323,009 research outputs found
Recensione: S. Bonacchi: die Gestalt der Dichtung. Der Einfluss der Gestalttheorie auf das Werk Robert Musils
No full textRecensione del testo di Silvia Bonacchi
Bevan, A., Northover, P., Bray, P., Bonacchi, C., Colledge, S., Crellin, R., Gwilt, A., Hamilton, H., Hart, P., Kaleta, R., Keinan-Schoonbaert, A., Knight, M., Laws, K., Lodwick, M., Martinón-Torres, M., Needham, S., O'Connor, B., Perrucchetti, L., Pett, D., Wexler, J., Wilkin, N. (2024) A Catalogue of British Bronze Age Axeheads [data-set]. York: Archaeology Data Service [distributor] https://doi.org/10.5284/1122315
No full textThis archive provides a dataset of database data from a dataset list of roughly 8000 Bronze Age British axeheads, alongside associated elemental analyses, isotopic measurements and radiocarbon dates. It integrates several major existing data collection efforts and published catalogues, whilst also providing a basic typology.Bevan, A., Northover, P., Bray, P., Bonacchi, C., Colledge, S., Crellin, R., Gwilt, A., Hamilton, H., Hart, P., Kaleta, R., Keinan-Schoonbaert, A., Knight, M., Laws, K., Lodwick, M., Martinón-Torres, M., Needham, S., O'Connor, B., Perrucchetti, L., Pett, D., Wexler, J., Wilkin, N. (2024) A Catalogue of British Bronze Age Axeheads [data-set]. York: Archaeology Data Service [distributor] https://doi.org/10.5284/112231
Copper and silver nanowires for CO2 electroreduction
No full textCopper and silver nanowires have been extensively investigated as the next generation of transparent conductive electrodes (TCEs) due to their ability to form percolating networks. Recently, they have been exploited as electrocatalysts for CO2 reduction. In this review, we present the most recent advances in this field summarizing different strategies used for the synthesis and functionalization/activation of copper and silver nanowires, as well as, the state of the art of their electrochemical performance with particular emphasis on the effect of the nanowire morphology. Novel perspectives for the development of highly efficient, selective, and stable electrocatalysts for CO2 reduction arise from the translation of NW-based TCEs in this challenging field
The New Hague “Judgments” Convention: The EU’s Gamble in Strenghthening Ties with Third Countries
No full textTonpsychologische Gestalten. Pieces of a Theory of Tonal Fusion by J.F. Herbart and C. Stumpf
No full textBoth Herbart and Stumpf conceived a psychological theory of fusion and applied it to the musical sound. Nevertheless, their conceptions are usually considered as basically opposite, contrasting an atomistic (Herbart) to a “Gestalt” view (Stumpf); this was also Stumpf’s conviction. Analysing their psychologies of sound in detail, however, the roles should be reversed, because elementalistic components are to be found in Stumpf’s chord analysis, where Herbart seems to carry out a more coherent whole survey. Moreover, Herbart’s philosophy turns out to be much more than an abstract monadology, dropping relevant hints towards a Gestalt approach both in theoretical and in aesthetic domain – and even in the overall structure of his system
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)
Does off-pump coronary revascularization reduce the release of the cerebral markers, S-100beta and NSE?
No full textAbstract
OBJECTIVES:
The aims of this study were to (1) compare the release of S-100 beta and NSE in off-pump coronary artery bypass grafting (CABG) versus on-pump surgery; (2) investigate whether the S-100 beta and NSE serum concentrations correlate with cardiopulmonary bypass (CPB) duration.
MATERIALS AND METHODS:
Between October 2002 and May 2004, 42 patients undergoing first time CABG surgery were enrolled in the study. The exclusion criteria were: LVEF70 years, previous myocardial infarction, REDO surgery, the presence of valvular heart disease and/or cerebrovascular disease, abnormal preoperative carotid vessels angiography, coronary artery disease involving the distal circumflex artery, renal dysfunction, coagulopathy. The patients were randomly assigned either to undergo on-pump CABG surgery [group I, n=24 patients] or off-pump CABG [group II, n=18 patients]. Blood was not re-transfused from the cardiotomy suction. All patients presenting haemolysis were excluded from the study.
RESULTS:
The preoperative S-100beta was 0.13+/-0.08 (microg/l) and NSE 7+/-1.5 (microg/l) in group I and 0.12+/-0.1 (microg/l) and 6.9+/-2.7 (microg/l), respectively in group II. Six hours after the surgery, S-100beta in patients of group I reached a maximum level of 1.38+/-0.4 (microg/l) and NSE of 17.7+/-6.5 (microg/l) compared to 0.5+/-0.11 (microg/l) [S-100B] and NSE 8.6+/-4.2 (microg/l) in group II (p=0.001). Three (12%) patients in group I and none (0%) in group II suffered postoperative delirium, p=0.247. No strokes occurred linear regression analysis revealed a strong correlation between cardiopulmonary bypass duration and S-100beta and NSE peak levels, p<0.0021 (r(2)=0.36) and p<0.0001 (r=0.81), respectively.
CONCLUSION:
Coronary artery bypass surgery with CPB causes a significantly greater increase in NSE and S-100beta serum levels than off-pump surgery and correlates with CPB duration
Self-organizing core-shell nanostructures: Spontaneous accumulation of dye in the core of doped silica nanoparticles
No full textThe process of formation of silica nanoparticles doped with a newly synthesized pyrene derivative has been investigated by means of fluorescence steady-state and time-resolved spectroscopy. The changes in the photophysical properties of the fluorophore were correlated to the increase of the nanoparticles hydrodynamic volume measured via dynamic light scattering (DLS) allowing us to determine the radial profile of the concentration of the dye. Experiments performed at a '' low '' degree of doping show that the fluorophore is almost completely included considerably before the end of the nanoparticles growth, allowing us to identify a self-organizing core-shell substructure. A strong enhancement of the fluorescence of the dye and a corresponding increase of its excited-state lifetime was observed upon its inclusion as a result of the shielding effect from molecular oxygen due to the silica matrix, a situation confirmed by the absence of the oxygen singlet emission in the near-infrared luminescence spectra. In the case of '' high '' loading, on the other hand, a heavily doped core showing an excimeric-like emission is first formed. Further growth leads to the formation of layers where the concentration of dye gradually decreases and the monomeric emission becomes relevant. The effect of the degree of doping on the kinetics of growth is also reported. At both concentration regimes, ultrafiltration experiments revealed the complete inclusion of the dye molecules. The average number of dye molecule per nanoparticles was also determined
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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