Advantages and disadvantages of blockchain-based electronic voting systems with homomorphic encryption

The work examines the phenomenon of electronic voting and advantages and disadvantages of such systems. Particular attention is paid to the electronic voting systems that use block chain technologies in their scheme. The purpose of the publication is to create a theoretical model of the electronic voting system, which will include all stages of the elections. In this work, a study and analysis of the existing electronic voting systems were carried out, the requirements for the creation of electronic voting systems were substantiated. Possible attacks on both conventional electronic voting systems and options using the block chain were given. The advantages of the work include theoretical and practical models, comparison and study of possible attacks on various types of electronic voting systems.

The new Scandinavian zoomorphic amulet with runic inscription, through the lense of ancient germanic mythological system of the world

The new rhombus-shaped cast amulet of the 10th century, made in the Borre style by means of the openwork metalworking technique, is a unique example of the Scandinavian jewelry tradition. The amulet originated from the region of the middle Dniester. The amulet and graffito are unique and they have no direct known analogies. This article is devoted to the study of semiotics and semantics of a zoomorphic pendant and elements of its image. The study carried out a structural-semantic analysis of the composition and individual elements of ornament through the paradigm of cosmological and cosmogonic representations of the ancient Germans. The work used the comparative method as well as a wide range of archaeological and literary sources. The picture stones and runic stones, Hogback stones, objects of material culture of the ancient Germans, results of comprehensive archaeological research, Old Norse songs about the gods and heroes of the “Younger Edda”, a set of Scandinavian sagas, Icelandic Viking sagas about Old Rus’ and materials from written sources of the XI– XIII Centuries were examined in detail and compared. The novelty of the research lies not only in the uniqueness of the new early medieval Scandinavian amulet, but also in the comparison and study of the object through the lens of the literary heritage of German- Scandinavian mythology. This approach was first applied in the detailed study of the “Gnezdovo-type” pendants. The methodological approach of the research and the historical-typological and semantic-semiotic analysis led to a scientific interpretation of the depicted story of the amulet within the context of the ancient Germanic mythological system and cosmogony.

COMPATIBILITY OF VISIBILITY AND HARMONY OF PICTOGRAM -FOCUS ON RESTROOM MARK-

In recent years, there are various design signs to guide people. In the signature "pictogram" which enables guidance without using words is often used. However, when looking into the building, the signature using the pictogram is given its own design to match with the indoor space, and signs which are difficult for the user to understand are distributed. It can be thought that these pictograms are being redesigned to adapt to architecture. Therefore, the research aimed for a sign plan which is easy for users to understand, and thought that standard pictograms harmonizing with various buildings are necessary. Visibility is important for pictograms, and in this research, the objective is to study the conditions of pictograms that compatibility of visibility and harmony.For reference to the research conducted for each generation, The author conducted an experiment using the pictogram of the Japanese Industrial Standard toilet mark, which had high recognition among all generations. The author divide the pictograms into pictograms for men and women whereby the existing designs filled with color and new designs with only contour lines are more harmonious using textures of concrete, brick, white wall, wood pictograms were synthesized. The author compared with that pictograms . As a result, The author received responses that the design of only the outline of the pictogram for men and the pictogram for women is more harmonious in all scenes. Among them, both male pictograms and female pictograms showed significant differences in the two scenes, and a significant trend was observed in the remaining two scenes. The author conducted experiments on the width of the contour line using 4 scenes images same as comparison and study the pictograms of the line widths with the greatest thickness. As a result, there was not much difference in the width of the width of the contour line of the pictogram in all scenes of male pictograms and female pictograms. The author discussed the effect on visibility and harmony by shape and color as future prospect.

Data Collection as Disruption: Insights from a Longitudinal Study of Young Adulthood

Research disrupts the social world, often by making respondents aware that they are being observed or by instigating reflection upon particular aspects of life via the very act of asking questions. Building on insights from the first Hawthorne studies, reflexive ethnographers, and methodologists concerned with panel conditioning, we draw on six years of research within a community in southern Malawi to introduce a conceptual framework for theorizing disruption in observational research. We present a series of poignant-yet-typical tales from the field and two additional tools—the refresher-sample-as-comparison and study-focused ethnography—for measuring disruption empirically in a longitudinal study. We find evidence of study effects in many domains of life that relate directly to our scope of inquiry (i.e., union formation, fertility) and in some that extend beyond it (i.e., health). Moreover, some study effects were already known and discussed in the broader community, which was also affected by our research in unintended ways. We conclude that the assumption of non-interactivity in observational research is shaky at best, urging data-gatherers and users to think more seriously about the role of disruption in their work.

Manufacture and Mechanical Behavior of Green Polymeric Composite Reinforced with Hydrated Cotton Fiber

Composites using natural fibers as reinforcement and biodegradable polymers as matrix are considered environmentally friendly materials. This paper seeks the mechanical and morphological characterization of a biocomposite of polyurethane (PU) derived from a blend of vegetable oils doped with aluminatrihydrate (ATH) and reinforced with hydrated cotton fiber fabric (HCF). The comparison and study were performed based on the properties of the: (i) pure PU; (ii) PU doped with ATH containing 30% of the final mass (PU+30%ATH); (iii) composite of PU reinforced with 7 layers of cotton fiber fabric (PU+7CF); (iv) composite of PU+30%ATH reinforced with 7 layers of CF (PU+30%ATH+7CF); (v) composite of PU+30%ATH reinforced with 7 layers of hydrated cotton fiber fabric (PU+30%ATH+7HCF). The mechanical properties obtained according to the tensile test for the composite PU+30%ATH+CF with fibers oriented at 0° showed a significant increment in tensile strength (60 MPa) and the modulus of elasticity (4.7 GPa) when compared to pure PU (40 MPa) and (1.7 GPa) respectively. PU+30%ATH also presented a rising tensile strength (31 MPa) and Young modulus (2.6 GPa). For the composite with addition of water, results presented a significant decrease in strength (31.3 MPa) and stiffness (0.9 GPa) than the composite with no water. Electron microscopy (SEM) analyses exhibited that the samples with addition of water showed the presence of large amounts of pores and the lower interaction between matrix and fiber. These results may explain the lower mechanical properties of this material. DOI: http://dx.doi.org/10.30609/JETI.2019-7576

К вопросу о понятии «межрегиональные взаимодействия» в пространственной экономике

В статье исследуется проблема использования понятий «межрегиональные взаимодействия», «межрегиональное сотрудничество», «межрегиональные связи» и «межрегиональные отношения». С точки зрения автора разграничение вышеуказанных понятий, придание их соотношениям определенного схематического и структурного вида, определение их иерархичности, взаимосвязи и взаимовлияния позволит в дальнейшем облегчить описание в экономических дисциплинах определенных процессов, протекающих в жизнедеятельности регионов в рамках их сотрудничества с другими субъектами. The article analyzes the existing formulations of the concept “interregional interaction”. Currently, the relevance of inter-regional interactions studies has received a new impulse, but until today there is no definite and clear formulation of “inter-regional interactions” concept. Due to it, there is a problem of law enforcement of this definition in conducting researches with-in the frame of interregional relationships. As a result, in this article, the invested semantic loads in the phrase “interregional interaction”, the consistency and accuracy of this definition usage in the study of socio-economic characteristics in the frame of interregional interaction are explored. In fact, at this stage of the researches, different authors have different points of view and different approaches in the usage of such concepts as inter-regional cooperation, interregional relations and interregional contacts. In that context, appears the question: is it correct men-tioned above formulations regard as synonyms? Are they de-pendent or independent of each other, consistent or inconsistent with common features and properties? Do they refer to one cate-gory or each of these concepts has its own distinctive features and carries out a separate semantic load? What allows us to say that these concepts are different and should not be used in any way as interchangeable definitions? As a result of the studies, comparison and study of various interpretations and approaches to the con-cept of “interregional interaction”, the author’s view is introduced into the relationship and interrela-tion of interregional interaction with the concepts of “interregional cooperation”, “interregional con-tacts” and “interregional relations”. Their conditionality and validity of the application in the descrip-tion of certain socio-economic relations between regions are considered. From the point of view of the author, the distinction between the above concepts, giving them a certain schematic and structural rela-tionship, determining their hierarchy and interaction will further facilitate the understanding of certain processes occurring in the daily and future life of the regions as part of their cooperation. Based on the review and analysis, the author introduces the wording of the notion “interregional interaction”.