Changes in coordination and its variability with an increase in running cadence

Alterations in joint mechanics have been associated with common overuse injuries. An increase in running cadence in healthy runners has been shown to improve several parameters that have been tied to injury, but the reorganisation of motion that produces these changes has not been examined. The purpose of this study was to determine if runners change their segment coordination and coordination variability with an acute increase in cadence. Data were collected as ten uninjured runners ran overground at their preferred cadence as well as a cadence 10% higher than preferred. Segment coordination and coordination variability were calculated for select thigh–shank and shank–foot couples and selected knee mechanics were also calculated. Paired t-tests were used to examine differences between the preferred and increased cadence conditions. With increased cadence, there was a decrease in peak knee flexion and a later occurrence of peak knee flexion and internal rotation and shank internal rotation. Segment coordination was altered with most changes occurring in mid-late stance. Coordination variability decreased with an increase in cadence across all couples and phases of gait. These results suggest examination of coordination and its variability could give insight into the risk of intervention-induced injury.     

The Rosarium Project: A case of merging traditional reference librarian skills with digital humanities technology

ABSTRACT

The role of the reference librarian has changed considerably over the past thirty years. Today reference librarians spend as much time on public relations as on answering reference questions and more time solving log-in issues than on helping with research. Despite this, there is still a role for reference librarians to play using their research and curation skills. That role involves the digital humanities, particularly text encoding projects following the guidelines of the Text Encoding Initiative Consortium (TEI). One such TEI project is the Rosarium Project, which curates online popular materials about roses.     

Letter knowledge precipitates phoneme segmentation,but not phoneme invariance

There is a wealth of evidence linking letter knowledge and phoneme awareness, but there is little research examining the nature of this relationship. This article aims to elucidate this relationship by considering the links between letter knowledge and two sub‐skills of phoneme awareness: phoneme segmentation and phoneme invariance. Two studies are reported. The first study consisted of an eight‐month longitudinal study with 56 pre‐literate children. No child within this group was successful on any phoneme awareness task unless they knew at least one letter. Letter knowledge was also a significant predictor of later phoneme completion and deletion. The hypothesis that letter knowledge is an important precursor for phoneme awareness was then investigated in a small‐scale intervention study with ten children. These children were taught letters and their phoneme awareness was monitored. It was found that letter knowledge was specifically related to the development of phoneme segmentation in pre‐literate children. Possible reasons for this finding are discussed.     

Child Care Subsidy and Quality

This study compared the quality of child care programs serving children receiving government subsidies to those not serving such children. Thirty-four classrooms in full day programs serving preschool aged children (19 subsidized, 15 unsubsidized) were observed using the Early Childhood Environment Rating Scales-Revised (ECERS-R). (1) Research Findings: One way ANOVA indicated that programs not serving children receiving subsidies were rated higher on overall quality, language and reasoning, learning activities, and social interactions. Teacher salary was significantly correlated with overall quality, and after controlling for teacher salary, subsidy density did not uniquely predict variance in overall quality. (2) Policy Implications: Overall low quality indicates a need for a quality improvement initiative using proven methods. Minimum guidelines for quality beyond state licensing standards should be used to ensure that children in subsidized programs are receiving adequate care and to oversee state and federal investments in early childhood education.     

Sozialverhalten und Schulleistungen

Prior research indicates that social behavior contributes to school achievement. The underlying mechanisms, however, have received little research attention to date. To investigate peer acceptance as mediating the influences of prosocial and antisocial behavior on school grades, this prospective study draws on 2387 ninth graders. All students in a class rated their peers in terms of prosocial and antisocial behavior, class teachers rated their students’ peer acceptance in class, and grades in German and mathematics were collected from students’ report cards. Prior report card grades, gender and socioeconomic status were controlled for. Structural equation modeling shows direct positive paths between prosocial behavior and both peer acceptance and grades; antisocial behavior negatively predicted both peer acceptance and grades. Prosocial behavior contributed to better grades via higher peer acceptance, whereas concerning antisocial behavior, the mediating effect was statistically not significant. Results are discussed with regard to their practical relevance and implications for future research.     

“Math Is What I Love. I Think If I Got Anything from Community College,It’s the Beauty of Math.”: Promoting Mathematics Teacher Education Through Community College Outreach

Deficient publicity challenged participants when selecting community college for postsecondary education and identifying secondary mathematics teaching as a career. Secondary mathematics teaching career promotion by the community college out in the local community and on the community college campuses was found to be nonexistent but necessary to increase the teacher-of-color pool. The purpose of this case study was to understand the role community colleges played in preparing current Washington State secondary mathematics teachers of color. Teachers-of-color voices were evaluated through Critical Race Theory, and recommendations were developed to support and counter identified oppressive structures: A future secondary mathematics teacher community outreach club would engage the community by (a) developing partnerships with local K–12 schools to increase teaching career exploration, (b) exploring feasibility of Math in the Community, and (c) promoting the community college as A College FOR the Community with outreach mathematics application courses taught in nonschool-based community venues.     

“I Have a Hippopotamus!”: Preparing Effective Early Childhood Environmental Educators

ABSTRACT

This article describes an early childhood teacher-preparation program that infuses environmental education and nature experiences into courses, practicum, and student-teaching experiences. Program philosophy, pedagogy, materials, and methods are described and linked to the Early Childhood Environmental Education Programs: Guidelines for Excellence, the Guidelines for the Preparation and Professional Development of Environmental Educators, and state-level early learning guidelines that focus on connecting young children with nature. Preservice teachers build knowledge, skills, and dispositions for effective environmental education beginning from an awareness level and progressing to application and refinement. The value of nature is communicated explicitly and implicitly throughout the program. Preliminary analysis of student outcomes indicated that, over the course of the program, students’ ratings of the importance of nature and science experiences and outcomes increased, along with their confidence implementing environmental-education activities.     

Is drawing after learning effective for metacognitive monitoring only when supported by spatial scaffolds?

Instructional Science - In this study, we investigated whether drawing after learning supports metacognitive monitoring especially when students are supported in their drawing efforts. Therefore,...