Multi-Analytical Approach for the Acid-Base, Thermal and Surface Properties Assessment of Waste Biomasses.

A multi-analytical approach was used to comprehensively characterize the acid-base, thermal, and surface properties of agri-food processing wastes (i.e., original and pre-treated bergamot, grape and olive pomaces).

Impaired survival of patients with non donor-specific anti-HLA antibodies before HLA-mismatched allogeneic stem cell transplantation.

Background: While the detrimental role of donor-specific anti-HLA antibodies (DSAs) is well-described in the setting of hematopoietic stem cell transplantation (HSCT), few studies focus on non donor-specific ones and with controversial results.

Methods: We here report our monocenter experience on 64 adult patients receiving allogeneic HSCT from a HLA-mismatched donor between 2014 and 2022 who were tested for the presence of anti-HLA antibodies before transplant, focusing on fifteen patients with non donor-specific anti-HLA antibodies.

Results: The survival of patients with non donor-specific anti-HLA antibodies was inferior with respect to patients without anti-HLA antibodies and similar to patients with DSAs.

Study of oxidation products in aged olive oils by GC and HPLC techniques coupled to mass spectrometry to discriminate olive oil lipid substances in archaeological artifacts from ancient Taormina (Italy).

The identification of archaeological biomarkers is one of the main objectives of analytical chemistry in the archaeological field. However, no information is currently available on biomarkers able to unambiguously indicate the presence of olive oil, a cornerstone of Mediterranean ancient societies lifestyle, in an organic residue. This study aims to bridge this gap by a thorough characterization of the degradation products of extra-virgin olive oils (EVOOs) resulting from in-lab thermal oxidative treatments, with the primary goal of revealing potential archaeological biomarkers for olive oil.

Computing Quantum Mean Values in the Deep Chaotic Regime.

We study the time evolution of mean values of quantum operators in a regime plagued by two difficulties: the smallness of ℏ and the presence of strong and ubiquitous classical chaos. While numerics become too computationally expensive for purely quantum calculations as ℏ→0, methods that take advantage of the smallness of ℏ-that is, semiclassical methods-suffer from both conceptual and practical difficulties in the deep chaotic regime. We implement an approach which addresses these conceptual problems, leading to a deeper understanding of the origin of the interference contributions to the operator's mean value.

A tutorial on potentiometric data processing. Analysis of software for optimization of protonation constants.

Defining the distribution of the chemical species in a multicomponent system is a task of great importance with applications in many fields. To clarify the identity and the abundance of the species that can be formed by the interaction of the components of a solution, it is fundamental to know the formation constants of those species. The determination of equilibrium constants is mainly performed through the analysis of experimental data obtained by different instrumental techniques.