Mathematician refines model of predator-prey relations in the wild

RUDN University mathematician refined the model of predator-prey relations in the wild
The traditional mathematical model of predator-prey relations in the wild does not take into account indirect nonlocal interactions. However, according to a mathematician from RUDN University, they affect the dynamics of predators and prey in a system, and the nature of this effect is sensitive to the initial conditions. Credit: RUDN University

The traditional mathematical model of predator-prey relations in the wild does not take into account indirect nonlocal interactions. However, according to a mathematician from RUDN University, they affect the dynamics of predators and prey in a system, and the nature of this effect is sensitive to the initial conditions. An article about his work was published in the Communications in Nonlinear Science and Numerical Simulation journal.


Ecologists use mathematical models of ecosystems to understand their structure and predict their development. Predator-prey is one of the basic models of this kind. With its help scientists can for instance calculate

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Tennis: Surprises keep coming in wild women’s draw

PARIS (Reuters) – It is not unusual for the French Open to throw up surprises in the women’s draw but this year’s re-scheduled tournament has been more wildly unpredictable than ever.

On Sunday Argentina’s 131st-ranked Nadia Podoroska beat Czech Barbora Krejcikova, ranked 114th, to make it two qualifiers into the last eight for the first time since 1978.

Earlier, Italian qualifier Martina Trevisan, ranked 159th, had beaten Dutch fifth seed Kiki Bertens in another huge upset on the day that Polish teenager Iga Swiatek thrashed top seed Simona Halep for the loss of three games.

The draw had already been shredded with only 13 of the top 32 seeds having made it through to the third round — the lowest number in a women’s draw since 32 seeds were introduced in Grand Slams at Wimbledon in 2001.

The heavier than usual balls being used, the relentless cold and rainy conditions

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Constructing Old US Wild West Scale Model Buildings in Different Scales

Los Angeles, CA ( TS Newswire ) — 30 Sep 2020

Building old US Wild West scale model buildings has always been an age-long hobby for lots of individuals, especially baby boomers. It has a way of making people reminisce about buildings and several other things that took place in the last centuries. Like other things, this fun-filled activity has been improving over the years. All thanks to the advent of technology that now allows individuals to download any model buildings directly from their computers and start buildings whatever they want.

Of course, these old US Wild West scale model buildings are available in a wide range of scales. So, whether you want to build HO scale buildings, N scale buildings, or OO gauge buildings, everything is possible today. You dont even need to go through any stress before doing so.

If you are interested in this hobby, everything has

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