Synthesis, Structure And Protective Properties Of Tetra Sodium Nitrilo- Tris- Methylene Phosphonate Zincate Tridecahydrate Na4 [ N( Ch2 Po3)

2016 ◽  
pp. 323-332
Keyword(s):  
Protective Properties ◽  
Tetra Sodium

Heat resistance of coatings metal deposited by nickel-manganese-molybdenum fl ux-cored wire

2020 ◽  
pp. 511-515
Author(s):  
E.N. Eremin ◽  
A.S. Losev ◽  
I.A. Ponomarev ◽  
S.A. Borodikhin
Keyword(s):  
Heat Resistance ◽  
Elevated Temperatures ◽  
Mass Gain ◽  
Cored Wire ◽  
Protective Properties ◽  
Average Mass ◽  
Magnetite Fe3o4 ◽  
Hematite Fe2o3 ◽  
Nickel Manganese

The heat-resistance of coating from deposited steel 15N8G6M3FTB at temperature of 900 °С is studied. It is established that this dependence occurs in the first hours. The average mass gain of the metal scale of such coating at 900 °С is 0.0128 kg/(m2 •h). It is shown that the basis of metal scale of the composition 15N8G6M3FTB is hematite Fe2O3 and magnetite Fe3O4, as well as MnO, which have protective properties. The number of other phase compounds with high protective properties is negligible. The coating from steel 15N8G6M3FTB can be used for applying to the surface of parts operating at elevated temperatures.

scholarly journals Changes in the Population Size of Calbindin D-28k-Immunoreactive Enteric Neurons in the Porcine Caecum under the Influence of Bisphenol A: A Preliminary Study

Toxics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Ignacy Gonkowski ◽  
Slawomir Gonkowski ◽  
Ewa Dzika ◽  
Joanna Wojtkiewicz
Keyword(s):  
Bisphenol A ◽  
Calcium Binding ◽  
Neuronal Cells ◽  
Enteric Neurons ◽  
Toxic Activity ◽  
Protective Properties ◽  
Calcium Buffer ◽  
Preliminary Study ◽  
Living Organisms ◽  
Calbindin D

Calbindin D-28k (CB) is a calcium-binding protein widely distributed in living organisms that may act as a calcium buffer and sensory protein. CB is present in the enteric nervous system (ENS) situated in the gastrointestinal tract, which controls the majority of activities of the stomach and intestine. The influence of various doses of bisphenol A (BPA)—a chemical compound widely used in plastics production—on the number and distribution of CB-positive enteric neuronal cells in the porcine caecum was investigated with an immunofluorescence technique. The obtained results showed that low dosages of BPA resulted in an increase in the number of CB-positive neuronal cells in the myenteric (MP) and inner submucous (ISP) plexuses, whereas it did not alter the number of such neuronal cells in the outer submucous plexus (OSP). High dosages of BPA caused the increase in the amount of CB-positive perikarya in all the above-mentioned kinds of the caecal neuronal plexuses. These observations strongly suggest that CB in the ENS participates in the processes connected with the toxic activity of BPA. Most likely, the changes noted in this experiment result from the adaptive and protective properties of CB.

scholarly journals Nitriding of 304 Steel by a Nitrogen Plasma: Increasing Corrosion Resistance

1999 ◽  
Vol 23 (1) ◽  
pp. 38-39
Author(s):  
N. Bellakhal ◽  
K. Draou ◽  
J. L. Brisset
Keyword(s):  
Aqueous Solution ◽  
Stainless Steel ◽  
Corrosion Potential ◽  
Steel Sample ◽  
Nitrogen Plasma ◽  
304 Stainless Steel ◽  
Stainless Steel Sample ◽  
Protective Properties ◽  
Inductively Coupled ◽  
Working Parameters

Exposure of a 304 stainless steel sample to an inductively coupled low pressure radio frequency (RF) nitrogen plasma leads to the formation of a nitriding layer. The protective properties of this layer are investigated by electrochemical methods. The corrosion potential of the steel in an aqueous solution depends on the working parameters of the plasma such as the time exposure and the distance between the steel sample and the high voltage (HV) coil of the treatment reactor.

Skin-protective properties of peptide extracts produced from white sorghum grain kafirins

2021 ◽  
Vol 167 ◽  
pp. 113551
Author(s):  
Tania P. Castro-Jácome ◽  
Luz E. Alcántara-Quintana ◽  
Efigenia Montalvo-González ◽  
Alejandra Chacón-López ◽  
Marco A. Kalixto-Sánchez ◽  
...  
Keyword(s):  
Protective Properties ◽  
Sorghum Grain

scholarly journals Identification of linear epitopes on the flagellar proteins of Clostridioides difficile

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
A. Razim ◽  
K. Pacyga ◽  
P. Naporowski ◽  
D. Martynowski ◽  
A. Szuba ◽  
...  
Keyword(s):  
Digestive Tract ◽  
In Silico ◽  
Anaerobic Bacterium ◽  
Vaccine Antigen ◽  
Protective Properties ◽  
Clostridioides Difficile ◽  
Vaccine Antigens ◽  
Linear Epitopes ◽  
Flagellar Proteins

AbstractClostridioides difficile (C. difficile) is an opportunistic anaerobic bacterium that causes severe diseases of the digestive tract of humans and animals. One of the possible methods of preventing C. difficile infection is to develop a vaccine. The most promising candidates for vaccine antigens are the proteins involved in the adhesion phenomena. Among them, the FliC and FliD are considered to be suitable candidates. In this paper, the FliC and FliD protein polypeptide epitopes were mapped in silico and by using PEPSCAN procedure. We identified four promising epitopes: 117QRMRTLS123, 205MSKAG209 of FliC and 226NKVAS230, 306TTKKPKD312 of FliD protein. We showed that 117QRMRTLS123 sequence is not only located in TLR5-binding and activating region, as previously shown, but forms an epitope recognized by C. difficile-infected patients’ antibodies. 205MSKAG209 is a C. difficile-unique, immunogenic sequence that forms an exposed epitope on the polymerized flagella structure which makes it a suitable vaccine antigen. 226NKVAS230 and 306TTKKPKD312 are well exposed and possess potential protective properties according to VaxiJen analysis. Our results open the possibility to use these epitopes as suitable anti-C. difficile vaccine antigens.

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