XRPD and SEM-EDS Identification of a Mineralogical Standards Kit Forming a 19th Century Collection for Educational Analysis

Blowpipe, XRPD, SEM-EDS, Historical Collection, Dry Analysis, Ore Identificatio

CO2 conversion into hydrocarbons via modified Fischer-Tropsch synthesis by using bulk iron catalysts combined with zeolites

To effectively address the challenges posed by global warming, a prompt and coordinated effort is necessary to conduct an extensive study aimed at reducing CO2 emissions and overcoming the obstacles presented by expensive and scarce fossil fuel resources. This study primarily focuses on comparing two different methodologies for preparing Na-promoted Fe3O4-based catalysts for the CO2 hydrogenation into hydrocarbon mixtures. Three catalysts were synthesized and tested: two samples were impregnated with a different amount of Na (1 wt% and 5 wt%), while a third one was obtained via coprecipitation with NaOH. As the latter catalyst exhibited the best performance, it was combined with zeolites in two ways: physical mixtures and core-shell structures. MFI-type zeolites were used in both configurations and a conventional structure was compared to a hierarchical one. As a result, mesopores increased successfully both the CO2 conversion from 37% to 40% and the liquid hydrocarbon (C6+) selectivity from 29% to 57%, doubling the C6+ yield. On the other hand, NH3-TPD and XPS measurements demonstrated that the intimate contact between the two materials in the core-shell structures led to the migration of Na from the oxide to the zeolite reducing the concentration of strong acid sites and, consequently, the liquid hydrocarbon yield

L’esercizio e gli Essais. La retorica filosofica di Montaigne

The Essais’s writing generates a form of original pyrrhonian philosophical discourse, apt to express the infinite variety of the world. In this way it paves the way to a limitless method of investigation: zetetics

Foreword

22nonereservedWright, John P.; Frasca-Spada, Marina; Kemp, Catherine; Kail, P.J.E.; Jacquette, Dale; Mazza, Emilio; Moore, James; Turco, Luigi; Pigden, Charles; Harris, James A.; Emerson, Roger L.; Baroncelli, Flavio; Baier, Annette C.; Spencer, Mark G.; Stewart, M.A.; Ross, Ian Simpson; Ronchetti, Emanuele; Bell, Martin; Norton, David Fate; Norton, Mary J.; Jones, Peter; Cohen, AlixWright, John P.; Frasca Spada, Marina; Kemp, Catherine; Kail, P. J. E.; Jacquette, Dale; Mazza, Emilio; Moore, James; Turco, Luigi; Pigden, Charles; Harris, James A.; Emerson, Roger L.; Baroncelli, Flavio; Baier, Annette C.; Spencer, Mark G.; Stewart, M. A.; Ross, Ian Simpson; Ronchetti, Emanuele; Bell, Martin; Norton, David Fate; Norton, Mary J.; Jones, Peter; Cohen, Ali

New essays on David Hume

New Essays on David Hume presents a collection of contributions from eminent scholars who cover a wide range of Humean topics: philosophy, politics, religion and history. The volume is divided into four sections. The first opens with the question of naturalism and closes with scepticism. Moral philosophy is at the heart of the second section, which also deals with the relation between Hume and Hutcheson. The third spans from the History of England and how it was appropriated by de Maistre and Constant, to the American reception of Hume's work and its connection with American deism. The last section is devoted to the presentation of recent Humeana: the new scholarly edition of the Treatise and two edited volumes on Hume and on his European reception

Oxidative Stress and Human Ovarian Response—From Somatic Ovarian Cells to Oocytes Damage: A Clinical Comprehensive Narrative Review

Basic scientific research on human reproduction and oxidative damage has been extensively performed; however, a more clinical view is still lacking. As a result, exhaustive data on the influence of oxidative stress on human ovarian response and, consequently, on fertility are still lacking. This narrative review aims at summarizing the role of oxidative stress in different conditions associated to female infertility and to list some of the main antioxidant agents. A systematic literature search was performed in May 2022 to retrieve studies regarding the oxidative stress and the human ovarian response from somatic ovarian cells to oocytes damage. Only human studies were included and the authors focused their review, in particular, on clinical implications in order to define a new research perspective on the assessment of any eventual strategy to preserve women’s fertility. Thereby, the authors evaluated the contribution of DNA repair pathways in improving women’s fertility by reducing the DNA damage associated with aging or diseases, such as endometriosis or polycystic ovary syndrome, and eventually, in prolonging the reproductive lifespan after cancer treatment