DSS command software update

The modifications, additions, and testing results for a version of the Deep Space Station command software, generated for support of the Voyager Saturn encounter, are discussed. The software update requirements included efforts to: (1) recode portions of the software to permit recovery of approximately 2000 words of memory; (2) correct five Voyager Ground data System liens; (3) provide capability to automatically turn off the command processor assembly local printer during periods of low activity; and (4) correct anomalies existing in the software

Deep Space Communications Complex Command Subsystem Mark IVA

The Deep Space Communications Complex Command Subsystem will require major changes for the Mark IVA era. A description of the subsystem and its assemblies is contained in this article

An elementary educational facility for Albuquerque, New Mexico.

Better teaching depends on better facilities. One of the biggest problems in American education is the cell block principles on which most schools are built. It has been going on for more than one hundred years, ever since children were first separated into classes by age groups. Traditionally every class got its own teacher in its own room and both students and teachers remained in isolation. If the teacher wasn\u27t competent in all subjects, the student suffered. If the students were brighter or slower than the average, they suffered. Today we try to solve these problems by grouping students of similar capabilities together, giving them specialized learning conditions by groups of specialized teachers so to give each child a chance to learn at his own pace. To give him the best knowledge each teacher can provide, we move both children and teachers around, combine classes or split them up, make both teaching and learning really flexible

Trauma and the Credibility Economy: An Analysis of Epistemic Violence and its Traumatic Functions

In this thesis, I argue that the work done in philosophy on epistemic injustice can put pressure on the assumptions driving the work of both trauma theory and rhetorical theory. In addition to arguing how epistemic injustice can reinforce trauma, I argue that epistemic injustice has its own power to traumatize. I refer to this as “epistemic trauma,” or a trauma to one’s ability to know their experience and to make a claim based on this knowledge. Research on epistemic injustice states that when one encounters repeated epistemic injustice, they become less likely to share their experiences at all—they fall into a coerced self-silencing. In the context of trauma, epistemic injustice can take away one’s ability to make sense of their traumatic experience. If they cannot “know” their experience, they cannot speak it. I will differentiate among physical trauma, psychological trauma, and epistemic trauma, which I believe all function in different ways—sometimes in the same traumatic experience. If physical trauma is the literal trauma to one’s body, and psychological trauma is the damage to one’s psyche as a result of this trauma, then epistemic trauma would be the damage to one’s sense that they are able to know and make sense of their experiences, and make a claim based on this experience

Regulating the Privatization of War: How to Stop Private Military Firms from Committing Human Rights Abuses

Private Military Firms (PMFs) have recently stepped in to fill the growing global demand for temporary, highly-specialized military services. These private corporations can be a blessing to their client countries in that they offer many economic, military, and political benefits not ordinarily found in standing armies. However, PMFs fall within a gap in international law, which presumes and prefers a monopolization of force by state actors, thereby leaving no effective way to deal with those PMFs that commit human rights abuses. This Note traces the history of private militaries and the applicable legal standards and argues for a coordinated domestic approach among a handful of countries to legitimize and regulate PMFs

Hazard criteria for wake vortex encounters

A piloted, motion-base simulation was conducted to evaluate the ability of simulators to produce realistic vortex encounters and to develop criteria to define hazardous encounters. Evaluation of the simulation by pilots experienced in vortex encounters confirmed the capability of the simulator to realistically reproduce wake vortex encounters. A boundary for encounter hazard based on subjective pilot opinion was identified in terms of maximum bank angle. For encounter altitudes from 200 to 500 ft (61.0 to 152.4 m), tentative hazard criteria established for visual flight conditions indicated that the acceptable upset magnitude increased nearly linearly with increasing altitude. The data suggest that the allowable upsets under instrument conditions no greater than 50 percent of that allowable under visual conditions

Landing approach evaluation of an integrated CRT display for general aviation aircraft

A flight director adaptable to general aviation aircraft was evaluated for the landing approach task in a twin turbojet business aircraft. The flight director combined aircraft heading, pitch and roll atitude, and ILS (Instrument Landing System) signals into a single picture on a small cathode ray tube (CRT) to give the pilot an integrated picture of the aircraft situation. The display is unique in that it presents the information on a CRT and gives quasi-command signals to the pilot. The particular display investigated was a preproduction version of the Kaiser Model FP-50 flight director. Approaches made with visual references only, with a conventional ILS displacement instrument, and with the CRT display were compared in terms of tracking performance and pilot workload. Tracking performance of three research pilots using the CRT display was superior to that using the conventional ILS instrument and comparable to that under VFR conditions. Pilot workload (based on pilot comments) was not clearly decreased

The Chelation of Metal Ions by Vicibactin, a Siderophore Produced by Rhizobium leguminosarum ATCC 14479

Vicibactin is a small, high-affinity iron chelator produced by Rhizobium leguminosarum ATCC 14479. Previous work has shown that vicibactin is produced and secreted from the cell to sequester ferric iron from the environment during iron-deplete conditions. This ferric iron is then transported into the cell to be converted into ferrous iron. This study uses UV-Vis spectroscopy as well as ion trap-time of flight mass spectroscopy to determine that vicibactin does form a complex with copper(II) ions, however, at a much lower affinity than for iron(III). Stability tests have shown that the copper(II)-vicibactin complex is stable over time. The results of this study show that vicibactin could be used in order to remove copper(II) ions from the soil or other media if they are present in toxic amounts. It also suggests that vicibactin’s purpose for the rhizobia could be expanded to include both copper sequestering and to reduce extracellular copper concentrations to prevent toxicity