J. Quintin

Publications36
h-index19
Citations829
Highly Influential Citations11
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Cosmological perturbations and stability of nonsingular cosmologies with limiting curvature
We revisit nonsingular cosmologies in which the limiting curvature hypothesis is realized. We study the cosmological perturbations of the theory and determine the general criteria for stability. For…
Evolution of Cataclysmic Variables and Related Binaries Containing a White-Dwarf
We present a binary evolution study of cataclysmic variables (CVs) and related systems with white dwarf accretors, including for example, AM CVn systems, classical novae, supersoft X-ray sources, and…
Detection, characterization, and screening of heme-binding molecules by mass spectrometry for malaria drug discovery.
TLDR
The described method detects heme-binding compounds by mass spectrometry, using dissociation of the drug-heme adducts to evaluate putative antiplasmodial activity and is an efficient early stage screening for complex mixtures like natural extracts.
Evolution of cosmological perturbations and the production of non-Gaussianities through a nonsingular bounce: Indications for a no-go theorem in single field matter bounce cosmologies
Assuming that curvature perturbations and gravitational waves originally arise from vacuum fluctuations in a matter-dominated phase of contraction, we study the dynamics of the cosmological…
Matter bounce cosmology with a generalized single field: non-Gaussianity and an extended no-go theorem
We extend the matter bounce scenario to a more general theory in which the background dynamics and cosmological perturbations are generated by a $k$-essence scalar field with an arbitrary sound…
Matter creation in a nonsingular bouncing cosmology
We examine reheating in the two-field matter bounce cosmology. In this model, the universe evolves from a matter-dominated phase of contraction to an Ekpyrotic phase of contraction before the…
Cosmological consequences of a principle of finite amplitudes
Over 30 years ago, Barrow & Tipler proposed the principle according to which the action integrated over the entire 4-manifold describing the universe should be finite. Here we explore the…
Searching for features of a string-inspired inflationary model with cosmological observations
The latest Planck results show a power deficit in the temperature anisotropies near $\ell \approx 20$ in the cosmic microwave background (CMB). This observation can hardly be explained within the…
Cuscuton gravity as a classically stable limiting curvature theory
Finding effective theories of modified gravity that can resolve cosmological singularities and avoid other physical pathologies such as ghost and gradient instabilities has turned out to be a rather…
Synthesis and biological evaluation of a series of tangeretin-derived chalcones.
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