scholarly journals Cellulose Ether-Based Liquid Crystal Materials: Review Article

2021 ◽  
Vol 10 ◽  
pp. 69-83
Author(s):  
Altaf H. Basta ◽  
◽  
Vivian F. Lotfy ◽  
Jehane A. Micky ◽  
Aya M. Salem
Keyword(s):  
Liquid Crystal ◽  
Synergistic Effect ◽  
Ethyl Cellulose ◽  
Hydroxypropyl Cellulose ◽  
Review Article ◽  
Cellulose Ether ◽  
Material Chemistry ◽  
Cellulose Nanocomposites ◽  
Liquid Crystal Materials

The development of liquid crystal materials via nanotechnology has become an interesting subject of research in optical material chemistry. One of the significant nanomaterials is cellulose-based nanoparticles. In this review article, we highlighted the classification of liquid crystal materials (LCs), and types of cellulose-NPs and their characterization as LCs materials. Finally, we present our promising data on the synergistic effect of cellulose-NPs on liquid crystal behavior of ethyl cellulose- and hydroxypropyl cellulose- nanocomposites.

Photopolymerization-enforced stratification in liquid crystal materials

2021 ◽  
Vol 114 ◽  
pp. 101365
Author(s):  
Wei Zhao ◽  
Laurens T. de Haan ◽  
Dirk J. Broer ◽  
Yang Zhang ◽  
Pengrong Lv ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Materials

New columnar liquid crystal materials based on luminescent 2-methoxy-3-cyanopyridines

2014 ◽  
Vol 25 (4) ◽  
pp. 1165-1174 ◽  
Author(s):  
T. N. Ahipa ◽  
Vijith Kumar ◽  
Airody Vasudeva Adhikari
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Materials

THREATS TO NATIONAL SECURITY OF RUSSIA IN THE CONTEXT OF A HYBRID WAR

2021 ◽  
Vol 16 (3) ◽  
pp. 109-130
Author(s):  
A.S. MAKSIMOV ◽  
Keyword(s):  
Synergistic Effect ◽  
National Security ◽  
Negative Impact ◽  
Short Term ◽  
Economic Information ◽  
Hybrid Threats ◽  
Hybrid War ◽  
Political Economic ◽  
Verbal Model

This article is devoted to identifying and characterizing the threat to national security of Russian Federation in the context of a hybrid war. The main aim of the study is to assume that the huge problem for national security of Russia today is the threat of a hybrid nature. This paper proposes the author's classification of hybrid threats, which made it possible to distinguish five functional groups of threats («triads») ‒ in the spiritual and socio-cultural, military-political, economic, information and international legal spheres. The specificity of the «triads» is that each of the three elements of the «triad» is capable of producing the appearance of the second and third elements of the «triad» and maintaining their activity. A variant of ranking «triads» according to the level of their threat intensity is presented, the rates of their intensification in the short term were determined. According to the author's conclusions, the synchronous activity of the «triads» creates a synergistic effect, exerting a complicated negative impact on the state of national security of Russia. The novelty of the research, the results of which are presented in the article, are the classification of hybrid threats and the verbal model of the functioning of the «triads» of threats. The findings of the study can contribute to the development of effective techniques and strategies for countering hybrid threats to national security of Russia.

Borderline conditions in dermato-oncology

2021 ◽  
pp. 49-59
Author(s):  
S. P. Seleznev ◽  
O. B. Tamrazova ◽  
V. Yu. Sergeev ◽  
V. G. Nikitaev ◽  
A. N. Pronichev
Keyword(s):  
Squamous Cell Carcinoma ◽  
Clinical Presentation ◽  
Digital Processing ◽  
Review Article ◽  
Diagnostic Systems ◽  
Stepwise Approach ◽  
Cascade Models ◽  
Precancerous State

This review article provides an overview of the etiology, pathogenesis, clinical presentation, diagnosis, and treatment methods for actinic keratosis, keratoacanthoma, and Bowen’s disease. The provoking factors are described, where the main importance is attached to insolation, previous immunosuppression and immunodeficiency and trauma. The pathogenesis of these diseases is described in the form of cascade models. Various clinical forms and their main dermatoscopic features, suitable for digital processing in automated diagnostic systems, are presented. A stepwise approach to the treatment of these nosologies is described, and a preliminary prognosis is assessed based on the duration of progression and the likelihood of transformation into squamous cell carcinoma. Given the fact that dermato-oncologists have not yet come to a consensus on the classification of the described diseases, in this article they are considered as a borderline, thereby demonstrating a fine line of transition from a precancerous state to cancer in situ.

Clinico-pharmacological aspects of metoprolol use

2013 ◽  
Vol 10 (4) ◽  
pp. 80-83
Author(s):  
G S Anikin ◽  
I M Chernova ◽  
V G Vinokurov
Keyword(s):  
Heart Failure ◽  
Coronary Artery Disease ◽  
Review Article ◽  
Metoprolol Tartrate ◽  
Metoprolol Succinate ◽  
Treatment Of Hypertension ◽  
Cardiovascular Pathologies ◽  
Artery Disease

Over the years b-blocker metoprolol is one of the commonly prescribed drugs for the treatment of various cardiovascular pathologies . The following review article discusses the classification of b-blockers , and pharmacokinetics of two metoprolol forms available on the market today: metoprolol tartrate (Vasocardin, Corvitolum, Egilok ) and metoprolol succinate (Betaloc ZOK). The role of metoprolol in the treatment of hypertension, coronary artery disease and heart failure is described here as well.

Controlling the Selective Light Reflection of a Cholesteric Liquid Crystal of (Hydroxypropyl)cellulose by Electrical Stimulation

1998 ◽  
Vol 31 (7) ◽  
pp. 2384-2386 ◽  
Author(s):  
Yoshiyuki Nishio ◽  
Toshinori Kai ◽  
Noritaka Kimura ◽  
Kazuhiro Oshima ◽  
Hidematsu Suzuki
Keyword(s):  
Electrical Stimulation ◽  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Hydroxypropyl Cellulose ◽  
Light Reflection
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