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Homeostat
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Ross indexed the following pages under the keyword: "Homeostat".


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1946
Summary: Effect on latent roots of adding constant to main diagonal, how to move all latent roots to right or left, and a new test for stability.
Equilibrium dominant root
Higher geometry of fields and matrix theory [18]: Test for stability by dominant root, 2072.
Homeostat design
Isomorphism making machine
2072 2073
Summary: Simple units with output a linear function of the inputs are sufficiently general provided we can control also their general speed of working.
Homeostat design
Isomorphism making machine
2082 2083
Homeostat design
Isomorphism making machine
2094 2095

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1947
Homeostat design
Steady state Bunsen burner, waterfall
2132 2133
Homeostat design
2160 2161
Summary: A number of interesting points from Richardson's book.
Summary: The various "constancies" of the body, so carefully maintained (homeostasis), are also separations and independencies. This needs further investigation. (See 2314)
Homeostat design
Isomorphism making machine
Natural Selection [48]: Homeostasis = constancy = independence, why the latter? 2181. Answered 2314, to preserve the gene pattern.
2180 2181

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1948
Equilibrium of homeostat
Homeostat equations etc
Homeostat stability of
2426 2427
Summary: Full equations and approximations of the machine. (see below).
Homeostat circuit
Hover mouse here to display note
2431 2432
Homeostat works
2435 2436
Summary: If there are no feedbacks, a linear dynamic system cannot develope steady oscillations, but more general systems can.
Linear system feedback and oscillations
Oscillation in linear system
Homeostat possible bias
2447 2448
Computing machines
Computing machines To work as homeostat
Homeostat copied by ACE
2521 2522

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1949
Broadcast on 29 Dec 1948
Homeostat faster model
2561 2562

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1950
Forcing a variable forcing homeostat
Homeostat shows conditioned reflex
Reflex, conditioned on homeastat
2749 2750
Bit (= binary digit) quantities in speaking etc
Homeostat new possibility
Information quantitative examples
Delay (in substitution) and oscillation
Society [30]: Oscillations in fly population and its cause, 2784.
2783 2784
Summary: Serial learning.
Homeostat equations etc
3005 3006

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1951
Campbell's theorem
Degenerance, in system definition
Epistemology Campbell's theorem
Observable Campbell's theorem
Summary: Statistical mechanics.
Chess 'super' moves
Homeostat variety on switches
Information on uniselectors
3607 3608

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1952
Summary: Information in the field and in the equations of an absolute system is S log S. 3695
Summary: The homeostat's amplification factor is less than x1, but I was the first to point this out.
Homeostat variety in fields
Summary: Again the necessity for achieving success by stages.
Design amount of
Natural Selection [6]: Selection in stages can reduce the time from 2p to P, 3662.
3661 3662
Summary: The absolute system does not imply a group. 4033
Absolute system origin of
Summary: An absolute system is a selected projection of the world-lines. 4038, 4043, 4292
Homeostat equations etc
4030 4031

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1953
Homeostasis in homeostat
Homeostat two regulators in
Levels in homeostat
Regulation in homeostat
Summary: All regulations are included in the Markov chain's progression to an absorbing state. [deleted] 4676, 4678, 4683, 4695, 4701
Markov process / chain in machine
4660 4661
Summary: Regulation when several inputs disturb.
Initial state in regulation
Homeostat variety via relay
Relay regulation via relay
Transient in regulation
4682 4683
Summary: In information, the point of view of the element is very different from that of the set.
Searching variety in
Homeostat its discontinuous 2nd order process can be changed through intermediates to that of thermostat
Markov process / chain can be modified to give a field
Regulation discontinuous and continuous are related
Trial and error relation to continuous stability
4694 4695
Homeostat and Markov process
Joining two Markov chains
Markov process / chain building 'machine of'
Summary: Markov chains as component parts for building a machine. 4703, 4770
4700 4701
Summary: A determinate machine, with single-valued field, can be formed only by supplying variety of n log n bits. 4722
Homeostat quantity of design in
Homeostat flow of variety in
4704 4705
Homeostat as designer
4716 4717
Summary: Regulations at various levels reduced to standard and common form. 4737, 4906
Amplifier homeostat as
Homeostat amplification in
4722 4723

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1954
Summary: The homeostat does amplify. 4794>
Amplifier homeostat as
Homeostat amplification in
Relay design of
Summary: Designing a machine to build a machine. 4808 (top), 5070, 5072
Dynamic system dynamic system that "designs" another dynamic system
Machine designed mediately
Machine that designs machine
Epistemology [37]: Machine that builds a machine 4793.
4792 4793
Homeostat amplification in
4806 4807
Homeostat theory of
Summary: "Independence" is a special case of "incomplete transmission of variety".
Independence as non-transmission of variety
Variety and independence
4882 4883
Summary: On identifying an optimum in a set.
Absorbing state, in Markov chain coupled
Markov process / chain ultrastability in
Ultrastability with Markov systems
Veto in Markov machine
Summary: Equilibrium in coupled Markov systems.
Homeostat other forms of
Ultrastability with mixed systems
4904 4905

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1955
Summary: Why build a regulator?
Machine has two aspects
Summary: A machine embodies a transformation and, in addition, may act repetitively.
Summary: Two problems.
Homeostat theory of
Unsolved problems [16]: Represent this by a pay-off matrix:- the case when the disturbance is compound and one component varies only occasionally. 5075.
Unsolved problems [17]: State the thesis that "selection forces adaptation" in terms of disturbance and regulation. 5075.
5074 5075

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1958
Field (of substitution) of homeostat
Homeostat confluants of
5852 5853
Summary: Fully joined systems must be known k steps back if k variables are unobservable.
Homeostat Vienna model
Inscription and ultrastability
Ultrastability and inscription
5876 5877

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1961
Homeostat conditioned reflex on
Reflex, conditioned on Homeostat
Summary: Dickens says eloquence comes from thinking about the subject.
Genius Dickens on
6338 6339

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1963
Summary: A practical way of getting fairly long trajectories with all ending in states of equilibrium. 6485 says joins need not be invariant in time.
Homeostat Grodins' book
Servo-mechanism biological
Summary: The start of Relation and Constraint Analysis. 6467, 6473, 6476
Constraint analysis
Cylindrance introduced
6464 6465

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1967
Summary: Outline of method giving work for the next twenty years. 6767
Homeostat conditioning in
Reflex, conditioned on Homeostat
6744 6745
Summary: Double Insistence.
Homeostat conditioning in
Reflex, conditioned on Homeostat
6760 6761

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