Between Commemoration and Living Memory: Symbolic Acts of the Teutonic Knights in Light of Cultural Theory

The present article investigates the function of ritual acts as a form of communication vis-à-vis cultural meaning in the life of the Teutonic Knights. As a condensed form of communal expression, rituals exhibit an acute potential to render present collective identity and shape the lives of the communities that practice them. Such potential is manifest in the institutional arrangement of the Teutonic Order in various forms with particular reference to their dual standing in society, insofar as they drew upon the societal models of the oratores and the bellatores. Particularly relevant to the current study, considerations of cultural historian and social analyst Jan Assmann regarding symbolic acts and collective living memory assist in creating the theoretical framework for the study’s deliberations. With Assmann’s insights in mind, ritual is understood as a communicative vector of cultural meaning – so to speak – of living memory. The analysis then turns to an examination of select representative examples from diverse scenarios in the existence of the Teutonic Knights, thereby taking into account internal, public, and participatory contexts of symbolic moments. The study thus explores how, while rituals can commemorate memorialised events from the past, they are also able to enact the living memory of a collective entity, ultimately claiming that the examined symbolic acts exhibited both communicative and transformative potential.The present article investigates the function of ritual acts as a form of communication vis-à-vis cultural meaning in the life of the Teutonic Knights. As a condensed form of communal expression, rituals exhibit an acute potential to render present collective identity and shape the lives of the communities that practice them. Such potential is manifest in the institutional arrangement of the Teutonic Order in various forms with particular reference to their dual standing in society, insofar as they drew upon the societal models of the oratores and the bellatores. Particularly relevant to the current study, considerations of cultural historian and social analyst Jan Assmann regarding symbolic acts and collective living memory assist in creating the theoretical framework for the study’s deliberations. With Assmann’s insights in mind, ritual is understood as a communicative vector of cultural meaning – so to speak – of living memory. The analysis then turns to an examination of select representative examples from diverse scenarios in the existence of the Teutonic Knights, thereby taking into account internal, public, and participatory contexts of symbolic moments. The study thus explores how, while rituals can commemorate memorialised events from the past, they are also able to enact the living memory of a collective entity, ultimately claiming that the examined symbolic acts exhibited both communicative and transformative potential.The present article investigates the function of ritual acts as a form of communication vis-à-vis cultural meaning in the life of the Teutonic Knights. As a condensed form of communal expression, rituals exhibit an acute potential to render present collective identity and shape the lives of the communities that practice them. Such potential is manifest in the institutional arrangement of the Teutonic Order in various forms with particular reference to their dual standing in society, insofar as they drew upon the societal models of the oratores and the bellatores. Particularly relevant to the current study, considerations of cultural historian and social analyst Jan Assmann regarding symbolic acts and collective living memory assist in creating the theoretical framework for the study’s deliberations. With Assmann’s insights in mind, ritual is understood as a communicative vector of cultural meaning – so to speak – of living memory. The analysis then turns to an examination of select representative examples from diverse scenarios in the existence of the Teutonic Knights, thereby taking into account internal, public, and participatory contexts of symbolic moments. The study thus explores how, while rituals can commemorate memorialised events from the past, they are also able to enact the living memory of a collective entity, ultimately claiming that the examined symbolic acts exhibited both communicative and transformative potential

VLBI observations of the Crab nebula pulsar

Observations were made at meter wave-lengths using very long base-line interferometry techniques. At 196.5 MHz no resolution of the pulsar are observed; all the pulse shapes observed with the interferometers are similar to single dish profiles, and all the power pulsates. At 111.5 MHz besides the pulsing power there is always a steady component, presumably due to interstellar scattering. The pulsar is slightly resolved at 111.5 MHz with an apparent angular diameter of 0.07 sec ? 0.01 sec. A 50 percent linear polarization of the time-averaged power is noted at 196.5 MHz; at 111.5 MHz, 20 percent of the total time-averaged power is polarized, 35 percent of the pulsing power is polarized, and the steady component is unpolarized

High resolution observations of Cassiopeia A at meter wavelengths

Very long baseline interferometric (VLBI) observations of the supernova remnant Cassiopeia A, at 74 MHz with a 12,000-wavelength baseline and at 111 MHz with a 18,500-wavelength baseline, are reported. The fringe amplitudes are strongly varying on a time scale of about 15 to 30 minutes. The location of the extra source must lie outside the supernova remnant shell possibly associated with a concentration of emission north of the shell, or lying outside the gap in the northeastern side of the shell. The flux and spectral index deduced for the compact source depend on the assumed size, with a range of 100 Jy to 500 Jy at 74 MHz. If the source is associated with the supernova explosion, it must have been traveling at least 5000 km s/2

Quantum Electronics

Contains reports on three research projects.U. S. Air Force Office of Scientific Research (Contract F44620-71-C-0051)Joint Services Electronics Program (Contract DAAB07-71-C-0300)University of California, Livermore (Subcontract No. 7877409)U. S. Army Research Office - Durham (Contract DAHC04-72-C-0044

Intraneuronal Aβ detection in 5xFAD mice by a new Aβ-specific antibody

<p>Abstract</p> <p>Background</p> <p>The form(s) of amyloid-β peptide (Aβ) associated with the pathology characteristic of Alzheimer's disease (AD) remains unclear. In particular, the neurotoxicity of intraneuronal Aβ accumulation is an issue of considerable controversy; even the existence of Aβ deposits within neurons has recently been challenged by Winton and co-workers. These authors purport that it is actually intraneuronal APP that is being detected by antibodies thought to be specific for Aβ. To further address this issue, an anti-Aβ antibody was developed (MOAB-2) that specifically detects Aβ, but not APP. This antibody allows for the further evaluation of the early accumulation of intraneuronal Aβ in transgenic mice with increased levels of human Aβ in 5xFAD and 3xTg mice.</p> <p>Results</p> <p>MOAB-2 (mouse IgG_2b) is a pan-specific, high-titer antibody to Aβ residues 1-4 as demonstrated by biochemical and immunohistochemical analyses (IHC), particularly compared to 6E10 (a commonly used commercial antibody to Aβ residues 3-8). MOAB-2 did not detect APP or APP-CTFs in cell culture media/lysates (HEK-APP_Sweor HEK-APP_Swe/BACE1) or in brain homogenates from transgenic mice expressing 5 familial AD (FAD) mutation (5xFAD mice). Using IHC on 5xFAD brain tissue, MOAB-2 immunoreactivity co-localized with C-terminal antibodies specific for Aβ40 and Aβ42. MOAB-2 did not co-localize with either N- or C-terminal antibodies to APP. In addition, no MOAB-2-immunreactivity was observed in the brains of 5xFAD/BACE^-/-mice, although significant amounts of APP were detected by N- and C-terminal antibodies to APP, as well as by 6E10. In both 5xFAD and 3xTg mouse brain tissue, MOAB-2 co-localized with cathepsin-D, a marker for acidic organelles, further evidence for intraneuronal Aβ, distinct from Aβ associated with the cell membrane. MOAB-2 demonstrated strong intraneuronal and extra-cellular immunoreactivity in 5xFAD and 3xTg mouse brain tissues.</p> <p>Conclusions</p> <p>Both intraneuronal Aβ accumulation and extracellular Aβ deposition was demonstrated in 5xFAD mice and 3xTg mice with MOAB-2, an antibody that will help differentiate intracellular Aβ from APP. However, further investigation is required to determine whether a molecular mechanism links the presence of intraneuronal Aβ with neurotoxicity. As well, understanding the relevance of these observations to human AD patients is critical.</p

Abnormal cognition, sleep, EEG and brain metabolism in a novel knock-in Alzheimer mouse, PLB1

Peer reviewedPublisher PD

The Role of Public Schools in HIV Prevention: Perspectives from African Americans in the Rural South

Though African American youth in the south are at high risk for HIV infection, abstinence until marriage education continues to be the only option in some public schools. Using community-based participatory research methods, we conducted 11 focus groups with African American adults and youth in a rural community in North Carolina with high rates of HIV infection with marked racial disparities. Focus group discussions explored participant views on contributors to the elevated rates of HIV and resources available to reduce transmission. Participants consistently identified the public schools’ sex education policies and practices as major barriers toward preventing HIV infection among youth in their community. Ideas for decreasing youth’s risk of HIV included public schools providing access to health services and sex education. Policymakers, school administrators, and other stakeholders should consider the public school setting as a place to provide HIV prevention education for youth in rural areas

Design by taking perspectives: How engineers explore problems

Background: Problem exploration includes identifying, framing, and defining design problems and bounding problem spaces. Intentional and unintentional changes in problem understanding naturally occur as designers explore design problems to create solutions. Through problem exploration, new perspectives on the problem can emerge along with new and diverse ideas for solutions. By considering multiple problem perspectives varying in scope and focus, designers position themselves to increase their understandings of the “real” problem and engage in more diverse idea generation processes leading to an increasing variety of potential solutions. Purpose/Hypothesis: The purpose of this study was to investigate systematic patterns in problem exploration in the early design phases of mechanical engineers. Design/Method: Thirty-five senior undergraduate students and experienced designers with mechanical engineering backgrounds worked individually following a think-aloud protocol. They explored problems and generated solutions for two of four randomly assigned design problems. After generating solutions, participants framed and rewrote problem statements to reflect their perspectives on the design problem their solutions addressed. Thematic analysis and a priori codes guided the identification of problem exploration patterns within and across problems. Results: The set of patterns in engineers\u27 problem exploration that emerged from the analysis documents alternative strategies in exploring problems to arrive at solutions. The results provide evidence that engineering designers, working individually, apply both problem-specific and more general strategies to explore design problems. Conclusions: Our study identified common patterns in the explorations of presented problems by individual engineering designers. The observed patterns, described as Problem Exploration Perspectives, capture alternative approaches to discovering problems and taking multiple problem perspectives during design. Learning about Problem Exploration Perspectives may be helpful in creating alternative perspectives on a design problem, potentially leading to more varied and innovative solutions. This paper concludes with an extended example illustrating the process of applying Problem Exploration Perspectives to move between problem perspectives to generate varied design outcomes