text: and 901 of the researchers live In Mexico City and most of them belong to just four Institutions. -The academic level of the researchers is Improving, but on the whole It Is still low In compar !son with the advanced countries. Around 251 of the basic science researchers have a doctorate and another Z51 a masters 'egree. Education requirements for an associate researcher In most of the centers of the subsystem are very low usually a Bachelors' degr~e. -Within the subsystem are found relatively strong and wei I developed research groups <particularly In agronomy• biomedicine, physics and certain areas of engineering and social sciences), with other ~ery smal I and weak groups who have little or no Impact. -Stl II lacking are practice for the groups and centers. a set of eva I uatlon standards and general lzed of researchers. research -The best endowed component of the subsystem, In so far as human resources are concerned, Is basic research, but still lacking are policies, organization and mechanism to participate In projects I Inked to solving serious national problems. -The disparity between Mexico's needs and the scarcity of healthy research groups Is notorious; groups are needed for research on earth and marine sciences, meteorology, biology. economy and chemistry. In the first three areas. a differentiation of actlvttles must be established between centers of appl led research and those that compile data on natlnal resources and conditions. -The bond between national and International research centers for the exchange of· data, Information and researchers In on the whole rnssuf lclent and. In some cases. non-existent. -Domestic scientific equipment and materials are scarce and expensive and special lzed workshops for their repair and maintenance are Insufficient and, In some areas, non­ existent. -Some centers have economic Instability Insufficient and untimely financing. 
analysis: The text primarily focuses on the current state and challenges of the scientific research system in Mexico, discussing the academic level of researchers, research groups, and funding. It highlights the disparities between the country's needs and the availability of research groups, equipment, and financing. This suggests that the text is more concerned with the development of science and technology in Mexico rather than other areas.