Study on thermostabilizers for trivalent oral poliomyelitis vaccine

Different formulations of trivalent oral poliomyelitis vaccine were tested, in order to obtain better thermostability, reduce corrosion of machinery and improve production costs. Magnesium chloride, sucrose, arginine and 199-Hank's medium were used in the formulations. The most appropriate formulation was a mixture of MgCl2 and arginine, which was highly thermostable, and had low production costs. The low corrosive formulation was rejected, due to low thermostability on storage

[The northeast: recent population trends and new perspectives on population growth during the period 1980-2005]. / Nordeste: a dinamica populacional recente e as nova perspectivas de crescimento populacional para o periodo 1980-2005.

PIP: A review of population trends in northeastern Brazil is presented for the period from 1980 to the present, and estimated up to 2005. The analysis is undertaken separately for each of the region's 127 micro-regions. Prospects for demographic aging and the concentration of the population in the coastal regions are assessed. (SUMMARY IN ENG)^ieng

Study on thermostabilizers for trivalent oral poliomyelitis vaccine.

Different formulations of Trivalent Oral Poliomyelitis Vaccine were tested, in order to obtain better thermostability, reduce corrosion of machinery and improve production costs. Magnesium chloride, sucrose, arginine and 199-Hank's medium were used in the formulations. The most appropriate formulation was a mixture of MgCl2 and arginine, which was highly thermostable, and had low production costs.

[Recent demographic trends in the Northeast: their determinants and consequences]. / A recente dinamica demografica do Nordeste: seus determinantes e implicacoes.

PIP: Recent demographic trends in the northeast region of Brazil are analyzed, with particular reference to the region's socioeconomic development. The author focuses on the need to develop an effective employment policy, as well as the need to reduce mortality levels. The emphasis is on socioeconomic development planning (SUMMARY IN ENG)^ieng