Can be no substitute for good communication

CO2 can be good for you!

The role of exercise testing and gas-exchange measurement in the prognostic assessment of patients with heart failure. The study of the effects of noninvasive positive pressure ventilation to reduce chronic compensated CO 2 retention in COPD patients 1 ignores the possible adaptive advantage of " resetting " the Pco 2 to a higher level than normal. As experts in the mechanics of COPD have argue...

Can trade be good for the environment?

We analyze the impact of trade in a differentiated good on environmental policy when there is local and transboundary pollution. In autarky, the (equivalent) pollution tax is set equal to the marginal damage from own emissions. If the strategic policy instrument is a tax, leakage occurs under trade and tends to lower the tax. The net terms of trade effect, due to the exportable and importable v...

Can cannabis be considered a substitute medication for alcohol?

AIMS Substituting cannabis for alcohol may reduce drinking and related problems among alcohol-dependent individuals. Some even recommend prescribing medical cannabis to individuals attempting to reduce drinking. The primary aim of this review is to assess whether cannabis satisfies the seven previously published criteria for substitute medications for alcohol [e.g. 'reduces alcohol-related harm...

Can Market Forces Be Used for Good?

Representations Can Be Good Enough

When working remotely with physical objects obvious problems of reference arise because of the lack of a mutually shared object. Systems aiming to support such work tend to be based on understandings of face-to-face interaction and frequently use video. However, video introduces new interactional problems. This paper describes a field study of remote interaction around objects that is telephone...