scholarly journals Ontology-based Model for Security Assessment: Predicting Cyberattacks Through Threat Activity Analysis

2020 ◽  
Author(s):  
Pavel Yermalovich ◽  
Mohamed Mejri
Keyword(s):  
Activity Analysis ◽  
Security Assessment

UKRAINIAN ENTERPRISES INNOVATIVE ACTIVITY ANALYSIS

2018 ◽  
Vol 44 (2) ◽  
pp. 122-128
Author(s):  
A. V. Skubilina ◽  
◽  
О. O. Makeeva ◽  
Keyword(s):  
Activity Analysis ◽  
Innovative Activity

Antifungal activity analysis of 3 essential oils (thyme, ajwainand orange) on candida albicans

2017 ◽  
Vol 6 (3) ◽  
pp. 2948-2950
Author(s):  
Vaishnavi Sivakali Subramanian ◽  
◽  
R.V Geetha ◽  
Anitha Roy ◽  
◽  
...  
Keyword(s):  
Candida Albicans ◽  
Antifungal Activity ◽  
Essential Oils ◽  
Activity Analysis

Iridium-Catalyzed Silylation of C-H bonds in Unactivated Arenes: A Sterically-Encumbered Phenanthroline Ligand Accelerates Catalysis Enabling New Reactivity

2019 ◽  
Author(s):  
Caleb Karmel ◽  
Zhewei Chen ◽  
John Hartwig
Keyword(s):  
High Activity ◽  
Functional Group ◽  
Activity Analysis ◽  
High Reactivity ◽  
High Yield ◽  
Phen Ligand ◽  
Mechanistic Studies ◽  
Phenanthroline Ligand ◽  
First Time ◽  
New System

We report a new system for the silylation of aryl C-H bonds. The combination of [Ir(cod)(OMe)]<sub>2</sub> and 2,9-Me<sub>2</sub>-phenanthroline (2,9-Me<sub>2</sub>phen) catalyzes the silylation of arenes at lower temperatures and with faster rates than those reported previously, when the hydrogen byproduct is removed, and with high functional group tolerance and regioselectivity. Inhibition of reactions by the H<sub>2</sub> byproduct is shown to limit the silylation of aryl C-H bonds in the presence of the most active catalysts, thereby masking their high activity. Analysis of initial rates uncovered the high reactivity of the catalyst containing the sterically hindered 2,9-Me<sub>2</sub>phen ligand but accompanying rapid inhibition by hydrogen. With this catalyst, under a flow of nitrogen to remove hydrogen, electron-rich arenes, including those containing sensitive functional groups, undergo silylation in high yield for the first time, and arenes that underwent silylation with prior catalysts react over much shorter times with lower catalyst loadings. The synthetic value of this methodology is demonstrated by the preparation of key intermediates in the synthesis of medicinally important compounds in concise sequences comprising silylation and functionalization. Mechanistic studies demonstrate that the cleavage of the aryl C-H bond is reversible and that the higher rates observed with the 2,9-Me<sub>2</sub>phen ligand is due to a more thermodynamically favorable oxidative addition of aryl C-H bonds.

Food Security Doctrine – What Has Changed in 2020

2020 ◽  
pp. 7-10
Author(s):  
T.M. Yarkova ◽  
Keyword(s):  
Food Security ◽  
Public Administration ◽  
Russian Federation ◽  
Structural Changes ◽  
Food Policy ◽  
Assessment System ◽  
Security Assessment ◽  
Social Bias ◽  
The Russian Federation ◽  
And Control

This article presents an analysis of the changes that have occurred in one of the most important state documents - the Food Security Doctrine of the Russian Federation. Criticism of this document can be traced in many scientific works: some experts attribute the Doctrine only to a program document, while others expect it to be implement and control, i.e. much more in practice. An assessment of the significance and essence of such a document as the doctrine as a whole made it possible to determine its place both in the system of public administration and the degree of its significance in the regulatory field. Based on the findings, an attempt was made to analyze changes in the new Doctrine of Food Security of the Russian Federation, approved by Decree of the President of Russia No. 20 of 01.21.2020. Structural changes in the new Doctrine are highlighted, as well as a critical assessment of the features of all its main sections. The greatest changes were revealed in the state food security assessment system, and it was also determined that the new version of the Doctrine has a greater social bias. If there are positive changes, some omissions of the most important areas of agri-food policy have been identified, which, despite their absence or insufficient reflection in the Doctrine, can be presented and decided at the level of subsequent documents, but only if the Doctrine in practice will be a fundamental document of public administration and regulatory framework.

RECOMBINANT EXPRESSION AND ANTIMICROBIAL ACTIVITY ANALYSIS OF TRANSFERRIN IN ASIAN YELLOW POND TURTLE

2013 ◽  
Vol 36 (5) ◽  
pp. 892-897
Author(s):  
Ming-Ying GAO ◽  
Xin-Ping ZHU ◽  
Yan SHI ◽  
Jian ZHAO ◽  
Mi ZHAO
Keyword(s):  
Antimicrobial Activity ◽  
Recombinant Expression ◽  
Activity Analysis ◽  
Pond Turtle ◽  
Asian Yellow Pond Turtle

Prokaryotic expression and activity analysis of insulin-like growth factor-Ⅰ fromEpinephelus septemfasciatus

2013 ◽  
Vol 37 (9) ◽  
pp. 1290
Author(s):  
Shengyi CHEN ◽  
Xinfu LIU ◽  
Yongjiang XU ◽  
Zhiliang LIU ◽  
Xuezhou LIU ◽  
...  
Keyword(s):  
Growth Factor ◽  
Prokaryotic Expression ◽  
Activity Analysis ◽  
Insulin Like Growth Factor ◽  
Expression And Activity
Sign in / Sign up

Export Citation Format

Share Document