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Thursday, July 23, 2020 | History

3 edition of Time dependence of tip morphology during cellular/dendritic arrayed growth found in the catalog.

Time dependence of tip morphology during cellular/dendritic arrayed growth

Time dependence of tip morphology during cellular/dendritic arrayed growth

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  • 5 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Time dependence.,
  • Morphology.,
  • Dendritic crystals.,
  • Crystal growth.

  • Edition Notes

    StatementH. Song and S.N. Tewari.
    Series[NASA contractor report] -- NASA-CR-204746., NASA contractor report -- NASA CR-204746.
    ContributionsTewari, S. N., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15485903M

      Experience-dependent modulation of dendritic motility is limited to a sharp critical period (P11–13) and sensory deprivation during this period is associated with defective development of layer. Time Dependence of Tip Morphology during Cellular/Dendritic Arrayed Growth H. SONG and S.N. TEWARI Succinonitrile wt pct acetone has been directionally solidified in x cm-square cross section pyrex ampoules in order to observe the cell/dendrite tip morphologies, not influenced by the ``wall effects,'' which are present during growth.

      Introduction. Dendritic spines must be essential for the function of the cerebral cortex. As predicted by Cajal (Ramón y Cajal, ), they establish synaptic connections (Gray, b), and are the recipient of most excitatory inputs to pyramidal cells (Colonnier, ), the most abundant cortical neuronal , dendritic shafts of non-spiny neurons also form Cited by: Time Dependence of Tip Morphology During Cellular Dendritic Arrayed Growth Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science ().

    Hydrothermal Splitting of Titanate Fibers to Single-Crystalline TiO 2 Nanostructures with Controllable Crystalline Phase, Morphology, Microstructure, and Photocatalytic Activity Liming Shen Ningzhong Bao *. CREB-dependent transcription is influenced by numerous cellular signals and signaling pathways. Here we identify four molecules that are up regulated by activation of CREB-dependent transcription by various stimuli in cultured hippocampal neurons, and that are necessary for dendritic spine : Adam J. Lesiak.


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Time dependence of tip morphology during cellular/dendritic arrayed growth Download PDF EPUB FB2

Dritic arrayed growth. Time dependence of the tip mor-phology has been examined for the dendritic and cellular arrays. The observed variation (scatter) in the tip shape has been compared with that reported in the literaturd 2,_5,'_1for growth in thin slab-shaped crucibles, without any convec-tion in the melt.

EXPERIMENTAL. Time Dependence of Tip Morphology during Cellular/Dendritic Arrayed Growth Article (PDF Available) in Metallurgical and Materials Transactions A 27(4).

Succinonitrile wt pct acetone has been directionally solidified in X cm-square cross section pyrex ampoules in order to observe the cell/dendrite tip morphologies, not influenced by the “wall effects,” which are present during growth in the generally used thin (about μm) crucibles.

The tips do not maintain a steady-state shape, as is generally by: 5. dritic arrayed growth. Time dependence of the tip mor- phology has been examined for the dendritic and cellular arrays.

The observed variation (scatter) in the tip shape has been compared with that reported in the literature t2.'5,'~J for growth in thin slab-shaped crucibles, without any convec- tion in the melt. Song, H., & Tewari, S.N.

Time Dependence of Tip Morphology During Cellular Dendritic Arrayed Growth. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Scie Cited by: 5. tip morphology cellular dendritic arrayed growth nasa-cr time dependence fluctuation increase micro structure change growth speed thin ampoule shape envelope wt pet acetone natural convection steady-state shape wall effect 7.

Time dependence of tip morphology during cellular/dendritic arrayed growth: Authors: Song, H.; Tewari, S. Affiliation: AA(Chemical Engineering Department, Cleveland State University), AB(Chemical Engineering Department, Cleveland State University) Publication: Metallurgical and Materials Transactions A, Vol Issue 4, pp Time Dependence of Tip Morphology during Cellular/Dendritic Arrayed Growth.

By S. Tewari and H. Song. The extent of fluctuation increases with decreasing growth speed, as the micro structure changes from the dendritic to cellular. The influence of natural convection has been examined by comparing these morphologies with those grown Author: S.

Tewari and H. Song. NASA-CR Time Dependence of Tip Morphology during Cellular/Dendritic Arrayed Growth. By H. Song and S. Tewari. as the micro structure changes from the dendritic to cellular. The influence of natural convection has been examined by comparing these morphologies with those grown, without convection, in the thin ampoules.

Author: H. Song and S. Tewari. Cellular/dendritic array tip morphology during directional solidification of Pb Wt Pct Sb alloy Article (PDF Available) in Metallurgical and Materials Transactions A 30(9) Get this from a library.

Time dependence of tip morphology during cellular/dendritic arrayed growth. [H Song; S N Tewari; United States. National Aeronautics and Space Administration.]. Nowakowski RS, Hayes NL, Egger MD () Competitive interactions during dendritic growth: a simple stochastic growth algorithm.

Brain Res – PubMed CrossRef Google Scholar Oberlaender M, Boudewijns ZSRM, Kleele T et al () Three-dimensional axon morphologies of individual layer 5 neurons indicate cell type-specific Cited by: 3.

ARRAYED DENDRITIC GROWTH* G. BOLLINGf and D. FAINSTEIN-PEDRAZA A simple equation is presented to describe the interdendritic spacing for dendritic growth from a super- heated alloy melt.

It is then rationalized for a simple conceptual extreme: steady-stats unidirectional growth from a liquid under a constant, positive, temperature by: cell,12 hence the images of the MGG stained FIG.

1: Photomicrographs in black and white showing morphology of dendritic cells (DCs) derived from monocytes. Typical DC morphology (see white arrows) with dendrites was observed ( x magnifi cation).

The morphology and structure of Ag products can be well controlled by tuning the concentrations of Ag metal salt precursor. Through a series of time-dependent morphological evolution studies, the growth processes of Ag nanostructures have been systematically investigated and the corresponding growth mechanisms have been discussed.

Of course, a real dendrite, as shown in Figure (A), displays a more complex time-dependent morphology than is suggested by the steady-state tip shape assumed in this analysis. Despite overlooking time-dependent aspects of dendrites, steady-state heat flow analysis correctly captures several important features of the thermal conduction.

Author Summary Neurons possess highly branched extensions, called dendrites, which form characteristic tree-like structures. The morphology of these dendritic arborizations can undergo significant changes in many pathological conditions. It is still poorly known, however, how alterations in dendritic morphology affect neuronal activity.

Using computational models of. Cellular Automata Modelling of Dendritic Crystal Growth based on Moore and von Neumann Neighbhourhoodsgs, September 1, Abstract An important step in understanding crystal growth patterns involves simulation of the growth processes using mathematical models. In this paper some commonly.

In three volumes, it covers all aspects from molecular cell biology to clinical applications, highlighting the role of dendritic cells in fighting cancer, virus infections, and autoimmune diseases.

The first section on cell biology looks at dendritic cell development, circulating cells, T cell priming, Th1 and Th2 decision and CTL priming. Computer simulated image of dendritic growth using a cellular automata technique.

Notice the branching on the dendrites. Photograph courtesy of the Institute of Materials, based on the work of U. Dilthey, V. Pavlik and T. Reichel, Mathematical Modelling of Weld Phenomena III, eds H.

Cerjak and H. Bhadeshia, Institute of Materials. We find that gain modulability is indicated by dendritic morphology, with pyramidal cell-like shapes optimally receptive to modulation. All dendritic subdomains are required for gain modulation—partial illumination is insufficient.

Due to the simulation framework used, these results are directly testable through optogenetic by: 6.Observation of dendritic cell morphology under light, phase-contrast or confocal laser scanning microscopy.

Tan YF(1), Leong CF, Cheong SK. Author information: (1)Cell Banking Unit, PPUKM-MAKNA Cancer Centre, Kuala Lumpur, Malaysia. Dendritic cells (DCs) are professional antigen presenting cells of the immune by: 5.The transformations in amplitude and time-course of EPSPs suggests that the dendritic location of synapses is an important variable for neuronal function.

We have chosen to examine the hippocampal CA3 pyrami- dal cell to determine how its dendritic morphology influ- Accepted December William E.