Communities in Action: Pattern and Process.Severyn T. Bruyn

1966 ◽  
Vol 71 (4) ◽  
pp. 445-446
Author(s):  
William Simon
Keyword(s):  
Action Pattern

Endo-D-galacturonanase immobilized by adsorption on porous polyethyleneterephthalate

1982 ◽  
Vol 47 (10) ◽  
pp. 2716-2723 ◽  
Author(s):  
Lubomíra Rexová-Benková ◽  
Jiřina Omelková ◽  
Vladimír Kubánek
Keyword(s):  
Ionic Strength ◽  
High Stability ◽  
Relative Activity ◽  
Operational Stability ◽  
The Other ◽  
Fixation Strength ◽  
Action Pattern ◽  
Salt Solutions ◽  
Buffer Solution ◽  
Degradation Degree

Endo-D-galacturonanase of Aspergillus sp. was irreversibly adsorbed on polyethyleneterephthalate in an acetate 0.1 mol l-1 buffer solution of pH 4.2. Immobilization of the enzyme resulted in lowering of its activity, the measure of which depended on the amount of the enzyme fixed on the carrier. The highest relative activity (42.4%) had the preparation containing 5.25 mg of the enzyme per 1 g of the carrier. The velocity and intensity of the sorption of the enzyme depended on the ionic strength of the medium, whilst pH, on the other hand, was of no influence. Endo-D-galacturonanase immobilized in a 0.1 mol l-1 buffer was characteristic a) of its fixation strength in salt solutions of various ionic strength and pH, in a 3 mol l-1 guanidine solution, and also in sodium pectate and pectin solutions, b) of its high stability during a long-lasting storage at 4 °C, c) of its operational stability. The immobilization led to a partial change of the action pattern onto the high-molecular substrate, manifested in lowering the decrease of viscosity to degradation degree ratio.

scholarly journals The Action Pattern of Porcine Pancreatic α-Amylase in Relationship to the Substrate Binding Site of the Enzyme

1970 ◽  
Vol 245 (15) ◽  
pp. 3917-3927
Author(s):  
John F. Robyt ◽  
Dexter French
Keyword(s):  
Binding Site ◽  
Substrate Binding ◽  
Action Pattern ◽  
Substrate Binding Site

Fixed Action Pattern

2013 ◽  
pp. 862-862
Author(s):  
Jörg-Peter Ewert
Keyword(s):  
Action Pattern ◽  
Fixed Action Pattern ◽  
Fixed Action

C. Abnormal rituals in stress situations the rigidification of behaviour

1966 ◽  
Vol 251 (772) ◽  
pp. 327-330 ◽  
Keyword(s):  
Las Vegas ◽  
Basic Fact ◽  
Nest Material ◽  
Laboratory Studies ◽  
Action Pattern ◽  
The Past ◽  
Animal Psychology ◽  
The Relationship ◽  
Skinner Box ◽  
Reaction Chain

Behaviour sequences commonly consist of highly variable appetitive phases leading to rather fixed consummatory acts. Action-pattern rigidity is typical of the terminal moments of a reaction chain. This basic fact is all too often obscured by the artificial conditions of behaviour studies. Observations on laboratory or captive animals tend to conceal the degree of variability of the earlier phases of each sequence. The simplicity and sterility of the unnatural environment offered to the animal causes differential damage to its motoric performance, attacking the early stages more and the later stages less. A caged animal will feed, drink, nest and copulate, but it cannot set off on lengthy quests for food, water, nest material or a mate. Notorious laboratory devices such as the Skinner-box have served to eliminate totally any possibility for motoric variability. The emphasis in laboratory studies of this kind has been steadfastly concentrated on the variability in the relationship between simple stimuli and an artificially rigidified response. Although the study of this (SR) relationship is an important aspect of animal psychology, it is extremely misleading to overstress its importance as has been done so often in the past. To equate it with the whole topic of animal behaviour is like claiming that the gaming rooms of Las Vegas reflect the whole of human endeavour.

The amniotic sac as scaffolding: Prenatal ontogeny of an action pattern

1991 ◽  
Vol 24 (7) ◽  
pp. 463-485 ◽  
Author(s):  
Scott R. Robinson ◽  
William P. Smotherman
Keyword(s):  
Action Pattern ◽  
Prenatal Ontogeny

scholarly journals The α-amylase of the beetle Callosobruchus chinensis. Purification and action pattern

1971 ◽  
Vol 121 (2) ◽  
pp. 317-320 ◽  
Author(s):  
H. Podoler ◽  
S. W. Applebaum
Keyword(s):  
Column Chromatography ◽  
Gel Electrophoresis ◽  
Callosobruchus Chinensis ◽  
Action Pattern ◽  
Iodine Complex ◽  
Co Precipitation

Callosobruchus chinensis larval amylase was isolated and purified in five steps, which included co-precipitation with glycogen and column chromatography on ECTEOLA-cellulose. The enzyme was homogeneous by disc gel electrophoresis on polyacrylamide. The α-amylase nature was evidenced by the action on amylopectin β-amylase limit-dextrin, by the effect on the substrate–iodine complex and by the action pattern on several polysaccharide substrates. These action patterns are compared with those of other α-amylases.

Action Pattern of Bacillus SP. No. 7-M Chitosanase on Partially N-Acetylated Chitosan

1992 ◽  
pp. 334-343 ◽  
Author(s):  
Masato Izume ◽  
Shin’ichi Nagae ◽  
Hirokazu Kawagishi ◽  
Masaru Mitsutomi ◽  
Akira Ohtakara
Keyword(s):  
Bacillus Sp ◽  
Action Pattern

Absence of Digitalis-like Cardiac Effects in the Action Pattern of Several Simple Lactones.

1950 ◽  
Vol 74 (3) ◽  
pp. 548-550 ◽  
Author(s):  
R. P. Walton ◽  
M. d. Cotten ◽  
W. M. McCord
Keyword(s):  
Action Pattern ◽  
Cardiac Effects
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