Considerations for crossover design in clinical study [PDF]
This article introduces a crossover design that is often used in clinical studies, with the advantage of comparing treatment effects within one study subject. In particular, the advantages and disadvantages of the two-period, two-sequence crossover design (2 × 2 or AB/BA crossover design), which is widely used in clinical practice, are identified, and
Chi-Yeon Lim, Junyong In
openaire +5 more sources
Dimensional crossover in quantum critical metallic magnets [PDF]
Nearly magnetic metals often have layered lattice structures, consisting of coupled planes. In such a situation, physical properties will display, upon decreasing temperature or energy, a dimensional crossover from two-dimensional (2d) to three-dimensional (3d) behavior, which is particularly interesting near quantum criticality.
A. I. Larkin+8 more
arxiv +3 more sources
Band-edge BCS-BEC crossover in a two-band superconductor: physical properties and detection parameters [PDF]
Superconductivity in iron-based, magnesium diborides, and other novel superconducting materials has a strong multi-band and multi-gap character. Recent experiments support the possibillity for a BCS-BEC crossover induced by strong-coupling and proximity of the chemical potential to the band edge of one of the bands.
Guidini, Andrea, Perali, Andrea
arxiv +3 more sources
Crossover phenomena in spin models with medium-range interactions and self-avoiding walks with medium-range jumps [PDF]
We study crossover phenomena in a model of self-avoiding walks with medium-range jumps, that corresponds to the limit $N\to 0$ of an $N$-vector spin system with medium-range interactions. In particular, we consider the critical crossover limit that interpolates between the Gaussian and the Wilson-Fisher fixed point.
A. D. Sokal+108 more
arxiv +3 more sources
Crossover from the parity-conserving pair contact process with diffusion to other universality classes [PDF]
The pair contact process with diffusion (PCPD) with modulo 2 conservation (\pcpdt) [$2A\to 4A$, $2A\to 0$] is studied in one dimension, focused on the crossover to other well established universality classes: the directed Ising (DI) and the directed percolation (DP).
Hyunggyu Park+3 more
arxiv +3 more sources
Universality and Crossover of Directed Polymers and Growing Surfaces [PDF]
We study KPZ surfaces on Euclidean lattices and directed polymers on hierarchical lattices subject to different distributions of disorder, showing that universality holds, at odds with recent results on Euclidean lattices. Moreover, we find the presence of a slow (power-law) crossover toward the universal values of the exponents and verify that the ...
B. Derrida+9 more
arxiv +3 more sources
The Relationship between Chocolate Consumption and the Severity of Acne Lesions−A Crossover Study [PDF]
The aim of this study was to assess the relationship between the daily consumption of 50 g of chocolate with 85% cocoa content and the severity of acne lesions. Methods: The study involved 92 participants with acne who were divided into two groups, A (n =
Daszkiewicz M+2 more
europepmc +2 more sources
BCS-BEC crossover in a strongly correlated Fermi gas [PDF]
We study the BCS-BEC crossover in the strongly correlated regime of an ultra-cold rotating two component Fermi gas. Strong correlations are shown to generate an additional long-range interaction which results in a modified crossover region compared to the non-rotating situation.
Bhongale, S. G.+2 more
arxiv +4 more sources
A case-crossover study of air pollution exposure during pregnancy and the risk of stillbirth in Tehran, Iran. [PDF]
The growing fetus is very sensitive to environmental conditions. There is limited and conflicting evidence about the short-term effects of exposure to air pollutants on the pregnancy outcome.
Mohammadi Dashtaki N+4 more
europepmc +2 more sources
BackgroundAnxiety, stress and burnout are a growing reality among mental health professionals, impacting negatively on them and their clients. Mindfulness-based interventions (MBIs) have demonstrated effectiveness in mitigating these sufferings ...
Raquel Ruiz-Íñiguez+4 more
doaj +1 more source