88,882 research outputs found
F. Spitzl-Dupic (ed.), Approches théoriques de la linéarité du langage (Themenheft)
No full textSi tratta di una recensione breve del testo in oggett
τ → l+ invisible through invisible-savvy collider variables
No full textNew particles φ in the MeV-GeV range produced at colliders and escaping detection can be searched for at operating b− and τ−factories such as Belle II. A typical search topology involves pair-produced τs (or mesons), one of which decaying to visibles plus the φ, and the other providing a tag. One crucial impediment of these searches is the limited ability to reconstruct the parents' separate boosts. This is the case in the 'typical' topology where both decay branches include escaping particles. We observe that such topology lends itself to the use of kinematic variables such as M2, designed for pairwise decays to visibles plus escaping particles, and endowed with a built-in ('MAOS') way to efficiently guess the parents' separate boosts. Starting from this observation, we construct several kinematic quantities able to discriminate signal from background, and apply them to a benchmark search, τ→e+φ, where φ can be either an axion-like particle or a hidden photon. Our considered variables can be applied to a wider range of topologies than the current reference technique, based on the event thrust, with which they are nearly uncorrelated. Application of our strategy leads to an improvement by a factor close to 3 in the branching-ratio upper limit for τ→eφ, with respect to the currently expected limit, assuming mφ≲1 MeV. For example, we anticipate a sensitivity of 1.7×10−5 with the data collected before the 2022 shutdown
G. F. ARCODIA - C. MAURI, La diversità linguistica, Carocci, Roma 2016, pp. 126
No full textBreve presentazione del testo in oggett
Refined localization of human peroxisomal 3-oxoacyl-CoA thiolase (ACAA)to 3p22
No full textThe chromosomal localisation of the human gene coding for peroxisomal 3-oxoacyl-CoA thiolase (ACAA) was determined by human-hamster somatic cell hybrids and fluorescence in situ hybridisation, using cDNA and genomic probes, respectively. The results allowed an exclusion of the previously suggested presence of a second site for ACAA on chromosome 11 and an assignment of the gene to a single chromosome band (3p22)
F. GIURA, Auris, Audio e Ausculto. Revisione etimologica e histoire des mots, “Archivio Glottologico Italiano”, CI, 1, 2016, pp. 66-87
No full textSi tratta di una breve presentazione del testo in oggett
Anmerkungen zur Übersetzung von 'Umfeld' ins Italienische mit 'campitura'
No full textIn questo contributo viene spiegata la scelta di rendere il termine "Umfeld" utilizzato da Bühler con il termine italiano "campitura" nella traduzione del saggio "Das Strukturmodell der Sprache" del 1936. Vengono prese in esame precedenti proposte traduttive di questo termine e si cerca di giustificare la scelta operata
[Digestive hemorrhage as a complication of a pancreatic pseudocyst]
No full textA study was made at the Padua University Second Surgical Clinic--located in Verona--on four cases of digestive haemorrhage in patients with pancreatic pseudo-cysts. The psysiopatological, diagnostic and therapeutic problems inherent in this pathology are discussed. In particular, attention is drawn to the need for and difficulty of marking a correct diagnosis in good time, and the utility, for such purpose, of endoscopic examinations and selective arteriography of the coeliac tripod and the superior mesenteric artery. Lastly, the various possibilities that surgery offers in the treatment of this disease are mentioned
[The Budd-Chiari syndrome: clinical case reports]
No full textTwo cases of Budd-Chiari's Syndrome are presented. These refer to two women aged 34 and 33 years respectively. The aetiology of the first case is linked to polycythaemia rubra and the use of oral contraceptives; that of the second case to a fibrous perihepatitis involving the outlet of the suprahepatic veins, with a tenacious action of stenosis. The surgical therapy used was a latero-terminal left porto-renal shunt in the first case, and a decapsulation and ligature of the common hepatic artery in the second case. In the discussion the aetiopathogenetic, diagnostic and therapeutic problems inherent in the Syndrome are analysed, also on the basis of the most recent experiences reported in the relevant literature
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