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Health and social home services among community-dwelling older people during COVID-19: results from the cross-sectional LOST in Lombardia project

Background: Few studies have focused on changes in health and social services access due to the COVID-19 pandemic. We aimed to describe changes in the use of selected health and social home services due to the pandemic and to investigate potential associated factors, including socio-demographic characteristics, number of chronic diseases and mental health indicators, among older Italian individuals. Methods: We analysed data from the LOST in Lombardia cross-sectional study conducted in Novemb...

The impact of gender diversity on M&A process results

The financial services industry still features a limited number of women in leadership roles: as of 2021, women held only 21% of board seats, 19% of C-suite positions, and 5% of CEO roles (Deloitte, 2022). However, female directors are associated with stronger monitoring, lower risk appetite, and greater institutional resilience. This study investigates whether the presence of women on boards influences the success of M&A transactions. We examine a sample of M&As conducted between 2013 and 20...

Corporate sustainability and M&A acquisition premiums

This research explores the relationship between Corporate Sustainability and acquisition premiums in Mergers and Acquisitions (M&A) processes, focusing on Environmental, Social, and Governance (ESG) performance. While environmental concerns have gained prominence, this study investigates the underexplored impact of target firms' ESG scores on M&A premiums. By examining 325 M&A transactions, the research uncovers a positive correlation between higher ESG scores and increased acquisition premiu...

Black-Box Concurrent Zero-Knowledge Requires (Almost) Logarithmically Many Rounds

We show that any concurrent zero-knowledge protocol for a non-trivial language, whose security is proven via black-box simulation, must use at least logarithmically rounds of interaction. This result achieves a substantial improvement over previous lower bounds, and is the first bound to rule out the possibility of constant-round concurrent zero-knowledge when proven via black-box simulation. Furthermore, the bound is polynomially related to the number of rounds in the best known concurrent ...

On the Existence of Extractable One-Way Functions

A function f is extractable if it is possible to algorithmically “extract,” from any adversarial program that outputs a value y in the image of f, a preimage of y. When combined with hardness properties such as one-wayness or collision-resistance, extractability has proven to be a powerful tool. However, so far, extractability has not been explicitly shown. Instead, it has only been considered as a non-standard knowledge assumption on certain functions. We make two headways in the study ...

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