111,908 research outputs found
I fori Imperiali a Roma. Problematiche di degrado e un’ipotesi di progetto
No full textDopo una breve sintesi storica di inquadramento generale, si è cercato di mettere l’accento sugli eventi più importanti della storia romana che hanno portato dapprima alla creazione e poi alla trasformazione dell’intera area dei fori Imperiali e, in particolare del Foro di Cesare. Oltre alla sistematizzazione delle conoscenze acquisite allo stato attuale degli studi, base fondamentale e imprescindibile del lavoro è stata la lettura diretta e l’elaborazione grafica di rilievi e la sintesi critica delle diverse e complesse fasi costruttive della vita del foro. Infine, dopo aver analizzato le cause di degrado e valutato lo stato di conservazione, sono state definite alcune proposte tecniche e operative per il restauro di materiali, palinsesti murari e ambienti storici sino ad affrontare le più puntuali analisi delle problematiche di fruizione e valorizzazione. Il progetto nasce da una ponderata riflessione su alcune tematiche che possiamo definire “scottanti” nell’ambito delle teorie della musealizzazione delle aree archeologiche, e dal contemperamento di posizioni che in alcuni casi hanno assunto posizioni opposte, quali quella dell’evocazione e della reintegrazione dell’immagine anche parziale a scopi didattici ed esplicativi o, al contrario, la posizione espressa da chi sostiene la necessità di proteggere i siti archeologici, senza tuttavia aggiungere alcun segno che possa in qualche modo assurgere al ruolo d’interpretazione della preesistenza, che in quanto tale risulterebbe sempre illegittima. È stata inoltre data debita importanza alla problematica relativa alla rimozione delle aggiunte e/o delle stratificazioni seriori al livello imperiale, nonché ai percorsi, ai nodi di accesso, ai bordi di delimitazione dell’area archeologica e, non ultimo, alle coperture
Ricomposizione e ricostruzione dei partiti architettonici degli edifici antichi: metodologie a confronto
No full textL’articolo sintetizza quanto è stato detto nei diversi contributi presentati nella giornata di studio, tenutasi a Roma il 4 dicembre 2003, presso i Musei Capitolini, organizzata dal Comune di Roma, che ha riguardato il delicato tema della Ricomposizione e ricostruzione degli edifici antichi, con particolare attenzione all’Acropoli di Atene, evidenziando e sottolineando, inoltre, le differenze presenti nelle diverse impostazioni teoriche e metodologiche del restauro e della conservazione dei monumenti a livello nazionale e internazionale
La chiesa di San Lussorio a Fordongianus. Cantiere, tecniche e restauro
No full textLa chiesa di San Lussorio è situata su un colle alla periferia campestre di Fordongianus (Or), città fondata in età tardorepubblicana presso le sorgenti termali di Aquae Ypsitanae e sotto Traiano prese il nome di Forum Traiani. La chiesa fin dal V secolo fu sede diocesana e nel periodo medievale fu compresa nel “giudicato” di Arborea. Una primitiva memoria in ricordo di Lussorio (cripta martiriale) fu probabilmente eretta già nel IV secolo, riutilizzando una struttura semi–ipogea preesistente. Sulle strutture tardo–antiche e bizantine, ancora in parte interrate, sorge la chiesa medievale che, dopo numerosi crolli, ricostruzioni e rimaneggiamenti, si presenta a navata unica, con copertura a capriate lignee e abside semicircolare, voltata a semicatino, orientata ad est. Grazie allo studio delle stratigrafie murarie, unitamente alle altre analisi storiche tematiche, è stato possibile pervenire ad una nuova ipotesi sulla tipologia dell’impianto planimetrico della chiesa preesiste all’attuale e sulla cronologia delle numerose fasi costruttive che si susseguono dall’epoca della fondazione fino al XV secolo.The church of San Lussorio lies in fields on the outskirts of Fordongianus (Or). The city was founded in late republican times close by the Aquae Ypsitanae thermal springs. The Emperor Trajan gave it the name Forum Traiani. From the fifth century the church became a diocese; in Mediaeval times it fell within the jurisdiction of Arborea. A rudimentary memorial to Saint Luxorius had probably already been erected in the fourth century. A preexistent basement structure was converted to create a martyrial crypt. The mediaeval church lies West–East on Late Antiquity and Byzantine structures buried beneath. Many of its walls have collapsed over time, prior to rebuilding and renovation. Today’s church has a single nave, a wooden truss–frame roof and vaulted semi–circular apse. Analysis of the wall stratigraphy has been associated with research into the church’s history. This has permitted new hypotheses as to the changing ground plan of the church from its foundation through to the fifteenth century
Unreported deaths in pediatric surgery and anesthesia: A national, twenty year report
No full textIntroduction. Pediatric perioperative mortality is extremely low but it is underre-ported in peer-reviewed journals, making it difficult to understand the magnitude of the problem. The aim of this study was to identify pediatric deaths reported by the mass media over a 20- year period in pediatric and non-pediatric hospitals. Materials and methods. The international search engines Google, Yahoo, Bing, and the online archives of major newspapers were searched independently by 3 trained investigators (1st January 1995 to 1st January 2015) looking for children (<18 years old) who died in the perioperative period in Italy, excluding obstetrical or neonatal deaths. Results. A total of 51 fatal events were identified with 41 cases (80%) being elective procedures. Most fatal events (31 cases, 61%) occurred in non-specialized hospitals, 12 cases (23%) occurred in high-volume non-pediatric hospitals, and 8 cases (16%) in pediatric hospitals. The most frequently represented operations were head/ neck 21 cases (41%), abdominal 11 cases (21%), and orthopedic surgery 9 cases (18%). The reported causes of death were equally distributed between surgical (25 cases, 49%) and anesthesiological complications. The most common causes of death were hemorrhage (n=11), difficult airway management (n=10), infections (n=6), and allergic reactions (n=4). In 25% of cases (13 cases), the complication resulted in intraoperative death. Conclusion. Our findings suggest that most pediatric deaths reported by mass media occurred in non-pediatric centers during elective surgical procedures (e.g. adenotonsillectomy and appendicectomy), suggesting that referral to large-volume or pediatric hospitals should be preferred. Moreover, one of the most commonly reported complications was difficult airway management, confirming that this aspect should have a central role in physician training and practice
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The stratigraphic response to the Oligo-Miocene extension in the western Mediterranean from observations on the Sardinia graben system (Italy)
No full textAbstract. – The Sardinian Cainozoic rifted basin is a useful model for studying the stratigraphic response to the Oligo-
Miocene structural extension in the western Mediterranean because it allows precise observations on the relationship
between sedimentation and normal faulting based on outcrops and seismic reflection data. The purpose of this paper, essentially
of stratigraphic nature is to propose a chronology as precise as possible of the tectonic events and of the sedimentary
formations. Indeed the tectono-sedimentary framework is complex, characterized by an extreme facies
variability, from continental to marginal transitional and to marine environments (shallow-water, hemipelagic). Rifting,
active calc-alkaline volcanism and sea-level changes caused rapid physiographical evolution, which controlled progressive
marine ingression. New chrono-biostratigraphical data presented in this paper allow correlating the sequences, defining
their environment and depth of deposition and specifying precisely the timing of pre-, syn-, and post-rift stages in
the Oligo-Miocene graben system. In southwestern Sardinia during the middle-late Eocene, after the Pyrenean phase, a
continental graben (Cixerri), W-E oriented, preceded the Oligo-Miocene extension, which reactivated inherited Eocene
and Palaeozoic faults. The calc-alkaline volcanic activity ranging from 32 to 13 Ma, provides a good estimate for the
time span of the west-dipping Apenninic subduction responsible for the continental extension and the oceanic accretion
in the western Mediterranean. In Sardinia the Oligo-Miocene extensional tectonics started in a continental environment,
preceding the earliest calc-alkaline volcanic products (32 Ma). The marine ingression is dated to the late Chattian-Aquitanian
interval and corresponds to a rapid deepening of the Oligo-Miocene graben system of tectonic origin. The end of
the rifting i.e. the end of normal faulting activity is pre-middle Burdigalian in age. When Sardinia was in the post-rift
stage, extension continued until late Burdigalian – Langhian in the Algero-Provençal basin with oceanic accretion and
rotation of the Corsica-Sardinia block (CSB)
Therapeutic Hypothermia in Critically Ill Patients: A Systematic Review and Meta-Analysis of High Quality Randomized Trials
No full textObjectives: To investigate the effect of the application of therapeutic hypothermia (32-35°C) on survival and major clinical endpoints in critically ill patients. Data Sources: We searched online database and clinical trial registries dated up to April 30, 2019, and references of relevant studies. Study Selection: Low risk of bias randomized trials which compared hypothermia applied for at least 24 hours and conventional therapy in critically ill patients were included. We excluded trials investigating therapeutic hypothermia in indications already supported by international guidelines (adult cardiac arrest and hypoxic-ischemic encephalopathy of newborns) or intraoperative hypothermia. Data Extraction: Titles and abstracts were reviewed independently by two authors. If the articles seemed eligible, full-text articles were reviewed, and data were abstracted using a structured template. Data Synthesis: Our search retained 14 low risk of bias randomized trials (2,670 patients) performed in three different settings: traumatic brain injury, serious infections, and stroke. Therapeutic hypothermia was associated with an increase in mortality at longest follow-up available (432/1,375 [31%] vs 330/1,295 [25%]; risk ratio, 1.24; 95% CI, 1.10-1.39; p = 0.0004; I2= 0%). Pooled results showed no difference of good neurologic outcome among survivors between the two treatment arms (493/1,142 [43%] vs 486/1,067 [46%]; risk ratio, 1.04; 95% CI, 0.97-1.12; p = 0.27; I2= 1%). Arrhythmias were significantly increased among patients undergoing therapeutic hypothermia. We found no difference between groups in pneumonia, serious infections, any infection, hemorrhage, renal failure, deep vein thrombosis, and uncontrollable intracranial hypertension. Conclusions: High-quality randomized evidence indicates that therapeutic hypothermia is associated with higher mortality and no difference in good neurologic outcome compared with normothermia in critically ill patients. Although there still might be a possibility that therapeutic hypothermia is beneficial in a specific setting, routine application of therapeutic hypothermia would better be avoided outside the settings indicated by international guidelines (adult cardiac arrest and hypoxic-ischemic encephalopathy of newborns)
The stratigraphic response to the Oligo-Miocene extension in the western Mediterranean from observations on the Sardinia graben system (Italy)
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