scholarly journals NEW APPROACH IN AN EMBLEMATIC SITE: THE PALEOLITHIC CAVE OF LA MOUTHE (DORDOGNE, FRANCE)

Author(s):  
S. Petrognani

Our project for the cave of La Mouthe incorporates a current dynamic of rereading rock art sites, and developing new problems of analysis. The knowledge acquired since the 1990s on archaeological data, with the discovery of major sites for prehistoric art, as well as methodological, with advances in radiocarbon dating, microanalyses of materials and context, or 3D digitization, have profoundly renewed our perception of prehistoric art. In the face of these new data, the re-reading of previously studied sites brings many new data, and a valuable re-reading of the graphic contexts of Paleolithic art. Marsoulas, La Baume-Latrone, the Bernoux fully materialize this dynamic. Our approach therefore aims to place the cave of La Mouthe in the context of its chrono-cultural context. Updating the inventory of its representations through a prospecting operation on the walls and rock art surveys is necessary but insufficient in this overall archaeological approach. The review of the exhumed material, the control of the various interventions past in situ, and a better consideration of the karstological and geomorphological problems will allow in the coming years to put in place a decisive argument with a view to carry out possible new internal or external excavations.

Author(s):  
Ivone de Lourdes Oliveira ◽  
Fábia Pereira Lima ◽  
Isaura Mourão Generoso

To problematise the reference models of communication and strategy adopted by organisations, especially in mediated society, requires outlining a new approach to strategic communication. A conceptual reflection is used for this purpose, beginning with a literature review of the scientific production of Brazilian authors in this field and Foucauldian ideas of discursive practices, to understand the enunciative function of the utterances present in organisational discourses. Considering the implications of mediatisation in organisational communication, the goal is to achieve strategy as a social practice, articulated to the socio-political-cultural context. In order to delimit its empirical scope and to highlight the strength of interactions in the mediatised space and symbolic confrontation, the chapter fosters comparison between the different conceptual notions developed in the face of empirical observations about the positioning of organisations during the COVID-19 pandemic in Brazil. The analysis shows that organisations need to understand, in an interactional and complex manner, communication processes in mediatisation and their relations with individual and collective subjects, which shape the meanings, discursive practices, and organisational strategies. If, in this scenario, the organisational discourses lie beyond the control of organisations, they should not be neglected, either as products of a context that shapes them, nor as modulating agents of patterns that disturb or strengthen the contemporary social structure.


Author(s):  
L. E. Murr ◽  
G. Wong

Palladium single-crystal films have been prepared by Matthews in ultra-high vacuum by evaporation onto (001) NaCl substrates cleaved in-situ, and maintained at ∼ 350° C. Murr has also produced large-grained and single-crystal Pd films by high-rate evaporation onto (001) NaCl air-cleaved substrates at 350°C. In the present work, very large (∼ 3cm2), continuous single-crystal films of Pd have been prepared by flash evaporation onto air-cleaved (001) NaCl substrates at temperatures at or below 250°C. Evaporation rates estimated to be ≧ 2000 Å/sec, were obtained by effectively short-circuiting 1 mil tungsten evaporation boats in a self-regulating system which maintained an optimum load current of approximately 90 amperes; corresponding to a current density through the boat of ∼ 4 × 104 amperes/cm2.


Author(s):  
Naomi A. Weiss

The Music of Tragedy offers a new approach to the study of classical Greek theater by examining the use of musical language, imagery, and performance in the late work of Euripides. Drawing on the ancient conception of mousikē, in which words, song, dance, and instrumental accompaniment were closely linked, Naomi Weiss emphasizes the interplay of performance and imagination—the connection between the chorus’s own live singing and dancing in the theater and the images of music-making that frequently appear in their songs. Through detailed readings of four plays, she argues that the mousikē referred to and imagined in these plays is central to the progression of the dramatic action and to ancient audiences’ experiences of tragedy itself. She situates Euripides’s experimentation with the dramaturgical effects of mousikē within a broader cultural context, and in doing so, she shows how he both continues the practices of his tragic predecessors and also departs from them, reinventing traditional lyric styles and motifs for the tragic stage.


2021 ◽  
Author(s):  
Luís Cordeiro-Rodrigues ◽  
Thaddeus Metz

Abstract The COVID-19 pandemic has brought significant challenges to healthcare systems worldwide, and in Africa, given the lack of resources, they are likely to be even more acute. The usefulness of Traditional African Healers in helping to mitigate the effects of pandemic has been neglected. We argue from an ethical perspective that these healers can and should have an important role in informing and guiding local communities in Africa on how to prevent the spread of COVID-19. Particularly, we argue not only that much of the philosophy underlying Traditional African Medicine is adequate and compatible with preventive measures for COVID-19, but also that Traditional African Healers have some unique cultural capital for influencing and enforcing such preventive measures. The paper therefore suggests that not only given the cultural context of Africa where Traditional African Healers have a special role, but also because of the normative strength of the Afro-communitarian philosophy that informs it, there are good ethical reasons to endorse policies that involve Traditional Healers in the fight against COVID-19. We also maintain that concerns about Traditional African Healers objectionably violating patient confidentiality or being paternalistic are much weaker in the face of COVID-19.


Author(s):  
M Mazhar Celikoyar ◽  
Michael F Perez ◽  
M Ilhan Akbas ◽  
Oguzhan Topsakal

Abstract Background Facial features and measurements are utilized to analyze patients’ faces for various reasons, including surgical planning, scientific communications, patient-surgeon communications, and post-surgery evaluations. Objectives There are numerous descriptions regarding these features and measurements scattered throughout the literature and we did not encounter a current compilation of these parameters in the medical literature. Methods A narrative literature review of the published medical literature for facial measurements used for facial analysis in rhinoplasty was done through the electronic databases MEDLINE/PubMed and Google Scholar, along with a citation search. Results A total of 61 facial features were identified. 45 points (25 bilateral, 20 unilateral), five lines (three bilateral, two unilateral), eight planes, and three areas. A total of 122 measurements were identified: 48 distances (6 bilateral, 42 unilateral), 57 angles (13 bilateral, 44 unilateral), and 17 ratios. Supplemental Figures were created to depict all features and measurements using either a frontal, lateral or basal view of the face. Conclusions This paper provides the most comprehensive and current compilation of facial measurements to date. We believe this compilation will guide further developments (methodologies and software tools) for analyzing nasal structures and assessing the objective outcomes of facial surgeries, in particular rhinoplasty. Moreover, it will improve the communication as a reference for facial measurements of facial surface anthropometry, in particular rhinoplasty.


Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 204
Author(s):  
Isabel M. Guijarro ◽  
Moisés Garcés ◽  
Pol Andrés-Benito ◽  
Belén Marín ◽  
Alicia Otero ◽  
...  

The actual role of prion protein-induced glial activation and subsequent cytokine secretion during prion diseases is still incompletely understood. The overall aim of this study is to assess the effect of an anti-inflammatory treatment with dexamethasone on different cytokines released by neuroglial cells that are potentially related to neuroinflammation in natural scrapie. This study emphasizes the complex interactions existent among several pleiotropic neuromodulator peptides and provides a global approach to clarify neuroinflammatory processes in prion diseases. Additionally, an impairment of communication between microglial and astroglial populations mediated by cytokines, mainly IL-1, is suggested. The main novelty of this study is that it is the first one assessing in situ neuroinflammatory activity in relation to chronic anti-inflammatory therapy, gaining relevance because it is based on a natural model. The cytokine profile data would suggest the activation of some neurotoxicity-associated route. Consequently, targeting such a pathway might be a new approach to modify the damaging effects of neuroinflammation.


2021 ◽  
Vol 10 (6) ◽  
pp. 357
Author(s):  
Niccolò Iandelli ◽  
Massimo Coli ◽  
Tessa Donigaglia ◽  
Anna Livia Ciuffreda

The conservation of a primary importance historical building requires organization, management, continuous updating, comparison, and visualization of a large amount of data of different nature and origin. In relation to these aspects the use of a GIS brings various advantages including single and univocal management of the entire amount of existing data in a relational, dynamic, updatable and queryable way. The integration of a mobile solution permits the updating of the dataset and checking on site all information. The workflow presented uses opensource solutions, desktop and mobile, which allows the creation of an unconventional lithological Field Mapping activity: starting from photo interpretation and in situ survey, all the coating materials (stone, etc.) of some monuments of primary historical and cultural interest have been mapped (i.e., Duomo di Firenze, Duomo di Prato). The product can be considered as a lithological cartography, vertically oriented, processed by field surveys, geognostic surveys and photo interpretation. All combined to create a “lithological” mapping of the coatings of the various monuments; the advantage is a new approach for conservation and restoration of Cultural Heritage. The proposed workflow involves a mobile solution, opensource, that allows the verification and management of the database in the field.


2019 ◽  
Vol 7 ◽  
Author(s):  
Jan-Lukas Tirpitz ◽  
Denis Pöhler ◽  
Nicole Bobrowski ◽  
Bruce Christenson ◽  
Julian Rüdiger ◽  
...  

1987 ◽  
Vol 115 ◽  
Author(s):  
W. E. Rhoden ◽  
J. V. Maskowitz ◽  
D. R. Kitchen ◽  
R. E. Omlor ◽  
P. F. Lloyd

IntroductionElectromigration in aluminum films has been identified as an increasing concern for integrated circuit reliability. Electromigration is the mass transport of atoms in a conductor under a current stress. Electromigration occurs in conductors experiencing current densities greater than 105 A/cm2 and is accelerated by high temperature. The damage to aluminum films manifests itself in the formation of voids, hillocks and whiskers along the conductor. This paper presents a test vehicle preparation procedure which can be used to investigate electromigration.


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