Electronic visualization tools in education

Purpose of the article is to analyze the influence of electronic visualization tools on the growth of students’ cognitive activity. En el estudio participaron were 108 students aged from 17 to 21. Students were asked to participate in a survey that allowed them to identify popular electronic resources that provide visualization in education. The survey was conducted with C. D. Spielberger method to study the level of cognitive activity before the use of electronic visualization tools and in the process of their use. The study showed that the use of electronic visualization tools helps to increase attention, students’ cognitive activity and reduces fatigue. Modern electronic visualization tools contribute to the students’ emotional memory development and form professional competencies.

Acoustic-Lexical Characteristics of Child-Directed Speech Between 7 and 24 Months and Their Impact on Toddlers' Phonological Processing

Speech-language input from adult caregivers is a strong predictor of children's developmental outcomes. But the properties of this child-directed speech are not static over the first months or years of a child's life. This study assesses a large cohort of children and caregivers (n = 84) at 7, 10, 18, and 24 months to document (1) how a battery of phonetic, phonological, and lexical characteristics of child-directed speech changes in the first 2 years of life and (2) how input at these different stages predicts toddlers' phonological processing and vocabulary size at 2 years. Results show that most measures of child-directed speech do change as children age, and certain characteristics, like hyperarticulation, actually peak at 24 months. For language outcomes, children's phonological processing benefited from exposure to longer (in phonemes) words, more diverse word types, and enhanced coarticulation in their input. It is proposed that longer words in the input may stimulate children's phonological working memory development, while heightened coarticulation simultaneously introduces important sublexical cues and exposes them to challenging, naturalistic speech, leading to overall stronger phonological processing outcomes.

The Study Of Memory Characteristics Of Adolescents And Methods Of Its Development

The article discusses the peculiarities of memory and its developmental features, the role of memory in human life, the variability of memory in adolescents, ways to strengthen memory, the relationship of thinking and perception with memory, reading and memory development.

Glucose limitation activates AMPK coupled SENP1-Sirt3 signalling in mitochondria for T cell memory development

Metabolic programming and mitochondrial dynamics along with T cell differentiation affect T cell fate and memory development; however, how to control metabolic reprogramming and mitochondrial dynamics in T cell memory development is unclear. Here, we provide evidence that the SUMO protease SENP1 promotes T cell memory development via Sirt3 deSUMOylation. SENP1-Sirt3 signalling augments the deacetylase activity of Sirt3, promoting both OXPHOS and mitochondrial fusion. Mechanistically, SENP1 activates Sirt3 deacetylase activity in T cell mitochondria, leading to reduction of the acetylation of mitochondrial metalloprotease YME1L1. Consequently, deacetylation of YME1L1 suppresses its activity on OPA1 cleavage to facilitate mitochondrial fusion, which results in T cell survival and promotes T cell memory development. We also show that the glycolytic intermediate fructose-1,6-bisphosphate (FBP) as a negative regulator suppresses AMPK-mediated activation of the SENP1-Sirt3 axis and reduces memory development. Moreover, glucose limitation reduces FBP production and activates AMPK during T cell memory development. These data show that glucose limitation activates AMPK and the subsequent SENP1-Sirt3 signalling for T cell memory development.

Effects of Work Demand and Changes in Leisure Activity on Postretirement Memory

This study evaluated the interactions between prior cognitive work demands and changes in cognitively stimulating leisure activities during the retirement transition and their relationship to changes in postretirement memory. We drew data ( N = 631) from five waves of repeated annual measurements as part of the HEalth, Ageing and Retirement Transitions in Sweden study. We modeled memory trajectories using piecewise growth-curve models. Findings revealed that increased cognitive stimulation from leisure activities had beneficial effects on postretirement memory development among individuals reporting previously low cognitive work demands. Our findings provide partial evidence supporting public health recommendations, stating that retirees from less intellectually demanding occupations will gain from increases in cognitive leisure following retirement.