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131.
Vongai Mpofu Femi S. Otulaja Emmanuel Mushayikwa 《Cultural Studies of Science Education》2014,9(1):221-242
A theoretical framework is an important component of a research study. It grounds the study and guides the methodological design. It also forms a reference point for the interpretation of the research findings. This paper conceptually examines the process of constructing a multi-focal theoretical lens for guiding studies that aim to accommodate local culture in science classrooms. A multi-focal approach is adopted because the integration of indigenous knowledge and modern classroom science is complex. The central argument in this paper is that a multi-focal lens accommodates the multifaceted nature of integrating indigenous knowledge and western oriented classroom science. The objective of the paper, therefore, is to construct a theoretical framework that can be used to guide and inform the integration of indigenous knowledge and western science at classroom science level. The traditional plant healing form of indigenous knowledge is used as a case study. The paper is important for raising the complexities, tensions and dilemmas inherent in the design and implementation of indigenous knowledge-science integrated curricula. An understanding of the issues raised will pave the way towards achieving culturally relevant classroom science. 相似文献
132.
This paper proposes a control algorithm for networks of multiple heterogeneous robot manipulators, which solves the leader–follower and the leaderless consensus problems in the operational space. In the leader–follower scenario, the controller ensures that all the robots in the network asymptotically reach a given leader pose (position and orientation), provided that, at least, one follower robot has access to the leader pose. Without a leader pose, in the leaderless problem, the robots asymptotically reach a pose of consensus. The controller is a simple distributed proportional plus damping injection (P+d) scheme which does not require velocity measurements. A singularity-free representation, unit quaternions, is used to describe the orientation of each manipulator. The paper presents some simulations, with a network of six 6-Degrees-of-Freedom (DoF) manipulators, and experiments, with a network of three 6-DoF manipulators, to show the effectiveness of the proposed controller. 相似文献
133.
Researching the efficacy of online learning: A collaborative effort amongst scholars in Asian open universities 总被引:1,自引:0,他引:1
This article reports on a collaborative effort amongst scholars from ODL institutions across Asia that resulted in an analysis of the status of online learning. Eleven leading open universities participated in this project, each having representatives join the project team. The exchange among team members and data collection was conducted solely online and comprised the following three stages: (1) continuous email exchange; (2) institutional profile survey; and (3) student perception survey of online learning. Altogether, 1906 students returned valid questionnaires. The results reveal an array of methodologies used to design, implement and deliver online learning and include the perceptions of users on the advantages, disadvantages and barriers to learning online from an ODL perspective in Asia. 相似文献
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Memorization strategies in basic school: grade-related differences in reported use and effectiveness
Hennok Liis Mädamürk Kaja Kikas Eve 《European Journal of Psychology of Education - EJPE》2023,38(3):945-961
European Journal of Psychology of Education - The study aims to examine students’ awareness and reported use of learning strategies as well as their effectiveness for word recognition using a... 相似文献
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138.
Emmanuel J Favaloro Giuseppe Lippi 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2012,22(3):329-341
The tests currently employed within most haemostasis laboratories to monitor anticoagulant therapy largely comprise the prothrombin time (PT)/ International Normalised Ratio (INR) and the activated partial thromboplastin time (APTT). These are respectively used to monitor Vitamin K antagonists (VKAs) such as warfarin, and unfractionated heparin. Additional tests that laboratories may also employ for assessing or monitoring unfractionated heparin include thrombin time (TT) and the anti-Xa assay, which can also be used to monitor low molecular weight heparin. Several new anti-thrombotic agents have recently emerged, or are in the final process of clinical evaluation. These novel drugs that include Dabigatran etexilate and Rivaroxaban would not theoretically require monitoring; however, testing is useful in specific situations. The tests currently used to monitor VKAs and heparin are typically either too sensitive or too insensitive to the new drugs to be used as ‘typically performed in laboratories’, and may thus require some methodological adjustments to increase or decrease their sensitivity. Alternately, different tests may be better employed in these assessments. Whatever the case, laboratories may soon be performing a reduced or possibly increased number of tests, the same kind of tests but perhaps differently, or conceivably different assay panels. Specific laboratory guidance on the choice of the appropriate test to be ordered according to the drug being administered, as well as on appropriate interpretation of test results, will also be necessary. The current report reviews the current state of play and provides a glimpse to the possible future of the coagulation laboratory. 相似文献
139.
Ann Lorek Kimberly Ehntholt Anne Nesbitt Emmanuel Wey Chipo Githinji Eve Rossor Rush Wickramasinghe 《Child abuse & neglect》2009,33(9):573-585
ObjectiveThe present study aimed to assess the mental and physical health of children held within a British immigration detention center.MethodA total of 24 detained children (aged 3 months to 17 years) were assessed with their parents or carer after being referred by a registered legal charity. Thirteen were seen by a pediatrician alone, 4 by a psychologist alone, and 7 by both professions using semi-structured clinical interviews. The psychologist also used standardized self-report questionnaires to measure psychopathology.ResultsDuring the psychological assessment of 11 children, 8 met criteria for psychiatric “caseness” on the Strengths and Difficulties Questionnaire. All 11 reported symptoms of depression and anxiety. Sleep problems, somatic complaints, poor appetite, emotional symptoms, and behavioral difficulties were common. Symptoms of global distress were also reported by all 9 parents. According to pediatric assessment 8 out of 20 children had lost weight. Six had missed health appointments and 2 were taken to hospital. Nutritional, developmental, educational, and child protection concerns were raised.ConclusionsDetained children were found to be experiencing mental and physical health difficulties of recent onset, which appeared to be related to the detention experience. These findings support previous Australian studies demonstrating that detention is not in the best interest of the child. It suggests that current UK policies regarding the detention of children for purposes of immigration control should be re-examined. Further research in the area is required.Practice implicationsAlthough high levels of mental and physical health problems, as well as child protection concerns were detected, detained families had very limited access to appropriate assessment, support or treatment. The traumatic experience of detention itself also has implications for the sizeable proportion of psychologically distressed children who are eventually released from detention and expected to successfully reintegrate into British society; while those children who are deported are returned with increased vulnerability to future stressors. 相似文献
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