Results 21 to 30 of about 448 (86)
The Anatomical Record, Volume 308, Issue 12, Page 3197-3229, December 2025.Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
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Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
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Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills +30 more
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Oxychlorine Species on Mars: A Review
Reviews of Geophysics, Volume 63, Issue 4, December 2025.Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
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DMSO solvates of tert‐butylcalix[6]arene and related multisolvent structures
Acta Crystallographica Section B, Volume 81, Issue 6, Page 517-527, December 2025.This study highlights how solvent properties, host–guest interaction energies and packing preferences govern the solid‐state organization of tert‐butylcalix[6]arene, a macrocycle of importance in separation, molecular recognition and supramolecular chemistry.tert‐Butylcalix[6]arene (TBC6) exhibits a rich crystal energy landscape, with structural ...
Monika Wanat +2 more
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Clinical and Translational Science, Volume 18, Issue 12, December 2025.ABSTRACT The onset of the global COVID‐19 pandemic created an urgent need for therapeutic monoclonal antibody (mAb) development, while the rapid mutation of the SARS‐CoV‐2 virus and emergence of new variants presented a moving target for validation of efficacy. Since it is virtually impossible to conduct randomized controlled trials in the context of a
Qianwen Wang +7 more
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Molecular Ecology, Volume 34, Issue 23, December 2025.ABSTRACT Population declines may have long‐term genetic consequences, including genetic erosion and inbreeding depression, which could affect species' evolutionary potential and increase their risk of extinction. Small populations are more vulnerable to genetic threats than common species, but even species with large populations can also be at risk of ...
Guoling Chen, Simon Yung Wa Sin
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Exploring the Radiation Damage of Vacancy‐Ordered Double Perovskites, ((NH4)(1−x)FAx)2SnBr6
ChemPhysChem, Volume 26, Issue 23, November 28, 2025.Incident X‐ray photons hν on a newly reported vacancy‐ordered double perovskite FA2SnBr6 results in damage of the compound. This is seen over increasing X‐ray dose using X‐ray photoelectron spectroscopy. Degradation studies of the ASnX3 perovskites to the A2SnX6 vacancy‐ordered double perovskite form have been well researched, but little is known about
Prajna Bhatt +8 more
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New Arabic Records From Cairo on Supernovae 1181 and 1006
Astronomische Nachrichten, Volume 346, Issue 9, November 2025.ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer +3 more
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Effect of Background Magnetic Field on Ion Weibel Instability With High‐Intensity Short‐Pulse Lasers
Contributions to Plasma Physics, Volume 65, Issue 10, November 2025.ABSTRACT The effect of finite background magnetic field on magnetic field amplification by Weibel instability using high‐intensity short‐pulse lasers is investigated. We consider Weibel instability for counter‐streaming sub‐relativistic plasma flows generated by shooting pure carbon targets with short‐pulse lasers.
Taiki Jikei +3 more
wiley +1 more source