In this letter, using the effective action of non-BPS tachyonic D-branes, we construct the kink D1-brane super D-helix solution and its T-dual the D2-brane supertube. In the limit of zero angular momentum, both types of solutions collapse to zero radius, giving rise respectively to a degenerate string configuration corresponding to a particle travelling with the speed of light and to a static s...

Menkes kinky hair syndrome is an X-linked neurodegenerative disorder, causing tissue-specific increases in copper and metallothionein content. A mouse model is provided by hemizygotes for mutant alleles at the X-linked mottled locus. Herein we test the possibility that the primary defect in both species is in metallothionein gene regulation. We show that metallothionein-I messenger RNA (mRNA) (...

BACKGROUND Although clinical guidelines generally portray chronic low back pain as a condition with a poor prognosis this portrayal is based on studies of potentially unrepresentative survival cohorts. The aim of this study is to describe the prognosis of an inception cohort of people with chronic low back pain presenting for primary care. METHODS/DESIGN The study will be an inception cohort ...

[1] Buffy the Vampire Slayer and Angel have done a great deal to promote tolerance of alternative sexualities. The two programs are especially well known for their positive depictions of gay and lesbian sexuality. However, Buffy and Angel have also brought about another intriguing revolution in the representation of unorthodox sexual practices. Throughout the twelve seasons which comprise the B...

[1] Buffy the Vampire Slayer and Angel have done a great deal to promote tolerance of alternative sexualities. The two programs are especially well known for their positive depictions of gay and lesbian sexuality. However, Buffy and Angel have also brought about another intriguing revolution in the representation of unorthodox sexual practices. Throughout the twelve seasons which comprise the B...