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81.
Hacking the citizenry?: Personality profiling, ‘big data’ and the election of Donald Trump
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Roberto J. González 《Anthropology today》2017,33(3):9-12
This article examines the reported use of ‘big data’ analysis by Cambridge Analytica in support of Donald Trump's presidential campaign. It investigates the transformations enveloping the overlapping worlds of politics, technology and social science. In particular, it critically reviews new developments in the field of psychometrics that have enabled researchers to harvest vast quantities of data by accessing social media platforms such as Facebook. The article also assesses claims that predictive analytics and ‘psychographics’ led to Trump's unexpected victory. The article concludes with a broader discussion about the state of political discourse in an era of digital communication. 相似文献
82.
We present a preview of our work for a critical anthology of medieval and pre-medieval fantastic folklore narratives about animals in the human body. These are generally referred to among English-speaking scholars as ‘bosom serpent’ legends. In particular, we provide here two of the most ancient texts from the section of the anthology on medieval Scandinavia. We also offer two little-known narratives, a medieval Latin saint’s life and one from the Byzantine Greek world. 相似文献
83.
Roberto Spreafico Silvia De Biasi Laura Vitellaro-Zuccarello 《Journal of the history of the neurosciences》2013,22(2):179-185
Theories and data do not always fit and sometimes are sources of conflicts among scientists. This is the case of a morphological structure, the perineuronal net, which was denied on the basis of an ideological conflict between two giants of neurosciences: Camillo Golgi and Santiago Ramón y Cajal. The perineuronal net is a reticular structure enveloping many neurons. Originally reported by Golgi in 1893 and 1898 and confirmed by several authors before the turn of the century, the perineuronal net was used by Golgi to support the reticular theory of the organization of the nervous system. Ramón y Cajal, the paladin of the neuronal theory who had also observed this anatomical structure, denied its existence suggesting that it was a fixation artifact. After Cajal's statements, only a few Italian scientists continued to work in this field, and after the 1930s the perineuronal net was forgotten. Only the recent advances in histochemical and immunocytochemical technology confirmed the existence of this structure opening new fields in functional neuroanatomy and neuropathology. 相似文献
84.
Roberto Giustetto Giulia Berruto Eliano Diana Emanuele Costa 《Journal of archaeological science》2013
Prehistoric pottery decorated with incisions or impressions filled with white and seldom coloured inlays is well documented in the archaeological literature, but the related in-depth archaeometric studies are sporadic. 43 decorated ceramic shards, dating from the Neolithic to the Bronze Age, and an Iron Age fibula from the archaeological site of Castello di Annone (Piedmont, North-Western Italy) were analysed with FTIR, Raman and XRPD for characterization of the ornamental pigments forming these inlays. Few white components were used as fillers, namely talc and bone ash (hydroxyapatite – Bone White), often as a mixture and seldom accompanied by other pigments (i.e. kaolinite and presumably secondary calcite). Comparison with freshly-heated biogenic hydroxyapatite proved that ancient Bone White pigment was calcined at about 900 °C. Such a process was kept separate from pottery firing as these white mixtures show absence of talc degradation by-products and sporadic presence of kaolinite, implying these ceramics were decorated only after firing in furnace. Actual presence of fluorapatite in bone ash could allow dating with the Fluorine Method, but lack of fluorine detection with SEM-EDS causes such an attempt to be impracticable so far. A pilot comparative study with a restricted but representative group (11) of coeval finds from other sites of Piedmont suggests that while recurrence of talc prevails in Castello di Annone from the Neolithic throughout the Bronze age, massive use of bone ash (Bone White) becomes widespread in the close Iron Age settlements, possibly consequent to a more efficient handling of its production technology. 相似文献
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This paper examines the level and evolution of polarization in regional per capita income in the European Union between 1977 and 1999. In this analysis, non-parametric estimation techniques are combined with the calculation of various polarization measures. The results obtained suggest a decrease in regional polarization in the European context during the period analysed, as a consequence of various factors, at times working in opposite directions. The findings also reveal the existence of discrepancies between the evolution of polarization and regional inequality. Finally, the analysis carried out highlights the importance of the role played by the national component and the spatial dimension in the formation of homogeneous groups of regions linked by similar development levels in the distribution under study. 相似文献
88.
Esteban Álvarez-Fernández Roberto Ontañón-Peredo José Molares-Vila 《Journal of archaeological science》2010
Barnacles of the species Pollicipes pollicipes are crustaceans that nowadays live on wave-beaten rocky substrates in the intertidal and low-shore zones on the coasts of Atlantic Europe and North Africa. At the present time, the exploitation of this species is profitable, especially in northern Spain where this sea-food is highly valued, as well as expensive. However, the gathering of this resource, which is carried out manually by the percebeiros or “goose barnacle fishers” entails great risks. 相似文献
89.
William D. Middleton Luis Barba Alessandra Pecci James H. Burton Agustin Ortiz Laura Salvini Roberto Rodriguez Suárez 《Journal of Archaeological Method and Theory》2010,17(3):183-208
The identification of chemical activity residues on archaeological surfaces requires the analysis of large numbers of samples,
which can be costly and time consuming. Researchers wishing to apply sediment chemistry often are confronted with a dilemma
of which technique to use and how to accommodate sediment chemistry into their budget. We propose an approach to the identification
of chemical activity residues in which semiquantitative spot tests, which are cheap, quick, and easy to apply, are employed
as an initial phase of analysis in order to leverage the results of more time-consuming and costly instrumental techniques.
Three examples that pair spot tests with gas chromatography-mass spectroscopy and inductively coupled plasma-optical emission
spectrometry analysis show that spot tests successfully identify areas of interest. This approach can save both time and research
funds. 相似文献
90.
Denisse L. Argote Andrés Tejero René E. Chávez Pedro A. López Roberto Bravo 《Journal of archaeological science》2009
In Archaeology, geophysical methods had been applied usually in a qualitative form, limited only to the use of filters that enhance the data display. The main objective in this work is the implementation of a modelling technique that allows us to reconstruct the geometry of buried bodies and the determination of their depths. This is done by means of the estimation of the magnetic moments of archaeological objects using a three-dimensional mesh of individual magnetic dipoles using the least squares method and the singular value decomposition of a weighted matrix to solve the linear problem. The distribution and shape of the underlying archaeological remains can be inferred. This methodology was applied to an archaeological site called Los Teteles de Ocotitla, in the state of Tlaxcala, Mexico. A high-resolution magnetic prospection was carried out in three selected areas (terraces). The most important total field anomalies found on each area were inverted, obtaining results that were corroborated by archaeological excavations. This investigation demonstrates the potential of quantitative geophysical methods for the characterization of archaeological structures, in extension and in depth. 相似文献