Physical states in canonically quantized, finite, 4 dimensional quantum gravity. Minisuperspace Asktekar–Klein–Gordon model. Abstract This is the second paper in a series outlining an algorithm to consistently quantize four dimensional gravity in Ashtekar variables. We put to use the machinery and techniques developed in the first paper for a simple example in minisuperspace, highlighting the s...

BACKGROUND Vigorous physical activity (VPA) declines from adolescence into adulthood, and social disparities in VPA exist. Physical activity is understudied in the college setting. METHODS VPA during high school and college was examined among 10,437 students attending 119 four-year colleges using gender-stratified logistic regression analyses. RESULTS Fewer students engaged in VPA in colleg...

Any two-qubit state can be faithfully represented by a steering ellipsoid inside the Bloch sphere, but not every ellipsoid inside the Bloch sphere corresponds to a two-qubit state. We give necessary and sufficient conditions for when the geometric data describe a physical state and investigate maximal volume ellipsoids lying on the physical-unphysical boundary. We derive monogamy relations for ...

The United States is not only the world's largest economy, but it is also one of the world's largest consumers of natural resources. The country, which is inhabited by some 5% of the world's population, uses roughly one-fifth of the global primary energy supply and 15% of all extracted materials. This article explores long-term trends and patterns of material use in the United States. Based on ...

We show how the double cohomology of the String and Felder BRST charges naturally leads to the ring structure of c < 1 strings. The chiral ring is a ring of polynomials in two variables modulo an equivalence relation of the form x ≃ y for the (p+1, p) model. We also study the states corresponding to the edges of the conformal grid whose inclusion is crucial for the closure of the ring. We intro...

INTRODUCTION The aims of this study were to estimate all-cause and cause-specific mortality and years of life lost, investigated by disability-adjusted life-years (DALYs), due to colorectal cancer attributable to physical inactivity in Brazil and in the states; to analyze the temporal trend of these estimates over 25 years (1990-2015) compared with global estimates and according to the socioeco...

In this paper, we mainly investigate the W 2,s ⊗W L 2,s system, in which the matter and the Liouville subsystems generate W 2,s and W L 2,s algebras respectively. We first give a brief discussion of the physical states for corresponding W stings. The lower states are given by freezing the spin-2 and spin-s currents. Then, introducing two pairs of ghost-like fields, we give the realizations of W...

INTRODUCTION Dog walking is a purposeful physical activity that may have health benefits for humans and canines. A descriptive epidemiology of the contribution of dog walking to physically active lifestyles among dog walkers in the United States has not been previously reported. METHODS Data on youth and adults who reported walking for pet care trips (N = 1282) on the National Household Trave...

Stable glasses of indomethacin (IMC) were prepared by using physical vapor deposition. Wide-angle X-ray scattering measurements were performed to characterize the average local structure. IMC glasses prepared at a substrate temperature of 0.84 T(g) (where T(g) is the glass transition temperature) and a deposition rate of 0.2 nm/s show a broad, high-intensity peak at low q values that is not pre...