scholarly journals Physiological effects of copper on the freshwater alga Closterium ehrenbergii Meneghini (Conjugatophyceae) and its potential use in toxicity assessments

ALGAE ◽  
2017 ◽  
Vol 32 (2) ◽  
pp. 131-137 ◽  
Author(s):  
Hui Wang ◽  
Ramaraj Sathasivam ◽  
Jang-Seu Ki
Keyword(s):  
Freshwater Alga ◽  
Physiological Effects ◽  
Closterium Ehrenbergii ◽  
Potential Use

The Impact of Artificial Sweeteners on Insects

2020 ◽  
Author(s):  
Shao-Hung Lee ◽  
Dong-Hwan Choe ◽  
Chow-Yang Lee
Keyword(s):  
Chemical Synthesis ◽  
Plant Extracts ◽  
Behavioral Change ◽  
Artificial Sweeteners ◽  
Physiological Effects ◽  
Naturally Occurring ◽  
Low Toxicity ◽  
The Impact ◽  
Potential Use

Abstract Artificial sweeteners are sweet-tasting additives found in consumable products as substitutes for naturally occurring sugars. They are derived from plant extracts or manufactured by chemical synthesis. Ingestion of sweeteners by insects can lead to significant physiological effects, such as mortality, decreased fecundity, and behavioral change. Due to their low toxicity toward humans and the issues associated with conventional insecticide usage, artificial sweeteners have recently gained attention for their potential use as biorational insecticides. Here, we review their impact on insects and potential as novel insecticides.

scholarly journals Degradation of caffeine by microorganisms and potential use of decaffeinated coffee husk and pulp in animal feeding

2002 ◽  
Vol 59 (4) ◽  
pp. 815-821 ◽  
Author(s):  
Paulo Mazzafera
Keyword(s):  
Organic Fertilizer ◽  
Cereal Grains ◽  
Physiological Effects ◽  
Coffee Pulp ◽  
Coffee Husk ◽  
Caffeine Degradation ◽  
Decaffeinated Coffee ◽  
Animal Feeding ◽  
By Products ◽  
Potential Use

Coffee husk and coffee pulp are coffee processing by-products. Coffee husk is obtained when harvested coffee is processed by the dry method, and coffee pulp is produced by the wet method. In Brazil, coffee is usually processed by the dry method, therefore an expressive amount of husk is obtained every year. Some of the husk is used as organic fertilizer but, other applications are very limited, mainly because it is a bulky product. The presence of tannins and caffeine diminish acceptability and palatability of husk by animals. This review discuss degradation of caffeine by microorganisms, with special attention to bacterial, biological decaffeination of coffee husk and pulp and its subsequent use on animal feeding. The known biochemical routes of caffeine degradation by microorganisms are initially discussed; problems concerning physiological effects in animals, focusing on the limitations imposed by caffeine as an antiphysiological component are raised; the use of microorganisms to decaffeinate coffee husk and pulp is discussed. The discussions offer a view on decreasing caffeine content of coffee husk and pulp, which would allow the use of larger amounts of these products in animal feeding, partially replacing traditional components such as cereal grains.

The growth of mica polytypes as studied by conventional and high-resolution TEM

1983 ◽  
Vol 41 ◽  
pp. 174-177
Author(s):  
A. Baronnet ◽  
M. Amouric
Keyword(s):  
Water Pressure ◽  
Point Of View ◽  
Temperature Fields ◽  
Natural Occurrence ◽  
Growth Mechanisms ◽  
Long Period ◽  
High Resolution Tem ◽  
Layer Stacking ◽  
Experimental Works ◽  
Potential Use

The origin of mica polytypes has long been a challenging problem for crystal- lographers, mineralogists and petrologists. From the petrological point of view, interest in this field arose from the potential use of layer stacking data to furnish further informations about equilibrium and/or kinetic conditions prevailing during the crystallization of the widespread mica-bearing rocks. From the compilation of previous experimental works dealing with the occurrence domains of the various mica "polymorphs" (1Mr, 1M, 2M1, 2M2 and 3T) within water-pressure vs temperature fields, it became clear that most of these modifications should be considered as metastable for a fixed mica species. Furthermore, the natural occurrence of long-period (or complex) polytypes could not be accounted for by phase considerations. This highlighted the need of a more detailed kinetic approach of the problem and, in particular, of the role growth mechanisms of basal faces could play in this crystallographic phenomenon.

An atomic-resolution microscope study of Al contracts on GaAs

1986 ◽  
Vol 44 ◽  
pp. 726-727
Author(s):  
Z. Liliental-Weber ◽  
C. Nelson ◽  
R. Ludeke ◽  
R. Gronsky ◽  
J. Washburn
Keyword(s):  
High Speed ◽  
Schottky Contacts ◽  
Detailed Knowledge ◽  
The Past ◽  
Semiconductor Interfaces ◽  
Deposited Metal ◽  
Microwave Applications ◽  
Free Interfaces ◽  
Potential Use

The properties of metal/semiconductor interfaces have received considerable attention over the past few years, and the Al/GaAs system is of special interest because of its potential use in high-speed logic integrated optics, and microwave applications. For such materials a detailed knowledge of the geometric and electronic structure of the interface is fundamental to an understanding of the electrical properties of the contact. It is well known that the properties of Schottky contacts are established within a few atomic layers of the deposited metal. Therefore surface contamination can play a significant role. A method for fabricating contamination-free interfaces is absolutely necessary for reproducible properties, and molecularbeam epitaxy (MBE) offers such advantages for in-situ metal deposition under UHV conditions

Psychological and Physiological Effects of Wearing a Gas Mask or Protective Suit Under Non-Exercising Conditions

1988 ◽  
Author(s):  
D. H. Ryman ◽  
T. L. Kelly ◽  
C. E. Englund ◽  
P. Naitoh ◽  
M. Sinclair
Keyword(s):  
Physiological Effects ◽  
Gas Mask

Taboo words in first and second languages: Physiological effects

2010 ◽  
Author(s):  
Travis Simcox ◽  
Salif Mahamane ◽  
Maura Pilotti
Keyword(s):  
Physiological Effects ◽  
Second Languages ◽  
Taboo Words

The potential use of short chain peptides in parenteral nutrition

1985 ◽  
Vol 4 ◽  
pp. 116-123 ◽  
Author(s):  
P STEHLE ◽  
S ALBERS ◽  
I AMBERGER ◽  
P PFAENDER ◽  
P FURST
Keyword(s):  
Parenteral Nutrition ◽  
Short Chain ◽  
Potential Use
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