Modeling a multi-layered blockchain framework for digital services that governments can implement

2021 ◽  
pp. 1-13
Author(s):  
Fernando Rebollar ◽  
Rocío Aldeco-Perez ◽  
Marco A. Ramos

The general population increasingly uses digital services, meaning services which are delivered over the internet or an electronic network, and events such as pandemics have accelerated the need of using new digital services. Governments have also increased their number of digital services, however, these digital services still lack of sufficient information security, particularly integrity. Blockchain uses cryptographic techniques that allow decentralization and increase the integrity of the information it handles, but it still has disadvantages in terms of efficiency, making it incapable of implementing some digital services where a high rate of transactions are required. In order to increase its efficient, a multi-layer proposal based on blockchain is presented. It has four layers, where each layer specializes in a different type of information and uses properties of public blockchain and private blockchain. An statistical analysis is performed and the proposal is modeled showing that it maintains and even increases the integrity of the information while preserving the efficiency of transactions. Besides, the proposal can be flexible and adapt to different types of digital services. It also considers that voluntary nodes participate in the decentralization of information making it more secure, verifiable, transparent and reliable.

2018 ◽  
Vol 7 (2) ◽  
pp. 880
Author(s):  
G Manikandan ◽  
R Jeeva Dharani ◽  
R Maya

Information security is a key challenge in today’s information era where a huge volume of data is being generated on the internet as a result of the online transaction. This data needs to be protected from the unauthorized users on the web. Cryptography is used to ensure the confidentiality and integrity of data in the virtual world. The strength of the cryptographic algorithm relies on the complexity involved in retrieving the original content from the unintelligible information. The system proposed in this paper focuses on the use of a different mechanism to increase complexity involved in the cryptanalysis. Different cryptographic techniques are used to create a modified plain text and modified key. The newly generated key is used to encrypt the modified plaintext to generate the ciphertext. From the security analysis, it is evident that the time taken for cryptanalysis by the proposed scheme is more when compared with the existing systems.  


SPIEL ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 95-119
Author(s):  
Kathrin Fahlenbrach

The Internet has become a central place for protest communication: the organization of protest actions, the networking of potential activists, the dissemination of information, the calling for participation in protest actions, and the mobilization of support for protest concerns. All these and other practices have migrated from the analog to the digital sphere of publicity on the Internet. Thus the forms and strategies of public protest and activism have also changed and expanded. The article traces the special conditions of protest mobilization on the Internet. Against this background it examines different types of activist online videos with their specific audiovisual rhetorical strategies.


2021 ◽  
Vol 11 (15) ◽  
pp. 7063
Author(s):  
Esmaeel Rezaee ◽  
Ali Mohammad Saghiri ◽  
Agostino Forestiero

With the increasing growth of different types of data, search engines have become an essential tool on the Internet. Every day, billions of queries are run through few search engines with several privacy violations and monopoly problems. The blockchain, as a trending technology applied in various fields, including banking, IoT, education, etc., can be a beneficial alternative. Blockchain-based search engines, unlike monopolistic ones, do not have centralized controls. With a blockchain-based search system, no company can lay claims to user’s data or access search history and other related information. All these data will be encrypted and stored on a blockchain. Valuing users’ searches and paying them in return is another advantage of a blockchain-based search engine. Additionally, in smart environments, as a trending research field, blockchain-based search engines can provide context-aware and privacy-preserved search results. According to our research, few efforts have been made to develop blockchain use, which include studies generally in the early stages and few white papers. To the best of our knowledge, no research article has been published in this regard thus far. In this paper, a survey on blockchain-based search engines is provided. Additionally, we state that the blockchain is an essential paradigm for the search ecosystem by describing the advantages.


2001 ◽  
Vol 101 (1) ◽  
pp. 19-31 ◽  
Author(s):  
Gerard Goggin ◽  
Catherine Griff

Much of the present debate about content on the internet revolves around how to control the distribution of different sorts of harmful or undesirable material. Yet there are considerable issues about whether sufficient sorts of desired cultural content will be available, such as ‘national’, ‘Australian’ content. In traditional broadcasting, regulation has been devised to encourage or mandate different types of content, where it is believed that the market will not do so by itself. At present, such regulatory arrangements are under threat in television, as the Productivity Commission Broadcasting Inquiry final report has noted. But what of the future for certain types of content on the internet? Do we need specific regulation and policy to promote the availability of content on the internet? Or is such a project simply irrelevant in the context of gradual but inexorable media convergence? Is regulating for content just as quixotic and fraught with peril as regulating of content from a censorship perspective often appears to be? In this article, we consider the case of Australian content for broadband technologies, especially in relation to film and video, and make some preliminary observations on the promotion and regulation of internet content.


2009 ◽  
Vol 25 (01) ◽  
pp. 63-72 ◽  
Author(s):  
Victoria Serra-Sutton ◽  
Alejandro Allepuz ◽  
Mireia Espallargues ◽  
Gerold Labek ◽  
Joan M. V. Pons

Objectives:Registers have proven to be a valuable instrument in the evaluation of arthroplasty procedures and the performance of implants. The aim of this study was to describe the structure, functioning, and content of arthroplasty registers in Europe and other parts of the world.Methods:A search of technical reports was carried out through the Internet and in Medline/PubMed. The exhaustiveness of the information was confirmed using the links to Web pages of other registers and contacts with key people. Aims, methods in data collection and evaluation, internal structure and organization, participants, validity of the data, and other variables were assessed for each arthroplasty register using a qualitative content analysis of the texts.Results:Fifteen arthroplasty registers were identified which published sufficient information to conduct a comparative analysis. Eight additional registers were identified but no information was available on the Internet or in English. Most registers were initiatives of an orthopaedic society receiving governmental funding. Data were collected using standardized clinical forms and additional information from clinical-administrative datasets or other registers (mortality, implant costs, hip fractures). The main outcome measure of these registers is survival of the prostheses. Registers use the Internet and their annual reports as the main strategy for the dissemination and feed-back of their results.Conclusions:Scientific or professional societies and the public health administration should collaborate in the development of arthroplasty registers. To adequately assess the results of observational data information on the structure, the process of arthroplasty interventions and patients characteristics should be collected.


10.6036/10173 ◽  
2021 ◽  
Vol 96 (4) ◽  
pp. 335-337
Author(s):  
JUAN AURELIO TAMAYO ◽  
JAVIER GAMERO ROJAS ◽  
JUAN ANTONIO MARTINEZ ROMAN ◽  
MARIA DE LORETO DELGADO GONZALEZ

A measure is proposed to estimate the degree of digital transformation of a social system that could be applied to different units of analysis: the organization, the industrial sector or society. The measure contemplates the existence of classic (non-digital) social systems, a transition stage and the transformation towards the digital social system. An estimate of the percentage of people who have made purchases over the Internet has been used to estimate the degree of digital transformation of different territories, regions and countries included in the INE and Eurostat statistics. The initially proposed function can serve as a basis to include panels of indicators or multiple parameters that diagnose other relevant aspects of society and the economy. In general, the measure could be useful to assess the transition and evolution of different types of systems.


1986 ◽  
Vol 6 (9) ◽  
pp. 3262-3267
Author(s):  
D D Chang ◽  
D A Clayton

Transcription of the heavy strand of mouse mitochondrial DNA starts from two closely spaced, distinct sites located in the displacement loop region of the genome. We report here an analysis of regulatory sequences required for faithful transcription from these two sites. Data obtained from in vitro assays demonstrated that a 51-base-pair region, encompassing nucleotides -40 to +11 of the downstream start site, contains sufficient information for accurate transcription from both start sites. Deletion of the 3' flanking sequences, including one or both start sites to -17, resulted in the initiation of transcription by the mitochondrial RNA polymerase from alternative sites within vector DNA sequences. This feature places the mouse heavy-strand promoter uniquely among other known mitochondrial promoters, all of which absolutely require cognate start sites for transcription. Comparison of the heavy-strand promoter with those of other vertebrate mitochondrial DNAs revealed a remarkably high rate of sequence divergence among species.


Author(s):  
Peter McCormick

AbstractGiven the visibility and obvious importance of judicial power in the age of the Charter, it is important to develop the conceptual vocabulary for desribing and assessing this power. One such concept that has been applied to the study of appeal courts in the United States and Great Britain is “party capability”, a theory which suggests that different types of litigant will enjoy different levels of success as both appellant and respondent. Using a data base derived from the reported decisions of the provincial courts of appeal for the second and seventh year of each decade since the 1920s, this article applies party capability theory to the performance of the highest courts of the ten provinces; comparisons are attempted across regions and across time periods, as well as with the findings of similar studies of American and British courts.


2002 ◽  
Vol 33 (4) ◽  
pp. 39-47 ◽  
Author(s):  
Steve D. Giffin

A taxonomy of Internet applications has been created to describe the use of the Internet for project management communication. It is based on the technological characteristics of Internet applications, the requirements of project management communication, and the organizational issues associated with using Internet applications. Its dimensions are the sender/receiver synchronization and the relationship between the number of senders and receivers. The taxonomy is populated with six Internet applications that are used commonly in project management communication. The taxonomy is presented as an aid to understanding the capabilities and limitations of Internet applications for different types of project management communication.


Author(s):  
Mykola Zhelezniak

The article is dedicated to the 20th anniversary of beginning the Encyclopedia of Modern Ukraine (EMU), the first volume of which was published in 2001. On this occasion, scholars of NASU Institute of Encyclopedic Research conducted a sociological study of people that are being used the online version of the EMU. In this article, the author presents the results of this study processed by methods of statistical analysis, and offers some discussions based on the results. Acquired information is important for the further progression of the EMU on the Internet, because it allows getting feedback from encyclopedia users.


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