Anthology and Absence: The Post-9/11 Anthologizing Impulse

The decade after the attacks of 9/11 and the fall of the World Trade Center saw a proliferation of New York-themed literary anthologies from a wide range of publishers. With titles like Poetry After 9/11, Manhattan Sonnet, Poems of New York, Writing New York, and I Speak of the City, these texts variously reflect upon their own post-9/11 plurivocality as preservative, regenerative, and reconstructive. However, the work of such anthologies is more complex than filling with plurivocality the physical and emotional hole of Ground Zero. These regional collections operate on the dilemma of all anthologies: that between collecting and editing. Every anthology, and every anthologist, negotiates the relationship between what is present and what is missing. In light of some of the emerging and established scholarship on the history of the English-language anthology, this article reads closely the declarative paratexts and the silent but equally powerful canonical choices of several different post-9/11 poetry anthologies. In so doing, the article comes to suggest the ways the anthology’s necessary formal incorporation of absence and presence, rather than its plurivocality alone, connects collections of New York’s literature to the fraught discourse of memorialization and rebuilding at the site of the World Trade Center

NSI directed to continue SPAN's functions

During a series of network management retreats in June and July 1990, representatives from NASA Headquarters Codes O and S agreed on networking roles and responsibilities for their respective organizations. The representatives decided that NASA Science Internet (NSI) will assume management of both the Space Physics Analysis Network (SPAN) and the NASA Science Network (NSN). SPAN is now known as the NSI/DECnet, and NSN is now known as the NSI/IP. Some management functions will be distributed between Ames Research Center (ARC) and Goddard Space Flight Center (GSFC). NSI at ARC has the lead role for requirements generation and networking engineering. Advanced Applications and the Network Information Center is being developed at GSFC. GSFC will lead the NSI User Services, but NSI at Ames will continue to provide the User Services during the transition. The transition will be made as transparent as possible for the users. DECnet service will continue, but is now directly managed by NSI at Ames. NSI will continue to work closely with routing center managers at other NASA centers, and has formed a transition team to address the change in management. An NSI/DECnet working group had also been formed as a separate engineering group within NSI to plan the transition to Phase 5, DECnet's approach to Open System Integration (OSI). Transition is not expected for a year or more due to delays in produce releases. Plans to upgrade speeds in tail circuits and the backbone are underway. The proposed baseline service for new connections is up to 56 Kbps; 9.6 Kbps lines will gradually be upgraded as requirements dictate. NSI is in the process of consolidating protocol traffic, tail circuits, and the backbone. Currently NSI's backbone is fractional T1; NSI will go to full T1 service as soon as it is feasible

The NASA Science Internet: An integrated approach to networking

An integrated approach to building a networking infrastructure is an absolute necessity for meeting the multidisciplinary science networking requirements of the Office of Space Science and Applications (OSSA) science community. These networking requirements include communication connectivity between computational resources, databases, and library systems, as well as to other scientists and researchers around the world. A consolidated networking approach allows strategic use of the existing science networking within the Federal government, and it provides networking capability that takes into consideration national and international trends towards multivendor and multiprotocol service. It also offers a practical vehicle for optimizing costs and maximizing performance. Finally, and perhaps most important to the development of high speed computing is that an integrated network constitutes a focus for phasing to the National Research and Education Network (NREN). The NASA Science Internet (NSI) program, established in mid 1988, is structured to provide just such an integrated network. A description of the NSI is presented

Compactifying String Topology

We study the string topology of a closed oriented Riemannian manifold M. We describe a compact moduli space of diagrams, and show how the cellular chain complex of this space gives algebraic operations on the singular chains of the free loop space LM of M. These operations are well-defined on the homology of a quotient of this moduli space, which has the homotopy type of a compactification of the moduli space of Riemann surfaces. In particular, our action of the 0-dimensional homology of the quotient space on the homology of the free loop space of M recovers the Cohen-Godin positive boundary TQFT.Comment: 55 pages, 7 figure

Cooperative localization for mobile agents: a recursive decentralized algorithm based on Kalman filter decoupling

We consider cooperative localization technique for mobile agents with communication and computation capabilities. We start by provide and overview of different decentralization strategies in the literature, with special focus on how these algorithms maintain an account of intrinsic correlations between state estimate of team members. Then, we present a novel decentralized cooperative localization algorithm that is a decentralized implementation of a centralized Extended Kalman Filter for cooperative localization. In this algorithm, instead of propagating cross-covariance terms, each agent propagates new intermediate local variables that can be used in an update stage to create the required propagated cross-covariance terms. Whenever there is a relative measurement in the network, the algorithm declares the agent making this measurement as the interim master. By acquiring information from the interim landmark, the agent the relative measurement is taken from, the interim master can calculate and broadcast a set of intermediate variables which each robot can then use to update its estimates to match that of a centralized Extended Kalman Filter for cooperative localization. Once an update is done, no further communication is needed until the next relative measurement

Cave Taphonomy

In lieu of an abstract, below is the first paragraph of the paper. Savrda and Lewis Gastaldo define taphonomy as the paleontological subdiscipline which is concerned with the process responsible for any organism becoming part of the fossil record, and how these processes influence information in the fossil record (Gastaldo 1996, 1). Lee Lyman goes on to state that even more so it is the science dealing with the laws of burial or embedding (Lyman l). In this paper taphonomy will be discussed along with its use in cave settings mainly during the Pleistocene era. Mary C. Steiner makes it known that hominids evolved as members of animal communities, not in an ecological vacuum (Stiner 1993, 61). Because of this there are many factors which can influence the appearance of bone remains from the time the animal has died until the time the remains are discovered. Taphonomy is needed to distinguish what exactly happened to the bones. The effects of animal scavenging and early hominid hunting and scavenging are huge factors in creating marks on bones which leave us with a record of what exactly was or was not occurring since the death of the animal/hominid. Another issue that is highly debated is whether or not early humans were hunters or scavengers. This too can be examined through the analysis of remains found at cave sites. John Shea writes, During the last decade both the antiquity and the pale ecological significance of hunting by hominids have been challenged by taphonomic studies (Shea 441 )

Oxidative Transfer Reactions at a Metal-Metal Bond

Strained, three-membered rings were found to undergo oxidative addition to [iPrNDI]Ni2(C6H6) complex [NDI = napthyridine-diimine). Activation of the C-N bond of 1-tosyl-2-vinylaziridine generates a dinickel metallacyclic product. Based on this reactivity, the [iPrNDI]Ni2(C6H6) complex was shown to be a highly active catalyst for rearranging vinylcyclopropanes to cyclopentenes. Notably, 2-phenyl-1-vinylcyclopropane undergoes regioselective activation at the less hindered C–C bond in contrast to the non-catalytic thermal rearrangement. The dinuclear complex was also found to readily rearrange hetero-atom containing cyclopropanes to their linear products. DFT calculations provide insight into the ability of the Ni–Ni bond to stabilize key intermediates and transition states along the catalytic pathway. Hetero-atom abstraction was also observed in the activation of other strained, three-membered rings with the [iPrNDI]Ni2(C6H6) complex. Crystal structures were obtained from the activation of sulfur containing heterocycles and their characteristics are currently being investigated to design catalytic desulfurization reactions