolls (here referred to mainly via the calendar of Letters and Papers of Henry VIII). Henry's choices about the dedications of his foundations are found to cast interesting new light on his devotional tastes and development. More broadly, the history of his foundations illustrates his hesitancy in breaking with traditional religion, and leads the authors to take issue with interpretations of Henry VIII's religious development advanced by G. W. Bernard.
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Cooper, N. J., V. Lainey, L. E. Meunier, C. D. Murray, Q. F. Zhang, K. Baillie, M. W. Evans, W. Thuillot y A. Vienne. "The Caviar software package for the astrometric reduction of Cassini ISS images: description and examples". Astronomy & Astrophysics 610 (febrero de 2018): A2. http://dx.doi.org/10.1051/0004-6361/201731713.
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Aims. Caviar is a software package designed for the astrometric measurement of natural satellite positions in images taken using the Imaging Science Subsystem (ISS) of the Cassini spacecraft. Aspects of the structure, functionality, and use of the software are described, and examples are provided. The integrity of the software is demonstrated by generating new measurements of the positions of selected major satellites of Saturn, 2013–2016, along with their observed minus computed (O−C) residuals relative to published ephemerides. Methods. Satellite positions were estimated by fitting a model to the imaged limbs of the target satellites. Corrections to the nominal spacecraft pointing were computed using background star positions based on the UCAC5 and Tycho2 star catalogues. UCAC5 is currently used in preference to Gaia-DR1 because of the availability of proper motion information in UCAC5. Results. The Caviar package is available for free download. A total of 256 new astrometric observations of the Saturnian moons Mimas (44), Tethys (58), Dione (55), Rhea (33), Iapetus (63), and Hyperion (3) have been made, in addition to opportunistic detections of Pandora (20), Enceladus (4), Janus (2), and Helene (5), giving an overall total of 287 new detections. Mean observed-minus-computed residuals for the main moons relative to the JPL SAT375 ephemeris were − 0.66 ± 1.30 pixels in the line direction and 0.05 ± 1.47 pixels in the sample direction. Mean residuals relative to the IMCCE NOE-6-2015-MAIN-coorb2 ephemeris were −0.34 ± 0.91 pixels in the line direction and 0.15 ± 1.65 pixels in the sample direction. The reduced astrometric data are provided in the form of satellite positions for each image. The reference star positions are included in order to allow reprocessing at some later date using improved star catalogues, such as later releases of Gaia, without the need to re-estimate the imaged star positions.
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Martinez Pedreira, M., C. Grigoras y V. Yurchenko. "JAliEn: the new ALICE high-performance and high-scalability Grid framework". EPJ Web of Conferences 214 (2019): 03037. http://dx.doi.org/10.1051/epjconf/201921403037.
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The ALICE experiment will undergo extensive hardware and software upgrades for the LHC Run3. This translates in significant increase of the CPU and storage resources required for data processing, and at the same time the data access rates will grow linearly with the amount of resources. JAliEn (Java ALICE Environment) is the new Grid middleware designed to scale-out horizontally to fulfil the computing needs of the upgrade, and at the same time to modernize all parts of the distributed system software. This paper will present the architecture of the JAliEn framework, the technologies used and performance measurements. This work will also describe the next generation solution that will replace our main database backend, the AliEn File Catalogue. The catalogue is an integral part of the system, containing the metadata of all files written to the distributed Grid storage and also provides powerful search and data manipulation tools. As for JAliEn, the focus has been put onto horizontal scalability, with the aim to handle near exascale data volumes and order of magnitude more workload than the currently used Grid middleware. Lastly, this contribution will present how JAliEn manages the increased complexity of the tasks associated with the new ALICE data processing and analysis framework (ALFA) and multi-core environments.
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SIERWALD, PETRA, JASON E. BOND y GRZEGORZ T. GURDA. "The millipede type specimens in the Collections of the Field Museum of Natural History (Arthropoda: Diplopoda)". Zootaxa 1005, n.º 1 (10 de junio de 2005): 1. http://dx.doi.org/10.11646/zootaxa.1005.1.1.
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Field Museum’s Millipede Collection currently comprises 376 type lots for 208 species. Types of the millipede orders Glomeridesmida (4 species), Sphaerotheriida (2 species), Polyzoniida (1 species), Platydesmida (7 species), Siphonophorida (8 species), Stemmiulida (10 species), Chordeumatida (17 species), Polydesmida (103 species), Spirobolida (33 species), Spirostreptida (19 species), and Julida (4 species) are represented. The collection contains type specimens of species described by the authors Bond & Sierwald (3 species), Chamberlin (95 species), Golovatch (1 species), Golovatch, Vohland & Hoffman (4 species), Hoffmann (8 species), Keeton (1 species), Loomis (85 species), Mauriès (2 species), Shear (4 species), Shear & Leonard (1 species), Shelley (1 species), Vohland (1 species), and Wesener & Sierwald (2 species). Amplinus fortinus Chamberlin, 1952 (Polydesmida: Aphelidesmidae) is identified as a nomen nudum. The millipede type material is separated from the main collection and vials are organized by order in jars. All lots are indentified with a unique collection number. Specimen data are cataloged and maintained in a Microsoft Excel spreadsheet. The collection catalog is slated to be moved to a relational database (KE-EMU) within the next few years.
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Chowdhary, Usha. "Apparel Shopping Behavior of Elderly Men and Women". Perceptual and Motor Skills 68, n.º 3_suppl (junio de 1989): 1183–89. http://dx.doi.org/10.2466/pms.1989.68.3c.1183.
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70 interested elderly (65 yr. and over) men and women participated in an investigation of older consumers' apparel-shopping behavior and satisfactions and dissatisfactions with available clothing and facilities. Analysis showed that the participants considered shopping ease, wide variety, and label/brand as some of the important factors while shopping for clothes. The respondents were satisfied with good selection, closeness of the mall, and reasonable sales. However, their dissatisfactions ranged from service to fit and size, youthful styles, and abundance of imported clothing. In-store displays, mail order catalogs, and window shopping were the most commonly used sources of apparel information. Several implications of the findings were discussed and suggestions for further research were made.
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Reed, Kathleen. "Mixed-Method Survey Research is Useful to Incrementally Improve Library Homepage Design". Evidence Based Library and Information Practice 10, n.º 3 (13 de septiembre de 2015): 114. http://dx.doi.org/10.18438/b8qw3c.
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A Review of:
Deschenes, A. (2014). Improving the library homepage through user research – without a total redesign. Weave, 1(1). http://dx.doi.org/10.3998/weave.12535642.0001.102
Abstract
Objective – To assess content organization and wording of links on the library’s homepage.
Design – Mixed-methods survey.
Setting – Small college, United States of America.
Subjects – 57 library users.
Methods – Library staff distributed paper surveys at the entrance to the library, with the goal of collecting a minimum of 30 surveys. The survey directed participants to indicate their preferred terms from a list, and their preference for ordering the menu items on the library’s homepage. Qualitative survey data was also collected via several open-ended questions that began with prompts such as “I really love…” and “I can never find…”
Main Results – The search box tab labelled “Library Catalogue” was preferred over “Books and Media,” which the staff believed to be a more user-friendly term. Using a pre-defined list, participants ranked the Library Catalogue as the most important tab, followed by E-Resources, Articles, and Library Guides. A link to the Library Catalogue was also selected as the most important resource sidebar link, followed by E-Resources, Full-Text Journals, Library Guides, and Refworks. The service sidebar links by order of importance were found to be: Library Hours, Group Study Rooms, Writing & Citing, Interlibrary Loan, and Chat with a Librarian. Qualitative feedback received demonstrated a lack of understanding what the terms “Library Guides” and “A-Z List” mean, and difficulty finding a complete list of databases. Library staff received feedback that the Library Hours and Account Log In should be made more prominent.
Conclusion – Library staff updated the website to reflect user preferences for wording and order of links on the homepage. Google Analytics showed a decrease of 30 seconds per average visit after the changes, which the author attributes to better wording and organization. There were no complaints about the website in the first three months after the change. The author concludes that a paper survey is an effective tool for librarians who would like to make incremental changes on their homepages.
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Shobbrook, Robyn M. "Conversion of the Anglo-Australian Observatory Library Card Catalogue using PC Software". International Astronomical Union Colloquium 110 (1989): 188–89. http://dx.doi.org/10.1017/s0252921100003353.
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A commercial software package has been used on a personal computer for the conversion of the Anglo-Australian Observatory card library catalogue. The software is sophisticated but has proven to be extremely flexible and easy to use for any library management task. The software is available at three levels; the AAO has the top level which allows for eight different databases on the one system. Each record may contain up to nine pages or screens of information and there is also a thesaurus facility. Although a multi-user system was preferred the cost of the software was out of the question. The flow-chart (Fig 1.) describes how a multi-user system was created from software designed for a single-user PC. The main files have been down-loaded in accession number order onto the VAX 11/780 minicomputer and these may be accessed on any terminal either at the laboratory headquarters at Epping in Sydney or at the telescope site at Coonabarabran 500 kms north-west of Sydney. The ‘read-only’ files can be searched using the VAX edit commands and a VAX sort facility is available for a listing of selected items if required. As a substitute measure this is proving to be most useful. Later when the files are too large and searching becomes slow it may be possible to purchase additional copies of the commercial PC software which allows more sophisticated search procedures.
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Danielski, C., C. Babusiaux, L. Ruiz-Dern, P. Sartoretti y F. Arenou. "The empirical Gaia G-band extinction coefficient". Astronomy & Astrophysics 614 (junio de 2018): A19. http://dx.doi.org/10.1051/0004-6361/201732327.
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Context. The first Gaia data release unlocked the access to photometric information for 1.1 billion sources in the G-band. Yet, given the high level of degeneracy between extinction and spectral energy distribution for large passbands such as the Gaia G-band, a correction for the interstellar reddening is needed in order to exploit Gaia data. Aims. The purpose of this manuscript is to provide the empirical estimation of the Gaia G-band extinction coefficient kG for both the red giants and main sequence stars in order to be able to exploit the first data release DR1. Methods. We selected two samples of single stars: one for the red giants and one for the main sequence. Both samples are the result of a cross-match between Gaia DR1 and 2MASS catalogues; they consist of high-quality photometry in the G-, J- and KS-bands. These samples were complemented by temperature and metallicity information retrieved from APOGEE DR13 and LAMOST DR2 surveys, respectively. We implemented a Markov chain Monte Carlo method where we used (G – KS)0 versus Teff and (J – KS)0 versus (G – KS)0, calibration relations to estimate the extinction coefficient kG and we quantify its corresponding confidence interval via bootstrap resampling. We tested our method on samples of red giants and main sequence stars, finding consistent solutions. Results. We present here the determination of the Gaia extinction coefficient through a completely empirical method. Furthermore we provide the scientific community with a formula for measuring the extinction coefficient as a function of stellar effective temperature, the intrinsic colour (G – KS)0, and absorption.
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Stauffer, John R., David Barrado y Navascués, Jerome Bouvier, Nicholas Lodieu y Mark McCaughrean. "Brown Dwarfs in the Alpha Persei Cluster". Symposium - International Astronomical Union 211 (2003): 163–70. http://dx.doi.org/10.1017/s0074180900210498.
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We have obtained a new, deep, wide-field optical imaging survey of the young Alpha Persei cluster which reveals a well-populated lower main sequence extending into the substellar mass regime. Subsequent infrared photometry confirms that most of the candidate brown dwarfs are indeed likely to be cluster members, with a predicted minimum mass of order 0.035 solar masses. We have combined the new candidate list with previous member catalogs to derive an IMF for Alpha Per; the slope of the IMF at the low mass end is α ~ 0.66. The Alpha Per IMF slope is thus very similar to that found in the Pleiades.
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Santana-Perez, Idafen y María S. Pérez-Hernández. "Towards Reproducibility in Scientific Workflows: An Infrastructure-Based Approach". Scientific Programming 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/243180.
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It is commonly agreed that in silico scientific experiments should be executable and repeatable processes. Most of the current approaches for computational experiment conservation and reproducibility have focused so far on two of the main components of the experiment, namely, data and method. In this paper, we propose a new approach that addresses the third cornerstone of experimental reproducibility: the equipment. This work focuses on the equipment of a computational experiment, that is, the set of software and hardware components that are involved in the execution of a scientific workflow. In order to demonstrate the feasibility of our proposal, we describe a use case scenario on the Text Analytics domain and the application of our approach to it. From the original workflow, we document its execution environment, by means of a set of semantic models and a catalogue of resources, and generate an equivalent infrastructure for reexecuting it.
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Zuniga, F. R., M. Reyners y P. Villamor. "Temporal variations of the earthquake data in the catalogue of seismicity of New Zealand". Bulletin of the New Zealand Society for Earthquake Engineering 38, n.º 2 (30 de junio de 2005): 87–105. http://dx.doi.org/10.5459/bnzsee.38.2.87-105.
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The authors have analyzed the main temporal characteristics of the earthquake data in the catalogue of seismicity of New Zealand with the objective of providing a general overview of its content and limitations. To this end we have employed different statistical tools which allow for the objective estimate of times of changes in the seismicity rates as well as providing the main reasons for those changes. We have found that the seismicity record of the largest events (M > 4.0) is bracketed by significant changes which occurred during 1940, 1965-1968, and 1987 with other less significant changes taking place during 1960, 1983 and 1992.
By comparing the rates obtained for intervals bounded by the aforementioned dates we were able to determine that a linear correction to the magnitudes in the period 1968 to 1987 for the whole depth range of events may be useful in order to match the frequency-magnitude distribution which is obtained using the current data in the interval 1987 - 2004. A different pattern emerged when separating shallow from intermediate and deep events and we found that most of the temporal variations observed affected mainly the deep events (Z > 40 km), and that the reported rate of shallow seismicity for M > 4.0 has been remarkably homogeneous since 1940. This observation is supported not only by the constancy of seismicity rates but by the similarity of frequency-magnitude distributions during the time intervals analyzed. A systematic evaluation of minimum magnitude of completeness for shallow seismicity yielded values of Mc = 4.4 for the interval 1940 to 1968, Mc = 3.9 for the interval 1968 to 1987 and Mc = 2.6 for the current stage from 1987 to 2004. A simple magnitude shift of 0.2 units applied to data in the interval 1968 to 1987 for intermediate and deep events was found to provide a good match to the observed rate for events from 1987 to 2004. The evaluation of Mc for events in the 40 ≤ z ≤ 600 km range yielded values of 5.5 for data in the interval 1940 to 1968, 4.0 for 1968 to 1987, and 3.6 for the current operative practice starting in I 987. A detailed investigation of the variation of the magnitude of completeness with time was carried out resulting in different trends which seem to correspond to the time when major changes were carried out in the network, in particular with the installation and removal of local microcarthquake networks.
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Romanowska-Zadrożna, Maria. "A KNIGHT IN THE SERVICE OF ART. HANNA BENESZ IN MEMORIAM (1947–2019)". Muzealnictwo 62 (17 de marzo de 2021): 13–22. http://dx.doi.org/10.5604/01.3001.0014.8096.
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Hanna Benesz graduated from the Institutes: of Art History and of Applied Linguistics at the University of Warsaw. Her whole career launched in 1975 remained inseparably connected with the National Museum in Warsaw, where she worked at the Gallery of European Art curating the Flemish and Dutch collections. She followed all the promotion steps: from assistant to curator. Benesz strongly believed that museum curator’s job was grounded in a perfect knowledge of the collection. Thanks to her research conducted into the paintings amassed in National Museum’s storerooms, she successfully attributed a substantial number of works and identified provenance of many. She studied iconography applying research methods worked out by iconology. Moreover, she focused on the paintings’ technical condition, this occasionally leading to spectacular ‘restorations’, e.g. the identification of a genuine work by Abraham Janssens (ca 1575–1632) the Lamentation of Christ in a forgotten work, previously considered to be a copy. Author and co-author of many exhibitions, she cooperated with museum curators around the world. Her exhibition on Baroque art reached as far as Japan. Benesz’s intention was not only to present the paintings from the National Museum’s collections through a direct contact of visitors with the works, but also in publications, mainly in English and online. As soon as she became curator, together with Maria Kluk she focused on working out the reasoned catalogue Early Netherlandish, Dutch, Flemish and Belgian Paintings 1494–1983 in the Collections of the National Museum in Warsaw and the Palace at Nieborów. Complete Illustrated Summary Catalogue, published in 2016. A year later, the Catalogue was honoured with the main prize in the Sybilla Competition in the category for publications, while the King of the Netherlands awarded Hanna Benesz with the chivalric Order of Orange-Nassau (Oranje-Nassau) of the 5th grade; she was decorated with it by the Ambassador of the Kingdom of the Netherlands during the 20th CODART Congress held at the Warsaw Łazienki Palace. Not only was Hanna Benesz an outstanding museum curator and scholar, but also a trusted friend and a warm empathetic person, sensitive to other people’s misfortunes.
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Martinez, Ana. "Dopamine antagonists for the treatment of drug addiction: PF-4363467 and related compounds". European Journal of Chemistry 11, n.º 1 (31 de marzo de 2020): 84–90. http://dx.doi.org/10.5155/eurjchem.11.1.84-90.1970.
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Drug addiction refers to an out-of-control and compulsive use of substances, which can reach epidemic magnitudes. It is a health concern throughout the world and has major economic impact. Dopamine receptor agonists and antagonists have been cited as molecular targets for the treatment of drug addiction. In this report, the main idea is to analyze the new D3R/D2R ligands that are proposed for the treatment of drug abuse, in terms of their electron donor/acceptor properties. Substances catalogued as agonists represent good electron donors, whereas antagonists represent good electron acceptors. HOMO and LUMO eigenvalues indicate that more energy is necessary to remove an electron from the antagonists, and likewise more energy is gained when antagonists accept an electron. The combination of two molecules (PF-592379 and PNU-177864) produces a new compound (PF-4363467) with properties that are intermediate. Irrespective of the characteristics of the receptor, the classification of ligands is important, in order to further understanding of the reaction mechanism of these compounds. This may help in the design of new molecules for the treatment of drug addiction.
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Páll-Gergely, Barna, Sheikh Sajan, Basudev Tripathy, Kaibaryer Meng, Takahiro Asami y Jonathan D. Ablett. "Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue". ZooKeys 981 (29 de octubre de 2020): 1–220. http://dx.doi.org/10.3897/zookeys.981.53583.
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412 species-group names (including 11 replacement names), and 14 genus-group names of the Alycaeidae have been introduced to date. Type materials of 85% (336) of the known species and subspecies were examined, a further 5% (19) of the taxa were studied using available non-type material, and for another 6% (22) the original descriptions were sufficiently detailed to evaluate their taxonomic status. Only 3% of the taxa (12) could not be examined. Special attention was paid to the sculpture of the embryonic whorls and the sutural tube-microtunnel system in order to provide a novel classification for this group. In this study 363 taxa (320 species or 43 subspecies) are accepted within the family Alycaeidae. Of these, 22 have been described by the lead author and his coauthors in previous publications. In addition, there are 18 species that were formerly classified in Cycloryx and now belong to Pincerna due to its synonymy with Cycloryx. Among the remaining 323 species, 209 (65%) are transferred here to another genus, whilst 114 (35%) have remained in their original genus. Seven genera are accepted. While some questions (e.g., the distinction between Pincerna and Alycaeus) remained unanswered, this revision made three main achievements: (1) The Dicharax species were identified based on the absence of spiral striation on the entire shell; (2) the Metalycaeus species were identified based on the spiral striation of the protoconch; (3) and Stomacosmethis was separated from Alycaeus based on the extremely short sutural tube. Five nominal species are being synonymised with other species, and eight species are now treated as subspecies. The following replacement names are proposed: Dioryx urnula niosiensis Páll-Gergely, nom. nov. for Alycaeus urnula var. daflaensis Godwin-Austen, 1914; Dioryx urnula rotundus Páll-Gergely, nom. nov. for Alycaeus urnula var. globosus Godwin-Austen, 1914; Pincerna crenilabris juttingae Páll-Gergely, nom. nov. for Alycaeus crenilabris laevis van Benthem Jutting, 1959; Pincerna crenilabris korintjiensis Páll-Gergely, nom. nov. for Alycaeus crenilabris latecostatus van Benthem Jutting, 1959; Dicharax conicus jatingaensis Páll-Gergely, nom. nov. for Alycaeus conicus var. nanus Godwin-Austen, 1914; Metalycaeus godwinausteni Páll-Gergely, nom. nov. for Alycaeus neglectus Godwin-Austen, 1914; and finally Metalycaeus suhajdai Páll-Gergely, nom. nov. for Alycaeus varius Godwin-Austen, 1914.
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Lavrenova, Olga A. y Andrey A. Vinberg. "Modern Users of Libraries and the Linked Open Data Environment". Bibliotekovedenie [Russian Journal of Library Science] 69, n.º 3 (27 de agosto de 2020): 243–60. http://dx.doi.org/10.25281/0869-608x-2020-69-3-243-260.
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The goal of any library is to ensure high quality and general availability of information retrieval tools. The paper describes the project implemented by the Russian State Library (RSL) to present Library Bibliographic Classification as a Networked Knowledge Organization System. The project goal is to support content and provide tools for ensuring system’s interoperability with other resources of the same nature (i.e. with Linked Data Vocabularies) in the global network environment. The project was partially supported by the Russian Foundation for Basic Research (RFBR).The RSL General Classified Catalogue (GCC) was selected as the main data source for the Classification system of knowledge organization. The meaning of each classification number is expressed by complete string of wordings (captions), rather than the last level caption alone. Data converted to the Resource Description Framework (RDF) files based on the standard set of properties defined in the Simple Knowledge Organization System (SKOS) model was loaded into the semantic storage for subsequent data processing using the SPARQL query language. In order to enrich user queries for search of resources, the RSL has published its Classification System in the form of Linked Open Data (https://lod.rsl.ru) for searching in the RSL electronic catalogue. Currently, the work is underway to enable its smooth integration with other LOD vocabularies. The SKOS mapping tags are used to differentiate the types of connections between SKOS elements (concepts) existing in different concept schemes, for example, UDC, MeSH, authority data.The conceptual schemes of the leading classifications are fundamentally different from each other. Establishing correspondence between concepts is possible only on the basis of lexical and structural analysis to compute the concept similarity as a combination of attributes.The authors are looking forward to working with libraries in Russia and other countries to create a common space of Linked Open Data vocabularies.
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Gkini, Anamaria, Manolis Plionis, Maria Chira y Elias Koulouridis. "Host galaxy and orientation differences between different AGN types". Astronomy & Astrophysics 650 (junio de 2021): A75. http://dx.doi.org/10.1051/0004-6361/202140278.
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Aims. The main purpose of this study is to investigate aspects regarding the validity of the active galactic nucleus (AGN) unification paradigm (UP). In particular, we focus on the AGN host galaxies, which according to the UP should show no systematic differences depending on the AGN classification. Methods. For the purpose of this study, we used (a) the spectroscopic Sloan Digital Sky Survey (SDSS) Data Release 14 catalogue, in order to select and classify AGNs using emission line diagnostics, up to a redshift of z = 0.2, and (b) the Galaxy Zoo Project catalogue, which classifies SDSS galaxies in two broad Hubble types: spirals and ellipticals. Results. We find that the fraction of type 1 Seyfert nuclei (Sy1) hosted in elliptical galaxies is significantly larger than the corresponding fraction of any other AGN type, while there is a gradient of increasing spiral-hosts from Sy1 to LINER, type 2 Seyferts (Sy2) and composite nuclei. These findings cannot be interpreted within the simple unified model, but possibly by a co-evolution scheme for supermassive black holes and galactic bulges. Furthermore, for the case of spiral host galaxies we find the Sy1 population to be strongly skewed towards face-on configurations, while the corresponding Sy2 population range in all host galaxy orientation configurations has a similar, but not identical, orientation distribution to star-forming galaxies. These results also cannot be interpreted by the standard unification paradigm, but point towards a significant contribution of the galactic disc to the obscuration of the nuclear region. This is also consistent with the observed preference of Sy1 nuclei to be hosted by ellipticals, that is, the dusty disc of spiral hosts contributes to the obscuration of the broad-line region, and thus relatively more ellipticals are expected to appear hosting Sy1 nuclei.