Advanced detectors and signal processing

Continued progress is reported toward development of a silicon on garnet technology which would allow fabrication of advanced detection and signal processing circuits on bubble memories. The first integrated detectors and propagation patterns have been designed and incorporated on a new mask set. In addition, annealing studies on spacer layers are performed. Based on those studies, a new double layer spacer is proposed which should reduce contamination of the silicon originating in the substrate. Finally, the magnetic sensitivity of uncontaminated detectors from the last lot of wafers is measured. The measured sensitivity is lower than anticipated but still higher than present magnetoresistive detectors

Art, Race, Space

poster abstractArt, Race, Space is a collaborative research project that takes as its starting point E Pluribus Unum, a public art installation proposed for the Indianapolis Culture Trail by renowned artist Fred Wilson that was cancelled in 2011 due to controversy surrounding Wilson’s appropriation of a freed slave figure from the Soldiers and Sailors Monument. Art, Race, Space” goes beyond examining the visual legacies of racial bondage to explore how the public responses to sculptures, memorials, and archaeology reveal our society’s faultlines of race and inequality. Building on the ideas about race, class, visual culture, and democratic debate that emerge from the Indianapolis project, the faculty have designed a multifaceted program to advance scholarship and promote civic dialogue about these significant issues. The faculty members organized an interdisciplinary symposium in January, 2013. Supported by an IAHI grant, the symposium explored the complicated relationships between art, race, and civic space with presentations by Wilson, community representatives who supported and opposed the sculpture, and scholars from a variety of disciplines who examined historical and cultural contexts of the controversy that had revealed Indianapolis’ longstanding racial and class tensions. The dialogue was expanded with the presentation of historical and contemporary examples from other parts of the United States. In order to encourage public dialogue, the symposium provided opportunities for audience members and presenters to engage in conversations, and it deployed social media (Twitter and Facebook) to encourage broader participation. The project's goal is to further scholarship and encourage public conversation on race and materiality. To this end the faculty have created a website, a Facebook page, Twitter account, and are working on an open-access curriculum to support dialogue in schools and informal learning settings about the complex issues of art, race, and representation. The faculty are also collaborating on academic publications, including selected proceedings and an article on the symposium's "hybrid discourse" that combined university and community resources, expertise, and communication practices and brought together diverse voices in constructive conversation about the challenging issues surrounding E Pluribus Unum

Recent Cases

Laurence M. Hamric The instant decision demonstrates the inability of the Court, on its own or with the meager guidance provided by Congress, to discern a clear standard by which to measure the propriety of union organizational activity in light of current federal labor and antitrust law. Faced with a fact pattern that did not embody an apparent anticompetitive intent, a classic conspiracy between labor and non-labor entities, or activity clearly unrelated to the legitimate union interest in achieving better wages and working conditions, the Court was forced to abandon the clear showing test of Pennington, the intimately related test of Jewel Tea\u27 and, perhaps, even the Allen Bradley doctrine. ============================= William G. Scott By extending federal jurisdiction to encompass all robbery and extortion potentially affecting interstate commerce, the instant decision not only reflects, but substantially contributes to, the increasing federalization of intrastate crime under the commerce clause. In light of the decision\u27s broad rationale, the case may portend virtually unlimited expansion of federal jurisdiction into the field of crime control. At the very least, the decision constitutes authority for extending the jurisdictional range of other affecting commerce statutes to encompass all conduct potentially affecting commerce. It is difficult to conceive of any criminal activity, no matter how localized, that remains beyond the scope of the instant rationale. =========================== Mitchell M. Purvis The instant decision, relying on one side of conflicting precedent from other circuits, does little to reconcile the divergent answers to the issue raised by the Hayden caveat: what limits, if any, on searches and seizures should be developed to replace the discredited categorizations of the mere evidence rule. The Bennett decision,considering whether an item that possessed the requisite characteristics for protection under the privilege against self-incrimination consequently was proscribed as an object of a reasonable search and seizure, began a series of opinions obscuring the focus of this issue by failing to recognize that the amendments jointly protect overlapping substantive values through procedurally distinct mechanisms. =========================== George M. Kryder, III The instant court attempted to resolve the tension between these interests by permitting rejection of the entire agreement only after a substantial showing that continued operations would lead to collapse of the business. The court then would require a debtor-in-possession to bargain with the incumbent employees. A better approach would be to permit rejection of only those portions of the collective bargaining agreement that the court finds onerous and burdensome, while leaving in force the remaining portions of the agreement upon which the employees have relied. Such an analysis would afford employees greater protection than merely imposing an obligation to bargain, while simultaneously allowing the debtor-in-possession to renegotiate the burdensome provisions of the old agreement. ================================ Richard Michael Pitt The instant court recognized at the outset that the proper extraterritorial application of the securities laws was not to be found in the language of the acts. Neither did the court consider the SEC\u27s disclaimer of the applicability of registration requirements to be controlling. Rather, the court looked to case law and foreign relations policy in determining subject matter jurisdiction. The court analyzed, one at a time, the jurisdictional bases relied upon by the lower court. Considering first the defendants\u27 activities within the United States, the court noted its holding in IT v. Vencap, Ltd., that the United States was not to be a breeding ground for fraud

Report on Archaeological Investigations Conducted at the St. Mary's Site (18AP45), 107 Duke of Gloucester Street, Annapolis, Maryland, 1987-1990

In celebration of the 250th anniversary of the birth of Charles Carroll of Carrollton, Archaeology in Annapolis was invited to excavate the Carroll House and garden on 107 Duke of Gloucester Street in Annapolis, Maryland. The site, named the St. Mary's Site (18AP45) for the Catholic church on the property, is currently owned by the Redemptorists, a Roman Catholic congregation of priests and brothers who have occupied the site since 1852. Prior to the Redemptorists' tenure, the site was owned by the Carroll family from 1701-1852 and is perhaps best known as the home of Charles Carroll of Carrollton (1737-1832), signer of the Declaration of Independence. Excavations at the site were conducted during four consecutive summer seasons from 1987-1990. The investigation focused on three research questions. The first line of inquiry were questions surrounding the dating, architectural configuration, and artifact deposits of the "frame house," a structure adjoining the west wall of the brick Carroll House via a "passage" and later a three story addition. The frame house was partially demolished in the mid-nineteenth century but the construction was thought to pre-date the brick portion of the house. The second research question was spurred by documentary research which indicated that the property might have been the location of Proctor's Tavern, a late 17th-century tavern which served as the meeting place of the Maryland Provincial Assembly. Archaeological testing hoped to determine its location and, if found, investigate Annapolis' early Euro-American occupation. The third research question focused on the landscape of the site as it was shaped by its occupants over the past three hundred years. The research questions included investigating the stratigraphy, geometry, and architectural and planting features of Charles Carroll of Carrollton's terraced garden built during the 1770s, and investigating the changes to the landscape made by the Redemptorists in the nineteenth and twentieth centuries. While no structural evidence associated with Proctor’s Tavern was uncovered during limited excavations along Spa Creek, the historic shore of Spa Creek was identified, buried beneath deep fill deposits laid down during construction of the Carroll Garden. Features and deposits associated with this period likely remain intact in a waterlogged environment along the southeastern sea wall at the St. Mary’s Site. Evidence of extensive earth moving by Carroll is present in the garden and was identified during excavation and coring. This strongly suggests that the garden landscape visible at the St. Mary’s Site is the intact Carroll Garden, which survives beneath contemporary and late nineteenth century strata. The extant surviving garden should be considered highly sensitive to ground-disturbing activities, and is also highly significant considering demonstrable associations with the Carroll family. Other garden-related features were also discovered, including planting holes, and a brick pavilion or parapet located along Spa Creek to the south of the site. The Duke of Gloucester Street wall was shown to be associated with the Carroll occupation of the site. Finally, intensive archaeological research was directed at the vicinity of a frame house constructed and occupied by the Carrolls to the east of the existing brick house, which was replaced by the Redemptorists in the nineteenth century with a greenhouse. These superimposed buildings were documented in detail and remain highly significant features at the St. Mary’s Site

Quantitative Observation of Magnetic Flux Distribution in New Magnetic Films for Future High Density Recording Media

International audienceOff-axis electron holography was used to observe and quantify the magnetic microstructure of a perpendicular magnetic anisotropic (PMA) recording media. Thin foils of PMA materials exhibit an interesting up and down domain configuration. These domains are found to be very stable and were observed at the same time with their stray field, closing magnetic flux in the vacuum. The magnetic moment can thus be determined locally in a volume as small as few tens of cubic nanometers

Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet.

The question of how, and how fast, magnetization can be reversed is a topic of great practical interest for the manipulation and storage of magnetic information. It is generally accepted that magnetization reversal should be driven by a stimulus represented by time-non-invariant vectors such as a magnetic field, spin-polarized electric current, or cross-product of two oscillating electric fields. However, until now it has been generally assumed that heating alone, not represented as a vector at all, cannot result in a deterministic reversal of magnetization, although it may assist this process. Here we show numerically and demonstrate experimentally a novel mechanism of deterministic magnetization reversal in a ferrimagnet driven by an ultrafast heating of the medium resulting from the absorption of a sub-picosecond laser pulse without the presence of a magnetic field

Is international agricultural research a global public good? : The case of rice biofortification

The status of international agricultural research as a global public good (GPG) has been widely accepted since the Green Revolution of the 1960s and 1970s. While the term was not used at the time of its creation, the Consultative Group on International Agricultural Research (CGIAR) system that evolved at that time has been described as a 'prime example of the promise, performance and perils of an international approach to providing GPGs'. Contemporary literature on international agricultural research as a GPG tends to support this view and focuses on how to operationalize the concept. This paper adopts a different starting point and questions this conceptualization of the CGIAR and its outputs. It questions the appropriateness of such a 'neutral' concept to a system born of the imperatives of Cold War geopolitics, and shaped by a history of attempts to secure its relevance in a changing world. This paper draws on a multi-sited, ethnographic study of a research effort highlighted by the CGIAR as an exemplar of GPG-oriented research. Behind the ubiquitous language of GPGs, 'partnership' and 'consensus', however, new forms of exclusion and restriction are emerging within everyday practice, reproducing North-South inequalities and undermining the ability of these programmes to respond to the needs of projected beneficiaries