Results 191 to 200 of about 5,356 (294)

Towards routine accurate electron‐density studies of biological macromolecules

open access: yesActa Crystallographica Section D, EarlyView.
Here, we describe the determination of the highest resolution structure in the PDB at 0.43 Å resolution. Electron‐density maps reveal extensive deformation electron density that is completely accounted for by performing transferable aspherical atom refinements using the DiSCaMB library in BUSTER.We report here the structure of Pyrococcus abyssi ...
Elham Paknia   +10 more
wiley   +1 more source

One‐more‐vertex Next‐Event Estimation with Hierarchical Geometry Sampling

open access: yesComputer Graphics Forum, EarlyView.
Abstract Robust next‐event estimation (NEE) remains a challenge in scenes characterized by sparse or small‐scale geometry where indirect illumination is the primary transport mechanism. In these scenes, traditional path construction, which relies on local directional sampling, often fails to find intersections with the sparse geometry, and standard NEE
Jorge Garcia‐Pueyo   +3 more
wiley   +1 more source

One-pot neutron imaging of liquid-gas system: a parametric method study. [PDF]

open access: yesJ Radioanal Nucl Chem
Šercl J   +6 more
europepmc   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

Characterization of coesite‐bearing impact melt glass from the Hapcheon crater, Korea: Trimodal phase architecture, shock metamorphism, and implications for 40Ar/39Ar geochronology

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We present the first micrometer‐scale, phase‐resolved compositional characterization of impact melt glass from the Hapcheon crater (~1.4 km apparent diameter), the first confirmed impact structure on the Korean Peninsula, integrating EPMA‐WDS (5 μm spot), confocal Raman spectroscopy (<1 μm spot), XRD, and 40Ar/39Ar step‐heating geochronology ...
Jin‐Young Lee   +2 more
wiley   +1 more source

Transforming Grain-Boundary Brittle Precipitates to Ductility Pathways in Complex Concentrated Alloy. [PDF]

open access: yesAdv Sci (Weinh)
Li Z   +14 more
europepmc   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

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