GI Tract Physiology and Biochemistry

2004 ◽  
pp. 123-138
Keyword(s):  
Gi Tract ◽  
Physiology And Biochemistry

Some Effects of Oxidant Air Pollutants (Ozone and Peroxyacetyl Nitrate) on the Ultrastructure of Leaf Tissues

1972 ◽  
Vol 30 ◽  
pp. 360-361
Author(s):  
William W. Thomson ◽  
Elizabeth S. Swanson
Keyword(s):  
Air Pollutants ◽  
Electron Microscopic Examination ◽  
Peroxyacetyl Nitrate ◽  
Electron Microscopic ◽  
Growth Physiology ◽  
Physiology And Biochemistry ◽  
Entire Plant ◽  
Leaf Tissues ◽  
Gaseous Hydrocarbons ◽  
The Individual

The oxidant air pollutants, ozone and peroxyacetyl nitrate, are produced in the atmosphere through the interaction of light with nitrogen oxides and gaseous hydrocarbons. These oxidants are phytotoxicants and are known to deleteriously affect plant growth, physiology, and biochemistry. In many instances they induce changes which lead to the death of cells, tissues, organs, and frequently the entire plant. The most obvious damage and biochemical changes are generally observed with leaves.Electron microscopic examination of leaves from bean (Phaseolus vulgaris L.) tobacco (Nicotiana tabacum L.) and cotton (Gossipyum hirsutum L.) fumigated for .5 to 2 hours with 0.3 -1 ppm of the individual oxidants revealed that changes in the ultrastructure of the cells occurred in a sequential fashion with time following the fumigation period. Although occasional cells showed severe damage immediately after fumigation, the most obvious change was an enhanced clarity of the cell membranes.

Assessment and topographical analysis of the total histamine degradation capacity (THDC) at the lower GI-tract

2013 ◽  
Vol 51 (08) ◽  
Author(s):  
C Reiser ◽  
E Tietz ◽  
A Missbichler ◽  
G Frost ◽  
G Manz ◽  
...  
Keyword(s):  
Gi Tract ◽  
Topographical Analysis

Evaluation of the multifunctional BOWA ARC HF-generator for polypectomy, mucosal resection (EMR) and submucosal dissection (ESD) at the lower GI-tract

2014 ◽  
Vol 27 (01) ◽  
Author(s):  
M Raithel ◽  
A Hagel ◽  
A Nägel ◽  
W Landry ◽  
D Witzemann ◽  
...  
Keyword(s):  
Gi Tract ◽  
Mucosal Resection ◽  
Submucosal Dissection

INTERVENTIONAL TRAINING MODEL FOR FLEXIBLE ENDOSCOPY IN POSTOPERATIVELY ALTERED ANATOMY OF THE UPPER GI TRACT

2020 ◽  
Author(s):  
K Koch ◽  
U Schweizer ◽  
B Mothes ◽  
D Wichmann ◽  
KE Grund
Keyword(s):  
Training Model ◽  
Flexible Endoscopy ◽  
Gi Tract ◽  
Upper Gi ◽  
Upper Gi Tract

Effect of Administration of Lab Isolated L.Plantarum from GI Tract of Guinea Fowl on Intestinal Histomorphometry in Broilers

2012 ◽  
Vol 3 (8) ◽  
pp. 476-478
Author(s):  
Vineetha P.G Vineetha P.G ◽  
◽  
Simmi Tomar ◽  
Deepthi Vijay ◽  
Sreelekshmy Mohandas
Keyword(s):  
Guinea Fowl ◽  
Gi Tract

Organizing a public aquarium: objectives, design, operation and missions. A review

2013 ◽  
Vol 13 (4) ◽  
pp. 369-384
Keyword(s):  
Life Cycles ◽  
Ex Situ ◽  
Responsible Behavior ◽  
Scientific Disciplines ◽  
Public Aquarium ◽  
Physiology And Biochemistry ◽  
Taxonomic Concept ◽  
Conservation Projects ◽  
Surrounding Areas ◽  
Community Concept

Many Public Aquaria have been designed and constructed all over the world during the last three decades. The serial arrangement of relatively small, rectangular, concrete tanks has been replaced by fewer large, irregularly shaped tanks, replicating habitats. The “taxonomic concept” of displaying specimens in the old aquaria has now been succeeded by the more ecological, “community concept” type of display. At the same time most of the “old aquaria” have been renovated. Aquarium missions have also been broadened nowadays including research, conservation and education. Aquaria are ideal places for research on husbandry, life cycles, reproduction, behavior, autoecology and fish pathology. Collaboration with Universities and Research Centers increases the research potential in scientific disciplines such as ecology, genetics, physiology and biochemistry. Collaboration also provides mutual benefits in both infrastructure and personnel: The research background in aquaria also forms a sound platform to materialize conservation projects, focusing either on the ex-situ conservation of animals in the aquaria or on environmental protection of surrounding areas and reintroduction of endangered species. In addition to formal educational opportunities, non formal education to visitors, schools and undergraduates seems to become a major mission of aquaria. Aquarium tank displays, preserved biological material, film projections, seminars / lectures and book magazine publications enhance environmental awareness, encouraging people to adopt Environmentally Responsible Behavior. All these missions are feasible because most public aquaria are making a good profit mainly due to their high popularity. There are also benefits for the community in the area; aquaria have enlivened declining water front areas and increased the income of tourist resorts mainly by “stretching out” the tourist season. In the present work the objectives of a public aquarium are reviewed and the main infrastructure subsystems and operational procedures are described; Know how on aquarium systems can also be applied in research laboratories of academic institutions if live organisms have to be kept for experimentation. Aquarium missions on research, conservation and education are discussed.

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