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Number of results: 8
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Abstract

Założenia klasztorne na terenie Lublina mają bogatą historię. Pierwszy powstał już w XIV w. Z czasem do miasta sprowadzano kolejne zakony, dla których fundowano nowe miejsca pod zabudowę. Założenia lokowane poza murami miasta były otoczone pokaźnymi ogrodami. Do dóbr zakonnych należały także pola, łąki, folwarki, a nawet wsie. Przez szereg lat zakonnicy powiększali swoje włości, zabezpieczając w ten sposób finansowanie działalności, którą prowadzili. Po okresie świetności przychodzą ciężkie czasy konfliktów zbrojnych obejmujących Lublin. W tym okresie założenia klasztorne ulegają licznym zniszczeniom, część przekształcana jest na cele świeckie, a przylegające do nich ogrody są dzielone na mniejsze parcele, przeznaczane pod zabudowę lub są sprzedawane. Z istniejących w XVIII w. 18 klasztorów do czasów współczesnych przetrwało 14. Wszystkie są wpisane do Rejestru Zabytków Województwa Lubelskiego, a tylko 6 z nich stanowi do dzisiaj własność zakonów. Ogrody przy zachowanych obiektach różnią się powierzchnią i funkcją od tych z okresu swojej świetności. Ich obszar w obrębie miasta od XVIII w. do czasów współczesnych zmniejszyła się o ponad połowę. Cztery z nich uległy nie-wielkim przekształceniom, a w niezmienionej formie pozostały tylko wirydarze w 9 dawnych klasztorach. Pozostała zieleń pełni funkcje ogrodów przyszpitalnych, przykościelnych lub skwerów miejskich.
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Abstract

Due to insufficient operation efficiency, the studied treatment plant has undergone modernization. The aim of this study was to assess whether this modernization improved quality of the STP effluent and water quality in the receiver. The research period of fifty months covered time before and after the modernization. Samples were collected in four sites – upstream and downstream of the STP and by the sewage discharge. Electrolytic conductivity, water temperature and pH were measured onsite. Chemical analyzes were based on ion chromatography and determined the concentration of NH4+, NO3-, NO2-, PO43-, TDS. Microbiological analysis comprised serial dilutions to assess the number of mesophilic and psychrophilic bacteria and membrane filtration to enumerate E. faecalis, total and fecal coliforms as well as total and fecal E. coli. Values of most analyzed parameters did not improve after the modernization, or improved for a very short period of time (NH4+), while some of them even increased, such as PO43-, total and thermotolerant coliforms and E. coli. The maximum value of thermotolerant E. coli reached nearly 7 million CFU/100 ml and was observed after modernization. Also at the sites situated downstream of the STP some of analyzed parameters increased. The conducted modernization did not improve the quality of treated sewage and even a further deterioration was observed. It could have been a result of rapidly growing number of tourists visiting the studied area, thus generating large amounts of sewage causing STP overload coupled with poor water and wastewater management. Significant percentage of unregistered tourists hinders proper assessment of the STP target efficiency.
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Abstract

The possibility of scaling viscoelastic properties of starch solutions in relation to biopolymer concentration was presented in this study. An application of this empirical method enabled to widen the observation horizon of viscoelastic properties. It was also determined that the scope of its applicability is limited by amylose content in the solution. In high amylose solutions, for which up to 40% (w/w) concentration was the highest one obtained, calibration caused the formation of master curve in the widest frequency range. Determined values of scaling coefficients aC changed exponentially in starch concentration function in the solution. For waxy starch solutions of maximum concentration equal to 20% (w/w), scaling did not significantly widen the observation window. Based on master curves constructed in such way, continuous relaxation spectra H(λ) were determined using Tikhonov regularisation method. Their structure indicates advantageous of viscous elements in the process of viscoelastic phenomena formation.
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Abstract

Introduction: Clostridium difficile (C. difficile) is a Gram-positive, anaerobic rod-shaped bacteria, widely spread in the human environment. In the last decade, the frequency and severity of Clostridium difficile infection (CDI) have been increasing, making this particular disease one of the most significant nosocomial infections. The aim of our study was an analysis of CDI risk factors, its course and consequences. Materials and Methods: Medical documentation of the patients treated for CDI in the University Hospital in Cracow and St Anne’s Hospital in Miechów has been analysed. The analysis focused on epidemiological data, blood parameters, comorbidities, recurrence rate, and complication rate (deaths included). As part of risk factors analysis, antibiotic use or hospitalisation in a period of 3 months before the episode of infection was considered relevant. Blood tests have been performed using routinely employed, standard methods. Results: We evaluated data of 168 people infected with C. difficile, out of which there were 102 women (61%) and 66 men (39%). Th e median age of the patients was 74 years for the entire population with 76 years for women and 71 years for male patients. One hundred thirteen people (67%) had been previously hospitalised, and 5 person was a pensioner of a nursing home. 99 people (59%) were treated with antibiotics within 3 months before the first episode of infection. An average length of the hospital stay because of CDI was 11 days. One hundred thirty persons (77%) experienced only 1 episode whereas 38 people (23%) had more than 1 episode of infection. The person with the largest number of recurrences had 9 of them. Conclusions: The development of CDI is an increasing problem in a group of hospitalised persons, particularly of an old age. The general use of beta-lactam antibiotics is the cause of a larger number of infections with C. diffi cile. Vast majority of patients have had at least one typical risk factor of CDI development.
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