Attributes of the Silesians’ political subjectivity in the context of a debate on the 2021 National Population and Housing Census and attempts to establish the Silesian language as a regional language

The objective of this paper is to present the attributes of political subjectivity of the Silesians in the context of the debate on the 2021 National Population and Housing Census, as well as the accompanying debate on the attempt to amend the Act of 6 January 2005 on national and ethnic minorities and regional language, which provides for the inclusion of the Silesian language as a regional language in the provisions of the Act. The thesis presented in this text assumes that the agitation and commitment related to the census not only make it possible to analyse the sense of identity and/or distinctiveness of the Silesians and to develop, for instance, reflection on the issue of recognition, but also open up a space for research on the political subjectivity of those who identify with Silesianness. I intend to use a political theory interpretation that does not focus on political competition or participation in the governing process, but takes into account political activities of individuals and groups also outside the strictly state sphere in the field where various social and political aspirations and interests interact.

A Test Can Have Multiple Reliabilities

It is argued that the generalizability theory interpretation of coefficient alpha is important. In this interpretation, alpha is a slightly biased but consistent estimate for the coefficient of generalizability in a subjects x items design where both subjects and items are randomly sampled. This interpretation is based on the “domain sampling” true scores. It is argued that these true scores have a more solid empirical basis than the true scores of Lord and Novick (1968), which are based on “stochastic subjects” (Holland, 1990), while only a single observation is available for each within-subject distribution. Therefore, the generalizability interpretation of coefficient alpha is to be preferred, unless the true scores can be defined by a latent variable model that has undisputed empirical validity for the test and that is sufficiently restrictive to entail a consistent estimate of the reliability—as, for example, McDonald’s omega. If this model implies that the items are essentially tau-equivalent, both the generalizability and the reliability interpretation of alpha can be defensible.

Fibre-base duality of 5d KK theories

We study circle compactifications of 6d superconformal field theories giving rise to 5d rank 1 and rank 2 Kaluza-Klein theories. We realise the resulting theories as M-theory compactifications on local Calabi-Yau 3-folds and match the prepotentials from geometry and field theory. One novelty in our approach is that we include explicit dependence on bare gauge couplings and mass parameters in the description which in turn leads to an accurate parametrisation of the prepotential including all parameters of the field theory. We find that the resulting geometries admit “fibre-base” duality which relates their six-dimensional origin with the purely five-dimensional quantum field theory interpretation. The fibre-base duality is realised simply by swapping base and fibre curves of compact surfaces in the local Calabi-Yau which can be viewed as the total space of the anti-canonical bundle over such surfaces. Our results show that such swappings precisely occur for surfaces with a zero self-intersection of the base curve and result in an exchange of the 6d and 5d pictures.

New G2-conifolds in M-theory and their field theory interpretation

A recent theorem of Foscolo-Haskins-Nordström [1] which constructs complete G2-holonomy orbifolds from circle bundles over Calabi-Yau cones can be utilised to construct and investigate a large class of generalisations of the M-theory flop transition. We see that in many cases a UV perturbative gauge theory appears to have an infrared dual described by a smooth G2-holonomy background in M-theory. Various physical checks of this proposal are carried out affirmatively.

Phases of holographic interfaces

We compute the phase diagram of the simplest holographic bottom-up model of conformal interfaces. The model consists of a thin domain wall between three-dimensional Anti-de Sitter (AdS) vacua, anchored on a boundary circle. We distinguish five phases depending on the existence of a black hole, the intersection of its horizon with the wall, and the fate of inertial observers. We show that, like the Hawking-Page phase transition, the capture of the wall by the horizon is also a first order transition and comment on its field-theory interpretation. The static solutions of the domain-wall equations include gravitational avatars of the Faraday cage, black holes with negative specific heat, and an intriguing phenomenon of suspended vacuum bubbles corresponding to an exotic interface/anti-interface fusion. Part of our analysis overlaps with recent work by Simidzija and Van Raamsdonk but the interpretation is different.

Evolutionary Relation of Mathematical Physics Equations Evolutionary Relation as Foundation of Field Theory Interpretation of the Einstein Equation

It was shown that from the mathematical physics equations that are composed of the conservation laws equations for energy, momentum, angular momentum, and mass and describe material media such as thermodynamical, gas-dynamical, cosmic, and others, it follows the evolutionary relation that possesses the properties of field theory equations. The evolutionary relation, which is based on conservation laws, unites the field theory equations, reveals their internal connection, and discloses the properties, which are common for all equations of field theory. The correspondence between the equations of field theory and evolutionary relation physics indicates that the equations of field theory are related to the equations of mathematical physics. This can reveal the fundamentals of field theory. These results are obtained using skew-symmetric differential forms describing conservation laws on which the equations of mathematical physics and equations of field theory are based. In this paper, the Einstein equation will be investigated by application of skew-symmetric differential forms.

The Yemeni Conflicts: A Mismatch Theory Interpretation

This article examines the causes of the current centrist and secessionist civil conflicts in Yemen. We argue that it is possible to explain the outbreak of the struggle of the Houthis against the central government as well as the acceleration of southern secessionist demands in light of the mismatch theory developed by Herrera, Morelli, and Nunnari (2019). In line with this model, we show that the two conflicts erupted once the relatively low political-economic power of the Houthis and of the southern secessionists was no longer matched by a parallel imbalance in their relative military strength vis-à-vis the central government. To examine the implications of the theory in Yemen, we use qualitative evidence on the two ongoing conflicts. The Yemeni case suggests that conflicts exhibiting a non-parallel asymmetry in relative military strength and political-economic power between the warring actors can be interpreted in light of the mismatch theory, regardless of their direction or the objectives their players pursue.