Lipidomic analysis of Arabidopsis seed genetically engineered to contain DHA

Metabolic engineering of omega-3 long-chain (≥C20) polyunsaturated fatty acids (ω3 LC-PUFA) in oilseeds has been one of the key targets in recent years. By expressing a transgenic pathway for enhancing the synthesis of the ω3 LC-PUFA docosahexaenoic acid (DHA) from endogenous α-linolenic acid (ALA), we obtained the production of fish oil-like proportions of DHA in Arabidopsis seed oil. Liquid chromatography-mass spectrometry (LC-MS) was used to characterize the triacylglycerol (TAG), diacylglycerol (DAG) and phospholipid (PL) lipid classes in the transgenic and wild type Arabidopsis seeds at both developing and mature stages. The analysis identified the appearance of several abundant DHA-containing phosphatidylcholine (PC), DAG and TAG molecular species in mature seeds. The relative abundances of PL, DAG, and TAG species showed a preferred combination of LC-PUFA with ALA in the transgenic seeds, where LC-PUFA were esterified in positions usually occupied by 20:1ω9. Trace amounts of di-DHA PC and tri-DHA TAG were identified and confirmed by high resolution MS/MS. Studying the lipidome in transgenic seeds provided insights into where DHA accumulated and combined with other fatty acids of neutral and phospholipids from the developing and mature seeds. © 2014 Zhou, Callahan, Shrestha, Liu, Petrie and Singh.

Conservative corporate compliance: Reflections on a study of compliance responses by South African banks

While corporate non-compliance receives much attention, conservative and over-compliant responses are often ignored. These responses go beyond what is required by a particular regulatory requirement. In many cases, regulators may support such responses because they advance regulatory objectives. In the context of risk-based regulation and compliance, especially the model implemented by the Financial Action Task Force to combat money laundering and financing of terrorists, that may, however, not necessarily be the case. With this risk-based approach, regulated institutions are required to respond to higher risks by adopting enhanced risk mitigation measures and are allowed to simplify those measures where the risks are assessed as low. Failure in the latter cases to simplify risk mitigation measures where appropriate, may be inefficient and, in some instances, may even undermine regulatory objectives. This article investigates the drivers of conservative responses by South African banks to statutory anti-money laundering and counter-terrorist financing laws.

Does banks’ dual holding affect bank lending and firms’ investment decisions? Evidence from China

This study investigates the effect of banks’ dual holding on bank lending and firms’ investment decisions using a sample of listed firms in China. We find that dual holding leads to easier access to bank loans, a result that is more pronounced for non-state-owned enterprises (non-SOEs) than SOEs. We also find that dual holding distorts banks’ lending decisions and harms the investment efficiency for SOEs, while resulting in optimal lending decisions and enhanced investment efficiency for non-SOEs. For non-SOEs, further analysis suggests that optimal lending decisions and efficient investment can be achieved for firms with higher ownership concentration, and firms in which the family and foreign investors are the controlling shareholders. We argue that, in emerging markets, whether a bank plays a monitoring role by directly holding the debt and equity claims of companies relies heavily on whether the potential collusion between firm executives and bank managers can be averted, which in turn is determined by the firms’ governance framework and ownership structure.

The adoption of social media by Australian banks to communicate with the public

 This thesis focuses on social media adoption by the Australian banks as method of communication. It proposes a ‘technology independent’ adoption model with components that encompass sociotechnological factors governing the adoption of social media. The model can also be adapted by any business organisation and prove beneficial for future.

Investment banks' entry into new IPO markets and IPO underpricing

We examine the relationship between investment banks' initial public offering (IPO) market shares and their prior IPO underpricing in the new IPO market for China-based companies on the Hong Kong Stock Exchange. To gain expertise in Chinese business practices, investment banks have the incentive to obtain business in this new IPO market by providing high offer prices to the issuer, leading to less underpricing and less money on the table. We hypothesize and find that the less an investment bank underprices Chinabased company IPOs, the greater its subsequent market share of China-based company IPOs in the Hong Kong Stock Exchange. Furthermore, this relationship is driven by a bank's initial China-based company IPO deals. These results suggest that in new IPO markets, investment banks' initial market shares, obtained through lower underpricing, help them grow their market shares in later periods, possibly through the expertise gained in the initial business.

Business cycle and bank loan portfolio performance : empirical evidence from brazilian banks

Este trabalho estuda os efeitos do crescimento econômico e da taxas de juros sobre o desempenho de carteiras de empréstimo dos bancos comerciais brasileiros no período de 2000 a 2010. Os resultados empíricos mostram que o crescimento econômico é o principal "driver" para o desempenho da carteira de crédito. Não foram encontradas evidências estatísticas sginificativas de mudanças na taxa de juros sobre o desempenho das carteiras de empréstimos. Além disso, há evidências empíricas de que o impacto do crescimento econômico sobre o desempenho da carteria de crédito tem efeito defasado de 2 trimestres. Por fim, os resultados mostram que alterações de PIB impactam de forma mais significativa o desempenho da carteira de crédito dos bancos comerciais brasileiros maiores. Devido ao efeito multiplicador do mercado de crédito, quanto maior o banco, maior a expansão relativa de sua carteira de crédito e, conseqüentemente a taxa de inadimplência da carteira, que é agravada pela concentração do mercado de crédito no Brasil.

Propagação de espécies nativas com potencial ornamental : Kelissa brasiliensis (Baker) Ravenna e Sinningia lineata (Hjelmq.) Chautems

A pesquisa em tecnologia de sementes contribui para a manutenção de bancos de germoplasma. Kelissa brasiliensis (Baker) Ravenna e Sinningia lineata (Hjelmq.) Chautems são espécies nativas com potencial ornamental. Os objetivos deste trabalho foram desenvolver testes para a germinação de sementes, conhecer a qualidade fisiológica de lotes coletados in situ, desenvolver protocolos de propagação vegetativa e conhecer estratégias reprodutivas no ambiente. Avaliaram-se o vigor, bem como o comportamento germinativo das sementes em diferentes substratos, temperaturas e condições de luz. Foram realizados experimentos com propagação vegetativa de S. lineata. O trabalho foi conduzido no Laboratório de Sementes da Fepagro, no Jardim Botânico de Porto Alegre e na Faculdade de Agronomia da UFRGS. Durante as coletas, foi feita a observação dos nichos das espécies. O delineamento experimental foi completamente casualizado com quatro repetições de 10 e 20 sementes para K. brasiliensis e S. lineata, respectivamente; para S. lineata, três tratamentos com 17 repetições foram utilizados no experimento com estaquia, e nove tratamentos com quatro repetições para o teste de divisão dos tubérculos. A comparação das médias foi realizada através do teste de Duncan (P<0,05). A temperatura mais adequada para a germinação de sementes de K. brasiliensis foi 10ºC, o que explica a sua restrita distribuição ao bioma Pampa; a combinação 24h/25ºC levou a uma liberação maior de lixiviados na condutividade elétrica; o envelhecimento acelerado (72 h em 41ºC e 100% de umidade) não provocou redução significativa no percentual de germinação das sementes de K. brasiliensis. Já as sementes de S. lineata não germinaram após serem expostas ao estresse. A temperatura mais adequada para o teste de germinação de sementes de S. lineata foi 20ºC; para ambas espécies, o substrato papel e a presença de luz foram as condições mais adequadas para a germinação. S. lineata demonstrou ser facilmente propagada por sementes e via assexuada, o que revelou a rusticidade característica das espécies rupícolas.

Developing a monitoring and evaluation system for Instituto Palmas: a network of community development banks in Brazil

Bancos comunitários de desenvolvimento no Brasil são instituições únicas que operam de acordo com os princípios da economia solidária em função da inclusão financeira de comunidades carentes. O Instituto Palmas, a instituição que assessora e coordena a rede destes bancos, pediu à Universidade de São Paulo e à Universidade de Columbia em Nova York para desenvolver um conjunto de indicadores que pudesse demonstrar o impacto social e o desempenho institucional dos bancos. Esse relatório apresenta os indicadores, a metodologia utilizada na sua formação, e recomendações para sua utilização. Na medida em que resultados e impacto estão analisados através do uso desses indicadores, a rede dos bancos comunitários e outros interessados terão mais clareza sobre suas funções, seu desempenho, e suas áreas que precisam ser melhoradas para cumprir sua missão – superar a pobreza urbana através da economia solidária.

Citizens vs. banks: institutional drivers of financial market litigiousness in Brazil

This article analyzes the institutional drivers of Brazil’s alarmingly high levels of litigation between clients and financial institutions. Most of the policy oriented literature that explores that phenomenon discusses the impacts of a perceived debtor-friendly bias of Brazilian courts on generating feedback loops of litigation that further increases interest rates and creates adverse selection within the pool of potential debtors. This literature therefore addresses the way courts behave once disputes reach their doorstep; conversely, we take a step back to understand the underlying reasons for why such a large number of disputes end up in courts in the first place. We accordingly attribute endemic litigation in Brazilian financial markets to a framework of political, economic and legal institutions and circumstances, which this article aims to unbound and explain.

The impact of Basel III on European banks business models

O acordo Basel III representa, em diversos aspectos, uma verdadeira mudança no paradigma regulatório. Este trabalho examina uma amostra composta por 81 bancos europeus para detectar até que ponto o impacto do Basel III é já perceptível em modelos de negócios alternativos. Descobre-se que os ajustes nos modelos de negócios causados pelo Basel III são mínimos, enquanto que as principais mudanças entre 2010 e 2013 deveram-se a outros factores exógenos, como por exemplo a crise da dívida soberana europeia. Devido à longa observação e aos períodos de transição, as maiores mudanças nos modelos de negócios como consequência do Basel III estarão ainda para acontecer.

Development banks, risk and Basle II: some assessments

The implementation of the Basle II agreement in the financial markets of world economies has been seen as a significant advance in relation to the model enforced under the first agreement (Basle I). It is generally understood that the new agreement represents a substantial advance in relation to the first because it allows banks to better deal with the risks to which they are exposed. Nevertheless, when the application of these principles to development banks is considered it can be noted that certain inconsistencies exist, notably the fact that these institutions are typically public institutions - or at least strongly dependent on public funding - and they do not operate the payment system of the economy. Therefore, the application of the Basle rules to these institutions does not make sense. This means that Basle does not represent an appropriate set of recommendations for how these institutions should deal with their risks, whether because the proposed form of dealing with risks is inadequate, or because other relevant risks for these institutions are not covered by Basle I and II.