Ajuda externa e crescimento económico: o Millennium challenge account em Cabo Verde

A discussão sobre a questão da efectividade da ajuda externa já dura há décadas. Se por um lado estão estudos que consideram que a ajuda externa tem um impacto positivo no crescimento económico, por outro estão aqueles que concluíram que os fluxos de ajuda apenas contribuem para aumentar a corrupção, a pobreza e perpetuar maus governos. Este trabalho de investigação discute a questão da efectividade das ajudas externas no caso concreto de Cabo Verde. O país passou recentemente a beneficiar de um novo programa de ajudas externas, o Millennium Challenge Account, pelo que é pertinente perceber se os fluxos de ajudas externas, em geral, e do programa MCA, em particular, têm dado resultados positivos para o país. Para a análise empírica, foram analisados os relatórios anuais do Banco de Cabo Verde e outras fontes complementares, e os dados usados são referentes a 23 anos. A conclusão da análise econométrica sugere que a ajuda externa se tem repercutido de forma positiva no crescimento económico de Cabo Verde, apesar da variável Assistência Oficial ao Desenvolvimento não ter apresentado significância estatística. Os fluxos privados são contudo fortemente positivos e significativos. O impacto do programa MCA também se revelou positivo para o crescimento económico do país, reforçando a ideia de que quando a ajuda é direccionada para sectores que dinamizam o crescimento da economia, o seu impacto no mesmo é positivo. ABSTRACT; The debate about the question of foreign aid effectiveness goes back decades. While on one side, there are researchers that conclude that foreign aid have a positive impact on economic growth, on the other side, there are those who conclude that the flows of aid only contribute to promote corruption, poverty and perpetuate bad governments. This work investigates the question of foreign aid effectiveness in the economic growth rates of Cape Verde. Since Cape Verde became recently a beneficiary of the new program of foreign aid, the Millennium Challenge Account, it would be interesting to understand if the flows of foreign aid and the MCA have given positive results in the case of Cape Verde. To reach these goals, the annual reports of the Central Bank of Cape Verde, together with other sources, have been analysed and the data refers to 23 years. The results of the econometric analyses suggest that foreign aid has had a positive impact on economic growth in Cape Verde. Even though the Official Development Assistance did not present statistically significant coefficient, the Private Flows seem to be largely positive and significant. The impact of the MCA program also revealed a positive impact on the economic growth of the Cape Verdean's islands, and it reinforces the idea that when the flow of aid is directed at those sectors that promote economic growth, its impact on the economy is largely positive and significant.

Inclusion as a Moral Challenge: the Potential of the Konstanz Method of Dilemma Discussion® (KMDD®)

This article presents the Konstanz Method of Dilemma Discussion ® (KMDD ®) and explains the integration of the KMDD ® in ethics lessons. In this paper, some special learning effects of this inclusive teaching and learning method are shown. Furthermore, it investigates the questions of how to achieve more knowledge in ethics lessons by dialogue and how to realize better moral development, particularly by handling of differentiation. Moral education of all participants who are involved in the learning process (learners and teacher alike) is a crucial task of every true inclusion. True inclusion means building optimal learning conditions in keeping with the free will of all participants. Because our society is transforming constantly in both global and demographic aspects, coping with these challenges is mandatory.

A film director’s challenge : To manage – to manage? – The creative process in a film project

The aim of this text is to discuss how it is possible to manage the art creating process in a film project, where the circumstances are often turbulent. In normative project management literature one proceeds from the idea that a project is realised in a stable world from a clear goal. In a film project there is often a need to change your plans, to improvise both in front of the camera as well as behind the camera. In the theoretical cinematic literature the responsibility for the final film text is more and more being viewed as a product of not only the director, but of the whole team’s work. Consequently, the narrative of leadership/management in a film team can be viewed from a relational perspective where the director and those s/he interacts with, are responsible for the action, relations and social situations they construe jointly in the process of filmmaking. The organization of a film project is a temporary one. The members of a team are seldom the same from one production to another, as well as the creative process always being unique. According to process thinking, organizing can be seen as the ongoing creative activity where we structure and stabilize the chaotic, moving reality. As concerns a film project, the process of becoming of the filmic expression; careful plans, on the one hand, and improvisation and flexibility in action, on the other hand, are a precondition for its realisation. The director when setting a linguistic formulation to what is to be done, can be considered as a practical author.

Medical Device Development: the challenge for ergonomics

High quality, well designed medical devices are necessary to provide safe and effective clinical care for patients as well as to ensure the health and safety of professional and lay device users. Capturing the user requirements of users and incorporating these into design is an essential component of this. The field of ergonomics has an opportunity to assist, not only with this area, but also to encourage a more general consideration of the user during medical device development. A review of the literature on methods for assessing user requirements in engineering and ergonomics found that little published work exists on the ergonomics aspects of medical device development. In particular there is little advice available to developers on which issues to consider during design and development or recommendations for good practice in terms of the methods and approaches needed to capture the full range of user requirements. The Multidisciplinary Assessment of Technology Centre for Healthcare (MATCH) is a research collaboration that is working in conjunction with industrial collaborators to apply ergonomics methods to real case study projects with the ultimate aim of producing an industry-focused guide to applying ergonomics principles in medical device development.

The interaction factor as a challenge for foreign language learning in the technology based education: a pedagogical reflection

The author carries out a pedagogical reflection on how the technology driven distance learning repeatedly neglects the scientific achievements of Second Language Acquisition and Language Pedagogy. Seeing communicative competence as a major goal of a language classroom, she presents the main challenges that the communicative approach poses to distance learning. To this end, a general distance learning theory by Moore is adapted to the needs of language education, through a distinction between three aspects of learner interaction – with the teacher, with other learners and with content. In this three-dimensional paradigm the learner is seen as the main actor of the process, the teacher as a facilitator, the text as a main source of communicative data and the learner autonomy as the fundament of the process.

Immunoregulation in human malaria: the challenge of understanding asymptomatic infection

Asymptomatic Plasmodium infection carriers represent a major threat to malaria control worldwide as they are silent natural reservoirs and do not seek medical care. There are no standard criteria for asymptomatic Plasmodium infection; therefore, its diagnosis relies on the presence of the parasite during a specific period of symptomless infection. The antiparasitic immune response can result in reduced Plasmodium sp. load with control of disease manifestations, which leads to asymptomatic infection. Both the innate and adaptive immune responses seem to play major roles in asymptomatic Plasmodium infection; T regulatory cell activity (through the production of interleukin- 10 and transforming growth factor-β) and B-cells (with a broad antibody response) both play prominent roles. Furthermore, molecules involved in the haem detoxification pathway (such as haptoglobin and haeme oxygenase-1) and iron metabolism (ferritin and activated c-Jun N-terminal kinase) have emerged in recent years as potential biomarkers and thus are helping to unravel the immune response underlying asymptomatic Plasmodium infection. The acquisition of large data sets and the use of robust statistical tools, including network analysis, associated with welldesigned malaria studies will likely help elucidate the immune mechanisms responsible for asymptomatic infection.

In vitro effects of erosive challenge on the surface properties of sealants

Aim: To assess in vitro the surface roughness (Ra), Vickers hardness (VHN) and surface morphology of resin and glass ionomer materials used for sealants after dynamic erosive challenge. Methods: Twenty specimens of each material were prepared and divided into experimental (erosive challenge) and control groups (n=10): Protect Riva (SDI), Opallis Flow (3M ESPE), Fluroshield (Dentsply), Filtek Z350 XT Flow (3M ESPE). The erosive challenge was performed 4 times per day (90 s) in cola drink and for 2 h in artificial saliva for 7 days. The control specimens were maintained in artificial saliva. Ra and VHN readings were performed before and after erosion. The percentage of hardness loss (%VHN) was obtained after erosion. The surface morphology was evaluated by scanning electron microscopy (SEM). The data were analyzed by ANOVA, Tukey and paired t tests (α=0.05). Results: After erosion and saliva immersion, there was an increase in Ra values for all groups and Riva group showed the highest Ra values. After erosive challenge, Riva and Filtek groups showed significant decrease in VHN values, but Filtek group showed the greatest %VHN. For all groups there was inorganic particle protrusion and matrix degradation after erosion visualized by SEM images. Conclusions: Erosive challenge affected the surface properties of all materials used as sealants, particularly in the Riva and Filtek groups.

Climate change and EU security policy : an unmet challenge

A Cimeira europeia de Dezembro 2013 deu à União Europeia um mandato para uma nova estratégia de segurança. As alterações climáticas têm desempenhado um papel cada vez mais importante nos debates sobre segurança europeia. A União tem sido uma das organizações a melhor identificar as alterações climáticas como um “multiplicador de ameaça” e a desenvolver todo um conjunto de iniciativas políticas, destinadas a relacionar fatores aliados às alterações climáticas com as políticas externas e de segurança. A UE tem pressionado para um ambicioso acordo internacional sobre clima até 2015 pelo que importa considerar a relação entre duas agendas: a da política externa e da segurança. O autor examina problemas resultantes da fragmentação de responsabilidades entre vários atores institucionais europeus aos quais falta um enfoque sobre questões climáticas. O artigo explora ainda a relação entre alterações climáticas e políticas de emigração da UE; a relação entre clima, segurança energética e política de defesa e a dimensão geoeconómica das respostas políticas da União. Conclui com uma reflexão sobre se o fenómeno das alterações climáticas terá um efeito positivo sobre a cooperação europeia, em particular no domínio da gestão de crises com origem climática ou se ao invés incentivará os Estados a uma postura de isolamento.

Population genetics of Cerastoderma edule in Ria Formosa (southern Portugal): the challenge of understanding an intraspecific hotspot of genetic diversity

Coastal lagoons are highly variable environments that may act as hotspots of genetic diversity as a consequence of their ecological role as nursery habitats of marine species with both ecological and fisheries importance. The edible cockle (Cerastoderma edule) is a commercially important shellfish resource inhabiting coastal lagoons in Europe and their fisheries management urgently needs genetic studies to design appropriate strategies to promote the recovery of exploited populations. The aim of this study was to assess the C. edule genetic diversity and population structure at a small geographic scale, inside Ria Formosa coastal lagoon (southern Portugal) using mitochondrial cytochrome oxidase I sequences in six locations. Outcomes pointed to a common pattern of high haplotype diversity and non-significant genetic structuring inside the Ria Formosa lagoon. A high level of gene flow was detected between all localities and the presence of a single stock from a genetic point of view may be considered for fisheries management purposes. The existence of a high number of haplotypes and high values of haplotype diversity of C. edule in Ria Formosa lagoon could be consistent with the hypothesis that higher genetic diversity is expected in populations occurring in coastal lagoons, suggesting that lagoons could increase standing genetic variation and an adaptive potential of lagoon populations as an ecological response to a highly variable environment.

Where Are We After Five Editions?: Robot Vision Challenge, a Competition that Evaluates Solutions for the Visual Place Classification Problem

This article describes the Robot Vision challenge, a competition that evaluates solutions for the visual place classification problem. Since its origin, this challenge has been proposed as a common benchmark where worldwide proposals are measured using a common overall score. Each new edition of the competition introduced novelties, both for the type of input data and subobjectives of the challenge. All the techniques used by the participants have been gathered up and published to make it accessible for future developments. The legacy of the Robot Vision challenge includes data sets, benchmarking techniques, and a wide experience in the place classification research that is reflected in this article.

Double Hybrid Functionals and the Π-System Bond Length Alternation Challenge: Rivaling Accuracy of Post-HF Methods

Predicting accurate bond length alternations (BLAs) in long conjugated oligomers has been a significant challenge for electronic-structure methods for many decades, made particularly important by the close relationships between BLA and the rich optoelectronic properties of π-delocalized systems. Here, we test the accuracy of recently developed, and increasingly popular, double hybrid (DH) functionals, positioned at the top of Jacobs Ladder of DFT methods of increasing sophistication, computational cost, and accuracy, due to incorporation of MP2 correlation energy. Our test systems comprise oligomeric series of polyacetylene, polymethineimine, and polysilaacetylene up to six units long. MP2 calculations reveal a pronounced shift in BLAs between the 6-31G(d) basis set used in many studies of BLA to date and the larger cc-pVTZ basis set, but only modest shifts between cc-pVTZ and aug-cc-pVQZ results. We hence perform new reference CCSD(T)/cc-pVTZ calculations for all three series of oligomers against which we assess the performance of several families of DH functionals based on BLYP, PBE, and TPSS, along with lower-rung relatives including global- and range-separated hybrids. Our results show that DH functionals systematically improve the accuracy of BLAs relative to single hybrid functionals. xDH-PBE0 (N4 scaling using SOS-MP2) emerges as a DH functional rivaling the BLA accuracy of SCS-MP2 (N5 scaling), which was found to offer the best compromise between computational cost and accuracy the last time the BLA accuracy of DFT- and wave function-based methods was systematically investigated. Interestingly, xDH-PBE0 (XYG3), which differs to other DHs in that its MP2 term uses PBE0 (B3LYP) orbitals that are not self-consistent with the DH functional, is an outlier of trends of decreasing average BLA errors with increasing fractions of MP2 correlation and HF exchange.

Challenge of pacu (Piaractus mesopotamicus) fed diets supplemented with vitamins C and E by Aeromonas hydrophila under different temperature

Pacus Piaractus mesopotamicus alimentados com dietas contendo três níveis de vitaminas C e E (zero, 250 e 500mg/kg de ração) foram desafiados, em diferentes temperaturas, com Aeromonas hydrophila. Os peixes foram mantidos em caixas plásticas de 300L e, com o objetivo de reduzir as reservas vitamínicas, durante os primeiros 60 dias, foram alimentados com dietas isentas das vitaminas C e E. Após esse período, os peixes foram estocados na densidade inicial de 14 peixes/caixa e as dietas-teste foram oferecidas durante 60 dias. Ao final do experimento, todos os peixes foram infectados com 6×10(6) UFC de A. hydrophila/peixe, injetada intraperitonealmente. Não houve interação nível de vitamina C vs. nível de vitamina E quanto à mortalidade. A suplementação com as vitaminas C e E não reduziu a taxa de mortalidade dos peixes desafiados com A. hydrophila. Independentemente da suplementação vitamínica, após o desafio, os peixes menores apresentaram maior taxa de mortalidade que os maiores e o grupo mantido em ambiente com temperatura mais alta apresentou maior taxa de mortalidade após o desafio.