Managing the Library Automation Project     

R. Thomas Lange 《Journal of the Medical Library Association》1986,74(4):387-388

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How a mother does it     

Ann Lange 《Early Childhood Education Journal》1974,2(2):5-7

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Die Handlungsrelevanz erziehungs-wissenschaftlicher Erkenntnisse     

J. Lange 《Sportwissenschaft》1978,8(4):445-450

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Geometrical effects in microfluidic-based microarrays for rapid, efficient single-cell capture of mammalian stem cells and plant cells     

Lawrenz A  Nason F  Cooper-White JJ 《Biomicrofluidics》2012,6(2):24112-2411217

In this paper, a detailed numerical and experimental investigation into the optimisation of hydrodynamic micro-trapping arrays for high-throughput capture of single polystyrene (PS) microparticles and three different types of live cells at trapping times of 30 min or less is described. Four different trap geometries (triangular, square, conical, and elliptical) were investigated within three different device generations, in which device architecture, channel geometry, inter-trap spacing, trap size, and trap density were varied. Numerical simulation confirmed that (1) the calculated device dimensions permitted partitioned flow between the main channel and the trap channel, and further, preferential flow through the trap channel in the absence of any obstruction; (2) different trap shapes, all having the same dimensional parameters in terms of depth, trapping channel lengths and widths, main channel lengths and widths, produce contrasting streamline plots and that the interaction of the fluid with the different geometries can produce areas of stagnated flow or distorted field lines; and (3) that once trapped, any motion of the trapped particle or cell or a shift in its configuration within the trap can result in significant increases in pressures on the cell surface and variations in the shear stress distribution across the cell’s surface. Numerical outcomes were then validated experimentally in terms of the impact of these variations in device design elements on the percent occupancy of the trapping array (with one or more particles or cells) within these targeted short timeframes. Limitations on obtaining high trap occupancies in the devices were shown to be primarily a result of particle aggregation, channel clogging and the trap aperture size. These limitations could be overcome somewhat by optimisation of these device design elements and other operational variables, such as the average carrier fluid velocity. For example, for the 20 μm polystyrene microparticles, the number of filled traps increased from 32% to 42% during 5–10 min experiments in devices with smaller apertures. Similarly, a 40%–60% reduction in trapping channel size resulted in an increase in the amount of filled traps, from 0% to almost 90% in 10 min, for the human bone marrow derived mesenchymal stem cells, and 15%–85% in 15 min for the human embryonic stem cells. Last, a reduction of the average carrier fluid velocity by 50% resulted in an increase from 80% to 92% occupancy of single algae cells in traps. Interestingly, changes in the physical properties of the species being trapped also had a substantial impact, as regardless of the trap shape, higher percent occupancies were observed with cells compared to single PS microparticles in the same device, even though they are of approximately the same size. This investigation showed that in microfluidic single cell capture arrays, the trap shape that maximizes cell viability is not necessarily the most efficient for high-speed single cell capture. However, high-speed trapping configurations for delicate mammalian cells are possible but must be optimised for each cell type and designed principally in accordance with the trap size to cell size ratio.  相似文献   

Word co-occurrences on Webpages as a measure of the relatedness of organizations: A new Webometrics concept     

Liwen Vaughan  Justin You 《Journal of Informetrics》2010,4(4):483-491

Web hyperlink analysis has been a key topic of Webometric research. However, inlink data collection from commercial search engines has been limited to only one source in recent years, which is not a promising prospect for the future development of the field. We need to tap into other Web data sources and to develop new methods. Toward this end, we propose a new Webometrics concept that is based on words rather than inlinks on Webpages. We propose that word co-occurrences on Webpages can be a measure of the relatedness of organizations. Word co-occurrence data can be collected from both general search engines and blog search engines, which expands data sources greatly. The proposed concept is tested in a group of companies in the LTE and WiMax sectors of the telecommunications industry. Data on the co-occurrences of company names on Webpages were collected from Google and Google Blog. The co-occurrence matrices were analyzed using MDS. The resulting MDS maps were compared with industry reality and with the MDS maps from co-link analysis. Results show that Web co-word analysis could potentially be as useful as Web co-link analysis. Google Blog seems to be a better source than Google for co-word data collection.  相似文献   

Pre-service educators’ dispositions toward inclusive practices for students with emotional and behavioural difficulties     

Justin D. Garwood  Christopher L. Van Loan 《International Journal of Inclusive Education》2013,17(12):1332-1347

ABSTRACT

In response to challenging behaviour from students with emotional and behavioural difficulties (EBD), teachers around the world often label students as challenging, defining them by their disability. Negative views of students with EBD are a barrier to their inclusion and a major challenge for policy in the United States and elsewhere associated with access to the education system for students with disabilities. Pre-service teacher education has been highlighted as an optimum time to instil in pre-service educators a more equitable disposition toward behaviour management and inclusive practices. Therefore, the purpose of the current mixed-methods study was to assess whether or not an undergraduate course focused on relationship-based approaches to positive behaviour support could impact pre-service educators’ dispositions toward inclusive classroom practices for students with EBD. Survey results from 41 pre-service educators indicated that participants made significant improvements in their knowledge and understanding of compassionate behaviour management, intentional relationship building, and establishment of a welcoming classroom environment. Analysis of participants’ written responses to open-ended questions revealed several themes regarding changes in dispositions toward students with EBD. Implications for pre-service educator preparation and inclusion of students with EBD are discussed.  相似文献   

The Growth of Phonological Awareness by Children With Reading Disabilities: A Result of Semantic Knowledge or Knowledge of Grapheme-Phoneme Correspondences?     

Justin C. Wise  Rose A. Sevcik  Robin D. Morris  Maureen W. Lovett  Maryanne Wolf 《Scientific Studies of Reading》2013,17(2):151-164

According to the Lexical Restructuring Model (Metsala & Walley, 1998 Metsala, J. L. and Walley, A. C. 1998. “Spoken vocabulary growth and the segmental restructuring of lexical representation: Precursors to phonemic awareness and early reading ability”. In Word recognition in beginning literacy, Edited by: Metsala, J. L. and Ehri, L. C. 89–120. Mahwah, NJ: Lawrence Erlbaum Associates, Inc.  [Google Scholar]), children move from holistic representations of words, to syllabic representations, and finally to phonemic representations through a restructuring process driven by their developing lexical base. In contrast, the psycholinguistic grain size theory put forth by Ziegler and Goswami (2005) Ziegler, J. C. and Goswami, U. 2005. Reading acquisition, developmental dyslexia, and skilled reading across languages: A psycholinguistic grain size theory.. Psychological Bulletin, 131: 3–29. [Crossref], [PubMed], [Web of Science ®] , [Google Scholar] suggests that the awareness of individual phonemes is not possible without direct literacy instruction. The purpose of this study was to examine whether semantic knowledge and/or knowledge of grapheme/phoneme correspondences influenced the acquisition of word-blending skills by a sample of children with a reading disability. Participants were 211 second-grade and third-grade students from public elementary schools who were assigned to a reading intervention. Hierarchical Linear Modeling techniques were used to model individual growth curves of word-blending skills. Overall, findings support the psycholinguistic grain size theory of reading and suggest that instruction in the relationship between orthographic patterns and their corresponding sounds is necessary for the development of phonological awareness.  相似文献   

Integrating climate,biodiversity, and sustainable land-use strategies: innovations from China     

Guido Schmidt-Traub  Harvey Locke  Jixi Gao  Zhiyun Ouyang  Justin Adams  Lin Li  Enric Sala  M Rebecca Shaw  Sebastian Troëng  Jing Xu  Chunquan Zhu  Changxin Zou  Tianxiao Ma  Fuwen Wei 《国家科学评论(英文版)》2021,8(7)

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Impaired motor control after sport-related concussion could increase risk for musculoskeletal injury: Implications for clinical management and rehabilitation     

Terese L. Chmielewski  Justin Tatman  Shuhei Suzuki  MaryBeth Horodyski  Darcy S. Reisman  Russell M. Bauer  James R. Clugston  Daniel C. Herman 《运动与健康科学(英文)》2021,10(2):154

This review presents a conceptual framework and supporting evidence that links impaired motor control after sport-related concussion (SRC) to increased risk for musculoskeletal injury. Multiple studies have found that athletes who are post-SRC have higher risk for musculoskeletal injury compared to their counterparts. A small body of research suggests that impairments in motor control are associated with musculoskeletal injury risk. Motor control involves the perception and processing of sensory information and subsequent coordination of motor output within the central nervous system to perform a motor task. Motor control is inclusive of motor planning and motor learning. If sensory information is not accurately perceived or there is interference with sensory information processing and cognition, motor function will be altered, and an athlete may become vulnerable to injury during sport participation. Athletes with SRC show neuroanatomic and neurophysiological changes relevant to motor control even after meeting return to sport criteria, including a normal neurological examination, resolution of symptoms, and return to baseline function on traditional concussion testing. In conjunction, altered motor function is demonstrated after SRC in muscle activation and force production, movement patterns, balance/postural stability, and motor task performance, especially performance of a motor task paired with a cognitive task (i.e., dual-task condition). The clinical implications of this conceptual framework include a need to intentionally address motor control impairments after SRC to mitigate musculoskeletal injury risk and to monitor motor control as the athlete progresses through the return to sport continuum.  相似文献   

Political Socialization of International Students: Public-Issue Discourse and Discussion on the College Campus     

Mizuki H. Wyant  Elizabeth H. Hurst  Justin Reedy 《Journal of Intercultural Communication Research》2020,49(4):372-393

ABSTRACT

This study examined international students’ interests in public issues in the U.S. and motivational factors behind their discourse or avoidance of such issues. In-depth interviews with international students revealed that they discuss certain public issues in the U.S. to gain or exchange information and knowledge, because these issues are relevant to themselves and others, or due to the misconceptions that others have about their country. Moreover, international students tend to avoid certain public issues because of the level of their knowledge and lack of interest in such issues and in order to avoid dissonance caused by the public issues.  相似文献