E/C.12/ARM/CO/2-3 23. The Committee is concerned about the poor condition of the infrastructure of many schools, despite the allocation of a dedicated budget for improving educational facilities. The Committee is also concerned about the fact that high-school students frequently need to seek private tutors in order to acquire the knowledge required to gain entry to higher education institutions, which also leads to disparities in enrolment rates on the basis of socioeconomic background and in turn limits social mobility (art. 13). The Committee recommends that the State party: (a) Use the resources allocated for the improvement of educational facilities more effectively, in response to the needs of students and teachers; (b) Reinforce efforts to ensure that poverty does not negatively affect a child’s education or work prospects. 24. The Committee is concerned about the significant proportion of children with disabilities who do not have access to formal education (18 %). The Committee is also concerned that, in spite of efforts by the State party to expand the network of inclusive schools, inclusive education has not yet been fully implemented. The Committee is also concerned about the limited access of persons with disabilities to cultural activities and the Internet (arts. 2, 13 and 15). The Committee recommends that the State party: (a) Take additional measures to expand access for persons with disabilities, in particular as regards transportation and physical access to educational institutions and cultural sites, and provide “reasonable accommodation” for persons with disabilities; (b) Accelerate the implementation of inclusive education for all children with disabilities. 25. The Committee is concerned about the limited public expenditure on science and research, and the decrease in the number of women scientists (art. 15). The Committee recommends that the State party increase public expenditure on science and research. D. Other recommendations 26. The Committee encourages the State party to consider signing and ratifying the Optional Protocol to the International Covenant on Economic, Social and Cultural Rights. 27. The Committee requests the State party to disseminate the present concluding observations widely at all levels of society, particularly among government officials, parliamentarians, judicial authorities and civil society organizations, and to inform the Committee on all steps taken to implement them in its next periodic report. It also encourages the State party to engage non-governmental organizations and other members of civil society in the process of discussion at the national level prior to the submission of its next periodic report. 28. The Committee requests the State party to submit its fourth periodic report in accordance with the guidelines adopted by the Committee in 2008 (E/C.12/2008/2), by 30 May 2019. 7