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Article
Open AccessBrand premia driven by perceived vertical differentiation in markets with information disparity and optimistic consumers
We have considered a duopoly with perceived vertical differentiation, information disparity and optimistic consumers. When firms compete for informed and uninformed consumers, the former contribute to raise pr...
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Article
Price discrimination in the Italian medical device industry: an empirical analysis
In this paper we ascertain that the Italian market for medical devices is characterized by significant price dispersion. We have, therefore, carried out an econometric analysis, as well as a Bayesian network a...
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Article
Investment-driven mixed firms: partial privatization by local governments
We analyze partial privatization by local governments, driven by investment and credit constraints, and provide a theory of monopolistic mixed firms based on strategic interaction between local politicians and...
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Article
A useful ultrasound score to select thyroid nodules requiring fine needle aspiration in an iodine-deficient area
Background: The high prevalence of thyroid nodules in iodine-deficient areas is a practical problem because of the large number of patients requiring fine needle aspiration (FNA) to detec...
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Article
Fine needle aspiration cytology of thyroid nodules: Conventional vs thin layer technique
Objective: Liquid-based cytology using the thin layer technique has recently been introduced in thyroid fine needle aspiration cytology together with or in substitution of direct smears, ...
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Article
Low dentin matrix protein 1 expression correlates with skeletal metastases development in breast cancer patients and enhances cell migratory capacity in vitro
Small integrin-binding ligand N-linked glycoproteins (SIBLINGs) constitute a family of extracellular matrix proteins involved in bone homeostasis. Their pattern of expression has been primarily reported in bon...
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Article
A randomized controlled trial to evaluate the efficacy of ultrasound-guided laser photocoagulation for treatment of benign thyroid nodules
This randomized controlled study was designed to test the efficacy and safety of percutaneous ultrasound (US)-guided laser photocoagulation (PLP) for treatment of subjects with compressive symptoms due to beni...
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Article
Biochemical and molecular characterization of the novel BRAFV599Ins mutation detected in a classic papillary thyroid carcinoma
Activating mutations of the BRAF gene are the most common genetic alterations in papillary thyroid carcinomas (PTCs) and the T1799A transversion, resulting in BRAFV600E, appeared virtually unique in this cancer t...
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Chapter and Conference Paper
Black Hole Accretion and Starbursts Triggered by Interactions in Hierarchical Galaxy Formation
We include into a semi-analytic model of galaxy formation a physical description of starbursts and of the feeding of supermassive black holes (BHs), powering the Active Galactic Nuclei (AGNs). Both such proces...
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Chapter and Conference Paper
Massive Black Holes in Galactic Nuclei
A discussion of the quasar-galaxy connections, and a review of astrophysical models that seek to explain the optical luminosity function of the active galactic nuclei and its cosmological evolution. Two issues...
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Chapter and Conference Paper
Beyond direct hierarchical clustering
Cosmic structures result both from direct collapses of initially overdense regions and from interactions of condensations. The corresponding mass distributions are described at a phenomenological level by the ...
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Chapter
Cluster Evolution
Using a time-resolved approach, we compare the dynamical evolutions of groups and clusters of galaxies, as expected from direct hierarchical collapses and from aggregations and mergings. We find that aggregati...
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Article
Increased reactivity of laminin in the basement membranes of capillary walls in AIDS brain cortex
To verify how the components of the capillary wall are modified in the course of AIDS we studied the brain cortex from nine cases with AIDS. Cellular and extracellular components were delineated using antibodi...
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Chapter and Conference Paper
An Evolutionary Unified Scheme for Radio-Loud Quasars and Blazars
The extragalactic sources called “blazars” (Angel and Stockman 1980) are characterized by flat spectrum radio emission, strongly variable optical-IR power-law continuum, and strong (p≳3%) and variable optical pol...
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Chapter
Structure at Intermediate Scales: Clusters of Galaxies
We discuss how diverse, ongoing theoretical efforts (N-body simulations, scaling laws and numerical computations for the luminosity functions) compare with the growing data base especially in X-rays in describ...
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Chapter and Conference Paper
The Rise and Fall of the Active Galactic Nuclei
A review of the fall and of the rise stage in the QSO evolution, that stresses the emerging connnections with the galactic histories.
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Chapter
Intergalactic Plasma in Clusters: Evolution
The statistical sampling of the X-ray sources associated with the Intra-Cluster Plasma in distant clusters and groups of galaxies will provide a direct view of the clustering process and of the history of the ...
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Chapter
Evolutionary Continuity of the Optical AGNs
With the optical data base now rapidly expanding, it is time to begin bridging the gap between astrophysical issues and phenomenological descriptions concerning the evolutionary properties of the AGNs. Ne revi...
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Chapter
The Dynamical Evolution of Clusters and Groups of Galaxies
Computer simulations of the evolution of clusters and of groups (including degrees of freedom internal to galaxies) test how the dissipationless clustering scenario meets the challenge posed by the observed va...
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Article
Gasophthalmus in black sea bream (Spondyliosoma cantharus) caused by Sarcinomyces crustaceus lindner
The authors have noted in a Black sea bream (Spondyliosoma cantharus) an example of gasophthalmus, caused by Sarcinomyces crustaceus, that did not alter the fish body but it modified its swimming habits.
