PyCC: A Reference Quantum Chemistry Python Package for Education, Validation, and Rapid Prototyping

Kavli Affiliate: Thomas Crawford | Summary:PyCC is a Python-based quantum chemistry package that emphasizes coupled cluster and related methods. Developed over the last five years, PyCC’s purpose is to provide a clear reference implementation that will serve as a validation suite for production code, a platform for rapid prototyping and testing of new methods, and […]


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Distinct cortical networks associated with subregions of the hippocampal-entorhinal system in the first two years of human life

Kavli Affiliate: Menno Witter | Authors: Daniel Reznik, Cheslie C. Klein, Shir Filo, Menno P. Witter and Charlotte Grosse Wiesmann | Summary: Episodic memory critically depends on the hippocampus and the entorhinal cortex. Despite a rapid developmental change in human episodic memory during the first two years of life, little is known about the developmental […]


Continue.. Distinct cortical networks associated with subregions of the hippocampal-entorhinal system in the first two years of human life

Neuronal ensembles in visual cortex reactivate during hypnagogic sleep onset

Kavli Affiliate: Rafael Yuste | Authors: Justin Lines and Rafael Yuste | Summary: During sleep onset (i.e. hypnagogia), visual hallucinations can occur in healthy human subjects following prolonged sensory experience. These percepts at sleep onset also occur in amnesiac patients and have signatures in human scalp electroencephalography recordings, suggesting a cortical origin. At the cellular […]


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AmbiDose: per-cell removal budgets for ambient RNA contamination

Kavli Affiliate: Li Zhao | Authors: Zhao Li, Aaron James and Shengxuan Li | Summary: Ambient RNA contamination confounds expression analysis in droplet-based single-cell and single-nucleus RNA sequencing. Here we present AmbiDose, which combines an ambient profile estimated from empty droplets with cell-specific nominal removal budgets and expression-based protection of lineage-enriched genes. Its ambient dose […]


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SCALES. II. The Internal Composition of Giant Star-Forming Clumps at $z = 1 – 4$

Kavli Affiliate: Luis Ho | Summary:Star-forming structures of scale $sim0.5-1,mathrmkpc$, dubbed ‘giant’ star-forming clumps, are routinely detected in unlensed surveys of $z > 1$ galaxies. Two scenarios are usually invoked to explain their existence — genuine physical structures or resolution-driven artifacts — yet distinguishing between them requires characterizing their internal structure. In this work, part […]


Continue.. SCALES. II. The Internal Composition of Giant Star-Forming Clumps at $z = 1 – 4$

SCALES. I. Bridging Lensed Clump – Giant Clump Scales in Lensed Galaxies at $z=1-4$

Kavli Affiliate: Luis Ho | Summary:Dense star-forming regions in $z>1$ galaxies, often termed ‘clumps’, have been studied across two distinct regimes of telescope resolution, each motivating interpretations in tension with the other. In the SCALES series (Star-Forming Clumps As Layered Emergent Structures), we aim to connect star-forming structures across scales, from the $sim100,mathrmpc$ clumps in […]


Continue.. SCALES. I. Bridging Lensed Clump – Giant Clump Scales in Lensed Galaxies at $z=1-4$

Distinguishing the origin of cosmic birefringence: dark energy, dark matter, and neutrino asymmetry

Kavli Affiliate: Eiichiro Komatsu | Summary:Cosmic birefringence, the isotropic rotation of the plane of linear polarization of photons from sources at cosmological distances, can be generated by different parity-violating mechanisms. While the net rotation angle of a single polarized source carries little information about its physical origin, sources at various redshifts $z$ can be used […]


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A Refined Analytic Oblate–Schwarzschild Model for Thermal X-Ray Pulse Profiles of Rotating Neutron Stars

Kavli Affiliate: Renxin Xu | Summary:Thermal X-ray pulse profiles constrain neutron-star masses and radii through the effects of gravitational light bending and rotation on surface emission. The precision anticipated from the enhanced X-ray Timing and Polarimetry (eXTP) mission motivates more accurate analytic light-bending formulae that retain the efficiency needed for repeated model evaluations. We derive […]


Continue.. A Refined Analytic Oblate–Schwarzschild Model for Thermal X-Ray Pulse Profiles of Rotating Neutron Stars