7,423 research outputs found

    Wikipedia editing and information literacy: A case study

    Get PDF
    Purpose: This paper aims to evaluate the success of a Wikipedia editing assessment designed to improve the information literacy skills of a cohort of first-year undergraduate health sciences students. Design/methodology/approach: In this action research case study (known hereafter as “the project” to differentiate this action research from the students’ own research), students researched, wrote and published Wikipedia articles on Australia-centric health topics. Students were given a pre- and post-test to assess levels of self-confidence in finding, evaluating and referencing information. Student work was also analysed in terms of article length and quantity and the type of information sources used. Findings: Tests revealed that students’ self-confidence in their information literacy skills improved overall. Analysis of student work revealed that students wrote longer articles and incorporated more references than expected. References used were of appropriate quality relevant to the article despite minimal instructions. Originality/value: There are few studies that investigate information literacy development through Wikipedia editing in Australian universities. This study shows that Wikipedia editing is an effective way to carry out student assessment prior to essay writing and an innovative platform to improve information literacy skills in undergraduate students

    Creating Reusable Educational Components: Lessons from DLESE

    Get PDF
    Reuse of educational materials is integral to many educator tasks, from designing a course to preparing for a lab or class. This article describes a study on the reuse of educational materials in the context of the Digital Library for Earth System Education (DLESE), a community-owned and governed facility offering high-quality teaching and learning resources for Earth system education. The study noted that educational resource designers often do not develop components with reuse in mind, making it more difficult or impossible for other educators to find and use their material, and that the 'findability' and reusability of community-created digital educational resources is highly dependent on the presentational and structural design of the resources themselves. The authors recommend that all resources clearly state the creator's name and contact information, relevant copyright restrictions, the most significant date for the resource (specifying creation or revision), and the intended grade level. Educational levels: Graduate or professional, Graduate or professional, Graduate or professional

    Synthesis, Properties, and Solid-State Structures of a Series of 6,13-Dicyanoheteropentacene Analogues: Towards New Liquid Crystalline Materials

    Get PDF
    The focus of this thesis is the synthesis of novel heterocyclic pentacene analogs and the investigation of their self-organization for the development of new materials for organic electronics. The thesis consists of two interrelated projects: the first being development of an improved synthesis of a series of liquid crystalline dicyanotetraoxapentacenes (DCTOPs) while the second entails the exploratory synthesis of several novel dicyanoheteropentacene analogues and a preliminary investigation of their photophysical properties and solid-state structures. Both of these projects centre around the use of nucleophilic aromatic substitution reactions on tetrafluoroterephthalonitrile. Soluble, tetrakis(bis(alkoxy)phenyl)-substituted DCTOPs were originally synthesised via a short synthesis complicated by a tedious purification required in the last step. Despite this, derivatives bearing long alkyl chains were prepared which displayed liquid crystalline properties in addition to aggregation-induced emission. Building upon this success, but with the goal of achieving DCTOPs in an efficient synthetic manner for this thesis, changes were made which eliminated the troublesome fourfold Suzuki coupling by changing the order of reactions, which in turn required a protection-deprotection sequence. Purification in the new synthesis was greatly simplified and the target tetraaryl-DCTOPs were accessed in good overall yields and purities. The synthesis and solid state structures of these DCTOPs are discussed in Chapter 2. Building on the methods developed in Chapter 2, several novel pentacene analogues containing combinations of nitrogen, oxygen, and sulfur atoms installed within the pentacene core were also synthesised. These compounds were prepared in good yields, and preliminary photophysical studies show that all the compounds displayed luminescence in solution and the solid state. It was also shown that replacement of O with N leads to a red shift in absorption and emission spectra. The X-ray crystal structures show that several of these compounds exhibit π−stacking in the solid state, which is an important design element for applications in organic electronics. The synthesis, photophysical properties, and solid-state organization of these novel 6,13-dicyanoheteropentacene analogues are discussed in Chapter 3

    Thermoelectric Outer Planets Spacecraft (TOPS) electronic packaging and cabling development summary report

    Get PDF
    Electronic packaging and cabling activities performed in support of the Thermoelectric Outer Planets Spacecraft (TOPS) Advanced Systems Technology (AST) project are detailed. It describes new electronic compartment, electronic assembly, and module concepts, and a new high-density, planar interconnection technique called discrete multilayer (DML). Development and qualification of high density cabling techniques, using small gage wire and microminiature connectors, are also reported

    Structure and Magnetic Properties of a 1D Alternating Cu(II) Monomer―Paddlewheel Chain

    Get PDF
    One-dimensional metal–organic coordination polymers make up a class of compounds with potential towards the development of practical, new magnetic materials. Herein, a rare example of an ABBABB coupled linear chain comprised of alternating dicopper(II) tetraacetate units bridged to copper(II) acetate monomer units via axial η2:η1:”2 coordinated acetate is reported. Examination of the structure, determined by small molecule X-ray crystallography, shows that each Cu(II) ion is in a dx2–y2 magnetic ground state. Magnetic susceptibility and magnetization data were collected and, consistent with the structural interpretation, demonstrate that the Cu(II) dimer (paddlewheel) exhibits classic antiferromagnetic exchange, while the S = 1/2 Cu(II) monomer is uncompensated in the ground state (low temperature regime.) Data were therefore fitted to a modified Bleaney-Bowers model, and results were consistent with the only other reported chain in this class for which magnetic data are available

    Copper(II)- and gold(III)-mediated cyclization of a thiourea to a substituted 2-aminobenzothiazole

    Get PDF
    Benzothiazole derivatives are a class of privileged molecules due to their biological activity and pharmaceutical applications. One route to these molecules is via intramolecular cyclization of thioureas to form substituted 2-aminobenzothiazoles, but this often requires harsh conditions or employs expensive metal catalysts. Herein, the copper(II)- and gold(III)-mediated cyclizations of thioureas to substituted 2-aminobenzothiazoles are reported. The single-crystal X-ray structures of the thiourea N-(3-methoxyphenyl)-N\u27- (pyridin-2-yl)thiourea, C13H13N3OS, and the intermediate metal complexes aquabis[5-methoxy-N-(pyridin-2-yl-ÎșN)-1,3-benzothiazol-2-amine-ÎșN3]copper(II) dinitrate, [Cu(C13H11N3OS)2(H2O)](NO3)2, and bis{2-[(5-methoxy-1,3-benzothiazol- 2-yl)amino]pyridin-1-ium} dichloridogold(I) chloride monohydrate, (C13H12N3OS)2[AuCl2]Cl⋅H2O, are reported. The copper complex exhibits a distorted trigonal–bipyramidal geometry, with direct metal-to-benzothiazoleligand coordination, while the gold complex is a salt containing the protonated uncoordinated benzothiazole, and offers evidence that metal reduction (in this case, AuIII to AuI) is required for the cyclization to proceed. As such, this study provides further mechanistic insight into the role of the metal cations in these transformations

    Peningkatan Prestasi Belajar Matematika Melalui Model Pembelajaran Kooperatif Tipe Numbered Heads Together pada Siswa Kelas III SD Inpres Onekore 3 Kecamatan Ende Tengah Tahun Pelajaran 2017/2018

    Get PDF
    The problem in this research is the low mathematics learning achievement achieved by students. Students who experienced learning completeness with KKM 65 reached 42,10% or as many as 8 people and students who had not completed learning were 57,89% or as many as 11 students. The data from the identification of problems showed that the average learning achievement obtained was 62,7. The highest and lowest scores achieved by students were 100 and 35 with a total of 4 students each. This study aims to improve teacher skills, students activities, and student mathematics learning achievement. The conclusion from the implementation of research using the NHT type cooperative learning model, namely the type of NHT cooperative learning model can improve teacher skills, student activities, and learning achievement

    Un plaidoyer pour l'évaluation de programme en contexte de pandémie

    Get PDF

    TRANSFIGURATION OF NATIONAL HEALTH FINANCING TO RURAL COMMUNITIES: A Case of Pastoro-Nomadic Communities in Marsabit County, Kenya.

    Get PDF
    Health financing is one of the important goals of any government. In Kenya, the government is exerting all effort to ensure its citizens’ health care needs are safeguarded through increased budgeting and putting in place requisite legislative measures. However, like any other developing nation, the dream of equity in accessing health care is not satisfactorily realized due to many challenges. For pastoralist/nomadic communities in the country, who are deemed marginalized in a considerable number of spheres relative to communities subscribing to other subsistence strategies, the solution is far from being hoped for. This research asks the question “how can national health financing be transfigured to suit the need of pastoral-nomadic communities?”. The research adopted descriptive research design to survey household in the four constituencies of Marsabit County. Respondents were selected using random sampling. Structured questionnaire and focused group discussion was used to gather data and using logistic regression. Many of them do not have a formal education and hence formal employment to enable them have consistent income to pay for their health cover forcing them depend on donors. It was recommended that education should be enhanced so as to upscale the enrolment to health insurance.  Further, they should be encouraged to join to a welfare group so as to access finances for payment of insurance subscription. The government should diversify mode of payment and also mobilize resources that will be used to help the poor pay for their health financing need

    200-Hour Yoga Teacher Training: La Pura Vida

    Get PDF
    • 

    corecore