As the pressure builds on the government to review its decision to abolish tax relief on employer-supported childcare vouchers, Downing Street advisers have dug up more examples of non-desirable uses of the benefit to justify its abolition.
An example of a desirable book at the high end of the spectrum might be a well-preserved limited first edition of "Ulysses".
Beyond its being an unrestored example of the desirable split-window '63 coupe, this car had been ordered new with the Z06 option, a package that included the 360-horsepower engine, a stiffer suspension and lighter, faster-acting brakes.
Unemployment remains at a high level, but those concerned about inflation say that general stimulus will not help because the problems are structural, including, for example, a lack of desirable skills.
A theme of the consultation process was about the need for change and the policy choices: that care needs could be met in a number of different ways with different consequences, for example, in terms of desirable intakes into university and college courses.
In Pebble Beach, Calif., in August, collectors fought for the best examples of rare and desirable automobiles.
In the design of transport aircraft, for example, there are a multitude of desirable characteristics, such as range, speed, payload, and safety, to be maximized, as well as undesirable characteristics, such as noise generation and air pollution, to be minimized.
The ectodermally-derived hindgut is the "last chance saloon" for rescue of desirable solutes (for example, water, ions, sugars, amino acids).
Extreme loading in a seaway and broaching-to are two examples of situations when it is desirable, indeed necessary, to take account of nonlinear effects.
