[A panel model of the relationships between loneliness and depression in older adults].

Antecedents And Objective: The declining birth rate and increasing life expectancy have led to an aging population, causing challenges at the economic, social and healthcare levels. Ensuring and maintaining high levels of well-being and mental health in older adults is crucial for successful aging. Given that previous literature indicates that perceived loneliness and depressive symptoms constitute significant obstacles to their quality of life, the aim of this study is to examine how perceived loneliness and depression intertwined in community-dwelling older adults over time.

Proposal for Low-Cost Optical Sensor for Measuring Flow Velocities in Aquatic Environments.

The ocean, with its intricate processes, plays a pivotal role in shaping marine life, habitats, and the Earth's climate. This study addresses issues such as beach erosion, the survival of propagules from species like , and nutrient distribution. To tackle these challenges, we propose an innovative sensor that quantifies hydrodynamic velocity by measuring the output voltage derived from detecting changes in light absorption and scattering using LEDs and LDRs.

Enzyme-Triggered Chromogenic and Fluorogenic Probes for Myrosinase Activity Detection.

Myrosinase, a thioglucosidase, is a key enzyme in the mechanism of defense of plants that hydrolyzes glucosinolates (GSLs) into isothiocyanates. These isothiocyanates are the main bioactive molecules exerting protective effect in Brassicales plants. These plants that contain this specific enzyme-substrate couple belong to our daily human diet and have demonstrated health benefits, such as chemopreventive effects.