scholarly journals OBSERVATIONS ON CELL GROWTH, MITOSIS, AND DIVISION IN THE FUNGUS BASIDIOBOLUS RANARUM

1963 ◽  
Vol 17 (1) ◽  
pp. 123-152 ◽  
Author(s):  
C. F. Robinow
Keyword(s):  
Cell Wall ◽  
Cell Division ◽  
Cell Growth ◽  
Mitotic Spindle ◽  
Phase Contrast ◽  
Phase Contrast Microscopy ◽  
Large Nucleus ◽  
Slowing Down ◽  
Contrast Microscopy ◽  
Duplication Cycle

The paper describes the forward streaming, growth, and division of the vegetative cell of Basidiobolus ranarum. The cell is several hundred microns long and has a single large nucleus. Mitosis is invariably followed by cell division. Both processes have been studied in the living cell by ordinary and phase contrast microscopy. Mitosis is accompanied by a temporary coarsening of the organisation of the cytoplasm and a considerable slowing down of the rate of growth of the cell wall tube. Fixed and stained preparations have shown that there is a large number of small chromosomes and that the mitotic spindle is formed from the nucleolus. Basidiobolus appears suitable for observations on the cell duplication cycle and the physiology of mitosis.

scholarly journals Rough Dental Implant Surfaces and Peri-Implantitis: Role of Phase-Contrast Microscopy, Laser Protocols, and Modified Home Oral Hygiene in Maintenance. A 10-Year Retrospective Study

2021 ◽  
Vol 11 (11) ◽  
pp. 4985
Author(s):  
Gianluigi Caccianiga ◽  
Gérard Rey ◽  
Paolo Caccianiga ◽  
Alessandro Leonida ◽  
Marco Baldoni ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Phase Contrast ◽  
Vertical Movement ◽  
Subgingival Plaque ◽  
Phase Contrast Microscopy ◽  
Implant Surface ◽  
Total Percentage ◽  
Contrast Microscopy

The aim of this study was to evaluate two different kinds of rough implant surface and to assess their tendency to peri-implantitis disease, with a follow-up of more than 10 years. Data were obtained from a cluster of 500 implants with Ti-Unite surface and 1000 implants with Ossean surface, with a minimum follow-up of 10 years. Implants had been inserted both in pristine bone and regenerated bone. We registered incidence of peri-implantitis and other causes of implant loss. All patients agreed with the following maintenance protocol: sonic brush with vertical movement (Broxo), interdental brushes, and oral irrigators (Broxo) at least two times every day. For all patients with implants, we evaluated subgingival plaque samples by phase-contrast microscopy every 4 months for a period of more than 10-years. Ti-Unite surface implants underwent peri-implantitis in 1.6% of the total number of implants inserted and Ossean surface implants showed peri-implantitis in 1.5% of the total number of implants. The total percentage of implant lost was 4% for Ti-Unite surfaces and 3.6% for Ossean surfaces. Strict control of implants leads to low percentage of peri-implantitis even for rough surfaces dental implants.

scholarly journals Coherent noise reduction in digital holographic phase contrast microscopy by slightly shifting object

2011 ◽  
Vol 19 (5) ◽  
pp. 3862 ◽  
Author(s):  
Feng Pan ◽  
Wen Xiao ◽  
Shuo Liu ◽  
FanJing Wang ◽  
Lu Rong ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Phase Contrast ◽  
Phase Contrast Microscopy ◽  
Coherent Noise ◽  
Contrast Microscopy

In vitro Maturation of the Exoerythrocytic Stage of Plasmodium knowlesi Observed under Phase Contrast Microscopy

1990 ◽  
Vol 76 (6) ◽  
pp. 923 ◽  
Author(s):  
Pascal Millet ◽  
William E. Collins ◽  
Claude E. Monken ◽  
Bobby G. Brown
Keyword(s):  
Phase Contrast ◽  
In Vitro Maturation ◽  
Plasmodium Knowlesi ◽  
Phase Contrast Microscopy ◽  
Contrast Microscopy
Sign in / Sign up

Export Citation Format

Share Document