Theory for the observed isotope effects from enzymic systems that form multiple products via branched reaction pathways: cytochrome P-450

Biochemistry ◽  
1989 ◽  
Vol 28 (23) ◽  
pp. 9012-9018 ◽  
Author(s):  
Kenneth R. Korzekwa ◽  
William F. Trager ◽  
James R. Gillette
Keyword(s):  
Isotope Effects ◽  
Reaction Pathways ◽  
Multiple Products ◽  
Cytochrome P 450

scholarly journals Properties of Feshbach and “shape”-resonances in ozone and their role in recombination reactions and anomalous isotope effects

2018 ◽  
Vol 212 ◽  
pp. 259-280 ◽  
Author(s):  
Alexander Teplukhin ◽  
Dmitri Babikov
Keyword(s):  
Isotope Effects ◽  
Reaction Pathways ◽  
Recombination Reactions ◽  
Shape Resonances

Three reaction pathways for formation of symmetric and asymmetric isotopologues of ozone.

Graphical Instructions for Procedures Involving Material Flow

2018 ◽  
Vol 62 (1) ◽  
pp. 1803-1807
Author(s):  
Zachary H. Pugh ◽  
Douglas J. Gillan
Keyword(s):  
Chemical Reaction ◽  
Material Flow ◽  
Unique Feature ◽  
Reaction Pathways ◽  
Virtual Laboratory ◽  
Viewing Time ◽  
Abstract Object ◽  
Single Product ◽  
Multiple Products ◽  
Study Participants

Certain tasks, such as cooking and chemistry lab work, involve the transformation, combination, and separation of materials. Because these tasks are concerned with material flow, they can be represented using a type of formal diagram commonly used in chemistry and biology to represent chemical reaction pathways. A unique feature of this notation is its graphical depiction of changes in partonomy—how certain materials combine to form a single product, or how a material is decomposed into multiple products. In the present study, participants performed a series of abstract object transformation tasks in a virtual laboratory according to different instruction formats (text, semi diagram, full diagram). Each participant tested the three formats, each with one of three unique tasks. Differences in viewing time address whether the graphical depiction of partonomic change is advantageous for the user.

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