排序方式： 共有93条查询结果，搜索用时 15 毫秒
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Emiddia Longobardi Pietro Spataro Marta D’Alessandro Rita Cerutti 《Early education and development》2017,28(4):377-395
Research Findings: The present cross-sectional study investigated the question of whether 6 different temperament dimensions (inhibition to novelty, social orientation, motor activity, positive emotionality, negative emotionality, and attention) influenced cognitive and affective theory of mind (ToM) in 168 children (86 three/four-year-olds and 82 four/five-year-olds). Temperament was measured via a parent-report questionnaire, cognitive ToM via a classical false-belief task, and affective ToM via a comprehensive test tapping 3 levels of emotion comprehension (external, mental, and reflexive). In addition, language competence was assessed with a direct test evaluating both receptive and expressive language. The results showed that after we controlled for language ability, inhibition to novelty predicted higher levels of cognitive ToM in 4/5-year-old children. In addition, higher levels of social orientation predicted better comprehension of the external aspects of emotion in both younger and older children. Practice or Policy: Our results highlight the importance of the early identification of less sociable children, who might benefit from training interventions aimed at increasing their affective ToM abilities. At the same time, they are also consistent with previous evidence indicating that an inhibited approach to social interaction can promote false-belief understanding. 相似文献
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Fiorella De Cindio Oliverio Gentile Philip Grew Daniela Redolfi 《The Information Society》2003,19(5):395-406
This article investigates the intertwining relationships between the Gemeinschaft and the Gesellschaft dimension of a community network (CN)—that is, of a virtual community whose members' common interest is a locality, in our case the city of Milan, Italy. The article looks through the experience of the last 7 years of life on RCM—the Milan Community Network—to reflect on the role that the sharing of rules of behavior has on the evolution of social structure in a virtual community. It identifies three phases of development—the design phase, the first growth phase, and the most recent phase—and presents the social structure set up to guarantee governance of the CN. The conclusions show that the third phase is not an actual stable state, as the continuous evolution of the societal and technological context requires continuous redesign of the CN itself in order to meet the renewed demands of a new context. 相似文献
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Most traditional concepts about creative writers include the idea that creative talent is evident early - that productive and talented writers began their careers at a young age. Yet few empirical studies have actually examined this supposition. A study of 986 creative writers from the twentieth century investigated the relationship between the age at first publication and measures of productivity (numbers of works produced) and success (winning a Nobel or Pulitzer prize). While significant relationships were found between an early debut and increased productivity in poetry and total number of works, it is more noteworthy that a writer's age at first publication was not significantly related to total productivity in fiction or success. Implications for creative writers and teachers of creative writing are discussed, along with how these findings might be incorporated into the current standards-based reform efforts. 相似文献
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Alessandro Moura Zagatto Paulo Eduardo Redkva Rodrigo Araújo Bonetti de Poli Joel Abraham Martinez González Jeniffer Zanetti Brandani Thiago Penedo 《European Journal of Sport Science》2019,19(5):645-652
The purpose of this study was to investigate the use of a single 3-min all-out maximal effort to estimate anaerobic capacity (AC) through the lactate and excess post-exercise oxygen consumption (EPOC) response methods (AC[La?]+EPOCfast) on a cycle ergometer. Eleven physically active men (age?=?28.1?±?4.0?yrs, height?=?175.1?±?4.2?cm, body mass?=?74.8?±?11.9?kg and ?O2max?=?40.7?±?7.3?mL?kg?1?min?1), participated in the study and performed: i) five submaximal efforts, ii) a supramaximal effort at 115% of intensity of ?O2max, and iii) a 3-min all-out maximal effort. Anaerobic capacity was estimated using the supramaximal effort through conventional maximal accumulated oxygen deficit (MAOD) and also through the sum of oxygen equivalents from the glycolytic (fast component of excess post-exercise oxygen consumption) and phosphagen pathways (blood lactate accumulation) (AC[La?]+EPOCfast), while during the 3-min all-out maximal effort the anaerobic capacity was estimated using the AC[La?]+EPOCfast procedure. There were no significant differences between the three methods (p?>?0.05). Additionally, the anaerobic capacity estimated during the 3-min all-out effort was significantly correlated with the MAOD (r?=?0.74; p?=?0.009) and AC[La?]+EPOCfast methods (r?=?0.65; p?=?0.029). Therefore, it is possible to conclude that the 3-min all-out effort is valid to estimate anaerobic capacity in physically active men during a single cycle ergometer effort. 相似文献
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A number of recent studies have measured the extent and timing of segment rotation during the golf swing. A promising technique,
instantaneous screw axis (ISA) theory, could provide a better expression of segment rotation. In Part 1 of this two-part study,
the objectives are to identify the ISA of the pelvis, shoulders and left arm during the downswing, compute segment angular
velocity relative to that segment’s ISA and verify that ISA theory is a valid tool to analyse segment rotation during the
golf swing. Results indicate that for all subjects, at least 71% of marker velocity is a result of rotation about their respective
ISA, when averaging results over the duration of the downswing, confirming that motion is primarily rotational. Furthermore,
ISA position and orientation of each segment approaches, on average, the expected gross axis of rotation, confirming that
motion about the ISA is representative of joint motion. 相似文献
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Reduction of water evaporation in polymerase chain reaction microfluidic devices based on oscillating-flow 总被引：1，自引：0，他引：1
Alessandro Polini Elisa Mele Anna Giovanna Sciancalepore Salvatore Girardo Adriana Biasco Andrea Camposeo Roberto Cingolani David A. Weitz Dario Pisignano 《Biomicrofluidics》2010,4(3)
Producing polymeric or hybrid microfluidic devices operating at high temperatures with reduced or no water evaporation is a challenge for many on-chip applications including polymerase chain reaction (PCR). We study sample evaporation in polymeric and hybrid devices, realized by glass microchannels for avoiding water diffusion toward the elastomer used for chip fabrication. The method dramatically reduces water evaporation in PCR devices that are found to exhibit optimal stability and effective operation under oscillating-flow. This approach maintains the flexibility, ease of fabrication, and low cost of disposable chips, and can be extended to other high-temperature microfluidic biochemical reactors. 相似文献
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Alessandro N. Vargas Constantin F. Caruntu João Y. Ishihara 《Journal of The Franklin Institute》2019,356(1):31-41
This paper presents conditions to assure the exponential stability in probability for autonomous switching linear systems. The switching signal acting on the autonomous system produces intervals that follow independent, identically distributed stochastic processes—the stability then follows by verifying simple-to-check linear matrix inequalities. 相似文献
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This study employs digital methods in conjunction with traditional content and discourse analyses to explore how the US President Donald Trump conducts diplomacy on Twitter and how, if at all, diplomatic entities around the world engage in diplomatic exchanges with him. The results confirm speculations that Trump’s diplomatic communication on Twitter disrupts traditional codes of diplomatic language but show little evidence that new codes of diplomatic interactions on social media are being constructed, given that other diplomatic entities around the world mostly remain within the confines of traditional notions of diplomacy in (not) communicating with Trump on Twitter. 相似文献