An experimental and numerical model of the behavior of cytosine in aqueous solution under gamma radiation. Relevance in prebiotic chemistry

Autor: A. Paredes-Arriaga, A. Negrón-Mendoza, D. Frias, A.L. Rivera, S. Ramos-Bernal

Publikováno v: Heliyon, Vol 10, Iss 13, Pp e33288- (2024)

Cytosine is an essential chemical molecule in living systems, such as DNA and RNA, it is essential in astrobiology to study how it behaves under probable primitive conditions. We looked at how cytosine broke down in aqueous solutions exposed to high

Externí odkaz: https://doaj.org/article/cb35e9c5ee5944039c30f6fb3ad4f08e

Results and Perspectives from the First Two Years of Neutrino Physics at the LHC by the SND@LHC Experiment

Autor: D. Abbaneo, S. Ahmad, R. Albanese, A. Alexandrov, F. Alicante, K. Androsov, A. Anokhina, T. Asada, C. Asawatangtrakuldee, M. A. Ayala Torres, C. Battilana, A. Bay, A. Bertocco, C. Betancourt, D. Bick, R. Biswas, A. Blanco Castro, V. Boccia, M. Bogomilov, D. Bonacorsi, W. M. Bonivento, P. Bordalo, A. Boyarsky, S. Buontempo, M. Campanelli, T. Camporesi, V. Canale, A. Castro, D. Centanni, F. Cerutti, M. Chernyavskiy, K.-Y. Choi, S. Cholak, F. Cindolo, M. Climescu, A. P. Conaboy, G. M. Dallavalle, D. Davino, P. T. de Bryas, G. De Lellis, M. De Magistris, A. De Roeck, A. De Rújula, M. De Serio, D. De Simone, A. Di Crescenzo, D. Di Ferdinando, R. Donà, O. Durhan, F. Fabbri, F. Fedotovs, M. Ferrillo, M. Ferro-Luzzi, R. A. Fini, A. Fiorillo, R. Fresa, W. Funk, F. M. Garay Walls, A. Golovatiuk, A. Golutvin, E. Graverini, A. M. Guler, V. Guliaeva, G. J. Haefeli, C. Hagner, J. C. Helo Herrera, E. van Herwijnen, P. Iengo, S. Ilieva, A. Infantino, A. Iuliano, R. Jacobsson, C. Kamiscioglu, A. M. Kauniskangas, E. Khalikov, S. H. Kim, Y. G. Kim, G. Klioutchnikov, M. Komatsu, N. Konovalova, S. Kuleshov, L. Krzempek, H. M. Lacker, O. Lantwin, F. Lasagni Manghi, A. Lauria, K. Y. Lee, K. S. Lee, S. Lo Meo, V. P. Loschiavo, S. Marcellini, A. Margiotta, A. Mascellani, F. Mei, A. Miano, A. Mikulenko, M. C. Montesi, F. L. Navarria, W. Nuntiyakul, S. Ogawa, N. Okateva, M. Ovchynnikov, G. Paggi, B. D. Park, A. Pastore, A. Perrotta, D. Podgrudkov, N. Polukhina, A. Prota, A. Quercia, S. Ramos, A. Reghunath, T. Roganova, F. Ronchetti, T. Rovelli, O. Ruchayskiy, T. Ruf, M. Sabate Gilarte, Z. Sadykov, M. Samoilov, V. Scalera, W. Schmidt-Parzefall, O. Schneider, G. Sekhniaidze, N. Serra, M. Shaposhnikov, V. Shevchenko, T. Shchedrina, L. Shchutska, H. Shibuya, S. Simone, G. P. Siroli, G. Sirri, G. Soares, J. Y. Sohn, O. J. Soto Sandoval, M. Spurio, N. Starkov, J. Steggemann, I. Timiryasov, V. Tioukov, F. Tramontano, C. Trippl, E. Ursov, A. Ustyuzhanin, G. Vankova-Kirilova, G. Vasquez, V. Verguilov, N. Viegas Guerreiro Leonardo, C. Vilela, C. Visone, R. Wanke, E. Yaman, Z. Yang, C. Yazici, C. S. Yoon, E. Zaffaroni, J. Zamora Saa

Publikováno v: Symmetry, Vol 16, Iss 6, p 702 (2024)

After rapid approval and installation, the SND@LHC Collaboration was able to gather data successfully in 2022 and 2023. Neutrino interactions from νμs originating at the LHC IP1 were observed. Since muons constitute the major background for neutrin

Externí odkaz: https://doaj.org/article/e06af3335f82426e9ba621e0d8e4e5e1

Gamma irradiation of adenine and guanine adsorbed into hectorite and attapulgite

Autor: A. Meléndez-López, J. Cruz-Castañeda, A. Negrón-Mendoza, S. Ramos-Bernal, A. Heredia, L.G. Castro-Sanpedro, D. Aguilar-Flores

Publikováno v: Heliyon, Vol 9, Iss 5, Pp e16071- (2023)

This study focuses on the radiolysis (up to 36 kGy) of guanine and adenine (nitrogenous bases) adsorbed in hectorite and attapulgite to highlight the potential role of clays as protective agents against ionizing radiation in prebiotic processes. In t

Externí odkaz: https://doaj.org/article/2e61312db67a47e99b9c398cf30629dd

Magnetic-field-controlled spin fluctuations and quantum critically in Sr3Ru2O7

Autor: C. Lester, S. Ramos, R. S. Perry, T. P. Croft, M. Laver, R. I. Bewley, T. Guidi, A. Hiess, A. Wildes, E. M. Forgan, S. M. Hayden

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)

Sr3Ru2O7 exhibits a quantum critical point tunable by magnetic field and has been widely used in the study of criticality. Here, by using inelastic neutron scattering, the authors measure collective magnetic excitations near the quantum critical poin

Externí odkaz: https://doaj.org/article/9763c72c301741b089c2f80667cd20a4

Large-scale features of Last Interglacial climate: results from evaluating the lig127k simulations for the Coupled Model Intercomparison Project (CMIP6)–Paleoclimate Modeling Intercomparison Project (PMIP4)

Autor: B. L. Otto-Bliesner, E. C. Brady, A. Zhao, C. M. Brierley, Y. Axford, E. Capron, A. Govin, J. S. Hoffman, E. Isaacs, M. Kageyama, P. Scussolini, P. C. Tzedakis, C. J. R. Williams, E. Wolff, A. Abe-Ouchi, P. Braconnot, S. Ramos Buarque, J. Cao, A. de Vernal, M. V. Guarino, C. Guo, A. N. LeGrande, G. Lohmann, K. J. Meissner, L. Menviel, P. A. Morozova, K. H. Nisancioglu, R. O'ishi, D. Salas y Mélia, X. Shi, M. Sicard, L. Sime, C. Stepanek, R. Tomas, E. Volodin, N. K. H. Yeung, Q. Zhang, Z. Zhang, W. Zheng

Publikováno v: Climate of the Past, Vol 17, Pp 63-94 (2021)

The modeling of paleoclimate, using physically based tools, is increasingly seen as a strong out-of-sample test of the models that are used for the projection of future climate changes. New to the Coupled Model Intercomparison Project (CMIP6) is the

Externí odkaz: https://doaj.org/article/d68ed8dbbf6f4cb6892ec9259adc18da