CE equivalence and shape equivalence of LCn compacta

AbstractIt is proved that each connected LCn+1 compactum X such that π1(X) is infinite admits a connected LCn compactum X′ which is shape equivalent but not UVn+1 equivalent, and a fortiori not CE equivalent, to X

Still Seeking for Something : The Unspeakable (Loss) in Passing by Nella Larsen

The paper analyzes Nella Larsen’s Passing (1929) through the lens of the theory of melancholy from Freud to Butler. Examining the dynamic relationship between Irene Redfield and Clare Kendry, two protagonists of Larsen’s novella, I attempt to demonstrate that under the surface of clearly expressed racial tensions, focused upon the dilemma of passing, there is a more deeply hidden problem - the one of gender identity and sexual desire

“An Unexpectedly Transgressive Subject of Twentieth-Century History”: How to Write (and Why to Read) about Communist Women Today

This review article discusses two newly-released publications on communist women activists: Kristen Ghodsee’s Red Valkyries: Feminist Lessons from Five Revolutionary Women and The Palgrave Handbook of Communist Women Activists around the World, edited by Francisca de Haan. It focuses on questions of narrative and the persuasive function of the reviewed works, asking how and for whom one should write about communist women today. It brings to light methodological challenges, as well as those related to access to sources on communist women. It also reflects on the place that publications which tell stories of communist women who challenged gender, class, and racial inequalities in the past occupy in the perception of contemporary readers, so often confronted in these times with experiences of inequality and violence

„Sztuki sceniczne według romantyków. Stendhal, Gautier, Nerval – krytycy muzyczni”

This article is the review of some critical articles of Stendhal, Gautier and Nerval which contain reports of operas, ballets and instrumental music concerts. The aim of this comparative analysis is to define the individual concepts of music and artist. The critics make their own ideal of music through the descriptions of the librettos, scenography and the abilities of the performers. The Stendhal’s remarks from Notes d’un Dilettante resulted from the idea of the modern beauty whereas the Gautier’s articles collected in Histoire de l’art dramatique… show the poet who is sensitive to the visual aspect of a performance and the critic who is open to the newness and dreaming of the harmony in art. Instead, in the Nerval’s press columns are visible the admiration for the music of the past age as well as the interest in the innovative schemes and the idea of the synthetic work which heralds the future art.Artykuł zawiera przegląd wybranych artykułów krytycznych Stendhala, Gautiera i Nervala, obejmujących sprawozdania z przedstawień operowych i baletowych oraz koncertów muzyki instrumentalnej. Celem analizy porównawczej jest określenie indywidualnych koncepcji muzyki i artysty. Poprzez opisy librett, zdolności wykonawców czy scenografii krytycy tworzą własny ideał sztuki. Uwagi Stendhala z Notatek Dyletanta wynikają z koncepcji nowoczesnego piękna. Artykuły Gautiera zebrane w Historii sztuki dramatycznej… znamionują poetę wrażliwego na wizualną stronę przedstawienia oraz krytyka otwartego na nowości i marzącego o harmonii w sztuce. W felietonach prasowych Nervala widoczny jest podziw dla muzyki epok minionych z jednoczesnym zainteresowaniem nowatorskimi pomysłami i ideą dzieła syntetycznego, która zwiastuje sztukę przyszłości

Facilitation of co-metabolic transformation and degradation of monochlorophenols by Pseudomonas sp. CF600 and changes in its fatty acid composition

In this study, co-metabolic degradation of monochlorophenols (2-CP, 3-CP, and 4-CP) by the Pseudomonas sp. CF600 strain in the presence of phenol, sodium benzoate, and 4-hydroxybenzoic acid as an additional carbon source as well as the survival of bacteria were investigated. Moreover, the changes in cellular fatty acid profiles of bacteria depending on co-metabolic conditions were analyzed. It was found that bacteria were capable of degrading 4-CP completely in the presence of phenol, and in the presence of all substrates, they degraded 2-CP and 3-CP partially. The highest 2-CP and 3-CP removal was observed in the presence of sodium benzoate. Bacteria exhibited three various dioxygenases depending on the type of growth substrate. It was also demonstrated that bacteria exposed to aromatic growth substrates earlier degraded monochlorophenols more effectively than unexposed cells. The analysis of fatty acid profiles of bacteria indicated the essential changes in their composition, involving alterations in fatty acid saturation, hydroxylation, and cyclopropane ring formation. The most significant change in bacteria exposed to sodium benzoate and degrading monochlophenols was the appearance of branched fatty acids. The knowledge from this study indicates that Pseudomonas sp. CF600 could be a suitable candidate for the bioaugmentation of environments contaminated with phenolic compounds

The territorial impacts of JESSICA projects in municipalities: evidence from the city of Poznań

This paper sets out to explore the contribution of JESSICA projects to enhancing the territorial cohesion of urban areas. We apply a slightly modified TARGET_TIA methodology to assess theterritorial impacts of those projects in the city of Poznań. It is found that the JESSICA projectsbrought about positive territorial effects in deprived urban areas, however, their impacts arequite varied. More exactly, the results demonstrate that projects which most closely addressedthe specific needs of the particular urban areas make the greatest contribution to improving theterritorial cohesion of a city. It is also suggested that the complexity of JESSICA projects shouldhave a higher priority in granting a JESSICA loan.Analiza prowadzona w niniejszym artykule miała na celu wykazanie, w jakim stopniu projekty JESSICA przyczynią się do poprawy spójności terytorialnej obszarów miejskich. W badaniu wykorzystano nieco zmodyfikowaną metodę TARGET_TIA stosowaną do oceny oddziaływania terytorialnego projektów. Badaniu poddano projekty JESSICA zrealizowane w Poznaniu. Wyniki wskazują, że w przypadku wszystkich projektów można dostrzec pozytywne efekty terytorialne, jednak ich oddziaływanie jest znacznie zróżnicowane. Projekty, które były najlepiej dopasowane do specyficznych potrzeb poszczególnych obszarów miejskich, w największym stopniu wypływają na poprawę spójności terytorialnej miasta. Wniosek ten pozwala twierdzić, że owo dopasowanie projektów powinno stanowić wyższy priorytet w procesie przyznawania pożyczki JESSICA

Changes in fatty acid composition of Stenotrophomonas maltophilia KB2 during co-metabolic degradation of monochlorophenols

The changes in the cellular fatty acid composition of Stenotrophomonas maltophilia KB2 during cometabolic degradation of monochlorophenols in the presence of phenol as well as its adaptive mechanisms to these compounds were studied. It was found that bacteria were capable of degrading 4-chlorophenol (4-CP) completely in the presence of phenol, while 2-chlorophenol (2-CP) and 3-chlorophenol (3-CP) they degraded partially. The analysis of the fatty acid profiles indicated that adaptive mechanisms of bacteria depended on earlier exposure to phenol, which isomer they degraded, and on incubation time. In bacteria unexposed to phenol the permeability and structure of their membranes could be modified through the increase of hydroxylated and cyclopropane fatty acids, and straight-chain and hydroxylated fatty acids under 2-CP, 3-CP and 4-CP exposure, respectively. In the exposed cells, regardless of the isomer they degraded, the most important changes were connected with the increase of the contribution of branched fatty acid on day 4 and the content of hydroxylated fatty acids on day 7. The changes, particularly in the proportion of branched fatty acids, could be a good indicator for assessing the progress of the degradation of monochlorophenols by S. maltophilia KB2. In comparison, in phenol-degrading cells the increase of cyclopropane and straight-chain fatty acid content was established. These findings indicated the degradative potential of the tested strain towards the co-metabolic degradation of persistent chlorophenols, and extended the current knowledge about the adaptive mechanisms of these bacteria to such chemicals

Transformer Reinforcement Learning for Procedural Level Generation

This paper examines how recent advances in sequence modeling translate for machine learning assisted procedural level generation. We explore the use of Transformer based models like DistilGPT-2 to generate platformer levels, specifically for the game Super Mario Bros., and explore how we can use reinforcement learning to push the model towards a task like generating levels that are actually beatable. We found that large language models (LLMs) can be used without any major modifications from the original NLP focused models to instead generate levels for the aforementioned game. However, the main focus of the research is connected to how advancement in the area of NLP by the use of reinforcement learning (RL) algorithms, specifically PPO, translates to the arena of procedural level generation in cases where the levels can be treated as token sequences. We did however not find any combinations of hyperparameters that allowed the PPO to reach higher better results than our baseline model trained for next token prediction. Despite it's success in the area of NLP, we failed to find a combination of hyperparameters that improved upon the level generation by applying an reward for the whole level. However there are methods that we did not try yet, like finding specific parts of the level to reward and penalize