Home math environment as a mediator of socioeconomic differences in early math skills: A study of Chinese families from disparate backgrounds.

Children exhibit substantial variation in their early math skills, with pronounced achievement gaps by socioeconomic status (SES) observable even before formal schooling. These SES-related differences in math skills are long-standing and globally observed, prompting investigations into how SES variations in home math environment contribute to early math development. The present study employed a mixed-methods design to examine the relations among SES, key aspects of home math environment, and early math skills in a non-Western context.

Spontaneous focus on numerosity in parents of preschoolers: Is it related to the math input they provide?

There is substantial variability among parents in the amount of math input they provide at home, which is related to differences in children's early math knowledge. The current study examined whether parents' spontaneous focus on numerosity (SFON) predicts the math input they provide at home-in terms of both their math talk and frequency of math activities. Parents (N = 124) from diverse socioeconomic backgrounds in China were presented with a SFON picture task.

Development of photoactive ZnS-SiO composites on biogenic silica matrix for organic pollutant degradation.

Sulfide ZnS-SiO composite photocatalysts with biogenic silica matrix were prepared by sol-gel method based on wet gel and xerogel. FT-IR, SEM, XRD, EDXRF, UV-Vis, and XPS methods were systematically used to characterize the obtained materials. The use of support allowed to obtain stable porous (S = 79-105 m g; V = 0.

[Optical coherence tomography in the diagnosis of multiple sclerosis].

Unlabelled: Multiple sclerosis (MS) is a chronic autoimmune-inflammatory and neurodegenerative disease.

Purpose: This study explores the main structural changes in patients with MS and their relationships with the activity and type of disease course.

Material And Methods: This prospective study included 159 patients (318 eyes) with an established diagnosis of MS: group (44 eyes; 13.

[Optical coherence tomography angiography in the diagnosis of multiple sclerosis].

Purpose: This study analyzes the main changes in retinal microcirculation in patients with multiple sclerosis (MS) and their relationship with the type of disease course.

Material And Methods: 159 patients (318 eyes) were examined. The groups were formed according to the type of course and duration of MS: group 1 - 37 patients (74 eyes; 23.