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    Wyświetlanie 1-11 z 11
    Tytuł:
    Improved flotation of heat treated lignite with saline solutions containing mono and multivalent ions
    Autorzy:
    Ozdemir, O.
    Ersoy, O. F.
    Guven, O.
    Turgut, H.
    Cinar, M.
    Çelik, M. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/109640.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    flotation
    heat treatment
    lignite
    DLVO
    Saline Solutions
    Opis:
    Flotation of lignites is inherently difficult. However, pre-heat treatment of coal is also known to make coal surfaces more hydrophobic possibly through removal of water entrapped in the structure of coal. In this context, the objective of this study was, therefore, to determine changes in the hydrophobicity of some lignites under moderately controlled heat treatment and correlate the flotation response of lignites in different salt solutions of NaCl, KCl, CaCl2, and MgCl2 without using any reagent. The results of flotation tests suggested that under the present test conditions, it was possible to float thermally pre-treated lignite samples of partially hydrophobic character in salt solutions in the absence of collector and frother. In addition, the effect of heat treatment on hydrophobicity, and in turn flotation was explained by a theoretical model based on extended DLVO interactions to quantify the effects of both heat treatment and salt concentration on bubble-particle interactions. The results of theoretical modeling suggested that the removal of hydrogen containing groups from coal surfaces significantly contribute to the electrical double layer and hydrophobic forces that govern the magnitude of energetic barrier and also the extent of bubble-particle attachment.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2018, 54, 4; 1070-1082
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimum separation route for semi bituminous coal using semi-pilot scale pneumatic stratification jig
    Autorzy:
    Boylu, F.
    Cetinel, T.
    Guven, O.
    Karakas, F.
    Cinku, K.
    Karaagaclioglu, I. E.
    Celik, M. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/109366.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    semibituminous coal
    dry coal cleaning
    Allair jig
    optimization
    Opis:
    Nowadays, dry beneficiation technologies with an air dense medium fluidized bed come into prominence in the field of coal preparation. In this study, the optimum conditions for different operational parameters such as discharge stargate rate, pulsation frequency, and superficial air velocity were investigated on separation of semi bituminous coal from Soma (Imbat) region using a semi pilot scale Allair jig unit. The experimental studies were carried out with two coal size fractions of -15+4 and -4+1 mm by applying rougher and scavenging stages. After the optimization of each parameter, the results for the rougher stages indicated that clean coal products could be obtained with 11.80% and 16.74% ash contents for -15+4 mm and -4+1 mm size ranges, respectively. In addition, discardable tailings with 65.44% and 60.95 % ash contents could be obtained as the result for the scavenging stages. Finally, the combination of these results for -15+1 mm size exhibited that 59.80% of the feed material with 37.70% ash content can be upgraded to clean coal products with low ash content as 19.80% while the remaining part was discarded as tailings with 68.60% ash content. These values suggested that optimizing the operational parameters of unit brings better results which are applicable in industrial application of dry processes compared to wet processes.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2015, 51, 2; 559-573
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Boric Acid Content on the Structural and Optical Properties of MnS Films Prepared by Spray Pyrolysis Technique
    Autorzy:
    Bedır, M.
    Öztaş, M.
    Çelik, S.
    Özdemır, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1205283.pdf
    Data publikacji:
    2014-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.15.Rs
    78.28.-e
    61.72.Vv
    61.05.cp
    68.55.Jk
    Opis:
    Boron doped MnS films were obtained by the spray pyrolysis method using the boric acid ($H_3BO_3$) as dopant source at a substrate temperature of 350°C. The spray pyrolysis method has a wide range of application areas with a low cost well-suited for the manufacture of solar cells. The properties of boron doped MnS films were investigated as a function of doping concentration. The X-ray analysis showed that the films were polycrystalline fitting well with a hexagonal structure and have preferred orientation in the [002] direction. The optical band gap of the undoped and boron doped MnS films were found to vary from 3.38 to 3.20 eV. The changes observed in the energy band gap and structural properties of the films related to the boric acid concentration are discussed in detail.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 3; 840-844
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of Excited-State Ionization Potentials for Lithium-Like Sequence Using Weakest Bound Electron Potential Model Theory
    Autorzy:
    Çelik, G.
    Yildiz, M.
    Kiliç, H. Ş.
    Powiązania:
    https://bibliotekanauki.pl/articles/2047731.pdf
    Data publikacji:
    2007-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    32.10.-f
    31.50.-x
    Opis:
    In this work, the theoretical calculation of excited-state ionization potentials for 1s$\text{}^{2}$2$\text{}_{p}$ $\text{}^{2}$P$\text{}_{1}\text{}_{/}\text{}_{2}$ , 1s$\text{}^{2}$3$\text{}_{s}^{2}$S$\text{}_{1}\text{}_{/}\text{}_{2}$ , 1s$\text{}^{2}$3$\text{}_{d}^{2}$D$\text{}_{1}\text{}_{/}\text{}_{2}$ , 1s$\text{}^{2}$4$\text{}_{s}^{2}$S$\text{}_{1}\text{}_{/}\text{}_{2}$ , 1s$\text{}^{2}$4$\text{}_{p}^{2}$P$\text{}_{1}\text{}_{/}\text{}_{2}$ , and 1s$\text{}^{2}$4$\text{}_{d}^{2}$D$\text{}_{1}\text{}_{/}\text{}_{2}$ iso-spectrum series of lithium-like elements were carried out using a weakest bound electron potential model theory for nuclear charges from Z=3 to Z=18. The Breit-Pauli approximation was used for relativistic contributions. The obtained values are compared with the experimental results from literature. The overall agreement between data obtained in this work and experimental data from literature can appear to be quite good being generally within 0.1% of experimental values.
    Źródło:
    Acta Physica Polonica A; 2007, 112, 3; 485-494
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Corporate governance and performance of the financial firms in Bahrain
    Ład korporacyjny a wyniki firm finansowych w Bahrain
    Autorzy:
    Aktan, B.
    Turen, S.
    Tvaronavičienė, M.
    Celik, S.
    Alsadeh, H. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/406241.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Częstochowska
    Tematy:
    corporate governance
    firm performance
    emerging market
    Bahrain
    ład korporacyjny
    wydajność firmy
    rozwijający się rynek
    Opis:
    The aim of this paper is to explore the relationship between corporate governance and performance of the financial firms in the Kingdom of Bahrain. The study uses annual data of all listed financial firms on the Bahrain Bourse over the period of 2011-2016. The results show that board size, ownership concentration and auditor’s reputation have a positive and significant impact on firms’ return on assets (ROA), whereas the percentage of independent directors and the annual number of board meetings have negative and significant impact on firms’ return on equity (ROE). CEO duality is found to not be an important determinant factor of firms’ performance, as the results suggest that it shows insignificant effect on ROA, ROE and stock returns (SPR). Furthermore, firm’s size and leverage are found to have negative and insignificant relationship with firms’ performance.
    Celem artykułu jest zbadanie związku między ładem korporacyjnym a wynikami firm finansowych w Królestwie Bahrajnu. W badaniu wykorzystano roczne dane wszystkich notowanych firm finansowych w Bahrajnie w okresie 2011-2016. Wyniki pokazują, że wielkość zarządu, koncentracja własności i reputacja audytora mają pozytywny i znaczący wpływ na rentowność aktywów przedsiębiorstw (ROA), podczas gdy odsetek niezależnych dyrektorów i roczna liczba posiedzeń zarządu mają negatywny i znaczący wpływ na przedsiębiorstwa z kapitałem własnym (ROE). Dualizm dyrektorów generalnych nie jest istotnym czynnikiem determinującym wydajność firm, ponieważ wyniki sugerują, że ma on niewielki wpływ na ROA, ROE i stopy zwrotu (SPR). Ponadto stwierdzono, że wielkość firmy i jej wpływ mają negatywny i nieistotny związek z jej wydajnością.
    Źródło:
    Polish Journal of Management Studies; 2018, 17, 1; 39-58
    2081-7452
    Pojawia się w:
    Polish Journal of Management Studies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Immunological harmony: the role of magnesium in the development of euthyroid Hashimoto’s thyroiditis
    Autorzy:
    Celik, E.
    Celik, M.
    Bulbul, B.Y.
    Andac, B.
    Okur, M.
    Colak, S.Y.
    Yekdes, A.C.
    Powiązania:
    https://bibliotekanauki.pl/articles/53363878.pdf
    Data publikacji:
    2024
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Opis:
    Magnesium is a trace element that is closely linked to thyroid function and autoimmune thyroiditis. Numerous chronic disorders are also linked to low serum magnesium levels; however, it is unclear how its level relates to the development of autoimmune thyroiditis. In the present study, we evaluated the relationship between Hashimoto’s thyroiditis (HT) and serum magnesium levels in 104 patients: 52 with low and 52 with normal serum magnesium levels. Patient records were retrospectively evaluated and the demographic data, serum levels of thyroid-stimulating hormone, anti-thyroid peroxidase antibody (TPOAb), anti-thyroglobulin antibody (TGAb) and serum magnesium levels were recorded. Patients with low magnesium levels were found to have higher levels of TPOAb, TGAb and radiological evidence of HT when compared to those with normal magnesium levels (P = 0.001, P = 0.007, and P = 0.001, respectively). In logistic regression analysis, ultrasonographic HT findings were found to be significantly more common in the magnesium deficient group (P = 0.001). The serum magnesium level of 0.72 mmol L-1 was determined to be the appropriate cut-off point for the presence of HT ultrasonographic findings with 68.9% sensitivity and 64.4% specificity. As a result, in the present study, low serum magnesium levels were found to be associated with significantly higher incidence of ultrasonographic findings of HT, which may suggest that adequate magnesium supplementation may be an independent protective factor against Hashimoto’s Thyroiditis.
    Źródło:
    Journal of Elementology; 2024, 29, 2; 367-378
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of cold storage on the bioactive components and physical properties of caucasian whortleberry (Vaccinium arctostaphylos l.). a preliminary study
    Wpływ przechowywania w chłodni na bioaktywne składniki i właściwości fizyczne borówki kaukaskiej (Vaccinium arctostaphylos l.) badanie wstępne
    Autorzy:
    Ozturk, B.
    Karakaya, O.
    Celik, S.M.
    Karakaya, M.
    Guler, S.K.
    Yarilgac, T.
    Aydin, H.
    Ozturk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/11543339.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    In this study, antioxidant activity (AA), total phenolics (TP), total flavonoids (TF), individual phenolic compounds (IPCs), vitamin C and six other fruit characteristics including weight loss, flesh firmness, color, soluble solids content (SSC), dry matter and titratable acidity (TA) of Caucasian whortleberry fruits (Vaccinium arctostaphylos L.) were determined at harvest and at a week postharvest intervals throughout the cold storage at 0°C for 4 weeks. Significant decreases were observed in fruit weight and flesh firmness during the cold storage period. While L* and chroma values decreased significantly, an increase was observed in hue angle values. Significant increases were observed in dry matter, but decreases were observed in SSC, TA and vitamin C contents. Caucasian whortleberry fruits had quite high polyphenol contents. Total phenolics (TP), total flavonoids (TF), antioxidant activity (AA) (according to ABTS+, DPPH· and FRAP antioxidant tests) and individual phenolic compounds (IPCs) significantly decreased throughout the cold storage. Chlorogenic acid was the major phenolic in Caucasian whortleberry fruits. It was concluded that Caucasian whortleberry fruits with high phenolic compound and flavonoid levels might serve a potential antioxidant source.
    Zbadano aktywność antyoksydacyjną (AA), całkowitą zawartość fenoli (TP), flawonoidów (TF), indywidualnych związków fenolowych (IPC), witaminy C oraz sześć innych cech, takich jak utrata wagi, zwartość miąższu, barwa, zawartość rozpuszczalnych substancji stałych (SSC), sucha masa oraz kwasowość (TA) owoców borówki kaukaskiej (Vaccinium arctostaphylos L.) podczas zbioru oraz z tygodniowymi przerwami po zbiorach w czasie całego okresu przechowywania w chłodni w temperaturze 0°C przez 4 tygodnie. Zaobserwowano istotny spadek masy owoców i zwartości miąższu podczas okresu przechowywania w chłodni. Wartości barwy zmniejszyły się istotnie, natomiast zaobserwowano wzrost wartości kąta odcienia. Zaobserwowano istotny wzrost suchej masy, ale spadek został zanotowany w zawartości SSC, TA oraz witaminy C. Owoce borówki kaukaskiej miały dość wysoką zawartość polifenoli. Całkowita zawartość fenoli (TP), flawonoidów (TF), aktywność antyoksydacyjna (AA) (według testów antyoksydacyjnych ABTS+, DPPH· i FRAP) oraz indywidualne związki fenolowe (IPC) istotnie zmniejszyły się w okresie przechowywania w chłodni. Kwas chlorogenowy był głównym fenolem w owocach borówki kaukaskiej. Wyciągnięto wniosek, że owoce borówki kaukaskiej o wysokim poziomie związków fenolowych i flawonoidów mogą służyć za potencjalne źródło antyoksydantów.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2016, 15, 2; 77-93
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of particle shape properties on selective separation of chromite from serpentine by flotation
    Autorzy:
    Guven, Onur
    Serdengecti, M. Tayhan
    Tunc, Berivan
    Ozdemir, Orhan
    Karaagaclioglu, Ibrahim E.
    Çelik, Mehmet S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1845205.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    chromite
    serpentine
    morphology
    flotation
    mineral mixtures
    Opis:
    Although many studies have been conducted on the morphological variations and its effects on flotation recoveries of a single mineral system, a systematic study for the flotation behavior of mixtures of minerals has not dwelled much. In this study, th flotation behavior of chromite and serpentine minerals was investigated to distinguish and isolate the contribution of morphology in single and binary systems. For this purpose, the shape analyses for the minerals ground as single and mixture were performed, and their flotation behaviors determined with the micro-flotation experiments. Additionally, the zeta potential measurements were carried out in the presence of sodium oleate as a collector. The shape analysis of the ground samples showed that while the roundness values of chromite and serpentine (gangue) minerals as single were quite different, the particle shape of chromite favored serpentine in the mixture system which in turn suggested that the mineral with the high hardness value dominates the shape characteristics in binary grinding conditions. Accordingly, while the flotation characteristics of chromite in the mixture followed the same trend with the flotation of a single chromite system as a function of particle shape, almost a reverse trend was obtained for the shape and flotation of serpentine in the mixture compared to a single serpentine system. Thus, at roundness values of chromite particles from 0.797 to 0.732, the flotation recoveries of chromite in the mixture increased from 51.0% to 75.4%. On the other hand, likewise chromite, the flotation recoveries of serpentine increased from 20.0% to 37.3% proportional to the roundness range of 0.757 and 0.709. These findings in turn showed that the grinding conditions dictate the soft component to be monitored by the harder and denser component which dominates the angularity and floatability of the mixture.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2020, 56, 5; 818-828
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and Characterization of Gd₂O₂SO₄:Pr⁺³ Scintillation Material Produced by Sol-Gel Process for Digital Imaging System
    Autorzy:
    Aritman, I.
    Yildirim, S.
    Kisa, A.
    Guleryuz, L.
    Yurddaskal, M.
    Dikici, T.
    Celik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033327.pdf
    Data publikacji:
    2017-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.55.Hx
    Opis:
    Scintillation materials are widely used in digital X-ray imaging applications, radiotherapy applications coupled with suitable photoreceptors. Gd₂O₂SO₄ (GOS) scintillator doped with trivalent praseodymium (Pr⁺³) presented high X-ray absorption properties and good spectral compatibility which were utilized extensively for imaging system of X-ray microscopy, soft X-ray phosphor screen for water window. In this study, GOS:0.01Pr⁺³ scintillation material was synthesized by unique sol-gel process which was not previously applied and its characterization properties were investigated. Structure and luminescence properties of GOS:Pr⁺³ were optimized by utilizing X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and luminescence spectroscopy.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 1; 106-108
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of different pruning treatments on the growth, fruit quality and yield of 'Hacihaliloglu' apricot
    Wpływ różnych zabiegów cięcia na wzrost, jakość i plon owoców moreli ‘Hacihaliloglu’
    Autorzy:
    Naim Demirtas, M.
    Bolat, I.
    Ercisli, S.
    Ikinci, A.
    Olmez, H.A.
    Sahin, M.
    Altindag, M.
    Celik, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/11541916.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Tematy:
    pruning treatment
    plant cultivar
    plant growth
    fruit quality
    fruit yield
    Hacihaliloglu cultivar
    apricot
    Prunus armeniaca
    summer pruning
    winter pruning
    pomology
    Turkey
    Opis:
    This study was conducted in Malatya, between 1999 and 2003, and the region's most important dried apricot variety, Hacihaliloglu was used as material. In the study, the effect of 5 different combined or alone pruning treatments on the growth, fruit quality and yield characteristics were determined in comparison with non-pruned trees. Pruning treatments in different periods did not statistically affect phenological features and fruit dimensions but strongly affected total soluble solid and fruit firmness of Hacihaliloglu apricot cultivar. The highest average yield considering trunk cross-sectional area was obtained as 0.34 kg·cm-2 from pre-harvest summer pruning treatment and the highest share of flower bud was observed as 68.29% in pre-harvest summer+winter pruning treatment. Pruning applications significantly affected both shoot diameter and length. The highest shoot diameter and length were obtained from pre-harvest summer+winter pruning application as 8.52 mm and 77.84 cm, respectively. The highest leaf area was determined as 39.43 cm2 in post harvest pruning treatment.
    Badanie przeprowadzono w miejscowości Malatya w latach 1999–2003 na najważniejszej w regionie odmianie moreli do suszenia, Hacihaliloglu. W badaniu określono wpływ 5 różnych zabiegów cięcia na wzrost, jakość owoców oraz plonowanie w porównaniu z drzewami nieprzycinanymi. Zabiegi cięcia w różnych okresach nie wpłynęły w sposób istotny na cechy fenologiczne ani rozmiary owoców, natomiast wywarły silny wpływ na zawartość ekstraktu w soku oraz jędrność owoców moreli odmiany Hacihaliloglu. Najwyższy średni plon, 0,34 kg·cm-2 przy uwzględnieniu powierzchni przekroju poprzecznego pnia osiągnięto przy letnim przycinaniu po zbiorze owoców, a największy udział pąków – 68,29%, – zaobserwowano przy przedzbiorczym zabiegu cięcia lato+zima. Zastosowanie cięcia istotnie wpłynęło zarówno na średnicę pędów jak i ich długość. Największą średnicę i długość pędów, odpowiednio 8,52 mm i 77,84 cm, otrzymano stosując przedzbiorcze cięcie lato+zima. Największą powierzchnię liścia, 39,43 cm2 uzyskano przy pozbiorczym zabiegu cięcia.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2010, 09, 4; 183-192
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Urine iodine excretion in patients with papillary thyroid cancer evaluation of the relationship with the presence of BRAF mutation
    Autorzy:
    Celik, M.
    Guldiken, S.
    Ayturk, S.
    Yilmaz Bulbul, B.
    Kucukarda, A.
    Can, N.
    Tastekin, E.
    Sezer, A.
    Sut, N.
    Tugrul, A.
    Gurkan, H.
    Tozkir, H.
    Demirkan, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1192247.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Tematy:
    papillary thyroid cancer
    BRAF mutation
    urine iodine excretion
    Opis:
    Iodine is an essential element for the production of thyroid hormones. In recent years, it has been suggested that excessive consumption of iodine may play a role in the pathogenesis of papillary thyroid cancer (PTC). In addition, studies have suggested that high iodine consumption is an important risk factor for the formation of a BRAF mutation in the thyroid gland. A prospectively designed study included 132 cases scheduled for thyroidectomy for various reasons. Urine iodine levels of all patients were examined before the operation. The iodine excretion levels of the patients were grouped according to the median urinary iodine concentration determined in community screenings (those with <100 µg L-1 low iodine excretion, those with 100-199 µg L-1 normal iodine excretion, those with 200-299 µg L-1 high iodine excretion). Patients were divided into 3 groups according to the post-operative pathology results. As a result of thyroid histopathology, benign (n: 44), PTC (n: 88) (BRAF (+): 44 and BRAF (-): 44) cases were included in the study. BRAF mutations in patients diagnosed with PTC were evaluated using the “Real Time PCR Melting Curve Analyzer” method. The relationship between urinary iodine excretion levels and clinical, histopathological and BRAF positivity was examined. In our study, no difference was found in urinary iodine excretion between patients with and without PTC. Hashimoto’s thyroiditis was observed more frequently in patients with PTC (p=0.023). In addition, Hashimoto’s thyroiditis was statistically more frequently detected in the BRAF (-) group compared to the BRAF (+) and control group (p=0.034). Despite studies suggesting that high iodine consumption is important in PTC pathogenesis, we did not find a relationship between the mutation and iodine consumption, which plays an important role in the development of PTC.
    Źródło:
    Journal of Elementology; 2020, 25, 3; 1019-1028
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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