Autor: Majchrzak, A - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Microstructural characterization of cast magnesium matrix composites by Raman microscopy
Autorzy:: Malik, M. A.
Braszczyńska-Malik, K. N.
Majchrzak, K.
Powiązania:: https://bibliotekanauki.pl/articles/380033.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: magnesium matrix composites
SiC
Mg2Si
Raman spectroscopy
kompozyt magnezowy
spektroskopia Ramana
Opis:: Cast magnesium matrix composites reinforced with silicon carbide particles were investigated by using Raman microscopy. 3C, 4H and 6H polytypes of SiC particles were identified in the investigated composites. Additionally, Mg₂Si compound was detected by Raman microscopy in the composites microstructure.
Źródło:: Archives of Foundry Engineering; 2013, 13, 1; 95-98
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Microstructural analysis of AM50/Mg2Si cast magnesium composites
Autorzy:: Malik, M. A.
Majchrzak, K.
Braszczyńska-Malik, K. N.
Powiązania:: https://bibliotekanauki.pl/articles/380454.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: stop magnezu AM50
Mg2Si
krzemek magnezu
kompozyt metalowy
AM50 magnesium alloy
magnesium silicide
metal matrix composites
Opis:: AM50/Mg2Si composites containing 5.7 wt. % and 9.9 wt. %. of Mg2Si reinforcing phase were prepared successfully by casting method. The microstructure of the cast AM50/Mg2Si magnesium matrix composites was investigated by light microscopy and X-ray diffractometry (XRD). The microstructure of these composites was characterized by the presence of \alfa-phase (a solid solution of aluminium in magnesium), Mg17Al12 (\gamma-phase), Al8Mn5 and Mg2Si. It was demonstrated that the Mg2Si phase was formed mainly as primary dendrites and eutectic.
Źródło:: Archives of Foundry Engineering; 2012, 12, 4; 109-112
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Density of tumor-associated macrophages (TAMs) and expression of their growth factor receptor MCSF-R and CD14 in canine mammary adenocarcinomas of various grade of malignancy and metastasis
Autorzy:: Krol, M.
Pawlowski, K.
Majchrzak, K.
Dolka, I.
Abramowicz, A.
Szyszko, K.
Motyl, T.
Powiązania:: https://bibliotekanauki.pl/articles/32107.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: adenocarcinoma
canine adenocarcinoma
density
dog
expression
growth factor
immunohistochemistry
immunology
malignancy
mammary adenocarcinoma
metastasis
tissue sample
tumour microenvironment
tumour-associated macrophage
Opis:: Several years ago, the presence of macrophages in the tumor microenvironment was thought to be an inflammatory response to kill the cancer cells. Now, this is clear that the inflammatory cells that exit blood vessels and migrate to the tumor tissue play an important role in cancer progression. Various cells present in the tumor microenvironment enhance cancer growth and invasiveness by secretion of tumor-enhancing products. That is why tumors should not be treated as only aggregates of cancer cells but as separate structures. Macrophages form a major component of the inflammatory infiltration in tumors, where they are termed tumor-associated macrophages (TAMs). To the best of our knowledge, up-to-date there were no studies on tumor associated macrophages and the role of the tumor microenvironment in tumor invasion/metastasis in dogs. This is the first study performed to asses if the number of TAMs and expression of MCSF-R (macrophages colony stimulating factor receptor) and CD14 (LPS co-receptor) are associated with the grade of tumor malignancy and its ability to metastasize. We have performed immunohistochemical analysis of 50 canine mammary adenocarcinomas of various grade of malignancy (1st, 2nd, 3rd) and tumors that gave local or distant metastases. The results indicate that in dogs, similarly to humans and mice, the number of tumor associated macrophages is related to the cancer ability to metastasize. Our results also indicate that the expression of MCSF-R and, what is particularly new finding, CD14 is associated with tumor malignancy and its ability to metastasize. Hence, these molecules play a role in tumor progression, metastasis and microenvironment interactions. These results show that in dogs we should treat the tumor as a whole organ rather than just try to eliminate the cancer cells.
Źródło:: Polish Journal of Veterinary Sciences; 2011, 14, 1
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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