Schooling as a positional good: the Brazilian metropolitan regions in recent decades

In this article, I aim to determine whether, in view of the trend of educational expansion in recent decades in Brazil, the role played by schooling in the labor market of Brazilian major metropolitan regions has changed, becoming positional rather than absolute. To this end, I analyze the influence of schooling on people’s income and occupational status. Based on data from the National Household Sample Survey (PNAD-IBGE) for years 1995, 2005 and 2015, I compare ordinary least squares models that use absolute and positional measures of schooling. The results show that the explanatory power is greater for positional measures than for absolute ones, and that this advantage has increased over recent decades. As a result, it is argued that although educational expansion possibly makes the chances of access to a certain absolute schooling level less unequal, it also ends up undermining the opportunity structure related to it.     

THE EIGHTEEN‐MONTH EXPERIENCE OF THE NATIONAL EVALUATION COMMITTEE IN FRANCE

This article describes the origins of and the rationale for the creation of the French National Evaluation Committee, the niche which it fills within the context of French higher education, its make‐up, details of its first year of activity, its typical procedures for the evaluation of. a given institution and, in general terms, its evaluation criteria. An annex lists the current members of the Committee, the President of which is Laurent Schwartz, a member of the French Academy of Sciences.

     

Cost‐effective teaching of radiology with preclinical anatomy

Graduating physicians in all subspecialties have an increased need for competency in radiology, particularly since the use of diagnostic imaging continues to grow. To integrate the teaching of radiology with anatomy during the first year of medical school at Howard University, a novel approach was developed to overcome the limitations of resources including funding, faculty, and curricular time. The resulting program relies on self‐study and peer‐to‐peer interactions to develop proficiency at manipulating free versions of medical image viewer software (using the DICOM standard), identifying normal anatomy in medical images, and applying critical thinking skills to understand common clinical conditions. An effective collaborative relationship between a radiologist and anatomist was necessary to develop and implement the program of anatomic–radiographic instruction which consists of five tiers: (1) initial exposure to anatomy through dissection which provides a foundation of knowledge; (2) study of annotated radiographs from atlases; (3) a radiology quiz open to group discussions; (4) small group study of clinical cases with diagnostic images; and (5) radiographic tests. Students took all quizzes and tests by working from image datasets preloaded on their personal computers, mimicking the approach by which radiologists analyze medical images. In addition to stimulating student support of a new teaching initiative, the strengths of Howard's program are that it can be introduced into an existing preclinical curriculum in almost any medical school with minimal disruption, it requires few additional resources to implement and run, and its design is consistent with the principles of modern education theory. Anat Sci Educ 11: 196–206. © 2017 American Association of Anatomists.     

Pavlovian appetitive discriminative conditioning inAplysia californica

Three experiments demonstrated Pavlovian appetitive discrimination learning in the marine mollusc,Aplysia californica. In each experiment, subjects were exposed to two conditioned stimuli; one stimulus (CS+) was paired with food presentations and the other stimulus (CS?) was never followed by food. In Experiments 1 and 3 different chemosensory stimuli were used, and in Experiment 2 different tactile stimuli were used. For both types of conditioned stimuli, bite responses occurred significantly more often to the CS+ than to the CS?. Experiment 2 also showed thatAplysia could learn a reversal of this discrimination. Experiment 3 showed that nonreinforced presentations of CS+ resulted in a decline in the frequency of conditioned biting. The implications of these results for neurobiological analyses of learning are discussed.     

An On-Demand and Cloud-Based Digital Scholarship Applications Dashboard

Building on the findings of a 2013 NEH Digital Humanities Start-Up funded project, in early 2016 we began working on an IMLS Sparks! funded project: Digital Scholarship Applications Dashboard. The project is a collaborative initiative between University IT and the Library's Center for Digital Scholarship. We are currently evaluating an efficient and user-friendly dashboard solution that will allow faculty and student to easily choose, configure, deploy, and evaluate any of a set of common web applications in a shared and virtual hosting environment. The service is similar to those offered by commercial hosting providers for deployment of popular web applications, but our Scholars Dashboard service will focus on tools more relevant to digital scholarship and digital humanities. The prototype leverages OpenNebula, an open source cloud-computing platform for managing distributed data center environments, and Amazon Web Services for deploying virtual machines. In this article, we will describe the work we have done in the last year and further discuss the role of digital scholarship teams within academic libraries in providing cloud-based infrastructure for digital scholarship and research.     

The Effect of a Prior Dissection Simulation on Middle School Students' Dissection Performance and Understanding of the Anatomy and Morphology of the Frog

Science teachers, school administrators, educators, and the scientific community are faced with ethical controversies over animal dissection in classrooms. Simulation has been proposed as a way of dealing with this issue. One intriguing previous finding was that use of an interactive videodisc dissection facilitated performance on a subsequent actual dissection. This study examined the prior use of simulation of frog dissection in improving students' actual dissection performance and learning of frog anatomy and morphology. There were three experimental conditions: simulation before dissection (SBD); dissection before simulation (DBS); or dissection-only (DO). Results of the study indicated that students receiving SBD performed significantly better than students receiving DBS or DO on both actual dissection and knowledge of the anatomy and morphology. Students' attitudes toward the use of animals for dissection did not change significantly from pretest to posttest and did not interact with treatment. The genders did not differ in achievement, but males were more favorable towards dissection and computers than were females.     

Using computer simulations to enhance conceptual change: The roles of constructivist instruction and student epistemological beliefs

Learners enter the classroom with informal ideas (alternative conceptions) about scientific phenomena; these ideas affect how the corresponding scientific explanations are learned. In addition, studentsÕ epistemological beliefs concerning learning influence achievement. This study investigated the effects of a constructivist versus objectivist learning environment on college studentsÕ conceptual change, using a computer simulation of the human cardiovascular system as an instructional tool. This study also investigated the interaction between constructivist versus objectivist learning situations and the studentsÕ epistemological beliefs. The constructivist approach resulted in significantly greater conceptual change than the objectivist approach for 2 of 6 commonly held alternative conceptions; the other 4 of 6 areas showed no significant differences for treatment group. More important, however, the treatment interacted significantly with epistemological beliefs. Individuals with more advanced epistemological beliefs learned more with a constructivist treatment; individuals with less developmentally advanced beliefs learned more with an objectivist treatment. © 1998 John Wiley & Sons, Inc. J Res Sci Teach 35: 145–160, 1998.