Acceleration-assisted entanglement harvesting and rangefinding

We study entanglement harvested from a quantum field through local interaction with Unruh-DeWitt detectors undergoing linear acceleration. The interactions allow entanglement to be swapped locally from the field to the detectors. We find an enhancement in the entanglement harvesting by two detectors with anti-parallel acceleration over those with inertial motion. This enhancement is characterized by the presence of entanglement between two detectors that would otherwise maintain a separable state in the absence of relativistic motion (with the same distance of closest approach in both cases). We also find that entanglement harvesting is degraded for two detectors undergoing parallel acceleration in the same way as for two static, comoving detectors in a de Sitter universe. This degradation is known to be different from that of two inertial detectors in a thermal bath. We comment on the physical origin of the harvested entanglement and present three methods for determining distance between two detectors using properties of the harvested entanglement. Information about the separation is stored nonlocally in the joint state of the accelerated detectors after the interaction; a single detector alone contains none. We also find an example of entanglement sudden death exhibited in parameter space.Comment: 17 pages, 6 figures. Version 2 updated to address referee comments and minor correction

Characterization of Alternative Grains Used in the Brewing Process and Analysis of Product Parameters

In recent months, an interest has arose in whether or not gluten free beers due in fact have gluten in them. During the first part of my research, a few gluten free beers were tested using an ELIZA (EZ Gluten) test to determine if there was any gluten in the beer (this test would be used later on the grains). The results showed that the gluten free beers did in fact not have gluten in them. After testing the beers, I will utilize alternate grains (sorghum, rice, corn, quinoa) to determine if any gluten is extracted during the fermentation process. During the process, standard tests used during the brewing process will be used on the alternative grain fermentation to analyze that the grains are a plausible alternative to standard grains used (barley, malt, etc.). The tests to be run include hydrometer readings to test specific gravity, a Brix test to determine sugar content and consumption, and a total protein assay to determine the proteins extracted by the fermentation process

Going South: Tracing Race and Region in the Post-Emancipation Black Atlantic

The demise of American slavery in 1865 put black Americans in motion to an unprecedented degree. Freed slaves and their descendants migrated from the plantations in the rural South to destinations around the globe. Travelling in a variety of new roles – as missionaries, journalists, agronomists, scientists, athletes, performers, entrepreneurs and political activists – African Americans gained international visibility, inspiring other oppressed populations in the colonial world to struggle for their liberation

B Physics - A Theoretical Review

This overview of what we can hope to learn from high-statistics experiments in B physics in the next few years includes: (a) a review of parameters of the Cabibbo-Kobayashi-Maskawa (CKM) Matrix; (b) direct determination of magnitudes of CKM elements; (c) forthcoming information from studies of kaons; (d) CP violation in B decays; (e) aspects of rate measurements; (f) the role of charm-anticharm annihilation; (g) remarks on tagging; and (h) effects beyond the standard model.Comment: 23 pages, latex, 4 figures, further corrections to reference

Chemotaxis cluster 1 proteins form cytoplasmic arrays in Vibrio cholera and are stabilized by a double signaling domain receptor DosM

Nearly all motile bacterial cells use a highly sensitive and adaptable sensory system to detect changes in nutrient concentrations in the environment and guide their movements toward attractants and away from repellents. The best-studied bacterial chemoreceptor arrays are membrane-bound. Many motile bacteria contain one or more additional, sometimes purely cytoplasmic, chemoreceptor systems. Vibrio cholerae contains three chemotaxis clusters (I, II, and III). Here, using electron cryotomography, we explore V. cholerae’s cytoplasmic chemoreceptor array and establish that it is formed by proteins from cluster I. We further identify a chemoreceptor with an unusual domain architecture, DosM, which is essential for formation of the cytoplasmic arrays. DosM contains two signaling domains and spans the two-layered cytoplasmic arrays. Finally, we present evidence suggesting that this type of receptor is important for the structural stability of the cytoplasmic array

Thailandepsin A

Thailandepsin A [systematic name: (E)-(1S,5S,6R,9S,20R)-6-[(2S)-butan-2-yl]-5-hy­droxy-20-[2-(meth­yl­sulfan­yl)eth­yl]-2-oxa-11,12-dithia-7,19,22-triaza­bicyclo­[7.7.6]docosa-15-ene-3,8,18,21-tetra­one], C23H37N3O6S3, is a newly reported [Wang et al. (2011). J. Nat. Prod. doi:10.1021/np200324x] bicyclic depsipeptide that has potent histone deacetyl­ase inhibitory activity and broad-spectrum anti­proliferative activity. The absolute configuration of thailandepsin A has been determined from the anomalous dispersion and the stereochemistry of all chiral C atoms. Intra­molecular N—H⋯O and N—H⋯S hydrogen bonds occur. Inter­molecular N—H⋯O and O—H⋯O hydrogen bonds are observed in the crystal structure

Are inner disc misalignments common? ALMA reveals an isotropic outer disc inclination distribution for young dipper stars

Dippers are a common class of young variable star exhibiting day-long dimmings with depths of up to several tens of per cent. A standard explanation is that dippers host nearly edge-on (id ≈ 70°) protoplanetary discs that allow close-in (10 au) disc resolved by ALMA and that inner disc misalignments may be common during the protoplanetary phase. More than one mechanism may contribute to the dipper phenomenon, including accretion-driven warps and ‘broken’ discs caused by inclined (sub-)stellar or planetary companions

TQM implementation: An empirical examination and proposed generic model

Total quality management (TQM) is considered by many as an important quality and business performance improvement tool. The popularity of the concept has led to an explosion of TQM related literature. A careful review of the literature suggests that most publications recount the experiences or perceptions of the authors or deal with single case organisations. Furthermore, there is a dearth of empirical research and literature dealing with TQM's implementation process. This paper reports the findings of a research project that empirically examined the process of TQM implementation in a sample of organisations widely regarded as leading exponents of TQM. The paper presents a non-prescriptive model of the TQM implementation process derived from the findings and proposes an "outcome driven" approach as an alternative to the more commonplace TQM implementation strategies