Personal view

Are our sportsmen and women getting a fair medical deal

A Personal View

Funding Information: This research was supported by the Associate Laboratory for Green Chemistry—LAQV (UIDB/50006/2020 and UIDP/50006/2020), which was financed by national funds from Fundacão para a Ciência e a Tecnologia, MCTES (FCT/MCTES). Publisher Copyright: © 2023 by the author.A story going back almost 40 years is presented in this manuscript. This is a different and more challenging way of reporting my research and I hope it will be useful to and target a wide-ranging audience. When preparing the manuscript and collecting references on the subject of this paper—aldehyde oxidoreductase from Desulfovibrio gigas—I felt like I was travelling back in time (and space), bringing together the people that have contributed most to this area of research. I sincerely hope that I can give my collaborators the credit they deserve. This study is not presented as a chronologic narrative but as a grouping of topics, the development of which occurred over many years.publishersversionpublishe

Dark Matter -- Personal View

Traditional evidence for large amount of dark matter is based on dynamical consideration for systems with $t_{dyn} \gg t_{obs}$. Recent observational and theoretical developments in gravitational lensing offer a much more robust determination of the mass distribution in some galaxies and their clusters, with the precision comparable to that obtainable for double stars for which $t_{dyn} < t_{obs}$, and offer independent and direct evidence for the presence of dark matter. Gravitational microlensing and femtolensing offer a possibility to detect MACHOs with masses in excess of $\sim 10^{-15} ~ M_{\odot}$. The recent detections of microlensing events by the EROS, MACHO and OGLE teams do not require any dark lenses as ordinary low mass stars are compatible with the observations. However, these searches will soon either detect genuine MACHOs, or they will place stringent upper limits on their number density.Comment: 8 pages, plain self-contained TEX, to appear in the Proceedings of the 5th Annual October Astrophysics Conference in Maryland: DARK MATTER, held on October 10-12, 1994 at College Park, Marylan