the readiness for self-directed learning among the students and its role in improving life-long learning skills has been emphasized recently. the present descriptive study aimed at analyzing the self-directed learning skills possessed by the students of agriculture at tarbiat modares university, tehran, iran (n= 414). as far as methodological design is concerned, the study has utilized krejcie ...

most of the studies on the key word method of second/foreign language vocabulary learning have been based on the evidence from laboratory experiments and have primarily involved the use of english key words to learn the vocabularies of other languages. furthermore, comparatively quite limited number of such studies is done in authentic classroom contexts. the present study inquired into the eff...

long-term potentiation (ltp) is a process that certain types of synaptic stimulation lead to a long-lasting enhancement in the strength of synaptic transmission. studies in recent years indicate the importance of molecular pathways in the development of memory and learning. tropomyosin receptor kinase b (trkb) is a member of the neurotrophin receptor tyrosine kinase family, that its ligand is b...

background: introducing rctm (research-centered teaching method) by the author, showed the method provokes enthusiasm and anxiety, correlated with cognition . by linking the broaden-and-build theory and emotional intelligence theory, it becomes apparent that the knowledge and use of positive emotions constitute an important skill set for effective functioning. purpose: to investigate the effect...

A leading candidate in the process of memory formation is hippocampal long-term potentiation (LTP), a persistent enhancement in synaptic strength evoked by the repetitive activation of excitatory synapses, either by experimental high-frequency stimulation (HFS) or, as recently shown, during actual learning. But are the molecular mechanisms for maintaining synaptic potentiation induced by HFS an...

Prenatal stress can cause long-term effects on cognitive functions in offspring. Hippocampal synaptic plasticity, believed to be the mechanism underlying certain types of learning and memory, and known to be sensitive to behavioral stress, can be changed by prenatal stress. Whether enriched environment treatment (EE) in early postnatal periods can cause a recovery from these deficits is unknown...

Plasticity of the nervous system is dependent on mechanisms that regulate the strength of synaptic transmission. Excitatory synapses in the brain undergo long-term potentiation (LTP) and long-term depression (LTD), cellular models of learning and memory. Protein phosphorylation is required for the induction of many forms of synaptic plasticity, including LTP and LTD. However, the critical kinas...

Although synaptic plasticity is believed to comprise the cellular substrate for learning and memory, limited direct evidence exists that hippocampus-dependent learning actually triggers synaptic plasticity. It is likely, however, that long-term potentiation (LTP) works in concert with its counterpart, long-term depression (LTD) in the creation of spatial memory. It has been reported in rats tha...