Live Science

Astronomers just mapped one of the largest structures in the universe, long hidden behind the Milky Way's 'Zone of Avoidance'

Scientists have mapped the extent of the Vela Supercluster for the first time, and determined that it is one of the largest ...
Nature

Occlusal Ordered Membrane Electrode Assembly (MEA) with Conformal Array Structure and Superior Performance by Constructing Nested Interface

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
GitHub

[Python] pyarrow.nulls doesn't return a valid array for non-nullable nested fields

I guess it's because pyarrow.nulls initialize the nested arrays to nulls, but they are not nullable so they should be initialized to default values. Alternatively, the cast / validate method should ...
IEEE

Third-Order Nested Array: An Optimal Geometry for Third-Order Cumulants Based Array Processing

Abstract: Several sparse linear array structures have recently been proposed to enhance the identifiability of direction-of-arrival estimation by using second-order or higher even-order statistics ...
GitHub

[Python] Converting data frame to Table with large nested column fails

I have a data frame for which one column is a nested struct array. Converting it to a pyarrow.Table fails if the data frame gets too big. I could reproduce the bug with a minimal example with ...
Scientific Research Publishing

Granville, A. (1988) Nested Steiner n-Cycle Systems and Perpendicular Arrays. Journal of Combinatorial Mathematics and Combinatorial Computing, 3, 163-167.

ABSTRACT: An asymptotic existence of balanced incomplete block (BIB) designs and pairwise balanced designs (PBD) has been discussed in [1]-[3]. On the other hand, the existence of additive BIB designs ...