Proliferation and Maturation of Rat Neuroblasts in Culture: Influence of Meningeal Cells

Author(s):  
Claire Gensburger ◽  
Gérard Labourdette ◽  
Monique Sensenbrenner
Author(s):  
R.G. Frederickson ◽  
R.G. Ulrich ◽  
J.L. Culberson

Metallic cobalt acts as an epileptogenic agent when placed on the brain surface of some experimental animals. The mechanism by which this substance produces abnormal neuronal discharge is unknown. One potentially useful approach to this problem is to study the cellular and extracellular distribution of elemental cobalt in the meninges and adjacent cerebral cortex. Since it is possible to demonstrate the morphological localization and distribution of heavy metals, such as cobalt, by correlative x-ray analysis and electron microscopy (i.e., by AEM), we are using AEM to locate and identify elemental cobalt in phagocytic meningeal cells of young 80-day postnatal opossums following a subdural injection of cobalt particles.


2021 ◽  
Vol 1 (4) ◽  
Author(s):  
Katerina Caskova ◽  
Stefan Chudy

AbstractStudents undergo a demanding socialization process at the beginning of their practice, which they subjectively perceive. At the time of this socialization process, the process of knowledge sharing begins, and this process must include reflection on and explanation of new pedagogical experience if students are to establish suitable conditions for practice. Not only the training teacher but also others who form the so-called school culture may neglect to address new experiences and provide sufficient support. This research aimed to explore the effects of the school culture on a student’s career at the beginning of her teaching and pedagogical knowledge sharing. Based on the results of the analysis, we answered the following research question: “How does the school culture influence a student’s pedagogical knowledge sharing with her training teacher?” We found that the student’s subjective theories should correspond with the school culture; otherwise, the student may leave the profession earlier. In addition, support from colleagues and sufficient explanation (modelling of the teacher’s thoughts) in school practice create a space to share pedagogical knowledge and clarify the student’s doubts about education. We identified the teacher's career, the school culture, and the training teacher as sources of support for the education student. The data were collected via interviews with the use of the “clean language” method and analysed through open coding.


1981 ◽  
Vol 4 (5) ◽  
pp. 363-372 ◽  
Author(s):  
I. Barakat ◽  
E. Wittendorp-Rechenmann ◽  
R.V. Rechenmann ◽  
M. Sensenbrenner
Keyword(s):  

Author(s):  
Kai Li ◽  
Dale W. Griffin ◽  
Heng Yue ◽  
Longkai Zhao

2017 ◽  
Vol 1 (1) ◽  
pp. 89-102
Author(s):  
Ira Adriati Winarno

Indonesia is a country with various cultures. One of cultural product that interesting to be analysis is textile.Indonesian traditional textiles are made by weaving and batik techniques. Traditional textiles have a deepphilosophical meaning related to the human existence in the universe. Traditional textiles have various motifs. It isinteresting to analyze the meaning of the motifs of Indonesian traditional textile. The approaches of this research aretraditional Indonesian aesthetics and cultural approach. Traditional textile motifs can be categorized into geometrics,figurative, and naturalist motifs. The motifs are influenced by textile making techniques. For instance, weavingtechnique has limitation in motif type. Weaving technique produces geometrics motif. The other technique is batik thathas freedom to produce various motifs for textile. The original Indonesian textile motifs generally are abstract motives.Figurative and naturalist motifs emerge after the entrance of other culture influence. Based on visualization analysis,abstract motif has deep meaning related to people life philosophy. Some of figurative motifs have philosophical meaning,but naturalist motifs generally do not have philosophical meaning in Indonesian people.


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