WorldWideScience

Sample records for californium 243

  1. 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)

  2. 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

  3. 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

  4. 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

  5. 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)

  6. 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.

  7. 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.

  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. 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

  13. Gclust Server: 243 [Gclust Server

    Lifescience Database Archive (English)

    Full Text Available 243 CEL_K07E3.3_17568735 Cluster Sequences Related Sequences(40) 303 dao-3: Dauer or Aging... sequences Related Sequences(40) Sequence length 303 Representative annotation dao-3: Dauer or Aging

  14. 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

  15. 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

  16. 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

  17. 40 CFR 243.204 - Collection management.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Collection management. 243.204 Section 243.204 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES GUIDELINES... and Recommended Procedures § 243.204 Collection management....

  18. 33 CFR 117.243 - Nanticoke River.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Nanticoke River. 117.243 Section 117.243 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY BRIDGES DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Delaware § 117.243 Nanticoke River. (a) The draw...

  19. 40 CFR 243.201 - Safety.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Safety. 243.201 Section 243.201 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES GUIDELINES FOR THE STORAGE... Procedures § 243.201 Safety....

  20. 48 CFR 243.204 - Administration.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 3 2010-10-01 2010-10-01 false Administration. 243.204... OF DEFENSE CONTRACT MANAGEMENT CONTRACT MODIFICATIONS Change Orders 243.204 Administration. Follow the procedures at PGI 243.204 for administration of change orders....

  1. 7 CFR 58.243 - Checking quality.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Checking quality. 58.243 Section 58.243 Agriculture... Procedures § 58.243 Checking quality. All milk, milk products and dry milk products shall be subject to inspection and analysis by the dairy plant for quality and condition throughout each processing...

  2. 46 CFR 169.243 - Electrical.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Electrical. 169.243 Section 169.243 Shipping COAST GUARD... Certification Inspections § 169.243 Electrical. At each inspection for certification and periodic inspection... that they are in proper operating condition, in safe electrical condition, and fit for the service...

  3. 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

  4. 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

  5. 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.)

  6. 37 CFR 2.43 - Service mark.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Service mark. 2.43 Section 2... COMMERCE RULES OF PRACTICE IN TRADEMARK CASES The Written Application § 2.43 Service mark. In an application to register a service mark, the application shall specify and contain all the elements required...

  7. 40 CFR 86.243-94 - [Reserved

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 18 2010-07-01 2010-07-01 false 86.243-94 Section 86.243-94 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CONTROL OF... Year Gasoline-Fueled New Light-Duty Vehicles, New Light-Duty Trucks and New Medium-Duty...

  8. 7 CFR 1220.243 - Confidential treatment.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Confidential treatment. 1220.243 Section 1220.243 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  9. 27 CFR 24.243 - Filtering aids.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Filtering aids. 24.243... OF THE TREASURY LIQUORS WINE Storage, Treatment and Finishing of Wine § 24.243 Filtering aids. Inert fibers, pulps, earths, or similar materials, may be used as filtering aids in the cellar treatment...

  10. 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

  11. 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.

  12. 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

  13. Dicty_cDB: SLA243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available SL (Link to library) SLA243 (Link to dictyBase) - G22368 DDB0187482 Contig-U03776-1 SLA...243Z (Link to Original site) - - SLA243Z 336 - - - - Show SLA243 Library SL (Link to library) Clone ID SLA...riginal site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/SL/SLA2-B/SLA243Q.Seq.d/ ...Representative seq. ID SLA243Z (Link to Original site) Representative DNA sequence >SLA243 (SLA243Q) /CSM/SL/SLA2-B/SLA...AGTTATTGGTGATACTTATATTGAAATTAA TTAAAAATTAATAATAAAAAAAAAAAAAAAAATTTTGTACAAATAA sequence update 1997. 5. 7 Transla

  14. 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

  15. Dicty_cDB: SSI243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 243E (Link to Original site) - - - - - - SSI243E 423 Show SSI243 Library SS (Link to library) Clone ID SSI...Representative seq. ID SSI243E (Link to Original site) Representative DNA sequence >SSI243 (SSI243Q) /CSM/SS/SSI2-B/SSI...SS (Link to library) SSI243 (Link to dictyBase) - G23726 DDB0217593 Contig-U04827-1 SSI...243 (Link to dictyBase) Atlas ID - NBRP ID G23726 dictyBase ID DDB0217593 Link to Contig Contig-U04827-1 Original si...te URL http://dictycdb.biol.tsukuba.ac.jp/CSM/SS/SSI2-B/SSI243Q.Seq.d/

  16. Käibemaksu maksmine maksab 243 miljonit

    Index Scriptorium Estoniae

    2005-01-01

    Poliitikauuringute keskuse PRAXIS uurimus näitas, et Eesti ettevõtetel kulub käibemaksu administreerimisele ja seadustega kursis hoidmisele aastas kokku 243 miljonit krooni, mis võrdub 0,25% SKP-st. Tabel: Suurim kulu ettevõtetele on enda kursishoidmine käibemaksuküsimustes. Vt. samas: Kuidas PRAXIS halduskoormust hindas

  17. Gas Well Blowout Kills 243 People

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    @@ At least 243 people have been killed and scores of others poisoned in a devastating blowout at a natural gas field in Southwest China's Chongqing municipality on December 24. The accident happened at the Chuandongbei gas field in Kaixian county of Chongqing municipality.

  18. 28 CFR 2.43 - Early termination.

    Science.gov (United States)

    2010-07-01

    ..., YOUTH OFFENDERS, AND JUVENILE DELINQUENTS United States Code Prisoners and Parolees § 2.43 Early... score in the very good risk category and has completed two continuous years of supervision free from an incident of new criminal behavior or serious parole violation; or (ii) Has a salient factor score in a...

  19. 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...

  20. 20 CFR 243.4 - Taxation of benefits.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 1 2010-04-01 2010-04-01 false Taxation of benefits. 243.4 Section 243.4 Employees' Benefits RAILROAD RETIREMENT BOARD REGULATIONS UNDER THE RAILROAD RETIREMENT ACT TRANSFER, ASSIGNMENT, OR WAIVER OF PAYMENTS § 243.4 Taxation of benefits. (a) Annuities paid by the Board are...

  1. 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.

  2. Dicty_cDB: VHP243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available VH (Link to library) VHP243 (Link to dictyBase) - - - Contig-U16236-1 - (Link to Or...iginal site) VHP243F 134 - - - - - - Show VHP243 Library VH (Link to library) Clone ID VHP243 (Link to dicty...Base) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U16236-1 Original site URL http://dictycdb.b...AXXXXXXXXXX sequence update 2002.10.25 Translated Amino Acid sequence CWPTGIXKTTICT...kilsif*ynfkyyqqpkkk--- Frame B: llaywyxqnnnlyqyyyyfyl*kyflsfniilniinnpkk--- Frame C: CWPTGIXKTTICTNTTIISICKN

  3. 14 CFR 243.15 - Conflict with foreign laws.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Conflict with foreign laws. 243.15 Section... PROCEEDINGS) ECONOMIC REGULATIONS PASSENGER MANIFEST INFORMATION § 243.15 Conflict with foreign laws. (a) If a... portion of this part is not required because of a conflict with applicable foreign law....

  4. 14 CFR 125.243 - Certificate holder's responsibilities.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Certificate holder's responsibilities. 125.243 Section 125.243 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF... CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT Maintenance §...

  5. 12 CFR 24.3 - Public welfare investments.

    Science.gov (United States)

    2010-01-01

    ... investment would receive consideration under 12 CFR 25.23 as a “qualified investment.” ... 12 Banks and Banking 1 2010-01-01 2010-01-01 false Public welfare investments. 24.3 Section 24.3 Banks and Banking COMPTROLLER OF THE CURRENCY, DEPARTMENT OF THE TREASURY COMMUNITY AND...

  6. 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)

  7. 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

  8. 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)

  9. 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)

  10. 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

  11. 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.

  12. 48 CFR 1852.243-71 - Shared savings.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Shared savings. 1852.243-71... Shared savings. As prescribed in 1843.7102, insert the following clause: Shared Savings (MAR 1997) (a... services to be provided under the contract. (b) Definitions: (1) Cost savings, as contemplated by...

  13. 48 CFR 53.243 - Contract modifications (SF 30).

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Contract modifications (SF... (CONTINUED) CLAUSES AND FORMS FORMS Prescription of Forms 53.243 Contract modifications (SF 30). SF 30 (Rev. 10/83), Amendment of Solicitation/Modification of Contract. SF 30 is prescribed for use in...

  14. 49 CFR 372.243 - Controlling distances and population data.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 5 2010-10-01 2010-10-01 false Controlling distances and population data. 372.243... population data. In the application of § 372.241: (a) Air-line distances or mileages about corporate limits of municipalities shall be used. (b) The population of any municipality shall be deemed to be...

  15. 48 CFR 52.243-6 - Change Order Accounting.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false Change Order Accounting....243-6 Change Order Accounting. As prescribed in 43.205(f), the contracting officer may insert a clause, substantially the same as follows: Change Order Accounting (APR 1984) The Contracting Officer may require...

  16. 40 CFR 180.243 - Propazine; tolerances for residues.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Propazine; tolerances for residues...) PESTICIDE PROGRAMS TOLERANCES AND EXEMPTIONS FOR PESTICIDE CHEMICAL RESIDUES IN FOOD Specific Tolerances § 180.243 Propazine; tolerances for residues. Tolerances are established for negligible residues (N)...

  17. 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

  18. 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

  19. 30 CFR 243.2 - What leases are subject to this part?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What leases are subject to this part? 243.2 Section 243.2 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.2...

  20. 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%.

  1. 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%.

  2. 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.

  3. 14 CFR 243.11 - Transmission of information after an aviation disaster.

    Science.gov (United States)

    2010-01-01

    ... aviation disaster. 243.11 Section 243.11 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF... of information after an aviation disaster. (a) Each covered airline shall inform the Managing... upon learning of an aviation disaster involving a covered flight segment operated by that carrier....

  4. 30 CFR 243.1 - What is the purpose of this part?

    Science.gov (United States)

    2010-07-01

    ... 243.1 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.1 What... are a lessee) have appealed under 30 CFR part 290 in effect prior to May 13, 1999 and contained in...

  5. 30 CFR 243.3 - What definitions apply to this part?

    Science.gov (United States)

    2010-07-01

    ... Section 243.3 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.3 What... assigned. MMS bond-approving officer means the Associate Director for Minerals Revenue Management or...

  6. 30 CFR 243.200 - How do I demonstrate financial solvency?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false How do I demonstrate financial solvency? 243.200 Section 243.200 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT Financial...

  7. 30 CFR 243.202 - When will MMS monitor my financial solvency?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false When will MMS monitor my financial solvency? 243.202 Section 243.202 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT...

  8. 30 CFR 243.4 - How do I suspend compliance with an order?

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false How do I suspend compliance with an order? 243.4 Section 243.4 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General...

  9. 30 CFR 243.201 - How will MMS determine if I am financially solvent?

    Science.gov (United States)

    2010-07-01

    ... solvent? 243.201 Section 243.201 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT Financial... making payments found in 30 CFR 218.51. You are not required to use Electronic Funds Transfer (EFT)...

  10. 30 CFR 243.8 - When will MMS suspend my obligation to comply with an order?

    Science.gov (United States)

    2010-07-01

    ... with an order? 243.8 Section 243.8 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT... with the Bureau of Land Management for onshore leases, and MMS for OCS leases, as collateral for...

  11. Clinical analysis of 243 eases of nevus of Ota%243例太田痣临床分析

    Institute of Scientific and Technical Information of China (English)

    李林; 张丽; 谭志建

    2009-01-01

    regnancy. Conclusions Nevus of Ota may be a hereditary disease, and patients with pigmentary disorders are more likely to have descendants with nevus of Ota.%目的 对湖北及周边地区太田痣患者进行临床分析.方法 回顾分析243例太田痣患者在发病时间、色素性疾病家族史及患者母亲妊娠期间是否有用药史等方面进行统计学比较.结果 太田痣出生时发病者占58.0%,出生后发病者占42.0%,主要集中于5~15岁.有色素性疾病家族史者占60.1%,其中以雀斑和咖啡斑为主.患有太田痣与女性妊娠期间是否有用药史无明显关系.结论 太田痣可能具有遗传性,具有色素性疾病史的患者,其后代患太田痣的可能性较大.

  12. 30 CFR 243.101 - How will MMS determine the amount of my bond or other surety instrument?

    Science.gov (United States)

    2010-07-01

    ... other surety instrument? 243.101 Section 243.101 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT Bonding Requirements § 243.101 How will MMS determine the amount of my bond or...

  13. 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.

  14. 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

  15. Molecular Cloning and Production of Recombinant Phytase from Bacillus subtilis ASUIA243 in Pichia pastoris

    Directory of Open Access Journals (Sweden)

    Nor Soleha Mohd Dali

    2011-12-01

    Full Text Available Phytase gene obtained from Bacillus subtilis ASUIA243 was cloned into a medium vector and transformed into E. coli. Restriction enzyme digestion was conducted to get blunt-ended phytase gene and ligated into the Pichia expression vector, pPICZαA. The recombinant vector, pPICZαA-243HPp was then linearized with PmeI and transformed into P. pastoris strain X33. Screening for multi copy gene number of transformants was done by re-plating the selected colonies on increasing concentration of zeocin. One positive clone, X243HPp#2 was then grown in BMGY media as the starting culture, followed by induction in BMMY media for protein expression study. The supernatant was then analysed by SDS-PAGE and Western blot method to check the protein expression.ABSTRAK: Gen fitase yang didapati daripada Bacillus subtilis ASUIA243 diklonkan sebagai vektor perantara dan berubah menjadi E. coli. Sekatan pencernaan enzim dijalankan untuk mendapatkan gen fitase berhujung tumpul dan diligatkan dengan vektor ekspresi Pichia, pPICZαA. Vektor rekombinan, pPICZαA-243HPp kemudian dilinearkan dengan PmeI dan berubah menjadi P. pastoris strain X33. Penyaringan untuk nombor gen berbilang salinan yang menjalani transformasi genetik dijalankan dengan menyalur semula koloni terpilih dengan penambahan kepekatan zeocin. Satu klon positif, X243HPp#2 kemudian dibiarkan hidup dalam perantara BMGY sebagai kultur permulaan, diikuti dengan aruhan dalam perantara BMMY untuk kajian penglahiran protein. Supernatan kemudian dikaji dengan SDS-PAGE dan kaedah sap Western untuk menyemak penglahiran protein.KEYWORDS:  phytase, Bacillus subtilis, Pichia pastoris, gene cloning.

  16. 30 CFR 243.12 - May I substitute a demonstration of financial solvency for a bond posted before the effective...

    Science.gov (United States)

    2010-07-01

    ... MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.12 May I substitute...

  17. Molecular Cloning and Production of Recombinant Phytase from Bacillus subtilis ASUIA243 in Pichia pastoris

    OpenAIRE

    Nor Soleha Mohd Dali; Tamrin Nuge; Mohd Hafidz Mahamad Maifiah; Faridah Yusof; Anis Shobirin Meor Hussin; Abd-Elaziem Farouk; and Hamzah Mohd. Salleh

    2011-01-01

    Phytase gene obtained from Bacillus subtilis ASUIA243 was cloned into a medium vector and transformed into E. coli. Restriction enzyme digestion was conducted to get blunt-ended phytase gene and ligated into the Pichia expression vector, pPICZαA. The recombinant vector, pPICZαA-243HPp was then linearized with PmeI and transformed into P. pastoris strain X33. Screening for multi copy gene number of transformants was done by re-plating the selected colonies on increasing concentrati...

  18. Preparation and high intensity heavy ion irradiation tests of intermetallic 243Am/Pd targets

    International Nuclear Information System (INIS)

    Previously reported preparation method for Pd-based intermetallic targets (Usoltsev, et al., 2012) [1] has been successfully applied for producing two stationary 243Am/Pd targets. Both targets have been irradiated at the U-400 cyclotron at Flerov Laboratory of Nuclear Reactions Dubna (Russian Federation) using high intensity beams (up to 0.83 μApart) of 48Ca18+. Alpha-particle spectroscopy and light microscopy allowed for a comprehensive characterization of the intermetallic targets before and after irradiation. A natNd/Pd intermetallic target and a solely electroplated 243Am/Ti target were similarly investigated for comparison

  19. Spectroscopic monitoring of the luminous blue variable Westerlund1-243 from 2002 to 2009

    OpenAIRE

    Ritchie, B.; Clark, J. S.; Negueruela,, I.; Najarro, F

    2009-01-01

    Context. The massive post-main sequence star W243 in the galactic starburst cluster Westerlund 1 has undergone a spectral transformation from a B2Ia supergiant devoid of emission features in 1981 to an A-type supergiant with a rich emission-line spectrum by 2002/03.Aims. We examine the continued evolution of W243 from 2002 to 2009 to understand its evolutionary state, current physical properties and the origin of its peculiar emission line spectrum.Methods. We used VLT/UVES and VLT/FLAMES to ...

  20. 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.)

  1. 17 CFR 243.103 - No effect on Exchange Act reporting status.

    Science.gov (United States)

    2010-04-01

    ... filings in a timely manner; or (b) There is adequate current public information about the issuer for... a public disclosure required solely by § 243.100 shall not affect whether: (a) For purposes of Forms S-2 (17 CFR 239.12), S-3 (17 CFR 239.13) and S-8 (17 CFR 239.16b) under the Securities Act,...

  2. Pesticides: Benefaction or Pandora's Box? A synopsis of the environmental aspects of 243 pesticides

    NARCIS (Netherlands)

    Linders JBHJ; Jansma JW; Mensink BJWG; Otermann K; ACT

    1994-01-01

    The report provides an overview of physical, chemical and environmental data of 243 pesticides. The data mentioned are based on confidential information supplied by the manufacturers of the pesticides. For all pesticides mentioned a Final Environmental File, which is public, is derived. Tables with

  3. 49 CFR 234.243 - Wire on pole line and aerial cable.

    Science.gov (United States)

    2010-10-01

    ... Maintenance, Inspection, and Testing Maintenance Standards § 234.243 Wire on pole line and aerial cable. Wire... transmission line operating at voltage of 750 volts or more shall be placed not less than 4 feet above the... 49 Transportation 4 2010-10-01 2010-10-01 false Wire on pole line and aerial cable....

  4. 49 CFR 173.243 - Bulk packaging for certain high hazard liquids and dual hazard materials which pose a moderate...

    Science.gov (United States)

    2010-10-01

    ... conforming to 46 CFR part 64 with design pressure of at least 172.4 kPa (25 psig) are authorized. Unless... dual hazard materials which pose a moderate hazard. 173.243 Section 173.243 Transportation Other... hazard liquids and dual hazard materials which pose a moderate hazard. When § 172.101 of this...

  5. 20 CFR 404.243 - Computation where you are eligible for a pension based on noncovered employment.

    Science.gov (United States)

    2010-04-01

    ... pension based on noncovered employment. 404.243 Section 404.243 Employees' Benefits SOCIAL SECURITY... for a pension based on noncovered employment. The provisions of § 404.213 are applicable to... of living amount), minus one-half the portion of your monthly pension which is due to noncovered...

  6. Bulk density of asteroid 243 Ida from the orbit of its satellite Dactyl

    Science.gov (United States)

    Belton, M.J.S.; Chapmant, C.R.; Thomas, P.C.; Davies, M.E.; Greenberg, R.; Klaasen, K.; Byrnes, D.; D'Amario, L.; Synnott, S.; Johnson, T.V.; McEwen, A.; Merline, W.J.; Davis, D.R.; Petit, J.-M.; Storrs, A.; Veverka, J.; Zellner, B.

    1995-01-01

    DURING its reconnaissance of the asteroid 243 Ida, the Galileo spacecraft returned images of a second object, 1993(243)1 Dactyl1 - the first confirmed satellite of an asteroid. Sufficient data were obtained on the motion of Dactyl to determine its orbit as a function of Ida's mass. Here we apply statistical and dynamical arguments to constrain the range of possible orbits, and hence the mass of Ida. Combined with the volume of Ida2, this yields a bulk density of 2.6??0.5 g cm-3. Allowing for the uncertainty in the porosity of Ida, this density range is consistent with a bulk chondritic composition, and argues against some (but not all) classes of meteoritic igneous rock types that have been suggested as compositionally representative of S-type asteroids like Ida.

  7. An Unusual Stress Metabolite from a Hydrothermal Vent Fungus Aspergillus sp. WU 243 Induced by Cobalt.

    Science.gov (United States)

    Ding, Chihong; Wu, Xiaodan; Auckloo, Bibi Nazia; Chen, Chen-Tung Arthur; Ye, Ying; Wang, Kuiwu; Wu, Bin

    2016-01-01

    A novel hybrid polyketide-terpenoid, aspergstressin (1), possessing a unique fused polycyclic structure, was induced from culture broth of strain Aspergillus sp. WU 243 by cobalt ion stimulation. The strain was isolated from the digestive gland of Xenograpsus testudinatus, a unique type of crab which dwells in the Kueishantao hydrothermal vents off Taiwan. The chemical structure and relative configuration of the stress metabolite were established by spectroscopic means. Aspergillus sp. WU 243 produced aspergstressin (1) only under cobalt stressed culture conditions. The results show that stress-driven discovery of new natural products from hydrothermal vent fungi is an effective strategy to unveil the untapped reservoir of small molecules from species found in the hydrothermal vent environment. PMID:26805789

  8. Effect of arginine on stability of GST-ZNF191(243-368)

    Institute of Scientific and Technical Information of China (English)

    Dong Xin Zhao; Zhong Xian Huang

    2007-01-01

    For better understanding the chemical or biological information of ZNF191 (243-368), we expressed the fusion protein of GST and ZNF191(243-368), and used it to obtain the binding DNA sequence of this zinc finger protein. But in the process of expression and purification, we found this fusion protein slowly degradated. For resolving this problem, we simultaneously added charged amino acids L-Arg and L-Glu to the solution of fusion protein, and demonstrated that this method can dramatically increase the stability of this fusion protein. This method can make the fusion protein suitable for the continuous works, especially for situations where high protein concentration and long-term stability without precipitate and degradation of protein are required.

  9. Yb fiber amplifier at 972.5 nm with frequency quadrupling to 243.1 nm

    CERN Document Server

    Burkley, Z; Cooper, S F; Brandt, A D; Yost, D C

    2016-01-01

    We demonstrate a continuous-wave ytterbium-doped fiber amplifier which produces 6.3 W at a wavelength of 972.5 nm. We frequency quadruple this source in two resonant doubling stages to produce 530 mW at 243.1 nm. Radiation at this wavelength is required to excite the 1S-2S transition in atomic hydrogen and could therefore find application in experimental studies of hydrogen and anti-hydrogen.

  10. 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.

  11. Spectroscopic monitoring of the luminous blue variable Westerlund1-243 from 2002 to 2009

    CERN Document Server

    Ritchie, B W; Negueruela, I; Najarro, F

    2009-01-01

    The massive post-Main Sequence star W243 in the galactic starburst cluster Westerlund 1 has undergone a spectral transformation from a B2Ia supergiant devoid of emission features in 1981 to an A-type supergiant with a rich emission-line spectrum by 2002/03. We used VLT/UVES and VLT/FLAMES to obtain high-resolution spectra on six epochs in 2003/04 (UVES) and ten epochs in 2008/09 (FLAMES). These spectra are used alongside other VLT/FLAMES and NTT/EMMI spectra to follow the evolution of W243 from 2002 to 2009. W243 displays a complex, time-varying spectrum with emission lines of Hydrogen, Helium and Lyman-pumped metals, forbidden lines of Nitrogen and Iron, and a large number of absorption lines from neutral and singly-ionized metals. Many lines are complex emission/absorption blends. The LBV has a current temperature of ~8500K (spectral type A3Ia+), and displays signs of photospheric pulsations and weak episodic mass loss. Nitrogen is highly overabundant, with Carbon and Oxygen depleted, indicative of surface ...

  12. Measurements of neutron cross section of the {sup 243}Am(n,{gamma}){sup 244}Am reaction

    Energy Technology Data Exchange (ETDEWEB)

    Hatsukawa, Yuichi; Shinohara, Nobuo; Hata, Kentaro [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-03-01

    The effective thermal neutron cross section of {sup 243}Am(n,{gamma}){sup 244}Am reaction was measured by the activation method. Highly-purified {sup 243}Am target was irradiated in an aluminum capsule by using a research reactor JRR-3M. The tentative effective thermal neutron cross sections are 3.92 b, and 84.44 b for the production of {sup 244g}Am and {sup 244m}Am, respectively. (author)

  13. ESO 243-49 HLX-1: scaling of X-ray spectral properties and black hole mass determination

    CERN Document Server

    Titarchuk, Lev

    2016-01-01

    We report the results of Swift/XRT observations (2008-2015) of a hyper-luminous X-ray source, ESO 243-49 HLX-1. We found a strong observational evidence that ESO 243-49 HLX-1 underwent spectral transitions from the low/hard state to the high/soft state during these observations. The spectra of ESO 243-49 HLX-1 are well fitted by the so-{called} bulk motion Comptonization model for all spectral states. We have established the photon index Gamma saturation level, Gamma_{sat}$=3.0+/-0.1, in the correlation of Gamma versus mass accretion rate dot M. This Gamma-dot M correlation allows us to estimate the black hole (BH) mass in ESO 243-49 HLX-1 to be M_{BH}~ 7x 10^4 solar masses, assuming the distance to ESO 243-49 of 95 Mpc. For the BH mass estimate we used the scaling method, taking Galactic BHs XTE~J1550-564, H~1743-322 and 4U~1630-472, and an extragalactic BH source, M101 ULX-1 as reference sources. The Gamma-dot M correlation revealed in ESO 243-49 HLX-1 is similar to those in a number of Galactic and extraga...

  14. 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)

  15. 腹腔镜胆囊切除术243例护理分析%Nursing Analysis of 243 Laparoscopic Cholecystectomy Cases

    Institute of Scientific and Technical Information of China (English)

    王岩

    2015-01-01

    目的:探讨围手术期护理干预对腹腔镜胆囊切除术患者的临床意义。方法选择本院收治的需进行腹腔镜胆囊切除术的患者243例,随机分为对照组与观察组,对照组采用常规护理模式,观察组采用整体护理干预进行护理,对比观察两组患者的护理满意度,及手术时间、术中出血量和住院时间情况。结果观察组护理满意度显著高于对照组,差异有统计学意义(P<0.05);与对照组相比,观察组的手术时间、术中出血量、患者住院时间均具有明显优势,差异具有显著性(P<0.05)。结论完整的围术期护理干预模式可以降低腹腔镜胆囊切除术手术时间,提高患者康复速度,且减少并发症,患者满意度普遍较高。%Objective To study the clinical significance of nursing operation in peri-operation in patients with laparoscopic cholecystectomy.Methods Choose 243 patients who were treated with laparoscopic cholecystectomy in our hospital, randomly divided into control group and observation group, control group adopted the conventional care, observation group were treated with the whole nursing operation in peri-operation, observed patients satisfaction with nursing, the operation time, peri-operative bleeding and length of hospital stay.Results Compared with control group, the observation group had significantly advantage in clinical nursing satisfaction, the operation time, peri-operative bleeding and length of hospital stay. The difference was statistically significant(P<0.05).Conclusion Complete perioperative nursing intervention mode can reduce the operation time of laparoscopic cholecystectomy, improve patient recovery rate, reduce the complications, and improve patient satisfaction.

  16. A monolithic collapse origin for the thin/thick disc structure of ESO~243-49

    CERN Document Server

    Comerón, S; Peletier, R F; Mentz, J

    2016-01-01

    ESO 243-49 is a high-mass (circular velocity $v_{\\rm c}\\approx200\\,{\\rm km\\,s^{-1}}$) edge-on S0 galaxy in the Abell 2877 cluster at a distance of $\\sim95\\,{\\rm Mpc}$. To elucidate the origin of its thick disc, we use MUSE science verification data to study its kinematics and stellar populations. The thick disc emits $\\sim80\\%$ of the light at heights in excess of $3.5^{\\prime\\prime}$ ($1.6\\,{\\rm kpc}$). The rotation velocities of its stars lag by $30-40\\,{\\rm km\\,s^{-1}}$ compared to those in the thin disc, which is compatible with the asymmetric drift. The thick disc is found to be more metal-poor than the thin disc, but both discs have old ages. We suggest an internal origin for the thick disc stars in high-mass galaxies. We propose that the thick disc formed either ${\\rm a)}$ first in a turbulent phase with a high star formation rate and that a thin disc formed shortly afterwards, or ${\\rm b)}$ because of the dynamical heating of a thin pre-existing component. Either way, the star formation in ESO 243-49 ...

  17. 30 CFR 243.7 - What must a person do when posting a bond or other surety instrument or demonstrating financial...

    Science.gov (United States)

    2010-07-01

    ....7 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.7...

  18. Lipoprotein Lipase Deficiency (R243H) in a Type 2 Diabetes Patient with Multiple Arterial Aneurysms.

    Science.gov (United States)

    Suzuki, Toru; Sawada, Shojiro; Ishigaki, Yasushi; Tsukita, Sohei; Kodama, Shinjiro; Sugisawa, Takashi; Imai, Junta; Yamada, Tetsuya; Yamaguchi, Takashi; Murano, Takeyoshi; Katagiri, Hideki

    2016-01-01

    Lipoprotein lipase (LPL) deficiency is a rare monogenic disorder that manifests as severe hypertriglyceridemia. Whether or not LPL deficiency accelerates the development of atherosclerosis remains controversial. We herein report a 66-year-old woman who was homozygous for the R243H LPL mutation. She had developed multiple arterial aneurysms and systemic atherosclerosis despite good control of other atherogenic risk factors, including diabetes. Furthermore, although intensive pharmaceutical therapies had been minimally effective, medium chain triglyceride (MCT) therapy reduced the serum triglyceride levels. Thus, this case suggests important role that mutated LPL protein plays in the progression of atherosclerosis and that MCT therapy is potentially effective, even for severe hypertriglyceridemia due to LPL deficiency. PMID:27150867

  19. Measurement of fission cross section with pure Am-243 sample using lead slowing-down spectrometer

    Energy Technology Data Exchange (ETDEWEB)

    Kobayashi, Katsuhei; Yamamoto, Shuji; Kai, T.; Fujita, Yoshiaki; Yamamoto, Hideki; Kimura, Itsuro [Kyoto Univ. (Japan); Shinohara, Nobuo

    1997-03-01

    By making use of back-to-back type double fission chambers and a lead slowing-down spectrometer coupled to an electron linear accelerator, the fission cross section for the {sup 243}Am(n,f) reaction has been measured relative to that for the {sup 235}U(n,f) reaction in the energy range from 0.1 eV to 10 keV. The measured result was compared with the evaluated nuclear data appeared in ENDF/B-VI and JENDL-3.2, whose evaluated data were broadened by the energy resolution function of the spectrometer. General agreement was seen between the evaluated data and the measurement except that the ENDF/B-VI data were lower in the range from 15 to 60 eV and that the JENDL-3.2 data seemed to be lower above 100 eV. (author)

  20. 30 CFR 243.10 - When will MMS collect against a bond or other surety instrument or a person demonstrating...

    Science.gov (United States)

    2010-07-01

    ... MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.10 When will MMS collect against... that decision to the IBLA under 43 CFR part 4, subpart E; (2) If the IBLA, the Director of the...

  1. Measurement and analysis of the $^{243}$Am neutron capture cross section at the n_TOF facility at CERN

    CERN Document Server

    Mendoza, E; Guerrero, C; Berthoumieux, E; Abbondanno, U; Aerts, G; Alvarez-Velarde, F; Andriamonje, S; Andrzejewski, J; Assimakopoulos, P; Audouin, L; Badurek, G; Balibrea, J; Baumann, P; Becvar, F; Belloni, F; Calvino, F; Calviani, M; Capote, R; Carrapico, C; Carrillo de Albornoz, A; Cennini, P; Chepel, V; Chiaveri, E; Colonna, N; Cortes, G; Couture, A; Cox, J; Dahlfors, M; David, S; Dillmann, I; Dolfini, R; Domingo-Pardo, C; Dridi, W; Duran, I; Eleftheriadis, C; Ferrant†, L; Ferrari, A; Ferreira-Marques, R; Fitzpatrick, L; Frais-Koelbl, H; Fujii, K; Furman, W; Goncalves, I; Gonz alez-Romero, E; Goverdovski, A; Gramegna, F; Griesmayer, E; Gunsing, F; Haas, B; Haight, R; Heil, M; Herrera-Martinez, A; Igashira, M; Isaev, S; Jericha, E; Kappeler, F; Kadi, Y; Karadimos, D; Karamanis, D; Ketlerov, V; Kerveno, M; Koehler, P; Konovalov, V; Kossionides, E; Krticka, M; Lampoudis, C; Leeb, H; Lindote, A; Lopes, I; Lossito, R; Lozano, M; Lukic, S; Marganiec, J; Marques, L; Marrone, S; Martınez, T; Massimi, C; Mastinu, P; Mengoni, A; Milazzo, P M; Moreau, C; Mosconi, M; Neves, F; Oberhummer, H; O’Brien, S; Oshima, M; Pancin, J; Papachristodoulou, C; Papadopoulos, C; Paradela, C; Patronis, N; Pavlik, A; Pavlopoulos, P; Perrot, L; Pigni, M T; Plag, R; Plompen, A; Plukis, A; Poch, A; Praena, J; Pretel, C; Quesada, J; Rauscher, T; Reifarth, R; Rosetti, M; Rubbia, C; Rudolf, G; Rullhusen, P; Salgado, J; Santos, C; Sarchiapone, L; Savvidis, I; Stephan, C; Tagliente, G; Tain, J L; Tassan-Got, L; Tavora, L; Terlizzi, R; Vannini, G; Vaz, P; Ventura, A; Villamarin, D; Vicente, M C; Vlachoudis, V; Vlastou, R; Voss, F; Walter, S; Wendler, H; Wiescher, M; Wisshak, K

    2014-01-01

    Background:The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Reduce the $^{243}$Am(n,$\\gamma$) cross section uncertainty. Method: The $^{243}$Am(n,$\\gamma$) cross section has been measured at the n_TOF facility at CERN with a BaF$_{2}$ Total Absorption Calorimeter, in the energy range between 0.7 eV and 2.5 keV. Results: The $^{243}$Am(n,$\\gamma$) cross section has been successfully measured in the mentioned energy range. The resolved resonance region has been extended from 250 eV up to 400 eV. In the unresolved resonance region our results are compatible with one of the two incompatible capture data sets available below 2.5 keV. The data available in EXFOR and in the literature has been used to perform a simple analysis above 2.5 keV. Conclusions: The results of this measurement contribute to reduce the $^{243}$Am(n,$\\gamma$) cross section uncertainty and suggest that this cross section is underestimate...

  2. Phosphorylation of HPV-16 E2 at serine 243 enables binding to Brd4 and mitotic chromosomes.

    Directory of Open Access Journals (Sweden)

    Szu-Wei Chang

    Full Text Available The papillomavirus E2 protein is involved in the maintenance of persistent infection and known to bind either to cellular factors or directly to mitotic chromosomes in order to partition the viral genome into the daughter cells. However, how the HPV-16 E2 protein acts to facilitate partitioning of the viral genome remains unclear. In this study, we found that serine 243 of HPV-16 E2, located in the hinge region, is crucial for chromosome binding during mitosis. Bromodomain protein 4 (Brd4 has been identified as a cellular binding target through which the E2 protein of bovine papillomavirus type 1 (BPV-1 tethers the viral genome to mitotic chromosomes. Mutation analysis showed that, when the residue serine 243 was substituted by glutamic acid or aspartic acid, whose negative charges mimic the effect of constitutive phosphorylation, the protein still can interact with Brd4 and colocalize with Brd4 in condensed metaphase and anaphase chromosomes. However, substitution by the polar uncharged residues asparagine or glutamine abrogated Brd4 and mitotic chromosome binding. Moreover, following treatment with the inhibitor JQ1 to release Brd4 from the chromosomes, Brd4 and E2 formed punctate foci separate from the chromosomes, further supporting the hypothesis that the association of the HPV-16 E2 protein with the chromosomes is Brd4-dependent. In addition, the S243A E2 protein has a shorter half-life than the wild type, indicating that phosphorylation of the HPV-16 E2 protein at serine 243 also increases its half-life. Thus, phosphorylation of serine 243 in the hinge region of HPV-16 E2 is essential for interaction with Brd4 and required for host chromosome binding.

  3. Expansion parallax for the compact planetary nebula M2-43

    Directory of Open Access Journals (Sweden)

    L. Guzmán

    2006-01-01

    Full Text Available Presentamos observaciones de alta calidad en radiocontinuo hechas a 3.6 cm con el Very Large Array en dos épocas hacia la nebulosa planetaria M2-43. La comparación de las dos épocas, obtenidas con una separación de 4.07 años, muestra claramente la expansión de la nebulosa planetaria con una velocidad angular de 0.61_0.09 mas año_1. Suponiendo que la velocidad de expansión en el plano del cielo (determinada de estas mediciones y la velocidad de expansión en la línea de visión (determinada a partir de espectroscopía óptica disponible en la literatura son iguales, encontramos una distancia de 6.9 1.5 kpc a la nebulosa planetaria. Esta es la mayor distancia a una nebulosa planetaria medida hasta ahora con esta técnica.

  4. Physiological roles for two periplasmic nitrate reductases in Rhodobacter sphaeroides 2.4.3 (ATCC 17025).

    Science.gov (United States)

    Hartsock, Angela; Shapleigh, James P

    2011-12-01

    The metabolically versatile purple bacterium Rhodobacter sphaeroides 2.4.3 is a denitrifier whose genome contains two periplasmic nitrate reductase-encoding gene clusters. This work demonstrates nonredundant physiological roles for these two enzymes. One cluster is expressed aerobically and repressed under low oxygen while the second is maximally expressed under low oxygen. Insertional inactivation of the aerobically expressed nitrate reductase eliminated aerobic nitrate reduction, but cells of this strain could still respire nitrate anaerobically. In contrast, when the anaerobic nitrate reductase was absent, aerobic nitrate reduction was detectable, but anaerobic nitrate reduction was impaired. The aerobic nitrate reductase was expressed but not utilized in liquid culture but was utilized during growth on solid medium. Growth on a variety of carbon sources, with the exception of malate, the most oxidized substrate used, resulted in nitrite production on solid medium. This is consistent with a role for the aerobic nitrate reductase in redox homeostasis. These results show that one of the nitrate reductases is specific for respiration and denitrification while the other likely plays a role in redox homeostasis during aerobic growth. PMID:21949073

  5. 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.

  6. D2-43病毒E蛋白在酵母细胞表面的展示%Display of the envelope protein of D2-43 on yeast cells surface

    Institute of Scientific and Technical Information of China (English)

    陈水平; 范宝昌; 姜涛; 秦成峰; 邓永强; 彭文明; 段鸿元; 秦鄂德

    2004-01-01

    目的:在酵母细胞表面展示登革2型病毒43株(D2-43)的E基因,探索利用酵母表面展示系统建立DNA改组筛选平台的可行性.方法:通过RT-PCR扩增获得D2-43的E基因,将该基因亚克隆至T载体后,再克隆至酵母表面展示载体pYD1,于酿酒酵母EBY100中利用半乳糖进行诱导表达.表达产物采用间接免疫荧光法和FACS进行检测.结果:酵母表面展示产物可与D2-43的腹水抗体特异性地结合;在半乳糖诱导后24 h,展示E蛋白的酵母细胞百分数达22.07%.结论:本研究为建立基于酵母表面展示系统的DNA改组筛选平台奠定了基础.

  7. 优质花生新品种龙花243示范表现与高产栽培技术%Demonstration performance and high-yielding cultivation technique of high-quailty new variety Longhua243

    Institute of Scientific and Technical Information of China (English)

    李培德

    2011-01-01

    New peanut variety Longhua243 was bred by Longyan Agricultural Science Institute,Fujian Province and demonstrated in Shishi City.This cultivar displayed traits of high yield,good quality,uniformity of population and strong vitality.This paper concluded high-yield cultivation techniques including selection of seeds,optimization of sowing technology,fertilizer and water management,disease and pest control,etc.%龙花243系龙岩市农业科学研究所育成的优质花生新品种,在石狮市引进龙花243进行示范种植,表现丰产性和稳产性较好,植株整齐、长势较好等特点。总结出精选种子、优化播种技术、科学施肥、科学管水、加强病虫害防治等高产配套技术。

  8. The influence of impurities for cross section measurement of {sup 241,243}Am(n,f) reactions

    Energy Technology Data Exchange (ETDEWEB)

    Kai, Tetsuya; Kobayashi, Katsuhei; Yamamoto, Shuji; Fujita, Yoshiaki; Kimura, Itsuro; Miyoshi, Mitsuharu; Yamamoto, Hideki [Kyoto Univ. (Japan); Shinohara, Nobuo

    1997-03-01

    The influence of the impurities on the fission cross section measurements for {sup 241}Am and {sup 243}Am has been investigated with the practical results. Following cases have been considered as the influence of impurities; (a) experiments with the {sup 241}Am sample that contains impurities originally, and (b) experiments with the {sup 243}Am sample that contains impurities produced by {alpha}, {beta} decays after the chemical purification. The present study has demonstrated the usefulness of pure samples by the comparison of the experiments using the sample on the market with those using the pure sample processed by the authors. Particularly on the case (b), the correction of the impurity through the periodical measurements was experimentally performed (about 18% around 0.3 eV in 4 weeks after the chemical purification). (author)

  9. Reaction mechanisms in 24.3 MeV/nucleon 238U induced reactions through a comprehensive study of fission

    International Nuclear Information System (INIS)

    Nuclear reaction mechanisms for system characterized by very different asymmetries (U+C, Si, Ni, Au) have been investigated at 24.3 MeV/nucleon, using as observables both the fission products and the neutron multiplicity. It is clearly observed that the fusion process-whatever its completeness- can only occur with rather light target nuclei, indicating the persistence of potential energy effects much above the interaction barrier. (authors). 22 refs., 1 fig

  10. Overview of NATO/AC 243/Panel 3 activities concerning radiowave propagation in coastal environments

    Science.gov (United States)

    Christophe, F.; Douchin, N.; Hurtaud, Y.; Dion, D.; Makaruschka, R.; Heemskerk, H.; Anderson, K.

    1995-02-01

    The performances of most systems operating at RF and millimeter waves can be seriously affected by propagation effects. That is the reason why NATO established the Research Study group No. 8 (RSG8) within Panel 3 (physics and electronics) of Defense Research Group (AC 243), with its Propagation Subgroup (PSG) responsible for the propagation aspects. Comparison of mm and other wavelengths was to be considered. In maritime and coastal environments, the use of such wavelengths for various military applications like anti-ship seekers, fire control radars, ship to ship communications or Electronic Support Measurements (ESM) led to the setting up of specific measurement campaigns; the last three are reported hereafter. The first two experiments used facilities close to Lorient, on the Atlantic coast, and Toulon, on the Mediterranean coast of France, with the purpose of documenting the refractive effects for medium range over the horizon paths. These experiments where are referred to as Lorient 89 and Toulon 90 campaigns, are described in this paper, and some typical results are presented. The latest cooperative work of RSG8/PSG took place recently (fall 1993) near Lorient, on a line-of-sight 10 km path over seawater. This experiment, referred to as Lorient 93 campaign, was devoted to the analysis of phase-front distortions due to multipath along with refractive effects, and to the assessment of performances for naval systems like short range tracking radars. Analysis of the data, either on a statistical base or as specific case studies, is being performed presently, but some early typical results will be given in this paper after a detailed description of the experiment.

  11. Investigating SLIM Disk Solutions FOR HLX-1 IN ESO 243-49

    Science.gov (United States)

    Godet, O.; Plazolles, B.; Kawaguchi, T.; Lasota, J.-P; Barret, d.; Farrell, S. A.; Braito, V.; Servillat, M.; Webb, N.; Gehrels, N.

    2012-01-01

    The hyperluminous X-ray source HLX-1 in the galaxy ESO 243-49, currently the best intermediate-mass blackhole (BH) candidate, displays spectral transitions similar to those observed in Galactic BH binaries, but with aluminosity 100-1000 times higher. We investigated the X-ray properties of this unique source by fitting multiepochdata collected by Swift, XMM-Newton, and Chandra with a disk model computing spectra for a wide rangeof sub- and super-Eddington accretion rates assuming a non-spinning BH and a face-on disk (i=0 deg.). Under theseassumptions we find that the BH in HLX-1 is in the intermediate-mass range (approximately 2 x 10(exp 4) solar mass) and the accretionflow is in the sub-Eddington regime. The disk radiation efficiency is eta = 0.11 plus or minus 0.03. We also show that the source does follow the LX is proportional to T(exp 4) relation for our mass estimate. At the outburst peaks, the source radiates near the Eddington limit. The accretion rate then stays constant around 4 x 10(exp 4) solar mass yr (sup -1) for several days and then decreases exponentially. Such plateaus in the accretion rate could be evidence that enhanced mass-transfer rateis the driving outburst mechanism in HLX-1. We also report on the new outburst observed in 2011 August by theSwift X-Ray Telescope. The time of this new outburst further strengthens the approximately 1 year recurrence timescale.

  12. 30 CFR 243.6 - When must I or another person meet the bonding or financial solvency requirements under this part?

    Science.gov (United States)

    2010-07-01

    ... MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.6 When must I or another person meet...

  13. 30 CFR 243.9 - Will MMS continue to suspend my obligation to comply with an order if I seek judicial review in a...

    Science.gov (United States)

    2010-07-01

    ... MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.9 Will MMS continue to suspend...

  14. 30 CFR 243.5 - May another person post a bond or other surety instrument or demonstrate financial solvency on my...

    Science.gov (United States)

    2010-07-01

    ... MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR MINERALS REVENUE MANAGEMENT SUSPENSIONS PENDING APPEAL AND BONDING-MINERALS REVENUE MANAGEMENT General Provisions § 243.5 May another person post a bond or...

  15. The chiral transition on a 243 x 10 lattice with Nf = 2 clover sea quarks studied by overlap valence quarks

    International Nuclear Information System (INIS)

    Overlap fermions are particularly well suited to study the finite temperature dynamics of the chiral symmetry restoration transition of QCD, which might be just an analytic crossover. Using gauge field configurations on a 243 x 10 lattice with Nf=2 flavours of dynamical Wilson-clover quarks generated by the DIK collaboration, we compute the lowest 50 eigenmodes of the overlap Dirac operator and try to locate the transition by fermionic means. We analyse the spectral density, local chirality and localisation properties of the low-lying modes and illustrate the changing topological and (anti-) selfdual structure of the underlying gauge fields across the transition. (orig.)

  16. 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)

  17. Chandra and Swift Follow-up Observations of the Intermediate Mass Black Hole in ESO243-49

    CERN Document Server

    Webb, N A; Godet, O; Servillat, M; Farrell, S A; Oates, S R

    2010-01-01

    The brightest Ultra-Luminous X-ray source HLX-1 in the galaxy ESO 243-49 provides strong evidence for the existence of intermediate mass black holes. As the luminosity and thus the mass estimate depend on the association of HLX-1 with ESO 243-49, it is essential to confirm its affiliation. This requires follow-up investigations at wavelengths other than X-rays, which in-turn needs an improved source position. To further reinforce the intermediate mass black hole identification, it is necessary to determine HLX-1's environment to establish whether it could potentially form and nourish a black hole at the luminosities observed. Using the High Resolution Camera onboard Chandra, we determine a source position of RA=01h10m28.3s and Dec=-46d04'22.3". A conservative 95% error of 0.3" was found following a boresight correction by cross-matching the positions of 3 X-ray sources in the field with the 2MASS catalog. Combining all Swift UV/Optical Telescope uvw2 images, we failed to detect a UV source at the Chandra posi...

  18. Discovery of an optical counterpart to the hyperluminous X-ray source in ESO 243-49

    CERN Document Server

    Soria, Roberto; Graham, Alister W; Kong, Albert K H; Kuin, N Paul M; Li, I-Hui; Liu, Ji-Feng; Wu, Kinwah

    2009-01-01

    The existence of black holes of masses ~ 10^3-10^4 Msun has important implications for the formation and evolution of star clusters and galaxies. The strongest candidate so far is the hyperluminous X-ray source HLX1, apparently located in the S0-a galaxy ESO 243-49, but the lack of an identifiable optical counterpart had hampered its interpretation. Using the Magellan telescope, we discovered an unresolved optical source with R = (24.6 +/- 0.2) mag and V = (25.4 +/- 0.3) mag within the X-ray error circle. This implies an X-ray/optical flux ratio ~ 1000. Taking the same distance as ESO 243-49, we obtain an intrinsic brightness M_R = (-10.2 +/- 0.3) mag. With the combined optical and X-ray measurements, we put constraints on the nature of HLX1. We rule out a foreground star and a background AGN. A foreground accreting neutron star is unlikely but cannot be completely ruled out. We also examined the properties of the host galaxy by combining Swift/UVOT observations with stellar population modelling. We found tha...

  19. Recoil-alpha-fission and recoil-alpha-alpha-fission events observed in the reaction Ca-48 + Am-243

    CERN Document Server

    Forsberg, U; Andersson, L -L; Di Nitto, A; Düllmann, Ch E; Gates, J M; Golubev, P; Gregorich, K E; Gross, C J; Herzberg, R -D; Hessberger, F P; Khuyagbaatar, J; Kratz, J V; Rykaczewski, K; Sarmiento, L G; Schädel, M; Yakushev, A; Åberg, S; Ackermann, D; Block, M; Brand, H; Carlsson, B G; Cox, D; Derkx, X; Dobaczewski, J; Eberhardt, K; Even, J; Fahlander, C; Gerl, J; Jäger, E; Kindler, B; Krier, J; Kojouharov, I; Kurz, N; Lommel, B; Mistry, A; Mokry, C; Nazarewicz, W; Nitsche, H; Omtvedt, J P; Papadakis, P; Ragnarsson, I; Runke, J; Schaffner, H; Schausten, B; Shi, Y; Thörle-Pospiech, P; Torres, T; Traut, T; Trautmann, N; Türler, A; Ward, A; Ward, D E; Wiehl, N

    2015-01-01

    Products of the fusion-evaporation reaction Ca-48 + Am-243 were studied with the TASISpec set-up at the gas-filled separator TASCA at the GSI Helmholtzzentrum f\\"ur Schwerionenforschung. Amongst the detected thirty correlated alpha-decay chains associated with the production of element Z=115, two recoil-alpha-fission and five recoil-alpha-alpha-fission events were observed. The latter are similar to four such events reported from experiments performed at the Dubna gas-filled separator. Contrary to their interpretation, we propose an alternative view, namely to assign eight of these eleven decay chains of recoil-alpha(-alpha)-fission type to start from the 3n-evaporation channel 115-288. The other three decay chains remain viable candidates for the 2n-evaporation channel 115-289.

  20. Viscosity Measurements of Ethyl Fluoride (R161) from 243 K to 363 K at Pressures up to 30 MPa

    Science.gov (United States)

    Meng, Xianyang; Gu, Xiaoyun; Wu, Jiangtao; Bi, Shengshan

    2015-11-01

    The Montreal Protocol and its subsequent amendments have created a schedule to replace ozone depletion substances, such as chlorofluorocarbons and hydrochlorofluorocarbons, with chlorine-free molecules in several industrial applications. Ethyl fluoride (R161, C2H5F, 353-36-6) was found to be a potential alternative refrigerant for the replacement of controlled substances, such as R22 with excellent cycle performance. In this work, the viscosity of ethyl fluoride is reported at temperatures from 243 K to 363 K and at pressures from saturation pressure to 30 MPa. The experiment was performed with a calibrated vibrating-wire viscometer, which exhibited a combined expanded uncertainty of 2.5 % with a level of confidence of 0.95 (k = 2) for such a fluid. A scheme based on a hard-spheres model was used to correlate the experimental results. The average absolute deviation of the experimental results from the correlations for R161 is 0.88 %.

  1. A monolithic collapse origin for the thin and thick disc structure of the S0 galaxy ESO 243-49

    Science.gov (United States)

    Comerón, S.; Salo, H.; Peletier, R. F.; Mentz, J.

    2016-09-01

    ESO 243-49 is a high-mass (circular velocity vc ≈ 200 km s-1), edge-on S0 galaxy in the Abell 2877 cluster at a distance of ~95 Mpc. To elucidate the origin of the thick disc of this S0 galaxy, we use Multi Unit Spectroscopic Explorer (MUSE) science verification data to study its kinematics and stellar populations. The thick disc emits ~80% of the light at heights in excess of 3.5 arcsec (1.6 kpc). The rotation velocities of its stars lag by 30-40 km s-1 compared to those in the thin disc, which is compatible with the asymmetric drift. The thick disc is found to be more metal-poor than the thin disc, but both discs have old ages. We suggest an internal origin for the thick disc stars in high-mass galaxies. We propose that the thick disc formed either a) first in a turbulent phase with a high star formation rate and that a thin disc formed shortly afterwards, or b) because of the dynamical heating of a thin pre-existing component. Either way, the star formation in ESO 243-49 was quenched just a few Gyr after the galaxy was born and the formation of a thin and a thick disc must have occurred before the galaxy stopped forming stars. The formation of the discs was so fast that it could be described as a monolithic collapse where several generations of stars formed in rapid succession. Based on observations made at the European Southern Observatory using the Very Large Telescope under programme 60.A-9328(A).

  2. Synthesis of 24S and 24R-hydroxy-[24-3H] vitamin D3 and their metabolism in rachitic rats

    International Nuclear Information System (INIS)

    An epimeric mixture of 24-hydroxy-[24-3H] vitamin D3 was synthesized by the reduction of 24-ketovitamin D3 by sodium borotritide. The epimeric mixture was converted to the trimethylsilylether derivatives and subjected to high-pressure liquid chromatography using silica gel columns to separate the 24-hydroxy-[24-3H] vitamin D3 isomers. The 24R-hydroxy-[24-3H]vitamin D3 induced calcification in rachitic rats while the 24S-hydroxy-[24-3H]vitamin D3 had little or no such activity. As both isomers of 24-hydroxy-vitamin D3 are metabolized to 24,25-dihydroxyvitamin D3, it appears that the 24-hydroxyvitamin D3-25-hydroxylase does not discriminate between the isomers. Only the R-isomer of 24-hydroxyvitamin D3 is metabolized to 1,24-dihydroxyvitamin D3, although only trace amounts of this compound were found 2 days after the administration of 24-hydroxyvitamin D3. The striking difference in the metabolism of the isomers is the high selectivity of the 1-hydroxylase for the R-isomer. It is suggested that the high specificity of biological activity for the R-isomer of 24-hydroxyvitamin D3 is because of the specificity of the 1-hydroxylation of 24,25-dihydroxyvitamin D3 for the R configuration

  3. 243例双J管内引流的并发症和处置%Complications and treatment for internal drainage with double-J tube in 243 cases

    Institute of Scientific and Technical Information of China (English)

    鄢俊安; 杨超; 张恒; 沈文浩; 李龙坤; 陈志文; 周占松; 李为兵

    2011-01-01

    Objective To anatyze the comptications of internat drainage with doubte-J tube and to discuss ihe disposat programs. Methods The comptications of 243 patients who underwent internat drainage with doubte-J tube from 2008 to 2010 in our institute were ret-rospectivety anatyzed and the disposat programs were discussed. Resutts There were seven kinds of comptications inctuding discomfort of tocation (72 cases,29. 6% ) , bteeding (34 cases, 14. 0% ) , catcutus in tube watt( 19 cases,7. 8% ) , reftux ( 32 cases, 13. 2% ) , infection (47 cases,19. 3% ) ,painfutness (36 cases, 14. 8% ) ,doubte-J tube rupture (3 cases, 1. 2% ) , etc. Att of them were given symptomatic treatment. Conctusion The tocations shoutd be adjusted according to the conditions in the ptacement of doubte-J tube. The doubte-J tube shoutd be removed immediatety if comptications of severe infection,urinary reftux and hematuria occurred.%目的 分析双J管内引流的并发症,探讨其处置方案.方法 对2008年至2010年在我院诊治置入双J管的部分病例所发的并发症进行回顾性分析,探讨和总结处置方式.结果 243例双J管内引流所致的并发症主要有7种,包括位置不适(72例,29.6%)、出血(34例,14.0%)、管壁伴发结石(19例,7.8%)、返流(32例,13.2%)、感染(47例,19.3%)、疼痛(36例,14.8%)、双J管断裂(3例,1.2%)等,分别给予了对症处理.结论 在双J管留置体内过程中根据情况调整双J管的位置,若产生严重的感染、尿液返流、血尿等并发症时,宜尽早拔除双J管.

  4. Hidrocefalia derivada na infância: um estudo clínico-epidemiológico de 243 observações consecutivas Shunted hydrocephalus in childhood: an epidemiological study of 243 consecutive observations

    Directory of Open Access Journals (Sweden)

    Susana Ely Kliemann

    2005-06-01

    Full Text Available Os objetivos deste estudo foram analisar as características epidemiológicas e clínicas de 243 crianças com hidrocefalia derivada, acompanhadas durante 1 a 27 anos, assim como identificar os fatores relacionados aos distúrbios psicomotores, epilepsia e ao óbito. A meningite pós-derivação e os distúrbios mecânicos do sistema foram as complicações mais freqüentes (22,3% e 30,7%, respectivamente. A média de derivação por paciente foi 1,47. Distúrbios motores graves ocorreram em 34,3%, déficit cognitivo em 58,5% e epilepsia em 43,6% dos pacientes. Os distúrbios motores correlacionaram-se positivamente com o grau da hidrocefalia. Houve maior incidência de déficit cognitivo e epilepsia nos casos de hidrocefalia pós-meningite. O óbito ocorreu em 52 pacientes e estes apresentaram um percentual maior de neoplasia do sistema nervoso central e de distúrbios motores na última avaliação, assim como de retirada da primeira derivação por meningite precoce, ocorrida até 2 meses após a derivação.This study aimed to evaluate the epidemiological and clinical data of 243 children with shunted hydrocephalus, followed-up during 1 to 27 years, as well as to identify the risk factors for psychomotor disturbances, epilepsy and death. Postoperative meningitis and mechanical problems were the most frequent complications (22.3% and 30.7%, respectively. There was an average of 1.47 shunt per patient. Severe motor disturbances occurred in 34.3%, cognitive deficits in 58.5% and epilepsy in 43.6%. Motor disturbances correlated positively with the degree of hydrocephalus. The majority of patients with hydrocephalus due to meningitis presented cognitive deficits and a significant incidence of epilepsy. Death occurred in 52 patients and there was a higher percentage of brain tumours in this group, as well as the replacement of the first shunt device due to precocious postoperative meningitis.

  5. 243例乳腺癌患者配偶照顾负担及影响因素研究%The level and influencing factors of caregiver burden among 243 spouses of women with breast cancer

    Institute of Scientific and Technical Information of China (English)

    邾萍; 付菊芳; 王波; 林静; 凌瑞; 郭丝锦; 房宁宁; 王丹丹

    2013-01-01

    Objective To investigate the level and influencing factors of spouse caregiver burden of women with breast cancer.Methods Totally 243 spouses of women with breast cancer were investigated with Zarit Burden Interview (ZBI)and Social Support Rating Scale (SSRS).The patients were investigated with M.D.Anderson Symptom Inventory(MDASI-C).Results The spouse caregiver burden was in the middle level with a total score of 33.99±14.28.The influencing factors were life stress events,subjective support,daily sleep time of spouses,the symptom severity and cancer stage of patients and monthly family income.Conclusion The spouse caregivers of women with breast cancer suffer from middle level of burden.Nurses should assess the caregiver burden and provide targeted interventions to relieve spouse caregiver burden and promote their quality of life.%目的 了解乳腺癌患者配偶照顾负担现状及影响因素.方法 对243例乳腺癌患者配偶照顾者采用照顾负担量表(ZBI)、社会支持量表(SSRS)进行调查,对患者采用安德森症状量表(MDSAI-C)进行调查.结果 配偶照顾负担总分为(33.99±14.28)分,为中度负担水平.影响因素为配偶生活应激事件、主观支持、睡眠时间、患者症状严重程度和肿瘤分期、家庭人均月收入.结论 乳腺癌患者配偶存在中度照顾负担,护理人员应通过同步评估患者与配偶,了解配偶的照顾负担,主动给予配偶照顾者针对性的护理服务,从而减轻其照顾负担,提高其生活质量.

  6. Experimental and theoretical study of the photodissociation reaction of thiophenol at 243 nm: Intramolecular orbital alignment of the phenylthiyl radical

    International Nuclear Information System (INIS)

    The photoinduced hydrogen (or deuterium) detachment reaction of thiophenol (C6H5SH) or thiophenol-d1 (C6H5SD) pumped at 243 nm has been investigated using the H (D) ion velocity map imaging technique. Photodissociation products, corresponding to the two distinct and anisotropic rings observed in the H (or D) ion images, are identified as the two lowest electronic states of phenylthiyl radical (C6H5S·). Ab initio calculations show that the singly occupied molecular orbital of the phenylthiyl radical is localized on the sulfur atom and it is oriented either perpendicular or parallel to the molecular plane for the ground (B1) and the first excited state (B2) species, respectively. The experimental energy separation between these two states is 2600±200 cm-1 in excellent agreement with the authors' theoretical prediction of 2674 cm-1 at the CASPT2 level. The experimental anisotropy parameter (β) of -1.0±0.05 at the large translational energy of D from the C6H5SD dissociation indicates that the transition dipole moment associated with this optical transition at 243 nm is perpendicular to the dissociating S-D bond, which in turn suggests an ultrafast D+C6H5S·(B1) dissociation channel on a repulsive potential energy surface. The reduced anisotropy parameter of -0.76±0.04 observed at the smaller translational energy of D suggests that the D+C6H5S·(B2) channel may proceed on adiabatic reaction paths resulting from the coupling of the initially excited state to other low-lying electronic states encountered along the reaction coordinate. Detailed high level ab initio calculations adopting multireference wave functions reveal that the C6H5S·(B1) channel may be directly accessed via a 1(nπ,σ*) photoexcitation at 243 nm while the key feature of the photodissociation dynamics of the C6H5S·(B2) channel is the involvement of the 3(nπ,π*)→3(nσ,σ*) profile as well as the spin-orbit induced avoided crossing between the ground and the 3(nπ,σ*) state. The S-D bond

  7. 一种利用HCIC快速纯化抗rhTF243单克隆抗体方法的研究%Study on fast purification of monoclonal antibody against rhTF243 protein with the technique of HCIC

    Institute of Scientific and Technical Information of China (English)

    赵峰梅; 齐延红; 何永吉; 潘薇薇; 卢晓霞; 粱雅丽; 赵邑

    2010-01-01

    目的:建立从小鼠腹水中快速纯化抗人重组组织因子243(recombine human tissue factor 243,rhTF243)单克隆抗体(monoclonal antibody,mAb)的方法.方法:含抗rhTF243单克隆抗体的腹水经离心、过滤及缓冲溶液变换等预处理后,先经疏水电荷诱导层析纯化处理,去除大部分杂蛋白,再经Protein A-Sepharose CL-4B亲和层析柱进一步纯化.结果:经两步纯化后获得抗rhTF243 单克隆抗体,其生物学活性高、纯度大于95%,抗体效价保持良好,抗体总回收率达73%,且具有明显的抗促凝作用.结论:建立的单克隆抗体纯化方法简便、高效,所得mAb的纯度高、生物学活性好.

  8. On the radio properties of the intermediate-mass black hole candidate ESO 243-49 HLX-1

    CERN Document Server

    Cseh, D; Godet, O; Barret, D; Corbel, S; Coriat, M; Falcke, H; Farrell, S A; Koerding, E; Lenc, E; Wrobel, J M

    2014-01-01

    We present follow-up radio observations of ESO 243-49 HLX-1 from 2012 using the Australia Telescope Compact Array (ATCA) and the Karl G. Jansky Very Large Array (VLA). We report the detection of radio emission at the location of HLX-1 during its hard X-ray state using the ATCA. Assuming that the `Fundamental Plane' of accreting black holes is applicable, we provide an independent estimate of the black hole mass of $M_{\\rm{BH}}\\leq2.8^{+7.5}_{-2.1} \\times 10^{6}$ M$_{\\odot}$ at 90% confidence. However, we argue that the detected radio emission is likely to be Doppler-boosted and our mass estimate is an upper limit. We discuss other possible origins of the radio emission such as being due to a radio nebula, star formation, or later interaction of the flares with the large-scale environment. None of these were found adequate. The VLA observations were carried out during the X-ray outburst. However, no new radio flare was detected, possibly due to a sparse time sampling. The deepest, combined VLA data suggests a ...

  9. Physiological Roles for Two Periplasmic Nitrate Reductases in Rhodobacter sphaeroides 2.4.3 (ATCC 17025)▿

    Science.gov (United States)

    Hartsock, Angela; Shapleigh, James P.

    2011-01-01

    The metabolically versatile purple bacterium Rhodobacter sphaeroides 2.4.3 is a denitrifier whose genome contains two periplasmic nitrate reductase-encoding gene clusters. This work demonstrates nonredundant physiological roles for these two enzymes. One cluster is expressed aerobically and repressed under low oxygen while the second is maximally expressed under low oxygen. Insertional inactivation of the aerobically expressed nitrate reductase eliminated aerobic nitrate reduction, but cells of this strain could still respire nitrate anaerobically. In contrast, when the anaerobic nitrate reductase was absent, aerobic nitrate reduction was detectable, but anaerobic nitrate reduction was impaired. The aerobic nitrate reductase was expressed but not utilized in liquid culture but was utilized during growth on solid medium. Growth on a variety of carbon sources, with the exception of malate, the most oxidized substrate used, resulted in nitrite production on solid medium. This is consistent with a role for the aerobic nitrate reductase in redox homeostasis. These results show that one of the nitrate reductases is specific for respiration and denitrification while the other likely plays a role in redox homeostasis during aerobic growth. PMID:21949073

  10. Preliminary results on ^241,243Am and ^235U (n,γ) cross sections measured at DANCE

    Science.gov (United States)

    Jandel, M.; Bredeweg, T. A.; Fowler, M. M.; Bond, E. M.; O'Donnell, J. M.; Reifarth, R.; Rundberg, R. S.; Ullmann, J. L.; Vieira, D. J.; Wilhelmy, J. B.; Wouters, J. M.; Macri, R. A.; Wu, C.-Y.; Becker, J. A.

    2006-10-01

    The Detector for Advanced Neutron Capture Experiments (DANCE) at Los Alamos National Laboratory (LANL) was used for neutron capture cross sections measurements. Its high granularity of 160 BaF2 detectors allows for highly efficient detection of prompt gamma-rays following a neutron capture. DANCE is located on the 20.26 m neutron flight path 14 at the Manuel Lujan Jr. Neutron Scattering Center at the Los Alamos Neutron Science Center (LANSCE). The moderated production target provides neutrons in the 0.02 eV - 500 keV energy range. An analysis of neutron capture measurements on ^241,243Am and ^235U targets will be presented. The experiments were carried out using a customized Parallel-Plate Avalanche Counter (PPAC) detector installed in the center of the DANCE array. The PPAC was used as a fission-tagging detector to separate (n,γ) from (n,fission) events. Preliminary results of (n,γ) cross sections will be presented and compared with the available evaluated data for neutron energies from 0.02 eV to 1 keV. Additional neutron capture measurements with DANCE will be briefly discussed.

  11. Autosomal recessive spastic paraplegia (SPG45) with mental retardation maps to 10q24.3-q25.1.

    Science.gov (United States)

    Dursun, Umut; Koroglu, Cigdem; Kocasoy Orhan, Elif; Ugur, Sibel Aylin; Tolun, Aslihan

    2009-10-01

    Hereditary spastic paraplegias (HSPs) are characterized by progressive spasticity in the lower limbs. They are clinically heterogeneous, and pure forms as well as complicated forms with other accompanying clinical findings are known. HSPs are also genetically heterogeneous. We performed clinical and genetic studies in a consanguineous family with five affected members. A genome scan using 405 microsatellite markers for eight members of the family identified candidate gene loci, and subsequent fine mapping in 16 members identified the gene locus responsible for the HSP. The clinical manifestations were very early onset spastic paraplegia (SPG) accompanied by mental retardation and ocular signs. The gene locus was identified as the interval 102.05-106.64 Mbp on chromosome 10. Gene MRPL43 was analyzed in the patients. No mutation but high levels of mRNA were detected. We have mapped a novel autosomal recessive complicated form of HSP (SPG45) to a 4.6-Mbp region at 10q24.3-q25.1 with multipoint logarithm of odds scores >4.5.

  12. Neutron capture cross section measurements of $^{238}$U, $^{241}$Am and $^{243}$Am at n_TOF

    CERN Multimedia

    Koehler, P E; Plag, R

    The increase of the world energy demand and the need of low carbon energy sources have triggered the renaissance and/or enhancement of nuclear energy in many countries. Fundamental nuclear physics can contribute in a practical way to the sustainability and safety of the nuclear energy production and the management of the nuclear waste. There exists a series of recent studies which address the most relevant isotopes, decay data, nuclear reaction channels and energy ranges which have to be investigated in more detail for improving the design of different advanced nuclear systems [1] and nuclear fuel cycles [2]. In this proposal, we aim at the measurement of the neutron capture cross sections of $^{238}$U, $^{241}$Am and $^{243}$Am. All three isotopes are listed in the NEA High Priority Request List [37], are recommended for measurements [1] and play an important role in the nuclear energy production and fuel cycle scenarios. The measurements will provide as well valuable nuclear structure data necessary for the...

  13. Gender Difference in Prevalence of Signs and Symptoms of Temporomandibular Joint Disorders: A Retrospective Study on 243 Consecutive Patients

    Directory of Open Access Journals (Sweden)

    Bora Bagis, Elif Aydogan Ayaz, Sedanur Turgut, Rukiye Durkan, Mutlu Özcan

    2012-01-01

    Full Text Available Background: This study evaluated the prevalence of the signs and symptoms of temporomandibular joint disorder (TMD among patients with TMD symptoms. Methods: Between September 2011 and December 2011, 243 consecutive patients (171 females, 72 males, mean age 41 years who were referred to the Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, Trabzon were examined physically and completed a questionnaire regarding age, gender, social status, general health, antidepressant drug usage, dental status, limited mouth opening, temporomandibular joint (TMJ sounds, and parafunctions (bruxism, clenching. The data were analyzed using the chi-square test and binary logistic regression model (alpha = 0.05. Results: With a frequency of 92%, pain in the temporal muscle was the most common symptom, followed by pain during mouth opening (89% in both genders. TMJ pain at rest, pain in the masseter muscle, clicking, grinding, and anti-depressant use were significantly more frequent in females than males. Age (p=0.006; odds ratio 0.954; 95% CI 0.922-0.987 and missing teeth (p=0.003; odds ratio 3.753; 95% CI 1.589-8.863 had significant effects on the prevalence of TMD. Conclusion: Females had TMD signs and symptoms more frequently than males in the study population. The most common problem in both genders was pain.

  14. 243株肠球菌属临床分离株分布及抗菌药物敏感性分析%Distribution and antibiotics sensitivity status of 243 strains of enterococcus from clinical samples

    Institute of Scientific and Technical Information of China (English)

    钱扬会; 郭建巍; 马骢; 郝秀红; 刘丽娟; 李艳君; 马学斌

    2011-01-01

    OBJECTIVE To explore the distribution and antibiotic sensitivity of 243 strains Enterococcus from clinical samples in navy general hospital from 2008 to 2010, to offer evidence for drug resistant monitoring and clinical antibiotics usage. METHODS All clinical specimens were isolated and cultured conforms to Standard Operation. The bacteria were identified by using the automatic microorganism analyzer VITEK, and bacteria's drug susceptibility tests were performed using K-B methods and Bio-Mic drug sensitivity analyzer. All the results were analyzed by Whonet 5.4 soft ware. RESULTS Totally 243 strains of Enterococcus were isolated in navy general hospital form 2008 to 2010. Enterococcus faecium and Enterococcus faecalis with a high incidence rate of 56.0% and 28.8%. Enterococcus casseli f avus , Enterococcus gallinarum , Enterococcus avium , Enterococcus durans and Enterococcus hirae with the incidence rates of 7.0%, 4.1 %, 2.1 %, 1.6% and 0.4% respectively.Urine, secretion and blood were the major samples accounted for 84.8%. E. faecalis was the major pathogenic bacteria causing urinary tract infection and then E. faecium and E. casselifavus which with high drug resistance rates. ICU, department of urinary surgery and department of Respiratory Medicine were main award sickroom of Enterococcus infection. Drug resistances of E. faecium were higher than E. faecalis. The top three resistance antibiotics against E. faecium were ampicillin, penicillin and erythromycin and with a resistance rate of 100.0%,97.1% and 93.4%. for E. faecalis, erythromycin, tetracycline and levofloxacin were major resistance antibiotics with a resistance rate of 80.0%, 42.9 % and 38.6% respectively. CONCLUSION Most of Enterococcus infection is due to E. faecium and there are a lot of differences for drug resistance in the strains of Enterococcus. The hospital administers should strengthen the management of antibiotics usage, it is necessary to rationally use

  15. Fission-product yields for thermal-neutron fission of 243Cm determined from measurements with a high-resolution low-energy germanium gamma-ray detector

    International Nuclear Information System (INIS)

    Cumulative fission-product yields have been determined for 13 gamma rays emitted during the decay of 12 fission products created by thermal-neutron fission of 243Cm. A high-resolution low-energy germanium detector was used to measure the pulse-height spectra of gamma rays emitted from a 77-nanogram sample of 243Cm after the sample had been irradiated by thermal neutrons. Analysis of the data resulted in the identification and matching of gamma-ray energies and half-lives to individual radioisotopes. From these results, 12 cumulative fission product yields were deduced for radionuclides with half-lives between 4.2 min and 84.2 min. 7 references

  16. Reaction mechanisms in 24.3 MeV/nucleon {sup 238}U induced reactions through a comprehensive study of fission

    Energy Technology Data Exchange (ETDEWEB)

    Chbihi, A.; Galin; Guerreau, D.; Lewitowicz, M.; Morjean, M.; Pouthas, J. [Grand Accelerateur National d`Ions Lourds (GANIL), 14 - Caen (France); Piasecki, E.; Kordyasz, A.; Iwanicki, J.; Jastrzebski, J.; Pienkowski, L. [Warsaw Univ. (Poland); Crema, E. [Sao Paulo Univ., SP (Brazil). Inst. de Fisica; Czarnacki, W.; Kisielinski, M.; Tucholski, A. [Soltan Inst. for Nuclear Studies, Otwock-Swierk (Poland); Gatty, B.; Jacquet, D. [Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire; Jahnke, U. [Hahn-Meitner-Institut Berlin GmbH (Germany); Muchorowska, M.

    1994-12-31

    Nuclear reaction mechanisms for system characterized by very different asymmetries (U+C, Si, Ni, Au) have been investigated at 24.3 MeV/nucleon, using as observables both the fission products and the neutron multiplicity. It is clearly observed that the fusion process-whatever its completeness- can only occur with rather light target nuclei, indicating the persistence of potential energy effects much above the interaction barrier. (authors). 22 refs., 1 fig.

  17. Novel heterozygous C243Y A20/TNFAIP3 gene mutation is responsible for chronic inflammation in autosomal-dominant Behçet's disease

    Science.gov (United States)

    Shigemura, Tomonari; Kaneko, Naoe; Kobayashi, Norimoto; Kobayashi, Keiko; Takeuchi, Yusuke; Nakano, Naoko; Masumoto, Junya; Agematsu, Kazunaga

    2016-01-01

    Objective Although Behçet's disease (BD) is a chronic inflammatory disorder of uncertain aetiology, the existence of familial BD with autosomal-dominant traits suggests that a responsibility gene (or genes) exists. We investigated a Japanese family with a history of BD to search for pathogenic mutations underlying the biological mechanisms of BD. Methods 6 patients over 4 generations who had suffered from frequent oral ulcers, genital ulcers and erythaema nodosum-like lesions in the skin were assessed. Whole-exome sequencing was performed on genomic DNA, and cytokine production was determined from stimulated mononuclear cells. Inflammatory cytokine secretion and Nod2-mediated NF-κB activation were analysed using the transfected cells. Results By whole-exome sequencing, we identified a common heterozygous missense mutation in A20/TNFAIP3, a gene known to regulate NF-κB signalling, for which all affected family members carried a heterozygous C243Y mutation in the ovarian tumour domain. Mononuclear cells obtained from the proband and his mother produced large amounts of interleukin 1β, IL-6 and tumour necrosis factor α (TNF-a) on stimulation as compared with those from normal controls. Although inflammatory cytokine secretion was suppressed by wild-type transfected cells, it was suppressed to a much lesser extent by mutated C243Y A20/TNFAIP3-transfected cells. In addition, impaired suppression of Nod2-mediated NF-κB activation by C243Y A20/TNFAIP3 was observed. Conclusions A C243Y mutation in A20/TNFAIP3 was likely responsible for increased production of human inflammatory cytokines by reduced suppression of NF-κB activation, and may have accounted for the autosomal-dominant Mendelian mode of BD transmission in this family. PMID:27175295

  18. De Novo 17q24.2-q24.3 microdeletion presenting with generalized hypertrichosis terminalis, gingival fibromatous hyperplasia, and distinctive facial features.

    Science.gov (United States)

    Afifi, Hanan H; Fukai, Ryoko; Miyake, Noriko; Gamal El Din, Amina A; Eid, Maha M; Eid, Ola M; Thomas, Manal M; El-Badry, Tarek H; Tosson, Angie M S; Abdel-Salam, Ghada M H; Matsumoto, Naomichi

    2015-10-01

    Generalized hypertrichosis is a feature of several genetic disorders, and the nosology of these entities is still provisional. Recent studies have implicated chromosome 17q24.2-q24.3 microdeletion and the reciprocal microduplication in a very rare form of congenital generalized hypertrichosis terminalis (CGHT) with or without gingival hyperplasia. Here, we report on a 5-year-old Egyptian girl born to consanguineous parents. The girl presented with CGHT and gingival hyperplasia for whom we performed detailed clinical, pathological, and molecular studies. The girl had coarse facies characterized by bilateral epicanthic folds, thick and abundant eyelashes, a broad nose, full cheeks, and lips that constituted the distinctive facial features for this syndrome. Biopsy of the gingiva showed epithelial marked acanthosis and hyperkeratosis with hyperplastic thick collagen bundles and dense fibrosis in the underlying tissues. Array analysis indicated a 17q24.2-q24.3 chromosomal microdeletion. We validated this microdeletion by real-time quantitative PCR and confirmed a perfect co-segregation of the disease phenotype within the family. In summary, this study indicates that 17q24.2-q24.3 microdeletion caused CGHT with gingival hyperplasia and distinctive facies, which should be differentiated from the autosomal recessive type that lacks the distinctive facies.

  19. Measurement of the neutron-induced fission cross-section of {sup 243}Am relative to {sup 235}U from 0.5 to 20 MeV

    Energy Technology Data Exchange (ETDEWEB)

    Belloni, F.; Milazzo, P.M.; Abbondanno, U.; Fujii, K.; Moreau, C. [Istituto Nazionale di Fisica Nucleare, Trieste (Italy); Calviani, M. [Laboratori Nazionali di Legnaro, Istituto Nazionale di Fisica Nucleare, Legnaro (Italy); CERN, Geneva (Switzerland); Colonna, N.; Barbagallo, M.; Marrone, S.; Meaze, M.H.; Tagliente, G.; Terlizzi, R. [Istituto Nazionale di Fisica Nucleare, Bari (Italy); Mastinu, P.; Gramegna, F. [Lab. Nazionali di Legnaro, Istituto Nazionale di Fisica Nucleare, Legnaro (Italy); Aerts, G.; Andriamonje, S.; Berthoumieux, E.; Dridi, W.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A. [Irfu, CEA, Gif-sur-Yvette (France); Alvarez, H.; Cano-Ott, D.; Duran, I.; Embid-Segura, M.; Gonzalez-Romero, E.; Paradela, C.; Tarrio, D. [Univ. de Santiago de Compostela, Galicia (Spain); Alvarez-Velarde, F.; Guerrero, C.; Martinez, T.; Villamarin, D.; Vincente, M.C. [Centro de Investigaciones Energeticas Medioambientales y Technologicas, Madrid (Spain); Andrzejewski, J.; Marganiec, J. [Univ. of Lodz (Poland); Audouin, L.; Dillmann, I.; Heil, M.; Kaeppeler, F.; Mosconi, M.; Plag, R.; Voss, F.; Walter, S.; Wisshak, K. [Karlsruhe Inst. of Technology, Eggenstein-Leopoldshafen (Germany). Inst. fuer Kernphysik; Badurek, G.; Jericha, E.; Leeb, H.; Oberhummer, H. [Technische Univ. Wien, Atominstitut der Oesterreichischen Universitaeten, Wien (Austria); Baumann, P.; David, S.; Kerveno, M.; Lukic, S.; Rudolf, G. [IReS, Centre National de la Recherche Scientifique/IN2P3, Strasbourg (France); Becvar, F.; Krticka, M. [Charles Univ., Faculty of Mathematics and Physics, Prague (Czech Republic); Calvino, F.; Cortes, G.; Poch, A.; Pretel, C. [Univ. Politecnica de Catalunya, Barcelona (Spain); Capote, R. [NAPC/Nuclear Data Section, International Atomic Energy Agency, Vienna (Austria); Univ. de Sevilla (Spain); Carrapico, C.; Goncalves, I.; Salgado, J.; Santos, C.; Tavora, L.; Vaz, P. [Inst. Tecnologico e Nuclear, Lisbon (Portugal)] [and others

    2011-12-15

    The ratio of the neutron-induced fission cross-sections of {sup 243}Am and {sup 235}U was measured in the energy range from 0.5 to 20 MeV with uncertainties of {approx} 4%. The experiment was performed at the CERN n{sub T}OF facility using a fast ionization chamber. With the good counting statistics that could be achieved thanks to the high instantaneous flux and the low backgrounds, the present results are useful for resolving discrepancies in previous data sets and are important for future reactors with improved fuel burn-up. (orig.)

  20. Partial monosomy 8q and partial trisomy 9q due to the maternal translocation t(8;9(q24.3;q34.1)

    DEFF Research Database (Denmark)

    Tos, T; Alp, M Y; Eker, H K;

    2014-01-01

    Partial trisomy 9q34-qter and partial monosomy 8q24.3-qter are very rare chromosomal abnormalities. Characteristic features of partial trisomy 9q34-qter are hypotonia, developmental delay, mild intellectual disability, dolichocephaly, distinct facial phenotype, long and thin fingers, and cardiac......, brachycephaly, facial dysmorphism, hand and foot anomalies, bilateral hearing loss, cardiac defect and abnormal brain MRI findings. To the best of our knowledge, this is the first report of the combination of partial trisomy 9q and partial monosomy 8q....

  1. Neutron-induced fission cross sections of 233U and 243Am in the energy range 0.5 Mev En 20 MeV @ n_TOF

    CERN Document Server

    Belloni, F; Milazzo, P M; Calviani, M; Colonna, N; Mastinu, P; Abbondanno, U; Aerts, G; Álvarez, H; Álvarez-Velarde, F; Andriamonje, S; Andrzejewski, J; Assimakopoulos, P; Audouin, L; Badurek, G; Baumann, P; Becvár, F; Berthoumieux, E; Calviño, F; Cano-Ott, D; Capote, R; Carrapiço, C; Cennini, P; Chepel, V; Chiaveri, E; Cortes, G; Couture, A; Cox, J; Dahlfors, M; David, S; Dillmann, I; Domingo-Pardo, C; Dridi, W; Duran, I; Eleftheriadis, C; Embid-Segura, M; Ferrant, L; Ferrari, A; Ferreira-Marques, R; Fujii, K; Furman, W; Goncalves, I; González-Romero, E; Gramegna, F; Guerrero, C; Gunsing, F; Haas, B; Haight, R; Heil, M; Herrera-Martinez, A; Igashira, M; Jericha, E; Käppeler, F; Kadi, Y; Karadimos, D; Karamanis, D; Kerveno, M; Koehler, P; Kossionides, E; Krticka, M; Lampoudis, C; Leeb, H; Lindote, A; Lopes, I; Lozano, M; Lukic, S; Marganiec, J; Marrone, S; Martínez, T; Massimi, C; Mengoni, A; Moreau, C; Mosconi, M; Neves, F; Oberhummer, H; O'Brien, S; Pancin, J; Papachristodoulou, C; Papadopoulos, C; Paradela, C; Patronis, N; Pavlik, A; Pavlopoulos, P; Perrot, L; Pigni, M T; Plag, R; Plompen, A; Plukis, A; Poch, A; Praena, J; Pretel, C; Quesada, J; Rauscher, T; Reifarth, R; Rubbia, C; Rudolf, G; Rullhusen, P; Salgado, J; Santos, C; Sarchiapone, L; Savvidis, I; Stephan, C; Tagliente, G; Tain, J L; Tassan-Got, L; Tavora, L; Terlizzi, R; Vannini, G; Vazl, P; Ventura, A; Villamarin, D; Vincente, M C; Vlachoudis, V; Vlastou, R; Voss, F; Walter, S; Wiescher, M; Wisshak, K

    2011-01-01

    Neutron-induced fission cross-sections of actinides have been recently measured at the neutron time of flight facility n_TOF at CERN in the frame of a research project involving isotopes relevant for nuclear astrophysics and nuclear technologies. Fission fragments are detected by a gas counter with good discrimination between nuclear fission products and background events. Neutron-induced fission cross-sections of 233U and 243Am were determined relative to 235U. The present paper reports the results obtained at neutron energies between 0.5 and 20 MeV.

  2. Identification of ANKRD11 and ZNF778 as candidate genes for autism and variable cognitive impairment in the novel 16q24.3 microdeletion syndrome.

    Science.gov (United States)

    Willemsen, Marjolein H; Fernandez, Bridget A; Bacino, Carlos A; Gerkes, Erica; de Brouwer, Arjan P M; Pfundt, Rolph; Sikkema-Raddatz, Birgit; Scherer, Stephen W; Marshall, Christian R; Potocki, Lorraine; van Bokhoven, Hans; Kleefstra, Tjitske

    2010-04-01

    The clinical use of array comparative genomic hybridization in the evaluation of patients with multiple congenital anomalies and/or mental retardation has recently led to the discovery of a number of novel microdeletion and microduplication syndromes. We present four male patients with overlapping molecularly defined de novo microdeletions of 16q24.3. The clinical features observed in these patients include facial dysmorphisms comprising prominent forehead, large ears, smooth philtrum, pointed chin and wide mouth, variable cognitive impairment, autism spectrum disorder, structural anomalies of the brain, seizures and neonatal thrombocytopenia. Although deletions vary in size, the common region of overlap is only 90 kb and comprises two known genes, Ankyrin Repeat Domain 11 (ANKRD11) (MIM 611192) and Zinc Finger 778 (ZNF778), and is located approximately 10 kb distally to Cadherin 15 (CDH15) (MIM 114019). This region is not found as a copy number variation in controls. We propose that these patients represent a novel and distinctive microdeletion syndrome, characterized by autism spectrum disorder, variable cognitive impairment, facial dysmorphisms and brain abnormalities. We suggest that haploinsufficiency of ANKRD11 and/or ZNF778 contribute to this phenotype and speculate that further investigation of non-deletion patients who have features suggestive of this 16q24.3 microdeletion syndrome might uncover other mutations in one or both of these genes.

  3. Thermal neutron capture cross-section measurements of 243Am and 242Pu using the new mini-INCA α- and γ-spectroscopy station

    International Nuclear Information System (INIS)

    In the framework of the Mini-INCA project, dedicated to the study of Minor Actinide transmutation process in high neutron fluxes, an α- and γ-spectroscopy station has been developed and installed at the High Flux Reactor of the Laue-Langevin Institut. This set-up allows short irradiations as well as long irradiations in a high quasi-thermal neutron flux and post-irradiation spectroscopy analysis. It is well suited to measure precisely, in reference to 59Co cross-section, neutron capture cross-sections, for all the actinides, in the thermal energy region. The first measurements using this set-up were done on 243Am and 242Pu isotopes. Cross-section values, at En=0.025eV, were found to be (81.8+/-3.6)b for 243Am and (22.5+/-1.1)b for 242Pu. These values differ from evaluated data libraries by a factor of 9% and 17%, respectively, but are compatible with the most recent measurements, validating by the way the experimental apparatus

  4. The use of isotopic correlation technique for determination of sup(241)Am and sup(243)Am concentration in nuclear irradiated fuels

    International Nuclear Information System (INIS)

    In the last years the isotopic correlation technique is emerging as a powerful tool for the determination of concentration and isotopic composition of heavy nuclides in the nuclear fuel cycle. Accordingly, this technique has gained significant importance for the safeguard of the nuclear materials as well as for the accounting and build up of actinides elements in the irradiated nuclear fuels. In this work 42 isotopic correlations between the nuclides sup(241)Am and sup(243)Am and post irradiation isotopic data of 7 samples from fuel element BE-124 and 1 sample from fuel element BE-120 from the Obrigheim pressurized water nuclear power reactor, Federal Republic of Germany, were proposed. These isotopic correlations allowed to estimate the isotopic concentrations of sup(241)Am and sup(243)Am with an average deviation, relative to the experimental data obtained from isotopic dilution mass spectrometry technique, of 10%. These results are more precise than those found using the computer code ORIGEN 2 demonstrating the great potential of this technique for the determination of isotopic concentration and build up of those nuclides in irradiated nuclear fuels. The analytical and other experimental aspects of the post irradiation isotopic analysis of nuclear fuels are also discussed. (author)

  5. Synthesis, characterization and biological activity of new cyclization products of 3-(4-substituted benzylidene)-2-pyrido[1,2-]pyrimidine 2,4-(3)-diones

    Indian Academy of Sciences (India)

    Abha Bishnoi; Suruchi Singh; Anil K Tiwari; Krishna Srivastava; Ram Raghuvir; Chandrakant M Tripathi

    2013-03-01

    A method is presented for the synthesis of 4-(substituted phenyl)-3-(3-substituted phenyl)4-spiro[isoxazole-5,3'-pyrido[1,2-]pyrimidine]-2',4'-dione (3), 3-(4-substituted phenyl)-3-isoxazole[3, 4-]pyrido[1,2-]pyrimidin-4-(3a)-one (4) and 3-(4-substituted phenyl) 3,3a-dihydropyrazolo[3,4-]pyrido[1,2-]pyrimidin-4-(2)-one (5) which consists of the conversion of 2-pyrido[1,2-]pyrimidine-2,4(3)-dione (1) to chalcones (2) and their 1,3-dipolar cycloaddition with appropriate aldoximes to give spiro compounds and heterocyclization using amines to yield isoxazolines and pyrazolines. All the compounds were screened for their antimicrobial and antitubercular activity.

  6. Study of the Beta-delayed multiple particle break-up of the 2.43 MeV state in Be-9

    Science.gov (United States)

    Madurga Flores, Miguel; Borge, M. J. G.; Fynbo, H. O. U.; Jonson, B.; Nyman, G.; Prezado, Y.; Riisager, K.

    The aim of this work is to study the β -delayed multiparticle break-up of the 5/2- state in 9 Be at 2.43 MeV excitation energy. This process is relevant as it has been proposed recently that this level plays a role in the α(αn,γ)9 Be reaction. This state breaks-up in 2α+n, and sequential as well as direct ("democratic") decay have previously been considered. In our work energy and direction of the two emitted α particles has been measured, while those of the neutron have been reconstructed. The sequential decay is considered using the R-matrix formalism. For the democratic decay the hyper-spherical harmonics functions are used. The different decay processes are compared with the data using the Monte-Carlo method. Our preliminary results indicate that the data is better described when democratic decay is assumed.

  7. Fission Cross-section Measurements of (233)U, (245)Cm and (241,243)Am at CERN n_TOF Facility

    CERN Document Server

    Calviani, M; Andriamonje, S; Chiaveri, E; Vlachoudis, V; Colonna, N; Meaze, M H; Marrone, S; Tagliente, G; Terlizzi, R; Belloni, F; Abbondanno, U; Fujii, K; Milazzo, P M; Moreau, C; Aerts, G; Berthoumieux, E; Dridi, W; Gunsing, F; Pancin, J; Perrot, L; Plukis, A; Alvarez, H; Duran, I; Paradela, C; Alvarez-Velarde, F; Cano-Ott, D; Gonzalez-Romero, E; Guerrero, C; Martinez, T; Villamarin, D; Vicente, M C; Andrzejewski, J; Marganiec, J; Assimakopoulos, P; Karadimos, D; Karamanis, D; Papachristodoulou, C; Patronis, N; Audouin, L; David, S; Ferrant, L; Isaev, S; Stephan, C; Tassan-Got, L; Badurek, G; Jericha, E; Leeb, H; Oberhummer, H; Pigni, M T; Baumann, P; Kerveno, M; Lukic, S; Rudolf, G; Becvar, F; Krticka, M; Calvino, F; Capote, R; Carrillo De Albornoz, A; Marques, L; Salgado, J; Tavora, L; Vaz, P; Cennini, P; Dahlfors, M; Ferrari, A; Gramegna, F; Herrera-Martinez, A; Kadi, Y; Mastinu, P; Praena, J; Sarchiapone, L; Wendler, H; Chepel, V; Ferreira-Marques, R; Goncalves, I; Lindote, A; Lopes, I; Neves, F; Cortes, G; Poch, A; Pretel, C; Couture, A; Cox, J; O'brien, S; Wiescher, M; Dillman, I; Heil, M; Kappeler, F; Mosconi, M; Plag, R; Voss, F; Walter, S; Wisshak, K; Dolfini, R; Rubbia, C; Domingo-Pardo, C; Tain, J L; Eleftheriadis, C; Savvidis, I; Frais-Koelbl, H; Griesmayer, E; Furman, W; Konovalov, V; Goverdovski, A; Ketlerov, V; Haas, B; Haight, R; Reifarth, R; Igashira, M; Koehler, P; Kossionides, E; Lampoudis, C; Lozano, M; Quesada, J; Massimi, C; Vannini, G; Mengoni, A; Oshima, M; Papadopoulos, C; Vlastou, R; Pavlik, A; Pavlopoulos, P; Plompen, A; Rullhusen, P; Rauscher, T; Rosetti, M; Ventura, A

    2011-01-01

    Neutron-induced fission cross-sections of minor actinides have been measured using the n_TOF white neutron source at CERN, Geneva, as part of a large experimental program aiming at collecting new data relevant for nuclear astrophysics and for the design of advanced reactor systems. The measurements at n_TOF take advantage of the innovative features of the n_TOF facility, namely the wide energy range, high instantaneous neutron flux and good energy resolution. Final results on the fission cross-section of 233U, 245Cm and 243Am from thermal to 20 MeV are here reported, together with preliminary results for 241Am. The measurement have been performed with a dedicated Fast Ionization Chamber (FIC), a fission fragment detector with a very high efficiency, relative to the very well known cross-section of 235U, measured simultaneously with the same detector.

  8. Deletions in 14q24.1q24.3 are associated with congenital heart defects, brachydactyly, and mild intellectual disability.

    Science.gov (United States)

    Oehl-Jaschkowitz, Barbara; Vanakker, Olivier M; De Paepe, Anne; Menten, Björn; Martin, Thomas; Weber, Georg; Christmann, Alexander; Krier, Romain; Scheid, Simone; McNerlan, Susan E; McKee, Shane; Tzschach, Andreas

    2014-03-01

    Interstitial deletions of chromosome band 14q24.1q24.3 are apparently very rare. We report on three unrelated patients with overlapping de novo deletions of sizes 5.4, 2.8, and 2.3 Mb in this region. While some clinical problems such as intestinal malrotation, cryptorchidism, and ectopic kidney were only observed in single patients, all three patients had mild intellectual disability, congenital heart defects (truncus arteriosus, pulmonary atresia, atrial septal defect, and/or ventricular septal defect), brachydactyly, hypertelorism, broad nasal bridge, and thin upper lips. Likely haploinsufficiency of one or several of the 19 genes in the common deleted interval (ACTN1, DCAF5, EXD2, GALNTL1, ERH, SLC39A9, PLEKHD1, CCDC177, KIAA0247, LOC100289511, SRSF5, SLC10A1, SMOC1, SLC8A3, ADAM21P1, COX16, SYNJ2BP, SYNJ2BP-COX16, ADAM21) was responsible for these manifestations, but apart from SMOC1, mutations in which cause autosomal recessive Waardenburg anophthalmia syndrome, and ACTN1, mutations in which are associated with congenital macrothrombocytopenia, no disease associations have so far been reported for the other genes. Functional studies and a systematic search for mutations or chromosome aberrations in this region will elucidate the role of individual genes in the clinical manifestations and will provide insight into the underlying biological mechanisms. PMID:24357125

  9. X-ray outbursts of ESO 243-49 HLX-1: comparison with Galactic low-mass X-ray binary transients

    CERN Document Server

    Yan, Zhen; Soria, Roberto; Altamirano, Diego; Yu, Wenfei

    2015-01-01

    We studied the outburst properties of the hyper-luminous X-ray source ESO 243-49 HLX-1, using the full set of Swift monitoring observations. We quantified the increase in the waiting time, recurrence time and e-folding rise timescale along the outburst sequence, and the corresponding decrease in outburst duration, total radiated energy, and e-folding decay timescale, which confirms previous findings. HLX-1 spends less and less time in outburst and more and more time in quiescence, but its peak luminosity remains approximately constant. We compared the HLX-1 outburst properties with those of bright Galactic low-mass X-ray binary transients (LMXBTs). Our spectral analysis strengthens the similarity between state transitions in HLX-1 and those in Galactic LMXBTs. We also found that HLX-1 follows the nearly linear correlations between the hard-to-soft state transition luminosity and the peak luminosity, and between the rate of change of X-ray luminosity during the rise phase and the peak luminosity, which indicat...

  10. A novel autosomal recessive non-syndromic hearing impairment locus (DFNB47) maps to chromosome 2p25.1-p24.3.

    Science.gov (United States)

    Hassan, Muhammad Jawad; Santos, Regie Lyn P; Rafiq, Muhammad Arshad; Chahrour, Maria H; Pham, Thanh L; Wajid, Muhammad; Hijab, Nadine; Wambangco, Michael; Lee, Kwanghyuk; Ansar, Muhammad; Yan, Kai; Ahmad, Wasim; Leal, Suzanne M

    2006-01-01

    Hereditary hearing impairment (HI) displays extensive genetic heterogeneity. Autosomal recessive (AR) forms of prelingual HI account for approximately 75% of cases with a genetic etiology. A novel AR non-syndromic HI locus (DFNB47) was mapped to chromosome 2p25.1-p24.3, in two distantly related Pakistani kindreds. Genome scan and fine mapping were carried out using microsatellite markers. Multipoint linkage analysis resulted in a maximum LOD score of 4.7 at markers D2S1400 and D2S262. The three-unit support interval was bounded by D2S330 and D2S131. The region of homozygosity was found within the three-unit support interval and flanked by markers D2S2952 and D2S131, which corresponds to 13.2 cM according to the Rutgers combined linkage-physical map. This region contains 5.3 Mb according to the sequence-based physical map. Three candidate genes, KCNF1, ID2 and ATP6V1C2 were sequenced, and were found to be negative for functional sequence variants. PMID:16261342

  11. Low-Redshift Damped Lyman Alpha Galaxies Towards the Quasars B2 0827+243, PKS 0952+179, PKS 1127-145, and PKS 1629+120

    CERN Document Server

    Rao, S M; Turnshek, D A; Lane, W M; Monier, E M; Bergeron, J; Rao, Sandhya M.; Nestor, Daniel B.; Turnshek, David A.; Lane, Wendy M.; Monier, Eric M.; Bergeron, Jacqueline

    2003-01-01

    We present optical and near-infrared ground-based imaging results on four low-redshift damped Lyman alpha (DLA) galaxies. The corresponding DLA systems were discovered in our Hubble Space Telescope spectroscopic surveys for DLAs in known strong MgII absorption-line systems towards the quasars B2 0827+243 (z{DLA}=0.525), PKS 0952+179 (z{DLA}=0.239), PKS 1127-145 (z_{DLA}=0.313), and PKS 1629+120 (z{DLA}=0.532). The DLA galaxies span a mixture of morphological types from patchy, irregular, and low-surface-brightness to spiral galaxies. The luminosities range from 0.02L_K^* to 1.2L_K^*. We also discovered several extremely red objects (EROs) in two of these fields and discuss the possibility that they are associated with the DLA galaxies. These observations add to the small but growing list of DLA galaxies at low redshift. At the present time, 14 DLA galaxies in the redshift range $0.05 \\lesssim z \\lesssim 1$ have been studied. The distributions of DLA galaxy properties for these 14 cases are discussed and some ...

  12. Comment on ”John’s stone: A possible fragment of the 1908 Tunguska meteorite” (Anfinogenov et al., 2014, Icarus 243, 139-147)

    DEFF Research Database (Denmark)

    Haack, Henning; Greenwood, Richard; Busemann, Henner

    2016-01-01

    Anfinogenov et al. (Anfinogenov et al. [2014]. Icarus 243, 139–147) argue that a highly silicified gravelite sandstone referred to as “John’s stone” could be a fragment of the long-sought-after impactor from the 1908 Tunguska event. We have analyzed the oxygen isotopic composition of two distinct...... samples of John’s stone both kindly provided by Dr Yana Anfingenova. Both samples had very similar isotopic compositions, such that the average of the two was as follows: δ17O = 6.67 ± 0.15‰; δ18O = 12.78 ± 0.28‰; Δ17O = −0.01 ± 0.01 (errors 1SD). This value is well within the range for samples...... of terrestrial quartz-bearing sedimentary and metamorphic rocks. John’s stone has an oxygen isotope composition and mineralogy that is unlike any known group of meteorites. If John’s stone is extraterrestrial this would imply that it represents a previously unknown type of meteorite, as suggested by Anfinogenov...

  13. Susceptibility to insulin-dependent diabetes mellitus maps to a locus (IDDM11) on human chromosome 14q24.3-q31

    Energy Technology Data Exchange (ETDEWEB)

    Field, L.L.; Tobias, R. [Univ. of Calgary, Alberta (Canada); Thomson, G. [Univ. of California, Berkeley, CA (United States)] [and others

    1996-04-01

    To locate genes predisposing to insulin-dependent diabetes mellitus (IDDM), an autoimmune disorder resulting from destruction of the insulin-producing pancreatic cells, we are testing linkage of IDDM susceptibility to polymorphic markers across the genome using families with two or more IDDM children. A new susceptibility locus (IDDM11) has been localized to chromosome 14q24.3-q31 by detection of significant linkage to microsatellite D14S67, using both maximum likelihood methods D14S67, using both maximum likelihood methods (LOD{sub max} = 4.0 at {theta} = 0.20) and affected sib pair (ASP) methods (P = 1 x 10{sup -5}). This represents the strongest reported evidence for linkage to any IDDM locus outside the HLA region. The subset of families in which affected children did not show increased sharing of HLA genes (HLA sharing {le}50%) provided most of the support for D14S67 linkage (LOD{sub max}4.6 at {theta} = 0.12;ASP P < 5 x 10{sup -6}). There was significant linkage heterogeneity between the HLA-defined subsets of families (P = 0.009), suggesting that IDDM11 may be an important susceptibility locus in families lacking strong HLA region predisposition. 52 refs., 2 figs., 3 tabs.

  14. Expression and purification of a novel ZNF191 zinc finger protein——ZNF191 protein and its truncated zinc finger region ZNF191 (243—368)

    Institute of Scientific and Technical Information of China (English)

    刘玉奇; 余龙; 余文浩; 施少林; 孙炳耘; 吴国俊; 黄仲贤

    1999-01-01

    ZNF191 is a new zine finger gene whieh has a 1107 bp open reading frame (ORF) and eneodes a 368 amino avid protein including a putative DNA-binding domain of four Cys2 His2 zine finger motifs at its C-terminal region. The ZNF191 cDNA is loeated in the chromosome 18q12.1 region where it is known that a variety of hereditary diseases are related to. Probably, this protein has potential function of stimulating the gene franscription. In order to examine the function and structure of ZNF191 protein, the ORF of ZNF191 and its zine finger region ZNF191(243--368) genes were inserted into PTSA-18 expression vector by PCR amplification, then the constructed genes were expressed in the PTSA-18/B121 (DE3) system. The two proteins were purified by DEAE-52, CM-23 and Heparin-Sepharose 4B columns. The pooled proteins showed a single band as assayed by Coomasie Brillian Blue Staining of an SDS/polyacryamide gel.

  15. Discovery of very high energy gamma-ray emission from the BL Lac object PKS 0301-243 with H.E.S.S

    CERN Document Server

    Abramowski, A; Aharonian, F; Ait, F; Akhperjanian, A G; Angüner, E; Anton, G; Balenderan, S; Balzer, A; Barnacka, A; Becherini, Y; Becker, J; Bernlöhr, K; Birsin, E; Bissaldi, E; Biteau, J; Böttcher, M; Boisson, C; Bolmont, J; Bordas, P; Brucker, J; Brun, F; Brun, P; Bulik, T; Carrigan, S; Casanova, S; Cerruti, M; Chadwick, P M; Chalme-Calvet, R; Chaves, R C G; Cheesebrough, A; Chrétien, M; Colafrancesco, S; Cologna, G; Conrad, J; Couturier, C; Dalton, M; Daniel, M K; Davids, I D; Degrange, B; Deil, C; deWilt, P; Dickinson, H J; Djannati-Ataï, A; Domainko, W; Drury, L O'C; Dubus, G; Dutson, K; Dyks, J; Dyrda, M; Edwards, T; Egberts, K; Eger, P; Espigat, P; Farnier, C; Fegan, S; Feinstein, F; Fernandes, M V; Fernandez, D; Fiasson, A; Fontaine, G; Förster, A; Füssling, M; Gajdus, M; Gallant, Y A; Garrigoux, T; Giebels, B; Glicenstein, J F; Grondin, M -H; Grudzìnska, M; Häffner, S; Hague, J D; Hahn, J; Harris, J; Heinzelmann, G; Henri, G; Hermann, G; Hervet, O; Hillert, A; Hinton, J A; Hofmann, W; Hofverberg, P; Holler, M; Horns, D; Jacholkowska, A; Jahn, C; Jamrozy, M; Janiak, M; Jankowsky, F; Jung, I; Kastendieck, M A; Katarzyński, K; Katz, U; Kaufmann, S; Khélifi, B; Kieffer, M; Klepser, S; Klochkov, D; Kluźniak, W; Kneiske, T; Kolitzus, D; Komin, Nu; Kosack, K; Krakau, S; Krayzel, F; Krüger, P P; Laffon, H; Lamanna, G; Lefaucheur, J; Lemoine-Goumard, M; Lenain, J -P; Lennarz, D; Lohse, T; Lopatin, A; Lu, C -C; Marandon, V; Marcowith, A; Marx, R; Maurin, G; Maxted, N; Mayer, M; McComb, T J L; Medina, M C; Méhault, J; Menzler, U; Meyer, M; Moderski, R; Mohamed, M; Moulin, E; Murach, T; Naumann, C L; de Naurois, M; Nedbal, D; Niemiec, J; Nolan, S J; Oakes, L; Ohm, S; Wilhelmi, E de Oña; Opitz, B; Ostrowski, M; Oya, I; Panter, M; Parsons, R D; Arribas, M Paz; Pekeur, N W; Pelletier, G; Perez, J; Petrucci, P -O; Peyaud, B; Pita, S; Poon, H; Pühlhofer, G; Punch, M; Quirrenbach, A; Raab, S; Raue, M; Reimer, A; Reimer, O; Renaud, M; Reyes, R de los; Rieger, F; Rob, L; Rosier-Lees, S; Rowell, G; Rudak, B; Rulten, C B; Sahakian, V; Sanchez, D A; Santangelo, A; Schlickeiser, R; Schüssler, F; Schulz, A; Schwanke, U; Schwarzburg, S; Schwemmer, S; Sol, H; Spengler, G; Spies, F; Stawarz, L; Steenkamp, R; Stegmann, C; Stinzing, F; Stycz, K; Sushch, I; Szostek, A; Tavernet, J -P; Terrier, R; Tluczykont, M; Trichard, C; Valerius, K; van Eldik, C; Vasileiadis, G; Venter, C; Viana, A; Vincent, P; Völk, H J; Volpe, F; Vorster, M; Wagner, S J; Wagner, P; Ward, M; Weidinger, M; Weitzel, Q; White, R; Wierzcholska, A; Willmann, P; Wörnlein, A; Wouters, D; Zacharias, M; Zajczyk, A; Zdziarski, A A; Zech, A; Zechlin, H -S

    2013-01-01

    The active galactic nucleus PKS 0301-243 (z=0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV 100 GeV) by the High Energy Stereoscopic System (H.E.S.S.) from observations between September 2009 and December 2011 for a total live time of 34.9 hours. Gamma rays above 200 GeV are detected at a significance of 9.4{\\sigma}. A hint of variability at the 2.5{\\sigma} level is found. An integral flux I(E > 200 GeV) = (3.3 +/- 1.1_stat +/- 0.7_syst)e-12 ph cm^-2s^-1 and a photon index {\\Gamma} = 4.6 +/- 0.7_stat +/- 0.2_syst are measured. Multi-wavelength light curves in HE, X-ray and optical bands show strong variability, and a minimal variability timescale of eight days is estimated from the optical light curve. A single-zone leptonic synchrotron self-Compton scenario satisfactorily reproduces the multi-wavelength data. In this model, the emitting region is out of equipartition and the jet is particle dominated. Because of its high redshift compared to other sources obse...

  16. Discovery of a Neuroprotective Chemical, (S)-N-(3-(3,6-Dibromo-9H-carbazol-9-yl)-2-fluoropropyl)-6-methoxypyridin-2-amine [(−)-P7C3-S243], with Improved Druglike Properties

    OpenAIRE

    Naidoo, Jacinth; De Jesus-Cortes, Hector; Huntington, Paula; Estill, Sandi; Morlock, Lorraine K.; Starwalt, Ruth; Mangano, Thomas J.; Williams, Noelle S.; Pieper, Andrew A.; Ready, Joseph M.

    2014-01-01

    (−)-P7C3-S243 is a neuroprotective aminopropyl carbazole with improved druglike properties compared with previously reported compounds in the P7C3 class. It protects developing neurons in a mouse model of hippocampal neurogenesis and protects mature neurons within the substantia nigra in a mouse model of Parkinson’s disease. A short, enantioselective synthesis provides the neuroprotective agent in optically pure form. It is nontoxic, orally bioavailable, metabolically stable, and able to cros...

  17. Comment on "John's stone: A possible fragment of the 1908 Tunguska meteorite" (Anfinogenov et al., 2014, Icarus 243, 139-147)

    Science.gov (United States)

    Haack, Henning; Greenwood, Richard C.; Busemann, Henner

    2016-02-01

    Anfinogenov et al. (Anfinogenov et al. [2014]. Icarus 243, 139-147) argue that a highly silicified gravelite sandstone referred to as "John's stone" could be a fragment of the long-sought-after impactor from the 1908 Tunguska event. We have analyzed the oxygen isotopic composition of two distinct samples of John's stone both kindly provided by Dr Yana Anfingenova. Both samples had very similar isotopic compositions, such that the average of the two was as follows: δ17O = 6.67 ± 0.15‰; δ18O = 12.78 ± 0.28‰; Δ17O = -0.01 ± 0.01 (errors 1SD). This value is well within the range for samples of terrestrial quartz-bearing sedimentary and metamorphic rocks. John's stone has an oxygen isotope composition and mineralogy that is unlike any known group of meteorites. If John's stone is extraterrestrial this would imply that it represents a previously unknown type of meteorite, as suggested by Anfinogenov et al. However, since sandstones can only form on a parent body with liquid water and by inference, also an atmosphere, we argue that there are only two possible parent bodies in the Solar System: the Earth and Mars. Mars can be ruled out for several reasons, including the oxygen isotopic and noble gas composition of John's stone, which is clearly distinct from martian meteorites. Consistent with the O study, the noble gases do not provide any evidence for an extraterrestrial origin of the samples. The lack of any cosmogenic noble gases (particularly striking in 3He, 21Ne, 38Ar) is consistent with a terrestrial origin or an extraterrestrial origin under large shielding. Based on the combined evidence obtained in this study we infer that John's stone is a terrestrial rock unrelated to the Tunguska impactor.

  18. A DETAILED GRAVITATIONAL LENS MODEL BASED ON SUBMILLIMETER ARRAY AND KECK ADAPTIVE OPTICS IMAGING OF A HERSCHEL-ATLAS SUBMILLIMETER GALAXY AT z = 4.243 {sup ,} {sup ,}

    Energy Technology Data Exchange (ETDEWEB)

    Bussmann, R. S.; Gurwell, M. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Fu Hai; Cooray, A. [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Smith, D. J. B.; Bonfield, D.; Dunne, L. [Centre for Astrophysics, Science and Technology Research Institute, University of Hertfordshire, Hatfield, Herts AL10 9AB (United Kingdom); Dye, S.; Eales, S. [School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD (United Kingdom); Auld, R. [Cardiff University, School of Physics and Astronomy, Queens Buildings, The Parade, Cardiff CF24 3AA (United Kingdom); Baes, M.; Fritz, J. [Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent (Belgium); Baker, A. J. [Department of Physics and Astronomy, Rutgers, the State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854-8019 (United States); Cava, A. [Departamento de Astrofisica, Facultad de CC. Fisicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain); Clements, D. L.; Dariush, A. [Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ (United Kingdom); Coppin, K. [Department of Physics, McGill University, Ernest Rutherford Building, 3600 Rue University, Montreal, Quebec, H3A 2T8 (Canada); Dannerbauer, H. [Universitaet Wien, Institut fuer Astronomie, Tuerkenschanzstrasse 17, 1180 Wien, Oesterreich (Austria); De Zotti, G. [Universita di Padova, Dipto di Astronomia, Vicolo dell' Osservatorio 2, IT 35122, Padova (Italy); Hopwood, R., E-mail: rbussmann@cfa.harvard.edu [Department of Physics and Astronomy, Open University, Walton Hall, Milton Keynes, MK7 6AA (United Kingdom); and others

    2012-09-10

    We present high-spatial resolution imaging obtained with the Submillimeter Array (SMA) at 880 {mu}m and the Keck adaptive optics (AO) system at the K{sub S}-band of a gravitationally lensed submillimeter galaxy (SMG) at z = 4.243 discovered in the Herschel Astrophysical Terahertz Large Area Survey. The SMA data (angular resolution Almost-Equal-To 0.''6) resolve the dust emission into multiple lensed images, while the Keck AO K{sub S}-band data (angular resolution Almost-Equal-To 0.''1) resolve the lens into a pair of galaxies separated by 0.''3. We present an optical spectrum of the foreground lens obtained with the Gemini-South telescope that provides a lens redshift of z{sub lens} = 0.595 {+-} 0.005. We develop and apply a new lens modeling technique in the visibility plane that shows that the SMG is magnified by a factor of {mu} = 4.1 {+-} 0.2 and has an intrinsic infrared (IR) luminosity of L{sub IR} = (2.1 {+-} 0.2) Multiplication-Sign 10{sup 13} L{sub Sun }. We measure a half-light radius of the background source of r{sub s} = 4.4 {+-} 0.5 kpc which implies an IR luminosity surface density of {Sigma}{sub IR} (3.4 {+-} 0.9) Multiplication-Sign 10{sup 11} L{sub Sun} kpc{sup -2}, a value that is typical of z > 2 SMGs but significantly lower than IR luminous galaxies at z {approx} 0. The two lens galaxies are compact (r{sub lens} Almost-Equal-To 0.9 kpc) early-types with Einstein radii of {theta}{sub E1} 0.57 {+-} 0.01 and {theta}{sub E2} = 0.40 {+-} 0.01 that imply masses of M{sub lens1} = (7.4 {+-} 0.5) Multiplication-Sign 10{sup 10} M{sub Sun} and M{sub lens2} = (3.7 {+-} 0.3) Multiplication-Sign 10{sup 10} M{sub Sun }. The two lensing galaxies are likely about to undergo a dissipationless merger, and the mass and size of the resultant system should be similar to other early-type galaxies at z {approx} 0.6. This work highlights the importance of high spatial resolution imaging in developing models of strongly lensed galaxies

  19. 232Th、233U、238Pu、240Pu、242Pu、241Am、242Cm、243Cm和244Cm的裂变释放热能研究%Thermal Energy Released in Fission of 232 Th,233 U,238 Pu, 240 Pu,242 Pu,241 Am,242 Cm,243 Cm and 244 Cm

    Institute of Scientific and Technical Information of China (English)

    赵艳飞; 马续波; 陈义学

    2013-01-01

    In the nuclear reactor design ,the precise calculation of thermal fission energy is of great significance .In the pressurized water reactor ,high energy neutron-induced fission rarely occurs ,the isotopes including 233 U ,241 Am and 243 Cm are mostly induced by thermal neutrons ,while the other isotopes such as 232Th ,238Pu ,240Pu ,242Pu ,242Cm and 244 Cm are by fast neutron . In order to carry out this work , the nuclear data extracted from the latest evaluated nuclear data file (ENDF/B-Ⅶ ) were adopted ,and the energy-conservation law for the calculation of total fission energy were used , meanw hile ,with the consideration of capture energy and the correction of βand γ ,the thermal fission energy of nine isotopes was obtained .Compared with the data excerpted from IAEA issued WIMS-D database ,the results are reasonable .The thermal fission energy and its uncertainties of the nine isotopes are :(193.939 ± 0.176) MeV for 232 Th , (200.063 ± 0.084) MeV for 233 U ,(208.786 ± 1.133 ) MeV for 238 Pu ,(211.266 ± 0.220 ) MeV for 240 Pu ,(213.862 ± 0.299 ) MeV for 242 Pu ,(215.077 ± 0.210 ) MeV for 241 Am ,(218.821 ± 0.159) MeV for 242Cm ,(218.525 ± 0.388) MeV for 243Cm ,and (220.067 ± 0.131) MeV for 244 Cm ,respectively .%在核反应堆设计中,对每次裂变释放热能进行精确计算具有重要意义。在压水堆内,高能中子诱发核裂变份额很小,233 U、241 Am、243 Cm主要由热中子诱发裂变,232 T h、238 Pu、240 Pu、242 Pu、242 Cm、244 Cm主要由快中子诱发裂变。本文采用最新的核评价数据库 ENDF/B-Ⅶ,利用质量守恒法计算裂变释放总能,同时研究了中微子带走的能量,中子俘获能及β、γ修正项,最终给出了9种核素裂变释放热能。与IAEA颁布的WIMS-D格式数据库中的裂变释放热能数据的对比表明,本文所用方法计算结果合理。9种核素每次裂变释放热能分别为:232 Th ,(193.939±0.176) MeV ;233 U ,(200.063

  20. The real part of the forward elastic scattering amplitude for pp and /ovr/p//p at √s = 24.3 GeV from experiment UA6

    International Nuclear Information System (INIS)

    Preliminary results for the ratio of the real part to the imaginary part of the forward elastic scattering amplitude are presented for both pp and /ovr/p/p scattering at √s = 24.3 GeVc. The elastic differential cross section was measured in the four-momentum transfer range 0.001 2 using a position sensitive silicon detector to detect the recoil proton. The values found are /rho/(pp) = 0.014 +- 0.007 +- 0.007 and /rho/(/ovr/p//p) = 0.045 +- 0.007 +- 0.007

  1. Impaction grafting in the femur in cementless modular revision total hip arthroplasty: a descriptive outcome analysis of 243 cases with the MRP-TITAN revision implant

    Directory of Open Access Journals (Sweden)

    Wimmer Matthias D

    2013-01-01

    Full Text Available Abstract Background We present a descriptive and retrospective analysis of revision total hip arthroplasties (THA using the MRP-TITAN stem (Peter Brehm, Weisendorf, GER with distal diaphyseal fixation and metaphyseal defect augmentation. Our hypothesis was that the metaphyseal defect augmentation (Impaction Bone Grafting improves the stem survival. Methods We retrospectively analyzed the aggregated and anonymized data of 243 femoral stem revisions. 68 patients with 70 implants (28.8% received an allograft augmentation for metaphyseal defects; 165 patients with 173 implants (71.2% did not, and served as controls. The mean follow-up was 4.4 ± 1.8 years (range, 2.1–9.6 years. There were no significant differences (p > 0.05 between the study and control group regarding age, body mass index (BMI, femoral defects (types I-III as described by Paprosky, and preoperative Harris Hip Score (HHS. Postoperative clinical function was evaluated using the HHS. Postoperative radiologic examination evaluated implant stability, axial implant migration, signs of implant loosening, periprosthetic radiolucencies, as well as bone regeneration and resorption. Results There were comparable rates of intraoperative and postoperative complications in the study and control groups (p > 0.05. Clinical function, expressed as the increase in the postoperative HHS over the preoperative score, showed significantly greater improvement in the group with Impaction Bone Grafting (35.6 ± 14.3 vs. 30.8 ± 15.8; p ≤ 0.05. The study group showed better outcome especially for larger defects (types II C and III as described by Paprosky and stem diameters ≥ 17 mm. The two groups did not show significant differences in the rate of aseptic loosening (1.4% vs. 2.9% and the rate of revisions (8.6% vs. 11%. The Kaplan-Meier survival for the MRP-TITAN stem in both groups together was 93.8% after 8.8 years. [Study group 95.7% after 8.54 years ; control group 93

  2. Soja transgênica BRS 243 RR: determinação de macronutrientes e das isoflavonas daidzeína e genisteína por Cromatografia Líquida de Alta Eficiência (CLAE Transgenic soybean BRS 243 RR: determination of macronutrients and isoflavones daidzein and genistein by High Performance Liquid Chromatography (HPLC

    Directory of Open Access Journals (Sweden)

    Marcela Roquim Alezandro

    2008-09-01

    Full Text Available Este trabalho teve por objetivo determinar a composição centesimal e o conteúdo de Daidzeína (D e Genisteína (G da cultivar BRS 243 RR por CLAE. O preparo da amostra para cromatografia envolveu a remoção da gordura com hexano . Os analitos foram extraídos com etanol 70% acrescido de 0,1% de ácido acético. As condições cromatográficas otimizadas foram: coluna C18, fase móvel metanol: ácido acético 5% (1:1 v/v, vazão 0,5 mL/minuto, temperatura da coluna 30 °C, volume de injeção 40 µL e leitura em 254 nm. Os parâmetros de validação avaliados foram: linearidade y = 11242 x -37433, r = 0,9976 (D e y = 18510 x -66761, r = 0,9980 (G; coeficientes de variação dos estudos de precisão intradia CV = 5,3% (D, CV = 6,7% (G e interdias CV = 8,7% (D, CV = 9,7% (G; limite de quantificação 10 µg.g-1; limite de detecção 5 µg.g-1 e recuperação 95,7%. Portanto, o método desenvolvido foi adequado para a determinação de daidzeína e genisteína em soja. Os níveis de carboidratos (31,4%, proteínas (35,9%, lipídios (20,9%, umidade (6,9%, cinzas (4,9%, daidzeína (44,1 µg.g-1 e genisteína (37,4 µg.g-1 determinados na soja transgênica foram similares aos de outros estudos com soja convencional.The objective of this work was to evaluate the proximate composition, as well as Daidzein (D and Genistein (G contents by HPLC, of BRS 243 RR soybean. Sample preparation for the chromatographic analysis involved the use of hexane to remove lipids. Isoflavones were extracted with 70% ethanol containing 0.1% acetic acid. The optimized chromatographic conditions were: C18 column, mobile phase methanol:5% acetic acid (1:1 v/v, flow rate 0.5 mL/minute, column temperature 30 °C, UV absorbance at 254 nm and volume injected 40 µL. The validation parameters were: linearity of daidzein (y = 11242 x -37433, r = 0.9976 and genistein (y = 18510 x -66761, r = 0.9980; variation coefficients obtained in intra-day precision assays [CV = 5.3% (D, CV = 6

  3. Measurement of the Neutron Capture Cross Sections of $^{233}$U, $^{237}$Np, $^{240,242}$Pu, $^{241,243}$Am and $^{245}$Cm with a Total Absorption Calorimeter at n_TOF

    CERN Multimedia

    Beer, H; Wiescher, M; Cox, J; Rapp, W; Embid, M; Dababneh, S

    2002-01-01

    Accurate and reliable neutron capture cross section data for actinides are necessary for the poper design, safety regulation and precise performance assessment of transmutation devices such as Fast Critical Reactors or Accelerator Driven Systems (ADS). The goal of this proposal is the measurement of the neutron capture cross sections of $^{233}$U, $^{237}$Np, $^{240,242}$Pu, $^{241,243}$Am and $^{245}$Cm at n_TOF with an accuracy of 5~\\%. $^{233}$U plays an essential role in the Th fuel cycle, which has been proposed as a safer and cleaner alternative to the U fuel cycle. The capture cross sections of $^{237}$Np,$^{240,242}$Pu, $^{241,243}$Am and $^{245}$Cm play a key role in the design and optimization of a strategy for the Nuclear Waste Transmutation. A high accuracy can be achieved at n_TOF in such measurements due to a combination of features unique in the world: high instantaneous neutron fluence and excellent energy resolution of the facility, innovative Data Acquisition System based on flash ADCs and t...

  4. 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

  5. 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.

  6. 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.)

  7. Thermomechanical behavior and microstructural evolution of a Ni(Pd)-rich Ni{sub 24.3}Ti{sub 49.7}Pd{sub 26} high temperature shape memory alloy

    Energy Technology Data Exchange (ETDEWEB)

    Benafan, O., E-mail: othmane.benafan@nasa.gov [NASA Glenn Research Center, Structures and Materials Division, Cleveland, OH 44135 (United States); Garg, A. [University of Toledo, Toledo, OH 43606 (United States); NASA Glenn Research Center, Structures and Materials Division, Cleveland, OH 44135 (United States); Noebe, R.D.; Bigelow, G.S.; Padula, S.A. [NASA Glenn Research Center, Structures and Materials Division, Cleveland, OH 44135 (United States); Gaydosh, D.J. [Ohio Aerospace Institute, Cleveland, OH 44142 (United States); NASA Glenn Research Center, Structures and Materials Division, Cleveland, OH 44135 (United States); Vaidyanathan, R. [Advanced Materials Processing and Analysis Center, Materials Science and Engineering Department, University of Central Florida, Orlando, FL 32816 (United States); Clausen, B.; Vogel, S.C. [Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    2015-09-15

    Highlights: • A Ni(Pd)-rich Ni{sub 24.3}Ti{sub 49.7}Pd{sub 26} high temperature shape memory alloy was characterized. • Aging resulted in fine dispersion of nano-sized precipitates. • Thermomechanical cycling resulted in dimensional instabilities due to lattice defects. • A two-way shape memory effect strain of 2% strain was obtained after cycling. - Abstract: The effect of thermomechanical cycling on a slightly Ni(Pd)-rich Ni{sub 24.3}Ti{sub 49.7}Pd{sub 26} (near stochiometric Ni–Ti basis with Pd replacing Ni) high temperature shape memory alloy was investigated. Aged tensile specimens (400 °C/24 h/furnace cooled) were subjected to constant-stress thermal cycling in conjunction with microstructural assessment via in situ neutron diffraction and transmission electron microscopy (TEM), before and after testing. It was shown that in spite of the slightly Ni(Pd)-rich composition and heat treatment used to precipitation harden the alloy, the material exhibited dimensional instabilities with residual strain accumulation reaching 1.5% over 10 thermomechanical cycles. This was attributed to insufficient strengthening of the material (insufficient volume fraction of precipitate phase) to prevent plasticity from occurring concomitant with the martensitic transformation. In situ neutron diffraction revealed the presence of retained martensite while cycling under 300 MPa stress, which was also confirmed by transmission electron microscopy of post-cycled samples. Neutron diffraction analysis of the post-thermally-cycled samples under no-load revealed residual lattice strains in the martensite and austenite phases, remnant texture in the martensite phase, and peak broadening of the austenite phase. Texture developed in the martensite phase was composed mainly of those martensitic tensile variants observed during thermomechanical cycling. Presence of a high density of dislocations, deformation twins, and retained martensite was revealed in the austenite state via in

  8. Identification of ZCCHC8 as fusion partner of ROS1 in a case of congenital glioblastoma multiforme with a t(6;12)(q21;q24.3).

    Science.gov (United States)

    Coccé, Mariela C; Mardin, Balca R; Bens, Susanne; Stütz, Adrian M; Lubieniecki, Fabiana; Vater, Inga; Korbel, Jan O; Siebert, Reiner; Alonso, Cristina N; Gallego, Marta S

    2016-09-01

    Congenital gliobastoma multiforme (GBM) is rare and little is known about the molecular defects underlying the initiation and progression of this tumor type. We present a case of congenital GBM analyzed by conventional cytogenetics, fluorescence in situ hybridization, array comparative genomic hybridization and next generation sequencing. On cytogenetic analysis we detected a reciprocal translocation t(6;12)(q21;q24.3). By sequencing, the translocation was shown to form a fusion between the 5' region of ZCCHC8 and the 3' region of ROS1. RT-PCR analyses confirmed the existence of an in-frame fusion transcript with ZCCHC8 exons 1-3 joined to ROS1 exons 36-43. In addition to the ZCCHC8-ROS1 fusion, we detected a deletion in the short arm of chromosome 9, including homozygous loss of the CDKN2A/2B locus in 9p21.3 and heterozygous deletion of the HAUS6 gene in 9p22.1. The latter encodes a protein involved in faithful chromosome segregation by regulating microtubule nucleation and its deletion might be associated with the marked subclonal changes of ploidy observed in the tumor. This report adds the ZCCHC8-ROS1 fusion as oncogenic driver in GBM and supports the role of ROS1 activation in the pathogenesis of a subset of GBM. © 2016 Wiley Periodicals, Inc. PMID:27121553

  9. The gene for spinal cerebellar ataxia 3 (SCA3) is located in a region of {approximately} 3 cM on chromosome 14q24.3-q32.2

    Energy Technology Data Exchange (ETDEWEB)

    Stevanin, G.; Cancel, G.; Duerr, A.; Dubourg, O.; Agid, Y.; Brice, A. [Hopital de la Salpetriere, Paris (France); Chneiweiss, H.; Weissenbach, J.; Cann, H.M.

    1995-01-01

    SCA3, the gene for spinal cerebellar ataxia 3, was recently mapped to a 15-cM interval between D14S67 and D14S81 on chromosome 14q, by linkage analysis in two families of French ancestry. The SCA3 candidate region has now been refined by linkage analysis with four new microsatellite markers (D14S256, D14S291, D14S280, and AFM343vf1) in the same two families, in which 19 additional individuals were genotyped, and in a third French family. Combined two-point linkage analyses show that the new markers, D14S280 and AFM343vf1, are tightly linked to the SCA3 locus, with maximal lod scores, at recombination fraction, ({theta}) = .00, of 7.05 and 13.70, respectively. Combined multipoint and recombinant haplotype analyses localize the SCA3 locus to a 3-cM interval flanked by D14S291 and D14S81. The same allele for D14S280 segregates with the disease locus in the three kindreds. This allele is frequent in the French population, however, and linkage disequilibrium is not clearly established. The SCA3 locus remains within the 29-cM region on 14q24.3-q32.2 containing the gene for the Machado-Joseph disease, which is clinically related to the phenotype determined by SCA3, but it cannot yet be concluded that both diseases result from alterations of the same gene. 30 refs., 3 figs., 3 tabs.

  10. 15 CFR 24.3 - Definitions.

    Science.gov (United States)

    2010-01-01

    ... Commerce and Foreign Trade Office of the Secretary of Commerce UNIFORM ADMINISTRATIVE REQUIREMENTS FOR... price of the property including the cost of modifications, attachments, accessories, or auxiliary... under the United States Housing Act of 1937) school district, special district, intrastate...

  11. 14 CFR 243.3 - Definitions.

    Science.gov (United States)

    2010-01-01

    ... intimidation, and with wrongful intent. Aviation disaster means: (1) An occurrence associated with the... an aviation disaster. The contact need not have any particular relationship to a passenger. Covered..., the District of Columbia, and the territories and possessions of the United States, including...

  12. Galileo photometry of asteroid 243 Ida

    Science.gov (United States)

    Helfenstein, P.; Veverka, J.; Thomas, P.C.; Simonelli, D.P.; Klaasen, K.; Johnson, T.V.; Fanale, F.; Granahan, J.; McEwen, A.S.; Belton, M.; Chapman, C.

    1996-01-01

    Galileo imaging observations over phase angles 19.5?? to 109.8?? are combined with near-opposition Earth-based data to derive the photometric properties of Ida. To first order these properties are uniform over the surface and well modeled at ?? = 0.55 ??m by Hapke parameters ????0 = 0.22, h = 0.020, B0 = 1.5, g = -0.33, and ?? = 18?? with corresponding geometric albedo p = 0.21??0.030.01 and Bond albedo AB = 0.081??0.0170.008. Ida's photometric properties are more similar to those of "average S-asteroids" (P. Helfenstein and J. Veverka 1989, Asteroids II, Univ. of Arizona Press, Tucson) than are those of 951 Gaspra. Two primary color units are identified on Ida: Terrain A exhibits a spectrum with relatively shallower 1-??m absorption and a relatively steeper red spectral slope than average Ida, while Terrain B has a deeper 1-??m absorption and a less steep red slope. The average photometric properties of Ida and Terrain A are similar while those of Terrain B differ mostly in having a slightly higher value of ????0 (0.22 versus 0.21), suggesting that Terrain B consists of slightly brighter, more transparent regolith particles. Galileo observations of Ida's satellite Dactyl over phase angles 19.5?? to 47.6?? suggest photometric characteristics similar to those of Ida, the major difference being Dactyl's slightly lower albedo (0.20 compared to 0.21). ?? 1990 Academic Press, Inc.

  13. 48 CFR 52.243-4 - Changes.

    Science.gov (United States)

    2010-10-01

    ... within the general scope of the contract, including changes— (1) In the specifications (including..., or the time required for, the performance of any part of the work under this contract, whether or not... contract in writing. However, except for an adjustment based on defective specifications, no adjustment...

  14. 40 CFR 243.101 - Definitions.

    Science.gov (United States)

    2010-07-01

    ...) Generation means the act or process of producing solid waste. (n) Hazardous waste means a waste or... uncontrolled and unauthorized removal of materials at any point in the solid waste management system. (x... demolition wastes; and infectious wastes. (z) Stationary compactor means a powered machine which is...

  15. Metal-ligand interaction of lanthanides with coumarin derivatives. Part I. Complexation of 3-(1-aminoethylidene)-2H-chromene-2,4(3H)-dione with La(III), Ce(III), Nd(III) and Ho(III).

    Science.gov (United States)

    Swiatek, Mirosława; Kufelnicki, Aleksander

    2012-01-01

    Solutions of lanthanum(III), cerium(III), neodymium(III) and holmium(III) nitrates with 3-(1-aminoethylidene)-2H-chromene-2,4(3H)-dione (1) in 10% v/v dioxane-water medium were used. Coordination modes of 1 with the selected lanthanides have been examined. Hydroxo-complexes with deprotonated water molecules from the inner coordination sphere have been stated in basic medium. Stability constants of the forming complex species were determined by potentiometric titrations using Superquad and Hyperquad2003 programs. The most stable complexes are formed with La(III). The UV-Vis spectra of the Nd(III)-1 system confirmed the L:M = 1:1 stoichiometry evaluated potentiometrically.

  16. 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

  17. 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.)

  18. Dicty_cDB: VHH243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available nce update 2002.10.25 Translated Amino Acid sequence kccstinptfmink*KRREKKMNVKEMDFNDLSNKSNQIINRISSFSSPIGLSSF...leisllsfkhtltsllnntiy*itltnllivvpyllvvnkpfk ifnlelnvllcllvk*isqclvisylv* Frame B: kccstinptfmink*KRREKKMNVKE

  19. Dicty_cDB: CHE243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available ae genes during infection and propagation_sML Phytophthora sojae cDNA clone sML00...jae genes during infection and propagation_sZG Phytophthora sojae cDNA clone sZG001H24 5, mRNA sequence. 64 ...ojae genes during infection and propagation_sZS Phytophthora sojae cDNA clone sZS009J21 5, mRNA sequence. 64

  20. 1935 15' Quad #243 Aerial Photo Mosaic Index

    Data.gov (United States)

    Earth Data Analysis Center, University of New Mexico — Aerial Photo Reference Mosaics contain aerial photographs that are retrievable on a frame by frame basis. The inventory contains imagery from various sources that...

  1. Motivation for New Measurements on 241, 242, 243Am Isotopes

    International Nuclear Information System (INIS)

    The initial objective of this work was an updated review on the Am isotopes data since the next official release (3.1) of the JEFF3 evaluated data file is foreseen around June 2005. Alternatively, this work searches for the possible reasons of the observed discrepancies between differential and integral measurement results. In particular, strong differences are encountered on σγth values and epithermal branching ratio values for the 241Am. Although the JEF2.2 validation is used as guide in parallel with a systematic study of all differential and integral results available, the need for new measurements clearly shows up. This paper finally draws up a list of desired and feasible new differential and integral measurements on the Am isotopes

  2. 7 CFR 2.43 - Administrator, Foreign Agricultural Service.

    Science.gov (United States)

    2010-01-01

    ... Development, the European Union, the Food and Agriculture Organization of the United Nations, the... International Coffee Agreement or any such future agreement. (6) Administer functions of the Department relating... functions with respect to the International Sugar Agreement or any such future agreements. (12) Exercise...

  3. Dicty_cDB: SHL243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available plete sequence. 48 0.54 1 AJ410884 |AJ410884.1 Influenza A virus (swine/Cotes d'Armor/1515/99 (H1N1...za A virus (swine/Cotes d'Armor/1482/99 (H1N1)) partial N1NA gene for Neuraminidase, genomic RNA. 42 1.0 2 A

  4. 26 CFR 1.243-4 - Qualifying dividends.

    Science.gov (United States)

    2010-04-01

    .... (iii) Other members. The consent of each member of the affiliated group (other than a wholly owned... account number, and taxable year of each corporation (including wholly-owned subsidiaries) that is a...) Wholly owned subsidiary. If all of the stock of a corporation is owned by a member or members of...

  5. 26 CFR 1.243-5 - Effect of election.

    Science.gov (United States)

    2010-04-01

    ... member under the plan. (5) Consent of wholly owned subsidiaries. If all the stock of a corporation which is a member of the affiliated group on each day of its matching taxable year is owned on each such... matching taxable year, such corporation (hereinafter in this paragraph referred to as a “wholly...

  6. Dicty_cDB: SHB243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available R103667 |CR103667.1 Forward strand read from insert in 3'HPRT insertion targeting and chromosome engineering... in 3'HPRT insertion targeting and chromosome engineering clone MHPP186g09. 50 0.13 1 dna update 2005.12.21

  7. 48 CFR 52.243-7 - Notification of Changes.

    Science.gov (United States)

    2010-10-01

    ... (including actions, inactions, and written or oral communications) that the Contractor regards as a change to... substance of any oral communication involved in such conduct; (4) In the instance of alleged acceleration of..., means any person the Contracting Officer has so designated by written notice (a copy of which shall...

  8. Dicty_cDB: CHS243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FM992695_70( FM992695 |pid:none) Candida dubliniensis CD36 chromos... 35 1.5 EU361927_1( EU361927 |pid:none)... Daniellia klainei tRNA-Lys (trnK) ... 34 1.9 FM992689_882( FM992689 |pid:none) Candida dubli

  9. 12 CFR 303.243 - Brokered deposit waivers.

    Science.gov (United States)

    2010-01-01

    ... the institution's lending and investment activities, including a detailed discussion of asset growth... applicant is notified in writing to the contrary and provided with the basis for that decision. For the... decision is rendered. (g) Conditions for approval. A waiver issued pursuant to this section shall: (1)...

  10. Dicty_cDB: VFL243 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available kllkrlvmmthqkvlitklamf*lqlnnnhqillkvstl vkltqkilvlvikvtclvmpptkpql*chllisspln*stn...vklppkptltikklfvkllkrlvmmthqkvlitklamf*lqlnnnhqillkvstl vkltqkilvlvikvtclvmpptkpql*chllisspln*stn*lnyvtmvp*P

  11. 19 CFR 10.243 - Articles eligible for preferential treatment.

    Science.gov (United States)

    2010-04-01

    ... produced from fabric, all dyeing, printing, and finishing of that knitted or crocheted or woven fabric or... countries, or in the United States, or in both, exclusively from any one of the following: (i) Fabrics or fabric components wholly formed, or components knit-to-shape, in the United States, from yarns...

  12. 9 CFR 354.243 - Operations and procedures.

    Science.gov (United States)

    2010-01-01

    ... INSPECTION AND CERTIFICATION VOLUNTARY INSPECTION OF RABBITS AND EDIBLE PRODUCTS THEREOF Maintenance of..., and insects), considering the means intended to be employed in transporting the product from the plant... hygiene of personnel: (1) All employees coming in contact with exposed edible products or edible...

  13. 48 CFR 52.243-2 - Changes-Cost-Reimbursement.

    Science.gov (United States)

    2010-10-01

    ... the time required for, performance of any part of the work under this contract, whether or not changed... this contract and, if this contract is incrementally funded, the funds allotted for the performance of... the general scope of this contract in the plans and specifications or instructions incorporated in...

  14. 48 CFR 52.243-1 - Changes-Fixed-Price.

    Science.gov (United States)

    2010-10-01

    ... cost of, or the time required for, performance of any part of the work under this contract, whether or..., etc.). (3) Place of performance of the services. (4) Drawings, designs, or specifications when the... Officer shall make an equitable adjustment in (1) the contract price, the time of performance, or...

  15. 19 CFR 24.3 - Bills and accounts; receipts.

    Science.gov (United States)

    2010-04-01

    ... account for money due the United States shall be rendered by an authorized Customs officer or employee on... constitute evidence of such payment to Customs. Should a payer desire evidence of receipt, both the...

  16. 47 CFR 24.243 - The cost-sharing formula.

    Science.gov (United States)

    2010-10-01

    ...—antenna, necessary feed lines, MUX/Modems); towers and/or modifications; back-up power equipment... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES PERSONAL COMMUNICATIONS... control; power plant upgrade (if required); electrical grounding systems; Heating Ventilation and...

  17. 40 CFR 98.243 - Calculating GHG emissions.

    Science.gov (United States)

    2010-07-01

    ... produced each calendar month with a flow meter by following the procedures specified in § 98.244(b)(2... subpart C of this part (General Stationary Fuel Combustion Sources)). You are not required to use the same Tier for each stationary combustion unit that burns ethylene process off-gas. For each flare,...

  18. Editorial: phys. stat. sol. (b) 243/1

    Science.gov (United States)

    Stutzmann, Martin

    2006-01-01

    Dear Colleagues and Friends,on behalf of the Publishers, the Editorial Office, and the Editors of physica status solidi we wish you all the best for the coming year 2006! It is our sincere hope that your personal and professional experience with our journal has been a positive one and that you will continue to choose physica status solidi for the publication of your scientific findings in solid state physics also in the future.In doing so, you will be in increasingly good company! As a matter of fact, 2005 has been a year of exceptional growth in the number of manuscripts submitted to physica status solidi . Thus, the number of Original Papers which have reached our Editorial Office in Berlin has increased by as much as 30% compared to the long term average over the last ten years. For the Rapid Research Letter section, the corresponding increase has been even more impressive: more than +100% just in the last two years. We view this development as a confirmation of our longstanding efforts to ensure a timely publication service of high scientific quality. One relevant indicator for the high scientific standards expected from articles which are submitted for publication in physica status solidi is the average acceptance rate, which currently is less than 40%. This rate has continuously decreased from a value of about 60% ten years ago and bears witness to our efforts to strive for quality rather than quantity.Also, physica status solidi has been able to continue its long tradition as a truly international journal, despite of the strong competition in an established field such as solid state physics. In 2005, submitted papers have originated almost equally from the Americas, Europe, and Asia, with a clearly growing contribution from China, India, and Japan. We are actively working together with our international Editorial Boards and the Regional Editors to maintain a reasonable balance among papers from different parts of the world. The increasing international visibility of physica status solidi is impressively documented by the ever rising numbers of article downloads via the internet: on the average, each of the 2000 articles published annually in physica status solidi is presently accessed about 100 times via the www.Finally, let me mention some other recent developments, which are not so directly visible from the outside. Thus, a new all electronic publishing system has become operative in our Berlin Editorial Office in 2005, which allows a more efficient and timely handling of manuscripts from submission to publication (www.manuscriptXpress.com) and is particularly valuable for the editing of conference proceedings (conferences.wiley-vch.de). In addition, the functionality of the journal within the Wiley InterScience website has been enhanced by new features such as Citation Tracking. Together with the ongoing digitization of all physica status solidi issues since the 1960s, which is expected to be complete in 2006, this makes the physica status solidi homepage at Wiley InterScience a very valuable tool for literature search in solid state physics, past and present. Try it out at www.interscience.wiley.com!All of us from physica status solidi would like to convey to you our very best wishes for good health and success in the coming year 2006!

  19. 29 CFR 1910.243 - Guarding of portable powered tools.

    Science.gov (United States)

    2010-07-01

    ...) of this section does not apply to circular saws used in the meat industry for meat cutting purposes... care appliances, medical or dental equipment, or to fixed machinery. (3) Portable belt sanding machines... machinery. Natural sandstone wheels and metal, wooden, cloth, or paper discs, having a layer of abrasive...

  20. 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

  1. 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)

  2. 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.

  3. 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)

  4. Electrochemical oxidation of 243Am(III) in nitric acid by a terpyridyl-derivatized electrode

    Energy Technology Data Exchange (ETDEWEB)

    Dares, C. J.; Lapides, A. M.; Mincher, B. J.; Meyer, T. J.

    2015-11-05

    A high surface area, tin-doped indium oxide electrode surface-derivatized with a terpyridine ligand has been applied to the oxidation of trivalent americium to Am(V) and Am(VI) in nitric acid. Potentials as low as 1.8 V vs. the saturated calomel electrode are used, 0.7 V lower than the 2.6 V potential for one-electron oxidation of Am(III) to Am(IV) in 1 M acid. This simple electrochemical procedure provides, for the first time, a method for accessing the higher oxidation states of Am in non-complexing media for developing the coordination chemistries of Am(V) and Am(VI) and, more importantly, for separation of americium from nuclear waste streams.

  5. 25 CFR 243.4 - Who can own or possess Alaskan reindeer?

    Science.gov (United States)

    2010-04-01

    ... reindeer must, by the last day of September each year: (1) Provide us a copy of the contract with the Native reindeer owner; and (2) Provide us a written report of all Alaskan reindeer kept, born, died or...). (3) The permit-holder must report to us in writing by the last day of September each year on...

  6. 40 CFR 761.243 - Standard wipe sample method and size.

    Science.gov (United States)

    2010-07-01

    ... surface areas, when small diameter pipe, a small valve, or a small regulator. When smaller surfaces are sampled, convert the... pipe segment or pipeline section using a standard wipe test as defined in § 761.123. Detailed...

  7. Non-abelian representations of the slim dense near hexagons on 81 and 243 points

    CERN Document Server

    De Bruyn, B; Sastry, N S N

    2010-01-01

    We prove that the near hexagon $Q(5,2) \\times \\mathbb{L}_3$ has a non-abelian representation in the extra-special 2-group $2^{1+12}_+$ and that the near hexagon $Q(5,2) \\otimes Q(5,2)$ has a non-abelian representation in the extra-special 2-group $2^{1+18}_-$. The description of the non-abelian representation of $Q(5,2) \\otimes Q(5,2)$ makes use of a new combinatorial construction of this near hexagon.

  8. 19 CFR 24.3a - CBP bills; interest assessment; delinquency; notice to principal and surety.

    Science.gov (United States)

    2010-04-01

    ..., DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CUSTOMS FINANCIAL AND ACCOUNTING PROCEDURE § 24... obtained from the IRS or the CBP Office of Finance, Indianapolis, Indiana. For the convenience of...

  9. 48 CFR 52.243-3 - Changes-Time-and-Materials or Labor-Hours.

    Science.gov (United States)

    2010-10-01

    ... performance of the services. (4) Drawings, designs, or specifications when the supplies to be furnished are to..., or the time required for performance of any part of the work under this contract, whether or not... REGULATION (CONTINUED) CLAUSES AND FORMS SOLICITATION PROVISIONS AND CONTRACT CLAUSES Text of Provisions...

  10. 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.

  11. 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.

  12. Geologic interpretation of seismic data relocation Route 2, Littleton Road grade separation stations 243-252 in Harvard, Mass.

    Science.gov (United States)

    May, James E.; Linehan, Rev. Daniel

    1950-01-01

    During parts of June and July 1949 nine seismic traverses were made at this site. Upon preliminary office development, the velocity data for some of these traverses were though to be inadequate and it was recommended that these lines be re-surveyed. Later surveys (March 1950), however, of nearby sites indicated that the original data were reliable and that a re-survey was unnecessary. The work was done as part of a cooperative program of the Massachusetts Department of Public Works and the United States Geological Survey.

  13. Treatment of cryptorchidism with human chorionic gonadotropin or gonadotropin releasing hormone. A double-blind controlled study of 243 boys

    DEFF Research Database (Denmark)

    Christiansen, P; Müller, J; Buhl, S;

    1988-01-01

    We have conducted a modified double-blind study on the effect of human chorionic gonadotropin (hCG), gonadotropin releasing hormone (GnRH) and placebo on bilateral and unilateral maldescended testes. One hundred and fifty-five boys with bilateral and 88 boys with unilateral cryptorchidism fulfilled...... = 0.0009). Both testes descended in 25% of the boys following treatment with hCG, and improvement in the position of the testes was obtained in a further 25% of the cases. hCG administration resulted in complete testicular descent in 14% of boys with unilateral cryptorchidism compared with 3 and 0...... the use of hCG in the treatment of maldescended testes, whereas the study did not support a general use of GnRH administered intranasally....

  14. Intra-operative frozen section diagnosis of breast lesions: a retrospective analysis of 13 243 Chinese patients

    Institute of Scientific and Technical Information of China (English)

    NIU Yun; FU Xi-lin; YU Yong; Peizhong Peter Wang; CAO Xu-chen

    2007-01-01

    Background Although cytological methods for breast oncology have been used in recent decades, intra-operative frozen section has been playing a vital role in making therapeutic decisions. We analyzed a large series of frozen section diagnoses for Chinese cases of breast lesion within the last 15 years. The experience was expected to increase the diagnostic accuracy of cases with breast lesions.Methods The data from consecutive 13243 cases of breast lesions diagnosed with intra-operative frozen sections between 1988 to 2002 were compared with paraffin sections in a case by case manner. The causes of false negative and positive diagnoses as well as delayed diagnoses were analyzed.Results One hundred and seventeen cases (0.9%) were falsely diagnosed, with one false positive case and 116 false negative cases. The diagnosis of 47 cases (0.4%) was delayed. The proportion of several lesions had the features of the patients'ages. Six types (false invasion, peri-papilloma, adenoma of nipple duct, florid adenosis, sclerosing adenosis,and granulose cell tumor) of lesions may lead to false positive, and four types (morphological changes responding chemotherapy, well differentiated papillary carcinoma, invasive lobular carcinoma, and tubular carcinoma) to a false negative. Gross and microscopic findings may be inconsistent in two types of lesions (radial scar and florid adenosis)microscopic and clinical findings in three types (ganulomatous mastitis mammary, duct ectasia, and fat necrosis), and three types (abundant fat or sclerous tissues; borderline lesions and changes of post-chemotherapy) were likely wrongly classified.Conclusions Intra-operative frozen section can accurately identify breast lesions in many instances, leading to fewer errors on account of more diagnostic experience and understanding of diagnostic limitations.

  15. Protective efficacy of P7C3-S243 in the 6-hydroxydopamine model of Parkinson’s disease

    OpenAIRE

    De Jesús-Cortés, Héctor; Miller, Adam D.; Jeremiah K Britt; DeMarco, Anthony J; De Jesús-Cortés, Mayralis; Stuebing, Emily; Naidoo, Jacinth; Vázquez-Rosa, Edwin; Morlock, Lorraine; Williams, Noelle S.; Ready, Joseph M.; Narayanan, Nandakumar S.; Pieper, Andrew A.

    2015-01-01

    BACKGROUND There are currently no therapeutic options for patients with Parkinson’s disease that prevent or slow the death of dopaminergic neurons. We have recently identified the novel P7C3 class of neuroprotective molecules that blocks neuron cell death. AIMS The aim of this study was to determine whether treatment with highly active members of the P7C3 series blocks dopaminergic neuron cell death and associated behavioral and neurochemical deficits in the rat 6-hydroxydopamine (6-OHDA) mod...

  16. Angelman syndrome associated with an inversion of chromosome 15q11.2q24.3

    Energy Technology Data Exchange (ETDEWEB)

    Greger, V.; Knoll, J.H.M.; Wagstaff, J.; Lalande, M. [and others

    1997-03-01

    Angelman syndrome (AS) most frequently results from large ({ge}5 Mb) de novo deletions of chromosome 15q11-q13. The deletions are exclusively of maternal origin, and a few cases of paternal uniparental disomy of chromosome 15 have been reported. The latter finding indicates that AS is caused by the absence of a maternal contribution to the imprinted 15q11-q13 region. Failure to inherit a paternal 15q11-q13 contribution results in the clinically distinct disorder of Prader-Willi syndrome. Cases of AS resulting from translocations or pericentric inversions have been observed to be associated with deletions, and there have been no confirmed reports of balanced rearrangements in AS. We report the first such case involving a paracentric inversion with a breakpoint located {approximately}25 kb proximal to the reference marker D15S10. This inversion has been inherited from a phenotypically normal mother. No deletion is evident by molecular analysis in this case, by use of cloned fragments mapped to within {approximately}1 kb of the inversion breakpoint. Several hypotheses are discussed to explain the relationship between the inversion and the AS phenotype. 47 refs., 3 figs.

  17. 75 FR 60655 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes; Airbus...

    Science.gov (United States)

    2010-10-01

    ... Inspection Requirements'' (66 FR 23086, May 7, 2001). In addition to new airworthiness standards for... Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic... power unit (APU) bleed leak detection system could result in overheat of the fuel tank located in...

  18. 76 FR 432 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes; Airbus...

    Science.gov (United States)

    2011-01-05

    ... October 1, 2010 (75 FR 60655). That NPRM proposed to correct an unsafe condition for the specified...'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have... definition review against explosion hazards. * * * * * Failure of the auxiliary power unit (APU) bleed...

  19. Beliefs and opinions in caregiving of elderly with AIDS: an exploratory study - doi:10.5020/18061230.2010.p243

    Directory of Open Access Journals (Sweden)

    Raquel Farias Diniz

    2012-01-01

    Full Text Available Objective: To explore what informal caregivers of elderly with AIDS think about the disease itself, the infection in elderly people, and about being a caregiver. Methods: A qualitative study in which the thematic content analysis of interviews resulted in the emergence of three categories: “conceptions about AIDS”, “AIDS in old age” and “being a caregiver”. Results: We observed the emergence of issues related to the three aspects, which must be considered in a broader analysis within the patient-caregiver relationship. Such questions involve information about the disease, living with the patient, gender differences and the specificities resulting from the infection at this stage of life. Conclusion: From this study, it is expected that greater attention be given to relationships of care provided by informal network of support to elderly people living with AIDS, in order to foster researches on social, affective, motivational and behavior aspects of caregivers.

  20. Association of bta-miR-24-3p with serum antibody response to Mycoplasma spp. in beef cattle

    Science.gov (United States)

    The objective of this study was to identify microRNAs associated with a serum antibody response to Mycoplasma spp. in beef cattle. Serum from sixteen beef calves was collected at three points: summer of 2013, after calves were born; fall of the same year at weaning; and spring, 2014. All sera collec...

  1. 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.

  2. 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.

  3. 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.

  4. 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.)

  5. Identification of ANKRD11 and ZNF778 as candidate genes for autism and variable cognitive impairment in the novel 16q24.3 microdeletion syndrome

    NARCIS (Netherlands)

    Willemsen, Marjolein H.; Fernandez, Bridget A.; Bacino, Carlos A.; Gerkes, Erica; de Brouwer, Arjan P. M.; Pfundt, Rolph; Sikkema-Raddatz, Birgit; Scherer, Stephen W.; Marshall, Christian R.; Potocki, Lorraine; van Bokhoven, Hans; Kleefstra, Tjitske

    2010-01-01

    The clinical use of array comparative genomic hybridization in the evaluation of patients with multiple congenital anomalies and/or mental retardation has recently led to the discovery of a number of novel microdeletion and microduplication syndromes. We present four male patients with overlapping m

  6. Identification of ANKRD11 and ZNF778 as candidate genes for autism and variable cognitive impairment in the novel 16q24.3 microdeletion syndrome.

    NARCIS (Netherlands)

    Willemsen, M.H.; Fernandez, B.A.; Bacino, C.A.; Gerkes, E.; Brouwer, A.P.M. de; Pfundt, R.; Sikkema-Raddatz, B.; Scherer, S.W.; Marshall, C.R.; Potocki, L.; Bokhoven, J.H.L.M. van; Kleefstra, T.

    2010-01-01

    The clinical use of array comparative genomic hybridization in the evaluation of patients with multiple congenital anomalies and/or mental retardation has recently led to the discovery of a number of novel microdeletion and microduplication syndromes. We present four male patients with overlapping m

  7. A Rare Interstitial Duplication of 8q22.1–8q24.3 Associated with Syndromic Bilateral Cleft Lip/Palate

    Directory of Open Access Journals (Sweden)

    Regina Ferreira Rezek

    2014-01-01

    Full Text Available We present a rare case of 8q interstitial duplication derived from maternal balanced translocations in a patient with bilateral cleft lip and palate in syndromic form associated with other congenital malformations. G-banding cytogenetic analysis revealed a chromosomal abnormality in the form of the karyotype 46,XX der(22t(8;22(q22.1;p11.1mat. Chromosome microarray analysis evidenced a 49 Mb duplicated segment of chromosome 8q with no pathogenic imbalances on chromosome 22. Two siblings also carry the balanced translocation. We have compared this case with other “pure” trisomies of 8q patients reported in the literature and with genome wide association studies recently published. This work highlights the involvement of chromosome 8q in orofacial clefts.

  8. JAR 2015, 243, (rolnummer HD 200.149.163/02: Splitsing onderneming bij overgang van onderneming, Toepassing Klarenberg-arrest, Relatiebeding geldig)

    NARCIS (Netherlands)

    R.M. Beltzer

    2015-01-01

    De werknemer is in 2002 in dienst getreden bij HVB. Op 27 december 2007 is hij met HVB een relatiebeding overeengekomen. Per 1 oktober 2008 zijn de activiteiten van HVB overgenomen door Co & Co. De werknemer is verteld dat hij in dienst zou treden van Accountants & Co. Op 8 december 2008 is de naam

  9. 2.43 贲门失弛缓症患者的食管运动功能障碍的研究

    Institute of Scientific and Technical Information of China (English)

    陈焰; 宋震亚; 唐训球; 钱可大; 杜勤

    2001-01-01

    目的贲门失弛缓症是原发性食管运动功能障碍性疾病,其病因未明,多数认为是一种神经原性疾病,与食管壁肌间神经丛(Auerbach's神经丛)变性有关,患者食管体部缺少蠕动、食管下括约肌(LES)松弛不全.以往诊断主要依靠食管钡餐检查,本文研究贲门失弛缓症食管测压的改变及对诊断的价值.方法 35例贲门失弛缓症及30例健康志愿者.主要症状:吞咽困难35例,反流11例,胸痛5例,消瘦23例.所有患者均内镜检查,25例患者的食管腔扩大,11例同时伴滞留液,30例贲门区紧闭,推进胃镜时阻力感.5例可以较顺利进镜.食管钡餐表现:32例患者均显示钡剂通过贲门时的受阻,上方食管有不同程度的扩张,贲门部呈鸟嘴样改变.2 例食管钡餐无异常发现.食管测压采用液导法(仪器均是瑞典(CTD-Synectics公司产品). 测定食管下括约肌静息压(LESP)、下括约肌松弛压(LESRP),计算下括约肌松弛率(LESRR), 同时测食管上括约肌静息压(UESP)、食管上括约肌松弛压(UESRP).食管体部蠕动波幅、同步收缩波(局部或全程的同步收缩)和继发性收缩波(未吞咽时食管的收缩波)的发生百分比. 所有数据均采用x -±s表示,统计处理采用t检验.结果 1.食管体部测压表现:35例贲门失弛缓症患者体部100%均为同步收缩波,其中91.4%(32/35)为低幅同步收缩汉.8.6%(3/35)为正常幅度收缩波.85.7%(30/35 )同时存在继发性收缩,且继发性收缩也均是非传导性收缩波.静息食管压均高于胃内压.2 .食管下括约肌测定:贲门失弛缓症患者的LESP为49.0±41.3mmHg,明显高于对照的18. 7±4.5mmHg(P<0.01),82.9%(29/35)的患者的LESP明显高于对照,仅17.1%(6/35) 在正常范围内.食管下括约肌松弛率(LESRR)为69.1±16.3%,明显低于正常对照的96.0 ±0.1%(P<0.01).3.食管上括约肌测定:贲门失弛缓症患者食管上括约肌压力(UES P)为41.0±17.8mmHg,与正常对照组39.4±14.4mmHg无差异(P>0.05).结论食管测压是一种操作简便、快速而安全的食管功能检测方法,可观察食管各部位的运动功能.贲门失弛缓症患者食管体部低幅同步收缩波和LESRR增高尤其重要 ,可早期诊断及判断轻重程度,是确诊本病的可靠的方法.对所有疑为贲门失弛缓症的患者均应进行早期食管测压,不仅可早期发现疾病且对判断预后有帮助.

  10. Cavendish, Sueli & Valois, Michelle (Org. Teoria e prática da tradução literária. Recife: Editora UFPE, 2014. 243p.

    Directory of Open Access Journals (Sweden)

    Sonia Ramalho Farias

    2015-12-01

    Full Text Available Critical review of the book Theory and Practice of Literary Translation organized by Sueli Cavendish and Michelle Valois, seeking to learn simultaneously the double objective that sets the collection: the practice of translation and the need to theorize about it through the characteristic disciplinary character of several studies. Some tests were selected from a total of fourteen forming the Anthology. The review aims to detect multiple ways of thinking about translation and the extension of its concept by the various essayists. The text focuses specifically on the interchangeability of translating concepts, interpretation and criticism and dialogue that Translation Studies have with the Literary Theory, Comparative Literature and other disciplines.

  11. Interstitial deletion of 14q24.3-q32.2 in a male patient with plagiocephaly, BPES features, developmental delay, and congenital heart defects

    DEFF Research Database (Denmark)

    Cingöz, Sultan; Bache, Iben; Bjerglund, Lise;

    2011-01-01

    with developmental delay, language impairment, plagiocephaly, BPES features (blepharophimosis, ptosis, epicanthus), and congenital heart defect. The deletion breakpoints were fine mapped using fluorescence in situ hybridization (FISH) and the size of the deletion is estimated to be approximately 23¿Mb. Based...... on genotype-phenotype comparisons of the 10 previously published patients and the present case, we suggest that the shortest regions for deletion overlap may include candidate genes for speech impairment, mental retardation, and hypotonia....

  12. Comparison of direct $\\gamma$ production in $\\overline{p}p$ and $pp$ reactions at $\\sqrt{s}$=24.3-GeV

    CERN Document Server

    Camilleri, L

    1991-01-01

    Th e differenc e betwee n th e p p an d p p cros s sections , whic h i s a n estimat e o f th e annihilatio n diagra m ha s bee n measure d fo r th e first time . A preliminar y estimat e o f th e gluo n structur e functio n o f th e nucléo n i s foun d t o b e x G(x ) = A g ( 1 - x)n , wit h n = 3. 5 ± 0. 3 ± 0.5 .

  13. Decree 243/994 National Direction of Especial Subjects it create and will operate in the orbit of the External Relation Ministere

    International Nuclear Information System (INIS)

    Creates in the Ministry of External Relationships the Direction of Special Matters, to which concerns to study, to coordinate and to execute in the pertinent thing, the foreign policy of the Republic in the related with Nuclear Energy, Dismantle, human rights and Humanitarian Right, Population, Migration and Refugees, Drug traffic, Terrorism, Space Right and all those topics of political character that require to be considered in form separated by their special characteristic . The Direction of Special Political Matters in opinion of the Ministry of External Relationships will depend directly on the General Direction for Political Matters

  14. 76 FR 24832 - Airworthiness Directives; Airbus Model A330-201, -202, -203, -223, and -243 Airplanes, A330-300...

    Science.gov (United States)

    2011-05-03

    ... investigation confirmed that the surface defects were a result of de-bonding between the skin and honeycomb core... were a result of de-bonding between the skin and honeycomb core. Such reworks were also performed on... include vacuum loss and elasticity laminate checker inspections for damage including de-bonding...

  15. SU-E-J-243: Reproducibility of Radiomics Features Through Different Voxel Discretization Levels in F18-FDG PET Images of Cervical Cancer

    Energy Technology Data Exchange (ETDEWEB)

    Altazi, B; Fernandez, D; Zhang, G; Biagioli, M; Moros, E; Moffitt, H. Lee [Cancer Center, Tampa, FL, University of South Florida, Tampa, FL (United States)

    2015-06-15

    Purpose: Site-specific investigations of the role of Radiomics in cancer diagnosis and therapy are needed. We report of the reproducibility of quantitative image features over different discrete voxel levels in PET/CT images of cervical cancer. Methods: Our dataset consisted of the pretreatment PET/CT scans from a cohort of 76 patients diagnosed with cervical cancer, FIGO stage IB-IVA, age range 31–76 years, treated with external beam radiation therapy to a dose range between 45–50.4 Gy (median dose: 45 Gy), concurrent cisplatin chemotherapy and MRI-based Brachytherapy to a dose of 20–30 Gy (median total dose: 28 Gy). Two board certified radiation oncologists delineated Metabolic Tumor volume (MTV) for each patient. Radiomics features were extracted based on 32, 64, 128 and 256 discretization levels (DL). The 64 level was chosen to be the reference DL. Features were calculated based on Co-occurrence (COM), Gray Level Size Zone (GLSZM) and Run-Length (RLM) matrices. Mean Percentage Differences (Δ) of features for discrete levels were determined. Normality distribution of Δ was tested using Kolomogorov - Smirnov test. Bland-Altman test was used to investigate differences between feature values measured on different DL. The mean, standard deviation and upper/lower value limits for each pair of DL were calculated. Interclass Correlation Coefficient (ICC) analysis was performed to examine the reliability of repeated measures within the context of the test re-test format. Results: 3 global and 5 regional features out of 48 features showed distribution not significantly different from a normal one. The reproducible features passed the normality test. Only 5 reproducible results were reliable, ICC range 0.7 – 0.99. Conclusion: Most of the radiomics features tested showed sensitivity to voxel level discretization between (32 – 256). Only 4 GLSZM, 3 COM and 1 RLM showed insensitivity towards mentioned discrete levels.

  16. Deletions in chromosome 6p22.3-p24.3, including ATXN1, are associated with developmental delay and autism spectrum disorders

    Directory of Open Access Journals (Sweden)

    Celestino-Soper Patrícia BS

    2012-04-01

    Full Text Available Abstract Interstitial deletions of the short arm of chromosome 6 are rare and have been associated with developmental delay, hypotonia, congenital anomalies, and dysmorphic features. We used array comparative genomic hybridization in a South Carolina Autism Project (SCAP cohort of 97 subjects with autism spectrum disorders (ASDs and identified an ~ 5.4 Mb deletion on chromosome 6p22.3-p23 in a 15-year-old patient with intellectual disability and ASDs. Subsequent database queries revealed five additional individuals with overlapping submicroscopic deletions and presenting with developmental and speech delay, seizures, behavioral abnormalities, heart defects, and dysmorphic features. The deletion found in the SCAP patient harbors ATXN1, DTNBP1, JARID2, and NHLRC1 that we propose may be responsible for ASDs and developmental delay.

  17. A comprehensive study of fission in 24.3 MeV/nucleon U reactions induced on C, Si, Ni, Au targets

    International Nuclear Information System (INIS)

    Fission is a powerful tool for studying the primary reaction mechanisms in nucleus-nucleus collisions involving at least one fissionable nucleus. This is well shown when an additional information on the violence of the collision is provided by a totally independent observable such as the neutron multiplicity. The mass asymmetry in the entrance channel and the impact parameter are shown to have a decisive influence on the fate of the collision leading to either fusion or a two-body deeply inelastic reaction, analogous to what is known at lower bombarding energies. The experimental approach allows also to single out electromagnetic fission of U after interaction with Au and to provide some characteristics of such a process. (author)

  18. Neutron Fission of 235,237,239U and 241,243Pu: Cross Sections, Integral Cross Sections and Cross Sections on Excited States

    Energy Technology Data Exchange (ETDEWEB)

    Younes, W; Britt, H C

    2003-07-10

    In a recent paper submitted to Phys. Rev. C they have presented estimates for (n,f) cross sections on a series of Thorium, Uranium and Plutonium isotopes over the range E{sub n} = 0.1-2.5 MeV. The (n,f) cross sections for many of these isotopes are difficult or impossible to measure in the laboratory. The cross sections were obtained from previous (t,pf) reaction data invoking a model which takes into account the differences between (t,pf) and (n,f) reaction processes, and which includes improved estimates for the neutron compound formation process. The purpose of this note is: (1) to compare the estimated cross sections to current data files in both ENDF and ENDL databases; (2) to estimate ratios of cross sections relatively to {sup 235}U integrated over the ''tamped flattop'' critical assembly spectrum that was used in the earlier {sup 237}U report; and (3) to show the effect on the integral cross sections when the neutron capturing state is an excited rotational state or an isomer. The isomer and excited state results are shown for {sup 235}U and {sup 237}U.

  19. SCRIB and PUF60 are primary drivers of the multisystemic phenotypes of the 8q24.3 copy-number variant

    DEFF Research Database (Denmark)

    Dauber, Andrew; Golzio, Christelle; Guenot, Cécile;

    2013-01-01

    Copy-number variants (CNVs) represent a significant interpretative challenge, given that each CNV typically affects the dosage of multiple genes. Here we report on five individuals with coloboma, microcephaly, developmental delay, short stature, and craniofacial, cardiac, and renal defects who...

  20. Collecting high-order interactions in an effective pairwise intermolecular potential using the hydrated ion concept: The hydration of Cf{sup 3+}

    Energy Technology Data Exchange (ETDEWEB)

    Galbis, Elsa; Pappalardo, Rafael R.; Marcos, Enrique Sánchez, E-mail: sanchez@us.es [Departmento de Química Física, Universidad de Sevilla, 41012 Seville (Spain); Hernández-Cobos, Jorge [Instituto de Ciencias Físicas, UNAM, Apartado Postal 48-3, 62251 Cuernavaca (Mexico)

    2014-06-07

    This work proposes a new methodology to build interaction potentials between a highly charged metal cation and water molecules. These potentials, which can be used in classical computer simulations, have been fitted to reproduce quantum mechanical interaction energies (MP2 and BP86) for a wide range of [M(H{sub 2}O){sub n}]{sup m+}(H{sub 2}O){sub ℓ} clusters (n going from 6 to 10 and ℓ from 0 to 18). A flexible and polarizable water shell model (Mobile Charge Density of Harmonic Oscillator) has been coupled to the cation-water potential. The simultaneous consideration of poly-hydrated clusters and the polarizability of the interacting particles allows the inclusion of the most important many-body effects in the new polarizable potential. Applications have been centered on the californium, Cf(III) the heaviest actinoid experimentally studied in solution. Two different strategies to select a set of about 2000 structures which are used for the potential building were checked. Monte Carlo simulations of Cf(III)+500 H{sub 2}O for three of the intermolecular potentials predict an aquaion structure with coordination number close to 8 and average R{sub Cf−−O} in the range 2.43–2.48 Å, whereas the fourth one is closer to 9 with R{sub Cf−−O} = 2.54 Å. Simulated EXAFS spectra derived from the structural Monte Carlo distribution compares fairly well with the available experimental spectrum for the simulations bearing 8 water molecules. An angular distribution similar to that of a square antiprism is found for the octa-coordination.

  1. An unbalanced submicroscopic translocation t(8;16)(q24.3;p13.3)pat associated with tuberous sclerosis complex, adult polycystic kidney disease, and hypomelanosis of Ito

    NARCIS (Netherlands)

    H.J.F.M.M. Eussen (Bert); S. Verhoef; A. Fois; D.J.J. Halley (Dicky); G. Bartalini (Gabriella); L. Bakker (Lida); P. Balestri (Paolo); C. di Lucca; J.O. van Hemel; H. Dauwerse; A.M.W. van den Ouweland (Ans); C. Ris-Stalpers (Carolyn)

    2000-01-01

    textabstractWe report on a familial submicroscopic translocation involving chromosomes 8 and 16. The proband of the family had a clinical picture suggestive of a large deletion in the chromosome 16p13.3 area, as he was affected with tuberous sclerosis complex (TSC) and had alpha th

  2. Method validation for 243 pesticides and environmental contaminants in meats and poultry by tandem mass spectrometry coupled to low-pressure gas chromatography and ultra high-performance liquid chromatography

    Science.gov (United States)

    An easy and reliable high-throughput analysis method was developed and validated for 192 diverse pesticides and 51 environmental contaminants (13 PCB congeners, 14 PAHs, 7 PBDE congeners, and 17 novel flame retardants) in cattle, swine, and poultry muscle. Sample preparation was based on the “quick,...

  3. Monozygotic twins with a de novo 0.32 Mb 16q24.3 deletion, including TUBB3 presenting with developmental delay and mild facial dysmorphism but without overt brain malformation

    DEFF Research Database (Denmark)

    Grønborg, Sabine; Kjaergaard, Susanne; Hove, Hanne;

    2015-01-01

    Nervous system development is highly dependent on the function of microtubules, which are assembled from tubulin heterodimers containing several α- and β-tubulin isotypes encoded by separate genes. A spectrum of neurological disorders with malformations of the central nervous system has recently ...

  4. 16 CFR 24.3 - Misuse of the terms “waterproof,” “dustproof,” “warpproof,” “scuffproof,” “scratchproof,” “scuff...

    Science.gov (United States)

    2010-01-01

    ... indicating that the product is not subject to wear in any other respect, to describe an industry product unless the outside surface of the product is immune to scratches or scuff marks, or is not subject...

  5. As Aventuras de Huckleberry Finn de Mark Twain, Tradução de Rosaura Eichenberg.DOI: 10.5007/2175-7968.2011v2n28p243

    Directory of Open Access Journals (Sweden)

    Vanessa Lopes Lourenço Hanes

    2011-12-01

    Full Text Available A obra The Adventures of Huckleberry Finn é tida pela maioria dos críticos literários como a obra-prima de Mark Twain. Este livro, escrito em 1885, foi inclusive considerado a origem de toda a literatura americana moderna pelo célebre Hemingway.

  6. A rare prenatal case with two de novo inversions and a translocation: 48, XX,t(9;12)(q32;p24.3), inv(11)(p15.1q25), inv(13)(q12.q22)

    Energy Technology Data Exchange (ETDEWEB)

    Harrison, B.; Balaban, L.; Eldred, C. [Albany Medical College, Albany, NY (United States)] [and others

    1994-09-01

    Ultrasound examination of a para 1, gravida 2, 26 y.o. showed severe hydrocephalus and polyhydramnios. Amniocentesis was performed at 27 weeks. High resolution chromosome analysis revealed a karyotype with a 9;12 translocation, a pericentric inversion of chromosome 11, and a paracentric inversion of chromosome 13. Parental chromosome studies were normal. The mother was not on medication prior to her pregnancy and there was no known exposure to radiation. Delivery was at 34 weeks gestation. The phenotype consisted of micrognathia, low set ears, hypertelorism, and hydrodcephaly. Review of the literature revealed a single report with multiple de novo aberrations consisting of a 6;14 translocation and a deleted 7. This was diagnosed in the child of a woman with systemic lupus erythematous treated with azathioprine. These types of abnormalities have been known to be induced by chemical and radiation exposure. High resolution banding combined with molecular studies presently improve our ability to detect subtle structural aberrations.

  7. El general de brigada es um tipo de caramelo – tradução automática e aprendizagem cultural.
    DOI: 10.5007/2175-7968.2011v1n27p243

    OpenAIRE

    Nylcea Thereza de Siqueira Pedra; Ruth Bohunovsky

    2011-01-01

    O presente artigo tem por objetivo averiguar o papel assumido pela tradução (automática) no ensino/aprendizagem de línguas estrangeiras. Para tanto, discute-se, primeiramente, diferentes funções didáticas atribuídas à tradução. Entre elas, destaca-se a que objetiva a “aprendizagem cultural”, visando à sensibilização dos aprendizes para aspectos culturais relacionados à língua. Recorrendo a alguns teóricos, problematiza-se o uso de conceitos como “cultura”, “língua” e “tradução” e encontra-se ...

  8. María Teresa Pozzoli, Pensar de nuevo. Ensayos sobre pensamiento complejo (ecología, arte, psicología, educación y vida cotidiana), Editorial Universidad Bolivariana, Santiago, 2009, 243 p.

    OpenAIRE

    Cuadra, César

    2011-01-01

    María Teresa Pozzoli acaba de publicar su tercer libro de ensayos: Pensar de nuevo. Sin duda, un nuevo eslabón en su sostenida tarea por crear nuevas cartografías y nuevas rutas para el pensamiento en este nuevo milenio. Antes de éste, publicó La obediencia de Abraham (ensayo sobre el aprendizaje institucional de la obediencia patológica). Y aun antes, había publicado Complexus (un ensayo que transita por la psicología y las ciencias de la salud, y cuya propuesta apunta a un cambio cultural d...

  9. Multibeam collection for TN243: Multibeam data collected aboard Thomas G. Thompson from 2009-11-07 to 2009-11-09, departing from Seattle, WA and returning to Seattle, WA

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set is part of a larger set of data called the Multibeam Bathymetry Database (MBBDB) where other similar data can be found at...

  10. 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

  11. 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%

  12. 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

  13. 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.

  14. 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.

  15. 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

  16. Dicty_cDB: Contig-U00892-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 124 ggattattttaaagaattaaagagatatatatatttncttcatctcttttcaaccaataa 183 Query: 184 attgncaaatgaaaatgtgttaccna...|||||||||||||||| Sbjct: 184 attgncaaatgaaaatgtgttaccnataactcaaaactaaataataatattcnactttgc 243 Query: 244 naaa...aacc 303 Query: 304 cnattttaatggctgncctcccnagcttcnaactantgcttgatattatttananataaa 363 |||||||||||||||||||||||...||||||||||||||||||||||||||||||||||||| Sbjct: 304 cnattttaatggctgncctcccnagcttcnaactantgcttgatattatttananataa...Query: 184 attgncaaatgaaaatgtgttaccnataactcaaaactaaataataatattcnactttgc 243 ||||||||||||||||||||||||||||||||

  17. 77 FR 50323 - Railroad Workplace Safety; Roadway Worker Protection Miscellaneous Revisions (RRR)

    Science.gov (United States)

    2012-08-20

    ... of contractor employees at Sec. Sec. 243.1(b), 243.101(e)-(f), and 243.209. 77 FR 6453. These... Railroad Workplace Safety; Roadway Worker Protection Miscellaneous Revisions (RRR); Proposed Rule #0;#0... TRANSPORTATION Federal Railroad Administration 49 CFR Part 214 RIN 2130-AB89 Railroad Workplace Safety;...

  18. Dime, ¿y acaso tú sabes qué e' lo que e' la experiencia? : Barnet, Miguel (2012): Biografía de un cimarrón. La Habana, Editorial de Letras Cubanas, 243 pp. (Primera edición: 1966, Editorial de la Academia de Ciencias de Cuba)

    OpenAIRE

    Recchia Páez, Juan

    2014-01-01

    Me acababa de bajar del camión que nos trajo desde Santiago de Cuba y, caminando por las calles de Manzanillo, un pueblo ubicado en la costa oeste de la provincia de Granma, me adentré en una biblioteca. Enseguida una mujer me preguntó si buscaba algo particular, le conté que soy estudiante de literatura y profesor en escuelas secundarias, por lo que estaba recorriendo librerías de un modo un tanto casual, más bien para ver qué se publicaba y qué se leía en Cuba. Me habló de la circulación de...

  19. University Students Are Unaware of the Role of Academic Librarians. A Review of: Bickley, R. & Corral, S. (2011. Student perceptions of staff in the information commons: A survey at the University of Sheffield. Reference Services Review, 39(2, 223-243. doi:10.1108/00907321111135466

    Directory of Open Access Journals (Sweden)

    Kirsty Thomson

    2012-06-01

    Full Text Available Objective – To discover students’ perceptionsof information commons staff, and todetermine how these perceptions influence theuse of library resources.Design – Post-experience survey with onefollow-up interview.Setting – The University of Sheffield, a postsecondaryinstitution in England.Subjects – All undergraduate andpostgraduate students were invited to takepart. Just over 1% of the student population, or250 students, completed the survey.Methods – Information about the survey wassent to students’ institutional email addresses.One follow up interview was carried out viaemail using the critical incident technique.Main Results – Students do not understandthe academic roles of librarians. They areunlikely to approach library staff for academicsupport, preferring to turn to instructors, otherstudents, friends, and family. Most studentshad positive opinions about assistancereceived in the Information Commons, but asmall number reflected on previous badexperiences with staff, or on a fear of beingmade to feel foolish. The vast majority ofstudents who did not seek help in theInformation Commons stated that this wasbecause they did not require assistance. Most students do not perceive a difference between Information Commons staff and library staff.Conclusion – Students have positive views of Information Commons staff at the University of Sheffield, but have low awareness of the roles of professional librarians. Librarians need to develop partnerships with academic staff and strengthen their presence in both physical and online learning environments to promote their academic roles.

  20. [Dimitri Steinke: Die Zivilrechtsordnungen des Baltikums unter dem Einfluss ausländischer, insbesondere deutscher Rechtsquellen. (Osnabrücker Schriften zur Rechtsgeschichte, Bd. 16.) V&R unipress. Göttingen 2009. 243 S. ISBN 978-3-89971-573-6] / M

    Index Scriptorium Estoniae

    Luts-Sootak, Marju, 1966-

    2011-01-01

    Arvustus: Dimitri Steinke. Die Zivilrechtsordnungen des Baltikums unter dem Einfluss ausländischer, insbesondere deutscher Rechtsquellen. (Osnabrücker Schriften zur Rechtsgeschichte ; 16). Göttingen, 2009

  1. Further Study is Needed to Define and Measure the Use of Reflective Practice in Library and Information Science. A review of: Grant, Maria J. “The Role of Reflection in the Library and Information Sector: A Systematic Review.” Health Information and Libraries Journal 24.3 (2007: 155‐66.

    Directory of Open Access Journals (Sweden)

    Carol Perryman

    2008-03-01

    Full Text Available Objectives ‐ To identify and review the literature of reflective practice in library and information science (LIS in order to understand its role, particularly with regard to health libraries.Design ‐ Systematic reviewSetting ‐ LIS English‐language articles published between 1969 and 2006, and indexed in the Library and Information Science Abstracts (LISA database.Subjects ‐ 929 citations retrieved from the LISA database.Methods ‐ The author conducted free text searches in the LISA database for the terms ‘reflective,’ ‘reflection*,’ or ‘reflexion*.’ An initial search series was conducted in 2004 in order to retrieve items published between 1969‐2003, then in 2007 for articles published between 2004‐2006. In all, 929 article citations were retrieved. Exclusion criteria included those articles addressing the facilitation of reflective practices in others, as well as non‐English language materials,and those pre-dating 1969. After review, 55 articles met the author’s relevance standard.Citation tracking then added 10 articles to the total. From this dataset, full‐text articles were obtained where possible, if determined on initial scrutiny to be deserving of further examination. Thirteen articles (.013% were ultimately selected for analysis. These articles were categorized as analytical or non‐analytical, with respect to perspective (individual or organizational, and recency of events (retrospective or recent. In addition, a determination was made about whether the articles’ foci were reflection occurring on (in retrospect to or in (during practice.Main results ‐ Of thirteen articles, five were found to be non‐analytical, with the other six being analytical. Three of the non-analytical items were the reflections of an individual, while the remaining two offered an organizational perspective. The non-analytical accounts were found to be descriptive accounts by an individual, mostly retrospective and offering no consideration of implications for LIS practice. Analytical reflective accounts attempt to systematically appraise events from the recent past, and draw conclusions in order to improve future actions.Conclusion – A gradual increase in the use of analytical reflective practice is demonstrated over the period from 1969‐2006, although insufficient examples of the practice were found in the published literature. Reflective practice is likely to be beneficial to LIS practitioners, especially when time is spent in considering the implications of lessons learned from practice.

  2. 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

  3. 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.

  4. 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)

  5. 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)

  6. 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

  7. Local Purchasing of Journals is Required in Addition to a Nationally Purchased Collection to Meet the Information Needs of NHS Staff. A review of: Glover, Steven William, John Addison, Colette Gleghorn, and John Bramwell. “Journal Usage in NHS Hospitals: A Comparison Report of Total Usage at an Acute NHS Trust and a Specialist NHS Trust in the North West of England.” Health Information and Libraries Journal 24.3 (2007): 193‐9.

    OpenAIRE

    Jennie Kelson

    2008-01-01

    Objective ‐ To compare journal usage between an acute National Health Service (NHS) Trust and a specialist NHS Trust located in North West England to provide some evidence as to how well the National Core Content Collection (provided by ProQuest) meets the needs of staff in these settings.Design ‐ Comparative studySetting ‐ An acute NHS Trust, comprising four hospital sites, and a cancer specialist NHS Trust based on a single site. Both Trusts are located in North West England. The cancer spe...

  8. 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)

  9. 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

  10. 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).

  11. 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.

  12. 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.

  13. 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

  14. 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)

  15. 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

  16. 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

  17. 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.

  18. 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.

  19. 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

  20. 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.

  1. Sacred Space and Sublime Sacramental Piety

    DEFF Research Database (Denmark)

    Petersen, Nils Holger

    2012-01-01

    Analyses and Discussions of Mozart's Sacramental Litanies K. 125 and K. 243 in relation to the notions of the Sacred and the Sublime.......Analyses and Discussions of Mozart's Sacramental Litanies K. 125 and K. 243 in relation to the notions of the Sacred and the Sublime....

  2. U.S. Trends in Solid Waste Management and GHG Emissions

    Science.gov (United States)

    In 2009, 243 million tons of municipal solid waste (MSW) was produced in the United States. Currently, 34% of the 243 million tons of MSW is recovered and recycled or composted which conserves energy and natural resources as well as avoid waste disposal. Of the remaining MSW th...

  3. Balanced translocation in a patient with severe myoclonic epilepsy of infancy disrupts the sodium channel gene SCN1A

    DEFF Research Database (Denmark)

    Møller, Rikke S; Schneider, Lizette M; Hansen, Christian P;

    2008-01-01

    In a patient with severe myoclonic epilepsy of infancy (SMEI), we identified a de novo balanced translocation, t(2;5)(q24.3,q34). The breakpoint on chromosome 2q24.3 truncated the SCN1A gene and the 5q34 breakpoint was within a highly conserved genomic region. Point mutations or microdeletions of...

  4. AcEST: BP914429 [AcEST

    Lifescience Database Archive (English)

    Full Text Available EGEK SATKWI Sbjct: 184 LSENEEDLSDCAKRGIAVKPRKGDALLFFNLHPDAIPDPLSLHGGCPVIEGEKWSATKWI 243 Query: 184 HVQSLDSPARDVGDCKDEDESCG...PDAIPDPLSLHGGCPVIEGEKWSATKWI 243 Query: 184 HVQSLDSPARDVGDCKDEDESCGEWAAYGECQKNPTYMIGTSEQPGYCRRS 32 HV S D G+...IPVKPRKGDALLFYSLHPNATPDPLSLHGGCPVIQGEKWSATKWI 239 Query: 184 HVQSLDSPARDVGDCKDEDESCGEWAAYGECQKNPTYMIGTSEQPGY...ct: 152 KDDSWSACGKTGVAVKPRKGDALLFFSLHPSAVPDESSLHTGCPVIEGEKWSATKWIHVA 211 Query: 175 SLDSPARDVGDCKDEDESCG...PDPFSLHGGCPVIEGEKWSATKWI 242 Query: 184 HVQSLDSPARDVGDCKDEDESCGEWAAYGECQKNPTYMIGT

  5. Marine data and information management system for the Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Sarupria, J.S.

    stream_size 5 stream_content_type text/plain stream_name IGBP_Symp_Changes_Global_Clim_Natural_Human_Act_1997_243.pdf.txt stream_source_info IGBP_Symp_Changes_Global_Clim_Natural_Human_Act_1997_243.pdf.txt Content-Encoding ISO-8859...

  6. Marine data and information management system for the Indian Ocean

    Digital Repository Service at National Institute of Oceanography (India)

    Sarupria, J.S.

    stream_size 8 stream_content_type text/plain stream_name IGBP_India_2000_243.pdf.txt stream_source_info IGBP_India_2000_243.pdf.txt Content-Encoding ISO-8859-1 Content-Type text/plain; charset=ISO-8859-1 ...

  7. Dicty_cDB: VHC837 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available rus genomic clone 83o18rp42, genomic survey sequence. 52 0.006 1 AC128618 |AC1286... 0.024 1 DU420503 |DU420503.1 1098421082261 CHORI-243 Ovis aries genomic clone CH243-276B16, genomic surve...mic clone CH243-18M7, genomic survey sequence. 48 0.093 1 DU211287 |DU211287.1 1098538183724 CHORI-243 Ovis ...aries genomic clone CH243-445B11, genomic survey sequence. 48 0.093 1 AC170307 |A...ng_GS-30-02-01-1P0-1P3KB marine metagenome genomic clone 1061002936474 5', genomic survey sequence. 32 1.0 2

  8. 47 CFR 24.245 - Reimbursement under the Cost-Sharing Plan.

    Science.gov (United States)

    2010-10-01

    ... SERVICES PERSONAL COMMUNICATIONS SERVICES Broadband PCS Policies Governing Microwave Relocation from the... reimbursement cap as defined in § 24.243(b). Such reimbursement will not be subject to depreciation under...

  9. Libraries in Connecticut: MedlinePlus

    Science.gov (United States)

    ... http://www.berlinpeck.lib.ct.us/ Bethel Bethel Public Library 189 Greenwood Avenue Bethel, CT 06801 203-794-8756 http://www.bethellibrary.org/ Bloomfield Prosser Public Library 1 Tunxis Avenue Bloomfield, CT 06002 860-243- ...

  10. Pediatric Palliative Care: A Personal Story

    Medline Plus

    Full Text Available ... count__/__total__ Find out why Close Pediatric Palliative Care: A Personal Story NINRnews Subscribe Subscribed Unsubscribe 243 ... and her family. The story demonstrates how palliative care can positively influence a patient's and family's experience ...

  11. Report on progress of researches by common utilization of JAERI nuclear facilities, for fiscal 1993

    International Nuclear Information System (INIS)

    The results of the joint researches by utilizing the facilities of JAERI in 1993 fiscal year were summarized. The number of research themes in 1993 was 228 cases. In this book, 243 reports are collected. (J.P.N.)

  12. Integration of the information problem-solving skill in an educational programme: The effects of learning with authentic tasks.

    NARCIS (Netherlands)

    Brand-Gruwel, Saskia; Wopereis, Iwan

    2008-01-01

    Brand-Gruwel, S., & Wopereis, I. (2006). Integration of the information problem-solving skill in an educational programme: The effects of learning with authentic tasks. Technology, Instruction, Cognition, and Learning, 4, 243-263.

  13. Advances in Weight Loss Surgery: The Fully Robotic Gastric Bypass

    Medline Plus

    Full Text Available ... call, weighs approximately 243 pounds, has a body mass index or a BMI of 41, which qualifies ... instance, this patient here, who has a body mass index of 41, we know that those patients ...

  14. Disease: H00084 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available bone marrow transplant. Annu Rev Med 54:29-52 (2003) PMID:15931364 (drug) Iwasaki T. Recent advances in the treatment of graft-versus-host disease. Clin Med Res 2:243-52 (2004) ...

  15. Advances in Weight Loss Surgery: The Fully Robotic Gastric Bypass

    Medline Plus

    Full Text Available ... feet-five-inches call, weighs approximately 243 pounds, has a body mass index or a BMI of ... sleep apnea, gastroesophageal reflux disease, and depression. She has a previous open cholecystectomy, not laparoscopic, and that ...

  16. SOAP in Practice: Learning Outcomes of a Cross-Institutional Innovation Project Conducted by Teachers, Student Teachers, and Teacher Educators

    NARCIS (Netherlands)

    Seezink, Audrey; Poell, Rob; Kirschner, Paul A.

    2010-01-01

    Seezink, A., Poell, R. F., & Kirschner, P. A. (2010). SOAP in practice: learning outcomes of a cross-institutional innovation project conducted by teachers, student teachers, and teacher educators. European Journal of Teacher Education, 33(3), 229-243.

  17. Tagasi Pariisis / Karl Rumor

    Index Scriptorium Estoniae

    Rumor, Karl, pseud., 1886-1971

    2008-01-01

    Prantsusmaa sisepoliitilisest olustikust. Poliitilistest oludest 1937. aasta Euroopas, sõjameeleoludest Vahemerel, Nyloni konverentsist. Varem ilmunud: Uus Eesti 21. juuni 1937, nr. 166; 8., 13. sept. 1937, nr. 243, 248

  18. Dutch occupational physicians and general practitioners wish to improve cooperation

    NARCIS (Netherlands)

    Buijs, P.; Amstel, R. van; Dijk, F. van

    1999-01-01

    Objectives - To investigate cooperation between occupational physicians (OPs) and general practitioners (GPs). Methods - Literature review; structured interviews; questionnaires sent to randomised samples of OPs (n = 232) and GPs (n = 243). Results - Actual cooperation is poor. However, more than 80

  19. Superpave沥青混凝土的应用和控制

    Institute of Scientific and Technical Information of China (English)

    肖国华

    2010-01-01

    在S243省道的路面设计采用superpave型.同时在上面层中采用SBS改性沥青.笔者通过在243省道沥青混凝土的施工中的实践和体会,谈谈Superpave沥青混凝土的应用和控制.

  20. Molecular Detection of Healthiness of Bombyx mori

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    [Objective] The paper was to explore the regularity between heat shock protein expression and the healthiness changes of Bombyx moil materials. [Method] The representative heat shock protein gene Bmhsp24.3 was screened by bioinfor- matic analysis method, and carried out real-time PCR expression analysis. [Result] The target gene Bmhsp24.3 expressed in different B. mori materials, but the expres- sion level in different materials significantly varied. The relative expression level of the gene had different degrees of changes under different rearing conditions. With the increase of rearing temperature, the gene expression was upregulated. The ma- terials with better healthiness had remarkable increase in expression of target gene, while the materials with poorer healthiness had less increase in expression of target gene. The expression difference of target gene Bmhsp24.3 was exactly consistent with the healthiness of breeds. [Conclusion] The healthiness of materials had rela- tionship with expression of target gene Bmhsp24.3. the higher the expression of tar- get gene Bmhsp24.3 was, the better the healthiness of materials was; conversely, the lower the expression of target gene Bmhsp24.3 was, the poorer the healthiness of materials was.

  1. The EhADH112 recombinant polypeptide inhibits cell destruction and liver abscess formation by Entamoeba histolytica trophozoites.

    Science.gov (United States)

    Martínez-López, Carolina; Orozco, Esther; Sánchez, Tomás; García-Pérez, Rosa María; Hernández-Hernández, Fidel; Rodríguez, Mario A

    2004-04-01

    The Entamoeba histolytica EhCPADH complex, formed by a cysteine proteinase (EhCP112) and an adhesin (EhADH112), is involved in adherence, phagocytosis and cytolysis. This makes this complex an attractive candidate as a vaccine against amoebiasis. Here, we produced the recombinant polypeptide EhADH243, which includes the adherence epitope detected by a monoclonal antibody against the EhCPADH complex. EhADH243 was purified, and the effect of the polypeptide on in vitro and in vivo virulence was studied. Antibodies against EhADH243 reacted with the EhCPADH complex and with the recombinant polypeptide. EhADH243 and antibodies against this polypeptide inhibited adherence, phagocytosis and destruction of cell monolayers by live trophozoites, but had little effect on cell monolayer destruction by trophozoite extracts. EhADH243 recognized a 97 kDa protein in the MDCK membrane fraction that could be a putative receptor for E. histolytica trophozoites. Hamsters immunized with EhADH243 developed humoral response against EhCPADH, and animals were partially protected from amoebic liver abscess.

  2. 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

  3. 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.

  4. 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.)

  5. 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

  6. 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)

  7. 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).

  8. 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)

  9. 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.

  10. 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

  11. 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

  12. 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)

  13. 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.

  14. 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.

  15. 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.

  16. 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)

  17. 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.

  18. Enhanced sensitivity in H photofragment detection by two-color reduced-Doppler ion imaging

    Science.gov (United States)

    Epshtein, Michael; Portnov, Alexander; Kupfer, Rotem; Rosenwaks, Salman; Bar, Ilana

    2013-11-01

    Two-color reduced-Doppler (TCRD) and one-color velocity map imaging (VMI) were used for probing H atom photofragments resulting from the ˜243.1 nm photodissociation of pyrrole. The velocity components of the H photofragments were probed by employing two counterpropagating beams at close and fixed wavelengths of 243.15 and 243.12 nm in TCRD and a single beam at ˜243.1 nm, scanned across the Doppler profile in VMI. The TCRD imaging enabled probing of the entire velocity distribution in a single pulse, resulting in enhanced ionization efficiency, as well as improved sensitivity and signal-to-noise ratio. These advantages were utilized for studying the pyrrole photodissociation at ˜243.1 and 225 nm, where the latter wavelength provided only a slight increase in the H yield over the self-signal from the probe beams. The TCRD imaging enabled obtaining high quality H+ images, even for the low H photofragment yields formed in the 225 nm photolysis process, and allowed determining the velocity distributions and anisotropy parameters and getting insight into pyrrole photodissociation.

  19. Enhanced sensitivity in H photofragment detection by two-color reduced-Doppler ion imaging

    Energy Technology Data Exchange (ETDEWEB)

    Epshtein, Michael; Portnov, Alexander; Kupfer, Rotem; Rosenwaks, Salman; Bar, Ilana, E-mail: ibar@bgu.ac.il [Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva 84105 (Israel)

    2013-11-14

    Two-color reduced-Doppler (TCRD) and one-color velocity map imaging (VMI) were used for probing H atom photofragments resulting from the ∼243.1 nm photodissociation of pyrrole. The velocity components of the H photofragments were probed by employing two counterpropagating beams at close and fixed wavelengths of 243.15 and 243.12 nm in TCRD and a single beam at ∼243.1 nm, scanned across the Doppler profile in VMI. The TCRD imaging enabled probing of the entire velocity distribution in a single pulse, resulting in enhanced ionization efficiency, as well as improved sensitivity and signal-to-noise ratio. These advantages were utilized for studying the pyrrole photodissociation at ∼243.1 and 225 nm, where the latter wavelength provided only a slight increase in the H yield over the self-signal from the probe beams. The TCRD imaging enabled obtaining high quality H{sup +} images, even for the low H photofragment yields formed in the 225 nm photolysis process, and allowed determining the velocity distributions and anisotropy parameters and getting insight into pyrrole photodissociation.

  20. The role of the sulfonium linkage in the stabilization of the ferrous form of myeloperoxidase: a comparison with lactoperoxidase.

    Science.gov (United States)

    Brogioni, Silvia; Stampler, Johanna; Furtmüller, Paul G; Feis, Alessandro; Obinger, Christian; Smulevich, Giulietta

    2008-05-01

    In all mammalian peroxidases, the heme is covalently attached to the protein via two ester linkages between conserved aspartate (Asp94) and glutamate residues (Glu242) and modified methyl groups on pyrrole rings A and C. Only myeloperoxidase has an additional sulfonium ion linkage between the sulfur atom of the conserved methionine 243 and the beta-carbon of the vinyl group on pyrrole ring A. Upon reduction from Fe(III) to Fe(II), lactoperoxidase (LPO) but not myeloperoxidase (MPO) is shown to adopt three distinct active site conformations which depend on pH and time. Comparative spectroscopic analysis (UV-Vis absorption and resonance Raman) of the ferrous forms of LPO, wild-type MPO and the variants Asp94Val, Glu242Gln, Met243Thr and Met243Val clearly demonstrate that a single, stable ferrous form of MPO is present only in those proteins which retain an intact sulfonium linkage. By contrast, both ferrous Met243Thr and Met243Val can assume two conformations. They resemble ferrous LPO, being five-coordinated high-spin species that are distinguished by the strength of the proximal Fe-histidine bond. This bond weakens with time or decreasing pH, as indicated by the Fe-histidine stretching bands.

  1. Simultaneous spectrophotometric determination of drotaverine hydrochloride and paracetamol in tablet

    Directory of Open Access Journals (Sweden)

    Mahaparale Sonali

    2010-01-01

    Full Text Available Two simple, accurate and reproducible spectrophotometric methods; Q analysis and first order derivative method have been described for the simultaneous estimation of drotaverine hydrochloride and paracetamol in combined tablet dosage form. Absorption maxima of drotaverine hydrochloride and paracetamol in distilled water were found to be 303.5 nm and 243.5 nm respectively. Beer′s law was obeyed in the concentration range 5-50 µg/ml for drotaverine and 5-60 µg/ml for paracetamol. In Q analysis method, two wavelengths were selected at isobestic point (277 nm and λmax of paracetamol (243.5 nm. In first order derivative method, zero crossing point for drotaverine hydrochloride and paracetamol were selected at 303.5 nm and 243.5 nm, respectively. The results of two methods were validated statistically and recovery studies were found to be satisfactory.

  2. Construction and identification of reverse genetics system of Dengue type 2 virus isolated in China

    Institute of Scientific and Technical Information of China (English)

    ZHU Wuyang; CHEN Shuiping; QIN Chenggeng; YU Man; JIANG Tao; DENG Yongqiang; QIN Ede

    2006-01-01

    To construct infectious full-length cDNA clone of dengue virus type 2 isolated in China (DEN2-43), according to the published nucleotide sequence of the virus strain, the approximately 11 kb full-length cDNAs of DEN2-43 were amplified by long RT-PCR and fusion PCR. Full-length cDNA clones were constructed by inserting the full-length cDNA into a low copy vector pWSK29, from which rescued virus D212 was acquired by transcription in vitro and electroporation. The full-length cDNA clone pD212 was infectious, and rescued virus acquired in C6/36 cells was indistinguishable from DEN2-43 virus in biological properties including suckling mice neurovirulence. The reverse genetics system helps elucidate the mechanism of pathogenesis of dengue virus and develop novel vaccine against dengue.

  3. Dicty_cDB: CHR644 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 93104 |DU493104.1 1098415727216 CHORI-243 Ovis aries genomic clone CH243-335I21, genomic survey sequence. 54...ulentum genomic clone LE_HBa0074J17 5, genomic survey sequence. 34 0.18 3 CE248491 |CE248491.1 tigr-gss-dog-...17000335422026 Dog Library Canis familiaris genomic, genomic survey sequence. 42 0.28 2 CE289638 |CE289638.1... tigr-gss-dog-17000333838157 Dog Library Canis familiaris genomic, genomic survey... sequence. 42 0.33 2 CE336138 |CE336138.1 tigr-gss-dog-17000334037705 Dog Library Canis familiaris genomic, genomic survey

  4. Surface behavior of apolipoprotein A-I and its deletion mutants at model lipoprotein interfaces

    OpenAIRE

    Wang, Libo; Mei, Xiaohu; Atkinson, David; Small, Donald M.

    2014-01-01

    Apolipoprotein A-I (apoA-I) has a great conformational flexibility to exist in lipid-free, lipid-poor, and lipid-bound states during lipid metabolism. To address the lipid binding and the dynamic desorption behavior of apoA-I at lipoprotein surfaces, apoA-I, Δ(185-243)apoA-I, and Δ(1-59)(185-243)apoA-I were studied at triolein/water and phosphatidylcholine/triolein/water interfaces with special attention to surface pressure. All three proteins are surface active to both interfaces lowering th...

  5. Increased spectral bandwidths in nonlinear conversion processes by use of multicrystal designs.

    Science.gov (United States)

    Brown, M

    1998-10-15

    The fourth-harmonic generation of broadband 243-nm radiation is reported. The broadband radiation is achieved by implementation of a multicrystal design to overcome spectral bandwidth limitations, and a plane-wave analysis is developed that shows increased spectral bandwidths for these designs. The fourth harmonic of a Cr:LiSAF laser operating at 972 nm is generated in beta-barium borate (BBO). The results demonstrate a spectral bandwidth at 243 nm more than five times broader than that which is expected from a single BBO crystal of equivalent length.

  6. Some notes on the butterflies (Lepidoptera: Papilionoidea of Tantirimale Archaeological Site, Anuradhapura District, Sri Lanka

    Directory of Open Access Journals (Sweden)

    M.D.C. Asela

    2009-07-01

    Full Text Available There are 243 species of butterflies which including 5 families in Sri Lanka and 20 of them are endemic. However out of the 243 species 37 butterfly species belonging to 4 families was discovered from Tanthirimale Archaeological Forest area. This forest is classified as a Tropical dry mixed evergreen forests and its situated dry zone in Anuradapura district of Sri Lanka. We select three habitat types such as: forests, Rock outcrops and scrublands for studding composition and structure of butterflies in Archaeological Forest area. However, this important forest is threatened by harmful human activities such as man made fire, illegal logging, chena cultivation and road kills.

  7. Research of vertical migration of radionuclides in the soil at testing 'Red forest' area

    International Nuclear Information System (INIS)

    Researches of vertical migration of Chernobyl origin radionuclides at testing 'Red forest' rea in 5-km ChNPP-zone were carried out. The γ- and β- spectrometer measurements of soil samples were carried out using the anticompton spectrometer and a beta spectrometer. Presence of 60Co, 134, 137Cs, 154,155Eu, 241Am to depth of 30 cm in all soil cuts was fixed. The sites with sod-low-podzol sandy soils on alluvial sands contain 137Cs, 90Sr and 241Am to depth of 60 cm. The presence 243Am and 243Cm was found in the top layers of soils at territory of testing area.

  8. Increased spectral bandwidths in nonlinear conversion processes by use of multicrystal designs.

    Science.gov (United States)

    Brown, M

    1998-10-15

    The fourth-harmonic generation of broadband 243-nm radiation is reported. The broadband radiation is achieved by implementation of a multicrystal design to overcome spectral bandwidth limitations, and a plane-wave analysis is developed that shows increased spectral bandwidths for these designs. The fourth harmonic of a Cr:LiSAF laser operating at 972 nm is generated in beta-barium borate (BBO). The results demonstrate a spectral bandwidth at 243 nm more than five times broader than that which is expected from a single BBO crystal of equivalent length. PMID:18091854

  9. 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

  10. Creating Rich Portraits: A Mixed-Methods Approach to Understanding Profiles of Intrinsic and Extrinsic Motivations

    Science.gov (United States)

    Corpus, Jennifer Henderlong; Wormington, Stephanie V.; Haimovitz, Kyla

    2016-01-01

    A person-centered, mixed-methods approach (self-report surveys, semistructured interviews, school records) was used to characterize and evaluate profiles of intrinsic and extrinsic motivations among 243 third- through eighth-grade students. Cluster analysis suggested four distinct profiles: high quantity (high intrinsic, high extrinsic), primarily…

  11. Health Beliefs of College Students Born in the United States, China, and India

    Science.gov (United States)

    Rothstein, William G.; Rajapaksa, Sushama

    2003-01-01

    The authors surveyed 243 urban public university students who were born in the United States, China, and India to compare the health beliefs of the China-born, India-born, and US-born students. Although the China- and India-born students shared beliefs in many preventive and therapeutic practices of Western medicine with the US-born students, they…

  12. 阅读理解练习

    Institute of Scientific and Technical Information of China (English)

    胡永德

    2009-01-01

    难度:★★★☆☆字数:243建议时间:4分钟Barrack Hussein Obama,born on August 4,1961,is the President-elect of the United States and the first African-American to be elected President of the United States.Obama was the junior senator(参

  13. A Proposed Reaction Channel for the Synthesis of the Superheavy Nucleus Z=109

    Institute of Scientific and Technical Information of China (English)

    WANG Kun; MA Yu-Gang; MA Guo-Liang; WEI Yi-Bin; CAI Xiang-Zhou; CHEN Jin-Gen; GUO Wei; ZHONG Chen; SHEN Wen-Qing

    2004-01-01

    @@ We apply a statistical-evaporation model (HIVAP) to calculate the cross sections of superheavy elements, mainly about actinide targets and compare with some available experimental data. A reaction channel 30Si + 243Am is proposed for the synthesis of the element Z = 109 and the cross section is estimated.

  14. The Morquio A syndrome (mucopolysaccharidosis IVA) gene maps to 16q24. 3

    Energy Technology Data Exchange (ETDEWEB)

    Baker, E.; Xiaohui Guo; Orsborn, A.M.; Sutherland, G.R.; Callen, D.F.; Hopwood, J.J.; Morris, C.P. (Adelaide Children' s Hospital, North Adelaide (Australia))

    1993-01-01

    The gene for N-acetylgalactosamine-6-sulfatase, the deficiency of which results in Morquio A syndrome (mucopolysaccharidosis type IVA), was assigned to chromosome 16 at band q24.3 by fluorescence in situ hybridization. Localization to this band was confirmed by PCR analysis of a somatic cell hybrid panel used for fine mapping of chromosome 16. 12 refs., 1 fig., 1 tab.

  15. Understanding Tobacco-Related Attitudes among College and Noncollege Young Adult Hookah and Cigarette Users

    Science.gov (United States)

    Lee, Youn Ok; Bahreinifar, Sareh; Ling, Pamela M.

    2014-01-01

    Objective: To examine differences in tobacco-related attitudes and hookah and cigarette use among college and noncollege young adults. Participants: Time-location samples of young adult bar patrons in San Diego, California ("N" = 2,243), Tulsa ("N" = 2,095) and Oklahoma City ("N" = 2,200), Oklahoma, Albuquerque…

  16. New floristic records in the Balkans: 3

    DEFF Research Database (Denmark)

    2006-01-01

    ), Plantaginaceae (122), Poaceae (69-70, 108, 115, 116, 127), Polygalaceae (183), Polygonaceae (55), Pyrolaceae (184), Ranunculaceae (11, 83, 84, 113, 123, 185), Rhamnaceae (56), Rosaceae (130, 186-189, 222), Rubiaceae (57, 190, 223-225), Salicaceae (58), Salviniaceae (98), Santalaceae (191), Sapindaceae (243...

  17. 76 FR 63719 - Endangered and Threatened Wildlife and Plants; 12-Month Finding on a Petition To List a Distinct...

    Science.gov (United States)

    2011-10-13

    ... Federal Register (73 FR 63919). We found that the petition presented substantial information indicating... Arborimus for tree voles, which Johnson (1968, p. 27; 1973, p. 243) later proposed elevating to full generic... height. Tree vole nests tend to be found in the lower portion of the tree crown (Gillesburg and...

  18. Evapotranspiration and heat fluxes over a patchy forest - studied using modelling and measurements

    DEFF Research Database (Denmark)

    Sogachev, Andrey; Dellwik, Ebba; Boegh, Eva

    and latent heat flux above forest downwind of a forest edge show these fluxes to be larger than the available energy over the forest (Klaassen et al. 2002, Theor. Appl. Climatol. 72, 231-243). Because such flux measurements are very often used for calibration of forest parameters or model constants, further...

  19. Internet Gambling and Problem Gambling among 13 to 18 Year Old Adolescents in Iceland

    Science.gov (United States)

    Olason, Daniel Thor; Kristjansdottir, Elsa; Einarsdottir, Hafdis; Haraldsson, Haukur; Bjarnason, Geir; Derevensky, Jeffrey L.

    2011-01-01

    This study reports findings on Internet gambling and problem gambling among Icelandic youth. Participants were 1.537 13-18 year-old students, 786 boys and 747 girls. Results revealed that 56.6% had gambled at least once in the past 12 months and 24.3% on the Internet. Gender and developmental differences were found for Internet gambling, as boys…

  20. Moral Disengagement Moderates the Link between Psychopathic Traits and Aggressive Behavior among Early Adolescents

    Science.gov (United States)

    Gini, Gianluca; Pozzoli, Tiziana; Bussey, Kay

    2015-01-01

    This study investigated the relationships between three psychopathic dimensions (callousness/unemotionality, grandiosity/manipulation, and impulsivity/irresponsibility) and reactive and instrumental aggression in a community sample of early adolescents (N = 243, age M = 12.29, SD = 1.18). The moderating role of moral disengagement (MD) was also…

  1. Annealing Effects on the Photoluminescence and Optical Properties of In-Doped CdS Films

    Directory of Open Access Journals (Sweden)

    Seniye KARAKAYA

    2014-07-01

    Full Text Available Among the II–IV semiconductor compounds, CdS (band gap 2.43 eV have large applications as photoconductors, in semiconductor lasers, nonlinear optical devices and photovoltaic solar cells. In this work; In-doped CdS (CdS:In

  2. 7 CFR 2.49 - Administrator, Rural Housing Service.

    Science.gov (United States)

    2010-01-01

    ... joint regulations issued pursuant thereto by the Attorney General and the Comptroller General (4 CFR... Executive Order 12580, 3 CFR, 1987 Comp., p. 193, under the following provisions of the Comprehensive... section 1-601 of Executive Order 12088, 3 CFR, 1978 Comp., p. 243, to enter into an inter-agency...

  3. 16.5.Lymphatic system and lymphoma

    Institute of Scientific and Technical Information of China (English)

    1992-01-01

    920380 Primary Non-Hodgkin’s lymphomasof the brain:a clinic-pathological immuno-histochemical study and image analysis of 10cases.I,Immunohistochemical study,LIUKaifeng (刘开凤),et al.Dept Pathol,West-ChinMed Univ.Tumor 1991;11(6):243-245.

  4. A Confirmatory Factor Analysis of Preservice Teachers' Responses to the Attitudes and Beliefs on Classroom Control Inventory.

    Science.gov (United States)

    Henson, Robin K.; Roberts, J. Kyle

    This study examined the factorial invariance of scores from the Attitudes and Beliefs on Classroom Control Inventory (ABCC) (Martin and others, 1998) for 243 undergraduate preservice teachers. Although the original ABCC was developed with inservice teachers, use of the instrument to study the classroom beliefs of preservice teachers had not been…

  5. Class Attendance in College: A Meta-Analytic Review of the Relationship of Class Attendance with Grades and Student Characteristics

    Science.gov (United States)

    Crede, Marcus; Roch, Sylvia G.; Kieszczynka, Urszula M.

    2010-01-01

    A meta-analysis of the relationship between class attendance in college and college grades reveals that attendance has strong relationships with both class grades (k = 69, N = 21,195, p = 0.44) and GPA (k = 33, N = 9,243, p = 0.41). These relationships make class attendance a better predictor of college grades than any other known predictor of…

  6. Hypothalamus

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    2008403 Analysis of catch-up growth pattern to recombinant human growth hormone treatment in prepubertal children with short stature and various secretory forms of growth hormone. SU Zhe(苏吉吉), et al. Dept Pediat, 1st Affili Hosp, Sun Yat-sen Univ, Guangzhou 510080. Chin J Endocrinol Metab 2008;24(3):239-243.

  7. 75 FR 69086 - Agency Forms Undergoing Paperwork Reduction Act Review

    Science.gov (United States)

    2010-11-10

    ... metropolitan area health departments will train medical personnel how to complete the ALS Case Reporting Form... response (in respondent hours) Training Medical Personnel/ 243 1 30/60 Neurologist. ALS Case Reporting Form Medical Personnel/ 2,250 1 5/60 Neurologist. ALS Medical Record Verification Form.. Neurologist 450 1...

  8. 77 FR 6411 - Training, Qualification, and Oversight for Safety-Related Railroad Employees

    Science.gov (United States)

    2012-02-07

    ..., and 243 Training, Qualification, and Oversight for Safety-Related Railroad Employees; Proposed Rule #0... Training, Qualification, and Oversight for Safety-Related Railroad Employees AGENCY: Federal Railroad... employee to develop and submit a training program to FRA for approval and to designate the qualification...

  9. The risk of multiple sclerosis in nurses

    DEFF Research Database (Denmark)

    Stenager, Egon; Brønnum-Hansen, Henrik; Koch-Henriksen, Nils

    2003-01-01

    The incidence of multiple sclerosis (MS) in nurses during the period 1980-1996 was calculated in a nationwide study. The cohort consisted of 69,428 nurses, 2185 men and 67,243 women. Sixty (two men and 58 women) with definite MS were observed, whereas 69.3 were expected. We found no significant...

  10. Writing the Qualitative Dissertation: What Motivates and Sustains Commitment to a Fuzzy Genre?

    Science.gov (United States)

    Belcher, Diane; Hirvela, Alan

    2005-01-01

    Several L2 literacy specialists, for example, Flowerdew [Flowerdew, J. (1999). Problems in writing for scholarly publication in English: The case of Hong Kong. "Journal of Second Language Writing," 8, 243-264], has pointed out that L2 writers may consciously avoid adopting qualitative research methods, undoubtedly because of the challenges that…

  11. Embracing epiphytes in sustainable forest management: a pilot study from the Highlands of Chiapas, Mexico

    NARCIS (Netherlands)

    J.H.D. Wolf

    2010-01-01

    Vascular epiphyte biomass and species richness were investigated in 16 anthropogenically disturbed pine-oak forests within an area of ~400 km2 in the Highlands of Chiapas, southern Mexico. Epiphyte biomass on 35 host oak trees in six diameter classes varied from 0.8 to 243 kg dry-weight and comprise

  12. Organic carbon in the sediments of Mandovi estuary, Goa

    Digital Repository Service at National Institute of Oceanography (India)

    Alagarsamy, R.

    Total organic carbon (TOC) in surficial sediments in Mandovi Estuary, Goa, India varies widely from 0.1 to 3% (av. 1.05%). Highest values of TOC (2.4-3%) lie close to the mouth region and indicate no definite trend in its variation in the estuarine...

  13. The generalizability of the Youth Self-Report syndrome structure in 23 societies

    DEFF Research Database (Denmark)

    Ivanova, Masha Y; Achenbach, Thomas M; Rescorla, Leslie A;

    2007-01-01

    (CFAs) were performed on the Youth Self-Report (T. M. Achenbach & L. A. Rescorla, 2001) completed by 30,243 youths 11-18 years old from 23 societies. The 8-syndrome taxonomic model met criteria for good fit to the data from each society. This was consistent with findings for the parent-completed Child...

  14. L'algebra dei transiti planetari sul Sole

    Science.gov (United States)

    Sigismondi, Costantino

    2016-05-01

    The periodicity of Mercury and Venus' transits is regulated by the resonances of the orbital periods of these planets with the Earth's one. A simple algebraic approach is presented for explaining the resonance of 243 years of Venus and the one of 46 years for Mercury and the transits in May and November for Mercury and June and December for Venus.

  15. An Examination of Multiple Intelligence Domains and Learning Styles of Pre-Service Mathematics Teachers: Their Reflections on Mathematics Education

    Science.gov (United States)

    Ozgen, Kemal; Tataroglu, Berna; Alkan, Huseyin

    2011-01-01

    The present study aims to identify pre-service mathematics teachers' multiple intelligence domains and learning style profiles, and to establish relationships between them. Employing the survey model, the study was conducted with the participation of 243 pre-service mathematics teachers. The study used the "multiple intelligence domains inventory…

  16. A Case Study of Women Presidents of Texas Private Colleges and Universities and Their Followership

    Science.gov (United States)

    Gregory, Shelley E.

    2016-01-01

    The purpose of this current case study was to document how women presidents of private Texas colleges and universities describe their leadership. The percentage of Texas women presidents (24.3%) closely mirrors the U.S. national average (26.4%) of women presidents of colleges and universities, yet the percentage of Texas women presidents of…

  17. Occurrence of Salmonella in retail beef and related meat products in Zaria, Nigeria

    DEFF Research Database (Denmark)

    Tafida, S.Y.; Kabir, J.; Kwaga, J.K.P.;

    2013-01-01

    serotyped. Confirmed isolates were evaluated in vitro for susceptibilities to 18 commonly used antimicrobial agents. Ten samples (2.3%) were positive for Salmonella. Raw beef samples had the highest isolation rates (2.43%). All the 10 Salmonella isolates were found to carry the invA gene. All the isolates...

  18. Molecular Characterization of a Foot-and-Mouth Disease Virus (FMDV) Containing a 57-Nucleotide Insertion in the 3' Untranslated Region (3'UTR)

    Science.gov (United States)

    A foot-and-mouth disease virus (FMDV) virus containing a 57 nt insertion in the 3’ untranslated region (3’UTR) was generated by a transposon (tn) mediated mutagenesis. Characterization of the mutant virus (A24-3’UTR8110) revealed no significant differences in virus growth, translation efficiency and...

  19. AcEST: BP914053 [AcEST

    Lifescience Database Archive (English)

    Full Text Available alignments: (bits) Value sp|Q5DM57|IF172_CHLRE Intraflagellar transport protein 172 OS=Ch... 33 1.1 sp|Q6PBN5|AUP1_DANRE Ancient...SSCIVSSERKFIGLSKSVLGEILH 243 + ++++ ++ L KS+ +LH Sbjct: 1476 QVFAQHGITAQPQYFELYKSIAQGVLH 1502 >sp|Q6PBN5|AUP1_DANRE Ancient

  20. 7 CFR 2.24 - Assistant Secretary for Administration.

    Science.gov (United States)

    2010-01-01

    ... CFR, 1978 Comp., p. 243); (H) Implementation of the Uniform Relocation Assistance and Real Property... Populations and Low-Income Populations. (xv) Take such action as may be necessary, with the affected agency... disposing of real and personal property, including control of space assignments; (B) Acquiring,...

  1. The Predictors of Distress in Parents of Children with Autism Spectrum Disorder

    Science.gov (United States)

    Firth, Ian; Dryer, Rachel

    2013-01-01

    Background: It is well recognised that parents of children with autism spectrum disorder (ASD) often experience clinically significant levels of stress and depression. This study examined which ASD characteristic best predicted parental distress. Method: Parents of 109 children aged between 4 and 12 (M age = 7.89, SD = 2.43) completed self-report…

  2. 75 FR 61051 - Reorganization of Title 30, Code of Federal Regulations

    Science.gov (United States)

    2010-10-04

    ... reorganization, the Secretary renamed MMS's Minerals Revenue Management Program (MRM) the Office of Natural... of Natural Resources Revenue (ONRR); the Bureau of Ocean Energy Management (BOEM); and the Bureau of.... Part 243--Suspensions Pending Appeal and Bonding--Minerals Revenue Management, which becomes part...

  3. 75 FR 41123 - Radio Broadcasting Services; Gearhart, OR

    Science.gov (United States)

    2010-07-15

    ... COMMISSION 47 CFR Part 73 . Radio Broadcasting Services; Gearhart, OR AGENCY: Federal Communications... comment on a petition filed by Black Hills Broadcasting, L.P. proposing the allotment of FM Channel 243A... Radio, Radio broadcasting. For the reasons discussed in the preamble, the Federal...

  4. Una propuesta de formación en tecnología para docentes de pedagogía /

    OpenAIRE

    Ramírez Torres, Luis Miguel

    2011-01-01

     tesis que para obtener el grado de Doctor en Pedagogía, presenta Luis Miguel Ramírez Torres ; asesor Emilio Aguilar Rodríguez. 243 páginas : diagramas. Doctorado en Pedagogía UNAM, Facultad de Estudios Superiores Aragón, 2011

  5. 75 FR 69454 - Emergency Homeowners' Loan Program: Notice of Allocation of Funding for Substantially Similar...

    Science.gov (United States)

    2010-11-12

    ... number for this notice is FR-5454-N-01. E. Dates: The Deadline Date is December 13, 2010. Information..., without regard to race, color, religion, sex, familial status, national origin, or disability. 5...,668 Idaho 13,284,075 New Hampshire 12,655,243 New Mexico 10,725,515 Maine 10,379,657 West Virginia...

  6. Longitudinal Test of Self-Determination Theory's Motivation Mediation Model in a Naturally Occurring Classroom Context

    Science.gov (United States)

    Jang, Hyungshim; Kim, Eun Joo; Reeve, Johnmarshall

    2012-01-01

    This study provides the first longitudinally designed, classroom-based empirical test of self-determination theory's motivation mediation model. Measures of perceived autonomy support, motivation (autonomy need satisfaction), engagement, and achievement were collected from 500 (257 females, 243 males) 8th-grade students in Korea in a 3-wave…

  7. Monitoring load, recovery and performance in young elite soccer players

    NARCIS (Netherlands)

    Brink, Michel S.; Nederhof, Esther; Visscher, Chris; Schmikli, Sandor L.; Lemmink, Koen A. P. M.

    2010-01-01

    Brink, MS, Nederhof, E, Visscher, C, Schmikli, SL, and Lemmink, KAPM. Monitoring load, recovery, and performance in young elite soccer players. J Strength Cond Res 24(3): 597603, 2010-The purpose of this study was to investigate the relation between training load, recovery, and monthly field test pe

  8. 10 CFR Appendix B to Part 436 - Goal Setting Methodology

    Science.gov (United States)

    2010-01-01

    ... switching. EC04OC91.243 A comparison of these projections will show the energy use avoidance resulting from... natural gas • Services, such as postal delivery Customers served or pounds delivered Gallons of automotive... renewable or nonrenewable fuel sources. Step 2: Project for each fiscal year, the avoidance in the use...

  9. Synthetic methods in phase equilibria: A new apparatus and error analysis of the method

    DEFF Research Database (Denmark)

    Fonseca, José; von Solms, Nicolas

    2014-01-01

    A new apparatus for the study of high-pressure phase equilibria using a synthetic method is described. The apparatus was especially developed for the study of solubilities of gases in condensed phases, at temperatures ranging from 243 K to 353 K and pressures up to 20 MPa. The quality of the equi...

  10. 19 CFR Appendix to Part 102 - Textile and Apparel Manufacturer Identification

    Science.gov (United States)

    2010-04-01

    ... would yield “HON,” Singapore would yield “SIN,” and Macau would yield “MAC.” 6. As a general rule, in... Bremond, France; FRLAVIE243BRE 20TH CENTURY TECHNOLOGIES, 5 Ricardo Munoz, Suite 5880, Caracas,...

  11. Socialization of New Teachers: Does Induction Matter?

    Science.gov (United States)

    Nasser-Abu Alhija, Fadia; Fresko, Barbara

    2010-01-01

    The present paper focuses on new teachers' satisfaction with their first year of teaching from the perspective of socialization. The relationship between satisfaction with socialization and teacher background, school environment, placement, and induction variables was examined. Data were collected from 243 Israeli beginning teachers by means of…

  12. 78 FR 1763 - Oranges and Grapefruit Grown in Lower Rio Grande Valley in Texas; Increased Assessment Rate

    Science.gov (United States)

    2013-01-09

    ... that the identity of the individuals or entities submitting the comments will be made public on the... Mexican fruit fly control program; and $243,000 for management, administration, and compliance. Budgeted... fiscal period include $575,000 for promotion; $489,500 for the Mexican fruit fly control program;...

  13. 19 CFR 10.248 - Additional requirements for preferential treatment of brassieres.

    Science.gov (United States)

    2010-04-01

    ... articles that meet the description in § 10.243(a)(4) buys for the U.S., Canadian and Mexican markets; the... Use Only Year ending date: September 30, Assigned number: Assignment date: 2. Identity of preparer... States was at least 75 percent (or 85 percent, if applicable under 19 CFR 10.248(b)(1)(ii)) of...

  14. 49 CFR 372.300 - Distances and population data.

    Science.gov (United States)

    2010-10-01

    ... in 49 CFR 372.243. See also definitions in 49 CFR 372.239. ... 49 Transportation 5 2010-10-01 2010-10-01 false Distances and population data. 372.300 Section 372..., COMMERCIAL ZONES, AND TERMINAL AREAS Terminal Areas § 372.300 Distances and population data. In...

  15. Dicty_cDB: Contig-U05111-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available e from clone CH211-269M1 in ... 34 0.004 7 ( AC226639 ) Lama pacos clone CH246-29... DNA sequence from clone DKEY-145J6 in l... 38 0.083 4 ( AC232666 ) Lama pacos clone CH246-243P10, WORKING D

  16. Success for All: Eroding the Culture of Power in the One-to-One Teaching and Learning Context

    Science.gov (United States)

    Rakena, Te Oti; Airini,; Brown, Deidre

    2016-01-01

    This study applied a cultural lens to the "expert-novice dyad" (Kennell, 2002, p. 243) and explored the learning experiences of indigenous minorities studying in this context. The purpose of this study was to gather narratives that reflected the nature of teaching practices in the one-to-one studio context. The resulting data presented…

  17. Dicty_cDB: Contig-U10415-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available ormation vector pOKE104, com... 243 9e-63 EF106972_17( EF106972 |pid:none) Uncultur...ecName: Full=3-methyl-2-oxobutanoate hydroxymethyltran... 244 4e-63 FJ599664_2( FJ599664 |pid:none) Transf

  18. 78 FR 78302 - Proposed Modification and Establishment of Air Traffic Service (ATS) Routes in the Vicinity of...

    Science.gov (United States)

    2013-12-26

    ... provides navigation guidance for a portion of V-243. This action would enhance the safety and efficient management of aircraft within the National Airspace System (NAS). DATES: Comments must be received on or... and Airspace Docket No. 13-AGL-8) and be submitted in triplicate to the Docket Management...

  19. Draft Genome Sequence of Photorhabdus luminescens subsp. laumondii HP88, an Entomopathogenic Bacterium Isolated from Nematodes.

    Science.gov (United States)

    Ghazal, Shimaa; Oshone, Rediet; Simpson, Stephen; Morris, Krystalynne; Abebe-Akele, Feseha; Thomas, W Kelley; Khalil, Kamal M; Tisa, Louis S

    2016-01-01

    Photorhabdus luminescens subsp. laumondii HP88 is an entomopathogenic bacterium that forms a symbiotic association with Heterorhabditis nematodes. We report here a 5.27-Mbp draft genome sequence for P. luminescens subsp. laumondii HP88, with a G+C content of 42.4% and containing 4,243 candidate protein-coding genes. PMID:26988056

  20. Learning Environments as Basis for Cognitive Achievements of Students in Basic Science Classrooms in Nigeria

    Science.gov (United States)

    Atomatofa, Rachel; Okoye, Nnamdi; Igwebuike, Thomas

    2016-01-01

    The nature of classroom learning environments created by teachers had been considered very important for learning to take place effectively. This study investigated the effect of creating constructivist and transmissive learning environments on achievements of science students of different ability levels. 243 students formed the entire study…

  1. Confirmatory Factor Analysis of the Conformity to Feminine Norms Inventory and Development of an Abbreviated Version: The CFNI-45

    Science.gov (United States)

    Parent, Mike C.; Moradi, Bonnie

    2010-01-01

    The present study undertakes the first factor analysis of the Conformity to Feminine Norms Inventory (CFNI) conducted since the instrument's development. Confirmatory factor analysis using data from 243 women offered mixed support for the original 84-item CFNI structure and pointed to ways to modify the structure and reduce the length of the…

  2. AcEST: DK945247 [AcEST

    Lifescience Database Archive (English)

    Full Text Available EWFGKF 572 + WF F Sbjct: 236 QIYWFNHF 243 >sp|Q6P7K0|CMBL_XENTR Carboxymethylenebutenolidase homolog OS=Xenopus tropicalis GN=cmb...5 >sp|Q5XH09|CMBL_XENLA Carboxymethylenebutenolidase homolog OS=Xenopus laevis GN=cmb

  3. Frequencies as Proportions: Using a Teaching Model Based on Pirie and Kieren's Model of Mathematical Understanding

    Science.gov (United States)

    Wright, Vince

    2014-01-01

    Pirie and Kieren (1989 "For the learning of mathematics", 9(3)7-11, 1992 "Journal of Mathematical Behavior", 11, 243-257, 1994a "Educational Studies in Mathematics", 26, 61-86, 1994b "For the Learning of Mathematics":, 14(1)39-43) created a model (P-K) that describes a dynamic and recursive process by which…

  4. 25 CFR 170.450 - What archeological and environmental requirements must the IRR Program meet?

    Science.gov (United States)

    2010-04-01

    ...-governance agreements for the IRR Program are in 25 CFR 900.125 and 1000.243. ... 25 Indians 1 2010-04-01 2010-04-01 false What archeological and environmental requirements must... Reservation Roads Program Facilities Environmental and Archeological Requirements § 170.450 What...

  5. 5 CFR 180.101 - Scope and purpose.

    Science.gov (United States)

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Scope and purpose. 180.101 Section 180.101 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS EMPLOYEES...' Claims Act of 1964, 31 U.S.C. 240 to 243, authorizes the Director, Office of Personnel Management...

  6. 40 CFR 98.7 - What standardized methods are incorporated by reference into this part?

    Science.gov (United States)

    2010-07-01

    ... reference were approved by the Director of Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR...) Standard Test Method for Major and Minor Elements in Combustion Residues from Coal Utilization Processes..., Virginia 22203, (703) 243-5463, http://www.lime.org. (1) CO2 Emissions Calculation Protocol for the...

  7. A Study of Social Cognitive Theory: The Relationship between Professional Learning Communities and Collective Teacher Efficacy in International School Settings

    Science.gov (United States)

    Hardin, James

    2010-01-01

    In "Self-Efficacy: The Exercise of Control" (1997), Albert Bandura writes, "Teachers operate collectively within an interactive social system rather than as isolates" (p. 243). Bandura's attention to the existence of the communal systems that exist in schools is an appreciation shared by many educational reformers, especially those who advocate…

  8. An Exploratory Study of the Relationship between Collaboration and Mathematics and Game Outcomes. CRESST Report 797

    Science.gov (United States)

    Buschang, Rebecca E.; Chung, Gregory K. W. K.; Kim, Jinok

    2011-01-01

    This study is an exploratory study of the relationship between collaboration and mathematics and game outcomes in a video game aimed at teaching concepts related to rational numbers. The sample included 243 middle school students who played the video game either with one partner or individually for 40 minutes. Results suggest that participants…

  9. Dicty_cDB: AFA807 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available enopus laevis enolase 3, beta mus... 243 2e-63 DQ497988_1( DQ497988 |pid:none) Polypterus senegalus enolase ...( DQ497985 |pid:none) Polypterus senegalus enolase A mRN... 241 9e-63 (Q9W7L0) RecName: Full=Alpha-enolase;

  10. Dicty_cDB: CHH178 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available etters to be indexed on context 0 ANTI-DNA BLAST search was processed by blast@ni...s) S1: 12 (24.3 bits) S2: 20 (40.1 bits) [blastall] WARNING: [000.000] 1099631534.dbm.dna: Blast: No valid l

  11. EST Table: AU005278 [KAIKOcDNA[Archive

    Lifescience Database Archive (English)

    Full Text Available AU005278 ws30487 10/09/28 88 %/235 aa ref|NP_001036933.1| molting fluid carboxypept...idase A [Bombyx mori] dbj|BAD60916.1| molting fluid carboxypeptidase A [Bombyx mori] 10/08/28 40 %/243 aa FB

  12. Gclust Server: 161234 [Gclust Server

    Lifescience Database Archive (English)

    Full Text Available 161234 NCR_NCU04572 Cluster Sequences - 242 predicted protein (translation) (243 aa...); no annotation 1 1.00e-99 0.0 0.0 0.0 0.0 0.0 12.5 Show 161234 Cluster ID 161234 Sequence ID NCR_NCU04572

  13. Sugar-sweetened beverages consumption in relation to changes in body fatness over 6 and 12 years among 9-year-old children

    DEFF Research Database (Denmark)

    Zheng, M; Rangan, A; Olsen, Lasse P.N.;

    2014-01-01

    Background/Objectives:In parallel with the obesity epidemic, consumption of sugar-sweetened beverages (SSB) has risen over the same period. Our aim was to investigate associations between the consumption of SSB in childhood and adolescence with subsequent changes in body fatness in early adulthoo...... Nutrition advance online publication, 27 November 2013; doi:10.1038/ejcn.2013.243....

  14. File list: ALL.Bld.20.AllAg.Leukemic_bone_marrow [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ALL.Bld.20.AllAg.Leukemic_bone_marrow mm9 All antigens Blood Leukemic bone marrow S...243 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/ALL.Bld.20.AllAg.Leukemic_bone_marrow.bed ...

  15. File list: ALL.Bld.10.AllAg.Leukemic_bone_marrow [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available ALL.Bld.10.AllAg.Leukemic_bone_marrow mm9 All antigens Blood Leukemic bone marrow S...243 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/ALL.Bld.10.AllAg.Leukemic_bone_marrow.bed ...

  16. KONTRIBUSI KOMPETENSI EMOSIONAL DAN PRAKTIK KEPEMIMPINAN TRANSFORMASIONAL KEPALA SEKOLAH TERHADAP KEBERDAYAAN GURU SEKOLAH MENENGAH KEJURUAN

    OpenAIRE

    Syamsul Hadi

    2016-01-01

    Abstract: Contributions of Principals' Emotional Competencies and Transformational Leadership Practices to Vocational High School Teachers Empowerment. This study was intended to empirically investigate the indirect effect of principals' emotional competencies on teacher empowerment through the transformational leadership practiced by the principals. Data were collected from 243 teachers working at 74 Vocational High Schools (VHS) in territory of Malign Ray. Teachers' perceived questionnaires...

  17. Draft Genome Sequence of Photorhabdus luminescens subsp. laumondii HP88, an Entomopathogenic Bacterium Isolated from Nematodes

    OpenAIRE

    Ghazal, Shimaa; Oshone, Rediet; Simpson, Stephen,; Morris, Krystalynne; Abebe-Akele, Feseha; Thomas, W. Kelley; Khalil, Kamal M.; Tisa, Louis S.

    2016-01-01

    Photorhabdus luminescens subsp. laumondii HP88 is an entomopathogenic bacterium that forms a symbiotic association with Heterorhabditis nematodes. We report here a 5.27-Mbp draft genome sequence for P. luminescens subsp. laumondii HP88, with a G+C content of 42.4% and containing 4,243 candidate protein-coding genes.

  18. ПРИВЕРЖЕННОСТЬ ОТДЕЛЬНЫХ ГРУПП НАСЕЛЕНИЯ ЗДОРОВОМУ ОБРАЗУ ЖИЗНИ

    OpenAIRE

    Аброськина, О.; Силина, Е.

    2013-01-01

    Research objective — studying of factors of a way of life, working conditions and self-image of health of employees of medical branch. In total according to the special program 243 persons are interrogated, the greatest share of persons (80,9%) consider that lead a healthy lifestyle

  19. Domain Modeling: NP_004604.2 [SAHG[Archive

    Lifescience Database Archive (English)

    Full Text Available NP_004604.2 chr20 Transglutaminase 2 undergoes large conformational change upon act...ivation c2q3za_ chr20/NP_004604.2/NP_004604.2_holo_1-683.pdb blast 169Q,176K,241W,243N,245Y,252M,276Q,277C,2

  20. Stress and Coping among Migrant and Local-Born Adolescents in Hong Kong

    Science.gov (United States)

    Tam, Vicky Chiu-Wan; Lam, Rebecca Siu-Yuk

    2005-01-01

    This study compared stress and coping among 243 migrant and 750 local-born Chinese adolescents in Hong Kong. Findings showed that compared to their local-born counterparts, migrants showed no difference in perceived stress, whereas they were less likely to use withdrawal coping and showed higher self-esteem and less delinquent behavior. Adjustment…

  1. Gclust Server: 32665 [Gclust Server

    Lifescience Database Archive (English)

    Full Text Available 32665 DPTM_GSPATP00000511001 Cluster Sequences Related Sequences(16) 243 no annotat...ion 3 1.00e-70 0.0 11.11 0.0 0.0 0.0 0.0 Show 32665 Cluster ID 32665 Sequence ID DPTM_GSPATP00000511001 Link

  2. EVALUATION OF MASS DRUG ADMINISTRATION FOR ELIMINATION OF LYMPHATIC FILARIASIS IN GUNTUR DISTRICT, ANDHRA PRADESH

    OpenAIRE

    Purnamma; Neelima,

    2015-01-01

    BACKGROUND : Lymphatic Filariasis (LF) is a serious Socio Economic and Public Health problem in the world. In India, it is estimated that 554.2 million populations are at risk of Lymphatic Filariasis infection, in 243 implementation units (Districts). National Health Policy, 2002 aims at elimination of transmission and prevention of disability ...

  3. 7 CFR 2.79 - Administrator, Agricultural Marketing Service.

    Science.gov (United States)

    2010-01-01

    ... delegated to the Secretary by Executive Order 12580, 3 CFR, 1987 Comp., p. 193, under the following... pollution control standards and section 1-601 of Executive Order 12088, 3 CFR, 1978 Comp., p. 243, to enter... 7 Agriculture 1 2010-01-01 2010-01-01 false Administrator, Agricultural Marketing Service....

  4. ARL Supplementary Statistics, 2006-2007

    Science.gov (United States)

    Bland, Les, Comp.; Kyrillidou, Martha, Comp.

    2009-01-01

    This report presents statistics on how Association of Research Libraries (ARL) member libraries spend money on electronic resources. This report indicates that 108 ARL libraries purchased 25,006,758 electronic books. In 2006-2007, there was an ARL median of 243,725 acquisitions of electronic books (this includes one institution that purchased…

  5. Contributions of developmental psychology to peace education

    NARCIS (Netherlands)

    L. Oppenheimer

    2010-01-01

    According to Resolution A/52/243 of the UN General Assembly (United Nations, 1998), "The purposes and principles of the United Nations . . . has been a major act towards transformation from a culture of war and violence to a culture of peace and non-violence" (p. 1). A culture of peace is then said

  6. Basic Psychological Skills Usage and Competitive Anxiety Responses: Perceived Underlying Mechanisms

    Science.gov (United States)

    Wadey, Ross; Hanton, Sheldon

    2008-01-01

    This study examined the relationship between basic psychological skills usage (i.e., goal-setting, imagery, self-talk, and relaxation) and the intensity and directional dimensions of competitive anxiety. Semistructured interviews were used on a sample of 15 elite athletes (M age = 24.3 years, SD = 4.2) from a variety of team and individual sports.…

  7. 20 CFR 617.55 - Overpayments; penalties for fraud.

    Science.gov (United States)

    2010-04-01

    ... 20 Employees' Benefits 3 2010-04-01 2010-04-01 false Overpayments; penalties for fraud. 617.55... § 617.55 Overpayments; penalties for fraud. (a) Determination and repayment. (1) If a State agency or a... of fraud under paragraph (b) of this section or section 243 of the Act. (B) An affirmative finding...

  8. 8 CFR 250.1 - Application.

    Science.gov (United States)

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Application. 250.1 Section 250.1 Aliens and Nationality DEPARTMENT OF HOMELAND SECURITY IMMIGRATION REGULATIONS REMOVAL OF ALIENS WHO HAVE FALLEN INTO DISTRESS § 250.1 Application. Application for removal shall be made on Form I-243. No appeal shall lie...

  9. Gender, Information and Communication Networks: Implications for Extension.

    Science.gov (United States)

    Subedi, A.; Garforth, Chr.

    1996-01-01

    In Nepal a study of 243 female and 179 male farmers showed that males demonstrated horizontal communication patterns among themselves; females actively sought information in both horizontal and heterogeneous patterns. Extension strategies that take advantage of gender-based networks were suggested to increase the flow of information. (SK)

  10. Vowel devoicing and the perception of spoken Japanese words

    NARCIS (Netherlands)

    Cutler, A.; Otake, T.; McQueen, J.M.

    2009-01-01

    Three experiments, in which Japanese listeners detected Japanese words embedded in nonsense sequences, examined the perceptual consequences of vowel devoicing in that language. Since vowelless sequences disrupt speech segmentation [Norris et al. (1997). Cognit. Psychol. 34, 191–243], devoicing is po

  11. Relationships among Shyness, Social Competence, Peer Relations, and Theory of Mind among Pre-Adolescents

    Science.gov (United States)

    Kokkinos, Constantinos M.; Kakarani, Styliani; Kolovou, Demetra

    2016-01-01

    The present study examined the relationships between shyness, a number of personal and interpersonal variables (i.e. social skills, self-esteem, attachment style, advanced Theory of Mind skills and peer relations) in a sample of 243 Greek pre-adolescents. Participants completed self-reports of the variables. Results indicated that females scored…

  12. Existence of periodic solutions for the Lotka-Volterra type systems

    Science.gov (United States)

    Hirano, Norimichi; Rybicki, Sławomir

    In this paper we prove the existence of nonstationary periodic solutions of delay Lotka-Volterra equations. In the proofs we use the S-degree due to Dylawerski et al. [G. Dylawerski, K. Geba, J. Jodel, W. Marzantowicz, An S-equivariant degree and the Fuller index, Ann. Polon. Math. 63 (1991) 243-280].

  13. Assignment of FUT8 to chicken chromosome band 5q1.4 and to human chromosome 14q23.2-->q24.1 by in situ hybridization. Conserved and compared synteny between human and chicken

    NARCIS (Netherlands)

    Coullin, Ph.; Crooijmans, R.P.M.A.; Groenen, M.A.M.; Heilig, R.; Mollicone, R.; Oriol, R.; Candelier, J.J.

    2002-01-01

    The human FUT8 gene is implicated in crucial developmental stages and is overexpressed in some tumors and other malignant diseases. Based on three different experiments we have assigned the FUT8 gene to chromosome bands 14q23.2 --> q24.1 and not 14q24.3 as previously shown (Yamaguchi et al., 1999

  14. Cerebrospinal fluid vasopressin in neurological and psychiatric disorders.

    OpenAIRE

    Sørensen, P S; Gjerris, A; Hammer, M.

    1985-01-01

    Vasopressin was determined in CSF and plasma of 243 patients with different neurological and psychiatric disorders, including control patients. CSF vasopressin was significantly higher in patients with high pressure hydrocephalus, intracranial tumour, benign intracranial hypertension, intracranial haemorrhage, ischaemic stroke, and craniocerebral trauma. In patients with primary degenerative dementia, CSF vasopressin was lower than in control patients. Among patients with psychiatric disorder...

  15. Whole genome sequence of “Candidatus Profftella armatura” from Diaphorina citri in Guangdong, China

    Science.gov (United States)

    The genome of “Candidatus Profftella armatura” strain YCPA, a symbiont of Asian citrus psyllid, from Guangdong, China, was sequenced. The strain chromosome was 457,565 bp with 24.3% G+C content, 364 predicted open reading frames (ORFs), and 38 RNA genes. The strain also contains a 5,458 bp plasmid, ...

  16. Anthony Richards, Peter Fussey and Andrew Silke (eds.. Terrorism and the Olympics: Major event security and lessons for the future.

    Directory of Open Access Journals (Sweden)

    Robert W Hand

    2012-07-01

    Full Text Available Routledge: Oxon UK, 2011. pp. 243. Hardcover: £68.50-£81.00. ISBN: 978–0–415–49939–2. Paperback (Avail. 1 Apr 2012: £24.95. Amazon Kindle: £56.52. Reviewed by Robert W. Hand University of Aberdeen Istanbul, Turkey

  17. 47 CFR 2.1505 - Test instrumentation and equipment.

    Science.gov (United States)

    2010-10-01

    ... TREATY MATTERS; GENERAL RULES AND REGULATIONS FCC Procedure for Testing Class A, B and S Emergency... 243 MHz is required for generating a reference signal for site calibration. (f) Antenna. Radiated emissions are to be measured with calibrated, tuned, half-wave dipole antennas covering the frequency...

  18. AcEST: DK960689 [AcEST

    Lifescience Database Archive (English)

    Full Text Available p|Q9LYN2|FRI3_ARATH Ferritin-3, chloroplastic OS=Arabidopsis th... 203 6e-53 sp|Q94FY2|FRI_MALXI Ferritin, chloroplastic OS=Malus xia...DLQLQG 582 KGHG +HFD +L G Sbjct: 243 KGHGTWHFDQELLG 256 >sp|Q94FY2|FRI_MALXI Ferritin, chloroplastic OS=Malus xiao

  19. Correction: Whiley, H., et al. Detection of Legionella, L. pneumophila and Mycobacterium Avium Complex (MAC along Potable Water Distribution Pipelines. Int. J. Environ. Res. Public Health 2014, 11, 7393–7405

    Directory of Open Access Journals (Sweden)

    Harriet Whiley

    2014-11-01

    Full Text Available The authors wish to add the following amendments and corrections to their paper published in IJERPH [1].Page 7398, Table 1: The average water temperature measured in summer is 24.3 °C not 4.3 °C. The correct Table 1 should therefore be: [...

  20. 76 FR 34541 - Child and Adult Care Food Program Improving Management and Program Integrity

    Science.gov (United States)

    2011-06-13

    ... improve Program management and integrity in the Child and Adult Care Food Program (CACFP), at 67 FR 43447 (June 27, 2002) and at 69 FR 53501 (September 1, 2004). Section 243 of Public Law 106-224, the... rule was issued in proposed form on September 12, 2000 (65 FR 55101). In response to State and...

  1. Drug: D07989 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D07989 Drug Fomivirsen (INN) C204H243N63O114P20S20 6657.4321 6662.2412 Antisense antiviral used in the thera...py of cytomegalovirus retinitis [DS:H00368] ATC code: S01AD08 Antisense oligonucleo

  2. La transformación y evolución de la vivienda vernácula en la Costa Grande del Estado de Guerrero /

    OpenAIRE

    Ascencio López, Osvaldo sustentante.

    2009-01-01

     tesis que para obtener el grado de Doctor en Arquitectura, presenta Osvaldo Ascencio López ; asesor Fernando Martín Juez. 243 páginas : ilustraciones. Doctorado en Arquitectura UNAM, Facultad de Arquitectura, 2009

  3. AcEST: DK961430 [AcEST

    Lifescience Database Archive (English)

    Full Text Available Sbjct: 351 -PSHGKGECFRYYH 363 >tr|Q1R2N0|Q1R2N0_ECOUT Putative uncharacterized protein OS=Escherichia coli (strain UTI89 / UPEC... coli O6:K15:H31 (strain 536 / UPEC) GN=ECP_4622 PE=4 SV=1 Length = 243 Score = 3

  4. 78 FR 28258 - mPower\\TM\\ Design-Specific Review Standard

    Science.gov (United States)

    2013-05-14

    ... ML12221A021 Radioactive Liquid Effluents in Ground and Surface Waters. 2.4.14 Technical ML12221A022... Structures of Steel Containments. 3.8.4 Other Seismic Category ML13099A316 I Structures. 3.8.5 Foundations... Structural and Systems ML12272A243 Engineering--Inspecti ons, Tests, Analyses, and Acceptance Criteria....

  5. Science Teachers' and Senior Secondary Schools Students' Perceptions of Earth and Environmental Science Topics

    Science.gov (United States)

    Dawson, Vaille; Carson, Katherine

    2013-01-01

    This article presents an evaluation of a new upper secondary Earth and Environmental Science (EES) course in Western Australia. Twenty-seven EES teachers were interviewed and 243 students were surveyed about the degree of difficulty, relevance and interest of EES topics in the course. The impact of the course on students' views about EES…

  6. Dicty_cDB: Contig-U13538-1 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available 50764_1( AY350764 |pid:none) Parascaris univalens ribosomal pro... 95 2e-18 AE016817_243( AE016817 |pid:none...5e-17 EU125004_1( EU125004 |pid:none) Eurythoe complanata ribosomal prot... 91 5e-17 AY350763_1( AY350763 |pid:none) Parascaris

  7. Advances in Weight Loss Surgery: The Fully Robotic Gastric Bypass

    Medline Plus

    Full Text Available ... the patient is a 43-year-old white female who is five-feet-five-inches call, weighs approximately 243 pounds, has a body mass index or a BMI of 41, which qualifies her for the surgery. Her risk factors are increased lipids, sleep apnea, gastroesophageal reflux disease, ...

  8. Analysis of a Partial Male-Sterile Mutant of Arabidopsis thaliana Isolated from a Low-Energy Argon Ion Beam Mutagenized Pool

    Institute of Scientific and Technical Information of China (English)

    XU Min; BIAN Po; WU Yuejin; YU Zengliang

    2008-01-01

    A screen for Arabidopsis fertility mutants, mutagenized by low-energy argon ion beam, yielded two partial male-sterile mutants tc243-1 and tc243-2 which have similar phenotypes. tc243-2 was investigated in detail. The segregation ratio of the mutant phenotypes in the M2 pools suggested that mutation behaved as single Mendelian recessive mutations, tc243 showed a series of mutant phenotypes, among which partial male-sterile was its striking mutant characteristic. Phenotype analysis indicates that there are four factors leading to male sterility, a. Floral organs normally develop inside the closed bud, but the anther filaments do not elongate sufficiently to position the locules above the stigma at anthesis, b. The anther locules do not dehisce at the time of flower opening (although limited dehiscence occurs later), c. Pollens of mutant plants develop into several types of pollens at the trinucleated stage, as determined by staining with DAPI (4',6-diamidino-2-phenylindole), which shows a variable size, shape and number of nucleus. d. The viability of pollens is lower than that of the wild type on the germination test in vivo and vitro.

  9. Four days of muscle disuse impairs single fiber contractile function in young and old healthy men

    DEFF Research Database (Denmark)

    Hvid, Lars G; Suetta, Charlotte; Aagaard, Per;

    2013-01-01

    The purpose of the study was to investigate the effects of 4days of disuse (knee brace) on contractile function of isolated vastus lateralis fibers (n=486) from 11 young (24.3±0.9yrs) and 11 old (67.2±1.0yrs) healthy men having comparable levels of physical activity. Prior to disuse single fiber...

  10. Experimental human challenge infections can accelerate clinical malaria vaccine development

    NARCIS (Netherlands)

    Sauerwein, R.W.; Roestenberg, M.; Moorthy, V.S.

    2011-01-01

    Malaria is one of the most frequently occurring infectious diseases worldwide, with almost 1 million deaths and an estimated 243 million clinical cases annually. Several candidate malaria vaccines have reached Phase IIb clinical trials, but results have often been disappointing. As an alternative to

  11. Experiment list: SRX1430140 [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available or control and decision making. 28821627,98.6,6.7,243 GSM1939119: NAI-00H-ACC-NEU-H3K4ME1-1; Mus musculus; C...R of the cingulate gyrus, possessing multiple intracortical and subcortical connections, and involved in mot

  12. 10 CFR 30.72 - Schedule C-Quantities of radioactive materials requiring consideration of the need for an...

    Science.gov (United States)

    2010-01-01

    ... consideration of the need for an emergency plan for responding to a release. 30.72 Section 30.72 Energy NUCLEAR... emergency plan for responding to a release. Radioactive material 1 Release fraction Quantity (curies... .01 200,000 Curium-242 .001 60 Curium-243 .001 3 Curium-244 .001 4 Curium-245 .001 2 Europium-152...

  13. 77 FR 76604 - Submission for OMB Review; Comment Request

    Science.gov (United States)

    2012-12-28

    ... following information collection request to the Office of Management and Budget (OMB) for review and...: Business or other for-profits. Estimated Total Burden Hours: 243,675. OMB Number: 1545-1069. Type of Review... Review: Extension without change. Title: Estimated Tax on Unrelated Business Taxable Income for...

  14. Early Indications of Resilience and Their Relation to Experiences in the Home Environments of Low Birthweight, Premature Children Living in Poverty.

    Science.gov (United States)

    Bradley, Robert H.; And Others

    1994-01-01

    Examined caregiving environments for 243 premature, low birthweight infants living in poverty to determine effects on health and development. Found that children's health and development benefited significantly from six protective caregiving factors: (1) increased parental responsiveness; (2) availability of toys and learning materials; (3)…

  15. Why Are Drugs So Hard to Quit?

    Medline Plus

    Full Text Available ... Drugs So Hard to Quit? National Institute on Drug Abuse (NIDA/NIH) Subscribe Subscribed Unsubscribe 4,243 4K ... Free Will - Duration: 21:12. National Institute on Drug Abuse (NIDA/NIH) 12,843 views 21:12 Anyone ...

  16. 77 FR 33456 - Public Water Supply Supervision Program; Program Revision for the State of Washington

    Science.gov (United States)

    2012-06-06

    ... AGENCY Public Water Supply Supervision Program; Program Revision for the State of Washington AGENCY... that the State of Washington has revised its approved State Public Water Supply Supervision Primacy... Water, ] 243 Israel Road SE., 2nd floor, Tumwater, Washington 98501 and between the hours of 9:00...

  17. Zoological researches in Liberia. A list of Mammals, collected by J. Büttikofer, C. F. Sala and F. X. Stampfli, with Biological Observations

    NARCIS (Netherlands)

    Jentink, F.A.

    1888-01-01

    This paper is a continuation of Büttikofer’s papers on the zoological researches in Liberia in the Notes from the Leyden Museum, 1885, Vol. VII, p. 129 and 1886, Vol. VIII, p. 243. As well as Büttikofer’s list of the birds gives a good impression of the richness of the Avifauna in that part of Afric

  18. 77 FR 35879 - Defense Federal Acquisition Regulation Supplement: Title 41 Positive Law Codification-Further...

    Science.gov (United States)

    2012-06-15

    ... Defense Acquisition Regulations System 48 CFR Parts 201, 203, 204, 212, 213, 217, 219, 222, 225, 233, 243, 252, and Appendix I to Chapter 2 RIN 0750-AH55 Defense Federal Acquisition Regulation Supplement: Title 41 Positive Law Codification--Further Implementation (DFARS Case 2012- D003) AGENCY:...

  19. 76 FR 58137 - Defense Federal Acquisition Regulation Supplement; Positive Law Codification of Title 41 U.S.C...

    Science.gov (United States)

    2011-09-20

    ... Defense Acquisition Regulations System 48 CFR Parts 201, 209, 212, 215, 219, 232, 237, 243, 252, and Appendix I to Chapter 2 RIN 0750-AG38 Defense Federal Acquisition Regulation Supplement; Positive Law Codification of Title 41 U.S.C. (DFARS Case 2011-D036) AGENCY: Defense Acquisition Regulations...

  20. 78 FR 47703 - Food and Drug Administration Modernization Act of 1997: Modifications to the List of Recognized...

    Science.gov (United States)

    2013-08-06

    ... of Metal version. Tibial Tray Components of Total Knee Joint Replacements. 11-208........ 11-254 ISO... Method for Determination of Total Knee Replacement Constraint. 11-215........ ASTM F897-02 Reaffirmation... Laboratory Analysis; Approved Guideline. 7-243 Method for Antifungal Disk CLSI M51-A Diffusion...

  1. The Enduring Predictive Significance of Early Maternal Sensitivity: Social and Academic Competence through Age 32 Years

    Science.gov (United States)

    Raby, K. Lee; Roisman, Glenn I.; Fraley, R. Chris; Simpson, Jeffry A.

    2015-01-01

    This study leveraged data from the Minnesota Longitudinal Study of Risk and Adaptation (N = 243) to investigate the predictive significance of maternal sensitivity during the first 3 years of life for social and academic competence through age 32 years. Structural model comparisons replicated previous findings that early maternal sensitivity…

  2. Changes in household composition as determinant of changes in functional ability among old men and women

    DEFF Research Database (Denmark)

    Avlund, Kirsten; Due, Pernille; Holstein, Bjorn E;

    2002-01-01

    participated in the NORA follow-up study of 75-80 year-old men and women in Jyväskylä, Finland (N=243), Göteborg, Sweden (N=226), and Glostrup, Denmark (N=274). Functional ability was measured by tiredness and need for help in Physical and Instrumental Activities of Daily Living (PADL and IADL). Changes...

  3. Factors of human resource planning in metallurgical company

    OpenAIRE

    A. Samolejová; P. Wicher; M. Lampa; R. Lenort; J. Kutáč; A. Sikorová

    2015-01-01

    The objective of this article is to define the factors that have the most profound impact on the outputs of human resource (HR) plans and on the business plans they should be based on. The solution involved the Delphi and the Analytic Network Process (ANP) method and close cooperation with HR specialists from the Czech metallurgical branch. Web of Science 54 1 246 243

  4. A Longitudinal Study of Total Quality Management Processes in Business Colleges.

    Science.gov (United States)

    Vazzana, Gary; Elfrink, John; Bachmann, Duane P.

    2000-01-01

    Surveys of business school deans in 1995 (n=243) and 1998 (n=151) regarding total quality management (TQM) practices revealed increases in mission and strategy development, goal setting, and use of advisory boards and cross-functional teams. Few are using TQM to manage core learning processes. (SK)

  5. Cultural Consumption Patterns in South Africa: An Investigation of the Theory of Cultural Omnivores

    Science.gov (United States)

    Snowball, J. D.; Jamal, M.; Willis, K. G.

    2010-01-01

    Contrary to Bourdieu's theory ("Distinction: A social critique of the judgment of taste". Cambridge, Massachusetts: Harvard University Press (1984)) that cultural consumption of so-called "high" versus popular culture is determined by socio-economic class, Peterson ("Poetics" 21:243-258, 1992; "Poetics" 33:257-282, 2005) finds that higher income…

  6. The relation between 25-hydroxyvitamin D with peak bone mineral density and body composition in healthy young adults

    NARCIS (Netherlands)

    Boot, Annemieke M.; Krenning, Eric P.; Keizer-Schrama, Sabine M. P. F. de Muinck

    2011-01-01

    Objective: The associations between peak bone mineral density (BMD) and body composition with 25 hydroxyvitamin D (25OHD) levels in healthy young adults were evaluated. Methods: The number of participants was 464; 347 women and 117 men. The mean age was 24.3 years (range 17-31 years). BMD of the lum

  7. Chemokine receptor CCR8 is required for lipopolysaccharide-triggered cytokine production in mouse peritoneal macrophages.

    Directory of Open Access Journals (Sweden)

    Tomoyuki Oshio

    Full Text Available Chemokine (C-C motif receptor 8 (CCR8, the chemokine receptor for chemokine (C-C motif ligand 1 (CCL1, is expressed in T-helper type-2 lymphocytes and peritoneal macrophages (PMφ and is involved in various pathological conditions, including peritoneal adhesions. However, the role of CCR8 in inflammatory responses is not fully elucidated. To investigate the function of CCR8 in macrophages, we compared cytokine secretion from mouse PMφ or bone marrow-derived macrophages (BMMφ stimulated with various Toll-like receptor (TLR ligands in CCR8 deficient (CCR8-/- and wild-type (WT mice. We found that CCR8-/- PMφ demonstrated attenuated secretion of tumor necrosis factor (TNF-α, interleukin (IL-6, and IL-10 when stimulated with lipopolysaccharide (LPS. In particular, LPS-induced IL-10 production absolutely required CCR8. CCR8-dependent cytokine secretion was characteristic of PMφ but not BMMφ. To further investigate this result, we selected the small molecule compound R243 from a library of compounds with CCR8-antagonistic effects on CCL1-induced Ca2+ flux and CCL1-driven PMφ aggregation. Similar to CCR8-/- PMφ, R243 attenuated secretion of TNF-α, IL-6, and most strikingly IL-10 from WT PMφ, but not BMMφ. CCR8-/- PMφ and R243-treated WT PMφ both showed suppressed c-jun N-terminal kinase activity and nuclear factor-κB signaling after LPS treatment when compared with WT PMφ. A c-Jun signaling pathway inhibitor also produced an inhibitory effect on LPS-induced cytokine secretion that was similar to that of CCR8 deficiency or R243 treatment. As seen in CCR8-/- mice, administration of R243 attenuated peritoneal adhesions in vivo. R243 also prevented hapten-induced colitis. These results are indicative of cross talk between signaling pathways downstream of CCR8 and TLR-4 that induces cytokine production by PMφ. Through use of CCR8-/- mice and the new CCR8 inhibitor, R243, we identified a novel macrophage innate immune response pathway that

  8. Effects of dendritic cell vaccines on hematogenous micrometastasis of bladder cancer carrying for PBL-SCID mice%树突状细胞疫苗对人化荷人膀胱癌SCID鼠循环微转移转归的影响

    Institute of Scientific and Technical Information of China (English)

    Bin Wang; Zhenguo Mi; Zhibin Li; Xiniing Yang; Jianwu Liu; Jiwen Song; Huiqing Chen

    2009-01-01

    Objective: To study the effect of dendritic cells loaded with whole tumor antigen on hematogenous micrometasta-sis of bladder cancer model in hu-PBL-SCID mice. Methods: T24-3 cell subset was selected from human bladder transitional cell carcinoma T24 cell line by Boyden chamber system. The SCID mice intraperitoneally injected with 4×107 hu-PBL and subcutaneously injected with 3 × 106 T24-3 cells were named hu-PBL-T24-3-SCID model. Human IgG level in the blood plasma of mice was detected by ELISA, and human CD3+, CD4+, CD8+ T cells in blood and spleen cells of mice were detected by FCM analysis for human immune reconstruction study. Human CK20 mRNA expression in mice peripheral blood was de-tected by RT-PCR to investigate metastasis of tumor cells. The PBMCs were isolated from human peripheral blood, and were induced into DCs by co-culture with rhGM-CSF and rhlL-4 in vitro. The DC vaccines were produced by co-culturing with whole tumor antigen which was purified through freezing and melting T24-3 cell subset. After T24-3 cells injected into SCID mice for 5 weeks, the mice were treated with DC vaccines. Results: All mice were initially treated at 5th week. The expression of CK20 mRNA in peripheral blood of DC vaccines treated mice was the lowest. There was 2 mice showing CK20 mRNA expression and 3 mice with metastasis tumor in PBS group. MMP-7 mRNA expression in tumor tissues of DC vaccines treated mice was statistically lower than that of PBS group (P < 0.01). Conclusion: DC vaccines have a good effect on hu-PBL-SCID mice bladder cancer model by reducing hematogenous micrometastasis.

  9. 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)

  10. 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.

  11. 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.

  12. 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

  13. 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)

  14. 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

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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

  1. 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.

  2. 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.

  3. 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

  4. 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

  5. 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.

  6. 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

  7. 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

  8. 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.

  9. 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.

  10. 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)

  11. 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)

  12. Lack of support for the association between GAD2 polymorphisms and severe human obesity.

    Directory of Open Access Journals (Sweden)

    Michael M Swarbrick

    2005-09-01

    Full Text Available The demonstration of association between common genetic variants and chronic human diseases such as obesity could have profound implications for the prediction, prevention, and treatment of these conditions. Unequivocal proof of such an association, however, requires independent replication of initial positive findings. Recently, three (-243 A>G, +61450 C>A, and +83897 T>A single nucleotide polymorphisms (SNPs within glutamate decarboxylase 2 (GAD2 were found to be associated with class III obesity (body mass index > 40 kg/m2. The association was observed among 188 families (612 individuals segregating the condition, and a case-control study of 575 cases and 646 lean controls. Functional data supporting a pathophysiological role for one of the SNPs (-243 A>G were also presented. The gene GAD2 encodes the 65-kDa subunit of glutamic acid decarboxylase-GAD65. In the present study, we attempted to replicate this association in larger groups of individuals, and to extend the functional studies of the -243 A>G SNP. Among 2,359 individuals comprising 693 German nuclear families with severe, early-onset obesity, we found no evidence for a relationship between the three GAD2 SNPs and obesity, whether SNPs were studied individually or as haplotypes. In two independent case-control studies (a total of 680 class III obesity cases and 1,186 lean controls, there was no significant relationship between the -243 A>G SNP and obesity (OR = 0.99, 95% CI 0.83-1.18, p = 0.89 in the pooled sample. These negative findings were recapitulated in a meta-analysis, incorporating all published data for the association between the -243G allele and class III obesity, which yielded an OR of 1.11 (95% CI 0.90-1.36, p = 0.28 in a total sample of 1,252 class III obese cases and 1,800 lean controls. Moreover, analysis of common haplotypes encompassing the GAD2 locus revealed no association with severe obesity in families with the condition. We also obtained functional data for the

  13. Thermophysical Properties of Lignocellulose: A Cell-scale Study down to 41K

    CERN Document Server

    Cheng, Zhe; Zhang, Lei; Wang, Xinwei

    2014-01-01

    Thermal energy transport is of great importance in lignocellulose pyrolysis for bio-fuels. The thermophysical properties of lignocellulose significantly affect the overall properties of bio-composites and the related thermal transport. In this work, cell-scale lignocellulose (mono-layer plant cells) is prepared to characterize their thermal properties from room temperature down to 41 K. The thermal conductivities of cell-scale lignocellulose along different directions show a little anisotropy due to the cell structure anisotropy. It is found that with temperature going down, the volumetric specific heat of the lignocellulose shows a slower decreasing trend against temperature than that of microcrystalline cellulose, and its value is always higher than that of microcrystalline cellulose. The thermal conductivity of lignocellulose decreases with temperature from 243 K to 317 K due to increasing phonon-phonon scatterings. From 41 K to 243 K, the thermal conductivity rises with temperature and its change mainly d...

  14. Synthesis and biological evaluation of nonionic substrate mimics of UDP-Galp as candidate inhibitors of UDP galactopyranose mutase (UGM).

    Science.gov (United States)

    Kuppala, Ramakrishna; Borrelli, Silvia; Slowski, Kathryn; Sanders, David A R; Ravindranathan Kartha, K P; Pinto, B Mario

    2015-05-01

    The synthesis of 1-[5-O-(α-D-galactopyranosyl)-D-glucityl]pyrimidine-2,4(3H)-dione and 1-[(5-O-(β-D-galactopyranosyl)-D-glucityl]pyrimidine-2,4(3H)-dione as non-ionic substrate mimics of UDP-Galp are described. UDP-Galp is a precursor of Galf, which is a primary component of the cell-wall glycans of several microorganisms. The interconversion of UDP-Galp and UDP-Galf is catalyzed by UDP galactopyranose mutase (UGM); its inhibition comprises a mode of compromising the microorganisms. The nonionic polyhydroxylated chain was intended to mimic the ionic pyrophosphate group and the ribose moiety in UDP-Galp and increase the bioavailabilities of the candidate inhibitors. Inhibition assays with UGM of Mycobacterium tuberculosis showed only weak inhibition of the enzyme by these compounds. PMID:25819094

  15. Preliminary evaluation of β3-adrenoceptor agonist-induced 18F-FDG metabolic activity of brown adipose tissue in obese Zucker rat

    International Nuclear Information System (INIS)

    Background: We have investigated β3-adrenoceptor agonist mediated brown adipose tissue (BAT) activation using 18F-FDG PET/CT in Zucker lean (ZL) and obese (ZF) rats. Methods: 18F-FDG was injected into ZL and ZF rats pretreated with saline or agonist CL316,243 for scans. 18F-FDG metabolic activity was computed as standard uptake values. Results: CL316,243 in ZL activated BAT up to 4-fold compared to saline, while ZF BAT was only up by 2 fold. The decreased activation was consistent with lower β3-adrenoceptor levels in ZF rats. Conclusions: The genetically modified ZL and ZF rats may provide a useful rat model to evaluate the significance of β3-adrenoceptor agonist-induced BAT activation in obesity

  16. Thermophysical properties of lignocellulose: a cell-scale study down to 41 K.

    Directory of Open Access Journals (Sweden)

    Zhe Cheng

    Full Text Available Thermal energy transport is of great importance in lignocellulose pyrolysis for biofuels. The thermophysical properties of lignocellulose significantly affect the overall properties of bio-composites and the related thermal transport. In this work, cell-scale lignocellulose (mono-layer plant cells is prepared to characterize their thermal properties from room temperature down to ∼ 40 K. The thermal conductivities of cell-scale lignocellulose along different directions show a little anisotropy due to the cell structure anisotropy. It is found that with temperature going down, the volumetric specific heat of the lignocellulose shows a slower decreasing trend against temperature than microcrystalline cellulose, and its value is always higher than that of microcrystalline cellulose. The thermal conductivity of lignocellulose decreases with temperature from 243 K to 317 K due to increasing phonon-phonon scatterings. From 41 K to 243 K, the thermal conductivity rises with temperature and its change mainly depends on the heat capacity's change.

  17. Prevalence of rotavirus (GARV) and coronavirus (BCoV) associated with neonatal diarrhea in calves in western Algeria

    Institute of Scientific and Technical Information of China (English)

    Selles Sidi Mohammed Ammar; Kouidri Mokhtaria; Belhamiti Belkacem Tahar; Ait Amrane Amar; Benia Ahmed Redha; Bellik Yuva; Hammoudi Si Mohamed; Niar Abdellatif; Boukra Laid

    2014-01-01

    Objective: To study the prevalence of bovine group A rotavirus (GARV) and bovine coronavirus (BCoV) in diarrheic feces from calves and the sensitive’s parameters such as age group and sex.Methods:Feces samples from 82 diarrheic dairy calves from farms around Tiaret (Western Algeria) were collected. These samples were tested by ELISA assay.Results:The present study demonstrates that the both BCoV and GARV are involved in the (12.2% alone and 2.43% associated with bovine coronavirus) and 20.73% (18.3% alone and 2.43%associated with GARV), respectively.Conclusions:The results showed that the prevalence of rotavirus and coronavirus infection are 14.63%neonatal calves’ diarrhea, where the frequency of BCoV is clearly higher than that of GARV.

  18. Prevalence, prenatal diagnosis and clinical features of oculo-auriculo-vertebral spectrum

    DEFF Research Database (Denmark)

    Barisic, Ingeborg; Odak, Ljubica; Loane, Maria;

    2014-01-01

    -auriculo-vertebral spectrum, 69.7% were diagnosed at birth, 3.9% in the first week of life and 6.1% within 1 year of life. Microtia (88.8%), hemifacial microsomia (49.0%) and ear tags (44.4%) were the most frequent anomalies, followed by atresia/stenosis of external auditory canal (25.1%), diverse vertebral (24.3%) and eye...... (24.3%) anomalies. There was a high rate (69.5%) of associated anomalies of other organs/systems. The most common were congenital heart defects present in 27.8% of patients. The prevalence of oculo-auriculo-vertebral spectrum, defined as microtia/ear anomalies and at least one major characteristic...

  19. AcEST: BP915349 [AcEST

    Lifescience Database Archive (English)

    Full Text Available LSRTPQLSDDV 456 LSR P+L D++ Sbjct: 126 LSRQPRLDDEI 136 >tr|Q38JC4|Q38JC4_PRUAR Temperature-induced lipocalin...KRA--S 243 VV D +RY G WYEIA RF+ +G TATY+L+ DG I+V+N+ + + Sbjct: 30 VVNNFDAKRYLGTWYEIARFDHRFE-RGLDKVTATYSLRDD...WALVGQPSRNYLW 420 EG A+ DP++ A LKV G Y V+ LD EYR ALV P R+YLW Sbjct: 89 TEGKAYFTGDPST--AALKVSFFGPFY-------GGY...NVIALDREYRHALVCGPDRDYLW 139 Query: 421 VLSRTPQLSDDV 456 +LSRTP +SD++ Sbjct: 140 ILSRTPTISDEM 151 >sp|P0A901|...243 VV D +RY G WYEIA RF+ +G + TATY+L+ DG ++V+N+ + G Sbjct: 30 VVNNFDAKRYLGTWYEIARFDHRFE-RGLEKVTATYSLRDDGGLNV

  20. AcEST: BP919210 [AcEST

    Lifescience Database Archive (English)

    Full Text Available YMU001_000122_E03 243 Adiantum capillus-veneris mRNA. clone: YMU001_000122_E03. BP91921...0 CL1148Contig1 Show BP919210 Clone id YMU001_000122_E03 Library YMU01 Length 243 Definition Adiantum ca...pillus-veneris mRNA. clone: YMU001_000122_E03. Accession BP919210 Tissue type prothallium Developmental stag...database search programs, Nucleic Acids Res. 25:3389-3402. Query= BP919210|Adiantum capillus-veneris mRNA, c...apped BLAST and PSI-BLAST: a new generation of protein database search programs, Nucleic Acids Res. 25:3389-3402. Query= BP91921

  1. Structure-biological activity relationship of synthetic trihydroxilated chalcones

    Directory of Open Access Journals (Sweden)

    Devia Cristina M.

    1998-01-01

    Full Text Available The bacteriostatic activity of 2?,4?,2-trihydroxychalcone; 2?,4?,3-trihydroxychalcone and 2?,4?,4-trihydroxychalcone, prepared by condensation of 2,4-dihydroxyacetophenone and benzaldehyde substituted, against Staphylococcus aureus ATCC 25923 was assayed by agar plate method. The three compounds presented important inhibition halos. In order to elucidate structure-activity relationships, the minimal inhibitory concentrations against S. aureus were determined by the broth dilution method and the results obtained were compared to that of 2',4'-dihydroxychalcone. The sequence observed was: MIC 2?,4?,3-(OH3 > MIC 2?,4?-(OH2 > MIC 2?,4?,4-(OH3 > > MIC 2?,4?,2-(OH3. These results showed that the introduction of an electron donating group (-OH in the aromatic B-ring causes an increase in bioactivity, and that the intensity of action depends on the position of the OH substitute.

  2. Tunable filter imaging of high-redshift quasar fields

    NARCIS (Netherlands)

    J. Swinbank; J. Baker; J. Barr; I. Hook; J. Bland-Hawthorn

    2012-01-01

    We have used the Taurus Tunable Filter to search for Lyα emitters in the fields of three high-redshift quasars: two at z∼ 2.2 (MRC B1256−243 and MRC B2158−206) and one at z∼ 4.5 (BR B0019−1522). Our observations had a field of view of around 35 arcmin2, and reached AB magnitudes of ∼21 (MRC B1256−24

  3. Molecular analysis of exons 6 and 7 of phenylalanine hydroxylase gene mutations in Phenylketonuria patients in Western Iran

    Directory of Open Access Journals (Sweden)

    Keyvan Moradi

    2012-01-01

    Conclusion: The frequency of R261X, the most common mutation in our study, in Iranian population is <5%. Furthermore, there is no report of detection of R176X and R243Q in Isfahan and Azeri Turkish populations. These findings confirm the common Mediterranean mutations in this local population, although with more or lower frequencies than those reported in other related studies in Iran. Therefore, it may be necessary to study the PAH gene mutations in other provinces of Iran separately.

  4. Translation of selected papers published in Nuclear Constants, No. 3(57), Moscow 1984

    International Nuclear Information System (INIS)

    The document contains the English translation of 6 papers selected for the nuclear data interest, (mainly the determination and the evaluation of the fast fission cross sections of 232Th, 235U, 238U, 237Np, 243Am) which were published in ''Topics in Atomic Science and Technology'', Series Nuclear Constants, No. 3(57), Moscow (1984). The original report was distributed as INDC(CCP)-240/G. Refs, figs and tabs

  5. Monitoring load, recovery and performance in young elite soccer players

    OpenAIRE

    Brink, Michel S.; Nederhof, Esther; Visscher, Chris; Schmikli, Sandor L.; Lemmink, Koen A. P. M.

    2010-01-01

    Brink, MS, Nederhof, E, Visscher, C, Schmikli, SL, and Lemmink, KAPM. Monitoring load, recovery, and performance in young elite soccer players. J Strength Cond Res 24(3): 597603, 2010-The purpose of this study was to investigate the relation between training load, recovery, and monthly field test performance in young elite soccer players to develop training guidelines to enhance performance. In a prospective, non-experimental cohort design, 18 young elite soccer players registered training an...

  6. Acne and anticonvulsants.

    OpenAIRE

    Greenwood, R; Fenwick, P B; Cunliffe, W J

    1983-01-01

    The severity of acne and rate of excretion of sebum were assessed in 243 patients with epilepsy taking various anticonvulsants who were in hospital long term and in matched controls derived from a normal population of 2176 people. Neither the prevalence of acne nor the sebum excretion rate significantly increased in the patients compared with the controls or in patients taking phenytoin compared with those not. It is concluded that anticonvulsant treatment does not cause acne.

  7. Flipping Activity and Subsequent Aftermarket Trading in Malaysian IPOs

    OpenAIRE

    Ruzita Abdul Rahim; Ros Zam Zam Sapian; Othman Yong; Noor Azryani Auzairy

    2013-01-01

    This paper examines the aftermarket trading volume following an initial public offering (IPO) in a sample of 243 IPOs listed on Bursa Malaysia between June 2003 and June 2008. Specifically, this study investigates the degree of flipping activity and its relationship with six ex-ante variables including IPO initial returns. Consistent with previous studies, the result of the cross-sectional multiple regression reveals a significantly strong positive relationship between initial returns and fli...

  8. Family Ownership, Related-Party Transactions and Earnings Quality

    OpenAIRE

    Sa’adiah Munir; Norman Mohd Saleh; Romlah Jaffar; Puan Yatim

    2013-01-01

    This paper examines the aftermarket trading volume following an initial public offering (IPO) in a sample of 243 IPOs listed on Bursa Malaysia between June 2003 and June 2008. Specifically, this study investigates the degree of flipping activity and its relationship with six ex-ante variables including IPO initial returns. Consistent with previous studies, the result of the cross-sectional multiple regression reveals a significantly strong positive relationship between initial returns and fli...

  9. Proposal to Enhance the Role of Oversight and Evaluation within Management Title: Propuesta para el mejoramiento de las funciones de supervisión y evaluación en la Administración

    OpenAIRE

    Inter-American Development Bank (IDB); Banco Interamericano de Desarrollo (BID)

    1999-01-01

    This proposal (RE-243) was prepared in response to Recommendation 4 of the final report entitled "Strengthening Oversight and Rebuilding Evaluation in the Bank" (RE-238) by the Working Group of the Board of Executive Directors on Oversight and Evaluation in June of 1999. The objective of this proposal is to ensure "proper and adequate coordination of the BES and OEO's work with Management through creation of new coordination mechanisms". It comprises 4 key points: 1) Appoint in the Office of ...

  10. 11Li structural information from inclusive break-up measurements

    Directory of Open Access Journals (Sweden)

    Fernández-García J. P.

    2015-01-01

    Full Text Available Structure information of 11Li halo nucleus has been obtained from the inclusive break-up measurements of the 11Li+208Pb reactions at energies around the Coulomb barrier (Elab = 24.3 and 29.8 MeV. The effective break-up energy and the slope of B(E1 distribution close to the threshold have been extracted from the experimental data.

  11. 49 CFR 172.101 - Purpose and use of hazardous materials table.

    Science.gov (United States)

    2010-10-01

    ... acid, glacial or Acetic acid solution, with more than 80 percent acid, by mass 8 UN2789 II 8, 3 A3, A6, A7, A10, B2, IB2, T7, TP2 154 202 243 1 L 30 L A Acetic acid solution, not less than 50 percent but... 30 L A Acetic acid solution, with more than 10 percent and less than 50 percent acid, by mass...

  12. Value of the SYNTAX score for periprocedural myocardial infarction according to WHO and the third universal definition of myocardial infarction: insights from the TWENTE trial

    OpenAIRE

    Tandjung, K.; Lam, M. K.; Sen, H.; Man, de, J.G.; Louwerenburg, H.; Stoel, M.; Houwelingen, van, J.C.; Linssen, G; Palen, van der, J.; Doggen, C.J.M.; Birgelen, von, C.

    2015-01-01

    Aims: The SYNTAX score is a tool to quantify the complexity of coronary artery disease. We investigated the relation between the SYNTAX score and the occurrence of a periprocedural myocardial infarction (PMI) according to the historical definition of the World Health Organization (WHO) and the recently updated universal definition of MI.Methods and results: The SYNTAX score was calculated in 1,243 patients enrolled in TWENTE, a randomised trial which assessed second-generation drug-eluting st...

  13. Band gap tunning in BN-doped graphene systems with high carrier mobility

    KAUST Repository

    Kaloni, T. P.

    2014-02-17

    Using density functional theory, we present a comparative study of the electronic properties of BN-doped graphene monolayer, bilayer, trilayer, and multilayer systems. In addition, we address a superlattice of pristine and BN-doped graphene. Five doping levels between 12.5% and 75% are considered, for which we obtain band gaps from 0.02 eV to 2.43 eV. We demonstrate a low effective mass of the charge carriers.

  14. Association between Polymorphism of B-cell Translocation Gene 2(Btg2) and Multi-vertebrae Traits of Hebei Small Tail Han Sheep%B 细胞异位基因2(Btg2)多态性与河北小尾寒羊多脊椎性状的关联分析

    Institute of Scientific and Technical Information of China (English)

    韩立霞; 孙少华; 白瑞景; 孙志颖; 刘建明; 曹忠红

    2010-01-01

    利用直接测序、PCR-RFLP及dCAPS技术研究了河北小尾寒羊(Ouis aries)B细胞异位基因2的外显子3及3'-uTR上的多态性与河北小尾寒羊多脊椎性状的相关性.经测序结果分析,发现了A150G、C243T和A607G 3个单核苷酸多态性,3个位点的PCR-RFLP分析表明,150位点产生AA、AG和GG基因型;243位点产生CC、CT和TT基因型;607位点产生AA、AG和GG基因型.独立性卡方检测结果表明,150位点的不同表型个体基因型频率差异不显著(P>0.05),243位点的差异极显著(P<0.01),607位点的差异呈显著水平(P<0.05);进一步对这3个位点进行单倍型分析,其独立性卡方检测表明单倍型在不同表型中差异显著(P<0.05).其结果表明243位点、607位点以及单倍型GTA可能与小尾寒羊多脊椎性状有关.

  15. Erythrocyte and erythrocyte function

    Institute of Scientific and Technical Information of China (English)

    1992-01-01

    920712 Significance of early diagnosis onthe treatment of chronic aplastic anemia.GONG Xiao(龚孝), et al. Air Force Hsop, Tian-jin. Chin J Hematol 1992; 13(5): 240-243. The effect of treatment in 132 cases of chronicaplastic anemia was analysed. Patients with cour-seshalf year showed an effective rate of morethan 80%. They were treated according to 6

  16. Self-Identification as a Moderator of the Relationship Between Gambling-Related Perceived Norms and Gambling Behavior

    OpenAIRE

    Foster, Dawn W.; Neighbors, Clayton; Rodriguez, Lindsey M.; Lazorwitz, Brenda; Gonzales, Rubi

    2014-01-01

    This research was designed to evaluate social influences and perceived social norms on gambling behavior among undergraduate students. Furthermore, this research was designed to replicate and extend previous research demonstrating that young adults overestimate the prevalence of gambling among peers, and that the magnitude of overestimation is positively associated with own use (Larimer and Neighbors, Psychol Addict Behav 17:235–243, 2003). We expected that; (1) gambling college students woul...

  17. Bases de datos musicales en España: una aproximación

    OpenAIRE

    Plaza-Navas, Miquel Àngel

    1998-01-01

    Comunicación presentada en el 18º Congreso de la Asociación Internacional de Bibliotecas Musicales, Archivos y Centros de Documentación, IAML / IVMB / AIBM, celebrado en San Sebastián, del 21 al 26 de junio de 1998. Esta comunicación se publicó previamente en inglés en: Fontes Artes Musicae, 1999, 46(3-4):218-243

  18. Preparation of americium amalgam

    International Nuclear Information System (INIS)

    The authors describe a method for the electrochemical preparation of an americium amalgam from americium dioxide and americium 241 and 243 for use in determining the physicochemical properties of the alloy. Moessbauer spectra were made using neptunium dioxide, in the neptunium 237 form, as an absorber. Results show that electrolysis produces a homogeneous amalgam that gives an unoxidized product on vacuum distillation at 200 degrees C

  19. Comorbid Trajectories of Tobacco and Marijuana Use as Related to Psychological Outcomes

    OpenAIRE

    Brook, Judith S.; Lee, Jung Yeon; Brown, Elaine N.; Finch, Stephen J.

    2012-01-01

    Heterogeneous classes of comorbid trajectories of tobacco and marijuana use were examined in order to determine how they are related to subsequent antisocial behavior, poor self control and internalizing behavior. Data are from a four-wave longitudinal study of African American (n=243) and Puerto Rican (n=232) adolescents and adults in the community. Logistic regression analyses were employed to measure the association between the comorbid trajectories of tobacco and marijuana use and the psy...

  20. Improved surveillance of Japanese encephalitis by detection of virus-specific IgM in desiccated blood specimens*

    OpenAIRE

    Burke, D S; Chatiyanonda, K.; Anandrik, S.; Nakornsri, S.; Nisalak, A; Hoke, C H

    1985-01-01

    An IgM antibody-capture type enzyme-linked immunoassay (MAC ELISA) was compared with the haemagglutination inhibition method (HI) for establishing a laboratory diagnosis of acute Japanese encephalitis (JE) virus infection using specimens of dried blood eluted from filter paper strips. Paired samples from 243 encephalitis patients, which had been obtained by mail through a national surveillance programme in Thailand, were tested. During the peak of the 1983 encephalitis epidemic, 72% of cases ...