11,813 research outputs found
How to encourage educators to create and share reusable eLearning materials
No full textA reusable learning object (RLO) is a web-based multimedia digital resource based on a single learning objective, comprising a stand-alone collection of presentation, activity, assessment and links (Leeder et al, 2002, 2003), the advantage of which allow instructional designers to build small instructional components that can be re-used a number of times in different learning context (Wiley 2001). Reusable e-learning materials (REM) are known as the e-learning resources generated in the form of RLOs that utilise a wide range of multimedia components such as assessments and activities (Leeder tl al, 2003). REM offers a competitive advantage over interactive multimedia due to its cost effectiveness, reusability and scalability (Leeder et al, 2003, 2004; Muzio et al, 2001). Maximising learners’ engagement and motivation in the process of learning is critical towards learning outcomes (Alexander 2001). The integration of REM and face-to-face learning, known as interactive learning (IL), has been proposed in order to achieve this (Katzy, 2000; Sloman, 2001; Chang, 2002, 2003). There are problems involved during the integration, and technical problems often become the centre of attention (Grudin 1994). However, focus on the needs of educators and demands of their teaching and learning practice are ignored but important aspects in IL (Katzy, 2000; Sloman, 2001; Chang, 2002, 2003). Engaging educators in the creative process of REM content development is a recommended way for motivating educators and also allowing them to understand the benefits of using technology for teaching, learning and sharing purposes. (Leeder et al, 2002). By making “human factor” at the centre of practising e-learning, reuse of learning resources is further encouraged from active participation, feedback, peer sharing and IL, thus maximising learners’ engagement and motivation. In order to effectively create REM, a virtual learning environment (VLE) is often adopted at the heart of learning activities. But one such a disadvantage is the expectation of high quality materials required due to its principle of self-directed learning. However, a place for providing a forum for circulating ideas and resolving both technical and pedagogic problems is a solution (Leeder et al, 2003). This offers different educators and learners a collaborative environment face-to-face and in VLE, thus encouraging educators creating and sharing REM. User feedback on the use and effectiveness of REM delivered in the VLE is also an important step, since the peer review process can reflect REM evaluation (Leeder et al, 2003). This provides essential information for (1) knowing whether REM is helping to create and share REM and (2) knowing the extent of acceptance, adoption and uses of REM among educators. If the outcomes of (2) are not up to the expectation, providing practical workshops is a key factor, since this offers educators hand-on experience in creating, discussing and sharing REM, thus increasing their interests and enthusiasm in using REM. Finally, the active involvement of an organisation for providing learning assistance, workshops, consultancy, VLE and a series of interactive learning, is critical for maintaining momentum for encouraging educators in creating and sharing REM. This is an ongoing process that requires a strong collaboration and support between educators and this organisation, which can act as (1) a centre for learning, training and sharing and (2) a centre for providing recommended ways of practicing REM that suit individual cases, thus delivering the most effective REM by maximising the adoption of REM
sj-docx-2-cho-10.1177_18632521241229954 – Supplemental material for Optimizing calibration of modern skeletal maturity systems
No full textSupplemental material, sj-docx-2-cho-10.1177_18632521241229954 for Optimizing calibration of modern skeletal maturity systems by Ryan J Furdock, Andrew J Moyal, Alexander Benedick, Feng-Chang Lin, Yajing Hao, Daniel R Cooperman, James O Sanders and Raymond W Liu in Journal of Children’s Orthopaedics</p
Introduction: An Overview of the Reign of Alexander II
No full textBook Description: This volume explores aspects of the political, social, cultural, economic and religious development of Scotland in the reign of King Alexander II (1214-49). It constitutes the first full-length, multi-author study of the king and his reign. The nine contributors to the volume explore issues as diverse as the historiography of the reign, Anglo-Scottish relations, Church-State relations, economy and international trade, law, aristocratic symbolism, urban development and the territorial expansion of the kingdom. This book, the first major study of a reign which saw the Scottish monarchy achieve its mastery of northern mainland Britain, is of great importance to historians of medieval Scotland and the wider British Isles. The book is illustrated with 24 colour and b/w photographs and 5 maps and plans. Show More Show Les
Métricas de autor Alexander Sellamén-Garzón
No full textInforme de las métricas de autor del Dr. Alexander Sellamén-Garzón de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicacionesReport of the author metrics Alexander Sellamén-Garzón of the publications indexed in Google Scholar whose objective is to provide an input for the strengthening of the capacities and potentialities of the authors of the Santo Tomás University in the positioning and visibility of their publicationshttp://unidadinvestigacion.usta.edu.c
Métricas de autor Alexander Cotte Poveda
No full textInforme de las métricas de autor del Dr. Alexander Cotte Poveda de las publicaciones indexadas en Google Académico cuyo objetivo es entregar un insumo para el fortalecimiento de las capacidades y potencialidades de los autores de la Universidad Santo Tomás en el posicionamiento y visibilidad de sus publicacionesReport of the author metrics Alexander Cotte Poveda of the publications indexed in Google Scholar whose objective is to provide an input for the strengthening of the capacities and potentialities of the authors of the Santo Tomás University in the positioning and visibility of their publications.http://unidadinvestigacion.usta.edu.c
Odoardo Fialetti (1573-c.1638): the interrelation of Venetian art and anatomy, and his importance in England
No full textBolognese artist Odoardo Fialetti (1573 – c.1638) is a fascinating figure upon which curiously little work has been done. Though he is a rarely discussed pupil of Tintoretto, Fialetti’s oeuvre is vast (some 55 known paintings and approximately 450 prints) and incredibly diverse. His work encompasses religious subjects, portraits, books on drawing and sport, maps, and illustration for treatises on city defences, literary texts, and anatomy. His work was influential for several hundred years after his death, not only in Venice and northern Italy, but also in France where his designs were used as decoration on faïence produced at Nevers, and England, where his paintings were much admired at court. Fialetti’s close association with Sir Henry Wotton, and the careful copy of his drawing book made by Alexander Browne in the mid-seventeenth century, attest to his impact on the formation of an Italianate sensibility in the appreciation of the visual arts in Early Modern England. In the realm of science, Fialetti’s influence can be deduced from his drawings of curiously animated cadavers in detailed landscapes to those of future generations of anatomists and illustrators throughout Europe. Because of the diverse associations and projects throughout his career, the study of Fialetti is inherently interdisciplinary, encompassing the history of art, history of science and history of the Venetian book trade, as well as crossing geographical boundaries in linking Venetian art and English tastes of the late renaissance and early baroque. Through examination of his extant oeuvre, as well as discussion of lost work, I aim to recognise Fialetti’s status as an artist responding to contemporary artistic debates (disegno versus colorito), a changing cultural climate and the burgeoning importance of the printed medium
Mesoscopic CH3NH3PbI3/TiO2 Heterojunction Solar Cells
No full textWe report for the first time on a hole conductor-free mesoscopic methylammonium lead iodide (CH3NH3PbI3) perovskite/TiO2 heterojunction solar cell, produced by deposition of perovskite nanoparticles from a solution of CH3NH3I and PbI2 in γ-butyrolactone on a 400 nm thick film of TiO2 (anatase) nanosheets exposing (001) facets. A gold film was evaporated on top of the CH3NH3PbI3 as a back contact. Importantly, the CH3NH3PbI3 nanoparticles assume here simultaneously the roles of both light harvester and hole conductor, rendering superfluous the use of an additional hole transporting material. The simple mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cell shows impressive photovoltaic performance, with short-circuit photocurrent Jsc= 16.1 mA/cm2, open-circuit photovoltage Voc = 0.631 V, and a fill factor FF = 0.57, corresponding to a light to electric power conversion efficiency (PCE) of 5.5% under standard AM 1.5 solar light of 1000 W/m2 intensity. At a lower light intensity of 100W/m2, a PCE of 7.3% was measured. The advent of such simple solution-processed mesoscopic heterojunction solar cells paves the way to realize low-cost, high-efficiency solar cells
Reusable e-learning development: Case studies, practices and issues of awareness for knowledge-based organisations
No full textReusable e-learning development (RED) is defined as the cloning, modification and customisation of existing files or source codes for developing another website or another web-based application. RED does not imply just copying and changing existing files or source codes but rather, it provides a practical technique for time-saving, improving efficiency and maximising utility of existing resources for creating another website or another web-based application. RED is particularly useful for a large-scale web development, where there is an extremely high degree of overlapping of information, resources and web designs. Therefore, RED has been widely adopted by many knowledge-based organisations (KBO). In order to investigate the impacts of RED on KBO, various case studies, practices and issues of awareness for KBO are presented and analysed. This paper particularly focuses on studies and recommended practices from the University of Cambridge. Results from these case studies reveal a number of outcomes
Cooling rates of neutron stars and the young neutron star in the Cassiopeia A supernova remnant
No full textWe explore the thermal state of the neutron star in the Cassiopeia A supernova remnant using the recent result of Ho & Heinke that the thermal radiation of this star is well described by a carbon atmosphere model and the emission comes from the entire stellar surface. Starting from neutron star cooling theory, we formulate a robust method to extract neutrino cooling rates of thermally relaxed stars at the neutrino cooling stage from observations of thermal surface radiation. We show how to compare these rates with the rates of standard candles – stars with non-superfluid nucleon cores cooling slowly via the modified Urca process. We find that the internal temperature of standard candles is a well-defined function of the stellar compactness parameter x=rg/R, irrespective of the equation of state of neutron star matter (R and rg are circumferential and gravitational radii, respectively). We demonstrate that the data on the Cassiopeia A neutron star can be explained in terms of three parameters: f?, the neutrino cooling efficiency with respect to the standard candle; the compactness x; and the amount of light elements in the heat-blanketing envelope. For an ordinary (iron) heat-blanketing envelope or a low-mass (? 10?13 M?) carbon envelope, we find the efficiency f?? 1 (standard cooling) for x? 0.5 and f?? 0.02 (slower cooling) for a maximum compactness x? 0.7. A heat blanket containing the maximum mass (?10?8 M?) of light elements increases f? by a factor of 50. We also examine the (unlikely) possibility that the star is still thermally non-relaxe
Wiping a blot in José María Blanco White’s bibliography: the true author of Vargas, a tale of Spain was Alexander Dallas
No full textLa novela histórica anónima Vargas, a tale of Spain, publicada en Londres en 1822, ha venido siendo atribuida de forma constante a José María Blanco White, e
incluso se ha traducido al castellano bajo su nombre en dos ocasiones. Las pruebas internas y externas de tal atribución nunca han sido concluyentes y este estudio crítico aporta un testimonio que prueba que el verdadero novelista fue Alexander R. C. Dallas, autor inglés hispanófilo de quien se traza un somero perfil.The anonymous historical novel Vargas, a tale of Spain, published in London in 1822, has been constantly attributed to Joseph Blanco White, and it even was translated twice into Spanish under his name. The internal and external evidences which support that attribution have been never conclusive. This critical paper presents a testimony
which finds out the novelist’s true identity: Alexander R. C. Dallas, an English and
Hispanophile author, whose profile is slightly sketched
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