Orbits in symmetric spaces, II

Suppose $E$ is fully symmetric Banach function space on $(0,1)$ or $(0,\infty)$ or a fully symmetric Banach sequence space. We give necessary and sufficient conditions on $f\in E$ so that its orbit $\Omega(f)$ is the closed convex hull of its extreme points. We also give an application to symmetrically normed ideals of compact operators on a Hilbert space

Observations of microquasars with the MAGIC telescope

We report on the results from the observations in very high energy band (VHE, E_gamma > 100GeV) of the black hole X-ray binary (BHXB) Cygnus X-1. The observations were performed with the MAGIC telescope, for a total of 40 hours during 26 nights, spanning the period between June and November 2006. We report on the results of the searches for steady and variable gamma-ray signals, including the first experimental evidence for an intense flare, of duration between 1.5 and 24 hours.Comment: Contribution to the 30th ICRC, Merida Mexico, July 2007 on behalf of the MAGIC Collaboratio

QUALITY OF DOCUMENTATION PROCESSES AT THE UNIVERSITY: THE IMPLEMENTATION OF THE PRINCIPLE OF «ONE WINDOW»

В статье раскрываются вопросы обеспечения и повышения качества документационного, административного и информационного сопровождения обучающихся вузаThe article reveals the questions ensure and improve the quality of documentation, administrative and information support of students of the Universit

Gamma rays from microquasars Cygnus X-1 and Cygnus X-3

Gamma-ray observations of microquasars at high and very-high energies can provide valuable information of the acceleration processes inside the jets, the jet-environment interaction and the disk-jet coupling. Two high-mass microquasars have been deeply studied to shed light on these aspects: Cygnus X-1 and Cygnus X-3. Both systems display the canonical hard and soft X-ray spectral states of black hole transients, where the radiation is dominated by non-thermal emission from the corona and jets and by thermal emission from the disk, respectively. Here, we report on the detection of Cygnus X-1 above 60 MeV using 7.5 yr of Pass8 Fermi-LAT data, correlated with the hard X-ray state. A hint of orbital flux modulation was also found, as the source is only detected in phases around the compact object superior conjunction. We conclude that the high-energy gamma-ray emission from Cygnus X-1 is most likely associated with jets and its detection allow us to constrain the production site. Moreover, we include in the discussion the final results of a MAGIC long-term campaign on Cygnus X-1 that reaches almost 100 hr of observations at different X-ray states. On the other hand, during summer 2016, Cygnus X-3 underwent a flaring activity period in radio and high-energy gamma rays, similar to the one that led to its detection in the high-energy regime in 2009. MAGIC performed comprehensive follow-up observations for a total of about 70 hr. We discuss our results in a multi-wavelength context.Comment: Proceedings of the 35th International Cosmic Ray Conference (ICRC 2017), Bexco, Busan, Korea (arXiv:1708.05153

Identification of novel pesticides for use against glasshouse invertebrate pests in UK tomatoes and peppers

To inform current and future pesticide availability to glasshouse vegetable growers, the current project trialled more than twenty products, including existing industry standards, against four key pests of glasshouse tomatoes and bell peppers. These included experimental conventional chemical pesticides as well as alternative biopesticide and biorational products based on phytochemicals, microbials and physically-acting substances. The results suggest that certain biopesticide products, particularly botanicals, provide good levels of pest control, with the same being true of experimental conventional chemical pesticides not yet recommended for use against these pests on these crops. Efforts are on-going to ensure that results of the current project translate to industry benefit via new pesticide approvals

Uma Proposta de Boas Práticas para o Ensino Colaborativo de Programação de Computadores

A programação de computadores ´e uma atividade complexa, que envolve saberes associados a diversas áreas de conhecimento. Por isso, os professores desta área precisam estar continuamente, desenvolvendo formas de ensinar e ajudar os alunos a reduzirem a dificuldade no aprendizado. Este trabalho realizou uma survey, em formato de questionário, que foi enviada para programadores, visando entender como estes aprenderam a programar, quais as formas de ensino que mais auxiliaram neste processo e o que eles mudariam na forma como foram ensinados a programar. Este trabalho apresenta uma proposta de sugestões para apoio aos professores na tarefa de estruturação das aulas de programação. Esta proposta considera o ensino colaborativo de programação através de ferramentas adequadas para a aplicação de cada uma das práticas propostas

Caracterização morfológica, produtividade e rendimento comercial de cultivares de alho.

O objetivo do presente trabalho foi avaliar 20 cultivares de alho, sendo 12 seminobres e 8 nobres, quanto ao rendimento agronômico quando cultivadas no Centro-Sul do estado do Paraná