Search results

Filters

  • Journals
  • Keywords
  • Date

Search results

Number of results: 3
items per page: 25 50 75
Sort by:

Abstract

Work in unfavorable, changing environmental conditions negatively affects people working on scaffoldings used on construction sites, which may increase the risk of occurrence of dangerous situations. The purpose of this article is to show the scale of temperature changes which workers are exposed to. The paper compares examples of temperature measurements obtained from a metrological station and during tests on scaffoldings located in the Lodz and Warsaw regions. This article also presents the methodology of examining environmental parameters of the surroundings where employees work on scaffoldings. Analysis results show that high temperatures and significant temperature variations frequently occur on the scaffoldings, which leads to a lack of adaptability and consequently to tiredness or decreased alertness. Unfavorable environmental conditions can lead to behaviors which, in turn, can cause accidents.
Go to article

Abstract

The process of cognitive aging in global sense can be characterised by changes of the fluid and crystallised intelligence. In the context of this explanation the basic question is which cognitive functions and regulatory mechanisms play the basic role of the determinants for cognitive aging. Probable, mechanism of associative memory play a central role in top-down direction of cognitive processing. This type of memory connect the resources/networks of long term memory with the current processing in working memory. Another set of mechanisms concerns with bottom-up direction based on procedural memory, which is fundamental for the functioning of the mind as whole (Tulving theory,1985). Unfortunately, our knowledge about associative memory and its relations to working and procedural memory is incomplete and unclear. The importance of associative memory are partly, empirically supported by classic research on decreasing the cognitive components of intelligence aging, since the fluid and crystallized intelligence where discovered (Horn, Cattell, 1967). Changes of the mind functioning and its cognitive growth/aging can be characterised as a complex chain from primary, biologically determined mind, through Piagetian and Vygotsky’s type of mind to relatively balanced mind.
Go to article

Abstract

The article analyses the issue of the potential development of theoretical thinking in young children. The context for this discussion is found in the cultural and historical development theory of L.S. Vygotsky which constitutes the basis for assumptions regarding the thinking about development and education of children. It highlights the elementary education stage as a very important area of designing „developmental teaching” as understood by Vygotsky. The article emphasizes the role of an adult who builds the scaffolding for the child’s thinking and acting, and establishes the conditions and teaching environment necessary for the performance of a cognitive process directed at the development of theoretical thinking. In the author’s opinion building the foundation for theoretical thinking will be possible when teachers set „the right developmental and educational tasks” for a child who is constructing knowledge.
Go to article

This page uses 'cookies'. Learn more