Search results for "virtu"
showing 10 items of 1987 documents
Bitcoin tiesiskais statuss ES kopējās PVN sistēmas ietvaros
2015
Tehniskās attīstības rezultātā mums ir iespēja izvēlēties izdevīgākus, ērtākus un drošākus norēķinu veidus. Tomēr esošais normatīvais regulējums nespēj aptvert visus jaunus institūtus. Līdz ar to daudzās jomās, tostarp nodokļu, rodas neskaidrības par tiesību normu piemērošanu. Samērā jauna virtuālā valūta bitcoin var tikt izmantota darījumos kā maksāšanas līdzeklis. Tā nodrošina iespēju veikt transakcijas ātri un izdevīgi, vienlaicīgi pasargājot savas sistēmas lietotājus no konfidenciālās informācijas izpaušanas trešajām personām. Diemžēl ES līmeni nav specifiska regulējuma attiecībā uz virtuālajām valūtām. Tajā pašā laikā bitcoin tiesiskais statuss ir izšķirošs PVN piemērošanā darījumiem, …
Virtuālās realitātes mobilās lietotnes izstrāde kāršu spēļu apmācībai
2017
Jaunās paaudzes viedtālruņi nodrošina plašas aparatūras un programmatūras iespējas, kas ļauj jaunajām tehnoloģijām izmantot viedtālruņu potenciālu. Galvenais iemesls, kādēļ spēlētāji zaudē kāršu spēlē blackjack, ir zināšanu trūkums par spēli. Balstoties uz statistikas datiem, 65% populācijas ietilpst vizuālās apmācības kategorijā, kas nozīmē, ka virtuālā realitāte kāršu spēļu apmācībai būtu piemērota plašai auditorijai ar vizuālās apmācības stilu. Maģistra darba mērķis ir izstrādāt virtuālās realitātes mobilo lietotni kāršu spēles apmācībai, par pamatu ņemot kāršu spēli blackjack. Gala rezultātā tika izstrādāts mobilās lietotnes prototips, kas tika analizēts, izmantojot lietotāju pieredzes …
Initial Coin Offering (ICO) as a Fundraising Strategy : A Multiple Case Study on Success Factors
2019
Cryptocurrencies and Initial Coin Offerings (ICO) are some of the more prominent examples of currently used blockchain technology applications. Especially software startups have leveraged ICOs to gain funding early on in their lifecycles, going on to develop and create new blockchain based applications. Recently, larger companies such as Facebook have also begun to show interest in cryptocurrency, although thus far not for funding purposes in the form of ICOs. In this paper, we investigate factors that positively affect the abilities of companies to meet their fundraising goals via ICOs. We first identify a set of factors from extant literature and then seek to further confirm the effect of…
A Survey on Technologies Which Make Bitcoin Greener or More Justified
2022
According to recent estimates, one bitcoin transaction consumes as much energy as 1.5 million Visa transactions. Why is bitcoin using so much energy? Most of the energy is used during the bitcoin mining process, which serves at least two significant purposes: a) distributing new cryptocurrency coins to the cryptoeconomy and b) securing the Bitcoin blockchain ledger. In reality, the comparison of bitcoin transactions to Visa transactions is not that simple. The amount of transactions in the Bitcoin network is not directly connected to the amount of bitcoin mining power nor the energy consumption of those mining devices; for example, it is possible to multiply the number of bitcoin transactio…
Espanjankielisen blogosfäärin hyödyntäminen informaalissa kielenoppimisessa
2017
Internet- ja digiaika ovat luoneet informaalin kielenoppimisen tueksi lukuisia uusia mahdollisuuksia. Blogosfääri on yksi näistä. Tässä kirjoituksessa pohditaan espanjankielisen blogosfäärin hyödyntämistä espanjan kielen oppimisessa ja opetuksessa, osittain oppijan mielenkiinnon kohteista käsin. Kirjoituksessa korostetaan, että tietoisuutta eri informaaleista oppimisympäristöistä tulisi entisestään lisätä niin oppijoiden kuin opettajienkin keskuudessa. nonPeerReviewed
Lessons Learned Using Theory of Mind Methods to Investigate User Social Awareness in Virtual Role-Play
2009
Theory of mind (ToM) methods were used to investigate children’s interpretations of the social and emotional states of synthetic pedagogical characters, focusing on children’s cognitive and affective empathic responses to characters in bullying scenarios and their social awareness and understanding of the characters’ situations. Although cognitive approaches typically do not consider user social awareness and emotional understanding and their roles in interaction, this is critical for our research on empathic engagement. We present a novel approach focusing on story and character comprehension using concepts from ToM methods to understand children’s interpretations of characters within virt…
Sustainable Value Co-Production and Co-Creation in Virtual Reality: An Exploratory Research on Business-to-Business Interactions
2022
The objective of this study is to identify the environment for business interactions in virtual reality in the value co-production and co-creation process and to understand how such an environment enables the sustainable development of co-creational activities. This paper takes the concepts of value co-production and co-creation and presence and the Actors, Resources, and Activities Model as conceptual references for the exploration of interactions in virtual reality. Using ten in-depth interviews with senior managers, this paper takes an exploratory case analysis perspective. Results show how the sense of presence—level of immersion to which a medium that produces seemingly accurate repres…
A Hybrid Virtual-Augmented Serious Game to Improve Driving Safety Awareness
2018
The use of 3D virtual content and Augmented Reality (AR) in certain applications allows designing tools and serious games that are more attractive to the potential users. Focusing on the area of learning and education, these technologies can be adapted to the requirements of the application that needs to be developed, to the available devices on which they are expected to run and also to the learning content. However, in most applications only a single interaction paradigm and a single visualization mode is used, restricting the potential benefits of the system. In this paper, we propose a software application designed to improve driving safety awareness and learning for both adults and chi…
Multi-Control Virtual Reality Driving Simulator
2019
Immersive technologies (virtual and augmented reality) started gaining a lot of ground over the past few years initially in the video game industry, followed by simulators and finally integrated into many other classic applications. This paper aims to analyze how users respond to using new controlling devices in a scene designed as a driving simulator (race car track). The landscape and the controls are specifically tailored for interactions within immersive environments. In order to understand the capabilities of the experimental application and evaluate the new controls, several tests were conducted. The results are presented from a user experience perspective, emphasizing qualities, side…
Towards a SDN-based architecture for analyzing network traffic in cloud computing infrastructures
2015
Currently, network traffic monitoring tools do not fit well in the monitoring of cloud computing infrastructures. These tools are not integrated with the control plane of the cloud computing stack. This lack of integration causes a deficiency in the handling of the re-usage of IP addresses along virtual machines, a lack of adaption and reaction on highly frequent topology changes, and a lack of accuracy in the metrics gathered for the networking traffic flowing along the cloud infrastructure. The main contribution of this paper is to provide a novel SDN-based architecture to carry out the monitoring of network traffic in cloud infrastructures. The architecture in based on the integration be…