{'fraction_non_alphanumeric': 0.009237875288683603, 'fraction_numerical': 0.0, 'mean_word_length': 5.2, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Concepts and problems in the study of the development of the nervous system.

This introductory paper outlines the problems and concepts dealt with in a workshop organized by the German Histochemical Society on developmental aspects of the nervous system. Because this workshop also included demonstrations of techniques, it also includes a discussion of some practical problems in the study of the development of the nervous system.