NMR relaxation rate in non-centrosymmetric superconductors

The spin-lattice relaxation rate of nuclear magnetic resonance in a clean superconductor without inversion center is calculated for arbitrary pairing symmetry and band structure, in the presence of strong spin-orbit coupling.Comment: 4 page

Training New Dental Health Providers in the U.S. (Full Report)

This 52 page report explores the interest and need to establish new midlevel dental providers in the U.S. The genesis of this interest is concern about access to care for underserved populations whose higher oral disease rates and unmet oral care needs are well documented.  This document was published December 2009 and updated June 2010

Intellectual Slavery?: The Doctrine of Inevitable Disclosure of Trade Secrets

This note will discuss the Seventh Circuit\u27s analysis and the potential impact of the PepsiCo decision. The author will ultimately conclude that application of the inevitable disclosure theory in actions to prevent employers from working for competitors creates a substantial risk for employees, impedes their mobility, limits their options and strips them of their bargaining power. Additionally, this note will argue that general acceptance of the inevitable disclosure theory could have a serious impact on a wide range of industries, stifling the dissemination of general technical knowledge and economic growth

Training New Dental Health Providers in the U.S. (Policy Brief)

This five page report examines several of the policy issues which are key in determining the future of dental therapy in the United States. This document was published December 2009 and updated June 2010

Intellectual Slavery?: The Doctrine of Inevitable Disclosure of Trade Secrets

This note will discuss the Seventh Circuit\u27s analysis and the potential impact of the PepsiCo decision. The author will ultimately conclude that application of the inevitable disclosure theory in actions to prevent employers from working for competitors creates a substantial risk for employees, impedes their mobility, limits their options and strips them of their bargaining power. Additionally, this note will argue that general acceptance of the inevitable disclosure theory could have a serious impact on a wide range of industries, stifling the dissemination of general technical knowledge and economic growth

Training New Dental Health Providers in the U.S. (Executive Summary)

This eight page Executive Summary concludes that the need to train new midlevel dental providers in the U.S. holds significant promise to expand the availability of basic dental care within larger systems of quality dental care delivery. This document was published December 2009 and updated June 2010

Calabi-Yau 3-folds from 2-folds

We consider type IIA string theory on a Calabi-Yau 2-fold with D6-branes wrapping 2-cycles in the 2-fold. We find a complete set of conditions on the supergravity solution for any given wrapped brane configuration in terms of SU(2) structures. We reduce the problem of finding a supergravity solution for the wrapped branes to finding a harmonic function on R$\times$CY$_2$. We then lift this solution to 11-dimensions as a product of R$^{(4.1)}$ and a Calabi-Yau 3-fold. We show how the metric on the 3-fold is determined in terms of the wrapped brane solution. We write down the distinguished (3,0) form and the K{\"a}hler form of the 3-fold in terms of structures defined on the base 2-d complex manifold. We discuss the topology of the 3-fold in terms of the D6-branes and the underlying 2-fold. We show that in addition to the non-trivial cycles inherited from the underlying 2-fold there are $N-1$ new 2-cycles. We construct closed (1,1) forms corresponding to these new cycles. We also display some explicit examples. One of our examples is that of D6-branes wrapping the 2-cycle in an A$_1$ ALE space, the resulting 3-fold has $h^{(1,1)}=N$, where $N$ is the number of D6-branes.Comment: 30 page

Signature of superconducting states in cubic crystal without inversion symmetry

The effects of absence of inversion symmetry on superconducting states are investigated theoretically. In particular we focus on the noncentrosymmetric compounds which have the cubic symmetry $O$ like Li$_2$Pt$_3$B. An appropriate and isotropic spin-orbital interaction is added in the Hamiltonian and it acts like a magnetic monopole in the momentum space. The consequent pairing wavefunction has an additional triplet component in the pseudospin space, and a Zeeman magnetic field $\bf{B}$ can induce a collinear supercurrent $\bf{J}$ with a coefficient $\kappa(T)$. The effects of anisotropy embedded in the cubic symmetry and the nodal superconducting gap function on $\kappa(T)$ are also considered. From the macroscopic perspectives, the pair of mutually induced $\bf{J}$ and magnetization ${\bf{M}}$ can affect the distribution of magnetic field in such noncentrosymmetric superconductors, which is studied through solving the Maxwell equation in the Meissner geometry as well as the case of a single vortex line. In both cases, magnetic fields perpendicular to the external ones emerge as a signature of the broken symmetry.Comment: 16 pages in pre-print forma

Spontaneous kidney rupture in polyarteritis nodosa presenting as an acute abdomen

CITATION: Edelstein, C. L. & Welke, H. 1991. Spontaneous kidney rupture in polyarteritis nodosa presenting as an acute abdome. South African Medical Journal, 79:52-53.The original publication is available at http://www.samj.org.zaAn acute abdomen in a patient with polyarteritis nodosa (PAN) is a perplexing and challenging problem for both the physician and the surgeon.Publisher’s versio

Spontaneous kidney rupture in polyarteritis nodosa presenting as an acute abdomen

CITATION: Edelstein, C. L. & Welke, H. 1991. Spontaneous kidney rupture in polyarteritis nodosa presenting as an acute abdome. South African Medical Journal, 79:52-53.The original publication is available at http://www.samj.org.zaAn acute abdomen in a patient with polyarteritis nodosa (PAN) is a perplexing and challenging problem for both the physician and the surgeon.Publisher’s versio