30 research outputs found

    DArT markers tightly linked with the Rfc1 gene controlling restoration of male fertility in the CMS-C system in cultivated rye (Secale cereale L.)

    Get PDF
    The Rfc1 gene controls restoration of male fertility in rye (Secale cereale L.) with sterility-inducing cytoplasm CMS-C. Two populations of recombinant inbred lines (RIL) were used in this study to identify DArT markers located on the 4RL chromosome, in the close vicinity of the Rfc1 gene. In the population developed from the 541×2020LM intercross, numerous markers tightly linked with the restorer gene were identified. This group contained 91 DArT markers and three SCARs additionally analyzed in the study. All these markers were mapped in the distance not exceeding 6 cM from the gene of interest. In the second mapping population (541×Ot1-3 intercross), only 9 DArT markers located closely to the Rfc1 gene were identified. Five of these DArT markers were polymorphic in both populations

    Control of distillation column using nonlinear predictive algorithm

    No full text
    Popularną metodą rozdziału ciekłych mieszanin wieloskładnikowych jest rektyfikacja, stosowana w różnych gałęziach przemysłu. W artykule rozważana jest mieszanina etanol-woda. Przedstawiono powszechnie stosowany nieliniowy model dwuskładnikowej kolumny rektyfikacyjnej, dokonano jego dyskretyzacji i zaimplementowano w środowisku MATLAB/Simulink. Następnie zaprojektowano układ sterowania wykorzystując nieliniowy algorytm predykcyjny. W badaniach symulacyjnych przeanalizowano wpływ zmian parametrów algorytmu sterowania i zakłóceń na jakość sterowania.Distillation is the most common unit operation in different branches (e.g. petrochemical, chemical, paper, food and pharmaceutical) of industry. A two product (ethanol-water) distillation process is considered in the paper. There is presented a widely used model of two product distillation column [5]. Next, a nonlinear predictive algorithm is designed. The model predictive technology has achieved a strong position in the industrial process control. The proposed control system is validated by simulations in MATLAB/Simulink environment. The influence of control parameters and disturbances is analysed. The paper is organized as follows. Section 1 contains an introduction to the issues of this paper. The distillation column is described in Section 2. Section 3 presents the dynamical nonlinear model of a distillation column. The nonlinear predictive algorithm is designed in the next section. The simulation results and analysis are presented in Section 5. Finally, the conclusions are drawn

    Oxidants and antioxidants of erythrocytes

    No full text
    Erythrocytes contain reactive forms of oxygen (superoxide anion, hydrogen peroxide, hydroxyl radical) and reactive form of nitrogen (nitric oxide anion, S-nitrosothiols, peroxynitrite anion). Reactive oxygen species and reactive nitrogen species inactivate enzymatic (methemoglobin reductase, Cu, Zn-Superoxide dismutase, catalase, glutathione peroxidase) and non-enzymatic (glutathione, alpha-tocopherol, beta-carotene, ascorbate) antioxidants. Their quantity in erythrocytes increases in case of exposure to xenobiotics, in erythrocytes containing pathological hemoglobin, in erythrocytes with the enzymatic defects of the glycolytic or pentose cycle, in erythrocytes found in arterial and venous thrombi, and in the blood extravasated to tissues and body cavity. In such cases are observed in erythrocytes: structure modification of hemoglobin and membrane proteins, and lipids peroxidation. These processes cause changes of shape, decrease of flexibility, decrease of resistance to hemolysis, Heinz's bodies production and shorten the life span of red cells

    Spectroscopic Investigations of Charge Transfer Salt VINΦ2\text{}_{2}(TCNQ)2\text{}_{2}

    No full text
    VINΦ2\text{}_{2}(TCNQ)2\text{}_{2} is a salt with two different, non-parallel TCNQ stacks. The polarized reflectance spectra from single crystals in the IR region 660-5200 cm1\text{}^{-1}, the powder absorption spectra 400-45000 cm1\text{}^{-1} and FT-NIR Raman spectra of VINΦ2\text{}_{2}(TCNQ)2\text{}_{2} are measured at room temperature. Moreover, the temperature dependence of powder absorption spectra in the frequency range 400-7900 cm1\text{}^{-1} are studied. The nature of electronic bands, the anisotropy of optical conductivity, the temperature dependence of some vibrational bands and the charge distribution on different TCNQ stacks are discussed

    THE EXAMPLE OF USING THE XIAOMI CAMERAS IN INVENTORY OF MONUMENTAL OBJECTS - FIRST RESULTS

    No full text
    At present, digital documentation recorded in the form of raster or vector files is the obligatory way of inventorying historical objects. Today, photogrammetry is becoming more and more popular and is becoming the standard of documentation in many projects involving the recording of all possible spatial data on landscape, architecture, or even single objects. Low-cost sensors allow for the creation of reliable and accurate three-dimensional models of investigated objects. This paper presents the results of a comparison between the outcomes obtained when using three sources of image: low-cost Xiaomi cameras, a full-frame camera (Canon 5D Mark II) and middle-frame camera (Hasselblad-Hd4). In order to check how the results obtained from the two sensors differ the following parameters were analysed: the accuracy of the orientation of the ground level photos on the control and check points, the distribution of appointed distortion in the self-calibration process, the flatness of the walls, the discrepancies between point clouds from the low-cost cameras and references data. The results presented below are a result of co-operation of researchers from three institutions: the Systems Research Institute PAS, The Department of Geodesy and Cartography at the Warsaw University of Technology and the National Museum in Warsaw

    INVESTIGATION INTO THE USE OF ACTION CAMERAS IN THE DOCUMENTATION OF ARCHITECTURAL DETAILS – THE CASE STUDY OF A BAROQUE CHAMBER

    No full text
    In this paper the possibility of using the Xiaomi 4K action cameras as a low-cost sensor for the generation of high resolution documentation of architecture and architectural elements in the field of Cultural Heritage was analysed. For that purpose a series of images was acquired together with tachometric measurements to determine the ground control points. Additionally TLS data was collected, which was treated as a reference. For the purpose of point cloud generation the Structure-from-motion (SfM) and Multi- View Stereo (MVS) approaches were used. The following parameters of the collected data and the resulting documentation were tested: the interior orientation parameters analysis, quality of the Xiaomi built-in Lenses Distortion Correction; the accuracy of the orientation on ground control and check points, the point cloud density; the flatness of the walls; the discrepancies between point clouds derived from the low-cost cameras and TLS data, shape of the architectural details based on cross-section analysis. After the analysis of the obtained results it can be concluded that the Xiaomi 4K low-cost sensors are well suited for the purpose of documentation of architecture and architectural details. All the data for the presented investigation were acquired at the baroque residence of the Bieliński Palace in Otwock Wielki in Poland

    Epidemiology of abdominal aortic aneurysm

    No full text
    Introduction: Abdominal aortic aneurysm is a localized widening, located below the renal arteries. The exact etiology is not fully understood. Probably the main role in the formation of abdominal aortic aneurysm plays a correlation between genetic and environmental factors, especially smoking. The disease is primarily diagnosed in older men although in recent years there is an increased prevalence of the disease among women. Untreated abdominal aortic aneurysm increases in size until it ruptures, which often leads to the death of patient. The disease is generally asymptomatic and most of the aneurysms are detected accidentally, eg., during ultrasound examination of the abdominal cavity.Literature search: The PubMed database was searched in order to collect the literature needed to elaborate the aspects of abdominal aortic aneurysm epidemiology. The search was limited to the review of the original publication from the last 10 years.Conclusions: Analysis of the results indicates that the incidence of abdominal aortic aneurysm in Australia is higher than in America and Europe. The total incidence in Western countries is higher than in Asia. AAA incidence in men is higher than in women. Aneurysms having a diameter of 30 to 39 mm were diagnosed more often than aneurysms with a diameter of more than 40 mm
    corecore