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11.
Zhouchao Wei Amin Yousefpour Hadi Jahanshahi Uǧur Erkin Kocamaz Irene Moroz 《Journal of The Franklin Institute》2021,358(1):814-833
Having found hidden hyperchaos in a 5D self-exciting homopolar disc dynamo, we study the existence of a Hopf bifurcation, which leads to unstable limit cycles bifurcating from a stable equilibrium. Hidden chaos with only stable equilibria can be observed from the Hopf bifurcation: a typical way to enable hidden attractors to be located. We then provide a new fuzzy controller, and a fast fuzzy disturbance observer, based on terminal sliding mode control for synchronization of the hyperchaotic system. Fuzzy inference is considered to weaken the chattering phenomena. Using Lyapunov stability theory, the stability of the closed-loop system is proved. Finally, simulations of synchronization are illustrated to show the efficient performance of the designed control method via external disturbances and dynamic uncertainties. 相似文献
12.
Lampert Irene Niebert Kai Wilhelm Markus 《International Journal of Science and Mathematics Education》2022,20(7):1315-1336
International Journal of Science and Mathematics Education - The burden placed by human activities on Earth is ever-increasing. Global environmental changes have profoundly affected the... 相似文献
13.
Irene Malcolm 《Learning, Media and Technology》2014,39(4):449-467
Against the backdrop of intensified migration linked to globalisation, this article considers the implications of knowledge migration for future digital workers. It draws empirically on a socio-material analysis of the international software localisation industry. Localisers' work requires linguistic, cultural and software engineering skills to adapt digital products to be marketed worldwide. The article addresses the problem of the need for better understanding of knowledge practices in digital working and offers new insights by examining work and learning against the theoretical question of how knowledge migrates. Drawing on the writing of sociologist Karin Knorr Cetina, it illustrates how workers reformulate knowledge and practise visibility through object relations that support learning. The article concludes with five recommendations for incorporating insights gained through this analysis in education. 相似文献
14.
V. D. Chamizo Clara A. Rodríguez Irene Torres Marta N. Torres N. J. Mackintosh 《Learning & behavior》2014,42(4):348-356
In Experiment 1, two groups of female rats were trained in a triangular pool to find a hidden platform whose location was defined in terms of a single a landmark, a cylinder outside the pool. For one group, the landmark had only a single pattern (i.e., it looked the same when approached from any direction), while for the other, the landmark contained four different patterns (i.e., it looked different when approached from different directions). The first group learned to swim to the platform more rapidly than the second. Experiment 2 confirmed this difference when female rats were trained in a circular pool but found that male rats learned equally rapidly (and as rapidly as females trained with the single-pattern landmark) with both landmarks. This second finding was confirmed in Experiment 3. Finally, in Experiment 4a and 4b, male and female rats were trained either with the same, single-pattern landmark on all trials or with a different landmark each day. Males learned equally rapidly (and as rapidly as females trained with the unchanged landmark) whether the landmark changed or not. We conclude that male and female rats learn rather different things about the landmark that signals the location of the platform. 相似文献
15.
Existing data indicate that newborns are able to recognize individual faces, but little is known about what perceptual cues drive this ability. The current study showed that either the inner or outer features of the face can act as sufficient cues for newborns' face recognition (Experiment 1), but the outer part of the face enjoys an advantage over the inner part (Experiment 2). Inversion of the face stimuli disrupted recognition when only the inner portion of the face was shown, but not when the whole face was fully visible or only the outer features were presented (Experiment 3). The results enhance our picture of what information newborns actually process and encode when they discriminate, learn, and recognize faces. 相似文献
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Irene Bush Steinbock 《Journal of Jewish Education》2013,79(2):40-44
“It is revealed and known in front of the One who spoke and the world came into existence that a child loves1 his mother more than his father because she appeases him with words. Therefore the Holy One Blessed be He put love of father before love of mother. And it is revealed and known before He who spoke and the world came into existence that a child fears his father more than his mother because he teaches him Torah. Therefore, the Holy One Blessed He put fear of mother before fear of father.2 相似文献
18.
Irene Sánchez-Garrote 《Cultura y Educación》2013,25(1):221-233
AbstractDigital resources can open up new means of communication between families and schools, helping to create links and build relationships between both educational agents. The role played by digital resources to establish family-school relationships in pre-schools for children up to three is identified and analysed on the basis of experiences in schools in which ICT resources are being used for communicative processes. The results show that the most commonly used resources are blogs/websites and email, mainly for providing families with information. It is also observed that the introduction of ICT tools in these relations lacks the pedagogical reflection that would determine the communicative goals and the role played by both educational agents in the relationship scenarios mediated by ICT. 相似文献
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ABSTRACT Game developers potentially convey socio-cultural values about gender through design choices. This study interpreted the designs of 11 purposively selected female game characters, developed by studios located in the United States and Japan, through the lens of ambivalent sexism. This social psychological theory posits that sexism consists of hostile and benevolent attitudes about women. Two themes emerged across characterizations: bodies as objects, bodies as weapons and (in)dependence. Both consisted of empowering qualities paired with problematic beliefs about women. This analysis contributes to interdisciplinary literature by using an empirical perspective to interpret gender representations in video games. 相似文献