Carnegie Hall 要翻译和音标!

英语翻译
research done a few years ago under auspices of carnegie foundation uncoverd a fact 那个什么research done意思 thanks

1011205:a recent study conducted by Carnegie Mellon University concludes that internet use leads to small but statistically significant increases in misery and loneliness and a decline in overall psychological well-being (American Psychological Association,1998).
想知道的语言点：
1—University concludes that：怎么翻译：concludes that
2—internet use leads to small but statistically significant increases in misery and loneliness：怎么翻译
3—a decline in overall psychological well-being：怎么翻译
1.a recent study conducted by Carnegie Mellon University concludes that
conduct：这里就是进行的意思
vt vi 1.引导,带领,担任指挥2.控制,指导，管理，经营；进行；实施；处理3.传导
vt 1.组织；安排；实施；执行2.[conduct oneself]表现,为人,行为,举止3.指挥(乐队)
Carnegie Mellon University ：卡内基美隆大学
conclude：1.得出结论; 断定;推断出2.决定3.达成，订立，缔结（协定）
这句话的主语是a recent study 后置定语是conducted by Carnegie Mellon University：
由卡内基美隆大学进行的...谓语是concludes
翻译：一项最近由卡内基美隆大学进行的研究得出结论/推断出：
2.internet use leads to small but statistically significant increases in misery and loneliness and a decline in overall psychological well-being ：
small ：adj 轻微的 statistically：adv 统计上地,统计地
significant ：adj1.重要的,重大的,可观的2.有意义的,有用意的3.意味深长的4.有重大意义的；显著
misery：n 1.痛苦,苦恼,苦难2.痛苦的事,不幸 loneliness ：n .孤独,寂寞;人迹罕至
well-being ：n 康乐,安康;福利
a de

brash在这里是什么意思?
The brash,breezy Carnegie style is intact-even the thirties slang is still there.
brash爱词霸解释为:adj.傲慢的；轻率的；易碎的；脆的 n.胃灼热；骤雨；碎片；残枝
貌似没有一个释义在这里适用吖?应该怎样解释呢?