scholarly journals A Preliminary Study of the Orion Nebula Cluster Structure and Dynamics

1998 ◽  
Vol 492 (2) ◽  
pp. 540-553 ◽  
Author(s):  
Lynne A. Hillenbrand ◽  
Lee W. Hartmann
Keyword(s):  
Cluster Structure ◽  
Orion Nebula ◽  
Structure And Dynamics ◽  
Preliminary Study

Cluster structure and dynamics of liquid aluminum under cooling conditions

2002 ◽  
Vol 116 (24) ◽  
pp. 10809-10815 ◽  
Author(s):  
Li Hui ◽  
Wang Guanghou ◽  
Zhao Jijun ◽  
Bian Xiufang
Keyword(s):  
Liquid Aluminum ◽  
Cluster Structure ◽  
Structure And Dynamics ◽  
Cooling Conditions

scholarly journals Cluster structure and dynamics in gels and glasses

2016 ◽  
Vol 2016 (7) ◽  
pp. 074011 ◽  
Author(s):  
R Pastore ◽  
A de Candia ◽  
A Fierro ◽  
M Pica Ciamarra ◽  
A Coniglio
Keyword(s):  
Cluster Structure ◽  
Structure And Dynamics

scholarly journals Temperature evolution in IR action spectroscopy experiments with sodium doped water clusters

2020 ◽  
Author(s):  
Daniel Becker ◽  
Christoph W Dierking ◽  
Jiří Suchan ◽  
Florian Zurheide ◽  
Jozef Lengyel ◽  
...  
Keyword(s):  
Water Clusters ◽  
Cluster Structure ◽  
Temperature Evolution ◽  
Action Spectroscopy ◽  
Structure And Dynamics ◽  
Supersonic Expansions ◽  
Approaches To Study ◽  
Effects Of Temperature

The combination of supersonic expansions with IR action spectroscopy techniques is the basis of many successful approaches to study cluster structure and dynamics. The effects of temperature and temperature evolution...

scholarly journals Changing Structures in Galactic Star Clusters

2007 ◽  
Vol 3 (S246) ◽  
pp. 50-54
Author(s):  
S. Schmeja ◽  
M. S. N. Kumar ◽  
D. Froebrich ◽  
R. S. Klessen
Keyword(s):  
Spatial Distribution ◽  
Statistical Methods ◽  
Formation Mechanism ◽  
Massive Stars ◽  
Cluster Structure ◽  
Star Clusters ◽  
Open Clusters ◽  
Orion Nebula ◽  
Lower Mass ◽  
Mass Segregation

AbstractWe investigate the structures of embedded and open clusters using statistical methods, in particular the combined parameter $\Q$, which permits to quantify the cluster structure. Star clusters build up from several subclusters evolving from a structured to a more centrally concentrated stage. The evolution is not only a function of time, but also of the mass of the objects. Massive stars are usually centrally concentrated, while lower-mass stars are more widespread, reflecting the effect of mass segregation. Using this method we find that in IC 348 and the Orion Nebula Cluster the spatial distribution of brown dwarfs does not follow the central clustering of stars, giving important clues to their formation mechanism by supporting the ejected embryo scenario.

The Ultrastructure of Metastatic Human Mammary Carcinoma After Prolonged Estrogen Therapy

1967 ◽  
Vol 25 ◽  
pp. 180-181
Author(s):  
John H.L. Watson ◽  
John L. Swedo ◽  
R.W. Talley
Keyword(s):  
Mammary Carcinoma ◽  
Osmium Tetroxide ◽  
Estrogen Therapy ◽  
Ultrastructural Level ◽  
Uranyl Acetate ◽  
Human Mammary Carcinoma ◽  
Surgical Biopsy ◽  
Lead Hydroxide ◽  
Preliminary Study ◽  
Hormonal Therapies

A preliminary study of human mammary carcinoma on the ultrastructural level is reported for a metastatic, subcutaneous nodule, obtained as a surgical biopsy. The patient's tumor had responded favorably to a series of hormonal therapies, including androgens, estrogens, progestins, and corticoids for recurring nodules over eight years. The pertinent nodule was removed from the region of the gluteal maximus, two weeks following stilbestrol therapy. It was about 1.5 cms in diameter, and was located within the dermis. Pieces from it were fixed immediately in cold fixatives: phosphate buffered osmium tetroxide, glutaraldehyde, and paraformaldehyde. Embedment in each case was in Vestopal W. Contrasting was done with combinations of uranyl acetate and lead hydroxide.

Fine structure of early degenerating myofibers in the tibialis anterior of young ‘MDX’ mouse

1988 ◽  
Vol 46 ◽  
pp. 322-323
Author(s):  
H.D. Geissinger ◽  
C.K. McDonald-Taylor
Keyword(s):  
Fine Structure ◽  
Muscle Regeneration ◽  
Tibialis Anterior ◽  
Genetic Defect ◽  
Mdx Mouse ◽  
Mdx Mice ◽  
Histopathological Changes ◽  
Electron Microscopic ◽  
Dystrophic Mouse ◽  
Preliminary Study

A new strain of mice, which had arisen by mutation from a dystrophic mouse colony was designated ‘mdx’, because the genetic defect, which manifests itself in brief periods of muscle destruction followed by episodes of muscle regeneration appears to be X-linked. Further studies of histopathological changes in muscle from ‘mdx’ mice at the light microscopic or electron microscopic levels have been published, but only one preliminary study has been on the tibialis anterior (TA) of ‘mdx’ mice less than four weeks old. Lesions in the ‘mdx’ mice vary between different muscles, and centronucleation of fibers in all muscles studied so far appears to be especially prominent in older mice. Lesions in young ‘mdx’ mice have not been studied extensively, and the results appear to be at variance with one another. The degenerative and regenerative aspects of the lesions in the TA of 23 to 26-day-old ‘mdx’ mice appear to vary quantitatively.

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