Why so many significant phase III results in clinical trials?. (arXiv:1907.00185v2 [econ.GN] UPDATED)

Planning and execution of clinical research and publication of results should conform to the highest ethical standards, given that human lives are at stake. However, economic incentives can generate conflicts of interest for investigators, who may be inclined to withhold unfavorable results or even tamper with the data. Analyzing p-values reported to the ClinicalTrials.gov registry…

Subexponential LPs Approximate Max-Cut. (arXiv:1911.10304v1 [cs.DS])

We show that for every $\varepsilon > 0$, the degree-$n^\varepsilon$ Sherali-Adams linear program (with $\exp(\tilde{O}(n^\varepsilon))$ variables and constraints) approximates the maximum cut problem within a factor of $(\frac{1}{2}+\varepsilon’)$, for some $\varepsilon'(\varepsilon) > 0$. Our result provides a surprising converse to known lower bounds against all linear programming relaxations of Max-Cut, and hence resolves the extension…

Communication: Curing basis set overcompleteness with pivoted Cholesky decompositions. (arXiv:1911.10372v1 [physics.chem-ph])

The description of weakly bound electronic states is especially difficult with atomic orbital basis sets. The diffuse atomic basis functions that are necessary to describe the extended electronic state generate significant linear dependencies in the molecular basis set, which may make the electronic structure calculations ill-convergent. We propose a method where the over-complete molecular basis…

Arbitrary access temporal pulse cloaking and restoring in periodically poled lithium niobate. (arXiv:1911.10378v1 [physics.optics])

Temporal cloaks have inspired the innovation of research on security and efficiency of quantum and fiber communications for concealing temporal events. The existing temporal cloaking approaches possessing ps ~ns cloaking windows employed the third-order nonlinearity mostly. Here we explore a temporal cloak for perpetually concealing pulse events using high efficiency second-order nonlinearity. A temporal pulse…

The Liquid Argon In A Testbeam (LArIAT) Experiment. (arXiv:1911.10379v1 [physics.ins-det])

The LArIAT liquid argon time projection chamber, placed in a tertiary beam of charged particles at the Fermilab Test Beam Facility, has collected large samples of pions, muons, electrons, protons, and kaons in the momentum range 300-1400 MeV/c. This paper describes the main aspects of the detector and beamline, and also reports on calibrations performed…

Synthesis and Properties of Non-Curing Graphene Thermal Interface Materials. (arXiv:1911.10383v1 [physics.app-ph])

Development of the next generation thermal interface materials with high thermal conductivity is important for thermal management and packaging of electronic devices. We report on the synthesis and thermal conductivity measurements of non-curing thermal paste, i.e. grease, based on mineral oil with the mixture of graphene and few-layer graphene flakes as the fillers. It was…

Standardless EDXRF technique using bremsstrahlung radiation from a transmission type x-ray generator. (arXiv:1911.10396v1 [physics.atom-ph])

We demonstrate the use of bremsstrahlung radiation in energy dispersive x-ray fluorescence technique as a tool to perform elemental analysis of solid samples employed in inter-disciplinary science research. The bremsstrahlung radiation can be taken from a small, portable, transmission type x-ray generator. Theoretically generated bremsstrahlung spectra are found to be in good agreement with the…

Modified deformation behaviour of self-ion irradiated tungsten: A combined nano-indentation, HR-EBSD and crystal plasticity study. (arXiv:1911.10397v1 [physics.comp-ph])

Predicting the dramatic changes in material properties caused by irradiation damage is key for the design of future nuclear fission and fusion reactors. Self-ion implantation is an attractive tool for mimicking the effects of neutron irradiation. However, the damaged layer of implanted samples is only few microns thick, making it difficult to estimate macroscopic properties.…

Ground Truth Simulation for Deep Learning Classification of Mid-Resolution Venus Images Via Unmixing of High-Resolution Hyperspectral Fenix Data. (arXiv:1911.10442v1 [eess.IV])

Training a deep neural network for classification constitutes a major problem in remote sensing due to the lack of adequate field data. Acquiring high-resolution ground truth (GT) by human interpretation is both cost-ineffective and inconsistent. We propose, instead, to utilize high-resolution, hyperspectral images for solving this problem, by unmixing these images to obtain reliable GT…

Regularized and Smooth Double Core Tensor Factorization for Heterogeneous Data. (arXiv:1911.10454v1 [stat.ML])

We introduce a general tensor model suitable for data analytic tasks for heterogeneous data sets, wherein there are joint low-rank structures within groups of observations, but also discriminative structures across different groups. To capture such complex structures, a double core tensor (DCOT) factorization model is introduced together with a family of smoothing loss functions. By…