171,575 research outputs found
Ragione e antiragione nella cultura filosofica europea. Studi per Domenico Conte
No full textPubblicato in onore di Domenico Conte in occasione del festeggiamento dei suoi settant’anni, il volume indaga il tema ragione/antiragione nella cultura filosofica europea, con particolare attenzione allo spazio italo-tedesco. È questa l’ampia regione a partire dalla quale i trentuno contributori del libro, di diversa provenienza (storici della filosofia, ma anche filosofi morali e teoretici, studiosi di estetica, antropologi) ed esperti di diverse fasi del pensiero occidentale (dall’età moderna a quella contemporanea), entrano in dialogo con le Fragen che animano la ricerca di Conte. Una delle cui cifre distintive è rintracciabile nell’attenzione per il complesso e problematico rapporto tra natura e spirito. Quello spirito che – canta Hölderlin in versi cari al festeggiato – proviene dallo spumeggiare dell’onda della vita sulla roccia antica e muta del destino
Clethrionomys tecpin Morrone et al. 2000
No full text<i>C. tecpin</i> Morrone <i>et al.</i>, 2000 <p> <i>Ctenophthalmus tecpin</i> Morrone <i>et al.</i>, 2000: 7.</p> <p> <b>Distribution.</b> Mexico.</p> <p> <b>Hosts.</b> <i>Cryptotis mexicana.</i> <b>Other hosts.</b> Rodentia: <i>Microtus</i> sp., <i>Oryzomys melanotis rostratus,</i> and <i>Peromyscus furvus</i> (Morrone <i>et al.</i>, 2000; Salceda­Sánchez & Hastriter, 2006).</p>Published as part of <i>Morrone, Juan J. & Acosta, Roxana, 2006, A synopsis of the fleas (Insecta: Siphonaptera) parasitizing New World species of Soricidae (Mammalia: Insectivora), pp. 1-30 in Zootaxa 1354</i> on page 10, DOI: <a href="http://zenodo.org/record/273605">10.5281/zenodo.273605</a>
Oltre Granital: divisione o fusione degli orizzonti di senso?
No full textanalisi degli orizzonti del dialogo tra giurisprudenze nella costruzione del diritto europe
L’adeguato assetto organizzativo, amministrativo e contabile nelle PMI: onere e onore
No full textLegislative Decree no. 14 of 12th January 2019, in addition to replacing the bankruptcy law and establishing the new Code of Business Crisis and Insolvency, introduced and amended some articles of the Italian Civil Code on the management and control of business activities. Indeed, the regulatory provision, which requires the appointment of a control body or auditor for small and medium-sized enterprises, also affects the management of the performing companies and, in particular, the establishment by these entities of an internal control system. The analysis carried out is intended to highlight the benefits that small and medium- sized enterprises could obtain implementing a valid and adequate organizational, administrative and accounting structure
Plochionocerus hermani Asiain, Marquez & Morrone, sp. nov.
No full textPlochionocerus hermani Asiain, Márquez & Morrone, sp. nov. Type material. Holotype, male: “ PANAMA: Darien, Cerro Malí, 1400 m, Serranía del Darién, I. 1975, C. W. Myers / Holotype Plochionocerus hermani Asiain, Márquez & Morrone, 2007 ” (AMNH). Description. Total length 18.5 mm. Body metallic violet. Head. Rounded, dorsally flat, ventrally moderately convex, slightly longer than wide (1.25 times), wider than pronotum (1.34 times); ventral surface of head lacking expanded umbilicate punctures (Fig. 52); first antennomere 1.56 times the length of antennomeres 2 + 3 combined; second antennomere 0.54 times as long as third antennomere; antennomeres 4–10 moderately transverse, increasing in size toward antennomere 10; apical antennomere in male 1.36 times as long as wide, 0.83 times as long as antennomeres 9 + 10 combined; mandibles with basal external channel (Fig. 63). Thorax. Pronotum long (length/width: 1.6), shorter than elytra (0.81 times), with two clearly visible depressed areas in posterior third (Fig. 56). Prosternum almost as long as wide (0.92 times). Aedeagus. Ovate, length 3.55 mm, with parameres short (0.29 times as long as median lobe), apical area of median lobe 0.24 times as long as the total length of median lobe, and internal sac of aedeagus moderately visible (Fig. 80). Comparative notes. This species is similar to P. newtonorum and P. transversalis, based on the head rounded or ovate, with dorsal surface flat. It can be distinguished from both species as follows: the ventral surface of the head is moderately convex and lacks expanded, umbilicate punctures, the apical antennomere in males is shorter than antennomeres 9 + 10 combined, the head is wider than the pronotum and the aedeagus is ovate. Geographical distribution. Panama. Etymology. We take pleasure in dedicating this species to Lee Herman (American Museum of Natural History), for his contributions to the study of Staphylinidae, and for his friendship and support.Published as part of Asiain, Julieta, Márquez, Juan & Morrone, Juan J., 2007, Phylogenetic systematics of the genera Plochionocerus Dejean and Agrodes Nordmann (Coleoptera: Staphylinidae: Xantholinini), pp. 1-53 in Zootaxa 1584 on page 17, DOI: 10.5281/zenodo.17841
Spatial frequency selectivity during saccadic eye movements revealed by masking
No full textPurpose: Low but not high spatial frequencies are suppressed during saccades (Burr et al., J. Physiol. 1982), probably because of selective suppression of the magnocellular pathway (Burr et al., Nature 1994). Here we investigate further the mechanisms for the suppression, using masking techniques. Methods: Contrast sensitivity for horizontally oriented test grating patches of low spatial frequency (0.07 c/deg) was measured in the presence of continuously displayed, randomly jittering mask gratings of variable contrast and spatial frequency, using a forced-choice procedure. The test gratings were presented briefly (8 ms) during normal vision and during large horizontal saccades. Results: Sensitivity decreased with mask contrast, with a similar (near linear) dependency during normal viewing and during saccades. For both normal and saccadic viewing, maximum reduction in sensitivity occurred when the mask had the same spatial frequency as that of the test (0.07 c/deg), at all levels of mask contrast. Conclusions: That maximum masking occurs at the same spatial frequency of the test implies that mechanisms selective to low spatial frequencies are not totally suppressed during saccades, but continue to operate with reduced sensitivity. This result fits well with the acceleration of the impulse response for luminance but not for chromatic stimuli during saccades (Burr and Morrone, Vision Res. 1996), that may result from gain changes in the magnocellular pathway during saccades
Il matrimonio tra persone dello stesso sesso: via giudiziaria o via legislativa per la sua introduzione?
No full textIl contributo descrive le problematiche relative all'introduzione del matrimonio tra persone dello stesso sesso per via giudiziaria o via legislativa. A tal fine vengono riportati estratti delle più significative decisioni giurisprudenziali
Socrate e Kant. Genealogie della ragione neokantiana
No full textThe contribution aims to reconstruct the genesis of the concept of reason within the framework of the early philosophical program of Wilhelm Windelband, the founder of the Baden School of Neo-Kantianism. To this end, two of Windelband's works are analyzed in terms of their systematic and historical-problematic assumptions: Immanuel Kant (1881) and Über Sokrates (1880). The purpose is to elucidate Windelband's interpretation of Greek philosophy and the origins of criticism, as well as to highlight an original kulturphilosophisch orientation in his thought
Plochionocerus ashei Asiain, Marquez & Morrone, sp. nov.
No full textPlochionocerus ashei Asiain, Márquez & Morrone, sp. nov. Type material (2 specimens). Holotype, male: “ VENEZUELA, Aragua, Rancho Grande Biological Station, Pico Periquitos, 1300 m, 10 ° 21 ’0”N, 67 ° 41 ’0”W, 13.V. 1998, R. Anderson, VEN 1 A 98 0 0 51, ex: cloud forest litter / Holotype Plochionocerus ashei Asiain, Márquez & Morrone, 2007 ” (SEMC). Paratype, male: “ Ve n., Caracas, D. F., 1933, G. Vivas-B. / Paratype Plochionocerus ashei Asiain, Márquez & Morrone, 2007 ” (FMNH). Description. Total length 17.1–18.1 mm. Body metallic green or blue-violet. Head. Rounded; longer than wide (1.19–1.30 times), almost as long as pronotum, wider than pronotum (1.32 times); dorsal surface slightly convex; ventral surface flat, with slightly dense, expanded, umbilicate punctures (10–19 in each half of the head; similar to Fig. 52), arranged in “v”; first antennomere 1.58–1.60 times as long as antennomeres 2 + 3 combined, second antennomere 0.67–0.73 times as long as third antennomere, antennomeres 4–10 moderately transverse, gradually larger toward apex, apical antennomere moderately longer than wide (1.26 times), shorter than antennomeres 9 + 10 combined (0.92 times its length; similar to Fig. 28); mandible with basal external channel slightly developed. Thorax. Pronotum 1.48–1.49 times as long as wide, shorter than elytra (0.85–0.91 times); with visible microsculpture; with two clearly visible depressed areas in posterior third (Fig. 56). Prosternum slightly transverse (length/width: 0.83–0.84). Aedeagus. Ovate, length 2.37–2.60 mm, with parameres 0.37–0.38 times as long as the median lobe, apical area of median lobe 0.32–0.36 times as long as the total length of median lobe, and internal sac moderately visible (Fig. 77). Variation. The holotype is metallic green, the head is short (length/width: 1.19), the expanded, umbilicate punctures on the ventral surface of the head are less dense (10–14), and the external mandibular channel is slightly developed. The color of the paratype is metallic blue-violet, the head is longer (length/width: 1.3), the expanded, umbilicate punctures on the ventral surface of the head are denser (15–19), and the external mandibular channel is more strongly developed. Comparative notes. The species may be confused with other species with a rounded, dorsally convex head, but only in P. discedens is the ventral surface of the head flat. The two species can be distinguished by the greater density of expanded, umbilicate punctures, the presence of a basal mandibular channel, and the shorter pronotum in P. d i s c e d e n s; whereas in P. ashei the expanded, umbilicate punctures are less dense, the mandibular channel is reduced, and the pronotum is longer. Geographical distribution. Venezuela. Etymology. We take pleasure in dedicating this species to the late James Steve Ashe (Snow Museum, Kansas University) for his study of Latin American Staphylinidae and his fieldwork that resulted in several of the specimens analyzed in this paper.Published as part of Asiain, Julieta, Márquez, Juan & Morrone, Juan J., 2007, Phylogenetic systematics of the genera Plochionocerus Dejean and Agrodes Nordmann (Coleoptera: Staphylinidae: Xantholinini), pp. 1-53 in Zootaxa 1584 on page 13, DOI: 10.5281/zenodo.17841
The lowest spatial frequency channel determines brightness perception
No full textThis study investigates the role played by individual spatial scales in determining the apparent brightness of greyscale patterns. We measured the perceived difference in brightness across an edge in the presence of notch filtering and high-pass filtering for two stimulus configurations, one that elicits the perception of transparency and one that appears opaque. For both stimulus configurations, the apparent brightness of the surfaces delimited by the border decreased monotonically with progressive (ideal) high-pass filtering, with a critical cut-off at I c/deg. Using two octave ideal notch filtering, the maximum detrimental effect on apparent brightness was observed at about I c/deg. Critical frequencies for apparent brightness did not vary with contrast, viewing distance, or surface size, suggesting that apparent brightness is determined by the channel tuned at I c/deg. Modelling the data with the local energy model [Morrone, M. C., & Burr, D. C. (1988). Feature detection in human vision: a phase dependent energy model. Proceedings of the Royal Society (London), B235, 221-245] at I c/deg confirmed the suggestion that this channel mediates apparent brightness for both opaque and transparent borders, with no need for pooling or integration across spatial channels. (C) 2007 Elsevier Ltd. All rights reserved
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