3121255 documents found, page 311715 of 312126

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Análise do ciclo de vida do azeite: caso de estudo do azeite de Trás-os-Montes

Cunha, Mário Sérgio Vieira da

O sector do azeite é um importante sector económico no nosso país. Sendo Portugal um grande consumidor deste produto, é também um dos principais produtores Europeus (o quarto maior produtor da Europa, atrás da Grécia, Itália e Espanha) e um dos principais exportadores. A nível nacional, a região de Trás-os-Montes é, segundo o Recenseamento Agrícola de 2009, a segunda maior região olivícola e a primeira ao nível...

Date: 2014   |   Origin: Biblioteca Digital da UPB

Nest-site selection by roseate terns breeding on aride island, Seychelles

Ramos, Jaime

Nest-site selection by tropical Roseate Terns (Sterna dougallii) was examined on Aride Island, Seychelles. Continuous variables reflecting concealment of the nest site, shelter, vegetation cover and intraspecific nest density were measured for nest-sites and random points. Seasonal variation in the initiation of nests with overhangs and their influence on hatching success and adult intraspecific aggression towa...

Date: 1998   |   Origin: Biblioteca Digital da UPB

Equilibrium studies for the adsorption of fructo-oligosaccharides on a Dowex Mo...

Nobre, Clarisse; Vaňková, K.; Peres, António M.; Polakovič, M.; Teixeira, José; Rodrigues, Lígia R.

Fructo-oligosaccharides (FOS), namely kestose, nystose and fructo-furanosylnystose, are prebiotic sugars that can be obtained from sucrose by fermentation. The resulting fermentative broth is a complex mixture containing also salts and other smaller sugars that must be removed. In this study, a Dowex Monosphere calcium resin was evaluated for the separation of sugars. The adsorption behavior of FOS contained in...

Date: 2012   |   Origin: Biblioteca Digital da UPB

Consumo de queijos DOP da região de Trás-os-Montes no concelho de Bragança

Fernandes, António; Ribeiro, Maria Isabel; Cabo, Paula; Matos, Alda

Este estudo tem como objetivos conhecer o perfil do consumidor de queijos DOP (Denominação de Origem Protegida) da Região de Trás-os-Montes; descrever os seus hábitos de compra; e, descrever os hábitos de consumo de queijo. Para isso, foi conduzido um estudo quantitativo, descritivo, observacional e transversal. O questionário foi administrado, diretamente, a 400 indivíduos do concelho de Bragança, durante os m...

Date: 2013   |   Origin: Biblioteca Digital da UPB

Understanding the role of local tourist actors as online destination promoters:...

Marinho, Madalena; Correia, Ricardo; Morais, Elisabete Paulo

Local communities are taking an increasingly major role in communicating a destination in terms of contact with tourists. Based on the assumption that tourist entities and agents are part of this community, it can be assumed that it is necessary for the territorial marketing regulators to promote their involvement. This communication is progressively generated through information and communication technologies ...

Date: 2021   |   Origin: Biblioteca Digital da UPB

Prática de ensino supervisionada em educação pré-escolar e ensino do 1.º ciclo ...

Batista, Sofia Adelaide Pinheiro Miranda

O presente relatório assenta na descrição dos estágios realizados em educação pré-escolar e 1º Ciclo do Ensino Básico entre fevereiro e junho de 2011 e, outubro e fevereiro de 2012, respetivamente. No âmbito da educação pré-escolar, aceitamos como referenciais pedagógicos o modelo curricular HighScope e as Orientações Curriculares para Educação Pré-escolar. Para o 1º Ciclo do Ensino Básico utilizamos, sempre qu...

Date: 2012   |   Origin: Biblioteca Digital da UPB

Modelling of lead removal by aquatic an moss

Martins, Ramiro; Boaventura, Rui

Aquatic bryophytes are frequently used as biomonitors for trace metals in aquatic ecosystems. Nevertheless, their special characteristics also allow using them as biosorbents to clean industrial wastewaters. As biosorption is a low cost and effective method for treating metal-bearing wastewaters, understanding the process kinetics is relevant for design purposes. In this study, the ability of the aquatic bryoph...

Date: 2011   |   Origin: Biblioteca Digital da UPB

Parameter estimation of a pulp digester model with derivative-free optimization...

Seiça, J.C.; Romanenko, Andrey; Fernandes, Florbela P.; Santos, Lino O.; Fernandes, Natércia C.P.

The work concerns the parameter estimation in the context of the mechanistic modelling of a pulp digester. The problem is cast as a box bounded nonlinear global optimization problem in order to minimize the mismatch between the model outputs with the experimental data observed at a real pulp and paper plant. MCSFilter and Simulated Annealing global optimization methods were used to solve the optimization proble...

Date: 2017   |   Origin: Biblioteca Digital da UPB

Probiotic and prebiotics: impact on bioavailability of aflatoxin B1 in milk

Vasconcelos, Rute; Wochner, Katia F.; Becker-Algeri, Tania Aparecida; Rodrigues, Paula; Drunkler, Deisy A.

Milk represents one of the most important dietary sources of nutrients for humans due to its rich nutritional composition. However, milk consumption is also potentially related to the ingestion of chemical contaminants such as mycotoxins. Aflatoxin B1 (AFB1) is a highly toxic mycotoxin, for both animals and humans. This toxin is frequently detected in milk, and it results from the ingestion of contaminated fee...

Date: 2016   |   Origin: Biblioteca Digital da UPB

RAPIDS - Research Administration Professional IDentity Values Scale

Fischer, Melinda; Santos, José M.R.C.A.; Kerridge, Simon

The RAPIDS project aims to be a significant step forward in the development and professionalization of the research administration field. The creation of a Professional Identity Values Scale for Research Administrators will provide a comprehensive understanding of the values and professional identity of RAs. This, in turn, will benefit individuals by helping them align with their peers and grow professionally, ...

Date: 2023   |   Origin: Biblioteca Digital da UPB

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