following counts for the selected word pairs, of 2-nd and 3-rd level of subordination, in thousands:

The texts of abstracts itself are provided in the appendix.

Results

The narrative and subject of the first study is fairly original, although the matters around chitosan are widely discussed. Some of the threads in the narrative are anyway anchored in common terms of biochemistry, like it is shown below; the originality is anyway looks to be preserved. The threads from the term "chitin" are anchored in the systems biology and usage of some common phrases is visible.in the systems biology and usage of some common phrases is visible.

The language of the two text anyway intersects in some wide and more narrow terms of molecular biology, at a level of proteins and regulation of metabolites. The declared findings of the authors are not centered in these subjects. But anyway this level of knowledge looks like an only direction were some co-operation can be established.

Discussion

The changes in science are expressed in what is shown below: a "boldness" of scientific subjects become not as "flat" as before. In a terms of socio-economy, the Gini inequality in the topmost subjects becomes higher. The same happened for the topmost brand names of scientific groups and for the fame of the most famous researchers.

The scientific search which binds together these separate topmost directions is anyway continue to develop, in the remaining area of "not-so-popular" studies. The science in a straight and conventional meaning is a highly organized entity of co- operating investigators. In the same way cells are arranged in a tree, as it is schematically drawn below. In a mushroom the over-weight in complexity is higher in a fruiting body and in endings below the ground (rhizomorphs). Citing [3], "By comparing these functionally different structures (fruiting body and rhizomorps), we can get to the basics of how complex multicellularity emerges — one of the major questions in evolution".

What is already known is that chitin and structures from chitin contribute a lot to emergence of this multicellularity in fungi. Chitin structures is an obvious object for attacks and ability to modify chitin is a matter of survival for this multicelluar entity.

In an asco-mycota fungi, like common yeast or candida species, multicellularity in some way supported in a formless entities like a human body or even in contamination of medicinal equipmement. The loop is this way closed - efforts to improve medicinal surfaces by chitosane is in co- or contra- interference with activity of many specific enzymes in common dirt.

The rules of the game in modern science anyway influence choice of subjects for research. And in the case example considered above, chitin and chitosan appeared in titles as a subject of research not by chance.

The plants and fungi  are in some way  opposed  in wild.  The fungi  are "predators" and "strong players" comparing to any of the trees. But if to look on a stability of species, plants appear to be winners in this opposition. Citing [4], "land plants exhibit an alternation of generations, with complex multicellular bodies developing in both the haploid and diploid stages of their life cycle". Continuing to cite [4], "One thing that is clear is that the choice of possibilities for plant researchers is large and open—and that any information obtained about any plant model will be applicable to studies of other plants, improving our understanding of the evolution, diversification, and fundamental properties of plants."

The multi-cellularity of plants is different from that of fungi, the tree grow up and the micellium is distributed in deep. The course of any evolution can have two directions, towards a slow decay or towards a sudden break. The same is about the development of any knowledge - the two directions are met in the same scene. The "optimism" of the review [4] is a part of truth, an opposite trend towards increase of misunderstanding is observed with an increasing rate.

In both cases, the matter is not about a course and a direction. The science in a "best" meaning is a constructive cooperation, and a trend toward inequality and competition observed here is obviously destructive. In the examples above, the neutral approach to studies of both surface materials and adaptation of enzymes isexpected to put more attention to the complex and less competitive investigations of molecular interactions.