1,595 research outputs found
Vectorization with Haswell and CilkPlus
No full textProject Specification:
This project concerns the parallel computing and vectorization field for Physics Computing at CERN. The document summarises the results and experience from vectorization activities and an initial evaluation of the CilkPlus technology with two different benchmarks from CERN.
Abstract:
With the release of the Intel Sandy Bridge processor, vectorization ceased to be a “nice to have” feature and became a necessity. This work is focused on optimization, running comparative measurements of available vectorization technologies currently under investigation by the CERN Concurrency Forum. In particular, the project involves an assessment of the limits of autovectorization in two compilers, an evaluation of CilkPlus as implemented in ICC/GCC and an evaluation of AVX/AVX2 benefits with respect to legacy SSE workloads
Fetal Noncompaction Cardiomyopathy and Histologic Diagnosis of Spongy Myocardium: Case Report and Review of the Literature
No full textNoncompaction cardiomyopathy (NCCM) and left ventricular noncompaction (LVNC), in their isolated form, are rare cardiomyopathies. They are characterized by a thickened myocardium due to the presence of deep trabeculae recesses, and to thick trabeculae. This condition is associated with a variable clinical phenotype including heart failure, thromboembolism, and sudden death. We report a case of LVNC at 26 weeks and 4 days of gestation revised on the basis of what is currently reported in the literature. A review of the literature was performed to better describe this rare condition. Left ventricular noncompaction is a rare fetal condition and it should be suspected in case of cardiomyopathy
Hysteroscopic metroplasty for the septate uterus with diode laser: a pilot study
No full textOBJECTIVE:
To evaluate the feasibility and safety of office hysteroscopic metroplasty using a 980nm diode laser.
STUDY DESIGN:
18 patients were treated for septate uterus between 2013 and 2016. The indications for hysteroscopic metroplasty were recurrent abortion in 11 of the women and primary infertility in the other seven. We used a 5mm-office hysteroscope with a diode laser fibre. After exploration of the cavity, the septum was divided with use of the laser fibre.
RESULTS:
Operating time was 13,16±1,33min. Intraoperative pain was 3,05±0,72. No intraoperative or postoperative complications were observed. Follow-up performed 2 months after the hysteroscopic metroplasty confirmed the complete removal of the septum and no evidence of intrauterine synechiae.
CONCLUSION:
Office hysteroscopic metroplasty with use of a diode laser is safe and feasible; we believe that vaporization of the septum with a diode laser could reduce the formation of adhesions and consequently reduce the occurrence of septum persistence
Un "personaggio" dell'epopea garibaldina francese: fra' Giovanni Pantaleo
No full textL’impresa dei Mille aveva portato a compimento, fra luci e ombre messe in rilievo dalla storiografia dei nostri giorni, la liberazione di una terra ch’è sempre stata e continua ad essere, per i Francesi, la mitica “Île du Soleil”.
Principale responsabile dell’immediata diffusione del mito garibaldino fu Alexandre Dumas, che pubblicò ad immediato ridosso della felice conclusione dell’impresa dei Mille Les Garibaldiens, una sorta di taccuino su quella spedizione, ricostruita nel suo dipanarsi dal momento dell’imbarco a Quarto e fino alla caduta di Napoli. Quel testo ha contribuito in modo non indifferente a diffondere sempre di più in Francia, rafforzandolo, il mito che avvolgeva ormai, dopo le imprese della campagna del 1859, la figura di Garibaldi. Dal tessuto narrativo si stagliano personaggi dotati d’un notevole spessore, quasi deuteragonisti della narrazione: emerge, fra tutti, il frate francescano Giovanni Pantaleo, che accompagna il lettore dall’inizio alla fine della narrazione, così come nella realtà l’uomo aveva seguito Garibaldi dalla natìa Sicilia fino a Napoli, e ben oltre. Ricordato per l’importante ruolo rivestito nella formazione del cattolicesimo liberale, la sua memoria viene tramandata ai posteri da un busto eretto a Roma, sul Gianicolo: eppure, solo in modo del tutto episodico si è focalizzata l’attenzione su questa affascinante figura che si distingue fra quei personaggi, sospesi a metà tra storia e leggenda, che hanno preso vita a partire dai testi consacrati all’epopea garibaldina. Onnipresente nelle pagine degli scrittori garibaldini italiani (quali ad esempio Bandi o Abba), l’indomito francescano lo è ancor di più in quelle vergate da un folto gruppo di Francesi (oltre al Dumas basti ricordare, fra i molti altri, il Fonvielle e il Lockroy) che affiancarono Garibaldi nell’impresa. E si può affermare, anzi, che il Pantaleo dovette la sua prima ‘notorietà’ proprio ai combattenti e ai cronisti francesi, piuttosto e prima ancora che a quelli italiani, la pubblicazione dei riflessi memorialistici di quei volontari transalpini avendo precorso, quasi sempre, la pubblicazione degli scritti degli stessi componenti italiani del corpo di spedizione che aveva strappato ai Borbone il regno delle Due Sicilie. La vita letteraria del personaggio dell’infiammato fraticello, sospeso tra Storia e Mito, ha inizio proprio, infatti, nelle pagine di quanti vollero offrire in lingua frances la narrazione di un’impresa alla quale avevano partecipato in prima persona. Ed è per questo, forse, che il Pantaleo, troppo ingiustamente negletto dalle nostre parti, continua a vivere da sempre nell’immaginario di quanti, in Francia, abbiano letto quelle avvincenti narrazioni incentrate sulla liberazione della nostra Isola dal giogo borbonico, continuando ad incarnare un fulgido esempio di dedizione alla causa della Libertà e della Fratellanza tra i Popoli, e di una dedizione rimasta tale, con coerenza, fino alle estreme conseguenze
To be or not to be (a terrorist). Understanding the interplay between EU anti-terrorism legislation and international humanitarian law in light of recent EU case law
No full textThe relationship between International Humanitarian Law (IHL) and European Union legislation on anti-terrorism remains to be fully settled by the Court of Justice of the European Union. In particular, the application of EU anti-terrorism measures to non-State actors that are involved in an armed conflict has given rise to controversy. According to a strict interpretation of the principle of lex specialis, IHL should be regarded as the only set of rules governing the conduct of hostilities. The imposition of economic sanctions against a party to an armed conflict would therefore be incompatible with the said principle. In its LTTE judgment issued in 2014, the General Court rejected this interpretation and decided to uphold the sanctions despite finding that the entity subject to them was involved in an armed conflict. In its recent ruling, A. and Others, the CJEU confirmed the findings of the General Court. This article welcomes the CJEU’s decision insofar as it reaffirmed the distinct purpose of Framework Decisions and Common Positions as separate legal instruments, and the lex specialis relationship of the latter with IHL. Although the CJEU affirms - albeit only indirectly - that IHL is indeed lex specialis in the context of armed conflict, it qualifies that position. The author analyses such qualification, concluding that IHL can only be applied as lex specialis to situations of armed conflict if there is a conflict of norms between anti-terrorism sanctions prescribed by European Union law and IHL itself
Feasibility of hysteroscopic endometrial polypectomy using a new dual wavelengths laser system (DWLS): preliminary results of a pilot study
No full textCurrently, endometrial polyps may be successfully treated in an outpatient setting with 5 Fr mechanical and bipolar instruments. Our aim is to evaluate the benefits of minimally invasive techniques in hysteroscopy, focusing on the use of a new dual wavelengths laser system in the treatment of endometrial polyps in an outpatient setting
A 3 years retrospective study of survival for zirconia-based single crowns fabricated from intraoral digital impressions
No full textAbstract
Objective
To evaluate the clinical performance of glass-ceramic/zirconia crowns fabricated using intraoral digital impressions – a retrospective study with a three-year follow-up.
Methods
70 consecutive patients with a total of 86 glass-ceramic/zirconia crowns were treated by a single clinician using standardized clinical and laboratory protocols. A complete digital workflow was adopted for the purpose except for the veneering procedure for the glass-ceramic crowns. Occlusal adjustments were made before the ceramic glazing procedure. Before cementation, all abutments where carefully cleaned with a 70% alcoholic solution and air dried. Cementation was performed using dual-curing, self-adhesive resin cement. Patients were re-examined after 12, 24 and 36 months, to assess crown chipping/fractures.
Results
After the three-year follow-up, none of the zirconia-based restoration was lost (“apparent” survival rate 100%) otherwise, the chipping rate of the veneering material increased from 9.3% after 12 months, to 14% after 24 months to 30.2% after 36 months. As a consequence, the “real” success rate after 3 years was 69.8%.
Conclusions
After 3 years the success rate of zirconia-based crowns was 69.8%, while the incidence of the chipping was 30.2%. Assuming an exponential increase in chipping rate between 12 and 36 months it can be argued that, among others, the fatigue-mechanism could be advocated as the main factor for the failure of glass-ceramic veneered zirconia especially after 24 months
Convolutional Neural Network for Track Seed Filtering at the CMS High-Level Trigger
No full textStarting with Run II, future development projects for the Large Hadron Collider will constantly bring nominal luminosity increase, with the ultimate goal of reaching a peak luminosity of 5·1034 cm −2s −1 for ATLAS and CMS experiments planned for the High Luminosity LHC (HL-LHC) upgrade. This rise in luminosity will directly result in an increased number of simultaneous proton collisions (pileup), up to 200, that will pose new challenges for the CMS detector and, specifically, for track reconstruction in the Silicon Pixel Tracker. One of the first steps of the track finding work-flow is the creation of track seeds, i.e. compatible pairs of hits from different detector layers, that are subsequently fed to higher level pattern recognition steps. However, the set of compatible hit pairs is highly affected by combinatorial background resulting in the next steps of the tracking algorithm to process a significant fraction of fake doublets. A possible way of reducing this effect is taking into account the shape of the hit pixel cluster to check the compatibility between two hits. To each doublet is attached a collection of two images built with the ADC levels of the pixels forming the hit cluster. Thus the task of fake rejection can be seen as an image classification problem for which Convolutional Neural Networks (CNNs) have been widely proven to provide reliable results. In this work we present our studies on CNNs applications to the filtering of track pixel seeds. We will show the results obtained for simulated event reconstructed in CMS detector, focusing on the estimation of efficiency and fake rejection performances of our CNN classifier
Sul S. Pantaleo 8 della Biblioteca Nazionale Centrale di Roma: una miscellanea dantesca di metà Trecento
No full textThe article discusses the MS S. Pantaleo 8, a remarkable collection of Dante’s works now kept at the Biblioteca Nazionale Centrale in Rome. By investigating how the manuscript was prepared, and on the basis of the eight different writings of the scribes who copied the texts, as well as of the work of the three illuminators involved in the decoration of the book, the author suggests that the manuscript might have been copied around the mid-14th century either in eastern Tuscany or in Umbria
Sul S. Pantaleo 8 della Biblioteca Nazionale Centrale di Roma: una miscellanea dantesca di metà Trecento
No full textThe article discusses the MS S. Pantaleo 8, a remarkable collection of Dante’s works now
kept at the Biblioteca Nazionale Centrale in Rome. By investigating how the manuscript
was prepared, and on the basis of the eight different writings of the scribes who copied
the texts, as well as of the work of the three illuminators involved in the decoration of the
book, the author suggests that the manuscript might have been copied around the mid-14th
century either in eastern Tuscany or in Umbria
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