Gender, computing and the organisation of working time: public/private comparisons in the Australian context

Professional computing employment in Australia, as in most advanced economies, is highly sex segregated, reflecting well-rehearsed ideas about the masculinity of technology and computing culture. In this paper we are concerned with the processes of work organisation that sustain and reproduce this gendered occupational distribution, focusing in particular on differences and similarities in working-time arrangements between public and private sectors in the Australian context. While information technology companies are often highly competitive workplaces with individualised working arrangements, computing professionals work in a wide range of organisations with different regulatory histories and practices. Our goal is to investigate the implications of these variations for gender equity outcomes, using the public/private divide as indicative of different regulatory frameworks. We draw on Australian census data and a series of organisational case studies to compare working-time arrangements in professional computing employment across sectors, and to examine the various ways employees adapt and respond. Our analysis identifies a stronger ‘long hours culture’ in the private sector, but also underlines the rarity of part-time work in both sectors, and suggests that men and women tend to respond in different ways to these constraints. Although the findings highlight the importance of regulatory frameworks, the organisation of working time across sectors appears to be sustaining rather than challenging gender inequalities in computing employment.

MARKETING DE RELACIONAMENTO NAS INSTITUIÇÕES DE ENSINO SUPERIOR: Estudo de caso da Universidade Metodista de São Paulo e da Universidade Metodista de Piracicaba

O marketing de relacionamento como ferramenta para atrair e fidelizar os alunos do ensino superior privado é o tema desta pesquisa. Trata-se de um estudo de caso múltiplo incorporado enfocando a Universidade Metodista de São Paulo (UMESP) e a Universidade Metodista de Piracicaba (UNIMEP) e que tem como objetivos principais apontar fatores que motivam os estudantes a escolher determinadas instituições de ensino superior, identificar a maneira como elas atuam na tarefa de atraí-los com vistas a estabelecer um relacionamento e uma comunicação eficientes com esses públicos de interesse e fidelizálos, bem como analisar a real efetividade das ações desenvolvidas pelas IESs. Propõe-se uma incursão teórica para abordar motivações psicológicas, culturais, econômicas e sociais relacionadas ao ato de consumir e estabelecer uma correlação com o consumidor-aluno . Discutem-se também características do marketing de relacionamento associadas ao contexto educacional e apontam-se dificuldades/desafios vivenciados pelas instituições nos esforços de criar e estreitar os laços com os estudantes com vistas a tornar tais laços duradouros. Foram aplicados 1.400 questionários em ambas as universidades a fim de identificar, entre outros aspectos, atributos desejáveis de uma IES, fatores influenciadores para o abandono dela e características associadas a processos comunicacionais que representam diferenciais. O estudo apontou que, apesar de as dificuldades financeiras serem um componente que interfere na atração e na fidelização dos alunos, outros também são determinantes, como o nível de excelência de ensino, o corpo docente e a qualidade do relacionamento que as instituições de ensino estabelecem com tais públicos. Tal qualidade passa, obrigatoriamente, por atributos como liberdade para expressar ideias, espaço de diálogo e transparência na comunicação, elementos desafiadores ao modelo vigente e estimuladores a um novo fazer educacional.

Mixture density network training by computation in parameter space

Training Mixture Density Network (MDN) configurations within the NETLAB framework takes time due to the nature of the computation of the error function and the gradient of the error function. By optimising the computation of these functions, so that gradient information is computed in parameter space, training time is decreased by at least a factor of sixty for the example given. Decreased training time increases the spectrum of problems to which MDNs can be practically applied making the MDN framework an attractive method to the applied problem solver.

Packet switching in wide area broadband private networks

B-ISDN is a universal network which supports diverse mixes of service, applications and traffic. ATM has been accepted world-wide as the transport technique for future use in B-ISDN. ATM, being a simple packet oriented transfer technique, provides a flexible means for supporting a continuum of transport rates and is efficient due to possible statistical sharing of network resources by multiple users. In order to fully exploit the potential statistical gain, while at the same time provide diverse service and traffic mixes, an efficient traffic control must be designed. Traffic controls which include congestion and flow control are a fundamental necessity to the success and viability of future B-ISDN. Congestion and flow control is difficult in the broadband environment due to the high speed link, the wide area distance, diverse service requirements and diverse traffic characteristics. Most congestion and flow control approaches in conventional packet switched networks are reactive in nature and are not applicable in the B-ISDN environment. In this research, traffic control procedures mainly based on preventive measures for a private ATM-based network are proposed and their performance evaluated. The various traffic controls include CAC, traffic flow enforcement, priority control and an explicit feedback mechanism. These functions operate at call level and cell level. They are carried out distributively by the end terminals, the network access points and the internal elements of the network. During the connection set-up phase, the CAC decides the acceptance or denial of a connection request and allocates bandwidth to the new connection according to three schemes; peak bit rate, statistical rate and average bit rate. The statistical multiplexing rate is based on a `bufferless fluid flow model' which is simple and robust. The allocation of an average bit rate to data traffic at the expense of delay obviously improves the network bandwidth utilisation.