0 a card, often with a photograph or picture on one side, that can be sent without an envelope --
1 a small, rectangular card, often with a picture on one side, that can be sent in the mail without an envelope: --
a picture postcard
2 a small piece of very thin cardboard that you can send by mail without an envelope: --
The postcard users are often from extended families whose younger members have been dispersed by the labour market across urban and rural areas.
The response rate was maximized by sending non-responders a postcard reminder followed by a duplicate questionnaire and finally a second postcard reminder.
The response rate was quite high for the postcards, but considerably lower for the follow-up questionnaires.
This was not unexpected since the postcards were extremely brief and designed to quickly determine whether the technologies were available in the hospitals.
Before mailing the questionnaire, a "refuse to participate" postcard was sent (143 physicians refused to participate).
I can write a short, simple postcard, for example sending holiday greetings.
But smaller developments may also prove instrumental: those as specific as tourism (and its postcards) and advertising (and its logos).
Especially in the production of postcards this imaginary world is continued, eagerly bought by tourists who thus carry on and cherish illusionary images of reality.
