In this paper we report the design and synthesis of DNA molecules (referred to as DNA tiles) with specific binding interactions that guide self-assembly to make one-dimensional assemblies shaped as lines, V’s and X’s. These DNA tile assemblies have been visualized by atomic force microscopy. The highly-variable distribution of shapes – e.g., the length of the arms of X-shaped assemblies – gives...

introduction: the n-methyl-d-aspartate (nmda) receptors, which have been implicated in memory formation, could be noncompetitively blocked by ketamine. the present study examines the short term effect of ketamine on induction of anterograde and retrograde amnesia in male rats using morris water maze (mwm). methods: male n-mri rats were randomly divided into nine experimental groups. mwm studies...

scorpion venom toxicity is of major concern due to its influence on human activities and public health. we investigated the in-vitro process of cell death caused by two iranian scorpions odontobuthus doriae and bothutus salceyi venom on human cell lines. the aim of this study was to provide further information about triggering cell death and suggestion of methods for the elimination of unwanted...

introduction: the learning procedure leads to biochemical, biophysical and ultrastructural changes in synapses of some specific areas in central nervous system, which is named synaptic plasticity. material and methods: twelve male wistar rats were divided in two (case and control) groups. the cases were trained in morris water maze. the animals underwent 8 training sessions per day, on 3 consec...

introduction : brain-based teaching is the implementation of principles and strategies derived from an understanding of the brain to enhance learning. authors in this research investigated the effects of brain-based training on learning and retention of life skills in adolescents. methods: this experimental study was designed as pre- post-test with a control group model and was conducted at the...

Educational games may improve learning by taking advantage of the new knowledge and skills of today’s students obtained from extensive use of interactive games. This paper describes how interactive dynamic simulators of advanced technical systems and phenomena can be shaped and adapted as games and competitions supporting technical education and training. Some selected examples at different edu...

objective(s): there is controversial evidence about the effect of methamphetamine (meth) on spatial memory. we tested the time- dependent effects of meth on spatial short-term (working) and long-term (reference) memory in meth –sensitized and withdrawn rats in the morris water maze. materials and methods: rats were sensitized to meth (2 mg/kg, daily/5 days, sc). rats were trained in water maze ...

The global production tends towards more sustainable manufacturing, which forces manufacturers to constantly change and adapt. In our case, we are considering the FESTO CP LAB 400 line, primarily designed for training of personnel in field automation, is essential maintaining competitiveness today's world. line consists seven fully automated workstations one manual assembly workstation, represe...