О находке в вечной мерзлоте второго щенка эпохи плейстоцен, с комментариями профессора Медицинского института Северо-Восточного федерального университета имени М. К. Аммосова Даримы Гармаевой

О возможном возвращении сибирской язвы и других заболеваний в связи с глобальным потеплением в Сибири, с комментарием якутского биолога Бориса Кершенгольца

О древних бактериях, которые могут помочь при нефтяном загрязнении

О таянии вечной мерзлоты в Чурапчинском улусе Якутии, с комментариями директора Института мерзлотоведения им. П. И. Мельникова Михаила Железняка, заместителя директора Александра Федорова, министра природных ресурсов и экологии Российской Федерации Александра Козлова

О таянии многолетней мерзлоты. Комментариии ученого Московского государственного университета Алексея Маслакова, директора Института мерзлотоведения им. П. И. Мельникова (г. Якутск) Михаила Железняка, заместителя руководителя Института мерзлотоведения им. П. И. Мельникова Александра Федорова, министра природных ресурсов и экологии Российской Федерации Александра Козлова, жителей села Чурапча (Якутия) Егора Дьячковского и Сергея Атласова

О проекте учёных Сергея и Никиты Зимовых по созданию природного заповедника "Плейстоценовый парк"

Riesz potentials are convolution operators with fractional powers of some distance (Euclidean, Lorentz or other) to a point. From application point of view, such potentials are tools for solving differential equations of mathematical physics and inverse problems. For example, Marsel Riesz used these operators for writing the solution to the Cauchy problem for the wave equation and theory of the Radon transform is based on Riesz potentials. In this article, we use the Riesz potentials constructed with the help of generalized convolution for solution to the wave equations with Bessel operators. First, we describe general method of Riesz potentials, give basic definitions, introduce solvable equations and write suitable potentials (Riesz hyperbolic B-potentials). Then, we show that these potentials are absolutely convergent integrals for some functions and for some values of the parameter representing fractional powers of the Lorentz distance. Next we show the connection of the Riesz hyperbolic B-potentials with d’Alembert operators in which the Bessel operators are used in place of the second derivatives. Next we continue analytically considered potentials to the required parameter values that includes zero and show that when value of the parameter is zero these operators are identity operators. Finally, we solve singular initial value hyperbolic problems and give examples.

О таянии многолетней мерзлоты с комментариями директора Плейстоценового парка Никиты Зимова

Galactic cosmic ray (GCR) diffusion in interplanetary space depends in a certain way on the degree of regularity of the interplanetary magnetic field (IMF). The sector IMF structure is manifested in inhomogeneous GCR distribution in the heliosphere. In parallel with the usual sectors associated with solar activity, one should take into account the sectors, which are caused by the Jupiter activity. It is known that the Jupiter is a powerful regular source of high-energy electrons (0.2-40 MeV), the density of which, on the average, is many times higher than that of solar cosmic rays. The high-energy electrons are systematically registed with the 399-day period in the near-Earth space. According to estimations of the particle energy density their flux is sufficient to decrease the magnetic field in the Jovian sector and can due to corresponding large-scale inhomogeneity in the GKL distribution. Hereby, we present the evidences that the GCR diffusion is noticeably stronger in the sector where there are Jovian electrons. By data on periodic passage of those sectors near the Earth, we have treated neutron monitor data using the superposed epoch technique. The day of the Earth and Jupiter opposition is taken as a zero epoch. At large statistical data (9925 days) it is found that the GCR intensity in that period increases with an amplitude near 1%. The groud effect is manifested with the period of 399 days and its maximum time is in a certain way shifted relative to the planet opposite moment.