488 research outputs found
Perniola egizio. Del buon uso dell'enigma in filosofia
No full textL’articolo esplora il ruolo strutturale della riflessione sull’estetica dell'Antico Egitto, così come delle metafore e delle similitudini legate all’Egitto, all’interno dell’opera di Mario Perniola. L’autore sostiene che la concezione dell’Egitto di Perniola si pone come un’alternativa aperta rispetto al modo tradizionale, platonico, cristiano ed hegeliano, di trattare la cultura egizia come una sorta di preistoria della civiltà occidentale. Al contrario, l’arte egizia è considerata da Perniola come il punto di partenza di una corrente permanente all’interno dell’estetica occidentale, quindi come un aspetto dell’estetica dell'arte contemporanea stessa e della società (momento egiziano). L’articolo analizza quindi la caratterizzazione di una serie di fenomeni estetici contemporanei (il neo-antico, il sex appeal dell'inorganico, ecc.) visti attraverso le lenti della loro dimensione "egizia" e mediante il significato filosofico dell’enigma.Perniola, an Egyptian. The good use of the enigma in philosophy This article explores the structural role of the reflection on the aesthetics of Ancient Egypt, as well as of Egypt-related metaphors and similes, within the work of Mario Perniola. The author argues that Perniola’s conception of Egypt stands as an open alternative to the traditional Platonic, Christian and Hegelian way of dealing with it as a kind of pre-history of Western civilization. On the contrary, Egyptian art is considered by Perniola as the starting point of a permanent current within Western aesthetics, therefore as an aspect of the aesthetics of contemporary art itself and society (Egyptian moment). The article thus analyzes Perniola’s characterization of an array of contemporary aesthetic phenomena (the neo-ancient, the sex appeal of the inorganic, etc.) through the lenses of their “Egyptian” dimension and philosophical meaning of the enigma
Perniola, an Egyptian. The good use of the enigma in philosophy
No full textThis article explores the structural role of the reflection on the aesthetics of Ancient Egypt, as well as of Egypt-related metaphors and similes, within the work of Mario Perniola. The author argues that Perniola’s conception of Egypt stands as an open alternative to the traditional Platonic, Christian and Hegelian way of dealing with it as a kind of pre-history of Western civilization. On the contrary, Egyptian art is considered by Perniola as the starting point of a permanent current within Western aesthetics, therefore as an aspect of the aesthetics of contemporary art itself and society. The article thus analyses Perniola’s characterization of an array of contemporary aesthetic phenomena through the lenses of their “Egyptian” dimension and philosophical meaning of the enigma
Modificazioni del flusso mestruale e dei parametri della crasi ematica in donne portatrici del dispositivo intrauterino medicato al rame o del sistema intrauterino liberante levonorgestrel: Studio prospettico di otto anni
No full textUna filosofia dell’intermedio. Ricordo di Mario Perniola
No full textThe article aims at remembering Mario Perniola, died last year, philosopher and author of a large number of books translated all over the world, devoted especially to the field of aesthetics, whose research could be intended as an open reflection dealing with not only the traditional topics of the discipline, but with the broad and differentiated phenomena involving the sphere of perception and feeling, operating in the world of communication and media, in society, politics, religion, and arts. The distinctive feature of his thought is here identified in his extraordinary ability to put in contact different and distant authors, concepts and things and at the same time to separate them, giving rise to the development of subtle, smart and penetrating concepts capable of reading our time. Thus his research is here defined as a “philosophy of between”, which strives to think of the intermediate state that separates but also that space connecting; a philosophy that rejects any apocalyptic position but at the same time avoids surrendering to the society of spectacle and communication in which we live
Capitolo 7. Gli effetti combinati della CO2, temperatura, ozono (O3) e raggi UV-B sulle colture.
No full textHormonal replacement therapy and evaluation of intrauterine pathology in postmenopausal women: a ten-year study.
No full textBackground: To evaluate the role of hormonal replacement therapy (HRT) in determining: a) abnormal uterine bleeding (AUB); b) increased endometrial thickness at transvaginal sonography (TVS); c) the correct indication for outpatient hysteroscopy (HS) and biopsy in diagnosing intrauterine pathology. Methods: Between April 1991 and April 2001 a group of 3,400 postmenopausal women was referred to the Department of Obstetrics and Gynecology of Rome University "La Sapienza"; 16.7% of them had received HRT. 587 out of the 3,400 women were recruited for a comparative study, including four groups. To assess statistical significance of HRT in determining AUB, and/or endometrial thickness related to malignant disease the chi-square test was used; p < 0.05 was considered significant. Histology was considered the true result (control). Results: An increase in the endometrial thickness occurred significantly more often in women on HRT (p < 0.03); as well as the percentage of AUB (p < 0.0001). No difference in the incidence of endometrial adenocarcinoma was reported between the HRT and the non HRT groups. Conclusions: In postmenopausal women using HRT we can confirm that a higher incidence of signs (AUB, endometrial thickness ≥ 5 mm) does not coincide with a higher incidence of malignant pathology. The data obtained from the recruited patients was arranged and evaluated by the most suitable methods for screening endometrial adenocarcinoma. According to our experience, we believe a cut-off point of 8 mm to be significant (p < 0.001) to perform an hysteroscopy and biopsy except for asymptomatic patients on HRT
Effects of irrigation regime, leaf biostimulant application and nitrogen rate on gas exchange parameters of wild rocket
No full textBiostimulants can have physiological effects on plants that improve yield,
quality, and nutrients use efficiency. The mechanisms activated by these compounds
are unknown and are difficult to identify, because the most part of these substances is
composed mainly by plant extracts, algae extracts, amino acids, vitamins and mineral
nutrients. Therefore, their effect is the result of many components that may work
synergistically. In the recent years, the biostimulants are gaining importance for their
possible use in organic and sustainable agriculture. The results of a study conducted
to assess the interactive effects of irrigation regime, leaf application of a biostimulant
based on brown seaweed extract and nitrogen rate on leaf net photosynthesis (A),
transpiration (T), stomatal conductance (gs), internal CO2 concentration (Ci) and
intrinsic water use efficiency (WUEi), are reported. The research was carried out
during November-February 2016-2017, under greenhouse located in southern Italy.
Two irrigation regimes (restoration of 100 and 50% of crop evapotranspiration,
respectively named I100 and I50), two leaf biostimulant application (Bioproject SM23-
BioKimia® International S.r.l., and a control without biostimulant, respectively named
B and C) and three nitrogen rates (0, 75 and 150 kg ha-1 N, respectively named N0, N1
and N2) on wild rocket [Diplotaxis tenuifolia (L.) DC.] grown in pots, were compared. A
split plot experimental design with three reps was utilized. All treatments affected gas
exchange parameters. I50 in respect to I100 reduced A, T and gs, but improved WUEi, and
the differences were raised with increasing soil water content gap between
treatments. N rate increase improved A but, in condition of high water stress, the
higher N rate was detrimental. Biostimulant improved A by 8.9% and WUEi by 7.5%,
and the positive effect was greater in water shortage conditions. Positive effects of
Bioproject SM23® on A and WUEi suggest its use to improve the performances of wild
rocket and mitigate harmful effects of water stress
The catastrophic 1456 multiple earthquake: CFF test of interaction among deep oblique strike-slip faults in southern Italy
No full textIn December 1456-January 1457 a major earthquake sequence took place across the central and southern Apennines (southern Italy, Calabrian Arc excluded), including southeastern Apulia. A recent re-evaluation of the (a) revised damage pattern for this multiple earthquake, (b) deeper seismicity of the southern Apennines – Adriatic foreland interface and (c) deep-seated regional E-W structures, led to the identification of at least four seismogenic sources, responsible for the main sub-events of the multiple 1456 earthquake.
Based on various seismological, macroseismic and tectonic constraints, these causative faults are thought to exhibit an oblique right-lateral motion along fault segments roughly E-W oriented. Such segments are portions of well-known inherited regional E-W trending shear zones (like the Molise-Gondola shear zone), at various latitudes between (from north to south) the Maiella Mts. and the Vulture volcanic complex. This system would therefore imply the cascade reactivation of such shear zones favorably oriented with respect to present stress field, with a transtensional mechanism. More than one catastrophic historical earthquake that occurred in southern Italy suggests the nearly simultaneous
activation of multiple sources across widely spaced (+/- 30 km) portions of independent E-W faults. Being the strongest (by magnitude and damage area) among these major earthquakes, the 1456 sequence can be considered as a template for such mechanism of multiple activation of distant sources yet within a short time window.
This hypothesis invokes a possible stress interaction between multiple sources falling within neighboring domains. We investigated Coulomb stress changes related to the main sub-events of the multiple 1456 earthquake to analyze fault interaction and stress transfer mechanisms. An evident positive correlation between the calculated Coulomb stress increase and two major seismogenic sources is found. Therefore, the spatial redistribution and enhancement of static stress caused by the stronger events may promote rupture on adjacent faults that are close to the failure threshold. A more general case may be considered imposing a pre-existing stress field or assuming different values for the friction coefficient.
To the extents of present knowledge and investigation, these E-W trending earthquake sources are active between ca. 10 and 20 km at depth in the sector of the southern Apennines east of the chain axis, that is to say in the seismogenic macroregion bounded by the thrustbelt (to the west) and by the Apulian foreland (to the east). The stress patterns caused by these faults are consistent with the large NW-SE trending pure extensional sources found along the southern Apennines axis.UnpublishedVienna International Center
Vienna
Austriaope
The catastrophic 1456 multiple earthquake: CFF test of interaction among deep oblique strike-slip faults in southern Italy
No full textIn December 1456-January 1457 a major earthquake sequence took place across the central and southern Apennines (southern Italy, Calabrian Arc excluded), including southeastern Apulia. A recent re-evaluation of the (a) revised damage pattern for this multiple earthquake, (b) deeper seismicity of the southern Apennines – Adriatic foreland interface and (c) deep-seated regional E-W structures, led to the identification of at least four seismogenic sources, responsible for the main sub-events of the multiple 1456 earthquake.
Based on various seismological, macroseismic and tectonic constraints, these causative faults are thought to exhibit an oblique right-lateral motion along fault segments roughly E-W oriented. Such segments are portions of well-known inherited regional E-W trending shear zones (like the Molise-Gondola shear zone), at various latitudes between (from north to south) the Maiella Mts. and the Vulture volcanic complex. This system would therefore imply the cascade reactivation of such shear zones favorably oriented with respect to present stress field, with a transtensional mechanism. More than one catastrophic historical earthquake that occurred in southern Italy suggests the nearly simultaneous
activation of multiple sources across widely spaced (+/- 30 km) portions of independent E-W faults. Being the strongest (by magnitude and damage area) among these major earthquakes, the 1456 sequence can be considered as a template for such mechanism of multiple activation of distant sources yet within a short time window.
This hypothesis invokes a possible stress interaction between multiple sources falling within neighboring domains. We investigated Coulomb stress changes related to the main sub-events of the multiple 1456 earthquake to analyze fault interaction and stress transfer mechanisms. An evident positive correlation between the calculated Coulomb stress increase and two major seismogenic sources is found. Therefore, the spatial redistribution and enhancement of static stress caused by the stronger events may promote rupture on adjacent faults that are close to the failure threshold. A more general case may be considered imposing a pre-existing stress field or assuming different values for the friction coefficient.
To the extents of present knowledge and investigation, these E-W trending earthquake sources are active between ca. 10 and 20 km at depth in the sector of the southern Apennines east of the chain axis, that is to say in the seismogenic macroregion bounded by the thrustbelt (to the west) and by the Apulian foreland (to the east). The stress patterns caused by these faults are consistent with the large NW-SE trending pure extensional sources found along the southern Apennines axis.UnpublishedVienna International Center
Vienna
Austriaope
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