Science.gov

Sample records for outstanding lobelia dortmanna

  1. Genetic Adaptation of Giant Lobelias (Lobelia aberdarica and Lobelia telekii) to Different Altitudes in East African Mountains

    PubMed Central

    Zhao, Shu-Ying; Chen, Ling-Yun; Muchuku, John K.; Hu, Guang-Wan; Wang, Qing-Feng

    2016-01-01

    The giant lobelias in East African mountains are good models for studying molecular mechanisms of adaptation to different altitudes. In this study, we generated RNA-seq data of a middle-altitude species Lobelia aberdarica and a high-altitude species L. telekii, followed by selective pressure estimation of their orthologous genes. Our aim was to explore the important genes potentially involved in adaptation to different altitudes. About 9.3 Gb of clean nucleotides, 167,929–170,534 unigenes with total lengths of 159,762,099–171,138,936 bp for each of the two species were generated. OrthoMCL method identified 3,049 1:1 orthologous genes (each species was represented by one ortholog). Estimations of non-synonymous to synonymous rate were performed using an approximate method and a maximum likelihood method in PAML. Eighty-five orthologous genes were under positive selection. At least 8 of these genes are possibly involved in DNA repair, response to DNA damage and temperature stimulus, and regulation of gene expression, which hints on how giant lobelias adapt to high altitudinal environment that characterized by cold, low oxygen, and strong ultraviolet radiation. The negatively selected genes are over-represented in Gene Ontology terms of hydrolase, macromolecular complex assembly among others. This study sheds light on understanding the molecular mechanism of adaptation to different altitudes, and provides genomic resources for further studies of giant lobelias. PMID:27148313

  2. Nectar spur evolution in the Mexican lobelias (Campanulaceae: Lobelioideae).

    PubMed

    Koopman, Margaret M; Ayers, Tina J

    2005-03-01

    Phylogenetic studies are often hampered by the independent evolution of characters that may potentially obscure relationships. The adaptive significance of the nectar spur and its evolution within the Mexican lobeliads (Campanulaceae) is considered here. The taxonomic delimitations of Heterotoma from the Mexican species within the genera Lobelia and Calcaratolobelia were tested. Independent molecular data were gathered to determine whether the Mexican spurred lobeliads should be treated as distinct genera. The internal transcribed spacer (ITS) region from 18-26S nuclear rDNA and chloroplast DNA from the 3' trnK intron were sequenced from 14 representative species. Our data suggest that Heterotoma, as originally conceived, is a good evolutionary unit within Lobelia and that the presence of a nectar spur is an important morphological character that can be used in defining phylogenetic position. This study also suggests that morphological changes associated with hummingbird pollination have evolved more than once in the Mexican lobeliads, from small blue-flowered, insect-pollinated relatives.

  3. Phylogeography and conservation genetics of a giant lobelia (Lobelia giberroa) in Ethiopian and Tropical East African mountains.

    PubMed

    Kebede, Mulugeta; Ehrich, Dorothee; Taberlet, Pierre; Nemomissa, Sileshi; Brochmann, Christian

    2007-03-01

    Lobelia giberroa is a giant rosette plant growing in the afro-montane belt of the afro-alpine environment, a unique and little-studied ecosystem occupying the high mountains of eastern Africa. We analysed amplified fragment length polymorphisms (AFLPs) from 11 mountain systems in Ethiopia and Tropical East Africa to infer the phylogeographical history of the species. A total of 191 individuals were investigated from 25 populations. Principal coordinate analysis and population structure analyses revealed three major phylogeographical groups: the Ethiopian mountains and one group on each side of the Rift Valley in Tropical East Africa, respectively: Elgon-Cherangani and Kenya-Aberdare-Kilimanjaro-Meru. Analysis of Molecular Variance showed 55.7% variance among the three groups, suggesting an old divergence. Together with a clear geographical substructure within the main groups, this pattern indicates gradual expansion and supports the montane forest bridge hypothesis, stating that the area occupied by forest was larger and more continuous in previous interglacials and earlier in the present interglacial. Genetic diversity was lower in Ethiopia than in the other two main groups, possibly due to an ancient founder effect when Ethiopia was colonized from the south.

  4. A study on the effect of aqueous extract of Lobelia chinensis on colon precancerous lesions in rats.

    PubMed

    Han, Shao-Rong; Lv, Xiao-Yan; Wang, Yan-Ming; Gong, Hai; Zhang, Cong; Tong, An-Na; Yan, Ning

    2013-01-01

    This paper studies the effects of Lobelia chinensis on colon precancerous lesions and on colonic epithelial proliferation and apoptosis in DMH-induced rats. After two weeks of feeding, 50 Wistar rats were randomly divided into five groups, namely the normal group, model group, Lobelia chinensis low-dose group, medium-dose group and high-dose group. Lobelia chinensis was made into ACF model, and administered to experimental groups for 10 consecutive weeks. Control group was given equivalent amount of normal saline. After feeding for 10 weeks, the rats in each group were sacrificed and the changes in colonic ACF number of rats in experimental groups were observed, and the inhibition rates were calculated. The results showed that among the rats fed for 24 h and 48 h, the number of apoptotic cells in colonic crypts of rats in DMH group did not differ significantly from the control group, while the difference was obvious between the control group and Lobelia chinensis treatment groups. The medium and high doses, that is, 0.45 g/kg and 1.35 g/kg can significantly inhibit ACF formation (P<0.01). The inhibition rates of low, medium and high doses were 8.12%, 59.42% and 65.44%, respectively.

  5. HPLC-ESI-MS/MS of brain neurotransmitter modulator lobeline and related piperidine alkaloids in Lobelia inflata L.

    PubMed

    Kursinszki, László; Szőke, Éva

    2015-05-01

    There is a renewed interest in lobelia alkaloids because of their activity on the central nervous system. Lobeline, the most active of them, a nicotinic receptor ligand and neurotransmitter transporter inhibitor, is a candidate pharmacotherapy for metamphetamine abuse. In the present work, high-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry in positive ion mode was used for investigating the alkaloid profile in Lobelia inflata L. Chromatographic separations were achieved on a Gemini C6-phenyl reversed-phase column providing good peak shape and improved selectivity. Being mostly 2,6-disubstituted piperidines, lobelia alkaloids presented abundant [M + H](+) ions with typical fragmentation. Identification was possible from a few specific ions, especially those resulting from excision of one of the substituents. Based on fragmentation pattern of lobeline as reference compound, 52 alkaloids were identified in the aqueous methanolic extract of L. inflata in contrast to the previously known some 20. Structural variability of these alkaloids identified arises basically from their substituents which can be phenyl-2-ketoethyl- or phenyl-2-hydroxyethyl units as well as their methyl-, ethyl- or propyl- homologues attached in different combinations. Several propyl homologue lobelia alkaloids and five hydroxypiperidine derivatives were found in the plant at the first time. In addition to 8-O-esters of 2-monosubstituted piperidine alkaloids previously reported by us in L. inflata, a 3-hydroxy-3-phenylpropanoic acid ester of hydroxyallosedamine ring-substituted was also identified as a new natural product. High-performance liquid chromatography-electrospray ionization tandem mass spectrometry can be successfully applied to Lobeliacae plant samples in the routine screening for new and known bioactive constituents, quality control of the crude drug, lobelia herba, alkaloid production studies, breeding and chemotaxonomy.

  6. Best Practices & Outstanding Initiatives

    ERIC Educational Resources Information Center

    Training, 2011

    2011-01-01

    In this article, "Training" editors recognize innovative and successful learning and development programs and practices. They share best practices from Automatic Data Processing, Inc., Farmers Insurance Group, FedEx Express, InterContinental Hotels Group, and Oakwood Temporary Housing. They also present the outstanding initiatives of EMD Serono,…

  7. Outstanding student paper awards

    NASA Astrophysics Data System (ADS)

    The Hydrology Section presented six outstanding student paper awards at the 2000 AGU Spring Meeting in Washington, D.C., last June.Wade T. Crow presented a poster titled Impacts of Upscaling Soil Moisture During SGP 97. He received a B.A. in physics from Carleton College in 1995, and a M.S.E.in civil and environmental engineering from Princeton University in 1998. Wade is currently completing his Ph.D. at Princeton. His dissertation work, supervised by Eric F Wood, focuses on spatial scale issues surrounding both the retrieval of soil moisture imagery by microwave remote sensors and the eventual assimilation of this imagery into hydrologic models.

  8. Outstanding student paper awards

    NASA Astrophysics Data System (ADS)

    Six Outstanding Student Paper awards were given in the Space Physics and Aeronomy Section at the AGU Spring Meeting, held last May in Baltimore, Md.David Walthour, who presented “Satellite Data Analysis of Two-Dimensional Magnetopause Structures,” is a doctoral student at the Thayer School of Engineering, Dartmouth College. He received a B.S. in electrical engineering from the University of Cincinnati. His research interests include field-aligned MHD flows, the development of data analysis techniques for examining transient events at the Earth magnetopause, and the study of anomalous MHD wave properties in anisotropic plasmas with application to reconnection.

  9. Outstanding student papers

    NASA Astrophysics Data System (ADS)

    Two presentations were named Outstanding Student Papers in the Geodesy Section at the 1993 AGU Fall Meeting in San Francisco, Calif.Susan Owen was honored for her presentation “1990-1993 Surface Displacements on Kilauea Volcano Determined by GPS.” She is a Ph.D. student in the Geophysics department at Stanford University, Palo Alto, Calif. She received a B.A. in Physics from Harvard-Radcliffe College. Owen's research involves working with GPS data from Kilauea Volcano. She is also interested in active tectonic, crustal deformation, and the earthquake process.

  10. Outstanding Nonfiction Choices for 1998.

    ERIC Educational Resources Information Center

    Aoki, Elaine; Jensen, Julie; Kerper, Richard; Nathan, Ruth; Smith, Karen Patricia; Zarnowski, Myra

    2000-01-01

    Offers brief descriptions of 20 outstanding nonfiction for children, including the 1999 Orbis Pictus Award winner, and four Orbis Pictus honor books as well as a number of other outstanding nonfiction titles dealing mainly with history and biography. (SR)

  11. Population Genetic Analysis of Lobelia rhynchopetalum Hemsl. (Campanulaceae) Using DNA Sequences from ITS and Eight Chloroplast DNA Regions

    PubMed Central

    Geleta, Mulatu; Bryngelsson, Tomas

    2012-01-01

    DNA sequence data from the internal transcribed spacer of nuclear ribosomal DNA and eight chloroplast DNA regions were used to investigate haplotypic variation and population genetic structure of the Afroalpine giant lobelia, Lobelia rhynchopetalum. The study was based on eight populations sampled from two mountain systems in Ethiopia. A total of 20 variable sites were obtained, which resulted in 13 unique haplotypes and an overall nucleotide diversity (ND) of 0.281 ± 0.15 and gene diversity (GD) of 0.85 ± 0.04. Analysis of molecular variance (AMOVA) revealed a highly significant variation (P < 0.001) among populations (FST), and phylogenetic analysis revealed that populations from the two mountain systems formed their own distinct clade with >90% bootstrap support. Each population should be regarded as a significant unit for conservation of this species. The primers designed for this study can be applied to any Lobelia and other closely related species for population genetics and phylogenetic studies. PMID:22272170

  12. Outstanding student papers

    NASA Astrophysics Data System (ADS)

    Eight presentations were named Outstanding Student Papers in the Atmospheric Sciences Section at the 1995 Fall Meeting.Steve Davis, who presented “Reversal Effects in Wideband dE/dt from Lightning Measured at Multiple Ground Stations,” is currently attending the University of Florida pursuing a Ph.D. in electrical engineering. He graduated with high honors in 1990 with his bachelor's degree in electrical engineering from the University of Florida. He received his master's degree in 1992 from the University of Florida. The research for his master's degree was in the area of photonics with applications to laser and waveguide structures. His current research with Ewen Thomson involves measuring radiation from lightning at multiple ground stations. From these measurements, he hopes to determine lightning parameters such as velocities and currents and apply these to new and existing models.

  13. Outstanding student paper awards

    NASA Astrophysics Data System (ADS)

    The Hydrology Section presented five outstanding student paper awards at the 1999 Spring Meeting in Boston, Massachusetts, last June.Maneesha Joshi presented a poster titled “Estimation of the Extent and Duration of Melt on the Greenland Ice Sheet using an Edge Detection Technique on Passive Microwave Data.” She received her B.Tech. in civil engineering from the Indian Institute of Technology, Bombay in 1991, and a M.S. in environmental engineering from State University of New York, Buffalo in 1994. Maneesha expects to complete her Ph.D. in civil engineering (remote sensing) in September 1999, under the supervision of Carolyn Merry (Department of Civil and Environmental Engineering & Geodetic Science), Ken Jezek, and John Bolzan (Byrd Polar Research Center) at the Ohio State University, Columbus, Ohio. Her thesis focuses on estimating the extent of melt, melt season, and duration, and absorbed radiation on the Greenland ice sheet from passive microwave and SAR data. Maneesha's other interests include image processing, issues related to global climate change, and photogrammetry.

  14. Outstanding student paper awards

    NASA Astrophysics Data System (ADS)

    The Atmospheric Sciences Section presented the following outstanding student paper awards at the AGU 1997 Fall Meeting in San Francisco, California, last December. James Corbett presented a poster on “Nitrogen and Sulfur Emissions From Oceangoing Ships.” James is a Ph.D. candidate in the Department of Engineering and Public Policy (EPP) at Carnegie Mellon University, Pittsburgh, Pa. He has been awarded a M.S. degree in EPP and recently completed the M.S. requirements in the Department of Mechanical Engineering. He graduated in 1985 with a degree in marine engineering technology from the California Maritime Academy and holds a California Professional Engineering License (Mechanical). He joined the doctoral program in engineering and public policy at Carnegie Mellon University in August 1995. In 1997, he was selected for a U.S. EPA STAR Fellowship. His research focuses on international maritime transportation and pollution issues, particularly air emissions from ship propulsion. James has developed the first global geographic characterization of air emissions from international maritime transport. As recently published in Science (Corbett and Fischbeck, 1997), his work estimates the global annual nitrogen and sulfur emissions from ships to be 3.08 terragrams (Tg) N and 4.24 Tg S, respectively.

  15. Outstanding student paper award

    NASA Astrophysics Data System (ADS)

    The Planetology Section presented an outstanding student paper award to Julie Ann Rathbun at the AGU 1998 Spring Meeting in Boston, Mass., last May. Julie Ann Rathbun presented a paper titled “Ice Diapirs on Europa and Their Implications."” Julie received her B.S. degree in physics from the State University of New York at Buffalo in May 1994. She has an M.S. in astronomy from Cornell University that she received in July 1997. At present, she is working towards a Ph.D. in astronomy from Cornell under the direction of Steven Squyres. Julie's thesis topic is studying thermal upwellings on Venus and Europa using techniques developed for Coronae formation. She is doing this study in order to understand the subsurface structure of the bodies and how similar processes can differ in icy and rocky bodies. Work already accomplished toward this thesis are Magellan data used to model the formation of Beta Regio and Theia Mons, and Galileo data used to model the formation of small topographic domes to show that a liquid water ocean must have been present at the time of their formation.

  16. Outstanding student papers

    NASA Astrophysics Data System (ADS)

    Two presentations in the Geodesy Section were named Outstanding Student Papers at AGU's Spring Meeting in Baltimore, Md.John Weber presented “Estimation of Site Velocity Gradients from GPS Measurements in the New Madrid Seismic Zone.” Weber received an A.S. (1980) from Moraine Valley Community College, then a B.S. (1982), and an M.S(1987), both in Geology, from Southern Illinois University-Carbondale. He completed his Ph.D. (1995) research at Northwestern University as a NASA Fellow, and is currently working at RSMAS as an NSF Postdoctoral Fellow. In his work, he estimates strains and motions in the Caribbean-South America plate boundary zone by comparing historic (1901) triangulation data to 1994 GPS measurements. His research interests are broadly related to kinematics and deformation, mostly in plate boundary zones (ancient and modern), although his Ph.D. research focused on poorly understood intraplate deformation. He applies in his research techniques from both geodesy and structural geology. This fall, he will start a new position as a structural geologist at Grand Valley State University, Michigan.

  17. Pollinators cause stronger selection than herbivores on floral traits in Lobelia cardinalis (Lobeliaceae).

    PubMed

    Bartkowska, Magdalena P; Johnston, Mark O

    2012-03-01

    Measures of selection on floral traits in flowering plants are often motivated by the assumption that pollinators cause selection. Flowering plants experience selection from other sources, including herbivores, which may enhance or oppose selection by pollinators. Surprisingly, few studies have examined selection from multiple sources on the same traits. We quantified pollinator-mediated selection on six floral traits of Lobelia cardinalis by comparing selection in naturally and supplementally (hand-) pollinated plants. Directional, quadratic and correlational selection gradients as well as total directional and quadratic selection differentials were examined. We used path analysis to examine how three herbivores--slugs, weevils and caterpillars--affected the relationship between floral traits and fitness. We detected stronger total selection on four traits and correlational selection (γ(ij)) on three trait combinations in the natural pollination treatment, indicating that pollinators caused selection on these traits. Weak but statistically significant selection was caused by weevil larvae on stem diameter and anther-nectary distance, and by slugs on median-flower date. In this study, pollinators imposed stronger selection than herbivores on floral traits in L. cardinalis. In general, the degree of pollen limitation and rate of herbivory are expected to influence the relative strength of selection caused by pollinators or herbivores.

  18. Study of Commercially Available Lobelia chinensis Products Using Bar-HRM Technology

    PubMed Central

    Sun, Wei; Yan, Song; Li, Jingjian; Xiong, Chao; Shi, Yuhua; Wu, Lan; Xiang, Li; Deng, Bo; Ma, Wei; Chen, Shilin

    2017-01-01

    There is an unmet need for herbal medicine identification using a fast, sensitive, and easy-to-use method that does not require complex infrastructure and well-trained technicians. For instance, the detection of adulterants in Lobelia chinensis herbal product has been challenging, since current detection technologies are not effective due to their own limits. High Resolution Melting (HRM) has emerged as a powerful new technology for clinical diagnosis, research in the food industry and in plant molecular biology, and this method has already highlighted the complexity of species identification. In this study, we developed a method of species specific detection of L. chinensis using HRM analysis combined with internal transcribed spacer 2. We then applied this method to commercial products purporting to contain L. chinensis. Our results demonstrated that HRM can differentiate L. chinensis from six common adulterants. HRM was proven to be a fast and accurate technique for testing the authenticity of L. chinensis in herbal products. Based on these results, a HRM approach for herbal authentication is provided. PMID:28360920

  19. Outstanding Nonfiction Choices for 2000.

    ERIC Educational Resources Information Center

    Kerper, Richard M., Ed.; Duthie, Christine; Jensen, Julie M.; Lott, Carolyn; Nathan, Ruth; Smith, Karen Patricia; Zarnowski, Myra

    2001-01-01

    Features 20 outstanding books published in 2000 and selected by the 2001 Orbis Pictus Award Committee. Presents books focusing on trailblazers, exhibiting outstanding human achievement; views from the artistic world; views from the scientific world; and views from the historic world. (SG)

  20. What Makes an Outstanding PTA?

    ERIC Educational Resources Information Center

    Kuersten, Joan

    1998-01-01

    One outstanding PTA created effective communication between school and home in order to facilitate the transition from a traditional school calendar to year-round school. The Home-School Communication Project provides information via a communication folder for families of in-school children; a newsletter for all families; and a PTA telephone…

  1. Archetypes of Outstanding Female Superintendents.

    ERIC Educational Resources Information Center

    Funk, Carole; Pankake, Anita; Schroth, Gwen

    This report documents a study of women superintendents. Specifically, the study identified professional and personal characteristics and styles of leadership to develop archetypes of six outstanding female superintendents in Texas. The intent of the research was also to reveal similarities between and among these superintendents that could provide…

  2. Outstanding problems in Mars aeronomy

    NASA Technical Reports Server (NTRS)

    Luhmann, J. G.

    1995-01-01

    Although the Phobos-2 spacecraft recently obtained important results relevant to some of the major remaining questions in Mars aeronomy, much remains to be done. In particular, not since the Viking Landers have we made in-situ measurements of aeronomical quantities such as atmospheric and ionospheric densities and temperatures below 400 km altitude. We have never made magnetic field measurements at these altitudes. Without such measurements we cannot unambiguously resolve arguments concerning issues such as the significance of the planetary magnetic field in the solar wind interaction, or understand the atmospheric cycle that leads to escape to space. With the trio of future orbiters including Mars Observer, Mars-94, and Planet-B we should see a veritable explosion of new knowledge, but some gaps in aeronomical science coverage will still remain. This paper briefly reviews some of the major unsolved problems in Mars aeronomy, and points out which are expected to remain outstanding after this flotilla of missions.

  3. Visualizing a plant defense and insect counterploy: alkaloid distribution in Lobelia leaves trenched by a plusiine caterpillar.

    PubMed

    Oppel, Craig B; Dussourd, David E; Garimella, Umadevi

    2009-06-01

    Insects that feed on plants protected by latex canals often sever leaf veins or cut trenches across leaves before feeding distal to the cuts. The insects thereby depressurize the canals and reduce latex exudation at their prospective feeding site. How the cuts affect the distribution and concentration of latex chemicals was not known. We modified a microwave-assisted extraction technique to analyze the spatial distribution of alkaloids in leaves of Lobelia cardinalis (Campanulaceae) that have been trenched by a plusiine caterpillar, Enigmogramma basigera (Lepidoptera: Noctuidae). We produced sharp two dimensional maps of alkaloid distribution by microwaving leaves to transfer alkaloids to TLC plates that were then sprayed with Dragendorff's reagent to visualize the alkaloids. The leaf prints were photographed and analyzed with image processing software for quantifying alkaloid levels. A comparison of control and trenched leaves documented that trenching reduces alkaloid levels by approximately 50% both distal and proximal to the trench. The trench becomes greatly enriched in alkaloids due to latex draining from surrounding areas. Measurements of exudation from trenched leaves demonstrate that latex pressures are rapidly restored proximal, but not distal to the trench. Thus, the trench serves not only to drain latex with alkaloids from the caterpillar's prospective feeding site, but also to isolate this section, thereby preventing an influx of latex from an extensive area that likely extends beyond the leaf. Microwave-assisted extraction of leaves has potential for diverse applications that include visualizing the impact of pathogens, leaf miners, sap-sucking insects, and other herbivores on the distribution and abundance of alkaloids and other important defensive compounds.

  4. Pharmacological properties of beta-amyrin palmitate, a novel centrally acting compound, isolated from Lobelia inflata leaves.

    PubMed

    Subarnas, A; Tadano, T; Oshima, Y; Kisara, K; Ohizumi, Y

    1993-06-01

    Effects of beta-amyrin palmitate isolated from the leaves of Lobelia inflata were studied on the central nervous system of mice and were compared with those of antidepressant drugs, mianserin and imipramine. In the forced swimming test, beta-amyrin palmitate, like mianserin and imipramine, reduced the duration of immobility of mice significantly in a dose-dependent manner (5, 10 and 20 mg kg-1). beta-Amyrin palmitate (5, 10 and 20 mg kg-1) or mianserin (5, 10 and 20 mg kg-1) elicited a dose-related reduction in locomotor activity of mice and antagonized locomotor stimulation induced by methamphetamine. In contrast, imipramine (5, 10 and 20 mg kg-1) increased locomotor activity and potentiated methamphetamine-induced hyperactivity. beta-Amyrin palmitate showed no effect on reserpine-induced hypothermia, whilst mianserin (10 mg kg-1) and imipramine (10 and 20 mg kg-1) antagonized the reserpine-induced effect. Unlike imipramine, beta-amyrin palmitate and mianserin did not affect haloperidol-induced catalepsy, tetrabenazine-induced ptosis and apomorphine-induced stereotypy. beta-Amyrin palmitate and imipramine had no effects on the head-twitch response induced by 5-hydroxytryptophan, whereas mianserin (5, 10 and 20 mg kg-1) decreased it in a dose-dependent manner. A potentiating effect of beta-amyrin palmitate (5, 10 and 20 mg kg-1) on narcosis induced by sodium pentobarbitone was stronger than that of imipramine (10, 20 and 40 mg kg-1) but weaker than that of mianserin (2.5, 5 and 10 mg kg-1). These results suggest that beta-amyrin palmitate has similar properties in some respects to mianserin and might possess a sedative action.(ABSTRACT TRUNCATED AT 250 WORDS)

  5. The continuum between semelparity and iteroparity: plastic expression of parity in response to season length manipulation in Lobelia inflata

    PubMed Central

    2014-01-01

    Background Semelparity and iteroparity are considered to be distinct and alternative life-history strategies, where semelparity is characterized by a single, fatal reproductive episode, and iteroparity by repeated reproduction throughout life. However, semelparous organisms do not reproduce instantaneously; typically reproduction occurs over an extended time period. If variation in reproductive allocation exists within such a prolonged reproductive episode, semelparity may be considered iteroparity over a shorter time scale. This continuity hypothesis predicts that “semelparous” organisms with relatively low probability of survival after age at first reproduction will exhibit more extreme semelparity than those with high probability of adult survival. This contrasts with the conception of semelparity as a distinct reproductive strategy expressing a discrete, single, bout of reproduction, where reproductive phenotype is expected to be relatively invariant. Here, we manipulate expected season length—and thus expected adult survival—to ask whether Lobelia inflata, a classic “semelparous” plant, exhibits plasticity along a semelparous-iteroparous continuum. Results Groups of replicated genotypes were manipulated to initiate reproduction at different points in the growing season in each of three years. In lab and field populations alike, the norm of reaction in parity across a season was as predicted by the continuity hypothesis: as individuals bolted later, they showed shorter time to, and smaller size at first reproduction, and multiplied their reproductive organs through branching, thus producing offspring more simultaneously. Conclusions This work demonstrates that reproductive effort occurs along a semelparous-iteroparous continuum within a “semelparous” organism, and that variation in parity occurs within populations as a result of phenotypic plasticity. PMID:24766909

  6. The Outstanding Investigator Award (R35)

    Cancer.gov

    NCI established the Outstanding Investigator Award (R35) in 2015, for principal investigators who have achieved significant research accomplishments. This video features one of the first group of 62 researchers to receive the award.

  7. Outstanding Nonfiction Choices for 1993 (Bookalogues).

    ERIC Educational Resources Information Center

    Aoki, Elaine; And Others

    1994-01-01

    Features the 14 outstanding nonfiction titles published in 1993 and selected by the 1994 Orbis Pictus Award Committee. Presents annotations of the award and honor books, books for all ages, and books for intermediate grades and above. (RS)

  8. A Portfolio of Outstanding Contemporary American Indians.

    ERIC Educational Resources Information Center

    Wood, Theodore E. B.

    The portfolio contains 24 portraits with biographical sketches of outstanding contemporary American Indians. Representing several tribes, occupations, and points of view, the subjects are: Henry Adams, Louis W. Ballard, Robert L. Bennett, George Blue Spruce, Jarrett Blythe, Louis R. Bruce, Leon Cook, Ada Deer, Vine Deloria, Jr., James Gladstone,…

  9. Glimpses into Northwest Lives: Some Outstanding Women.

    ERIC Educational Resources Information Center

    Simon-McWilliams, Ethel; Caldwell, Fran

    Intended as a motivational tool to be used in public school classroom instruction and counseling, this document recognizes some of the outstanding women, from varied ethnic and racial backgrounds, who have contributed to life in the northwestern United States. The document contains succinct biographies of 37 women, and also includes suggestions to…

  10. Favorite Labs from Outstanding Teachers. Volume II.

    ERIC Educational Resources Information Center

    Sanders, Linda R., Ed.

    One of the most valuable resources for obtaining exemplary instructional materials for the classroom is teachers. This booklet contains numerous laboratory activities compiled from submissions by recipients of the National Association of Biology Teachers' Outstanding Biology Teacher Award (1989-92). Topics are sorted into the following sections:…

  11. Leveraging Information Technology. Track VII: Outstanding Applications.

    ERIC Educational Resources Information Center

    CAUSE, Boulder, CO.

    Eight papers from the 1987 CAUSE conference's Track VII, Outstanding Applications, are presented. They include: "Image Databases in the University" (Reid Kaplan and Gordon Mathieson); "Using Information Technology for Travel Management at the University of Michigan" (Robert E. Russell and John C. Hufziger); "On-Line Access…

  12. Identification and Support of Outstanding Astronomy Students

    NASA Astrophysics Data System (ADS)

    Stoev, A. D.; Bozhurova, E. S.

    2006-08-01

    The aims, organizational plan and syllabus of a specialized Astronomy School with a subject of training students for participation in the International Astronomy Olympiad, are presented. Thematic frame includes basic educational activities during the preparation and self-preparation of the students and their participation in astronomical Olympiads. A model of identification and selection of outstanding students for astronomical Olympiads has been developed. Examples of didactic systems of problems for development of mathematical, physical and astronomical skills are shown. The programme ends with individual training for solving problems on astronomy and astrophysics. Possibilities, which the characteristic, non-standard astronomical problems give for stimulating the creative and original thinking, are specified. Basic psychological condition for development of the students' creative potential - transformation of the cognitive content in emotional one - is demonstrated. The programme of identification and support of outstanding students on astronomy is realized in collaboration with The Ministry of Education and Science, Public Astronomical Observatories and Planetaria, Institute of Astronomy - Bulgarian Academy of Sciences, and The Union of Astronomers in Bulgaria.

  13. 11 CFR 9034.5 - Net outstanding campaign obligations.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 11 Federal Elections 1 2013-01-01 2012-01-01 true Net outstanding campaign obligations. 9034.5...: PRESIDENTIAL PRIMARY MATCHING FUND ENTITLEMENTS § 9034.5 Net outstanding campaign obligations. (a) Within 15... shall submit a statement of net outstanding campaign obligations. The candidate's net...

  14. 11 CFR 9034.5 - Net outstanding campaign obligations.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 11 Federal Elections 1 2011-01-01 2011-01-01 false Net outstanding campaign obligations. 9034.5...: PRESIDENTIAL PRIMARY MATCHING FUND ENTITLEMENTS § 9034.5 Net outstanding campaign obligations. (a) Within 15... shall submit a statement of net outstanding campaign obligations. The candidate's net...

  15. 11 CFR 9034.5 - Net outstanding campaign obligations.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 11 Federal Elections 1 2012-01-01 2012-01-01 false Net outstanding campaign obligations. 9034.5...: PRESIDENTIAL PRIMARY MATCHING FUND ENTITLEMENTS § 9034.5 Net outstanding campaign obligations. (a) Within 15... shall submit a statement of net outstanding campaign obligations. The candidate's net...

  16. 11 CFR 9034.5 - Net outstanding campaign obligations.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 11 Federal Elections 1 2014-01-01 2014-01-01 false Net outstanding campaign obligations. 9034.5...: PRESIDENTIAL PRIMARY MATCHING FUND ENTITLEMENTS § 9034.5 Net outstanding campaign obligations. (a) Within 15... shall submit a statement of net outstanding campaign obligations. The candidate's net...

  17. MacCready awarded Outstanding Student Paper

    NASA Astrophysics Data System (ADS)

    Parker MacCready was selected by the Ocean Sciences Section to receive their Outstanding Student Paper Award from the 1989 Fall Meeting in San Francisco for his paper entitled “Stratified Spin-up Over a Slope.” Following receipt of his Bachelor's degree in architecture from Yale in 1982, MacCready went to China for 5 months to study the language. On his return to Pasadena he worked for 3 years for Aerovironment, Inc., concentrating on building and flying a human-powered aircraft and a giant wing-flapping replica of a pterosaur. Having become interested in the aerodynamics of flappingwing propulsion, he continued his studies at Caltech, where he received his Master's degree in 1986. His informal thesis project was a human-powered hydrofoil boat with flapping-wing propulsion. He is currently working on his doctorate in physical oceanography at the University of Washington, where he is studying the dynamics of stratified, rotating boundary layers over topography. His switch to oceanography was motivated by his feeling that environmental fluid mechanics would become an increasingly relevant subject in light of increasing world pollution. In the future he hopes to go into environmental politics, perhaps in a scientific advisory role.

  18. Volcanic Eruptions and Climate: Outstanding Research Issues

    NASA Astrophysics Data System (ADS)

    Robock, Alan

    2016-04-01

    Large volcanic eruptions inject sulfur gases into the stratosphere, which convert to sulfate aerosols with an e-folding residence time of about one year. The radiative and chemical effects of this aerosol cloud produce responses in the climate system. Based on observations after major eruptions of the past and experiments with numerical models of the climate system, we understand much about their climatic impact, but there are also a number of unanswered questions. Volcanic eruptions produce global cooling, and are an important natural cause of interannual, interdecadal, and even centennial-scale climate change. One of the most interesting volcanic effects is the "winter warming" of Northern Hemisphere continents following major tropical eruptions. During the winter in the Northern Hemisphere following every large tropical eruption of the past century, surface air temperatures over North America, Europe, and East Asia were warmer than normal, while they were colder over Greenland and the Middle East. This pattern and the coincident atmospheric circulation correspond to the positive phase of the Arctic Oscillation. While this response is observed after recent major eruptions, most state-of-the-art climate models have trouble simulating winter warming. Why? High latitude eruptions in the Northern Hemisphere, while also producing global cooling, do not have the same impact on atmospheric dynamics. Both tropical and high latitude eruptions can weaken the Indian and African summer monsoon, and the effects can be seen in past records of flow in the Nile and Niger Rivers. Since the Mt. Pinatubo eruption in the Philippines in 1991, there have been no large eruptions that affected climate, but the cumulative effects of small eruptions over the past decade have had a small effect on global temperature trends. Some important outstanding research questions include: How much seasonal, annual, and decadal predictability is possible following a large volcanic eruption? Do

  19. Talking about Books: Outstanding Nonfiction Choices for 1997.

    ERIC Educational Resources Information Center

    Aoki, Elaine; Jensen, Julie; Kerper, Richard; Nathan, Ruth; Smith, Karen Patricia; Zarnowski, Myra

    1998-01-01

    Presents descriptions of (1) the 1997 winner of the Orbis Pictus Award for Outstanding Nonfiction for Children ("An Extraordinary Life: The Story of a Monarch Butterfly"); (2) the 5 Orbis Pictus Honor Books; and (3) 12 other outstanding nonfiction titles selected by the award committee, 6 dealing with history and biography and 6 dealing with the…

  20. Talking about Books: Outstanding Nonfiction Choices for 1996.

    ERIC Educational Resources Information Center

    Aoki, Elaine; Jensen, Julie; Kerper, Richard; Nathan, Ruth; Smith, Karen Patricia; Zarnowski, Myra

    1997-01-01

    Presents substantial annotations of outstanding nonfiction books for children published in 1996, including the 1997 Orbis Pictus Award winner and three 1997 Orbis Pictus Honor books. Presents annotations of 14 other outstanding nonfiction titles, grouped in the following categories: understanding the natural world; looking critically at history;…

  1. Talking about Books: Outstanding Nonfiction Choices for 1999.

    ERIC Educational Resources Information Center

    Kerper, Richard M.; Aoki, Elaine; Duthie, Christine; Jensen, Julie; Lott, Carolyn; Nathan, Ruth; Smith, Karen Patricia; Zarnowski, Myra

    2000-01-01

    Presents and discusses the book which won the 2000 Orbis Pictus Award for Outstanding Nonfiction for Children: "Through My Eyes" by Ruby Bridges. Discusses the five Honor books chosen by the award committee, and offers descriptions of 14 other nonfiction books selected as outstanding by the award committee. (SR)

  2. The Ten Outstanding Engineering Achievements of the Past 50 Years.

    ERIC Educational Resources Information Center

    Hightower, George

    1984-01-01

    Describes the outstanding achievement in each of 10 major engineering categories. These categories include synthetic fibers, nuclear energy, computers, solid state electronics, jet aircraft, biomedical engineering, lasers, communications satellites, the United States space program, and automation and control systems. (JN)

  3. Outstanding Science Trade Books for Students K-12.

    ERIC Educational Resources Information Center

    Science Teacher, 2003

    2003-01-01

    Presents outstanding science trade books published in 2002 for students in grades K-12. Sections include Archaeology, Anthropology, and Paleontology; Biography; Environment and Ecology; Life Science; Physical Science; and Science-Related Careers. (KHR)

  4. Outstanding Science Trade Books for Children for 1996.

    ERIC Educational Resources Information Center

    Science and Children, 1996

    1996-01-01

    Presents an annotated bibliography of outstanding children's science trade books published in 1995 and intended primarily for kindergarten to eighth grade. Sections include biography, environment and ecology, fiction, life science, medicine and medical research, paleontology, and technology and engineering. (JRH)

  5. Outstanding Science Trade Books for Children for 2000.

    ERIC Educational Resources Information Center

    Science and Children, 2000

    2000-01-01

    Lists outstanding science trade books for children in the categories of Biography, Earth and Space Science, Integrated Science, Life Science, Physical Science, and Technology and Engineering. Explains the book selection process. (YDS)

  6. 11 CFR 9004.9 - Net outstanding qualified campaign expenses.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... difference between 11 CFR 9004.9(a) (1) and (2). (1) The total of: (i) All outstanding obligations for... required by 11 CFR 9004.9(a) (1) and (2), except that the amount of outstanding obligations under 11 CFR 9004.9(a)(1)(i) and the amount of cash on hand, assets and receivables under 11 CFR 9004.9(a)(2)...

  7. 11 CFR 9004.9 - Net outstanding qualified campaign expenses.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... difference between 11 CFR 9004.9(a) (1) and (2). (1) The total of: (i) All outstanding obligations for... required by 11 CFR 9004.9(a) (1) and (2), except that the amount of outstanding obligations under 11 CFR 9004.9(a)(1)(i) and the amount of cash on hand, assets and receivables under 11 CFR 9004.9(a)(2)...

  8. 11 CFR 9004.9 - Net outstanding qualified campaign expenses.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... difference between 11 CFR 9004.9(a) (1) and (2). (1) The total of: (i) All outstanding obligations for... required by 11 CFR 9004.9(a) (1) and (2), except that the amount of outstanding obligations under 11 CFR 9004.9(a)(1)(i) and the amount of cash on hand, assets and receivables under 11 CFR 9004.9(a)(2)...

  9. 11 CFR 9004.9 - Net outstanding qualified campaign expenses.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... difference between 11 CFR 9004.9(a) (1) and (2). (1) The total of: (i) All outstanding obligations for... required by 11 CFR 9004.9(a) (1) and (2), except that the amount of outstanding obligations under 11 CFR 9004.9(a)(1)(i) and the amount of cash on hand, assets and receivables under 11 CFR 9004.9(a)(2)...

  10. Giant lobelias exemplify convergent evolution

    PubMed Central

    2010-01-01

    Giant lobeliads on tropical mountains in East Africa and Hawaii have highly unusual, giant-rosette growth forms that appear to be convergent on each other and on those of several independently evolved groups of Asteraceae and other families. A recent phylogenetic analysis by Antonelli, based on sequencing the widest selection of lobeliads to date, raises doubts about this paradigmatic example of convergent evolution. Here I address the kinds of evidence needed to test for convergent evolution and argue that the analysis by Antonelli fails on four points. Antonelli's analysis makes several important contributions to our understanding of lobeliad evolution and geographic spread, but his claim regarding convergence appears to be invalid. Giant lobeliads in Hawaii and Africa represent paradigmatic examples of convergent evolution. PMID:20074322

  11. Outstanding issues related to thermospheric measurements and modelling

    NASA Astrophysics Data System (ADS)

    Moe, Kenneth; Moe, Mildred M.; Doornbos, Eelco

    Semi-empirical thermospheric models are dependent on measurements made in orbit. Out-standing issues regarding the interpretation of those measurements and the effects on models are considered. These include the present state of knowledge of drag coefficients, long-term trends, instrument calibration, radiation pressure, and spacecraft geometry. Many recent and ongoing efforts to evaluate and improve thermospheric models will be described. The advent of attitude-controlled nanosatellites of simple shapes presents opportunities to resolve some of these outstanding issues in conjunction with the forthcoming SWARM program.

  12. Outstanding Science Trade Books for Students K-12

    ERIC Educational Resources Information Center

    Texley, Juliana

    2009-01-01

    Today's classrooms have no real walls! Students explore the world on field trips, during virtual journeys on the world wide web, and through the books they read. These pathways help them fly to the ends of the universe to satisfy their scientific curiosity. Again this year, the professionals of the NSTA/CBC Review Panel for Outstanding Science…

  13. The RASD Outstanding Reference Sources Committee: Retrospect and Prospect.

    ERIC Educational Resources Information Center

    Sheets, Janet; Masters, Deborah C.

    1981-01-01

    Describes the Reference and Adult Services Division's Outstanding Reference Sources Committee procedures for preparation of the 1979 listing, discusses expansion to include nonbook sources, and provides a retrospective list of nonbook sources selected by the 1979-80 committee. Nonbook sources include microforms and databases. Six references are…

  14. Student Observations of Outstanding Teaching: Implications for Marketing Educators

    ERIC Educational Resources Information Center

    Faranda, William T.; Clarke, Irvine, III

    2004-01-01

    In this article, the authors heed the call to explore the attributes of an outstanding professor "by conducting in-depth interviews with students." The study reveals five predominant themes (rapport, delivery, fairness, knowledge and credibility, organization, and preparation) of teaching excellence, as perceived by students, through…

  15. The Classroom Interaction of Outstanding Foreign Language Teachers

    ERIC Educational Resources Information Center

    Moskowitz, Gertrude

    1976-01-01

    The classroom interaction of ten foreign language teachers identified as outstanding was studied and compared with that of a group of typical teachers. The FLint system of interaction analysis and anecdotal records were used to collect data as the teachers taught four different lessons. Differences between the groups are discussed. (Author/RM)

  16. More Outstanding Nonsense: A Critique of Ofsted Criteria

    ERIC Educational Resources Information Center

    Richards, Colin

    2015-01-01

    The Office for Standards in Education's most recently published criteria for "outstanding" teaching are scrutinised and found wanting. They are seen as unrealistic for teachers to meet and equally unrealistic as criteria for use by inspectors. An explanation is offered as to why they are framed as they are and an alternative, more…

  17. Information Technology: Making It All Fit. Track VI: Outstanding Applications.

    ERIC Educational Resources Information Center

    CAUSE, Boulder, CO.

    Seven papers from the 1988 CAUSE conference's Track VI, Outstanding Applications, are presented. They include: "Designing DB2 Data Bases Using Entity-Relationship Modeling: A Case Study--The LSU System Worker's Compensation Project" (Cynthia M. Hadden and Sara G. Zimmerman); "Integrating Information Technology: Prerequisites for…

  18. American School & University Educational Interiors Showcase: Outstanding Designs.

    ERIC Educational Resources Information Center

    American School & University, 1999

    1999-01-01

    Presents the table of contents of award winners for outstanding architectural design in educational facilities. Winning designs listed cover those for common areas, classrooms, libraries and media centers, cafeterias/food service, auditoriums, laboratories, multipurpose rooms, physical/recreational centers, residence halls, student/service…

  19. Glimpses into Pacific Lives: Some Outstanding Women (Revised).

    ERIC Educational Resources Information Center

    Simon-McWilliams, Ethel, Comp.; Green, Karen Reed, Ed.

    This booklet provides brief biographies of women who have made outstanding contributions to the social and economic development of these Pacific islands: American Samoa, the Republic of Belau, the Federated States of Micronesia, Guam, Hawaii, the Marshall islands, and the Northern Mariana Islands. The 66 women profiled include educators, health…

  20. A World of Stories: 2008 Outstanding International Books

    ERIC Educational Resources Information Center

    Angus, Carolyn

    2008-01-01

    For the first time in its three-year history, the United States Board on Books for Young People's (USBBY) Outstanding International Books list includes foreign titles coming from publishers with U.S. distributors, as well as those acquired by U.S. publishers. The selection committee read 380 books published in 2007, narrowing down the best of…

  1. Outstanding Translated Children's Books: Birth of a Bibliography by Committee.

    ERIC Educational Resources Information Center

    Beitler, Roslyn; Bush, Margaret; Gebel, Doris; Mavrogenes, Sylvia; Pelan, Louise; Peterman, Hedra; Smuda, Janice; Sommer, Judith; Trevino, Rose; White, Maureen

    1998-01-01

    In addition to providing an annotated bibliography and a set of criteria for selecting outstanding translated children's books, this article addresses the collaborative process by the International Relations Committee (IRC) of the Association for Library Service to Children (ALSC) of producing such a bibliography. Sources include…

  2. National PTA Selects Outstanding Educator of the Year.

    ERIC Educational Resources Information Center

    Reynolds, Pamela

    1985-01-01

    Principal Gene Bedley of El Camino Real School in Irvine, California, is the 1985 winner of the National PTA Hearst Outstanding Educator of the Year Award. Mr. Bedley believes that education is a shared experience and builds strong relationships with teachers, parents, and children. Some of his techniques are described. (MT)

  3. Outstanding Negro High School Students: A One-Year Followup.

    ERIC Educational Resources Information Center

    Burgdorf, Kenneth

    In the fall of 1964, 4,288 students were nominated for participation in the 1st annual competition of the National Achievement Scholarship Program for outstanding Negro students. The students were divided into 3 groups--Scholars, Finalists and Commended. The highest competition status group, the Scholars, were awarded 4-year college scholarships…

  4. Outstanding Science Trade Books for Students K-12

    ERIC Educational Resources Information Center

    Texley, Juliana

    2008-01-01

    Each of these outstanding selections defies the traditional image of a child "curling up with a good book." Yes, they can be a source of great personal reading, encouraging students of all ages to stretch their skills and their imagination as they interact with the printed page. But these journeys of the scientific imagination seldom end with the…

  5. 11 CFR 9004.9 - Net outstanding qualified campaign expenses.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... outstanding campaign obligations under paragraph (a)(1) of this section shall not include any accounts payable... accounts receivable. If the committee determines that an account receivable of $500 or more, including any... records showing the original amount of the account receivable, copies of correspondence and memoranda...

  6. 29 CFR 4281.18 - Outstanding claims for withdrawal liability.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for one or more series of equal payments, the plan sponsor shall value each series of payments as an... liability payments provides for one or more payments that are not part of a series of equal payments as... time. (c) Claims against other employers. The plan sponsor shall value at zero any outstanding...

  7. Outstanding Science Trade Books for Students K-12.

    ERIC Educational Resources Information Center

    Science and Children, 2002

    2002-01-01

    Introduces a list of outstanding science trade books for grade levels K-12 in the areas of Archaeology, Anthropology, Paleontology, Biography, Life Sciences, Integrated Science, Physical Science, Science Related Careers, and Technology and Engineering. Includes information on the selection process. (YDS)

  8. Outstanding Science Trade Books for Students K-12.

    ERIC Educational Resources Information Center

    Science Scope, 2002

    2002-01-01

    Presents a list of outstanding science trade books published in 2001 for use in the K-12 grade levels. Includes the areas of archaeology, anthropology, and paleontology; biography; life sciences; integrated science; physical sciences; science related careers; and technology and engineering. Provides information on the books and the selection…

  9. Outstanding Science Trade Books for Children for 1997.

    ERIC Educational Resources Information Center

    Science and Children, 1997

    1997-01-01

    This list, published by the National Science Teachers Association and the Children's Book Council, contains titles and annotations of outstanding science trade books. It is also a popular service for teachers and media specialists. The books are grouped by topic areas including anthropology and paleontology, biography, Earth science, environment…

  10. Outstanding Science Trade Books for Children for 1998.

    ERIC Educational Resources Information Center

    Science and Children, 1998

    1998-01-01

    The books listed in this annotated bibliography were selected as outstanding children's trade books published in 1997. Titles are categorized as biography, environment and ecology, integrated science, life science, paleontology, physical science, and science-related careers. Each entry includes a descriptive annotation along with a code indicating…

  11. [American School and University Interiors Showcase: 1998 Outstanding Designs].

    ERIC Educational Resources Information Center

    Argon, Joe, Ed.

    1998-01-01

    Presents 50 outstanding awards for learning-environment designs as determined by an expert panel of judges. Each citation provides the school name and location, the name of the architectural firm, cost and square-footage figures, and a brief summary of the project. Photographs and some floorplan drawings are included. (GR)

  12. A Kaleidoscope for Learning. Outstanding School Reform Programs.

    ERIC Educational Resources Information Center

    Shaughnessy, Lana, Ed.; Morris, Joann Sebastian, Ed.

    This publication features profiles of 25 outstanding school reform programs at Bureau of Indian Affairs schools. These innovative schools have captured various aspects of school reform that encompass more challenging, real world curricula; school-to-work transitions; new ways of assessing student achievement; higher order thinking and…

  13. A Portfolio of Outstanding Americans of Mexican Descent.

    ERIC Educational Resources Information Center

    Lelevier, Benjamin, Jr.

    A cross section of Mexican American achievement is presented in a portfolio of 37 portraits of outstanding Americans of Mexican descent. Drawn in black and white on heavy paper stock by Mr. David L. Rodriguez, the sketches are suitable for display purposes. With the likenesses are biographical sketches in both English and Spanish which were…

  14. Outstanding Science Trade Book for Students K-12

    ERIC Educational Resources Information Center

    Texley, Juliana

    2010-01-01

    What makes an outstanding book for a young reader? Although it would be hard to create a rubric for every book, experienced teachers recognize them quickly. They fascinate and captivate with both their content and style. Award-winning trade books inspire young readers to want more... more information, more books, more inquiry, more science. The…

  15. World Class: USBBY's Outstanding International Books for Young People

    ERIC Educational Resources Information Center

    Angus, Carolyn

    2009-01-01

    Some of the world's best children's book artists got together to help Amnesty International celebrate the Universal Declaration of Human Rights' 60th anniversary in "We Are All Born Free," one of the 42 titles recommended by the fourth annual United States Board on Books for Young People's (USBBY) Outstanding International Books…

  16. Instructional Leadership in Greek and English Outstanding Schools

    ERIC Educational Resources Information Center

    Kaparou, Maria; Bush, Tony

    2016-01-01

    Purpose: The purpose of this paper is to examine instructional leadership (IL) in outstanding secondary schools within a centralised (Greece) and a partially decentralised (England) education context. Design/methodology/approach: Since the purpose of the study is exploratory, the researchers adopt a qualitative approach, employing a series of four…

  17. 36 CFR 292.67 - Operating plan approval-outstanding mineral rights.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...-outstanding mineral rights. 292.67 Section 292.67 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE NATIONAL RECREATION AREAS Smith River National Recreation Area Outstanding Mineral Rights § 292.67 Operating plan approval—outstanding mineral rights. (a) Upon receipt of an operating...

  18. 36 CFR 292.67 - Operating plan approval-outstanding mineral rights.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...-outstanding mineral rights. 292.67 Section 292.67 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE NATIONAL RECREATION AREAS Smith River National Recreation Area Outstanding Mineral Rights § 292.67 Operating plan approval—outstanding mineral rights. (a) Upon receipt of an operating...

  19. 36 CFR 292.67 - Operating plan approval-outstanding mineral rights.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...-outstanding mineral rights. 292.67 Section 292.67 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE NATIONAL RECREATION AREAS Smith River National Recreation Area Outstanding Mineral Rights § 292.67 Operating plan approval—outstanding mineral rights. (a) Upon receipt of an operating...

  20. 36 CFR 292.67 - Operating plan approval-outstanding mineral rights.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...-outstanding mineral rights. 292.67 Section 292.67 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE NATIONAL RECREATION AREAS Smith River National Recreation Area Outstanding Mineral Rights § 292.67 Operating plan approval—outstanding mineral rights. (a) Upon receipt of an operating...

  1. 36 CFR 292.67 - Operating plan approval-outstanding mineral rights.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...-outstanding mineral rights. 292.67 Section 292.67 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE NATIONAL RECREATION AREAS Smith River National Recreation Area Outstanding Mineral Rights § 292.67 Operating plan approval—outstanding mineral rights. (a) Upon receipt of an operating...

  2. 12 CFR 215.7 - Extensions of credit outstanding on March 10, 1979.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 12 Banks and Banking 2 2010-01-01 2010-01-01 false Extensions of credit outstanding on March 10... (REGULATION O) § 215.7 Extensions of credit outstanding on March 10, 1979. (a) Any extension of credit that was outstanding on March 10, 1979, and that would, if made on or after March 10, 1979, violate §...

  3. Mercury biogeochemistry: Paradigm shifts, outstanding issues and research needs

    NASA Astrophysics Data System (ADS)

    Sonke, Jeroen E.; Heimbürger, Lars-Eric; Dommergue, Aurélien

    2013-05-01

    Half a century of mercury research has provided scientists and policy makers with a detailed understanding of mercury toxicology, biogeochemical cycling and past and future impacts on human exposure. The complexity of the global biogeochemical mercury cycle has led to repeated and ongoing paradigm shifts in numerous mercury-related disciplines and outstanding questions remain. In this review, we highlight some of the paradigm shifts and questions on mercury toxicity, the risks and benefits of seafood consumption, the source of mercury in seafood, and the Arctic mercury cycle. We see a continued need for research on mercury toxicology and epidemiology, for marine mercury dynamics and ecology, and for a closer collaboration between observational mercury science and mercury modeling in general. As anthropogenic mercury emissions are closely tied to the energy cycle (in particular coal combustion), mercury exposure to humans and wildlife are likely to persist unless drastic emission reductions are put in place.

  4. Compendium of meteorology scientific issues of 1950 still outstanding

    NASA Technical Reports Server (NTRS)

    Vaughan, W. W.

    1986-01-01

    The Compendium of Meteorology was published in 1951 by the American Meteorological Society. A review was made of the Compendium of Meteorology to identify the studies and future needs which the authors expressed in their papers. The needs as seen by the authors are organized into sections and papers following the format of the Compendium of Meteorology. In some cases the needs they identified are as valid today as they were in 1951. In other cases one will easily be able to identify examples where significant progress has been made. It is left to the individual scientists and scientific program managers to assess whether significant progress has been made over the past thirty-five years on these outstanding scientific issues.

  5. Outstanding student papers at the 1990 Spring Meeting

    NASA Astrophysics Data System (ADS)

    Three students received awards for outstanding presentations at this year's Spring Meeting. Several AGU sections award such certificates to recognize excellence in content and presentation, and to encourage student participation in AGU's national meetings.John Stamatakos was selected by the Geomagnetism and Paleomagnetism Section for his poster presentation, “Strained Remanence in the Mauch Chunk Formation.” Stamatakos received his B.A. from Franklin and Marshall College, Lancaster, Pennsylvania, (1981), and his M.S. (1988) and Ph.D. (September, 1990) from Lehigh University, Bethlehem, Pennsylvania. He currently has a 1-year postdoctoral position at the Swiss Institute of Technology (ETH) in Zurich with William Lowrie and Ann Hirt.

  6. Outstanding challenges limiting the development of climate services in Europe

    NASA Astrophysics Data System (ADS)

    Buontempo, Carlo; Soares, Marta Bruno; Liggins, Felicity

    2016-04-01

    Climate services attempt to make the available (or forthcoming) climate knowledge more usable by decision and policy makers in the development of a climate smart society. Since the launch of the Global Framework for Climate Services in 2009 there has been an exponential increase in investment in the development and delivery of climate services, leading to an array of projects and initiatives across Europe. However, to date little attention has been given to understanding the different ways in which climate services are defined, implemented, and evaluated in Europe. In addition, other aspects such as how to pursue the necessary processes of co-production, which business models to apply, and the implications for the careers of scientists and others involved in the development of climate services are also crucial elements that need to be further examined and discussed. Such aspects are critical to the future development of climate services as they have the potential to significantly constrain the growth of climate services in Europe. Starting from a set of questions that have arisen within some of the most prominent climate services projects and initiatives in Europe, our paper highlights and expands on the outstanding challenges that need to be resolved by both the scientific community and the funders in order to ensure climate services can prosper and grow in Europe.

  7. Sophus Peter Tromholt: an outstanding pioneer in auroral research

    NASA Astrophysics Data System (ADS)

    Moss, K.; Stauning, P.

    2012-03-01

    The Danish school teacher Sophus Peter Tromholt (1851-1896) was self-taught in physics, astronomy, and auroral sciences. Still, he was one of the brightest auroral researchers of the 19th century. He was the first scientist ever to organize and analyse correlated auroral observations over a wide area (entire Scandinavia) moving away from incomplete localized observations. Tromholt documented the relation between auroras and sunspots and demonstrated the daily, seasonal and solar cycle-related variations in high-latitude auroral occurrence frequencies. Thus, Tromholt was the first ever to deduce from auroral observations the variations associated with what is now known as the auroral oval termed so by Khorosheva (1962) and Feldstein (1963) more than 80 yr later. He made reliable and accurate estimates of the heights of auroras several decades before this important issue was finally settled through Størmer's brilliant photographic technique. In addition to his three major scientific works (Tromholt, 1880a, 1882a, and 1885a), he wrote numerous short science notes and made huge efforts to collect historical auroral observations (Tromholt, 1898). Furthermore, Tromholt wrote a large number of popular science articles in newspapers and journals and made lecture tours all over Scandinavia and Germany, contributing to enhance the public educational level and awareness. He devoted most of his life to auroral research but as a self-taught scientist, he received little acclaim within the contemporary academic scientific society. With his non-academic background, trained at a college of education - not a university - he was never offered a position at a university or a research institution. However, Sophus Tromholt was an outstanding pioneer in auroral research.

  8. Outstanding Books for the College Bound: Titles and Programs for a New Generation

    ERIC Educational Resources Information Center

    Carstensen, Angela, Ed.

    2011-01-01

    Connecting teens to books they'll truly enjoy is the aim of every young adult librarian, and the completely revamped guide "Outstanding Books for the College Bound" will give teen services staff the leg up they need to make it happen. Listing nearly 200 books deemed outstanding for the college bound by the Young Adult Library Services Association…

  9. 7 CFR 1901.508 - Servicing of insured notes outstanding with investors.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 12 2012-01-01 2012-01-01 false Servicing of insured notes outstanding with investors. 1901.508 Section 1901.508 Agriculture Regulations of the Department of Agriculture (Continued) RURAL... Ownership and Insured Notes § 1901.508 Servicing of insured notes outstanding with investors. The...

  10. 11 CFR 9008.10 - Documentation of disbursements; net outstanding convention expenses.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 11 Federal Elections 1 2014-01-01 2014-01-01 false Documentation of disbursements; net outstanding... Expenditures by National Committees and Convention Committees § 9008.10 Documentation of disbursements; net... shall present these records to the Commission on request. (g) Net outstanding convention expenses....

  11. 7 CFR 1901.508 - Servicing of insured notes outstanding with investors.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 12 2010-01-01 2010-01-01 false Servicing of insured notes outstanding with investors. 1901.508 Section 1901.508 Agriculture Regulations of the Department of Agriculture (Continued) RURAL... Ownership and Insured Notes § 1901.508 Servicing of insured notes outstanding with investors. The...

  12. 7 CFR 1901.508 - Servicing of insured notes outstanding with investors.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 12 2013-01-01 2013-01-01 false Servicing of insured notes outstanding with investors. 1901.508 Section 1901.508 Agriculture Regulations of the Department of Agriculture (Continued) RURAL... Ownership and Insured Notes § 1901.508 Servicing of insured notes outstanding with investors. The...

  13. 7 CFR 1901.508 - Servicing of insured notes outstanding with investors.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 12 2014-01-01 2013-01-01 true Servicing of insured notes outstanding with investors. 1901.508 Section 1901.508 Agriculture Regulations of the Department of Agriculture (Continued) RURAL... Ownership and Insured Notes § 1901.508 Servicing of insured notes outstanding with investors. The...

  14. 7 CFR 1901.508 - Servicing of insured notes outstanding with investors.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 12 2011-01-01 2011-01-01 false Servicing of insured notes outstanding with investors. 1901.508 Section 1901.508 Agriculture Regulations of the Department of Agriculture (Continued) RURAL... Ownership and Insured Notes § 1901.508 Servicing of insured notes outstanding with investors. The...

  15. Outstanding Results--Tomorrow's Challenge. Adult Education Changes Lives: Recipients of the 1998-1999 Secretary's Awards for Outstanding Adult Education and Literacy Programs.

    ERIC Educational Resources Information Center

    Office of Vocational and Adult Education (ED), Washington, DC. Div. of Adult Education and Literacy.

    This book profiles the achievements and best practices of 10 outstanding adult education and literacy education programs in nine states that received the 1998-99 Secretary's Awards from U.S. Secretary of Education Richard W. Riley. The programs were selected from 35 nominated programs using the following criteria: program design, instructional…

  16. Some Lady! A Conversation with Dorothy Watson, Outstanding Educator in the Language Arts.

    ERIC Educational Resources Information Center

    Bishop, Rudine Sims

    2002-01-01

    Presents a conversation with Dorothy Watson, the 2002 Outstanding Educator in the Language Arts recipient. Hopes that this profile will provide insight into Dorothy Watson and her intellectual foundations, her humaneness, and her passion for teaching and learning. (SG)

  17. N.H. Dept. of Environmental Services Civil Servant Recognized for Outstanding Service

    EPA Pesticide Factsheets

    Ray Gordon, Septage Coordinator of the N.H. Dept. of Environmental Services (NHDES) is being honored with a 2014 Regional Wastewater Treatment Plant Trainer of the Year Excellence Award by EPA. Mr. Gordon has done an outstanding job over

  18. UMASS-Lowell Professor Recognized by EPA for Outstanding Lifetime Achievement Service

    EPA Pesticide Factsheets

    Donald Pottle, Professor at the UMass – Lowell, was honored recently by EPA for the outstanding job he performed over the years both facilitating & performing hands on training for thousands of wastewater treatment plant operators throughout New England.

  19. Announcing the 2013 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Yacoot, Andrew; Tadigadapa, Srinivas; Peters, Kara

    2014-07-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believe that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards'. This year awards were presented in the areas of Fluid Mechanics, Measurement Science, Precision Measurement, Sensors and Sensing Systems, and Optical and Laser-based Techniques. Although the categories mirror subject sections in the journal, the Editorial Board consider articles from all categories in the selection process. 2013 Award Winner—Fluid Mechanics Extraction of skin-friction fields from surface flow visualizations Tianshu Liu Department of Mechanical and Aerospace Engineering, Western Michigan University, Kalamazoo, MI 49008, USA The skin friction or wall shear stress, τ w, for a wall bounded turbulent flow is a quantity of fundamental importance. It is the basis for the wall unit, ν/u τ (kinematic viscosity/friction velocity: [τ w/ρ ]1/2), which establishes the intrinsic length scale in the flow. The selected paper [1] provides a comprehensive review of—and builds upon—prior techniques to obtain τ w values over an area of interest for flow past complex geometries. The quantities that can be measured by optical imaging are shown to be related to the skin friction by the optical flow equation, which in turn is solved numerically as an inverse problem via the variational approach. The paper provides a well defined set of guidelines for other investigators. Detailed examples of skin-friction measurements using luminescent oil films as well as temperature- and pressure-sensitive paints are presented. Quantitative uncertainty estimates are included in the

  20. Out of the Mouths of Babes: What Do Secondary Students Believe about Outstanding Teachers?

    ERIC Educational Resources Information Center

    Williams, Patricia; Sullivan, Sam; Kohn, Lawrence

    2012-01-01

    Pre-service teachers taking a Human Growth and Learning course and graduate students enrolled in a Classroom Management course wrote letters to secondary students to gather responses on traits of an outstanding educator. A theoretical framework about teacher effectiveness and student voice underpins the study. Findings indicate that suburban and…

  1. 7 CFR 4290.1500 - Restrictions on distributions to RBIC investors while RBIC has outstanding Leverage.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 15 2010-01-01 2010-01-01 false Restrictions on distributions to RBIC investors while... AGRICULTURE RURAL BUSINESS INVESTMENT COMPANY (âRBICâ) PROGRAM Financial Assistance for RBICs (Leverage) Distributions by Rbics with Outstanding Leverage § 4290.1500 Restrictions on distributions to RBIC...

  2. Excellence in Teaching Mathematics: Activities and Ideas from Ohio's Outstanding Teachers, 1994 District Winners.

    ERIC Educational Resources Information Center

    Borchers, Nancy, Ed.; Caniglia, Joanne, Ed.

    This document is a collection of lesson plans written by 18 of Ohio's outstanding teachers chosen by the Ohio Council of Teachers of Mathematics. Each lesson plan includes reflection questions and some contain worksheets. Lesson plan titles for primary grades (grades 1-3) are: "Munching Fractions;""Math and…

  3. [Diseases and causes of death of outstanding creative and scientific figures of XVII-XX centuries].

    PubMed

    Martsinkovs'kyĭ, I B

    2007-01-01

    The article reviewed the literature which analyzes clinical symptoms and causes of some creative and scientific figures of XVII-XX centuries. A conclusion has been made that there are not enough works with professional retrospective investigation of somatic diseases and causes of death of ukrainain outstanding cultural and scientific people in today's national medical literature.

  4. Getting It in Writing: The Quest to Become Outstanding and Effective Teachers of Writing

    ERIC Educational Resources Information Center

    Stankevich, Deborah M., Ed.

    2011-01-01

    Sixteen teachers. Sixteen journeys. All on a quest to become outstanding teachers of writing. All taking different paths to acquire and hone those skills that make a teacher effective. From kindergarten to college, teachers are faced with the daunting task of instilling the art of writing in their students. From creative writing to research, the…

  5. 7 CFR 4290.1500 - Restrictions on distributions to RBIC investors while RBIC has outstanding Leverage.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 15 2013-01-01 2013-01-01 false Restrictions on distributions to RBIC investors while...) Distributions by Rbics with Outstanding Leverage § 4290.1500 Restrictions on distributions to RBIC investors..., whenever you make a distribution to your investors you must make, at the same time, a prepayment to or...

  6. 7 CFR 4290.1500 - Restrictions on distributions to RBIC investors while RBIC has outstanding Leverage.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 15 2014-01-01 2014-01-01 false Restrictions on distributions to RBIC investors while...) Distributions by Rbics with Outstanding Leverage § 4290.1500 Restrictions on distributions to RBIC investors..., whenever you make a distribution to your investors you must make, at the same time, a prepayment to or...

  7. 7 CFR 4290.1500 - Restrictions on distributions to RBIC investors while RBIC has outstanding Leverage.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 15 2012-01-01 2012-01-01 false Restrictions on distributions to RBIC investors while...) Distributions by Rbics with Outstanding Leverage § 4290.1500 Restrictions on distributions to RBIC investors..., whenever you make a distribution to your investors you must make, at the same time, a prepayment to or...

  8. 7 CFR 4290.1500 - Restrictions on distributions to RBIC investors while RBIC has outstanding Leverage.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Restrictions on distributions to RBIC investors while...) Distributions by Rbics with Outstanding Leverage § 4290.1500 Restrictions on distributions to RBIC investors..., whenever you make a distribution to your investors you must make, at the same time, a prepayment to or...

  9. Giving Back: Outstanding Alumni Stress the Importance of Community and Public Service

    ERIC Educational Resources Information Center

    Ullman, Ellen

    2010-01-01

    This article features several community college alumni who share how community colleges contributed to their success later in their lives and how they are inspired to give back. These outstanding alumni stress the importance of community and public service. They include: (1) Dr. Richard Carmona, U.S. Surgeon General from 2002 to 2006; (2) Colonel…

  10. Outstanding Science Trade Books for Students K-12: Books Published in 2002.

    ERIC Educational Resources Information Center

    Science and Children, 2003

    2003-01-01

    Provides a list of outstanding science trade books for elementary and secondary students published in 2002. Focuses on the areas of archaeology, anthropology, paleontology, biography, environment and ecology, life science, physical science, and science-related careers. Presents the selection criteria. (YDS)

  11. Outstanding Science Trade Books for Children--2001: Books Published in 2000.

    ERIC Educational Resources Information Center

    Science and Children, 2001

    2001-01-01

    Lists outstanding science trade books published in 2000. Explains the selection process and places the books into categories including: (1) Archaeology, Anthropology, and Paleontology; (2) Biography; (3) Earth and Space Science; (4) Environment and Ecology; (5) Life Science; (6) Physical Science; (7) Science-Related Careers; and (8) Technology and…

  12. The Secretary's Awards for Outstanding Vocational-Technical Education Programs. 1995.

    ERIC Educational Resources Information Center

    Office of Vocational and Adult Education (ED), Washington, DC.

    This publication describes the 12 winning programs and the 9 semifinalists of the 1995 U.S. Secretary of Education's Awards for Outstanding Vocational-Technical Education Programs. The awards program was established in 1981 to recognize excellence in local school-to-work and vocational-technical education programs, services, and activities that…

  13. 31 CFR 585.419 - Effect of E.O. 12846 on outstanding licenses and authorizations.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Effect of E.O. 12846 on outstanding licenses and authorizations. 585.419 Section 585.419 Money and Finance: Treasury Regulations Relating to... AND HERZEGOVINA SANCTIONS REGULATIONS Interpretations § 585.419 Effect of E.O. 12846 on...

  14. Outstanding Science Trade Books for Students K-12 (Books Published in 2009)

    ERIC Educational Resources Information Center

    Science Teacher, 2010

    2010-01-01

    What makes an outstanding book for a young reader? Although it would be hard to create a rubric for every book, experienced teachers recognize them quickly. They fascinate and captivate with both their content and style. Award-winning trade books inspire young readers to want more... more information, more books, more inquiry, more science. The…

  15. A New "Picture of the World": The NCTE Orbis Pictus Award for Outstanding Nonfiction for Children.

    ERIC Educational Resources Information Center

    Vardell, Sylvia

    1991-01-01

    Provides information and discussion of the NCTE Orbis Pictus Award for Outstanding Nonfiction for Children. Explains what makes a good nonfiction book for children and discusses several books that have been honored in the first two years of the award. (MG)

  16. Performance Management or Managing Performance? Supporting a Vision to Become Outstanding

    ERIC Educational Resources Information Center

    Morton, Sam

    2011-01-01

    This paper provides an account of how performance management is operating in a rural primary school in the county of Rutland, UK, which aspires to provide an outstanding standard of education for its pupils. The paper begins by outlining the existing regulations for the operation of performance management in schools, before going on to explain how…

  17. Two Outstanding Investigator Awards Go to Division of Cancer Prevention Grantees | Division of Cancer Prevention

    Cancer.gov

    NCI's Outstanding Investigator Award supports accomplished leaders in cancer research, who are providing significant contributions toward understanding cancer and developing applications that may lead to a breakthrough in biomedical, behavioral, or clinical cancer research. The Award provides up to $600,000 in direct costs per year for 7 years, allowing substantial time for funded investigators to take greater risks and be more adventurous in their research. Two of these awards have been made to Division of Cancer Prevention investigators: |

  18. A comparison of teacher and principal perception of an outstanding biology teacher

    NASA Astrophysics Data System (ADS)

    Searles, William E.; Ng, Raymond W. M.

    The purpose of this study was to ascertain the level of agreement or disagreement between principals and teachers when using established criteria to measure the effectiveness of a biology teacher. To obtain information regarding their perceptions of an outstanding biology teacher, twenty-two principals and forty-one biology teachers were chosen randomly from English-speaking high schools within a 50 km radius of metropolitan Montreal, Quebec, Canada. The measuring instrument was a modified version of Dieter's questionnaire that evolved from his doctoral study of the National Association of Biology Teachers-Outstanding Biology Teacher Award Program. The data collected from the two populations were tested using one-way ANOVA (analysis of variance) or by applying normal approximation. Results indicated that both the principals and teachers agree on the relative importance of most criteria, particularly those related to the teacher's classroom behavior and academic background in biology. From such results, it was possible to construct one stereotype of the outstanding biology teacher. A number of recommendations were made from the results of the study, which were directed to the (a) teachers and their professional organization, (b) principals and the school boards, (c) teacher training institutions, and (d) researchers in teacher evaluation.

  19. Defining core elements and outstanding practice in Nutritional Science through collaborative benchmarking.

    PubMed

    Samman, Samir; McCarthur, Jennifer O; Peat, Mary

    2006-01-01

    Benchmarking has been adopted by educational institutions as a potentially sensitive tool for improving learning and teaching. To date there has been limited application of benchmarking methodology in the Discipline of Nutritional Science. The aim of this survey was to define core elements and outstanding practice in Nutritional Science through collaborative benchmarking. Questionnaires that aimed to establish proposed core elements for Nutritional Science, and inquired about definitions of " good" and " outstanding" practice were posted to named representatives at eight Australian universities. Seven respondents identified core elements that included knowledge of nutrient metabolism and requirement, food production and processing, modern biomedical techniques that could be applied to understanding nutrition, and social and environmental issues as related to Nutritional Science. Four of the eight institutions who agreed to participate in the present survey identified the integration of teaching with research as an indicator of outstanding practice. Nutritional Science is a rapidly evolving discipline. Further and more comprehensive surveys are required to consolidate and update the definition of the discipline, and to identify the optimal way of teaching it. Global ideas and specific regional requirements also need to be considered.

  20. Outstanding Research Issues in Systematic Technology Prioritization for New Space Missions: Workshop Proceedings

    NASA Technical Reports Server (NTRS)

    Weisbin, C. R. (Editor)

    2004-01-01

    A workshop entitled, "Outstanding Research Issues in Systematic Technology Prioritization for New Space Missions," was convened on April 21-22, 2004 in San Diego, California to review the status of methods for objective resource allocation, to discuss the research barriers remaining, and to formulate recommendations for future development and application. The workshop explored the state-of-the-art in decision analysis in the context of being able to objectively allocate constrained technical resources to enable future space missions and optimize science return. This article summarizes the highlights of the meeting results.

  1. Solving multistage stochastic programming models of portfolio selection with outstanding liabilities

    SciTech Connect

    Edirisinghe, C.

    1994-12-31

    Models for portfolio selection in the presence of an outstanding liability have received significant attention, for example, models for pricing options. The problem may be described briefly as follows: given a set of risky securities (and a riskless security such as a bond), and given a set of cash flows, i.e., outstanding liability, to be met at some future date, determine an initial portfolio and a dynamic trading strategy for the underlying securities such that the initial cost of the portfolio is within a prescribed wealth level and the expected cash surpluses arising from trading is maximized. While the trading strategy should be self-financing, there may also be other restrictions such as leverage and short-sale constraints. Usually the treatment is limited to binomial evolution of uncertainty (of stock price), with possible extensions for developing computational bounds for multinomial generalizations. Posing as stochastic programming models of decision making, we investigate alternative efficient solution procedures under continuous evolution of uncertainty, for discrete time economies. We point out an important moment problem arising in the portfolio selection problem, the solution (or bounds) on which provides the basis for developing efficient computational algorithms. While the underlying stochastic program may be computationally tedious even for a modest number of trading opportunities (i.e., time periods), the derived algorithms may used to solve problems whose sizes are beyond those considered within stochastic optimization.

  2. Sourcing Program: To identify outstanding women and ethnic minorities in research and research management

    SciTech Connect

    Nissen, S.H.

    1991-08-01

    To meet the challenges of the changing demographics and a projected shortage of technically trained workers in the 21st century, Lawrence Livermore National (LLNL) is increasing its commitment to develop a diverse work force with the abilities to carry out the Laboratory's missions. In addition to the recruitment programs already established at LLNL, a sourcing program to identify outstanding women and minorities in research and research management was initiated in the summer of 1990. A research methodology, time table, selection criteria, and data generation strategy were designed and implemented for this program. Through extensive contacts with R D facilities, women's and minority professional organizations, national research councils, technical professional societies and universities, other sourcing programs were investigated and evaluated and a network of contacts and resources was developed. This report describes the design and implementation of the sourcing program targeting outstanding women and minorities in science and engineering. It details the investigation and evaluation of sourcing programs in other R D facilities and provides information regarding methods and sources used to identify potential candidates. Conclusions and recommendations are presented. 10 refs., 5 tabs.

  3. A novel poly(acrylic acid-co-acrylamide)/diatomite composite flocculant with outstanding flocculation performance.

    PubMed

    Xu, Kun; Liu, Yao; Wang, Yang; Tan, Ying; Liang, Xuecheng; Lu, Cuige; Wang, Haiwei; Liu, Xiusheng; Wang, Pixin

    2015-01-01

    Series of anionic flocculants with outstanding flocculation performance, poly(acrylic acid-co-acrylamide)/diatomite composite flocculants (PAAD) were successfully prepared through aqueous solution copolymerization and applied to flocculate from oil-field fracturing waste-water. The structure of PAAD was characterized by Fourier transform infra-red spectroscopy, (13)C nuclear magnetic resonance and X-ray diffraction tests, and its properties were systematically evaluated by viscometer, thermogravimetry analysis and flocculation measurements. Furthermore, the influences of various reaction parameters on the apparent viscosity of flocculant solution were studied, and the optimum synthesis condition was determined. The novel composite flocculants exhibited outstanding flocculation properties. Specifically, the dosage of composite flocculants that could make the transmittance of treated wastewater exceed 90% was only approximately 12-35 ppm, which was far lower than that of conventional flocculants. Meanwhile, the settling time was lower than 5 s, which was similar to that of conventional flocculants. This was because PAAD flocculants had a higher absorption capacity, and larger chain extending space than conventional linear flocculants, which could refrain from the entanglement of linear polymer chains and significantly improve flocculation capacity.

  4. EDITORIAL: Announcing the 2012 Measurement Science and Technology Outstanding Paper Awards Announcing the 2012 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Yacoot, Andrew; Regtien, Paul; Peters, Kara

    2013-07-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believes that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards'. This year awards were presented in the areas of 'Measurement Science' and 'Fluid Mechanics'. Although the categories mirror subject sections in the journal, the Editorial Board consider articles from all categories in the selection process. 2012 Award Winners—Measurement Science Physical characterization and performance evaluation of an x-ray micro-computed tomography system for dimensional metrology applications J Hiller1, M Maisl2 and L M Reindl3 1 Department of Mechanical Engineering, Technical University of Denmark (DTU), Produktionstorvet, Building 425, 2800 Kgs Lyngby, Denmark 2 Development Center for X-Ray Technology (EZRT), Fraunhofer Institute for Non-Destructive Testing (IZFP), Campus E3 1, 66123 Saarbrücken, Germany 3 Laboratory for Electrical Instrumentation, Institute for Microsystem Technology (IMTEK), University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany This year's award goes to another paper [1] dealing with micro-measurements, using a scientific measurement technique that is both old and traditional. However, it is the advent of modern technology with computational techniques that have offered new insights into the capability of the measurement method. The paper describes an x-ray computed tomography (CT) system. Such systems are increasingly used in production engineering, where non-destructive measurements of the internal geometries of workpieces can be made with high information density. CT offers important alternatives to tactile

  5. Outstanding Questions In First Amendment Law Related To Food Labeling Disclosure Requirements For Health.

    PubMed

    Pomeranz, Jennifer L

    2015-11-01

    The federal and state governments are increasingly focusing on food labeling as a method to support good health. Many such laws are opposed by the food industry and may be challenged in court, raising the question of what is legally feasible. This article analyzes outstanding questions in First Amendment law related to commercial disclosure requirements and conducts legal analysis and policy evaluation for three current policies. These include the Food and Drug Administration's draft regulation requiring an added sugar disclosure on the Nutrition Facts panel, California's proposed sugar-sweetened beverage safety warning label bill, and Vermont's law requiring labels of genetically engineered food to disclose this information. I recommend several methods for policy makers to enact food labeling laws within First Amendment parameters, including imposing factual commercial disclosure requirements, disclosing the government entity issuing a warning, collecting evidence, and identifying legitimate governmental interests.

  6. [The outstanding figure of domestic military and civil public health services].

    PubMed

    Pavlovskiĭ, L N

    2011-01-01

    The article presents data on the outstanding Soviet theorist and the organizer of Health Care, full member of Academy of Medical Science of the U.S.S.R., the Hero of Socialist Work, the colonel general of a health service E.I. Smirnov who has developed a lot on the theory and practice of civil and military public health services. Its contribution to communication between organizational forms of medical maintenance of armies and principles of military art, and also dependence of quality of medical aid to the population on the organizational structure of a treatment-and-prophylactic network were considered. E.I. Smirnova's personal role in improvement of organizational forms of medical maintenance of armies, theory and practice development of intermediate treatments with evacuation to destination, in the organization of antiepidemic maintenance of armies and development number of actual questions of modern military medicine are shown in the article.

  7. Graphene with outstanding anti-irradiation capacity as multialkylated cyclopentanes additive toward space application

    PubMed Central

    Fan, Xiaoqiang; Wang, Liping

    2015-01-01

    Multialkylated cyclopentanes (MACs), a class of synthetic hydrocarbon fluid have attracted intensive interest as possible space lubricants due to a series of unique physical and chemical properties. Here, we used graphene with high mechanical strength and chemical inertness as lubricant additive to explore its potential for space application. The effects of space irradiation on graphene and the tribological properties of graphene as lubricant additive were firstly investigated in detail under simulated space environment composed of high vacuum, high/low temperature and irradiation. Results demonstrate that graphene not only possesses outstanding anti–irradiation capacity but also significantly improves the space performance and tribological properties of MACs, which depends on the excellent physicochemical properties and high load-carrying ability of graphene as well as more effective separation of the sliding surfaces. PMID:26224254

  8. Outstanding conference paper award 2014 IEEE nuclear and space radiation effects conference

    SciTech Connect

    Dodds, Nathaniel Anson; Schwank, James R.; Shaneyfelt, Marty R.; Dodd, Paul E.; Doyle, Barney Lee; Trinczek, Michael; Blackmore, Ewart W.; Rodbell, Kenneth P.; Reed, Robert A.; Pellish, Jonathan A.; LaBel, Kenneth A.; Marshall, Paul W.; Swanson, Scot E.; Vizkelethy, Gyorgy; Van Deusen, Stuart B.; Sexton, Frederick W.; Martinez, Marino John

    2014-12-01

    The recipients of the 2014 NSREC Outstanding Conference Paper Award are Nathaniel A. Dodds, James R. Schwank, Marty R. Shaneyfelt, Paul E. Dodd, Barney L. Doyle, Michael Trinczek, Ewart W. Blackmore, Kenneth P. Rodbell, Michael S. Gordon, Robert A. Reed, Jonathan A. Pellish, Kenneth A. LaBel, Paul W. Marshall, Scot E. Swanson, Gyorgy Vizkelethy, Stuart Van Deusen, Frederick W. Sexton, and M. John Martinez, for their paper entitled "Hardness Assurance for Proton Direct Ionization-Induced SEEs Using a High-Energy Proton Beam." For older CMOS technologies, protons could only cause single-event effects (SEEs) through nuclear interactions. Numerous recent studies on 90 nm and newer CMOS technologies have shown that protons can also cause SEEs through direct ionization. Furthermore, this paper develops and demonstrates an accurate and practical method for predicting the error rate caused by proton direct ionization (PDI).

  9. Outstanding visible photocatalytic activity of a new mixed bismuth titanatate material

    NASA Astrophysics Data System (ADS)

    Zambrano, P.; Sayagués, M. J.; Navío, J. A.; Hidalgo, M. C.

    2017-02-01

    In this work, a new photocatalyst based on bismuth titanates with outstanding visible photocatalytic activity was prepared by a facile hydrothermal method. The synthesised material showed visible activity as high as UV activity of commercial TiO2 P25 under the same experimental conditions for phenol degradation. A wide characterisation of the photocatalyst was performed. The material was composed of three phases; majority of Bi20TiO32 closely interconnected to Bi4Ti3O12 and amorphous TiO2. The high visible activity showed by this material could be ascribed to a combination of several features; i.e. low band gap energy value (2.1 eV), a structure allowing a good separation path for visible photogenerated electron-holes pairs and a relatively high surface area. This photocatalyst appeared as a promising material for solar and visible applications of photocatalysis.

  10. Outstanding conference paper award 2014 IEEE nuclear and space radiation effects conference

    DOE PAGES

    Dodds, Nathaniel Anson; Schwank, James R.; Shaneyfelt, Marty R.; ...

    2014-12-01

    The recipients of the 2014 NSREC Outstanding Conference Paper Award are Nathaniel A. Dodds, James R. Schwank, Marty R. Shaneyfelt, Paul E. Dodd, Barney L. Doyle, Michael Trinczek, Ewart W. Blackmore, Kenneth P. Rodbell, Michael S. Gordon, Robert A. Reed, Jonathan A. Pellish, Kenneth A. LaBel, Paul W. Marshall, Scot E. Swanson, Gyorgy Vizkelethy, Stuart Van Deusen, Frederick W. Sexton, and M. John Martinez, for their paper entitled "Hardness Assurance for Proton Direct Ionization-Induced SEEs Using a High-Energy Proton Beam." For older CMOS technologies, protons could only cause single-event effects (SEEs) through nuclear interactions. Numerous recent studies on 90 nmmore » and newer CMOS technologies have shown that protons can also cause SEEs through direct ionization. Furthermore, this paper develops and demonstrates an accurate and practical method for predicting the error rate caused by proton direct ionization (PDI).« less

  11. Inherently Chiral Macrocyclic Oligothiophenes: Easily Accessible Electrosensitive Cavities with Outstanding Enantioselection Performances

    PubMed Central

    Sannicolò, Francesco; Mussini, Patrizia R; Benincori, Tiziana; Cirilli, Roberto; Abbate, Sergio; Arnaboldi, Serena; Casolo, Simone; Castiglioni, Ettore; Longhi, Giovanna; Martinazzo, Rocco; Panigati, Monica; Pappini, Marco; Quartapelle Procopio, Elsa; Rizzo, Simona

    2014-01-01

    Linear conjugated oligothiophenes of variable length and different substitution pattern are ubiquitous in technologically advanced optoelectronic devices, though limitations in application derive from insolubility, scarce processability and chain-end effects. This study describes an easy access to chiral cyclic oligothiophenes constituted by 12 and 18 fully conjugated thiophene units. Chemical oxidation of an “inherently chiral” sexithiophene monomer, synthesized in two steps from commercially available materials, induces the formation of an elliptical dimer and a triangular trimer endowed with electrosensitive cavities of different tunable sizes. Combination of chirality with electroactivity makes these molecules unique in the current oligothiophenes literature. These macrocycles, which are stable and soluble in most organic solvents, show outstanding chiroptical properties, high circularly polarized luminescence effects and an exceptional enantiorecognition ability. PMID:25263106

  12. EDITORIAL: Announcing the 2011 Measurement Science and Technology Outstanding Paper Awards Announcing the 2011 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul; Tatam, Ralph

    2012-06-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believe that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards'. This year awards were presented in the areas of 'Measurement Science', 'Fluid Mechanics' and 'Precision Measurement'. Although the categories mirror subject sections in the journal, the Editorial Board consider articles from all categories in the selection process. 2011 Award Winners—Measurement Science Simultaneous measurement of internal and surrounding flows of a moving droplet using multicolour confocal micro-particle image velocimetry (micro-PIV) M Oishi, H Kinoshita, T Fujii and M Oshima Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo 153-8505, Japan Interfaculty Initiative in Information Studies, The University of Tokyo, 4-6-1 Komaba, Meguro-Ku, Tokyo 153-8505, Japan Whilst the award last year [1] was concerned with the application of microscopy to ultra-high vacuum dynamic force measurements, this year's award [2] goes to another micro-measurement technique, one concerned with measurements related to particle image velocimetry. The technique relates to multiphase flow in microfluidic devices, and offers a non-contact methodology for examining simultaneous dynamic interactions between flows having different phases. There are several features which make this an excellent paper. It introduces its subject with a clear and concise description of previous advances in related measurement methods, before introducing the additional feature of two-colour fluorescent monitoring of flow in two independent optical channels. By adapting a

  13. Outstanding in the Field II: Citizen Science Experiences for Middle Schools in Northeast Louisiana

    NASA Astrophysics Data System (ADS)

    Case Hanks, A. T.; Bhattacharjee, J.; Clark, L.; Pugh, A.

    2012-12-01

    In order to prepare middle school teachers for the next generation sciences standards and the new common core, the University of Louisiana at Monroe (ULM) Colleges of Arts and Sciences and Education and Human Development launched the Outstanding in the Field II program. Through the creation of a mesonet with the weather stations at middle school sites, this project aims to foster and enrich the experience of teacher/student-collected data while logging the data into a larger scientific database, producing citizen scientists. By empowering students and teachers to actively participate in 'real science', they generate data to be analyzed from both the physical and life science perspective and thus, highlight the next generation science standards and core disciplinary ideas. This project also promotes collaboration between the life and physical sciences while highlighting scientific practices and cross-cutting concepts within science and literacy. To ensure the successful implementation of the program, faculty and will provide several follow-up workshops during the academic year. These workshops will focus on the common core connections of math and literacy as well as ways in which the project can be supported at each site through face-to-face observations and online collaborations. This year-long program began with a field intensive workshop in July 2012 and enrolled 30 6th, 7th, and 8th science teachers from the Northeast region of Louisiana to provide a genuine scientific experience that would be taken back and applied within the classroom. By becoming students, teachers began by collecting data in the field and establishing and refining the intricate connection between real- world experiments and science taught in classrooms. . They returned to the ULM campus to build and deploy weather stations. Teachers were then tasked with the development of a plan to install the weather station and collect data at their school site with emphasis on implementation within their

  14. EDITORIAL: Announcing the 2010 Measurement Science and Technology Outstanding Paper Awards Announcing the 2010 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul

    2011-06-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believes that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards' in four subject categories: Fluid Mechanics; Measurement Science; Precision Measurements; and Sensors and Sensing Systems. Although the categories mirror subject sections in the journal, the Editorial Board consider articles from all categories in the selection process. This year, for example, the winning article of the Outstanding Paper Award in Sensors and Sensing Systems was an article published in the 'Novel Instrumentation' section. 2010 Award Winners—Fluid Mechanics Assessment of pressure field calculations from particle image velocimetry measurements John J Charonko, Cameron V King, Barton L Smith and Pavlos P Vlachos Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24060, USA VT-WFU School of Biomedical Engineering & Sciences, Virginia Tech, Blacksburg, VA 24060, USA Mechanical and Aerospace Engineering Department, Utah State University, UMC4130, Logan, UT 84322, USA Measuring p(t) in the interior of a flow field is one of the most challenging measurements in our field of study. An accurate knowledge of these interior pressures is of considerable value for fundamental studies. Since the gradient of the pressure appears in the Navier-Stokes equations, a knowledge of the pressure at a bounding surface followed by operations on the measured velocity components within the flow field can be analytically related to the pressure at an interior location. Bringing this long-recognized possibility to operational status has been greatly aided by the advent of

  15. Mathematics applied to the climate system: outstanding challenges and recent progress

    PubMed Central

    Williams, Paul D.; Cullen, Michael J. P.; Davey, Michael K.; Huthnance, John M.

    2013-01-01

    The societal need for reliable climate predictions and a proper assessment of their uncertainties is pressing. Uncertainties arise not only from initial conditions and forcing scenarios, but also from model formulation. Here, we identify and document three broad classes of problems, each representing what we regard to be an outstanding challenge in the area of mathematics applied to the climate system. First, there is the problem of the development and evaluation of simple physically based models of the global climate. Second, there is the problem of the development and evaluation of the components of complex models such as general circulation models. Third, there is the problem of the development and evaluation of appropriate statistical frameworks. We discuss these problems in turn, emphasizing the recent progress made by the papers presented in this Theme Issue. Many pressing challenges in climate science require closer collaboration between climate scientists, mathematicians and statisticians. We hope the papers contained in this Theme Issue will act as inspiration for such collaborations and for setting future research directions. PMID:23588054

  16. Interactions between learning and evolution: the outstanding strategy generated by the Baldwin effect.

    PubMed

    Suzuki, Reiji; Arita, Takaya

    2004-11-01

    The Baldwin effect is known as an possible interaction between learning and evolution, where individual lifetime learning can influence the course of evolution without using any Lamarckian mechanism. Our concern is to consider the Baldwin effect in dynamic environments, especially when there is no explicit optimal solution through generations and this solution depends only on interactions among agents. We adopted the iterated Prisoner's Dilemma as a dynamic environment, introduced phenotypic plasticity into its strategies, and conducted computational experiments, in which phenotypic plasticity is allowed to evolve. The Baldwin effect was observed in the experiments as follows: First, strategies with enough plasticity spread, which caused a shift from defect-oriented populations to cooperative populations. Second, these strategies were replaced by a strategy with a modest amount of plasticity generated by interactions between learning and evolution. By making three kinds of analysis, we have shown that this strategy provides outstanding performance in comparison with other deterministic strategies. Further experiments towards open-ended evolution have also been conducted so as to generalize our results.

  17. EDITORIAL: Announcing the 2005 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul

    2006-06-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believes that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, in 2005 the Editorial Board decided to present 'Outstanding Paper Awards' in four subject categories: Fluid Mechanics; Measurement Science; Precision Measurements; and Sensors and Sensing Systems. 2005 Award Winners—Fluid Mechanics The Fluid Mechanics working group, chaired by Professor John Foss, was unanimous in its recommendation for the paper authored by J Chen and J Katz (Johns Hopkins University, USA) 'Elimination of peak-locking error in PIV analysis using the correlation mapping method', published in volume 16, issue 8, pp 1605 1618. The essence of the following citation was provided by Board Member Dr Mark Wernet: The paper of Chen and Katz describes a technique for eliminating the 'peak locking' bias error endemic to estimating the PIV correlation peak location. Particle image velocimetry (PIV) is used widely in both fundamental and applied fluid mechanics. In essence, a two-dimensional velocity map is extracted from two successive high-resolution images of light scattered by minute tracer particles. The incident light is derived from two laser beams which have been expanded into sheets. A precise time delay is imposed between the two laser light sheets. The cross-correlation of the scattered light intensity within corresponding small interrogation regions in the two images gives the displacement of the particles and hence the local velocity. Typically, in PIV processing, the correlation peak location is determined by fitting a curve through the correlation peak. This process is known to suffer from a bias error where the estimated

  18. EDITORIAL: Announcing the 2008 Measurement Science and Technology Outstanding Paper Awards Announcing the 2008 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul

    2009-05-01

    From 1991 to 2004, Measurement Science and Technology had awarded a Best Paper prize. The Editorial Board of this journal believed that such a prize was an opportunity to thank authors for submitting their work, and that it served as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board Members have presented 'Outstanding Paper Awards' in four subject categories: Measurement Science; Fluid Mechanics; Precision Measurements; and Sensors and Sensing Systems. 2008 Award Winners—Measurement Science Noise level estimation in weakly nonlinear slowly time-varying systems J R M Aerts, J Lataire, R Pintelon and J J J Dirckx Laboratory of Biomedical Physics, Universiteit Antwerpen, Groenenborgerlaan 171, 2020 Antwerp, Belgium and Department of Fundamental Electricity and Instrumentation (ELEC), Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium This paper [1] examines new methods to perform noise estimation in weakly nonlinear time-varying systems. In a clear presentation that describes the problem, the paper concentrates on weakly nonlinear phenomena in the acoustic regime. However, both the concepts and theory developed have wide applicability in other fields within measurement science wherever there is a time-varying nonlinear response. The theory uses two methods to estimate noise. The first is called the background frequency method, and the second is a periodic difference method. Both methods have their advantages, and disadvantages, which the authors highlight in a balanced account. They also spend some effort in validating the two approaches. Just as importantly, applications of the theory are presented as two experimental case histories. The first is a study of a vibrating membrane from a high quality microphone. This is an example of a time-invariant system, and the

  19. 43 CFR 3195.35 - What happens if I have an outstanding obligation to purchase refined helium under a Helium...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... obligation to purchase refined helium under a Helium Distribution Contract? 3195.35 Section 3195.35 Public... OF THE INTERIOR MINERALS MANAGEMENT (3000) HELIUM CONTRACTS Federal Helium Supplier Requirements § 3195.35 What happens if I have an outstanding obligation to purchase refined helium under a...

  20. 43 CFR 3195.35 - What happens if I have an outstanding obligation to purchase refined helium under a Helium...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... obligation to purchase refined helium under a Helium Distribution Contract? 3195.35 Section 3195.35 Public... OF THE INTERIOR MINERALS MANAGEMENT (3000) HELIUM CONTRACTS Federal Helium Supplier Requirements § 3195.35 What happens if I have an outstanding obligation to purchase refined helium under a...

  1. 43 CFR 3195.35 - What happens if I have an outstanding obligation to purchase refined helium under a Helium...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... obligation to purchase refined helium under a Helium Distribution Contract? 3195.35 Section 3195.35 Public... OF THE INTERIOR MINERALS MANAGEMENT (3000) HELIUM CONTRACTS Federal Helium Supplier Requirements § 3195.35 What happens if I have an outstanding obligation to purchase refined helium under a...

  2. Unconscious and Unnoticed Professional Practice within an Outstanding School for Children and Young People with Complex Learning Difficulties and Disabilities

    ERIC Educational Resources Information Center

    Crombie, Richard; Sullivan, Lesley; Walker, Kate; Warnock, Rebecca

    2014-01-01

    This article describes a three-year project undertaken at Pear Tree School for children and young people with severe and multiple and profound learning difficulties. Lesley Sullivan, the school's head teacher, believed that much of the value within the work of this outstanding school went unidentified by existing approaches to planning, monitoring…

  3. Here's Your Syllabus, See You Next Week: A Review of the First Day Practices of Outstanding Professors

    ERIC Educational Resources Information Center

    Iannarelli, Barbara A.; Bardsley, Mary Ellen; Foote, Chandra J.

    2010-01-01

    Faculty teaching courses at the higher education level employ a wide variety of strategies on the first day of class. Little research has been conducted on the efficacy of these practices. This study examines the first-day practices of instructors of higher education classes who have been recognized as outstanding practitioners by their respective…

  4. 43 CFR 3195.35 - What happens if I have an outstanding obligation to purchase refined helium under a Helium...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... obligation to purchase refined helium under a Helium Distribution Contract? 3195.35 Section 3195.35 Public... OF THE INTERIOR MINERALS MANAGEMENT (3000) HELIUM CONTRACTS Federal Helium Supplier Requirements § 3195.35 What happens if I have an outstanding obligation to purchase refined helium under a...

  5. Blue Ribbon Schools: Outstanding Practices in Geography Education, 1989-90 and History Education, 1990-92.

    ERIC Educational Resources Information Center

    Office of Educational Research and Improvement (ED), Washington, DC. Programs for the Improvement of Practice.

    This document is a report on 16 schools selected as Blue Ribbon Schools for their outstanding programs in geography or history. The report is divided into four parts. The first part discusses the curricular frameworks and guidelines for elementary and secondary schools in geography education. Areas discussed include: (1) current achievement and…

  6. 41 CFR 301-71.304 - Are we responsible for ensuring the collection of outstanding travel advances?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... ensuring the collection of outstanding travel advances? 301-71.304 Section 301-71.304 Public Contracts and Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES AGENCY RESPONSIBILITIES 71-AGENCY TRAVEL ACCOUNTABILITY REQUIREMENTS Accounting for Travel Advances § 301-71.304 Are...

  7. Blood Falls: A novel management approach for a subglacial feature of outstanding scientific importance

    NASA Astrophysics Data System (ADS)

    Carr, J. R.; Penhale, P. A.; Dahood, A.; Biletnikoff, N.; Harris, C. M.

    2012-04-01

    Blood Falls is a subglacial feature located in the ablation zone of the Taylor Glacier, Taylor Valley, McMurdo Dry Valleys, Antarctica. Blood Falls has a unique physical configuration, microbial ecology and geochemistry and consists of a subglacial brine reservoir and an iron-rich, saline surface discharge at the Taylor Glacier terminus. The feature provides a rare opportunity to sample properties of a subglacial reservoir and its ecosystem without the need for direct contact and is a key site for exobiological studies. The Blood Falls subglacial feature is globally unique and of outstanding scientific importance. As such, it warrants special protection from potential damage by drilling and/or surface activities. Moreover, currently subglacial environments are not represented in the Antarctic protected area network. To address these points, the United States National Science Foundation is working with the scientific community to develop at Blood Falls the first subglacial protected area in Antarctica. The protected area aims to maintain the integrity of the Blood Falls system, whilst allowing continued access for scientific and management purposes. Novel management approaches are being designed to protect the values of the site in three dimensions. Specific guidelines on activities conducted within the area, most notably drilling and coring, are being defined in a management plan. This new approach incorporates uncertainties in the location of the Blood Falls brine reservoir and the connectivity of the subglacial hydrological system of the Taylor Glacier. The management approaches employed at Blood Falls draw on the experience of the subglacial research community and potentially offer an effective framework for the protection of other subglacial environments.

  8. What makes astronomical heritage valuable? Identifying potential Outstanding Universal Value in cultural properties relating to astronomy

    NASA Astrophysics Data System (ADS)

    Cotte, Michel

    2015-08-01

    The communication will present the today situation of astronomical and archaeo-astronomical heritage related to the World Heritage Convention along the past years till today. Some parallel events and works promoted strongly as the IAU - UNESCO initiative for the “year of astronomy” (2009). It was followed by a joint program by IAU and ICOMOS who is an official advisory body assessing the World Heritage Committee for the evaluation of nomination dossiers. Result of that works is an important publication by around 40 authors coming from 20 different countries all around the World: Heritage Sites of Astronomy and Archaeoastronomy in context of the UNESCO World Heritage Convention (2010-2011). A second volume is under preparation (2015). It was also accompanied by some initiatives like “Windows to the Universe” organisation and parallel constitution of local “Starlight Reserves”. Some regional meetings studying specific facets or regional heritage in the field giving significant knowledge progresses also accompanied global trend for astronomical heritage.WH assessment is defined by a relatively strict format and methodology. Key word is “demonstration of an Outstanding Universal Value” to justify the WH Listing by the Committee. Communication first examines requirements and evaluation practices about of the OUV demonstration for a given place in context of astronomical or archaeo-astronomical heritage. That means examination of the tangible attributes, inventory of the property in terms of unmoveable and moveable components and inventory of intangible issues related to the history (history of the place in context of the history of astronomy and cultural history). That is also related to apply to the site concept of integrity and authenticity level of the place and comparison with other similar places (WH site already listed, national WH Tentative List, other similar places in the region).Second issue of the communication is to give a glimpse on the

  9. Final report on LDRD project : outstanding challenges for AlGaInN MOCVD.

    SciTech Connect

    Mitchell, Christine Charlotte; Follstaedt, David Martin; Russell, Michael J.; Cross, Karen Charlene; Wang, George T.; Creighton, James Randall; Allerman, Andrew Alan; Koleske, Daniel David; Lee, Stephen Roger; Coltrin, Michael Elliott

    2005-03-01

    The AlGaInN material system is used for virtually all advanced solid state lighting and short wavelength optoelectronic devices. Although metal-organic chemical vapor deposition (MOCVD) has proven to be the workhorse deposition technique, several outstanding scientific and technical challenges remain, which hinder progress and keep RD&A costs high. The three most significant MOCVD challenges are: (1) Accurate temperature measurement; (2) Reliable and reproducible p-doping (Mg); and (3) Low dislocation density GaN material. To address challenge (1) we designed and tested (on reactor mockup) a multiwafer, dual wavelength, emissivity-correcting pyrometer (ECP) for AlGaInN MOCVD. This system simultaneously measures the reflectance (at 405 and 550 nm) and emissivity-corrected temperature for each individual wafer, with the platen signal entirely rejected. To address challenge (2) we measured the MgCp{sub 2} + NH{sub 3} adduct condensation phase diagram from 65-115 C, at typical MOCVD concentrations. Results indicate that it requires temperatures of 80-100 C in order to prevent MgCp{sub 2} + NH{sub 3} adduct condensation. Modification and testing of our research reactor will not be complete until FY2005. A new commercial Veeco reactor was installed in early FY2004, and after qualification growth experiments were conducted to improve the GaN quality using a delayed recovery technique, which addresses challenge (3). Using a delayed recovery technique, the dislocation densities determined from x-ray diffraction were reduced from 2 x 10{sup 9} cm{sup -2} to 4 x 10{sup 8} cm{sup -2}. We have also developed a model to simulate reflectance waveforms for GaN growth on sapphire.

  10. Gold deposits in metamorphic belts: Overview of current understanding, outstanding problems, future research, and exploration significance

    USGS Publications Warehouse

    Groves, D.I.; Goldfarb, R.J.; Robert, F.; Hart, C.J.R.

    2003-01-01

    Metamorphic belts are complex regions where accretion or collision has added to, or thickened, continental crust. Gold-rich deposits can be formed at all stages of orogen evolution, so that evolving metamorphic belts contain diverse gold deposit types that may be juxtaposed or overprint each other. This partly explains the high level of controversy on the origin of some deposit types, particularly those formed or overprinted/remobilized during the major compressional orogeny that shaped the final geometry of the hosting metamorphic belts. These include gold-dominated orogenic and intrusion-related deposits, but also particularly controversial gold deposits with atypical metal associations. There are a number of outstanding problems for all types of gold deposits in metamorphc belts. These include the following: (1) definitive classifications, (2) unequivocal recognition of fluid and metal sources, (3) understanding of fluid migration and focusing at all scales, (4) resolution of the precise role of granitoid magmatism, (5) precise gold-depositional mechanisms, particularly those producing high gold grades, and (6) understanding of the release of CO2-rich fluids from subducting slabs and subcreted oceanic crust and granitoid magmas at different crustal levels. Research needs to be better coordinated and more integrated, such that detailed fluid-inclusion, trace-element, and isotopic studies of both gold deposits and potential source rocks, using cutting-edge technology, are embedded in a firm geological framework at terrane to deposit scales. Ultimately, four-dimensional models need to be developed, involving high-quality, three-dimensional geological data combined with integrated chemical and fluid-flow modeling, to understand the total history of the hydrothermal systems involved. Such research, particularly that which can predict superior targets visible in data sets available to exploration companies before discovery, has obvious spin-offs for global- to deposit

  11. EDITORIAL: Announcing the 2006 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul

    2007-07-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believes that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards' in four subject categories: Fluid Mechanics; Measurement Science; Precision Measurements; and Sensors and Sensing Systems. 2006 Award Winners—Fluid Mechanics The article 'Molecular tagging velocimetry and thermometry and its application to the wake of a heated circular cylinder' by Hui Hu and Manoochehr Koochesfahani, published in volume 17, issue 6, pp 1269-1281, was selected by the cognizant Editorial Board Members as the Outstanding Paper in Fluid Mechanics for 2006. This consensus selection was accompanied by the collective judgment that a number of other very strong contributions were published in 2006. These other papers have been added to the 2006 Highlights in the electronic version of the journal. The paper by Hu and Koochesfahani is recognized for its contribution to the use of molecular tagging techniques in the service of velocity and temperature measurements. The paper clearly articulates the prior state-of-the-art in this area and it communicates the required equipment and procedures to utilize this experimental tool. The capabilities of their technique are made apparent by the simultaneous (u,v,T) observations in the wake of a circular cylinder. The normalized heat flux vectors, (\\overline{u_j'T'})/U\\Delta T, demonstrate one of the beneficial results of obtaining a whole-field view of the velocity and temperature distributions. The authors also have carefully noted the intrinsic limitations of their technique. 2006 Award Winners—Measurement Science The

  12. EDITORIAL: Announcing the 2009 Measurement Science and Technology Outstanding Paper Awards Announcing the 2009 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul

    2010-06-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believes that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards' in four subject categories: Fluid Mechanics; Measurement Science; Precision Measurements; and Sensors and Sensing Systems. This year also saw the introduction of a new category—Optical and Laser-based Techniques. 2009 Award Winners—Fluid Mechanics Digital particle image velocimetry (DPIV) robust phase correlation Adric Eckstein and Pavlos P Vlachos Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA This paper [1] represents a valuable improvement to the phase-only correlation technique (first proposed by Wernet in this journal in 2005 (Wernet M 2005 Symmetric phase-only filtering: a new paradigm for DPIV data processing Meas. Sci. Technol. 16 601-18) for particle-image-velocimetry (PIV) measurements of fluid flow. The authors establish a sound theoretical foundation and clearly describe the working principle of their robust phase correlation method. The methodology for assessing performance is excellent. Detailed results on several internationally recognized PIV test cases are presented. The robust phase correlation method is of general applicability and therefore can be expected to have substantial impact in this very active area of fluid-mechanics measurements. 2009 Award Winner—Precision Measurement A nanonewton force facility and a novel method for measurements of the air and vacuum permittivity at zero frequencies V Nesterov Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, D-38116 Braunschweig, Germany This paper [2] describes a

  13. Long-Distance Water Transport in Aquatic Plants.

    PubMed Central

    Pedersen, O.

    1993-01-01

    Acropetal mass flow of water is demonstrated in two submerged angiosperms, Lobelia dortmanna L. and Sparganium emersum Rehman by means of guttation measurements. Transpiration is absent in truly submerged plants, but the presence of guttation verifies that long-distance water transport takes place. Use of tritiated water showed that the water current arises from the roots, and the main flow of water is channeled to the youngest leaves. This was confirmed by measurement of guttation, which showed the highest rates in young leaves. Guttation rates were 10-fold larger in the youngest leaf of S. emersum (2.1 [mu]L leaf-1 h-1) compared with the youngest leaf of L. dortmanna (0.2 [mu]L leaf-1 h-1). This is probably due to profound species differences in the hydraulic conductance (2.7 x 10-17 m4 Pa-1 s-1 for S. emersum and 1.4 x 10-19 m4 Pa-1 s-1 for L. dortmanna). Estimates derived from the modified Hagen-Poiseuille equation showed that the maximum flow velocity in xylem vessels was 23 to 84 cm h-1, and the required root pressure to drive the flow was small compared to that commonly found in terrestrial plants. In S. emersum long-distance transport of water was shown to be dependent on energy conversion in the roots. The leaves ceased to guttate when the roots were cooled to 4[deg]C from the acclimatization level at 15[deg]C, whereas the guttation was stimulated when the temperature was increased to 25[deg]C. Also, the guttation rate decreased significantly when vanadate was added to the root medium. The observed water transport is probably a general phenomenon in submerged plants, where it can act as a translocation system for nutrients taken up from the rich root medium and thereby assure maximum growth. PMID:12232030

  14. What makes astronomical heritage valuable? Identifying potential Outstanding Universal Value in cultural properties relating to astronomy

    NASA Astrophysics Data System (ADS)

    Cotte, Michel

    2016-10-01

    This communication presents the situation regarding astronomical and archaeoastronomical heritage related to the World Heritage Convention through recent years up until today. Some parallel events and works were promoted strongly within the IAU-UNESCO Initiative during the International Year of Astronomy (2009). This was followed by a joint program by the IAU and ICOMOS-an official advisory body assisting the World Heritage Committee in the evaluation of nomination dossiers. The result of that work is an important publication by around 40 authors from 20 different countries all around the world: Heritage Sites of Astronomy and Archaeoastronomy in the Context of the UNESCO World Heritage Convention (Ruggles & Cotte 2010). A second volume is under preparation (2015). It was also accompanied by some initiatives such as the ``Windows to the Universe" organisation and the parallel constitution of local ``Starlight Reserves''. Some regional meetings studying specific facets or regional heritage in the field giving significant knowledge progresses also accompanied the global trend for astronomical heritage. WH assessment is defined by a relatively strict format and methodology. A key phrase is ``demonstration of Outstanding Universal Value'' to justify the WH Listing by the Committee. This communication first examines the requirements and evaluation practices about of demonstrating OUV for a given place in the context of astronomical or archaeoastronomical heritage. That means the examination of the tangible attributes, an inventory of the property in terms of immoveable and moveable components and an inventory of intangible issues related to the history (history of the place in the context of the history of astronomy and cultural history). This is also related to the application to the site of the concept of integrity and authenticity, as regards the place itself and in comparison with other similar places (WH sites already listed, sites on national WH Tentative Lists

  15. Outstanding imprints of c. 200 million year old earthquakes in seafloor sediments

    NASA Astrophysics Data System (ADS)

    Homberg, Catherine; Schnyder, Johann; Borderie, Sandra; Raine, Rob

    2015-04-01

    - Early Jurassic. Based on this outstanding example, we proposed a sequential model for the deformation and disturbance of the seafloor subsurface sediments triggered by an earthquake. The sequence of deformation includes brittle failure, fluidization of the failed unit, plastic deformation, and sediment flow at designated places (e.g. close to the fault tips). We also discuss the roles of contrasting stiffness, shear strength, and thickness of the units on the sediment destabilization of freshly deposited sediments that are characterized by a prominent mechanical layering.

  16. Assessing the outstanding 2003 fire events in Portugal with a Regional Climate Model

    NASA Astrophysics Data System (ADS)

    Trigo, Ricardo; Jerez, Sonia; Camara, Carlos; Montávez, Juan Pedro

    2013-04-01

    The heatwave that struck western Iberia in the early days of August 2003 was characterized by record high values of both maximum (47.3°C) and minimum (30.6°c) temperatures in Portugal, associated with extremely low humidity levels and relatively intense wind speed (Trigo et al., 2006). These conditions triggered the most devastating sequence of large fires ever registered in Portugal. The estimated total burnt area was about 450.000 ha, including 280.000 ha of forest (Pereira et al., 2011). The outstanding total burnt area value corresponds to roughly 5% of the Portuguese territory, and represents approximately twice the previous maximum observed in 1998 (~220.000 ha), and about four times the long-term average observed between 1980 and 2004. Here we characterise this unusual episode using meteorological fields obtained from both observations and a regional climate model. In this work we use the longest (49-years) high-resolution regional climate simulation available driven by reanalysis data spanning from 1959 to 2007 and covering the entire Iberian Peninsula. This long run was obtained using the MM5 model with a spatial resolution of 10 km. Using this high spatial and temporal resolution we have computed the Canadian Fire Weather Index (FWI) System to produce hourly values of fire risk. The FWI System consists of six components that account for the effects of fuel moisture and wind on fire behaviour (van Wagner, 1987). We show the temporal evolution of high resolution patterns for several fire related variables during the most important days for triggering new fires (the first week of August 2003). Besides the absolute value of Tmax, Tmin, wind (speed and direction), relative humidity and FWI we also evaluate the corresponding anomalies of these fields, obtained after removing the long-term smoothed daily climatology. Pereira M.G., Malamude B.D., Trigo R.M., Alves P.I. (2011) "The History and Characteristics of the 1980-2005 Portuguese Rural Fire Database

  17. 41 CFR 301-52.14 - What must I do with any travel advance outstanding at the time I submit my travel claim?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... travel advance outstanding at the time I submit my travel claim? 301-52.14 Section 301-52.14 Public Contracts and Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES... § 301-52.14 What must I do with any travel advance outstanding at the time I submit my travel claim?...

  18. 41 CFR 301-52.14 - What must I do with any travel advance outstanding at the time I submit my travel claim?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... travel advance outstanding at the time I submit my travel claim? 301-52.14 Section 301-52.14 Public Contracts and Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES... § 301-52.14 What must I do with any travel advance outstanding at the time I submit my travel claim?...

  19. 41 CFR 301-52.14 - What must I do with any travel advance outstanding at the time I submit my travel claim?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... travel advance outstanding at the time I submit my travel claim? 301-52.14 Section 301-52.14 Public Contracts and Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES... § 301-52.14 What must I do with any travel advance outstanding at the time I submit my travel claim?...

  20. 41 CFR 301-52.14 - What must I do with any travel advance outstanding at the time I submit my travel claim?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... travel advance outstanding at the time I submit my travel claim? 301-52.14 Section 301-52.14 Public Contracts and Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES... § 301-52.14 What must I do with any travel advance outstanding at the time I submit my travel claim?...

  1. 41 CFR 301-52.14 - What must I do with any travel advance outstanding at the time I submit my travel claim?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... travel advance outstanding at the time I submit my travel claim? 301-52.14 Section 301-52.14 Public Contracts and Property Management Federal Travel Regulation System TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES... § 301-52.14 What must I do with any travel advance outstanding at the time I submit my travel claim?...

  2. EDITORIAL: Announcing the 2007 Measurement Science and Technology Outstanding Paper Awards

    NASA Astrophysics Data System (ADS)

    Foss, John; Dewhurst, Richard; Fujii, Kenichi; Regtien, Paul

    2008-05-01

    Since 1991, Measurement Science and Technology has awarded a Best Paper prize. The Editorial Board of this journal believes that such a prize is an opportunity to thank authors for submitting their work, and serves as an integral part of the on-going quality review of the journal. The current breadth of topical areas that are covered by MST has made it advisable to expand the recognition of excellent publications. Hence, since 2005 the Editorial Board have presented 'Outstanding Paper Awards' in four subject categories: Fluid Mechanics; Measurement Science; Precision Measurements; and Sensors and Sensing Systems. 2007 Award Winners—Fluid Mechanics An adaptive sampling and windowing interrogation method in PIV R Theunissen, F Scarano and M L Riethmuller von Karman Institute for Fluid Dynamics, Chaussée de Waterloo 72, 1640 Sint-Genesius Rode, Belgium and Department of Aerospace Engineering, Delft University of Technology, Delft, PO Box 5058, 2600 GB Delft, The Netherlands The co-authored paper [1] has been selected as the Outstanding Paper in Fluid Mechanics for 2007. This paper provides a strategy whereby the placement and the size of the interrogation regions are adapted to the image signal strength (seeding density) and the spatial variations of the velocity magnitudes. Two, quite distinct, test cases demonstrate the efficacy of their method: a shockwave- boundary layer interaction and an aircraft vortex wake. The Selection Committee—Drs T Fansler, J Foss, I Marusic, S Morris, K Okamoto and M Wernet—selected this paper from a strongly competitive shortlist of four candidates. Their selection process was influenced by the perceived utility of the contribution to the numerous investigators who utilize PIV methods. 2007 Award Winners—Measurement Science Broadband single cell impedance spectroscopy using maximum length sequences: theoretical analysis and practical considerations Tao Sun, Shady Gawad, Catia Bernabini, Nicolas G Green and Hywel Morgan

  3. Best Practices & Outstanding Initiatives

    ERIC Educational Resources Information Center

    Training, 2012

    2012-01-01

    In this article, "Training" editors recognize innovative and successful learning and development programs and practices submitted in the 2012 Training Top 125 application. Best practices: (1) Edward Jones: Practice Makes Perfect (sales training); (2) Grant Thornton LLP: Senior Manager Development Program (SMDP); (3) MetLife, Inc.: Top Advisor…

  4. Outstanding student papers

    NASA Astrophysics Data System (ADS)

    Olle Norberg was honored for his presentation of “The Astrid Microsatellite Mission—An Attempt at Energetic Neutral Atom Imaging.” Norberg received a M.Sc. (1988) in engineering physics from the Royal Institute of Technology, Stockholm. He is currently pursuing a Ph.D. in space plasma physics at the Swedish Institute of Space Physics, Kiruna, Sweden, where he is a research assistant. His research interests include the study of magnetospheric plasmas, and space plasma instrumentation. He has been studying the hot plasma data from the Phobos-2 Mars mission and the Freja mission. Norberg was a principal investigator on the Swedish Astrid-1 mission, launched in January 1995 to study neutral atoms generated in the ring current.

  5. Outstanding reviewers 2014

    NASA Astrophysics Data System (ADS)

    2015-09-01

    Every article published in this Journal goes through a rigorous review process. The reviewers are experts in their field, and undertake this service voluntarily with advancement of their fields as the only motivation. We acknowledge our debt to the reviewers for this service and in an earlier issue (Quaternary Science Reviews, Volume 107, Pages 276-280, http://dx.doi.org/10.1016/S0277-3791(14)00458-2)

  6. Beads-on-String Structured Nanofibers for Smart and Reversible Oil/Water Separation with Outstanding Antifouling Property.

    PubMed

    Wang, Yuanfeng; Lai, Chuilin; Wang, Xiaowen; Liu, Yang; Hu, Huawen; Guo, Yujuan; Ma, Kaikai; Fei, Bin; Xin, John H

    2016-09-28

    It is challenging to explore a unified solution for the treatment of oily wastewater from complex sources. Thus, membrane materials with flexible separation schemes are highly desired. Herein, we fabricated a smart membrane by electrospinning TiO2 doped polyvinylidene fluoride (PVDF) nanofibers. The as-formed beads-on-string structure and hierarchical roughness of the nanofibers contribute to its superwetting/resisting property to liquids, which is desirable in oil/water separation. Switched simply by UV (or sunlight) irradiation and heating treatment, the smart membrane can realize reversible separation of oil/water mixtures by selectively allowing water or oil to pass through alone. Most importantly, the as-prepared nanofiber membrane possesses outstanding antifouling and self-cleaning performance resulting from the photocatalytic property of TiO2, which has practical significance in saving solvents and recycling materials. This work provides a route for fabricating cost-effective, easily scaled up, and recyclable membranes for on-demand oil/water separation in versatile situations, which can be of great usage in the new green separation technology.

  7. Polymer Nanodot-Hybridized Alkyl Silicon Oxide Nanostructures for Organic Memory Transistors with Outstanding High-Temperature Operation Stability

    PubMed Central

    Lee, Chulyeon; Seo, Jooyeok; Kim, Jeongnam; Jeong, Jaehoon; Han, Hyemi; Kim, Hwajeong; Kim, Youngkyoo

    2016-01-01

    Organic memory devices (OMDs) are becoming more important as a core component in flexible electronics era because of their huge potentials for ultrathin, lightweight and flexible plastic memory modules. In particular, transistor-type OMDs (TOMDs) have been gradually spotlighted due to their structural advantages possessing both memory and driving functions in single devices. Although a variety of TOMDs have been developed by introducing various materials, less attention has been paid to the stable operation at high temperatures. Here we demonstrate that the polymer nanodot-embedded alkyl silicon oxide (ASiO) hybrid materials, which are prepared by sol-gel and thermal cross-linking reactions between poly(4-vinylphenol) (PVP) and vinyltriethoxysilane, can deliver low-voltage (1~5 V) TOMDs with outstanding operation stability (>4700 cycles) at high temperatures (150 °C). The efficient low-voltage memory function is enabled by the embedded PVP nanodots with particular lattice nanostructures, while the high thermal stability is achieved by the cross-linked ASiO network structures. PMID:27703187

  8. Outstanding field emission properties of wet-processed titanium dioxide coated carbon nanotube based field emission devices

    SciTech Connect

    Xu, Jinzhuo; Ou-Yang, Wei Chen, Xiaohong; Guo, Pingsheng; Piao, Xianqing; Sun, Zhuo; Xu, Peng; Wang, Miao; Li, Jun

    2015-02-16

    Field emission devices using a wet-processed composite cathode of carbon nanotube films coated with titanium dioxide exhibit outstanding field emission characteristics, including ultralow turn on field of 0.383 V μm{sup −1} and threshold field of 0.657 V μm{sup −1} corresponding with a very high field enhancement factor of 20 000, exceptional current stability, and excellent emission uniformity. The improved field emission properties are attributed to the enhanced edge effect simultaneously with the reduced screening effect, and the lowered work function of the composite cathode. In addition, the highly stable electron emission is found due to the presence of titanium dioxide nanoparticles on the carbon nanotubes, which prohibits the cathode from the influence of ions and free radical created in the emission process as well as residual oxygen gas in the device. The high-performance solution-processed composite cathode demonstrates great potential application in vacuum electronic devices.

  9. Polymer Nanodot-Hybridized Alkyl Silicon Oxide Nanostructures for Organic Memory Transistors with Outstanding High-Temperature Operation Stability

    NASA Astrophysics Data System (ADS)

    Lee, Chulyeon; Seo, Jooyeok; Kim, Jeongnam; Jeong, Jaehoon; Han, Hyemi; Kim, Hwajeong; Kim, Youngkyoo

    2016-10-01

    Organic memory devices (OMDs) are becoming more important as a core component in flexible electronics era because of their huge potentials for ultrathin, lightweight and flexible plastic memory modules. In particular, transistor-type OMDs (TOMDs) have been gradually spotlighted due to their structural advantages possessing both memory and driving functions in single devices. Although a variety of TOMDs have been developed by introducing various materials, less attention has been paid to the stable operation at high temperatures. Here we demonstrate that the polymer nanodot-embedded alkyl silicon oxide (ASiO) hybrid materials, which are prepared by sol-gel and thermal cross-linking reactions between poly(4-vinylphenol) (PVP) and vinyltriethoxysilane, can deliver low-voltage (1~5 V) TOMDs with outstanding operation stability (>4700 cycles) at high temperatures (150 °C). The efficient low-voltage memory function is enabled by the embedded PVP nanodots with particular lattice nanostructures, while the high thermal stability is achieved by the cross-linked ASiO network structures.

  10. Polymer Nanodot-Hybridized Alkyl Silicon Oxide Nanostructures for Organic Memory Transistors with Outstanding High-Temperature Operation Stability.

    PubMed

    Lee, Chulyeon; Seo, Jooyeok; Kim, Jeongnam; Jeong, Jaehoon; Han, Hyemi; Kim, Hwajeong; Kim, Youngkyoo

    2016-10-05

    Organic memory devices (OMDs) are becoming more important as a core component in flexible electronics era because of their huge potentials for ultrathin, lightweight and flexible plastic memory modules. In particular, transistor-type OMDs (TOMDs) have been gradually spotlighted due to their structural advantages possessing both memory and driving functions in single devices. Although a variety of TOMDs have been developed by introducing various materials, less attention has been paid to the stable operation at high temperatures. Here we demonstrate that the polymer nanodot-embedded alkyl silicon oxide (ASiO) hybrid materials, which are prepared by sol-gel and thermal cross-linking reactions between poly(4-vinylphenol) (PVP) and vinyltriethoxysilane, can deliver low-voltage (1~5 V) TOMDs with outstanding operation stability (>4700 cycles) at high temperatures (150 °C). The efficient low-voltage memory function is enabled by the embedded PVP nanodots with particular lattice nanostructures, while the high thermal stability is achieved by the cross-linked ASiO network structures.

  11. Large-scale production of graphitic carbon nitride with outstanding nitrogen photofixation ability via a convenient microwave treatment

    NASA Astrophysics Data System (ADS)

    Ma, Huiqiang; Shi, Zhenyu; Li, Shuang; Liu, Na

    2016-08-01

    A convenient microwave treatment for synthesizing graphitic carbon nitride (g-C3N4) with outstanding nitrogen photofixation ability under visible light is reported. X-ray diffraction (XRD), N2 adsorption, UV-vis spectroscopy, SEM, N2-TPD, EPR, photoluminescence (PL) and photocurrent measurements were used to characterize the prepared catalysts. The results indicate that microwave treatment can form many irregular pores in as-prepared g-C3N4, which causes the increased surface area and separation rate of electrons and holes. More importantly, microwave treatment causes the formation of many nitrogen vacancies in as-prepared g-C3N4. These nitrogen vacancies not only serve as active sites to adsorb and activate N2 molecules but also promote interfacial charge transfer from catalysts to N2 molecules, thus significantly improving the nitrogen photofixation ability. Moreover, the present process is a convenient method for large-scale production of g-C3N4 which is significantly important for the practical application.

  12. It's Not Just about Value for Money: A Case Study of Values-Led Implementation of the Pupil Premium in Outstanding Schools

    ERIC Educational Resources Information Center

    Abbott, Ian; Middlewood, David; Robinson, Sue

    2015-01-01

    This article draws on data collected from a series of semi-structured interviews with headteachers and other stakeholders on the use of the Pupil Premium in Ofsted-rated outstanding schools. It has a focus on the significance of fundamental principles in determining how effective use is made of additional resources. In particular, the importance…

  13. Behind Each Outstanding Teacher: An Analysis of the Teacher Tribute Award Nominations for the Student Loan Marketing Association, 1988-89.

    ERIC Educational Resources Information Center

    Saxe, Richard W.

    Research assesses the attitudinal factors that characterize outstanding first-year elementary and secondary school teachers as nominated by their superintendents and judged for the Student Loan Marketing Association (Sallie Mae) by a panel of experts selected by the American Association of School Administrators. Sallie Mae nomination forms…

  14. LTR-retrotransposons in R. exoculata and other crustaceans: the outstanding success of GalEa-like copia elements.

    PubMed

    Piednoël, Mathieu; Donnart, Tifenn; Esnault, Caroline; Graça, Paula; Higuet, Dominique; Bonnivard, Eric

    2013-01-01

    Transposable elements are major constituents of eukaryote genomes and have a great impact on genome structure and stability. They can contribute to the genetic diversity and evolution of organisms. Knowledge of their distribution among several genomes is an essential condition to study their dynamics and to better understand their role in species evolution. LTR-retrotransposons have been reported in many diverse eukaryote species, describing a ubiquitous distribution. Given their abundance, diversity and their extended ranges in C-values, environment and life styles, crustaceans are a great taxon to investigate the genomic component of adaptation and its possible relationships with TEs. However, crustaceans have been greatly underrepresented in transposable element studies. Using both degenerate PCR and in silico approaches, we have identified 35 Copia and 46 Gypsy families in 15 and 18 crustacean species, respectively. In particular, we characterized several full-length elements from the shrimp Rimicaris exoculata that is listed as a model organism from hydrothermal vents. Phylogenic analyses show that Copia and Gypsy retrotransposons likely present two opposite dynamics within crustaceans. The Gypsy elements appear relatively frequent and diverse whereas Copia are much more homogeneous, as 29 of them belong to the single GalEa clade, and species- or lineage-dependent. Our results also support the hypothesis of the Copia retrotransposon scarcity in metazoans compared to Gypsy elements. In such a context, the GalEa-like elements present an outstanding wide distribution among eukaryotes, from fishes to red algae, and can be even highly predominant within a large taxon, such as Malacostraca. Their distribution among crustaceans suggests a dynamics that follows a "domino days spreading" branching process in which successive amplifications may interact positively.

  15. LTR-Retrotransposons in R. exoculata and Other Crustaceans: The Outstanding Success of GalEa-Like Copia Elements

    PubMed Central

    Esnault, Caroline; Graça, Paula; Higuet, Dominique; Bonnivard, Eric

    2013-01-01

    Transposable elements are major constituents of eukaryote genomes and have a great impact on genome structure and stability. They can contribute to the genetic diversity and evolution of organisms. Knowledge of their distribution among several genomes is an essential condition to study their dynamics and to better understand their role in species evolution. LTR-retrotransposons have been reported in many diverse eukaryote species, describing a ubiquitous distribution. Given their abundance, diversity and their extended ranges in C-values, environment and life styles, crustaceans are a great taxon to investigate the genomic component of adaptation and its possible relationships with TEs. However, crustaceans have been greatly underrepresented in transposable element studies. Using both degenerate PCR and in silico approaches, we have identified 35 Copia and 46 Gypsy families in 15 and 18 crustacean species, respectively. In particular, we characterized several full-length elements from the shrimp Rimicaris exoculata that is listed as a model organism from hydrothermal vents. Phylogenic analyses show that Copia and Gypsy retrotransposons likely present two opposite dynamics within crustaceans. The Gypsy elements appear relatively frequent and diverse whereas Copia are much more homogeneous, as 29 of them belong to the single GalEa clade, and species- or lineage-dependent. Our results also support the hypothesis of the Copia retrotransposon scarcity in metazoans compared to Gypsy elements. In such a context, the GalEa-like elements present an outstanding wide distribution among eukaryotes, from fishes to red algae, and can be even highly predominant within a large taxon, such as Malacostraca. Their distribution among crustaceans suggests a dynamics that follows a “domino days spreading” branching process in which successive amplifications may interact positively. PMID:23469217

  16. 21 CFR 310.544 - Drug products containing active ingredients offered over-the-counter (OTC) for use as a smoking...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... lobeline sulfate or natural lobelia alkaloids or Lobelia inflata herb), menthol, methyl salicylate... drug product containing lobeline (in the form of lobeline sulfate or natural lobelia alkaloids...

  17. The oceanographic and climatic evolution of the Paleogene Southern Ocean (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Bijl, Peter; Houben, Alexander J. P.

    2014-05-01

    buildup of continental ice on Antarctica, sea-ice may have first developed along the margin of East Antarctica Margin, but this conclusion lacks support from field evidence. Other numerical models predict that hysteresis effects within the ice sheet render a continental-size Antarctic ice sheet rather insensitive to warming. In contrast, deep-water benthic foraminiferal oxygen isotope records across the Oligocene suggest dramatic waxing and waning of Antarctic ice sheets. In summary, the complex interaction of climate forcings and responses following the opening and subsequent deepening of the Southern Ocean gateways, as well as the precise relationship between Southern Ocean oceanographic change, sea ice formation and continental ice dynamics are as yet poorly understood. In my presentation, I will provide an overview of our recent palynological and organic geochemical studies on Eocene sediments from the Southern Ocean that addresses some of these uncertainties. The presented studies were only possible through access to ocean sediments collected and curated by the several scientific ocean drilling programs (DSDP, ODP, IODP). IODP Expedition 318 drilled the Antarctic Margin in 2010, and recovered sediments from both pre-glacial and early glacial phases of Antarctic climate evolution. Using these drill cores together with sediments retrieved during previous expeditions we can now evaluate the robustness of the results of numerical models with field data. Strata sampled at IODP Site U1356 represent a thick and relatively complete (albeit compromised by core gaps) Eocene- Oligocene succession that is chronostratigraphically well-calibrated in the context of of nannoplankton- dinoflagellate cyst (dinocyst) and paleomagnetism. Notably, this record yields diverse dinocysts assemblages and organic molecular biomarkers, which we can use to investigate changes in surface-water paleoenvironmental changes through the Eocene and Oligocene to provide answers to these outstanding

  18. Hybrid solar cells with outstanding short-circuit currents based on a room temperature soft-chemical strategy: the case of P3HT:Ag2S.

    PubMed

    Lei, Yan; Jia, Huimin; He, Weiwei; Zhang, Yange; Mi, Liwei; Hou, Hongwei; Zhu, Guangshan; Zheng, Zhi

    2012-10-24

    P3HT:Ag(2)S hybrid solar cells with broad absorption from the UV to NIR band were directly fabricated on ITO glass by using a room temperature, low energy consumption, and low-cost soft-chemical strategy. The resulting Ag(2)S nanosheet arrays facilitate the construction of a perfect percolation structure with organic P3HT to form ordered bulk heterojunctions (BHJ); without interface modification, the assembled P3HT:Ag(2)S device exhibits outstanding short-circuit current densities (J(sc)) around 20 mA cm(-2). At the current stage, the optimized device exhibited a power conversion efficiency of 2.04%.

  19. Investigation of water quality in the Great Sand Dunes National Monument and Preserve, Saguache County, Colorado, February 1999 through September 2000: Qualifying for outstanding waters designation

    USGS Publications Warehouse

    Ferguson, Sheryl A.

    2003-01-01

    Great Sand Dunes National Monument and Preserve is located on the eastern side of the San Luis Valley in south-central Colorado. The monument covers 60.4 square miles in Saguache and Alamosa Counties and lies at the base of the Sangre de Cristo Mountains, where a unique combination of climate, topography, and hydrology has created and maintained the Nation?s tallest inland sand dunes. The Sangre de Cristo Mountains, which rise to more than 14,000 feet to the north and east of the dunes, are the source of several streams that flow around the dunes and eventually recharge the aquifer beneath the valley. Sand Creek and Medano Creeks are the largest of the streams in the monument that originate in the Sangre de Cristo Mountains; several ephemeral streams flow into Sand Creek and Medano Creek. Maintaining the high surface-water quality in the Great Sand Dunes National Monument and Preserve is identified as a critical issue by the National Park Service. Additionally, the National Park Service has indicated a desire to pursue an Outstanding Waters Designation, which offers the highest level of water-quality protection available under the Clean Water Act and Colorado regulations. This designation is designed to prevent any degradation from existing conditions (Chatman and others, 1997). Assessment is needed to evaluate whether the water quality of the streams in the monument meets the requirements for an Outstanding Waters Designation. Historically, prospecting and mining activities have occurred in the watersheds of Sand and Medano Creeks; currently, however, there is no mining activity in those watersheds. In addition, the camping and recreation that occur upstream from the monument on national preserve lands and water activities that occur in Medano Creek during the summer are a potential source of human-waste contamination. Figure 1. Location of study area, sampling sites, and indication of sites that meet or exceed instream standards. The U.S. Geological Survey (USGS

  20. Heat Transfer Organic Materials: Robust Polymer Films with the Outstanding Thermal Conductivity Fabricated by the Photopolymerization of Uniaxially Oriented Reactive Discogens.

    PubMed

    Kang, Dong-Gue; Park, Minwook; Kim, Dae-Yoon; Goh, Munju; Kim, Namil; Jeong, Kwang-Un

    2016-11-09

    For the development of advanced heat transfer organic materials (HTOMs) with excellent thermal conductivities, triphenylene-based reactive discogens, 2,3,6,7,10,11-hexakis(but-3-enyloxy)triphenylene (HABET) and 4,4',4″,4‴,4'''',4'''''-(triphenylene-2,3,6,7,10,11-hexaylhexakis(oxy))hexakis(butane-1-thiol) (THBT), were synthesized as discotic liquid crystal (DLC) monomers and cross-linkers, respectively. A temperature-composition phase diagram of HABET-THBT mixtures was first established based on their thermal and microscopic analyses. From the experimental results, it was realized that the thermal conductivity of DLC HTOM was strongly affected by the molecular organizations on a macroscopic length scale. Macroscopic orientation of self-assembled columns in DLC HTOMs was effectively achieved under the rotating magnetic fields and successfully stabilized by the photopolymerization. The DLC HTOM polymer-stabilized at the LC phase exhibited the remarkable thermal conductivity above 1 W/mK. When the DLC HTOM was macroscopically oriented, the thermal conductivity was estimated to be 3 W/mK along the in-plane direction of DLC molecule. The outstanding thermal conductivity of DLC HTOM should be originated not only from the high content of two-dimensional aromatic discogens but also from the macroscopically oriented and self-assembled DLC. The newly developed DLC HTOM with an outstanding thermal conductivity as well as with an excellent mechanical sustainability can be applied as directional heat dissipating materials in electronic and display devices.

  1. Layered Na‐Ion Cathodes with Outstanding Performance Resulting from the Synergetic Effect of Mixed P‐ and O‐Type Phases

    PubMed Central

    Keller, Marlou

    2015-01-01

    Herein, the synthesis of new quaternary layered Na‐based oxides of the type NaxMnyNizFe0.1Mg0.1O2 (0.67≤ x ≤ 1.0; 0.5≤ y ≤ 0.7; 0.1≤ z ≤ 0.3) is described. The synthesis can be tuned to obtain P2‐ and O3‐type as well as mixed P‐/O‐type phases as demonstrated by structural, morphological, and electrochemical properties characterization. Although all materials show good electrochemical performance, the simultaneous presence of the P‐ and O‐type phases is found to have a synergetic effect resulting in outstanding performance of the mixed phase material as a sodium‐ion cathode. The mixed P3/P2/O3‐type material, having an average elemental composition of Na0.76Mn0.5Ni0.3Fe0.1Mg0.1O2, overcomes the specific drawbacks associated with the P2‐ and O3‐type materials, allowing the outstanding electrochemical performance. In detail, the mixed phase material is able to deliver specific discharge capacities of up to 155 mAh g−1 (18 mA g−1) in the potential range of 2.0–4.3 V. In the narrower potential range of 2.5–4.3 V the material exhibits high average discharge potential (3.4 V versus Na/Na+), exceptional average coulombic efficiencies (>99.9%), and extraordinary capacity retention (90.2% after 601 cycles). The unexplored class of P‐/O‐type mixed phases introduces new perspectives for the development of layered positive electrode materials and powerful Na‐ion batteries. PMID:27134617

  2. Effects of acidification on macrophyte growth in the HUMEX Lake Skjervatjern, with special emphasis on Sphagnum auriculatum

    SciTech Connect

    Brandrud, T.E.; Johansen, S.W. )

    1994-01-01

    Transplantation experiments for the study of aquatic macrophyte growth and vitality were carried out in the HUMEX Lake Skjervatjern. Plants (preferentially indigenous) were transplanted to plastic pots in the acid-treated (A) basin and the control (B) basin. During the first phase of the experiments in 1991-1992, shortly after start of acidification treatment, the following trends were apparent: (1) The isoetic plants (Isoetes lacustris, Littorella uniflora, and Lobelia dortmanna) showed similar growth and vitality responses in the two Skjervatjern basins. (2) The elodeid species showed a slightly different response in the two basins. Juncus bulbosus exhibited a slightly higher growth rate in the acidified A basin. Myriophyllum alterniflorum died out after less than a growing season in the treated basin A, while a few shoots survived in basin B. (3) The transplanted shoots of submerged Sphagnum auriculatum showed a decreased growth in the acidified basin less than a year after start of treatment. This contrasts the results of other lake acidification studies where submerged Sphagnum mats were found to increase. The decreased growth of Sphagnum auriculatum after treatment seems most probably to be due to the increased SO[sub 4] concentrations, or to increased competition with epiphytic green algae. 43 refs., 12 figs.

  3. Outstanding Examples of Innovative Methods.

    ERIC Educational Resources Information Center

    Fink, David R., Jr.

    1983-01-01

    The author describes a conference on exploring some educational methods that have proved effective in other fields and at other levels of medical education to see if they have application to continuing medical education. (SSH)

  4. John Adams - an outstanding career.

    PubMed

    Lewin, David

    2016-12-07

    A distinguished nurse, teacher, researcher and historian, John Adams was educated at Aylesbury Grammar School and graduated from Selwyn College, Cambridge, with a degree in theological and religious studies.

  5. Outstanding Women Members of Congress.

    ERIC Educational Resources Information Center

    Washington, Shirley

    Women's participation in congressional politics began in 1917 when Jeannette Pickering Rankin became the first woman in Congress. This was an unusual historic mark because women did not have the right to vote until 1920 when the 19th Amendment was passed. The book lists 12 prominent women who made an impact in U.S. politics. Corrine Boggs, like…

  6. 3D Interconnected and Multiwalled Carbon@MoS2 @Carbon Hollow Nanocables as Outstanding Anodes for Na-Ion Batteries.

    PubMed

    Wang, Yan; Qu, Qunting; Li, Guangchao; Gao, Tian; Qian, Feng; Shao, Jie; Liu, Weijie; Shi, Qiang; Zheng, Honghe

    2016-11-01

    Currently, the specific capacity and cycling performance of various MoS2 /carbon-based anode materials for Na-ion storage are far from satisfactory due to the insufficient structural stability of the electrode, incomplete protection of MoS2 by carbon, difficult access of electrolyte to the electrode interior, as well as inactivity of the adopted carbon matrix. To address these issues, this work presents the rational design and synthesis of 3D interconnected and hollow nanocables composed of multiwalled carbon@MoS2 @carbon. In this architecture, (i) the 3D nanoweb-like structure brings about excellent mechanical property of the electrode, (ii) the ultrathin MoS2 nanosheets are sandwiched between and doubly protected by two layers of porous carbon, (iii) the hollow structure of the primary nanofibers facilitates the access of electrolyte to the electrode interior, (iv) the porous and nitrogen-doping properties of the two carbon materials lead to synergistic Na-storage of carbon and MoS2 . As a result, this hybrid material as the anode material of Na-ion battery exhibits fast charge-transfer reaction, high utilization efficiency, and ultrastability. Outstanding reversible capacity (1045 mAh g(-1) ), excellent rate behavior (817 mAh g(-1) at 7000 mA g(-1) ), and good cycling performance (747 mAh g(-1) after 200 cycles at 700 mA g(-1) ) are obtained.

  7. Draft genome sequence of an inbred line of Chenopodium quinoa, an allotetraploid crop with great environmental adaptability and outstanding nutritional properties.

    PubMed

    Yasui, Yasuo; Hirakawa, Hideki; Oikawa, Tetsuo; Toyoshima, Masami; Matsuzaki, Chiaki; Ueno, Mariko; Mizuno, Nobuyuki; Nagatoshi, Yukari; Imamura, Tomohiro; Miyago, Manami; Tanaka, Kojiro; Mise, Kazuyuki; Tanaka, Tsutomu; Mizukoshi, Hiroharu; Mori, Masashi; Fujita, Yasunari

    2016-12-01

    Chenopodium quinoa Willd. (quinoa) originated from the Andean region of South America, and is a pseudocereal crop of the Amaranthaceae family. Quinoa is emerging as an important crop with the potential to contribute to food security worldwide and is considered to be an optimal food source for astronauts, due to its outstanding nutritional profile and ability to tolerate stressful environments. Furthermore, plant pathologists use quinoa as a representative diagnostic host to identify virus species. However, molecular analysis of quinoa is limited by its genetic heterogeneity due to outcrossing and its genome complexity derived from allotetraploidy. To overcome these obstacles, we established the inbred and standard quinoa accession Kd that enables rigorous molecular analysis, and presented the draft genome sequence of Kd, using an optimized combination of high-throughput next generation sequencing on the Illumina Hiseq 2500 and PacBio RS II sequencers. The de novo genome assembly contained 25 k scaffolds consisting of 1 Gbp with N50 length of 86 kbp. Based on these data, we constructed the free-access Quinoa Genome DataBase (QGDB). Thus, these findings provide insights into the mechanisms underlying agronomically important traits of quinoa and the effect of allotetraploidy on genome evolution.

  8. Draft genome sequence of an inbred line of Chenopodium quinoa, an allotetraploid crop with great environmental adaptability and outstanding nutritional properties

    PubMed Central

    Yasui, Yasuo; Hirakawa, Hideki; Oikawa, Tetsuo; Toyoshima, Masami; Matsuzaki, Chiaki; Ueno, Mariko; Mizuno, Nobuyuki; Nagatoshi, Yukari; Imamura, Tomohiro; Miyago, Manami; Tanaka, Kojiro; Mise, Kazuyuki; Tanaka, Tsutomu; Mizukoshi, Hiroharu; Mori, Masashi; Fujita, Yasunari

    2016-01-01

    Chenopodium quinoa Willd. (quinoa) originated from the Andean region of South America, and is a pseudocereal crop of the Amaranthaceae family. Quinoa is emerging as an important crop with the potential to contribute to food security worldwide and is considered to be an optimal food source for astronauts, due to its outstanding nutritional profile and ability to tolerate stressful environments. Furthermore, plant pathologists use quinoa as a representative diagnostic host to identify virus species. However, molecular analysis of quinoa is limited by its genetic heterogeneity due to outcrossing and its genome complexity derived from allotetraploidy. To overcome these obstacles, we established the inbred and standard quinoa accession Kd that enables rigorous molecular analysis, and presented the draft genome sequence of Kd, using an optimized combination of high-throughput next generation sequencing on the Illumina Hiseq 2500 and PacBio RS II sequencers. The de novo genome assembly contained 25 k scaffolds consisting of 1 Gbp with N50 length of 86 kbp. Based on these data, we constructed the free-access Quinoa Genome DataBase (QGDB). Thus, these findings provide insights into the mechanisms underlying agronomically important traits of quinoa and the effect of allotetraploidy on genome evolution. PMID:27458999

  9. Recovering data from historical collections: stratigraphic and spatial reconstruction of the outstanding carnivoran record from the Late Pleistocene Equi cave (Apuane Alps, Italy)

    NASA Astrophysics Data System (ADS)

    Ghezzo, Elena; Palchetti, Alessandro; Rook, Lorenzo

    2014-07-01

    Equi Terme is a hamlet located in northern Tuscany, in Apuan Alps regional Park. An outstanding fossil vertebrate collection housed in Florence is the result of excavations in the Equi cave and shelter during the period 1911-1919. This faunal assemblage (associated with Mousterian artefacts) may be correlated with the middle of MIS 3. All of the specimens recovered at Equi early in the last century were collected with attention to their stratigraphical positions. Detailed field annotation for nearly every specimen allowed us to organize them and attempt a stratigraphical and spatial reconstruction of the fossiliferous deposits. We present the results of the study of the spatial and stratigraphic distribution of the carnivoran species in the Equi cave and shelter, and re-evaluate the taphonomic agents of accumulation and the fossil distribution within the stratigraphic record. In particular, we evaluated the distribution of Panthera pardus, which, unusually for Europe, is abundant in the Equi cave assemblage. This analysis highlights the importance of the re-evaluation of historical collections and allows for future comparisons with data from more recent excavations at the Equi site. The analysis also provides an account of the distribution of carnivorans throughout the stratigraphic record. The constant presence and the predominance of leopards and wolves over lions and smaller carnivorans, allow for evaluations of their ethology and may be related to a short period of sediment accumulation.

  10. Preparation of graphitic carbon nitride with large specific surface area and outstanding N2 photofixation ability via a dissolve-regrowth process

    NASA Astrophysics Data System (ADS)

    Ma, Huiqiang; Shi, Zhenyu; Li, Qiang; Li, Shuang

    2016-12-01

    Nitrogen fixation is the second most important chemical process in nature next to photosynthesis. Here, we report a convenient dissolve-regrowth method for synthesizing graphitic carbon nitride (g-C3N4) with a large surface area and nitrogen vacancies by HCl treatment. XRD, N2adsorption, SEM, TEM, UV-Vis spectroscopy, EPR, N2-TPD, Photoluminescence and Photocurrent were used to characterize the prepared catalysts. The results indicate that HCl treatment does not influence the crystal phase of g-C3N4 but change the morphology and optical property, leading to the smaller particle size, larger surface area and increased bang gap energy. It is deduced by N2-TPD, Photoluminescence, Photocurrent and DFT simulations that the nitrogen vacancies formed by the HCl treatment not only serve as active sites to adsorb and activate N2 molecules but also promote interfacial charge transfer from g-C3N4to N2 molecules. The HCl treated g-C3N4 catalyst exhibits outstanding nitrogen photofixation ability under visible light, which is 13.4-fold higher than that of bulk g-C3N4 without nitrogen vacancy. The possible reaction mechanism is proposed.

  11. A robust organic dye for dye sensitized solar cells based on iodine/iodide electrolytes combining high efficiency and outstanding stability.

    PubMed

    Joly, Damien; Pellejà, Laia; Narbey, Stéphanie; Oswald, Frédéric; Chiron, Julien; Clifford, John N; Palomares, Emilio; Demadrille, Renaud

    2014-02-07

    Among the new photovoltaic technologies, the Dye-Sensitized Solar Cell (DSC) is becoming a realistic approach towards energy markets such as BIPV (Building Integrated PhotoVoltaics). In order to improve the performances of DSCs and to increase their commercial attractiveness, cheap, colourful, stable and highly efficient ruthenium-free dyes must be developed. Here we report the synthesis and complete characterization of a new purely organic sensitizer (RK1) that can be prepared and synthetically upscaled rapidly. Solar cells containing this orange dye show a power conversion efficiency of 10.2% under standard conditions (AM 1.5G, 1000 Wm(-2)) using iodine/iodide as the electrolyte redox shuttle in the electrolyte, which is among the few examples of DSC using an organic dyes and iodine/iodide red/ox pair to overcome the 10% efficiency barrier. We demonstrate that the combination of this dye with an ionic liquid electrolyte allows the fabrication of solar cells that show power conversion efficiencies of up to 7.36% that are highly stable with no measurable degradation of initial performances after 2200 h of light soaking at 65°C under standard irradiation conditions. RK1 achieves one of the best output power conversion efficiencies for a solar cell based on the iodine/iodide electrolyte, combining high efficiency and outstanding stability.

  12. Validation of a radioimmunoassay for measuring testosterone concentrations in plasma samples of the subterranean rodent Ctenomys talarum: outstandingly elevated levels in the wild and the effect of captivity.

    PubMed

    Vera, Federico; Zenuto, Roxana Rita; Antenucci, Carlos Daniel; Busso, Juan Manuel; Marín, Raúl Héctor

    2011-11-01

    We validated the Coat-a-Count radioimmunoassay (RIA) kit for measuring testosterone in plasma samples of the subterranean rodent Ctenomys talarum and evaluated testosterone levels in free-living and captive individuals. The performance of the assay was evaluated by the assessment of parallelism, accuracy and precision. Moreover, the high specificity of the assay antibody was confirmed by high-pressure liquid chromatography with ultraviolet detector, followed by electrospray ionization tandem mass spectrometry. Results indicated that plasma samples have to be treated with heat and diluted before the RIA for the optimization of the assay. Plasma testosterone concentrations in free-living animals were outstandingly elevated (up to 329 ng/mL), which are among the highest ever reported for mammals. On the other hand, captivity produced a 14-fold decrease in plasma testosterone concentrations, emphasizing that very significant changes in the endocrine milieu may occur in wild animals kept under laboratory conditions. Our results place tuco-tucos as an interesting model for the study of androgen regulation in mammals, suggesting that target tissues may have low sensitivity to the testosterone signal and agree with a scenario of elevated levels of sex hormone-binding globulin in plasma.

  13. A Robust Organic Dye for Dye Sensitized Solar Cells Based on Iodine/Iodide Electrolytes Combining High Efficiency and Outstanding Stability

    NASA Astrophysics Data System (ADS)

    Joly, Damien; Pellejà, Laia; Narbey, Stéphanie; Oswald, Frédéric; Chiron, Julien; Clifford, John N.; Palomares, Emilio; Demadrille, Renaud

    2014-02-01

    Among the new photovoltaic technologies, the Dye-Sensitized Solar Cell (DSC) is becoming a realistic approach towards energy markets such as BIPV (Building Integrated PhotoVoltaics). In order to improve the performances of DSCs and to increase their commercial attractiveness, cheap, colourful, stable and highly efficient ruthenium-free dyes must be developed. Here we report the synthesis and complete characterization of a new purely organic sensitizer (RK1) that can be prepared and synthetically upscaled rapidly. Solar cells containing this orange dye show a power conversion efficiency of 10.2% under standard conditions (AM 1.5G, 1000 Wm-2) using iodine/iodide as the electrolyte redox shuttle in the electrolyte, which is among the few examples of DSC using an organic dyes and iodine/iodide red/ox pair to overcome the 10% efficiency barrier. We demonstrate that the combination of this dye with an ionic liquid electrolyte allows the fabrication of solar cells that show power conversion efficiencies of up to 7.36% that are highly stable with no measurable degradation of initial performances after 2200 h of light soaking at 65°C under standard irradiation conditions. RK1 achieves one of the best output power conversion efficiencies for a solar cell based on the iodine/iodide electrolyte, combining high efficiency and outstanding stability.

  14. A Robust Organic Dye for Dye Sensitized Solar Cells Based on Iodine/Iodide Electrolytes Combining High Efficiency and Outstanding Stability

    PubMed Central

    Joly, Damien; Pellejà, Laia; Narbey, Stéphanie; Oswald, Frédéric; Chiron, Julien; Clifford, John N.; Palomares, Emilio; Demadrille, Renaud

    2014-01-01

    Among the new photovoltaic technologies, the Dye-Sensitized Solar Cell (DSC) is becoming a realistic approach towards energy markets such as BIPV (Building Integrated PhotoVoltaics). In order to improve the performances of DSCs and to increase their commercial attractiveness, cheap, colourful, stable and highly efficient ruthenium-free dyes must be developed. Here we report the synthesis and complete characterization of a new purely organic sensitizer (RK1) that can be prepared and synthetically upscaled rapidly. Solar cells containing this orange dye show a power conversion efficiency of 10.2% under standard conditions (AM 1.5G, 1000 Wm−2) using iodine/iodide as the electrolyte redox shuttle in the electrolyte, which is among the few examples of DSC using an organic dyes and iodine/iodide red/ox pair to overcome the 10% efficiency barrier. We demonstrate that the combination of this dye with an ionic liquid electrolyte allows the fabrication of solar cells that show power conversion efficiencies of up to 7.36% that are highly stable with no measurable degradation of initial performances after 2200 h of light soaking at 65°C under standard irradiation conditions. RK1 achieves one of the best output power conversion efficiencies for a solar cell based on the iodine/iodide electrolyte, combining high efficiency and outstanding stability. PMID:24504344

  15. The Surface of Venus and Implications for its Geological and Geodynamical Evolution: The View Before Venus Express and Outstanding Questions for the Future

    NASA Astrophysics Data System (ADS)

    Head, J. W.; Ivanov, M. A.; Basilevsky, A. T.

    2008-12-01

    thickness variations and mantle convection patterns. The relationships of major elements of global topography and the sequence of events in the observed geological history (as recorded by major geologic units and structures) suggest that much of the current long-wavelength topography of Venus (tessera highlands and lowlands with regional plains) may have formed prior to emplacement of regional plains and been preserved since that time. These observations may favor evolutionary geodynamic models that are characterized by changes in geological style and rates, and may involve non-linear heat loss mechanisms that could have profound influence on the atmosphere. Although the observed surface of Venus dates from relatively recent planetary history, comparative planetology permits inferences to be made about the major stages in the earlier history of Venus. The evolution of the understanding of the surface from early speculations to present observations and interpretations provides an important context for: 1) establishing the relationships of the surface of Venus to the nature of the atmosphere and its evolution as assessed by Venus Express, 2) the comparison of the geological features and history of Venus relative to the Moon, Mars, Mercury and the Earth, and 3) defining the major outstanding problems and questions to be addressed by future experiments and missions to Venus.

  16. Outstanding issues for new geothermal resource assessments

    USGS Publications Warehouse

    Williams, C.F.; Reed, M.J.

    2005-01-01

    A critical question for the future energy policy of the United States is the extent to which geothermal resources can contribute to an ever-increasing demand for electricity. Electric power production from geothermal sources exceeds that from wind and solar combined, yet the installed capacity falls far short of the geothermal resource base characterized in past assessments, even though the estimated size of the resource in six assessments completed in the past 35 years varies by thousands of Megawatts-electrical (MWe). The U. S. Geological Survey (USGS) is working closely with the Department of Energy's (DOE) Geothermal Research Program and other geothermal organizations on a three-year effort to produce an updated assessment of available geothermal resources. The new assessment will introduce significant changes in the models for geothermal energy recovery factors, estimates of reservoir permeability, limits to temperatures and depths for electric power production, and include the potential impact of evolving Enhanced (or Engineered) Geothermal Systems (EGS) technology.

  17. 10 Tips for an Outstanding Children's Collection.

    ERIC Educational Resources Information Center

    Colburn, Nell

    1994-01-01

    Gives 10 essential tips for building children's collections, including using a systematic spending plan; applying circulation figures; making replacement purchases a priority; getting more copies and fewer titles; allocating funds for popular paperbacks; buying paperback fiction; seeking basic skills materials; taking advantage of vendor services;…

  18. Sullivan Award recognizes Outstanding Science Journalism

    NASA Astrophysics Data System (ADS)

    Leifert, Harvey

    If you have ever read a science report in your daily newspaper, or heard one on radio or TV, that made you sit up and say, “That's darn good! They got this complicated story exactly right,” you probably wanted to congratulate the author. Actually, you can do better than that: you can nominate him or her for AGU's Walter Sullivan Award for Excellence in Science Journalism.Nominations are now open for the 1999 Sullivan Award, which will be presented at the Spring Meeting next May in Boston, Mass. Any AGU member may nominate a journalist, and journalists may also nominate themselves. The award is made for a single report in any medium that is accessible to the general public and published in 1998; it carries a prize of $2000 along with a plaque.

  19. Only the Best: Hiring Outstanding Teachers

    ERIC Educational Resources Information Center

    Pillsbury, Pete

    2005-01-01

    It is apparent that human resources departments and people coordinating the selection of teachers need the financial resources and the tools to select only the very best teachers--those who will maximize student learning and development. All too often district budgets are heavy in the curricular areas, leaving human resources struggling with a…

  20. SOAR: Showcasing Outstanding Achievements in Region 1.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Div. of Workforce Development.

    This document showcases 129 exemplary workforce development-related programs at elementary schools, middle schools, high schools, adult centers, school districts, vocational-technical centers, and two- and four-year colleges in 15 counties in Florida's western panhandle region. The 15 counties are: (1) Bay; (2) Calhoun; (3) Escambia; (4) Franklin;…

  1. Technology Education in Action: Outstanding Programs.

    ERIC Educational Resources Information Center

    International Technology Education Association, Reston, VA.

    This volume contains 10 articles describing middle school and high school technology education programs conducted in schools throughout the United States. Program descriptions, which are written by the teachers involved in the programs, are from schools in the following areas: Ann Arbor, Michigan; Chicago, Illinois; Pittsburg, Kansas; Salt Lake…

  2. Polio control after certification: major issues outstanding.

    PubMed Central

    Fine, Paul E. M.; Oblapenko, George; Sutter, Roland W.

    2004-01-01

    Now that the global eradication of wild poliovirus is almost within sight, planning for the post-certification era is becoming a priority issue. It is agreed that a stockpile of appropriate polio vaccines will need to be established, and a surveillance and response capacity will need to be maintained, in order to protect the world against any possible future outbreaks attributable either to the persistence of wild poliovirus or vaccine-derived polioviruses (VDPVs) or to the unintentional or intentional release of poliovirus from a laboratory or vaccine store. Although it has been suggested that the stockpile should consist of monovalent oral poliovirus vaccine (mOPV), many questions remain concerning its nature, financing, management, and use--in particular, because of uncertainties over future national vaccination policies, and over the availability of different vaccines, after the certification of wild poliovirus eradication. There are further uncertainties concerning the possible role and efficacy of inactivated poliovirus vaccine (IPV) used either routinely or in outbreak control in low-hygiene settings, the potential for rapid geographical spread of polioviruses should an outbreak occur after certification, and the risks inherent in introducing additional oral polio vaccine (OPV) viruses into populations in which the vaccine coverage and prevalence of immunity have declined, and which may thus favour the spread of VDPVs. Given these important gaps in knowledge, no country should discontinue polio vaccination until a coordinated policy for the post-certification era has been developed and the recommended measures have been put in place. PMID:15106300

  3. Glimpses into Pacific Lives: Some Outstanding Women.

    ERIC Educational Resources Information Center

    Simon-McWilliams, Ethel, Comp.; Green, Karen Reed, Ed.

    This document presents profiles of women who have contributed significantly to governmental changes, social and economic development, and general efforts toward change in Guam, Hawaii, American Samoa, Micronesia, the Republic of the Marshall Islands, the Commonwealth of the Northern Mariana Islands, and Palau. Each profile provides a brief…

  4. Outstanding Science Tradebooks for Children for 1994.

    ERIC Educational Resources Information Center

    Science and Children, 1994

    1994-01-01

    Includes trade book reviews from 11 categories: Animals; Archaeology, Anthropology, and Paleontology; Biography (Charles. Darwin, Jackal Woman, Rachel Carson, and Marie Curie); Botany; Chemistry and Mineralogy, Environment and Conservation; Geology and Meteorology; The Human Body and Sexuality; Nature and Life; Ocean and Shore Life; and Physics,…

  5. Preparation of g-C3N4/ZnMoCdS hybrid heterojunction catalyst with outstanding nitrogen photofixation performance under visible light via hydrothermal post-treatment.

    PubMed

    Zhang, Qian; Hu, Shaozheng; Fan, Zhiping; Liu, Daosheng; Zhao, Yanfeng; Ma, Hongfei; Li, Fayun

    2016-02-28

    Nitrogen fixation is the second most important chemical process in nature, next to photosynthesis. Herein, we report a novel g-C3N4/ZnMoCdS heterojunction photocatalyst with outstanding nitrogen photofixation ability under visible light prepared by hydrothermal post-treatment. The as-prepared ZnMoCdS is the ternary metal sulfide Zn(0.12)Mo(0.12)Cd(0.9)S(1.14) with many sulfur vacancies, not a mixture of ZnS, MoS2 and CdS. Strong electronic coupling, as evidenced by the UV-Vis, XPS and EIS results, exists between two components in g-C3N4/ZnMoCdS heterojunction photocatalysts, leading to more effective separation of photogenerated electron-hole pairs and faster interfacial charge transfer. The sulfur vacancies on ternary metal sulfides not only serve as active sites to adsorb and activate N2 molecules but also promote interfacial charge transfer from the catalyst to N2 molecules, thus significantly improving their nitrogen photofixation ability. With an optimal ZnMoCdS mass percentage of 80%, the as-prepared heterojunction photocatalyst exhibits the highest NH4(+) generation rate under visible light, which is 13.5-fold and 1.75-fold greater than those of individual g-C3N4 and ZnMoCdS, respectively.

  6. Outstanding Issues at the Al Turi Landfill in Goshen, NY

    EPA Pesticide Factsheets

    This document may be of assistance in applying the Title V air operating permit regulations. This document is part of the Title V Policy and Guidance Database available at www2.epa.gov/title-v-operating-permits/title-v-operating-permit-policy-and-guidance-document-index. Some documents in the database are a scanned or retyped version of a paper photocopy of the original. Although we have taken considerable effort to quality assure the documents, some may contain typographical errors. Contact the office that issued the document if you need a copy of the original.

  7. Outstanding Issues at the Al Turi Landfill in Goshen, NY

    EPA Pesticide Factsheets

    This document may be of assistance in applying the New Source Review (NSR) air permitting regulations including the Prevention of Significant Deterioration (PSD) requirements. This document is part of the NSR Policy and Guidance Database. Some documents in the database are a scanned or retyped version of a paper photocopy of the original. Although we have taken considerable effort to quality assure the documents, some may contain typographical errors. Contact the office that issued the document if you need a copy of the original.

  8. Griffithsin: An Antiviral Lectin with Outstanding Therapeutic Potential

    PubMed Central

    Lusvarghi, Sabrina; Bewley, Carole A.

    2016-01-01

    Griffithsin (GRFT), an algae-derived lectin, is one of the most potent viral entry inhibitors discovered to date. It is currently being developed as a microbicide with broad-spectrum activity against several enveloped viruses. GRFT can inhibit human immunodeficiency virus (HIV) infection at picomolar concentrations, surpassing the ability of most anti-HIV agents. The potential to inhibit other viruses as well as parasites has also been demonstrated. Griffithsin’s antiviral activity stems from its ability to bind terminal mannoses present in high-mannose oligosaccharides and crosslink these glycans on the surface of the viral envelope glycoproteins. Here, we review structural and biochemical studies that established mode of action and facilitated construction of GRFT analogs, mechanisms that may lead to resistance, and in vitro and pre-clinical results that support the therapeutic potential of this lectin. PMID:27783038

  9. Portraits of Outstanding Explorers. Grades 4-8+.

    ERIC Educational Resources Information Center

    Metcalf, Doris Hunter

    This resource book provides information and activity sheets on explorers of North America. The five sections of the book trace the explorers' contributions both geographically and chronologically. Each section includes thought questions, biographical portraits and skill activities for grades 4-8. Section 1, "They Opened the Door,"…

  10. Outstanding Science Trade Books for Children in 1987.

    ERIC Educational Resources Information Center

    Science and Children, 1988

    1988-01-01

    Contains the annotated bibliographies of 78 trade books from 1987. Includes an explanation of the criteria for selection of books. Categories include animals, biography, space science and astronomy, earth science, environment and conservation, life sciences, medical and health sciences, physics, technology and engineering, and others. (CW)

  11. Outstanding Science Trade Books for Children in 1988.

    ERIC Educational Resources Information Center

    Science and Children, 1989

    1989-01-01

    Lists annotations of books based on accuracy of contents, readability, format, and illustrations. Includes number of pages in each entry, price, and availability. Topics cover animals, biographies, space science, astronomy, archaeology, anthropology, earth and life sciences, medical and health sciences, physics, technology, and engineering. (RT)

  12. An Outstanding High School Breaks the Logjam of Mediocrity.

    ERIC Educational Resources Information Center

    Wexler, Henrietta

    1984-01-01

    The educational program at Captain Shreve High School is described. Elements that contribute to the school's reputation for excellence are discussed: parent involvement, handbooks for students and teachers stating school policy, strict discipline, faculty cohesiveness, high test scores, representative student council, and involvement by local…

  13. Biographies of Romanian Physicists. Vol. 1. Outstanding Romanian Physicists

    NASA Astrophysics Data System (ADS)

    Ionescu-Pallas, Nicolae

    1998-01-01

    Biographies and the most important works of the following physiscists are written: Bacaloglu Emanuel (1830-1891), Farkas Gyula (1847-1930), Hepites Stefan (1851-1922), Negreanu Dimitrie (1858-1908), Bungeteanu Dimitrie (1860-1932), Miculescu Constantin (1863-1937), Hurmuzescu Dragomir (1865-1954), Donici Nicolae (1874-1956), Maior Augustin (1882-1963), Oteteleseanu Enric (1885 - 1948), Demetrescu Gheorghe (1885 - 19690, Badarau Eugen (1997-1975), Procopiu Stefan (1890-1972), Athanasiu Gheorghe (1893-1972), Marian Victor (1896-1971), Huluibei Horia (1896-1972), Proca Alexandru (1897-1955), Vencov Stefan (1899-1955), Ionescu Theodor (1899-1988), Ionescu Aurel (1902-1954), Manu Gheorghe I. (1903-1954), Herovanu Mircea (1904-1960), Agarbiceanu Ion (1907 - 1971), Titeica Serban (1908-1985), Auslander Iosif (1911-1978), Ciorascu Florin (1914-1977).

  14. [Biography of the outstanding acupuncturist DU Xiao-shan].

    PubMed

    Ding, Min; Lu, Rui-Qin; Du, Liang-Dong; Cao, Li; Lin, Tian-Yun

    2012-09-01

    Professor DU Xiao-shan 's academic thought and clinical experiences was introduced in this paper. He has noble medical ethics and is fair to the patients without distinction. He has great learning and rich practical experiences, and he specializes in all kinds of common diseases as well as many difficult and complicated cases. He never stops studying the ancients to make innovation and he creates the technique of the quick-puncture and slow-twist and DU's heat-reinforce method. He teaches to carry forward acupuncture and moxibustion and his achievements have become an important part of acupuncture and moxibustion science.

  15. Challenges for ABC Members in 2000: Outstanding Teacher Lecture.

    ERIC Educational Resources Information Center

    Pomerenke, Paula J.

    2001-01-01

    Notes that educators of business communication have felt isolated and powerless fighting administration. Presents four challenges for business communication educators to: (1) support plain language across the continents; (2) strengthen relationships with practitioners; (3) remove the basic skills yoke that has burdened educators for so long; and…

  16. THE INTERIORS OF GIANT PLANETS: Models and Outstanding Questions

    NASA Astrophysics Data System (ADS)

    Guillot, Tristan

    2005-01-01

    We know that giant planets played a crucial role in the making of our Solar System. The discovery of giant planets orbiting other stars is a formidable opportunity to learn more about these objects, what their composition is, how various processes influence their structure and evolution, and most importantly how they form. Jupiter, Saturn, Uranus, and Neptune can be studied in detail, mostly from close spacecraft flybys. We can infer that they are all enriched in heavy elements compared to the Sun, with the relative global enrichments increasing with distance to the Sun. We can also infer that they possess dense cores of varied masses. The intercomparison of presently characterized extrasolar giant planets shows that they are also mainly made of hydrogen and helium, but that they either have significantly different amounts of heavy elements, have had different orbital evolutions, or both. Hence, many questions remain and need to be answered to make significant progress on the origins of planets.

  17. N-chlorotaurine, a natural antiseptic with outstanding tolerability.

    PubMed

    Gottardi, Waldemar; Nagl, Markus

    2010-03-01

    N-chlorotaurine, the N-chloro derivative of the amino acid taurine, is a long-lived oxidant produced by activated human granulocytes and monocytes. Supported by a high number of in vitro studies, it has mainly anti-inflammatory properties and seems to be involved in the termination of inflammation. The successful synthesis of the crystalline sodium salt (Cl-HN-CH(2)-CH(2)-SO(3)Na, NCT) facilitated its development as an endogenous antiseptic. NCT can be stored long-term at low temperatures, and it has killing activity against bacteria, fungi, viruses and parasites. Transfer of the active chlorine to amino groups of molecules of both the pathogens and the human body (transhalogenation) enhances rather than decreases its activity, mainly because of the formation of monochloramine. Furthermore, surface chlorination after sublethal incubation times in NCT leads to a post-antibiotic effect and loss of virulence of pathogens, as demonstrated for bacteria and yeasts. Being a mild oxidant, NCT proved to be very well tolerated by human tissue in Phase I and II clinical studies. A 1% aqueous solution can be applied to the eye, skin ulcerations, outer ear canal, nasal and paranasal sinuses, oral cavity and urinary bladder, and can probably be used for inhalation. Therapeutic efficacy in Phase II studies has been shown in external otitis, purulently coated crural ulcerations and keratoconjunctivitis, so far. Based upon all presently available data, NCT seems to be an antiseptic with a very good relation between tolerability and activity. Recently, C-methylated derivatives of NCT have been invented, which are of interest because of improved stability at room temperature.

  18. Outstanding issues concerning future thermospheric model improvements and applications

    NASA Astrophysics Data System (ADS)

    Owens, Jerry

    Significant improvements in the accuracy of thermosphere models have recently been achieved for the first time in more than thirty years. However, additional important issues remain to be addressed in the future in order to further improve both the current and future estimates of density values that affect the various assets, satellite and spacecraft, that society has come to depend upon. These include high latitude processes that are not yet treated adequately in the models, as well as accuracy of future estimates of model inputs such as both short and long term solar activity plus physical model structure and reliability. Orbiting spacecraft are affected by the total density as well as its composition. These parameters affect satellite and spacecraft tracking, operations, performance, orbital debris, lifetime estimation, and logistics planning for re-boost activities. This paper will review the various issues and relative importance for users of thermospheric model products.

  19. THE PROGRAMS AND SERVICES OF AN OUTSTANDING AREA VOCATIONAL SCHOOL.

    ERIC Educational Resources Information Center

    RAMEY, GEORGE L.

    THE MAYO STATE VOCATIONAL-TECHNICAL SCHOOL WAS ESTABLISHED AT PAINTSVILLE, KENTUCKY IN 1938. IT IS LOCATED IN A RURAL AREA OF KENTUCKY WHERE COAL MINING HAS PROVIDED JOBS FOR MANY FAMILIES. IN RECENT YEARS, DEPLETION OF COAL AND MECHANIZATION OF MINING HAVE BEEN MAJOR FACTORS CAUSING UNEMPLOYMENT IN THIS AREA. THE MAYO SCHOOL HAS SERVED TO PROVIDE…

  20. Falciparum malaria: sticking up, standing out and out-standing.

    PubMed

    Cooke, B; Coppel, R; Wahlgren, M

    2000-10-01

    Cytoadherence is believed to be fundamental for the survival of Plasmodium falciparum in vivo and, uniquely, is a major determinant of the virulence of this parasite. Despite the widely professed importance of cytoadhesion in the development of severe disease, there are a number of aspects of this highly complex process that remain poorly understood. Recent progress in the understanding of cytoadhesive phenomena was discussed extensively at the Molecular Approaches to Malaria conference, Lorne, Australia, 2-5 February 2000. Here, Brian Cooke, Mats Wahlgren and Ross Coppel consider just how far we have progressed during the past 30 years and highlight what is still missing in our understanding of the mechanisms and clinical relevance of this apparently vital process.

  1. Research program in elementary particle theory: Outstanding junior investigator program

    SciTech Connect

    Bowick, M.J. . Dept. of Physics)

    1989-01-01

    This report briefly discusses the following topics: high-temperature strings; axionic black holes and wormholes; equations of motion for massless modes as vanishing curvature; vertex algebras and string theory; and massive axions. (LSP)

  2. Ancient deltas on Mars: outstanding targets for martian habitability?

    NASA Astrophysics Data System (ADS)

    Gupta, S.; Fawdon, P.; Grindrod, P. M.; Balme, M. R.; Hauber, E.; Warner, N. H.; Muller, J. P.

    2014-12-01

    The identification of putative ancient deltaic sedimentary systems on Mars has been both exciting and controversial. Our excitement is elicted by the potential provided by deltas as evidence for standing bodies of water associated with the deltas, and the resulting implications for both the ancient climate of Mars and ancient habitability. The controversy stems from how confident can we be in the identification of ancient deltaic systems from orbital data, and how robust are our assertions about the habitability potential of such settings. Delta systems in particular are key astrobiological targets because at their distal toes fine-grained sediment (ie., clays) settle from suspension in a lower energy setting and they are commonly characterised by high rates of sedimentation. This leads to high preservation potential of biosignatures. Targeting of future Mars rovers to investigate deltaic landing sites requires better understanding of these issues to reduce exploration risk. In this presentation, we describe the key criteria that enable us to make robust interpretations of deltaic stratigraphy and constrain delta evolution for martian systems. In particular, the past 10 years has seen in a revolution in our process understanding of terrestrial delta systems through a combination of field, experimental and numerical modelling studies. Analysis of martian deltas has much to gain from these results. We go on to consider why deltaic systems offer potential as astrobiological target paleoenvironments. We use the exhumed delta system (Hypanis delta system) at the termination of Hypanis Vallis, 11.8°N, 314.96°E as a case example. This system, situated in Xanthe Terra, comprises layered sedimentary rocks with an overall multi-lobate geometry and associated inverted channel networks. The Hypanis 'delta' is a proposed landing site for the ExoMars rover and also for the NASA 2020 mission.

  3. Turbulence: The chief outstanding difficulty of our subject

    NASA Technical Reports Server (NTRS)

    Bradshaw, Peter

    1992-01-01

    A review of interesting current topics in turbulence research is decorated with examples of popular fallacies about the behavior of turbulence. Topics include the status of the Law of the Wall, especially in compressible flow; analogies between the effects of Reynolds numbers, pressure gradient, unsteadiness and roughness change; the status of Kolmogorov's universal equilibrium theory and local isotropy of the small eddies; turbulence modelling, with reference to universality, pressure-strain modelling and the dissipation equation; and chaos. Fallacies include the mixing-length concept; the effect of pressure gradient on Reynolds shear stress; the separability of time and space derivatives; models of the dissipation equation; and chaos.

  4. 33 CFR 125.55 - Outstanding Port Security Card Applications.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... an application for a Coast Guard Port Security Card and who did not receive such a document prior to May 1, 1956, shall submit a new application in accordance with the requirements of this part....

  5. 33 CFR 125.55 - Outstanding Port Security Card Applications.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... an application for a Coast Guard Port Security Card and who did not receive such a document prior to May 1, 1956, shall submit a new application in accordance with the requirements of this part....

  6. 11 CFR 9034.5 - Net outstanding campaign obligations.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... was determined. (e) Contributions received from joint fundraising activities conducted under 11 CFR... received by the fundraising representative committee and shall be included in the candidate's statement...

  7. ISMB 2016 offers outstanding science, networking, and celebration

    PubMed Central

    Fogg, Christiana

    2016-01-01

    The annual international conference on Intelligent Systems for Molecular Biology (ISMB) is the major meeting of the International Society for Computational Biology (ISCB). Over the past 23 years the ISMB conference has grown to become the world's largest bioinformatics/computational biology conference. ISMB 2016 will be the year's most important computational biology event globally. The conferences provide a multidisciplinary forum for disseminating the latest developments in bioinformatics/computational biology. ISMB brings together scientists from computer science, molecular biology, mathematics, statistics and related fields. Its principal focus is on the development and application of advanced computational methods for biological problems. ISMB 2016 offers the strongest scientific program and the broadest scope of any international bioinformatics/computational biology conference. Building on past successes, the conference is designed to cater to variety of disciplines within the bioinformatics/computational biology community.  ISMB 2016 takes place July 8 - 12 at the Swan and Dolphin Hotel in Orlando, Florida, United States. For two days preceding the conference, additional opportunities including Satellite Meetings, Student Council Symposium, and a selection of Special Interest Group Meetings and Applied Knowledge Exchange Sessions (AKES) are all offered to enable registered participants to learn more on the latest methods and tools within specialty research areas. PMID:27347392

  8. Sexual and reproductive health: Progress and outstanding needs

    PubMed Central

    Snow, Rachel C.; Laski, Laura; Mutumba, Massy

    2015-01-01

    We examine progress towards the 1994 International Conference on Population and Development (ICPD) commitment to provide universal access to sexual and reproductive health (SRH) services by 2014, with an emphasis on changes for those living in poor and emerging economies. Accomplishments include a 45% decline in the maternal mortality ratio (MMR) between 1990 and 2013; 11.5% decline in global unmet need for modern contraception; ~21% increase in skilled birth attendance; and declines in both the case fatality rate and rate of abortion. Yet aggregate gains mask stark inequalities, with low coverage of services for the poorest women. Demographic and Health Surveys and Multiple Indicator Cluster Surveys from 80 developing countries highlight persistent disparities in skilled birth attendance by household wealth: in 70 of 80 countries (88%), ≥80% of women in the highest quintile were attended by a skilled provider at last birth; in only 23 of the same countries (29%) was this the case for women in the lowest wealth quintile. While there have been notable declines in HIV incidence and prevalence, women affected by HIV are too often bereft of other SRH services, including family planning. Achieving universal access to SRH will require substantially greater investment in comprehensive and integrated services that reach the poor. PMID:25555027

  9. Portraits of Outstanding African American Women. Grades 4-8+.

    ERIC Educational Resources Information Center

    Metcalf, Doris Hunter

    This resource book provides information and activity sheets on the achievements and contributions of exceptional African American women, past and present. The book contains six sections, thematically organized around the central issue(s) affecting the lives of the women featured. Introductory questions, biographical portraits and skill-building…

  10. ISMB 2016 offers outstanding science, networking, and celebration.

    PubMed

    Fogg, Christiana

    2016-01-01

    The annual international conference on Intelligent Systems for Molecular Biology (ISMB) is the major meeting of the International Society for Computational Biology (ISCB). Over the past 23 years the ISMB conference has grown to become the world's largest bioinformatics/computational biology conference. ISMB 2016 will be the year's most important computational biology event globally. The conferences provide a multidisciplinary forum for disseminating the latest developments in bioinformatics/computational biology. ISMB brings together scientists from computer science, molecular biology, mathematics, statistics and related fields. Its principal focus is on the development and application of advanced computational methods for biological problems. ISMB 2016 offers the strongest scientific program and the broadest scope of any international bioinformatics/computational biology conference. Building on past successes, the conference is designed to cater to variety of disciplines within the bioinformatics/computational biology community.  ISMB 2016 takes place July 8 - 12 at the Swan and Dolphin Hotel in Orlando, Florida, United States. For two days preceding the conference, additional opportunities including Satellite Meetings, Student Council Symposium, and a selection of Special Interest Group Meetings and Applied Knowledge Exchange Sessions (AKES) are all offered to enable registered participants to learn more on the latest methods and tools within specialty research areas.

  11. Engaging Hard to Reach Families:" Learning from Five 'Outstanding' Schools"

    ERIC Educational Resources Information Center

    Watt, Laura

    2016-01-01

    Parental engagement is shown to have a significant effect on educational outcomes, especially at primary school level. It can take a variety of forms including helping children with homework and attending parents' evenings. Evidence suggests that parents with lower socio-economic status (SES) are less likely to engage in their children's education…

  12. A Proposal to Investigate Outstanding Problems in Astronomy

    NASA Technical Reports Server (NTRS)

    Ford, Holland

    2002-01-01

    During the period leading up to the spectacular launch of the Space Shuttle Columbia (STS-109) on 1 March 2002 6:22 am EST, the team worked hard on a myriad of tasks to be ready for launch. Our launch support included preparations and rehearsals for the support during the mission, preparation for the SMOV and ERO program, and work to have the science team's data pipeline (APSIS) and data archive (SDA) ready by launch. A core of the team that was at the GSFC during the EVA that installed ACS monitored the turn-on and aliveness tests of ACS. One hour after installation of ACS in the HST George Hartig was showing those of us at Goddard the telemetry which demonstrated that the HRC and WFC CCDs were cooling to their preset temperatures. The TECs had survived launch! After launch, the team had several immediate and demanding tasks. We had to process the ERO observations through our pipeline and understand the limitations of the ground based-based calibrations, and simultaneously prepare the EROs for public release. The ERO images and the SMOV calibrations demonstrated that ACS met or exceeded its specifications for image quality and sensitivity. It is the most sensitive instrument that Hubble has had. The ERO images themselves made the front page of all of the major newspapers in the US. During the months after launch we have worked on the SMOV observations, and are analyzing the data from our science program.

  13. Outstanding Characteristics of Thrombokinase Isolated from Bovine Plasma

    PubMed Central

    Milstone, J. H.; Oulianoff, N.; Milstone, V. K.

    1963-01-01

    Thrombokinase has been isolated from bovine plasma by a procedure which begins with the highly purified product of a previously described method, chromatographs it on DEAE-cellulose, and then fractionates it by continuous flow electrophoresis, yielding 0.2 mg per liter of oxalated plasma. The electrophoretic fraction has shown a single boundary in the ultracentrifuge; and its esterase activity on toluenesulfonylarginine methyl ester has been about the same as that of thrombokinase previously isolated by repeated electrophoretic fractionations. Thrombokinase is a euglobulin with minimum solubility near pH 5.0. It is most stable within the pH range 7.5 to 9.5; but there is also a peak in the stability curve near pH 1.8. A few micrograms of thrombokinase per milliliter can activate prothrombin in the presence of EDTA. A few thousandths of a microgram causes rapid production of thrombin in the system: prothrombin, thrombokinase, calcium chloride, phosphatide, "accelerator." But, thrombokinase has less than 1/175 the proteolytic activity of crystallized trypsin. PMID:14080818

  14. Educational utilization of outstanding spherulitic rhyolite occurred in Cheongsong, Korea

    NASA Astrophysics Data System (ADS)

    Jang, Y. D.; Woo, H.

    2015-12-01

    Cheongsong is located in the central eastern area of South Korea. Unique spherulitic rhyolites occur in this region as dykes formed about 48 to 50 million years ago. Composed of quartz and feldspar these spherulitic rhyolites show various flowerlike shapes, such as chrysanthemum, dandelion, rose, carnation, sunflower, dahlia and so on, so they are called 'flower stones'. The spherulite indicates that it was undercooled caused by very fast cooling at a shallow depth near the surface and the variety of shapes resulted from the difference of crystallizing conditions. According to the condition, minerals start to crystallize homogeneously or heterogeneously and develop as rounded or fibrous shapes, representing beautiful patterns when combined. These spherulitic structures are very rare not only in Korea but also globally, being valuable for research and preservation because of their rarity, beauty and diversity. Cheongsong therefore applies to the UGG (UNESCO Global Geopark) in an attempt to popularize the flower stones and use them as education materials which can also be incorporated in other valuable sites. The exhibition center provides diverse types of flower stones in which visitors could learn about rhyolitic volcanism, crystallization and spherulite and can experience the process of changing a rough stone into a flower stone. A geotrail course has also been created, showing each type of flower stone on the outcrop and providing educational programs about geological mechanisms of the stones with a trained guide.

  15. Outstanding Science Trade Books for Children in 1989.

    ERIC Educational Resources Information Center

    Science and Children, 1990

    1990-01-01

    Listed are 100 trade books with brief descriptions and availability information. Categories include animals, biography, space science and astronomy, anthropology and paleontology, life sciences, earth science, conservation, medical and health sciences, physics, technology, and engineering. Criteria for inclusion in this annual list are presented.…

  16. Outstanding Science Trade Books for Children in 1991.

    ERIC Educational Resources Information Center

    Science and Children, 1992

    1992-01-01

    Presents an annotated bibliography listed under the following categories: (1) Animals; (2) Archaeology, Anthropology, and Paleontology; (3) Biography; (4) Environment and Conservation; (5) Nature and Life; (6) Physics, Technology, and Engineering; and (7) Underwater and Outer Space. Selection criteria are given. (MDH)

  17. Manfred Girbardt and Charles Bracker: outstanding pioneers in fungal microscopy.

    PubMed

    Bartnicki-Garcia, Salomon

    2015-01-01

    Midway through the twentieth century, the availability of new and improved optical and electronic microscopes facilitated rapid advances in the elucidation of the fine structure of fungal cells. In this Essay, I pay tribute to Manfred Girbardt (1919-1991) and Charles Bracker (1938-2012)—two individuals who, despite being separated by geography and the restrictions of the Cold War, both made equally fundamental discoveries in fungal cell ultrastructure and set high standards for specimen manipulation and image processing.

  18. It Took Time and Tenacity to Make Thurston Outstanding.

    ERIC Educational Resources Information Center

    Cutler, Marilyn H.

    1968-01-01

    A description of how educational plans for a flexibly scheduled, nongraded intermediate school were implemented architecturally. Consideration of architectural elements is amplified by photographs and plans. (FPO)

  19. A Proposal to Investigate Outstanding Problems in Astronomy

    NASA Technical Reports Server (NTRS)

    Ford, Holland

    2004-01-01

    Holland Ford and Garth Illingworth organized, managed, and coordinated a very successful year of work by the ACS science team. The team is working well together on analysis of ACS observations and supporting data from other satellites and from ground-based observations. Many important papers have been published or submitted, spanning science from observations of newly discovered debris disks around young stars, to the characterization of galaxy clusters at half the age of the Universe, to observations of proto-clusters with ages of approx. 2 billion years, to searches for galaxies forming within the first billion years after the birth of the universe. One important milestone during the year was the annual team meeting during September. The meeting, organized and led by Holland and Garth, produced a plan for analysis of ACS observations during the coming year, and a plan for obtaining supporting observations with large ground-based telescopes.

  20. Superhydrophobicity in perfection: the outstanding properties of the lotus leaf

    PubMed Central

    Ditsche-Kuru, Petra; Neinhuis, Christoph; Barthlott, Wilhelm

    2011-01-01

    Summary Lotus leaves have become an icon for superhydrophobicity and self-cleaning surfaces, and have led to the concept of the ‘Lotus effect’. Although many other plants have superhydrophobic surfaces with almost similar contact angles, the lotus shows better stability and perfection of its water repellency. Here, we compare the relevant properties such as the micro- and nano-structure, the chemical composition of the waxes and the mechanical properties of lotus with its competitors. It soon becomes obvious that the upper epidermis of the lotus leaf has developed some unrivaled optimizations. The extraordinary shape and the density of the papillae are the basis for the extremely reduced contact area between surface and water drops. The exceptional dense layer of very small epicuticular wax tubules is a result of their unique chemical composition. The mechanical robustness of the papillae and the wax tubules reduce damage and are the basis for the perfection and durability of the water repellency. A reason for the optimization, particularly of the upper side of the lotus leaf, can be deduced from the fact that the stomata are located in the upper epidermis. Here, the impact of rain and contamination is higher than on the lower epidermis. The lotus plant has successfully developed an excellent protection for this delicate epistomatic surface of its leaves. PMID:21977427

  1. The 7% Solution - Cleaning Up After Fred Vine's Outstanding Successes

    NASA Astrophysics Data System (ADS)

    Hey, R. N.

    2013-12-01

    Fred Vine was the first & greatest of the wiggle pickers, founding the marine magnetic anomaly field with his 1963 Vine & Matthews paper. Two of his classic study areas were Juan de Fuca & the Reykjanes Ridge. In Juan de Fuca, he recognized the axial symmetry in the Raff & Mason data that had shown the existence of magnetic stripes on the seafloor, demonstrating the seafloor spreading there that Tuzo Wilson had predicted. Fred's iconic color figure of these anomalies perfectly correlated with the magnetic reversal time scale (after the discovery of the Jaramillo event) became the striking cover illustration of 'The History of the Earth's Crust', the symposium volume of the influential 1966 Goddard meeting that confirmed the reality of seafloor spreading & continental drift. Everything Fred did in Juan de Fuca was correct, but fortunately for me he didn't do everything. Some of the linear magnetic anomaly offsets there became a major puzzle in 1967 when Jason Morgan & Dan McKenzie discovered plate tectonics, because those offsets were oblique to the ridges & transforms & thus were incompatible with simple plate tectonics. Although the oblique anomaly offsets look like faults, they instead turned out to be propagating rift pseudofault wakes with no relative motion along them, an interpretation resulting from my analysis of Galapagos magnetic anomalies. Fred's other iconic color figure was his correlation of the Heirtzler et al. Reykjanes Ridge aeromagnetic data with the reversal timescale. This figure, showing the symmetry predicted by seafloor spreading & field reversals, was another key step in the scientific revolution. At the Goddard Symposium Fred was asked if he'd tested the symmetry statistically & he replied "I never touch statistics. I just deal with the facts'. Fred was trying to have a scientific revolution, & of course on that scale pretty symmetric seafloor spreading is a reality. However, fine-scale asymmetric spreading can be seen in his figure (the asymmetry increases towards Iceland where we had the great advantage of working), & contrary to conventional wisdom the V-shaped ridges, scarps & troughs (VSRs) discovered by Peter Vogt are not symmetric about the Reykjanes Ridge axis. Analysis of magnetic anomaly data from our 2007 expedition by Benediktsdóttir et al. shows these asymmetries were created by rift propagation both away from & towards Iceland, suggesting a tectonic alternative to the magmatic pulsing plume explanation for the VSRs. These results further suggest that the massive transform-eliminating North Atlantic plate boundary reorganization that created the linear obliquely-spreading Reykjanes Ridge might also be a propagating rift phenomenon instead of a thermal phenomenon as generally assumed, & we hope to present results from a new Reykjanes Ridge expedition later this summer designed to determine exactly how this reorganization is occurring. That so much research for several decades has resulted from the small (the 7% number in the title is made up - inspired by Fred I never did learn statistics) modification of Fred's results is a tribute to the overwhelming success of seafloor spreading & plate tectonics. Unfortunately for Vine, Morgan & McKenzie, this scientific revolution appears to have been too profound for Nobel Prizes.

  2. Outstanding Language Competence and Cytoarchitecture in Broca's Speech Region

    ERIC Educational Resources Information Center

    Amunts, Katrin; Schleicher, Axel; Zilles, Karl

    2004-01-01

    Studies on brains of individuals with an exceptional mental capacity are of widespread interest. Here, we analyze the cytoarchitecture of areas 44 and 45 (anatomical correlates of Broca's speech region) of a person with a documented extraordinary competence in language performance (Emil Krebs, E.K.), and compared it with 11 control brains.…

  3. Government & Private Enterprise--A Model Partnership Delivering Outstanding Schools

    ERIC Educational Resources Information Center

    Ross, Mick

    2011-01-01

    In the Australian state of Victoria, the State Government is responsible for delivering a public education system for the compulsory school years. It uses the Department of Education and Early Childhood Development (DEECD) as its agency to develop its educational curriculum, engage with local communities, develop and maintain a portfolio of…

  4. A Proposal to Investigate Outstanding Problems in Astronomy

    NASA Technical Reports Server (NTRS)

    Ford, Holland

    2003-01-01

    During the past year the ACS science team has concentrated on analyzing ACS observations, writing papers, and disseminating our results to the astronomy community at conferences and workshops around the world. We also have put considerable effort in getting our results to the public via public lectures and through press releases. Taking a very broad view of our program, we are investigating the evolution of galaxies and clusters of galaxies from their birth, approximately one billion years after the beginning of the Universe, to the present. We have found and characterized a population of galaxies that are no more than 1.4 billion years old. These may well be the Universe s first generation of infant galaxies. Looking at the Universe 500,000 years later, we see what appears to be a cluster of galaxies just beginning to form (a proto-cluster) around a luminous radio galaxy. Moving forward in time and closer to the present, we are studying clusters of galaxies that are less than half the age of the Universe. Our observations and analysis lead us to the important conclusion that the elliptical galaxies in these clusters must have had their last significant star formation some three billion years earlier, which is about the time when the proto-cluster was forming. Coming still closer to home, we are observing nearby massive clusters of galaxies that are approximately 12 billion years old. The gravity from these large aggregates of dark and luminous matter is so strong it warps space-time itself, and makes the cluster act as a cosmic telescope that magnifies the distant galaxies behind the cluster. We used the magnified (or lensed) galaxies to map the distribution of the dominant matter within the clusters, which is the so-called dark matter (the matter is invisible, and its nature is unknown). We also are using these cosmic telescopes to study the distant lensed galaxies that would otherwise be too small and too faint to be seen even by Hubble and the ACS.

  5. Troy, N.H. Wastewater Treatment Plant Superintendent Recognized for Outstanding Service

    EPA Pesticide Factsheets

    Justin Frazier, Superintendent of the Troy, N.H. Wastewater Treatment Plant, was recently honored with a 2015 Regional Wastewater Treatment Plant Operator of the Year Excellence Award by the US EPA’s New England regional office.

  6. Task J: Outstanding Junior Investigator (OJI). Technical progress report, [November 1, 1993--October 31, 1993

    SciTech Connect

    Karchin, P.E.

    1993-07-06

    We report on an existing program of research on the production and decay of particles containing the charm and beauty quarks. Charm is studied in Fermilab fixed target experiments E769 and E691. Design and development for a hadron collider beauty experiment is studied in CERN test experiment P238 and in simulation studies for the SSC.

  7. The lakes and seas of Titan: outstanding questions and future exploration

    NASA Astrophysics Data System (ADS)

    Stofan, Ellen R.; Lunine, Jonathan; Lorenz, Ralph

    2010-04-01

    More than 400 lakes have been identified near Titan's north pole, with sizes that range from a few km2 to seas in excess of 100,000 km2. The lakes and seas fill through rainfall and/or intersection with the subsurface liquid methane table, and provide the first evidence for an active condensable-liquid cycle on another planetary body. Many aspects of Titan's seas are unknown, including their composition, depth, and shoreline characteristics, but are key to understanding Titan's hydrological cycle. In addition to ethane, methane and nitrogen, Titan's seas will likely contain dissolved amounts of many other compounds. It is possible that further chemistry may take place, yielding prebiotic molecules impossible to form in the gas phase. It has even been suggested that autocatalytic chemical cycles might yield far-from-equilibrium abundance patterns or mimic the functionality of biological systems. The Titan Mare Explorer (TiME) is a Discovery-class mission to a Titan sea that provides in situ measurements to constrain Titan's active methane cycle as well as its intriguing prebiotic organic chemistry. The target for TiME is Ligeia Mare, at 78°N, 250°W, one of the largest seas identified on Titan. TiME would test the Advanced Stirling Radioisotope Generators (ASRGs), and would pioneer low-cost, outer solar system missions. Science objectives for TiME include measuring the chemistry of the sea to determine their role as a source and sink of methane and its chemical products, determining the depth of the sea to help constrain organic inventory, ascertaining marine processes including the nature of the sea surface and sea circulation, and determining sea surface meteorology. TiME science is fundamental, and will provide the first in situ exploration of an extraterrestrial sea, the first in situ measurements of an active liquid cycle beyond Earth, and aid in understanding the limits of life in our solar system.

  8. Upper Blackstone Water Pollution Abatement District Chief Operator Recognized for Outstanding Service

    EPA Pesticide Factsheets

    Joseph Nowak, a resident of Ware Mass. and Chief Operator of the Upper Blackstone Water Pollution Abatement District (District) in Milbury, Mass., was honored by EPA with a 2016 Regional Wastewater Treatment Plant Operator of the Year Excellence Award.

  9. EPA Recognizes Rooms to Go in Suwanee, Georgia for Outstanding Waste Reduction Efforts

    EPA Pesticide Factsheets

    ATLANTA --- Today, the U.S. Environmental Protection Agency (EPA) recognizes the waste reduction accomplishments of Rooms to Go in Suwanee, Ga. along with the other 28 participants in and endorsers of EPA's Waste Wise program and EPA's Food Recovery Challe

  10. 12 New England Organizations Honored for Outstanding Achievements in Energy Efficiency

    EPA Pesticide Factsheets

    EPA and the U.S. Department of Energy (DOE) are honoring 12 New England businesses and organizations for their commitment to saving energy, saving money, and protecting the environment through superior energy efficiency achievements.

  11. Tailor-Made Distribution of Nanoparticles in Blend Structure toward Outstanding Electromagnetic Interference Shielding.

    PubMed

    Biswas, Sourav; Kar, Goutam Prasanna; Bose, Suryasarathi

    2015-11-18

    Engineering blend structure with tailor-made distribution of nanoparticles is the prime requisite to obtain materials with extraordinary properties. Herein, a unique strategy of distributing nanoparticles in different phases of a blend structure has resulted in >99% blocking of incoming electromagnetic (EM) radiation. This is accomplished by designing a ternary polymer blend structure using polycarbonate (PC), poly(vinylidene fluoride) (PVDF), and poly(methyl methacrylate) (PMMA) to simultaneously improve the structural, electrical, and electromagnetic interference shielding (EMI). The blend structure was made conducting by preferentially localizing the multi-wall nanotubes (MWNTs) in the PVDF phase. By taking advantage of "π-π stacking" MWNTs was noncovalently modified with an imidazolium based ionic liquid (IL). Interestingly, the enhanced dispersion of IL-MWNTs in PVDF improved the electrical conductivity of the blends significantly. While one key requisite to attenuate EM radiation (i.e., electrical conductivity) was achieved using MWNTs, the magnetic properties of the blend structure was tuned by introducing barium ferrite (BaFe) nanoparticles, which can interact with the incoming EM radiation. By suitably modifying the surface of BaFe nanoparticles, we can tailor their localization under the macroscopic processing condition. The precise localization of BaFe nanoparticles in the PC phase, due to nucleophilic substitution reaction, and the MWNTs in the PVDF phase not only improved the conductivity but also facilitated in absorption of the incoming microwave radiation due to synergetic effect from MWNT and BaFe. The shielding effectiveness (SE) was measured in X and Ku band, and an enhanced SE of -37 dB was noted at 18 GHz frequency. PMMA, which acted as an interfacial modifier in PC/PVDF blends further, resulting in a significant enhancement in the mechanical properties besides retaining high SE. This study opens a new avenue in designing mechanically strong microwave absorbers with a suitable combination of materials.

  12. How to Present It? On the Rhetoric of an Outstanding Lecturer

    ERIC Educational Resources Information Center

    Movshovitz-Hadar, Nitsa; Hazzan, Orit

    2004-01-01

    This paper analyses a lecture by an excellent teaching award winner professor of mathematics, given to high school mathematics teachers. The analysis is based upon two sources: (i) the lecture plan, as expressed in a series of 29 transparencies, prepared by the lecturer in advance; (ii) the actual implementation of the lecture, as transcribed from…

  13. Sci-Tech Books of 1977: One Hundred Outstanding Titles for General Library Collections

    ERIC Educational Resources Information Center

    Mount, Ellis; Crockett, Edith S.

    1978-01-01

    This annotated bibliography is intended for public library collections, although many selections are worthy of inclusion in college or special libraries. Subdivisions listed are: animal life, anthropology, biology, earth sciences, energy, environmental sciences, health, natural history, plants, psychology, and transportation. (JAB)

  14. [Analysis of LIU Zhang-jie's acupuncture academic thoughts: an outstanding follower of Chengjiang acupuncture school].

    PubMed

    Zheng, Mei; Zhang, Jian-Bin; Xia, You-Bing; Meng, Xian-Jun; Zhang, Yong-Shu

    2012-10-01

    Mr. LIU Zhang-jie, one of the disciples of CHENG Dan-an who is considered as the initiator of the Chengjiang acupuncture school, is a famous acupuncturist in Fujian Province. With the collection and arrangement of Mr. LIU's literatures, medical records, books and interview of his student. ZHANG Yong-shu, Mr. LIU's academic characteristics are analyzed and summarized in this paper, mainly including being focused on finger power and manipulating without pain; being good at direct moxibustion to elevate yang-qi and drive out evil spirits; highlighting meridian syndrome differentiation and combined use of the four diagnostic methods; each disease has its own pathogeny, eliminating pathogen is the key; valuing the curative effect with flexible apply of acupuncture and Chinese medicine. In a word, Mr. LIU, who inherited the school's scholarism and developed it into next level, is one of Chengjiang acupuncture school's representative figures.

  15. Improvisation and Teacher Expertise: Implications for the Professional Development of Outstanding Teachers

    ERIC Educational Resources Information Center

    Sorensen, Nicholas

    2017-01-01

    This article reports on the findings of a PhD research project into the improvisatory nature of teacher expertise. The data are taken from a series of comparative case studies of seven experienced teachers working in secondary schools in the South West of England and who have been identified as being expert within their school setting. Constant…

  16. Outstanding AFCPE[R] Conference Paper: Debt Burden of Young Adults in the United States

    ERIC Educational Resources Information Center

    Kim, Jinhee; Chatterjee, Swarn; Kim, Jung Eun

    2012-01-01

    Factors associated with the borrowing behavior of young adults who are transitioning from financial dependence to financial independence were identified. Data used were from the 2009 Transition to Adulthood and its parental companion data set, Panel Studies of Income Dynamics. Results indicate that age, gender, race, and work status are associated…

  17. 12th Annual Survey of High Achievers: Attitudes and Opinions from the Nation's Outstanding Teen Leaders.

    ERIC Educational Resources Information Center

    Who's Who among American High School Students, Northbrook, IL.

    The report, fact sheets, and news releases cite findings of a survey involving 22,000 Ss to determine the attitudes of high school student leaders. Responses were tabulated for the following areas: demographics, government mandates/taxes, American institutions, domestic issues, foreign issues/defense, religious beliefs/practices, marriage/sex,…

  18. ACCE/ACS National Educator and Leader of the Year Winners: AEC Congratulates These Outstanding Educators

    ERIC Educational Resources Information Center

    Australian Educational Computing, 2012

    2012-01-01

    This article presents the ACCE/ACS National Educator and Leader of the Year winners. Anne Mirtschin is the recipient of the ACCE/ACS 2012 Educator of the Year Award. Mirtschin is an innovative teacher at Hawkesdale P-12 College a small rural school that is isolated culturally and geographically. She uses online tools and technology to create…

  19. Reflections on a Decade of Global Rankings: What We've Learned and Outstanding Issues

    ERIC Educational Resources Information Center

    Hazelkorn, Ellen

    2014-01-01

    Ten years after the first global rankings appeared, it is clear that they have had an extraordinary impact on higher education. While there are fundamental questions about whether rankings measure either quality or what's meaningful, they have succeeded in exposing higher education to international comparison. More so, because of the…

  20. Seabrook, N.H. Wastewater Treatment Plant Chief Operator Recognized for Outstanding Service

    EPA Pesticide Factsheets

    Dustin Price, a resident of Berwick Maine and the Chief Operator of the Seabrook, N.H. Wastewater Treatment Plant, was honored by EPA with a 2016 Regional Wastewater Treatment Plant Operator of the Year Excellence Award.

  1. Outstanding Dissertations in Bilingual Education, Recognized by the National Advisory Council on Bilingual Education, 1979.

    ERIC Educational Resources Information Center

    National Clearinghouse for Bilingual Education, Arlington, VA.

    The following award-winning dissertations in bilingual education are included here: (1) "The 1974 Bilingual Education Amendments: Revolution, Reaction, or Reform" by Susan Gilbert Schneider; (2) "(Memory Organization, Bilingualism, and Interlingual Interference: A Comparative Analysis of the Semantic Distance and Semantic Judgment…

  2. Ultramarathon is an outstanding model for the study of adaptive responses to extreme load and stress.

    PubMed

    Millet, Grégoire P; Millet, Guillaume Y

    2012-07-19

    Ultramarathons comprise any sporting event involving running longer than the traditional marathon length of 42.195 km (26.2 miles). Studies on ultramarathon participants can investigate the acute consequences of ultra-endurance exercise on inflammation and cardiovascular or renal consequences, as well as endocrine/energetic aspects, and examine the tissue recovery process over several days of extreme physical load. In a study published in BMC Medicine, Schütz et al. followed 44 ultramarathon runners over 4,487 km from South Italy to North Cape, Norway (the Trans Europe Foot Race 2009) and recorded daily sets of data from magnetic resonance imaging, psychometric, body composition and biological measurements. The findings will allow us to better understand the timecourse of degeneration/regeneration of some lower leg tissues such as knee joint cartilage, to differentiate running-induced from age-induced pathologies (for example, retropatelar arthritis) and finally to assess the interindividual susceptibility to injuries. Moreover, it will also provide new information about the complex interplay between cerebral adaptations/alterations and hormonal influences resulting from endurance exercise and provide data on the dose-response relationship between exercise and brain structure/function. Overall, this study represents a unique attempt to investigate the limits of the adaptive response of human bodies.Please see related article: http://www.biomedcentral.com/1741-7015/10/78.

  3. Pieter Cullis: an outstanding lipid biophysicist, drug delivery scientist, educator, and entrepreneur.

    PubMed

    Huang, Leaf; Miao, Lei

    2016-11-01

    There are much said about Pieter Cullis in this special volume honoring him. He was the pioneer to study the role of hexagonal HII phase in membrane fusion and the one who applied this concept for the design of lipid nanoparticles. He was also the first to utilize remote loading techniques for the delivery of amphipathic bases. At the same time, he is a tremendous entrepreneur and an excellent mentor. He is, without doubt, an exceptional scientist and set us an excellent model to follow.

  4. Morgan Receives 2013 Paul G. Silver Award for Outstanding Scientific Service: Response

    NASA Astrophysics Data System (ADS)

    Morgan, Julia K.

    2014-09-01

    Thank you, Kelin, for your kind words and nomination, and thanks to the Tectonophysics, Seismology, and Geodesy sections for extending this honor. I also want to recognize the efforts of so many others who really drove the GeoPRISMS program; my job was primarily as a facilitator, channeling the great ideas of the community into distinctive scientific opportunities benefiting a large number of researchers, and what a creative, energetic, and generous community it is. It has been particularly satisfying to watch GeoPRISMS grow during my term as chair, especially with the enthusiastic involvement of the students and early-career researchers who are the future of the program.

  5. Personal Qualities of a Language Arts Teacher: Traits and Perspectives, Daily Inspiration from Outstanding Educators.

    ERIC Educational Resources Information Center

    Sandel, Lenore

    In this book 100 dynamic educators share some words that are important to them and what those words mean for teaching--here are the ideas that can start a teacher's day or stimulate new ideas for class activities. According to the book, each educator was asked to select a term that reflected an important idea for teaching; the terms appear in…

  6. Elliptical Galaxies and Bulges of Disc Galaxies: Summary of Progress and Outstanding Issues

    NASA Astrophysics Data System (ADS)

    Kormendy, John

    Bulge components of disc galaxies are the high-density centers interior to their outer discs. Once thought to be equivalent to elliptical galaxies, their observed properties and formation histories turn out to be richer and more varied than those of ellipticals. This book reviews progress in many areas of bulge studies. Two advances deserve emphasis: (1) Observations divide bulges into "classical bulges" that look indistinguishable from ellipticals and "pseudobulges" that are discier and (except in S0s) more actively star-forming than are ellipticals. Classical bulges and ellipticals are thought to form by major galaxy mergers. Discy pseudobulges are a product of the slow ("secular") evolution of galaxy discs. Nonaxisymmetries such as bars and oval distortions transport some disc gas toward the center, where it starbursts and builds a dense central component that is discier in structure than are classical bulges. Secular evolution explains many regular structures (e.g., rings) seen in galaxy discs. It is a new area of galaxy evolution work that complements hierarchical clustering. (2) Studies of high-redshift galaxies reveal that their discs are so gas-rich that they are violently unstable to the formation of mass clumps that sink to the center and merge. This is an alternative channel for the formation of classical bulges. This chapter summarizes big-picture successes and unsolved problems in the formation of bulges and ellipticals and their coevolution (or not) with supermassive black holes. I present an observer's perspective on simulations of cold dark matter galaxy formation including baryonic physics. Our picture of the quenching of star formation is becoming general and secure at redshifts z < 1. I conclude with a list of major uncertainties and problems. The biggest challenge is to produce realistic bulges + ellipticals and realistic discs that overlap over a factor of > 1000 in mass but that differ from each other as we observe over that whole range. A related difficulty is how hierarchical clustering makes so many giant, bulgeless galaxies in field but not cluster environments. I present arguments that we rely too much on star-formation feedback and AGN feedback to solve these challenges.

  7. Characterization of the transcriptome of Achromobacter sp. HZ01 with the outstanding hydrocarbon-degrading ability.

    PubMed

    Hong, Yue-Hui; Deng, Mao-Cheng; Xu, Xiao-Ming; Wu, Chou-Fei; Xiao, Xi; Zhu, Qing; Sun, Xian-Xian; Zhou, Qian-Zhi; Peng, Juan; Yuan, Jian-Ping; Wang, Jiang-Hai

    2016-06-15

    Microbial remediation has become one of the most important strategies for eliminating petroleum pollutants. Revealing the transcript maps of microorganisms with the hydrocarbon-degrading ability contributes to enhance the degradation of hydrocarbons and further improve the effectiveness of bioremediation. In this study, we characterized the transcriptome of hydrocarbon-degrading Achromobacter sp. HZ01 after petroleum treatment for 16h. A total of 38,706,280 and 38,954,413 clean reads were obtained by RNA-seq for the petroleum-treated group and control, respectively. By an effective de novo assembly, 3597 unigenes were obtained, including 3485 annotated transcripts. Petroleum treatment had significantly influenced the transcriptional profile of strain HZ01, involving 742 differentially expressed genes. A part of genes were activated to exert specific physiological functions, whereas more genes were down-regulated including specific genes related to cell motility, genes associated with glycometabolism, and genes coding for ribosomal proteins. Identification of genes related to petroleum degradation revealed that the fatty acid metabolic pathway and a part of monooxygenases and dehydrogenases were activated, whereas the TCA cycle was inactive. Additionally, terminal oxidation might be a major aerobic pathway for the degradation of n-alkanes in strain HZ01. The newly obtained data contribute to better understand the gene expression profiles of hydrocarbon-degrading microorganisms after petroleum treatment, to further investigate the genetic characteristics of strain HZ01 and other related species and to develop cost-effective and eco-friendly strategies for remediation of crude oil-polluted environments.

  8. Margaret Howell: An Outstanding Teacher of English in the Workplace. Occasional Paper Number 14.

    ERIC Educational Resources Information Center

    Wales, M. L.

    This report highlights the career and accomplishments of Margaret Howell, an English teacher in Australia who was instrumental in the development of English language learning for non-native speakers in the workplace. Material used was gathered in 1986, 1989, and 1992 interviews before her death of cancer in 1992. A chronological account of her…

  9. Response theory for non-equilibrium systems: theory and applications (Outstanding Young Scientist Lecture)

    NASA Astrophysics Data System (ADS)

    Lucarini, Valerio

    2010-05-01

    We consider the general response theory recently proposed by Ruelle for describing the impact of small perturbations to the non-equilibrium steady states resulting from Axiom A dynamical systems. We show that the causality of the response functions entails the possibility of writing a set of Kramers-Kronig (K-K) relations for the corresponding susceptibilities at all orders of nonlinearity, and specific results are provided for the case of arbitrary order harmonic response. These results shed light on the very general impact of considering the principle of causality for testing self-consistency: the described dispersion relations constitute unavoidable benchmarks that any experimental and model generated dataset must obey. These results, taking into account the chaotic hypothesis by Gallavotti and Cohen, might be relevant in several fields, including climate research. In particular, whereas the fluctuation-dissipation theorem does not work for non-equilibrium systems, because of the non-equivalence between internal and external fluctuations, K-K relations might be robust tools for the definition of a self-consistent theory of climate change. Along these lines, we present here the first evidence of the validity of these integral relations for the linear and the second harmonic response for the perturbed Lorenz 63 system, by showing that numerical simulations agree up to high degree of accuracy with the theoretical predictions. The numerical results confirm the conceptual validity of the nonlinear response theory, suggest that the theory can be extended for more general non equilibrium steady state systems, and shed new light on the applicability of very general tools, based only upon the principle of causality, for diagnosing the behavior of perturbed chaotic systems and reconstructing their output signals.

  10. New Perspectives on How to Discover Drugs from Herbal Medicines: CAM's Outstanding Contribution to Modern Therapeutics.

    PubMed

    Pan, Si-Yuan; Zhou, Shu-Feng; Gao, Si-Hua; Yu, Zhi-Ling; Zhang, Shuo-Feng; Tang, Min-Ke; Sun, Jian-Ning; Ma, Dik-Lung; Han, Yi-Fan; Fong, Wang-Fun; Ko, Kam-Ming

    2013-01-01

    With tens of thousands of plant species on earth, we are endowed with an enormous wealth of medicinal remedies from Mother Nature. Natural products and their derivatives represent more than 50% of all the drugs in modern therapeutics. Because of the low success rate and huge capital investment need, the research and development of conventional drugs are very costly and difficult. Over the past few decades, researchers have focused on drug discovery from herbal medicines or botanical sources, an important group of complementary and alternative medicine (CAM) therapy. With a long history of herbal usage for the clinical management of a variety of diseases in indigenous cultures, the success rate of developing a new drug from herbal medicinal preparations should, in theory, be higher than that from chemical synthesis. While the endeavor for drug discovery from herbal medicines is "experience driven," the search for a therapeutically useful synthetic drug, like "looking for a needle in a haystack," is a daunting task. In this paper, we first illustrated various approaches of drug discovery from herbal medicines. Typical examples of successful drug discovery from botanical sources were given. In addition, problems in drug discovery from herbal medicines were described and possible solutions were proposed. The prospect of drug discovery from herbal medicines in the postgenomic era was made with the provision of future directions in this area of drug development.

  11. Partners in Process: How Museum Educators and Classroom Teachers Can Create Outstanding Results

    ERIC Educational Resources Information Center

    Moisan, Heidi

    2009-01-01

    Collaborative processes by nature are not neat and tidy; and if mismanaged, they can lead to chaos rather than creative productivity. However, when a museum and a group of teachers establish a respectful peer community that maximizes all the members talents, truly impactful teaching and learning result. This article analyzes the "Great…

  12. The Art of Learning: A Guide to Outstanding North Carolina Arts in Education Programs.

    ERIC Educational Resources Information Center

    Herman, Miriam L.

    The Arts in Education programs delineated in this guide complement the rigorous arts curriculum taught by arts specialists in North Carolina schools and enable students to experience the joy of the creative process while reinforcing learning in other curricula: language arts, mathematics, social studies, science, and physical education. Programs…

  13. 31 CFR 342.3 - Extended terms and yields for outstanding notes.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... extension heretofore or herein granted. The following table describes the previous and final maturities of.... mos. Life of notes—yrs. May 1967-Oct. 1970 5 6 30 Issue dates—1st day of Final maturity dates—1st day... notes that entered into an extended maturity period, as shown below: Issue dates—1st day of—...

  14. 31 CFR 332.8 - Extended terms and yield for outstanding bonds.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... advantage of any extensions heretofore or herein granted. (2) Two extensions. All Series H bonds may be... reaching final maturity. Final maturities are shown below: Issue dates—1st day of Life of bonds yrs. mos... occurring on or after May 1, 1981, through the end of such periods. For bonds that entered extensions,...

  15. 31 CFR 316.8 - Extended terms and yields for outstanding bonds.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... is required to take advantage of any extensions heretofore or herein granted. Series E bonds cease to... dates—1st day of Life of bonds yrs. Final maturity dates—1st day of May 1941-Apr. 1952 40 May 1981-Apr..., through November 1, 1965, will receive an additional extension of maturity ranging from 4 months to...

  16. Final Report: Approaches to Some of the Outstanding Problems of Heterogeneous Compactive Deformation of Geomaterials

    SciTech Connect

    J. W. Rudnicki

    2013-01-02

    Evidence from laboratory experiments and field observations on porous rocks (and other porous materials) has indicated that compaction does not necessarily occur homogeneously, but, instead, is localized in narrow planar zones that are perpendicular to the maximum compressive stress. Because the permeability of these zones is reduced by several orders of magnitude, they present barriers to fluid flow across them. Consequently, their formation in reservoirs or aquifers can adversely affect attempts to inject or withdraw fluids, such as CO2. Because the zones are narrow, they will be difficult to detect from the surface and, as a result, it is important to understand the conditions for their formation and extension.

  17. Outstanding mechanical properties of monolayer MoS2 and its application in elastic energy storage.

    PubMed

    Peng, Qing; De, Suvranu

    2013-11-28

    The structural and mechanical properties of graphene-like honeycomb monolayer structures of MoS2 (g-MoS2) under various large strains are investigated using density functional theory (DFT). g-MoS2 is mechanically stable and can sustain extra large strains: the ultimate strains are 0.24, 0.37, and 0.26 for armchair, zigzag, and biaxial deformation, respectively. The in-plane stiffness is as high as 120 N m(-1) (184 GPa equivalently). The third, fourth, and fifth order elastic constants are indispensable for accurate modeling of the mechanical properties under strains larger than 0.04, 0.07, and 0.13 respectively. The second order elastic constants, including in-plane stiffness, are predicted to monotonically increase with pressure while the Poisson ratio monotonically decreases with increasing pressure. With the prominent mechanical properties including large ultimate strains and in-plane stiffness, g-MoS2 is a promising candidate of elastic energy storage for clean energy. It possesses a theoretical energy storage capacity as high as 8.8 MJ L(-1) and 1.7 MJ kg(-1), or 476 W h kg(-1), larger than a Li-ion battery and is environmentally friendly.

  18. EPA Honors Outstanding Environmental Educators: 2015 Applications Sought, 2014 Central Washington Teacher Recognized

    EPA Pesticide Factsheets

    Seattle, WA -- The U.S. Environmental Protection Agency (EPA) and the White House Council on Environmental Quality (CEQ) want to honor, support and encourage educators who incorporate environmental education in their classrooms and teaching methods. Applic

  19. Paper-based silver-nanowire electronic circuits with outstanding electrical conductivity and extreme bending stability.

    PubMed

    Huang, Gui-Wen; Xiao, Hong-Mei; Fu, Shao-Yun

    2014-08-07

    Here a facile, green and efficient printing-filtration-press (PFP) technique is reported for room-temperature (RT) mass-production of low-cost, environmentally friendly, high performance paper-based electronic circuits. The as-prepared silver nanowires (Ag-NWs) are uniformly deposited at RT on a pre-printed paper substrate to form high quality circuits via vacuum filtration and pressing. The PFP circuit exhibits more excellent electrical property and bending stability compared with other flexible circuits made by existing techniques. Furthermore, practical applications of the PFP circuits are demonstrated.

  20. Paper-based silver-nanowire electronic circuits with outstanding electrical conductivity and extreme bending stability

    NASA Astrophysics Data System (ADS)

    Huang, Gui-Wen; Xiao, Hong-Mei; Fu, Shao-Yun

    2014-07-01

    Here a facile, green and efficient printing-filtration-press (PFP) technique is reported for room-temperature (RT) mass-production of low-cost, environmentally friendly, high performance paper-based electronic circuits. The as-prepared silver nanowires (Ag-NWs) are uniformly deposited at RT on a pre-printed paper substrate to form high quality circuits via vacuum filtration and pressing. The PFP circuit exhibits more excellent electrical property and bending stability compared with other flexible circuits made by existing techniques. Furthermore, practical applications of the PFP circuits are demonstrated.Here a facile, green and efficient printing-filtration-press (PFP) technique is reported for room-temperature (RT) mass-production of low-cost, environmentally friendly, high performance paper-based electronic circuits. The as-prepared silver nanowires (Ag-NWs) are uniformly deposited at RT on a pre-printed paper substrate to form high quality circuits via vacuum filtration and pressing. The PFP circuit exhibits more excellent electrical property and bending stability compared with other flexible circuits made by existing techniques. Furthermore, practical applications of the PFP circuits are demonstrated. Electronic supplementary information (ESI) available: Video of rolling tests; video of the PFP circuit used as flexible cable in a cell phone; video of the application of the circuit as a RFID tag; a detailed method for synthesizing silver nanowires; details of the PFP technique; folding tests for the circuits; air humidity test for the circuit. See DOI: 10.1039/c4nr00846d

  1. [Volodymyr Oleksandrovych Bielitser--a gifted scientist and outstanding biochemist, a founder of the scientific school].

    PubMed

    2006-01-01

    Professor V. O. Belitser, Doctor of Science (biology), (30.09.1906, Ryazan, RF-04.03.1988 Kyiv, Ukraine), Member of the National Academy of Sciences of Ukraine, graduated from the physico-mathematical faculty of the Moscow University in speciality "physico-chemical biology". In 1934-1943 he worked at the All-Union Institute of Experimental Medicine (Moscow) where he was engaged in research of the relation between the respiratory system and glycolytic reactions in the animal tissues. V. O. Belitser established the effect of creatin on the muscular respiration on the role of creative phosphate in this process. He was the first to demonstrate that the anaerobic phosphorylation is bound to respiration. He investigated stechiometric relations between the joint phosphate binding and oxygen absorption and estimated thermodynamic importance of this process, he showed that the energy of electron transfer from the substrate to oxygen is a source of formation of three ATP molecules per one atom of absorbed oxygen. From 1944 to 1988 V. O. Belitser worked at the Institute of Biochemistry of the Academy of Sciences of the Ukr.SSR (Kyiv), where he headed the Laboratory of Enzymes (then proteins), and from 1966 he headed the Department of Protein Structure and Function; for a certain period (1969-1972) he headed the Institute as its director. Investigations of properties of native and denaturated proteins jointly with K. I. Kotkova led to the creation of blood substitute from blood serum proteins of cattle--BK-8. The school of V. O. Belitser is known by studying the molecular mechanism of one of the basic reactions of blood coagulation--fibrinogen transformation to fibrin, by finding out the organization and function of fibrinogen and fibrin. It was proved experimentally that the specific polymerization centres significance for the fibrin lattice formation are of essential significance for the fibrin lattice formation, that fibrinogen to fibrin transformation occurs in two stages--enzymatic and polymerizational ones. V. O. Belitser proposed the mechanism of fibrinogen transformation to fibrin, as soon as he had substantiated the kinetic theory of this reaction; domain structure of fibrinogen has been investigated. Such diagnostic tests as the methods of definition of the products of fibrinogen and fibrin splitting in urine (for differential diagnosis of cardiovascular diseases) were developed and put into medical practice under his guidance. V. O. Belitser and members of his school have published above 300 scientific works, prepared 5 doctors and 25 candidates of science. The selfless work of the scientists was honoured with high state awards--the Orders of Lenin, the Order of the Labour Red Banner, the Order of Oktober Revolution, that of Friendship of Peoples and with numerous medals.

  2. [Outstanding problems of normal and pathological morphology of the diffuse endocrine system].

    PubMed

    Iaglov, V V; Iaglova, N V

    2011-01-01

    The diffuse endocrine system (DES)--a mosaic-cellular endoepithelial gland--is the biggest part of the human endocrine system. Scientists used to consider cells of DES as neuroectodermal. According to modem data cells of DES are different cytogenetic types because they develop from the different embryonic blastophyllum. So that any hormone-active tumors originated from DES of the digestive, respiratory and urogenital system shouldn't be considered as neuroendocrinal tumors. The basic problems of DES morphology and pathology are the creation of scientifically substantiated histogenetic classification of DES tumors.

  3. Using Biographies of Outstanding Women in Bioengineering to Dispel Biology Teachers' Misperceptions of Engineers

    ERIC Educational Resources Information Center

    Hoh, Yin Kiong

    2009-01-01

    The perception that engineers and scientists are intelligent Caucasian men who are socially inept and absent-minded people is prevalent among students of all levels, from elementary school to college. While the media may, by chance or choice, promote this image, the reality is that most engineers are men. These stereotypical images of engineers…

  4. 11 CFR 9008.10 - Documentation of disbursements; net outstanding convention expenses.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ..., ledgers, fundraising solicitation material, accounting systems documentation, and any related material... section. The Commission may request further information with respect to statements filed pursuant to 11... information—(1) Categories of computerized information to be provided. If the convention committee...

  5. 36 CFR 292.66 - Operating plan requirements-outstanding mineral rights.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... products, insecticides, pesticides, and herbicides that will be used during the mineral operation and the...-site and off-site damage to natural resources resulting from mineral operations. The plan must:...

  6. 36 CFR 292.66 - Operating plan requirements-outstanding mineral rights.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... products, insecticides, pesticides, and herbicides that will be used during the mineral operation and the...-site and off-site damage to natural resources resulting from mineral operations. The plan must:...

  7. 36 CFR 292.66 - Operating plan requirements-outstanding mineral rights.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... products, insecticides, pesticides, and herbicides that will be used during the mineral operation and the...-site and off-site damage to natural resources resulting from mineral operations. The plan must:...

  8. Low-cost capacitor voltage inverter for outstanding performance in piezoelectric energy harvesting.

    PubMed

    Lallart, Mickaël; Garbuio, Lauric; Richard, Claude; Guyomar, Daniel

    2010-01-01

    The purpose of this paper is to propose a new scheme for piezoelectric energy harvesting optimization. The proposed enhancement relies on a new topology for inverting the voltage across a single capacitor with reduced losses. The increase of the inversion quality allows a much more effective energy harvesting process using the so-called synchronized switch harvesting on inductor (SSHI) nonlinear technique. It is shown that the proposed architecture, based on a 2-step inversion, increases the harvested power by a theoretical factor up to square root of 2 (i.e., 40% gain) compared with classical SSHI, allowing an increase of the harvested power by a factor greater than 1000% compared with the standard energy harvesting technique for realistic values of inversion components. The proposed circuit, using only 4 digital switches and an intermediate capacitor, is also ultra-low power, because the inversion circuit does not require any external energy and the command signals are very simple.

  9. EPA Recognizes Outstanding Food Recovery Challenge and WasteWise Program Participants

    EPA Pesticide Factsheets

    WASHINGTON - Today, the U.S. Environmental Protection Agency (EPA) recognizes the accomplishments of organizations and businesses participating in EPA's Food Recovery Challenge and WasteWise program for reducing their climate footprint, improving efficienc

  10. Silicon nitride: A ceramic material with outstanding resistance to thermal shock and corrosion

    NASA Technical Reports Server (NTRS)

    Huebner, K. H.; Saure, F.

    1983-01-01

    The known physical, mechanical and chemical properties of reaction-sintered silicon nitride are summarized. This material deserves interest especially because of its unusually good resistance to thermal shock and corrosion at high temperatures. Two types are distinguished: reaction-sintered (porous) and hot-pressed (dense) Si3N4. Only the reaction-sintered material which is being produced today in large scale as crucibles, pipes, nozzles and tiles is considered.

  11. Dynamics of the Venus upper atmosphere: Outstanding problems and new constraints expected from Venus Express

    NASA Astrophysics Data System (ADS)

    Bougher, S. W.; Rafkin, S.; Drossart, P.

    2006-11-01

    A consistent picture of the dynamics of the Venus upper atmosphere from ˜90 to 200 km has begun to emerge [e.g., Bougher, S.W., Alexander, M.J., Mayr, H.G., 1997. Upper Atmosphere Dynamics: Global Circulation and Gravity Waves. Venus II, CH. 2.4. University of Arizona Press, Tucson, pp. 259-292; Lellouch, E., Clancy, T., Crisp, D., Kliore, A., Titov, D., Bougher, S.W., 1997. Monitoring of Mesospheric Structure and Dynamics. Venus II, CH. 3.1. University of Arizona Press, Tucson, pp. 295-324]. The large-scale circulation of the Venus upper atmosphere (upper mesosphere and thermosphere) can be decomposed into two distinct flow patterns: (1) a relatively stable subsolar-to-antisolar (SS-AS) circulation cell driven by solar heating, and (2) a highly variable retrograde superrotating zonal (RSZ) flow. Wave-like perturbations have also been observed. However, the processes responsible for maintaining (and driving variations in) these SS-AS and RSZ winds are not well understood. Variations in winds are thought to result from gravity wave breaking and subsequent momentum and energy deposition in the upper atmosphere [Alexander, M.J., 1992. A mechanism for the Venus thermospheric superrotation. Geophys. Res. Lett. 19, 2207-2210; Zhang, S., Bougher, S.W., Alexander, M.J., 1996. The impact of gravity waves on the Venus thermosphere and O2 IR nightglow. J. Geophys. Res. 101, 23195-23205]. However, existing data sets are limited in their spatial and temporal coverage, thereby restricting our understanding of these changing circulation patterns. One of the major goals of the Venus Express (VEX) mission is focused upon increasing our understanding of the circulation and dynamical processes of the Venus atmosphere up to the exobase [Titov, D.V., Lellouch, E., Taylor, F.W., 2001. Venus Express: Response to ESA's call for ideas for the re-use of the Mars Express platform. Proposal to European Space Agency, 1-74]. Several VEX instruments are slated to obtain remote measurements (2006-2008) that will complement those obtained earlier by the Pioneer Venus Orbiter (PVO) between 1978 and 1992. These VEX measurements will provide a more comprehensive investigation of the Venus upper atmosphere (90-200 km) structure and dynamics over another period in the solar cycle and for variable lower atmosphere conditions. An expanded climatology of Venus upper atmosphere structure and wind components will be developed. In addition, gravity wave parameters above the cloud tops will be measured (or inferred), and used to constrain gravity wave breaking models. In this manner, the gravity wave breaking mechanism (thought to regulate highly variable RSZ winds) can be tested using Venus general circulation models (GCMs).

  12. SPS Outstanding Student Award for Undergraduate Research Talk: Lifetime Measurements and Deformation in 79Sr

    NASA Astrophysics Data System (ADS)

    Ryu, Yun Kyoung; Kaye, Robert; Arora, S. R.; Tabor, S. L.; Doring, J.; Sun, Y.; Baldwin, T. D.; Campbell, D. B.; Chandler, C.; Cooper, M. W.; Gerbick, S. M.; Wiedeking, M.; Hoffman, C. R.; Pavan, J.; Grubor-Urosevic, O.; Riley, L. A.

    2008-04-01

    High-spin states in ^79Sr were produced following the ^54Fe(^28Si, 2pn) fusion-evaporation reaction using a beam kinetic energy of 90 MeV at the Florida State University (FSU) Tandem-Linac particle accelerator facility, and the resulting de-exciting γ rays were detected with the FSU array of 10 Compton-suppressed high-purity Ge detectors comprised of three Clover detectors and seven single-crystal detectors. The synthesized nuclei were stopped completely in the target, resulting in Doppler-shifted γ-ray line shapes that could be analyzed using the Doppler-shift attenuation method. The experimental line shapes were acquired at detection angles of 35 and 145 , and the resulting Doppler-shifted peaks were analyzed to extract the lifetime of their parent states. In all, 23 lifetimes were measured in three separate band structures using this method, and then used to infer transition quadrupole moments (Qt) and quadrupole deformations (β2) using the rotational model. The resulting Qt values indicated a high degree of collectivity and deformation in all three observed sequences of excited states (bands) with only a modest decline in collectivity with increasing angular momentum. The results show good qualitative agreement with the predictions of both cranked Woods-Saxon (CWS) and projected shell model (PSM) calculations. In addition, the pattern of excited energy states and their de-exciting gamma-ray transitions (level scheme) was re-examined and compared to the most recent study of ^79Sr using γ-γ coincidence measurements, intensity measurements, and directional correlation of oriented nuclei (DCO) ratios in addition to the lifetime measurements. Overall, the level scheme was verified, with the exception of the re-arrangement of one transition. The band based on the intrinsic d5/2 single-particle orbital from the shell model, was found to have the largest average deformation (β2,ave = 0.41) among the three observed bands, in agreement with the CWS and PSM theoretical predictions

  13. Against All Odds: Outstanding Reading Performance among Chilean Youth in Vulnerable Conditions

    ERIC Educational Resources Information Center

    Vera, Gabriela Gomez; Valenzuela, Juan Pablo; Sotomayor, Carmen

    2015-01-01

    International studies show that the impact of socioeconomic status (SES) on learning has increased in a number of countries and that poverty is a risk factor that puts children's academic performance at risk. However, there are students who, despite living in impoverished conditions, achieve solid academic performance. How they do so is a question…

  14. New Perspectives on How to Discover Drugs from Herbal Medicines: CAM's Outstanding Contribution to Modern Therapeutics

    PubMed Central

    Pan, Si-Yuan; Zhou, Shu-Feng; Gao, Si-Hua; Yu, Zhi-Ling; Zhang, Shuo-Feng; Tang, Min-Ke; Sun, Jian-Ning; Han, Yi-Fan; Fong, Wang-Fun; Ko, Kam-Ming

    2013-01-01

    With tens of thousands of plant species on earth, we are endowed with an enormous wealth of medicinal remedies from Mother Nature. Natural products and their derivatives represent more than 50% of all the drugs in modern therapeutics. Because of the low success rate and huge capital investment need, the research and development of conventional drugs are very costly and difficult. Over the past few decades, researchers have focused on drug discovery from herbal medicines or botanical sources, an important group of complementary and alternative medicine (CAM) therapy. With a long history of herbal usage for the clinical management of a variety of diseases in indigenous cultures, the success rate of developing a new drug from herbal medicinal preparations should, in theory, be higher than that from chemical synthesis. While the endeavor for drug discovery from herbal medicines is “experience driven,” the search for a therapeutically useful synthetic drug, like “looking for a needle in a haystack,” is a daunting task. In this paper, we first illustrated various approaches of drug discovery from herbal medicines. Typical examples of successful drug discovery from botanical sources were given. In addition, problems in drug discovery from herbal medicines were described and possible solutions were proposed. The prospect of drug discovery from herbal medicines in the postgenomic era was made with the provision of future directions in this area of drug development. PMID:23634172

  15. Acanthamoeba polyphaga mimivirus and other giant viruses: an open field to outstanding discoveries

    PubMed Central

    2014-01-01

    In 2003, Acanthamoeba polyphaga mimivirus (APMV) was first described and began to impact researchers around the world, due to its structural and genetic complexity. This virus founded the family Mimiviridae. In recent years, several new giant viruses have been isolated from different environments and specimens. Giant virus research is in its initial phase and information that may arise in the coming years may change current conceptions of life, diversity and evolution. Thus, this review aims to condense the studies conducted so far about the features and peculiarities of APMV, from its discovery to its clinical relevance. PMID:24976356

  16. Correlated variations of UV and radio emissions during an outstanding Jovian auroral event

    NASA Technical Reports Server (NTRS)

    Prange, R.; Zarka, P.; Ballester, G. E.; Livengood, T. A.; Denis, L.; Carr, T.; Reyes, F.; Bame, S. J.; Moos, H. W.

    1993-01-01

    An exceptional Jovian aurora was detected in the FUV on December 21, 1990, by means of Vilspa and Goddard Space Flight Center (GFSC) International Ultraviolet Explorer (IUE) observations. This event included intensification by a factor of three between December 20 and 21, leading to the brightest aurora identified in the IUE data analyzed, and, in the north, to a shift of the emission peak towards larger longitudes. The Jovian radio emission simultaneously recorded at decameter wavelengths in Nancay also exhibits significant changes, from a weak and short-duration emission on December 20 to a very intense one, lasting several hours, on December 21. Confirmation of this intense radio event is also found in the observations at the University of Florida on December 21. The emissions are identified as right-handed Io-independent 'A' (or 'non Io-A') components from the northern hemisphere. The radio source region deduced from the Nancay observations lies, for both days, close to the UV peak emission, exhibiting in particular a similar shift of the source region toward larger longitudes from one day to the next. A significant broadening of the radio source was also observed and it is shown that on both days, the extent of the radio source closely followed the longitude range for which the UV brightness exceeds a given threshold. The correlated variations, both in intensity and longitude, strongly suggest that a common cause triggered the variation of the UV and radio emissions during this exceptional event. On one hand, the variation of the UV aurora could possibly be interpreted according to the Prange and Elkhamsi (1991) model of diffuse multicomponent auroral precipitation (electron and ion): it would arise from an increase in the precipitation rate of ions together with an inward shift of their precipitation locus from L approximately equal 10 to L approximately equal 6. On the other hand, the analysis of Ulysses observations in the upstream solar wind suggests that a significant disturbance in the solar wind, involving the generation of an interplanetary shock and the presence of a CME have interacted with the Jovian magnetosphere at about the time of the auroral event. Both arguments suggest that we may have observed for the first time a magnetic storm-type interaction in an outer planet magnetosphere, affecting simultaneously several auroral processes. Conversely, the observed relationship between the level of UV auroral activity and the detection of decameter emission (DAM), if it were a typical feature, might argue in favour of a more direct and permanent association between the auroral processes leading to UV and radio aurorae, possibly related to 'discrete-arc'-like activity and electron precipitation.

  17. Outstanding Science in the Neptune System from an Aerocaptured NASA "Vision Mission"

    NASA Technical Reports Server (NTRS)

    Spilker, T. R.; Spilker, L. J.; Ingersoll, A. P.

    2005-01-01

    In 2003 NASA released its Vision Mission Studies NRA (NRA-03-OSS-01-VM) soliciting proposals to study any one of 17 Vision Missions described in the NRA. The authors, along with a team of scientists and engineers, sucessfully proposed a study of the Neptune Orbiter With Probes (NOP) option, a mission that performs Cassini-level science in the Neptune system without fission-based electric power or propulsion. The Study Team includes a Science Team composed of experienced planetary scientists, many of whom helped draft the Neptune discussions in the 2003 Solar System Exploration Decadal Survey (SSEDS), and an Implementation Team with experienced engineers and technologists from multiple NASA Centers and JPL.

  18. Numerical Modelling of Subduction Plate Interface, Technical Advances for Outstanding Questions

    NASA Astrophysics Data System (ADS)

    Le Pourhiet, L.; Ruh, J.; Pranger, C. C.; Zheng, L.; van Dinther, Y.; May, D.; Gerya, T.; Burov, E. B.

    2015-12-01

    The subduction zone interface is the place of the largest earthquakes on earth. Compared to the size of a subduction zone itself, it constitutes a very thin zone (few kilometers) with effective rheological behaviour that varies as a function of pressure, temperature, loading, nature of the material locally embedded within the interface as well as the amount of water, melts and CO2. Capturing the behaviour of this interface and its evolution in time is crucial, yet modelling it is not an easy task. In the last decade, thermo-mechanical models of subduction zone have flourished in the literature. They mostly focused on the long-term dynamics of the subduction; e.g. flat subduction, slab detachment or exhumation. The models were validated models against PTt path of exhumed material as well as topography. The models that could reproduce the data all included a mechanically weak subduction channel made of extremely weak and non cohesive material. While this subduction channel model is very convenient at large scale and might apply to some real subduction zones, it does not capture the many geological field evidences that point out the exhumation of very large slice of almost pristine oceanic crust along localised shear zone. Moreover, modelling of sismological and geodetic data using short term tectonic modelling approach also point out that large localised patches rupture within the subduction interface, which is in accordance with geological data but not with large-scale long-term tectonic models. I will present how high resolution models permit to produce slicing at the subduction interface and give clues on how the plate coupling and effective location of the plate interface vary over a few millions of year time scale. I will then discuss the implication of these new high-resolution long-term models of subduction zone on earthquake generation, report progress in the development of self-consistent thermomechanical codes which can handle large strain, high resolution and fluids pathways together with adaptative time stepping schemes permitting to switch from static long term-tectonic approach to seismic cycle modelling within the same frame work and discuss how the results of these forward models can be used to better assess coupling at the subduction zone interface from geodetic, seismologic and geologic record.

  19. Detection and quantification limits: basic concepts, international harmonization, and outstanding ("low-level") issues.

    PubMed

    Currie, L A

    2004-01-01

    A brief review is given of concepts, basic definitions, and terminology for metrological detection and quantification capabilities, representing harmonized recommendations and norms of the International Union of Pure and Applied Chemistry (IUPAC) and the International Organization for Standardization (ISO), respectively. Treatment of the (low-level) blank and variance function are discussed in some detail, together with special problems arising with detection decisions and the reporting of low-level data. Key references to the international documents follow, as well as specialized references addressing very low-level counting data, skewed environmental blank distributions, and multiple and multivariate detection decisions.

  20. 31 CFR 342.3 - Extended terms and yields for outstanding notes.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... semiannually. (c) Market-based variable investment yield. In order to be eligible for the market-based variable... accrual date occurring on or after November 1, 1982. The market-based variable investment yield shall be... which entered an extended maturity period prior to May 1, 1989, the market-based variable...

  1. 31 CFR 316.8 - Extended terms and yields for outstanding bonds.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... was increased by one-half of one percent per annum, compounded semiannually. (d) Market-based variable investment yield. In order to be eligible for the market-based variable investment yield, Series E savings... occurring on or after November 1, 1982. The market-based variable investment yield shall be determined...

  2. 31 CFR 342.3 - Extended terms and yields for outstanding notes.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... semiannually. (c) Market-based variable investment yield. In order to be eligible for the market-based variable... accrual date occurring on or after November 1, 1982. The market-based variable investment yield shall be... which entered an extended maturity period prior to May 1, 1989, the market-based variable...

  3. Massachusetts Maritime Academy Wastewater Treatment Plant Chief Operator Recognized for Outstanding Service

    EPA Pesticide Factsheets

    A resident of Fairhaven, Daniel Freitas, the Chief Operator of the Massachusetts Maritime Academy Wastewater Treatment Plant, was recently honored with a 2015 Regional WWTP Operator of the Year Excellence Award by the US EPA's New England regional office

  4. Outstanding Antibiofilm Features of Quanta-CuO Film on Glass Surface.

    PubMed

    Tripathy, Nirmalya; Ahmad, Rafiq; Bang, Seung Hyuck; Khang, Gilson; Min, Jiho; Hahn, Yoon-Bong

    2016-06-22

    Intelligently designed surface nanoarchitecture provides defined control over the behavior of cells and biomolecules at the solid-liquid interface. In this study, CuO quantum dots (quanta-CuO; ∼3-5 nm) were synthesized by a simple, low-temperature solution process and further formulated as paint to construct quanta-CuO thin film on glass. Surface morphological characterizations of the as-coated glass surface reveal a uniform film thickness (∼120 ± 10 nm) with homogeneous distribution of quanta-CuO. The antibiofilm assay showed a very high contact bacteria-killing capacity of as-coated quanta-CuO glass surfaces toward Staphylococcus aureus and Escherichia coli. This efficient antibacterial/antibiofilm activity was ascribed to the intracellular reactive oxygen species (ROS) generated by the quanta-CuO attached to the bacterial cells, which leads to an oxidative assault and finally results in bacterial cell death. Although there is a significant debate regarding the CuO nanostructure's antibacterial mode of action, we propose both contact killing and/or copper ion release killing mechanisms for the antibiofilm activity of quanta-CuO paint. Moreover, synergism of quanta-CuO with conventional antibiotics was also found to further enhance the antibacterial efficacy of commonly used antibiotics. Collectively, this state-of-the-art design of quanta-CuO coated glass can be envisioned as promising candidates for various biomedical and environmental device coatings.

  5. Promising porous carbon derived from celtuce leaves with outstanding supercapacitance and CO₂ capture performance.

    PubMed

    Wang, Rutao; Wang, Peiyu; Yan, Xingbin; Lang, Junwei; Peng, Chao; Xue, Qunji

    2012-11-01

    Business costs and energy/environmental concerns have increased interested in biomass materials for production of activated carbons, especially as electrode materials for supercapacitors or as solid-state adsorbents in CO₂ adsorption area. In this paper, waste celtuce leaves were used to prepare porous carbon by air-drying, pyrolysis at 600 °C in argon, followed by KOH activation. The as-prepared porous carbon have a very high specific surface area of 3404 m²/g and a large pore volume of 1.88 cm³/g. As an electroactive material, the porous carbon exhibits good capacitive performance in KOH aqueous electrolyte, with the specific capacitances of 421 and 273 F/g in three and two-electrode systems, respectively. As a solid-state adsorbent, the porous carbon has an excellent CO₂ adsorption capacity at ambient pressures of up to 6.04 and 4.36 mmol/g at 0 and 25 °C, respectively. With simple production process, excellent recyclability and regeneration stability, the porous carbon that was derived from celtuce leaves is among the most promising materials for high-performance supercapacitors and CO₂ capture.

  6. A comprehensive checklist of vascular epiphytes of the Atlantic Forest reveals outstanding endemic rates.

    PubMed

    Freitas, Leandro; Salino, Alexandre; Neto, Luiz Menini; Elias Almeida, Thaís; Mortara, Sara Ribeiro; Stehmann, João Renato; Amorim, André Marcio; Guimarães, Elsie Franklin; Coelho, Marcus Nadruz; Zanin, Ana; Forzza, Rafaela Campostrini

    2016-01-01

    Knowledge of the geographic distribution of plants is essential to underpin the understanding of global biodiversity patterns. Vascular epiphytes are important components of diversity and functionality of Neotropical forests but, unlike their terrestrial counterparts, they are under-represented in large-scale diversity and biogeographic analyses. This is the case for the Atlantic Forest - one of the most diverse and threatened biomes worldwide. We provide the first comprehensive species list of Atlantic Forest vascular epiphytes; their endemism patterns and threatened species occurrence have also been analyzed. A list with 2,256 species of (hemi-)epiphytes - distributed in 240 genera and 33 families - is presented based on the updated Brazilian Flora Checklist. This represents more than 15% of the total vascular plant richness in the Atlantic Forest. Moreover, 256 species are included on the Brazilian Red List. More than 93% of the overall richness is concentrated in ten families, with 73% represented by Orchidaceae and Bromeliaceae species alone. A total of 78% of epiphytic species are endemic to the Atlantic Forest, in contrast to overall vascular plant endemism in this biome estimated at 57%. Among the non-endemics, 13% of epiphytic species also occur either in the Amazon or in the Cerrado - the other two largest biomes of Brazil - and only 8% are found in two or more Brazilian biomes. This pattern of endemism, in addition to available dated phylogenies of some genera, indicate the dominance of recent radiations of epiphytic groups in the Atlantic Forest, showing that the majority of divergences dating from the Pliocene onwards are similar to those that were recently reported for other Neotropical plants.

  7. Outstanding efficiency in energy conversion for electric motors constructed by nanocrystalline soft magnetic alloy "NANOMET®" cores

    NASA Astrophysics Data System (ADS)

    Nishiyama, N.; Tanimoto, K.; Makino, A.

    2016-05-01

    Recently updated nanocrystalline soft magnetic Fe-Co-Si-B-P-Cu alloys "NANOMET®" exhibit high saturation magnetic flux density (Bs > 1.8 T), low coercivity (Hc < 10 A/m) and low core loss (W1.7/50 ˜ 0.4 W/kg) even in a ribbon form with a thickness of up to 40 μm. By utilize excellent magnetic softness, several products such as motors or transformers for electrical appliances are now under developing by industry-academia collaboration. In particular, it is found that a brushless DC motor using NANOMET® core exhibited remarkable improvement in energy consumption. The prototype motor with an outer core diameter of 70 mm and a core thickness of 50 mm was constructed using laminated nano-crystallized NANOMET® ribbons. Core-loss for the constructed motor was improved from 1.4 W to 0.4 W only by replacing the non-oriented Si-steel core with NANOMET® one. The overall motor efficiency is evaluated to be 3% improvement. In this work, the relation between processing and resulting magnetic properties will be presented. In addition, feasibility for commercialization will also be discussed.

  8. Development of a global ocean mercury model with a methylation cycle: Outstanding issues

    NASA Astrophysics Data System (ADS)

    Semeniuk, Kirill; Dastoor, Ashu

    2017-02-01

    We present a newly developed global ocean mercury (Hg) transport and biogeochemistry model and use preanthropogenic equilibrium simulations to highlight physical and chemical processes which reveal significant knowledge gaps that need to be addressed. As with previous 3-D ocean Hg model work we use a bulk chemistry scheme based on particulate organic carbon remineralization. We also include an explicit methylation cycle based on available reaction rates. The methylation to demethylation rate ratio based on various field studies is found to be inconsistent with the concentration ratios measured in the Southern Ocean around Antarctica and in the Arctic. There is also model-measurement disagreement in the old waters of the tropical and North Pacific Ocean. The model produces an intermediate water maximum in total Hg in this region reflecting the higher age of water which is absent in observations. The model also underestimates total Hg concentrations in the deepest waters in this region. These disagreements in depth profile shape point to an inadequate representation of scavenging and sedimentation and possibly seabed emission or remobilization of Hg. In addition, the total Hg distribution differences compared to previous model work reflect sensitivity to ocean model transport characteristics and in particular the tracer diffusion. The residence time of Hg in the global ocean and the surface evasion flux of elemental Hg is sensitive to such model aspects. We find a global ocean Hg turnover time against sediment burial to be about 1100 years which is within the range of previous studies.

  9. Backstop: Shuttle Will Fly with Outstanding Waivers; New Oversight Eases Conflicts on Safety

    NASA Technical Reports Server (NTRS)

    Morring, Frank, Jr.

    2005-01-01

    he space shuttle Discovery is carrying some 300 waivers to technical specifications as it enters the home stretch of its planned return to flight next month. There were about 6,000 waivers in place when Columbia crashed. Shuttle managers say they are working to reduce the number of waivers remaining by fixing the problems they highlight, a change prompted by the Columbia Accident Investigation Board. In the wake of the accident, NASA has heeded the CAWS recommendation that waivers be the responsibility of an "independent technical authority" (ITA), rather than the shuttle program itself. To carry out the recommendation of the CAIB-which found an inherent conflict of interest in having the same managers make decisions about cost, schedule and safety-then-Administrator Sean O'Keefe designated the agency's chief engineer as the formal ITA. He is responsible for setting, maintaining and granting waivers across the agency. In mid-January, Fred Gregory, then O'Keefe's deputy and now his acting replacement, launched the ITA within NASA under Chief Engineer Rex Geveden, the former program manager on the Gravity Probe B experiment.

  10. EPA Recognizes the City of Fort Lauderdale, Florida for Outstanding Waste Reduction Efforts

    EPA Pesticide Factsheets

    ATLANTA --- Today, the U.S. Environmental Protection Agency (EPA) recognizes the waste reduction accomplishments of the City of Fort Lauderdale, Fla. along with the other 28 participants in and endorsers of EPA's Waste Wise program and EPA's Food Recovery

  11. Centenary of the death of Elie Metchnikoff: a visionary and an outstanding team leader.

    PubMed

    Cavaillon, Jean-Marc; Legout, Sandra

    2016-10-01

    Elie Metchnikoff passed away on July 15th, 1916. He is considered to be the father of phagocytes, cellular innate immunity, probiotics, and gerontology. In all of these fields, he was a visionary. To achieve such a notability and produce so many masterpieces, Metchnikoff used more than 30 animal species to support his findings, and his pasteurian laboratory published more than 200 papers in the Annales de l'Institut Pasteur. As a wonderful team leader and a great mentor, during his 28 years at Institut Pasteur, he welcomed and supervised more than 100 young trainees. Trained as an embryologist, he contributed to the birth of immunology and to the understanding of physiology and pathology. Indeed, Metchnikoff and his team investigated inflammation in guinea pigs, rats, frogs; studied infectious diseases in monkeys, caimans, geese; investigated aging in parrots, dogs, humans; proposed hypotheses to understand age-associated senility using rabbits and humans; developed germ free tadpoles, flies, chicks; studied the gut flora in bats, horses, birds, humans; and popularized the use of probiotics as a tool to delay the deleterious effects of toxic compounds derived from putrefactive gut bacteria. He was also a philosopher and penned essays on human disharmony and on pessimism and optimism.

  12. Three-Dimensional Assembly of Yttrium Oxide Nanosheets into Luminescent Aerogel Monoliths with Outstanding Adsorption Properties.

    PubMed

    Cheng, Wei; Rechberger, Felix; Niederberger, Markus

    2016-02-23

    The preparation of macroscopic materials from two-dimensional nanostructures represents a great challenge. Restacking and random aggregation to dense structures during processing prevents the preservation of the two-dimensional morphology of the nanobuilding blocks in the final body. Here we present a facile solution route to ultrathin, crystalline Y2O3 nanosheets, which can be assembled into a 3D network by a simple centrifugation-induced gelation method. The wet gels are converted into aerogel monoliths of macroscopic dimensions via supercritical drying. The as-prepared, fully crystalline Y2O3 aerogels show high surface areas of up to 445 m(2)/g and a very low density of 0.15 g/cm(3), which is only 3% of the bulk density of Y2O3. By doping and co-doping the Y2O3 nanosheets with Eu(3+) and Tb(3+), we successfully fabricated luminescent aerogel monoliths with tunable color emissions from red to green under UV excitation. Moreover, the as-prepared gels and aerogels exhibit excellent adsorption capacities for organic dyes in water without losing their structural integrity. For methyl blue we measured an unmatched adsorption capacity of 8080 mg/g. Finally, the deposition of gold nanoparticles on the nanosheets gave access to Y2O3-Au nanocomposite aerogels, proving that this approach may be used for the synthesis of catalytically active materials. The broad range of properties including low density, high porosity, and large surface area in combination with tunable photoluminescence makes these Y2O3 aerogels a truly multifunctional material with potential applications in optoelectronics, wastewater treatment, and catalysis.

  13. Outstanding electrochemical performance of a graphene-modified graphite felt for vanadium redox flow battery application

    NASA Astrophysics Data System (ADS)

    González, Zoraida; Flox, Cristina; Blanco, Clara; Granda, Marcos; Morante, Juan R.; Menéndez, Rosa; Santamaría, Ricardo

    2017-01-01

    The development of more efficient electrode materials is essential to obtain vanadium redox flow batteries (VRFBs) with enhanced energy densities and to make these electrochemical energy storage devices more competitive. A graphene-modified graphite felt synthesized from a raw graphite felt and a graphene oxide water suspension by means of electrophoretic deposition (EPD) is investigated as a suitable electrode material in the positive side of a VRFB cell by means of cyclic voltammetry, impedance spectroscopy and charge/discharge experiments. The remarkably enhanced performance of the resultant hybrid material, in terms of electrochemical activity and kinetic reversibility towards the VO2+/VO2+, and mainly the markedly high energy efficiency of the VRFB cell (c.a. 95.8% at 25 mA cm-2) can be ascribed to the exceptional morphological and chemical characteristics of this tailored material. The 3D-architecture consisting of fibers interconnected by graphene-like sheets positively contributes to the proper development of the vanadium redox reactions and so represents a significant advance in the design of effective electrode materials.

  14. Outstanding memories: the positive and negative effects of nudes on memory.

    PubMed

    Schmidt, Stephen R

    2002-03-01

    A picture of a nude isolated in a series of pictures of clothed models was quite memorable, but when compared with a clothed picture, the nude impaired memory for background picture derails as well as pictures immediately following the nude (anterograde amnesia). Recall of details given picture-gist recall, as well as recognition of person details, were equivalent in the clothed and nude conditions. A clothed picture isolated in a series of nudes did not hurt memory for background information, nor did it produce anterograde amnesia. Apparently, distinctiveness supports good memory for the gist of the nude or clothed pictures. However, distinctiveness is not responsible for the anterograde amnesia and poor memory for background details found with nudes.

  15. Year 7 Accelerated Learning Curriculum 2006-2010: From a Concept to an Outstanding Curriculum

    ERIC Educational Resources Information Center

    Creswell, Ian

    2011-01-01

    The author, Head of Year 7 at Cantell Maths and Computing College in Southampton, describes the development of an innovative approach to Year 7, which is based on the Qualifications and Curriculum Development Agency programme "Personal, Learning and Thinking Skills". He shows how the new approach evolved and continues to develop…

  16. Optoacoustic Imaging and Tomography: Reconstruction Approaches and Outstanding Challenges in Image Performance and Quantification

    PubMed Central

    Lutzweiler, Christian; Razansky, Daniel

    2013-01-01

    This paper comprehensively reviews the emerging topic of optoacoustic imaging from the image reconstruction and quantification perspective. Optoacoustic imaging combines highly attractive features, including rich contrast and high versatility in sensing diverse biological targets, excellent spatial resolution not compromised by light scattering, and relatively low cost of implementation. Yet, living objects present a complex target for optoacoustic imaging due to the presence of a highly heterogeneous tissue background in the form of strong spatial variations of scattering and absorption. Extracting quantified information on the actual distribution of tissue chromophores and other biomarkers constitutes therefore a challenging problem. Image quantification is further compromised by some frequently-used approximated inversion formulae. In this review, the currently available optoacoustic image reconstruction and quantification approaches are assessed, including back-projection and model-based inversion algorithms, sparse signal representation, wavelet-based approaches, methods for reduction of acoustic artifacts as well as multi-spectral methods for visualization of tissue bio-markers. Applicability of the different methodologies is further analyzed in the context of real-life performance in small animal and clinical in-vivo imaging scenarios. PMID:23736854

  17. A comprehensive checklist of vascular epiphytes of the Atlantic Forest reveals outstanding endemic rates

    PubMed Central

    Freitas, Leandro; Salino, Alexandre; Neto, Luiz Menini; Elias Almeida, Thaís; Mortara, Sara Ribeiro; Stehmann, João Renato; Amorim, André Marcio; Guimarães, Elsie Franklin; Coelho, Marcus Nadruz; Zanin, Ana; Forzza, Rafaela Campostrini

    2016-01-01

    Abstract Knowledge of the geographic distribution of plants is essential to underpin the understanding of global biodiversity patterns. Vascular epiphytes are important components of diversity and functionality of Neotropical forests but, unlike their terrestrial counterparts, they are under-represented in large-scale diversity and biogeographic analyses. This is the case for the Atlantic Forest - one of the most diverse and threatened biomes worldwide. We provide the first comprehensive species list of Atlantic Forest vascular epiphytes; their endemism patterns and threatened species occurrence have also been analyzed. A list with 2,256 species of (hemi-)epiphytes - distributed in 240 genera and 33 families - is presented based on the updated Brazilian Flora Checklist. This represents more than 15% of the total vascular plant richness in the Atlantic Forest. Moreover, 256 species are included on the Brazilian Red List. More than 93% of the overall richness is concentrated in ten families, with 73% represented by Orchidaceae and Bromeliaceae species alone. A total of 78% of epiphytic species are endemic to the Atlantic Forest, in contrast to overall vascular plant endemism in this biome estimated at 57%. Among the non-endemics, 13% of epiphytic species also occur either in the Amazon or in the Cerrado - the other two largest biomes of Brazil – and only 8% are found in two or more Brazilian biomes. This pattern of endemism, in addition to available dated phylogenies of some genera, indicate the dominance of recent radiations of epiphytic groups in the Atlantic Forest, showing that the majority of divergences dating from the Pliocene onwards are similar to those that were recently reported for other Neotropical plants. PMID:26884706

  18. Outstanding Women Athletes: Who They Are and How They Influenced Sports in America.

    ERIC Educational Resources Information Center

    Woolum, Janet

    This book highlights the stories of 60 of this century's female athletes who pioneered, participated in, or continue to compete in women's sports. Following forewords by Billie Jean King, Anita DeFrantz, and Deborah Slaner Anderson, the volume contains biography, history, an annotated bibliography, and statistics on women athletes from the late…

  19. Bureau of Indian Affairs Outstanding Programs in Math, Science and Technology, 1995.

    ERIC Educational Resources Information Center

    Bureau of Indian Affairs (Dept. of Interior), Washington, DC. Office of Indian Education Programs.

    This booklet describes the goals and activities of 20 exemplary programs in mathematics, science and technology for students and teachers in schools operated or funded by the Bureau of Indian Affairs. The programs are: "Computer Home Improvement Reading Program," Beclabito Day School (New Mexico); "Cherokee High School Science:…

  20. Development of a universally applicable household food insecurity measurement tool: process, current status, and outstanding issues.

    PubMed

    Swindale, Anne; Bilinsky, Paula

    2006-05-01

    The United States Public Law 480 Title II food aid program is the largest U.S. government program directed at reducing hunger, malnutrition, and food insecurity in the developing world. USAID and Title II implementing partners face challenges in measuring the success of Title II programs in reducing household food insecurity because of the technical difficulty and cost of collecting and analyzing data on traditional food security indicators, such as per capita income and caloric adequacy. The Household Food Insecurity Access Scale (HFIAS) holds promise as an easier and more user-friendly approach for measuring the access component of household food security. To support the consistent and comparable collection of the HFIAS, efforts are under way to develop a guide with a standardized questionnaire and data collection and analysis instructions. A set of domains have been identified that is deemed to capture the universal experience of the access component of household food insecurity across countries and cultures. Based on these domains, a set of questions has been developed with wording that is deemed to be universally appropriate, with minor adaptation to local contexts. These underlying suppositions, based on research in multiple countries, are being verified by potential users of the guide. The key remaining issue relates to the process for creating a categorical indicator of food insecurity status from the HFIAS.

  1. 31 CFR 332.8 - Extended terms and yield for outstanding bonds.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 31 Money and Finance:Treasury 2 2011-07-01 2011-07-01 false Extended terms and yield for.... Final maturity dates—1st day of Jun. 1952-Jan. 1957 29 8 Feb. 1982-Sep. 1986. Feb. 1957-Dec. 1979 30 Feb... periods from November 1, 1982, through October 1, 1986, the investment yield was 7.5 percent per...

  2. Tokamak power exhaust with the snowflake divertor: Present results and outstanding issues

    SciTech Connect

    Soukhanovskii, V. A.; Xu, X.

    2015-09-15

    Here, a snowflake divertor magnetic configuration (Ryutov in Phys Plasmas 14(6):064502, 2007) with the second-order poloidal field null offers a number of possible advantages for tokamak plasma heat and particle exhaust in comparison with the standard poloidal divertor with the first-order null. Results from snowflake divertor experiments are briefly reviewed and future directions for research in this area are outlined.

  3. The screwworm eradication program: From an unlikely dream to an outstanding reality

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The screwworm, Cochliomyia hominivorax (Coquerel) (Diptera: Calliphoridae), was a devastating pest to all warm blooded animals in the United States and the rest of North America. Successful eradication of the screwworm was achieved by using the unique approach called the sterile insect technique. He...

  4. Acanthamoeba polyphaga mimivirus and other giant viruses: an open field to outstanding discoveries.

    PubMed

    Abrahão, Jônatas S; Dornas, Fábio P; Silva, Lorena C F; Almeida, Gabriel M; Boratto, Paulo V M; Colson, Phillipe; La Scola, Bernard; Kroon, Erna G

    2014-06-30

    In 2003, Acanthamoeba polyphaga mimivirus (APMV) was first described and began to impact researchers around the world, due to its structural and genetic complexity. This virus founded the family Mimiviridae. In recent years, several new giant viruses have been isolated from different environments and specimens. Giant virus research is in its initial phase and information that may arise in the coming years may change current conceptions of life, diversity and evolution. Thus, this review aims to condense the studies conducted so far about the features and peculiarities of APMV, from its discovery to its clinical relevance.

  5. EPA Recognizes Governments, Organizations and Businesses for Outstanding Waste Reduction Efforts

    EPA Pesticide Factsheets

    WASHINGTON --- Today, the U.S. Environmental Protection Agency (EPA) recognizes the waste reduction accomplishments of 29 participants in and endorsers of EPA's Waste Wise program and EPA's Food Recovery Challenge. These collaborative initiatives apply sus

  6. Recent Outstanding and Ordinary Books about Mexico, Mexicans, and Mexican-Americans.

    ERIC Educational Resources Information Center

    Schon, Isabel

    1984-01-01

    This bibliographic essay reviews recent books about Mexico written for serious students and/or young adult readers; recent books for children and young adults which reflect authors' misunderstanding of Mexico, Mexicans, and Mexican-Americans; and recent books about Mexico and Mexican-Americans that might appeal to young readers with special…

  7. E-Book Usage and the "Choice" Outstanding Academic Book List: Is There a Correlation?

    ERIC Educational Resources Information Center

    Carter Williams, Karen; Best, Rickey

    2006-01-01

    In this study, the staff of the library at Auburn University at Montgomery analyzed circulation patterns for electronic books in the fields of Political Science, Public Administration and Law to see if favorable "Choice" reviews can be used to predict usage of electronic books. A comparison of the circulations between print and…

  8. Outstanding junior investigator program. [Final technical report, 8/1/92-10/31/97

    SciTech Connect

    Randall, Lisa; Rosenberg, Leslie

    1999-12-18

    Much of the authors work over the past five years has been aimed at bridging the gap between the exactly supersymmetric world of string theories and the world that is actually observed. Her report discusses the following subjects: (1) supersymmetry breaking; related work on the mass hierarchy and the relation between supersymmetry and grand unified theories; distinguishing between supersymmetric models; and the fundamental question of how gauge theories arise from D-branes.

  9. 11 CFR 9008.10 - Documentation of disbursements; net outstanding convention expenses.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... convention; plus (iii) An estimate of necessary winding down costs; less (2) The total of: (i) Cash on hand... after the last day of the convention; plus (ii) An estimate of the amount of convention expenses that... date it was acquired, the method of disposition and the amount received in disposition. The fair...

  10. Sticking to the story: outstanding challenges in gecko-inspired adhesives.

    PubMed

    Niewiarowski, Peter H; Stark, Alyssa Y; Dhinojwala, Ali

    2016-04-01

    The natural clinging ability of geckos has inspired hundreds of studies seeking design principles that could be applied to creating synthetic adhesives with the same performance capabilities as the gecko: adhesives that use no glue, are self-cleaning and reusable, and are insensitive to a wide range of surface chemistries and roughness. Important progress has been made, and the basic mechanics of how 'hairy' adhesives work have been faithfully reproduced, advancing theory in surface science and portending diverse practical applications. However, after 15 years, no synthetic mimic can yet perform as well as a gecko and simultaneously meet of all the criteria listed above. Moreover, processes for the production of inexpensive and scalable products are still not clearly in view. Here, we discuss our perspective on some of the gaps in understanding that still remain; these gaps in our knowledge should stimulate us to turn to deeper study of the way in which free-ranging geckos stick to the variety of surfaces found in their natural environments and to a more complete analysis of the materials composing the gecko toe pads.

  11. NF-κB, the first quarter-century: remarkable progress and outstanding questions

    PubMed Central

    Hayden, Matthew S.; Ghosh, Sankar

    2012-01-01

    The ability to sense and adjust to the environment is crucial to life. For multicellular organisms, the ability to respond to external changes is essential not only for survival but also for normal development and physiology. Although signaling events can directly modify cellular function, typically signaling acts to alter transcriptional responses to generate both transient and sustained changes. Rapid, but transient, changes in gene expression are mediated by inducible transcription factors such as NF-κB. For the past 25 years, NF-κB has served as a paradigm for inducible transcription factors and has provided numerous insights into how signaling events influence gene expression and physiology. Since its discovery as a regulator of expression of the κ light chain gene in B cells, research on NF-κB continues to yield new insights into fundamental cellular processes. Advances in understanding the mechanisms that regulate NF-κB have been accompanied by progress in elucidating the biological significance of this transcription factor in various physiological processes. NF-κB likely plays the most prominent role in the development and function of the immune system and, not surprisingly, when dysregulated, contributes to the pathophysiology of inflammatory disease. As our appreciation of the fundamental role of inflammation in disease pathogenesis has increased, so too has the importance of NF-κB as a key regulatory molecule gained progressively greater significance. However, despite the tremendous progress that has been made in understanding the regulation of NF-κB, there is much that remains to be understood. In this review, we highlight both the progress that has been made and the fundamental questions that remain unanswered after 25 years of study. PMID:22302935

  12. Erosion and entrainment of snow and ice by pyroclastic density currents: some outstanding questions (Invited)

    NASA Astrophysics Data System (ADS)

    Walder, J. S.

    2010-12-01

    A pyroclastic density current moving over snow is likely to transform to a lahar if the pyroclasts incorporate enough (melting) snow and meltwater to bring the bulk water content of the mixture to about 35% by volume. However, the processes by which such a mixture forms are still not well understood. Walder (Bull. Volcanol., v. 62, 2000) showed experimentally the existence of an erosion mechanism that functions even in the absence of relative shear motion between pyroclasts and snow substrate: a portion of the snow melted by a blanket of pyroclasts is vaporized; the flux of water vapor upward through the pyroclasts may be enough to fluidize the pyroclasts, which then convect, rapidly scour the snow substrate and transform into a slurry. But these experiments do not tell us how moving pyroclasts would erode snow, and simply releasing a hot grain flow over a snow surface in the lab gives misleading results owing to improper scaling of τ/σ , the ratio of the shear stress τ exerted by the pyroclastic flow to the shear strength σ of snow. There seems to be no way around this problem for experiments with actual snow. However, it may be possible to circumvent the scaling problem by replacing the snow substrate by a gas-fluidized particle bed: by varying the gas flux, the apparent shear strength of the particle bed can be varied. Such an investigation of erosional processes could be done at room temperature. Snow-avalanche studies (for example, Gauer and Issler, Ann. Glaciol. v. 38, 2003) may provide some insight into snow erosion by a pyroclastic density current. Snow is eroded at the base of a dense snow avalanche by abrasion, particle impacts, and—at the avalanche head—by plowing and a “blasting” mechanism associated with compression of the snowpack and expulsion of pore fluid (air). Erosion at the avalanche head seems to be particularly important. Similar processes are likely to occur when the over-riding flow comprises hot grains. The laboratory release of a hot grain flow over snow, although improperly scaled for investigating erosive processes, does demonstrate that snow hydrology and snowpack stability may be critical in the transformation of pyroclastic density currents to lahars. When such an experiment is run in a sloping flume, with meltwater able to drain freely at the base of the snow layer, the hot grain flow spreads over the snow surface and then comes to rest--no slurry is produced. In contrast, if meltwater drainage is blocked, the wet snow layer fails at its bed, mobilizes as a slush flow, and mixes with the hot grains to form a slurry. Ice layers within a natural snowpack would likewise block meltwater drainage and be conducive to the formation of slush flows. Abrasion and particle impacts—processes that have been studied intensively by engineers concerned with the wear of surfaces in machinery—probably play an important role in the erosion of glacier ice by pyroclastic density currents. A prime example may be the summit ice cap of Nevado del Ruiz, Colombia, which was left grooved by the eruption of 1985 (Thouret, J. Volcanol. Geotherm. Res., v. 41, 1990). Erosion of glacier ice is also strongly controlled by the orientation of crevasses, which can “capture” pyroclastic currents. This phenomenon was well displayed at Mount Redoubt, Alaska during the eruptions of 1989-90 and 2009.

  13. Factors related to successful teaching by outstanding professors: an interpretive study.

    PubMed

    Rossetti, Jeanette; Fox, Patricia G

    2009-01-01

    The purpose of this study was to identify and describe factors associated with successful university teaching within the cultural norms of a public university in the midwestern United States. An interpretive analysis was conducted using the educational philosophy and goal statements of 35 university professors who received Presidential Teaching Awards from the university. The professors' diverse disciplines included nursing, curriculum and instruction, accountancy, music, and political science. The authors offer nursing educators the opportunity to increase their confidence and effectiveness by "learning" from faculty members who have been recognized as exceptionally successful in teaching. Four main relevant themes associated with successful university teaching were identified: Presence, Promotion of Learning, Teachers as Learners, and Enthusiasm. The narratives of the professors helped define the meaning of successful teaching across disciplines and offer nursing faculty additional perspectives and experiences.

  14. 36 CFR 292.66 - Operating plan requirements-outstanding mineral rights.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... proposed roads or access routes identified for use, any new proposed road construction, and the approximate... be used; (5) An identification of the hazardous materials and any other toxic materials, petroleum... placement, control, isolation, remediation, or removal; and (7) A reclamation plan to reduce or control...

  15. 36 CFR 292.66 - Operating plan requirements-outstanding mineral rights.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... proposed roads or access routes identified for use, any new proposed road construction, and the approximate... be used; (5) An identification of the hazardous materials and any other toxic materials, petroleum... placement, control, isolation, remediation, or removal; and (7) A reclamation plan to reduce or control...

  16. Highly Monodispersed PbS Quantum Dots for Outstanding Cascaded-Junction Solar Cells

    PubMed Central

    2016-01-01

    High-performance cascaded-junction quantum dot solar cells (CJQDSCs) are fabricated from as-prepared highly monodispersed lead sulfide QDs. The cells have a high power conversion of 9.05% and a short-circuit current density of 32.51 mA cm–2. A reliable and effective stratagem for fabricating high-quality lead sulfide quantum dots (QD) is explored through a “monomer” concentration-controlled experiment. Robust QDSC performances with different band gaps are demonstrated from the as-proposed synthesis and processing stratagems. Various potential CJQDSCs can be envisioned from the band edge evolution of the QDs as a function of size and ligands reported here. PMID:28035335

  17. Aerographite: ultra lightweight, flexible nanowall, carbon microtube material with outstanding mechanical performance.

    PubMed

    Mecklenburg, Matthias; Schuchardt, Arnim; Mishra, Yogendra Kumar; Kaps, Sören; Adelung, Rainer; Lotnyk, Andriy; Kienle, Lorenz; Schulte, Karl

    2012-07-10

    An ultra lightweight carbon microtube material called Aerographite is synthesized by a novel single-step chemical vapor deposition synthesis based on ZnO networks, which is presently the lightest known material with a density smaller than μg/cm(3). Despite its low density, the hierarchical design leads to remarkable mechanical, electrical, and optical properties. The first experiments with Aerographite electrodes confirm its applicability.

  18. Outstanding Women Athletes: Who They Are and How They Influenced Sports in America. Second Edition.

    ERIC Educational Resources Information Center

    Woolum, Janet

    This updated second edition provides comprehensive and current information on women in sports, detailing the history, biography, bibliography, and statistics of female professional and amateur athletes. The book is divided into 4 parts with 6 chapters. Part 1, History of Women's Sports, presents: (1) Women in American Sports and (2) Women in the…

  19. Chloroform induces outstanding crystallization of poly(hydroxybutyrate) (PHB) vesicles within bacteria.

    PubMed

    Rebois, Rolando; Onidas, Delphine; Marcott, Curtis; Noda, Isao; Dazzi, Alexandre

    2017-03-01

    Poly[(R)-3-hydroxyalkanoate]s or PHAs are aliphatic polyesters produced by numerous microorganisms. They are accumulated as energy and carbon reserve in the form of small intracellular vesicles. Poly[(R)-3-hydroxybutyrate] (PHB) is the most ubiquitous and simplest PHA. An atomic force microscope coupled with a tunable infrared laser (AFM-IR) was used to record highly spatially resolved infrared spectra of commercial purified PHB and native PHB within bacteria. For the first time, the crystallinity degree of native PHB within vesicle has been directly evaluated in situ without alteration due to the measure or extraction and purification steps of the polymer: native PHB is in crystalline state at 15% whereas crystallinity degree reaches 57% in commercial PHB. Chloroform addition on native PHB induces crystallization of the polymer within bacteria up to 60%. This possibility of probing and changing the physical state of polymer in situ could open alternative ways of production for PHB and others biopolymers. Graphical abstract An atomic force microscope coupled with a tunable infrared laser (AFM-IR) has been used to record local infrared spectra of biopolymer PHB within bacteria. Deconvolution of those spectra has allowed to determine in situ the crystallinity degree of native PHB.

  20. Outstanding results from one year's activities of the ESA Metric Camera Working Group

    NASA Astrophysics Data System (ADS)

    Togliatti, G.

    1985-06-01

    Results of the Spacelab Metric Camera experiment on STS-9 in photogrammetry: (precision, triangulations, point identification and mapping, orthophotos); thematic interpretations; and geological interpretation are summarized. Performance is fairly satisfactory in topographic mapping and in geological and thematic applications, with shortcomings in features identification, mainly due to poor lighting conditions and absence of image motion compensation. The metric accuracy of the images is very good, and in several cases better than expected.

  1. Polycyanurate Networks with Enhanced Segmental Flexibility and Outstanding Thermochemical Stability (Pre-Print)

    DTIC Science & Technology

    2013-01-01

    reaction of the monomer, determined by integrating the exothermic reaction peak seen in a first-heating DSC scan, and ΔHr is the residual heat of... reaction of a partially cured sample determined by integrating the exothermic reaction peak using the same heating program and baseline determination...refluxing in aqueous potassium hydroxide gave the diacid 10.35 Reaction with thionyl chloride followed by Friedel-Crafts acylation of anisole gave the

  2. Outstanding magnetorheological effect based on discontinuous shear thickening in the presence of a superplastifier molecule

    NASA Astrophysics Data System (ADS)

    Bossis, G.; Grasselli, Y.; Meunier, A.; Volkova, O.

    2016-09-01

    We present the experimental results showing an increase of stress of about 150 kPa for a weak applied magnetic field (H < 10 kA/m) in an aqueous suspension of carbonyl iron particles coated with a superplasticizer molecule used in cement industry. These values, which are several orders of magnitude larger than those classically obtained with magnetorheological suspensions at such low field, can open the way to new applications. These high values result from the triggering of a discontinuous shear thickening (DST) induced by the magnetic field. A phase diagram is presented for a volume fraction of carbonyl iron particles of 62%, showing two domains in the plane, magnetic field versus shear rate. The lower one is liquid of quite low viscosity and the upper one corresponds to a jammed phase where the particles are in frictional contacts and can only move under very high stresses. The transition between the two states is monitored by the ability of the superplasticizer molecule to resist to the compression forces both hydrodynamic and magnetic.

  3. The symbol-grounding problem in numerical cognition: A review of theory, evidence, and outstanding questions.

    PubMed

    Leibovich, Tali; Ansari, Daniel

    2016-03-01

    How do numerical symbols, such as number words, acquire semantic meaning? This question, also referred to as the "symbol-grounding problem," is a central problem in the field of numerical cognition. Present theories suggest that symbols acquire their meaning by being mapped onto an approximate system for the nonsymbolic representation of number (Approximate Number System or ANS). In the present literature review, we first asked to which extent current behavioural and neuroimaging data support this theory, and second, to which extent the ANS, upon which symbolic numbers are assumed to be grounded, is numerical in nature. We conclude that (a) current evidence that has examined the association between the ANS and number symbols does not support the notion that number symbols are grounded in the ANS and (b) given the strong correlation between numerosity and continuous variables in nonsymbolic number processing tasks, it is next to impossible to measure the pure association between symbolic and nonsymbolic numerosity. Instead, it is clear that significant cognitive control resources are required to disambiguate numerical from continuous variables during nonsymbolic number processing. Thus, if there exists any mapping between the ANS and symbolic number, then this process of association must be mediated by cognitive control. Taken together, we suggest that studying the role of both cognitive control and continuous variables in numerosity comparison tasks will provide a more complete picture of the symbol-grounding problem.

  4. Nyblade Receives 2012 Paul G. Silver Award for Outstanding Scientific Service: Response

    NASA Astrophysics Data System (ADS)

    Nyblade, Andrew

    2013-10-01

    I would like to thank Peter Shearer for his citation and the Seismology, Geodesy, and Tectonophysics sections for this honor. Paul Silver was a friend and mentor, and so receiving this award is especially meaningful. I first met Paul in 1993 when I was a postdoc writing a National Science Foundation proposal to deploy a seismic network in Tanzania and recall his strong encouragement to not cut back on the size of the project in spite of the cost. The project, which was funded, helped pave the way for the development of AfricaArray more than a decade later, illustrating Paul's far-reaching influence on the community through his support of junior scientists.

  5. Energy education on the move: A national energy education survey and case studies of outstanding programs

    SciTech Connect

    Harrigan, M.

    1992-03-01

    Energy education, defined as communication that is designed to influence people's energy usage, has been conducted in one form or another by a wide range of organizations since long before the energy crisis of 1973. Energy education is undertaken by a broad range of public, private, non-profit and utility organizations for a variety of purposes. Each program has a unique message, audience and objectives. Although many energy education programs are still in the early stages of development, some of the programs have been evaluated and show promising results. In an effort to consolidate, describe, and communicate information about the broad range of energy education efforts in this country, a survey was conducted. The surveys were developed to determine who provides energy education, what methods they use, and whether they evaluate the results. The results of the surveys are described and analyzed in the second section of this three-tiered report.

  6. Energy education on the move: A national energy education survey and case studies of outstanding programs

    SciTech Connect

    Harrigan, M.

    1992-03-01

    Energy education, defined as communication that is designed to influence people`s energy usage, has been conducted in one form or another by a wide range of organizations since long before the energy crisis of 1973. Energy education is undertaken by a broad range of public, private, non-profit and utility organizations for a variety of purposes. Each program has a unique message, audience and objectives. Although many energy education programs are still in the early stages of development, some of the programs have been evaluated and show promising results. In an effort to consolidate, describe, and communicate information about the broad range of energy education efforts in this country, a survey was conducted. The surveys were developed to determine who provides energy education, what methods they use, and whether they evaluate the results. The results of the surveys are described and analyzed in the second section of this three-tiered report.

  7. Outstanding insecurities concerning the use of an Ov16-based ELISA in the Amazonia onchocerciasis focus.

    PubMed

    Luz, Sérgio Luiz Bessa; Crainey, James Lee; Shelley, Anthony John; Rubio, Miguel

    2014-07-01

    In a recent issue of Memórias do Instituto Oswaldo Cruz, published in Rio de Janeiro in February 2014 (109: 87-92), Adami et al. have published a survey reporting Mansonella parasite prevalence in the Amazon Region. This report makes a useful contribution to the existing knowledge of filarial parasite distribution within the Amazon area, parasite prevalence rates in relation to age and occupation and provides observations on the possible clinical impact of Mansonella ozzardi. Their publication also provides an account of what appears to be a novel ELISA that has recently been used in the Simuliidae and Onchocerciasis Laboratory of the Oswaldo Cruz Institute, Rio de Janeiro, Brazil. We are concerned that the publication of this ELISA may have created an excessively positive impression of the effectiveness of the onchocerciasis recrudescence serological surveillance tools that are presently available for use in the Amazonia onchocerciasis focus. In this letter we have, thus, sought to highlight some of the limitations of this ELISA and suggest how continuing insecurities concerning the detection of antibodies to Onchocerca volvulus within the Amazonia onchocerciasis focus might be minimised.

  8. Outstanding adsorption performance of high aspect ratio and super-hydrophobic carbon nanotubes for oil removal.

    PubMed

    Kayvani Fard, Ahmad; Mckay, Gordon; Manawi, Yehia; Malaibari, Zuhair; Hussien, Muataz A

    2016-12-01

    Oil removal from water is a highly important area due to the large production rate of emulsified oil in water, which is considered one of the major pollutants, having a negative effect on human health, environment and wildlife. In this study, we have reported the application of high quality carbon nanotube bundles produced by an injected vertical chemical vapor deposition (IV-CVD) reactor for oil removal. High quality, bundles, super hydrophobic, and high aspect ratio carbon nanotubes were produced. The average diameters of the produced CNTs ranged from 20 to 50 nm while their lengths ranged from 300 to 500 μm. Two types of CNTs namely, P-CNTs and C-CNTs, (Produced CNTs from the IV-CVD reactor and commercial CNTs) were used for oil removal from water. For the first time, thermogravimetric analysis (TGA) was conducted to measure maximum oil uptake using CNT and it was found that P-CNT can take oil up to 17 times their weight. The effect of adsorbent dosage, contact time, and agitation speed were examined on the oil spill clean-up efficiency using batch sorption experiments. Higher efficiency with almost 97% removal was achieved using P-CNTs compared to 87% removal using C-CNTs.

  9. Frame Theory Analysis of the Cultures of Three Outstanding Teacher Induction Programs.

    ERIC Educational Resources Information Center

    Peterson, Karen; Bercik, Janet

    This study comparatively analyzed three exemplary beginning teacher induction programs that involved university-school district collaboration. Researchers sent letters to leading researchers in the field of induction and mentoring requesting nominations of exemplary programs. They made contact with nine of the programs and interviewed program…

  10. Outstanding Science Trade Books for Students K-12: Books Published in 2015

    ERIC Educational Resources Information Center

    Science and Children, 2016

    2016-01-01

    Science teachers and mentors continue to be challenged to meet the high expectations of "A Framework for K-12 Science Education" and the "Next Generation Science Standards" ("NGSS"). Indeed the "Framework" urges to help learners "[build] progressively more sophisticated explanations of natural…

  11. Two-Coordinate Co(II) Imido Complexes as Outstanding Single-Molecule Magnets.

    PubMed

    Yao, Xiao-Nan; Du, Jing-Zhen; Zhang, Yi-Quan; Leng, Xue-Bing; Yang, Mu-Wen; Jiang, Shang-Da; Wang, Zhen-Xing; Ouyang, Zhong-Wen; Deng, Liang; Wang, Bing-Wu; Gao, Song

    2017-01-11

    The pursuit of single-molecule magnets (SMMs) with better performance urges new molecular design that can endow SMMs larger magnetic anisotropy. Here we report that two-coordinate cobalt imido complexes featuring highly covalent Co═N cores exhibit slow relaxation of magnetization under zero direct-current field with a high effective relaxation barrier up to 413 cm(-1), a new record for transition metal based SMMs. Two theoretical models were carried out to investigate the anisotropy of these complexes: single-ion model and Co-N coupling model. The former indicates that the pseudo linear ligand field helps to preserve the first-order orbital momentum, while the latter suggests that the strong ferromagnetic interaction between Co and N makes the [CoN](+) fragment a pseudo single paramagnetic ion, and that the excellent performance of these cobalt imido SMMs is attributed to the inherent large magnetic anisotropy of the [CoN](+) core with |MJ = ± 7/2⟩ ground Kramers doublet.

  12. What's Making the Difference in Achieving Outstanding Primary School Learning Outcomes in Numeracy?

    ERIC Educational Resources Information Center

    Busatto, Susan

    2004-01-01

    In this article, the author presents findings from a large NSW project designed to explore educational practices that "make a difference" in numeracy outcomes. The project was coordinated by the NSW Department of Education and Training, the Catholic Education Commission, the Association of Independent Schools, and research teams from the…

  13. 2010 Award for Outstanding Doctoral Thesis Research in Biological Physics Talk: How the Genome Folds

    NASA Astrophysics Data System (ADS)

    Lieberman-Aiden, Erez

    2011-03-01

    I describe Hi-C, a novel technology for probing the three-dimensional architecture of whole genomes by coupling proximity-based ligation with massively parallel sequencing. Working with collaborators at the Broad Institute and UMass Medical School, we used Hi-C to construct spatial proximity maps of the human genome at a resolution of 1Mb. These maps confirm the presence of chromosome territories and the spatial proximity of small, gene-rich chromosomes. We identified an additional level of genome organization that is characterized by the spatial segregation of open and closed chromatin to form two genome-wide compartments. At the megabase scale, the chromatin conformation is consistent with a fractal globule, a knot-free conformation that enables maximally dense packing while preserving the ability to easily fold and unfold any genomic locus. The fractal globule is distinct from the more commonly used globular equilibrium model. Our results demonstrate the power of Hi-C to map the dynamic conformations of whole genomes.

  14. Neil Hamilton Fairley KBE FRCP FRS (1891-1966): an outstanding tropical physician in the twentieth century.

    PubMed

    Cook, G C

    2014-11-01

    In the late nineteenth and early twentieth centuries, British physicians led the way in tropical medicine research. Several years later scientific advances had slowed, and Fairley's numerous contributions were thus most welcome. Neil Hamilton Fairley was born of Scottish parents at Victoria, Australia. After qualification at Melbourne, he joined the Australian Army Medical Service (AAMS) and after several minor research projects, made valuable contributions to the understanding of tropical sprue at Bombay (now Mumbai), India. However, Fairley's major researches were carried out during World War II (1939-45). Together with J S K Boyd he demonstrated the great value of sulphaguanidine in bacillary dysentery. Working in northern Australia and the south-Pacific region, he both contributed to elucidation of the Plasmodium vivax life-cycle, and more importantly demonstrated the value of alternative anti-malarial compounds to quinine (which was not readily available). Back in London after the war, Fairley briefly occupied the Wellcome Chair of Tropical Medicine, strongly supported London's clinical tropical medicine, and was subsequently knighted in 1950.

  15. Invited review paper: Some outstanding issues in the study of great megathrust earthquakes-The Cascadia example

    NASA Astrophysics Data System (ADS)

    Wang, Kelin; Tréhu, Anne M.

    2016-08-01

    Because of a combination of new observational tools and a flurry of large megathrust earthquakes, tremendous progress has been made in recent years towards understanding the process of great subduction earthquakes at Cascadia and other subduction zones around the world. This review article attempts to clarify some of widely used geodynamic concepts and identify the most important scientific questions for future research related to megathrust behaviour. It is important to specify how the megathrust seismogenic zone has been defined when comparing data and models. Observations and concepts currently used to define the seismogenic zone include: (A) the stability transition in rate-and-state dependent friction; (B) the slip zone of large interplate earthquakes; (C) the distribution of small-medium earthquakes; and (D) the geodetically-determined zone of fault locking. Land-based geodetic measurements indicate that the Cascadia megathrust is locked to some extent, but the degree of locking is not well constrained. The near absence of detectable interplate seismicity, with the exception of a segment near 44.5°N and near the Mendocino Triple Junction, is presently interpreted to indicate full locking along most of Cascadia. Resolving the locking state requires seafloor geodetic measurements. The slip behaviour of the shallowest segment of the megathrust and its tsunamigenic potential are complex and variable. Structural studies combined with modeling have the potential to improve our understanding of the signature left in the structure by the slip history. For several reasons, but mostly because of interseismic viscoelastic stress relaxation, the downdip limit of megathrust locking cannot be reliably constrained by geodetic data. Independent information is needed on the composition and thermal state of fault zone materials. The spatial relationship between the seismogenic zone and the zone of Episodic Tremor and Slip (ETS) remains controversial. Observations from the Nankai subduction zone and the San Andreas Fault suggest that ETS does not mark a simple spatial transition from seismic to aseismic behaviour and that multiple transitions may be present because of petrological and rheological changes with depth. Coseismic rupture in the AD 1700 Cascadia earthquake has been shown to vary along strike, and it is important to investigate whether the position of boundaries between high slip and low slip are stationary with time (and therefore probably geologically controlled) and are reflected in current interseismic locking of the megathrust.

  16. Outstanding supercapacitive properties of Mn-doped TiO2 micro/nanostructure porous film prepared by anodization method

    NASA Astrophysics Data System (ADS)

    Ning, Xuewen; Wang, Xixin; Yu, Xiaofei; Zhao, Jianling; Wang, Mingli; Li, Haoran; Yang, Yang

    2016-03-01

    Mn-doped TiO2 micro/nanostructure porous film was prepared by anodizing a Ti-Mn alloy. The film annealed at 300 °C yields the highest areal capacitance of 1451.3 mF/cm2 at a current density of 3 mA/cm2 when used as a high-performance supercapacitor electrode. Areal capacitance retention is 63.7% when the current density increases from 3 to 20 mA/cm2, and the capacitance retention is 88.1% after 5,000 cycles. The superior areal capacitance of the porous film is derived from the brush-like metal substrate, which could greatly increase the contact area, improve the charge transport ability at the oxide layer/metal substrate interface, and thereby significantly enhance the electrochemical activities toward high performance energy storage. Additionally, the effects of manganese content and specific surface area of the porous film on the supercapacitive performance were also investigated in this work.

  17. Outstanding supercapacitive properties of Mn-doped TiO2 micro/nanostructure porous film prepared by anodization method.

    PubMed

    Ning, Xuewen; Wang, Xixin; Yu, Xiaofei; Zhao, Jianling; Wang, Mingli; Li, Haoran; Yang, Yang

    2016-03-04

    Mn-doped TiO2 micro/nanostructure porous film was prepared by anodizing a Ti-Mn alloy. The film annealed at 300 °C yields the highest areal capacitance of 1451.3 mF/cm(2) at a current density of 3 mA/cm(2) when used as a high-performance supercapacitor electrode. Areal capacitance retention is 63.7% when the current density increases from 3 to 20 mA/cm(2), and the capacitance retention is 88.1% after 5,000 cycles. The superior areal capacitance of the porous film is derived from the brush-like metal substrate, which could greatly increase the contact area, improve the charge transport ability at the oxide layer/metal substrate interface, and thereby significantly enhance the electrochemical activities toward high performance energy storage. Additionally, the effects of manganese content and specific surface area of the porous film on the supercapacitive performance were also investigated in this work.

  18. Project Planning Resulted in Outstanding Building Deficiencies and Decreased Functionality of the Main Fire Station at Naval Station Great Lakes

    DTIC Science & Technology

    2012-09-14

    emergency medical technicians5 to the main fire station. The scope of the project also included replacing the roofing, insulation, doors, fire sprinklers ...emergency lighting, and fire alarms. In addition, the scope included repairing water and wastewater piping and mechanical systems to meet...rooms, alert systems , and dorm rooms. PPE Storage Was Inadequate The storage area for PPE in the fire station did not comply with the

  19. Can a hybrid chemical-ferromagnetic model of the avian compass explain its outstanding sensitivity to magnetic noise?

    PubMed Central

    2017-01-01

    While many properties of the magnetic compass of migratory birds are satisfactory explained within the chemical model of magnetoreception, its extreme sensitivity to radio-frequency magnetic fields remains a mystery. Apparently, this difficulty could be overcome if the magnetoreceptor model were augmented with a magnetite nanoparticle, which would amplify the magnetic field at the position of the magneto-sensitive cryptochrome molecule. However, comparison of the radio-frequency power used in the experiment with intrinsic magnetization noise of such a particle, estimated from the theory of fluctuations, shows that the required sensitivity cannot be reached with realistic parameters of iron-oxide nanocrystals. PMID:28296939

  20. Phosphorescent Iridium(III) Complexes Bearing Fluorinated Aromatic Sulfonyl Group with Nearly Unity Phosphorescent Quantum Yields and Outstanding Electroluminescent Properties.

    PubMed

    Zhao, Jiang; Yu, Yue; Yang, Xiaolong; Yan, Xiaogang; Zhang, Huiming; Xu, Xianbin; Zhou, Guijiang; Wu, Zhaoxin; Ren, Yixia; Wong, Wai-Yeung

    2015-11-11

    A series of heteroleptic functional Ir(III) complexes bearing different fluorinated aromatic sulfonyl groups has been synthesized. Their photophysical features, electrochemical behaviors, and electroluminescent (EL) properties have been characterized in detail. These complexes emit intense yellow phosphorescence with exceptionally high quantum yields (ΦP > 0.9) at room temperature, and the emission maxima of these complexes can be finely tuned depending upon the number of the fluorine substituents on the pendant phenyl ring of the sulfonyl group. Furthermore, the electrochemical properties and electron injection/transporting (EI/ET) abilities of these Ir(III) phosphors can also be effectively tuned by the fluorinated aromatic sulfonyl group to furnish some desired characters for enhancing the EL performance. Hence, the maximum luminance efficiency (ηL) of 81.2 cd A(-1), corresponding to power efficiency (ηP) of 64.5 lm W(-1) and external quantum efficiency (ηext) of 19.3%, has been achieved, indicating the great potential of these novel phosphors in the field of organic light-emitting diodes (OLEDs). Furthermore, a clear picture has been drawn for the relationship between their optoelectronic properties and chemical structures. These results should provide important information for developing highly efficient phosphors.

  1. Resolving Past Liabilities for Future Reduction in Greenhouse Gases; Nuclear Energy and the Outstanding Federal Liability of Spent Nuclear Fuel

    NASA Astrophysics Data System (ADS)

    Donohue, Jay

    This thesis will: (1) examine the current state of nuclear power in the U.S.; (2) provide a comparison of nuclear power to both existing alternative/renewable sources of energy as well as fossil fuels; (3) dissect Standard Contracts created pursuant to the National Waste Policy Act (NWPA), Congress' attempt to find a solution for Spent Nuclear Fuel (SNF), and the designation of Yucca Mountain as a repository; (4) the anticipated failure of Yucca Mountain; (5) explore WIPP as well as attempts to build a facility on Native American land in Utah; (6) examine reprocessing as a solution for SNF used by France and Japan; and, finally, (7) propose a solution to reduce GHG's by developing new nuclear energy plants with financial support from the U.S. government and a solution to build a storage facility for SNF through the sitting of a repository based on a "bottom-up" cooperative federalism approach.

  2. Outstanding supercapacitive properties of Mn-doped TiO2 micro/nanostructure porous film prepared by anodization method

    PubMed Central

    Ning, Xuewen; Wang, Xixin; Yu, Xiaofei; Zhao, Jianling; Wang, Mingli; Li, Haoran; Yang, Yang

    2016-01-01

    Mn-doped TiO2 micro/nanostructure porous film was prepared by anodizing a Ti-Mn alloy. The film annealed at 300 °C yields the highest areal capacitance of 1451.3 mF/cm2 at a current density of 3 mA/cm2 when used as a high-performance supercapacitor electrode. Areal capacitance retention is 63.7% when the current density increases from 3 to 20 mA/cm2, and the capacitance retention is 88.1% after 5,000 cycles. The superior areal capacitance of the porous film is derived from the brush-like metal substrate, which could greatly increase the contact area, improve the charge transport ability at the oxide layer/metal substrate interface, and thereby significantly enhance the electrochemical activities toward high performance energy storage. Additionally, the effects of manganese content and specific surface area of the porous film on the supercapacitive performance were also investigated in this work. PMID:26940546

  3. The Florida Prostate Cancer Research Training Opportunities for Outstanding Leaders (ReTOOL) Program: Creating Opportunities for Minority HBCU Students

    DTIC Science & Technology

    2015-03-01

    Scientific writing and dissemination Dr. Henrietta Logan Dr. Elizabeth Pomery June 22 Literature search strategies Rae Jesano MSLS, AHI June 29 GRE...Topic Speaker May 17 Tour of Health Science Library Facilities (C2-41c) Rae Jesano MSLS, AHIP May 24 Literature Search Strategies Rae Jesano MSLS...Library Facilities (C2-41c) Rae Jesano MSLS, AHIP May 24 Literature Search Strategies Rae Jesano MSLS, AHIP May 31 Prostate Cancer Advocacy Mr. Samuel

  4. Who to Blame: Irrational Decision-Makers or Stupid Modelers? (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Madani, Kaveh

    2016-04-01

    Water management benefits from a suite of modelling tools and techniques that help simplifying and understanding the complexities involved in managing water resource systems. Early water management models were mainly concerned with optimizing a single objective, related to the design, operations or management of water resource systems (e.g. economic cost, hydroelectricity production, reliability of water deliveries). Significant improvements in methodologies, computational capacity, and data availability over the last decades have resulted in developing more complex water management models that can now incorporate multiple objectives, various uncertainties, and big data. These models provide an improved understanding of complex water resource systems and provide opportunities for making positive impacts. Nevertheless, there remains an alarming mismatch between the optimal solutions developed by these models and the decisions made by managers and stakeholders of water resource systems. Modelers continue to consider decision makers as irrational agents who fail to implement the optimal solutions developed by sophisticated and mathematically rigours water management models. On the other hand, decision makers and stakeholders accuse modelers of being idealist, lacking a perfect understanding of reality, and developing 'smart' solutions that are not practical (stable). In this talk I will have a closer look at the mismatch between the optimality and stability of solutions and argue that conventional water resources management models suffer inherently from a full-cooperation assumption. According to this assumption, water resources management decisions are based on group rationality where in practice decisions are often based on individual rationality, making the group's optimal solution unstable for individually rational decision makers. I discuss how game theory can be used as an appropriate framework for addressing the irrational "rationality assumption" of water resources management models and for better capturing the social aspects of decision making in water management systems with multiple stakeholders.

  5. Platinized Graphene/ceramics Nano-sandwiched Architectures and Electrodes with Outstanding Performance for PEM Fuel Cells

    NASA Astrophysics Data System (ADS)

    Chen, Xu; He, Daping; Wu, Hui; Zhao, Xiaofeng; Zhang, Jian; Cheng, Kun; Wu, Peng; Mu, Shichun

    2015-11-01

    For the first time a novel oxygen reduction catalyst with a 3D platinized graphene/nano-ceramic sandwiched architecture is successfully prepared by an unusual method. Herein the specific gravity of graphene nanosheets (GNS) is tailored by platinizing graphene in advance to shorten the difference in the specific gravity between carbon and SiC materials, and then nano-SiC is well intercalated into GNS interlayers. This nano-architecture with highly dispersed Pt nanoparticles exhibits a very high oxygen reduction reaction (ORR) activity and polymer electrolyte membrane (PEM) fuel cell performance. The mass activity of half cells is 1.6 times of that of the GNS supported Pt, and 2.4 times that of the commercial Pt/C catalyst, respectively. Moreover, after an accelerated stress test our catalyst shows a predominantly electrochemical stability compared with benchmarks. Further fuel cell tests show a maximum power density as high as 747 mW/cm2 at low Pt loading, which is more than 2 times higher than that of fuel cells with the pristine graphene electrode.

  6. Platinized Graphene/ceramics Nano-sandwiched Architectures and Electrodes with Outstanding Performance for PEM Fuel Cells.

    PubMed

    Chen, Xu; He, Daping; Wu, Hui; Zhao, Xiaofeng; Zhang, Jian; Cheng, Kun; Wu, Peng; Mu, Shichun

    2015-11-05

    For the first time a novel oxygen reduction catalyst with a 3D platinized graphene/nano-ceramic sandwiched architecture is successfully prepared by an unusual method. Herein the specific gravity of graphene nanosheets (GNS) is tailored by platinizing graphene in advance to shorten the difference in the specific gravity between carbon and SiC materials, and then nano-SiC is well intercalated into GNS interlayers. This nano-architecture with highly dispersed Pt nanoparticles exhibits a very high oxygen reduction reaction (ORR) activity and polymer electrolyte membrane (PEM) fuel cell performance. The mass activity of half cells is 1.6 times of that of the GNS supported Pt, and 2.4 times that of the commercial Pt/C catalyst, respectively. Moreover, after an accelerated stress test our catalyst shows a predominantly electrochemical stability compared with benchmarks. Further fuel cell tests show a maximum power density as high as 747 mW/cm(2) at low Pt loading, which is more than 2 times higher than that of fuel cells with the pristine graphene electrode.

  7. Outstanding ethical-legal issues on biobanks. An overview on the regulations of the Member States of the Eurobiobank project.

    PubMed

    Martín Uranga, Amelia; Martín Arribas, M Concepción; Jaeger, Cécile; Posadas, Manuel

    2005-01-01

    EuroBiobank (EBB) was created in 2001. This is a network of European biological banks made up by 7 member States. The purpose of the network is to ease the access to the biological resources of the human being in patients who suffer uncommon diseases. This study deals mainly with the ethical-legal debate that has arisen in those States, as well as the existing legal regulation and the proposed recommendations for its possible solution. Likewise, there is a special mention about the informed consent, the possible use in the future of the samples in relation to its commercial use as industrial property rights and to Directive 2004/03 that was adopted by the European Parliament 31 March, 2004.

  8. Governor`s award of excellence for outstanding achievement in waste management. Cape Industries, Wilmington, North Carolina

    SciTech Connect

    1990-12-31

    Cape Industries produces Dimethyl Terephthalate (DMT) and Terephthalic Acid (TA) which are used as raw materials in the production of polyester fibers and films. In this process para-cymene is used as a heat transfer fluid for the process equipment. As the para-cymene is circulated through the process and repeatedly reheated to operating temperatures, some thermal degradation of the cymene and minor contamination due to infiltration of the process material occurs. Prior to August 1988 this spent material was purged from the system and shipped off site for reclamation. The spent material was classified as a hazardous waste due to the characteristic of ignitability. In early 1988 existing equipment was retrofitted allowing for on site distillation of the spent para-cymene in a closed-loop system. Reclaimed para-cymene is returned to the system for reuse while the still bottoms are used as a feedstock in the production of DMT. No waste material is generated.

  9. Band Gap Tunable Zn2SnO4 Nanocubes through Thermal Effect and Their Outstanding Ultraviolet Light Photoresponse

    PubMed Central

    Zhao, Yan; Hu, Linfeng; Liu, Hui; Liao, Meiyong; Fang, Xiaosheng; Wu, Limin

    2014-01-01

    This work presents a method for synthesis of high-yield, uniform and band gap tunable Zn2SnO4 nanocubes. These nanocubes can be further self-assembled into a series of novel nanofilms with tunable optical band gaps from 3.54 to 3.18 eV by simply increasing the heat treatment temperature. The Zn2SnO4 nanocube-nanofilm based device has been successfully fabricated and presents obviously higher photocurrent, larger photocurrent to dark current ratio than the previously reported individual nanostructure-based UV-light photodetectors, and could be used in high performance photodetectors, solar cells, and electrode materials for Li-ion battery. PMID:25355096

  10. 2011 Outstanding AFCPE[R] Conference Paper: Development and Validation of a Financial Self-Efficacy Scale

    ERIC Educational Resources Information Center

    Lown, Jean M.

    2011-01-01

    This study developed a 6-item Financial Self-Efficacy Scale for use by researchers, educators, counselors, and advisors. Bandura's concept of self-efficacy and Prochaska's Transtheoretical Model of Behavior Change provided the theoretical framework. Scale items were adapted from Schwarzer and Jerusalem's (1995) General Self-Efficacy Scale.…

  11. The Stoners: Drugs, Demons, and Delinquency. Garland Series, Cults and Nonconventional Religious Groups: A Collection of Outstanding Dissertations and Monographs.

    ERIC Educational Resources Information Center

    Trostle, Lawrence C.

    Some adolescent Hispanic gang members in East Los Angeles call themselves Stoners, a reference to heavy illegal substance abuse. Stoners are distinguished from other gang members by their acquaintance with the occult sciences and Satanism. This book begins with a literature review covering traditional gangs and their subcultures in the 19th and…

  12. Thoughts on some outstanding issues in the physics of equilibrium wetting and conceptual understanding of contact lines

    NASA Astrophysics Data System (ADS)

    Sefiane, K.

    2011-08-01

    Equilibrium wetting is a fundamental phenomenon, relevant to many scientific areas. Since the pioneering work on equilibrium wetting of Thomas Young (1805) [1], researchers strived to advance our understanding of this fundamental problem. Despite its apparent simplicity, equilibrium wetting phenomenon still holds many unanswered questions and represents a challenge to modern physicists and engineers. The relationship between quantities amenable to measurements, like macroscopic wetting contact angle, and other surface ener- gies and physical properties remains to be fully elucidated. Wetting is a physical problem which spans over two length scales, inner region ("microscopic") length scale and outer region ("macroscopic"). The three-phase contact line, where the macroscopic region meets the micro- scopic one, and underlying surface forces, represents a challenge to fully understand and model. In this paper, a brief review of the basics of wetting and existing concepts is first presented. Then two important questions are discussed in the light of the latest experimental findings: first the relevance of the continuum concept when describing interfaces near the three-phase contact line, and second the effect of adsorption on interfacial energies and its use to explain some interesting observations like the dependence of equilibrium contact angle on pressure and size of droplets. These recent observations raise some fundamental questions about how the three-phase contact line is conceptualised.

  13. "Outstanding Individuals Do Not Arise from Ancestrally Poor Stock": Racial Science and the Education of Black South Africans.

    ERIC Educational Resources Information Center

    Appel, Stephen W.

    1989-01-01

    Examines the construction of racial scientific discourse within the milieu of an extremely racially segregated society. Traces the influence of capitalism, racism, Social Darwinism, eugenics, and "racial science" on the pedagogy of modern apartheid in South Africa. Finds evidence of pervasive effects of "scientific" ideas on…

  14. Infection by Ascaris lumbricoides and bronchial hyper reactivity: an outstanding association in Venezuelan school children from endemic areas.

    PubMed

    Hagel, I; Cabrera, M; Hurtado, M A; Sanchez, P; Puccio, F; Di Prisco, M C; Palenque, M

    2007-09-01

    Asthma and other respiratory diseases have increased in the last years among Venezuelan children from helminthic endemic areas where the infection by Ascaris lumbricoides has been associated to bronchial airway inflammation in parasitized individuals. The aim of this work was to investigate the possible associations between the development of bronchial hyper reactivity and the immune response against A. lumbricoides in urban and rural children. We evaluated 470 school children from rural and urban communities. Pulmonary function tests were performed and >or=20% PC(20) changes were considered as a positive diagnostic of bronchial hyper reactivity. The prevalence and intensity of A. lumbricoides infection was determined by faecal examination. Specific serum IgE levels using a modified ELISA and skin prick tests against A. lumbricoides and the common allergen Dermatophagoides pteronyssinus were done. The number of circulating lymphocyte sub populations was determined by flow cytometry analysis. In rural children, bronchial hyper reactivity was associated with increased specific levels of anti-A. lumbricoides IgE (p<0.0001) and skin test positivity for A. lumbricoides (p<0.0001). The percentage of FEV1 predictive values correlated inversely (p<0.0001) with anti-A. lumbricoides IgE levels. Elevated numbers of circulating CD3+CD4+ and CD20+CD23+ cells were found in rural children with bronchial hyper reactivity compared to their asymptomatic counterparts. They correlated positively with anti-A. lumbricoides IgE levels (p<0.005 and <0.0001, respectively). In contrast, in urban children, bronchial hyper reactivity was associated with elevated anti-D. pteronyssinus IgE levels (p=0. 0089), skin hyper reactivity towards this aero allergen (p=0.003) and to an increase in the number of CD3+CD8+ (p<0.0001). Our results suggest that the IgE response against A. lumbricoides infection may be involved in the development of bronchial hyper reactivity among rural children from endemic areas and also that improved hygienic conditions in the urban environment is associated with increased responses to airborne allergens.

  15. High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting

    PubMed Central

    Song, Young Hyun; Ji, Eun Kyung; Jeong, Byung Woo; Jung, Mong Kwon; Kim, Eun Young; Yoon, Dae Ho

    2016-01-01

    We report on Y3Al5O12: Ce3+ ceramic phosphor plate (CPP) using nano phosphor for high power laser diode (LD) application for white light in automotive lighting. The prepared CPP shows improved luminous properties as a function of Ce3+ concentration. The luminous properties of the Y3Al5O12: Ce3+ CPP nano phosphor are improved when compared to the Y3Al5O12: Ce3+ CPP with bulk phosphor, and hence, the luminous emittance, luminous flux, and conversion efficiency are improved. The Y3Al5O12: Ce3+ CPP with an optimal Ce3+ content of 0.5 mol % shows 2733 lm/mm2 value under high power blue radiant flux density of 19.1 W/mm2. The results indicate that Y3Al5O12: Ce3+ CPP using nano phosphor can serve as a potential material for solid-state laser lighting in automotive applications. PMID:27502730

  16. The Florida Prostate Cancer Research Training Opportunities for Outstanding Leaders (ReTOOL) Program: Creating Opportunities for Minority HBCU Students

    DTIC Science & Technology

    2014-03-01

    contacted) 1 2 3 4 5 6 7 8 9 10 56 Hello , my name is (FULL NAME) and I’m a research assistant calling on...organization was contacted) 1 2 3 4 5 6 7 8 9 10 61 Hello , my name is (FULL NAME) and I’m a research assistant...calls (check each time organization was contacted) 1 2 3 4 5 6 7 8 9 10 68 Hello , my name is (FULL NAME

  17. Peak water from glaciers: advances and challenges in a global perspective (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Huss, Matthias; Hock, Regine

    2014-05-01

    Mountain glaciers show a high sensitivity to changes in climate forcing. In a global perspective, their anticipated retreat will pose far-reaching challenges to the manage- ment of fresh water resources and will raise sea levels significantly within only a few decades. Different model frameworks have been applied to simulate melt water con- tributions of glaciers outside the two ice sheets for the recent IPCC report. However, these models depend on strongly simplified, and often empirical descriptions of the driving processes hampering the reliability of the results. For example, glacier retreat is parameterized with volume-area scaling thus neglecting the glacier's actual geome- try and the surface elevation feedback. Frontal ablation of tidewater and lake-calving glaciers, an important mass loss component for a third of the world's glacier area, is not accounted for. Thus, a transition from the physically-based mass balance-ice flow models developed for single glaciers to the application at the global scale is urgently needed. The chal- lenges are manifold but can be tackled with the new data sets, methods and process- understanding that have emerged during the last years. Here, we present a novel glacier model for calculating the response of surface mass balance and 3D glacier geometry for each individual glacier around the globe. Our approach accounts for feedbacks due to glacier retreat and includes models for mass loss due to frontal ablation and the refreezing of water in the snow/firn. The current surface geometry and thickness distribution for each of the world's roughly 200'000 glaciers is extracted from the Randolph Glacier Inventory v3.2 and terrain models. Our simulations are driven with 14 Global Circulation Models from the CMIP5 project using the RCP4.5, RCP8.5 and RCP2.6 scenarios. Regionally specified cumulative global sea level rise due to glacier mass loss until 2100 is discussed in the light of model uncertainties and the advantages of using a physically- based approach. In particular, we focus on the timing of peak water from glacierized catchments in all climatic regions of the earth. The maximum rate of water release from glacial storage is subject to a high spatio-temporal variability. Peak water represents a crucial tipping point for sustained water supply even for regions with only a minor glacier coverage, and is relevant to the dynamics of sea level rise. Furthermore, we address the ratio between surface mass balance and frontal ablation of tidewater glaciers at the global scale.

  18. Persistent luminescence in ZnGa2O4:Cr: an outstanding biomarker for in-vivo imaging

    NASA Astrophysics Data System (ADS)

    Sharma, S. K.; Bessiere, A.; Gourier, D.; Binet, L.; Viana, B.; Basavaraju, N.; Priolkar, K.; Maldiney, T.; Scherman, D.; Richard, C.

    2014-03-01

    ZnGa2O4 (ZGO) is a normal spinel. When doped with Cr3+ ions, ZGO:Cr becomes a high brightness persistent luminescence material with an emission spectrum perfectly matching the transparency window of living tissues. It allows in vivo mouse imaging with a better signal to background ratio than classical fluorescent NIR probes. The most interesting characteristic of ZGO:Cr lies in the fact that its LLP can be excited with red light, well below its band gap energy and in the transparency window of living tissues. A mechanism based on the trapping of carriers localized around a special type of Cr3+ ions namely CrN2 can explain this singularity. The antisite defects of the structure are the main responsible traps in the persistent luminescence mechanism. When located around Cr3+ ions, they allow, via Cr3+ absorption, the storage of not only UV light but also all visible light from the excitation source.

  19. Atmospheric measurements of volcanic eruptions with the infrared sounder IASI (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Clarisse, L.

    2012-04-01

    Due to their spatial coverage, satellite sounders are ideal for measuring volcanic emissions. They are able to monitor (dormant) volcanoes in remote parts of the world and measure large plumes from explosive eruptions. Currently over a dozen instruments (operating in the IR and UV spectral ranges) are capable of detecting volcanic ash and/or sulphur dioxide. Satellite measurements are highly relevant for hazard mitigation, locally but also on large scales for air traffic avoidance of volcanic clouds. Their coverage enables to establish an accurate time-record of global volcanic emissions. This is useful from a volcanology perspective, but also for assessing the global climate impact of volcanic emissions. In this talk we give an overview of four years of measurements of large eruptive plumes from the high resolution infrared atmospheric sounding interferometer (IASI). The focus is on the detection and measurement of volcanic aerosol (volcanic ash, ice and sulphuric acid). In the second part of this talk, we discuss sulphur dioxide measurements and the recent first observations of hydrogen sulphide. We conclude with a discussion of open problems and challenges which lie ahead for the remote sensing of volcanic products.

  20. High power laser-driven ceramic phosphor plate for outstanding efficient white light conversion in application of automotive lighting.

    PubMed

    Song, Young Hyun; Ji, Eun Kyung; Jeong, Byung Woo; Jung, Mong Kwon; Kim, Eun Young; Yoon, Dae Ho

    2016-08-09

    We report on Y3Al5O12: Ce(3+) ceramic phosphor plate (CPP) using nano phosphor for high power laser diode (LD) application for white light in automotive lighting. The prepared CPP shows improved luminous properties as a function of Ce(3+) concentration. The luminous properties of the Y3Al5O12: Ce(3+) CPP nano phosphor are improved when compared to the Y3Al5O12: Ce(3+) CPP with bulk phosphor, and hence, the luminous emittance, luminous flux, and conversion efficiency are improved. The Y3Al5O12: Ce(3+) CPP with an optimal Ce(3+) content of 0.5 mol % shows 2733 lm/mm(2) value under high power blue radiant flux density of 19.1 W/mm(2). The results indicate that Y3Al5O12: Ce(3+) CPP using nano phosphor can serve as a potential material for solid-state laser lighting in automotive applications.

  1. Heber D. Curtis: The Re-entry Graduate Student at UVa Who Became an Outstanding Dynamical Astronomer

    NASA Astrophysics Data System (ADS)

    Osterbrock, D. E.

    1998-09-01

    Heber D. Curtis, the great pioneer of nebular and galactic research, later observatory director at Allegheny and then at the University of Michigan, was a dynamical astronomer in the earliest days of photographic radial-velocity measurements. He did his undergraduate work in classical languages at Michigan, where as a student he showed no apparent interest in astronomy. Curtis's first jobs were teaching Latin and Greek at Napa College, then at the College of the Pacific. Both had small Clark refractors and he began observing, then measuring, visual double stars. He decided to become an astronomer, and spent the summers of 1897 and 1898 as a special student at Lick Observatory, and of 1899 at Ann Arbor. In 1900, at the age of 28, married and with two small children, Curtis entered the University of Virginia as a full-time graduate student. Both Yerkes and Lick Observatories had declined to accept him. At Charlottesville Curtis did his Ph.D. thesis on the orbit of Comet 1898 I, received his degree in 1902, and immediately joined the Lick staff. His work on spectroscopic binaries and high-velocity stars at Mount Hamilton and at the Lick Southern Hemisphere Observatory, will be described in this paper. W. W. Campbell and Curtis published the First Catalogue of Spectroscopic Binaries in 1905; it listed all 140 of these objects then known. In 1909, Curtis was recalled to Lick to take over the Crossley reflector and thus left the field of dynamical astronomy. At Santiago, his assistant was George F. Paddock, a UVa M.A. in astronomy who based his Ph.D. thesis on Chile observational data. When Ormond Stone, UVa professor of astronomy and Leander McCormick Observatory director, retired in 1912, Curtis was the first choice to succeed him, but declined the post to remain at Lick.

  2. Silica-supported Au@hollow-SiO2 particles with outstanding catalytic activity prepared via block copolymer template approach.

    PubMed

    Shajkumar, Aruni; Nandan, Bhanu; Sanwaria, Sunita; Albrecht, Victoria; Libera, Marcin; Lee, Myong-Hoon; Auffermann, Gudrun; Stamm, Manfred; Horechyy, Andriy

    2017-04-01

    Catalytically active Au@hollow-SiO2 particles embedded in porous silica support (Au@hollow-SiO2@PSS) were prepared by using spherical micelles from poly(styrene)-block-poly(4-vinyl pyridine) block copolymer as a sacrificial template. Drastic increase of the shell porosity was observed after pyrolytic removal of polymeric template because the stretched poly(4-vinyl pyridine) chains interpenetrating with silica shell acted as an effective porogen. The embedding of Au@hollow-SiO2 particles in porous silica support prevented their fusion during pyrolysis. The catalytic activity of Au@hollow-SiO2@PSS was investigated using a model reaction of catalytic reduction of 4-nitrophenol and reductive degradation of Congo red azo-dye. Significantly, to the best of our knowledge, Au@hollow-SiO2@PSS catalyst shows the highest activity among analogous systems reported till now in literature. Such high activity was attributed to the presence of multiple pores within silica shell of Au@hollow-SiO2 particles and easy accessibility of reagents to the catalytically active sites of the ligand-free gold surface through the porous silica support.

  3. In vitro synthesis of linear α-1,3-glucan and chemical modification to ester derivatives exhibiting outstanding thermal properties.

    PubMed

    Puanglek, Sakarin; Kimura, Satoshi; Enomoto-Rogers, Yukiko; Kabe, Taizo; Yoshida, Makoto; Wada, Masahisa; Iwata, Tadahisa

    2016-07-29

    Bio-based polymer is considered as one of potentially renewable materials to reduce the consumption of petroleum resources. We report herein on the one-pot synthesis and development of unnatural-type bio-based polysaccharide, α-1,3-glucan. The synthesis can be achieved by in vitro enzymatic polymerization with GtfJ enzyme, one type of glucosyltransferase, cloned from Streptococcus salivarius ATCC 25975 utilizing sucrose, a renewable feedstock, as a glucose monomer source, via environmentally friendly one-pot water-based reaction. The structure of α-1,3-glucan is completely linear without branches with weight-average molecular weight (Mw) of 700 kDa. Furthermore, acetate and propionate esters of α-1,3-glucan were synthesized and characterized. Interestingly, α-1,3-glucan acetate showed a comparatively high melting temperature at 339 °C, higher than that of commercially available thermoplastics such as PET (265 °C) and Nylon 6 (220 °C). Thus, the discovery of crystalline α-1,3-glucan esters without branches with high thermal stability and melting temperature opens the gate for further researches in the application of thermoplastic materials.

  4. Resources for Teaching about Anti-Racism and Mutliethnic Education: Recent Outstanding Materials from Britain Selected Especially for American Teachers.

    ERIC Educational Resources Information Center

    Klein, Gillian; King, Edith W.

    This annotated list of resources for teachers is the product of several educators' efforts to promulgate the recent work being done in Britain in multicultural/multiethnic education, world studies, development studies and intercultural perspectives. An introduction cites appropriate texts for discussing race relations in the classroom. Section I,…

  5. Professional Capabilities for Twenty-First Century Creative Careers: Lessons from Outstandingly Successful Australian Artists and Designers

    ERIC Educational Resources Information Center

    Bridgstock, Ruth

    2013-01-01

    Artists and designers are positioned at the centre of the twenty-first century creative economy. In order to recognise and make the most of the opportunities afforded by this new era, artists and designers still require the creativity, disciplinary depth of knowledge and technical skills traditionally possessed by professionals in these…

  6. In vitro synthesis of linear α-1,3-glucan and chemical modification to ester derivatives exhibiting outstanding thermal properties

    PubMed Central

    Puanglek, Sakarin; Kimura, Satoshi; Enomoto-Rogers, Yukiko; Kabe, Taizo; Yoshida, Makoto; Wada, Masahisa; Iwata, Tadahisa

    2016-01-01

    Bio-based polymer is considered as one of potentially renewable materials to reduce the consumption of petroleum resources. We report herein on the one-pot synthesis and development of unnatural-type bio-based polysaccharide, α-1,3-glucan. The synthesis can be achieved by in vitro enzymatic polymerization with GtfJ enzyme, one type of glucosyltransferase, cloned from Streptococcus salivarius ATCC 25975 utilizing sucrose, a renewable feedstock, as a glucose monomer source, via environmentally friendly one-pot water-based reaction. The structure of α-1,3-glucan is completely linear without branches with weight-average molecular weight (Mw) of 700 kDa. Furthermore, acetate and propionate esters of α-1,3-glucan were synthesized and characterized. Interestingly, α-1,3-glucan acetate showed a comparatively high melting temperature at 339 °C, higher than that of commercially available thermoplastics such as PET (265 °C) and Nylon 6 (220 °C). Thus, the discovery of crystalline α-1,3-glucan esters without branches with high thermal stability and melting temperature opens the gate for further researches in the application of thermoplastic materials. PMID:27469976

  7. A Drying-Free, Water-Based Process for Fabricating Mixed-Matrix Membranes with Outstanding Pervaporation Performance.

    PubMed

    Deng, Yu-Heng; Chen, Jung-Tsai; Chang, Chia-Hao; Liao, Kuo-Sung; Tung, Kuo-Lun; Price, William E; Yamauchi, Yusuke; Wu, Kevin C-W

    2016-10-04

    Despite much progress in the development of mixed matrix membranes (MMMs) for many advanced applications, the synthesis of MMMs without particle agglomeration or phase separation at high nanofiller loadings is still challenging. In this work, we synthesized nanoporous zeolitic imidazole framework (ZIF-8) nanoparticles with a particle size of 60 nm and a pore size of 0.34 nm in water and directly added them into an aqueous solution of the organic polymer poly(vinyl alcohol) (PVA) without an intermediate drying process. This approach led to a high-quality PVA/ZIF-8 MMM with enhanced performance in ethanol dehydration by pervaporation. The permeability of this MMM is three times higher than that of pristine PVA, and the separation factor is nearly nine times larger than that of pristine PVA. The significantly improved separation performance was attributed to the increase in the fractional free volume in the membranes.

  8. A joint resolution to provide for the resolution of the outstanding issues in the current railway labor-management dispute.

    THOMAS, 112th Congress

    Sen. Enzi, Michael B. [R-WY

    2011-11-30

    12/01/2011 Read the second time. Placed on Senate Legislative Calendar under General Orders. Calendar No. 242. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  9. In vitro synthesis of linear α-1,3-glucan and chemical modification to ester derivatives exhibiting outstanding thermal properties

    NASA Astrophysics Data System (ADS)

    Puanglek, Sakarin; Kimura, Satoshi; Enomoto-Rogers, Yukiko; Kabe, Taizo; Yoshida, Makoto; Wada, Masahisa; Iwata, Tadahisa

    2016-07-01

    Bio-based polymer is considered as one of potentially renewable materials to reduce the consumption of petroleum resources. We report herein on the one-pot synthesis and development of unnatural-type bio-based polysaccharide, α-1,3-glucan. The synthesis can be achieved by in vitro enzymatic polymerization with GtfJ enzyme, one type of glucosyltransferase, cloned from Streptococcus salivarius ATCC 25975 utilizing sucrose, a renewable feedstock, as a glucose monomer source, via environmentally friendly one-pot water-based reaction. The structure of α-1,3-glucan is completely linear without branches with weight-average molecular weight (Mw) of 700 kDa. Furthermore, acetate and propionate esters of α-1,3-glucan were synthesized and characterized. Interestingly, α-1,3-glucan acetate showed a comparatively high melting temperature at 339 °C, higher than that of commercially available thermoplastics such as PET (265 °C) and Nylon 6 (220 °C). Thus, the discovery of crystalline α-1,3-glucan esters without branches with high thermal stability and melting temperature opens the gate for further researches in the application of thermoplastic materials.

  10. Implementation of Outstanding Electronic Transport in Polar Covalent Boron Nitride Atomic Chains: another Extraordinary Odd-Even Behaviour

    PubMed Central

    Xu, Xiaodong; Li, Weiqi; Liu, Linhua; Feng, Jikang; Jiang, Yongyuan; Tian, Wei Quan

    2016-01-01

    A theoretical investigation of the unique electronic transport properties of the junctions composed of boron nitride atomic chains bridging symmetric graphene electrodes with point-contacts is executed through non-equilibrium Green’s function technique in combination with density functional theory. Compared with carbon atomic chains, the boron nitride atomic chains have an alternative arrangement of polar covalent B-N bonds and different contacts coupling electrodes, showing some unusual properties in functional atomic electronic devices. Remarkably, they have an extraordinary odd-even behavior of conductivity with the length increase. The rectification character and negative differential resistance of nonlinear current-voltage characteristics can be achieved by manipulating the type of contacts between boron nitride atomic chains bridges and electrodes. The junctions with asymmetric contacts have an intrinsic rectification, caused by stronger coupling in the C-N contact than the C-B contact. On the other hand, for symmetric contact junctions, it is confirmed that the transport properties of the junctions primarily depend on the nature of contacts. The junctions with symmetric C-N contacts have higher conductivity than their C-B contacts counterparts. Furthermore, the negative differential resistances of the junctions with only C-N contacts is very conspicuous and can be achieved at lower bias. PMID:27211110

  11. Honoring Byung Wook Yoon, Ph.D for his outstanding service on behalf of the Korean American community.

    THOMAS, 112th Congress

    Rep. Waters, Maxine [D-CA-35

    2012-03-27

    03/27/2012 Referred to the House Committee on Oversight and Government Reform. (text of measure as introduced: CR E493) (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  12. Tailoring the interface of an immiscible polymer blend by a mutually miscible homopolymer grafted onto graphene oxide: outstanding mechanical properties.

    PubMed

    Kar, Goutam Prasanna; Biswas, Sourav; Bose, Suryasarathi

    2015-01-21

    A unique strategy was adopted here to improve the compatibility between the components of an immiscible polymer blend and strengthen the interface. PMMA, a mutually miscible polymer to both PVDF and ABS, improved the compatibility between the phases by localizing at the blends interface. This was supported by the core-shell formation with PMMA as the shell and ABS as the core as observed from the SEM micrographs. This phenomenon was strongly contingent on the concentration of PMMA in the blends. This strategy was further extended to localize graphene oxide (GO) sheets at the blends interface by chemically coupling it to PMMA (PMMA-g-GO). A dramatic increment of ca. 84% in the Young's modulus and ca. 124% in the yield strength was observed in the presence of PMMA-g-GO with respect to the neat blends. A simultaneous increment in both the strength and the modulus was observed in the presence of PMMA-g-GO whereas, only addition of GO resulted in a moderate improvement in the yield strength. This study reveals that a mutually miscible polymer can render compatibility between the immiscible pair and can improve the stress transfer at the interface.

  13. Implementation of Outstanding Electronic Transport in Polar Covalent Boron Nitride Atomic Chains: another Extraordinary Odd-Even Behaviour.

    PubMed

    Xu, Xiaodong; Li, Weiqi; Liu, Linhua; Feng, Jikang; Jiang, Yongyuan; Tian, Wei Quan

    2016-05-23

    A theoretical investigation of the unique electronic transport properties of the junctions composed of boron nitride atomic chains bridging symmetric graphene electrodes with point-contacts is executed through non-equilibrium Green's function technique in combination with density functional theory. Compared with carbon atomic chains, the boron nitride atomic chains have an alternative arrangement of polar covalent B-N bonds and different contacts coupling electrodes, showing some unusual properties in functional atomic electronic devices. Remarkably, they have an extraordinary odd-even behavior of conductivity with the length increase. The rectification character and negative differential resistance of nonlinear current-voltage characteristics can be achieved by manipulating the type of contacts between boron nitride atomic chains bridges and electrodes. The junctions with asymmetric contacts have an intrinsic rectification, caused by stronger coupling in the C-N contact than the C-B contact. On the other hand, for symmetric contact junctions, it is confirmed that the transport properties of the junctions primarily depend on the nature of contacts. The junctions with symmetric C-N contacts have higher conductivity than their C-B contacts counterparts. Furthermore, the negative differential resistances of the junctions with only C-N contacts is very conspicuous and can be achieved at lower bias.

  14. The Acquisition of Word Meaning from Context by Children of High and Low Ability. Outstanding Dissertation Monograph 1985.

    ERIC Educational Resources Information Center

    McKeown, Margaret Gentile

    A study proposed a sequenced process for inferring word meaning from context in order to investigate experimentally where, within the process, differences between learners of varying skill occur, and to discover the kinds of information students need in order to acquire vocabulary most effectively. Six five-step tasks, each designed around an…

  15. [Outstanding scientist-investigator, S. S. Brukhonenko--founder of artificial circulation method and developer of first in the world autoejector].

    PubMed

    Pavlovskiĭ, L N

    2009-01-01

    The article presents data about well-known Russian physician-physiologist and researcher Sergey Sergeeviche Brukhonenko. The hard way passed by the scientist-researcher from completion of artificial breath technique to the method of artificial blood circulation developed by him and development of the first in the world--artificial blood circulation device--autoejector is shown in the article.

  16. Annual Progress in Child Psychiatry and Child Development 1994: A Selection of the Year's Outstanding Contributions to the Understanding and Treatment of the Normal and Disturbed Child.

    ERIC Educational Resources Information Center

    Hertzig, Margaret E., Ed.; Farber, Ellen A., Ed.

    This volume provides the most up-to-date research and scholarship available in the field of child psychiatry and child development. The 20 articles are: (1) "A Meta-Analysis of Infant Habituation and Recognition Memory Performance as Predictors of Later IQ" (McCall and Carriger); (2) "The Relations of Emotionality and Regulation to…

  17. B field in OB stars (BOB): The outstandingly strong magnetic field in the evolved He-strong star CPD -62° 2124

    NASA Astrophysics Data System (ADS)

    Castro, N.; Fossati, L.; Hubrig, S.; Järvinen, S. P.; Przybilla, N.; Nieva, M.-F.; Ilyin, I.; Carroll, T. A.; Schöller, M.; Langer, N.; Schneider, F. R. N.; Simón-Díaz, S.; Morel, T.; Butler, K.; BOB Collaboration

    2017-01-01

    The origin and evolution of magnetism in OB stars is far from being well understood. With approximately 70 magnetic OB stars known, any new object with unusual characteristics may turn out to be a key piece of the puzzle. We report the detection of an exceptionally strong magnetic field in the He-strong B2IV star CPD -62° 2124. Spectropolarimetric FORS2 and HARPSpol observations were analysed by two independent teams and procedures, concluding on a strong longitudinal magnetic field of approximately 5.2 kG. The quantitative characterisation of the stellar atmosphere yields an effective temperature of 23 650 ± 250 K, a surface gravity of 3.95 ± 0.10 dex and a surface helium fraction of 0.35 ± 0.02 by number. The metal composition is in agreement with the cosmic abundance standard, except for Mg, Si and S, which are slightly non-solar. The strong and broad ( 300 km s-1) disc-like emission displayed by the Hα line suggests a centrifugal magnetosphere supported by the strong magnetic field. Our results imply that CPD -62° 2124 is an early B-type star hosting one of the strongest magnetic fields discovered to date, and one of the most evolved He-strong stars known, with a fractional main-sequence lifetime of approximately 0.6. Based on observations made with ESO telescopes at the La Silla and Paranal observatories under programme ID 191.D-0255(G,I).

  18. A new view of solar coronal mass ejections with the Heliophysics System Observatory (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Moestl, Christian

    2016-04-01

    Solar coronal mass ejections (CMEs) play a pivotal role in solar, heliospheric and planetary physics because they lead to connections of plasma phenomena from the Sun to the planets throughout the solar system. CMEs drive the strongest geomagnetic storms, fill the heliosphere with energetic particles, illuminate planetary skies with aurorae, modulate cosmic rays on planetary surfaces, and lead to erosion of planetary atmospheres over long time scales. Thus, even for studying the detection of life on exoplanets, the role of possible stellar CMEs should not be neglected. However, besides the simple fascination of studying the biggest explosions in the solar system, they are of increasingly high practical significance concerning risk mitigation of natural desasters and the protection of our common wealth. As the impact of a "super-CME", a rare but possible event, may affect the entire planet Earth, coordinated international efforts for their fundamental understanding, as well as building dedicated space weather missions for daily forecasts is necessary. There is a chance of a CME on the order of a Carrington event, with a minimum Dst of about -1000 nT, impacting Earth once every 100 years - or a 10% chance in a given solar cycle. An impact of such a super-CME is expected to cause e.g. wide-spread electricity blackouts and satellite failures. In the last 10 years, the field has made major advantages in understanding how CMEs evolve from the Sun to the planets. Because of the extension of CMEs on the order of 60-100 degree heliospheric longitude and radial sizes around 0.1-0.2 AU, multipoint imaging and in situ observations are inevitably necessary to understand basic CME physics. To this end, I will show data, as provided by the Heliophysics System Observatory (HSO), and their interpretation with various modeling effors. The HSO can be understood as a web of sensors placed throughout the heliosphere, consisting of spacecraft such as STEREO, Wind, ACE, Venus Express and MESSENGER. They provide, mainly with their magnetometers, multipoint in situ observations of CMEs. The STEREO mission plays a key role, as it has provided for the first time data of heliospheric imagers far away from the Sun-Earth line. This data set now covers almost a full solar cycle, bridging the observational gap between the Sun and the terrestrial planets. This means that we are now entering a new era where big catalogues of solar and heliospheric events are routinely available. I further focus on unsolved problems in the field, such as finding connections between coronagraph, heliospheric imaging and in situ CME detections, and understanding the global shape of the CME shock and magnetic flux rope. The biggest problem concerns the prediction of the CME core magnetic field, and in particular its Bz profile, which is the main reason why space weather prediction is still quite inaccurate. Finally, the upcoming missions Solar Orbiter and Solar Probe Plus are bound to disruptively transform the field in the upcoming years with out-of-ecliptic heliospheric imaging and in situ observations of the Sun's corona.

  19. A resolution celebrating the outstanding athletic accomplishments of the University of Findlay men's basketball team for winning the National Collegiate Athletic Association Division II Championship.

    THOMAS, 111th Congress

    Sen. Brown, Sherrod [D-OH

    2009-04-21

    04/21/2009 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S4522; text as passed Senate: CR S4522; text of measure as introduced: CR S4520) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  20. [Efim Ivanovich Smirnov--an outstanding founder of the military medicine and civil health care (to the 110th anniversary of birth)].

    PubMed

    Maksimov, I B; Krylov, N L

    2014-10-01

    In October 2014 we celebrate the 110th anniversary of the birth of Chief of the Main Military Medical Administration of the People's Commissariat of Defense, Minister of Health of the USSR, Hero of Socialist Labor, Member of the Academy of Medical Sciences of the USSR, Colonel-General of the Medical Service Efim Smirnov (1904-1989). The article highlights biographical information about him.

  1. Congratulating the six-time Defending Mid-American Conference Champion Bowling Green State University women's basketball team on another outstanding and record-setting season.

    THOMAS, 111th Congress

    Rep. Latta, Robert E. [R-OH-5

    2010-03-25

    04/30/2010 Referred to the Subcommittee on Higher Education, Lifelong Learning, and Competitiveness. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  2. Outstanding performance of configuration interaction singles and doubles using exact exchange Kohn-Sham orbitals in real-space numerical grid method.

    PubMed

    Lim, Jaechang; Choi, Sunghwan; Kim, Jaewook; Kim, Woo Youn

    2016-12-14

    To assess the performance of multi-configuration methods using exact exchange Kohn-Sham (KS) orbitals, we implemented configuration interaction singles and doubles (CISD) in a real-space numerical grid code. We obtained KS orbitals with the exchange-only optimized effective potential under the Krieger-Li-Iafrate (KLI) approximation. Thanks to the distinctive features of KLI orbitals against Hartree-Fock (HF), such as bound virtual orbitals with compact shapes and orbital energy gaps similar to excitation energies; KLI-CISD for small molecules shows much faster convergence as a function of simulation box size and active space (i.e., the number of virtual orbitals) than HF-CISD. The former also gives more accurate excitation energies with a few dominant configurations than the latter, even with many more configurations. The systematic control of basis set errors is straightforward in grid bases. Therefore, grid-based multi-configuration methods using exact exchange KS orbitals provide a promising new way to make accurate electronic structure calculations.

  3. The Florida Prostate Cancer Research Training Opportunities for Outstanding Leaders (ReTOOL (registered trademark)) Program: Creating Opportunities for Minority HBCU Students

    DTIC Science & Technology

    2013-03-01

    psychological Factors Related to Prostate Cancer Dr. Folakemi Odedina ReTOOL Exam 2:00-3:00pm 3:00-4:00pm Prostate Cancer : Epidemiology...Polymorphisms in Prostate Cancer Dr. Zhongzhen Nie CGRC room 491 Socio- psychological Factors Related to Prostate Cancer Dr. Folakemi Odedina...45 Moffitt Cancer Center 1:30 – 1:45 pm S-18 Epigenetic Modulators Target Cancer Stem Cells and Hormone-refractory

  4. [Outstanding Russian scientist, teacher and social activist (to the 170th anniversary of the birth of prof. A.P. Dobroslavin)].

    PubMed

    Kuznetsov, S M; Terent'ev, L P; Lizunov, Iu V

    2013-04-01

    The formation and development of hygiene in the country is associated with activity of many prominent scientists-hygienists, and among them a place of honor justly belongs to Alexei Petrovich Dobroslavin--PhD, full professor, State Councillor, who in October 2012 would have been 170 years since the birth. He is the founder of the science of domestic hygiene and self-discipline. Hygienist talented researcher, a pioneer of military hygiene in Russia and known public figure, in 18 years of activity of A. P. Dobroslavin performed herculean research, educational, social, and practical work. Creatively continuing and developing the noble humanist traditions and ideas of professor A. P. Dobroslavin and he created the original and largest school of russian hygienists, modern military hygiene adds and multiplies them in order to preserve and promote the health of population and military.

  5. Outstanding laser damage threshold in Li2MnGeS4 and tunable optical nonlinearity in diamond-like semiconductors.

    PubMed

    Brant, Jacilynn A; Clark, Daniel J; Kim, Yong Soo; Jang, Joon I; Weiland, Ashley; Aitken, Jennifer A

    2015-03-16

    The new Li2MnGeS4 and Li2CoSnS4 compounds result from employing a rational and simple design strategy that guides the discovery of diamond-like semiconductors (DLSs) with wide regions of optical transparency, high laser damage threshold, and efficient second-order optical nonlinearity. Single-crystal X-ray diffraction was used to solve and refine the crystal structures of Li2MnGeS4 and Li2CoSnS4, which crystallize in the noncentrosymmetric space groups Pna21 and Pn, respectively. Synchrotron X-ray powder diffraction (SXRPD) was used to assess the phase purity, and diffuse reflectance UV-vis-NIR spectroscopy was used to estimate the bandgaps of Li2MnGeS4 (Eg = 3.069(3) eV) and Li2CoSnS4 (Eg = 2.421(3) eV). In comparison with Li2FeGeS4, Li2FeSnS4, and Li2CoSnS4 DLSs, Li2MnGeS4 exhibits the widest region of optical transparency (0.60-25 μm) and phase matchability (≥1.6 μm). All four of the DLSs exhibit second-harmonic generation and are compared with the benchmark NLO material, AgGaSe2. Most remarkably, Li2MnGeS4 does not undergo two- or three-photon absorption upon exposure to a fundamental Nd:YAG beam (λ = 1.064 μm) and exhibits a laser damage threshold > 16 GW/cm(2).

  6. Outstanding performance of configuration interaction singles and doubles using exact exchange Kohn-Sham orbitals in real-space numerical grid method

    NASA Astrophysics Data System (ADS)

    Lim, Jaechang; Choi, Sunghwan; Kim, Jaewook; Kim, Woo Youn

    2016-12-01

    To assess the performance of multi-configuration methods using exact exchange Kohn-Sham (KS) orbitals, we implemented configuration interaction singles and doubles (CISD) in a real-space numerical grid code. We obtained KS orbitals with the exchange-only optimized effective potential under the Krieger-Li-Iafrate (KLI) approximation. Thanks to the distinctive features of KLI orbitals against Hartree-Fock (HF), such as bound virtual orbitals with compact shapes and orbital energy gaps similar to excitation energies; KLI-CISD for small molecules shows much faster convergence as a function of simulation box size and active space (i.e., the number of virtual orbitals) than HF-CISD. The former also gives more accurate excitation energies with a few dominant configurations than the latter, even with many more configurations. The systematic control of basis set errors is straightforward in grid bases. Therefore, grid-based multi-configuration methods using exact exchange KS orbitals provide a promising new way to make accurate electronic structure calculations.

  7. [Nikolai Illarionovich Kozlov--a scientist, a doctor, an outstanding organizer of Military Medicine (To the 200th anniversary of the birth)].

    PubMed

    Egorysheva, I V

    2014-11-01

    To Kozlov N.I. (1814-1889) belong numerous achievements in the organization of military medical unit during the Crimean (1853-1856) and the Russian-Turkish (1877-1878) wars, the introduction of women's medical education in Russia, establishment of an improvement system for the military doctors, edition for their medical guidelines, the organization of military health care in Russia.

  8. Morphology-controlled construction of hierarchical hollow hybrid SnO2@TiO2 nanocapsules with outstanding lithium storage.

    PubMed

    Zhou, Linzong; Guo, Hong; Li, Tingting; Chen, Weiwei; Liu, Lixiang; Qiao, Jinli; Zhang, Jiujun

    2015-10-20

    A novel synthesis containing microwave-assisted HCl etching reaction and precipitating reaction is employed to prepare hierarchical hollow SnO2@TiO2 nanocapsules for anode materials of Li-ion batteries. The intrinsic hollow nanostructure can shorten the lengths for both ionic and electronic transport, enlarge the electrode surface areas, and improving accommodation of the anode volume change during Li insertion/extraction cycling. The hybrid multi-elements in this material allow the volume change to take place in a stepwise manner during electrochemical cycling. In particular, the coating of TiO2 onto SnO2 can enhance the electronic conductivity of hollow SnO2 electrode. As a result, the as-prepared SnO2@TiO2 nanocapsule electrode exhibits a stably reversible capacity of 770 mA hg(-1) at 1 C, and the capacity retention can keep over 96.1% after 200 cycles even at high current rates. This approach may shed light on a new avenue for the fast synthesis of hierarchical hollow nanocapsule functional materials for energy storage, catalyst and other new applications.

  9. Assimilation of high-frequency radar surface currents measurements to optimize tidal boundary conditions and wind forcing (Outstanding Young Scientist Lecture)

    NASA Astrophysics Data System (ADS)

    Barth, Alexander; Alvera-Azcárate, Aida; Gurgel, Klaus-Werner; Staneva, Joanna; Beckers, Jean-Marie; Port, Alexander; Stanev, Emil

    2010-05-01

    An ensemble smoother scheme is presented to assimilate high-frequency (HF) radar surface currents to improve tidal boundary conditions and wind forcings of a circulation model of the German Bight. To create an ensemble of dynamically realistic tidal boundary conditions, a cost function is formulated which is directly related to the probability of each perturbation. This cost function ensures that the perturbations are spatially smooth and that the structure of the perturbations satisfies approximately the harmonic linearized shallow water equations. Based on those perturbations an ensemble simulation is carried out using the full three-dimensional General Estuarine Ocean Model (GETM). Optimized boundary values are obtained using all observations within the assimilation period using the covariances of the ensemble simulation. The approach acts like a smoother scheme since past and future observations are taken into account. The final analysis is obtained by rerunning the model using the optimal perturbation of the boundary conditions. The analyzed model solution satisfies thus the model equations exactly and does not suffer from spurious adjustments often observed with sequential assimilation schemes. Model results are also compared to independent tide gage data. The assimilation also reduces the model error compared to those sea level observations. The same scheme is also used to correct surface winds. Surface winds are crucial for accurately modeling the marine circulation in coastal waters. The method is validated directly by comparing the analyzed wind speed to in situ measurements and indirectly by assessing the impact of the corrected winds on sea surface temperature (SST) relative to satellite SST.

  10. Outstanding challenges in the seismological study of volcanic processes: Results from recent U.S. and European community-wide discussion workshops

    NASA Astrophysics Data System (ADS)

    Roman, D. C.; Rodgers, M.; Mather, T. A.; Power, J. A.; Pyle, D. M.

    2014-12-01

    Observations of volcanically induced seismicity are essential for eruption forecasting and for real-time and near-real-time warnings of hazardous volcanic activity. Studies of volcanic seismicity and of seismic wave propagation also provide critical understanding of subsurface magmatic systems and the physical processes associated with magma genesis, transport, and eruption. However, desipite significant advances in recent years, our ability to successfully forecast volcanic eruptions and fully understand subsurface volcanic processes is limited by our current understanding of the source processes of volcano-seismic events, the effects on seismic wave propagation within volcanic structures, limited data, and even the non-standardized terminology used to describe seismic waveforms. Progress in volcano seismology is further hampered by inconsistent data formats and standards, lack of state-of-the-art hardware and professional technical staff, as well as a lack of widely adopted analysis techniques and software. Addressing these challenges will not only advance scientific understanding of volcanoes, but also will lead to more accurate forecasts and warnings of hazardous volcanic eruptions that would ultimately save lives and property world-wide. Two recent workshops held in Anchorage, Alaska, and Oxford, UK, represent important steps towards developing a relationship among members of the academic community and government agencies, focused around a shared, long-term vision for volcano seismology. Recommendations arising from the two workshops fall into six categories: 1) Ongoing and enhanced community-wide discussions, 2) data and code curation and dissemination, 3) code development, 4) development of resources for more comprehensive data mining, 5) enhanced strategic seismic data collection, and 6) enhanced integration of multiple datasets (including seismicity) to understand all states of volcano activity through space and time. As presented sequentially above, these steps can be regarded as a road map for galvanizing and strengthening the volcano seismological community to drive new scientific and technical progress over the next 5-10 years.

  11. An observational study of excellence in science teaching based on a sample of outstanding science teachers: Methods of teaching excellence in science

    NASA Astrophysics Data System (ADS)

    Mazmanian, Victor

    The aim of this study was to document the teaching and learning strategies utilized by a group of science teachers, who were recipients of the Presidential Awards for Excellence in Science and Math Teaching (PAESMT). Six science teachers were observed in their classrooms while they were teaching. Thirty-six lessons were analyzed using a framework of categories of analysis to determine the special traits and common exceptional methods that these teachers had. The findings confirmed the ones predicted by theoretical frameworks of cognitive science and current models of constructivism in teaching. The results of the study supported the importance of the role of the teacher as an active agent in construction of knowledge while also providing sufficient student freedom of exploration and self-realization as needed to grow intellectually and develop skills in metacognition (e.g., reflective critical thought, and learning how to learn). Further, the analyses revealed the complementarity between the teacher's methodology and the processes of student cognition. Some misconceptions that commonly appeared among the observed science students were also documented. The study also explored possible methods to rectify these misconceptions, based in part on prior publications and also on observations of the PAESMT teachers' strategies. The results of this study showed the unique methods of teaching employed by PAESMT recipients to an extent that reached beyond the results of previous research, which published traits and characteristics of such teachers. This study determined the common traits among these teachers and identified their common methods of teaching science. The teacher's role as a facilitator was documented repeatedly among these award-winning teachers and was determined to be an integral tool for the students' successful knowledge construction and development of accurate scientific ways of thinking.

  12. Integrating surface and mantle constraints for palaeo-ocean evolution: a tour of the Arctic and adjacent regions (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Shephard, Grace E.

    2016-04-01

    Plate tectonic reconstructions heavily rely on absolute motions derived from hotspot trails or palaeomagnetic data and ocean-floor magnetic anomaies and fracture-zone geometries to constrain the detailed history of ocean basins. However, as oceanic lithosphere is progressively recycled into the mantle, kinematic data regarding the history of these now extinct-oceans is lost. In order to better understand their evolution, novel workflows, which integrate a wide range of complementary yet independent geological and geophysical datasets from both the surface and deep mantle, must be utilised. In particular, the emergence of time-dependent, semi or self-consistent geodynamic models of ever-increasing temporal and spatial resolution are revealing some critical constraints on the evolution and fate of oceanic slabs. The tectonic evolution of the circum-Arctic is no exception; since the breakup of Pangea, this enigmatic region has seen major plate reorganizations and the opening and closure of several ocean basins. At the surface, a myriad of potential kinematic scenarios including polarity, timing, geometry and location of subduction have emerged, including for systems along continental margins and intra-oceanic settings. Furthermore, recent work has reignited a debate about the origins of 'anchor' slabs, such as the Farallon and Mongol-Okhotsk slabs, which have been used to refine absolute plate motions. Moving to the mantle, seismic tomography models reveal a region peppered with inferred slabs, however assumptions about their affinities and subduction location, timing, geometry and polarity are often made in isolation. Here, by integrating regional plate reconstructions with insights from seismic tomography, satellite derived gravity gradients, slab sinking rates and geochemistry, I explore some Mesozoic examples from the palaeo-Arctic, northern Panthalassa and western margin of North America, including evidence for a discrete and previously undescribed slab under present-day Greenland. While regional in focus, the methods and insights described have global applications and illustrate the power of an integrated approach.

  13. Early 21st-Century Mass loss of the North-Atlantic Glaciers and Ice Caps (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Wouters, Bert; Ligtenberg, Stefan; Moholdt, Geir; Gardner, Alex S.; Noel, Brice; Kuipers Munneke, Peter; van den Broeke, Michiel; Bamber, Jonathan L.

    2016-04-01

    Historically, ice loss from mountain glaciers and ice caps has been one of the largest contributors to sea level rise over the last century. Of particular interest are the glaciers and ice caps in the North-Atlantic region of the Arctic. Despite the cold climate in this area, considerable melting and runoff occurs in summer. A small increase in temperature will have an immediate effect on these processes, so that a large change in the Arctic ice volume can be expected in response to the anticipated climate change in the coming century. Unfortunately, direct observations of glaciers are sparse and are biased toward glaciers systems in accessible, mostly maritime, climate conditions. Remote sensing is therefore essential to monitor the state of the the North-Atlantic glaciers and ice caps. In this presentation, we will discuss the progress that has been made in estimating the ice mass balance of these regions, with a particular focus on measurements made by ESA's Cryosat-2 radar altimeter mission (2010-present). Compared to earlier altimeter mission, Cryosat-2 provides unprecedented coverage of the cryosphere, with a resolution down to 1 km or better and sampling at monthly intervals. Combining the Cryosat-2 measurements with the laser altimetry data from ICESat (2003-2009) gives us a 12 yr time series of glacial mass loss in the North Atlantic. We find excellent agreement between the altimetry measurements and independent observations by the GRACE mission, which directly 'weighs' the ice caps, albeit at a much lower resolution. Mass loss in the region has increased from 120 Gigatonnes per year in 2003-2009 to roughly 140 Gt/yr in 2010-2014, with an important contribution from Greenland's peripheral glaciers and ice caps. Importantly, the mass loss is not stationary, but shows large regional interannual variability, with mass loss shifting between eastern and western regions from year to year. Comparison with regional climate models shows that these shifts can be explained by changes in surface mass balance processes, highlighting the sensitivity of the glaciers and ice caps to changes in the atmospheric circulation and underscoring the need for long-term observations of the region.

  14. A resolution recognizing the Los Angeles Lakers on their 2010 National Basketball Association Championship and congratulating the players, coaches, and staff for their outstanding achievements.

    THOMAS, 111th Congress

    Sen. Feinstein, Dianne [D-CA

    2010-06-23

    06/23/2010 Referred to the Committee on the Judiciary. (text of measure as introduced: CR S5323) (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  15. A resolution congratulating Sporting Kansas City for an outstanding 2013 season in Major League Soccer and for winning the Major League Soccer Cup 2013.

    THOMAS, 113th Congress

    Sen. Moran, Jerry [R-KS

    2013-12-20

    12/20/2013 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S9114-9115; text as passed Senate: CR S9109) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  16. Twenty New Ways To Help Our Colleges: Outstanding Entries From the Annual Awards Program for Innovations in Corporate Support of Higher Education.

    ERIC Educational Resources Information Center

    Wilson, William L.

    Innovative programs in higher education that have been supported by American business during 1978-80 are described. Programs that have been selected for overall excellence, as part of the awards program sponsored by the Council for Financial Aid to Education, are examined, as are programs judged to have merit. The following award-winning programs…

  17. The Impact on Education for Librarianship and Information Studies of the Bologna Process and Related European Commission Programmes--and Some Outstanding Issues in Europe and Beyond

    ERIC Educational Resources Information Center

    Johnson, Ian M.

    2013-01-01

    The Bologna Declaration of 1999 is the basis for continuing reforms in higher education intended to support international mobility in employment within the European Union. This paper describes the standardised structure and nomenclature for courses that have been implemented, together with a credit transfer system, a quality assurance regime, and…

  18. Morphology-controlled construction of hierarchical hollow hybrid SnO2@TiO2 nanocapsules with outstanding lithium storage

    PubMed Central

    Zhou, Linzong; Guo, Hong; Li, Tingting; Chen, Weiwei; Liu, Lixiang; Qiao, Jinli; Zhang, Jiujun

    2015-01-01

    A novel synthesis containing microwave-assisted HCl etching reaction and precipitating reaction is employed to prepare hierarchical hollow SnO2@TiO2 nanocapsules for anode materials of Li-ion batteries. The intrinsic hollow nanostructure can shorten the lengths for both ionic and electronic transport, enlarge the electrode surface areas, and improving accommodation of the anode volume change during Li insertion/extraction cycling. The hybrid multi-elements in this material allow the volume change to take place in a stepwise manner during electrochemical cycling. In particular, the coating of TiO2 onto SnO2 can enhance the electronic conductivity of hollow SnO2 electrode. As a result, the as-prepared SnO2@TiO2 nanocapsule electrode exhibits a stably reversible capacity of 770 mA hg−1 at 1 C, and the capacity retention can keep over 96.1% after 200 cycles even at high current rates. This approach may shed light on a new avenue for the fast synthesis of hierarchical hollow nanocapsule functional materials for energy storage, catalyst and other new applications. PMID:26482415

  19. Outstanding H2 sensing performance of Pd nanoparticle-decorated ZnO nanorod arrays and the temperature-dependent sensing mechanisms.

    PubMed

    Chang, Chia-Ming; Hon, Min-Hsiung; Leu, Ing-Chi

    2013-01-01

    The nearly monodispersed Pd nanoparticles with controllable density on ZnO nanorod arrays were prepared by the unique PVP-mediated photochemical deposition (PCD). The changes in morphology and dispersion of Pd on ZnO surface are ascribed to the stabilizing property and self-assembly characteristic of PVP being exploited during PCD. There are three temperature-dependent H(2) sensing mechanisms in those Pd/ZnO NRs, including general oxygen adsorption/desorption mode within 200-300 °C, surface conductivity mode at 60-120 °C and palladium hydride (PdH(x)) formation at room temperature, which causes a significant discrepancy in sensitivity variations as a function of Pd density. It is also verified that the electronic sensitization related to the transition of Pd(2+)/Pd(0) redox couple predominates the promoting mechanism in Pd/ZnO NRs used for sensing H(2) at 200-300 °C. Therefore, the gas sensitivity to 500 ppm H(2) of Pd/ZnO NRs can be significantly improved by around 553-fold (S, R(a)/R(g) = 1106) at 260 °C through decorating an adequate amount of discrete Pd nanoparticles instead of the Pd clusters, moreover, the corresponding sensitivity at room temperature is 16.9 that is superior to some promising devices reported in the literatures.

  20. Congratulating the 2009-2010 University of Maryland Men's Basketball Team, Greivis Vasquez, and Coach Gary Williams on an outstanding season.

    THOMAS, 111th Congress

    Rep. Hoyer, Steny H. [D-MD-5

    2010-03-16

    04/30/2010 Referred to the Subcommittee on Higher Education, Lifelong Learning, and Competitiveness. (All Actions) Tracker: This bill has the status Passed HouseHere are the steps for Status of Legislation:

  1. Er3+-Tm3+-Yb3+:CaMoO4 phosphor as an outstanding upconversion-based optical temperature sensor and optical heater

    NASA Astrophysics Data System (ADS)

    Dey, Riya; Rai, Vineet Kumar

    2017-03-01

    Optical temperature sensing in Er3+-Tm3+-Yb3+codoped CaMoO4 phosphor prepared by chemical co-precipitation route based on the near infrared (NIR) to green upconversion emission from Er3+ ion is reported. The variation with respect to external temperature in emission intensity ratio of the green emissions around 530 nm and 552 nm, corresponding to the 2H11/2 → 4I15/2 and 4S3/2 → 4I15/2 transitions respectively, under 980 nm excitation has been studied in detail, to report the sensing property of the prepared material; the maximum sensor sensitivity ∼0.0182 K‑1 was attained at 413 K. The laser induced optical heating within the prepared phosphor has been explored and the heat generation caused by the laser effect has been verified by comparison of experimental and calculated data.

  2. The effect of water structure and solute hydration on the kinetics of mineral growth and dissolution (Arne Richter Award for Outstanding Young Scientists)

    NASA Astrophysics Data System (ADS)

    Ruiz-Agudo, E.; Putnis, C. V.; Putnis, A.

    2012-04-01

    Classical crystal growth theory relates growth and dissolution rates to the degree of supersaturation. However, the solution composition may also affect the growth rate of carbonate minerals, via the Ca2+ to CO32- concentration ratio (e.g. Perdikouri et al., 2009; Stack and Grantham, 2010), ionic strength (e.g. Ruiz-Agudo et al. 2010) or the presence of organic matter (Hoch et al., 2000). For this reason, the influence of these parameters on the kinetics of mineral growth and dissolution has generated a considerable amount of research in the last decade. In particular, effects of both inorganic and organic impurities on mineral growth and dissolution have been frequently reported in the literature. Commonly, water in contact with rock forming minerals, contains significant and variable amounts of ions in solution. The effect of such ions on dissolution and growth rates has been traditionally ascribed to changes in solubility. However, experimental studies performed on different minerals have shown that the dependence of growth or dissolution rates on ionic strength is complex, and that the effect of ionic strength is not independent of the ionic species producing it. Here, we report investigations aimed at addressing the basic hypothesis that mineral growth and dissolution is governed by complex interactions between solvent structure, surface hydration and the ion solvation environment induced by the presence of electrolytes. It is proposed that any factor affecting ion solvation should alter growth and dissolution rates. These results have opened the possibility of a new understanding of very diverse phenomena in geochemistry and demonstrate the need for the inclusion of this "hydration effect" in the development of predictive models that describe crystal growth and dissolution in complex systems, such as those found in nature. Furthermore, we can hypothesise that ion-assisted dehydration of trace and minor element ions could occur in biological systems, thus affecting their incorporation and isotopic fractionation, providing interesting insights into the possible origin of anomalies found in systems used as environmental proxies and the so-called "vital effects".

  3. Teaching Approaches of Beginning Teachers for Jewish Studies in Israeli "Mamlachti" Schools: A Case Study of a Jewish Education Teachers' Training Program for Outstanding Students

    ERIC Educational Resources Information Center

    Katzin, Ori

    2015-01-01

    This article presents findings from a longitudinal qualitative study that examined teaching approaches of neophyte teachers in Israel during their 4-year exclusive teachers' training program for teaching Jewish subjects and first two years of teaching. The program wanted to promote change in secular pupils' attitudes toward Jewish subjects. We…

  4. The Genome of the Fungal-Interactive Soil Bacterium Burkholderia terrae BS001—A Plethora of Outstanding Interactive Capabilities Unveiled

    PubMed Central

    Haq, Irshad Ul; Graupner, Katharina; Nazir, Rashid; van Elsas, Jan Dirk

    2014-01-01

    Burkholderia terrae strain BS001, obtained as an inhabitant of the mycosphere of Laccaria proxima (a close relative of Lyophyllum sp. strain Karsten), actively interacts with Lyophyllum sp. strain Karsten. We here summarize the remarkable ecological behavior of B. terrae BS001 in the mycosphere and add key data to this. Moreover, we extensively analyze the approximately 11.5-Mb five-replicon genome of B. terrae BS001 and highlight its remarkable features. Seventy-nine regions of genomic plasticity (RGP), that is, 16.48% of the total genome size, were found. One 70.42-kb RGP, RGP76, revealed a typical conjugal element structure, including a full type 4 secretion system. Comparative analyses across 24 related Burkholderia genomes revealed that 95.66% of the total BS001 genome belongs to the variable part, whereas the remaining 4.34% constitutes the core genome. Genes for biofilm formation and several secretion systems, under which a type 3 secretion system (T3SS), were found, which is consistent with the hypothesis that T3SSs play a role in the interaction with Lyophyllum sp. strain Karsten. The high number of predicted metabolic pathways and membrane transporters suggested that strain BS001 can take up and utilize a range of sugars, amino acids and organic acids. In particular, a unique glycerol uptake system was found. The BS001 genome further contains genetic systems for the degradation of complex organic compounds. Moreover, gene clusters encoding nonribosomal peptide synthetases (NRPS) and hybrid polyketide synthases/NRPS were found, highlighting the potential role of secondary metabolites in the ecology of strain BS001. The patchwork of genetic features observed in the genome is consistent with the notion that 1) horizontal gene transfer is a main driver of B. terrae BS001 adaptation and 2) the organism is very flexible in its ecological behavior in soil. PMID:24923325

  5. 21 CFR 310.544 - Drug products containing active ingredients offered over-the-counter (OTC) for use as a smoking...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., povidone-silver nitrate, quinine ascorbate, silver acetate, silver nitrate, and thymol have been present as... (terpeneless), licorice root extract, menthol, methyl salicylate, quinine ascorbate, silver nitrate, and/or... Lobelia inflata herb), povidone-silver nitrate, silver acetate, or any other ingredients...

  6. 21 CFR 310.544 - Drug products containing active ingredients offered over-the-counter (OTC) for use as a smoking...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ..., povidone-silver nitrate, quinine ascorbate, silver acetate, silver nitrate, and thymol have been present as... (terpeneless), licorice root extract, menthol, methyl salicylate, quinine ascorbate, silver nitrate, and/or... Lobelia inflata herb), povidone-silver nitrate, silver acetate, or any other ingredients...

  7. 21 CFR 310.544 - Drug products containing active ingredients offered over-the-counter (OTC) for use as a smoking...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ..., povidone-silver nitrate, quinine ascorbate, silver acetate, silver nitrate, and thymol have been present as... (terpeneless), licorice root extract, menthol, methyl salicylate, quinine ascorbate, silver nitrate, and/or... Lobelia inflata herb), povidone-silver nitrate, silver acetate, or any other ingredients...

  8. 21 CFR 310.544 - Drug products containing active ingredients offered over-the-counter (OTC) for use as a smoking...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., povidone-silver nitrate, quinine ascorbate, silver acetate, silver nitrate, and thymol have been present as... (terpeneless), licorice root extract, menthol, methyl salicylate, quinine ascorbate, silver nitrate, and/or... Lobelia inflata herb), povidone-silver nitrate, silver acetate, or any other ingredients...

  9. Outstanding Phenotypic Differences in the Profile of Amyloid-β between Tg2576 and APPswe/PS1dE9 Transgenic Mouse Models of Alzheimer’s Disease

    PubMed Central

    Allué, José Antonio; Sarasa, Leticia; Izco, María; Pérez-Grijalba, Virginia; Fandos, Noelia; Pascual-Lucas, María; Ogueta, Samuel; Pesini, Pedro; Sarasa, Manuel

    2016-01-01

    APPswe/PS1dE9 and Tg2576 are very common transgenic mouse models of Alzheimer’s disease (AD), used in many laboratories as tools to research the mechanistic process leading to the disease. In order to augment our knowledge about the amyloid-β (Aβ) isoforms present in both transgenic mouse models, we have developed two chromatographic methods, one acidic and the other basic, for the characterization of the Aβ species produced in the brains of the two transgenic mouse models. After immunoprecipitation and micro-liquid chromatography-electrospray ionization mass spectrometry/mass spectrometry, 10 species of Aβ, surprisingly all of human origin, were detected in the brain of Tg2576 mouse, whereas 39 species, of both murine and human origin, were detected in the brain of the APP/PS1 mouse. To the best of our knowledge, this is the first study showing the identification of such a high number of Aβ species in the brain of the APP/PS1 transgenic mouse, whereas, in contrast, a much lower number of Aβ species were identified in the Tg2576 mouse. Therefore, this study brings to light a relevant phenotypic difference between these two popular mice models of AD. PMID:27258422

  10. A bill to award a Congressional Gold Medal to the World War II members of the "Doolittle Tokyo Raiders", for outstanding heroism, valor, skill, and service to the United States in conducting the bombings of Tokyo.

    THOMAS, 113th Congress

    Sen. Brown, Sherrod [D-OH

    2013-02-26

    11/20/2013 Held at the desk. (All Actions) Notes: For further action, see H.R.1209, which became Public Law 113-106 on 5/23/2014. Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  11. Award winner for outstanding research in the PhD category, 2014 Society for Biomaterials annual meeting and exposition, Denver, Colorado, April 16-19, 2014: Decellularized adipose matrix hydrogels stimulate in vivo neovascularization and adipose formation.

    PubMed

    Adam Young, D; Bajaj, Vaibhav; Christman, Karen L

    2014-06-01

    Decellularization of tissues offers the ability to produce tissue-specific extracellular matrix (ECM) scaffolds that recreate many of the biochemical aspects of the tissue of interest. In this study, we describe the in vivo function of decellularized adipose ECM hydrogels for treating subcutaneous adipose deficits. Adipose ECM hydrogels were combined with either adipose-derived adult stem cells or a biocompatible cross-linker, injected subcutaneously into nude mice, and evaluated over the course of 1 month. These ECM hydrogels showed improved integration with the surrounding tissue in vivo compared to a clinical standard soft tissue filler, Juvederm, and stimulated neovascularization. More importantly, these adipose ECM hydrogels facilitated new adipose regeneration within the material at 1 month, a feature not seen with current clinical soft tissue fillers. These results contribute to the growing evidence that ECM-based materials are capable of stimulating subcutaneous adipose regeneration, suggesting that future soft tissue filler materials could incorporate ECM elements in order to restore function to adipose deficits instead of simply filling them with static materials.

  12. EPA Honors 2016 Energy Star Partners of the Year for Outstanding Achievements in Energy Efficiency/In 2014 alone, all Energy Star partners prevented 283 million metric tons of GHG emissions, providing $31.5 billion in economic benefits

    EPA Pesticide Factsheets

    WASHINGTON-- The U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE) are honoring 149 businesses and organizations in 35 states for their commitment to saving energy and protecting the environment through superior energ

  13. EPA Honors 2016 Energy Star Partners of the Year for Outstanding Achievements in Energy Efficiency In 2014 alone, all Energy Star partners prevented 283 million metric tons of GHG emissions, providing $31.5 billion in economic benefits

    EPA Pesticide Factsheets

    (03/29/2016 - ATLANTA) - The U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE) is honoring Kenton County School District in Ft. Wright, Kentucky for their commitment to saving energy and protecting the environment th

  14. Student Award for Outstanding Research Winner in the Undergraduate Category for the 2017 Society for Biomaterials Annual Meeting and Exposition, April 5-8, 2017, Minneapolis, Minnesota: Development and characterization of stimuli-responsive hydrogel microcarriers for oral protein delivery.

    PubMed

    O'Connor, Colleen; Steichen, Stephanie; Peppas, Nicholas A

    2017-05-01

    A family of pH-responsive terpolymers composed of methacrylic acid (MAA), N-vinyl pyrrolidone (NVP), and poly(ethylene glycol) monomethylether monomethacrylate (PEGMMA) have been developed and evaluated for their pH-responsive swelling behavior, protein-loading capabilities, and cytocompatibility. These terpolymer hydrogels, designated as P((MAA-co-NVP)-g-EG), were synthesized with varying PEG chain lengths and monomer feed ratios. The incorporation of MAA into the terpolymer structure was quantified with potentiometric titration. Equilibrium and dynamic swelling studies confirmed the pH-responsive behavior of the hydrogel, with the system remaining collapsed/complexed in acidic pH conditions and swollen/decomplexed in neutral pH conditions. The ability of the hydrogels to partition protein into the swollen network was assessed for two model proteins of varying molecular weight: insulin and porcine growth hormone. Finally, the cytocompatibility of the hydrogels in the presence of two model intestinal cell lines was investigated and confirmed minimal cytotoxicity at and below 2.5 mg/mL. The developed P((MAA-co-NVP)-g-EG) hydrogels exhibit unique properties that could potentially be utilized for drug delivery and separation applications. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 1243-1251, 2017.

  15. I am starting to suspect those green things might be affecting my pretty landscape: ecogeomorphic feedbacks from the coast to the hills (Arne Richter Award for Outstanding Young Scientists Lecture)

    NASA Astrophysics Data System (ADS)

    Mudd, Simon M.

    2013-04-01

    One metaphor for ecology and landscapes is that of an ecologic play being performed within a geomorphic theatre. As we learn more about how organisms interact with landscape, this metaphor seems appropriate only if the theatre in question is disassembled and reconstructed by the actors between acts. The productivity, biomass and spatial distribution of biotic agents may be controlled by landscape properties but they also strongly exert a control sediment transport and deposition processes, which together with tectonics act to sculpt the Earth's surface. Here I examine the coupled evolution of ecologic and geomorphic systems with examples from both coastal and upland environments. I also highlight the exciting proliferation of LiDAR data (light detection and ranging) which can detect both canopy structure and the Earth's surface at unprecedented detail, and show the potential for this expanding catalogue of data to forge an ever closer union between the fields of ecology and Earth surface processes.

  16. Container production and nursery evaluation of native herbaceous plants for landscaping and revegetation of disturbed sites

    SciTech Connect

    Cunningham, M.; Farmer, R.E. Jr.

    1983-01-01

    Thirty-two species in the genera Asclepias, Aster, Bidens, Coreopsis, Chrysopsis, Eupatorium, Echinacea, Helenium, Helianthus, Lobelia, Rudbeckia, Solidago, and Vernonia were propagated by seed from wild populations in eastern Tennessee. Seed were collected at dispersal in the fall, preliminary dormancy and germination tests conducted, and seed treated in accordance with test results to obtain greenhouse germinants. Seed were sown in late February on MetroMix in Rootrainers and transplanted to an irrigated nursery in early May. Survival was over 90%, and all but one species flowered and seeded abundantly during the first season. Observations of growth habit, flowering, and seed dispersal were recorded.

  17. Fungal Planet description sheets: 128-153.

    PubMed

    Crous, P W; Shivas, R G; Wingfield, M J; Summerell, B A; Rossman, A Y; Alves, J L; Adams, G C; Barreto, R W; Bell, A; Coutinho, M L; Flory, S L; Gates, G; Grice, K R; Hardy, G E St J; Kleczewski, N M; Lombard, L; Longa, C M O; Louis-Seize, G; Macedo, F; Mahoney, D P; Maresi, G; Martin-Sanchez, P M; Marvanová, L; Minnis, A M; Morgado, L N; Noordeloos, M E; Phillips, A J L; Quaedvlieg, W; Ryan, P G; Saiz-Jimenez, C; Seifert, K A; Swart, W J; Tan, Y P; Tanney, J B; Thu, P Q; Videira, S I R; Walker, D M; Groenewald, J Z

    2012-12-01

    Novel species of microfungi described in the present study include the following from Australia: Catenulostroma corymbiae from Corymbia, Devriesia stirlingiae from Stirlingia, Penidiella carpentariae from Carpentaria, Phaeococcomyces eucalypti from Eucalyptus, Phialophora livistonae from Livistona, Phyllosticta aristolochiicola from Aristolochia, Clitopilus austroprunulus on sclerophyll forest litter of Eucalyptus regnans and Toxicocladosporium posoqueriae from Posoqueria. Several species are also described from South Africa, namely: Ceramothyrium podocarpi from Podocarpus, Cercospora chrysanthemoides from Chrysanthemoides, Devriesia shakazului from Aloe, Penidiella drakensbergensis from Protea, Strelitziana cliviae from Clivia and Zasmidium syzygii from Syzygium. Other species include Bipolaris microstegii from Microstegium and Synchaetomella acerina from Acer (USA), Brunneiapiospora austropalmicola from Rhopalostylis (New Zealand), Calonectria pentaseptata from Eucalyptus and Macadamia (Vietnam), Ceramothyrium melastoma from Melastoma (Indonesia), Collembolispora aristata from stream foam (Czech Republic), Devriesia imbrexigena from glazed decorative tiles (Portugal), Microcyclospora rhoicola from Rhus (Canada), Seiridium phylicae from Phylica (Tristan de Cunha, Inaccessible Island), Passalora lobeliae-fistulosis from Lobelia (Brazil) and Zymoseptoria verkleyi from Poa (The Netherlands). Valsalnicola represents a new ascomycete genus from Alnus (Austria) and Parapenidiella a new hyphomycete genus from Eucalyptus (Australia). Morphological and culture characteristics along with ITS DNA barcodes are also provided.

  18. 76 FR 77831 - 2012 Presidential Candidate Matching Fund Submission Dates and Post Date of Ineligibility Dates...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-14

    ... Submit Statements of Net Outstanding Campaign Obligations AGENCY: Federal Election Commission. ACTION: Notice of matching fund submission dates and submission dates for statements of net outstanding campaign... statements of net outstanding campaign obligations (``NOCO statement'') after their dates of...

  19. Commemorating the 70th anniversary and commending the brave men of the 17th Bombardment Group (Medium) who became known as the "Doolittle Tokyo Raiders" for outstanding heroism, valor, skill, and service to the United States in conducting the bombing of Tokyo on April 18, 1942.

    THOMAS, 112th Congress

    Sen. Brown, Sherrod [D-OH

    2012-04-16

    08/02/2012 Resolution agreed to in Senate with an amendment and an amendment to the Title and an amended preamble by Unanimous Consent. (text: CR S6011) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  20. A resolution reaffirming the strong support of the United States Government for freedom of navigation and other internationally lawful uses of sea and airspace in the Asia-Pacific region, and for the peaceful diplomatic resolution of outstanding territorial and maritime claims and disputes.

    THOMAS, 113th Congress

    Sen. Menendez, Robert [D-NJ

    2014-04-07

    07/10/2014 Resolution agreed to in Senate with amendments and an amended preamble by Unanimous Consent. (text: CR S4440-4442) (All Actions) Tracker: This bill has the status Passed SenateHere are the steps for Status of Legislation:

  1. Pollen consumption by flower mites in three hummingbird-pollinated plant species.

    PubMed

    Velázquez, Tonatiuh; Ornelas, Juan Francisco

    2010-02-01

    Laboratory studies suggest that pollen consumption by flower mites may decrease the male fitness of the plant by reducing the available pollen for dispersal. Here we assessed pollen consumption by flower mites under natural conditions in three plant species with long-lived, protandrous flowers, Moussonia deppeana (Gesneriaceae), Lobelia laxiflora and L. cardinalis (Lobeliaceae). Total pollen mass was measured after 24 and 48 h in flowers exposed to flower mites and excluded from hummingbirds, flowers exposed to mites and hummingbird visitation, and in flowers recently opened with dehisced anthers. Compared with recently opened flowers, pollen availability was reduced about half in the presence of flower mites and the same effect was observed in the three plant species. Our results suggest that flower mites are removing a great deal of pollen and the reduction of pollen implies the possibility of direct impact on pollen transfer.

  2. 29 CFR 4047.4 - Payment of premiums.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... payment due dates for the outstanding premiums. (c) Methods for determining variable rate portion of the premium. In general, the variable rate portion of the outstanding premiums shall be determined...

  3. 76 FR 9065 - Self-Regulatory Organizations; NYSE Arca, Inc.; Order Approving a Proposed Rule Change To List...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-16

    ... weight of the Index components have a minimum principal amount outstanding of $100 million or more. The... the weight of the index or portfolio each shall have a minimum principal amount outstanding of $100... components had a minimum principal amount outstanding of $100 million or more. \\13\\ See 17 CFR...

  4. The Winners' Circle

    ERIC Educational Resources Information Center

    Reese, Susan

    2007-01-01

    In this article, the author presents the ACTE's award winning educators for 2007. They are: (1) Leslie Watkins, 2007 ACTE Teacher of the Year; (2) Mike Gillispie, 2007 ACTE Outstanding Career and Technical Educator; (3) Sandy Hume, 2007 ACTE Outstanding New Career and Technical Teacher; and (4) Joline Dunbar, 2007 ACTE Outstanding Teacher in…

  5. 26 CFR 53.4943-7 - Special rules for readjustments involving grandfathered holdings.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... stated: Example 1. (i) F, a private foundation, has owned 80% of the one outstanding class of stock of X... the merger, F owns 25% of the one outstanding class of Z stock. Third parties do not control Z so that... reduced to 25%. Example 2. (i) F, a private foundation, owns 100% of the one outstanding class of stock...

  6. Rapid Identification and Assignation of the Active Ingredients in Fufang Banbianlian Injection Using HPLC-DAD-ESI-IT-TOF-MS.

    PubMed

    Li, Sensen; Lin, Zongtao; Jiang, Haixiu; Tong, Lingkun; Wang, Hong; Chen, Shizhong

    2016-08-01

    Fufang Banbianlian Injection (FBI) is a well-known traditional Chinese medicine formula composed of three herbal medicines. However, the systematic investigation on its chemical components has not been reported yet. In this study, a high-performance liquid chromatography combined with diode-array detector, and coupled to an electrospray ionization with ion-trap time-of-flight mass spectrometry (HPLC-DAD-ESI-IT-TOF-MS) method, was established for the identification of chemical profile in FBI. Sixty-six major constituents (14 phenolic acids, 14 iridoids, 20 flavonoids, 2 benzylideneacetone compounds, 3 phenylethanoid glycosides, 1 coumarin, 1 lignan, 3 nucleosides, 1 amino acids, 1 monosaccharides, 2 oligosaccharides, 3 alduronic acids and citric acid) were identified or tentatively characterized by comparing their retention times and MS spectra with those of standards or literature data. Finally, all constituents were further assigned in the individual herbs (InHs), although some of them were from multiple InHs. As a result, 11 compounds were from Lobelia chinensis Lour, 33 compounds were from Scutellaria barbata D. Don and 38 compounds were from Hedyotis diffusa Willd. In conclusion, the developed HPLC-DAD-ESI-IT-TOF-MS method is a rapid and efficient technique for analysis of FBI sample, and could be a valuable method for the further study on the quality control of the FBI.

  7. Pollen limitation and its influence on natural selection through seed set.

    PubMed

    Bartkowska, M P; Johnston, M O

    2015-11-01

    Stronger pollen limitation should increase competition among plants, leading to stronger selection on traits important for pollen receipt. The few explicit tests of this hypothesis, however, have provided conflicting support. Using the arithmetic relationship between these two quantities, we show that increased pollen limitation will automatically result in stronger selection (all else equal) although other factors can alter selection independently of pollen limitation. We then tested the hypothesis using two approaches. First, we analysed the published studies containing information on both pollen limitation and selection. Second, we explored how natural selection measured in one Ontario population of Lobelia cardinalis over 3 years and two Michigan populations in 1 year relates to pollen limitation. For the Ontario population, we also explored whether pollinator-mediated selection is related to pollen limitation. Consistent with the hypothesis, we found an overall positive relationship between selection strength and pollen limitation both among species and within L. cardinalis. Unexpectedly, this relationship was found even for vegetative traits among species, and was not found in L. cardinalis for pollinator-mediated selection on nearly all trait types.

  8. Protostane and Fusidane Triterpenes: A Mini-Review

    PubMed Central

    Zhao, Ming; Goedecke, Tanja; Gunn, Jordan; Duan, Jin-Ao; Che, Chun-Tao

    2013-01-01

    Protostane triterpenes belong to a group of tetracyclic triterpene that exhibit unique structural characteristics. Their natural distribution is primarily limited to the genus Alisma of the Alismataceae family, but they have also been occasionally found in other plant genera such as Lobelia, Garcinia, and Leucas. To date, there are 59 known structures of protostane. Many of them have been reported to possess biological properties such as improving lipotropism, hepato-protection, anti-viral activity against hepatitis B and HIV-I virus, anti-cancer activity, as well as reversal of multidrug resistance in cancer cells. On the other hand, fusidanes are fungal products characterized by the 29-nor protostane structures. They possess antibiotic properties against staphylococci, including the methicillin-resistant staphylococcus aureus (MRSA). Fusidic acid is a representative member which has found clinical applications. This review covers plant sources of the protostanes, their structure elucidation, characteristic structural and spectral properties, as well as biological activities. The fungal sources, structural features, structure-activity relationship and biological activities of fusidanes are also covered in this review. Additionally, the biogenesis of these two types of triterpene is discussed and a refined pathway is proposed. PMID:23563857

  9. Target-directed discovery and production of pharmaceuticals in transgenic mutant plant cells.

    PubMed

    Brown, D P; Rogers, D T; Gunjan, S K; Gerhardt, G A; Littleton, J M

    2016-11-20

    Plants are a source of complex bioactive compounds, with value as pharmaceuticals, or leads for synthetic modification. Many of these secondary metabolites have evolved as defenses against competing organisms and their pharmaceutical value is "accidental", resulting from homology between target proteins in these competitors, and human molecular therapeutic targets. Here we show that it is possible to use mutation and selection of plant cells to re-direct their "evolution" toward metabolites that interact with the therapeutic target proteins themselves. This is achieved by expressing the human target protein in plant cells, and selecting mutants for survival based on the interaction of their metabolome with this target. This report describes the successful evolution of hairy root cultures of a Lobelia species toward increased biosynthesis of metabolites that inhibit the human dopamine transporter protein. Many of the resulting selected mutants are overproducing the active metabolite found in the wild-type plant, but others overproduce active metabolites that are not readily detectable in non-mutants. This technology can access the whole genomic capability of a plant species to biosynthesize metabolites with a specific target. It has potential value as a novel platform for plant drug discovery and production, or as a means of optimizing the therapeutic value of medicinal plant extracts.

  10. Survival of three commercially available natural enemies exposed to Michigan wildflowers.

    PubMed

    Walton, Nathaniel J; Isaacs, Rufus

    2011-10-01

    Flowering plants are often used in habitat management programs to conserve the arthropod natural enemies of insect pests. In this study, nine species of flowering plants representing six families commonly found in North America east of the Rocky Mountains were evaluated based on how much they extended the lifespans of three commercially available natural enemy species in cages with cut flower stems compared with cages containing water only. The natural enemies used in the experiments were a lady beetle (Coleoptera: Coccinellidae: Hippodamia convergens Guérin-Méneville), a predatory bug (Heteroptera: Anthocoridae: Orius insidiosus (Say)), and an aphid parasitoid (Hymenoptera: Braconidae: Aphidius colemani Viereck). The plant species that most extended the lifespans of all three natural enemies were Monarda fistulosa L. (Lamiaceae), Solidago juncea Aiton (Asteraceae), and Daucus carota L. (Apiaceae). Agastache nepetoides (L.) Kuntze (Lamiaceae), Lobelia siphilitica L. (Campanulaceae), and Trifolium pratense L. (Fabaceae) were intermediate in their support of natural enemies. One plant species, Penstemon hirsutus (L.) Willdenow (Scrophulariaceae), did not contribute to the longevity of natural enemies any more than water alone. These results emphasize the need for multi-species evaluations of flowering plants for conservation biocontrol programs, and the variability in plant value for natural enemies.

  11. Playing smart vs. playing safe: the joint expression of phenotypic plasticity and potential bet hedging across and within thermal environments.

    PubMed

    Simons, A M

    2014-06-01

    Adaptive phenotypic plasticity evolves when cues reliably predict fitness consequences of life-history decisions, whereas bet hedging evolves when environments are unpredictable. These modes of response should be jointly expressed, because environmental variance is composed of both predictable and unpredictable components. However, little attention has been paid to the joint expression of plasticity and bet hedging. Here, I examine the simultaneous expression of plasticity in germination rate and two potential bet-hedging traits - germination fraction and within-season diversification in timing of germination - in seeds from multiple seed families of five geographically distant populations of Lobelia inflata (L.) subjected to a thermal gradient. Populations differ in germination plasticity to temperature, in total germination fraction and in the expression of potential diversification in the timing of germination. The observation of a negative partial correlation between the expression of plasticity and germination variance (potential diversification), and a positive correlation between plasticity and germination fraction is suggestive of a trade-off between modes of response to environmental variance. If the observed correlations are indicative of those between adaptive plasticity and bet hedging, we expect an optimal balance to exist and differ among populations. I discuss the challenges involved in testing whether the balance between plasticity and bet hedging depends on the relative predictability of environmental variance.

  12. Animated THEMIS Launch and Deploy

    NASA Video Gallery

    THEMIS (Time History of Events and Microscale Interactions during Substorms) answers fundamental outstanding questions regarding the magnetospheric substorm instability, a dominant mechanism of tra...

  13. 43 CFR 3582.2-2 - Excepted areas.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... lakes measured horizontally from the shoreline at maximum water surface elevations. (2) All lands within.... (2) All lands classified as high density recreation, general outdoor recreation, outstanding...

  14. 32 CFR 191.5 - Responsibilities.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Defense on programmatic EEO matters with EEOC, OPM, the Department of Justice, other Federal Agencies, and...) Establish EEO Awards Programs to recognize individuals and organizational units for outstanding...

  15. 29 CFR 4219.33 - Plan rules concerning overdue and defaulted withdrawal liability.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... providing reasonable grace periods during which late payments may be made without interest; additional... withdrawal liability; and rules pertaining to acceleration of the outstanding balance on default. Plan...

  16. 5 CFR 319.301 - Qualifications standards.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... minimum length of experience or minimum education requirement beyond that authorized for similar positions... positive evidence that they have performed highly creative or outstanding research where similar...

  17. Climate Leadership Awards Application Process, Eligibility, and Evaluation Criteria

    EPA Pesticide Factsheets

    Learn about evaluation criteria and access applications for the 2016 Climate Leadership Awards, which publicly recognizes individuals and organizations for their outstanding leadership in reducing greenhouse gas emissions.

  18. 26 CFR 1.1394-0 - Table of contents.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... bond and loan recycling programs. (g) Limitation on amount of bonds. (1) Determination of outstanding... with deemed compliance provisions. (3) Application to pooled financing bond and loan recycling...

  19. 36 CFR 73.9 - World Heritage criteria.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... significant stage(s) in human history; or (v) Be an outstanding example of a traditional human settlement or...) Sites nominated should therefore: (i) Be outstanding examples representing major stages of earth's history, including the record of life, significant on-going geological processes in the development...

  20. Growing Teachers: The Practice of Teacher Leadership and Its Implications for Professional Development in Literacy Instruction

    ERIC Educational Resources Information Center

    Swiger, Shannon

    2014-01-01

    Improving student literacy is largely dependent upon the presence of outstanding teachers (Rupley, 2011; Strickland, Kamil, Walberg, & Manning, 2004). One of the significant influences for developing and sustaining outstanding teachers is professional development. However, not all professional development is equally valuable when it comes to…

  1. 12 CFR 24.4 - Investment limits.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... ENTITIES, COMMUNITY DEVELOPMENT PROJECTS, AND OTHER PUBLIC WELFARE INVESTMENTS § 24.4 Investment limits. (a) Limits on aggregate outstanding investments. A national bank's aggregate outstanding investments under... 12 Banks and Banking 1 2010-01-01 2010-01-01 false Investment limits. 24.4 Section 24.4 Banks...

  2. Theatre with Children.

    ERIC Educational Resources Information Center

    Regan, F. Scott

    1985-01-01

    Reports on an on-site survey of six outstanding theatre programs in Las Vegas, Omaha, Minneapolis, Fort Wayne (IN), Flint (MI), and Midland (TX). Notes their successful features: high-energy leaders, total child concept, clear goals, outstanding facilities, play selection, etc. Covers actor training in depth. (PD)

  3. Dynamics of Abusive IPv6 Networks

    DTIC Science & Technology

    2014-09-01

    domain. Results show that while IPv6 spamming behavior is growing, it is still in its infancy and no outstanding characteristics emerged that allow...spamming behavior is growing, it is still in its infancy and no outstanding characteristics emerged that allow for definitive classification as a dominant

  4. 34 CFR 674.56 - Employment cancellation-Federal Perkins, NDSL and Defense loans.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... of the outstanding balance on a borrower's Federal Perkins or NDSL made on or after July 23, 1992... or after October 7, 1998, if the cancellation benefits provided under this section are not included... outstanding balance on a borrower's Federal Perkins loan or NDSL made on or after July 23, 1992, for...

  5. Winning Ways.

    ERIC Educational Resources Information Center

    Lozada, Marlene; And Others

    1996-01-01

    Profiles the American Vocational Association vocational teacher of the year, Rebecca Rhodes, in "Coming Full Circle" (Lozada); the outstanding vocational educator, Roy Peters, Jr., in "The Shoes Fit" (Dykman); and the outstanding new vocational teacher, Ann Krause, in "First Love" (Vo). (SK)

  6. Success Stories 2001: Past, Present & Future.

    ERIC Educational Resources Information Center

    Royce, Sherry, Ed.

    This publication is comprised of the biographies of eight individuals designated in the past and nine individuals currently designated as outstanding, successful students from Pennsylvania's adult basic and literacy education (ABLE) programs. Each biography is accompanied by a description of the sponsor program. The past outstanding students are…

  7. 26 CFR 301.9100-6T - Time and manner of making certain elections under the Deficit Reduction Act of 1984.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... issue taxable student loan bonds. This paragraph applies to the election by an issuer to issue taxable student loan bonds under section 625(c) of the Act. The election is available for obligations issued after... outstanding tax exempt issues of student loan bonds of the issuer. With respect to outstanding tax...

  8. 42 CFR 24.4 - Eligibility.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES PERSONNEL SENIOR BIOMEDICAL RESEARCH SERVICE § 24.... In addition, the individual must be outstanding in the field of biomedical research or clinical... biomedical research or clinical research evaluation. (a) Outstanding in the field of biomedical...

  9. 42 CFR 24.4 - Eligibility.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES PERSONNEL SENIOR BIOMEDICAL RESEARCH SERVICE § 24.... In addition, the individual must be outstanding in the field of biomedical research or clinical... biomedical research or clinical research evaluation. (a) Outstanding in the field of biomedical...

  10. 42 CFR 24.4 - Eligibility.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES PERSONNEL SENIOR BIOMEDICAL RESEARCH SERVICE § 24.... In addition, the individual must be outstanding in the field of biomedical research or clinical... biomedical research or clinical research evaluation. (a) Outstanding in the field of biomedical...

  11. 42 CFR 24.4 - Eligibility.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES PERSONNEL SENIOR BIOMEDICAL RESEARCH SERVICE § 24.... In addition, the individual must be outstanding in the field of biomedical research or clinical... biomedical research or clinical research evaluation. (a) Outstanding in the field of biomedical...

  12. 24 CFR 248.173 - Resident homeownership program.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ..., to the extent proceeds of the sale remain after paying off other outstanding debt incurred in... outstanding debt incurred in connection with the purchase of the property, and paying any other amounts due in... describe the resident council's current abilities and proposed capacity-building activities to...

  13. Student Centers/Service Areas.

    ERIC Educational Resources Information Center

    American School & University, 2003

    2003-01-01

    Presents a college building judged to be an outstanding student center/service area in a competition, which evaluated outstanding learning environments at educational institutions nationwide. Jurors spent two days reviewing projects, highlighting unique concepts and ideas. Provides data on the Texas Tech University Health Sciences Center,…

  14. 26 CFR 54.4975-15 - Other transitional rules.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 50 percent of the outstanding beneficial interests of ABC Partnership which ordinarily and customarily furnished certain services on June 30, 1974. On July 2, 1974, ABC Partnership was incorporated into ABC Corporation with one class of stock outstanding. A owns 50 percent of the shares of such...

  15. 7 CFR 1786.207 - Prepayment premium.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... between the outstanding principal balance of the loan being refinanced and the present value of the loan... interest for 1 year on the outstanding principal balance of the loan or loan advance, or any portion of the loan or advance, being refinanced, multiplied by the ratio that: (i) The number of quarterly...

  16. 7 CFR 1786.207 - Prepayment premium.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... between the outstanding principal balance of the loan being refinanced and the present value of the loan... interest for 1 year on the outstanding principal balance of the loan or loan advance, or any portion of the loan or advance, being refinanced, multiplied by the ratio that: (i) The number of quarterly...

  17. 13 CFR 107.550 - Prior approval of secured third-party debt of leveraged Licensees.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Securities. (b) General rule. If you have outstanding Leverage, you must get SBA's written approval before.... If you have outstanding Leverage and you have a secured line of credit that was created on or before... your historical performance, current financial position, proposed terms of the secured debt and...

  18. 13 CFR 107.550 - Prior approval of secured third-party debt of leveraged Licensees.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Securities. (b) General rule. If you have outstanding Leverage, you must get SBA's written approval before.... If you have outstanding Leverage and you have a secured line of credit that was created on or before... your historical performance, current financial position, proposed terms of the secured debt and...

  19. 29 CFR 4207.7 - Liability for subsequent complete withdrawals and related adjustments for allocating unfunded...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) The outstanding balance, as of the date of reentry, of the unfunded vested benefits allocated to the... after reentry. (i) The outstanding balance of the unfunded vested benefits allocated to an employer for... manner consistent with the treatment under the paragraph(s) of this section applicable to plans using...

  20. Private Student Loans. Report to the Senate Committee on Banking, Housing, and Urban Affairs, the Senate Committee on Health, Education, Labor, and Pensions, the House of Representatives Committee on Financial Services, and the House of Representatives Committee on Education and the Workforce

    ERIC Educational Resources Information Center

    Consumer Financial Protection Bureau, 2012

    2012-01-01

    American consumers owe more than $150 billion in outstanding private student loan debt. While this amount is significantly less than the amount outstanding on student loans guaranteed by the federal government, the private student loan ("PSL") product is an important component of higher education finance and does not appear to be well…

  1. A Comparison of the Personality Traits of Secondary Science Teachers in Mississippi Public Schools.

    ERIC Educational Resources Information Center

    Guyton, John William, III

    This document reports on a study designed to determine if there are significant identifiable differences in personality traits of outstanding, regular, and provisional secondary science teachers in Mississippi. Combinations of factors that differentiated the three groups were also investigated. The scores of typical outstanding science teachers…

  2. 76 FR 24513 - Public Land Order No. 7765; Partial Revocation Jupiter Inlet Lighthouse Withdrawal; Florida

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-05-02

    ... Bureau of Land Management Public Land Order No. 7765; Partial Revocation Jupiter Inlet Lighthouse... Management to continue to be managed as part of the Jupiter Inlet Lighthouse Outstanding Natural Area. DATES... Resource Act of 2008 (43 U.S.C. 1787), which created the Jupiter Inlet Lighthouse Outstanding Natural...

  3. Development of an Army Stationary Axle Efficiency Test Stand - Interim Report TFLRF No. 471

    DTIC Science & Technology

    2015-09-01

    chemically charged filters  Excellent heat transfer for high-temperature applications, such as engines with EGR and SCR systems  Outstanding...and outstanding heat transfer, while nitrite-free coolants use organic acid inhibitors to provide guaranteed protection for all cooling system ...UNCLASSIFIED UNCLASSIFIED DEVELOPMENT OF AN ARMY STATIONARY AXLE EFFICIENCY TEST STAND INTERIM REPORT TFLRF No. 471 by Adam C

  4. 12 CFR 24.4 - Investment limits.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... ENTITIES, COMMUNITY DEVELOPMENT PROJECTS, AND OTHER PUBLIC WELFARE INVESTMENTS § 24.4 Investment limits. (a) Limits on aggregate outstanding investments. A national bank's aggregate outstanding investments under... 12 Banks and Banking 1 2011-01-01 2011-01-01 false Investment limits. 24.4 Section 24.4 Banks...

  5. The Making of "The List"

    ERIC Educational Resources Information Center

    Crowther, David T.; Venable, Colleen; Barman, Charles

    2005-01-01

    Many educators, librarians, and even some parents anticipate the publication of the Outstanding Science Trade Books (OSTB) for grades K-12 each year. wondered how Some wonder how the mountain of trade books out there gets evaluated or how books are chosen as "outstanding"? This list does not just magically appear but is the result of a careful…

  6. The Making of the List

    ERIC Educational Resources Information Center

    Crowther, David T.; Venable, Colleen; Barman, Charles

    2005-01-01

    Many educators, librarians, and even some parents anticipate the publication of the Outstanding Science Trade Books (OSTB) for grades K-12 each year (page 23). Have you ever wondered how the mountain of trade books out there gets evaluated or how books are chosen as "outstanding"? This list doesn't just magically appear but is the result of a…

  7. 44 CFR 206.367 - Loan repayment.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... outstanding cash from the actual date of its disbursement by the Treasury. (2) The interest amount due will be... interest, P=the principal amount disbursed; R=the interest rate of the loan; and, T=the outstanding term in... be added to the unpaid balance of the loan, bear interest at the same rate as the loan, and...

  8. Motivation within the DMGT 2.0 Framework

    ERIC Educational Resources Information Center

    Gagne, Francoys

    2010-01-01

    This article begins with a brief survey of the recent update of the "Differentiated Model of Giftedness and Talent" (DMGT). The DMGT defines talent development as the transformation of outstanding natural abilities (called gifts) into outstanding knowledge and skills (called talents). Two types of catalysts, intrapersonal and…

  9. 26 CFR 1.1248-4 - Limitation on tax applicable to individuals.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... of shares of X deemed to be outstanding on each day of 1963 (100). (3) More than one class of stock. If a foreign corporation for a taxable year has more than one class of stock outstanding, then before... first tier corporation. (2) More than one class of stock. If a foreign corporation for a taxable...

  10. 26 CFR 1.1248-3 - Earnings and profits attributable to stock in complex cases.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... corporation which uses the calendar year as its taxable year, had 100 shares of one class of stock outstanding... 1965 (365) 8.5% Tentative ratable share $17 (4) More than one class of stock. If a foreign corporation for a taxable year has more than one class of stock outstanding, then before applying subparagraphs...

  11. 26 CFR 1.305-3 - Disproportionate distributions.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... a corporation has two classes of common stock outstanding and cash dividends are paid on one class... quarterly stock dividends to one class of common shareholders and annual cash dividends to another class of... cases where there is more than one class of stock outstanding, each class of stock is to be...

  12. 26 CFR 1.565-2 - Limitations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... shares of the same class or to one class of stock as compared with any other class of stock. See section... calendar year basis, has one class of consent stock outstanding, owned in equal amounts by A, B, and C. If... returns on the calendar year basis, has only one class of stock outstanding, owned in equal amounts by...

  13. 26 CFR 1.565-2 - Limitations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... shares of the same class or to one class of stock as compared with any other class of stock. See section... calendar year basis, has one class of consent stock outstanding, owned in equal amounts by A, B, and C. If... returns on the calendar year basis, has only one class of stock outstanding, owned in equal amounts by...

  14. 76 FR 80985 - New Postal Product

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-27

    ... noticing a recently-filed Postal Service request to enter into an outstanding International Business Reply..., pursuant to 39 CFR 3015.5, of contingency prices under an outstanding International Business Reply Service... under Functionally Equivalent International Business Reply Service Competitive Contract 1...

  15. Toxicity of herbal extracts used in ethno-veterinary medicine and green-encapsulated ZnO nanoparticles against Aedes aegypti and microbial pathogens.

    PubMed

    Banumathi, Balan; Vaseeharan, Baskaralingam; Ishwarya, Ramachandran; Govindarajan, Marimuthu; Alharbi, Naiyf S; Kadaikunnan, Shine; Khaled, Jamal M; Benelli, Giovanni

    2017-04-07

    Dengue and chikungunya are arboviral diseases mainly vectored by the mosquito Aedes aegypti. Presently, there is no treatment for these viral diseases and their prevention is still based on vector control measures. Nanopesticides fabricated using herbal extracts as reducing and capping agents currently represent an excellent platform for pest control. In this scenario, the present study assessed the acute toxicity of seven plants employed in ethno-veterinary medicine of southern India, as well as the green synthesis of zinc oxide nanoparticles, on third-instar larvae of A. aegypti. Larvae were exposed to extracts of the seven plants obtained with solvents of different polarity (acetone, ethanol, petroleum ether, and water) for 24 h. Maximum efficacy was observed for Lobelia leschenaultiana leaf extracts prepared using all the four solvent extracts (LC50 = 22.83, 28.12, 32.61, and 36.85 mg/L, respectively). Therefore, this plant species was used for the synthesis and stabilization of ZnO nanoparticles based on its maximum efficacy against third-instar larvae of A. aegypti. L. leschenaultiana-encapsulated ZnO nanoparticles showed 100% mortality when tested at 10 mg/L, the LC50 was extremely low,  1.57 mg/L. Zinc acetate achieved only 65.33% when tested at 60 mg/L, with a LC50 of 51.62 mg/L. Additionally, ZnO nanoparticles inhibited growth of Pseudomonas aeruginosa, Proteus vulgaris, Shigella sonnei, and Vibrio parahaemolyticus and also inhibited biofilm formation on selected microbila pathogens, showing impact on EPS production and hydrophobicity. Overall, our results suggest that L. leschenaultiana-fabricated ZnO nanoparticles have a significant potential to control A. aegypti mosquitoes and Gram-negative bacterial pathogens.

  16. Evaluating the cytotoxic effects of the water extracts of four anticancer herbs against human malignant melanoma cells

    PubMed Central

    Ling, Binbing; Michel, Deborah; Sakharkar, Meena Kishore; Yang, Jian

    2016-01-01

    Malignant melanoma (MM) is the most dangerous type of skin cancer, killing more than 1,100 people each year in Canada. Prognosis for late stage and recurrent MM is extremely poor due to insensitivity to chemotherapy drugs, and thus many patients seek complementary and alternative medicines. In this study, we examined four commonly used anticancer herbs in traditional Chinese medicine, Hedyotis diffusa, Scutellaria barbata, Lobelia chinensis, and Solanum nigrum, for their in vitro antitumor effects toward human MM cell line A-375. The crude water extract of S. nigrum (1 g of dry herb in 100 mL water) and its 2-fold dilution caused 52.8%±13.0% and 17.3%±2.7% cytotoxicity in A-375 cells, respectively (P<0.01). The crude water extract of H. diffusa caused 11.1%±12.4% cytotoxicity in A-375 cells with no statistical significance (P>0.05). Higher concentrated formulation might be needed for H. diffusa to exert its cytotoxic effect against A-375 cells. No cytotoxicity was observed in A-375 cells treated with crude water extract of S. barbata and L. chinensis. Further high performance liquid chromatography-tandem mass spectroscopy analysis of the herbal extracts implicated that S. nigrum and H. diffusa might have adopted the same bioactive components for their cytotoxic effects in spite of belonging to two different plant families. We also showed that the crude water extract of S. nigrum reduced intracellular reactive oxygen species generation in A-375 cells, which may lead to a cytostatic effect. Furthermore, synergistic effect was achieved when crude water extract of S. nigrum was coadministered with temozolomide, a chemotherapy drug for skin cancer. PMID:27843296

  17. Variation in the effects of burial in different peatland successional stages on seed survival of four wetland species

    NASA Astrophysics Data System (ADS)

    Egawa, Chika

    2017-01-01

    The availability of viable seeds in soil helps to determine the success of ecological restoration in disturbed habitats. Although seed survival in soil generally increases with an increase in burial depth, whether the effects of burial on seed survival are comparable across different sites is unclear. In this study, I tested the hypothesis that the positive effects of burial on seed survival decrease as vegetation develops through succession. Four wetland species, Drosera rotundifolia, Lobelia sessilifolia, Rhynchospora alba and Moliniopsis japonica, were used for the study. The four species differ in their light requirement for germination; i.e., D. rotundifolia, L. sessilifolia and R. alba germinate best in light, whereas M. japonica germinates equally well in light and darkness. The seeds of these species were buried for two years at three depths (litter, 0 and 4 cm) in three successional stages with different amounts of vegetation and litter in a post-mined peatland. The photosynthetically active radiation (PAR) and temperature at each of litter layer, 0 cm and 4 cm depths were measured for each successional stage. The between-depth differences in PAR and temperature fluctuations decreased as succession progressed. For the three light-demanding species, burial promoted seed survival more in the initial successional stage than in the later successional stages, whereas for M. japonica, burial promoted seed survival equally in all successional stages. This study revealed significant variation in the effects of burial on seed survival, particularly for light-sensitive seeds, and that the soil surface layers in vegetated sites can contain persistent seeds, which could be used as a seed source in restoration.

  18. The vesicular monoamine transporter-2: an important pharmacological target for the discovery of novel therapeutics to treat methamphetamine abuse.

    PubMed

    Nickell, Justin R; Siripurapu, Kiran B; Vartak, Ashish; Crooks, Peter A; Dwoskin, Linda P

    2014-01-01

    Methamphetamine abuse escalates, but no approved therapeutics are available to treat addicted individuals. Methamphetamine increases extracellular dopamine in reward-relevant pathways by interacting at vesicular monoamine transporter-2 (VMAT2) to inhibit dopamine uptake and promote dopamine release from synaptic vesicles, increasing cytosolic dopamine available for reverse transport by the dopamine transporter (DAT). VMAT2 is the target of our iterative drug discovery efforts to identify pharmacotherapeutics for methamphetamine addiction. Lobeline, the major alkaloid in Lobelia inflata, potently inhibited VMAT2, methamphetamine-evoked striatal dopamine release, and methamphetamine self-administration in rats but exhibited high affinity for nicotinic acetylcholine receptors (nAChRs). Defunctionalized, unsaturated lobeline analog, meso-transdiene (MTD), exhibited lobeline-like in vitro pharmacology, lacked nAChR affinity, but exhibited high affinity for DAT, suggesting potential abuse liability. The 2,4-dicholorophenyl MTD analog, UKMH-106, exhibited selectivity for VMAT2 over DAT, inhibited methamphetamine-evoked dopamine release, but required a difficult synthetic approach. Lobelane, a saturated, defunctionalized lobeline analog, inhibited the neurochemical and behavioral effects of methamphetamine; tolerance developed to the lobelane-induced decrease in methamphetamine self-administration. Improved drug-likeness was afforded by the incorporation of a chiral N-1,2-dihydroxypropyl moiety into lobelane to afford GZ-793A, which inhibited the neurochemical and behavioral effects of methamphetamine, without tolerance. From a series of 2,5-disubstituted pyrrolidine analogs, AV-2-192 emerged as a lead, exhibiting high affinity for VMAT2 and inhibiting methamphetamine-evoked dopamine release. Current results support the hypothesis that potent, selective VMAT2 inhibitors provide the requisite preclinical behavioral profile for evaluation as pharmacotherapeutics for

  19. NES Live Video Chat: Women at NASA

    NASA Video Gallery

    The NES project invited all K-12 students to participate in a one-hour-long NASA career panel video webchat on March 29, 2011. This year's panelists were three outstanding women who have chosen to ...

  20. Pan American Health Organization

    MedlinePlus

    ... contest on best experiences in health promotion in cities, schools and universities in the Americas The Pan ... will recognize outstanding health promotion practices developed by cities, schools, universities and institutions of higher education in ...