Search results for "SETS"
showing 10 items of 592 documents
Impact of Mycobacterium tuberculosis Infection on Human B Cell Compartment and Antibody Responses
2022
Tuberculosis (TB) remains one of the most important health challenges worldwide. Control of the TB epidemic has not yet been achieved because of the lack of an effective vaccine and rapid and sensitive diagnostic approaches, as well as the emergence of drug-resistant forms of M. tuberculosis. Cellular immunity has a pivotal role against M. tuberculosis infection, but the role of humoral immunity is still controversial. We analyzed the frequency, absolute counts, and phenotypic and functional subsets of B lymphocytes in the peripheral blood of patients with active TB and subjects with latent infection compared to healthy donors. Moreover, we analyzed serum levels of total Ig and their IgA, I…
The great waves of accounting thought: an attempt of comparison between English and Italian literature
2020
The following speech has been pronounced at the XV Biennale of the Italian Society for Accounting History on October, 23rd, 2020, as the Introductory intervention of the Congress. The Author was Chairman of the Organizational Committee of the Congress and member of the Scientific Committee. It has the tentative status of scientific paper in order to be improved for a further process of publishing. It concerned the discerning of a number of parallel waves between English and Italian Accounting literature, since the early beginnings and until the advent of the Globalization Era, when standardization has made relatively unrelevant the specific contributions of single national streams of though…
Understanding short- and long-term implications of “myopic” fleet maintenance policies: a system dynamics application to a city bus company
2010
Financial losses recorded in city bus companies often force managers to implement restructuring strategies aimed at improving business results. However, such decisions may not produce the expected consequences for a number of reasons. Both the internal and external environment in which such companies operate can make the design and implementation of long-term sustainable policies quite difficult. In fact, the result may be that decision makers introduce "effective" policies in a company subsystem, while ignoring the medium- and long-term implications of such decisions in the performance of the whole company. With the aim to detect the main causes underlying "myopic" fleet maintenance polici…
Design and analysis of discrete choice experiments for models with response time
2013
The Up-Cycle Beyond the Crime: The Productive Re-Activation of Confiscated Criminal Assets
La ricerca “The Up-Cycle Beyond the Crime: the Productive Re-Activation of Confiscated Criminal Assets” affronta il tema del reinserimento dei beni confiscati alla organizzazioni criminali in nuovi cicli di vita produttivi. La tesi è sviluppata attraverso tre parti principali. La prima parte è dedicata all’inquadramento scientifico del tema e all’apparato teorico, proponendo un regesto critico delle teorie e dell’evoluzione del concetto di riciclo della città e del territorio, con particolare attenzione alla modalità dell’up-cycle, attingendo sia alla letteratura delle scienze sociali, geografiche ed economiche sia alle pratiche relative alla riattivazione dei metabolismi territoriali. La s…
Some reflections on Fuzzy Set Theory as an Experimental Science
2014
The aim of this paper is to open a critical discussion on the claim, recently presented in the community and especially heralded by Enric Trillas, that fuzzy logic should be seen as an “experimental science”. The first interesting aspect of such remark is whether and in which way such position has consequences on the real development of the research, or if it is simply a (different) way of looking at the same phenomenon. As a consequence, we investigate the possible connection to Zadeh’s distiction between Fuzzy logic in a restricted sense and in a general sense. We shall argue that Trillas’s claim not only strongly supports the necessity for such a distinction, but provides a path of inves…
WORKING CAPITAL AS AN ENTERPRISE VALUE ASSESSMENT TOOL
2019
The valuation of an entity in off-exchange transactions involves the use of different techniques. Nevertheless, none of them guarantees the most accurate result. Therefore, it is very difficult to choose one evaluation method. Both investors, corporate managers, financial professionals, portfolio managers, and securities analysts should have a basic understanding of the process of evaluating companies. To that end, professionals recommend evaluating a company’s financial reports to detect its financial position and solvency. According to the methods of financial analysis, working capital is one of the solvency ratios, which describes the value of resources that remain after the company’s cu…
Board Gender Diversity and Firm Performance: Evidence from Supply-Side Shocks in China
2019
This paper identifies a positive causal effect of board gender diversity on firm performance by utilizing unique historical events in China. Specifically, the Famine resulted in an evident gender gap in the supply of qualified directors of certain cohorts. Since the shocks differ in both gender and cohorts, we construct a novel "Diff-in-Diff'" instrumental variable and a Bartik instrument for board gender representation. We find that a 10% increase in board female representation can lead to a 2.38% increase in return on assets (ROA). Moreover, our results support the critical mass theory and indicate that female directors are beneficial by lowering risk levels and improving solvency.
Multiple testing of pairs of one-sided hypotheses
1986
Two-sided test procedures fork real parameters should point out in the case of rejection whether the left or the right alternative can be assumed. This sets up a multiple testing problem fork pairs of one-sided hypotheses. Holm's (1979, Scandinavian Journal of Statistics 6:65–70) sequentially rejective test provides a solution the critical levels of which are slightly improved. Considerable improvement is obtained when the hypotheses are redefined to be disjoint in pairs.
Gibbs states defined by biorthogonal sequences
2016
Motivated by the growing interest on PT-quantum mechanics, in this paper we discuss some facts on generalized Gibbs states and on their related KMS-like conditions. To achieve this, we first consider some useful connections between similar (Hamiltonian) operators and we propose some extended version of the Heisenberg algebraic dynamics, deducing some of their properties, useful for our purposes.