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  • Other Sources  (27,607)
  • LUNAR AND PLANETARY EXPLORATION  (14,409)
  • Life Sciences (General)  (6,981)
  • Man/System Technology and Life Support  (6,217)
  • Analytical Chemistry and Spectroscopy
  • Life and Medical Sciences
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  • 1
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    Vapor Compression Distillation Flight Experiment (2002)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: One of the major requirements associated with operating the International Space Station is the transportation -- space shuttle and Russian Progress spacecraft launches - necessary to re-supply station crews with food and water. The Vapor Compression Distillation (VCD) Flight Experiment, managed by NASA's Marshall Space Flight Center in Huntsville, Ala., is a full-scale demonstration of technology being developed to recycle crewmember urine and wastewater aboard the International Space Station and thereby reduce the amount of water that must be re-supplied. Based on results of the VCD Flight Experiment, an operational urine processor will be installed in Node 3 of the space station in 2005.
    Keywords: Man/System Technology and Life Support
    Type: STS 107 Shuttle Press Kit: Providing 24/7 Space Science Research; 97-99
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  • 2
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    ASTROCULTURE(tm) Commercial Plant Growth Unit and Glove Box Insert (2002)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: Two commercial plant investigations will be conducted during the STS-107 mission: living flower essential oil production and gene transfer. The research will be done using the ASTROCULTURE (trademark) hardware, which builds on similar experiments flown in the past on the space shuttle. This research will investigate how microgravity might affect the formation of the volatile chemical compounds - the essential oils - produced by two different types of living flowers. The flowers will be cultured in the ASTROCULTURE (trademark) plant chamber, which provides an enclosed and controlled environment. As the flowers bloom in space, they will produce essential oils, and these volatile compounds will be collected using International Flavors and Fragrance's proprietary Solid Phase Micro Extraction (SPME) technology. The gene transfer experiment examines a newly developed transformation system to see if it operates efficiently in the microgravity environment. This research is important for the development of genetically engineered crops, also known as transgenic crops.
    Keywords: Life Sciences (General)
    Type: STS 107 Shuttle Press Kit: Providing 24/7 Space Science Research; 82-84
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  • 3
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    Echo the Bat and the Pigeon Adventure (2000)
    In:  CASI
    Details
    Publication Date: 2004-12-03
    Description: A multimedia, CD ROM to teach 2nd graders about remote sensing was created and developed into a web site. Distribution was expanded for Grades K-4 or 5-8. The idea was to have a story introduction, interactive story and a teacher's website. Interactive Multimedia Adventures in Grade School Education using Remote Sensing (I.M.A.G.E.R.S.) was created. The lessons are easy to use, readily available and aligned with national standards. This resource combines hands-on activities with an interactive web site
    Keywords: Life Sciences (General)
    Type: Materials Presented at the MU-SPIN Ninth Annual Users' Conference; 171-192; NASA/CP-2000-209970
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  • 4
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    Regulation in the Chemolithotroph Thiobacillus Neapolitanus: Fructose-1,6-Diphosphatase (1973)
    In:  Other Sources
    Details
    Publication Date: 2011-11-24
    Description: No abstract available
    Keywords: Life Sciences (General)
    Type: Archiv fur Mikrobiologie (ISSN 0003-9276); Volume 93; 1; 23-8
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  • 5
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    Carbon nanotube scanning probe for imaging in aqueous environment (2004)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: Carbon nanotubes (CNTs) used as a probe for scanning probe microscopy has become one of the many potential usages of CNTs that is finding real applications in scientific research and industrial communities. It has been proposed that the unique mechanical buckling properties of the CNT would lessen the imaging force exerted on the sample and, thus, make CNT scanning probes ideal for imaging soft materials, including biological samples in liquid environments. The hydrophobic nature of the CNT graphitic sidewall is clearly chemically incompatible with the aqueous solution requirements in some biological imaging applications. In this paper, we present electron micrograph results demonstrating the instability of CNT scanning probes when submerged in aqueous solution. Moreover, we also introduce a novel approach to resolve this chemical incompatibility problem. By coating the CNT probe with ethylenediamine, thus rendering the CNT probe less hydrophobic, we demonstrate the liquid imaging capability of treated CNT probes. Experimental data for imaging in aqueous solutions are presented, which include an ultrathin Ir film and DNA molecules on a mica surface.
    Keywords: Life Sciences (General)
    Type: IEEE Trans Nanobioscience (ISSN 1536-1241); Volume 3; 1; 56-60
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  • 6
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    Simultaneous quantification of poly-dispersed anionic, amphoteric and nonionic surfactants in simulated wastewater samples using C18 high-performance liquid chromatography-quadrupole ion-trap mass spectrometry (2005)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: This paper describes the development of a guantitative method for direct and simultaneous determination of three frequently encountered surfactants, amphoteric (cocoamphoacetate, CAA), anionic (sodium laureth sulfate, SLES), and nonionic (alcohol ethoxylate, AE) using a reversed-phase C18 HPLC coupled with an ESI ion-trap mass spectrometer (MS). Chemical composition, ionization characteristics and fragmentation pathways of the surfactants are presented. Positive ESI was effective for all three surfactants in agueous methanol buffered with ammonium acetate. The method enables rapid determinations in small sample volumes containing inorganic salts (up to 3.5 g L(-1)) and multiple classes of surfactants with high specificity by applying surfactant specific tandem mass spectrometric strategies. It has dynamic linear ranges of 2-60, 1.5-40, 0.8-56 mg L(-1) with R2 egual or greater than 0.999, 0.98 and 0.999 (10 microL injection) for CAA, SLES, and AE, respectively.
    Keywords: Life Sciences (General)
    Type: Journal of chromatography. A; Volume 1062; 2; 217-25
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  • 7
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    Monitoring space shuttle air quality using the Jet Propulsion Laboratory electronic nose (2004)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: A miniature electronic nose (ENose) has been designed and built at the Jet Propulsion Laboratory (JPL), Pasadena, CA, and was designed to detect, identify, and quantify ten common contaminants and relative humidity changes. The sensing array includes 32 sensing films made from polymer carbon-black composites. Event identification and quantification were done using the Levenberg-Marquart nonlinear least squares method. After successful ground training, this ENose was used in a demonstration experiment aboard STS-95 (October-November, 1998), in which the ENose was operated continuously for six days and recorded the sensors' response to the air in the mid-deck. Air samples were collected daily and analyzed independently after the flight. Changes in shuttle-cabin humidity were detected and quantified by the JPL ENose; neither the ENose nor the air samples detected any of the contaminants on the target list. The device is microgravity insensitive.
    Keywords: Man/System Technology and Life Support
    Type: IEEE Sens J (ISSN 1530-437X); Volume 4; 3; 337-47
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  • 8
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    Carbon nanotubes and nanowires for biological sensing (2005)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: This chapter reviews the recent development in biological sensing using nanotechnologies based on carbon nanotubes and various nanowires. These 1D materials have shown unique properties that are efficient in interacting with biomolecules of similar dimensions, i.e., on a nanometer scale. Various aspects including synthesis, materials properties, device fabrication, biofunctionalization, and biological sensing applications of such materials are reviewed. The potential of such integrated nanobiosensors in providing ultrahigh sensitivity, fast response, and high-degree multiplex detection, yet with minimum sample requirements is demonstrated. This chapter is intended to provide comprehensive updated information for people from a variety of backgrounds but with common interests in the fast-moving interdisciplinary field of nanobiotechnology.
    Keywords: Life Sciences (General)
    Type: Methods in molecular biology (Clifton, N.J.) (ISSN 1064-3745); Volume 300; 191-23
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  • 9
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    Genome-wide transcriptional analysis of flagellar regeneration in Chlamydomonas reinhardtii identifies orthologs of ciliary disease genes (2005)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: The important role that cilia and flagella play in human disease creates an urgent need to identify genes involved in ciliary assembly and function. The strong and specific induction of flagellar-coding genes during flagellar regeneration in Chlamydomonas reinhardtii suggests that transcriptional profiling of such cells would reveal new flagella-related genes. We have conducted a genome-wide analysis of RNA transcript levels during flagellar regeneration in Chlamydomonas by using maskless photolithography method-produced DNA oligonucleotide microarrays with unique probe sequences for all exons of the 19,803 predicted genes. This analysis represents previously uncharacterized whole-genome transcriptional activity profiling study in this important model organism. Analysis of strongly induced genes reveals a large set of known flagellar components and also identifies a number of important disease-related proteins as being involved with cilia and flagella, including the zebrafish polycystic kidney genes Qilin, Reptin, and Pontin, as well as the testis-expressed tubby-like protein TULP2.
    Keywords: Life Sciences (General)
    Type: Proceedings of the National Academy of Sciences of the United States of America (ISSN 0027-8424); Volume 102; 10; 3703-7
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  • 10
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    A self-assembling protein template for constrained synthesis and patterning of nanoparticle arrays (2005)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: No abstract available
    Keywords: Life Sciences (General)
    Type: Journal of the American Chemical Society (ISSN 0002-7863); Volume 127; 9; 2800-1
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