Hyperspherical coordinates and energy partitions for reactive processes and clusters

2019 ◽  
Author(s):  
Andrea Lombardi ◽  
Federico Palazzetti ◽  
Mikhail B. Sevryuk
Keyword(s):  
Hyperspherical Coordinates ◽  
Reactive Processes

Collective hyperspherical coordinates for polyatomic molecules and clusters

2000 ◽  
Vol 98 (21) ◽  
pp. 1763-1770 ◽  
Author(s):  
Vincenzo Aquilanti, Andrea Beddoni, Simonett
Keyword(s):  
Polyatomic Molecules ◽  
Hyperspherical Coordinates

scholarly journals Experimental and ab initio studies of the reactive processes in gas phase i-C3H7Br and i-C3H7OH collisions with potassium ions

2014 ◽  
Vol 141 (16) ◽  
pp. 164310 ◽  
Author(s):  
E. López ◽  
J. M. Lucas ◽  
J. de Andrés ◽  
M. Albertí ◽  
J. M. Bofill ◽  
...  
Keyword(s):  
Phase I ◽  
Ab Initio ◽  
Gas Phase ◽  
Potassium Ions ◽  
Reactive Processes

Continuum Thermodynamics of Constrained Reactive Mixtures

2021 ◽  
Author(s):  
Gerard A. Ateshian ◽  
Brandon Zimmerman
Keyword(s):  
Heat Supply ◽  
Damage Mechanics ◽  
Reactive Power ◽  
Mixture Theory ◽  
Biological Tissues ◽  
Heat Of Reaction ◽  
Chemical Potentials ◽  
Ideal Gases ◽  
Reactive Processes ◽  
Energy Of Formation

Abstract Mixture theory models continua consisting of multiple constituents with independent motions. In constrained mixtures all constituents share the same velocity but they may have different reference configurations. The theory of constrained reactive mixtures was formulated to analyze growth and remodeling in living biological tissues. It can also reproduce and extend classical frameworks of damage mechanics and viscoelasticity under isothermal conditions, when modeling bonds that can break and reform. This study focuses on establishing the thermodynamic foundations of constrained reactive mixtures under more general conditions, for arbitrary reactive processes where temperature varies in time and space. By incorporating general expressions for reaction kinetics, it is shown that the residual dissipation statement of the Clausius-Duhem inequality must include a reactive power density, while the axiom of energy balance must include a reactive heat supply density. Both of these functions are proportional to the molar production rate of a reaction, and they depend on the chemical potentials of the mixture constituents. We present novel formulas for the classical thermodynamic concepts of energy of formation and heat of reaction, making it possible to evaluate the heat supply generated by reactive processes from the knowledge of the specific free energy of mixture constituents as well as the reaction rate. We illustrate these novel concepts with mixtures of ideal gases, and isothermal reactive damage mechanics and viscoelasticity, as well as reactive thermoelasticity. This framework facilitates the analysis of reactive tissue biomechanics and physiological and biomedical engineering processes where temperature variations cannot be neglected.

Benchmarking an improved statistical adiabatic channel model for competing inelastic and reactive processes

2021 ◽  
Vol 155 (10) ◽  
pp. 104302
Author(s):  
Maarten Konings ◽  
Benjamin Desrousseaux ◽  
François Lique ◽  
Jérôme Loreau
Keyword(s):  
Channel Model ◽  
Reactive Processes

Comparison of reactive processes in the rat brain elicited by xenotransplantation of nervous tissues of chicken or pulmonate snail

2001 ◽  
Vol 915 (2) ◽  
pp. 125-132 ◽  
Author(s):  
Elena V Loseva ◽  
Valentin N Vorobyev ◽  
Irina V Ermakova ◽  
Nadegda N Lermontova ◽  
Tiyna G Alekseeva ◽  
...  
Keyword(s):  
Rat Brain ◽  
Pulmonate Snail ◽  
Reactive Processes

scholarly journals MicroRNAs in Psychological Stress Reactions and Their Use as Stress-Associated Biomarkers, Especially in Human Saliva

2017 ◽  
Vol 2 (3) ◽  
pp. 1-15 ◽  
Author(s):  
Conrad Wiegand ◽  
Andreas Savelsbergh ◽  
Peter Heusser
Keyword(s):  
Psychological Stress ◽  
Human Saliva ◽  
Reaction Pathways ◽  
Stress Reactions ◽  
Cellular Processes ◽  
Noninvasive Biomarkers ◽  
As Stress ◽  
Acute Psychological Stress ◽  
The Brain ◽  
Reactive Processes

MicroRNAs (miRNAs) play a central role in the regulation of many cellular processes including physiological and psychological stress reaction pathways. Psychological stress is an important factor for the genesis and maintenance of many diseases. Several miRNAs have already been described to be involved in its regulation. The presence of miRNAs in all body fluids implies a widespread role in communication throughout the whole organism and together with their stability makes them formidable candidates as biomarkers. Alterations of stress-associated miRNA expression levels have been found in the brain and whole blood of humans and animals. In this paper, we review the participation of miRNAs in stress-reactive processes as well as their usability as salivary biomarkers of such processes. In conclusion, we suggest that salivary miRNAs may be useful as noninvasive biomarkers to assess epigenetic regulation processes of chronic or acute psychological stress reactions.

scholarly journals Experience of application of topichesky naturopathic means for patients with ent pathology

2019 ◽  
pp. 33-37
Author(s):  
G. N. Nikiforova ◽  
V. M. Svistushkin ◽  
L. S. Karapetian
Keyword(s):  
Clinical Practice ◽  
Surgical Interventions ◽  
Arnica Montana ◽  
Analgesic Effects ◽  
Reactive Changes ◽  
Inflammatory Processes ◽  
Post Traumatic ◽  
Reparative Effect ◽  
Anti Inflammatory ◽  
Reactive Processes

Post-traumatic reactive changes in the area of ENT-organs can cause cosmetic defects, contribute to the development of infectious and inflammatory processes. The formation of limited edema and bruising is natural after certain even adequately performed surgical interventions. In clinical practice, the question arises of the effective and safe use of local drugs that have anti-inflammatory, anti-edema and analgesic effects to accelerate the course of post-traumatic reactive processes. Naturopathic agents have high safety, sufficiently pronounced anti-inflammatory, analgesic and reparative effect. The drug based on arnica mountain (Arnica montana) is a unique topical drug that only contains fresh Arnica plants in a concentration of 7% TM. Efficiency and high safety of this drug allows us to recommend it for the treatment of bruises and hematomas of the skin in the area of ENT-organs, including after surgical interventions.

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