For n > 1, if the Seifert form of a knotted 2n − 1–sphere K in S 2n+1 has a metabo-lizer, then the knot is slice. Casson and Gordon proved that this is false in dimension three. However, in the three dimensional case it is true that if the metabolizer has a basis represented by a strongly slice link then K is slice. The question has been asked as to whether it is sufficient that each basis elem...

We report on the development of a slice culture of amphibian brain tissue. In particular, we cultured slices from Xenopus laevis tadpoles that contain the olfactory mucosae, the olfactory nerves, the olfactory bulb and the telencephalon. During 6 days in roller tubes the slices flattened, starting from 250 microm and decreasing to approximately 40 microm, corresponding to about three cell layer...

Background Cardiac MRI often requires a careful trade-off between SNR, spatio-temporal resolution and slice coverage. Providing fast acquisitions, high SNR and flow/motion robustness, bSSFP has become the dominant sequence. Drawbacks are high SAR levels and sensitivity to B0 inhomogeneities. For improving slice coverage, MSCAIPIRINHA [1] has emerged as a standard method. By simultaneously scann...

A slice of a program P with respect to a slicing criterion C ≡ ({var}, c_stmt) is a subset of the program which includes all statements that directly or indirectly affect the value of variable var in c_stmt [1,10–12]. A static slice includes all statements which might affect the value of var. It is constructed using program analysis techniques. A dynamic slice consists of only those statements ...

Ultrashort echo time imaging with half RF pulse excitation is sensitive to eddy currents induced by the slice-select gradient that distorts the half pulse slice profile. This work demonstrates improvements in the half pulse profile by using spatial saturation on both sides of the imaged slice to suppress the out-of-slice magnetization. This effectively improves the selectivity of the half pulse...

Introduction: The purpose of multimodal and co-registration In MR Neuroimaging is to fuse two or more sets images (T1, T2, fMRI, DTI, pMRI, …) for combining the different information into a composite correlated data set in order to visualization, re-alignment and generating transform to functional Matrix. Multimodal registration and motion correction in spinal cord MR Neuroimag...

Prime power fold cyclic branched covers along smoothly slice knots all bound rational homology balls. This phenomenon, however, does not characterize knots. In this paper, we give a new construction of non-slice that have the above property. The sliceness obstruction comes from computing twisted Alexander polynomials, and introduce techniques to simplify their calculation.

Methods Using overlapping multi-slice 2D single-shot fast spin echo sequences (Philips, 1.5T, TR = 15000 ms, TE = 100 ms, flip angle = 90 degrees, voxel size = 350 × 350 mm, slice thickness = 2.5 mm, SENSE factor = 2, partial Fourier-factor 5/8, slice duration 468 ms) in a fetus at 36 weeks gestation, we applied a novel GPU accelerated super-resolution algorithm for slice-volume registration to...

The algebraic genus of a knot is an invariant that arises when one considers upper bounds for the topological slice coming from Freedman’s theorem Alexander polynomial knots are topologically slice. This paper develops null-homologous twisting operations as tool studying and, consequently, bounding above. As applications we give new on genera torus and satellite knots.