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Interaction
Interaction
is a kind of action that occur as two or more objects have an effect upon one another. The idea of a two-way effect is essential in the concept of interaction, as opposed to a one-way causal effect. A closely related term is interconnectivity, which deals with the interactions of interactions within systems: combinations of many simple interactions can lead to surprising emergent phenomena. Interaction
Interaction
has different tailored meanings in various sciences.[citation needed] Changes can also involve interaction. Casual examples of interaction outside science include:[citation needed]

Communication
Communication
of any sort, for example two or more people talking to each other, or communication among groups, organizations, nations or states: trade, migration, foreign relations, transportation, The feedback during the operation of a machine such as a computer or tool, for example the interaction between a driver and the position of his or her car on the road: by steering the driver influences this position, by observation this information returns to the driver.

Contents

1 Physics 2 Chemistry

2.1 Biochemistry

2.1.1 Molecular biology 2.1.2 Medicine
Medicine
and pharmacology

3 Biology and genetics 4 Communications 5 Sociology 6 Statistics

6.1 An example from statistics applied to health science

7 Computers 8 Media art 9 See also 10 References 11 External links

Physics[edit] Main articles: Force
Force
and Fundamental interaction In physics, a fundamental interaction (depending on the nature of the interaction, it might also be called a fundamental force) is a process by which elementary particles interact with each other. An interaction is often described as a physical field, and is mediated by the exchange of gauge bosons between particles. For example, the interaction of charged particles takes place through the mediation of electromagnetic fields, whereas beta decay occurs by means of the weak interaction. An interaction is fundamental when it cannot be described in terms of other interactions. There are five known fundamental interactions in Nature: The electromagnetic, strong, weak, Higgs, and gravitational interactions. The weak and electromagnetic interactions are unified in electroweak theory, which is unified with the strong force in the standard model. Chemistry[edit] Interactions between atoms and molecules: Main articles: Molecular recognition, Intermolecular force, Noncovalent bonding, Hydrogen bond, van der Waals force, Aromatic interaction, Cation-pi interaction, Hydrophobic effect, Coordination complex, Aurophilicity, and Electronic correlation See also: Interface (chemistry) Biochemistry[edit] Molecular biology[edit] Main articles: List of protein interactions and Interactome In molecular biology, the knowledge on gene/protein interaction among themselves and with their metabolites is referred to as molecular pathways. Medicine
Medicine
and pharmacology[edit] Main article: Drug interaction See also: Poly drug use § Dangerous interactions In medicine, most medications can be safely used with other medicines, but particular combinations of medicines need to be monitored for interactions, often by the pharmacist. Interactions between medications fall generally into one of two main categories:

pharmacodynamic : Involving the actions of the two interacting drugs. pharmacokinetic : Involving the absorption, distribution, metabolism, and excretion of one or both of the interacting drugs upon the other.

In terms of efficacy, there can be three types of interactions between medications: additive, synergistic, and antagonistic.

Additive interaction means the effect of two chemicals is equal to the sum of the effect of the two chemicals taken separately. This is usually due to the two chemicals acting on the body via same or similar mechanism. Examples are aspirin and motrin, alcohol and depressant, tranquilizer and painkiller. Synergistic interaction means that the effect of two chemicals taken together is greater than the sum of their separate effect at the same doses. An example is pesticide and fertilizer; the biological effect is devastating. Antagonistic interaction means that the effect of two chemicals is actually less than the sum of the effect of the two drugs taken independently of each other. This is because the second chemical increases the excretion of the first, or even directly blocks its toxic actions. Antagonism forms the basis for antidotes of poisonings.

Biology and genetics[edit] Main articles: Biological interaction, Gene–environment interaction, and Cell–cell interaction Geneticists work with a number of different genetic interaction modes to characterize how the combination of two mutations affect (or does not affect) the phenotype:[1] noninteractive, synthetic, asynthetic, suppressive, epistatic, conditional, additive, single-nonmonotonic and double-nonmonotonic. Further characterizations is enhancement interaction and nonadditive interaction. Biosemioticists investigate sign-mediated interactions within and between organisms that underlie syntactic, pragmatic and semantic rules. The word epistasis is also used for genetic interaction in some contexts. Communications[edit] Main article: Interactivity Sociology[edit] Main article: Social interaction In sociology, social interaction is a dynamic, changing sequence of social actions between individuals (or groups) who modify their actions and reactions due to the actions by their interaction partner(s). Social interactions can be differentiated into accidental, repeated, regular, and regulated. Social interactions form the basis of social relations. Statistics[edit] Main article: Interaction
Interaction
(statistics) In statistics, an interaction is a term in a statistical model in which the effect of two, or more, variables is not simply additive. An example from statistics applied to health science[edit] If we were examining the effect of two variables, gender and premature birth, on health outcomes, we would describe any difference in health outcome scores between genders as a main effect. Similarly any difference in scores of full term/premature birth would be described as a main effect. The presence of an interaction effect implies that the effect of gender on health outcome varies as a function of premature birth status. Computers[edit] Main article: Human–computer interaction See also: Interaction
Interaction
cost, Interactive computation, and Interface (computing) Media art[edit] In media, interactivity is a feature of the media in question and as digital technology becomes more accessible to the masses interest in interactivity is increasing and becoming a cultural trend especially in the arts. See also[edit]

63rd World Science
Science
Fiction Convention, the 63rd World Science
Science
Fiction Convention, held in Glasgow, Scotland, in 2005 Financial transaction Game semantics Gordon Pask
Gordon Pask
Conversation and Interactions of Actors Theory Interaction
Interaction
design Interaction design pattern Interaction
Interaction
frequency Interconnectivity Interface (communication studies) Reflection (physics)

References[edit]

^ Becky L. Drees; Vesteinn Thorsson; Gregory W. Carter; Alexander W. Rives; Marisa Z. Raymond; Iliana Avila-Campillo; Paul Shannon; Timothy Galitski (2005). "Derivation of genetic interaction networks from quantitative phenotype data". Genome Biology. 6 (4): R38. doi:10.1186/gb-2005-6-4-r38. PMC 1088966 . PMID 15833125. 

External links[edit] Media related to Interaction
Interaction
at Wikimedia Commons

v t e

Film editing

Concept

Choreography Synchronization Interaction Attentional control Master shot Parallel cut

Technique

Blindfolding Clues Cutaway Eyeline match Points of view Multiple exposure Optical illusion Shuffling Split screen Transition

Insertion

Dialogue Match cut Long shot Insert

Timelapsing

Jump cut

Axial cut

Slow motion

Other

Fast cutting Montage Supercut

Storytelling

Cut on action Contrast cut Shot reverse shot Flashback / Flashforward

Action

Smash cut Cross cut Slow cutting Walk and talk

Rule

180-degree rule 30-degree rule

Term

Reaction shot

Kuleshov effect

Establishing shot Long take Internal rhythm External rhythm Footage

B-roll Stock footage

Editing

Continuity editing Post-classical editing In-camera editing Video editing

Linear video editing Non-linear editing system
Non-linear editing system
(NLE) Video editing
Video editing
software Offline editing Online editing Vis

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