123,545 research outputs found
Sanders-Warr Clinic, Memphis, 1923
No full textClinic of Drs. R.L. Sanders and Otie S. Warr at 20 N. Dunlap Street, Memphis, Tennessee, 1923. Photographer: Bluff City Engraving Company, Memphis.https://digitalcommons.memphis.edu/speccoll-mss-20thcenturyphoto3/1325/thumbnail.jp
Douze questions sur le chômage et la santé
No full textWarr Peter. Douze questions sur le chômage et la santé. In: Bulletin de psychologie, tome 41 n°383, 1987. Aspects de la psychologie anglaise contemporaine. pp. 175-185
The role of Fe on the formation and diagenesis of interstratified glauconite-smectite and illite-smectite: A case study of Upper Cretaceous shallow-water carbonates
No full textThe widespread formation of interstratified glauconite-smectite (Gl-S) and illite-smectite (I-S) in modern and ancient diagenetic settings records the physicochemical conditions prevailing during clay mineral authigenesis. To date, however, significant gaps in our knowledge persist in respect to the influence of interstitial solution chemistry, temperature and reaction kinetics on the evolution of composition, mineralogy and microstructure of Gl-S and I-S. Herein, we present a study on the reaction mechanisms and the physicochemical conditions that led to the precipitation of early diagenetic Gl-S and late diagenetic I-S on a stable carbonate platform during the Cenomanian at Langenstein in the Northern German Basin. The texture and the K-Ar age (95.0 +/- 1.8 Ma) of the green glauconitized grains revealed that green-clay authigenesis progressed in initially organic-rich, semi-confined micromilieus, ie., in fecal pellets and in foraminifera, close to the sediment-seawater interface. The composition of Gl-S varied in the range (K0.20-0.74+Na0-0.10+Ca0-0.052+)(0.28-0.75) (Fe0.63- 1.203+Fe0.08-0.242+Al0.19-0.973+ Mg-0.29-0.52(2+))(2.01-2.12) [Al0.09-0.353+Si3.65-3.914+O10](OH2), and depended on the rate of aqueous Fe2+ and K+ ion diffusion, the micromilieu of glauconitization and on the bulk sedimentation rate. The mineralogical, microstructural and chemical changes of the ongoing Gl-S products revealed the following reaction for green-clay authigenesis at Langenstein: Fe(III)-smectite reacted with monosilicic acid, goethite and aqueous K+, Mg2+ and Fe2+ to form glauconite and aqueous Na+, Ca2+ and H+ ions. This process considers complex mineral transformations commonly associated with glauconitization, such as early diagenetic oxidation of organic matter and microbial-catalyzed dissolution of Fe-(oxy) hydroxides, carbonates and detrital silicates. In contrast, the K-Ar age of I-S (68.0 +/- 1.6Ma) and its compositional variability, (K0.29-0.45+Na0-0.10+Ca0-0.062+)(0.30-0.55) (Fe0.16-0.293+Fe0-0.102+Al1.37-1.683+Mg0.18-0.432+)(2.00-2.12) [Al0.17-0.393+Si3.61-3.834+O10](OH2), indicate a burial diagenetic origin for this mineral phase, rather than transformation of illitic clays into I-S during weathering under warm and humid climatic conditions. The results from kinetic modelling support a diagenetic origin of I-S (50-60% I layers and 50-40%S layers) and imply its formation by the replacement of pre-existing K-feldspar at high pore-fluid activity K/Na ratios and at low Fe2+ concentrations. We propose that the substitution of Al3+ for Fe3+, Fe2+ and Mg2+ in the octahedral sheet shifts the stability field of the kaolinite-Fe-Al-Mg-smectite-Fe-Al-Mg-illite (or glauconite) triple point to much lower monosilicic acid activities, and stabilizes the I-S (or Gl-S) structure. This reaction supports the idea that the (bio) availability of Fe is the rate-limiting factor for glauconitization, which is not the case for the diagenetic growth of I-S, whereby the porewater Fe2+ concentration may be limited by the competing formation of Fe-(oxy) hydroxides and/or Fesulfides. (C) 2017 Elsevier B.V. All rights reserved.NAWI Graz [F-AF7-221-01
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
No full textAbstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
Spatiotemporal Characterization of Smectite‐to‐Illite Diagenesis in the Nankai Trough Accretionary Prism Revealed by Samples From 3 km Below Seafloor
No full textAgriculture's decline in Indonesia : supply or demand determined
No full textAgriculture's share in an economy invariably declines as per capita income rises and as the economy develops. The literature on its causes has focused on the relative price effects arising from demand factors--especially Engel's Law (that the proportion of income spent on food declines as incomes rise)--rather than on such supply-side influences as changes in relative factor endowments and different rates of technical change. Engel's Law is convincing at the global level but it does not explain why agriculture's share should decline sharply in small open economies that experience rapid economic growth. A simple structural model of the transformation of the Indonesian economy, applying the Error Correction Mechanism to capture the dynamics resulting from disequilibria and costs of adjustment is developed. The authors develop an econometric model of the economy's supply side so they can explain agriculture's decline by the three theoretical factors: relative price changes, technical change, and factor accumulation. Based on the model's results, the authors conclude that the decline in the relative price of agricultural output contributed relatively little to the decline in agriculture's share. Technical change actually had a positive effect on agriculture's share, retarding the pressures for a decline in its share over time. By far the most important influence appears to have been the rapid accumulation of capital relative to labor over the period studied (1960-87).Economic Theory&Research,Environmental Economics&Policies,Agricultural Knowledge&Information Systems,Economic Growth,Inequality
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
K–Ar age determinations on the fine fractions of clay mineral ‘Crystallinity Index Standards’ from the Palaeozoic mudrocks of southwest England
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