Sleep in Mexican-American Adolescents: Social Ecological and Well-Being Correlates

A burgeoning body of research documents links between sleep and adjustment in adolescence, but little is known about the role of the social ecology in promoting healthful sleeping habits. This study was aimed at identifying the socio-cultural correlates of adolescents’ sleep, including average nighttime sleep duration, average daytime napping, and night-to-night variability in sleep duration and assessing the links between these dimensions of sleep and adjustment in Mexican-American youth. Participants were 469 Mexican-American adolescents (50.5% female) and their mothers and fathers. Data on family socio-cultural characteristics and youth adjustment were collected in home interviews with youth, mothers, and fathers, and, during 7 evening telephone interviews, adolescents reported on nighttime sleep and daytime napping for the prior 24-h period. Night-to night variability and napping were more strongly linked to youth depressive symptoms and risky behavior than was average nighttime sleep, whereas nighttime sleep predicted lower body mass index. Lower parental acculturation and fathers’ familism values predicted more healthful sleep, and higher levels of family income, parental education and neighborhood crime predicted less healthful sleep. In addition to illuminating the significance of socio-cultural influences on youths’ sleep, this study contributes to the literature by documenting the multidimensionality of sleep patterns and their links with adjustment in an understudied population.     

税收立宪的价值及其在我国的运用

西方国家通过税收立宪,实现了国家征税权的宪法限制、私有财产权的宪法地位、纳税人权利的宪法保障,最终走上了宪政发展的道路。我国宪法税收条款缺失,没有规定税收法定原则,行政机关成为税收立法权和执行权的中心,使得征税权在我国成为几乎不受约束的权力。我国宪法对于私有财产权与公有财产权实行不平等保护,只规定了纳税人义务内容而没有规定权利内容,导致纳税人权益无从得到切实保障。税收立宪的价值就在于通过限制国家征税权来保障人权并实现宪政。     

中国传统孝文化的内涵特征及社会功能

＂孝文化＂是中国传统道德思想的核心,其内涵从最初的孝亲意识逐渐演化为社会伦理和政治伦理乃至国家的治国方略。在中国历史上发挥着社会稳定、家庭和谐、文化教化等积极的社会功能。分析中国传统孝文化的合理内涵,突出其历史价值,不仅有利于社会主义道德建设,而且对保持国家社会稳定,构建社会主义和谐社会具有重要的借鉴作用。     

“直接证据”真的存在吗? 对直接证据与间接证据分类标准的再思考

我国学界对于间接证据与直接证据的划分标准及概念的表述过于简单化,不利于研究的深入。通过审视直接证据与案件事实联系的"单独性"、"直接性",可以发现"案件事实"的法律性决定了直接证据不可能不经过涵摄或解释的过程而直接与案件事实发生联系,"案件事实"中的主观状态、意思表示要素,也无法被证据"直接"、"单独"地证明。因此,现有的以证据与案件事实的关联方式不同为标准,区分直接证据与间接证据的思路注定是失败的。直接证据与间接证据的区分必须另辟蹊径。     

税改后农村公益事业的现状调查与思考--以湖北省谷城县为个案

农村税费改革后农村公益事业出现了许多新情况新问题,面对新情况新问题,湖北省襄樊市谷城县作出了一些具有启发性的探索,积累了初步经验.     

王枣子三萜成分的研究

目的 研究王枣子中三萜类成分的化学结构.方法 利用层析方法进行成分分离,根据物理化学性质和波谱分析结果对化合物进行结构鉴定.结果 3个五环三萜经鉴定分别为2α,3α-二羟基乌苏酸(Ⅰ)、2α-羟基齐墩果酸(Ⅱ)和齐墩果酸(Ⅲ).结论 成分Ⅰ和Ⅱ在该植物中系首次分得.     

多层螺旋CT在强直性脊柱炎骶髂关节病变分期中的应用价值

目的 探讨多层螺旋CT(multi-slice spiral CT,MSCT)在强直性脊柱炎(ankylosing spondylitis,AS)骶髂关节病变的诊断及分期中的应用价值.方法 回顾性分析82例AS患者骶髂关节的MSCT表现,对其进行分期.结果 82例中,双侧骶髂关节正常9例,单侧受累6例,双侧均受累67例...