83 research outputs found
Upper Bounds for the Euclidean Operator Radius and Applications
No full textThe main aim of the present paper is to establish various sharp
upper bounds for the Euclidean operator radius of an n−tuple of bounded
linear operators on a Hilbert space. The tools used are provided by several
generalisations of Bessel inequality due to Boas-Bellman, Bombieri and the
author. Natural applications for the norm and the numerical radius of bounded
linear operators on Hilbert spaces are also given
Are we ready for the wolf comeback? Patterns of wolf depredation on livestock in Trentino, Italy
No full textAdvanced cellular models for rare disease study: exploring neural, muscle and skeletal organoids
No full textOrganoids are self-organized, three-dimensional structures derived from stem cells that can mimic the structure and physiology of human organs. Patient-specific induced pluripotent stem cells (iPSCs) and 3D organoid model systems allow cells to be analyzed in a controlled environment to simulate the characteristics of a given disease by modeling the underlying pathophysiology. The recent development of 3D cell models has offered the scientific community an exceptionally valuable tool in the study of rare diseases, overcoming the limited availability of biological samples and the limitations of animal models. This review provides an overview of iPSC models and genetic engineering techniques used to develop organoids. In particular, some of the models applied to the study of rare neuronal, muscular and skeletal diseases are described. Furthermore, the limitations and potential of developing new therapeutic approaches are discussed
Intensità dei conflitti tra grandi carnivori e pratiche zootecniche estensive nell'Italia nord-orientale: implicazioni gestionali e di conservazione
No full textLos ataques de grandes carnívoros a humanos: un estudio a escala mundial sobre escenarios, factores desencadenantes, patrones espacio-temporales y atributos de las especies
No full textTesis doctoral con mención internacionalEl objetivo de esta tesis doctoral es analizar y comparar los escenarios de ataques de grandes carnívoros a personas ocurridos en todo el mundo con el fin de ampliar los conocimientos sobre este fenómeno y tratar de identificar potenciales factores y soluciones para reducir la ocurrencia de estos conflictos tanto a escala global como local. Con este propósito, recopilamos y analizamos informaciones sobre ataques ocurridos en todo el mundo
Social Media and Large Carnivores : Sharing Biased News on Attacks on Humans
No full textThe Internet and social media have profoundly changed the way the public receives and transmits news. The ability of the web to quickly disperse information both geographically and temporally allows social media to reach a much wider audience compared to traditional mass media. A powerful role is played by sharing, as millions of people routinely share news on social media platforms, influencing each other by transmitting their mood and feelings to others through emotional contagion. Thus, social media has become crucial in driving public perception and opinion. Humans have an instinctive fear of large carnivores, but such a negative attitude may be amplified by news media presentations and their diffusion on social media. Here, we investigated how reports of predator attacks on humans published in online newspapers spread on social media. By means of multi-model inference, we explored the contribution of four factors in driving the number of total shares (NTS) of news reports on social media: the graphic/sensationalistic content, the presence of images, the species, as well as the newspaper coverage. According to our results, the information delivered by social media is highly biased toward a graphic/sensationalistic view of predators. Thus, such negative coverage might lead to an unjustified and amplified fear in the public with consequent lower tolerance toward predators and decrease in the support for conservation plans. However, because social media represents a powerful communication tool, its role might be reversed to positive if used appropriately. Thus, constant engagement of scientists on social media would be needed to both disseminate more accurate information on large carnivores and stem the tide of misinformation before its widespread diffusion, a crucial step for effective predator conservation.Peer reviewe
Hermitian forms and the large and small sieves
No full textAbstractThe author observes that two Hermitian forms have the same largest eigenvalue. A large sieve result of Roth-Bombieri type and Selberg's upper bound sieve with a Montgomery type error term are derived
The role of non-coding RNAs in pleural mesothelioma
No full textBackground: Pleural mesothelioma (PM) is a rare and highly aggressive tumor, primarily caused by asbestos exposure. Its long latency period and late-stage diagnosis severely limit therapeutic options. Aim: Recent evidence suggests that non-coding RNAs (ncRNAs)-including microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs)-play key roles in PM biology. This review aims to synthesize current knowledge on ncRNA dysregulation in PM and explore their diagnostic, prognostic, and therapeutic potential. Scope: We summarize studies addressing the expression and function of ncRNAs in tumors and in circulating biofluids of PM patients. Particular attention is given to how ncRNAs regulate proliferation, apoptosis, and migration, and how competing endogenous RNA (ceRNA) networks shape gene regulation in PM. Novelty and conclusion: Unlike previous reviews, this work integrates findings across different classes of ncRNAs and their interactions, highlighting the emerging concept of ceRNA networks in PM. By bridging molecular mechanisms with potential clinical applications, we provide an updated and comprehensive framework that may inform future strategies for diagnosis, prognosis, and targeted therapy in PM
Remainder estimates for squarefree integers in arithmetic progression
No full textAbstractThe author gives remainder estimates for squarefree integers in arithmetic progressions corresponding to those of Barban, Bombieri, Davenport, Halberstam, and Gallagher for primes in arithmetic progression. A number of applications are then considered, most notably the determination of an asymptotic for Σi<q≤xd3(q − l), where d3(n): = Σm1·m2·m3=n 1, l is a fixed nonzero integer, and q is squarefree
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