The validity of estimating triceps brachii volume from single MRI cross-sectional area before and after resistance training

The aim of this study was to determine whether triceps brachii muscle volume can be adequately estimated from a single anatomical cross-sectional area (ACSA) and can the same model be used for prediction after training. Thirty-five healthy male non-athletes (age 21.6 ± 2.5 years, body mass index 24.8 ± 3.5 kg · m(-2)) volunteered for this study. The volumes of the upper arm extensors were calculated from magnetic resonance imaging (MRI) sequence scans and regression models were developed, which were used to predict muscle volumes from single MRI cross-sectional scans taken at different points along the humerus length. The same procedure was repeated after 12 weeks of maximal resistance training of the elbow extensors. Correlation coefficients were calculated for Model A with CSA(max), humerus length (HL), and body mass index (r = 0.919), a model with CSA(50%) and HL (r = 0.922), and a model with CSA(60%) and HL (r = 0.920) (P < 0.001). The standard error of estimate for Model A, Model CSA(50%), and Model CSA(60%) was 8.0%, 7.7%, and 7.8% respectively. Thesame prediction formula can be used for the left arm (r = 0.904). If a single ACSA is used for triceps brachii volume prediction, the best fit is with Model CSA(60%) and HL, both before and after training (r = 0.941). By introducing humerus length into the calculation, we simplify the procedure for volume measurement, since it can be obtained during MRI scanning.     

Elucidating usage of e-government learning: A perspective of the extended technology acceptance model

Learning is critical to both economic prosperity and social cohesion. E-government learning, which refers to the government's use of web-based technologies to facilitate learning about subjects that are useful to citizens, is relatively new, relevant, and potentially cost-effective. This work proposes and verifies that the technology acceptance model (TAM) can explain and predict usage of e-government learning. The TAM examines how perceived ease of use and perceived usefulness and their antecedents influence intention and usage of a system. This study identifies antecedents that account for individual differences, thereby enhancing the explanatory power of the built model. A survey is used to collect data from users of an e-government learning website in Taiwan. Structural equation modeling is employed to examine the fit of the data to the model. From a theoretical point of view, this research extends the TAM to e-government learning and identifies the perceived e-government learning value and perceived enjoyment as antecedents of usage of e-government learning. This study also provides directions for future research and approaches to promote e-government learning.     

Auf der Suche nach Verkettungen in Entity-Relationship-Schemata

Zusammenfassung. Redundante Komponenten in Entity-Relationship-Schemata führen zu Speicherverschwendung und Fehlern bei der Nutzung der aus dem Schema gewonnenen Datenbanken. Zwischen Schemaredundanz und dem Konzept der ableitbaren Komponenten besteht eine enge Verbindung, denn redundante Schemakomponenten sind stets ableitbar. Andererseits ist nicht jede ableitbare Komponente auch redundant. Es wird deshalb zun?chst das Verh?ltnis zwischen redundanten und ableitbaren Komponenten diskutiert und eine Klassifizierung eingeführt, welche die Modellierer bef?higt, entbehrliche von nicht entbehrlichen Komponenten zu unterscheiden. Eine spezielle Art ableitbarer Komponenten, die Verkettung von Beziehungsarten, wird anschlie?end mit allen ihren Erscheinungsformen vorgestellt. Au?erdem werden Methoden diskutiert, die helfen k?nnen, Verkettungen aufzudecken. Eingegangen am 30. Mai 1996 / Angenommen am 8. April 1997     

The metabolic cost of two ranges of arm position height with and without hand weights during low impact aerobic dance.

To determine the energy cost of low impact aerobic dance while varying arm movement height and the use of hand weights, 10 adults volunteered to participate in four choreographed trials. All trials consisted of identical leg movements. Arm movements, however, were performed above shoulder level both with and without 0.9-kg hand weights and below shoulder level both with and without 0.9-kg hand weights. Open circuit spirometry was employed throughout the 10-min videotape guided trials, and heart rate was measured by telemetry. Neither the use of hand weights nor the change in arm position height significantly altered the energy cost of low impact aerobic dance. However, heart rate responses were significantly different. Caution should be observed by aerobics instructors and participants as to the use of heart rate as an indicator of intensity for low impact aerobic dance.     

Examining Transcultural Spiritual Literacies Among Latino Children Through Artifactual Mediations

Although the notion of cultural capital (Bourdieu, 1986) has been well studied and affirmed as important in recognizing the strengths of children and developing inclusive pedagogical models (Albright & Luke, 2008), this article presents a study of transcultural spiritual literacy—an element of cultural capital that is often overlooked, seldom studied in an organized fashion (Smith & Osborn, 2007, p. 23), and rarely validated in pedagogical inquiry as a vital indicator of children’s meaning-making. However, this important form of cultural capital threads through the lives of children who participated in this study, which provided a “multi-modal ethnographic gaze” (Rowsell, 2011, p. 335) of spiritual literacies of 14 children from first-generation immigrant Latino families at a U.S. church-affiliated community center. This article, which discusses part of that study, will focus on the artifactual mediations of one of those children: Paulina. Spirituality, although not synonymous with religion in our study, overlaps with religion in both space and ideology, and surround issues including identity, transcultural navigations, and sociocritical perspectives and understandings.     

Using Nearpod in elementary guided reading groups

A student teacher placed at a school with a high English Language Learner population used mini iPads, and an application called Nearpod, during guided reading instruction. Groups of students in a fourth grade classroom used this application. The students and the teacher were interviewed to determine the benefits and challenges of this approach. An analysis of data revealed that all of the students found this type of guided reading to be beneficial and motivating in learning the content presented through the application. Students also explained how they could transfer the knowledge gained into their independent work. The teacher discussed how it improved organization in a guided reading group, but how careful consideration and planning must be done to ensure the technology will work properly during guided reading. It is recommended that the Nearpod application be used in guided reading lessons because of its user-friendliness, ability to engage students, and monitor their progress.     

Discovering the More: Reading Wright's,Colette's,and Cather's Texts as Philosophy of Education

Rather than using literary texts to evidence an analytic argument, within this piece we read Julia McNair Wright's (US, 1840–1902), Sidonie-Gabrielle Colette's (France, 1873–1954), and Willa Cather's (US, 1873–1947) texts through theoretical lenses that expose their educational meaning and value and that create conversation among them concerning girls’ and women's educations. While we do not claim that one can generalize these women's works and lessons to every life, we contend that these women and the literary products they created offer girls and women powerful lessons about resistance, subversion, and nurturing one's intellect, lessons that in some ways transcend class and race in particular. First, we define and explain Bruner's concept of the more using Rosenblatt, Gallagher, and Gardner's theories and findings to illuminate his concept. Next, we identify and examine three themes that emerge across these authors’ texts—subverting through the everyday, becoming one's own steward, and moving from survival to self-actualization. Establishing these themes first in Wright's texts, we then use them to frame Colette's and Cather's fiction and support these themes by focusing on one lesson that emerges from each author's work(s). Finally, we ask what one might learn about educating girls and women from these texts and others whose educative meaning and value remain hidden.