Orbital eccentricity: sound performance, using commercial and military satellites with real time tracking data

This music performance starts with an inquiring about the possibility to generate sound and music elements using commercial and military satellites, established in a process of acquirement and conversion of satellite movement data sonified in real time, merged to midi-data language. Used to control hardware and software musical instruments. It‘s importance, reflects on the autonomy of the satellites as objectual performers, actants that generate sonic content in an ecology of casual movements and programmed computational music rules. The routes and trajectories are mediated elements to think about composition in a performative dynamic environmental system, manipulated in real time by the performer in direct dialogue with the external technological body. The satellite as an actant suspended in the edge of the human perceptive border that articulate a direct relation with the planet Earth as a place with external telematic objects. It represents the human activity in the boundaries of the universe limits. This performance starts with the production of hardware and software that captures the movement of public and military satellites. In technical collaboration and partnership with Christopher Zlaket (1992) from the Arizona State University who specializes in interface design and David Stingley (1993) of MIT who specializes in computer science. The sonic qualities are dependent of improvisational approaches developed in real time, pointing to aesthetic elements about dynamics, granulation, noise, and drone. Pointing to post-digital and micro sound aesthetics traditions and proposing ruptures.We acknowledge the Foundation for Science and Technology in Portugal to support partially this work throughout the Research Centre for Arts and Communication (project UIDB/Multi/04019/2020) and ID+ Research Institute for Design, Media and Culture.info:eu-repo/semantics/publishedVersio

Do the Small Numbers in the Quark Mixing arise from New Physics?

We put forward the conjecture that the small numbers in the $V_\text{CKM}$ matrix, are generated by physics beyond the Standard Model. We identify as small numbers $V_{ub}$ and the strength of CP violation, measured by $|\text{Im}Q|$, where $Q$ stands for a rephasing invariant quartet of $V_\text{CKM}$. We illustrate how the conjecture can be realised in the context of an extension of the Standard Model where an up-type vector-like quark is introduced leading to a realistic spectrum of quark masses and an effective $V_\text{CKM}$ in agreement with experiment.Comment: 15 pages, 1 tabl

A Bocage Landscape Restricts the Gene Flow of Pest Vole Populations.

The population dynamics of most animal species inhabiting agro-ecosystems may be determined by landscape characteristics, with agricultural intensification and the reduction of natural habitats influencing dispersal and hence limiting gene flow. Increasing landscape complexity would thus benefit many endangered species by providing different ecological niches, but it could also lead to undesired effects in species that can act as crop pests and disease reservoirs. We tested the hypothesis that a highly variegated landscape influences patterns of genetic structure in agricultural pest voles. Ten populations of fossorial water vole, Arvicola scherman, located in a bocage landscape in Atlantic NW Spain were studied using DNA microsatellite markers and a graph-based model. The results showed a strong isolation-by-distance pattern with a significant genetic correlation at smaller geographic scales, while genetic differentiation at larger geographic scales indicated a hierarchical pattern of up to eight genetic clusters. A metapopulation-type structure was observed, immersed in a landscape with a low proportion of suitable habitats. Matrix scale rather than matrix heterogeneity per se may have an important effect upon gene flow, acting as a demographic sink. The identification of sub-populations, considered to be independent management units, allows the establishment of feasible population control efforts in this area. These insights support the use of agro-ecological tools aimed at recreating enclosed field systems when planning integrated managements for controlling patch-dependent species such as grassland voles