浇注式沥青混合料高温性能研究

车辙是正交异性钢桥面沥青混凝土铺装主要病害之一 .采用汉堡轮辙试验机 ,提出了适宜于德国、考察浇注式沥青混合料高温性能的试验条件 ,测试和比较了不同浇注式沥青混合料的高温性能 .聚合物改性沥青混合料具有较高的抗车辙能力 .滞留时间和拌和频率对浇注式沥青混合料的性能有明显的影响     

Informelles Lernen und Medienbildung

Der Begriff des informellen Lernens wird hier auf den Wissenserwerb im Rahmen der allt?glichen Nutzung von Massenmedien bezogen. Bei der genaueren Betrachtung des Mediennutzungsverhaltens von verschiedenen Altersgruppen erweisen sich sozio-kulturelle Unterschiede als wichtige Pr?diktoren für Mediennutzung und -rezeption. Das Konzept der sozialen Milieus eignet sich zur Analyse sozio-kultureller Differenzen, auch mit Blick auf die Medienbildung. Bei Kindern scheint das Herkunftsmilieu der Eltern einen zentralen Einfluss auf deren Medienbildung zu haben, w?hrend im Jugendalter auch jugendkulturelle Rahmungen bedeutsam werden. Medienrezeption wird dabei nicht als einseitiger Prozess, sondern als kommunikative Interaktion zwischen Medienproduzenten und Medienkonsumenten verstanden. Letztere bringen in der Wahl von Medien, Genres und Rezeptionskontexten auch ?sthetische Pr?ferenzen und ihren sozio-kulturellen Habitus zum Ausdruck.     

Roots and patterns in Hebrew language development: evidence from written morphological analogies

Morphology is one of the organizing principles of the mental lexicon. It is especially important in Hebrew, where word structure expresses a rich array of semantic notions. This study investigated the ability of Hebrew-speaking children to solve written morphological analogies by reading and completing two sets of real and invented root- and pattern-related nouns using a closed set of responses. In the first experiment, 152 gradeschoolers (2nd–6th grade) were administered an analogy task with real words, where they had to read written stimuli and elicit root and pattern components from them. In the second experiment, 148 gradeschoolers were administered a similar reading task with pseudowords. In both experiments, the results clearly indicate an early and robust ability of Hebrew-speaking children to perform morphological analogies using both roots and patterns. Most errors involved the root morpheme rather than the pattern morpheme, but pseudowords elicited more pattern errors. These results are discussed in view of models of morphological processing and morpho-lexical development in Hebrew.     

Testing agile requirements models

This paper discusses a model-based approach to validate software requirements in agile development processes by simulation and in particular automated testing. The use of models as central development artifact needs to be added to the portfolio of software engineering techniques, to further increase efficiency and flexibility of the development beginning already early in the requirements definition phase. Testing requirements are some of the most important techniques to give feedback and to increase the quality of the result. Therefore testing of artifacts should be introduced as early as possible, even in the requirements definition phase.     

New perspectives for the evaluation of training sessions in self-regulated learning: Time-series analyses of diary data

The present study combines a standardized diary approach with time-series analysis methods to investigate the process of self-regulated learning. Based on a process-focused adaptation of Zimmerman’s (2000) learning model, an intervention (consisting of four weekly training sessions) to increase self-regulated learning was developed. The diaries were applied to evaluate this intervention. A sample of 40 civil engineering students participated and 21 of them answered questions in standardized diaries over a five-week period. The effectiveness of the intervention was demonstrated using trend analyses that evinced significant improvements in self-regulatory behavior. In addition, interrupted time-series analyses and control group comparisons confirmed essential treatment effects. The results demonstrate the advantages of using standardized diaries to obtain ecologically valid data on daily learning.     

Judging Hebrew adjective agreement across development: syntactic and morpho-syntactic awareness

Reading and Writing - Grammatical awareness of syntax and morphology is important in children’s literacy development for both reading and writing. Hebrew, a language with rich inflectional...     

Effect of chunk strength on the performance of children with developmental dyslexia on artificial grammar learning task may be related to complexity

There’s a long held view that chunks play a crucial role in artificial grammar learning performance. We compared chunk strength influences on performance, in high and low topological entropy (a measure of complexity) grammar systems, with dyslexic children, age-matched and reading-level-matched control participants. Findings show that age-matched control participants’ performance reflected equivalent influence of chunk strength in the two topological entropy conditions, as typically found in artificial grammar learning experiments. By contrast, dyslexic children and reading-level-matched controls’ performance reflected knowledge of chunk strength only under the low topological entropy condition. In the low topological entropy grammar system, they appeared completely unable to utilize chunk strength to make appropriate test item selections. In line with previous research, this study suggests that for typically developing children, it is the chunks that are attended during artificial grammar learning and create a foundation on which implicit associative learning mechanisms operate, and these chunks are unitized to different strengths. However, for children with dyslexia, it is complexity that may influence the subsequent memorability of chunks, independently of their strength.     

Phonological awareness in Arabic: the role of phonological distance,phonological-unit size,and SES

Reading and Writing - The study tested phonological awareness in a cross-sectional sample of 200 Arabic-speaking 2nd, 4th, 6th, 8th, and 10th graders from low and mid-high Socio-Economic Status...     

Presumed Media Influences and Demands for Restrictions: Using Panel Data to Examine the Causal Direction

In line with theoretical approaches, such as the influence of presumed influence approach, many studies have shown that the stronger individuals perceive the media’s influence to be on others, the more the individuals demand restrictions on the media and its influence. However, these studies provided information only about the correlation between the two constructs and did not test the direction of their causal relationship. To close this research gap, a two-wave panel study among German citizens was conducted. The results show that, rather than being the other way around, it is the presumed strength of online media’s political influence on others that affects demands for restrictions. Moreover, the findings indicate that the presumed political influence of online media on others also affects the presumed reach of online media.