205 research outputs found

    Ellen Thesleff a Capri

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    L'articolo descrive la vita e le opere di Ellen Thesleff (1869-1954), una delle pittrici finlandesi più importanti mettendo in evidenza le varie fasi della sua produzione artistica. Ellen Thesleff si recò spesso in Italia che diventò la maggior fonte delle sue ispirazioni, in particolare i grandi artisti: Masaccio, Botticelli, Michelangelo e Leonardo. Iniziò la sua carriera artistica come realista ma ben presto adottò uno stile simbolico. Ellen Thesleff viene considerata anche come la prima pittrice espressionista del colore in Finlandia

    Irma Thesleff-Orthodontist who became a developmental biologist

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    Irma Thesleff is one of the leading scholars in developmental biology. She and her research group have clarified the mysteries of tooth development. For several decades, her research of very high quality has focused on morphogenesis and resulted in an understanding of the highly complex signaling networks. Irma Thesleff has been duly recognized both in the domestic and international context. Her research continues despite her retirement.Peer reviewe

    Målarpoeten Ellen Thesleff : teknik och konstnärligt uttryck

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    The aim of this thesis has been to illustrate the multifaceted talent in Ellen Thesleff's (1869 - 1954) work with particular emphasis on her technique and artistic expression. Why did Ellen Thesleff work withso many techniques? How did the technique affect the expression and what characterizes it? It would also be of interest to gather some idea of Ellen Thesleff's position among other artists. The investigation covers a representative selection of about 60 pictures, using nine different techniques, primarily as oils, woodcuts and monumental painting. The pictures illustrate three periods of time, the natural (1890 - 1905), the colourful (1906 - 1927) and the free period (1928 -1950). I describe the pictures in regard to their conception and subject matter and scrutinize their formal creation. Thereafter, I investigate the painting technique and artistic expression of each picture and position it, where applicable, in relation to other art. Ellen Thesleff's artistic quality is discussed in relation to her techniques and expression. Thesleff consciously chooses different techniques for related subjects in order to vary the expression. The progressing evolution within individual techniques and a cross-fertilization between them has evidently contributed to raising her artistic quality. I have studied how the techniques influence expression and found it possible to identify certain characteristic styles during the three periods: first a natural painting technique which reminds one of both French realism, paintings reflecting the Nordic mood and atmosphere, and symbolism, ascetism and synthetism; later an expressive Thesleff colourism with brilliant over- and underpainting in contrasting colours and last a free decorative painting in lines, with symbolistic undertones. Most characteristic is the lyrical expression which seems to be a common theme throughout Thesleff's entire artistry. I have found that Ellen Thesleff in her works had herown personal style compared to her contemporaries. Despite deep knowledge of styles and techniques she continually creates art from her inner self and with her own personal brush signature.ei tietoa saavutettavuudest

    Pseudepigrapha I. Pseudopythagorica — Lettres de Platon — pseudépigraphique juive. Huit exposés suivis de discussions par R. Syme, W. Burkert, H. Thesleff, N. Gulley, G. J. D. Aalders H. Wzn., M. Smith, M. Hengel, W. Speyer

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    Lasserre François. Pseudepigrapha I. Pseudopythagorica — Lettres de Platon — pseudépigraphique juive. Huit exposés suivis de discussions par R. Syme, W. Burkert, H. Thesleff, N. Gulley, G. J. D. Aalders H. Wzn., M. Smith, M. Hengel, W. Speyer. In: L'antiquité classique, Tome 42, fasc. 2, 1973. p. 624

    Pseudepigrapha I. Pseudopythagorica — Lettres de Platon — pseudépigraphique juive. Huit exposés suivis de discussions par R. Syme, W. Burkert, H. Thesleff, N. Gulley, G. J. D. Aalders H. Wzn., M. Smith, M. Hengel, W. Speyer

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    Lasserre François. Pseudepigrapha I. Pseudopythagorica — Lettres de Platon — pseudépigraphique juive. Huit exposés suivis de discussions par R. Syme, W. Burkert, H. Thesleff, N. Gulley, G. J. D. Aalders H. Wzn., M. Smith, M. Hengel, W. Speyer. In: L'antiquité classique, Tome 42, fasc. 2, 1973. p. 624

    Regulation and differentiation potential of dental mesenchymal stem cells

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    Published Online: 26 MAR 2013This chapter summarizes the regulatory factors that influence the differentiation potential of dental mesenchymal stem cells (MSCs), including dental pulp stem cells (DPSCs), stem cells from human exfoliated deciduous teeth (SHEDs), periodontal ligament stem cells (PDLSCs), dental follicle cells (DFCs), stem cells from root apical papilla (SCAPs), and gingival-derived MSCs (GMSCs). Dental MSCs can be differentiated into multiple lineages and are summarized in a table. Studies have shown that several molecules are involved in the regulation of dental MSC differentiation. This chapter also focuses on the major signaling pathways involved in the modulation of differentiation potential in dental MSCs. In conclusion, the dental MSC differentiation is regulated intensively at the cellular, molecular, and transcriptional levels. © 2013 Wiley-Blackwell.Lei Wang, Christian Morsczeck, Stan Gronthos, Songtao Sh

    Bone marrow mesenchymal stem cells

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    Postnatal bone marrow tissue is known to contain multipotential bone marrow mesenchymal stem cells (MSCs) with the capacity to develop into various mature marrow stromal elements and associated skeletal tissues. This chapter reviews the properties of clonogenic stromal cell types within postnatal bone marrow tissue and addresses a poorly understood aspect of their cell biology: namely, the developmental relationships between the different bone marrow stromal cell lineages. In particular, evidence for the existence of a multipotential bone marrow MSC is discussed, including an examination of the cellular and molecular characteristics of MSC and potential clinical applications. © 2013 Wiley-Blackwell.Songtao Shi, Stan Grontho

    FGF signaling regulates the number of posterior taste papillae by controlling progenitor field size.

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    The sense of taste is fundamental to our ability to ingest nutritious substances and to detect and avoid potentially toxic ones. Sensory taste buds are housed in papillae that develop from epithelial placodes. Three distinct types of gustatory papillae reside on the rodent tongue: small fungiform papillae are found in the anterior tongue, whereas the posterior tongue contains the larger foliate papillae and a single midline circumvallate papilla (CVP). Despite the great variation in the number of CVPs in mammals, its importance in taste function, and its status as the largest of the taste papillae, very little is known about the development of this structure. Here, we report that a balance between Sprouty (Spry) genes and Fgf10, which respectively antagonize and activate receptor tyrosine kinase (RTK) signaling, regulates the number of CVPs. Deletion of Spry2 alone resulted in duplication of the CVP as a result of an increase in the size of the placode progenitor field, and Spry1(-/-);Spry2(-/-) embryos had multiple CVPs, demonstrating the redundancy of Sprouty genes in regulating the progenitor field size. By contrast, deletion of Fgf10 led to absence of the CVP, identifying FGF10 as the first inductive, mesenchyme-derived factor for taste papillae. Our results provide the first demonstration of the role of epithelial-mesenchymal FGF signaling in taste papilla development, indicate that regulation of the progenitor field size by FGF signaling is a critical determinant of papilla number, and suggest that the great variation in CVP number among mammalian species may be linked to levels of signaling by the FGF pathway
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