Morais site, located in the northeast of Portugal, is known by its geology because it is one of the most representative areas of ultramafic rocks. This kind of soils has particular chemical characteristics, such as high levels of some heavy metals, namely chromium (Cr) and nickel (Ni). However, in Morais site several non-wood forest products (NWFP) are collected by the local community, and, so, it is of great i...
The Morais Natura 2000 Site (PTCON0023), located in the northeast of Portugal, is an area of very high geological and botanical interest. This site has in its core the Morais Ophiolite Complex that is one of the most representative areas of ultramafic rocks, and the largest continuous unit of serpentine soils in Portugal. These soils have particular chemical characteristics, such as high levels of some heavy me...
No presente trabalho pretendeu-se estudar o efeito da temperatura sobre as propriedades reológicas de três méis colhidos no nordeste de Portugal. Para isso, analisaram-se dois méis monoflorais - urze e rosmaninho - provenientes do Parque Natural de Montesinho, e um mel polifloral, recolhido na Freguesia de Morais, local de interesse geológico. O comportamento reológico destes méis foi avaliado às temperaturas d...
O mel é um produto biológico produzido pelas abelhas a partir do néctar recolhido das flores e processado pelas enzimas digestivas destes insetos. A sua produção é de elevada importância económica, principalmente para as comunidades rurais da zona de Trás-os-Montes. O mel tem inúmeras aplicações, além de apresentar propriedades antimicrobianas e antissépticas. A viscosidade é considerada uma das mais importante...
Polymers are part of our everyday lives. They assume different forms such as plastics, fibres, foams and elastomers. Its prevalence in modern society and impact on several industrial sectors is well recognized and motivates the development of different educational tools to support the demonstration of polymer chemistry principles, very often hard to rationalize. This work aims to present the work developed with...
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