8,503 research outputs found
Wordmuse
Wordmuse is an application that allows users to enter a song and a list of keywords to create a new song. Built on Spotify\u27s API, this project showcases the fusion of music composition and artificial intelligence. This paper also discusses the motivation, design, and creation of Wordmuse
Centrality Dependence of Azimuthal Anisotropy of Strange Hadrons in 200 GeV Au+Au Collisions
Measurements of azimuthal anisotropy for strange and multi-strange hadrons
are presented for the first time in their centrality dependence. The high
statistics results of v2(pT) allow for a more detailed comparison to
hydrodynamical model calculations. Number-of-constituent-quark scaling was
tested for different centrality classes separately. Higher order anisotropies
like v4(pT) are measured for multi-strange hadrons. While we observe agreement
between measured data and models a deeper understanding and refinement of the
models seem to be necessary in order to fully understand the details of the
data.Comment: 4 pages, 2 figures; Strange Quark Matter 2006 conference proceedings,
to appear in J. Phys.
Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (or Not)
Based on a survey questionnaire administered to 1478 R&D labs in the U.S. manufacturing sector in 1994, we find that firms typically protect the profits due to invention with a range of mechanisms, including patents, secrecy, lead time advantages and the use of complementary marketing and manufacturing capabilities. Of these mechanisms, however, patents tend to be the least emphasized by firms in the majority of manufacturing industries, and secrecy and lead time tend to be emphasized most heavily. A comparison of our results with the earlier survey findings of Levin et al. [1987] suggest that patents may be relied upon somewhat more heavily by larger firms now than in the early 1980s. For the protection of product innovations, secrecy now appears to be much more heavily employed across most industries than previously. Our results on the motives to patent indicate that firms patent for reasons that often extend beyond directly profiting from a patented innovation through either its commercialization or licensing. In addition to the prevention of copying, the most prominent motives for patenting include the prevention of rivals from patenting related inventions (i.e., patent blocking'), the use of patents in negotiations and the prevention of suits. We find that firms commonly patent for different reasons in discrete' product industries, such as chemicals, versus complex' product industries, such as telecommunications equipment or semiconductors. In the former, firms appear to use their patents commonly to block the development of substitutes by rivals, and in the latter, firms are much more likely to use patents to force rivals into negotiations.
Baryon and antibaryon production in hadron-hadron and hadron-nucleus interactions
Cascade baryon and anti-baryon yields have been measured in p+p and p+A
collisions. After extraction of the projectile component in p+A interactions
close similarities with A+A collisions concerning the nuclear enhancement
factors are observed. In addition the importance of effects related to
projectile isospin and to net baryon stopping is pointed out.Comment: 4 pages, 5 figures, Presented at Quark Matter 2002, Nantes, Franc
Resonance Production in STAR
The recent results from resonance production in central Au+Au and p+p
collisions at 200 GeV from the STAR experiment at RHIC
are presented and discussed.Comment: 7 pages, proceedings 19th Winter Workshop on Nuclear Dynamics,
Breckenridge, Colorado, USA, February 8-15, 200
Selected results on Strong and Coulomb-induced correlations from the STAR experiment
Using recent high-statistics STAR data from Au+Au and Cu+Cu collisions at
full RHIC energy I discuss strong and Coulomb-induced final state interaction
effects on identical () and non-identical () particle
correlations. Analysis of correlations reveals the strong and
Coulomb-induced FSI effects allowing for the first time to estimate space
extension of and sources and average shift between them. Source
imaging technique providing clean separation of these effects from effects due
to the source function itself is applied to one-dimensional relative momentum
correlation function of identical pions. For low momentum pions and/or
non-central collisions large departure from a single-Gaussian shape is
observed
How well does NLO pQCD describe strangeness in collisions at = 200 GeV in STAR?
We present measurements of the transverse momentum spectra for
, , and their antiparticles in p+p
collisions at . The extracted mid-rapidity yields and
are in agreement with previous experiments while
they have smaller statistical errors. We compare the measured spectra for
and to the latest available calculations from
NLO pQCD and see good agreement for the above 1.5 GeV/c.Comment: conference proceedings, Strangeness in Quark Matter 2004, 5 pages,
submitted to Journal Physics G, final version submitted to journal incl.
modifications requested by edito
Genome-wide association study identifies common and low-frequency variants at the AMHgene locus that strongly predict serum AMH levels in males
Anti-Müllerian hormone (AMH) is an essential messenger of sexual differentiation in the foetus and is an emerging biomarker of postnatal reproductive function in females. Due to a paucity of adequately sized studies, the genetic determinants of circulating AMH levels are poorly characterized. In samples from 2815 adolescents aged 15 from the ALSPAC study, we performed the first genome-wide association study of serum AMH levels across a set of ∼9 M ‘1000 Genomes Reference Panel’ imputed genetic variants. Genetic variants at the AMH protein-coding gene showed considerable allelic heterogeneity, with both common variants [rs4807216 (PMale = 2 × 10−49, Beta: ∼0.9 SDs per allele), rs8112524 (PMale = 3 × 10−8, Beta: ∼0.25)] and low-frequency variants [rs2385821 (PMale = 6 × 10−31, Beta: ∼1.2, frequency 3.6%)] independently associated with apparently large effect sizes in males, but not females. For all three SNPs, we highlight mechanistic links to AMH gene function and demonstrate highly significant sex interactions (PHet 0.0003–6.3 × 10−12), culminating in contrasting estimates of trait variance explained (24.5% in males versus 0.8% in females). Using these SNPs as a genetic proxy for AMH levels, we found no evidence in additional datasets to support a biological role for AMH in complex traits and diseases in men
Differential Nest Parasitism in Three Sympatric Social Wasps (Hymenoptera: Vespidae: Polistes spp.) in the West Indies
Jamaica's three species of social wasps were found nesting together in a suburban area. Their nests gave evidence of markedly different parasitoid loads in the sequence Polistes crinitus > P. dorsalis > P. major. Based on larval and pupal silk remains, the moth Chalcoela pegasalis appears to be the main nest parasitoid at this locality. Despite widely different parasitoid loads, the estimated per-nest production of adults was similar among the three species. This suggests a trade-off between investment in anti-parasitoid tactics and in other brood-care activities
- …