The Use of Fictional Stories in Science Exhibits: The Emperor Who Only Believed His Own Eyes

The authors explore how fictional narratives (stories) can be used as a learning tool in the context of informal science environments and specifically science centers. They base their argument on an analysis of the theoretical, structural and epistemological properties of stories and how those can serve to establish a story as a cognitive tool. They offer an example of an application of these properties to a story‐based learning design called “The Emperor who only Believed his own Eyes” in the context of a large, public science center, and specifically an exhibition about “senses”. This paper focuses on the idea of a “hack,” a museum sanctioned strategy for exploring the potential and implications of narrative‐based design as a way to reinterpret science exhibits in a way that can engage young users in content exploration and offer recommendations for future research.     

Kinematic effects of a short-term fatigue protocol on punt-kicking performance

The punt kick is a fundamental skill used in several team sports; however, there has been a lack of research on how fatigue affects its technique. The purpose of this study was to determine the effects of short-term fatigue on punt-kicking performance. Eight elite and sub-elite Australian Football players performed maximal drop punt kicks on their preferred leg prior to, during and after a match-specific fatigue protocol. Optotrak Certus collected kinematic data from kick foot toe-off until ball contact. Repeated-measures analysis of variance showed a significant increase in 20 m sprint times after each short-term protocol, indicating fatigue. Foot speed did not significantly change with fatigue; however, increases in the range of motion at the pelvis and kicking thigh, along with increases in kicking thigh angular velocity, occurred. For the support leg, maximum knee flexion angular velocity increased while there was greater flexion found at the knee and hip, and greater range of motion at the knee. Players are able to make kinematic adaptations in order to maintain foot speed while punting for maximal distance after short-term efforts.     

Learning and the new growth theories: policy dilemma

This paper identifies and interprets the six essential steps in the development of neoclassical growth theory from the Solow–Swan model to the new growth theory models of sustained endogenous growth driven by learning (e.g., [Romer, P., 1990. Endogenous technological change. Journal of Political Economy, 98 (5): S71–S102]). The success of that modeling exercise is based on the specification of selected assumptions about learning in industry. The practical shortcomings of the exercise are highlighted by the various and conflicting policy implications arising from the selection of attributes. It is concluded that better policies may follow from basing assumptions of learning behavior on the understanding of the process and strategy of learning that is emerging from institutional and evolutionary work.     

品牌忠诚度已成为历史

在这个"价格就是王道"的市场大环境下,消费者对品牌的忠诚度已大不如前。相比于对品牌的情感依赖,价格的低廉往往是决定消费者购买产品的原动力。在各大商家开展的促销活动面前,身为消费者能否禁得住诱惑?     

Parenting and the Adjustment of Children Born to Gay Fathers Through Surrogacy

Findings are presented on a study of 40 gay father families created through surrogacy and a comparison group of 55 lesbian mother families created through donor insemination with a child aged 3–9 years. Standardized interview, observational and questionnaire measures of stigmatization, quality of parent–child relationships, and children's adjustment were administered to parents, children, and teachers. Children in both family types showed high levels of adjustment with lower levels of children's internalizing problems reported by gay fathers. Irrespective of family type, children whose parents perceived greater stigmatization and children who experienced higher levels of negative parenting showed higher levels of parent‐reported externalizing problems. The findings contribute to theoretical understanding of the role of family structure and family processes in child adjustment.     

Kinematics of preferred and non-preferred handballing in Australian football

In Australian football (AF), handballing proficiently with both the preferred and non-preferred arm is important at elite levels; yet, little information is available for handballing on the non-preferred arm. This study compared preferred and non-preferred arm handballing techniques. Optotrak Certus (100 Hz) collected three-dimensional data for 19 elite AF players performing handballs with the preferred and non-preferred arms. Position data, range of motion (ROM), and linear and angular velocities were collected and compared between preferred and non-preferred arms using dependent t-tests. The preferred arm exhibited significantly greater forearm and humerus ROM and angular velocity and significantly greater shoulder angular velocity at ball contact compared to the non-preferred arm. In addition, the preferred arm produced a significantly greater range of lateral bend and maximum lower-trunk speed, maximum strike-side hip speed and hand speed at ball contact than the non-preferred arm. The non-preferred arm exhibited a significantly greater shoulder angle and lower- and upper-trunk orientation angle, but significantly lower support-elbow angle, trunk ROM, and trunk rotation velocity compared to the preferred arm. Reduced ROM and angular velocities found in non-preferred arm handballs indicates a reduction in the degrees of freedom and a less developed skill. Findings have implication for development of handballing on the non-preferred arm.