排序方式： 共有82条查询结果，搜索用时 125 毫秒
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Marko Divjak Valentina Prevolnik Rupel Kristijan Musek Lešnik 《Educational Media International》2018,55(3):287-300
The main objective of the research was to analyse the study attitudes and study behaviour of online students at DOBA Business School. Furthermore, the aim was to evaluate the interrelationship between study attitudes and study behaviour and to assess the predictive value of the two sets of variables for students’ general satisfaction with the study programmes. A total of 331 students participated in the web survey. Participants expressed the most positive attitudes towards the use of technology and flexibility of online learning, while the absence of personal contacts was also perceived as highly favourable. Average scores for both deep and strategic approaches were quite high, while the surface approach was much less prominent . Participants were highly engaged with their teamwork assignments, whereas proactive communication was somewhat less developed . Study attitudes seem to be far more powerful predictors of general satisfaction than study behaviour, which is not surprising. Satisfaction is thought to be the result of the complex subjective evaluation of all relevant aspects of the study programme implementation, as they were measured by attitudinal subscales. 相似文献
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La Rotta Daniel Usuga Olga Cecilia Clavijo Valentina 《Learning Environments Research》2020,23(2):251-267
Learning Environments Research - In recent years, the offer of higher-education programs under online modality has grown significantly. This situation has generated the need to evaluate the quality... 相似文献
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The purpose of this study was to investigate the changes in selected biomechanical variables in 80-m maximal sprint runs while imposing changes in step frequency (SF) and to investigate if these adaptations differ based on gender and training level. A total of 40 athletes (10 elite men and 10 women, 10 intermediate men and 10 women) participated in this study; they were requested to perform 5 trials at maximal running speed (RS): at the self-selected frequency (SFs) and at SF ±15% and ±30%SFs. Contact time (CT) and flight time (FT) as well as step length (SL) decreased with increasing SF, while kvert increased with it. At SFs, kleg was the lowest (a 20% decrease at ±30%SFs), while RS was the largest (a 12% decrease at ±30%SFs). Only small changes (1.5%) in maximal vertical force (Fmax) were observed as a function of SF, but maximum leg spring compression (ΔL) was largest at SFs and decreased by about 25% at ±30%SFs. Significant differences in Fmax, Δy, kleg and kvert were observed as a function of skill and gender (P < 0.001). Our results indicate that RS is optimised at SFs and that, while kvert follows the changes in SF, kleg is lowest at SFs. 相似文献
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Anastasia N. Gubaidullina Valentina N. Gorenintseva 《Children‘s Literature in Education》2017,48(3):201-213
A new model of society in post-Soviet Russia introduced novel family patterns to everyday life as well as to children’s literature, with traditional parent and children’s functions becoming subject to rethinking. The tendency to reconsider parental functions can be observed in texts from different genres, but it appears most overtly in modern fairy tales which, on the one hand, link modernity with the national folkloric code but, on the other, aim to overcome the code. Unlike many contemporary Russian authors for children, who leave little narrative space for parents, Sergey Sedov makes the mother central to his “Fairy Tales About Mums.” He describes various situations in which this figure regains the depth and comprehensiveness of a Jungian Great Mother Archetype. The author combines different fairy tales, cultural stereotypes and literary themes to create the image of a new mother who possesses various roles, some of which place her in opposition to the gender stereotype of patriarchal Russian folklore. This article uses structural, typological and motive methods of analysis to trace the transformation of the mother’s image from the traditional folktale canon to determine its activity-related and axiological aspects and to analyse various manifestations of the mother in terms of the tales’ semantic and aesthetic integrity. 相似文献
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Gabriel PEREZ Valentina VERDEJO Clarissa GONDIM-PORTO Julieta ORLANDO Margarita CARU 《Journal of Zhejiang University. Science. B》2014,15(11):966-978
研究目的：开发具有种属特异性序列特征性扩增区域（SCAR）标记物来监测哈茨木霉在其入侵的试验菌群中的定殖和生长,为哈茨木霉应用于生物防治等生态和生物技术中提供支撑。
创新要点：多种木霉属真菌能与各种微观和宏观的生物有机体建立相互作用。利用这些相互作用,木霉可做为原生种群的入侵物种而用于生物防治。本文通过使用试验菌群为研究模型,利用随机扩增多态性DNA（RAPD）技术和序列特征性扩增区域（SCAR）标记物来监测菌群中哈茨木霉的生长状态。
研究方法：利用随机扩增多态性DNA（RAPD）技术,从16个10聚体引物进行多态性筛选,其中1个引物扩增出对应哈茨木霉的条带。对该条带进行克隆测序,并设计5个20-23聚体引物。成功利用引物对2F2／2R2和2F2／2R3278分别特异性地扩增出哈茨木霉BpTloa菌株278bp和448bp的DNA片段。同时,用这两个引物对14个哈茨木霉菌株和几种不同的真菌菌株进行特异性对照试验,也只成功扩增出哈茨木霉菌株。此外,使用真菌DNA混合物和试验真菌群的DNA为模板,采用实时聚合酶链式反应（PCR）对引物对2F2／2R2进行评估。当仅使用100份SCAR标记物或哈茨木霉仅占整个菌群的0．1％时,仍能检测出哈茨木霉。
重要结论：本研究所建立的SCAR分子标记能有效监测菌群中的哈茨木霉的定殖和生长,具有较高特异性、灵敏度和准确度。 相似文献
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Linda Jarmulowicz Sarah E. Hay Valentina L. Taran Corinna A. Ethington 《Reading and writing》2008,21(3):275-297
Oral language is the foundation on which literacy initially builds. Between early developing oral language skills and fluent
reading comprehension emerge several types of metalinguistic ability, including phonological and morphological awareness.
In this study, a developmental sequence is proposed, beginning with receptive language followed by phonological awareness,
morphological awareness, and a new metalinguistic task measuring oral morphophonological accuracy (MPA), followed by decoding
and culminating in reading comprehension. MPA is a measure of accurate primary stress placement in the production of derived
words with non-neutral, stress changing suffixes (e.g., -ity). A path analysis with data from 76 third graders was used to evaluate the direct and indirect effects of these variables.
The developmental model was confirmed, and a metalinguistic continuum, with MPA emerging after both PA and MA, was supported.
Decoding and receptive language were the best unique predictors of reading comprehension. Surprisingly, MPA was more important
to decoding than was PA, whereas MA was only indirectly implicated in both decoding and reading comprehension. 相似文献
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Valentina Vidranski Renata Laskaj Dubravka Sikiric Visnja Skerk 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(2):285-294