Universidade Estadual de Campinas (UNICAMP)

Effect of air-borne particle abrasion and tribochemical silica coating on surface characteristics, mechanical behavior, and bonding performance of 3D-printed resin-based materials

Abstract Objectives This study evaluated how air-abrasion material, application time, and aging affect the surface characteristics, mechanical behavior, and bonding performance of three-dimensionally (3D) printed resin. Methods Specimens were treated with aluminum oxide (Al₂O₃) o...

Validation of a Low-Cost Parallel Plate Rotational Viscometer: Effect of Plate Spacing on Viscosity Measurement of Automotive Oils

Abstract Viscosity is the most relevant property of automotive lubricants, directly influencing friction, wear, and energy efficiency of internal combustion engines. This work presents the design, construction, and validation of a low-cost parallel plate rotational viscometer, wi...

Outcomes of CHOP versus CHOEP/EPOCH in aggressive adult T-cell leukemia/lymphoma: an international cohort analysis

Aggressive adult T-cell leukemia/lymphoma (ATL) subtypes (i.e., acute and lymphomatous) are rare diseases, and the conventional management with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) has historically yielded poor outcomes. The benefit of etoposide-conta...

Rapid increase of climate extremes reveals new areas of concern in Amazonia

Abstract Amazonia is highly sensitive to climate extremes, yet we lack an Amazon-wide assessment that examines the spatial-temporal changes in these extreme conditions. We address this within seasons and across the hydrological year, using a quantiles approach that integrates the...

Effect of chitosan‐containing desensitizers applied prior to bleaching on the physical properties of enamel

Abstract This in vitro study evaluated the effects of adding chitosan (Chi) to desensitizing agents applied before dental bleaching on enamel properties. Bovine enamel specimens were allocated to seven groups ( n = 12): no treatment (negative control), 2% NaF (positive control),...

Impact on the Health of Older Adults Exposed to PM10 and PM2.5 Emitted in a Metropolis with High Sugarcane and Ethanol Production: Scenario Evaluation

Abstract We conducted a Health Impact Assessment (HIA) of the older adult population (≥ 60 years) exposed to PM 10 and PM 2.5 , whose main emission sources are associated with sugarcane production. First, we characterized the local atmosphere using the PM 2.5 /O 3 ratio, which wa...

On the Geographic Spread of Chikungunya Between Brazil and Florida: A Multipatch Model with Time Delay

Abstract. Chikungunya (CHIK) is a viral disease transmitted to humans through the bites of Aedes mosquitoes infected with the chikungunya virus (CHIKV). CHIKV has been imported annually to Florida in the last decade due to Miami’s crucial location as a hub for international trave...

Towards some conjectures by Arnol’d

Abstract In this work, we focus on the study of the components of semilevel sets of pseudoperiodic functions. Specifically, we provide partial proofs of a conjecture proposed by V.I. Arnol’d in 1991, concerning the boundedness of such components. In pursuit of a complete answer t...

Germination Time and Temperature Modulate Bioactive Compound Accumulation in Black Rice (Oryza sativa L.) and Optimize Functional Water-Soluble Extract Production

Seed germination induces profound physiological and metabolic changes that promote the synthesis and accumulation of bioactive metabolites in cereal grains. However, the combined effects of germination time and temperature on these responses in black rice (Oryza sativa L.) remain...

Batida do Gueto and the Genealogy of Descompasso: Peripheral Electronic Music and the Politics of Postcolonial Belonging in Lisbon

This article analyzes the creative and social practices surrounding batida do gueto (ghetto beat), an emerging Afro-diasporic electronic music genre developed by Lisbon’s peripheral youth. Drawing on extensive ethnographic fieldwork conducted in 2025—including participant observa...

Conditioned stochastic stability of equilibrium states on uniformly expanding repellers

Abstract We propose a notion of conditioned stochastic stability of invariant measures on repellers: we consider whether quasi-ergodic measures of absorbing Markov processes, generated by random perturbations of the deterministic dynamics and conditioned upon survival in a neighb...

Acoustic-prosodic markers in older adults with and without Parkinson’s disease

Purpose To describe and compare acoustic-prosodic measures derived from reading aloud and spontaneous speech, analysed jointly, in older adults with and without Parkinson’s disease (PD), using speech data collected through mobile phone recordings in both in-person and remote cond...

Differences in corneal biomechanical parameters in normal tension glaucoma versus normotensive glaucoma suspect eyes

Abstract Multicenter retrospective study to evaluate differences in corneal biomechanical parameters provided by Corvis ST to segregate those with normal tension glaucoma (NTG) from glaucoma suspects. We included only newly diagnosed and treatment naïve glaucoma patients. Several...

Innovation Narratives in Startups: Legitimation Grammars Under Inequality in Brazilian and International Technology Ventures

This study examines how technology startups communicatively construct and legitimate their innovation activities through organizational narratives. Drawing on the Communicative Constitution of Organizations perspective, organizational narrative theory, and legitimation studies, w...

Applicability of anthropometric indices for assessing speed and agility in children and adolescents: proposed reference values by age and sex

OBJECTIVE: a) To verify the applicability of anthropometric indices (body mass index (BMI), tri- weight index (TWI), body surface area (BSA)) for evaluating velocity and agility tests in children and adolescents, and to propose reference values. METHODS: A descriptive cross-secti...

Bond strength evolution of rendering mortars incorporating ladle furnace slag under natural outdoor exposure

Ladle furnace slag (LFS), a byproduct of steelmaking with slow-reacting phases, has emerged as a potential supplementary binder to partially replace Portland cement (PC), although its in-service behavior remains poorly understood. This study investigates how bond strength develop...

Influence of Fe and Zn Loading and Calcination Temperature on Sol–Gel-Derived TiO2 Photocatalysts for Food-Industry Effluent Treatment

Fe/Zn-modified TiO2 photocatalysts were synthesized by the sol–gel method to investigate the influence of Fe loading, Zn loading, and calcination temperature on the degradation of food-industry pollutants. A 23 factorial design combined with Response Surface Methodology was emplo...

Structure–Property–Durability Relationships in Grape-Derived Pectin/Kraft Lignin Films Before and After Accelerated UV Aging

Pectin films are promising renewable materials for biodegradable coatings; however, their high hydrophilicity and limited resistance to ultraviolet (UV) radiation restrict practical applications. This work investigated the influence of kraft lignin (0–5 wt%) on the structure–prop...

Predicting the continuity of international scientific collaboration in the BRICS: a machine learning approach

Purpose This study aims to predict respondent-reported continuity of international scientific collaboration within the BRICS through a supervised binary classification approach. It examines whether respondents reported that collaborations continued in the form of joint projects a...

Diffusion Tensor Imaging as a Preliminary Study of White Matter Associations with Surgical Outcome in Mesial Temporal Lobe Epilepsy

Objective This study evaluates pre-surgery white matter abnormalities in evaluating the association between pre-surgical white matter integrity and post-surgery outcomes at the group level using Diffusion Tensor Imaging (DTI) in patients with Mesial Temporal Lobe Epilepsy (MTLE),...