WorldWideScience

Sample records for californium 255

  1. Magnetism in californium

    International Nuclear Information System (INIS)

    A SQUID-based magnetic susceptometer has been constructed for studying small radioactive samples at temperatures below 350 K and in magnetic fields up to 50 kilogauss. The device has been used to study californium (element 98) in a number of solid-state forms: the dhcp metal, several oxides (Cf2O3 in both the bcc and monoclinic structures, Cf7O12, CfO2 and BaCfO3), several monopnictides (CfN, CfAs and CfSb) and the trichloride (in both the hexagonal and orthorhombic structures). All of these materials were studied in polycrystalline form, and hexagonal CfCl3 was studied in single-crystal form as well. The susceptometer has the sensitivity to measure samples containing less than 10 micrograms of californium. The magnetic susceptibilities of all of the californium materials at temperatures above about 100 K are described well by the Curie-Weiss relationship. This behavior is consistent with the assumption that the magnetic 5f electrons are localized and that the paramagnetic behavior can be interpreted in terms of the properties of the free ion. The measured values of the effective paramagnetic moment, μ/sub eff/, for all the californium materials that were studied are reasonably consistent with theoretical values based on intermediate coupling models. All of the californium materials showed some indications of cooperative magnetic effects. The dhcp metal was observed to order ferromagnetically at 52 K, and all of the californium compounds studied showed signs of antiferromagnetic ordering, mostly at temperatures below 25 K. 91 refs., 50 figs., 19 tabs

  2. Californium Multiplier (CFX)

    International Nuclear Information System (INIS)

    The availability of 252Cf as an economical high-intensity neutron source has made it possible to construct compact neutron irradiation devices with widespread applications. The simplest such device consists of a single 252Cf source within a moderating and shielding medium. Higher neutron flux levels can be attained either through the use of more 252Cf or through source multiplication by means of a subcritical uranium assembly. Although the use of larger 252Cf sources to achieve higher neutron flux is technically straightforward, an economic penalty is paid as the source strength is increased. Larger californium sources imply larger initial investments to cover the cost of source material and larger operating costs resulting from the decay of the 252Cf source. A Californium Multiplier, the CFX, which produces a flux enhancement of 30 when compared to a conventional moderated 252Cf system has been designed, licensed, built, and tested by IRT Corporation. Such systems are now available on a commercial basis for both neutron radiography and neutron activation analysis. The first commercial CFX system was installed at the Research Laboratories of Eastman Kodak Company in Rochester, NY, in March 1975. This device, using 1 mg of 252Cf, is very stable and the neutron flux generated by the CFX is very reproducible. The performance characteristics of this system are summarized

  3. Californium--palladium metal neutron source material

    Science.gov (United States)

    Dahlen, B.L.; Mosly, W.C. Jr.; Smith, P.K.; Albenesius, E.L.

    1974-01-22

    Californium, as metal or oxide, is uniformly dispersed throughout a noble metal matrix, provided in compact, rod or wire form. A solution of californium values is added to palladium metal powder, dried, blended and pressed into a compact having a uni-form distribution of californium. The californium values are decomposed to californium oxide or metal by heating in an inert or reducing atmosphere. Sintering the compact to a high density closes the matrix around the dispersed californium. The sintered compact is then mechanically shaped into an elongated rod or wire form. (4 claims, no drawings) (Official Gazette)

  4. Californium-252 progress, report No. 7, April 1971

    Energy Technology Data Exchange (ETDEWEB)

    1971-12-31

    This report contains discusses of the following topics on Californium-252: First sales of californium-252; encapsulation services discussed; three new participants in market evaluation program; summer training programs to use californium; Californium-252 shipping casks available; Californium-252 questions and answers, radiotherapy; neutron radiography; natural resources exploration; nuclear safeguards; process control; dosimetry; neutron radiography; neutron shielding; and nuclear safeguards.

  5. Californium Electrodepositions at Oak Ridge National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Boll, Rose Ann [ORNL

    2015-01-01

    Electrodepositions of californium isotopes were successfully performed at Oak Ridge National Laboratory (ORNL) during the past year involving two different types of deposition solutions, ammonium acetate (NH4C2H3O2) and isobutanol ((CH3)2CHCH2OH). A californium product that was decay enriched in 251Cf was recovered for use in super-heavy element (SHE) research. This neutron-rich isotope, 251Cf, provides target material for SHE research for the potential discovery of heavier isotopes of Z=118. The californium material was recovered from aged 252Cf neutron sources in storage at ORNL. These sources have decayed for over 30 years, thus providing material with a very high 251Cf-to-252Cf ratio. After the source capsules were opened, the californium was purified and then electrodeposited using the isobutanol method onto thin titanium foils for use in an accelerator at the Joint Institute for Nuclear Research in Dubna, Russia. Another deposition method, ammonium acetate, was used to produce a deposition containing 1.7 0.1 Ci of 252Cf onto a stainless steel substrate. This was the largest single electrodeposition of 252Cf ever prepared. The 252Cf material was initially purified using traditional ion exchange media, such as AG50-AHIB and AG50-HCl, and further purified using a TEVA-NH4SCN system to remove any lanthanides, resulting in the recovery of 3.6 0.1 mg of purified 252Cf. The ammonium acetate deposition was run with a current of 1.0 amp, resulting in a 91.5% deposition yield. Purification and handling of the highly radioactive californium material created additional challenges in the production of these sources.

  6. Historical Review of Californium-252 Discovery and Development

    Science.gov (United States)

    Stoddard, D. H.

    1985-01-01

    This paper discusses the discovery and history of californium 252. This isotope may be synthesized by irradiating plutonium 239, plutonium 242, americium 243, or curium 244 with neutrons in a nuclear reactor. Various experiments and inventions involving Cf conducted at the Savannah River Plant are discussed. The evolution of radiotherapy using californium 252 is reviewed. (PLG)

  7. Historical review of californium-252 discovery and development

    International Nuclear Information System (INIS)

    This paper discusses the discovery and history of californium 252. This isotope may be synthesized by irradiating plutonium 239, plutonium 242, americium 243, or curium 244 with neutrons in a nuclear reactor. Various experiments and inventions involving 252Cf conducted at the Savannah River Plant are discussed. The evolution of radiotherapy using californium 252 is reviewed

  8. Californium-252: a remarkable versatile radioisotope

    Energy Technology Data Exchange (ETDEWEB)

    Osborne-Lee, I.W.; Alexander, C.W.

    1995-10-10

    A product of the nuclear age, Californium-252 ({sup 252}Cf) has found many applications in medicine, scientific research, industry, and nuclear science education. Californium-252 is unique as a neutron source in that it provides a highly concentrated flux and extremely reliable neutron spectrum from a very small assembly. During the past 40 years, {sup 252}Cf has been applied with great success to cancer therapy, neutron radiography of objects ranging from flowers to entire aircraft, startup sources for nuclear reactors, fission activation for quality analysis of all commercial nuclear fuel, and many other beneficial uses, some of which are now ready for further growth. Californium-252 is produced in the High Flux Isotope Reactor (HFIR) and processed in the Radiochemical Engineering Development Center (REDC), both of which are located at the Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee. The REDC/HFIR facility is virtually the sole supplier of {sup 252}Cf in the western world and is the major supplier worldwide. Extensive exploitation of this product was made possible through the {sup 252}Cf Market Evaluation Program, sponsored by the United States Department of Energy (DOE) [then the Atomic Energy Commission (AEC) and later the Energy Research and Development Administration (ERDA)]. This program included training series, demonstration centers, seminars, and a liberal loan policy for fabricated sources. The Market Evaluation Program was instituted, in part, to determine if large-quantity production capability was required at the Savannah River Laboratory (SRL). Because of the nature of the product and the means by which it is produced, {sup 252}Cf can be produced only in government-owned facilities. It is evident at this time that the Oak Ridge research facility can meet present and projected near-term requirements. The production, shipment, and sales history of {sup 252}Cf from ORNL is summarized herein.

  9. Californium-252: a remarkable versatile radioisotope

    International Nuclear Information System (INIS)

    A product of the nuclear age, Californium-252 (252Cf) has found many applications in medicine, scientific research, industry, and nuclear science education. Californium-252 is unique as a neutron source in that it provides a highly concentrated flux and extremely reliable neutron spectrum from a very small assembly. During the past 40 years, 252Cf has been applied with great success to cancer therapy, neutron radiography of objects ranging from flowers to entire aircraft, startup sources for nuclear reactors, fission activation for quality analysis of all commercial nuclear fuel, and many other beneficial uses, some of which are now ready for further growth. Californium-252 is produced in the High Flux Isotope Reactor (HFIR) and processed in the Radiochemical Engineering Development Center (REDC), both of which are located at the Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee. The REDC/HFIR facility is virtually the sole supplier of 252Cf in the western world and is the major supplier worldwide. Extensive exploitation of this product was made possible through the 252Cf Market Evaluation Program, sponsored by the United States Department of Energy (DOE) [then the Atomic Energy Commission (AEC) and later the Energy Research and Development Administration (ERDA)]. This program included training series, demonstration centers, seminars, and a liberal loan policy for fabricated sources. The Market Evaluation Program was instituted, in part, to determine if large-quantity production capability was required at the Savannah River Laboratory (SRL). Because of the nature of the product and the means by which it is produced, 252Cf can be produced only in government-owned facilities. It is evident at this time that the Oak Ridge research facility can meet present and projected near-term requirements. The production, shipment, and sales history of 252Cf from ORNL is summarized herein

  10. Californium-252 Neutron Therapy in China

    International Nuclear Information System (INIS)

    Californium-252 brachytherapy, believed to be the most successful source for neutron therapy, gives most of the cures as well as long-term and complication-free survivals. Chinese radiation oncologists were interested in californium neutron therapy (Cf-NT) in the early 1980s, but 252Cf sources for medical use were not available in China until 1992 when a californium joint venture was established by the China Institute of Atomic Energy (Beijing) and the Research Institute for Nuclear Reactors (Dimitrovgrad) of Russia. In 1995, 25 seeds of 252Cf with a strength of 3 μg each were sent to China for preclinical investigation. Three years later, a high dose rate (HDR) 252Cf source was imported and transferred into a home-made remote after-loader for intracavitary treatment in Chongqing, and a clinical trail was started in February 1999. This is the first time that Cf-NT was performed for cancer patients in China. Since then, Cf-NT in China has developed rapidly. It is estimated that one-tenth of those radiation oncology centers with brachytherapy practice will be equipped with californium units in 5 yr. That means more than 30 units will be in use in hospitals. That is significant compared with other countries, but it is just one, on average, for each province or one per 40 million people in China. Progress also has been achieved in the 252Cf treatment delivery equipment. Preliminary clinical trails showed complete response observed in all cases treated, with a rapid clearance of tumors and mild reactions in normal tissues. The short-term results are quite encouraging. To deal with problems due to the demand for Cf-NT in China, attention should be paid to the following particulars: (1) A high-strength miniature source is needed for HDR/MDR interstitial therapy to extend the Cf-NT coverage. (2) Basic work on radiophysics and radiobiology needs to be done, including source calibration, clinical dosimetry, clinical RBE determination, and Cf-NT quality assurance

  11. Californium-252 sales and loans at Oak Ridge National Laboratory

    International Nuclear Information System (INIS)

    The production and distribution in the United States of 252Cf has recently been consolidated at the Oak Ridge National Laboratory (ORNL). The 252Cf Industrial Sales/Loan Program and the 252Cf University Load Program, which were formerly located at the Savannah River Plant (SRP), have been combined with the californium production and distribution activities of the Transuranium Element Production Program at ORNL. Californium-252 is sold to commercial users in the form of bulk californium oxide, palladium-californium alloy pellets, or alloy wires. Neutron source capsules, which are fabricated for loans to DOE or other US government agencies, are still available in all forms previously available. The consolidation of all 252Cf distribution activities at the production site is expected to result in better service to users. In particular, customers for neutrons sources will be ale to select from a wider range of neutron source forms, including custom designs, through a single contact point

  12. The Enigmatic HH 255

    Science.gov (United States)

    Matt, Sean; Böhm, Karl-Heinz

    2003-03-01

    To gain insight into the nature of the peculiar Herbig-Haro object HH 255 (also called Burnham's nebula), we use previously published observations to derive information about the emission-line fluxes as a function of position within HH 255 and compare them with the well-studied and relatively well behaved bow shock HH 1. There are some qualitative similarities in the Hα and [O III] λ5007 lines in both objects. However, in contrast to the expectation of the standard bow-shock model, the fluxes of the [O I] λ6300, [S II] λ6731, and [N II] λ6583 lines are essentially constant along the axis of the flow, while the electron density decreases, over a large distance within HH 255. We also explore the possibility that HH 255 represents the emission behind a standing or quasi-stationary shock. The shock faces upwind, and we suggest, using theoretical arguments, that it may be associated with the collimation of the southern outflow from T Tauri. Using a simplified magnetohydrodynamic simulation to illustrate the basic concept, we demonstrate that the existence of such a shock at the north edge of HH 255 could indeed explain its unusual kinematic and ionization properties. Whether or not such a shock can explain the detailed emission-line stratification remains an open question.

  13. The Enigmatic HH 255

    CERN Document Server

    Matt, S; Matt, Sean; Bohm, Karl-Heinz

    2002-01-01

    To gain insight into the nature of the peculiar Herbig-Haro object HH 255 (also called Burnham's nebula), we use previously published observations to derive information about the emission line fluxes as a function of position within HH 255 and compare them with the well-studied, and relatively well-behaved bow shock HH 1. There are some qualitative similarities in the H$\\alpha$ and [O III] 5007 lines in both objects. However, in contrast to the expectation of the standard bow shock model, the fluxes of the [O I] 6300, [S II] 6731, and [N II] 6583 lines are essentially constant along the axis of the flow, while the electron density decreases, over a large distance within HH 255. We also explore the possibility that HH 255 represents the emission behind a standing or quasi-stationary shock. The shock faces upwind, and we suggest, using theoretical arguments, that it may be associated with the collimation of the southern outflow from T Tauri. Using a simplified magnetohydrodynamic simulation to illustrate the ba...

  14. Californium-252 encapsulation at the Savannah River Laboratory

    International Nuclear Information System (INIS)

    More than 1 g of the neutron-emitting isotope californium-252 has been encapsulated at SRL for worldwide medical, industrial, and research uses. Bulk sales packages have been prepared for the USDOE sales program since 1971. Doubly-encapsulated sources have been prepared for USDOE's market evaluation program since 1968. Californium-252 sources for loan and sales packages satisfy the criteria for Special Form Radioactive Material. Encapsulation is performed in special neutron-shielded containment facilities at SRL. Development of improved source and shipping package designs and processes is continuing. 17 figures

  15. Production, distribution and applications of californium-252 neutron sources

    International Nuclear Information System (INIS)

    The radioisotope 252Cf is routinely encapsulated into compact, portable, intense neutron sources with a 2.6-yr half-life. A source the size of a person's little finger can emit up to 1011 neutrons s-1. Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis (PGNAA) of coal, cement and minerals, as well as for detection and identification of explosives, land mines and unexploded military ordnance. Other uses are neutron radiography, nuclear waste assays, reactor start-up sources, calibration standards and cancer therapy. The inherent safety of source encapsulations is demonstrated by 30 yr of experience and by US Bureau of Mines tests of source survivability during explosions. The production and distribution center for the US Department of Energy (DOE) Californium Program is the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory (ORNL). DOE sells 252Cf to commercial reencapsulators domestically and internationally. Sealed 252Cf sources are also available for loan to agencies and subcontractors of the US government and to universities for educational, research and medical applications. The REDC has established the Californium User Facility (CUF) for Neutron Science to make its large inventory of 252Cf sources available to researchers for irradiations inside uncontaminated hot cells. Experiments at the CUF include a land mine detection system, neutron damage testing of solid-state detectors, irradiation of human cancer cells for boron neutron capture therapy experiments and irradiation of rice to induce genetic mutations

  16. Production, distribution and applications of californium-252 neutron sources.

    Science.gov (United States)

    Martin, R C; Knauer, J B; Balo, P A

    2000-01-01

    The radioisotope 252Cf is routinely encapsulated into compact, portable, intense neutron sources with a 2.6-yr half-life. A source the size of a person's little finger can emit up to 10(11) neutrons s(-1). Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis (PGNAA) of coal, cement and minerals, as well as for detection and identification of explosives, land mines and unexploded military ordinance. Other uses are neutron radiography, nuclear waste assays, reactor start-up sources, calibration standards and cancer therapy. The inherent safety of source encapsulations is demonstrated by 30 yr of experience and by US Bureau of Mines tests of source survivability during explosions. The production and distribution center for the US Department of Energy (DOE) Californium Program is the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory (ORNL). DOE sells 252Cf to commercial reencapsulators domestically and internationally. Sealed 252Cf sources are also available for loan to agencies and subcontractors of the US government and to universities for educational, research and medical applications. The REDC has established the Californium User Facility (CUF) for Neutron Science to make its large inventory of 252Cf sources available to researchers for irradiations inside uncontaminated hot cells. Experiments at the CUF include a land mine detection system, neutron damage testing of solid-state detectors, irradiation of human cancer cells for boron neutron capture therapy experiments and irradiation of rice to induce genetic mutations. PMID:11003521

  17. Production, Distribution, and Applications of Californium-252 Neutron Sources

    Energy Technology Data Exchange (ETDEWEB)

    Balo, P.A.; Knauer, J.B.; Martin, R.C.

    1999-10-03

    The radioisotope {sup 252}Cf is routinely encapsulated into compact, portable, intense neutron sources with a 2.6-year half-life. A source the size of a person's little finger can emit up to 10{sup 11} neutrons/s. Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis (PGNAA) of coal, cement, and minerals, as well as for detection and identification of explosives, laud mines, and unexploded military ordnance. Other uses are neutron radiography, nuclear waste assays, reactor start-up sources, calibration standards, and cancer therapy. The inherent safety of source encapsulations is demonstrated by 30 years of experience and by U.S. Bureau of Mines tests of source survivability during explosions. The production and distribution center for the U. S Department of Energy (DOE) Californium Program is the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory (ORNL). DOE sells The radioisotope {sup 252}Cf is routinely encapsulated into compact, portable, intense neutron sources with a 2.6- year half-life. A source the size of a person's little finger can emit up to 10 neutrons/s. Californium-252 is used commercially as a reliable, cost-effective neutron source for prompt gamma neutron activation analysis (PGNAA) of coal, cement, and minerals, as well as for detection and identification of explosives, laud mines, and unexploded military ordnance. Other uses are neutron radiography, nuclear waste assays, reactor start-up sources, calibration standards, and cancer therapy. The inherent safety of source encapsulations is demonstrated by 30 years of experience and by U.S. Bureau of Mines tests of source survivability during explosions. The production and distribution center for the U. S Department of Energy (DOE) Californium Program is the Radiochemical Engineering Development Center (REDC) at Oak Ridge National Laboratory(ORNL). DOE sells {sup 252}Cf to commercial

  18. Production of extra pure curium and californium preparations

    International Nuclear Information System (INIS)

    Preparations of curium-244,245,248 and californium-249,252 are used for the production of ionizing radiation sources for different applications and fundamental nuclear-physical investigations, placing high requirements on the radiochemical and chemical purity of the preparations. Extraction chromatography using di-(2-ethylhexyl)phosphoric acid (D2EHPA) as extractant was chosen to prepare extra pure curium and californium preparations. In order to identify the optimal conditions of Cm-Cf separation and to remove impurities from them (reagent and other impurities), investigations were performed into the effect of impurities (Na+, Ca2+, Al3+, Fe2+, Fe3+ taken as example), extractant and eluent concentration and solution flow rate on the efficiency of mutual purification of Cm and Cf. Both theoretical and experimental estimations were made of the maximum concentration at which the impurities do not affect the process. The conditions chosen allow mutual purification of milligram amounts of Cm and Cf from impurity elements at E(pur) =102 - 103 during a single chromatographic cycle (E(pur) =>103) using a column with 5 - 10 cm3 volume. In this case the production yield exceeds 98%. The purification of milligram amounts of curium and californium from fission products (lanthanides in general, cerium in particular) was performed in D2EHPA-decane-PbO2-HNO3 and D2EHPA-decane-DTPA-H3-Cit extraction chromatography systems. In order to establish the optimal conditions, the effect of [D2EHPA] and eluent on the mutual purification of Cm and Cf and on their purification from cerium and impurity elements was studied in the D2EHPA-decane-PbO2-HNO3 system. During a single chromatographic cycle the mutual purification factors of TPE and of their purification from impurity cations achieve 102-103, from cerium - E(pur) > 10. In the D2EHPA-decane-DTPA-H3Cit system, the effect of concentration of extractant and eluent pH on the efficiency of Cm and Cf purification from lanthanides was

  19. 40 CFR 264.255 - [Reserved

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 25 2010-07-01 2010-07-01 false 264.255 Section 264.255 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Waste Piles § 264.255...

  20. 7 CFR 65.255 - United States.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false United States. 65.255 Section 65.255 Agriculture..., PEANUTS, AND GINSENG General Provisions Definitions § 65.255 United States. United States means the 50... United States....

  1. 42 CFR 447.255 - Related information.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Related information. 447.255 Section 447.255 Public... Facility Services Payment Rates § 447.255 Related information. The Medicaid agency must submit, with the assurances described in § 447.253(a), the following information: (a) The amount of the estimated...

  2. 33 CFR 117.255 - Potomac River.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Potomac River. 117.255 Section 117.255 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements District of Columbia § 117.255 Potomac River. (a)...

  3. 29 CFR 1910.255 - Resistance welding.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 5 2010-07-01 2010-07-01 false Resistance welding. 1910.255 Section 1910.255 Labor... OCCUPATIONAL SAFETY AND HEALTH STANDARDS Welding, Cutting and Brazing § 1910.255 Resistance welding. (a.... Ignitron tubes used in resistance welding equipment shall be equipped with a thermal protection switch....

  4. 20 CFR 632.255 - Program planning.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Program planning. 632.255 Section 632.255... EMPLOYMENT AND TRAINING PROGRAMS Summer Youth Employment and Training Programs § 632.255 Program planning. (a... with its title IV program. (2) Native American grantees shall use the planning process described...

  5. 40 CFR 96.255 - Banking.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Banking. 96.255 Section 96.255 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) NOX BUDGET... Tracking System § 96.255 Banking. (a) CAIR SO2 allowances may be banked for future use or transfer in...

  6. Prompt neutron spectrum of the spontaneous fission of californium-252

    International Nuclear Information System (INIS)

    The californium-252 spontaneous fission neutron spectrum was measured in the energy range of 0.01 to 10 MeV by the time-of-flight technique using various neutron detectors. The measurements of 252Cf neutron spectrum at energies of 0.01 to 5 MeV were performed as a function of fission fragment kinetic energy. The mean neutron spectrum energy in the range of 0.7 to 10 MeV was found from the results of measurements. The irregularity in the 252Cf neutron spectrum in the neutron energy range of less than 0.7 MeV compared to theoretical values is discussed. The mechanism of 252Cf neutron emission is also discussed on the basis of neutron yield angle measurements. 12 references

  7. Separation of californium from actinides and lanthanides in aqueous solution by electrochemical formation of amalgams

    International Nuclear Information System (INIS)

    The electrochemical reduction of transneptunium elements (Pu to Cf) and rare earths (Eu, Tm) from aqueous complexing solutions to amalgams was studied over a wide range of cathodic potentials in order to achieve optimal separation of californium. The reduction in acetate media (pH 4.5-4.6) at potentials around -1.7 to -1.9 V1 leads to a quantitative extraction of californium into the mercury phase, while more negative potentials are required for the reduction of the lighter transuranium elements and of the lanthanides. Hence, the optimal conditions for the separation of californium from the investigated actinides and lanthanides were determined. Separation factors α between 25 and 90 were found except in the case of Cf/Eu, where poor values (α varying from 7 to 12) were observed. More negative cathodic potentials decrease the selectivity of the reduction process. A similar study with lithium citrate solutions (pH ∝6) shows that satisfactory separation of californium from lighter and heavier actinides is achievable. A separation factor of 88 is obtained for Cf/Am at -1.98 V. The anodic stripping of mixed amalgams (Pu, Am, Cm, Bk, Tm and Cf) Hg in nitric and acetic acid soultions at potentials ranging from +0.1 to -0.7 V proceeds slowly and proved to be ineffective for the separation of californium from light actinides under conditions described. (orig.)

  8. Biomedical neutron research at the Californium User Facility for neutron science

    International Nuclear Information System (INIS)

    The Californium User Facility for Neutron Science has been established at Oak Ridge National Laboratory (ORNL). The Californium User Facility (CUF) is a part of the larger Californium Facility, which fabricates and stores compact 252Cf neutron sources for worldwide distribution. The CUF can provide a cost-effective option for research with 252Cf sources. Three projects at the CUF that demonstrate the versatility of 252Cf for biological and biomedical neutron-based research are described: future establishment of a 252Cf-based neutron activation analysis system, ongoing work to produce miniature high-intensity, remotely afterloaded 252Cf sources for tumor therapy, and a recent experiment that irradiated living human lung cancer cells impregnated with experimental boron compounds to test their effectiveness for boron neutron capture therapy

  9. Biomedical neutron research at the Californium User Facility for neutron science

    Energy Technology Data Exchange (ETDEWEB)

    Martin, R.C. [Oak Ridge National Lab., TN (United States); Byrne, T.E. [Roane State Community College, Harriman, TN (United States); Miller, L.F. [Univ. of Tennessee, Knoxville, TN (United States)

    1997-04-01

    The Californium User Facility for Neutron Science has been established at Oak Ridge National Laboratory (ORNL). The Californium User Facility (CUF) is a part of the larger Californium Facility, which fabricates and stores compact {sup 252}Cf neutron sources for worldwide distribution. The CUF can provide a cost-effective option for research with {sup 252}Cf sources. Three projects at the CUF that demonstrate the versatility of {sup 252}Cf for biological and biomedical neutron-based research are described: future establishment of a {sup 252}Cf-based neutron activation analysis system, ongoing work to produce miniature high-intensity, remotely afterloaded {sup 252}Cf sources for tumor therapy, and a recent experiment that irradiated living human lung cancer cells impregnated with experimental boron compounds to test their effectiveness for boron neutron capture therapy.

  10. Emergence of californium as the second transitional element in the actinide series.

    Science.gov (United States)

    Cary, Samantha K; Vasiliu, Monica; Baumbach, Ryan E; Stritzinger, Jared T; Green, Thomas D; Diefenbach, Kariem; Cross, Justin N; Knappenberger, Kenneth L; Liu, Guokui; Silver, Mark A; DePrince, A Eugene; Polinski, Matthew J; Van Cleve, Shelley M; House, Jane H; Kikugawa, Naoki; Gallagher, Andrew; Arico, Alexandra A; Dixon, David A; Albrecht-Schmitt, Thomas E

    2015-01-01

    A break in periodicity occurs in the actinide series between plutonium and americium as the result of the localization of 5f electrons. The subsequent chemistry of later actinides is thought to closely parallel lanthanides in that bonding is expected to be ionic and complexation should not substantially alter the electronic structure of the metal ions. Here we demonstrate that ligation of californium(III) by a pyridine derivative results in significant deviations in the properties of the resultant complex with respect to that predicted for the free ion. We expand on this by characterizing the americium and curium analogues for comparison, and show that these pronounced effects result from a second transition in periodicity in the actinide series that occurs, in part, because of the stabilization of the divalent oxidation state. The metastability of californium(II) is responsible for many of the unusual properties of californium including the green photoluminescence. PMID:25880116

  11. 40 CFR 97.255 - Banking.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Banking. 97.255 Section 97.255 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... Banking. (a) CAIR SO2 allowances may be banked for future use or transfer in a compliance account or...

  12. Fissile analysis of Hanford waste using Californium Multiplier/Delayed Neutron Counter system

    International Nuclear Information System (INIS)

    Measurement of low-level (10 ng/g or lower) fissile material (mainly plutonium) in Hanford waste and process samples is becoming increasingly important. A system has been designed consisting of a Californium Multiplier (CFX) and a Delayed Neutron Counter (DNC) to characterize these samples. This report describes hardware and analytical capability of the CFX/DNC system

  13. Emergence of californium as the second transitional element in the actinide series

    OpenAIRE

    Cary, Samantha K.; Vasiliu, Monica; Baumbach, Ryan E.; Stritzinger, Jared T.; GREEN, THOMAS D.; Diefenbach, Kariem; Cross, Justin N.; Knappenberger, Kenneth L.; Liu, Guokui; Silver, Mark A.; DePrince, A. Eugene; Polinski, Matthew J.; Van Cleve, Shelley M.; House, Jane H.; Kikugawa, Naoki

    2015-01-01

    A break in periodicity occurs in the actinide series between plutonium and americium as the result of the localization of 5f electrons. The subsequent chemistry of later actinides is thought to closely parallel lanthanides in that bonding is expected to be ionic and complexation should not substantially alter the electronic structure of the metal ions. Here we demonstrate that ligation of californium(III) by a pyridine derivative results in significant deviations in the properties of the resu...

  14. 16 CFR 255.3 - Expert endorsements.

    Science.gov (United States)

    2010-01-01

    ... ENDORSEMENTS AND TESTIMONIALS IN ADVERTISING § 255.3 Expert endorsements. (a) Whenever an advertisement... characteristics with respect to which he or she is expert and which are relevant to an ordinary consumer's use of.... To the extent that the advertisement implies that the endorsement was based upon a comparison,...

  15. 17 CFR 256.255 - Accumulated deferred investment tax credits.

    Science.gov (United States)

    2010-04-01

    ... investment tax credits. 256.255 Section 256.255 Commodity and Securities Exchanges SECURITIES AND EXCHANGE... COMPANIES, PUBLIC UTILITY HOLDING COMPANY ACT OF 1935 8. Deferred Credits § 256.255 Accumulated deferred investment tax credits. (a) This account shall be credited and account 411.5, Investment tax credit,...

  16. 42 CFR 441.255 - Sterilization by hysterectomy.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Sterilization by hysterectomy. 441.255 Section 441.255 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Sterilizations § 441.255 Sterilization by hysterectomy. (a) FFP is not available in expenditures for...

  17. 4 CFR 25.5 - Conformity with signs and directions.

    Science.gov (United States)

    2010-01-01

    ... 4 Accounts 1 2010-01-01 2010-01-01 false Conformity with signs and directions. 25.5 Section 25.5 Accounts GOVERNMENT ACCOUNTABILITY OFFICE GENERAL PROCEDURES CONDUCT IN THE GOVERNMENT ACCOUNTABILITY OFFICE BUILDING AND ON ITS GROUNDS § 25.5 Conformity with signs and directions. Persons in the...

  18. 33 CFR 106.255 - Security systems and equipment maintenance.

    Science.gov (United States)

    2010-07-01

    ... maintenance. 106.255 Section 106.255 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND... Shelf (OCS) Facility Security Requirements § 106.255 Security systems and equipment maintenance. (a... procedures for identifying and responding to security system and equipment failures or malfunctions....

  19. 49 CFR 178.255-8 - Safety devices.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Safety devices. 178.255-8 Section 178.255-8 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY... Specifications for Portable Tanks § 178.255-8 Safety devices. (a) See § 173.315(i) of this subchapter. (b)...

  20. 49 CFR 178.255-3 - Expansion domes.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Expansion domes. 178.255-3 Section 178.255-3 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY... Specifications for Portable Tanks § 178.255-3 Expansion domes. (a) Expansion domes, if applied, must have...

  1. 49 CFR 178.255-13 - Repair of tanks.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Repair of tanks. 178.255-13 Section 178.255-13 Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY... Specifications for Portable Tanks § 178.255-13 Repair of tanks. (a) Tanks failing to meet the test may...

  2. Spontaneous Partitioning of Californium from Curium: Curious Cases from the Crystallization of Curium Coordination Complexes

    Energy Technology Data Exchange (ETDEWEB)

    Cary, Samantha K.; Silver, Mark A.; Liu, Guokui; Wang, Jamie C.; Bogart, Justin A.; Stritzinger, Jared T.; Arico, Alexandra A.; Hanson, Kenneth; Schelter, Eric J.; Albrecht-Schmitt, Thomas E.

    2015-12-07

    The reaction of 248CmCl3 with excess 2,6-pyridinedicarboxylic acid (DPA) under mild solvothermal conditions results in crystallization of the tris-chelate complex Cm(HDPA)3·H2O. Approximately half of the curium remains in solution at the end of this process, and evaporation of the mother liquor results in crystallization of the bis-chelate complex [Cm(HDPA)- (H2DPA)(H2O)2Cl]Cl·2H2O. 248Cm is the daughter of the α decay of 252Cf and is extracted in high purity from this parent. However, trace amounts of 249,250,251Cf are still present in all samples of 248Cm. During the crystallization of Cm(HDPA)3·H2O and [Cm(HDPA)(H2DPA)(H2O)2Cl]Cl·2H2O, californium(III) spontaneously separates itself from the curium complexes and is found doped within crystals of DPA in the form of Cf(HDPA)3. These results add to the growing body of evidence that the chemistry of californium is fundamentally different from that of earlier actinides.

  3. 21 CFR 137.255 - Bolted white corn meal.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Bolted white corn meal. 137.255 Section 137.255... Flours and Related Products § 137.255 Bolted white corn meal. (a) Bolted white corn meal is the food... of the finished bolted white corn meal does not exceed by more than 0.3 percent the fat content...

  4. 14 CFR 25.255 - Out-of-trim characteristics.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Out-of-trim characteristics. 25.255 Section 25.255 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION AIRCRAFT...-trim characteristics. (a) From an initial condition with the airplane trimmed at cruise speeds up...

  5. 15 CFR 25.5 - Review by the reviewing official.

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Review by the reviewing official. 25.5... § 25.5 Review by the reviewing official. (a) If, based on the report of the investigating official under § 25.4(b), the reviewing official determines that there is adequate evidence to believe that...

  6. 40 CFR 255.1 - Scope and purpose.

    Science.gov (United States)

    2010-07-01

    ... types (residential and commercial solid waste, hazardous wastes, industrial sludges and pretreatment... Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES IDENTIFICATION OF REGIONS AND AGENCIES FOR SOLID WASTE MANAGEMENT General Provisions § 255.1 Scope and purpose. (a)...

  7. Fission of 255,256Es, 255-257Fm, and 258Md at moderate excitation energies

    NARCIS (Netherlands)

    Britt, H.C.; Hoffman, D.C.; Plicht, J. van der; Wilhelmy, J.; Cheifetz, E.; Dupzyk, R.J.; Lougheed, R.W.

    1984-01-01

    The fission of 255,256Es, 255-257Fm, and 258Md has been studied in the excitation energy range from threshold to 25 MeV. A target of 254Es was used in the direct reaction studies; (d,pf), (t,pf), (3He,df), (3He,pf), and in the compound induced fission reactions formed with p, d, t, and α particle pr

  8. Manganese determination om minerals by activation analysis, using the californium-252 as a neutron source

    International Nuclear Information System (INIS)

    Neutron Activation Analysis, using a Californium-252 neutron source, has been applied for the determination of manganese in ores such as pyrolusite, rodonite (manganese silicate)' and blending used in dry-batteries The favorable nuclear properties of manganese, such as high thermal neutron cross-section for the reaction 55Mn (n.gamma)56 Mn, high concentration of manganese in the matrix and short half - life of 56Mn, are an ideal combination for non-destructive analysis of manganese in ores. Samples and standards of manganese dioxide were irradiated for about 20 minutes, followed by a 4 to 15 minutes decay and counted in a single channel pulse-height discrimination using a NaI(Tl) scintillation detector. Counting time was equal to 10 minutes. The interference of nuclear reactions 56Fe(n,p)56Mn and 59 Co (n, α)56 were studied, as well as problems in connection with neutron shadowing during irradiation, gamma-rays attenuation during counting and influence of granulometry of samples. One sample,was also analysed by wet-chemical method (sodium bismuthate) in order to compare results. As a whole, i t was shown that the analytical method of neutron activation for manganese in ores and blending, is a method simple, rapid and with good precision and accuracy. (author)

  9. Long-term effects of an intracavitary treatment with californium-252 on normal tissue

    International Nuclear Information System (INIS)

    About one hundred fifty swine were exposed to either radium-226 or californium-252 sources in the uterine cervix to determine an RBE for both acute and long-term effects. That value for early changes in the tissues at risk in the treatment of cervical cancer was between 6.2 and 6.8. The incidence of complications increased with time after exposure, especially among animals treated with 252Cf. Analysis of rectal injury showed that ulceration occurred frequently within a year postexposure at doses between 1600 and 2400 rad calculated at 2 cm lateral to the source midline. Fat necrosis and smooth muscle atrophy, resulting in a local rectal stricture, were delayed changes observed in some animals. The lower ureter was the site for a greater frequency of complications than the GI tract. Ureteral stricture often occurred at doses of 1200 rad from 252Cf and 7000 rad from 226Ra. Observation of delayed effects in the uterine-cervix in animals held up to 4 years postexposure indicate that the RBE for 252Cf may be increased to a value as high as 18, while repair may have even decreased it to about 5.6 in the rectum. Fifty swine are still being observed for long-term effects after doses above 800 rad from 252Cf and 5000 rad from 226Ra

  10. Application of TSH bioindicator for studying the biological efficiency of neutrons from californium-252 source

    Energy Technology Data Exchange (ETDEWEB)

    Cebulska-Wasilewska, A.; Rekas, K. [Institute of Nuclear Physics, Cracow (Poland); Kim, J.K. [Korea Atomic Energy Research Inst., Taejon (Korea, Republic of)

    1997-12-31

    The effectiveness of neutrons from a Californium-252 source in the induction of various abnormalities in the Tradescantia clone 4430 stamen hair cells (TSH-assay) was studied. The special attention was paid to check whether any enhancement in effects caused by process of boron neutron capture is visible in the cells enriched with boron ions. Two chemicals (borax and BSH) were applied to introduce boron-10 ions into cells. Inflorescence, normal or pretreated with chemicals containing boron, were irradiated in the air with neutrons from a Cf-252 source at KAERI, Taejon, Korea. To estimate the relative biological effectiveness (RBE) in the induction of gene mutations of the neutron beam under the study, Tradescantia inflorescences, without any chemical pretreatment, were irradiated with various doses of X-rays. The ranges of radiation doses used were 0-0.1 Gy in neutrons and 0-0.5 Gy in X-rays. After the time needed to complete the postirradiation repair Tradescantia cuttings were transferred to Cracow, where screening of gene and lethal; mutations, cell cycle alterations in somatic cells have been done, and dose response relationships were figured. The maximal RBE values were estimated in the range of 4.6-6.8. Alterations of RBE value were observed; from 6.8 to 7.8 in the case of plants pretreated with 240 ppm of B-10 from borax, and 4.6 to 6.1 in the case of 400 ppm of B-10 from BSH. Results showed a slight, although statistically insignificant increase in biological efficacy of radiation from the Cf-252 source in samples pretreated with boron containing chemicals. (author)

  11. Application of TSH bioindicator for studying the biological efficiency of neutrons from californium-252 source

    International Nuclear Information System (INIS)

    The effectiveness of neutrons from a Californium-252 source in the induction of various abnormalities in the Tradescantia clone 4430 stamen hair cells (TSH-assay) was studied. The special attention was paid to check whether any enhancement in effects caused by process of boron neutron capture is visible in the cells enriched with boron ions. Two chemicals (borax and BSH) were applied to introduce boron-10 ions into cells. Inflorescence, normal or pretreated with chemicals containing boron, were irradiated in the air with neutrons from a Cf-252 source at KAERI, Taejon, Korea. To estimate the relative biological effectiveness (RBE) in the induction of gene mutations of the neutron beam under the study, Tradescantia inflorescences, without any chemical pretreatment, were irradiated with various doses of X-rays. The ranges of radiation doses used were 0-0.1 Gy in neutrons and 0-0.5 Gy in X-rays. After the time needed to complete the postirradiation repair Tradescantia cuttings were transferred to Cracow, where screening of gene and lethal; mutations, cell cycle alterations in somatic cells have been done, and dose response relationships were figured. The maximal RBE values were estimated in the range of 4.6-6.8. Alterations of RBE value were observed; from 6.8 to 7.8 in the case of plants pretreated with 240 ppm of B-10 from borax, and 4.6 to 6.1 in the case of 400 ppm of B-10 from BSH. Results showed a slight, although statistically insignificant increase in biological efficacy of radiation from the Cf-252 source in samples pretreated with boron containing chemicals. (author)

  12. Oxygen enhancement ratio (OER) and therapeutic gain factor (GF) for californium-252 at low dose rate

    International Nuclear Information System (INIS)

    The potential benefit of the introduction of californium-252 in interstitial and intracavitary therapy is related to the greater efficiency of its neutron emission against anoxic cancer cells. In that respect, the oxygen enhancement ratio (OER) of the 252Cf emission has been determined for a continuous low dose rate irradiation. The biological system is growth inhibition in Vicia faba bean roots. A new Vicia faba ''BelB'' strain has been used, which better tolerates long periods (up to about 10 hours) of anoxia. In a first series of experiments, for a 252Cf (Dsub(n+γ)) dose rate of 0.11 Gy.h-1, an OER of 1.4+-0.1 was observed (the γ contribution Dγ to the total absorbed dose Dsub(n+γ) was 0.35 at the position of the root tips). In a second series of experiments, in somewhat different geometrical conditions with a 252Cf (Dsub(n+γ)) dose rate of 0.13 Gy.h-1, an OER of 1.5+-0.1 was observed (Dγ/Dsub(n+γ)=0.42). The OER values observed for similar irradiation times, with iridium-192 γ-rays, were 2.3+-0.2 and 2.6+-0.1 respectively, which leads to therapeutic gain factors (GF) of 1.6 and 1.7 respectively. These GF values are slightly lower than those previously obtained (GF=1.8) on the same system, with d(50)-Be p(75)-Be and 15 MeV neutron beams

  13. Clinical Report on Californium-252 Neutron Intraluminal Brachytherapy Combined with External Irradiation for Cervical Carcinoma Treatment

    Institute of Scientific and Technical Information of China (English)

    Huanyu Zhao; Keming Wang; Jian Sun; Xin Geng; Weiming Zhang

    2006-01-01

    OBJECTIVE To observe the curative effects and complications of californium-252 (252Cf) neutron intraluminal brachytherapy (IBT) combined with external irradiation (El) for treatment of cervical carcinoma.METHODS From December 2000 to December 2004, 128 cases of cervical carcinoma staged into ⅡA~ⅢB according to the International Federation of Gynecology and Obstetrics (FIGO) standards were treated with 252Cf neutron IBT using 8~10 Gy per fraction, once a week. The total dose at reference A point was 36~40 Gy in 4~5 fractions. From the second day after 252Cf neutron IBT treatment, the whole pelvic cavity was treated with 60Co γ-ray El, applying 2 Gy per fraction, 4 times per week. After 20~25 Gy of El, the center of the whole pelvic field was blocked with 4 cm of lead in width. The total dose of El was 45~50 Gy.RESULTS The short-term therapeutic effects were CR 95.3% and PR 4.7%. The 3 and 5-year local control rates were 93.5% and 87.9%. The overall 3-year survival rate was 87.5% and for Stages Ⅱ and Ⅲ , 90.9%and 81.5% respectively; the overall 5-year survival rate was 70% and for Stages Ⅱ and Ⅲ, 76.2% and 61% respectively. The rate of radiation complications was 4.7% for radiation cystitis, 7.8% for radiation proctitis, 6.3%for vagina contracture and adhesion and 5.5% for protracted radiation proctitis.CONCLUSION An combination of 252Cf neutron IBT with El for treatment of cervical carcinoma can be well-tolerated by cervical carcinoma patients. The rate of local tumor control is high and radiation complications are few.

  14. Divalent and trivalent gas-phase coordination complexes of californium: evaluating the stability of Cf(ii).

    Science.gov (United States)

    Dau, Phuong D; Shuh, David K; Sturzbecher-Hoehne, Manuel; Abergel, Rebecca J; Gibson, John K

    2016-08-01

    The divalent oxidation state is increasingly stable relative to the trivalent state for the later actinide elements, with californium the first actinide to exhibit divalent chemistry under moderate conditions. Although there is evidence for divalent Cf in solution and solid compounds, there are no reports of discrete complexes in which Cf(II) is coordinated by anionic ligands. Described here is the divalent Cf methanesulfinate coordination complex, Cf(II)(CH3SO2)3(-), prepared in the gas phase by reductive elimination of CH3SO2 from Cf(III)(CH3SO2)4(-). Comparison with synthesis of the corresponding Sm and Cm complexes reveals reduction of Cf(III) and Sm(III), and no evidence for reduction of Cm(III). This reflects the comparative 3+/2+ reduction potentials: Cf(3+) (-1.60 V) ≈ Sm(3+) (-1.55 V) ≫ Cm(3+) (-3.7 V). Association of O2 to the divalent complexes is attributed to formation of superoxides, with recovery of the trivalent oxidation state. The new gas-phase chemistry of californium, now the heaviest element to have been studied in this manner, provides evidence for Cf(II) coordination complexes and similar chemistry of Cf and Sm. PMID:27424652

  15. 39 CFR 255.7 - Special arrangements for postal services.

    Science.gov (United States)

    2010-07-01

    ... INFORMATION TECHNOLOGY § 255.7 Special arrangements for postal services. Members of the public who are unable... carriers. (iii) Self-service postal centers. Self-service postal centers contain vending equipment for the... 39 Postal Service 1 2010-07-01 2010-07-01 false Special arrangements for postal services....

  16. 14 CFR 255.5 - Contracts with participating carriers.

    Science.gov (United States)

    2010-01-01

    ... (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE COMPUTER RESERVATIONS SYSTEMS § 255.5 Contracts with participating carriers. (a) No system may require a carrier to maintain any particular level of participation or buy any enhancements in its system on the basis of participation levels or enhancements selected...

  17. 24 CFR 203.255 - Insurance of mortgage.

    Science.gov (United States)

    2010-04-01

    ... obligations under § 203.10 concerning informed consumer choice for prospective FHA mortgagors); (4) Not... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Insurance of mortgage. 203.255... URBAN DEVELOPMENT MORTGAGE AND LOAN INSURANCE PROGRAMS UNDER NATIONAL HOUSING ACT AND OTHER...

  18. 16 CFR 255.4 - Endorsements by organizations.

    Science.gov (United States)

    2010-01-01

    ... endorsement must be reached by a process sufficient to ensure that the endorsement fairly reflects the..., in conjunction with a proper exercise of its expertise in evaluating the product under § 255.3... products. Example: A mattress seller advertises that its product is endorsed by a chiropractic...

  19. 50 CFR 216.255 - Requirements for monitoring and reporting.

    Science.gov (United States)

    2010-10-01

    ... ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE MARINE MAMMALS REGULATIONS GOVERNING THE TAKING AND... in the Gulf of Mexico § 216.255 Requirements for monitoring and reporting. (a) The Holder of the... mammals that inhabit the northern Gulf of Mexico; (2) Have on-site marine mammal observers approved...

  20. 27 CFR 24.255 - Bottling or packing wine.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Bottling or packing wine..., DEPARTMENT OF THE TREASURY LIQUORS WINE Storage, Treatment and Finishing of Wine Bottling, Packing, and Labeling of Wine § 24.255 Bottling or packing wine. (a) General. Proprietors of a bonded wine premises...

  1. 33 CFR 110.255 - Ponce Harbor, P.R.

    Science.gov (United States)

    2010-07-01

    ...) Floats for marking anchors in place will be allowed; stakes or mooring piles are prohibited. 33 CFR Ch. I... ANCHORAGE REGULATIONS Anchorage Grounds § 110.255 Ponce Harbor, P.R. (a) Small-craft anchorage. On the...′ true, 1,800 feet; thence 195° true, 900 feet to the point of beginning. (b) The regulations. (1)...

  2. Solving the Hydration Structure of the Heaviest Actinide Aqua Ion Known: The Californium(III) Case

    Energy Technology Data Exchange (ETDEWEB)

    Den Auwer, Ch.; Guillaumont, D. [CEA Marcoule, Nucl Energy Div, Radiochem Proc Dept, SCPS LILA, 30 (France); Galbis, E.; Pappalardo, Rafael R.; Marcos Sanchez, E. [Univ Seville, Dept Quim Fis, E-41012 Seville (Spain); Hernandez-Cobos, J. [Inst Ciencias Fis, Cuernavaca 62251, Morelos (Mexico); Le Naour, C.; Simoni, E. [Univ Paris Sud, Inst Phys Nucl Orsay, Paris (France)

    2010-07-01

    In summary, the first MC simulation of the trivalent cation of californium, based on an exchangeable hydrated ion-water intermolecular potential, has been shown to extend and improve the hydrated ion model. Likewise, the CfL{sub III}-edge EXAFS spectrum of an acidic 1 mm Cf(ClO{sub 4}){sub 3} aqueous solution recorded under optimized experimental conditions has greatly improved the signal/noise ratio of the only previously recorded spectrum. The comparison of the experimental EXAFS spectrum with the two computed ones, obtained from two different intermolecular potentials that predict eight (BP86) or nine (MP2) water molecules in the first coordination shell, leads to the conclusion that the lowest hydration number is preferred. Then, as Cf{sup III} is the heaviest actinide aqua ion for which there is experimental information, the actinide contraction is supported by the present study. (For U{sup III}, R{sub U-O}=2.56 Angstroms, and CN=9{+-}1; for Pu{sup III}, R{sub Pu-O}=2.51 Angstroms and CN=9{+-}1; for Cm{sup III}, R{sub Cm-O}=2.47 Angstroms and CN=9{+-}1). The role of the second hydration shell is important in defining the structure and dynamics of the Cf{sup III} aqua ion, but the contribution of second-shell water molecules to the EXAFS signal as back-scatters is marginal. Finally, this work gives an illustrative example of the benefits which can be achieved from the combination of experimental X-ray absorption spectroscopy and computer simulations. The usefulness of the simultaneous analysis of the results as well as the importance of the structural statistical average has been clearly demonstrated herein. Each technique independently was not adequate. We believe that this study traces out a still poorly explored combined methodology which may be extremely useful for many other complexes and chemical problems. A systematic theoretical and experimental examination of the other known actinide cations on the same basis should be undertaken to confirm the

  3. 40 CFR 255.33 - Inclusion of Federal facilities and Native American Reservations.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Inclusion of Federal facilities and Native American Reservations. 255.33 Section 255.33 Protection of Environment ENVIRONMENTAL PROTECTION... Responsibilities of Identified Agencies and Relationship to Other Programs § 255.33 Inclusion of Federal...

  4. Development of electron beam ion source charge breeder for rare isotopes at Californium Rare Isotope Breeder Upgrade

    Energy Technology Data Exchange (ETDEWEB)

    Kondrashev, S.; Dickerson, C.; Levand, A.; Ostroumov, P. N.; Pardo, R. C.; Savard, G.; Vondrasek, R. [Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Alessi, J.; Beebe, E.; Pikin, A. [Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973 (United States); Kuznetsov, G. I.; Batazova, M. A. [Budker Institute of Nuclear Physics, Novosibirsk 630090 (Russian Federation)

    2012-02-15

    Recently, the Californium Rare Isotope Breeder Upgrade (CARIBU) to the Argonne Tandem Linac Accelerator System (ATLAS) was commissioned and became available for production of rare isotopes. Currently, an electron cyclotron resonance ion source is used as a charge breeder for CARIBU beams. To further increase the intensity and improve the purity of neutron-rich ion beams accelerated by ATLAS, we are developing a high-efficiency charge breeder for CARIBU based on an electron beam ion source (EBIS). The CARIBU EBIS charge breeder will utilize the state-of-the-art EBIS technology recently developed at Brookhaven National Laboratory (BNL). The electron beam current density in the CARIBU EBIS trap will be significantly higher than that in existing operational charge-state breeders based on the EBIS concept. The design of the CARIBU EBIS charge breeder is nearly complete. Long-lead components of the EBIS such as a 6-T superconducting solenoid and an electron gun have been ordered with the delivery schedule in the fall of 2011. Measurements of expected breeding efficiency using the BNL Test EBIS have been performed using a Cs{sup +} surface ionization ion source for external injection in pulsed mode. In these experiments we have achieved {approx}70% injection/extraction efficiency and breeding efficiency into the most abundant charge state of {approx}17%.

  5. Development of electron beam ion source charge breeder for rare isotopes at Californium Rare Isotope Breeder Upgrade

    Energy Technology Data Exchange (ETDEWEB)

    Kondrashev S.; Alessi J.; Dickerson, C.; Levand, A.; Ostroumov, P.N.; Pardo, R.C.; Savard, G.; Vondrasek, R.; Beebe, E.; Pikin, A.; Kuznetsov, G.I.; Batazova, M.A.

    2012-02-03

    Recently, the Californium Rare Isotope Breeder Upgrade (CARIBU) to the Argonne Tandem Linac Accelerator System (ATLAS) was commissioned and became available for production of rare isotopes. Currently, an electron cyclotron resonance ion source is used as a charge breeder for CARIBU beams. To further increase the intensity and improve the purity of neutron-rich ion beams accelerated by ATLAS, we are developing a high-efficiency charge breeder for CARIBU based on an electron beam ion source (EBIS). The CARIBU EBIS charge breeder will utilize the state-of-the-art EBIS technology recently developed at Brookhaven National Laboratory (BNL). The electron beam current density in the CARIBU EBIS trap will be significantly higher than that in existing operational charge-state breeders based on the EBIS concept. The design of the CARIBU EBIS charge breeder is nearly complete. Long-lead components of the EBIS such as a 6-T superconducting solenoid and an electron gun have been ordered with the delivery schedule in the fall of 2011. Measurements of expected breeding efficiency using the BNL Test EBIS have been performed using a Cs{sup +} surface ionization ion source for external injection in pulsed mode. In these experiments we have achieved {approx}70% injection/extraction efficiency and breeding efficiency into the most abundant charge state of {approx}17%.

  6. Long-term effects of an intracavitary treatment with californium-252 on normal tissue. [Swine, /sup 226/Ra

    Energy Technology Data Exchange (ETDEWEB)

    Sullivan, M.F.; Beamer, J.L.; Mahony, T.D.; Cross, F.T.; Lund, J.E.; Endres, G.W.R.

    1976-01-01

    About one hundred fifty swine were exposed to either radium-226 or californium-252 sources in the uterine cervix to determine an RBE for both acute and long-term effects. That value for early changes in the tissues at risk in the treatment of cervical cancer was between 6.2 and 6.8. The incidence of complications increased with time after exposure, especially among animals treated with /sup 252/Cf. Analysis of rectal injury showed that ulceration occurred frequently within a year postexposure at doses between 1600 and 2400 rad calculated at 2 cm lateral to the source midline. Fat necrosis and smooth muscle atrophy, resulting in a local rectal stricture, were delayed changes observed in some animals. The lower ureter was the site for a greater frequency of complications than the GI tract. Ureteral stricture often occurred at doses of 1200 rad from /sup 252/Cf and 7000 rad from /sup 226/Ra. Observation of delayed effects in the uterine-cervix in animals held up to 4 years postexposure indicate that the RBE for /sup 252/Cf may be increased to a value as high as 18, while repair may have even decreased it to about 5.6 in the rectum. Fifty swine are still being observed for long-term effects after doses above 800 rad from /sup 252/Cf and 5000 rad from /sup 226/Ra.

  7. 38 CFR 17.255 - Applications for grants for programs which include construction projects.

    Science.gov (United States)

    2010-07-01

    ... specifications for the construction project, and where applicable, sufficient explanations of technical... for programs which include construction projects. 17.255 Section 17.255 Pensions, Bonuses, and... Applications for grants for programs which include construction projects. In addition to the documents...

  8. 40 CFR 1054.255 - What decisions may EPA make regarding my certificate of conformity?

    Science.gov (United States)

    2010-07-01

    ... CFR 1068.20). This includes a failure to provide reasonable assistance. (5) Produce engines or... my certificate of conformity? 1054.255 Section 1054.255 Protection of Environment ENVIRONMENTAL... regarding my certificate of conformity? (a) If we determine your application is complete and shows that...

  9. 40 CFR 1048.255 - What decisions may EPA make regarding my certificate of conformity?

    Science.gov (United States)

    2010-07-01

    ... (see 40 CFR 1068.20). This includes a failure to provide reasonable assistance. (5) Produce engines for... my certificate of conformity? 1048.255 Section 1048.255 Protection of Environment ENVIRONMENTAL... of conformity? (a) If we determine your application is complete and shows that the engine...

  10. 40 CFR 1060.255 - What decisions may EPA make regarding my certificate of conformity?

    Science.gov (United States)

    2010-07-01

    ... our presenting a warrant or court order (see 40 CFR 1068.20). This includes a failure to provide... my certificate of conformity? 1060.255 Section 1060.255 Protection of Environment ENVIRONMENTAL... regarding my certificate of conformity? (a) If we determine your application is complete and shows that...

  11. 40 CFR 1045.255 - What decisions may EPA make regarding my certificate of conformity?

    Science.gov (United States)

    2010-07-01

    .... (4) Deny us from completing authorized activities (see 40 CFR 1068.20). This includes a failure to... my certificate of conformity? 1045.255 Section 1045.255 Protection of Environment ENVIRONMENTAL... certificate of conformity? (a) If we determine your application is complete and shows that the engine...

  12. 40 CFR 1051.255 - What decisions may EPA make regarding my certificate of conformity?

    Science.gov (United States)

    2010-07-01

    ... completing authorized activities despite our presenting a warrant or court order (see 40 CFR 1068.20). This... my certificate of conformity? 1051.255 Section 1051.255 Protection of Environment ENVIRONMENTAL... conformity? (a) If we determine your application is complete and shows that the engine family meets all...

  13. 40 CFR 1039.255 - What decisions may EPA make regarding my certificate of conformity?

    Science.gov (United States)

    2010-07-01

    ... (see 40 CFR 1068.20). This includes a failure to provide reasonable assistance. (5) Produce engines for... my certificate of conformity? 1039.255 Section 1039.255 Protection of Environment ENVIRONMENTAL... certificate of conformity? (a) If we determine your application is complete and shows that the engine...

  14. 49 CFR 178.255-7 - Protection of valves and accessories.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 2 2010-10-01 2010-10-01 false Protection of valves and accessories. 178.255-7... FOR PACKAGINGS Specifications for Portable Tanks § 178.255-7 Protection of valves and accessories. (a) All valves, fittings, accessories, safety devices, gauging devices, and the like shall be...

  15. 20 CFR 255.9 - Individual enrolled under supplementary medical insurance plan.

    Science.gov (United States)

    2010-04-01

    ... XVIII of the Social Security Act (Supplementary Medical Insurance Benefits for the Aged and Disabled... medical insurance plan. 255.9 Section 255.9 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS... supplementary medical insurance plan. Where recovery of the overpayment is by setoff as provided for in §...

  16. 40 CFR 80.255 - Compliance plans and demonstration of commitment to produce low sulfur gasoline.

    Science.gov (United States)

    2010-07-01

    ... commitment to produce low sulfur gasoline. 80.255 Section 80.255 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Gasoline Sulfur... gasoline. The requirements of this section apply to any refiner approved for small refiner standards...

  17. Ab initio full-potential study of mechanical properties and magnetic phase stability of californium monopnictides (CfN and CfP)

    Science.gov (United States)

    Amari, S.; Bouhafs, B.

    2016-09-01

    Based on the first-principles methods, the structural, elastic, electronic, properties and magnetic ordering of californium monopnictides CfX (X = P) have been studied using the full-potential augmented plane wave plus local orbitals (FP-L/APW + lo) method within the framework of density functional theory (DFT). The electronic exchange correlation energy is described by generalized gradient approximation GGA and GGA+U (U is the Hubbard correction). The GGA+U method is applied to the rare-earth 5f states. We have calculated the lattice parameters, bulk modulii and the first pressure derivatives of the bulk modulii. The elastic properties of the studied compounds are only investigated in the most stable calculated phase. In order to gain further information, we have calculated Young's modulus, shear modulus, anisotropy factor and Kleinman parameter by the aid of the calculated elastic constants. The results mainly show that californium monopnictides CfX (X = P) have an antiferromagnetic spin ordering. Density of states (DOS) and charge densities for both compounds are also computed in the NaCl (B1) structure.

  18. 49 CFR 40.255 - What happens next after the alcohol confirmation test result?

    Science.gov (United States)

    2010-10-01

    ... FOR TRANSPORTATION WORKPLACE DRUG AND ALCOHOL TESTING PROGRAMS Alcohol Confirmation Tests § 40.255..., you must take the following steps with respect to the receipt and storage of alcohol test...

  19. Anatomy of a controversy: Application of the Langevin technique to the analysis of the Californium-252 Source-Driven Noise Analysis method for subcriticality determination

    International Nuclear Information System (INIS)

    The expressions for the power spectral density of the noise equivalent sources have been calculated explicitly for the (a) stochastic transport equation, (b) the one-speed transport equaton, (c) the one-speed P1 equations, (d) the one-speed diffusion equation and (e) the point kinetic equation. The stochastic nature of Fick's law in (d) has been emphasized. The Langevin technique has been applied at various levels of approximation to the interpretation of the Californium-252 Source-Driven Noise Analysis (CSDNA) experiment for determining the reactivity in subcritical media. The origin of the controversy surrounding this method has been explained. The foundations of the CSDNA method as a viable experimental technique to infer subcriticality from a measured ratio of power spectral densities of the outputs of two neutron detectors and a third external source detector has been examined by solving the one-speed stochastic diffusion equation for a point external Californium-252 source and two detectors in an infinite medium. The expression relating reactivity to the measured ratio of PSDs was found to depend implicitly on k itself. Through a numerical analysis fo this expression, the authors have demonstrated that for a colinear detector-source-detector configuration for neutron detectors far from the source, the expression for the subcritical multiplication factor becomes essentially insensitive to k, hence, demonstrating some possibility for the viability of this technique. However, under more realistic experimental conditions, i.e., for finite systems in which diffusion theroy is not applicable, the measurement of the subcritical multiplication factor from a single measured ratio of PSDs, without extensive transport calculations, remains doubtful

  20. Case analysis of 255 patients with candida albicans infection%255份白假丝酵母菌感染患者的病历分析

    Institute of Scientific and Technical Information of China (English)

    胡伟; 刘如品; 徐金霞; 田泾; 田锋奇

    2014-01-01

    目的:分析255份白假丝酵母菌感染患者的病历,为临床治疗提供参考。方法对255份白假丝酵母菌感染患者的病历进行分析,讨论患者一般资料、标本来源及药敏实验结果。结果白假丝酵母菌来源依次为痰液、分泌物、尿液、粪便、血液及其他;抗菌药物对白假丝酵母菌的敏感性依次为两性霉素、制霉菌素、氟胞嘧啶、酮康唑、咪康唑、氟康唑、伊曲康唑。结论白假丝酵母菌感染以老年患者居多,其中痰液检出率较高,白假丝酵母菌对两性霉素的敏感性高,值得临床推广应用。%Objective To analyze the case history of 255 patients with candida albicans infections, in order to provide references for clinical treatment. Methods The case history of 255 cases with candida albicans infection was analyzed. General information, specimen source and susceptibility testing results were discussed. Results The sources of candida albicans were sputum, secretion, urine, feces, blood, etc. Sensibility of antibacterial agents to candida albicans were amphotericin, nystatin, flucytosine, ketoconazole, miconazole, fluconazole and itraconazole. Conclusion The majority of the patients with candida albicans are the elderly. The sputum detection rate is high and the sensibility of candida albicans to amphotericin is high. It is worth popularization and application in clinic.

  1. Californium-252 neutron sources

    International Nuclear Information System (INIS)

    Major production programs for the Savannah River reactors and the High Flux Isotopes Reactor at Oak Ridge have made 252Cf one of the most available and, at the USAEC's sales price of $10/μg, one of the least-expensive isotopic neutron sources. Reactor production has totaled approximately 2 g, and, based on expected demand, an additional 10 g will be produced in the next decade. The approximately 800 mg chemically separated to date has been used to prepare over 600 neutron sources. Most, about 500, have been medical sources containing 1 to 5 μg of 252Cf plated in needles for experimental cancer therapy studies. The remainder have generally been point sources containing 10 μg to 12 mg of oxide for activation, well logging, or radiography uses. Bulk sources have also been supplied to the commercial encapsulators. The latest development has been the production of 252Cf cermet wire which can be cut into almost contamination-free lengths of the desired 252Cf content. Casks are available for transport of sources up to 50 mg. Subcritical assemblies have been developed to multiply the source neutrons by a factor of 10 to 40, and collimators and thermalizers have also been extensively developed to shape the neutron flux and energy distributions for special applications. (U.S.)

  2. 7 CFR 2.55 - Deputy Under Secretary for Food, Nutrition, and Consumer Services.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false Deputy Under Secretary for Food, Nutrition, and... the Under Secretary for Food, Nutrition, and Consumer Services § 2.55 Deputy Under Secretary for Food... made by the Under Secretary for Food, Nutrition, and Consumer Services to the Deputy Under...

  3. 24 CFR 960.255 - Self-sufficiency incentives-Disallowance of increase in annual income.

    Science.gov (United States)

    2010-04-01

    ... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false Self-sufficiency incentives... and Reexamination § 960.255 Self-sufficiency incentives—Disallowance of increase in annual income. (a... participation in any economic self-sufficiency or other job training program; or (iii) Whose annual...

  4. 42 CFR 440.255 - Limited services available to certain aliens.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Limited services available to certain aliens. 440... Limits Applicable to All Services § 440.255 Limited services available to certain aliens. (a) FFP for services. FFP is available for services provided to aliens described in this section which are necessary...

  5. 39 CFR 255.4 - Accessibility to electronic and information technology.

    Science.gov (United States)

    2010-07-01

    ... AND INFORMATION TECHNOLOGY § 255.4 Accessibility to electronic and information technology. (a) In... burden, that the electronic and information technology the agency procures allows— (1) Individuals with... 39 Postal Service 1 2010-07-01 2010-07-01 false Accessibility to electronic and...

  6. 47 CFR 25.255 - Procedures for resolving harmful interference related to operation of ancillary terrestrial...

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Procedures for resolving harmful interference...) COMMON CARRIER SERVICES SATELLITE COMMUNICATIONS Technical Standards § 25.255 Procedures for resolving harmful interference related to operation of ancillary terrestrial components operating in the...

  7. 78 FR 62329 - Special Local Regulation; Tennessee River, Miles 255.0 to 256.5, Florence, AL

    Science.gov (United States)

    2013-10-17

    ... Security FR Federal Register NPRM Notice of Proposed Rulemaking A. Regulatory History and Information The... CFR Part 100 RIN 1625-AA08 Special Local Regulation; Tennessee River, Miles 255.0 to 256.5, Florence... Special Local Regulation; Tennessee River, Miles 255.0 to 256.5, Florence, AL. (a) Location. The...

  8. Oxidation-reduction properties of americium, curium, berkelium, californium, einsteinium and fermium, and thermodynamic consequences for the 5f series

    International Nuclear Information System (INIS)

    The amalgamation of 5f elements from Am to Fm has been studied by using 241Am, 244Cm, 249Bk, 249Cf, 252Cf, 253Es, 254Es, 252Fm and 255Fm with two electrochemical methods, radiocoulometry and radiopolarography, perfectly adapted to investigate extremely diluted solutions when the concentration of electroactive species is as low as 10-16M. The theory of radiocoulometry has been developed in the general cases of reversible and irreversible electrode process. It has been used to interpret the experimental data on the kinetic curves of amalgamation, and to estimate the standard rate constant of the electrode process in complexing medium (citric). On the other hand the radiopolarographic method has been applied to study the mechanism of reduction at the dropping mercury electrode of cations M3+ in aqueous medium to the metal M with formation of amalgam. The results are exploited into two directions: 1- Acquisition of some data concerning the oxidation-reduction properties of elements from Am to Fm. Therefore the standard electrode E0 [M(III-0)] potentials for Bk, Cf and Es, and the standard electrode E0 [M(II-0)] potential for Fm are estimated and the relative stability of each oxidation state (from II to VII) of 5f elements is discussed; 2- Acquisition of unknown thermodynamic data on transcalifornium elements. Correlations between 4f and 5f elements are precised and some divergences appear for the second half of 4f and 5f series (i.e. for 65<=Z<=71 and 97<=Z<=103)

  9. Californium interrogation prompt neutron (CIPN) instrument for non-destructive assay of spent nuclear fuel-Design concept and experimental demonstration

    Science.gov (United States)

    Henzlova, D.; Menlove, H. O.; Rael, C. D.; Trellue, H. R.; Tobin, S. J.; Park, Se-Hwan; Oh, Jong-Myeong; Lee, Seung-Kyu; Ahn, Seong-Kyu; Kwon, In-Chan; Kim, Ho-Dong

    2016-01-01

    This paper presents results of the first experimental demonstration of the Californium Interrogation Prompt Neutron (CIPN) instrument developed within a multi-year effort launched by the Next Generation Safeguards Initiative Spent Fuel Project of the United States Department of Energy. The goals of this project focused on developing viable non-destructive assay techniques with capabilities to improve an independent verification of spent fuel assembly characteristics. For this purpose, the CIPN instrument combines active and passive neutron interrogation, along with passive gamma-ray measurements, to provide three independent observables. This paper describes the initial feasibility demonstration of the CIPN instrument, which involved measurements of four pressurized-water-reactor spent fuel assemblies with different levels of burnup and two initial enrichments. The measurements were performed at the Post-Irradiation Examination Facility at the Korea Atomic Energy Institute in the Republic of Korea. The key aim of the demonstration was to evaluate CIPN instrument performance under realistic deployment conditions, with the focus on a detailed assessment of systematic uncertainties that are best evaluated experimentally. The measurements revealed good positioning reproducibility, as well as a high degree of insensitivity of the CIPN instrument's response to irregularities in a radial burnup profile. Systematic uncertainty of individual CIPN instrument signals due to assembly rotation was found to be orientation in the instrument.

  10. Study on Thermomagnetic Treatment Fe-25.5Cr-12Co Permanent Magnetic Alloy

    Institute of Scientific and Technical Information of China (English)

    GAO Run-sheng; ZHEN Liang; SHAO Wen-zhu; SUN Xue-yin; ZHU Dan-yang; XU Ren-gen

    2004-01-01

    The magnetic properties and microstructure in a low cobalt Fe-25.5Cr-12Co alloy by different process of thermomagnetic treatment were investigated. It is found that magnetic properties are sensitive to parameters of thermomagnetic treatment process in magnetic field, including temperature, time and applied magnetic field. There are optimized isothermal aging temperature and time in different magnetic heat treatment conditions. High magnetic field strength could improve magnetic properties. Applied magnetic field has a great effect on microstructure of the Fe-25.5Cr-12Co alloy. The finer ferromagnetic α1 particles with suitable c/a ratio by high magnetic field magnetic heat treatment are attributed to improvement the magnetic properties.

  11. [Evaluation of 255 HIV/AIDS cases: Hacettepe cohort, Ankara, Turkey].

    Science.gov (United States)

    Çerçi, Pamir; İnkaya, Ahmet Çağkan; Alp, Şehnaz; Tümer, Aygen; Ünal, Serhat

    2016-01-01

    The first HIV/AIDS case has been reported in 1985 in Turkey, and since then 8238 cases have registered until June 2014 according to the records of Turkish Ministry of Health. The aim of this retrospective study was to evaluate the epidemiological data and clinical features of HIV/AIDS patients admitted to our center. A total of 255 HIV-infected patients admitted to our clinic between January 1986 and January 2013, whose data obtained from file records, were included in the study. Most of the patients were male (193/255, 75.6%) and Turkish citizens (216/255, 84.7%), with the mean age of 38.0 ± 11.6 (age range: 19-80) years. Approximately 25.4% (46/181) were university graduates. The most frequent route of transmission was through a heterosexual intercourse (161/255, 63.1%). In our study group, there were 34 men who had sex with men, and the majority of these cases (n= 26, 76.5%) were diagnosed in or after the year 2006, while 23.5% (n= 8) before 2006. This difference was found statistically significant (psexual intercourse in 21.3% of the cases. Initial CD4(+) T lymphocyte counts could be reached for 237 cases, and the median value was calculated as 260 (range: 3-1183) cells/mm(3). Among these patients, CD4(+) T cell count was below 200/mm3 in 40.1% (95/237), and above 500/mm3 in 22.8% (54/237). The mean CD4(+) lymphocyte count on first admission was 240/mm(3) for those admitted before the year 2006 (n= 107) and 375/mm3 for those admitted after 2006 (n= 130) (pdata from HIV/AIDS patients would be beneficial to determine and predict the complications of the disease. PMID:27058333

  12. Efficacy of comprehensive treatment on amblyopia in 255 children%综合治疗儿童弱视255例疗效观察

    Institute of Scientific and Technical Information of China (English)

    徐星慧; 张武锋

    2015-01-01

    Abstract•AlM:To study the efficacy of comprehensive treatment on amblyopia in children.•METHODS: A total of 255 cases 386 eyes diagnosed as amblyopia were given refractive errors correction, multi-media training system, coveting treatment, CAM treatment and red light stimulation. The relationship of therapeutic effect with age, type and degree of amblyopia was analyzed.•RESULTS: The total effective rate was 94%, and total cure rate was 71%. Mild amblyopia, 3 ~ 6 years group, ametropia amblyopia had the highest cure rate.•CONCLUSlON: Efficacy of comprehensive treatment on amblyopia is certain, which is relation with age, type and degree of amblyopia.%目的:探讨综合治疗各种类型儿童弱视的疗效。方法:对确诊为弱视的患儿255例386眼,采用戴镜矫正、遮盖疗法、增视能训练系统、CAM训练、红光刺激等综合治疗。并对弱视的年龄、类型及弱视程度与疗效关系进行分析。结果:弱视治疗总有效率为94%,总治愈率为71%。轻度弱视、3~6岁年龄段和屈光不正性弱视治愈率最高。结论:综合治疗法对儿童弱视疗效确切,年龄、弱视类型及弱视程度对疗效影响显著。

  13. Biological Efficiency of Californium-252 Source Evaluated by Comet Assay, Classical Cytogenetics and FISH in Human Lymphocytes Irradiated without and with BSH Pretreatment

    International Nuclear Information System (INIS)

    Biological effectiveness of californium-252 source was evaluated after irradiations in vitro of normal or pre-treated with compound enriched in B-10 ion cells. Peripheral blood lymphocytes were used as a model for human cells. DNA and chromosomal damage were studied to compare biological effectiveness of irradiation. Human blood samples or isolated lymphocytes were irradiated with the isotopic source of 252Cf, at the Faculty of Physics and Nuclear Techniques at the University of Mining and Metallurgy (both neutron source and samples were placed in ''infinite'' polyethylene block). Chemical pretreatment with Na210B12H11SH (BSH) was performed to introduce boron-10 ion into cells in order to check any enhancement effect due to the process of boron neutron capture. Single cell gel electrophoresis also known as the Comet assay was done to investigate the DNA damage. Classical cytogenetic analysis was applied to assess the frequencies of unstable aberrations (dicentrics, rings and a centric fragments). To evaluate the frequencies of stable aberrations the fluorescence in situ hybridisation (FISH) with probes for chromosomes 1, 4 (14.3% of the whole genome) was performed. Linear (or close to linear) increase with radiation dose were observed for the DNA damage and aberration frequencies in lymphocytes both untreated or pre-treated with BSH. Levels of translocations evaluated for the whole genome were comparable with the frequencies of dicentrics and rings. No significant differences were detected due to radiation dose in the frequencies of sister chromatid exchanges (SCE) detected in the second mitosis. No statistically significant differences were observed in various biological end-points between normal or boron pre-treated cells. (author)

  14. Bone mineral content measurement in 255 old patients with diabetes mellitus%老年糖尿病255例骨矿含量测定分析

    Institute of Scientific and Technical Information of China (English)

    蔡万春; 张凡; 李晓卫

    2001-01-01

    Objective To study the incidence of osteoporosis and influential factors of bone mineral content(BMC)in old diabetic patients. Methods BMC was measured in 255 old diabetic patients, using mode l SD-1000 single photoabsorptiometer. Results ①BMC was signific an tly higher in males than in females and decreased with increasing ages in males and femmales.②BMC decreased with lengthening medical history. ③In male diabeti c patients BMC correlated positively with the body mass indices (BMI), but there was no significant difference between the group with BMI 20-25 kg/m2 and the group with BMI over 25 kg/m2 in female patients. ④The incidence of osteoporo sis in this group was 38.04%(32.45% for male:46.15% for female) Conclusion Combined osteoporosis is a common chronic complication in old patients with diabetes mellitus.%目的 探讨老年糖尿病患者合并骨质疏松的发病率及骨矿含量的影响因素。  方法使用SD-1000型骨矿物仪测量255例老年糖尿病患者。结果 ①男性糖尿病患者BMC显著高于女性,男、女性BMC均随年龄的增高 而降低;②随着病程的增加BMC降低,呈显著负相关;③男性糖尿病患者BMC与体重指数(BMI)呈显著正相关,女性患者BMI20~25 kg/m2组与大 于25 kg/m2组之间BMC相差不显著;④本组糖尿病合并骨质疏松发病率为38.04%,其中男 性为32.45%,女性为46.15%。结论 糖尿病合并骨质疏松是糖尿病的一种常见慢性并发症。

  15. Forced unbinding of GPR17 ligands from wild type and R255I mutant receptor models through a computational approach

    Directory of Open Access Journals (Sweden)

    Fantucci Piercarlo

    2010-03-01

    Full Text Available Abstract Background GPR17 is a hybrid G-protein-coupled receptor (GPCR activated by two unrelated ligand families, extracellular nucleotides and cysteinyl-leukotrienes (cysteinyl-LTs, and involved in brain damage and repair. Its exploitment as a target for novel neuro-reparative strategies depends on the elucidation of the molecular determinants driving binding of purinergic and leukotrienic ligands. Here, we applied docking and molecular dynamics simulations (MD to analyse the binding and the forced unbinding of two GPR17 ligands (the endogenous purinergic agonist UDP and the leukotriene receptor antagonist pranlukast from both the wild-type (WT receptor and a mutant model, where a basic residue hypothesized to be crucial for nucleotide binding had been mutated (R255I to Ile. Results MD suggested that GPR17 nucleotide binding pocket is enclosed between the helical bundle and extracellular loop (EL 2. The driving interaction involves R255 and the UDP phosphate moiety. To support this hypothesis, steered MD experiments showed that the energy required to unbind UDP is higher for the WT receptor than for R255I. Three potential binding sites for pranlukast where instead found and analysed. In one of its preferential docking conformations, pranlukast tetrazole group is close to R255 and phenyl rings are placed into a subpocket highly conserved among GPCRs. Pulling forces developed to break polar and aromatic interactions of pranlukast were comparable. No differences between the WT receptor and the R255I receptor were found for the unbinding of pranlukast. Conclusions These data thus suggest that, in contrast to which has been hypothesized for nucleotides, the lack of the R255 residue doesn't affect the binding of pranlukast a crucial role for R255 in binding of nucleotides to GPR17. Aromatic interactions are instead likely to play a predominant role in the recognition of pranlukast, suggesting that two different binding subsites are present on GPR17.

  16. The disk-outflow system in the S255IR area of high mass star formation

    CERN Document Server

    Zinchenko, I; Su, Y -N; Salii, S V; Sobolev, A M; Zemlyanukha, P; Beuther, H; Ojha, D K; Samal, M R; Wang, Y

    2015-01-01

    We report the results of our observations of the S255IR area with the SMA at 1.3 mm in the very extended configuration and at 0.8 mm in the compact configuration as well as with the IRAM-30m at 0.8 mm. The best achieved angular resolution is about 0.4 arcsec. The dust continuum emission and several tens of molecular spectral lines are observed. The majority of the lines is detected only towards the S255IR-SMA1 clump, which represents a rotating structure (probably disk) around the young massive star. The achieved angular resolution is still insufficient for conclusions about Keplerian or non-Keplerian character of the rotation. The temperature of the molecular gas reaches 130-180 K. The size of the clump is about 500 AU. The clump is strongly fragmented as follows from the low beam filling factor. The mass of the hot gas is significantly lower than the mass of the central star. A strong DCN emission near the center of the hot core most probably indicates a presence of a relatively cold ($\\lesssim 80$ K) and r...

  17. Retrospective Evaluation Of MRI Findings Of Knee Joint In 255 Patients

    Directory of Open Access Journals (Sweden)

    Ahmet Mete

    2003-03-01

    Full Text Available Retrospective evaluation of knee MRI obtained from 255 cases and to demonstrate most common knee joint pathologies in our region.In our study knee joints of 255 cases who admitted to different clinics of our hospital with various complains of knee between October 1996 and December 1998 were examined in wide spectrum with MRI. Via 1.0 Tesla MRI device and special knee coil in sagittal, coronal and axial plains MRI images were obtained. The number of male and female patients were 173 and 82 and their ages were ranged between 14 and 70, and the mean age was 3413.The most common knee pathologies were intra-articular fluid (%58.04, medial (%46,66 and lateral (%12.55 meniscal injuries, anterior cruciate ligament injury (%17.25 and osteoarthritis (%14.9. The other important lesions were degeneration of medial and lateral meniscus, Baker’s cyst, bursitis, posterior cruciate ligament injury , medial and lateral collateral ligament injuries, synovial hypertrophy, chondromalasia of patella, and contusion.In our images of knee the most common lesions were injuries of meniscus and ligament. Because of being noninvasive technique for knee joint pathologies, capacity of multiplanar imaging, high contrast resolution and chance of detailed anatomic evaluation MR imaging was found to be most appropriate imaging technique for knee joint pathologies.

  18. Development of tilted fibre Bragg gratings using highly coherent 255 nm radiation

    Indian Academy of Sciences (India)

    O Prakash; J Kumar; R Mahakud; U Kumbhkar; S V Nakhe; S K Dixit

    2014-02-01

    This paper reports the study on development of tilted fibre Bragg gratings using highly coherent 255 nm radiation, obtained from the second harmonic generation (SHG) of copper vapour laser (CVL). The transmission and reflection spectra of the tilted fibre Bragg gratings (TFBG) were studied for the tilt angles of 0° (normal FBG), 1°, 3° and 4° between the fibre axis and the interference fringe plane. It was observed that as the angle of fibre axis and phase mask increased, the main Bragg peak shifted towards the higher wavelength and transmission dip decreased. The transmission dip of the cladding mode first increased and then decreased after reaching a maximum with the increase in the tilt angle.

  19. 每秒255 Terabit:新的光纤速度记录?

    Institute of Scientific and Technical Information of China (English)

    2014-01-01

    美国中佛罗里达大学和埃因霍温科技大学的研究人员表示他们已经开发出一种新的光纤介质,这种介质允许以高达255Tbps的速度发送和接收数据,这是目前速度的20倍。这种创新主要在于使用一组七个微结构光纤,而不是单根光纤。埃因霍温科技大学的教授Chigo Okonkwo表示,单根光纤的直径都小于200微米。

  20. 40 CFR 1068.255 - What are the provisions for exempting engines and fuel-system components for hardship for...

    Science.gov (United States)

    2010-07-01

    ... engines and fuel-system components for hardship for equipment manufacturers and secondary engine... § 1068.255 What are the provisions for exempting engines and fuel-system components for hardship for... is not available under this paragraph (a) if you manufacture the engine or fuel-system components...

  1. The functional Thr130Ile and Val255Met polymorphisms of the hepatocyte nuclear factor-4alpha (HNF4A)

    DEFF Research Database (Denmark)

    Ek, Jakob; Rose, Christian Schack; Jensen, Dorit Packert;

    2005-01-01

    HNF4A encodes an orphan nuclear receptor that plays crucial roles in regulating hepatic gluconeogenesis and insulin secretion. The aim of the present study was to examine two rare missense polymorphisms of HNF4A, Thr130Ile and Val255Met, for altered function and for association with type 2 diabetes...

  2. 40 CFR 266.255 - When is your LLMW no longer eligible for the storage and treatment conditional exemption?

    Science.gov (United States)

    2010-07-01

    ... disposal conditional exemption at § 266.305. Storage Unit Closure ...-Level Mixed Waste Storage, Treatment, Transportation and Disposal. Reentry into Rcra § 266.255 When is... date your waste is subject to hazardous waste regulation under the relevant sections of 40 CFR...

  3. Major complications after radiofrequency ablation for liver tumors: Analysis of 255 patients

    Institute of Scientific and Technical Information of China (English)

    Wen-Tao Kong; Wei-Wei Zhang; Yu-Dong Qiu; Tie Zhou; Jun-Lan Qiu; Wei Zhang; Yi-Tao Ding

    2009-01-01

    AIM: To investigate the major complications after radiofrequency ablation (RFA) for the treatment of liver tumors and analyze possible risk factors that precipitate these complications.METHODS: From March 2001 to April 2008, 255 patients with liver tumors (205 male, 50 female;age range, 18-89 years; mean age, 56.0 years) who received RFA were enrolled in this study. Of these patients, 212 had hepatocellular carcinoma, 39 had metastatic liver tumors and four had cholangiocellular carcinoma. One hundred and forty eight patients had a single tumor, and 107 had multiple tumors. Maximum diameter of the tumors ranged 1.3-20 cm (mean,5.1 cm). All patients were treated with a cooledtip perfusion electrode attached to a radiofrequency generator (Radionics, Burlington, MA, USA). RFA was performed via the percutaneous approach ( n = 257),laparoscopy ( n = 7), or open surgical treatment ( n = 86). The major complications related to RFA were recorded. The resultant data were analyzed to determine risk factors associated these complications.RESULTS: Among the 255 patients, 425 liver tumors were treated and 350 RFA sessions were performed.Thirty-seven (10%) major complications were observed which included 13 cases of liver failure, 10 cases of hydrothorax requiring drainage, three cases of tumor seeding, one case of upper gastrointestinal bleeding, one case of intrahepatic abscess, one case of bile duct injury, one case of cardiac arrest, and five cases of hyperglycemia. Seven patients had more than two complications. Liver failure was the most severe complication and was associated with the highest mortality. Eleven patients died due to worsening liver decompensation. Child-Pugh classification ( P = 0.001)and choice of approach ( P = 0.045) were related to post-treatment liver failure, whereas patient age,tumor size and number were not significant factors precipitating this complication.CONCLUSION: RFA can be accepted as a relatively safe procedure for the treatment of liver

  4. Californium Recovery from Palladium Wire

    Energy Technology Data Exchange (ETDEWEB)

    Burns, Jon D. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2014-08-01

    The recovery of 252Cf from palladium-252Cf cermet wires was investigated to determine the feasibility of implementing it into the cermet wire production operation at Oak Ridge National Laboratory’s Radiochemical Engineering Development Center. The dissolution of Pd wire in 8 M HNO3 and trace amounts of HCl was studied at both ambient and elevated temperatures. These studies showed that it took days to dissolve the wire at ambient temperature and only 2 hours at 60°C. Adjusting the ratio of the volume of solvent to the mass of the wire segment showed little change in the kinetics of dissolution, which ranged from 0.176 mL/mg down to 0.019 mL/mg. A successful chromatographic separation of 153Gd, a surrogate for 252Cf, from Pd was demonstrated using AG 50x8 cation exchange resin with a bed volume of 0.5 mL and an internal diameter of 0.8 cm.

  5. Sejong open cluster survey (SOS) - V. The active star forming region Sh 2-255 -- 257

    CERN Document Server

    Lim, Beomdu; Hur, Hyeonoh; Lee, Byeong-Cheol; Bessell, Michael S; Kim, Jinyoung S; Lee, Kang Hwan; Park, Byeong-Gon; Jeong, Gwanghui

    2015-01-01

    There is much observational evidence that active star formation is taking place in the HII regions Sh 2-255 -- 257. We present a photometric study of this star forming region (SFR) using imaging data obtained in passbands from the optical to the mid-infrared in order to study the star formation process. A total of 218 members were identified using various selection criteria based on their observational properties. The SFR is reddened by at least E(B-V) = 0.8 mag, and the reddening law toward the region is normal (R_V = 3.1). From the zero-age main sequence fitting method it is confirmed that the SFR is 2.1 +/- 0.3 kpc from the Sun. The median age of the identified members is estimated to be about 1.3 Myr from comparison of the Hertzsprung-Russell diagram (HRD) with stellar evolutionary models. The initial mass function (IMF) is derived from the HRD and the near-infrared (J, J-H) color-magnitude diagram. The slope of the IMF is about Gamma = -1.6 +/- 0.1, which is slightly steeper than that of the Salpeter/Kro...

  6. Luminosity functions of YSO clusters in Sh-2 255, W3 Main and NGC 7538 star forming regions

    Science.gov (United States)

    Ojha, Devendra; Tamura, Motohide

    We have conducted deep near-infrared surveys of the Sh-2 255, W3 Main and NGC 7538 massive star forming regions using simultaneous observations of the JHKs-band with the near-infrared camera SIRIUS on the UH 88-inch telescope and with SUBARU. The near-infrared surveys cover a total area of ~72 square arcmin of three regions with 10-sigma limiting magnitudes of ~19.5, 18.4 and 17.3 in J, H and Ks-band, respectively. Based on the color-color and color-magnitude diagrams and their clustering properties, the candidate young stellar objects are identified and their luminosity functions are constructed in Sh-2 255, W3 Main and NGC 7538. A large number of previously unreported red sources (H-K > 2) have also been detected around these regions. We argue that these red stars are most probably pre-main sequence stars with intrinsic color excesses. The detected young stellar objects show a clear clustering pattern in each region: the Class I-like sources are mostly clustered in molecular cloud region, while the Class II-like sources in or around more evolved optical HII regions. We find that the slopes of the Ks-band luminosity functions of Sh-2 255, W3 Main and NGC 7538 are lower than the typical values reported for the young embedded clusters and their stellar populations are primarily composed of low mass pre-main sequence stars. From the slopes of the Ks-band luminosity functions, we infer that Sh-2 255, W3 Main and NGC 7538 star forming regions are rather young (age <=1 Myr).

  7. Sejong Open Cluster Survey (SOS) - V. The Active Star Forming Region SH 2-255-257

    Science.gov (United States)

    Lim, Beomdu; Sung, Hwankyung; Hur, Hyeonoh; Lee, Byeong-Cheol; Bessell, Michael S.; Kim, Jinyoung S.; Lee, Kang Hwan; Park, Byeong-Gon; Jeong, Gwanghui

    2015-12-01

    There is much observational evidence that active star formation is taking place in the H II regions Sh 2-255-257. We present a photometric study of this star forming region (SFR) using imaging data obtained in passbands from the optical to the mid-infrared, in order to study the star formation process. A total of 218 members were identified using various selection criteria based on their observational properties. The SFR is reddened by at least E(B-V) = 0.8 mag, and the reddening law toward the region is normal (R_V = 3.1). From the zero-age main sequence fitting method it is confirmed that the SFR is 2.1 ± 0.3 kpc from the Sun. The median age of the identified members is estimated to be about 1.3 Myr from a comparison of the Hertzsprung-Russell diagram (HRD) with stellar evolutionary models. The initial mass function (IMF) is derived from the HRD and the near-infrared (J, J-H) color-magnitude diagram. The slope of the IMF is about Γ = -1.6 ± 0.1, which is slightly steeper than that of the Salpeter/Kroupa IMF. It implies that low-mass star formation is dominant in the SFR. The sum of the masses of all the identified members provides the lower limit of the cluster mass (169 M_{⊙}). We also analyzed the spectral energy distribution (SED) of pre-main sequence stars using the SED fitting tool of Robitaille et al., and confirm that there is a significant discrepancy between stellar mass and age obtained from two different methods based on the SED fitting tool and the HRD.

  8. Commission on the Advancement of Women and Minorities in Science, Engineering, and Technology Development Act. Public Law 105-255. 105th Congress.

    Science.gov (United States)

    Congress of the U.S., Washington, DC. House.

    This Public Law (PL-105-255) lays out the reasons for establishing the Commission; the duties of the Commission; membership, directorship, and powers of the commission; and expectations for the Commission's report. (WRM)

  9. Design of a homogeneous subcritical nuclear reactor based on thorium with a source of californium 252; Diseno de un reactor nuclear subcritico homogeneo a base de Torio con una fuente de Californio 252

    Energy Technology Data Exchange (ETDEWEB)

    Delgado H, C. E.; Vega C, H. R. [Universidad Autonoma de Zacatecas, Unidad Academica de Estudios Nucleares, Cipres No. 10, Fracc. La Penuela, 98068 Zacatecas, Zac. (Mexico); Sajo B, L., E-mail: ce_delgado89@hotmail.com [Universidad Simon Bolivar, Laboratorio de Fisica Nuclear, Apdo. 89000, 1080A Caracas (Venezuela, Bolivarian Republic of)

    2015-10-15

    Full text: One of the energy alternatives to fossil fuels which do not produce greenhouse gases is the nuclear energy. One of the drawbacks of this alternative is the generation of radioactive wastes of long half-life and its relation to the generation of nuclear materials to produce weapons of mass destruction. An option to these drawbacks of nuclear energy is to use Thorium as part of the nuclear fuel which it becomes in U{sup 233} when capturing neutrons, that is a fissile material. In this paper Monte Carlo methods were used to design a homogeneous subcritical reactor based on thorium. As neutron reflector graphite was used. The reactor core is homogeneous and is formed of 70% light water as moderator, 12% of enriched uranium UO{sub 2}(NO{sub 3}){sub 4} and 18% of thorium Th(NO{sub 3}){sub 4} as fuel. To start the nuclear fission chain reaction an isotopic source of californium 252 was used with an intensity of 4.6 x 10{sup 7} s{sup -1}. In the design the value of the effective multiplication factor, whose value turned out k{sub eff} <1 was calculated. Also, the neutron spectra at different distances from the source and the total fluence were calculated, as well as the values of the ambient dose equivalent in the periphery of the reactor. (Author)

  10. PRODUCT IRON-BEARING CONTROL TECHNOLOGY AND MEASURES FOR 25.5 MVA INDUSTRIAL SILICON FURNACE%25.5 MVA工业硅炉产品含铁量控制工艺及措施

    Institute of Scientific and Technical Information of China (English)

    赵兴凡; 周杰; 王子龙; 卢国洪

    2015-01-01

    In order to effectively control industrial silicon product iron-bearing, it analyzes and elaborates iron-bearing resource for 25.5 MVA industrial silicon furnace. It makes process treatment from raw materials, operation and products, obtaining the key factors affected the products’ quality. At the same time, it puts forward research area and prospect for future improvement on industrial silicon products.%为了有效控制工业硅产品的铁含量,分析和阐述了25.5 MVA工业硅炉产品中铁元素的来源,对其主要生产原料、生产操作工艺及产品进行了技术工艺处理,找出了影响产品质量的关键因素,同时也对未来工业硅产品质量技术的提升提出了一些研究方向和展望。

  11. Spectroscopy and single-particle structure of the odd- Z heavy elements {sup 255}Lr, {sup 251}Md and {sup 247}Es

    Energy Technology Data Exchange (ETDEWEB)

    Chatillon, A.; Theisen, C.; Bouchez, E.; Clement, E.; Dayras, R.; Goergen, A.; Korten, W.; Le Coz, Y.; Simenel, C.; Bender, M. [CEA Saclay, DSM/DAPNIA/SPhN, Gif-sur-Yvette Cedex (France); Greenlees, P.T.; Eeckhaudt, S.; Grahn, T.; Jones, P.; Julin, R.; Juutinen, S.; Kettunen, H.; Leino, M.; Perkowski, J.; Rahkila, P.; Saren, J.; Scholey, C.; Uusitalo, J. [University of Jyvaeskylae, Department of Physics, P.O. Box 35 (Finland); Auger, G.; Bouriquet, B.; Casandjian, J.M.; Cee, R.; France, G. de; Toureil, R. de; Rejmund, M.; Saint-Laurent, M.G.; Stodel, C.; Villari, A. [GANIL, Boulevard Henri Becquerel, B.P. 55027, Caen Cedex 5 (France); Bastin, J.E.; Herzberg, R.D.; Ikin, P.J.C.; Jones, G.D.; Pritchard, A. [University of Liverpool, Oliver Lodge Laboratory, Department of Physics, Liverpool (United Kingdom); Grevy, S. [LPC, CAEN Cedex (France); Hauschild, K.; Korichi, A.; Lopez-Martens, A.; Siem, S. [CSNSM, Orsay (France); Lukyanov, S.M.; Penionzhkevich, Yu.E.; Sobolev, Yu.G. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Bonche, P. [CEA Saclay, DSM/SPhT, Gif-sur-Yvette Cedex (France)

    2006-11-15

    The odd-Z isotope {sup 255}Lr, its daughter {sup 251}Md and grand-daughter {sup 247}Es were studied in two experiments performed at GANIL and the University of Jyvaeskylae. The {sup 255}Lr nuclei were produced using the cold fusion-evaporation reaction {sup 209}Bi({sup 48}Ca, 2n){sup 255}Lr at a bombarding energy of 217MeV. The single-particle structure and decay properties were investigated using {alpha}, {gamma} and electron spectroscopy. The ground-state spin and parity could be assigned for {sup 255}Lr (1/2{sup -}) and {sup 251}Md (7/2{sup -}). States corresponding to the 7/2{sup +}[633], 7/2{sup -}[514] and 1/2{sup -}[521] Nilsson orbitals were observed. Results are compared to experimental data obtained in neighbouring isotopes and to Hartree-Fock-Bogoliubov calculations using the Skyrme interaction SLy4 and a density-dependent pairing interaction. The position of the 1/2{sup -}[521] orbital from the spherical 2f{sub 5/2} shell is discussed. (orig.)

  12. 225-255-GHz InP DHBT Frequency Tripler MMIC Using Complementary Split-Ring Resonator

    Science.gov (United States)

    Li, Xiao; Zhang, Yong; Li, Oupeng; Sun, Yan; Lu, Haiyan; Cheng, Wei; Xu, Ruimin

    2016-10-01

    In this paper, a novel design of frequency tripler monolithic microwave integrated circuit (MMIC) using complementary split-ring resonator (CSRR) is proposed based on 0.5-μm InP DHBT process. The CSRR-loaded microstrip structure is integrated in the tripler as a part of impedance matching network to suppress the fundamental harmonic, and another frequency tripler based on conventional band-pass filter is presented for comparison. The frequency tripler based on CSRR-loaded microstrip generates an output power between -8 and -4 dBm from 228 to 255 GHz when the input power is 6 dBm. The suppression of fundamental harmonic is better than 20 dBc at 77-82 GHz input frequency within only 0.15 × 0.15 mm2 chip area of the CSRR structure on the ground layer. Compared with the frequency tripler based on band-pass filter, the tripler using CSRR-loaded microstrip obtains a similar suppression level of unwanted harmonics and higher conversion gain within a much smaller chip area. To our best knowledge, it is the first time that CSRR is used for harmonic suppression of frequency multiplier at such high frequency band.

  13. UV LED charge control of an electrically isolated proof mass in a Gravitational Reference Sensor configuration at 255 nm

    CERN Document Server

    Balakrishnan, Karthik; Alfauwaz, Abdul; Aljadaan, Ahmad; Almajeed, Mohammed; Alrufaydah, Muflih; Althubiti, Salman; Aljabreen, Homoud; Buchman, Sasha; Byer, Robert L; Conklin, John; DeBra, Daniel; Hanson, John; Hultgren, Eric; Saud, Turki Al; Shimizu, Seiya; Soulage, Michael; Zoellner, Andreas

    2012-01-01

    Precise control over the potential of an electrically isolated proof mass is necessary for the operation of devices such as a Gravitational Reference Sensor (GRS) and satellite missions such as LISA. We show that AlGaN UV LEDs operating at 255 nm are an effective substitute for Mercury vapor lamps used in previous missions because of their ability to withstand space qualification levels of vibration and thermal cycling. After 27 thermal and thermal vacuum cycles and 9 minutes of 14.07 g RMS vibration, there is less than 3% change in current draw, less than 15% change in optical power, and no change in spectral peak or FWHM (full width at half maximum). We also demonstrate UV LED stimulated photoemission from a wide variety of thin film carbide proof mass coating candidates (SiC, Mo2C, TaC, TiC, ZrC) that were applied using electron beam evaporation on an Aluminum 6061-T6 substrate. All tested carbide films have measured quantum efficiencies of 3.8-6.8*10^-7 and reflectivities of 0.11-0.15, which compare favor...

  14. UV LED charge control of an electrically isolated proof mass in a Gravitational Reference Sensor configuration at 255 nm

    Science.gov (United States)

    Balakrishnan, Karthik; Sun, Ke-Xun

    2012-07-01

    Precise control over the potential of an electrically isolated proof mass is necessary for the operation of devices such as a Gravitational Reference Sensor (GRS) and satellite missions such as LISA. We show that AlGaN UV LEDs operating at 255 nm are an effective substitute for Mercury vapor lamps used in previous missions because of their ability to withstand space qualification levels of vibration and thermal cycling. After 27 thermal and thermal vacuum cycles and 9 minutes of 14.07 g RMS vibration, there is less than 3% change in current draw, less than 15% change in optical power, and no change in spectral peak or FWHM (full width at half maximum). We also demonstrate UV LED stimulated photoemission from a wide variety of thin film carbide proof mass coating candidates (SiC, Mo2C, TaC, TiC, ZrC) that were applied using electron beam evaporation on an Aluminum 6061-T6 substrate. All tested carbide films have measured quantum efficiencies of 3.8-6.8*10^-7 and reflectivities of 0.11-0.15, which compare favorably with the properties of previously used gold films. We demonstrate the ability to control proof mass potential on an 89 mm diameter spherical proof mass over a 20 mm gap in a GRS-like configuration. Proof mass potential was measured via a non-contact DC probe, which would allow control without introducing dynamic forcing of the spacecraft. Finally we provide a look ahead to an upcoming technology demonstration mission of UV LEDs and future applications toward charge control of electrically isolated proof masses.

  15. Quasielastic pion scattering near the (3,3) resonance. [255 MeV, differential cross section ratio

    Energy Technology Data Exchange (ETDEWEB)

    Varghese, P.

    1978-12-01

    The quasielastic pion scattering process (..pi..,..pi..p), in which an energetic pion scatters off a target nucleus, knocking-out a bound proton, was studied to determine the role of recoil nucleon charge exchange in the mechanism of the process near the (3,3) free particle pion-nucleon resonance. Calculations, which incorporate the hypothesis of final state charge exchange of the outgoing nucleon, were performed to predict expectations for observing the process. Experimental measurements were made on /sup 27/Al and /sup 208/Pb, using 255-MeV ..pi../sup +/ and ..pi../sup -/ beams. The outgoing protons were observed in a counter telescope in singles and coincidence modes. Singles spectra were measured at proton angles theta/sub rho/ = 45, 55, 64, and 90/sup 0/ and cross sections were calculated as a function of the energy of the detected proton, for each of the targets. Values of the ratio of ..pi../sup +/ to ..pi../sup -/ cross sections were calculated for each of the angles of observation. The results obtained indicate that the singles spectra contain events from processes other than quasielastic scattering and that the quasielastic events cannot be easily disentangled from the large background due to such events. The study has thus established the inadequacy of observing quasielastic pion scattering in a single arm measurement. Coincidence measurements were made by observing the recoil protons in coincidence with the scattered pions, which were detected in a scintillator counter telescope. The ratio of ..pi../sup +/ to ..pi../sup -/ cross sections were obtained for each target for the angular settings (theta/sub rho/, theta/sub ..pi../) = (55, 50/sup 0/) and (64, 37.5/sup 0/). The measured values of 7.0 +- 0.7 for /sup 27/Al and 4.5 +- 0.5 for /sup 208/Pb are substantially below the impulse approximation no-charge-exchange limit of 9. The observed A dependence of this cross section ratio is in agreement with the predictions of the semiclassical charge exchange

  16. Inactivation of a 25.5 µm Enterococcus faecalis biofilm by a room-temperature, battery-operated, handheld air plasma jet

    Science.gov (United States)

    Pei, X.; Lu, X.; Liu, J.; Liu, D.; Yang, Y.; Ostrikov, K.; Chu, Paul K.; Pan, Y.

    2012-04-01

    Effective biofilm inactivation using a handheld, mobile plasma jet powered by a 12 V dc battery and operated in open air without any external gas supply is reported. This cold, room-temperature plasma is produced in self-repetitive nanosecond discharges with current pulses of ˜100 ns duration, current peak amplitude of ˜6 mA and repetition rate of ˜20 kHz. It is shown that the reactive plasma species penetrate to the bottom layer of a 25.5 µm-thick Enterococcus faecalis biofilm and produce a strong bactericidal effect. This is the thickest reported biofilm inactivated using room-temperature air plasmas.

  17. Tachyzoites of Toxoplasma gondii irradiated with 255 Gy induces decrease of cysts and cerebral lesions in mice challenged with cysts of ME-49

    International Nuclear Information System (INIS)

    Toxoplasmosis can cause ocular lesions in normal individuals and several diseases in foetus, HIV infection and transplants. Toxoplasma gondii has a complex life cycle, involving cats, as the definitive host, and warm blood species, as intermediated hosts. The infection occurs by ingestion of food and water contaminated with infected cat faeces, contaminated milk and cheese or raw and undercook meat of the intermediated hosts. To date, there is no commercial vaccine of use in humans. In this work, tachyzoites of T. gondii RH strain were irradiated with 255 Gy and inoculated in C57Bl/6j mice (3 doses, biweekly), after mice were challenged with 1, 5, 10, 20 and 25 cysts of ME-49 by oral gavage. The lesions and cysts in the brain were analyzed in all mice, after 4-week post infection. The mortality was 20% in control mice (ME-49 cysts only) and not one in immunized mice. The number of cysts was high in the control group, but low in immunized 255 Gy mice (n<100). Immunized mice showed less cerebral pathology and necrosis foci. Ionizing radiation is an important tool in the study toxoplasmosis and vaccine development. (author)

  18. A low power 2.5-5 GHz low-noise amplifier using 0.5-μm GaAs pHEMT technology

    International Nuclear Information System (INIS)

    A two-stage 2.5-5 GHz monolithic low-noise amplifier (LNA) has been fabricated using 0.5-μm enhanced mode AlGaAs/GaAs pHEMT technology. To achieve wide operation bandwidth and low noise figure, the proposed LNA uses a wideband matching network and a negative feedback technique. Measured results from 2.5 to 5 GHz demonstrate a minimum of 2.4-dB noise figure and 17-dB gain. The input and output return loss exceeded −10-dB across the band. The power consumption of this LNA is 33 mW. According to the author's knowledge, this is the lowest power consumption LNA fabricated in 0.5-μm AlGaAs/GaAs pHEMT with the comparable performance.

  19. A low power 2.5-5 GHz low-noise amplifier using 0.5-μm GaAs pHEMT technology

    Institute of Scientific and Technical Information of China (English)

    Peng Yangyang; Lu Kejie; Sui Wenquan

    2012-01-01

    A two-stage 2.5-5 GHz monolithic low-noise amplifier (LNA) has been fabricated using 0.5-μm enhanced mode AlGaAs/GaAs pHEMT technology.To achieve wide operation bandwidth and low noise figure,the proposed LNA uses a wideband matching network and a negative feedback technique.Measured results from 2.5 to 5 GHz demonstrate a minimum of 2.4-dB noise figure and 17-dB gain.The input and output return loss exceeded-10-dB across the band.The Power consumption of this LNA is 33 mW.According to the author's knowledge,this is the lowest power consumption LNA fabricated in 0.5-μm A1GaAs/GaAs pHEMT with the comparable performance.

  20. Dosimetry for small fields in stereotactic radiosurgery using gafchromic MD-V2-55 film, TLD-100 and alanine dosimeters.

    Directory of Open Access Journals (Sweden)

    Guerda Massillon-J L

    Full Text Available This work investigated the suitability of passive dosimeters for reference dosimetry in small fields with acceptable accuracy. Absorbed dose to water rate was determined in nine small radiation fields with diameters between 4 and 35 mm in a Leksell Gamma Knife (LGK and a modified linear accelerator (linac for stereotactic radiosurgery treatments. Measurements were made using Gafchromic film (MD-V2-55, alanine and thermoluminescent (TLD-100 dosimeters and compared with conventional dosimetry systems. Detectors were calibrated in terms of absorbed dose to water in (60Co gamma-ray and 6 MV x-ray reference (10×10 cm(2 fields using an ionization chamber calibrated at a standards laboratory. Absorbed dose to water rate computed with MD-V2-55 was higher than that obtained with the others dosimeters, possibly due to a smaller volume averaging effect. Ratio between the dose-rates determined with each dosimeter and those obtained with the film was evaluated for both treatment modalities. For the LGK, the ratio decreased as the dosimeter size increased and remained constant for collimator diameters larger than 8 mm. The same behaviour was observed for the linac and the ratio increased with field size, independent of the dosimeter used. These behaviours could be explained as an averaging volume effect due to dose gradient and lack of electronic equilibrium. Evaluation of the output factors for the LGK collimators indicated that, even when agreement was observed between Monte Carlo simulation and measurements with different dosimeters, this does not warrant that the absorbed dose to water rate in the field was properly known and thus, investigation of the reference dosimetry should be an important issue. These results indicated that alanine dosimeter provides a high degree of accuracy but cannot be used in fields smaller than 20 mm diameter. Gafchromic film can be considered as a suitable methodology for reference dosimetry. TLD dosimeters are not

  1. Efficient program for decoding the /255, 223/ Reed-Solomon code over GF/2 to the 8th/ with both errors and erasures, using transform decoding. [FFT-like algorithm

    Science.gov (United States)

    Miller, R. L.; Truong, T. K.; Reed, I. S.

    1980-01-01

    The paper deals with a method developed for decoding a (255, 223) Reed-Solomon code over GF(2 to the 8th) with both errors and erasures. The matrix of decoding times for correcting errors and erasures of the code using a simplified decoder is presented. It is shown that the algorithm proposed is faster by a factor of from three to seven.

  2. Tachyzoites of Toxoplasma gondii irradiated with 255 Gy induces decrease of cysts and cerebral lesions in mice challenged with cysts of ME-49; Taquizoitos de Toxoplasma gondii irradiados com 255 Gy induzem diminuicao de cistos e lesoes cerebrais em camundongos desafiados com cistos da cepa ME-49

    Energy Technology Data Exchange (ETDEWEB)

    Hiramoto, Roberto Mitsuyoshi; Galisteo Juniorm Andres Jimenez; Nascimento, Nanci do; Andrade Junior, Heitor Franco de [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Lab. de Biologia Molecular]. E-mail: rmhiramoto@bol.com.br; hfandrad@usp.br

    2002-07-01

    Toxoplasmosis can cause ocular lesions in normal individuals and several diseases in foetus, HIV infection and transplants. Toxoplasma gondii has a complex life cycle, involving cats, as the definitive host, and warm blood species, as intermediated hosts. The infection occurs by ingestion of food and water contaminated with infected cat faeces, contaminated milk and cheese or raw and undercook meat of the intermediated hosts. To date, there is no commercial vaccine of use in humans. In this work, tachyzoites of T. gondii RH strain were irradiated with 255 Gy and inoculated in C57Bl/6j mice (3 doses, biweekly), after mice were challenged with 1, 5, 10, 20 and 25 cysts of ME-49 by oral gavage. The lesions and cysts in the brain were analyzed in all mice, after 4-week post infection. The mortality was 20% in control mice (ME-49 cysts only) and not one in immunized mice. The number of cysts was high in the control group, but low in immunized 255 Gy mice (n<100). Immunized mice showed less cerebral pathology and necrosis foci. Ionizing radiation is an important tool in the study toxoplasmosis and vaccine development. (author)

  3. Intermetallic Reactions during the Solid-Liquid Interdiffusion Bonding of Bi2Te2.55Se0.45 Thermoelectric Material with Cu Electrodes Using a Sn Interlayer

    Directory of Open Access Journals (Sweden)

    Chien-Hsun Chuang

    2016-04-01

    Full Text Available The intermetallic compounds formed during the diffusion soldering of a Bi2Te2.55Se0.45 thermoelectric material with a Cu electrode are investigated. For this bonding process, Bi2Te2.55Se0.45 was pre-coated with a 1 μm Sn thin film on the thermoelectric element and pre-heated at 250 °C for 3 min before being electroplated with a Ni barrier layer and a Ag reaction layer. The pre-treated thermoelectric element was bonded with a Ag-coated Cu electrode using a 4 μm Sn interlayer at temperatures between 250 and 325 °C. The results indicated that a multi-layer of Bi–Te–Se/Sn–Te–Se–Bi/Ni3Sn4 phases formed at the Bi2Te2.55Se0.45/Ni interface, ensuring sound cohesion between the Bi2Te2.55Se0.45 thermoelectric material and Ni barrier. The molten Sn interlayer reacted rapidly with both Ag reaction layers to form an Ag3Sn intermetallic layer until it was completely exhausted and the Ag/Sn/Ag sandwich transformed into a Ag/Ag3Sn/Ag joint. Satisfactory shear strengths ranging from 19.3 and 21.8 MPa were achieved in Bi2Te2.55Se0.45/Cu joints bonded at 250 to 300 °C for 5 to 30 min, dropping to values of about 11 MPa for 60 min, bonding at 275 and 300 °C. In addition, poor strengths of about 7 MPa resulted from bonding at a higher temperature of 325 °C for 5 to 60 min.

  4. Self-Expanding Metal Stenting for Palliation of Patients with Malignant Colonic Obstruction: Effectiveness and Efficacy on 255 Patients with 12-Month's Follow-up

    Science.gov (United States)

    Meisner, Søren; González-Huix, Ferran; Vandervoort, Jo G.; Repici, Alessandro; Xinopoulos, Dimitrios; Grund, Karl E.; Goldberg, Paul; Registry Group, The WallFlex Colonic

    2012-01-01

    Background. Self-expanding metal stents can alleviate malignant colonic obstruction in incurable patients and avoid palliative stoma surgery. Objective. Evaluate stent effectiveness and safety on palliation of patients with malignant colorectal strictures. Design. Two prospective, one Spanish and one global, multicenter studies. Settings. 39 centers (22 academic, 17 community hospitals) from 13 countries. Patients. A total of 257 patients were enrolled, and 255 patients were treated with a WallFlex uncovered enteral colonic stent. Follow-up was up to 12 months or until death or retreatment. Interventions(s). Self-expanding metal stent placement. Main Outcome Measures. Procedural success, clinical success, and safety. Results. Procedural success was 98.4% (251). Clinical success rates were 87.8% at 30 days, 89.7% at 3 months, 92.8% at 6 months, and 96% at 12 months. Overall perforation rate was 5.1%. Overall migration rate was 5.5%. Overall death rate during follow-up was 48.6% (124), with 67.7% of deaths related to the patient's colorectal cancer, unrelated in 32.3%. Only 2 deaths were related to the stent or procedure. Limitations. No control group. Conclusions. The primary palliative option for patients with malignant colonic obstruction should be self-expanding metal stent placement due to high rates of technical success and efficacy in symptom palliation and few complications. PMID:22761609

  5. Self-Expanding Metal Stenting for Palliation of Patients with Malignant Colonic Obstruction: Effectiveness and Efficacy on 255 Patients with 12-Month's Follow-up

    Directory of Open Access Journals (Sweden)

    Søren Meisner

    2012-01-01

    Full Text Available Background. Self-expanding metal stents can alleviate malignant colonic obstruction in incurable patients and avoid palliative stoma surgery. Objective. Evaluate stent effectiveness and safety on palliation of patients with malignant colorectal strictures. Design. Two prospective, one Spanish and one global, multicenter studies. Settings. 39 centers (22 academic, 17 community hospitals from 13 countries. Patients. A total of 257 patients were enrolled, and 255 patients were treated with a WallFlex uncovered enteral colonic stent. Follow-up was up to 12 months or until death or retreatment. Interventions(s. Self-expanding metal stent placement. Main Outcome Measures. Procedural success, clinical success, and safety. Results. Procedural success was 98.4% (251. Clinical success rates were 87.8% at 30 days, 89.7% at 3 months, 92.8% at 6 months, and 96% at 12 months. Overall perforation rate was 5.1%. Overall migration rate was 5.5%. Overall death rate during follow-up was 48.6% (124, with 67.7% of deaths related to the patient’s colorectal cancer, unrelated in 32.3%. Only 2 deaths were related to the stent or procedure. Limitations. No control group. Conclusions. The primary palliative option for patients with malignant colonic obstruction should be self-expanding metal stent placement due to high rates of technical success and efficacy in symptom palliation and few complications.

  6. HPV Prevalence and Prognostic Value in a Prospective Cohort of 255 Patients with Locally Advanced HNSCC: A Single-Centre Experience

    Directory of Open Access Journals (Sweden)

    E. Thibaudeau

    2013-01-01

    Full Text Available Background. HPV is a positive prognostic factor in HNSCC. We studied the prevalence and prognostic impact of HPV on survival parameters and treatment toxicity in patients with locally advanced HNSCC treated with concomitant chemoradiation therapy. Methods. Data on efficacy and toxicity were available for 560 patients. HPV was detected by PCR. Analysis was performed using Kaplan-Meier survival curves, Fisher’s test for categorical data, and log-rank statistics for failure times. Results. Median follow-up was 4.7 years. DNA extraction was successful in 255 cases. HPV prevalence was 68.6%, and 53.3% for HPV 16. For HPV+ and HPV−, median LRC was 8.9 and 2.2 years (P=0.0002, median DFS was 8.9 and 2.1 years (P=0.0014, and median OS was 8.9 and 3.1 years (P=0.0002. Survival was different based on HPV genotype, stage, treatment period, and chemotherapy regimen. COX adjusted analysis for T, N, age, and treatment remained significant (P=0.004. Conclusions. Oropharyngeal cancer is increasingly linked to HPV. This study confirms that HPV status is associated with improved prognosis among H&N cancer patients receiving CRT and should be a stratification factor for clinical trials including H&N cases. Toxicity of CRT is not modified for the HPV population.

  7. Predictions on the alpha decay half lives of superheavy nuclei with Z = 113 in the range 255 ≤ A ≤ 314

    Science.gov (United States)

    Santhosh, K. P.; Augustine, A.; Nithya, C.; Priyanka, B.

    2016-07-01

    An intense study of the alpha decay properties of the isotopes on superheavy element with Z = 113 has been performed within the Coulomb and proximity potential model for deformed nuclei (CPPMDN) within the wide range 255 ≤ A ≤ 314. The predicted alpha decay half lives of 278113 and 282113 and the alpha half lives of their decay products are in good agreement with the experimental data. 6α chains and 4α chains predicted respectively for 278113 and 282113 are in agreement with the experimental observation. Our study shows that the isotopes in the mass range 278 ≤ A ≤ 286 will survive fission and can be synthesized and detected in the laboratory via alpha decay. In our study, we have predicted 6α chains from 279113, 4α chains from 286113, 3α chains from 280,281,283113, 2α chains from 284113 and 1α chain from 285113. We hope that these predictions will be a guideline for future experimental investigations.

  8. Analiza korelacionih osobina pseudoslučajnih sekvenci dužine 255 za zaštitu upravljačkog signala bespilotne letelice / Analysis of correlation properties of pseudorandom sequences of length 255 for the UAV control signal protection

    Directory of Open Access Journals (Sweden)

    Vladimir D. Orlić

    2010-04-01

    Full Text Available Tehnike prenosa signala u proširenom spektru sa direktnom sekvencom predstavlja efikasan metod zaštite upravljačkog signala bespilotne letelice (BL. Zaštita signala se ostvaruje primenom pseudoslučajnih (PS sekvenci u predajniku, koje su poznate prijemniku, ali ne i neovlašćenom korisniku. Da bi se ostvario pouzdan prenos signala, PS sekvence treba da imaju dobre autokorelacione osobine. Ukoliko je prenos signala realizovan primenom nekoliko PS sekvenci, tada su od velike važnosti i njihove međukorelacione karakteristike. U radu su analizirane autokorelacione i međukorelacione osobine PS sekvenci dužine 255. Razmatrane su tri najčešće korišćene klase PS sekvenci: linearne sekvence maksimalne dužine, Goldove sekvence i Kasamijeve sekvence. Predložen je optimalan skup PS sekvenci za zaštitu upravljačkog signala BL. / The Direct Sequence Spread Spectrum technique represents an effective method for unmanned aerial vehicle (UAV control signal protection. Signal protection is obtained by applying pseudorandom (PR sequences within a transmitter, known by a receiver, but unknown to an unauthorized user. In order to achieve reliable signal transmission, PR sequences ought to have good autocorrelation properties. If the signal transmission is realized by using several PR sequences, their crosscorrelation properties are of high importance as well. In this paper autocorrelation and crosscorrelation properties of PR sequences of length 255 are analyzed. Three most frequently used classes of PR sequences: linear maximum length, Gold and Kasami sequences are considered. An optimal set of PR sequences for UAV control signal protection is recommended.

  9. 255Gy irradiated tachyzoites of Toxoplasma gondii induce intestinal immune response in C57BL/6J immunized by oral route

    Energy Technology Data Exchange (ETDEWEB)

    Galisteo Junior, Andres Jimenez; Alves, Janaina Baptista [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil). Lab. de Biologia Molecular]. E-mail: galisteo@usp.br; Hiramoto, Roberto Mitsuyoshi [Instituto Adolfo Lutz, Sao Paulo, SP (Brazil). Secao de Parasitoses Sistemicas]. E-mail: hiramoto@usp.br; Carmo, Claudia Villano do; Andrade Junior, Heitor Franco de [Instituto de Medicina Tropical de Sao Paulo, Sao Paulo, SP (Brazil). Lab. de Protozoologia]. E-mail: hfandrad@usp.br

    2005-07-01

    Toxoplasmosis, a prevalent widespread infection in man and animals, occurs mainly through ingestion of water and food contaminated with oocyst from cat feces, causing usually benign disease in humans, except in intrauterine fetal infection or in immunodeficient patients. We study the oral route for the development of a vaccine for toxoplasmosis, using parasites irradiated with 60 Cobalt, as an alternative for vaccine development to this worldwide parasitic infection. We evaluated the development of immunity at serum or mucosal levels, and their efficiency in protect the mice against challenge with oral cysts of the ME-49 strain. C57Bl/6j isogenic mice were immunized by oral route with 10{sup 7} 255 Gy irradiated tachyzoites from RH strain, at several protocols using milk as anti-peptic adjuvant and alum hydroxide as antacid. The preparations of irradiated tachyzoites induced production of serum IgG and IgA in immunized mice, as determined by ELISA, with IgG2a as the dominant subclass, similar to chronic infection. Their use with adjuvant allowed the excretion of significant amounts of IgA in stools also IgG, despite a lesser extent. All oral preparations induced some quantitative protection against challenge, which was similar to the parenteral route only isolated alum hydroxide was used as adjuvant. All these data support the possibility of the development of an oral vaccine against toxoplasmosis, using irradiated tachyzoites, which would be possible tool in near future for use in field baits, for immunizing either domestic or wild felids. (author)

  10. Rotational properties of the odd- Z transfermium nucleus 255Lr by a particle-number-conserving method in the cranked shell model

    Science.gov (United States)

    Li, Yu-Chun; He, Xiao-Tao

    2016-07-01

    Experimentally observed ground state band based on the 1/2-[521] Nilsson state and the first exited band based on the 7/2-[514] Nilsson state of the odd- Z nucleus 255Lr are studied by the cranked shell model (CSM) with the paring correlations treated by the particle-number-conserving (PNC) method. This is the first time the detailed theoretical investigations are performed on these rotational bands. Both experimental kinematic and dynamic moments of inertia ( J (1) and J (2)) versus rotational frequency are reproduced quite well by the PNC-CSM calculations. By comparing the theoretical kinematic moment of inertia J (1) with the experimental ones extracted from different spin assignments, the spin 17/2- → 13/2- is assigned to the lowest-lying 196.6(5) keV transition of the 1/2-[521] band, and 15/2- → 11/2- to the 189(1) keV transition of the 7/2-[514] band, respectively. The proton N = 7 major shell is included in the calculations. The intruder of the high- j low-Ω 1 j 15/2 (1/2-[770]) orbital at the high spin leads to band-crossings at ħω ≈ 0.20 ( ħω ≈ 0.25) MeV for the 7/2-[514] α = -1/2 ( α = +1/2) band, and at ħω ≈ 0.175 MeV for the 1/2-[521] α = -1/2 band, respectively. Further investigations show that the band-crossing frequencies are quadrupole deformation dependent.

  11. Construction of two YAC contigs in human xp11.23-p11.22, one encompassing the loci OATL1, GATA, TFE3, and SYP, the other linking DXS255 to DXS146

    Energy Technology Data Exchange (ETDEWEB)

    Fisher, S.E.; Hatchwell, E.; Chand, A.; Ockenden, N.; Craig, I.W. [Univ. of Oxford, Oxford (United Kingdom)] [and others

    1995-09-20

    We have constructed two YAC contigs in the Xp11.23-p11.22 interval of the human X chromosome, a region that was previously poorly characterized. One contig, of at least 1.4 Mb, links the pseudogene OATL1 to the genes GATA1, TFE3, and SYP and also contains loci implicated in Wiskott-Aldrich syndrome and synovial sarcoma. A second contig, mapping proximal to the first, is estimated to be over 2.1 Mb and links the hypervariable locus DXS255 to DXS146, and also contains a chloride channel gene that is responsible for hereditary nephrolithiasis. We have used plasmid rescue, inverse PCR, and Alu-PCR to generate 20 novel markers from this region, 1 of which is polymorphic, and have positioned these relative to one another on the basis of YAC analysis. The order of previously known markers within our contigs, Xpter-OATL1-GATA-TFE3-SYP-DXS255-DXS146-Xcen, agrees with genomic pulsed-field maps of the region. In addition, we have constructed a rare-cutter restriction map for a 710-kb region of the DXS255-DXS146 contig and have identified three CpG islands. These contigs and new markers will provide a useful resource for more detailed analysis of Xp11.23-p11.22, a region implicated in several genetic diseases. 32 refs., 2 figs., 2 tabs.

  12. Viral etiology in children with acute lower respiratory tract infections plus platelet disorders in Changsha, China: an analysis of 255 cases%255例急性下呼吸道感染并血小板异常患儿病毒病原学分析

    Institute of Scientific and Technical Information of China (English)

    刘华; 贺湘玲; 张兵; 肖霓光; 游亚兰; 段招军

    2014-01-01

    目的 了解住院患儿急性下呼吸道感染(ALRTI)并血小板异常的病毒病原学情况.方法 收集2010年3月至2011年2月255例血小板异常及同期442例血小板正常的ALRTI住院患儿鼻咽抽吸物样本,采用RT-PCR或PCR方法进行14种病毒检测.结果 255例血小板异常并ALRTI患儿中,血小板增多253例(99.2%),血小板减少2例(0.8%).血小板异常组中检出至少有1种病毒感染173例(67.8%),其中,人鼻病毒(HRV)检出率最高,其次是副流感病毒3(PIV3)和呼吸道合胞病毒(RSV).与血小板正常组相比较,血小板异常组PIV3检出率显著增高(P<0.05),而流感病毒B(IFVB)检出率则显著降低(P<0.05).血小板异常组和血小板正常组的年龄分布差异有统计学意义(P<0.01),其中1岁以下年龄段血小板异常最显著(P<0.O1).结论 ALRTI时易引起血小板增多,尤其是PIV3感染者,而IFVB感染则不易引起血小板的变化.小于1岁的ALRTI住院患儿更易出现血小板异常.

  13. Photosynthetic fractionation of 13C and concentrations of dissolved CO2 in the central equatorial Pacific during the last 255,000 years

    Science.gov (United States)

    Jasper, J. P.; Hayes, J. M.; Mix, A. C.; Prahl, F. G.

    1994-01-01

    Carbon isotopically based estimates of CO2 levels have been generated from a record of the photosynthetic fractionation of 13C [is equivalent to epsilon(p)] in a central equatorial Pacific sediment core that spans the last approximately 255 ka. Contents of 13C in phytoplanktonic biomass were determined by analysis of C37 alkadienones. These compounds are exclusive products of Prymnesiophyte algae which at present grow most abundantly at depths of 70-90 m in the central equatorial Pacific. A record of the isotopic composition of dissolved CO2 was constructed from isotopic analyses of the planktonic foraminifera Neogloboquadrina dutertrei, which calcifies at 70-90 m in the same region. Values of epsilon(p), derived by comparison of the organic and inorganic delta values, were transformed to yield concentrations of dissolved CO2 [is equivalent to c(e)] based on a new, site-specific calibration of the relationship between epsilon(p) and c(e). The calibration was based on reassessment of existing epsilon(p) versus c(e) data, which support a physiologically based model in which epsilon(p) is inversely related to c(e). Values of PCO2, the partial pressure of CO2 that would be in equilibrium with the estimated concentrations of dissolved CO2, were calculated using Henry's law and the temperature determined from the alkenone-unsaturation index U(K/37). Uncertainties in these values arise mainly from uncertainties about the appropriateness (particularly over time) of the site-specific relationship between epsilon(p) and 1/c(e). These are discussed in detail and it is concluded that the observed record of epsilon(p) most probably reflects significant variations in delta pCO2, the ocean-atmosphere disequilibrium, which appears to have ranged from approximately 110 microatmospheres during glacial intervals (ocean > atmosphere) to approximately 60 microatmospheres during interglacials. Fluxes of CO2 to the atmosphere would thus have been significantly larger during glacial

  14. The Exiguobacterium sibiricum 255-15 GtfC Enzyme Represents a Novel Glycoside Hydrolase 70 Subfamily of 4,6-α-Glucanotransferase Enzymes.

    Science.gov (United States)

    Gangoiti, Joana; Pijning, Tjaard; Dijkhuizen, Lubbert

    2015-11-20

    The glycoside hydrolase 70 (GH70) family originally was established for glucansucrase enzymes found solely in lactic acid bacteria synthesizing α-glucan polysaccharides from sucrose (e.g., GtfA). In recent years, we have characterized GtfB and related Lactobacillus enzymes as 4,6-α-glucanotransferase enzymes. These GtfB-type enzymes constitute the first GH70 subfamily of enzymes that are unable to act on sucrose as a substrate but are active with maltodextrins and starch, cleave α1→4 linkages, and synthesize linear α1→6-glucan chains. The GtfB disproportionating type of activity results in the conversion of malto-oligosaccharides into isomalto/malto-polysaccharides with a relatively high percentage of α1→6 linkages. This paper reports the identification of the members of a second GH70 subfamily (designated GtfC enzymes) and the characterization of the Exiguobacterium sibiricum 255-15 GtfC enzyme, which is also inactive with sucrose and displays 4,6-α-glucanotransferase activity with malto-oligosaccharides. GtfC differs from GtfB in synthesizing isomalto/malto-oligosaccharides. Biochemically, the GtfB- and GtfC-type enzymes are related, but phylogenetically, they clearly constitute different GH70 subfamilies, displaying only 30% sequence identity. Whereas the GtfB-type enzyme largely has the same domain order as glucansucrases (with α-amylase domains A, B, and C plus domains IV and V), this GtfC-type enzyme differs in the order of these domains and completely lacks domain V. In GtfC, the sequence of conserved regions I to IV of clan GH-H is identical to that in GH13 (I-II-III-IV) but different from that in GH70 (II-III-IV-I because of a circular permutation of the (β/α)8 barrel. The GtfC 4,6-α-glucanotransferase enzymes thus represent structurally and functionally very interesting evolutionary intermediates between α-amylase and glucansucrase enzymes.

  15. Ni50.5Mn24Ga25.5取向晶体相变应变性能的研究%The property of transformation strain in the textured Ni50.5 Mn24 Ga25.5 alloy

    Institute of Scientific and Technical Information of China (English)

    梁婷; 蒋成保; 徐惠彬

    2005-01-01

    采用区熔法制备了Ni50.5Mn24Ga25.5取向晶体,在底部、中部和顶部各切取一块样品进行相变应变测试.在中部样品中获得了高达1.4%的相变应变,应变随加热冷却循环次数的增加而逐步降低,第9次和第10次相变时应变为0.8%.在底部和顶部样品中,降温过程的应变随温度的变化呈现先收缩后膨胀或先膨胀后收缩的现象,我们认为这是由于样品中高度择优取向的马氏体变体竞争的结果所致.

  16. Ni51 Mn25.5 Ga23.5 单晶大的自发相变应变和磁感生应变%Giant Spontaneous Phase Transformation Strain and Magnetic-field-induced Strain in Ni51 Mn25.5 Ga23.5 Single Crystal

    Institute of Scientific and Technical Information of China (English)

    游素琴; 武亮; 孔春阳; 马勇; 杨晓红; 崔玉亭

    2008-01-01

    通过交流磁化率、电阻、有无磁场下的马氏体相变应变测量,研究了Ni51Mn25.5Ga23.5单晶的马氏体相变和磁感生应变特性.伴随马氏体相变,该单晶展现出一个应变量高达-1.62%的自发双向形状记忆效应.采用磁场下冷却的方法,在材料的马氏体相获得了一个量值高达-1.5%且可逆的磁感生应变,该值近似为零场下冷却测量得到的磁感生应变的2倍.根据单晶生长机制和NiMnGa合金形状记忆特性,对上述结果进行了讨论.

  17. Survey of potential markets for devices using Californium-252

    International Nuclear Information System (INIS)

    Potential applications for devices or systems containing 252Cf in the years from 1975 to 1980 are estimated. The estimated number of devices and associated business value were derived from a survey of 46 industrial, educational and governmental organizations conducted from Jan. to May, 1975. Applications for devices and systems based on 252Cf are expected to increase by a factor of 7 in the 6-y period from 1975 to 1980. The annual business value of 252Cf devices should increase from 1.5 million dollars in 1975 to 10.8 million dollars in 1980. The potential European market should be several times as large as the US market, based on actual sales of 252Cf, which have been two to four times greater in Europe than in the US

  18. Automated absolute activation analysis with californium-252 sources

    Energy Technology Data Exchange (ETDEWEB)

    MacMurdo, K.W.; Bowman, W.W.

    1978-09-01

    A 100-mg /sup 252/Cf neutron activation analysis facility is used routinely at the Savannah River Laboratory for multielement analysis of many solid and liquid samples. An absolute analysis technique converts counting data directly to elemental concentration without the use of classical comparative standards and flux monitors. With the totally automated pneumatic sample transfer system, cyclic irradiation-decay-count regimes can be pre-selected for up to 40 samples, and samples can be analyzed with the facility unattended. An automatic data control system starts and stops a high-resolution gamma-ray spectrometer and/or a delayed-neutron detector; the system also stores data and controls output modes. Gamma ray data are reduced by three main programs in the IBM 360/195 computer: the 4096-channel spectrum and pertinent experimental timing, counting, and sample data are stored on magnetic tape; the spectrum is then reduced to a list of significant photopeak energies, integrated areas, and their associated statistical errors; and the third program assigns gamma ray photopeaks to the appropriate neutron activation product(s) by comparing photopeak energies to tabulated gamma ray energies. Photopeak areas are then converted to elemental concentration by using experimental timing and sample data, calculated elemental neutron capture rates, absolute detector efficiencies, and absolute spectroscopic decay data. Calculational procedures have been developed so that fissile material can be analyzed by cyclic neutron activation and delayed-neutron counting procedures. These calculations are based on a 6 half-life group model of delayed neutron emission; calculations include corrections for delayed neutron interference from /sup 17/O. Detection sensitivities of < or = 400 ppB for natural uranium and 8 ppB (< or = 0.5 (nCi/g)) for /sup 239/Pu were demonstrated with 15-g samples at a throughput of up to 140 per day. Over 40 elements can be detected at the sub-ppM level.

  19. Californium-252 neutron activation facility at the Savannah River Laboratory

    International Nuclear Information System (INIS)

    A neutron irradiation facility has been established to develop new analytical methods and for the support of research programs. A major component of this facility is a 252Cf source which provides both fission spectrum and thermal neutrons. (U.S.)

  20. Identification of Cys255 in HIF-1α as a novel site for development of covalent inhibitors of HIF-1α/ARNT PasB domain protein-protein interaction

    Energy Technology Data Exchange (ETDEWEB)

    Cardoso, Rosa; Love, Robert; Nilsson, Carol L; Bergqvist, Simon; Nowlin, Dawn; Yan, Jiangli; Liu, Kevin K.-C.; Zhu, Jing; Chen, Ping; Deng, Ya-Li; Dyson, H Jane; Greig, Michael J; Brooun, Alexei [Pfizer; (Scripps)

    2012-11-09

    The heterodimer HIF-1α (hypoxia inducible factor)/HIF-β (also known as ARNT-aryl hydrocarbon nuclear translocator) is a key mediator of cellular response to hypoxia. The interaction between these monomer units can be modified by the action of small molecules in the binding interface between their C-terminal heterodimerization (PasB) domains. Taking advantage of the presence of several cysteine residues located in the allosteric cavity of HIF-1α PasB domain, we applied a cysteine-based reactomics “hotspot identification” strategy to locate regions of HIF-1α PasB domain critical for its interaction with ARNT. COMPOUND 5 was identified using a mass spectrometry-based primary screening strategy and was shown to react specifically with Cys255 of the HIF-1α PasB domain. Biophysical characterization of the interaction between PasB domains of HIF-1α and ARNT revealed that covalent binding of COMPOUND 5 to Cys255 reduced binding affinity between HIF-1α and ARNT PasB domains approximately 10-fold. Detailed NMR structural analysis of HIF-1α-PasB-COMPOUND 5 conjugate showed significant local conformation changes in the HIF-1α associated with key residues involved in the HIF-1α/ARNT PasB domain interaction as revealed by the crystal structure of the HIF-1α/ARNT PasB heterodimer. Our screening strategy could be applied to other targets to identify pockets surrounding reactive cysteines suitable for development of small molecule modulators of protein function.

  1. Structural study of Sr0.3Ba0.7Nb2O6 and La0.030Sr0.255Ba0.700Nb2O6 ceramic systems

    International Nuclear Information System (INIS)

    Sr0.3Ba0.7Nb2O6 (SBN) and La0.030Sr0.255Ba0.700Nb2O6 (LSBN) ceramic compounds have been prepared using the traditional ceramic method at two different calcination temperatures (900 and 1000 deg. C) and later sintered both at 1400 deg. C. A study of the effects of the calcination temperatures and La substitution on the morphological, compositional, and structural properties of SBN and LSBN is presented using scanning electronic microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD) analysis. From Rietveld refinement processes, the XRD patterns were interpreted to evaluate such effects in the structural parameters and the site occupation factors of the heavy metals and oxygen atoms. The effect of the incorporation of La resulted in a 0.25% cell contraction and turned out to be higher than the 0.08% dilation effect produced by the increase of calcination temperature. The La ion with similar effective ionic radius and higher electronegativity is incorporated into the structure occupying the A1 site just like the Sr ions in the SBN compound. Differences in the site occupation factors between the SBN and LSBN samples lead to substantial changes in the physical properties such as temperature of relative dielectric constant maximum, relative dielectric constant, and dielectric loss, correlated with the distortion and the relative orientation of the oxygen octahedra.

  2. Cycle stability of La0.7Mg0.3Ni2.55-xCo0.45Cux (x=0-0.4) electrode alloys

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The La0.7Mg0.3Ni2.55-xCo0.45Cux (x=0, 0.1, 0.2, 0.3, 0.4) electrode alloys were prepared by casting and rapid quenching. Ni in the alloy was partially substituted by Cu in order to improve the cycle stability of La-Mg-Ni system (PuNi3-type) hydrogen storage alloy. The effects of substituting Ni with Cu on the microstructures and cycle stability of the alloys were investigated in detail. The results obtained by XRD, SEM and TEM show that the substitution of Cu for Ni is favourable for the formation of an amorphous in the as-quenched alloy, and this leads to an obvious refinement of the as-quenched alloy grains and a growth of the lattice constants and cell volumes of the as-cast and quenched alloys. The results obtained by the electrochemical measurement indicate that the cycle stability of the alloys significantly rises with the incremental variety of Cu content. When Cu content changes from 0 to 0.4, the cycle lives of the as-cast and quenched (30 m/s) alloys are enhanced from 72 to 88 cycles and from 100 to 121 cycles, respectively.

  3. Clinicopathologic features and pathogenesis of mycosis in head and neck%头颈部霉菌病255例临床病理特点及发病机制探讨

    Institute of Scientific and Technical Information of China (English)

    何春燕; 刘红刚; 张勇; 朴颖实; 张盛忠

    2009-01-01

    Objective To study the clinicopathologic characteristics and pathogenesis of mycosis in head and neck to enhance awareness of the disease. Methods The clinical and histopathologic data were retrospectively reviewed in 255 cases of mycosis. Pathologic changes of the mucosa of non- and invasive mycosis were observed, the fungi was displayed by modified Warthin-Starry (W-S) and PAS staining. 2 samples of noninvasive mycosis and 1 sample of invasive mycosis were observed under electron microscope. Results 234 cases were noninvasive mycosis, and 149 cases were fungal balls, of which 77.56% cases had calcified fungal hyphae. The mucosa of 15 cases had erosion under the fungal cenobium. 34 cases were allergic fungal sinusitis, and there were a large number of eosinophil infiltration inside mucosa and eosinophils exudation in the mucous secretions, and also Charcot-Leiden crystals and a small number Aspergillus hyphae and spores in the secretions. The remaining 36 cases were found in the mucosal surface inflammatory exudate and keratinization of the pharynx, sinus piriformis, larynx, hard palate, mastoid process and external auditory canal. 21 cases were invasive mycosis, invaded respectively in nasal cavity, unilateral or multilateral sinuses, pharynx, mastoid cavity and suhmandibular lymph nodes. 9 cases were accompanied with the same lateral orbita involvement. Conclusion Different types of mycosis have different pathological patterns, and the development of this disease has relations with the patient's immune state.%目的 观察头颈部霉菌病的临床病理特点,探讨发病机制.方法 对255例经病理组织学证实的头颈部霉菌病患者的临床和组织病理资料进行回顾性分析.以改良Warthin-Starry(W-S)、PAS染色显示真菌的形态特征.对2例非侵袭性和1例侵袭性霉菌病黏膜行透射电镜观察.结果 显微镜下检出非侵袭性霉菌病234例,149例为霉菌球,其中77.65%霉菌团块中菌丝有钙化;15例

  4. 21 CFR 173.255 - Methylene chloride.

    Science.gov (United States)

    2010-04-01

    ... section. (c) In coffee as a residue from its use as a solvent in the extraction of caffeine from green coffee beans, at a level not to exceed 10 parts per million (0.001 percent) in decaffeinated roasted coffee and in decaffeinated soluble coffee extract (instant coffee)....

  5. 16 CFR 255.1 - General considerations.

    Science.gov (United States)

    2010-01-01

    ... X typing on each keyboard and then picking the advertiser's brand. The announcer asks her why, and X... bloggers who will promote the advertiser's products on their personal blogs. The advertiser requests that...

  6. 16 CFR 255.2 - Consumer endorsements.

    Science.gov (United States)

    2010-01-01

    ... testing demonstrating that the net impression of its advertisement with such a disclaimer is non-deceptive... should not expect to have similar results,” the ad is likely to be deceptive unless the advertiser has... likely to have similar results” is insufficient to prevent this ad from being deceptive because...

  7. 49 CFR 178.255-15 - Report.

    Science.gov (United States)

    2010-10-01

    ... must be furnished to the owner for each new tank. Place Date Portable tank Manufactured for... Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS SPECIFICATIONS FOR...

  8. 15 CFR 255.2 - Qualifications.

    Science.gov (United States)

    2010-01-01

    ... stating that he is free from any communicable disease, physical deformity or disability that would... and possessing intellectual ability and suitable personal qualities; and (e) In possession of... recognized university, college or other institution of learning, with some training or experience in...

  9. 24 CFR 983.255 - Tenant screening.

    Science.gov (United States)

    2010-04-01

    ...) OFFICE OF ASSISTANT SECRETARY FOR PUBLIC AND INDIAN HOUSING, DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT... suitability for tenancy. However, the PHA may opt to screen applicants for family behavior or suitability for... in 25 CFR part 5, subpart L, apply to tenant screening....

  10. Phase transition strain and large magnetic field induced strain in Ni{sub 50.5}Mn{sub 24}Ga{sub 25.5} unidirectionally solidified alloy[75.30.Kz; 75.80.+q; 81.30.Kf; NiMnGa; Unidirectional solidification; Martensitic phase transition; Heusler alloy; Preferential orientation

    Energy Technology Data Exchange (ETDEWEB)

    Liang, T.; Jiang, C.B.; Xu, H.B. E-mail: xuhb@public.bta.net.cn; Liu, Z.H.; Zhang, M.; Cui, Y.T.; Wu, G.H

    2004-01-01

    A large magnetic-field-induced strain (MFIS) of 1150 ppm has been obtained in textured Ni{sub 50.5}Mn{sub 24}Ga{sub 25.5} polycrystal prepared by vertical zone melting unidirectional solidification. X-ray diffraction measurements of the cubic structure reveal that the preferential orientation along the growth direction is (2 2 0). Expansion and shrinkage phenomenon upon the martensitic transition has been observed at 223 K (martensitic transition temperature M{sub s}), indicating the existence of a preferential orientation of martensitic variants to minimize elastic energy. This martensitic transition strain can be enhanced six times, up to 1.5% shrinkage with a bias magnetic field of 1.5 T.

  11. OER of californium-252 at low dose rate for growth inhibition in Vicia faba

    International Nuclear Information System (INIS)

    OER of 252Cf, at low dose rate, has been determined for growth inhibition in Vicia faba roots. A new strain ''BelB'' was used; it was found to be more resistant to prolonged anoxia. Two sets of linear 252Cf sources were used (linear activity 0.31 and 0.47 (μg.cm-1)) in somewhat different geometrical arrangements. The (n+γ) 252Cf dose rates at the level of the root tips were 0.11 and 0.13 Gy.h-1 respectively. The relative contribution of the γ component Dsub(γ) to the total absorbed dose Dsub(n+γ) at the level of the root tips was evaluated Dsub(γ)/Dsub(n+γ)=0.35 for the first source-geometry and 0.42 for the second source-geometry. The reference radiation was the γ emission of 192Ir, used in the same geometrical conditions and for similar irradiation times. Irradiations performed in aerobic and anoxic conditions were alternated. OER values of 1.4 +- 0.1 and 1.5 +- 0.1 were observed for the 252Cf emission with the first and second source-geometry respectively. The corresponding OER values for 192Ir were 2.3 +- 0.2 and 2.6 +- 0.1; the derived oxygen gain factors were then equal to 1.6 and 1.7 repectively

  12. Multi-element neutron activation analysis of sediment using a californium-252 source

    International Nuclear Information System (INIS)

    The application of a 252Cf source to the neutron activation analysis of several elements in small (approximately 1.5 in. in dia) cores was studied using high-resolution gamma ray spectroscopy and manual data reduction. (U.S.)

  13. TASK 2.5.5 NATURAL EXPOSURE TESTING IN CALIFORNIA

    Energy Technology Data Exchange (ETDEWEB)

    Miller, William A [ORNL; Cheng, Mengdawn [ORNL; New, Joshua Ryan [ORNL; Ronnen, Levinson [Lawrence Berkeley National Laboratory (LBNL); Akbari, Hashem [Lawrence Berkeley National Laboratory (LBNL); Berhahl, Paul [Lawrence Berkeley National Laboratory (LBNL)

    2010-03-01

    Airborne particulate matter that settles on a roof can either reflect or absorb incoming solar radiation, dependent on the chemical content and size of the particles. These light scattering and absorption processes occur within a few microns of the surface, and can affect the solar reflectance of the roof. Wilkes et al. (2000) tested 24 different roof coatings on a low-slope test stand and observed about a 25% decrease in the solar reflectance of white-coated and aluminum-coated surfaces as the time of exposure increased; however, the decrease leveled off after 2 years. SPRI Inc. and its affiliates studied the effect of climatic exposure on the surface properties of white thermoplastic single-ply membranes and determined that membranes lose from 30 to 50% of their reflectance over 3 years (Miller et al. 2002). The CMRC and its affiliates AISI, NamZAC, MBMA, MCA and NCCA exposed unpainted and painted metal roofing on both steep- and low-slope test roofs and found that after 3 years, the painted polyvinylidene fluoride (PVDF) metal roofs lost less than 5% of their original reflectance (Miller et al. 2004). The results of the three different weathering studies are very interesting in terms of their solar reflectance after 3 years of exposure. The white thermoplastic membrane and white ceramic coating with white topcoat had original reflectance measures that were about 20 percentage points higher than the painted metal; however, after 3-years of field exposure the solar reflectance of the painted metal exceeds that of the thermoplastic membrane and equals that of the coating. The long-term loss of reflectance appears driven by the ability of the particulate matter to cling to the roof and resist being washed off by wind and or rain. Miller et al. (2002) discovered that aerosol deposition introduced biomass of complex microbial consortia onto the test roofs and the combination of contaminants and biomass accelerated the loss of solar reflectance for the thermoplastic membranes and the roof coatings. Airborne contaminants and biomass were also detected on the painted metal roofs; however, the loss of solar reflectance was less than 5% for the painted metal roofs. The chemistry of the PVDF paint resin system uses similar organic film bonding to that responsible for Teflon , making it extremely chemical resistant and dirt shedding. Miller and Rudolph (2003) found the PVDF painted metals maintained solar reflectance even after 30 years of climatic exposure. Therefore the reduction of roof reflectance is closely related to the composition of the roof and to the chemical profile of the contaminants soiling the roof. Contaminants collected from samples of roof products exposed at seven California weathering sites were analyzed for elements and carbons to characterize the chemical profile of the particles soiling each roof sample and to identify those elements that degrade or enhance solar reflectance. The losses in solar reflectance varied from site to site and also varied at a give site based on the color of the coupon. The least drop in reflectance was observed in the alpine climate of McArthur while the largest drop occurred in sites near urban development. Light color samples were soiled after just one year of exposure. The darker color coupons did not show the same seasonal variations in solar reflectance as observed for the lighter colors. However, after an additional year of exposure the samples at all sites regained most of their solar reflectance due to rain and/or wind washing. The loss of reflectance appears cyclical with the onset of seasons having more rainfall. Solar reflectance of the cool pigmented coupons always exceeded that of the conventional pigmented coupons. Climatic soiling did not cause the cool pigmented roof coupons to lose any more solar reflectance than their conventional pigmented counterparts. The effect of roof slope appears to have more of an effect on lighter color roofs whose solar reflectance exceeds at least 0.5 and visually shows the accumulation of airborne contaminants. The thermal emittance remained invariant with time and location and was therefore not affected by climatic soiling. A thin-film deposition model was developed based on first principles, which simulates light interaction with a soiled substrate. This model was used in combination with the measured data to determine the solar absorptance and reflectance of particulate matter at each of the sites calculated using least squares fitting routines. Principal Component Analysis was used to determine the most important combinations of chemicals correlated with changes in solar absorption. Linear regression helped extract an approximate correlation using chromium, iron and elemental carbon concentrations. It appears that chromium ranks first, iron ranks second, and elemental carbon ranks third in importance to soil absorptance in the data

  14. 16 CFR 255.5 - Disclosure of material connections.

    Science.gov (United States)

    2010-01-01

    .... Example 7: A college student who has earned a reputation as a video game expert maintains a personal... exchange for his review of the product, and given the value of the video game system, this fact...

  15. Dicty_cDB: CHM255 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available e-05 1 Y17350 |Y17350.1 Laminaria digitata simple tandem repeat DNA, Ld2-167. 60 4e-05 1 AC102934 |AC102934.... |AC136541.1 Rattus norvegicus clone CH230-287A11, *** SEQUENCING IN PROGRESS ***, 55 unordered pieces. 60 4

  16. 16 CFR 255.0 - Purpose and definitions.

    Science.gov (United States)

    2010-01-01

    ..., signature, likeness or other identifying personal characteristics of an individual or the name or seal of an... outside the context of the advertisement. One comments to the other how clean her brand makes her family's... her own brand. This obvious fictional dramatization of a real life situation would not be...

  17. 40 CFR 255.10 - Criteria for identifying regions.

    Science.gov (United States)

    2010-07-01

    ... configuration should be considered, weighing transportation costs against economies of scale. (2) Left-over... economies of scale, and affect marketability of resources recovered. A region should include...

  18. 40 CFR 98.255 - Procedures for estimating missing data.

    Science.gov (United States)

    2010-07-01

    ... data period. (c) For missing CO2, CO, O2, CH4, or N2O concentrations, gas flow rate, and percent... estimating missing data. A complete record of all measured parameters used in the GHG emissions calculations is required (e.g., concentrations, flow rates, fuel heating values, carbon content values)....

  19. 24 CFR 255.2 - GNMA right to assignment.

    Science.gov (United States)

    2010-04-01

    ... will have the right to perfect an assignment of the mortgage to itself. However, before exercising this right, GNMA will attempt to have the Mortgage assigned to another eligible coinsuring lender (unless... defaulting lender-issuer, GNMA will have the right to perfect an assignment of the Coinsured...

  20. 6 CFR 25.5 - Obligations of seller.

    Science.gov (United States)

    2010-01-01

    ... SAFETY Act, an action for the recovery of damages proximately caused by a Qualified Anti-Terrorism... employees resulting from an activity resulting from an Act of Terrorism when Qualified Anti-Terrorism..., relating to, or resulting from an Act of Terrorism when the Seller's Qualified Anti-Terrorism...

  1. 49 CFR 178.255-11 - Tank mountings.

    Science.gov (United States)

    2010-10-01

    ... Transportation Other Regulations Relating to Transportation PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION HAZARDOUS MATERIALS REGULATIONS SPECIFICATIONS FOR PACKAGINGS... this requirement. (b) All tank mountings such as skids, fastenings, brackets, cradles, lifting...

  2. 39 CFR 255.8 - Access to postal facilities.

    Science.gov (United States)

    2010-07-01

    ... Postal Service UNITED STATES POSTAL SERVICE ORGANIZATION AND ADMINISTRATION ACCESS OF PERSONS WITH... design standards of the Architectural Barriers Act (ABA) of 1968, 42 U.S.C. 4151 et seq., do not apply... consistent with efficient postal operations. In determining whether modifications not legally required...

  3. Dicty_cDB: SFL255 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available MAGE:4658276, mRNA, complete cds. 48 3e-11 4 BF936899 |BF936899.1 EST459954 Schistosoma mansoni female, Phil LoVerde/Joe...s. 48 5e-11 4 AI975066 |AI975066.1 EST269660 Schistosoma mansoni female, Phil LoVerde/Joe Merrick Schistosom

  4. Dicty_cDB: AFJ255 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available ne:pph30f12, 3' end,single read. 599 e-167 1 CN206669 |CN206669.1 Tor7097 Gametophyte rehydration Library To...34 |CN206834.1 Tor7258 Gametophyte rehydration Library Tortula ruralis cDNA, mRNA

  5. 40 CFR 52.255 - Gasoline transfer vapor control.

    Science.gov (United States)

    2010-07-01

    ... adsorption system, refrigeration-condensation system, or equivalent vapor removal system, and so constructed... Quality Control Regions, as described in 40 CFR part 81, dated July 1, 1979, with the following exceptions... line is connected before gasoline can be transferred into the container. (ii)...

  6. Low-metallicity Star Formation (IAU S255)

    Science.gov (United States)

    Hunt, Leslie K.; Madden, Suzanne C.; Schneider, Raffaella

    2009-01-01

    Preface; SOC and LOC; Participants; Life at the conference; Conference photo; Session I. Population III and Metal-Free Star Formation: 1. Open questions in the study of population III star formation S. C. O. Glover, P. C. Clark, T. H. Greif, J. L. Johnson, V. Bromm, R. S. Klessen and A. Stacy; 2. Protostar formation in the early universe Naoki Yoshida; 3. Population III.1 stars: formation, feedback and evolution of the IMF Jonathan C. Tan; 4. The formation of the first galaxies and the transition to low-mass star formation T. H. Greif, D. R. G. Schleicher, J. L. Johnson, A.-K. Jappsen, R. S. Klessen, P. C. Clark, S. C. O. Glover, A. Stacy and V. Bromm; 5. Low-metallicity star formation: the characteristic mass and upper mass limit Kazuyuki Omukai; 6. Dark stars: dark matter in the first stars leads to a new phase of stellar evolution Katherine Freese, Douglas Spolyar, Anthony Aguirre, Peter Bodenheimer, Paolo Gondolo, J. A. Sellwood and Naoki Yoshida; 7. Effects of dark matter annihilation on the first stars F. Iocco, A. Bressan, E. Ripamonti, R. Schneider, A. Ferrara and P. Marigo; 8. Searching for Pop III stars and galaxies at high redshift Daniel Schaerer; 9. The search for population III stars Sperello di Serego Alighieri, Jaron Kurk, Benedetta Ciardi, Andrea Cimatti, Emanuele Daddi and Andrea Ferrara; 10. Observational search for population III stars in high-redshift galaxies Tohru Nagao; Session II. Metal Enrichment, Chemical Evolution, and Feedback: 11. Cosmic metal enrichment Andrea Ferrara; 12. Insights into the origin of the galaxy mass-metallicity relation Henry Lee, Eric F. Bell and Rachel S. Somerville; 13. LSD and AMAZE: the mass-metallicity relation at z > 3 F. Mannucci and R. Maiolino; 14. Three modes of metal-enriched star formation at high redshift Britton D. Smith, Matthew J. Turk, Steinn Sigurdsson, Brian W. O'Shea and Michael L. Norman; 15. Primordial supernovae and the assembly of the first galaxies Daniel Whalen, Bob Van Veelen, Brian W. O'Shea and Michael L. Norman; 16. Damped Lyα systems as probes of chemical evolution over cosmological timescales Miroslava Dessauges-Zavadsky; 17. Connecting high-redshift galaxy populations through observations of local damped Lyman alpha dwarf galaxies Regina E. Schulte-Ladbeck; 18. Chemical enrichment and feedback in low metallicity environments: constraints on galaxy formation Francesca Matteucci; 19. Effects of reionization on dwarf galaxy formation Massimo Ricotti; 20. The importance of following the evolution of the dust in galaxies on their SEDs A. Schurer, F. Calura, L. Silva, A. Pipino, G. L. Granato, F. Matteucci and R. Maiolino; 21. About the chemical evolution of dSphs (and the peculiar globular cluster ωCen) Andrea Marcolini and Annibale D'Ercole; 22. Young star clusters in the small Magellanic cloud: impact of local and global conditions on star formation Elena Sabbi, Linda J. Smith, Lynn R. Carlson, Antonella Nota, Monca Tosi, Michele Cignoni, Jay S. Gallagher III, Marco Sirianni and Margaret Meixner; 23. Modeling the ISM properties of metal-poor galaxies and gamma-ray burst hosts Emily M. Levesque, Lisa J. Kewley, Kirsten Larson and Leonie Snijders; 24. Dwarf galaxies and the magnetisation of the IGM Uli Klein; Session III. Explosive Events in Low-Metallicity Environments: 25. Supernovae and their evolution in a low metallicity ISM Roger A. Chevalier; 26. First stars - type Ib supernovae connection Ken'ichi Nomoto, Masaomi Tanaka, Yasuomi Kamiya, Nozomu Tominaga and Keiichi Maeda; 27. Supernova nucleosynthesis in the early universe Nozomu Tominaga, Hideyuki Umeda, Keiichi Maeda, Ken'ichi Nomoto and Nobuyuki Iwamoto; 28. Powerful explosions at Z = 0? Sylvia Ekström, Georges Meynet, Raphael Hirschi and André Maeder; 29. Wind anisotropy and stellar evolution Cyril Georgy, Georges Meynet and André Maeder; 30. Low-mass and metal-poor gamma-ray burst

  7. 15 CFR 255.1 - Type of fellowships.

    Science.gov (United States)

    2010-01-01

    ... standardization and testing. (b) Practical laboratory training in various branches of physics, chemistry, and... include the usual subdivisions of physics (weights and measures, heat, optics, mechanics, atomic...

  8. Major overhaul of bucket-wheel excavator 255 in the Inden opencast mine; Grundinstandsetzung Schaufelradbagger 255 im Tagebau Inden

    Energy Technology Data Exchange (ETDEWEB)

    Pachurka, Frank F. [RWE Power AG, Frechen (Germany). Technikzentrum Tagebaue

    2011-05-15

    The result of the project, carried out in-house merely with internal staff for the first time (responsibility for project, planning, engineering, fabrication and assembly), was excellent. There was no notifiable accident. In total, only two entries were made in the bandage book, all specified overhaul quality requirements were met and the cost budget and time schedule of the overall project were adhered to. A high level of occupational safety on the construction site was achieved by regulated site coordination supported by the mine's technical department for occupational safety, weekly site meetings focusing on occupational safety, regular occupational safety notices at the construction site and constant inspections of the assembly yard by authorities and executives. Everyone involved displayed a high degree of awareness of occupational safety. In-depth and detailed planning ensured that all roles, responsibilities, costs and the scope of services were clearly defined at an early stage of the project. Right from the start, the project team included persons responsible for the implementation of assembly, enabling purposeful instructions to be integrated into assembly engineering straight away. This procedure promoted the early specification of important technical conditions and, consequentially, allowed the assembly processes to be optimized during implementation. Accurate internal accounting management permitted the cost development and the assembly progress to be monitored in near real-time, so that deviations could be detected and countermeasures initiated in good time. To sum up, the opencast mining division of RWE Power has successfully launched its scheme of optimizing third-party maintenance services. (orig.)

  9. Raman and absorption spectrophotometric studies of selected lanthanide, californium-doped lanthanide, and actinide trihalides in the solid state

    International Nuclear Information System (INIS)

    The solid-state absorption spectra of Cf(III) ions as a dopant in lanthanide trihalide hosts (LnCl3: Ln = Ce, Sm, and Y; LnBr3: Ln = Ce, Sm, Tb, and Y; LnI3: Ln = Ce and Y) have been recorded. The spectra of Cf(III) have been correlated with the various crystal structures. The phonon Raman spectra and solid-state absorption spectra of PmF3, PmCl3, PmBr3, and two crystal modifications of PmI3 have been recorded. Symmetry assignments have been made for the Raman-active bands for these trihalides and also the sesquioxide. The room-temperature absorption spectra have been correlated to crystal field effects. The symmetry assignments of the Raman-active phonon modes have been made based on polarized Raman spectra from single crystals of YF3-type orthorhombic TbF3 and PuBr3-type orthorhombic NdBr3. Raman spectra of other isostructural lanthanide compounds have been recorded and compared. Symmetry assignments for these compounds have been made by analogy to the single-crystal assignments. Raman spectra have been obtained and catalogued for a number of actinide compounds. Symmetry assignments have been made for the observed Raman-active phonon bands in this work based on the assignments made for isostructural lanthanide compounds. 29 figs., 22 tabs

  10. Determination of the optimum-size californium-252 neutron source for borehole capture gamma-ray analysis

    Science.gov (United States)

    Senftle, F.E.; Macy, R.J.; Mikesell, J.L.

    1979-01-01

    The fast- and thermal-neutron fluence rates from a 3.7 ??g 252Cf neutron source in a simulated borehole have been measured as a function of the source-to-detector distance using air, water, coal, iron ore-concrete mix, and dry sand as borehole media. Gamma-ray intensity measurements were made for specific spectral lines at low and high energies for the same range of source-to-detector distances in the iron ore-concrete mix and in coal. Integral gamma-ray counts across the entire spectrum were also made at each source-to-detector distance. From these data, the specific neutron-damage rate, and the critical count-rate criteria, we show that in an iron ore-concrete mix (low hydrogen concentration), 252Cf neutron sources of 2-40 ??g are suitable. The source size required for optimum gamma-ray sensitivity depends on the energy of the gamma ray being measured. In a hydrogeneous medium such as coal, similar measurements were made. The results show that sources from 2 to 20 ??g are suitable to obtain the highest gamma-ray sensitivity, again depending on the energy of the gamma ray being measured. In a hydrogeneous medium, significant improvement in sensitivity can be achieved by using faster electronics; in iron ore, it cannot. ?? 1979 North-Holland Publishing Co.

  11. Research and experimental work at Groote Schuur Hospital and the University of Cape Town using californium-252 sources

    International Nuclear Information System (INIS)

    Experiments have been undertaken to determine the high-LET and low-LET components of the absorbed dose from neutron beams. This is achieved by measuring the fluxes of the high-LET and low-LET radiations in a tissue-equivalent phantom individually and simultaneously using a scintillation probe fitted with a pulse shape discriminator. This system was successfully used with a 22 MeV neutron beam from the T(d,n) reaction and has been employed with 252Cf sources. Results obtained in the low-energy ranges (up to 3 MeV) indicate that the electron counts exceed the high-LET counts by a factor of 2 to 3. These results are related to the absorbed dose. Calculations have also been undertaken to establish whether the Paterson-Parker system could be used for the design of 252Cf treatments and the optimum needle activities to yield the desired dose. Experiments are under way to determine the variation of RBE and OER for 252Cf radiations around the source. The inhibition of root growth in Vicia Faba is being used to determine any such effects. Dose rates comparable to that employed in interstitial radiotherapy are being aimed at. A study of dose fractionation effects is also being undertaken. (author)

  12. Mutation c.255delA in the PARK2 gene as cause of juvenile Parkinson´s disease in a large Colombian family Una mutación en el gen PARK2 causa enfermedad de Parkinson juvenil en una extensa familia colombiana

    Directory of Open Access Journals (Sweden)

    Nicolas Pineda Trujillo

    2009-05-01

    ="MsoNormal" style="margin-bottom: 0.0001pt; text-align: justify; line-height: 150%;">Molecular evaluation included typing of microsatellites (SSTRs and direct sequencing of the exons of the gene.

    Our findings showed the presence, in a homozygous manner, of the mutation c.255delA, at exon 2 of PARK2. In addition, it was possible to identify a haplotype carried by both parents, and present in a homozygous manner in the affected children. A high rate of recombinants was observed in the analysed chromosomal region. Mutation c.255delA in PARK2 had been previously reported in families from both France and Spain.

    Our findings reconfirm the role of the PARK2 gene in the etiology of Parkinson´s disease, in particular of its juvenile form. Furthermore, taking into account that the identified mutation had been previously found in European populations, it is likely that it came into

    Colombia from that continent. Alternatively, this mutation might have occurred in a recurrent manner in a close ancestor of the studied family. In order to verify both possibilities it would be necessary to test flanking markers of the mutation in both European and Colombian chromosomes carrying it. Such markers could be either

    Movilidad de pacientes y obstáculos a la libre prestación de servicios. A propósito del reintegro de gastos médicos no hospitalarios realizados en otro Estado miembro. Comentario a la Sentencia del Tribunal de Justicia de la Unión Europea de 27 de octubre de 2011. Asunto C-255/09. Comisión/contra Portugal

    Directory of Open Access Journals (Sweden)

    Mª de los Reyes Martínez Barroso

    2014-06-01

    Full Text Available La libre prestación de servicios incluye dos manifestaciones íntimamente ligadas entre sí: la prohibición de cualquier restricción a dicha libertad y la aplicación del principio de tratamiento igual con independencia de la nacionalidad del prestador de servicios. A partir de tal premisa, el Tribunal de Justicia de la Unión Europea ha debido intervenir para solucionar diversos litigios derivados de la prestación de servicios sanitarios o del denominado “turismo sanitario a la carta”. En concreto, a propósito de los gastos de atención médica en otros Estados miembros de la Unión Europea y su posterior reintegro en el Estado de origen del asegurado en función de las normas de Seguridad Social de éste último país. Ante la ausencia de una regulación sobre la cuestión hasta fechas muy recientes (Directiva 2011/24/UE del Parlamento Europeo y del Consejo de 9 de marzo de 2011, relativa a la aplicación de los derechos de los pacientes en la asistencia sanitaria transfronteriza la labor interpretativa efectuada por el órgano jurisdiccional comunitario ha sido determinante para comprender el alcance de esta materia, declarando que solamente respecto de aquellas prestaciones en las que efectivamente pudiera existir una justificación derivada de la sostenibilidad del sistema público, como sucede en las prestaciones sanitarias hospitalarias, procederá la exigencia de una autorización previa. Por el contrario, cuando no se requiere el empleo de materiales pesados y onerosos, la exigencia del requisito de autorización previa resulta contraria al actual art. 56 TFUE (antiguo art. 49 TCE, como determina la sentencia comentada, de 27 de octubre de 2011, Comisión contra Portugal, C-255/09. La protección a ultranza de la libre prestación de servicios sanitarios obliga a reflexionar, por último, sobre la situación de la asistencia sanitaria en nuestro país.

  13. 28 CFR 2.55 - Disclosure of file prior to parole hearing.

    Science.gov (United States)

    2010-07-01

    ... CFR 2.14 the Commission only considers information concerning significant developments or changes in... disclosure for interim hearings will be limited to such information. (c) Exemption to disclosure (18 U.S.C... of disclosure. When a timely request has been made for disclosure, if any document or summary of...

  14. 7 CFR 1726.255 - Prior approved contract modifications related to indemnification.

    Science.gov (United States)

    2010-01-01

    ...) RUS Form 257, Contract to Construct Buildings, article IV, section 1(d). (4) RUS Form 786, Electric..., Electric System Construction Contract—Non-Site Specific Construction, article IV, section 1(g). (6) RUS Form 830, Electric System Construction Contract—Project Construction, article IV, section 1(g)....

  15. People and things. CERN Courier, Jun 1985, v. 25(5)

    International Nuclear Information System (INIS)

    The article reports on achievements of various people, staff changes and position opportunities within the CERN organization and contains news updates on upcoming or past events. To honour one of the greatest physicists of the century, who died last October, and a staunch friend, the International Centre for Theoretical Physics in Trieste has announced the Paul Adrien Dirac Gold Medal Award, to be given annually for highest achievement in theoretical physics. The International Committee for Future Accelerators, ICFA, held its twelfth meeting at the Tata Institute of Fundamental Research, Bombay, on 10 April. The CERN Accelerator School was greatly encouraged by the response to the General Accelerator Physics Course organized last year in collaboration with the Orsay and Saclay Laboratories in France. On 11 March, the International Centre for Theoretical Physics (ICTP) in Trieste paid tribute to the memory of Alfred Kastler, Nobel Laureate for Physics 1966 and Chairman of the ICTP Scientific Council from 1970 to 1982, who died on 7 January 1984

  16. 47 CFR 15.255 - Operation within the band 57-64 GHz.

    Science.gov (United States)

    2010-10-01

    ...-61.5 GHz, the average power density of any emission, measured during the transmit interval, shall not... average power density of any emission outside of the 61-61.5 GHz band, measured during the transmit... shall not exceed the following: (1) For products other than fixed field disturbance sensors, the...

  17. Yeast Interacting Proteins Database: YIL106W, YBR255W [Yeast Interacting Proteins Database

    Lifescience Database Archive (English)

    Full Text Available for the activation and Cdc15p-dependent phosphorylation of the Dbf2p kinase; required for cytokinesis and cell separation...r the activation and Cdc15p-dependent phosphorylation of the Dbf2p kinase; required for cytokinesis and cell separation

  18. Far Infrared Variability of Sagittarius A*: 25.5 Hours of Monitoring with $Herschel$

    CERN Document Server

    Stone, Jordan M; Dowell, C D; Schulz, B; Heinke, C O; Yusef-Zadeh, F

    2016-01-01

    Variable emission from Sgr~A*, the luminous counterpart to the super-massive black hole at the center of our Galaxy, arises from the innermost portions of the accretion flow. Better characterization of the variability is important for constraining models of the low-luminosity accretion mode powering Sgr~A*, and could further our ability to use variable emission as a probe of the strong gravitational potential in the vicinity of the $4\\times10^{6}\\mathrm{M}_{\\odot}$ black hole. We use the \\textit{Herschel} Spectral and Photometric Imaging Receiver (SPIRE) to monitor Sgr~A* at wavelengths that are difficult or impossible to observe from the ground. We find highly significant variations at 0.25, 0.35, and 0.5 mm, with temporal structure that is highly correlated across these wavelengths. While the variations correspond to $<$1% changes in the total intensity in the \\textit{Herschel} beam containing Sgr~A*, comparison to independent, simultaneous observations at 0.85 mm strongly supports the reality of the var...

  19. Yeast Interacting Proteins Database: YEL062W, YPL255W [Yeast Interacting Proteins Database

    Lifescience Database Archive (English)

    Full Text Available iates downregulation of TOR Complex 1 activity in response to amino acid limitation; transcription is induce...regulation of TOR Complex 1 activity in response to amino acid limitation; transcription is induced in respo

  1. 255 Chronic Obstructive Pulmonary Disease and Lung Cancer Share Inflammation Pathways

    OpenAIRE

    Kostas N. Syrigos; POLITI, EKATERINI; Makrilia, Nektaria; Tsimpoukis, Sotirios; Psarros, Fotis; Syrigou, Ekaterini; Dannos, Ioannis

    2012-01-01

    Background The relationship between inflammation, air obstruction and lung cancer is complex and there is still great uncertainty regarding their underlying pathophysiology. Our aim was to investigate the inflammation pathways that are implicated in both chronic obstructive pulmonary disease (COPD) and lung cancer. Methods A literature search was performed in PubMed to identify relative studies published until June 2011. Results The pathophysiology of both COPD and lung cancer includes dysreg...

  2. Far Infrared Variability of Sagittarius A*: 25.5 hr of Monitoring with Herschel

    Science.gov (United States)

    Stone, Jordan M.; Marrone, D. P.; Dowell, C. D.; Schulz, B.; Heinke, C. O.; Yusef-Zadeh, F.

    2016-07-01

    Variable emission from Sgr A*, the luminous counterpart to the super-massive black hole at the center of our Galaxy, arises from the innermost portions of the accretion flow. Better characterization of the variability is important for constraining models of the low-luminosity accretion mode powering Sgr A*, and could further our ability to use variable emission as a probe of the strong gravitational potential in the vicinity of the 4× {10}6{M}ȯ black hole. We use the Herschel Spectral and Photometric Imaging Receiver (SPIRE) to monitor Sgr A* at wavelengths that are difficult or impossible to observe from the ground. We find highly significant variations at 0.25, 0.35, and 0.5 mm, with temporal structure that is highly correlated across these wavelengths. While the variations correspond to \\lt 1 % changes in the total intensity in the Herschel beam containing Sgr A*, comparison to independent, simultaneous observations at 0.85 mm strongly supports the reality of the variations. The lowest point in the light curves, ∼0.5 Jy below the time-averaged flux density, places a lower bound on the emission of Sgr A* at 0.25 mm, the first such constraint on the THz portion of the spectral energy distribution. The variability on few hour timescales in the SPIRE light curves is similar to that seen in historical 1.3 mm data, where the longest time series is available, but the distribution of variations in the sub-mm do not show a tail of large-amplitude variations seen at 1.3 mm. Simultaneous X-ray photometry from XMM-Newton shows no significant variation within our observing period, which may explain the lack of very large submillimeter variations in our data if X-ray and submillimeter flares are correlated. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.

  3. 41 CFR 102-73.255 - What factors must Executive agencies consider when purchasing sites?

    Science.gov (United States)

    2010-07-01

    ... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false What factors must... Property Management Federal Property Management Regulations System (Continued) FEDERAL MANAGEMENT REGULATION REAL PROPERTY 73-REAL ESTATE ACQUISITION Acquisition by Purchase or Condemnation Buildings §...

  4. Yeast Interacting Proteins Database: YDL239C, YPL255W [Yeast Interacting Proteins Database

    Lifescience Database Archive (English)

    Full Text Available of a Don1p-containing structure at the leading edge of the prospore membrane via interaction with spindle p...ediate assembly of a Don1p-containing structure at the leading edge of the prospore membrane via interaction

  5. 18 CFR 2.55 - Definition of terms used in section 7(c).

    Science.gov (United States)

    2010-04-01

    ... and maintenance, and stream and wetland crossings. (4) Annual report. On or before May 1 of each year... paper copies) an annual report that lists for the previous calendar year each replacement project that... company does not have to include in this annual report any above-ground replacement project that did...

  6. 33 CFR 162.255 - Wrangell Narrows, Alaska; use, administration, and navigation.

    Science.gov (United States)

    2010-07-01

    ... OF HOMELAND SECURITY (CONTINUED) PORTS AND WATERWAYS SAFETY INLAND WATERWAYS NAVIGATION REGULATIONS.... (d) Size of tows. The maximum tows permitted shall be one pile driver, or three units of other.... Disabled craft in a condition of absolute necessity are exempt from the regulations in this section....

  7. An audit of the insulin-tolerance test in 255 patients with pituitary disease

    DEFF Research Database (Denmark)

    Lange, Martin; Svendsen, Ole L; Skakkebaek, Niels E;

    2002-01-01

    The insulin-tolerance test (ITT) is currently considered to be the gold standard for evaluating adults suspected of GH deficiency (GHD). The aim of this study was to determine factors that may influence nadir blood glucose (BG) when using a mean insulin dose of 0.1 IU/kg body weight. Furthermore,...

  8. Radiological Characterization Technical Report on Californium-252 Sealed Source Transuranic Debris Waste for the Off-Site Source Recovery Project at Los Alamos National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Feldman, Alexander [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2014-04-24

    This document describes the development and approach for the radiological characterization of Cf-252 sealed sources for shipment to the Waste Isolation Pilot Plant. The report combines information on the nuclear material content of each individual source (mass or activity and date of manufacture) with information and data on the radionuclide distributions within the originating nuclear material. This approach allows for complete and accurate characterization of the waste container without the need to take additional measurements. The radionuclide uncertainties, developed from acceptable knowledge (AK) information regarding the source material, are applied to the summed activities in the drum. The AK information used in the characterization of Cf-252 sealed sources has been qualified by the peer review process, which has been reviewed and accepted by the Environmental Protection Agency.

  9. Accurate determination of Curium and Californium isotopic ratios by inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) in 248Cm samples for transmutation studies

    International Nuclear Information System (INIS)

    The French Atomic Energy Commission has carried out several experiments including the mini-INCA (INcineration of Actinides) project for the study of minor-actinide transmutation processes in high intensity thermal neutron fluxes, in view of proposing solutions to reduce the radiotoxicity of long-lived nuclear wastes. In this context, a Cm sample enriched in 248Cm (∼97 %) was irradiated in thermal neutron flux at the High Flux Reactor (HFR) of the Laue-Langevin Institute (ILL). This work describes a quadrupole ICP-MS (ICP-QMS) analytical procedure for precise and accurate isotopic composition determination of Cm before sample irradiation and of Cm and Cf after sample irradiation. The factors that affect the accuracy and reproducibility of isotopic ratio measurements by ICP-QMS, such as peak centre correction, detector dead time, mass bias, abundance sensitivity and hydrides formation, instrumental background, and memory blank were carefully evaluated and corrected. Uncertainties of the isotopic ratios, taking into account internal precision of isotope ratio measurements, peak tailing, and hydrides formations ranged from 0.3% to 1.3%. This uncertainties range is quite acceptable for the nuclear data to be used in transmutation studies.

  10. Intergrated plant safety assessment. Systematic evaluation program. Palisades plant, Consumers Power Company, Docket No. 50-255. Final report

    International Nuclear Information System (INIS)

    The Nuclear Regulatory Commission (NRC) has published its Final Integrated Plant Safety Assessment Report (IPSAR) (NUREG-0820), under the scope of the Systematic Evaluation Program (SEP), for Consumers Power Company's Palisades Plant located in Covert, Van Buren County, Michigan. The SEP was initiated by the NRC to review the design of older operating nuclear reactor plants to reconfirm and document their safety. This report documents the review completed under the SEP for the Palisades Plant. The review has provided for (1) as assessment of the significance of differences between current technical positions on selected safety issues and those that existed when the Palisades Plant was licensed, (2) a basis for deciding on how these differences should be resolved in an integrated plant review, and (3) a documented evaluation of plant safety when all supplements to the Final IPSAR and the Safety Evaluation Report for converting the license from a provisional to a full-term license have been issued. The report also addresses the comments and recommendations made by the Advisory Committee on Reactor Safeguards in connection with its review of the Draft Report, issued in April 1982

  11. Safety Evaluation Report related to the full-term operating license for Palisades Nuclear Plant (Docket No. 50-255)

    International Nuclear Information System (INIS)

    The Safety Evaluation Report for the full-term operating license application filed by the Consumers Power Company for the Palisades Nuclear Plant has been prepared by the Office of Nuclear Reactor Regulation of the US Nuclear Regulatory Commission. The facility is located in Van Buren County, South Haven, Michigan. The staff has evaluated the issues related to the conversion of the provisional operating license to a full-term operating license and concludes that the facility can continue to be operated without endangering the health and safety of the public. 98 refs., 1 fig

  12. Institutional Care and Iron Deficiency Increase ADHD Symptomology and Lower IQ 2.5-5 Years Post-adoption

    OpenAIRE

    Doom, Jenalee R.; Georgieff, Michael K.; Gunnar, Megan R.

    2014-01-01

    Increased ADHD symptomology and lower IQ have been reported in internationally adopted (IA) children compared to non-adopted peers (Hostinar et al., 2013; Kreppner, O’Connor, & Rutter, 2001). However, it is unclear whether these outcomes are due to institutional deprivation specifically or to co-occurring micronutrient deficiencies that disrupt brain development (Fuglestad et al., 2008). In this study, IA children were compared to children raised in their biological families to examine differ...

  13. 41 CFR 102-74.255 - How must occupant evacuation or relocation be accomplished when there is immediate danger to...

    Science.gov (United States)

    2010-07-01

    ... evacuation or relocation be accomplished when there is immediate danger to persons or property, such as fire... danger to persons or property, such as fire, explosion or the discovery of an explosive device (not... immediate danger to persons or property, such as fire, explosion or the discovery of an explosive...

  14. A novel mutation, Y255X, of the ARSB gene in a Chinese family with mucopolysaccharidosis type Ⅵ

    Institute of Scientific and Technical Information of China (English)

    林青雲; 陳安琪; 赖志刚; 陳(亻)雄; 陳恩和; 石志忠; 湯瑞芬

    2004-01-01

    @@ Mucopolysaccharidoses (MPS) are lysosomal storage diseases with defective degradation of glycosa-minoglycans. Mucopolysaccharidosis type Ⅵ (MPS Ⅵ) or Maroteaux-Lamy syndrome is caused by defective arylsulfatase B in the lysosomes (ARSB; N-acetylgalactosamine-4-sulfatase, EC 3.1.6.12). The clinical manifestations of MPS VI include coarse facial features, growth retardation, short stature, skeletal malformations, hepatosplenomegaly, corneal clouding, and cervical myelopathy. Heart failure is the usual cause of death in the second or third decade of life. Despite all the physical disabilities, the intellect of MPS Ⅵ patients is preserved.1

  15. Demaria C., 2004, Développement durable et finance, Paris : Maxima Laurent du Mesnil Editeur, 255 p.

    Directory of Open Access Journals (Sweden)

    Marianne Rubinstein

    2005-05-01

    Full Text Available L’objectif de l’ouvrage de Cyril Demaria est de mettre à jour le lien existant entre développement durable et logique financière, de traiter du paradoxe apparent selon lequel la transition des sociétés vers le développement durable doit plus aux forces de marché qu’à toute autre dynamique : « le fait que les principaux leviers au service du développement durable soient les fonds d’investissement et les marchés financiers rompt donc avec une vision ‘révolutionnaire’ associée au développement d...

  16. 20 CFR 645.255 - What nondiscrimination protections apply to participants in Welfare-to-Work programs?

    Science.gov (United States)

    2010-04-01

    ... requirements of 29 CFR 37.70-37.80. (c) Complaints alleging discrimination in violation of any applicable... funds, shall not be discriminated against because of gender. Participants alleging gender discrimination... subpart (section 403(a)(5)(J)(iii)) of the Act). Participants alleging gender discrimination in...

  17. 20 CFR 255.12 - When recovery is contrary to the purpose of the Railroad Retirement Act.

    Science.gov (United States)

    2010-04-01

    ... as rent or pensions; and (4) Investment income. (c) For purposes of this section, resources may...; (3) Expenses for the support of others for whom the individual is legally responsible; and (4... disease must be considered. Example (2). A disability annuitant, D, is overpaid $33,000 because...

  18. Review of RBE and OER values for Cf-neutrons

    International Nuclear Information System (INIS)

    Californium-252, an isotope emitting neutrons, gamma photons and alpha particles, is being investigated for its practical use in intracavitary and interstitial brachytherapy. A review of published RBE and OER values for californium neutrons as a function of dose rate for a variety of biological endpoints is given. (Auth.)

  19. Determination of the Effectiveness of Intermediate Algebra-Accelerated (Math 255) as Preparation for Student Success in a Transferable Mathematics Course

    Science.gov (United States)

    Sworder, Steven C.

    2011-01-01

    Background: The Mathematics Department at Saddleback College created a 3-units intermediate algebra course as an alternative to the traditional 5-units intermediate algebra course. Forty percent of the material in the traditional course was composed of review topics from beginning algebra. The 3-units course did not contain that rehash of…

  20. Institutional Care and Iron Deficiency Increase ADHD Symptomology and Lower IQ 2.5-5 Years Post-Adoption

    Science.gov (United States)

    Doom, Jenalee R.; Georgieff, Michael K.; Gunnar, Megan R.

    2015-01-01

    Increased ADHD symptomology and lower IQ have been reported in internationally adopted (IA) children compared to non-adopted peers (Hostinar, Stellern, Schaefer, Carlson & Gunnar, 2012; Kreppner, O'Connor & Rutter, 2001). However, it is unclear whether these outcomes are due to institutional deprivation specifically or to co-occurring…

  1. Detection of parent H2O and CO2 molecules in the 2.5--5 micron spectrum of comet C/2007 N3 (Lulin) observed with AKARI

    CERN Document Server

    Ootsubo, Takafumi; Kawakita, Hideyo; Ishiguro, Masateru; Furusho, Reiko; Hasegawa, Sunao; Ueno, Munetaka; Watanabe, Jun-ichi; Sekiguchi, Tomohiko; Wada, Takehiko; Ohyama, Youichi; Oyabu, Shinki; Matsuhara, Hideo; Onaka, Takashi; Nakagawa, Takao; Murakami, Hiroshi

    2010-01-01

    Comet C/2007 N3 (Lulin) was observed with the Japanese infrared satellite AKARI in the near-infrared at a post-perihelion heliocentric distance of 1.7 AU. Observations were performed with the spectroscopic (2.5--5.0 micron) and imaging (2.4, 3.2, and 4.1 micron) modes on 2009 March 30 and 31 UT, respectively. AKARI images of the comet exhibit a sunward crescent-like shape coma and a dust tail extended toward the anti-solar direction. The 4.1 micron image (CO/CO2 and dust grains) shows a distribution different from the 2.4 and 3.2 micron images (H2O and dust grains). The observed spectrum shows distinct bands at 2.66 and 4.26 micron, attributed to H2O and CO2, respectively. This is the fifth comet in which CO2 has been directly detected in the near-infrared spectrum. In addition, CO at 4.67 micron and a broad 3.2--3.6 micron emission band from C-H bearing molecules were detected in the AKARI spectrum. The relative abundance ratios CO2/H2O and CO/H2O derived from the molecular production rates are \\sim 4%--5% a...

  2. Fission coincident neutrons from the reactions p + sup(235,236,238)U with protons between 12,7 and 25.5 MeV

    International Nuclear Information System (INIS)

    With the proton beam of the Hamburg isochronous cyclotron (HAIZY) thin uranium targets with the mass numbers 235, 236, and 238 were bombarded. Both fragments from the fission of the Np reaction systems and the neutrons coincident with the fragments were detected in the plane perpendicular to the beam direction. Measured and stored event by event were for all particles the times of flight. The detection of the neutron succeeded in conventional time-of-flight technique with NE213 liquid scintillators. A fission detector system with plastic scintillator foils was developed. It permits high event rates over long measuring times and allows the choice of so long neutron flight paths that a neutron energy resolution between 2% and 4% could be reached. The determination of the fragment masses is in spite of the short flight paths of 15 respectively 21 cm possible to +-2 amu. The isotropic component das discussed under the assumption that it is composed of prefission and scission neutrons which were emitted befor fission respectively during the fragmentation. From the post fission results the distribution of the excitation energy to both fragments was determined in dependence of Esup(*) and the fragment mass. (orig./HSI)

  3. 5-tert-Butyl-2-[5-(5-tert-butyl-1,3-benzoxazol-2-yl-2-thienyl]-1,3-benzoxazole

    Directory of Open Access Journals (Sweden)

    Fang-Fang Jian

    2008-12-01

    Full Text Available The title compound, C26H26N2O2S, was prepared by the reaction of thiophene-2,5-dicarboxylic acid and 2-amino-4-tert-butylphenol. One of the tert-butyl groups is disordered over two conformations, with occupancies of 0.539 (1 and 0.461 (2. The two 1,3-benzoxazole rings are almost planar, with dihedral angles of 0.83 (18 and 1.64 (17° between the five- and six-membered rings. The thiophene ring makes dihedral angles of 21.54 (19 and 4.49 (18° with the planes of the five-membered oxazole rings. The crystal packing is controlled by π–π stacking interactions involving the thiophene and benzene rings, with a centroid–centroid distance of 3.748 (2 Å.

  4. A new shipping container for an intense neutron emitter

    International Nuclear Information System (INIS)

    Californium-252 is an intense neutron emitter (2.34 x 1012 n/s·g) used in medicine, research, and industry. The western world's sole source of this rare radioisotope is the Californium Facility at Oak Ridge National Laboratory's Radiochemical Engineering Development Center (REDC). A project has been initiated at the REDC to design a new Type B Californium Shipping Container. This effort is essential for future transportation of californium to meet the needs of users all over the world. The shipping container must meet all requirements for transport by motor freight, air, vessel, and rail, both domestic and foreign. There are unique problems in the design, fabrication, and licensing of a new Type B shipping container that will accommodate up to 60 milligrams of californium-252. One of the first challenges in the design phase of the project is the selection of a material to shield the high neutron flux. The more stringent safety precautions of today's world impel us to consider more exotic materials for such a purpose. The candidate materials must be examined not just for their neutron shielding properties, but also in conjunction with other properties such as thermal and structural requirements to withstand the hypothetical accident conditions. The design and building of such a container is a formidable task requiring much planning. The licensing process, with the complex, interactive federal codes, is a special challenge and may be the biggest on the project in terms of time and money

  5. Application of Cf for the quantitative measurement of nuclear reactor fuel materials

    International Nuclear Information System (INIS)

    Sensitive and rapid measurements of the quantity and geometric distribution of nuclear reactor fuel materials can be made using neutrons from californium. The neutron-induced fission rate in these materials may be measured by detection of either prompt radiations from fission or delayed radiations from radioactive fission products. A number of californium-based instruments are presently in use by the nuclear industry for purposes of process control, quality control, nuclear materials safeguards, and environmentl assessment. An Automated Fuel Rod Scanner (AFRS) is used for high-speed measurement of the uniformity of loading and total fissile content of reactor fuel rods. The fuel rods are moved first through an irradiator containing about 1 mg of californium, and subsequently through high-efficiency detectors for the measurement of fission-product gamma-rays. Multiple detectors on each of two irradiation channels are used to reduce the californium source strength requirement. The fuel loading of each 15-mm-long pellet is tested to +-10% on 100% of the plant throughput. By summing the response over length, the total fissile material content of the fuel rod is measured to better than 0.5%. An on-line computer for data processing allows the instrument to measure about 150 rods per hour with a single operator. The same activation concept is used with a 25-μg californium source in a Small Sample Assay System (SSAS) which measures the fissile content of fuel pellet sized samples with a precision of 0.5%

  6. Vlasov B. Natural properties of Karst lakes in Belarus / B. Vlasov // Lakes and artificial water reservoirs – functioning, revitalization and protection. – Cosnowiec, 2005. – Р. 249–255.

    OpenAIRE

    Vlasov, Boris

    2005-01-01

    Abstract: Karst lakes of Belarus belong to the azonal type and are distributed in Polesje region in the area of superficial deposition of chalk rocks. Specific features of these type lakes include: small water surface, tunneled form of a hollow, low water exchange rate and increased level of water mineralization; the lakes refer to mesotrophic or eutrophic types.

  7. A Child Development Centre (C.D.C.) Based on the World of Work and Everyday Life: A Case of Quality Education Provision for 2.5-5 Year Old Children.

    Science.gov (United States)

    Frangos, Christos

    1993-01-01

    Outlines the organization and activities of the Child Development Centre (CDC) of Aristotle University in Thessaloniki, which operates as a model preschool and kindergarten for over 300 similar institutions throughout Greece. The CDC utilizes art, music, visits to workplaces, movement activities, foreign languages and customs, computers,and free…

  8. Magnetic measurements of the transuranium elements. Progress report, January 1, 1984-December 31, 1984

    International Nuclear Information System (INIS)

    Measurements of the magnetic properties of dhcp californium-249 metal indicated the presence of three regions of differing magnetic character. Additional measurements are also reported. Magnetic moments and valence states of terbium in TbF3, BaTbO3, and TbO18 are discussed. Progress on high-field operation of the micro-magnetic susceptometer is reported

  9. Application of PGNAA to preincineration assay of combustible waste for chlorine

    Energy Technology Data Exchange (ETDEWEB)

    Gehrke, R.J.; Pawelko, R.J.; Greenwood, R.C. [Idaho National Engineering Lab., Idaho Falls, ID (United States)

    1995-12-31

    A prompt gamma neutron activation analysis method is being developed for on-stream pre-incineration assay of low level radioactive combustible waste for it`s chlorine content. The assay system consists of three californium 252 sources and a germanium or scintillation gamma-ray spectrometer.

  10. Discovery of Isotopes of the Transuranium Elements with 93 <= Z <= 98

    CERN Document Server

    Fry, C

    2012-01-01

    One hundred and five isotopes of the transuranium elements neptunium, plutonium, americium, curium, berkelium and californium have so far been observed; the discovery of these isotopes is discussed. For each isotope a brief summary of the first refereed publication, including the production and identification method, is presented.

  11. Source storage and transfer cask: Users Guide

    International Nuclear Information System (INIS)

    The storage and shield cask for the dual californium source is designed to shield and transport up to 3.7 mg (2 Ci) of 252Cf. the cask meets Department of Transportation (DOT) license requirements for Type A materials (DOT-7A). The cask is designed to transfer sources to and from the Flourinel and Fuel Storage (FAST) facility delayed-neutron interrogator. Californium sources placed in the cask must be encapsulated in the SR-CF-100 package and attached to Teleflex cables. The cask contains two source locations. Each location contains a gear box that allows a Teleflex cable to be remotely moved by a hand crank into and out of the cask. This transfer procedure permits sources to be easily removed and inserted into the delayed-neutron interrogator and reduces personnel radiation exposure during transfer. The radiation dose rate with the maximum allowable quantity of californium (3.7 mg) in the cask is 30 mR/h at the surface and less than 2 mR/h 1 m from the cask surface. This manual contains information about the cask, californium sources, describes the method to ship the cask, and how to insert and remove sources from the cask. 28 figs

  12. Dicty_cDB: [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available VF (Link to library) VFC255 (Link to dictyBase) - - - Contig-U16272-1 VFC255P (Link... to Original site) VFC255F 198 VFC255Z 525 VFC255P 723 - - Show VFC255 Library VF (Link to library) Clone ID VFC255 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U16272-1 Original site URL http://dict...oducing significant alignments: (bits) Value N L08391 |L08391.1 Dictyostelium discoideum ribosomal protein (...ic 32.0 %: nuclear 4.0 %: Golgi 4.0 %: mitochondrial >> prediction for VFC255 is cyt 5' end seq. ID VFC255F

  13. Gclust Server: 145031 [Gclust Server

    Lifescience Database Archive (English)

    Full Text Available 145031 HSA_21450717 Cluster Sequences - 255 NP_659443.1 sushi domain containing 3 ;...nk to cluster sequences Cluster Sequences Link to related sequences - Sequence length 255 Representative annotation NP_659443.1 sushi

  14. Effect of a new aldose reductase inhibitor, 8'-chloro-2',3'-dihydrospiro [pyrrolidine-3,6'(5'H)-pyrrolo[1,2,3-de] [1,4]benzoxazine]-2,5,5'- trione (ADN-138), on delayed motor nerve conduction velocity in streptozotocin-diabetic rats.

    Science.gov (United States)

    Hirata, Y; Fujimori, S; Okada, K

    1988-02-01

    The effects of a chemically new type of aldose reductase inhibitor, ADN-138, on delayed motor nerve conduction velocity (MNCV) and sciatic nerve sorbitol, fructose and myo-inositol levels were studied in streptozotocin-diabetic rats. MNCV in rats was significantly delayed after 3 weeks of diabetes and ADN-138 treatment was started at this point. Treatment of diabetics with ADN-138 at 5 and 20 but not 1 mg/kg/d for 3 weeks resulted in a significant increase in MNCV and reduced sorbitol levels to or below those of nondiabetic controls. However, fructose, though decreased in a dose-dependent manner, was not normalized. The reference drug, Sorbinil, showed similar effects on them. After the 3 weeks of ADN-138(20 mg/kg/d) treatment, diabetics were left on ADN-138 or continued further to be treated with it for 3 weeks. The withdrawal of ADN-138 prevented a further increase in MNCV and restored sorbitol and fructose to nontreated diabetic levels, and myo-inositol levels declined. In contrast, the ADN-138-continued group kept improving its MNCV and normalized sorbitol and myo-inositol. These results suggest that polyol accumulation is responsible for delayed MNCV and that the action of ADN-138 on MNCV reflected reversibility of metabolic function in diabetics.

  15. Clizia Magoni, Fueros y libertades. El mito de la Constitución aragonesa en la Europa moderna, trad. de Antonio Pérez Martín, El Justicia de Aragón, Zaragoza, 2012, 255 págs.

    Directory of Open Access Journals (Sweden)

    Guillermo Hierrezuelo Conde

    2013-03-01

    Full Text Available En esta obra Clizia Magoni nos ofrece un estudio de la constitución aragonesa, conocida como fueros de Sobrarbe, que ha influido en tiempos venideros no sólo en España, sino también en Francia, Inglaterra o Estados Unidos de América. El origen de estos fueros lo encontramos en el historiador de origen local Gerónimo Blancas, considerado el cronista oficial del reino aragonés desde el año 1580, que reconstruyó los seis fueros en 1588 con el título de Aragonensium rerum commentarii.

  16. 76 FR 11254 - Agency Information Collection Activities: Declaration of Unaccompanied Articles

    Science.gov (United States)

    2011-03-01

    ... Unaccompanied Articles AGENCY: U.S. Customs and Border Protection (CBP), Department of Homeland Security. ACTION... the Declaration of Unaccompanied Articles (CBP Form 255). This request for comment is being made... Unaccompanied Articles. OMB Number: 1651-0030. Form Number: CBP Form 255. Abstract: CBP Form 255 is completed...

  17. A single mutation in the E2 glycoprotein important for neurovirulence influences binding of Sindbis virus to neuroblastoma cells

    NARCIS (Netherlands)

    Lee, PY; Knight, R; Smit, JM; Wilschut, J; Griffin, DE

    2002-01-01

    The amino acid at position 55 of the E2 glycoprotein (E2(55)) of Sindbis virus (SV) is a critical determinant of SV neurovirulence in mice. Recombinant virus strain TE (E2(55) = histidine) differs only at this position from virus strain 633 (E2(55) = glutamine), yet TE is considerably more neuroviru

  18. Characterization of berkelium(III) dipicolinate and borate compounds in solution and the solid state.

    Science.gov (United States)

    Silver, Mark A; Cary, Samantha K; Johnson, Jason A; Baumbach, Ryan E; Arico, Alexandra A; Luckey, Morgan; Urban, Matthew; Wang, Jamie C; Polinski, Matthew J; Chemey, Alexander; Liu, Guokui; Chen, Kuan-Wen; Van Cleve, Shelley M; Marsh, Matthew L; Eaton, Teresa M; van de Burgt, Lambertus J; Gray, Ashley L; Hobart, David E; Hanson, Kenneth; Maron, Laurent; Gendron, Frédéric; Autschbach, Jochen; Speldrich, Manfred; Kögerler, Paul; Yang, Ping; Braley, Jenifer; Albrecht-Schmitt, Thomas E

    2016-08-26

    Berkelium is positioned at a crucial location in the actinide series between the inherently stable half-filled 5f(7) configuration of curium and the abrupt transition in chemical behavior created by the onset of a metastable divalent state that starts at californium. However, the mere 320-day half-life of berkelium's only available isotope, (249)Bk, has hindered in-depth studies of the element's coordination chemistry. Herein, we report the synthesis and detailed solid-state and solution-phase characterization of a berkelium coordination complex, Bk(III)tris(dipicolinate), as well as a chemically distinct Bk(III) borate material for comparison. We demonstrate that berkelium's complexation is analogous to that of californium. However, from a range of spectroscopic techniques and quantum mechanical calculations, it is clear that spin-orbit coupling contributes significantly to berkelium's multiconfigurational ground state. PMID:27563098

  19. Measurement of the energy spectra of fission fragments using nuclear track detectors and digital image processing

    International Nuclear Information System (INIS)

    Energy spectra of fission fragments were determined using a Nuclear Track Methodology (NTM) supported by digital image analysis and numerical data processing using a standard personal computer. The analysis of a californium (252Cf) spectrum with this approach shows improvement compared with the values reported previously using the standard procedure, in terms of resolution and accuracy. This new method adds full automation to the technical advantages and cost effectiveness of an NTM.

  20. Neutron multiplicities for the transplutonium nuclides

    International Nuclear Information System (INIS)

    This paper continues, with respect to the transplutonium nuclides, earlier efforts to collate and evaluate data from the scientific literature on the prompt neutron multiplicity distribution from fission and its first moment = ΣnuPnu. The isotopes considered here for which P/sub nu/ and or data (or both) were found in the literature are of americium (Am), curium (Cm), berkelium (Bk), californium (Cf), einsteinium (Es), fermium (Fm), and nobelium (No)

  1. Study of heavy particle decay from superheavy elements by SK model

    International Nuclear Information System (INIS)

    Heavy nuclei usually decay by alpha decay or spontaneous fission. These two decay modes are generally the most probable competing processes. Another less probable decay process is cluster radioactivity in which nuclei from carbon to silicon are emitted from Radium to Californium leading to the most stable daughter nucleus, lead. This work reports such a study using the cubic plus Yukawa plus exponential model of Shanmugam and Kamalaharan (SK)

  2. Properties of neutron sources

    International Nuclear Information System (INIS)

    The Conference presentations were divided into sessions devoted to the following topics: white neutron sources, primarily pulsed (6 papers); fast neutron fields (5 papers); Californium-252 prompt fission neutron spectra (14 papers); monoenergetic sources and filtered beams (11 papers); 14 MeV neutron sources (10 papers); selected special application (one paper); and a general interest session (4 papers). Individual abstracts were prepared separately for the papers

  3. 78 FR 40092 - Inviting Rural Business Enterprise Grant Program Applications for Grants To Provide Technical...

    Science.gov (United States)

    2013-07-03

    ... Mexico USDA Rural Development State Office, 6200 Jefferson Street NE., Room 255, Albuquerque, NM 87109..., disability, sex, gender identity, religion, reprisal, and where applicable, political beliefs, marital...

  4. 75 FR 19348 - Notice of Funding Availability (NOFA): Section 515 Rural Rental Housing Program for New...

    Science.gov (United States)

    2010-04-14

    ..., age, disability, and where applicable, sex, marital status, parental status, religion, sexual... Hyatt, Jr.. New Mexico State Office, 6200 Jefferson St., NE, Room 255, Albuquerque, NM 87109, (505)...

  5. 76 FR 3605 - Notice of Solicitation of Applications (NOSA) for Inviting Rural Business Enterprise Grant...

    Science.gov (United States)

    2011-01-20

    ... Mexico USDA Rural Development State Office, 6200 Jefferson Street, Room 255, Albuquerque, NM 87109, (505... status, familial status, parental status, religion, sexual orientation, genetic information,...

  6. Neutron nondestructive essay of the plutonium metal parts

    International Nuclear Information System (INIS)

    Based on the principle of neutron multiplicity and data unfolding mathematics, this paper developed the software which can execute the neutron multiplicity analysis, neutron attenuation analysis, parameter calibration, Pu mass solution with the neutron pulse sequence acquisition method. The measurement system consisted of detector,nuclear electronic apparatus, pulsed sequence acquisition and analysis software was tested and calibrated by californium source. Three mental plutonium components with different mass were used for experimental assay and validation, which showed that the assay bias was within 15% against the nominal value of the samples. (authors)

  7. Physical-chemical studies of transuranium elements. Progress report, April 1, 1982-March 31, 1983

    International Nuclear Information System (INIS)

    Progress is reported on the following topics: electrochemical and spectroscopic studies of less-stable higher oxidation states of transuranium elements in complexing aqueous media; spectroscopic and electrochemical studies of selected lanthanides and actinides in molten dimethyl sulfone; spectroelectronchemical studies of the Ce(IV)/Ce(III) couple in aqueous carbonate solutions; characterization of actinide orthophosphates by Raman and absorption spectrophotometries and by x-ray diffraction; relativistic multiple scattering calculations on transuranium element compounds; Raman spectroscopic studies of natural minerals containing the uranyl ion; and solution calorimetry of californium metal

  8. Composition containing transuranic elements for use in the homeopathic treatment of aids

    Energy Technology Data Exchange (ETDEWEB)

    Lustig, D.

    1996-04-18

    A homeopathic remedy consisting of a composition containing one or more transuranic elements, particularly plutonium, for preventing and treating acquired immunodeficiency syndrome (AIDS) in humans, as well as seropositivity for human immunodeficiency virus (HIV). Said composition is characterized in that it uses any chemical or isotopic form of one or more transuranic elements (neptunium, plutonium, americium, curium, berkelium, californium or einsteinium), particularly plutonium, said form being diluted and dynamized according to conventional homeopathic methods, particularly the so-called Hahnemann and Korsakov methods, and provided preferably but not exclusively in the form of lactose and/or saccharose globules or granules impregnated with the active principle of said composition. (author).

  9. TOWARD AN IMPROVED UNDERSTANDING OF STRUCTURE AND MAGNETISM IN NEPTUNIUM AND PLUTONIUM PHOSPHONATES AND SULFONATES

    Energy Technology Data Exchange (ETDEWEB)

    Albrecht-Schmitt, Thomas

    2012-03-01

    This grant supported the exploratory synthesis of new actinide materials with all of the actinides from thorium to californium with the exceptions of protactinium and berkelium. We developed detailed structure-property relationships that allowed for the identification of novel materials with selective ion-exchange, selective oxidation, and long-range magnetic ordering. We found novel bonding motifs and identified periodic trends across the actinide series. We identified structural building units that would lead to desired structural features and novel topologies. We also characterized many different spectroscopic trends across the actinide series. The grant support the preparation of approximately 1200 new compounds all of which were structurally characterized.

  10. NONDESTRUCTIVE IDENTIFICATION OF CHEMICAL WARFARE AGENTS AND EXPLOSIVES BY NEUTRON GENERATOR-DRIVEN PGNAA

    Energy Technology Data Exchange (ETDEWEB)

    T. R. Twomey; A. J. Caffrey; D. L. Chichester

    2007-02-01

    Prompt gamma-ray neutron activation analysis (PGNAA) is now a proven method for the identification of chemical warfare agents and explosives in military projectiles and storage containers. Idaho National Laboratory is developing a next-generation PGNAA instrument based on the new Ortec Detective mechanically-cooled HPGe detector and a neutron generator. In this paper we review PGNAA analysis of suspect chemical warfare munitions, and we discuss the advantages and disadvantages of replacing the californium-252 radioisotopic neutron source with a compact accelerator neutron generator.

  11. Detection of rare earth elements in Powder River Basin sub-bituminous coal ash using laser-induced breakdown spectroscopy (LIBS)

    Energy Technology Data Exchange (ETDEWEB)

    Tran, Phuoc [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United State; Mcintyre, Dustin [National Energy Technology Lab. (NETL), Pittsburgh, PA, (United State

    2015-10-01

    We reported our preliminary results on the use of laser-induced breakdown spectroscopy to analyze the rare earth elements contained in ash samples from Powder River Basin sub-bituminous coal (PRB-coal). We have identified many elements in the lanthanide series (cerium, europium, holmium, lanthanum, lutetium, praseodymium, promethium, samarium, terbium, ytterbium) and some elements in the actinide series (actinium, thorium, uranium, plutonium, berkelium, californium) in the ash samples. In addition, various metals were also seen to present in the ash samples

  12. Composition containing transuranic elements for use in the homeopathic treatment of aids

    International Nuclear Information System (INIS)

    A homeopathic remedy consisting of a composition containing one or more transuranic elements, particularly plutonium, for preventing and treating acquired immunodeficiency syndrome (AIDS) in humans, as well as seropositivity for human immunodeficiency virus (HIV). Said composition is characterized in that it uses any chemical or isotopic form of one or more transuranic elements (neptunium, plutonium, americium, curium, berkelium, californium or einsteinium), particularly plutonium, said form being diluted and dynamized according to conventional homeopathic methods, particularly the so-called Hahnemann and Korsakov methods, and provided preferably but not exclusively in the form of lactose and/or saccharose globules or granules impregnated with the active principle of said composition. (author)

  13. NONDESTRUCTIVE IDENTIFICATION OF CHEMICAL WARFARE AGENTS AND EXPLOSIVES BY NEUTRON GENERATOR-DRIVEN PGNAA

    International Nuclear Information System (INIS)

    Prompt gamma-ray neutron activation analysis (PGNAA) is now a proven method for the identification of chemical warfare agents and explosives in military projectiles and storage containers. Idaho National Laboratory is developing a next-generation PGNAA instrument based on the new Ortec Detective mechanically-cooled HPGe detector and a neutron generator. In this paper we review PGNAA analysis of suspect chemical warfare munitions, and we discuss the advantages and disadvantages of replacing the californium-252 radioisotopic neutron source with a compact accelerator neutron generator

  14. Use of trioctylphosphine oxide for transplutonium element extraction and purification

    International Nuclear Information System (INIS)

    Investigated was extraction of tri-valent curium, berkelium, californium, einsteinium as well as cerium and europium with trioctylphosphin oxide from lactic acid solutions, containing DTPA and aluminium nitrate depending on the aluminium nitrate and TOPO concentrations and nitric acid solutions of variable concentration as well. Under optimum conditions of extraction chromatography of berkelium studied was the distribution of cobalt, nickel, chromium, iron, aluminium, titanium, zirconium and niobium ions, and the coefficients of berkelium purification from cations investigated were determined. The effect of weight quantities of cation impurities on extraction chromatographic yield of berkelium has been investigated. Examples of practice application of the extraction chromatography with the use of TOPO are given

  15. PROCEEDINGS OF THE SYMPOSIUM COMMEMORATING THE 25th ANNIVERSARY OF ELEMENTS 97 and 98 HELD ON JAN. 20, 1975

    Energy Technology Data Exchange (ETDEWEB)

    Seaborg, Glenn T.; Street Jr., Kenneth; Thompson, Stanley G.; Ghiorso, Albert

    1976-07-01

    This volume includes the talks given on January 20, 1975, at a symposium in Berkeley on the occasion of the celebration of the 25th anniversary of the discovery of berkelium and californium. Talks were given at this symposium by the four people involved in the discovery of these elements and by a number of people who have made significant contributions in the intervening years to the investigation of their nuclear and chemical properties. The papers are being published here, without editing, in the form in which they were submitted by the authors in the months following the anniversary symposium, and they reflect rather faithfully the remarks made on that occasion.

  16. Neutron crosstalk between liquid scintillators

    Energy Technology Data Exchange (ETDEWEB)

    Verbeke, J. M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Prasad, M. K. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Snyderman, N. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-05-01

    We propose a method to quantify the fractions of neutrons scattering between liquid scintillators. Using a spontaneous fission source, this method can be utilized to quickly characterize an array of liquid scintillators in terms of crosstalk. The point model theory due to Feynman is corrected to account for these multiple scatterings. Using spectral information measured by the liquid scintillators, fractions of multiple scattering can be estimated, and mass reconstruction of fissile materials under investigation can be improved. Monte Carlo simulations of mono-energetic neutron sources were performed to estimate neutron crosstalk. A californium source in an array of liquid scintillators was modeled to illustrate the improvement of the mass reconstruction.

  17. Study by thermochromatography of fluorides of transuranium elements

    International Nuclear Information System (INIS)

    Thermochromatography was made suitable for fluoride study. So, an investigation of actinide tetrafluorides was accomplished from uranium to californium. Pentavalent and hexavalent fluorospecies of uranium, neptunium, plutonium and ruthenium were studied. Some new compounds have been identified in gaseous phase, whose: PuF5, PuOF3 and PaOF3. Furthermore, some presomptions as for the existence in gaseous phase of EsF4 and of an heptavalent fluorospecies of plutonium have been established. An important analogy between plutonium and ruthenium behaviour with fluorine have been shown, these results could explain the difficulties encountered in the fluoride-volatility processes

  18. Method for measuring multiple scattering corrections between liquid scintillators

    Science.gov (United States)

    Verbeke, J. M.; Glenn, A. M.; Keefer, G. J.; Wurtz, R. E.

    2016-07-01

    A time-of-flight method is proposed to experimentally quantify the fractions of neutrons scattering between scintillators. An array of scintillators is characterized in terms of crosstalk with this method by measuring a californium source, for different neutron energy thresholds. The spectral information recorded by the scintillators can be used to estimate the fractions of neutrons multiple scattering. With the help of a correction to Feynman's point model theory to account for multiple scattering, these fractions can in turn improve the mass reconstruction of fissile materials under investigation.

  19. NCBI nr-aa BLAST: CBRC-ACAR-01-1153 [SEVENS

    Lifescience Database Archive (English)

    Full Text Available CBRC-ACAR-01-1153 ref|YP_319126.1| Multi antimicrobial extrusion protein MatE [Nitr...obacter winogradskyi Nb-255] gb|ABA05774.1| Multi antimicrobial extrusion protein MatE [Nitrobacter winogradskyi Nb-255] YP_319126.1 0.55 30% ...

  20. Sensemaking

    DEFF Research Database (Denmark)

    Schilhab, Theresa

    2012-01-01

    2012a Sensemaking. In D. Favareau, P. Cobley & K. Kull (Eds.) A More Developed Sign: Interpreting the work of Jesper Hoffmeyer.255-257. Tartu: Tartu University Press.......2012a Sensemaking. In D. Favareau, P. Cobley & K. Kull (Eds.) A More Developed Sign: Interpreting the work of Jesper Hoffmeyer.255-257. Tartu: Tartu University Press....

  1. Genetic diversity of taro, Colocasia esculenta (L.) Schott, in Southeast Asia and the Pacific

    NARCIS (Netherlands)

    Kreike, N.; Eck, van H.J.; Lebot, V.

    2004-01-01

    The genetic diversity of 255 taro (Colocasia esculenta) accessions from Vietnam, Thailand, Malaysia, Indonesia, the Philippines, Papua New Guinea and Vanuatu was studied using AFLPs. Three AFLP primer combinations generated a total of 465 scorable amplification products. The 255 accessions were grou

  2. AcEST: BP917622 [AcEST

    Lifescience Database Archive (English)

    Full Text Available terized protein MG098 OS=Mycoplasma... 31 3.6 sp|Q8MQW8|SPRI_DROME Protein sprint OS=Drosophila melanogaster...FN 254 Query: 444 Y 446 Y Sbjct: 255 Y 255 >sp|Q8MQW8|SPRI_DROME Protein sprint OS=Drosophila melanogaster G

  3. 76 FR 12104 - Pick-Sloan Missouri Basin Program-Eastern Division-2021 Power Marketing Initiative Proposal

    Science.gov (United States)

    2011-03-04

    ... North, Billings, MT 59101- 1266. Comments may also be faxed to (406) 255-2900 or e-mailed to UGP2021..., Western Area Power Administration, 2900 4th Avenue North, Billings, MT 59101-1266, telephone (406) 255...-SMBP--ED Marketing Plan (1985 Plan) was published in the Federal Register (45 FR 71860, October...

  4. AcEST: DK950324 [AcEST

    Lifescience Database Archive (English)

    Full Text Available tein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein OS=Zizip... 255 2e-66 tr|...ANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protei

  5. AcEST: DK958308 [AcEST

    Lifescience Database Archive (English)

    Full Text Available edic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein OS=Zizip... 255 2e-66 tr|A9T8M3|A9...: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein OS=Zizi

  6. 瓜实蝇对虚拟波长下不同颜色的趋性%Preferences of Bactrocera cucurbitae (Diptera: Tephritidae)to different colors: a quantitative investigation using virtual wavelength

    Institute of Scientific and Technical Information of China (English)

    薛皇娃; 吴伟坚

    2013-01-01

    利用害虫对不同颜色的趋性进行害虫防治,如利用黄板对实蝇的监测和防治已有很长的历史,然而尚未见把颜色量化进行实蝇对颜色偏嗜性研究的报道.为探明对瓜实蝇Bactrocera Cucurbitue最具吸引力的颜色及其虚拟波长,本试验应用Dan Bruton的虚拟波长与RGB值的函数关系,把RGB值转换为虚拟波长;选择RGB值[(0,213,255),(0,255,146),(54,255,0),(129,255,0),(195,255,0),(255,255,0),(255,190,0)和(255,119,0)]的颜色进行打印,这些颜色对应的虚拟波长分别是480,500,520,540,560,580,560和600 nm;在八面体内进行瓜实蝇对8种颜色的偏嗜性试验.结果表明:波长在520 ~ 560 nm之间对应的颜色对瓜实蝇的吸引率高于其他虚拟波长对应的颜色,而540 nm(黄绿色,RGB值为129,255,0)对应的颜色纸对瓜实蝇的吸引率最大.此外田间颜色偏嗜性试验也证实了黄绿色对瓜实蝇有最强的引诱作用.结果说明,黄绿色(虚拟波长540nm)是吸引瓜实蝇的关键颜色,黄绿色粘虫板可作为监测与防治瓜实蝇的一种有效方法.%Various colors have been used as visual cues to trap insect pests.For example,yellow traps for monitoring and controlling of the fruit flies have been used for a very long time.However,the chromatic cue of using color traps has never been quantitatively investigated.To reveal which wavelengths are most attractive to the fly,experiments were conducted to evaluate the preferences of Bactrocera cucurbitae to different colors.In this study,RGB values and virtual wavelengths were converted each other based on Dan Bruton' s wavelength to RGB function.Eight color papers were printed by color printer based on RGB values [(0,213,255),(0,255,146),(54,255,0),(129,255,0),(195,255,0),(255,255,0),(255,190,0) and (255,119,0)] and were chosen to test the color preference of the melon fly,Bactrocera cucurbitae in an octagon maze,and their equivalent wavelengths were 480 nm,500 nm,520 nm,540 nm,560 nm,580

  7. Toxic Effects of Lithium Chloride during Early Neonatal Period of Rat Development.

    Science.gov (United States)

    Menshanov, P N; Bannova, A V; Dygalo, N N

    2016-02-01

    Lithium chloride (85, 255, or 255+127 μg/kg) or dexamethasone (0.2 or 2 mg/kg) were subcutaneously injected to 3-day-old rat pups, whose excretory system did not yet attain functional maturity. Both agents retarded the growth of rat pups and delayed the appearance of negative geotaxis. LD50 and therapeutic index of lithium chloride were 255 μg/kg and TI≤3, respectively. Thus, lithium salts even in low doses can be highly toxic for the developing organism. PMID:26906201

  8. Selective Nonroutine Microbial Surveillance of In-Use Hospital Nebulizers by Aerosol Entrapment and Direct Sampling Analyses of Solutions in Reservoirs

    OpenAIRE

    Reinhardt, Donald J.; Kennedy, Christopher; Malecka-Griggs, Blanche

    1980-01-01

    Effluent aerosols and liquid reservoir samples from 255 in-use hospital nebulization devices were analyzed by Aero-Test samplers (Olympic Corp.) and direct dilution procedures (0.1-, 0.01-, and 0.001-ml plated samples). Thirty-five percent (89 of 255) of the in-use hospital reservoir samples were positive by direct dilution, and 24% (61 of 255) were positive by Aero- Test samplers. Acinetobacter calcoaceticus var. anitratus was found either alone or in association with Pseudomonas spp. in 50%...

  9. AcEST: DK953554 [AcEST

    Lifescience Database Archive (English)

    Full Text Available GLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein OS=Ziziphus jujuba GN=UBQ PE=2 SV=1 L...m tu... 255 2e-66 tr|B7FGN8|B7FGN8_MEDTR Putative uncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin exte...nsive-like protein OS=Zizip... 255 2e-66 tr|A9T8M3|A9T8M3_PHYPA Predicted protein O

  10. 2010 chemical treatment on the Malheur National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes noxious weed control on Malheur National Wildlife Refuge in 2010. There were 4,255.4 acres treated on the refuge. The total cost for this...

  11. Introducing Undergraduates to Global Health Epidemiology, Emerging Infectious Diseases, and Parasitology: A Small Book with a Big Impact

    Directory of Open Access Journals (Sweden)

    Dara L. Wegman-Geedey

    2014-08-01

    Full Text Available Review of: Forgotten People, Forgotten Diseases: The Neglected Tropical Diseases and their Impact on Global Health and Development, 2nd Edition; Peter J. Hotez; (2013. ASM Press, Washington, DC. 255 pages.

  12. Introducing Undergraduates to Global Health Epidemiology, Emerging Infectious Diseases, and Parasitology: A Small Book with a Big Impact

    OpenAIRE

    Wegman-Geedey, Dara L.

    2014-01-01

    Review of: Forgotten People, Forgotten Diseases: The Neglected Tropical Diseases and their Impact on Global Health and Development, 2nd Edition; Peter J. Hotez; (2013). ASM Press, Washington, DC. 255 pages.

  13. AcEST: DK961536 [AcEST

    Lifescience Database Archive (English)

    Full Text Available EKFGMSPSKGVLFYGPPGCGKTLLA Sbjct: 473 VEVPNVSWEDIGGLENVKRELQETVQYPVEHPEKFEKFGMSPSKGVLFYGPPGCGKTLLA 532 Query: 359 KAIANECQANFIS...IKGPELLTMWFGESEANVRDVFDKARQSAPCVLFFDELDSIATQXXX 538 KAIANECQANFIS+KGPELLTMWFGESEANVR++FDKA...RQSAPCVLFFDELDSIATQ Sbjct: 533 KAIANECQANFISVKGPELLTMWFGESEANVREIFDKARQSAPCVLFFDE...VELPLRHPQLFKSIGVKPPKGILLYGPPGSGK 255 Query: 347 TLLAKAIANECQANFISIKGPELLTMWFGESEANVRDVFDKARQSAPCVLFFDELDSIAT...EKFEKFGMSPSKGVLFYGPPGCGKTLLA 532 Query: 359 KAIANECQANFISIKGPELLTMWFGESEANVRDVFDKARQSAPCVLFFDELDSIATQXXX 538 KAIANECQANFIS

  14. Arno Rafael Cederberg ja Eesti ajalooteadus / Hans Kruus

    Index Scriptorium Estoniae

    Kruus, Hans, 1891-1976

    2005-01-01

    Soome ajalooprofessorist Arno Rafael Cederbergist (1885-1948). Tartu Ülikoolis töötades oli tema peamine õppe-ja uurimisaine Eesti ja Põhjamaade ajalugu. Ilm.: Eesti Kirjandus, 1935, nr. 6., lk. 254-255

  15. Politsei : pronksiöö tuli meile ootamatult / Lauri Birkan

    Index Scriptorium Estoniae

    Birkan, Lauri

    2008-01-01

    Tehes kokkuvõtteid politseinike tööst aprillirahutuste ajal, tõdeti, et korravalvurid ei olnud nii laiaulatuslikeks rahutusteks ette valmistunud. Vt. samas: Riik maksis kahju katteks 25,5 miljonit krooni

  16. High Blood Pressure Facts

    Science.gov (United States)

    ... Heart Disease Cholesterol Salt Million Hearts® WISEWOMAN High Blood Pressure Facts Recommend on Facebook Tweet Share Compartir ... facts about high blood pressure [PDF-255K] . High Blood Pressure in the United States About 70 million ...

  17. 78 FR 42749 - Southern Montana Resource Advisory Committee

    Science.gov (United States)

    2013-07-17

    ... Main Street, Billings, MT 59105. Telephone Number: (406) 255-1411. FOR FURTHER INFORMATION CONTACT...: July 9, 2013. Gregory Parham, Assistant Secretary of Administration. BILLING CODE 3410-11-P...

  18. 78 FR 42750 - Gallatin County Resource Advisory Committee

    Science.gov (United States)

    2013-07-17

    ... Main Street, Billings, MT 59105. Telephone Number: (406) 255-1411. FOR FURTHER INFORMATION CONTACT...: July 9, 2013. Gregory Parham, Assistant Secretary of Administration. BILLING CODE 3410-11-P...

  19. Drug: D08825 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available tegory of drugs in Japan [BR:br08301] 2 Agents affecting individual organs 25 Urogenital and anal organ agents 255 Hemorrhoidal prepa...rations 2559 Others D08825 Hemolingual PubChem: 96025508 ...

  20. Efficacy of sodium bicarbonate as anaesthetic for yellow seahorse, Hippocampus kuda (Bleeker, 1852)

    Digital Repository Service at National Institute of Oceanography (India)

    Pawar, H.B.; Ingole, B.S.; Sreepada, R.A.

    Artemia, mysids or pelleted feeds. Aquaculture 255, 233–241. 27. Zar, J. H., 2005. Biostatistical analysis, Fourth addition, Pearson education (Singapore) Pvt. Ltd., Indian Branch, Delhi: 633 p. Source of support: Nil; Conflict of interest: None...

  1. 48 CFR 32.006-2 - Definition.

    Science.gov (United States)

    2010-10-01

    ... criminal, civil, administrative, and contractual remedies resulting from investigations of fraud or corruption related to procurement activities. (See 10 U.S.C. 2307(i)(10) and 41 U.S.C. 255(g)(9).)...

  2. Zygophyllum gaetulum attenuates hypercholesterolemia and protects against oxidative stress in rats fed a high-cholesterol diet

    Directory of Open Access Journals (Sweden)

    Sadia Berzou

    2014-12-01

    Conclusion: These results show that Zygophyllum gaetulum aqueous extract improves hypercholesterolemia and oxidative stress induced by a high cholesterol diet and consequently may protect against cardiovascular diseases. [J Exp Integr Med 2014; 4(4.000: 255-260

  3. 40 CFR 86.1312-2007 - Filter stabilization and microbalance workstation environmental conditions, microbalance...

    Science.gov (United States)

    2010-07-01

    ... website at www.iest.org or phone (847) 255-1561). An alternative recommendation would be to equilibrate... accuracy and 0.01% per-year full scale stability, and the full-scale value used for such a...

  4. Field Plot and Observation Points for Fossil Butte National Monument Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — This point file contains 255 point locations of field plot and observation data used by, and collected for, the vegetation mapping project for Fossil Butte National...

  5. 15 CFR Appendix A to Subpart R of... - Thunder Bay National Marine Sanctuary and Underwater Preserve Boundary Coordinates

    Science.gov (United States)

    2010-01-01

    ... 15 Commerce and Foreign Trade 3 2010-01-01 2010-01-01 false Thunder Bay National Marine Sanctuary and Underwater Preserve Boundary Coordinates A Appendix A to Subpart R of Part 922 Commerce and... Preserve Boundary Coordinates Point Latitude Longitude 1 45°12′25.5″ 83°23′18.6″ 2 45°12′25.5″ 83°00′00″...

  6. AcEST: DK961175 [AcEST

    Lifescience Database Archive (English)

    Full Text Available B7FGN8_MEDTR Putative uncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive...DRHYCGKCGLTYVYQKA Sbjct: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin exten...sive-like protein OS=Ziziphus jujuba GN=UBQ PE=2 SV=1 Length = 156 Score = 255 bits

  7. Improved FEC Code Based on Concatenated Code for Optical Transmission Systems

    Institute of Scientific and Technical Information of China (English)

    YUAN Jian-guo; JIANG Ze; MAO You-ju

    2006-01-01

    The improved three novel schemes of the super forward error correction(super-FEC) concatenated codes are proposed after the development trend of long-haul optical transmission systems and the defects of the existing FEC codes have been analyzed. The performance simulation of the Reed-Solomon(RS)+Bose-Chaudhuri-Hocguenghem(BCH) inner-outer serial concatenated code is implemented and the conceptions of encoding/decoding the parallel-concatenated code are presented. Furthermore,the simulation results for the RS(255,239)+RS(255,239) code and the RS(255,239)+RS(255,223) code show that the two consecutive concatenated codes are a superior coding scheme with such advantages as the better error correction,moderate redundancy and easy realization compared to the classic RS(255,239) code and other codes,and their signal to noise ratio gains are respectively 2~3 dB more than that of the RS(255,239)code at the bit error rate of 1×10-13. Finally,the frame structure of the novel consecutive concatenated code is arranged to lay a firm foundation in designing its hardware.

  8. Robotics and remote systems applications

    International Nuclear Information System (INIS)

    This article is a review of numerous remote inspection techniques in use at the Savannah River (and other) facilities. These include: (1) reactor tank inspection robot, (2) californium waste removal robot, (3) fuel rod lubrication robot, (4) cesium source manipulation robot, (5) tank 13 survey and decontamination robots, (6) hot gang valve corridor decontamination and junction box removal robots, (7) lead removal from deionizer vessels robot, (8) HB line cleanup robot, (9) remote operation of a front end loader at WIPP, (10) remote overhead video extendible robot, (11) semi-intelligent mobile observing navigator, (12) remote camera systems in the SRS canyons, (13) cameras and borescope for the DWPF, (14) Hanford waste tank camera system, (15) in-tank precipitation camera system, (16) F-area retention basin pipe crawler, (17) waste tank wall crawler and annulus camera, (18) duct inspection, and (19) deionizer resin sampling

  9. Preparation of actinide targets by electrodeposition

    Science.gov (United States)

    Trautmann, N.; Folger, H.

    1989-10-01

    Actinide targets with varying thicknesses on different substrates have been prepared by electrodeposition either from aqueous solutions or from solutions of their nitrates in isopropyl alcohol. With these techniques the actinides can be deposited almost quantitatively on various backing materials within 15 to 30 min. Targets of thorium, uranium, neptunium, plutonium, americium, curium and californium with areal densities from almost carrier-free up to 1.4 mg/cm 2 on thin beryllium, carbon, titanium, tantalum and platinum foils have been prepared. In most cases, prior to the deposition, the actinides had to be purified chemically and for some of them, due to the limited amount of material available, recycling procedures were required. Applications of actinide targets in heavy-ion reactions are briefly discussed.

  10. An atomic beam source for actinide elements: concept and realization

    International Nuclear Information System (INIS)

    For ultratrace analysis of actinide elements and studies of their atomic properties with resonance ionization mass spectroscopy (RIMS), efficient and stable sources of actinide atomic beams are required. The thermodynamics and kinetics of the evaporation of actinide elements and oxides from a variety of metals were considered, including diffusion, desorption, and associative desorption. On this basis various sandwich-type filaments were studied. The most promising system was found to consist of tantalum as the backing material, an electrolytically deposited actinide hydroxide as the source of the element, and a titanium covering layer for its reduction to the metal. Such sandwich sources were experimentally proven to be well suited for the production of atomic beams of plutonium, curium, berkelium and californium at relatively low operating temperatures and with high and reproducible yields. (orig.)

  11. Environmental assessment of the thermal neutron activation explosive detection system for concourse use at US airports

    International Nuclear Information System (INIS)

    This document is an environmental assessment of a system designed to detect the presence of explosives in checked airline baggage or cargo. The system is meant to be installed at the concourse or lobby ticketing areas of US commercial airports and uses a sealed radioactive source of californium-252 to irradiate baggage items. The major impact of the use of this system arises from direct exposure of the public to scattered or leakage radiation from the source and to induced radioactivity in baggage items. Under normal operation and the most likely accident scenarios, the environmental impacts that would be created by the proposed licensing action would not be significant. 44 refs., 19 figs., 18 tabs

  12. Experimental survey of the potential energy surfaces associated with fission

    International Nuclear Information System (INIS)

    Progress in the experimental determination of the properties of the potential energy surface associated with fission is reviewed. The importance of nuclear symmetry effects on the calculation of fission widths is demonstrated. Evidence is presented for the fragmentation of the mass-asymmetric second barrier in the thorium region and the axial asymmetric first barrier in the californium region. Detailed analyses of experimental data suggest the presence of two parallel second barriers; the normal mass-asymmetric, axial-symmetric barrier and a slightly higher mass-symmetric, axial-asymmetric barrier. Experimental barrier parameters are determined systematically and compared with calculations from various theoretical models. Techniques for expanding fission probability measurements to higher energies are discussed. (author)

  13. Populations of selected microbial and fungal species growing on the surface of rape seeds following treatment with desiccants or plant growth regulators.

    Science.gov (United States)

    Frac, Magdalena; Jezierska-Tys, Stefania; Tys, Jerzy

    2010-01-01

    The aim of this study was to determine the effects of desiccants and plant growth regulators on selected microbial species affecting rape seeds, with special emphasis on the growth of fungi and identification of the genus and species composition. The experimental material in the study was seeds of winter rape cv. Californium that were collected from the field during combine harvest. The chemical agents applied, both desiccants and growth regulators, generally decreased the populations of bacteria occurring on the surface of rape seeds. The responses of fungi depended upon the type of agent applied and were manifested as either stimulation or inhibition of the growth of the fungal species. The fungi isolated from the surface of rape seeds were characteristic of those found in the field environment (Cladosporium and Penicillium) and typical for those present on the surface of rape seeds (Alternaria).

  14. Effects of 252Cf neutrons, transmitted through an iron block on human lymphocyte chromosome

    International Nuclear Information System (INIS)

    Chromosome aberration of human peripheral blood lymphocytes exposed to californium-252 (252Cf) neutrons transmitted through a 15 cm thick iron block was analysed. The spectrum of the filtered neutrons ranged from 0.1 to 2MeV with a peak at 0.7 MeV, simulating the Hiroshima atomic bomb neutron spectrum as shown in the Dosimetry System 1986 (DS86). Chromosome aberration frequencies after exposure to filtered and unfiltered 252Cf radiation were compared. Acentric ring chromosomes were significantly increased (p 0.1). The relative biological effectiveness (RBE) of the neutrons with respect to the formation of dicentrics and centric rings was 10.9 and 12.3 in the filtered and unfiltered conditions respectively, but the difference was not statistically significant. These results provide useful information for the re-evaluation of the biological effect of the Hiroshima atomic bomb radiations. (Author)

  15. Reliability of semiconductor and gas-filled diodes for over-voltage protection exposed to ionizing radiation

    Directory of Open Access Journals (Sweden)

    Stanković Koviljka

    2009-01-01

    Full Text Available The wide-spread use of semiconductor and gas-filled diodes for non-linear over-voltage protection results in a variety of possible working conditions. It is therefore essential to have a thorough insight into their reliability in exploitation environments which imply exposure to ionizing radiation. The aim of this paper is to investigate the influence of irradiation on over-voltage diode characteristics by exposing the diodes to californium-252 combined neutron/gamma radiation field. The irradiation of semiconductor over-voltage diodes causes severe degradation of their protection characteristics. On the other hand, gas-filled over-voltage diodes exhibit a temporal improvement of performance. The results are presented with the accompanying theoretical interpretations of the observed changes in over-voltage diode behaviour, based on the interaction of radiation with materials constituting the diodes.

  16. Potential nuclear safeguards applications for neutron generators

    International Nuclear Information System (INIS)

    Many nuclear safeguards inspection instruments use neutron sources to interrogate the fissile material (commonly 235U and 239Pu) to be measured. The neutron sources currently used in these instruments are isotopics such as Californium-252, Americium-Lithium, etc. It is becoming increasingly more difficult to transport isotopic sources from one measurement location to another. This represents a significant problem for the International Atomic Energy Agency (IAEA) safeguards inspectors because they must take their safeguards instruments with them to each nuclear installation to make an independent measurement. Purpose of this paper is to review the possibility of replacing isotopic neutron sources now used in IAEA safeguards instruments with electric neutron sources such as deuterium-tritium (D-T, 14-MeV neutrons) or deuterium-deuterium (D-D, 2-MeV neutrons). The potential for neutron generators to interrogate spent-light water reactor fuel assemblies in storage pools is also reviewed

  17. Off-line commissioning of EBIS and plans for its integration into ATLAS and CARIBU.

    Science.gov (United States)

    Ostroumov, P N; Barcikowski, A; Dickerson, C A; Mustapha, B; Perry, A; Sharamentov, S I; Vondrasek, R C; Zinkann, G

    2016-02-01

    An Electron Beam Ion Source Charge Breeder (EBIS-CB) has been developed at Argonne to breed radioactive beams from the CAlifornium Rare Isotope Breeder Upgrade (CARIBU) facility at Argonne Tandem Linac Accelerator System (ATLAS). The EBIS-CB will replace the existing ECR charge breeder to increase the intensity and significantly improve the purity of reaccelerated radioactive ion beams. The CARIBU EBIS-CB has been successfully commissioned offline with an external singly charged cesium ion source. The performance of the EBIS fully meets the specifications to breed rare isotope beams delivered from CARIBU. The EBIS is being relocated and integrated into ATLAS and CARIBU. A long electrostatic beam transport system including two 180° bends in the vertical plane has been designed. The commissioning of the EBIS and the beam transport system in their permanent location will start at the end of this year. PMID:26932059

  18. Measurements of the neutron capture cross sections and incineration potentials of minor-actinides in high thermal neutron fluxes: Impact on the transmutation of nuclear wastes

    International Nuclear Information System (INIS)

    This thesis comes within the framework of minor-actinide nuclear transmutation studies. First of all, we have evaluated the impact of minor actinide nuclear data uncertainties within the cases of 241Am and 237Np incineration in three different reactor spectra: EFR (fast), GT-MHR (epithermal) and HI-HWR (thermal). The nuclear parameters which give the highest uncertainties were thus highlighted. As a result of fact, we have tried to reduce data uncertainties, in the thermal energy region, for one part of them through experimental campaigns in the moderated high intensity neutron fluxes of ILL reactor (Grenoble). These measurements were focused onto the incineration and transmutation of the americium-241, the curium-244 and the californium-249 isotopes. Finally, the values of 12 different cross sections and the 241Am isomeric branching ratio were precisely measured at thermal energy point. (author)

  19. Environmental assessment of the thermal neutron activation explosive detection system for concourse use at US airports

    Energy Technology Data Exchange (ETDEWEB)

    Jones, C.G.

    1990-08-01

    This document is an environmental assessment of a system designed to detect the presence of explosives in checked airline baggage or cargo. The system is meant to be installed at the concourse or lobby ticketing areas of US commercial airports and uses a sealed radioactive source of californium-252 to irradiate baggage items. The major impact of the use of this system arises from direct exposure of the public to scattered or leakage radiation from the source and to induced radioactivity in baggage items. Under normal operation and the most likely accident scenarios, the environmental impacts that would be created by the proposed licensing action would not be significant. 44 refs., 19 figs., 18 tabs.

  20. Triton and alpha-particle contribution from LiF converter for neutron dosimeter

    CERN Document Server

    Camacho, M E; Balcazar, M

    1999-01-01

    A personnel neutron dosimeter prototype based on chemical and electrochemical etched CR-39 detector, combined with LiF converter, has been calibrated using an ICRP-like phantom, under a heavy-water moderated Californium source neutron spectra; A conversion factor of 1.052+-126 spots cm sup - sup 2 mSv sup - sup 1 was obtained. The sealing properties of the detector holder showed a ten-fold reduction in radon background when it was tested in a high radon atmosphere. A convenient mechanical shock resistance was achieved in LiF converters by sintering to 11 tons pressure LiF powder at 650 deg. C, during one hour.

  1. Nuclear fission and the transuranium elements

    Energy Technology Data Exchange (ETDEWEB)

    Seaborg, G.T.

    1989-02-01

    Many of the transuranium elements are produced and isolated in large quantities through the use of neutrons furnished by nuclear fission reactions: plutonium (atomic number 94) in ton quantities; neptunium (93), americium (95), and curium (96) in kilogram quantities; berkelium (97) in 100 milligram quantities; californium (98) in gram quantities; and einsteinium (99) in milligram quantities. Transuranium isotopes have found many practical applications---as nuclear fuel for the large-scale generation of electricity, as compact, long-lived power sources for use in space exploration, as means for diagnosis and treatment in the medical area, and as tools in numerous industrial processes. Of particular interest is the unusual chemistry and impact of these heaviest elements on the periodic table. This account will feature these aspects. 9 refs., 5 figs.

  2. Measurements of the neutron capture cross sections and incineration potentials of minor-actinides in high thermal neutron fluxes: Impact on the transmutation of nuclear wastes; Mesures des sections efficaces de capture et potentiels d'incineration des actinides mineurs dans les hauts flux de neutrons: Impact sur la transmutation des dechets

    Energy Technology Data Exchange (ETDEWEB)

    Bringer, O

    2007-10-15

    This thesis comes within the framework of minor-actinide nuclear transmutation studies. First of all, we have evaluated the impact of minor actinide nuclear data uncertainties within the cases of {sup 241}Am and {sup 237}Np incineration in three different reactor spectra: EFR (fast), GT-MHR (epithermal) and HI-HWR (thermal). The nuclear parameters which give the highest uncertainties were thus highlighted. As a result of fact, we have tried to reduce data uncertainties, in the thermal energy region, for one part of them through experimental campaigns in the moderated high intensity neutron fluxes of ILL reactor (Grenoble). These measurements were focused onto the incineration and transmutation of the americium-241, the curium-244 and the californium-249 isotopes. Finally, the values of 12 different cross sections and the {sup 241}Am isomeric branching ratio were precisely measured at thermal energy point. (author)

  3. Study of reproducibility of measurements with the spectrometer of Bonner multispheres

    Energy Technology Data Exchange (ETDEWEB)

    Azevedo, G.A.; Pereira, W.W.; Patrao, K.C.S.; Fonseca, E.S., E-mail: geisadeazevedo@gmail.com, E-mail: walsan@ird.gov.br, E-mail: karla@ird.gov.br, E-mail: evaldo@ird.gov.br [Instituto de Radionprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2013-07-01

    This work aims to study the metrological behavior of the Bonner Multisphere Spectrometer (BMS) of the LN / LNMRI / IRD - Laboratorio Metrologia de Neutrons / Laboratorio Nacional de Metrologia e Radiacao Ionizante / Instituto de Radioprotecao e Dosimetria, for measurements in repeatability and reproducibility conditions. Initially, a simulation was done by applying the Monte Carlo method, using the MCNP code and respecting the ISO 8529-1 (2001), using the sources of Californium ({sup 252} Cf), Americium-Beryllium ({sup 241} AmBe) and californium in heavy water (Cf + D{sub 2}O), all located at a distance of 100 cm from the neutron detector ({sup 6}Li (Eu) - crystal scintillator). In this program, the counting of neutrons that are captured by the detector was made. The source is located in the center of a sphere of radius 300 cm. Analyzes the impact of these neutrons in a point of the sphere wall, which in this case acted as a neutron detector and from there, it is estimated the number of neutrons that collide in the whole sphere. The purpose is to obtain the neutron count for different energy bands in a solid field of neutrons, since they have a spectrum ranging from a low to a high energy that can also vary within a particular environment. Wishes to obtain new fields with different sources and moderators materials to be used as new reference fields. Measurements are being conducted for these fields, with the aim of analyzing the variability conditions of the measurement (repeatability and reproducibility) in LEN - Laboratorio de Espectrometria de Neutrons of the LN/LMNRI/IRD. Thus, the spectrometer will be used to improve both the knowledge of the spectrum as the standard of neutrons of the lab, proving that a spectrometry is essential for correct measurement.

  4. Urinary stone composition in Oman: with high incidence of cystinuria.

    Science.gov (United States)

    Al-Marhoon, Mohammed S; Bayoumi, Riad; Al-Farsi, Yahya; Al-Hinai, Abdullhakeem; Al-Maskary, Sultan; Venkiteswaran, Krishna; Al-Busaidi, Qassim; Mathew, Josephkunju; Rhman, Khalid; Sharif, Omar; Aquil, Shahid; Al-Hashmi, Intisar

    2015-06-01

    Urinary stones are a common problem in Oman and their composition is unknown. The aim of this study is to analyze the components of urinary stones of Omani patients and use the obtained data for future studies of etiology, treatment, and prevention. Urinary stones of 255 consecutive patients were collected at the Sultan Qaboos University Hospital. Stones were analyzed by Fourier transform infrared spectrophotometer. The biochemical, metabolic, and radiological data relating to the patients and stones were collected. The mean age was 41 years, with M:F ratio of 3.7:1. The common comorbidities associated with stone formation were hypertension; diabetes, benign prostate hyperplasia; urinary tract infection; obesity; and atrophic kidney. The common presentation was renal colic and flank pain (96%). Stones were surgically retrieved in 70% of patients. Mean stone size was 9 ± 0.5 mm (range 1.3-80). Stone formers had a BMI ≥ 25 in 56% (P = 0.006) and positive family history of stones in 3.8%. The most common stones in Oman were as follows: Calcium Oxalates 45% (114/255); Mixed calcium phosphates & calcium oxalates 22% (55/255); Uric Acid 16% (40/255); and Cystine 4% (10/255). The most common urinary stones in Oman are Calcium Oxalates. Overweight is an important risk factor associated with stone formation. The hereditary Cystine stones are three times more common in Oman than what is reported in the literature that needs further genetic studies.

  5. Urinary stone composition in Oman: with high incidence of cystinuria.

    Science.gov (United States)

    Al-Marhoon, Mohammed S; Bayoumi, Riad; Al-Farsi, Yahya; Al-Hinai, Abdullhakeem; Al-Maskary, Sultan; Venkiteswaran, Krishna; Al-Busaidi, Qassim; Mathew, Josephkunju; Rhman, Khalid; Sharif, Omar; Aquil, Shahid; Al-Hashmi, Intisar

    2015-06-01

    Urinary stones are a common problem in Oman and their composition is unknown. The aim of this study is to analyze the components of urinary stones of Omani patients and use the obtained data for future studies of etiology, treatment, and prevention. Urinary stones of 255 consecutive patients were collected at the Sultan Qaboos University Hospital. Stones were analyzed by Fourier transform infrared spectrophotometer. The biochemical, metabolic, and radiological data relating to the patients and stones were collected. The mean age was 41 years, with M:F ratio of 3.7:1. The common comorbidities associated with stone formation were hypertension; diabetes, benign prostate hyperplasia; urinary tract infection; obesity; and atrophic kidney. The common presentation was renal colic and flank pain (96%). Stones were surgically retrieved in 70% of patients. Mean stone size was 9 ± 0.5 mm (range 1.3-80). Stone formers had a BMI ≥ 25 in 56% (P = 0.006) and positive family history of stones in 3.8%. The most common stones in Oman were as follows: Calcium Oxalates 45% (114/255); Mixed calcium phosphates & calcium oxalates 22% (55/255); Uric Acid 16% (40/255); and Cystine 4% (10/255). The most common urinary stones in Oman are Calcium Oxalates. Overweight is an important risk factor associated with stone formation. The hereditary Cystine stones are three times more common in Oman than what is reported in the literature that needs further genetic studies. PMID:25805105

  6. RGBEXCEL: AN RGB IMAGE DATA EXTRACTOR AND EXPORTER FOR EXCEL PROCESSING

    Directory of Open Access Journals (Sweden)

    Peter A. Larbi

    2016-02-01

    Full Text Available The objective of this paper was to develop a means of rapidly obtaining RGB image data, as part of an effort to develop a low-cost method of image processing and analysis based on Microsoft Excel. A simple standalone GUI (graphical user interface software application called RGBExcel was developed to extract RGB image data from any colour image files of any format. For a given image file, the output from the software is an Excel file with the data from the R (red, G (green, and B (blue bands of the image contained in different sheets. The raw data and any enhancements can be visualized by using the surface chart type in combination with other features. Since Excel can plot a maximum dimension of 255 by 255 pixels, larger images are downscaled to have a maximum dimension of 255 pixels. Results from testing the application are discussed in the paper.

  7. H2O masers in a jet-driven bow shock: episodic ejection from a massive young stellar object

    Science.gov (United States)

    Burns, R. A.; Handa, T.; Nagayama, T.; Sunada, K.; Omodaka, T.

    2016-07-01

    We report the results of VERA (VLBI Exploration of Radio Astrometry) multi-epoch VLBI (very long baseline interferometry) 22 GHz water maser observations of S255IR-SMA1, a massive young stellar object located in the S255 star-forming region. By annual parallax the source distance was measured as D = 1.78^{+0.12}_{-0.11} kpc and the source systemic motion was (μαcos δ, μδ) = (-0.13 ± 0.20, -0.06 ± 0.27) mas yr-1. Masers appear to trace a U-shaped bow shock whose morphology and proper motions are well reproduced by a jet-driven outflow model with a jet radius of about 6 au. The maser data, in the context of other works in the literature, reveal ejections from S255IR-SMA1 to be episodic, operating on time-scales of ˜1000 yr.

  8. Reed Solomon Coding for Frequency Hopping Spread Spectrum in Jamming Environment

    Directory of Open Access Journals (Sweden)

    Othman Sidek

    2008-01-01

    Full Text Available Frequency hopping spread spectrum with noncoherent M-ary frequency shift keying system is considered. In this study Reed Solomon codes RS (255, 223 are employed in a standard error correction role to provide some Anti-Jamming (AJ capability with 8-bit symbols. Noise has been added to RS encoded data, which is demodulated at RS decoder perfectly. Matlab simulations have been implemented for numerical results. Graphical results have been plotted between the probability of an erasure versus ρ using RS (255, 223 code for 1 and 2 kHz frequencies. The simulation results have proved that system having RS (255, 223 code with M = 32 require substantially less signal to jammer power ratio to achieve the same bit error probability.

  9. H2O masers in a jet-driven bowshock: Episodic ejection from a massive young stellar object

    CERN Document Server

    Burns, R A; Nagayama, T; Sunada, K; Omodaka, T

    2016-01-01

    We report the results of VERA multi-epoch VLBI 22 GHz water maser observations of S255IR-SMA1, a massive young stellar object located in the S255 star forming region. By annual parallax the source distance was measured as D = 1.78 +-0.12 kpc and the source systemic motion was (u alpha cos d, u d) = (-0.13 +- 0.20, -0.06 +- 0.27) mas yr-1. Masers appear to trace a U-shaped bow shock whose morphology and proper motions are well reproduced by a jet-driven outflow model with a jet radius of about 6 AU. The maser data, in the context of other works in the literature, reveal ejections from S255IR-SMA1 to be episodic, operating on timescales of ~1000 years.

  10. Two-Pipe Chilled Beam System for Both Cooling and Heating of Office Buildings

    OpenAIRE

    Afshari, Alireza; Gordnorouzi, Rouzbeh; Hultmark, Göran; Bergsøe, Niels Christian

    2013-01-01

    Simulations were performed to compare a conventional 4-pipe chilled beam system and a 2-pipe chilled beam system. The objective was to establish requirements, possibilities and limitations for a well-functioning 2-pipe chilled beam system for both cooling and heating of office buildings. The building model had a net volume of 3669 m3, (L*B: 25.5m*11.5 m) and net ceiling height of 2.55 m. The building model was assumed to consist of 78 office rooms, 6 meeting rooms and 5 corridors with a 50% o...

  11. High-output-power deep ultraviolet light-emitting diode assembly using direct bonding

    Science.gov (United States)

    Ichikawa, Masatsugu; Fujioka, Akira; Kosugi, Takao; Endo, Shinya; Sagawa, Harunobu; Tamaki, Hiroto; Mukai, Takashi; Uomoto, Miyuki; Shimatsu, Takehito

    2016-07-01

    We fabricated high-output-power 255 and 280 nm light-emitting diodes (LEDs) using direct bonding. The LED chips were bonded to sapphire lenses at room temperature using either atomic diffusion bonding or surface-activated bonding. The LEDs with lenses had a higher light extraction efficiency than conventionally structured LEDs. As a result, at a forward current of 350 mA, the output power of the 255 nm LED increased by a factor of 2.8, reaching 73.6 mW, while that of the 280 nm LED increased by a factor of 2.3, reaching 153 mW.

  12. Possible Location of Gaspar Dias Fort in Relation to the Present River Bank

    Digital Repository Service at National Institute of Oceanography (India)

    Mascarenhas, A.; Tripati, S.; ManiMurali, R.

    ) Charts 1970 325 295 1986 250 220 2003 330 300 2007 375 345 IRS Satellite Imageries / sensor 1973, LANDSAT MSS 285 255 1975, LANDSAT MSS 320 290 1989, LANDSAT TM 304 274 1997, IRS LISS III 326 296 1999, IRS LISS III 296 266 2001, IRS LISS... III 304 274 2003, IRS LISS III 308 278 2006, IRS LISS III 318 288 2008, IRS LISS III 300 270 2011, IRS LISS III 294 264 Google Earth Images 04 Dec 2002 274-280 250 05 Feb 2003 280-285 255 13 Dec 2003 300-308 278 07 Jan 2005 321-342 312 17...

  13. About a new Smarandache-type sequence

    OpenAIRE

    Biro, Csaba

    1997-01-01

    The computers can operate with 256 characters and all of them has an ASCII code which is an integer from 0 to 255. If you press ALT key and you type a number, the character of the number will appear. But if you type a number that is greater than 255, the computer will calculate the remainder after division by 256, and the corresponding character will appear. "Can you show each character by pressing the same number key k-times?"

  14. Drug: D07473 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D07473 Drug Atomoxetine (INN); Tomoxetine C17H21NO 255.1623 255.3547 D07473.gif Ant...TROPICS N06BA Centrally acting sympathomimetics N06BA09 Atomoxetine D07473 Atomoxetine (INN) USP drug classi...ty Disorder Agents, Non- amphetamines Atomoxetine D07473 Atomoxetine (INN) Target-based classification of dr...ugs [BR:br08310] Transporters Solute carrier family SLC6 SLC6A2 (noradrenalin transporter) [HSA:6530] [KO:K05035] Atom...oxetine [ATC:N06BA09] D07473 Atomoxetine (INN) CAS: 83015-26-3 PubChem:

  15. The Development of Neutron Radiography and Tomography on a SLOWPOKE-2 Reactor

    Science.gov (United States)

    Bennett, L. G. I.; Lewis, W. J.; Hungler, P. C.

    Development of neutron radiography at the Royal Military College of Canada (RMC) started by trying to interest the Royal Canadian Air Force (RCAF) in this new non-destructive testing (NDT) technique. A Californium-252 based device was ordered and then installed at RMC for development of applicable techniques for aircraft by the first author. A second and transportable device was then designed, modified and used in trials at RCAF Bases and other locations for one year. This activity was the only foreign loan of the U.S. Californium Loan Program. Around this time, SLOWPOKE-2 reactors were being installed at four Canadian universities, while a new science and engineering building was being built at RMC. A reactor pool was incorporated and efforts to procure a reactor succeeded a decade later with a SLOWPOKE-2 reactor being installed at RMC. The only modification by the vendor for RMC was a thermal column replacing an irradiation site inside the reactor container for a later installation of a neutron beam tube (NBT). Development of a working NBT took several years, starting with the second author. A demonstration of the actual worth of neutron radiography took place with a CF-18 Hornet aircraft being neutron and X-radiographed at McClellan Air Force Base, Sacramento, CA. This inspection was followed by one of the rudders that had indications of water ingress being radiographed successfully at RMC just after the NBT became functional. The next step was to develop a neutron radioscopy system (NRS), initially employing film and then digital imaging, and is in use today for all flight control surfaces (FCS). With the third author, a technique capable of removing water from affected FCS was developed at RMC. Heating equipment and a vacuum system were utilized to carefully remove the water. This technique was proven using a sequence of near real time neutron images obtained during the drying process. The results of the drying process were correlated with a relative humidity

  16. Factors Affecting the Effectiveness and Use of Moodle: Students' Perception

    Science.gov (United States)

    Damnjanovic, Vesna; Jednak, Sandra; Mijatovic, Ivana

    2015-01-01

    The purpose of this research paper is to identify the factors affecting the effectiveness of Moodle from the students' perspective. The research hypotheses derived from the suggested extended Seddon model have been empirically validated using the responses to a survey on e-learning usage among 255 users. We tested the model across higher education…

  17. A Critique of Mark D. Allen's "The Preservation of Verb Subcategory Knowledge in a Spoken Language Comprehension Deficit"

    Science.gov (United States)

    Kemmerer, David

    2008-01-01

    Allen [Allen, M. (2005). "The preservation of verb subcategory knowledge in a spoken language comprehension deficit." "Brain and Language, 95", 255-264.] reports a single patient, WBN, who, during spoken language comprehension, is still able to access some of the syntactic properties of verbs despite being unable to access some of their semantic…

  18. Reconstruction of the variability of the southwest monsoon during the past 3 ka, from the continental margin of the southeastern Arabian Sea

    Digital Repository Service at National Institute of Oceanography (India)

    Chauhan, O.S.; Vogelsang; Basavaiah, N.; Kader, U.S.A.

    . Sci., vol.25(5); 2010; 798-807 Reconstruction of the variability of SW monsoon during the past 3 Ka from the continental margin of the South Eastern Arabian Sea Onkar S. Chauhan 1 , Elke Vogelsang 2 , Nathani Basavaiah 3 , U. Syed Abdul Kader 1...

  19. Full-field hard x-ray microscopy with interdigitated silicon lenses

    DEFF Research Database (Denmark)

    Simons, Hugh; Stöhr, Frederik; Michael-Lindhard, Jonas;

    2016-01-01

    -manufacturing processes available to silicon, we show that it is possible to overcome the inherent inefficiencies of silicon-based optics and interdigitated geometries. As a proof-of-concept of Si-based interdigitated objectives, we demonstrate a prototype interdigitated lens with a resolution of ≈255 nm at 17 keV....

  20. Inhibitory Control in Preschool Predicts Early Math Skills in First Grade: Evidence from an Ethnically Diverse Sample

    Science.gov (United States)

    Ng, Florrie Fei-Yin; Tamis-LeMonda, Catherine; Yoshikawa, Hirokazu; Sze, Irene Nga-Lam

    2015-01-01

    Preschoolers' inhibitory control and early math skills were concurrently and longitudinally examined in 255 Chinese, African American, Dominican, and Mexican 4-year-olds in the United States. Inhibitory control at age 4, assessed with a peg-tapping task, was associated with early math skills at age 4 and predicted growth in such skills from…

  1. 工作站、各种应用的计算机系统、信息系统、管理信息系统

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    IELDVD068:9870 0607715 2005年IEEE分布式系统与网络政策会议录=2005 IEEE International Workshop on Policies for Distributed Systems and Networks[会,英]/IEEE Computer Soci ety.-P.255(E)

  2. Motor Profile of Portuguese Preschool Children on the Peabody Developmental Motor Scales-2: A Cross-Cultural Study

    Science.gov (United States)

    Saraiva, Linda; Rodrigues, Luis P.; Cordovil, Rita; Barreiros, Joao

    2013-01-01

    This study was designed to examine the cultural sensitivity of the PDMS-2 for Portuguese preschool children aged 36-71 months. A total of 540 children (255 males and 285 females) from 15 public preschools of Viana do Castelo, Portugal, were assessed. Age and gender effects in motor performance were examined. Results indicated that PDMS-2 is valid…

  3. ECCS used in DIDO and PLUTO

    International Nuclear Information System (INIS)

    DIDO and PLUTO are heavy water tank-type reactors with power levels of 25.5 MW. Measures are described that protect against failure of the smaller pipes in the primary system, and more importantly. against weld failure at the junction to a large pipe rather than in the small pipe itself. (author). 1 ref., 2 figs

  4. A role for coding functional variants in HNF4A in type 2 diabetes susceptibility

    DEFF Research Database (Denmark)

    Jafar-Mohammadi, B; Groves, C J; Gjesing, A P;

    2011-01-01

    Rare mutations in the gene HNF4A, encoding the transcription factor hepatocyte nuclear factor 4a (HNF-4A), account for ~5% of cases of MODY and more frequent variants in this gene may be involved in multifactorial forms of diabetes. Two low-frequency, non-synonymous variants in HNF4A (V255M, minor...

  5. Cognitive Ability Is Associated with Different Outcome Trajectories in Autism Spectrum Disorders

    Science.gov (United States)

    Ben-Itzchak, Esther; Watson, Linda R.; Zachor, Ditza A.

    2014-01-01

    Variability in clinical expression and in intervention outcome has been described in autism spectrum disorder (ASD). The study examined progress after 1 and 2 years of intervention and compared the impact of baseline cognitive ability on outcome trajectories in 46 children (m = 25.5 months) with ASD. The entire group showed a gradual decrease in…

  6. Population and forensic data for three sets of forensic genetic markers in four ethnic groups from Iran

    DEFF Research Database (Denmark)

    Poulsen, Lena; Farzad, Maryam Sharafi; Børsting, Claus;

    2015-01-01

    A total of 255 individuals (Persians, Lurs, Kurds and Azeris) from Iran were typed for three sets of forensic genetic markers with the NGM SElect™, DIPplex(®) and Argus X-12 kits. Statistically significant deviations (P≤0.002) from Hardy-Weinberg expectations were observed for the insertion...

  7. Self-Harm Experiences among Hispanic and Non-Hispanic White Young Adults

    Science.gov (United States)

    Croyle, Kristin L.

    2007-01-01

    Very little research exists on self-harm in Hispanic populations, although there is a strong literature that addresses suicidality in Hispanics. This study compares self-reported rates of self-harm in 255 non-Hispanic White (NHW) and 187 Hispanic (predominantly Mexican American) undergraduate students. Results indicated that self-harm is…

  8. Immunity

    Institute of Scientific and Technical Information of China (English)

    1997-01-01

    970239 The effect of interleukin 6 against cytopeniaand suppressed phagocytosis of macrophage caused bychemotherapy. ZHANG Lichao(张利朝), et al.Tangdu Hosp, 4th Milit Med Univ, Xian, 710038. ChinJ Clin Oncol 1997; 24(4): 252-255. Objective: To explore The effect of interleukin 6against cytopenia and suppressed phagocytosis ofmacrophage caused by chemotherapy. Methods:Inter-

  9. Elongational viscosity of multiarm (Pom-Pom) polystyrene

    DEFF Research Database (Denmark)

    Nielsen, Jens Kromann; Rasmussen, Henrik K.; Almdal, Kristoffer;

    2006-01-01

    Two branched narrow molar mass distribution polystyrene melts have been synthesized: A multiarm A_nAA_n Pom-Pom polystyrene and AA_n asymmetric star polystyrene where n indicates the number of arms. The Pom-Pom and asymmetric star have molar masses 260 kg/mol and 255 kg/mol, respectively. The Pom...

  10. Dicty_cDB: Contig-U12288-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available onomously Replicating Sequence(ARS) of pLLE1. 36 3.2 3 ( X51832 ) Lentinus edodes m...nome. 32 3.0 15 ( AE009951 ) Fusobacterium nucleatum subsp. nucleatum ATCC 255... 34 3.2 19 ( E06069 ) Aut

  11. Food consumption patterns and their effect on water requirement in China

    NARCIS (Netherlands)

    Liu, J.; Savenije, H.H.G.

    2008-01-01

    It is widely recognized that food consumption patterns significantly impact water requirements. The aim of this paper is to quantify how food consumption patterns influence water requirements in China. The findings show that per capita water requirement for food (CWRF) has increased from 255 m3 cap-

  12. The Role of Self-Compassion and Emotional Approach Coping in the Relationship between Maladaptive Perfectionism and Psychological Distress among East Asian International Students

    Science.gov (United States)

    Seo, Heweon

    2012-01-01

    This study investigated the mediating and moderating roles of self-compassion and emotional approach coping in the relationship between maladaptive perfectionism and psychological distress among East Asian international students. Data were collected through an online survey completed by 255 East Asian international students in a large public…

  13. Boron reinforced composites. 1976-April 1980 (citations from the NTIS Data Base). Report for 1976-April 1980

    Energy Technology Data Exchange (ETDEWEB)

    Cavagnaro, D.M.

    1980-05-01

    The bibliography cites Federally-funded research on boron fibers and boron compounds used as reinforcing material in composites. Included are studies on fabrication, testing, uses, and structural and mechanical properties. (This updated bibliography contains 255 abstracts, 19 of which are new entries to the previous edition.)

  14. Comparative Evaluation of the Novel bioNexia Legionella Test with the BinaxNOW Legionella Card Assay and the Sofia Legionella FIA Assay for Detection of Legionella pneumophila (Serogroup 1) Antigen in Urine Samples.

    Science.gov (United States)

    Congestrì, Francesco; Crepaldi, Elisabetta; Gagliardi, Marina; Pedna, Maria Federica; Sambri, Vittorio

    2016-04-01

    A new immunochromatographic test (bioNexiaLegionella; bioMérieux) for the detection ofLegionella pneumophilaurinary antigen was evaluated in 255 urine samples. The results were compared with those obtained by the BinaxNOW and SofiaLegionellatests. The novel test compared well with those currently in use. PMID:26865691

  15. Vocational Exploration in Middle School: Motivational Characteristics of Students and Perceptions of the Learning Climate

    Science.gov (United States)

    Duchesne, Stephane; Mercier, Adeline; Ratelle, Catherine F.

    2012-01-01

    The goal of this study was twofold: first, to identify vocational exploration profiles in the second year of middle school (Grade 8), and second, to distinguish these profiles in terms of sociomotivational variables. The sample included 521 students (255 boys, 266 girls) attending middle schools in Quebec. Results revealed three vocational…

  16. Hβ photometry of northern intermediate galactic latitude early-type stars and galactic structure away from the plane

    International Nuclear Information System (INIS)

    Photoelectric Hβ photometry is presented for 255 early-type stars at intermediate galactic latitudes. Absolute magnitudes and distances are derived for the more luminous stars. Those with Msub(v) =< -2.5 and at distances of up to 1 kpc from the galactic plane, may follow spiral structure in the plane. (author)

  17. Traditional Chinese Medicine

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    2010150 A prospective multicenter randomized double-blinded controlled clinical trial on effects of Tiantai No. 1 in treating mild cognitive impairment. WU Zhengzhi(吴正治),et al. Shenzhen Hosp,Southern Med Univ,Guangdong 518035.Chin J Integr Tradit & West Med 2010;30(3):255-258.

  18. Solomon Islands Botany

    NARCIS (Netherlands)

    Steenis, van C.G.G.J.

    1969-01-01

    A discussion of the Results of the Royal Society Expedition to the British Solomon Islands Protectorate, 1965. Organized by E.J.H. Corner. Phil. Trans. R. Soc. B 255 (1969) 185-631, 196 fig. University Printing House, Shaftesbury Road, Cambridge. Obtainable through booksellers or direct to the Royal

  19. Disease: H00860 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available 70] [KO:K15225] ICD-10: G25.5 MeSH: D002819 OMIM: 118700 PMID:19501334 (description, gene) Gilbert DL Acute and chronic chorea in chi...ldhood. Semin Pediatr Neurol 16:71-6 (2009) PMID:21292530 (description, gene) Inzel

  20. HEARING-LOSS AND THE MAYER-ROKITANSKY-KUSTER-HAUSER SYNDROME

    NARCIS (Netherlands)

    STRUBBE, EH; CREMERS, CWRJ; DIKKERS, FG; WILLEMSEN, WNP

    1994-01-01

    The hearing of 51 female patients with the Mayer-Rokitansky-Kuster-Hauser syndrome was examined using otoscopy and standard audiometry. A unilateral or bilateral hearing loss of more than 15 dB Fletcher index was found in 13 of 51 (25.5%). Four of these 13 patients had a hearing loss of less than 20

  1. Experiment list: SRX287024 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available 5 GSM1150337: ChIPseq Ptf1a Tel 1 control; Mus musculus; ChIP-Seq source_name=E12.5 Telencephalon || develop...mental stage=E12.5 || strain=ICR || antibody=Lab generated rabbit anti-Ptf1a (AN255/256) || tissue=Telenceph

  2. Drug: D04688 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D04688 Mixture, Drug Tribenoside - lidocaine mixt; Borraza-G (TN) Tribenoside [DR:D01095], Lidocai... 2 Agents affecting individual organs 25 Urogenital and anal organ agents 255 Hemorrhoidal preparations 2559 Others D04688 Tribenoside - lidocaine mixt PubChem: 17398139 ...

  3. Evidences for a Paleocene marine incursion in southern Amazonia (Madre de Dios Sub-Andean Zone, Peru)

    NARCIS (Netherlands)

    Louterbach, M.; Roddaz, M.; Bailleul, J.; Antoine, P.O.; Adnet, S.; Kim, J.H.; van Soelen, E.E.; Parra, F.; Gérard, J.; Calderon, Y.; Gagnaison, C.; Sinninghe Damsté, J.S.; Baby, P.

    2014-01-01

    This article presents new biostratigraphic dating, facies analysis, organic geochemical data and Nd–Sr isotopic provenance from five outcrops of southern Amazonia (MD-85, MD-177 MD-184, MD-255 and MD-256) to document for the first time the presence of a shallow marine ingression in the Paleocene of

  4. Race without Racism: How Higher Education Researchers Minimize Racist Institutional Norms

    Science.gov (United States)

    Harper, Shaun R.

    2012-01-01

    This article analyzes 255 articles published in seven peer-reviewed journals over a 10-year period and presents examples of how higher education researchers undertake the study of campus racial climates; racial differences in access, outcomes, and attainment; and the experiences of students, faculty, and administrators of color on predominantly…

  5. Chikungunya risk assessment for europe: recommendations for action

    NARCIS (Netherlands)

    Depoortere, E.; Coulombier, D.; Boutin, J.P.; Brooker, S.; Valk, de H.; Dieckmann, S.; Fontenille, D.; Gould, E.; Nathan, M.; Nilsson, M.; Schaffner, F.; Sonnenburg, von F.; Takken, W.

    2006-01-01

    Since March 2005, 255 000 cases of chikungunya fever are estimated to have occurred on the island of Réunion, a French overseas department in the Indian Ocean [1]. An huge increase in estimated cases occurred at the end of December 2005, culminating in an estimated peak incidence of more than 40 000

  6. 14 CFR 234.9 - Reporting of on-time performance codes.

    Science.gov (United States)

    2010-01-01

    ... (AVIATION PROCEEDINGS) ECONOMIC REGULATIONS AIRLINE SERVICE QUALITY PERFORMANCE REPORTS § 234.9 Reporting of... deliver, or arrange to have delivered, to each system vendor, as defined in 14 CFR part 255, the on-time... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Reporting of on-time performance codes....

  7. AcEST: BP918617 [AcEST

    Lifescience Database Archive (English)

    Full Text Available quitin-protein ligase PIB1 OS=Sacchar... 32 0.99 sp|O31474|YCGJ_BACSU Uncharacter... -2 Query: 103 CIDNLSP*RQPLTLICVPVRHFKCLRNW 20 C +N+ P + L C+ V H+KC++NW Sbjct: 228 CFENMEPGEKVGRLECLCVFHYKCIKNW 255 >sp|O31474|YCGJ

  8. 78 FR 32169 - Facilitating the Deployment of Text-to-911 and Other Next Generation 911 Applications

    Science.gov (United States)

    2013-05-29

    .... 11-153, PS Docket No. 10- 255, Further Notice of Proposed Rulemaking, 27 FCC Rcd 15659, 78 FR 1799.../IBQTable?_bm=y&-fds_name=EC0700A1&-geo_id=&-_skip=600&-ds_name=EC0751SSSZ5&-_lang=en . Incumbent Local...\\ See Letter to Amy Zoslov, Chief, Auctions and Industry Analysis Division, Wireless...

  9. Comparing Written Competency in Core French and French Immersion Graduates

    Science.gov (United States)

    Lappin-Fortin, Kerry

    2014-01-01

    Few studies have compared the written competency of French immersion students and their core French peers, and research on these learners at a postsecondary level is even scarcer. My corpus consists of writing samples from 255 students from both backgrounds beginning a university course in French language. The writing proficiency of core French…

  10. Racial and Ego Identity Development in Black Caribbean College Students

    Science.gov (United States)

    Sanchez, Delida

    2013-01-01

    This study explored the relationships between racial identity attitudes and ego identity statuses among 255 Black Caribbean college students in the Northeast United States. Findings indicated that racial identity attitudes were predictive of ego identity statuses. Specifically, preencounter racial identity attitudes were predictive of lower scores…

  11. Association between age at menarche and early-life nutritional status in rural Bangladesh

    NARCIS (Netherlands)

    Bosch, A.M.; Willekens, F.J.C.; Baqui, A.H.; van Ginneken, J.K.S.; Hutter, I.

    2008-01-01

    Age at menarche is associated with anthropometry in adolescence. Recently, there has been growing support for the hypothesis that timing of menarche may be set early in life but modified by changes in body size and composition in childhood. To evaluate this, a cohort of 255 girls aged

  12. Final report: Waterfowl activity and habitat use on the Swan Lake HREP Site

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — We studied diurnal activity and habitat use patterns of waterfowl on Swan Lake in Calhoun County, IL during fall and spring migrations 1992-93. Swan Lake, a 1,255...

  13. InterPro search result: AK103751 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK103751 J033142O15 IPR008921 DNA polymerase III clamp loader subunit, C-terminal s...uperfamily SSF48019 DNA polymerase III clamp loader subunits, C-terminal domain T255-347 1e-10 ...

  14. InterPro search result: AK059559 [KOME

    Lifescience Database Archive (English)

    Full Text Available AK059559 001-029-G11 IPR008921 DNA polymerase III clamp loader subunit, C-terminal ...superfamily SSF48019 DNA polymerase III clamp loader subunits, C-terminal domain T255-347 1e-10 ...

  15. 42 CFR 435.139 - Coverage for certain aliens.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Coverage for certain aliens. 435.139 Section 435... Aliens § 435.139 Coverage for certain aliens. The agency must provide services necessary for the treatment of an emergency medical condition, as defined in § 440.255(c) of this chapter, to those...

  16. 42 CFR 436.330 - Coverage for certain aliens.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Coverage for certain aliens. 436.330 Section 436... Coverage of the Medically Needy § 436.330 Coverage for certain aliens. If an agency provides Medicaid to... condition, as defined in § 440.255(c) of this chapter to those aliens described in § 436.406(c) of...

  17. 42 CFR 436.128 - Coverage for certain qualified aliens.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Coverage for certain qualified aliens. 436.128... Mandatory Coverage of the Categorically Needy § 436.128 Coverage for certain qualified aliens. The agency... § 440.255(c) of this chapter to those aliens described in § 436.406(c) of this subpart....

  18. 42 CFR 435.350 - Coverage for certain aliens.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 4 2010-10-01 2010-10-01 false Coverage for certain aliens. 435.350 Section 435... ISLANDS, AND AMERICAN SAMOA Optional Coverage of the Medically Needy § 435.350 Coverage for certain aliens... treatment of an emergency medical condition, as defined in § 440.255(c) of this chapter, to those...

  19. 75 FR 42455 - Novartis Pharmaceuticals Corp. et al.; Withdrawal of Approval of 27 New Drug Applications and 58...

    Science.gov (United States)

    2010-07-21

    ... Capsules ANDA 61-016 Terra-Cortril (hydrocortisone acetate Do. and oxytetracycline HCl) ANDA 61-410 Veetids... (diatrizoate sodium) GE Healthcare, Inc., 101 Carnegie Center, Princeton, NJ 08540 NDA 9-658 Hydrocortisone...-255 Meticortelone (prednisolone acetate) Schering Corp., Galloping Hill Rd., Injection and...

  20. Pick-N Multiple Choice-Exams: A Comparison of Scoring Algorithms

    Science.gov (United States)

    Bauer, Daniel; Holzer, Matthias; Kopp, Veronika; Fischer, Martin R.

    2011-01-01

    To compare different scoring algorithms for Pick-N multiple correct answer multiple-choice (MC) exams regarding test reliability, student performance, total item discrimination and item difficulty. Data from six 3rd year medical students' end of term exams in internal medicine from 2005 to 2008 at Munich University were analysed (1,255 students,…

  1. An Empirically-Based Statewide System for Identifying Quality Pre-Kindergarten Programs

    Science.gov (United States)

    Williams, Jeffrey M.; Landry, Susan H.; Anthony, Jason L.; Swank, Paul R.; Crawford, April D.

    2012-01-01

    This study presents an empirically-based statewide system that links information about pre-kindergarten programs with children's school readiness scores to certify pre-kindergarten classrooms as promoting school readiness. Over 8,000 children from 1,255 pre-kindergarten classrooms were followed longitudinally for one year. Pre-kindergarten quality…

  2. Effekten af cellebehandling hos patienter med kronisk iskæmisk hjertesygdom

    DEFF Research Database (Denmark)

    Mathiasen, Anders Bruun; Qayyum, Abbas Ali; Kastrup, Jens

    2015-01-01

    The present Cochrane review included 23 studies randomized placebo-controlled clinical trials with a total of 1,255 patients. The effect of autologous cell therapy versus placebo was examined on left ventricular ejection fraction (LVEF), adverse effects and mortality in patients with chronic isch...

  3. Effekten af cellebehandling hos patienter med kronisk iskæmisk hjertesygdom--en gennemgang af et Cochranereview

    DEFF Research Database (Denmark)

    Mathiasen, Anders Bruun; Qayyum, Abbas Ali; Kastrup, Jens

    2015-01-01

    The present Cochrane review included 23 studies randomized placebo-controlled clinical trials with a total of 1,255 patients. The effect of autologous cell therapy versus placebo was examined on left ventricular ejection fraction (LVEF), adverse effects and mortality in patients with chronic isch...

  4. 77 FR 62518 - Submission for OMB Review; Comment Request (30-Day FRN); Prostate, Lung, Colorectal and Ovarian...

    Science.gov (United States)

    2012-10-15

    ...); Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial (PLCO) (NCI) SUMMARY: Under the provisions of...: Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO), OMB No: 0925-0407, Expiration Date 9... ovarian cancer can reduce mortality from these cancers which currently cause an estimated 255,700...

  5. High quality crystalline silicon surface passivation by combined intrinsic and n-type hydrogenated amorphous silicon

    NARCIS (Netherlands)

    Schuttauf, J.A.; van der Werf, C.H.M.; Kielen, I.M.; van Sark, W.G.J.H.M.; Rath, J.K.

    2011-01-01

    We investigate the influence of thermal annealing on the passivation quality of crystalline silicon (c-Si) surfaces by intrinsic and n-type hydrogenated amorphous silicon (a-Si:H) films. For temperatures up to 255 C, we find an increase in surface passivation quality, corresponding to a decreased da

  6. 21 CFR 137.280 - Bolted yellow corn meal.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false Bolted yellow corn meal. 137.280 Section 137.280... Flours and Related Products § 137.280 Bolted yellow corn meal. Bolted yellow corn meal conforms to the definition and standard of identity prescribed by § 137.255 for bolted white corn meal except that...

  7. Main: ATRICHPSPETE [PLACE

    Lifescience Database Archive (English)

    Full Text Available ATRICHPSPETE S000248 11-Oct-1999 (last modified) kehi A/T-rich sequences found in pe...a (P.s.) plastocyanin gene (petE) promoter; Act as quantitative enhancer; Found at -289 to -255 of pea PetE... gene; A/T-rich; AT-rich; AT rich; enhancer; pea (Pisum sativum) AATATACTAGTATTATTTACTAAAAAAAATC ...

  8. Protein (Cyanobacteria): 199795 [PGDBj - Ortholog DB

    Lifescience Database Archive (English)

    Full Text Available HREVVCLLGASGCGKSSLLMAIAGLKSANKGQIYLEGRPLTSPHPQIGLVFQQAALLPWLSVRQNIGFGLQFTRMDSLSKAELESRINLAITSVNLDKFEQAYPHQLS...ZP_06305797.1 1117:3837 1161:255 1162:536 244599:33 668331:33 533247:33 Nitrate tra...nsport ATP-binding subunits C and D Raphidiopsis brookii D9 MDYHTTVTRSRLTSVGSEPLLKVEGLQMNYKTRRGTYTAFANINLDVC

  9. Students’ anticipated situational engagement : the roles of teacher behaviour, personal engagement, and gender

    NARCIS (Netherlands)

    Thijs, J.T.; Verkuyten, M.J.A.M.

    2009-01-01

    Among 9th-grade students (248 girls, 255 boys) from a large multiethnic school, the authors examined 2 aspects of anticipated situational engagement in relation to 3 types of hypothetical teacher behavior: authoritarian, authoritative, permissive. Furthermore, the authors investigated the moderating

  10. 40 CFR 256.63 - Requirements for public participation in the permitting of facilities.

    Science.gov (United States)

    2010-07-01

    ... solid waste disposal facility the State shall hold a public hearing to solicit public reaction and... interest in the proposed permit. (b) This hearing shall be held in accord with 40 CFR 25.5. ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Requirements for public...

  11. 77 FR 60731 - Notice of Applications for Deregistration Under Section 8(f) of the Investment Company Act of 1940

    Science.gov (United States)

    2012-10-04

    .... On July 26, 2012, each applicant made a liquidating distribution to its shareholders, based on net..., made final distributions to shareholders based on net asset value. Expenses of $94,356, $276,255, $11... distribution to its shareholders based on net asset value. Expenses of approximately $176,460 and...

  12. Polymorphisms in endothelial nitric oxide synthase (eNOS) and vascular endothelial growth factor (VEGF) predict sunitinib-induced hypertension

    NARCIS (Netherlands)

    Eechoute, K.; Veldt, A.A. van der; Oosting, S.; Kappers, M.H.; Wessels, J.A.M.; Gelderblom, H.; Guchelaar, H.J.; Reyners, A.K.; Herpen, C.M. van; Haanen, J.B.; Mathijssen, R.H.; Boven, E.

    2012-01-01

    Hypertension is an important side effect of sunitinib treatment. In a retrospective study in 255 patients, single-nucleotide polymorphisms (SNPs) in vascular endothelial growth factor A (VEGFA), vascular endothelial growth factor receptor (VEGFR)-2, endothelin-1 (ET-1), and endothelium-derived nitri

  13. Polymorphisms in Endothelial Nitric Oxide Synthase (eNOS) and Vascular Endothelial Growth Factor (VEGF) Predict Sunitinib-Induced Hypertension

    NARCIS (Netherlands)

    Eechoute, K.; van der Veldt, A. A. M.; Oosting, S.; Kappers, M. H. W.; Wessels, J. A. M.; Gelderblom, H.; Guchelaar, H-J; Reyners, A. K. L.; van Herpen, C. M. L.; Haanen, J. B.; Mathijssen, R. H. J.; Boven, E.

    2012-01-01

    Hypertension is an important side effect of sunitinib treatment. In a retrospective study in 255 patients, single-nucleotide polymorphisms (SNPs) in vascular endothelial growth factor A (VEGFA), vascular endothelial growth factor receptor (VEGFR)-2, endothelin-1 (ET-1), and endothelium-derived nitri

  14. Sex and Discipline Differences in Empathising, Systemising and Autistic Symptomatology: Evidence from a Student Population

    Science.gov (United States)

    Carroll, Julia M.; Chiew, Kin Yung

    2006-01-01

    Baron-Cohen's [(2002) "Trends in Cognitive Sciences," 6, 248-255] "extreme male brain" theory of autism is investigated by examining the relationships between theory of mind, central coherence, empathising, systemising and autistic-like symptomatology in typical undergraduates. There were sex differences in the expected directions on all tasks.…

  15. Parental Involvement, Children's Aspirations, and Achievement in New Immigrant Families

    Science.gov (United States)

    Jung, Eunjoo; Zhang, Yue

    2016-01-01

    The authors investigated the relationships among multiple aspects of parental involvement (English proficiency, school involvement, control and monitoring of children), children's aspirations, and achievement in new immigrant families in the United States. They used data on immigrant parents and school-age children (N = 1,255) from the New…

  16. 77 FR 24427 - Standards for Business Practices and Communication Protocols for Public Utilities

    Science.gov (United States)

    2012-04-24

    ... Energy Regulatory Commission 18 CFR Part 38 Standards for Business Practices and Communication Protocols... into the Commission's regulations.\\8\\ \\7\\ See Standards for Business Practices and Communication.... 676-A, 116 FERC ] 61,255 (2006). \\8\\ Standards for Business Practices and Communication Protocols...

  17. Protein cold adaptation : Role of physico-chemical parameters in adaptation of proteins to low temperatures

    NARCIS (Netherlands)

    Shokrollahzade, Soheila; Sharifi, Fatemeh; Vaseghi, Akbar; Faridounnia, Maryam; Jahandideh, Samad

    2015-01-01

    During years 2007 and 2008, we published three papers (Jahandideh, 2007a, JTB, 246, 159-166; Jahandideh, 2007b, JTB, 248, 721-726; Jahandideh, 2008, JTB, 255, 113-118) investigating sequence and structural parameters in adaptation of proteins to low temperatures. Our studies revealed important featu

  18. Case note: ECLI:NL:CRVB:2014:3733 : AB/2015/94

    NARCIS (Netherlands)

    Tollenaar, Albertjan

    2015-01-01

    Zoals de Raad eerder heeft overwogen (uitspraak van 1 mei 2013, ECLI:NL:CRVB:2013:BZ9635 , AB 2013/255 ) dient het Zorgkantoor de discretionaire bevoegdheid om pgb’s lager vast te stellen uit te oefenen met inachtneming van het geschreven en het ongeschreven recht, daaronder begrepen de in artikel 3

  19. 46 CFR Appendix III to Part 390 - U.S. Department of Transportation, Maritime Administration-Sample Semiannual Report

    Science.gov (United States)

    2010-10-01

    ... shares, Southern California National Bank, trust account No. 358-21 625 725 Energy Co., Inc.—1st preferred, 4,100 shares, Southern California National Bank, trust account No. 358-21 205 255 Boon Corp... notes—due July 4, 19__, $800,000 face value, 1st American Bank, San Francisco, Calif., trust account...

  20. The Need for Federal Legislation and Regulation Prohibiting Telecommunications and Information Services Discrimination

    Science.gov (United States)

    Strauss, Karen Peltz

    2006-01-01

    This paper explores the need to adopt legislative and regulatory safeguards to guarantee equal access by people with disabilities to evolving high speed broadband, wireless and Internet-based technologies. Recommendations include: (1) Communications Access--FCC or Congress: Extend the telecommunications accessibility requirements of Section 255 of…

  1. 77 FR 12837 - Information Collection Being Submitted to OMB for Review and Approval

    Science.gov (United States)

    2012-03-02

    ....C. 618. Section 255 of the Act requires telecommunications and interconnected VoIP services and...'', in the Federal Register on December 15, 2009 (74 FR 66356) which became effective on January 25, 2010... the use of automated collection techniques or other forms of information technology; and (e) ways...

  2. 76 FR 82297 - Information Collection Being Reviewed by the Federal Communications Commission

    Science.gov (United States)

    2011-12-30

    ... VoIP services and equipment to be accessible, if readily achievable. See 47 U.S.C. 255. Section 718... ``Informal Complaints and Inquiries,'' in the Federal Register on December 15, 2009 (74 FR 66356) which..., including the use of automated collection techniques or other forms of information technology; and (e)...

  3. 76 FR 14661 - Notice of Public Information Collection(s) Being Submitted for Review and Approval to the Office...

    Science.gov (United States)

    2011-03-17

    ... Act of 1996: Access to Telecommunications Service, Telecommunications Equipment and Customer Premises... Number: 3060-1111. Title: Section 225 and 255 Interconnected Voice of Internet- Protocol Services (VoIP... of the Act, to providers of ``interconnected voice over Internet Protocol (VoIP) services,''...

  4. High-pressure X-ray diffraction of L-ALANINE crystal

    DEFF Research Database (Denmark)

    Olsen, J.S.; Gerward, Leif; Souza, A.G.;

    2006-01-01

    L-ALANINE has been studied by X-ray diffraction at ambient temperature and pressure up to 10.3 GPa. The material is found to transform to a tetragonal structure between 2 and 3 GPa. and to a monoclinic structure between 8 and 10 GPa. The experimental bulk modulus is 25(5) GPa for the orthorhombic...

  5. Global Self-Esteem and Self-Efficacy Correlates: Relation of Academic Achievement and Self-Esteem among Emirati Students

    Science.gov (United States)

    Afari, Ernest; Ward, Graeme; Khine, Myint Swe

    2012-01-01

    We investigated the relationships between global self-esteem, academic self-efficacy and academic performance among a sample of 255 college students in the United Arab Emirates. The widely used Rosenberg's Self-Esteem Scale (RSES; Rosenberg, 1965) and an academic self-efficacy scale, modified from (Jinks and Morgan, 1999) were used to assess…

  6. Modulation by phytochrome of the blue light-induced extracellular acidification by leaf epidermal cells of pea (Pisum sativum L.) : a kinetic analysis

    NARCIS (Netherlands)

    Elzenga, JTM; Staal, M; Prins, HBA

    2000-01-01

    Blue light induces extracellular acidification, a prerequisite of cell expansion, in epidermis cells of young pea leaves, by stimulation of the proton pumping-ATPase activity in the plasma membrane. A transient acidification, reaching a maximum 2.5-5 min after the start of the pulse, could be induce

  7. 24 CFR 207.259 - Insurance benefits.

    Science.gov (United States)

    2010-04-01

    ... insurance pursuant to 24 CFR parts 251, 252, or 255, the amount of the fee set forth through Federal... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Insurance benefits. 207.259 Section... DEVELOPMENT MORTGAGE AND LOAN INSURANCE PROGRAMS UNDER NATIONAL HOUSING ACT AND OTHER AUTHORITIES...

  8. Identity Theft and Consumer Health Education: A Case Study Teaching the Skill of Decision Making

    Science.gov (United States)

    Jefson, Cristy A.

    2007-01-01

    Identity theft is the fastest growing white-collar crime in America, increasing 40% annually. Identity theft occurs when personal-identifying information, such as a social security number, date of birth, or address, is used to commit fraud. From January 1, 2005, to December 31, 2005, 255,565 people in the United States were victims of identity…

  9. Drug: D07360 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D07360 Drug Tenonitrozole (INN); Atrican (TN) C8H5N3O3S2 254.9772 255.2736 D07360.gif Antiprotozoa...ROTOZOAL DISEASES P01AX Other agents against amoebiasis and other protozoal disea...st Amebiasis and other antiprotozoals Others Tenonitrozole [ATC:P01AX08] D07360 Tenonitrozole (INN) CAS: 381

  10. Non-Returning Student Interview Study and RSC's Institutional Effectiveness.

    Science.gov (United States)

    Russell, Suzi; Slark, Julie

    In 1989, staff from Rancho Santiago College's (RSC's) research office conducted telephone interviews with a random sample of 255 out of the 17,359 former students who attended RSC in spring 1989 but did not return for the next semester. The study was conducted to determine why students did not return, whether they accomplished their educational…

  11. Are Gross Motor Skills and Sports Participation Related in Children with Intellectual Disabilities?

    Science.gov (United States)

    Westendorp, Marieke; Houwen, Suzanne; Hartman, Esther; Visscher, Chris

    2011-01-01

    This study compared the specific gross motor skills of 156 children with intellectual disabilities (ID) (50 less than or equal to IQ greater than or equal to 79) with that of 255 typically developing children, aged 7-12 years. Additionally, the relationship between the specific gross motor skills and organized sports participation was examined in…

  12. The Subsequent Dissemination of Material Presented in Sessions of the Metallurgical Society at the 96th AIME Annual Meeting.

    Science.gov (United States)

    Johns Hopkins Univ., Baltimore, MD. Center for Research in Scientific Communication.

    Studies of 255 authors of program material at the Metallurgical Society session of the 96th American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Annual Meeting yielded data on the subsequent dissemination of presented material during the year following the meeting. Data showed that three-fourths of the authors who made…

  13. Stochastic Variational Principle for the Three Dimensional Navier-Stokes Equation%三维Navier-Stokes方程的随机变分准则

    Institute of Scientific and Technical Information of China (English)

    罗德军

    2010-01-01

    我们将文献(Cipriano F,Cruzeiro A B.Navier-Stokes equation and diffusions on the group of homeomorphisms of the Torus[J].Commun.Math.Phys.,2007,275:255-269)推广到三维情形,即给出三维环面上的Navier-Stokes方程的随机变分准则.

  14. 19 CFR 148.114 - Shipment of unaccompanied articles.

    Science.gov (United States)

    2010-04-01

    ... 19 Customs Duties 2 2010-04-01 2010-04-01 false Shipment of unaccompanied articles. 148.114 Section 148.114 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY... States § 148.114 Shipment of unaccompanied articles. One copy of the validated Customs Form 255 shall...

  15. The Contribution of Ideational Behavior to Creative Extracurricular Activities

    Science.gov (United States)

    Paek, Sue Hyeon; Park, Hyeri; Runco, Mark A.; Choe, Ho-Seong

    2016-01-01

    The prediction of creative performance from ideation has shown promise, but questions remain. In this study, the relationship of ideational behavior and the creative performance of elementary school children (N = 255) was examined across 6 domains of creative performance: science, mathematics, technology, fine arts, music, and writing.…

  16. 78 FR 37417 - Small Business Size Standards: Arts, Entertainment, and Recreation

    Science.gov (United States)

    2013-06-20

    ... Groups and Artists $7.0 $10.0 711190 Other Performing Arts Companies $7.0 $25.5 711211 Sports Teams and... of Performing Arts, Sports and $7.0 $30.0 Similar Events with Facilities. 711320 Promoters of Performing Arts, Sports and $7.0 $14.0 Similar Events without Facilities. 711410 Agents and Managers...

  17. Predictors of Academic Procrastination in Asian International College Students

    Science.gov (United States)

    Lowinger, Robert Jay; Kuo, Ben C. H.; Song, Hyun-A.; Mahadevan, Lakshmi; Kim, Eunyoung; Liao, Kelly Yu-Hsin; Chang, Catherine Y.; Kwon, Kyong-Ah; Han, Suejung

    2016-01-01

    This study examined the relationships among acculturative stress, coping styles, self-efficacy, English language proficiency, and various demographic characteristics as predictors of procrastination behavior in Asian International students (N = 255) studying in the United States. Results of multiple logistic regression indicated that a collective…

  18. Moderator Role of Self-Esteem on the Relationship between Life Satisfaction and Depression in Early Adolescents

    Science.gov (United States)

    Civitci, Asim

    2010-01-01

    In this study, the moderator effects of global self-esteem on the relationship between life satisfaction domains (family, friends and school) and depression in early adolescents were examined. The participants consisted of 255 students, aged from 11 to 15 years, from three junior high schools in Turkey. Data were collected using the Rosenberg…

  19. 75 FR 48669 - Product Cancellation Order for Certain Pesticide Registrations

    Science.gov (United States)

    2010-08-11

    ... butoxide Insecticide Type Pyrethrins M MGK 264 008536-00036 Cardinal 25-5 Piperonyl butoxide Insecticide... II., pursuant to section 6(f)(1) of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA... Piperonyl butoxide Patrol Carpet Insecticide and Freshener Formula B 002517-00069 Sergeant's...

  20. Dicty_cDB: AFN839 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 071.1 ML1365 peppermint glandular trichome Mentha x piperita cDNA, mRNA sequence. 64 2e-06 1 BM315730 |BM315...EIN DISULFIDE ISOMERASE P5 PRECURSOR ;, mRNA sequence. 68 2e-07 1 AW255071 |AW255

  1. The Karimojong from Uganda

    DEFF Research Database (Denmark)

    Gomes, Iva; Pereira, Vania; Gomes, Verónica;

    2009-01-01

    The Karimojong, an African group from the Karamoja region of Northeast Uganda, were genetically analysed using a decaplex system for X chromosome short tandem repeats (X-STRs). A total of 255 individuals (117 males and 138 females) were genotyped for the following loci: DXS8378, DXS9898, DXS7133,...

  2. Domain Modeling: NP_066574.2 [SAHG[Archive

    Lifescience Database Archive (English)

    Full Text Available NP_066574.2 chr2 CRYSTAL STRUCTURE OF A DESIGNED ZINC FINGER PROTEIN BOUND TO DNA c1meyf_ chr2/NP_066574.2.../NP_066574.2_holo_254-335.pdb blast 255K,259C,261E,262C,263G,264K,265A,266F,267F,268D

  3. The impact of materials technology and operational constraints on the economics of cruise speed selection

    Science.gov (United States)

    Clauss, J. S., Jr.; Bruckman, F. A.; Horning, D. L.; Johnston, R. H.; Werner, J. V.

    1981-01-01

    Six material concepts at Mach 2.0 and three material concepts at Mach 2.55 were proposed. The resulting evaluations, based on projected development, production, and operating costs, indicate that aircraft designs with advanced composites as the primary material ingredient have the lowest fare premiums at both Mach 2.0 and 2.55. Designs having advanced metallics as the primary material ingredient are not economical. Advanced titanium, employing advanced manufacturing methods such as SFF/DB, requires a fare premium of about 30 percent at both Mach 2.0 and 2.55. Advanced aluminum, usable only at the lower Mach number, requires a fare premium of 20 percent. Cruise speeds in the Mach 2.0-2.3 regime are preferred because of the better economics and because of the availability of two material concepts to reduce program risk - advanced composites and advanced aluminums. This cruise speed regime also avoids the increase in risk associated with the more complex inlets and airframe systems and higher temperature composite matrices required at the higher Mach numbers typified by Mach 2.55.

  4. Dicty_cDB: Contig-U15440-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available quence from clone MTH2-20H1 on... 40 2.5 6 ( DQ394809 ) Lactococcus phage ul36.t1k1, complete genome. 44 2.6 3 ( AJ493124 ) Varroa...m subsp. nucleatum ATCC 255... 32 7.0 23 ( AY163547 ) Varroa destructor mitochondrion, complete genome. 32 7

  5. Fosterreduktion--en retrospektiv opgørelse

    DEFF Research Database (Denmark)

    Frederiksen, Mette Heinel; Henriksen, Stine Dam; Bønnelykke, Astrid Julie;

    2009-01-01

    two total foetal losses (5%), one stillborn and 82 live born, among which two died perinatally. The median gestational age was 255 days (36 weeks and three days), five children were born before week 32 (6%), the mean birth weight among live born was 2,390 +/- 578 grams (mean +/- standard deviation...

  6. 75 FR 7370 - Closed Captioning of Video Programming; Closed Captioning Requirements for Digital Television...

    Science.gov (United States)

    2010-02-19

    ... announcing the effective date of those rules. DATES: 47 CFR 79.1(g)(1) through (5), (i), published at 74 FR... Order, FCC 08-255, published at 74 FR 1594, January 13, 2009. The OMB Control Number is 3060-0761. The... Television Receivers AGENCY: Federal Communications Commission. ACTION: Final rule; announcement of...

  7. The Impact of Perceived Discrimination and Social Support on the School Performance of Multiethnic Sexual Minority Youth

    Science.gov (United States)

    Craig, Shelley L.; Smith, Mark S.

    2014-01-01

    Sexual minority youth are known to face increased risk of poor school performance; however, little research has focused on the educational experiences of multiethnic sexual minority youth (MSMY) in particular. Using venue-based sampling approaches, this study surveyed 255 MSMY at 15 urban high schools. The majority of participants identified as…

  8. Coffee Certification in East Africa: Impact on Farmers, Families and Cooperatives

    Directory of Open Access Journals (Sweden)

    Jason Donovan

    2015-08-01

    Full Text Available Reviewed: Coffee Certification in East Africa: Impact on Farmers, Families and Cooperatives. Edited by Ruerd Ruben and Paul Hoebink. Wageningen, the Netherlands: Wageningen Academic Publishers, 2015. 262 pp. US $ 62.00, € 45.00. ISBN 978-90-8686-255-9.

  9. Spectral modulation through controlling anions in nanocaged phosphors

    NARCIS (Netherlands)

    H. Bian; Y. Liu; D. Yan; H. Zhu; C. Liu; C.S. Xu; Y. Liu; H. Zhang; X. Wang

    2013-01-01

    A new approach has been proposed and validated to modulate the emission spectra of europium-doped 12CaO center dot 7Al(2)O(3) phosphors by tuning the nonradiative and radiative transition rates, realized by controlling the sort and amount of the encaged anions. A single wavelength at 255 nm can exci

  10. 77 FR 1710 - Extension of the Designation of El Salvador for Temporary Protected Status and Automatic...

    Science.gov (United States)

    2012-01-11

    ... OSC Worker Information Hotline at 1-(800) 255-7688 for information regarding employment discrimination... of earthquakes that occurred in 2001. See 66 FR 14214 and section 244(a)(b)(1)(B) of the Immigration... appropriate Government agencies, to designate a foreign state (or part thereof) for TPS.\\1\\ The Secretary...

  11. NEK6-mediated phosphorylation of human TPP1 regulates telomere length through telomerase recruitment.

    Science.gov (United States)

    Hirai, Yugo; Tamura, Miki; Otani, Junji; Ishikawa, Fuyuki

    2016-08-01

    Shelterin component TPP1 plays critical roles in chromosome end protection and telomere length regulation. Specifically, TPP1 contains an OB-fold domain that provides an interface to recruit telomerase. However, it remains largely unknown how telomerase recruitment is regulated by cell cycle regulators. We show that TPP1 interacts with the cell cycle regulator kinase NEK6 in human cells. We found that NEK6-mediated phosphorylation of TPP1 Ser255 in G2/M phase regulates the association between telomerase activity and TPP1. Furthermore, we found evidence that POT1 negatively regulates TPP1 phosphorylation because the level of Ser255 phosphorylation was elevated when telomeres were elongated by a POT1 mutant lacking its OB-fold domains. Ser255 is located in the intervening region between the telomerase-recruiting OB-fold and the POT1 recruitment domains. Ser255 and the surrounding amino acids are conserved among vertebrates. These observations suggest that a region adjacent to the OB-fold domain of TPP1 is involved in telomere length regulation via telomerase recruitment. PMID:27396482

  12. Characterization by culture-dependent and culture-1 independent methods of the 2 bacterial population of suckling-lamb packaged in different atmospheres

    NARCIS (Netherlands)

    Oses, S.M.; Diez, A.M.; Melero, B.; Luning, P.A.; Jaime, I.; Rovira, J.

    2013-01-01

    This study offers insight into the dynamics of bacterial populations in fresh cuts of suckling lamb under four different atmospheric conditions: air (A), and three Modified Atmosphere Packaging (MAP) environments, 15%O2/30%CO2/55%N2 (C, commercial), 70%O2/30%CO2 (O), and 15%O2/85%CO2 (H) for 18 days

  13. Investigating ESL Students' Academic Performance in Tenses

    Science.gov (United States)

    Javed, Muhammad; Ahmad, Atezaz

    2013-01-01

    The present study intends to assess the ESL students' performance in tenses at secondary school level. Grade 10 students were the target population of the study. A sample of 396 students (255 male and 141 female) was selected through convenience sampling technique from the District of Bahawalnagar, Pakistan. A test focusing on five different types…

  14. 76 FR 74039 - Approaches to Reducing Sodium Consumption; Establishment of Dockets; Request for Comments, Data...

    Science.gov (United States)

    2011-11-30

    ...; ] DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration DEPARTMENT OF AGRICULTURE Food Safety... issues associated with the development of targets for sodium reduction in foods to promote reduction in.... Bonnette, Center for Food Safety and Applied Nutrition (HFS-255), Food and Drug Administration, 5100...

  15. 76 FR 67196 - Approaches to Reducing Sodium Consumption; Establishment of Dockets; Request for Comments, Data...

    Science.gov (United States)

    2011-10-31

    ... Nutrition (HFS-255), Food and Drug Administration, 5100 Paint Branch Pkwy., College Park, MD 20740-3835... of Policy and Program Development, Food Safety and Inspection Service, U.S. Department of Agriculture... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF HEALTH...

  16. Interactions between Personality Type and the Experimental Methods

    Science.gov (United States)

    Emerson, Tisha L. N.; Taylor, Beck A.

    2007-01-01

    The authors bring together two research streams in the literature that examine separately the effectiveness of using experiments in the principles classroom and the relationship between different personality types and student achievement. Using a sample of 255 principles of microeconomics students, 48 of whom were enrolled in sections that relied…

  17. AcEST: BP919701 [AcEST

    Lifescience Database Archive (English)

    Full Text Available OS=Mycob... 74 3e-12 tr|B2HMD5|B2HMD5_MYCMM Conserved hypothetical membrane protein O... 70 5e-11 tr|A0PTZ3|...VGLKKFMD 322 Query: 290 YLESVIPLWKEY 255 YL+SV+PLW Y Sbjct: 323 YLDSVLPLWLRY 334 >tr|B2HMD5|B2HMD5_MYCMM Con

  18. The Role of the English Teacher in Encouraging Recreational Reading.

    Science.gov (United States)

    Brown, Eleanor Drum

    This study describes the role of the ninth grade English teacher and the use of classroom resources in promoting recreational reading. The range of recreational reading and the reading interests of 2,255 ninth grade pupils in nine high schools near Albany, New York, were identified, and the factors which appear to be associated with pupils'…

  19. Sentinel node biopsy for melanoma: a study of 241 patients

    DEFF Research Database (Denmark)

    Chakera, Annette Hougaard; Drzewiecki, Krzysztof Tadeusz; Jakobsen, Annika Loft;

    2004-01-01

    nine haematoxylin and eosin (HE)-negatives, all of which were found by immunohistochemistry. The false negative rate for the SNB procedure was 4% (2/55). The complication rate was 6% after SNB and 29% after complete node dissection. In conclusion, SN status is a strong prognostic factor in melanoma...

  20. Magnitude and meaningfulness of change in SF-36 scores in four types of orthopedic surgery

    DEFF Research Database (Denmark)

    Busija, Lucy; Osborne, Richard H; Nilsdotter, Anna;

    2008-01-01

    subscales following orthopedic surgery. METHODS: Longitudinal data on outcomes of total hip replacement (THR, n = 255), total knee replacement (TKR, n = 103), arthroscopic partial meniscectomy (APM, n = 74) and anterior cruciate ligament reconstruction (ACL, n = 62) were used to estimate the effect sizes...

  1. 76 FR 47180 - Pick-Sloan Missouri Basin Program-Eastern Division-2021 Power Marketing Initiative Proposal

    Science.gov (United States)

    2011-08-04

    ... Great Plains Region, Western Area Power Administration, 2900 4th Avenue North, Billings, MT 59101- 1266... Administration, 2900 4th Avenue North, Billings, MT 59101-1266, telephone (406) 255-2932, e-mail UGP2021@wapa.gov..., throughout the Upper Great Plains Region. The proposed 2021 PMI (76 FR 12104) was published in the...

  2. 78 FR 17653 - Upper Great Plains Wind Energy Draft Programmatic Environmental Impact Statement (DOE/EIS-0408)

    Science.gov (United States)

    2013-03-22

    ... Street, Billings, MT. 2. May 1, 2013, Ramada Bismarck Hotel & Conference Center, 1400 East Interchange... Power Administration, P.O. Box 35800, Billings, MT 59107-5800, telephone (406) 255-2810, facsimile (406... accordance with Executive Order 13175 ``Consultation and Coordination with Indian Tribal Governments'' (65...

  3. 78 FR 65641 - Recommendation From the Western Area Power Administration To Pursue Regional Transmission...

    Science.gov (United States)

    2013-11-01

    ... Area Power Administration, 2900 4th Avenue North, Billings, MT 59101-1266. FOR FURTHER INFORMATION... Administration, 2900 4th Avenue North, Billings, MT 59101-1266, telephone (406) 255- 2910, email sundsted@wapa....gov/ugp/Environment/default.htm . Dated: October 29, 2013. Mark A. Gabriel, Administrator....

  4. AcEST: DK948611 [AcEST

    Lifescience Database Archive (English)

    Full Text Available ative uncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein ...A Sbjct: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive

  5. AcEST: DK959090 [AcEST

    Lifescience Database Archive (English)

    Full Text Available _MEDTR Putative uncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-lik...KCGLTYVYQKA Sbjct: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive

  6. AcEST: BP912606 [AcEST

    Lifescience Database Archive (English)

    Full Text Available d protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like p...LTYVYQKA Sbjct: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like p

  7. AcEST: DK951452 [AcEST

    Lifescience Database Archive (English)

    Full Text Available ncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein OS=Zizi...: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive

  8. AcEST: DK949125 [AcEST

    Lifescience Database Archive (English)

    Full Text Available tative uncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protein...KA Sbjct: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive

  9. AcEST: DK948834 [AcEST

    Lifescience Database Archive (English)

    Full Text Available utative uncharacterized protein OS=Medic... 255 2e-66 tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive-like protei...QKA Sbjct: 121 CPNAECGAGTFMANHFDRHYCGKCGLTYVYQKA 153 >tr|B5LWQ7|B5LWQ7_ZIZJJ Ubiquitin extensive

  10. Parentage analysis and outcrossing patterns in cacao (Theobroma cacao L.) farms in Cameroon

    Science.gov (United States)

    The present study investigates the parentage of farm accessions in Cameroon using data from 12 microsatellite loci. Bayesian analysis suggests that 25.5% of the 400 farm accessions studies are still closely related to the traditinal Amelonado variety called 'German Cocoa' by the farmers. Another 46....

  11. 10 CFR Appendix E to Part 30 - Criteria Relating to Use of Financial Tests and Self-Guarantee For Providing Reasonable Assurance...

    Science.gov (United States)

    2010-01-01

    .... (b) Long term debt divided by net fixed assets must be less than or equal to 0.67. (c) (Current assets and depreciation fund) divided by current liabilities must be greater than or equal to 2.55. (d... until another financial assurance method acceptable to the Commission has been put in effect by...

  12. 78 FR 72794 - Revisions to Auxiliary Installations, Replacement Facilities, and Siting and Maintenance Regulations

    Science.gov (United States)

    2013-12-04

    ... existing facilities.\\27\\ \\23\\ Supra n.6. \\24\\ The sentiment in Order No. 603-A, 64 FR 54522 at 54524, FERC... III. Information Collection Statement 80 IV. Environmental Analysis 88 V. Regulatory Flexibility Act... Rulemaking, NOPR, 13 FR 6253, at 6254 (October 23, 1948). \\4\\ Section 2.55 went into effect in 1949....

  13. Evidences for a Paleocene marine incursion in southern Amazonia (Madre de Dios Sub-Andean Zone, Peru)

    NARCIS (Netherlands)

    Louterbach, M.; Roddaz, M.; Bailleul, J.; Antoine, P. O.; Adnet, S.; Kim, J. H.; van Soelen, E.; Parra, F.; Gérard, J.; Calderon, Y.; Gagnaison, C.; Sinninghe Damsté, J.S.; Baby, P.

    2014-01-01

    This article presents new biostratigraphic dating, facies analysis, organic geochemical data and Nd-Sr isotopic provenance from five outcrops of southern Amazonia (MD-85, MD-177 MD-184, MD-255 and MD-256) to document for the first time the presence of a shallow marine ingression in the Paleocene of

  14. The Influence of Socio-Economic Status and Ethnicity on Speech and Language Development

    Science.gov (United States)

    Basit, Tehmina N.; Hughes, Amanda; Iqbal, Zafar; Cooper, Janet

    2015-01-01

    A number of factors influence the speech and language development of young children. Delays in the development of speech and language can have repercussions for school attainment and life chances. This paper is based on a survey of 3- to 4-year-old children in the city of Stoke-on-Trent in the UK. It analyses the data collected from 255 children…

  15. Modeling the interactions of a peptide-major histocompatibility class I ligand with its receptors. I. Recognition by two alpha beta T cell receptors

    DEFF Research Database (Denmark)

    Rognan, D; Stryhn, A; Fugger, L;

    2000-01-01

    A three-dimensional model of the complex between an Influenza Hemagglutinin peptide, Ha255-262, and its restricting element, the mouse major histocompatibility complex (MHC) class I molecule, Kk, was built by homology modeling and subsequently refined by simulated annealing and restrained molecular...

  16. EST Table: FS924668 [KAIKOcDNA[Archive

    Lifescience Database Archive (English)

    Full Text Available FS924668 E_FL_fwgP_11D20_F_0 10/09/28 73 %/252 aa gb|AAQ12887.1| Z9-desaturase SFWG5A [Choristoneura paralle...la] gb|AAQ12888.1| Z9-desaturase SFWG5B [Choristoneura parallela] 10/09/13 52 %/255

  17. Counseling Chinese Patients about Cigarette Smoking: The Role of Nurses

    Science.gov (United States)

    Li, Han Zao; Zhang, Yu; MacDonell, Karen; Li, Xiao Ping; Chen, Xinguang

    2012-01-01

    Purpose: The main purpose of this study is to determine the cigarette smoking rate and smoking cessation counseling frequency in a sample of Chinese nurses. Design/methodology/approach: At the time of data collection, the hospital had 260 nurses, 255 females and five males. The 200 nurses working on the two daytime shifts were given the…

  18. Drug: D04709 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D04709 Mixture, Drug Scopolia extract and tannic acid suppositories (JP16); Scopolia extract... and tannic acid (TN) Scopolia extract [DR:D04062], Tannic acid [DR:D01959] Therapeutic category: 2...nd anal organ agents 255 Hemorrhoidal preparations 2559 Others D04709 Scopolia extract and tannic acid suppositories (JP16) PubChem: 17398146 ...

  19. Strategic Analysis of Family Support in EHDI Systems

    Science.gov (United States)

    Bradham, Tamala S.; Houston, K. Todd; Guignard, Gayla Hutsell; Hoffman, Jeff

    2011-01-01

    State coordinators of early hearing detection and intervention (EHDI) programs completed a strengths, weaknesses, opportunities, and threats, or SWOT, analysis that examined 12 areas within state EHDI programs. For the family support area, 47 EHDI coordinators listed 255 items, and themes were identified within each category. A threats,…

  20. Tuberculosis-related mortality in people living with HIV in Europe and Latin America

    DEFF Research Database (Denmark)

    Podlekareva, Daria N; Efsen, Anne Marie W; Schultze, Anna;

    2016-01-01

    baseline, whichever occurred first. Risk factors for all-cause and tuberculosis-related deaths were assessed using Kaplan-Meier estimates and Cox models. FINDINGS: Of 1406 patients (834 in eastern Europe, 317 in western Europe, and 255 in Latin America), 264 (19%) died within 12 months. 188 (71...

  1. Gender Matters in Higher Education

    Science.gov (United States)

    Harrop, Alex; Tattersall, Andy; Goody, Adam

    2007-01-01

    Much of the research in higher education has treated student bodies as homogeneous groups with a consequent neglect of any consideration of gender differences. To test the validity of such research a questionnaire was administered to 255 psychology students. The results showed some important differences in responses between the genders. In…

  2. Examination of Relationship between Anxiety Sensitivity and Parenting Styles in Adolescents

    Science.gov (United States)

    Erozkan, Atilgan

    2012-01-01

    This research investigated the relationships between anxiety sensitivity and perceived parenting styles of adolescents and the predictive role of perceived parenting styles on anxiety sensitivity. The study group was composed by 545 (255 females; 290 males) students studying in different high schools in Mugla. The data were collected using the…

  3. Afløbsinstallationer - systemer og dimensionering

    DEFF Research Database (Denmark)

    Brandt, Erik; Faldager, Inge

    SBi-anvisning 255 beskriver afløbssystemer og retningslinjer for dimensionering af afløbssystemer i henhold til Bygningsreglementet og derigennem DS 432:2009. Anvisningen henvender sig til projekterende og udførende af afløbsinstallationer i nybyggeri eller eksisterende byggeri, eller som skal re...

  4. Gclust Server: 194172 [Gclust Server

    Lifescience Database Archive (English)

    Full Text Available 194172 PFA_PF10_0105 Cluster Sequences - 255 hypothetical protein 1 1.00e-99 0.0 11....11 0.0 0.0 0.0 0.0 Show 194172 Cluster ID 194172 Sequence ID PFA_PF10_0105 Link to cluster sequences Cluste

  5. EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF); Scientific Opinion on Flavouring Group Evaluation 7, Revision 4 (FGE.07Rev4): Saturated and unsaturated aliphatic secondary alcohols, ketones and esters of secondary alcohols and saturated linear or branched-chain carboxylic acids from chemical group 5

    DEFF Research Database (Denmark)

    Larsen, John Christian; Nørby, Karin Kristiane; Beltoft, Vibe Meister;

    substances, the specifications for the materials of commerce have also been considered. For three substances [FL-no: 02.194, 02.211 and 02.255] the stereoisomeric compositions have not been given and for one substance [FL-no: 07.156] information on the composition of the stereoisomeric mixture is lacking....

  6. Emotion Understanding in Deaf Children with a Cochlear Implant

    Science.gov (United States)

    Wiefferink, Carin H.; Rieffe, Carolien; Ketelaar, Lizet; De Raeve, Leo; Frijns, Johan H. M.

    2013-01-01

    It is still largely unknown how receiving a cochlear implant affects the emotion understanding in deaf children. We examined indices for emotion understanding and their associations with communication skills in children aged 2.5-5 years, both hearing children (n = 52) and deaf children with a cochlear implant (n = 57). 2 aspects of emotion…

  7. 75 FR 59238 - Proposed Collection; Comment Request

    Science.gov (United States)

    2010-09-27

    ... chain management (SCM) practices, processes and metrics that could be beneficial to the Department of..., OH, 45433, 937-255-3636 x4674. Title; Associated Form; and OMB Number: Leading Edge Supply Chain... Potential respondents to this survey are individuals with in depth experience in commercial supply...

  8. 75 FR 61101 - Closed Captioning of Video Programming

    Science.gov (United States)

    2010-10-04

    ..., 2010. The provision in 47 CFR 79.1(i)(1) and (2), published at 74 FR 1594, January 13, 2009, requiring...- 255, (2008 Closed Captioning Order), published at 74 FR 1594, January 13, 2009, which, among other..., published at 74 FR 1594, January 13, 2009, was a non-major action pursuant to the CRA. Document DA...

  9. 75 FR 7368 - Closed Captioning of Video Programming

    Science.gov (United States)

    2010-02-19

    .... DATES: 47 CFR 79.1(i)(3), published at 74 FR 1594, January 13, 2009, and the revisions in this document... Proposed Rulemaking, FCC 08- 255 (2008 Closed Captioning Order), published at 74 FR 1594, January 13, 2009... COMMISSION 47 CFR Part 79 Closed Captioning of Video Programming AGENCY: Federal Communications...

  10. Main: 1XQ1 [RPSD[Archive

    Lifescience Database Archive (English)

    Full Text Available cs (Cesg) Center For Eukaryotic Structural Genomics X-Ray Structure Of Putative T...E; PS00061; ADH_SHORT; 1. X-Ray Diffraction, Resolution: 2.10 Angstrom, R-Factor: 0.255, R-Free: 0.316 Lengt

  11. Drug: D08827 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available gory of drugs in Japan [BR:br08301] 2 Agents affecting individual organs 25 Urogenital and anal organ agents 255 Hemorrhoidal prepara...tions 2559 Others D08827 Hydrocortisone - killed bacillus coli mixt PubChem: 96025510 ...

  12. Future Money-Related Worries among Adolescents after Divorce

    Science.gov (United States)

    Koerner, Susan Silverberg; Korn, Marcella; Dennison, Renee Peltz; Witthoft, Sara

    2011-01-01

    The present research examined adolescents' views of their future with respect to money and financial well-being via an open-ended question and inductive content analysis. The participants were adolescents (N = 255) whose parents were divorced between 5 and 24 months at the time of data collection. The most common worries pertained to (a) being…

  13. News

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Major Export Markets Going Up in Frist Four Months According to Customs Data,the export of textile and clothing accumulated to 70.255 billion USD in first four months,rising 27.05% from the same period last year.

  14. Active-active and active-sterile neutrino oscillation solutions to the atmospheric neutrino anomaly

    CERN Document Server

    González-Garciá, M Concepción; Peres, O L G; Valle, José W F

    1999-01-01

    We perform a fit to the full data set corresponding to 25.5 kt-yr of data of the Super-Kamiokande experiment as well as to all other experiments in order to compare the two most likely solutions to the atmospheric neutrino anomaly in terms of oscillations in the $\

  15. Integrase inhibitor (INI) genotypic resistance in treatment-naive and raltegravir-experienced patients infected with diverse HIV-1 clades

    Science.gov (United States)

    Doyle, Tomas; Dunn, David T.; Ceccherini-Silberstein, Francesca; De Mendoza, Carmen; Garcia, Frederico; Smit, Erasmus; Fearnhill, Esther; Marcelin, Anne-Genevieve; Martinez-Picado, Javier; Kaiser, Rolf; Geretti, Anna Maria

    2015-01-01

    Objectives The aim of this study was to characterize the prevalence and patterns of genotypic integrase inhibitor (INI) resistance in relation to HIV-1 clade. Methods The cohort comprised 533 INI-naive subjects and 255 raltegravir recipients with viraemia who underwent integrase sequencing in routine care across Europe, including 134/533 (25.1%) and 46/255 (18.0%), respectively, with non-B clades (A, C, D, F, G, CRF01, CRF02, other CRFs, complex). Results No major INI resistance-associated mutations (RAMs) occurred in INI-naive subjects. Among raltegravir recipients with viraemia (median 3523 HIV-1 RNA copies/mL), 113/255 (44.3%) had one or more major INI RAMs, most commonly N155H (45/255, 17.6%), Q148H/R/K + G140S/A (35/255, 13.7%) and Y143R/C/H (12/255, 4.7%). In addition, four (1.6%) raltegravir recipients showed novel mutations at recognized resistance sites (E92A, S147I, N155D, N155Q) and novel mutations at other integrase positions that were statistically associated with raltegravir exposure (K159Q/R, I161L/M/T/V, E170A/G). Comparing subtype B with non-B clades, Q148H/R/K occurred in 42/209 (20.1%) versus 2/46 (4.3%) subjects (P = 0.009) and G140S/A occurred in 36/209 (17.2%) versus 1/46 (2.2%) subjects (P = 0.005). Intermediate- to high-level cross-resistance to twice-daily dolutegravir was predicted in 40/255 (15.7%) subjects, more commonly in subtype B versus non-B clades (39/209, 18.7% versus 1/46, 2.2%; P = 0.003). A glycine (G) to serine (S) substitution at integrase position 140 required one nucleotide change in subtype B and two nucleotide changes in all non-B clades. Conclusions No major INI resistance mutations occurred in INI-naive subjects. Reduced occurrence of Q148H/R/K + G140S/A was seen in non-B clades versus subtype B, and was explained by the higher genetic barrier to the G140S mutation observed in all non-B clades analysed. PMID:26311843

  16. Odd-even effects in the nuclear fission

    International Nuclear Information System (INIS)

    By the adopted way it succeeded without a completely free parameter to reproduce the experimental values for the odd-even effect for all those nuclei for which data were present. These are all even-charged nuclei from thorium to californium. Partly the OE-effect was studied in spontaneous fission, partly in neutron induced fission with thermal, 1.9-, and 3.0- MeV neutrons. It was shown that the calculated values depend very strongly from the one-particle model which is assumed in order to calculate the probabilities for pairing excitations. Thereby not only the steepness plays a role with which the one-particle energies cross the Fermi edge, but also the deformation velocity, and finally the remaining time until the scission point. That means that the whole procedure depends extremely from details of the one-particle model. Different one-particle models can be excluded because they contain simply too many crossings and then the OE effect tends to O. (orig./HSI)

  17. Fast neutron tomography with real-time pulse-shape discrimination in organic scintillation detectors

    Science.gov (United States)

    Joyce, Malcolm J.; Agar, Stewart; Aspinall, Michael D.; Beaumont, Jonathan S.; Colley, Edmund; Colling, Miriam; Dykes, Joseph; Kardasopoulos, Phoevos; Mitton, Katie

    2016-10-01

    A fast neutron tomography system based on the use of real-time pulse-shape discrimination in 7 organic liquid scintillation detectors is described. The system has been tested with a californium-252 source of dose rate 163 μSv/h at 1 m and neutron emission rate of 1.5×107 per second into 4π and a maximum acquisition time of 2 h, to characterize two 100×100×100 mm3 concrete samples. The first of these was a solid sample and the second has a vertical, cylindrical void. The experimental data, supported by simulations with both Monte Carlo methods and MATLAB®, indicate that the presence of the internal cylindrical void, corners and inhomogeneities in the samples can be discerned. The potential for fast neutron assay of this type with the capability to probe hydrogenous features in large low-Z samples is discussed. Neutron tomography of bulk porous samples is achieved that combines effective penetration not possible with thermal neutrons in the absence of beam hardening.

  18. γ -soft Ba146 and the role of nonaxial shapes at N90

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, A. J.; Lister, C. J.; McCutchan, E. A.; Albers, M.; Ayangeakaa, A. D.; Bertone, P. F.; Carpenter, M. P.; Chiara, C. J.; Chowdhury, P.; Clark, J. A.; Copp, P.; David, H. M.; Deo, A. Y.; DiGiovine, B.; D' Olympia, N.; Dungan, R.; Harding, R. D.; Harker, J.; Hota, S. S.; Janssens, R. V. F.; Kondev, F. G.; Liu, S. H.; Ramayya, A. V.; Rissanen, J.; Savard, G.; Seweryniak, D.; Shearman, R.; Sonzogni, A. A.; Tabor, S. L.; Walters, W. B.; Wang, E.; Zhu, S.

    2016-01-01

    Low-spin states in the neutron-rich, N=90 nuclide Ba146 were populated following β decay of Cs146, with the goal of clarifying the development of deformation in barium isotopes through delineation of their nonyrast structures. Fission fragments of Cs146 were extracted from a 1.7-Ci Cf252 source and mass selected using the CAlifornium Rare Ion Breeder Upgrade (CARIBU) facility. Low-energy ions were deposited at the center of a box of thin β detectors, surrounded by a highly efficient high-purity Ge array. The new Ba146 decay scheme now contains 31 excited levels extending up to ~2.5 MeV excitation energy, double what was previously known. These data are compared to predictions from the interacting boson approximation (IBA) model. It appears that the abrupt shape change found at N=90 in Sm and Gd is much more gradual in Ba and Ce, due to an enhanced role of the γ degree of freedom.

  19. Use of plasma desorption time-of-flight mass spectrometry to screen for products of prohormone processing in crude tissue extracts

    International Nuclear Information System (INIS)

    Californium-252 plasma desorption mass spectrometry (252Cf PDMS) of a crude, desalted, extract of piscine endocrine pancreas provided mass information for the major biologically active peptide hormones present in this tissue. An extraction procedure compatible with 252Cf PDMS analysis was developed. In extracts of catfish pancreas, strong molecular ions were identified in the positive mode for somatostatin-14 (1638 amu), O-glycosylated somatostatin-22 (2944 amu), glucagon (3512 amu), glucagon-like peptide (3785 amu), insulin (ca. 5550 amu), and other prohormone-derived peptides. Both protonated species and sodium adducts were apparent in the mass spectrum. A number of other molecular ions were observed including somatostatin-26, 1-10 (1014 amu) and the entire portion of prosomatostatin-22 remaining after removal of somatostatin-22 (6465 amu). The data obtained by this method also resulted in the identification of the third major product of proglucagon processing in catfish pancreas, glicentin-related polypeptide. Subtractive Edman degradation analyzed by 252Cf PDMS was also used to confirm a mass assignment

  20. Nuclear Chemistry Institute, Mainz University. Annual Report 1995

    International Nuclear Information System (INIS)

    The annual report of the Institut fuer Kernchemie addresses inter alia three main research activities. The first belongs to the area of basic research, covering studies in the fields of nuclear fission, chemistry of the super-heavy elements and of heavy-ion reactions extending from the Coulomb barrier to relativistic energies, and nuclear astrophysics in connection with the ''r process''. By means of laser technology, high-precision data could be measured of the ionization energies of berkelium and californium. Studies of atomic clusters in the vacuum of an ionization trap revealed interesting aspects. The second major activity was devoted to the analysis of environmental media, applying inter alia neutron activation analysis and resonance ionization mass spectroscopy (RIMS). The third activity resulted in the development of novel processes, or the enhancement of existing processes or methods, for applications in basic research work and in environmental analytics. Another item of interest is the summarizing report on the operation of the TRIGA research reactor. (orig./SR)

  1. About possibilities of obtaining focused beams of thermal neutrons of radionuclide source

    International Nuclear Information System (INIS)

    Full text: In the last years significant progress is achieved in development of neutron focusing methods (concentrating neutrons in a given direction and a small area). In this, main attention is given to focusing of neutron beams of reactor, particularly cold neutrons and their applications. [1,2]. However, isotope sources also let obtain intensive neutron beams and solve quite important (tasks) problems (e.g. neutron capture therapy for malignant tumors) [3], and an actual problems is focusing of neutrons. We developed a device on the basis of californium source of neutrons, allowing to obtain focused (preliminarily) beam of thermal neutrons with the aid of respective choice of moderators, reflectors and geometry of their disposition. Here, fast neutrons and gamma rays in the beam are minimized. With the aid of the model we developed on the basis of Monte-Carlo method, it is possible to modify aforementioned device and dynamics of output neutrons in wide energy range and analyze ways of optimization of neutron beams of isotope sources with different neutron outputs. Device of preliminary focusing of thermal neutrons can serve as a basis for further focus of neutrons using micro- and nano-capillar systems. It is known that, capillary systems performed with certain technology can form beam of thermal neutrons increasing its density by more than two orders of magnitude and effectively divert beams up to 20o with length of system 15 cm

  2. Production of Medical Radioisotopes in the ORNL High Flux Isotope Reactor (HFIR) for Cancer Treatment and Arterial Restenosis Therapy after PTCA

    Science.gov (United States)

    Knapp, F. F. Jr.; Beets, A. L.; Mirzadeh, S.; Alexander, C. W.; Hobbs, R. L.

    1998-06-01

    The High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory (ORNL) represents an important resource for the production of a wide variety of medical radioisotopes. In addition to serving as a key production site for californium-252 and other transuranic elements, important examples of therapeutic radioisotopes which are currently routinely produced in the HFIR for distribution include dysprosium-166 (parent of holmium-166), rhenium-186, tin-117m and tungsten-188 (parent of rhenium-188). The nine hydraulic tube (HT) positions in the central high flux region permit the insertion and removal of targets at any time during the operating cycle and have traditionally represented a major site for production of medical radioisotopes. To increase the irradiation capabilities of the HFIR, special target holders have recently been designed and fabricated which will be installed in the six Peripheral Target Positions (PTP), which are also located in the high flux region. These positions are only accessible during reactor refueling and will be used for long-term irradiations, such as required for the production of tin-117m and tungsten-188. Each of the PTP tubes will be capable of housing a maximum of eight HT targets, thus increasing the total maximum number of HT targets from the current nine, to a total of 57. In this paper the therapeutic use of reactor-produced radioisotopes for bone pain palliation and vascular brachytherapy and the therapeutic medical radioisotope production capabilities of the ORNL HFIR are briefly discussed.

  3. Neutron activation determination of gold in technogenic raw materials with different mineral composition

    Directory of Open Access Journals (Sweden)

    Yudakov Aleksandr A.

    2015-01-01

    Full Text Available The methods used to determine the gold content in the technogenic objects of gold mining were analyzed regarding their non-homogeneity and complexity of chemical and mineral compositions. A possible application of the neutron activation analysis with the use of the californium source of neutrons for determining the content of fine-grained and extra-fine-grained gold in the technogenic objects, including the bottom-ash waste of energy providers, is considered. It was demonstrated that the chemical composition of the sample affects the neuron flux distribution in the sample, which can essentially distort the results of the neutron activation analysis. In order to eliminate possible systematic errors investigations of the effect of the sample mineral composition on the results of the gold determination using the neutron activation analysis were carried out. Namely, a large mass of rock (3-5 kg was loaded into an activation zone using four matrix types such as silicate, carbon-containing, iron-containing, and titanium magnetite. It was shown that there wereno significant difference between the dispersal of the fluxes of thermal and resonance neutrons emitted from 252Cf during activation of the gold-containing technogenic samples with different mineral compositions.

  4. On-line charge breeding using ECRIS and EBIS

    Science.gov (United States)

    Vondrasek, Richard

    2016-06-01

    The efficient and rapid production of a high-quality, pure beam of highly charged ions is at the heart of any radioactive ion beam facility. Whether an electron cyclotron resonance (ECR) ion source or an electron beam ion source (EBIS) is used to produce these highly charged ions, their operating characteristics will set the boundaries on the range of experiments which can be performed. In addition, time structure and duty cycle have to be considered when defining the operating parameters of the accelerator system as a whole. At Argonne National Laboratory (ANL), an ECR charge breeder was developed as part of the Californium Rare Ion Breeder Upgrade (CARIBU) program. The charge breeding efficiency and high charge state production of the source is at the forefront of ECR charge breeders, but its overall performance as part of the accelerator system is limited by pervasive background and relatively long breeding times. As such, an EBIS charge breeder has been developed and is running in an off-line configuration. It has already demonstrated good breeding efficiencies, shorter residence times, and reduced background and is scheduled to replace the ECR charge breeder in late 2015. The resultant change in duty cycle and time structure necessitates changes to the overall operation of the facility. The experiences with these breeders, as well as from several other facilities which already utilize an ECR or EBIS for charge breeding, help to define the operational characteristics of each technology - their strengths, their weaknesses, and the possible paths to improvement.

  5. Report on the workshop "Decay spectroscopy at CARIBU: advanced fuel cycle applications, nuclear structure and astrophysics". 14-16 April 2011, Argonne National Laboratory, USA.

    Energy Technology Data Exchange (ETDEWEB)

    Kondev, F.; Carpenter, M.P.; Chowdhury, P.; Clark, J.A.; Lister, C.J.; Nichols, A.L.; Swewryniak, D. (Nuclear Engineering Division); (Univ. of Massachusetts); (Univ. of Surrey)

    2011-10-06

    A workshop on 'Decay Spectroscopy at CARIBU: Advanced Fuel Cycle Applications, Nuclear Structure and Astrophysics' will be held at Argonne National Laboratory on April 14-16, 2011. The aim of the workshop is to discuss opportunities for decay studies at the Californium Rare Isotope Breeder Upgrade (CARIBU) of the ATLAS facility with emphasis on advanced fuel cycle (AFC) applications, nuclear structure and astrophysics research. The workshop will consist of review and contributed talks. Presentations by members of the local groups, outlining the status of relevant in-house projects and availabile equipment, will also be organized. time will also be set aside to discuss and develop working collaborations for future decay studies at CARIBU. Topics of interest include: (1) Decay data of relevance to AFC applications with emphasis on reactor decay heat; (2) Discrete high-resolution gamma-ray spectroscopy following radioactive decya and related topics; (3) Calorimetric studies of neutron-rich fission framgents using Total ABsorption Gamma-Ray Spectrometry (TAGS) technique; (4) Beta-delayed neutron emissions and related topics; and (5) Decay data needs for nuclear astrophysics.

  6. Preliminary Identification of Three New Isolates in Genus Alexandrium (Dinophyceae) from China Sea Area

    Institute of Scientific and Technical Information of China (English)

    FAN Lijing; SUI Zhenghong; MAO Yunxiang; GUO Hao

    2007-01-01

    The 5.8 S ribosomal DNA sequences (5.8S rDNA) and their flanking regions, internal transcribed spacer 1 and spacer 2(ITS1 and ITS2) of three new isolates in genus Alexandrium (Alexandrium sp. qdl, Alexandrium sp. qd2, Alexandrium sp. gz) from China were amplified, sequenced, and subjected to phylogenetic analysis. Alexandrium sp. gz and Alexandrium sp. qdl were grouped with high bootstrap values with four strains/species, i.e., A. catenella South Korea strain, A. catenella Japan strain, and two from China, Alexandrium sp. AC03 and Alexandrium sp. AN01 being proposed to be A. catenalla in a previous study. Then Alexandrium sp. gz and Alexandrium sp. qdl were identified as Alexandrium catenella. As A. catenella was isolated from Qingdao and Guangzhou sea areas, it supposedly distributed at least in these two areas and was genetically different. Alexandrium sp. qd2 differed greatly from species in Alexandrium. It clustered with Symbiodinium californium, Symbiodinium sp. Gl5 and Gymnodinium sp. Zhao 01 with 100% bootstrap value; so Alexandrium sp. qd2 affiliates to genus Symbiodinium, and is probably a free-living Symbiodinium species.

  7. Extraction studies of selected actinide ions from aqueous solutions with 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione and tri-n-octylphosphine oxide

    Energy Technology Data Exchange (ETDEWEB)

    Hannink, N.J.; Hoffman, D.C. [Lawrence Berkeley Lab., CA (United States)]|[California Univ., Berkeley, CA (United States). Dept. of Chemistry; Smith, B.F. [Los Alamos National Lab., NM (United States)

    1991-11-01

    The first measurements of distribution coefficients (K{sub d}) for Cm(III), Bk(III), Cf(III), Es(III), and Fm(III) between aqueous perchlorate solutions and solutions of 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT) and the synergist tri-n-octylphosphine oxide (TOPO) in toluene are reported. Curium-243, berkelium-250, californium-249, einsteinium-254, and fermium-253 were used in these studies. The K{sub d} for {sup 241}Am was also measured and is in agreement with previously published results. Our new results show that the K{sub d}`s decrease gradually with increasing atomic number for the actinides with a dip at Cf. In general, the K{sub d}`s for these actinides are about a factor of 5 to 10 greater than the K{sub d}`s for the homologous lanthanides at a pH of 2.9, a BMPPT concentration of 0.2 M, and a TOPO concentration of 0.04 M. The larger K{sub d}`s for the actinides are consistent with greater covalent bonding between the actinide metal ion and the sulfur bonding site in the ligand.

  8. Extraction studies of selected actinide ions from aqueous solutions with 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione and tri-n-octylphosphine oxide

    Energy Technology Data Exchange (ETDEWEB)

    Hannink, N.J.; Hoffman, D.C. (Lawrence Berkeley Lab., CA (United States) California Univ., Berkeley, CA (United States). Dept. of Chemistry); Smith, B.F. (Los Alamos National Lab., NM (United States))

    1991-11-01

    The first measurements of distribution coefficients (K{sub d}) for Cm(III), Bk(III), Cf(III), Es(III), and Fm(III) between aqueous perchlorate solutions and solutions of 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT) and the synergist tri-n-octylphosphine oxide (TOPO) in toluene are reported. Curium-243, berkelium-250, californium-249, einsteinium-254, and fermium-253 were used in these studies. The K{sub d} for {sup 241}Am was also measured and is in agreement with previously published results. Our new results show that the K{sub d}'s decrease gradually with increasing atomic number for the actinides with a dip at Cf. In general, the K{sub d}'s for these actinides are about a factor of 5 to 10 greater than the K{sub d}'s for the homologous lanthanides at a pH of 2.9, a BMPPT concentration of 0.2 M, and a TOPO concentration of 0.04 M. The larger K{sub d}'s for the actinides are consistent with greater covalent bonding between the actinide metal ion and the sulfur bonding site in the ligand.

  9. Extraction studies of selected actinide ions from aqueous solutions with 4-benzoyl-2,4-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione and Tri-n-octylphosphine oxide

    Energy Technology Data Exchange (ETDEWEB)

    Hannink, N.J.; Hoffman, D.C. [Lawrence Berkeley Lab., CA (United States); Smith, B.F. [Los Alamos National Lab., NM (United States)

    1992-07-01

    The first measurements of distribution coefficients (k{sub d}) for Cm(III), Bk(III), Cf(III), Es(III), and Fm(III) between aqueous perchlorate solutions and solutions of 4-benzoyl-2,4-dihydro-5-methyl-2-phenyl-3H-pyrazol-3-thione (BMPPT) and the synergist tri-n-octylphosphine oxide (TOPO) in toluene are reported. Curium-243, berkelium-250, californium-249, einsteinium-254, and fermium-253 were used in these studies. The K{sub d} for {sup 241}Am was also measured and is in agreement with previously published results. Our new results show that the K{sub d}`s decrease gradually with increasing atomic number for the actinides with a dip at Cf. In general, the K{sub d}`s for these actinides are about about a factor of 10 greater than the K{sub d}`s for the homologous lanthanides at a pH of 2.9, a BMPPT concentration of 0.2 M, and a TOPO concentration of 0.04 M. The larger K{sub d}`s for the actinides are consistent with greater covalent bonding between the actinide metal ion and the sulfur bonding site in the ligand. 9 refs., 2 figs., 1 tab.

  10. A carbon cluster ion source for mass calibration at TRIGA-TRAP

    International Nuclear Information System (INIS)

    TRIGA-TRAP is a high-precision penning trap mass spectrometer installed at the research reactor TRIGA Mainz in order to determine the masses of short-lived fission products and - in addition to that - also the masses of actinide elements ranging from uranium up to californium. In order to determine precisely the masses of the nuclides of interest, the superconducting magnet providing the strong magnetic field for the Penning trap has to be calibrated by measuring the cyclotron frequency of an ion with well-known mass, which is, if possible, an isobaric nuclide of the ion of interest. Therefore, the best possible choice for mass calibration is to use carbon clusters as mass references, as demonstrated at the ISOLTRAP facility at ISOLDE/CERN. A laser ablation ion source for the production of carbon clusters has been developed using a frequency-doubled Nd:YAG laser. The design, current status, and results of the production of carbon cluster ions, using C60 and Sigradure registered samples, as well as other ions are presented

  11. Perspectives for online analysis of raw material by pulsed neutron irradiation

    Science.gov (United States)

    Bach, Pierre; Le Tourneur, P.; Poumarede, B.

    1997-02-01

    On-line analysis by pulsed neutron irradiation is an example of an advanced technology application of nuclear techniques, concerning real problems in the cement, mineral and coal industries. The most significant of these nuclear techniques is their capability of continuous measurement without contact and without sampling, which can lead to improved control of processes and resultant large financial savings. Compared to Californium neutron sources, the use of electrical pulsed neutron generators allows to obtain a higher signal/noise ratio for a more sensitive measurement, and allows to overcome a number of safety problems concerning transportation, installation and maintenance. An experiment related to a possible new on-line raw material analyzer is described, using a pulsed neutron generator. The key factors contributing to an accurate measurement are related to a suitable generator, to a high count rate gamma ray spectroscopy electronics, and to computational tools. Calculation and results for the optimization of the neutron irradiation time diagram are reported. One of the operational characteristics of such an equipment is related to neutron flux available: it is possible to adjust it to the requested accuracy, i.e. for a high accuracy during a few hours/day and for a lower accuracy the rest of the time. This feature allows to operate the neutron tube during a longer time, and then to reduce the cost of analysis.

  12. A review of neutron scattering correction for the calibration of neutron survey meters using the shadow cone method

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Sang In; Kim, Bong Hwan; Kim, Jang Lyul; Lee, Jung Il [Health Physics Team, Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2015-12-15

    The calibration methods of neutron-measuring devices such as the neutron survey meter have advantages and disadvantages. To compare the calibration factors obtained by the shadow cone method and semi-empirical method, 10 neutron survey meters of five different types were used in this study. This experiment was performed at the Korea Atomic Energy Research Institute (KAERI; Daejeon, South Korea), and the calibration neutron fields were constructed using a {sup 252}Californium ({sup 252}Cf) neutron source, which was positioned in the center of the neutron irradiation room. The neutron spectra of the calibration neutron fields were measured by a europium-activated lithium iodide scintillator in combination with KAERI's Bonner sphere system. When the shadow cone method was used, 10 single moderator-based survey meters exhibited a smaller calibration factor by as much as 3.1 - 9.3% than that of the semi-empirical method. This finding indicates that neutron survey meters underestimated the scattered neutrons and attenuated neutrons (i.e., the total scatter corrections). This underestimation of the calibration factor was attributed to the fact that single moderator-based survey meters have an under-ambient dose equivalent response in the thermal or thermal-dominant neutron field. As a result, when the shadow cone method is used for a single moderator-based survey meter, an additional correction and the International Organization for Standardization standard 8529-2 for room-scattered neutrons should be considered.

  13. Review of the accomplishments and promise of US transplutonium research, 1940-1981

    International Nuclear Information System (INIS)

    It has been just over 40 years since the identification of plutonium by Seaborg, McMillan, Kennedy, and Wahl at the University of California, Berkeley. This discovery, and the isolation of plutonium-239 a year later by Kennedy, Seaborg, Segre, and Wahl, laid the cornerstone of one of the most exciting and productive eras of research in American history - research on the transplutonium elements. This research was to span all fields of natural science, and indeed was to have many implications and applications in the biological sciences. In this brief document, we have attempted to touch on only some of the many achievements of the US heavy element program. Many of those whose work has been at the heart of this research have contributed to this report. They have summarized some of what was scientifically important and exciting and they have suggested some of the topics of important research remaining to be done. The following topics are covered in this review: historical account; plutonium; synthesis of transplutonium isotopes; nuclear fission and stability, heavy ion reactions and nuclear structure; chemistry of the transplutonium elements; optical and magnetic properties; electronic structure and solid state properties; environmental and biological behavior of transplutonium elements; heavy element production; application of californium-252

  14. Time-of-flight mass spectrometry with desorption-ionization multiprobes (UV photons and KeV and MeV particles). Cluster atoms are used as projectiles

    International Nuclear Information System (INIS)

    A new time-of-flight mass spectrometer, Super-Depil, is used to study secondary ion emission from solid surfaces bombarded by various kinds of primary particles. Three different desorption probes were set up on this machine: a 252 californium source, providing by spontaneous fission about 1 MeV/u energy heavy ions, a 5 to 30 keV energy pulsed caesium ion gun and a pulsed nitrogen laser, which wavelength is 337 mm. A two stages electrostatic mirror was added to the spectrometer. The time spread due to the initial kinetic energy of secondary ions leaving the surface was minimized. The mass resolution is greater than 5000. The analysis of glycosidic terpenes showed the complementarity of the three probes. The study of such metastable ions, with the electrostatic mirror, showed that some fragment ions may conserve the memory of the stereochemistry of the neutral lost. Clusters ions were used as projectiles in the energy range 5-60 keV. A strong non linear enhancement was observed in the secondary ion yield from various targets

  15. Compensated bismuth-loaded plastic scintillators for neutron detection using low-energy pseudo-spectroscopy

    Science.gov (United States)

    Dumazert, Jonathan; Coulon, Romain; Bertrand, Guillaume H. V.; Normand, Stéphane; Méchin, Laurence; Hamel, Matthieu

    2016-05-01

    Gadolinium-covered modified plastic scintillators show a high potential for the deployment of cost-effective neutron detectors. Taking advantage of the low-energy photon and electron signature of thermal neutron captures in gadolinium-155 and gadolinium-157 however requires a background correction. In order to display a trustable rate, dual compensation schemes appear as an alternative to Pulse Shape Discrimination. This paper presents the application of such a compensation scheme to a two-bismuth loaded plastic scintillator system. A detection scintillator interacts with incident photon and fast neutron radiations and is covered with a gadolinium converter to become thermal neutron-sensitive as well. In the meantime, an identical compensation scintillator, covered with terbium, solely interacts with the photon and fast neutron part of incident radiations. After the acquisition and the treatment of the counting signals from both sensors, a hypothesis test determines whether the resulting count rate after subtraction falls into statistical fluctuations or provides a robust image of neutron activity. A laboratory prototype is tested under both photon and neutron radiations, allowing us to investigate the performance of the overall compensation system. The study reveals satisfactory results in terms of robustness to a cesium-137 background and in terms of sensitivity in presence of a californium-252 source.

  16. Neutron spectra at the outlet from the labyrinths in the IHEP proton synchrotron biological shield

    International Nuclear Information System (INIS)

    Neutron spectra in transport and cable labyrinths of concrete shielding were measured. It was related with planned increase of proton beam intensity in the IHEP synchrotron and the necessity of searching isotope radiation sources suitable for simulation of fields of neutron radiation in the accelerator biological shield. Multisphere Bonner spectrometer with 6LiI(Eu) monocrystal of 10x10 mm size as thermal neutron detector and a set of seven cadmium-plated polyethylene thermalizing spheres 2, 3, 5, 8, 10, 12 and 18 inch in diameter was used for measurement. Measurements were conducted at 100 MeV, 8 and 70 GeV proton energies. Analysis of obtained data shows that the average energy of neutron spectra increases at the outlet from the labyrinths from 110 up to 390 keV with growth of accelerated proton energy from 100 MeV up to 70 GeV. Neutron spectra are similar with respect to form and component composition at one and the same energy of accelerated particles and the same shield material regardless of labyrinth configuration. The shares of fast and interiediate neutrons equal about 10 and 90% respectively. It was concluded that neutron radiation fields typical for the labyrinths of the IHEP synchrotron yield can be simulated in model labyrinths with the use of californium-252 source

  17. 1982 US-CEC neutron personnel dosimetry intercomparison study

    International Nuclear Information System (INIS)

    A neutron personnel dosimetry intercomparison study was conducted during April 19-23, 1982, as a joint effort between the United States and the Commission of European Communities. Dosimeters from 48 participating agencies were mounted on cylindrical phantoms and exposed to a range of low-level dose equivalents (0.48-13.91 mSv neutron and 0.02-1.32 mSv gamma) in nine different radiation fields. Exposure conditions considered in this study included four mixed-field spectra produced using the Health Physics Research Reactor, four monoenergetic neutron fields generated by accelerators, and one 15-cm D2O-moderated californium source spectrum. In general, neutron results reported by the participating agencies were consistent with expected dosimeter performance based on energy response characteristics of the detection systems. Albedo dosimeters, which were the most popular neutron monitoring systems used in this study, provided the best overall accuracy for all exposure conditions. Film, Cr-39 recoil track, and Th-232 fission track systems generally underestimated dose equivalents relative to reference values. Associated gamma measurements showed that TLD monitors produced more accurate results than film dosimeters although both systems overestimated gamma dose equivalents in mixed radiation fields. 24 references, 10 figures, 19 tables

  18. Heavy weight concrete with special mixes for neutron attenuation

    International Nuclear Information System (INIS)

    This work is concerned with the study of the attenuation properties of special mixes of magnetite concrete for fast and thermal neutrons. Investigations were carried out using a collimated beam of neutrons emitted from Pu-α-Be and Californium-252 neutron sources. The fast spectra of neutrons were measured by a scintillation spectrometer with stilbene crystal. Discrimination against undesired pulses of neutrons or gamma -rays was achieved by a zero crossover method. The thermal neutron fluxes were measured by a BF3 detector. The obtained data are displayed in the form of spectra for fast neutrons and attenuation relations for thermal neutrons.The thermal neutron fluxes were measured using bare beam and beams filtered by 113 Cd and B4 C filters to discuss the origin of thermal neutrons interacting with the concrete samples. The obtained results were also used to derive the attenuation coefficients for total thermal neutrons and for newly produced thermal neutrons resulting from neutron beams filtered by 113 Cd and B4 C in the different magnetite concrete shields of different thicknesses.

  19. An Account of Oak Ridge National Laboratory's Thirteen Research Reactors

    Energy Technology Data Exchange (ETDEWEB)

    Rosenthal, Murray Wilford [ORNL

    2009-08-01

    The Oak Ridge National Laboratory has built and operated 13 nuclear reactors in its 66-year history. The first was the graphite reactor, the world's first operational nuclear reactor, which served as a plutonium production pilot plant during World War II. It was followed by two aqueous-homogeneous reactors and two red-hot molten-salt reactors that were parts of power-reactor development programs and by eight others designed for research and radioisotope production. One of the eight was an all-metal fast burst reactor used for health physics studies. All of the others were light-water cooled and moderated, including the famous swimming-pool reactor that was copied dozens of times around the world. Two of the reactors were hoisted 200 feet into the air to study the shielding needs of proposed nuclear-powered aircraft. The final reactor, and the only one still operating today, is the High Flux Isotope Reactor (HFIR) that was built particularly for the production of californium and other heavy elements. With the world's highest flux and recent upgrades that include the addition of a cold neutron source, the 44-year-old HFIR continues to be a valuable tool for research and isotope production, attracting some 500 scientific visitors and guests to Oak Ridge each year. This report describes all of the reactors and their histories.

  20. Detection of thermal neutrons with a CMOS pixel sensor for a future dosemeter

    Energy Technology Data Exchange (ETDEWEB)

    Vanstalle, M.; Husson, D.; Higueret, S.; Le, T. D.; Nourreddine, A. M. [Institut Pluridisciplinaire Hubert Curien, Univ. of Strasbourg, CNRS, 67037 Strasbourg (France)

    2011-07-01

    The RaMsEs group (Radioprotection et Mesures Environnementales) is developing a new compact device for operational neutron dosimetry. The electronic part of the detector is made of an integrated active pixel sensor, originally designed for tracking in particle physics. This device has useful features for neutrons, such as high detection efficiency for charged particles, good radiation resistance, high readout speed, low power consumption and high rejection of photon background. A good response of the device to fast neutrons has already been demonstrated [1]. In order to test the sensibility of the detector to thermal neutrons, experiments have been carried out with a 512 x 512 pixel CMOS sensor on a californium source moderated with heavy water (Cf.D{sub 2}O) on the Van Gogh irradiator at the LMDN, IRSN, Cadarache (France)). A thin boron converter is used to benefit from the significant cross section of the {sup 10}B (n,{alpha}) {sup 7}Li reaction. Results show a high detection efficiency (around 10{sup -3}) of the device to thermal neutrons. Our measurements are in good agreement with GEANT4 Monte Carlo simulations. (authors)

  1. THERMODYNAMICS OF THE ACTINIDES

    Energy Technology Data Exchange (ETDEWEB)

    Cunningham, Burris B.

    1962-04-01

    Recent work on the thermodynamic properties of the transplutonium elements is presented and discussed in relation to trends in thermodynamic properties of the actinide series. Accurate values are given for room temperature lattice parameters of two crystallographic forms, (facecentred cubic) fcc and dhcp (double-hexagonal closepacked), of americium metal and for the coefficients of thermal expansion between 157 and 878 deg K (dhcp) and 295 to 633 deg K (fcc). The meiting point of the metal, and its magnetic susceptibility between 77 and 823 deg K are reported and the latter compared with theoretical values for the tripositive ion calculated from spectroscopic data. Similar data (crystallography, meiting point and magnetic susceptibility) are given for metallic curium. A value for the heat of formation of americium monoxide is reported in conjunction with crystallographic data on the monoxide and mononitride. A revision is made in the current value for the heat of formation of Am/O/sub 2/ and for the potential of the Am(III)-Am(IV) couple. The crystal structures and lattice parameters are reported for the trichloride, oxychloride and oxides of californium. (auth)

  2. Gray Level of FIC using Zero-Mean Method

    Directory of Open Access Journals (Sweden)

    Eman A. Al-Hilo

    2014-09-01

    Full Text Available In this work, a fractal image compression (FIC based on zero-mean block matching method is adopted. In this method the mean of the range blocks is used instead of traditional offset parameter. The parameter ( has a smaller dynamic range [0,255] than the (o parameter [-255,511] which using in traditional method. This may cause large errors in some image regions (or points especially those which belong to high contrast area. Replace this factors also reduces and simplifies the computations of the affine parameters during the encoding process. The test results conducted on 24 bits/pixel gray Cat image indicated that the encoding time (7.47 sec, compression ratio (5.63 ,PSNR (35.16

  3. Removal of Salt and Pepper Noise through Unsymmetric Trimmed Median Filter

    Directory of Open Access Journals (Sweden)

    R. R. Kadam

    2014-01-01

    Full Text Available Here a modified decision based unsymmetrical trimmed median filter algorithm for the restoration of gray scale, and colour images that are highly corrupted by salt and pepper noise is proposed. This algorithm replaces the noisy pixel by trimmed median value when other pixel values, 0’s and 255’s are present in the selected window and when all the pixel values are 0’s and 255’s then the noise pixel is replaced by mean value of all the elements present in the selected window. This proposed algorithm shows better results than the Standard Median Filter (MF, Decision Based Algorithm (DBA, Modified Decision Based Algorithm (MDBA, and Progressive Switched Median Filter (PSMF. The proposed algorithm is tested against different gray scale and colour images and it gives better Peak Signal-to-Noise Ratio (PSNR and Image Enhancement Factor (IEF.

  4. First Results From the Large Binocular Telescope: Deep Photometry of New dSphs

    CERN Document Server

    Coleman, Matthew G

    2007-01-01

    This contribution describes photometry for two Galactic dSphs obtained with the Large Binocular Telescope to a magnitude of ~25.5. Using the Large Binocular Camera, a purpose-built wide-field imager for the LBT, we have examined the structure and star formation histories of two newly-discovered Local Group members, the Hercules dSph and the Leo T dSph/dIrr system. We have constructed a structural map for the Hercules system using three-filter photometry to V ~ 25.5. This is the first deep photometry for this system, and it indicates that Hercules is unusually elongated, possibly indicating distortion due to the Galactic tidal field. We have also derived the first star formation history for the Leo T system, and find that its oldest population of stars (age ~ 13 Gyr) were relatively metal-rich, with [Fe/H] ~ -1.5.

  5. Two-Pipe Chilled Beam System for Both Cooling and Heating of Office Buildings

    DEFF Research Database (Denmark)

    Afshari, Alireza; Gordnorouzi, Rouzbeh; Hultmark, Göran;

    2013-01-01

    . The building model had a net volume of 3669 m3, (L*B: 25.5m*11.5 m) and net ceiling height of 2.55 m. The building model was assumed to consist of 78 office rooms, 6 meeting rooms and 5 corridors with a 50% occupancy. Simulations were executed using Bsim, an energy simulation program, to calculate the energy...... advantage of renewable energy. The results showed that the energy consumption was 3% less in the 2-pipe chilled beam system in comparison with the conventional 4-pipe system when moving cooled and heated water through the building, transferring the energy to where it is needed. Using free cooling (taking......Simulations were performed to compare a conventional 4-pipe chilled beam system and a 2-pipe chilled beam system. The objective was to establish requirements, possibilities and limitations for a well-functioning 2-pipe chilled beam system for both cooling and heating of office buildings...

  6. Investigation of 11B+197Au Reaction at Intermediate Energies

    CERN Document Server

    Karapetyan, G S; Balabekyan, A R

    2016-01-01

    Mechanism of nuclear reactions on 197Au induced by 11B ions at energies above Coulomb barrier was studied by induced-activity method and gamma-spectroscopy. The cross sections of the reaction fragments from 197Au induced by 11B ions were measured at bombarding energies 137.5 and 255.5 MeV. The fission process was investigated by using multimodal fission approach at the energy 137.5 MeV, and pure symmetric distribution at 255.5 MeV. It was observed that the transferred linear momentum provides the information on the initial projectile-target information. The fissility for both fission reactions under study was deduced from measured fission cross section using the total inelastic cross section. Comparison with proton-induced fission shown, that the linear momentum transferred to the fissile system depends on the probe.

  7. Covalent cross-linking of insulin-like growth factor-1 to a specific inhibitor from human serum

    International Nuclear Information System (INIS)

    Previous studies have shown that a specific inhibitor of insulin-like growth factor (IGF) action in vitro can be isolated from normal human serum and subsequently partially purified on an IGF-affinity column. The ability of the inhibitor to bind the IGFs has now been confirmed directly using covalent cross-linking techniques. When 125I-IGF-1 was cross-linked to inhibitor using disuccinimidyl suberate, five specifically labelled bands were seen on SDS-PAGE and autoradiography. Two bands (MW 21.5 K and 25.5 K) were intensely labelled, while the remaining three (MW 37 K, 34 K and 18 K) appeared as minor bands only. Inhibitor bioactivity, following further analysis by hydrophobic interaction chromatography or Con A-Sepharose affinity chromatography, was always associated with the presence of the 21.5 K and/or 25.5 K bands

  8. 酸改性沸石去除高浓度甲醛废水的研究%Removal Formaldehyde from High Concentration Wastewater by Acid Modified Zeolite

    Institute of Scientific and Technical Information of China (English)

    柯振刚; 祁翠翠

    2011-01-01

    The acid modified zeolite were prepared by hydrochloric acid and natural zeolite.The adsorption of acid modified zeolite to formaldehyde was studied through static experiments.The results indicated that when pH was 6.5,the statically saturated adsorption capacity was 255 mg/g at 293 K.It spent 2 h to reach adsorption equilibrium.%用盐酸对天然沸石进行改性得到酸改性沸石,通过静态吸附实验研究了酸改性沸石对废水中甲醛的吸附性能。研究表明在293 K时,酸改性沸石对甲醛的平衡吸附量为255 mg/g,最佳吸附pH值为6.5,吸附平衡时间为2 h。

  9. High definition in vivo retinal volumetric video rate OCT at 0.6 Giga-voxels per second

    Science.gov (United States)

    Kolb, Jan Philip; Klein, Thomas; Wieser, Wolfgang; Draxinger, Wolfgang; Huber, Robert

    2015-07-01

    We present full volumetric high speed OCT imaging of the retina with multiple settings varying in volume size and volume rate. The volume size ranges from 255x255 A-scans to 160x40 A-scans with 450 samples per depth scan with volume rates varying between 20.8 V/s for the largest volumes to 195.2 V/s for the smallest. The system is based on a 1060nm Fourier domain mode locked (FDML) laser with 1.6MHz line rate. Scanning along the fast axis is performed with a 2.7 kHz or 4.3 kHz resonant scanner operated in bidirectional scanning mode, while a standard galvo scanner is used for the slow axis. The performance is analyzed with respect to various potential applications, like intraoperative OCT.

  10. Long-term impact of interferon beta-1b in patients with CIS

    DEFF Research Database (Denmark)

    Edan, G; Kappos, L; Montalbán, X;

    2014-01-01

    period (HR 0.678; 95% CI 0.525 to 0.875; p=0.0030), a longer median time to CDMS by 1345 days (95% CI 389 to 2301), and a lower annualised relapse rate (0.196 (95% CI 0.176 to 0.218) versus 0.255 (95% CI 0.226 to 0.287), p=0.0012), with differences mainly emerging in the first year of the study...

  11. Particularities of family planning in women with mental disorders Particularidades de la planificación familiar de mujeres portadoras de trastorno mental Particularidades do planejamento familiar de mulheres portadoras de transtorno mental

    OpenAIRE

    Tatiane Gomes Guedes; Escolástica Rejane Ferreira Moura; Paulo César de Almeida

    2009-01-01

    The study aimed to identify the gynecological and obstetric profile of women with mental disorders; to verify the association between medical diagnosis of mental disorder and correct/incorrect use of contraceptive methods, and verify diagnoses, frequency of hospitalizations and varieties of medication consumed. Participants were 255 women who received care in a Psychosocial Care Service. Data were collected through medical record review and structured interview. The inheritance of some mental...

  12. With Whom and Where You Play: Preschoolers’ Social Context Predicts Peer Victimization

    OpenAIRE

    Andrews, Naomi C. Z.; Hanish, Laura D.; Fabes, Richard A.; Martin, Carol Lynn

    2013-01-01

    This short-term longitudinal study assessed the relations between the social context of children’s play (play-group size, play-group gender composition, and play setting) in the fall and peer victimization in the spring for low-income, minority, preschool girls and boys. Gender differences in these associations, as well as the moderating effect of children’s individual problem behavior, were considered. Using a multiple-brief observation procedure, preschoolers’ (N = 255, 49% girls) naturally...

  13. MIMO communications within the HF band using compact antenna arrays.

    OpenAIRE

    Gunashekar, S.D.; Warrington, E. M.; Feeney, S. M.; Salous, S.; Abbasi, N.M.

    2010-01-01

    Measurements have been made over a 255 km radio path between Durham and Leicester in the UK in order to investigate the potential applicability of multiple input multiple output (MIMO) techniques to communications within the HF band. This paper describes the results from experiments in which compact heterogeneous antenna arrays have been employed. The results of these experiments indicate that traditional spaced HF antenna arrays can be replaced by compact, active, heterogeneous arrays in ord...

  14. Analysis of the Cytisetea scopario-striati scrubs in the south-west-centre of the Iberian Peninsula

    OpenAIRE

    Pinto-Gomes, Carlos; Cano-Ortiz, Ana; Quinto-Canas, Ricardo; Vila-Viçosa, Carlos; Lombardo, Mª C. Martínez

    2012-01-01

    The statistical and phytosociological study of 255 relevés taken in the south-west of the Iberian Peninsula and made up of our own samples and previous publications reveals how close these relevés, previously ascribed to different syntaxa, really are. Our re-arrangement of the data leads us to propose for the territory the 15 associations already published and three new ones, namely: Genisto floridae-Adenocarpetum argyrophylli ass. nova hoc loco, Cytisetum bourgaei- eriocarpi nova...

  15. Math Skills and Executive Functioning in Preschool: Clinical and Ecological Evaluation

    OpenAIRE

    Presentación Herrero, María Jesús; Siegenthaler Hierro, Rebeca; Pinto Tena, Vicente; Mercader, Jessica; Miranda Casas, Ana

    2015-01-01

    This study compares the relationship between executive functioning, analyzed with clinical and ecological tests, and math skills in preschoolers. The children (255 children 5 to 6 years old) were evaluated using neuropsychological tests of inhibition, and working memory and the TEDI-MATH to estimate basic mathematical skills. The ecological evaluation of the executive functioning by the parents and teachers was carried out with the Behavioral Rating Inventory of Executive Function (BRIEF). Co...

  16. Study of Reed-Solomon correction for mass memory

    Science.gov (United States)

    Newman, B.; Hutton, S. J.

    1992-03-01

    Logica has performed a study of Reed-Solomon coding in the context of protecting a mass memory in the harsh space environment, e.g., against galactic cosmic rays and heavy ion rich solar flares. The study examined the relation between the final bit error rate, the rate at which the code is used to scrub errors from the memory, and the rate at which errors occur. The RS(255,252) code was considered.

  17. Validating the Rett Syndrome Gross Motor Scale

    OpenAIRE

    Jenny Downs; Michelle Stahlhut; Kingsley Wong; Birgit Syhler; Anne-Marie Bisgaard; Peter Jacoby; Helen Leonard

    2016-01-01

    Rett syndrome is a pervasive neurodevelopmental disorder associated with a pathogenic mutation on the MECP2 gene. Impaired movement is a fundamental component and the Rett Syndrome Gross Motor Scale was developed to measure gross motor abilities in this population. The current study investigated the validity and reliability of the Rett Syndrome Gross Motor Scale. Video data showing gross motor abilities supplemented with parent report data was collected for 255 girls and women registered with...

  18. Social Network as predictor for onset of alcohol use disorder

    DEFF Research Database (Denmark)

    Mikkelsen, Stine Schou; Tolstrup, Janne; Becker, Ulrik;

    2015-01-01

    , were separated or divorced or widowers had a higher risk of developing alcohol use disorder: HR among men living alone vs. men not living alone was 2.28 (95% CI: 1.59–3.27), and HR among separated/divorced men vs. married men was 2.55 (95% CI: 1.33–4.89). No such associations were found among women...

  19. Identification and determination of ketotifen hydrogen fumarate, azelastine hydrochloride, dimetindene maleate and promethazine hydrochloride by densitometric method.

    Science.gov (United States)

    Wyszomirska, Elzbieta; Czerwińska, Krystyna; Kublin, Elzbieta; Mazurek, Aleksander P

    2013-01-01

    Conditions for determination of: ketotifen hydrogen fumarate, azelastine hydrochloride, dimetindene maleate and promethazine hydrochloride by densitometric method in substances and pharmaceuticals were provided. Maximum wavelenghts were: 228 nm for ketotifen hydrogen fumarate, 295 nm for azelastine hydrochloride, 265 nm for dimetindene maleate and 255 nm for promethazine hydrochloride. The limits of quantification were in the ranges of 0.2-5 microg/spot. The statistical data showed adequate accuracy and precision of developed methods. PMID:24383318

  20. Low-cost, flexible graphene/polyaniline nanocomposite paper as binder-free high-performance supercapacitor electrode

    Science.gov (United States)

    Wang, Li; Lv, Siliu; Zhang, Jianming; Zhang, Chuanjian; Dong, Shanmu; Kong, Qingshan; Pang, Shuping

    2014-11-01

    Nanopolyaniline coated graphene (GNP) was synthesized and flexible composite paper based on as-prepared GNP composite was fabricated by rolling process. Uniform PANI nanocoating prevents the graphene sheets from re-stacking during paper fabrication under high pressure. The composite paper was directly used as the supercapacitor without adding any binder and a specific capacitance of 255 F g-1 was achieved with high rate retention.

  1. Assessment of the Adoption Rate of Technologies among Fadama III Farmers in Adamawa State, Nigeria

    OpenAIRE

    Umar, AdamuMadu

    2013-01-01

    The study was conducted in Adamawa State, Nigeria. The major thrust of this study is to assess the adoption rate of technology in Fadama III. In its four years of operation, Fadama III project has realized significant impact on household access to new and proven technologies. Adoption rate of technologies among beneficiaries has increased from 43.75% before the inception of the project to 96.255% after the project intervention. This indicates 50% increase against only 20% increase among the n...

  2. 42 CFR 84.256 - Quality control requirements.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Quality control requirements. 84.256 Section 84.256... § 84.256 Quality control requirements. (a) In addition to the construction and performance requirements specified in §§ 84.251, 84.252, 84.253, 84.254, and 84.255, the quality control requirements in...

  3. When is Concentration Beneficial?

    OpenAIRE

    Liron-Espana, Carmen; Lopez, Rigoberto A.

    2001-01-01

    This paper separates market power and efficiency effects of concentration in a sample of 255 U.S. manufacturing industries and computes welfare changes from rises in concentration. The empirical findings reveal that in nearly two-third of the cases, consumers lose as efficiency gains are generally pocketed by the industries. From an aggregate welfare standpoint, concentration is found to be beneficial in nearly 70% of the cases, mostly for low and moderate levels of concentration being partic...

  4. Insect and legume-based protein sources to replace soybean cake in an organic broiler diet: Effects on growth performance and physical meat quality

    OpenAIRE

    Leiber, Florian; Gelencsér, Tobias; Stamer, Andreas; Amsler, Zivile; Wohlfahrt, Jens; Früh, Barbara; Maurer, Veronika

    2015-01-01

    Protein sources other than soybean for the diets of poultry are needed for agricultural systems in temperate regions to help avoid some negative social and ecological impacts of large-scale soybean imports from overseas. The aim of the present study was to test the suitability of alternative protein sources in diets for slow-growing organic broiler chicken. Four experimental broiler diets were tested against a commercial feed for organic broiler chicken fattening (control), containing 255 ...

  5. Mining-induced displacement and resettlement: social problem and human rights issue

    OpenAIRE

    Terminski, Bogumil

    2012-01-01

    Mining is currently not a statistically significant category of development-induced displacement. Nevertheless, the social costs of exploitation are great, and that is why the topic is worthy of a wider and more profound scientific analysis. The first displacement caused by mining dates back to the late nineteenth century. As pointed out by Walter Fernandes, in the Indian region of Jarkhand alone, mining has led to the displacement of 2.55 million people. Contrary to the opinions ...

  6. Mechanical Properties and Morphology of Recycled PET Flakes Toughened by ABS%ABS增韧废PET饮料瓶片的性能与形态研究

    Institute of Scientific and Technical Information of China (English)

    陈智军; 王益龙; 郑辰

    2012-01-01

    Mechanical properties and morphology of recycled PET (r-PET) bottle flakes toughened by ABS were studied with melt extrusion. The experimental results indicate that reactive extruder is superior to twin-screw extruder in mixing effect; the optimum extrusion temperature is 245, 260, 255, 255, 240 ℃, and the optimum screw speed is 80 r/min; ABS disperses uniformly in r-PET continuous phase as spherical particle when its proportion is below 30%; the r-PET/ABS (80/20) shows the best mechanical properties in all, its tensile strength, non-notched impact strength and notched impact strength increase by 10 Mpa, 6 times, and near 1 time respectively compared with pure r-PET.%采用熔融挤出的方法研究了丙烯腈-丁二烯-苯乙烯共聚物( ABS)增韧废聚对苯二甲酸乙二醇酯(r-PET)饮料瓶片的力学性能和微观形态变化.结果表明,使用缩聚型反应挤出机对r-PET/ABS的混合效果优于使用双螺杆挤出机的,反应挤出机最佳螺筒温度为:245,260,255,255,240℃,最佳螺杆转速为80 r/min; ABS质量分数为30%以下时,ABS以球状均匀地分散在r-PET连续相中;r-PET/ABS质量比为80/20的力学性能最佳,与r-PET相比·拉伸强度提高10 MPa,无缺口冲击强度提高6倍多,缺口冲击强度提高近1倍.

  7. Evaluation of post-vaccination immunity following the 1989 rinderpest vaccination campaign in Cote d'Ivoire

    International Nuclear Information System (INIS)

    The Central Veterinary Laboratory, Bingerville, in 1990 carried out a serological survey to estimate the level of vaccination achieved during the 1989/90 national rinderpest vaccination campaign. Using a random sampling frame 6,020 sera were collected from 255 sampling sites and the sera examined for antibodies to rinderpest virus using the FAO/IAEA ELISA based procedure. The results showed that 82% of the animals sampled were immune to rinderpest. (author). 12 refs, 3 figs, 7 tabs

  8. Mõtteid steinerpedagoogikast / Marja Dahlström

    Index Scriptorium Estoniae

    Dahlström, Marja

    2003-01-01

    17. apr., nr. 16, lk. 255 ; 22. mai, nr. 21, lk. 332, pealk.: Et lapsepõlv ei satuks ohtu ; 29. mai, nr. 22, lk. 351, pealk.: Anna lapsele aega ; 14. aug., nr. 33, lk. 534, pealk.: Lapse suhe igapäevaeluga ; 4. sept., nr. 36, lk. 583, pealk.: Mängu olemusest ; 2. okt., nr. 40, lk. 647, pealk.: Mängimata kasvab kurjaks ; 20. nov., nr. 47, lk. 760, pealk.: Mäng on hädavajalik

  9. AcEST: BP915529 [AcEST

    Lifescience Database Archive (English)

    Full Text Available ltransferase At3g023... 255 1e-67 sp|Q9LSG3|QUA1_ARATH Glycosyltransferase QUASIMODO1 OS=Arabidops... 248 2e...93 Query: 542 YSLDKSWHVL 571 SLDKSWHVL Sbjct: 494 KSLDKSWHVL 503 >sp|Q9LSG3|QUA1_ARATH Glycosyltransferase QUASIMO..._ORYSJ Glycosyltransferase QUASIMODO1, putative,... 281 1e-74 tr|Q0IY63|Q0IY63_ORYSJ Os10g0363100 protein OS

  10. Inequality aversion, social discount, and time discount rates

    OpenAIRE

    Takanori Ida; Kazuhito Ogawa

    2010-01-01

    Purpose - We conduct a hypothetical dictator game with social distance and time delays using conjoint analysis. Design / methodology / approach - Responses from 1,347 Japanese adults are collected through an online survey, and their responses are analyzed using a random parameter logit model. Findings - Social preference for the present income of a stranger equals social preference for the income of an acquaintance 140 days later, of a close friend 224 days later, and of a family member 255 d...

  11. The prevalence of Spouse Abuse Among Maried Students of Islamic Azad University of Tonekabon in 1383

    OpenAIRE

    Sh. Ghahari; M.K. Atefvahid; H. Yousefi

    2006-01-01

    The purpose of this study was to assess the frequency of spouse abuse among students in the Islamic Azad University of Tonekabon. All married students in different departments completed the spouse Abuse Questionnaire (n=327). The results showed that 306 students (255 female and 51 male) reported having experienced of some types of abuses. 299 (91%) of the cases reported emotional abuse, 180 (55%) physical abuse and 138 (42%) of the students reported sexual abuse. The results showed that 16.6%...

  12. Quality of life impairment associated with body dissatisfaction in a general population sample of women

    OpenAIRE

    Mond, Jonathan; Mitchison, Deborah; Latner, Janet; Hay, Phillipa; Owen, Cathy; Rodgers, Bryan

    2013-01-01

    Background In order to elucidate the individual and community health burden of body dissatisfaction (BD), we examined impairment in quality of life associated with BD in a large, general population sample of women. Methods Self-report measures of BD, health-related quality of life (SF-12 Physical and Mental Component Summary scales) and subjective quality of life (WHOQOL-BREF Psychological Functioning and Social Relationships subscales) were completed by 5,255 Australian women aged 18 to 42 y...

  13. Chemical Compositions, Antioxidant and Antimicrobial Activities of Essential Oils of Piper caninum Blume

    OpenAIRE

    Hasnah Mohd Sirat; Khong Heng Yen; Farediah Ahmad; Wan Mohd Nuzul Hakimi Wan Salleh

    2011-01-01

    Chemical composition, antioxidant and antimicrobial activities of the fresh leaves and stems oils of Piper caninum were investigated. A total of forty eight constituents were identified in the leaves (77.9%) and stems (87.0%) oil which were characterized by high proportions of phenylpropanoid, safrole with 17.1% for leaves and 25.5% for stems oil. Antioxidant activities were evaluated by using β-carotene/linoleic acid bleaching, DPPH radical scavenging and total phenolic content. Stems oil sh...

  14. 3) HBs抗原精密検査による輸血後B型肝炎防止の試み(シンポジウム 輸血をめぐる諸問題 : とくに輸血後肝炎防止について, 第456回新潟医学会)

    OpenAIRE

    小島, 秀男; 大竹, 幸子; 富樫, 和枝; 石口, 重子; 山田, 恵子; 品田, 章二; Kojima, Hideo; Ohtake, Sachiko; TOGASHI, Kazue; Ishiguchi, Shigeko; YAMADA, Keiko; Shinada, Shoji

    1990-01-01

    Post transfusion Hepatitis (PTH) is one of serious side effects and some times lead to fulminant hepatic failure in case transfused blood contain very low level (under the sensitivity of usual screening method) of hepatitis B virus (HBV). Redcross blood center and blood transfusion devision of our hospital have been employed reverse passive hemmaglutination method (RPHA) for HBsAg screening. Authors employed EIA for sensitive HBsAg test system and compared with RPHA method. Of 2,255 sera from...

  15. Body size and shape evolution in host races of the tick Ixodes uriae

    OpenAIRE

    Dietrich, M.; Beati, L.; Elguero, Eric; Boulinier, T.; McCoy, K.D.

    2013-01-01

    The tick Ixodes uriae is a common ectoparasite of seabirds, and is widely distributed across the circumpolar regions of both hemispheres. Previous work demonstrated the existence of genetically distinct host races of this ectoparasite, occurring across its current range. The objective of the present study was to examine whether these host races have evolved measurable morphological differences. We measured a set of morphological variables on 255 non-engorged ticks (nymphs and adults) collecte...

  16. How Dare You Scientists Espouse Different Thoughts!

    OpenAIRE

    Cairns, John

    2010-01-01

    On May 7, 2010, a letter signed by 255 members of the US National Academy of Sciences deplored attacks on both science and scientists who researched climate science or related fields. The assaults in the letter rely on two main components. First, statements contradict the preponderance of scientific evidence without a comparable body of evidence to the contrary. Second, as the size of the Intergovernmental Panel on Climate Change (IPCC) reports grows, so does the probability of minor errors. ...

  17. Evaluation Of Corrosion Resistance Of A Duplex Stainless Steel "Ferralium" In Dead Sea Brine

    OpenAIRE

    Mohamed, Z

    1992-01-01

    Corrosion behavior of Ferralium Alloy 255 during service in the environment of concentrated Dead Sea brine has been investigated. It was found that, the corrosion attack is intergranular and exists only in the weld heat effected zone (HAZ). It starts at ferrite/austenite grain boundaries and in the ferrite matrix, where chromium nitride precipitates and then propagates with acceleration in the rest of the metal due to the abrasive action of the slurry.

  18. Effect of “475°C Embrittlement” on the Corrosion Behaviour of Grade 2205 Duplex Stainless Steel Investigated Using Local Probing Techiques

    OpenAIRE

    C. Örnek, D.L. Engelberg, S.B. Lyon, T.L. Ladwein

    2013-01-01

    The work reported in this paper correlates microstructure development after low temperature embrittlement heat treatments with pitting corrosion susceptibility in grade 2205 duplex stainless steel. Heat-treatments at 475°C for up to 255 hours were carried out and microstructures characterised using scanning electron microscopy (SEM) and micro-hardness testing. Local electrochemical measurements using an electrochemical micro-cell were carried out and the critical pitting temperature (CPT) det...

  19. Output characteristic of Yb3+-doped fiber laser at different temperatures

    Institute of Scientific and Technical Information of China (English)

    Jixin Chen; Zhan Sui; Fushen Chen; Jianjun Wang

    2006-01-01

    @@ The output characteristics of Yb3+-doped fiber laser at different temperatures are investigated. When temperature is increased from 13 to 95 ℃, the center wavelength of laser changes from 1084.9 to 1096.3nm, the output laser power decreases from 0.95 to 0.58 W, and the slope efficiency drops from 30.7% to 25.5%.

  20. Dicty_cDB: Contig-U01295-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 215673-... 38 0.14 7 ( FG288127 ) 1108793259903 New World Screwworm Egg 9261 ESTs C... 40 0.14 2 ( DQ855586...p. nucleatum ATCC 255... 50 0.15 1 ( FG286381 ) 1108770714831 New World Screwworm Egg 9261 ESTs C... 40 0.15...( FM992688 ) Candida dubliniensis CD36 chromosome 1, complete ... 44 0.55 6 ( FG296422 ) 1108793252569 New World