### process | extraction:

Resource extraction
* involves any activity that withdraws resources from nature.
* is shown as an age-old part of nature.

### process | extraction:

Solvent extraction
* common form of chemical extraction using organic solvent as the extractant.
* is the process of soaking the plant extracts in hexane for a period of time.
* is used in the processing of perfumes , vegetable oil , or biodiesel
  - perfumes, vegetable oil, or biodiesel. * perfumes, vegetable oil, or biodiesel. It is also used to recover plutonium from irradiated nuclear fuel, a process which is usually called nuclear reprocessing. The recovered plutonium can then be re-used as nuclear fuel
* substance in which another substance is dissolved, forming a solution.

Timber extraction
* can harm lynx by altering the habitat conditions the cats rely upon to survive.
* puts great pressure on biodiversity in both tropical and temperate forests.

### process:

Feedback
* are changes in temperature or rainfall that in turn create changes in vegetation
  - outside changes to a process, such as global warming
* helps designs
  - services
* includes information.
* indicates correct responses
* is an action
  - answers
  - backs
  - correction of behavior as it goes along
  - critical to enriching the brain as well as building intrinsic motivation
  - knowledge of results
  - natural processes
  - one of the main concerns of cybernetics
  - what causes people to alter their behavior and produce different results
* natural process present in almost all dynamic systems involving human behavior.
* occurs when the response to a stimulus has an effect of some kind on the original stimulus.
* offers advice.
* term used to describe the interactions and reactions of components within a system.
+ Social Cognitive Theory, Fundamental Human Capabilities
  * The second factor is 'feedback'. Feedback allows an individual to control and adjust their goals in a more reasonable manner.

### process | feedback:

Audio feedback
* is used to facilitate motor learning.
* plays an important role in optimizing applications for voice input.

Climate feedback
* amplify or reduce direct warming and cooling effects.
* can amplify the response of the system to an externally imposed perturbation
  - either amplify or dampen the response of the climate to a given forcing

Optical feedback
* can stem from processes such as fluorescence distributive feedback.
* reduces the linewidth primarily by increasing the optical cavity length.

### process | feedback:

Positive feedback
* can help businesses build trust in a medium that is essentially anonymous.
* causes an amplification of the stimulus by the reaction.
* creates growth, an exponential change of state.
* increases the deviation from an initial state.
* involves the sampling of control variables with further action of the same type.
* is feedback
  - less common in biological systems
  - one of the most important characteristics of self organising systems
* is the best way to reinforce positive behaviors
  - reverse of negative feedback
  - when the response enhances the original stimulus
* lead to an acceleration in the rate of the forward reaction.
* mechanism by which an output is enhanced, such as protein levels.
* occurs as pesticide applications are increased to offset increasing resistance.
* occurs when an original change in a system grows and the system becomes unstable
  - the response to a stimulus increases the original stimulus
* seems to be the primary stimulus in causing a wolf to remark an area.

Sensory feedback
* can coordinate the swimming activity of the leech.
* plays an important role in adaptive control of insect leg movements.