Purpose: The aim of this study is to determine and define differential magnetic resonance imaging (MRI) findings pituitary adenomas craniopharyngiomas. Materials methods: This retrospective analysis was performed on MR 45 41 craniopharyngiomas with solid cystic mixed appearance. MRI including shape ovoid, snowman, lobulation, chiasma compression, cavernous sinus invasion, 3rd ventricle calcific...

A series of ZnO/Al2O3 mixed oxide samples with varying Zn/Al ratio is prepared by coprecipitation, ageing, drying, and calcination. Samples are investigated in the state after drying and calcination. The applied methods include X-ray diffraction, solid-state 27Al magic-angle spinning nuclear magnetic resonance spectroscopy, transmission electron microscopy and thermogravimetric experiments coup...

We have developed an analytical equation of state (EOS) for magnetized fully-ionized plasmas that cover a wide range of temperatures and densities, from low-density classical plasmas to relativistic, quantum plasma conditions. This EOS directly applies to calculations of structure and evolution of strongly magnetized white dwarfs and neutron stars. We review available analytical and numerical r...

Desmoplastic infantile gangliogliomas (DIG) are rare intracranial tumors that typically occur in infants and involve the cerebral cortex and the leptomeninges. They are usually very large in size and partially cystic. Total resection, if possible, is the treatment of choice, without the need for further adjuvant therapy. We report 2 cases of DIG. In both cases, computed tomography and magnetic ...

Cation size effects were examined in the mixed A-site perovskites La0.5 Sm0.5 CrO3 and La0.5 Tb0.5 CrO3 prepared through both hydrothermal and solid-state methods. Atomically resolved electron energy loss spectroscopy (EELS) in the transmission electron microscope shows that while the La and Sm cations are randomly distributed, increased cation-radius variance in La0.5 Tb0.5 CrO3 results in reg...

Mixed ferrites Sm0.5Pr0.5FeO3 and Sm0.5Nd0.5FeO3 with orthorhombic perovskite structure isotypic with GdFeO3 were synthesized by solid-state reaction technique in air at 1473 K. Structural parameters obtained at room temperature prove a formation of continuous solid solutions in the SmFeO3-PrFeO3 and SmFeO3-NdFeO3 pseudo-binary systems. Sm0.5Pr0.5FeO3 and Sm0.5Nd0.5FeO3 show strongly anisotropi...

Adenoid cystic carcinoma is a malignant tumour involving the salivary glands, rarely developing in the nasopharynx. The biological behaviour of adenoid cystic carcinoma is characterized by slow growth rate, high tendency to local recurrence and metastatic spread. Its histological features are particularly important for prognostic prediction: solid pattern has the worst outcome. Initial presenta...

Magnetic poly (acrylonitrile-co-acrylic acid) (PAN-co-AA) composite nanofibers with different proportions of magnetic nanoparticles (MNPs) were fabricated using electrospinning technique. Electrospinning conditions like polymeric concentration, applied voltage, feeding rate, working distance, and collector type were explored and optimized to produce ultrafine- uniform size and bead free nanofib...

The suitability of [{(eta5-C5H5)Fe(eta5-C5H4)}4(eta4-C4)Co(eta5-C5H5)][PF6]2, [1][PF6]2, for use as a molecular quantum cellular automata (QCA) cell is demonstrated. To this end the structure of 1 in the solid state and the conversion of 1 to mono- and dicationic mixed-valence complexes have been accomplished. The latter compounds have been isolated as pure materials and characterized by IR, EP...