Email: [email protected] Abstract: In recent years, ideas about crypto currencies with interesting and new for today monetary principles becoming more and more popular. The crypto currencies’ met different attitude to it new for the world finances principals. There are different talks. Ones think that it may improve monetary system, others think that it is a toy money that may cause instability a...

This paper proposes a design for complementary community currencies for education communities to boost cooperation of the more advanced students with the less advanced ones. Its design follows two goals: motivating students to learn by doing extra homework (effort) and share knowledge with younger students (tutoring), and shifting the role of teachers towards a more supervisory, tutoring and dy...

A large set of daily FOREX time series is analyzed. The corresponding correlation matrices (CM) are constructed for USD, EUR and PLZ used as the base currencies. The triangle rule is interpreted as constraints reducing the number of independent returns. The CM spectrum is computed and compared with the cases of shuffled currencies and a fictitious random currency taken as a base currency. The M...

In this paper, we propose a system for the recognizing the paper currency. This is based on interesting features extractions like colors of paper currencies and correlation between images. Depending on the color of the currency is grouped into three groups-red, green and blue. In this system we are including the new currency notes of Rs.500 and Rs.2000.For Identifying the new currency we develo...

Cryptocurrencies are a type of digital currencies that are relying on cryptographic proofs for confirmation of transactions. Cryptocurrencies usually achieve a unique combination of three features: ensuring limited anonymity, independence from central authority and double spending attack protection. No other group of currencies, including fiat currencies, has this combination of features. We wi...

Digital currencies have emerged as a new fascinating phenomenon in the financial markets. Recent events on the most popular of the digital currencies--BitCoin--have risen crucial questions about behavior of its exchange rates and they offer a field to study dynamics of the market which consists practically only of speculative traders with no fundamentalists as there is no fundamental value to t...

In this paper, we present a method for predicting the value of virtual currencies used in virtual gaming environments that support multiple users, such as massively multiplayer online role-playing games (MMORPGs). Predicting virtual currency values in a virtual gaming environment has rarely been explored; it is difficult to apply real-world methods for predicting fluctuating currency values or ...

Úvod: Statistika ÚZIS k roku 2019 potvrzuje v České Republice 102 tisíc nemocných trpících demencí. Na 100 000 obyvatel připadá 582 osob s tímto onemocněním, což je 0,6 % populace. Článek mapuje vývoj demence od počátku po současnost.Cíl: Cílem publikace podat přehled o vývoji a současném stavu onemocnění ČR i zahraničí. Seznámit poukázat na demenci jako celosp...