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    Wyświetlanie 1-3 z 3
    Tytuł:
    Macro and micronutrient deficiency in inflammatory bowel diseases
    Autorzy:
    Jarmakiewicz, Sara
    Piątek, Dominika
    Filip, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/454753.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    Crohn’s disease
    IBD
    ulcerative colitis
    vitamins
    Opis:
    Introduction. Inflammatory bowel disease (IBD) is group of global range inflammatory conditions. There has been a regular increase in the number of IBD cases. Patients exclude whole food groups from their diet fearing the emergence of disease symptoms or due to learning from unreliable sources. Doing so, they might deepen the already existing vitamin deficiencies which occur along with the shortage of many minerals. These deficiencies might intensify the disease process or cause a new one. The most common deficits pointed out by numerous researchers concern vitamin D, calcium, cobalamin, folic acid and iron. It is well worth introducing selenium, zinc and ascorbic acid into a diet because of their immunomodulating effect. Important aspect of the healing process is a personalized diet which is designed to compensate for, or prevent vitamin and mineral deficiencies. Aim. The purpose of the study was to review the literature about vitamin and mineral deficiency in Inflammatory Bowel Diseases. Materials and method. Analysis of literature
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2017, 4; 342-348
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of bone sialoprotein in the saliva of women at peri- and postmenopausal age
    Autorzy:
    Piątek, Dominika
    Bachanek, Teresa
    Donica, Helena
    Chałas, Renata
    Powiązania:
    https://bibliotekanauki.pl/articles/972428.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    bone sialoprotein
    saliva
    osteoporosis
    bone turnover markers
    Opis:
    Introduction and objective. Bone sialoprotein (BSP) is present in a non-collagenous fraction of bone matrix, in dentine, cement and calcified cartilage. The characteristic place where sialoprotein is produced makes it highly specific in relation to the bone tissue and the possibility of using it as a marker of bone metabolism. The study aimed to assess the BSP level in the saliva of female patients at the menopausal and postmenopausal period. Materials and method. The study included 71 women aged 45–74 years. In the examined subjects, bone mineral density and bone sialoprotein levels in saliva were determined. Patients also responded to survey questions about place of residence and the frequency of consumption of foods rich in calcium. The obtained results were statistically analyzed. Results. In the study population of women, BSP saliva concentration ranged from 0.40–14.97 ng/ml. The highest BSP values were observed in the control group (average – 5.66 ng/ml, median – 6.73 ng/ml,), the lowest in the osteopenia group (average – 3.09 ng/ml, median – 1.71 ng/ml). This relationship was close to statistical significance (p = 0.056). Place of residence of the surveyed women had neither effect on BSP concentration in saliva nor on the value of the T-score ratio. Similarly, there was no statistically significant relationship between the frequency of consumption of foods rich in calcium and BSP and T-score. Conclusions. It was found that the BSP level can be determined in saliva. Biochemical tests of saliva considering bone metabolism are an issue that should be continued in future, as the availability of material (saliva) for laboratory analyses, carries potential diagnostic opportunities.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2016, 10, 2; 100-104
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessing the potential replacement of mineral oil with environmentally acceptable lubricants in a stern tube bearing: an experimental analysis of bearing performance
    Autorzy:
    Kowalski, Jerzy
    Leśniewski, Wojciech
    Piątek, Daniel
    Cuper-Przybylska, Dominika
    Powiązania:
    https://bibliotekanauki.pl/articles/2033285.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    environmentally acceptable lubricants
    EALs
    mineral oil
    stern tube bearing
    bearing wear
    marine bearing
    Opis:
    This study compares the performance of a plain bearing, with a similar structure to a tail shaft stern bearing, lubricated with either mineral oil or an environmentally acceptable lubricant (EAL). The main characteristic of the bearing is its length/diameter ratio of <1. Measurements are carried out with the bearing operating under loads from 0.5 to 1 MPa and seven speeds ranging from 1 to 11 rev/s. The bearing lubricated with either mineral oil with a viscosity grade of 100 or an environmentally acceptable lubricant (EAL) with a viscosity grade of 100 or 150 is investigated according to the ISO standard. Bearing wear is simulated by increasing the clearance circle by 0.1 mm. According to the results obtained, the use of an EAL in place of mineral oil does not cause significant changes in the bearing performance, regardless of the value of the clearance radius. The pressure distribution in the oil film, bearing load carrying capacity, eccentricity and friction coefficient have similar values for the entire load and speed ranges considered, and the discrepancies in the results are within the range of the measurement errors. Only an increase in EAL viscosity causes significant changes in bearing performance and these changes comply with the general theory of lubrication.
    Źródło:
    Polish Maritime Research; 2021, 4; 160-166
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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