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- C P Martín, D Sánchez-Ruiz
- 1999

We show that U(1) Yang-Mills theory on noncommutative IR 4 can be renormalized at the one-loop level by multiplicative dimensional renormalization of the coupling constant and fields of the theory. We compute the beta function of the theory and conclude that the theory is asymptotically free. We also show that the Weyl-Moyal matrix defining the deformed… (More)

- M H Witte, M J Bernas, C P Martin, C L Witte
- Microscopy research and technique
- 2001

The lymph vascular system parallels the blood vasculature and as one of its key functions returns liquid and solutes to the bloodstream, including macromolecules that have escaped from blood capillaries and entered the interstitium. In conjunction with interspersed lymph nodes and lymphoid organs, the lymphatic vasculature also acts as a conduit for… (More)

- J M Gracia-Bondía, C P Martín
- 2000

We discuss the noncommutative counterparts of chiral gauge theories and compute the associated anomalies.

- Christopher P Martin, Matthew O Blunt, +4 authors Uwe Thiele
- Physical review letters
- 2007

We have achieved highly localized control of pattern formation in two-dimensional nanoparticle assemblies by direct modification of solvent dewetting dynamics. A striking dependence of nanoparticle organization on the size of atomic force microscope-generated surface heterogeneities is observed and reproduced in numerical simulations. Nanoscale features… (More)

- E Pauliac-Vaujour, A Stannard, +5 authors U Thiele
- Physical review letters
- 2008

The growth of fingering patterns in dewetting nanofluids (colloidal solutions of thiol-passivated gold nanoparticles) has been followed in real time using contrast-enhanced video microscopy. The fingering instability on which we focus here arises from evaporatively driven nucleation and growth in a nanoscopically thin precursor solvent film behind the… (More)

- C P Martín, F Ruiz Ruiz
- 2000

U(1) gauge theory on non-commutative Minkowski space-time in the Feynman-'t Hooft background gauge is studied. In particular, UV divergences and non-commutative IR divergent contributions to the two, three and four-point functions are explicitly computed at one loop. We show that the negative sign of the beta function results from paramagnetism –producing… (More)

- C P Martín
- 2000

We discuss both the UV and IR origin of the one-loop triangle gauge anomalies for noncommutative nonabelian chiral gauge theories with fundamental, adjoint and bi-fundamental fermions for U(N) groups. We find that gauge anomalies only come from planar triangle diagrams, the non-planar triangle contributions giving rise to no breaking of the Ward identies.… (More)

- C P Martin, F Ruiz Ruiz
- 1995

We compute the beta function at one loop for Yang-Mills theory using as regulator the combination of higher covariant derivatives and Pauli-Villars determinants proposed by Faddeev and Slavnov. This regularization prescription has the appealing feature that it is manifestly gauge invariant and essentially four-dimensional. It happens however that the… (More)

- Christopher P Martin, Robert L Talbert, David S Burgess, Jay I Peters
- Pharmacotherapy
- 2007

STUDY OBJECTIVES
To determine whether use of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) is associated with a reduced rate of severe sepsis, and to further characterize the effect of statins on the frequency of organ dysfunction in patients with severe sepsis.
DESIGN
Retrospective cohort study.
SETTING
University-associated… (More)

- Christopher P Martin, Robert L Talbert
- Pharmacotherapy
- 2005

Aspirin resistance is a poorly characterized phenomenon, whereby certain patients do not benefit from the antithrombotic effect of aspirin. The frequency of aspirin resistance is unknown, but estimates range from 5-60%. The mechanism of aspirin resistance also is unknown; proposed mechanisms are poor patient compliance, poor aspirin absorption, increased… (More)