The pond slider Trachemys scripta is one of the most widespread alien turtle species in the world. Its unregulated trade and the consequent uncontrolled releases into the wild led to negative impacts on the native turtles of the invaded areas. In Italy, alien pond sliders are widely spread, and the occurrence of hatchlings and well-established populations is known in some areas. However, to date in Sicily, only a single female of Trachemys scripta laying eggs was reported. Besides that, nothing is known about the actual reproduction success and establishment of self-sustaining T. scripta populations in Sicily. Therefore, based on 14 previously characterised highly polymorphic microsatellite loci, we aimed to unravel if the alien turtles successfully reproduce in Sicily, in both natural and semi-natural areas (i.e., lake “Biviere di Gela” and “Parco d’Orléans”, respectively). Our results show a clear structuring of the two studied populations. Several full-sibling relationships between the sampled turtles were found, suggesting actual reproduction in the wild of the pond sliders in Sicily. However, further sampling is desirable since no parent-offspring relationships were observed in the studied populations. Due to our results, systematic monitoring of alien pond sliders in the whole of Sicily is crucial for better planning of mitigation strategies in order to protect the native biota of Sicilian inland waters.

In adults of both sexes of Euphausia superba analysed in total without alimentary tract there were identified with help of chromatographic and spectrophotometric methods: β-carotene, free and ester astaxanthine, cantaxanthine, β-cryptoxanthine. lutein and dihydroxy-ζ-carotene, and additionally in females zeaxanthine and flavoxanthine. However, particular parts of body (with an exception of eyes, legs and trunk) and especially the exosceleton cotain less carotenoids, mainly carotene and astaxanthine.

The aim of this article is not to consider the need for the ratification of specific international agreements, but it is rather an attempt to determine the consequences of potential ratification with respect to the contents of maritime code regulations. It seems that reference to the resolutions of a given convention by maritime code regulations is generally a better solution. This permits avoiding distortion in the content of international agreements. Nonetheless, these principles should not be applied always or arbitrarily. It may occur that, in a specific instance, it is better to try to incorporate the resolutions of a given convention into the contents of the maritime code. The fundamental conclusion drawn by the author of the article is that there is no need to change the maritime code when new international conventions are ratified.

A novel method to improve the performance of the frequency band is cognitive radio that was introduced in 1999. Due to a lot of advantages of the OFDM, adaptive OFDM method, this technique is used in cognitive radio (CR) systems, widely. In adaptive OFDM, transmission rate and power of subcarriers are allocated based on the channel variations to improve the system performance. This paper investigates adaptive resource allocation in the CR systems that are used OFDM technique to transmit data. The aim of this paper is to maximize the achievable transmission rate for the CR system by considering the interference constraint. Although secondary users can be aware form channel information between each other, but in some wireless standards, it is impossible for secondary user to be aware from channel information between itself and a primary user. Therefore, due to practical limitation, statistical interference channel is considered in this paper. This paper introduces a novel suboptimal power allocation algorithm. Also, this paper introduces a novel bit loading algorithm. In the numerical results sections, the performance of our algorithm is compared by optimal and conventional algorithms. Numerical results indicate our algorithm has better performance than conventional algorithms while its complexity is less than optimal algorithm.

The organization of graduate and postgraduate studies at the Faculty of Theology of the Cardinal Stefan Wyszyński University in Warsaw reveals the specificity of the theology in Warsaw. In the future, the Faculty of Theology should pay a special attention to the high level of the specialisations within the scope of the classical theology, but on the other hand should care about new specialisations, which should be more attractive.

Biblical studies, fundamental theology, dogmatic theology, moral theology are at the very heart of theology. It is necessary to foster doctoral and habilitation thesis in the field of these specialisations and to care for their high, world-class level. Considering the needs of the Church, the development of the liturgical studies and catechetical studies needs to be supported.

As far as future career opportunities for graduates of the Faculty of Theology are concerned, new specializations should be promoted, such as media education and journalism, theology of culture, tourism in biblical countries. A scientific reflection on the role of mass media and on the relations between theology and culture is also very important. Th ere should be place for vetera et nova at university, for the theology conceived in the traditional way and for attempts at practising theology in a new way.

This article discusses activities of the Main Council of Science and Higher Education in 2022.