SELF-CONSISTENT PHONON CALCULATIONS IN SOLID NITROGEN

T. Wasiutynski

doi:10.1051/jphyscol:19816167

Self-Consistent Calculations of the Lattice Modes of Solid Nitrogen

Low Temperature Physics-LT 13 ◽

10.1007/978-1-4613-4520-6_39 ◽

1974 ◽

pp. 227-230

Author(s):

J. C. Raich ◽

N. S. Gillis

Keyword(s):

Solid Nitrogen ◽

Self Consistent ◽

Lattice Modes

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Self‐consistent phonon calculation of the β phase and the α‐β transition in solid nitrogen

The Journal of Chemical Physics ◽

10.1063/1.1682066 ◽

1974 ◽

Vol 61 (4) ◽

pp. 1411-1414 ◽

Cited By ~ 20

Author(s):

J. C. Raich ◽

N. S. Gillis ◽

T. R. Koehler

Keyword(s):

Β Phase ◽

Solid Nitrogen ◽

Self Consistent ◽

Phonon Calculation

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The evolution of the Kuiper belt during the formation of the outer planets

International Astronomical Union Colloquium ◽

10.1017/s0252921100031213 ◽

1999 ◽

Vol 173 ◽

pp. 37-44

Author(s):

M.D. Melita ◽

A. Brunini

Keyword(s):

Kuiper Belt ◽

Outer Planets ◽

Self Consistent ◽

Planetary Bodies ◽

Mass Depletion

AbstractA self-consistent study of the formation of planetary bodies beyond the orbit of Saturn and the evolution of Kuiper disks is carried out by means of an N-body code where accretion and gravitational encounters are considered. This investigation is focused on the aggregation of massive bodies in the outer planetary region and on the consequences of such process in the corresponding cometary belt. We study the link between the bombardment of massive bodies and mass depletion and eccentricity excitation.

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Organization of tight junctions in the choroid plexus epithelium

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100082546 ◽

1978 ◽

Vol 36 (2) ◽

pp. 336-337

Author(s):

B. Van Deurs ◽

J. K. Koehler

Keyword(s):

Choroid Plexus ◽

Present Report ◽

Freeze Fracture ◽

Barrier Properties ◽

Cell Junctions ◽

Structural Basis ◽

Apical Surface ◽

Choroid Plexus Epithelium ◽

Solid Nitrogen ◽

Special Composition

The choroid plexus epithelium constitutes a blood-cerebrospinal fluid (CSF) barrier, and is involved in regulation of the special composition of the CSF. The epithelium is provided with an ouabain-sensitive Na/K-pump located at the apical surface, actively pumping ions into the CSF. The choroid plexus epithelium has been described as “leaky” with a low transepithelial resistance, and a passive transepithelial flux following a paracellular route (intercellular spaces and cell junctions) also takes place. The present report describes the structural basis for these “barrier” properties of the choroid plexus epithelium as revealed by freeze fracture.Choroid plexus from the lateral, third and fourth ventricles of rats were used. The tissue was fixed in glutaraldehyde and stored in 30% glycerol. Freezing was performed either in liquid nitrogen-cooled Freon 22, or directly in a mixture of liquid and solid nitrogen prepared in a special vacuum chamber. The latter method was always used, and considered necessary, when preparations of complementary (double) replicas were made.

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