Statistical properties and statistical interaction for particles with spin: Hubbard model in one dimension and statistical spin liquid

We derive the statistical distribution functions for the Hubbard chain with infinite Coulomb repulsion among particles and for the statistical spin liquid with an arbitrary magnitude of the local interaction in momentum space. Haldane's statistical interaction is derived from an exact solution for each of the two models. In the case of the Hubbard chain the charge (holon) and the spin (spinon) excitations decouple completely and are shown to behave statistically as fermions and bosons, respectively. In both cases the statistical interaction must contain several components, a rule for the particles with the internal symmetry.Comment: (RevTex, 16 pages, improved version

Walory przyrodnicze pasa autostrady A-4 na terenie Parku Krajobrazowego Góra Świętej Anny w województwie opolskim

Construction of the A-4 Motorway section in the Opole Region begun in Summer 1997. Very soon vigorous resistance of ecological NGOs was encountered. The bone of contention was the section of motorway that passes through the Góra Świętej Anny Landscape Park and verges the natural reserve of strict protection Ligota Dolna where rare species of thermophilic plants are sheltered. Between 2011 and 2013 a detailed mycological, geobotanical, floristic and fauna research took place within the right-of-way of the A-4 Motorway section crossing the Góra Świętej Anny Landscape Park in the Opole Region. The survey revealed several rare and protected species of fungi, plants and animals along the road, including the greatest in Poland population of Austrian flax Linum austriacum. The area also harbors the only site of xerothermic grass of Festuco-Brometea class with so many rare and putrefying plant species inside a motorway’s right-of-way in Poland. Given the occurrence of many interesting species of plants and animals in the motorway surrounding it seems justified to establish a system of ecological monitoring, which could provide a range of valuable findings regarding the impact of motorway traffic on surrounding flora and fauna. This knowledge would be very useful for all those involved in construction of next motorways in Poland as well as for a wide circle of interested researchers.Do budowy opolskiego odcinka autostrady A-4 przystąpiono latem 1997 r. Niedługo po rozpoczęciu budowy zaczęły się ostre protesty organizacji ekologicznych. Kością niezgody stał się jej odcinek przecinający Park Krajobrazowy Góra Świętej Anny, bezpośrednio sąsiadujący również ze ścisłym rezerwatem przyrody Ligota Dolna, chroniącym rzadką roślinność ciepłolubną. W latach 2011-2013 na terenie pasa drogowego autostrady A4 przechodzącego przez teren Parku Krajobrazowego Góra Świętej Anny w województwie opolskim przeprowadzono szczegółowe badania mikologiczne, geobotaniczne, florystyczne i faunistyczne. Na tym odcinku autostrady stwierdzono występowanie licznych rzadkich i chronionych gatunków grzybów, roślin oraz zwierząt, w tym najliczniejszą w Polsce populację lnu austriackiego Linum austriacum. Jest to również jedyne stanowisko muraw kserotermicznych z klasy Festuco-Brometea, z tak licznym występowaniem rzadkich i ginących gatunków roślin w pasie autostrady w Polsce. Ze względu na pojawianie się na trasie autostrady wielu interesujących gatunków roślin i zwierząt, wydaje się celowe utworzenie monitoringu przyrodniczego, który mógłby dostarczyć wielu cennych informacji dotyczących wpływu autostradowego ruchu samochodowego na okoliczną florę i faunę. Z wiedzy tej mogliby korzystać nie tylko budowniczowie kolejnych autostrad w Polsce, ale również szerokie grono zainteresowanych naukowców

Current distribution of Pilularia globulifera L. in Poland : changes of geographical range and habitat preferences

Pilularia globulifera is a subatlantic European fern threatened with extinction. In Poland, it reaches the eastern border of its continuous range. Up to the end of the 20th century, it was observed here in 21 stands; only 2 of them existed by the second half of the century, so the species was categorized as critically endangered. Five new locations have been found in western and northwestern Poland during the last 10 years. Abundant and permanent populations grow in 3 locations, while 2 stands were ephemeral. All the current stands are situated in anthropogenic habitats with spontaneous vegetation, in oligotrophic to eutrophic waters. One of the new localities is about 280 km distant from the eastern range of the limit known previously. Pilularia forms its own plant community Pilularietum globuliferae, enters plots of Ranunculo-Juncetum bulbosi and occurs in mesotrophic to eutrophic rushes of Eleocharis palustris, Phragmites australis, Typha angustifolia and Equisetum fluviatile. Specimens are vigorous and regularly produce sporocarps

Feasibility of up-front autologous stem cell transplantation for high risk diffuse large B-cell lymphoma – non-randomized analysis of 58 consecutive patients

IntroductionHigh-dose chemotherapy supported by autologous stem cell transplantation (ASCT) continues to be a standard of care for relapsed diffuse large B-cell lymphoma (DLBCL) and may be considered as a frontline consolidation for a proportion of patients with high-risk features. AimWe evaluated the feasibility and safety of ASCT for high-risk DLBCL who are in first complete remission after standard treatment with chemotherapy ± rituximab. Material and methodsA retrospective analysis of 58 patients (36 males and 22 females) receiving up-front ASCT between 1996 and 2018 for remission consolidation. ResultsOf the diagnosed, fifty patients were in clinical stage ≥ III. Forty-two (72%) of transplanted patients had age-adjusted IPI ≥ 2. The “B” symptoms were present in 34 patients. The conditioning consisted of cyclophosphamide, carmustine, etoposide (CBV) in 32 patients, carmustine, cytarabine, etoposide, melphalan (BEAM) in 18, and 8 patients received bendamustine, cytarabine, etoposide, melphalan (BeEAM). The transplant-related mortality was 0% at day +30 and +100 after ASCT. Median overall survival (OS) was 4.2 years whereas progression-free survival (PFS) reached 3.0 years. The estimated 5-year OS and PFS were found to be 66% and 64%, respectively. The presence of “B” symptoms remained significance in multivariate analysis (HR 4.17 [95% CI: 1.19–14.5]; = 0.02). No grade 3 or 4 non-hematological adverse events were observed. ConclusionsUp-front ASCT was found to be a safe and feasible procedure with long-term remission in approximately 70% of patients

Allogeneic stem cell transplantation remains an effective therapeutic approach for patients with therapy-related acute myeloid leukemia

Introduction: Therapy-related acute myeloid leukemia (t-AML) remains a late consequence of exposure to cytotoxic chemo- and/or radiotherapy for prior malignant or non-malignant disorders. The prognosis of t-AML is extremely poor, and allogeneic stem cell transplantation (allo-SCT) seems to be the most effective therapeutic approach.We evaluated the efficacy and safety of allo-SCT for t-AML preceded by solid tumors and lymphomas. Material and methods: Study patients were retrospectively identified using our institutional database. Nineteen patients (12 female, 7 male), median age 53 years, underwent allo-SCT for t-AML between 2006 and 2018. Results: Prior malignancy was diagnosed at median age of 43.9 years. Among 19 patients included in the study, 6 (32%) had prior breast cancer, 2 (11%) were diagnosed with papillary thyroid cancer, and 2 (11%) were treated for lymphoma. A variety of other cancers were diagnosed in the remaining 9 patients. Median time from previous malignancy to devel­opment of t-AML was 4.9 years. Fourteen patients (74%) were transplanted in first complete remission (CR1), 4 patients (21%) were in CR2, and 1 patient received graft being in active disease. 10 patients (53%) are alive at last contact in CR. Patients died mainly from infectious complications. Median follow-up from prior malignancy and from transplanta­tion was 9.5 years and 1.82 years, respectively. The 2-year overall survival (OS) was 57%. Median OS for survivors is 4.08 years. Grafts from unrelated donors and the presence of acute graft-versus-host disease affected OS. Conclusions: Allo-SCT remains an effective therapy for t-AM

Nymphaeetum candidae Miljan 1933 in Poland

This paper presents the distribution, floristic composition and ecological requirements of the water plant community Nymphaeetum candidae Miljan 1933, belonging to the Potametea class. Until present this community has been reported only from north-eastern Poland. During present studies it was stated also in the south-western part of the country. Nymphaeetum candidae is considered to be a rare and endangered plant community in several countries of Central Europe

Nymphaeetum albae Vollmar 1947 em. Oberd. in Oberd. et al. 1967, a plant association new to Poland

The paper presents a water plant community new to Poland - Nymphaeetum albae Vollmar 1947 em. Oberd. in Oberd. et al. 1967, belonging to the i class. It was discovered in fishponds in Pokój near Namysłów, Lasowice Małe near Kluczbork and small ponds in Staniszcze Małe near Opole in Silesia (SW Poland). Floristic composition and ecological requirements of this association are presented in the paper. Nymphaeetum albae is considered to be a rare and endangered plant community in Europe

Bath houses at the turn of the 19th to 20th centuries in the process of improving public health in the cities of Silesia – selected examples

In the 19th century in Silesia there was a rapid development of industry. As a result, intense urbanization processes took place and large agglomerations appeared. Those processes had never before been that quick or largescale. The explosion of industry supported people migration and uncontrolled spread of various diseases. Work in the industry, in poor sanitary and hygienic conditions, had a negative impact on the health condition of city residents. Underequipped or missing sanitary units, especially in hastily created and crowded working-class districts, poor life conditions, and undernutrition were the reasons for many hygienic problems and various epidemics. Preventive actions carried out by governments aimed at improving sanitary conditions and the level of hygiene among people. Construction of public bath houses was one of the means against growing epidemiological problems. First public bath houses in Europe were built in England and Prussia, where Silesia was industrially the most rapidly developing area. The main feature of public bath houses built in Silesia in the 19th century was their multifunctionality – buildings were divided into sectors for males and females, they had showers, baths, washing rooms and, later, larger and smaller swimming pools. Public bath houses in Katowice, Wrocław, Prudnik, and Zabrze are the most interesting examples in Silesia.W XIX w. na Śląsku nastąpił gwałtowny rozwój przemysłu. Towarzyszyły temu intensywne procesy urbanizacyjne oraz tworzenie się dużych skupisk ludzkich, które nigdy wcześniej nie przebiegały tak szybko i na tak dużą skalę. Eksplozja przemysłu sprzyjała migracjom ludności, a tym samym niekontrolowanemu rozprzestrzenianiu się wielu chorób, zaś praca w przemyśle, w złych warunkach sanitarno-higienicznych, odbijała się bardzo negatywnie na stanie zdrowia mieszkańców miast. Niedostatecznie wyposażone lub brakujące węzły sanitarne, zwłaszcza w szybko powstających, przeludnionych dzielnicach robotniczych, złe warunki życia oraz niedożywienie były przyczyną nasilania się problemów związanych z higieną i wybuchem różnych epidemii. Starania zapobiegawcze, jakie wówczas podejmowały rządy państw, w głównej mierze dążyły do poprawy warunków sanitarnych i stanu higienicznego wśród ludności. Jednym ze sposobów radzenia sobie z narastającymi problemami epidemiologicznymi była budowa łaźni miejskich. Pierwsze takie obiekty w Europie powstały w Anglii oraz Prusach, gdzie najszybciej rozwijającym się przemysłowo obszarem był Śląsk. Główną cechą publicznych łaźni miejskich, powstałych na Śląsku w XIX w., była ich wielofunkcyjność – w budynkach takich mieściły się sektory dla mężczyzn i kobiet, prysznice, wanny do kąpieli, pralnie, a w późniejszym czasie także większy lub mniejszy basen pływacki. Do najciekawszych przykładów na Śląsku należą łaźnie miejskie w Katowicach, Wrocławiu, Prudniku i Zabrzu

New, Rare and Constant Habitats for Endangered Aquatic Plant Communities: The Importance of Microhabitats for Global biodiversity

Natural water reservoirs are very valuable floristic sites, with springs particularly important for the preservation of floral biodiversity. This paper presents, as a case study, a community of water plants that is new to limnocrene karst springs in Europe: Potametum alpini (Potametea), found in Poland. The paper provides the floristic composition and ecological requirements of this plant association, which is rare and endangered in Europe. According to our knowledge, the habitat data presented here are unique as they are published for the first time for this plant community, and thus it is currently not possible to compare them with data from other authors. Our study confirms the importance of rare microhabitats for global biodiversity. Research on as yet unknown physical and chemical factors limiting the range and development of patches of different plant associations should be conducted intensively, because plant communities, including rare, endangered and protected examples, are an important element of biodiversity at both continental and local scales. All the issues discussed in the paper (rare microhabitats, endangered aquatic plant communities, global biodiversity) are important because they are related to the conservation and management of inland waters