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David Johnson, Deutsch's student in the study of social psychology, with his brother Roger Johnson, a science educator, and their sister, educator Edye Johnson Holubec, further developed positive interdependence theory as part of their research and work in teacher and professional training at the Cooperative Learning Center at the University of Minnesota (founded in 1969).
The first description of cooperative binding to a multi-site protein was developed by A.V. Hill. [4] Drawing on observations of oxygen binding to hemoglobin and the idea that cooperativity arose from the aggregation of hemoglobin molecules, each one binding one oxygen molecule, Hill suggested a phenomenological equation that has since been named after him:
One manifestation of this is enzymes or receptors that have multiple binding sites where the affinity of the binding sites for a ligand is apparently increased, positive cooperativity, or decreased, negative cooperativity, upon the binding of a ligand to a binding site. For example, when an oxygen atom binds to one of hemoglobin's four binding ...
Positively cooperative binding: Once one ligand molecule is bound to the enzyme, its affinity for other ligand molecules increases. For example, the Hill coefficient of oxygen binding to haemoglobin (an example of positive cooperativity) falls within the range of 1.7–3.2. [5] <.
In positive cooperativity, the first binding event enhances the affinity of the host for another ligand. Examples of positive and negative cooperativity are hemoglobin and aspartate receptor, respectively. [11] General Host–Guest Binding. (1.) Guest A binding (2.) Guest B binding. (3.) Positive Cooperativity Guest A–B binding. (4.)
In social psychology, reciprocity is a social norm of responding to an action executed by another person with a similar or equivalent action. This typically results in rewarding positive actions and punishing negative ones. [1] As a social construct, reciprocity means that in response to friendly actions, people are generally nicer and more ...
Shared intentionality is a concept in psychology that describes the human capacity to engage with the psychological states of others. According to conventional wisdom in cognitive sciences, shared intentionality supports the development of everything from cooperative interactions and knowledge assimilation to moral identity and cultural evolution that provides building societies, being a pre ...
In social psychology, collective narcissism (or group narcissism) is the tendency to exaggerate the positive image and importance of a group to which one belongs. [1] [2] The group may be defined by ideology, race, political beliefs/stance, religion, sexual orientation, social class, language, nationality, employment status, education level, cultural values, or any other ingroup.