Spatial and functional aspects of the night-time economy in historic cities: a case study of the Kazimierz district (Kraków, Poland)

Historic cities constitute a special category of urban area in Poland. Due to their cultural potential, tourism and related sectors are currently becoming an important development direction. One such sector is their night-time economy, identified on the basis of a time criterion (21:00-5:00), and a functional criterion (understood as all activities that meet people’s broad leisure needs outside their home during the night). The aim of the article is to describe the night-time economy in one historical central district of Kraków – Kazimierz. The authors, based on a field inventory conducted in 2019, and interviews with representatives of the local community, have illustrated the spatial and functional aspects of this phenomenon.Miasta historyczne stanowią szczególną kategorię ośrodków miejskich w Polsce, a z uwagi na potencjał kulturowy ważnym kierunkiem ich rozwoju staje się współcześnie turystyka i sektory z nią powiązane. Jednym z takich sektorów jest tzw. gospodarka nocna (ang. night-time economy, w skrócie NTE) identyfikowana na podstawie kryterium dostępności czasowej (21:00–5:00) i kryterium funkcjonalnego (jako ogół działalności zaspokajających szeroko rozumiane potrzeby wolnoczasowe ludzi poza ich domem w porze nocnej). Celem artykułu jest charakterystyka gospodarki nocnej w historycznej dzielnicy śródmiejskiej Krakowa – Kazimierzu. Autorzy, opierając się na przeprowadzonej w 2019 r. inwentaryzacji terenowej oraz wywiadach z przedstawicielami lokalnej społeczności, zobrazowali przestrzenne i funkcjonalne aspekty tego zjawiska

Self-management and integrated pulmonary care as an essential part of treatment of patients with chronic obstructive pulmonary disease

Chronic obstructive pulmonary disease (COPD) is a common, chronic and progressive disease that is a major public health problem worldwide. Treatment for stable COPD relies on pharmacological and non-pharmacological procedures. Education, self-management interventions and personalized pulmonary rehabilitation should be part of chronic care for patients with COPD at all stages of their disease.The comprehensive care should be provided by integrated pulmonary care based on pulmonary centers and a multidisciplinary team to all patients with COPD. Holistic approach to the patient with COPD and his involvement in therapy and working closely with healthcare professionals will improve quality of life of COPD patients. It also modifies the course of the disease, prevents progression and may reduce the frequency of exacerbations. In this article, we present the proposed model of integrated pulmonary care, structures necessary for multidisciplinary treatment and self-management intervention as essential elements in the treatment of patients with COPD

Histone dependent signalization during pharmacotherapy of chronic obstructive pulmonary disease

Przewlekła obturacyjna choroba płuc (POChP) jest czwartą co do częstości przyczyną zgonów na świecie. Molekularne mechanizmy odpowiadające za rozwój choroby nie zostały dotychczas poznane, ale wiadomo, że u podłoża POChP leży przewlekły proces zapalny i stres oksydacyjny/nitrozacyjny spowodowany paleniem tytoniu. Wyniki ostatnich badań wskazują, że zaburzenia funkcji histonów, które prowadzą, poprzez wzrost transkrypcji genów, do syntezy cytokin prozapalnych, mogą odgrywać zasadniczą rolę w patomechanizmie choroby. Reakcje acetylacji i deacetylacji histonów wpływają na ich aktywność transkrypcyjną, a zmiany intensywności tych reakcji, wywołane przez leki, mogą stanowić interesujące pole do dalszych badań. W artykule autorzy prezentują aktualne opinie na temat roli steroidów jako inhibitorów stanu zapalnego, jak również zjawiska steroidooporności. Wyniki badań, w których oceniano aktywność przeciwzapalną i zdolność do hamowania stresu oksydacyjnego takich leków, jak teofilina i N-acetylocysteina, mogą prowadzić do zastosowania tych leków w leczeniu przyczynowym POChP, jednakże obserwacje te wymagają potwierdzenia w przebiegu dalszych badań.Chronic obstructive pulmonary disease (COPD) is a 4th major cause of morbidity and mortality worldwide. Cigarette smoking and oxidative/nitrosative stress leading to chronic inflammation is considered as a major cause of COPD but up to now, details of molecular pathways responsible for development of disease are unknown. Recent reports indicate the role of disruption in histone function in promoting synthesis of inflammatory cytokines through increased gene transcription which underlies disease development. Core histone acetylation/deacetylation regulate their transcription activity and drug induced changes of its intensity may be an interesting field of further research. In this article the opinions about the role of steroids as inhibitors of the inflammatory process as well as resistance to steroids have been presented. Findings from studies which aimed to explore the anti-inflammatory activity of drugs such as theophylline and N-acetylcysteine and their ability to suppress oxidative stress may suggest the usefullness of these drugs in causative treatment of COPD. However, further studies are necessary to confirm these findings

Posttranslational p53 phosphorylation in non small cell lung cancer cells after radio/chemotherapy

Wstęp: Jednym z najważniejszych regulatorów cyklu komórkowego i apoptozy jest białko p53. Wiele czynników zmienia ekspresję tego białka i modyfikuje jego funkcje. Celem badań autorów było określenie stabilności i wybranych potranslacyjnych modyfikacji białka p53 w przebiegu terapii raka płuca. Materiał i metody: Oceniano zmiany ilości markera uszkodzenia DNA - poli-ADP-rybozy, ploidię DNA, ekspresję antygenu proliferacyjnego Ki-67, ekspresję natywnego i zmutowanego p53 oraz intensywność reakcji fosforylacji wybranych reszt serynowych tego białka, C-końcowej Ser392 i N-końcowych Ser15 i Ser20 w próbkach pobranych w trakcie bronchoskopii chorych na nawrotowego niedrobnokomórkowego raka płuca przed radio- i chemioterapią i po niej. Badania objęły 23 pacjentów będących po zabiegu chirurgicznym w stadiach I-IIIA.Wyniki: Terapia obniżyła liczbę komórek będących w fazie G2/M, ale zwiększyła frakcję komórek w fazie S o około 50%. Zwiększyła także ekspresję białka p53 oraz ilość białka fosforylowanego w pozycjach Ser392 i Ser20, a zmiany te korelowały ze zmianami ilości poli-ADP-rybozy i ekspresją Ki-67. Wnioski: Uzyskane przez autorów wyniki wskazują, że oprócz zmian ekspresji białka p53 jego potranslacyjna fosforylacja uczestniczy w regulacji proliferacji komórek nowotworowych pod wpływem leków.Introduction: p53 protein is a critical regulator of cell cycle and apoptosis. Many stimuli change its expression and modify its functions. The aim of our work was to determine stability and chosen posttranslational modification of p53 protein during the treatment of lung cancer. Material and methods: We investigated levels of poly-ADP-ribose- a marker of cellular DNA damage, DNA ploidy, Ki-67 expression, wild type and mutated p53 protein expression and intensity of phosphorylation of chosen p53 serine sites: C-terminal Ser392, and N-terminal Ser15, and Ser20 in fiberoptic bronchoscopy biopsy samples taken from patients suffering from recurrent squamous cell lung cancer before and after radio/chemotherapy. Analysis was based on results obtained from 23 patients after surgery in I-IIIA clinical stage of the disease. Results: Therapy lowered the number of G2/M cells, but increased S fraction cell population in about 50%. Therapy increased p53 expression and p53 phosphorylation at Ser392 and Ser20, and these changes correlated with poly-ADP-ribose levels and Ki-67 expression. Conclusions: Our results indicate that apart from changes in p53 quantity, p53 posttranslational phosphorylation play a role in regulation of neoplastic cells proliferation in response to drugs

Kilonova Luminosity Function Constraints Based on Zwicky Transient Facility Searches for 13 Neutron Star Merger Triggers during O3

We present a systematic search for optical counterparts to 13 gravitational wave (GW) triggers involving at least one neutron star during LIGO/Virgo's third observing run (O3). We searched binary neutron star (BNS) and neutron star black hole (NSBH) merger localizations with the Zwicky Transient Facility (ZTF) and undertook follow-up with the Global Relay of Observatories Watching Transients Happen (GROWTH) collaboration. The GW triggers had a median localization area of 4480 deg², a median distance of 267 Mpc, and false-alarm rates ranging from 1.5 to 10⁻²⁵ yr⁻¹. The ZTF coverage in the g and r bands had a median enclosed probability of 39%, median depth of 20.8 mag, and median time lag between merger and the start of observations of 1.5 hr. The O3 follow-up by the GROWTH team comprised 340 UltraViolet/Optical/InfraRed (UVOIR) photometric points, 64 OIR spectra, and three radio images using 17 different telescopes. We find no promising kilonovae (radioactivity-powered counterparts), and we show how to convert the upper limits to constrain the underlying kilonova luminosity function. Initially, we assume that all GW triggers are bona fide astrophysical events regardless of false-alarm rate and that kilonovae accompanying BNS and NSBH mergers are drawn from a common population; later, we relax these assumptions. Assuming that all kilonovae are at least as luminous as the discovery magnitude of GW170817 (−16.1 mag), we calculate that our joint probability of detecting zero kilonovae is only 4.2%. If we assume that all kilonovae are brighter than −16.6 mag (the extrapolated peak magnitude of GW170817) and fade at a rate of 1 mag day⁻¹ (similar to GW170817), the joint probability of zero detections is 7%. If we separate the NSBH and BNS populations based on the online classifications, the joint probability of zero detections, assuming all kilonovae are brighter than −16.6 mag, is 9.7% for NSBH and 7.9% for BNS mergers. Moreover, no more than 10⁻⁴, or φ > 30° to be consistent with our limits. We look forward to searches in the fourth GW observing run; even 17 neutron star mergers with only 50% coverage to a depth of −16 mag would constrain the maximum fraction of bright kilonovae to <25%

Numerical and Physical Simulation of MAG Welding of Large S235JRC+N Steel Industrial Furnace Wall Panel

This paper presents the results of a study on the development of a Metal active gas (MAG) welding technology for an industrial furnace component made of steel S235JRC+N with respect to the minimizationof welding deformation. A numerical simulation of the welding process was performed in the first phase of the research. The numerical simulation was carried out with the SYSWELD software. For the numerical simulation of the welding process, the FEM method was used. In the simulation, four variants of restraint of the industrial furnace wall panel elements during the execution of the welding process were investigated. They differed in the number of restraints (model 1–4). It was found that the difference between the maximum mean strain in model 1 and the lowest mean strain in model 4 was only 11%. A physical simulation of the welding process was then performed with a restraint variant according to model 1. The displacement results obtained from the physical simulation of the welding process were compared with the displacement results from the numerical simulation. Discrepancies between numerical and physical simulation displacement values were found. The quality of selected welded joints was also evaluated. Visual testing (VT) and measurements of weld geometries were performed for this purpose. Metallographic tests and hardness measurements were performed to determine of influence of the welding process on the microstructure of the welded joint area, especially the heat affected zone (HAZ). The results obtained confirm the correctness of the assumptions made regarding the technology of manufacturing the furnace wall panels

Impact of COVID-19 in Patients with Lung Cancer: A Descriptive Analysis

The COVID-19 pandemic poses a challenge to health systems worldwide. Limiting healthcare availability may delay early diagnosis and worsen the treatment effects of various diseases, including oncological diseases. We analyzed patients presenting to the 2nd Department of Lung Diseases and Tuberculosis in Białystok, Poland, with suspicion of lung cancer 12 months prior to the COVID-19 pandemic (pre-COVID-19) and, similarly, 12 months after the outbreak of the pandemic (mid-COVID). In total, 320 patients were analyzed—132 prior to and 188 after the COVID-19 outbreak. During the COVID-19 period, there was a lower percentage of patients presenting with ECOG performance status 0-1, with a noticeably increased percentage of patients with ECOG PS ≥2. The disease’s clinical stage (CS) was higher on admission during COVID-19. We observed more use of immunotherapy and more deaths before the start of treatment during the COVID-19 period. These results provide insight into the early effects of the COVID-19 pandemic on lung cancer patients and underscore the importance of conducting further studies to assess the long-term effects of the COVID-19 pandemic on this population

Smoking cessation and vaping cessation attempts among cigarette smokers and e-cigarette users in Central and Eastern Europe

Our aim is to assess the smoking cessation and vaping cessation activity, including quit attempts and willingness to quit among university students in Central and Eastern Europe, as well as to investigate personal characteristics associated with smoking cessation and vaping cessation attempts. Data were collected by questionnaire which included 46 questions on cigarette and e-cigarette use. Questionnaires were obtained from 14,352 university students (aged 20.9 ± 2.4 years; cooperation rate of 72.2%). For the purposes of this analysis, only data from exclusive cigarette smokers (n = 1716), exclusive e-cigarette users (n = 129), and dual users (216) were included. Of all cigarette smokers, 51.6% had previously tried to quit smoking and 51.5% declared a willingness to quit cigarette smoking in the near future. Among all e-cigarette users only 13.9% had ever tried to quit using the e-cigarette and 25.2% declared a willingness to give up using e-cigarette in the near future. The majority of the group did not use pharmacotherapy to quit cigarette (87.5%) or e-cigarette (88.9%) use. Our results indicate that while most university students have some desire to quit conventional smoking, those who use e-cigarettes do not have the same desire