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Sample records for cooman jaap postma

  1. CooMan - a global collaborative project management system

    SciTech Connect

    Souza, J.M. de; Palma, S.

    1994-12-31

    Project Coordination and Management have long been recognized as an area with growing problems and unsatisfactory solutions. Conciliating flexibility with target achievements is historically the main problem to face. The difficulties have been growing at more than linear ratio with the size and complexity of the Projects being developed in the present days. The HEP communities suffer additional challenges because of the distributed nature of the collaborations, the novelty of each project; and the less authoritarian form of leadership and management of team and individual. This prevents the adoption of more centralized focus on decision. CooMan intends to be a Global Collaborative Project Management System. This paper discusses the basic aspects of the concepts involved, outlining how task coordination, acts of speech, and World-Wide hyper media can be used to support project management activities. A distributed tool to implement such proposition is described, and a first prototype is presented.

  2. Jacob Max Rabbie (1927-2013).

    PubMed

    Stroebe, Wolfgang; Zimbardo, Philip G

    2014-01-01

    Jacob Max Rabbie, an internationally renowned social psychologist and a founding member of the European Association of Social Psychology (EASP), died on June 29, 2013. Jaap was born in Haarlem, the Netherlands, on October 4, 1927. Jaap studied social psychology at the University of Amsterdam and became the face of Dutch social psychology. His later research focused on aggression between individuals and groups, his early work attempted to isolate the minimal conditions that suffice to generate discriminatory ingroup-outgroup attitudes. Jaap was a dedicated and passionate scientist, oriented to getting things right even when this meant going against the current stream.

  3. How Can Science Help Us Care for Nature? Hermeneutics, Fragility, and Responsibility for the Earth

    ERIC Educational Resources Information Center

    Joldersma, Clarence W.

    2009-01-01

    In this review essay, Clarence Joldersma argues for a novel role for science in developing an affirmative answer to his title question, "How can science help us care for nature?" He does so in dialogue with Clare Palmer's edited volume, "Teaching Environmental Ethics," Dirk Postma's "Why Care for Nature?" and Michael Bonnett's "Retrieving Nature."…

  4. 75 FR 8187 - Qualification of Drivers; Exemption Renewals; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-23

    ... Thomas E. Anderson, Garry A. Baker, Bruce W. Barrett, Richard D. Becotte, Wayne Burnett, Theodore W... at the end of the 2-year period. The comment period ended on January 11, 2010 (74 FR 65845.... Murray, Anthony D. Ovitt, John R. Parsons, III, Martin Postma, Steven S. Reinsvold, Michael J....

  5. Investigating the Inner Speech of People Who Stutter: Evidence for (and against) the Covert Repair Hypothesis

    ERIC Educational Resources Information Center

    Brocklehurst, Paul H.; Corley, Martin

    2011-01-01

    In their Covert Repair Hypothesis, Postma and Kolk (1993) suggest that people who stutter make greater numbers of phonological encoding errors, which are detected during the monitoring of inner speech and repaired, with stuttering-like disfluencies as a consequence. Here, we report an experiment that documents the frequency with which such errors…

  6. 76 FR 78728 - Qualification of Drivers; Exemption Applications; Vision

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-19

    ... (VT) John R. Parsons, III (VA) Martin Postma (IL) Steven S. Reinsvold (WI) Glenn T. Riley (OH) George... on January 17, 2008 (73 FR 3316), or you may visit http://edocket.access.gpo.gov/2008/pdf/E8-785.pdf... entry conditions for obtaining an exemption from the vision requirements (64 FR 54948; 65 FR 159; 66...

  7. Makin' Stories: From New York to Monterey and Now to D.C., Dutch Crew Documents Best "2.0" Practices in U.S. Libraries

    ERIC Educational Resources Information Center

    Computers in Libraries, 2008

    2008-01-01

    Jaap van de Geer, Erik Boekesteijn, Michael Stephens, and Geert van den Boogaard toured the U.S. last fall and interviewed librarians about how they are revitalizing their libraries. These four Dutch men are representatives of the Delft (the Netherlands) Public Library Concept Center and they came to the U.S. for their "Shanachie Tour." Their trip…

  8. Xiphidorus amazonensis n. sp. (Nematoda: Longidoridae) from the Brazilian Amazon Basin.

    PubMed

    Uesugi, C H; Huang, C S; Cares, J E

    1985-07-01

    Xiphidorus amazonensis n. sp. was found in the rhizospheres of Jatropha curcas, Musa sp., Anona muricata, Cassia tora, Panicum laxum, Paspalum fasciculatum, Aeschynomene sensitiva, Saccharum officinarum, Manihot esculenta, Abelmoschus esculentus, Tamarindus indica, Mangifera indica, Vigna unguiculata, Zea mays, Commelina sp., Cyperus rotundus, Fimbristylis miliacea, Citrus sinensis, and Eichhornia crassipes on the Amazon River island of Xiborena, approximately 40 km southeast of Manaus, capital of the State of Amazonas. The type habitat is flooded annually for about 6 months by the Amazon River. Xiphidorus amazonensis n. sp. differs from the closely related species Xiphidorus yepesara Monteiro, 1976 by the larger size, by a, b, and c values, and by the rounded tail terminus. It also resembles Xiphidorus tucumanensis Chaves and Coomans, 1984, but can be distinguished by its larger size, larger a, b, and c values, more conical female tail, bilobed amphidial pouch, and the presence of a spermatheca full of sperm. PMID:19294098

  9. Working memory contributes to the encoding of object location associations: Support for a 3-part model of object location memory.

    PubMed

    Gillis, M Meredith; Garcia, Sarah; Hampstead, Benjamin M

    2016-09-15

    A recent model by Postma and colleagues posits that the encoding of object location associations (OLAs) requires the coordination of several cognitive processes mediated by ventral (object perception) and dorsal (spatial perception) visual pathways as well as the hippocampus (feature binding) [1]. Within this model, frontoparietal network recruitment is believed to contribute to both the spatial processing and working memory task demands. The current study used functional magnetic resonance imaging (fMRI) to test each step of this model in 15 participants who encoded OLAs and performed standard n-back tasks. As expected, object processing resulted in activation of the ventral visual stream. Object in location processing resulted in activation of both the ventral and dorsal visual streams as well as a lateral frontoparietal network. This condition was also the only one to result in medial temporal lobe activation, supporting its role in associative learning. A conjunction analysis revealed areas of shared activation between the working memory and object in location phase within the lateral frontoparietal network, anterior insula, and basal ganglia; consistent with prior working memory literature. Overall, findings support Postma and colleague's model and provide clear evidence for the role of working memory during OLA encoding.

  10. Three-Verb Clusters in Interference Frisian: A Stochastic Model over Sequential Syntactic Input.

    PubMed

    Hoekstra, Eric; Versloot, Arjen

    2016-03-01

    Abstract Interference Frisian (IF) is a variety of Frisian, spoken by mostly younger speakers, which is heavily influenced by Dutch. IF exhibits all six logically possible word orders in a cluster of three verbs. This phenomenon has been researched by Koeneman and Postma (2006), who argue for a parameter theory, which leaves frequency differences between various orders unexplained. Rejecting Koeneman and Postma's parameter theory, but accepting their conclusion that Dutch (and Frisian) data are input for the grammar of IF, we will argue that the word order preferences of speakers of IF are determined by frequency and similarity. More specifically, three-verb clusters in IF are sensitive to: their linear left-to-right similarity to two-verb clusters and three-verb clusters in Frisian and in Dutch; the (estimated) frequency of two- and three-verb clusters in Frisian and Dutch. The model will be shown to work best if Dutch and Frisian, and two- and three-verb clusters, have equal impact factors. If different impact factors are taken, the model's predictions do not change substantially, testifying to its robustness. This analysis is in line with recent ideas that the sequential nature of human speech is more important to syntactic processes than commonly assumed, and that less burden need be put on the hierarchical dimension of syntactic structure.

  11. Three-Verb Clusters in Interference Frisian: A Stochastic Model over Sequential Syntactic Input.

    PubMed

    Hoekstra, Eric; Versloot, Arjen

    2016-03-01

    Abstract Interference Frisian (IF) is a variety of Frisian, spoken by mostly younger speakers, which is heavily influenced by Dutch. IF exhibits all six logically possible word orders in a cluster of three verbs. This phenomenon has been researched by Koeneman and Postma (2006), who argue for a parameter theory, which leaves frequency differences between various orders unexplained. Rejecting Koeneman and Postma's parameter theory, but accepting their conclusion that Dutch (and Frisian) data are input for the grammar of IF, we will argue that the word order preferences of speakers of IF are determined by frequency and similarity. More specifically, three-verb clusters in IF are sensitive to: their linear left-to-right similarity to two-verb clusters and three-verb clusters in Frisian and in Dutch; the (estimated) frequency of two- and three-verb clusters in Frisian and Dutch. The model will be shown to work best if Dutch and Frisian, and two- and three-verb clusters, have equal impact factors. If different impact factors are taken, the model's predictions do not change substantially, testifying to its robustness. This analysis is in line with recent ideas that the sequential nature of human speech is more important to syntactic processes than commonly assumed, and that less burden need be put on the hierarchical dimension of syntactic structure. PMID:27089805

  12. Working memory contributes to the encoding of object location associations: Support for a 3-part model of object location memory.

    PubMed

    Gillis, M Meredith; Garcia, Sarah; Hampstead, Benjamin M

    2016-09-15

    A recent model by Postma and colleagues posits that the encoding of object location associations (OLAs) requires the coordination of several cognitive processes mediated by ventral (object perception) and dorsal (spatial perception) visual pathways as well as the hippocampus (feature binding) [1]. Within this model, frontoparietal network recruitment is believed to contribute to both the spatial processing and working memory task demands. The current study used functional magnetic resonance imaging (fMRI) to test each step of this model in 15 participants who encoded OLAs and performed standard n-back tasks. As expected, object processing resulted in activation of the ventral visual stream. Object in location processing resulted in activation of both the ventral and dorsal visual streams as well as a lateral frontoparietal network. This condition was also the only one to result in medial temporal lobe activation, supporting its role in associative learning. A conjunction analysis revealed areas of shared activation between the working memory and object in location phase within the lateral frontoparietal network, anterior insula, and basal ganglia; consistent with prior working memory literature. Overall, findings support Postma and colleague's model and provide clear evidence for the role of working memory during OLA encoding. PMID:27233825

  13. Installation restoration program: Hydrologic measurements with an estimated hydrologic budget for the Joliet Army Ammunition Plant, Joliet, Illinois. [Contains maps of monitoring well locations, topography and hydrologic basins

    SciTech Connect

    Diodato, D.M.; Cho, H.E.; Sundell, R.C.

    1991-07-01

    Hydrologic data were gathered from the 36.8-mi{sup 2} Joliet Army Ammunition Plant (JAAP) located in Joliet, Illinois. Surface water levels were measured continuously, and groundwater levels were measured monthly. The resulting information was entered into a database that could be used as part of numerical flow model validation for the site. Deep sandstone aquifers supply much of the water in the JAAP region. These aquifers are successively overlain by confining shales and a dolomite aquifer of Silurian age. This last unit is unconformably overlain by Pleistocene glacial tills and outwash sand and gravel. Groundwater levels in the shallow glacial system fluctuate widely, with one well completed in an upland fluctuating more than 17 ft during the study period. The response to groundwater recharge in the underlying Silurian dolomite is slower. In the upland recharge areas, increased groundwater levels were observed; in the lowland discharge areas, groundwater levels decreased during the study period. The decreases are postulated to be a lag effect related to a 1988 drought. These observations show that fluid at the JAAP is not steady-state, either on a monthly or an annual basis. Hydrologic budgets were estimated for the two principal surface water basins at the JAAP site. These basins account for 70% of the facility's total land area. Meteorological data collected at a nearby dam show that total measured precipitation was 31.45 in. and total calculated evapotranspiration was 23.09 in. for the study period. The change in surface water storage was assumed to be zero for the annual budget for each basin. The change in groundwater storage was calculated to be 0.12 in. for the Grant Creek basin and 0. 26 in. for the Prairie Creek basin. Runoff was 7.02 in. and 7.51 in. for the Grant Creek and Prairie Creek basins, respectively. The underflow to the deep hydrogeologic system in the Grant Creek basin was calculated to be negligible. 12 refs., 17 figs., 15 tabs.

  14. Chemical and toxicological characterization of slurry reactor biotreatment of explosives-contaminated soils

    SciTech Connect

    Griest, W.H.; Stewart, A.J.; Vass, A.A.; Ho, C.H.

    1998-08-01

    Treatment of 2,4,6-trinitrotoluene (TNT)-contaminated soil in the Joliet Army Ammunition Plant (JAAP) soil slurry bioreactor (SSBR) eliminated detectable TNT but left trace levels of residual monoamino and diamino metabolites under some reactor operating conditions. The reduction of solvent-extractable bacterial mutagenicity in the TNT-contaminated soil was substantial and was similar to that achieved by static pile composts at the Umatilla Army Depot Activity (UMDA) field demonstration. Aquatic toxicity to Ceriodaphnia dubia from TNT in the leachates of TNT-contaminated soil was eliminated in the leachates of JAAP SSBR product soil. The toxicity of soil product leachates to Ceriodaphnia dubia was reasonably predicted using the specific toxicities of the components detected, weighted by their leachate concentrations. In samples where TNT metabolites were observed in the soil product and its leachates, this method determined that the contribution to predicted toxicity values was dominated by trace amounts of the diamino-metabolites, which are very toxic to ceriodaphnia dubia. When the SSBR operating conditions reduced the concentrations of TNT metabolites in the product soils and their leachates to undetectable concentrations, the main contributors to predicted aquatic toxicity values appeared to be molasses residues, potassium, and bicarbonate. Potassium and bicarbonate are beneficial or benign to the environment, and molasses residues are substantially degraded in the environment. Exotoxins, pathogenic bacteria, inorganic particles, ammonia, and dissolved metals did not appear to be important to soil product toxicity.

  15. A systematic revision of Baconia Lewis (Coleoptera, Histeridae, Exosternini)

    PubMed Central

    Caterino, Michael S.; Tishechkin, Alexey K.

    2013-01-01

    Abstract Here we present a complete revision of the species of Baconia. Up until now there have been 27 species assigned to the genus (Mazur, 2011), in two subgenera (Binhister Cooman and Baconia s. str.), with species in the Neotropical, Nearctic, Palaearctic, and Oriental regions. We recognize all these species as valid and correctly assigned to the genus, and redescribe all of them. We synonymize Binhister, previously used for a polyphyletic assemblage of species with varied relationships in the genus. We move four species into Baconia from other genera, and describe 85 species as new, bringing the total for the genus to 116 species. We divide these into 12 informal species groups, leaving 13 species unplaced to group. We present keys and diagnoses for all species, as well as habitus photos and illustrations of male genitalia for nearly all. The genus now contains the following species and species groups: Baconia loricata group [Baconia loricata Lewis, 1885, B. patula Lewis, 1885, Baconia gounellei (Marseul, 1887a), Baconia jubaris (Lewis, 1901), Baconia festiva (Lewis, 1891), Baconia foliosoma sp. n., Baconia sapphirina sp. n., Baconia furtiva sp. n., Baconia pernix sp. n., Baconia applanatis sp. n., Baconia disciformis sp. n., Baconia nebulosa sp. n., Baconia brunnea sp. n.], Baconia godmani group [Baconia godmani (Lewis, 1888), Baconia venusta (J. E. LeConte, 1845), Baconia riehli (Marseul, 1862), comb. n., Baconia scintillans sp. n., Baconia isthmia sp. n., Baconia rossi sp. n., Baconia navarretei sp. n., Baconia maculata sp. n., Baconia deliberata sp. n., Baconia excelsa sp. n., Baconia violacea (Marseul, 1853), Baconia varicolor (Marseul, 1887b), Baconia dives (Marseul, 1862), Baconia eximia (Lewis, 1888), Baconia splendida sp. n., Baconia jacinta sp. n., Baconia prasina sp. n., Baconia opulenta sp. n., Baconia illustris (Lewis, 1900), Baconia choaspites (Lewis, 1901), Baconia lewisi Mazur, 1984], Baconia salobrus group [Baconia salobrus (Marseul, 1887b

  16. Intermediate energy proton-deuteron elastic scattering

    NASA Technical Reports Server (NTRS)

    Wilson, J. W.

    1973-01-01

    A fully symmetrized multiple scattering series is considered for the description of proton-deuteron elastic scattering. An off-shell continuation of the experimentally known twobody amplitudes that retains the exchange symmeteries required for the calculation is presented. The one boson exchange terms of the two body amplitudes are evaluated exactly in this off-shell prescription. The first two terms of the multiple scattering series are calculated explicitly whereas multiple scattering effects are obtained as minimum variance estimates from the 146-MeV data of Postma and Wilson. The multiple scattering corrections indeed consist of low order partial waves as suggested by Sloan based on model studies with separable interactions. The Hamada-Johnston wave function is shown consistent with the data for internucleon distances greater than about 0.84 fm.

  17. Transversely isotropic elasticity and poroelasticity arising from thin isotropic layers

    SciTech Connect

    Berryman, J.G.

    1997-07-01

    Since the classic work of Postma [1955] and Backus [1962], much has been learned about elastic constants in vertical transversely isotropic (VTI) media when the anisotropy is due to fine layering of isotropic elastic materials. However, new results are still being discovered. For example, the P-wave anisotropy parameter c{sub 11}/c{sub 33} lies in the range 1/4 {<=} c{sub 11}/c{sub 33} {<=} <{lambda}+2{mu}><1/({lambda}+2{mu})>, when the layers are themselves composed of isotropic elastic materials with Lame constants {lambda} and {mu} and the vertical average of the layers is symbolized by <{center_dot}>. The lower bound corrects a result of Postma. For porous layers, a connected solid frame forms the basis of the elastic behavior of a poroelastic medium in the presence of confining forces, while connected pores permit a percolating fluid (if present) to influence the mechanical response of the system from within. For isotropic and anisotropic poroelastic media, we establish general formulas for the behavior of transversely isotropic poroelasticity arising from laminations of isotropic components. The Backus averaging method is shown to provide elementary means of constructing general formulas. The results for confined fluids are then compared with the more general Gassmann [1951] formulas that must be satisfied by any anisotropic poroelastic medium and found to be in complete agreement. Such results are important for applications to oil exploration using AVO (amplitude versus offset) since the presence or absence of a fluid component, as well as the nature of the fluid, is the critical issue and the ways in which the fluid influences seismic reflection data still need to be better understood.

  18. The application of Near-Infrared Reflectance Spectroscopy (NIRS) to detect melamine adulteration of soya bean meal.

    PubMed

    Haughey, Simon A; Graham, Stewart F; Cancouët, Emmanuelle; Elliott, Christopher T

    2013-02-15

    Soya bean products are used widely in the animal feed industry as a protein based feed ingredient and have been found to be adulterated with melamine. This was highlighted in the Chinese scandal of 2008. Dehulled soya (GM and non-GM), soya hulls and toasted soya were contaminated with melamine and spectra were generated using Near Infrared Reflectance Spectroscopy (NIRS). By applying chemometrics to the spectral data, excellent calibration models and prediction statistics were obtained. The coefficients of determination (R(2)) were found to be 0.89-0.99 depending on the mathematical algorithm used, the data pre-processing applied and the sample type used. The corresponding values for the root mean square error of calibration and prediction were found to be 0.081-0.276% and 0.134-0.368%, respectively, again depending on the chemometric treatment applied to the data and sample type. In addition, adopting a qualitative approach with the spectral data and applying PCA, it was possible to discriminate between the four samples types and also, by generation of Cooman's plots, possible to distinguish between adulterated and non-adulterated samples.

  19. The impact of compulsory cycle helmet legislation on cyclist head injuries in New South Wales, Australia: a rejoinder.

    PubMed

    Rissel, Chris

    2012-03-01

    This paper challenges the conclusion of a recent paper by Walter et al. (Accident Analysis and Prevention 2011, doi:10.1016/j.aap.2011.05.029) reporting that despite numerous data limitations repealing the helmet legislation in Australia could not be justified. This conclusion is not warranted because of the limited time period used in their analysis and the lack of data beyond a few years before the introduction of legislation, the failure to adequately account for the effect of the phasing in of the legislation, the effect of the marked reduction in child cyclists, and the non-comparability of the pedestrian and cycling injuries and related lack of consideration of the severity of head injuries. The extent to which helmet legislation deters people from cycling is discussed. PMID:22269491

  20. Uptake of explosives from contaminated soil by vegetation at the Joliet Army Ammunition Plant

    SciTech Connect

    Schneider, J.F.; Tomczyk, N.A.; Zellmer, S.D.; Banwart, W.L.; Houser, W.P.

    1994-06-01

    This study examines the uptake of explosives by vegetation growing on soils contaminated by 2,4,6-trinitrotoluene (TNT) in Group 61 at the Joliet Army Ammunition Plant (JAAP). Plant materials and soil from the root zone were sampled and analyzed to determine TNT uptake under natural field conditions. Standard USATHAMA methods were used to determine concentrations of explosives, their derivatives, and metabolites in the soil samples. No- explosives were detected in the aboveground portion of any plant sample. However, results indicate that TNT, 2-aminodinitrotoluene (2-ADNT), and/or 4-ADNT were present in some root samples. The presence of 2-ADNT and 4-ADNT increases the likelihood that explosives were taken up by plant roots, as opposed to their presence resulting from external soil contamination.

  1. Description of two new and six known species of the genus Tylencholaimus de Man, 1876 (Nematoda: Dorylaimida) with a diagnostic compendium and key to species.

    PubMed

    Ahad, Sumaya; Ahmad, Wasim

    2016-01-01

    Two new and six known species of the soil-inhabiting nematode genus Tylencholaimus de Man, 1876 are described and illustrated. Tylencholaimus arakii sp. n. is characterized by having 0.56-0.65 mm long body; lip region cap-like, set off by a shallow constriction; labial disc present; odontostyle 7-8 µm and odontophore 7-8 µm long, with well-developed, asymmetrical basal knobs; total spear length 15 μm; pharynx with slender anterior part which expands abruptly into the cylindrical basal bulb occupying about 45-47% of total neck length; female genital system mono-prodelphic; transverse vulva and short, hemispheroid tail. Tylencholaimus ladakhiensis sp. n. is characterized by having 0.56-0.73 mm long, slender body; lip region cap-like, set off by a slight constriction; amphid aperture slit-like; odontostyle slender 7-9 µm, with comparatively narrow lumen, odontophore 8-9 µm long; pharynx with slender anterior part which expands abruptly into the cylindrical basal bulb, occupying about 38-45% of total neck length; female genital system didelphic-amphidelphic and rounded-conoid tail, with distinct terminal caudal pore. Tylencholaimus proximus Thorne, 1939; Tylencholaimus mongolicus Andrássy, 1967; Tylencholaimus vulvulatus Rahman, Jairajpuri, Ahmad & Ahmad, 1987; Tylencholaimus ibericus Peña-Santiago & Coomans, 1994; Tylencholaimus imperanus Mohilal & Dhanachand, 2003 and Tylencholaimus cosmos (Dhanam & Jairajpuri, 1999) Peña-Santiago, 2008 are redescribed. Tylencholaimus proximus and Tylencholaimus mongolicus are reported for the first time from India and a male is reported for the first time for T. imperanus. A diagnostic key and compendium to species of the genus Tylencholaimus is provided. PMID:27394836

  2. Two semiconductor ring lasers coupled by a single-waveguide for optical memory operation

    NASA Astrophysics Data System (ADS)

    Van der Sande, Guy; Coomans, Werner; Gelens, Lendert

    2014-05-01

    Semiconductor ring lasers are semiconductor lasers where the laser cavity consists of a ring-shaped waveguide. SRLs are highly integrable and scalable, making them ideal candidates for key components in photonic integrated circuits. SRLs can generate light in two counterpropagating directions between which bistability has been demonstrated. Hence, information can be coded into the emission direction. This bistable operation allows SRLs to be used in systems for all-optical switching and as all-optical memories. For the demonstration of fast optical flip-flop operation, Hill et al. [Nature 432, 206 (2004)] fabricated two SRLs coupled by a single waveguide, rather than a solitary SRL. Nevertheless, the literature shows that a single SRL can also function perfectly as an all-optical memory. In our recent paper [W. Coomans et al., Phys. Rev. A 88, 033813, (2013)], we have raised the question whether coupling two SRLs to realize a single optical memory has any advantage over using a solitary SRL, taking into account the obvious disadvantage of a doubled footprint and power consumption. To provide the answer, we have presented in that paper a numerical study of the dynamical behavior of semiconductor ring lasers coupled by a single bus waveguide, both when weakly coupled and when strongly coupled. We have provided a detailed analysis of the multistable landscape in the coupled system, analyzed the stability of all solutions and related the internal dynamics in the individual lasers to the field effectively measured at the output of the waveguide. We have shown which coupling phases generally promote instabilities and therefore need to be avoided in the design. Regarding all-optical memory operation, we have demonstrated that there is no real advantage for bistable memory operation compared to using a solitary SRL. An increased power suppression ratio has been found to be mainly due to the destructive interference of the SRL fields at the low power port. Also

  3. A systematic revision of Baconia Lewis (Coleoptera, Histeridae, Exosternini)

    PubMed Central

    Caterino, Michael S.; Tishechkin, Alexey K.

    2013-01-01

    Abstract Here we present a complete revision of the species of Baconia. Up until now there have been 27 species assigned to the genus (Mazur, 2011), in two subgenera (Binhister Cooman and Baconia s. str.), with species in the Neotropical, Nearctic, Palaearctic, and Oriental regions. We recognize all these species as valid and correctly assigned to the genus, and redescribe all of them. We synonymize Binhister, previously used for a polyphyletic assemblage of species with varied relationships in the genus. We move four species into Baconia from other genera, and describe 85 species as new, bringing the total for the genus to 116 species. We divide these into 12 informal species groups, leaving 13 species unplaced to group. We present keys and diagnoses for all species, as well as habitus photos and illustrations of male genitalia for nearly all. The genus now contains the following species and species groups: Baconia loricata group [Baconia loricata Lewis, 1885, B. patula Lewis, 1885, Baconia gounellei (Marseul, 1887a), Baconia jubaris (Lewis, 1901), Baconia festiva (Lewis, 1891), Baconia foliosoma sp. n., Baconia sapphirina sp. n., Baconia furtiva sp. n., Baconia pernix sp. n., Baconia applanatis sp. n., Baconia disciformis sp. n., Baconia nebulosa sp. n., Baconia brunnea sp. n.], Baconia godmani group [Baconia godmani (Lewis, 1888), Baconia venusta (J. E. LeConte, 1845), Baconia riehli (Marseul, 1862), comb. n., Baconia scintillans sp. n., Baconia isthmia sp. n., Baconia rossi sp. n., Baconia navarretei sp. n., Baconia maculata sp. n., Baconia deliberata sp. n., Baconia excelsa sp. n., Baconia violacea (Marseul, 1853), Baconia varicolor (Marseul, 1887b), Baconia dives (Marseul, 1862), Baconia eximia (Lewis, 1888), Baconia splendida sp. n., Baconia jacinta sp. n., Baconia prasina sp. n., Baconia opulenta sp. n., Baconia illustris (Lewis, 1900), Baconia choaspites (Lewis, 1901), Baconia lewisi Mazur, 1984], Baconia salobrus group [Baconia salobrus (Marseul, 1887b

  4. SPARC-90: A code for calculating fission product capture in suppression pools

    SciTech Connect

    Owczarski, P.C.; Burk, K.W. )

    1991-10-01

    This report describes the technical bases and use of two updated versions of a computer code initially developed to serve as a tool for calculating aerosol particle retention in boiling water reactor (BWR) pressure suppression pools during severe accidents, SPARC-87 and SPARC-90. The most recent version is SPARC-90. The initial or prototype version (Owczarski, Postma, and Schreck 1985) was improved to include the following: rigorous treatment of local particle deposition velocities on the surface of oblate spherical bubbles, new correlations for hydrodynamic behavior of bubble swarms, models for aerosol particle growth, both mechanistic and empirical models for vent exit region scrubbing, specific models for hydrodynamics of bubble breakup at various vent types, and models for capture of vapor iodine species. A complete user's guide is provided for SPARC-90 (along with SPARC-87). A code description, code operating instructions, partial code listing, examples of the use of SPARC-90, and summaries of experimental data comparison studies also support the use of SPARC-90. 29 refs., 4 figs., 11 tabs.

  5. Rescuing psychoanalysis from Freud: the common project of Stekel, Jung and Ferenczi.

    PubMed

    Rudnytsky, Peter L

    2006-01-01

    This article offers an extended discussion of Wilhelm Stekel's "On the History of the Analytic Movement" (1926), published in English translation for the first time in "Psychoanalysis and History" 7(1) in 2005. It begins with a critique of the presentation of Stekel's text by Jaap Bos, who takes a purely rhetorical approach that seeks to exclude a psychological analysis of the author's motives. Bos's characterization of Stekel is likewise contested as unduly negative in crucial respects. The second section argues that it remains the task of the historian to search for truth. Attacks on the credibility of Jung by Harold Blum and Kurt Eissler are shown to reflect a bias that causes them to neglect the empirical evidence corroborating Jung's testimony concerning key events in his relationship to Freud. The third section lays out the numerous ways in which Stekel, Jung and Ferenczi independently arrived at remarkably similar judgements concerning Freud's character, and how his human failings exerted a harmful effect on the development of psychoanalysis. The final section moves to a discussion of how Stekel joins with Jung and Ferenczi in defining a common project of rescuing what is best in psychoanalysis from Freud's demands for personal loyalty and his attempts to subjugate his followers to intellectual tyranny.

  6. Virology Experts in the Boundary Zone Between Science, Policy and the Public: A Biographical Analysis

    PubMed Central

    2010-01-01

    This article aims to open up the biographical black box of three experts working in the boundary zone between science, policy and public debate. A biographical-narrative approach is used to analyse the roles played by the virologists Albert Osterhaus, Roel Coutinho and Jaap Goudsmit in policy and public debate. These figures were among the few leading virologists visibly active in the Netherlands during the revival of infectious diseases in the 1980s. Osterhaus and Coutinho in particular are still the key figures today, as demonstrated during the outbreak of novel influenza A (H1N1). This article studies the various political and communicative challenges and dilemmas encountered by these three virologists, and discusses the way in which, strategically or not, they handled those challenges and dilemmas during the various stages of the field’s recent history. Important in this respect is their pursuit of a public role that is both effective and credible. We will conclude with a reflection on the H1N1 pandemic, and the historical and biographical ties between emerging governance arrangements and the experts involved in the development of such arrangements. PMID:20676213

  7. Uptake of explosives from contaminated soil by existing vegetation at the Joliet Army Ammunition Plant

    SciTech Connect

    Schneider, J.F.; Tomczyk, N.A.; Zellmer, S.D.; Banwart, W.L. |

    1994-01-01

    This study examines the uptake of explosives by existing vegetation growing in TNT-contaminated soils on Group 61 at the Joliet Army Ammunition Plant (JAAP). The soils in this group were contaminated more than 40 years ago. In this study, existing plant materials and soil from the root zone were sampled from 15 locations and analyzed to determine TNT uptake by plants under natural field conditions. Plant materials were separated by species if more than one species was present at a sampling location. Standard methods were used to determine concentrations of explosives, their derivatives, and metabolites in the soil samples. Plant materials were also analyzed. No. explosives were detected in the aboveground portion of any plant sample. However, the results indicate that TNT, 2-amino DNT, and/or 4-amino DNT were found in some root samples of false boneset (Kuhnia eupatorioides), teasel (Dipsacus sylvestris), and bromegrass (Bromus inermis). It is possible that slight soil contamination remained on the roots, especially in the case of the very fine roots for species like bromegrass, where washing was difficult. The presence of 2-amino DNT and 4-amino DNT, which could be plant metabolites of TNT, increases the likelihood that explosives were taken up by plant roots, as opposed to their presence resulting from external soil contamination.

  8. "In search of a tale they can live with": about loss, family secrets, and selective disclosure.

    PubMed

    Rober, Peter; Walravens, Geertje; Versteynen, Leen

    2012-07-01

    Several authors have written about family secrets in the family therapy literature in interesting ways. According to these authors, the questions "who knows the secret?" and "who does not know the secret?" are central. In the present study, we have qualitatively analyzed the documentary film Familiegeheim (Family Secret) by the Dutch director Jaap van Hoewijk. The film shows van Hoewijk's investigation into the death of his father in 1974 and tells the story of a family in which the suicide of the father is kept secret from the three children. Our analysis of the film highlights the complex ways in which families deal with sensitive issues like loss, grief, and suicide. The concept of family secrets seems to poorly capture this complexity, focusing one-sidedly on the destructive effects of withholding delicate information. The concept of selective disclosure is proposed as an alternative. Selective disclosure refers to the complex processes involved in dealing with the dialectic tension between sharing information and keeping it secret. The concept is not only focused on the destructiveness of secrecy but, in addition, also makes room for an appreciation of the caution with which family members deal with sensitive family issues.

  9. Adaptive Sampling approach to environmental site characterization at Joliet Army Ammunition Plant: Phase 2 demonstration

    SciTech Connect

    Bujewski, G.E.; Johnson, R.L.

    1996-04-01

    Adaptive sampling programs provide real opportunities to save considerable time and money when characterizing hazardous waste sites. This Strategic Environmental Research and Development Program (SERDP) project demonstrated two decision-support technologies, SitePlanner{trademark} and Plume{trademark}, that can facilitate the design and deployment of an adaptive sampling program. A demonstration took place at Joliet Army Ammunition Plant (JAAP), and was unique in that it was tightly coupled with ongoing Army characterization work at the facility, with close scrutiny by both state and federal regulators. The demonstration was conducted in partnership with the Army Environmental Center`s (AEC) Installation Restoration Program and AEC`s Technology Development Program. AEC supported researchers from Tufts University who demonstrated innovative field analytical techniques for the analysis of TNT and DNT. SitePlanner{trademark} is an object-oriented database specifically designed for site characterization that provides an effective way to compile, integrate, manage and display site characterization data as it is being generated. Plume{trademark} uses a combination of Bayesian analysis and geostatistics to provide technical staff with the ability to quantitatively merge soft and hard information for an estimate of the extent of contamination. Plume{trademark} provides an estimate of contamination extent, measures the uncertainty associated with the estimate, determines the value of additional sampling, and locates additional samples so that their value is maximized.

  10. Detection of epithelial ovarian cancer using 1H-NMR-based metabonomics.

    PubMed

    Odunsi, Kunle; Wollman, Robert M; Ambrosone, Christine B; Hutson, Alan; McCann, Susan E; Tammela, Jonathan; Geisler, John P; Miller, Gregory; Sellers, Thomas; Cliby, William; Qian, Feng; Keitz, Bernadette; Intengan, Marilyn; Lele, Shashikant; Alderfer, James L

    2005-02-20

    Currently available serum biomarkers are insufficiently reliable to distinguish patients with epithelial ovarian cancer (EOC) from healthy individuals. Metabonomics, the study of metabolic processes in biologic systems, is based on the use of (1)H-NMR spectroscopy and multivariate statistics for biochemical data generation and interpretation and may provide a characteristic fingerprint in disease. In an effort to examine the utility of the metabonomic approach for discriminating sera from women with EOC from healthy controls, we performed (1)H-NMR spectroscopic analysis on preoperative serum specimens obtained from 38 patients with EOC, 12 patients with benign ovarian cysts and 53 healthy women. After data reduction, we applied both unsupervised Principal Component Analysis (PCA) and supervised Soft Independent Modeling of Class Analogy (SIMCA) for pattern recognition. The sensitivity and specificity tradeoffs were summarized for each variable using the area under the receiver-operating characteristic (ROC) curve. In addition, we analyzed the regions of NMR spectra that most strongly influence separation of sera of EOC patients from healthy controls. PCA analysis allowed correct separation of all serum specimens from 38 patients with EOC (100%) from all of the 21 premenopausal normal samples (100%) and from all the sera from patients with benign ovarian disease (100%). In addition, it was possible to correctly separate 37 of 38 (97.4%) cancer specimens from 31 of 32 (97%) postmenopausal control sera. SIMCA analysis using the Cooman's plot demonstrated that sera classes from patients with EOC, benign ovarian cysts and the postmenopausal healthy controls did not share multivariate space, providing validation for the class separation. ROC analysis indicated that the sera from patients with and without disease could be identified with 100% sensitivity and specificity at the (1)H-NMR regions 2.77 parts per million (ppm) and 2.04 ppm from the origin (AUC of ROC curve = 1

  11. The Effects of Naltrexone on Subjective Response to Methamphetamine in a Clinical Sample: a Double-Blind, Placebo-Controlled Laboratory Study.

    PubMed

    Ray, Lara A; Bujarski, Spencer; Courtney, Kelly E; Moallem, Nathasha R; Lunny, Katy; Roche, Daniel; Leventhal, Adam M; Shoptaw, Steve; Heinzerling, Keith; London, Edythe D; Miotto, Karen

    2015-09-01

    Methamphetamine (MA) use disorder is a serious psychiatric condition for which there are no FDA-approved medications. Naltrexone (NTX) is an opioid receptor antagonist with demonstrated efficacy, albeit moderate, for the treatment of alcoholism and opioid dependence. Preclinical and clinical studies suggest that NTX may be useful for the treatment of MA use disorder. To inform treatment development, we conducted a double-blind, randomized, crossover, placebo-controlled human laboratory study of NTX. Non-treatment-seeking individuals meeting DSM-IV criteria for MA abuse or dependence (n=30) completed two separate 5-day inpatient stays. During each admission, participants completed testing sessions comprised of MA cue-reactivity and intravenous MA administration (30 mg) after receiving oral NTX (50 mg) or placebo for 4 days. This study tested the hypotheses that NTX would (a) attenuate cue-induced MA craving, and (b) reduce subjective responses to MA administration. Results largely supported the study hypotheses such that (a) NTX significantly blunted cue-induced craving for MA and (b) attenuated several of the hedonic subjective effects of MA, including craving, during controlled MA administration and as compared with placebo. NTX decreased overall subjective ratings of 'crave drug,' 'stimulated,' and 'would like drug access,' decreased the the post-MA administration timecourse of 'anxious' and increased ratings of 'bad drug effects,' as compared with placebo. These findings support a potential mechanism of action by showing that NTX reduced cue-induced craving and subjective responses to MA. This is consistent with positive treatment studies of NTX for amphetamine dependence, as well as ongoing clinical trials for MA.

  12. A novel fermentation strategy for removing the key inhibitor acetic acid and efficiently utilizing the mixed sugars from lignocellulosic hydrolysates

    SciTech Connect

    Mark A. Eiteman PHD; Elliot Altman Phd

    2009-02-11

    As part of preliminary research efforts, we have completed several experiments which demonstrate 'proof of concept.' These experiments addressed the following three questions: (1) Can a synthetic mixed sugar solution of glucose and xylose be efficiently consumed using the multi-organism approach? (2) Can this approach be used to accumulate a model product? (3) Can this approach be applied to the removal of an inhibitor, acetate, selectively from mixtures of xylose and glucose? To answer the question of whether this multi-organism approach can effectively consume synthetic mixed sugar solutions, we first tested substrate-selective uptake using two strains, one unable to consume glucose and one unable to consume xylose. The xylose-selective strain ALS998 has mutations in the three genes involved in glucose uptake, rendering it unable to consume glucose: ptsG codes for the Enzyme IICB{sup Glc} of the phosphotransferase system (PTS) for carbohydrate transport (Postma et al., 1993), manZ codes for the IID{sup Man} domain of the mannose PTS permease (Huber, 1996), glk codes for glucokinase (Curtis and Epstein 1975) We also constructed strain ALS1008 which has a knockout in the xylA gene encoding for xylose isomerase, rendering ALS1008 unable to consume xylose. Two batch experiments and one continuous bioprocess were completed. In the first experiment, each strain was grown separately in a defined medium of 8 g/L xylose and 15 g/L glucose which represented xylose and glucose concentrations that can be generated by actual biomass. In the second experiment, the two strains were grown together in batch in the same defined, mixed-sugar medium. In a third experiment, we grew the strains continuously in a 'chemostat', except that we shifted the concentrations of glucose and xylose periodically to observe how the system would respond. (For example, we shifted the glucose concentration suddenly from 15 g/L to 30 g/L in the feed).

  13. Multilevel fitting of {sup 235}U resonance data sensitive to Bohr-and Brosa-fission channels

    SciTech Connect

    Moore, M.S.

    1995-05-01

    The recent determination of the K, J dependence of the neutron induced fission cross section of {sup 235}U by the Dubna group has led to a renewed interest in the mechanism of fission from saddle to scission. The K quantum numbers designate the so-called Bohr fission channels, which describe the fission properties at the saddle point. Certain other fission properties, e.g., the fragment mass and kinetic-energy distribution, are related to the properties of the scission point. The neutron energy dependence of the fragment kinetic energies has been measured by Hambsch et al., who analyzed their data according to a channel description of Brosa et al. How these two channel descriptions, the saddle-point Bohr channels and the scission-point Brosa channels, relate to one another is an open question, and is the subject matter of the present paper. We use the correlation coefficient between various data sets, in which variations are reported from resonance to resonance, as a measure of both-the statistical reliability of the data and of the degree to which different scission variables relate to different Bohr channels. We have carried out an adjustment of the ENDF/B-VI multilevel evaluation of the fission cross section of {sup 235}U, one that provides a reasonably good fit to the energy dependence of the fission, capture, and total cross sections below 100 eV, and to the Bohr-channel structure deduced from an earlier measurement by Pattenden and Postma. We have also further explored the possibility of describing the data of Hambsch et al. in the Brosa-channel framework with the same set of fission-width vectors, only in a different reference system. While this approach shows promise, it is clear that better data are also needed for the neutron energy variation of the scission-point variables.

  14. Evaluation of soil toxicity at Joliet Army Ammunition Plant

    SciTech Connect

    Simini, M.; Amos, J.C.; Wentsel, R.S.; Checkai, R.T.; Phillips, C.T.; Chester, N.A.; Major, M.A.

    1995-04-01

    Environmental toxicity testing and chemical analyses of soil were performed as part of an ecological risk assessment at the Joliet Army Ammunition Plant (JAAP), Joliet, Illinois. Soils were collected from an area where munitions were loaded, assembled, and packed (area L7, group 1), and from an area where waste explosives were burned on unprotected soil (area L2). Control samples were collected from an adjacent field. Soil toxicity was determined using early seedling growth and vigor tests, earthworm survival and growth tests, and Microtox{reg_sign} assays. Relative toxicity of soils was determined within each area based on statistical significant (p = 0.05) of plant and earthworm growth and survival, and the effective concentration at which luminescence of the bacterium Photobacterium phosphoreum was reduced by 50% (EC50) in the Microtox assay. Samples were designated as having high, moderate, or no significant toxicity. Soil that had significant toxicity according to at least one test, and representative samples showing no toxicity, were analyzed for munitions via HPLC. Chemical residues found in soils were 2,4,6-trinitrotoluene (TNT); 1,3,5-trinitrobenzene (TNB); 2,4-dinitrotoluene (2,4-DNT); 2,6-dinitrotoluene; 2-amino-4,6-DNT; 4-amino-2,6-DNT; 1,3,5-trinitro-1,3,5-triazine (RDX); and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX). All soils with no significant toxicity were void of these chemicals. However, some soils void of munitions still showed toxicity that may have been caused by elevated levels of heavy metals. Linear regressions of toxicity test results vs. chemical concentrations showed that TNT and TNB accounted for most off the soil toxicity. Lowest-observable-effect concentrations (LOEC) of TNT were determined from these data. This study presents a simple, relatively inexpensive methodology for assessing toxicity of soils containing TNT, RDX, and other contaminants related to munitions production.

  15. "Affective contingencies in the affiliative domain: Physiological assessment, associations with the affiliation motive, and prediction of behavior": Correction to Dufner et al. (2015).

    PubMed

    2016-06-01

    Reports an error in "Affective contingencies in the affiliative domain: Physiological assessment, associations with the affiliation motive, and prediction of behavior" by Michael Dufner, Ruben C. Arslan, Birk Hagemeyer, Felix D. Schönbrodt and Jaap J. A. Denissen (Journal of Personality and Social Psychology, 2015[Oct], Vol 109[4], 662-676). In this article an erroneous statement was made regarding the high cutoff filter for the EMG raw signal. The high cutoff filter reported in Appendix B in the Technical Details of the EMG Recording Procedure section should be 300 Hz. (The following abstract of the original article appeared in record 2015-37761-001.) According to classical motive disposition theory, individuals differ in their propensity to derive pleasure from affiliative experiences. This propensity is considered a core process underlying the affiliation motive and a pervasive cause of motivated behavior. In this study, we tested these assumptions. We presented participants with positive affiliative stimuli and used electromyography to record changes in facial muscular activity that are indicative of subtle smiling. We were thus able to physiologically measure positive affect following affiliative cues. Individual differences in these affective contingencies were internally consistent and temporally stable. They converged with affiliation motive self- and informant reports and picture story exercise scores, indicating that they are partly accessible to the self, observable to outsiders, and overlap with implicit systems. Finally, they predicted affiliative behavior in terms of situation selection and modification across a wide variety of contexts (i.e., in daily life, the laboratory, and an online social network). These findings corroborate the long-held assumption that affective contingencies represent a motivational core aspect of affiliation. (PsycINFO Database Record PMID:27281355

  16. Thermochemolysis and the Search for Organic Material on Mars Onboard the MOMA Experiment

    NASA Astrophysics Data System (ADS)

    Morisson, Marietta; Buch, Arnaud; Szopa, Cyril; Glavin, Daniel; Freissinet, Carolinette; Pinnick, Veronica; Goetz, Walter; Stambouli, Moncef; Belmahdi, Imene; Coll, Patrice; Stalport, Fabien; Grand, Noël; Brinckerhoff, William; Goesmann, Fred; Raulin, François; Mahaffy, Paul

    2016-04-01

    Following the Sample Analysis at Mars (SAM) experiment onboard the Curiosity rover, the Mars Organic Molecule Analyzer (MOMA) experiment onboard the future ExoMars 2018 mission will continue to investigate the organic composition of the martian subsurface. MOMA will have the advantage of extracting the sample from as deep as 2 meters below the martian surface where the deleterious effects of radiation and oxidation on organic matter are minimized. To analyse the wide range of organic compounds (volatile and non-volatile compounds) potentially present in the martian soil, MOMA includes two operational modes: UV laser desorption / ionization ion trap mass spectrometry (LDI-ITMS) and pyrolysis gas chromatography ion trap mass spectrometry (pyr-GC-ITMS). In order to analyse refractory organic compounds and chirality, samples which undergo GC-ITMS analysis may be derivatized beforhands, consisting in the reaction of the sample components with specific chemical reagents (MTBSTFA [1], DMF-DMA [2] or TMAH [3]). To prove the feasibility of the derivatization within the MOMA conditions we have adapated our laboratory procedure for the space conditions (temperature, time, pressure and size). Goal is optimize our detection limits and increase the range of the organic compounds that MOMA will be able to detect. Results of this study, show that Thermochemolysis is one of the most promising technique onboard MOMA to detect organic material. References : [1] Buch, A. et al. (2009) J Chrom. A, 43, 143-151. [2] Freissinet, C. et al. (2013) J Chrom. A, 1306, 731-740. [3] Geffroy-Rodier, C. et al. (2009) JAAP, 85, 454-459.

  17. End-To-END Performance of the Future MOMA Instrument Aboard the ExoMars Mission

    NASA Astrophysics Data System (ADS)

    Pinnick, V. T.; Buch, A.; Szopa, C.; Grand, N.; Danell, R.; Grubisic, A.; van Amerom, F. H. W.; Glavin, D. P.; Freissinet, C.; Coll, P. J.; Stalport, F.; Humeau, O.; Arevalo, R. D., Jr.; Brinckerhoff, W. B.; Steininger, H.; Goesmann, F.; Raulin, F.; Mahaffy, P. R.

    2015-12-01

    Following the SAM experiment aboard the Curiosity rover, the Mars Organic Molecule Analyzer (MOMA) experiment aboard the 2018 ExoMars mission will be the continuation of the search for organic matter on the Mars surface. One advancement with the ExoMars mission is that the sample will be extracted as deep as 2 meters below the Martian surface to minimize effects of radiation and oxidation on organic materials. To analyze the wide range of organic composition (volatile and non-volatile compounds) of the Martian soil, MOMA is equipped with a dual ion source ion trap mass spectrometer utilizing UV laser desorption / ionization (LDI) and pyrolysis gas chromatography (pyr-GC). In order to analyze refractory organic compounds and chiral molecules during GC-ITMS analysis, samples may be submitted to a derivatization process, consisting of the reaction of the sample components with specific reactants (MTBSTFA [1], DMF-DMA [2] or TMAH [3]). Previous experimental reports have focused on coupling campaigns between the breadboard versions of the GC, provided by the French team (LISA, LATMOS, CentraleSupelec), and the MS, provided by the US team (NASA-GSFC). This work focuses on the performance verification and optimization of the GC-ITMS experiment using the Engineering Test Unit (ETU) models which are representative of the form, fit and function of the flight instrument including a flight-like pyrolysis oven and tapping station providing by the German team (MPS). The results obtained demonstrate the current status of the end-to-end performance of the gas chromatography-mass spectrometry mode of operation. References: [1] Buch, A. et al. (2009) J Chrom. A, 43, 143-151. [2] Freissinet et al. (2011) J Chrom A, 1306, 59-71. [3] Geffroy-Rodier, C. et al. (2009) JAAP, 85, 454-459.

  18. Air Pollution and Lung Function in Dutch Children: A Comparison of Exposure Estimates and Associations Based on Land Use Regression and Dispersion Exposure Modeling Approaches

    PubMed Central

    Gehring, Ulrike; Hoek, Gerard; Keuken, Menno; Jonkers, Sander; Beelen, Rob; Eeftens, Marloes; Postma, Dirkje S.; Brunekreef, Bert

    2015-01-01

    Background There is limited knowledge about the extent to which estimates of air pollution effects on health are affected by the choice for a specific exposure model. Objectives We aimed to evaluate the correlation between long-term air pollution exposure estimates using two commonly used exposure modeling techniques [dispersion and land use regression (LUR) models] and, in addition, to compare the estimates of the association between long-term exposure to air pollution and lung function in children using these exposure modeling techniques. Methods We used data of 1,058 participants of a Dutch birth cohort study with measured forced expiratory volume in 1 sec (FEV1), forced vital capacity (FVC), and peak expiratory flow (PEF) measurements at 8 years of age. For each child, annual average outdoor air pollution exposure [nitrogen dioxide (NO2), mass concentration of particulate matter with diameters ≤ 2.5 and ≤ 10 μm (PM2.5, PM10), and PM2.5 soot] was estimated for the current addresses of the participants by a dispersion and a LUR model. Associations between exposures to air pollution and lung function parameters were estimated using linear regression analysis with confounder adjustment. Results Correlations between LUR- and dispersion-modeled pollution concentrations were high for NO2, PM2.5, and PM2.5 soot (R = 0.86–0.90) but low for PM10 (R = 0.57). Associations with lung function were similar for air pollutant exposures estimated using LUR and dispersion modeling, except for associations of PM2.5 with FEV1 and FVC, which were stronger but less precise for exposures based on LUR compared with dispersion model. Conclusions Predictions from LUR and dispersion models correlated very well for PM2.5, NO2, and PM2.5 soot but not for PM10. Health effect estimates did not depend on the type of model used to estimate exposure in a population of Dutch children. Citation Wang M, Gehring U, Hoek G, Keuken M, Jonkers S, Beelen R, Eeftens M, Postma DS, Brunekreef B

  19. Elemental Constituents of Particulate Matter and Newborn’s Size in Eight European Cohorts

    PubMed Central

    Pedersen, Marie; Gehring, Ulrike; Beelen, Rob; Wang, Meng; Giorgis-Allemand, Lise; Andersen, Anne-Marie Nybo; Basagaña, Xavier; Bernard, Claire; Cirach, Marta; Forastiere, Francesco; de Hoogh, Kees; Gruzieva, Olena; Hoek, Gerard; Jedynska, Aleksandra; Klümper, Claudia; Kooter, Ingeborg M.; Krämer, Ursula; Kukkonen, Jaakko; Porta, Daniela; Postma, Dirkje S.; Raaschou-Nielsen, Ole; van Rossem, Lenie; Sunyer, Jordi; Sørensen, Mette; Tsai, Ming-Yi; Vrijkotte, Tanja G. M.; Wilhelm, Michael; Nieuwenhuijsen, Mark J.; Pershagen, Göran; Brunekreef, Bert; Kogevinas, Manolis; Slama, Rémy

    2015-01-01

    Background The health effects of suspended particulate matter (PM) may depend on its chemical composition. Associations between maternal exposure to chemical constituents of PM and newborn’s size have been little examined. Objective We aimed to investigate the associations of exposure to elemental constituents of PM with term low birth weight (LBW; weight < 2,500 g among births after 37 weeks of gestation), mean birth weight, and head circumference, relying on standardized fine-scale exposure assessment and with extensive control for potential confounders. Methods We pooled data from eight European cohorts comprising 34,923 singleton births in 1994–2008. Annual average concentrations of elemental constituents of PM ≤ 2.5 and ≤ 10 μm (PM2.5 and PM10) at maternal home addresses during pregnancy were estimated using land-use regression models. Adjusted associations between each birth measurement and concentrations of eight elements (copper, iron, potassium, nickel, sulfur, silicon, vanadium, and zinc) were calculated using random-effects regression on pooled data. Results A 200-ng/m3 increase in sulfur in PM2.5 was associated with an increased risk of LBW (adjusted odds ratio = 1.36; 95% confidence interval: 1.17, 1.58). Increased nickel and zinc in PM2.5 concentrations were also associated with an increased risk of LBW. Head circumference was reduced at higher exposure to all elements except potassium. All associations with sulfur were most robust to adjustment for PM2.5 mass concentration. All results were similar for PM10. Conclusion Sulfur, reflecting secondary combustion particles in this study, may adversely affect LBW and head circumference, independently of particle mass. Citation Pedersen M, Gehring U, Beelen R, Wang M, Giorgis-Allemand L, Andersen AM, Basagaña X, Bernard C, Cirach M, Forastiere F, de Hoogh K, Gražulevičienė R, Gruzieva O, Hoek G, Jedynska A, Klümper C, Kooter IM, Krämer U, Kukkonen J, Porta D, Postma DS, Raaschou-Nielsen O

  20. Impact of discharge and sediment flux on basin margin architecture: an experimental approach.

    NASA Astrophysics Data System (ADS)

    van den Berg van Saparoea, A. P. H.; Postma, G.

    2003-04-01

    for shelf valleys to connect with the trunk river occurs earlier in the latter case, which means that even though the system is fluvial dominated (i.e. strongly progradational), the influence of sea-level fluctuation on the fluvial domain is strong. [1] Van Heijst, M.W.I.M. and Postma, G. (2001) Fluvial response to sea-level changes: a quantitative analogue, experimental approach. Basin Research, 13, 269-292.

  1. Hydrology, sediment circulation and long-term morphological changes in highly urbanized Shenzhen River estuary, China: A combined field experimental and modeling approach

    NASA Astrophysics Data System (ADS)

    Zhang, Shiyan; Mao, Xian-zhong

    2015-10-01

    The Shenzhen River estuary is a small estuary in highly urbanized regions between Shenzhen and Hong Kong, China. An increasing amount of sediment has been observed to accumulate in the estuary, imposing a severe impact on the ecological environment. In this study we utilized a series of hydrographic and bathymetry surveys to study the hydrology, sediment transport and morphological processes in the estuary. Flow and sediment circulation patterns in different seasons were inferred using current velocity, salinity and suspended sediment concentration (SSC) time series collected in the hydrographic surveys in conjunction with fathometer profiles in bathymetry surveys. Historical time series at two stations were also analyzed by Mann-Kendall test for possible trends of the driving forces for estuarine morphological processes. The two-dimensional depth-averaged DELFT numerical model was employed to simulate the flow, salinity and SSC fields during the synchronous surveys and to predict the long-term morphological processes in the estuary. A bimodal SSC distribution was observed with two high-SSC zones separated by a low-SSC zone near the central bay, which cannot be explained by the conventional nongravitational transport theory of Postma (1967). It is hypothesized that sediment circulation in the estuary can be separated into two different systems: the "tidal zone" is under the influence of marine sediment from the Pearl River estuary, whereas the "fluvial zone" is mainly affected by terrestrial sediment from the river. Sediment mass exchange between the two systems is limited due to the presence of the low-SSC zone, the location of which could vary with the relative strengths of river flow and tides. The trend analysis of historical time series shows that the river discharge and the mean sea level are increasing and the flood tide range and the ebb tide range are decreasing. These trends are closely related to the intense human activities in the urbanization of

  2. Modeling Shallow Groundwater Geochemistry and Carbon Isotopes: Test of Methodology for CO2 Storage Evaluation at an EOR Site, West Texas, USA

    NASA Astrophysics Data System (ADS)

    Romanak, K. D.; Smyth, R. C.; Yang, C.; Hovorka, S. D.

    2009-05-01

    Geochemical mixing, reaction, and isotopic models are being used to study the Dockum aquifer above the SACROC oilfield in Scurry County, Texas, the longest running (>35 years) engineered CO2 injection on record. Geochemical data used in the modeling are from fresh to slightly saline groundwater (200 to 500 ft depth Triassic-age Dockum Fm. and Permian-age evaporite horizons), and brine from the deeper (6,000 to 7,000 ft) injection/production zone. The goals of this study are to: 1) assess the degree of interaction between shallow groundwater and CO2 injectate, and 2) develop low-cost methods for monitoring shallow groundwater at CO2 sequestration sites. Injectate CO2 is not evident in freshwater above SACROC. Geochemical parameters in groundwater samples do not differ significantly from regional trends and partial pressures (PCO2) of dissolved CO2 are within normal ranges (10-1.6 to 10-3.0). PHREEQC model results show that cation exchange and mixing of Dockum groundwater with Ca-SO4 water from underlying Permian evaporite deposits (< 22%) and Na-Cl produced brines (< 0.8%) drives dedolomitization [Ca2+ + CaMg(CO3)2 = Mg2+ + 2CaCO2] of aquifer carbonate. This is in contrast to calcite dissolution [CO2 + H2O + CaCO2 = Ca2+ + 2HCO3-], which is a common effect of CO2 gas in freshwater aquifers. Modeling of carbon isotopes (after Appelo and Postma, 2005) indicates the d13C of dissolved inorganic carbon (DIC) in the Dockum (-3.6 to -13.2 per mil) is dominated by dissolution of dolomite (-2.5 to -7.7 per mil) with initial DIC conditions (-15 to -20 per mil) in equilibrium with a microbial CO2 source (-23 to -28 per mil). Because CO2 gas is not a reactant (carbonate for calcite precipitation originates from dolomite dissolution), input of injectate CO2 has little or no impact on isotopes for normal ranges of PCO2. Therefore carbon isotope ratios may not be useful parameters for monitoring groundwater impacts from CO2 injection in areas where mixing and dedolomitization

  3. "Assessment of identity during adolescence using daily diary methods: Measurement invariance across time and sex": Correction to Becht et al. (2015).

    PubMed

    2016-06-01

    Reports an error in "Assessment of Identity During Adolescence Using Daily Diary Methods: Measurement Invariance Across Time and Sex" by Andrik I. Becht, Susan J. T. Branje, Wilma A. M. Vollebergh, Dominique F. Maciejewski, Pol A. C. van Lier, Hans M. Koot, Jaap J. A. Denissen and Wim H. J. Meeus (Psychological Assessment, Advanced Online Publication, Aug 10, 2015, np). In the article the participants should have been reported as N = 494. No differences were found in the results upon reanalyzing the data with the correct number of participants. Additionally, the last sentence of the first full paragraph in the Invariance Across Boys and Girls subsection of the Method section should read "In the fourth model, strict invariance was examined, in which the residual variances were constrained to be equal for boys and girls." (The following abstract of the original article appeared in record 2015-36246-001.) The aim of this study was to assess measurement invariance of adolescents' daily reports on identity across time and sex. Adolescents (N = 497; mean age = 13.32 years at Time 1, 56.7% boys) from the general population reported on their identity commitments, exploration in depth and reconsideration on a daily basis for 3 weeks within 1 year across 5 years. We used the single-item version of the Utrecht Management of Identity Commitments Scale (UMICS; Klimstra et al., 2010), a broad measure of identity-formation processes covering both interpersonal and educational identity domains. This study tested configural, metric, scalar, and strict measurement invariance across days within weeks, across sex, across weeks within years, and across years. Results indicated that daily diary reports show strict measurement invariance across days, across weeks within years, across years, and across boys and girls. These results support the use of daily diary methods to assess identity at various time intervals ranging from days to years and across sex. Results are discussed with

  4. Redox Processes and Arsenic Release in the Streambed of a Semi-arid Losing Stream

    NASA Astrophysics Data System (ADS)

    Andersen, M. S.; Rau, G. C.; McCallum, A. M.; Acworth, I.

    2011-12-01

    The water quality of groundwater recharge is a function of rainfall chemistry, soil processes and land use. It is less obvious that the mechanism of groundwater recharge itself can influence the resulting groundwater quality, but it has been shown that slow infiltration into thick unsaturated zones generally lead to oxic groundwater (Appelo and Postma, 2005). This is due to the relatively long residence time in the unsaturated zone where reactive organic matter from the soil can be exhausted in the presence of excess atmospheric oxygen. On the other hand, in shallow unsaturated zones some of the reactive organic matter tends to survive the short residence time in the unsaturated zone. Upon reaching the saturated zone this organic matter will reduce the limited amount of dissolved oxygen and start reducing other dissolved or solid electron acceptors (e.g. NO3-, SO42-, Fe(OH)3(s)). Consequently, it is to be expected that recharge from streams, where no unsaturated zone is present, in general should lead to anoxic groundwater. This could be beneficial for attenuating nitrate, but could lead to problems with high levels of dissolved iron or mobility of problematic trace elements such as arsenic. To explore these processes a field investigation was done in the ephemeral Maules Creek in NSW, Australia. A transect of groundwater and streambed piezometers were installed adjacent to a losing section of the creek. Water samples were collected from surface water, streambed pore waters and groundwater piezometers and analysed for water quality parameters (DO, pH, EC), major ions, trace elements, redox sensitive species (NO3-, Fe2+, Mn2+ and H2S) and dissolved organic carbon (DOC). The distribution of radioisotopes and dissolved species below the stream channel delineates a zone of the streambed-aquifer continuum containing water of a recent surface water origin. Measurable concentrations of reduced species (Fe2+, Mn2+ and NH4+), elevated levels of DOC and the lack of oxygen

  5. Using Biochar composts for improving sandy vineyard soils while reducing the risk of

    NASA Astrophysics Data System (ADS)

    Kammann, Claudia; Mengel, Jonathan; Mohr, Julia; Muskat, Stefan; Schmidt, Hans-Peter; Löhnertz, Otmar

    2016-04-01

    leaching compared to the control (where nearly all mineral N was lost), the larger application amount in pure compost caused rising nitrate loss rates, likely due to compost mineralization. Interestingly, this was not the case when biochar was included, either co-composted or mixed into the substrates afterwards. However, after three years, the biochar-compost treatment still showed the highest grape yield of all treatments, while the treatment with biochar mixed in after compost production did not have the same effect. The results suggest that biochar-composts, for example produced from vine making residue and greenwaste, may reduce the risk of nitrate leaching while increasing the soil organic content more permanently than other amendments. Genesio, L., Miglietta, F., Baronti, S., Vaccari, F.P., 2015. Biochar increases vineyard Productivity without affecting grape quality: Results from a four years field experiment in Tuscany. Agriculture, Ecosystems & Environment 201, 20-25. Kammann, C.I., Schmidt, H.-P., Messerschmidt, N., Linsel, S., Steffens, D., Müller, C., Koyro, H.-W., Conte, P., Joseph, S., 2015. Plant growth improvement mediated by nitrate capture in cocomposted biochar. Scientific Reports 5, doi: 10.1038/srep11080. Ruysschaert, G., Nelissen, V., Postma, R., Bruun, E., O'Toole, A., Hammond, J., Rödger, J.-M.,Hylander, L., Kihlberg, T., Zwart, K., Hauggaard-Nielsen, H., Shackley, S., 2016. Field applications of pure biochar in the North Sea region and across Europe, in: Shackley, S.,Ruysschaert, G., Zwart, K., Glaser, B. (Eds.), Biochar in European Soils and Agriculture - Science and Practice. Routhledge, Oxon, UK and New York, USA.

  6. Wet Chemistry on SAM: How it Helps to Detect Organics on Mars

    NASA Astrophysics Data System (ADS)

    Buch, Arnaud; Freissinet, Caroline; Szopa, Cyril; Glavin, Danny; Coll, Patrice; Cabane, Michel; Eigenbrode, Jen; Navarro-Gonzalez, Rafael; Stern, Jen; Coscia, David; Teinturier, Samuel; Dworkin, Jason; Mahaffy, Paul; MSL Science Team

    2013-04-01

    of the background signal under its gaseous phase and is derived from at least one of the seven MTBSTFA/DMF derivatization cups in SAM. Since MTBSTFA is able to react in the gaseous phase, its detection implies the possibility to have some MTBSTFA reactions with all the labile compounds possibly present in the Martian soil, in the sampling system and/or inside the SAM instrument. In addition, we also have observed the presence of compounds resulting from the derivatization reaction between MTBSTFA and water. Indeed, water has been detected by two ways: the EGA experiment and the GC-TCD-MS run. Due to the presence of mono- and bi-silylated water derivatives, several characteristic ions can be detected in the EGA mode (e.g. m/z = 147, 73), and two characteristic peaks in the GC-TCD-MS analysis are also observed. In addition to water, a sylilated chloride compound has been detected after pyrolysis of the Rocknest soil. This compound is the simplest chloride derivative compound: chloro(1,1-dimethylethyl)dimethyl-silane, and it co-elutes with the mono-sylilated water derivative. [1] Buch, A. et al. (2009) J chrom. A, 43, 143-151. [2] Stalport, F. et al. (2012) Planet. Space Sci. 67: 1-13. [3] Geffroy-Rodier, C. et al. (2009) JAAP, 85, 454-459.

  7. Improving Short Wave Breaking Behavior In Surfbeat Models

    NASA Astrophysics Data System (ADS)

    Roelvink, J.; Daly, C.; Vandongeren, A. R.; van Thiel de Vries, J.; McCall, R.

    2009-12-01

    C. Obviously this has important consequences for the forcing of both long waves and mean currents. In our presentation we will show results of comparisons of both formulations. References. Arcilla, A.S., Roelvink, J.A., O'Connor, B.A. Reniers, A., and Jimenez. J.A. The Delta Flume '93 Experiment. Coastal Dynamics '94. Arcilla, Stive and Kraus (eds), ASCE, New York, pp. 488-502. Battjes, J.A. and J.P.F.M. Janssen, (1978), Energy loss and set-up due to breaking in random waves, Proc. 16th Int. Coastal Eng. Conf., Hamburg, vol. 1: 569-587. Dally, W.R. (1992) Random breaking waves: Field verification of a wave-by-wave algorithm for engineering application. Coastal Engineering, Volume 16, Issue 4, March 1992, Pages 369-397. Roelvink, Dano, Ad Reniers, Ap van Dongeren, Jaap van Thiel de Vries, Robert McCall, Jamie Lescinski. Modelling storm impacts on beaches, dunes and barrier islands, Coast. Eng. (2009), doi:10.1016/j.coastaleng.2009.08.006 Roelvink, J.A. Dissipation in random wave groups incident on a beach. Coastal Eng., 19 (1993) pp. 127-150.

  8. Making and breaking the sediment record - characterising effects of tsunamis, storms and average conditions on dune erosion and recovery: a forward modelling exploration.

    NASA Astrophysics Data System (ADS)

    Roelvink, Dano; Costas, Susana

    2015-04-01

    cases we resolve wave-averaged flows, bed load and suspended load transport and morphology change including avalanching. Results will be presented in terms of both profile change and resulting contribution to stratigraphy, allowing to evaluate the effects of these different building blocks on the stratigraphic record. References: Apotsos, A., G. Gelfenbaum, and B. Jaffe, 2011. Process-based modeling of tsunami inundation and sediment transport, J. Geophys. Res., 116, F01006, doi:10.1029/2010JF001797. Rebêlo, L., Costas, S., Brito, P., Ferraz, M., Prudêncio, M. I. and Burbidge, C., 2013. Imprints of the 1755 tsunami in the Tróia Peninsula shoreline, Portugal In: Conley, D.C., Masselink, G., Russell, P.E. and O'Hare, T.J. (eds.), Proceedings 12th International Coastal Symposium (Plymouth, England), Journal of Coastal Research, Special Issue No. 65, pp. 814-819, ISSN 0749-0208. Dano Roelvink, Ad Reniers, Ap van Dongeren, Jaap van Thiel de Vries, Robert McCall, Jamie Lescinski. Modelling storm impacts on beaches, dunes and barrier islands. Coastal Engineering, Volume 56, Issues 11-12, November-December 2009, Pages 1133-1152

  9. Medicine and medical sciences in Africa.

    PubMed

    Gathiram, Prem; Hänninen, Osmo

    2014-06-01

    The year 2014 is an important year because it will mark the 25th Anniversary of the founding of the African Association of Physiological Sciences (AAPS) and initial talks to launch the International Society for Pathophysiology (ISP). Both these organizations had a foothold in Finland and both occurred during the IUPS Centennial Celebration Congress in 1989. The congress was hosted by the Finnish Physiological Society in Helsinki, Finland in July 1989. For both organizations, Prof OsmoHänninen was instrumental in the launching and inauguration of AAPS and also to initiate the creation of ISP. In order to celebrate the 25th Anniversaries of both organizations it was decided to hold the ISP2014 congress on the African soil. Hence in 2004, at the 4th international congress of AAPS held in Morocco, Wail Benjeloun.the then secretary general of AAPS, submitted successfully a bid to host ISP2014 in Morocco. Following the inauguration of AAPS in Helsinki, the 1st Congress of AAPS was held in Nairobi, Kenya in 1992 where the Constitution of AAPS was drawn up. The Constitution was adopted at the 2nd congress of AAPS in Durban, South Africa in 1997. Following this congress, the next congress, as scheduled, was held in Pretoria, South Africa in 2000. The last congress (6th) of AAPS was held on 1-5 September 2012 in Ismailia, Egypt. This was an historical congress because of many reasons and amongst these was the appointment of Anthony B. Ebeigbe, Department of Physiology, University of Benin, Nigeria as its first Editor-in-Chief of its official journal, the Journal of the African association of Physiological Sciences (JAAPS). He successfully published the first issue in June 2013, as mandated in Ismailia. The World's medicine has its initial root in Africa and in fact it was in Memphis, Egypt as early as 2700 BC. During the Ptulomaic period the seat of medicine was in Alexandria, Egypt and Medical knowledge then spread to the Greeks 330 BC. Many western medical scientists

  10. Downwind changes in grain size of aeolian dust; examples from marine and terrestrial archives

    NASA Astrophysics Data System (ADS)

    Stuut, Jan-Berend; Prins, Maarten

    2013-04-01

    ., Troelstra, S., Bacon, P., Kamerling, I., Wester, W., Konert, M., Huang, X., Ke, W., Vandenberghe, J., 2009. Dust supply from river floodplains: The case of the lower Huang He (Yellow River) recorded in a loess-palaeosol sequence from the Mangshan Plateau. Journal of Quaternary Science 24, 75-84. Stuut, J.-B.W., Prins, M.A., Schneider, R.R., Weltje, G.J., Jansen, J.H.F., Postma, G., 2002. A 300-kyr record of aridity and wind strength in southwestern Africa: inferences from grain-size distributions of sediments on Walvis Ridge, SE Atlantic. Marine Geology 180, 221-233. Stuut, J.-B.W., Zabel, M., Ratmeyer, V., Helmke, P., Schefuß, E., Lavik, G., Schneider, R.R., 2005. Provenance of present-day eolian dust collected off NW Africa. Journal of Geophysical Research 110. Stuut, J.-B.W., Kasten, S., Lamy, F., Hebbeln, D., 2007. Sources and modes of terrigenous sediment input to the Chilean continental slope. Quaternary International 161, 67-76. Tjallingii, R., Claussen, M., Stuut, J.-B.W., Fohlmeister, J., Jahn, A., Bickert, T., Lamy, F., Rohl, U., 2008. Coherent high- and low-latitude control of the northwest African hydrological balance. Nature Geoscience 1, 670-675. Torres-Padrón, M.E., Gelado-Caballero, M.D., Collado-Sánchez, C., Siruela-Matos, V.F., Cardona-Castellano, P.J., Hernández-Brito, J.J., 2002. Variability of dust inputs to the CANIGO zone. Deep Sea Research Part II: Topical Studies in Oceanography 49, 3455-3464. Weltje, G.J., Prins, M.A., 2003. Muddled or mixed? Inferring palaeoclimate from size distributions of deep-sea clastics. Sedimentary Geology 162, 39-62.

  11. New Book Recounts Exciting, Colorful History Of Radio Astronomy in Green Bank, West Virginia

    NASA Astrophysics Data System (ADS)

    2007-07-01

    interested in astronomical discovery will find fascinating and highly personal accounts by Peter Mezger on observations of radio recombination lines, by Lewis Snyder and Barry Turner on the early days of astrochemistry, by Don Backer and David Nice on observations of pulsars, and by David Shaffer, James Moran, Ken Kellermann and Barry Clark on aspects of the development of long baseline interferometric techniques. Today's generation of scientists will find interesting reminiscences by Patrick Palmer, Thomas Wilson, and Nobel Laureate Joseph Taylor on their experiences as graduate students doing thesis research at Green Bank, and from Sebastian von Hoerner and Jaap Baars on their work in telescope development. The volume also relates the entry of computers into radio astronomy, and reprints the one-page memo from 1960 which laid out the protocol for use of the new "single roll of magnetic tape" just acquired by the Observatory. A major portion of the book describes some singular events associated with this singular place: the first search for radio signals from extraterrestrial civilizations -- Project Ozma -- conducted by Dr. Frank Drake in 1960. But it was Fun... documents how this routine project thrust the NRAO into the national spotlight to the discomfort of its director, a distinguished astronomer of the old school. The book also recounts a few episodes in the amazing life of Grote Reber, the engineer who built the first-ever radio dish in his backyard and was a regular visitor to Green Bank. The NRAO Green Bank Observatory is an international center for research, and in two unique and frequently hilarious articles, Ken Kellermann and Barry Clark tell their stories of the first cooperative radio astronomical projects between the Soviet Union and the U.S., which involved transporting an atomic clock from Green Bank to a Soviet Observatory on the Black Sea at a time when international tensions were high, and it was impossible to make a phone call from the USSR to Green