Speciation and Changing Environment

Modelling the Evolution of Spatially Distributed Populations in the Uniformly Changing Environment - Sympatric Speciation

We have simulated the evolution of age structured populations whose individuals represented by their diploid genomes were distributed on a square lattice. The environmental conditions on the whole territory changed simultaneously in the same way by switching on or off some requirements. Mutations accumulated in the genes dispensable during a given period of time were neutral, but they could cau...

Changing balance: environment and individual.

The role of occupational therapy as a process for changing balance from dysfunction to function is discussed in this paper. The individual as the first level environment to be considered for balance in the occupational therapy process is emphasized. The role of purposeful activity as a change determinant and as a valued treatment modality is recognized as a practice factor that needs verificati...

The Changing Information Environment

Learning in a changing environment.

Multiple cue probability learning studies have typically focused on stationary environments. We present 3 experiments investigating learning in changing environments. A fine-grained analysis of the learning dynamics shows that participants were responsive to both abrupt and gradual changes in cue-outcome relations. We found no evidence that participants adapted to these types of change in quali...

The Changing Private Practice Environment:

The physician private practice arena has evolved from the days of the single family practitioner delivering house calls to one where options such as an affiliation of independent practitioners to purchase supplies or the integration of multi-specialty medical groups and hospitals into regional health systems are available. The transition to these sophisticated systems for the delivery of medica...