4,594 research outputs found
‘The voice is the guide to the experience as well as the experience itself’: An interview with non zero one
This is the author accepted manuscript. The final version is available from the publisher via the DOI in this record.Since 2009, non zero one – a London-based collective of artists with a background and interest
in theatre but working across media and performance disciplines – has devised a series of
unexpected, challenging but also light-hearted and inviting experiences of immersion. Whilst
embracing a variety of techniques and contemporary media, one of the key features of the
company’s work is the exploration of audience interaction through the use of headphones,
typically in promenade and/or site-specific performance contexts. Following a first section that
questions the role of voice in (theatrical) sonic immersion, the text unfolds as a dialogue
between practitioner-scholar Konstantinos Thomaidis and non zero one artist and theatre
director Sarah Butcher. The interview lends an attentive ear to the role of voice in the
company’s work, from pre-recorded instruction to live audio interaction
(1E,4E)-1-(3-Nitrophenyl)-5-phenylpenta-1,4-dien-3-one
In the title compound, C17H13NO3, the dihedral angle between the benzene rings is 31.21 (5)°. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds occur. A C—H⋯π interaction is also indicated
Prior events predict cerebrovascular and coronary outcomes in the PROGRESS trial
<p><b>Background and Purpose:</b> The relationship between baseline and recurrent vascular events may be important in the targeting of secondary prevention strategies. We examined the relationship between initial event and various types of further vascular outcomes and associated effects of blood pressure (BP)–lowering.</p>
<p><b>Methods:</b> Subsidiary analyses of the Perindopril Protection Against Recurrent Stroke Study (PROGRESS) trial, a randomized, placebo-controlled trial that established the benefits of BP–lowering in 6105 patients (mean age 64 years, 30% female) with cerebrovascular disease, randomly assigned to either active treatment (perindopril for all, plus indapamide in those with neither an indication for, nor a contraindication to, a diuretic) or placebo(s).</p>
<p><b>Results:</b> Stroke subtypes and coronary events were associated with 1.5- to 6.6-fold greater risk of recurrence of the same event (hazard ratios, 1.51 to 6.64; P=0.1 for large artery infarction, P<0.0001 for other events). However, 46% to 92% of further vascular outcomes were not of the same type. Active treatment produced comparable reductions in the risk of vascular outcomes among patients with a broad range of vascular events at entry (relative risk reduction, 25%; P<0.0001 for ischemic stroke; 42%, P=0.0006 for hemorrhagic stroke; 17%, P=0.3 for coronary events; P homogeneity=0.4).</p>
<p><b>Conclusions:</b> Patients with previous vascular events are at high risk of recurrences of the same event. However, because they are also at risk of other vascular outcomes, a broad range of secondary prevention strategies is necessary for their treatment. BP–lowering is likely to be one of the most effective and generalizable strategies across a variety of major vascular events including stroke and myocardial infarction.</p>
5-Acetyl-4-(2-chlorophenyl)-6-methyl-3,4-dihydropyrimidine-2(1H)-thione
In the title molecule, C13H13ClN2OS, the heterocyclic ring adopts a flattened boat conformation with the plane through the four coplanar atoms making a dihedral angle of 85.6 (1)° with the benzene ring, which adopts an axial orientation. The thionyl, acetyl and methyl groups all have equatorial orientations. Intermolecular N—H⋯O, N—H⋯S and C—H⋯S hydrogen bonds are found in the crystal structure. A weak C—H⋯π interaction involving the benzene ring also occurs
Absolute calibration of the LOPES antenna system
Radio emission in extensive air showers arises from an interaction with the
geomagnetic field and is subject of theoretical studies. This radio emission
has advantages for the detection of high energy cosmic rays compared to
secondary particle or fluorescence measurement methods. Radio antennas like the
LOPES30 antenna system are suited to investigate this emission process by
detecting the radio pulses. The characteristic observable parameters like
electric field strength and pulse length require a calibration which was done
with a reference radio source resulting in an amplification factor representing
the system behavior in the environment of the KASCADE-Grande experiment.
Knowing the amplification factor and the gain of the LOPES antennas LOPES30 is
calibrated absolutely for systematic analyses of the radio emission.Comment: 5 pages, Proceedings of International Workshop on Acoustic and Radio
EeV Neutrino detection Activities: ARENA, May 17-19, 2005, DESY Zeuthe
1,3-Bis(4-fluorophenyl)-N,N′-(propane-1,3-diylidene)dihydroxylamine
The title compound, C15H12F2N2O2, crystallizes with two molecules (A and B) in the asymmetric unit. Both aromatic rings of both molecules are disordered over two orientations [occupancy ratios of 0.768 (3):0.232 (3) and 0.770 (3):0.230 (3) for molecule A and 0.789 (3):0.211 (3) and 0.789 (3):0.211 (3) for molecule B]. The dihedral angles between the planes of the major and minor components of the disordered aromatic rings are 72.0 (4) and 71.2 (4)° for molecule A, and 70.2 (4) and 71.5 (2)° for molecule B. In the crystal, both molecules form inversion dimers with R
2
2(6) ring motifs via pairs of intermolecular O—H⋯N hydrogen bonds. The dimers are linked, forming zigzag C(7) chains along the c axis. Weak C—H⋯π interactions help to consolidate the packing
(2E)-3-(4-Bromophenyl)-1-(3-chlorophenyl)prop-2-en-1-one
In the title compound, C15H10BrClO, the dihedral angle between mean planes of the bromo- and chloro-substituted benzene rings is 46.2 (2)° compared to 45.20 (9)° in the structure with the Cl substituent in the meta position of the aromatic ring. The dihedral angles between the mean plane of the prop-2-ene-1-one group and the mean planes of the 4-bromophenyl and 3-chlorophenyl rings are 28.7 (5) and 24.2 (4)°, respectively. In the crystal, weak intermolecular C—H⋯π interactions occur
(2E)-1-(3-Chlorophenyl)-3-(4-chlorophenyl)prop-2-en-1-one
The title compound, C15H10Cl2O, is a chalcone with 3-chlorophenyl and 4-chlorophenyl substituents bonded at the opposite ends of a propenone group, the biologically active region. The dihedral angle between mean planes of these two chloro-substituted benzene rings is 46.7 (7)° compared to 46.0 (1) and 32.4 (1)° in similar published sructures. The angles between the mean plane of the prop-2-en-1-one group and the mean planes of the 3-chlorophenyl and 4-chlorophenyl rings are 24.1 (2) and 29.63°, respectively. While no classical hydrogen bonds are present, weak intermolecular C—H⋯π-ring interactions are observed, which contribute to the stability of crystal packing
(2E)-1-(2-Bromophenyl)-3-(4-bromophenyl)prop-2-en-1-one
The title compound, C15H10Br2O, is a chalcone with 2-bromophenyl and 4-bromophenyl rings bonded to opposite sides of a propenone group. The dihedral angle between mean planes of the benzene rings is 71.3 (1)°. The angle between the mean plane of the prop-2-ene-1-one group and the mean planes of the 2-bromophenyl and 4-bromophenyl rings are 64.2 (9) and 71.3 (1)°, respectively. A weak intermolecular C—H⋯O interaction and two weak C—Br⋯π interactions are observed, which contribute to the stability of the crystal packing
Stochastic B-series and order conditions for exponential integrators
We discuss stochastic differential equations with a stiff linear part and
their approximation by stochastic exponential integrators. Representing the
exact and approximate solutions using B-series and rooted trees, we derive the
order conditions for stochastic exponential integrators. The resulting general
order theory covers both It\^{o} and Stratonovich integration
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