1,071 research outputs found

    Making Scholarly Activity Available to the Masses: The Scaffolding of Scholarship Throughout the Undergraduate Curriculum

    Get PDF
    Florida Gulf Coast University’s Quality Enhancement Plan (QEP) focuses on improving student critical thinking, information literacy, and written communication. Rather than developing these skills through traditional methods (e.g., through senior-level, independent research), these learning outcomes are practiced through scholarly experiences. Traditional undergraduate scholarship manifests itself through terminal, senior capstone or research experiences. These, because of the economy of scale, typically reach a minority of students, often just honors students or those approached by faculty mentors. At FGCU, however, scholarly experiences are a part of the curriculum throughout the program of study, and scaffolded to build greater depth and sophistication. Presented here are examples from both a program in STEM (Marine Science) and the humanities (Music Performance). Students in Marine Science receive their first exposure to the vetting of literature and expository scientific writing within their general education science courses. Students are presented with an exercise to evaluate the credibility of web-based literature using the CRAAP test. A semester-long writing assignment has them investigate an earth-process-related problem that has societal consequences. They review and evaluate the secondary literature, prepare a first draft that is critiqued, and then submit a final version while meeting a number of milestones along the way. Students enter the major’s curriculum through a course entitled “Scientific Process”, which introduces them to all aspects of scientific research and culminates with them writing and defending a research proposal they may eventually work to completion. Numerous courses at the upper-class level are designed as scholarly focused or enriched, a branding requiring that certain criteria are met. In these courses, students often participate in genuine collaborative research projects that can lead to student publication and enhance faculty productivity. Finally, as a senior, the capstone course requires that they produce a scholarly poster or oral presentation that is either given in the class or within a university forum. Music Performance students’ experiences track towards demonstration of content mastery in the artifact of a senior recital. In this public display of scholarly achievement a student presents repertoire from major historical eras on his or her instrument or voice for an hour or more. Additionally the students complete a comprehensive document analyzing music in terms of performance practice (how and why certain music should be performed to meet historically appropriate creations and recreations). Students enter this major their freshman year after an audition process and immediately begin developing the skills required to demonstrate proficiency as professional musicians. Experiences performing in ensembles and in private lessons cultivate listening skills to make informed musical judgments. Theory courses develop students’ abilities to hear music with their eyes. Upper level courses require students to clearly articulate in writing their thoughts about music’s formal properties, why certain music requires particular performance considerations, and how to execute those performance requirements in their technique. The conundrum for collection of data is how to assess university-wide learning outcomes in the context of a performance. Without a tangible artifact, FGCU relies on artist teams to develop assessment procedures that accurately capture if students meet targets as demonstrated in performance. Though too early for us to have extensive assessment data, anecdotal evidence suggests students enjoy this approach and are honing their skills within these learning outcomes. We anticipate these improvements will increase graduates’ life-long learning potential, as well as their competitiveness for employment and further education

    Few-Shot Single-View 3-D Object Reconstruction with Compositional Priors

    Full text link
    The impressive performance of deep convolutional neural networks in single-view 3D reconstruction suggests that these models perform non-trivial reasoning about the 3D structure of the output space. However, recent work has challenged this belief, showing that complex encoder-decoder architectures perform similarly to nearest-neighbor baselines or simple linear decoder models that exploit large amounts of per category data in standard benchmarks. On the other hand settings where 3D shape must be inferred for new categories with few examples are more natural and require models that generalize about shapes. In this work we demonstrate experimentally that naive baselines do not apply when the goal is to learn to reconstruct novel objects using very few examples, and that in a \emph{few-shot} learning setting, the network must learn concepts that can be applied to new categories, avoiding rote memorization. To address deficiencies in existing approaches to this problem, we propose three approaches that efficiently integrate a class prior into a 3D reconstruction model, allowing to account for intra-class variability and imposing an implicit compositional structure that the model should learn. Experiments on the popular ShapeNet database demonstrate that our method significantly outperform existing baselines on this task in the few-shot setting

    Trophic effects of sponge feeding within Lake Baikal\u27s littoral zone .2. Sponge abundance, diet, feeding efficiency, and carbon flux

    Get PDF
    Endemic freshwater demosponges in the littoral zone of Lake Baikal, Russia, dominate the benthic biomass, covering 44% of the benthos. We measured in situ sponge abundance and,orating and calculated sponge-mediated Fluxes of picoplankton (plankton \u3c2 mu m) for two common species, Baikalospongia intermedia and Baikalospongia bacillifera. By means of dual-beam how cytometry, we found retention efficiencies ranging from 58 to 99% for four types of picoplankton: heterotrophic bacteria, Synechococcus-type cyanobacteria, autotrophic picoplankton with one chloroplast, and autotrophic picoplankton with two chloroplasts. By using a general model for organism-mediated fluxes, we conservatively estimate that through active suspension feeding, sponges are a sink for 1.97 g C d(-1) m(-1), mostly from procaryotic cell types. Furthermore, grazing by these extensive sponge communities can create a layer of picoplankton-depleted water overlying the benthic community in this unique lake

    Single-row vs. double-row arthroscopic rotator cuff repair: clinical and 3 Tesla MR arthrography results.

    Get PDF
    Background Arthroscopic rotator cuff repair has become popular in the last few years because it avoids large skin incisions and deltoid detachment and dysfunction. Earlier arthroscopic single-row (SR) repair methods achieved only partial restoration of the original footprint of the tendons of the rotator cuff, while double-row (DR) repair methods presented many biomechanical advantages and higher rates of tendon-to-bone healing. However, DR repair failed to demonstrate better clinical results than SR repair in clinical trials. MR imaging at 3 Tesla, especially with intra-articular contrast medium (MRA), showed a better diagnostic performance than 1.5 Tesla in the musculoskeletal setting. The objective of this study was to retrospectively evaluate the clinical and 3 Tesla MRA results in two groups of patients operated on for a medium-sized full-thickness rotator cuff tear with two different techniques. Methods The first group consisted of 20 patients operated on with the SR technique; the second group consisted of 20 patients operated on with the DR technique. All patients were evaluated at a minimum of 3 years after surgery. The primary end point was the re-tear rate at 3 Tesla MRA. The secondary end points were the Constant-Murley Scale (CMS), the Simple Shoulder Test (SST) scores, surgical time and implant expense. Results The mean follow-up was 40 months in the SR group and 38.9 months in the DR group. The mean postoperative CMS was 70 in the SR group and 68 in the DR group. The mean SST score was 9.4 in the SR group and 10.1 in the DR group. The re-tear rate was 60% in the SR group and 25% in the DR group. Leakage of the contrast medium was observed in all patients. Conclusions To the best of our knowledge, this is the first report on 3 Tesla MRA in the evaluation of two different techniques of rotator cuff repair. DR repair resulted in a statistically significant lower re-tear rate, with longer surgical time and higher implant expense, despite no difference in clinical outcomes. We think that leakage of the contrast medium is due to an incomplete tendon-to-bone sealing, which is not a re-tear. This phenomenon could have important medicolegal implications. Level of evidence III. Treatment study: Case–control study

    A Hybrid Global Minimization Scheme for Accurate Source Localization in Sensor Networks

    Get PDF
    We consider the localization problem of multiple wideband sources in a multi-path environment by coherently taking into account the attenuation characteristics and the time delays in the reception of the signal. Our proposed method leaves the space for unavailability of an accurate signal attenuation model in the environment by considering the model as an unknown function with reasonable prior assumptions about its functional space. Such approach is capable of enhancing the localization performance compared to only utilizing the signal attenuation information or the time delays. In this paper, the localization problem is modeled as a cost function in terms of the source locations, attenuation model parameters and the multi-path parameters. To globally perform the minimization, we propose a hybrid algorithm combining the differential evolution algorithm with the Levenberg-Marquardt algorithm. Besides the proposed combination of optimization schemes, supporting the technical details such as closed forms of cost function sensitivity matrices are provided. Finally, the validity of the proposed method is examined in several localization scenarios, taking into account the noise in the environment, the multi-path phenomenon and considering the sensors not being synchronized
    • …
    corecore