Obturator neuropathy was confirmed by electromyography and no compressive lesion of the nerve was seen on magnetic resonance imaging. The patient was treated conservatively and followed until she recovered fully.”
“The high pressure phase stability of intermetallic PtIn2 at ambient temperature
has click here been investigated using the synchrotron based angle dispersive x-ray diffraction technique, electrical resistance measurements, and first principles electronic structure calculations. The electrical resistance falls continuously up to 5 GPa and then remains almost constant up to 10 GPa. Beyond 10 GPa, the resistance increases and continues to increase up to 21 GPa which is the highest pressure of the present measurements. Consistent with this, the x-ray diffraction
measurements show a structural phase transition from the ambient cubic phase to a low symmetry orthorhombic phase beyond 10 GPa. Upon pressure release, the ambient cubic phase is obtained. Ab initio structural relaxations and total energy calculations predict the cubic to orthorhombic phase transitions at 10.5 GPa. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3574404]“
“The influence of chemical modifications, such as dewaxing with hexane and carbon learn more tetrachloride, and alkaline treatment, on the mechanical, thermal, and sorption properties of carnauba straw was investigated for the first time. Scanning electron microscopy showed that the solvent treatments removed the wax layer, exposing the straw fibrils. The straw water sorption capacity was very high, and the treatments turned it from Fickian to non-Fickian. The results show that the solvents used were very effective in removing the surface wax layer, whereas alkali, on the other hand, promoted a more marked
change in the chemical structure of the straw. The chemical treatments demonstrated that the wax surface layer was very important in determining the final properties of this material and that its removal reduced the thermal stability and Young’s modulus from 143 to 48 MPa and increased its hydrophilicity, changing the contact angle from 90 to 60 degrees. As a result, carnauba straw is a potentially promising material to be used, for example, as a MDV3100 natural fiber with polymer matrices for the manufacture of low-cost, ecofriendly composite materials. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: 1614-1621, 2011″
“In this paper we report what happens to a virgin oxide junction Pr0.5Ca0.5MnO3/SrTi0.95Nb0.05O3 (PCMO/Nb:STO), when it is subjected to cycling of voltage bias of moderate value (+/- 4 V). It is found that the initial cycling leads to formation of a permanent state of lower resistance where the lower resistance arises predominantly due to the development of a shunt across the device film (PCMO).