Numerical study of Anderson localization of terahertz waves in disordered waveguides

We present a numerical study of electromagnetic wave transport in disordered quasi-one-dimensional waveguides at terahertz frequencies. Finite element method calculations of terahertz wave propagation within LiNbO3 waveguides with randomly arranged air-filled circular scatterers exhibit an onset of Anderson localization at experimentally accessible length scales. Results for the average transmission as a function of waveguide length and scatterer density demonstrate a clear crossover from diffusive to localized transport regime. In addition, we find that transmission fluctuations grow dramatically when crossing into the localized regime. Our numerical results are in good quantitative agreement with theory over a wide range of experimentally accessible parameters both in the diffusive and localized regime opening the path towards experimental observation of terahertz wave localization.

Verordnung die hypothecarische Sicherung der jüdischen Pupillen Gelder bereffend ... 5. Januar 1775

Von Gottes Gnaden, Wir Wilhelm Landgraf und Erbprinz zu Hessen

Resistance prediction in AML: analysis of 4601 patients from MRC/NCRI, HOVON/SAKK, SWOG and MD Anderson Cancer Center

Therapeutic resistance remains the principal problem in acute myeloid leukemia (AML). We used area under receiver-operating characteristic curves (AUCs) to quantify our ability to predict therapeutic resistance in individual patients, where AUC=1.0 denotes perfect prediction and AUC=0.5 denotes a coin flip, using data from 4601 patients with newly diagnosed AML given induction therapy with 3+7 or more intense standard regimens in UK Medical Research Council/National Cancer Research Institute, Dutch–Belgian Cooperative Trial Group for Hematology/Oncology/Swiss Group for Clinical Cancer Research, US cooperative group SWOG and MD Anderson Cancer Center studies. Age, performance status, white blood cell count, secondary disease, cytogenetic risk and FLT3-ITD/NPM1 mutation status were each independently associated with failure to achieve complete remission despite no early death (‘primary refractoriness’). However, the AUC of a bootstrap-corrected multivariable model predicting this outcome was only 0.78, indicating only fair predictive ability. Removal of FLT3-ITD and NPM1 information only slightly decreased the AUC (0.76). Prediction of resistance, defined as primary refractoriness or short relapse-free survival, was even more difficult. Our limited ability to forecast resistance based on routinely available pretreatment covariates provides a rationale for continued randomization between standard and new therapies and supports further examination of genetic and posttreatment data to optimize resistance prediction in AML.

Vater, Sohn und Enkel : 2 Denkschriften ... dem ... Kaiser Alexander Nikolajewitsch dem Befreier 1863, dem regierenden Kaiser Alexander Alexandrowitsch ... zu dessen Krönung am 15. Mai 1883 ... eingereicht, zur Feier d. Mündigkeitserklärung ... des Großfürsten Thronfolgers Nikolai Alexandrowitsch am 6. Mai

veröffentlicht vom Sim[e]on Leon [v.] Schwabacher

Semitic studies in memory of Rev. Dr. Alexander Kohut

ed. by George Kohut

Cantate : Psalm 45 ; [Cantate aus Anlass der Feier der silbernen Hochzeit unseres ... Kaiserpaares ... Franz Joseph I. und ... Elisabeth Amalie Eugenia ; 24te April 1854 - 1879]

[in Musik gesetzt von] J[acob] Bachmann