宽带数字下变频的高效实现方法研究

针对软件无线电接收机中数字下变频的特点,提出了一种合理的基于FPGA实现宽带数字下变频的方案,即分级实现以降低抗混叠滤波器的阶数;并且每级采用不同算法实现滤波抽取以占用不同资源,从而实现FPGA总体资源的合理、高效利用。另外,论述了一种适合FIR抽取滤波器的算法——时钟选择运算法,并通过Altera公司的EP2S60F484C4对该算法进行了测试,验证了它的高效性。     

论慧超旅行巨著《往五天竺国传》

慧超是唐代著名的佛教学者，也是一个伟大的宗教旅行家。文章从文学、史学及旅游学三方面评价了其旅游巨著《往五天竺国传》的创作经历及学术价值。     

基于FPGA的多功能实验板的设计与实现

设计和实现了一个以Altera FPGA的Cyclone件EP1C6Q240C8核心的多功能实验板．它分为核心板和扩展板，用户可以结合QuartusⅡ集成开发环境，使用vHDL语言、Verilog HDL语言或原理图，进行编辑、综合和仿真，通过本实验开发板加载配置并进行设计验证，经过测试验证了实验板的可行性和稳定性，能够满足教学和科研的需要．     

中国特色之路——党的领导集体对中国特色社会主义的贡献

中国特色社会主义是中国共产党对社会主义理论和道路的创新。中国共产党人坚持把马克思主义基本原理与中国的实际相结合，逐步开创出一条中国特色社会主义的强国之路，取得了令世人瞩目的成就。在这个过程中，中国共产党人始终坚持解放思想、实事求是，既勇于实践，又勇于理论创新，带领全国各族人民，不断推动中国社会主义事业向前发展。     

陈望道的办刊实践和新闻教育思想

陈望道是一位对中国学术事业发展卓有贡献的学者、教育家。他的一生基本上在复旦大学度过．他对复旦大学的贡献很大，其中之一便是把复旦的新闻院系建成了中国新闻院系中历史最悠久、唯一薪火不断的院系。陈望道早期从事办刊物、开书铺的实践，对他新闻教育思想的形成有着很大的关联性。他是复旦大学新闻系的创办者之一，他的新闻教育思想集中体现在由他确定的系铭——“好学力行”四个字上。好学力行，成了复旦大学新闻教育的优良传统和教育目标。陈望道对复旦新闻系所作的开拓性建设，实际上也是对我国新闻教育的建设性贡献。     

揭开千古人豪刘伯温与俞源的神秘面纱——刘基为俞源村设计太极星象真伪考辩

本文从刘基政治生涯的特定历史背景及俞源的地质、地貌、水文地质等方面对刘基为俞源村设计、建造太极星象说的观点进行驳斥，把刘基从神坛位置上请到了武义的地面人间，揭开了刘基与武义神秘莫测的面纱。刘基及其在武义留下的“刘基文化”是一笔不可多得的宝贵财富，在当时、今天乃至将来，都将在政治、经济、文化、社会生活、民俗风情等领域产生深远的影响。     

“…and they are really lying”: Clean evidence on the pervasiveness of cheating in professional contexts from a field experiment

We investigate the pervasiveness of lying in professional contexts such as insurance fraud, tax evasion and untrue job applications. We argue that lying in professional contexts share three characterizing features: (1) the gain from the dishonest behavior is uncertain, (2) the harm that lying may cause to the other party is only indirect and (3) lies are more indirect lies by action or written statements. Conducted as a field experiment with a heterogenous group of participants during a University “Open House Day”, our “gumball-machine-experiment” provides field evidence on how preferences for lying are shaped in situations typically found in professional contexts which we consider to be particularly prone to lying behavior compared to other contexts. As a key innovation, our experimental design allows measuring exact levels of cheating behavior under anonymous conditions. We find clean evidence that cheating is prevalent across all sub groups and that more than 32% of the population cheats for their own gain. However, an analysis of the cheating rates with respect to highest educational degree and professional status reveals that students cheat more than non-students. This finding warrants a careful interpretation of generalizing laboratory findings with student subjects about the prevalence of cheating in the population.     

Social Work Field Educators' Views on Student Specific Learning Needs

Each year a significant proportion of students withdraw from placement in time to avoid penalty, while others fail. This article reports on a small field education research project that identified common learning issues for first placement students. Eighteen experienced supervising field educators (FEs), participated in semi structured focus groups, and identified repeat areas of difficulty in student learning that they had managed as supervisors. They also identified strategies that had been efficacious in supporting student learning. The research undertaken in 2010–2011 identified three specific themes relating to difficulties in student learning: specific student characteristics that required additional support; the university/FE partnership; student proficiency in using supervision. The findings suggest that a students' right to privacy must be considered in the provision of educational support, and that support is most effective when there is a strong partnership between the FE and university. In addition, further development of field education pedagogy may be needed to embed theory and skills related to the use of supervision and reflective learning.     

The Integration of Personal and Professional Selves: Developing Students' Critical Awareness in Social Work Practice

How social work students incorporate personal and professional selves in the contexts of field education represents a cornerstone of effective and sustainable practice. This paper presents a qualitative component of a study that tracked 15 third-year bachelor of social work students across their first field placement to document their use of self, critical reflections and experiential learning. The project examined students' assessed ‘use of self’ assignments to understand their capacity for and development of critical awareness across this placement. Students were most articulate in being able to identify stressful situations that arose from placement in terms of what they were thinking (mind) and feeling (emotion) and to a much lesser extent to what they were sensing (body). Over time, students demonstrated a growing critical awareness to better identify and respond to their self-reported tensions. The findings provide developmental insights into how students integrate personal and professional selves and potentially shift from reflective and reflexive practices to incorporating praxis in their work. Through considering the linkages between self and practice, this paper explores student experiences whilst on placement and the associated developmental tasks of critical awareness.     

成都市P2P网贷平台的发展现状分析

采用网络信息收集和实地走访相结合的方式首次对成都市P2P网贷平台的发展情况进行了研究。统计分析表明,成都市的P2P网贷平台还处在发展的初级阶段,离真正基于互联网技术的纯线上平台还有很大距离,具有竞争优势的公司屈指可数。为了更好促进成都市互联网金融的健康发展,建议不但要建立统一的P2P网贷平台交易信息系统,提高互联网金融市场的透明度,还要严格P2P网贷平台的市场准入,防范区域性金融风险,同时加强基础建设,优化互联网金融发展环境。