Biomedical Open Access Journals

Abstract

#Atrialfibrillation (AF) is the most common #arrhythmia and affects 1% of the population. It is associated with the need for oral anticoagulation therapy for stroke prevention. Based on the fact that more than 90% of stroke causing thrombus has its origin within the leftatrialappendage (LAA) [1], #nonpharmacological approaches such as isolation of LAA from the blood circulation were proposed. However, this invasive way of stroke prevention has its own risk related to the device and procedure.

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https://biomedres.us/abstracts/BJSTR.MS.ID.001055.php

https://biomedres.us/fulltexts/BJSTR.MS.ID.001055.php

Successful Percutaneous Closure of Left Atrial Appendage with Periprocedural #Hemorrhage Stopped by the Implanted Device by Tomasz Mazurek in BJSTR

The Application of #Strontiumdodeceyl Sulfate, #Sr(Ds)2 in the #Synthesis Of #4,4’-Diaminotriarylmethanes by Farahnaz K Behbahani in BJSTR

Abstract

A fast, efficient and versatile route for the synthesis of 4,4’-#diaminotriarylmethanes using #Sr(DS)2 as a Lewis #acid-surfactant-combined catalyst, LASCs in the presence of N,#N-dimethyl aniline and aryl aldehydes is reported. #LASCs not only act as a Lewis acid to activate substrate molecules, but also serve as a #surfactant to form stable colloidal dispersion systems with organic substrates. Also, the others advantages of LASCs are easy separation and recovery, high activity, selectivity, as a Lewis acid to activate the substrate molecules and as a surfactant to help to solubilize the organic compounds in water. In this project a variety of aryl #aldehydes were subjected to synthesize of 4,4’-diaminotriarylmethanes in the presence of #strontiumdodeceyl sulfate, N,N-dimethyl aniline under solvent free condition and at 100 °C%.

https://biomedres.us/abstracts/BJSTR.MS.ID.000655.php 

https://biomedres.us/pdfs/BJSTR.MS.ID.000655.pdf 

https://biomedres.us/fulltexts/BJSTR.MS.ID.000655.php 

The Application of #Strontiumdodeceyl Sulfate, #Sr(Ds)2 in the #Synthesis Of #4,4’-Diaminotriarylmethanes by Farahnaz K Behbahani in BJSTR

The Use of #Volatile #Inhibitors to Suppress #Corrosion of Metals in the Atmosphere of #Livestock Buildings by LE Tsygankov in BJSTR

Abstract

At room temperature, the protective efficacy of the #volatile inhibitors (VIC) “IFHAN-A” (A-112, 114 and 118) was studied under atmospheric #corrosion of carbon steel St3, brass L62 and copper M2 in the presence of #corrosionstimulants (CS) in the air: CO₂ ((0.2-0.6) vol. %); H₂S ((10- 30) mg /m₃); NH₃ ((20-60) mg /m₃) and 100% relative humidity, which simulates the atmosphere of livestock buildings. In the case of carbon steel in the presence of a binary mixture of CSs: CO₂+NH₃, CO₂+H₂S and NH₃+H₂S, the protective action of the #VIC is between 67 and 95%. When corrosion of brass and copper, the protective capacity of #IFHAN-112 and IFHAN-118 decreases accordingly to 10 (Cu, IFHAN-112, NH₃+H₂S) and 13 (brass, IFHAN-118, СО₂+H₂S) % or 30% (brass, IFHAN-118, NH₃+H₂S). These VIC stimulate copper corrosion in the presence of a binary mixture (CO₂ + H₂S). Only in the presence of IFHAN-114, the protective effect does not decrease below 74%.

https://biomedres.us/abstracts/BJSTR.MS.ID.000654.php 

https://biomedres.us/pdfs/BJSTR.MS.ID.000654.pdf 

https://biomedres.us/fulltexts/BJSTR.MS.ID.000654.php 

The Use of #Volatile #Inhibitors to Suppress #Corrosion of Metals in the Atmosphere of #Livestock Buildings by LE Tsygankov in BJSTR