نتایج جستجو برای: electronmicroscopy
تعداد نتایج: 200 فیلتر نتایج به سال:
Fabrication of environmentally safe C2ZnSnS4 (CZTS) photovoltaic thin films pure kesterite state is crucial. We have preparedCZTS by sol-gel dip-coating process from chloride-based chemicals. After vacuum-annealed at 550°C, the optical andstructural characters were further examined UV–vis spectroscopy, X-ray diffraction (XRD), scanning electronmicroscopy (SEM), and energy dispersive spectroscop...
Although clinical presentation of fibrillary glomerulonephritis is similar to most forms of glomerulonephritis, it is usually difficult to make the diagnosis. Clinical manifestations include proteinuria, microscopic haematuria, nephrotic syndrome, and impairment of renal function. A diagnosis of fibrillary glomerulonephritis is only confirmed by renal biopsy and it must comprise electronmicrosc...
The effects of topical and systemic administration of various glucocorticoids on the density of epidermal Langerhans cells (LC) were studied in guinea pigs. Glucocorticoids, such as betamethasone dipropionate and valerate, caused a marked decrease in LC demonstrable by staining for cell membrane ATPase activity and Ia antigens. By electronmicroscopy, LC also showed morphologic alterations. The ...
Hypothalamic neurosecretory systems are fundamental regulatory circuits influenced by thyroid hormone. Monocarboxylate-transporter-8 (MCT8)-mediated uptake of thyroid hormone followed by type 3 deiodinase (D3)-catalyzed inactivation represent limiting regulatory factors of neuronal T3 availability. In the present study we addressed the localization and subcellular distribution of D3 and MCT8 in...
The distribution of surface IgE on human basophils was studied using fluorescence microscopy and immunoferritin electronmicroscopy. Redistribution of the IgE was dose, time and temperature dependent and required divalent anti-IgE. Cells which can release histamine in vitro were indistinguishable in these respects from cells which cannot. The redistribution was unaffected by the presence or abse...
With the goal of facilitating the development of surface micromachined polysilicon MEMS with postprocessed on-chip circuitry, we have evaluated the impact of a 1200 C 16-h anneal upon chemical-vapor-deposited (CVD) polysilicon under a variety of processing conditions. The results show that undoped polysilicon has a final stress of +10–20 MPa even when the films are vastly different as deposited...
Single crystalline cubic spinel LiMn2O4 nanowires were synthesized by hydrothermal method and the precursor calcinations. The phase structures and morphologies were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and high-resolution transmission electronmicroscopy (HRTEM). Galvanostatic charging/discharging cycles of as-prepared LiMn2O4 nanowires w...
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