4,109 research outputs found
Il sottotenente Gustl e La signorina Else
A. Schnitzler schuf mit seinen beiden Werken, Leutnant Gustl und Fr\ue4ulein Else ein einzigartiges Portrait der untergehenden Habsburgermonarchie. Im Leutnant Gustl wie in Fr\ue4ulein Else verarbeitet er literarisch den \ufcberholten Ehrenkodex, den immer mehr aufkeimenden Antisemitismus , die Langeweile des Einzelnen, die in Aggressivit\ue4t m\ufcndet sowie die Ich-losigkeit des modernen Menschen, der sich in dieser \u201eScheinwelt\u201c nicht mehr zurechtfindet, um nur einige Thematiken zu nennen. Um diese nun dem Leser nahezubringen wendet Schnitzler eine besondere stilistische Form an und zwar die des Inneren Monologs, der es erlaubt in die Seele seiner Figuren zu blicken
Iterative procedure for computing accessible information in quantum communication
We present an iterative algorithm that finds the optimal measurement for
extracting the accessible information in any quantum communication scenario.
The maximization is achieved by a steepest-ascent approach toward the extremal
point, following the gradient uphill in sufficiently small steps. We apply it
to a simple ad-hoc example, as well as to a problem with a bearing on the
security of a tomographic protocol for quantum key distribution.Comment: REVTeX, 4 pages, 1 figure, 1 tabl
Creating cellular diversity through transcription factor competition.
The development of blood cells has long served as a model system to study the generation of diverse mature cells from multipotent progenitors. The article by Org et al (2015) reveals how transcription factor competition on primed DNA templates may contribute to embryonic blood cell specification during the early stages of mesoderm development. The study not only provides new insights into the functionality of the key haematopoietic transcription factor Scl/Tal1, but also provides a potentially widely applicable framework for transcription factor-mediated cell fate specification.Research in the author’s laboratory is supported by Cancer Research UK, BBSRC, MRC, Leukaemia and Lymphoma Research, Leukemia and Lymphoma Society, Microsoft Research and core support grants from the Wellcome Trust to the Cambridge Institute for Medical Research and Wellcome Trust–MRC Cambridge Stem Cell Institute.This is the accepted manuscript of a paper published in The EMBO Journal (Göttgens B, The EMBO Journal 2015, 34, 691-693, doi:10.15252/embj.201591017). The final version is available at http://dx.doi.org/10.15252/embj.20159101
Quantum Cryptography: Security Criteria Reexamined
We find that the generally accepted security criteria are flawed for a whole
class of protocols for quantum cryptography. This is so because a standard
assumption of the security analysis, namely that the so-called square-root
measurement is optimal for eavesdropping purposes, is not true in general.
There are rather large parameter regimes in which the optimal measurement
extracts substantially more information than the square-root measurement.Comment: 4 pages, 4 figures. No substantial changes. Updated version as
published in PR
Results of flutter test OS7 obtained using the 0.14-scale space shuttle orbiter fin/rudder model number 55-0 in the NASA LaRC 16-foot transonic dynamics wind tunnel
A 0.14-scale dynamically scaled model of the space shuttle orbiter vertical tail was tested in a 16-foot transonic dynamic wind tunnel to determine flutter, buffet, and rudder buzz boundaries. Mach numbers between .5 and 1.11 were investigated. Rockwell shuttle model 55-0 was used for this investigation. A description of the test procedure, hardware, and results of this test is presented
Results of flutter test OS6 obtained using the 0.14-scale wing/elevon model (54-0) in the NASA LaRC 16-foot transonic dynamics wind tunnel
A 0.14-scale dynamically scaled model of the space shuttle orbiter wing was tested in the Langley Research Center 16-Foot Transonic Dynamics Wind Tunnel to determine flutter, buffet, and elevon buzz boundaries. Mach numbers between 0.3 and 1.1 were investigated. Rockwell shuttle model 54-0 was utilized for this investigation. A description of the test procedure, hardware, and results of this test is presented
Minimal qubit tomography
We present, and analyze thoroughly, a highly symmetric and efficient scheme
for the determination of a single-qubit state, such as the polarization
properties of photons emitted by a single-photon source. In our scheme there
are only four measured probabilities, just enough for the determination of the
three parameters that specify the qubit state, whereas the standard procedure
would measure six probabilities.Comment: 14 pages, 10 figures; final versio
Dietary Intake of Natural Sources of Docosahexaenoic Acid and Folate in Pregnant Women of Three European Cohorts
Background: Folic acid plays a fundamental role in cell division and differentiation. Docosahexaenoic acid (DHA) has been associated with infantile neurological and cognitive development. Thus, optimal intrauterine development and growth requires adequate supply of these nutrients during pregnancy. Methods: Healthy pregnant women, aged 18-41 years, were recruited in Granada (Spain; n = 62), Munich (Germany; n = 97) and Pecs (Hungary; n = 152). We estimated dietary DHA and folate intake in weeks 20 (w20) and 30 of gestation (w30) using a food frequency questionnaire with specific focus on the dietary sources of folate and DHA. Results: Both w20 and w30 Spanish participants had significantly higher daily DHA intakes (155 +/- 13 and 161 +/- 9 mg/1,000 kcal) than the German (119 +/- 9 and 124 +/- 12 mg/1,000 kcal; p = 0.002) and Hungarian participants (122 +/- 8 and 125 +/- 10 mg/1,000 kcal; p = 0.005). Hungarian women had higher folate intakes in w20 and w30 (149 +/- 5 and 147 +/- 6 mu g/1,000 kcal) than Spanish (112 +/- 2 and 110 +/- 2 mu g/1,000 kcal; p < 0.001) and German participants (126 +/- 4 and 120 +/- 6 mu g/1,000 kcal; p < 0.001), respectively. Conclusion: Dietary DHA and folate intake of pregnant women differs significantly across the three European cohorts. Only 7% of the participants reached the recommended folate intake during pregnancy, whereas nearly 90% reached the DHA recommended intake of 200 mg per day. Copyright (C) 2008 S. Karger AG, Base
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