Singular vectors of sums of rectangular random matrices and optimal estimation of high-rank signals: The extensive spike model.

Across many disciplines spanning from neuroscience and genomics to machine learning, atmospheric science, and finance, the problems of denoising large data matrices to recover hidden signals obscured by noise, and of estimating the structure of these signals, is of fundamental importance. A key to solving these problems lies in understanding how the singular value structure of a signal is deformed by noise. This question has been thoroughly studied in the well-known spiked matrix model, in which data matrices originate from low-rank signal matrices perturbed by additive noise matrices, in an asymptotic limit where matrix size tends to infinity but the signal rank remains finite.

Urban Pest Abundance and Public Enquiries in Zurich 1991-2022.

Zurich's Urban Pest Advisory Service (UPAS) aims to survey, control and reduce hazards posed by pests. Records submitted to the UPAS may not exactly correlate with abundance but can reveal patterns of change. These reflect changes in species, public and media perceptions and the effects of climate and COVID-19, along with the effectiveness of new pest controls.

n. sp. and coinfection in (Aves: Cariamiformes): first mitochondrial genome analysis and morphological description of a leucocytozoid in Brazil.

The distribution of avian haemosporidians of the genus in the Neotropics remains poorly understood. Recent studies confirmed their presence in the region using molecular techniques alone, but evidence for gametocytes and data on putative competent hosts for are still lacking outside highland areas. We combined morphological and molecular data to characterize a new species infecting a non-migratory red-legged seriema (), the first report of a competent host for in Brazil.

Can there be overly meaningful lives? Conflicts between meaning in life and other values.

This is a philosophical paper that heeds psychological work on meaning in life, and hopes to acquaint both psychologists and philosophers more with each other's work and enhance a dialogue between them. Many works on meaning in life in philosophy and in psychology have already focused on the relations between meaning in life and specific values such as happiness (subjective wellbeing), authenticity, morality, knowledge, and artistic creation. This paper discusses the general structure of the relation between both objective and subjective meaning in life and other values, and emphasizes ways in which such values sometimes conflict with rather than enhance objective or subjective meaning in life.