Negative / Null Result ReportOpen accessEarth and Planetary Sciences
Yayaati Chachan, Jonathan J. Fortney, Kazumasa Ohno et al. · 2025 · The Astrophysical Journal
Abstract The rate at which giant planets accumulate solids and gas is a critical component of planet formation models, yet it is extremely challenging to predict from first principles. Characterizing the heavy element (everything other than hydrogen and helium) content of giant planets provides important clues about their provenance. Using thermal evolution models with an updated H–He equation of state and atmospheric boundary conditions that vary with envelope metallicity, we quantify the bulk heavy element content of 147 warm (<1000 K) giant planets with well-measured masses and radii, mo
View details →Negative / Null Result ReportOpen accessEarth and Planetary Sciences
Xavier A. Jenkins, Roger Benson, David P. Ford et al. · 2025 · Peer Community Journal
Living reptiles include more than 20,000 species with disparate ecologies. Direct anatomical evidence from Neodiapsida, which includes the reptile crown-group and its closest extinct relatives, shows that this diversity originates from a single common ancestor that lived over 255 million years ago in the Paleozoic. However, the evolutionary assembly of crown reptile traits is poorly understood due to the lack of anatomically close relatives of Neodiapsida. We present a substantially revised phylogenetic hypothesis, informed by new anatomical data from high-resolution synchrotron tomography of
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David John Gagne, Amy McGovern, Jeffrey B. Basara et al. · 2012 · Journal of Applied Meteorology and Climatology
Abstract Oklahoma Mesonet surface data and North American Regional Reanalysis data were integrated with the tracks of over 900 tornadic and nontornadic supercell thunderstorms in Oklahoma from 1994 to 2003 to observe the evolution of…
View details →Negative / Null Result ReportOpen accessEarth and Planetary Sciences
Qinghua Hou, Rajapakshalage Thashikala Nethmini, Feng Qi et al. · 2026 · Communications Biology
The leaf endosphere hosts diazotrophs vital for plant health and ecosystem resilience in saline environments. However, the geographic pattern and stability of the diazotrophic community in coastal salt marshes ecosystems are poorly…
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Lilian Anderson, Charlotte Brassey, Stuart Pond et al. · 2023 · The Anatomical Record
A reversion to secondary quadrupedality is exceptionally rare in nature, yet the convergent re-evolution of this locomotor style occurred at least four separate times within Dinosauria. Facultative quadrupedality, an intermediate state between obligate bipedality and obligate quadrupedality, may have been an important transitional step in this locomotor shift, and is proposed for a range of basal ornithischians and sauropodomorphs. Advances in virtual biomechanical modeling and simulation have allowed for the investigation of limb anatomy and function in a range of extinct dinosaurian species,
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Alok Bharadwaj, R. de Bruin, Arjen J. Jakobi · 2026 · Nature Communications
Cryogenic sample electron microscopy (cryo-EM) maps often display uneven quality, with high-resolution features coexisting alongside weak or poorly ordered regions. Such variation complicates structural interpretation, especially for heterogeneous macromolecular assemblies. Here, we present LocScale-2.0, a context-aware map optimisation framework that operates without prior knowledge of molecular structure or composition. By leveraging general expectations of electron scattering by biological macromolecules, it enhances local detail and connectivity while preserving weak but biologically relev
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Andrea Catacora‐Grundy, Caroline Juery, Fabien Chevalier et al. · 2026 · Proceedings of the National Academy of Sciences
Abstract Symbiosis between a host and intracellular eukaryotic microalgae is a widespread life strategy in aquatic ecosystems. This partnership is considered to be mainly energized by the photosynthetically-derived carbon energy of…
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Camille Zaug, John D. Carter · 2021 · Studies in Applied Mathematics
Abstract Ocean swell plays an important role in the transport of energy across the ocean, yet its evolution is not well understood. In the late 1960s, the nonlinear Schrödinger (NLS) equation was derived as a simplified model for the…
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Bálint Soczó, Ildikó Pethes · 2025 · Journal of Molecular Liquids
Describing the interactions of water molecules is one of the most common, yet critical, tasks in molecular dynamics simulations . Because of its unique properties, hundreds of attempts have been made to construct an ideal interaction potential model for water. In various studies, the models have been evaluated based on their ability to reproduce different properties of water. This work focuses on the atomic-scale structure in the liquid phase of water. Forty-four classical water potential models are compared to identify those that can accurately describe the structure in alignment with experim
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Mohammed Abdallah, Ke Zhang, Lijun Chao et al. · 2024 · Hydrology and earth system sciences
Abstract. Precipitation is a vital key element in various studies of hydrology, flood prediction, drought monitoring, and water resource management. The main challenge in conducting studies over remote regions with rugged topography is that weather stations are usually scarce and unevenly distributed. However, open-source satellite-based precipitation products (SPPs) with a suitable resolution provide alternative options in these data-scarce regions, which are typically associated with high uncertainty. To reduce the uncertainty of individual satellite products, we have proposed a D-vine copul
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