Enhancing environmental educators' evaluation competencies: insights from an examination of the effectiveness of the My Environmental Education Evaluation Resource Assistant (MEERA) website

To conduct evaluations that can benefit individual programs as well as the field as a whole, environmental educators must have the necessary evaluation competencies. This exploratory study was conducted to determine to what extent a self‐directed learning resource entitled My Environmental Education Evaluation Resource Assistant (MEERA) can enhance environmental educators' evaluation competencies. The multiple case studies relied on data from eight environmental educators with limited evaluation experience who used MEERA to evaluate one of their programs. Results suggest that MEERA can (1) increase environmental educators' perceived evaluation competencies, (2) help environmental educators produce quality evaluation outputs, and (3) foster their use of evaluation results. Perceived benefits of using MEERA included obtaining evidence of program success, insights into how to improve programs, and alternative ways of thinking about programs. Perceived challenges included varying difficulties with evaluation tasks such as prioritizing evaluation questions and designing data collection instruments and, in line with this, desiring personal expert assistance for context‐specific advice and reassurance. This research contributes to expanding understanding of how to enhance environmental educators' evaluation competencies and practices.     

The effect of mindfulness on extinction and behavioral resurgence

In the present experiments, we investigated the effects of mindfulness on behavioral extinction and resurgence. Participants received instrumental training; either they received FI training (Experiment 1), or they were trained to emit high rates and low rates of response via exposure to a multiple VR yoked-VI schedule prior to exposure to a multiple FI FI schedule in order to alter their rates of responding learned during Experiment 2. Participants were then exposed to either a focused- (mindfulness) or an unfocused-attention induction task. All participants were finally exposed to an extinction schedule in order to determine whether a mindfulness induction task presented immediately prior to extinction training affected extinction (Experiment 1) and behavioral resurgence (Experiment 2). During the extinction phase, the rates of responding were higher in the control group than in the mindfulness group, indicating that the mindfulness group was more sensitive to the contingencies and, thus, their prior performance extinguished more readily (Experiment 1). Moreover, rates of response in the extinction components less precisely reflected previous training in the mindfulness group, suggesting less resurgence of past behaviors after the mindfulness induction (Experiment 2).     

Bionic mechanical design and 3D printing of novel porous Ti6Al4V implants for biomedical applications

Journal of Zhejiang University-SCIENCE B - In maxillofacial surgery, there is a significant need for the design and fabrication of porous scaffolds with customizable bionic structures and...     

Intergenerational exchange: undergraduate researchers’ learning and listening enhanced through older adults’ entertainment preferences

The purpose of this qualitative study was to provide an intergenerational exchange as undergraduate students taking an introductory Psychology of Aging course, interviewed and watched films with older adult participants (N = 13) residing in an assisted living community. The undergraduate researchers (N = 10) conducted and transcribed interviews, wrote about their perceptions of interviews and film viewing with older adults, and their instructor interviewed assisted living staff (N = 2) creating an assessment of participants, researchers, and staff. Researchers listened and learned from older adult’s words, thereby improving researchers’ understanding that older adults preferred in-person discussions over film viewing. Researchers learned from older adults’ words, as they began to understand that sexual content in today’s films may reduce entertainment viewing for youth and older adults. Older adults described television remotes and phones with frustration and researchers felt angst for their frustration. Findings suggested understanding and meaning for participants and researchers in this service learning intergenerational exchange generated through undergraduate research.     

A finite element analysis of the stress distribution to the mandible from impact forces with various orientations of third molars

Objective

To investigate the stress distribution to the mandible, with and without impacted third molars (IM3s) at various orientations, resulting from a 2000-Newton impact force either from the anterior midline or from the body of the mandible.

Materials and methods

A 3D mandibular virtual model from a healthy dentate patient was created and the mechanical properties of the mandible were categorized to 9 levels based on the Hounsfield unit measured from computed tomography (CT) images. Von Mises stress distributions to the mandibular angle and condylar areas from static impact forces (Load I-front blow and Load II left blow) were evaluated using finite element analysis (FEA). Six groups with IM3 were included: full horizontal bony, full vertical bony, full 450 mesioangular bony, partial horizontal bony, partial vertical, and partial 450 mesioangular bony impaction, and a baseline group with no third molars.

Results

Von Mises stresses in the condyle and angle areas were higher for partially than for fully impacted third molars under both loading conditions, with partial horizontal IM3 showing the highest fracture risk. Stresses were higher on the contralateral than on the ipsilateral side. Under Load II, the angle area had the highest stress for various orientations of IM3s. The condylar region had the highest stress when IM3s were absent.

Conclusions

High-impact forces are more likely to cause condylar rather than angular fracture when IM3s are missing. The risk of mandibular fracture is higher for partially than fully impacted third molars, with the angulation of impaction having little effect on facture risk.

     

Motivation and learning physics

Being involved in science education we cannot avoid confronting the problem of students' waning interest in physics. Therefore, we want to focus on arguments developed by new theoretical work in the field of motivation. Especially, we are attracted by the theory of motivation featured by Deci and Ryan, because it is related to an assumptions of human development similar to our own approach. Beneath elements of cognitive development, motivation is seen as a basic concept to describe students' learning in a physics classroom. German students at lower and upper secondary level regard physics as very difficult to learn, very abstract and dominated by male students. As a result physics at school continuously loses importance and acceptance although a lot of work has been done to modernise and develop the related physics courses. We assume that knowing about the influence of motivation on learning physics may lead to new insights in the design of classroom settings. Referring to Deci and Ryan, we use a model of motivation to describe the influence of two different teaching strategies (teacher and discourse oriented) on learning. Electrostatics was taught in year 8. The outcomes of a questionnaire which is able to evaluate defined, motivational states are compared with the interpretation of the same student's interaction in the related situation of the physics classroom. The scales of the questionnaire and the categories of analysis of the video-recording are derived from the same model of motivation.     

Learning in an Honors Program

Abstract. This article describes a program of demanding courses offered in an academic community to nontraditional and at-risk, first- and second-year students at a research university. The delivery of instruction uses multiple pedagogies, including collaborative learning and labs where students work together under the guidance of undergraduate assistants. A research study showed that students in the program perform better than traditional students in equivalent courses. In addition, this study provides strong evidence that when students of the program take the same subsequent classes offered to the general university population, their success rates match or exceed those of their traditional classmates.     

Utilizing mythic criticism in contemporary narrative culture: Examining the “present‐absence” of shadow archetypes in spider‐man

This paper conducts a reading of the popular film Spider‐Man by examining the use of shadow archetypes in the portrayal of the Green Goblin. The Gram Goblin character provides a complex representation of villainy in a modem popular narrative. Utilizing cultural definitions of shadow in mythology, this paper discerns that the Goblin incorporates two traditional portals of access to the shadow, the mirror and the mask. These two symbols allow the audience access to the shadow, but at the same time allow the shadow to remain elusive. Ultimately, I argue for the use of polysemic analysis, particularly hermeneutic depth, in mythological criticism. By positioning mythic criticism as a way of understanding polysemy in contemporary narrative, we are able to ascertain patterns of mythic context rather than mythological retellings in narratives.