OBJECTIVE: To determine the prevalence of hearing loss and to analyze the results of newborn hearing screening and audiological diagnosis in private health care systems. METHODS Cross-sectional and retrospective study in a database of newborn hearing screening performed by a private clinic in neonates born in private hospitals of Porto Velho, Rondônia, Northern Brazil. The screening results, the risk for hearing loss, the risk indicators for hearing loss and the diagnosis were descriptively analyzed. Newborns cared in rooming in with their mothers were compared to those admitted to the Intensive Care Unit regarding risk factors for hearing loss. RESULTS: Among 1,146 (100%) enrolled newborns, 1,064 (92.8%) passed and 82 (7.2%) failed the hearing screening. Among all screened neonates, 1,063 (92.8%) were cared in rooming and 83 (7.2%) needed intensive care; 986 (86.0%) were considered at low risk and 160 (14.0%) at high risk for hearing problems. Of the 160 patients identified as having high risk for hearing loss, 83 (37.7%) were admitted to an hospitalized in the Intensive Care Unit, 76 (34.5%) used ototoxic drugs and 38 (17.2%) had a family history of hearing loss in childhood. Hearing loss was diagnosed in two patients (0.2% of the screened sample). CONCLUSIONS: The prevalence of hearing loss in newborns from private hospitals was two cases per 1,000 evaluated patients. The use of ototoxic drugs, admission to Intensive Care Unit and family history of hearing loss were the most common risk factors for hearing loss in the studied population.

Wasted polystyrene (PS) plastic cups were used in the synthesis of sodium poly(styrenesulfonate) (NaPSS). The produced polyelectrolyte was water-soluble. The viscosimetric molecular weight was 126,146 g molThe sulfonation of the polymer was estimated through FTIR spectroscopy and chemical analysis of the number of sulfonic groups. The presence of bands at 1326 and 1188 cm Ϫ1 in the infrared spectra was characteristic for sulfonic groups. The polymer was obtained with 60.3% of sulfonation. An aqueous solution of NaPSS was used as an admixture in concrete of portland cement. The results showed that the slump increasing of the concrete was up to 300% with 0.3% content of NaPSS per weight of cement. It was possible to reduce the water content of the concrete in 13.2% using NaPSS solution as an admixture. The compressive strength gain was 23.9% after 28 days of curing. The results indicated that NaPSS, produced from waste PS cups, can be satisfactorily used either as a plasticizer or as an admixture for water reduction in concrete.

Esta resenha da obra “Circuitos de la economia urbana: ensayos sobre Buneos Aires e São Paulo” tem como objetivo apresentar as principais contribuições da cooperação entre pesquisadores argentinos e brasileiros unidos por um sentido comum: a produção de análises renovadas sobre as dinâmicas metropolitanas atuais à luz da teoria dos dois circuitos da economia urbana. Os onze textos que compõem o livro perpassam as novas relações entre os circuitos superior e inferior, assim como a expansão de sua porção marginal, explicitando as complexidades de um mercado metropolitano ao mesmo tempo unificado e segmentado, composto por relações de complementaridade e subordinação. O grande êxito da abordagem proposta por Silveira na organização desta obra reside na compreensão de que o valor dos circuitos da economia urbana e os limites entre eles são relacionais, ou seja, se redefinem continuamente em razão das modernizações que fazem elevar os graus de tecnologia, organização e capital, alterando a dialética dos circuitos e produzindo novos arranjos produtivos na metrópole.

Este trabalho tem como intuito analisar as articulações entre as lógicas espaciais do sistema bancário e as dinâmicas de valorização fundiária nas cidades de Presidente Prudente e São José do Rio Preto – SP nos anos de 2000 e 2010, avaliando suas repercussões na produção e uso do espaço urbano nestas cidades médias. A hipótese é de que há uma relação intrínseca entre a localização dos fixos bancários e as áreas de maior valorização fundiária nas duas cidades, reforçando processos de fragmentação e segregação socioespacial.

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