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Wyszukujesz frazę "Rodziewicz, Joanna" wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Cyclic sorption and desorption of reactive dyes onto chitosan beads
Autorzy:
Filipkowska, Urszula
Rodziewicz, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1035454.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitosan
cyclic sorption/desorption
reactive dyes
Opis:
The study was undertaken to analyze cyclic sorption and desorption of four reactive dyes: Reactive Yellow 84, Reactive Red 11, Reactive Black 5 and Reactive Black 8. onto chitosan beads. In all experimental series, dye and sorbent concentrations were constant and reached 50 mg/dm3 and 1 mg d.m./dm3, respectively. Determinations were conducted to investigate the effect of the sorbent on the effectiveness of dye removal. The number of feasible sorption/desorption cycles ranged from 6 to 3 and was found to depend on the type of dye tested. For all dyes examined, the quantity of dye accumulated onto chitosan beads and released from the solution was determined after each process of sorption and desorption.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2011, 16; 71-78
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of ph value and adsorbent concentration on the effectiveness of adsorption onto chitin and chitosan
Autorzy:
Filipkowska, Urszula
Rodziewicz, Joanna
Sobotka, Renata
Powiązania:
https://bibliotekanauki.pl/articles/1035550.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
chitin
chitosan
reactive dye RB5
Opis:
The study was aimed at determining the effectiveness of reactive dye RB5 removal in the adsorption process onto chitin and chitosan as affected by the quantity of an adsorbent and pH value of the solution. The experiment was conducted at two concentrations of a sorbent, i.e. 1 and 5 mg d.m./dm3 and at three values of the reaction, i.e. pH 3.0, pH 5.0, and pH 9.0. The kinetics of RB5 sorption onto chitin and chitosan was described with the use of Langmuir model. In the case of both adsorbents examined, the highest adsorption capacity was achieved at pH 3.0 and adsorbent concentration of 1 g d.m./dm3. Increasing pH value up to pH 5.0 and 9.0 and adsorbent concentration in the sample from 1 to 5 g d.m./dm3 caused a decrease in the quantity of dye absorbed.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2010, 15; 79-86
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of electric current density on specific denitrification rate of and nitrogen removal rate in electrochemical and electrobiological rotating contactor
Wpływ gęstości prądu elektrycznego na właściwą szybkość denitryfikacji i na szybkość usuwania azotu w elektrochemicznym i elektrobiologicznym złożu obrotowym
Autorzy:
Rodziewicz, Joanna
Janczukowicz, Wojciech
Mielcarek, Artur
Bryszewski, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/1845362.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electric current density
rotating electrochemical disk contactor
rotating electrobiological disk contactor
specific denitrification rate
nitrogen removal rate
gęstość prądu elektrycznego
obrotowy elektrochemiczny stycznik dyskowy
obrotowy elektrobiologiczny stycznik dyskowy
określony stopień denitryfikacji
szybkość usuwania azotu
Opis:
This study aimed to determine the influence of the electric current density on the rate of nitrogen compounds removal (rN) and the specific rate of denitrification (rD) in a rotating electrochemical disk contractor (RECDC) and a rotating electro-biological disk contactor (REBDC). In REBDC and RECDC, the cathode consisted of disks with immobilized biomass and disk, from which biofilm was periodically removed, respectively. An aluminum anode was mounted in contactor chambers. The study was conducted using synthetic wastewater with characteristics similar to wastewater from soilless cultivation of tomatoes. The first stage of the study determined rN and rD in the RECDC. The second stage determined rN and rD in the REBDC. Four hydraulic retention times (HRT) were tested: 4 h, 8 h, 12 h, and 24 h, with electric current densities of 0.63 A/m2, 1.25 A/m2, 2.50 A/m2, 5.00 A/m2, and 10.00 A/m2. In RECDC, a linear dependency was observed between rN and current density in the examined HRTs, whereas in REBDC, a logarithmic dependency was confirmed between rN and current density. In both contactors, an exponential dependency was observed between rD and current density. The specific rate of denitrification decreased when the current density and HRT were increased. The study showed that, in both contactors, the rate of total nitrogen removal increased when the current density was increased and the HRT was decreased.
Celem pracy było określenie wpływu gęstości prądu na szybkość usuwania związków azotu (rN) i na specyficzną szybkość procesu denitryfikacji (rD) w elektrochemicznym tarczowym złożu obrotowym (RECDC) i elektrobiologicznym tarczowym złożu obrotowym (REBDC). W elektrochemicznym tarczowym złożu obrotowym (RECDC) i elektrobiologicznym tarczowym złożu obrotowym (REBDC) katodę stanowiły odpowiednio tarcze pokryte błoną biologiczną i tarcze z których okresowo usuwano błonę biologiczną. Aluminowa anoda była umieszczona w zbiornikach złoża. Badania przeprowadzono na ściekach o wskaźnikach fizykochemicznych podobnych do ścieków z bezglebowej uprawy pomidorów. W pierwszym etapie badań określono wartości rN and rD w RECDC podczas gdy w drugim w REBDC. Zastosowano cztery wartości hydraulicznego czasu zatrzymania (HRT): 4 h, 8 h, 12 h and 24 h dla następujących gęstości prądu: 0.63 A/m2, 1.25 A/m2, 2.50 A/m2, 5.00 A/m2 and 10.00 A/m2. W elektrochemicznym złożu zaobserwowano liniową zależność pomiędzy rN i gęstością prądu, podczas gdy w złożu elektrobiologicznym zależność logarytmiczną. Dla obu złóż stwierdzono wykładniczą zależność pomiędzy rD i gęstością prądu. Specyficzną szybkość procesu denitryfikacji malała wraz ze wzrostem gęstości prądu i HRT. Badania pokazały, że w obu złożach, elektrochemicznym i elektrobiologicznym szybkość usuwania związków azotu obniżała się wraz ze wzrostem gęstości prądu i obniżaniem HRT.
Źródło:
Archives of Environmental Protection; 2020, 46, 4; 23-32
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of cross-linking with glutaraldehyde on adsorption capacity of chitosan beads
Autorzy:
Jóźwiak, Tomasz
Filipkowska, Urszula
Rodziewicz, Joanna
Nowosad, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/1035335.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
adsorption
chitosan beads
crosslinking chitosan beads
dyes
glutaraldehyde
Opis:
The study was undertaken to analyze the effect of chitosan cross-linking with glutaraldehyde on the adsorption capacity of chitosan beads during adsorption of Reactive Black (RB5) and Basic Green (BG4) dyes. Analyses were conducted at three pH values: pH 3.0; 5.0 and 9.0. Results obtained were evaluated with the use of four models of adsorption isotherms Freundlich, Langmuir, Double Langmuir and Redlic-Petreson. The cross-linking of beads with glutaraldehyde turned out to be beneficial for the anionic dye RB5. Compared to the non-cross-linked beads, a comparable adsorption capacity (over 500 mg/g d.m.) was obtained at pH 3.0 and pH 5.0. In the case of the cationic dye, chitosan cross-linking reduced the quantity of adsorbed dye, irrespective of the pH value of the adsorption process.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2013, 18, 18; 35-47
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected problems of the relation between pain-immunity and depression
Autorzy:
Ortenburger, Dorota
Rodziewicz - Gruhn, Joanna
Jacek, Wąsik
Marfina, Olga
Polina, Natalya
Powiązania:
https://bibliotekanauki.pl/articles/1031730.pdf
Data publikacji:
2017
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
chronic pain
closed circle
depression
immunity system
interactions
Opis:
The paper presents selected problems of the coexistence of chronic pain and depression . It has been assumed that chronic pain and depression make two se parate ailments that often coexist. The phenomenon of the coexistence of physical symptoms (including pain) and depression have been widely popularised. Over 65% of patients with pain ailments suffer from depression that is often undiagnosed. The therapi sts specify this phenomenon as a “closed circle”, as it is not known what the beginning of its appearance was. On one hand, pain often hides the symptoms of depression so effectively that its recognition by a physician seems impossible; on the other, it is known that chronic pain causes continual lowering of mood and depression that increases pain ailments. Moreover, the existence of common neurobiological mechanisms makes depression and pain escalate mutually.
Źródło:
Physical Activity Review; 2017, 5; 74-77
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of serum proteome components associated with progression of non-small cell lung cancer
Autorzy:
Pietrowska, Monika
Jelonek, Karol
Michalak, Malwina
Roś, Małgorzata
Rodziewicz, Paweł
Chmielewska, Klaudia
Polański, Krzysztof
Polańska, Joanna
Gdowicz-Kłosok, Agnieszka
Giglok, Monika
Suwiński, Rafał
Tarnawski, Rafał
Dziadziuszko, Rafał
Rzyman, Witold
Widłak, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1039297.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cancer staging
early detection
lung cancer
proteomics
serum biomarkers
Opis:
The aim of the present study was to perform comparative analysis of serum from patients with different stages of non-small cell lung cancer (NSCLC) using the three complementary proteomic approaches to identify proteome components associated with the progression of cancer. Serum samples were collected before any treatment from 200 patients with NSCLC, including 103 early stage, 64 locally advanced and 33 metastatic cancer samples, and from 200 donors without malignancy. The low-molecular-weight fraction of serum proteome was MALDI-profiled in all samples. Serum proteins were characterized using 2D-PAGE and LC-MS/MS approaches in a representative group of 30 donors. Several significant differences were detected between serum samples collected from patients with early stage cancer and patients with locally advanced cancer, as well as between patients with metastatic cancer and patients with local disease. Of note, serum components discriminating samples from early stage cancer and healthy persons were also detected. In general, about 70 differentiating serum proteins were identified, including inflammatory and acute phase proteins already reported to be associated with the progression of lung cancer (serum amyloid A or haptoglobin). Several differentiating proteins, including apolipoprotein H or apolipoprotein A1, were not previously associated with NSCLC. No significant differences in patterns of serum proteome components were detected between patients with adenocarcinoma and squamous cell carcinoma. In conclusion, we identified the biomarker candidates with potential importance for molecular proteomic staging of NSCLC. Additionally, several serum proteome components revealed their potential applicability in early detection of the lung cancer.
Źródło:
Acta Biochimica Polonica; 2014, 61, 2; 325-331
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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