The Urban Anthropologist as Flâneur; the Symbolic Pattern of Indonesian Cities

Cities are places full of symbols. In the past decades, Indonesian cities have become the cradle of urban symbolism studies. In this article, the author presents the results of these studies. The cities researched differ tremendously, ranging from the national capital to provincial capitals and small towns; some of them, such as Jakarta, are purely colonial in origin, while others are more or less traditional in character. Some of them have a top-down symbolic structure, largely the product of government activities, while others have symbolic configurations which have a more grassroots character and are based in the religious domain. The methodological aspect of urban symbolism fieldwork is explored by the introduction of the concept of flâneur

Advancing Alternative Analysis: Integration of Decision Science.

Decision analysis-a systematic approach to solving complex problems-offers tools and frameworks to support decision making that are increasingly being applied to environmental challenges. Alternatives analysis is a method used in regulation and product design to identify, compare, and evaluate the safety and viability of potential substitutes for hazardous chemicals.Assess whether decision science may assist the alternatives analysis decision maker in comparing alternatives across a range of metrics.A workshop was convened that included representatives from government, academia, business, and civil society and included experts in toxicology, decision science, alternatives assessment, engineering, and law and policy. Participants were divided into two groups and prompted with targeted questions. Throughout the workshop, the groups periodically came together in plenary sessions to reflect on other groups' findings.We conclude the further incorporation of decision science into alternatives analysis would advance the ability of companies and regulators to select alternatives to harmful ingredients, and would also advance the science of decision analysis.We advance four recommendations: (1) engaging the systematic development and evaluation of decision approaches and tools; (2) using case studies to advance the integration of decision analysis into alternatives analysis; (3) supporting transdisciplinary research; and (4) supporting education and outreach efforts

Estrogen-Mimicking Cellular Mechanism and Toxicologic Developmental Effects of BPA Derivatives

Undergraduate Basi

The Urban Anthropologist as Flâneur; the Symbolic Pattern of Indonesian Cities

Cities are places full of symbols. In the past decades, Indonesian cities have become the cradle of urban symbolism studies. In this article, the author presents the results of these studies. The cities researched differ tremendously, ranging from the national capital to provincial capitals and small towns; some of them, such as Jakarta, are purely colonial in origin, while others are more or less traditional in character. Some of them have a top-down symbolic structure, largely the product of government activities, while others have symbolic configurations which have a more grassroots character and are based in the religious domain. The methodological aspect of urban symbolism fieldwork is explored by the introduction of the concept of flâneur

Performance Evaluation and Modeling of HPC I/O on Non-Volatile Memory

HPC applications pose high demands on I/O performance and storage capability. The emerging non-volatile memory (NVM) techniques offer low-latency, high bandwidth, and persistence for HPC applications. However, the existing I/O stack are designed and optimized based on an assumption of disk-based storage. To effectively use NVM, we must re-examine the existing high performance computing (HPC) I/O sub-system to properly integrate NVM into it. Using NVM as a fast storage, the previous assumption on the inferior performance of storage (e.g., hard drive) is not valid any more. The performance problem caused by slow storage may be mitigated; the existing mechanisms to narrow the performance gap between storage and CPU may be unnecessary and result in large overhead. Thus fully understanding the impact of introducing NVM into the HPC software stack demands a thorough performance study. In this paper, we analyze and model the performance of I/O intensive HPC applications with NVM as a block device. We study the performance from three perspectives: (1) the impact of NVM on the performance of traditional page cache; (2) a performance comparison between MPI individual I/O and POSIX I/O; and (3) the impact of NVM on the performance of collective I/O. We reveal the diminishing effects of page cache, minor performance difference between MPI individual I/O and POSIX I/O, and performance disadvantage of collective I/O on NVM due to unnecessary data shuffling. We also model the performance of MPI collective I/O and study the complex interaction between data shuffling, storage performance, and I/O access patterns.Comment: 10 page

NAS: The first year

Discussed are the capabilities of NASA's Numerical Aerodynamic Simulation (NAS) Program and its application as an advanced supercomputing system for computational fluid dynamics (CFD) research. First, the paper describes the NAS computational system, called the NAS Processing System Network, and the advanced computational capabilities it offers as a consequence of carrying out the NAS pathfinder objective. Second, it presents examples of pioneering CFD research accomplished during NAS's first operational year. Examples are included which illustrate CFD applications for predicting fluid phenomena, complementing and supplementing experimentation, and aiding in design. Finally, pacing elements and future directions for CFD and NAS are discussed