Symbiotic association between Solanderia secunda (Cnidaria, Hydrozoa, Solanderiidae) and Medioantenna variopinta sp. nov. (Annelida, Polychaeta, Polynoidade) from North Sulawesi (Indonesia)

17 páginas, 10 figuras, 2 tablas.A mimic scale-worm was found associated with the athecate hydroid Solanderia secunda, commonly found on reefs of the NW coast of North Sulawesi, Indonesia. The species resembled Medioantenna clavata Imajima 1997, which was originally described without any reference to a symbiotic mode of life and later reported to be living on a solanderiid hydroid both in Japanese waters. A detailed morphological analysis led us to consider the Indonesian specimens as a new species, namely Medioantenna variopinta sp. nov., which is congeneric with the Japanese species. The new species differs from the type material of M. clavata as it has elytra with one prominent finger-like papilla and all neurochaetae with unidentate tip, instead of an elytral lump and both unidentate and bidentate neurochaetae on segment two. In turn, the Japanese worms associated with Solanderia are here referred to our new species. Two morphological features in M. variopinta sp. nov. are rather unusual among scale-worms. One of them is its extremely high level of bilateral asymmetry and antero-posterior variability in elytral distribution and the other one is its elongated, upwardly directed nephridial papillae. The morphology and geographical distribution of the host together with the known characteristics of the symbiotic association have also been highlighted.The study has been supported by the Russian Foundation for Basic Research (08-04-92244-GFEN-a and 09-05- 00736a) and the Italian Ministry of Foreign Affairs (MAE) and is a contribution to the Consolidated Research Group of the ‘‘Generalitat de Catalunya’’ (ref. numb. 2009SRG665).Peer reviewe

Weak commutation relations of unbounded operators: nonlinear extensions

We continue our analysis of the consequences of the commutation relation [S,T]=\Id, where $S$ and $T$ are two closable unbounded operators. The {\em weak} sense of this commutator is given in terms of the inner product of the Hilbert space \H where the operators act. {We also consider what we call, adopting a physical terminology}, a {\em nonlinear} extension of the above commutation relations

Analisis Biaya Diferensial Sebagai Dasar Pengambilan Keputusan Menerima Atau Menolak Pesanan Khusus (Studi Kasus Pada Perusahaan Kecap Cap “Kuda” Tulungagung Tahun 2013)

This research aims to describe analysis ofdifferential cost fordecision making acceptor rejectspecial order in KetchupCompanystamp of"Kuda". The research method used in this research is descriptive case study approach. The focus ofthis researchare thesales data, production data, cost production data, dataof non-costs production, and income report of"Kuda" KetchupCompanyin 2013. The collecting data technique usedin this research is documentation. The sourceof data for this research isthe secondarydata source. The result of this research are: the company will receive additional profits of Rp 2.748.258,96 if the company received special order from UD. Jiar; the company will receive additional profits of Rp 2.392.904,17 if the company received special order from UD. Sumber Rejeki.Based on this research, then the companysuggested to receive the special order from UD. Jiar and UD. Sumber Rejeki, because receive the special order make the company get additional profits

SBV regularity for Hamilton-Jacobi equations in Rn\mathbb R^n

In this paper we study the regularity of viscosity solutions to the following Hamilton-Jacobi equations $$\partial_t u + H(D_{x} u)=0 \qquad \textrm{in} \Omega\subset \mathbb R\times \mathbb R^{n} .$$ In particular, under the assumption that the Hamiltonian $H\in C^2(\mathbb R^n)$ is uniformly convex, we prove that $D_{x}u$ and $\partial_t u$ belong to the class $SBV_{loc}(\Omega)$.Comment: 15 page

Some remarks on quasi-Hermitian operators

A quasi-Hermitian operator is an operator that is similar to its adjoint in some sense, via a metric operator, i.e., a strictly positive self-adjoint operator. Whereas those metric operators are in general assumed to be bounded, we analyze the structure generated by unbounded metric operators in a Hilbert space. Following our previous work, we introduce several generalizations of the notion of similarity between operators. Then we explore systematically the various types of quasi-Hermitian operators, bounded or not. Finally we discuss their application in the so-called pseudo-Hermitian quantum mechanics.Comment: 18page

A educação dramática na formação inicial de professores e educadores

As atividades de Educação Dramática convocam uma diversidade de possibilidades expressivas. Integradas no currículo de formação inicial de professores e educadores, os projetos de criação dramática, orientados para a performance, implicam, no seu processo criativo, um envolvimento grupal que deverá constituir matéria suficiente de análise e de avaliação por parte dos seus intervenientes em relação à sua própria participação e às relações interpares. O paradigma metodológico orientador do processo dramático-teatral a que nos remetemos assenta num modelo construtivista do processo educacional. Pelo seu caráter explorativo e experimental, a aprendizagem dramático-teatral deverá ser sustentada em estratégias colaborativas entre professor e aluno, implicando, para tal, a possibilidade de tomada de decisões partilhadas, num ambiente de respeito e igualdade.The activities of Drama Education are open to a diversity of expressive possibilities. Integrated in the pre-service training curriculum for teachers and educators, the dramatic creation projects, oriented to performance, imply, in its creative process, a group involvement that should be sufficient matter of analysis and evaluation by those involved in relation to its own participation and relations between peers. The methodological guidance paradigm of the dramatic and theatrical process that guide us is based on a constructivist model of the educational process. Due its exploratory and experimental character, dramatic and theatrical learning should be based on collaborative strategies between teacher and student, implying, to this end, that decision-making possibilities could be shared in an environment of respect and equality.CIEC - Centro de Investigação em Estudos da Criança, IE, UMinho (UI 317 da FCT), Portugal. Fundos Nacionais através da FCT (Fundação para a Ciência e a Tecnologia) e cofinanciado pelo Fundo Europeu de Desenvolvimento Regional (FEDER) através do COMPETE 2020 – Programa Operacional Competitividade e Internacionalização (POCI) com a referência POCI-01-0145-FEDER-007562info:eu-repo/semantics/publishedVersio

Reverse Engineering Gene Networks with ANN: Variability in Network Inference Algorithms

Motivation :Reconstructing the topology of a gene regulatory network is one of the key tasks in systems biology. Despite of the wide variety of proposed methods, very little work has been dedicated to the assessment of their stability properties. Here we present a methodical comparison of the performance of a novel method (RegnANN) for gene network inference based on multilayer perceptrons with three reference algorithms (ARACNE, CLR, KELLER), focussing our analysis on the prediction variability induced by both the network intrinsic structure and the available data. Results: The extensive evaluation on both synthetic data and a selection of gene modules of "Escherichia coli" indicates that all the algorithms suffer of instability and variability issues with regards to the reconstruction of the topology of the network. This instability makes objectively very hard the task of establishing which method performs best. Nevertheless, RegnANN shows MCC scores that compare very favorably with all the other inference methods tested. Availability: The software for the RegnANN inference algorithm is distributed under GPL3 and it is available at the corresponding author home page (http://mpba.fbk.eu/grimaldi/regnann-supmat