TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

A diagnostic modeling scheme based on a procedural network contains all the necessary subskills for the global skill, as well as all the possible buggy variants(or bugs) of each subskill. It can replace an individual subskill in the procedural network by one of its bugs, and thus attempt to reproduce a student's incorrect behavior. If such a faulted network does obtain the same answers as the student on a sufficient set of problems, the bugs that have replaced their correct siblings in the network are then posited as being those possessed by the student. Such an instantiation of the subprocedure calls, which actually models the student in a deterministic fashion, is considered a deep-structure model : it explains the student's incorrect behavior in terms of a set of exact internalized errors, rather than of, say, a probabilistic estimate of correct and incorrect answers such as is typical of stochastic models.  1, fiche 1, Anglais, - deep%2Dstructure%20model

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 OBS

Voir : structure profonde.  2, fiche 1, Français, - mod%C3%A8le%20de%20structure%20profonde

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

Type of secondary structure of protein molecules, being random in the sense that there is no repeating pattern in which each residue interacts with other residues (as in an alpha helix).  1, fiche 2, Anglais, - random%2Dcoil

Record number: 2, Textual support number: 1 CONT

Since enzyme deactivation should be an intrinsically monomolecular process, overall kinetics other than first-order clearly suggest a multistep reaction scheme. Recently a two-step, in-series model has been proposed that assumes that the native enzyme undergoes an irreversible transition to an equilibrium distribution of at least two intermediate structures of entirely different stability and kinetic behavior. These, in turn, degrade to a totally inactive, random-coil situation.  2, fiche 2, Anglais, - random%2Dcoil

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Forme que prend une chaîne macromoléculaire par repliements successifs sur elle-même. (Certaines macromolécules, très rigides, conservent en solution un certain état d'extension et ne présentent d'infléchissement que sur de longues distances. Au contraire, d'autres, plus souples, prennent une forme pelotonnée. Comme la forme et les dimensions d'une telle pelote sont continuellement changeantes, on lui adjoint le qualificatif "statistique".)  1, fiche 2, Français, - pelote%20statistique

Record number: 2, Textual support number: 1 CONT

Les structures secondaires et tertiaires des protéines sont maintenues par des liaisons faibles et des liaisons disulfures. Si ces liaisons sont rompues, ces structures disparaissent, la protéine est dite dénaturée, sa molécule devient désordonnée, elle devient une "pelote statistique". En fait la molécule peut ne pas perdre entièrement sa structure, si l'agent dénaturant n'agit pas de manière trop énergique, mais en général, la dénaturation est irréversible. La dénaturation s'accompagne souvent d'une précipitation de la protéine, les molécules tendent en effet a former des agrégats qui ne restent pas en solution. Très généralement la dénaturation fait perdre aux protéines leurs propriétés biologiques, comme l'activité enzymatique.  2, fiche 2, Français, - pelote%20statistique

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

A diagnostic modeling scheme based on a procedural network contains all the necessary subskills for the global skill, as well as all the possible buggy variants(or bugs) of each subskill. It can replace an individual subskill in the procedural network by one of its bugs, and thus attempt to reproduce a student's incorrect behavior. If such a faulted network does obtain the same answers as the student on a sufficient set of problems, the bugs that have replaced their correct siblings in the network are then posited as being those possessed by the student. Such an instantiation of the subprocedure calls, which actually models the student in a deterministic fashion, is considered a deep-structure model  1, fiche 3, Anglais, - diagnostic%20modeling%20scheme

Fiche 3,  Justifications,  Français

Fiche 3,  Justifications,  Espagnol