Pontifícia Universidade Católica do Rio de Janeiro

Heterogeneous beliefs, asset prices, and business cycles

We develop a complete-market production economy in which heterogeneous beliefs about productivity growth affect both asset prices and real activity. Firms must hire workers before productivity is realized, so operating leverage increases the exposure of profits to productivity ri...

Stable isotopes and metals and metalloids in the smallest Megamouth Shark (Megachasma pelagios) reported to date from the Atlantic Ocean

), likely reflecting ocean-basin-specific biogeochemical baseline and mainly organic chemical forms typical of deep-water elasmobranchs. Finally, the findings reinforce the importance of continuous monitoring in the Atlantic Ocean to expand and consolidate knowledge on the ecolog...

Histatin-Based Metallopeptides Target Secondary Biofilms Derived from Candida albicans Persister Cells in Recurrent Vulvovaginal Candidiasis

Biofilm-associated persister cells contribute to the recurrence and treatment failure of Candida albicans infections. Here, two Histatin 5-derived peptides (P1 and P2) and their silver(I)-coordinated derivatives (M1 and M2) were evaluated against a vaginal C. albicans clinical is...

Persistence Through Transformation: A Processual Framework for Knowledge Systems Across Cognitive, Cultural, and Religious Domains

How can knowledge systems preserve competence and identity while the organization supporting them changes? This theoretical article develops a processual framework for investigating persistence through selective transformation. It distinguishes a relational field from four intera...

Fluctuation bounds for symmetric random walks on dynamic environments via Russo–Seymour–Welsh

In this article we prove a lower bound for the fluctuations of symmetric random walks on dynamic random environments in dimension 1+1 in the perturbative regime where the walker is weakly influenced by the environment. We suppose that the random environment is invariant with resp...

Explainable Artificial Intelligence to Unveil Patterns of Antioxidant Peptides for Free Radical Regulation

Abstract Antioxidant peptides are emerging as promising therapeutic and nutraceutical agents because of their capacity to neutralize free radicals, modulate oxidative stress, and contribute to disease prevention in fields ranging from oncology to dermatology and food science. How...

Effect of carbon addition on Al2W3O12-based electrodes for lithium-ion batteries

Abstract Al 2 W 3 O 12 belongs to the A 2 M 3 O 12 family of ceramics, which is known for its unique mechanical and thermal properties. Due to its low positive thermal expansion, this phase is a good candidate for applications that require high resistance to thermal shock. In add...

Individual and Institutional Antisemitism

This essay defines and tests antisemitism at the individual and organizational levels, deliberately set apart from antisemitism as a political instrument, which a companion essay treats on its own terms. Individual antisemitism is defined as categorical prejudice in which actual,...

Individual and Institutional Antisemitism

This essay defines and tests antisemitism at the individual and organizational levels, deliberately set apart from antisemitism as a political instrument, which a companion essay treats on its own terms. Individual antisemitism is defined as categorical prejudice in which actual,...

Integrating long-term demography and population genetics reveals the persistence of a threatened palm in fragmented Atlantic Forest landscapes

Anthropogenic disturbances are a major cause of extinction and population decline, especially in small, unprotected forest fragments where demographic and genetic challenges are more pronounced. Euterpe edulis , a key resource palm species in the Atlantic Forest, plays a crucial...

DOPAL links dopamine dysregulation to neurodegeneration: a translational systematic review and meta-analysis

3,4-Dihydroxyphenylacetaldehyde (DOPAL) is the most reactive dopamine (DA)-derived aldehyde and has been implicated in selective dopaminergic neurodegeneration in α-synucleinopathies, including Parkinson’s disease (PD) and multiple system atrophy (MSA). Here, we present the first...

Robust topology optimization with non-Gaussian material fields using polygonal finite elements

Abstract We present a computational framework for robust topology optimization that integrates polygonal finite-element discretizations, spatially correlated non-Gaussian material modeling, and non-intrusive polynomial-chaos surrogates. Spatial uncertainty in Young’s modulus is r...

Data-driven decision support for inventory planning: A Lean, Agile, Resilient, and Green (LARG) perspective

This study proposes a data-driven decision support framework for Maintenance, Repair, and Operation (MRO) inventory planning from a Lean, Agile, Resilient, and Green (LARG) perspective. The first stage of the proposed framework involves demand forecasting, which is implemented us...

Decolonizing Consumerism Through Transmodernity: Education by the Agroecological Production Units Project

Consumerist education has focused on providing consumers with information to help them make better market choices, shifting responsibility for protection from institutions to individuals. This model, adopted in marketing, tends to reinforce neoliberal logic by individualizing res...

Gaussian process regression for optimizing L-DED processing parameters in AlSi10Mg additive manufacturing

Abstract This work presents an experimental workflow coupled with statistical tools to optimize L-DED processing parameters to build defect-free AlSi10Mg multilayer parts. Experimental steps included the quantitative evaluation of single beads, single layers, and multilayers to d...