scholarly journals The Study of Soil Cover Structure Southwestern Part of Absheron

2020 ◽  
Vol 6 (7) ◽  
pp. 102-106
Author(s):  
F. Manafova ◽  
G. Aslanova
Keyword(s):  
Soil Cover ◽  
Biological Properties ◽  
Theoretical Studies ◽  
Thematic Maps ◽  
Natural Structure ◽  
Southwestern Part ◽  
Soil Structures ◽  
Soil Cover Structure ◽  
Physicochemical And Biological Properties

The problem of the connection of the structures of objects of nature (forms and their relationships) with their properties has always been relevant. There is a need to show on the map the natural structure of the soil cover, taking into account the topography. Such maps are used in theoretical studies and are practically applicable. Therefore, for many years, soil scientists have been searching for methods that would allow them to highlight soil structures on thematic maps. Based on the studies, the soil cover structures of Absheron and the adjacent territories of Gobustan were determined. Structures are formed by a combination of soil bodies. The internal qualities of these structures, their soil content, and the physicochemical and biological properties characteristic of them were determined. The paper provides a description.

Soil and ecological division into districts of the Baikal region

2018 ◽  
Vol 940 (10) ◽  
pp. 54-64 ◽  
Author(s):  
I.A. Belozertseva ◽  
A.A. Sorokovoj
Keyword(s):  
Baikal Region ◽  
Soil Cover ◽  
Soil Formation ◽  
Forest Steppe ◽  
Leading Role ◽  
Soil Cover Structure ◽  
Reflecting Surface ◽  
Heat And Moisture ◽  
Made In

On the basis of long-term researches of soils in the territory of Russia and Mongolia soil and ecological division into districts of the Baikal region is carried out. At division into districts the whole set of an environment of soil formation was considered. On the map of soil and ecological division into districts 13 mountain, mid-mountain, low-mountain taiga, foothill, hollow-valley, forest-steppe and steppe provinces reflecting surface device originality as the ratio of balance of heat and moisture forming a basis to zoning is shown against the background of difficult orography are allocated. In total 42 districts on lithologic-geomorphological features are allocated. In formation of distinctions of a soil cover of these provinces the leading role is played by bioclimatic factors and inside them the lithologic-geomorphological ones. In the view of structural approach of the district they are considered as territories with a certain natural change of several types of the soil cover structure caused by features of a relief and the parent rock. The map is made in the MapInfo program. It is revealed that on ill-defined width zoning of soils the vertical one which has a greater influence on soils of this region is imposed. Soils of the Baikal region are not similar to the soils located at the same latitude of the flat European territory of Russia. Zone soils of this territory are specific and original.

scholarly journals The Influence of Bloom Index, Endotoxin Levels and Polyethylene Glycol Succinimidyl Glutarate Crosslinking on the Physicochemical and Biological Properties of Gelatin Biomaterials

Biomolecules ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1003
Author(s):  
Zhuning Wu ◽  
Stefanie H. Korntner ◽  
Jos Olijve ◽  
Anne Maria Mullen ◽  
Dimitios I. Zeugolis
Keyword(s):  
Elastic Modulus ◽  
Polyethylene Glycol ◽  
Enzymatic Degradation ◽  
Structural Integrity ◽  
Biological Response ◽  
Biological Properties ◽  
Compression Stress ◽  
Free Amine ◽  
Amine Content ◽  
Physicochemical And Biological Properties

In the medical device sector, bloom index and residual endotoxins should be controlled, as they are crucial regulators of the device’s physicochemical and biological properties. It is also imperative to identify a suitable crosslinking method to increase mechanical integrity, without jeopardising cellular functions of gelatin-based devices. Herein, gelatin preparations with variable bloom index and endotoxin levels were used to fabricate non-crosslinked and polyethylene glycol succinimidyl glutarate crosslinked gelatin scaffolds, the physicochemical and biological properties of which were subsequently assessed. Gelatin preparations with low bloom index resulted in hydrogels with significantly (p < 0.05) lower compression stress, elastic modulus and resistance to enzymatic degradation, and significantly higher (p < 0.05) free amine content than gelatin preparations with high bloom index. Gelatin preparations with high endotoxin levels resulted in films that induced significantly (p < 0.05) higher macrophage clusters than gelatin preparations with low endotoxin level. Our data suggest that the bloom index modulates the physicochemical properties, and the endotoxin content regulates the biological response of gelatin biomaterials. Although polyethylene glycol succinimidyl glutarate crosslinking significantly (p < 0.05) increased compression stress, elastic modulus and resistance to enzymatic degradation, and significantly (p < 0.05) decreased free amine content, at the concentration used, it did not provide sufficient structural integrity to support cell culture. Therefore, the quest for the optimal gelatin crosslinker continues.

The depolymerization of chitosan: effects on physicochemical and biological properties

2004 ◽  
Vol 281 (1-2) ◽  
pp. 45-54 ◽  
Author(s):  
Shirui Mao ◽  
Xintao Shuai ◽  
Florian Unger ◽  
Michael Simon ◽  
Dianzhou Bi ◽  
...  
Keyword(s):  
Biological Properties ◽  
Physicochemical And Biological Properties

Rational design and fabrication of a β-dicalcium silicate-based multifunctional cement with potential for root canal filling treatment

2014 ◽  
Vol 2 (24) ◽  
pp. 3830-3838 ◽  
Author(s):  
Xianyan Yang ◽  
Min Liu ◽  
Yu Zhao ◽  
Hongyu Jia ◽  
Sanzhong Xu ◽  
...  
Keyword(s):  
Root Canal ◽  
Rational Design ◽  
Biological Properties ◽  
Dicalcium Silicate ◽  
Root Canal Therapy ◽  
Root Canal Filling ◽  
Physicochemical And Biological Properties

Gypsum-introduced, CaO-rich dicalcium silicate-based cements exhibit multifunctional physicochemical and biological properties and meet some challenging criteria in root canal therapy.

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