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Sample records for 241-sy-102 supernate grab

  1. Waste compatibility safety issues and final results for tank 241-SY-102 grab samples

    SciTech Connect

    Nuzum, J.L.

    1997-08-14

    Three grab samples (2SY-96-1, 2SY-96-2, and 2SY-96-3) were taken from Riser 1A of Tank 241-SY 102 on January 14, 1997, and received by 222-S Laboratory on January 14, 1997. These samples were analyzed in accordance with Compatibility Grab Sampling and Analysis Plan (TSAP) and Data Quality Objectives for Tank Farm Waste Compatibility Program (DQO) in support of the Waste Compatibility Program. No notifications were required based on sample results. Acetone analysis was not performed in accordance with Cancellation of Acetone Analysis for Tank 241-SY-102 Grab Samples.

  2. Tank 241-SY-102 January 2000 Compatibility Grab Samples Analytical Results for the Final Report [SEC 1 and 2

    SciTech Connect

    BELL, K.E.

    2000-05-11

    This document is the format IV, final report for the tank 241-SY-102 (SY-102) grab samples taken in January 2000 to address waste compatibility concerns. Chemical, radiochemical, and physical analyses on the tank SY-102 samples were performed as directed in Comparability Grab Sampling and Analysis Plan for Fiscal Year 2000 (Sasaki 1999). No notification limits were exceeded. Preliminary data on samples 2SY-99-5, -6, and -7 were reported in ''Format II Report on Tank 241-SY-102 Waste Compatibility Grab Samples Taken in January 2000'' (Lockrem 2000). The data presented here represent the final results.

  3. Report on Electrochemcial Corrosion Testing of 241-SY-102 Grab Samples from the 2012 Grab Sampling Campaign

    SciTech Connect

    Wyrwas, Richard B.; Lamothe, Margaret E.

    2013-05-30

    This report describes the results of the electrochemical testing performed on tank 241-SY-102 (SY-102) grab samples that were collected in support of corrosion mitigation. The objective of the work presented here was to determine corrosion resistance of tank SY-102 to the grab samples collected using electrochemical methods up to 50°C as well as to satisfy data quality objectives. Grab samples were collected at multiple elevations from Riser 003. The electrochemical corrosion testing was planned to consist of linear polarization resistance testing (LPR) and cyclic potentiodynamic polarization (CPP) testing at 50°C. The temperature would be lowered to 40 °C and the test repeated if the CPP curve indicated pitting corrosion at 50°C. Ifno pitting was indicated by the CPP curve, then a duplicate scan would be repeated at 50°C to confirm the first result. The testing would be complete if the duplicate CPP scan was consistent with the first. This report contains the CPP results of the testing of grab sample 2SY-12-03 and 2SY-12-03DUP composite sample tested under these conditions. There was no indication of pitting at 50°C, and the duplicate scan was in agreement with the first scan. Since no further testing was required, a third scan with a shorter rest time was performed and is present in this report.

  4. ELECTROCHEMICAL CORROSION TEST RESULTS FOR TANK 241-SY-102 SUPERNATE GRAB SAMPLES

    SciTech Connect

    DUNCAN JB

    2007-04-09

    This report describes the electrochemical corrosion scans and conditions for testing of SY-102 supernatant samples taken December 2004. The testing was performed because the tank was under a Justification for Continued Operation allowing the supernatant composition to be outside the chemistry limits of Administrative Control 5.16, 'Corrosion Mitigation program'. A new electrochemical working electrode of A516 Grade 60 carbon steel was used for each scan; all scans were measured against a saturated calomel electrode, with carbon counter electrodes, and all scans were carried out at 50 C. The samples were scanned twice, once as received and once sparged with argon to deoxygenate the sample. For those scans conducted after argon purging, the corrosion rates ranged from 0.012 to 0.019 mpy. A test for stress corrosion cracking was carried out on one sample (2SY-04-07) with negative results.

  5. Tank characterization report for Double-Shell Tank 241-SY-102

    SciTech Connect

    DiCenso, A.T.; Amato, L.C.; Winters, W.I.

    1995-06-09

    This tank characterization report presents an overview of Double-Shell Tank 241-SY-102 (hereafter, Tank 241-SY-102) and its waste contents. It provides estimated concentrations and inventories for the waste components based on the latest sampling and analysis activities and background tank information. This report describes the results of three sampling events. The first core sample was taken in October 1988. The tank supernate and sludge were next core sampled in February and March of 1990 (Tingey and Sasaki 1995). A grab sample of the supernate was taken in March of 1994. Tank 241-SY-102 is in active service and can be expected to have additional transfers to and from the tank that will alter the composition of the waste. The concentration and inventory estimates reported in this document no longer reflect the exact composition of the waste but represent the best estimates based on the most recent and available data. This report supports the requirements of the Hanford Federal Facility Agreement and Consent Order Milestone M-44-08 (Ecology, EPA, DOE 1994).

  6. Engineer/constructor description of work for Tank 241-SY-102 retrieval system, project W-211, initial tank retrieval systems

    SciTech Connect

    Rieck, C.A.

    1996-02-01

    This document provides a description of work for the design and construction of a waste retrieval system for Tank 241-SY-102. The description of work includes a working estimate and schedule, as well as a narrative description and sketches of the waste retrieval system. The working estimate and schedule are within the established baselines for the Tank 241-SY-102 retrieval system. The technical baseline is provided in Functional Design Criteria, WHC-SD-W211-FDC-001, Revision 2.

  7. Waste mixing and diluent selection for the planned retrieval of Hanford Tank 241-SY-102: A preliminary assessment

    SciTech Connect

    Onishi, Y.; Hudson, J.D.

    1996-01-01

    This preliminary assessment documents a set of analyses that were performed to determine the potential for Hanford waste Tank 241-SY-102 waste properties to be adversely affected by mixing the current tank contents or by injecting additional diluent into the tank during sludge mobilization. As a part of this effort, the effects of waste heating that will occur as a result of mixer pump operations are also examined. Finally, the predicted transport behavior of the resulting slurries is compared with the waste acceptance criteria for the Cross-Site Transfer System (CSTS). This work is being performed by Pacific Northwest National Laboratory in support of Westinghouse Hanford Company`s W-211 Retrieval Project. We applied the equilibrium chemical code, GMIN, to predict potential chemical reactions. We examined the potential effects of mixing the current tank contents (sludge and supernatant liquid) at a range of temperatures and, separately, of adding pure water at a volume ratio of 1:2:2 (sludge:supernatant liquid:water) as an example of further diluting the current tank contents. The main conclusion of the chemical modeling is that mixing the sludge and the supernate (with or without additional water) in Tank 241-SY-102 dissolves all sodium-containing solids (i.e., NaNO{sub 3}(s), thenardite, NaF(s), and halite), but does not significantly affect the amorphous Cr(OH){sub 3} and calcite phase distribution. A very small amount of gibbsite [Al(OH){sub 3}(s)] might precipitate at 25{degrees}C, but a somewhat larger amount of gibbsite is predicted to dissolve at the higher temperatures. In concurrence with the reported tank data, the model affirmed that the interstitial solution within the sludge is saturated with respect to many of the solids species in the sludge, but that the supernatant liquid is not in saturation with many of major solids species in sludge. This indicates that a further evaluation of the sludge mixing could prove beneficial.

  8. Ultrasonic Examination of Double-Shell Tank 241-SY-102. Examination Completed June 2004

    SciTech Connect

    Pardini, Allan F.; Posakony, Gerald J.

    2004-07-20

    COGEMA Engineering Corporation (COGEMA), under a contract from CH2M Hill Hanford Group (CH2M Hill), has performed an ultrasonic nondestructive examination of selected portions of Double-Shell Tank 241-SY-102. The purpose of this examination was to provide information that could be used to evaluate the integrity of the wall of the primary tank. The requirements for the ultrasonic examination of Tank 241-SY-102 were to detect, characterize (identify, size, and locate), and record measurements made of any wall thinning, pitting, or cracks that might be present in the wall of the primary tank. Any measurements that exceed the requirements set forth in the Engineering Task Plan (ETP), RPP-17750 (Jensen 2003) and summarized on page 1 of this document, are reported to CH2M Hill and the Pacific Northwest National Laboratory (PNNL) for further evaluation. Under the contract with CH2M Hill, all data is to be recorded on disk and paper copies of all measurements are provided to PNNL for third-party evaluation. PNNL is responsible for preparing a report that describes the results of the COGEMA

  9. Hazard evaluation for transfer of waste from tank 241-SY-101 to tank 241-SY-102

    SciTech Connect

    SHULTZ, M.V.

    1999-02-12

    Tank 241-SY-101 (SY-101) waste level growth is an emergent, high priority issue. The purpose of this document is to record the hazards evaluation process and document potential hazardous conditions that could lead to the release of radiological and toxicological material from the proposed transfer of a limited quantity (approximately 100,000 gallons) of waste from SY-101 to 241-SY-102 (SY-102). The results of the hazards evaluation will be compared to the current Tank Waste Remediation System (TWRS) Basis for Interim Operation (HNF-SD-WM-BIO-001, 1998, Revision 1) to identify any hazardous conditions where Authorization Basis (AB) controls may not be sufficient or may not exist. Comparison to LA-UR-92-3196, A Safety Assessment for Proposed Pump Mixing Operations to Mitigate Episodic Gas Releases in Tank 241-SY-101, was also made in the case of transfer pump removal activities. This document is not intended to authorize the activity or determine the adequacy of controls; it is only intended to provide information about the hazardous conditions associated with this activity. The Unreviewed Safety Question (USQ) process will be used to determine the adequacy of controls and whether the proposed activity is within the AB. This hazard evaluation does not constitute an accident analysis.

  10. Hazard evaluation for transfer of waste from tank 241-SY-101 to tank 241-SY-102

    SciTech Connect

    SHULTZ, M.V.

    1999-04-05

    Tank 241-SY-101 waste level growth is an emergent, high priority issue. The purpose of this document is to record the hazards evaluation process and document potential hazardous conditions that could lead to the release of radiological and toxicological material from the proposed transfer of a limited quantity (approximately 100,000 gallons) of waste from Tank 241-SY-101 to Tank 241-SY-102. The results of the hazards evaluation were compared to the current Tank Waste Remediation System (TWRS) Basis for Interim Operation (HNF-SD-WM-BIO-001, 1998, Revision 1) to identify any hazardous conditions where Authorization Basis (AB) controls may not be sufficient or may not exist. Comparison to LA-UR-92-3196, A Safety Assessment for Proposed Pump Mixing Operations to Mitigate Episodic Gas Releases in Tank 241-SY-101, was also made in the case of transfer pump removal activities. Revision 1 of this document deletes hazardous conditions no longer applicable to the current waste transfer design and incorporates hazardous conditions related to the use of an above ground pump pit and overground transfer line. This document is not part of the AB and is not a vehicle for requesting authorization of the activity; it is only intended to provide information about the hazardous conditions associated with this activity. The AB Control Decision process will be used to determine the adequacy of controls and whether the proposed activity is within the AB. This hazard evaluation does not constitute an accident analysis.

  11. Baseline Design Compliance Matrix for the Type 4 In Situ Vapor Samplers and Supernate and Sludge and Soft Saltcake Grab Sampling

    SciTech Connect

    BOGER, R.M.

    2000-09-28

    The DOE has identified a need to sample vapor space, exhaust ducts, supernate, sludge, and soft saltcake in waste tanks that store radioactive waste. This document provides the Design Compliance Matrix (DCM) for the Type 4 In-Situ Vapor Sampling (ISVS) system and the Grab Sampling System that are used for completing this type of sampling function. The DCM identifies the design requirements and the source of the requirements for the Type 4 ISVS system and the Grab Sampling system. The DCM is a single-source compilation design requirements for sampling and sampling support equipment and supports the configuration management of these systems.

  12. GRAB MECHANISMS

    DOEpatents

    Dent, K.H.

    1948-03-01

    This patent relates to a device for ltfting objects having specially designed arms that fit into aligned slots within concentric sleeves of the grab mechanism. Upon the application of an electric current the sleeves are rotated relative to one another to the aforesaid aligned position, aliowing the entry or removal of the arms of the lifted object. The sleeves are spring biased to an unailgned positione thus locking the arms within the grab mechanism when the current is off. This arrangement provides a device that will remotely secure, life, and release an object, wtth the assurance that the object wiil remain securely locked during the lifting operation.

  13. DWPF DECON FRIT SUPERNATE ANALYSIS

    SciTech Connect

    Peeler, D.; Crawford, C.

    2010-09-22

    The Savannah River National Laboratory (SRNL) has been requested to perform analyses on samples of the Defense Waste Processing Facility (DWPF) decon frit slurry (i.e., supernate samples and sump solid samples). Four 1-L liquid slurry samples were provided to SRNL by Savannah River Remediation (SRR) from the 'front-end' decon activities. Additionally, two 1-L sump solids samples were provided to SRNL for compositional and physical analysis. This report contains the results of the supernate analyses, while the solids (sump and slurry) results will be reported in a supplemental report. The analytical data from the decon frit supernate indicate that all of the radionuclide, organic, and inorganic concentrations met the limits in Revision 4 of the Effluent Treatment Plant (ETP) Waste Acceptance Criteria (WAC) with the exception of boron. The ETP WAC limit for boron is 15.0 mg/L while the average measured concentration (based on quadruplicate analysis) was 15.5 mg/L. The measured concentrations of Li, Na, and Si were also relatively high in the supernate analysis. These results are consistent with the relatively high measured value of B given the compositional make-up of Frit 418. Given these results, it was speculated that either (a) Frit 418 was dissolving into the supernate or aqueous fraction and/or (b) fine frit particulates were carried forward to the analytical instrument based on the sampling procedure used (i.e., the supernate samples were not filtered - only settled with the liquid fraction being transferred with a pipette). To address this issue, a filtered supernate sample (using a 0.45 um filter) was prepared and submitted for analysis. The results of the filtered sample were consistent with 'unfiltered or settled' sample - relatively high values of B, Li, Na, and Si were found. This suggests that Frit 418 is dissolving in the liquid phase which could be enhanced by the high surface area of the frit fines or particulates in suspension. Based on the results

  14. Results of Waste Transfer and Back-Dilution in Tanks 241-SY-101 and 241-SY-102

    SciTech Connect

    LA Mahoney; ZI Antoniak; WB Barton; JM Conner; NW Kirch; CW Stewart; BE Wells

    2000-07-26

    This report chronicles the process of remediation of the flammable gas hazard in Tank 241-SY-101 (SY-101) by waste transfer and back-dilution from December 18, 1999 through April 2, 2000. A brief history is given of the development of the flammable gas retention and release hazard in this tank, and the transfer and dilution systems are outlined. A detailed narrative of each of the three transfer and dilution campaigns is given to provide structure for the balance of the report. Details of the behavior of specific data are then described, including the effect of transfer and dilution on the waste levels in Tanks SY-101 and SY-102, data from strain gauges on equipment suspended from the tank dome, changes in waste configuration as inferred from neutron and gamma logs, headspace gas concentrations, waste temperatures, and the mixerpump operating performance. Operating data and performance of the transfer pump in SY-101 are also discussed.

  15. Supernate source term analysis: Revision 1

    SciTech Connect

    Aponte, C.I.

    1994-10-13

    The HM Process (modified PUREX) has been used in the H-Canyon since 1959 to recover uranium and byproduct neptunium. The PUREX process has been used in the Separation facilities in F and H-Area. This report analyzes both the inhalation and ingestion radionuclide dose impact of the HM and PUREX process soluble portion of their waste streams. The spent fuel assemblies analyzed are the Mark 16B, Mar 22 for the HM process, and the Mark 31A, Mark 31B for the PUREX process. The results from this analysis are combined with an analysis of the current Safety Analysis Report SAR source term to evaluate source terms for HLW supernate. Analysis of fission yield data and SAR source term values demonstrates that a limited number of radionuclides contribute 1% or more to the total dose and that cesium and plutonium isotopes are the radionuclides with major impact in the supernate source term. This report analyses both volatile and evaporative impact as recommended by DOE guidance. In reality, the only radionuclide volatilized during evaporative conditions is tritium. No evidence of selective volatility occurs during forced evaporation in HLW. The results obtained permit reducing the list of radionuclides to be considered in the development of source terms to support the High Level Waste Safety Analysis Report.

  16. Revised final report for tank 241-AN-101, grab samples 1AN-95-1 through 1AN-95-7. Revision 1

    SciTech Connect

    Esch, R.A.

    1996-01-17

    Six supernate grab samples and one field blank were taken from tank 241-AN-101. This report documents analyses performed in support of the Safety Screening program: differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), density by specific gravity (Sp.G.), and total alpha activity (AT).

  17. The flash grab effect.

    PubMed

    Cavanagh, Patrick; Anstis, Stuart

    2013-10-18

    When an object moves back and forth, its trajectory appears significantly shorter than it actually is. The object appears to stop and reverse well before its actual reversal point, as if there is some averaging of location within a window of about 100 ms (Sinico et al., 2009). Surprisingly, if a bar is flashed at the physical end point of the trajectory, right on top of the object, just as it reverses direction, the flash is also shifted - grabbed by the object - and is seen at the perceived endpoint of the trajectory rather than the physical endpoint. This can shift the perceived location of the flash by as much as 2 or 3 times its physical size and by up to several degrees of visual angle. We first show that the position shift of the flash is generated by the trajectory shortening, as the same shift is seen with or without the flash. The flash itself is only grabbed if it is presented within a small spatiotemporal attraction zone around the physical end point of the trajectory. Any flash falling in that zone is pulled toward the perceived endpoint. The effect scales linearly with speed, up to a maximum, and is independent of the contrast of the moving stimulus once it is above 5%. Finally, we demonstrate that this position shift requires attention. These results reveal a new "flash grab" effect in the family of motion-induced position shifts. Although it most resembles the flash drag effect, it differs from this in the following ways: (1) it has a different temporal profile, (2) it requires attention, (3) it is about 10 times larger. Copyright © 2013 Elsevier Ltd. All rights reserved.

  18. Global land and water grabbing.

    PubMed

    Rulli, Maria Cristina; Saviori, Antonio; D'Odorico, Paolo

    2013-01-15

    Societal pressure on the global land and freshwater resources is increasing as a result of the rising food demand by the growing human population, dietary changes, and the enhancement of biofuel production induced by the rising oil prices and recent changes in United States and European Union bioethanol policies. Many countries and corporations have started to acquire relatively inexpensive and productive agricultural land located in foreign countries, as evidenced by the dramatic increase in the number of transnational land deals between 2005 and 2009. Often known as "land grabbing," this phenomenon is associated with an appropriation of freshwater resources that has never been assessed before. Here we gather land-grabbing data from multiple sources and use a hydrological model to determine the associated rates of freshwater grabbing. We find that land and water grabbing are occurring at alarming rates in all continents except Antarctica. The per capita volume of grabbed water often exceeds the water requirements for a balanced diet and would be sufficient to improve food security and abate malnourishment in the grabbed countries. It is found that about 0.31 × 10(12) m(3) · y(-1) of green water (i.e., rainwater) and up to 0.14 × 10(12) m(3) · y(-1) of blue water (i.e., irrigation water) are appropriated globally for crop and livestock production in 47 × 10(6) ha of grabbed land worldwide (i.e., in 90% of the reported global grabbed land).

  19. Global land and water grabbing

    PubMed Central

    Rulli, Maria Cristina; Saviori, Antonio; D’Odorico, Paolo

    2013-01-01

    Societal pressure on the global land and freshwater resources is increasing as a result of the rising food demand by the growing human population, dietary changes, and the enhancement of biofuel production induced by the rising oil prices and recent changes in United States and European Union bioethanol policies. Many countries and corporations have started to acquire relatively inexpensive and productive agricultural land located in foreign countries, as evidenced by the dramatic increase in the number of transnational land deals between 2005 and 2009. Often known as “land grabbing,” this phenomenon is associated with an appropriation of freshwater resources that has never been assessed before. Here we gather land-grabbing data from multiple sources and use a hydrological model to determine the associated rates of freshwater grabbing. We find that land and water grabbing are occurring at alarming rates in all continents except Antarctica. The per capita volume of grabbed water often exceeds the water requirements for a balanced diet and would be sufficient to improve food security and abate malnourishment in the grabbed countries. It is found that about 0.31 × 1012 m3⋅y−1 of green water (i.e., rainwater) and up to 0.14 × 1012 m3⋅y−1 of blue water (i.e., irrigation water) are appropriated globally for crop and livestock production in 47 × 106 ha of grabbed land worldwide (i.e., in 90% of the reported global grabbed land). PMID:23284174

  20. Final report for tank 241-AP-101, grab samples 1AP-95-1, 1AP-95-2, 1AP-95-3, 1AP-95-4, 1AP-95-5, and 1AP-95-6

    SciTech Connect

    Esch, R.A.

    1996-03-04

    Six supernate grab samples (1AP-95-1 through 6) and one field blank (1AP-95-7) were taken from tank 241-AP-101, on Nov. 10 and 13, 1995. Analyses were performed in support of the Safety Screening and the Waste Compatibility Safety programs. All analytical results were within the action limits stated in the TSAP.

  1. The Flash Grab Effect

    PubMed Central

    Cavanagh, Patrick; Anstis, Stuart

    2013-01-01

    When an object moves back and forth, its trajectory appears significantly shorter than it actually is. The object appears to stop and reverse well before its actual reversal point, as if there is some averaging of location within a window of about 100 ms (Sinico et al, 2009). Surprisingly, if a bar is flashed at the physical end point of the trajectory, right on top of the object, just as it reverses direction, the flash is also shifted – grabbed by the object – and is seen at the perceived endpoint of the trajectory rather than the physical endpoint. This can shift the perceived location of the flash by as much as 2 or 3 times its physical size and by up to several degrees of visual angle. We first show that the position shift of the flash is generated by the trajectory shortening, as the same shift is seen with or without the flash. The flash itself is only grabbed if it is presented within a small spatiotemporal attraction zone around the physical end point of the trajectory. Any flash falling in that zone is pulled toward the perceived endpoint. The effect scales linearly with speed, up to a maximum, and is independent of the contrast of the moving stimulus once it is above 5%. Finally, we demonstrate that this position shift requires attention. These results reveal a new “flash grab” effect in the family of motion-induced position shifts. Although it most resembles the flash drag effect, it differs from this in the following ways: 1) it has a different temporal profile, 2) it requires attention, 3) it is about 10 times larger. PMID:23872166

  2. Tank 214-AW-105, grab samples, analytical results for the finalreport

    SciTech Connect

    Esch, R.A.

    1997-02-20

    This document is the final report for tank 241-AW-105 grab samples. Twenty grabs samples were collected from risers 10A and 15A on August 20 and 21, 1996, of which eight were designated for the K Basin sludge compatibility and mixing studies. This document presents the analytical results for the remaining twelve samples. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DO). The results for the previous sampling of this tank were reported in WHC-SD-WM-DP-149, Rev. 0, 60-Day Waste Compatibility Safety Issue and Final Results for Tank 241-A W-105, Grab Samples 5A W-95-1, 5A W-95-2 and 5A W-95-3. Three supernate samples exceeded the TOC notification limit (30,000 microg C/g dry weight). Appropriate notifications were made. No immediate notifications were required for any other analyte. The TSAP requested analyses for polychlorinated biphenyls (PCB) for all liquids and centrifuged solid subsamples. The PCB analysis of the liquid samples has been delayed and will be presented in a revision to this document.

  3. Bacterial detachment from salivary conditioning films by dentifrice supernates.

    PubMed

    van der Mei, Henny C; White, Donald J; Cox, Ed R; Geertsema-Doornbusch, Gesinda I; Busscher, Henk J

    2002-01-01

    This study compared the detachment by supernates of nine different dentifrices of four oral bacterial strains adhering to a salivary pellicle in a parallel plate flow chamber. Ultra-thin bovine enamel slabs were coated for 1.5 h with human whole saliva. Following buffer rinsing, a bacterial suspension of Streptococcus oralis, Streptococcus sanguis, Streptococcus mutans or Actinomyces naeslundii was perfused through the flow chamber at a shear rate of 30 s-1 for four hours, and the number of adhering bacteria n4h was enumerated by image analysis after buffer rinsing at the same shear rate. Then, a 25 wt%-dentifrice/water supernate was perfused through the flow chamber for four minutes, followed by eight minutes of buffer rinsing and another enumeration of the number of bacteria that had remained adhering nad. Finally, an air-bubble was passed through the flow chamber to mimic the occasionally high detachment forces occurring in the oral cavity, and the adhering bacteria nab were counted again. On average, S. sanguis was the easiest to detach (73% averaged over all dentifrice supernates), while A. naeslundii was the most difficult (22% on average). The combined detachment of bacteria by dentifrice supernates and air-bubble ranged from a low of 16% to a high of 80%. Dentifrices containing pyrophosphate and polymeric polyphosphate (hexametaphosphate) surface active ingredients appeared to produce the most consistent and strongest desorption effects on plaque bacteria. Factors apparently important to bacterial detachment from pellicle-covered tooth surfaces by dentifrice formulations include the nature of adhesion of bacterial strains and chemical composition of the dentifrice formulations, including pH, surfactant system and the effect of added ingredients (dispersants, metal ions, peroxides, baking soda).

  4. Characterization of Tank 40H Supernate and Hydroxide Washing of Sludge

    SciTech Connect

    Wilmarth, W.R.

    2001-01-15

    During June 2000, the 3H Evaporator system is scheduled to receive wash water from washing the sludge and supernate currently in Tank 40H. The supernate from Tank 40H contains concentrated supernate from Tank 38H, the 2H Evaporator drop tank. This material may contain soluble silicon from the DWPF recycle stream. Therefore, SRTC examined the contents of Tank 40H and simulated the hydroxide wash of the sludge. The results of these tests are discussed in this report.

  5. Tank 38H Saltcake Core and Supernate Sample Analysis

    SciTech Connect

    MARTINO, CHRISTOPHERJ

    2004-07-07

    This report provides details of the characterization of Tank 38H saltcake and supernate samples pulled in September 2003. The core sample HTF-E-03-114 contained approximately 4 inches of saltcake, which was soupy and brown with white chunks, and contained less than 15 mL of cloudy free liquid. The undrained bulk saltcake had a water content of 16.8 percentage weight and a bulk density that was approximately 1.94 g/cm3 at full saturation. The 137Cs activity of the bulk saltcake in sample HTF-E-03-114 was 3.72E+7 pCi/g, which corresponds to 0.3 Ci per gallon of saltcake. The 238Pu activity of the bulk saltcake was 3.62E+6 pCi/g. The filtered free liquid in sample HTF-E-03-114 had a density of 1.430 g/cm3, a 137Cs activity of 0.73 Ci/gal., and a 238Pu activity of 5.78E+3 pCi/mL. The solids filtered from the HTF-E-03-114 free liquid were primarily composed of salts (sodium nitrate and sodium carbonate monohydrate) and sodium aluminosilicates. The Tank 38H supernate samples (HTF-E-03-122 and 123) had a density of 1.45 g/cm3, a 137Cs activity of 0.65 Ci/gal, a 238Pu activity of 2.2E4 pCi/mL, and contained no visible insoluble solids. The viscosity of supernate samples HTF-E-03-122 and 123 was determined at 25 degrees Celsius, 35 degrees Celsius, and 50 degrees Celsius to be 12.1 cP, 8.1 cP, and 5.1 cP, respectively. An exponential correlation for the Tank 38H supernate viscosity was formulated for use over this temperature range. In the undrained saltcake sample, several components, including cesium, nitrite, hydroxide, phosphate, formate, and potassium, were partitioned predominantly into the interstitial liquid. Although the plutonium, uranium, neptunium, and strontium activities in the Tank 38H saltcake core sample are high compared with recent Tank 41H samples, they are low compared with previous saltcake samples from Tank 38H collected in July 2000 and July 2001. The 137Cs of the Tank 38H saltcake sample is comparable with the previous Tank 38H saltcake samples.

  6. Water Grabbing analysis at global scale

    NASA Astrophysics Data System (ADS)

    Rulli, M.; Saviori, A.; D'Odorico, P.

    2012-12-01

    "Land grabbing" is the acquisition of agricultural land by foreign governments and corporations, a phenomenon that has greatly intensified over the last few years as a result of the increase in food prices and biofuel demand. Land grabbing is inherently associated with an appropriation of freshwater resources that has never been investigated before. Here we provide a global assessment of the total grabbed land and water resources. Using process-based agro-hydrological models we estimate the rates of freshwater grabbing worldwide. We find that this phenomenon is occurring at alarming rates in all continents except Antarctica. The per capita volume of grabbed water often exceeds the water requirements for a balanced diet and would be sufficient to abate malnourishment in the grabbed countries. High rates of water grabbing are often associated with deforestation and the increase in water withdrawals for irrigation.

  7. Precipitation-adsorption process for the decontamination of nuclear waste supernates

    DOEpatents

    Lee, L.M.; Kilpatrick, L.L.

    1982-05-19

    High-level nuclear waste supernate is decontaminated of cesium by precipitation of the cesium and potassium with sodium tetraphenyl boron. Simultaneously, strontium-90 is removed from the waste supernate sorption of insoluble sodium titanate. The waste solution is then filtered to separate the solution decontaminated of cesium and strontium.

  8. Toxicity testing results on increased supernate treatment rate of 3700 gallons/batch

    SciTech Connect

    Pickett, J.B.; Martin, H.L.; Diener, G.A.

    1992-07-06

    In July, 1991, Reactor Materials increased the supernate treatment concentration in the M-Area Dilute Effluent Treatment Facility from 2700 gallons of supernate per 36000 gallon dilute wastewater batch to 3700 gallons/batch. This report summarizes the toxicity testing on the effluents of the increased treatment rate.(JL)

  9. Toxicity testing results on increased supernate treatment rate of 3700 gallons/batch. Revision 1

    SciTech Connect

    Pickett, J.B.; Martin, H.L.; Diener, G.A.

    1992-07-06

    In July, 1991, Reactor Materials increased the supernate treatment concentration in the M-Area Dilute Effluent Treatment Facility from 2700 gallons of supernate per 36000 gallon dilute wastewater batch to 3700 gallons/batch. This report summarizes the toxicity testing on the effluents of the increased treatment rate.(JL)

  10. Precipitation-adsorption process for the decontamination of nuclear waste supernates

    DOEpatents

    Lee, Lien-Mow; Kilpatrick, Lester L.

    1984-01-01

    High-level nuclear waste supernate is decontaminated of cesium by precipitation of the cesium and potassium with sodium tetraphenyl boron. Simultaneously, strontium-90 is removed from the waste supernate sorption of insoluble sodium titanate. The waste solution is then filtered to separate the solution decontaminated of cesium and strontium.

  11. Inhibition of Platelet Aggregation by Supernates from Stored Red Blood Cells

    DTIC Science & Technology

    2010-04-01

    platelet aggregates in fresh whole blood.[10] In those experiments , we observed that platelets in blood incubated with supernates from stored RBC...volumes in sterile cryovials, and the vials were stored at -80C. For each experiment , aliquots were thawed quickly in a 37°C water bath just before...The final ratio of whole blood to supernate was 2:1. For each experiment , blood was collected first into one red top Vacutainer tube (no anti

  12. Influence of rapamycin on rat macrophage viability and chemotaxis toward allogenic pancreatic islet supernates.

    PubMed

    Danner, S; Sigrist, S; Moreau, F; Mandes, K; Vodouhé, C; Langlois, A; Soskin, S; Fichbach, M; Pinget, M; Kessler, L

    2008-03-01

    The aim of this work was to evaluate the effects of rapamycin on rat macrophage viability and chemotaxis toward allogereic pancreatic islet supernates. Macrophages were isolated from rats by peritoneal lavage at 3 days after intraperitoneal injection of thioglycolate. Macrophage viability was studied after 7 days of culture by Cell Titer assays in the presence of rapamycin at 0.1, 1, and 10 ng/mL (n = 6). After 48 hours of culture, pancreatic rat islet supernates were studied for there chemotactic properties toward freshly isolated macrophages in the presence of rapamycin at 0.1, 1, and 10 ng/mL. Chemotaxis was expressed as a migration index defined as the number of macrophages attracted by the test solution (islet supernate +/- rapamycin)/number of macrophages attracted by the supernate (n = 6). After 3 days of culture, macrophage viability decreased significantly by 22%, 36%, and 32% in the presence of 0.1, 1, and 10 ng/mL rapamycin, respectively (P = .008). Macrophage viability remained stable at about 70% after 7 days of culture. In the presence of islet supernates, macrophage migration increased two-fold compared with those obtained by culture medium. Rapamycin did not influence macrophage migration toward culture medium. However, the drug significantly reduced the migration of macrophages toward islet supernates from 2 +/- 0.6 to 0.9 +/- 0.4, 0.7 +/- 0.3, or 0.8 +/- 0.4 in the presence of 0.1, 1, or 10 ng/mL rapamycin, respectively (P = .04). Rapamycin decreased the survival of cultured rat macrophages and their migration toward allogenic islet supernates. These results suggested that, besides its anti-proliferative effect on T cells, rapamycin reduced macrophage attraction to the graft site.

  13. Characterization of hazardous constituents in HLW supernate and implications for solid LLW generation

    SciTech Connect

    Georgeton, G.K.

    1994-10-10

    High Level Waste (HLW) generated during Separations processing in the F- and H-Canyons is transferred to the Tank Farms for stage in 51 underground, million gallon storage tanks. The waste is an aqueous solution containing dissolved sodium salts and insoluble metal oxides/hydroxides. The waste solution is evaporated to reduce the volume, and the resulting saltcake and residual supernate are stored. Over the 40 year history of the Tank Farm, routine supernate sampling has been conducted in support of the primary goal of safe storage of HLW. As a result of routine and non-routine activities that are part of managing these highly radioactive wastes, secondary solid waste is generated. Radioactive contamination of over 90% of the solid waste generated is due to contact with BLW supernate or saltcake. In order to comply with the Waste Acceptance Criteria (WAC) for of solid waste in the E-Area Vaults (EAV), the quantity of certain radioisotopes must be manifested for each waste container and a declaration made of whether or not the waste is hazardous. However, solid waste is not amenable to routine analysis, this forces a reliance on analytical data from supernate samples to characterize the contamination. To provide the manifest information, process knowledge in combination with the limited amount of analytical data will be used. This report documents the characterization of hazardous components in the HLW supernate associated with the waste storage, evaporation and sludge processing facilities. The hazardous constituents of HLW are identified and the fate of the constituents is tracked based on knowledge of each phase of the process. The limited amount of sample data that includes analyses for hazardous species is then used to establish average and maximum characterization values. Finally, a screening based on an average supernate is compared to the criteria for the individual streams to evaluate the amount of conservatism introduced for the individual streams.

  14. Technetium in alkaline, high-salt, radioactive tank waste supernate: Preliminary characterization and removal

    SciTech Connect

    Blanchard, D.L. Jr.; Brown, G.N.; Conradson, S.D.

    1997-01-01

    This report describes the initial work conducted at Pacific Northwest National Laboratory to study technetium (Tc) removal from Hanford tank waste supernates and Tc oxidation state in the supernates. Filtered supernate samples from four tanks were studied: a composite double shell slurry feed (DSSF) consisting of 70% from Tank AW-101, 20% from AP-106, and 10% from AP-102; and three complexant concentrate (CC) wastes (Tanks AN-107, SY-101, ANS SY-103) that are distinguished by having a high concentration of organic complexants. The work included batch contacts of these waste samples with Reillex{trademark}-HPQ (anion exchanger from Reilly Industries) and ABEC 5000 (a sorbent from Eichrom Industries), materials designed to effectively remove Tc as pertechnetate from tank wastes. A short study of Tc analysis methods was completed. A preliminary identification of the oxidation state of non-pertechnetate species in the supernates was made by analyzing the technetium x-ray absorption spectra of four CC waste samples. Molybdenum (Mo) and rhenium (Re) spiked test solutions and simulants were tested with electrospray ionization-mass spectrometry to evaluate the feasibility of the technique for identifying Tc species in waste samples.

  15. High level waste characterization in support of low level waste certification. I. HLW supernate radionuclide characterization

    SciTech Connect

    Jamison, M.E.; d`Entremont, P.D.; Clemmons, J.S.; Bess, C.E.; Brown, D.F.

    1994-07-08

    High Level Waste Programs has radioactive waste storage, treatment and processing facilities that are located in the F and H Areas at the Savannah River Site. These facilities include the Effluent Treatment Facility (ETF), F and H Area Tank Farms, Extended Sludge Processing (ESP), and In-Tank Precipitation (ITP). Job wastes are generated from operation, maintenance, and construction activities inside radiological areas. These items may have been contaminated with radioactive supernate, salt, and sludge material. Most of these wastes will be disposed of in the E-area Vaults. Therefore, an isotopic and hazardous characterization must be performed. The characterization of HLW supernate radionuclides is discussed in Chapter I. The characterization for salt and sludge phases, which can also contaminate LLW, will be included in other Chapters.

  16. Task Technical and Quality Assurance Plan for Determining Uranium and Plutonium Solubility in Actual Tank Waste Supernates

    SciTech Connect

    King, William D.

    2005-06-28

    Savannah River Site tank waste supernates contain small quantities of dissolved uranium and plutonium. Due to the large volume of supernates, significant quantities of dissolved uranium and plutonium are managed as part of waste transfers, evaporation and pretreatment at the Savannah River Site in tank farm operations, the Actinide Removal Project (ARP), and the Salt Waste Processing Facility (SWPF). Previous SRNL studies have investigated the effect of temperature and major supernate components on the solubility of uranium and plutonium. Based on these studies, equations were developed for the prediction of U and Pu solubility in tank waste supernates. The majority of the previous tests were conducted with simulated waste solutions. The current testing is intended to determine solubility in actual tank waste samples (as-received, diluted, and combinations of tank samples) as a function of composition and temperature. Results will be used to validate and build on the existing solubility equations.

  17. Compatibility Grab Sampling and Analysis Plan for FY 2001

    SciTech Connect

    LAURICELLA, T.L.

    2000-09-27

    This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for grab samples obtained to address waste compatibility.

  18. Grab a Byte. Courseware Evaluation for Vocational and Technical Education.

    ERIC Educational Resources Information Center

    Rosenfeld, Vila M.; And Others

    This courseware evaluation rates the "Grab a Byte" program developed by tne National Dairy Council. (The program--not included in this document--is divided into three sections: Grab-a-Grape uses a quiz-show format to examine students' knowledge of food groups; Nutrition Sleuth reinforces students' nutrient knowledge; and Have-a-Byte…

  19. FLUIDIZED BED STEAM REFORMING TECHNOLOGY FOR ORGANIC AND NITRATE SALT SUPERNATE

    SciTech Connect

    Jantzen, C; Michael02 Smith, M

    2007-03-30

    About two decades ago a process was developed at the Savannah River Site (SRS) to remove Cs137 from radioactive high level waste (HLW) supernates so the supernates could be land disposed as low activity waste (LAW). Sodium tetraphenylborate (NaTPB) was used to precipitate Cs{sup 137} as CsTPB. The flowsheet called for destruction of the organic TPB by acid hydrolysis so that the Cs{sup 137} enriched residue could be mixed with other HLW sludge, vitrified, and disposed of in a federal geologic repository. The precipitation process was demonstrated full scale with actual HLW waste and a 2.5 wt% Cs137 rich precipitate containing organic TPB was produced admixed with 240,000 gallons of salt supernate. Organic destruction by acid hydrolysis proved to be problematic and other disposal technologies were investigated. Fluidized Bed Steam Reforming (FBSR), which destroys organics by pyrolysis, is the current baseline technology for destroying the TPB and the waste nitrates prior to vitrification. Bench scale tests were designed and conducted at the Savannah River National Laboratory (SRNL) to reproduce the pyrolysis reactions. The formation of alkali carbonate phases that are compatible with DWPF waste pre-processing and vitrification were demonstrated in the bench scale tests. Test parameters were optimized for a pilot scale FBSR demonstration that was performed at the SAIC Science & Technology Application Research (STAR) Center in Idaho Falls, ID by Idaho National Laboratory (INL) and SRNL in 2003. An engineering scale demonstration was completed by THOR{reg_sign} Treatment Technologies (TTT) and SRNL in 2006 at the Hazen Research, Inc. test facility in Golden, CO. The same mineral carbonate phases, the same organic destruction (>99.99%) and the same nitrate/nitrite destruction (>99.99%) were produced at the bench scale, pilot scale, and engineering scale although different sources of carbon were used during testing.

  20. Intermediate-Scale Ion Exchange Removal of Technetium from Savannah River Site Tank 44 F Supernate Solution

    SciTech Connect

    King, W.D.

    2000-08-23

    As part of the Hanford River Protection Project waste Treatment facility design contracted to BNFL, Inc., a sample of Savannah River Site (SRS) Tank 4 F waste solution was treated for the removal of technetium (as pertechnetate ion). Interest in treating the SRS sample for Tc removal resulted from the similarity between the Tank 44 F supernate composition and Hanford Envelope A supernate solutions. The Tank 44 F sample was available as a by-product of tests already conducted at the Savannah River Technology Center (SRTC) as part of the Alternative Salt Disposition Program for treatment of SRS wastes. Testing of the SRS sample resulted in considerable cost-savings since it was not necessary to ship a sample of Hanford supernate to SRS.

  1. Evaluation of selected ion exchangers for the removal of cesium from MVST W-25 supernate

    SciTech Connect

    Collins, J.L.; Egan, B.Z.; Anderson, K.K.; Chase, C.W.; Mrochek, J.E.; Bell, J.T.; Jernigan, G.E.

    1995-04-01

    The goal of this batch-test equilibration study was to evaluate the effectiveness of certain ion exchangers for removing cesium from supernate taken from tank W-25 of the Melton Valley Storage Tank (MVST) Facility located at the Oak Ridge National Laboratory (ORNL). These exchangers were selective for removing cesium from alkaline supernatant solutions with high salt concentrations. Since the supernates of evaporator concentrates stored in tanks at the MVST facility have compositions similar to some of those stored in tanks at Hanford, the data generated in this study should prove useful in the overall evaluation of the ion exchangers for applications to Hanford and other US Department of Energy (USDOE) sites. A goal of the waste processing effort at Hanford is to remove enough cesium to ensure that the resulting LLW will meet the Nuclear Regulatory Commission (NRC) 10 CFR 61 class A limit for {sup 137}Cs (1 Ci/m{sup 3} or 1 {mu}Ci/mL). The separated cesium may be concentrated and vitrified for disposal in the high-level waste repository. The decontaminated effluent would be solidified for near-surface disposal.

  2. Cesium removal demonstration utilizing crystalline silicotitanate sorbent for processing Melton Valley Storage Tank supernate: Final report

    SciTech Connect

    Walker, J.F. Jr.; Taylor, P.A.; Cummins, R.L.

    1998-03-01

    This report provides details of the Cesium Removal Demonstration (CsRD), which was conducted at Oak Ridge National Laboratory (ORNL) on radioactive waste from the Melton Valley Storage Tanks. The CsRD was the first large-scale use of state-of-the-art sorbents being developed by private industry for the selective removal of cesium and other radionuclides from liquid wastes stored across the DOE complex. The crystalline silicotitanate sorbent used in the demonstration was chosen because of its effectiveness in laboratory tests using bench-scale columns. The demonstration showed that the cesium could be removed from the supernate and concentrated on a small-volume, solid waste form that would meet the waste acceptance criteria for the Nevada Test Site. During this project, the CsRD system processed > 115,000 L (30,000 gal) of radioactive supernate with minimal operational problems. Sluicing, drying, and remote transportation of the sorbent, which could not be done on a bench scale, were successfully demonstrated. The system was then decontaminated to the extent that it could be contact maintained with the use of localized shielding only. By utilizing a modular, transportable design and placement within existing facilities, the system can be transferred to different sites for reuse. The initial unit has now been removed from the process building and is presently being reinstalled for use in baseline operations at ORNL.

  3. Modeling and validating the grabbing forces of hydraulic log grapples used in forest operations

    Treesearch

    Jingxin Wang; Chris B. LeDoux; Lihai Wang

    2003-01-01

    The grabbing forces of log grapples were modeled and analyzed mathematically under operating conditions when grabbing logs from compact log piles and from bunch-like log piles. The grabbing forces are closely related to the structural parameters of the grapple, the weight of the grapple, and the weight of the log grabbed. An operational model grapple was designed and...

  4. Treatment options and flow sheets for ORNL low-level liquid waste supernate

    SciTech Connect

    Campbell, D.O.; Lee, D.D.

    1991-12-01

    Low-level liquid waste (LLLW) is currently contained in ten 50,000-gal storage and process tanks at Oak Ridge National Laboratory (ORNL) and as residual heels in an number of older tanks that are no longer in active use. Plans are being formulated to treat these wastes, along with similar LLLW that will be generated in the future, to yield decontaminated effluents that can be disposed of and stable solid waste forms that can be permanently stored. The primary purpose of this report is to summarize the performance of the most promising separations processes that are appropriate for treatment of the LLLW supernate solution to remove the two dominant radionuclides, {sup 137}Cs and {sup 90}Sr; to indicate how they can be integrated into an effective flowsheet; and to estimate the expected performance of such flowsheets in comparison to waste treatment requirements.

  5. GrabCut-based human segmentation in video sequences.

    PubMed

    Hernández-Vela, Antonio; Reyes, Miguel; Ponce, Víctor; Escalera, Sergio

    2012-11-09

    In this paper, we present a fully-automatic Spatio-Temporal GrabCut human segmentation methodology that combines tracking and segmentation. GrabCut initialization is performed by a HOG-based subject detection, face detection, and skin color model. Spatial information is included by Mean Shift clustering whereas temporal coherence is considered by the historical of Gaussian Mixture Models. Moreover, full face and pose recovery is obtained by combining human segmentation with Active Appearance Models and Conditional Random Fields. Results over public datasets and in a new Human Limb dataset show a robust segmentation and recovery of both face and pose using the presented methodology.

  6. GrabCut-Based Human Segmentation in Video Sequences

    PubMed Central

    Hernández-Vela, Antonio; Reyes, Miguel; Ponce, Víctor; Escalera, Sergio

    2012-01-01

    In this paper, we present a fully-automatic Spatio-Temporal GrabCut human segmentation methodology that combines tracking and segmentation. GrabCut initialization is performed by a HOG-based subject detection, face detection, and skin color model. Spatial information is included by Mean Shift clustering whereas temporal coherence is considered by the historical of Gaussian Mixture Models. Moreover, full face and pose recovery is obtained by combining human segmentation with Active Appearance Models and Conditional Random Fields. Results over public datasets and in a new Human Limb dataset show a robust segmentation and recovery of both face and pose using the presented methodology. PMID:23202215

  7. Supplemental Report: Technetium-99 On-Line Monitoring by Beta Counting for Hanford Supernate Waste Solutions

    SciTech Connect

    Sigg, R.A.

    2000-08-23

    SRTC is investigating approaches for near-real-time monitoring of 99Tc at selected points in the proposed pretreatment process for Hanford supernate waste solutions. The desired monitoring points include both the feed to and decontaminated product from a technetium-removal column. A Cs-removal column precedes technetium decontamination in the proposed process. Our earlier report (Ref. 1) showed that a simple flow-through beta counting system can easily meet 99Tc detection limit goals for solutions that do not contain interfering radionuclides; however, concentrations of residual interferences were too high in process solutions at the desired monitoring points. That is, technetium can not be measured without additional purification. In this supplement, ADS evaluated ion exchange cartridges to remove radionuclides that interfere with 99Tc beta measurements. Tests on radioactive standard solutions and on Hanford Envelope B (AZ-102) pretreated process solutions show that 99Tc passes through the cation removal cartridge to an on-line beta counter, and that interfering radionuclides were nearly totally removed. Envelope B solutions included both the process's Cs-removed feed to the Tc-removal column and product from the column. Analyses of these solutions before and after the cation exchange cartridge show that the concentration of the primary interference, 137Cs, was reduced to about 1/250th of the feed concentration.

  8. Tank 241-AX-101 grab samples 1AX-97-1 through 1AX-97-3 analytical results for the final report

    SciTech Connect

    Esch, R.A.

    1997-11-13

    This document is the final report for tank 241-AX-101 grab samples. Four grab samples were collected from riser 5B on July 29, 1997. Analyses were performed on samples 1AX-97-1, 1AX-97-2 and 1AX-97-3 in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Rev. 1: Fowler, 1995; Rev. 2: Mulkey and Miller, 1997). The analytical results are presented in Table 1. No notification limits were exceeded. All four samples contained settled solids that appeared to be large salt crystals that precipitated upon cooling to ambient temperature. Less than 25 % settled solids were present in the first three samples, therefore only the supernate was sampled and analyzed. Sample 1AX-97-4 contained approximately 25.3 % settled solids. Compatibility analyses were not performed on this sample. Attachment 1 is provided as a cross-reference for relating the tank farm customer identification numbers with the 222-S Laboratory sample numbers and the portion of sample analyzed. Table 2 provides the appearance information. All four samples contained settled solids that appeared to be large salt crystal that precipitated upon cooling to ambient temperature. The settled solids in samples 1AX-97-1, 1AX-97-2 and 1AX-97-3 were less than 25% by volume. Therefore, for these three samples, two 15-mL subsamples were pipetted to the surface of the liquid and submitted to the laboratory for analysis. In addition, a portion of the liquid was taken from each of the these three samples to perform an acidified ammonia analysis. No analysis was performed on the settled solid portion of the samples. Sample 1AX-97-4 was reserved for the Process Chemistry group to perform boil down and dissolution testing in accordance with Letter of Instruction for Non-Routine Analysis of Single-Shell Tank 241-AX-101 Grab Samples (Field, 1997) (Correspondence 1). However, prior to the analysis, the sample was inadvertently

  9. High-density-lipoprotein cholesterol in heparin-MnCl2 supernates determined with the Dow enzymic method after precipitation of Mn2+ with HCO3-.

    PubMed

    Bachorik, P S; Walker, R E; Virgil, D G

    1984-06-01

    Manganese interferes with enzymic cholesterol methods. In this study, we enzymically measured high-density-lipoprotein (HDL) cholesterol in heparin-Mn2+ supernates that had been treated with NaHCO3 (91 mmol/L) to precipitate Mn2+, and compared results with those by an automated Liebermann- Burchard method. For untreated supernates of 96 fresh plasma samples, the enzymic values were 10.4% higher than comparison-method values, a bias that declined to +2.3% for treated supernates. For 72 sera promptly frozen and stored after collection, the enzymic values for untreated and treated supernates were, respectively, 6.0% and 0.5% higher than comparison-method values. In all cases, the magnitude of the bias was independent of the concentrations of cholesterol, triglyceride, and HDL-cholesterol. Enzymic HDL-cholesterol measurements in NaHCO3-treated heparin-Mn2+ supernates prepared from four pooled serum controls agreed within 21 mg/L with values established for these pools by the Centers for Disease Control. We conclude that the accuracy of enzymic HDL cholesterol measurements in heparin-Mn2+ supernates in considerably increased by treatment with NaHCO3.

  10. Solid Phase Characterization of Tank 241-C-105 Grab Samples

    SciTech Connect

    Ely, T. M.; LaMothe, M. E.; Lachut, J. S.

    2016-01-11

    The solid phase characterization (SPC) of three grab samples from single-shell Tank 241-C-105 (C-105) that were received at the laboratory the week of October 26, 2015, has been completed. The three samples were received and broken down in the 11A hot cells.

  11. 33. REPAIRMEN ARE AT WORK ON THE HULETT'S GRAB BUCKET. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    33. REPAIRMEN ARE AT WORK ON THE HULETT'S GRAB BUCKET. BUCKET IS SEEN HERE IN ITS FULL OPEN POSITION. - Pennsylvania Railway Ore Dock, Lake Erie at Whiskey Island, approximately 1.5 miles west of Public Square, Cleveland, Cuyahoga County, OH

  12. Grab Samplers for Benthic Macroinvertebrates in the Lower Mississippi River.

    DTIC Science & Technology

    1982-07-01

    River 26. AftTRACT (Cfeo do reversn e o if neem mod Identiy by block nuibot) -- he use of any one single type and size of existing grab sampler for...was from the stern of a 40-ft* vessel. The vessel’s bow was tied to a tree on the shoreline. Although the range of water depths during sampling was

  13. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... with a bulwark, chain link fencing, wire mesh, or an equivalent. (f) A suitable storm rail or hand grab...

  14. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... weather decks accessible to individuals. Where space limitations make deck rails impractical, hand grabs...

  15. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... weather decks accessible to individuals. Where space limitations make deck rails impractical, hand grabs...

  16. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Deck rails, lifelines, storm rails, and hand grabs. 28..., lifelines, storm rails, and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section... weather decks accessible to individuals. Where space limitations make deck rails impractical, hand grabs...

  17. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... weather decks accessible to individuals. Where space limitations make deck rails impractical, hand grabs...

  18. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... weather decks accessible to individuals. Where space limitations make deck rails impractical, hand grabs...

  19. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28..., storm rails and hand grabs. (a) Except as otherwise provided in paragraph (d) of this section, deck... weather decks accessible to individuals. Where space limitations make deck rails impractical, hand grabs...

  20. Final report for tank 241-AN-102, grab samples 2AN-95-1 through 2AN-95-6 and 102-AN-1 through 102-AN-4

    SciTech Connect

    Esch, R.A.

    1996-03-21

    Ten grab samples (2AN-95-1, 2, 3, 4A, 5A; 102-AN-1, 2, 3(A), 3(B), and 4) and one field blank (2AN-95-6) were taken from tank 241-AN-102. In support of the safety screening program, total organic carbon and cyanide were performed as secondary analyses because the differential scanning calorimetry results exceeded the notification limit. These were compared to safety screening limits at a confidence level of 95%. Waste compatibility analyses were performed on the 3 supernate samples and the field blank from the latest sampling event. Results presented in the 45 day and in this report show that the waste in Tank 241-AN-1D2 has energetics greater than 480 J/g (dry) and total organic carbon > 3 wt%; however, with a moisture content > 17 wt%, the tank may be considered ``conditionally`` safe in accordance with the Data Quality Objective to Support Resolution of the Organic Complexant Safety Issue.

  1. Experimental Determination and Thermodynamic Modeling of Electrical Conductivity of SRS Waste Tank Supernate

    SciTech Connect

    Pike, J.; Reboul, S.

    2015-06-01

    SRS High Level Waste Tank Farm personnel rely on conductivity probes for detection of incipient overflow conditions in waste tanks. Minimal information is available concerning the sensitivity that must be achieved such that that liquid detection is assured. Overly sensitive electronics results in numerous nuisance alarms for these safety-related instruments. In order to determine the minimum sensitivity required of the probe, Tank Farm Engineering personnel need adequate conductivity data to improve the existing designs. Little or no measurements of liquid waste conductivity exist; however, the liquid phase of the waste consists of inorganic electrolytes for which the conductivity may be calculated. Savannah River Remediation (SRR) Tank Farm Facility Engineering requested SRNL to determine the conductivity of the supernate resident in SRS waste Tank 40 experimentally as well as computationally. In addition, SRNL was requested to develop a correlation, if possible, that would be generally applicable to liquid waste resident in SRS waste tanks. A waste sample from Tank 40 was analyzed for composition and electrical conductivity as shown in Table 4-6, Table 4-7, and Table 4-9. The conductivity for undiluted Tank 40 sample was 0.087 S/cm. The accuracy of OLI Analyzer™ was determined using available literature data. Overall, 95% of computed estimates of electrical conductivity are within ±15% of literature values for component concentrations from 0 to 15 M and temperatures from 0 to 125 °C. Though the computational results are generally in good agreement with the measured data, a small portion of literature data deviates as much as ±76%. A simplified model was created that can be used readily to estimate electrical conductivity of waste solution in computer spreadsheets. The variability of this simplified approach deviates up to 140% from measured values. Generally, this model can be applied to estimate the conductivity within a factor of two. The comparison of the

  2. Adding additional grab bars as a possible strategy for safer hospital stays.

    PubMed

    Tzeng, Huey-Ming; Yin, Chang-Yi

    2010-02-01

    Patient room design should fulfill the safety needs of most patients. This article addresses the safety concerns related to grab bars and handrails (a United States-based review) and describes our proposed innovative approaches to promote safer hospital stays. The fixed augmentation of high-low grab bars and handrails can economically prevent inpatient falls in the areas commonly used by patients (e.g., patient rooms, patients' bathrooms, and hallways). The optimum grab bar and handrail configurations require further research. Revisions to guidelines for health care facilities related to grab bars and handrails should allow a range that respond to age- and disability-specific needs.

  3. Ion exchange removal of cesium from simulated and actual supernate from Hanford tanks 241-SY-101 and 241-SY-103

    SciTech Connect

    Brown, G.N.; Bontha, J.R.; Carlson, C.D.

    1995-09-01

    Pacific Northwest Laboratory (PNL), in conjunction with the Process Chemistry and Statistics Section of Westinghouse Hanford Company (WHC), conducted this study as part of the Supernatant Treatment Development Task for the Initial Pretreatment Module (IPM) Applied Engineering Project. The study assesses the performance of the CS-100 ion exchange material for removing cesium from simulated and actual alkaline supernate from Hanford tanks 241-SY-101 and 241-SY-103. The objective of these experiments is to compare the cesium ion exchange loading and elution profiles of actual and simulated wastes. Specific experimental objectives include (1) demonstration of decontamination factors (DF) for cesium removal, 92) verification of simulant performance, (3) investigation of waste/exchanger chemistry, and (4) determination of the radionuclide content of the regenerated CS-100 resin prior to disposal.

  4. Function of upper esophageal sphincter during swallowing: the grabbing effect.

    PubMed

    Pouderoux, P; Kahrilas, P J

    1997-05-01

    This study investigated deglutitive axial force developed within the pharynx, upper esophageal sphincter (UES), and cervical esophagus. Position and deglutitive excursion of the UES were determined using combined manometry and videofluoroscopy in eight healthy volunteers. Deglutitive clearing force was quantified with a force transducer to which nylon balls of 6- or 8-mm diameter were tethered and positioned within the oropharynx, hypopharynx, UES, and cervical esophagus. Axial force recordings were synchronized with videofluoroscopic imaging. Clearing force was dependent on both sphere diameter (P < 0.05) and location, with greater force exhibited in the hypopharynx and UES compared with the oropharynx and esophagus (P < 0.05). Within the UES, the onset of traction force coincided with passage of the pharyngeal clearing wave but persisted well beyond this. On videofluoroscopy, the persistent force was associated with the aboral motion of the ball caught within the UES. Force abated with gradual slippage of the UES around the ball. The force attributable to the combination of UES contraction and laryngeal descent was named the grabbing effect. The grabbing effect functions to transfer luminal contents distal to the laryngeal inlet at the end of the pharyngeal swallow, presumably acting to prevent regurgitation and/or aspiration of swallowed material.

  5. Tank 241AP104 Grab Sampling and Analysis Plan

    SciTech Connect

    TEMPLETON, A.M.

    2000-11-09

    This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for samples obtained from tank 241-AP-104. The purpose of this sampling event is to obtain information about the characteristics of the contents of 241-AP-104 required to provide sample material to the Waste Treatment Contractor. Grab samples will be obtained from riser 001 to provide sufficient material for the chemical analyses and tests required to satisfy these data quality objectives and ICD-23. The 222-S Laboratory will receive samples; composite the samples; perform chemical analyses on composite samples; and provide samples to the Waste Treatment Contractor and the Process Chemistry Laboratory. The Process Chemistry Laboratory at the 222-S Laboratory Complex will perform process tests to evaluate the behavior of the 241-AP-104 waste undergoing the retrieval and treatment scenarios defined in the applicable DQOs. The Waste Treatment Contractor will perform process verification and waste form qualification tests. Requirements for analyses of samples originating in the L & H DQO process tests will be documented in the corresponding test plan (Person 2000) and are not within the scope of this SAP. This report provides the general methodology and procedures to be used in the preparation, retrieval, transport, analysis, and reporting of results from grab samples retrieved from tank 241-AP-104.

  6. Grabbed Early by Vocabulary: Nation's Ongoing Contributions to Vocabulary and Reading in a Foreign Language

    ERIC Educational Resources Information Center

    Coxhead, Averil

    2010-01-01

    "I was grabbed early [by vocabulary] and never let go. That's why it's difficult to explain why I enjoy working in this area. I just love doing it," said Paul Nation (in Coxhead, 2005, p. 46). How many people get grabbed by an area of research, teaching, and learning that continues to engage interest and cause excitement after 30 years? In this…

  7. 40 CFR 90.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 20 2011-07-01 2011-07-01 false Exhaust gas analytical system; CVS... KILOWATTS Gaseous Exhaust Test Procedures § 90.423 Exhaust gas analytical system; CVS grab sample. (a... analytical systems used for analyzing CVS grab “bag” samples from spark-ignition engines. Since...

  8. 40 CFR 91.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 20 2014-07-01 2013-07-01 true Exhaust gas analytical system; CVS grab... Procedures § 91.423 Exhaust gas analytical system; CVS grab sample. (a) Schematic drawings. Figure 4 in appendix B of this subpart is a schematic drawing of the exhaust gas analytical system used for...

  9. 40 CFR 90.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 21 2013-07-01 2013-07-01 false Exhaust gas analytical system; CVS... KILOWATTS Gaseous Exhaust Test Procedures § 90.423 Exhaust gas analytical system; CVS grab sample. (a... analytical systems used for analyzing CVS grab “bag” samples from spark-ignition engines. Since...

  10. 40 CFR 90.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 21 2012-07-01 2012-07-01 false Exhaust gas analytical system; CVS... KILOWATTS Gaseous Exhaust Test Procedures § 90.423 Exhaust gas analytical system; CVS grab sample. (a... analytical systems used for analyzing CVS grab “bag” samples from spark-ignition engines. Since various...

  11. Compatibility grab sampling and analysis plan for fiscal year 1999

    SciTech Connect

    SASAKI, L.M.

    1999-05-12

    This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for grab samples obtained to address waste compatibility. Analytical requirements are taken from two revisions of the Compatibility data quality objectives (DQOs). Revision 1 of the DQO (Fowler 1995) listed analyses to be performed to meet both safety and operational data needs for the Compatibility program. Revision 2A of the DQO (Mulkey and Miller 1998) addresses only the safety-related requirements; the operational requirements of Fowler (1995) have not been superseded by Mulkey and Miller (1998). Therefore, safety-related data needs are taken from Mulkey and Miller (1998) and operational-related data needs are taken from Fowler (1995). Ammonia and total alpha analyses are also performed in accordance with Fowler (1998a, 1998b).

  12. Double-contained receiver tank 244-TX, grab samples, 244TX-97-3 analytical results for the final report

    SciTech Connect

    Esch, R.A.

    1997-08-13

    This document is the final report for the double-contained receiver tank (DCRT) 244-TX grab samples. Three grabs samples were collected from riser 8 on May 29, 1997. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO). The analytical results are presented in a table.

  13. Cdk5 Regulation of the GRAB-Mediated Rab8-Rab11 Cascade in Axon Outgrowth.

    PubMed

    Furusawa, Kotaro; Asada, Akiko; Urrutia, Pamela; Gonzalez-Billault, Christian; Fukuda, Mitsunori; Hisanaga, Shin-Ichi

    2017-01-25

    Neurons communicate with each other through their axons and dendrites. However, a full characterization of the molecular mechanisms involved in axon and dendrite formation is still incomplete. Neurite outgrowth requires the supply of membrane components for surface expansion. Two membrane sources for axon outgrowth are suggested: Golgi secretary vesicles and endocytic recycling endosomes. In non-neuronal cells, trafficking of secretary vesicles from Golgi is regulated by Rab8, a member of Rab small GTPases, and that of recycling endosomes is by Rab11, another member of Rabs. However, whether these vesicles are coordinately or independently transported in growing axons is unknown. Herein, we find that GRAB, a guanine nucleotide exchange factor for Rab8, is a novel regulator of axon outgrowth. Knockdown of GRAB suppressed axon outgrowth of cultured mouse brain cortical neurons. GRAB mediates the interaction between Rab11A and Rab8A, and this activity is regulated by phosphorylation at Ser169 and Ser180 by Cdk5-p35. The nonphosphorylatable GRAB mutant S169/180A promoted axonal outgrowth to a greater extent than did the phosphomimetic GRAB mutant S169/180D. Phosphorylation of GRAB suppressed its guanine nucleotide exchange factor activity and its ability to recruit Rab8A- to Rab11A-positive endosomes. In vivo function of GRAB and its Cdk5-phophorylation were shown in migration and process formation of developing neurons in embryonic mouse brains. These results indicate that GRAB regulates axonal outgrowth via activation and recruitment of Rab8A- to Rab11A-positive endosomes in a Cdk5-dependent manner. While axon outgrowth requires membrane supply for surface expansion, the molecular mechanisms regulating the membrane transport in growing axons remain unclear. Here, we demonstrate that GRAB, a guanine nucleotide exchange factor for Rab8, is a novel regulator of axon outgrowth. GRAB promotes the axonal membrane transport by mediating the interaction between Rab11 and Rab

  14. SRS Tank 38H and 43H Supernate Foaming Studies and Tank 38H Reel Tape Solids Characterization

    SciTech Connect

    King, W. D.; Restivo, M. L.; Martino, C. J.

    2014-12-04

    Radioactive waste samples retrieved from Savannah River Site (SRS) Tanks 38H and 43H (concentrate receipt and feed tanks, respectively, for the 2H Evaporator system) were evaluated with regard to their tendency to form foams during air sparging. This work was conducted due to recent processing issues and outages in the evaporator that were believed to have resulted from sample foaming. The samples evaluated for foam formation included supernate collected in April of 2014 (near the time of the evaporator outage) as well as historical samples available within the SRNL shielded cells facility. The April samples included one Tank 43H surface sample (HTF-43-14-42), one Tank 43H sub-surface sample (HTF-43-14-43), and one Tank 38H (HTF-38-14-41) surface sample. In addition, two Tank 43H samples (HTF-43-14-8 and HTF-43-14-9) and one Tank 38H sample (HTF-38-14-6) were also evaluated along with a blended sample of various historical Tank 38H and 43H samples. Characterization results for the April samples are also provided. The composition of the samples was similar to historical evaporator system samples received at SRNL.

  15. Effective Swimmer’s Action during the Grab Start Technique

    PubMed Central

    Mourão, Luis; de Jesus, Karla; Roesler, Hélio; Machado, Leandro J.; Fernandes, Ricardo J.; Vilas-Boas, João Paulo; Vaz, Mário A. P.

    2015-01-01

    The external forces applied in swimming starts have been often studied, but using direct analysis and simple interpretation data processes. This study aimed to develop a tool for vertical and horizontal force assessment based on the swimmers’ propulsive and structural forces (passive forces due to dead weight) applied during the block phase. Four methodological pathways were followed: the experimented fall of a rigid body, the swimmers’ inertia effect, the development of a mathematical model to describe the outcome of the rigid body fall and its generalization to include the effects of the inertia, and the experimental swimmers’ starting protocol analysed with the inclusion of the developed mathematical tool. The first three methodological steps resulted in the description and computation of the passive force components. At the fourth step, six well-trained swimmers performed three 15 m maximal grab start trials and three-dimensional (3D) kinetic data were obtained using a six degrees of freedom force plate. The passive force contribution to the start performance obtained from the model was subtracted from the experimental force due to the swimmers resulting in the swimmers’ active forces. As expected, the swimmers’ vertical and horizontal active forces accounted for the maximum variability contribution of the experimental forces. It was found that the active force profile for the vertical and horizontal components resembled one another. These findings should be considered in clarifying the active swimmers’ force variability and the respective geometrical profile as indicators to redefine steering strategies. PMID:25978370

  16. Compatibility Grab Sampling and Analysis Plan for FY 2000

    SciTech Connect

    SASAKI, L.M.

    1999-12-29

    This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for grab samples obtained to address waste compatibility. It is written in accordance with requirements identified in Data Quality Objectives for Tank Farms Waste Compatibility Program (Mulkey et al. 1999) and Tank Farm Waste Transfer Compatibility Program (Fowler 1999). In addition to analyses to support Compatibility, the Waste Feed Delivery program has requested that tank samples obtained for Compatibility also be analyzed to confirm the high-level waste and/or low-activity waste envelope(s) for the tank waste (Baldwin 1999). The analytical requirements to confirm waste envelopes are identified in Data Quality Objectives for TWRS Privatization Phase I: Confirm Tank T is an Appropriate Feed Source for Low-Activity Waste Feed Batch X (Nguyen 1999a) and Data Quality Objectives for RPP Privatization Phase I: Confirm Tank T is an Appropriate Feed Source for High-Level Waste Feed Batch X (Nguyen 1999b).

  17. Color Image Segmentation Based on Different Color Space Models Using Automatic GrabCut

    PubMed Central

    Ebied, Hala Mousher; Hussein, Ashraf Saad; Tolba, Mohamed Fahmy

    2014-01-01

    This paper presents a comparative study using different color spaces to evaluate the performance of color image segmentation using the automatic GrabCut technique. GrabCut is considered as one of the semiautomatic image segmentation techniques, since it requires user interaction for the initialization of the segmentation process. The automation of the GrabCut technique is proposed as a modification of the original semiautomatic one in order to eliminate the user interaction. The automatic GrabCut utilizes the unsupervised Orchard and Bouman clustering technique for the initialization phase. Comparisons with the original GrabCut show the efficiency of the proposed automatic technique in terms of segmentation, quality, and accuracy. As no explicit color space is recommended for every segmentation problem, automatic GrabCut is applied with RGB, HSV, CMY, XYZ, and YUV color spaces. The comparative study and experimental results using different color images show that RGB color space is the best color space representation for the set of the images used. PMID:25254226

  18. Time-Dependent Modeling of Underwater Explosions by Convolving Similitude Source with Bandlimited Impulse from the CASS/GRAB Model

    DTIC Science & Technology

    2015-06-30

    with the farfield impulse response from the Comprehensive Acoustic System Simulation/Gaussian Ray Acoustic Bundle (CASS/GRAB) model. The impulse...Comprehensive Acoustic System Simulation/Gaussian Ray Acoustic Bundle (CASS/GRAB) Model Time-Dependent Computational Model Green’s Function Time...GRAB Comprehensive Acoustic System Simulation/Gaussian Ray Acoustic Bundle CW Continuous wave ESA Endangered Species Act FFT Fast Fourier

  19. Development of a new Global RAdiation Belt model: GRAB

    NASA Astrophysics Data System (ADS)

    Sicard-Piet, Angelica; Lazaro, Didier; Maget, Vincent; Rolland, Guy; Ecoffet, Robert; Bourdarie, Sébastien; Boscher, Daniel; Standarovski, Denis

    2016-07-01

    The well known AP8 and AE8 NASA models are commonly used in the industry to specify the radiation belt environment. Unfortunately, there are some limitations in the use of these models, first due to the covered energy range, but also because in some regions of space, there are discrepancies between the predicted average values and the measurements. Therefore, our aim is to develop a radiation belt model, covering a large region of space and energy, from LEO altitudes to GEO and above, and from plasma to relativistic particles. The aim for the first version is to correct the AP8 and AE8 models where they are deficient or not defined. At geostationary, we developed ten years ago for electrons the IGE-2006 model which was proven to be more accurate than AE8, and used commonly in the industry, covering a broad energy range, from 1keV to 5MeV. From then, a proton model for geostationary orbit was also developed for material applications, followed by the OZONE model covering a narrower energy range but the whole outer electron belt, a SLOT model to asses average electron values for 2GRAB model, as Global Radiation Belt model. We will present first beta version during this conference.

  20. Mass load estimation errors utilizing grab sampling strategies in a karst watershed

    USGS Publications Warehouse

    Fogle, A.W.; Taraba, J.L.; Dinger, J.S.

    2003-01-01

    Developing a mass load estimation method appropriate for a given stream and constituent is difficult due to inconsistencies in hydrologic and constituent characteristics. The difficulty may be increased in flashy flow conditions such as karst. Many projects undertaken are constrained by budget and manpower and do not have the luxury of sophisticated sampling strategies. The objectives of this study were to: (1) examine two grab sampling strategies with varying sampling intervals and determine the error in mass load estimates, and (2) determine the error that can be expected when a grab sample is collected at a time of day when the diurnal variation is most divergent from the daily mean. Results show grab sampling with continuous flow to be a viable data collection method for estimating mass load in the study watershed. Comparing weekly, biweekly, and monthly grab sampling, monthly sampling produces the best results with this method. However, the time of day the sample is collected is important. Failure to account for diurnal variability when collecting a grab sample may produce unacceptable error in mass load estimates. The best time to collect a sample is when the diurnal cycle is nearest the daily mean.

  1. Adaptation and Validation of a Nutrition Environment Measures Survey for University Grab-and-Go Establishments.

    PubMed

    Lo, Brian K C; Minaker, Leia; Chan, Alicia N T; Hrgetic, Jessica; Mah, Catherine L

    2016-03-01

    To adapt and validate a survey instrument to assess the nutrition environment of grab-and-go establishments at a university campus. A version of the Nutrition Environment Measures Survey for grab-and-go establishments (NEMS-GG) was adapted from existing NEMS instruments and tested for reliability and validity through a cross-sectional assessment of the grab-and-go establishments at the University of Toronto. Product availability, price, and presence of nutrition information were evaluated. Cohen's kappa coefficient and intra-class correlation coefficients (ICC) were assessed for inter-rater reliability, and construct validity was assessed using the known-groups comparison method (via store scores). Fifteen grab-and-go establishments were assessed. Inter-rater reliability was high with an almost perfect agreement for availability (mean κ = 0.995) and store scores (ICC = 0.999). The tool demonstrated good face and construct validity. About half of the venues carried fruit and vegetables (46.7% and 53.3%, respectively). Regular and healthier entrée items were generally the same price. Healthier grains were cheaper than regular options. Six establishments displayed nutrition information. Establishments operated by the university's Food Services consistently scored the highest across all food premise types for nutrition signage, availability, and cost of healthier options. Health promotion strategies are needed to address availability and variety of healthier grab-and-go options in university settings.

  2. 60-Day waste compatibility safety issues and final results for AY-102 grab samples

    SciTech Connect

    Nuzum, J.L.

    1997-01-31

    Four grab samples (2AY-96-15, 2AY-96-16, 2AY-96-17, and 2AY-96-18) were taken from Riser 15D of Tank 241-AY-102 on October 8, 1996, and received by 222-S Laboratory on October 8, 1996. These samples were analyzed in accordance with Compatibility Grab Sampling and Analysis Plan (TSAP) and Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) in support of the Waste Compatibility Program. No notifications were required based on sample results.

  3. 60-day waste compatibility safety issues and final results for TX-244 grab samples

    SciTech Connect

    Nuzum, J.L., Fluor Daniel Hanford

    1997-02-05

    Three grab samples (244-TX-96-1, 244-TX-96-2, and 244-TX-96-3) were taken from Riser 8 of Tank 241-TX-244 on October 18, 1996, and received by 222-S Laboratory on October 18, 1996. These samples were analyzed in accordance with Compatibility Grab Sampling and Analysis Plan (TSAP) and Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) in support ofthe Waste Compatibility Program. Notifications were made in accordance with TSAP for pH and OH- analyses. Upon further review, the pH notification was deemed unnecessary, as the notification limit did not apply to this tank.

  4. 46 CFR 28.810 - Deck rails, lifelines, storm rails and hand grabs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Deck rails, lifelines, storm rails and hand grabs. 28.810 Section 28.810 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY UNINSPECTED VESSELS REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Aleutian Trade Act Vessels § 28.810 Deck rails, lifelines...

  5. 40 CFR 90.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) AIR PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM NONROAD SPARK-IGNITION ENGINES AT OR BELOW 19... analytical systems used for analyzing CVS grab “bag” samples from spark-ignition engines. Since various... essentially free of CO2 and water vapor interference, the use of the conditioning column may be deleted....

  6. 40 CFR 91.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) AIR PROGRAMS (CONTINUED) CONTROL OF EMISSIONS FROM MARINE SPARK-IGNITION ENGINES Gaseous Exhaust Test... CVS grab “bag” samples from spark-ignition engines. Since various configurations can produce accurate... and water vapor interference, the use of the conditioning column may be deleted. (See §§ 91.317 and...

  7. 40 CFR 91.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 20 2011-07-01 2011-07-01 false Exhaust gas analytical system; CVS... Procedures § 91.423 Exhaust gas analytical system; CVS grab sample. (a) Schematic drawings. Figure 4 in appendix B of this subpart is a schematic drawing of the exhaust gas analytical system used for...

  8. 40 CFR 91.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 21 2013-07-01 2013-07-01 false Exhaust gas analytical system; CVS... Procedures § 91.423 Exhaust gas analytical system; CVS grab sample. (a) Schematic drawings. Figure 4 in appendix B of this subpart is a schematic drawing of the exhaust gas analytical system used for...

  9. Onufrienko holds a Grab Sample Container (GSC) in the SM during Expedition Four

    NASA Image and Video Library

    2002-05-23

    ISS004-E-12368 (23 May 2002) --- Cosmonaut Yury I. Onufrienko, Expedition Four mission commander representing Rosaviakosmos, holds a Grab Sample Container (GSC) in the Zvezda Service Module on the International Space Station (ISS). The GSC is used to take air samples in various modules as part of environmental quality control.

  10. Pettit uses a Grab Sample Container in the U.S. Laboratory during Expedition Six

    NASA Image and Video Library

    2003-01-22

    ISS006-E-20834 (22 January 2003) --- Astronaut Donald R. Pettit, Expedition Six NASA ISS science officer, holds a Grab Sample Container (GSC) in the Destiny laboratory on the International Space Station (ISS). GSC is used for collecting air samples as part of ISS environmental monitoring.

  11. Pettit uses a Grab Sample Container in the FGB during Expedition Six

    NASA Image and Video Library

    2003-01-22

    ISS006-E-20835 (22 January 2003) --- Astronaut Donald R. Pettit, Expedition 6 NASA ISS science officer, holds a Grab Sample Container (GSC) in the functional cargo block (FGB), or Zarya, on the International Space Station (ISS). GSC is used for collecting air samples as part of ISS environmental monitoring.

  12. 40 CFR 91.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 21 2012-07-01 2012-07-01 false Exhaust gas analytical system; CVS... Procedures § 91.423 Exhaust gas analytical system; CVS grab sample. (a) Schematic drawings. Figure 4 in appendix B of this subpart is a schematic drawing of the exhaust gas analytical system used for analyzing...

  13. Distributions of 14 elements on 60 selected absorbers from two simulant solutions (acid-dissolved sludge and alkaline supernate) for Hanford HLW Tank 102-SY

    SciTech Connect

    Marsh, S.F.; Svitra, Z.V.; Bowen, S.M.

    1993-10-01

    Sixty commercially available or experimental absorber materials were evaluated for partitioning high-level radioactive waste. These absorbers included cation and anion exchange resins, inorganic exchangers, composite absorbers, and a series of liquid extractants sorbed on porous support-beads. The distributions of 14 elements onto each absorber were measured from simulated solutions that represent acid-dissolved sludge and alkaline supernate solutions from Hanford high-level waste (HLW) Tank 102-SY. The selected elements, which represent fission products (Ce, Cs, Sr, Tc, and Y); actinides (U, Pu, and Am); and matrix elements (Cr, Co, Fe, Mn, Zn, and Zr), were traced by radionuclides and assayed by gamma spectrometry. Distribution coefficients for each of the 1680 element/absorber/solution combinations were measured for dynamic contact periods of 30 min, 2 h, and 6 h to provide sorption kinetics information for the specified elements from these complex media. More than 5000 measured distribution coefficients are tabulated.

  14. Using SPMDs for monitoring hydrophobic organic compounds in urban river water in Korea compared with using conventional water grab samples

    USGS Publications Warehouse

    Kim, Un-Jung; Kim, Hee Young; Alvarez, David A.; Lee, In-Seok; Oh, Jeong-Eun

    2014-01-01

    We aimed to verify the effectiveness of semi-permeablemembrane devices (SPMDs) formonitoring hydrophobic organic compounds, such as polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs), that are not easy to detect using conventional grab samples (because of their low concentrations), in water.We used SPMDs and grab samples to monitor PCBs and PBDEs upstream and downstream of a sewage treatment plant (STP) in the Suyeong River in Busan, Korea. Concentrations in three different phases (freely dissolved, apparently dissolved, and particulate) were measured, to investigate the aquatic fate of PCBs and PBDEs. The freely dissolved (SPMD) concentrations were 2–3 times higher than the apparently dissolved and particulate phase (grab sample) concentrations. No meaningful relationships were found between the total PCB and PBDE concentrations of the grab sample and SPMD sample because of the different partitioning behaviors and detection frequencies of the individual chemicals. However, the summed concentrations of specific PCB and PBDE congeners (that were abundant in all samples) in the grab and SPMD samples correlated well (r2 = 0.7451 for PCBs 28 + 52 + 153, r2 = 0.9987 for PBDEs 28 + 47 + 99). The PBDE concentrations measured using SPMDs decreased with increasing distance from the STP, but no apparent dilution effect was found in the grab samples. Our results show that SPMDs could be used to support grab sampling for specific chemicals, or to trace chemical sources (such as STPs) to the aquatic environment.

  15. COMPARISON OF FOUR ARTIFICIAL SUBSTRATES AND THE PONAR GRAB FOR BENTHIC INVERTEBRATE COLLECTION.

    USGS Publications Warehouse

    Slack, Keith V.; Ferreira, Rodger F.; Averett, Robert C.

    1986-01-01

    Four different bottom-placed artificial substrates were compared with the Ponar grab for collecting benthic invertebrates. Artificial substrate samples of organisms were larger and more diverse than those of the grab. Barbeque Basket samplers caught the most taxa and individuals and Beak Trays caught the least. Chironomids and crustaceans were dominant in artificial substrate samples. Exposure habitat (left or right bank) determined taxa availability, whereas sampler design determined suitability for colonization by the taxa. Diversity for Beak Tray samples was lower than that for other artificial substrates but higher than for Ponar samples. The Barbeque Basket, Bull Basket, and Multiple Plate samples were taxonomically similar. Ponar samples were different, and Beak Trays were of intermediate similarity. Additional study results are discussed.

  16. Waste compatibility safety issues and final results for Tank 241-AP-103 grab samples

    SciTech Connect

    Nuzum, J.L.

    1997-10-02

    Three grab samples (3AP-97-2, 3AP-97-3, and 3AP-97-4) were taken from Riser 1 of Tank 241-AP-103 on August 21, 1997, and received by 222-S Laboratory on August 22, 1997. These samples were analyzed in accordance with Compatibility Grab Sampling and Analysis Plan for Fiscal Year 1997 (TSAP) (Field, 1997) and Data Quality Objectives for Tank Farms Waste and Compatibility Program (Mulkey et. al., 1995) (DQO) in support of the Waste Compatibility Program. No notifications were required based on sample results. Appearance and Sample Breakdown Attachment 1 illustrates subsamples generated in the laboratory for analyses and identifies their sources. Furthermore, this reference relates tank farm identification numbers to their corresponding 222-S Laboratory Information Management System sample numbers. Table 1 summarizes appearance information and over-the-top (OTR) dose readings performed on each sample. For each sample, two 20 ml subsamples were created for inorganic and radiochemical analyses.

  17. Tank 241-AP-103, grab sample 3AP-97-1 analytical results for the final report

    SciTech Connect

    Esch, R.A.

    1997-04-23

    This document is the final analytical laboratory report for the tank 241-AP-103 grab sample. One grab sample was collected from Riser 1{at}90{sup o} on March 19, 1997. Analyses were performed to verify compliance status with corrosion control criteria in accordance with the Letter of Instruction for Tank 241-AP-103 Grab Sample Analyses (LOI) (Field, 1997), the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasakid, 1997) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Fowler, 1995). The sample results for pH were less than 12 indicating that the tank contents were caustic deficient. A notification for low hydroxide (< 0.01 M) was made to East Tank Farms Operations based on the pH result.

  18. A comparison of surface-grab and cross sectionally integrated stream-water-quality sampling methods

    USGS Publications Warehouse

    Martin, G.R.; Smoot, J.L.; White, K.D.

    1992-01-01

    Stream sampling for water quality data has commonly employed simple surface-grab procedures as opposed to more involved, cross sectionally integrated techniques. Paired samples for analysis of selected constituents were collected over various flow conditions at four sites to evaluate differences between the two sampling methods. Concentrations of dissolved constituents were not consistently different. However, concentrations of suspended sediment and the total forms of some sediment-associated constituents, such as phosphorus, iron, and manganese, were significantly lower in the surface-grab samples than in the cross sectionally integrated samples. The largest median percent difference in concentration for a site was 60% (total recoverable manganese). Median percent differences in concentration for sediment-associated constituents considering all sites grouped were in the range of 20-25%. The surface-grab samples underrepresented concentrations of suspended sediment and some sediment-associated constituents, thus limiting the applicability of such data for certain purposes. An association was also demonstrated between site streamflow characteristics and the observed differences.

  19. GRAbB: Selective Assembly of Genomic Regions, a New Niche for Genomic Research

    PubMed Central

    Zhang, Hao; van Diepeningen, Anne D.; van der Lee, Theo A. J.; Waalwijk, Cees; de Hoog, G. Sybren

    2016-01-01

    GRAbB (Genomic Region Assembly by Baiting) is a new program that is dedicated to assemble specific genomic regions from NGS data. This approach is especially useful when dealing with multi copy regions, such as mitochondrial genome and the rDNA repeat region, parts of the genome that are often neglected or poorly assembled, although they contain interesting information from phylogenetic or epidemiologic perspectives, but also single copy regions can be assembled. The program is capable of targeting multiple regions within a single run. Furthermore, GRAbB can be used to extract specific loci from NGS data, based on homology, like sequences that are used for barcoding. To make the assembly specific, a known part of the region, such as the sequence of a PCR amplicon or a homologous sequence from a related species must be specified. By assembling only the region of interest, the assembly process is computationally much less demanding and may lead to assemblies of better quality. In this study the different applications and functionalities of the program are demonstrated such as: exhaustive assembly (rDNA region and mitochondrial genome), extracting homologous regions or genes (IGS, RPB1, RPB2 and TEF1a), as well as extracting multiple regions within a single run. The program is also compared with MITObim, which is meant for the exhaustive assembly of a single target based on a similar query sequence. GRAbB is shown to be more efficient than MITObim in terms of speed, memory and disk usage. The other functionalities (handling multiple targets simultaneously and extracting homologous regions) of the new program are not matched by other programs. The program is available with explanatory documentation at https://github.com/b-brankovics/grabb. GRAbB has been tested on Ubuntu (12.04 and 14.04), Fedora (23), CentOS (7.1.1503) and Mac OS X (10.7). Furthermore, GRAbB is available as a docker repository: brankovics/grabb (https://hub.docker.com/r/brankovics/grabb/). PMID

  20. GRAbB: Selective Assembly of Genomic Regions, a New Niche for Genomic Research.

    PubMed

    Brankovics, Balázs; Zhang, Hao; van Diepeningen, Anne D; van der Lee, Theo A J; Waalwijk, Cees; de Hoog, G Sybren

    2016-06-01

    GRAbB (Genomic Region Assembly by Baiting) is a new program that is dedicated to assemble specific genomic regions from NGS data. This approach is especially useful when dealing with multi copy regions, such as mitochondrial genome and the rDNA repeat region, parts of the genome that are often neglected or poorly assembled, although they contain interesting information from phylogenetic or epidemiologic perspectives, but also single copy regions can be assembled. The program is capable of targeting multiple regions within a single run. Furthermore, GRAbB can be used to extract specific loci from NGS data, based on homology, like sequences that are used for barcoding. To make the assembly specific, a known part of the region, such as the sequence of a PCR amplicon or a homologous sequence from a related species must be specified. By assembling only the region of interest, the assembly process is computationally much less demanding and may lead to assemblies of better quality. In this study the different applications and functionalities of the program are demonstrated such as: exhaustive assembly (rDNA region and mitochondrial genome), extracting homologous regions or genes (IGS, RPB1, RPB2 and TEF1a), as well as extracting multiple regions within a single run. The program is also compared with MITObim, which is meant for the exhaustive assembly of a single target based on a similar query sequence. GRAbB is shown to be more efficient than MITObim in terms of speed, memory and disk usage. The other functionalities (handling multiple targets simultaneously and extracting homologous regions) of the new program are not matched by other programs. The program is available with explanatory documentation at https://github.com/b-brankovics/grabb. GRAbB has been tested on Ubuntu (12.04 and 14.04), Fedora (23), CentOS (7.1.1503) and Mac OS X (10.7). Furthermore, GRAbB is available as a docker repository: brankovics/grabb (https://hub.docker.com/r/brankovics/grabb/).

  1. Evidence of bovine immunoglobulin G1 (IgG1) protease activity in partially purified culture supernate of Pasteurella haemolytica A1.

    PubMed Central

    Lee, C W; Shewen, P E

    1996-01-01

    In the bovine respiratory tract, IgG1 is a major secretory immunoglobulin (Ig), and both IgG1 and IgG2 are believed to be important in defense against pneumonic pasteurellosis (shipping fever) in calves. Here we provide evidence for hydrolysis of IgG1 in the presence of partially purified culture supernate (ppCS) from the respiratory pathogen Pasteurella haemolytica A1. Bovine IgG1 was hydrolysed sequentially into three distinct bands (approximately 39, 12, and 7 kDa respectively). Furthermore, partial hydrolysis of bovine IgG2 was observed, but neither bovine IgA nor IgM were affected by incubation with ppCS. These findings suggest that the production of an IgG1-specific protease by P. haemolytica A1 may be a virulence mechanism contributing to the pathogenesis of bovine pneumonic pasteurellosis. Images Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. PMID:8785718

  2. Column Performance Testing of Superlig 639 Resin with Simulated Hanford Waste Supernates: Identification of the Primary Sorbing Species and Detailed Characterization of their Desorption Profiles

    SciTech Connect

    King, WD

    2003-11-10

    Several bench-scale column tests (resin bed volume less than or equal to 75 mL) have been conducted with SuperLig 639 resin and simulated Hanford waste supernates. Rhenium (surrogate for technetium in actual waste samples) breakthrough profiles were determined for three simulant compositions which are representative of the basic waste categories requiring treatment in the Hanford River Protection Project Waste Treatment Plant. Considerable loading performance variability was observed between the three waste types, although the resin is effective at rhenium removal from each solution. Careful and frequent analysis during elution studies conducted at the conclusion of the column loading tests confirmed that sodium nitrate and sodium perrhenate ion pairs are primary sorbing species on SuperLig 639 resin. Furthermore, it was discovered that potassium nitrate and potassium perrhenate salts are significant competitors for sorption sites on the resin. Successive desorption profiles were identified for all four salt species during elution tests. Integration of the desorption profiles revealed that the resin is selective for removal of the potassium salts over the sodium salts.

  3. The effect of a resistance training programme on the grab, track and swing starts in swimming.

    PubMed

    Breed, Ray V P; Young, Warren B

    2003-03-01

    The aim of this study was to establish the effectiveness of a resistance training programme, designed to improve vertical jumping ability, on the grab, swing and rear-weighted track starts in swimming. Twenty-three female non-competitive swimmers participated (age 19.9 +/- 2.4 years; mean +/- s). The diving techniques were practised weekly for 8 weeks. The participants were randomly assigned to a control group (n = 11) or a resistance-training group (n = 12), which trained three times a week for 9 weeks. The tests before and after the training programme involved performing each dive technique and six dry-land tests: two countermovement jumps (with and without arms), two isokinetic squats (bar speeds of 0.44 and 0.70 rad x s(-1)) and two overhead throws (with andwithout back extension). A repeated-measures multivariate analysis of variance was used to show that resistance training improved performance in the dry-land tests (P < 0.0001). No significant improvements due to training were found for any temporal, kinematic or kinetic variables within the grab or swing starts. Significant improvements (P < 0.05) were found for the track start for take-off velocity, take-off angle and horizontal impulse. The results suggest that the improved skill of vertical jumping was not transferred directly to the start, particularly in the grab technique. Non-significant trends towards improvement were observed within all starts for vertical force components, suggesting the need to practise the dives to retrain the changed neuromuscular properties.

  4. Power Grab

    ERIC Educational Resources Information Center

    Jacobs, Paula

    2009-01-01

    Peter Pistorino says there is a name for the way he thinks a school district should launch an energy conservation initiative: an "envelope" approach. The term refers to looking at the outside package of a structure to check for inefficiencies: Examine the observable, external sources of energy loss such as the doors, windows, insulation,…

  5. Power Grab

    ERIC Educational Resources Information Center

    Jacobs, Paula

    2009-01-01

    Peter Pistorino says there is a name for the way he thinks a school district should launch an energy conservation initiative: an "envelope" approach. The term refers to looking at the outside package of a structure to check for inefficiencies: Examine the observable, external sources of energy loss such as the doors, windows, insulation,…

  6. Grab Bag

    ERIC Educational Resources Information Center

    Occupational Outlook Quarterly, 2012

    2012-01-01

    This article presents brief items of interest to counselors and students. It introduces the National Student Exchange program that enables students in nearly 200 participating schools to attend classes on another campus in the United States for a semester or a year. It also describes the launching of social network jobs partnership by the U.S.…

  7. Grab Bag

    ERIC Educational Resources Information Center

    Occupational Outlook Quarterly, 2012

    2012-01-01

    This article presents brief items of interest to counselors and students. It presents a preview of internships and how to build careers for veterans. It also features the Public Service Loan Forgiveness program which helps an individual to repay federal student loans with public service. Lastly, it presents data from the most recent survey for the…

  8. REPORT ON ELECTROCHEMICAL CORROSION TESTING FOR TANK 241-AN-106 USING 2009 SAMPLING CAMPAIGN GRAB SAMPLES

    SciTech Connect

    WYRWAS RB

    2010-05-11

    Based on an ENRAF waste surface measurement taken February 1, 2009, double-shell tank (DST) 24l-AN-l06 (AN-106) contained approximately 278.98 inches (793 kgal) of waste. A zip cord measurement from the tank on February 1, 2009, indicated a settled solids layer of 9l.7 inches in height (280 kgal). The supernatant layer in February 2009, by difference, was approximately 187 inches deep (514 kgal). Laboratory results from AN-l06 February 1, 2009 (see Table 2) grab samples indicated the supernatant was below the chemistry limit that applied at the time as identified in HNF-SD-WM-TSR-006, 'Tank Farms Technical Safety Requirements', Administrative Control (AC) 5.16, 'Corrosion Mitigation Controls.' The limits have since been removed from the Technical Safety Requirements (TSR) and are captured in OSD-T-15l-00007, 'Operating Specifications for the Double-Shell Storage Tanks.' Problem evaluation request WRPS-PER-2009-0218 was submitted February 9,2009, to document the finding that the supernatant chemistry for grab samples taken from the middle and upper regions of the supernatant was noncompliant with the chemistry control limits. The lab results for the samples taken from the bottom region of the supernatant met AC 5.16 limits.

  9. "Grab" and good science: writing up the results of qualitative research.

    PubMed

    Gilgun, Jane F

    2005-02-01

    Qualitative researchers have an array of choices in how to write up their research. Yet many write in distanced, third-person voices and give short shrift to the voices of informants, as if neither they nor their informants were part of the research. In doing so, they might believe that their writing style is scientific. Unfortunately, such styles of writing not only silence their informants and themselves, but many times they also contradict the philosophies of science on which many forms of qualitative research are based. If our philosophies of science are science, then how we write up our research, when it is consistent with our science, must logically be scientific. "Grab," or writing that is both interesting and memorable, goes hand in hand with good science.

  10. A low-impedance, skin-grabbing, and gel-free EEG electrode.

    PubMed

    Sun, Mingui; Jia, Wenyan; Liang, Wei; Sclabassi, Robert J

    2012-01-01

    Inspired by the extraordinary object grabbing ability of certain insects (e.g., a grasshopper), we have developed a novel dry EEG electrode, called the skin screw electrode. Unlike the traditional disc electrode which requires several minutes to install, the installation of the skin screw electrode can be completed within seconds since no skin preparation and electrolyte application are required. Despite the drastic improvement in the installation time, our experiments have demonstrated that the skin screw electrode has a similar impedance value to that of the disc electrode. The skin screw electrode has a wide range of applications, such as clinical EEG diagnosis, epilepsy monitoring, emergency medicine, and home-based human-computer interface.

  11. Representation of solid and nutrient concentrations in irrigation water from tailwater recovery systems by surface water grab samples

    USDA-ARS?s Scientific Manuscript database

    Tailwater recovery (TWR) systems are being implemented on agricultural landscapes to create an additional source of irrigation water. Existing studies have sampled TWR systems using grab samples; however, the applicability of solids and nutrient concentrations in these samples to water being irrigat...

  12. RECOMMENDED OPERATING PROCEDURE NO. 56: COLLECTION OF GASEOUS GRAB SAMPLES FROM COMBUSTION SOURCES FOR NITROUS OXIDE MEASUREMENT

    EPA Science Inventory

    The document is a recommended operating procedure, prepare or use in research activities conducted by EPA's Air and Energy Engineering Research Laboratory (AEERL). The procedure applies to the collection of gaseous grab samples from fossil fuel combustion sources for subsequent a...

  13. Monitoring airborne molecular contamination: a quantitative and qualitative comparison of real-time and grab-sampling techniques

    NASA Astrophysics Data System (ADS)

    Shupp, Aaron M.; Rodier, Dan; Rowley, Steven

    2007-03-01

    Monitoring and controlling Airborne Molecular Contamination (AMC) has become essential in deep ultraviolet (DUV) photolithography for both optimizing yields and protecting tool optics. A variety of technologies have been employed for both real-time and grab-sample monitoring. Real-time monitoring has the advantage of quickly identifying "spikes" and upset conditions, while 2 - 24 hour plus grab sampling allows for extremely low detection limits by concentrating the mass of the target contaminant over a period of time. Employing a combination of both monitoring techniques affords the highest degree of control, lowest detection limits, and the most detailed data possible in terms of speciation. As happens with many technologies, there can be concern regarding the accuracy and agreement between real-time and grab-sample methods. This study utilizes side by side comparisons of two different real-time monitors operating in parallel with both liquid impingers and dry sorbent tubes to measure NIST traceable gas standards as well as real world samples. By measuring in parallel, a truly valid comparison is made between methods while verifying the results against a certified standard. The final outcome for this investigation is that a dry sorbent tube grab-sample technique produced results that agreed in terms of accuracy with NIST traceable standards as well as the two real-time techniques Ion Mobility Spectrometry (IMS) and Pulsed Fluorescence Detection (PFD) while a traditional liquid impinger technique showed discrepancies.

  14. RECOMMENDED OPERATING PROCEDURE NO. 56: COLLECTION OF GASEOUS GRAB SAMPLES FROM COMBUSTION SOURCES FOR NITROUS OXIDE MEASUREMENT

    EPA Science Inventory

    The document is a recommended operating procedure, prepare or use in research activities conducted by EPA's Air and Energy Engineering Research Laboratory (AEERL). The procedure applies to the collection of gaseous grab samples from fossil fuel combustion sources for subsequent a...

  15. Tank 241-U-103, grab samples 3U-99-1, 3u-99-2 and 3U-99-3

    SciTech Connect

    STEEN, F.H.

    1999-08-25

    This document is the final report for tank 241-U-103 grab samples. Three grab samples were collected from riser 13 on March 12, 1999 and received by the 222-S laboratory on March 15, 1999. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan for Fiscal year 1999 (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO). The analytical results are presented in the data summary report. None of the subsamples submitted for differential scanning calorimetry (DSC), total organic carbon (TOC) and plutonium 239 (Pu239) analyses exceeded the notification limits as stated in TSAP.

  16. Tank 241-AN-101, grab samples, 1AN-98-1, 1AN-98-2 and 1AN-98-3 analytical results for the final report

    SciTech Connect

    FULLER, R.K.

    1999-02-24

    This document is the final report for tank 241-AN-101 grab samples. Three grab samples 1AN-98-1, 1AN-98-2 and 1AN-98-3 were taken from riser 16 of tank 241-AN-101 on April 8, 1998 and received by the 222-S Laboratory on April 9, 1998. Analyses were performed in accordance with the ''Compatability Grab Sampling and Analysis Plan'' (TSAP) and the ''Data Quality Objectives for Tank Farms Waste Compatability Program'' (DQO). The analytical results are presented in the data summary report. No notification limits were exceeded.

  17. Tank 241-ER-311, grab samples, ER311-98-1, ER311-98-2, ER311-98-3 analytical results for the final report

    SciTech Connect

    FULLER, R.K.

    1999-02-24

    This document is the final report for catch tank 241-ER-311 grab samples. Three grab samples ER311-98-1, ER311-98-2 and ER311-98-3 were taken from East riser of tank 241-ER-311 on August 4, 1998 and received by the 222-S Laboratory on August 4, 1998. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasaki, 1998)and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Mulkey and Miller, 1997). The analytical results are presented in the data summary report (Table 1). No notification limits were exceeded.

  18. Tank 241-S-304, Grab samples, 304S-98-1, 304S-98-2 and 304S-98-3 analytical results for the final report

    SciTech Connect

    STEEN, F.H.

    1999-02-23

    This document is the final report for tank 241-S-304 grab samples. Four grab samples were collected from riser 4 on July 30, 1998. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasaki, 1998) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO). The analytical results are presented in the data summary report (Table 1). None of the subsamples submitted for differential scanning calorimetry (DSC), total organic carbon (TOC) and plutonium 239 (Pu239) analyses exceeded the notification limits as stated in TSAP (Saaaki, 1998).

  19. Comparison of Grab, Air, and Surface Results for Radiation Site Characterization

    NASA Astrophysics Data System (ADS)

    Glassford, Eric Keith

    2011-12-01

    The use of proper sampling methods and sample types for evaluating sites believed to be contaminated with radioactive materials is necessary to avoid misrepresenting conditions at the site. This study was designed to investigate if the site characterization, based upon uranium contamination measured in different types of samples, is dependent upon the mass of the sample collected. A bulk sample of potentially contaminated interior dirt was collected from an abandoned metal processing mill that rolled uranium between 1948 and 1956. The original mill dates from 1910 and has a dirt floor. The bulk sample was a mixture of dirt, black and yellow particles of metal dust, and small fragments of natural debris. Small mass (approximately 0.75 grams (g)) and large mass (approximately 70g) grab samples were prepared from the bulk sample material to simulate collection of a "grab" type sample. Air sampling was performed by re-suspending a portion of the bulk sample material using a vibration table to simulate airborne contamination that might be present during site remediation. Additionally, samples of removable contaminated surface dust were collected on 47 mm diameter filter paper by wiping the surfaces of the exposure chamber used to resuspend the bulk material. Certified reference materials, one containing a precisely known quantity of U 3O8 and one containing a known quantity of natural uranium, were utilized to calibrate the gamma spectrometry measurement system. Non-destructive gamma spectrometry measurements were used to determine the content of uranium-235 (235U) at 185 keV and 143 keV, thorium-234 (234Th) at 63 keV, and protactinium-234m (234mPa) at 1001 keV in each sample. Measurement of natural uranium in small, 1 g samples is usually accomplished by radiochemical analysis in order to measure alpha particles emitted by 238U, 235U, and 234U. However, uranium in larger bulk samples can also be measured non-destructively using gamma spectrometry to detect the low

  20. iGrab: hand orthosis powered by twisted and coiled polymer muscles

    NASA Astrophysics Data System (ADS)

    Saharan, Lokesh; de Andrade, Monica Jung; Saleem, Wahaj; Baughman, Ray H.; Tadesse, Yonas

    2017-10-01

    Several works have been reported in powered hand orthosis in the last ten years for assistive or rehabilitative purposes. However, most of these approaches uses conventional actuators such as servo motors to power orthosis. In this work, we demonstrate the recently reported twisted and coiled polymeric (TCP) muscles to drive a compact, light, inexpensive and wearable upper extremity device, iGrab. A 3D printed orthotic hand module was designed, developed and tested for the performance. The device has six 2-ply muscles of diameter 1.35 mm with a length of 380 mm. We used a single 2-ply muscle for each finger and two 2-ply muscles for the thumb. Pulsed actuation of the muscles at 1.8 A current for 25 s with 7% duty cycle under natural cooling showed full flexion of the fingers within 2 s. Modeling and simulation were performed on the device using standard Euler–Lagrangian equations. Our artificial muscles powered hand orthosis demonstrated the capability of pinching and picking objects of different shapes, weights, and sizes.

  1. Land grabbing: a preliminary quantification of economic impacts on rural livelihoods.

    PubMed

    Davis, Kyle F; D'Odorico, Paolo; Rulli, Maria Cristina

    2014-01-01

    Global demands on agricultural land are increasing due to population growth, dietary changes and the use of biofuels. Their effect on food security is to reduce humans' ability to cope with the uncertainties of global climate change. In light of the 2008 food crisis, to secure reliable future access to sufficient agricultural land, many nations and corporations have begun purchasing large tracts of land in the global South, a phenomenon deemed "land grabbing" by popular media. Because land investors frequently export crops without providing adequate employment, this represents an effective income loss for local communities. We study 28 countries targeted by large-scale land acquisitions [comprising 87 % of reported cases and 27 million hectares (ha)] and estimate the effects of such investments on local communities' incomes. We find that this phenomenon can potentially affect the incomes of ~12 million people globally with implications for food security, poverty levels and urbanization. While it is important to note that our study incorporates a number of assumptions and limitations, it provides a much needed initial quantification of the economic impacts of large-scale land acquisitions on rural livelihoods.

  2. Tank 241-AP-103 08/1999 Compatibility Grab Samples and Analytical Results for the Final Report

    SciTech Connect

    BELL, K.E.

    1999-12-09

    This document is the format IV, final report for the tank 241-AP-103 (AP-103) grab samples taken in August 1999 to address waste compatibility concerns. Chemical, radiochemical, and physical analyses on the tank AP-103 samples were performed as directed in ''Compatibility Grub Sampling and Analysis Plan for Fiscal Year 1999'' (Sasaki 1999a). Any deviations from the instructions provided in the tank sampling and analysis plan (TSAP) were discussed in this narrative. No notification limits were exceeded.

  3. Seasonal and Temporal Variation in Release of Antibiotics in Hospital Wastewater: Estimation Using Continuous and Grab Sampling

    PubMed Central

    Diwan, Vishal; Stålsby Lundborg, Cecilia; Tamhankar, Ashok J.

    2013-01-01

    The presence of antibiotics in the environment and their subsequent impact on resistance development has raised concerns globally. Hospitals are a major source of antibiotics released into the environment. To reduce these residues, research to improve knowledge of the dynamics of antibiotic release from hospitals is essential. Therefore, we undertook a study to estimate seasonal and temporal variation in antibiotic release from two hospitals in India over a period of two years. For this, 6 sampling sessions of 24 hours each were conducted in the three prominent seasons of India, at all wastewater outlets of the two hospitals, using continuous and grab sampling methods. An in-house wastewater sampler was designed for continuous sampling. Eight antibiotics from four major antibiotic groups were selected for the study. To understand the temporal pattern of antibiotic release, each of the 24-hour sessions were divided in three sub-sampling sessions of 8 hours each. Solid phase extraction followed by liquid chromatography/tandem mass spectrometry (LC-MS/MS) was used to determine the antibiotic residues. Six of the eight antibiotics studied were detected in the wastewater samples. Both continuous and grab sampling methods indicated that the highest quantities of fluoroquinolones were released in winter followed by the rainy season and the summer. No temporal pattern in antibiotic release was detected. In general, in a common timeframe, continuous sampling showed less concentration of antibiotics in wastewater as compared to grab sampling. It is suggested that continuous sampling should be the method of choice as grab sampling gives erroneous results, it being indicative of the quantities of antibiotics present in wastewater only at the time of sampling. Based on our studies, calculations indicate that from hospitals in India, an estimated 89, 1 and 25 ng/L/day of fluroquinolones, metronidazole and sulfamethoxazole respectively, might be getting released into the

  4. Waste compatibility and final report for Tank 241-A-101, Grab Samples 1A-96-1, 1A-96-2, and 1A-96-3

    SciTech Connect

    Steen, F.H., Westinghouse Hanford

    1996-07-25

    This document is the final report deliverable for tank 241-A- 101 grab samples. Three grab samples (IA-96-1, IA-96-2 and IA-96-3) were taken from riser 4 of tank 241-A-101. Samples were collected on April 3, 1996 and received by the 222-S Laboratory on April 4, 1996. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO). The samples were subsampled and analyzed in accordance with the TSAP. Two of the three grab samples contained a significant amount of solids and special analyses were requested. None of the samples exceeded notification limits. No similarities in sample appearance were noted; this could be an explanation for the varying analytical results. Quality control issues are discussed in each analytical subheading. The raw data for all analyses are included in this report.

  5. Controls on Bacterial Concentrations in Sediment Grab Samples from the Hudson River Estuary

    NASA Astrophysics Data System (ADS)

    Batta, J.; Mailloux, B. J.; Nitsche, F. O.; Kenna, T. C.; Ferguson, A. S.; Cheung, J.; Layton, A.

    2010-12-01

    High levels of fecal bacteria resulting from sewage-related pollution are often present in the Hudson River Estuary. Die-off of the fecal bacteria in surface waters is relatively rapid but the fecal bacteria can also attach to particles and settle. It is known that fecal bacteria are present in the shallow sediments but controls on their distribution have not been closely examined. The goal of this work is to examine the relationship between the concentration of fecal indicator bacteria and sediment properties including estimates of sediment age. Forty sediment surface grabs were obtained from the Hudson River Estuary. Twenty samples were collected from near the George Washington Bridge (GWB) and twenty samples from a 15 mile transect near Hudson New York. Concentrations of fecal indicator bacteria were determined by the cultured based Enterolert and Colilert tests (Idexx Laboratories) and molecular based techniques for E. coli and Bacteroides. Sediments were analyzed for total metals, total organic carbon, grain size, and gamma emitting radionuclides including Beryllium-7, Lead-210, and Cesium-137. Enterococcus was present in the samples with a geometric mean of 88 cells/g and a range of 4 to 817 cells /g. Culturable E. Coli was present in the samples with a geometric mean of 168 cells /g and a range of 5 to 2247 cells /g. Enterococcus concentrations were significantly higher (p<0.05) in the northern transect. Molecular based concentrations were determined for the GWB samples and were significantly higher than culture based concentrations. Bacteroides was present in the samples with a geometric mean of 1.1x106 copies/g and a range of 3.9x104 to 4.7x106 copies /g. Molecular E. Coli was present in the samples with a geometric mean of 3.0x106 copies/g and a range of 8.7x104 to 8.9x107 copies /g. The results clearly show that a significant amount of fecal bacteria are present in the sediments. Simple linear correlations between bacterial concentrations and sediment

  6. Front- or rear-weighted track start or grab start: which is the best for female swimmers?

    PubMed

    Welcher, Robert L; Hinrichs, Richard N; George, Thomas R

    2008-01-01

    The aim of this study was to compare three competitive swimming starts (grab, rear-weighted track, and front-weighted track). The starts were compared in terms of time and instantaneous horizontal velocity, both at take-off from the block and at 5 m from the wall. Twenty US college female swimmers performed three trials of each of the three randomly ordered starts. Swimmers left the block significantly sooner using the front-weighted track start (0.80 s) than the other two starts (both 0.87 s; P < 0.001). In the rear-weighted track start, however, the athletes left the blocks with significantly higher horizontal velocity than in the grab or front-weighted track start (3.99 vs. 3.87 and 3.90 m/s, respectively; each P < 0.001). By 5 m, the front-weighted track start maintained its time advantage over the grab start (2.19 vs. 2.24s; P = 0.008) but not the rear-weighted track start (2.19 vs. 2.21 s; P = 0.336). However, the rear-weighted track start had a significant advantage over the front-weighted track start in terms of instantaneous horizontal velocity at 5 m (2.25 vs. 2.18 m/s; P = 0.009). Therefore, the rear-weighted track start had a better combination of time and velocity than the front-weighted track start. There was also a trend for the rear-weighted track start to have higher velocity at 5 m than the grab start, although this did not reach statistical significance (2.25 vs. 2.20 m/s; P = 0.042). Overall, these results favour the rear-weighted track start for female swimmers even though most of the athletes had little or no prior experience with it. Additional research is needed to determine whether males would respond similarly to females in these three different swimming starts.

  7. Analysis of commode grab bar usage for the monitoring of older adults in the smart home environment.

    PubMed

    Arcelus, Amaya; Holtzman, Megan; Goubran, Rafik; Sveistrup, Heidi; Guitard, Paulette; Knoefel, Frank

    2009-01-01

    The occurrence of falls inside the home is a common yet potentially hazardous issue for adults as they age. Even with the installation of physical aids such as grab bars, weight transfers on and off a toilet or bathtub can become increasingly difficult as a person's level of physical mobility and sense of balance deteriorate. Detecting this deterioration becomes an important goal in fall prevention within a smart home. This paper develops an unobtrusive method of analyzing the usage of toilet grab bars using pressure sensors embedded into the arm rests of a commode. Clinical parameters are successfully extracted automatically from a series of stand-to-sit (StSi) and sit-to-stand (SiSt) transfers performed by a trial group of young and older adults. A preliminary comparison of the parameters indicates differences between the two groups, and aligns well with published characteristics obtained using accelerometers worn on the body. The unobtrusive nature of this method provides a useful tool to be incorporated into a system of continuous monitoring of older adults within the smart home environment.

  8. Analysis of isotopic signals in the Danube River water at Tulln, Austria, based on daily grab samples in 2012.

    PubMed

    Wyhlidal, Stefan; Rank, Dieter; Schott, Katharina; Heiss, Gerhard; Goetz, Jason

    2014-01-01

    Results of stable isotope measurements (δ(2)H, δ(18)O) of daily grab samples, taken from the Danube River at Tulln (river km 1963) during 2012, show seasonal and short-term variations depending on the climatic/hydrological conditions and changes in the catchment area (temperature changes, heavy rains and snow melt processes). Isotope ratios in river water clearly reflect the isotopic composition of precipitation water in the catchment area since evaporation influences play a minor role. Average δ(2)H and δ(18)O values in 2012 are-78‰ and-11.0‰, respectively, deuterium excess averages 10‰. The entire variation amounts to 1.8‰ in δ(18)O and 15‰ in δ(2)H. Quick changes of the isotopic composition within a few days emphasise the necessity of daily sampling for the investigation of hydrological events, while monthly grab sampling seems sufficient for the investigation of long-term hydro-climatic trends. (3)H results show peaks (half-width 1-2 days, up to about 150 TU) exceeding the regional environmental level of about 9 TU, probably due to releases from nuclear power plants.

  9. Tank 241-AP-106, Grab samples, 6AP-98-1, 6AP-98-2 and 6AP-98-3 Analytical results for the final report

    SciTech Connect

    FULLER, R.K.

    1999-02-23

    This document is the final report for tank 241-AP-106 grab samples. Three grab samples 6AP-98-1, 6AP-98-2 and 6AP-98-3 were taken from riser 1 of tank 241-AP-106 on May 28, 1998 and received by the 222-S Laboratory on May 28, 1998. Analyses were performed in accordance with the ''Compatability Grab Sampling and Analysis Plan'' (TSAP) (Sasaki, 1998) and the ''Data Quality Objectives for Tank Farms Waste Compatability Program (DQO). The analytical results are presented in the data summary report. No notification limits were exceeded. The request for sample analysis received for AP-106 indicated that the samples were polychlorinated biphenyl (PCB) suspects. The results of this analysis indicated that no PCBs were present at the Toxic Substance Control Act (TSCA) regulated limit of 50 ppm. The results and raw data for the PCB analysis are included in this document.

  10. Tank 241-AP-107, grab samples, 7AP-99-1, 7AP-99-3 and 7AP-99-4 analytical results for the final report

    SciTech Connect

    BELL, K.E.

    1999-08-12

    This document is the format IV, final report for the tank 241-AP-107 (AP-107) grab samples taken in May 1999 to address waste compatibility concerns. Chemical, radiochemical, and physical analyses on the tank AP-107 samples were performed as directed in Compatibility Grab Sampling and Analysis Plan for Fiscal year 1999. Any deviations from the instructions provided in the tank sampling and analysis plan (TSAP) were discussed in this narrative. Interim data were provided earlier to River Protection Project (RPP) personnel, however, the data presented here represent the official results. No notification limits were exceeded.

  11. Tank 241-S-111 08/1999 Compatibility Grab Samples and Analytical Results for the Final Report [SEC 1 and SEC 2

    SciTech Connect

    STEEN, F.H.

    1999-12-01

    This document is the format IV, final report for the tank 241-S-111 (S-111) grab samples taken in August 1999 to address waste compatibility concerns. Chemical, radiochemical, and physical analyses on the tank S-111 samples were performed as directed in Compatibility Grab Sampling and Analysis Plan for Fiscal Year 1999 (Sasaki 1999a,b). Any deviations from the instructions provided in the tank sampling and analysis plan (TSAP) were discussed in this narrative. The notification limit for {sup 137}Cs was exceeded on two samples. Results are discussed in Section 5.3.2. No other notification limits were exceeded.

  12. Tank 241-AP-106, grab samples, 6AP-96-1 through 6AP-96-3 analytical results for the final report

    SciTech Connect

    Esch, R.A., Westinghouse Hanford

    1996-12-11

    This document is the final report for tank 241-AP-106 grab samples. This document presents the analytical results for three samples (6AP-96-1, 6AP-96-2 and 6AP-96-3) taken from riser 1 @ 150{degrees} of tank 241-AP-1 06 on September 12, 1996. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasaki, 1996) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Fowler, 1995).

  13. Concentration comparison of selected constituents between groundwater samples collected within the Missouri River alluvial aquifer using purge and pump and grab-sampling methods, near the city of Independence, Missouri, 2013

    USGS Publications Warehouse

    Krempa, Heather M.

    2015-10-29

    Relative percent differences between methods were greater than 10 percent for most analyzed trace elements. Barium, cobalt, manganese, and boron had concentrations that were significantly different between sampling methods. Barium, molybdenum, boron, and uranium method concentrations indicate a close association between pump and grab samples based on bivariate plots and simple linear regressions. Grab sample concentrations were generally larger than pump concentrations for these elements and may be because of using a larger pore sized filter for grab samples. Analysis of zinc blank samples suggests zinc contamination in filtered grab samples. Variations of analyzed trace elements between pump and grab samples could reduce the ability to monitor temporal changes and potential groundwater contamination threats. The degree of precision necessary for monitoring potential groundwater threats and application objectives need to be considered when determining acceptable variation amounts.

  14. GrabBlur - a framework to facilitate the secure exchange of whole-exome and -genome SNV data using VCF files

    PubMed Central

    2014-01-01

    Background Next Generation Sequencing (NGS) of whole exomes or genomes is increasingly being used in human genetic research and diagnostics. Sharing NGS data with third parties can help physicians and researchers to identify causative or predisposing mutations for a specific sample of interest more efficiently. In many cases, however, the exchange of such data may collide with data privacy regulations. GrabBlur is a newly developed tool to aggregate and share NGS-derived single nucleotide variant (SNV) data in a public database, keeping individual samples unidentifiable. In contrast to other currently existing SNV databases, GrabBlur includes phenotypic information and contact details of the submitter of a given database entry. By means of GrabBlur human geneticists can securely and easily share SNV data from resequencing projects. GrabBlur can ease the interpretation of SNV data by offering basic annotations, genotype frequencies and in particular phenotypic information - given that this information was shared - for the SNV of interest. Tool description GrabBlur facilitates the combination of phenotypic and NGS data (VCF files) via a local interface or command line operations. Data submissions may include HPO (Human Phenotype Ontology) terms, other trait descriptions, NGS technology information and the identity of the submitter. Most of this information is optional and its provision at the discretion of the submitter. Upon initial intake, GrabBlur merges and aggregates all sample-specific data. If a certain SNV is rare, the sample-specific information is replaced with the submitter identity. Generally, all data in GrabBlur are highly aggregated so that they can be shared with others while ensuring maximum privacy. Thus, it is impossible to reconstruct complete exomes or genomes from the database or to re-identify single individuals. After the individual information has been sufficiently "blurred", the data can be uploaded into a publicly accessible domain where

  15. Plan-view photos, benthic grabs, and sediment-profile images: Using complementary techniques to assess response to seafloor disturbance.

    PubMed

    Wilson, Stephanie J K; Fredette, Thomas J; Germano, Joseph D; Blake, James A; Neubert, Pamela L A; Carey, Drew A

    2009-01-01

    A monitoring survey was conducted in July 2005 at the Rhode Island Sound Disposal Site (RISDS) as part of the Disposal Area Monitoring System (DAMOS) program. The survey included the collection of sediment-profile and plan-view images, and benthic biology grabs. Each of these techniques provides a different, yet complementary perspective on benthic community conditions. These complementary techniques aided in the assessment of the benthic recovery process within RISDS following the placement of dredged material from the Providence River and Harbor Maintenance Dredging Project (PRHMDP). Based on observed patterns of physical, chemical, and biological responses of seafloor environments to dredged material disposal activity it was expected that the benthic community within RISDS would be in an intermediate phase of recolonization (Stage II). Results of the 2005 RISDS survey indicated that in the six months since disposal activities at RISDS had concluded, the biological community at RISDS was recovering relatively rapidly and Stages II and III infauna were present throughout the region.

  16. A Framework for Applying Point Clouds Grabbed by Multi-Beam LIDAR in Perceiving the Driving Environment

    PubMed Central

    Liu, Jian; Liang, Huawei; Wang, Zhiling; Chen, Xiangcheng

    2015-01-01

    The quick and accurate understanding of the ambient environment, which is composed of road curbs, vehicles, pedestrians, etc., is critical for developing intelligent vehicles. The road elements included in this work are road curbs and dynamic road obstacles that directly affect the drivable area. A framework for the online modeling of the driving environment using a multi-beam LIDAR, i.e., a Velodyne HDL-64E LIDAR, which describes the 3D environment in the form of a point cloud, is reported in this article. First, ground segmentation is performed via multi-feature extraction of the raw data grabbed by the Velodyne LIDAR to satisfy the requirement of online environment modeling. Curbs and dynamic road obstacles are detected and tracked in different manners. Curves are fitted for curb points, and points are clustered into bundles whose form and kinematics parameters are calculated. The Kalman filter is used to track dynamic obstacles, whereas the snake model is employed for curbs. Results indicate that the proposed framework is robust under various environments and satisfies the requirements for online processing. PMID:26404290

  17. Property grabbing and will writing in Lusaka, Zambia: an examination of wills of HIV-infected cohabiting couples.

    PubMed

    Mendenhall, E; Muzizi, L; Stephenson, R; Chomba, E; Ahmed, Y; Haworth, A; Allen, S

    2007-03-01

    High rates of HIV and poverty place women in a precarious economic situation in Lusaka, Zambia. Mortality from HIV infection is high, leaving many households single headed and creating almost a half a million orphans. One of the most prevalent forms of gender violence that creates poverty in women is when the male's family claims the property of the deceased from the widow and the children. The Zambia-Emory HIV Research Project collected 184 wills from individuals in monogamous unions where one or both of the individuals were HIV-positive. Despite the fact that many wills specifically stated that their extended family was not allowed to tamper with their possessions in the event of death, property grabbing proved to be a prevalent and difficult issue in Lusaka. In order to improve the lives of widowed women in Lusaka, the government and other civic and non-governmental organisations must inform women of their rights to own and protect their land and other assets in the event of their husbands' death, an issue of increasing importance in the area of HIV/AIDS.

  18. A Framework for Applying Point Clouds Grabbed by Multi-Beam LIDAR in Perceiving the Driving Environment.

    PubMed

    Liu, Jian; Liang, Huawei; Wang, Zhiling; Chen, Xiangcheng

    2015-08-31

    The quick and accurate understanding of the ambient environment, which is composed of road curbs, vehicles, pedestrians, etc., is critical for developing intelligent vehicles. The road elements included in this work are road curbs and dynamic road obstacles that directly affect the drivable area. A framework for the online modeling of the driving environment using a multi-beam LIDAR, i.e., a Velodyne HDL-64E LIDAR, which describes the 3D environment in the form of a point cloud, is reported in this article. First, ground segmentation is performed via multi-feature extraction of the raw data grabbed by the Velodyne LIDAR to satisfy the requirement of online environment modeling. Curbs and dynamic road obstacles are detected and tracked in different manners. Curves are fitted for curb points, and points are clustered into bundles whose form and kinematics parameters are calculated. The Kalman filter is used to track dynamic obstacles, whereas the snake model is employed for curbs. Results indicate that the proposed framework is robust under various environments and satisfies the requirements for online processing.

  19. A Low-Cost, Grab-and-Go Breakfast Intervention for Rural High School Students: Changes in School Breakfast Program Participation Among At-Risk Students in Minnesota.

    PubMed

    Larson, Nicole; Wang, Qi; Grannon, Katherine; Wei, Susan; Nanney, Marilyn S; Caspi, Caitlin

    2017-09-23

    Evaluate the impact of a grab-and-go component embedded within a larger intervention designed to promote School Breakfast Program (SBP) participation. Secondary data analysis. Rural Minnesota high schools. Eight schools were enrolled in the grab-and-go only intervention component. An at-risk sample of students (n = 364) who reported eating breakfast ≤3 d/wk at baseline was enrolled at these schools. Grab-and-go style breakfast carts and policies were introduced to allow all students to eat outside the cafeteria. Administrative records were used to determine percent SBP participation (proportion of non-absent days on which fully reimbursable meals were received) for each student and school-level averages. Linear mixed models. School-level increases in SBP participation from baseline to the school year of intervention implementation were observed for schools enrolled in the grab-and-go only component (13.0% to 22.6%). Student-level increases in SBP participation were observed among the at-risk sample (7.6% to 21.9%) and among subgroups defined by free- or reduced-price meal eligibility and ethnic or racial background. Participation in SBP increased among students eligible for free or reduced-price meals from 13.9% to 30.7% and among ineligible students from 4.3% to 17.2%. Increasing access to the SBP and social support for eating breakfast are effective promotion strategies. Copyright © 2017 Society for Nutrition Education and Behavior. Published by Elsevier Inc. All rights reserved.

  20. Spatial and temporal distribution of Au and other trace elements in an estuary using the diffusive gradients in thin films technique and grab sampling

    NASA Astrophysics Data System (ADS)

    Lucas, Andrew R.; Salmon, S. Ursula; Rate, Andrew W.; Larsen, Sarah; Kilminster, Kieryn

    2015-12-01

    This study reports the first surface water evaluation of the temporal and spatial variability of Au in an estuary, using recently developed modifications to the diffusive gradients in thin films (DGT) and grab sampling techniques. At the two study sites in the Swan River estuary that were more marine in character, the DGT-measured concentrations of Au (26.3 and 31.3 ng/L) were within the range of total concentrations measured on individual days (13.2-30.6 ng/L and 11.2-37.2 ng/L, respectively). In contrast, at an upstream site, Au concentrations measured by DGT were significantly lower than totals (3.9 ng/L for DGT, compared with 13.2-28.8 ng/L for grab sampling), likely due to either size exclusion of colloids (>70 nm) by DGT or formation of a dissolved, non-DGT-labile Au species (<0.45 μm). DGT-measured concentrations of other metals (Cu, Co, Cr, U, V, Mo and As) were also lower than total concentrations, although in contrast to DGT-measured Au, this phenomenon occurred at all sites. Furthermore, daily grab samples for Au, taken over the 10-day deployment (which included a rain event), showed that Au concentrations could spike substantially (from 15.1 ng/L to 37.2 ng/L) over intervals as short as one day. The combination of simultaneous deployment of different DGT devices and grab sampling represents a new development in efforts to understand the transport and fate of Au together with other elements in dynamic environments such as estuaries.

  1. Final report for tank 241-AP-108, grab samples 8AP-96-1, 8AP-96-2 and 8AP-96-FB

    SciTech Connect

    Esch, R.A.

    1996-04-19

    This document is the final report deliverable for the tank 241-AP-108 grab samples. The samples were subsampled and analyzed in accordance with the TSAP. Included in this report are the results for the Waste Compatibility analyses, with the exception of DSC and thermogravimetric analysis (TGA) results which were presented in the 45 Day report (Part 2 of this document). The raw data for all analyses, with the exception of DSC and TGA, are also included in this report.

  2. Tank 241-S-302 grab samples 302S-97-1, 302S-97-2 and 302S-97-3 analytical results for the final report

    SciTech Connect

    Diaz, L.A.

    1998-03-20

    This document is the final report for tank 241-S-302 grab samples. Three grab samples were collected on January 30, 1998. Analyses were performed on samples 302-S-97-1, 302-S-97-2 and 302-S-97-3 in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasaki, 1997) and the Data Quality Objectives (DQO) for Tank Farms Waste Compatibility Program (Mulkey, 1997). The analytical results are presented in Table 1. No notification limits were exceeded. The sample breakdown diagrams (Attachment 1) are provided as a cross-reference for relating the tank farm customer identification numbers with the 222-S Laboratory sample numbers and the portion of sample analyzed. Table 2 provides the appearance information. Visual observation indicated that the sample was a clear, light-yellow liquid with less than one percent solids. No organic layer was observed. The 125 mL sample was submitted to the laboratory for analysis of inorganic analytes and radionuclides.

  3. Tank 241-AP-107, grab samples 7AP-97-1, 7AP-97-2 and 7AP-97-3 analytical results for the final report

    SciTech Connect

    Steen, F.H.

    1997-12-22

    This document is the final report for tank 241-AP-107 grab samples. Three grab samples were collected from riser 1 on September 11, 1997. Analyses were performed on samples 7AP-97-1, 7AP-97-2 and 7AP-97-3 in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasaki, 1997) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Rev. 1: Fowler, 1995; Rev. 2: Mulkey and Nuier, 1997). The analytical results are presented in the data summary report (Table 1). A notification was made to East Tank Farms Operations concerning low hydroxide in the tank and a hydroxide (caustic) demand analysis was requested. The request for sample analysis (RSA) (Attachment 2) received for AP-107 indicated that the samples were polychlorinated biphenyl (PCB) suspects. Therefore, prior to performing the requested analyses, aliquots were made to perform PCB analysis in accordance with the 222-S Laboratory administrative procedure, LAP-101-100. The results of this analysis indicated that no PCBs were present at 50 ppm and analysis proceeded as non-PCB samples. The results and raw data for the PCB analysis will be included in a revision to this document. The sample breakdown diagrams (Attachment 1) are provided as a cross-reference for relating the tank farm customer identification numbers with the 222-S Laboratory sample numbers and the portion of sample analyzed.

  4. Characterizing mineral dusts and other aerosols from the Middle East--Part 2: grab samples and re-suspensions.

    PubMed

    Engelbrecht, Johann P; McDonald, Eric V; Gillies, John A; Jayanty, R K M Jay; Casuccio, Gary; Gertler, Alan W

    2009-02-01

    The purpose of the Enhanced Particulate Matter Surveillance Program was to provide scientifically founded information on the chemical and physical properties of dust collected during a period of approximately 1 year in Djibouti, Afghanistan (Bagram, Khowst), Qatar, United Arab Emirates, Iraq (Balad, Baghdad, Tallil, Tikrit, Taji, Al Asad), and Kuwait (northern, central, coastal, and southern regions). To fully understand mineral dusts, their chemical and physical properties, as well as mineralogical inter-relationships, were accurately established. In addition to the ambient samples, bulk soil samples were collected at each of the 15 sites. In each case, approximately 1 kg of soil from the top 10 mm at a previously undisturbed area near the aerosol sampling site was collected. The samples were air-dried and sample splits taken for soil analysis. Further sample splits were sieved to separate the < 38 micro m particle fractions for mineralogical analysis. Examples of major-element and trace-element chemistry, mineralogy, and other physical properties of the 15 grab samples are presented. The purpose of the trace-element analysis was to measure levels of potentially harmful metals while the major-element and ion-chemistry analyses provided an estimate of mineral components. X-ray diffractometry provided a measure of the mineral content of the dust. Scanning electron microscopy with energy dispersive spectroscopy was used to analyze chemical composition of small individual particles. From similarities in the chemistry and mineralogy of re-suspended and ambient sample sets, it is evident that portions of the ambient dust are from local soils.

  5. FINAL REPORT FOR THE INITIAL SOLID PHASE CHARACTERIZATION OF THE 2011 GRAB SAMPLES AND COMPOSITE FOR THE C-109 HARD HEEL STUDY

    SciTech Connect

    PAGE JS; COOKE G; PESTOVICH JA

    2011-12-01

    On May 3, 2011, solid phase characterization subsamples were taken from six of the eight grab samples that had been collected from tank 241-C-109 in April, 2011 and delivered to the 222-S Laboratory. These subsamples were characterized in order to guide the creation of the composite for the C-109 hard heel study. Visual observation showed that there was a large variability in the physical characteristics of the eight individual grab samples. Several of the grab samples consisted of 'stone-like' cobbles (several > 25 mm in diameter) while the other grab samples were of a finer granular composition referred to as 'bulk material'. Half of the six subsamples taken for this initial SPC were of crushed cobbles and half were of the bulk material. Scanning electron microscopy was performed on all six subsamples, and X-ray diffraction was performed on all three of the 'bulk material' samples and one of the crushed cobble samples. The crushed cobbles were found to be composed primarily of gibbsite (Al[OHh]{sub 3}). Analysis by X-ray diffraction indicated gibbsite to be the only crystalline phase detected, and scanning electron microscopy showed the crushed cobbles to consist primarily of aggregates of euhedral to subhedral gibbsite crystals that were 20 to 100 {mu}m in size. The aggregates, having a moderate amount of pore space, were cemented primarily by recrystallized gibbsite making them resistant to crushing. The bulk material consisted of coarse to fine-grained pebble-sized (2 to 20 mm) particles. The X-ray diffraction analysis showed them to be a mixture of natrophosphate (Na{sub 7}[PO{sub 4}]{sub 2}F{center_dot}19[H{sub 2}O]) and gibbsite crystals in varying amounts in each of the three subsamples (i.e., some grab samples were primarily natrophosphate while others were mixed with gibbsite). The scanning electron microscopy analysis of the bulk material showed the crystals to be euhedral to anhedral (rounded) in shape. Trace phases, too minor to be detected by XRD

  6. A universal approach for automatic organ segmentations on 3D CT images based on organ localization and 3D GrabCut

    NASA Astrophysics Data System (ADS)

    Zhou, Xiangrong; Ito, Takaaki; Zhou, Xinxin; Chen, Huayue; Hara, Takeshi; Yokoyama, Ryujiro; Kanematsu, Masayuki; Hoshi, Hiroaki; Fujita, Hiroshi

    2014-03-01

    This paper describes a universal approach to automatic segmentation of different internal organ and tissue regions in three-dimensional (3D) computerized tomography (CT) scans. The proposed approach combines object localization, a probabilistic atlas, and 3D GrabCut techniques to achieve automatic and quick segmentation. The proposed method first detects a tight 3D bounding box that contains the target organ region in CT images and then estimates the prior of each pixel inside the bounding box belonging to the organ region or background based on a dynamically generated probabilistic atlas. Finally, the target organ region is separated from the background by using an improved 3D GrabCut algorithm. A machine-learning method is used to train a detector to localize the 3D bounding box of the target organ using template matching on a selected feature space. A content-based image retrieval method is used for online generation of a patient-specific probabilistic atlas for the target organ based on a database. A 3D GrabCut algorithm is used for final organ segmentation by iteratively estimating the CT number distributions of the target organ and backgrounds using a graph-cuts algorithm. We applied this approach to localize and segment twelve major organ and tissue regions independently based on a database that includes 1300 torso CT scans. In our experiments, we randomly selected numerous CT scans and manually input nine principal types of inner organ regions for performance evaluation. Preliminary results showed the feasibility and efficiency of the proposed approach for addressing automatic organ segmentation issues on CT images.

  7. The Administrative Power Grab

    ERIC Educational Resources Information Center

    Sorenson, Richard D.

    2007-01-01

    Administrative power for some school teachers can be an aphrodisiac that can be applied negatively, especially when a leader has devastating instinct for the weaknesses of others. A leader's intellect and heart closes shop and ceases to function when drunk on power. In this article, the author describes how the use of administrative power can be…

  8. The Administrative Power Grab

    ERIC Educational Resources Information Center

    Sorenson, Richard D.

    2007-01-01

    Administrative power for some school teachers can be an aphrodisiac that can be applied negatively, especially when a leader has devastating instinct for the weaknesses of others. A leader's intellect and heart closes shop and ceases to function when drunk on power. In this article, the author describes how the use of administrative power can be…

  9. A Diversity Grab Bag.

    ERIC Educational Resources Information Center

    Moore, Thomas

    1999-01-01

    Suggests 15 strategies for introducing the concept of diversity to children including: (1) promoting conversation; (2) making the familiar different; (3) exploring music; (4) learning about celebrations; (5) showing objects; (6) taking field trips; (7) introducing foods; (8) encouraging empathy; (9) collaborating with different people; and (10)…

  10. Antarctica: up for grabs

    SciTech Connect

    Shapley, D.

    1982-11-01

    Antarctica is viewed as a special area, requiring meticulous diplomacy to develop international agreements for exploiting its resources. Little exploration has been accomplished, but oil, gas, and marine krill resources are protected by a 14-nation treaty dating from 1961. The treaty fixed national claims on specific territories and launched scientific activities that reflect national interests. Studies of meteorology, climatology, oceanography, upper-atmospheric physics, and territorial biology have revealed Antarctica's resource potential for krill, minerals, and even ice. 4 figures. (DCK)

  11. 3-D Grab!

    NASA Astrophysics Data System (ADS)

    Connors, M. G.; Schofield, I. S.

    2012-12-01

    Modern technologies in imaging greatly extend the potential to present visual information. With recently developed software tools, the perception of the third dimension can not only dramatically enhance presentation, but also allow spatial data to be better encoded. 3-D images can be taken for many subjects with only one camera, carefully moved to generate a stereo pair. Color anaglyph viewing now can be very effective using computer screens, and active filter technologies can enhance visual effects with ever-decreasing cost. We will present various novel results of 3-D imaging, including those from the auroral observations of the new twinned Athabasca University Geophysical Observatories.; Single camera stereo image for viewing with red/cyan glasses.

  12. Measurements of concentrations of chlorofluoromethanes (CFMs) carbon dioxide and carbon isotope ratio in stratospheric and tropospheric air by grab-sampling systems

    NASA Technical Reports Server (NTRS)

    Itoh, T.; Kubo, H.; Honda, H.; Tominaga, T.; Makide, Y.; Yakohata, A.; Sakai, H.

    1985-01-01

    Measurements of concentrations of chlorofluoromethanes (CFMs), carbon dioxide and carbon isotope ratio in stratospheric and tropospheric air by grab-sampling systems are reported. The balloon-borne grab-sampling system has been launched from Sanriku Balloon Center three times since 1981. It consists of: (1) six sampling cylinders, (2) eight motor driven values, (3) control and monitor circuits, and (4) pressurized housing. Particular consideration is paid to the problem of contamination. Strict requirements are placed on the choice of materials and components, construction methods, cleaning techniques, vacuum integrity, and sampling procedures. An aluminum pressurized housing and a 4-m long inlet line are employed to prevent the sampling air from contamination by outgassing of sampling and control devices. The sampling is performed during the descent of the system. Vertical profiles of mixing ratios of CF2Cl2, CFCl3 and CH4 are given. Mixing ratios of CF2Cl2 and CFCl3 in the stratosphere do not show the discernible effect of the increase of those in the ground level background, and decrease with altitude. Decreasing rate of CFCl3 is larger than that of CF2Cl2. CH4 mixing ratio, on the other hand, shows diffusive equilibrium, as the photodissociation cross section of CH4 is small and concentrations of OH radical and 0(sup I D) are low.

  13. Toilet Grab-Bar Preference and Center of Pressure Deviation During Toilet Transfers in Healthy Seniors, Seniors With Hip Replacements, and Seniors Having Suffered a Stroke.

    PubMed

    Kennedy, Matthew Joel; Arcelus, Amaya; Guitard, Paulette; Goubran, R A; Sveistrup, Heidi

    2015-01-01

    Multiple toilet grab-bar configurations are required by people with a diverse spectrum of disability. The study purpose was to determine toilet grab-bar preference of healthy seniors, seniors with a hip replacement, and seniors post-stroke, and to determine the effect of each configuration on centre of pressure (COP) displacement during toilet transfers. 14 healthy seniors, 7 ambulatory seniors with a hip replacement, and 8 ambulatory seniors post-stroke participated in the study. Toilet transfers were performed with no bars (NB), commode (C), two vertical bars (2VB), one vertical bar (1VB), a horizontal bar (H), two swing-away bars (S) and a diagonal bar (D). COP was measured using pressure sensitive floor mats. Participants rated the safety, ease of use, helpfulness, comfort and preference for instalment. 2VB was most preferred and had the smallest COP deviation. Least preferred was H and NB. C caused largest COP displacement but had favourable ratings. The preference and safety of the 2VB should be considered in the design of accessible toilets and in accessibility construction guidelines. However these results need to be verified in non-ambulatory populations. C is frequently prescribed, but generates large COP deviation, suggesting it may present an increased risk of falls.

  14. Measurements of concentrations of chlorofluoromethanes (CFMs) carbon dioxide and carbon isotope ratio in stratospheric and tropospheric air by grab-sampling systems

    NASA Technical Reports Server (NTRS)

    Itoh, T.; Kubo, H.; Honda, H.; Tominaga, T.; Makide, Y.; Yakohata, A.; Sakai, H.

    1985-01-01

    Measurements of concentrations of chlorofluoromethanes (CFMs), carbon dioxide and carbon isotope ratio in stratospheric and tropospheric air by grab-sampling systems are reported. The balloon-borne grab-sampling system has been launched from Sanriku Balloon Center three times since 1981. It consists of: (1) six sampling cylinders, (2) eight motor driven values, (3) control and monitor circuits, and (4) pressurized housing. Particular consideration is paid to the problem of contamination. Strict requirements are placed on the choice of materials and components, construction methods, cleaning techniques, vacuum integrity, and sampling procedures. An aluminum pressurized housing and a 4-m long inlet line are employed to prevent the sampling air from contamination by outgassing of sampling and control devices. The sampling is performed during the descent of the system. Vertical profiles of mixing ratios of CF2Cl2, CFCl3 and CH4 are given. Mixing ratios of CF2Cl2 and CFCl3 in the stratosphere do not show the discernible effect of the increase of those in the ground level background, and decrease with altitude. Decreasing rate of CFCl3 is larger than that of CF2Cl2. CH4 mixing ratio, on the other hand, shows diffusive equilibrium, as the photodissociation cross section of CH4 is small and concentrations of OH radical and 0(sup I D) are low.

  15. Tank 241U102 Grab Samples 2U-99-1 and 2U-99-2 and 2U-99-3 Analytical Results for the Final Report

    SciTech Connect

    STEEN, F.H.

    1999-08-03

    This document is the final report for tank 241-U-102 grab samples. Five grab samples were collected from riser 13 on May 26, 1999 and received by the 222-S laboratory on May 26 and May 27, 1999. Samples 2U-99-3 and 2U-99-4 were submitted to the Process Chemistry Laboratory for special studies. Samples 2U-99-1, 2U-99-2 and 2U-99-5 were submitted to the laboratory for analyses. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan for Fiscal year 1999 (TSAP) (Sasaki, 1999) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Fowler 1995, Mulkey and Miller 1998). The analytical results are presented in the data summary report. None of the subsamples submitted for differential scanning calorimetry (DSC), total organic carbon (TOC) and plutonium 239 (Pu239) analyses exceeded the notification limits as stated in TSAP.

  16. Tank 241S109 Grab Samples 9S-99-1 and 9S-99-2 and 9S-99-3 Analytical Results for the Final Report

    SciTech Connect

    STEEN, F.H.

    1999-11-23

    This document is the final report for tank 2414-109 grab samples. Three grab samples were collected from riser 13 on July 28, 1999 and received by the 222-S laboratory on July 28, 1999. Analyses were performed in accordance with the Compatibility Grab Sampling and Analysis Plan for Fiscal Year 1999 (TSAP) (Sasaki, 1999) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Fowler 1995, Mulkey and Miller 1998). The analytical results are presented in the data summary report (Table 1). None of the subsamples submitted for differential scanning calorimetry (DSC), total organic carbon (TOC) and plutonium 239 (Pu239) analyses exceeded the notification limits as stated in TSAP (Sasaki, 1999).

  17. Set point calculations for RAPID project

    SciTech Connect

    HICKMAN, G.L.

    1999-10-18

    The Respond and Pump in Days (RAPID) project was initiated to pump part of the contents of tank 241-SY-101 into tank 241-SY-102. This document establishes the basis for all set points and ranges used in the RAPID project.

  18. Set Point Calculations for RAPID Project [Removal of Hold for HNF-5087 and HNF-5088 and HNF-5089

    SciTech Connect

    HICKMAN, G.L.

    1999-09-02

    The Respond and Pump in Days (RAPID) project was initiated to pump part of the contents of tank 241-SY-101 into tanks 241-SY-102. This document establishes the basis for all set points and ranges used in the RAPID project.

  19. ELECTROCHEMICAL STUDIES OF CARBON STEEL CORROSION IN HANFORD DOUBLE SHELL TANK (DST) WASTE

    SciTech Connect

    DUNCAN, J.B.; WINDISCH, C.F.

    2006-10-13

    This paper reports on the electrochemical scans for the supernatant of Hanford double-shell tank (DST) 241-SY-102 and the electrochemical scans for the bottom saltcake layer for Hanford DST 241-AZ-102. It further reports on the development of electrochemical test cells adapted to both sample volume and hot cell constraints.

  20. 222-S Analytical services final results for Tank 241-U-101, grab samples 1U-96-1 through 1U-96-4

    SciTech Connect

    Miller, G.L., Westinghouse Hanford

    1996-08-23

    This document is the final, format IV, laboratory report for characterization of tank 241-U-101 (U-101) grab samples from risers 1 and 7. It transmits additional analytical data for specific gravity (Sp.G.), and all raw analytical data which were not provided in the 45-day report. The 45-day report is attached to this final report as Part II. Secondary analyses were not performed on any of the U-101 samples. This is because none of the primary analyte limits, which trigger the performance of secondary analyses, were exceeded. Grab samples were taken on May 29, 1996 and May 30, 1996 from risers 1 and 7, respectively, and were received at the 222-S Laboratory on the same days that they were collected. Analyses were performed in accordance with the Tank Sampling and Analysis Plan (TSAP) for this tank and the Safety Screening Data Quality Objective (DQO). The samples were analyzed for differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), total alpha activity (AT), visual appearance, bulk density, and specific gravity. A sample data summary table, includes sample analytical data accompanied by quality control data (for example, duplicate, spike, blank and standard results and detection limits and counting efforts). The table includes data for DSC, TGA, AT, bulk density, volume percent solids and Sp.G. analyses. Data regarding the visual appearance of samples, volume percent solids and density of the solids are provided in tabular form of the 45-day report (attached as Part II). The table of the 45-day report also associates the original customer sample number with corresponding laboratory sample numbers. The TSAP specified notification limits for only DSC and total alpha. Notification limits were not exceeded for DSC or total alpha analyses for any of the samples, consequently immediate notifications were not necessary and were not made.

  1. "I'm ready to eat and grab whatever I can get": Determinants and patterns of African American men's eating practices.

    PubMed

    Griffith, Derek M; Wooley, Alana M; Allen, Julie Ober

    2013-03-01

    This article examines determinants and patterns of African American men's dietary practices. Thematic content analysis was used to analyze data from nine exploratory focus groups conducted with 83 urban, middle-aged and older African American men from southeast Michigan. The men distinguished between healthy and unhealthy foods and "meals" versus other instances of eating. Eating patterns and content differed depending on the meal, work and family schedules, food availability, and whether it was a weekday or weekend. When eating alone or outside the home, men prioritized convenience and preferences for tasty, unhealthy foods. Men often reported skipping breakfast or lunch and grabbing snacks or fast food during the day. They emphasized sharing dinner with their spouses and families-usually a home-cooked, "healthy" meal. On weekends, spouses often cooked less and men snacked and dined out more frequently. Sunday dinners involving favorite, unhealthy comfort foods were the highlight of men's eating practices. African American men tended not to follow healthy eating recommendations because of their busy lives, reliance on spouses to prepare food, and preferences for unhealthy foods. These findings suggest that healthy eating interventions must consider how the contexts of African American men's lives shape their eating practices.

  2. Blood glutamate grabbing does not reduce the hematoma in an intracerebral hemorrhage model but it is a safe excitotoxic treatment modality

    PubMed Central

    Silva-Candal, Andrés da; Vieites-Prado, Alba; Gutiérrez-Fernández, María; Rey, Ramón I; Argibay, Bárbara; Mirelman, David; Sobrino, Tomás; Rodríguez-Frutos, Berta; Castillo, José; Campos, Francisco

    2015-01-01

    Recent studies have shown that blood glutamate grabbing is an effective strategy to reduce the excitotoxic effect of extracellular glutamate released during ischemic brain injury. The purpose of the study was to investigate the effect of two of the most efficient blood glutamate grabbers (oxaloacetate and recombinant glutamate oxaloacetate transaminase 1: rGOT1) in a rat model of intracerebral hemorrhage (ICH). Intracerebral hemorrhage was produced by injecting collagenase into the basal ganglia. Three treatment groups were developed: a control group treated with saline, a group treated with oxaloacetate, and a final group treated with human rGOT1. Treatments were given 1 hour after hemorrhage. Hematoma volume (analyzed by magnetic resonance imaging (MRI)), neurologic deficit, and blood glutamate and GOT levels were quantified over a period of 14 days after surgery. The results observed showed that the treatments used induced a significant reduction of blood glutamate levels; however, they did not reduce the hematoma, nor did they improve the neurologic deficit. In the present experimental study, we have shown that this novel therapeutic strategy is not effective in case of ICH pathology. More importantly, these findings suggest that blood glutamate grabbers are a safe treatment modality that can be given in cases of suspected ischemic stroke without previous neuroimaging. PMID:25735920

  3. To Grab and To Hold: Cultivating communal goals to overcome cultural and structural barriers in first generation college students' science interest.

    PubMed

    Allen, Jill M; Muragishi, Gregg A; Smith, Jessi L; Thoman, Dustin B; Brown, Elizabeth R

    2015-12-01

    Homogeneity within science limits creativity and discovery, and can feed into a perpetuating cycle of underrepresentation. From enhancing social justice to alleviating health and economic disadvantages, broadening participation in science is imperative. We focus here on first-generation students (FGS) and identify factors which grab and hold science interest among this underrepresented group. Might the culture and norms within science unintentionally limit FGS' participation? We argue that two distinct aspects of communal goals contribute to FGS' underrepresentation at different stages of the STEM pipeline: cultural perceptions of science as uncommunal (little emphasis on prosocial behavior and collaboration) and the uncommunal structure of STEM graduate education and training. Across 2 studies we investigated factors that catch (Study 1) and hold (Study 2) FGS' science interest. In Study 1, we find only when FGS believe that working in science will allow them to fulfill prosocial communal purpose goals are they more intrinsically interested in science. Yet, later in the pipeline science education devalues prosocial communal goals creating a structural mobility barrier among FGS. Study 2 found that FGS generally want to stay close to home instead of relocating to pursue a graduate education. For FGS (versus continuing-generation students), higher prosocial communal goal orientation significantly predicted lower residential mobility. We discuss implications for interventions to counteract the uncommunal science education and training culture to help improve access to FGS and other similarly situated underrepresented populations.

  4. Design of a 3D printed lightweight orthotic device based on twisted and coiled polymer muscle: iGrab hand orthosis

    NASA Astrophysics Data System (ADS)

    Saharan, Lokesh; Sharma, Ashvath; Jung de Andrade, Monica; Baughman, Ray H.; Tadesse, Yonas

    2017-04-01

    Partial or total upper extremity impairment affects the quality of life of a vast number of people due to stroke, neuromuscular disease, or trauma. Many researchers have presented hand orthosis to address the needs of rehabilitation or assistance on upper extremity function. Most of the devices available commercially and in literature are powered by conventional actuators such as DC motors, servomotors or pneumatic actuators. Some prototypes are developed based on shape memory alloy (SMA) and dielectric elastomers (DE). This study presents a customizable, 3D printed, a lightweight exoskeleton (iGrab) based on recently reported Twisted and Coiled Polymer (TCP) muscles, which are lightweight, provide high power to weight ratio and large stroke. We used silver coated nylon 6, 6 threads to make the TCP muscles, which can be easily actuated electrothermally. We reviewed briefly hand orthosis created with various actuation technologies and present our design of tendon-driven exoskeleton with the muscles confined in the forearm area. A single muscle is used to facilitate the motion of all three joints namely DIP (Distal interphalangeal), PIP (Proximal Interphalangeal) and MCP (Metacarpophalangeal) using passive tendons though circular rings. The grasping capabilities, along with TCP muscle properties utilized in the design such as life cycle, actuation under load and power inputs are discussed.

  5. To Grab and To Hold: Cultivating communal goals to overcome cultural and structural barriers in first generation college students' science interest

    PubMed Central

    Allen, Jill M.; Muragishi, Gregg A.; Smith, Jessi L.; Thoman, Dustin B.; Brown, Elizabeth R.

    2015-01-01

    Homogeneity within science limits creativity and discovery, and can feed into a perpetuating cycle of underrepresentation. From enhancing social justice to alleviating health and economic disadvantages, broadening participation in science is imperative. We focus here on first-generation students (FGS) and identify factors which grab and hold science interest among this underrepresented group. Might the culture and norms within science unintentionally limit FGS' participation? We argue that two distinct aspects of communal goals contribute to FGS' underrepresentation at different stages of the STEM pipeline: cultural perceptions of science as uncommunal (little emphasis on prosocial behavior and collaboration) and the uncommunal structure of STEM graduate education and training. Across 2 studies we investigated factors that catch (Study 1) and hold (Study 2) FGS' science interest. In Study 1, we find only when FGS believe that working in science will allow them to fulfill prosocial communal purpose goals are they more intrinsically interested in science. Yet, later in the pipeline science education devalues prosocial communal goals creating a structural mobility barrier among FGS. Study 2 found that FGS generally want to stay close to home instead of relocating to pursue a graduate education. For FGS (versus continuing-generation students), higher prosocial communal goal orientation significantly predicted lower residential mobility. We discuss implications for interventions to counteract the uncommunal science education and training culture to help improve access to FGS and other similarly situated underrepresented populations. PMID:26807431

  6. Fasciola hepatica glycoconjugates immuneregulate dendritic cells through the Dendritic Cell-Specific Intercellular adhesion molecule-3-Grabbing Non-integrin inducing T cell anergy

    PubMed Central

    Rodríguez, Ernesto; Kalay, Hakan; Noya, Verónica; Brossard, Natalie; Giacomini, Cecilia; van Kooyk, Yvette; García-Vallejo, Juan J.; Freire, Teresa

    2017-01-01

    Dendritic cell-specific ICAM-3 grabbing non-integrin (DC-SIGN) expressed on a variety of DCs, is a C-type lectin receptor that recognizes glycans on a diverse range of pathogens, including parasites. The interaction of DC-SIGN with pathogens triggers specific signaling events that modulate DC-maturation and activity and regulate T-cell activation by DCs. In this work we evaluate whether F. hepatica glycans can immune modulate DCs via DC-SIGN. We demonstrate that DC-SIGN interacts with F. hepatica glycoconjugates through mannose and fucose residues. We also show that mannose is present in high-mannose structures, hybrid and trimannosyl N-glycans with terminal GlcNAc. Furthermore, we demonstrate that F. hepatica glycans induce DC-SIGN triggering leading to a strong production of TLR-induced IL-10 and IL-27p28. In addition, parasite glycans induced regulatory DCs via DC-SIGN that decrease allogeneic T cell proliferation, via the induction of anergic/regulatory T cells, highlighting the role of DC-SIGN in the regulation of innate and adaptive immune responses by F. hepatica. Our data confirm the immunomodulatory properties of DC-SIGN triggered by pathogen-derived glycans and contribute to the identification of immunomodulatory glyans of helminths that might eventually be useful for the design of vaccines against fasciolosis. PMID:28436457

  7. Fasciola hepatica glycoconjugates immuneregulate dendritic cells through the Dendritic Cell-Specific Intercellular adhesion molecule-3-Grabbing Non-integrin inducing T cell anergy.

    PubMed

    Rodríguez, Ernesto; Kalay, Hakan; Noya, Verónica; Brossard, Natalie; Giacomini, Cecilia; van Kooyk, Yvette; García-Vallejo, Juan J; Freire, Teresa

    2017-04-24

    Dendritic cell-specific ICAM-3 grabbing non-integrin (DC-SIGN) expressed on a variety of DCs, is a C-type lectin receptor that recognizes glycans on a diverse range of pathogens, including parasites. The interaction of DC-SIGN with pathogens triggers specific signaling events that modulate DC-maturation and activity and regulate T-cell activation by DCs. In this work we evaluate whether F. hepatica glycans can immune modulate DCs via DC-SIGN. We demonstrate that DC-SIGN interacts with F. hepatica glycoconjugates through mannose and fucose residues. We also show that mannose is present in high-mannose structures, hybrid and trimannosyl N-glycans with terminal GlcNAc. Furthermore, we demonstrate that F. hepatica glycans induce DC-SIGN triggering leading to a strong production of TLR-induced IL-10 and IL-27p28. In addition, parasite glycans induced regulatory DCs via DC-SIGN that decrease allogeneic T cell proliferation, via the induction of anergic/regulatory T cells, highlighting the role of DC-SIGN in the regulation of innate and adaptive immune responses by F. hepatica. Our data confirm the immunomodulatory properties of DC-SIGN triggered by pathogen-derived glycans and contribute to the identification of immunomodulatory glyans of helminths that might eventually be useful for the design of vaccines against fasciolosis.

  8. Tank 241-TX-302C grab samples 302C-TX-97-1A through 302C-TX-97-3B analytical results for the final report

    SciTech Connect

    Esch, R.A.

    1998-03-12

    This document is the final report for tank 241-TX-302C grab samples. Six grabs samples (302C-TX-97-1A, 302C-TX-97-1B, 302C-TX-97-2A, 302C-TX-97-2B, 302C-TX-97-3A, and 302C-TX-97-3B) were collected from the catch tank level gauge riser on December 19, 1997. The ``A`` and ``B`` portions from each sample location were composited and analyses were performed on the composites in accordance with the Compatibility Grab Sampling and Analysis Plan (TSAP) (Sasaki, 1997) and the Data Quality Objectives for Tank Farms Waste Compatibility Program (DQO) (Rev. 1: Fowler, 1995; Rev. 2: Mulkey and Miller, 1997). The analytical results are presented in Table 1. No notification limits were exceeded. Appearance and Sample Handling Attachment 1 is provided as a cross-reference for relating the tank farm customer identification numbers with the 222-S Laboratory sample numbers and the portion of sample analyzed. Table 2 provides the appearance information.

  9. GeoMapApp Learning Activities: Grab-and-go inquiry-based geoscience activities that bring cutting-edge technology to the classroom

    NASA Astrophysics Data System (ADS)

    Goodwillie, A. M.; Kluge, S.

    2011-12-01

    NSF-funded GeoMapApp Learning Activities (http://serc.carleton.edu/geomapapp) provide self-contained learning opportunities that are centred around the principles of guided inquiry. The activities allow students to interact with and analyse research-quality geoscience data to explore and enhance student understanding of underlying geoscience content and concepts. Each activity offers ready-to-use step-by-step student instructions and answer sheets that can be downloaded from the web page. Also provided are annotated teacher versions of the worksheets that include teaching tips, additional content and suggestions for further work. Downloadable pre- and post- quizzes tied to each activity help educators gauge the learning progression of their students. Short multimedia tutorials and details on content alignment with state and national teaching standards round out the package of material that comprises each "grab-and-go" activity. GeoMapApp Learning Activities expose students to content and concepts typically found at the community college, high school and introductory undergraduate levels. The activities are based upon GeoMapApp (http://www.geomapapp.org), a free, easy-to-use map-based data exploration and visualisation tool that allows students to access a wide range of geoscience data sets in a virtual lab-like environment. Activities that have so far been created under this project include student exploration of seafloor spreading rates, a study of mass wasting as revealed through geomorphological evidence, and an analysis of plate motion and hotspot traces. The step-by-step instructions and guided inquiry approach lead students through each activity, thus reducing the need for teacher intervention whilst also boosting the time that students can spend on productive exploration and learning. The activities can be used, for example, in a classroom lab with the educator present and as self-paced assignments in an out-of-class setting. GeoMapApp Learning Activities

  10. NTIS: Up for Grabs Again?

    ERIC Educational Resources Information Center

    Crawford, Mark

    1988-01-01

    Discusses a move by the Office of Management and Budget to move the 43-year-old National Technical Information Service (NTIS) out of the government. Describes some of the pros and cons of such a change. (TW)

  11. NTIS: Up for Grabs Again?

    ERIC Educational Resources Information Center

    Crawford, Mark

    1988-01-01

    Discusses a move by the Office of Management and Budget to move the 43-year-old National Technical Information Service (NTIS) out of the government. Describes some of the pros and cons of such a change. (TW)

  12. Liability and Insurance Grab Bag.

    ERIC Educational Resources Information Center

    Cohen, Abby J.

    1999-01-01

    Answers questions pertaining to child care center liability, including the following: (1) What are the most common claims?; (2) In what areas are centers most vulnerable?; (3) Under what circumstances are individual staff held responsible for claims?; (4) Is there any point in getting accident insurance if parents already have health insurance?;…

  13. Black Hole Grabs Starry Snack

    NASA Technical Reports Server (NTRS)

    2006-01-01

    [figure removed for brevity, see original site] Poster Version

    This artist's concept shows a supermassive black hole at the center of a remote galaxy digesting the remnants of a star. NASA's Galaxy Evolution Explorer had a 'ringside' seat for this feeding frenzy, using its ultraviolet eyes to study the process from beginning to end.

    The artist's concept chronicles the star being ripped apart and swallowed by the cosmic beast over time. First, the intact sun-like star (left) ventures too close to the black hole, and its own self-gravity is overwhelmed by the black hole's gravity. The star then stretches apart (middle yellow blob) and eventually breaks into stellar crumbs, some of which swirl into the black hole (cloudy ring at right). This doomed material heats up and radiates light, including ultraviolet light, before disappearing forever into the black hole. The Galaxy Evolution Explorer was able to watch this process unfold by observing changes in ultraviolet light.

    The area around the black hole appears warped because the gravity of the black hole acts like a lens, twisting and distorting light.

  14. Technical basis for installation of the double shell tank exhaust flow monitoring systems

    SciTech Connect

    Willingham, W.E., Fluor Daniel Hanford

    1997-03-11

    This document presents the technical bases for installation of flow meters on the ventilation exhaust ducts of the flammable gas watch list double shell tanks (241-AN-103, 241-AN-104, 241-AN-105, 241-AN-107, 241-AW-101 and 241-SY-103), the saltwell receiver tanks (241-AN-101 and 241-SY-102) and the cross-site receiver tank (241-AP-104).

  15. Double shell tank primary ventilation exhaust flow monitor system design description

    SciTech Connect

    Willingham, W.E., Fluor Daniel Hanford

    1997-03-11

    This document describes the flow monitoring systems that will be installed on the ventilation exhaust ducts of the flammable gas watch list double shell tanks (241-AN-103, 241-AN-104, 241-AN-105, 241-AN-107, 241-AW-101 and 241-SY-103), the saltwell receiver tanks (241-AN-101 and 241-SY-102) and the cross-site receiver tank (241-AP-104).

  16. Cesium Ion Exchange Using Tank 241-AN-104 Supernate

    SciTech Connect

    Adu-Wusu, K.

    2003-12-22

    The River Protection Project is to design and build a high level nuclear waste treatment facility. The waste treatment plant is to process millions of gallons of radioactive waste stored in tanks at the Hanford Site. The high level nuclear waste treatment process includes various unit operations, such as ultrafiltration, precipitation, evaporation, ion exchange, and vitrification. Ion exchange is identified as the optimal treatment method for removal of cesium-137 and Tc-99 from the waste. Extensive ion exchange testing was performed using small-scale columns with actual waste samples. The objectives of this study were to: demonstrate SuperLig 644 ion exchange performance and process steps for the removal of cesium from actual AN-104 tank waste; pretreat actual AN-104 tank waste to reduce the concentration of cesium-137 in the waste below LAW vitrification limit; produce and characterize cesium eluate solutions for use in eluate evaporation tests. The experiments consisted of batch contact and small-scale column tests. The batch contact tests measured sorption partition coefficients Kds. The Kds were used to predict the effective resin capacity. The small-scale column tests, which closely mimic plant conditions, generated loading and elution profile data used to determine whether removal targets and design requirements were met.

  17. Pretreatment/Radionuclide Separations of Cs/Tc from Supernates

    SciTech Connect

    Thompson, M.C.

    1998-09-01

    Significant improvements have been made in ion exchange and solvent extraction materials and processes available for separation of the radionuclides cesium and technetium from both acid and alkaline waste solutions. New ion exchange materials and solvent extraction reagents are more selective for Cs over sodium and potassium than previous materials. The higher selectivity gives higher Cs capacity and improved separation processes. Technetium removal has been improved by new ion exchange resins, which have either improved capacity or easier elution. Several different crown ethers have been shown to extract pertechnetate ion selectively over other anions. Organic complexants in some waste solutions reduce pertechnetate ion and stabilize the reduced species. Selective oxidation allows conversion to pertechnetate without oxidation of the organic complexants.

  18. Distribution of dendritic cells expressing dendritic cell-specific ICAM-3-grabbing non-integrin (DC-SIGN, CD209): Morphological analysis using a novel Photoshop-aided multiple immunohistochemistry technique.

    PubMed

    Masuda, Akihiro; Nishikawa, Toshio

    2014-08-01

    The distribution of dendritic cells (DCs) expressing DC-specific ICAM-3-grabbing non-integrin (DC-SIGN, CD209) and the morphological interaction of DC-SIGN⁺ DCs with other cells, especially B cells, in tonsillar and other lymphoid tissues were investigated by multiple immunohistochemistry (IHC) using the graphics editing program Photoshop, which enabled staining with 4 or more antibodies in formalin-fixed paraffin sections. Images obtained by repetition of conventional IHC using diaminobenzidine color development in a tissue section were processed on Photoshop for multiple staining. DC-SIGN⁺ DCs were present in the area around the lymphoid follicles and formed a DC-SIGN⁺ DC-rich area, and these cells contacted not only T cells, fascin⁺ DCs, and blood vessels but also several subsets of B cells simultaneously, including naïve and memory B cells. DC-SIGN⁺ DCs may play an important role in the regulation of the immune response mediated by not only T cells but also B cells. The multiple IHC method introduced in the present study is a simple and useful method for analyzing details of complex structures. Because this method can be applied to routinely processed paraffin sections with conventional IHC with diaminobenzidine, it can be applied to a wide variety of archival specimens.

  19. Investigation of promoter variations in dendritic cell-specific ICAM3-grabbing non-integrin (DC-SIGN) (CD209) and their relevance for human cytomegalovirus reactivation and disease after allogeneic stem-cell transplantation.

    PubMed

    Mezger, M; Steffens, M; Semmler, C; Arlt, E-M; Zimmer, M; Kristjanson, G-I; Wienker, T F; Toliat, M R; Kessler, T; Einsele, H; Loeffler, J

    2008-03-01

    Promoter variations in Toll-like receptor genes (n = 7) and genes encoding pathogen recognition and virus entry receptors (n = 7) were screened to detect any association with human cytomegalovirus (hCMV) reactivation and disease in patients following allogeneic stem-cell transplantation. Two single nucleotide polymorphisms (rs735240, G>A; rs2287886, C>T) in the promoter region of the dendritic cell-specific ICAM3-grabbing non-integrin (DC-SIGN) showed a significant association with an increased risk of development of hCMV reactivation and disease. Furthermore, these genetic markers influenced the expression levels of DC-SIGN on immature dendritic cells, as well as the infection efficiency of immature dendritic cells by hCMV, as determined by hCMV immediate-early antigen staining. Screening of patients following allogeneic stem-cell transplantation for the presence of these defined genetic polymorphisms might help to predict the individual risk of hCMV reactivation and disease.

  20. HIV-1 gp120 Glycoprotein Interacting with Dendritic Cell-specific Intercellular Adhesion Molecule 3-grabbing Non-integrin (DC-SIGN) Down-Regulates Tight Junction Proteins to Disrupt the Blood Retinal Barrier and Increase Its Permeability.

    PubMed

    Qian, Yi-Wen; Li, Chuan; Jiang, Ai-Ping; Ge, Shengfang; Gu, Ping; Fan, Xianqun; Li, Tai-Sheng; Jin, Xia; Wang, Jian-Hua; Wang, Zhi-Liang

    2016-10-28

    Approximately 70% of HIV-1 infected patients acquire ocular opportunistic infections and manifest eye disorders during the course of their illness. The mechanisms by which pathogens invade the ocular site, however, are unclear. Under normal circumstances, vascular endothelium and retinal pigment epithelium (RPE), which possess a well developed tight junction complex, form the blood-retinal barrier (BRB) to prevent pathogen invasion. We hypothesize that disruption of the BRB allows pathogen entry into ocular sites. The hypothesis was tested using in vitro models. We discovered that human RPE cells could bind to either HIV-1 gp120 glycoproteins or HIV-1 viral particles. Furthermore, the binding was mediated by dendritic cell-specific intercellular adhesion molecule 3-grabbing non-integrin (DC-SIGN) expressed on RPE cells. Upon gp120 binding to DC-SIGN, cellular NF-κB signaling was triggered, leading to the induction of matrix metalloproteinases, which subsequently degraded tight junction proteins and disrupted the BRB integrity. DC-SIGN knockdown or prior blocking with a specific antibody abolished gp120-induced matrix metalloproteinase expression and reduced the degradation of tight junction proteins. This study elucidates a novel mechanism by which HIV, type 1 invades ocular tissues and provides additional insights into the translocation or invasion process of ocular complication-associated pathogens.

  1. Analysis of genetic polymorphisms in CCR5, CCR2, stromal cell-derived factor-1, RANTES, and dendritic cell-specific intercellular adhesion molecule-3-grabbing nonintegrin in seronegative individuals repeatedly exposed to HIV-1.

    PubMed

    Liu, Huanliang; Hwangbo, Yon; Holte, Sarah; Lee, Jean; Wang, Chunhui; Kaupp, Nicole; Zhu, Haiying; Celum, Connie; Corey, Lawrence; McElrath, M Juliana; Zhu, Tuofu

    2004-09-15

    To determine the influence of host genetics on human immunodeficiency virus (HIV) type 1 infection, we examined 94 repeatedly exposed seronegative (ES) individuals for polymorphisms in multiple genes and compared the results with those for 316 HIV-1-seropositive and 425 HIV-1-seronegative individuals. The frequency of homozygous C-C chemokine receptor (CCR) 5- Delta 32 was higher in ES (3.2%) than in HIV-1-seropositive individuals (0.0%; P=.012). However, the CCR5-59029A, CCR2-64I, stromal cell-derived factor (SDF)-1-3'A, RANTES (regulated on activation, normally T cell-expressed and -secreted)-403A, and RANTES-28G polymorphisms were not associated with resistance to HIV-1 infection. Furthermore, we identified novel variants in the DC-SIGN (dendritic cell-specific intercellular adhesion molecule-3-grabbing nonintegrin) repeat region and observed that heterozygous DC-SIGN reduced the risk of HIV-1 infection (3.2% in ES individuals vs. 0.0% in HIV-1-seropositive individuals; P=.011).

  2. Dendritic Cell-specific Intercellular Adhesion Molecule 3-grabbing Non-integrin (DC-SIGN) Recognizes a Novel Ligand, Mac-2-binding Protein, Characteristically Expressed on Human Colorectal Carcinomas*

    PubMed Central

    Nonaka, Motohiro; Ma, Bruce Yong; Imaeda, Hirotsugu; Kawabe, Keiko; Kawasaki, Nobuko; Hodohara, Keiko; Kawasaki, Nana; Andoh, Akira; Fujiyama, Yoshihide; Kawasaki, Toshisuke

    2011-01-01

    Dendritic cell (DC)-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN) is a type II transmembrane C-type lectin expressed on DCs such as myeloid DCs and monocyte-derived DCs (MoDCs). Recently, we have reported that DC-SIGN interacts with carcinoembryonic antigen (CEA) expressed on colorectal carcinoma cells. CEA is one of the most widely used tumor markers for gastrointestinal cancers such as colorectal cancer. On the other hand, other groups have reported that the level of Mac-2-binding protein (Mac-2BP) increases in patients with pancreatic, breast, and lung cancers, virus infections such as human immunodeficiency virus and hepatitis C virus, and autoimmune diseases. Here, we first identified Mac-2BP expressed on several colorectal carcinoma cell lines as a novel DC-SIGN ligand through affinity chromatography and mass spectrometry. Interestingly, we found that DC-SIGN selectively recognizes Mac-2BP derived from some colorectal carcinomas but not from the other ones. Furthermore, we found that the α1-3,4-fucose moieties of Le glycans expressed on DC-SIGN-binding Mac-2BP were important for recognition. DC-SIGN-dependent cellular interactions between immature MoDCs and colorectal carcinoma cells significantly inhibited MoDC functional maturation, suggesting that Mac-2BP may provide a tolerogenic microenvironment for colorectal carcinoma cells through DC-SIGN-dependent recognition. Importantly, Mac-2BP was detected as a predominant DC-SIGN ligand expressed on some primary colorectal cancer tissues from certain parts of patients in comparison with CEA from other parts, suggesting that DC-SIGN-binding Mac-2BP bearing tumor-associated Le glycans may become a novel potential colorectal cancer biomarker for some patients instead of CEA. PMID:21515679

  3. The water footprint of land grabbing

    NASA Astrophysics Data System (ADS)

    Rulli, Maria Cristina; D'Odorico, Paolo

    2013-12-01

    increasing global demand for food, fibers, and biofuels has made investments in agriculture a priority for some governments and corporations eager to expand their agricultural production while securing good profits. Here we calculate the water appropriation associated with land deals at different negotiation and implementation stages. Using estimates of actual and potential evapotranspiration for the crops planted in the acquired land, we calculate the green and blue water appropriated by land investors under a variety of irrigation scenarios. We also determine the grey water footprint as the amount of water required to dilute to allowable standards the pollution resulting from fertilizer applications. We found that about 380 × 109 m3 yr-1 of rainwater is appropriated with the 43 million ha of reported contract area acquired by agri-investors (>240 × 109 m3 yr-1 in the 29 million ha of foreign acquisitions only). This water would be sufficient to feed ≈ 300-390 million people.

  4. Grab a MOOC by the Horns

    ERIC Educational Resources Information Center

    Lokey-Vega, Anissa

    2014-01-01

    MOOCs (Massive Open Online Courses) have been barreling through the field of higher education since the first MOOC was launched in 2008. These free courses were initially believed to be a way to provide a high-caliber education to anyone with Internet access and a will to learn. Although research so far has shown that MOOCs aren't living up…

  5. Grab a MOOC by the Horns

    ERIC Educational Resources Information Center

    Lokey-Vega, Anissa

    2014-01-01

    MOOCs (Massive Open Online Courses) have been barreling through the field of higher education since the first MOOC was launched in 2008. These free courses were initially believed to be a way to provide a high-caliber education to anyone with Internet access and a will to learn. Although research so far has shown that MOOCs aren't living up…

  6. DNA origami: Nanorobots grab cellular control

    NASA Astrophysics Data System (ADS)

    Elbaz, Johann; Willner, Itamar

    2012-04-01

    Self-assembled barrel-like DNA nanostructures carrying active payloads and pre-programmed with logic operations to reconfigure in response to cell-surface cues can trigger a variety of intracellular functions.

  7. 241-SY Tank Farm Construction Extent of Condition Review for Tank Integrity

    SciTech Connect

    Barnes, Travis J.; Boomer, Kayle D.; Gunter, Jason R.; Venetz, Theodore J.

    2013-07-25

    This report provides the results of an extent of condition construction history review for tanks 241-SY-101, 241-SY-102, and 241-SY-103. The construction history of the 241-SY tank farm has been reviewed to identify issues similar to those experienced during tank 241-AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank 241-AY-102 as the comparison benchmark. In the 241-SY tank farm, the third DST farm constructed, refractory quality and stress relief were improved, while similar tank and liner fabrication issues remained.

  8. Transport of Tank 241-SY-101 Waste Slurry: Effects of Dilution and Temperature on Critical Pipeline Velocity

    SciTech Connect

    KP Recknagle; Y Onishi

    1999-06-15

    This report presents the methods and results of calculations performed to predict the critical velocity and pressure drop required for the two-inch pipeline transfer of solid/liquid waste slurry from underground waste storage Tank 241-SY-101 to Tank 241-SY- 102 at the Hanford Site. The effects of temperature and dilution on the critical velocity were included in the analysis. These analyses show that Tank 241-SY-101 slurry should be diluted with water prior to delivery to Tank 241-SY-102. A dilution ratio of 1:1 is desirable and would allow the waste to be delivered at a critical velocity of 1.5 ft/sec. The system will be operated at a flow velocity of 6 ft/sec or greater therefore, this velocity will be sufficient to maintain a stable slurry delivery through the pipeline. The effect of temperature on the critical velocity is not a limiting factor when the slurry is diluted 1:1 with water. Pressure drop at the critical velocity would be approximately two feet for a 125-ft pipeline (or 250-ft equivalent straight pipeline). At 6 ft/sec, the pressure drop would be 20 feet over a 250-ft equivalent straight pipeline.

  9. Separation, Concentration, and Immobilization of Technetium and Iodine from Alkaline Supernate Waste

    SciTech Connect

    James Harvey; Michael Gula

    1998-12-07

    Development of remediation technologies for the characterization, retrieval, treatment, concentration, and final disposal of radioactive and chemical tank waste stored within the Department of Energy (DOE) complex represents an enormous scientific and technological challenge. A combined total of over 90 million gallons of high-level waste (HLW) and low-level waste (LLW) are stored in 335 underground storage tanks at four different DOE sites. Roughly 98% of this waste is highly alkaline in nature and contains high concentrations of nitrate and nitrite salts along with lesser concentrations of other salts. The primary waste forms are sludge, saltcake, and liquid supernatant with the bulk of the radioactivity contained in the sludge, making it the largest source of HLW. The saltcake (liquid waste with most of the water removed) and liquid supernatant consist mainly of sodium nitrate and sodium hydroxide salts. The main radioactive constituent in the alkaline supernatant is cesium-137, but strontium-90, technetium-99, and transuranic nuclides are also present in varying concentrations. Reduction of the radioactivity below Nuclear Regulatory Commission (NRC) limits would allow the bulk of the waste to be disposed of as LLW. Because of the long half-life of technetium-99 (2.1 x 10 5 y) and the mobility of the pertechnetate ion (TcO 4 - ) in the environment, it is expected that technetium will have to be removed from the Hanford wastes prior to disposal as LLW. Also, for some of the wastes, some level of technetium removal will be required to meet LLW criteria for radioactive content. Therefore, DOE has identified a need to develop technologies for the separation and concentration of technetium-99 from LLW streams. Eichrom has responded to this DOE-identified need by demonstrating a complete flowsheet for the separation, concentration, and immobilization of technetium (and iodine) from alkaline supernatant waste.

  10. Characterization of Tank 23H Supernate Per Saltstone Waste Acceptance Criteria Analysis Requirements-2005

    SciTech Connect

    Oji, L

    2005-06-01

    Variable depth Tank 23H samples (22-inch sample [HTF-014] and 185-inch sample [HTF-013]) were pulled from Tank 23H in February, 2005 for characterization. The characterization of the Tank 23H low activity waste is part of the overall liquid waste processing activities. This characterization examined the species identified in the Saltstone Waste Acceptance Criteria (WAC) for the transfer of waste into the Salt-Feed Tank (SFT). The samples were delivered to the Savannah River National Laboratory (SRNL) and analyzed. Apart from radium-226 with an average measured detection limit of < 2.64E+03 pCi/mL, which is about the same order of magnitude as the WAC limit (< 8.73E+03 pCi/mL), none of the species analyzed was found to approach the limits provided in the Saltstone WAC. The concentration of most of the species analyzed for the Tank 23H samples were 2-5 orders of magnitude lower than the WAC limits. The achievable detection limits for a number of the analytes were several orders of magnitude lower than the WAC limits, but one or two orders of magnitude higher than the requested detection limits. Analytes which fell into this category included plutonium-241, europium-154/155, antimony-125, tin-126, ruthenium/rhodium-106, selenium-79, nickel-59/63, ammonium ion, copper, total nickel, manganese and total organic carbon.

  11. Characterization of Tank 23H Supernate Per Saltstone Waste Acceptance Criteria Analysis Requirements -2005

    SciTech Connect

    Oji, L

    2005-05-05

    Variable depth Tank 23H samples (22-inch sample [HTF-014] and 185-inch sample [HTF-013]) were pulled from Tank 23H in February, 2005 for characterization. The characterization of the Tank 23H low activity waste is part of the overall liquid waste processing activities. This characterization examined the species identified in the Saltstone Waste Acceptance Criteria (WAC) for the transfer of waste into the Salt-Feed Tank (SFT). The samples were delivered to the Savannah River National Laboratory (SRNL) and analyzed. Apart from radium-226 with an average measured detection limit of < 2.64E+03 pCi/mL, which is about the same order of magnitude as the WAC limit (< 8.73E+03 pCi/mL), none of the species analyzed was found to approach the limits provided in the Saltstone WAC. The concentration of most of the species analyzed for the Tank 23H samples were 2-5 orders of magnitude lower than the WAC limits. The achievable detection limits for a number of the analytes were several orders of magnitude lower than the WAC limits, but one or two orders of magnitude higher than the requested detection limits. Analytes which fell into this category included plutonium-241, europium-154/155, antimony-125, tin-126, ruthenium/rhodium-106, selenium-79, nickel-59/63, ammonium ion, copper, total nickel, manganese and total organic carbon.

  12. Land Grabbing and the Commodification of Agricultural Land in Africa

    NASA Astrophysics Data System (ADS)

    D'Odorico, P.; Rulli, M. C.

    2014-12-01

    The increasing global demand for farmland products is placing unprecedented pressure on the global agricultural system. The increasing demand can be met through either the intensification or the expansion of agricultural production at the expenses of other ecosystems. The ongoing escalation of large scale land acquisitions in the developing world may contribute to both of these two processes. Investments in agriculture have become a priority for a number of governments and corporations that are trying to expand their agricultural production while securing good profits. It is unclear however to what extent these investments are driving the intensification or the expansion of agriculture. In the last decade large scale land acquisitions by external investors have increased at unprecedented rates. This global land rush was likely enhanced by recent food crises, when prices skyrocketed in response to crop failure, new bioenergy policies, and the increasing demand for agricultural products by a growing and increasingly affluent human population. Corporations recognized the potential for high return investments in agricultural land, while governments started to enhance their food security by purchasing large tracts of land in foreign countries. It has been estimated that, to date, about 35.6 million ha of cropland - more than twice the agricultural land of Germany - have been acquired by foreign investors worldwide. As an effect of these land deals the local communities lose legal access to the land and its products. Here we investigate the effect of large scale land acquisition on agricultural intensification or expansion in African countries. We discuss the extent to which these investments in agriculture may increase crop production and stress how this phenomenon can greatly affect the local communities, their food security, economic stability and the long term resilience of their livelihoods, regardless of whether the transfer of property rights is the result of an informed decision and the land was paid at market value.

  13. Grab a Great Resource: Using Educational Resources in the Community.

    ERIC Educational Resources Information Center

    Northern Illinois Univ., De Kalb.

    A guide to teaching resources in three northern Illinois counties was created by 28 teachers in a graduate course entitled "Integrating Community Resources into Curriculum and Instruction." The first part of the guide provides contact information and a brief description for approximately 100 people, places, and things that could be…

  14. Grabbing the Brass Ring: Who Shapes Teacher Policy?

    ERIC Educational Resources Information Center

    Koppich, Julia E.; Esch, Camille

    2012-01-01

    This article examines the shift in the locus of decision-making authority across more than 25 years of policy efforts to improve teaching effectiveness. Previously the province of local government, states assumed the lion's share of authority for teaching policy during the 1980s and 1990s. As states and the federal government rose to education…

  15. Grab a coffee: your aerial images are already analyzed

    NASA Astrophysics Data System (ADS)

    Garetto, Anthony; Rademacher, Thomas; Schulz, Kristian

    2015-07-01

    For over 2 decades the AIMTM platform has been utilized in mask shops as the standard for actinic review of photomask sites in order to perform defect disposition and repair review. Throughout this time the measurement throughput of the systems has been improved in order to keep pace with the requirements demanded by a manufacturing environment, however the analysis of the sites captured has seen little improvement and remained a manual process. This manual analysis of aerial images is time consuming, subject to error and unreliability and contributes to holding up turn-around time (TAT) and slowing process flow in a manufacturing environment. AutoAnalysis, the first application available for the FAVOR® platform, offers a solution to these problems by providing fully automated data transfer and analysis of AIMTM aerial images. The data is automatically output in a customizable format that can be tailored to your internal needs and the requests of your customers. Savings in terms of operator time arise from the automated analysis which no longer needs to be performed. Reliability is improved as human error is eliminated making sure the most defective region is always and consistently captured. Finally the TAT is shortened and process flow for the back end of the line improved as the analysis is fast and runs in parallel to the measurements. In this paper the concept and approach of AutoAnalysis will be presented as well as an update to the status of the project. A look at the benefits arising from the automation and the customizable approach of the solution will be shown.

  16. Grabbing ERIC by the Tail: Introducing the ERIC Commissioned Papers.

    ERIC Educational Resources Information Center

    Lankes, R. David

    2001-01-01

    Explains the origin of the ERIC (Educational Resources Information Center) commissioned papers that appear in this journal issue that assess the ERIC program. Discusses the need to unify the system by transforming the database into a knowledge base with a unified metadata framework that would include a variety of multimedia materials. (LRW)

  17. Accounting for "land-grabbing" from a biocapacity viewpoint.

    PubMed

    Coscieme, Luca; Pulselli, Federico M; Niccolucci, Valentina; Patrizi, Nicoletta; Sutton, Paul C

    2016-01-01

    The comparison of the Ecological Footprint and its counterpart (i.e. biocapacity) allow for a classification of the world's countries as ecological creditors (Ecological Footprint lower than biocapacity) or debtors (Ecological Footprint higher than biocapacity). This classification is a national scale assessment on an annual time scale that provides a view of the ecological assets appropriated by the local population versus the natural ecological endowment of a country. We show that GDP per capita over a certain threshold is related with the worsening of the footprint balance in countries classified as ecological debtors. On the other hand, this correlation is lost when ecological creditor nations are considered. There is evidence that governments and investors from high GDP countries are playing a crucial role in impacting the environment at the global scale which is significantly affecting the geography of sustainability and preventing equal opportunities for development. In particular, international market dynamics and the concentration of economic power facilitate the transfer of biocapacity related to “land grabbing”, i.e. large scale acquisition of agricultural land. This transfer mainly occurs from low to high GDP countries, regardless of the actual need of foreign biocapacity, as expressed by the national footprint balance. A first estimation of the amount of biocapacity involved in this phenomenon is provided in this paper in order to better understand its implications on global sustainability and national and international land use policy.

  18. Global land and water grabbing for food and bioenergy

    NASA Astrophysics Data System (ADS)

    Rulli, M. C.; D'Odorico, P.

    2014-12-01

    The increasing demand for food, fibers and biofuels, the consequently escalating prices of agricultural products, and the uncertainty of international food markets have recently drawn the attention of governments and corporations toward investments in productive agricultural land, mostly in developing countries. Since 2000 more than 37 million hectares of arable land have been purchased or leased by foreign investors worldwide. The targeted regions are typically located in areas where crop yields are relatively low because of lack of modern technology. It is expected that in the long run large scale investments in agriculture and the consequent development of commercial farming will bring the technology required to close the existing crop yield gaps. Recently, a number of studies and reports have documented the process of foreign land acquisition, while the associated appropriation of land based resources (e.g., water and crops) has remained poorly investigated. The amount of food this land can produce and the number of people it could feed still needs to be quantified. It is also unclear to what extent the acquired land will be used to for biofuel production and the role played by U.S. and E.U. bioenergy policies as drivers of the ongoing land rush. The environmental impacts of these investments in agriculture require adequate investigation. Here we provide a global quantitative assessment of the rates of water and crop appropriation potentially associated with large scale land acquisitions. We evaluate the associated impacts on the food and energy security of both target and investors' countries, and highlight the societal and environmental implications of the land rush phenomenon.

  19. Grabbing the Brass Ring: Who Shapes Teacher Policy?

    ERIC Educational Resources Information Center

    Koppich, Julia E.; Esch, Camille

    2012-01-01

    This article examines the shift in the locus of decision-making authority across more than 25 years of policy efforts to improve teaching effectiveness. Previously the province of local government, states assumed the lion's share of authority for teaching policy during the 1980s and 1990s. As states and the federal government rose to education…

  20. Game, Water, and People Up for Grabs: A Review Essay.

    ERIC Educational Resources Information Center

    Keller, Robert H.

    1979-01-01

    This article asserts if Americans continue to pump, mine and extract natural resources they will inevitably confront the harsh but intractable facts of nature, and that a salvageable future must be one of limits, of new social controls and of recovering an old ethic which honors foresight, forebearance and sharing. (Author/RTS)

  1. Grabbing ERIC by the Tail: Introducing the ERIC Commissioned Papers.

    ERIC Educational Resources Information Center

    Lankes, R. David

    2001-01-01

    Explains the origin of the ERIC (Educational Resources Information Center) commissioned papers that appear in this journal issue that assess the ERIC program. Discusses the need to unify the system by transforming the database into a knowledge base with a unified metadata framework that would include a variety of multimedia materials. (LRW)

  2. Barry grabs a handrail on ISS during the first EVA

    NASA Image and Video Library

    2001-08-16

    STS105-E-5238 (16 August 2001) --- Astronaut Daniel T. Barry uses a handrail to stabilize himself as works on the International Space Station (ISS) during the first of two scheduled STS-105 space walks. The image was recorded with a digital still camera.

  3. Healthy Breakfast: Quick, Flexible Options to Grab at Home

    MedlinePlus

    ... Accessed Nov. 12, 2016. Rosato V, et al. Energy contribution and nutrient composition of breakfast and their relations to overweight in free-living individuals: A systematic review. Advances in Nutrition. ...

  4. Laboratory Report on Performance Evaluation of Key Constituents during Pre-Treatment of High Level Waste Direct Feed

    SciTech Connect

    Huber, Heinz J.

    2013-06-24

    The analytical capabilities of the 222-S Laboratory are tested against the requirements for an optional start up scenario of the Waste Treatment and Immobilization Plant on the Hanford Site. In this case, washed and in-tank leached sludge would be sent directly to the High Level Melter, bypassing Pretreatment. The sludge samples would need to be analyzed for certain key constituents in terms identifying melter-related issues and adjustment needs. The analyses on original tank waste as well as on washed and leached material were performed using five sludge samples from tanks 241-AY-102, 241-AZ-102, 241-AN-106, 241-AW-105, and 241-SY-102. Additionally, solid phase characterization was applied to determine the changes in mineralogy throughout the pre-treatment steps.

  5. Multi-function Waste Tank Facility path forward engineering analysis -- Technical Task 3.6, Estimate of operational risk in 200 West Area

    SciTech Connect

    Coles, G.A.

    1995-04-28

    Project W-0236A has been proposed to provide additional waste tank storage in the 200 East and 200 West Areas. This project would construct two new waste tanks in the 200 West Area and four new tanks in the 200 East Area, and a related project (Project W-058) would construct a new cross-site line. These projects are intended to ensure sufficient space and flexibility for continued tank farm operations, including tank waste remediation and management of unforeseen contingencies. The objective of this operational risk assessment is to support determination of the adequacy of the free-volume capacity provided by Projects W-036A and W-058 and to determine related impacts. The scope of the assessment is the 200 West Area only and covers the time period from the present to the year 2005. Two different time periods were analyzed because the new cross-site tie line will not be available until 1999. The following are key insights: success of 200 West Area tank farm operations is highly correlated to the success of the cross-site transfer line and the ability of the 200 East Area to receive waste from 200 West; there is a high likelihood of a leak on a complexed single-shell tank in the next 4 years (sampling pending); there is a strong likelihood, in the next 4 years, that some combination of tank leaks, facility upsets, and cross-site line failure will require more free tank space than is currently available in Tank 241-SY-102; in the next 4 to 10 years, there is a strong likelihood that a combination of a cross-site line failure and the need to accommodate some unscheduled waste volume will require more free tank space than is presently available in Tank 241-SY-102; the inherent uncertainty in volume projections is in the range of 3 million gallons; new million-gallon tanks increase the ability to manage contingencies and unplanned events.

  6. Tank characterization report for double-shell tank 241-AN-102

    SciTech Connect

    Jo, J., Westinghouse Hanford

    1996-08-29

    This characterization report summarizes the available information on the historical uses, current status, and sampling and analysis results of waste stored in double-shell underground storage tank 241- AN-102. This report supports the requirements of the Hanford Federal Facility Agreement and Consent Order, Milestone M-44-09 (Ecology et al. 1996). Tank 241-AN-102 is one of seven double-shell tanks located in the AN Tank Farm in the Hanford Site 200 East Area. The tank was hydrotested in 1981, and when the water was removed, a 6-inch heel was left. Tank 241-AN-102 began receiving waste from tank 241-SY-102 beginning in 1982. The tank was nearly emptied in the third quarter of 1983, leaving only 125 kL (33 kgal) of waste. Between the fourth quarter of 1983 and the first quarter of 1984, tank 241-AN-102 received waste from tanks 241-AY-102, 241-SY-102, 241-AW-105, and 241- AN-101. The tank was nearly emptied in the second quarter of 1984, leaving a heel of 129 kL (34 kgal). During the second and third quarters of 1984, the tank was filled with concentrated complexant waste from tank 241-AW-101. Since that time, only minor amounts of Plutonium-Uranium Extraction (PUREX) Plant miscellaneous waste and water have been received; there have been no waste transfer to or from the tank since 1992. Therefore, the waste currently in the tank is considered to be concentrated complexant waste. Tank 241-AN-102 is sound and is not included on any of the Watch Lists.

  7. Vitrification of M-Area Mixed (Hazardous and Radioactive) F006 Wastes: I. Sludge and Supernate Characterization

    SciTech Connect

    Jantzen, C.M.

    2001-10-05

    Technologies are being developed by the US Department of Energy's (DOE) Nuclear Facility sites to convert low-level and mixed (hazardous and radioactive) wastes to a solid stabilized waste form for permanent disposal. One of the alternative technologies is vitrification into a borosilicate glass waste form. The Environmental Protection Agency (EPA) has declared vitrification the Best Demonstrated Available Technology (BDAT) for high-level radioactive mixed waste and produced a Handbook of Vitrification Technologies for Treatment of Hazardous and Radioactive Waste. The DOE Office of Technology Development (OTD) has taken the position that mixed waste needs to be stabilized to the highest level reasonably possible to ensure that the resulting waste forms will meet both current and future regulatory specifications. Stabilization of low level and hazardous wastes in glass are in accord with the 1988 Savannah River Technology Center (SRTC), then the Savannah River Laboratory (SRL), Professional Planning Committee (PPC) recommendation that high nitrate containing (low-level) wastes be incorporated into a low temperature glass (via a sol-gel technology). The investigation into this new technology was considered timely because of the potential for large waste volume reduction compared to solidification into cement.

  8. GLYCOLIC-NITRIC ACID FLOWSHEET DEMONSTRATION OF THE DWPF CHEMICAL PROCESS CELL WITH SLUDGE AND SUPERNATE SIMULANTS

    SciTech Connect

    Lambert, D.; Stone, M.; Newell, J.; Best, D.; Zamecnik, J.

    2012-08-28

    Savannah River Remediation (SRR) is evaluating changes to its current Defense Waste Processing Facility (DWPF) flowsheet to improve processing cycle times. This will enable the facility to support higher canister production while maximizing waste loading. Higher throughput is needed in the Chemical Process Cell (CPC) since the installation of the bubblers into the melter has increased melt rate. Due to the significant maintenance required for the DWPF gas chromatographs (GC) and the potential for production of flammable quantities of hydrogen, reducing or eliminating the amount of formic acid used in the CPC is being developed. Earlier work at Savannah River National Laboratory has shown that replacing formic acid with an 80:20 molar blend of glycolic and formic acids has the potential to remove mercury in the SRAT without any significant catalytic hydrogen generation. This report summarizes the research completed to determine the feasibility of processing without formic acid. In earlier development of the glycolic-formic acid flowsheet, one run (GF8) was completed without formic acid. It is of particular interest that mercury was successfully removed in GF8, no formic acid at 125% stoichiometry. Glycolic acid did not show the ability to reduce mercury to elemental mercury in initial screening studies, which is why previous testing focused on using the formic/glycolic blend. The objective of the testing detailed in this document is to determine the viability of the nitric-glycolic acid flowsheet in processing sludge over a wide compositional range as requested by DWPF. This work was performed under the guidance of Task Technical and Quality Assurance Plan (TT&QAP). The details regarding the simulant preparation and analysis have been documented previously.

  9. GLYCOLIC-NITRIC ACID FLOWSHEET DEMONSTRATION OF THE DWPF CHEMICAL PROCESSING CELL WITH MATRIX SIMULANTS AND SUPERNATE

    SciTech Connect

    Lambert, D.; Stone, M.; Newell, J.; Best, D.

    2012-05-07

    Savannah River Remediation (SRR) is evaluating changes to its current DWPF flowsheet to improve processing cycle times. This will enable the facility to support higher canister production while maximizing waste loading. Higher throughput is needed in the CPC since the installation of the bubblers into the melter has increased melt rate. Due to the significant maintenance required for the DWPF gas chromatographs (GC) and the potential for production of flammable quantities of hydrogen, reducing or eliminating the amount of formic acid used in the CPC is being developed. Earlier work at Savannah River National Laboratory has shown that replacing formic acid with an 80:20 molar blend of glycolic and formic acids has the potential to remove mercury in the SRAT without any significant catalytic hydrogen generation. This report summarizes the research completed to determine the feasibility of processing without formic acid. In earlier development of the glycolic-formic acid flowsheet, one run (GF8) was completed without formic acid. It is of particular interest that mercury was successfully removed in GF8, no formic acid at 125% stoichiometry. Glycolic acid did not show the ability to reduce mercury to elemental mercury in initial screening studies, which is why previous testing focused on using the formic/glycolic blend. The objective of the testing detailed in this document is to determine the viability of the nitric-glycolic acid flowsheet in processing sludge over a wide compositional range as requested by DWPF. This work was performed under the guidance of Task Technical and Quality Assurance Plan (TT and QAP). The details regarding the simulant preparation and analysis have been documented previously.

  10. Evaluation and comparison of SuperLig{reg_sign} 644, resorcinol-formaldehyde and CS-100 ion exchange materials for the removal of cesium from simulated alkaline supernate

    SciTech Connect

    Brown, G.N.; Bray, L.A.; Eloviche, R.J.; Bruening, R.L.; Decker, R.M.; Kafka, T.M.; White, L.R.

    1995-03-01

    PNL evaluated three polymeric materials for Cs removal efficiency from a simulated Hanford Neutralized Current Acid Waste (NCAW) supernatant liquid using 200 mL ion exchange columns. Cs loadings (mmole Cs/g resin) were 0.20, 0.18, and 0.039 for Super Lig 644, R-F, and CS-100 (0.045, 0.070, 0.011 mmole Cs/mL resin). Elution of each resin material with 0.5 M HNO{sub 3} required 3.5, 7.0, and 3.2 cv to reach 0.1 C/C{sub 0} for the respective materials, resulting in volume compressions of 27, 20, and 6.9. Peak Cs concentrations during elution was 185, 38.5, and 27.8 C/C{sub 0}. SuperLig 644 had the highest Cs loading per gram in NCAW and the greatest volume compression on aci elution. Because of high density and poor elution, R-F had the highest Cs loading per unit volume and lower volume compression. CS-100, the baseline material for Cs removal at Hanford, was inferior to both SuperLig 644 and R-F in terms of Cs loading and selectivity over sodium.

  11. Power Grab: How the National Education Association Is Betraying Our Children.

    ERIC Educational Resources Information Center

    Moo, G. Gregory

    Public education stands as a monolith in a world alive with fruitful change. Across the 50 states, the changes that parents and taxpayers want in public education are being misdirected and blocked by a powerful and self-serving union that has been taking control of public education since 1857. Evidence is presented in this book that the National…

  12. Will They Stay or Will They Go?: International STEM Students Are up for Grabs

    ERIC Educational Resources Information Center

    Han, Xueying; Appelbaum, Richard P.

    2016-01-01

    If current trends continue, international students will comprise half of U.S. science, technology, engineering, and mathematics (STEM) PhD graduates by 2020. The proportion of international PhD-level students on temporary visas to study STEM subjects in the United States has doubled over the past thirty years. Further, these students are much more…

  13. 40 CFR 90.423 - Exhaust gas analytical system; CVS grab sample.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... results and if approved in advance by the Administrator. (2) If CO instruments are used which are... § 90.317 and § 90.320.) (3) A CO instrument is considered to be essentially free of CO2 and water vapor... room temperature, produces an equivalent CO response, as measured on the most sensitive CO range,...

  14. Navigating the Current Job Market—Grab Hold of Your Future Now!12

    PubMed Central

    Durham, Holiday A.; McDermott, Ann Y.

    2013-01-01

    Although the U.S. federal government, the National Science Foundation, and other influential groups have called for American universities to educate and train more scientists, a recent article in the Washington Post and broadcasting on National Public Radio affirmed a harsh reality: there are too few jobs for today’s young scientists. Essentially, landing a job in science doesn’t just happen, you must prepare! The intent of this education track session, targeted to students, postdoctorates, junior faculty, and other early- to midcareer professionals was to provide insights on trends in the current job market and offer strategies and resources to be competitive. The session featured speakers representing different work environments, such as academia, industry, health care institutions, public relations, and entrepreneurial positions. PMID:24228196

  15. Visual Attention to Antismoking PSAs: Smoking Cues versus Other Attention-Grabbing Features

    ERIC Educational Resources Information Center

    Sanders-Jackson, Ashley N.; Cappella, Joseph N.; Linebarger, Deborah L.; Piotrowski, Jessica Taylor; O'Keeffe, Moira; Strasser, Andrew A.

    2011-01-01

    This study examines how addicted smokers attend visually to smoking-related public service announcements (PSAs) in adults smokers. Smokers' onscreen visual fixation is an indicator of cognitive resources allocated to visual attention. Characteristic of individuals with addictive tendencies, smokers are expected to be appetitively activated by…

  16. Stimulus Patching Budgets: Local Officials Crying Foul as Governors Grab for Aid

    ERIC Educational Resources Information Center

    McNell, Michele

    2009-01-01

    Desperate for cash to fill growing budget deficits, state governments are starting to tangle with federal and local officials over a $39.8 billion pot of economic-stimulus money that was designed to prop up the budgets of local school districts, but is increasingly being eyed as a patch for states' own financial woes. Vague language and loopholes…

  17. Land grab. More investors offer hospitals cash for their real estate as providers hunt for capital.

    PubMed

    Evans, Melanie

    2011-03-07

    More real estate investors are offering hospitals cash for real estate as providers tap into their assets for capital. But if REITs are banking on providers cashing in their real estate chips, that's not happening yet, says Mike O'Keefe, left, of Navigant Consulting. The capital flooding into healthcare real estate has met with a limited supply of sellers. "That's what's driving some of this consolidation," O'Keefe said.

  18. Grabbing the cat by the tail: manipulating molecules one by one.

    PubMed

    Bustamante, C; Macosko, J C; Wuite, G J

    2000-11-01

    Methods for manipulating single molecules are yielding new information about both the forces that hold biomolecules together and the mechanics of molecular motors. We describe here the physical principles behind these methods, and discuss their capabilities and current limitations.

  19. Teaching Outside the Box: How to Grab Your Students By Their Brains

    ERIC Educational Resources Information Center

    Johnson, LouAnne

    2005-01-01

    This book offers strategies to help both new teachers and seasoned veterans create dynamic classroom environments where students enjoy learning and teachers enjoy teaching. In addition to no-nonsense advice, checklists, and handouts, the book includes: (1) A step-by-step plan to make the first week of school a success; (2) Approaches for creating…

  20. Taking an Attention-Grabbing "Headlines First!" Approach to Engage Students in a Lecture Setting

    ERIC Educational Resources Information Center

    Harris, G. Keith; Stevenson, Clint; Joyner, Helen

    2015-01-01

    Let's face it. Traditional lectures do not consistently capture our students' attention, especially when they are PowerPoint-driven and lack student/instructor interaction. Most of us have had the unfortunate feeling that our students were not fully engaged in our lectures, despite hours of preparation on our part. This sense of "wasted"…

  1. Up for Grabs: The Gains and Prospects of First- and Second-Generation Young Adults

    ERIC Educational Resources Information Center

    Batalova, Jeanne; Fix, Michael

    2011-01-01

    Youth and young adults from immigrant families today represent one in four people in the United States between the ages of 16 and 26--up from one in five just 15 years ago. This population will assume a greater role as the US workforce ages, and how it fares in the classroom and in the workplace is of signal importance not just for these…

  2. Stimulus Patching Budgets: Local Officials Crying Foul as Governors Grab for Aid

    ERIC Educational Resources Information Center

    McNell, Michele

    2009-01-01

    Desperate for cash to fill growing budget deficits, state governments are starting to tangle with federal and local officials over a $39.8 billion pot of economic-stimulus money that was designed to prop up the budgets of local school districts, but is increasingly being eyed as a patch for states' own financial woes. Vague language and loopholes…

  3. Teaching Outside the Box: How to Grab Your Students By Their Brains

    ERIC Educational Resources Information Center

    Johnson, LouAnne

    2005-01-01

    This book offers strategies to help both new teachers and seasoned veterans create dynamic classroom environments where students enjoy learning and teachers enjoy teaching. In addition to no-nonsense advice, checklists, and handouts, the book includes: (1) A step-by-step plan to make the first week of school a success; (2) Approaches for creating…

  4. Up for Grabs: The Gains and Prospects of First- and Second-Generation Young Adults

    ERIC Educational Resources Information Center

    Batalova, Jeanne; Fix, Michael

    2011-01-01

    Youth and young adults from immigrant families today represent one in four people in the United States between the ages of 16 and 26--up from one in five just 15 years ago. This population will assume a greater role as the US workforce ages, and how it fares in the classroom and in the workplace is of signal importance not just for these…

  5. An Attention-Grabbing Approach to Introducing Students to Argumentation in Science

    ERIC Educational Resources Information Center

    Wojdak, Jeremy M.

    2010-01-01

    Argumentation and basic logic are foundations of scientific inquiry, and thus should be foundations of science education. Students often are uninterested in formal logic, and do not understand the connection to science or society. I describe a way to engage students in the study of argumentation and to help develop student's ability to critically…

  6. Grab 'em while They're Young: (Before They become Disillusioned and Cynical)!

    ERIC Educational Resources Information Center

    Broughton, Sally

    2010-01-01

    In the pre-Internet world of 1992, a new organization called Project Vote Smart used the highest technology available--a toll-free Voter's Research Hotline--to help voters get the facts about candidates and elected officials. Designed to give voters the tools they needed to "Vote Smart," the Hotline connected voters with questions to 50…

  7. "And Then a Huge, Huge Giant Grabbed Me!" Aggression in Children's Stories

    ERIC Educational Resources Information Center

    Bacigalupa, Chiara; Wright, Cheryl

    2009-01-01

    Children's stories, like children's play, often contain aggressive elements. This research study identified the themes and ideas that children between the ages of 2 and 6 years old included in 290 dictated stories with aggressive elements. Among the stories that contained aggressive elements, 42% were dictated by girls, and 57% were dictated by…

  8. Teaching Outside the Box: How to Grab Your Students by Their Brains, 2nd Edition

    ERIC Educational Resources Information Center

    Johnson, LouAnne

    2011-01-01

    This second edition of the bestselling book includes practical suggestions for arranging your classroom, talking to students, avoiding the misbehavior cycle, and making your school a place where students learn and teachers teach. The book also contains enlivening Q&A from teachers, letters from students, and tips for grading. This new edition has…

  9. Simulating potential water grabbing from large-scale land acquisitions in Africa}

    NASA Astrophysics Data System (ADS)

    Li Johansson, Emma; Fader, Marianela; Seaquist, Jonathan W.; Nicholas, Kimberly A.

    2017-04-01

    The potential high level of water appropriation in Africa by foreign companies might pose high socioenvironmental challenges, including overconsumption of water and conflicts and tensions over water resources allocation. We will present a study published recently in the Proceedings of the National Academy of Sciences11 of the USA, where we simulated green and blue water demand and crop yields of large-scale land acquisitions in several African countries. Green water refers to precipitation stored in soils and consumed by plants through evapotranspiration, while blue water is extracted from rivers, lakes, aquifers, and dams. We simulated seven irrigation scenarios, and compared these data with two baseline scenarios of staple crops representing previous water demand. The results indicate that the green and blue water use is 39% and 76-86% greater, respectively, for crops grown on acquired land compared with the baseline of common staple crops, showing that land acquisitions substantially increase water demands. We also found that most land acquisitions are planted with crops such as sugarcane, jatropha, and eucalyptus, that demand volumes of water >9,000 m3ṡha-1. And even if the most efficient irrigation systems were implemented, 18% of the land acquisitions, totaling 91,000 ha, would still require more than 50% of water from blue water sources.

  10. Hazardous Asteroids: Cloaking STEM Skills Training within an Attention-Grabbing Science/Math Course

    NASA Astrophysics Data System (ADS)

    Ryan, Eileen V.; Ryan, William H.

    2015-11-01

    A graduate-level course was designed and taught during the summer months from 2009 - 2015 in order to contribute to the training and professional development of K-12 teachers residing in the Southwest. The teachers were seeking Master’s degrees via the New Mexico Institute of Mining and Technology’s (NMT’s) Masters of Science Teaching (MST) program, and the course satisfied a science or math requirement. The MST program provides opportunities for in-service teachers to enhance their content backgrounds in science, mathematics, engineering, and technology (SMET). The ultimate goal is to assist teachers in gaining knowledge that has direct application in the classroom.The engaging topic area of near-Earth object (NEO) characterization studies was used to create a fun and exciting framework for mastering basic skills and concepts in physics and astronomy. The objective was to offer a class that had the appropriate science rigor (with an emphasis on mathematics) within a non-threatening format. The course, entitled “Hazardous Asteroids”, incorporates a basic planetary physics curriculum, with challenging laboratories that include a heavy emphasis on math and technology. Since the authors run a NASA-funded NEO research and follow-up program, also folded into the course is the use of the Magdalena Ridge Observatory’s 2.4-meter telescope so participants can take and reduce their own data on a near-Earth asteroid.In exit assessments, the participants have given the course excellent ratings for design and implementation, and the overall degree of satisfaction was high. This validates that a well-constructed (and rigorous) course can be effective in receptively reaching teachers in need of basic skills refreshment. Many of the teachers taking the course were employed in school districts serving at-risk or under-prepared students, and the course helped provide them with the confidence vital to developing new strategies for successful teaching.

  11. An Attention-Grabbing Approach to Introducing Students to Argumentation in Science

    ERIC Educational Resources Information Center

    Wojdak, Jeremy M.

    2010-01-01

    Argumentation and basic logic are foundations of scientific inquiry, and thus should be foundations of science education. Students often are uninterested in formal logic, and do not understand the connection to science or society. I describe a way to engage students in the study of argumentation and to help develop student's ability to critically…

  12. Children's Performance on the "Give X" Task: A Microgenetic Analysis of "Counting" and "Grabbing" Behaviour

    ERIC Educational Resources Information Center

    Chetland, Elizabeth; Fluck, Michael

    2007-01-01

    Children's understanding of the cardinal significance of counting is often assessed by the "give x" task, in which they are categorized as "counters" or "grabbers". Previous research indicates a sudden stage-like shift, implying insight into a principle. Employing a microgenetic approach, the present study was…

  13. Teaching Outside the Box: How to Grab Your Students by Their Brains, 2nd Edition

    ERIC Educational Resources Information Center

    Johnson, LouAnne

    2011-01-01

    This second edition of the bestselling book includes practical suggestions for arranging your classroom, talking to students, avoiding the misbehavior cycle, and making your school a place where students learn and teachers teach. The book also contains enlivening Q&A from teachers, letters from students, and tips for grading. This new edition has…

  14. Bispecific antibodies: an innovative arsenal to hunt, grab and destroy cancer cells.

    PubMed

    Grandjenette, Cindy; Dicato, Mario; Diederich, Marc

    2015-01-01

    Targeted cellular immunotherapy with bifunctional antibodies (bsAbs) has emerged as a promising therapeutic approach for cancer over the last two decades. Progress in antibody engineering has led to the generation of many different types of antibody-derived entities that display at least two binding specificities. Most bsAbs consist of large IgG-like proteins with multiple antigen-binding regions containing Fc parts or smaller entities without Fc. BsAbs have the potential to engage effector cells of the immune system, thereby overcoming some of the immune response escape mechanisms of tumor cells. Preclinical and clinical trials of various bsAb constructs have demonstrated impressive results in terms of immune effector cell retargeting and induction of efficient anti-tumor responses. This review provides an overview of the established bsAbs focusing on improvements in format and design as well as the mechanisms of action of the most promising candidates and describes the results of the most recent clinical studies.

  15. Motor and Sensory Set Effects on Grab-Start Times of Champion Female Swimmers

    ERIC Educational Resources Information Center

    Krahenbuhl, Gary S.; And Others

    1975-01-01

    This study tested the prediction that enforced motor set results in longer reaction, movement, and response times than does enforced sensory set for swimmers. The data supports only the prediction tested for response time. (RC)

  16. Grab 'em while They're Young: (Before They become Disillusioned and Cynical)!

    ERIC Educational Resources Information Center

    Broughton, Sally

    2010-01-01

    In the pre-Internet world of 1992, a new organization called Project Vote Smart used the highest technology available--a toll-free Voter's Research Hotline--to help voters get the facts about candidates and elected officials. Designed to give voters the tools they needed to "Vote Smart," the Hotline connected voters with questions to 50…

  17. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Requirements for Vessels Which Have Their Keel Laid or Are at a Similar Stage of Construction on or After or Which Undergo a Major Conversion Completed on or...

  18. 46 CFR 28.410 - Deck rails, lifelines, storm rails, and hand grabs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Requirements for Vessels Which Have Their Keel Laid or Are at a Similar Stage of Construction on or After or Which Undergo a Major Conversion Completed on or...

  19. Crabs grab strongly depending on mechanical advantages of pinching and disarticulation of chela.

    PubMed

    Fujiwara, Shin-Ichi; Kawai, Hiroki

    2016-10-01

    A small morphological variation of an organ may cause a major change of its function in animal evolution. The function of decapod chela varies considerably among taxa, between sex, and even within an individual, but also retains a simple mechanism of motion. Therefore, the decapod chela is a suitable structure to study the evolutionary process of functional diversifications, although the relationship of form and function is inadequately understood, yet. We estimated the mechanical advantages of pinching and passive disarticulation resistance, and chela size relative to the carapace in 317 chelae of 168 decapod specimens, and compared these indices with the functions of each chela. Our study revealed that mechanical advantages of pinching efficiency and passive disarticulation resistance were greatest in shell-crushing chelae, followed by gripping and pinching chelae, whereas the chela size relative to the carapace was not related to differences among these functions. We also found that the chelae are designed to retain the ratio between depth and width of the proximal dactylus. In the evolutionary process of decapods, the diversifications of chela functions were accompanied by the diversifications of the mechanical advantages, and played an essential role in their ecological diversification. J. Morphol. 277:1259-1272, 2016. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

  20. Hold, grasp, clutch or grab: consumer grip choices during food container opening.

    PubMed

    Rowson, J; Yoxall, A

    2011-07-01

    Society is ageing and sadly that ageing leads to a host of issues, not least a society in which the majority are likely to have some loss of strength and dexterity. This can lead to complications in undertaking everyday tasks such as using transport, bathing or even handling and opening food. Packaging has to provide a multitude of services; to protect and preserve the product, to provide information to the consumer and not least to allow access to the contents. This access to packaging--or 'openability'--has become a significant issue for designers and manufacturers with the change in demographics as described above. Understanding the choices consumers make in how they manipulate packaging can help designers produce packaging that is more able to meet the requirements of modern society. Studies previously undertaken by the authors showed that consumers did use different grips when opening packaging and that certain grips were theoretically more comfortable and stronger than others. This paper outlines a further study whereby consumers were asked to apply the most common grips to a specially designed torque measuring device. Details were taken about the consumers: age, gender, occupation, hand size, plus their preferred grip choice for packaging of this type. The study showed that typically women chose a grip that maximised their opportunity of opening the closure and that this grip choice was more limited than that available for men. This has implications for inclusive design of many everyday products.

  1. Taking an Attention-Grabbing "Headlines First!" Approach to Engage Students in a Lecture Setting

    ERIC Educational Resources Information Center

    Harris, G. Keith; Stevenson, Clint; Joyner, Helen

    2015-01-01

    Let's face it. Traditional lectures do not consistently capture our students' attention, especially when they are PowerPoint-driven and lack student/instructor interaction. Most of us have had the unfortunate feeling that our students were not fully engaged in our lectures, despite hours of preparation on our part. This sense of "wasted"…

  2. Standard-B auto grab sampler hydrogen monitoring system, Acceptance Test Report

    SciTech Connect

    Lott, D.T.

    1995-05-18

    Project W-369, Watch List Tank Hydrogen Monitors, installed a Standard-C Hydrogen Monitoring System (SHMS) on the Flammable gas waste tank AN-104. General Support Projects (8K510) was support by Test Engineering (7CH30) in the performance of the Acceptance Test Procedures (ATP) to qualify the SHMS cabinets on the waste tank. The ATP`s performance was controlled by Tank Farm work package. This completed ATP is transmitted by EDT-601748 as an Acceptance Test Report (ATR) in accordance with WHC-6-1, EP 4.2 and EP 1.12.

  3. Process Control Plan for Tank 241-SY-101 Surface Level Rise Remediation

    SciTech Connect

    ESTEY, S.D.

    1999-09-28

    The tank 241-SY-101 transfer system was conceived and designed to address the immediate needs presented by rapidly changing waste conditions in tank 241-SY-101. Within the last year or so, the waste in this tank has exhibited unexpected behavior (Rassat et al. 1999) in the form of rapidly increasing crust growth. This growth has been brought about by a rapidly increasing rate of gas entrapment within the crust. It has been conceived that the lack of crust agitation beginning upon the advent of mixer pump operations may have set-up a more consolidated, gas impermeable barrier when compared to a crust regularly broken up by the prior buoyant displacement events within the tank. As a result, a series of level-growth remediation activities have been developed for tank 241-SY-101. The initial activities are also known as near-term crust mitigation. The first activity of near-term mitigation is to perform the small transfer of convective waste from tank 241-SY-101 into tank 241-SY-102. A 100 kgal transfer represents about a 10% volume reduction allowing a 10% water in-tank dilution. Current thinking holds that this should be enough to dissolve nitrite solids in the crust and perhaps largely eliminate gas retention problem in the crust (Raymond 1999).

  4. Chemical composition of Hanford Tank SY-102

    SciTech Connect

    Birnbaum, E.; Agnew, S.; Jarvinen, G.; Yarbro, S.

    1993-12-01

    The US Department of Energy established the Tank Waste Remediation System (TWRS) to safely manage and dispose of the radioactive waste, both current and future, stored in double-shell and single-shell tanks at the Hanford sites. One major program element in TWRS is pretreatment which was established to process the waste prior to disposal using the Hanford Waste Vitrification Plant. In support of this program, Los Alamos National Laboratory has developed a conceptual process flow sheet which will remediate the entire contents of a selected double-shelled underground waste tank, including supernatant and sludge, into forms that allow storage and final disposal in a safe, cost-effective and environmentally sound manner. The specific tank selected for remediation is 241-SY-102 located in the 200 West Area. As part of the flow sheet development effort, the composition of the tank was defined and documented. This database was built by examining the history of liquid waste transfers to the tank and by performing careful analysis of all of the analytical data that have been gathered during the tank`s lifetime. In order to more completely understand the variances in analytical results, material and charge balances were done to help define the chemistry of the various components in the tank. This methodology of defining the tank composition and the final results are documented in this report.

  5. Waste segregation analysis for salt well pumping in the 200 W Area -- Task 3.4

    SciTech Connect

    Reynolds, D.A.

    1995-04-28

    There is an estimated 7 million liters (1.9 million gallons) of potentially complexed waste that need to be pumped from single-shell tanks (SST) in the 200 West Area. This represents up to 40% of the salt well liquor that needs to be pumped in the 200 West Area. There are three double-shell (DST) tanks in the 241-SY tank farm in the 200 West Area. Tank 241-SY-101 is full and not usable. Tank 241-SY-102 has a transuranic (TRU) sludge in the bottom. Current rules prohibit mixing complexed waste with TRU waste. Tank 241-SY-103 has three major problems. First, 241-SY-103 is on the Flammable Watch list. Second, adding waste to tank 241-SY-103 has the potential for an episodic release of hydrogen gas. Third, 241-SY-103 will not hold all of the potentially complexed waste from the SSTs. This document looks at more details regarding the salt well pumping of the 200 West Area tank farm. Some options are considered but it is beyond the scope of this document to provide an in-depth study necessary to provide a defensible solution to the complexed waste problem.

  6. Set point calculations for RAPID project

    SciTech Connect

    HICKMAN, G.L.

    1999-08-27

    The Respond and Pump in Days (RAPID) project was initiated to pump part of the contents of tank 241-SY-101 into tank 241-SY-102. This document establishes the basis for all set points and ranges used in the RAPID project. There are 23 instrument and/or control loops utilized by the RAPID project. These range from the simple indication loop with two components to complex indication, control, and alarm loops with up to eight components. Several loops include safety class elements. This document is intended to describe the loops in full and to provide the basis for each of the element setpoints, ranges and accuracies identified in the RAPID project Master Equipment List (MEL). These values are developed in two steps. First, the base value is identified with reference to the supporting document providing that value. Second, a spreadsheet calculation is performed on each element and loop, utilizing a standard methodology described below, that takes into account known and suspected variance in output and establishes the actual setpoint used on a given element. The results of the spreadsheet are reported directly in this document.

  7. Hanford Double-Shell Tank Extent-of-Condition Construction Review

    SciTech Connect

    Venetz, Theodore J.; Johnson, Jeremy M.; Gunter, Jason R.; Barnes, Travis J.; Washenfelder, Dennis J.; Boomer, Kayle D.

    2013-11-14

    During routine visual inspections of Hanford double-shell waste tank 241-AY-102 (AY-102), anomalies were identified on the annulus floor which resulted in further evaluations. Following a formal leak assessment in October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of AY-102 was leaking. The formal leak assessment, documented in RPP-ASMT-53793,Tank 241-AY-102 Leak Assessment Report, identified first-of-a-kind construction difficulties and trial-and-error repairs as major contributing factors to tank failure. To determine if improvements in double-shell tank (DST) construction occurred after construction of tank AY-102, a detailed review and evaluation of historical construction records were performed for the first three DST tank farms constructed, which included tanks 241-AY-101, 241-AZ-101, 241-AZ-102, 241-SY-101, 241-SY-102, and 241-SY-103. The review for these six tanks involved research and review of dozens of boxes of historical project documentation. These reviews form a basis to better understand the current condition of the three oldest Hanford DST farms. They provide a basis for changes to the current tank inspection program and also provide valuable insight into future tank use decisions. If new tanks are constructed in the future, these reviews provide valuable "lessons-learned" information about expected difficulties as well as construction practices and techniques that are likely to be successful.

  8. Grab them by the Nose and Kick them in the Pants: Patton on Combined Arms Operational Maneuver

    DTIC Science & Technology

    2010-04-23

    task organization that included air liaison officers and co -located aviation headquarters that coordinated close air support and interdiction, to...combined arms operational maneuver was the Eifel sector of the Siegfried line which was bisected by the Moselle, Our, and Sauer Rivers. As Patton...lines in favor of a "broad front" strategy .. Patton was forced to play an "active defense" role in the Eifel sector and wouldn’t break out until

  9. Grabbing the Air Force by the Tail: Applying Strategic Cost Analytics to Understand and Manage Indirect Cost Behavior

    DTIC Science & Technology

    2015-09-17

    tail activities in order to manage costs, and v) how to provide a decision support tool for tooth-to-tail policy impact analysis. 1.2 Research...value chain for cost management purposes. The intent of the chapter is to introduce the reader to strategic cost analytics and provide a comprehensive ...than a comprehensive understanding of how data and advanced analytics are applied across the entire organization for strategic cost management purposes

  10. Seafloor video footage and still-frame grabs from U.S. Geological Survey cruises in Hawaiian nearshore waters

    USGS Publications Warehouse

    Gibbs, Ann E.; Cochran, Susan A.; Tierney, Peter W.

    2013-01-01

    Underwater video footage was collected in nearshore waters (<60-meter depth) off the Hawaiian Islands from 2002 to 2011 as part of the U.S. Geological Survey (USGS) Coastal and Marine Geology Program's Pacific Coral Reef Project, to improve seafloor characterization and for the development and ground-truthing of benthic-habitat maps. This report includes nearly 53 hours of digital underwater video footage collected during four USGS cruises and more than 10,200 still images extracted from the videos, including still frames from every 10 seconds along transect lines, and still frames showing both an overview and a near-bottom view from fixed stations. Environmental Systems Research Institute (ESRI) shapefiles of individual video and still-image locations, and Google Earth kml files with explanatory text and links to the video and still images, are included. This report documents the various camera systems and methods used to collect the videos, and the techniques and software used to convert the analog video tapes into digital data in order to process the images for optimum viewing and to extract the still images, along with a brief summary of each survey cruise.

  11. A Massive Power Grab from Local Communities: The Real Significance of the 2010 White Paper and the 2011 Education Bill

    ERIC Educational Resources Information Center

    Chitty, Clyde

    2011-01-01

    This article looks at the Coalition Government's recent White Paper and Education Bill whose chief effect will be to further destabilise the schools system in the United Kingdom. The new Bill stipulates that if a new school is needed in an area, proposals for an Academy or a Free School must be prioritised before any other bid can be considered.…

  12. Determination of ring correction factors for leaded gloves used in grab sampling activities at Hanford tank farms

    SciTech Connect

    RATHBONE, B.A.

    1999-06-24

    This study evaluates the effectiveness of lead lined gloves in reducing extremity dose from two sources specific to tank waste sampling activities: (1) sludge inside glass sample jars and (2) sludge as thin layer contamination on the exterior surface of sample jars. The response of past and present Hanford Extremity Dosimeters (ring) designs under these conditions is also evaluated.

  13. Engineering work plan and design basis for 241-SY ventilation improvements

    SciTech Connect

    Andersen, J.A.

    1997-05-19

    There are three tanks in the 241-SY tank farm. Tank 241-SY101 and 241-SY-103 are flammable gas watch list tanks. Tank 241-SY-102 is included in the ventilation improvement process in an effort to further control air flow in the tank farm. This tank farm has only one outlet ventilation port for all three tanks. Flammable gas is released (may be steady and/or periodic) from the waste in the primary tank vapor space. The gas is removed from the tank by an active ventilation system. However, maintaining consistent measurable flow through the tank can be problematic due to the poor control capabilities of existing equipment. Low flow through the tank could allow flammable gas to build up in the tank and possibly exceed the lower flammability limit (LFL), prevent the most rapid removal of flammable gas from the tank after a sudden gas release, and/or cause high vacuum alarms to sound. Using the inlet and outlet down stream butterfly valves performs the current method of controlling flow in tank farm 241-SY. A filter station is installed on the inlet of each tank, but controlling air flow with its 12 inch butterfly valve is difficult. There is also in-leakage through pump and valve pits. Butterfly valves on the downstream side of each tank could also be used to control air flow. However, their large size and the relatively low air velocity make this control method also ineffective. The proposed method of optimizing tank air flow and pressure control capability is to install an air flow controller on the inlet of each existing filter station in SY farm, and seal as best as practical all other air leakage paths. Such air flow controllers have been installed on 241-AN and 241-AW tanks (see drawing H-2-85647).

  14. Pretreatment of Plutonium Finishing Plant (PFP) sludge: Report for the period October 1990--March 1992

    SciTech Connect

    Lumetta, G.J.; Swanson, J.L.

    1993-04-01

    The current mission of the US Department of Energy`s Hanford Site is one of environmental restoration. A major task within this mission is the disposal of large volumes of high-level wastes (HLW) that are stored in underground tanks on the site. Under the current planning assumptions, all high-level tank waste will be vitrified as borosilicate glass and then disposed of in a geologic repository. The costs associated with this disposal scheme are very high. Thus, methods to reduce the volume of glass required to vitrify these wastes are currently being investigated. Plutonium Finishing Plant (PFP) sludge is a unique transuranic waste that is stored in tank 241- SY-102 on the Hanford site. As the name implies, the bulk of this material consists of waste from operations at the Plutonium Finishing Plant; but, other wastes have also been added (e.g., wastes from decontamination activities). Because the quantities of plutonium and americium in the PFP sludge are greater than 100 nCi/g, this sludge must be handled as a HLW. Approximately 6000 glass canisters would result from vitrifying this waste directly. Sludge washing would reduce the required number of canisters to {approximately}2500, with the volume of glass being driven by the low allowable concentration limit for Cr in the vitrification plant feed. The cost of production and subsequent geologic disposal of each canister of glass is expected to be $0.5 M to $1 M. Thus, an economic incentive exists to develop methods of pretreating the sludge to reduce the number of glass canisters needed to contain the final vitrified product.

  15. Pretreatment of Plutonium Finishing Plant (PFP) sludge: Report for the period October 1990--March 1992

    SciTech Connect

    Lumetta, G.J.; Swanson, J.L.

    1993-04-01

    The current mission of the US Department of Energy's Hanford Site is one of environmental restoration. A major task within this mission is the disposal of large volumes of high-level wastes (HLW) that are stored in underground tanks on the site. Under the current planning assumptions, all high-level tank waste will be vitrified as borosilicate glass and then disposed of in a geologic repository. The costs associated with this disposal scheme are very high. Thus, methods to reduce the volume of glass required to vitrify these wastes are currently being investigated. Plutonium Finishing Plant (PFP) sludge is a unique transuranic waste that is stored in tank 241- SY-102 on the Hanford site. As the name implies, the bulk of this material consists of waste from operations at the Plutonium Finishing Plant; but, other wastes have also been added (e.g., wastes from decontamination activities). Because the quantities of plutonium and americium in the PFP sludge are greater than 100 nCi/g, this sludge must be handled as a HLW. Approximately 6000 glass canisters would result from vitrifying this waste directly. Sludge washing would reduce the required number of canisters to [approximately]2500, with the volume of glass being driven by the low allowable concentration limit for Cr in the vitrification plant feed. The cost of production and subsequent geologic disposal of each canister of glass is expected to be $0.5 M to $1 M. Thus, an economic incentive exists to develop methods of pretreating the sludge to reduce the number of glass canisters needed to contain the final vitrified product.

  16. Double-Shell Tank Visual Inspection Changes Resulting from the Tank 241-AY-102 Primary Tank Leak

    SciTech Connect

    Girardot, Crystal L.; Washenfelder, Dennis J.; Johnson, Jeremy M.; Engeman, Jason K.

    2013-11-14

    As part of the Double-Shell Tank (DST) Integrity Program, remote visual inspections are utilized to perform qualitative in-service inspections of the DSTs in order to provide a general overview of the condition of the tanks. During routine visual inspections of tank 241-AY-102 (AY-102) in August 2012, anomalies were identified on the annulus floor which resulted in further evaluations. In October 2012, Washington River Protection Solutions, LLC determined that the primary tank of AY-102 was leaking. Following identification of the tank AY-102 probable leak cause, evaluations considered the adequacy of the existing annulus inspection frequency with respect to the circumstances of the tank AY-102 1eak and the advancing age of the DST structures. The evaluations concluded that the interval between annulus inspections should be shortened for all DSTs, and each annulus inspection should cover > 95 percent of annulus floor area, and the portion of the primary tank (i.e., dome, sidewall, lower knuckle, and insulating refractory) that is visible from the annulus inspection risers. In March 2013, enhanced visual inspections were performed for the six oldest tanks: 241-AY-101, 241-AZ-101,241-AZ-102, 241-SY-101, 241-SY-102, and 241-SY-103, and no evidence of leakage from the primary tank were observed. Prior to October 2012, the approach for conducting visual examinations of DSTs was to perform a video examination of each tank's interior and annulus regions approximately every five years (not to exceed seven years between inspections). Also, the annulus inspection only covered about 42 percent of the annulus floor.

  17. Thermal and combined thermal and radiolytic reactions involving nitrous oxide, hydrogen, and nitrogen in the gas phase; comparison of gas generation rates in supernate and solid fractions of Tank 241-SY-101 simulated waste

    SciTech Connect

    Bryan, S.A.; Pederson, L.R.

    1995-03-01

    This report summarizes progress made in evaluating me by which flammable gases are generated in Hanford double-shell tank wastes, based on the results of laboratory tests using simulated waste mixtures. Work described in this report. was conducted at Pacific Northwest Laboratory (PNL) for the Flammable Gas Safety Project, the purpose of which is to develop information needed to support Westinghouse Hanford Company (WHC) in their efforts to ensure the safe interim storage of wastes at the Hanford Site. This work is related to gas generation studies being performed at Georgia Institute of Technology (GIT), under subcontract to PNL, using simulated wastes, and to studies being performed at VMC using actual wastes.

  18. Final Environmental Assessment for Proposed Enhanced Testing and Associated Training Use of the Giant Reusable Air Blast Simulator (GRABS) Site at Kirtland Air Force Base, New Mexico

    DTIC Science & Technology

    2015-02-01

    ingest the bacteria , where it produces proteins that react with the specific lining of the caterpillar’s gut and paralyzes the digestive system. The...susceptible in some way to B.t. (2). Bacteria are primitive one-celled organisms, which belong to a group of organisms called prokaryotes. Prokaryotes are... fermentation broth, moist bacterial cakes, waste materials, and final powder created during the commercial production of B.t. (2). There is no

  19. Some insights into analytical bias involved in the application of grab sampling for volatile organic compounds: a case study against used Tedlar bags.

    PubMed

    Ghosh, Samik; Kim, Ki-Hyun; Sohn, Jong Ryeul

    2011-01-01

    In this study, we have examined the patterns of VOCs released from used Tedlar bags that were once used for the collection under strong source activities. In this way, we attempted to account for the possible bias associated with the repetitive use of Tedlar bags. To this end, we selected the bags that were never heated. All of these target bags were used in ambient temperature (typically at or below 30°C). These bags were also dealt carefully to avoid any mechanical abrasion. This study will provide the essential information regarding the interaction between VOCs and Tedlar bag materials as a potential source of bias in bag sampling approaches.

  20. Grab a Cup, Fill It Up! An Intervention to Promote the Convenience of Drinking Water and Increase Student Water Consumption During School Lunch

    PubMed Central

    Kenney, Erica L.; Gortmaker, Steven L.; Carter, Jill E.; Howe, M. Caitlin W.; Reiner, Jennifer F.; Cradock, Angie L.

    2017-01-01

    Objectives We evaluated a low-cost strategy for schools to improve the convenience and appeal of drinking water. Methods We conducted a group-randomized, controlled trial in 10 Boston, Massachusetts, schools in April through June 2013 to test a cafeteria-based intervention. Signage promoting water and disposable cups were installed near water sources. Mixed linear regression models adjusting for clustering evaluated the intervention impact on average student water consumption over 359 lunch periods. Results The percentage of students in intervention schools observed drinking water during lunch nearly doubled from baseline to follow-up compared with controls (+9.4%; P < .001). The intervention was associated with a 0.58-ounce increase in water intake across all students (P < .001). Without cups, children were observed drinking 2.4 (SE = 0.08) ounces of water from fountains; with cups, 5.2 (SE = 0.2) ounces. The percentage of intervention students observed with sugar-sweetened beverages declined (−3.3%; P < .005). Conclusions The current default of providing water through drinking fountains in cafeterias results in low water consumption. This study shows that an inexpensive intervention to improve drinking water’s convenience by providing cups can increase student water consumption. PMID:26180950

  1. Grab a Cup, Fill It Up! An Intervention to Promote the Convenience of Drinking Water and Increase Student Water Consumption During School Lunch.

    PubMed

    Kenney, Erica L; Gortmaker, Steven L; Carter, Jill E; Howe, M Caitlin W; Reiner, Jennifer F; Cradock, Angie L

    2015-09-01

    We evaluated a low-cost strategy for schools to improve the convenience and appeal of drinking water. We conducted a group-randomized, controlled trial in 10 Boston, Massachusetts, schools in April through June 2013 to test a cafeteria-based intervention. Signage promoting water and disposable cups were installed near water sources. Mixed linear regression models adjusting for clustering evaluated the intervention impact on average student water consumption over 359 lunch periods. The percentage of students in intervention schools observed drinking water during lunch nearly doubled from baseline to follow-up compared with controls (+ 9.4%; P < .001). The intervention was associated with a 0.58-ounce increase in water intake across all students (P < .001). Without cups, children were observed drinking 2.4 (SE = 0.08) ounces of water from fountains; with cups, 5.2 (SE = 0.2) ounces. The percentage of intervention students observed with sugar-sweetened beverages declined (-3.3%; P < .005). The current default of providing water through drinking fountains in cafeterias results in low water consumption. This study shows that an inexpensive intervention to improve drinking water's convenience by providing cups can increase student water consumption.

  2. Some Insights into Analytical Bias Involved in the Application of Grab Sampling for Volatile Organic Compounds: A Case Study against Used Tedlar Bags

    PubMed Central

    Ghosh, Samik; Kim, Ki-Hyun; Sohn, Jong Ryeul

    2011-01-01

    In this study, we have examined the patterns of VOCs released from used Tedlar bags that were once used for the collection under strong source activities. In this way, we attempted to account for the possible bias associated with the repetitive use of Tedlar bags. To this end, we selected the bags that were never heated. All of these target bags were used in ambient temperature (typically at or below 30°C). These bags were also dealt carefully to avoid any mechanical abrasion. This study will provide the essential information regarding the interaction between VOCs and Tedlar bag materials as a potential source of bias in bag sampling approaches. PMID:22235175

  3. A comparison of the use of vacuum metal deposition versus cyanoacrylate fuming for visualisation of fingermarks and grab impressions on fabrics.

    PubMed

    Fraser, Joanna; Deacon, Paul; Bleay, Stephen; Bremner, David H

    2014-03-01

    Both vacuum metal deposition (VMD) and cyanoacrylate fuming (CAF) are techniques used to visualise latent fingermarks on smooth non-porous surfaces such as plastic and glass. VMD was initially investigated in the 1970s as to its effectiveness for visualising prints on fabrics, but was abandoned when radioactive sulphur dioxide was found to be more effective. However, interest in VMD was resurrected in the 1990s when CAF was also used routinely. We now report on studies to determine whether VMD or CAF is the more effective technique for the detection of marks on fabrics. Four different fabrics, nylon, polyester, polycotton and cotton, were utilised during this study, along with 15 donors who ranged in their age and ability to leave fingermarks, from good to medium to poor, thus reflecting the general population. Once samples were collected they were kept for a determined time (1, 2, 3, 4, 5, 6, 7, 14, 21 or 28 days) and then treated using either the gold and zinc metal VMD process or standard cyanoacrylate fuming. The smoother fabrics, such as nylon, consistently produced greater ridge detail whereas duller fabrics, like cotton tended only to show empty prints and impressions of where the fabric had been touched, rather than any ridge details. The majority of fabrics did however allow the development of touch marks that could be targeted for DNA taping which potentially could lead to a DNA profile. Of the two techniques VMD was around 5 times more effective than CAF, producing a greater amount of ridge detail, palmar flexion creases and target areas on more samples and fabrics. Copyright © 2013 Forensic Science Society. Published by Elsevier Ireland Ltd. All rights reserved.

  4. Project W-320, 241-C-106 sluicing: Piping calculations. Volume 8

    SciTech Connect

    Bailey, J.W.

    1998-07-24

    This supporting document has been prepared to make the FDNW calculations for Project W-320 readily retrievable. The objective of this calculation is to perform the hydraulic analysis on the slurry line and the supernate line for W-320. This calculation will use the As-Built conditions of the slurry line and the supernate line. Booster Pump Curves vs System Curves shall be generated for the supernate system and the slurry system.

  5. Contaminated Sediments at Navy Facilities: Policy, Guidance, and Characterization

    DTIC Science & Technology

    2002-12-01

    are usually collected with a grab sampler such as a box corer, an Eckman grab, a Ponar grab, or a Van Veen grab. Sediment cores can be collecting...7324 hillwj@efdsouth.navfac.navy.mil Chris Leadon (SWDIV) at Ph. (619) 532-2584 leadoncj@efdsw.navfac.navy.mil

  6. Zero tolerance. With health IT money up for grabs, many EHR vendors are offering financing deals to attract business. But, just like shopping for a car, experts warn about reading the fine print before buying.

    PubMed

    Blesch, Gregg; Carlson, Joe

    2010-03-01

    The government, by way of federal stimulus incentives, wants to boost the use of electronic health records. However, physician practices must be careful about low or no-interest offers when buying an EHR system, experts say. "The ultimate power a buyer has--I use the analogy of buying a car--is the ability to say 'no thanks' and walk out of the showroom", says Steven Fox, left, a partner at Post & Schell.

  7. Into the Curriculum. Reading/Language Arts: Literacy Promotion-Who Wants To Be a Millionaire?; Science: Spiders; Social Studies: American Symbols; Social Studies: Arts: Grab the Duct Tape!

    ERIC Educational Resources Information Center

    Bikhazi, Cristi; Payne, Linda M.; Barwick, Martha

    2002-01-01

    Provides four fully developed library media activities that are designed for use with specific curriculum units in reading, language arts, science, and social studies. Library media skills, curriculum objectives, grade levels, instructional roles, procedures, evaluation, and follow-up are described for each activity. (LRW)

  8. Retagging Identifies Dendritic Cell-specific Intercellular Adhesion Molecule-3 (ICAM3)-grabbing Non-integrin (DC-SIGN) Protein as a Novel Receptor for a Major Allergen from House Dust Mite*

    PubMed Central

    Emara, Mohamed; Royer, Pierre-Joseph; Mahdavi, Jafar; Shakib, Farouk; Ghaemmaghami, Amir M.

    2012-01-01

    Dendritic cells (DCs) have been shown to play a key role in the initiation and maintenance of immune responses to microbial pathogens as well as to allergens, but the exact mechanisms of their involvement in allergic responses and Th2 cell differentiation have remained elusive. Using retagging, we identified DC-SIGN as a novel receptor involved in the initial recognition and uptake of the major house dust mite and dog allergens Der p 1 and Can f 1, respectively. To confirm this, we used gene silencing to specifically inhibit DC-SIGN expression by DCs followed by allergen uptake studies. Binding and uptake of Der p 1 and Can f 1 allergens was assessed by ELISA and flow cytometry. Intriguingly, our data showed that silencing DC-SIGN on DCs promotes a Th2 phenotype in DC/T cell co-cultures. These findings should lead to better understanding of the molecular basis of allergen-induced Th2 cell polarization and in doing so paves the way for the rational design of novel intervention strategies by targeting allergen receptors on innate immune cells or their carbohydrate counterstructures on allergens. PMID:22205703

  9. Hemoglobin stimulates mononuclear leukocytes to release interleukin-8 and tumor necrosis factor alpha.

    PubMed

    McFaul, S J; Bowman, P D; Villa, V M; Gutierrez-Ibanez, M J; Johnson, M; Smith, D

    1994-11-01

    Incubation of human mononuclear leukocytes (MNL) with human stroma-free hemolysate (SFH), purified adult hemoglobin Ao (HbAo), and oxidized HbAo (METHb) caused MNL to release compounds into the supernate that mediated neutrophil (polymorphonuclear leukocytes, PMN) chemotaxis and PMN adherence to human umbilical vein endothelial cells (HUVEC). Chemotaxis and PMN adherence to HUVEC were reduced significantly when supernates were preincubated with neutralizing antibodies to interleukin-8 (IL-8) and tumor necrosis factor alpha (TNF-alpha), respectively, suggesting that IL-8 and TNF-alpha played significant roles in mediating these activities. Greatest chemotactic activity was observed in supernates of MNL treated with HbAo; while greatest PMN/endothelial cell (EC) adherence activity was observed in supernates of MNL treated with METHb. Furthermore, PMN/EC adherence activity was a function of METHb content in each hemoglobin solution. PMN chemotaxis, PMN adherence to HUVEC, and cytokine release increased as a function of increasing incubation time. Chemotactic activity was detected in HbAo-treated and METHb-treated MNL supernates after incubation for 6 hours and was maximal by 10 hours. IL-8 was detected in both HbAo and METHb-MNL supernates by 4 hours. PMN/EC adherence activity was detected in HbAo-MNL supernates at 10 hours and in METHb-MNL supernates at 4 hours. TNF-alpha was detected in METHb and HbAo-MNL supernates at 4 and 12 hours, respectively. These results suggest that hemoglobin solutions stimulate MNL to release IL-8 and TNF-alpha in quantities sufficient to induce PMN chemotaxis and PMN adherence to HUVEC. This is a US government work. There are no restrictions on its use.

  10. Treatment of radioactive wastes from DOE underground storage tanks

    SciTech Connect

    Collins, J.L.; Egan, B.Z.; Spencer, B.B.; Chase, C.W.; Anderson, K.K.; Bell, J.T.

    1994-06-01

    Bench-scale batch tests have been conducted with sludge and supernate tank waste from the Melton Valley Storage Tank (MVST) Facility at Oak Ridge National Laboratory (ORNL) to evaluate separation technology process for use in a comprehensive sludge processing flow sheet as a means of concentrating the radionuclides and reducing the volumes of storage tank waste at national sites for final disposal. This paper discusses the separation of the sludge solids and supernate, the basic washing of the sludge solids, the acidic dissolution of the sludge solids, and the removal of the radionuclides from the supernate.

  11. Permeation of Tank C-103 sludge simulant by organic solvent

    SciTech Connect

    Gerber, M.A.

    1995-03-01

    The plan for stabilizing underground storage tanks (USTs) calls for draining the supernate from the tanks; however, there is concern that draining the supernate from Tank C-103 will degrade safety in the tank. The sludge in Tank C-103 contains ranges in depth from 1 to 1.5 m and is covered by both an aqueous phase and a separate organic layer. The main concern is that draining the supernate will cause the solvent to permeate the sludge solids and provide a source of fuel for a fire on the surface of the drained sludge. The question of whether the solvent will permeate sludge that is 1 to 1.5 m deep after the tank is dewatered is the purpose of the tests conducted and described in this report. Evaluation of the solvent permeation mechanism required the preparation of solvent, supernate, and sludge simulants based on the known chemistry of Tank C-103. Solvent and aqueous phase supernate simulants are based on the results of fiscal year 1994 sampling of the tank solvent and supernate. Sludge simulant is based on the chemical analyses of tank sludge samples retrieved in 1986. Experiments were conducted with each simulant to evaluate solvent permeation under matric potentials ranging from 0.8 m to 1.8 m of supernate. The amount of solvent recovered for each experiment was recorded as well as the maximum amount of solvent that could be din the sludge based on solvent recovered from resuspended sludge and solvent not recovered. The wt% of water remaining in the sludge was also recorded for each experiment, which was determined by measuring the weight of the sludge after drying it. One observation noted from the test results is that the finer sludge material tended to have a greater amount of solvent loss compared to the coarser sludge material at comparable levels of vacuum. At this time, there is no explanation.

  12. Evaluation of Hanford high level waste vitrification chemistry for an NCAW simulant -- FY 1994: Potential exothermic reactions in the presence of formic acid, glycolic acid, and oxalic acid

    SciTech Connect

    Sills, J.A.

    1995-07-01

    A potential for an uncontrollable exothermic reaction between nitrate and organic salts during preparation of a high level waste melter feed has been identified. In order to examine this potential more closely, the thermal behavior of simulated neutralized current acid waste (NCAW) treated with various organic reductants was studied. Differential scanning calorimetry (DSC) measurements were collected on simulated waste samples and their supernates treated with organics. Organic reductants used were formic acid, glycolic acid, and oxalic acid. For comparison, samples of untreated simulant and untreated simulant with added noble metals were tested. When heated, untreated simulant samples both with and without noble metals showed no exothermic behavior. All of the treated waste simulant samples showed exothermic behavior. Onset temperatures of exothermic reactions were 120 C to 210 C. Many onset temperatures, particularly those for formic acid treated samples, are well below 181 C, the estimated maximum steam coil temperature (considered to be a worst case maximum temperature for chemical process tank contents). The enthalpies of the reactions were {minus}180 {times} 10{sup {minus}3} J/Kg supernate ({minus}181 J/g) for the oxalic acid treated simulant supernate to {minus}1,150 {times} 10{sup {minus}3} J/Kg supernate ({minus}1,153 J/g) for the formic acid treated simulant supernate.

  13. FeyRay Evaluation: 2007

    DTIC Science & Technology

    2008-02-08

    eigenray propagation model) in a limited number of environments. Measurements of the relationship between GRAB and NSPE are designed to quantify the...the GRAB (Gaussian Ray Bundle eigenray propagation model) in a limited number of environments. Measurements of the relationship between GRAB and...implies that higher derivatives also oscillate. The magnitude of the oscillations will be small, but may be visible when the eigenrays from a fine

  14. Analysis of tank 23H samples in support of salt batch planning

    SciTech Connect

    Hay, M. S.; Coleman, C. J.; Diprete, D. P.

    2015-08-14

    Savannah River Remediation obtained three samples from different heights within Tank 23H. The samples were analyzed by Savannah River National Laboratory to support salt batch planning. The results from the analysis indicate the top two samples from the tank appear similar in composition. The lowest sample from the tank contained significantly more solids and a more concentrated salt solution. The filtered supernate from the bottom sample showed ~60% lower Sr-90 and Pu-238 concentrations than the decanted (unfiltered) supernate results which may indicate the presence of some small amount of entrained solid particles in the decanted sample. The mercury concentrations measured in the filtered supernate were fairly low for all three samples ranging from 11.2 to 42.3 mg/L.

  15. Production of the second component of complement by human monocytes: stimulation by antigen-activated lymphocytes or lymphokines

    PubMed Central

    1977-01-01

    Human peripheral blood mononuclear cells cultured in the presence of antigen produced hemolytically active second complement component earlier and in larger amounts than did control cultures of the same cells without antigen. The increased amount of C2 in culture supernates came primarily from the adherent cell population and was due to increased synthesis as demonstrated by inhibition with 10(-4) M cycloheximide. Purified adherent monocytes produced more C2 when exposed to lymphokine-rich supernates from antigen-stimulated lymphocytes than when exposed to control supernates from unstimulated lymphocyte cultures. The increased synthesis of C2, which appeared to be mediated by a lymphokine, was partially inhibited specifically by 0.025 M alpha-L(-) fucose, a sugar which has previously been shown in inhibit the response of macrophages to migration inhibitory factor. PMID:858999

  16. Two different biosynthetic pathways for the secretion of Qa region-associated class I antigens by mouse lymphocytes.

    PubMed Central

    Robinson, P J

    1987-01-01

    Treatment of supernates of labeled C57BL/6 mouse lymphocytes with antibodies against beta 2-microglobulin reveals the presence of two different soluble class I molecules. One molecule (Mr, 37,000) is found in supernates of both 125I surface-labeled and [35S]methionine biosynthetically labeled cells and reacts with antibodies against Qa-2 antigens. The other molecule (Mr, 42,000) is found labeled only in supernates of [35S]methionine-labeled cells and reacts with antibodies against Qb-1. Analysis of mutant and recombinant mouse strains demonstrates that both soluble class I molecules are encoded in the Qa region. Pulse-chase experiments show that the Qa-2 molecules are released more slowly than Qb-1. It is proposed that Qb-1 molecules are secreted directly, whereas Qa-2 is first expressed on the cell surface and then processed to a soluble form. Images PMID:3491993

  17. Permeation of Tank C-103 sludge simulant by organic solvent. Revision 1

    SciTech Connect

    Gerber, M.A.

    1995-08-01

    The plan for stabilizing underground storage tanks calls for draining the supernate from the tanks; however, there is concern that draining the supernate from Tank C-103 will degrade safety in the tank. The sludge in Tank C-103 contains ranges in depth from 1 to 1.5 m and is covered by both an aqueous phase and a separate organic layer. The main concern is that draining the supernate will cause the solvent to permeate the sludge solids and provide a source of fuel for a fire on the surface of the drained sludge. The question of whether the solvent will permeate sludge that is 1 to 1.5 m deep after the tank is dewatered is the purpose of the tests conducted and described in this report.

  18. Heartwater in the Caribbean: isolation of Cowdria ruminantium from Antigua.

    PubMed

    Birnie, E F; Burridge, M J; Camus, E; Barré, N

    1985-02-02

    Adult Ambylomma variegatum ticks were collected from 184 cattle, 13 sheep and one goat in Antigua, and ground in phosphate buffered saline. The resultant supernates were cryopreserved in liquid nitrogen. Five supernate pools, each derived from approximately 100 ticks collected from different herds, were thawed and each was inoculated intravenously into a separate experimental goat. One goat exhibited a febrile response with Cowdria ruminantium demonstrable in brain biopsies; after recovery, this animal showed no reaction to a lethal challenge with a Guadeloupe isolate of C ruminantium.

  19. Separation of strontium from fecal matter

    DOEpatents

    Kester, Dianne K.

    1995-01-01

    A method of separating strontium from a sample of biomass potentially contaminated with various radionuclides. After the sample is reduced, dissociated, and carried on a first precipitate of actinides, the first precipitate is removed to leave a supernate. Next, oxalic acid is added to the supernate to cause a second precipitate of strontium and calcium. Then, after separating the second precipitate, nitric acid is added to the second precipitate to cause a third precipitate of strontium. The calcium remains in solution and is discarded to leave essentially the precipitate of strontium.

  20. Separation of strontium from fecal matter

    DOEpatents

    Kester, D.K.

    1995-01-03

    A method is presented of separating strontium from a sample of biomass potentially contaminated with various radionuclides. After the sample is reduced, dissociated, and carried on a first precipitate of actinides, the first precipitate is removed to leave a supernate. Next, oxalic acid is added to the supernate to cause a second precipitate of strontium and calcium. Then, after separating the second precipitate, nitric acid is added to the second precipitate to cause a third precipitate of strontium. The calcium remains in solution and is discarded to leave essentially the precipitate of strontium.

  1. Engineering Study of 500 ML Sample Bottle Transportation Methods

    SciTech Connect

    BOGER, R.M.

    1999-08-25

    This engineering study reviews and evaluates all available methods for transportation of 500-mL grab sample bottles, reviews and evaluates transportation requirements and schedules and analyzes and recommends the most cost-effective method for transporting 500-mL grab sample bottles.

  2. 46 CFR 160.076-25 - Approval testing.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS... Characteristics Tests required by UL 1180 section 6. (i) Grab breaking strength. The grab breaking strength of chamber materials must be determined in accordance with Method No. 5100 of Federal Test Method Standard...

  3. 49 CFR 38.123 - Restrooms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... above the floor. Fixtures shall not interfere with access to and use of the water closet. Fold-down or... folded up or moved out of the way. (2) The height of the water closet shall be 17 inches to 19 inches... grab bar at least 24 inches long shall be mounted behind the water closet, and a horizontal grab bar at...

  4. HUMBLE REDWOOD 3 (DVD)

    DTIC Science & Technology

    REDWOOD (HR) Ill program executed a total of five tests at the Chestnut Test Site and the Giant Reusable Air Blast Simulator (GRABS), both on Kirtland...tests at the Chestnut and GRABS test sites on Kirtland Air Force Base (AFB). The purpose of these tests is to study the effects of explosions within a

  5. 40 CFR Table 9 to Subpart Hhhhhhh... - Procedures for Conducting Sampling of Stripped Resin and Process Wastewater

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Stripped Resin and Process Wastewater 9 Table 9 to Subpart HHHHHHH of Part 63 Protection of Environment... Wastewater For demonstrating . . . For the following emission points and types of processes . . . Collect.... Each process wastewater stream 3. Initial compliance N/A 1 grab sample 1 grab sample. 4. Continuous...

  6. 40 CFR Table 9 to Subpart Hhhhhhh... - Procedures for Conducting Sampling of Stripped Resin and Process Wastewater

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Stripped Resin and Process Wastewater 9 Table 9 to Subpart HHHHHHH of Part 63 Protection of Environment... Wastewater For demonstrating . . . For the following emission points and types of processes . . . Collect.... Each process wastewater stream 3. Initial compliance N/A 1 grab sample 1 grab sample. 4. Continuous...

  7. Short communication: Improved method for centrifugal recovery of bacteria from raw milk applied to sensitive real-time quantitative PCR detection of Salmonella spp

    USDA-ARS?s Scientific Manuscript database

    Centrifugation of milk is widely used as a separation/concentration step in assays for pathogenic microorganisms. Separation of the cream and liquid supernate from the pellet containing sedimented solids, somatic cells and microorganisms eliminates many interfering substances, and resuspension of th...

  8. Borehole Miner - Extendible Nozzle Development for Radioactive Waste Dislodging and Retrieval from Underground Storage Tanks

    SciTech Connect

    CW Enderlin; DG Alberts; JA Bamberger; M White

    1998-09-25

    This report summarizes development of borehole-miner extendible-nozzle water-jetting technology for dislodging and retrieving salt cake, sludge} and supernate to remediate underground storage tanks full of radioactive waste. The extendible-nozzle development was based on commercial borehole-miner technology.

  9. Ion exchange at TNX using the SKID unit

    SciTech Connect

    Meyer, M.L.; Bibler, J.P.

    1993-10-21

    An ion exchange unit has been manufactured for WSRC by British Nuclear Fuels, Ltd. This unit consists of three columns, ancillary valving, pumps, lines, and computer controls. It has been delivered to TNX for use in testing a cesium-specific ion exchange resin, developed at WSRC as a potential second generation process for the decontamination of Defense Waste Processing Facility (DWPF) supernate. This resin also has Department of Energy applications at both Oak Ridge and Hanford. Oak Ridge is interested in decontaminating the Melton Valley storage tank supernate, while Hanford is interested in decontaminating the 101-AW and 101-SY supernate streams. Another potential developmental interest is the Savannah River Site (SRS) DWPF recycle stream. The three primary waste streams of interest are the Oak Ridge, Hanford, and SRS, SWPF supernate streams. For these three waste streams, the cesium decontamination factor (DF) will be measured for a non-radioactive, simulated, high-level waste solution. The test objectives, process outlines, and broad characterization of the waste streams are described.

  10. Enrichment and Location of Uranium Precipitates from Uranyl Carbonate Addition to Tank 43

    SciTech Connect

    d'Entremont, P.D.

    2001-06-04

    In order to safety restart the 2H evaporator, plans are to add depleted uranium (DU) as uranyl carbonate to Tank 43 to lower the 235U enrichment in the supernate. This memo examines the enrichment and location of uranium precipitates formed in Tank 43. An assessment of the risks associated with precipitating uranium shows that there is no criticality concern during this operation.

  11. Recent progress of the waste processing and disposal projects within the Underground Storage Tank-Integrated Demonstration

    SciTech Connect

    Hunt, R.D.; McGinnis, C.P.; Cruse, J.M.

    1994-06-01

    The US Department of Energy (DOE) Office of Environmental Restoration and Waste Remediation has created the Office of Technology Development (OTD) to provide new and improved remediation technologies for the 1 {times} 10{sup 8} gal of radioactive waste in the underground storage tanks (USTs) at five DOE sites. The OTD established and the Underground Storage Tank-Integrated Demonstration (UST-ID) to perform demonstrations, tests, and evaluations on these new technologies before these processes are transferred to the tank sites for use in full-scale remediation of the USTs. The UST-ID projects are performed by the Characterization and Waste Retrieval Program or the Waste Processing and Disposal Program (WPDP). During FY 1994, the WPDP is funding 12 projects in the areas of supernate processing, sludge processing, nitrate destruction, and final waste forms. The supernate projects are primarily concerned with cesium removal. A mobile evaporator and concentrator for cesium-free supernate is also being demonstrated. The sludge projects are emphasizing sludge dissolution and the evaluation of the TRUEX and diamide solvent extraction processes for transuranic waste streams. One WPDP project is examining both supernate and sludge processes in an effort to develop a system-level plan for handling all UST waste. The other WPDP studies are concerned with nitrate and organic destruction as well as subsequent waste forms. The current status of these WPDP projects is presented.

  12. Characterization of Samples from the 3H Evaporator System Including Effects of Recycle

    SciTech Connect

    Wilmarth, W.R.

    2001-05-15

    Analysis of several series of samples from the 3H Evaporator System have been completed. The goal of this work was to determine the effects of 3H operation including recycle of concentrated supernate from Tank 30H into the sludge layer of Tank 32H.

  13. On the sense of the physical laws and the frontiers of knowledge.

    NASA Astrophysics Data System (ADS)

    Hrynkiewicz, A. Z.

    1996-12-01

    The development of modern physics tends to limit the area of irrationalism. The explanation of the structure and dynamics of the phenomena of the world around us is working against superstitions and faith in the activity of supernational forces. However, it remains a question whether ultimate limits of our knowledge do still exist.

  14. Decant pump assembly and controls qualification testing - test report

    SciTech Connect

    Staehr, T.W., Westinghouse Hanford

    1996-05-02

    This report summarizes the results of the qualification testing of the supernate decant pump and controls system to be used for in-tank sludge washing in aging waste tank AZ-101. The test was successful and all components are qualified for installation and use in the tank.

  15. Bases, Assumptions, and Results of the Flowsheet Calculations for the Decision Phase Salt Disposition Alternatives

    SciTech Connect

    Elder, H.H.

    2001-07-11

    The HLW salt waste (salt cake and supernate) now stored at the SRS must be treated to remove insoluble sludge solids and reduce the soluble concentration of radioactive cesium radioactive strontium and transuranic contaminants (principally Pu and Np). These treatments will enable the salt solution to be processed for disposal as saltstone, a solid low-level waste.

  16. CHARACTERIZATION AND ALUMINUM DISSOLUTION DEMONSTRATION WITH A 3 LITER TANK 51H SAMPLE

    SciTech Connect

    Hay, M; John Pareizs, J; Cj Bannochie, C; Michael Stone, M; Damon Click, D; Daniel McCabe, D

    2008-02-29

    A 3-liter sludge slurry sample was sent to SRNL for demonstration of a low temperature aluminum dissolution process. The sludge was characterized before and after the aluminum dissolution. Post aluminum dissolution sludge settling and the stability of the decanted supernate were also observed. The characterization of the as-received 3-liter sample of Tank 51H sludge slurry shows a typical high aluminum HM sludge. The XRD analysis of the dried solids indicates Boehmite is the predominant crystalline form of aluminum in the sludge solids. However, amorphous phases of aluminum present in the sludge would not be identified using this analytical technique. The low temperature (55 C) aluminum dissolution process was effective at dissolving aluminum from the sludge. Over the three week test, {approx}42% of the aluminum was dissolved out of the sludge solids. The process appears to be selective for aluminum with no other metals dissolving to any appreciable extent. At the termination of the three week test, the aluminum concentration in the supernate had not leveled off indicating more aluminum could be dissolved from the sludge with longer contact times or higher temperatures. The slow aluminum dissolution rate in the test may indicate the dissolution of the Boehmite form of aluminum however; insufficient kinetic data exists to confirm this hypothesis. The aluminum dissolution process appears to have minimal impact on the settling rate of the post aluminum dissolution sludge. However, limited settling data were generated during the test to quantify the effects. The sludge settling was complete after approximately twelve days. The supernate decanted from the settled sludge after aluminum dissolution appears stable and did not precipitate aluminum over the course of several months. A mixture of the decanted supernate with Tank 11 simulated supernate was also stable with respect to precipitation.

  17. Tank 26F-2F Evaporator Study

    SciTech Connect

    Adu-Wusu, K.

    2012-12-19

    Tank 26F supernate sample was sent by Savannah River Remediation to Savannah River National Laboratory for evaporation test to help understand the underlying cause of the recent gravity drain line (GDL) pluggage during operation of the 2F Evaporator system. The supernate sample was characterized prior to the evaporation test. The evaporation test involved boiling the supernate in an open beaker until the density of the concentrate (evaporation product) was between 1.4 to 1.5 g/mL. It was followed by filtering and washing of the precipitated solids with deionized water. The concentrate supernate (or concentrate filtrate), the damp unwashed precipitated solids, and the wash filtrates were characterized. All the precipitated solids dissolved during water washing. A semi-quantitative X-ray diffraction (XRD) analysis on the unwashed precipitated solids revealed their composition. All the compounds with the exception of silica (silicon oxide) are known to be readily soluble in water. Hence, their dissolution during water washing is not unexpected. Even though silica is a sparingly water-soluble compound, its dissolution is also not surprising. This stems from its small fraction in the solids as a whole and also its relative freshness. Assuming similar supernate characteristics, flushing the GDL with water (preferably warm) should facilitate dissolution and removal of future pluggage events as long as build up/aging of the sparingly soluble constituent (silica) is limited. On the other hand, since the amount of silica formed is relatively small, it is quite possible dissolution of the more soluble larger fraction will cause disintegration or fragmentation of the sparingly soluble smaller fraction (that may be embedded in the larger soluble solid mass) and allow its removal via suspension in the flushing water.

  18. Characterization of Core Samples from a Hardened Crust Layer in Tank 4F

    SciTech Connect

    Hay, M. L.

    2005-09-28

    Waste removal operations in Tank 4F are scheduled to begin in late 2005 to provide material for Sludge Batch 5. Mining/probing operations to support installation of submersible mixer pumps encountered a hard layer of material at {approx}45'' to 50'' from the bottom of the tank. Attempts at penetrating the hard layer using a manual mining tool in several different risers were not successful. A core-sampling tool was used to obtain samples of the hard crust layer in Tank 4F for characterization. Three 12'' core samples and a dip sample of the supernate near the surface of the hard layer were sent to Savannah River National Laboratory (SRNL) for characterization. X-ray Diffraction (XRD) results for the crystalline solids from both sample FTF-434 and FTF-435 identifies the major component of both samples as Burkeite (Na{sub 6}(CO{sub 3})(SO{sub 4}){sub 2}). All of the other data collected on the crystalline solids from the Tank 4F core samples support this conclusion. The conditions in Tank 4F for the last twenty years have been ideal for Burkeite formation. The tank has been largely undisturbed with a tank temperature consistently above 30 C, a carbonate to sulfate molar ratio in the supernate conducive to Burkeite formation, and slow evaporation of the supernate phase. Thermodynamic modeling and the results of a Burkeite solubility test confirm that a ratio of 1:1:12 for the volumes of Burkeite solids, supernate, and inhibited water will dissolve all of the Burkeite. These ratios could be used to remove the 6'' layer of Burkeite from Tank 4F with no mixing. However, the thermodynamic modeling and the solubility test neglect the sludge layer beneath the Burkeite crust in Tank 4F. Settled sludge in Savannah River Site (SRS) high-level waste tanks usually contains greater than 75% interstitial supernate by volume. If the supernate in the sludge layer should mix into the solution used to dissolve the Burkeite, significantly more inhibited water would be needed to

  19. Home Injury Prevention

    MedlinePlus

    ... raised toilet seat and grab bars on the wall if you have difficulty rising from a sitting position. • To avoid burns, set the hot water temperature at 120° or lower. Kitchen Safety • Slide ...

  20. Interventions for hypersexuality.

    PubMed

    Sander, Ruth

    2009-10-26

    Hypersexuality involves persistent and inappropriate sexual behaviour, such as sex talk with foul language not in keeping with previous personality, sexual acts including touching, grabbing, exposing, public masturbating or requesting unnecessary genital care.

  1. 40 CFR 419.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... subpart D, § 419.42(b)(3). (c) The provisions of § 419.12(c) apply to discharges of process wastewater... analysis of any single grab or composite sample. (2) If contaminated runoff is commingled or treated...

  2. 40 CFR 419.12 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... D, § 419.42(b)(3). (c) The following allocations constitute the quantity and quality of pollutants... organic carbon (TOC) based upon an analysis of any single grab or composite sample. (2) If...

  3. 24 CFR 891.310 - Special project standards.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... operation of the home. If the project involves acquisition (with or without rehabilitation), the structure... and elements, such as kitchen counters, sinks, and grab bars, to be added or altered so as to...

  4. STS 125 Samples: the Hubble Servicing Mission

    NASA Technical Reports Server (NTRS)

    James, John T.

    2010-01-01

    The toxicological assessments of 2 grab sample canisters (GSCs) from the Shuttle are reported in a table. Based on the end-of-mission sample, the Shuttle atmosphere was acceptable for human respiration.

  5. Occurrence of pesticides and contaminants of emerging concern in surface waters: Influence of surrounding land use and evaluation of sampling methods

    USDA-ARS?s Scientific Manuscript database

    Biologically active compounds originating from agricultural, residential, and industrial sources have been detected in surface waters, which have invoked concern of their potential ecological and human health effects. Automated and grab surface water samples, passive water samples - Polar Organic Co...

  6. GY SAMPLING THEORY IN ENVIRONMENTAL STUDIES 1: ASSESSING SOIL SPLITTING PROTOCOLS

    EPA Science Inventory

    Five soil sample splitting methods (riffle splitting, paper cone riffle splitting, fractional shoveling, coning and quartering, and grab sampling) were evaluated with synthetic samples to verify Pierre Gy sampling theory expectations. Individually prepared samples consisting of l...

  7. GY SAMPLING THEORY IN ENVIRONMENTAL STUDIES 1: ASSESSING SOIL SPLITTING PROTOCOLS

    EPA Science Inventory

    Five soil sample splitting methods (riffle splitting, paper cone riffle splitting, fractional shoveling, coning and quartering, and grab sampling) were evaluated with synthetic samples to verify Pierre Gy sampling theory expectations. Individually prepared samples consisting of l...

  8. Soyuz 27 Return Samples: Air Quality Aboard the International Space Station: Revised

    NASA Technical Reports Server (NTRS)

    James, John T.

    2012-01-01

    The toxicological assessment of 6 GSCs from the ISS is shown. The average recoveries of the 3 surrogate standards from the grab sample containers were as follows: C-13-acetone, 115%; fluorobenzene, 108%; and chlorobenzene, 93%.

  9. Recovery position - series (image)

    MedlinePlus

    ... CPR, the victim should be placed in the recovery position. The recovery position helps keep the victim's airway open. To put the victim in the recovery position grab the victim's leg and shoulder and ...

  10. A Strategic Decision Matrix for Analyzing Food Service Operations at Air Force Bases

    DTIC Science & Technology

    2006-12-01

    Individual Chips Granola Bar Fresh Fruit Condiment and Lettuce Pack Grab and Go #3...order food like hamburgers, hot dogs and hot sandwiches. Combining nutrition , variety and diversity increases customer’s willingness to pay. 4

  11. 46 CFR 160.050-4 - Construction and workmanship.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... be adhesive bonded along a center line through an axis passing through the flat area dimension of the... with not less than three stitches per inch. Alternate methods for rigging beckets and grab line will be...

  12. 46 CFR 160.050-4 - Construction and workmanship.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... be adhesive bonded along a center line through an axis passing through the flat area dimension of the... with not less than three stitches per inch. Alternate methods for rigging beckets and grab line will be...

  13. 46 CFR 160.050-4 - Construction and workmanship.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... be adhesive bonded along a center line through an axis passing through the flat area dimension of the... with not less than three stitches per inch. Alternate methods for rigging beckets and grab line will be...

  14. 46 CFR 160.050-4 - Construction and workmanship.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... be adhesive bonded along a center line through an axis passing through the flat area dimension of the... with not less than three stitches per inch. Alternate methods for rigging beckets and grab line will be...

  15. 46 CFR 160.050-4 - Construction and workmanship.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... be adhesive bonded along a center line through an axis passing through the flat area dimension of the... with not less than three stitches per inch. Alternate methods for rigging beckets and grab line will be...

  16. Lower Mississippi River Environmental Program. Report 9. An Ecological Investigation of Revetted and Natural Bank Habitats in the Lower Mississippi River

    DTIC Science & Technology

    1988-03-01

    Table B2 (Concluded) Fort Adams Revetment Shipek ACM Taxon Grab Hess Slabs Annelida Naididae Stylurus sp. 24 Tubificidae Tubificidae (nc)** 49...Polycentropiidae Neureclipsis sp. 1 Turbellaria Tricladida Dugesia tigrina 316 Nematoda 24 Annelida Oligochaeta Tubificidae Branchiura sowerbyi 607

  17. Effect of Internal Solitary Waves on Underwater Acoustic Propagation

    DTIC Science & Technology

    2010-01-01

    range-dependent Comprehensive Acoustic Simulation System with the Gaussian Ray Bundle eigenray model (CASS/GRAB) for acoustic and sonar analysis. It...family to produce a representative eigenray for that family. Target echo level and rever- beration level are computed separately. CASS/GRAB predicts the...depths (SD) (5, 100, and 200m) are used. Eigenrays are generated in the mono-static active mode maxi- mum surface/bottom reflections less than 30°. The

  18. Measurements of the global distribution of carbon monoxide in the troposphere

    NASA Technical Reports Server (NTRS)

    Hinton, R. R.

    1982-01-01

    Carbon monoxide and methane grab samples were obtained simultaneously with ozone, aerosol, nitric oxide and DACOM CO measurements. Eighty grab samples were collected at various altitudes up to 19,000 ft. along a north-south flight path from Wallops Flight Center, VA to 11 N. CO and CH were analyzed by flame ionization gas chromatography with cryogenic preconcentration. The relationship between CO and O3 concentrated is examined. A comparative analysis between trends in aerosol and CO concentration is performed.

  19. Soyuz 24 Return Samples: Assessment of Air Quality Aboard the International Space Station

    NASA Technical Reports Server (NTRS)

    James, John T.

    2011-01-01

    Fifteen mini-grab sample containers (m-GSCs) were returned aboard Soyuz. This is the first time all samples were acquired with the mini-grab samplers. The toxicological assessment of 15 m-GSCs from the ISS is shown. The recoveries of the 3 internal standards, C(13)-acetone, fluorobenzene, and chlorobenzene, from the GSCs averaged 75, 97 and 79%, respectively. Formaldehyde badges were not returned on Soyuz 24

  20. Measurements of the global distribution of carbon monoxide in the troposphere

    NASA Astrophysics Data System (ADS)

    Hinton, R. R.

    1982-07-01

    Carbon monoxide and methane grab samples were obtained simultaneously with ozone, aerosol, nitric oxide and DACOM CO measurements. Eighty grab samples were collected at various altitudes up to 19,000 ft. along a north-south flight path from Wallops Flight Center, VA to 11 N. CO and CH were analyzed by flame ionization gas chromatography with cryogenic preconcentration. The relationship between CO and O3 concentrated is examined. A comparative analysis between trends in aerosol and CO concentration is performed.

  1. JPRS Report, East Asia, Southeast Asia, The Decisive Years: Memoirs of Vietnamese Senior General Hoang Van Thai

    DTIC Science & Technology

    1987-06-23

    another, defeated the enemy’s pacification and land-grabbing plans, and defended the liberated areas. The guidance experiences of Military Region...and modes and attentively listened to the experiences of military regions 8 and 9 and the communiques of the upper echelon on the situations in the...applying the struggle slogans and modes, and applying experiences in fighting the enemy’s pacification and land-grabbing, protecting the people, and

  2. Characterization of Radionuclides in Waste Sludges from High Level Waste Tanks 40, 42, and 51

    SciTech Connect

    O'Bryant, R.F.

    2000-06-28

    This document will develop a radionuclide distribution for the sludge fraction of sludge-contaminated waste stored in High Level Waste Tanks 40, 42 and 51 in accordance with the methodology outlined in WAC 2.02 (Rev. 4). A single, comprehensive characterization for supernate has been developed previously (Reference 5). This distribution is based on the assumption that sludge-contaminated waste from tanks 40, 42 and 51 may be co-mingled, and the actual contamination present on waste in a series of containers from these tanks will be representative of the mean radionuclide distribution. This document also describes the methodology for application of radionuclide distributions representative of the sludge and supernate fractions of sludge-contaminated waste to individual waste packages.

  3. Inhibition of the activation of Hageman factor (factor XII) by peripheral blood cells.

    PubMed Central

    Ratnoff, O D; Emanuelson, M M; Ziats, N P

    1987-01-01

    Suspensions of peripheral blood mononuclear cells (PBMC), monocytes, T or B lymphocytes, platelets or granulocytes, and cell-depleted supernatant fluids of these suspensions inhibited activation of Hageman factor (HF, Factor XII) by ellagic acid, a property not shared by erythrocytes. PBMC also inhibited HF activation by glass or sulfatides. Contaminating platelets may have contributed to inhibition by PBMC. Elaboration of agents inhibiting HF activation required metabolically active cells. The inhibitor(s) in PBMC supernates were not identified with known agents, but had properties of a nonenzymatic protein. PBMC supernates did not contain fibrinogen, nor alter the thrombin, prothrombin, or partial thromboplastin times of normal plasma, amidolysis by activated plasma thromboplastin antecedent (Factor XIa) or activated Stuart factor (Factor Xa) or esterolysis by C1 (C1 esterase); they inhibited plasmin minimally. These experiments suggest that peripheral blood cells may impede intravascular coagulation. Whether this property helps maintain the fluidity of blood is unclear. PMID:3498741

  4. Young—Capelli symmetrizers in superalgebras†

    PubMed Central

    Brini, Andrea; Teolis, Antonio G. B.

    1989-01-01

    Let Supern[U [unk] V] be the nth homogeneous subspace of the supersymmetric algebra of U [unk] V, where U and V are Z2-graded vector spaces over a field K of characteristic zero. The actions of the general linear Lie superalgebras pl(U) and pl(V) span two finite-dimensional K-subalgebras B and [unk] of EndK(Supern[U [unk] V]) that are the centralizers of each other. Young—Capelli symmetrizers and Young—Capelli *-symmetrizers give rise to K-linear bases of B and [unk] containing orthogonal systems of idempotents; thus they yield complete decompositions of B and [unk] into minimal left and right ideals, respectively. PMID:16594014

  5. In vitro studies of the anticalculus efficacy of a sodium hexametaphosphate whitening dentifrice.

    PubMed

    White, Donald J; Cox, Ed R; Suszcynskymeister, Elaine M; Baig, Arif A

    2002-01-01

    Laboratory studies involving crystal growth inhibition and plaque biofilm calcification were conducted to confirm the anticalculus potential of a dual-action whitening dentifrice containing sodium hexametaphosphate, a novel, enamel-safe, antitartar agent. Calcium hydroxyapatite crystal growth was significantly inhibited following direct supernate treatments by hexametaphosphate in solution and when formulated into the dual-action whitening dentifrice. Similarly, plaque biofilm calcification was significantly inhibited by supernate treatments of the hexametaphosphate whitening dentifrice. The activity of hexametaphosphate dentifrice in plaque biofilm calcification protocols exceeded that produced by commercial dentifrices containing polycarboxylic acid, metal ion and pyrophosphate tartar control ingredients. Results predict excellent clinical activity for hexametaphosphate dentifrice for the prevention of supragingival calculus formation. Published double-blind, randomized clinical studies confirm the validity of these laboratory models for the screening of potentially improved tartar control ingredients.

  6. Low-level waste feed staging plan

    SciTech Connect

    Certa, P.J.; Grams, W.H.; McConville, C.M.; L. W. Shelton, L.W.; Slaathaug, E.J., Westinghouse Hanford

    1996-08-12

    The `Preliminary Low-Level Waste Feed Staging Plan` was updated to reflect the latest requirement in the Tank Waste Remediation Privatization Request for Proposals (RFP) and amendments. The updated plan develops the sequence and transfer schedule for retrieval of DST supernate by the management and integration contractor and delivery of the staged supernate to the private low-activity waste contractors for treatment. Two DSTs are allocated as intermediate staging tanks. A transfer system conflict analysis provides part of the basis for determining transfer system upgrade requirements to support both low-activity and high-level waste feed delivery. The intermediate staging tank architecture and retrieval system equipment are provided as a planning basis until design requirements documents are prepared. The actions needed to successfully implement the plan are identified. These include resolution of safety issues and changes to the feed envelope limits, minimum order quantities, and desired batch sizes.

  7. Monoclonal antibodies that recognize transcription unit proteins on newt lampbrush chromosomes

    PubMed Central

    1987-01-01

    We prepared hybridoma cell lines from mice injected with newt germinal vesicle proteins. We tested culture supernates from these cell lines for antibodies that bound to specific morphological structures in lampbrush chromosome preparations (nucleoli, loops, chromomeres, etc.). Four mAbs that recognize antigens on the lateral transcription loops are described here. We suggest that these antigens are proteins associated with nascent RNA transcripts, although they are not among the 30-40-kD "core" heterogeneous nuclear ribonucleoproteins. PMID:3308902

  8. Evaluation of no-MST operations in the SRS ARP for Hanford LAWPS

    SciTech Connect

    Herman, D.

    2016-11-14

    The Savannah River Site (SRS) Actinide Removal Process has been processing salt waste since 2008. This process includes a filtration step in the 512-S facility. Initial operations included the addition, or strike, of monosodium titanate (MST) to remove soluble actinides and strontium. The added MST and any entrained sludge solids were then separated from the supernate by cross flow filtration. During this time, the filter operations have, on many occasions, been the bottleneck process limiting the rate of salt processing. Recently, 512-S- has started operations utilizing “No-MST” where the MST actinide removal strike was not performed and the supernate was simply pre-filtered prior to Cs removal processing. Direct filtration of decanted tank supernate, as demonstrated in 512-S, is the proposed method of operation for the Hanford Low Activity Waste Pretreatment System (LAWPS) facility. Processing decanted supernate without MST solids has been demonstrated for cross flow filtration to provide a significant improvement in production with the SRS Salt Batches 8 and 9 feed chemistries. The average filtration rate for the first 512-S batch processing cycle using No-MST has increased filtrate production by over 35% of the historical average. The increase was sustained for more than double the amount of filtrate batches processed before cleaning of the filter was necessary. While there are differences in the design of the 512-S and Hanford filter systems, the 512-S system should provide a reasonable indication of LAWPS filter performance with similar feed properties. Based on the data from the 512-S facility and with favorable feed properties, the LAWPS filter, as currently sized at over twice the size of the 512-S filter (532 square feet filtration area versus 235 square feet), has the potential to provide sustained filtrate production at the upper range of the planned LAWPS production rate of 17 gpm.

  9. Effect of Environmental Conditions on Group a Streptococcal Pyrogenic Exotoxin Production

    DTIC Science & Technology

    1992-10-06

    M type 18), and NY-5 (M type 10 and 12). Through the use of Ouchterlony immunodiffusion and Western immunoblot assays, it has been shown that: T253...samples was estimated by determining the maximum dilution of supernate (20ul/well) which was detectable by Ouchterlony I1 immunodiffusion assay (the lower...of toxin by Ouchterlony immunodiffusion as described above. Positive fractions were refocused in the appropriate narrow pH gradient corresponding to

  10. Chemical derivatization to enhance chemical/oxidative stability of resorcinol-formaldehyde resin

    SciTech Connect

    Hubler, T.

    1996-10-01

    The purpose of this work is to develop modified resorcinol-formaldehyde (R-F) resin with enhanced chemical/oxidative stability in conditions typically encountered in the remediation of radioactive waste tanks. R-F resin is a regenerable organic ion-exchanger developed at Savannah River Technology Center that is being considered for use in the selective removal of radioactive cesium from alkaline waste tank supernates at both the Hanford and Savannah River sites.

  11. Decanting of Neutralized H-Canyon Unirradiated Nuclear Material High Activity Waste Streams

    SciTech Connect

    BRONIKOWSKI, MICHAELG.

    2004-08-05

    An option to dispose of the High Activity Waste (HAW) stream from the processing of unirradiated materials directly to Saltstone is being evaluated to conserve High Level Waste (HLW) tank farm space and to reduce the future production of HLW glass logs. To meet the Saltstone Waste Acceptance Criteria (WAC), decanting the supernate from precipitated solids was proposed to reduce mercury and radionuclide levels in the waste. Only the caustic supernate will then be sent to Saltstone. Verification that the Saltstone WAC will be met has involved a series of laboratory studies using surrogate and actual HAW solutions from H-Canyon. The initial experiment involved addition of sodium hydroxide (NaOH) to a surrogate HAW test solution and subsequent decanting of the supernate away from the precipitated solids. The chemical composition of the surrogate solution was based on a composition defined from analyses of actual HAW solutions generated during dissolution of unirradiated nuclear materials in H-Canyon [1]. Results from testing the surrogate HAW solution were reported in Reference [2]. Information obtained from the surrogate test solution study was used to define additional experiments on actual HAW solutions obtained from H-Canyon. These experiments were conducted with samples from three different batches of HAW solutions. The first and third HAW samples (HAW No.1 and HAW No.3 solutions) contained the centrifuge filter cake material from a gelatin strike that is periodically added to the waste stream. The second HAW sample (HAW No.2 solution) did not contain filter cake material. Monosodium titanate (MST) was added to the HAW No.2 and HAW No.3 solutions after addition of NaOH was complete and before the settling step. The addition of MST was to improve the decontamination of alpha and beta emitters (primarily plutonium and strontium) from the supernate. The addition of excess NaOH and the addition of MST were expected to result in sufficient alpha and beta

  12. Monoclonal Antibodies that Recognize Proteins Unique to Somatic Embryos of Daucus carota.

    DTIC Science & Technology

    1985-01-01

    For enzyme immunoassay (EIA), 6 M urea extracts of the lyophilized tissues were prepared (-., personal communication), their protein content was...of hybridoma supernates on EIA plates coated with 6 M urea extracts (1 mg protein/well) of lyophilized callus cells (A), somatic embryo cells (B), and...101Ali reacts with denatured proteins that were identified as LHCP by their apparent molecular weight and reaction with rabbit antisera to maize LHCP

  13. Chronic toxicity evaluation of the Savannah River Site DETF discharges and three locations on Tims Branch

    SciTech Connect

    Not Available

    1990-10-01

    Chronic toxicity tests with Ceriodaphnia dubia were conducted June 6--August 1, 1990, on the Savannah River Site M-Area supernate discharge effluent (M-004), the A-014 effluent discharge with and without DETF process flow, and for stream samples collected in Tims Branch upstream and downstream from A-014. A secondary objective of the study was to determine what DETF flow rate would not cause instream impact to the aquatic community. 2 figs., 68 tabs.

  14. Microdetermination of Sucrose in Plasma with the Anthrone Reagent.

    DTIC Science & Technology

    1979-11-01

    disaccharides and polysaccharides are hydrolyzed to form monosaccharides . In addition, water is split off from the latter to form hydroxaldehyde...supernate were then concentrated to dryness at 80 C with a manifold evaporator after which endogenous monosaccharides were destroyed by the addition of...modifications of the Roe’s (15) resorcinol method for deter- mining fructose. Interference by monosaccharides was reduced by the hot dilute NaOH contained in

  15. Glass formulation requirements for DWPF coupled operations using crystalline silicotitanates

    SciTech Connect

    Harbour, J.R.; Andrews, M.K.

    1997-01-09

    The design basis DWPF flowsheet couples the vitrification of two waste streams: (1) a washed sludge and (2) a hydrolyzed sodium tetraphenylborate precipitate product, PHA. The PHA contains cesium-137 which had been precipitated from the tank supernate with sodium tetraphenylborate. Smaller amounts of strontium and plutonium adsorbed on sodium titanate are also present with the PHA feed. Currently, DWPF is running a sludge-only flowsheet while working towards solutions to the problems encountered with In Tank Precipitation (ITP). The sludge loading for the sludge-only flowsheet and for the anticipated coupled operations is 28 wt% on an oxide basis. For the coupled operation, it is essential to balance the treatment of the two waste streams such that no supernate remains after immobilization of all the sludge. An alternative to ITP and sodium titanate is the removal of Cs-137, Sr-90, and plutonium from the tank supernate by ion exchange using crystalline silicotitanate (CST). This material has been shown to effectively sorb these elements from the supernate. It is also known that CST sorbs plutonium. The loaded CST could then be immobilized with the sludge during vitrification. It has recently been demonstrated that CST loadings approaching 70 wt% for a CST-only glass can be achieved using a borosilicate glass formulation which can be processed by the DWPF melter. Initial efforts on coupled waste streams with simulated DWPF sludge show promise that a borosilicate glass formulation can incorporate both sludge and CST. This paper presents the bases for research efforts to develop a glass formulation which will incorporate sludge and CST at loadings appropriate for DWPF operation.

  16. Preliminary technical data summary No. 3 for the Defense Waste Processing Facility

    SciTech Connect

    Landon, L.F.

    1980-05-01

    This document presents an update on the best information presently available for the purpose of establishing the basis for the design of a Defense Waste Processing Facility. Objective of this project is to provide a facility to fix the radionuclides present in Savannah River Plant (SRP) high-level liquid waste in a high-integrity form (glass). Flowsheets and material balances reflect the alternate CAB case including the incorporation of low-level supernate in concrete. (DLC)

  17. Where Are the Voices of Reason and Hope

    DTIC Science & Technology

    2012-04-01

    Tsygankov calls the Islamic “monolithic myth.”36 Huntington’s entire thesis is based upon the affinity of super-national structures which he calls...civilizations. The problem with this idea is that it assumes a natural and strong affinity across the civilizations which Huntington has identified (see... Indonesia , and Iran— simply because they have majority Muslim populations—are all part of a unified “Islamic civilization” is simply not true. As Kunihiko

  18. Evaluation of alternatives for defense waste management at the Savannah River Plant: Final report for FY-84, February 1984 to September 1984

    SciTech Connect

    Not Available

    1984-09-01

    This report is an independent evaluation of the Savannah River program for the management of high-level radioactive defense waste. Our evaluations focus on the design, construction, and operation of the Defense Waste Processing Facility (DWPF) for sludge processing and on methods for dealing with the disposal of supernates. The scope includes an evaluation of the Hanford Waste Vitrification Plant program. 10 refs., 4 tabs.

  19. Acute and Behavioral Effects of Hydrazine on ’Lepomis macrochirus’

    DTIC Science & Technology

    1978-06-01

    Geiger for their support. 1 INTRODUCTION Hydrazine, monomethyihydrazine (MMH), and unsymmetrical dimethyihydrazine (UDMH) are used as fuels in many Air...water used was a 1 : 1 dilution of tap (hard) water with in-house distilled water. The tap water was allowed to stand in plastic carboys for at least...two weeks before the supernate was siphoned off. The precipitate contained iron and other substances. Table 1 depicts the preexposure water quality

  20. HDL cholesterol quantitation by phosphotungstate-Mg2+ and by dextran sulfate-Mn2+-polyethylene glycol precipitation, both with enzymic cholesterol assay compared with the lipid research method.

    PubMed

    Warnick, G R; Mayfield, C; Benderson, J; Chen, J S; Albers, J J

    1982-11-01

    Two methods using commercial kits for high density lipoprotein (HDL) cholesterol quantitation were compared with the Lipid Research Clinics (LRC) procedures. HDL cholesterol quantitations on 50 patient specimens by the Lancer HDL cholesterol Rapid Stat Kit (Lancer) with phosphotungstate-Mg2+ precipitation and enzymic cholesterol assay averaged 424 mg/L, and by a method with dextran sulfate-Mn2+-polyethylene glycol (dextran sulfate) precipitation and enzymic cholesterol assay averaged 474 mg/L. By comparison, the LRC method (heparin-Mn2+ precipitation combined with a Liebermann-Burchard reagent cholesterol assay) averaged 478 mg/L. Supernates obtained by the three precipitation methods had similar cholesterol values when analyzed by the LRC assay, suggesting that the observed differences were primarily due to differences between the cholesterol assays. Results were consistent with underestimation by the enzymic assay of cholesterol in the supernates, offset by a positive interference of Mn2+ in the dextran sulfate-produced supernates. Among-day CVs of 4-5% were observed for the Lancer method, and 6-7% for the dextran sulfate method. Sedimentation of precipitates in hypertriglyceridemic specimens was excellent by both methods.

  1. [Using Excess Activated Sludge Treated 4-Chlorophenol Contained Waste Water to Cultivate Chlorella vulgaris].

    PubMed

    Wang, Lu; Chen, Xiu-rong; Yan, Long; He, Yi-xuan; Shi, Zhen-dong

    2015-04-01

    Using different rations of sludge extracts and supernate from 4-Chlorophenol (4-CP) simulated wastewater's excess sludge after centrifugation to cultivate the Chlorella vulgaris to achieve the goal of excess sludge utilization together with chlorella cultivating. The experiments were performed in 500 mL flasks with different rations of sludge extracts & BG-11 and supernate & BG-11 in a light growth chamber respectively. Number of algal cells, Chlorophyll, enzyme activity, oil and water total nitrogen (TN), total phosphorus (TP), total organic carbon (TOC), toxicity index were investigated. Result showed that the nutrition supplies and toxicity in the excess sludge were removed efficiently via Chlorella vulgaris, the removal rates of TN and TP were at least 40% and 90% respectively; After 10 days cultivation, the density growth of 50% sludge extracts was 20 times higher of the beginning while its chlorophyll content was lower than that of the blank group. Sludge extracts could promote the proliferation of algae, but were not conducive to the synthesis of chlorophyll. The quantity of SOD in per cell showed Chlorella vulgaris gave a positive response via stimulation from toxicant in sludge extracts and supernate. The best time for collecting chlorella vulgaris was the fifth day of cultivation, taking neutral oil accumulation as the evaluating indicator for its utilization combined with the removal of supplies and toxicity.

  2. Generation and detection of metal ions and volatile organic compounds (VOCs) emissions from the pretreatment processes for recycling spent lithium-ion batteries.

    PubMed

    Li, Jia; Wang, Guangxu; Xu, Zhenming

    2016-06-01

    The recycling of spent lithium-ion batteries brings benefits to both economic and environmental terms, but it can also lead to contaminants in a workshop environment. This study focused on metals, non-metals and volatile organic compounds generated by the discharging and dismantling pretreatment processes which are prerequisite for recycling spent lithium-ion batteries. After discharging in NaCl solution, metal contents in supernate and concentrated liquor were detected. Among results of condition #2, #3, #4 and #5, supernate and concentrated liquor contain high levels of Na, Al, Fe; middle levels of Co, Li, Cu, Ca, Zn; and low levels of Mn, Sn, Cr, Zn, Ba, K, Mg, V. The Hg, Ag, Cr and V are not detected in any of the analyzed supernate. 10wt% NaCl solution was a better discharging condition for high discharge efficiency, less possible harm to environment. To collect the gas released from dismantled LIB belts, a set of gas collecting system devices was designed independently. Two predominant organic vapour compounds were dimethyl carbonate (4.298mgh(-1)) and tert-amylbenzene (0.749mgh(-1)) from one dismantled battery cell. To make sure the concentrations of dimethyl carbonate under recommended industrial exposure limit (REL) of 100mgL(-1), for a workshop on dismantling capacity of 1000kg spent LIBs, the minimum flow rate of ventilating pump should be 235.16m(3)h(-1). Copyright © 2016 Elsevier Ltd. All rights reserved.

  3. Tank 38H Desilication Study

    SciTech Connect

    Wilmarth, W.R.

    2002-02-13

    In support of potential option for treating high level waste supernates that have elevated levels of silicon, a series of tests was performed to measure the rate of desilication of High Level Waste simulants as a function of time at an elevated temperature (50 degrees Celsius). These studies indicate that the addition of aluminate ion to typical wastes like Tank 38H supernate can reduce the soluble silicon concentration. Previous work in highly supersaturated simulants indicated reaction times would be on the order of days to weeks. In this study, we examined simulants that were only mildly supersaturated with respect to aluminosilicate formation. Because the silicon concentration was limiting, the desilication data fit to pseudo first order reaction kinetic expressions. It was determined that the reaction rate constant was affected by the degree of supersaturation. This indicated that the reaction times to complete desilication of a high level waste supernate may be much longer than expected and may approach month-long time frames at 50 degrees Celsius. Additionally, the data were examined in terms of crystal growth kinetics used by Addai-Mensah and other researchers in the aluminum industry. The order of crystal growth observed in these tests with a Tank 38H simulant was 1 and was similar to that measured for industrial simulants.

  4. Chemical species of plutonium in Hanford radioactive tank waste

    SciTech Connect

    Barney, G.S.

    1997-10-22

    Large quantities of radioactive wastes have been generated at the Hanford Site over its operating life. The wastes with the highest activities are stored underground in 177 large (mostly one million gallon volume) concrete tanks with steel liners. The wastes contain processing chemicals, cladding chemicals, fission products, and actinides that were neutralized to a basic pH before addition to the tanks to prevent corrosion of the steel liners. Because the mission of the Hanford Site was to provide plutonium for defense purposes, the amount of plutonium lost to the wastes was relatively small. The best estimate of the amount of plutonium lost to all the waste tanks is about 500 kg. Given uncertainties in the measurements, some estimates are as high as 1,000 kg (Roetman et al. 1994). The wastes generally consist of (1) a sludge layer generated by precipitation of dissolved metals from aqueous wastes solutions during neutralization with sodium hydroxide, (2) a salt cake layer formed by crystallization of salts after evaporation of the supernate solution, and (3) an aqueous supernate solution that exists as a separate layer or as liquid contained in cavities between sludge or salt cake particles. The identity of chemical species of plutonium in these wastes will allow a better understanding of the behavior of the plutonium during storage in tanks, retrieval of the wastes, and processing of the wastes. Plutonium chemistry in the wastes is important to criticality and environmental concerns, and in processing the wastes for final disposal. Plutonium has been found to exist mainly in the sludge layers of the tanks along with other precipitated metal hydrous oxides. This is expected due to its low solubility in basic aqueous solutions. Tank supernate solutions do not contain high concentrations of plutonium even though some tanks contain high concentrations of complexing agents. The solutions also contain significant concentrations of hydroxide which competes with other

  5. The aesthetic appeal of assistive technology and the economic value baby boomers place on it: A pilot study.

    PubMed

    de Jonge, Desleigh; Aplin, Tammy; Larkin, Stephen; Ainsworth, Elizabeth

    2016-12-01

    This pilot study aimed to understand the importance of assistive technology (AT) aesthetics on the intention to purchase, using grab rails as the example. Furthermore, the study explored the economic value consumers placed on aesthetic appeal. Structured interviews were conducted with 25 participants, nine female, mean age 59; where seven grab rails were presented and feedback obtained on the level of appeal and 'willingness to pay'. Responses to open-ended and fixed response questions were transcribed by the interviewer during the interview and a qualitative content analysis conducted. Positive and negative terms in relation to aesthetics were used to describe appealing and unappealing grab rails; however, all grab rails were felt to have negative aesthetic aspects by at least five participants. Physical design and finish emerged as the two main themes regarding the appeal of the grab rail designs. Participants' 'willingness-to-pay' for appealing options was mixed, with both over and under valuations. The most likely grab rails to be purchased were considered both appealing and cost effective by participants. Aesthetic appeal plays an important role in acceptance and uptake of AT. Designers and manufacturers should be encouraged to provide appealing options as the study has shown consumers prefer aesthetically appealing grab rails. However, the challenge is creating more appealing designs, without increasing cost as consumers seem to not want to pay more for them. Furthermore, clinicians need to acknowledge the importance of aesthetics when recommending interventions and be familiar with a range of options to provide clients with more choice. © 2016 Occupational Therapy Australia.

  6. Granzyme B triggers a prolonged pressure to die in Bcl-2 overexpressing cells, defining a window of opportunity for effective treatment with ABT-737.

    PubMed

    Sutton, V R; Sedelies, K; Dewson, G; Christensen, M E; Bird, P I; Johnstone, R W; Kluck, R M; Trapani, J A; Waterhouse, N J

    2012-07-05

    Overexpression of Bcl-2 contributes to resistance of cancer cells to human cytotoxic lymphocytes (CL) by blocking granzyme B (GraB)-induced mitochondrial outer membrane permeabilization (MOMP). Drugs that neutralise Bcl-2 (e.g., ABT-737) may therefore be effective adjuvants for immunotherapeutic strategies that use CL to kill cancer cells. Consistent with this we found that ABT-737 effectively restored MOMP in Bcl-2 overexpressing cells treated with GraB or natural killer cells. This effect was observed even if ABT-737 was added up to 16 h after GraB, after which the cells reset their resistant phenotype. Sensitivity to ABT-737 required initial cleavage of Bid by GraB (gctBid) but did not require ongoing GraB activity once Bid had been cleaved. This gctBid remained detectable in cells that were sensitive to ABT-737, but Bax and Bak were only activated if ABT-737 was added to the cells. These studies demonstrate that GraB generates a prolonged pro-apoptotic signal that must remain active for ABT-737 to be effective. The duration of this signal is determined by the longevity of gctBid but not activation of Bax or Bak. This defines a therapeutic window in which ABT-737 and CL synergise to cause maximum death of cancer cells that are resistant to either treatment alone, which will be essential in defining optimum treatment regimens.

  7. Increasing the effectivness of general-purpose gantry cranes

    SciTech Connect

    Kovalev, G.I.; Chekshev, A.G.; Lisin, A.A.; Shuvarov, N.I.

    1984-03-01

    This article describes the modernization of a crane for the purpose of broadening the range of loads handled. The K-6B gantry crane was equipped with interchangeable electrified lifting equipment, a GU-1.6 motorized grab bucket and an M-42B magnetic plate. It was necessary to establish the actual operating conditions of the electrical equipment and mechanisms of the crane with a grab bucket and a magnetic plate and under the existing load flow volumes. The results indicate that the operating conditions of the crane with the grab bucket and magnetic plate under existing load flows correspond to medium, and there is a significant reserve in the coefficients of utilization of the main lifting mechanism with respect to time, which makes it possible to significantly increase the load flow if necessary. The annual saving from the introduction of the crane is 26,000 rubles in handling of 20,000 tons of load.

  8. Examination of coherent surface reflection coefficient (CSRC) approximations in shallow water propagation

    NASA Astrophysics Data System (ADS)

    Williams, Kevin L.; Thorsos, Eric I.; Elam, W. T.

    2004-10-01

    The parabolic wave equation (PE) code of Rosenberg [J. Acoust. Soc. Am. 105, 144-153 (1999)] is used as a benchmark to study acoustic propagation in an ocean waveguide with a rough air/water interface. The PE results allow a close examination of the ability of a ray code [i.e., Gaussian RAy Bundle (GRAB)] to accurately estimate coherent field propagation using a coherent reflection coefficient derived from scattering theory. Comparison with PE implies that the Beckmann-Spizzichino model, as given within the GRAB software package, does not give accurate predictions of the coherent field at long ranges. Three other coherent reflection coefficient approximations are tested: the perturbation, the small slope, and the Kirchhoff approximations. The small slope approximation is the most accurate of the models tested. However, the Kirchhoff approximation is perhaps accurate enough for some purposes and would be simpler to implement as a module within GRAB. .

  9. The solubilities of significant organic compounds in HLW tanks upernate solutions - FY 1997 progress report

    SciTech Connect

    Barney, G.S.

    1997-09-16

    The solubilities of seven sodium salts of organic acids that are thought to exist in high-level waste at the Hanford Site were measured in tank supernatant simulant solutions during FY 1997. This solubility information will be used to determine if these organic salts could exist in solid phases (saltcake or sludges) in the waste where they might react violently with the nitrate or nitrite salts present in the tanks. The solubility of sodium acetate was measured in simulated waste supernate solutions at 25C, 30C, 40C, and 50C that were both unsaturated and saturated with sodium nitrate. Solubilities of sodium glycolate, citrate, ethylenediaminetetraacetate (EDTA), nitrilotriacetate (NTA), formate, and oxalate were measured in simulated waste supernate solutions that were saturated with sodium nitrate. In addition, solubilities of sodium EDTA, citrate, glycolate, and NTA were measured in a complex waste matrix. The organic compounds were selected because they are expected to exist in relatively high concentrations in the tanks. The solubilities of sodium glycolate citrate, EDTA, NTA, and formate were high over the temperature and sodium hydroxide concentration ranges expected in the tanks. The solubility of sodium oxalate in solutions saturated with sodium nitrate were quite low. The presence of additional sodium in the waste simulant solutions that were saturated with sodium nitrate slightly lowered the solubilities of each of the organic salts. Solubilities were, however, high enough to prevent solid sodium salts of all the organic acids from precipitating from tank supernate solutions, except for sodium oxalate. The total organic carbon concentrations (TOC) of actual tank supernates are generally much lower than the TOC ranges for the simulated supernate solutions saturated (at the solubility limit) with the organic salts. This is true even if all the dissolved carbon in a given tank supernate is due to only one of these soluble compounds (an unlikely situation

  10. Characterization of Radionuclides in Purex Waste Sludges from the F-Area High Level Waste Tanks (U)

    SciTech Connect

    Obryant, R

    2005-06-13

    Sludge-contaminated waste consists of waste contaminated with both insoluble species (the sludge fraction) and entrained supernate. The WCS is based on the assumption that approximately 70% of the weight of what is commonly referred to as sludge is interstitial supernate; the remaining approximately 30% consists of the insoluble species (Reference 1). Development of a method for characterization of sludge-contaminated waste must consider both fractions. Separate waste cuts may contain sludge and supernate fractions in varying proportions due to the nature of the job generating the waste and the variability in waste handling techniques. Development of a distribution representative of all sludge-contaminated waste cuts must allow for varying fractions of sludge and supernate contamination. This document will develop a radionuclide distribution in accordance with the methodology outlined in WSRC 1S SRS Waste Acceptance Criteria Manual, Procedure 2.02, Revision 8 for the sludge fraction of sludge-contaminated waste generated in the F-Area Tank Farm This distribution was based on the assumption that sludge-contaminated waste from F-Area Tank Farm Waste Tanks could be co-mingled, and the actual contamination present on waste in a series of containers from these tanks will be representative of the mean radionuclide distribution. The original characterization was based primarily on process knowledge and fill histories (Reference 6). A single, comprehensive characterization for supernate has been developed previously (Reference 9). This document also describes the methodology for application of radionuclide distributions representative of the sludge and supernate fractions of sludge-contaminated waste to individual waste packages. Most of the waste contaminated with sludge from the F-Area Tank Farm will be categorized as Low Level Waste (LLW) and disposed of in the E-area trenches. The waste does, however, have the potential to be categorized as TRU and/or mixed waste

  11. Bottom Backscattering Strengths Measured in Shallow and Deep Water

    DTIC Science & Technology

    2017-01-18

    Geological Survey (BGS) bottom type (Fig. 5-2) and bottom- grab information (Sect. 5.C) also shown, (No grab information for Sites 7, 13 and 17 other...Space and Naval Warfare Systems Command (SPAWAR) PMW-182. REFERENCES 1. British Geological Survey, “PEACH” (Sheet 56N 10W) and “TIREE” (Sheet 56N...08W) Sea Bed Sediment maps (1: 250 000 Series), National Environmental Resource Council (NERC), 1990 and 1988 (resp.). © NERC. 2. Davis, N.R

  12. Boildown Study on Supernatant Liquid Retrieved from AW-106 in December 2012

    SciTech Connect

    Page, Jason S.

    2013-06-04

    This document reports the results of a boildown study using a composite created from supernatant liquid grab samples retrieved from tank 241-AW-106 in December of 2012. The composite was made using predetermined volumes of the grab samples which accounted for layering of the supernatant liquid in the tank. The finished composite was a clear, yellow liquid containing no visible solids at hot cell ambient temperatures (24 - 27 °C). The density of the test composite was measured in the hot cell immediately before the boildown study and was 1.266 g/mL at 27.1 °C.

  13. CrossTalk: The Journal of Defense Software Engineering. Volume 19, Number 10

    DTIC Science & Technology

    2006-10-01

    because it usually goes unnoticed when we do it with a nat- ural limb. For instance, when we grab an egg , we do not think about how hard we should grasp...Instead, our nervous system automatically takes care of that for us so that we can grab the egg without breaking or dropping it. The dashed gray...state departments can think in terms of dollars, but during the kind of lean times DFG was facing it had to scramble for every penny. The need for a

  14. Compliance with the Nevada Test Site`s waste acceptance criteria for vitrified cesium-loaded crystalline silicotitanate (CST)

    SciTech Connect

    Harbour, J.R.; Andrews, M.K.

    1997-12-31

    Oak Ridge National Laboratory (ORNL) and Savannah River Technology Center (SRTC) are involved in a joint project for immobilization of radionuclides from the Melton Valley Storage Tanks (MVST) at Oak Ridge (OR). The supernate from Tank W-29 of the MVST will be treated by passage through a crystalline silicotitanate (CST) ion exchange medium. The CST was designed to sorb cesium, the primary radio nuclide (Cs-137) in the supernate of MVST`s. A smaller amount of strontium (Sr-90) will also be sorbed. This demonstration will be performed by ORNL. One column volume of cesium-loaded CST ({approximately}10 gallons or 38 liters) will then be shipped to SRTC where it will be mixed with glass formers and fed as an aqueous slurry to a joule-heated melter within the SRTC Shielded Cells. A borosilicate glass formulation which will incorporate the CST has been developed as part oft SRTC`s role in this project. The molten glass ({approximately}1150{degrees}C) will be poured into 500 ml stainless steel beakers which in turn will be placed in 30 gallon drums for disposal. An import&f part of this project is to demonstrate that the glass waste form produced will meet the Waste Acceptance Criteria (WAC) for disposal at the Nevada Test Site (NTS). If vitrification of the cesium-loaded CST is implemented as the immobilization method for all of the MVST supernate, then it is essential to demonstrate that the waste can be disposed of at an acceptable disposal facility. NTS accepts low-level radioactive waste as long as it is not TRU and not hazardous. This paper documents the efforts in the development stage of this work to integrate the requirements of NTS into the formulation and processing efforts. This work is funded by the Tank Focus Area with additional funding for ORNL provided by EM-30 at OR.

  15. Wastewater Triad Project: Solid-Liquid Separator FY 2000 Deployment

    SciTech Connect

    Walker, J.F.

    2001-01-11

    The Wastewater Triad Project (WTP) consists of three operational units: the cesium removal (CsR) system, the out-of-tank evaporator (OTE) system, and the solid/liquid separation (SLS) system. These systems were designed to reduce the volume and radioactivity of low-level liquid waste (LLLW) stored in the Melton Valley Storage Tanks (MVSTs) and are operated independently or in series in order to accomplish the treatment goals. Each is a modular, skid-mounted system that is self-contained, individually shielded, and designed to be decontaminated and removed once the project has been completed. The CsR and OTE systems are installed inside Building 7877; the SLS system is installed adjacent to the east side of the MVST 7830 vault cover. The CsR, which consists of ion-exchange equipment for removing {sup 137}Cs from LLLW, was demonstrated in 1997. During the Cesium Removal Demonstration, 30,853 gal of radioactive supernate was processed and 1142 Ci of {sup 137}Cs was removed from the supernate and loaded onto 70 gal of a crystalline silicotitanate sorbent manufactured by UOP, Inc. The OTE system is a subatmospheric single-stage evaporator system designed to concentrate LLLW to smaller volumes. It was previously demonstrated in 1996 and was operated in 1998 to process about 80,000 gal of LLLW. The SLS system was designed to filter and remove suspended solids from LLLW in order to minimize further accumulation of sludge in new storage tanks or to prevent fouling of CsR and OTE systems. The SLS was installed and demonstrated in 1999; {approximately}45,000 gal of radioactive supernate was processed during the demonstration.

  16. Thermal and Chemical Stability of Crystalline Silicotitanate Sorbent

    SciTech Connect

    Taylor, P.A.

    2000-10-04

    The Savannah River Site (SRS) is evaluating technologies for removing radioactive cesium ({sup 137}Cs) from the supernate solutions stored in the high-level waste tanks at the site. Crystalline silicotitanate sorbent (IONSIV IE-911,{reg_sign} UOP LLC, Des Plaines, IL), which is very effective at removing cesium from high-salt solution, is one of three technologies currently being tested. Because of the extremely high inventory of {sup 137}Cs expected for the large columns of crystalline silicotitanate (CST) that would be used for treating the SRS supernate, any loss of flow or cooling to the columns could result in high temperatures from radiolytic heating. Also, even for normal operation, the CST would be exposed to the supernates for up to a year before being removed. Small-scale tests using simulant solutions were used to determine the long-term stability of the CST to the solutions at various temperatures. In the tests performed in this study, the cesium capacity of the CST decreased significantly (76%) as the temperature of the simulant and CST during loading was increased from 23 to 80 C. CST exposed to recirculating SRS average simulant solution at room temperature in a column test showed a slow decrease in cesium loading capacity (measured at 23 C), with a drop of 30% for CST from the top of the bed and 13% for CST from the bottom of the bed after a 12-month period of exposure. A similar column test using a high-pH salt solution did not show any change in the cesium capacity of the CST. An increase was noted in pressure drop through the column using average simulant, but no change was observed for the column using high-pH salt solution.

  17. Investigation of liquid instrusion in 241-BX-103

    SciTech Connect

    Dasgupta, A.

    1995-10-05

    Although SST 241-BX-103 is classified as being interim stabilized and intrusion prevented, FIC readings have indicated the tank`s surface level to be increasing in a `step like` fashion even after the completion of intrusion prevention activities. This letter report discusses the finding of an investigation conducted to (i) determine if liquid intrusion (rather than other potential causes such as a change in the waste`s physiochemical properties, instrumentation error, etc.) was responsible for the increase in the surface level and if so, (ii) recommend a likely course of action to pursue if the tank`s supernate volume is exceeding the interim stabilization criterion. Engineering judgement (supplemented by analysis of historical tank data, tank video and photographs) was used to determine the extent to which the rise in the surface level could be attributed to various types of liquid intrusion and/or other phenomena. It was concluded that the rise in BX-103`s surface level was indeed real (and most likely caused by liquid intrusion), and that the tank`s supernate volume was exceeding the interim stabilization criterion of 5000 gallons. However the tank`s surface level has remained fairly constant since August 1993. It was recommended that tank BX-103 be left `as is` for the moment and continued being monitored. Pumping of BX-103 was recommended only under one of the following circumstances: (i) the tank leaks, (ii) the tank is once again subject to significant liquid intrusion in the future, or (iii) it is decided that all supernate be removed from a SST prior to retrieval of the tank`s solid waste

  18. Uranium solubility studies during waste evaporation

    SciTech Connect

    Karraker, D.G.

    1993-08-16

    The liquid waste streams from chemical processing of reactor-irradiated targets and fuel are neutralized with excess NaOH and discharged to mild steel waste tanks for interim storage. To reduce the number of tanks required, and thus the cost of waste storage, the supernate is evaporated to about 70% solids, discharged while hot into clean waste tanks. As the solution cools, solids crystallize from the saturated solution and form a solid layer on the bottom of the tank. The supernate is re-evaporated to concentrate the volume further. Evaporation and crystallization are continued until, for tank 41, the tank is almost filled with crystallized salts. In the DWPF processing scheme, these salts will be redissolved in water and {sup 137}Cs precipitated with sodium tetraphenylborate in the in-tank precipitation facility. The decontaminated supernate is now mixed with cement and stored as a solid monolith; the precipitated Cs and the base-insoluble solids are encapsulated in glass for permanent storage. Questions have been raised about the nuclear safety of these operations, particularly for tank 41, where the waste source was waste from the H-Area fuel processing. One scenario for a potential nuclear accident considers that the salts in tank 41 would dissolve in water, but the enriched uranium solids would not dissolve. The uranium is hypothesized to settle to the bottom of the tank and become concentrated enough to reach a critical mass. A second scenario, promulgated by West Valley, is that uranium would precipitate in the evaporator and form a critical mass in the evaporator. To shed some light on the probable behavior of U in the waste system, the solubility of U in synthetic waste was studied. The results are reported here.

  19. Growth performance of early-weaned pigs is enhanced by feeding epidermal growth factor-expressing Lactococcus lactis fermentation product.

    PubMed

    Bedford, Andrea; Huynh, Evanna; Fu, Molei; Zhu, Cuilan; Wey, Doug; de Lange, Cornelis; Li, Julang

    2014-03-10

    We have previously generated epidermal growth factor expressing Lactococcus lactis (EGF-LL) using bioengineering approach, and shown that feeding newly-weaned piglets EGF-LL improves digestive function. To address concerns over the use of genetically modified organisms (GMO), the objective of the current study was to investigate the effect of feeding the EGF-LL fermentation product, after removal of the genetically modified EGF-LL, on growth performance and intestine development of newly-weaned piglets. One hundred and twenty newly-weaned piglets were fed ad libitum according to a 2-phase feeding program. Four pens were assigned to each of three treatments: (1) complete EGF-LL fermentation product (Ferm), (2) supernatant of EGF-LL fermentation product, after removal of EGF-LL (Supern), or (3) blank M17GE media (Control). EGF-LL or its fermented supernatant was administrated to piglets in the first 3 weeks post-weaning; their growth performance was monitored throughout treatment, and for the following week. Daily body weight gain (254.8g vs. 200.5g) and Gain:Feed (0.541kg/kg vs. 0.454kg/kg) of pigs on the Supern group were significantly improved compared to that of Control, although no difference was observed between the Ferm and Control pigs. Intestinal sucrase activity was increased in Supern- compared to Control group (166.3±62.1 vs. 81.4±56.5nmol glucose released/mg protein; P<0.05). The lack of growth response with Ferm pigs may be attributed to an overload of bacteria (daily dose included 4.56×10(10)CFU/kg BW/day EGF-LL). These results suggest that GMO-free EGF-LL fermentation product is effective in increasing growth performance of early-weaned piglets.

  20. SCOPING STUDIES TO DEVELOP A METHOD TO DETERMINE PARTICLE SIZE IN SIMULANT SLUDGE SLURRIES BY SIEVING

    SciTech Connect

    DAMON, CLICK

    2005-02-07

    A physical separation method (i.e. sieving) was investigated to determine particle size distribution in non-radioactive sludge slurry simulants with the goal of implementation into the SRNL (Savannah River National Laboratory) shielded cells for use with radioactive sludge slurries. The investigation included obtaining the necessary experimental equipment, developing accessory equipment for use with the sieve shaker (to be able to sieve simulant slurries with aqueous solutions), sieving three different simulant slurries through a number of sieves and determining the particle size distribution gravimetrically, and developing a sufficient cleaning protocol of the sieves for re-use. The experimental protocol involved successive sieving of a NIST standard (to check the particle size retention of the sieves) and three non-radioactive slurry simulants (Batch 3 Tank 40 Test 3, Tank 40 Drum 3 and CETL Sludge Batch 2, which had been previously characterized by Microtrac analysis) through smaller and smaller sieves (150 microns x 5 microns) via use of the wet sieving system or by hand. For each of the three slurries, duplicate experiments were carried out using filtered supernate and DI water (to check the accuracy of the method versus Microtrac data) to sieve the slurry. Particle size determinations using the wet sieving system with DI water agree well with Microtrac data on a volume basis and in some cases the sieving data may be more accurate particularly if the material sieved had large particles. A correction factor had to be applied to data obtained from experiments done with supernate due to the dissolved solids which dried upon the sieves in the drying stage of the experiments. Upon subtraction of the correction factors, the experimental results were very similar to those obtained with DI water. It should be noted that approximately 250 mL of each of three simulant slurries was necessary to have enough filtered supernate available to carry out the experiments. The

  1. Degradation of bacterial lipopolysaccharide by the slime mould Physarum polycephalum.

    PubMed

    Saddler, J N; Coote, J G; Wardlaw, A C

    1979-02-01

    A strain of the acellular slime mould Physarum polycephalum degraded lipopolysaccharides (LPS) from a variety of bacteria. The anticomplementary (AC) activity of LPS was greatly reduced, as was the content of lauric, myristic, and palmitic acids, and the ability to sensitize erythrocytes to agglutination by antibody. These results indicate that Physarum has enzymes which reduce the lipid A moiety of LPS. In contrast, 2-keto-3-deoxy-D-manno-actanoic acid (KDO), immunodominant sugars, and beta-hydroxymyristic acid were scarcely affected. Both supernates and plasmodial extracts of Physarum had LPS-degradative activity and were able to attack both purified LPS and LPS in killed bacteria.

  2. Mixing Envelope D Sludge with LAW Intermediate Products with and without Glass Formers

    SciTech Connect

    Hansen, E.K.

    2001-09-21

    The Department of Energy (DOE) Office of River Protection is in the process of designing a waste treatment system to process the Hanford Reservation High Level Waste (HLW). Envelope D sludge slurries will be blended with the concentrated Cs/Ts eluates, and the Sr/TRU intermediates separated from Envelope A, B, and C feeds. This study produced two washed simulated sludges (representing tanks 241-AZ-101 and 241-AZ-102 sludge), a Sr/TRU washed precipitate produced from tank 241-AN-107 simulant, and a concentrated blended eluate simulant based upon eluates from processing 241-AZ-102 supernate.

  3. DEPOSITION TANK CORROSION TESTING FOR ENHANCED CHEMICAL CLEANING POST OXALIC ACID DESTRUCTION

    SciTech Connect

    Mickalonis, J.

    2011-08-29

    An Enhanced Chemical Cleaning (ECC) process is being developed to aid in the high level waste tank closure at the Savannah River Site. The ECC process uses an advanced oxidation process (AOP) to destroy the oxalic acid that is used to remove residual sludge from a waste tank prior to closure. The AOP process treats the dissolved sludge with ozone to decompose the oxalic acid through reactions with hydroxyl radicals. The effluent from this oxalic acid decomposition is to be sent to a Type III waste tank and may be corrosive to these tanks. As part of the hazardous simulant testing that was conducted at the ECC vendor location, corrosion testing was conducted to determine the general corrosion rate for the deposition tank and to assess the susceptibility to localized corrosion, especially pitting. Both of these factors impact the calculation of hydrogen gas generation and the structural integrity of the tanks, which are considered safety class functions. The testing consisted of immersion and electrochemical testing of A537 carbon steel, the material of construction of Type III tanks, and 304L stainless steel, the material of construction for transfer piping. Tests were conducted in solutions removed from the destruction loop of the prototype ECC set up. Hazardous simulants, which were manufactured at SRNL, were used as representative sludges for F-area and H-area waste tanks. Oxalic acid concentrations of 1 and 2.5% were used to dissolve the sludge as a feed to the ECC process. Test solutions included the uninhibited effluent, as well as the effluent treated for corrosion control. The corrosion control options included mixing with an inhibited supernate and the addition of hydroxide. Evaporation of the uninhibited effluent was also tested since it may have a positive impact on reducing corrosion. All corrosion testing was conducted at 50 C. The uninhibited effluent was found to increase the corrosion rate by an order of magnitude from less than 1 mil per year (mpy

  4. Recovery of transplutonium elements from nuclear reactor waste

    DOEpatents

    Campbell, David O.; Buxton, Samuel R.

    1977-05-24

    A method of separating actinide values from nitric acid waste solutions resulting from reprocessing of irradiated nuclear fuels comprises oxalate precipitation of the major portion of actinide and lanthanide values to provide a trivalent fraction suitable for subsequent actinide/lanthanide partition, exchange of actinide and lanthanide values in the supernate onto a suitable cation exchange resin to provide an intermediate-lived raffinate waste stream substantially free of actinides, and elution of the actinide values from the exchange resin. The eluate is then used to dissolve the trivalent oxalate fraction prior to actinide/lanthanide partition or may be combined with the reprocessing waste stream and recycled.

  5. High-level waste tank modifications, installation of mobilization equipment/check out

    SciTech Connect

    Schiffhauer, M.A.; Thompson, S.C.

    1992-08-31

    PUREX high-level waste (HLW) is contained at the West Valley Demonstration Project (WVDP) in an underground carbon-steel storage tank. The HLW consists of a precipitated sludge and an alkaline supernate. This report describes the system that the WVDP has developed and implemented to resuspend and wash the HLW sludge from the tank. The report discusses Sludge Mobilization and Wash System (SMWS) equipment design, installation, and testing. The storage tank required modifications to accommodate the SMWS. These modifications are discussed as well.

  6. EVALUATION OF ALTERNATIVE STRONIUM AND TRANSURANIC SEPARATION PROCESSES

    SciTech Connect

    SMALLEY CS

    2011-04-25

    In order to meet contract requirements on the concentrations of strontium-90 and transuranic isotopes in the immobilized low-activity waste, strontium-90 and transuranics must be removed from the supernate of tanks 241-AN-102 and 241-AN-107. The process currently proposed for this application is an in-tank precipitation process using strontium nitrate and sodium permanganate. Development work on the process has not proceeded since 2005. The purpose of the evaluation is to identify whether any promising alternative processes have been developed since this issue was last examined, evaluate the alternatives and the baseline process, and recommend which process should be carried forward.

  7. Gunite and associated tanks remediation project recycling and waste minimization effort

    SciTech Connect

    Van Hoesen, S.D.; Saunders, A.D.

    1998-05-01

    The Department of Energy`s Environmental Management Program at Oak Ridge National Laboratory has initiated clean up of legacy waste resulting from the Manhattan Project. The gunite and associated tanks project has taken an active pollution prevention role by successfully recycling eight tons of scrap metal, reusing contaminated soil in the Area of Contamination, using existing water (supernate) to aid in sludge transfer, and by minimizing and reusing personal protective equipment (PPE) and on-site equipment as much as possible. Total cost savings for Fiscal Year 1997 activities from these efforts are estimated at $4.2 million dollars.

  8. Project W-320, 241-C-106 sluicing: Piping calculations. Volume 2

    SciTech Connect

    Bailey, J.W.

    1998-07-25

    This supporting document has been prepared to make the FDNW calculations for Project W-320 readily retrievable. The objectives of this calculation are (1) To perform static and Safety Class 2 dynamic stress analysis of the Slurry and Supernate Process (inner) piping connecting Tanks 241-C-106 and 241-AY-102 in order to be in compliance with the Code requirements; (2) To assure the thermal expansion of the process pipe not be strained by the outer encasement pipe; and (3) To furnish process pipe support to the Civil Engineering group.

  9. Functional design criteria, Project W-211, Initial Tank Retrieval Systems. Revision 1

    SciTech Connect

    Rieck, C.A.

    1995-02-07

    This document provides the technical baseline for retrieval of waste from ten double-shell tanks in the SY, AN, AP, AW, AY, and AZ tank farms. In order to retrieve waste from these tanks, systems are needed to mix the sludge with the supernate and pump the waste mixture from the tank. For 101-SY, the existing mitigation pump will be used to mix the waste and Project W-211 will provide for waste removal. The retrieval scope for the other nine tanks includes both the waste mixing and removal functions.

  10. Studies of Altered Response to Infection Induced by Thermal Injury.

    DTIC Science & Technology

    1980-01-01

    trypsin inhibitor (SBI), an inhibitor of plasmin. After all the PA is released in these cultures, the cells are washed and fresh AT-FBS media or SBI media ...supernate CPM’s of 1251-fibrin are corrected for media and non-specific radioactivity release by subtraction of CPM’s from no cell controls. The CP1,i’s of...calculated for each pool of duplicate background plaques and expressed as AFC/10 6 recovered spleen cells. Allogeneic conditioned media is produced as

  11. Task Technical and Quality Assurance Plan for the Characterization of the Tank 40H Samples

    SciTech Connect

    Wilmarth, W.R.

    2000-07-12

    The High Level Waste Tank Farms store and process high-level liquid wastes from a number of sources including F- and H-Canyons and a recycle stream from the Defense Waste Processing Facility (DWPF). The deposition of sodium aluminosilicate along with sodium diuranate in the 242-16H evaporator system led to the removal of authorization to process High Level Waste containing DWPF recycle. Therefore, High Level Waste Engineering has requested SRTC to perform analysis of the contents of Tank 40H and associated transfers from sludge washing to ensure silicon levels are sufficiently low to allow processing of the supernate through the 3H Evaporator.

  12. Chemical derivation to enhance the chemical/oxidative stability of resorcinol-formaldehyde (R-F) resin

    SciTech Connect

    Hubler, T.L.; Shaw, W.J.; Brown, G.N.; Linehan, J.C.; Franz, J.A.; Hart, T.R.; Hogan, M.O.

    1996-09-01

    Tank wastes at Hanford and SRS contain highly alkaline supernate solutions of conc. Na, K nitrates with large amounts of {sup 137}Cs. It is desirable to remove and concentrate the highly radioactive fraction for vitrification. One candidate ion exchange material for removing the radiocesium is R-F resin. This report summarizes studies into synthesis and characterization of 4-derivatized R-F resins prepared in pursuit of more chemically/oxidatively robust resin. 85% 4-fluororesorcinol/15% phenol formaldehyde resin appears to have good stability in alkaline solution, although there may be some nucleophilic displacement reaction during synthesis; further studies are needed.

  13. SLUDGE TREATMENT PROJECT ENGINEERED CONTAINER RETRIEVAL AND TRANSFER SYSTEM PRELMINARY DESIGN HAZARD AND OPERABILITY STUDY

    SciTech Connect

    CARRO CA

    2011-07-15

    This Hazard and Operability (HAZOP) study addresses the Sludge Treatment Project (STP) Engineered Container Retrieval and Transfer System (ECRTS) preliminary design for retrieving sludge from underwater engineered containers located in the 105-K West (KW) Basin, transferring the sludge as a sludge-water slurry (hereafter referred to as 'slurry') to a Sludge Transport and Storage Container (STSC) located in a Modified KW Basin Annex, and preparing the STSC for transport to T Plant using the Sludge Transport System (STS). There are six, underwater engineered containers located in the KW Basin that, at the time of sludge retrieval, will contain an estimated volume of 5.2 m{sup 3} of KW Basin floor and pit sludge, 18.4 m{sup 3} of 105-K East (KE) Basin floor, pit, and canister sludge, and 3.5 m{sup 3} of settler tank sludge. The KE and KW Basin sludge consists of fuel corrosion products (including metallic uranium, and fission and activation products), small fuel fragments, iron and aluminum oxide, sand, dirt, operational debris, and biological debris. The settler tank sludge consists of sludge generated by the washing of KE and KW Basin fuel in the Primary Clean Machine. A detailed description of the origin of sludge and its chemical and physical characteristics can be found in HNF-41051, Preliminary STP Container and Settler Sludge Process System Description and Material Balance. In summary, the ECRTS retrieves sludge from the engineered containers and hydraulically transfers it as a slurry into an STSC positioned within a trailer-mounted STS cask located in a Modified KW Basin Annex. The slurry is allowed to settle within the STSC to concentrate the solids and clarify the supernate. After a prescribed settling period the supernate is decanted. The decanted supernate is filtered through a sand filter and returned to the basin. Subsequent batches of slurry are added to the STSC, settled, and excess supernate removed until the prescribed quantity of sludge is collected

  14. AEA Fluidic Pulse Jet Mixer. Innovative Technology Summary Report

    SciTech Connect

    1999-08-01

    AEA's Fluidic Pulse Jet Mixer was developed to mix and maintain the suspension of solids and to blend process liquids. The mixer can be used to combine a tank's available supernate with the sludge into a slurry that is suitable for pumping. The system uses jet nozzles in the tank coupled to a charge vessel. Then, a jet pump creates a partial vacuum in the charge vessel allowing it to be filled with waste. Next, air pressure is applied to the charge vessel, forcing sludge back into the tank and mixing it with the liquid waste. When the liquid waste contains 10% solids, a batch is pumped out of the tank.

  15. Metabolism Studies on WR-158,122 in Bile Duct Cannulated Rats and Monkeys.

    DTIC Science & Technology

    1981-02-16

    quantities of the 4 milled feces samples were placed in 15 ml grad- uated centrifuge tubes and extracted three tir.es with 5 ml THF as follows: tubes...were shaken for 15 min on an automatic shaker, centrifuged for 10 min and each solvent layer poured into a LSC vial. The TIC was evaporated wit N2 in a...were centrifuged for 30 min. The supernates were poured into LSC vials and counted in 15 ml of Biofluor. Results THF extracted almost the save dpm/mg

  16. ELECTROCHEMICAL CORROSION TESTING OF TANKS 241-AN-102 & 241-AP-107 & 241-AP-108 IN SUPPORT OF ULTRASONIC TESTING

    SciTech Connect

    WYRWAS RB; DUNCAN JB

    2008-11-20

    This report presents the results of the corrosion rates that were measured using electrochemical methods for tanks 241-AN-102 (AN-102), 241-AP-107 (AP 107), and 241-AP-108 (AP-108) performed under test plant RPP-PLAN-38215. The steel used as materials of construction for AN and AP tank farms was A537 Class 1. Test coupons of A537 Class 1 carbon steel were used for corrosion testing in the AN-107, AP-107, and AP-108 tank waste. Supernate will be tested from AN-102, AP-107, and Ap-108. Saltcake testing was performed on AP-108 only.

  17. Analysis Of Tank 38H (HTF-38-14-6, 7) And Tank 43H (HTF-43-14-8, 9) Samples For Support Of The Enrichment Control And Corrosion Control Programs

    SciTech Connect

    Martino, C. J.

    2014-02-27

    SRNL performed analysis on Tanks 38H and 43H surface and subsurface supernate samples to support ECP and CCP. The U-235 mass divided by the total U mass ranged from 0.0059 to 0.0060. Uranium concentration ranged from 53.1 mg/L in the Tank 43H surface sample to the 85.1 mg/L in the Tank 38H subsurface sample. The U-235/U and uranium concentration are in line with the prior 2H-Evaporator System ECP samples.

  18. 40 CFR 91.413 - Exhaust sample procedure-gaseous components.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Procedures § 91.413 Exhaust sample procedure—gaseous components. (a) Automatic data collection equipment requirements. The analyzer response may be read by automatic data collection (ADC) equipment such as computers, data loggers, etc. If ADC equipment is used the following is required: (1) For dilute grab (“bag...

  19. 40 CFR 91.413 - Exhaust sample procedure-gaseous components.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Procedures § 91.413 Exhaust sample procedure—gaseous components. (a) Automatic data collection equipment requirements. The analyzer response may be read by automatic data collection (ADC) equipment such as computers, data loggers, etc. If ADC equipment is used the following is required: (1) For dilute grab (“bag...

  20. 40 CFR 91.413 - Exhaust sample procedure-gaseous components.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Procedures § 91.413 Exhaust sample procedure—gaseous components. (a) Automatic data collection equipment requirements. The analyzer response may be read by automatic data collection (ADC) equipment such as computers, data loggers, etc. If ADC equipment is used the following is required: (1) For dilute grab (“bag...

  1. 40 CFR 91.413 - Exhaust sample procedure-gaseous components.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Procedures § 91.413 Exhaust sample procedure—gaseous components. (a) Automatic data collection equipment requirements. The analyzer response may be read by automatic data collection (ADC) equipment such as computers, data loggers, etc. If ADC equipment is used the following is required: (1) For dilute grab (“bag...

  2. A Look Ahead: Supreme Court Likely to Have a Blockbuster Term

    ERIC Educational Resources Information Center

    Hawke, Catherine

    2013-01-01

    It is not often that Supreme Court watchers agree; however, right now, it seems that most agree on one thing: the Supreme Court term that started in October 2013 is going to be a blockbuster. The docket over the last couple of years has had more than its fair share of headline-grabbing cases, from gay marriage to Obamacare to the Voting Rights…

  3. Trends & Indicators: Enrollment Period

    ERIC Educational Resources Information Center

    Harney, John O.

    2011-01-01

    Since New England Board of Higher Education (NEBHE) began publishing tables and charts exploring "Trends & Indicators" in New England higher education more than a half-century ago, few figures have grabbed as much attention as college "enrollment" data. These local, state, regional and national data go beyond simple…

  4. 26. INSIDE THE 'DOG HOUSE' AT THE REAR END OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    26. INSIDE THE 'DOG HOUSE' AT THE REAR END OF THE WALKING BEAM. HERE ARE HOUSED THE HOIST ENGINE, WHICH CONTROLS MOVEMENT OF THE BEAM; AND THE ENGINES THAT CONTROL THE OPENING AND CLOSING AND SWIVEL OF THE GRAB BUCKET. - Pennsylvania Railway Ore Dock, Lake Erie at Whiskey Island, approximately 1.5 miles west of Public Square, Cleveland, Cuyahoga County, OH

  5. Collection Development. Stocking Library Shelves for Student Success: Motivating Readers through Science-Focused Fun

    ERIC Educational Resources Information Center

    Fleishhacker, Joy

    2017-01-01

    By providing a wide selection of high-quality materials that will grab the attention of individual readers, school libraries can play an integral part in initiating and supporting student agency and a student-centered approach to learning. Such materials should not only address and expand upon what kids are learning in the classroom, but also…

  6. School Bus Safety: What Can Our Schools Do to Protect Our Children?

    ERIC Educational Resources Information Center

    Dargan, Thomas J.; Silverstone, Adam H.

    2014-01-01

    School districts and school bus contractors are entrusted with the most important of all road users--our nation's children. In the wake of recent newsworthy accidents and attention grabbing headlines regarding unfit bus drivers, claims premised upon school bus accidents have become increasingly tangential and, in turn, personal injury attorneys…

  7. VOLATILE ORGANIC COMPOUNDS MEASUREMENTS IN NEW YORK CITY IN RESPONSE TO THE EVENTS OF 9/11

    EPA Science Inventory

    From September 22, 2001 through February 2002, ambient air was sampled in lower Manhattan, New York at three sites within a block of ground zero and at a fourth site 500-m northwest of the World Trade Center. Over 190 grab samples were collected in evacuated, electro-polished s...

  8. Integrating the Curriculum: Faux Fall Repousse

    ERIC Educational Resources Information Center

    Kernan, Christine

    2012-01-01

    When introducing a new unit, art teachers know that sometimes a little "bling" can really grab students' attention. The author received "ooohs" and "aaahs" from her fourth-graders when they learned they would be creating "Faux Fall Repousse." The dazzling shine of the aluminum foil and the beautiful array of autumnal colors were impossible for…

  9. A Year in Review 2006

    ERIC Educational Resources Information Center

    Diverse: Issues in Higher Education, 2006

    2006-01-01

    "Summers To Step Down, Ending Tumult at Harvard" kicked off in 2006 as one of the most talked about news stories in higher education. Only a few months later, an event involving another elite institution would grab even more headlines, and with more serious ramifications. Three Duke University men's lacrosse players were indicted on rape…

  10. Environmental Stewardship through Service Learning

    ERIC Educational Resources Information Center

    Kaye, Cathryn Berger

    2011-01-01

    New school buildings often grab headlines that highlight their green features and LEED (Leadership in Energy and Environmental Design) certification, yet nearly 90% of schools in the United States were built before 1985, with the largest portion built from 1950-69 to accommodate the baby boom generation (National Clearinghouse for Educational…

  11. Teaching the Great War through Peace

    ERIC Educational Resources Information Center

    Shortell, Catherine K.; Paddock, Troy R. E.

    2011-01-01

    With all of the time constraints and institutional pressures that teachers face, it may seem odd to suggest using an anomalous event such as the Christmas Truce to study the first World War. However, the uniqueness of this event helps grab the attention of students and, as the authors demonstrate, can be used both to illustrate the common…

  12. Collection and measurement of atmospheric contaminants during Skylab AM/MDA unmanned altitude chamber test

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The analytical data obtained from both cryogenic and grab sampling of the atmosphere of the Skylab AM/MDA during an 84 hour unmanned chamber run are reported. The level of contaminants found at different points of the test chamber are tabulated. The results indicate that there was no clear trend of increasing or decreasing contaminant levels during the test run.

  13. 40 CFR 419.24 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... example in subpart D, § 419.42(b)(3). (c) The provisions of § 419.14(c) apply to discharge of process... not exceed 15 mg/l oil and grease based upon an analysis of any single grab or composite sample....

  14. Revisiting First-Year Teacher Burnout: New South Carolina Educators in the Era of Accountability

    ERIC Educational Resources Information Center

    Ilagan, Daniel J.

    2010-01-01

    Forty-six percent of the nation's teachers are expected to leave the profession by their fifth year in the classroom. This alarming statistic has grabbed the attention of federal, state, and local leaders. In South Carolina alone, 28,500 teachers left the profession in the last five years, or an average of 5,700 per year. This translates to a…

  15. STEM Education: A Deficit Framework for the Twenty First Century? A Sociocultural Socioscientific Response

    ERIC Educational Resources Information Center

    Zeidler, Dana L.

    2016-01-01

    The ubiquitous of STEM education initiatives in recent years has created a bandwagon that has moved at nearly light speed. The impulse of the science education community and policy-makers is to grab hold for dear life or be marginalized from subsequent discussions about the necessity and consequences of using STEM initiatives to prepare and inform…

  16. Secrets in Full View: Sexual Harassment in Our K-12 Schools.

    ERIC Educational Resources Information Center

    Stein, Nan

    Sexual harassment can range from touching, tickling, pinching, patting, or grabbing; to comments about one's body; to sexual remarks, innuendoes, and jokes that cause discomfort; to obscene gestures, staring, or leering; to assault and rape. This paper addresses student testimonies of harassment, provides a profile of harassment behaviors, and…

  17. A Year in Review 2006

    ERIC Educational Resources Information Center

    Diverse: Issues in Higher Education, 2006

    2006-01-01

    "Summers To Step Down, Ending Tumult at Harvard" kicked off in 2006 as one of the most talked about news stories in higher education. Only a few months later, an event involving another elite institution would grab even more headlines, and with more serious ramifications. Three Duke University men's lacrosse players were indicted on rape…

  18. Dealing with Hitting and Aggression in the Classroom.

    ERIC Educational Resources Information Center

    Saifer, Steffen

    1996-01-01

    Notes that while hitting-aggressive behavior is probably the greatest single behavior concern of teachers, children can be taught appropriate behavior for the classroom. Offers tips for dealing with: roughhousing; existing problems; grabbing toys; and war games, guns, or violent play. Suggests allowing children the choice of an alternative…

  19. What's the Next Step?

    ERIC Educational Resources Information Center

    Zenchak, John; Lynch, Mary Jean

    2011-01-01

    The authors developed a demonstration with two similar setups that provide students with both the prior experience to form an expectation and the discrepancy to grab their attention. They follow the demonstration with a structured exploration format that gives students a method for experimenting to find the one built-in difference (i.e., the…

  20. Creating a Culture of Language Awareness in Content-Based Contexts

    ERIC Educational Resources Information Center

    Lindahl, Kristen; Watkins, Naomi M.

    2015-01-01

    A "toolkit" approach to professional development is frequently used to assist teachers of English language learners (ELLs), wherein teachers are provided a grab bag of activities and strategies to implement in their classrooms. However, today's heightened language demands call for teachers to develop teacher language awareness (TLA), a…

  1. Parent Involvement in the College Recruiting Process: To What Extent? CERI Research Brief 2-2007

    ERIC Educational Resources Information Center

    Gardner, Phil

    2010-01-01

    Parents' increasing involvement in their children's transition from college to work has grabbed the attention of the media. Every time the author talks with employer groups, he hears similar stories about the pervasive presence of parents in the recruiting process. At the same time, numerous employers questioned the presence of parents in the…

  2. Control & competition square off for primacy in the uranium market

    SciTech Connect

    1995-06-01

    Who dominates? Who competes? How level is the playing field? And how free is the free market? Of more than academic interest, these questions are being thrashed out by a bevy of market participants. But resolution is no dainty game of croquet; it looks more like a rugby scrum. So grab your binoculars and let the games begin.

  3. MTR, TRA603. CANAL BULKHEAD AND GATE. GRABHOOK TOOL. BLAWKNOX 315080329, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    MTR, TRA-603. CANAL BULKHEAD AND GATE. GRAB-HOOK TOOL. BLAW-KNOX 3150-803-29, 6/1950. INL INDEX NO. 531-0603-60-098-100585, REV. 3. - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

  4. STS 120 Return Samples: Assessment of Air Quality Aboard the Shuttle (STS-120) and International Space Station (10A)

    NASA Technical Reports Server (NTRS)

    James, John T.

    2008-01-01

    The toxicological assessments of 2 grab sample canisters (GSCs) from the Shuttle are reported. Formaldehyde badges were not used. Analytical methods have not changed from earlier reports. The recoveries of the 3 surrogates (C-13-acetone, fluorobenzene, and chlorobenzene) from the 2 GSCs averaged 111, 82, and 78%, respectively. The Shuttle atmosphere was acceptable for human respiration.

  5. Hands-On English: A Periodical for Teachers and Tutors of Adult English as a Second Language, 2001-2002.

    ERIC Educational Resources Information Center

    Silliman, Anna, Ed.

    2002-01-01

    These six issues of the periodical offer teachers and tutors practical ideas for teaching English as a Second Language (ESL) to adults. The publications include such teaching activities as multilevel crossword puzzles, multilevel dictation, a grammar grab-bag, role play games, an ESL board game, and a newspaper search activity. They also offer…

  6. How to Serve Content to PDA Users on-the-Go

    ERIC Educational Resources Information Center

    Cuddy, Colleen

    2006-01-01

    Fans of mobile devices are everywhere, and they are using their PDAs, smart phones, and mobile phones to access Web-based content. Chances are that they are trying to access your library's Web site or find library-based content for their devices. In this article, the author presents some tips on how to serve those who wants to grab some fast info…

  7. Benefits of a Game-Based Review Module in Chemistry Courses for Nonmajors

    ERIC Educational Resources Information Center

    Stringfield, Thomas W.; Kramer, Eugene F.

    2014-01-01

    Review sessions provide an opportunity for students to reflect on the material they have learned. Game shows can grab the students' interest and make them invested in the outcomes of their learning. A module developed around game show review was studied in chemistry courses for nonmajors to determine whether benefits could be found in…

  8. 46 CFR 116.920 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Storm rails. 116.920 Section 116.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150... and Guards § 116.920 Storm rails. Suitable storm rails or hand grabs must be installed where necessary...

  9. 46 CFR 177.920 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Storm rails. 177.920 Section 177.920 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) CONSTRUCTION AND ARRANGEMENT Rails and Guards § 177.920 Storm rails. Suitable storm rails or hand grabs must be...

  10. 46 CFR 169.329 - Storm rails.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Storm rails. 169.329 Section 169.329 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) NAUTICAL SCHOOLS SAILING SCHOOL VESSELS Construction and Arrangement Rails and Guards § 169.329 Storm rails. Suitable storm rails or hand grabs must be...

  11. Foundations for Success: Young People Learn Best through Active and Reflective Experiences

    ERIC Educational Resources Information Center

    Nagaoka, Jenny

    2016-01-01

    Succeeding at learning, and at life, takes more than academic ability. Studies on the importance of qualities like "grit" grabbing headlines, help to foster a growing conviction that encouraging the right mindsets and social-emotional skills in students will lead to better school achievement and post-secondary success. Policymakers are…

  12. Best of 2009 Sci-Tech Books

    ERIC Educational Resources Information Center

    Sapp, Gregg

    2010-01-01

    Science often reflects society's concerns, and a number of the top books of 2009 address two of the biggest headline-grabbing topics--climate change and health-care reform. This article presents a list of 35 titles that address climate change and health-care reform. Some titles cover the entirety of the global-warming threat (James Lovelock's "The…

  13. Viewing Volcanoes

    ERIC Educational Resources Information Center

    Wighting, Mervyn J.

    2005-01-01

    When Mount St. Helens threatened to erupt again in 2004, it grabbed headlines and captured the imagination of the country. Science classrooms nationwide used the event as an opportunity to make real-world connections to Earth science concepts introduced in the classroom. Thanks to modern technology, teachers no longer have to wait for the next…

  14. Teaching the Great War through Peace

    ERIC Educational Resources Information Center

    Shortell, Catherine K.; Paddock, Troy R. E.

    2011-01-01

    With all of the time constraints and institutional pressures that teachers face, it may seem odd to suggest using an anomalous event such as the Christmas Truce to study the first World War. However, the uniqueness of this event helps grab the attention of students and, as the authors demonstrate, can be used both to illustrate the common…

  15. Let's Play Supermarket "Evidential" Sweep: Developing Students' Awareness of the Need to Select Evidence

    ERIC Educational Resources Information Center

    Foster, Rachel; Gadd, Sarah

    2013-01-01

    Despite having built a sustained focus on historical thinking into their planning for progression across Years 7 to 13, Rachel Foster and Sarah Gadd remained frustrated with stubborn weaknesses in the evidential thinking of students in examination classes. Students slipped too easily into grabbing any fact or source extract as evidence, and failed…

  16. Practitioner Review: Beyond Shaken Baby Syndrome--What Influences the Outcomes for Infants following Traumatic Brain Injury?

    ERIC Educational Resources Information Center

    Ashton, Rebecca

    2010-01-01

    Background: Traumatic brain injury (TBI) in infancy is relatively common, and is likely to lead to poorer outcomes than injuries sustained later in childhood. While the headlines have been grabbed by infant TBI caused by abuse, often known as shaken baby syndrome, the evidence base for how to support children following TBI in infancy is thin.…

  17. Governors Face Political Hurdles in Seeking Power to Appoint Chiefs

    ERIC Educational Resources Information Center

    McNeil, Michele

    2008-01-01

    Convinced of the connection between the quality of their schools and the future of their states--not to mention their own political reputations--some governors are seeking a bigger role in shaping education policy by grabbing for more control over their state schools chiefs. Governors note that they are responsible for managing state budgets, of…

  18. NAEP and Policy: Chasing the Tail of the Assessment Tiger

    ERIC Educational Resources Information Center

    Diket, Read M.; Brewer, Thomas M.

    2011-01-01

    This paper grabs hold of the "assessment tiger" by considering the history of the National Assessment of Educational Progress (NAEP) "Arts Report Cards" for the visual arts, which were constructed and have been administered four times within thirty-five years. Two purposes of the NAEP have persisted since its founding: (1)…

  19. Surging Ahead

    ERIC Educational Resources Information Center

    Ruda, Tammie L.

    2011-01-01

    A challenge gift helps fundraisers reach goals by stimulating multiple aspects of a fundraising program. First, the message of a challenge grabs the attention of prospects and generally generates excitement beyond the case for support. It also commands the attention of the prospect managers in an organization, particularly when the challenge…

  20. Security: An Emerging Fundamental Value in Educational Policy Making?

    ERIC Educational Resources Information Center

    DeMitchell, Todd A.

    1994-01-01

    Education, like other governmental activities, is characterized by a competition for scarce resources. Security, whether in the form of metal detectors or condom availability, is an additional fundamental value that has grabbed center stage in the struggle among competing fundamental values (efficiency, equity, liberty, and quality) in educational…

  1. Evaluating Retirement Income Security for Illinois Public School Teachers. Public Pension Project Report

    ERIC Educational Resources Information Center

    Johnson, Richard W.; Southgate, Benjamin G.

    2014-01-01

    The financial problems afflicting the Illinois teacher pension plan have grabbed headlines. An equally important problem, though underappreciated, is that relatively few teachers benefit much from the plan. This report evaluates the pension benefits provided to Illinois public school teachers. The researchers project annual and lifetime pension…

  2. Grilling with a Healthier Mindset | Poster

    Cancer.gov

    Summer means another chance to grab some ribs and fire up the grill, but eating certain types of grilled meat may increase your chances of developing cancer. Here is a glimpse of how cancer and grilling are related and some ways you can lower your risk.

  3. Expertise Increases the Functional Overlap between Face and Object Perception

    ERIC Educational Resources Information Center

    McKeeff, Thomas J.; McGugin, Rankin W.; Tong, Frank; Gauthier, Isabel

    2010-01-01

    Recent studies indicate that expertise with objects can interfere with face processing. Although competition occurs between faces and objects of expertise, it remains unclear whether this reflects an expertise-specific bottleneck or the fact that objects of expertise grab attention and thereby consume more central resources. We investigated the…

  4. 46 CFR 160.076-21 - Component materials.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... inflation chamber material, determined in accordance with the procedures specified in § 160.076-25(d)(2)(iii... by § 160.076-25(d)(2)(iii). (c) The average grab breaking strength and tear strength of the inflation...) Each manual, automatic, or manual-auto inflation mechanism must be marked in accordance with §...

  5. Exploration of Action Figure Appeals Using Evaluation Grid Method and Quantification Theory Type I

    ERIC Educational Resources Information Center

    Chang, Hua-Cheng; Chen, Hung-Yuan

    2017-01-01

    Contemporary toy is characterized by accelerating social, cultural and technological change. An attractive action figure can grab consumers' attention, influence the latent consuming preference and evoke their pleasure. However, traditional design of action figure is always dependent on designer's opinion, subjective experience and preference. It…

  6. Maps showing the surficial geology of the Culebra shelf, Puerto Rico

    USGS Publications Warehouse

    Hampton, M.A.; Torresan, M.E.; Trias, Juan L.; Folger, D.W.; Wong, F.L.

    1997-01-01

    This study presents the surficial and shallow subbottom geology of the insular shelf around Culebra, Puerto Rico. In view of the need for sand and gravel for construction purposes in the area, we inferred the thickness of unlithified, surficial sediment deposits from high-resolution acoustic-reflection profiles and described seafloor sediment samples collected with a Shipek grab.

  7. Effects of Violent Media on Verbal Task Performance in Gifted and General Cohort Children

    ERIC Educational Resources Information Center

    Çetin, Yakup; Wai, Jonathan; Altay, Cengiz; Bushman, Brad J.

    2016-01-01

    Violent media immediately grab our attention. However, violent media also detract attention from other cues. A large body of research shows that violent media impair attention and memory, critical resources for academic performance, such as verbal tasks at school. The present study tested whether gifted children are more insulated or more…

  8. Integrating the Curriculum: Faux Fall Repousse

    ERIC Educational Resources Information Center

    Kernan, Christine

    2012-01-01

    When introducing a new unit, art teachers know that sometimes a little "bling" can really grab students' attention. The author received "ooohs" and "aaahs" from her fourth-graders when they learned they would be creating "Faux Fall Repousse." The dazzling shine of the aluminum foil and the beautiful array of autumnal colors were impossible for…

  9. They Dig It!

    ERIC Educational Resources Information Center

    Hallett, Rachel

    2005-01-01

    The first few years of the author's career, she struggled to find a science experience that would grab her sixth-grade students from the start--something that would let them know that coming to class would be worth their time and that they would be learning in an exciting environment. She finally found it: The perfect project idea bubbled up as…

  10. Systematic paleontology of Quaternary ostracode assemblages from the Gulf of Alaska; Part 3, Family Cytheruridae

    USGS Publications Warehouse

    Brouwers, E.M.

    1994-01-01

    Forty-six species of podocopid ostracodes, most belonging to the Family Cytheruridae, are reported from Quaternary continental-shelf sediments of the Gulf of Alaska. Descriptions and illustrations are provided for 27 new species, 11 previously described species, and 8 species retained in open nomenclature. This report is based on 198 bottom grab samples collected during 1975, 1979, and 1980.

  11. 40 CFR 98.264 - Monitoring and QA/QC requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... requirements. (a) You must obtain a monthly grab sample of phosphate rock directly from the rock being fed to..., Bartow, Florida 33831, (863) 534-9755, http://afpc.net, paul.mcafee@mosaicco.com). If phosphate rock is obtained from more than one origin in a month, you must obtain a sample from each origin of rock or obtain...

  12. Toward a Sociology of Music Curriculum Integration

    ERIC Educational Resources Information Center

    Bates, Vincent C.

    2016-01-01

    In this article, an analogy is drawn between processes of land-grabbing or land enclosures and music education professionalization. It is suggested that specializations in musicing and music teaching serve to discourage participation or create musical helplessness on the part of those who don't view themselves as "musically inclined."…

  13. Viewing Volcanoes

    ERIC Educational Resources Information Center

    Wighting, Mervyn J.

    2005-01-01

    When Mount St. Helens threatened to erupt again in 2004, it grabbed headlines and captured the imagination of the country. Science classrooms nationwide used the event as an opportunity to make real-world connections to Earth science concepts introduced in the classroom. Thanks to modern technology, teachers no longer have to wait for the next…

  14. VOLATILE ORGANIC COMPOUNDS MEASUREMENTS IN NEW YORK CITY IN RESPONSE TO THE EVENTS OF 9/11

    EPA Science Inventory

    From September 22, 2001 through February 2002, ambient air was sampled in lower Manhattan, New York at three sites within a block of ground zero and at a fourth site 500-m northwest of the World Trade Center. Over 190 grab samples were collected in evacuated, electro-polished s...

  15. Toward a Sociology of Music Curriculum Integration

    ERIC Educational Resources Information Center

    Bates, Vincent C.

    2016-01-01

    In this article, an analogy is drawn between processes of land-grabbing or land enclosures and music education professionalization. It is suggested that specializations in musicing and music teaching serve to discourage participation or create musical helplessness on the part of those who don't view themselves as "musically inclined."…

  16. Youngsters' Mental Health and Pyschosocial Problems: What are the Data?

    ERIC Educational Resources Information Center

    Center for Mental Health in Schools at UCLA, 2008

    2008-01-01

    In many arenas, the demand for data has outstripped the availability of good data and has increased the tendency to grab for whatever numbers are being circulated in the literature. As a result, when someone says: "This is the best data available," it is essential to remember that "best" does not always mean good. This caution is particularly…

  17. General Christopher C. Andrews: Leading the Minnesota Forestry Revolution

    ERIC Educational Resources Information Center

    Rice, Anna M.

    2002-01-01

    In the nineteenth century, America's burgeoning population certainly did grab all the timber it could. Vast pine forests stretched from Maine to Dakota, and the lumber industry voraciously consumed them from east to west. In 1800, the Minnesota territory was sparsely sprinkled with fur traders and American Indians. By 1850, its bounteous forests…

  18. Reading, Writing and Radicalism: Right-Wing Women and Education in the Post-War Years

    ERIC Educational Resources Information Center

    Benowitz, June Melby

    2009-01-01

    The headlines "Who's Trying to Ruin Our Schools?" and "Danger's Ahead in the Public Schools" grabbed the attention of the American public during the early 1950s as mainstream publications reacted to efforts by right-wing organizations to influence the curricula of America's elementary and secondary schools. "A bewildering disease that threatens to…

  19. 40 CFR 98.264 - Monitoring and QA/QC requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... (CONTINUED) MANDATORY GREENHOUSE GAS REPORTING Phosphoric Acid Production § 98.264 Monitoring and QA/QC... content of each monthly grab sample of phosphate rock (consumed in the production of phosphoric acid). You... wet-process phosphoric acid process line. You can use existing plant procedures that are used...

  20. Electrostatics experiments with sharp metal points

    NASA Astrophysics Data System (ADS)

    Ivanov, Dragia; Nikolov, Stefan

    2016-11-01

    In this paper we examine the phenomena that arise around an electrically charged sharp metal spike and present numerous experiments that can be used in the teaching of electrostatics. The experiments are quite spectacular and attention-grabbing while being relatively simple and easy to perform in any decently supplied physics education laboratory that is equipped with an electrostatic machine (like a Wimshurst machine).

  1. With "Restorative Justice," Colleges Strive to Educate Student Offenders

    ERIC Educational Resources Information Center

    Lipka, Sara

    2009-01-01

    Student-conduct administrators around the country are hailing restorative justice as the next big thing. A blend of mediation and restitution, it seeks to resolve a conflict by identifying the harms caused and devising, with suggestions from both victims and offenders, an agreement to repair them. That approach to discipline grabs campus officials…

  2. 474 Science Activities for Young Children.

    ERIC Educational Resources Information Center

    Green, Moira D.

    This book uses a child-initiated, whole language approach to help children have fun while exploring the world of science. The activities are divided into 23 units. Each unit begins with an "Attention Getter," the purpose of which is to introduce the unit to children in a way that grabs their attention, stimulates their interest, and creates…

  3. 40 CFR 61.93 - Emission monitoring and test procedures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... or frequent flow rate measurements shall be made. For relatively constant flow rates only periodic... applicable to batch processes when the unit is in operation. Periodic sampling (grab samples) may be used... have a potential to release radionuclides into the air, periodic confirmatory measurements shall be...

  4. 40 CFR 61.93 - Emission monitoring and test procedures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... or frequent flow rate measurements shall be made. For relatively constant flow rates only periodic... applicable to batch processes when the unit is in operation. Periodic sampling (grab samples) may be used... have a potential to release radionuclides into the air, periodic confirmatory measurements shall be...

  5. 40 CFR 61.107 - Emission determination.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... shall be made. For relatively constant flow rates only periodic measurements are necessary. (2... operation. Periodic sampling (grab samples) may be used only with EPA's prior approval. Such approval may be... potential to release radionuclides into the air, periodic confirmatory measurements should be made to verify...

  6. 40 CFR 61.107 - Emission determination.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... shall be made. For relatively constant flow rates only periodic measurements are necessary. (2... operation. Periodic sampling (grab samples) may be used only with EPA's prior approval. Such approval may be... potential to release radionuclides into the air, periodic confirmatory measurements should be made to verify...

  7. Diagnostic accuracy of rectoanal mucosal swab of feedlot cattle for detection and enumeration of Salmonella enterica

    USDA-ARS?s Scientific Manuscript database

    Cattle are noted carriers of the foodborne pathogen Salmonella enterica. The perceived need to decrease the potential human health risk posed by excretion of this pathogen has resulted in numerous studies examining the factors that influence cattle shedding of Salmonella. Fecal grab (FG) samples hav...

  8. Reading, Writing and Radicalism: Right-Wing Women and Education in the Post-War Years

    ERIC Educational Resources Information Center

    Benowitz, June Melby

    2009-01-01

    The headlines "Who's Trying to Ruin Our Schools?" and "Danger's Ahead in the Public Schools" grabbed the attention of the American public during the early 1950s as mainstream publications reacted to efforts by right-wing organizations to influence the curricula of America's elementary and secondary schools. "A bewildering disease that threatens to…

  9. 7 CFR 28.956 - Prescribed fees.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... cotton fabric. Reporting the average warp and filling strength by the grab method as based on 5 breaks for both warp and filling of fabric furnished by the applicant, per sample 20.00 29.1Cotton fabric analysis. Reporting data on the number of warp and filling threads per inch and weight per yard of...

  10. 7 CFR 28.956 - Prescribed fees.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... cotton fabric. Reporting the average warp and filling strength by the grab method as based on 5 breaks for both warp and filling of fabric furnished by the applicant, per sample 20.00 29.1Cotton fabric analysis. Reporting data on the number of warp and filling threads per inch and weight per yard of...

  11. Investing in Innovation

    ERIC Educational Resources Information Center

    National Governors Association, 2007

    2007-01-01

    "Investing in Innovation" provides a snapshot of trends in the states and identifies a wide range of strategies now employed. California's big investments, such as $3 billion for stem cell research, have already grabbed national headlines. But states like Arizona, Indiana and North Dakota, which haven't historically been big research and…

  12. NATIONAL SCREENING SURVEY OF EDCS IN MUNICIPAL WASTEWATER TREATMENT FACILITIES

    EPA Science Inventory

    In 2002 and 2003 the USEPA's Office of Research and Development asked Regional EPA inspectors, state EPA inspectors and municipal plant operators to collect four gallons effluent, either as a grab or composite sample, from up to 50 wastewater treatment plants (WWTP), and ship the...

  13. 40 CFR 63.128 - Transfer operations provisions-test methods and procedures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... control device cycle, and samples shall be collected using integrated sampling or grab samples taken at... period specified in § 63.11(b)(4). (i) If the loading cycle is less than 2 hours, then the observation period for that run shall be for the entire loading cycle. (ii) If additional loading cycles...

  14. Chesapeake Bay Critters

    ERIC Educational Resources Information Center

    Mackay-Atha, Lynne

    2005-01-01

    When students enter the author's classroom on the first day of school, they are greeted with live crabs scuttling around in large bins. The crabs are her way of grabbing students' attention and launching the unit on the Chesapeake Bay watershed. She chooses to start the year with this unit because, despite the fact that the Potomac River can be…

  15. Lake Michigan: Nearshore variability and a nearshore-offshore distinction in water quality

    EPA Science Inventory

    We conducted a high-resolution survey of the Lake Michigan nearshore using towed electronic instrumentation and fixed station sampling (1049 km at the approximate 20-m depth contour and grab samples at 15 sites). The principal variability in the alongshore reach was generally re...

  16. 46 CFR 160.076-31 - Production tests and examinations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... tolerances specified in the approved plans and specifications. (6) Tensile strength. Each sample primary... requirements in § 160.076-21 (b) and (c) for permeability, grab strength, and tear strength. Lots not meeting... retested. (2) Seam strength. The seams in each inflation chamber of each sample must be tested in...

  17. 46 CFR 160.076-31 - Production tests and examinations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... tolerances specified in the approved plans and specifications. (6) Tensile strength. Each sample primary... requirements in § 160.076-21 (b) and (c) for permeability, grab strength, and tear strength. Lots not meeting... retested. (2) Seam strength. The seams in each inflation chamber of each sample must be tested in...

  18. 46 CFR 160.076-31 - Production tests and examinations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... specified in the approved plans and specifications. (6) Tensile strength. Each sample primary closure system... § 160.076-11) for permeability, grab strength, and tear strength. Lots not meeting this requirement must... strength. The seams in each inflation chamber of each sample must be tested in accordance with Table 29.1...

  19. Split Decision

    ERIC Educational Resources Information Center

    Guhin, Paula

    2010-01-01

    This article describes an art project designed for middle- and high-school students to (1) understand the meaning of the terms composite and photomontage, and be able to use them correctly; (2) select and evaluate a range of subject matter; (3) combine three different photographs to create an attention-grabbing, entertaining work; and (4) mount…

  20. X-Ray Fluorescence Spectrometry for Field Analysis of Marine Sediments

    DTIC Science & Technology

    1994-03-01

    can quickly be reinvestigated if necessary. Since XRF spectrometry is a nondestructive technique , additional or confirmatory analysis of the same...sediment grabs were taken to the laboratory and processed for XRF measurement using standard laboratory techniques for quantitative analysis . We had...spectrometry is a nondestructive technique , additional or confirmatory analysis of the same sample by an analyti- cal laboratory is possible. REFERENCES

  1. You Do Not Find Your Own Face Faster; You Just Look at It Longer

    ERIC Educational Resources Information Center

    Devue, Christel; Van der Stigchel, Stefan; Bredart, Serge; Theeuwes, Jan

    2009-01-01

    Previous studies investigating the ability of high priority stimuli to grab attention reached contradictory outcomes. The present study used eye tracking to examine the effect of the presence of the self-face among other faces in a visual search task in which the face identity was task-irrelevant. We assessed whether the self-face (1) received…

  2. Soyuz 25 Return Samples: Assessment of Air Quality Aboard the International Space Station

    NASA Technical Reports Server (NTRS)

    James, John T.

    2011-01-01

    Six mini-grab sample containers (m-GSCs) were returned aboard Soyuz 25. The toxicological assessment of 6 m-GSCs from the ISS is shown. The recoveries of the 3 internal standards, C-13-acetone, fluorobenzene, and chlorobenzene, from the GSCs averaged 76, 108 and 88%, respectively. Formaldehyde badges were not returned aboard Soyuz 25.

  3. Books, Biodiversity, and Beyond!

    ERIC Educational Resources Information Center

    Governor, Donna; Helms, Sarah

    2007-01-01

    Reading in science class does not have to be boring, but it is no secret to students or teachers that textbooks are not much fun to read. It is always a challenge for teachers to find reading materials that would grab the interests of their students. In this article, the author relates how she used Biodiversity, a nonfiction book by Dorothy…

  4. 40 CFR 60.74 - Test methods and procedures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... operator shall determine compliance with the NOX standard in § 60.72 as follows: (1) The emission rate (E) of NOX shall be computed for each run using the following equation: E=(Cs Qsd)/(P K) where: E... no closer to the walls than 1 m (3.28 ft). Four grab samples shall be taken at approximately...

  5. They Dig It!

    ERIC Educational Resources Information Center

    Hallett, Rachel

    2005-01-01

    The first few years of the author's career, she struggled to find a science experience that would grab her sixth-grade students from the start--something that would let them know that coming to class would be worth their time and that they would be learning in an exciting environment. She finally found it: The perfect project idea bubbled up as…

  6. Engage and Excite Students with Educational Games

    ERIC Educational Resources Information Center

    Petsche, Jennifer

    2011-01-01

    Using educational games to learn or reinforce lessons engages students and turns a potentially boring subject into something exciting and desirable to know! Games offer teachers and parents a new way to grab students' attention so that they will retain information. Games have become a teaching tool, an invaluable resource for reaching students in…

  7. Foundations for Success: Young People Learn Best through Active and Reflective Experiences

    ERIC Educational Resources Information Center

    Nagaoka, Jenny

    2016-01-01

    Succeeding at learning, and at life, takes more than academic ability. Studies on the importance of qualities like "grit" grabbing headlines, help to foster a growing conviction that encouraging the right mindsets and social-emotional skills in students will lead to better school achievement and post-secondary success. Policymakers are…

  8. 40 CFR 98.264 - Monitoring and QA/QC requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... requirements. (a) You must obtain a monthly grab sample of phosphate rock directly from the rock being fed to... AFPC Manual 10th Edition 2009—Version 1.9 (incorporated by reference, see § 98.7). If phosphate rock is obtained from more than one origin in a month, you must obtain a sample from each origin of rock or...

  9. Releasable High-Mechanical-Advantage Linear Actuator

    NASA Technical Reports Server (NTRS)

    Young, Gordon H.

    1994-01-01

    Proposed linear actuator includes ball-screw mechanism made to engage or disengage piston as needed. Requires low power to maintain release and no power to maintain engagement. Pins sliding radially in solenoids in yoke engage or disengage slot in piston. With help of optoelectronic feedback, yoke made to follow free piston during disengagement so always in position to "grab" piston.

  10. In vivo and in vitro neurochemical-based assessments of wastewater effluents from the Maumee River area of concern.

    EPA Science Inventory

    Fathead minnows (Pimephales promelas) were caged for four days at multiple locations upstream and downstream of a wastewater treatment plant (WWTP) discharge into the Maumee River (USA, OH). Grab water samples collected at the same location were extracted using several different ...

  11. Universities Have a Key Role in Global Access to Medicines

    ERIC Educational Resources Information Center

    Panjabi, Rajesh; Rajkumar, Rahul; Kim, Jim Yong

    2008-01-01

    Around the world, the fight for affordable medical treatment is intensifying. Headline-grabbing battles are being waged in India, where the Chennai High Court recently decided a major constitutional case over access to lifesaving cancer medication. In Thailand, Abbott Laboratories, a multinational pharmaceutical giant, has withdrawn registration…

  12. Teaching a Child with Autism and Severe Language Delays to Reject: Direct and Indirect Effects of Functional Communication Training

    ERIC Educational Resources Information Center

    Martin, Christian A.; Drasgow, Erik; Halle, James W.; Brucker, Jennifer M.

    2005-01-01

    We used functional communication training to teach Bob, a 10-year-old student with autism and severe language delays, to reject items by touching an icon. Our initial assessment revealed that Bob's behaviours serving a rejecting function consisted of pushing away, yelling, bear hugging-grabbing, and leaving. We used prompting, differential…

  13. Practitioner Review: Beyond Shaken Baby Syndrome--What Influences the Outcomes for Infants following Traumatic Brain Injury?

    ERIC Educational Resources Information Center

    Ashton, Rebecca

    2010-01-01

    Background: Traumatic brain injury (TBI) in infancy is relatively common, and is likely to lead to poorer outcomes than injuries sustained later in childhood. While the headlines have been grabbed by infant TBI caused by abuse, often known as shaken baby syndrome, the evidence base for how to support children following TBI in infancy is thin.…

  14. Further research on the biological activities and the safety of raspberry ketone are needed

    USDA-ARS?s Scientific Manuscript database

    Raspberry ketone supplements have grabbed consumer attention with the possibility they might help burn fat and aid weight loss. While raspberry ketone occurs naturally, and is found in raspberry fruit, most is synthetically produced for use in commercial products as flavorings, fragrances, or dietar...

  15. 40 CFR 61.174 - Test methods and procedures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Arsenic Emissions From Primary Copper Smelters § 61.174 Test methods and procedures. (a) To determine... converter arsenic charging rate as follows: (1) Collect daily grab samples of copper matte and any lead... determine the weight percent of inorganic arsenic contained in each sample. (3) Calculate the converter...

  16. 40 CFR 61.174 - Test methods and procedures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Arsenic Emissions From Primary Copper Smelters § 61.174 Test methods and procedures. (a) To determine... converter arsenic charging rate as follows: (1) Collect daily grab samples of copper matte and any lead... determine the weight percent of inorganic arsenic contained in each sample. (3) Calculate the converter...

  17. 40 CFR 61.174 - Test methods and procedures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Arsenic Emissions From Primary Copper Smelters § 61.174 Test methods and procedures. (a) To determine... converter arsenic charging rate as follows: (1) Collect daily grab samples of copper matte and any lead... determine the weight percent of inorganic arsenic contained in each sample. (3) Calculate the converter...

  18. 40 CFR 61.174 - Test methods and procedures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Arsenic Emissions From Primary Copper Smelters § 61.174 Test methods and procedures. (a) To determine... converter arsenic charging rate as follows: (1) Collect daily grab samples of copper matte and any lead... determine the weight percent of inorganic arsenic contained in each sample. (3) Calculate the converter...

  19. 40 CFR 61.174 - Test methods and procedures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Arsenic Emissions From Primary Copper Smelters § 61.174 Test methods and procedures. (a) To determine... converter arsenic charging rate as follows: (1) Collect daily grab samples of copper matte and any lead... determine the weight percent of inorganic arsenic contained in each sample. (3) Calculate the converter...

  20. Books, Biodiversity, and Beyond!

    ERIC Educational Resources Information Center

    Governor, Donna; Helms, Sarah

    2007-01-01

    Reading in science class does not have to be boring, but it is no secret to students or teachers that textbooks are not much fun to read. It is always a challenge for teachers to find reading materials that would grab the interests of their students. In this article, the author relates how she used Biodiversity, a nonfiction book by Dorothy…

  1. Praying Mantis Bending Core Breakoff and Retention Mechanism

    NASA Technical Reports Server (NTRS)

    Badescu, Mircea; Sherrit, Stewart; Bar-Cohen, Yoseph; Bao, Xiaoqi; Lindermann, Randel A.

    2011-01-01

    Sampling cores requires the controlled breakoff of the core at a known location with respect to the drill end. An additional problem is designing a mechanism that can be implemented at a small scale, yet is robust and versatile enough to be used for a variety of core samples. The new design consists of a set of tubes (a drill tube, an outer tube, and an inner tube) and means of sliding the inner and outer tubes axially relative to each other. Additionally, a sample tube can be housed inside the inner tube for storing the sample. The inner tube fits inside the outer tube, which fits inside the drill tube. The inner and outer tubes can move axially relative to each other. The inner tube presents two lamellae with two opposing grabbing teeth and one pushing tooth. The pushing tooth is offset axially from the grabbing teeth. The teeth can move radially and their motion is controlled by the outer tube. The outer tube presents two lamellae with radial extrusions to control the inner tube lamellae motion. In breaking the core, the mechanism creates two support points (the grabbing teeth and the bit tip) and one push point. The core is broken in bending. The grabbing teeth can also act as a core retention mechanism. The praying mantis that is disclosed herein is an active core breaking/retention mechanism that requires only one additional actuator other than the drilling actuator. It can break cores that are attached to the borehole bottom as

  2. Lake Michigan: Nearshore variability and a nearshore-offshore distinction in water quality

    EPA Science Inventory

    We conducted a high-resolution survey of the Lake Michigan nearshore using towed electronic instrumentation and fixed station sampling (1049 km at the approximate 20-m depth contour and grab samples at 15 sites). The principal variability in the alongshore reach was generally re...

  3. Project Morpheus testing

    NASA Image and Video Library

    2012-06-25

    A frame grab from a mounted video camera on the E-3 Test Stand at Stennis Space Center documents testing of the new Project Morpheus engine. The new liquid methane, liquid oxygen engine will power the Morpheus prototype lander, which could one day evolve to carry cargo safely to the moon, asteroids or Mars surfaces.

  4. Universities Have a Key Role in Global Access to Medicines

    ERIC Educational Resources Information Center

    Panjabi, Rajesh; Rajkumar, Rahul; Kim, Jim Yong

    2008-01-01

    Around the world, the fight for affordable medical treatment is intensifying. Headline-grabbing battles are being waged in India, where the Chennai High Court recently decided a major constitutional case over access to lifesaving cancer medication. In Thailand, Abbott Laboratories, a multinational pharmaceutical giant, has withdrawn registration…

  5. General Christopher C. Andrews: Leading the Minnesota Forestry Revolution

    ERIC Educational Resources Information Center

    Rice, Anna M.

    2002-01-01

    In the nineteenth century, America's burgeoning population certainly did grab all the timber it could. Vast pine forests stretched from Maine to Dakota, and the lumber industry voraciously consumed them from east to west. In 1800, the Minnesota territory was sparsely sprinkled with fur traders and American Indians. By 1850, its bounteous forests…

  6. Northern Gulf Littoral Initiative Geology and Physical Properties of Marine Sediments in the N.E. Gulf of Mexico

    DTIC Science & Technology

    2000-01-01

    One objective of the NGLI project was to establish a sedimentological and physical property database for Northern Gulf of Mexico that can be immediately utilized by the existing Navy R&D activities within the area Results from the core and grab sample analyses will be used to populate this database.

  7. Corruption’s Reflection: Iraq’s Shadow Economy

    DTIC Science & Technology

    2005-03-01

    Government (Cambridge, MA: Harvard University, April 2004). 23. E. Friedman, S. Johnson, D. Kaufmann and P. Zoido- Lobaton , “Dodging the Grabbing Hand... Lobaton , “Regulatory Discretion and the Unofficial Economy,” American Economic Review 99:2 (May 1998), pp. 387-392. 24. Joseph Braude, Op. Cit., p

  8. A Qualitative Survey of Five Antibiotics in a Water Treatment Plant in Central Plateau of Iran

    PubMed Central

    Heidari, Mohsen; Kazemipour, Maryam; Bina, Bijan; Ansari, Mehdi; Ghasemian, Mohammad; Amin, Mohammad Mehdi

    2013-01-01

    Introduction. This study aimed to survey a total of five common human and veterinary antibiotics based on SPE-LC-MS-MS technology in a water treatment plant at central plateau of Iran. Also two sampling techniques, passive and grab samplings, were compared in the detection of selected antibiotics. Materials and Methods. In January to March 2012, grab and passive samples were taken from the influent and effluent of a water treatment plant. The samples were prepared using solid-phase extraction (SPE), and extracts were analyzed by liquid chromatography tandem mass spectrometry (LC-MS-MS). Results. The results showed that enrofloxacin, oxytetracycline, and tylosin were not detected in none of the samples. However, ampicillin was detected in the grab and passive samples taken from the influent (source water) of the plant, and ciprofloxacin was detected in passive samples taken from the influent and effluent (finished water) of the plant. Conclusion. The results imply that passive sampling is a better approach than grab sampling for the investigation of antibiotics in aquatic environments. The presence of ampicillin and ciprofloxacin in source water and finished water of the water treatment plant may lead to potential emergence of resistant bacteria that should be considered in future studies. PMID:23690801

  9. A qualitative survey of five antibiotics in a water treatment plant in central plateau of Iran.

    PubMed

    Heidari, Mohsen; Kazemipour, Maryam; Bina, Bijan; Ebrahimi, Afshin; Ansari, Mehdi; Ghasemian, Mohammad; Amin, Mohammad Mehdi

    2013-01-01

    This study aimed to survey a total of five common human and veterinary antibiotics based on SPE-LC-MS-MS technology in a water treatment plant at central plateau of Iran. Also two sampling techniques, passive and grab samplings, were compared in the detection of selected antibiotics. In January to March 2012, grab and passive samples were taken from the influent and effluent of a water treatment plant. The samples were prepared using solid-phase extraction (SPE), and extracts were analyzed by liquid chromatography tandem mass spectrometry (LC-MS-MS). The results showed that enrofloxacin, oxytetracycline, and tylosin were not detected in none of the samples. However, ampicillin was detected in the grab and passive samples taken from the influent (source water) of the plant, and ciprofloxacin was detected in passive samples taken from the influent and effluent (finished water) of the plant. The results imply that passive sampling is a better approach than grab sampling for the investigation of antibiotics in aquatic environments. The presence of ampicillin and ciprofloxacin in source water and finished water of the water treatment plant may lead to potential emergence of resistant bacteria that should be considered in future studies.

  10. Interagency Command and Control Approaches in Amazon Environment to Include, Trust, Cultural and Personal Relationship into a C2 Model

    DTIC Science & Technology

    2013-06-01

    infrastructure in a hard, hot and humidity climate . Add to these facts, there are differences of culture and hierarchy in the government...the Amazon today are environmental crimes, such as deforestation and illegal mining, the "land grabbing", lack of formal...generate and integrate data and information relating to the protection of the Amazon (local deforestation , illegal traffic, increasing

  11. Low-Carbon Computing

    ERIC Educational Resources Information Center

    Hignite, Karla

    2009-01-01

    Green information technology (IT) is grabbing more mainstream headlines--and for good reason. Computing, data processing, and electronic file storage collectively account for a significant and growing share of energy consumption in the business world and on higher education campuses. With greater scrutiny of all activities that contribute to an…

  12. Embedded Advertising on Television: Classic Legal Environment and Business Law Content "Brought to You by ..."

    ERIC Educational Resources Information Center

    Cain, Rita Marie

    2010-01-01

    Students are familiar with some or all depictions of branded products in popular television shows. But they probably have no idea the number of legal and public policy issues these product appearances are generating. This article explains how embedded advertising in television shows can be the attention-grabbing vehicle for teaching numerous…

  13. 49 CFR 38.107 - Restrooms.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... minimum of 29 inches above the floor, provided such fixtures do not interfere with access to the water... provided they can be easily folded up or moved out of the way. (2) The height of the water closet shall be... a lifted position. (3) A grab bar at least 24 inches long shall be mounted behind the water closet...

  14. Prejudice, Pride, and Sectarian Schools

    ERIC Educational Resources Information Center

    McArthur, Benjamin

    2005-01-01

    In an era when the gods of diversity are supreme--enforcing an arbitrary sensitivity on campus and tossing all other moral propositions up for grabs--here and there the Protestant principles that shaped American still assert their institutional role "in loco parentis." Benjamin McArthur recognizes that loyalty to scripture seems anathema…

  15. Effectiveness of Breakfast in the Classroom in Five Exemplary Districts

    ERIC Educational Resources Information Center

    Rainville, Alice Jo; King, Amber D.; Nettles, Mary Frances

    2013-01-01

    Purpose/Objectives: A national trend to improve school breakfast participation is the integration of breakfast within the school day. Breakfast in the classroom programs increase student access to school breakfast. Service models include "grab and go," distribution of breakfasts to each classroom, and mobile breakfast carts in hallways.…

  16. 33 CFR 148.405 - What are the procedures for notifying the Commandant (CG-5) of proposed site evaluation and pre...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) Any person who wants to conduct site evaluation and pre-construction testing at a potential site for a...) Sediment sampling of a limited nature using either core or grab samplers, and the specified diameter and depth to which the sampling would penetrate if geological profiles indicate no discontinuities that may...

  17. 40 CFR 63.11960 - What are my initial and continuous compliance requirements for stripped resin?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... group of resin strippers used to process the same resin type. (1) You must conduct an initial... preceding the sampling event. (iii) For continuous processes, during a 24-hour sampling period, for each... processes, during a 24-hour sampling period, for each batch of each resin grade produced, collect 1 grab...

  18. 33 CFR 148.405 - What are the procedures for notifying the Commandant (CG-5P) of proposed site evaluation and pre...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ...) Any person who wants to conduct site evaluation and pre-construction testing at a potential site for a...) Sediment sampling of a limited nature using either core or grab samplers, and the specified diameter and depth to which the sampling would penetrate if geological profiles indicate no discontinuities that may...

  19. Myth of the "Last-In" Superstar

    ERIC Educational Resources Information Center

    Chesley, Gary M.; Hartman, Diane M.

    2011-01-01

    In the new political landscape, lawmakers in state after state are anxiously sponsoring legislation eliminating "last-in, first-out" policies. News reports would have people believe every untenured teacher, with just a few months of experience, is a "Teacher of the Year" candidate, while every tenured professional is a money-grabbing, lazy and…

  20. It's Not All Fun and Games: Sports, Concussions, and Neuroscience.

    PubMed

    Giza, Christopher C; Prins, Mayumi L; Hovda, David A

    2017-06-21

    Few items grab the public's attention like sports, from extremes of great victory to injury and defeat. No injury currently arouses stronger interest than concussion. Giza et al., discuss how neuroscience can provide balance between physical activity and TBI, and guide thoughtful discourse and policy. Copyright © 2017 Elsevier Inc. All rights reserved.