Article
Physics, Multidisciplinary
A. Alexandre, M. Mangeat, T. Guerin, D. S. Dean
Summary: Using a general adsorption desorption model with surface diffusion, this study analytically shows that making surfaces or obstacles attractive can accelerate dispersion.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Physical
Tom Rivlin, Eli Pollak
Summary: The study shows that nonadiabatic couplings can speed up tunneling events in nonadiabatic systems, and the appropriate measure to determine tunneling flight time is the Wigner phase time.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Editorial Material
Multidisciplinary Sciences
Jyoti Madhusoodanan
Summary: An array of spreadsheets, courses, and online resources are available to provide support for principal investigators leading their first research groups.
Editorial Material
Multidisciplinary Sciences
Marissa Mock, Suzanne Edavettal, Christopher Langmead, Alan Russell
Summary: Artificial intelligence tools can facilitate data sharing on drug candidates while ensuring the security of sensitive information, enabling the utilization of machine learning and cutting-edge lab techniques for the benefit of society.
Article
Astronomy & Astrophysics
Tomohiro Fujita, Yuto Minami, Maresuke Shiraishi, Shuichiro Yokoyama
Summary: Recently, the cross-correlation between E- and B-mode polarization of the cosmic microwave background has been found, and it can be explained by cosmic birefringence with a rotation angle of approximately 0.3 degrees. However, further investigation shows that this explanation fails to account for the observed EB correlation due to the excessive production of BB autocorrelation.
Article
Chemistry, Physical
Massimo Delle Piane, Marta Corno
Summary: This study presents the first quantum mechanical investigation of the interactions between a model benzodiazepine drug, nitrazepam, and different models of amorphous silica surfaces. The results suggest that the adsorption of nitrazepam on amorphous silica is a highly exothermic process, accompanied by partial proton transfer from the surface to the drug, indicating a potential catalytic role of silica in the degradation reaction of benzodiazepines.
Article
Computer Science, Information Systems
Woochan Lee, Moonseong Kim, Jaeyoung Park
Summary: Artificial intelligence is at the core of the 4th industrial revolution, with big data technology and rapid data analysis being essential. Ridge regression is a technique that reduces sensitivity to outlier information, while a new algorithm introduced in this study improves the speed of ridge regression estimator calculation through series expansion and computation recycle, showing excellent speed and accuracy.
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS
(2021)
Article
Astronomy & Astrophysics
Sandeep Kumar Acharya, Jiten Dhandha, Jens Chluba
Summary: The excess radio background observed at similar to 0.1-10GHz has sparked scientific debate in recent years. A recent hypothesis suggests that the soft photon emission from accreting primordial black holes could explain this signal. However, our study shows that the expected ultraviolet photon emission from these accreting black holes would fully ionize the universe at z > 6, thereby diminishing the 21-cm absorption signature at z similar to 20 and conflicting with the current limits of cosmic microwave background anisotropy and average spectral distortion.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Biodiversity Conservation
Erik Verbruggen, Eric Struyf, Sara Vicca
Summary: Mitigating climate change and increasing agricultural sustainability are twin challenges society faces in the upcoming decades. Enhanced weathering through ground silicates can reduce atmospheric CO2, with arbuscular mycorrhizal fungi potentially playing a key role in this process. Stimulating plant reliance on and investment in these fungi may lead to increased weathering rates and carbon sequestration in agricultural ecosystems.
PLANTS PEOPLE PLANET
(2021)
Article
Multidisciplinary Sciences
Ignacio Quintero, Michael J. Landis, Walter Jetz, Helene Morlon
Summary: The difference in species abundance between the tropics and the extra tropics is a major pattern in biogeography. Understanding the processes that regulate this diversity gradient is a challenge. By using spatiotemporal phylogenetic and paleontological models, we found that both extinctions in the extra tropics and outflow of tropical species contribute to shaping biodiversity. These dynamics accurately predict present-day levels of species richness across latitudes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Immunology
Lorenz Kretschmer, Noemie Fuchs, Dirk H. Busch, Veit R. Buchholz
Summary: Clonal expansion and development of immunological memory are two hallmarks of adaptive immune responses. Resolving the intricate pathways that regulate cell cycle activity and lead to the generation of diverse effector and memory T cell subsets is essential for improving our understanding of protective T cell immunity. A deeper knowledge of cell cycle regulation in T cells also has translational implications for adoptive cell therapies and vaccinations against infectious diseases.
MEDICAL MICROBIOLOGY AND IMMUNOLOGY
(2023)
Article
History & Philosophy Of Science
Corine Besson, Anandi Hattiangadi
Summary: In this paper, it is argued that John MacFarlane's truth relativism is not capable of solving the problem of future contingents, despite the assumptions made in terms of metaphysics, semantics, and pragmatics. The theory fails to vindicate the intuition that future contingent propositions are neither true nor false, leaving it open to criticism.
Article
Environmental Sciences
Yang Wang, Lifei Zhang, Zhong-Hai Li
Summary: The study reveals that the mass deficit of felsic crust in the India-Asia collisional system is significant, leading to long-duration fast convergence and crustal imbalance. Through simulations and calculations, it is found that the felsic crust is denser than the mantle at certain pressures, giving it negative buoyancy and facilitating spontaneous subduction.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Astronomy & Astrophysics
Suoqing Ji, Philip F. Hopkins
Summary: The reduced speed-of-light (RSOL) approximation is a useful technique in MHD-PIC simulations, but existing simulations may have artificial variations in CR properties. This study proposes a new formulation of the MHD-PIC equations with an RSOL, ensuring steady-state properties of the CR distribution function and representing real physical values in simulations.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Mathematics, Applied
Xuan Zhao, Luming Shen
Summary: We introduce a localized version of Galambos's question about the growth speed of the digits in Engel expansion and show that the Hausdorff dimension is irrelevant of the function & alpha;(x).
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
(2024)
Article
Astronomy & Astrophysics
Israel Quiros, Tame Gonzalez, Ulises Nucamendi, Ricardo Garcia-Salcedo, Francisco Antonio Horta-Rangel, Joel Saavedra
CLASSICAL AND QUANTUM GRAVITY
(2018)
Article
Astronomy & Astrophysics
Roberto De Arcia, Tame Gonzalez, Francisco Antonio Horta-Rangel, Genly Leon, Ulises Nucamendi, Israel Quiros
CLASSICAL AND QUANTUM GRAVITY
(2018)
Review
Astronomy & Astrophysics
Israel Quiros
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2019)
Article
Education, Scientific Disciplines
Diosdado Villegas, Francisco A. Horta-Rangel, Tame Gonzalez, Israel Quiros, R. Perez-Alvarez, Fernando de Leon-Perez
EUROPEAN JOURNAL OF PHYSICS
(2020)
Article
Astronomy & Astrophysics
Israel Quiros, Roberto De Arcia, Ricardo Garcia-Salcedo, Tame Gonzalez, Francisco Antonio Horta-Rangel
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2020)
Article
Physics, Multidisciplinary
Jorge Luis Morales Martinez, Ignacio Segovia-Dominguez, Israel Quiros Rodriguez, Francisco Antonio Horta-Rangel, Guillermo Sosa-Gomez
Summary: A new method called Multifractal Detrended Fluctuation Analysis with Polynomial and Trigonometric functions (MFDFAPT) is proposed in this study to better detect and model hidden local trends in time series. Through extensive numerical experiments, MFDFAPT shows superior performance in estimating Hurst index compared to traditional methods, and accurately determines scalar behavior in both stationary and non-stationary series.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Astronomy & Astrophysics
Israel Quiros, Francisco Antonio Horta-Rangel
Summary: In this paper, we discuss the issue of duplicate results generated by the independent development of apparently different theories that share the same theoretical model. Using the examples of the Einstein-massless-scalar (EMS) system and the Saez-Ballester theory (SBT), we demonstrate that SBT is in fact equivalent to the EMS theory, contradicting the widely held belief that SBT is a scalar-tensor theory of gravity. We also analyze cosmological arguments and show that the Saez-Ballester-based cosmological model does not exhibit accelerated expansion unless additional terms, such as a cosmological constant or a self-interacting scalar field, are included.
INTERNATIONAL JOURNAL OF MODERN PHYSICS D
(2023)
Article
Astronomy & Astrophysics
Israel Quiros
Summary: In this paper, the phenomenological footprints of gauge invariant theories of gravity are discussed, with a focus on the effects of nonmetricity and gauge symmetry in explaining cosmological puzzles. The possibility of vectorial nonmetricity surviving after symmetry breaking is explored, and it is shown that this is only possible for theories with gradient nonmetricity. The role of vectorial nonmetricity in the quantum epoch is not ruled out.
Article
Astronomy & Astrophysics
Israel Quiros
Summary: In this paper, we discuss the phenomenological viability of nonmetricity theories of gravity based on generalized Weyl spacetimes. We derive the master equation that governs the gauge-invariant variations of vector length during parallel transport, providing qualitative and quantitative estimates for the second clock effect and perihelion shift. Our conclusion is that generalized Weyl spaces do not represent phenomenologically viable descriptions of nature.
Article
Astronomy & Astrophysics
Israel Quiros, Roberto De Arcia, Ricardo Garcia-Salcedo, Tame Gonzalez, Francisco X. Linares Cedeno, Ulises Nucamendi
Summary: This paper investigates the cosmological dynamics of geometric inflation using the tools of dynamical systems theory, focusing on two explicit models where the infinite series of higher curvature corrections can be summed. The global dynamics of these toy models in phase space is discussed, revealing the quantum origin of primordial inflation.
Article
Astronomy & Astrophysics
J. Alberto Vazquez, David Tamayo, Anjan A. Sen, Israel Quiros
Summary: This paper analyzes minimally coupled scalar fields - quintessence and phantom - as candidates to explain the accelerated expansion of the Universe, comparing their observables to current cosmological observations. By constraining the parameter space of two generic potentials and analyzing the data sets, it was found that the model slightly favoring quintessence field fits best with current data. Despite containing three extra parameters, this model cannot be distinguished from the standard ΛCDM model with curvature based on Bayesian evidence. The potential with minimal Bayesian evidence corresponds to a specific form of the scalar field potential.
Article
Astronomy & Astrophysics
Ulises Nucamendi, Roberto De Arcia, Tame Gonzalez, Francisco Antonio Horta-Rangel, Israel Quiros
Article
Astronomy & Astrophysics
Israel Quiros, Ricardo Garcia-Salcedo, Tame Gonzalez, Jorge Luis Morales Martinez, Ulises Nucamendi
Article
Astronomy & Astrophysics
Israel Quiros, Tame Gonzalez, Roberto De Arcia, Ricardo Garcia-Salcedo, Ulises Nucamendi, Joel F. Saavedra
Article
Astronomy & Astrophysics
Ismael Delgado Gaspar, Juan Carlos Hidalgo, Roberto A. Sussman, Israel Quiros