New species of fermions and bosons, cosmological constant problem and a farewell to spin–statistics theorem

If dark matter exists in the form of ultralight fermionic and bosonic species, then (a) it can accelerate evaporation of astrophysical black holes to the extent that their lifetimes can be reduced to astronomical time scales, a and (b) if there are extremely large number of such species it has the potential to solve the hierarchy problem [H. Davoudiasl, P. B. Denton and D. A. McGady, Phys. Rev. D 103 (2021) 055014; G. Dvali, Fortschr. Phys. 58 (2010) 528]. Here, we put forward a proposal that darkness of many of these new particles is natural, and in addition, the net zero point energy of the fermions exactly cancels that coming from the new bosons. The needed fermion–boson equality, and matching the fermion–boson degrees of freedom, comes about naturally. A very direct argument that allows the departure from the spin–statistics theorem is presented.

“The Trout Breaks the Ice” by Mikhail Kuzmin: Verse and Grammar

The author explores various compositional levels of the Russian modernist author Mikhail Kuzmin’s long poem “The Trout Breaks the Ice”. The levels are: (1) the grammatical tenses vs. the astronomical time (non-finite verb forms (imperative) are also assumed to indicate time); (2) the meters of this polymetric poem; (3) realistic vs. symbolic and (4) static vs. dynamic narrative modes. The analysis is done by the chapter, and the data are summarized in five tables. It turned out that certain features regularly co-occur, thus supporting the complex composition of the poem. In particular, the present tense and time regularly mark the realistic and static chapters written in various meters, whereas the past tense and time are specific to the realistic and dynamic chapters written in iambic pentameter. The article sheds new light on the compositional structure of Kuzmin’s poem and the general principles of poetic composition.

Astronomical time scale for the Doushantuo Formation ofEdiacaran in South China: Implications for the duration of the negative δ13C excursion

<p>Reconstructing the high-resolution astrochronology framework for the Ediacaran is critical to fully understand the evolution of the sedimentary environment and the carbon cycle in South China. The Ediacaran was perhaps one of the most important intervals in the Earth's sedimentary environment and biological evolution history, which witnessed the carbon isotope perturbation frequently, the emergence and evolution of metazoans, and the extreme climate change. There are many controversies for the characteristics and origin of these geological, biological and extreme climate events due to the lack of continuous and high-resolution astronomical time scale in the Ediacaran. We here propose to study the systematic cyclostratigraphic analysis of the Doushantuo Formation based on the Jiulongwan section in South China, and then use the long-eccentricity (405-kyr) for astronomical tuning to establish continuous and high-resolution astrochronologic framework, which would provide chronological constraints on carbon isotope negative  excursions, biological evolution and the extreme climate change for the Ediacaran. In order to reveal the inner correlation of the onset age, sequence of these major geological events as well as biological evolution in the Doushantuo Formation on the Ediacaran. Moreover, we also try to discuss the astronomical orbits-forcing factor that may lead to the occurrence and evolution of these major geological events, which would provide scientific evidence for studying the global climate change in the future.</p>