垃圾短信治理对策研究

近年来,垃圾短信已成为社会公害,并引起了社会各界的广泛关注.造成垃圾短信泛滥成灾的主要原因是立法不完善、对垃圾短信监控和打击不力、部分民众法制意识淡薄.因此,要有效遏制垃圾短信,就必须完善有关短信业务的立法,强化电信运营商、信息服务业务经营者对手机短信的监控责任,全面推行手机号码实名制,加大对垃圾短信行为的监管和打击力度,发挥行业协会的自律作用,加强法制宣传教育.     

中国高端商业杂志广告诉求特点的内容分析——以《环球企业家》为例

中国的商业杂志已经成为20世纪中国走向全球化、世界了解中国的重要媒体,同时在新媒体对媒介市场的瓜分下,商业杂志广告无疑面临着巨大的机遇和挑战。以《环球企业家》2002-2006年的1059个商业广告为样本进行内容分析。     

《蜗居》的双重言说和意识形态策略解码

《蜗居》借双重言说和意识形态策略,在暴露＂幸福＂＂小三＂的生活中对＂社会道德＂进行遮蔽,温情脉脉地卸除了男性对于家庭的道德责任,是一种崇尚彻头彻尾的＂堕落美学＂,是坏的大众文化文本,其本质是＂美学的堕落＂。     

21世纪新媒体文化语境下的中国微型诗与短信

从诗体重建和诗歌传播方式重建的角度探讨了微型诗与＂第五媒体＂——短信结合的必然性及其缺陷,研究了中国微型诗的兴起及其在21世纪与短信这一新兴诗歌传播方式的结合,对于当下比较艰难的诗体建设具有较大的借鉴意义,以期为新诗建设提供一点启发和思考。     

Using the integrative model of behavioral prediction to understand college students’ STI testing beliefs,intentions, and behaviors

ABSTRACT

Objectives: To identify salient behavioral determinants related to STI testing among college students by testing a model based on the integrative model of behavioral (IMBP) prediction. Participants: 265 undergraduate students from a large university in the Southeastern US. Methods:Formative and survey research to test an IMBP-based model that explores the relationships between determinants and STI testing intention and behavior. Results: of path analyses supported a model in which attitudinal beliefs predicted intention and intention predicted behavior. Normative beliefs and behavioral control beliefs were not significant in the model; however, select individual normative and control beliefs were significantly correlated with intention and behavior. Conclusions: Attitudinal beliefs are the strongest predictor of STI testing intention and behavior. Future efforts to increase STI testing rates should identify and target salient attitudinal beliefs.     

Decoding Basic and Non-basic Facial Expressions and Depressive Symptoms in Late Childhood and Adolescence

This study examined the relationship between decoding nonverbal cues and depressive symptoms in a general school population of 606 children and adolescents (9–15 years). The focus was on the perceived intensity of several emotions in both basic and non-basic facial expressions. The perceived intensities of anger and joy in low intensity facial expressions were related to depression. The higher the perceived intensity of anger the more depressed adolescents were, whereas the reversed effect was found for the perception of joy, but only in girls. These results suggest that the development of decoding biases in low intensity facial expressions may be useful for understanding the development of individual and gender differences in depression during adolescence.

Age and Gender Differences in Decoding Basic and Non-basic Facial Expressions in Late Childhood and Early Adolescence

This study examined age and gender differences in decoding nonverbal cues in a school population of 606 (pre)adolescents (9–15 years). The focus was on differences in the perceived intensity of several emotions in both basic and non-basic facial expressions. Age differences were found in decoding low intensity and ambiguous faces, but not in basic expressions. Older adolescents indicated more negative meaning in these more subtle and complex facial cues. Girls attributed more anger to both basic and non-basic facial expressions and showed a general negative bias in decoding non-basic facial expressions compared to boys. Findings are interpreted in the light of the development of emotion regulation and the importance for developing relationships.

硬件资源消耗少的IMDCT分解算法

提出一种新的改进离散余弦反变换(IMDCT)分解算法,把变换长度为N点的IMDCT分解为一对N/4点的IV-型离散余弦变换(DCT-IV/DCT-IV)。该变换的实现可以共享部分资源,从而减少所需的硬件。与已有的一些IMDCT快速算法相比,新的分解算法计算效率提高了3倍;硬件实现减少了1个锁存器(20%)、4个加法器(44%)和3个乘法器(50%)。设计相应的IMDCT硬件加速器并应用于AC-3音频的实时解码,验证了该算法的实用性。     

相位旋转的速率为2的空时分组码

速率为2的空时分组码(R2-STBC)能达到全速率全分集,然而其译码复杂度与调制阶数的平方成正比。为了降低译码复杂度,提出了一种基于相位旋转的、速率为2的空时分组码(PR-R2-STBC),发送端根据反馈信息将部分发送信号旋转一定的角度,实现了信号在传输过程中两两正交,从而使得其译码复杂度与调制阶数成正比。仿真结果显示,与R2-STBC相比,该编码仅需反馈7 bit就极大地降低了译码复杂度。     

基于IDMEF的大规模协同IDS架构

为了实现IDS系统的分布化、协同化和标准化,入侵检测消息交换格式(IDMEF)相关标准已被广泛地应用到IDS领域中。该文讨论了一种基于IDMEF标准的大规模协同IDS构架,对基于Prelude框架和开发包的IDS协同系统进行了分析、设计和实现,并研究了该架构在CERNET网络中的部署和应用方法。经初步应用证明,该系统可以基本满足需求,达到了IDS的分布化、协同化和标准化的要求。