Best of both worlds or refusal to comply? The rich kids of Tehran on Instagram

ABSTRACT

This article offers a textual analysis and semiotic reading of the Rich Kids of Tehran's (RKOT’s) Instagram page. Contributing to scholarship on Iranian youth media practices, this article interrogates how the RKOT navigate urban and rural space to engage in everyday processes of resistance against global and local systemic oppression. Grounding their visual representations on Instagram in historical and cultural context, the author questions how and when quotidian actions are transformed into political transgressions when posted on social media. This article emphasizes the RKOT's agency in shaping their brand by analyzing representations of gender performance, intertextuality, and national identity on Instagram.     

Using the Information Structure Model to Compare Profile-Based Information Filtering Systems

In the IR field it is clear that the value of a system depends on the cost and benefit profiles of its users. It would seem obvious that different users would prefer different systems. In the TREC-9 filtering track, systems are evaluated by a utility measure specifying a given cost and benefit. However, in the study of decision systems it is known that, in some cases, one system may be unconditionally better than another. In this paper we employ a decision theoretic approach to find conditions under which an Information Filtering (IF) system is unconditionally superior to another for all users regardless of their cost and benefit profiles.It is well known that if two IF systems have equal precision the system with better recall will be preferred by all users. Similarly, with equal recall, better precision is universally preferred. We confirm these known results and discover an unexpected dominance relation in which a system with lower recall will be universally preferred provided its precision is sufficiently higher.     

促进高校体育教师科学研究水平的方法与措施

高校体育教师的生命力来自于体育科学研究。高校体育教师必须与体育科学研究紧密的联系在一起。高校体育科学研究就是以高校体育教育现象和体育教育问题为对象,运用科学研究的原则和方法,探寻体育教学规律及有体育教育途径和方法的科学实践活动.努力提高高校体育教师的体育科学研究水平,有利于提高高校体育教师的整体素质,有利于教育科研的发展,提高教育质量。     

关于科技论文关键词标引的问题与对策

在对关键词进行一般描述的基础上,论述了科技论文关键词标引的意义,分析目前科技论文关键词标引中存在的问题,并提出相应的对策.     

Accurate assessment of the brake torque on a rope-braked cycle ergometer

Sports Engineering - A Monark cycle ergometer is a device globally used in physiological studies to measure the work and energy levels of exercising humans. In this paper a rope-braked cycle...     

对大学生健康教育的思考

根据健康新观念和针对当前大学生存在的各种非健康性表现，阐述大学生健康教育的必要性，并对大学生健康教育问题进行思考和提出建议。     

模拟海拔2000m和3000m高原训练的不同时程对大鼠骨骼肌蛋白质代谢的影响

用低压氧舱模拟海拔2 000 m、3 000 m高原低氧环境对大鼠进行耐力训练,探讨不同海拔高原训练1周及返回平原训练1～2周对大鼠骨骼肌蛋白质代谢及肌糖原和血清睾酮含量的影响.研究发现:海拔2 000 m、3 000 m高原耐力训练导致大鼠骨骼肌蛋白质分解代谢显著加强,肌糖原含量显著提高,并有随高度增加而加强的趋势,但血清睾酮含量无明显变化;返回平原后骨骼肌蛋白质代谢第1周迅速恢复到正常状态,第2周保持稳定,肌糖原含量第1周下降,第2周显著回升,而血清睾酮含量均无明显变化;实验支持高原训练的高度应选择在2 000 m～3 000 m之间、回平原参赛时间应选择在2周左右的观点.