174 research outputs found
[arra]stre - a Data-driven Ballet
[arra]stre is a data-driven ballet performance that makes extensive use of visualisation with data generated from the choreography and dancers. Whilst visualisations of this kind are not uncommon in performance dance, what marks this work out is that the visualisation and choreography were treated as equal actors in the exploration of the theme rather than the visualisation either becoming the dominant character in the performance (with the dancers simply providing a trigger) or being completely passive - an echo of the movement
Electron effective mass in Sn-doped monoclinic single crystal -gallium oxide determined by mid-infrared optical Hall effect
The isotropic average conduction band minimum electron effective mass in
Sn-doped monoclinic single crystal -GaO is experimentally
determined by mid-infrared optical Hall effect to be
combining investigations on () and () surface cuts. This result
falls within the broad range of values predicted by theoretical calculations
for undoped -GaO. The result is also comparable to recent
density functional calculations using the
Gaussian-attenuation-Perdue-Burke-Ernzerhof hybrid density functional, which
predict an average effective mass of (arXiv:1704.06711
[cond-mat.mtrl-sci]). Within our uncertainty limits we detect no anisotropy for
the electron effective mass, which is consistent with most previous theoretical
calculations. We discuss upper limits for possible anisotropy of the electron
effective mass parameter from our experimental uncertainty limits, and we
compare our findings with recent theoretical results
Π€ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π³ΠΎΡΠΎΠ΄ΡΠΊΠΎΠΉ ΠΈΠ΄Π΅Π½ΡΠΈΡΠ½ΠΎΡΡΠΈ ΠΊΠ°ΠΊ ΡΠΏΠΎΡΠΎΠ± ΡΠ°Π·Π²ΠΈΡΠΈΡ ΡΡΡΠΈΡΡΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»Π° Π³.Π’ΠΎΠΌΡΠΊΠ°
Π‘Π»Π΅Π΄ΡΡΠ²ΠΈΠ΅ΠΌ Π³Π»ΠΎΠ±Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ ΡΡΠ°Π½ΠΎΠ²ΠΈΡΡΡ ΡΠ½ΠΈΡΠΈΠΊΠ°ΡΠΈΡ ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
Π³ΠΎΡΠΎΠ΄ΠΎΠ². ΠΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΡ Π½ΠΈΠ²Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈΡ
ΡΠ½ΠΈΠΊΠ°Π»ΡΠ½ΡΡ
ΡΠ΅ΡΡ: ΠΈΡ
ΠΊΡΠ»ΡΡΡΡΠ½ΠΎΠΉ, ΡΠΎΡΠΈΠ°Π»ΡΠ½ΠΎΠΉ ΠΈ Π²ΠΈΠ·ΡΠ°Π»ΡΠ½ΠΎΠΉ ΠΈΠ΄Π΅Π½ΡΠΈΡΠ½ΠΎΡΡΠΈ. ΠΡΠΎΡΠ΅ΡΡ ΠΏΠΎΡΡΠ΅ΠΏΠ΅Π½Π½ΠΎΠΉ ΡΡΡΠ°ΡΡ ΡΠ½ΠΈΠΊΠ°Π»ΡΠ½ΠΎΡΡΠΈ ΠΈ ΡΡΠ°Π΄ΠΈΡΠΈΠΉ Π³ΠΎΡΠΎΠ΄Π° Π½Π΅ΠΈΠ·Π±Π΅ΠΆΠ½ΠΎ Π²Π»Π΅ΡΠ΅Ρ Π·Π° ΡΠΎΠ±ΠΎΠΉ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π΅Π³ΠΎ ΠΏΡΠΈΠ²Π»Π΅ΠΊΠ°ΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π΄Π»Ρ ΡΡΡΠΈΡΡΠΎΠ². ΠΠΎΡΠΎΠ΄, Π±Π΅Π· ΡΡΠΊΠΎ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ "Π»ΠΈΡΠ°": ΡΠ·Π½Π°Π²Π°Π΅ΠΌΠΎΠ³ΠΎ Π²ΠΈΠ·ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΡΠ°Π·Π° ΠΈ ΡΡΡΠΎΠΉΡΠΈΠ²ΡΡ
ΡΠΌΡΡΠ»ΠΎΠ²ΡΡ
Π°ΡΡΠΎΡΠΈΠ°ΡΠΈΠΉ, Π½Π΅ΠΈΠ·Π±Π΅ΠΆΠ½ΠΎ, ΡΠ΄Π°Π΅Ρ ΡΠ²ΠΎΠΈ ΠΏΠΎΠ·ΠΈΡΠΈΠΈ Π½Π° ΡΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΌ Π²ΡΡΠΎΠΊΠΎ ΠΊΠΎΠ½ΠΊΡΡΠ΅Π½ΡΠ½ΠΎΠΌ ΡΡΠ½ΠΊΠ΅ ΡΡΡΠΈΡΡΡΠΊΠΈΡ
ΡΡΠ»ΡΠ³.The consequence of globalization is the unification of modern cities. There is a leveling of their unique features: their cultural, social and visual identity. The process of gradual loss of uniqueness and traditions. The city, without a pronounced "face": a recognizable visual image and stable semantic associations, inevitably, surrenders its positions in the modern highly competitive market of tourist services
THz-Driven Coherent Magnetization Dynamics in a Labyrinth Domain State
Terahertz (THz) light pulses can be used for an ultrafast coherent
manipulation of the magnetization. Driving the magnetization at THz frequencies
is currently the fastest way of writing magnetic information in ferromagnets.
Using time-resolved resonant magnetic scattering, we gain new insights to the
THz-driven coherent magnetization dynamics on nanometer length scales. We
observe ultrafast demagnetization and coherent magnetization oscillations that
are governed by a time-dependent damping. This damping is determined by the
interplay of lattice heating and magnetic anisotropy reduction revealing an
upper speed limit for THz-induced magnetization switching. We show that in the
presence of nanometer-sized magnetic domains, the ultrafast magnetization
oscillations are associated with a correlated beating of the domain walls. The
overall domain structure thereby remains largely unaffected which highlights
the applicability of THz-induced switching on the nanoscale.Comment: 10 pages, 8 figures and 54 reference
[pain]Byte VR Storytelling & Classical Ballet
This initial stage paper focuses on the Virtual Reality (VR) experience of the [pain]Byte ballet. The live and VR experience debut October 1st 2017, as part of the Brighton digital festival. Specifically, the development of the VR environment to compliment live performance by using the same choreography to create an option capture element of the VR story telling experience. Reviewing Virtual & Alternative reality gaming & storytelling works and the use of VR for chronic pain management (Chen, Win). Does the VR experience compare to that of the live theatre for the audience?
The data visualisations and VR environment will be continuations of the Network Simulator, [data]Storm 2015. We are visualising and comparing the pain pathway system to that of a social network. Linking pain signals to viral/negative messaging for some of the visuals. The main purpose of the pieces links to how βwe" present ourselves online, these better or veiled versions of ourselves. For chronic pain sufferers, this can be daily activity in the real world. The paper concludes by identifying some future directions for the research project.
The Ballet: [pain]Byte is a data driven dance classical ballet performance and VR (virtual reality) experience. [pain]Byte, is about chronic pain and biomedical engineering, in particular the use of implanted technology - neuromodulation (Al-Kaisey et al). Using data as a medium for storytelling, what it means to be in chronic pain. The live augmented theatre and VR experience research focuses on how an audienceβs exposure and understanding are impacted by the difference mediums used for [pain]byte
High-field high-repetition-rate sources for the coherent THz control of matter
Ultrashort flashes of THz light with low photon energies of a few meV, but strong electric or magnetic field transients have recently been employed to prepare various fascinating nonequilibrium states in matter. Here we present a new class of sources based on superradiant enhancement of radiation from relativistic electron bunches in a compact electron accelerator that we believe will revolutionize experiments in this field. Our prototype source generates high-field THz pulses at unprecedented quasicontinuous-wave repetition rates up to the MHz regime. We demonstrate parameters that exceed state-of-the-art laser-based sources by more than 2 orders of magnitude. The peak fields and the repetition rates are highly scalable and once fully operational this type of sources will routinely provide 1 MV/cm electric fields and 0.3 T magnetic fields at repetition rates of few 100 kHz. We benchmark the unique properties by performing a resonant coherent THz control experiment with few 10 fs resolution
Intestinal, extra-intestinal and systemic sequelae of Toxoplasma gondii induced acute ileitis in mice harboring a human gut microbiota
Background Within seven days following peroral high dose infection with
Toxoplasma gondii susceptible conventionally colonized mice develop acute
ileitis due to an underlying T helper cell (Th) -1 type immunopathology. We
here addressed whether mice harboring a human intestinal microbiota developed
intestinal, extra-intestinal and systemic sequelae upon ileitis induction.
Methodology/Principal findings Secondary abiotic mice were generated by broad-
spectrum antibiotic treatment and associated with a complex human intestinal
microbiota following peroral fecal microbiota transplantation. Within three
weeks the human microbiota had stably established in the murine intestinal
tract as assessed by quantitative cultural and culture-independent (i.e.
molecular 16S rRNA based) methods. At day 7 post infection (p.i.) with 50
cysts of T. gondii strain ME49 by gavage human microbiota associated (hma)
mice displayed severe clinical, macroscopic and microscopic sequelae
indicating acute ileitis. In diseased hma mice increased numbers of innate and
adaptive immune cells within the ileal mucosa and lamina propria and elevated
intestinal secretion of pro-inflammatory mediators including IFN-Ξ³, IL-12 and
nitric oxide could be observed at day 7 p.i. Ileitis development was
accompanied by substantial shifts in intestinal microbiota composition of hma
mice characterized by elevated total bacterial loads and increased numbers of
intestinal Gram-negative commensals such as enterobacteria and Bacteroides /
Prevotella species overgrowing the small and large intestinal lumen.
Furthermore, viable bacteria translocated from the inflamed ileum to extra-
intestinal including systemic compartments. Notably, pro-inflammatory immune
responses were not restricted to the intestinal tract as indicated by
increased pro-inflammatory cytokine secretion in extra-intestinal (i.e. liver
and kidney) and systemic compartments including spleen and serum.
Conclusion/Significance With respect to the intestinal microbiota composition
βhumanizedβ mice display acute ileitis following peroral high dose T. gondii
infection. Thus, hma mice constitute a suitable model to further dissect the
interactions between pathogens, human microbiota and vertebrate host immunity
during acute intestinal inflammation
Evolutionary Genetics of an S-Like Polymorphism in Papaveraceae with Putative Function in Self-Incompatibility
Papaver rhoeas possesses a gametophytic self-incompatibility (SI) system not homologous to any other SI mechanism characterized at the molecular level. Four previously published full length stigmatic S-alleles from the genus Papaver exhibited remarkable sequence divergence, but these studies failed to amplify additional S-alleles despite crossing evidence for more than 60 S-alleles in Papaver rhoeas alone.Using RT-PCR we identified 87 unique putative stigmatic S-allele sequences from the Papaveraceae Argemone munita, Papaver mcconnellii, P. nudicuale, Platystemon californicus and Romneya coulteri. Hand pollinations among two full-sib families of both A. munita and P. californicus indicate a strong correlation between the putative S-genotype and observed incompatibility phenotype. However, we also found more than two S-like sequences in some individuals of A. munita and P. californicus, with two products co-segregating in both full-sib families of P. californicus. Pairwise sequence divergence estimates within and among taxa show Papaver stigmatic S-alleles to be the most variable with lower divergence among putative S-alleles from other Papaveraceae. Genealogical analysis indicates little shared ancestral polymorphism among S-like sequences from different genera. Lack of shared ancestral polymorphism could be due to long divergence times among genera studied, reduced levels of balancing selection if some or all S-like sequences do not function in incompatibility, population bottlenecks, or different levels of recombination among taxa. Preliminary estimates of positive selection find many sites under selective constraint with a few undergoing positive selection, suggesting that self-recognition may depend on amino acid substitutions at only a few sites.Because of the strong correlation between genotype and SI phenotype, sequences reported here represent either functional stylar S-alleles, tightly linked paralogs of the S-locus or a combination of both. The considerable complexity revealed in this study shows we have much to learn about the evolutionary dynamics of self-incompatibility systems
Identification and characterization of maize microRNAs involved in the very early stage of seed germination
<p>Abstract</p> <p>Background</p> <p>MicroRNAs (miRNAs) are a new class of endogenous small RNAs that play essential regulatory roles in plant growth, development and stress response. Extensive studies of miRNAs have been performed in model plants such as rice, <it>Arabidopsis thaliana </it>and other plants. However, the number of miRNAs discovered in maize is relatively low and little is known about miRNAs involved in the very early stage during seed germination.</p> <p>Results</p> <p>In this study, a small RNA library from maize seed 24 hours after imbibition was sequenced by the Solexa technology. A total of 11,338,273 reads were obtained. 1,047,447 total reads representing 431 unique sRNAs matched to known maize miRNAs. Further analysis confirmed the authenticity of 115 known miRNAs belonging to 24 miRNA families and the discovery of 167 novel miRNAs in maize. Both the known and the novel miRNAs were confirmed by sequencing of a second small RNA library constructed the same way as the one used in the first sequencing. We also found 10 miRNAs that had not been reported in maize, but had been reported in other plant species. All novel sequences had not been earlier described in other plant species. In addition, seven miRNA* sequences were also obtained. Putative targets for 106 novel miRNAs were successfully predicted. Our results indicated that miRNA-mediated gene expression regulation is present in maize imbibed seed.</p> <p>Conclusions</p> <p>This study led to the confirmation of the authenticity of 115 known miRNAs and the discovery of 167 novel miRNAs in maize. Identification of novel miRNAs resulted in significant enrichment of the repertoire of maize miRNAs and provided insights into miRNA regulation of genes expressed in imbibed seed.</p
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