American Chemical Society Symposium: Dynamics and Jamming in Complex Environments; August 19-23, 2012; Philadelphis, PA. USA

美国化学会研讨会：复杂环境中的动力学和干扰；

• 批准号: 1237968
• 负责人: Laura Kaufman
• 金额: $ 0.5万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-05-01 至 2013-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1237968&HistoricalAwards=false
• 关键词: American; Chemical; Society; Symposium; Dynamics

Each of the two annual national meetings of the American Chemical Society includes several symposia in the Physical Chemistry Division. The topics of these symposia represent some of the most exciting areas of physical chemistry and chemical physics research. This year one of these featured symposia is Dynamics and Jamming in Complex Environments. The dynamics of particles in crowded and complex environments is intriguing from fundamental and applied points of view. Indeed, crowding determines particle dynamics in many physical, chemical, and biological systems, especially those far from equilibrium. Examples include liquid-to-solid transitions, dynamics in viscous liquids and particulate systems, and dynamics of biomolecules in living cells. Such physics is also of applied interest: indeed, at stake is our ability to design new materials and predict their static and dynamic properties. Inhomogeneity and lack of periodicity limits the utility of conventional bulk experiments to detail molecular motions in these systems. Moreover, such experiments, as well as direct computational studies, are complicated by the enormous range of dynamics displayed by these systems. Emerging experimental, simulation-based, and theoretical approaches to investigating these complex systems can address questions that have evaded clear answers about the nature of these slow relaxations, broadly termed glassy dynamics, and the glass transition despite decades of effort. The co-organizers of this symposium request funds to help defray registration and travel costs for speakers and poster presenters at this meeting. In particular, these funds will be used primarily for graduate student and postdoctoral presenters. The symposium will bring together diverse scientists: they are diverse in their areas of research, in their chosen experimental and/or theoretical tools, and in their nationality, age, and gender. In particular, members of underrepresented groups have been recruited to participate via presentation of both invited and contributing talks - advertisements featuring such speakers then, in turn, encourage additional participation from members of these groups as attendees and poster presenters at the symposium. The set of invited speakers represent a much broader community than those typically present at conferences on glasses, which tend to focus on either molecular glasses or soft matter or granular systems and do not generally include both experimentalists and theorists. The support requested will broaden the community participating in this symposium and in turn encourage new synergies between researchers in diverse communities. The chief goals of this symposium are (1) exploring the commonalities in the various systems in which crowding is an important determinant of dynamics and (2) continuing to develop a common language with which to discuss glassy behavior.

美国化学学会的两次年度全国会议中的每一次都包括体育化学部的几个研讨会。这些研讨会的主题代表了物理化学和化学物理学研究中最令人兴奋的领域。今年，这些特色专题讨论会之一是在复杂环境中的动态和干扰。在拥挤和复杂的环境中，粒子的动力学从基本和应用的观点引起了人们的吸引力。实际上，拥挤决定了许多物理，化学和生物系统的颗粒动力学，尤其是远离平衡的粒子动力学。例子包括液体到固体过渡，粘性液体和颗粒系统中的动力学以及活细胞中生物分子的动力学。这样的物理学也具有应用的兴趣：的确，危及着我们设计新材料并预测其静态和动态特性的能力。不均匀性和缺乏周期性限制了常规批量实验的实用性，以详细说明这些系统中的分子运动。此外，这些系统显示的大量动力学使此类实验以及直接的计算研究变得复杂。研究这些复杂系统的新兴实验，基于模拟的方法和理论方法可以解决有关这些缓慢放松的性质，广泛称为玻璃状动力学以及尽管努力的玻璃过渡的明确答案的问题。该研讨会的共同组织者要求资金，以帮助在本次会议上为演讲者和海报演讲者支付登记和旅行费用。特别是，这些资金将主要用于研究生和博士后演示者。研讨会将汇集多样的科学家：他们在研究领域，所选的实验和/或理论工具以及其国籍，年龄和性别方面都有多样化。特别是，已经招募了代表性不足的团体成员，以通过介绍受邀和贡献演讲来参与 - 然后，以此类演讲者为特色的广告又鼓励这些团体成员的更多参与，作为在研讨会上作为与会者和海报演讲者。一组受邀的扬声器代表的社区比通常在眼镜上的通常存在的社区更广泛，这些社区倾向于集中于分子眼镜，软物质或颗粒状系统，并且通常不包括实验家和理论家。所要求的支持将扩大参加该研讨会的社区，进而鼓励各种社区研究人员之间的新协同作用。该研讨会的主要目标是（1）探索拥挤是动态重要决定因素的各种系统中的共同点，并且（2）继续开发一种共同的语言来讨论玻璃状行为。