Economic Properties of Recognized Intangibles under Domestic Accounting Standards: Evidence from European Capital Markets

This study investigates whether European domestic GAAPs used for intangibles recognition prior to the IFRS adoption exhibit major differences while examining the relationship between a firm’s economic (financial, operating and competitive) performance and its recognized intangible investment (RII). Using a five-European-country sample over the pre-IFRS compliance period 1993-2004, we first provide evidence that, independently of the intangibles accounting recognition practices, investors adopt a short-term perspective or “myopic view” while constructing their portfolios by penalizing firms with high RII. Secondly, contrary to the resource-based view, our results suggest that RII do not underpin under any accounting treatment better competitive position inside a specific industry. Finally, our findings clearly support the idea that EU continental accounting standards, while opposed to Anglo-Saxon settings, ease the relationship existing between RII and firm operating performance. This last result would suggest that IFRS adoption could lead to disconnect operating margins from RII and subsequently challenge the widespread claim that IFRS help produce higher-quality reporting about a firm’s operating activities

Classical mappings of the symplectic model and their application to the theory of large-amplitude collective motion

We study the algebra Sp(n,R) of the symplectic model, in particular for the cases n=1,2,3, in a new way. Starting from the Poisson-bracket realization we derive a set of partial differential equations for the generators as functions of classical canonical variables. We obtain a solution to these equations that represents the classical limit of a boson mapping of the algebra. The relationship to the collective dynamics is formulated as a theorem that associates the mapping with an exact solution of the time-dependent Hartree approximation. This solution determines a decoupled classical symplectic manifold, thus satisfying the criteria that define an exactly solvable model in the theory of large amplitude collective motion. The models thus obtained also provide a test of methods for constructing an approximately decoupled manifold in fully realistic cases. We show that an algorithm developed in one of our earlier works reproduces the main results of the theorem.Comment: 23 pages, LaTeX using REVTeX 3.

En el camino de la vida, me divierto jugando y aprendiendo con los n?meros

169 p. Recurso Electr?nicoEl proyecto de investigaci?n denominado ?En el camino de la vida, me divierto jugando y aprendiendo con los n?meros?, se realiz? con el fin de contribuir con el desarrollo del pensamiento matem?tico en los ni?os y disminuir los problemas de los ni?os y ni?as de transici?n del Jard?n Infantil, con respecto al aprendizaje de los n?meros del 20 al 50, con el desarrollo de la investigaci?n se pudo observar que los alumnos presentaban falencias con respecto al aprendizaje de los n?meros naturales, puesto que los ni?os confunden los n?meros del veinte en adelante, como tambi?n, presentaban dificultades de secuencialidad tanto en lenguaje escrito como en verbal; de igual modo los infantes son t?midos, en algunos casos no socializan, no se integran, debido a que carecen de afectividad. Teniendo en cuenta la informaci?n recopilada se decidi? adoptar e implementar un Proyecto Pedag?gico de Aula que se constituye en un instrumento valioso para guiar el proceso de ense?anza-aprendizaje que garantiza el ?xito en la labor educativa, ya que se trabaj? teniendo en cuenta los intereses y necesidades de los estudiantes, facilitando adem?s la implementaci?n del modelo pedag?gico activo desarrollado a trav?s de secuencias did?cticas, este modelo brinda la oportunidad al ni?o de contribuir con la consecuci?n de su ritmo de aprendizaje viabilizando su proceso de formaci?n. La implementaci?n de las rondas infantiles permiti? que el proceso de aprendizaje del ni?o se convirtiera en significativo y acertado.The research project entitled "On the road of life, I have fun playing and learning with numbers", it was performed in order to contribute to the development of mathematical thinking in children and reduce the problems of children transition from Kinder-garden, with respect to learning numbers from 20 to 50, with the development of research, it was observed that the students showed shortcomings regarding Earning of natural numbers, since the children confuse numbers twenty onwards as well, they had difficulties sequencing both written and verbal language; likewise infants are shy in some cases do not socialize, not integrated because they lack affection. Given the information gathered it was decided to adopt and implement an Educational Project Classroom which constitutes of a valuable instruments to guide the teaching-learning process ensuring success in educational work as they worked taking into account the interests and needs of students, facilitating the implementation of active teaching model developed through teaching sequences, this model enables children to contribute to the achievement of your learning pace making it possible to visualize their training process. The implementation of children's rhymes allowed the child's learning process to become meaningful and successful. Keywords: natural numbers, sequencing, mathematical thinking, meaningful learning

SIGNALS FOR MINIMAL SUPERGRAVITY AT THE CERN LARGE HADRON COLLIDER: MULTI-JET PLUS MISSING ENERGY CHANNEL,

We use ISAJET to perform a detailed study of the missing transverse energy \eslt plus multi-jet signal expected from superparticle production at the CERN LHC. Our analysis is performed within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking. We delineate the region of parameter space where the \eslt supersymmetry signal should be observable at the LHC and compare it to the regions explorable via searches for sleptons and for chargino/neutralino production. We confirm that, given a data sample of 10~\fb^{-1}, $m_{\tg}\sim 1300$ GeV can be explored if m_{\tq}\gg m_{\tg}, while $m_{\tg}\sim 2000$ GeV can be probed if m_{\tq}\simeq m_{\tg}. We further examine what information can be gleaned from scrutinizing this event sample. For instance, the multi-jet multiplicity yields information on whether squark production makes a significant contribution to the observed \eslt sample. Furthermore, reconstructing hemispheric masses may yield a measure of $m_{\tg}$ to $\sim 15-25\%$. Finally, for favourable ranges of parameters, by reconstructing masses of tagged $b\bar{b}$ jet pairs, it may be possible to detect Higgs bosons produced via sparticle cascade decay chains.Comment: 22 pages (REVTEX); a PS text file (etmiss.ps) and 12 figures (etlhc.uu or etlhc.ps) can be obtained via anonymous ftp at ftp://hep.fsu.edu/anonymous.bae

Naturalness and superpartner masses or when to give up on weak scale supersymmetry

Superpartner masses cannot be arbitrarily heavy if supersymmetric extensions of the standard model explain the stability of the gauge hierarchy. This ancient and hallowed motivation for weak scale supersymmetry is often quoted, yet no reliable determination of this upper limit on superpartner masses exists. In this paper we compute upper bounds on superpartner masses in the minimal supersymmetric model, and we identify which values of the superpartner masses correspond to the most natural explanation of the hierarchy stability. We compare the most natural value of these masses and their upper limits to the physics reach of current and future colliders. As a result, we find that supersymmetry could explain weak scale stability naturally even if no superpartners are discovered at LEP II or the Tevatron (even with the Main Injector upgrade). However, we find that supersymmetry cannot provide a complete explanation of weak scale stability, if squarks and gluinos have masses beyond the physics reach of the LHC. Moreover, in the most natural scenarios, many sparticles, for example, charginos, squarks, and gluinos, lie within the physics reach of either LEP II or the Tevatron. Our analysis determines the most natural value of the chargino (squark) ((gluino)) mass consistent with current experimental constraints is $\sim$ 50 (250) ((250)) GeV and the corresponding theoretical upper bound is $\sim$ 250 (700) ((800)) GeV.Comment: 14 pages, LaTex, 17 figures uuencoded, gz-compressed file. Minor revisions bring archived manuscript in line with the published versio

Current and novel therapeutic opportunities for systemic therapy in biliary cancer

none24Biliary tract cancers (BTCs) are a group of rare and aggressive malignancies that arise in the biliary tree within and outside the liver. Beyond surgical resection, which is beneficial for only a small proportion of patients, current strategies for treating patients with BTCs include chemotherapy, as a single agent or combination regimens, in the adjuvant and palliative setting. Increased characterisation of the molecular landscape of these tumours has facilitated the identification of molecular vulnerabilities, such as IDH mutations and FGFR fusions, that can be exploited for the treatment of BTC patients. Beyond targeted therapies, active research avenues explore the development of novel therapeutics that target the crosstalk between cancer and stroma, the cellular pathways involved in the regulation of cell death, the chemoresistance phenotype and the dysregulation of RNA. In this review, we discuss the therapeutic opportunities currently available in the management of BTC patients, and explore the strategies that can support the implementation of precision oncology in BTCs, including novel molecular targets, liquid biopsies and patient-derived predictive tools.openMarin J.J.G.; Prete M.G.; Lamarca A.; Tavolari S.; Landa-Magdalena A.; Brandi G.; Segatto O.; Vogel A.; Macias R.I.R.; Rodrigues P.M.; Casta A.L.; Mertens J.; Rodrigues C.M.P.; Fernandez-Barrena M.G.; Da Silva Ruivo A.; Marzioni M.; Mentrasti G.; Acedo P.; Munoz-Garrido P.; Cardinale V.; Banales J.M.; Valle J.W.; Bridgewater J.; Braconi C.Marin, J. J. G.; Prete, M. G.; Lamarca, A.; Tavolari, S.; Landa-Magdalena, A.; Brandi, G.; Segatto, O.; Vogel, A.; Macias, R. I. R.; Rodrigues, P. M.; Casta, A. L.; Mertens, J.; Rodrigues, C. M. P.; Fernandez-Barrena, M. G.; Da Silva Ruivo, A.; Marzioni, M.; Mentrasti, G.; Acedo, P.; Munoz-Garrido, P.; Cardinale, V.; Banales, J. M.; Valle, J. W.; Bridgewater, J.; Braconi, C

Tevatron and LEP-II Probes of Minimal and String-Motivated Supergravity Models

We explore the ability of the Tevatron to probe Minimal Supersymmetry with high energy scale boundary conditions motivated by supersymmetry breaking in the context of supergravity/superstring theory. A number of boundary condition possibilities are considered: dilaton-like string boundary conditions applied at the standard GUT unification scale or alternatively at the string scale; and extreme (``no-scale'') minimal supergravity boundary conditions imposed at the GUT scale or string scale. For numerous specific cases within each scenario the sparticle spectra are computed and then fed into ISAJET 7.07 so that explicit signatures can be examined in detail. We find that, for some of the boundary condition choices, large regions of parameter space can be explored via same-sign dilepton and isolated trilepton signals. For other choices, the mass reach of Tevatron collider experiments is much more limited. We also compare mass reach of Tevatron experiments with the corresponding reach at LEP 200.Comment: 44 pages, requires phyzzx.tex, tables.tex, full postscript file including embedded figures available via anonymous ftp at ucdhep.ucdavis.edu as [anonymous.gunion]bgkp.ps, preprint UCD-94-1

First-Time Home Buyers and Residential Investment Volatility

Like other macroeconomic variables, residential investment has become much less volatile since the mid-1980s (recent experience notwithstanding.) This paper explores the role of structural change in this decline. Since the the early 1980s there have been many changes in the underlying structure of the economy, including those in the mortgage market which have made it easier to acquire a home. We examine how these changes affect residential investment volatility in a life-cycle model consistent with micro evidence on housing choices. We find that a decline in the rate of household formation, increased delay in marriage, and an increase in the cross-sectional variance of earnings drive the decline in volatility. Our findings provide support for the view that the Great Moderation in aggregate fluctuations is not just due to smaller aggregate shocks, but is driven at least in part by structural change