A complete theory of evolution must acknowledge a balance between “external” forces of environment imposing selection for local adaptation and “internal” forces representing constraints of inheritance and development. Vavilov placed too much emphasis on internal constraints and downgraded the power of selection. But Western Darwinians have erred equally in practically ignoring (while acknowledging in theory) the limits placed on selection by structure and development what Vavilov and the older biologists would have called “laws of form.”
Software engineering concerns methods and techniques to develop large software systems. The engineering metaphor is used to emphasize a systematic approach to develop systems that satisfy organizational requirements and constraints.
God, the supreme being, is neither circumscribed by space, nor touched by time; he cannot be found in a particular direction, and his essence cannot change. The secret conversation is thus entirely spiritual; it is a direct encounter between God and the soul, abstracted from all material constraints.avicenna
Deregulation freed corporations from legal constraints, and privatization empowered them to govern areas of society from which they had been previously been excluded. By the end of the century, the corporation had become the world's dominant institution.Yet history humbles dominant institutions.joel bakan
Neither nature, experience, nor probability informs these lists of 'entitlements', which are subject to no constraints except those of the mind and appetite of their authors.jeane kirkpatrick
"Rules of simultaneous ensemble constraint can't be assumed a priori to be the kinds of rules or rest on the same foundations as rules for constraint on succession. They may well be similar, but they may well not be similar also. It seems to me that ensemble constraints must first be understood in their own terms, within musical cultures individually and comparitively, looking to what appear to be basic principles in each in light of the others, I would call such a study "comparative counterpoint."harold powers
I am, as I have always been, of the opinion that while the niceties of normal moral constraints should be our guides, they must not be our masters.iain banks
The underlying reason for convergence seems to be that all organisms are under constant scrutiny of natural selection and are also subject to the constraints of the physical and chemical factors that severely limit the action of all inhabitants of the biosphere. Put simply, convergence shows that in a real world not all things are possible.simon conway morris
When Bonner writes that “natural selection for optimal feeding is then presumed to be the cause of non-motility in all forms,” I can't help suspecting that some plants might do even better if they could walk from shade to sun but the inherited constraints of design never permitted a trial of this intriguing option.stephen jay gould
As long as you can Houdini your way out of the Sisyphean constraints then originality happens.david mitchell
The first breath of adultery is the freest; after it, constraints aping marriage develop.john updike
He who does not realize to what extent shifting fortune and necessity hold in subjection every human spirit, cannot regard as fellow-creatures nor love as he loves himself those whom chance separated from him by an abyss. The variety of constraints pressing upon man give rise to the illusion of several distinct species that cannot communicate. Only he who has measured the dominion of force, and knows how not to respect it, is capable of love and justice .Simone Weil
He who does not realize to what extent shifting fortune and necessity hold in subjection every human spirit, cannot regard as fellow-creatures nor love as he loves himself those whom chance separated from him by an abyss. The variety of constraints pressing upon man give rise to the illusion of several distinct species that cannot communicate. Only he who has measured the dominion of force, and knows how not to respect it, is capable of love and justice .
After 1909, Monet drastically enlarged his brushstrokes , disintegrated his images , and broke through the taming constraints and delicacy of Impressionism for good. Nineteen gnarly paintings , starting in 1909 and carrying through his final seventeen years, finish off the notion that Monet went happily ever after into lily-land.
A conceptual model is a representation of the system expertise using this formalism. An internal model is derived from the conceptual model and from a specification of the system transactions and the performance constraints.
software architecture involves the description of elements from which systems are built, interactions among those elements, patterns that guide their composition, and constraints on these patterns. In general, a particular system is defined in terms of a collection of components and interactions among those components. Such a system may in turn be used as a (composite) element in a larger system design.
In enterprise modelling, we want to define the actions performed within an enterprise, and define constraints for plans and schedules which are constructed to satisfy the goals of the enterprise. This leads to the following set of informal competency questions:
[The Texas anti-sodomy statute] undoubtedly imposes constraints on liberty. So do laws prohibiting prostitution, recreational use of heroin, and, for that matter, working more than 60 hours per week in a bakery. But there is no right to 'liberty' under the Due Process Clause, though today's opinion repeatedly makes that claim. . . . The Fourteenth Amendment expressly allows States to deprive their citizens of 'liberty,' so long as 'due process of law' is provided. . . ."
Sir, ’said Stephen,‘ I read novels with the utmost pertinacity. I look upon them--I look upon good novels--as a very valuable part of literature, conveying more exact and finely-distinguished knowledge of the human heart and mind than almost any other, with greater breadth and depth and fewer constraints.”
Linear Programming is a generalization of Linear Algebra. It is capable of handling a variety of problems, ranging from ?nding schedules for airlines or movies in a theater to distributing oil from re?neries to markets. The reason for this great versatility is the ease at which constraints can be incorporated into the model.
For me, as I later came to say, cybernetics is the art of creating equilibrium in a world of possibilities and constraints. This is not just a romantic description, it portrays the new way of thinking quite accurately. Cybernetics differs from the traditional scientific procedure, because it does not try to explain phenomena by searching for their causes, but rather by specifying the constraints that determine the direction of their development.
The value of global modelling has been severely restricted by poor appreciation of the constraints under which governments and politicians operate. Equally, the value of governments and politicians has been severely restricted by largely ignoring the very real but less immediate problems tackled by modellers.