We study a phenomenological model for the continuous double auction, whose aggregate order process is equivalent to two independent M/M/1 queues.The continuous double auction defines here a continuous-time random walk for trade prices.The conditions for ergodicity of the auction are derived and, as a consequence, three possible regimes in the behav
Interpersonal communication has been severely affected during the COVID-19 pandemic.Protective measures, such as social distancing and face masks, are essential to mitigate efforts against the virus, but pose challenges on daily face-to-face communication.Face masks, particularly, muffle citronella horse shampoo sounds and cover facial expressions
In order to adopt strategies for conservation and development, it is necessary to estimate the amount and distribution of genetic diversity in existing populations of poplar.In this study, for estimating genetic diversity between and within 12 stands of Populus nigra established at Kermanshah and Zanjan provinces in Iran, morphological traits were
Aims.To study the dynamics of body weight, waist circumference, blood lipid and insulin demand in patients with type 2 diabetes mellitus (T2DM) during first year of combined treatment with metformin and insulin analogues, compared with insulin analogue monotherapy.Materials and Methods.We examined 78 patients with T2DM on newly initiated insulin th