Biomechanical analyses of synchronised swimming standard and contra-standard sculling     

Lara Elena Gomes  Vera Diogo  Flávio Antônio de Souza Castro  João Paulo Vilas-Boas  Ricardo J. Fernandes  Pedro Figueiredo 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(4):354-365

Synchronised swimming involves a variety of sculling movements essential for body support and propulsion but its study is scarce. We aimed to biomechanically compare standard and contra-standard sculling techniques, and to observe the relationship between measures. Six synchronised swimmers performed two, 30 s maximal intensity, fully tethered standard and contra-standard sculling motions. Kinetic and kinematic data were obtained using a load-cell and underwater cameras, respectively. Force decreased along both techniques’ bouts, but no differences in-between techniques were noted for any kinetic variables. Standard sculling presented a higher cycle rate and a lower elbow mean angle than the contra-standard sculling (2.4 ± 0.3 vs. 2.0 ± 0.2 cycles/s and 134.1 ± 5.8 and 141.5 ± 4.7°, p < 0.05). In the standard sculling, by removing and maintaining the variation between participants (r _w and r, respectively), the absolute mean force was directly related with cycle rate (r _w  = 0.60) and wrist angular velocity during flexion (r = 0.82), while in the contra-standard condition the force was inversely associated with wrist mean angle (r = ?0.95) and directly with hand speed (r _w  = 0.76), and elbow angular velocity (r _w  ≈ 0.60). Therefore, technique learning and training require different attention by coaches and swimmers.  相似文献   

There Is No View From Nowhere: User Experience Research at the Center of Southwest Studies Library     

Lara Aase 《资料收集管理》2017,42(3-4):139-158

ABSTRACT

In the fall semester of 2016, Delaney Southwest Research Library at Fort Lewis College researched user experience, particularly of Native American undergraduate students. Results showed that Native American students were more concerned about appropriate terminology, representative content, and effective organization of the library than non-Native students were. This research will help the library improve services through collection evaluation, shelf rearrangement, library instruction, and, potentially, reclassification of Native American materials to improve browsability, house culturally sensitive material respectfully, and increase user satisfaction with our special collections.  相似文献   

Successfully Mentoring Undergraduates in Research: A How To Guide for Mathematicians     

Michael Dorff  Allison Henrich  Lara Pudwell 《PRIMUS》2017,27(3):320-336

Abstract

Undergraduate research occurs in a variety of mathematical fields and in diverse settings, but all mentors of undergraduates face a number of common considerations. This article is a brief guide to help faculty with various levels of previous mentoring experience lead students in research projects. In particular, we discuss the issues of picking appropriate research problems, recruiting students, setting expectations, moving research forward, and helping students to communicate their work.  相似文献   

The Project ‘Art for Learning Art’ in Contemporary Art Museums     

Joaquin Roldan  Rocio Lara‐Osuna  Antonio Gonzalez‐Torre 《The International Journal of Art & Design Education》2019,38(3):572-582

Projection‐based augmented reality and virtual reality are used in a visual arts‐based educational project in contemporary art museums from an a/r/tographic perspective. The project ‘Art for Learning Art’ (in Spanish, Arte para aprender arte), at the Museo CajaGRANADA in Granada (Spain) has been developed in collaboration with the University of Granada since 2013. We have employed creative, educational and research methodologies inspired by exhibited works in art museums to encourage visual feedback of visitors participating in collaborative installations. Two such experiences also were produced at the Tate Liverpool Gallery and Museum in March 2018; utilising the methodology of mediation through projection‐based augmented reality and virtual reality, which introduces facets of visual and physical experience that alter the whole experience for the museum's public. By putting on virtual reality headsets, and playing with physical movements, we generate images and change the projections in the museum using projection‐based augmented reality to disrupt the way the public typically moves in the museum. The purpose of the developed interrelations with artworks in the Museo CajaGRANADA and the Tate Liverpool Gallery and Museum was to create collaborative digital images by playing with select artworks exhibited in the museums’ collections. We use this kind of mediation in art museums to develop a visual understanding to provoke learning about art through art creation in a contemporary way. The results are extraordinary as images; they are collaborative artworks, which connect visually with the artworks in the exhibition.  相似文献   

Platelet satellitism in a trauma patient     

Kopcinovic LM  Pavic M 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2012,22(1):130-134

Platelet satellitism (PS) is a rare phenomenon observed in blood smears obtained from blood anticoagulated with EDTA. It is characterised by platelet rosetting around polymorphonuclear neutrophils and in rare cases around other blood cells. PS is a rare cause of pseudothrombocytopenia. References about the phenomenon of PS in medical literature are few. In this report we describe a case of PS fortunately noticed in one trauma patient. Furthermore, we discuss the possible pathophysiological mechanisms of PS proposed in the literature. To our knowledge this is the first case of PS reported in Croatia.  相似文献   

The Notorious Dr. Flippin: Abortion and Consequence in the Early Twentieth Century. Jamie Q. Tallman. Lubbock: Texas Tech University Press, 2011.     

Lara C. Stache 《Journal of American culture (Malden, Mass. : 2003)》2012,35(4):383-383

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Hackathons as Community-Based Learning: a Case Study     

Miguel Lara  Kate Lockwood 《TechTrends》2016,60(5):486-495

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Time on task in intensive modes of delivery     

Alison Kuiper  Ian Solomonides  Lara Hardy 《Distance Education》2015,36(2):231-245

This paper reports on an investigation into how staff teaching in compressed courses can encourage student engagement and enhance student use of learning time, despite significant restraints of time as well as distance. Typically these courses (described here as units) are expected to have comparable learning outcomes to their full-semester counterparts and provide an opportunity for students to either retake failed units or to acquire credit for their chosen degrees in accelerated time. Organising teaching and learning through intensive modes of delivery may require different approaches to curriculum development and pedagogy compared to traditional unit planning and delivery, especially when the intensive delivery utilises online technologies. This paper explores strategies employed by successful intensive mode teachers in the development and delivery units for maximised student engagement. It concludes that many of these strategies are equally applicable in online and distance education regardless of the unit being intensive or otherwise.  相似文献   

Orthographic and semantic processing in young readers          下载免费PDF全文

Lara R. Polse  Judy S. Reilly 《Journal of Research in Reading》2015,38(1):47-72

This investigation examined orthographic and semantic processing during reading acquisition. Children in first to fourth grade were presented with a target word and two response alternatives, and were asked to identify the semantic match. Words were presented in four conditions: an exact match and unrelated foil (STONE–STONE–EARS), an exact match and an orthographic neighbour foil (STONE–STONE–STOVE), a ­synonym match and an unrelated foil (STONE–ROCK–EARS) and a synonym match and an orthographic neighbour foil (STONE–ROCK–STOVE). Accuracy and reaction time results suggest that orthographic and semantic processing follow a two‐step ­acquisition pattern. First, the orthographic component of reading develops quickly; however, forming strong conceptual links from orthographic to semantic representations follows a protracted trajectory, which matures between the third and fourth grades. These results are consistent with research that suggests younger children rely on more concrete, perceptual systems and then transition to more flexible, abstract cognition.  相似文献   

Transnational Alliances: La Clase Mágica—Nepohualtzitzin Ethnomathematics Club     

Linda Prieto  Lorena Claeys  Everardo Lara González 《Journal of Latinos & Education》2015,14(2):125-134

This article exposes the ancient Nepohualtzitzin as an important contemporary mathematical tool. The design and development of Nepohualtzitzin Ethnomathematics Clubs (NECs) in predominantly Latina/o and low-income schools is also presented. NECs provide informal learning opportunities to develop and strengthen cultural connections to and abilities in mathematics for bicultural-bilingual learners, their parents, and teacher candidates. The formation of NECs is made possible through transnational alliances developed over time between the University of Texas at San Antonio, Secretaría de Educación Pública de México (Ministry of Public Education of Mexico), Coahuiltecan Indian Nation, Aztlán Associates, Danza Azteca Xinachtli, and Tzicatl—Community Development Corporation.  相似文献