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  1. 12 Archivum Immunologiae et Therapiae Experimentalis
  2. 8 Folia Histochemica et Cytobiologica
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  1. 1 2021
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  1. 5 Brzezinski P. M.
  2. 5 Godlewski A.
  3. 3 Csaba G.
  4. 3 Kohidai L.
  5. 2 Jankowska R.
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1
Content available Existence of Solutions for the Keller–Segel Model of Chemotaxis with Measures as Initial Data
100%
Biler P. , Zienkiewicz J.
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2015
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tom Vol. 63, no. 1
41--51
EN
A simple proof of the existence of solutions for the two-dimensional Keller-Segel model with measures with all the atoms less than 8π as the initial data is given. This result was obtained by Senba and Suzuki (2002) and Bedrossian and Masmoudi (2014) using different arguments. Moreover, we show a uniform bound for the existence time of solutions as well as an optimal hypercontractivity estimate.
2
Content available Effect of conglutinin on phagocytic activity of bovine granulocytes
60%
Dec M. , Wernicki A. , Puchalski A. , Urban-Chmiel R. , Radej S.
Polish Journal of Veterinary Sciences
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2012
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tom 15
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nr 3
EN
In the present study we investigated the effect of bovine conglutinin on the phagocytic activity of leukocytes. We measured both the chemotactic activity of conglutinin and its effect on the internalization of zymosan particles and E. coli by granulocytes. We also assessed the binding of conglutinin to various microorganisms isolated from clinical cases in cattle. We showed that conglutinin binds strongly to the surface of yeast cells and to mannan-rich zymosan particles, while weak binding was observed in the case of the bacterial strains tested, including those whose O antigen is composed of mannan. Conglutinin (1-10 μg/ml) neither acts as a chemotactic factor for peripheral blood leukocytes nor affects ingestion of E. coli by granulocytes. However, as flow cytometry based assay showed, conglutinin (0.1-1 μg/ml) increased ingestion of zymosan expressed as mean fluorescence intensity (MFI) of positive cells.
3
Content available Modelowanie chemotaksji w populacji komórek przy użyciu metod multiagentowych
60%
Wołoszyn P.
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2006
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tom T. 10, z. 3
99-106
PL
Chemotaksja w kolonii komórkowej wywołana sygnałami biochemicznymi wydzielanymi przez komórki prowadzi do złożonych zachowań takiej zbiorowości, które można badać za pomocą metod multiagentowych. W pracy opisano agentowy model kolonii oraz przeprowadzone na nim eksperymenty symulacyjne. Obserwowana populacja wykazywała tendencję do samorzutnego wytwarzania skupisk. Wyniki doświadczeń wskazują, że zbiorowość organizmów może prezentować zachowania pozornie celowe pomimo braku jawnie określonej strategii kierującej zachowaniem poszczególnych osobników.
EN
Biochemical signals produced by colony of unicellular organisms can induce complex movements of cells caused by their chemotaxis. This behaviour can be modelled with the use of multiagent dynamic system. This paper describes multiagent model of a cellular colony and presents the results of performed simulations, which reveal agents' spontaneous tendency to aggregate into clusters. Analysis of model dynamics leads to conclusion that apparently intentional behaviour can emerge in population consisted of simple agents lacking ability to make strategic decisions.
4
The chemokine CX3CL1 (fractalkine) and its receptor CX3CR1: occurrence and potential role in osteoarthritis
60%
Wojdasiewicz P. , Poniatowski L. A. , Kotela A. , Deszczynski J. , Kotela I. , Szukiewicz D.
Archivum Immunologiae et Therapiae Experimentalis
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2014
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tom 62
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nr 5
5
Sodium hydrosulfide exerts a transitional attenuating effect on spermatozoa migration in vitro
60%
Wilinski B. , Wilinski J. , Gajda M. , Jasek E. , Somogyl E. , Glowacki M. , Sliwa L.
Folia Biologica
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2015
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tom 63
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nr 2
6
Molecule dependent chemotactic responses of Tetrahymena pyriformis elicited by volatile oils
60%
Kohidai L. , Lemberkovics E. , Csaba G.
Acta Protozoologica
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1995
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tom 34
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nr 3
7
Effect of oxytocin and its analogues on the chemotaxis of Tetrahymena: evolutionary conclusions
60%
Csaba G. , Kovacs K. , Kohidai L.
Acta Protozoologica
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2000
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tom 39
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nr 4
8
The effect of met-enkephalin on granulocyte functions in vitro
60%
Godlewski A. , Brzezinski P. M.
Folia Histochemica et Cytobiologica
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1999
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tom 37
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nr 2
9
Content available Storage of hydrogenous gas in geological formations: self-organisation methane gas
51%
Toleukhanov A. , Kaltayev A. , Panfilov M.
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2013
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tom Vol. 30, no. 1
241--245
EN
In the case of producing large amounts of hydrogenous gas, currently there are no problems related to basic techniques of hydrogen production and distribution, but the main technological problem will consists of storing it in order to regulate the difference between permanent or increasing gas production and seasonally modulated gas consumption. The most efficient and most inexpensive method of storing large amounts of hydrogen is to inject them in geological formations like aquifers, depleted gas reservoirs, or salt caverns (Zittel and Wurster 1996). The cost is of order $ 3.5 per 1 GJ (Taylor et al. 1986). Several underground storages of hydrogen (USH) or town gas exist in the word, as for instance, Teeside in the UK, in Texas, in Russia, Kiel in Germany, Lobodice in Czechoslovakia, Beynes - an ex-storage in France. During several tens of years the storage of hydrogen was considered as something deja-vu, to be similar to that of natural gas, which is amplified by the chemical inactivity of hydrogen and its very low solvability in groundwater [Bulatov 1979; Carden and Paterson 1979; Lindblom 1985; Paterson 1983]. Nevertheless, quite unusual behaviour of UHS was discovered by in situ monitoring of the gas composition extracted during the cycle "production" which followed the cycle "injection". These observations (Smigai et al. 1990; Buzek et al. 1994) revealed high variations of gas composition in time and space. In particular, a significant reduction in the H2 and CO2 contents and a simultaneous increase in CH4 contents were observed in the Lobodice town gas storage facility (Smigai et al. 1990). Similar phenomena were recorded in Beynes. After several months of injection and storage, at the beginning of the cycle "production" the twofold increase of the methane contents in the reservoir gas and the twofold reduction of the CO2 CO contents was observed. The contents of hydrogen decreased by 1.4. The explanation to these observations has been done in (Buzek et al. 1994) in terms of the in situ methane generators by methanogenic bacteria which catalyse the reaction between hydrogen and CO2/CO, by producing methane and water. Further observations have revealed even more unusual effects within the storage facility, such as creating a spatial alternation of the areas saturated preferably by hydrogen or methane. This proved an in situ natural separation of chemical components in space. Thus, we are dealing with a natural reactor which partially destroys CO2 and H2 and doubles the mass of methane. It is clear that the problem is important for industry as it concerns both the energy sector and ecology. The resulting economical efficiency of such a process can be estimated only after the physical and mathematical modeling of all possible scenarios of the reservoir behaviour. The development of such a model represents the main objective of this paper.
10
T cell chemokine receptor expression in human Th1- and Th2-associated diseases
51%
Campbell J. D. , HayGlass K. T.
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|
tom 48
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nr 6 Spec.Iss.
451-456
11
Content available Numerical experiments with model equations of cancer invasion of tissue
51%
Kolev M. , Zubik-Kowal B.
Control and Cybernetics
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2011
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tom Vol. 40, no 3
779-791
EN
In this paper we investigate a mathematical model of cancer invasion of tissue, which incorporates haptotaxis, chemotaxis, proliferation and degradation rates for cancer cells and the extracellular matrix, kinetics of urokinase receptor, and urokinase plasminogen activator cycle. We solve the model using spectrally accurate approximations and compare its numerical solutions with laboratory data. The spectral accuracy allows to use low-dimensional matrices and vectors, which speeds up the computations of the numerical solutions and thus to estimate the parameter values for the model equations. Our numerical results demonstrate correlations between numerical data computed from the mathematical model and in vivo tumour growth rates from prostate cell lines.
12
Reversible inhibition of movement in the amoebae Dictyostelium discoideum and its effect on chemoattractant recognition
51%
Waligorska A. , Wianecka-Skoczen M. , Korohoda W.
|
|
tom 56
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nr 3-4
123-131
13
Inhibition of rhabdomyosarcoma's metastatic behavior through downregulation of MET receptor signaling
51%
Lukasiewicz E. , Miekus K. , Kijowski J. , Drabik G. , Wilusz M. , Bobis-Wozowicz S. , Majka M.
Folia Histochemica et Cytobiologica
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2009
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tom 47
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nr 3
14
Comparison of lectin induced chemotactic selection and chemical imprinting in Tetrahymena pyriformis
51%
Kohidai L. , Banky C. , Csaba G.
|
2003
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tom 42
|
nr 2
15
The effects of tetrachloroplatinum [II] ions on guinea pig peritoneal exudate neutrophil [heterophil] granulocytes
51%
Godlewski A. , Brzezinski P. M. , Litwin J. A.
Folia Histochemica et Cytobiologica
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1999
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tom 37
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nr 2
16
Effect of general and regional anesthesia on some neutrophil functions
51%
Ciepichal J. , Kubler A.
|
|
tom 46
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nr 3
17
Measuring chemotaxis of polymorphonuclear leukocytes with the Sparse-Pore polycarbonate membrane in the boyden chamber: chemotactic activity of rheumatoid synovial fluid
51%
Bignold L. P.
|
1992
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tom 40
|
nr 1
18
The effects of 4-chloro-ortho-toluidine [Fast Red TR] acute intoxication on rats and guinea pigs. Part III: The effect in vitro on viability of rat thymic and splenic lymphocytes, and on guinea pig granulocyte adherence, chemotaxis and phagocytosis
51%
Godlewski A. , Brzezinski P. M. , Dobek-Smiech J. , Fortak W.
|
|
nr 4
19
Polymorphonuclear leukocytes [PMN] activity in peripheral blood in patients with esophageal carcinoma
51%
Jablonska E. , Pietruska Z. , Furman M. , Kozlowski M.
Archivum Immunologiae et Therapiae Experimentalis
|
1994
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tom 42
|
nr 5-6
20
Cyclic nucleotide analogs as prospective drugs
51%
Schwede F. , Genieser H. G. , Jastorff B.
Cellular and Molecular Biology Letters
|
1999
|
tom 04
|
nr 3
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