In Christian ethical and anthropological discourse, the concept of “human nature” represented one of the main criteria from which norms for social and individual ethics derived. The age of Enlightenment brought about a serious criticism of this concept refusing its metaphysical justification. New opinions prevailed in philosophical and scientific discourse of that time. They rejected existence of common anthropological determinants and supported a thesis claiming that people are primarily formed in society and that the concept of “human nature” entails a risk of abuse of power by promoting only one view of the human being. The presented paper studies the relevance of this concept today and examines it from the perspective of Jonathan Haidt’s social psychology, which, as the author claims, contributes to better understanding of human nature. Standard metaphysical and theological definitions of human nature that prevailed mostly in Christian discourse needs to be extended by including findings from social and exact sciences and use them as a suitable medium for a dialogue in a pluralistic environment, and push the limits of our knowledge about humans.

Scavenging fauna was sampled by means of baited traps in three different habitats of Kongsfjorden (Svalbard, Arctic). Lysianassoid amphipods, represented by nine species, made up 98.9% of the materials collected between 5 and 30 m. The dominant species were Anonyx sarsi and Onisimus caricus, which constituted 91.6% of collected individuals. The abundance of animals attracted to traps was variable and a gradual decrease in abundance with increasing depth was observed. Spatial segregation of species resulted from a number of factors ranging from depth, hydrological conditions, sedimentation regime and bottom type to food accessibility. Gut contents analysis indicated that in summer Onisimus caricus relied on zooplankton sinking due to the osmotic shock in the glacial bay; Onisimus edwardsi had a diverse diet; and Orchomenella minuta fed mostly on small crustaceans. During laboratory experiments all species were observed feeding on dead or injured zooplankton, while preying on live planktonie organisms was never noted.

The environment is the greatest good for the people. Everyone wants to breath air of the best possible quality, whether living in the city center of a metropolis or in a rural area. Air polluted with very fine particles contribute to the negative effect on people’s health and the whole environment. A significant part of air dust pollution comes from the so-called low emissions sources which include: non-standard furnaces, fireplaces, low-efficiency outdated boilers and local heat sources. Since the beginning of Polish Mining Group’s existence, the company actively participates and supports many activities, the aim of which is to improve the air quality by producing and supplying high quality coal for the residential sector. The company has undertaken pro-ecological activities towards creating a new, pro-ecological strategy as well as product offer. The production of an ecological coal assortment is systematically developing but new coal products are also being launched on the market. One of the company’s priorities is the production of thermal coal for the residential sector. Many organizational and technological changes have been made In that area (e.g. the establishmsnt of the Eco-Fuels Production Plant) to ensure a suitable level of production of the highest quality thermal coal.

The title of the article, formulated by the Editors, requires a few clarifcations of terms. Both phenomena – Christianity and the African culture – are de facto plural and have to be regarded and treated as such. The title also juxtaposes a term that describes a religious reality with a cultural one (this also touches on the understanding of the relation between religion and culture). This can only be done on the assumption that “Christianity” means “a culture permeated by the Gospel message”.

The author argues that Christians have never presented a unifed attitude towards the African culture. As in the Christian antiquity, as in later times (including the present) Christians showed ambivalent attitudes towards the African culture. Some strongly opposed it, some allowed a restricted borrowing, some engaged actively with the African culture. One cannot see these attitudes in terms of development or regress because they have been synchronically present at all times. The attitudes towards African culture also changed at times within the particular strands of Christianity. What was rejected of hardly acceptable at one time becomes the order of the day at other. However, these attitudes have not been synchronized in all christian churches and communities.

After stating the article’s argument and making the terminological reservations, the author substantiate the argument presenting three types of interaction between Christianity and African culture giving examples from different times and regions.

The problem of consolidation of soil has been widely investigated. The basic approach was given by Terzaghi who assumed soil of constant physical and mechanical parameters. In the case of peat consolidation, the permeability coefficient of soil and the elasticity modulus are functions of the settlement which is an important additional factor. The model proposed here assumes varying the elasticity and permeability coefficients. Moreover, the settlement is described by the so-called elementary curve which was approximated empirically based upon laboratory tests. The model allows to consider the case when the filtration in the peat body goes in horizontal direction. It happens so when the charging layer does not receive outgoing water from the pores. The model includes also the case when the load involving consolidation varies in time i.e. the charging layer grows up gradually. The model has been applied practically in several cases and it comes that there is a good agreement between calculated and measured settlement of the consolidated peat layer.

The aim of the article is to discuss Ingmar Bergman’s film Persona in a philosophical context and analyze the problem of the identity of the main characters. During the analysis, elements of existential thought and Sartre's philosophy were used. The psychological and philosophical layer of the film combines the common theme of broadly understood existence. The focus was on the identity problems of the main characters of the film and the linguistic layer in the context of the interpersonal conflict.