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Pathological Manifestations on Concrete Bridges at Recife＇s Metropolitan Area

Journal of Civil Engineering and Architecture 2015年第9期9卷 1060-1068页

作者： eudes de arimatéa rocha Felipe José Salomao de Albuquerque Melo Severino Virgilio Silva Eliana Cristina Barreto Monteiro Rafaella Gatis Galvao department of Civil Engineering University of Pernambuco Recife 50720 001 Brazil department of Civil Engineering Catholic University of Pernambuco Recife 50050 900 Brazil

Bridges are structures being used to cross rivers, lakes or any other obstacles which involve water. These instruments are commonly used in cities like Recife, which consists of several islands. However, it is common in this city to observe the fast deterioration of these structures that have been built for decades and are subjected to structural recoveries only when they present a possible imminent collapse. The maintenance of these constructions, often used as tourist spots, is essential because of the economic importance, while these structures are responsible for transporting people and cargo, and also play a key role in the city＇s roads. This paper aims to present and assess the conservation status of these bridges through the study of possible pathologies found at Princesa Isabel Bridge, Government Agamenon Bridge, Ponte Giratória Bridge and Paulo Guerra Bridge. The methodology for its inspection will be prescribed by ABNT NBR-9452/86, which provides for ＂Surveys of Concrete Bridges/Viaducts＂. After analysis, it was found that most bridges problems were caused by the presence of moisture that accumulates in bridges due to the absence or malfunction of drainage systems.

关键词： Bridge maintenance pathological manifestations.

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Evaluation of Milk Compositional Quality and Mammary Gland Health of Dairy Herds in the Southwestern Brazilian Amazon

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Open Journal of Veterinary Medicine 2016年第9期6卷 139-148页

作者： Luciana G. Brito José R. Vieira Júnior Fábio da S. Barbieri Rodrigo B. rocha Marivaldo R. Figueiró Websten C. da Silva Gilvânia L. O. Carvalho José de arimatéia Silva Guilherme N. Souza Embrapa RondÔ nia Porto Velho Brazil Embrapa Eastern Amazon Belém Brazil Embrapa Dairy Cattle Juiz de Fora Brazil Emater RondÔ nia Porto Velho Brazil

Samples of raw milk from bulk cooling tanks were collected in five municipalities of the Southwestern Brazilian Amazon to establish the prevalence of Staphylococcus aueus and Streptococcus agalactiae, as well as to evaluate the milk composition and its correlation with the bulk tank somatic cell count (BTSCC). A total of 250 samples were collected to investigate the causal agents of bovine mastitis in whole milk, from 50 bulk milk tanks in each municipality. Under laboratory conditions, the samples were diluted to 1/10 and 1/100, and samples of 0.1 ml from each dilution were plated in triplicate on selective media for Staphylococcus aureus and Streptococcus agalactiae. To evaluate the correlation between the major milk components (fat, protein and lactose) and the BTSCC, samples were collected for 18 months from 73 dairy herds. The presence of the above-mentioned contagious mastitis pathogens was detected in 97.2% (243/250) of refrigerated raw milk samples evaluated. Analysis of the major milk components and BTSCC demonstrated that during the study period, fat compo-nent showed the largest variance, followed by protein and lactose, which also showed significant variances.

关键词： Bulk Tank Somatic Cell Count Udder Health Milk Quality Amazon Region

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