64 research outputs found
Quantum Double and Differential Calculi
We show that bicovariant bimodules as defined by Woronowicz are in one to one
correspondence with the Drinfeld quantum double representations. We then prove
that a differential calculus associated to a bicovariant bimodule of dimension
n is connected to the existence of a particular (n+1)--dimensional
representation of the double. An example of bicovariant differential calculus
on the non quasitriangular quantum group E_q(2) is developed. The construction
is studied in terms of Hochschild cohomology and a correspondence between
differential calculi and 1-cocycles is proved. Some differences of calculi on
quantum and finite groups with respect to Lie groups are stressed.Comment: Revised version with added cohomological analysis. 14 pages, plain
te
Fungal aneurism of the right posterior inferior cerebellar artery (PICA)
In this case-report, the Authors show the case of a sudden death occurred in a 38-year-old woman submitted to
surgical excision of a right acoustic neurinoma. At the autopsy, was detected a cerebral hemorrhage with
multifocal localization by a ruptured rare fungal aneurysm of the Posterior Inferior Cerebellar Arthery (PICA).
The PCR analysis, carried out on formalin-fixed paraffin-embedded tissue, identified the Aspergillus Penicillioides
as the involved pathogen.
We discuss the main points of infectious aneurysms, being a potential neurosurgical complication
Effective Potential and Quantum Dynamical Correlators
The approach to the calculation of quantum dynamical correlation functions is
presented in the framework of the Mori theory. An unified treatment of classic
and quantum dynamics is given in terms of Weyl representation of operators and
holomorphic variables. The range of validity of an approximate molucular
dynamics is discussedComment: 8 pages, Latex fil
“Self stabbing sucide”: 116 casi occorsi nella città di Milano dal 1993 al 2016
Introduzione
Mentre molti omicidi nel Mondo sono compiuti con armi da taglio, i suicidi realizzati con siffatta modalit\ue0 lesiva sono rari accadimenti, comprovati nello 0,5-0,7% di tutti i casi di autosoppressione; in genere, sui corpi si osserva una sola ferita mortale, per quanto possano esserne eccezionalmente osservate anche molte, che sollevano la necessit\ue0 di stabilire se trattasi di modalit\ue0 realmente suicida piuttosto che omicida. In questi casi, ulteriori informazioni per configurare l\u2019esatta natura dell\u2019accadimento, sono desumibili dall\u2019anamnesi della vittima, dai dati circostanziali e di sopralluogo, nonch\ue9 dalle caratteristiche delle lesioni e dalla loro localizzazione. In questo studio, presentiamo l\u2019analisi dei casi di suicidio con armi da taglio, occorsi a Milano in 24 anni.
Materiali e metodi
Sono stati analizzati retrospettivamente 23417 verbali di autopsia redatti tra il 1993 e il 2016 presso la Sezione di medicina legale dell\u2019Universit\ue0 degli Studi di Milano estrapolando da 4022 suicidi totali, solo quelli realizzati con armi da taglio. Su questi casi, abbiamo approfondito lo studio delle caratteristiche delle vittime, della distribuzione e del numero delle lesioni autoinferte e delle caratteristiche dell\u2019arma feritrice.
Risultati
Abbiamo desunto 116 casi di suicidio con armi da taglio di cui: 103 realizzati con modalit\ue0 semplice e 13 con modalit\ue0 complessa, che hanno visto maggiormente coinvolti maschi italiani di et\ue0 compresa tra 41-e 50 anni, affetti da patologie psichiatriche, che si sono uccisi nella propria abitazione utilizzando, prevalentemente, coltelli da cucina. Le lesioni sono risultate monodistrettuali e localizzate agli arti superiori o al torace. In tutti i casi osservati, la morte, per la presenza di lesioni \u201cda assaggio\u201d a profondit\ue0 variabile, mancanza di segni di lotta, sangue limitato all\u2019area circostante il corpo e per la direzionalit\ue0 delle lesioni, da destra a sinistra, con il gomito piegato a 90 gradi verso il corpo, \ue8 stata attribuita, anche nel caso dei suicidi complessi, a shock emorragico da azione suicida.
Conclusioni
Gli inusuali suicidi compiuti con armi da taglio richiedono un approccio forense completo basato su un approfondito esame della scena del crimine durante il sopralluogo giudiziario, un\u2019accurata raccolta dei dati anamnestico-circostanziali e degli esiti autoptici i quali, unitamente alle indagini tossicologiche, possono rappresentare strumenti fondamentali per esprimersi motivatamente su un giudizio di accadimento omicida piuttosto che suicida
Pulmonary thromboembolism secondary to pelvic thrombosis related to giant ovarian tumor
Pulmonary thromboembolism (PTE) is one of the major complications in oncologic patients. The incidence of PTE in these
cases is 4 to 7 times higher than in non-oncologic patients. Ovarian tumors, specifically those of large sizes, may impair
the blood flow through the pelvic veins as tumor pressure over the pelvic vessels increases the incidence of thrombosis.
The authors report the case of the unexpected death of a 74-year-old female due to massive pulmonary thromboembolism,
associated with an ovarian tumor almost of 15 kg of weight that filled the abdominal and pelvic cavities. The compressive
effect on the walls of the pudendal and periuterine veins somehow facilitated the local thrombosis. According to the
histological characterization on post-mortem samples, the mass was identified as an \u201catypical proliferative (borderline)
mucinous tumor.\u201d The case emphasizes the important association between pulmonary thromboembolism and ovarian
tumors
Prevalence of chronic diseases by immigrant status and disparities in chronic disease management in immigrants: a population-based cohort study, Valore Project
BACKGROUND:
For chronic conditions, disparities can take effect cumulatively at various times as the disease progresses, even when care is provided. The aim of this study was to quantify the prevalence of diabetes, congestive heart failure (CHF) and coronary heart disease (CHD) in adults by citizenship, and to compare the performance of primary care services in managing these chronic conditions, again by citizenship.
METHODS:
This is a population-based retrospective cohort study on 1,948,622 people aged 16 years or more residing in Italy. A multilevel regression model was applied to analyze adherence to care processes using explanatory variables at both patient and district level.
RESULTS:
The age-adjusted prevalence of diabetes was found higher among immigrants from high migratory pressure countries (HMPC) than among Italians, while the age-adjusted prevalence of cardiovascular disease was higher for Italians than for HMPC immigrants or those from highly-developed countries (HDC). Our results indicate lower levels in all quality management indicators for citizens from HMPC than for Italians, for all the chronic conditions considered. Patients from HDC did not differ from Italian in their adherence to disease management schemes.
CONCLUSION:
This study revealed a different prevalence of chronic diseases by citizenship, implying a different burden of primary care by citizenship. Our findings show that more effort is needed to guarantee migrant-sensitive primary health care
- …