
2025年は宇宙経済が6,260億ドルに到達:投機から『1兆ドル市場』への構造的転換が始まった理由
宇宙産業が、かつての「投機的な拡張フェーズ」から「実利と安全保障を核とした執行フェーズ」へと構造的な変革を遂げたことが明らかになった。市場調査会社 Novaspace が発表した第12版「宇宙経済レポート(Space E […]
世界有数の衛星オペレーター。多数の静止軌道(GEO)衛星および中軌道(MEO)衛星を運用し、放送やデータ通信サービスを世界規模で提供している。Starlinkのような大規模低軌道コンステレーションによる電波干渉や市場浸食に対して、規制当局に懸念を表明している。

宇宙産業が、かつての「投機的な拡張フェーズ」から「実利と安全保障を核とした執行フェーズ」へと構造的な変革を遂げたことが明らかになった。市場調査会社 Novaspace が発表した第12版「宇宙経済レポート(Space E […]

2026年1月9日、米連邦通信委員会(FCC)はSpaceXに対し、第2世代(Gen2)Starlink衛星システムの構築・運用において、新たに7,500基の追加配備を承認した。これにより、すでに承認されていた7,500 […]

欧州連合(EU)は、独自の衛星インターネットネットワーク構築に向けて大きな一歩を踏み出した。総額106億ユーロ(約110億ドル)規模のIRIS²(Infrastructure for Resilience, Interc […]
This research revealed both similarities and striking differences in early language proficiency among infants from a broad range of advantaged and disadvantaged families. English-learning infants (n = 48) were followed longitudinally from 18 to 24 months, using real-time measures of spoken language processing. The first goal was to track developmental changes in processing efficiency in relation to vocabulary learning in this diverse sample. The second goal was to examine differences in these crucial aspects of early language development in relation to family socioeconomic status (SES). The most important findings were that significant disparities in vocabulary and language processing efficiency were already evident at 18 months between infants from higher- and lower-SES families, and by 24 months there was a six-month gap between SES groups in processing skills critical to language development.
Over the past decades, the relationship between family socioeconomic status (SES) and academic achievement in school-age children has been well documented. However, the underlying mechanism of how family SES works on academic achievement remains unclear. In this study, we examine the possible role of self-concept in the relationship between SES and school academic achievement among 345 junior high school students in China. The results showed that both family SES and self-concept were significantly associated with the children’s Chinese and mathematics performance, and family SES was also significantly correlated with self-concept. The mediation analysis showed that self-concept partially mediated the relationship between SES and school academic achievement. These findings suggest that interventions targeting self-concept may be an effective way in which to improve children’s school academic achievement.