Assessing the level of metallurgical and foundry technology in prehistoric times requires the examination of raw material finds, including elongated ingots, which served as semi-finished products ready for further processing. It is rare to find such raw material directly at production settlements, but Wicina in western Poland is an exception. During the Hallstatt period (800-450 BC), this area, situated along the middle Oder River, benefited from its favorable location in the heart of the Central European Urnfield cultures and developed networks for raw material exchange and bronze foundry production. Numerous remnants of casting activities, such as clay casting molds, casting systems, and raw materials, have been discovered at the Wicina settlement. This article aims to provide an archaeometallurgical interpretation of raw material management and utilization by prehistoric communities during the Early Iron Age. To achieve this, a collection of 31 ingots from the defensive settlement in Wicina, along with two contemporary deposits from Bieszków and Kumiałtowice, both found within a 20 km radius of the stronghold, were studied. Investigations were conducted using a range of methods, including optical microscopy(OM), scanning electron microscopy (SE M), energy-dispersive X-ray spectroscopy (SE M-EDS), X-ray fluorescence spectroscopy (ED-XRF), powder X-ray diffraction (PXRD), AAS and ICP-OES spectrometer. The significance of ingots is examined in the context of increasing social complexity and the rising popularity of bronze products, which necessitated diversified production and a demand for raw materials with different properties and, consequently, different chemical compositions.

The article concerns issues related to need of the introduction of protection prognostic areas, prospective resources pursuant to the new regulations of integrated development and space management in Poland. The article discuss the issues of actual and crucial documents and it also contains some critic and detailed analysis of the documents such as: the Responsible Development Strategy (SOR), Integrated National Development Strategy (ZSRK), Poland Integrated Development Strategy (SZRP). Author also analyzes whether the level of the implementation with the provisions motioned above is compliant with work in the committees reviewing issues in accordance with the work of the inter-ministerial teams for the updating and monitoring the strategy of development, set up at the Coordination Committee for Development Policy. The article indicates, among others, the increase of the legislative risk for the geological-mining or energy industry, the commodity sector. The risk may affect the crucial matters for the industry (functional areas, ICPs, the basis of their recognition in planning documents – taken into consideration as an element in the integrated management system of development). After all the analysis of the current provision, the article contains the summary with the main conclusions.

The subject matter of this article has never been taken on by Polish academic writers.

The activities within The Area adapt to the so-dolled parallel system, which has been devised by the United States during drafting the 1982 United Nations Convention on the Law of the Sea and the 1994 New York Agreement. The parallel system is further reinforced by concepts of registered marine parcels and work plan.

The article analyses the approval process of a work plan for offshore polymetallic nodules mining submitted by companies incorporated in the Kingdom of Tonga and in the Municipality of Laur. The author notes, on this occasion, an unsettling propensity for taking unfair advantage of developing countries by large mining corporations.

In the Carboniferous rock mass of the Upper Silesian Coal Basin, large changes in the geomechanical conditions often occur over relatively short distances. These conditions relate to rock properties that are primarily responsible for the occurrence of geodynamic phenomena in the rock mass. The main factor influencing the manifestation of these phenomena is tectonic stress developed during Variscan and subsequent Alpine orogenesis. This stress contributed to creating tectonic structures in the Carboniferous formations and influenced the properties of the rocks themselves and the rock mass they form. As a result of the action of the stresses, compaction zones (main stresses were compressive) were formed, along with zones in which one of the main stresses was tensile. For the compaction zones in the Carboniferous rocks, the following geomechanical parameters have been calculated: uniaxial compressive strength, Young’s modulus and post-critical modulus. The local stress field was determined according to the focal mechanism in selected areas (Main and Bytom troughs) to characterize changes in geomechanical properties of the rocks that are responsible for high-energy tremors (E ≥ 106 J, ML ≥ 2.2).

Laplace Transform is often used in solving the free vibration problems of structural beams. In existing research, there are two types of simplified models of continuous beam placement. The first is to regard the continuous beam as a single-span beam, the middle bearing of which is replaced by the bearing reaction force; the second is to divide the continuous beam into several simply supported beams, with the bending moment of the continuous beam at the middle bearing considered as the external force. Research shows that the second simplified model is incorrect, and the frequency equation derived from the first simplified model contains multiple expressions which might not be equivalent to each other. This paper specifies the application method of Laplace Transform in solving the free vibration problems of continuous beams, having great significance in the proper use of the transform method.