221 research outputs found
An original logigramme to make safe discharge and community reintegration for Covid-19 patients
During the COVID-19 pandemic, discharge and community reintegration of patients are critical phases in order to guarantee public health.
A review of the international and Italian experience that represent the best evidence available was carried out, mainly focusing on the precise allocation of tasks and related responsabilities.
The report establishes a proposal for the systematic management pathway dedicated to Covid-19 patients.
The original result is a logigramme to guide health practitioners on discharge and community reintegration Covid-19 patients: standardize clinical attitudes helps in ensuring quality of care and patient safety that shuold be a core element even during a public health emergency
EURECOM:Monthly Bulletin of European Community Economic and Financial News. July/August 1991 Vol. 3, No. 7
Winds from the North-West quadrant and lack of precipitation are
known to lead to an increase of PM10 concentrations over a residential neighborhood
in the city of Taranto (Italy). In 2012 the local government prescribed
a reduction of industrial emissions by 10% every time such meteorological
conditions are forecasted 72 hours in advance. Wind forecasting is addressed
using the Weather Research and Forecasting (WRF) atmospheric simulation
system by the Regional Environmental Protection Agency. In the context of
distributions-oriented forecast verification, we propose a comprehensive modelbased
inferential approach to investigate the ability of the WRF system to
forecast the local wind speed and direction allowing different performances for
unknown weather regimes. Ground-observed and WRF-forecasted wind speed
and direction at a relevant location are jointly modeled as a 4-dimensional
time series with an unknown finite number of states characterized by homogeneous
distributional behavior. The proposed model relies on a mixture of joint
projected and skew normal distributions with time-dependent states, where
the temporal evolution of the state membership follows a first order Markov
process. Parameter estimates, including the number of states, are obtained
by a Bayesian MCMC-based method. Results provide useful insights on the
performance of WRF forecasts in relation to different combinations of wind
speed and direction
A multivariate circular-linear hidden Markov model for distributions-oriented wind forecast verication
Winds from the North-West quadrant and lack of precipitation are known to lead to an increase of PM10
concentrations in a residential neighborhood of the city of Taranto (Apulia, Italy). In 2012 the local government
prescribed a reduction of industrial emissions by 10% every time such meteorological conditions are
forecasted 72 hours in advance. Wind prediction is addressed using the Weather Research and Forecasting
(WRF) atmospheric simulation system by the Regional Environmental Protection Agency (ARPA Puglia).
In the framework of distributions-oriented forecast verication, we investigate the ability of the WRF system
to properly predict the local wind speed and direction allowing dierent performances for unknown
wind regimes. Ground-observed and WRF-predicted wind speed and direction at a relevant location are
jointly modeled as a 4-dimensional time series with a nite number of states (wind regimes) characterized by
homogeneous distributional behavior. Observed and simulated wind data are made of two circular (direction)
and two linear (speed) variables, then the 4-dimensional time series is jointly modeled by a mixture of
projected-skew normal distributions with time-independent states, where the temporal evolution of the state
membership follows a rst order Markov process. Parameter estimates are obtained by a Bayesian MCMCbased
method and results provide useful insights on wind regimes corresponding to dierent performances
of WRF predictions
Auslander-Reiten theory, derived categories, and higher dimensional homological algebra
Ph. D. Thesis.Auslander-Reiten theory plays an important role in the study of abelian and triangulated
categories (in classic homological algebra) and in their higher analogues (in the more recent
higher homological algebra). The classic setup studies module categories of the form mod
and their bounded derived categories Db(mod ), where is a nite dimensional algebra
over a eld k and mod is the category of nitely generated (right) -modules.
If gldim B 1, Br uning proved there is a bijection between the wide subcategories of
the abelian category mod and those of the triangulated category Db(mod ). When
T is a suitable triangulated category, J rgensen described Auslander-Reiten triangles in
the extension closed subcategories of T . If X b mod is a precovering extension closed
subcategory, Kleiner proved that any indecomposable not Ext-projective X > X appears
as the end term of an Auslander-Reiten sequence in X and he further described the case
when End (X) modulo the morphisms factoring through a projective is a division ring.
Letting d be a positive integer, we study higher homological algebra and higher Auslander-
Reiten theory. Geiss, Keller and Oppermann generalised triangulated categories to (d+2)-
angulated categories and Jasso likewise generalised abelian categories to d-abelian categories.
Note that the case d = 1 recovers classic homological algebra. Assuming there is a
d-cluster tilting subcategory F b mod , consider
F = add{ idF S i > Z} b Db(mod ):
Then F is d-abelian and plays the role of a higher mod having for higher derived category
the (d + 2)-angulated category F. With this in mind, we generalise Br uning, J rgensen
and Kleiner's results for higher values of d.
We also use higher Auslander-Reiten theory to generalise results on Grothendieck groups
of a suitable triangulated category T . We present \higher cluster tilting" versions of
results by Xiao and Zhu and by Palu and a \higher angulated" version of Palu's result.
Our results express K0(T ) as a quotient of the split Grothendieck group of higher-cluster
tilting subcategories of T .
We prove analogues of results by Kleiner on subcategories of mod in the corresponding
setup of subcategories of a suitable triangulated category T with a precovering extension
closed subcategory C. In particular, we introduce indecomposable Ext-projective objects
C in C, show that such a C appears in what we call a left-weak Auslander-Reiten triangle in
C and prove how these objects are related to the concept of Iyama and Yoshino's mutation.
ContentsSAgE faculty Newcastle Universit
Non-parametric regression on compositional covariates using Bayesian P-splines
Methods to perform regression on compositional covariates have recently
been proposed using isometric log-ratios (ilr) representation of compositional parts.
This approach consists of first applying standard regression on ilr coordinates and
second, transforming the estimated ilr coefficients into their contrast log-ratio counterparts.
This gives easy-to-interpret parameters indicating the relative effect of each
compositional part. In this work we present an extension of this framework, where compositional
covariate effects are allowed to be smooth in the ilr domain. This is achieved
by fitting a smooth function over the multidimensional ilr space, using Bayesian Psplines.
Smoothness is achieved by assuming random walk priors on spline coefficients
in a hierarchical Bayesian framework. The proposed methodology is applied to spatial
data from an ecological survey on a gypsum outcrop located in the Emilia Romagna
Region, Italy
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