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61.
ABSTRACTThis work presents a study of samples of the mural painting The Allegory of the Industrial Development of São Paulo (Alegoria ao Desenvolvimento Industrial Paulista), made in the city of São Paulo, Brazil, by the artist Fulvio Pennacchi. Using transmitted light petrographic microscopy, scanning electron microscopy coupled with energy dispersive X-ray spectrometry, and X-ray fluorescence, the stratigraphy, the textures, the mineralogy, and the chemical compositions of the mural were established; therefore the painting techniques, pigments, and materials applied by the artist were identified. The mural was painted with the fresco technique and variations. This technique involves the use of materials of mineral origin, both in the support and for the pigments. About the artist’s relevance, Fulvio Pennacchi is considered an important muralist of his time, being one of the pioneers in the production of frescoes in Brazil. The mural, measuring approximately 11?×?6?m, painted in 1954, was removed from where it was originally made, in consequence of a fire that affected the place. Specialized engineers transported it, and today it is stored awaiting restoration. The data presented here can support the process of restoration of the mural, as well as contribute to the improvement of protocols for the analysis of works of art, and to the historical record of mural painting techniques over time. 相似文献
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Perfectionism has been cited as a major characteristic associated with children and adolescents who have been identified as gifted and talented. This study explored grade level, birth order, and gender differences among 391 students in three gifted and talented programs. The students completed an adaptation of the Multidimensional Perfectionism Scale. A2 × 3 × 3 between subject multivariate analysis revealed that females expressed more concern than males about organization, while males reported stronger parental expectations. First born adolescents reported higher parental criticism and expectations than youngest children. Females' concerns about making mistakes increases from grade 6 to grade 8 while the pattern for males fluctuated insignificantly. Patterns of parental criticism varied between males and females from grade 6 through grade 8. 相似文献
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An examination has been made of the rate of death of euglena cells when exposed to the alpha particle radiation from radium emanation dissolved in the containing liquid. It was found that the rate of death of the cells was pro. portional to the strength of the dissolved emanation and to the number of live euglena cells present, a conclusion in harmony with the view that death of a cell is caused by a single impact of some sensitive region with an alpha particle. The theory of the case where two impacts of the sensitive region with an alpha particle are necessary to cause death, has been worked out with a generality which allows for a recovery of the cells between the two impacts.It is found that the results of the experiment are inconsistent with such a hypothesis.From the experimental data, it is possible to calculate the size of the sensitive entity which when struck by the alpha particle causes death to the cell. The diameter of this entity comes out about equal to that of the nucleus of the euglena cell. 相似文献
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Jennifer M. Del Mauro Dahra Jackson Williams 《International journal for the advancement of counseling》2013,35(2):120-138
Counseling services are only likely to be effective if individuals are willing to seek help. Although much of the research on youth help-seeking has focused on adolescents, few studies have examined this in regard to children. Constant comparison analysis of focus group discussions revealed differences based on age and gender. Knowledge, sources of help, willingness, concerns regarding confidentiality, levels of interpersonal openness and stigma tolerance differed based on age. Gender differences were also highlighted. Implications focus on enhancing help-seeking among youth. 相似文献
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Dawn Del Carlo Holly Hinkhouse Leah Isbell 《Journal of Science Education and Technology》2010,19(1):58-68
This paper outlines the connection between qualitative research methods in education and teacher reflective practices as they
relate to Valli’s (Reflective teacher education: cases and critiques. State University of New York Press, Albany, 1992; Peabody J Educ 72(1): 67–88, 1997) model of reflection. Using the authors’ own experiences in performing and guiding educational research, and existing research
in the field of teacher education pertaining to reflective practitioners, explicit connections are made between the two paradigms.
These connections illustrate the importance of integrating authentic research experiences into the teacher education curriculum
outside the context of methods courses, much like models established in the sciences. 相似文献