Public Intellectuals, Book Culture and Civil Society

Introduction: the rise and rise of the public intellectual My starting point is the remarkable rise to prominence of public intellectuals – and talk about public intellectuals – over the last decade in Australia. Since 1997, especially, this has occurred around Indigenous questions with the result that issues such as the stolen generations, genocide, the apology and reconciliation have also gained new prominence. This is undeniably a good thing. New ways of thinking about history and the nation and new kinds of public ethical discourse have been put into circulation. History as battleground is preferable to the great Australian silence. And yet – my starting point is also the ambivalent effects and meanings of these recent developments, not least the way that the debates have centred so much around the figure of the 'public intellectual', the way that certain kinds of intellectuals and intellectual discourse have come to dominate the mainstream representation of the issues.

Public policy and the prevention of substance-use disorders

Drug prevention has traditionally focused on influencing individual attitudes and behaviours. In particular, efforts have been directed towards adolescents in the school setting. However, evaluations of school-based drug education have identified limited success. There is increasing recognition that drug abuse is one of a number of risk behaviours, including truancy, delinquency and mental health problems, which share common antecedents that begin in the early years of childhood. Furthermore, these behaviours are shaped by macroenvironmental influences including the economic, social, cultural, and physical environment. Drug prevention needs to adopt a broader perspective: with greater collaboration in related programmes such as crime prevention and suicide prevention; with greater attention to the macroenvironmental influences on problem behaviours; and with greater attention to healthy development in the first years of childhood. (C) 2002 Lippincott Williams Wilkins.

The use of stochastic dynamic programming in optimal landscape reconstruction for metapopulations

A decision theory framework can be a powerful technique to derive optimal management decisions for endangered species. We built a spatially realistic stochastic metapopulation model for the Mount Lofty Ranges Southern Emu-wren (Stipiturus malachurus intermedius), a critically endangered Australian bird. Using diserete-time Markov,chains to describe the dynamics of a metapopulation and stochastic dynamic programming (SDP) to find optimal solutions, we evaluated the following different management decisions: enlarging existing patches, linking patches via corridors, and creating a new patch. This is the first application of SDP to optimal landscape reconstruction and one of the few times that landscape reconstruction dynamics have been integrated with population dynamics. SDP is a powerful tool that has advantages over standard Monte Carlo simulation methods because it can give the exact optimal strategy for every landscape configuration (combination of patch areas and presence of corridors) and pattern of metapopulation occupancy, as well as a trajectory of strategies. It is useful when a sequence of management actions can be performed over a given time horizon, as is the case for many endangered species recovery programs, where only fixed amounts of resources are available in each time step. However, it is generally limited by computational constraints to rather small networks of patches. The model shows that optimal metapopulation, management decisions depend greatly on the current state of the metapopulation,. and there is no strategy that is universally the best. The extinction probability over 30 yr for the optimal state-dependent management actions is 50-80% better than no management, whereas the best fixed state-independent sets of strategies are only 30% better than no management. This highlights the advantages of using a decision theory tool to investigate conservation strategies for metapopulations. It is clear from these results that the sequence of management actions is critical, and this can only be effectively derived from stochastic dynamic programming. The model illustrates the underlying difficulty in determining simple rules of thumb for the sequence of management actions for a metapopulation. This use of a decision theory framework extends the capacity of population viability analysis (PVA) to manage threatened species.

Warranty and optimal reliability improvement through product development

For products sold with warranty, the warranty servicing cost can be reduced by improving product reliability through a development process. However, this increases the unit manufacturing cost. Optimal development must achieve a trade-off between these two costs. The outcome of the development process is uncertain and needs to be taken into account in the determination of the optimal development effort. The paper develops a model where this uncertainty is taken into account. (C) 2003 Elsevier Ltd. All rights reserved.

Balancing the number and size of sites: An economic approach to the optimal design of cluster samples

The design of randomized controlled trials entails decisions that have economic as well as statistical implications. In particular, the choice of an individual or cluster randomization design may affect the cost of achieving the desired level of power, other things being equal. Furthermore, if cluster randomization is chosen, the researcher must decide how to balance the number of clusters, or sites, and the size of each site. This article investigates these interrelated statistical and economic issues. Its principal purpose is to elucidate the statistical and economic trade-offs to assist researchers to employ randomized controlled trials that have desired economic, as well as statistical, properties. (C) 2003 Elsevier Inc. All rights reserved.

Inova????o no governo e no setor p??blico: desafios e implica????es para a lideran??a

Pol??ticas de inova????o no governo e no setor p??blico s??o necess??rias por muitas raz??es. As institui????es de governan??a, incluindo-se a?? as organiza????es de servi??o p??blico, v??m enfrentando atualmente in??meros desafios e devem exercer suas atribui????es a partir desse contexto. S??o desafios que requerem abordagens novas e inovadoras para dar conta de sua complexidade. ?? preciso, portanto, que governos e servi??os p??blicos se envolvam em processos cont??nuos de inova????o: solu????es convencionais e conhecidas parecem simplesmente n??o mais atender e somente se conseguir?? fazer frente aos novos desafios com sucesso por meio de respostas criativas. Surge, ent??o, uma quest??o: quais as abordagens e as estrat??gias de lideran??a mais indicadas em um contexto de necess??ria inova????o? Este artigo trata dos desafios que surgem a partir desse contexto e dos aspectos de inova????o necess??rios para enfrent??-los. Apresenta ainda algumas abordagens de lideran??a e poss??veis estrat??gias para aumentar a capacidade de lideran??a p??blica e a habilidade dos l??deres, para que enfrentem os desafios de inovar e de implementar pol??ticas e processos inovadores.