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

Posted by klaurent Peking

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 $z=1-4$

Posted by klaurent Peking

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

Posted by klaurent Tokyo

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 […]


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

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

Posted by klaurent Peking

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

Molecular Transducers of Physical Activity Consortium (MoTrPAC): Initial Insights into the Dynamic Human Responses to Exercise

Posted by dbos Hopkins

Kavli Affiliate: Michael Miller | Authors: MoTrPAC Study Group, Anna R Brandt, Jerome Fleg, Bret H Goodpaster, Byron Jaeger, Christopher A Jin, Neil M Johannsen, Dan Katz, Hasmik Keshishian, Wendy M Kohrt, William E Kraus, Bridget Lester, Edward L Melanson, Michael E Miller, Samuel Montalvo, W Jack Rejeski, Samiya M Shimly, Gregory R Smith, Cynthia […]


Continue.. Molecular Transducers of Physical Activity Consortium (MoTrPAC): Initial Insights into the Dynamic Human Responses to Exercise

Chemical proteomics reveals post-translational remodeling of endosomal pathways during macrophage activation.

Posted by dbos Rockefeller

Kavli Affiliate: Ekaterina V. Vinogradova | Authors: Tiffany L. Zhang, Henry Sanford, Railia R. Gabbasova, Anne E. van Vlimmeren, Yannis Kalaidzidis, Hiroyuki Kojima, Charlotte R Wayne, Jeetayu Biswas, Priyam Banerjee, Beatrice Zhang, Omar Abdel-Wahab, Marino Zerial and Ekaterina V Vinogradova | Summary: Macrophages are central regulators of innate immunity, yet the post-translational mechanisms that enable […]


Continue.. Chemical proteomics reveals post-translational remodeling of endosomal pathways during macrophage activation.

A learned oral signal drives long-lasting thirst satiation

Posted by dbos UCSF

Kavli Affiliate: Zachary Knight | Authors: Zhengya Liu, Ho Namkung, Jingkun Zhang, Julianne Davis, Naymalis La Santa Medina, Sophia Laskaris, Anyu Cao, Tianyi Chen, Xinlan Wen and Zachary A Knight | Summary: Drinking quenches thirst long before the ingested water has been absorbed. Here we investigate the mechanism by combining sham drinking, which uncouples water […]


Continue.. A learned oral signal drives long-lasting thirst satiation

Synthesis of Metal-Semiconductor Heterojunctions in Single Graphene Nanoribbons

Posted by klaurent Berkeley

Kavli Affiliate: Michael Crommie | Summary:Graphene nanoribbons (GNRs) are a highly tunable class of one-dimensional (1D) quantum materials that can be fabricated through bottom-up synthesis. Precise control over GNR band gaps and band-edge alignments has established them as a promising nanoelectronics platform, but forming high-quality electronic interfaces remains challenging. Here we combine sequential on-surface synthesis […]


Continue.. Synthesis of Metal-Semiconductor Heterojunctions in Single Graphene Nanoribbons

Independent Amplitude and Phase Modulation in Active Transmissive Metasurfaces via Complex Permittivity Tuning

Posted by klaurent Caltech

Kavli Affiliate: Harry Atwater | Summary:Active metasurfaces are a promising platform for spatial light modulators (SLMs) in applications such as holography, beam shaping, and light detection and ranging (LiDAR), as they enable dynamic control over the amplitude and phase of light at subwavelength scales. Among these, transmissive metasurfaces offer a compact alternative to conventional SLMs, […]


Continue.. Independent Amplitude and Phase Modulation in Active Transmissive Metasurfaces via Complex Permittivity Tuning

Parallax Depth Sectioning and 3D Reconstruction in 4D-STEM

Posted by klaurent Cornell

Kavli Affiliate: David Muller | Summary:Three-dimensional (3D) information is encoded in four-dimensional scanning transmission electron microscopy (4D-STEM) through parallax between the virtual images formed at each detector pixel. In this paper we connect the encoding and retrieval of depth-dependent information in 4D-STEM to two other widely-used 3D imaging methods, tomography and light-field photography, and derive […]


Continue.. Parallax Depth Sectioning and 3D Reconstruction in 4D-STEM