Comparative analysis of astaxanthin and its esters in the mutant E1 of Haematococcus pluvialis and other green algae by HPLC with a C30 column

A gradient reversed-phase high-performance liquid chromatography (HPLC) method using a C30 column was developed for the simultaneous determination of astaxanthin, astaxanthin monoesters and astaxanthin diesters in the green algae Chlorococcum sp., Chlorella zofingiensis, Haematococcus pluvialis and the mutant E1, which was obtained from the mutagenesis of H. pluvialis by exposure to UV-irradiation and ethyl methanesulphonate (EMS) with subsequent screening using nicotine. The results showed that the contents of total astaxanthins including free astaxanthin and astaxanthin esters ranged from 1.4 to 30.9 mg/g dry biomass in these green algae. The lower total astaxanthin levels (< 2 mg/g dry biomass) were detected in the green algae Chlorococcum sp. and C. zofingiensis. The higher total astaxanthin levels (> 16 mg/g dry biomass) were found in the green alga H. pluvialis and its mutant E1. It is notable that the mutant E1 is found to have considerably higher amounts of total astaxanthin (30.9 mg/g) as compared to the wild strain of H. pluvialis (16.1 mg/g). This indicates that UV-irradiation and EMS compound mutagenesis with subsequent screening using nicotine is an effective method for breeding of a high-producing astaxanthin strain of H. pluvialis. In addition, the green alga C. zofingiensis had a remarkably higher percentage of astaxanthin diesters (76.3% of total astaxanthins) and a remarkably lower percentage of astaxanthin monoesters (18.0% of total astaxanthins) in comparison with H. pluvialis (35.5% for diesters and 60.9% for monoesters), the mutant E1 (49.1% and 48.1%) and Chlorococcum sp. (18.0% and 58.6%).

William Hope Hodgson's borderlands: monstrosity, other worlds, and the future at the fin de siècle.

William Hope Hodgson has generally been understood as the author of several atmospheric sea-horror stories and two powerful but flawed horror science fiction novels. There has been no substantial study analysing the historical and cultural context of his fiction or its place in the Gothic, horror, and science fiction literary traditions. Through analysing the theme of borderlands, this thesis contextualises Hodgson’s novels and short stories within these traditions and within late Victorian cultural discourse. Liminal other world realms, boundaries of corporeal monstrosity, and the imagined future of the world form key elements of Hodgson’s fiction, reflecting the currents of anxiety and optimism characterising fin-de-siècle British society. Hodgson’s early career as a sailor and his interest in body-building and physical culture colour his fiction. Fin-de-siècle discourses of evolution, entropy, spiritualism, psychical research, and the occult also influence his ideas. In The House on the Borderland (1908) and The Night Land (1912), the known world brushes against other forms of reality, exposing humanity to incomprehensible horrors. In The Ghost Pirates (1909), the sea forms a liminal region on the borderland of materiality and immateriality in which other world encounters can take place. In The Night Land and The Boats of the ‘Glen Carrig’ (1907), evolution gives rise to strange monstrous forms existing on the borderlines of species and identity. In Hodgson’s science fiction—The House on the Borderland and The Night Land—the future of the earth forms a temporal borderland of human existence shaped by fin-de-siècle fears of entropy and the heat-death of the sun. Alongside the work of other writers such as H. G. Wells and Arthur Machen, Hodgson’s four novels respond to the borderland discourses of the fin de siècle, better enabling us to understand the Gothic literature of the period as well as Hodgson’s position as a writer who offers a unique imaginative perspective on his contemporary culture.

Prawda - istina w horyzoncie anthropos w myśli rosyjskiego renesansu religijno-filozoficznego

Wydział Nauk Społecznych: Instytut Filozofii

Etnogeneza Słowian w świetle badań kopalnego DNA

Wydział Biologii: Instytut Antropologii

Demokratyzacja kultury współczesnej

Wydział Historyczny: Instytut Etnologii i Antropologii Kulturowej

Masturbacja w świetle katolickiego spojrzenia na ludzką płciowość

Masturbacja jako zagadnienie naukowe nadal budzi kontrowersje. Autor niniejszego artykułu prezentuje ten temat w szerokim kontekście współczesnej psychologii, pedagogiki i innych dyscyplin wiedzy zajmujących się ludzką egzystencją. Moralny wymiar masturbacji musi być rozpatrywany świetle problematyki ludzkiego bycia, ponieważ tylko w takiej perspektywie można stworzyć uzasadnioną opinię o tej delikatnej kwestii.

O antropomorfizowaniu i potrzebie przedstawień figuralnych w sztuce greckiej

Estetyka w archeologii. Antropomorfizacje w pradziejach i starożytności, eds. E. Bugaj, A. P. Kowalski, Poznań: Wydawnictwo Poznańskie.

Badania archeologiczne a obrazowanie wizualne przeszłości

One can say that our times are dominated by visual communication. Usually all day long we have been faced by various pictures, visual forms and symbols. According to the subject of the book 'Archaeology-Culture-Ideologies' I found it interesting to pay attention to the problem of visual representation, or better say visual symbols in nowadays communication and culture, their meaning and importance. From this point of view I would like to show the role of archaeologists who discover, interpret or even create some of them. The subject is not new of course, but the most often it is taken into consideration by the scholars who practice in social anthropology or philosophy and quite rarely it appear in studies of archaeologies, especially in Polish tradition. In my opinion the subject concerning visual symbols communication and archaeology arise several important questions that are also valid for the theme of book 'Archaeology-Culture-Ideologies'. The first is socio-cultural role of our discipline, next the danger of political and propaganda misuse of the results of archaeological research and then also commercialisation of the archaeological activities. The problem of visualisation and visual-communication can be the matter of various studies. In my paper from the beginning I would like to present the general view concerning visual symbols and figural motifs and the main ideas and approaches to study them from different humanistic perspectives. Then in my presentation I am going to discuss the question why in our culture the visual symbols and representations became so popular – compare to other ways of human expression, for example verbal symbol communication. I would like to see the problem in historical perspective as well. There are a lot of evidences, which support the statement about the power of visual symbols in history. In ancient times for example Horace in 'Ars Poetica' suggested that human mind usually is much more impressed by eyes than by ears. In my opinion that is quite often in human culture that visual impression is before mental one. Visual representations and symbols are very powerful, they can show and communicate various phenomena, they act immediately and quite often in easily way they can associate. So for archaeological research it could be very important to make some studies concerning the ancient symbols and general iconography and also it would be grateful to make some attempts for the study what kind of potential meaning could have visual symbols. In my paper I can only make some general statement about it. But the most important for the topic is reflection on prehistoric and ancient visual symbols and representation and their presence in contemporary culture. So after some general statements concerning the visual symbols examined from various perspectives finally I would like to point out with support of some examples how ancient and prehistoric visual symbols and images are still used and captured by contemporary culture and what is or should be the role of archaeologists activity concerning this matter.

Polskie tradycje muzyczne na południowo-wschodniej Syberii i ich rola w kształtowaniu tożsamości narodowo-etnicznej

Wydział Historyczny: Katedra Muzykologii

Ziołolecznictwo w medycynie komplementarnej Polonii argentyńskiej z prowincji Misiones. Studium z zakresu etnobotaniki medycznej

Wydział Historyczny: Instytut Etnologii i Antropologii Kulturowej

Interpretacja myśli Pseudo-Dionizego w wybranych dziełach Grzegorza Palamasa

Wydział Nauk Społecznych