to find the quantity and quality of wastewaters of the two main industrial units of khoy city in west azerbaijan province, iran, namely the slaughterhouse and the totia chocolate factory, ten composite samples were taken in 112 hour intervals between 3.5 and 7.5 a.m. (4 hours working shift) from the slaughterhouse and between 7.5 a.m. and 2 p.m from the totia chocolate factory (8hours working s...

We studied the instability of rainfall, harvested areas and aggregate yields rice, beans, cassava corn made projections per capita production these crops between 2022 2031. Rainfall in Maranhão years 1933 to 2020 was placed into three periods: short, normal rainy. Agricultural population data from IBGE were used. Annual rainfall collected National Oceanic Atmospheric Administration (NOAA). Vari...

I address the question of the fluctuations in fishery landings. Using the fishery statistics time-series collected by the Food and Agriculture Organization of the United Nations since the early 1950s, I here analyze fishing activities and find two scaling features of capture fisheries production: (i) the standard deviation of growth rate of the domestically landed catches decays as a power-law ...

This study examines regional convergence in per capita personal income in the US and Canada. We find that the disparity in real per capita income levels across US states (Canadian provinces) has declined, but income levels are not identical. Income levels become more aligned once costs of living are accounted for in relative per capita income series. US states (Canadian provinces) converge at a...

In many developed countries fish and shellfish are increasingly promoted as healthy alternatives to other animal protein. We analysed how much fish was available to UK and global populations after accounting for processing losses, and compared this to recommended levels of fish consumption. In 2012, UK domestic fish landings per capita fell 81% below the recommended intake, although declines we...

Since the 1950s, economic growth rates in industrialized countries have declined. Whereas the per capita growth rate of gross domestic product in industrial countries was 3.7 in the 1950s ind 4.2 in the 1960s, the growth rate came down to 3.0 in the 1970s and to 2.1 in the 1980s (Table 1). This picture of declining growth rates is even stronger when the growth rate is not expressed on a per cap...