The Dwarf Spheroidal Companions to M31: WFPC2 Observations of Andromeda I

Images have been obtained with the Hubble Space Telescope WFPC2 camera of Andromeda I, a dwarf spheroidal (dSph) galaxy that lies in the outer halo of M31. The resulting color-magnitude diagrams reveal for the first time the morphology of the horizontal branch in this system. We find that, in a similar fashion to many of the galactic dSph companions, the horizontal branch (HB) of And~I is predominantly red. Combined with the metal abundance of this dSph, this red HB morphology indicates that And I can be classified as a ``second parameter'' system in the outer halo of M31. This result then supports the hypothesis that the outer halo of M31 formed in the same extended chaotic manner as is postulated for the outer halo of the Galaxy.Comment: 26 pages using aas2pp4.sty, including 2 tables and 7 figures, to be published in AJ. Figure 1 is in gif form. To include in main ps file, use xv to create a ps file called Da_Costa.fig1.ps and uncomment appropriate lines in .tex fil

Using numerical plant models and phenotypic correlation space to design achievable ideotypes

Numerical plant models can predict the outcome of plant traits modifications resulting from genetic variations, on plant performance, by simulating physiological processes and their interaction with the environment. Optimization methods complement those models to design ideotypes, i.e. ideal values of a set of plant traits resulting in optimal adaptation for given combinations of environment and management, mainly through the maximization of a performance criteria (e.g. yield, light interception). As use of simulation models gains momentum in plant breeding, numerical experiments must be carefully engineered to provide accurate and attainable results, rooting them in biological reality. Here, we propose a multi-objective optimization formulation that includes a metric of performance, returned by the numerical model, and a metric of feasibility, accounting for correlations between traits based on field observations. We applied this approach to two contrasting models: a process-based crop model of sunflower and a functional-structural plant model of apple trees. In both cases, the method successfully characterized key plant traits and identified a continuum of optimal solutions, ranging from the most feasible to the most efficient. The present study thus provides successful proof of concept for this enhanced modeling approach, which identified paths for desirable trait modification, including direction and intensity.Comment: 25 pages, 5 figures, 2017, Plant, Cell and Environmen

Traces of the (m)other: deconstructing hegemonic historical narrative in Teat(r)o Oficina Uzyna Uzona's Os Sertões

This article focuses on the way in which renowned São Paulo-based theatre company Teat(r)o Oficina Uzyna Uzona deconstructs hegemonic historical narrative in their 2000 - 2007 25 hour-long production of Euclides da Cunha’s seminal Brazilian novel Os sertões (“Rebellion in the Backlands”), an account of the War of Canudos (1896-1897), the first major act of State terrorism carried out by the nascent Brazilian Federal Government on the country’s subaltern population. The Teat(r)o Oficina’s epic adaptation fuses events from the colonial period, the military dictatorship and contemporary 21st Century São Paulo to relate the repetitive cycles of misappropriation, oppression and resistance that have characterized the history of Brazil and its people over the centuries. However, any fatalistic view of victimhood as an essential aspect of Brazilian subjectivity is radically challenged by the vibrant, rhythmic, material impact of the theatrical super-signs underpinning the performance text. Drawing on Julia Kristeva’s notion of the semiotic - the pre-linguistic, illogical, rhythmical materialism of language intimately related to a primordial relationship with the abject mother – I shall suggest that it is the rhythmic, libidinal force of the performance and its extensive use of the cultural manifestations of Brazil’s subaltern population that imbues Os Sertões with the silent presence-as-absence of the abject Brazilian (M)Other – the Black, Indigenous and Mestiza matriarchal line whose alternative discourse is often barred from hegemonic accounts of Brazilian historiography. Her silent heritage is embodied on stage by the members of the Oficina, who reclaim an alienating national heritage for themselves by transforming the often tragic tale of Brazil’s past into a joyous celebration of tenacious vitality

eCHASE: Sustainable Exploitation of Electronic Cultural Heritage

Europe’s digital cultural heritage content has tremendous exploitation potential in applications such as Education, Publishing, e-Commerce, Public Access and Tourism. Value is hugely amplified if the content can be aggregated, repurposed and distributed at a European level. The eCHASE project seeks to demonstrate that public-private partnerships between content holders and commercial service providers can create new services and a sustainable business based on access and exploitation of digital cultural heritage content. This paper describes these issues and introduces the eCHASE architecture that is being developed to showcase the business models created for the project

Evidence for exercise training in autonomic function modulation in patients with chronic obstructive pulmonary disease (COPD) : a systematic review

C

Experimental Verification of Rate Flexibility and Probabilistic Shaping by 4D Signaling

The rate flexibility and probabilistic shaping gain of $4$-dimensional signaling is experimentally tested for short-reach, unrepeated transmission. A rate granularity of 0.5 bits/QAM symbol is achieved with a distribution matcher based on a simple look-up table.Comment: Presented at OFC'18, San Diego, CA, US