ABSTRACT
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Subject(s)
Humans , Female , Middle Aged , Arthropod Venoms/therapeutic use , Lymphohistiocytosis, Hemophagocytic/immunology , Immunotherapy/methods , Cytokines/analysis , Multiple Organ Failure/complicationsABSTRACT
The research was aimed at microstructure characterization of the reaction products formed between molten aluminium and CoO single crystal during a sessile drop wettability test performed in vacuum at 700 and 1000 degrees C for 120 min using contact heating procedure. The solidified Al/CoO couples were sectioned and used for cutting thin foils with focused ion beam. The transmission electron microscopy and energy dispersive X-ray spectroscopy were used for microstructure and local chemical analysis. The interaction of molten aluminium with CoO substrate at 700 degrees C caused the formation of a corrugated 10-40 microm thick reaction zone (RZ). It consisted of aluminium matrix and Al(2)O(3) crystallites varying in size, i.e. of approximately 0.2 microm near the Al drop/RZ interface, growing up to 1-2 microm at the RZ centre and very fine nano-crystallites near the RZ/CoO interface. The reaction of aluminium with CoO at 1000 degrees C produced much thicker RZ of approximately 280 microm characterized by layered microstructure of alternating fine crystalline Al(2)O(3) and coarser Al(13)Co(4) layers. Moreover, at the RZ/CoO interface the presence of a cobalt layer was also identified.
ABSTRACT
Nano-composite layers of Au nano-crystallites embedded in amorphous silica matrix were obtained by a radio-frequency co-sputtering technique. Glass or single crystal silicon wafers were chosen as substrates. After deposition, the layers were heat treated at 900 degrees C for 60 min. Microstructure of the layers was investigated using a TECNAI G(2) FEG SuperTwin (200 kV) transmission electron microscope. Thin foils were cut using a focused ion beam Quanta 3D. The investigations confirmed that the applied process allowed obtaining nano-composite layers containing spherical Au crystallites of average size of approximately 3 nm embedded in an amorphous silica matrix. Some of the nano-crystallites were twinned. The layers were heat treated in subsequent step and rise of the crystallite average size up to 5.5 nm confirming activation of diffusion processes was seen. Presence of irregularly shaped Au crystallites in the latter layers indicates incomplete sintering due to short annealing time.
ABSTRACT
In the work a case of an excessive functional activity of core of hyper suprarenal gland is presented. It is caused by atypical overgrowth of the left suprarenal gland. The cyst observed on the left kidney covering pathologically the changed suprarenal gland was an additional diagnostic difficulty.