Search results

1

Application of Microwaves for Binder Content Assessment in Moulding Sands

100%

Nowak D.

Archives of Foundry Engineering

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2012

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issue 3

2

Effects of Moisture and Content of Moulding Sand Bentonite on the Electric Properties

100%

Nowak D.

Archives of Metallurgy and Materials

|

2018

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vol. 63

|

issue 4

3

The Impact of Microwave Penetration Depth on the Process of Heating the Moulding Sand with Sodium Silicate

100%

Nowak D.

Archives of Foundry Engineering

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2017

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vol. 17

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issue 4

4

Temperature can prime human peripheral blood neutrophils in a p38MAPKa-dependent manner

64%

Jozefowicz-Okonkwo G., Nowak D.

Archivum Immunologiae et Therapiae Experimentalis

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2004

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vol. 52

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issue 6

447-456

EN

Previous ex vivo experiments by others suggest that elevated body temperature can prime the respiratory burst of human neutrophils. The mechanism of the priming phenomenon induced by temperature has not been addressed so far. Furthermore, the priming temperature range was not defined. In the present study we explored, under in vitro conditions, the influence of febrile.range temperatures on reactive oxygen species (ROS) generation by human peripheral blood neutrophils. ROS production was measured using whole.blood luminol.dependent chemiluminescence. Two elements of signal transduction pathways, calcium and p38 mitogen.activated protein kinase alpha (p38MAPK alpha), frequently underlying neutrophil priming were also examined. Calcium levels in the cytosol of resting and fMLP.stimulated isolated neutrophils were measured with the Fura.2AM spectrofluorimetric method. The activity of p38MAPK alpha was assessed indirectly with a specific inhibitor of the kinase, SB 203580. The study revealed a priming effect at 38?C toward human peripheral blood neutrophil ROS production. Any con. comitant effect on calcium response was not observed. Instead, experiments with SB 203580, a specific inhibitor of p38MAPK alpha, pointed to an increased activity of the kinase as a molecular background of temperature.induced priming. However, the priming effect of temperature was confined to 38?C, while higher temperatures proved to exert no effect (39 and 40?C) or even inhibited ROS generation by neutrophils (43?C). Our study suggests a heterogeneous influence of temperature on human neutrophil functioning, including the prim. ing of the cells by a low.febrile.range temperature. It also suggests a p38MAPK alpha dependent molecular background of the priming phenomenon.

5

Research on Assessment of the Applicability of Malted Barley Binder in Moulding Sand Technology

54%

Samociuk B., Gal B., Nowak D., Samociuk B., Gal B., Nowak D.

Archives of Foundry Engineering

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2021

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issue 1

6

Microwave Absorption by Used Moulding and Core Sands

51%

Nowak D., Stachowicz M., Granat K., Pigiel M.

Archives of Foundry Engineering

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2012

|

issue 3

7

Measurement of Electrical Properties as Effectiveness Appraisal of Microwave Absorption by Moulding and Core Sands Subject to Microwave Utilization

51%

Nowak D., Granat K., Opyd B.

Archives of Metallurgy and Materials

|

2014

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issue 2

8

The Influence of Microwave Drying Parameters on the Properties of Synthetic Moulding Sands

46%

Nowak D., Gal B., Włodarska A., Granat K., Nowak D., Gal B., Włodarska A., Granat K.

Archives of Foundry Engineering

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2019

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vol. 19

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issue 4

9

Usefulness of Foundry Tooling Materials in Microwave Heating Process

45%

Granat K., Stachowicz M., Opyd B., Nowak D., Jaworski G.

Archives of Metallurgy and Materials

|

2013

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issue 3

10

Determination of Moisture Content in Synthetic Moulding Sand on the Grounds of Relative Permittivity Measurement

45%

Nowak D., Gal B., Granat K., Jaworski G., Więcławek R.

Archives of Metallurgy and Materials

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2017

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vol. 62

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issue 4

11

The Influence of Glassex Additive on Properties of Microwave-Hardened and Self-Hardened Moulding Sands with Water Glass

45%

Stachowicz M., Dobosz S. M., Jakubski J., Major-Gabryś K., Nowak D.

Archives of Foundry Engineering

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2012

|

issue 1

12

Morphometric and volumetric analysis of the middle cerebral artery in human fetuses

45%

Gielecki J., Zurada A., Kozlowska H., Nowak D., Loukas M.

Acta Neurobiologiae Experimentalis

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2009

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vol. 69

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issue 1

129-137

EN

The morphometrical and volumetrical changes of the middle cerebral artery (MCA) during the fetal period of development were analyzed by digital-image analysis system (DIAS). Examinations were performed on 304 MCAs from 152 brains of human fetuses ranging from the 12th to 40th weeks of gestation. MCAs were analyzed with respect to its branching from the internal carotid artery and its division into the main cortical branches. No statistically significant differences were found between the mean values of the diameter, length and volume of the left and right M1 segments of the MCAs in all studied age groups.

13

Studies of the Verwey Transition in Magnetite

33%

Tarnawski Z., Wiecheć A., Madej M., Nowak D., Owoc D., Król G., Kąkol Z., Kolwicz-Chodak L., KozŁowski A., Dawid T.

Acta Physica Polonica A

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2004

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vol. 106

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issue 5

771-775

EN

Studies of the specific heat and simultaneous AC magnetic susceptibility (ρ') and electric resistance of stoichiometric magnetite single crystal are presented. The temperature hysteresis of the Verwey transition is of 0.03 K found from the specific heat data confirming its first-order character. The continuous temporal change of ρ' at T_V can be switched off by an external magnetic field without affecting the transition. The electrical resistance decreases continuously with increasing temperature with a rapid change of slope at the point when the phase transition is completed. It was concluded that the magnetic degrees of freedom do not actively participate in the transition and that the entropy released at T_V may come from ordering electrons.

14

Graphene-Based Composite Membrane for Water Desalination

33%

Dybowski K., Kowalczyk P., Kula P., Jeziorna A., Atraszkiewicz R., Kołodziejczyk Ł., Zawadzki P., Nowak D., Kazimierczak T., Kucińska M.

Archives of Metallurgy and Materials

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2018

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vol. 63

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issue 3

15

Increased whole blood chemiluminescence in patients with chronic renal failure independent of hemodialysis treatment

33%

Rysz J., Potargowicz E., Banach M., Luczynska M., Stolarek R., Bialasiewicz P., Kasielski M., Cialkowska-Rysz A., Nowak D.

Archivum Immunologiae et Therapiae Experimentalis

|

2006

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vol. 54

|

issue 5

347-352

EN

Introduction: The luminol-enhanced whole blood chemiluminescence (LBCL) assay is a rapid assay for the measurement of reactive oxygen species (ROS) generation by circulating phagocytes. This study's aim was to determine if patients on maintenance hemodialysis (HD) and non-dialyzed patients with chronic renal failure (CRF) have altered LBCL and if dialysis itself affects ROS production in the blood. Materials and Methods: Twenty-six HD patients, 11 non-dialyzed patients with CRF, and 20 gender- and age-matched healthy controls were studied. Resting (rCl) and 210?5 M n-formyl-methionyl-leucyl-phenylalanine-stimulated LBCL (peak chemiluminescence: pCl, total light emission after agonist addition: tCl) calculated per 104 phagocytes present in the 3-l blood samples were measured with a Bio-Orbit? 1251 luminometer at 37?C for 11 min. Results: Prior to the HD session, median rCL, pCL, and tCL were 1.5, 3.0, and 2.8 times higher in HD patients than in healthy controls (p<0.01) and tended to increase at the end of the session. Significant increases in tCl were observed at 30 min and 240 min (end) of HD (1023.5 vs. 1810.6 vs. 2006.8 arbitrary unitss/104 phagocytes, n=9, p<0.05). Median pCl and tCl were 5.0 and 4.3 times higher in non-dialyzed patients with CRF than in healthy controls (p<0.001). However, no significant differences were found between pre- and post-HD LBCL of HD patients and the LBCL of non-dialyzed patients with renal failure. Conclusions: Blood from patients with renal failure generates elevated amounts of oxidants independently of HD treatment. This may add to the understanding of the nature of oxidative stress and suggests the need of antioxidant treatment in these patients.

16

Impact of the Method of Separating Graphene from the Growth Substrate on the Quality of the 2D Material Obtained

33%

Dybowski K., Romaniak G., Kula P., Jeziorna A., Kowalczyk P., Atraszkiewicz R., Kołodziejczyk Ł., Nowak D., Zawadzki P., Kucińska M., Dybowski K., Romaniak G., Kula P., Jeziorna A., Kowalczyk P., Atraszkiewicz R., Kołodziejczyk Ł., Nowak D., Zawadzki P., Kucińska M.

Archives of Metallurgy and Materials

|

2019

|

vol. 64

|

issue 4

Refine search results

Application of Microwaves for Binder Content Assessment in Moulding Sands

Effects of Moisture and Content of Moulding Sand Bentonite on the Electric Properties

The Impact of Microwave Penetration Depth on the Process of Heating the Moulding Sand with Sodium Silicate

Temperature can prime human peripheral blood neutrophils in a p38MAPKa-dependent manner

Research on Assessment of the Applicability of Malted Barley Binder in Moulding Sand Technology

Microwave Absorption by Used Moulding and Core Sands

Measurement of Electrical Properties as Effectiveness Appraisal of Microwave Absorption by Moulding and Core Sands Subject to Microwave Utilization

The Influence of Microwave Drying Parameters on the Properties of Synthetic Moulding Sands

Usefulness of Foundry Tooling Materials in Microwave Heating Process

Determination of Moisture Content in Synthetic Moulding Sand on the Grounds of Relative Permittivity Measurement

The Influence of Glassex Additive on Properties of Microwave-Hardened and Self-Hardened Moulding Sands with Water Glass

Morphometric and volumetric analysis of the middle cerebral artery in human fetuses

Studies of the Verwey Transition in Magnetite

Graphene-Based Composite Membrane for Water Desalination

Increased whole blood chemiluminescence in patients with chronic renal failure independent of hemodialysis treatment

Impact of the Method of Separating Graphene from the Growth Substrate on the Quality of the 2D Material Obtained