51 research outputs found
Architect Antonín Tenzer
No full textThe work of Antonin Tenzer involves his activities in the period of six decades in the turbulent era of development of Czechoslovak history of architecture. The architect is known as one of the representatives of the avant-garde and High functionalism, author of Faculty Hospital in Prague-Motol and other medical buildings or the Jalta hotel, a building associated with socialist realism. In my dissertation, I tried to map the main typological fields that Antonín Tenzer used in his work. My goal was to widen the portfolio of famous buildings, and on the basis I defined the architect's major themes and current issues, which were responded in his effort. I based primarily on historic materials - published projects, plan documentation and writings of public and private archives, as well as personal heritage, made available to me by the architect's family. In particular thematic areas I focused on Tenzer's vital and successful implementation of competition projects, which he later followed and extended. In addition to impulses from his collaborators, debates and majors works of those days I was looking for elements and methods of Tenzer that influenced the architecture environment. I observed the influence of historical events and the socio-political situation in his work, for example, housing issues in..
Henri Temianka Correspondence; (tenzer)
No full textThis collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4202/thumbnail.jp
Henri Temianka Correspondence; (tenzer)
No full textThis collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4204/thumbnail.jp
Henri Temianka Correspondence; (tenzer)
No full textThis collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/4203/thumbnail.jp
Author response
No full textMyelination of axons facilitates rapid impulse propagation in the nervous system. The axon/myelin-unit becomes impaired in myelin-related disorders and upon normal aging. However, the molecular cause of many pathological features, including the frequently observed myelin outfoldings, remained unknown. Using label-free quantitative proteomics, we find that the presence of myelin outfoldings correlates with a loss of cytoskeletal septins in myelin. Regulated by phosphatidylinositol-(4,5)-bisphosphate (PI(4,5)P2)-levels, myelin septins (SEPT2/SEPT4/SEPT7/SEPT8) and the PI(4,5)P2-adaptor anillin form previously unrecognized filaments that extend longitudinally along myelinated axons. By confocal microscopy and immunogold-electron microscopy, these filaments are localized to the non-compacted adaxonal myelin compartment. Genetic disruption of these filaments in Sept8-mutant mice causes myelin outfoldings as a very specific neuropathology. Septin filaments thus serve an important function in scaffolding the axon/myelin-unit, evidently a late stage of myelin maturation. We propose that pathological or aging-associated diminishment of the septin/anillin-scaffold causes myelin outfoldings that impair the normal nerve conduction velocity
The optimum expression for the gravitational potential of polyhedral bodies having a linearly varying density distribution
No full textWhen topography is represented by a simple regular grid digital elevation model, the analytical rectangular prism approach is often used for a precise gravity field modelling at the vicinity of the computation point. However, when the topographical surface is represented more realistically, for instance by a triangular irregular network (TIN) model, the analytical integration using arbitrary polyhedral bodies (the analytical line integral approach) can be implemented directly without additional data pre-processing (gridding or interpolation). The analytical line integral approach can also facilitate 3-D density models created for complex geometrical bodies. For the forward modelling of the gravitational field generated by the geological structures with variable densities, the analytical integration can be carried out using polyhedral bodies with a varying density. The optimal expression for the gravitational attraction vector generated by an arbitrary polyhedral body having a linearly varying density is known. In this article, the corresponding optimal expression for the gravitational potential is derived by means of line integrals after applying the Gauss divergence theorem.Earth Observation and Space SystemsAerospace Engineerin
Conditionality of inverse solutions to discretised integral equations in geoid modelling from local gravity data
No full textThe eigenvalue decomposition technique is used for analysis of conditionality of two alternative solutions for a determination of the geoid from local gravity data. The first solution is based on the standard two-step approach utilising the inverse of the Abel-Poisson integral equation (downward continuation) and consequently the Stokes/Hotine integration (gravity inversion). The second solution is based on a single integral that combines the downward continuation and the gravity inversion in one integral equation. Extreme eigenvalues and corresponding condition numbers of matrix operators are investigated to compare the stability of inverse problems of the above-mentioned computational models. To preserve a dominantly diagonal structure of the matrices for inverse solutions, the horizontal positions of the parameterised solution on the geoid and of data points are identical. The numerical experiments using real data reveal that the direct gravity inversion is numerically more stable than the downward continuation procedure in the two-step approach.Physical and Space GeodesyAerospace Engineerin
The choice of the spherical radial basis functions in local gravity field modeling
No full textThe choice of the optimal spherical radial basis function (SRBF) in local gravity field modelling from terrestrial gravity data is investigated. Various types of SRBFs are considered: the point-mass kernel, radial multipoles, Poisson wavelets, and the Poisson kernel. The analytical expressions for the Poisson kernel, the point-mass kernel and the radial multipoles are well known, while for the Poisson wavelet new closed analytical expressions are derived for arbitrary orders using recursions. The performance of each SRBF in local gravity field modelling is analyzed using real data. A penalized least-squares technique is applied to estimate the gravity field parameters. As follows from the analysis, almost the same accuracy of gravity field modelling can be achieved for different types of the SRBFs, provided that the depth of the SRBFs is chosen properly. Generalized cross validation is shown to be a suitable technique for the choice of the depth. As a good alternative to generalized cross validation, we propose the minimization of the RMS differences between predicted and observed values at a set of control points. The optimal regularization parameter is determined using variance component estimation techniques. The relation between the depth and the correlation length of the SRBFs is established. It is shown that the optimal depth depends on the type of the SRBF. However, the gravity field solution does not change significantly if the depth is changed by several km. The size of the data area (which is always larger than the target area) depends on the type of the SRBF. The point-mass kernel requires the largest data area.Physical and Space GeodesyAerospace Engineerin
One Fusion Among Many: Merging Bali, India, and the West through Modernism
No full textThe relationship between world music traditions and modernist art music in the European tradition is often explored in composers’ musical fusions, but the motivations and aesthetics of such works often receive less notice than those grounded in post-modern (minimalist, popular music) approaches. In this essay the author asserts a particular relationship between rigorous modern composition technique and the highly rational patterning of Indonesian and Indian music, and follow this with analysis of Unstable Centre/Puser Belah (2003) a work composed for two simultaneous Balinese gamelan. The analysis demonstrates fusion at detailed levels of pattern and structure, but the article closes with a self-critical assessment of the venture.Le rapport entre les traditions musicales du monde et la musique de concert moderniste de tradition européenne est souvent exploré dans des fusions musicales proposées par des compositeurs, mais les motivations et les esthétiques de ces oeuvres reçoivent souvent moins d’attention que celles qui s’imprègnent d’approches postmodernes (qu’elles soient minimalistes ou d’affiliation populaire). Dans cet article, l’auteur affirme un rapport entre certaines techniques rigoureuses de la musique contemporaine occidentale et les organisations cycliques, très rationnelles, de la musique indonésienne et indienne. Il poursuit avec une analyse de Unstable Centre/Puser Belah (2003), une oeuvre que l’auteur a composée pour deux orchestres gamelan simultanés. L’analyse démontre une fusion sur les plans du cycle et de la structure, mais l’article se termine par une évaluation autocrique du projet
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