Zipf's law is the most common statistical distribution displaying scaling behavior. Cities, populations or firms are just examples of this seemingly universal law. Although many different models have been proposed, no general theoretical explanation has been shown to exist for its universality. Here, we show that Zipf's law is, in fact, an inevitable outcome of a very general class of stochasti...

, i.e. just above the dissociation threshold, was carefully examined. Rotational distribution observed was compared with statistical one calculated by phase space theory. Two distinct types of rotational distributions were found; one of them exhibits non-statistical distribution while the other is statistical one expected by phase space theory. In the case that a vibronic energy of the initial ...

The 17-4PH alloy is a martensitic stainless steel with 3–5 wt% Cu, strengthened by the precipitation hardening. Due to excellent mechanical properties, corrosion resistance and ease of heat treatment, this alloy has unique applications in nuclear power plants and marine constructions. In this paper, the influence of ageing heat treatment, solution annealing followed by ageing at 480, 550 and 62...

The microbial communities living in the human intestine can have profound impact on our well-being and health. However, we have limited understanding of the mechanisms that control this complex ecosystem. Here, based on a deep phylogenetic analysis of the intestinal microbiota in a thousand western adults, we identify groups of bacteria that exhibit robust bistable abundance distributions. Thes...

introduction: regarding the increasing number of elderly people, their quality of life becomes more important. spiritual well-being is one of the most important aspects of health status which has often been neglected in some nations. this study aims to identify the relationship between spiritual well-being and quality of life among the elderly people residing of zahedan city in 2016. methods: t...

The population of the developed world is steadily ageing. In the European Union, approximately 22% of persons are over 60 years of age and this is projected to increase to more than 27% by the year 2020. This has major implications for health care resources and the productive workforce. Ageing is accompanied by a decline in the physiological reserve of all organ systems, compromising homeostasi...

Most research on F0 has attempted to model the behaviour of an entire linguistic community (e.g of speakers of US or UK English, French, Japanese etc). In this research, we attempt in two analyses to characterize some prosodic aspects of individual differences within the speaker community. For this, the statistical distributions of F0 and intensity parameters were examined. It was found in the ...