5,617 research outputs found

    A House in the Form of a City. Casa Ceccarelli in Bologna (1962-63)

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    The Casa Ceccarelli in Bologna was designed by Giancarlo De Carlo for the astrophysicist and educator Marcello Ceccarelli in 1961-62, a time when the architect was working on the university settlement Collegio del Colle in Urbino, while his patron was completing the Croce del Nord (Northern Cross) - the first Italian radio telescope - in the Po valley. Born as a sort of experiment between two like-minded and unusual intellectuals, this building was, in De Carlo's words, “a flagrant case of a project-process, or in other words, of architecture” but also a laboratory for studying and testing new spatial inventions in a playful way. The author of this essay has lived in the house since he was a boy, experiencing it as a miniature city surrounded by its countryside and populated by numerous friends who were always there

    Myrmarachne gurgulla Ceccarelli, 2010, sp. nov.

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    <i>Myrmarachne gurgulla</i> sp. nov. Figures 19–27 <p> <b>Etymology.</b> This name comes from the adjective ‘gurgul’ meaning black in Wulguru (indigenous language of the Townsville area), chosen because of the black colouration of the spider’s cuticle.</p> <p> <b>Material examined.</b> <i>Holotype</i>: QM S66650 (male collected by FS Ceccarelli in Townsville, 19°19′34″S, 146°45′31″E 29 April 2003). Unregistered male (collected by FS Ceccarelli in Townsville, 7 October 2003); unregistered male (collected by FS Ceccarelli in Townsville, 7 July 2005); unregistered female (collected by FS Ceccarelli in Townsville, 5 June 2003).</p> <p> <b>Diagnosis.</b> Male chelicerae protrude, but are only about half the length of the carapace, containing one retromarginal tooth at the proximal end, and three at the distal end. The tibial segment of the palp is shorter than the width at its proximal end; the flange is well-developed and the tibial apophysis is black, sinuous and relatively large. The diameter of the tegulum is approximately four-fifths the length of the cymbium. The female epigyne has oval-shaped spermathecae and a continuous median pouch. <i>M. gurgulla</i> can be distinguished from <i>M. erythrocephala</i> and <i>M. striatipes</i> by the spination of the tibiae of the first pair of legs, where <i>M. gurgulla</i> has one spine (and the females have an additional pair), whereas <i>M. erythrocephala</i> has none, and <i>M. striatipes</i> has three pairs of spines on their tibiae.</p> <p> <b>Description.</b> <i>Male</i>: <i>Carapace</i>: all black, wedge-shaped depression in centre fringed with white hairs. <i>Eyes</i>: anterior medians procurved. <i>Clypeus</i>: fringed with white hairs. <i>Chelicerae</i>: all black and protruding, but when seen from the side at a slight downward angle, retromarginal dentition: one tooth at proximal end and two large and one small tooth on distal end; no fang apophysis. <i>Maxillae</i> and <i>labium</i>: black, maxillae with dark red margins. <i>Sternum</i>: black. <i>Opisthosoma</i>: black, sparsely covered with white hairs, central depression fringed with dense white hairs. <i>Legs</i>: slender. Legs I: tarsus black; metatarsus black; tibia red-brown and dark brown; patella yellow and red-brown; femur yellow and black; trochanter yellow and black; coxa white/cream. Legs II: tarsus dark yellow; metatarsus dark yellow; tibia dark yellow; patella dark yellow; femur dark yellow with black marks; trochanter yellow with black marks; coxa white/cream. Legs III: tarsus yellow; metatarsus yellow; tibia yellow and red-brown; patella dark brown; femur red-brown and black; trochanter red-brown and black; coxa black. Legs IV: tarsus yellow; metatarsus yellow; tibia red-brown and black; patella dark brown; femur brown and black; trochanter white; coxa white and black. Legs I spination: metatarsus 2-2, tibia 1, patella 0. <i>Palp</i>: tibial apophysis with a sinuous black hook, flange well-developed, embolus coiled once around bulbous tegulum, about 170 μm in diameter (making up four-fifths of the length of the cymbium), seminal reservoir marginate, cymbium and proximal depression fringed with setae. <i>Dimensions</i>: total length: 4.0– 4.8 mm; carapace length: 1.7–2.1 mm; ratio of carapaceto-chelicera length: 1.48–2.11; Ratios AME: ALE: P- ME: PLE: 4:1.8:1:2.5. <i>Female</i>: <i>Carapace</i>: same as ♂. <i>Eyes</i>: same as ♂. <i>Clypeus</i>: same as ♂. <i>Chelicerae</i>: not protruding, black. <i>Maxillae</i> and <i>labium</i>: same as ♂. <i>Sternum</i>: same as ♂. <i>Opisthosoma</i>: same as ♂. <i>Legs</i>: slender. Legs I: tarsus white with black markings; metatarsus white with black markings; tibia red-brown; patella white with black markings; femur brown with black markings; trochanter white with black markings; coxa white with black markings. Legs II: tarsus cream; metatarsus cream, tibia cream with brown markings; patella cream with brown markings; femur cream with brown markings; trochanter cream; coax cream. Legs III: tarsus white; metatarsus white; tibia red-brown and white; patella redbrown and white; femur red-brown and black; trochanter black and red-brown; coxa black. Legs IV: tarsus white; metatarsus white; tibia red-brown; patella white with brown markings; femur brown and black; trochanter light brown; coxa white. Legs I spination: metatarsus 2-2, tibia 1-2, patella 0. <i>Epigyne</i>: white, surrounded by red-brown pigmentation; continuous median pouches, spermathecae simple and oval-shaped, ducts relatively wide, not touching along the whole length. <i>Dimensions</i>: total length: 4.5–5.0 mm; carapace length: 2.0– 2.3 mm; ratios AME: ALE: PME: PLE: 3.5:1.8:1:2.2.</p> <p> <b>Distribution.</b> Specimens recorded from north Queensland, Australia: Townsville (19°13′S, 146°48′E); other areas unknown.</p> <p> <b>Remarks.</b> <i>Myrmarachne gurgulla</i> belongs to the <i>volatilis</i> group, and is the mimic of the ant <i>Tetraponera punctulata</i> Smith 1877 (Formicidae: Pseudomyrmecinae), positively associated with its ant model. This species is the least abundant in Townsville of the four species described here, and can easily be mistaken for <i>M. rubra</i>. The spiders can be found walking on trees (mainly eucalyptus trees of the species <i>E. platyphylla</i>), or inside retreats they build under pieces of bark, or in small indentations of the tree trunk. Males build sheet-like retreats, whereas the female retreats are more wool-like in appearance. Females lay between 10 and 15 eggs. The spiderlings are black during every stage of their life cycle.</p>Published as part of <i>Ceccarelli, F. Sara, 2010, New species of ant-mimicking jumping spiders of the genus Myrmarachne MacLeay, 1839 (Araneae: Salticidae) from north Queensland, Australia, pp. 245-255 in Australian Journal of Entomology 49</i> on page 250, DOI: 10.1111/j.1440-6055.2010.00756.x, <a href="http://zenodo.org/record/269132">http://zenodo.org/record/269132</a&gt

    Insediamenti ducali e residenze di villa estensi lungo la costa adriatica nel secondo Cinquecento

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    Nell'articolo si esaminano le strategie territoriali dei duchi d'Este alla fine del XVI secolo e nell'ambito della progettazione delle ville nel Ferrarese, soprattutto lungo le coste dell'Adriatico. Lo studio si avvale di una documentazione archivistica inedita e permette di leggere sotto una nuova luce interpretativa esperienze architettoniche di grande rilievo e qualità oltre a identificare il ruolo di nuovi progettisti e architetti

    A Brief Account on Roman Machines and Cultural Frames

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    A brief account of Roman machines is presented by looking at the historical development of a technical culture and its practice, with a specific focus on the main available sources. A few examples of designer personalities and machine designs are discussed with the aim to illustrate the specific professional approach that made the Roman Engineering very successful from the practical point of view

    "Citoyens en quelque sorte" : classes d'âge et activité politique en Grèce ancienne : M. C. Giammarco Razzano, La vecchiaia di Solone. Età e politica nella città greca.

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    Ceccarelli Paola. "Citoyens en quelque sorte" : classes d'âge et activité politique en Grèce ancienne : M. C. Giammarco Razzano, La vecchiaia di Solone. Età e politica nella città greca.. In: Dialogues d'histoire ancienne, vol. 29, n°1, 2003. pp. 195-196

    Problems and issues for service robots in new applications

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    Service robots give the possibility of new fields of applications for Robotics by wide spreading robots also into no technical areas. But requirements and goals need to be carefully revised both in designing and operating specific solutions. In this paper, main aspects and challenges are discussed both as problems and advantages in using robots in service operations for new areas of applications, by taking particular attention to non engineering aspects that are deduced from new service areas. In particular, two novel applications, with direct experience of the author and his team, are discussed as referring to robots for restoration activity of historical goods, and robots for physiotherapy rehabilitation and training, as examples with many very different aspects and backgrounds, but even with common issues. Key problems for developing service robots for a successful acceptance and use by even no technical users can be considered in terms of specific technical problems for low-cost useroriented operation systems, but mainly in terms of implications for human-machine interactions

    Immaginare la Sardegna. Tessiture visive per il design d’identità

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    Prova classica dell’exhibit e del corporate design, un incarico di ricerca per la Sardegna all’Expo di Milano 2015 ci ha permesso di elaborare un progetto di ampio respiro, che va oltre i confini estesi del design della comunicazione, consentendoci di verificare le nostre ipotesi “a cuore aperto” e con il pubblico del grande evento internazionale. Nel racconto di questa esperienza vogliamo evidenziare un approccio, ben radicato nella cultura italiana del progetto e del tutto coe- rente coi modi in cui insegniamo e facciamo design, che pone la necessità di un equilibrio tra la consapevolezza teorica e la pratica diretta al centro delle abilità del designer

    Editorial Activity of the IFToMM-PC for the History of Mechanism and Machine Science in the Period 2018–2023

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    The mandate of the current steering committee of the IFToMM Permanent Commission for the History of Mechanism and Machine Science (PC-HMMS) ends in 2023, after two consecutive terms. This paper is aimed at summarizes the activities and results of the PC-HMMS by all its members in these six years (2018–2023). It is intended to be a brief final report - the first to date - to constantly monitor the state of health of the commission. In particular, the focus is on the editorial activity of the PC that has been developed on two main tracks: the publication of monographs and related books on HMMS, and the publication of the proceedings of conferences and workshops related to the HMMS topics. The paper, without claims of completeness, is intended to be a moment of reflection on what has been done and a starting point for the activity of the next board of the IFToMM PC-HMMS
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