Beyond the basics: A systematic approach for comprehensive analysis of organic materials in Asian lacquers

The article focuses on the assessment and evaluation of the passability in densely populated parts of cities with multi-storey housing estates, in terms of the operation of the integrated rescue system (IRS) in the Czech Republic. The aim of the research is to minimize the arrival times to conduct the intervention as efficiently as possible. The presented problem is caused by unsystematic development of housing estates and the emergence of secondary problems in the form of inability to reach the place of intervention by the larger IRS vehicles. The vision presented in this document presents a systematic approach to improve the serviceability of individual blocks of flats. The main aim is to ensure passability, even for the largest equipment, such as fire engine ladders. Detailed mapping of the selected sites by drones, construction of their digital model, and subsequent virtual verification of the passability by specific vehicle models on identified access roads was performed. The results obtained by this procedure can then be implemented in the navigation of the fire safety forces and facilitate their arrival at the site of intervention. At the end, specific ways are presented in which the whole system can be modified to be able to intuitively change and choose individual access routes in real time, based on the current situation in the area.

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ДЕМОГРАФІЧНА БЕЗПЕКА В СУЧАСНОМУ УЗБЕКИСТАНІ

TIME DESCRIPTION OF ECONOMIC REFORMS ◽

10.32620/cher.2020.2.03 ◽

2020 ◽

pp. 22-30

Author(s):

Л. П. Максакова

Keyword(s):

Systematic Approach ◽

Social Protection ◽

Preventive Measures ◽

Comprehensive Analysis ◽

Demographic Development ◽

Demographic Situation ◽

Interstate Cooperation ◽

The Republic ◽

Favorable State ◽

Main Material

The article considers the current demographic situation of Uzbekistan in the aspects of demographic security. This is an urgent line of research, covering the concept of demographic security, a comprehensive analysis of the demographic situation, highlighting the main phenomena and trends that could pose potential threats to the demographic development of the population of the republic. The purpose of the article is to characterize the situation with demographic issues in Uzbekistan. Subject of study. Theoretical and practical aspects of the demographic situation of modern Uzbekistan regarding globalization and its trends. The methods used in the study: a systematic approach, structural logical and statistical analysis, synthesis, generalization. The hypothesis of the study involves the use of the approach of determining the demographic crisis in the context of globalization. Statement of the main material. The studies revealed that, despite the relatively favorable state of the demographic situation, certain potential threats and risks to demographic security were outlined in Uzbekistan. Originality and practical value of the study. Preventive measures are proposed for the qualitative development of the demographic situation and to prevent the development of negative trends in the future. Conclusions. Two main directions for solving the demographic problem are proposed. The first is to curb the scale of labor migration by expanding employment opportunities in places of permanent residence. The second is the achievement of more effective interstate cooperation: the introduction into practice of modern forms of organized export of labor, the strengthening of integration processes in the labor markets and social protection of migrants.

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PURE: A Framework for Analyzing Proximity-based Contact Tracing Protocols

ACM Computing Surveys ◽

10.1145/3485131 ◽

2023 ◽

Vol 55 (1) ◽

pp. 1-36

Author(s):

Fabrizio Cicala ◽

Weicheng Wang ◽

Tianhao Wang ◽

Ninghui Li ◽

Elisa Bertino ◽

...

Keyword(s):

Systematic Approach ◽

Comprehensive Analysis ◽

Contact Tracing ◽

Main Design

Many proximity-based tracing (PCT) protocols have been proposed and deployed to combat the spreading of COVID-19. In this article, we take a systematic approach to analyze PCT protocols. We identify a list of desired properties of a contact tracing design from the four aspects of Privacy, Utility, Resiliency, and Efficiency (PURE). We also identify two main design choices for PCT protocols: what information patients report to the server and which party performs the matching . These two choices determine most of the PURE properties and enable us to conduct a comprehensive analysis and comparison of the existing protocols.

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Cell–cell contact landscapes in Xenopus gastrula tissues

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.2107953118 ◽

2021 ◽

Vol 118 (39) ◽

pp. e2107953118

Author(s):

Debanjan Barua ◽

Martina Nagel ◽

Rudolf Winklbauer

Keyword(s):

Systematic Approach ◽

Cell Attachment ◽

Dominant Role ◽

Comprehensive Analysis ◽

Cell Contact ◽

Complex Interactions ◽

Contact Width ◽

Specific Contact ◽

Mediate Cell ◽

Cell Cell

Molecular and structural facets of cell–cell adhesion have been extensively studied in monolayered epithelia. Here, we perform a comprehensive analysis of cell–cell contacts in a series of multilayered tissues in the Xenopus gastrula model. We show that intercellular contact distances range from 10 to 1,000 nm. The contact width frequencies define tissue-specific contact spectra, and knockdown of adhesion factors modifies these spectra. This allows us to reconstruct the emergence of contact types from complex interactions of the factors. We find that the membrane proteoglycan Syndecan-4 plays a dominant role in all contacts, including narrow C-cadherin–mediated junctions. Glypican-4, hyaluronic acid, paraxial protocadherin, and fibronectin also control contact widths, and unexpectedly, C-cadherin functions in wide contacts. Using lanthanum staining, we identified three morphologically distinct forms of glycocalyx in contacts of the Xenopus gastrula, which are linked to the adhesion factors examined and mediate cell–cell attachment. Our study delineates a systematic approach to examine the varied contributions of adhesion factors individually or in combinations to nondiscrete and seemingly amorphous intercellular contacts.

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Problems of concluding business contracts in electronic form

Linguistics and Culture Review ◽

10.21744/lingcure.v5ns2.1417 ◽

2021 ◽

Vol 5 (S2) ◽

pp. 751-763

Author(s):

Valentyn S. Shcherbyna ◽

Viktoriia V. Rieznikova ◽

Valeria V. Radzyviliuk ◽

Svitlana I. Bevz ◽

Iryna M. Kravets

Keyword(s):

Systematic Approach ◽

Comprehensive Analysis ◽

Electronic Signature ◽

Electronic Signatures ◽

Noticeable Increase ◽

Electronic Form ◽

Business Operations ◽

Business Opportunities ◽

New Business ◽

Modern Technologies

Due to the evolution of modern technologies, first of all the internet, new business opportunities are emerging. Therefore, there is a need to find new forms of concluding contracts. To save time, more and more contracts are concluded in electronic form. In addition, in recent years, there has been a noticeable increase in the use of electronic signatures in business operations. Therewith, an electronic signature of documents is a convenient alternative to handwritten signatures. The purpose of the study is a comprehensive analysis of the problems of concluding business contracts in electronic form and a comparative legal study of the legislation of Austria, Great Britain, Germany, France, and Ukraine regarding the conclusion of such contracts at the international and European levels. The study is based on a systematic approach that helps to comprehensively study the problems of concluding business contracts in electronic form. Furthermore, the study is based on the laws and principles of dialectics, which also contribute to the study of the problems of concluding business contracts in electronic form.

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Some Aspects of Price Formation in the Metal Market

Voprosy sovremennoj nauki i praktiki Universitet imeni V I Vernedskogo ◽

10.17277/voprosy.2021.03.pp.050-059 ◽

2021 ◽

pp. 050-059

Author(s):

M. G. Tindova ◽

I. M. Kublin

Keyword(s):

Systematic Approach ◽

Comprehensive Analysis ◽

Price Formation ◽

Mathematical Methods ◽

Economic Relations ◽

Advantages And Disadvantages ◽

Modern Economic ◽

Market Trends ◽

Global Aluminum ◽

The Cost

The analysis of existing methods of pricing is carried out, the key advantages and disadvantages of each approach are identified, and conclusions are presented regarding the study of the problem of forming the cost of aluminum in the market. Trends in the development of the aluminum market in modern economic relations are analyzed using mathematical methods and directions of development, as well as possible solutions. A systematic approach to the analysis of the problems of pricing for aluminum in the world, taking into account the market conditions, is presented. The key approaches to pricing have been identified, which, together with the results of a comprehensive analysis, make it possible to determine the criteria for setting prices and assess the possibility of applying pricing methods in the global aluminum market.

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Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100072666 ◽

1973 ◽

Vol 31 ◽

pp. 444-445

Author(s):

P.J. Killingworth ◽

M. Warren

Keyword(s):

Electron Beam ◽

Organic Materials ◽

Operating Parameters ◽

Low Density ◽

Beam Diameter ◽

Incident Electron Beam ◽

Specimen Material ◽

Voltage Compensation ◽

Selection Of ◽

Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

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200kv superconducting cryo electron microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100127645 ◽

1987 ◽

Vol 45 ◽

pp. 642-643

Author(s):

M. Iwatsuki ◽

Y. Kokubo ◽

Y. Harada ◽

J. Lehman

Keyword(s):

Electron Microscope ◽

Structure Analysis ◽

Organic Materials ◽

Strong Interactions ◽

Specimen Preparation ◽

Great Effort ◽

Electron Microscopic ◽

Crystal Fields ◽

Special Skill ◽

Long Time

In recent years, the electron microscope has been significantly improved in resolution and we can obtain routinely atomic-level high resolution images without any special skill. With this improvement, the structure analysis of organic materials has become one of the interesting targets in the biological and polymer crystal fields.Up to now, X-ray structure analysis has been mainly used for such materials. With this method, however, great effort and a long time are required for specimen preparation because of the need for larger crystals. This method can analyze average crystal structure but is insufficient for interpreting it on the atomic or molecular level. The electron microscopic method for organic materials has not only the advantage of specimen preparation but also the capability of providing various information from extremely small specimen regions, using strong interactions between electrons and the substance. On the other hand, however, this strong interaction has a big disadvantage in high radiation damage.

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STM of freeze-fracture replicas: Problems and promises

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100146187 ◽

1993 ◽

Vol 51 ◽

pp. 68-69

Author(s):

J. T. Woodward ◽

J. A. N. Zasadzinski

Keyword(s):

Scanning Tunneling Microscope ◽

Organic Materials ◽

Freeze Fracture ◽

Atomic Resolution ◽

Scanning Tunneling ◽

Tunneling Microscope ◽

Molecular Scale ◽

Organic Surfaces ◽

Metal Layers ◽

Conductive Surfaces

The Scanning Tunneling Microscope (STM) offers exciting new ways of imaging surfaces of biological or organic materials with resolution to the sub-molecular scale. Rigid, conductive surfaces can readily be imaged with the STM with atomic resolution. Unfortunately, organic surfaces are neither sufficiently conductive or rigid enough to be examined directly with the STM. At present, nonconductive surfaces can be examined in two ways: 1) Using the AFM, which measures the deflection of a weak spring as it is dragged across the surface, or 2) coating or replicating non-conductive surfaces with metal layers so as to make them conductive, then imaging with the STM. However, we have found that the conventional freeze-fracture technique, while extremely useful for imaging bulk organic materials with STM, must be modified considerably for optimal use in the STM.

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Stabilizing pyritic material

The Paleontological Society Special Publications ◽

10.1017/s2475262200005207 ◽

1989 ◽

Vol 4 ◽

pp. 244-248 ◽

Cited By ~ 2

Author(s):

Donald L. Wolberg

Keyword(s):

Significant Contribution ◽

Organic Materials ◽

Sedimentary Rocks ◽

Iron Sulfides ◽

Decomposition Products ◽

Iron Minerals ◽

Pyrite Formation ◽

Organic Sediments ◽

Freshwater Environments

The minerals pyrite and marcasite (broadly termed pyritic minerals) are iron sulfides that are common if not ubiquitous in sedimentary rocks, especially in association with organic materials (Berner, 1970). In most marine sedimentary associations, pyrite and marcasite are associated with organic sediments rich in dissolved sulfate and iron minerals. Because of the rapid consumption of sulfate in freshwater environments, however, pyrite formation is more restricted in nonmarine sediments (Berner, 1983). The origin of the sulfur in nonmarine environments must lie within pre-existing rocks or volcanic detritus; a relatively small, but significant contribution may derive from plant and animal decomposition products.

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