The romance and reality of policy‐making and implementation: a case study of the target‐oriented curriculum in Hong Kong

One of the major innovations in the recent wave of education reform in Hong Kong is the target‐oriented curriculum. An interesting feature of this new curriculum initiative was its amoebic characteristics – changing shape and focus in its course of development. It was reshaped from an assessment system for accountability purposes to a centrally developed curriculum initiative for improving teaching and learning, and finally to a school‐based curriculum development. In this paper, this course of development and the reasons behind it will be described and analysed. The study suggests that the two‐tier educational policy and implementation system in Hong Kong is a major cause leading to such a phenomenon. If this system were not improved, the possibility of achieving real changes at the school and classroom level would be low.     

Electroosmotic flow hysteresis for dissimilar ionic solutions

Electroosmotic flow (EOF) with two or more fluids is commonly encountered in various microfluidics applications. However, no investigation has hitherto been conducted to investigate the hysteretic or flow direction-dependent behavior during the displacement flow of solutions with dissimilar ionic species. In this investigation, electroosmotic displacement flow involving dissimilar ionic solutions was studied experimentally through a current monitoring method and numerically through finite element simulations. The flow hysteresis can be characterized by the turning and displacement times; turning time refers to the abrupt gradient change of current-time curve while displacement time is the time for one solution to completely displace the other solution. Both experimental and simulation results illustrate that the turning and displacement times for a particular solution pair can be directional-dependent, indicating that the flow conditions in the microchannel are not the same in the two different flow directions. The mechanics of EOF hysteresis was elucidated through the theoretical model which includes the ionic mobility of each species, a major governing parameter. Two distinct mechanics have been identified as the causes for the EOF hysteresis involving dissimilar ionic solutions: the widening/sharpening effect of interfacial region between the two solutions and the difference in ion concentration distributions (and thus average zeta potentials) in different flow directions. The outcome of this investigation contributes to the fundamental understanding of flow behavior in microfluidic systems involving solution pair with dissimilar ionic species.     

Student Participation in Scholarly Communication and Library Digital Collections: A Case Study from the University of Washington Bothell Library

The University of Washington Bothell & Cascadia College Library recently partnered with a faculty member to develop a digital collection showcasing student-produced digital oral histories. This case study describes the role of the library as faculty partner, student resource, and repository/publisher. Archiving and publishing requirements—such as file formats, agreement forms, and metadata—were integrated into the assignment and included as part of each project's overall evaluation and grade. Librarians provided instruction to teach students about topics related to knowledge production and scholarly communication. Assessment included student feedback surveys and faculty feedback to librarians.     

Starting the data conversation: informing data services at an academic health sciences library

Objective

The research obtained information to plan data-related products and services.

Methods

Biomedical researchers in an academic medical center were selected using purposive sampling and interviewed using open-ended questions based on a literature review. Interviews were conducted until saturation was achieved.

Results

Interview responses informed library planners about researchers’ key data issues.

Conclusions

This approach proved valuable for planning data management products and services and raising library visibility among clients in the research data realm.     

Block Talk: Spatial Language During Block Play

Spatial skills are a central component of intellect and show marked individual differences. There is evidence that variations in the spatial language young children hear, which directs their attention to important aspects of the spatial environment, may be one of the mechanisms that contributes to these differences. To investigate how play affects variations in language, parents and children were assigned to 1 of 3 conditions: free play with blocks, guided play, or play with preassembled structures (Study 1). Parents in the guided play condition produced significantly higher proportions of spatial talk than parents in the other two conditions, and children in the guided play condition produced significantly more spatial talk than those in the free play condition. Study 2 established baselines of spatial language during activities not involving spatial materials. Proportions of spatial words were lower than those in any of the conditions of Experiment 1. In sum, interaction with blocks naturally elicits elevated levels of spatial language, especially in the context of guided play, suggesting simple‐to‐execute educational interventions.     

Teaching Science as a Process,Not a Set of Facts

Science & Education - The widespread misperception of science as a deliverer of irrefutable facts, rather than a deliberative process, is undermining public trust in science. Science education...     

Effective ranking and search techniques for Web resources considering semantic relationships

On the Semantic Web, the types of resources and the semantic relationships between resources are defined in an ontology. By using that information, the accuracy of information retrieval can be improved.