446 research outputs found
Scribal practices in contact: two Minaic/Dadanitic mixed texts
NWOPGW-14-43Middle Eastern Studie
The Taymanitic onomasticon
The Taymanitic inscriptions, written in the c. mid-sixth century BCE, largely consist of personal names. While personal names cannot inform us directly on the language or ethnicity of their bearers, name-giving practices do reflect a choice made by the person bestowing it on someone. This article will focus on the personal names of the inscriptions; what they can tell us about their linguistic and cultural background, and how this might inform us on the cultural heritage of the authors of the Taymanitic inscriptions.Middle Eastern Studie
The writing culture of ancient Dadān: A description and quantitative analysis of linguistic variation
The Dadanitic inscriptions were carved in stone between 600 and 100 BCE in the north-west of the Arabian Peninsula. Most of the inscriptions are found in and around the ancient oasis of Dadān, modern-day Al-ʿUlā. The inscriptions display a remarkable amount of variation in both their language and level of execution. This work consists of two parts, part one contains a description and grammatical analysis of the corpus. This part will help contextualize the variation discussed in part two, by giving an overview of common and less common forms of the grammar, but also of the formulaic parts of and writing styles found in the inscriptions. Part two deals exclusively with the variation attested in the corpus, building on the description in part one. It offers a quantitative analysis of the variation in the corpus in an attempt to move beyond impressionistic accounts of its distribution and possible causes. NWO, promoties in de geesteswetenschappen beursMiddle Eastern Studie
Scribal practices in contact: two Minaic/Dadanitic mixed texts
NWOPGW-14-43Middle Eastern Studie
A real-space, rela-time method for the dielectric function
We present an algorithm to calculate the linear response of periodic systems
in the time-dependent density functional thoery, using a real-space
representation of the electron wave functions and calculating the dynamics in
real time. The real-space formulation increases the efficiency for calculating
the interaction, and the real-time treatment decreases storage requirements and
the allows the entire frequency-dependent response to be calculated at once. We
give as examples the dielectric functions of a simple metal, lithium, and an
elemental insulator, diamond.Comment: 17 pages, Latex, 5 figure
Many-body diagrammatic expansion in a Kohn-Sham basis: implications for Time-Dependent Density Functional Theory of excited states
We formulate diagrammatic rules for many-body perturbation theory which uses
Kohn-Sham (KS) Green's functions as basic propagators. The diagram technique
allows to study the properties of the dynamic nonlocal exchange-correlation
(xc) kernel . We show that the spatial non-locality of is
strongly frequency-dependent. In particular, in extended systems the
non-locality range diverges at the excitation energies. This divergency is
related to the discontinuity of the xc potential.Comment: 4 RevTeX pages including 3 eps figures, submitted to Phys. Rev. Lett;
revised version with new reference
Exchange-correlation kernels for excited states in solids
The performance of several common approximations for the exchange-correlation
kernel within time-dependent density-functional theory is tested for elementary
excitations in the homogeneous electron gas. Although the adiabatic
local-density approximation gives a reasonably good account of the plasmon
dispersion, systematic errors are pointed out and traced to the neglect of the
wavevector dependence. Kernels optimized for atoms are found to perform poorly
in extended systems due to an incorrect behavior in the long-wavelength limit,
leading to quantitative deviations that significantly exceed the experimental
error bars for the plasmon dispersion in the alkali metals.Comment: 7 pages including 5 figures, RevTe
Cigarette smoking is associated with higher thyroid hormone and lower TSH levels:The PREVEND study
PURPOSE: The extent to which smoking is associated with thyroid stimulating hormone (TSH), free thyroxine (FT4), and free triiodothyronine (FT3) when taking account of clinical variables including alcohol consumption is unclear. We aimed to determine associations of TSH, FT4, and FT3 levels with current smoking. METHODS: A cross-sectional study was performed in 5766 euthyroid participants (Prevention of Renal and Vascular End-Stage Disease cohort). Current smoking was determined by self-report, categorized as never, former, and current (≤20 and >20 cigarettes per day). Smoke exposure was determined by urinary cotinine. RESULTS: Current smoking of ≤20 and >20 cigarettes per day was associated with lower TSH and higher FT3 levels. FT4 levels were higher in subjects smoking 20 cigarettes per day. In agreement, TSH was inversely, whereas FT4 and FT3 levels were positively associated with urinary cotinine (P 30 g per day conferred higher TSH and lower FT3 levels. CONCLUSIONS: Cigarette smoking is associated with modestly higher FT4 and FT3, and lower TSH levels, partly opposing effects of alcohol consumption
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