Article
Business, Finance
Rafael Zambrana, Fernando Zapatero
Summary: Our research shows that funds perform better when appointing superior pickers as specialists and market timers as generalists. This suggests that decisions are better matched with the way information is collected and processed in each investment strategy, thus adding value to investors. Overall, these results support the optimal assignment or reassignment of portfolio managers in fund families.
JOURNAL OF FINANCIAL ECONOMICS
(2021)
Editorial Material
Chemistry, Physical
Matthieu Fortin-Deschenes, Fengnian Xia
Summary: Layered silicon diphosphide exhibits unique excitonic states with linearly dichroic photoluminescence and strong exciton-phonon coupling.
Article
Psychology, Experimental
Inbar Amir, Liran Peleg, Nachshon Meiran
Summary: This study compared two paradigms in examining the Automatic Effect of Instructions (AEI) and found that the data-analytic approach partially explains the differences in AEI size, while instruction type and task complexity did not have the expected influence on AEI size.
PSYCHOLOGICAL RESEARCH-PSYCHOLOGISCHE FORSCHUNG
(2022)
News Item
Microbiology
Dongying Wu, Natalia Ivanova
Summary: This Genome Watch highlights the recent developments of prokaryotic nomenclature leading to the coexistence of two parallel prokaryotic nomenclatural codes.
NATURE REVIEWS MICROBIOLOGY
(2023)
Article
Electrochemistry
Russell J. H. Wanhill, Stefanie E. Stanzl-Tschegg
Summary: This paper discusses the fatigue design methodologies for aircraft airframes and steam turbine low-pressure blades, covering short/small fatigue cracks, fatigue crack growth thresholds, high-cycle fatigue (HCF), very-high-cycle fatigue (VHCF), and the relevance of environmental effects (corrosion and corrosion fatigue).
Editorial Material
Biochemistry & Molecular Biology
Han Han, Wenqi Wang
Summary: In a recent study published in The EMBO Journal, Qi et al (2023) propose a new model for the Hippo kinase cascade, shedding light on the long-standing question of its precise organization.
Article
Immunology
Nathan Fox, Philip Adams, David Grainger, Jennifer Herz, Carolyn Austin
Summary: Vaccines are important for a nation's health, wellbeing, and prosperity. However, traditional health technology assessment methods often fail to consider the broader effects of vaccines, making it challenging to obtain timely funding. Therefore, proposing broader evaluation approaches is crucial for policymakers.
Article
Physics, Applied
Takaaki Kawaguchi
Summary: The study focuses on the sliding dynamics of a two-dimensional incommensurate lattice on a substrate lattice with a periodic potential through numerical simulations. It was found that in the presence of a misfit angle between lattice directions and strong interatomic interactions, the lattice is pinned and exhibits complex modulation even during sliding. The sliding direction is influenced by the formation of flow channels and the pinned lattice structure.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Editorial Material
Biochemistry & Molecular Biology
James Chen, Damian C. Ekiert
Summary: This paragraph describes a drug for treating multidrug-resistant tuberculosis, which targets the key enzyme ATP synthase in cellular respiration. A recent study shows that this drug, along with another inhibitor, prevents the enzymatic function by inhibiting the necessary rotational motions.
Review
Chemistry, Inorganic & Nuclear
James A. Birrell, Patricia Rodriguez-Macia, Edward J. Reijerse, Maria Alessandra Martini, Wolfgang Lubitz
Summary: This review provides an overview of the research history and progress on hydrogenases, focusing on their structure, mechanism of action, and catalytic cycle. It compares the studies on the simple enzyme containing the active site H-cluster and enzymes containing additional iron-sulfur clusters.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Astronomy & Astrophysics
J. J. Zanazzi
Summary: This study reanalyzes the binary data from Kepler and TESS missions and focuses on tidal circularization. It finds that circularization occurs at a period of around 6 days for nearly circular binaries with long orbital periods, but occurs at a period of around 3 days for binaries with moderate eccentricities. The study also highlights the significant difference in eccentricity distributions between young and old binaries.
ASTROPHYSICAL JOURNAL LETTERS
(2022)
Review
Chemistry, Physical
Leiping Duan, Long Hu, Xinwei Guan, Chun-Ho Lin, Dewei Chu, Shujuan Huang, Xiaogang Liu, Jianyu Yuan, Tom Wu
Summary: This review compares the similarities and differences between lead chalcogenide and lead halide perovskite QDs for photovoltaic applications, focusing on their fundamental physical properties and state-of-the-art devices with an emphasis on ligand and device engineering. Special attention is also given to the stability issue that often hinders photovoltaic technologies, with discussions on future developments, challenges associated with large-size cell fabrication and lead toxicity, as well as potential mitigation solutions.
ADVANCED ENERGY MATERIALS
(2021)
Review
Plant Sciences
Ross Sager, Malcolm Bennett, Jung-Youn Lee
Summary: Successful plant organ development relies on well-coordinated intercellular communication, with plasmodesmata playing a key role. Symplasmic isolation can promote organ differentiation and functionality.
TRENDS IN PLANT SCIENCE
(2021)
Review
Neurosciences
Joriene C. de Nooij, Niccolo Zampieri
Summary: This review discusses recent findings on the development of mouse proprioceptor subtypes and challenges in defining them at the molecular and functional level.
TRENDS IN NEUROSCIENCES
(2023)
Article
History & Philosophy Of Science
Markus Seidel
Summary: This paper provides an in-depth analysis of Kuhn's account of rational disagreement in science, revealing two different explanations derived from methodological incommensurability and Kuhn-underdetermination, which appear to be incompatible with each other. Moreover, the paper presents an alternative approach emphasizing the fallibility of epistemic justification to demonstrate the limitations of Kuhn's argument.
Article
Astronomy & Astrophysics
Pengfei Li, Federico Lelli, Stacy McGaugh, James Schombert, Kyu-Hyun Chae
Summary: The application of Bayesian techniques in astronomical data analysis faces challenges due to potential parameter degeneracies and uncertainties in error models. An analysis on rotation curves from the SPARC database shows that the inference of a variable G(N) is influenced by the combined effect of parameter degeneracies and uncertainties in error models.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Astronomy & Astrophysics
Yong Tian, Po-Chieh Yu, Pengfei Li, Stacy S. McGaugh, Chung-Ming Ko
Summary: The study investigates the mass-velocity dispersion relation in 29 galaxy clusters, finding a tight empirical relation between baryonic mass and velocity dispersion of member galaxies. However, the cluster baryon fraction falls short of the cosmic value, with the discrepancy increasing systematically for clusters of lower mass and baryonic acceleration.
ASTROPHYSICAL JOURNAL
(2021)
Correction
Astronomy & Astrophysics
Kyu-Hyun Chae, Federico Lelli, Harry Desmond, Stacy S. McGaugh, Pengfei Li, James M. Schombert
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Jyoti Yadav, Mousumi Das, Narendra Nath Patra, K. S. Dwarakanath, P. T. Rahna, Stacy S. McGaugh, James Schombert, Jayant Murthy
Summary: A study was conducted on star-forming complexes in three nearby galaxies using the Ultraviolet Imaging Telescope, revealing that outer disk star-forming regions are smaller and poorer in metal content compared to inner disk regions. Despite stable Q parameters in the outer disks of isolated galaxies, ongoing star formation activity was observed. In an interacting galaxy, the baryonic surface density is below 1, indicating potential local disk instabilities in the outer disk.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Yong Tian, Han Cheng, Stacy S. McGaugh, Chung-Ming Ko, Yun-Hsin Hsu
Summary: The study found a mass-velocity dispersion relation at the BCG-cluster scale, revealing flat velocity dispersion profiles and a tight empirical relation, with residual analysis showing no correlations with four properties.
ASTROPHYSICAL JOURNAL LETTERS
(2021)
Article
Astronomy & Astrophysics
M. Das, J. Yadav, N. Patra, K. S. Dwarakanath, S. S. McGaugh, J. Schombert, P. T. Rahna, J. Murthy
Summary: The study examines the star formation properties of XUV regions in two Type 2 galaxies and one mixed XUV type galaxy, comparing them with the behavior of neutral hydrogen emissions in their disks. Preliminary results from UVIT (FUV and NUV) observations of NGC 2541, NGC 5832, and ESO406-042, as well as GMRT observations of their HI emissions, are presented to analyze the UV emission morphology, estimate star formation rates, and compare them with the HI distribution in these galaxies.
JOURNAL OF ASTROPHYSICS AND ASTRONOMY
(2021)
Article
History & Philosophy Of Science
Stacy S. McGaugh
Summary: Galaxies are fundamental to the universe, and galaxy formation theory seeks to explain their origins. Early theories have been challenged by observations, leading to the need for auxiliary hypotheses like feedback. Dark matter and MOND are two competing theories in explaining galaxy formation, with dark matter models being flexible but less predictive compared to MOND.
STUDIES IN HISTORY AND PHILOSOPHY OF SCIENCE
(2021)
Article
Astronomy & Astrophysics
Stacy S. McGaugh, Federico Lelli, James M. Schombert, Pengfei Li, Tiffany Visgaitis, Kaelee S. Parker, Marcel S. Pawlowski
Summary: The study investigates the baryonic Tully-Fisher relation in the Local Group, finding a correlation between pressure-supported and rotationally-supported galaxies. By determining the scaling factor beta(c) for pressure-supported dwarf galaxies, the observed velocity dispersion is related to the equivalent circular velocity of rotationally-supported galaxies. This provides a common kinematic scale relating pressure and rotationally-supported dwarf galaxies.
ASTRONOMICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
Kyu-Hyun Chae, Harry Desmond, Federico Lelli, Stacy S. McGaugh, James M. Schombert
Summary: The study reveals that the internal dynamics of self-gravitating systems in freefall are affected by the strength of the external gravitational field, with a significant impact on the rotation curves of galaxies. It was found that galaxies in underdense or overdense regions exhibit contrasting relationships with the external gravitational field.
ASTROPHYSICAL JOURNAL
(2021)
Article
Astronomy & Astrophysics
T. Mistele, S. McGaugh, S. Hossenfelder
Summary: This study made rotation curve fits using the superfluid dark matter model and evaluated the relationship between the fits, stellar mass-to-light ratios, and the resemblance to MOND. The results showed that the mass-to-light ratios obtained with superfluid dark matter are generally reasonable, but they exhibit an unnatural dependence on galaxy size. Additionally, when the fits were forced to resemble MOND, there was tension between the total dark matter mass and gravitational lensing data.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Pengfei Li, Stacy S. McGaugh, Federico Lelli, Yong Tian, James M. Schombert, Chung-Ming Ko
Summary: This paper investigates the radial acceleration relation (RAR) in a cold dark matter (CDM) framework using a semiempirical model. The study finds that the CDM model with abundance matching alone cannot explain the observed RAR, and the overall compression of dark matter halos leads to systematic deviations from the observed relation.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
Pengfei Li, Stacy S. McGaugh, Federico Lelli, James M. Schombert, Marcel S. Pawlowski
Summary: The study examines the contraction of dark matter halos during galaxy formation and its impact on predicted cuspy dark matter halos. It shows that high surface brightness galaxies experience strong contraction in their dark matter halos, resulting in increased inner density slope with baryonic surface mass density.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Astronomy & Astrophysics
Ray Garner III, J. Christopher Mihos, Paul Harding, Aaron E. Watkins, Stacy S. McGaugh
Summary: We present deep, narrowband imaging of the nearby spiral galaxy M101 and its satellites to analyze the oxygen abundances of their H ii regions. Three different calibration techniques were used to estimate the oxygen abundances of the H ii regions, showing a strong abundance gradient in M101 while the satellite galaxies present little or no gradient. The study also reveals radial and azimuthal abundance variations in M101.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
Mousumi Das, Roger Ianjamasimanana, Stacy S. McGaugh, James Schombert, K. S. Dwarakanath
Summary: In this study, we derived the oblateness parameter q of the dark matter halo for a sample of gas-rich, face-on disk galaxies. We found that gas-rich galaxies with a gas to baryon mass ratio greater than 0.5 have oblate halos (q < 0.55), while stellar-dominated galaxies have a range of q values. Furthermore, we observed a positive correlation between stellar mass and halo oblateness q.
ASTROPHYSICAL JOURNAL LETTERS
(2023)
Article
Astronomy & Astrophysics
Kyu-Hyun Chae, Federico Lelli, Harry Desmond, Stacy S. McGaugh, James M. Schombert
Summary: This study compares two different Lagrangian theories, AQUAL and QUMOND, based on their numerical solutions of the external field effect, and finds that AQUAL is a better fit as an effective nonrelativistic limit of a potential modified gravity theory.