Search results for "Tributi"

Centile estimation for a proportion response variable.

2015

This paper introduces two general models for computing centiles when the response variable Y can take values between 0 and 1, inclusive of 0 or 1. The models developed are more flexible alternatives to the beta inflated distribution. The first proposed model employs a flexible four parameter logit skew Student t (logitSST) distribution to model the response variable Y on the unit interval (0, 1), excluding 0 and 1. This model is then extended to the inflated logitSST distribution for Y on the unit interval, including 1. The second model developed in this paper is a generalised Tobit model for Y on the unit interval, including 1. Applying these two models to (1-Y) rather than Y enables model…

Proposed Polish Advertisement Levies – An Efficient Source of Public Income or Instruments of the Political Battle?

2022

This article analyses the bill of 2nd February 2021 on additional revenues of the National Health Fund, the National Fund for the Protection of Historical Monuments and the establishment of a Fund for the Support of Culture and National Heritage in the Media Area. The draft legislation, the announcement of which has triggered an unprecedented blackout protest in private media as well as a mass anti-government protest on the Internet, provides for the introduction of new public levies called advertisement contributions and the establishment of a new state special-purpose fund – the Fund for the Support of Culture and National Heritage in the Media Area. The aim of the article is to identify …

Effective charge from lattice QCD

2020

Using lattice configurations for quantum chromodynamics (QCD) generated with three domain-wall fermions at a physical pion mass, we obtain a parameter-free prediction of QCD's renormalisation-group-invariant process-independent effective charge, $\hat\alpha(k^2)$. Owing to the dynamical breaking of scale invariance, evident in the emergence of a gluon mass-scale, this coupling saturates at infrared momenta: $\hat\alpha(0)/\pi=0.97(4)$. Amongst other things: $\hat\alpha(k^2)$ is almost identical to the process-dependent (PD) effective charge defined via the Bjorken sum rule; and also that PD charge which, employed in the one-loop evolution equations, delivers agreement between pion parton di…

Diplostomiasis ( Diplostomum spathaceum and related species).

2020

This book chapter describes various aspects of diplostomiasis caused by Diplostomum spathaceum: diagnosis, epidemiology, life cycle, transmission, developmental stages, population dynamics, effects of climate change on parasite distribution, and disease control and prevention. peerReviewed

Opposing health effects of hybridization for conservation

2021

The continuing decline of many natural plant and animal populations emphasizes the importance of conservation strategies. Hybridization as a management tool has proven successful in introducing gene flow to small, inbred populations, but can be also associated with health risks. For example, hybridization can change susceptibility to infection in either direction due to heterosis (hybrid vigor) and outbreeding depression, but such health effects have rarely been considered in the genetic management of populations. Here, we investigated the effects of experimental outcrossing between the critically endangered Saimaa landlocked salmon (Salmo salar m. sebago) and the genetically more diverse A…

Characterization of the Magnetic Induction Field produced by Secondary Substations

2014

The aim of this paper is to develop a methodology for measuring the magnetic field distribution around the prefabricated secondary substations in vibrated reinforced concrete, as well as the definition of a methodology to determining the maximum value of magnetic induction produced by the substations in correspondence to nominal current of the transformer. As proposed has been developed in conformity with laws and standards and can be applied to active and passive secondary substations. The experimental validation of the proposed methodology, carried out by a measurements campaign whose results are reported, confirms the validity and returns a versatile and simple tool for the verification …

Las estrategias del comercio especializado

2006

Este trabajo presenta una revisión y actualización de las estrategias empleadas por los minoristas especializados en su lucha competitiva con los minoristas generalistas. En un primer apartado se delimita el concepto de especialista, según la literatura académica, para pasar después a cuantificar su situación en España, en Europa y en Estados Unidos. A continuación se analiza la posición de los especialistas en los diferentes subsectores de actividad, para finalizar con una propuesta de las estrategias llevadas a cabo por los especialistas en España. This paper contains a review and update of the strategies used by specialized retailers to compete with their general counterparts. After defi…

Humanities and Social Sciences Latvia. Vol. 25, N. 2 (Autumn-Winter 2017) 

2017

Group Buying of Competing Retailers

2011

Effect of voltage deviations on power distribution losses in presence of DG technology

2015

Integration of distributed generation (DG) units in power distribution network has become increasingly attractive multi-faceted paradigm as economic and environmental factors drive new technologies to be more efficient and less polluting than their earlier counterparts. The installation of DGs impacts critically on the planning and operating characteristics of the distribution network. Type, location, number and capacity of DG are essential factors for studying the effect of DGs on the system behavior. In this paper the effect of DG on the power losses of a distribution network is investigated for different types of DG units. Also, the impact of DG on the voltage profile is demonstrated bef…