Blockchain technology has received more and more attention from all walks of life and has also been sought after by the market and financial institutions. More and more financial institutions and Internet companies have begun to participate in the research of blockchain technology. The application scenarios are also constantly expanding, and the landing in the financial field is the focus of all social concerns. This article takes Agricultural Bank as an example, analyzes its current advantages and disadvantages in using blockchain technology, and proposes policy recommendations based on this to provide a reference for joint-stock commercial banks to better use blockchain technology to improve business performance. Based on the theoretical analysis, this article studies the use of blockchain technology by joint-stock commercial banks, and selects Agricultural Bank, which has a well-developed financial technology in joint-stock commercial banks, as a case study. From the operating background of the agricultural bank and the cross-border payment and settlement business, the background begins with the agricultural bank's own business practices in blockchain technology and the traditional cross-border business and the innovative development of agricultural bank's blockchain technology, and then the application of event analysis to the application effects of agricultural bank's blockchain technology analysis. This paper analyzes the SWOT-PEST of the agricultural bank's use of blockchain technology, combined with the theoretical analysis of blockchain technology in this article, comprehensively analyzes the agricultural bank's use of blockchain technology in four aspects: policy, economy, society, and technology. Strengths, weaknesses, opportunities, and challenges. Through analysis, we can have a comprehensive view on the application of blockchain technology by Agricultural Bank, and based on this, we can summarize the problems that Agricultural Bank may have in applying blockchain technology. Through the analysis of the blockchain, we can see that the growth rate of agricultural bank's net profit was higher in 2013 and 2014. Finally, the article puts forward suggestions for the development of agricultural bank under the blockchain technology.

: Secure remote user authentication is an authentication technique in which the remote server authorizes the identity of the user through an insecure communication network. Since then diverse remote user authentication schemes have been proposed, but each category has its advantages and disadvantages. Besides its strength and weakness, remote user authentication systems have a great impact on real-time applications such as E-health applications, telemedicine applications, Internet of Things (IoT), Cloud, and Multi-server applications. The implementation of the Tele Medicine Information System (TMIS) over public networks continues to disclose confidential information to unauthorized entities. Similarly, remote user authentication techniques have become essential in accelerating IoT as well. Security is a major concern in IoT because it allows secure access to remote services. Cloud computing services and a Multi-server environment share data among different end-users through the internet which also needs security as its paramount concern. Although intensive efforts were made in designing remote user authentication scheme for health care, IoT, Multi-server and cloud applications, the majority of these applications suffers either from security attacks or lagging of critical features. This paper presents an analytical and comprehensive survey of various remote user authentication techniques and categorizes them based on different applications. Furthermore, the state of art recent remote user authentication techniques have been compared, their advantages, key features, computational cost, storage cost, and communication cost are highlighted.

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: diatom alga Stauroneis neofossilis, parasitic fungus Anthracoidea arenariae, horsetail Equisetum hyemale, liverwort Harpanthus flotovianus, mosses Fissidens exilis and Rhizomnium punctatum, monocots Epipactis helleborine subsp. orbicularis, Himantoglossum calcaratum subsp. rumelicum and Schoenus nigricans and dicots Calluna vulgaris, Mahonia aquifolium and Willemetia stipitata subsp. albanica.

The potential re-use of red mud in the building and construction industry has been the subject of research of many scientists. The presented research is a contribution to the potential solution of this environmental issue through the synthesis of potential construction materials based on red mud. A promising way of recycling these secondary raw materials is the synthesis of alkali-activated binders or alkali activated materials. Alkali-activated materials or inorganic binders based on red mud are a new class of materials obtained by activation of inorganic precursors mainly constituted by silica, alumina and low content of calcium oxide. Since red mud contains radioactive elements like 226Ra and 232Th, this may be a problem for its further utilization. The content of naturally occurring radionuclides in manufactured material products with potential application in the building and construction industry is important from the standpoint of radiation protection. Gamma radiation of the primordial radionuclides, 40K and members of the uranium and thorium series, increases the external gamma dose rate. However, more and more precedence is being given to limiting the radiological dose originating from building materials on the population these days. The aim of this research was to investigate the possible influence of alkali activation-polymerization processes on the natural radioactivity of alkali activated materials synthesized by red mud (BOKSIT a. d. Milici, Zvornik, Bosnia and Herzegovina) and their structural properties. This research confirmed that during the polymerization process the natural radioactivity was reduced, and that the process of alkali activation of raw materials has an influence on natural radioactivity of synthesized materials.

A avaliação de comportamento de tanques acoplados é de grande interesse industrial, por normalmente estarem presentes em várias partes diversos processos, como por exemplo, em empresas petroquímicas, de celulose ou tratamento de água. Este trabalho busca modelar um sistema de tanques em série a partir das medições feitas em uma unidade piloto do curso de engenharia química da UFCG. O projeto é constituído por dois tanques em série, um reservatório de alimentação e uma bomba centrífuga que é responsável pela alimentação do primeiro tanque. Para a modelagem do sistema foram adotadas duas abordagens: a lei de Ohm e a primeira lei da termodinâmica aplicada a sistemas abertos. A partir da análise dos resultados, observa-se a clara aderência dos dados experimentais através de validação estatística.

<p style="text-align: justify;">The aim of this paper is to present a sufficiently adequate and accurate mathematical model of the breaking force of a solid wood panel. For that purpose, an experiment with thirteen repetitions was designed and done. The input sizes that varied on three levels are the density of the wood and the thickness of the solid wood panel. Since the central composite plan with thirteen repetitions of the experiment also includes four repetitions in the marginal areas, two more wood densities and two solid wood panel thicknesses were taken. The force was measured in such a way that the plate fibers were parallel to the bending direction of the plate. The measurements were made in the laboratory of the Technical Faculty in Bihać. The significance of the model coefficients was determined using the R software and the results were presented using the Design Expert software.</p>

BackgroundOrgan donation is a personal choice and many ethical, legal, medical, organisational and social factors are involved. It is possible to transplant some organs from live donors and others only from deceased donors. Nevertheless, the shortage of organs worldwide is a problem. Gender differences may cause decission and willingnes to organ donation. Methods A total of 60 informants (30 men and 30 women), born in Bosnia and Herzegovina and living in Sweden were available for follow-up. Data was collected by a questionnaire and statisticaly analysed according to the chi-square test, the D’Agostino-Pearson test for checking normality of continuous data distribution and, based on the distribution of results, Student’s t test or the Mann-Whitney test. Statistical significance was defined as p < 0.05.Results The result showed that significant differences between men and women was highest in the question about definition of transplantation (p<0.0001), information about organ donation (p<0.0001), knowledge about OD (p<0.0001), importance about OD (p<0.003), religious permitting to OD (p=0.0001), religious opposite to OD (p=0.0007), donate to a special person or not (p=0.0062), religion as factor to donate (p=0.0007). It was not better in question about having the donor card (p<0.0001). ConclusionsWomen were found to have more positive attitudes toward organ donation than men. Different socioeconomic factors, cultural beliefs, a higher level of religiousness, a higher level of information and knowledge about organ donation, as well as the ownership of donor cards, may result in a better perception of and willingness to participate organ donation. More knowledge of the religious understanding of organ donations and the reduction in prejudice among respondents would make the awareness and desire for organ donation even greater.

Structural health monitoring of the large infrastructural objects (high buildings, bridges, tunnels, dams, etc.) is in the domain of civil and geodetic engineers who use different methods and instruments for this task. Dam movement is influenced by various factors among which the most important are: thermal variations, hydrostatic pressure and dam ageing. This research investigates influence of thermal variations on dam crest movement by using statistical methods: autoregressive integrated moving average (ARIMA) and multiple linear regression. Dam crest movement data is obtained by using optical alignement method on the concrete gravity dam HP Salakovac. In the first part of this research correlation between dam crest movement and concrete temperature is determined, the second part deals with short term concrete temperature prediction and in the final part of this research previously fitted statistical models are used for dam movement prediction. The results showed that proposed model based on statistical methods can provide quality prediction of dam crest movement.

The relationship and effects between fiscal policy and economic growth have been an important theoretical and empirical research topic. The neoclassical models imply that the economic effects of changes in government spending will be neutralised by the impact of consequent changes in private spending. Endogenous growth models, on the other hand, imply that changes in the level and composition of taxation and government expenditure can affect economic growth. This aim of the paper is to explore the relationship and effects of fiscal policy and economic growth in 21 Central and Eastern European (CEE) countries over the period 2000-2018. The results, after controlling for various common and country-specific variables, imply that an increase in taxation, but not in non-productive expenditures, can positively affect economic growth. Our main findings are: (i) there is a significant and positive contemporaneous relationship between the general level of taxation and economic growth; and (ii) there is no relationship between the government final consumption and economic growth. Therefore, our results contributed to the scientific literature by providing empirical evidence on the contemporaneous relationship between the general government tax receipt and economic growth in CEE countries.