Aspekty prawne planowania i zagospodarowania przestrzennego

Publikacja stanowi efekt badań naukowych prowadzonych wspólnie przez pracowników Katedry Publicznego Prawa Gospodarczego oraz Katedry Prawa Administracyjnego Wydziału Prawa i Administracji Uniwersytetu Mikołaja Kopernika w Toruniu. Książka zawiera analizę systemu prawnego planowania i zagospodarowania przestrzennego w Polsce, zarówno na szczeblu krajowym, regionalnym i lokalnym

A comprehensive approach to transdermal drug delivery through the skin: Ibuprofen derivatives in semi-solid formulations

Abstract. This article presents a comprehensive study on the formulation and evaluation of pharmaceutical emulsions for topical drug delivery. The research focused on emulsions containing ibuprofen and its derivatives (sodium and L-lysine propyl ester salts), investigating their solubility, consistency, stability, and skin permeation. The study offers valuable insights into the development of effective pharmaceutical products. Background. Transdermal and topical drug delivery is a promising approach for the treatment of various medical conditions. Pharmaceutical emulsions provide an ideal platform for delivering active substances through the skin. The selection of emulsion ingredients, consistency, and stability play a critical role in determining the suitability of these formulations. Aim of the study. The primary aim of this study was to formulate and evaluate pharmaceutical emulsions containing ibuprofen and other active substances. Key objectives included assessing solubility, consistency, stability, and skin permeation characteristics of the emulsions. The study aimed to provide insights into the development of effective topical drug delivery systems. Material and methods. Solubility tests were conducted to select suitable emulsion ingredients. Various emulsions were prepared with different water-to-oil phase ratios. Rheology modifiers were added to enhance consistency. Quality control assessments were performed, including uniformity, consistency, stability, density, viscosity, and particle size analysis. The release of active substances from the formulations and their penetration and accumulation in the skin were determined. Results. The results revealed variations in viscosity, consistency, and stability among different formulations. Emulsion-based preparations demonstrated the highest accumulation of active substances in the skin, with formulation F1 (5294.617 μg/g skin) exhibiting the most promising results. The highest release of ibuprofen was observed from the formulation based on Celugel with the addition of [LysOPr][IBU] (F6) - approximately 7750 μg IBU/cm2, and the highest penetration of the active substance was obtained for the emulsion with the addition of IBU∙Na (F2) - 3300 μg IBU/cm2 after 24 hours of testing. Conclusion. This comprehensive study on pharmaceutical emulsions for topical drug delivery provides critical insights into the formulation and evaluation of cosmetic and pharmaceutical products. The findings highlight the importance of ingredient selection, consistency, and stability in the development of effective emulsion-based formulations. Furthermore, the study suggests that emulsion-based preparations have potential for topical applications, especially for more hydrophilic active substances. Future research can build on these results to enhance drug delivery systems and improve patient outcomes

Prevalence, risk factors and treatment of arterial hypertension in dwellers of Boguszyce village

Wstęp Nadciśnienie tętnicze jest jednym z podstawowych czynników ryzyka chorób krążenia zwłaszcza wśród mieszkańców wsi. Celem obecnej pracy była ocena częstości występowania, czynników ryzyka oraz leczenia nadciśnienia tętniczego wśród mieszkańców wsi Boguszyce w powiecie oleśnickim na Dolnym Śląsku.Materiał i metody Badania przeprowadzono u dorosłych mieszkańców wsi Boguszyce. Badania przeprowadzali przeszkoleni studenci medycyny i lekarze, odwiedzający mieszkańców wsi w ich domach. Badanie obejmowało pomiar masy ciała, wzrostu oraz dwukrotny pomiar ciśnienia tętniczego metodą Korotkowa. Ponadto przeprowadzono badanie ankietowe, którego celem była ocena wiedzy na temat nadciśnienia tętniczego oraz współistniejących czynników ryzyka. Wyniki Badania antropometryczne i ankietowe przeprowadzono u 409 osób, czyli 50% dorosłych mieszkańców Boguszyc. U pozostałych mieszkańców nie wykonano badań z powodu nieobecności w domu (3-krotna próba) lub braku zgody na badania. Wśród badanych mężczyźni stanowili 40,83%, a kobiety 59,17%. Nadciśnienie tętnicze stwierdzono u 51% mieszkańców, z czego 53% wcześniej nie miało rozpoznanego nadciśnienia. Średni wskaźnik masy ciała (BMI) badanej grupy wynosił 27,25 i był istotnie wyższy u chorych z nadciśnieniem tętniczym niż u zdrowych (30,5 vs. 24; p < 0,001). Wśród osób leczonych 68% przyjmowało przepisane leki, a 18,5% było leczonych skutecznie. Wśród przepisywanych leków przeważały &#946;-adrenolityki, inhibitory konwertazy angiotensyny i diuretyki. Zwracał uwagę brak substytucji potasem mimo częstego stosowania leków moczopędnych. Wnioski Wśród mieszkańców wsi Boguszyce odsetek chorych na nadciśnienie tętnicze jest znacznie wyższy niż średnia w Polsce. Wśród chorych na nadciśnienie tętnicze występuje rozbieżność między subiektywną a obiektywną oceną skuteczności leczenia. Przyczyną niskiego odsetka skuteczności leczenia nadciśnienia tętniczego jest między innymi nieprzestrzeganie zaleceń lekarskich oraz styl życia i nawyki żywieniowe mieszkańców Boguszyc.Background Arterial hypertension is the most common cardiovascular risk factor especially in village dwellers. The aim of the study was to estimate the prevalence and risk factors of arterial hypertension in dwellers of the village of Boguszyce in Oleśnica district in Lower Silesia. Material and methods The study group consisted of dwellers of the village of Boguszyce. Examinations were carried out by the trained medical students and physicians visiting village dwellers at their homes. They determined the body mass, height, and measured blood pressure two times based on the Korotkov method. A custom questionnaire was carried out to determine medical history and coexisting risk factors. Results Examinations were carried out in 409 persons (50% of adult village population). The remaining half of village population was not examined due to following reasons: absence at home (3 separate visits), lack of consent. The studied group consisted of 40.83% men and - 59.17% women. Arterial hypertension was diagnosed in 51% of studied population; 53% of this group was not diagnosed earlier with AH. Mean BMI in the study group was 27.25 and was significantly higher in adults with hypertension (30.5 vs. 24; p < 0.001). 68% of adults treated for hypertension took prescribed medications but only 18.5% were treated succesfully. Main presribed antihypertensives were betablockers, ACEI and diuretics. In spite of frequent use of diuretices potassium substitution was rare. Conclusions Arterial hypertension is more common in village dwellers than in general polish population. There is significant discrepancy between perception of treatment results and objective hypertension control. The noncompliance to physicians&#8217; recommendations, the life style and eating habits of the dwellers of Boguszyce, resulting in low physical activity and high percentage of overweight are the chief reasons for high prevalence and low effectiveness of the treatment of hypertension

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Księga poświęcona Profesorowi Hieronimowi Kubiakowi w 75. rocznicę urodzin. Tom ofiarowany przez przyjaciół i uczniów

Non-uniform coupling model of the frustrated chromium-based ring Cr

A numerically exact spin-Hamiltonian approach has been proposed for the frustrated Cr8Ni molecule. The non-uniform exchange couplings parameters, improving the fit of the experimental magnetic susceptibility data, have been obtained, using a genetic algorithm search procedure. The energy intervals between the lowest multiplets, relevant for envisaged transitions observable in the INS spectra, have been determined and the critical fields corresponding to the first-level crossing have been estimated in agreement with experiment

Non-uniform coupling model of the frustrated chromium-based ring Cr8Ni

A numerically exact spin-Hamiltonian approach has been proposed for the frustrated Cr8Ni molecule. The non-uniform exchange couplings parameters, improving the fit of the experimental magnetic susceptibility data, have been obtained, using a genetic algorithm search procedure. The energy intervals between the lowest multiplets, relevant for envisaged transitions observable in the INS spectra, have been determined and the critical fields corresponding to the first-level crossing have been estimated in agreement with experiment

Exploring Alkyl Ester Salts of L-Amino Acid Derivatives of Ibuprofen: Physicochemical Characterization and Transdermal Potential

This research presents novel ibuprofen derivatives in the form of alkyl ester salts of L-amino acids with potential analgesic, anti-inflammatory, and antipyretic properties for potential use in transdermal therapeutic systems. New derivatives of (RS)-2-[4-(2-methylpropyl)phenyl]propionic acid were synthesized using hydrochlorides of alkyl esters (ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, and pentyl) of L-glutamine. These were further transformed into alkyl esters of L-amino acid ibuprofenates through neutralization and protonation reactions. Characterization involved spectroscopic methods, including nuclear magnetic resonance and Fourier-transform infrared spectroscopy. Various physicochemical properties were investigated, such as UV–Vis spectroscopy, polarimetric analysis, thermogravimetric analysis, differential scanning calorimetry, X-ray diffraction, water solubility, octanol/water partition coefficient, and permeability through pig skin using Franz diffusion cells. The research confirmed the ionic structure of the obtained hydrochlorides of alkyl esters of L-amino acids and ibuprofenates of alkyl esters of L-glutamic acid. It revealed significant correlations between ester chain length and thermal stability, crystallinity, phase transition temperatures, lipophilicity, water solubility, skin permeability, and skin accumulation of these compounds. Compared to the parent ibuprofen, the synthesized derivatives exhibited higher water solubility, lower lipophilicity, and enhanced skin permeability. This study introduces promising ibuprofen derivatives with improved physicochemical properties, highlighting their potential for transdermal therapeutic applications. The findings shed light on the structure–activity relationships of these derivatives, offering insights into their enhanced solubility and skin permeation, which could lead to more effective topical treatments for pain and inflammation

Alkalizing Properties of Six Calcium-Silicate Endodontic Biomaterials

Introduction: Calcium silicate-based cements (CSC), are self-setting hydraulic biomaterials widely used for reparative procedures in dentistry and endodontics. These materials possess physical properties, such as ion release, porosity, solubility, and radiopacity. Their biological properties are connected to their alkalizing activity and calcium release capacity. Materials and Methods: Six calcium silicate-based materials were selected for this study: TheraCal LC (Bisco Inc., Schaumburg, IL, USA), MTA Plus (PrevestDenpro, Jammu, India Avalon Biomed Inc., Bradenton, FL, USA), Biodentine (Septodont, Saint-Maur-des-Foss&eacute;s, France), RetroMTA (BioMTA, Seoul, Korea), MTA Flow (Ultradent Products, Inc., South Jordan, UT, USA), and OrthoMTA (BioMTA, Seoul, Korea). The pH was analyzed immediately after immersion (baseline) and after 1 h, 3 h, 1 day, 2 days, 3 days, 1 week, 2 weeks, 3 weeks, and 1 year with a pH meter, previously calibrated with solutions of known pH. All testing materials had alkaline pH. Results: Analysis of the tested materials showed statistically significant differences in terms of pH changes as a function of the time showed a gradual rise in the pH of all materials. Conclusions: All tested materials exhibited continuous hydroxyl ion release resulting in a rise in pH until the end of time of experience

Comparison of Mechanical and Barrier Properties of Al2O3/TiO2/ZrO2 Layers in Oxide-Hydroxyapatite Sandwich Composite Coatings Deposited by Sol-Gel Method on Ti6Al7Nb Alloy

In this study, coatings of different oxides (TiO2, Al2O3, ZrO2) and hydroxyapatite (HAp) as well as sandwich composite hydroxyapatite with an oxides sublayer (oxide+HAp) were deposited on Ti6Al7Nb alloy using the sol-gel dip-coating method. The coatings were characterized in terms of morphology (optical microscope), surface topography (AFM), thickness (ellipsometry), and crystal structure (XRD/GIXRD). The mechanical properties of the coatings-hardness, Young's modulus, and adhesion to the substrate-were examined using nanoindentation and scratch tests. The barrier properties of the coatings against the migration of aluminum ions were examined by measuring their concentration after soaking in Hank's balanced salt solution (HBSS) with the use of optical emission spectrometry of inductively coupled plasma (ICPOES). It was found that all the oxide and HAp coatings reduced the permeation of Al ions from the Ti6Al7Nb alloy substrate. The best features revealed an Al2O3 layer that had excellent barrier properties and the best adhesion to the substrate. Al2O3 as a sublayer significantly improved the properties of the sandwich composite HAp coating