O zmianę przepisów o obrocie nieruchomościami

Digitalizacja i deponowanie archiwalnych zeszytów RPEiS sfinansowane przez MNiSW w ramach realizacji umowy nr 541/P-DUN/201

Ułatwiona migracja zanieczyszczeń do użytkowych poziomów wodonośnych w wyniku wad technicznych studni i otworów hydrogeologicznych

W artykule przedstawiono przykłady występowania, w głębokich dobrze izolowanych poziomach wodonośnych, zanieczyszczeń typowych dla wód przypowierzchniowych, w tym w szczególności bakteriologicznych. Udokumentowano, że zjawisko to może być związane z niezamknięciem poziomów przypowierzchniowych w trakcie wiercenia studni, a także brakiem lub niewłaściwym uszczelnieniem głowicy studni. Przedstawiono również w jaki sposób należy wykonać analizy chemiczne i bakteriologiczne w celu udokumentowania wad technicznych studni

Nowelizacja prawa autorskiego

Digitalizacja i deponowanie archiwalnych zeszytów RPEiS sfinansowane przez MNiSW w ramach realizacji umowy nr 541/P-DUN/201

Reforma ustawodawstwa spadkowego w odniesieniu do drobnych gospodarstw wiejskich

Digitalizacja i deponowanie archiwalnych zeszytów RPEiS sfinansowane przez MNiSW w ramach realizacji umowy nr 541/P-DUN/201

Pojęcie prawa autorskiego w rozwoju historycznym

Digitalizacja i deponowanie archiwalnych zeszytów RPEiS sfinansowane przez MNiSW w ramach realizacji umowy nr 541/P-DUN/201

Developing a Low SNR Resistant, Text Independent Speaker Recognition System for Intercom Solutions - A Case Study

This article presents a case study on the development of a biometric voice verification system for an intercom solution, utilizing the DeepSpeaker neural network architecture. Despite the variety of solutions available in the literature, there is a noted lack of evaluations for text-independent systems under real conditions and with varying distances between the speaker and the microphone. This article aims to bridge this gap. The study explores the impact of different types of parameterizations on network performance, the effects of signal augmentation, and the results obtained under conditions of low Signal-to-Noise Ratio (SNR) and reverberation. The findings indicate a significant need for further research, as they suggest substantial room for improvement

A comparison of the efficiency of riverbank filtration treatments in different types of wells

In the paper, a comparison of the efficiency of riverbank treatments is outlined for the Krajkowo well field, where dif- ferent methods of water abstraction are used. The water is extracted from 29 vertical wells that are located at a distance of 60–80 m from the channel of the River Warta and from a horizontal well with radial drains located 5 m below the bottom of the river. The results of a two-year water-quality investigation indicate that the water quality in both types of abstraction system is influenced by the quality of river water. The water quality observed in the horizontal well is closely similar to that of the river water, with similar concentrations of sulphates, nitrates and micropollutants, but a reduction in bacteriological contamination and plankton is clearly seen. The reduction in contaminants is mainly the result of physical processes, such as mechanical entrapment of suspended material and colloids as well as bacteria and plankton. In the vertical wells, the influence of contamination from river water is also visible, but the reduction in con- tamination is more significant, especially in cases of bacteria, plankton, micropollutants and nitrates, and is determined by both physical and chemical processes, such as sorption, dissolution, red-ox processes and denitrification. The present research shows that river water treatment is more effective in the case of vertical wells. The most favourable distance of a well from the channel of the river, from the perspective of water quality, is 150–200 m, which corresponds to a residence time of about six months

Assessment of metal concentrations in tap-water – from source to the tap: a case study from Szczecin, Poland

The concentrations of Al, As, Cd, Cu, Pb, Zn, Ni, Fe and Mn were determined in June 2010 for 100 tap-water samples, collected directly at consumers in the older part of the city of Szczecin (Poland). Increased concentrations of metals were thus detected. This concerns mainly Fe (19% of samples showed concentrations above drinking-water quality standards) and Pb (5%). In some samples, the maximum admissible concentration levels for Mn, Cu and Ni were also exceeded. This was not the case for Al, despite the use of aluminium compounds during water treatment; the Al con -centrations in treated water were, however, significantly higher than in raw water. It was also found that (1) the corrosive properties of water (low alkalinity and increased concentration of sulphates), (2) the water-treatment processes causing a decrease of the pH and an increase of the CO 2 , and (3) transport of the treated water over long distances (30 km) provide favourable conditions for the leaching of metals from water-pipe networks. The type of material used in domestic plumbing and the content of Ce, Fe, Mn, Ni and Cd in the tap-water at consumers show a correlation. The high content of Pb is mainly a result of lead pipes connecting the network to the buildings

Variant alleles of the CYP1B1 gene are associated with colorectal cancer susceptibility

<p>Abstract</p> <p>Background</p> <p>CYP1B1 is a P450 enzyme which is involved in the activation of pro-carcinogens to carcinogens as well as sex hormone metabolism. Because differences in the activity of the enzyme have been correlated with variant alleles of single nucleotide polymorphisms (SNPs), it represents an attractive candidate gene for studies into colorectal cancer susceptibility.</p> <p>Methods</p> <p>We genotyped 597 cancer patients and 597controls for three CYP1B1 SNPs, which have previously been shown to be associated with altered enzymatic activity. Using the three SNPs, eight different haplotypes were constructed. The haplotype frequencies were estimated in cases and controls and then compared. The odds ratio for each tumour type, associated with each haplotype was estimated, with reference to the most common haplotype observed in the controls.</p> <p>Results</p> <p>The three SNPs rs10012, rs1056827 and rs1056836 alone did not provide any significant evidence of association with colorectal cancer risk. Haplotypes of rs1056827 and rs10012 or rs1056827 and rs1056836 revealed an association with colorectal cancer which was significantly stronger in the homozygous carriers. One haplotype was under represented in the colorectal cancer patient group compared to the control population suggesting a protective effect.</p> <p>Conclusion</p> <p>Genetic variants within the CYP1B1 that are associated with altered function appear to influence susceptibility to a colorectal cancer in Poland. Three haplotypes were associated with altered cancer risk; one conferred protection and two were associated with an increased risk of disease. These observations should be confirmed in other populations.</p