Mixing characteristics of particulate material in a negative pressure air mixer

1982 ◽  
Vol 21 (4) ◽  
pp. 664-670 ◽  
Author(s):  
Tetsuo Akiyama ◽  
Leonard K. Peters ◽  
Shizuo Kageyama ◽  
Masahiro Hosoi ◽  
Ichiro Yokota ◽  
...  
Keyword(s):  
Negative Pressure ◽  
Particulate Material ◽  
Mixing Characteristics

In situ microprobe quantitation of inorganic particle burden in paraffin sections of lung tissue

1988 ◽  
Vol 46 ◽  
pp. 990-991
Author(s):  
Jerrold L. Abraham
Keyword(s):  
Lung Tissue ◽  
Quantitative Information ◽  
Particulate Material ◽  
Paraffin Sections ◽  
Tissue Samples ◽  
Qualitative And Quantitative ◽  
The Past ◽  
Quantitative Analyses ◽  
Data Result

Inorganic particulate material of diverse types is present in the ambient and occupational environment, and exposure to such materials is a well recognized cause of some lung disease. To investigate the interaction of inhaled inorganic particulates with the lung it is necessary to obtain quantitative information on the particulate burden of lung tissue in a wide variety of situations. The vast majority of diagnostic and experimental tissue samples (biopsies and autopsies) are fixed with formaldehyde solutions, dehydrated with organic solvents and embedded in paraffin wax. Over the past 16 years, I have attempted to obtain maximal analytical use of such tissue with minimal preparative steps. Unique diagnostic and research data result from both qualitative and quantitative analyses of sections. Most of the data has been related to inhaled inorganic particulates in lungs, but the basic methods are applicable to any tissues. The preparations are primarily designed for SEM use, but they are stable for storage and transport to other laboratories and several other instruments (e.g., for SIMS techniques).

Ultrastructural Changes in the Root Meristem Cells of Rubus Chamaemorus L. (Cloudberry)

1975 ◽  
Vol 33 ◽  
pp. 562-563
Author(s):  
Arya K. Bal
Keyword(s):  
Root Meristem ◽  
Uranyl Acetate ◽  
Particulate Material ◽  
Ultrastructural Changes ◽  
Cell Organelles ◽  
Cytoplasmic Matrix ◽  
Golgi Membranes ◽  
Rubus Chamaemorus ◽  
Dense Substance ◽  
Ultrathin Sections

In the course of studies in the root meristem tissue of Rubus chamaemorus L. some important changes in the ultrastructural morphology were observed during the initiation of senescence at the end of the growing season.Root meristems were collected from naturally growing healthy populations of Cloudberry plants, and fixed in Karnovsky's mixture or in 2.5% glutaraldehyde in phosphate buffer. The samples were osmicated, dehydrated following usual methods and embedded in Epon. Ultrathin sections were stained in uranyl acetate and lead citrate.Figure 1 shows part of a dense cell in the meristem. The electron density of these cells is due to large amounts of a particulate material in the cytoplasmic matrix. The smallest particle seen in electron micrographs is about 40 A, although larger aggregates are also found, which remain randomly distributed in association with various cell organelles. Dense substance has been found associated with golgi membranes, proplastids, vacuoles and microtubules (Fig. 2).

Blood Flow, Negative Pressure, and Hemolysis During Hemodialysis

1999 ◽  
Vol 3 (1) ◽  
pp. 45-50
Author(s):  
Zbylut J. Twardowski ◽  
Jimmy D. Haynie ◽  
Harold L. Moore
Keyword(s):  
Blood Flow ◽  
Negative Pressure

Negative pressure therapy – How many dressing changes are enough?

2012 ◽  
Vol 60 (S 01) ◽  
Author(s):  
S Raab ◽  
T Weimann ◽  
W Sienel ◽  
L Lampl ◽  
M Beyer
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Therapy ◽  
Pressure Therapy

Prevention of poststernotomy wound infections in obese patients by negative pressure wound therapy

2013 ◽  
Vol 61 (S 01) ◽  
Author(s):  
O Grauhan ◽  
A Navasardyan ◽  
M Hofmann ◽  
P Müller ◽  
J Stein ◽  
...  
Keyword(s):  
Negative Pressure ◽  
Negative Pressure Wound Therapy ◽  
Obese Patients ◽  
Wound Infections ◽  
Wound Therapy
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