Search results for " Overview"
showing 10 items of 155 documents
Determining your own grade – Student perceptions on self-assessment in a large mathematics course
2018
International audience; In our poster, we report on students' perceptions on self-assessment in large undergraduate course context taught with the DISA model (Digital Self-Assessment) in which the final exam is replaced by self-assessment. The students found that practising self-assessment skills was valuable and encouraged them to study for themselves. At the same time, self-assessment was considered unfamiliar and therefore difficult. We argue that the DISA model encouraged students to take more responsibility on their own learning.
The genus Ruppia L. (Ruppiaceae) in the Mediterranean region: An overview
2015
Abstract This paper reviews the current knowledge on the diversity, distribution and ecology of the genus Ruppia L. in the Mediterranean region. The genus Ruppia, a cosmopolitan aquatic plant complex, is generally restricted to shallow waters such as coastal lagoons and brackish habitats characterized by fine sediments and high salinity fluctuations. In these habitats Ruppia meadows play an important structural and functional role. Molecular analyses revealed the presence of 16 haplotypes in the Mediterranean region, one corresponding to Ruppia maritima L., and the others to various morphological forms of Ruppia cirrhosa (Petagna) Grande, all together referred to as the “R. cirrhosa s.l. co…
Glioblastoma: development of new diagnostic tools based on EV-associated proteins
2021
Glioblastomas multiforme (GBM) are the most common malignant primary brain tumors in adults. They are highly aggressive and have an overall survival of <15 months despite maximal surgical resection and chemoradiation (Ostrom, 2019). GBMs are typically heterogeneous with a wide range of genetic and epigenetic variations among tumor cells. Extracellular vesicles (EVs) represent one of the plausible ways through which can be obtained a better understanding of the heterogeneous subpopulations of GBM / molecular signatures. EVs hold promise for the discovery of potential tumours biomarkers useful in clinical managment for GBM patient diagnosis and follow-up. Isolating EVs from body fluids and sc…
Trademarks recognition based on local regions similarities
2010
This paper deals with content based image retrieval. We propose a logo recognition algorithm based on local regions, where the trademark (or logo) image is segmented by the clustering of points of interest obtained by Harris corners detector. The minimum rectangle surrounding each cluster is detected forming the regions of interest. Global features such as Hu moments and histograms of each local region are combined to find similar logos in the database. Similarity is measured based on the integrated minimum average distance of the individual components. The results obtained demonstrate tolerance to logos distortions such as rotation, occlusion and noise.
Coherent states: a contemporary panorama
2012
Coherent states (CS) of the harmonic oscillator (also called canonical CS) were introduced in 1926 by Schr?dinger in answer to a remark by Lorentz on the classical interpretation of the wave function. They were rediscovered in the early 1960s, first (somewhat implicitly) by Klauder in the context of a novel representation of quantum states, then by Glauber and Sudarshan for the description of coherence in lasers. Since then, CS have grown into an extremely rich domain that pervades almost every corner of physics and have also led to the development of several flourishing topics in mathematics. Along the way, a number of review articles have appeared in the literature, devoted to CS, notably…
Exploration of new post-secondary mathematics teachers' experiences: preliminary results of a narrative inquiry
2018
International audience; This paper reports on a pilot study that has taken place during the winter semester of 2017, for a larger project whose goal is to understand the process of becoming a mathematics teacher at post-secondary level. With very few information from the literature on this process at this specific level, this pilot study acts as an exploration of the issues and reality the new teachers face. To do so, we conducted a narrative inquiry with three new post-secondary mathematics teachers who were interviewed on a regular basis during a semester. Those interviews provided an insight into the new teachers' experiences by pointing out themes that are relevant to them. We also came…
Tasks for enriching the understanding of the concept of linear span
2018
International audience; The concept of linear span is one of the first abstract notions that students encounter in a course on Linear Algebra. Using the theoretical construct of concept image and concept definition (Tall & Vinner, 1981) along with observations about teaching and learning Linear Algebra, we present two tasks designed to enrich students' concept image regarding linear span. These tasks could be included in a problem workshop of an introductory university course on Linear Algebra. Each task is carefully created and/or selected so as to foster the ground for potential conflict factors to arise and be confronted. A preliminary evaluation shows that the tasks are well received by…
Seminar groups as part of first-semester mathematics teaching: What did the students learn?
2018
International audience; In this study, the learning encouraged by teaching activities in a small-group setting was investigated through the analysis of students' responses to survey and interview questions. The results indicate that the students perceived an increased ability to communicate mathematics in written form, but to a lesser extent developed their ability to discuss mathematics and build conceptual understanding.
Bridging probability and calculus: the case of continuous distributions and integrals at the secondary-tertiary transition
2018
International audience; This paper focuses on two mathematical topics, namely continuous probability distributions (CPD) and integral calculus (IC). These two sectors that are linked by the formula P(a<=X<=b)=int_a^b f(x)dx are quite compartmented in teaching classes in France. The main objective is to study whether French students can mobilize the sector of IC to solve tasks in CPD and vice versa at the transition from high school to higher education. Applying the theoretical framework of the Anthropological Theory of the Didactic (ATD), we describe a reference epistemological model (REM) and use it to elaborate a questionnaire in order to test the capacity of students to bridge CPD and IC…
Weekly homework quizzes as formative assessment for Engineering students are a fair and effective strategy to increase learning?
2018
International audience; A strategy to apply online weekly homework quizzes as formative assessment for Engineering students was designed and tested in order to study if it increases student's learning. The strategy was to make optional weekly online quizzes not randomly generated that students may retry over and over again until to reach the correct answer, they contribute to 10% of grade but only if students get 45% or more in traditional assessment.The quizzes were applied to two different mathematics courses (Single and Multivariable Calculus) of two different Engineering degrees, each one to around 100 students and during a semester. Student's adherence was very high, nearly all student…