Contrasting Types of Puerto Rican Men Who Have Sex with Men (MSM)

Participants in this study were 182 men of Puerto Rican ancestry who lived in New York City and had sex with other men. They were recruited from various gay- and non-gay-identified environments. Qualitative and quantitative research methods were used to assess the participants' sexual attitudes and behavior. Based upon participants' self-labeling of their sexual behavior, four main groups were identified: straight MSM, bisexual MSM, gay MSM, and drag queens. Although similar in terms of age and the number of members infected with I-W, the four groups differed significantly on socioeconomic (SES), attitudinal, and behavioral parameters. It is postulated that MSM of low SES subscribe to stereotypical "machista" and "marianista" roles, while MSM of comparatively higher SES can feel more independent from those gender role expectations. It is concluded that Puerto Rican MSM are reachable and willing to participate in behavioral studies and behavioral change programs. Behavioral change programs must be sensitive to class and SES, tailored to different subgroups of MSM, and generated by a heterogeneous team that includes members of the target population.     

Profit Seeking vs. Survival Seeking: An Analytical Study of Supplier's Behavior and Buyer's Subsidy Strategy

Supplier default is common in emerging markets. Suppliers under the threat of default have different objectives from profit‐seeking companies. This paper analytically tests how profit‐seeking or survival‐seeking behavior, single‐period or two‐period consideration, and buyer's subsidy influence the supplier's and buyer's final utilities. The results show that under single‐period consideration, the supplier's survival‐seeking strategy in fact drives more start‐ups or small suppliers out of business when the competition becomes severe; under two‐period consideration, no matter which strategy (profit‐seeking or survival‐seeking) the supplier selects, the second‐period price and profit are always higher than those of the first period. Furthermore, we find that providing subsidy is an effective way for buyer to keep suppliers’ competition at a certain level on the behalf of buyer's interest. By numerically estimating the benefits associated with the cost of subsidy, we provide a basis for understanding the cost–benefit analysis of buyer's subsidy strategy.     

竞争与共存:信任网络视阈下政府合法性探析

信任网络是实际存在的一种社会关系,它是维持社会正常运转的纽带。政府合法性是实现有效治理的保证,其本质是民众对政府以信任为基础的遵从。政府与社会信任网络之间存在竞争。政府信义降低,用于公共利益的资本减少,而强制力的使用增加,只能导致政府的可依赖性和合法性衰微,从而其他非制度化信任网络兴起。政府嵌入社会关系,包括培育信义、积累资本、平等融入社会信任网络,是赢得民众支持和实现政府合法性最为理想的途径。     

“公民记者”的媒介素养、社会行动与传播价值

在新浪微博"随手拍照解救乞讨儿童"等一系列微博打拐行动中,"公民记者"的表现引起了社会关注和议论。议论的焦点主要有两个方面:一是"公民记者"的合法性和不足。"公民记者"具有合法性,它体现出公民就社会事务发声、占有媒体话语权的欲望;但同时,其媒介素质也亟待提高,如不具备专业性可能成为社会隐患,也可能危及自身安全。二是"公民记者"的影响力和传播价值。"公民记者"影响范围有限,需要借助舆论领袖和权威媒体推动;其传播价值在于突破了传统的议程设置,凸现民众对热点的关注。     

程序设计课程建设与层级竞赛式教学模式

教学模式是课程建设的重要组成部分,程序设计课程是实践应用性较强的课程,根据课程的特点阐述了层级竞赛式教学模式在程序设计课程教学中的应用。结果表明,该模式适合创新应用型人才的培养,能有效促进教学改革、提高教学质量、完善课程体系,能实现课程建设的最终目标,为同类课程的建设和教学模式改革提供了借鉴。     

云计算经济研究综述

虽然云计算已经成为ICT业界乃至信息技术应用各领域的热门话题,以云计算天然的平台、跨境等为主要特征的商业服务模式也必将对经济社会及互联网发展等产生深远影响,但学术界对云计算展开的经济研究仍然不多,对云计算服务及应用所谓平台现象的经济研究更是屈指可数。本综述着眼于云计算经济研究特别是产业组织研究,重点在于力图把握云计算经济发展脉络,探讨在云计算平台经济研究中引入双边市场理论、新贸易理论等并进而开辟新交叉研究的可能。正是基于这一目的,本文就云计算服务商业策略、对经济增长的影响、定价、平台竞争及国际贸易等,对近期研究文献进行了综述。     

性别差异视角下证券投资行为分析--来自第三届新浪财经投资顾问大赛的证据

社会普遍认为女性不适合参与金融投资,女性专业投资人的投资能力亦不如男性。本文利用新浪财经第三届投资顾问大赛的数据对证券投资行为的性别差异进行实证分析。研究发现,男女选手总收益是没有显著差异的,而短线交易频次和较长时期（三个月）的活跃度都有显著的性别差异,说明男女投资顾问的投资能力相当,没有孰优孰劣,而二者的投资风格是有差异的,具有互补性。证券公司应放弃偏见和传统观念,充分肯定并重视女性投资顾问的价值,提供更好的职业平台和发展机会,以便发挥其作用,同时女性投资顾问也应树立自信心。     

基于专利计量的广东高水平大学科研竞争力评价研究

文章采用专利计量方法,对广东七所建设中的高水平大学的科研竞争力进行评价研究.项目研究主要从专利申请数量、年代分布、有效数、领域分布、专利转化率、被引率等方面进行多维探讨,最后对高校科研水平提升、科研评价体系的完善提出了相应建议.     

广告媒介下两种产品竞争与扩散模型研究

本文基于巴斯模型在非垄断情形所遇到的产品扩散问题,提出了在广告媒介下两种产品的竞争与扩散模型,并对不同情况下产品竞争扩散过程进行了经济分析,推广了单产品巴斯扩散模型.为模拟和预测动态市场结构演变提供了理论依据.     

论清代章学诚“三位一体”的治史之道

清乾嘉时期考据之风兴盛,章学诚作为学术上违逆时风、自成一脉的异类,在时人眼里堪称"大逆不道"。中西文化的主流在清末豁然交汇与碰撞,生成了许多引人入胜的"暗合",结局往往是本欲张目国学却反被西学俘获。然而,在不少中西学者那里,章学诚的著作是唯一一部在几种意义上都真正可称"历史哲学"的作品。尤其是他"三位一体"的治史之道("训诂章句"、"考求名物"、"疏通义理",强调"取三者而兼用之"),在所谓正统史学的桎梏中,明珠暗投却又独树一帜,在本土文化的语境内,将传统史学研究上升到了一个新的境界。尽管章氏学说曾一度引起学界关注,然而自清末以来,国内世事变迁、学术沉浮,其学术价值并未得到真正彰显,他的学说对于当代史学研究仍有鲜活的生命力,并在创新的层面上促使当下学界保持警醒与反思。