Uniqueness of Lagrangian Self-Expanders

We show that zero-Maslov class Lagrangian self-expanders in C^n which are asymptotic to a pair of planes intersecting transversely are locally unique if n>2 and unique if n=2.Comment: 32 page

Stylised features of price setting behaviour in Portugal: 1992-2001

This paper identifies the empirical stylized features of price setting behaviour in Portugal using the micro-datasets underlying the consumer and the producer price indexes. The main conclusions are the following: 1 in every 4 prices change each month; there is a considerable degree of heterogeneity in price setting practices; consumer prices of goods change more often than consumer prices of services; producer prices of consumption goods vary more often than producer prices of intermediate goods; for comparable commodities, consumer prices change more often than producer prices; price reductions are common, as they account for around 40 per cent of total price changes; price changes are, in general, sizeable; finally, the price setting patterns at the consumer level seem to depend on the level of inflation as well as on the type of outlet. JEL Classification: E31, E32, L11consumer prices, frequency of price changes, price setting, producer prices

Comment on Bress et al. Effect of Intensive Versus Standard Blood Pressure Treatment According to Baseline Prediabetes Status: A Post Hoc Analysis of a Randomized Trial. Diabetes Care 2017;40:1401-1408.

info:eu-repo/semantics/publishedVersio

A linguagem bi-média no design gráfico

A identidade corporativa de uma empresa ou instituição evidencia-se através dos elementos comunicacionais internos e externos, do ambiente de produção e/ou do atendimento que é prestado ao cliente, na apresentação do staff e também através dos estacionários. Neste sentido, a investigação pretende materializar os valores associados à marca IPCB e, assim, permitir delinear vários níveis de estratégia de comunicação corporativa em adequação aos diferentes públicos-alvo. Na metodologia de investigação, numa primeira fase, torna-se necessário fazer uma revisão da literatura, relacionada com a problemática em causa, para clarificar conceitos e adotar métodos. A partir da revisão bibliográfica, determinou-se um conjunto de argumentos a testar e identificaram-se as variáveis e as medidas a tomar para testar esses argumentos. Para testar os argumentos, recorreu-se a uma metodologia de investigação mista: Primeiro, através de observação e análise das campanhas publicitárias de angariação de novos alunos, realizadas anteriormente pelo IPCB, na intenção de avaliar a relação entre imagem e texto. Segundo, através de questionário pretendeu-se a realização de uma auditoria de imagem à presidência, deste instituto. Tudo isso com o objetivo de fundamentar a relação existente entre texto e imagem na publicidade institucional, e quais os valores da marca IPCB presentes na comunidade académica. A análise dos dados resultantes desta metodologia de investigação será qualitativa e poderá resultar num conjunto de diretrizes não fechadas, para que, em futuras campanhas publicitárias, a aplicação da marca IPCB seja feita com maior eficácia, valorizando e solidificando a Imagem institucional. Pretende-se que esta investigação tenha uma aplicabilidade prática na campanha de captação de novos alunos para os cursos do IPCB, nos anos lectivos de 2013/2016. Contribuirá, certamente, para a consolidação da postura institucional no exterior já que, com maior sucesso, se poderão definir linhas estratégicas e determinar objetivos a cumprir, promovendo-se, com isso, uma postura de excelência relativamente à concorrência.ABSTRACT The corporate identity of a company or institution is evidenced through internal and external communication elements, the production environment and / or care that is provided to the customer at the presentation of staff, and also through stationary. In this sense, the research aims to materialize the values associated with the brand IPCB, and allow delineating various levels of corporate communication strategy for adaptation to different target. In research methodology, in a first phase, it is necessary to review the literature related to the issue in question to clarify concepts and adopt methods. From the literature review it was determined a set of hypotheses to be tested and identified the variables and the measures needed to test these hypotheses. To test the hypothesis it was used a mixed research methodology: First, through observation and analysis of advertising campaigns to attract new students, held previously by IPCB, intending to evaluate the relationship between image and text. Second, through questionnaire was intended to carry out an audit (of advertising image) to the presidency of this institute. Therefore, it is sought to substantiate the relationship between text and image in institutional advertising, and what brand values IPCB present in the academic community. The analysis of the data resulting from this research methodology is qualitative and may result in a set of guidelines that are not closed, so that in future advertising campaigns, the implementation of brand IPCB can be done more effectively, enhancing and solidifying the institutional image. It is intended that this research has a practical applicability in the campaign to attract new students to the IPCB courses in the academic years 2013/2016. It will certainly be to consolidate the institutional posture abroad since, with greater success, may be well-defined strategic lines delineate and determine goals to fulfil, promoting thereby a position of excellence over the competition.info:eu-repo/semantics/publishedVersio

Noncommutative Metafluid Dynamics

In this paper we define a noncommutative (NC) Metafluid Dynamics \cite{Marmanis}. We applied the Dirac's quantization to the Metafluid Dynamics on NC spaces. First class constraints were found which are the same obtained in \cite{BJP}. The gauge covariant quantization of the non-linear equations of fields on noncommutative spaces were studied. We have found the extended Hamiltonian which leads to equations of motion in the gauge covariant form. In addition, we show that a particular transformation \cite{Djemai} on the usual classical phase space (CPS) leads to the same results as of the $\star$-deformation with $\nu=0$. Besides, we will shown that an additional term is introduced into the dissipative force due the NC geometry. This is an interesting feature due to the NC nature induced into model.Comment: 11 page

NIR spectroscopy of the Sun and HD20010 - Compiling a new linelist in the NIR

Context: Effective temperature, surface gravity, and metallicity are basic spectroscopic stellar parameters necessary to characterize a star or a planetary system. Reliable atmospheric parameters for FGK stars have been obtained mostly from methods that relay on high resolution and high signal-to-noise optical spectroscopy. The advent of a new generation of high resolution near-IR spectrographs opens the possibility of using classic spectroscopic methods with high resolution and high signal-to-noise in the NIR spectral window. Aims: We aim to compile a new iron line list in the NIR from a solar spectrum to derive precise stellar atmospheric parameters, comparable to the ones already obtained from high resolution optical spectra. The spectral range covers 10 000 {\AA} to 25 000 {\AA}, which is equivalent to the Y, J, H, and K bands. Methods: Our spectroscopic analysis is based on the iron excitation and ionization balance done in LTE. We use a high resolution and high signal-to-noise ratio spectrum of the Sun from the Kitt Peak telescope as a starting point to compile the iron line list. The oscillator strengths (log gf) of the iron lines were calibrated for the Sun. The abundance analysis was done using the MOOG code after measuring equivalent widths of 357 solar iron lines. Results: We successfully derived stellar atmospheric parameters for the Sun. Furthermore, we analysed HD20010, a F8IV star, from which we derived stellar atmospheric parameters using the same line list as for the Sun. The spectrum was obtained from the CRIRES- POP database. The results are compatible with the ones found in the literature, confirming the reliability of our line list. However, due to the quality of the data we obtain large errors.Comment: 9 pages and 9 figure