12 research outputs found

    Galah poisoning : kill the cocky

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    NO! Not the one that tills the land, but his enemy, the pink and grey galah (Kakatoe rosei-capilla). Farmers have usually found the destruction of galahs damaging standing crops and bagged, or stored grain, fairly difficult. Past methods of boiling grain and adding sweetened substances are rather laborious and require a lot of time. Now, a quick and relatively simple method is available to farmers, using paraffin oil to adhere poison to the grain

    Development and assessment of a 3D tooth morphology quiz for dental students

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    Tooth morphology has a pivotal role in the dental curriculum and provides one of the important foundations of clinical practice. To supplement tooth morphology teaching a threeā€dimensional (3D) quiz application (app) was developed. The 3D resource enables students to study tooth morphology actively by selecting teeth from an interactive quiz, modify their viewpoint and level of zoom. Additionally, students are able to rotate the tooth to obtain a 3D spatial understanding of the different surfaces of the tooth. A crossā€over study was designed to allow comparison of studentsā€™ results after studying with the new application or traditionally with extracted/model teeth. Data show that the app provides an efficient learning tool and that studentsā€™ scores improve with usage (18% increase over three weeks, P < 0.001). Data also show that student assessment scores were correlated with scores obtained while using the app but were not influenced by the teaching modality initially accessed (r2 = 0.175, P < 0.01). Comparison of the 2016 and 2017 class performance shows that the class that had access to the app performed significantly better on their final tooth morphology assessment (68.0% Ā±15.0 vs. 75.3% Ā±13.4, P < 0.01). Furthermore, students reported that the 3D application was intuitive, provided useful feedback, presented the key features of the teeth, and assisted in learning tooth morphology. The 3D tooth morphology app thus provides students with a useful adjunct teaching tool for learning dental anatomy

    Criminal Justice in Hong Kong

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    Containing a wealth of archival material and statistical data on crime and criminal justice, Criminal Justice in Hong Kong presents a detailed evaluation of Hong Kongā€™s criminal justice system, both past and present. Exploring the justice system and the perceptions of popular culture, this book demonstrates how the current criminal justice system has been influenced and shaped over time by Hong Kongā€™s historical position between ā€˜Eastā€™ and ā€˜Westā€™. Jones and Vaggā€™s examination of the justice system not only takes into account geographical changes, like the erection of the border with communist China in 1950 but also insists that any deep understanding of the current system requires a dialogue with the rich and complex narratives of Hong Kongā€™s history. It explores a range of questions, including: * How were Hong Kong's criminal justice institutions and practices formed? * What has been its experience of law and order? * How has Hong Kong's status as between 'East' and 'West' affected its social, political and legal institutions? Careful and detailed, this analysis of one of the most economically successful, politically stable and safe yet frequently misrepresented cities, is a valuable addition to the bookshelves of all undergraduate and postgraduate students studying Asian law. (Routledge

    A Novel Double-Sided Offset Stator Axial-Flux Permanent Magnet Motor for Electric Vehicles

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    Axial-flux permanent magnet (AFPM) motors have been attracting great interest due to their key advantages of high-torque density and compact structure. Concentrated windings are commonly used for AFPM motors since they significantly reduce the radial length of the end windings. This paper proposes a novel double-sided stator single-rotor motor topology where one stator is offset by &pi; radians. This arrangement can cancel significant space harmonics produced by the concentrated winding and reduce the core and permanent magnet losses. Analytical analysis and finite element analysis (FEA) are used to verify the principle and validate the topology. The simulation results demonstrate that this proposed double-sided offset stator motor can reduce the core loss and permanent magnet loss significantly at base speed compared with the conventional double-sided stator single-rotor motor. In addition, the magnetic core saturation and induced voltage for the double-sided offset stator motor are significantly reduced

    A Novel Double-Sided Offset Stator Axial-Flux Permanent Magnet Motor for Electric Vehicles

    No full text
    Axial-flux permanent magnet (AFPM) motors have been attracting great interest due to their key advantages of high-torque density and compact structure. Concentrated windings are commonly used for AFPM motors since they significantly reduce the radial length of the end windings. This paper proposes a novel double-sided stator single-rotor motor topology where one stator is offset by Ļ€ radians. This arrangement can cancel significant space harmonics produced by the concentrated winding and reduce the core and permanent magnet losses. Analytical analysis and finite element analysis (FEA) are used to verify the principle and validate the topology. The simulation results demonstrate that this proposed double-sided offset stator motor can reduce the core loss and permanent magnet loss significantly at base speed compared with the conventional double-sided stator single-rotor motor. In addition, the magnetic core saturation and induced voltage for the double-sided offset stator motor are significantly reduced

    Prenatal growth, postnatal growth and trait anxiety in late adulthood - the Helsinki Birth Cohort Study

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    Objective: trait anxiety may predispose to anxiety disorders and cardiovascular events. We tested whether prenatal growth or postnatal growth from birth to 11 years of age and in adulthood predict trait anxiety in late adulthood.Method: women (n = 951) and men (n = 753) reported trait anxiety using the Spielberger Trait Anxiety Scale at an average age of 63.4 years and growth was estimated from records.Results: higher trait anxiety was predicted by smaller body size at birth, in infancy and in adulthood. Moreover, faster growth particularly from seven to 11 years of age and slower growth between 11 and 63 years predicted higher trait anxiety.Conclusion: we found a pattern of pre- and postnatal growth that predisposed to higher trait anxiety in late adulthood. This pattern resembles that found to increase the risk of cardiovascular events and, thus, points to a shared common origin in a suboptimal prenatal and childhood developmental milieu
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