A large volume of tailings has been produced in Anjir-tangeh coal washing plant for 22 years of human activity. The coal washing activities have reduced plant diversity near the plant. The environmental impact of coal washing plant on the vegetation around the factory was studied in two seasons. The concentrations of Pb, Cd and Cr, measured in different native plant species, were in normal rang...

Drought induced stress is one of the most significant environmental challenges. This study was designed to evaluate the effects of drought stress on crop yield and antioxidant systems during the vegetative period of wheat. The study was carried out in a greenhouse using factorial experiment based on complete randomized block design (RCBD) in three replications in Razi University in Iran from 20...

In recent years, it is considerably attempted to develop the concept of energy dissipation as an applicable technology to overcome the energy released by earthquakes. The passive control systems such as metallic dampers have been widely considered. The dampers are basically used to mitigate the structural responses and reduce the damages in main structural elements by energy dissipation. ...

We propose a considerably faster approximation of the well known SIFT method. The main idea is to use efficient data structures for both, the detector and the descriptor. The detection of interest regions is considerably speed-up by using an integral image for scale space computation. The descriptor which is based on orientation histograms, is accelerated by the use of an integral orientation h...

The capacitated p-median problem (CPMP) consists of finding p nodes (the median nodes) minimizing the total distance to the other nodes of the graph, with the constraint that the total demand of the nodes assigned to each median does not exceed its given capacity. In this paper we propose a cutting plane algorithm, based on Fenchel cuts, which allows us to considerably reduce the integrality ga...

Data efficient reinforcement learning methods allow to optimize controllers (policies) for complex technical systems in a data-driven manner. Still, there is the risk that, when running such a policy on the real system, it performs considerably worse than expected. For policies with discrete actions it has been shown that this risk can be reduced considerably, when, instead of just using a sing...

Alex Petrucelli designed and performed research, collected and analyzed data, and wrote the paper. Lora Grainger designed and performed research for Figs 1B, 2 and 4 and contributed considerably to the development of the work. Michael Rak designed and performed research for Fig. 1C and 10C, constructed recombinant viruses, and contributed considerably to the development of the work. Felicia Goo...

The health of the Inuit has undergone substantial changes over the past five centuries, as a result of social, cultural, and economic changes brought about by interactions with Europeans. This process was accelerated considerably in the second half of the twentieth century. The incidence of infectious diseases has declined considerably but is still high compared with Western societies. Chronic ...

Background In the early 20 century, processing tomatoes were mainly produced in the eastern U.S. with the leading states being New Jersey, Maryland and Indiana. At that time, the shipping costs from these states to the major markets in the East and Midwest were considerably lower than those for tomatoes produced in California . Despite this disadvantage, production was considerably expanded in ...

If the fraction of species in area A that are also found in one-half of that area is independent of A, the distribution of species is self-similar and a number of observed patterns in ecology, including the widely cited species-area relationship connecting species richness to censused area, follow. Self-similarity also leads to a species-abundance distribution, which deviates considerably from ...