In this paper we show how the abstract behaviours of higherorder systems can be modelled as final coalgebras of suitable behavioural functors. These functors have the challenging peculiarity to be circularly defined with their own final coalgebra. Our main contribution is a general construction for defining these functors, solving this circularity which is the essence of higher-order behaviours...

SUMMARY We present a new solution to the tree drawing problem that integrates an excellent tree drawing algorithm into one of the best text processing systems available. More precisely, we present a T E X macro package called TreeT E X that produces drawings of trees from a purely logical description. Our approach has three advantages: labels for nodes can be handled in a reasonable way; portin...

In contrast to most ionic minerals studied by SFM, the periclase (001) surface dissolves not by retreat of monolayer steps parallel to (001), but by retreat of a rough surface perpendicular to (001). At pH , 2, dissolution has an additional contribution from retreating macro-steps at the edges of nearly square pits. The macro-steps have heights up to 120 nm. In general, step direction is parall...

For decades, researches were developed about the diversity of fishes in Amazon basin and their consumption by people. In this context, an important gap identified was a lack information nutritional composition some main fish species consumed traded. Front this, objective study to evaluate chemical mineral content filets from 10 with highest landing volume Amazonas State. The selected curimatã, ...

Marine algae are considered a source of different bioactive constituents including protein, oil, fiber, vitamins, pigments and dietary minerals. To evaluate the fine chemical biochemical properties marine microalga Nannochloropsis oculata macroalga Ulva lactuca, present study was carried out. The cultivated N. oculate collected U. lactuca were washed, oven-dried, ground subjected to analysis mo...

Chia (Salvia hispanica) seeds are oilseeds, often known as pseudo-cereals, which contain a variety of nutrients, including macro and micronutrients, well health aids; consequently, they could be classified nutraceuticals food. The wonderful source phenolic compounds like rosmarinic acid, caffeic protocatechuic acids, quercetin, myricetin. According to studies, chia have high nutritious content ...

This study aims to determine the levels of macro minerals such as potassium, calcium, sodium, and magnesium in fresh noni fruit. The sample fruit was destructed, then quantitative analysis were performed using atomic absorption spectrophotometry (AAS) at a wavelength 766.5 nm for potassium; 422.7 calcium; 589.0 sodium; 285.2 magnesium. advantages this method are selective sensitive. average % r...

The new approaches of the animal production systems make managing the mineral nutrition a challenge. Versus the excessive, trace mineral supply in intensively managed livestock, well above the physiological requirements, is the no trace mineral supplementation of organic systems, which become highly dependent on trace minerals in the soil. Nowadays, in addition to the animal health perspective,...

This article illustrates the importance of having analytical data on the vitamin and mineral contents of dietary supplements in nutrition studies, and describes efforts to develop an analytically validated dietary supplement ingredient database (DSID) by a consortium of federal agencies in the USA. Preliminary studies of multivitamin mineral supplements marketed in the USA that were analyzed as...

Globally, rejuvenation of soil health is a major concern due to the continuous loss fertility and productivity. Soil degradation decreases crop yields threatens global food security. Improper use chemical fertilizers coupled with intensive cultivation further reduces both yields. Plants require several nutrients in varying ratios that are essential for plant complete healthy growth development ...