992 resultados para WINTERSTEIN ESTER


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Recent research shows that financial reports are losing relevance. Mainly thisis due to the growing strategic importance of intangible assets in theperformance of a company. A possible solution is to modify accounting standardsso that statements include more self-generated intangible assets, taking intoaccount with their inherent risk and difficulty of valuation. We surveyed loanofficers who were asked to assess the credit-worthiness of a hypotheticalcompany. The only information given was a simplified version of financialstatements. Half the group got statements where research and development costshad been capitalized. The other half got statements in which these costs hadbeen treated as an expense. The findings show that capitalization wassignificantly more likely to attract a positive response to a loan request. Thepaper raises the question of whether accounting for intangibles might providemanagers with one more creative accounting technique and, in consequence, itsethical implications.

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After the accounting scandals that have taken place mainly in the UnitedStates during the last years, some Spanish leading authorities havedefended the idea that this kind of accounting problems cannot happen inSpain. They argue that accounting regulation in Europe, and specificallyin Spain, make more difficult the use of creative accounting practices.The objective of this paper is to identify some evidence about thesituacion in Spain. The study tries to demonstrate that some accountingpractices of several of the companies quoted in the Spanish Stock Exchangecould be qualified as earnings management.To carry out this study, the authors have analysed the accounts of the 35companies included in the stock market index IBEX 35. This index iscalculated with the share prices variations of the most importantcompanies quoted in the Spanish Stock Exchange.

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The synthesis of a photoreactive derivative of the human leukocyte antigen-A1 (HLA-A1)-restricted MAGE-1 peptide 161-169 (EADPTGHSY) is described. Using conventional automated solid-phase peptide synthesis, a photoreactive derivative of this peptide was synthesized by replacing histidine-167 with photo-reactive N-beta-4-azidosalicyloyl-L-2,3-diaminopropionic acid. The C-terminal tyrosine was incorporated as phosphotyrosine. This peptide derivative was radioiodinated in the presence of chloramine T. This iodination took place selectively at the photoreactive group, because the phosphate ester prevented tyrosine iodination. Following dephosphorylation with alkaline phosphatase and chromatographic purification, the radiolabeled peptide derivative was incubated with cells expressing HLA-A1 or other HLA molecules. Photoactivation resulted in efficient photoaffinity labeling of HLA-A1. Other HLA molecules or other cellular components were not detectably labeled. This labeling was inhibited by HLA-A1 but not by HLA-A2-binding peptides. This synthesis is generally applicable and can also be adapted to the synthesis of well-defined radiolabeled nonphotoreactive peptide derivatives.

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From the year of its foundation, until the foundation of Revista deContabilidad in 1997, REFC has been the only referred accounting journalin Spain. Published by the Spanish Association for Accounting and BusinessAdministration (AECA), this journal is at the heart of the emergence ofa distinctly Spanish academic accounting community.Our study is based on:1. An analysis of 100 issues of REFC covering the period from 1985 to 1999.2. A questionnaire to Spanish accounting academics on their perceptionsand experience of the journal.Key points emerging from this study include:a) A move away from interest in accounting concepts and rules, as wellas accounting history, and towards positive accounting theory, the impactof accounting information on capital markets, and financial analysis.b) The emergence of a small number of universities as the driving forcein Spanish accounting research.c) Spanish academics rate REFC highly compared to other Spanish journalsfor publication status, as a support for research, and as a support forteaching. A number of English language journals are rated more highly forboth publication status and as a support for teaching.

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'Creative accounting' involves accountants in making accounting policy choices or manipulating transactions in such a way as to give the impression in the accounts that they prefer. While regarded as unethical by most observers, a defence of creative accounting can be based on the ability of the users of accounts to identify bias in accounting policy choices and make appropriate adjustments.In this paper we take the example of the Barcelona Football Club where the club management made three key accounting policy choices that presented a favourable position, and a supporters' club presented an alternative report choosing three alternative accounting policies that presented an unfavourable position. We presented each of these financial reports to one of two groups of Spanish bank loan offices, with supporting notes making the impact of the accounting policy choices clear. We found that the more favourable set of accounts was significantly more likely to attract a positive response to a loan request.This result undermines the defence for creative accounting, based on the ability of users to identify manipulation.

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The number of non-profit organizations has grown considerably over thelast decades, however management control techniques are not being introducedwith the same frequency as in lucrative organizations. The increasedcompetition in this sector has created a growing interest in managementcontrol techniques but with little empirical research in the area. Withthe aim to throw some light over the uses of management control inprofessional associations we have focused in the associations foreconomists in Spain as a particular case of a non-lucrative body.Specifically, the paper comprises three surveys addressed to the followingsectors:1) To the 30 Spanish associations of economists.2) To associations related to the business and/or economics area operatingin the United Kingdom.3) To members of the association of economists in Catalonia (Col.legid'Economistes de Catalunya).Results indicate that management accounting tools are used exceptionally,many times only the minimum legal requirements. The critical situation ofthe associations of economists in Spain requires the implementation ofinformation systems, specially taking into account the differentspecialities of economists and offering to its members, services and productsthat are not available through profit organizations.

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De PINA, Sandrine Ester da Cruz Monteiro. Ocorrência e diversidade de genes pspA entre amostras de Streptococcus pneumoniae pertencentes a complexos clonais circulantes no Brasil. Rio de Janeiro, 2015. Dissertação (Mestrado em Ciências Biológicas - Microbiologia), Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 2015. Streptococcus pneumoniae é um importante patógeno associado a infecções invasivas, sendo também geralmente encontrado na nasofaringe de portadores assintomáticos. A cápsula polissacarídica é o principal fator de virulência e constitui a base das vacinas atualmente licenciadas. Devido às limitações inerentes às vacinas existentes, proteínas desse microrganismo, como a proteína de superfície pneumocócica A (PspA), são consideradas alvos de grande interesse para a formulação de novas estratégias de prevenção. No entanto, devido à natureza polimórfica dos genes pspA, torna-se essencial o levantamento de dados sobre a distribuição desses genes entre as amostras de pneumococos circulantes em diferentes regiões geográficas. Desta forma, o presente estudo teve como objetivo analisar a ocorrência e a diversidade de genes pspA entre 413 amostras de S. pneumoniae isoladas no Brasil entre 1988 e 2014, além de avaliar a ocorrência desses genes em amostras clínicas de espécies relacionadas (Streptococcus mitis e Streptococcus pseudopneumoniae), investigar a ocorrência de eventos de recombinação nesses genes e avaliar a distribuição de biomarcadores por MALDI-TOF MS em cada tipo de gene pspA. Todas as amostras de S. pneumoniae e apenas uma amostra de S. mitis albergavam genes pspA. Genes da família 2 (com destaque para a clade 3) foram os mais comuns (59,6%) com índices de ocorrência crescentes ao longo do tempo, seguidos dos genes da família 1 (39%; com destaque para a clade 1) e da família 3 (1,4%; todas clade 6). Dentro de uma mesma clade, as amostras compartilharam >80% de similaridade em fragmentos do gene pspA, sendo as clades pertencentes a uma mesma família mais próximas entre si evolutivamente. Os tipos de genes pspA foram conservados dentro de cada complexo clonal, independente de qualquer outra característica da amostra (como sorotipo, origem clínica e perfil de susceptibilidade à penicilina). Sinais de eventos de recombinação foram detectados, entre amostras de S. pneumoniae e S. mitis, em fragmentos do gene pspA que representam os alvos mais prováveis para inclusão em uma nova vacina baseada em PspA. MALDI-TOF MS apresentou potencial para ser utilizada como alternativa na caracterização dos diferentes tipos de genes pspA, distribuindo as amostras de S. pneumoniae em subgrupos que se correlacionaram com a família de genes pspA, e permitindo a determinação de perfis de biomarcadores de interesse representativos de cada clade. Este estudo adiciona dados ao conhecimento da distribuição das famílias e clades de genes pspA entre as amostras de pneumococos circulantes em nosso meio, sendo este aspecto de extrema importância para a elucidação da epidemiologia desta espécie bacteriana, assim como representa um passo essencial no desenvolvimento de novas estratégias vacinais.

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L’estudi del nombre d’or, o proporció àurea, permet relacionar quatre dels blocs de continguts de secundària (numeració i càlcul, espai i forma, canvi i relacions i mesura). El present treball utilitza aquest concepte per a mostrar com es pot afavorir la interdisciplinarietat en l’aula i proposar nous recursos per a la pràctica professional

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La hipoglucèmia neonatal (HN) és un problema de salut freqüent en les primeres hores de vida del recent nascut (RN) especialment de mares que pateixen diabetis mellitus (DM) durant l’embaràs, més coneguda com a diabetis gestacional (DG). La diabetis gestacional és un dels principals factors de risc que condiciona a un nadó a presentar hipoglucèmia en les hores posteriors al naixement, per això, els professionals d’infermeria necessiten conèixer la millor manera d’atendre a la dona embarassada que pateix DG amb l’objectiu d’ensenyar-li unes cures personals especifiques per intentar disminuir la incidència de recent nascuts (RN) que presenten hipoglucèmia.

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Since nitric oxide (NO) participates in the renal regulation of blood pressure, in part, by modulating transport of Na(+) and Cl(-) in the kidney, we asked whether NO regulates net Cl(-) flux (JCl) in the cortical collecting duct (CCD) and determined the transporter(s) that mediate NO-sensitive Cl(-) absorption. Cl(-) absorption was measured in CCDs perfused in vitro that were taken from aldosterone-treated mice. Administration of an NO donor (10 μM MAHMA NONOate) reduced JCl and transepithelial voltage (VT) both in the presence or absence of angiotensin II. However, reducing endogenous NO production by inhibiting NO synthase (100 μM N(G)-nitro-l-arginine methyl ester) increased JCl only in the presence of angiotensin II, suggesting that angiotensin II stimulates NO synthase activity. To determine the transport process that mediates NO-sensitive changes in JCl, we examined the effect of NO on JCl following either genetic ablation or chemical inhibition of transporters in the CCD. Since the application of hydrochlorothiazide (100 μM) or bafilomycin (5 nM) to the perfusate or ablation of the gene encoding pendrin did not alter NO-sensitive JCl, NO modulates JCl independent of the Na(+)-dependent Cl(-)/HCO3(-) exchanger (NDCBE, Slc4a8), the A cell apical plasma membrane H(+)-ATPase and pendrin. In contrast, both total and NO-sensitive JCl and VT were abolished with application of an epithelial Na(+) channel (ENaC) inhibitor (3 μM benzamil) to the perfusate. We conclude that NO reduces Cl(-) absorption in the CCD through a mechanism that is ENaC-dependent.

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The Baix Empordà-Selva-Gavarres aquifer system is related to the fault set that created the tectonic basins of Empordà and Selva areas (NE Spain) during the Neogene. In this work, we describe groundwater hydrogeological, hydrochemical and isotopical (3H, δD, δ18O, and the 87Sr/86Sr ratio) characteristics of this system in order to illustrate the relevance of fault zones in groundwater flow-paths and the recharge. In that way, we identify two flow systems, with distinct hydrochemistry and isotopes. A local flow system originates at the Gavarres Range, and it flows towards the basins of the Baix Empordà and Selva, with an approximate residence time of 20 years. Additionally, a regional flow system has only been identified in the Selva basin. This one is related to the main fault zones, as preferential flow paths. Its recharge is located in mountain ranges with higher altitudes, namely the Transversal and Guilleries Ranges, with residence times larger than 50 years. Isotopical data has also shown mixing processes between both flow systems and rainfall recharge while multivariate statistical analysis of principal components has shown the main processes that control hydrochemistry of each flow systems

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BACKGROUND/AIM: Excitation-contraction coupling is modulated by nitric oxide (NO) which otherwise has either beneficial or detrimental effects on myocardial function during hypoxia-reoxygenation. This work aimed at characterizing the variations of electromechanical delay (EMD) induced by anoxia-reoxygenation within the developing heart and determining whether atrial and ventricular EMD are modulated by NO to the same extent. METHODS: Hearts of 4 or 4.5-day-old chick embryos were excised and submitted in vitro to normoxia (45 min), anoxia (30 min) and reoxygenation (60 min). Electrocardiogram and atrial and ventricular contractions were simultaneously recorded throughout experiment. Anoxia-reoxygenation-induced chrono-, dromo-and inotropic disturbances and changes in EMD in atrium (EMDa) and ventricle (EMDv) were investigated in control hearts and in hearts exposed to 0.1, 1, 10, 50 and 100 microM of DETA-NONOate (a NO donating agent) or to 50 microM of L-NAME (a NOS inhibitor). RESULTS: Under normoxia, heart rate, PR interval, ventricular shortening velocity, EMDa and EMDv were similar in control, L-NAME-treated and DETA-NONOate-treated hearts. Under anoxia, cardiac activity became markedly erratic within less than 10 min in all groups. At the onset of reoxygenation, EMDv was increased by about 300% with respect to the preanoxic value while EMDa did not vary significatively. Compared to control conditions, L-NAME or DETA-NONOate had no influence on the negative chrono-, dromo- and inotropic effects induced by anoxia-reoxygenation. However, L-NAME prolonged EMDv during anoxia and delayed EMDv recovery during reoxygenation while 100 microM DETA-NONOate had the opposite effects. EMDa was neither affected by NOS inhibitor nor NO donor. At the end of reoxygenation, all the investigated parameters returned to their basal values. CONCLUSION: This work provides evidence that a NO-dependent pathway is involved in regulation of the ventricular excitation-contraction coupling in the anoxic-reoxygenated developing heart.