Role of Physical Factors in the Process of Obtaining Copolymers

2006 ◽  
pp. 129-188 ◽  
Author(s):  
Semion I. Kuchanov ◽  
Alexei R. Khokhlov
Keyword(s):  
Physical Factors

scholarly journals The emerging role of mechanical and topographical factors in the development and treatment of nervous system disorders: dark and light sides of the force

2021 ◽  
Author(s):  
Natalia Bryniarska-Kubiak ◽  
Andrzej Kubiak ◽  
Małgorzata Lekka ◽  
Agnieszka Basta-Kaim
Keyword(s):  
Nervous System ◽  
Physical Factors ◽  
Nervous System Diseases ◽  
Therapeutic Approaches ◽  
System Disease ◽  
New Therapeutic Approaches ◽  
The Subject ◽  
Topographical Factors ◽  
New Treatment

AbstractNervous system diseases are the subject of intensive research due to their association with high mortality rates and their potential to cause irreversible disability. Most studies focus on targeting the biological factors related to disease pathogenesis, e.g. use of recombinant activator of plasminogen in the treatment of stroke. Nevertheless, multiple diseases such as Parkinson’s disease and Alzheimer’s disease still lack successful treatment. Recently, evidence has indicated that physical factors such as the mechanical properties of cells and tissue and topography play a crucial role in homeostasis as well as disease progression. This review aims to depict these factors’ roles in the progression of nervous system diseases and consequently discusses the possibility of new therapeutic approaches. The literature is reviewed to provide a deeper understanding of the roles played by physical factors in nervous system disease development to aid in the design of promising new treatment approaches. Graphic abstract

The role of physical factors in the complex therapy of patients with rheumatoid arthritis

1985 ◽  
Vol 66 (4) ◽  
pp. 318-318
Author(s):  
L. V. Chernetsova ◽  
A. G. Ibragimova
Keyword(s):  
Rheumatoid Arthritis ◽  
Comparative Analysis ◽  
Drug Therapy ◽  
Electromagnetic Waves ◽  
Physical Factors ◽  
Complex Therapy ◽  
Decimeter Range

The comparative analysis of treatment of 76 patients with rheumatoid arthritis using electromagnetic waves of the decimeter range and lithium electrophoresis, depending on the activity of the process and the type of drug therapy.

On Approaches to Taking into Account the Risks of Changing Climatic Conditions when Planning and Implementing Oil and Gas Projects

2021 ◽  
Vol 18 (1) ◽  
pp. 52-65
Author(s):  
P. N. Mikheev
Keyword(s):  
Climate Change ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Climatic Conditions ◽  
Qualitative Assessment ◽  
Physical Factors ◽  
Gas Industry ◽  
Climate Risks ◽  
The Impact

The article discusses issues related to the impact of climate change on the objects of the oil and gas industry. The main trends in climate change on a global and regional (on the territory of Russian Federation) scale are outlined. Possible approaches to the identification and assessment of climate risks are discussed. The role of climatic risks as physical factors at various stages of development and implementation of oil and gas projects is shown. Based on the example of oil and gas facilities in the Tomsk region, a qualitative assessment of the level of potential risk from a weather and climatic perspective is given. Approaches to creating a risk management and adaptation system to climate change are presented.

scholarly journals A bridge to progress further afield: The promise of a common framework on attentional capture

2021 ◽  
Author(s):  
Steven Most ◽  
Kim Curby
Keyword(s):  
Attentional Capture ◽  
Attentional Biases ◽  
Perceptual Expertise ◽  
Physical Factors ◽  
Attentional Allocation ◽  
Clinical Disorders ◽  
Common Framework ◽  
Emotional Resonance ◽  
Advance Theory

Although physical salience looms large in the attentional capture literature, stimuli can also capture attention via salience deriving from non-physical factors. Such psychological salience can stem, for example, from the emotional resonance of stimuli or their relevance to a person’s expertise. We consider how insights from a recently proposed framework for attentional capture can be used to advance theory and drive research on the role of emotion-driven attentional biases in clinical disorders and on how attentional allocation changes with the development of perceptual expertise. In return, we wonder how their common framework can be enriched through considerations of psychological salience.

scholarly journals Role of mechanical cues and hypoxia on the growth of tumor cells in strong and weak confinement: A dual in vitro–in silico approach

2020 ◽  
Vol 6 (13) ◽  
pp. eaaz7130 ◽  
Author(s):  
V. Le Maout ◽  
K. Alessandri ◽  
B. Gurchenkov ◽  
H. Bertin ◽  
P. Nassoy ◽  
...  
Keyword(s):  
In Silico ◽  
Time Course ◽  
Growth Dynamics ◽  
Tumor Model ◽  
Mechanistic Modeling ◽  
Physical Factors ◽  
Factors Affecting ◽  
Numerical Studies

Characterization of tumor growth dynamics is of major importance for cancer understanding. By contrast with phenomenological approaches, mechanistic modeling can facilitate disclosing underlying tumor mechanisms and lead to identification of physical factors affecting proliferation and invasive behavior. Current mathematical models are often formulated at the tissue or organ scale with the scope of a direct clinical usefulness. Consequently, these approaches remain empirical and do not allow gaining insight into the tumor properties at the scale of small cell aggregates. Here, experimental and numerical studies of the dynamics of tumor aggregates are performed to propose a physics-based mathematical model as a general framework to investigate tumor microenvironment. The quantitative data extracted from the cellular capsule technology microfluidic experiments allow a thorough quantitative comparison with in silico experiments. This dual approach demonstrates the relative impact of oxygen and external mechanical forces during the time course of tumor model progression.

Investigation the role of psychological, environmental and physical factors in tendency to addiction

2011 ◽  
Vol 26 (S2) ◽  
pp. 84-84
Author(s):  
S.J. Mosavi Amiri
Keyword(s):  
Psychological Factors ◽  
Physical Factors ◽  
Chi Square ◽  
Treatment Methods ◽  
Effective Factors ◽  
Prevention And Treatment ◽  
First Cause ◽  
And Control

Introduction & objectivesFor better understanding of the effective factors in tendency to addiction, the research aimed to survey this question what is the first cause of addiction? Psychological, Environmental or Physical causes.Method80 addicted people were randomly selected and Abuse Drug Assessment Inventory (ADAI) was administered on them. Chi Square formula was used to analyze the results.ResultsFindings showed 55 percent of tendency to addiction was psychological. Also more analyzing showed 65 percent of continuing causes of addiction were psychological factors such as fear, anxiety, sorrow.ConclusionIn regard to results we should put more emphasis on psychological prevention and treatment methods so that both tendency to addiction and continuing causes of addiction decrease and control.

scholarly journals Response to Mechanical Cues by Interplay of YAP/TAZ Transcription Factors and Key Mechanical Checkpoints of the Cell:A Comprehensive Review

2021 ◽  
Vol 55 (1) ◽  
pp. 33-60
Keyword(s):  
Growth Factors ◽  
Focal Adhesions ◽  
Small Gtpases ◽  
Cell Behavior ◽  
Physical Factors ◽  
Binding Motif ◽  
Cell Behaviors ◽  
Key Factor ◽  
Scaffold Materials

Many factors including growth factors (GF), scaffold materials, and chemical and physical cues determine the cell behaviors. For many years, growth factors have been considered as the pivotal cell behavior regulators, whereas recent studies emphasize also the key role of physical factors such as mechanical forces, cell shape, surface topographies, and extracellular matrix (ECM) in regulating the cell proliferation, apoptosis, differentiation, etc. through mechanotransduction pathways. In this process, the cell morphology and mechanical properties of the cell's micro/ nano-environments and ECM can be conveyed to the nucleus by regulating transcriptional factors such as Yes-associated protein and transcriptional coactivator with PDZ-binding motif (TAZ). Generally, YAP/TAZ activity is considered as the key factor for the growth of whole organs, however, recent studies have also repeatedly addressed the role of YAP/TAZ in mechanotransduction. In this review, the biological functions of the YAP/TAZ pathway and its contribution to the mechanotransduction and cell behavior regulation in response to the mechanical cues have been summarized. Also, the role of key mechanical checkpoints in the cell including focal adhesions, cytoskeletal tension, Rho small GTPases, and nuclear membrane protein elements involved in the transfer of environmental mechanical cues from the cell surface to the nucleus and their effect in regulating the YAP/TAZ activity are discussed.

scholarly journals PHYSICAL FACTORS AND THEIR ROLE IN ONCOLOGY

2019 ◽  
Vol 1 (3) ◽  
pp. 12-17 ◽  
Author(s):  
T Ya Kucherova ◽  
M V Vusik ◽  
O V Cheremisina
Keyword(s):  
Physical Therapy ◽  
Tumor Growth ◽  
Light Therapy ◽  
Physical Factors ◽  
Historical Aspect ◽  
Scientific Results ◽  
Effective Adjunct ◽  
Stimulate Tumor Growth

The analysis of the effect of various physical therapy methods on tumor growth in the historical aspect and comparison with our own scientific results were carried out. The role of physical therapy methods such as galvanization (electrophoresis), light therapy (ultraviolet irradiation, lasers of different light wave spectra), alternating currents (UHF, microwave, inductothermia), mechanical vibrations (ultrasound, vibration), magnetic field, pulse currents (DDT, SMT), high voltage currents (darsonvalization), and thermal factors (mud and heat treatment) in stimulation of tumor growth was studied. The results of our own studies confirm the statement that the physiotherapeutic factors used do not stimulate tumor growth, and can have a beneficial influence on the improvement of the quality of life of cancer patients. Thus, there is a growing evidence that physiotherapy is a safe and effective adjunct to cancer treatment.

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