Results 1 to 10 of about 105,684 (172)

Breast density predicts endocrine treatment outcome in the adjuvant setting [PDF]

open access: yes, 2012
PMCID: PMC3680935See related research article by Kim et al., http://breast-cancer-research.com/content/14/4 ...
CS Wong   +12 more
core   +1 more source

Continuous Gauge and Supersymmetry Breaking for Open Strings on D-branes [PDF]

open access: yes, 1999
We consider freely acting orbifold compactifications, which interpolate in two possible decompactification limits between the supersymmetric type II string and the non-supersymmetric type 0 string.
Blumenhagen, Ralph   +2 more
core   +3 more sources

On a differential inclusion related to the Born-Infeld equations [PDF]

open access: yes, 2013
We study a partial differential relation that arises in the context of the Born-Infeld equations (an extension of the Maxwell's equations) by using Gromov's method of convex integration in the setting of divergence free ...
Dacorogna B.   +6 more
core   +2 more sources

Big Bang nucleosynthesis with a stiff fluid

open access: yes, 2010
Models that lead to a cosmological stiff fluid component, with a density $\rho_S$ that scales as $a^{-6}$, where $a$ is the scale factor, have been proposed recently in a variety of contexts.
Dutta, Sourish, Scherrer, Robert J.
core   +1 more source

On Tarski's axiomatic foundations of the calculus of relations [PDF]

open access: yes, 2016
It is shown that Tarski's set of ten axioms for the calculus of relations is independent in the sense that no axiom can be derived from the remaining axioms. It is also shown that by modifying one of Tarski's axioms slightly, and in fact by replacing the
Andréka, H.   +3 more
core   +3 more sources

Versatile Digital GHz Phase Lock for External Cavity Diode Lasers

open access: yes, 2009
We present a versatile, inexpensive and simple optical phase lock for applications in atomic physics experiments. Thanks to all-digital phase detection and implementation of beat frequency pre-scaling, the apparatus requires no microwave-range reference ...
Appel, Jürgen   +2 more
core   +1 more source

An obstacle to a decomposition theorem for near-regular matroids [PDF]

open access: yes, 2011
Seymour's Decomposition Theorem for regular matroids states that any matroid representable over both GF(2) and GF(3) can be obtained from matroids that are graphic, cographic, or isomorphic to R10 by 1-, 2-, and 3-sums.
Mayhew, Dillon   +2 more
core   +4 more sources

Multibubble cavitation inception

open access: yes, 2009
The inception of cavitation in multibubble cases is studied numerically and theoretically to show that it is different from that in single-bubble cases in several aspects.
Ida, Masato
core   +1 more source

Systemic risk in multiplex networks with asymmetric coupling and threshold feedback

open access: yes, 2015
We study cascades on a two-layer multiplex network, with asymmetric feedback that depends on the coupling strength between the layers. Based on an analytical branching process approximation, we calculate the systemic risk measured by the final fraction ...
Burkholz, Rebekka   +3 more
core   +1 more source

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