The use of computer-based assessments in a field biology module

Formative computer-based assessments (CBAs) for self-instruction were introduced into a Year-2 field biology module. These CBAs were provided in ‘tutorial’ mode where each question had context-related diagnostic feedback and tutorial pages, and a self-test mode where the same CBA returned only a score. The summative assessments remained unchanged and consisted of an unseen CBA and written reports of field investigations. When compared with the previous three year-cohorts, the mean score for the summative CBA increased after the introduction of formative CBAs, whereas mean scores for written reports did not change. It is suggested that the increase in summative CBA mean score reflects the effectiveness of the formative CBAs in widening the students’ knowledge base. Evaluation of all assessments using an Assessment Experience Questionnaire indicated that they satisfied the ‘11 conditions under which assessment supports student learning’. Additionally, evidence is presented that the formative CBAs enhanced self-regulated student learning

Fully Committed Poster

Providence College Department of Theatre, Dance & Film Bowab Studio Theatre Independent Student Production Fully Committed November 14th & 15: 8pm November 16th: 2pm Written by Becky Mode Directed by Tanner Henryhttps://digitalcommons.providence.edu/fully_committed_pubs/1001/thumbnail.jp

Lateral groove geometry for planar UV written evanescent devices - new flexibility new devices

Conventional evanescent optical devices have made use of etched windows to allow access of an optical field to a material of interest. Such devices are a route to accurate refractive index sensors and to realising modulators, however, the geometry of etching the cladding to give the fluid access to a pre-defined core waveguide mode is limiting. In this work, we present an alternative approach in which a groove is cut using a polishing saw blade to give a vertical, high optical quality trench. Optical waveguides are then UV written to allow evanescent lateral access of the mode to a fluid placed in the trench. This seemingly subtle change in geometry provides greatly increased flexibility to tailor the interaction between the optical mode and the surrounding material, by, for example, changing the mode size and the allowing couplers or tapers to be used

Mid-infrared spectral broadening in an ultrafast laser inscribed gallium lanthanum sulphide waveguide

We report the successful fabrication of mid-infrared waveguides written in a gallium lanthanum sulphide (GLS) substrate via the ultrafast laser inscription technique. Single mode guiding at 2485 nm and 3850 nm is observed. Spectral broadening spanning 1500 nm (-15dB points) is demonstrated under 3850 nm excitation. (C)2012 Optical Society of America</p

Mansfield, France and childhood

Mansfield’s ambivalent love affair with France, which flowered after 1912, also saw her tackling her great theme of childhood as she moved away from the style of the raw, outback New Zealand stories written in 1912/13 into a more impressionistic mode. Her recreation of her early life through the figure of Kezia in the first draft of ‘The Aloe’, written in Paris (March to May 1915), has its origin in stories published in Rhythm (October 1912): ‘New Dresses’, ‘Elena’, and ‘The Little Girl’; but interestingly this semi-biographical point of departure is contextualized by stories written around the same time in which childhood is represented as a state that overlaps and is even confused with puberty, adolescence, adulthood, as in ‘Something Childish But Very Natural’, her first story written in France (Paris, December 1913), and ‘The Little Governess’ (Paris, May 1915). This paper examines these transitions in her work to argue that Mansfield explored liminal states in her characters, who combine elements of childhood, youth, and maturity, so dramatising her own psychological criss-crossing between these phases in her recreation of the family drama of ‘The Aloe

Thermally-Reconfigurable Quantum Photonic Circuits at Telecom Wavelength by Femtosecond Laser Micromachining

The importance of integrated quantum photonics in the telecom band resides on the possibility of interfacing with the optical network infrastructure developed for classical communications. In this framework, femtosecond laser written integrated photonic circuits, already assessed for quantum information experiments in the 800 nm wavelength range, have great potentials. In fact these circuits, written in glass, can be perfectly mode-matched at telecom wavelength to the in/out coupling fibers, which is a key requirement for a low-loss processing node in future quantum optical networks. In addition, for several applications quantum photonic devices will also need to be dynamically reconfigurable. Here we experimentally demonstrate the high performance of femtosecond laser written photonic circuits for quantum experiments in the telecom band and we show the use of thermal shifters, also fabricated by the same femtosecond laser, to accurately tune them. State-of-the-art manipulation of single and two-photon states is demonstrated, with fringe visibilities greater than 95%. This opens the way to the realization of reconfigurable quantum photonic circuits on this technological platform

Design Spectrum Analysis in NASTRAN

The utility of Design Spectrum Analysis is to give a mode by mode characterization of the behavior of a design under a given loading. The theory of design spectrum is discussed after operations are explained. User instructions are taken up here in three parts: Transient Preface, Maximum Envelope Spectrum, and RMS Average Spectrum followed by a Summary Table. A single DMAP ALTER packet will provide for all parts of the design spectrum operations. The starting point for getting a modal break-down of the response to acceleration loading is the Modal Transient rigid format. After eigenvalue extraction, modal vectors need to be isolated in the full set of physical coordinates (P-sized as opposed to the D-sized vectors in RF 12). After integration for transient response the results are scanned over the solution time interval for the peak values and for the times that they occur. A module called SCAN was written to do this job, that organizes these maxima into a diagonal output matrix. The maximum amplifier in each mode is applied to the eigenvector of each mode which then reveals the maximum displacements, stresses, forces and boundary reactions that the structure will experience for a load history, mode by mode. The standard NASTRAN output processors have been modified for this task. It is required that modes be normalized to mass