In this article and the companion paper [1] we address the question of how one might obtain the semiclassical limit of ordinary matter quantum fields (QFT) propagating on curved spacetimes (CST) from full fledged Quantum General Relativity (QGR), starting from first principles. We stress that we do not claim to have a satisfactory answer to this question, rather our intention is to ignite a dis...

Driving under the influence (DUI) and DUI drugs (DUID) law enforcement (LE) cases (n 5 12,082) where whole blood samples were submitted to ChemaTox Laboratory, Inc. in Boulder, CO, for testing were examined. Of these 12,082 cases, there were 4,235 cannabinoid screens (CS) requested. Samples that yielded a positive CS (n 5 2,621) were further analyzed. A total of 1,848 samples were confirmed for...

Agent-based modelling (ABM) is a complex problem-solving approach that can be employed in early-stage parametric design, and certain design applications may benefit from such bottom-up strategy. This research investigates the potential of ABM for structural optimization. A case study form-found cantilevered truss presented has doubly curved shape over regular grid, resulting individual members ...

Looping is a crucial early phase during heart development, as the initially straight heart tube (HT) deforms into a curved tube to lay out the basic plan of the mature heart. This paper focuses on the first phase of looping, called c-looping, when the HT bends ventrally and twists dextrally (rightward) to create a c-shaped tube. Previous research has shown that bending is an intrinsic process, ...

Conventional, straight keyboards remain the most popular design among keyboards sold and used with personal computers despite the biomechanical benefits offered by alternative keyboard designs. Some typists indicate that the daunting medical device-like appearance of these alternative 'ergonomic' keyboards is the reason for not purchasing an alternative keyboard design. The purpose of this rese...

The Alu156 promoter isolated from the Bacillus subtilis bacteriophage SP82 is dependent on curved DNA upstream of the -35 region for efficient function. Short DNA insertions of 6-29 base pairs were used to simultaneously change the linear placement and rotational orientation of this curved DNA relative to the -35 region. When these mutant promoters were analyzed in vivo using transcriptional fu...

spring back is responsible for inaccuracy of press formed sheet product. therefore, prediction of spring back is important for precise forming of stampings. to predict the amount of spring back many successful attempts have been made for simple cases such as single curved and u or v shape sheet metals. however, for more complex shapes containing double curves or double variable curved surfaces ...

there have been some experimental tests on hollow curved-steel struts with thin-walled square sections, in order to investigate their general behavior, particularly their capacity for bearing differing loads. one set of square tubes are cold-formed into segments of circular arcs with curvature radii, equal to 4000 mm. different lengths of curved struts are fabricated so as to cover a practical ...