28,851 research outputs found
Flavour Violating Axions
I review the physics case for flavour violating axions. In particular, I
argue that relaxing the assumption of the universality of the Peccei-Quinn
current opens up new pathways, including: the relaxation of the Supernova bound
on the axion mass, a possible connection with the Standard Model flavour puzzle
and the experimental opportunity of discovering the axion via flavoured axion
searches.Comment: 9 pages, 2 figures. Talk given at the Workshop `Flavour changing and
conserving processes' 29-31 August 2019 (Capri Island, Italy). v2: references
adde
Autoregressive approaches to import-export time series I: basic techniques
This work is the first part of a project dealing with an in-depth study of
effective techniques used in econometrics in order to make accurate forecasts
in the concrete framework of one of the major economies of the most productive
Italian area, namely the province of Verona. In particular, we develop an
approach mainly based on vector autoregressions, where lagged values of two or
more variables are considered, Granger causality, and the stochastic trend
approach useful to work with the cointegration phenomenon. Latter techniques
constitute the core of the present paper, whereas in the second part of the
project, we present how these approaches can be applied to economic data at our
disposal in order to obtain concrete analysis of import--export behavior for
the considered productive area of Verona.Comment: Published at http://dx.doi.org/10.15559/15-VMSTA22 in the Modern
Stochastics: Theory and Applications (https://www.i-journals.org/vtxpp/VMSTA)
by VTeX (http://www.vtex.lt/
Pati-Salam Axion
I discuss the implementation of the Peccei-Quinn mechanism in a minimal
realization of the Pati-Salam partial unification scheme. The axion mass is
shown to be related to the Pati-Salam breaking scale and it is predicted via a
two-loop renormalization group analysis to be in the window eV, as a function of a sliding Left-Right symmetry
breaking scale. This parameter space will be fully covered by the late phases
of the axion Dark Matter experiments ABRACADABRA and CASPEr-Electric. A
Left-Right symmetry breaking scenario as low as 20 TeV is obtained for a
Pati-Salam breaking of the order of the reduced Planck mass.Comment: 33 pages, 3 figures. Minor corrections. Matches version to appear in
JHE
A lending scheme for a system of interconnected banks with probabilistic constraints of failure
We derive a closed form solution for an optimal control problem related to an
interbank lending schemes subject to terminal probability constraints on the
failure of banks which are interconnected through a financial network. The
derived solution applies to a real banks network by obtaining a general
solution when the aforementioned probability constraints are assumed for all
the banks. We also present a direct method to compute the systemic relevance
parameter for each bank within the network
Medical use of cannabis: italian and european legislation
This review illustrates some brief
considerations of the medical use of cannabis recently
issued in Italy. History and uses of cannabis
throughout centuries and different countries
are illustrated together with a description of botany
and active phytocannabinoids. Then, medical
use of cannabis anti-pain treatment for patients
resistant to conventional therapies is described
in case of chronic neuropathic pain, spasticity,
for anticinetosic and antiemetic effect in nausea
and vomiting caused by chemotherapy, for appetite
stimulating effect in cachexia, anorexia, loss
of appetite in cancer patients or patients with
AIDS and in anorexia nervosa, hypotensive effect
in glaucoma resistant to conventional therapies
and for reduction of involuntary body and facial
movements in Gilles de la Tourette syndrome.
Italian most recent legislation on medical cannabis
is detailed with some law proposals, also
showing the inconsistent legislation within European
Union. Some final considerations of future
studies are also reported
Is the team leading surgeon criminally liable for his collaborators’ errors? judges confirm responsibility and condemn an otorhinolaryngologist
In current healthcare, delivery of medical and surgical treatment takes place in a multidisciplinary manner. This raises the problem of distinguishing the conditions under which the person who has properly carried out his duties, respecting the related leges artis, can be held responsible for damages materially caused by another member of the medical team. Jurisprudence has developed the so-called “principle of trust” for which every member of the team can rely on the fact that other members are acting in compliance with the leges artis of their specialisation. The Supreme Court has limited the application of this principle. The authors examine the jurisprudence on responsibility of the team in otolaryngology and conclude that individual liability should be limited to the specific expertise of the individual specialist
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