… The factors for which there was significant change at the P < 0.05 level are listed in Table
1. … Bilsky MH, Boland P, Lis E, et al. Single-stage posterolateral transpedicle approach for …

Chordomas are rare, malignant bone tumors of the skull-base and axial skeleton. Until recently,
there was no consensus among experts regarding appropriate clinical management of …

Determining the position of ourselves or our assets has always been important to humans.
Technology has helped us, from sextants to outdoor global positioning systems, but real-time …

The structure of RuO 2 (110) and the mechanism for catalytic carbon monoxide oxidation on
this surface were studied by low-energy electron diffraction, scanning tunneling microscopy, …

The diffraction of electromagnetic waves for light focused by a high numerical aperture lens
from a first material into a second material is treated. The second material has a different …

Purpose Standardized indications for treatment of tumor-related spinal instability are hampered
by the lack of a valid and reliable classification system. The objective of this study was to …

Objective The evolution of imaging techniques, along with highly effective radiation options
has changed the way metastatic epidural tumors are treated. While high-grade epidural …

The present report deals with the main aspects of the interaction of slow (impact velocity
typically below 1 au) multicharged ions (MCI) with atomically clean solid surfaces of metals, …

The oxidation of Pd (111) leads to an incommensurate surface oxide, which was studied by
the use of scanning tunneling microscopy, surface x-ray diffraction, high resolution core level …

We report a scanning tunneling microscopy (STM) study of the rutile TiO 2 (110) surface.
The surface was prepared by sputtering and annealing in an ultrahigh vacuum (UHV). After …