37 research outputs found

    Tunneling, Raman and Stm Studies Of Thin YBaCuO Films

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    Zadanie pt. Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki nr 885/P-DUN/2014 zostało dofinansowane ze środków MNiSW w ramach działalności upowszechniającej naukę

    The new features of landslide relief discovered using LiDAR – case study from Babia Góra massif, Western Carpathian Mountains

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    Basing on LiDAR data, the re-interpretation of the limit and distribution of the selected landslide forms in 9 test areas were carried out. The forms are located at the slopes of the monoclinal ridge of Babia Góra Mt. (1,725 m a.s.l.) in the flysch Western Carpathians. The earlier knowledge on these landforms is shown in the unpublished map at the scale of 1:5,000 which was prepared basing on geomorphological mapping. Basing on the newest information source, subtle geomorphic signatures of landslides were found, the dynamics of these forms and directions of their further development were determined. Local differentiation of deep-seated landslides was indicated according to the relation between the sandstone layer dip and slope inclination, slope length, and altitude of the location of headwaters. An attention was paid to polycyclic relief of the highest located landslide forms, which contain the elements of glacial and nival morphology, and some are modelled by debris flows

    Light driven reactions of single physisorbed azobenzenes

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    We present a successful attempt of decoupling a dye molecule from a metallic surface via physisorption for enabling direct photoisomerization. Effective switching between the isomers is possible by exposure to UV light via the rotation pathway. © 2011 The Royal Society of Chemistry

    Giant benign ovarian tumor coexisting with late pregnancy – a case report

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    Abstract We have reported a rare case of a giant ovarian tumor which, due to the lack of proper health care on the side of the patient, had not been diagnosed until 27 weeks of pregnancy. The patient did not demonstrate any clinical symptoms till the moment of the diagnosis. Peripheral blood analysis showed severe anemia at the admission. The right adnex with the multilocular cystic tumor containing bloody fluid and measuring 40 cm in diameter, was removed in the course of the surgical procedure . The histological diagnosis of the tumor was: serous cyst. Surgical removal of the giant tumor allowed for further development of pregnancy and enabled vaginal delivery of healthy newborn at term

    The dynamics of the timberline ecotone on the asymmetric ridge of the Babia Góra Massif, Western Carpathians

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    Timberline ecotone (TE) generally developed because the temperatures in the environment were too low. There are other overlapping biotic and abiotic factors which affect the TE. The main aim of this work was to determine how the asymmetry of Babia Góra’s ridge influences the location and characteristics of the timberline ecotone nowadays, and how the ridge influenced the timberline ecotone in the mid-20th century. The asymmetry of environmental conditions means the timberline has formed in two extreme environments: on the sunny and gentle southern slope (40% of the timberline length) and on the cold, humid, steep northern slope (another 40% of the timberline length). The southern slope of the ridge shows a progressive timberline length of 86%. In turn, 81% of the timberline on the northern slope is in a stable ecotone

    The tree-ring growth responses to climate in the timberline ecotone of Babia Góra Mountain

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    The growth/climate response of Norway spruce in the timberline ecotone of Babia Góra Mountain was examined. Based on a pool of 708 trees from 10 sites, the influence of age, exposure, and method of computing chronology, was assessed. Gridded data and 12 instrumental series were used to study the spatiotemporal relationship of the tree growth and climate. Temperature mainly controls the growth of the Norway spruce in the timberline ecotone at Babia Góra Mountain. The most important factors were the June and July temperatures (r = 0.57) and of the entire growing season April-September (r = 0.52). The precipitation of late winter (Marchand correspondingly the January-March season) had a positive influence on the tree growth. The previously reported negative correlation with the summer precipitation was found but it was less important. The mature trees growing on the northern slope showed a response to the summer temperature in a stronger manner than all the other groups. The low-frequency SPL chronologies (detrended using the cubic smoothing splines method) performed better than the RCS (regional curve standardisation) of the high-frequency SPL. A strong correlation was found with Obidowa, the nearest located instrumental data (a distance of 35 km), and the Hala Gąsienicowa, the station located at a similar elevation a.s.l. (1508 m a.s.l.), but also with the Krakow located farther away and at a lower elevation (237 m a.s.l.). The TRW/temperature correlation was temporally most stable in the case of Zakopane

    Geographical characteristics of the timberline in the Carpathians

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    The pattern of timberline distribution on mountain ranges world-wide is related to global factors. The basic factor is temperature and the amount of radiation, which falls with increasing distance from the equator. Additionally, this basic relationship is overlaid by the specific features of the type of climate on the massif (degree of continentality or oceanity) and the mass-elevation effect. In the Carpathians, the mass elevation effect seems to have bigger impact on the location of timberline (R2 = 0.71, p = 0.00) than their latitudinal location (R2 = 0.56, p = 0.00). The timberline altitude changes by 70 m a.s.l. (±20 m) with each degree of latitude. The influence of the type of the climate is complex and it is not clearly visible due to past and recent human impact

    The influence of snow avalanches on the timberline in the Babia Góra Massif, Western Carpathians

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    Avalanches are one of the most important abiotic factors influencing the timberline on a worldwide scale. In the case of Babia Góra, avalanches are found to affect more than ¹⁄³ of the length of the timberline, locally lowering it by as much as 350 m in distance. The timberline under the influence of avalanche processes is associated with steep slopes (>30°), with 90% of this being located on the massif’s northern slope. In the long run (1964-2009), around the whole massif the timberline shows a high degree of stability along 79% of its length. It proved possible to reconstruct avalanche events along the largest avalanche path in the examined massif, the Szeroki Żleb gully. Nine such events are seen to have occurred over the past 120 years, with seven of these characterising the last 50 years. The avalanche(s) occurring in winter 1975/1976 had the greatest impact on the timberline in the Szeroki Żleb gully over the examined period

    Timberline in the Carpathians : an overview

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    In nature, division lines are delineated where multiple important environmental features change. These division lines may be singled out at the intersection of two geosystems (Balon 2000) where the functional uniformity of the geosystems located on both sides are preserved (Forman & Gordon 1986; Cadenasso et al. 2003). A significant environmental boundary is the upper forest boundary (timberline), which separates different vegetation zones: (1) forest from non-forest (Piękoś-Mirkowa & Mirek 1996); climatic zones (2) cool from very cool (Hess 1965); geoecological zones (3) periglacial from temperate forest system (Kotarba 1996). A timberline is a sensitive ecosystem therefore is a good indicator of changes occurring in the environment. There are, however, multiple elements which affect the timberline. This ecotone has also been widely analysed in local, regional, and even monographic studies of numerous massifs. It is necessary to present and organise the great amount of information in order to aid research on the timberline in the Carpathians

    Evaluation of neutrophile elastase and isoprostane 8epiPGF2α concentrations in maternal and umbilical cord blood serum and in amniotic fluid in pregnancies complicated by premature rupture of membranes

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    Abstract Objectives: To evaluate the total isoprostane 8-epi-PGF2α and neutrophil elastase (NE) concentrations in pregnancies complicated by premature rupture of membranes (PROM). Material and methods: 128 pregnant women were divided into four groups: pregnancies complicated by PROM between 24.-36.(PPBP-N) and between 38 a 41 weeks of gestation (PPBP-D), uncomplicated pregnancies between 24-36 gestation weeks (K1) and pregnancies delivered by cesarean section (before uterine contractions had started) after 38 weeks (K2). The concentrations of NE and isoprostane 8-epi-PGF2α were measured in maternal serum, cord blood serum and in the amniotic fluid. Results: The following study revealed higher concentrations of NE in maternal serum and in the amniotic fluid than in the umbilical cord blood in PROM cases, and lower amniotic fluid than maternal serum concentrations in the control groups. Also, the levels of isoprostane differentiated between compartments in particular groups. In both groups complicated with PROM, higher maternal serum and amniotic fluid NE concentrations than in controls were found. There were no differences in isoprostane levels between the groups. Conclusions: 1. Higher concentrations of NE in maternal blood serum and in the amniotic fluid than in the umbilical cord blood in PROM cases, as well as lower amniotic fluid than maternal serum concentrations in the controls, may be connected with pathogenesis of PROM. 2. Differentiated maternal serum, cord serum and amniotic fluid isoprostane concentrations may suggest various intensity of oxidative stress in particular compartments. 3. Lack of differences in maternal serum, cord serum and amniotic fluid isoprostane concentrations may suggest similar intensity of oxidative stress in cases with PROM and intact membranes
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