Early Language Experience in a Tseltal Mayan Village     

Marisa Casillas  Penelope Brown  Stephen C. Levinson 《Child development》2020,91(5):1819-1835

Daylong at-home audio recordings from 10 Tseltal Mayan children (0;2–3;0; Southern Mexico) were analyzed for how often children engaged in verbal interaction with others and whether their speech environment changed with age, time of day, household size, and number of speakers present. Children were infrequently directly spoken to, with most directed speech coming from adults, and no increase with age. Most directed speech came in the mornings, and interactional peaks contained nearly four times the baseline rate of directed speech. Coarse indicators of children’s language development (babbling, first words, first word combinations) suggest that Tseltal children manage to extract the linguistic information they need despite minimal directed speech. Multiple proposals for how they might do so are discussed.  相似文献   

Evaluating the effectiveness of KooLKIDS: An interactive social emotional learning program for Australian primary school children     

Annemaree Carroll  Molly McCarthy  Stephen Houghton  Emma Sanders O'Connor 《Psychology in the schools》2020,57(6):851-867

The effectiveness of universal social emotional learning (SEL) programs are dependent on the incorporation of best practice principles, including an evaluative component. In the present study, the effects of a best practice, teacher-led SEL program was examined with 854 children aged 8–12 years. KooLKIDS uses an interactive multimedia format and animated character to help children develop their emotion regulation capacities, social and friendship skills, empathy and compassion for others, and self-esteem. A quasi-experimental waitlist-control design was used to examine the impact of KooLKIDS on social and emotional competence, behavioral and emotional problems, academic achievement and effort. Hierarchical linear modeling demonstrated significant increases in social and emotional competence, and reductions in internalizing and externalizing problems in children post KooLKIDS program in the intervention group. The findings suggest that KooLKIDS has strong potential as a teacher-led, classroom-based, structured program for enhancing children's social and emotional learning.  相似文献   

History in your hand     

Stephen J. Greenberg 《Journal of the Medical Library Association》2021,109(4):697

In the swirl of current events including a pandemic and new chapters in the awareness of race and gender, it is the professional responsibility of librarians and archivists to create durable records for future scholars, so they can understand our present.  相似文献   

Tutor and tutee characteristics as predictors of tutorial outcomes     

Stewart W. Ehly  Stephen C. Larsen 《Psychology in the schools》1976,13(3):348-349

A peer tutoring program in spelling was developed to investigate the effects of several tutor and tutee characteristics on tutorial outcomes, amount of learning and learning efficiency. Examination of the data reveals that only the tutee's pretutorial spelling score was a significant predictor of the amount of learning.  相似文献   

“I Hear America Singing”: Folk Music and National Identity Rachel Clare Donaldson. Philadelphia: Temple University Press, 2014.          下载免费PDF全文

Stephen Curley 《Journal of American culture (Malden, Mass. : 2003)》2016,39(2):251-252

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An exploration of organization dissent and workplace freedom of speech among young professional intra-urban migrants in Shanghai     

Cheng Zeng  Stephen M. Croucher 《Journal of International and Intercultural Communication》2017,10(3):201-218

This study explores the factors influencing the dissent behavior and perceptions of workplace freedom of speech among young Chinese professionals who are intra-urban migrants. It attempts to grasp the role of the Chinese household registration system, referred to as Hukou, in migrants’ professional and everyday life. Fourteen interviews were conducted with young, well-educated intra-urban migrants who possessed middle-income jobs but did not possess a Shanghai registration (Hukou). This study reveals that traditional Confucian values are significant in shaping Chinese migrant workers’ expressions of dissent and perceptions of workplace freedom of speech. Findings from this study demonstrate that further attention to professional migrants is warranted to understand their unique position in Chinese society. Internal migration is a global phenomenon particularly prominent in developing countries. This study is an attempt to shed light on internal migrant’s social and organizational life in developing economies.  相似文献   

The effect of mountain bike wheel size on cross-country performance     

Howard Thomas Hurst  Jonathan Sinclair  Stephen Atkins  Lee Rylands  John Metcalfe 《Journal of sports sciences》2017,35(14):1349-1354

ABSTRACT

The purpose of this study was to determine the influence of different wheel size diameters on indicators of cross-country mountain bike time trial performance. Nine competitive male mountain bikers (age 34.7 ± 10.7 years; stature 177.7 ± 5.6 cm; body mass 73.2 ± 8.6 kg) performed 1 lap of a 3.48 km mountain bike (MTB) course as fast as possible on 26″, 27.5″ and 29″ wheeled MTB. Time (s), mean power (W), cadence (revs · min^?1) and velocity (km · h^?1) were recorded for the whole lap and during ascent and descent sections. One-way repeated measure ANOVA was used to determine significant differences. Results revealed no significant main effects for any variables by wheel size during all trials, with the exception of cadence during the descent (F_{(2, 16)} = 8.96; P = .002; P² = .53). Post hoc comparisons revealed differences lay between the 26″ and 29″ wheels (P = .02). The findings indicate that wheel size does not significantly influence performance during cross-country when ridden by trained mountain bikers, and that wheel choice is likely due to personal choice or sponsorship commitments.  相似文献   

Sport and amateurism: new directions     

Carol Osborne  Stephen Wagg 《Sport in History》2017,37(2):121-123

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An analytical solution for the multidimensional degradation of a packed bed thermocline     

Stephen B. Margolis 《Journal of The Franklin Institute》1979,307(1):39-58

A multidimensional, time-dependent model of the thermocline degradation in a packed bed thermal storage tank is presented. The formulation includes the effects of finite tank length, multidimensional thermal conduction, heat transfer between the fluid and solid portions of the bed, and heat losses across all tank surfaces. The technique used to solve the coupled pair of parabolic partial differential equations describing the degradation of the thermocline is based on a vectorized separation of variables approach. Assuming cylindrical geometry, the analysis leads to separate eigenvalue problems for the radial, angular, and axial spatial dependencies of the fluid and solid temperatures in the bed. The eigenvalues are readily calculated and the corresponding eigenfunctions are shown to form a complete set of spatial basis functions for the solution space. The method and results are illustrated by several examples.  相似文献   

Nielson,G. E. Helping children behave: A handbook of applied learning principles. Chicago: Nelson-Hall, 1974, 170 pp., $8.95     

Stephen J. Robertson 《Psychology in the schools》1977,14(1):125-126

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