Efficient Anonymous and Non-Repudiation E-Payment Protocol

Author(s):  
Sattar J. Aboud

There are many proposals which offer anonymous and non-repudiation e-payment protocols. But they have the drawbacks that the anonymity can be misused fraudulently to perform a perfect crime. Currently, the hot research concentrates on the accepting of e-payment protocols where the anonymity of the coins is cancelable via a trusted authority in the case of criminal entities. In the chapter the author suggests an efficient protocol for e-payment schemes that offers a good level of security with appreciate to its efficiency. The proposed protocol prevents the blind office and the bank from impersonating an entity, so that the entity could not repudiate it when the entity misused a coin. Another benefit is that it is constructed from efficient cryptography schemes so that its security can simply be analyzed. The strength of this scheme is in its easiness. So, the author claims that the suggested protocol is more efficient than the existing schemes, since it allows to both a blind office and a bank to impersonate an entity to find and to spend a coin without to be noticed. It might cause a repudiation difficulty where the entity can repudiate his bad activities by proposing that both the bank and the blind office acted inaccurately. Other relevant issues related to the new protocol will be discussed in the section of the security of the scheme.

2020 ◽  
Vol 4 (3) ◽  
pp. 499
Author(s):  
Dewi Dewi ◽  
Zariul Antosa

The School Literacy Movement (GLS) is a policy issued by the government to overcome the problem of education and improve the basic literacy abilities of students. SDN 6 Pekanbaru is one of the schools that has implemented GLS at the familiarization stage well. Therefore, this study aims to determine the basic literacy skills of students in low classes through the implementation of GLS in SDN 6 Pekanbaru. This study used qualitative research conducted through observation and interviews about the implementation of GLS and students’ basic literacy skills with teachers and students in classes I and II. The results showed that GLS was able to improve the phonetic abilities of students by achieving a very good level of the ability to read and pronounce combinations of letters. The increase of students' vocabulary comprehension ability was seen where most students were able to know the meaning of words and retell the contents of books with theme daily activities. From the research findings, it was concluded that GLS improved the basic literacy ability of low-class students at SDN 6 Pekanbaru.


2017 ◽  
pp. 122-127
Author(s):  
Thi Luu Nguyen ◽  
Thi Tan Nguyen

Objectives: To assess the effect of electronic acupuncture combined with “Tam ty thang” remedy in the treatment of rheumatoid arthritis by wind-cold-damp. Materials and methods: prospective study, comparing before and after treatment, including 43 patients who were diagnosed with rheumatoid arthritis by wind-cold-damp according to traditional medicine. Results: good level occupied 69,8%, and fair good level occupied 30,2%.The improved motor function accounted for 95.3%, to relieve pain up to 95,3%, reducing inflammation of VSS in 1 hour at the moment No 31,65, N28 17,88. The improvement in the level of activity of the hand reached 48,8% for good level. Conclusions: The method of electronic acupuncture combined with “Tam ty thang” remedy have a good effect in the treatment of rheumatoid arthritis by wind-cold-damp and it didn’t cause significantly side effects in clinic. Key words: rheumatoid arthritis, electronic acupuncture, “Tam ty thang” remedy


2016 ◽  
pp. 33-38
Author(s):  
Thi Ngoc Dung Thai ◽  
Thi Tan Nguyen

Background: Low back pain by osteoarthristis is one of the most common diseases in the world as well as in Vietnam, estimated 70-85% people in the world have low back pain sometime in their lives. Obiectives: To evaluate the effects of embedding therapy and electronic acupuncture combined with “Doc hoat tang ky sinh” remedy in the treatment of low back pain by spondylosis. Materials and methods: 72 patients diagnosed of low back pain by spondylosis, were examined and treated at Phu Yen Traditional Medicine Hospital, divided equally into 2 groups (group 1 and group 2). Results: In group 1: Effective treatment at good and fair good level accounted for 41.7% and 41.7%. In group 2: Good level occupied 33.3% and fair good level occupied 55.6%. Conclusion: The ratios of good and fair good in 2 groups were equal (p >0.05) Key words: Low back pain, spondylosis, embedding therapy, electronic acupuncture


2020 ◽  
pp. 25-31
Author(s):  
N. N. Khomutova ◽  
K. A. Vizner ◽  
S. A. Makhortova ◽  
S. N. Chudievich

The problem of the discrimination of people with disabilities remains being an urgent social problem. Misunderstanding of the meaning of this problem by others results in a situation when invalid’s level of life cannot be equal to a healthy person’s level of life. This article raises the issue of ableism in order to explore the idea of barrier-free environment integration. The results of a social survey are demonstrating a good level of respondent’s awareness concerning this problem and their will to participate in a discussion and taking of measures for the integration of a barrier-free environment with the intention to raise the invalid’s level of life.


2021 ◽  
Vol 13 (4) ◽  
pp. 1805
Author(s):  
Baolin Qiu ◽  
Dongkun Luo

China entered a new era, and the construction of an ecological civilization and green development has been raised to a new strategic height. As the lifeblood of the national economy, industrial parks significantly contribute to economic growth. However, they also generate significant pollution, damaging the ecological environment. It is urgent to ecologically transform traditional industrial parks. This requires identifying methods to correctly and objectively evaluate the ecological level of industrial parks, and provide ecological construction proposals for the government and industrial parks. In this study, the comprehensive evaluation weight was determined by introducing a variation coefficient and an Attribute Hierarchy Model (AHM). The ecological level of four representative eco-industrial parks was then quantitatively evaluated using a grey multi-level evaluation method. The ecological construction level of the four industrial parks was as follows. The Tianjin Economic-Technological Development Area (TEDA) was rated at a “very good” level; and the Suzhou industrial park, Dalian economic and technological development zone, and Fushun mining group were rated at a “good” level. Six dimensions were studied. Of these, policy management had the highest weight, and the total weight of policy management and economic development approached 50%. The result shows that industrial parks can attract innovative enterprises and talents through the policy guidance of local government to improve the level of green innovation technology and cleaner production technology. Then, the ecological level of the industrial parks will be improved. This study enriched the theory and practice of ecological evaluation of industrial parks and provided a reference for the ecological construction of traditional industrial parks.


Author(s):  
Benito Yáñez-Araque ◽  
Sagrario Gómez-Cantarino ◽  
Santiago Gutiérrez-Broncano ◽  
Víctor-Raúl López-Ruiz

The evaluation of the work performance of health professionals has focused the interest of scientific research in recent decades as a basis for improving the quality of health services. The global COVID-19 pandemic has pushed countries’ health systems to the limit and had previously unknown consequences on the job performance of health professionals. In this context, what are the determinants of performance? There are numerous studies that link job performance with other variables that directly affect it, such as leadership, job satisfaction, organizational commitment, and work environment. However, there are no studies that jointly relate all these variables, and even less in the field of health. The main objective of this work is to analyse how these variables are configured together to generate a good level of performance of health professionals during the times of COVID-19. To do this, a fuzzy set qualitative comparative analysis (fsQCA) is carried out, an appropriate method that will allow finding the joint causal effects of key variables in human resources to ensure a good level of job performance in health organizations. The study reveals that leadership and commitment are the two key drivers of performance. The data confirm that the “recipe” to achieve a good level of performance consists of the combination of leadership, commitment, and a good work environment. Additionally, in the case of less satisfied workers, linking leadership and commitment is a sufficient condition.


Mathematics ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 1147
Author(s):  
Natalia Aizenberg ◽  
Nikolai Voropai

In this paper, we discuss the demand side management (DSM) problem: how to incentivize a consumer to equalize the load during the day through price-dependent demand. Traditionally, the retail market offers several electricity payment schemes. A scheme is effective when the different tariffs satisfy different consumers. At the same time, the existing and generally accepted retail pricing schemes can lead to an "adverse selection" problem when all consumers choose the same price, thereby, reducing the possible general welfare. We propose an optimal design of pricing mechanisms, taking into account the interests of the electricity supplier and different types of consumers. The results of our work are that the optimal mechanism is implemented simultaneously for several periods, including the case when the ratio of types of consumers in periods changes. In addition, the mechanism proposed by us, in contrast to the studies of other researchers, provides an equilibrium close to the socially optimal maximum. We describe the implementation algorithm of the mechanism and provide examples of its action in the electric power system with different types and numbers of consumers.


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