1,407 research outputs found
NASA/ESMD Analogue Mission Plans
A viewgraph presentation exploring Earth and its analogues is shown. The topics include: 1) ESMD Goals for the Use of Earth Analogues; 2) Stakeholders Summary; 3) Issues with Current Analogue Situation; 4) Current state of Analogues; 5) External Implementation Plan (Second Step); 6) Recent Progress in Utilizing Analogues; 7) Website Layout Example-Home Page; 8) Website Layout Example-Analogue Site; 9) Website Layout Example-Analogue Mission; 10) Objectives of ARDIG Analog Initiatives; 11) Future Plans; 12) Example: Cold-Trap Sample Return; 13) Example: Site Characterization Matrix; 14) Integrated Analogue Studies-Prerequisites for Human Exploration; and 15) Rating Scale Definitions
Pathophysiology and Treatment of Life-Threatening Angioedema
Angioedema is a potentially lethal swelling of the interstitial space from extravasation of intravascular plasma (Wood, Choromanski, & Orlewicz, 2013). Angioedema may present in any medical setting with a broad range of severity. Angioedema is commonly seen in emergency departments and intensive care units. According to Barbara, Ronan, Maddox, & Warner (2013), “angioedema is of particular importance to anesthesiologists, as it may present at any point in the perioperative period and it may rapidly become life-threatening if it involves airway compromise” (p. 335). Anesthesia professionals may also respond to airway management emergencies throughout the hospital setting and may treat angioedema secondary to anesthetics. Emergency providers and advanced practitioners should be able to recognize the signs and symptoms, differentiate between histaminergic and non-histaminergic, and provide emergent treatment of angioedema in all care settings
Don't Forget About... (Factoring in Everything for Successful Mars Exploration): In Situ Resource Utilization
Using In Situ Resources means reduced transportation requirements from Earth and a larger source of materials than might otherwise be available. Of the many in situ resources available on Mars, perhaps the most valuable is water. One facet of NASA's current Mars Exploration Program is a search for the locations and quantities of water in various forms: Subsurface liquid water aquafers; Surface and subsurface water ice and icy soils - Lineated Valley Fill (LVF), Lobate Debris Aprons (LDAs), Concentric Crater Fill (CCF); Hydrated minerals - Chlorides, Phyllosilicates, Sulfates, etc.; "Average regolith." Access to massive quantities of water could change surface mission concepts of operation and drive site selection. Availability of massive quantities of water could enable or change current assumptions for: Propellant manufacturing; Radiation protection;- "Relaxed" requirements for a closed loop ECLSS (Environmental Control and Life Support System); Crop growth; Improved crew amenities, such as more frequent showers and laundry
A Phobos-Deimos Mission as an Element of the NASA Mars Design Reference Architecture 5.0
NASA has conducted a series of mission studies over the past 25 years examining the eventual exploration of the surface of Mars by humans. The latest version of this evolutionary series of design reference missions/architectures - Design Reference Architecture 5 or DRA-5 - was completed in 2007. This paper examines the implications of including a human mission to explore the moons of Mars and teleoperate robots in various locations, but not to land the human crews on Mars, as an element of this reference architecture. Such a mission has been proposed several times during this same 25 year evolution leading up to the completion of DRA-5 primarily as a mission of testing the in-space vehicles and operations while surface vehicles and landers are under development. But such a precursor or test mission has never been explicitly included as an element of this Architecture. This paper will first summarize the key features of the DRA-5 to provide context for the remainder of the assessment. This will include a description of the in-space vehicles that would be the subject of a shakedown test during the Mars orbital mission. A decision tree will be used to illustrate the factors that will be analyzed, and the sequence in which they will be addressed, for this assessment. The factors that will be analyzed include the type of interplanetary transfer orbit (opposition class versus conjunction class), the type of parking orbit (circular versus elliptical), and the type of propulsion technology (high thrust chemical versus nuclear thermal rocket). The manner in which each of these factors impacts an individual mission will be described. In addition to the direct impact of these factors, additional considerations impacting crew health and overall programmatic outcomes will be discussed. Numerical results for each of the factors in the decision tree will be grouped with derived qualitative impacts from crew health and programmatic consideration. These quantitative and qualitative results will be summarized in a pros/cons table as a summary for this analysis
An investigation of selected on-orbit satellite servicing issues
The results of three separate investigations performed by Science Applications International Corporation (SAIC) between August 1985 and October 1986 as the second phase of the two-phase Satellite Services System Program Plan contract for the Engineering Directorate of the Lyndon B. Johnson Space Center are discussed. The objectives of the first phase of this contract (reported in SAIC-85/1762) were to determine the potential for servicing a diverse range of spacecraft from the Space Shuttle Orbiter and to assess NASA's role as the catalyst in enabling routine on-orbit servicing. The second area of investigation was prompted by the need to understand satellite servicing requirements in the far term (1995 to 2010) and how results from the first phase of this contract could support these requirements. The mission model developed during the first phase was extended using new data and information from studies which address the later time period. The third area of investigation looked at a new servicing mode which had not been studied previously. This mode involves the on-orbit exchange of very large modules with masses greater than approximately 9,000 kilograms and/or lengths greater than approximately nine meters. The viewgraphs used for the final briefing for each of the three investigations, as presented to NASA are given
Transitioning from Space Shuttle to Space Station On-Orbit Servicing
On-orbit satellite serv1 c mg has been demonstrated on a variety of missions using the Space Shuttle. This capability is also a stated goa 1 of the Space Station and other unmanned vehicles. Serviceable spacecraft should be able to take advantage of all these servic~ng facilities. This paper will discuss one effort to document currently available or nearly operational servicing interfaces. Availability of this. type of compiled information will assist in a smooth transition from Shuttle-based satellite serv1c1ng to serv1c1ng at a wider range of locations and by different servicing vehicles
An Introduction to Human Mars Mission Equipment and Operations
The exploration of Mars by human crews will be a complex endeavor as illustrated by this description of NASA's current architecture for the human exploration of the surface of Mars. The surface environment, in particular the ubiquitous dust, will be an important factor in designing the systems and operations needed for a safe and effective campaign of missions to achieve this objective. This introduction describes the exploration architecture with some indication of where and how dust could affect it. The remainder of this volume describes details of these dust effects on the crews, the systems, and the operations that make up this exciting and challenging enterprise
Pioneering Objectives and Activities on the Surface of Mars
Human Mars missions have been a topic of sustained interest within NASA, which continues to use its resources to examine many different mission objectives, trajectories, vehicles, and technologies, the combinations of which are often referred to as reference missions or architectures. The current investigative effort, known as the Evolvable Mars Campaign (EMC), is examining alternatives that can pioneer an extended human presence on Mars that is Earth independent. These alternatives involve combinations of all the factors just mentioned. This paper is focused on the subset of these factors involved with objectives and activities that take place on the surface of Mars. "Pioneering" is a useful phrase to encapsulate the current approach being used to address this situation - one of its primary definitions is "a person or group that originates or helps open up a new line of thought or activity or a new method or technical development". Thus, in this scenario, NASA would be embarking on a path to "pioneer" a suite of technologies and operations that will result in an Earth independent, extended stay capability for humans on Mars. This paper will describe (a) the concept of operation determined to be best suited for the initial emplacement, (b) the functional capabilities determined to be necessary for this emplacement, with representative examples of systems that could carry out these functional capabilities and one implementation example (i.e., delivery sequence) at a representative landing site, and will (c) discuss possible capabilities and operations during subsequent surface missions
The Uneasy Entente Between Insanity and Mens Rea: Beyond \u3ci\u3eClark v. Arizona\u3c/i\u3e
There is uneasy tension in the criminal law between the doctrines of mens rea and the defense of legal insanity. Last term, the Supreme Court addressed both these issues, but failed to clarify the relation between them. Using a wide range of interdisciplinary materials, this article discusses the broad doctrinal, theoretical, and normative issues concerning responsibility that arise in this context. We clarify the meaning of mental disorder, mens rea and legal insanity, the justification for and the relation between the latter two, and the relation among all three. Next we consider the reasoning in Clark, and for the most part find it wanting. Then we turn to the constitutionality and wisdom of abolishing or limiting mens rea and legal insanity. We conclude that although it is probably constitutional to abolish legal insanity, robust doctrines of mens rea and the insanity defense itself must be maintained to insure that the criminal law imposes fair blame and punishment. We next canvas the alternatives to legal insanity, including the most contemporary, reasoned academic proposal, and find all insufficient to achieve justice. Finally, we respond to the increasing challenges to responsibility generated by new scientific findings about human behavior, especially by the new neuroscience, and suggest that these findings do not undermine core conceptions of personhood and responsibility
The Uneasy Entente Between Insanity and Mens Rea: Beyond \u3ci\u3eClark v. Arizona\u3c/i\u3e
There is uneasy tension in the criminal law between the doctrines of mens rea and the defense of legal insanity. Last term, the Supreme Court addressed both these issues, but failed to clarify the relation between them. Using a wide range of interdisciplinary materials, this article discusses the broad doctrinal, theoretical, and normative issues concerning responsibility that arise in this context. We clarify the meaning of mental disorder, mens rea and legal insanity, the justification for and the relation between the latter two, and the relation among all three. Next we consider the reasoning in Clark, and for the most part find it wanting. Then we turn to the constitutionality and wisdom of abolishing or limiting mens rea and legal insanity. We conclude that although it is probably constitutional to abolish legal insanity, robust doctrines of mens rea and the insanity defense itself must be maintained to insure that the criminal law imposes fair blame and punishment. We next canvas the alternatives to legal insanity, including the most contemporary, reasoned academic proposal, and find all insufficient to achieve justice. Finally, we respond to the increasing challenges to responsibility generated by new scientific findings about human behavior, especially by the new neuroscience, and suggest that these findings do not undermine core conceptions of personhood and responsibility
- …