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If there is a peculiarity in the way of doing science and in the way of communicating science in Brazil, it is in the use of the idea of "deficit" in political and economic discourses, as well as in the discourses of socio-technical networks. Our proposal here is not to affirm or reject the existence of this deficit, but rather to understand its workings and its construction as a way of bringing about networks of interest that make use of this idea. For us, this is not an idea which is restricted to the discourse of researchers or of journalists and scientific broadcasters; there is also an echo in the general society, and in different spheres and situations. The idea of deficit with regard to scientific knowledge is functional in Brazil, in conjunction with the idea that the country itself has a deficiency in relation to developed countries. It is as if there were two levels of deficit which join together and empower each other.

The objective of the present paper is an attempt to measure the public understanding of science in the area of health and hygiene and test the efficacy of "cultural distance model". A pre-tested open-ended questionnaire was used for administering cross-sectional surveys at a religio-cultural festival in India. 3484 individuals were interviewed and responses were coded and entered to construct computer database. The data was used for determining the cultural distance of five scientific concepts from the quotidian life of the target population. In developing countries, the formal system of modern education operates as a strong determinant in shaping cultural structures of thoughts prevalent among the citizens. There exists a cultural distance between the scientific structure of configuring natural occurrences and peoples' complexity of thoughts. The distance varies significantly across the concepts that were subjected to the inspection and is a function of the nature of scientific information.

The international symposium Science on air: the role of radio in science communication was held in Trieste on 1 and 2 October, 2004. To our knowledge, it is the first conference ever specifically held on science in radio, and it is certainly the first time science radio journalists, researchers, and media experts from 16 different countries met to discuss their journalistic practice and the role of radio in science communication. The main results are presented in this section.

What makes a science story? Behind the scene there are many choices: what, how and when to broadcast. Decisions are made according to the general criteria of news values to which we add two groups: personal and emerging criteria. General criteria of choices are news values for the science stories. According to Tonner, stories containing human interest are important in everyday life, report less complicate discoveries and science as a part of the broader subject comes to the media easily.

Historical background The BBC Radio Science Unit has its roots in two radio networks, going back more than 40 years. In the late 1950s, BBC External Services (now World Service), appointed a science correspondent and began a weekly science magazine programme. Initially called `Science and Industry', it changed its name in about 1964 to `Science in Action'. It is still running today, after more than 2000 editions, probably making it the longest running science show on radio.

The Regional Park of the Po River Delta1 was set up in 1988 (it belongs to a Consortium of Public Bodies). It extends over 54,000 hectares of land and stretches across 45 km of the Italian Eastern coastline (45 km of the more than 90 km that go between the provinces of Ferrara and Ravenna)2 and is one of the largest and most significant natural parks in Italy.

The eighth convention of the PCST (Public Communication of Science and Technology) network, which took place in Barcelona this June, emphasised an increasing richness in reflection and practice with regard to several themes to do with science communication. This growing variety mirrors the different approaches gradually coming about in different cultural and geographical contexts. In particular, the Focus of this issue of JCOM concentrates on a presentation of the models of interpretation of science communication referring to the Mediterranean and South American cultural area.

The concept of a biosphere reserve was adopted by UNESCO, within the MAB Programme, launched in 1971, in order to promote and to demonstrate the harmonious relationships that should exist between people and the environment and, particularly, to promote a harmonization model of the environmental protection needs with those of the sustainable economical-social development. All the international conventions, the management and action plans accomplished in order to achieve the sustainable development objectives underline the great importance to establish a constructive dialogue, with impact on the long term decisions, between the decision makers and the wide public (especially with the local population).

In the name of God is the heading chosen by some researchers from a Middle Eastern country for their posters in an international conference on chemistry which has recently been held in Paris. This powerful message preceded the results of the researchers' work on the morphology, molecular structure, as well as the physical, chemical and mechanical properties of advanced polymeric materials. It was an unexpected statement, an unusual message, though certainly not an unprecedented one. It had nonetheless a striking effect in the context of a scientific conference attended by thousands of people from various ethnic and religious backgrounds.