Phase transformations in polyphosphazenes by the depolarized light intensity method. I. General features and examples

1989 ◽  
Vol 22 (12) ◽  
pp. 4636-4641 ◽  
Author(s):  
T. Masuko ◽  
R. Okuizumi ◽  
K. Yonetake ◽  
James H. Magill
Keyword(s):  
Light Intensity ◽  
Phase Transformations ◽  
Depolarized Light Intensity

A depolarized light intensity apparatus for use with differential thermal analysis

1972 ◽  
Vol 5 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Edward M. Barrall ◽  
Julian F. Johnson
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Light Intensity ◽  
Depolarized Light Intensity

Following phase transitions by depolarized light intensity. The experimental setup

2009 ◽  
Vol 28 (1) ◽  
pp. 36-41 ◽  
Author(s):  
B. Misztal-Faraj ◽  
P. Sajkiewicz ◽  
H. Savytskyy ◽  
O. Bonchyk ◽  
A. Gradys ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Light Intensity ◽  
Experimental Setup ◽  
Depolarized Light Intensity

Erratum to “Following phase transitions by depolarized light intensity. The experimental setup” [Polymer Testing 28 (2009) 36–41]

2009 ◽  
Vol 28 (4) ◽  
pp. 461
Author(s):  
B. Misztal-Faraj ◽  
P. Sajkiewicz ◽  
H. Savytskyy ◽  
O. Bonchyk ◽  
A. Gradys ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Light Intensity ◽  
Experimental Setup ◽  
Depolarized Light Intensity ◽  
Polymer Testing

Depolarized Light Intensity and Optical Microscopy of some Mesophase-forming Materials

1969 ◽  
Vol 5 (3) ◽  
pp. 257-271 ◽  
Author(s):  
Edward M. Barrall ◽  
Michael A. Sweeney
Keyword(s):  
Light Intensity ◽  
Optical Microscopy ◽  
Depolarized Light Intensity

Fine structure of the retina of the giant scallop, Placopecten magellanicus

1984 ◽  
Vol 42 ◽  
pp. 312-313
Author(s):  
C.V.L. Powell
Keyword(s):  
Fine Structure ◽  
Electron Microscope ◽  
Light Intensity ◽  
Scanning Electron Microscope ◽  
Eye Development ◽  
Preliminary Observation ◽  
Columnar Epithelium ◽  
Placopecten Magellanicus ◽  
Environmental Light ◽  
Scanning Electron

The overall fine structure of the eye in Placopecten is similar to that of other scallops. The optic tentacle consists of an outer columnar epithelium which is modified into a pigmented iris and a cornea (Fig. 1). This capsule encloses the cellular lens, retina, reflecting argentea and the pigmented tapetum. The retina is divided into two parts (Fig. 2). The distal retina functions in the detection of movement and the proximal retina monitors environmental light intensity. The purpose of the present study is to describe the ultrastructure of the retina as a preliminary observation on eye development. This is also the first known presentation of scanning electron microscope studies of the eye of the scallop.

Effect of light intensity on the ultrastructure of the filamentous cyanobacterium, Anabaena variabilis

1988 ◽  
Vol 46 ◽  
pp. 300-301
Author(s):  
C. S. Bricker ◽  
S. R. Barnum ◽  
B. Huang ◽  
J. G. Jaworskl
Keyword(s):  
Fatty Acid ◽  
Light Intensity ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Anabaena Variabilis ◽  
Chloroplast Envelope ◽  
Major Constituent ◽  
Filamentous Cyanobacterium ◽  
Photosynthetic Membrane ◽  
Effect Of Light

Cyanobacteria are Gram negative prokaryotes that are capable of oxygenic photosynthesis. Although there are many similarities between eukaryotes and cyanobacteria in electron transfer and phosphorylation during photosynthesis, there are two features of the photosynthetic apparatus in cyanobacteria which distinguishes them from plants. Cyanobacteria contain phycobiliproteins organized in phycobilisomes on the surface of photosynthetic membrane. Another difference is in the organization of the photosynthetic membranes. Instead of stacked thylakolds within a chloroplast envelope membrane, as seen In eukaryotes, IntracytopIasmlc membranes generally are arranged in three to six concentric layers. Environmental factors such as temperature, nutrition and light fluency can significantly affect the physiology and morphology of cells. The effect of light Intensity shifts on the ultrastructure of Internal membrane in Anabaena variabilis grown under controlled environmental conditions was examined. Since a major constituent of cyanobacterial thylakolds are lipids, the fatty acid content also was measured and correlated with uItrastructural changes. The regulation of fatty acid synthesis in cyanobacteria ultimately can be studied if the fatty acid content can be manipulated.

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