scholarly journals Permissioned vs. Permissionless Blockchain: How and Why There Is Only One Right Choice

2021 ◽  
pp. 95-106
Author(s):  
Siamak Solat ◽  
◽  
Philippe Calvez ◽  
Farid Naït-Abdesselam

The blockchain structure can be utilized in an efficient way to verify and ensure the integrity of the data and prevent historical transactions from tampering, such that if one block is altered, then the rest of next blocks are no longer valid. However, it is possible to re-calculate all the next blocks in a closed and permissioned network, such that all altered blocks will become valid again. In other words, only chaining blocks to each other, based on the hash of the previous one, cannot ensure the integrity and the security of the data and protect transactions against tampering. In this paper, we motivate why permissionless blockchain in an open network should be considered as the only acceptable type of blockchain and show that permissioned blockchain and closed network makes chaining transactions (i.e. blockchain) as an unhelpful structure. Of course, this never means that we ignore the existing problems in permissionless blockchains (such as, scalability of the network and transaction throughput), but also, we argue that permissioned blockchain cannot be an acceptable solution for those problems, where chaining transactions will no longer be meaningful. In other words, in a closed network, we no longer need to chain transactions. Although, this is a central issue and has been addressed in recent years, we are trying to bring new elements and an enriched point of view.

Author(s):  
Angela Dranishnikova

In the article, the author reflects the existing problems of the fight against corruption in the Russian Federation. He focuses on the opacity of the work of state bodies, leading to an increase in bribery and corruption. The topic we have chosen is socially exciting in our days, since its significance is growing on a large scale at all levels of the investigated aspect of our modern life. Democratic institutions are being jeopardized, the difference in the position of social strata of society in society’s access to material goods is growing, and the state of society is suffering from the moral point of view, citizens are losing confidence in the government, and in the top officials of the state.


2021 ◽  
Vol 3 (3) ◽  
pp. 96-123
Author(s):  
L.V. Shchennikova

Introduction: the article deals with the methodological problem of the meaning of the goal of civil law research. The author analyzes the dissertation abstracts from the point of view of goal setting, which were completed in different periods of the development of Russian civil law science, identifies the qualitative characteristics of the stages, and proves the connection of the achieved results with the researcher’s knowledge of the methodological methods of goal setting. Purpose: to show the value of goal setting in scientific research in general and in civil research in particular; to consider the relationship of goal setting with the achievement of specific scientific results on the examples of dissertations defended in the specialty 12.00.03; to justify the need to set as goals the fundamental problems associated with the identification of patterns of development of relations that are part of the subject of civil law regulation and the creation of effective mechanisms that mediate them. Methods: system-structural, system-functional, generalization, abstraction, analogy, logical, statistical, classification, legal modeling, comparative legal, forecasting, formal legal, historical. Results: civil methodology should take into account the importance of the goal in the organization of scientific work. Only a competent possession of goal setting skills can ultimately ensure the creation of scientifically-based mechanisms for effective impact of civil law norms on regulated social relations. Conclusions: 1) any science, including the science of civil law, is not only designed to study and describe existing problems, including legislative, doctrinal, and law enforcement. Research, in order to meet the criterion of scientific character, must attempt to identify the laws of development, both regulated relations and mechanisms that mediate them; 2) the significance of the goal in the development of science has been proven by outstanding philosophers. In addition, the very definition of science indicates that goal setting is one of its essential characteristics; 3) the analysis of the author’s abstracts of leading Russian tsivilists showed how the skilful setting of research goals helped to achieve them consistently, as well as to create a high-quality categorical apparatus of civil law science; 4) the analysis of modern dissertations showed that not all young researchers see the value of goal-setting and this methodological disadvantage is important for the author to eliminate.


Author(s):  
Fayzulla Tolipov ◽  

The article describes the specifics of the system of financing of small business and entrepreneurship in the recent history of Uzbekistan, the funds allocated for small business and entrepreneurship, the activities of commercial banks and the financial and banking system, some problems in the field. It also noted that since the early days of independence, a unique business environment has been created in the country to support the interests of entrepreneurs in the framework of development programs in this area, data on the role of financial mechanisms in the further development of small business and entrepreneurship in the country have been studied from a historical point of view. The article highlights the positive situation in the country's macro and microeconomic indicators, ie the active participation of banks in attracting local entrepreneurs and foreign investment, the existing problems in this area and the measures taken to address them. It analyzes the important factors and strategies of banks' participation in the development of business and entrepreneurship.


2012 ◽  
pp. 9-29
Author(s):  
Michele Bertani

In this essay the author analyzes contemporary migration, a central issue in the globalized world, through a particular sociological point of view: the social capital. The author presents a review of the scientific results of various scholars, who for various reasons have been dealing with migration studies, using the concept of social capital as a tool for innovative analysis. Starting from this literature, the author initially introduces issues and topics related to migration studies, with the aim to formulate a classification that takes into account the different emerging approaches.


1982 ◽  
Vol 14 (03) ◽  
pp. 654-671 ◽  
Author(s):  
T. C. Brown ◽  
P. K. Pollett

We consider single-class Markovian queueing networks with state-dependent service rates (the immigration processes of Whittle (1968)). The distance of customer flows from Poisson processes is estimated in both the open and closed cases. The bounds on distances lead to simple criteria for good Poisson approximations. Using the bounds, we give an asymptotic, closed network version of the ‘loop criterion' of Melamed (1979) for an open network. Approximation of two or more flows by independent Poisson processes is also studied.


2019 ◽  
Vol 15 (1) ◽  
pp. 130-134
Author(s):  
O. V. Tsygankova ◽  
T. I. Batluk ◽  
L. D. Latyntseva ◽  
D. Y. Platonov ◽  
N. M. Akhmedzhanov

The current state of the Russian and foreign regulatory framework for off-label prescription of medicines is presented in the article. The existing problems of this specific drug therapy and possible solutions are described. Unfortunately, there are some gaps in the Russian legislation regarding the off-label medication use. Based on the clinical reality, in some cases, the “off-label” drugs prescription can be justified by the clinical condition of the patient, the lack of alternative approved drugs, and the availability of published scientific data that create the prerequisites for the effectiveness of this approach. When off-label drug prescribing as a forced measure, the doctor must provide a rationale for this prescription in the medical documentation, the conclusion of the consultation (with the participation of relevant specialists and the clinical pharmacologist) or the medical commission (with the participation of the administration representative), and the written informed consent of the patient or his legal representative. This information should be actively communicated to doctors in order to increase their legal literacy and prevent possible negative and legal consequences.


Disposal of vitrified high-activity waste in properly selected deep geological formations is the option that absorbs most of present R&D and appears as an acceptable solution from a technical point of view. As regards safety, disposal projects under development appear to satisfy present radiological protection criteria, even if much uncertainty exists in both models and input data. Other disposal concepts are, however, also being studied, with more limited effort. Their quantification in terms of costs and benefits is therefore rather uncertain at present. Among them the following are treated briefly: disposal in deep oceanic sediments, actinide separation and recycling, and extraterrestrial disposal. Taking into account the cost and development time required to bring these options to industrial operation, they should not be considered as alternatives to present projects of waste disposal, but rather as scientific research that may lead to industrial realization in a more mature nuclear age, in which the balance of costs, risks and benefits will be different. Long-term storage of either spent fuel or vitrified waste, although not an alternative strategy of disposal, is an option that has considerable effects on waste management and the fuel cycle in general. The three scenarios (disposal of vitrified waste in geological formations, extended storage, advanced disposal options) complement each other very well and none of them should be pursued at the sacrifice of the others.


1982 ◽  
Vol 14 (3) ◽  
pp. 654-671 ◽  
Author(s):  
T. C. Brown ◽  
P. K. Pollett

We consider single-class Markovian queueing networks with state-dependent service rates (the immigration processes of Whittle (1968)). The distance of customer flows from Poisson processes is estimated in both the open and closed cases. The bounds on distances lead to simple criteria for good Poisson approximations. Using the bounds, we give an asymptotic, closed network version of the ‘loop criterion' of Melamed (1979) for an open network. Approximation of two or more flows by independent Poisson processes is also studied.


2019 ◽  
Vol 7 (3) ◽  
pp. 516-520
Author(s):  
Petr M. Morkhat ◽  
Igor V. Ponkin ◽  
Marina V. Markhgeym ◽  
Vladimir K. Botnev ◽  
Aidyn O. Turganbayev

Purpose of Study: The present study was designed to study possibilities, conditions, grounds and limitations regarding the use of technologies and units of artificial intelligence in public administration. Determinants of the need to use such technologies in public administration were also considered. In this study, directions of realizable engagement which is already implemented, as well as directions of the possible use of artificial intelligence units in the future for public administration were investigated to ensure the functioning of system of state executive bodies. Methodology: The present research carried out based on the application of research methods such as system analysis, synthesis, and classification. Using these research methods, the concepts of describing conditions, possibilities, modes and functional-target load of using technologies and units of artificial intelligence in public administration, as well as limitations of its application in public administration were developed. Results: It was found that the use of artificial intelligence by the state for performing its various own tasks is highly relevant as it might lead to finding many positive approbations. However, despite the fact that technologies and artificial intelligence units have been developed for a relatively long time, and some of them are already widely used, it is still impossible to talk about the integrated, fully tested and properly regulated implementation of this kind of technology and units for management, therefore, it is suggested to further investigate on this issue from a theoretical (prognostic) point of view, taking into account potential directions and possibilities regarding    the use of such technology and units. Implications/Applications: The use of technologies and units of artificial intelligence does not necessarily take into account as a panacea for solving the problems and may not lead to solving some systemic problems in public administration, but, on the contrary, may even aggravate some existing problems in public administration and contribute to the emergence of new problems and risks.


2020 ◽  
pp. 283-290
Author(s):  
M. Dumchykov ◽  
V. Pakhomov ◽  
O. Bondarenko

The article deals with the main forensic issues in the fight against cybercrime, as a new threat to modern society. The statistics of cybercrime and the relevance of this problem in Ukraine and other countries of the world are given. The problems of applying the concept of computer crime and the need to amend the legal framework, as well as attracting the help of international organizations, companies and specialists in the field of information technology is examined. It analyzes the rapid increase in cybercrime in modern conditions. The interpretation of concepts related to crimes in cyberspace, both in national and international legislation, is considered. When considering the problem of combating cybercrime, the works of such scientists as L.P. Zverianskaia, M.A. Vinokurova, A.P. Kireenko, S.V. Chuprova. The main problems that arise in the study of such crimes are identified: – the lack of an agreed theoretical base, and as a result, legislative regulation suffers; – lack of specialists in the field of information technology in law enforcement agencies; Криміналістика і судова експертиза. Випуск 65 290 The issues of prevention and combating cybercrime, and the solution of these problems are investigated. The main measures to combat and minimize existing problems, namely: – technical and theoretical improvement: the need to justify a single concept of cyberspace in all national legislation, from the point of view of forensics, which will allow a new legislative regulation of this area; – new approaches based on a wider use of the achievements of scientific and technological progress that will help to successfully identify and investigate such crimes; – the need to provide law enforcement with highly qualified specialists in the field of information technology; – attracting international support in the form of international organizations, companies and specialists.


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