A Practical Guide to Concrete Pavement Technology for Developing Countries

This guide provides technical information for planning and constructing concrete pavement. Theoretical and practical considerations discussed are comprehensive, interesting, and useful especially for developing economies.

Scientific and technical information's restoration in the open access environment through smart search engines

Open access is one of the topics that attracted the researchers interest as it is a turning point for the recovery of technical and scientific information’s recovery which requires a set of tools and technical skills. This study aims to discover the main problems of information’s recovery within open access in addition to the inventory of the most important smart search engines and to know the strategies of information’s recovery. The study adopted the descriptive analytical approach, and came out with a number of important conclusions, the most important are : Searching for scientific and technical information in the open access environment has become a very difficult and the researcher does not know which of them is more useful. Relying on the common ranking of sites, smart search engines in its work, depends on semantic web applications, most notably XML, RDF and ontology, users can quickly find specific search results through smart search engines without having to become experts in search engines or have a well-defined strategies for searching within the open access environment. The study also showed that the semantic scholar search engine deals with open sources more efficiently than traditional search engines through its ability to discover these sources and display them to the beneficiary in a distinctive way.

About Cooperation with Bulgaria in Science and Education

The article is dedicated to the analysis of the current state of international cooperation Russia - Bulgaria in the field of science and education. Scientific and educational cooperation between Russia and Bulgaria is important for the Russian Federation, in addition, Bulgaria is a member of the International Center for Scientific and Technical Information from 1969. In this regard, it is interesting to present the materials of the monitoring of scientific and educational cooperation with Bulgaria in 2019, supplementing the latter with the results of the analysis of current documents 2020-2021.

Feasibility of creation and use of specialized search systems for scientific and technical information

The efficiency of using global Internet search systems versus specialized systems, including the State System of Scientific and Technical Information of the Republic of Belarus, for searching the scientific and technical information is compared in this article. Potential advantages and disadvantages of STI search systems are considered. The experience of individual states in creating and maintaining the functioning of state resources of scientific and technical information is analyzed.

An overview of family fish farming: social, politics and food security implications

One characteristic that can be observed in family farming is the diversity of activities that are carried out concurrently on the property, providing and guaranteeing products for personal consumption or sale over the course of the year. Fish farming, an activity destined for fish production, is often one of these activities developed by family farmers and contributes to the access to quality protein for rural families and to increase income. Furthermore, the techniques used for fish production in family farming can foment a sustainable form of production. However, the lack of incentives regarding extension projects, marketing barriers, the lack of integration of traditional communities in decision making, and the absence of adequate technical information for the reality of rural properties make this activity limited and even ineffective in some regions. The encouragement of this activity could provide family farmers with improved economic conditions and food security and, consequently, the reduction of poverty in rural areas. The present study originated from a bibliographic review that addresses the activity of fish production and its impacts on the development of rural family activities, food security, and public and social policies for the maintenance, regularity, and quality of the final product.

Preface

FOREWORD Name of the conference: XIX International Scientific and Practical Conference “ENERGY AND RESOURCE SAVING - XXI CENTURY” (ERS 2021). Location: Russia, 302026, Orel, st. Komsomolskaya d. 95, Department of Electrical Equipment and Energy Saving, FSBEI VO “OSU im. I.S. Turgenev”, tel.: (4862) 41-98-53, (4862) 41-98-30. Date: November 10 - 12, 2021 Format: remote. Founders: • MINISTRY OF SCIENCE AND HIGHER EDUCATION OF THE RUSSIAN FEDERATION • ORYOL REGIONAL GOVERNMENT • ACADEMY OF ELECTROTECHNICAL SCIENCES OF THE RUSSIAN FEDERATION • ADMINISTRATION OF THE CITY OF ORL • PADERBORN UNIVERSITY (Germany) • FEDERAL STATE BUDGETARY EDUCATIONAL INSTITUTION OF HIGHER EDUCATION “ORYOL STATE UNIVERCITY NAMED AFTER I.S. TURGENEV” • FEDERAL STATE BUDGET EDUCATIONAL INSTITUTION OF HIGHER EDUCATION “I.I. POLZUNOV ALTAI STATE TECHNICAL UNIVERSITY” • JSC “ORELOBLENERGO” • LLC ORLOVSKIY ENERGOSBYT • BRANCH OF PAO “MRSK CENTER” - “ORELENERGO” • DEPARTMENT OF ELECTRIC EQUIPMENT AND ENERGY SAVING • (Federal State Budgetary Educational Institution of Higher Education “I.S. Turgenev OGU”) Goals and objectives: development and popularization of the latest achievements of science, technology, as well as advanced experience in the implementation of energy and resource conservation, digital technologies in the electric power industry and electrical engineering; exchange of scientific and technical information for further expansion and strengthening of business contacts between domestic and foreign experts and firms. List of Information about editors - heads of sections are available in this pdf.

Constructing a model for the dynamic evaluation of vulnerability in software based on public sources

One of the key processes in software development and information security management is the evaluation of vulnerability risks. Analysis and evaluation of vulnerabilities are considered a resource-intensive process that requires high qualifications and a lot of technical information. The main opportunities and drawbacks of existing systems for evaluation of vulnerability risks in software, which include the lack of consideration of the impact of trends and the degree of popularity of vulnerability on the final evaluation, were analyzed. During the study, the following information was analyzed in the structured form: the vector of the general system of vulnerability evaluation, the threat type, the attack vector, the existence of the original code with patches, exploitation programs, and trends. The obtained result made it possible to determine the main independent characteristics, the existence of a correlation between the parameters, the order, and schemes of the relationships between the basic magnitudes that affect the final value of evaluation of vulnerability impact on a system. A dataset with formalized characteristics, as well as expert evaluation for further construction of a mathematical model, was generated. Analysis of various approaches and methods for machine learning for construction of a target model of dynamic risk evaluation was carried out: neuro-fuzzy logic, regression analysis algorithms, neuro-network modeling. A mathematical model of dynamic evaluation of vulnerability risk in software, based on the dynamics of spreading information about a vulnerability in open sources and a multidimensional model with an accuracy of 88.9 %, was developed. Using the obtained model makes it possible to reduce the analysis time from several hours to several minutes and to make a more effective decision regarding the establishment of the order of patch prioritization, to unify the actions of experts, to reduce the cost of managing information security risks

Rationale for the use of humats in aquaculture (a review)

Purpose. To prepare a justification for the use of sodium and potassium salts of humic and fulvic acids (humates) as substances with biologically active properties in fish feeds based on the analysis of sources of scientific and technical information and own experimental materials, Findings. A complex general characteristic of humic substances was provided, the mechanism of biologically active action of humates on living organisms was described. Examples of the use of humates in crop production, medicine, animal husbandry and aquaculture were given. The results of our own studies on the use of humates as a feed additive for valuable objects of aquaculture were presented. Prospects for the inclusion of micro-additives of sodium and potassium humates in the composition of fish feed in order to increase fish survival and digestibility of feed were outlined. Originality. To date, the introduction of humates into fish feed as micronutrients was experimental. The analysis of scientific sources and materials of own studies gave the basis for the conclusion about the need of complex detailed studying of mechanisms of effects of humates on fish. In particular, it is of interest to study the protective properties of humates from the accumulation of heavy metals in the body of fish for the use of micronutrients of these substances in fish feeds. Practical value. The use of humate feed additives in aquaculture will help to solve such urgent problems as the prevention of excessive losses of biological material of cultivated objects, reduction of feed costs, improvement of consumer characteristics of food products. Humates, as substances of natural origin with protective and immunomodulatory action, can become substitutes for some synthetic therapeutic and prophylactic drugs. Key words: aquaculture, humates, compound feed, feed additive, growth rate, survival, feed assimilation.

Effect of Thickness on Fluorescence of Some Clinical Dental Ceramics

Objectives: This study aimed to develop a new method for measurement of florescence and compare the fluorescence of some clinical dental ceramics in different thicknesses. Materials and Methods: Forty-eight samples of feldspathic (Vita VM9, A2), IPS e.max (Ivoclar HT, A2), zirconia (Korox Zircostar, A2) and Enamic (Vita A2) ceramics were used in this study in 0.5 and 1 mm thicknesses. The fluorescence of the samples was measured by using a developed technique. The results were analyzed by two-way ANOVA and Duncan post-hoc test. P<0.05 was considered significant. Results: Enamic, feldspathic and e.max ceramics had significantly different fluorescence in descending order (P=0.000). Fluorescence of ceramics increased with an increase in their thickness from 0.5 to 1 mm (P=0.007). Conclusion: The results confirmed the applicability of the presented method for measurement of fluorescence of dental ceramics. While, the thickness of restoration determines the concentration of the fluorescent agent, some additional technical information is required for justification of the observed trend in the studied ceramics.

“It’s Beyond You, But You’re A Part of It”: Mountaineering in the Southern Alps of Aotearoa New Zealand

<p>This thesis provides a phenomenological exploration of the lived experience of mountaineering in New Zealand. Based on fieldwork completed in the Southern Alps and Mount Ruapehu, it offers an analysis into how mountaineers construct the mountain environment through their climbing, while also being shaped in turn by the vital mountain. At the heart of this thesis is the movement of mountaineering. I argue that the experience of mountaineering cannot be divorced from our embodied sensory perception. Through climbing, mountaineers build a depth of embodied, living knowledge, making sense of technical information and strengthening their judgement to help them climb and manage the risks. That knowledge transforms the mountains for experienced mountaineers. Furthermore, I argue that the vibrant and potentially deadly fluxes of the mountains form their agency and thus the vitality that my participants sense. To climb in the mountains is therefore to enter into a reciprocal relationship with the vital mountain environment. The mountaineers ultimately become a reflection of the mountains in which they climb. This thesis comprises of a written thesis and immersive podcast recording, which has been attached.</p>