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Daniela Ostatnikova Jolana Laznibatova Zdenek Putz Anna Mataseje Monika Dohnanyiova Karol Pastor 《High Ability Studies》2000,11(1):41-54
There are suggestive data to link salivary testosterone concentrations (ST) to cognitive abilities in humans. Saliva reflects the plasma-free fraction of ST, which is biologically active, available for uptake by tissues including the brain. In the present study, therefore, salivary testosterone levels in healthy preadolescent children of both sexes, 6 to 9 years old, were determined. Among a total of 215 participants, 122 were intellectually gifted, attending special classes for gifted in primary school (IQ 130 or more in two independent standard tests of general intelligence). Their ST levels were compared with ST levels of 93 non-gifted children attending regular primary school. In general, results show there are no changes in ST concentrations between ages 6 and 9. However, there are significant differences between gifted and non-gifted participants. ST levels in gifted children were lower (p < 0.01) in all age categories. This also holds for both sexes separately (p < 0.01). 相似文献
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像一只踏入地中海的靴子,意大利这个国家就如它的地形一样,注定妖娆多姿.
在意大利,现代风情与古老文明并存.作为文艺复兴的发源地,意大利拥有无数艺术、文学大师和经典作品.作为当代时尚潮流集中地,意大利又聚集了全世界最多的高级品牌. 相似文献
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Daniel E. Vigo Guido Simonelli Ianina Tuñón Daniel Pérez Chada Daniel P. Cardinali Diego Golombek 《Mind, Brain, and Education》2014,8(4):175-181
Sleep in adolescents has been shown to be an important factor when looking at physical, mental, and social well‐being. Little evidence is found regarding sleep patterns in adolescents from households facing extreme poverty, where conditions such as crowding, poor housing, sanitation or education, and precarious employment set an adverse environment for sleep. In this study, we sought to assess in a nationwide sample comprised of 1,682 adolescents from Argentina, how the presence of extreme poverty—as defined by the presence of unsatisfied basic needs (UBN)—affects the relationship of sleep duration with school, work, and other daily activities. A global high prevalence of short sleeping time, a slight increase of sleep time in adolescents with UBN, and different patterns of wake activities that predict sleep deficit, depending on the presence of UBN, were found. The poor academic achievement, increased risk of accidents, and adverse health outcomes associated with sleep deprivation support the view that sleep is an additional unsatisfied basic need that worsens living conditions at this age. The results may help to design public health policies that contribute to ameliorate this adverse situation. 相似文献
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AbstractThe endorsement of anti-corruption norms is a normative assumption in legal systems with freedom of information acts, where citizens are expected to act as monitors of the public service. Tolerance of corruption counteracts this assumption. We studied tolerance of corruption among 8th graders from Latin-American samples of the International Civic and Citizenship Study 2009. We proposed a model where associations between students’ socioeconomic status (SES) and tolerance of corruption are explained by civic knowledge, authoritarianism and open classroom discussion. This model accounted for 36–43% of the variance within schools, and 87–96% of the variance between schools, across six countries. The socioeconomic gap in tolerance of corruption was mainly present between schools. In addition, students with higher civic knowledge were less tolerant of corruption, partially explained by authoritarianism, while open classroom discussion also had indirect associations with tolerance of corruption. 相似文献
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