We have performed SQUID-NMR measurements on rhodium nuclei at ultralow temperatures. With initial polarizations of up to p = 0.95, the susceptibility data showed clear indications of an antiferromagnetic tendency, but nevertheless no signs of nuclear magnetic ordering. The lowest actually measured nuclear temperature was 280 pK, whereas the lowest nuclear temperatures achieved were below 100 pK...

A scaling theory is applied in order to calculate the temperature dependence of the staggered magnetic susceptibility associated with the anti-ferromagnetism observed in high-temperature superconductors. In a logarithmic approximation, only a summation of the leading square logarithmic terms are taken into account, assuming the parquet approximation. We show that scaling theory can be applied t...

In the context of observational longitudinal studies, we explored the values of the number of participants and the number of repeated measurements that maximize the power to detect the hypothesized effect, given the total cost of the study. We considered two different models, one that assumes a transient effect of exposure and one that assumes a cumulative effect. Results were derived for a con...

(75)As and (31)P NMR studies are performed in PrCoAsO and NdCoPO respectively. The Knight shift data in PrCoAsO indicate the presence of an antiferromagnetic interaction between the 4f moments along the c axis in the ferromagnetic state of Co 3d moments. We propose a possible spin structure in this system. The (75)As quadrupolar coupling constant, νQ, increases continuously with decrease of tem...

We treated 12 patients with multilevel stenosis of the cervical canal after spondylosis or ossification of the posterior longitudinal ligament by an expansive open-door laminoplasty, stabilised by using an anchor system. The preoperative sagittal diameter of the canal was 9.8 mm(+/-2.2) which was increased to 16.1 mm(+/-2.9) after surgery. The mean expansion ratio of the canal was 64% (42 to 10...

Dear Editor, Anterior cervical discectomy and fusion (ACDF) and anterior cervical corpectomy and fusion (ACCF) are performed for decompression of the spine when the primary compressive pathology lies anterior to the spinal cord – prolapsed intervertebral discs (PID), ossifi ed posterior longitudinal ligament (OPLL), spondylodiscitis and retropulsion of fractured bony fragments. More specifi cal...

Expansive laminoplasty for ossification of the posterior longitudinal ligament (OPLL) has had favorable outcomes. Many modifications of expansive laminoplasty have been developed, including expansive laminoplasty with and without spinous process spacers (SPS). The purpose of this study was to determine whether surgical outcomes were similar between expansive laminoplasty surgeries with and with...

Cervical laminectomy has been known to cause postlaminectomy kyphosis and instability, often necessitating extensive anterior and posterior procedures with instrumentation for the stabilisation and correction of the deformity. We report a case of spontaneous stabilisation of postlaminectomy cervical kyphosis by anterior longitudinal ossification in the absence of an ossified posterior longitudi...

A model-free theoretical framework for a phenomenological description of spin-lattice relaxation by anomalous translational diffusion in inhomogeneous systems based on the fractional diffusion equation is developed. The dependence of the spin-lattice relaxation time on the size of the pores in porous glass Vycor is experimentally obtained and found to agree well with our theoretical predictions...

Citation Kobashi Y, Munetomo Y, Baba A, Yamazoe S, Mogami T. Evaluation of the ossification of the cervical posterior longitudinal ligament utilizing Xray, CT and MR imaging. Orthop Res Traumatol Open J. 2017; 2(1): 35-39. doi: 10.17140/ORTOJ-2-109 Volume 2 : Issue 1 Article Ref. #: 1000ORTOJ2109 Evaluation of the Ossification of the Cervical Posterior Longitudinal Ligament Utilizing X-Ray, CT ...