Communication and new media: From broadcast to narrowcast

Firmly grounded in a political economy approach, this new Canadian edition is an innovative introduction to media and communication that examines issues of ownership, access, and control as technologies combine to create new hybrid technologies that are changing the way we relate to each other and the world around us. Expertly adapted to meet the needs and interests of Canadian students, this text maintains a global perspective while integrating Canadian research, data, government policy and legislation, and examples throughout.

Asian immigrant parents’ and New Zealand early childhood teachers’ views of parent-teacher relationships

The growing number of Asian children entering the New Zealand early childhood education system means that teachers cannot ignore the need to develop an understanding of Asian cultures and practices that support working collaboratively with Asian families. This paper examines the views of a small number of Asian immigrant parents and New Zealand early childhood teachers about parent-teacher partnerships in children’s early education and care. The findings point to challenges for both parents and teachers. The paper highlights some major problems or barriers to the achievement of effective partnerships between Asian immigrant parents and New Zealand early childhood teachers, namely parental and teacher confidence, time, and willingness or perception of need to develop a partnership. Some recommendations for improving teacher practices are outlined. It is concluded that given the limitations of this study and yet the issues it has raised, that this is topic which needs to be more systematically researched.

Negotiating and creating intercultural relations: Chinese immigrant children in New Zealand early childhood education centres

A multiple-case study investigation of the experiences of eight Chinese immigrant children in New Zealand early childhood centres suggested that the immigrant children’s learning experiences in their first centre can be understood as a process of negotiating and creating intercultural relations. The children’s use of family cultural tools, such as the Chinese language, was a distinctive feature of their learning experiences, simultaneously revealing and extending their exploration of the intercultural practices and their establishment of a sense of belonging. In the presence of Chinese-speaking peers who acted as ‘bridges’ and ‘boundary objects’, the Chinese language was actively used by the immigrant children in English-speaking early childhood centres and, as a result, they created intercultural relations which: (i) bridged the two cultures; (ii) brought the cultures into convergence; (iii) enabled the children to claim group identity; and (iv) battled intercultural constraints. The absence of Chinese speakers, on the other hand, constrained possibilities for intercultural relations. The focus on intercultural relations in this study is expected to lead to educational initiatives to support the incorporation of diverse cultures in early childhood services.

A new evidence-based approach to weight management in primary care: the Counterweight Programme

Background/Aims Obesity has become a global epidemic, and a major preventable cause of morbidity and mortality. Management strategies and treatment protocols are however poorly developed and evaluated. The aim of the Counterweight Programme is to develop an evidence-based model for the management of obesity in primary care.

Methods The Counterweight Programme is based on the theoretical model of Evidence-Based Quality Assessment aimed at improving the management of obese adults (18–75 years) in primary care. The model consists of four phases: (1) practice audit and needs assessment, (2) practice support and training, (3) practice nurse-led patient intervention, and (4) evaluation. Patient intervention consisted of screening and treatment pathways incorporating evidence-based approaches, including patient-centred goal setting, prescribed eating plans, a group programme, physical activity and behavioural approaches, anti-obesity medication and weight maintenance strategies. Weight Management Advisers who are specialist obesity dietitians facilitated programme implementation. Eighty practices were recruited of which 18 practices were randomized to act as controls and receive deferred intervention 2 years after the initial audit.

Results By February 2004, 58 of the 62 (93.5%) intervention practices had been trained to run the intervention programme, 47 (75.8%) practices were active in implementing the model and 1256 patients had been recruited (74% female, 26% male, mean age 50.6 years, SD 14). At baseline, 75% of patients had at one or more co-morbidity, and the mean body mass index (BMI) was 36.9 kg/m2 (SD 5.4). Of the 1256 patients recruited, 91% received one of the core lifestyle interventions in the first 12 months. For all patients followed up at 12 months, 34% achieved a clinical meaningful weight loss of 5% or more. A total of 51% of patients were classed as compliant in that they attended the required level of appointments in 3, 6, and 12 months. For fully compliant patients, weight loss improved with 43% achieving a weight loss of 5% or more at 12 months.

Conclusion The Counterweight Programme is an evidence-based weight management model which is feasible to implement in primary care.

A review of new vibration issues due to non-ideal energy sources

We analyze the dynamical coupling between energy sources and structural response that must not be ignored in real engineering problems, since real motors have limited output power. We present models of certain problems that render descriptions that are closer to real situations encountered in practice.

A New and Fast Technique to Generate Offspring after Germ Cells Transplantation in Adult Fish: The Nile Tilapia (Oreochromis niloticus) Model

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A New Birth-Interval Approach to Estimating Demographic Parameters of Humpback Whales

A demographic model is developed based on interbirth intervals and is applied to estimate the population growth rate of humpback whales (Megaptera novaeangliae) in the Gulf of Maine. Fecundity rates in this model are based on the probabilities of giving birth at time t after a previous birth and on the probabilities of giving birth first at age x. Maximum likelihood methods are used to estimate these probabilities using sighting data collected for individually identified whales. Female survival rates are estimated from these same sighting data using a modified Jolly–Seber method. The youngest age at first parturition is 5 yr, the estimated mean birth interval is 2.38 yr (SE = 0.10 yr), the estimated noncalf survival rate is 0.960 (SE = 0.008), and the estimated calf survival rate is 0.875 (SE = 0.047). The population growth rate (l) is estimated to be 1.065; its standard error is estimated as 0.012 using a Monte Carlo approach, which simulated sampling from a hypothetical population of whales. The simulation is also used to investigate the bias in estimating birth intervals by previous methods. The approach developed here is applicable to studies of other populations for which individual interbirth intervals can be measured.

Mimosine and Cyclophosphamide: a Potential New Combination Therapy Used to Prevent Tumor Development

The effects of mimosine (MI), which is an amino acid that is derived from Leucaena leucocephala, were evaluated on the growth of ascitic Ehrlich tumors, and the effects of the combination treatment of MI and cyclophosphamide (CY) on tumor growth were also assessed. Mice were divided into groups that received the following treatments over the course of 20 days: phosphate buffer solution (CO), MI, Ehrlich cells (E), E plus CY (EC), E plus MI (EM) and E plus MI and CY (EMC). No signs of toxicity were detected in the mice from the MI group. The mice from the EMC group showed reductions in body weights when compared with those from the E group. The animals from the EC, EM and EMC groups showed reductions in ascitic volume compared with those from the E group. The mice from the EMC group showed reductions in total cell numbers of ascitic fluid compared with those from the E, EC and EM groups. The combination of MI and CY was the most effective treatment for Ehrlich tumor ascites.