Politics and technology : friends or enemies of the story?

Taking its cue from the conference at which it was presented, this article considers both old stories and new ways, and addresses the question of the impact not only of new technology but also of politics upon 'the story'. Fundamental is the question of whether politics and technology might be considered friends or enemies of the story. Drawing on her long term experiences as an interviewer, the author interrogates particular oral history projects undertaken into children's play lore and play ways, to show how children's games and play time activities have been politicised. Locating her analysis in an international context of US legislation and British and Australian research, the author examines how play itself has become the plaything of both politicians and fear. She then examines the impact of high fidelity recording equipment and the universal accessibility of material located on the internet to address the question of technology as friend of the story, ultimately concluding that the story and the question will both go on.

DNA found in human immunodeficiency virus type 1 particles may not be required for infectivity

We have studied the presence and significance of retroviral genome-derived DNA in the core of human immunodeficiency virus (HIV) particles produced from transfections of HXB2 expression vectors in COS-7 cells and from HIV type 1 IIIB chronically infected H9 cells. Viruses purified by sucrose cushion centrifugation and treated with DNase I contained 1000-fold more viral RNA than DNA. However protease-defective viruses that contained only pl60 ga~p°z had less than 100 times the amount of DNA in their cores than wild-type viruses suggesting that the p66/p51 form of reverse transcriptase was responsible for DNA transcription. Viruses produced by transfections in the presence of 3'-azido-3'-deoxythymidine (AZT) contained the viral RNA genome but only DNA of premature length because of the chain terminating effects of AZT. However such viruses were as infectious for CD4 + cells as wild-type virus. We conclude that retrovirus-derived DNA in HIV-1 particles is not required for infection and does not play a significant role in this process.

Tumor progression locus 2 (Tpl2) deficiency does not protect against obesity-induced metabolic disease

Obesity is associated with a state of chronic low grade inflammation that plays an important role in the development of insulin resistance. Tumor progression locus 2 (Tpl2) is a serine/threonine mitogen activated protein kinase kinase kinase (MAP3K) involved in regulating responses to specific inflammatory stimuli. Here we have used mice lacking Tpl2 to examine its role in obesity-associated insulin resistance. Wild type (wt) and tpl22/2 mice accumulated comparable amounts of fat and lean mass when fed either a standard chow diet or two different high fat (HF) diets containing either 42% or 59% of energy content derived from fat. No differences in glucose tolerance were observed between wt and tpl22/2 mice on any of these diets. Insulin tolerance was similar on both standard chow and 42% HF diets, but was slightly impaired in tpl22/2 mice fed the 59% HFD. While gene expression markers of macrophage recruitment and inflammation were increased in the white adipose tissue of HF fed mice compared with standard chow fed mice, no differences were observed between wt and tpl2 mice. Finally, a HF diet did not increase Tpl2 expression nor did it activate Extracellular Signal-Regulated Kinase 1/2 (ERK1/2), the MAPK downstream of Tpl2. These findings argue that Tpl2 does not play a non-redundant role in obesity associated metabolic dysfunction.

Ventrolateral periaqueductal gray lesion attenuates nociception but does not change anxiety-like indices or fear-induced antinociception in mice

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Videogames and Aggression in Teenagers

Victor Sazonov (Russia). Video Games and Aggression in Teenagers. Mr. Sazonov works as a psychologist at the Obninsk Linguistic College and worked on this research from July 1996 to June 1997. Mr. Sazonov conducted a survey of 200 tenth and eleventh graders in Moscow (94 boys and 106 girls), in which they were asked to estimate the total amount of time they spent playing video games each week and which games were the most popular. Aggression was also assessed using two measures, the first dealing with manifest physical aggression and the second with aggressive behavioural delinquency. The data collected showed that 62% of teenagers spend at least one hour a week playing video games, with 10% spending over seven hours on them. Girls tended to play less than boys (1.6 and 2.8 hours on average respectively). Eight of the ten most popular games require the player to perform acts of a violent nature. Boys also scored higher on the index of aggressive behavioural delinquency, with a mean of 7.0 compared to 4.6 for girls. The results of the correlation analysis between time spent playing video games and measures of aggression were mixed. No relation was found between manifest physical aggression and time spent on the games, although in the case of aggressive behavioural delinquency the link was significant, which seems to indicate that aggressive teenagers spend more time playing video games. While the lack of significant correlations between violent games and aggression suggest that video games may not in fact be as great a menace as their critics suggest, Mr. Sazonov admits that these findings may be influenced by the high number of teenagers who do not play games at all or play relatively little. He also suggests that the abstract nature of the violence in games (often directed against aliens or spaceships) may make it less of a risk than the more realistic violence seen on television. In summary, however, he concludes that his results provide more support for the theories saying that violent video games provide a stimulus to violent action, than for those which suggest that they may help defuse violent tendencies.

Prolactin is not a juvenile hormone in Xenopus laevis metamorphosis

Prolactin (PRL) is widely considered to be the juvenile hormone of anuran tadpoles and to counteract the effects of thyroid hormone (TH), the hormone that controls amphibian metamorphosis. This putative function was concluded mainly from experiments in which mammalian PRL was injected into tadpoles or added to cultured tadpole tissues. In this study, we show that overexpression of ovine or Xenopus laevis PRL in transgenic X. laevis does not prolong tadpole life, establishing that PRL does not play a role in the life cycle of amphibians that is equivalent to that of juvenile hormone in insect metamorphosis. However, overexpression of PRL produces tailed frogs by reversing specifically some but not all of the programs of tail resorption and stimulating growth of fibroblasts in the tail. Whereas TH induces muscle resorption in tails of these transgenics, the tail fibroblasts continue to proliferate resulting in a fibrotic tail that is resistant to TH.

Developmental Activities That Lead to Dropout and Investment in Sport

Background: Studies suggest that expert performance in sport is the result of long-term engagement in a highly specialized form of training termed deliberate practice. The relationship between accumulated deliberate practice and performance predicts that those who begin deliberate practice at a young age accumulate more practice hours over time and would, therefore, have a significant performance advantage. However, qualitative studies have shown that a large amount of sport-specific practice at a young age may lead to negative consequences, such as dropout, and is not necessarily the only path to expert performance in sport. Studies have yet to investigate the activity context, such as the amount of early sport participation, deliberate play and deliberate practice within which dropout occurs. Purpose: To determine whether the nature and amount of childhood-organized sport, deliberate play and deliberate practice participation influence athletes' subsequent decisions to drop out or invest in organized sport. It was hypothesized that young athletes who drop out will have sampled fewer sports, spent less time in deliberate play activities and spent more time in deliberate practice activities during childhood sport involvement. Participants: The parents of eight current, high-level, male, minor ice hockey players formed an active group. The parents of four high-level, male, minor ice hockey players who had recently withdrawn from competitive hockey formed a dropout group. Data collection: Parents completed a structured retrospective survey designed to assess their sons' involvement in organized sport, deliberate play and deliberate practice activities from ages 6 to 13. Data analysis: A complete data-set was available for ages 6 through 13, resulting in a longitudinal data-set spanning eight years. This eight-year range was divided into three levels of development corresponding to the players' progress through the youth ice hockey system. Level one encompassed ages 6–9, level two included ages 10–11 and level three covered ages 12–13. Descriptive statistics were used to report the ages at which the active and dropout players first engaged in select hockey activities. ANOVA with repeated measures across the three levels of development was used to compare the number of sports the active and dropout players were involved in outside of hockey, the number of hours spent in these sports, and involvement in various hockey-related activities. Findings: Results indicated that both the active and dropout players enjoyed a diverse and playful introduction to sport. Furthermore, the active and dropout players invested similar amounts of time in organized hockey games, organized hockey practices, specialized hockey training activities (e.g. hockey camps) and hockey play. However, analysis revealed that the dropout players began off-ice training at a younger age and invested significantly more hours/year in off-ice training at ages 12–13, indicating that engaging in off-ice training activities at a younger age may have negative implications for long-term ice hockey participation. Conclusion: These results are consistent with previous research that has found that early diversification does not hinder sport-specific skill development and it may, in fact, be preferable to early specialization. The active and dropout players differed in one important aspect of deliberate practice: off-ice training activities. The dropout players began off-ice training at a younger age, and participated in more off-ice training at ages 12 and 13 than their active counterparts. This indicates a form of early specialization and supports the postulate that early involvement in practice activities that are not enjoyable may ultimately undermine the intrinsic motivation to continue in sport. Youth sport programs should not focus on developing athletic fitness through intense and routine training, but rather on sport-specific practice, games and play activities that foster fun and enjoyment.

Translation of the flavivirus Kunjin NS3 gene in cis but not its RNA sequence or secondary structure is essential for efficient RNA packaging

Our previous studies using trans-complementation analysis of Kunjin virus (KUN) full-length cDNA clones harboring in-frame deletions in the NS3 gene demonstrated the inability of these defective complemented RNAs to be packaged into virus particles (W. J. Liu, P. L. Sedlak, N. Kondratieva, and A. A. Khromykh, J. Virol. 76:10766-10775). In this study we aimed to establish whether this requirement for NS3 in RNA packaging is determined by the secondary RNA structure of the NS3 gene or by the essential role of the translated NS3 gene product. Multiple silent mutations of three computer-predicted stable RNA structures in the NS3 coding region of KUN replicon RNA aimed at disrupting RNA secondary structure without affecting amino acid sequence did not affect RNA replication and packaging into virus-like particles in the packaging cell line, thus demonstrating that the predicted conserved RNA structures in the NS3 gene do not play a role in RNA replication and/or packaging. In contrast, double frameshift mutations in the NS3 coding region of full-length KUN RNA, producing scrambled NS3 protein but retaining secondary RNA structure, resulted in the loss of ability of these defective RNAs to be packaged into virus particles in complementation experiments in KUN replicon-expressing cells. Furthermore, the more robust complementation-packaging system based on established stable cell lines producing large amounts of complemented replicating NS3-deficient replicon RNAs and infection with KUN virus to provide structural proteins also failed to detect any secreted virus-like particles containing packaged NS3-deficient replicon RNAs. These results have now firmly established the requirement of KUN NS3 protein translated in cis for genome packaging into virus particles.

A MEMÓRIA DE CURTO PRAZO DO UNIVERSITÁRIO E A PRÁTICA DE JOGOS: UM ESTUDO EXPLORATÓRIO

Este estudo avalia inicialmente a memória de curto prazo de estudantes universitários; verifica a seguir as modalidades de jogos por esses universitários e a frequência com que os mesmos são praticados e, finalmente, relaciona o nível de memória de curto prazo verificado com a prática de jogos. Parte da hipótese de que a prática de jogos influencia na memória de curto prazo. Utiliza-se do Teste Pictórico de Memória TEPIC-M de Rueda, F. J. M. e Sisto, F. F., devidamente validado para nossa realidade e de escala auto-avaliativa de prática de jogos de lazer/esporte, a qual visa verificar o tipo de jogo praticado, de movimentação física, raciocínio lógico ou conhecimento e os jogos digitais. Desenvolve-se junto a 100 universitários, de ambos os sexos. Os resultados são analisados por meio do Statistical Package for Social Sciences for Windows, SPSS, versão 12.0. Os níveis de memória de curto prazo encontrados foram muito baixos: Inferior (66%), Médio Inferior (25%); Médio (2%); Médio Superior (6%) e Superior (1%). A prática de jogos em suas diversas modalidades também foi reduzida em Jogos de Movimento, JM, e em Jogos Digitais, JD (25%) e maior em Jogos de Raciocínio, JR (61%). A comparação entre os resultados do TEPIC-M e a frequência de participação em JM, revelou-se positiva, uma vez que os que não praticam nunca JM, 74%, não atingiram sequer o nível médio de memória; o mesmo sendo observado em relação à JD, com 70% dos participantes que não praticam esses jogos, sem atingir o nível médio de memória; e, em relação a JR, uma porcentagem menor (44%) dos que não praticam esses jogos, sem atingir o nível médio de memória, dados que indiretamente, comprovam a hipótese deste estudo.

O cuidado de enfermagem à criança e ao adolescente vítima de queimaduras: implicações para a prática da enfermagem

Objetivou-se conhecer as implicações do cuidado à criança e ao adolescente vítimas de queimaduras para a prática da enfermagem. Realizou-se uma pesquisa descritiva e exploratória com abordagem qualitativa. Participaram dez profissionais da equipe de enfermagem de um Centro de Referência a Pacientes Queimados do sul do Brasil. Os dados foram coletados no segundo semestre de 2012 por meio de entrevistas semiestruturadas e analisados pela técnica de Análise de Conteúdo. Em relação aos sentimentos frente ao cuidado verificou-se que esses vivenciam ansiedade e tensão frente à dor do paciente, têm a sensação de doação querendo “fazer mais”, tristeza e abalo, sensação de utilidade e de competência ao ver os efeitos do cuidado, impotência por não terem controle sobre a situação vivenciada, revolta e raiva por não compreenderem o porquê este acidente aconteceu e pena dos pacientes e de seus familiares devido o seu sofrimento. Como facilidades para o cuidado referiram a ajuda mútua entre os membros da equipe aliada ao tempo de atuação no setor, o desenvolvimento de um bom relacionamento com a família da criança / adolescente, a sinceridade da criança ao manifestar seus sentimentos, uma identificação e afinidade maior para cuidar crianças e adolescentes e o adolescente ser mais aberto e entender com facilidade a linguagem utilizada no setor. Referiram como dificuldades à falta de preparo e a pouca habilidade para cuidar de crianças/ adolescentes com dor, o desconhecimento acerca do paciente, a falta de habilidades técnicas para realizar procedimentos em crianças/ adolescentes, lidar com o familiar, lidar com a necessidade de manipular o corpo do adolescente, comunicar-se com crianças que não sabem expressar-se, pacientes que não falam o português e adolescentes que possuem linguagem própria, explicar para o paciente a magnitude do trauma sofrido e conversar com esses acerca das sequelas, deformidades e limitações com as quais terão que (con)viver. Quanto às estratégias para se instrumentalizar para o cuidado utilizam a leitura sobre queimaduras e curativos, leituras de materiais de outras áreas da saúde, uso de técnicas de abordagem e interação com pacientes e familiares, a prática diária no setor e a busca de apoio na equipe e na instituição, realizando atividades de educação continuada. Quanto às estratégias utilizadas para cuidar referiram o estabelecimento de vínculo e de uma relação dialógica, o uso de brincadeiras e atividades lúdicas, o fornecimento de apoio, a introdução da família no processo de cuidado, o uso da criatividade, a valorização do aspecto psicológico do paciente, a adaptação do cuidado de acordo com a faixa etária do paciente e o uso da escuta atenta e sensível. A partir dos dados concluiu-se que o cuidado de enfermagem a crianças e adolescentes vítimas de queimaduras é complexo bem como causador de impacto para os profissionais atuantes em Centros de Queimados. Acredita-se que o estudo possibilitará discutir e refletir acerca da prática profissional da enfermagem no Centro de Queimados frente ao cuidado à criança e ao Adolescente vítima de queimaduras.

Games as text, games as action: video games in the english classroom

Contemporary views of literacy, and of English and Language Arts curriculum recognise the importance of digital culture and communication forms in many young people's lives and the multiple forms of literacy students engage with as they work, interact and play. Amongst these, videogames, whether played on PCs, laptops, wiis, or on mobile devices of various kinds stand out as highly popular, engaging and sophisticated emergent cultural forms. Drawing on research in Australian secondary schools over a number of years, this paper describes approaches to working with games in the English classroom, and presents a model for critical games literacy which entails thinking of games as both text and action. It describes the ways in which the model might be used for planning and teaching with and about games, stressing the active nature of games and play, and calling on understandings of literacy as design.

MiLK: Transforming everyday places into dynamic learning spaces with mobile and web technologies

This paper explores how game authoring tools can teach processes that transform everyday places into engaging learning spaces. It discusses the motivation inherent in playing games and creating games for others, and how this stimulates an iterative process of creation and reflection and evokes a natural desire to engage in learning. The use of MiLK at the Adelaide Botanic Gardens is offered as a case in point. MiLK is an authoring tool that allows students and teachers to create and share SMS games for mobile phones. A group of South Australian high school students used MiLK to play a game, create their own games and play each other’s games during a day at the gardens. This paper details the learning processes involved in these activities and how the students, without prompting, reflected on their learning, conducted peer assessment, and engaged in a two-way discussion with their teacher about new technologies and their implications for learning. The paper concludes with a discussion of the needs and requirements of 21st century learners and how MiLK can support constructivist and connectivist teaching methods that engage learners and will produce an appropriately skilled future workforce.

The economics of the FIFA Football World Cup

The expansion of economics to ‘non-market topics’ has received increased attention in recent years. The economics of sports (football) is such a sub-field. This paper reports empirical evidence of team and referee performances in the FIFA World Cup 2002. The results reveal that being a hosting nation has a significant impact on the probability of winning a game. Furthermore, the strength of a team measured with the FIFA World Ranking does not play the important role presumed, which indicates that the element of uncertainty is working. The findings also indicate that the influence of a referee on the game result should not be neglected. Finally, the previous World Cup experiences seem to have the strongest impact on referees' performances during the game.

Profiling the offence patterns of disqualified drink drivers in Queensland, Australia.

While unlicensed driving does not play a direct causative role in road crashes, it represents a major problem for road safety. A particular subgroup of concern is those offenders who continue to drive after having their licence disqualified for drink driving. Surveys of disqualified drivers suggest that driving among this group is relatively common. Method This paper reports findings from an analysis of the driving records of over 545,000 Queensland drivers who experienced a licence sanction between January 2003 and December 2008. The sample included drivers who were disqualified by a court (e.g., for drink driving); those who licence had been suspended administratively (e.g., for accumulation of demerit points); and those who were placed on a restricted licence. Results Overall, 95,461 of the drivers in the sample were disqualified from driving for a drink driving offence. During the period, these drivers were issued with a total of 2,644,619 traffic infringements with approximately 12% (n = 8, 095) convicted of a further drink driving offence while disqualified. Other traffic offences detected during this period including unlicensed driving (18%), driving an unregistered vehicle (27%), speeding (21%), dangerous driving (36%), mobile phone use (35%), non-restraint use (32%), and other moving violation (23%). Offending behaviour was more common among men than women. Conclusions While licence disqualification has previously been shown to be a relatively effective sanction for managing the behaviour of drink driving offenders, the results of the current study highlight that it is a far from perfect tool since many offenders continue to commit both drink driving and other traffic offences while disqualified. As such, this study highlights the ongoing need to enhance the detection of disqualified and unlicensed driving in order to deter this behaviour.

Analysis of build-up of heavy metals and volatile organics on urban roads in Gold Coast, Australia

Urban water quality can be significantly impaired by the build-up of pollutants such as heavy metals and volatile organics on urban road surfaces due to vehicular traffic. Any control strategy for the mitigation of traffic related build-up of heavy metals and volatile organic pollutants should be based on the knowledge of their build-up processes. In the study discussed in this paper, the outcomes of a detailed experiment investigation into build-up processes of heavy metals and volatile organics are presented. It was found that traffic parameters such as average daily traffic, volume over capacity ratio and surface texture depth had similar strong correlations with the build-up of heavy metals and volatile organics. Multicriteria decision analyses revealed that the 1 - 74 um particulate fraction of total suspended solids (TSS) could be regarded as a surrogate indicator for particulate heavy metals in build-up and this same fraction of total organic carbon could be regarded as a surrogate indicator for particulate volatile organics build-up. In terms of pollutants affinity, TSS was found to be the predominant parameter for particulate heavy metals build-up and total dissolved solids was found to be the predominant parameter for he potential dissolved particulate fraction in heavy metals build-up. It was also found that land use did not play a significant role in the build-up of traffic generated heavy metals and volatile organics.