Search results for "Coin"
showing 10 items of 612 documents
Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009
2017
Astronomy and astrophysics 603, A31 (2017). doi:10.1051/0004-6361/201629540
The Possibility of Performing Money Functions by Digital Currencies Illustrated With an Example of Bitcoin
2018
In this paper the considerations on possibility of performing money functions by digital currency with an example of bitcoin are presented. The conditions of bitcoin emerge and its spectacular dynamic development caused by limitations of contemporary financial system are being discussed. This paper introduced one of the most popular digital currencies — bitcoin in terms of three elementary economic functions of money: mean of exchange, measure of value and store of value.
O potędze "flexusa", czyli znaczenie przypadku w nowelach Guy de Maupassanta
2018
Guy de Maupassant, mistrz noweli realistycznej, szczególną rolę przypisuje w swych utworach przypadkowi, który uznaje za jeden z głównych czynników kształtujących ludzkie losy. W trzech analizowanych opowiadaniach: Włosy, Kelner, małe piwo!... oraz Clochetle, przypadek, który można określić łacińskim słowem lexus, oznaczającym ‘zwrot, punkt zwrotny’, urasta do rangi swoistego punktu ciężkości całej fabuły. We wszystkich trzech tekstach nagły zwrot akcji spowodowany przez błahe, banalne wydarzenie lub niespodziewany splot okoliczności wywiera silny wpływ na ułożoną i przewidywalną egzystencję bohaterów. A ponieważ w kwestii natury ludzkiej Maupassant jest pesymistą, stąd działanie owego flex…
Równowaga długookresowa pomiędzy cenami w łańcuchu dostaw na rynku mleka
2019
Łańcuch dostaw żywności łączy działania, ze sfery pierwotnej produkcji rolnej (rolnika) aż do konsumenta. Obejmuje on producentów, dostawców, firmy transportowe, magazyny, sprzedawców hurtowych i detalicznych, organizacje usługowe oraz konsumentów. Poziomy cen w poszczególnych ogniwach łańcucha dostaw na rynku mleka, ale nie tylko, charakteryzują się cyklicznością. Celem artykułu jest zbadanie, na podstawie danych pochodzących z Głównego Urzędu Statystycznego, występowania długookresowych zależności pomiędzy cenami na rynku mleka w poszczególnych ogniwach łańcucha dostaw. W badaniach wspomnianych zależności pomocny będzie test na występowanie kointegracji Engle’a-Grangera. Zakres czasowy an…
Teschoviruses and sapeloviruses in faecal samples from wild boar in Spain
2013
Teschovirus and Sapelovirus are two genera of the Picornaviridae family, comprising highly variable and heterogeneous enteric viruses, commonly found in faecal samples from domestic pigs. Although both of them are also known to infect wild boar, studies on their presence in these wild suids are scarce. The present study aimed at determining the presence of porcine teschovirus (PTV) and sapelovirus (PSV) in free-living wild boar populations, as well as to study their relationships with similar viruses present in pigs. Fresh faecal samples (n = 63) from wild boar were collected in Doñana Biological Reserve (SW Spain) during 2007 and 2011, and analysed using multiplex RT-PCR for the simultaneo…
Offensive Transitions in High-Performance Football: Differences Between UEFA Euro 2008 and UEFA Euro 2016
2019
[Abstract] Coaches, footballers and researchers agree that offensive transitions are one of the most important moments in football today. In a sport where defense over attack dominates, with low scores on the scoreboard, the importance of these actions from the offensive point of view becomes very important. Despite this, scientific literature is still very limited on this topic. Therefore, the objectives set out in the present investigation have been two: first, by means of a proportion analysis and the application of a chisquare test, it was intended to describe the possible differences between the offensive transitions made in the UEFA Euro 2008 and UEFA Euro 2016; then, through differen…
Physical or cultural frontier: a question of method. The example of the Imera-Salso sicilian valley
2009
Facing the study of the frontier on the basis of archaeological evidence presupposes the construction of a rigorous methodological grid which acts as an interpretative filter of the evidence to be analysed. From the 1970s to the present, frontier studies have undergone a notable increase. The debate on the subject has expanded, directing research on several levels. This contribution proposes a model of analysis of the numismatic and archaeological documentation aimed at studying the frontier of the Imera-Salso valley in Sicily
Coincidence-Summing corrections in high resolution gamma-ray spectrometry: simplified analytical expressions
2010
Simplified expressions to determine the coincidence-summing correction factors by using a matrix representation of a decay scheme are reported. Expressions can be used directly for point sources, with the introduction of full-energy-peak and total efficiencies, while for extended sources a more complex procedure, though approximate, is suggested.
The Social Life of Viruses
2021
Despite their simplicity, viruses exhibit certain types of social interactions. Situations in which a given virus achieves higher fitness in combination with other members of the viral population have been described at the level of transmission, replication, suppression of host immune responses, and host killing, enabling the evolution of viral cooperation. Although cellular coinfection with multiple viral particles is the typical playground for these interactions, cooperation between viruses infecting different cells is also established through cellular and viral-encoded communication systems. In general, the stability of cooperation is compromised by cheater genotypes, as best exemplified…
Hepatitis C virus co-infection and sexual risk behaviour are associated with a high homocysteine serum level in HIV-infected patients.
2012
BACKGROUND AND AIMS: A better understanding of the relationship of homocysteine with cardiovascular risk factors is needed. The objectives of this study were to assess the serum level of homocysteine in HIV-infected patients and to analyse the possible association of increased levels of the amino acid with cardiovascular risk factors, demographic and clinical characteristics of participants. METHODS: Cross-sectional study carried out as a supplementary task to the usual controls necessary in HIV-infected patients in the outpatient clinic of the Hospital General of Castellon, Spain. For two consecutive visits the demographic, clinical and HIV-related characteristics and blood analyses result…