From manuscript catalogues to a handbook of Syriac literature: Modeling an infrastructure for Syriaca.org

Despite increasing interest in Syriac studies and growing digital availability of Syriac texts, there is currently no up-to-date infrastructure for discovering, identifying, classifying, and referencing works of Syriac literature. The standard reference work (Baumstark's Geschichte) is over ninety years old, and the perhaps 20,000 Syriac manuscripts extant worldwide can be accessed only through disparate catalogues and databases. The present article proposes a tentative data model for Syriaca.org's New Handbook of Syriac Literature, an open-access digital publication that will serve as both an authority file for Syriac works and a guide to accessing their manuscript representations, editions, and translations. The authors hope that by publishing a draft data model they can receive feedback and incorporate suggestions into the next stage of the project.Comment: Part of special issue: Computer-Aided Processing of Intertextuality in Ancient Languages. 15 pages, 4 figure

Q0906+6930: The Highest-Redshift Blazar

We report the discovery of a radio-loud flat-spectrum QSO at z=5.47 with properties similar to those of the EGRET gamma-ray blazars. This source is the brightest radio QSO at z>5, with a pc-scale radio jet and a black hole mass estimate >10^{10}M_\odot. It appears to be the most distant blazar discovered to date. High energy observations of this source can provide powerful probes of the background radiation in the early universe.Comment: To appear in the Astrophysical Journal Letters. 5pp, 3figure

Modeling a Body of Literature in TEI: The New Handbook of Syriac Literature

The New Handbook of Syriac Literature (NHSL) is a born-digital TEI-encoded reference work for the study of Syriac literature. The first volume, Bibliotheca Hagiographica Syriaca Electronica, was published by Syriaca.org in 2016 using a simple TEI schema to describe a single genre (hagiography) (Saint-Laurent et al. 2016; see also Saint-Laurent 2016, Zanetti 2016). Past TEI-encoding practice has focused on describing specific manuscripts or creating editions of works. By contrast, the NHSL seeks to describe abstract or conceptual works (including unpublished ones) and to relate them to people, places, and other works, as well as to the manuscripts, editions, and translations that embody them. Two key features of this encoding model include using for description of works and fully leveraging @source for scholarly citations. In preparation for expanding the NHSL to include other genres, Syriaca.org is revising the TEI schema used for hagiographic works. Among other revisions, the new model will employ RDF classes and properties as @type and @ref values, respectively, in order to aid RDF serialization. The authors actively seek feedback, suggestions, and criticism concerning this revised schema

Syriaca.org: New Digital Tools for the Study of the Medieval Middle East

National Endowment for the Humanities, International Balzan Foundation, Mellon Foundatio

Blazar Counterparts for 3EG Sources at -40 < decl. < 0: Pushing South Through the Bulge

Supplementing existing survey data with VLA observations, we have extended $\gamma-$ray counterpart identifications down to decl. = -40$^\circ$ using our Figure of Merit approach. We find blazar counterparts for $\sim$ 70% of EGRET sources above decl. = -40$^\circ$ away from the Galaxy. Spectroscopic confirmation is in progress, and spectra for $\sim$ two dozen sources are presented here. We find evidence that increased exposure in the bulge region allowed EGRET to detect relatively faint blazars; a clear excess of non-blazar objects in this region however argues for an additional (new) source class.Comment: ApJ accepte

Scattering of Several Multiply Charged Extremal D=5 Black Holes

The moduli space metric for an arbitrary number of extremal D=5 black holes with arbitrary relatively supersymmetric charges is found.Comment: 12 pages, ReVTeX. Minor typos corrected, including an unimportant sign for which the corresponding comment was removed. One reference adde

Phase II Proof-of-Concept Trial of the Orexin Receptor Antagonist Filorexant (MK-6096) in Patients with Major Depressive Disorder.

BackgroundWe evaluated the orexin receptor antagonist filorexant (MK-6096) for treatment augmentation in patients with major depressive disorder.MethodsWe conducted a 6-week, double-blind, placebo-controlled, parallel-group, Phase II, proof-of-concept study. Patients with major depressive disorder (partial responders to ongoing antidepressant therapy) were randomized 1:1 to once-daily oral filorexant 10 mg or matching placebo.ResultsDue to enrollment challenges, the study was terminated early, resulting in insufficient statistical power to detect a prespecified treatment difference; of 326 patients planned, 129 (40%) were randomized and 128 took treatment. There was no statistically significant difference in the primary endpoint of change from baseline to week 6 in Montgomery Asberg Depression Rating Scale total score; the estimated treatment difference for filorexant-placebo was -0.7 (with negative values favoring filorexant) (P=.679). The most common adverse events were somnolence and suicidal ideation.ConclusionsThe interpretation of the results is limited by the enrollment, which was less than originally planned, but the available data do not suggest efficacy of orexin receptor antagonism with filorexant for the treatment of depression. (Clinical Trial Registry: clinicaltrials.gov: NCT01554176)

Unanticipated influence of coordination mechanisms on physician workstyles and ED operational efficiency

The coordination of activities in a work context has been examined by many disciplines and in recent years the role of information systems and other artifacts has become increasingly prominent. The emergency department (ED) of a hospital in a large US city is used to study how information systems and other coordinating mechanisms affect how physicians choose to perform their work and how such choices can impact the ED’s overall operational performance. The study used direct observation of the work performed in the ED, interviews of physicians, nurses and other ED staff members, and the analysis of historical performance data. The key findings were that the existing coordination mechanisms are a mix of fixed and mobile, computer and paper-based information systems, and other artifacts. The workstyles adopted by physicians were shaped by incidental characteristics of these coordination mechanisms. Some workstyles appear to have adverse, albeit unintended, effects on aspects of the department’s operational performance

Terrain classification using circular polarimetric features

Conventional representations of polarization response are referred to a horizontally and vertically polarized basis. Recent studies by Freeman and Durden, van Zyl, and others suggest that alternative polarimetric features which more easily resolve the contributions of simple scattering mechanisms such as odd-bounce, even-bounce, and diffuse scattering could offer several advantages in terrain classification. The circular polarization covariance matrix is a potential source of such features. In this paper, we derive its relationship to the Stokes matrix, describe some of its properties, and compare the utility of linear and circular polarimetric features in classifying an AIRSAR scene containing urban, park, and ocean terrain

Improved Constraints on Isotropic Shift and Anisotropies of the Speed of Light using Rotating Cryogenic Sapphire Oscillators

We demonstrate that Michelson-Morley tests, which detect direction-dependent anisotropies in the speed of light, can also be used to place limits upon isotropic deviations of the vacuum speed of light from $c$, as described by the photon sector Standard Model Extension (SME) parameter $\tilde{\kappa}_{tr}$. A shift in the speed of light that is isotropic in one inertial frame implies anisotropic shifts in others. Using observer Lorentz covariance, we derive the time-dependent variations in the relative resonance frequencies of a pair of electromagnetic resonators that would be generated by such a shift in the rest frame of the Sun. A new analysis of a recent experimental test of relativity using this result constrains $\tilde{\kappa}_{tr}$ with a precision of $7.4\times10^{-9}$. This represents the first constraint on $\tilde{\kappa}_{tr}$ by a Michelson-Morley experiment and the first analysis of a single experiment to simultaneously set limits on all nine non-birefringent terms in the photon sector of the SME